---------------------------
-What: drivers depending on OSS_OBSOLETE
-When: options in 2.6.23, code in 2.6.25
-Why: obsolete OSS drivers
-Who: Adrian Bunk <bunk@stusta.de>
-
----------------------------
-
What: libata spindown skipping and warning
When: Dec 2008
Why: Some halt(8) implementations synchronize caches for and spin
#define cached_21 (((char *)(ppc_cached_irq_mask))[3])
#define cached_A1 (((char *)(ppc_cached_irq_mask))[2])
-#ifdef CONFIG_SOUND_CS4232
-long ppc_cs4232_dma, ppc_cs4232_dma2;
-#endif
-
extern PTE *Hash, *Hash_end;
extern unsigned long Hash_size, Hash_mask;
extern int probingmem;
extern unsigned long loops_per_jiffy;
-#ifdef CONFIG_SOUND_CS4232
-EXPORT_SYMBOL(ppc_cs4232_dma);
-EXPORT_SYMBOL(ppc_cs4232_dma2);
-#endif
-
/* useful ISA ports */
#define PREP_SYSCTL 0x81c
/* present in the IBM reference design; possibly identical in Mot boxes: */
return 0;
}
-#ifdef CONFIG_SOUND_CS4232
-static long __init masktoint(unsigned int i)
-{
- int t = -1;
- while (i >> ++t)
- ;
- return (t-1);
-}
-
-/*
- * ppc_cs4232_dma and ppc_cs4232_dma2 are used in include/asm/dma.h
- * to distinguish sound dma-channels from others. This is because
- * blocksize on 16 bit dma-channels 5,6,7 is 128k, but
- * the cs4232.c uses 64k like on 8 bit dma-channels 0,1,2,3
- */
-
-static void __init prep_init_sound(void)
-{
- PPC_DEVICE *audiodevice = NULL;
-
- /*
- * Get the needed resource information from residual data.
- *
- */
- if (have_residual_data)
- audiodevice = residual_find_device(~0, NULL,
- MultimediaController, AudioController, -1, 0);
-
- if (audiodevice != NULL) {
- PnP_TAG_PACKET *pkt;
-
- pkt = PnP_find_packet((unsigned char *)&res->DevicePnPHeap[audiodevice->AllocatedOffset],
- S5_Packet, 0);
- if (pkt != NULL)
- ppc_cs4232_dma = masktoint(pkt->S5_Pack.DMAMask);
- pkt = PnP_find_packet((unsigned char*)&res->DevicePnPHeap[audiodevice->AllocatedOffset],
- S5_Packet, 1);
- if (pkt != NULL)
- ppc_cs4232_dma2 = masktoint(pkt->S5_Pack.DMAMask);
- }
-
- /*
- * These are the PReP specs' defaults for the cs4231. We use these
- * as fallback incase we don't have residual data.
- * At least the IBM Thinkpad 850 with IDE DMA Channels at 6 and 7
- * will use the other values.
- */
- if (audiodevice == NULL) {
- switch (_prep_type) {
- case _PREP_IBM:
- ppc_cs4232_dma = 1;
- ppc_cs4232_dma2 = -1;
- break;
- default:
- ppc_cs4232_dma = 6;
- ppc_cs4232_dma2 = 7;
- }
- }
-
- /*
- * Find a way to push this information to the cs4232 driver
- * Give it out with printk, when not in cmd_line?
- * Append it to cmd_line and boot_command_line?
- * Format is cs4232=io,irq,dma,dma2
- */
-}
-#endif /* CONFIG_SOUND_CS4232 */
-
/*
* Fill out screen_info according to the residual data. This allows us to use
* at least vesafb.
}
}
-#ifdef CONFIG_SOUND_CS4232
- prep_init_sound();
-#endif /* CONFIG_SOUND_CS4232 */
-
prep_init_vesa();
switch (_prep_type) {
obj-$(CONFIG_VIDEO_TVAUDIO) += tvaudio.o
obj-$(CONFIG_VIDEO_TDA7432) += tda7432.o
obj-$(CONFIG_VIDEO_TDA9875) += tda9875.o
-obj-$(CONFIG_SOUND_TVMIXER) += tvmixer.o
obj-$(CONFIG_VIDEO_SAA6588) += saa6588.o
obj-$(CONFIG_VIDEO_SAA5246A) += saa5246a.o
+++ /dev/null
-/*
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/timer.h>
-#include <linux/delay.h>
-#include <linux/errno.h>
-#include <linux/slab.h>
-#include <linux/i2c.h>
-#include <linux/videodev.h>
-#include <linux/init.h>
-#include <linux/kdev_t.h>
-#include <linux/sound.h>
-#include <linux/soundcard.h>
-
-#include <asm/semaphore.h>
-#include <asm/uaccess.h>
-
-
-#define DEV_MAX 4
-
-static int devnr = -1;
-module_param(devnr, int, 0644);
-
-MODULE_AUTHOR("Gerd Knorr");
-MODULE_LICENSE("GPL");
-
-/* ----------------------------------------------------------------------- */
-
-struct TVMIXER {
- struct i2c_client *dev;
- int minor;
- int count;
-};
-
-static struct TVMIXER devices[DEV_MAX];
-
-static int tvmixer_adapters(struct i2c_adapter *adap);
-static int tvmixer_clients(struct i2c_client *client);
-
-/* ----------------------------------------------------------------------- */
-
-static int mix_to_v4l(int i)
-{
- int r;
-
- r = ((i & 0xff) * 65536 + 50) / 100;
- if (r > 65535) r = 65535;
- if (r < 0) r = 0;
- return r;
-}
-
-static int v4l_to_mix(int i)
-{
- int r;
-
- r = (i * 100 + 32768) / 65536;
- if (r > 100) r = 100;
- if (r < 0) r = 0;
- return r | (r << 8);
-}
-
-static int v4l_to_mix2(int l, int r)
-{
- r = (r * 100 + 32768) / 65536;
- if (r > 100) r = 100;
- if (r < 0) r = 0;
- l = (l * 100 + 32768) / 65536;
- if (l > 100) l = 100;
- if (l < 0) l = 0;
- return (r << 8) | l;
-}
-
-static int tvmixer_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
-{
- struct video_audio va;
- int left,right,ret,val = 0;
- struct TVMIXER *mix = file->private_data;
- struct i2c_client *client = mix->dev;
- void __user *argp = (void __user *)arg;
- int __user *p = argp;
-
- if (NULL == client)
- return -ENODEV;
-
- if (cmd == SOUND_MIXER_INFO) {
- mixer_info info;
- strlcpy(info.id, "tv card", sizeof(info.id));
- strlcpy(info.name, client->name, sizeof(info.name));
- info.modify_counter = 42 /* FIXME */;
- if (copy_to_user(argp, &info, sizeof(info)))
- return -EFAULT;
- return 0;
- }
- if (cmd == SOUND_OLD_MIXER_INFO) {
- _old_mixer_info info;
- strlcpy(info.id, "tv card", sizeof(info.id));
- strlcpy(info.name, client->name, sizeof(info.name));
- if (copy_to_user(argp, &info, sizeof(info)))
- return -EFAULT;
- return 0;
- }
- if (cmd == OSS_GETVERSION)
- return put_user(SOUND_VERSION, p);
-
- if (_SIOC_DIR(cmd) & _SIOC_WRITE)
- if (get_user(val, p))
- return -EFAULT;
-
- /* read state */
- memset(&va,0,sizeof(va));
- client->driver->command(client,VIDIOCGAUDIO,&va);
-
- switch (cmd) {
- case MIXER_READ(SOUND_MIXER_RECMASK):
- case MIXER_READ(SOUND_MIXER_CAPS):
- case MIXER_READ(SOUND_MIXER_RECSRC):
- case MIXER_WRITE(SOUND_MIXER_RECSRC):
- ret = 0;
- break;
-
- case MIXER_READ(SOUND_MIXER_STEREODEVS):
- ret = SOUND_MASK_VOLUME;
- break;
- case MIXER_READ(SOUND_MIXER_DEVMASK):
- ret = SOUND_MASK_VOLUME;
- if (va.flags & VIDEO_AUDIO_BASS)
- ret |= SOUND_MASK_BASS;
- if (va.flags & VIDEO_AUDIO_TREBLE)
- ret |= SOUND_MASK_TREBLE;
- break;
-
- case MIXER_WRITE(SOUND_MIXER_VOLUME):
- left = mix_to_v4l(val);
- right = mix_to_v4l(val >> 8);
- va.volume = max(left,right);
- va.balance = (32768*min(left,right)) / (va.volume ? va.volume : 1);
- va.balance = (left<right) ? (65535-va.balance) : va.balance;
- if (va.volume)
- va.flags &= ~VIDEO_AUDIO_MUTE;
- client->driver->command(client,VIDIOCSAUDIO,&va);
- client->driver->command(client,VIDIOCGAUDIO,&va);
- /* fall throuth */
- case MIXER_READ(SOUND_MIXER_VOLUME):
- left = (min(65536 - va.balance,32768) *
- va.volume) / 32768;
- right = (min(va.balance,(u16)32768) *
- va.volume) / 32768;
- ret = v4l_to_mix2(left,right);
- break;
-
- case MIXER_WRITE(SOUND_MIXER_BASS):
- va.bass = mix_to_v4l(val);
- client->driver->command(client,VIDIOCSAUDIO,&va);
- client->driver->command(client,VIDIOCGAUDIO,&va);
- /* fall throuth */
- case MIXER_READ(SOUND_MIXER_BASS):
- ret = v4l_to_mix(va.bass);
- break;
-
- case MIXER_WRITE(SOUND_MIXER_TREBLE):
- va.treble = mix_to_v4l(val);
- client->driver->command(client,VIDIOCSAUDIO,&va);
- client->driver->command(client,VIDIOCGAUDIO,&va);
- /* fall throuth */
- case MIXER_READ(SOUND_MIXER_TREBLE):
- ret = v4l_to_mix(va.treble);
- break;
-
- default:
- return -EINVAL;
- }
- if (put_user(ret, p))
- return -EFAULT;
- return 0;
-}
-
-static int tvmixer_open(struct inode *inode, struct file *file)
-{
- int i, minor = iminor(inode);
- struct TVMIXER *mix = NULL;
- struct i2c_client *client = NULL;
-
- for (i = 0; i < DEV_MAX; i++) {
- if (devices[i].minor == minor) {
- mix = devices+i;
- client = mix->dev;
- break;
- }
- }
-
- if (NULL == client)
- return -ENODEV;
-
- /* lock bttv in memory while the mixer is in use */
- file->private_data = mix;
- if (client->adapter->owner)
- try_module_get(client->adapter->owner);
- return 0;
-}
-
-static int tvmixer_release(struct inode *inode, struct file *file)
-{
- struct TVMIXER *mix = file->private_data;
- struct i2c_client *client;
-
- client = mix->dev;
- if (NULL == client) {
- return -ENODEV;
- }
-
- module_put(client->adapter->owner);
- return 0;
-}
-
-static struct i2c_driver driver = {
- .driver = {
- .name = "tvmixer",
- },
- .id = I2C_DRIVERID_TVMIXER,
- .detach_adapter = tvmixer_adapters,
- .attach_adapter = tvmixer_adapters,
- .detach_client = tvmixer_clients,
-};
-
-static const struct file_operations tvmixer_fops = {
- .owner = THIS_MODULE,
- .llseek = no_llseek,
- .ioctl = tvmixer_ioctl,
- .open = tvmixer_open,
- .release = tvmixer_release,
-};
-
-/* ----------------------------------------------------------------------- */
-
-static int tvmixer_adapters(struct i2c_adapter *adap)
-{
- struct i2c_client *client;
-
- list_for_each_entry(client, &adap->clients, list)
- tvmixer_clients(client);
- return 0;
-}
-
-static int tvmixer_clients(struct i2c_client *client)
-{
- struct video_audio va;
- int i,minor;
-
- if (!(client->adapter->class & I2C_CLASS_TV_ANALOG))
- return -1;
-
- /* unregister ?? */
- for (i = 0; i < DEV_MAX; i++) {
- if (devices[i].dev == client) {
- /* unregister */
- unregister_sound_mixer(devices[i].minor);
- devices[i].dev = NULL;
- devices[i].minor = -1;
- printk("tvmixer: %s unregistered (#1)\n",
- client->name);
- return 0;
- }
- }
-
- /* look for a free slot */
- for (i = 0; i < DEV_MAX; i++)
- if (NULL == devices[i].dev)
- break;
- if (i == DEV_MAX) {
- printk(KERN_WARNING "tvmixer: DEV_MAX too small\n");
- return -1;
- }
-
- /* audio chip with mixer ??? */
- if (NULL == client->driver->command)
- return -1;
- memset(&va,0,sizeof(va));
- if (0 != client->driver->command(client,VIDIOCGAUDIO,&va))
- return -1;
- if (0 == (va.flags & VIDEO_AUDIO_VOLUME))
- return -1;
-
- /* everything is fine, register */
- if ((minor = register_sound_mixer(&tvmixer_fops,devnr)) < 0) {
- printk(KERN_ERR "tvmixer: cannot allocate mixer device\n");
- return -1;
- }
-
- devices[i].minor = minor;
- devices[i].count = 0;
- devices[i].dev = client;
- printk("tvmixer: %s (%s) registered with minor %d\n",
- client->name,client->adapter->name,minor);
-
- return 0;
-}
-
-/* ----------------------------------------------------------------------- */
-
-static int __init tvmixer_init_module(void)
-{
- int i;
-
- for (i = 0; i < DEV_MAX; i++)
- devices[i].minor = -1;
-
- return i2c_add_driver(&driver);
-}
-
-static void __exit tvmixer_cleanup_module(void)
-{
- int i;
-
- i2c_del_driver(&driver);
- for (i = 0; i < DEV_MAX; i++) {
- if (devices[i].minor != -1) {
- unregister_sound_mixer(devices[i].minor);
- printk("tvmixer: %s unregistered (#2)\n",
- devices[i].dev->name);
- }
- }
-}
-
-module_init(tvmixer_init_module);
-module_exit(tvmixer_cleanup_module);
-
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-basic-offset: 8
- * End:
- */
*
*/
-/* see prep_setup_arch() for detailed informations */
-#if defined(CONFIG_SOUND_CS4232) && defined(CONFIG_PPC_PREP)
-extern long ppc_cs4232_dma, ppc_cs4232_dma2;
-#define SND_DMA1 ppc_cs4232_dma
-#define SND_DMA2 ppc_cs4232_dma2
-#else
-#define SND_DMA1 -1
-#define SND_DMA2 -1
-#endif
-
/* 8237 DMA controllers */
#define IO_DMA1_BASE 0x00 /* 8 bit slave DMA, channels 0..3 */
#define IO_DMA2_BASE 0xC0 /* 16 bit master DMA, ch 4(=slave input)..7 */
dma_outb(pagenr >> 8, DMA_HI_PAGE_3);
break;
case 5:
- if (SND_DMA1 == 5 || SND_DMA2 == 5)
- dma_outb(pagenr, DMA_LO_PAGE_5);
- else
- dma_outb(pagenr & 0xfe, DMA_LO_PAGE_5);
+ dma_outb(pagenr & 0xfe, DMA_LO_PAGE_5);
dma_outb(pagenr >> 8, DMA_HI_PAGE_5);
break;
case 6:
- if (SND_DMA1 == 6 || SND_DMA2 == 6)
- dma_outb(pagenr, DMA_LO_PAGE_6);
- else
- dma_outb(pagenr & 0xfe, DMA_LO_PAGE_6);
+ dma_outb(pagenr & 0xfe, DMA_LO_PAGE_6);
dma_outb(pagenr >> 8, DMA_HI_PAGE_6);
break;
case 7:
- if (SND_DMA1 == 7 || SND_DMA2 == 7)
- dma_outb(pagenr, DMA_LO_PAGE_7);
- else
- dma_outb(pagenr & 0xfe, DMA_LO_PAGE_7);
+ dma_outb(pagenr & 0xfe, DMA_LO_PAGE_7);
dma_outb(pagenr >> 8, DMA_HI_PAGE_7);
break;
}
((dmanr & 3) << 1) + IO_DMA1_BASE);
dma_outb((phys >> 8) & 0xff,
((dmanr & 3) << 1) + IO_DMA1_BASE);
- } else if (dmanr == SND_DMA1 || dmanr == SND_DMA2) {
- dma_outb(phys & 0xff,
- ((dmanr & 3) << 2) + IO_DMA2_BASE);
- dma_outb((phys >> 8) & 0xff,
- ((dmanr & 3) << 2) + IO_DMA2_BASE);
- dma_outb((dmanr & 3), DMA2_EXT_REG);
} else {
dma_outb((phys >> 1) & 0xff,
((dmanr & 3) << 2) + IO_DMA2_BASE);
((dmanr & 3) << 1) + 1 + IO_DMA1_BASE);
dma_outb((count >> 8) & 0xff,
((dmanr & 3) << 1) + 1 + IO_DMA1_BASE);
- } else if (dmanr == SND_DMA1 || dmanr == SND_DMA2) {
- dma_outb(count & 0xff,
- ((dmanr & 3) << 2) + 2 + IO_DMA2_BASE);
- dma_outb((count >> 8) & 0xff,
- ((dmanr & 3) << 2) + 2 + IO_DMA2_BASE);
} else {
dma_outb((count >> 1) & 0xff,
((dmanr & 3) << 2) + 2 + IO_DMA2_BASE);
count = 1 + dma_inb(io_port);
count += dma_inb(io_port) << 8;
- return (dmanr <= 3 || dmanr == SND_DMA1 || dmanr == SND_DMA2)
- ? count : (count << 1);
+ return (dmanr <= 3) ? count : (count << 1);
}
/* These are in kernel/dma.c: */
#define AC97_DEFAULT_POWER_OFF 4 /* Needs warm reset to power up */
};
-extern int ac97_read_proc (char *page_out, char **start, off_t off,
- int count, int *eof, void *data);
extern int ac97_probe_codec(struct ac97_codec *);
-extern unsigned int ac97_set_adc_rate(struct ac97_codec *codec, unsigned int rate);
-extern unsigned int ac97_set_dac_rate(struct ac97_codec *codec, unsigned int rate);
extern struct ac97_codec *ac97_alloc_codec(void);
extern void ac97_release_codec(struct ac97_codec *codec);
int type; /* quirk type above */
};
-struct pci_dev;
-extern int ac97_tune_hardware(struct pci_dev *pdev, struct ac97_quirk *quirk, int override);
-
#endif /* _AC97_CODEC_H_ */
# Each configuration option enables a list of files.
obj-$(CONFIG_SOUND_OSS) += sound.o
-obj-$(CONFIG_SOUND_CS4232) += cs4232.o ad1848.o
# Please leave it as is, cause the link order is significant !
obj-$(CONFIG_SOUND_PSS) += pss.o ad1848.o mpu401.o
obj-$(CONFIG_SOUND_TRIX) += trix.o ad1848.o sb_lib.o uart401.o
obj-$(CONFIG_SOUND_SSCAPE) += sscape.o ad1848.o mpu401.o
-obj-$(CONFIG_SOUND_CS4232) += cs4232.o uart401.o
obj-$(CONFIG_SOUND_MSS) += ad1848.o
obj-$(CONFIG_SOUND_PAS) += pas2.o sb.o sb_lib.o uart401.o
obj-$(CONFIG_SOUND_SB) += sb.o sb_lib.o uart401.o
obj-$(CONFIG_SOUND_VMIDI) += v_midi.o
obj-$(CONFIG_SOUND_VIDC) += vidc_mod.o
obj-$(CONFIG_SOUND_WAVEARTIST) += waveartist.o
-
-obj-$(CONFIG_SOUND_VIA82CXXX) += via82cxxx_audio.o ac97_codec.o
-ifeq ($(CONFIG_MIDI_VIA82CXXX),y)
- obj-$(CONFIG_SOUND_VIA82CXXX) += sound.o uart401.o
-endif
obj-$(CONFIG_SOUND_MSNDCLAS) += msnd.o msnd_classic.o
obj-$(CONFIG_SOUND_MSNDPIN) += msnd.o msnd_pinnacle.o
obj-$(CONFIG_SOUND_VWSND) += vwsnd.o
-obj-$(CONFIG_SOUND_ICH) += i810_audio.o ac97_codec.o
obj-$(CONFIG_SOUND_AU1550_AC97) += au1550_ac97.o ac97_codec.o
obj-$(CONFIG_SOUND_TRIDENT) += trident.o ac97_codec.o
obj-$(CONFIG_SOUND_BCM_CS4297A) += swarm_cs4297a.o
-obj-$(CONFIG_SOUND_BT878) += btaudio.o
obj-$(CONFIG_SOUND_WM97XX) += ac97_plugin_wm97xx.o
{0x57454301, "Winbond 83971D", &null_ops},
};
-static const char *ac97_stereo_enhancements[] =
-{
- /* 0 */ "No 3D Stereo Enhancement",
- /* 1 */ "Analog Devices Phat Stereo",
- /* 2 */ "Creative Stereo Enhancement",
- /* 3 */ "National Semi 3D Stereo Enhancement",
- /* 4 */ "YAMAHA Ymersion",
- /* 5 */ "BBE 3D Stereo Enhancement",
- /* 6 */ "Crystal Semi 3D Stereo Enhancement",
- /* 7 */ "Qsound QXpander",
- /* 8 */ "Spatializer 3D Stereo Enhancement",
- /* 9 */ "SRS 3D Stereo Enhancement",
- /* 10 */ "Platform Tech 3D Stereo Enhancement",
- /* 11 */ "AKM 3D Audio",
- /* 12 */ "Aureal Stereo Enhancement",
- /* 13 */ "Aztech 3D Enhancement",
- /* 14 */ "Binaura 3D Audio Enhancement",
- /* 15 */ "ESS Technology Stereo Enhancement",
- /* 16 */ "Harman International VMAx",
- /* 17 */ "Nvidea 3D Stereo Enhancement",
- /* 18 */ "Philips Incredible Sound",
- /* 19 */ "Texas Instruments 3D Stereo Enhancement",
- /* 20 */ "VLSI Technology 3D Stereo Enhancement",
- /* 21 */ "TriTech 3D Stereo Enhancement",
- /* 22 */ "Realtek 3D Stereo Enhancement",
- /* 23 */ "Samsung 3D Stereo Enhancement",
- /* 24 */ "Wolfson Microelectronics 3D Enhancement",
- /* 25 */ "Delta Integration 3D Enhancement",
- /* 26 */ "SigmaTel 3D Enhancement",
- /* 27 */ "Winbond 3D Stereo Enhancement",
- /* 28 */ "Rockwell 3D Stereo Enhancement",
- /* 29 */ "Reserved 29",
- /* 30 */ "Reserved 30",
- /* 31 */ "Reserved 31"
-};
-
/* this table has default mixer values for all OSS mixers. */
static struct mixer_defaults {
int mixer;
return -EINVAL;
}
-/* entry point for /proc/driver/controller_vendor/ac97/%d */
-int ac97_read_proc (char *page, char **start, off_t off,
- int count, int *eof, void *data)
-{
- int len = 0, cap, extid, val, id1, id2;
- struct ac97_codec *codec;
- int is_ac97_20 = 0;
-
- if ((codec = data) == NULL)
- return -ENODEV;
-
- id1 = codec->codec_read(codec, AC97_VENDOR_ID1);
- id2 = codec->codec_read(codec, AC97_VENDOR_ID2);
- len += sprintf (page+len, "Vendor name : %s\n", codec->name);
- len += sprintf (page+len, "Vendor id : %04X %04X\n", id1, id2);
-
- extid = codec->codec_read(codec, AC97_EXTENDED_ID);
- extid &= ~((1<<2)|(1<<4)|(1<<5)|(1<<10)|(1<<11)|(1<<12)|(1<<13));
- len += sprintf (page+len, "AC97 Version : %s\n",
- extid ? "2.0 or later" : "1.0");
- if (extid) is_ac97_20 = 1;
-
- cap = codec->codec_read(codec, AC97_RESET);
- len += sprintf (page+len, "Capabilities :%s%s%s%s%s%s\n",
- cap & 0x0001 ? " -dedicated MIC PCM IN channel-" : "",
- cap & 0x0002 ? " -reserved1-" : "",
- cap & 0x0004 ? " -bass & treble-" : "",
- cap & 0x0008 ? " -simulated stereo-" : "",
- cap & 0x0010 ? " -headphone out-" : "",
- cap & 0x0020 ? " -loudness-" : "");
- val = cap & 0x00c0;
- len += sprintf (page+len, "DAC resolutions :%s%s%s\n",
- " -16-bit-",
- val & 0x0040 ? " -18-bit-" : "",
- val & 0x0080 ? " -20-bit-" : "");
- val = cap & 0x0300;
- len += sprintf (page+len, "ADC resolutions :%s%s%s\n",
- " -16-bit-",
- val & 0x0100 ? " -18-bit-" : "",
- val & 0x0200 ? " -20-bit-" : "");
- len += sprintf (page+len, "3D enhancement : %s\n",
- ac97_stereo_enhancements[(cap >> 10) & 0x1f]);
-
- val = codec->codec_read(codec, AC97_GENERAL_PURPOSE);
- len += sprintf (page+len, "POP path : %s 3D\n"
- "Sim. stereo : %s\n"
- "3D enhancement : %s\n"
- "Loudness : %s\n"
- "Mono output : %s\n"
- "MIC select : %s\n"
- "ADC/DAC loopback : %s\n",
- val & 0x8000 ? "post" : "pre",
- val & 0x4000 ? "on" : "off",
- val & 0x2000 ? "on" : "off",
- val & 0x1000 ? "on" : "off",
- val & 0x0200 ? "MIC" : "MIX",
- val & 0x0100 ? "MIC2" : "MIC1",
- val & 0x0080 ? "on" : "off");
-
- extid = codec->codec_read(codec, AC97_EXTENDED_ID);
- cap = extid;
- len += sprintf (page+len, "Ext Capabilities :%s%s%s%s%s%s%s\n",
- cap & 0x0001 ? " -var rate PCM audio-" : "",
- cap & 0x0002 ? " -2x PCM audio out-" : "",
- cap & 0x0008 ? " -var rate MIC in-" : "",
- cap & 0x0040 ? " -PCM center DAC-" : "",
- cap & 0x0080 ? " -PCM surround DAC-" : "",
- cap & 0x0100 ? " -PCM LFE DAC-" : "",
- cap & 0x0200 ? " -slot/DAC mappings-" : "");
- if (is_ac97_20) {
- len += sprintf (page+len, "Front DAC rate : %d\n",
- codec->codec_read(codec, AC97_PCM_FRONT_DAC_RATE));
- }
-
- return len;
-}
-
/**
* codec_id - Turn id1/id2 into a PnP string
* @id1: Vendor ID1
#endif
-EXPORT_SYMBOL(ac97_read_proc);
EXPORT_SYMBOL(ac97_probe_codec);
-/*
- * AC97 library support routines
- */
-
-/**
- * ac97_set_dac_rate - set codec rate adaption
- * @codec: ac97 code
- * @rate: rate in hertz
- *
- * Set the DAC rate. Assumes the codec supports VRA. The caller is
- * expected to have checked this little detail.
- */
-
-unsigned int ac97_set_dac_rate(struct ac97_codec *codec, unsigned int rate)
-{
- unsigned int new_rate = rate;
- u32 dacp;
- u32 mast_vol, phone_vol, mono_vol, pcm_vol;
- u32 mute_vol = 0x8000; /* The mute volume? */
-
- if(rate != codec->codec_read(codec, AC97_PCM_FRONT_DAC_RATE))
- {
- /* Mute several registers */
- mast_vol = codec->codec_read(codec, AC97_MASTER_VOL_STEREO);
- mono_vol = codec->codec_read(codec, AC97_MASTER_VOL_MONO);
- phone_vol = codec->codec_read(codec, AC97_HEADPHONE_VOL);
- pcm_vol = codec->codec_read(codec, AC97_PCMOUT_VOL);
- codec->codec_write(codec, AC97_MASTER_VOL_STEREO, mute_vol);
- codec->codec_write(codec, AC97_MASTER_VOL_MONO, mute_vol);
- codec->codec_write(codec, AC97_HEADPHONE_VOL, mute_vol);
- codec->codec_write(codec, AC97_PCMOUT_VOL, mute_vol);
-
- /* Power down the DAC */
- dacp=codec->codec_read(codec, AC97_POWER_CONTROL);
- codec->codec_write(codec, AC97_POWER_CONTROL, dacp|0x0200);
- /* Load the rate and read the effective rate */
- codec->codec_write(codec, AC97_PCM_FRONT_DAC_RATE, rate);
- new_rate=codec->codec_read(codec, AC97_PCM_FRONT_DAC_RATE);
- /* Power it back up */
- codec->codec_write(codec, AC97_POWER_CONTROL, dacp);
-
- /* Restore volumes */
- codec->codec_write(codec, AC97_MASTER_VOL_STEREO, mast_vol);
- codec->codec_write(codec, AC97_MASTER_VOL_MONO, mono_vol);
- codec->codec_write(codec, AC97_HEADPHONE_VOL, phone_vol);
- codec->codec_write(codec, AC97_PCMOUT_VOL, pcm_vol);
- }
- return new_rate;
-}
-
-EXPORT_SYMBOL(ac97_set_dac_rate);
-
-/**
- * ac97_set_adc_rate - set codec rate adaption
- * @codec: ac97 code
- * @rate: rate in hertz
- *
- * Set the ADC rate. Assumes the codec supports VRA. The caller is
- * expected to have checked this little detail.
- */
-
-unsigned int ac97_set_adc_rate(struct ac97_codec *codec, unsigned int rate)
-{
- unsigned int new_rate = rate;
- u32 dacp;
-
- if(rate != codec->codec_read(codec, AC97_PCM_LR_ADC_RATE))
- {
- /* Power down the ADC */
- dacp=codec->codec_read(codec, AC97_POWER_CONTROL);
- codec->codec_write(codec, AC97_POWER_CONTROL, dacp|0x0100);
- /* Load the rate and read the effective rate */
- codec->codec_write(codec, AC97_PCM_LR_ADC_RATE, rate);
- new_rate=codec->codec_read(codec, AC97_PCM_LR_ADC_RATE);
- /* Power it back up */
- codec->codec_write(codec, AC97_POWER_CONTROL, dacp);
- }
- return new_rate;
-}
-
-EXPORT_SYMBOL(ac97_set_adc_rate);
-
-static int swap_headphone(int remove_master)
-{
- struct list_head *l;
- struct ac97_codec *c;
-
- if (remove_master) {
- mutex_lock(&codec_mutex);
- list_for_each(l, &codecs)
- {
- c = list_entry(l, struct ac97_codec, list);
- if (supported_mixer(c, SOUND_MIXER_PHONEOUT))
- c->supported_mixers &= ~SOUND_MASK_PHONEOUT;
- }
- mutex_unlock(&codec_mutex);
- } else
- ac97_hw[SOUND_MIXER_PHONEOUT].offset = AC97_MASTER_VOL_STEREO;
-
- /* Scale values already match */
- ac97_hw[SOUND_MIXER_VOLUME].offset = AC97_MASTER_VOL_MONO;
- return 0;
-}
-
-static int apply_quirk(int quirk)
-{
- switch (quirk) {
- case AC97_TUNE_NONE:
- return 0;
- case AC97_TUNE_HP_ONLY:
- return swap_headphone(1);
- case AC97_TUNE_SWAP_HP:
- return swap_headphone(0);
- case AC97_TUNE_SWAP_SURROUND:
- return -ENOSYS; /* not yet implemented */
- case AC97_TUNE_AD_SHARING:
- return -ENOSYS; /* not yet implemented */
- case AC97_TUNE_ALC_JACK:
- return -ENOSYS; /* not yet implemented */
- }
- return -EINVAL;
-}
-
-/**
- * ac97_tune_hardware - tune up the hardware
- * @pdev: pci_dev pointer
- * @quirk: quirk list
- * @override: explicit quirk value (overrides if not AC97_TUNE_DEFAULT)
- *
- * Do some workaround for each pci device, such as renaming of the
- * headphone (true line-out) control as "Master".
- * The quirk-list must be terminated with a zero-filled entry.
- *
- * Returns zero if successful, or a negative error code on failure.
- */
-
-int ac97_tune_hardware(struct pci_dev *pdev, struct ac97_quirk *quirk, int override)
-{
- int result;
-
- if (!quirk)
- return -EINVAL;
-
- if (override != AC97_TUNE_DEFAULT) {
- result = apply_quirk(override);
- if (result < 0)
- printk(KERN_ERR "applying quirk type %d failed (%d)\n", override, result);
- return result;
- }
-
- for (; quirk->vendor; quirk++) {
- if (quirk->vendor != pdev->subsystem_vendor)
- continue;
- if ((! quirk->mask && quirk->device == pdev->subsystem_device) ||
- quirk->device == (quirk->mask & pdev->subsystem_device)) {
-#ifdef DEBUG
- printk("ac97 quirk for %s (%04x:%04x)\n", quirk->name, ac97->subsystem_vendor, pdev->subsystem_device);
-#endif
- result = apply_quirk(quirk->type);
- if (result < 0)
- printk(KERN_ERR "applying quirk type %d for %s failed (%d)\n", quirk->type, quirk->name, result);
- return result;
- }
- }
- return 0;
-}
-
-EXPORT_SYMBOL_GPL(ac97_tune_hardware);
-
-MODULE_LICENSE("GPL");
+++ /dev/null
-/*
- btaudio - bt878 audio dma driver for linux 2.4.x
-
- (c) 2000-2002 Gerd Knorr <kraxel@bytesex.org>
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
-*/
-
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/pci.h>
-#include <linux/sched.h>
-#include <linux/signal.h>
-#include <linux/types.h>
-#include <linux/interrupt.h>
-#include <linux/init.h>
-#include <linux/poll.h>
-#include <linux/sound.h>
-#include <linux/soundcard.h>
-#include <linux/slab.h>
-#include <linux/kdev_t.h>
-#include <linux/mutex.h>
-
-#include <asm/uaccess.h>
-#include <asm/io.h>
-
-
-/* mmio access */
-#define btwrite(dat,adr) writel((dat), (bta->mmio+(adr)))
-#define btread(adr) readl(bta->mmio+(adr))
-
-#define btand(dat,adr) btwrite((dat) & btread(adr), adr)
-#define btor(dat,adr) btwrite((dat) | btread(adr), adr)
-#define btaor(dat,mask,adr) btwrite((dat) | ((mask) & btread(adr)), adr)
-
-/* registers (shifted because bta->mmio is long) */
-#define REG_INT_STAT (0x100 >> 2)
-#define REG_INT_MASK (0x104 >> 2)
-#define REG_GPIO_DMA_CTL (0x10c >> 2)
-#define REG_PACKET_LEN (0x110 >> 2)
-#define REG_RISC_STRT_ADD (0x114 >> 2)
-#define REG_RISC_COUNT (0x120 >> 2)
-
-/* IRQ bits - REG_INT_(STAT|MASK) */
-#define IRQ_SCERR (1 << 19)
-#define IRQ_OCERR (1 << 18)
-#define IRQ_PABORT (1 << 17)
-#define IRQ_RIPERR (1 << 16)
-#define IRQ_PPERR (1 << 15)
-#define IRQ_FDSR (1 << 14)
-#define IRQ_FTRGT (1 << 13)
-#define IRQ_FBUS (1 << 12)
-#define IRQ_RISCI (1 << 11)
-#define IRQ_OFLOW (1 << 3)
-
-#define IRQ_BTAUDIO (IRQ_SCERR | IRQ_OCERR | IRQ_PABORT | IRQ_RIPERR |\
- IRQ_PPERR | IRQ_FDSR | IRQ_FTRGT | IRQ_FBUS |\
- IRQ_RISCI)
-
-/* REG_GPIO_DMA_CTL bits */
-#define DMA_CTL_A_PWRDN (1 << 26)
-#define DMA_CTL_DA_SBR (1 << 14)
-#define DMA_CTL_DA_ES2 (1 << 13)
-#define DMA_CTL_ACAP_EN (1 << 4)
-#define DMA_CTL_RISC_EN (1 << 1)
-#define DMA_CTL_FIFO_EN (1 << 0)
-
-/* RISC instructions */
-#define RISC_WRITE (0x01 << 28)
-#define RISC_JUMP (0x07 << 28)
-#define RISC_SYNC (0x08 << 28)
-
-/* RISC bits */
-#define RISC_WR_SOL (1 << 27)
-#define RISC_WR_EOL (1 << 26)
-#define RISC_IRQ (1 << 24)
-#define RISC_SYNC_RESYNC (1 << 15)
-#define RISC_SYNC_FM1 0x06
-#define RISC_SYNC_VRO 0x0c
-
-#define HWBASE_AD (448000)
-
-/* -------------------------------------------------------------- */
-
-struct btaudio {
- /* linked list */
- struct btaudio *next;
-
- /* device info */
- int dsp_digital;
- int dsp_analog;
- int mixer_dev;
- struct pci_dev *pci;
- unsigned int irq;
- unsigned long mem;
- unsigned long __iomem *mmio;
-
- /* locking */
- int users;
- struct mutex lock;
-
- /* risc instructions */
- unsigned int risc_size;
- unsigned long *risc_cpu;
- dma_addr_t risc_dma;
-
- /* audio data */
- unsigned int buf_size;
- unsigned char *buf_cpu;
- dma_addr_t buf_dma;
-
- /* buffer setup */
- int line_bytes;
- int line_count;
- int block_bytes;
- int block_count;
-
- /* read fifo management */
- int recording;
- int dma_block;
- int read_offset;
- int read_count;
- wait_queue_head_t readq;
-
- /* settings */
- int gain[3];
- int source;
- int bits;
- int decimation;
- int mixcount;
- int sampleshift;
- int channels;
- int analog;
- int rate;
-};
-
-struct cardinfo {
- char *name;
- int rate;
-};
-
-static struct btaudio *btaudios;
-static unsigned int debug;
-static unsigned int irq_debug;
-
-/* -------------------------------------------------------------- */
-
-#define BUF_DEFAULT 128*1024
-#define BUF_MIN 8192
-
-static int alloc_buffer(struct btaudio *bta)
-{
- if (NULL == bta->buf_cpu) {
- for (bta->buf_size = BUF_DEFAULT; bta->buf_size >= BUF_MIN;
- bta->buf_size = bta->buf_size >> 1) {
- bta->buf_cpu = pci_alloc_consistent
- (bta->pci, bta->buf_size, &bta->buf_dma);
- if (NULL != bta->buf_cpu)
- break;
- }
- if (NULL == bta->buf_cpu)
- return -ENOMEM;
- memset(bta->buf_cpu,0,bta->buf_size);
- }
- if (NULL == bta->risc_cpu) {
- bta->risc_size = PAGE_SIZE;
- bta->risc_cpu = pci_alloc_consistent
- (bta->pci, bta->risc_size, &bta->risc_dma);
- if (NULL == bta->risc_cpu) {
- pci_free_consistent(bta->pci, bta->buf_size, bta->buf_cpu, bta->buf_dma);
- bta->buf_cpu = NULL;
- return -ENOMEM;
- }
- }
- return 0;
-}
-
-static void free_buffer(struct btaudio *bta)
-{
- if (NULL != bta->buf_cpu) {
- pci_free_consistent(bta->pci, bta->buf_size,
- bta->buf_cpu, bta->buf_dma);
- bta->buf_cpu = NULL;
- }
- if (NULL != bta->risc_cpu) {
- pci_free_consistent(bta->pci, bta->risc_size,
- bta->risc_cpu, bta->risc_dma);
- bta->risc_cpu = NULL;
- }
-}
-
-static int make_risc(struct btaudio *bta)
-{
- int rp, bp, line, block;
- unsigned long risc;
-
- bta->block_bytes = bta->buf_size >> 4;
- bta->block_count = 1 << 4;
- bta->line_bytes = bta->block_bytes;
- bta->line_count = bta->block_count;
- while (bta->line_bytes > 4095) {
- bta->line_bytes >>= 1;
- bta->line_count <<= 1;
- }
- if (bta->line_count > 255)
- return -EINVAL;
- if (debug)
- printk(KERN_DEBUG
- "btaudio: bufsize=%d - bs=%d bc=%d - ls=%d, lc=%d\n",
- bta->buf_size,bta->block_bytes,bta->block_count,
- bta->line_bytes,bta->line_count);
- rp = 0; bp = 0;
- block = 0;
- bta->risc_cpu[rp++] = cpu_to_le32(RISC_SYNC|RISC_SYNC_FM1);
- bta->risc_cpu[rp++] = cpu_to_le32(0);
- for (line = 0; line < bta->line_count; line++) {
- risc = RISC_WRITE | RISC_WR_SOL | RISC_WR_EOL;
- risc |= bta->line_bytes;
- if (0 == (bp & (bta->block_bytes-1))) {
- risc |= RISC_IRQ;
- risc |= (block & 0x0f) << 16;
- risc |= (~block & 0x0f) << 20;
- block++;
- }
- bta->risc_cpu[rp++] = cpu_to_le32(risc);
- bta->risc_cpu[rp++] = cpu_to_le32(bta->buf_dma + bp);
- bp += bta->line_bytes;
- }
- bta->risc_cpu[rp++] = cpu_to_le32(RISC_SYNC|RISC_SYNC_VRO);
- bta->risc_cpu[rp++] = cpu_to_le32(0);
- bta->risc_cpu[rp++] = cpu_to_le32(RISC_JUMP);
- bta->risc_cpu[rp++] = cpu_to_le32(bta->risc_dma);
- return 0;
-}
-
-static int start_recording(struct btaudio *bta)
-{
- int ret;
-
- if (0 != (ret = alloc_buffer(bta)))
- return ret;
- if (0 != (ret = make_risc(bta)))
- return ret;
-
- btwrite(bta->risc_dma, REG_RISC_STRT_ADD);
- btwrite((bta->line_count << 16) | bta->line_bytes,
- REG_PACKET_LEN);
- btwrite(IRQ_BTAUDIO, REG_INT_MASK);
- if (bta->analog) {
- btwrite(DMA_CTL_ACAP_EN |
- DMA_CTL_RISC_EN |
- DMA_CTL_FIFO_EN |
- DMA_CTL_DA_ES2 |
- ((bta->bits == 8) ? DMA_CTL_DA_SBR : 0) |
- (bta->gain[bta->source] << 28) |
- (bta->source << 24) |
- (bta->decimation << 8),
- REG_GPIO_DMA_CTL);
- } else {
- btwrite(DMA_CTL_ACAP_EN |
- DMA_CTL_RISC_EN |
- DMA_CTL_FIFO_EN |
- DMA_CTL_DA_ES2 |
- DMA_CTL_A_PWRDN |
- (1 << 6) |
- ((bta->bits == 8) ? DMA_CTL_DA_SBR : 0) |
- (bta->gain[bta->source] << 28) |
- (bta->source << 24) |
- (bta->decimation << 8),
- REG_GPIO_DMA_CTL);
- }
- bta->dma_block = 0;
- bta->read_offset = 0;
- bta->read_count = 0;
- bta->recording = 1;
- if (debug)
- printk(KERN_DEBUG "btaudio: recording started\n");
- return 0;
-}
-
-static void stop_recording(struct btaudio *bta)
-{
- btand(~15, REG_GPIO_DMA_CTL);
- bta->recording = 0;
- if (debug)
- printk(KERN_DEBUG "btaudio: recording stopped\n");
-}
-
-
-/* -------------------------------------------------------------- */
-
-static int btaudio_mixer_open(struct inode *inode, struct file *file)
-{
- int minor = iminor(inode);
- struct btaudio *bta;
-
- for (bta = btaudios; bta != NULL; bta = bta->next)
- if (bta->mixer_dev == minor)
- break;
- if (NULL == bta)
- return -ENODEV;
-
- if (debug)
- printk("btaudio: open mixer [%d]\n",minor);
- file->private_data = bta;
- return 0;
-}
-
-static int btaudio_mixer_release(struct inode *inode, struct file *file)
-{
- return 0;
-}
-
-static int btaudio_mixer_ioctl(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg)
-{
- struct btaudio *bta = file->private_data;
- int ret,val=0,i=0;
- void __user *argp = (void __user *)arg;
-
- if (cmd == SOUND_MIXER_INFO) {
- mixer_info info;
- memset(&info,0,sizeof(info));
- strlcpy(info.id,"bt878",sizeof(info.id));
- strlcpy(info.name,"Brooktree Bt878 audio",sizeof(info.name));
- info.modify_counter = bta->mixcount;
- if (copy_to_user(argp, &info, sizeof(info)))
- return -EFAULT;
- return 0;
- }
- if (cmd == SOUND_OLD_MIXER_INFO) {
- _old_mixer_info info;
- memset(&info,0,sizeof(info));
- strlcpy(info.id, "bt878", sizeof(info.id));
- strlcpy(info.name,"Brooktree Bt878 audio",sizeof(info.name));
- if (copy_to_user(argp, &info, sizeof(info)))
- return -EFAULT;
- return 0;
- }
- if (cmd == OSS_GETVERSION)
- return put_user(SOUND_VERSION, (int __user *)argp);
-
- /* read */
- if (_SIOC_DIR(cmd) & _SIOC_WRITE)
- if (get_user(val, (int __user *)argp))
- return -EFAULT;
-
- switch (cmd) {
- case MIXER_READ(SOUND_MIXER_CAPS):
- ret = SOUND_CAP_EXCL_INPUT;
- break;
- case MIXER_READ(SOUND_MIXER_STEREODEVS):
- ret = 0;
- break;
- case MIXER_READ(SOUND_MIXER_RECMASK):
- case MIXER_READ(SOUND_MIXER_DEVMASK):
- ret = SOUND_MASK_LINE1|SOUND_MASK_LINE2|SOUND_MASK_LINE3;
- break;
-
- case MIXER_WRITE(SOUND_MIXER_RECSRC):
- if (val & SOUND_MASK_LINE1 && bta->source != 0)
- bta->source = 0;
- else if (val & SOUND_MASK_LINE2 && bta->source != 1)
- bta->source = 1;
- else if (val & SOUND_MASK_LINE3 && bta->source != 2)
- bta->source = 2;
- btaor((bta->gain[bta->source] << 28) |
- (bta->source << 24),
- 0x0cffffff, REG_GPIO_DMA_CTL);
- case MIXER_READ(SOUND_MIXER_RECSRC):
- switch (bta->source) {
- case 0: ret = SOUND_MASK_LINE1; break;
- case 1: ret = SOUND_MASK_LINE2; break;
- case 2: ret = SOUND_MASK_LINE3; break;
- default: ret = 0;
- }
- break;
-
- case MIXER_WRITE(SOUND_MIXER_LINE1):
- case MIXER_WRITE(SOUND_MIXER_LINE2):
- case MIXER_WRITE(SOUND_MIXER_LINE3):
- if (MIXER_WRITE(SOUND_MIXER_LINE1) == cmd)
- i = 0;
- if (MIXER_WRITE(SOUND_MIXER_LINE2) == cmd)
- i = 1;
- if (MIXER_WRITE(SOUND_MIXER_LINE3) == cmd)
- i = 2;
- bta->gain[i] = (val & 0xff) * 15 / 100;
- if (bta->gain[i] > 15) bta->gain[i] = 15;
- if (bta->gain[i] < 0) bta->gain[i] = 0;
- if (i == bta->source)
- btaor((bta->gain[bta->source]<<28),
- 0x0fffffff, REG_GPIO_DMA_CTL);
- ret = bta->gain[i] * 100 / 15;
- ret |= ret << 8;
- break;
-
- case MIXER_READ(SOUND_MIXER_LINE1):
- case MIXER_READ(SOUND_MIXER_LINE2):
- case MIXER_READ(SOUND_MIXER_LINE3):
- if (MIXER_READ(SOUND_MIXER_LINE1) == cmd)
- i = 0;
- if (MIXER_READ(SOUND_MIXER_LINE2) == cmd)
- i = 1;
- if (MIXER_READ(SOUND_MIXER_LINE3) == cmd)
- i = 2;
- ret = bta->gain[i] * 100 / 15;
- ret |= ret << 8;
- break;
-
- default:
- return -EINVAL;
- }
- if (put_user(ret, (int __user *)argp))
- return -EFAULT;
- return 0;
-}
-
-static const struct file_operations btaudio_mixer_fops = {
- .owner = THIS_MODULE,
- .llseek = no_llseek,
- .open = btaudio_mixer_open,
- .release = btaudio_mixer_release,
- .ioctl = btaudio_mixer_ioctl,
-};
-
-/* -------------------------------------------------------------- */
-
-static int btaudio_dsp_open(struct inode *inode, struct file *file,
- struct btaudio *bta, int analog)
-{
- mutex_lock(&bta->lock);
- if (bta->users)
- goto busy;
- bta->users++;
- file->private_data = bta;
-
- bta->analog = analog;
- bta->dma_block = 0;
- bta->read_offset = 0;
- bta->read_count = 0;
- bta->sampleshift = 0;
-
- mutex_unlock(&bta->lock);
- return 0;
-
- busy:
- mutex_unlock(&bta->lock);
- return -EBUSY;
-}
-
-static int btaudio_dsp_open_digital(struct inode *inode, struct file *file)
-{
- int minor = iminor(inode);
- struct btaudio *bta;
-
- for (bta = btaudios; bta != NULL; bta = bta->next)
- if (bta->dsp_digital == minor)
- break;
- if (NULL == bta)
- return -ENODEV;
-
- if (debug)
- printk("btaudio: open digital dsp [%d]\n",minor);
- return btaudio_dsp_open(inode,file,bta,0);
-}
-
-static int btaudio_dsp_open_analog(struct inode *inode, struct file *file)
-{
- int minor = iminor(inode);
- struct btaudio *bta;
-
- for (bta = btaudios; bta != NULL; bta = bta->next)
- if (bta->dsp_analog == minor)
- break;
- if (NULL == bta)
- return -ENODEV;
-
- if (debug)
- printk("btaudio: open analog dsp [%d]\n",minor);
- return btaudio_dsp_open(inode,file,bta,1);
-}
-
-static int btaudio_dsp_release(struct inode *inode, struct file *file)
-{
- struct btaudio *bta = file->private_data;
-
- mutex_lock(&bta->lock);
- if (bta->recording)
- stop_recording(bta);
- bta->users--;
- mutex_unlock(&bta->lock);
- return 0;
-}
-
-static ssize_t btaudio_dsp_read(struct file *file, char __user *buffer,
- size_t swcount, loff_t *ppos)
-{
- struct btaudio *bta = file->private_data;
- int hwcount = swcount << bta->sampleshift;
- int nsrc, ndst, err, ret = 0;
- DECLARE_WAITQUEUE(wait, current);
-
- add_wait_queue(&bta->readq, &wait);
- mutex_lock(&bta->lock);
- while (swcount > 0) {
- if (0 == bta->read_count) {
- if (!bta->recording) {
- if (0 != (err = start_recording(bta))) {
- if (0 == ret)
- ret = err;
- break;
- }
- }
- if (file->f_flags & O_NONBLOCK) {
- if (0 == ret)
- ret = -EAGAIN;
- break;
- }
- mutex_unlock(&bta->lock);
- current->state = TASK_INTERRUPTIBLE;
- schedule();
- mutex_lock(&bta->lock);
- if(signal_pending(current)) {
- if (0 == ret)
- ret = -EINTR;
- break;
- }
- }
- nsrc = (bta->read_count < hwcount) ? bta->read_count : hwcount;
- if (nsrc > bta->buf_size - bta->read_offset)
- nsrc = bta->buf_size - bta->read_offset;
- ndst = nsrc >> bta->sampleshift;
-
- if ((bta->analog && 0 == bta->sampleshift) ||
- (!bta->analog && 2 == bta->channels)) {
- /* just copy */
- if (copy_to_user(buffer + ret, bta->buf_cpu + bta->read_offset, nsrc)) {
- if (0 == ret)
- ret = -EFAULT;
- break;
- }
-
- } else if (!bta->analog) {
- /* stereo => mono (digital audio) */
- __s16 *src = (__s16*)(bta->buf_cpu + bta->read_offset);
- __s16 __user *dst = (__s16 __user *)(buffer + ret);
- __s16 avg;
- int n = ndst>>1;
- if (!access_ok(VERIFY_WRITE, dst, ndst)) {
- if (0 == ret)
- ret = -EFAULT;
- break;
- }
- for (; n; n--, dst++) {
- avg = (__s16)le16_to_cpu(*src) / 2; src++;
- avg += (__s16)le16_to_cpu(*src) / 2; src++;
- __put_user(cpu_to_le16(avg),dst);
- }
-
- } else if (8 == bta->bits) {
- /* copy + byte downsampling (audio A/D) */
- __u8 *src = bta->buf_cpu + bta->read_offset;
- __u8 __user *dst = buffer + ret;
- int n = ndst;
- if (!access_ok(VERIFY_WRITE, dst, ndst)) {
- if (0 == ret)
- ret = -EFAULT;
- break;
- }
- for (; n; n--, src += (1 << bta->sampleshift), dst++)
- __put_user(*src, dst);
-
- } else {
- /* copy + word downsampling (audio A/D) */
- __u16 *src = (__u16*)(bta->buf_cpu + bta->read_offset);
- __u16 __user *dst = (__u16 __user *)(buffer + ret);
- int n = ndst>>1;
- if (!access_ok(VERIFY_WRITE,dst,ndst)) {
- if (0 == ret)
- ret = -EFAULT;
- break;
- }
- for (; n; n--, src += (1 << bta->sampleshift), dst++)
- __put_user(*src, dst);
- }
-
- ret += ndst;
- swcount -= ndst;
- hwcount -= nsrc;
- bta->read_count -= nsrc;
- bta->read_offset += nsrc;
- if (bta->read_offset == bta->buf_size)
- bta->read_offset = 0;
- }
- mutex_unlock(&bta->lock);
- remove_wait_queue(&bta->readq, &wait);
- current->state = TASK_RUNNING;
- return ret;
-}
-
-static ssize_t btaudio_dsp_write(struct file *file, const char __user *buffer,
- size_t count, loff_t *ppos)
-{
- return -EINVAL;
-}
-
-static int btaudio_dsp_ioctl(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg)
-{
- struct btaudio *bta = file->private_data;
- int s, i, ret, val = 0;
- void __user *argp = (void __user *)arg;
- int __user *p = argp;
-
- switch (cmd) {
- case OSS_GETVERSION:
- return put_user(SOUND_VERSION, p);
- case SNDCTL_DSP_GETCAPS:
- return 0;
-
- case SNDCTL_DSP_SPEED:
- if (get_user(val, p))
- return -EFAULT;
- if (bta->analog) {
- for (s = 0; s < 16; s++)
- if (val << s >= HWBASE_AD*4/15)
- break;
- for (i = 15; i >= 5; i--)
- if (val << s <= HWBASE_AD*4/i)
- break;
- bta->sampleshift = s;
- bta->decimation = i;
- if (debug)
- printk(KERN_DEBUG "btaudio: rate: req=%d "
- "dec=%d shift=%d hwrate=%d swrate=%d\n",
- val,i,s,(HWBASE_AD*4/i),(HWBASE_AD*4/i)>>s);
- } else {
- bta->sampleshift = (bta->channels == 2) ? 0 : 1;
- bta->decimation = 0;
- }
- if (bta->recording) {
- mutex_lock(&bta->lock);
- stop_recording(bta);
- start_recording(bta);
- mutex_unlock(&bta->lock);
- }
- /* fall through */
- case SOUND_PCM_READ_RATE:
- if (bta->analog) {
- return put_user(HWBASE_AD*4/bta->decimation>>bta->sampleshift, p);
- } else {
- return put_user(bta->rate, p);
- }
-
- case SNDCTL_DSP_STEREO:
- if (!bta->analog) {
- if (get_user(val, p))
- return -EFAULT;
- bta->channels = (val > 0) ? 2 : 1;
- bta->sampleshift = (bta->channels == 2) ? 0 : 1;
- if (debug)
- printk(KERN_INFO
- "btaudio: stereo=%d channels=%d\n",
- val,bta->channels);
- } else {
- if (val == 1)
- return -EFAULT;
- else {
- bta->channels = 1;
- if (debug)
- printk(KERN_INFO
- "btaudio: stereo=0 channels=1\n");
- }
- }
- return put_user((bta->channels)-1, p);
-
- case SNDCTL_DSP_CHANNELS:
- if (!bta->analog) {
- if (get_user(val, p))
- return -EFAULT;
- bta->channels = (val > 1) ? 2 : 1;
- bta->sampleshift = (bta->channels == 2) ? 0 : 1;
- if (debug)
- printk(KERN_DEBUG
- "btaudio: val=%d channels=%d\n",
- val,bta->channels);
- }
- /* fall through */
- case SOUND_PCM_READ_CHANNELS:
- return put_user(bta->channels, p);
-
- case SNDCTL_DSP_GETFMTS: /* Returns a mask */
- if (bta->analog)
- return put_user(AFMT_S16_LE|AFMT_S8, p);
- else
- return put_user(AFMT_S16_LE, p);
-
- case SNDCTL_DSP_SETFMT: /* Selects ONE fmt*/
- if (get_user(val, p))
- return -EFAULT;
- if (val != AFMT_QUERY) {
- if (bta->analog)
- bta->bits = (val == AFMT_S8) ? 8 : 16;
- else
- bta->bits = 16;
- if (bta->recording) {
- mutex_lock(&bta->lock);
- stop_recording(bta);
- start_recording(bta);
- mutex_unlock(&bta->lock);
- }
- }
- if (debug)
- printk(KERN_DEBUG "btaudio: fmt: bits=%d\n",bta->bits);
- return put_user((bta->bits==16) ? AFMT_S16_LE : AFMT_S8,
- p);
- break;
- case SOUND_PCM_READ_BITS:
- return put_user(bta->bits, p);
-
- case SNDCTL_DSP_NONBLOCK:
- file->f_flags |= O_NONBLOCK;
- return 0;
-
- case SNDCTL_DSP_RESET:
- if (bta->recording) {
- mutex_lock(&bta->lock);
- stop_recording(bta);
- mutex_unlock(&bta->lock);
- }
- return 0;
- case SNDCTL_DSP_GETBLKSIZE:
- if (!bta->recording) {
- if (0 != (ret = alloc_buffer(bta)))
- return ret;
- if (0 != (ret = make_risc(bta)))
- return ret;
- }
- return put_user(bta->block_bytes>>bta->sampleshift,p);
-
- case SNDCTL_DSP_SYNC:
- /* NOP */
- return 0;
- case SNDCTL_DSP_GETISPACE:
- {
- audio_buf_info info;
- if (!bta->recording)
- return -EINVAL;
- info.fragsize = bta->block_bytes>>bta->sampleshift;
- info.fragstotal = bta->block_count;
- info.bytes = bta->read_count;
- info.fragments = info.bytes / info.fragsize;
- if (debug)
- printk(KERN_DEBUG "btaudio: SNDCTL_DSP_GETISPACE "
- "returns %d/%d/%d/%d\n",
- info.fragsize, info.fragstotal,
- info.bytes, info.fragments);
- if (copy_to_user(argp, &info, sizeof(info)))
- return -EFAULT;
- return 0;
- }
-#if 0 /* TODO */
- case SNDCTL_DSP_GETTRIGGER:
- case SNDCTL_DSP_SETTRIGGER:
- case SNDCTL_DSP_SETFRAGMENT:
-#endif
- default:
- return -EINVAL;
- }
-}
-
-static unsigned int btaudio_dsp_poll(struct file *file, struct poll_table_struct *wait)
-{
- struct btaudio *bta = file->private_data;
- unsigned int mask = 0;
-
- poll_wait(file, &bta->readq, wait);
-
- if (0 != bta->read_count)
- mask |= (POLLIN | POLLRDNORM);
-
- return mask;
-}
-
-static const struct file_operations btaudio_digital_dsp_fops = {
- .owner = THIS_MODULE,
- .llseek = no_llseek,
- .open = btaudio_dsp_open_digital,
- .release = btaudio_dsp_release,
- .read = btaudio_dsp_read,
- .write = btaudio_dsp_write,
- .ioctl = btaudio_dsp_ioctl,
- .poll = btaudio_dsp_poll,
-};
-
-static const struct file_operations btaudio_analog_dsp_fops = {
- .owner = THIS_MODULE,
- .llseek = no_llseek,
- .open = btaudio_dsp_open_analog,
- .release = btaudio_dsp_release,
- .read = btaudio_dsp_read,
- .write = btaudio_dsp_write,
- .ioctl = btaudio_dsp_ioctl,
- .poll = btaudio_dsp_poll,
-};
-
-/* -------------------------------------------------------------- */
-
-static char *irq_name[] = { "", "", "", "OFLOW", "", "", "", "", "", "", "",
- "RISCI", "FBUS", "FTRGT", "FDSR", "PPERR",
- "RIPERR", "PABORT", "OCERR", "SCERR" };
-
-static irqreturn_t btaudio_irq(int irq, void *dev_id)
-{
- int count = 0;
- u32 stat,astat;
- struct btaudio *bta = dev_id;
- int handled = 0;
-
- for (;;) {
- count++;
- stat = btread(REG_INT_STAT);
- astat = stat & btread(REG_INT_MASK);
- if (!astat)
- return IRQ_RETVAL(handled);
- handled = 1;
- btwrite(astat,REG_INT_STAT);
-
- if (irq_debug) {
- int i;
- printk(KERN_DEBUG "btaudio: irq loop=%d risc=%x, bits:",
- count, stat>>28);
- for (i = 0; i < (sizeof(irq_name)/sizeof(char*)); i++) {
- if (stat & (1 << i))
- printk(" %s",irq_name[i]);
- if (astat & (1 << i))
- printk("*");
- }
- printk("\n");
- }
- if (stat & IRQ_RISCI) {
- int blocks;
- blocks = (stat >> 28) - bta->dma_block;
- if (blocks < 0)
- blocks += bta->block_count;
- bta->dma_block = stat >> 28;
- if (bta->read_count + 2*bta->block_bytes > bta->buf_size) {
- stop_recording(bta);
- printk(KERN_INFO "btaudio: buffer overrun\n");
- }
- if (blocks > 0) {
- bta->read_count += blocks * bta->block_bytes;
- wake_up_interruptible(&bta->readq);
- }
- }
- if (count > 10) {
- printk(KERN_WARNING
- "btaudio: Oops - irq mask cleared\n");
- btwrite(0, REG_INT_MASK);
- }
- }
- return IRQ_NONE;
-}
-
-/* -------------------------------------------------------------- */
-
-static unsigned int dsp1 = -1;
-static unsigned int dsp2 = -1;
-static unsigned int mixer = -1;
-static int latency = -1;
-static int digital = 1;
-static int analog = 1;
-static int rate;
-
-#define BTA_OSPREY200 1
-
-static struct cardinfo cards[] = {
- [0] = {
- .name = "default",
- .rate = 32000,
- },
- [BTA_OSPREY200] = {
- .name = "Osprey 200",
- .rate = 44100,
- },
-};
-
-static int __devinit btaudio_probe(struct pci_dev *pci_dev,
- const struct pci_device_id *pci_id)
-{
- struct btaudio *bta;
- struct cardinfo *card = &cards[pci_id->driver_data];
- unsigned char revision,lat;
- int rc = -EBUSY;
-
- if (pci_enable_device(pci_dev))
- return -EIO;
- if (!request_mem_region(pci_resource_start(pci_dev,0),
- pci_resource_len(pci_dev,0),
- "btaudio")) {
- return -EBUSY;
- }
-
- bta = kzalloc(sizeof(*bta),GFP_ATOMIC);
- if (!bta) {
- rc = -ENOMEM;
- goto fail0;
- }
-
- bta->pci = pci_dev;
- bta->irq = pci_dev->irq;
- bta->mem = pci_resource_start(pci_dev,0);
- bta->mmio = ioremap(pci_resource_start(pci_dev,0),
- pci_resource_len(pci_dev,0));
-
- bta->source = 1;
- bta->bits = 8;
- bta->channels = 1;
- if (bta->analog) {
- bta->decimation = 15;
- } else {
- bta->decimation = 0;
- bta->sampleshift = 1;
- }
-
- /* sample rate */
- bta->rate = card->rate;
- if (rate)
- bta->rate = rate;
-
- mutex_init(&bta->lock);
- init_waitqueue_head(&bta->readq);
-
- if (-1 != latency) {
- printk(KERN_INFO "btaudio: setting pci latency timer to %d\n",
- latency);
- pci_write_config_byte(pci_dev, PCI_LATENCY_TIMER, latency);
- }
- pci_read_config_byte(pci_dev, PCI_CLASS_REVISION, &revision);
- pci_read_config_byte(pci_dev, PCI_LATENCY_TIMER, &lat);
- printk(KERN_INFO "btaudio: Bt%x (rev %d) at %02x:%02x.%x, ",
- pci_dev->device,revision,pci_dev->bus->number,
- PCI_SLOT(pci_dev->devfn),PCI_FUNC(pci_dev->devfn));
- printk("irq: %d, latency: %d, mmio: 0x%lx\n",
- bta->irq, lat, bta->mem);
- printk("btaudio: using card config \"%s\"\n", card->name);
-
- /* init hw */
- btwrite(0, REG_GPIO_DMA_CTL);
- btwrite(0, REG_INT_MASK);
- btwrite(~0U, REG_INT_STAT);
- pci_set_master(pci_dev);
-
- if ((rc = request_irq(bta->irq, btaudio_irq, IRQF_SHARED|IRQF_DISABLED,
- "btaudio",(void *)bta)) < 0) {
- printk(KERN_WARNING
- "btaudio: can't request irq (rc=%d)\n",rc);
- goto fail1;
- }
-
- /* register devices */
- if (digital) {
- rc = bta->dsp_digital =
- register_sound_dsp(&btaudio_digital_dsp_fops,dsp1);
- if (rc < 0) {
- printk(KERN_WARNING
- "btaudio: can't register digital dsp (rc=%d)\n",rc);
- goto fail2;
- }
- printk(KERN_INFO "btaudio: registered device dsp%d [digital]\n",
- bta->dsp_digital >> 4);
- }
- if (analog) {
- rc = bta->dsp_analog =
- register_sound_dsp(&btaudio_analog_dsp_fops,dsp2);
- if (rc < 0) {
- printk(KERN_WARNING
- "btaudio: can't register analog dsp (rc=%d)\n",rc);
- goto fail3;
- }
- printk(KERN_INFO "btaudio: registered device dsp%d [analog]\n",
- bta->dsp_analog >> 4);
- rc = bta->mixer_dev = register_sound_mixer(&btaudio_mixer_fops,mixer);
- if (rc < 0) {
- printk(KERN_WARNING
- "btaudio: can't register mixer (rc=%d)\n",rc);
- goto fail4;
- }
- printk(KERN_INFO "btaudio: registered device mixer%d\n",
- bta->mixer_dev >> 4);
- }
-
- /* hook into linked list */
- bta->next = btaudios;
- btaudios = bta;
-
- pci_set_drvdata(pci_dev,bta);
- return 0;
-
- fail4:
- unregister_sound_dsp(bta->dsp_analog);
- fail3:
- if (digital)
- unregister_sound_dsp(bta->dsp_digital);
- fail2:
- free_irq(bta->irq,bta);
- fail1:
- iounmap(bta->mmio);
- kfree(bta);
- fail0:
- release_mem_region(pci_resource_start(pci_dev,0),
- pci_resource_len(pci_dev,0));
- return rc;
-}
-
-static void __devexit btaudio_remove(struct pci_dev *pci_dev)
-{
- struct btaudio *bta = pci_get_drvdata(pci_dev);
- struct btaudio *walk;
-
- /* turn off all DMA / IRQs */
- btand(~15, REG_GPIO_DMA_CTL);
- btwrite(0, REG_INT_MASK);
- btwrite(~0U, REG_INT_STAT);
-
- /* unregister devices */
- if (digital) {
- unregister_sound_dsp(bta->dsp_digital);
- }
- if (analog) {
- unregister_sound_dsp(bta->dsp_analog);
- unregister_sound_mixer(bta->mixer_dev);
- }
-
- /* free resources */
- free_buffer(bta);
- free_irq(bta->irq,bta);
- release_mem_region(pci_resource_start(pci_dev,0),
- pci_resource_len(pci_dev,0));
- iounmap(bta->mmio);
-
- /* remove from linked list */
- if (bta == btaudios) {
- btaudios = NULL;
- } else {
- for (walk = btaudios; walk->next != bta; walk = walk->next)
- ; /* if (NULL == walk->next) BUG(); */
- walk->next = bta->next;
- }
-
- pci_set_drvdata(pci_dev, NULL);
- kfree(bta);
- return;
-}
-
-/* -------------------------------------------------------------- */
-
-static struct pci_device_id btaudio_pci_tbl[] = {
- {
- .vendor = PCI_VENDOR_ID_BROOKTREE,
- .device = 0x0878,
- .subvendor = 0x0070,
- .subdevice = 0xff01,
- .driver_data = BTA_OSPREY200,
- },{
- .vendor = PCI_VENDOR_ID_BROOKTREE,
- .device = 0x0878,
- .subvendor = PCI_ANY_ID,
- .subdevice = PCI_ANY_ID,
- },{
- .vendor = PCI_VENDOR_ID_BROOKTREE,
- .device = 0x0878,
- .subvendor = PCI_ANY_ID,
- .subdevice = PCI_ANY_ID,
- },{
- /* --- end of list --- */
- }
-};
-
-static struct pci_driver btaudio_pci_driver = {
- .name = "btaudio",
- .id_table = btaudio_pci_tbl,
- .probe = btaudio_probe,
- .remove = __devexit_p(btaudio_remove),
-};
-
-static int btaudio_init_module(void)
-{
- printk(KERN_INFO "btaudio: driver version 0.7 loaded [%s%s%s]\n",
- digital ? "digital" : "",
- analog && digital ? "+" : "",
- analog ? "analog" : "");
- return pci_register_driver(&btaudio_pci_driver);
-}
-
-static void btaudio_cleanup_module(void)
-{
- pci_unregister_driver(&btaudio_pci_driver);
- return;
-}
-
-module_init(btaudio_init_module);
-module_exit(btaudio_cleanup_module);
-
-module_param(dsp1, int, S_IRUGO);
-module_param(dsp2, int, S_IRUGO);
-module_param(mixer, int, S_IRUGO);
-module_param(debug, int, S_IRUGO | S_IWUSR);
-module_param(irq_debug, int, S_IRUGO | S_IWUSR);
-module_param(digital, int, S_IRUGO);
-module_param(analog, int, S_IRUGO);
-module_param(rate, int, S_IRUGO);
-module_param(latency, int, S_IRUGO);
-MODULE_PARM_DESC(latency,"pci latency timer");
-
-MODULE_DEVICE_TABLE(pci, btaudio_pci_tbl);
-MODULE_DESCRIPTION("bt878 audio dma driver");
-MODULE_AUTHOR("Gerd Knorr");
-MODULE_LICENSE("GPL");
-
-/*
- * Local variables:
- * c-basic-offset: 8
- * End:
- */
+++ /dev/null
-/*
- * Copyright (C) by Hannu Savolainen 1993-1997
- *
- * cs4232.c
- *
- * The low level driver for Crystal CS4232 based cards. The CS4232 is
- * a PnP compatible chip which contains a CS4231A codec, SB emulation,
- * a MPU401 compatible MIDI port, joystick and synthesizer and IDE CD-ROM
- * interfaces. This is just a temporary driver until full PnP support
- * gets implemented. Just the WSS codec, FM synth and the MIDI ports are
- * supported. Other interfaces are left uninitialized.
- *
- * ifdef ...WAVEFRONT...
- *
- * Support is provided for initializing the WaveFront synth
- * interface as well, which is logical device #4. Note that if
- * you have a Tropez+ card, you probably don't need to setup
- * the CS4232-supported MIDI interface, since it corresponds to
- * the internal 26-pin header that's hard to access. Using this
- * requires an additional IRQ, a resource none too plentiful in
- * this environment. Just don't set module parameters mpuio and
- * mpuirq, and the MIDI port will be left uninitialized. You can
- * still use the ICS2115 hosted MIDI interface which corresponds
- * to the 9-pin D connector on the back of the card.
- *
- * endif ...WAVEFRONT...
- *
- * Supported chips are:
- * CS4232
- * CS4236
- * CS4236B
- *
- * Note: You will need a PnP config setup to initialise some CS4232 boards
- * anyway.
- *
- * Changes
- * John Rood Added Bose Sound System Support.
- * Toshio Spoor
- * Alan Cox Modularisation, Basic cleanups.
- * Paul Barton-Davis Separated MPU configuration, added
- * Tropez+ (WaveFront) support
- * Christoph Hellwig Adapted to module_init/module_exit,
- * simple cleanups
- * Arnaldo C. de Melo got rid of attach_uart401
- * Bartlomiej Zolnierkiewicz
- * Added some __init/__initdata/__exit
- * Marcus Meissner Added ISA PnP support.
- */
-
-#include <linux/pnp.h>
-#include <linux/module.h>
-#include <linux/init.h>
-
-#include "sound_config.h"
-
-#include "ad1848.h"
-#include "mpu401.h"
-
-#define KEY_PORT 0x279 /* Same as LPT1 status port */
-#define CSN_NUM 0x99 /* Just a random number */
-#define INDEX_ADDRESS 0x00 /* (R0) Index Address Register */
-#define INDEX_DATA 0x01 /* (R1) Indexed Data Register */
-#define PIN_CONTROL 0x0a /* (I10) Pin Control */
-#define ENABLE_PINS 0xc0 /* XCTRL0/XCTRL1 enable */
-
-static void CS_OUT(unsigned char a)
-{
- outb(a, KEY_PORT);
-}
-
-#define CS_OUT2(a, b) {CS_OUT(a);CS_OUT(b);}
-#define CS_OUT3(a, b, c) {CS_OUT(a);CS_OUT(b);CS_OUT(c);}
-
-static int __initdata bss = 0;
-static int mpu_base, mpu_irq;
-static int synth_base, synth_irq;
-static int mpu_detected;
-
-static int probe_cs4232_mpu(struct address_info *hw_config)
-{
- /*
- * Just write down the config values.
- */
-
- mpu_base = hw_config->io_base;
- mpu_irq = hw_config->irq;
-
- return 1;
-}
-
-static unsigned char crystal_key[] = /* A 32 byte magic key sequence */
-{
- 0x96, 0x35, 0x9a, 0xcd, 0xe6, 0xf3, 0x79, 0xbc,
- 0x5e, 0xaf, 0x57, 0x2b, 0x15, 0x8a, 0xc5, 0xe2,
- 0xf1, 0xf8, 0x7c, 0x3e, 0x9f, 0x4f, 0x27, 0x13,
- 0x09, 0x84, 0x42, 0xa1, 0xd0, 0x68, 0x34, 0x1a
-};
-
-static void sleep(unsigned howlong)
-{
- current->state = TASK_INTERRUPTIBLE;
- schedule_timeout(howlong);
-}
-
-static void enable_xctrl(int baseio)
-{
- unsigned char regd;
-
- /*
- * Some IBM Aptiva's have the Bose Sound System. By default
- * the Bose Amplifier is disabled. The amplifier will be
- * activated, by setting the XCTRL0 and XCTRL1 bits.
- * Volume of the monitor bose speakers/woofer, can then
- * be set by changing the PCM volume.
- *
- */
-
- printk("cs4232: enabling Bose Sound System Amplifier.\n");
-
- /* Switch to Pin Control Address */
- regd = inb(baseio + INDEX_ADDRESS) & 0xe0;
- outb(((unsigned char) (PIN_CONTROL | regd)), baseio + INDEX_ADDRESS );
-
- /* Activate the XCTRL0 and XCTRL1 Pins */
- regd = inb(baseio + INDEX_DATA);
- outb(((unsigned char) (ENABLE_PINS | regd)), baseio + INDEX_DATA );
-}
-
-static int __init probe_cs4232(struct address_info *hw_config, int isapnp_configured)
-{
- int i, n;
- int base = hw_config->io_base, irq = hw_config->irq;
- int dma1 = hw_config->dma, dma2 = hw_config->dma2;
- struct resource *ports;
-
- if (base == -1 || irq == -1 || dma1 == -1) {
- printk(KERN_ERR "cs4232: dma, irq and io must be set.\n");
- return 0;
- }
-
- /*
- * Verify that the I/O port range is free.
- */
-
- ports = request_region(base, 4, "ad1848");
- if (!ports) {
- printk(KERN_ERR "cs4232.c: I/O port 0x%03x not free\n", base);
- return 0;
- }
- if (ad1848_detect(ports, NULL, hw_config->osp)) {
- goto got_it; /* The card is already active */
- }
- if (isapnp_configured) {
- printk(KERN_ERR "cs4232.c: ISA PnP configured, but not detected?\n");
- goto fail;
- }
-
- /*
- * This version of the driver doesn't use the PnP method when configuring
- * the card but a simplified method defined by Crystal. This means that
- * just one CS4232 compatible device can exist on the system. Also this
- * method conflicts with possible PnP support in the OS. For this reason
- * driver is just a temporary kludge.
- *
- * Also the Cirrus/Crystal method doesn't always work. Try ISA PnP first ;)
- */
-
- /*
- * Repeat initialization few times since it doesn't always succeed in
- * first time.
- */
-
- for (n = 0; n < 4; n++)
- {
- /*
- * Wake up the card by sending a 32 byte Crystal key to the key port.
- */
-
- for (i = 0; i < 32; i++)
- CS_OUT(crystal_key[i]);
-
- sleep(HZ / 10);
-
- /*
- * Now set the CSN (Card Select Number).
- */
-
- CS_OUT2(0x06, CSN_NUM);
-
- /*
- * Then set some config bytes. First logical device 0
- */
-
- CS_OUT2(0x15, 0x00); /* Select logical device 0 (WSS/SB/FM) */
- CS_OUT3(0x47, (base >> 8) & 0xff, base & 0xff); /* WSS base */
-
- if (!request_region(0x388, 4, "FM")) /* Not free */
- CS_OUT3(0x48, 0x00, 0x00) /* FM base off */
- else {
- release_region(0x388, 4);
- CS_OUT3(0x48, 0x03, 0x88); /* FM base 0x388 */
- }
-
- CS_OUT3(0x42, 0x00, 0x00); /* SB base off */
- CS_OUT2(0x22, irq); /* SB+WSS IRQ */
- CS_OUT2(0x2a, dma1); /* SB+WSS DMA */
-
- if (dma2 != -1)
- CS_OUT2(0x25, dma2) /* WSS DMA2 */
- else
- CS_OUT2(0x25, 4); /* No WSS DMA2 */
-
- CS_OUT2(0x33, 0x01); /* Activate logical dev 0 */
-
- sleep(HZ / 10);
-
- /*
- * Initialize logical device 3 (MPU)
- */
-
- if (mpu_base != 0 && mpu_irq != 0)
- {
- CS_OUT2(0x15, 0x03); /* Select logical device 3 (MPU) */
- CS_OUT3(0x47, (mpu_base >> 8) & 0xff, mpu_base & 0xff); /* MPU base */
- CS_OUT2(0x22, mpu_irq); /* MPU IRQ */
- CS_OUT2(0x33, 0x01); /* Activate logical dev 3 */
- }
-
- if(synth_base != 0)
- {
- CS_OUT2 (0x15, 0x04); /* logical device 4 (WaveFront) */
- CS_OUT3 (0x47, (synth_base >> 8) & 0xff,
- synth_base & 0xff); /* base */
- CS_OUT2 (0x22, synth_irq); /* IRQ */
- CS_OUT2 (0x33, 0x01); /* Activate logical dev 4 */
- }
-
- /*
- * Finally activate the chip
- */
-
- CS_OUT(0x79);
-
- sleep(HZ / 5);
-
- /*
- * Then try to detect the codec part of the chip
- */
-
- if (ad1848_detect(ports, NULL, hw_config->osp))
- goto got_it;
-
- sleep(HZ);
- }
-fail:
- release_region(base, 4);
- return 0;
-
-got_it:
- if (dma2 == -1)
- dma2 = dma1;
-
- hw_config->slots[0] = ad1848_init("Crystal audio controller", ports,
- irq,
- dma1, /* Playback DMA */
- dma2, /* Capture DMA */
- 0,
- hw_config->osp,
- THIS_MODULE);
-
- if (hw_config->slots[0] != -1 &&
- audio_devs[hw_config->slots[0]]->mixer_dev!=-1)
- {
- /* Assume the mixer map is as suggested in the CS4232 databook */
- AD1848_REROUTE(SOUND_MIXER_LINE1, SOUND_MIXER_LINE);
- AD1848_REROUTE(SOUND_MIXER_LINE2, SOUND_MIXER_CD);
- AD1848_REROUTE(SOUND_MIXER_LINE3, SOUND_MIXER_SYNTH); /* FM synth */
- }
- if (mpu_base != 0 && mpu_irq != 0)
- {
- static struct address_info hw_config2 = {
- 0
- }; /* Ensure it's initialized */
-
- hw_config2.io_base = mpu_base;
- hw_config2.irq = mpu_irq;
- hw_config2.dma = -1;
- hw_config2.dma2 = -1;
- hw_config2.always_detect = 0;
- hw_config2.name = NULL;
- hw_config2.driver_use_1 = 0;
- hw_config2.driver_use_2 = 0;
- hw_config2.card_subtype = 0;
-
- if (probe_uart401(&hw_config2, THIS_MODULE))
- {
- mpu_detected = 1;
- }
- else
- {
- mpu_base = mpu_irq = 0;
- }
- hw_config->slots[1] = hw_config2.slots[1];
- }
-
- if (bss)
- enable_xctrl(base);
-
- return 1;
-}
-
-static void __devexit unload_cs4232(struct address_info *hw_config)
-{
- int base = hw_config->io_base, irq = hw_config->irq;
- int dma1 = hw_config->dma, dma2 = hw_config->dma2;
-
- if (dma2 == -1)
- dma2 = dma1;
-
- ad1848_unload(base,
- irq,
- dma1, /* Playback DMA */
- dma2, /* Capture DMA */
- 0);
-
- sound_unload_audiodev(hw_config->slots[0]);
- if (mpu_base != 0 && mpu_irq != 0 && mpu_detected)
- {
- static struct address_info hw_config2 =
- {
- 0
- }; /* Ensure it's initialized */
-
- hw_config2.io_base = mpu_base;
- hw_config2.irq = mpu_irq;
- hw_config2.dma = -1;
- hw_config2.dma2 = -1;
- hw_config2.always_detect = 0;
- hw_config2.name = NULL;
- hw_config2.driver_use_1 = 0;
- hw_config2.driver_use_2 = 0;
- hw_config2.card_subtype = 0;
- hw_config2.slots[1] = hw_config->slots[1];
-
- unload_uart401(&hw_config2);
- }
-}
-
-static struct address_info cfg;
-static struct address_info cfg_mpu;
-
-static int __initdata io = -1;
-static int __initdata irq = -1;
-static int __initdata dma = -1;
-static int __initdata dma2 = -1;
-static int __initdata mpuio = -1;
-static int __initdata mpuirq = -1;
-static int __initdata synthio = -1;
-static int __initdata synthirq = -1;
-static int __initdata isapnp = 1;
-
-static unsigned int cs4232_devices;
-
-MODULE_DESCRIPTION("CS4232 based soundcard driver");
-MODULE_AUTHOR("Hannu Savolainen, Paul Barton-Davis");
-MODULE_LICENSE("GPL");
-
-module_param(io, int, 0);
-MODULE_PARM_DESC(io,"base I/O port for AD1848");
-module_param(irq, int, 0);
-MODULE_PARM_DESC(irq,"IRQ for AD1848 chip");
-module_param(dma, int, 0);
-MODULE_PARM_DESC(dma,"8 bit DMA for AD1848 chip");
-module_param(dma2, int, 0);
-MODULE_PARM_DESC(dma2,"16 bit DMA for AD1848 chip");
-module_param(mpuio, int, 0);
-MODULE_PARM_DESC(mpuio,"MPU 401 base address");
-module_param(mpuirq, int, 0);
-MODULE_PARM_DESC(mpuirq,"MPU 401 IRQ");
-module_param(synthio, int, 0);
-MODULE_PARM_DESC(synthio,"Maui WaveTable base I/O port");
-module_param(synthirq, int, 0);
-MODULE_PARM_DESC(synthirq,"Maui WaveTable IRQ");
-module_param(isapnp, bool, 0);
-MODULE_PARM_DESC(isapnp,"Enable ISAPnP probing (default 1)");
-module_param(bss, bool, 0);
-MODULE_PARM_DESC(bss,"Enable Bose Sound System Support (default 0)");
-
-/*
- * Install a CS4232 based card. Need to have ad1848 and mpu401
- * loaded ready.
- */
-
-/* All cs4232 based cards have the main ad1848 card either as CSC0000 or
- * CSC0100. */
-static const struct pnp_device_id cs4232_pnp_table[] = {
- { .id = "CSC0100", .driver_data = 0 },
- { .id = "CSC0000", .driver_data = 0 },
- /* Guillemot Turtlebeach something appears to be cs4232 compatible
- * (untested) */
- { .id = "GIM0100", .driver_data = 0 },
- { .id = ""}
-};
-
-MODULE_DEVICE_TABLE(pnp, cs4232_pnp_table);
-
-static int __init cs4232_pnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id)
-{
- struct address_info *isapnpcfg;
-
- isapnpcfg = kmalloc(sizeof(*isapnpcfg),GFP_KERNEL);
- if (!isapnpcfg)
- return -ENOMEM;
-
- isapnpcfg->irq = pnp_irq(dev, 0);
- isapnpcfg->dma = pnp_dma(dev, 0);
- isapnpcfg->dma2 = pnp_dma(dev, 1);
- isapnpcfg->io_base = pnp_port_start(dev, 0);
- if (probe_cs4232(isapnpcfg,TRUE) == 0) {
- printk(KERN_ERR "cs4232: ISA PnP card found, but not detected?\n");
- kfree(isapnpcfg);
- return -ENODEV;
- }
- pnp_set_drvdata(dev,isapnpcfg);
- cs4232_devices++;
- return 0;
-}
-
-static void __devexit cs4232_pnp_remove(struct pnp_dev *dev)
-{
- struct address_info *cfg = pnp_get_drvdata(dev);
- if (cfg) {
- unload_cs4232(cfg);
- kfree(cfg);
- }
-}
-
-static struct pnp_driver cs4232_driver = {
- .name = "cs4232",
- .id_table = cs4232_pnp_table,
- .probe = cs4232_pnp_probe,
- .remove = __devexit_p(cs4232_pnp_remove),
-};
-
-static int __init init_cs4232(void)
-{
-#ifdef CONFIG_SOUND_WAVEFRONT_MODULE
- if(synthio == -1)
- printk(KERN_INFO "cs4232: set synthio and synthirq to use the wavefront facilities.\n");
- else {
- synth_base = synthio;
- synth_irq = synthirq;
- }
-#else
- if(synthio != -1)
- printk(KERN_WARNING "cs4232: wavefront support not enabled in this driver.\n");
-#endif
- cfg.irq = -1;
-
- if (isapnp) {
- pnp_register_driver(&cs4232_driver);
- if (cs4232_devices)
- return 0;
- }
-
- if(io==-1||irq==-1||dma==-1)
- {
- printk(KERN_ERR "cs4232: Must set io, irq and dma.\n");
- return -ENODEV;
- }
-
- cfg.io_base = io;
- cfg.irq = irq;
- cfg.dma = dma;
- cfg.dma2 = dma2;
-
- cfg_mpu.io_base = -1;
- cfg_mpu.irq = -1;
-
- if (mpuio != -1 && mpuirq != -1) {
- cfg_mpu.io_base = mpuio;
- cfg_mpu.irq = mpuirq;
- probe_cs4232_mpu(&cfg_mpu); /* Bug always returns 0 not OK -- AC */
- }
-
- if (probe_cs4232(&cfg,FALSE) == 0)
- return -ENODEV;
-
- return 0;
-}
-
-static void __exit cleanup_cs4232(void)
-{
- pnp_unregister_driver(&cs4232_driver);
- if (cfg.irq != -1)
- unload_cs4232(&cfg); /* Unloads global MPU as well, if needed */
-}
-
-module_init(init_cs4232);
-module_exit(cleanup_cs4232);
-
-#ifndef MODULE
-static int __init setup_cs4232(char *str)
-{
- /* io, irq, dma, dma2 mpuio, mpuirq*/
- int ints[7];
-
- /* If we have isapnp cards, no need for options */
- pnp_register_driver(&cs4232_driver);
- if (cs4232_devices)
- return 1;
-
- str = get_options(str, ARRAY_SIZE(ints), ints);
-
- io = ints[1];
- irq = ints[2];
- dma = ints[3];
- dma2 = ints[4];
- mpuio = ints[5];
- mpuirq = ints[6];
-
- return 1;
-}
-
-__setup("cs4232=", setup_cs4232);
-#endif
+++ /dev/null
-/*
- * Intel i810 and friends ICH driver for Linux
- * Alan Cox <alan@redhat.com>
- *
- * Built from:
- * Low level code: Zach Brown (original nonworking i810 OSS driver)
- * Jaroslav Kysela <perex@suse.cz> (working ALSA driver)
- *
- * Framework: Thomas Sailer <sailer@ife.ee.ethz.ch>
- * Extended by: Zach Brown <zab@redhat.com>
- * and others..
- *
- * Hardware Provided By:
- * Analog Devices (A major AC97 codec maker)
- * Intel Corp (you've probably heard of them already)
- *
- * AC97 clues and assistance provided by
- * Analog Devices
- * Zach 'Fufu' Brown
- * Jeff Garzik
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- *
- * Intel 810 theory of operation
- *
- * The chipset provides three DMA channels that talk to an AC97
- * CODEC (AC97 is a digital/analog mixer standard). At its simplest
- * you get 48Khz audio with basic volume and mixer controls. At the
- * best you get rate adaption in the codec. We set the card up so
- * that we never take completion interrupts but instead keep the card
- * chasing its tail around a ring buffer. This is needed for mmap
- * mode audio and happens to work rather well for non-mmap modes too.
- *
- * The board has one output channel for PCM audio (supported) and
- * a stereo line in and mono microphone input. Again these are normally
- * locked to 48Khz only. Right now recording is not finished.
- *
- * There is no midi support, no synth support. Use timidity. To get
- * esd working you need to use esd -r 48000 as it won't probe 48KHz
- * by default. mpg123 can't handle 48Khz only audio so use xmms.
- *
- * Fix The Sound On Dell
- *
- * Not everyone uses 48KHz. We know of no way to detect this reliably
- * and certainly not to get the right data. If your i810 audio sounds
- * stupid you may need to investigate other speeds. According to Analog
- * they tend to use a 14.318MHz clock which gives you a base rate of
- * 41194Hz.
- *
- * This is available via the 'ftsodell=1' option.
- *
- * If you need to force a specific rate set the clocking= option
- *
- * This driver is cursed. (Ben LaHaise)
- *
- * ICH 3 caveats
- * Intel errata #7 for ICH3 IO. We need to disable SMI stuff
- * when codec probing. [Not Yet Done]
- *
- * ICH 4 caveats
- *
- * The ICH4 has the feature, that the codec ID doesn't have to be
- * congruent with the IO connection.
- *
- * Therefore, from driver version 0.23 on, there is a "codec ID" <->
- * "IO register base offset" mapping (card->ac97_id_map) field.
- *
- * Juergen "George" Sawinski (jsaw)
- */
-
-#include <linux/module.h>
-#include <linux/string.h>
-#include <linux/ctype.h>
-#include <linux/ioport.h>
-#include <linux/sched.h>
-#include <linux/delay.h>
-#include <linux/sound.h>
-#include <linux/slab.h>
-#include <linux/soundcard.h>
-#include <linux/pci.h>
-#include <linux/interrupt.h>
-#include <asm/io.h>
-#include <asm/dma.h>
-#include <linux/init.h>
-#include <linux/poll.h>
-#include <linux/spinlock.h>
-#include <linux/smp_lock.h>
-#include <linux/ac97_codec.h>
-#include <linux/bitops.h>
-#include <linux/mutex.h>
-#include <linux/mm.h>
-
-#include <asm/uaccess.h>
-
-#define DRIVER_VERSION "1.01"
-
-#define MODULOP2(a, b) ((a) & ((b) - 1))
-#define MASKP2(a, b) ((a) & ~((b) - 1))
-
-static int ftsodell;
-static int strict_clocking;
-static unsigned int clocking;
-static int spdif_locked;
-static int ac97_quirk = AC97_TUNE_DEFAULT;
-
-//#define DEBUG
-//#define DEBUG2
-//#define DEBUG_INTERRUPTS
-//#define DEBUG_MMAP
-//#define DEBUG_MMIO
-
-#define ADC_RUNNING 1
-#define DAC_RUNNING 2
-
-#define I810_FMT_16BIT 1
-#define I810_FMT_STEREO 2
-#define I810_FMT_MASK 3
-
-#define SPDIF_ON 0x0004
-#define SURR_ON 0x0010
-#define CENTER_LFE_ON 0x0020
-#define VOL_MUTED 0x8000
-
-/* the 810's array of pointers to data buffers */
-
-struct sg_item {
-#define BUSADDR_MASK 0xFFFFFFFE
- u32 busaddr;
-#define CON_IOC 0x80000000 /* interrupt on completion */
-#define CON_BUFPAD 0x40000000 /* pad underrun with last sample, else 0 */
-#define CON_BUFLEN_MASK 0x0000ffff /* buffer length in samples */
- u32 control;
-};
-
-/* an instance of the i810 channel */
-#define SG_LEN 32
-struct i810_channel
-{
- /* these sg guys should probably be allocated
- separately as nocache. Must be 8 byte aligned */
- struct sg_item sg[SG_LEN]; /* 32*8 */
- u32 offset; /* 4 */
- u32 port; /* 4 */
- u32 used;
- u32 num;
-};
-
-/*
- * we have 3 separate dma engines. pcm in, pcm out, and mic.
- * each dma engine has controlling registers. These goofy
- * names are from the datasheet, but make it easy to write
- * code while leafing through it.
- *
- * ICH4 has 6 dma engines, pcm in, pcm out, mic, pcm in 2,
- * mic in 2, s/pdif. Of special interest is the fact that
- * the upper 3 DMA engines on the ICH4 *must* be accessed
- * via mmio access instead of pio access.
- */
-
-#define ENUM_ENGINE(PRE,DIG) \
-enum { \
- PRE##_BASE = 0x##DIG##0, /* Base Address */ \
- PRE##_BDBAR = 0x##DIG##0, /* Buffer Descriptor list Base Address */ \
- PRE##_CIV = 0x##DIG##4, /* Current Index Value */ \
- PRE##_LVI = 0x##DIG##5, /* Last Valid Index */ \
- PRE##_SR = 0x##DIG##6, /* Status Register */ \
- PRE##_PICB = 0x##DIG##8, /* Position In Current Buffer */ \
- PRE##_PIV = 0x##DIG##a, /* Prefetched Index Value */ \
- PRE##_CR = 0x##DIG##b /* Control Register */ \
-}
-
-ENUM_ENGINE(OFF,0); /* Offsets */
-ENUM_ENGINE(PI,0); /* PCM In */
-ENUM_ENGINE(PO,1); /* PCM Out */
-ENUM_ENGINE(MC,2); /* Mic In */
-
-enum {
- GLOB_CNT = 0x2c, /* Global Control */
- GLOB_STA = 0x30, /* Global Status */
- CAS = 0x34 /* Codec Write Semaphore Register */
-};
-
-ENUM_ENGINE(MC2,4); /* Mic In 2 */
-ENUM_ENGINE(PI2,5); /* PCM In 2 */
-ENUM_ENGINE(SP,6); /* S/PDIF */
-
-enum {
- SDM = 0x80 /* SDATA_IN Map Register */
-};
-
-/* interrupts for a dma engine */
-#define DMA_INT_FIFO (1<<4) /* fifo under/over flow */
-#define DMA_INT_COMPLETE (1<<3) /* buffer read/write complete and ioc set */
-#define DMA_INT_LVI (1<<2) /* last valid done */
-#define DMA_INT_CELV (1<<1) /* last valid is current */
-#define DMA_INT_DCH (1) /* DMA Controller Halted (happens on LVI interrupts) */
-#define DMA_INT_MASK (DMA_INT_FIFO|DMA_INT_COMPLETE|DMA_INT_LVI)
-
-/* interrupts for the whole chip */
-#define INT_SEC (1<<11)
-#define INT_PRI (1<<10)
-#define INT_MC (1<<7)
-#define INT_PO (1<<6)
-#define INT_PI (1<<5)
-#define INT_MO (1<<2)
-#define INT_NI (1<<1)
-#define INT_GPI (1<<0)
-#define INT_MASK (INT_SEC|INT_PRI|INT_MC|INT_PO|INT_PI|INT_MO|INT_NI|INT_GPI)
-
-/* magic numbers to protect our data structures */
-#define I810_CARD_MAGIC 0x5072696E /* "Prin" */
-#define I810_STATE_MAGIC 0x63657373 /* "cess" */
-#define I810_DMA_MASK 0xffffffff /* DMA buffer mask for pci_alloc_consist */
-#define NR_HW_CH 3
-
-/* maxinum number of AC97 codecs connected, AC97 2.0 defined 4 */
-#define NR_AC97 4
-
-/* Please note that an 8bit mono stream is not valid on this card, you must have a 16bit */
-/* stream at a minimum for this card to be happy */
-static const unsigned sample_size[] = { 1, 2, 2, 4 };
-/* Samples are 16bit values, so we are shifting to a word, not to a byte, hence shift */
-/* values are one less than might be expected */
-static const unsigned sample_shift[] = { -1, 0, 0, 1 };
-
-enum {
- ICH82801AA = 0,
- ICH82901AB,
- INTEL440MX,
- INTELICH2,
- INTELICH3,
- INTELICH4,
- INTELICH5,
- SI7012,
- NVIDIA_NFORCE,
- AMD768,
- AMD8111
-};
-
-static char * card_names[] = {
- "Intel ICH 82801AA",
- "Intel ICH 82901AB",
- "Intel 440MX",
- "Intel ICH2",
- "Intel ICH3",
- "Intel ICH4",
- "Intel ICH5",
- "SiS 7012",
- "NVIDIA nForce Audio",
- "AMD 768",
- "AMD-8111 IOHub"
-};
-
-/* These are capabilities (and bugs) the chipsets _can_ have */
-static struct {
- int16_t nr_ac97;
-#define CAP_MMIO 0x0001
-#define CAP_20BIT_AUDIO_SUPPORT 0x0002
- u_int16_t flags;
-} card_cap[] = {
- { 1, 0x0000 }, /* ICH82801AA */
- { 1, 0x0000 }, /* ICH82901AB */
- { 1, 0x0000 }, /* INTEL440MX */
- { 1, 0x0000 }, /* INTELICH2 */
- { 2, 0x0000 }, /* INTELICH3 */
- { 3, 0x0003 }, /* INTELICH4 */
- { 3, 0x0003 }, /* INTELICH5 */
- /*@FIXME to be verified*/ { 2, 0x0000 }, /* SI7012 */
- /*@FIXME to be verified*/ { 2, 0x0000 }, /* NVIDIA_NFORCE */
- /*@FIXME to be verified*/ { 2, 0x0000 }, /* AMD768 */
- /*@FIXME to be verified*/ { 3, 0x0001 }, /* AMD8111 */
-};
-
-static struct pci_device_id i810_pci_tbl [] = {
- {PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_5,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, ICH82801AA},
- {PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AB_5,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, ICH82901AB},
- {PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_440MX,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, INTEL440MX},
- {PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_4,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, INTELICH2},
- {PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_5,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, INTELICH3},
- {PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_5,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, INTELICH4},
- {PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_5,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, INTELICH5},
- {PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_7012,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, SI7012},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_MCP1_AUDIO,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, NVIDIA_NFORCE},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_MCP2_AUDIO,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, NVIDIA_NFORCE},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_MCP3_AUDIO,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, NVIDIA_NFORCE},
- {PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_OPUS_7445,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, AMD768},
- {PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8111_AUDIO,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, AMD8111},
- {PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_5,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, INTELICH4},
- {PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_18,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, INTELICH4},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_AUDIO,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, NVIDIA_NFORCE},
- {0,}
-};
-
-MODULE_DEVICE_TABLE (pci, i810_pci_tbl);
-
-#ifdef CONFIG_PM
-#define PM_SUSPENDED(card) (card->pm_suspended)
-#else
-#define PM_SUSPENDED(card) (0)
-#endif
-
-/* "software" or virtual channel, an instance of opened /dev/dsp */
-struct i810_state {
- unsigned int magic;
- struct i810_card *card; /* Card info */
-
- /* single open lock mechanism, only used for recording */
- struct mutex open_mutex;
- wait_queue_head_t open_wait;
-
- /* file mode */
- mode_t open_mode;
-
- /* virtual channel number */
- int virt;
-
-#ifdef CONFIG_PM
- unsigned int pm_saved_dac_rate,pm_saved_adc_rate;
-#endif
- struct dmabuf {
- /* wave sample stuff */
- unsigned int rate;
- unsigned char fmt, enable, trigger;
-
- /* hardware channel */
- struct i810_channel *read_channel;
- struct i810_channel *write_channel;
-
- /* OSS buffer management stuff */
- void *rawbuf;
- dma_addr_t dma_handle;
- unsigned buforder;
- unsigned numfrag;
- unsigned fragshift;
-
- /* our buffer acts like a circular ring */
- unsigned hwptr; /* where dma last started, updated by update_ptr */
- unsigned swptr; /* where driver last clear/filled, updated by read/write */
- int count; /* bytes to be consumed or been generated by dma machine */
- unsigned total_bytes; /* total bytes dmaed by hardware */
-
- unsigned error; /* number of over/underruns */
- wait_queue_head_t wait; /* put process on wait queue when no more space in buffer */
-
- /* redundant, but makes calculations easier */
- /* what the hardware uses */
- unsigned dmasize;
- unsigned fragsize;
- unsigned fragsamples;
-
- /* what we tell the user to expect */
- unsigned userfrags;
- unsigned userfragsize;
-
- /* OSS stuff */
- unsigned mapped:1;
- unsigned ready:1;
- unsigned update_flag;
- unsigned ossfragsize;
- unsigned ossmaxfrags;
- unsigned subdivision;
- } dmabuf;
-};
-
-
-struct i810_card {
- unsigned int magic;
-
- /* We keep i810 cards in a linked list */
- struct i810_card *next;
-
- /* The i810 has a certain amount of cross channel interaction
- so we use a single per card lock */
- spinlock_t lock;
-
- /* Control AC97 access serialization */
- spinlock_t ac97_lock;
-
- /* PCI device stuff */
- struct pci_dev * pci_dev;
- u16 pci_id;
- u16 pci_id_internal; /* used to access card_cap[] */
-#ifdef CONFIG_PM
- u16 pm_suspended;
- int pm_saved_mixer_settings[SOUND_MIXER_NRDEVICES][NR_AC97];
-#endif
- /* soundcore stuff */
- int dev_audio;
-
- /* structures for abstraction of hardware facilities, codecs, banks and channels*/
- u16 ac97_id_map[NR_AC97];
- struct ac97_codec *ac97_codec[NR_AC97];
- struct i810_state *states[NR_HW_CH];
- struct i810_channel *channel; /* 1:1 to states[] but diff. lifetime */
- dma_addr_t chandma;
-
- u16 ac97_features;
- u16 ac97_status;
- u16 channels;
-
- /* hardware resources */
- unsigned long ac97base;
- unsigned long iobase;
- u32 irq;
-
- unsigned long ac97base_mmio_phys;
- unsigned long iobase_mmio_phys;
- u_int8_t __iomem *ac97base_mmio;
- u_int8_t __iomem *iobase_mmio;
-
- int use_mmio;
-
- /* Function support */
- struct i810_channel *(*alloc_pcm_channel)(struct i810_card *);
- struct i810_channel *(*alloc_rec_pcm_channel)(struct i810_card *);
- struct i810_channel *(*alloc_rec_mic_channel)(struct i810_card *);
- void (*free_pcm_channel)(struct i810_card *, int chan);
-
- /* We have a *very* long init time possibly, so use this to block */
- /* attempts to open our devices before we are ready (stops oops'es) */
- int initializing;
-};
-
-/* extract register offset from codec struct */
-#define IO_REG_OFF(codec) (((struct i810_card *) codec->private_data)->ac97_id_map[codec->id])
-
-#define I810_IOREAD(size, type, card, off) \
-({ \
- type val; \
- if (card->use_mmio) \
- val=read##size(card->iobase_mmio+off); \
- else \
- val=in##size(card->iobase+off); \
- val; \
-})
-
-#define I810_IOREADL(card, off) I810_IOREAD(l, u32, card, off)
-#define I810_IOREADW(card, off) I810_IOREAD(w, u16, card, off)
-#define I810_IOREADB(card, off) I810_IOREAD(b, u8, card, off)
-
-#define I810_IOWRITE(size, val, card, off) \
-({ \
- if (card->use_mmio) \
- write##size(val, card->iobase_mmio+off); \
- else \
- out##size(val, card->iobase+off); \
-})
-
-#define I810_IOWRITEL(val, card, off) I810_IOWRITE(l, val, card, off)
-#define I810_IOWRITEW(val, card, off) I810_IOWRITE(w, val, card, off)
-#define I810_IOWRITEB(val, card, off) I810_IOWRITE(b, val, card, off)
-
-#define GET_CIV(card, port) MODULOP2(I810_IOREADB((card), (port) + OFF_CIV), SG_LEN)
-#define GET_LVI(card, port) MODULOP2(I810_IOREADB((card), (port) + OFF_LVI), SG_LEN)
-
-/* set LVI from CIV */
-#define CIV_TO_LVI(card, port, off) \
- I810_IOWRITEB(MODULOP2(GET_CIV((card), (port)) + (off), SG_LEN), (card), (port) + OFF_LVI)
-
-static struct ac97_quirk ac97_quirks[] __devinitdata = {
- {
- .vendor = 0x0e11,
- .device = 0x00b8,
- .name = "Compaq Evo D510C",
- .type = AC97_TUNE_HP_ONLY
- },
- {
- .vendor = 0x1028,
- .device = 0x00d8,
- .name = "Dell Precision 530", /* AD1885 */
- .type = AC97_TUNE_HP_ONLY
- },
- {
- .vendor = 0x1028,
- .device = 0x0126,
- .name = "Dell Optiplex GX260", /* AD1981A */
- .type = AC97_TUNE_HP_ONLY
- },
- {
- .vendor = 0x1028,
- .device = 0x012d,
- .name = "Dell Precision 450", /* AD1981B*/
- .type = AC97_TUNE_HP_ONLY
- },
- { /* FIXME: which codec? */
- .vendor = 0x103c,
- .device = 0x00c3,
- .name = "Hewlett-Packard onboard",
- .type = AC97_TUNE_HP_ONLY
- },
- {
- .vendor = 0x103c,
- .device = 0x12f1,
- .name = "HP xw8200", /* AD1981B*/
- .type = AC97_TUNE_HP_ONLY
- },
- {
- .vendor = 0x103c,
- .device = 0x3008,
- .name = "HP xw4200", /* AD1981B*/
- .type = AC97_TUNE_HP_ONLY
- },
- {
- .vendor = 0x10f1,
- .device = 0x2665,
- .name = "Fujitsu-Siemens Celsius", /* AD1981? */
- .type = AC97_TUNE_HP_ONLY
- },
- {
- .vendor = 0x10f1,
- .device = 0x2885,
- .name = "AMD64 Mobo", /* ALC650 */
- .type = AC97_TUNE_HP_ONLY
- },
- {
- .vendor = 0x110a,
- .device = 0x0056,
- .name = "Fujitsu-Siemens Scenic", /* AD1981? */
- .type = AC97_TUNE_HP_ONLY
- },
- {
- .vendor = 0x11d4,
- .device = 0x5375,
- .name = "ADI AD1985 (discrete)",
- .type = AC97_TUNE_HP_ONLY
- },
- {
- .vendor = 0x1462,
- .device = 0x5470,
- .name = "MSI P4 ATX 645 Ultra",
- .type = AC97_TUNE_HP_ONLY
- },
- {
- .vendor = 0x1734,
- .device = 0x0088,
- .name = "Fujitsu-Siemens D1522", /* AD1981 */
- .type = AC97_TUNE_HP_ONLY
- },
- {
- .vendor = 0x8086,
- .device = 0x4856,
- .name = "Intel D845WN (82801BA)",
- .type = AC97_TUNE_SWAP_HP
- },
- {
- .vendor = 0x8086,
- .device = 0x4d44,
- .name = "Intel D850EMV2", /* AD1885 */
- .type = AC97_TUNE_HP_ONLY
- },
- {
- .vendor = 0x8086,
- .device = 0x4d56,
- .name = "Intel ICH/AD1885",
- .type = AC97_TUNE_HP_ONLY
- },
- {
- .vendor = 0x1028,
- .device = 0x012d,
- .name = "Dell Precision 450", /* AD1981B*/
- .type = AC97_TUNE_HP_ONLY
- },
- {
- .vendor = 0x103c,
- .device = 0x3008,
- .name = "HP xw4200", /* AD1981B*/
- .type = AC97_TUNE_HP_ONLY
- },
- {
- .vendor = 0x103c,
- .device = 0x12f1,
- .name = "HP xw8200", /* AD1981B*/
- .type = AC97_TUNE_HP_ONLY
- },
- { } /* terminator */
-};
-
-static struct i810_card *devs = NULL;
-
-static int i810_open_mixdev(struct inode *inode, struct file *file);
-static int i810_ioctl_mixdev(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg);
-static u16 i810_ac97_get(struct ac97_codec *dev, u8 reg);
-static void i810_ac97_set(struct ac97_codec *dev, u8 reg, u16 data);
-static u16 i810_ac97_get_mmio(struct ac97_codec *dev, u8 reg);
-static void i810_ac97_set_mmio(struct ac97_codec *dev, u8 reg, u16 data);
-static u16 i810_ac97_get_io(struct ac97_codec *dev, u8 reg);
-static void i810_ac97_set_io(struct ac97_codec *dev, u8 reg, u16 data);
-
-static struct i810_channel *i810_alloc_pcm_channel(struct i810_card *card)
-{
- if(card->channel[1].used==1)
- return NULL;
- card->channel[1].used=1;
- return &card->channel[1];
-}
-
-static struct i810_channel *i810_alloc_rec_pcm_channel(struct i810_card *card)
-{
- if(card->channel[0].used==1)
- return NULL;
- card->channel[0].used=1;
- return &card->channel[0];
-}
-
-static struct i810_channel *i810_alloc_rec_mic_channel(struct i810_card *card)
-{
- if(card->channel[2].used==1)
- return NULL;
- card->channel[2].used=1;
- return &card->channel[2];
-}
-
-static void i810_free_pcm_channel(struct i810_card *card, int channel)
-{
- card->channel[channel].used=0;
-}
-
-static int i810_valid_spdif_rate ( struct ac97_codec *codec, int rate )
-{
- unsigned long id = 0L;
-
- id = (i810_ac97_get(codec, AC97_VENDOR_ID1) << 16);
- id |= i810_ac97_get(codec, AC97_VENDOR_ID2) & 0xffff;
-#ifdef DEBUG
- printk ( "i810_audio: codec = %s, codec_id = 0x%08lx\n", codec->name, id);
-#endif
- switch ( id ) {
- case 0x41445361: /* AD1886 */
- if (rate == 48000) {
- return 1;
- }
- break;
- default: /* all other codecs, until we know otherwiae */
- if (rate == 48000 || rate == 44100 || rate == 32000) {
- return 1;
- }
- break;
- }
- return (0);
-}
-
-/* i810_set_spdif_output
- *
- * Configure the S/PDIF output transmitter. When we turn on
- * S/PDIF, we turn off the analog output. This may not be
- * the right thing to do.
- *
- * Assumptions:
- * The DSP sample rate must already be set to a supported
- * S/PDIF rate (32kHz, 44.1kHz, or 48kHz) or we abort.
- */
-static int i810_set_spdif_output(struct i810_state *state, int slots, int rate)
-{
- int vol;
- int aud_reg;
- int r = 0;
- struct ac97_codec *codec = state->card->ac97_codec[0];
-
- if(!codec->codec_ops->digital) {
- state->card->ac97_status &= ~SPDIF_ON;
- } else {
- if ( slots == -1 ) { /* Turn off S/PDIF */
- codec->codec_ops->digital(codec, 0, 0, 0);
- /* If the volume wasn't muted before we turned on S/PDIF, unmute it */
- if ( !(state->card->ac97_status & VOL_MUTED) ) {
- aud_reg = i810_ac97_get(codec, AC97_MASTER_VOL_STEREO);
- i810_ac97_set(codec, AC97_MASTER_VOL_STEREO, (aud_reg & ~VOL_MUTED));
- }
- state->card->ac97_status &= ~(VOL_MUTED | SPDIF_ON);
- return 0;
- }
-
- vol = i810_ac97_get(codec, AC97_MASTER_VOL_STEREO);
- state->card->ac97_status = vol & VOL_MUTED;
-
- r = codec->codec_ops->digital(codec, slots, rate, 0);
-
- if(r)
- state->card->ac97_status |= SPDIF_ON;
- else
- state->card->ac97_status &= ~SPDIF_ON;
-
- /* Mute the analog output */
- /* Should this only mute the PCM volume??? */
- i810_ac97_set(codec, AC97_MASTER_VOL_STEREO, (vol | VOL_MUTED));
- }
- return r;
-}
-
-/* i810_set_dac_channels
- *
- * Configure the codec's multi-channel DACs
- *
- * The logic is backwards. Setting the bit to 1 turns off the DAC.
- *
- * What about the ICH? We currently configure it using the
- * SNDCTL_DSP_CHANNELS ioctl. If we're turnning on the DAC,
- * does that imply that we want the ICH set to support
- * these channels?
- *
- * TODO:
- * vailidate that the codec really supports these DACs
- * before turning them on.
- */
-static void i810_set_dac_channels(struct i810_state *state, int channel)
-{
- int aud_reg;
- struct ac97_codec *codec = state->card->ac97_codec[0];
-
- /* No codec, no setup */
-
- if(codec == NULL)
- return;
-
- aud_reg = i810_ac97_get(codec, AC97_EXTENDED_STATUS);
- aud_reg |= AC97_EA_PRI | AC97_EA_PRJ | AC97_EA_PRK;
- state->card->ac97_status &= ~(SURR_ON | CENTER_LFE_ON);
-
- switch ( channel ) {
- case 2: /* always enabled */
- break;
- case 4:
- aud_reg &= ~AC97_EA_PRJ;
- state->card->ac97_status |= SURR_ON;
- break;
- case 6:
- aud_reg &= ~(AC97_EA_PRJ | AC97_EA_PRI | AC97_EA_PRK);
- state->card->ac97_status |= SURR_ON | CENTER_LFE_ON;
- break;
- default:
- break;
- }
- i810_ac97_set(codec, AC97_EXTENDED_STATUS, aud_reg);
-
-}
-
-
-/* set playback sample rate */
-static unsigned int i810_set_dac_rate(struct i810_state * state, unsigned int rate)
-{
- struct dmabuf *dmabuf = &state->dmabuf;
- u32 new_rate;
- struct ac97_codec *codec=state->card->ac97_codec[0];
-
- if(!(state->card->ac97_features&0x0001))
- {
- dmabuf->rate = clocking;
-#ifdef DEBUG
- printk("Asked for %d Hz, but ac97_features says we only do %dHz. Sorry!\n",
- rate,clocking);
-#endif
- return clocking;
- }
-
- if (rate > 48000)
- rate = 48000;
- if (rate < 8000)
- rate = 8000;
- dmabuf->rate = rate;
-
- /*
- * Adjust for misclocked crap
- */
- rate = ( rate * clocking)/48000;
- if(strict_clocking && rate < 8000) {
- rate = 8000;
- dmabuf->rate = (rate * 48000)/clocking;
- }
-
- new_rate=ac97_set_dac_rate(codec, rate);
- if(new_rate != rate) {
- dmabuf->rate = (new_rate * 48000)/clocking;
- }
-#ifdef DEBUG
- printk("i810_audio: called i810_set_dac_rate : asked for %d, got %d\n", rate, dmabuf->rate);
-#endif
- rate = new_rate;
- return dmabuf->rate;
-}
-
-/* set recording sample rate */
-static unsigned int i810_set_adc_rate(struct i810_state * state, unsigned int rate)
-{
- struct dmabuf *dmabuf = &state->dmabuf;
- u32 new_rate;
- struct ac97_codec *codec=state->card->ac97_codec[0];
-
- if(!(state->card->ac97_features&0x0001))
- {
- dmabuf->rate = clocking;
- return clocking;
- }
-
- if (rate > 48000)
- rate = 48000;
- if (rate < 8000)
- rate = 8000;
- dmabuf->rate = rate;
-
- /*
- * Adjust for misclocked crap
- */
-
- rate = ( rate * clocking)/48000;
- if(strict_clocking && rate < 8000) {
- rate = 8000;
- dmabuf->rate = (rate * 48000)/clocking;
- }
-
- new_rate = ac97_set_adc_rate(codec, rate);
-
- if(new_rate != rate) {
- dmabuf->rate = (new_rate * 48000)/clocking;
- rate = new_rate;
- }
-#ifdef DEBUG
- printk("i810_audio: called i810_set_adc_rate : rate = %d/%d\n", dmabuf->rate, rate);
-#endif
- return dmabuf->rate;
-}
-
-/* get current playback/recording dma buffer pointer (byte offset from LBA),
- called with spinlock held! */
-
-static inline unsigned i810_get_dma_addr(struct i810_state *state, int rec)
-{
- struct dmabuf *dmabuf = &state->dmabuf;
- unsigned int civ, offset, port, port_picb, bytes = 2;
-
- if (!dmabuf->enable)
- return 0;
-
- if (rec)
- port = dmabuf->read_channel->port;
- else
- port = dmabuf->write_channel->port;
-
- if(state->card->pci_id == PCI_DEVICE_ID_SI_7012) {
- port_picb = port + OFF_SR;
- bytes = 1;
- } else
- port_picb = port + OFF_PICB;
-
- do {
- civ = GET_CIV(state->card, port);
- offset = I810_IOREADW(state->card, port_picb);
- /* Must have a delay here! */
- if(offset == 0)
- udelay(1);
- /* Reread both registers and make sure that that total
- * offset from the first reading to the second is 0.
- * There is an issue with SiS hardware where it will count
- * picb down to 0, then update civ to the next value,
- * then set the new picb to fragsize bytes. We can catch
- * it between the civ update and the picb update, making
- * it look as though we are 1 fragsize ahead of where we
- * are. The next to we get the address though, it will
- * be back in the right place, and we will suddenly think
- * we just went forward dmasize - fragsize bytes, causing
- * totally stupid *huge* dma overrun messages. We are
- * assuming that the 1us delay is more than long enough
- * that we won't have to worry about the chip still being
- * out of sync with reality ;-)
- */
- } while (civ != GET_CIV(state->card, port) || offset != I810_IOREADW(state->card, port_picb));
-
- return (((civ + 1) * dmabuf->fragsize - (bytes * offset))
- % dmabuf->dmasize);
-}
-
-/* Stop recording (lock held) */
-static inline void __stop_adc(struct i810_state *state)
-{
- struct dmabuf *dmabuf = &state->dmabuf;
- struct i810_card *card = state->card;
-
- dmabuf->enable &= ~ADC_RUNNING;
- I810_IOWRITEB(0, card, PI_CR);
- // wait for the card to acknowledge shutdown
- while( I810_IOREADB(card, PI_CR) != 0 ) ;
- // now clear any latent interrupt bits (like the halt bit)
- if(card->pci_id == PCI_DEVICE_ID_SI_7012)
- I810_IOWRITEB( I810_IOREADB(card, PI_PICB), card, PI_PICB );
- else
- I810_IOWRITEB( I810_IOREADB(card, PI_SR), card, PI_SR );
- I810_IOWRITEL( I810_IOREADL(card, GLOB_STA) & INT_PI, card, GLOB_STA);
-}
-
-static void stop_adc(struct i810_state *state)
-{
- struct i810_card *card = state->card;
- unsigned long flags;
-
- spin_lock_irqsave(&card->lock, flags);
- __stop_adc(state);
- spin_unlock_irqrestore(&card->lock, flags);
-}
-
-static inline void __start_adc(struct i810_state *state)
-{
- struct dmabuf *dmabuf = &state->dmabuf;
-
- if (dmabuf->count < dmabuf->dmasize && dmabuf->ready && !dmabuf->enable &&
- (dmabuf->trigger & PCM_ENABLE_INPUT)) {
- dmabuf->enable |= ADC_RUNNING;
- // Interrupt enable, LVI enable, DMA enable
- I810_IOWRITEB(0x10 | 0x04 | 0x01, state->card, PI_CR);
- }
-}
-
-static void start_adc(struct i810_state *state)
-{
- struct i810_card *card = state->card;
- unsigned long flags;
-
- spin_lock_irqsave(&card->lock, flags);
- __start_adc(state);
- spin_unlock_irqrestore(&card->lock, flags);
-}
-
-/* stop playback (lock held) */
-static inline void __stop_dac(struct i810_state *state)
-{
- struct dmabuf *dmabuf = &state->dmabuf;
- struct i810_card *card = state->card;
-
- dmabuf->enable &= ~DAC_RUNNING;
- I810_IOWRITEB(0, card, PO_CR);
- // wait for the card to acknowledge shutdown
- while( I810_IOREADB(card, PO_CR) != 0 ) ;
- // now clear any latent interrupt bits (like the halt bit)
- if(card->pci_id == PCI_DEVICE_ID_SI_7012)
- I810_IOWRITEB( I810_IOREADB(card, PO_PICB), card, PO_PICB );
- else
- I810_IOWRITEB( I810_IOREADB(card, PO_SR), card, PO_SR );
- I810_IOWRITEL( I810_IOREADL(card, GLOB_STA) & INT_PO, card, GLOB_STA);
-}
-
-static void stop_dac(struct i810_state *state)
-{
- struct i810_card *card = state->card;
- unsigned long flags;
-
- spin_lock_irqsave(&card->lock, flags);
- __stop_dac(state);
- spin_unlock_irqrestore(&card->lock, flags);
-}
-
-static inline void __start_dac(struct i810_state *state)
-{
- struct dmabuf *dmabuf = &state->dmabuf;
-
- if (dmabuf->count > 0 && dmabuf->ready && !dmabuf->enable &&
- (dmabuf->trigger & PCM_ENABLE_OUTPUT)) {
- dmabuf->enable |= DAC_RUNNING;
- // Interrupt enable, LVI enable, DMA enable
- I810_IOWRITEB(0x10 | 0x04 | 0x01, state->card, PO_CR);
- }
-}
-static void start_dac(struct i810_state *state)
-{
- struct i810_card *card = state->card;
- unsigned long flags;
-
- spin_lock_irqsave(&card->lock, flags);
- __start_dac(state);
- spin_unlock_irqrestore(&card->lock, flags);
-}
-
-#define DMABUF_DEFAULTORDER (16-PAGE_SHIFT)
-#define DMABUF_MINORDER 1
-
-/* allocate DMA buffer, playback and recording buffer should be allocated separately */
-static int alloc_dmabuf(struct i810_state *state)
-{
- struct dmabuf *dmabuf = &state->dmabuf;
- void *rawbuf= NULL;
- int order, size;
- struct page *page, *pend;
-
- /* If we don't have any oss frag params, then use our default ones */
- if(dmabuf->ossmaxfrags == 0)
- dmabuf->ossmaxfrags = 4;
- if(dmabuf->ossfragsize == 0)
- dmabuf->ossfragsize = (PAGE_SIZE<<DMABUF_DEFAULTORDER)/dmabuf->ossmaxfrags;
- size = dmabuf->ossfragsize * dmabuf->ossmaxfrags;
-
- if(dmabuf->rawbuf && (PAGE_SIZE << dmabuf->buforder) == size)
- return 0;
- /* alloc enough to satisfy the oss params */
- for (order = DMABUF_DEFAULTORDER; order >= DMABUF_MINORDER; order--) {
- if ( (PAGE_SIZE<<order) > size )
- continue;
- if ((rawbuf = pci_alloc_consistent(state->card->pci_dev,
- PAGE_SIZE << order,
- &dmabuf->dma_handle)))
- break;
- }
- if (!rawbuf)
- return -ENOMEM;
-
-
-#ifdef DEBUG
- printk("i810_audio: allocated %ld (order = %d) bytes at %p\n",
- PAGE_SIZE << order, order, rawbuf);
-#endif
-
- dmabuf->ready = dmabuf->mapped = 0;
- dmabuf->rawbuf = rawbuf;
- dmabuf->buforder = order;
-
- /* now mark the pages as reserved; otherwise remap_pfn_range doesn't do what we want */
- pend = virt_to_page(rawbuf + (PAGE_SIZE << order) - 1);
- for (page = virt_to_page(rawbuf); page <= pend; page++)
- SetPageReserved(page);
-
- return 0;
-}
-
-/* free DMA buffer */
-static void dealloc_dmabuf(struct i810_state *state)
-{
- struct dmabuf *dmabuf = &state->dmabuf;
- struct page *page, *pend;
-
- if (dmabuf->rawbuf) {
- /* undo marking the pages as reserved */
- pend = virt_to_page(dmabuf->rawbuf + (PAGE_SIZE << dmabuf->buforder) - 1);
- for (page = virt_to_page(dmabuf->rawbuf); page <= pend; page++)
- ClearPageReserved(page);
- pci_free_consistent(state->card->pci_dev, PAGE_SIZE << dmabuf->buforder,
- dmabuf->rawbuf, dmabuf->dma_handle);
- }
- dmabuf->rawbuf = NULL;
- dmabuf->mapped = dmabuf->ready = 0;
-}
-
-static int prog_dmabuf(struct i810_state *state, unsigned rec)
-{
- struct dmabuf *dmabuf = &state->dmabuf;
- struct i810_channel *c;
- struct sg_item *sg;
- unsigned long flags;
- int ret;
- unsigned fragint;
- int i;
-
- spin_lock_irqsave(&state->card->lock, flags);
- if(dmabuf->enable & DAC_RUNNING)
- __stop_dac(state);
- if(dmabuf->enable & ADC_RUNNING)
- __stop_adc(state);
- dmabuf->total_bytes = 0;
- dmabuf->count = dmabuf->error = 0;
- dmabuf->swptr = dmabuf->hwptr = 0;
- spin_unlock_irqrestore(&state->card->lock, flags);
-
- /* allocate DMA buffer, let alloc_dmabuf determine if we are already
- * allocated well enough or if we should replace the current buffer
- * (assuming one is already allocated, if it isn't, then allocate it).
- */
- if ((ret = alloc_dmabuf(state)))
- return ret;
-
- /* FIXME: figure out all this OSS fragment stuff */
- /* I did, it now does what it should according to the OSS API. DL */
- /* We may not have realloced our dmabuf, but the fragment size to
- * fragment number ratio may have changed, so go ahead and reprogram
- * things
- */
- dmabuf->dmasize = PAGE_SIZE << dmabuf->buforder;
- dmabuf->numfrag = SG_LEN;
- dmabuf->fragsize = dmabuf->dmasize/dmabuf->numfrag;
- dmabuf->fragsamples = dmabuf->fragsize >> 1;
- dmabuf->fragshift = ffs(dmabuf->fragsize) - 1;
- dmabuf->userfragsize = dmabuf->ossfragsize;
- dmabuf->userfrags = dmabuf->dmasize/dmabuf->ossfragsize;
-
- memset(dmabuf->rawbuf, 0, dmabuf->dmasize);
-
- if(dmabuf->ossmaxfrags == 4) {
- fragint = 8;
- } else if (dmabuf->ossmaxfrags == 8) {
- fragint = 4;
- } else if (dmabuf->ossmaxfrags == 16) {
- fragint = 2;
- } else {
- fragint = 1;
- }
- /*
- * Now set up the ring
- */
- if(dmabuf->read_channel)
- c = dmabuf->read_channel;
- else
- c = dmabuf->write_channel;
- while(c != NULL) {
- sg=&c->sg[0];
- /*
- * Load up 32 sg entries and take an interrupt at half
- * way (we might want more interrupts later..)
- */
-
- for(i=0;i<dmabuf->numfrag;i++)
- {
- sg->busaddr=(u32)dmabuf->dma_handle+dmabuf->fragsize*i;
- // the card will always be doing 16bit stereo
- sg->control=dmabuf->fragsamples;
- if(state->card->pci_id == PCI_DEVICE_ID_SI_7012)
- sg->control <<= 1;
- sg->control|=CON_BUFPAD;
- // set us up to get IOC interrupts as often as needed to
- // satisfy numfrag requirements, no more
- if( ((i+1) % fragint) == 0) {
- sg->control|=CON_IOC;
- }
- sg++;
- }
- spin_lock_irqsave(&state->card->lock, flags);
- I810_IOWRITEB(2, state->card, c->port+OFF_CR); /* reset DMA machine */
- while( I810_IOREADB(state->card, c->port+OFF_CR) & 0x02 ) ;
- I810_IOWRITEL((u32)state->card->chandma +
- c->num*sizeof(struct i810_channel),
- state->card, c->port+OFF_BDBAR);
- CIV_TO_LVI(state->card, c->port, 0);
-
- spin_unlock_irqrestore(&state->card->lock, flags);
-
- if(c != dmabuf->write_channel)
- c = dmabuf->write_channel;
- else
- c = NULL;
- }
-
- /* set the ready flag for the dma buffer */
- dmabuf->ready = 1;
-
-#ifdef DEBUG
- printk("i810_audio: prog_dmabuf, sample rate = %d, format = %d,\n\tnumfrag = %d, "
- "fragsize = %d dmasize = %d\n",
- dmabuf->rate, dmabuf->fmt, dmabuf->numfrag,
- dmabuf->fragsize, dmabuf->dmasize);
-#endif
-
- return 0;
-}
-
-static void __i810_update_lvi(struct i810_state *state, int rec)
-{
- struct dmabuf *dmabuf = &state->dmabuf;
- int x, port;
- int trigger;
- int count, fragsize;
- void (*start)(struct i810_state *);
-
- count = dmabuf->count;
- if (rec) {
- port = dmabuf->read_channel->port;
- trigger = PCM_ENABLE_INPUT;
- start = __start_adc;
- count = dmabuf->dmasize - count;
- } else {
- port = dmabuf->write_channel->port;
- trigger = PCM_ENABLE_OUTPUT;
- start = __start_dac;
- }
-
- /* Do not process partial fragments. */
- fragsize = dmabuf->fragsize;
- if (count < fragsize)
- return;
-
- /* if we are currently stopped, then our CIV is actually set to our
- * *last* sg segment and we are ready to wrap to the next. However,
- * if we set our LVI to the last sg segment, then it won't wrap to
- * the next sg segment, it won't even get a start. So, instead, when
- * we are stopped, we set both the LVI value and also we increment
- * the CIV value to the next sg segment to be played so that when
- * we call start, things will operate properly. Since the CIV can't
- * be written to directly for this purpose, we set the LVI to CIV + 1
- * temporarily. Once the engine has started we set the LVI to its
- * final value.
- */
- if (!dmabuf->enable && dmabuf->ready) {
- if (!(dmabuf->trigger & trigger))
- return;
-
- CIV_TO_LVI(state->card, port, 1);
-
- start(state);
- while (!(I810_IOREADB(state->card, port + OFF_CR) & ((1<<4) | (1<<2))))
- ;
- }
-
- /* MASKP2(swptr, fragsize) - 1 is the tail of our transfer */
- x = MODULOP2(MASKP2(dmabuf->swptr, fragsize) - 1, dmabuf->dmasize);
- x >>= dmabuf->fragshift;
- I810_IOWRITEB(x, state->card, port + OFF_LVI);
-}
-
-static void i810_update_lvi(struct i810_state *state, int rec)
-{
- struct dmabuf *dmabuf = &state->dmabuf;
- unsigned long flags;
-
- if(!dmabuf->ready)
- return;
- spin_lock_irqsave(&state->card->lock, flags);
- __i810_update_lvi(state, rec);
- spin_unlock_irqrestore(&state->card->lock, flags);
-}
-
-/* update buffer manangement pointers, especially, dmabuf->count and dmabuf->hwptr */
-static void i810_update_ptr(struct i810_state *state)
-{
- struct dmabuf *dmabuf = &state->dmabuf;
- unsigned hwptr;
- unsigned fragmask, dmamask;
- int diff;
-
- fragmask = MASKP2(~0, dmabuf->fragsize);
- dmamask = MODULOP2(~0, dmabuf->dmasize);
-
- /* error handling and process wake up for ADC */
- if (dmabuf->enable == ADC_RUNNING) {
- /* update hardware pointer */
- hwptr = i810_get_dma_addr(state, 1) & fragmask;
- diff = (hwptr - dmabuf->hwptr) & dmamask;
-#if defined(DEBUG_INTERRUPTS) || defined(DEBUG_MMAP)
- printk("ADC HWP %d,%d,%d\n", hwptr, dmabuf->hwptr, diff);
-#endif
- dmabuf->hwptr = hwptr;
- dmabuf->total_bytes += diff;
- dmabuf->count += diff;
- if (dmabuf->count > dmabuf->dmasize) {
- /* buffer underrun or buffer overrun */
- /* this is normal for the end of a read */
- /* only give an error if we went past the */
- /* last valid sg entry */
- if (GET_CIV(state->card, PI_BASE) !=
- GET_LVI(state->card, PI_BASE)) {
- printk(KERN_WARNING "i810_audio: DMA overrun on read\n");
- dmabuf->error++;
- }
- }
- if (diff)
- wake_up(&dmabuf->wait);
- }
- /* error handling and process wake up for DAC */
- if (dmabuf->enable == DAC_RUNNING) {
- /* update hardware pointer */
- hwptr = i810_get_dma_addr(state, 0) & fragmask;
- diff = (hwptr - dmabuf->hwptr) & dmamask;
-#if defined(DEBUG_INTERRUPTS) || defined(DEBUG_MMAP)
- printk("DAC HWP %d,%d,%d\n", hwptr, dmabuf->hwptr, diff);
-#endif
- dmabuf->hwptr = hwptr;
- dmabuf->total_bytes += diff;
- dmabuf->count -= diff;
- if (dmabuf->count < 0) {
- /* buffer underrun or buffer overrun */
- /* this is normal for the end of a write */
- /* only give an error if we went past the */
- /* last valid sg entry */
- if (GET_CIV(state->card, PO_BASE) !=
- GET_LVI(state->card, PO_BASE)) {
- printk(KERN_WARNING "i810_audio: DMA overrun on write\n");
- printk("i810_audio: CIV %d, LVI %d, hwptr %x, "
- "count %d\n",
- GET_CIV(state->card, PO_BASE),
- GET_LVI(state->card, PO_BASE),
- dmabuf->hwptr, dmabuf->count);
- dmabuf->error++;
- }
- }
- if (diff)
- wake_up(&dmabuf->wait);
- }
-}
-
-static inline int i810_get_free_write_space(struct i810_state *state)
-{
- struct dmabuf *dmabuf = &state->dmabuf;
- int free;
-
- i810_update_ptr(state);
- // catch underruns during playback
- if (dmabuf->count < 0) {
- dmabuf->count = 0;
- dmabuf->swptr = dmabuf->hwptr;
- }
- free = dmabuf->dmasize - dmabuf->count;
- if(free < 0)
- return(0);
- return(free);
-}
-
-static inline int i810_get_available_read_data(struct i810_state *state)
-{
- struct dmabuf *dmabuf = &state->dmabuf;
- int avail;
-
- i810_update_ptr(state);
- // catch overruns during record
- if (dmabuf->count > dmabuf->dmasize) {
- dmabuf->count = dmabuf->dmasize;
- dmabuf->swptr = dmabuf->hwptr;
- }
- avail = dmabuf->count;
- if(avail < 0)
- return(0);
- return(avail);
-}
-
-static inline void fill_partial_frag(struct dmabuf *dmabuf)
-{
- unsigned fragsize;
- unsigned swptr, len;
-
- fragsize = dmabuf->fragsize;
- swptr = dmabuf->swptr;
- len = fragsize - MODULOP2(dmabuf->swptr, fragsize);
- if (len == fragsize)
- return;
-
- memset(dmabuf->rawbuf + swptr, '\0', len);
- dmabuf->swptr = MODULOP2(swptr + len, dmabuf->dmasize);
- dmabuf->count += len;
-}
-
-static int drain_dac(struct i810_state *state, int signals_allowed)
-{
- DECLARE_WAITQUEUE(wait, current);
- struct dmabuf *dmabuf = &state->dmabuf;
- unsigned long flags;
- unsigned long tmo;
- int count;
-
- if (!dmabuf->ready)
- return 0;
- if(dmabuf->mapped) {
- stop_dac(state);
- return 0;
- }
-
- spin_lock_irqsave(&state->card->lock, flags);
-
- fill_partial_frag(dmabuf);
-
- /*
- * This will make sure that our LVI is correct, that our
- * pointer is updated, and that the DAC is running. We
- * have to force the setting of dmabuf->trigger to avoid
- * any possible deadlocks.
- */
- dmabuf->trigger = PCM_ENABLE_OUTPUT;
- __i810_update_lvi(state, 0);
-
- spin_unlock_irqrestore(&state->card->lock, flags);
-
- add_wait_queue(&dmabuf->wait, &wait);
- for (;;) {
-
- spin_lock_irqsave(&state->card->lock, flags);
- i810_update_ptr(state);
- count = dmabuf->count;
-
- /* It seems that we have to set the current state to
- * TASK_INTERRUPTIBLE every time to make the process
- * really go to sleep. This also has to be *after* the
- * update_ptr() call because update_ptr is likely to
- * do a wake_up() which will unset this before we ever
- * try to sleep, resuling in a tight loop in this code
- * instead of actually sleeping and waiting for an
- * interrupt to wake us up!
- */
- __set_current_state(signals_allowed ?
- TASK_INTERRUPTIBLE : TASK_UNINTERRUPTIBLE);
- spin_unlock_irqrestore(&state->card->lock, flags);
-
- if (count <= 0)
- break;
-
- if (signal_pending(current) && signals_allowed) {
- break;
- }
-
- /*
- * set the timeout to significantly longer than it *should*
- * take for the DAC to drain the DMA buffer
- */
- tmo = (count * HZ) / (dmabuf->rate);
- if (!schedule_timeout(tmo >= 2 ? tmo : 2)){
- printk(KERN_ERR "i810_audio: drain_dac, dma timeout?\n");
- count = 0;
- break;
- }
- }
- set_current_state(TASK_RUNNING);
- remove_wait_queue(&dmabuf->wait, &wait);
- if(count > 0 && signal_pending(current) && signals_allowed)
- return -ERESTARTSYS;
- stop_dac(state);
- return 0;
-}
-
-static void i810_channel_interrupt(struct i810_card *card)
-{
- int i, count;
-
-#ifdef DEBUG_INTERRUPTS
- printk("CHANNEL ");
-#endif
- for(i=0;i<NR_HW_CH;i++)
- {
- struct i810_state *state = card->states[i];
- struct i810_channel *c;
- struct dmabuf *dmabuf;
- unsigned long port;
- u16 status;
-
- if(!state)
- continue;
- if(!state->dmabuf.ready)
- continue;
- dmabuf = &state->dmabuf;
- if(dmabuf->enable & DAC_RUNNING) {
- c=dmabuf->write_channel;
- } else if(dmabuf->enable & ADC_RUNNING) {
- c=dmabuf->read_channel;
- } else /* This can occur going from R/W to close */
- continue;
-
- port = c->port;
-
- if(card->pci_id == PCI_DEVICE_ID_SI_7012)
- status = I810_IOREADW(card, port + OFF_PICB);
- else
- status = I810_IOREADW(card, port + OFF_SR);
-
-#ifdef DEBUG_INTERRUPTS
- printk("NUM %d PORT %X IRQ ( ST%d ", c->num, c->port, status);
-#endif
- if(status & DMA_INT_COMPLETE)
- {
- /* only wake_up() waiters if this interrupt signals
- * us being beyond a userfragsize of data open or
- * available, and i810_update_ptr() does that for
- * us
- */
- i810_update_ptr(state);
-#ifdef DEBUG_INTERRUPTS
- printk("COMP %d ", dmabuf->hwptr /
- dmabuf->fragsize);
-#endif
- }
- if(status & (DMA_INT_LVI | DMA_INT_DCH))
- {
- /* wake_up() unconditionally on LVI and DCH */
- i810_update_ptr(state);
- wake_up(&dmabuf->wait);
-#ifdef DEBUG_INTERRUPTS
- if(status & DMA_INT_LVI)
- printk("LVI ");
- if(status & DMA_INT_DCH)
- printk("DCH -");
-#endif
- count = dmabuf->count;
- if(dmabuf->enable & ADC_RUNNING)
- count = dmabuf->dmasize - count;
- if (count >= (int)dmabuf->fragsize) {
- I810_IOWRITEB(I810_IOREADB(card, port+OFF_CR) | 1, card, port+OFF_CR);
-#ifdef DEBUG_INTERRUPTS
- printk(" CONTINUE ");
-#endif
- } else {
- if (dmabuf->enable & DAC_RUNNING)
- __stop_dac(state);
- if (dmabuf->enable & ADC_RUNNING)
- __stop_adc(state);
- dmabuf->enable = 0;
-#ifdef DEBUG_INTERRUPTS
- printk(" STOP ");
-#endif
- }
- }
- if(card->pci_id == PCI_DEVICE_ID_SI_7012)
- I810_IOWRITEW(status & DMA_INT_MASK, card, port + OFF_PICB);
- else
- I810_IOWRITEW(status & DMA_INT_MASK, card, port + OFF_SR);
- }
-#ifdef DEBUG_INTERRUPTS
- printk(")\n");
-#endif
-}
-
-static irqreturn_t i810_interrupt(int irq, void *dev_id)
-{
- struct i810_card *card = dev_id;
- u32 status;
-
- spin_lock(&card->lock);
-
- status = I810_IOREADL(card, GLOB_STA);
-
- if(!(status & INT_MASK))
- {
- spin_unlock(&card->lock);
- return IRQ_NONE; /* not for us */
- }
-
- if(status & (INT_PO|INT_PI|INT_MC))
- i810_channel_interrupt(card);
-
- /* clear 'em */
- I810_IOWRITEL(status & INT_MASK, card, GLOB_STA);
- spin_unlock(&card->lock);
- return IRQ_HANDLED;
-}
-
-/* in this loop, dmabuf.count signifies the amount of data that is
- waiting to be copied to the user's buffer. It is filled by the dma
- machine and drained by this loop. */
-
-static ssize_t i810_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos)
-{
- struct i810_state *state = (struct i810_state *)file->private_data;
- struct i810_card *card=state ? state->card : NULL;
- struct dmabuf *dmabuf = &state->dmabuf;
- ssize_t ret;
- unsigned long flags;
- unsigned int swptr;
- int cnt;
- int pending;
- DECLARE_WAITQUEUE(waita, current);
-
-#ifdef DEBUG2
- printk("i810_audio: i810_read called, count = %d\n", count);
-#endif
-
- if (dmabuf->mapped)
- return -ENXIO;
- if (dmabuf->enable & DAC_RUNNING)
- return -ENODEV;
- if (!dmabuf->read_channel) {
- dmabuf->ready = 0;
- dmabuf->read_channel = card->alloc_rec_pcm_channel(card);
- if (!dmabuf->read_channel) {
- return -EBUSY;
- }
- }
- if (!dmabuf->ready && (ret = prog_dmabuf(state, 1)))
- return ret;
- if (!access_ok(VERIFY_WRITE, buffer, count))
- return -EFAULT;
- ret = 0;
-
- pending = 0;
-
- add_wait_queue(&dmabuf->wait, &waita);
- while (count > 0) {
- set_current_state(TASK_INTERRUPTIBLE);
- spin_lock_irqsave(&card->lock, flags);
- if (PM_SUSPENDED(card)) {
- spin_unlock_irqrestore(&card->lock, flags);
- schedule();
- if (signal_pending(current)) {
- if (!ret) ret = -EAGAIN;
- break;
- }
- continue;
- }
- cnt = i810_get_available_read_data(state);
- swptr = dmabuf->swptr;
- // this is to make the copy_to_user simpler below
- if(cnt > (dmabuf->dmasize - swptr))
- cnt = dmabuf->dmasize - swptr;
- spin_unlock_irqrestore(&card->lock, flags);
-
- if (cnt > count)
- cnt = count;
- if (cnt <= 0) {
- unsigned long tmo;
- /*
- * Don't let us deadlock. The ADC won't start if
- * dmabuf->trigger isn't set. A call to SETTRIGGER
- * could have turned it off after we set it to on
- * previously.
- */
- dmabuf->trigger = PCM_ENABLE_INPUT;
- /*
- * This does three things. Updates LVI to be correct,
- * makes sure the ADC is running, and updates the
- * hwptr.
- */
- i810_update_lvi(state,1);
- if (file->f_flags & O_NONBLOCK) {
- if (!ret) ret = -EAGAIN;
- goto done;
- }
- /* Set the timeout to how long it would take to fill
- * two of our buffers. If we haven't been woke up
- * by then, then we know something is wrong.
- */
- tmo = (dmabuf->dmasize * HZ * 2) / (dmabuf->rate * 4);
- /* There are two situations when sleep_on_timeout returns, one is when
- the interrupt is serviced correctly and the process is waked up by
- ISR ON TIME. Another is when timeout is expired, which means that
- either interrupt is NOT serviced correctly (pending interrupt) or it
- is TOO LATE for the process to be scheduled to run (scheduler latency)
- which results in a (potential) buffer overrun. And worse, there is
- NOTHING we can do to prevent it. */
- if (!schedule_timeout(tmo >= 2 ? tmo : 2)) {
-#ifdef DEBUG
- printk(KERN_ERR "i810_audio: recording schedule timeout, "
- "dmasz %u fragsz %u count %i hwptr %u swptr %u\n",
- dmabuf->dmasize, dmabuf->fragsize, dmabuf->count,
- dmabuf->hwptr, dmabuf->swptr);
-#endif
- /* a buffer overrun, we delay the recovery until next time the
- while loop begin and we REALLY have space to record */
- }
- if (signal_pending(current)) {
- ret = ret ? ret : -ERESTARTSYS;
- goto done;
- }
- continue;
- }
-
- if (copy_to_user(buffer, dmabuf->rawbuf + swptr, cnt)) {
- if (!ret) ret = -EFAULT;
- goto done;
- }
-
- swptr = MODULOP2(swptr + cnt, dmabuf->dmasize);
-
- spin_lock_irqsave(&card->lock, flags);
-
- if (PM_SUSPENDED(card)) {
- spin_unlock_irqrestore(&card->lock, flags);
- continue;
- }
- dmabuf->swptr = swptr;
- pending = dmabuf->count -= cnt;
- spin_unlock_irqrestore(&card->lock, flags);
-
- count -= cnt;
- buffer += cnt;
- ret += cnt;
- }
- done:
- pending = dmabuf->dmasize - pending;
- if (dmabuf->enable || pending >= dmabuf->userfragsize)
- i810_update_lvi(state, 1);
- set_current_state(TASK_RUNNING);
- remove_wait_queue(&dmabuf->wait, &waita);
-
- return ret;
-}
-
-/* in this loop, dmabuf.count signifies the amount of data that is waiting to be dma to
- the soundcard. it is drained by the dma machine and filled by this loop. */
-static ssize_t i810_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos)
-{
- struct i810_state *state = (struct i810_state *)file->private_data;
- struct i810_card *card=state ? state->card : NULL;
- struct dmabuf *dmabuf = &state->dmabuf;
- ssize_t ret;
- unsigned long flags;
- unsigned int swptr = 0;
- int pending;
- int cnt;
- DECLARE_WAITQUEUE(waita, current);
-
-#ifdef DEBUG2
- printk("i810_audio: i810_write called, count = %d\n", count);
-#endif
-
- if (dmabuf->mapped)
- return -ENXIO;
- if (dmabuf->enable & ADC_RUNNING)
- return -ENODEV;
- if (!dmabuf->write_channel) {
- dmabuf->ready = 0;
- dmabuf->write_channel = card->alloc_pcm_channel(card);
- if(!dmabuf->write_channel)
- return -EBUSY;
- }
- if (!dmabuf->ready && (ret = prog_dmabuf(state, 0)))
- return ret;
- if (!access_ok(VERIFY_READ, buffer, count))
- return -EFAULT;
- ret = 0;
-
- pending = 0;
-
- add_wait_queue(&dmabuf->wait, &waita);
- while (count > 0) {
- set_current_state(TASK_INTERRUPTIBLE);
- spin_lock_irqsave(&state->card->lock, flags);
- if (PM_SUSPENDED(card)) {
- spin_unlock_irqrestore(&card->lock, flags);
- schedule();
- if (signal_pending(current)) {
- if (!ret) ret = -EAGAIN;
- break;
- }
- continue;
- }
-
- cnt = i810_get_free_write_space(state);
- swptr = dmabuf->swptr;
- /* Bound the maximum size to how much we can copy to the
- * dma buffer before we hit the end. If we have more to
- * copy then it will get done in a second pass of this
- * loop starting from the beginning of the buffer.
- */
- if(cnt > (dmabuf->dmasize - swptr))
- cnt = dmabuf->dmasize - swptr;
- spin_unlock_irqrestore(&state->card->lock, flags);
-
-#ifdef DEBUG2
- printk(KERN_INFO "i810_audio: i810_write: %d bytes available space\n", cnt);
-#endif
- if (cnt > count)
- cnt = count;
- if (cnt <= 0) {
- unsigned long tmo;
- // There is data waiting to be played
- /*
- * Force the trigger setting since we would
- * deadlock with it set any other way
- */
- dmabuf->trigger = PCM_ENABLE_OUTPUT;
- i810_update_lvi(state,0);
- if (file->f_flags & O_NONBLOCK) {
- if (!ret) ret = -EAGAIN;
- goto ret;
- }
- /* Not strictly correct but works */
- tmo = (dmabuf->dmasize * HZ * 2) / (dmabuf->rate * 4);
- /* There are two situations when sleep_on_timeout returns, one is when
- the interrupt is serviced correctly and the process is waked up by
- ISR ON TIME. Another is when timeout is expired, which means that
- either interrupt is NOT serviced correctly (pending interrupt) or it
- is TOO LATE for the process to be scheduled to run (scheduler latency)
- which results in a (potential) buffer underrun. And worse, there is
- NOTHING we can do to prevent it. */
- if (!schedule_timeout(tmo >= 2 ? tmo : 2)) {
-#ifdef DEBUG
- printk(KERN_ERR "i810_audio: playback schedule timeout, "
- "dmasz %u fragsz %u count %i hwptr %u swptr %u\n",
- dmabuf->dmasize, dmabuf->fragsize, dmabuf->count,
- dmabuf->hwptr, dmabuf->swptr);
-#endif
- /* a buffer underrun, we delay the recovery until next time the
- while loop begin and we REALLY have data to play */
- //return ret;
- }
- if (signal_pending(current)) {
- if (!ret) ret = -ERESTARTSYS;
- goto ret;
- }
- continue;
- }
- if (copy_from_user(dmabuf->rawbuf+swptr,buffer,cnt)) {
- if (!ret) ret = -EFAULT;
- goto ret;
- }
-
- swptr = MODULOP2(swptr + cnt, dmabuf->dmasize);
-
- spin_lock_irqsave(&state->card->lock, flags);
- if (PM_SUSPENDED(card)) {
- spin_unlock_irqrestore(&card->lock, flags);
- continue;
- }
-
- dmabuf->swptr = swptr;
- pending = dmabuf->count += cnt;
-
- count -= cnt;
- buffer += cnt;
- ret += cnt;
- spin_unlock_irqrestore(&state->card->lock, flags);
- }
-ret:
- if (dmabuf->enable || pending >= dmabuf->userfragsize)
- i810_update_lvi(state, 0);
- set_current_state(TASK_RUNNING);
- remove_wait_queue(&dmabuf->wait, &waita);
-
- return ret;
-}
-
-/* No kernel lock - we have our own spinlock */
-static unsigned int i810_poll(struct file *file, struct poll_table_struct *wait)
-{
- struct i810_state *state = (struct i810_state *)file->private_data;
- struct dmabuf *dmabuf = &state->dmabuf;
- unsigned long flags;
- unsigned int mask = 0;
-
- if(!dmabuf->ready)
- return 0;
- poll_wait(file, &dmabuf->wait, wait);
- spin_lock_irqsave(&state->card->lock, flags);
- if (dmabuf->enable & ADC_RUNNING ||
- dmabuf->trigger & PCM_ENABLE_INPUT) {
- if (i810_get_available_read_data(state) >=
- (signed)dmabuf->userfragsize)
- mask |= POLLIN | POLLRDNORM;
- }
- if (dmabuf->enable & DAC_RUNNING ||
- dmabuf->trigger & PCM_ENABLE_OUTPUT) {
- if (i810_get_free_write_space(state) >=
- (signed)dmabuf->userfragsize)
- mask |= POLLOUT | POLLWRNORM;
- }
- spin_unlock_irqrestore(&state->card->lock, flags);
- return mask;
-}
-
-static int i810_mmap(struct file *file, struct vm_area_struct *vma)
-{
- struct i810_state *state = (struct i810_state *)file->private_data;
- struct dmabuf *dmabuf = &state->dmabuf;
- int ret = -EINVAL;
- unsigned long size;
-
- lock_kernel();
- if (vma->vm_flags & VM_WRITE) {
- if (!dmabuf->write_channel &&
- (dmabuf->write_channel =
- state->card->alloc_pcm_channel(state->card)) == NULL) {
- ret = -EBUSY;
- goto out;
- }
- }
- if (vma->vm_flags & VM_READ) {
- if (!dmabuf->read_channel &&
- (dmabuf->read_channel =
- state->card->alloc_rec_pcm_channel(state->card)) == NULL) {
- ret = -EBUSY;
- goto out;
- }
- }
- if ((ret = prog_dmabuf(state, 0)) != 0)
- goto out;
-
- ret = -EINVAL;
- if (vma->vm_pgoff != 0)
- goto out;
- size = vma->vm_end - vma->vm_start;
- if (size > (PAGE_SIZE << dmabuf->buforder))
- goto out;
- ret = -EAGAIN;
- if (remap_pfn_range(vma, vma->vm_start,
- virt_to_phys(dmabuf->rawbuf) >> PAGE_SHIFT,
- size, vma->vm_page_prot))
- goto out;
- dmabuf->mapped = 1;
- dmabuf->trigger = 0;
- ret = 0;
-#ifdef DEBUG_MMAP
- printk("i810_audio: mmap'ed %ld bytes of data space\n", size);
-#endif
-out:
- unlock_kernel();
- return ret;
-}
-
-static int i810_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
-{
- struct i810_state *state = (struct i810_state *)file->private_data;
- struct i810_channel *c = NULL;
- struct dmabuf *dmabuf = &state->dmabuf;
- unsigned long flags;
- audio_buf_info abinfo;
- count_info cinfo;
- unsigned int i_glob_cnt;
- int val = 0, ret;
- struct ac97_codec *codec = state->card->ac97_codec[0];
- void __user *argp = (void __user *)arg;
- int __user *p = argp;
-
-#ifdef DEBUG
- printk("i810_audio: i810_ioctl, arg=0x%x, cmd=", arg ? *p : 0);
-#endif
-
- switch (cmd)
- {
- case OSS_GETVERSION:
-#ifdef DEBUG
- printk("OSS_GETVERSION\n");
-#endif
- return put_user(SOUND_VERSION, p);
-
- case SNDCTL_DSP_RESET:
-#ifdef DEBUG
- printk("SNDCTL_DSP_RESET\n");
-#endif
- spin_lock_irqsave(&state->card->lock, flags);
- if (dmabuf->enable == DAC_RUNNING) {
- c = dmabuf->write_channel;
- __stop_dac(state);
- }
- if (dmabuf->enable == ADC_RUNNING) {
- c = dmabuf->read_channel;
- __stop_adc(state);
- }
- if (c != NULL) {
- I810_IOWRITEB(2, state->card, c->port+OFF_CR); /* reset DMA machine */
- while ( I810_IOREADB(state->card, c->port+OFF_CR) & 2 )
- cpu_relax();
- I810_IOWRITEL((u32)state->card->chandma +
- c->num*sizeof(struct i810_channel),
- state->card, c->port+OFF_BDBAR);
- CIV_TO_LVI(state->card, c->port, 0);
- }
-
- spin_unlock_irqrestore(&state->card->lock, flags);
- synchronize_irq(state->card->pci_dev->irq);
- dmabuf->ready = 0;
- dmabuf->swptr = dmabuf->hwptr = 0;
- dmabuf->count = dmabuf->total_bytes = 0;
- return 0;
-
- case SNDCTL_DSP_SYNC:
-#ifdef DEBUG
- printk("SNDCTL_DSP_SYNC\n");
-#endif
- if (dmabuf->enable != DAC_RUNNING || file->f_flags & O_NONBLOCK)
- return 0;
- if((val = drain_dac(state, 1)))
- return val;
- dmabuf->total_bytes = 0;
- return 0;
-
- case SNDCTL_DSP_SPEED: /* set smaple rate */
-#ifdef DEBUG
- printk("SNDCTL_DSP_SPEED\n");
-#endif
- if (get_user(val, p))
- return -EFAULT;
- if (val >= 0) {
- if (file->f_mode & FMODE_WRITE) {
- if ( (state->card->ac97_status & SPDIF_ON) ) { /* S/PDIF Enabled */
- /* AD1886 only supports 48000, need to check that */
- if ( i810_valid_spdif_rate ( codec, val ) ) {
- /* Set DAC rate */
- i810_set_spdif_output ( state, -1, 0 );
- stop_dac(state);
- dmabuf->ready = 0;
- spin_lock_irqsave(&state->card->lock, flags);
- i810_set_dac_rate(state, val);
- spin_unlock_irqrestore(&state->card->lock, flags);
- /* Set S/PDIF transmitter rate. */
- i810_set_spdif_output ( state, AC97_EA_SPSA_3_4, val );
- if ( ! (state->card->ac97_status & SPDIF_ON) ) {
- val = dmabuf->rate;
- }
- } else { /* Not a valid rate for S/PDIF, ignore it */
- val = dmabuf->rate;
- }
- } else {
- stop_dac(state);
- dmabuf->ready = 0;
- spin_lock_irqsave(&state->card->lock, flags);
- i810_set_dac_rate(state, val);
- spin_unlock_irqrestore(&state->card->lock, flags);
- }
- }
- if (file->f_mode & FMODE_READ) {
- stop_adc(state);
- dmabuf->ready = 0;
- spin_lock_irqsave(&state->card->lock, flags);
- i810_set_adc_rate(state, val);
- spin_unlock_irqrestore(&state->card->lock, flags);
- }
- }
- return put_user(dmabuf->rate, p);
-
- case SNDCTL_DSP_STEREO: /* set stereo or mono channel */
-#ifdef DEBUG
- printk("SNDCTL_DSP_STEREO\n");
-#endif
- if (dmabuf->enable & DAC_RUNNING) {
- stop_dac(state);
- }
- if (dmabuf->enable & ADC_RUNNING) {
- stop_adc(state);
- }
- return put_user(1, p);
-
- case SNDCTL_DSP_GETBLKSIZE:
- if (file->f_mode & FMODE_WRITE) {
- if (!dmabuf->ready && (val = prog_dmabuf(state, 0)))
- return val;
- }
- if (file->f_mode & FMODE_READ) {
- if (!dmabuf->ready && (val = prog_dmabuf(state, 1)))
- return val;
- }
-#ifdef DEBUG
- printk("SNDCTL_DSP_GETBLKSIZE %d\n", dmabuf->userfragsize);
-#endif
- return put_user(dmabuf->userfragsize, p);
-
- case SNDCTL_DSP_GETFMTS: /* Returns a mask of supported sample format*/
-#ifdef DEBUG
- printk("SNDCTL_DSP_GETFMTS\n");
-#endif
- return put_user(AFMT_S16_LE, p);
-
- case SNDCTL_DSP_SETFMT: /* Select sample format */
-#ifdef DEBUG
- printk("SNDCTL_DSP_SETFMT\n");
-#endif
- return put_user(AFMT_S16_LE, p);
-
- case SNDCTL_DSP_CHANNELS:
-#ifdef DEBUG
- printk("SNDCTL_DSP_CHANNELS\n");
-#endif
- if (get_user(val, p))
- return -EFAULT;
-
- if (val > 0) {
- if (dmabuf->enable & DAC_RUNNING) {
- stop_dac(state);
- }
- if (dmabuf->enable & ADC_RUNNING) {
- stop_adc(state);
- }
- } else {
- return put_user(state->card->channels, p);
- }
-
- /* ICH and ICH0 only support 2 channels */
- if ( state->card->pci_id == PCI_DEVICE_ID_INTEL_82801AA_5
- || state->card->pci_id == PCI_DEVICE_ID_INTEL_82801AB_5)
- return put_user(2, p);
-
- /* Multi-channel support was added with ICH2. Bits in */
- /* Global Status and Global Control register are now */
- /* used to indicate this. */
-
- i_glob_cnt = I810_IOREADL(state->card, GLOB_CNT);
-
- /* Current # of channels enabled */
- if ( i_glob_cnt & 0x0100000 )
- ret = 4;
- else if ( i_glob_cnt & 0x0200000 )
- ret = 6;
- else
- ret = 2;
-
- switch ( val ) {
- case 2: /* 2 channels is always supported */
- I810_IOWRITEL(i_glob_cnt & 0xffcfffff,
- state->card, GLOB_CNT);
- /* Do we need to change mixer settings???? */
- break;
- case 4: /* Supported on some chipsets, better check first */
- if ( state->card->channels >= 4 ) {
- I810_IOWRITEL((i_glob_cnt & 0xffcfffff) | 0x100000,
- state->card, GLOB_CNT);
- /* Do we need to change mixer settings??? */
- } else {
- val = ret;
- }
- break;
- case 6: /* Supported on some chipsets, better check first */
- if ( state->card->channels >= 6 ) {
- I810_IOWRITEL((i_glob_cnt & 0xffcfffff) | 0x200000,
- state->card, GLOB_CNT);
- /* Do we need to change mixer settings??? */
- } else {
- val = ret;
- }
- break;
- default: /* nothing else is ever supported by the chipset */
- val = ret;
- break;
- }
-
- return put_user(val, p);
-
- case SNDCTL_DSP_POST: /* the user has sent all data and is notifying us */
- /* we update the swptr to the end of the last sg segment then return */
-#ifdef DEBUG
- printk("SNDCTL_DSP_POST\n");
-#endif
- if(!dmabuf->ready || (dmabuf->enable != DAC_RUNNING))
- return 0;
- if((dmabuf->swptr % dmabuf->fragsize) != 0) {
- val = dmabuf->fragsize - (dmabuf->swptr % dmabuf->fragsize);
- dmabuf->swptr += val;
- dmabuf->count += val;
- }
- return 0;
-
- case SNDCTL_DSP_SUBDIVIDE:
- if (dmabuf->subdivision)
- return -EINVAL;
- if (get_user(val, p))
- return -EFAULT;
- if (val != 1 && val != 2 && val != 4)
- return -EINVAL;
-#ifdef DEBUG
- printk("SNDCTL_DSP_SUBDIVIDE %d\n", val);
-#endif
- dmabuf->subdivision = val;
- dmabuf->ready = 0;
- return 0;
-
- case SNDCTL_DSP_SETFRAGMENT:
- if (get_user(val, p))
- return -EFAULT;
-
- dmabuf->ossfragsize = 1<<(val & 0xffff);
- dmabuf->ossmaxfrags = (val >> 16) & 0xffff;
- if (!dmabuf->ossfragsize || !dmabuf->ossmaxfrags)
- return -EINVAL;
- /*
- * Bound the frag size into our allowed range of 256 - 4096
- */
- if (dmabuf->ossfragsize < 256)
- dmabuf->ossfragsize = 256;
- else if (dmabuf->ossfragsize > 4096)
- dmabuf->ossfragsize = 4096;
- /*
- * The numfrags could be something reasonable, or it could
- * be 0xffff meaning "Give me as much as possible". So,
- * we check the numfrags * fragsize doesn't exceed our
- * 64k buffer limit, nor is it less than our 8k minimum.
- * If it fails either one of these checks, then adjust the
- * number of fragments, not the size of them. It's OK if
- * our number of fragments doesn't equal 32 or anything
- * like our hardware based number now since we are using
- * a different frag count for the hardware. Before we get
- * into this though, bound the maxfrags to avoid overflow
- * issues. A reasonable bound would be 64k / 256 since our
- * maximum buffer size is 64k and our minimum frag size is
- * 256. On the other end, our minimum buffer size is 8k and
- * our maximum frag size is 4k, so the lower bound should
- * be 2.
- */
-
- if(dmabuf->ossmaxfrags > 256)
- dmabuf->ossmaxfrags = 256;
- else if (dmabuf->ossmaxfrags < 2)
- dmabuf->ossmaxfrags = 2;
-
- val = dmabuf->ossfragsize * dmabuf->ossmaxfrags;
- while (val < 8192) {
- val <<= 1;
- dmabuf->ossmaxfrags <<= 1;
- }
- while (val > 65536) {
- val >>= 1;
- dmabuf->ossmaxfrags >>= 1;
- }
- dmabuf->ready = 0;
-#ifdef DEBUG
- printk("SNDCTL_DSP_SETFRAGMENT 0x%x, %d, %d\n", val,
- dmabuf->ossfragsize, dmabuf->ossmaxfrags);
-#endif
-
- return 0;
-
- case SNDCTL_DSP_GETOSPACE:
- if (!(file->f_mode & FMODE_WRITE))
- return -EINVAL;
- if (!dmabuf->ready && (val = prog_dmabuf(state, 0)) != 0)
- return val;
- spin_lock_irqsave(&state->card->lock, flags);
- i810_update_ptr(state);
- abinfo.fragsize = dmabuf->userfragsize;
- abinfo.fragstotal = dmabuf->userfrags;
- if (dmabuf->mapped)
- abinfo.bytes = dmabuf->dmasize;
- else
- abinfo.bytes = i810_get_free_write_space(state);
- abinfo.fragments = abinfo.bytes / dmabuf->userfragsize;
- spin_unlock_irqrestore(&state->card->lock, flags);
-#if defined(DEBUG) || defined(DEBUG_MMAP)
- printk("SNDCTL_DSP_GETOSPACE %d, %d, %d, %d\n", abinfo.bytes,
- abinfo.fragsize, abinfo.fragments, abinfo.fragstotal);
-#endif
- return copy_to_user(argp, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
-
- case SNDCTL_DSP_GETOPTR:
- if (!(file->f_mode & FMODE_WRITE))
- return -EINVAL;
- if (!dmabuf->ready && (val = prog_dmabuf(state, 0)) != 0)
- return val;
- spin_lock_irqsave(&state->card->lock, flags);
- val = i810_get_free_write_space(state);
- cinfo.bytes = dmabuf->total_bytes;
- cinfo.ptr = dmabuf->hwptr;
- cinfo.blocks = val/dmabuf->userfragsize;
- if (dmabuf->mapped && (dmabuf->trigger & PCM_ENABLE_OUTPUT)) {
- dmabuf->count += val;
- dmabuf->swptr = (dmabuf->swptr + val) % dmabuf->dmasize;
- __i810_update_lvi(state, 0);
- }
- spin_unlock_irqrestore(&state->card->lock, flags);
-#if defined(DEBUG) || defined(DEBUG_MMAP)
- printk("SNDCTL_DSP_GETOPTR %d, %d, %d, %d\n", cinfo.bytes,
- cinfo.blocks, cinfo.ptr, dmabuf->count);
-#endif
- return copy_to_user(argp, &cinfo, sizeof(cinfo)) ? -EFAULT : 0;
-
- case SNDCTL_DSP_GETISPACE:
- if (!(file->f_mode & FMODE_READ))
- return -EINVAL;
- if (!dmabuf->ready && (val = prog_dmabuf(state, 1)) != 0)
- return val;
- spin_lock_irqsave(&state->card->lock, flags);
- abinfo.bytes = i810_get_available_read_data(state);
- abinfo.fragsize = dmabuf->userfragsize;
- abinfo.fragstotal = dmabuf->userfrags;
- abinfo.fragments = abinfo.bytes / dmabuf->userfragsize;
- spin_unlock_irqrestore(&state->card->lock, flags);
-#if defined(DEBUG) || defined(DEBUG_MMAP)
- printk("SNDCTL_DSP_GETISPACE %d, %d, %d, %d\n", abinfo.bytes,
- abinfo.fragsize, abinfo.fragments, abinfo.fragstotal);
-#endif
- return copy_to_user(argp, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
-
- case SNDCTL_DSP_GETIPTR:
- if (!(file->f_mode & FMODE_READ))
- return -EINVAL;
- if (!dmabuf->ready && (val = prog_dmabuf(state, 0)) != 0)
- return val;
- spin_lock_irqsave(&state->card->lock, flags);
- val = i810_get_available_read_data(state);
- cinfo.bytes = dmabuf->total_bytes;
- cinfo.blocks = val/dmabuf->userfragsize;
- cinfo.ptr = dmabuf->hwptr;
- if (dmabuf->mapped && (dmabuf->trigger & PCM_ENABLE_INPUT)) {
- dmabuf->count -= val;
- dmabuf->swptr = (dmabuf->swptr + val) % dmabuf->dmasize;
- __i810_update_lvi(state, 1);
- }
- spin_unlock_irqrestore(&state->card->lock, flags);
-#if defined(DEBUG) || defined(DEBUG_MMAP)
- printk("SNDCTL_DSP_GETIPTR %d, %d, %d, %d\n", cinfo.bytes,
- cinfo.blocks, cinfo.ptr, dmabuf->count);
-#endif
- return copy_to_user(argp, &cinfo, sizeof(cinfo)) ? -EFAULT : 0;
-
- case SNDCTL_DSP_NONBLOCK:
-#ifdef DEBUG
- printk("SNDCTL_DSP_NONBLOCK\n");
-#endif
- file->f_flags |= O_NONBLOCK;
- return 0;
-
- case SNDCTL_DSP_GETCAPS:
-#ifdef DEBUG
- printk("SNDCTL_DSP_GETCAPS\n");
-#endif
- return put_user(DSP_CAP_REALTIME|DSP_CAP_TRIGGER|DSP_CAP_MMAP|DSP_CAP_BIND,
- p);
-
- case SNDCTL_DSP_GETTRIGGER:
- val = 0;
-#ifdef DEBUG
- printk("SNDCTL_DSP_GETTRIGGER 0x%x\n", dmabuf->trigger);
-#endif
- return put_user(dmabuf->trigger, p);
-
- case SNDCTL_DSP_SETTRIGGER:
- if (get_user(val, p))
- return -EFAULT;
-#if defined(DEBUG) || defined(DEBUG_MMAP)
- printk("SNDCTL_DSP_SETTRIGGER 0x%x\n", val);
-#endif
- /* silently ignore invalid PCM_ENABLE_xxx bits,
- * like the other drivers do
- */
- if (!(file->f_mode & FMODE_READ ))
- val &= ~PCM_ENABLE_INPUT;
- if (!(file->f_mode & FMODE_WRITE ))
- val &= ~PCM_ENABLE_OUTPUT;
- if((file->f_mode & FMODE_READ) && !(val & PCM_ENABLE_INPUT) && dmabuf->enable == ADC_RUNNING) {
- stop_adc(state);
- }
- if((file->f_mode & FMODE_WRITE) && !(val & PCM_ENABLE_OUTPUT) && dmabuf->enable == DAC_RUNNING) {
- stop_dac(state);
- }
- dmabuf->trigger = val;
- if((val & PCM_ENABLE_OUTPUT) && !(dmabuf->enable & DAC_RUNNING)) {
- if (!dmabuf->write_channel) {
- dmabuf->ready = 0;
- dmabuf->write_channel = state->card->alloc_pcm_channel(state->card);
- if (!dmabuf->write_channel)
- return -EBUSY;
- }
- if (!dmabuf->ready && (ret = prog_dmabuf(state, 0)))
- return ret;
- if (dmabuf->mapped) {
- spin_lock_irqsave(&state->card->lock, flags);
- i810_update_ptr(state);
- dmabuf->count = 0;
- dmabuf->swptr = dmabuf->hwptr;
- dmabuf->count = i810_get_free_write_space(state);
- dmabuf->swptr = (dmabuf->swptr + dmabuf->count) % dmabuf->dmasize;
- spin_unlock_irqrestore(&state->card->lock, flags);
- }
- i810_update_lvi(state, 0);
- start_dac(state);
- }
- if((val & PCM_ENABLE_INPUT) && !(dmabuf->enable & ADC_RUNNING)) {
- if (!dmabuf->read_channel) {
- dmabuf->ready = 0;
- dmabuf->read_channel = state->card->alloc_rec_pcm_channel(state->card);
- if (!dmabuf->read_channel)
- return -EBUSY;
- }
- if (!dmabuf->ready && (ret = prog_dmabuf(state, 1)))
- return ret;
- if (dmabuf->mapped) {
- spin_lock_irqsave(&state->card->lock, flags);
- i810_update_ptr(state);
- dmabuf->swptr = dmabuf->hwptr;
- dmabuf->count = 0;
- spin_unlock_irqrestore(&state->card->lock, flags);
- }
- i810_update_lvi(state, 1);
- start_adc(state);
- }
- return 0;
-
- case SNDCTL_DSP_SETDUPLEX:
-#ifdef DEBUG
- printk("SNDCTL_DSP_SETDUPLEX\n");
-#endif
- return -EINVAL;
-
- case SNDCTL_DSP_GETODELAY:
- if (!(file->f_mode & FMODE_WRITE))
- return -EINVAL;
- spin_lock_irqsave(&state->card->lock, flags);
- i810_update_ptr(state);
- val = dmabuf->count;
- spin_unlock_irqrestore(&state->card->lock, flags);
-#ifdef DEBUG
- printk("SNDCTL_DSP_GETODELAY %d\n", dmabuf->count);
-#endif
- return put_user(val, p);
-
- case SOUND_PCM_READ_RATE:
-#ifdef DEBUG
- printk("SOUND_PCM_READ_RATE %d\n", dmabuf->rate);
-#endif
- return put_user(dmabuf->rate, p);
-
- case SOUND_PCM_READ_CHANNELS:
-#ifdef DEBUG
- printk("SOUND_PCM_READ_CHANNELS\n");
-#endif
- return put_user(2, p);
-
- case SOUND_PCM_READ_BITS:
-#ifdef DEBUG
- printk("SOUND_PCM_READ_BITS\n");
-#endif
- return put_user(AFMT_S16_LE, p);
-
- case SNDCTL_DSP_SETSPDIF: /* Set S/PDIF Control register */
-#ifdef DEBUG
- printk("SNDCTL_DSP_SETSPDIF\n");
-#endif
- if (get_user(val, p))
- return -EFAULT;
-
- /* Check to make sure the codec supports S/PDIF transmitter */
-
- if((state->card->ac97_features & 4)) {
- /* mask out the transmitter speed bits so the user can't set them */
- val &= ~0x3000;
-
- /* Add the current transmitter speed bits to the passed value */
- ret = i810_ac97_get(codec, AC97_SPDIF_CONTROL);
- val |= (ret & 0x3000);
-
- i810_ac97_set(codec, AC97_SPDIF_CONTROL, val);
- if(i810_ac97_get(codec, AC97_SPDIF_CONTROL) != val ) {
- printk(KERN_ERR "i810_audio: Unable to set S/PDIF configuration to 0x%04x.\n", val);
- return -EFAULT;
- }
- }
-#ifdef DEBUG
- else
- printk(KERN_WARNING "i810_audio: S/PDIF transmitter not avalible.\n");
-#endif
- return put_user(val, p);
-
- case SNDCTL_DSP_GETSPDIF: /* Get S/PDIF Control register */
-#ifdef DEBUG
- printk("SNDCTL_DSP_GETSPDIF\n");
-#endif
- if (get_user(val, p))
- return -EFAULT;
-
- /* Check to make sure the codec supports S/PDIF transmitter */
-
- if(!(state->card->ac97_features & 4)) {
-#ifdef DEBUG
- printk(KERN_WARNING "i810_audio: S/PDIF transmitter not avalible.\n");
-#endif
- val = 0;
- } else {
- val = i810_ac97_get(codec, AC97_SPDIF_CONTROL);
- }
- //return put_user((val & 0xcfff), p);
- return put_user(val, p);
-
- case SNDCTL_DSP_GETCHANNELMASK:
-#ifdef DEBUG
- printk("SNDCTL_DSP_GETCHANNELMASK\n");
-#endif
- if (get_user(val, p))
- return -EFAULT;
-
- /* Based on AC'97 DAC support, not ICH hardware */
- val = DSP_BIND_FRONT;
- if ( state->card->ac97_features & 0x0004 )
- val |= DSP_BIND_SPDIF;
-
- if ( state->card->ac97_features & 0x0080 )
- val |= DSP_BIND_SURR;
- if ( state->card->ac97_features & 0x0140 )
- val |= DSP_BIND_CENTER_LFE;
-
- return put_user(val, p);
-
- case SNDCTL_DSP_BIND_CHANNEL:
-#ifdef DEBUG
- printk("SNDCTL_DSP_BIND_CHANNEL\n");
-#endif
- if (get_user(val, p))
- return -EFAULT;
- if ( val == DSP_BIND_QUERY ) {
- val = DSP_BIND_FRONT; /* Always report this as being enabled */
- if ( state->card->ac97_status & SPDIF_ON )
- val |= DSP_BIND_SPDIF;
- else {
- if ( state->card->ac97_status & SURR_ON )
- val |= DSP_BIND_SURR;
- if ( state->card->ac97_status & CENTER_LFE_ON )
- val |= DSP_BIND_CENTER_LFE;
- }
- } else { /* Not a query, set it */
- if (!(file->f_mode & FMODE_WRITE))
- return -EINVAL;
- if ( dmabuf->enable == DAC_RUNNING ) {
- stop_dac(state);
- }
- if ( val & DSP_BIND_SPDIF ) { /* Turn on SPDIF */
- /* Ok, this should probably define what slots
- * to use. For now, we'll only set it to the
- * defaults:
- *
- * non multichannel codec maps to slots 3&4
- * 2 channel codec maps to slots 7&8
- * 4 channel codec maps to slots 6&9
- * 6 channel codec maps to slots 10&11
- *
- * there should be some way for the app to
- * select the slot assignment.
- */
-
- i810_set_spdif_output ( state, AC97_EA_SPSA_3_4, dmabuf->rate );
- if ( !(state->card->ac97_status & SPDIF_ON) )
- val &= ~DSP_BIND_SPDIF;
- } else {
- int mask;
- int channels;
-
- /* Turn off S/PDIF if it was on */
- if ( state->card->ac97_status & SPDIF_ON )
- i810_set_spdif_output ( state, -1, 0 );
-
- mask = val & (DSP_BIND_FRONT | DSP_BIND_SURR | DSP_BIND_CENTER_LFE);
- switch (mask) {
- case DSP_BIND_FRONT:
- channels = 2;
- break;
- case DSP_BIND_FRONT|DSP_BIND_SURR:
- channels = 4;
- break;
- case DSP_BIND_FRONT|DSP_BIND_SURR|DSP_BIND_CENTER_LFE:
- channels = 6;
- break;
- default:
- val = DSP_BIND_FRONT;
- channels = 2;
- break;
- }
- i810_set_dac_channels ( state, channels );
-
- /* check that they really got turned on */
- if (!(state->card->ac97_status & SURR_ON))
- val &= ~DSP_BIND_SURR;
- if (!(state->card->ac97_status & CENTER_LFE_ON))
- val &= ~DSP_BIND_CENTER_LFE;
- }
- }
- return put_user(val, p);
-
- case SNDCTL_DSP_MAPINBUF:
- case SNDCTL_DSP_MAPOUTBUF:
- case SNDCTL_DSP_SETSYNCRO:
- case SOUND_PCM_WRITE_FILTER:
- case SOUND_PCM_READ_FILTER:
-#ifdef DEBUG
- printk("SNDCTL_* -EINVAL\n");
-#endif
- return -EINVAL;
- }
- return -EINVAL;
-}
-
-static int i810_open(struct inode *inode, struct file *file)
-{
- int i = 0;
- struct i810_card *card = devs;
- struct i810_state *state = NULL;
- struct dmabuf *dmabuf = NULL;
-
- /* find an avaiable virtual channel (instance of /dev/dsp) */
- while (card != NULL) {
- /*
- * If we are initializing and then fail, card could go
- * away unuexpectedly while we are in the for() loop.
- * So, check for card on each iteration before we check
- * for card->initializing to avoid a possible oops.
- * This usually only matters for times when the driver is
- * autoloaded by kmod.
- */
- for (i = 0; i < 50 && card && card->initializing; i++) {
- set_current_state(TASK_UNINTERRUPTIBLE);
- schedule_timeout(HZ/20);
- }
- for (i = 0; i < NR_HW_CH && card && !card->initializing; i++) {
- if (card->states[i] == NULL) {
- state = card->states[i] = (struct i810_state *)
- kzalloc(sizeof(struct i810_state), GFP_KERNEL);
- if (state == NULL)
- return -ENOMEM;
- dmabuf = &state->dmabuf;
- goto found_virt;
- }
- }
- card = card->next;
- }
- /* no more virtual channel avaiable */
- if (!state)
- return -ENODEV;
-
-found_virt:
- /* initialize the virtual channel */
- state->virt = i;
- state->card = card;
- state->magic = I810_STATE_MAGIC;
- init_waitqueue_head(&dmabuf->wait);
- mutex_init(&state->open_mutex);
- file->private_data = state;
- dmabuf->trigger = 0;
-
- /* allocate hardware channels */
- if(file->f_mode & FMODE_READ) {
- if((dmabuf->read_channel = card->alloc_rec_pcm_channel(card)) == NULL) {
- kfree (card->states[i]);
- card->states[i] = NULL;
- return -EBUSY;
- }
- dmabuf->trigger |= PCM_ENABLE_INPUT;
- i810_set_adc_rate(state, 8000);
- }
- if(file->f_mode & FMODE_WRITE) {
- if((dmabuf->write_channel = card->alloc_pcm_channel(card)) == NULL) {
- /* make sure we free the record channel allocated above */
- if(file->f_mode & FMODE_READ)
- card->free_pcm_channel(card,dmabuf->read_channel->num);
- kfree (card->states[i]);
- card->states[i] = NULL;
- return -EBUSY;
- }
- /* Initialize to 8kHz? What if we don't support 8kHz? */
- /* Let's change this to check for S/PDIF stuff */
-
- dmabuf->trigger |= PCM_ENABLE_OUTPUT;
- if ( spdif_locked ) {
- i810_set_dac_rate(state, spdif_locked);
- i810_set_spdif_output(state, AC97_EA_SPSA_3_4, spdif_locked);
- } else {
- i810_set_dac_rate(state, 8000);
- /* Put the ACLink in 2 channel mode by default */
- i = I810_IOREADL(card, GLOB_CNT);
- I810_IOWRITEL(i & 0xffcfffff, card, GLOB_CNT);
- }
- }
-
- /* set default sample format. According to OSS Programmer's Guide /dev/dsp
- should be default to unsigned 8-bits, mono, with sample rate 8kHz and
- /dev/dspW will accept 16-bits sample, but we don't support those so we
- set it immediately to stereo and 16bit, which is all we do support */
- dmabuf->fmt |= I810_FMT_16BIT | I810_FMT_STEREO;
- dmabuf->ossfragsize = 0;
- dmabuf->ossmaxfrags = 0;
- dmabuf->subdivision = 0;
-
- state->open_mode |= file->f_mode & (FMODE_READ | FMODE_WRITE);
-
- return nonseekable_open(inode, file);
-}
-
-static int i810_release(struct inode *inode, struct file *file)
-{
- struct i810_state *state = (struct i810_state *)file->private_data;
- struct i810_card *card = state->card;
- struct dmabuf *dmabuf = &state->dmabuf;
- unsigned long flags;
-
- lock_kernel();
-
- /* stop DMA state machine and free DMA buffers/channels */
- if(dmabuf->trigger & PCM_ENABLE_OUTPUT) {
- drain_dac(state, 0);
- }
- if(dmabuf->trigger & PCM_ENABLE_INPUT) {
- stop_adc(state);
- }
- spin_lock_irqsave(&card->lock, flags);
- dealloc_dmabuf(state);
- if (file->f_mode & FMODE_WRITE) {
- state->card->free_pcm_channel(state->card, dmabuf->write_channel->num);
- }
- if (file->f_mode & FMODE_READ) {
- state->card->free_pcm_channel(state->card, dmabuf->read_channel->num);
- }
-
- state->card->states[state->virt] = NULL;
- kfree(state);
- spin_unlock_irqrestore(&card->lock, flags);
- unlock_kernel();
-
- return 0;
-}
-
-static /*const*/ struct file_operations i810_audio_fops = {
- .owner = THIS_MODULE,
- .llseek = no_llseek,
- .read = i810_read,
- .write = i810_write,
- .poll = i810_poll,
- .ioctl = i810_ioctl,
- .mmap = i810_mmap,
- .open = i810_open,
- .release = i810_release,
-};
-
-/* Write AC97 codec registers */
-
-static u16 i810_ac97_get_mmio(struct ac97_codec *dev, u8 reg)
-{
- struct i810_card *card = dev->private_data;
- int count = 100;
- u16 reg_set = IO_REG_OFF(dev) | (reg&0x7f);
-
- while(count-- && (readb(card->iobase_mmio + CAS) & 1))
- udelay(1);
-
-#ifdef DEBUG_MMIO
- {
- u16 ans = readw(card->ac97base_mmio + reg_set);
- printk(KERN_DEBUG "i810_audio: ac97_get_mmio(%d) -> 0x%04X\n", ((int) reg_set) & 0xffff, (u32) ans);
- return ans;
- }
-#else
- return readw(card->ac97base_mmio + reg_set);
-#endif
-}
-
-static u16 i810_ac97_get_io(struct ac97_codec *dev, u8 reg)
-{
- struct i810_card *card = dev->private_data;
- int count = 100;
- u16 reg_set = IO_REG_OFF(dev) | (reg&0x7f);
-
- while(count-- && (I810_IOREADB(card, CAS) & 1))
- udelay(1);
-
- return inw(card->ac97base + reg_set);
-}
-
-static void i810_ac97_set_mmio(struct ac97_codec *dev, u8 reg, u16 data)
-{
- struct i810_card *card = dev->private_data;
- int count = 100;
- u16 reg_set = IO_REG_OFF(dev) | (reg&0x7f);
-
- while(count-- && (readb(card->iobase_mmio + CAS) & 1))
- udelay(1);
-
- writew(data, card->ac97base_mmio + reg_set);
-
-#ifdef DEBUG_MMIO
- printk(KERN_DEBUG "i810_audio: ac97_set_mmio(0x%04X, %d)\n", (u32) data, ((int) reg_set) & 0xffff);
-#endif
-}
-
-static void i810_ac97_set_io(struct ac97_codec *dev, u8 reg, u16 data)
-{
- struct i810_card *card = dev->private_data;
- int count = 100;
- u16 reg_set = IO_REG_OFF(dev) | (reg&0x7f);
-
- while(count-- && (I810_IOREADB(card, CAS) & 1))
- udelay(1);
-
- outw(data, card->ac97base + reg_set);
-}
-
-static u16 i810_ac97_get(struct ac97_codec *dev, u8 reg)
-{
- struct i810_card *card = dev->private_data;
- u16 ret;
-
- spin_lock(&card->ac97_lock);
- if (card->use_mmio) {
- ret = i810_ac97_get_mmio(dev, reg);
- }
- else {
- ret = i810_ac97_get_io(dev, reg);
- }
- spin_unlock(&card->ac97_lock);
-
- return ret;
-}
-
-static void i810_ac97_set(struct ac97_codec *dev, u8 reg, u16 data)
-{
- struct i810_card *card = dev->private_data;
-
- spin_lock(&card->ac97_lock);
- if (card->use_mmio) {
- i810_ac97_set_mmio(dev, reg, data);
- }
- else {
- i810_ac97_set_io(dev, reg, data);
- }
- spin_unlock(&card->ac97_lock);
-}
-
-
-/* OSS /dev/mixer file operation methods */
-
-static int i810_open_mixdev(struct inode *inode, struct file *file)
-{
- int i;
- int minor = iminor(inode);
- struct i810_card *card = devs;
-
- for (card = devs; card != NULL; card = card->next) {
- /*
- * If we are initializing and then fail, card could go
- * away unuexpectedly while we are in the for() loop.
- * So, check for card on each iteration before we check
- * for card->initializing to avoid a possible oops.
- * This usually only matters for times when the driver is
- * autoloaded by kmod.
- */
- for (i = 0; i < 50 && card && card->initializing; i++) {
- set_current_state(TASK_UNINTERRUPTIBLE);
- schedule_timeout(HZ/20);
- }
- for (i = 0; i < NR_AC97 && card && !card->initializing; i++)
- if (card->ac97_codec[i] != NULL &&
- card->ac97_codec[i]->dev_mixer == minor) {
- file->private_data = card->ac97_codec[i];
- return nonseekable_open(inode, file);
- }
- }
- return -ENODEV;
-}
-
-static int i810_ioctl_mixdev(struct inode *inode, struct file *file, unsigned int cmd,
- unsigned long arg)
-{
- struct ac97_codec *codec = (struct ac97_codec *)file->private_data;
-
- return codec->mixer_ioctl(codec, cmd, arg);
-}
-
-static /*const*/ struct file_operations i810_mixer_fops = {
- .owner = THIS_MODULE,
- .llseek = no_llseek,
- .ioctl = i810_ioctl_mixdev,
- .open = i810_open_mixdev,
-};
-
-/* AC97 codec initialisation. These small functions exist so we don't
- duplicate code between module init and apm resume */
-
-static inline int i810_ac97_exists(struct i810_card *card, int ac97_number)
-{
- u32 reg = I810_IOREADL(card, GLOB_STA);
- switch (ac97_number) {
- case 0:
- return reg & (1<<8);
- case 1:
- return reg & (1<<9);
- case 2:
- return reg & (1<<28);
- }
- return 0;
-}
-
-static inline int i810_ac97_enable_variable_rate(struct ac97_codec *codec)
-{
- i810_ac97_set(codec, AC97_EXTENDED_STATUS, 9);
- i810_ac97_set(codec,AC97_EXTENDED_STATUS,
- i810_ac97_get(codec, AC97_EXTENDED_STATUS)|0xE800);
-
- return (i810_ac97_get(codec, AC97_EXTENDED_STATUS)&1);
-}
-
-
-static int i810_ac97_probe_and_powerup(struct i810_card *card,struct ac97_codec *codec)
-{
- /* Returns 0 on failure */
- int i;
-
- if (ac97_probe_codec(codec) == 0) return 0;
-
- /* power it all up */
- i810_ac97_set(codec, AC97_POWER_CONTROL,
- i810_ac97_get(codec, AC97_POWER_CONTROL) & ~0x7f00);
-
- /* wait for analog ready */
- for (i=100; i && ((i810_ac97_get(codec, AC97_POWER_CONTROL) & 0xf) != 0xf); i--)
- {
- set_current_state(TASK_UNINTERRUPTIBLE);
- schedule_timeout(HZ/20);
- }
- return i;
-}
-
-static int is_new_ich(u16 pci_id)
-{
- switch (pci_id) {
- case PCI_DEVICE_ID_INTEL_82801DB_5:
- case PCI_DEVICE_ID_INTEL_82801EB_5:
- case PCI_DEVICE_ID_INTEL_ESB_5:
- case PCI_DEVICE_ID_INTEL_ICH6_18:
- return 1;
- default:
- break;
- }
-
- return 0;
-}
-
-static inline int ich_use_mmio(struct i810_card *card)
-{
- return is_new_ich(card->pci_id) && card->use_mmio;
-}
-
-/**
- * i810_ac97_power_up_bus - bring up AC97 link
- * @card : ICH audio device to power up
- *
- * Bring up the ACLink AC97 codec bus
- */
-
-static int i810_ac97_power_up_bus(struct i810_card *card)
-{
- u32 reg = I810_IOREADL(card, GLOB_CNT);
- int i;
- int primary_codec_id = 0;
-
- if((reg&2)==0) /* Cold required */
- reg|=2;
- else
- reg|=4; /* Warm */
-
- reg&=~8; /* ACLink on */
-
- /* At this point we deassert AC_RESET # */
- I810_IOWRITEL(reg , card, GLOB_CNT);
-
- /* We must now allow time for the Codec initialisation.
- 600mS is the specified time */
-
- for(i=0;i<10;i++)
- {
- if((I810_IOREADL(card, GLOB_CNT)&4)==0)
- break;
-
- set_current_state(TASK_UNINTERRUPTIBLE);
- schedule_timeout(HZ/20);
- }
- if(i==10)
- {
- printk(KERN_ERR "i810_audio: AC'97 reset failed.\n");
- return 0;
- }
-
- set_current_state(TASK_UNINTERRUPTIBLE);
- schedule_timeout(HZ/2);
-
- /*
- * See if the primary codec comes ready. This must happen
- * before we start doing DMA stuff
- */
- /* see i810_ac97_init for the next 10 lines (jsaw) */
- if (card->use_mmio)
- readw(card->ac97base_mmio);
- else
- inw(card->ac97base);
- if (ich_use_mmio(card)) {
- primary_codec_id = (int) readl(card->iobase_mmio + SDM) & 0x3;
- printk(KERN_INFO "i810_audio: Primary codec has ID %d\n",
- primary_codec_id);
- }
-
- if(! i810_ac97_exists(card, primary_codec_id))
- {
- printk(KERN_INFO "i810_audio: Codec not ready.. wait.. ");
- set_current_state(TASK_UNINTERRUPTIBLE);
- schedule_timeout(HZ); /* actually 600mS by the spec */
-
- if(i810_ac97_exists(card, primary_codec_id))
- printk("OK\n");
- else
- printk("no response.\n");
- }
- if (card->use_mmio)
- readw(card->ac97base_mmio);
- else
- inw(card->ac97base);
- return 1;
-}
-
-static int __devinit i810_ac97_init(struct i810_card *card)
-{
- int num_ac97 = 0;
- int ac97_id;
- int total_channels = 0;
- int nr_ac97_max = card_cap[card->pci_id_internal].nr_ac97;
- struct ac97_codec *codec;
- u16 eid;
- u32 reg;
-
- if(!i810_ac97_power_up_bus(card)) return 0;
-
- /* Number of channels supported */
- /* What about the codec? Just because the ICH supports */
- /* multiple channels doesn't mean the codec does. */
- /* we'll have to modify this in the codec section below */
- /* to reflect what the codec has. */
- /* ICH and ICH0 only support 2 channels so don't bother */
- /* to check.... */
-
- card->channels = 2;
- reg = I810_IOREADL(card, GLOB_STA);
- if ( reg & 0x0200000 )
- card->channels = 6;
- else if ( reg & 0x0100000 )
- card->channels = 4;
- printk(KERN_INFO "i810_audio: Audio Controller supports %d channels.\n", card->channels);
- printk(KERN_INFO "i810_audio: Defaulting to base 2 channel mode.\n");
- reg = I810_IOREADL(card, GLOB_CNT);
- I810_IOWRITEL(reg & 0xffcfffff, card, GLOB_CNT);
-
- for (num_ac97 = 0; num_ac97 < NR_AC97; num_ac97++)
- card->ac97_codec[num_ac97] = NULL;
-
- /*@FIXME I don't know, if I'm playing to safe here... (jsaw) */
- if ((nr_ac97_max > 2) && !card->use_mmio) nr_ac97_max = 2;
-
- for (num_ac97 = 0; num_ac97 < nr_ac97_max; num_ac97++) {
- /* codec reset */
- printk(KERN_INFO "i810_audio: Resetting connection %d\n", num_ac97);
- if (card->use_mmio)
- readw(card->ac97base_mmio + 0x80*num_ac97);
- else
- inw(card->ac97base + 0x80*num_ac97);
-
- /* If we have the SDATA_IN Map Register, as on ICH4, we
- do not loop thru all possible codec IDs but thru all
- possible IO channels. Bit 0:1 of SDM then holds the
- last codec ID spoken to.
- */
- if (ich_use_mmio(card)) {
- ac97_id = (int) readl(card->iobase_mmio + SDM) & 0x3;
- printk(KERN_INFO "i810_audio: Connection %d with codec id %d\n",
- num_ac97, ac97_id);
- }
- else {
- ac97_id = num_ac97;
- }
-
- /* The ICH programmer's reference says you should */
- /* check the ready status before probing. So we chk */
- /* What do we do if it's not ready? Wait and try */
- /* again, or abort? */
- if (!i810_ac97_exists(card, ac97_id)) {
- if(num_ac97 == 0)
- printk(KERN_ERR "i810_audio: Primary codec not ready.\n");
- }
-
- if ((codec = ac97_alloc_codec()) == NULL)
- return -ENOMEM;
-
- /* initialize some basic codec information, other fields will be filled
- in ac97_probe_codec */
- codec->private_data = card;
- codec->id = ac97_id;
- card->ac97_id_map[ac97_id] = num_ac97 * 0x80;
-
- if (card->use_mmio) {
- codec->codec_read = i810_ac97_get_mmio;
- codec->codec_write = i810_ac97_set_mmio;
- }
- else {
- codec->codec_read = i810_ac97_get_io;
- codec->codec_write = i810_ac97_set_io;
- }
-
- if(!i810_ac97_probe_and_powerup(card,codec)) {
- printk(KERN_ERR "i810_audio: timed out waiting for codec %d analog ready.\n", ac97_id);
- ac97_release_codec(codec);
- break; /* it didn't work */
- }
- /* Store state information about S/PDIF transmitter */
- card->ac97_status = 0;
-
- /* Don't attempt to get eid until powerup is complete */
- eid = i810_ac97_get(codec, AC97_EXTENDED_ID);
-
- if(eid==0xFFFF)
- {
- printk(KERN_WARNING "i810_audio: no codec attached ?\n");
- ac97_release_codec(codec);
- break;
- }
-
- /* Check for an AC97 1.0 soft modem (ID1) */
-
- if(codec->modem)
- {
- printk(KERN_WARNING "i810_audio: codec %d is a softmodem - skipping.\n", ac97_id);
- ac97_release_codec(codec);
- continue;
- }
-
- card->ac97_features = eid;
-
- /* Now check the codec for useful features to make up for
- the dumbness of the 810 hardware engine */
-
- if(!(eid&0x0001))
- printk(KERN_WARNING "i810_audio: only 48Khz playback available.\n");
- else
- {
- if(!i810_ac97_enable_variable_rate(codec)) {
- printk(KERN_WARNING "i810_audio: Codec refused to allow VRA, using 48Khz only.\n");
- card->ac97_features&=~1;
- }
- }
-
- /* Turn on the amplifier */
-
- codec->codec_write(codec, AC97_POWER_CONTROL,
- codec->codec_read(codec, AC97_POWER_CONTROL) & ~0x8000);
-
- /* Determine how many channels the codec(s) support */
- /* - The primary codec always supports 2 */
- /* - If the codec supports AMAP, surround DACs will */
- /* automaticlly get assigned to slots. */
- /* * Check for surround DACs and increment if */
- /* found. */
- /* - Else check if the codec is revision 2.2 */
- /* * If surround DACs exist, assign them to slots */
- /* and increment channel count. */
-
- /* All of this only applies to ICH2 and above. ICH */
- /* and ICH0 only support 2 channels. ICH2 will only */
- /* support multiple codecs in a "split audio" config. */
- /* as described above. */
-
- /* TODO: Remove all the debugging messages! */
-
- if((eid & 0xc000) == 0) /* primary codec */
- total_channels += 2;
-
- if(eid & 0x200) { /* GOOD, AMAP support */
- if (eid & 0x0080) /* L/R Surround channels */
- total_channels += 2;
- if (eid & 0x0140) /* LFE and Center channels */
- total_channels += 2;
- printk("i810_audio: AC'97 codec %d supports AMAP, total channels = %d\n", ac97_id, total_channels);
- } else if (eid & 0x0400) { /* this only works on 2.2 compliant codecs */
- eid &= 0xffcf;
- if((eid & 0xc000) != 0) {
- switch ( total_channels ) {
- case 2:
- /* Set dsa1, dsa0 to 01 */
- eid |= 0x0010;
- break;
- case 4:
- /* Set dsa1, dsa0 to 10 */
- eid |= 0x0020;
- break;
- case 6:
- /* Set dsa1, dsa0 to 11 */
- eid |= 0x0030;
- break;
- }
- total_channels += 2;
- }
- i810_ac97_set(codec, AC97_EXTENDED_ID, eid);
- eid = i810_ac97_get(codec, AC97_EXTENDED_ID);
- printk("i810_audio: AC'97 codec %d, new EID value = 0x%04x\n", ac97_id, eid);
- if (eid & 0x0080) /* L/R Surround channels */
- total_channels += 2;
- if (eid & 0x0140) /* LFE and Center channels */
- total_channels += 2;
- printk("i810_audio: AC'97 codec %d, DAC map configured, total channels = %d\n", ac97_id, total_channels);
- } else {
- printk("i810_audio: AC'97 codec %d Unable to map surround DAC's (or DAC's not present), total channels = %d\n", ac97_id, total_channels);
- }
-
- if ((codec->dev_mixer = register_sound_mixer(&i810_mixer_fops, -1)) < 0) {
- printk(KERN_ERR "i810_audio: couldn't register mixer!\n");
- ac97_release_codec(codec);
- break;
- }
-
- card->ac97_codec[num_ac97] = codec;
- }
-
- /* tune up the primary codec */
- ac97_tune_hardware(card->pci_dev, ac97_quirks, ac97_quirk);
-
- /* pick the minimum of channels supported by ICHx or codec(s) */
- card->channels = (card->channels > total_channels)?total_channels:card->channels;
-
- return num_ac97;
-}
-
-static void __devinit i810_configure_clocking (void)
-{
- struct i810_card *card;
- struct i810_state *state;
- struct dmabuf *dmabuf;
- unsigned int i, offset, new_offset;
- unsigned long flags;
-
- card = devs;
- /* We could try to set the clocking for multiple cards, but can you even have
- * more than one i810 in a machine? Besides, clocking is global, so unless
- * someone actually thinks more than one i810 in a machine is possible and
- * decides to rewrite that little bit, setting the rate for more than one card
- * is a waste of time.
- */
- if(card != NULL) {
- state = card->states[0] = (struct i810_state *)
- kzalloc(sizeof(struct i810_state), GFP_KERNEL);
- if (state == NULL)
- return;
- dmabuf = &state->dmabuf;
-
- dmabuf->write_channel = card->alloc_pcm_channel(card);
- state->virt = 0;
- state->card = card;
- state->magic = I810_STATE_MAGIC;
- init_waitqueue_head(&dmabuf->wait);
- mutex_init(&state->open_mutex);
- dmabuf->fmt = I810_FMT_STEREO | I810_FMT_16BIT;
- dmabuf->trigger = PCM_ENABLE_OUTPUT;
- i810_set_spdif_output(state, -1, 0);
- i810_set_dac_channels(state, 2);
- i810_set_dac_rate(state, 48000);
- if(prog_dmabuf(state, 0) != 0) {
- goto config_out_nodmabuf;
- }
- if(dmabuf->dmasize < 16384) {
- goto config_out;
- }
- dmabuf->count = dmabuf->dmasize;
- CIV_TO_LVI(card, dmabuf->write_channel->port, -1);
- local_irq_save(flags);
- start_dac(state);
- offset = i810_get_dma_addr(state, 0);
- mdelay(50);
- new_offset = i810_get_dma_addr(state, 0);
- stop_dac(state);
- local_irq_restore(flags);
- i = new_offset - offset;
-#ifdef DEBUG_INTERRUPTS
- printk("i810_audio: %d bytes in 50 milliseconds\n", i);
-#endif
- if(i == 0)
- goto config_out;
- i = i / 4 * 20;
- if (i > 48500 || i < 47500) {
- clocking = clocking * clocking / i;
- printk("i810_audio: setting clocking to %d\n", clocking);
- }
-config_out:
- dealloc_dmabuf(state);
-config_out_nodmabuf:
- state->card->free_pcm_channel(state->card,state->dmabuf.write_channel->num);
- kfree(state);
- card->states[0] = NULL;
- }
-}
-
-/* install the driver, we do not allocate hardware channel nor DMA buffer now, they are defered
- until "ACCESS" time (in prog_dmabuf called by open/read/write/ioctl/mmap) */
-
-static int __devinit i810_probe(struct pci_dev *pci_dev, const struct pci_device_id *pci_id)
-{
- struct i810_card *card;
-
- if (pci_enable_device(pci_dev))
- return -EIO;
-
- if (pci_set_dma_mask(pci_dev, I810_DMA_MASK)) {
- printk(KERN_ERR "i810_audio: architecture does not support"
- " 32bit PCI busmaster DMA\n");
- return -ENODEV;
- }
-
- if ((card = kzalloc(sizeof(struct i810_card), GFP_KERNEL)) == NULL) {
- printk(KERN_ERR "i810_audio: out of memory\n");
- return -ENOMEM;
- }
-
- card->initializing = 1;
- card->pci_dev = pci_dev;
- card->pci_id = pci_id->device;
- card->ac97base = pci_resource_start (pci_dev, 0);
- card->iobase = pci_resource_start (pci_dev, 1);
-
- if (!(card->ac97base) || !(card->iobase)) {
- card->ac97base = 0;
- card->iobase = 0;
- }
-
- /* if chipset could have mmio capability, check it */
- if (card_cap[pci_id->driver_data].flags & CAP_MMIO) {
- card->ac97base_mmio_phys = pci_resource_start (pci_dev, 2);
- card->iobase_mmio_phys = pci_resource_start (pci_dev, 3);
-
- if ((card->ac97base_mmio_phys) && (card->iobase_mmio_phys)) {
- card->use_mmio = 1;
- }
- else {
- card->ac97base_mmio_phys = 0;
- card->iobase_mmio_phys = 0;
- }
- }
-
- if (!(card->use_mmio) && (!(card->iobase) || !(card->ac97base))) {
- printk(KERN_ERR "i810_audio: No I/O resources available.\n");
- goto out_mem;
- }
-
- card->irq = pci_dev->irq;
- card->next = devs;
- card->magic = I810_CARD_MAGIC;
-#ifdef CONFIG_PM
- card->pm_suspended=0;
-#endif
- spin_lock_init(&card->lock);
- spin_lock_init(&card->ac97_lock);
- devs = card;
-
- pci_set_master(pci_dev);
-
- printk(KERN_INFO "i810: %s found at IO 0x%04lx and 0x%04lx, "
- "MEM 0x%04lx and 0x%04lx, IRQ %d\n",
- card_names[pci_id->driver_data],
- card->iobase, card->ac97base,
- card->ac97base_mmio_phys, card->iobase_mmio_phys,
- card->irq);
-
- card->alloc_pcm_channel = i810_alloc_pcm_channel;
- card->alloc_rec_pcm_channel = i810_alloc_rec_pcm_channel;
- card->alloc_rec_mic_channel = i810_alloc_rec_mic_channel;
- card->free_pcm_channel = i810_free_pcm_channel;
-
- if ((card->channel = pci_alloc_consistent(pci_dev,
- sizeof(struct i810_channel)*NR_HW_CH, &card->chandma)) == NULL) {
- printk(KERN_ERR "i810: cannot allocate channel DMA memory\n");
- goto out_mem;
- }
-
- { /* We may dispose of this altogether some time soon, so... */
- struct i810_channel *cp = card->channel;
-
- cp[0].offset = 0;
- cp[0].port = 0x00;
- cp[0].num = 0;
- cp[1].offset = 0;
- cp[1].port = 0x10;
- cp[1].num = 1;
- cp[2].offset = 0;
- cp[2].port = 0x20;
- cp[2].num = 2;
- }
-
- /* claim our iospace and irq */
- if (!request_region(card->iobase, 64, card_names[pci_id->driver_data])) {
- printk(KERN_ERR "i810_audio: unable to allocate region %lx\n", card->iobase);
- goto out_region1;
- }
- if (!request_region(card->ac97base, 256, card_names[pci_id->driver_data])) {
- printk(KERN_ERR "i810_audio: unable to allocate region %lx\n", card->ac97base);
- goto out_region2;
- }
-
- if (card->use_mmio) {
- if (request_mem_region(card->ac97base_mmio_phys, 512, "ich_audio MMBAR")) {
- if ((card->ac97base_mmio = ioremap(card->ac97base_mmio_phys, 512))) { /*@FIXME can ioremap fail? don't know (jsaw) */
- if (request_mem_region(card->iobase_mmio_phys, 256, "ich_audio MBBAR")) {
- if ((card->iobase_mmio = ioremap(card->iobase_mmio_phys, 256))) {
- printk(KERN_INFO "i810: %s mmio at 0x%04lx and 0x%04lx\n",
- card_names[pci_id->driver_data],
- (unsigned long) card->ac97base_mmio,
- (unsigned long) card->iobase_mmio);
- }
- else {
- iounmap(card->ac97base_mmio);
- release_mem_region(card->ac97base_mmio_phys, 512);
- release_mem_region(card->iobase_mmio_phys, 512);
- card->use_mmio = 0;
- }
- }
- else {
- iounmap(card->ac97base_mmio);
- release_mem_region(card->ac97base_mmio_phys, 512);
- card->use_mmio = 0;
- }
- }
- }
- else {
- card->use_mmio = 0;
- }
- }
-
- /* initialize AC97 codec and register /dev/mixer */
- if (i810_ac97_init(card) <= 0)
- goto out_iospace;
- pci_set_drvdata(pci_dev, card);
-
- if(clocking == 0) {
- clocking = 48000;
- i810_configure_clocking();
- }
-
- /* register /dev/dsp */
- if ((card->dev_audio = register_sound_dsp(&i810_audio_fops, -1)) < 0) {
- int i;
- printk(KERN_ERR "i810_audio: couldn't register DSP device!\n");
- for (i = 0; i < NR_AC97; i++)
- if (card->ac97_codec[i] != NULL) {
- unregister_sound_mixer(card->ac97_codec[i]->dev_mixer);
- ac97_release_codec(card->ac97_codec[i]);
- }
- goto out_iospace;
- }
-
- if (request_irq(card->irq, &i810_interrupt, IRQF_SHARED,
- card_names[pci_id->driver_data], card)) {
- printk(KERN_ERR "i810_audio: unable to allocate irq %d\n", card->irq);
- goto out_iospace;
- }
-
-
- card->initializing = 0;
- return 0;
-
-out_iospace:
- if (card->use_mmio) {
- iounmap(card->ac97base_mmio);
- iounmap(card->iobase_mmio);
- release_mem_region(card->ac97base_mmio_phys, 512);
- release_mem_region(card->iobase_mmio_phys, 256);
- }
- release_region(card->ac97base, 256);
-out_region2:
- release_region(card->iobase, 64);
-out_region1:
- pci_free_consistent(pci_dev, sizeof(struct i810_channel)*NR_HW_CH,
- card->channel, card->chandma);
-out_mem:
- kfree(card);
- return -ENODEV;
-}
-
-static void __devexit i810_remove(struct pci_dev *pci_dev)
-{
- int i;
- struct i810_card *card = pci_get_drvdata(pci_dev);
- /* free hardware resources */
- free_irq(card->irq, devs);
- release_region(card->iobase, 64);
- release_region(card->ac97base, 256);
- pci_free_consistent(pci_dev, sizeof(struct i810_channel)*NR_HW_CH,
- card->channel, card->chandma);
- if (card->use_mmio) {
- iounmap(card->ac97base_mmio);
- iounmap(card->iobase_mmio);
- release_mem_region(card->ac97base_mmio_phys, 512);
- release_mem_region(card->iobase_mmio_phys, 256);
- }
-
- /* unregister audio devices */
- for (i = 0; i < NR_AC97; i++)
- if (card->ac97_codec[i] != NULL) {
- unregister_sound_mixer(card->ac97_codec[i]->dev_mixer);
- ac97_release_codec(card->ac97_codec[i]);
- card->ac97_codec[i] = NULL;
- }
- unregister_sound_dsp(card->dev_audio);
- kfree(card);
-}
-
-#ifdef CONFIG_PM
-static int i810_pm_suspend(struct pci_dev *dev, pm_message_t pm_state)
-{
- struct i810_card *card = pci_get_drvdata(dev);
- struct i810_state *state;
- unsigned long flags;
- struct dmabuf *dmabuf;
- int i,num_ac97;
-#ifdef DEBUG
- printk("i810_audio: i810_pm_suspend called\n");
-#endif
- if(!card) return 0;
- spin_lock_irqsave(&card->lock, flags);
- card->pm_suspended=1;
- for(i=0;i<NR_HW_CH;i++) {
- state = card->states[i];
- if(!state) continue;
- /* this happens only if there are open files */
- dmabuf = &state->dmabuf;
- if(dmabuf->enable & DAC_RUNNING ||
- (dmabuf->count && (dmabuf->trigger & PCM_ENABLE_OUTPUT))) {
- state->pm_saved_dac_rate=dmabuf->rate;
- stop_dac(state);
- } else {
- state->pm_saved_dac_rate=0;
- }
- if(dmabuf->enable & ADC_RUNNING) {
- state->pm_saved_adc_rate=dmabuf->rate;
- stop_adc(state);
- } else {
- state->pm_saved_adc_rate=0;
- }
- dmabuf->ready = 0;
- dmabuf->swptr = dmabuf->hwptr = 0;
- dmabuf->count = dmabuf->total_bytes = 0;
- }
-
- spin_unlock_irqrestore(&card->lock, flags);
-
- /* save mixer settings */
- for (num_ac97 = 0; num_ac97 < NR_AC97; num_ac97++) {
- struct ac97_codec *codec = card->ac97_codec[num_ac97];
- if(!codec) continue;
- for(i=0;i< SOUND_MIXER_NRDEVICES ;i++) {
- if((supported_mixer(codec,i)) &&
- (codec->read_mixer)) {
- card->pm_saved_mixer_settings[i][num_ac97]=
- codec->read_mixer(codec,i);
- }
- }
- }
- pci_save_state(dev); /* XXX do we need this? */
- pci_disable_device(dev); /* disable busmastering */
- pci_set_power_state(dev,3); /* Zzz. */
-
- return 0;
-}
-
-
-static int i810_pm_resume(struct pci_dev *dev)
-{
- int num_ac97,i=0;
- struct i810_card *card=pci_get_drvdata(dev);
- pci_enable_device(dev);
- pci_restore_state (dev);
-
- /* observation of a toshiba portege 3440ct suggests that the
- hardware has to be more or less completely reinitialized from
- scratch after an apm suspend. Works For Me. -dan */
-
- i810_ac97_power_up_bus(card);
-
- for (num_ac97 = 0; num_ac97 < NR_AC97; num_ac97++) {
- struct ac97_codec *codec = card->ac97_codec[num_ac97];
- /* check they haven't stolen the hardware while we were
- away */
- if(!codec || !i810_ac97_exists(card,num_ac97)) {
- if(num_ac97) continue;
- else BUG();
- }
- if(!i810_ac97_probe_and_powerup(card,codec)) BUG();
-
- if((card->ac97_features&0x0001)) {
- /* at probe time we found we could do variable
- rates, but APM suspend has made it forget
- its magical powers */
- if(!i810_ac97_enable_variable_rate(codec)) BUG();
- }
- /* we lost our mixer settings, so restore them */
- for(i=0;i< SOUND_MIXER_NRDEVICES ;i++) {
- if(supported_mixer(codec,i)){
- int val=card->
- pm_saved_mixer_settings[i][num_ac97];
- codec->mixer_state[i]=val;
- codec->write_mixer(codec,i,
- (val & 0xff) ,
- ((val >> 8) & 0xff) );
- }
- }
- }
-
- /* we need to restore the sample rate from whatever it was */
- for(i=0;i<NR_HW_CH;i++) {
- struct i810_state * state=card->states[i];
- if(state) {
- if(state->pm_saved_adc_rate)
- i810_set_adc_rate(state,state->pm_saved_adc_rate);
- if(state->pm_saved_dac_rate)
- i810_set_dac_rate(state,state->pm_saved_dac_rate);
- }
- }
-
-
- card->pm_suspended = 0;
-
- /* any processes that were reading/writing during the suspend
- probably ended up here */
- for(i=0;i<NR_HW_CH;i++) {
- struct i810_state *state = card->states[i];
- if(state) wake_up(&state->dmabuf.wait);
- }
-
- return 0;
-}
-#endif /* CONFIG_PM */
-
-MODULE_AUTHOR("The Linux kernel team");
-MODULE_DESCRIPTION("Intel 810 audio support");
-MODULE_LICENSE("GPL");
-module_param(ftsodell, int, 0444);
-module_param(clocking, uint, 0444);
-module_param(strict_clocking, int, 0444);
-module_param(spdif_locked, int, 0444);
-
-#define I810_MODULE_NAME "i810_audio"
-
-static struct pci_driver i810_pci_driver = {
- .name = I810_MODULE_NAME,
- .id_table = i810_pci_tbl,
- .probe = i810_probe,
- .remove = __devexit_p(i810_remove),
-#ifdef CONFIG_PM
- .suspend = i810_pm_suspend,
- .resume = i810_pm_resume,
-#endif /* CONFIG_PM */
-};
-
-
-static int __init i810_init_module (void)
-{
- int retval;
-
- printk(KERN_INFO "Intel 810 + AC97 Audio, version "
- DRIVER_VERSION ", " __TIME__ " " __DATE__ "\n");
-
- retval = pci_register_driver(&i810_pci_driver);
- if (retval)
- return retval;
-
- if(ftsodell != 0) {
- printk("i810_audio: ftsodell is now a deprecated option.\n");
- }
- if(spdif_locked > 0 ) {
- if(spdif_locked == 32000 || spdif_locked == 44100 || spdif_locked == 48000) {
- printk("i810_audio: Enabling S/PDIF at sample rate %dHz.\n", spdif_locked);
- } else {
- printk("i810_audio: S/PDIF can only be locked to 32000, 44100, or 48000Hz.\n");
- spdif_locked = 0;
- }
- }
-
- return 0;
-}
-
-static void __exit i810_cleanup_module (void)
-{
- pci_unregister_driver(&i810_pci_driver);
-}
-
-module_init(i810_init_module);
-module_exit(i810_cleanup_module);
-
-/*
-Local Variables:
-c-basic-offset: 8
-End:
-*/
+++ /dev/null
-/*
- * Support for VIA 82Cxxx Audio Codecs
- * Copyright 1999,2000 Jeff Garzik
- *
- * Updated to support the VIA 8233/8235 audio subsystem
- * Alan Cox <alan@redhat.com> (C) Copyright 2002, 2003 Red Hat Inc
- *
- * Distributed under the GNU GENERAL PUBLIC LICENSE (GPL) Version 2.
- * See the "COPYING" file distributed with this software for more info.
- * NO WARRANTY
- *
- * For a list of known bugs (errata) and documentation,
- * see via-audio.pdf in Documentation/DocBook.
- * If this documentation does not exist, run "make pdfdocs".
- */
-
-
-#define VIA_VERSION "1.9.1-ac4-2.5"
-
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/fs.h>
-#include <linux/mm.h>
-#include <linux/pci.h>
-#include <linux/poison.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/proc_fs.h>
-#include <linux/spinlock.h>
-#include <linux/sound.h>
-#include <linux/poll.h>
-#include <linux/soundcard.h>
-#include <linux/ac97_codec.h>
-#include <linux/ioport.h>
-#include <linux/delay.h>
-#include <linux/dma-mapping.h>
-#include <asm/io.h>
-#include <asm/uaccess.h>
-#include <linux/mutex.h>
-
-#include "sound_config.h"
-#include "dev_table.h"
-#include "mpu401.h"
-
-
-#undef VIA_DEBUG /* define to enable debugging output and checks */
-#ifdef VIA_DEBUG
-/* note: prints function name for you */
-#define DPRINTK(fmt, args...) printk(KERN_DEBUG "%s: " fmt, __FUNCTION__ , ## args)
-#else
-#define DPRINTK(fmt, args...)
-#endif
-
-#undef VIA_NDEBUG /* define to disable lightweight runtime checks */
-#ifdef VIA_NDEBUG
-#define assert(expr)
-#else
-#define assert(expr) \
- if(!(expr)) { \
- printk( "Assertion failed! %s,%s,%s,line=%d\n", \
- #expr,__FILE__,__FUNCTION__,__LINE__); \
- }
-#endif
-
-#define VIA_SUPPORT_MMAP 1 /* buggy, for now... */
-
-#define MAX_CARDS 1
-
-#define VIA_CARD_NAME "VIA 82Cxxx Audio driver " VIA_VERSION
-#define VIA_MODULE_NAME "via82cxxx"
-#define PFX VIA_MODULE_NAME ": "
-
-#define VIA_COUNTER_LIMIT 100000
-
-/* size of DMA buffers */
-#define VIA_MAX_BUFFER_DMA_PAGES 32
-
-/* buffering default values in ms */
-#define VIA_DEFAULT_FRAG_TIME 20
-#define VIA_DEFAULT_BUFFER_TIME 500
-
-/* the hardware has a 256 fragment limit */
-#define VIA_MIN_FRAG_NUMBER 2
-#define VIA_MAX_FRAG_NUMBER 128
-
-#define VIA_MAX_FRAG_SIZE PAGE_SIZE
-#define VIA_MIN_FRAG_SIZE (VIA_MAX_BUFFER_DMA_PAGES * PAGE_SIZE / VIA_MAX_FRAG_NUMBER)
-
-
-/* 82C686 function 5 (audio codec) PCI configuration registers */
-#define VIA_ACLINK_STATUS 0x40
-#define VIA_ACLINK_CTRL 0x41
-#define VIA_FUNC_ENABLE 0x42
-#define VIA_PNP_CONTROL 0x43
-#define VIA_FM_NMI_CTRL 0x48
-
-/*
- * controller base 0 (scatter-gather) registers
- *
- * NOTE: Via datasheet lists first channel as "read"
- * channel and second channel as "write" channel.
- * I changed the naming of the constants to be more
- * clear than I felt the datasheet to be.
- */
-
-#define VIA_BASE0_PCM_OUT_CHAN 0x00 /* output PCM to user */
-#define VIA_BASE0_PCM_OUT_CHAN_STATUS 0x00
-#define VIA_BASE0_PCM_OUT_CHAN_CTRL 0x01
-#define VIA_BASE0_PCM_OUT_CHAN_TYPE 0x02
-
-#define VIA_BASE0_PCM_IN_CHAN 0x10 /* input PCM from user */
-#define VIA_BASE0_PCM_IN_CHAN_STATUS 0x10
-#define VIA_BASE0_PCM_IN_CHAN_CTRL 0x11
-#define VIA_BASE0_PCM_IN_CHAN_TYPE 0x12
-
-/* offsets from base */
-#define VIA_PCM_STATUS 0x00
-#define VIA_PCM_CONTROL 0x01
-#define VIA_PCM_TYPE 0x02
-#define VIA_PCM_LEFTVOL 0x02
-#define VIA_PCM_RIGHTVOL 0x03
-#define VIA_PCM_TABLE_ADDR 0x04
-#define VIA_PCM_STOPRATE 0x08 /* 8233+ */
-#define VIA_PCM_BLOCK_COUNT 0x0C
-
-/* XXX unused DMA channel for FM PCM data */
-#define VIA_BASE0_FM_OUT_CHAN 0x20
-#define VIA_BASE0_FM_OUT_CHAN_STATUS 0x20
-#define VIA_BASE0_FM_OUT_CHAN_CTRL 0x21
-#define VIA_BASE0_FM_OUT_CHAN_TYPE 0x22
-
-/* Six channel audio output on 8233 */
-#define VIA_BASE0_MULTI_OUT_CHAN 0x40
-#define VIA_BASE0_MULTI_OUT_CHAN_STATUS 0x40
-#define VIA_BASE0_MULTI_OUT_CHAN_CTRL 0x41
-#define VIA_BASE0_MULTI_OUT_CHAN_TYPE 0x42
-
-#define VIA_BASE0_AC97_CTRL 0x80
-#define VIA_BASE0_SGD_STATUS_SHADOW 0x84
-#define VIA_BASE0_GPI_INT_ENABLE 0x8C
-#define VIA_INTR_OUT ((1<<0) | (1<<4) | (1<<8))
-#define VIA_INTR_IN ((1<<1) | (1<<5) | (1<<9))
-#define VIA_INTR_FM ((1<<2) | (1<<6) | (1<<10))
-#define VIA_INTR_MASK (VIA_INTR_OUT | VIA_INTR_IN | VIA_INTR_FM)
-
-/* Newer VIA we need to monitor the low 3 bits of each channel. This
- mask covers the channels we don't yet use as well
- */
-
-#define VIA_NEW_INTR_MASK 0x77077777UL
-
-/* VIA_BASE0_AUDIO_xxx_CHAN_TYPE bits */
-#define VIA_IRQ_ON_FLAG (1<<0) /* int on each flagged scatter block */
-#define VIA_IRQ_ON_EOL (1<<1) /* int at end of scatter list */
-#define VIA_INT_SEL_PCI_LAST_LINE_READ (0) /* int at PCI read of last line */
-#define VIA_INT_SEL_LAST_SAMPLE_SENT (1<<2) /* int at last sample sent */
-#define VIA_INT_SEL_ONE_LINE_LEFT (1<<3) /* int at less than one line to send */
-#define VIA_PCM_FMT_STEREO (1<<4) /* PCM stereo format (bit clear == mono) */
-#define VIA_PCM_FMT_16BIT (1<<5) /* PCM 16-bit format (bit clear == 8-bit) */
-#define VIA_PCM_REC_FIFO (1<<6) /* PCM Recording FIFO */
-#define VIA_RESTART_SGD_ON_EOL (1<<7) /* restart scatter-gather at EOL */
-#define VIA_PCM_FMT_MASK (VIA_PCM_FMT_STEREO|VIA_PCM_FMT_16BIT)
-#define VIA_CHAN_TYPE_MASK (VIA_RESTART_SGD_ON_EOL | \
- VIA_IRQ_ON_FLAG | \
- VIA_IRQ_ON_EOL)
-#define VIA_CHAN_TYPE_INT_SELECT (VIA_INT_SEL_LAST_SAMPLE_SENT)
-
-/* PCI configuration register bits and masks */
-#define VIA_CR40_AC97_READY 0x01
-#define VIA_CR40_AC97_LOW_POWER 0x02
-#define VIA_CR40_SECONDARY_READY 0x04
-
-#define VIA_CR41_AC97_ENABLE 0x80 /* enable AC97 codec */
-#define VIA_CR41_AC97_RESET 0x40 /* clear bit to reset AC97 */
-#define VIA_CR41_AC97_WAKEUP 0x20 /* wake up from power-down mode */
-#define VIA_CR41_AC97_SDO 0x10 /* force Serial Data Out (SDO) high */
-#define VIA_CR41_VRA 0x08 /* enable variable sample rate */
-#define VIA_CR41_PCM_ENABLE 0x04 /* AC Link SGD Read Channel PCM Data Output */
-#define VIA_CR41_FM_PCM_ENABLE 0x02 /* AC Link FM Channel PCM Data Out */
-#define VIA_CR41_SB_PCM_ENABLE 0x01 /* AC Link SB PCM Data Output */
-#define VIA_CR41_BOOT_MASK (VIA_CR41_AC97_ENABLE | \
- VIA_CR41_AC97_WAKEUP | \
- VIA_CR41_AC97_SDO)
-#define VIA_CR41_RUN_MASK (VIA_CR41_AC97_ENABLE | \
- VIA_CR41_AC97_RESET | \
- VIA_CR41_VRA | \
- VIA_CR41_PCM_ENABLE)
-
-#define VIA_CR42_SB_ENABLE 0x01
-#define VIA_CR42_MIDI_ENABLE 0x02
-#define VIA_CR42_FM_ENABLE 0x04
-#define VIA_CR42_GAME_ENABLE 0x08
-#define VIA_CR42_MIDI_IRQMASK 0x40
-#define VIA_CR42_MIDI_PNP 0x80
-
-#define VIA_CR44_SECOND_CODEC_SUPPORT (1 << 6)
-#define VIA_CR44_AC_LINK_ACCESS (1 << 7)
-
-#define VIA_CR48_FM_TRAP_TO_NMI (1 << 2)
-
-/* controller base 0 register bitmasks */
-#define VIA_INT_DISABLE_MASK (~(0x01|0x02))
-#define VIA_SGD_STOPPED (1 << 2)
-#define VIA_SGD_PAUSED (1 << 6)
-#define VIA_SGD_ACTIVE (1 << 7)
-#define VIA_SGD_TERMINATE (1 << 6)
-#define VIA_SGD_FLAG (1 << 0)
-#define VIA_SGD_EOL (1 << 1)
-#define VIA_SGD_START (1 << 7)
-
-#define VIA_CR80_FIRST_CODEC 0
-#define VIA_CR80_SECOND_CODEC (1 << 30)
-#define VIA_CR80_FIRST_CODEC_VALID (1 << 25)
-#define VIA_CR80_VALID (1 << 25)
-#define VIA_CR80_SECOND_CODEC_VALID (1 << 27)
-#define VIA_CR80_BUSY (1 << 24)
-#define VIA_CR83_BUSY (1)
-#define VIA_CR83_FIRST_CODEC_VALID (1 << 1)
-#define VIA_CR80_READ (1 << 23)
-#define VIA_CR80_WRITE_MODE 0
-#define VIA_CR80_REG_IDX(idx) ((((idx) & 0xFF) >> 1) << 16)
-
-/* capabilities we announce */
-#ifdef VIA_SUPPORT_MMAP
-#define VIA_DSP_CAP (DSP_CAP_REVISION | DSP_CAP_DUPLEX | DSP_CAP_MMAP | \
- DSP_CAP_TRIGGER | DSP_CAP_REALTIME)
-#else
-#define VIA_DSP_CAP (DSP_CAP_REVISION | DSP_CAP_DUPLEX | \
- DSP_CAP_TRIGGER | DSP_CAP_REALTIME)
-#endif
-
-/* scatter-gather DMA table entry, exactly as passed to hardware */
-struct via_sgd_table {
- u32 addr;
- u32 count; /* includes additional VIA_xxx bits also */
-};
-
-#define VIA_EOL (1 << 31)
-#define VIA_FLAG (1 << 30)
-#define VIA_STOP (1 << 29)
-
-
-enum via_channel_states {
- sgd_stopped = 0,
- sgd_in_progress = 1,
-};
-
-
-struct via_buffer_pgtbl {
- dma_addr_t handle;
- void *cpuaddr;
-};
-
-
-struct via_channel {
- atomic_t n_frags;
- atomic_t hw_ptr;
- wait_queue_head_t wait;
-
- unsigned int sw_ptr;
- unsigned int slop_len;
- unsigned int n_irqs;
- int bytes;
-
- unsigned is_active : 1;
- unsigned is_record : 1;
- unsigned is_mapped : 1;
- unsigned is_enabled : 1;
- unsigned is_multi: 1; /* 8233 6 channel */
- u8 pcm_fmt; /* VIA_PCM_FMT_xxx */
- u8 channels; /* Channel count */
-
- unsigned rate; /* sample rate */
- unsigned int frag_size;
- unsigned int frag_number;
-
- unsigned char intmask;
-
- volatile struct via_sgd_table *sgtable;
- dma_addr_t sgt_handle;
-
- unsigned int page_number;
- struct via_buffer_pgtbl pgtbl[VIA_MAX_BUFFER_DMA_PAGES];
-
- long iobase;
-
- const char *name;
-};
-
-
-/* data stored for each chip */
-struct via_info {
- struct pci_dev *pdev;
- long baseaddr;
-
- struct ac97_codec *ac97;
- spinlock_t ac97_lock;
- spinlock_t lock;
- int card_num; /* unique card number, from 0 */
-
- int dev_dsp; /* /dev/dsp index from register_sound_dsp() */
-
- unsigned rev_h : 1;
- unsigned legacy: 1; /* Has legacy ports */
- unsigned intmask: 1; /* Needs int bits */
- unsigned sixchannel: 1; /* 8233/35 with 6 channel support */
- unsigned volume: 1;
-
- unsigned locked_rate : 1;
-
- int mixer_vol; /* 8233/35 volume - not yet implemented */
-
- struct mutex syscall_mutex;
- struct mutex open_mutex;
-
- /* The 8233/8235 have 4 DX audio channels, two record and
- one six channel out. We bind ch_in to DX 1, ch_out to multichannel
- and ch_fm to DX 2. DX 3 and REC0/REC1 are unused at the
- moment */
-
- struct via_channel ch_in;
- struct via_channel ch_out;
- struct via_channel ch_fm;
-
-#ifdef CONFIG_MIDI_VIA82CXXX
- void *midi_devc;
- struct address_info midi_info;
-#endif
-};
-
-
-/* number of cards, used for assigning unique numbers to cards */
-static unsigned via_num_cards;
-
-
-
-/****************************************************************
- *
- * prototypes
- *
- *
- */
-
-static int via_init_one (struct pci_dev *dev, const struct pci_device_id *id);
-static void __devexit via_remove_one (struct pci_dev *pdev);
-
-static ssize_t via_dsp_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos);
-static ssize_t via_dsp_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos);
-static unsigned int via_dsp_poll(struct file *file, struct poll_table_struct *wait);
-static int via_dsp_ioctl (struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg);
-static int via_dsp_open (struct inode *inode, struct file *file);
-static int via_dsp_release(struct inode *inode, struct file *file);
-static int via_dsp_mmap(struct file *file, struct vm_area_struct *vma);
-
-static u16 via_ac97_read_reg (struct ac97_codec *codec, u8 reg);
-static void via_ac97_write_reg (struct ac97_codec *codec, u8 reg, u16 value);
-static u8 via_ac97_wait_idle (struct via_info *card);
-
-static void via_chan_free (struct via_info *card, struct via_channel *chan);
-static void via_chan_clear (struct via_info *card, struct via_channel *chan);
-static void via_chan_pcm_fmt (struct via_channel *chan, int reset);
-static void via_chan_buffer_free (struct via_info *card, struct via_channel *chan);
-
-
-/****************************************************************
- *
- * Various data the driver needs
- *
- *
- */
-
-
-static struct pci_device_id via_pci_tbl[] = {
- { PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_5,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- { PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233_5,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
- { 0, }
-};
-MODULE_DEVICE_TABLE(pci,via_pci_tbl);
-
-
-static struct pci_driver via_driver = {
- .name = VIA_MODULE_NAME,
- .id_table = via_pci_tbl,
- .probe = via_init_one,
- .remove = __devexit_p(via_remove_one),
-};
-
-
-/****************************************************************
- *
- * Low-level base 0 register read/write helpers
- *
- *
- */
-
-/**
- * via_chan_stop - Terminate DMA on specified PCM channel
- * @iobase: PCI base address for SGD channel registers
- *
- * Terminate scatter-gather DMA operation for given
- * channel (derived from @iobase), if DMA is active.
- *
- * Note that @iobase is not the PCI base address,
- * but the PCI base address plus an offset to
- * one of three PCM channels supported by the chip.
- *
- */
-
-static inline void via_chan_stop (long iobase)
-{
- if (inb (iobase + VIA_PCM_STATUS) & VIA_SGD_ACTIVE)
- outb (VIA_SGD_TERMINATE, iobase + VIA_PCM_CONTROL);
-}
-
-
-/**
- * via_chan_status_clear - Clear status flags on specified DMA channel
- * @iobase: PCI base address for SGD channel registers
- *
- * Clear any pending status flags for the given
- * DMA channel (derived from @iobase), if any
- * flags are asserted.
- *
- * Note that @iobase is not the PCI base address,
- * but the PCI base address plus an offset to
- * one of three PCM channels supported by the chip.
- *
- */
-
-static inline void via_chan_status_clear (long iobase)
-{
- u8 tmp = inb (iobase + VIA_PCM_STATUS);
-
- if (tmp != 0)
- outb (tmp, iobase + VIA_PCM_STATUS);
-}
-
-
-/**
- * sg_begin - Begin recording or playback on a PCM channel
- * @chan: Channel for which DMA operation shall begin
- *
- * Start scatter-gather DMA for the given channel.
- *
- */
-
-static inline void sg_begin (struct via_channel *chan)
-{
- DPRINTK("Start with intmask %d\n", chan->intmask);
- DPRINTK("About to start from %d to %d\n",
- inl(chan->iobase + VIA_PCM_BLOCK_COUNT),
- inb(chan->iobase + VIA_PCM_STOPRATE + 3));
- outb (VIA_SGD_START|chan->intmask, chan->iobase + VIA_PCM_CONTROL);
- DPRINTK("Status is now %02X\n", inb(chan->iobase + VIA_PCM_STATUS));
- DPRINTK("Control is now %02X\n", inb(chan->iobase + VIA_PCM_CONTROL));
-}
-
-
-static int sg_active (long iobase)
-{
- u8 tmp = inb (iobase + VIA_PCM_STATUS);
- if ((tmp & VIA_SGD_STOPPED) || (tmp & VIA_SGD_PAUSED)) {
- printk(KERN_WARNING "via82cxxx warning: SG stopped or paused\n");
- return 0;
- }
- if (tmp & VIA_SGD_ACTIVE)
- return 1;
- return 0;
-}
-
-static int via_sg_offset(struct via_channel *chan)
-{
- return inl (chan->iobase + VIA_PCM_BLOCK_COUNT) & 0x00FFFFFF;
-}
-
-/****************************************************************
- *
- * Miscellaneous debris
- *
- *
- */
-
-
-/**
- * via_syscall_down - down the card-specific syscell semaphore
- * @card: Private info for specified board
- * @nonblock: boolean, non-zero if O_NONBLOCK is set
- *
- * Encapsulates standard method of acquiring the syscall sem.
- *
- * Returns negative errno on error, or zero for success.
- */
-
-static inline int via_syscall_down (struct via_info *card, int nonblock)
-{
- /* Thomas Sailer:
- * EAGAIN is supposed to be used if IO is pending,
- * not if there is contention on some internal
- * synchronization primitive which should be
- * held only for a short time anyway
- */
- nonblock = 0;
-
- if (nonblock) {
- if (!mutex_trylock(&card->syscall_mutex))
- return -EAGAIN;
- } else {
- if (mutex_lock_interruptible(&card->syscall_mutex))
- return -ERESTARTSYS;
- }
-
- return 0;
-}
-
-
-/**
- * via_stop_everything - Stop all audio operations
- * @card: Private info for specified board
- *
- * Stops all DMA operations and interrupts, and clear
- * any pending status bits resulting from those operations.
- */
-
-static void via_stop_everything (struct via_info *card)
-{
- u8 tmp, new_tmp;
-
- DPRINTK ("ENTER\n");
-
- assert (card != NULL);
-
- /*
- * terminate any existing operations on audio read/write channels
- */
- via_chan_stop (card->baseaddr + VIA_BASE0_PCM_OUT_CHAN);
- via_chan_stop (card->baseaddr + VIA_BASE0_PCM_IN_CHAN);
- via_chan_stop (card->baseaddr + VIA_BASE0_FM_OUT_CHAN);
- if(card->sixchannel)
- via_chan_stop (card->baseaddr + VIA_BASE0_MULTI_OUT_CHAN);
-
- /*
- * clear any existing stops / flags (sanity check mainly)
- */
- via_chan_status_clear (card->baseaddr + VIA_BASE0_PCM_OUT_CHAN);
- via_chan_status_clear (card->baseaddr + VIA_BASE0_PCM_IN_CHAN);
- via_chan_status_clear (card->baseaddr + VIA_BASE0_FM_OUT_CHAN);
- if(card->sixchannel)
- via_chan_status_clear (card->baseaddr + VIA_BASE0_MULTI_OUT_CHAN);
-
- /*
- * clear any enabled interrupt bits
- */
- tmp = inb (card->baseaddr + VIA_BASE0_PCM_OUT_CHAN_TYPE);
- new_tmp = tmp & ~(VIA_IRQ_ON_FLAG|VIA_IRQ_ON_EOL|VIA_RESTART_SGD_ON_EOL);
- if (tmp != new_tmp)
- outb (0, card->baseaddr + VIA_BASE0_PCM_OUT_CHAN_TYPE);
-
- tmp = inb (card->baseaddr + VIA_BASE0_PCM_IN_CHAN_TYPE);
- new_tmp = tmp & ~(VIA_IRQ_ON_FLAG|VIA_IRQ_ON_EOL|VIA_RESTART_SGD_ON_EOL);
- if (tmp != new_tmp)
- outb (0, card->baseaddr + VIA_BASE0_PCM_IN_CHAN_TYPE);
-
- tmp = inb (card->baseaddr + VIA_BASE0_FM_OUT_CHAN_TYPE);
- new_tmp = tmp & ~(VIA_IRQ_ON_FLAG|VIA_IRQ_ON_EOL|VIA_RESTART_SGD_ON_EOL);
- if (tmp != new_tmp)
- outb (0, card->baseaddr + VIA_BASE0_FM_OUT_CHAN_TYPE);
-
- if(card->sixchannel)
- {
- tmp = inb (card->baseaddr + VIA_BASE0_MULTI_OUT_CHAN_TYPE);
- new_tmp = tmp & ~(VIA_IRQ_ON_FLAG|VIA_IRQ_ON_EOL|VIA_RESTART_SGD_ON_EOL);
- if (tmp != new_tmp)
- outb (0, card->baseaddr + VIA_BASE0_MULTI_OUT_CHAN_TYPE);
- }
-
- udelay(10);
-
- /*
- * clear any existing flags
- */
- via_chan_status_clear (card->baseaddr + VIA_BASE0_PCM_OUT_CHAN);
- via_chan_status_clear (card->baseaddr + VIA_BASE0_PCM_IN_CHAN);
- via_chan_status_clear (card->baseaddr + VIA_BASE0_FM_OUT_CHAN);
-
- DPRINTK ("EXIT\n");
-}
-
-
-/**
- * via_set_rate - Set PCM rate for given channel
- * @ac97: Pointer to generic codec info struct
- * @chan: Private info for specified channel
- * @rate: Desired PCM sample rate, in Khz
- *
- * Sets the PCM sample rate for a channel.
- *
- * Values for @rate are clamped to a range of 4000 Khz through 48000 Khz,
- * due to hardware constraints.
- */
-
-static int via_set_rate (struct ac97_codec *ac97,
- struct via_channel *chan, unsigned rate)
-{
- struct via_info *card = ac97->private_data;
- int rate_reg;
- u32 dacp;
- u32 mast_vol, phone_vol, mono_vol, pcm_vol;
- u32 mute_vol = 0x8000; /* The mute volume? -- Seems to work! */
-
- DPRINTK ("ENTER, rate = %d\n", rate);
-
- if (chan->rate == rate)
- goto out;
- if (card->locked_rate) {
- chan->rate = 48000;
- goto out;
- }
-
- if (rate > 48000) rate = 48000;
- if (rate < 4000) rate = 4000;
-
- rate_reg = chan->is_record ? AC97_PCM_LR_ADC_RATE :
- AC97_PCM_FRONT_DAC_RATE;
-
- /* Save current state */
- dacp=via_ac97_read_reg(ac97, AC97_POWER_CONTROL);
- mast_vol = via_ac97_read_reg(ac97, AC97_MASTER_VOL_STEREO);
- mono_vol = via_ac97_read_reg(ac97, AC97_MASTER_VOL_MONO);
- phone_vol = via_ac97_read_reg(ac97, AC97_HEADPHONE_VOL);
- pcm_vol = via_ac97_read_reg(ac97, AC97_PCMOUT_VOL);
- /* Mute - largely reduces popping */
- via_ac97_write_reg(ac97, AC97_MASTER_VOL_STEREO, mute_vol);
- via_ac97_write_reg(ac97, AC97_MASTER_VOL_MONO, mute_vol);
- via_ac97_write_reg(ac97, AC97_HEADPHONE_VOL, mute_vol);
- via_ac97_write_reg(ac97, AC97_PCMOUT_VOL, mute_vol);
- /* Power down the DAC */
- via_ac97_write_reg(ac97, AC97_POWER_CONTROL, dacp|0x0200);
-
- /* Set new rate */
- via_ac97_write_reg (ac97, rate_reg, rate);
-
- /* Power DAC back up */
- via_ac97_write_reg(ac97, AC97_POWER_CONTROL, dacp);
- udelay (200); /* reduces popping */
-
- /* Restore volumes */
- via_ac97_write_reg(ac97, AC97_MASTER_VOL_STEREO, mast_vol);
- via_ac97_write_reg(ac97, AC97_MASTER_VOL_MONO, mono_vol);
- via_ac97_write_reg(ac97, AC97_HEADPHONE_VOL, phone_vol);
- via_ac97_write_reg(ac97, AC97_PCMOUT_VOL, pcm_vol);
-
- /* the hardware might return a value different than what we
- * passed to it, so read the rate value back from hardware
- * to see what we came up with
- */
- chan->rate = via_ac97_read_reg (ac97, rate_reg);
-
- if (chan->rate == 0) {
- card->locked_rate = 1;
- chan->rate = 48000;
- printk (KERN_WARNING PFX "Codec rate locked at 48Khz\n");
- }
-
-out:
- DPRINTK ("EXIT, returning rate %d Hz\n", chan->rate);
- return chan->rate;
-}
-
-
-/****************************************************************
- *
- * Channel-specific operations
- *
- *
- */
-
-
-/**
- * via_chan_init_defaults - Initialize a struct via_channel
- * @card: Private audio chip info
- * @chan: Channel to be initialized
- *
- * Zero @chan, and then set all static defaults for the structure.
- */
-
-static void via_chan_init_defaults (struct via_info *card, struct via_channel *chan)
-{
- memset (chan, 0, sizeof (*chan));
-
- if(card->intmask)
- chan->intmask = 0x23; /* Turn on the IRQ bits */
-
- if (chan == &card->ch_out) {
- chan->name = "PCM-OUT";
- if(card->sixchannel)
- {
- chan->iobase = card->baseaddr + VIA_BASE0_MULTI_OUT_CHAN;
- chan->is_multi = 1;
- DPRINTK("Using multichannel for pcm out\n");
- }
- else
- chan->iobase = card->baseaddr + VIA_BASE0_PCM_OUT_CHAN;
- } else if (chan == &card->ch_in) {
- chan->name = "PCM-IN";
- chan->iobase = card->baseaddr + VIA_BASE0_PCM_IN_CHAN;
- chan->is_record = 1;
- } else if (chan == &card->ch_fm) {
- chan->name = "PCM-OUT-FM";
- chan->iobase = card->baseaddr + VIA_BASE0_FM_OUT_CHAN;
- } else {
- BUG();
- }
-
- init_waitqueue_head (&chan->wait);
-
- chan->pcm_fmt = VIA_PCM_FMT_MASK;
- chan->is_enabled = 1;
-
- chan->frag_number = 0;
- chan->frag_size = 0;
- atomic_set(&chan->n_frags, 0);
- atomic_set (&chan->hw_ptr, 0);
-}
-
-/**
- * via_chan_init - Initialize PCM channel
- * @card: Private audio chip info
- * @chan: Channel to be initialized
- *
- * Performs some of the preparations necessary to begin
- * using a PCM channel.
- *
- * Currently the preparations consist of
- * setting the PCM channel to a known state.
- */
-
-
-static void via_chan_init (struct via_info *card, struct via_channel *chan)
-{
-
- DPRINTK ("ENTER\n");
-
- /* bzero channel structure, and init members to defaults */
- via_chan_init_defaults (card, chan);
-
- /* stop any existing channel output */
- via_chan_clear (card, chan);
- via_chan_status_clear (chan->iobase);
- via_chan_pcm_fmt (chan, 1);
-
- DPRINTK ("EXIT\n");
-}
-
-/**
- * via_chan_buffer_init - Initialize PCM channel buffer
- * @card: Private audio chip info
- * @chan: Channel to be initialized
- *
- * Performs some of the preparations necessary to begin
- * using a PCM channel.
- *
- * Currently the preparations include allocating the
- * scatter-gather DMA table and buffers,
- * and passing the
- * address of the DMA table to the hardware.
- *
- * Note that special care is taken when passing the
- * DMA table address to hardware, because it was found
- * during driver development that the hardware did not
- * always "take" the address.
- */
-
-static int via_chan_buffer_init (struct via_info *card, struct via_channel *chan)
-{
- int page, offset;
- int i;
-
- DPRINTK ("ENTER\n");
-
-
- chan->intmask = 0;
- if(card->intmask)
- chan->intmask = 0x23; /* Turn on the IRQ bits */
-
- if (chan->sgtable != NULL) {
- DPRINTK ("EXIT\n");
- return 0;
- }
-
- /* alloc DMA-able memory for scatter-gather table */
- chan->sgtable = pci_alloc_consistent (card->pdev,
- (sizeof (struct via_sgd_table) * chan->frag_number),
- &chan->sgt_handle);
- if (!chan->sgtable) {
- printk (KERN_ERR PFX "DMA table alloc fail, aborting\n");
- DPRINTK ("EXIT\n");
- return -ENOMEM;
- }
-
- memset ((void*)chan->sgtable, 0,
- (sizeof (struct via_sgd_table) * chan->frag_number));
-
- /* alloc DMA-able memory for scatter-gather buffers */
-
- chan->page_number = (chan->frag_number * chan->frag_size) / PAGE_SIZE +
- (((chan->frag_number * chan->frag_size) % PAGE_SIZE) ? 1 : 0);
-
- for (i = 0; i < chan->page_number; i++) {
- chan->pgtbl[i].cpuaddr = pci_alloc_consistent (card->pdev, PAGE_SIZE,
- &chan->pgtbl[i].handle);
-
- if (!chan->pgtbl[i].cpuaddr) {
- chan->page_number = i;
- goto err_out_nomem;
- }
-
-#ifndef VIA_NDEBUG
- memset (chan->pgtbl[i].cpuaddr, 0xBC, chan->frag_size);
-#endif
-
-#if 1
- DPRINTK ("dmabuf_pg #%d (h=%lx, v2p=%lx, a=%p)\n",
- i, (long)chan->pgtbl[i].handle,
- virt_to_phys(chan->pgtbl[i].cpuaddr),
- chan->pgtbl[i].cpuaddr);
-#endif
- }
-
- for (i = 0; i < chan->frag_number; i++) {
-
- page = i / (PAGE_SIZE / chan->frag_size);
- offset = (i % (PAGE_SIZE / chan->frag_size)) * chan->frag_size;
-
- chan->sgtable[i].count = cpu_to_le32 (chan->frag_size | VIA_FLAG);
- chan->sgtable[i].addr = cpu_to_le32 (chan->pgtbl[page].handle + offset);
-
-#if 1
- DPRINTK ("dmabuf #%d (32(h)=%lx)\n",
- i,
- (long)chan->sgtable[i].addr);
-#endif
- }
-
- /* overwrite the last buffer information */
- chan->sgtable[chan->frag_number - 1].count = cpu_to_le32 (chan->frag_size | VIA_EOL);
-
- /* set location of DMA-able scatter-gather info table */
- DPRINTK ("outl (0x%X, 0x%04lX)\n",
- chan->sgt_handle, chan->iobase + VIA_PCM_TABLE_ADDR);
-
- via_ac97_wait_idle (card);
- outl (chan->sgt_handle, chan->iobase + VIA_PCM_TABLE_ADDR);
- udelay (20);
- via_ac97_wait_idle (card);
- /* load no rate adaption, stereo 16bit, set up ring slots */
- if(card->sixchannel)
- {
- if(!chan->is_multi)
- {
- outl (0xFFFFF | (0x3 << 20) | (chan->frag_number << 24), chan->iobase + VIA_PCM_STOPRATE);
- udelay (20);
- via_ac97_wait_idle (card);
- }
- }
-
- DPRINTK ("inl (0x%lX) = %x\n",
- chan->iobase + VIA_PCM_TABLE_ADDR,
- inl(chan->iobase + VIA_PCM_TABLE_ADDR));
-
- DPRINTK ("EXIT\n");
- return 0;
-
-err_out_nomem:
- printk (KERN_ERR PFX "DMA buffer alloc fail, aborting\n");
- via_chan_buffer_free (card, chan);
- DPRINTK ("EXIT\n");
- return -ENOMEM;
-}
-
-
-/**
- * via_chan_free - Release a PCM channel
- * @card: Private audio chip info
- * @chan: Channel to be released
- *
- * Performs all the functions necessary to clean up
- * an initialized channel.
- *
- * Currently these functions include disabled any
- * active DMA operations, setting the PCM channel
- * back to a known state, and releasing any allocated
- * sound buffers.
- */
-
-static void via_chan_free (struct via_info *card, struct via_channel *chan)
-{
- DPRINTK ("ENTER\n");
-
- spin_lock_irq (&card->lock);
-
- /* stop any existing channel output */
- via_chan_status_clear (chan->iobase);
- via_chan_stop (chan->iobase);
- via_chan_status_clear (chan->iobase);
-
- spin_unlock_irq (&card->lock);
-
- synchronize_irq(card->pdev->irq);
-
- DPRINTK ("EXIT\n");
-}
-
-static void via_chan_buffer_free (struct via_info *card, struct via_channel *chan)
-{
- int i;
-
- DPRINTK ("ENTER\n");
-
- /* zero location of DMA-able scatter-gather info table */
- via_ac97_wait_idle(card);
- outl (0, chan->iobase + VIA_PCM_TABLE_ADDR);
-
- for (i = 0; i < chan->page_number; i++)
- if (chan->pgtbl[i].cpuaddr) {
- pci_free_consistent (card->pdev, PAGE_SIZE,
- chan->pgtbl[i].cpuaddr,
- chan->pgtbl[i].handle);
- chan->pgtbl[i].cpuaddr = NULL;
- chan->pgtbl[i].handle = 0;
- }
-
- chan->page_number = 0;
-
- if (chan->sgtable) {
- pci_free_consistent (card->pdev,
- (sizeof (struct via_sgd_table) * chan->frag_number),
- (void*)chan->sgtable, chan->sgt_handle);
- chan->sgtable = NULL;
- }
-
- DPRINTK ("EXIT\n");
-}
-
-
-/**
- * via_chan_pcm_fmt - Update PCM channel settings
- * @chan: Channel to be updated
- * @reset: Boolean. If non-zero, channel will be reset
- * to 8-bit mono mode.
- *
- * Stores the settings of the current PCM format,
- * 8-bit or 16-bit, and mono/stereo, into the
- * hardware settings for the specified channel.
- * If @reset is non-zero, the channel is reset
- * to 8-bit mono mode. Otherwise, the channel
- * is set to the values stored in the channel
- * information struct @chan.
- */
-
-static void via_chan_pcm_fmt (struct via_channel *chan, int reset)
-{
- DPRINTK ("ENTER, pcm_fmt=0x%02X, reset=%s\n",
- chan->pcm_fmt, reset ? "yes" : "no");
-
- assert (chan != NULL);
-
- if (reset)
- {
- /* reset to 8-bit mono mode */
- chan->pcm_fmt = 0;
- chan->channels = 1;
- }
-
- /* enable interrupts on FLAG and EOL */
- chan->pcm_fmt |= VIA_CHAN_TYPE_MASK;
-
- /* if we are recording, enable recording fifo bit */
- if (chan->is_record)
- chan->pcm_fmt |= VIA_PCM_REC_FIFO;
- /* set interrupt select bits where applicable (PCM in & out channels) */
- if (!chan->is_record)
- chan->pcm_fmt |= VIA_CHAN_TYPE_INT_SELECT;
-
- DPRINTK("SET FMT - %02x %02x\n", chan->intmask , chan->is_multi);
-
- if(chan->intmask)
- {
- u32 m;
-
- /*
- * Channel 0x4 is up to 6 x 16bit and has to be
- * programmed differently
- */
-
- if(chan->is_multi)
- {
- u8 c = 0;
-
- /*
- * Load the type bit for num channels
- * and 8/16bit
- */
-
- if(chan->pcm_fmt & VIA_PCM_FMT_16BIT)
- c = 1 << 7;
- if(chan->pcm_fmt & VIA_PCM_FMT_STEREO)
- c |= (2<<4);
- else
- c |= (1<<4);
-
- outb(c, chan->iobase + VIA_PCM_TYPE);
-
- /*
- * Set the channel steering
- * Mono
- * Channel 0 to slot 3
- * Channel 0 to slot 4
- * Stereo
- * Channel 0 to slot 3
- * Channel 1 to slot 4
- */
-
- switch(chan->channels)
- {
- case 1:
- outl(0xFF000000 | (1<<0) | (1<<4) , chan->iobase + VIA_PCM_STOPRATE);
- break;
- case 2:
- outl(0xFF000000 | (1<<0) | (2<<4) , chan->iobase + VIA_PCM_STOPRATE);
- break;
- case 4:
- outl(0xFF000000 | (1<<0) | (2<<4) | (3<<8) | (4<<12), chan->iobase + VIA_PCM_STOPRATE);
- break;
- case 6:
- outl(0xFF000000 | (1<<0) | (2<<4) | (5<<8) | (6<<12) | (3<<16) | (4<<20), chan->iobase + VIA_PCM_STOPRATE);
- break;
- }
- }
- else
- {
- /*
- * New style, turn off channel volume
- * control, set bits in the right register
- */
- outb(0x0, chan->iobase + VIA_PCM_LEFTVOL);
- outb(0x0, chan->iobase + VIA_PCM_RIGHTVOL);
-
- m = inl(chan->iobase + VIA_PCM_STOPRATE);
- m &= ~(3<<20);
- if(chan->pcm_fmt & VIA_PCM_FMT_STEREO)
- m |= (1 << 20);
- if(chan->pcm_fmt & VIA_PCM_FMT_16BIT)
- m |= (1 << 21);
- outl(m, chan->iobase + VIA_PCM_STOPRATE);
- }
- }
- else
- outb (chan->pcm_fmt, chan->iobase + VIA_PCM_TYPE);
-
-
- DPRINTK ("EXIT, pcm_fmt = 0x%02X, reg = 0x%02X\n",
- chan->pcm_fmt,
- inb (chan->iobase + VIA_PCM_TYPE));
-}
-
-
-/**
- * via_chan_clear - Stop DMA channel operation, and reset pointers
- * @card: the chip to accessed
- * @chan: Channel to be cleared
- *
- * Call via_chan_stop to halt DMA operations, and then resets
- * all software pointers which track DMA operation.
- */
-
-static void via_chan_clear (struct via_info *card, struct via_channel *chan)
-{
- DPRINTK ("ENTER\n");
- via_chan_stop (chan->iobase);
- via_chan_buffer_free(card, chan);
- chan->is_active = 0;
- chan->is_mapped = 0;
- chan->is_enabled = 1;
- chan->slop_len = 0;
- chan->sw_ptr = 0;
- chan->n_irqs = 0;
- atomic_set (&chan->hw_ptr, 0);
- DPRINTK ("EXIT\n");
-}
-
-
-/**
- * via_chan_set_speed - Set PCM sample rate for given channel
- * @card: Private info for specified board
- * @chan: Channel whose sample rate will be adjusted
- * @val: New sample rate, in Khz
- *
- * Helper function for the %SNDCTL_DSP_SPEED ioctl. OSS semantics
- * demand that all audio operations halt (if they are not already
- * halted) when the %SNDCTL_DSP_SPEED is given.
- *
- * This function halts all audio operations for the given channel
- * @chan, and then calls via_set_rate to set the audio hardware
- * to the new rate.
- */
-
-static int via_chan_set_speed (struct via_info *card,
- struct via_channel *chan, int val)
-{
- DPRINTK ("ENTER, requested rate = %d\n", val);
-
- via_chan_clear (card, chan);
-
- val = via_set_rate (card->ac97, chan, val);
-
- DPRINTK ("EXIT, returning %d\n", val);
- return val;
-}
-
-
-/**
- * via_chan_set_fmt - Set PCM sample size for given channel
- * @card: Private info for specified board
- * @chan: Channel whose sample size will be adjusted
- * @val: New sample size, use the %AFMT_xxx constants
- *
- * Helper function for the %SNDCTL_DSP_SETFMT ioctl. OSS semantics
- * demand that all audio operations halt (if they are not already
- * halted) when the %SNDCTL_DSP_SETFMT is given.
- *
- * This function halts all audio operations for the given channel
- * @chan, and then calls via_chan_pcm_fmt to set the audio hardware
- * to the new sample size, either 8-bit or 16-bit.
- */
-
-static int via_chan_set_fmt (struct via_info *card,
- struct via_channel *chan, int val)
-{
- DPRINTK ("ENTER, val=%s\n",
- val == AFMT_U8 ? "AFMT_U8" :
- val == AFMT_S16_LE ? "AFMT_S16_LE" :
- "unknown");
-
- via_chan_clear (card, chan);
-
- assert (val != AFMT_QUERY); /* this case is handled elsewhere */
-
- switch (val) {
- case AFMT_S16_LE:
- if ((chan->pcm_fmt & VIA_PCM_FMT_16BIT) == 0) {
- chan->pcm_fmt |= VIA_PCM_FMT_16BIT;
- via_chan_pcm_fmt (chan, 0);
- }
- break;
-
- case AFMT_U8:
- if (chan->pcm_fmt & VIA_PCM_FMT_16BIT) {
- chan->pcm_fmt &= ~VIA_PCM_FMT_16BIT;
- via_chan_pcm_fmt (chan, 0);
- }
- break;
-
- default:
- DPRINTK ("unknown AFMT: 0x%X\n", val);
- val = AFMT_S16_LE;
- }
-
- DPRINTK ("EXIT\n");
- return val;
-}
-
-
-/**
- * via_chan_set_stereo - Enable or disable stereo for a DMA channel
- * @card: Private info for specified board
- * @chan: Channel whose stereo setting will be adjusted
- * @val: New sample size, use the %AFMT_xxx constants
- *
- * Helper function for the %SNDCTL_DSP_CHANNELS and %SNDCTL_DSP_STEREO ioctls. OSS semantics
- * demand that all audio operations halt (if they are not already
- * halted) when %SNDCTL_DSP_CHANNELS or SNDCTL_DSP_STEREO is given.
- *
- * This function halts all audio operations for the given channel
- * @chan, and then calls via_chan_pcm_fmt to set the audio hardware
- * to enable or disable stereo.
- */
-
-static int via_chan_set_stereo (struct via_info *card,
- struct via_channel *chan, int val)
-{
- DPRINTK ("ENTER, channels = %d\n", val);
-
- via_chan_clear (card, chan);
-
- switch (val) {
-
- /* mono */
- case 1:
- chan->pcm_fmt &= ~VIA_PCM_FMT_STEREO;
- chan->channels = 1;
- via_chan_pcm_fmt (chan, 0);
- break;
-
- /* stereo */
- case 2:
- chan->pcm_fmt |= VIA_PCM_FMT_STEREO;
- chan->channels = 2;
- via_chan_pcm_fmt (chan, 0);
- break;
-
- case 4:
- case 6:
- if(chan->is_multi)
- {
- chan->pcm_fmt |= VIA_PCM_FMT_STEREO;
- chan->channels = val;
- break;
- }
- /* unknown */
- default:
- val = -EINVAL;
- break;
- }
-
- DPRINTK ("EXIT, returning %d\n", val);
- return val;
-}
-
-static int via_chan_set_buffering (struct via_info *card,
- struct via_channel *chan, int val)
-{
- int shift;
-
- DPRINTK ("ENTER\n");
-
- /* in both cases the buffer cannot be changed */
- if (chan->is_active || chan->is_mapped) {
- DPRINTK ("EXIT\n");
- return -EINVAL;
- }
-
- /* called outside SETFRAGMENT */
- /* set defaults or do nothing */
- if (val < 0) {
-
- if (chan->frag_size && chan->frag_number)
- goto out;
-
- DPRINTK ("\n");
-
- chan->frag_size = (VIA_DEFAULT_FRAG_TIME * chan->rate * chan->channels
- * ((chan->pcm_fmt & VIA_PCM_FMT_16BIT) ? 2 : 1)) / 1000 - 1;
-
- shift = 0;
- while (chan->frag_size) {
- chan->frag_size >>= 1;
- shift++;
- }
- chan->frag_size = 1 << shift;
-
- chan->frag_number = (VIA_DEFAULT_BUFFER_TIME / VIA_DEFAULT_FRAG_TIME);
-
- DPRINTK ("setting default values %d %d\n", chan->frag_size, chan->frag_number);
- } else {
- chan->frag_size = 1 << (val & 0xFFFF);
- chan->frag_number = (val >> 16) & 0xFFFF;
-
- DPRINTK ("using user values %d %d\n", chan->frag_size, chan->frag_number);
- }
-
- /* quake3 wants frag_number to be a power of two */
- shift = 0;
- while (chan->frag_number) {
- chan->frag_number >>= 1;
- shift++;
- }
- chan->frag_number = 1 << shift;
-
- if (chan->frag_size > VIA_MAX_FRAG_SIZE)
- chan->frag_size = VIA_MAX_FRAG_SIZE;
- else if (chan->frag_size < VIA_MIN_FRAG_SIZE)
- chan->frag_size = VIA_MIN_FRAG_SIZE;
-
- if (chan->frag_number < VIA_MIN_FRAG_NUMBER)
- chan->frag_number = VIA_MIN_FRAG_NUMBER;
- if (chan->frag_number > VIA_MAX_FRAG_NUMBER)
- chan->frag_number = VIA_MAX_FRAG_NUMBER;
-
- if ((chan->frag_number * chan->frag_size) / PAGE_SIZE > VIA_MAX_BUFFER_DMA_PAGES)
- chan->frag_number = (VIA_MAX_BUFFER_DMA_PAGES * PAGE_SIZE) / chan->frag_size;
-
-out:
- if (chan->is_record)
- atomic_set (&chan->n_frags, 0);
- else
- atomic_set (&chan->n_frags, chan->frag_number);
-
- DPRINTK ("EXIT\n");
-
- return 0;
-}
-
-#ifdef VIA_CHAN_DUMP_BUFS
-/**
- * via_chan_dump_bufs - Display DMA table contents
- * @chan: Channel whose DMA table will be displayed
- *
- * Debugging function which displays the contents of the
- * scatter-gather DMA table for the given channel @chan.
- */
-
-static void via_chan_dump_bufs (struct via_channel *chan)
-{
- int i;
-
- for (i = 0; i < chan->frag_number; i++) {
- DPRINTK ("#%02d: addr=%x, count=%u, flag=%d, eol=%d\n",
- i, chan->sgtable[i].addr,
- chan->sgtable[i].count & 0x00FFFFFF,
- chan->sgtable[i].count & VIA_FLAG ? 1 : 0,
- chan->sgtable[i].count & VIA_EOL ? 1 : 0);
- }
- DPRINTK ("buf_in_use = %d, nextbuf = %d\n",
- atomic_read (&chan->buf_in_use),
- atomic_read (&chan->sw_ptr));
-}
-#endif /* VIA_CHAN_DUMP_BUFS */
-
-
-/**
- * via_chan_flush_frag - Flush partially-full playback buffer to hardware
- * @chan: Channel whose DMA table will be flushed
- *
- * Flushes partially-full playback buffer to hardware.
- */
-
-static void via_chan_flush_frag (struct via_channel *chan)
-{
- DPRINTK ("ENTER\n");
-
- assert (chan->slop_len > 0);
-
- if (chan->sw_ptr == (chan->frag_number - 1))
- chan->sw_ptr = 0;
- else
- chan->sw_ptr++;
-
- chan->slop_len = 0;
-
- assert (atomic_read (&chan->n_frags) > 0);
- atomic_dec (&chan->n_frags);
-
- DPRINTK ("EXIT\n");
-}
-
-
-
-/**
- * via_chan_maybe_start - Initiate audio hardware DMA operation
- * @chan: Channel whose DMA is to be started
- *
- * Initiate DMA operation, if the DMA engine for the given
- * channel @chan is not already active.
- */
-
-static inline void via_chan_maybe_start (struct via_channel *chan)
-{
- assert (chan->is_active == sg_active(chan->iobase));
-
- DPRINTK ("MAYBE START %s\n", chan->name);
- if (!chan->is_active && chan->is_enabled) {
- chan->is_active = 1;
- sg_begin (chan);
- DPRINTK ("starting channel %s\n", chan->name);
- }
-}
-
-
-/****************************************************************
- *
- * Interface to ac97-codec module
- *
- *
- */
-
-/**
- * via_ac97_wait_idle - Wait until AC97 codec is not busy
- * @card: Private info for specified board
- *
- * Sleep until the AC97 codec is no longer busy.
- * Returns the final value read from the SGD
- * register being polled.
- */
-
-static u8 via_ac97_wait_idle (struct via_info *card)
-{
- u8 tmp8;
- int counter = VIA_COUNTER_LIMIT;
-
- DPRINTK ("ENTER/EXIT\n");
-
- assert (card != NULL);
- assert (card->pdev != NULL);
-
- do {
- udelay (15);
-
- tmp8 = inb (card->baseaddr + 0x83);
- } while ((tmp8 & VIA_CR83_BUSY) && (counter-- > 0));
-
- if (tmp8 & VIA_CR83_BUSY)
- printk (KERN_WARNING PFX "timeout waiting on AC97 codec\n");
- return tmp8;
-}
-
-
-/**
- * via_ac97_read_reg - Read AC97 standard register
- * @codec: Pointer to generic AC97 codec info
- * @reg: Index of AC97 register to be read
- *
- * Read the value of a single AC97 codec register,
- * as defined by the Intel AC97 specification.
- *
- * Defines the standard AC97 read-register operation
- * required by the kernel's ac97_codec interface.
- *
- * Returns the 16-bit value stored in the specified
- * register.
- */
-
-static u16 via_ac97_read_reg (struct ac97_codec *codec, u8 reg)
-{
- unsigned long data;
- struct via_info *card;
- int counter;
-
- DPRINTK ("ENTER\n");
-
- assert (codec != NULL);
- assert (codec->private_data != NULL);
-
- card = codec->private_data;
-
- spin_lock(&card->ac97_lock);
-
- /* Every time we write to register 80 we cause a transaction.
- The only safe way to clear the valid bit is to write it at
- the same time as the command */
- data = (reg << 16) | VIA_CR80_READ | VIA_CR80_VALID;
-
- outl (data, card->baseaddr + VIA_BASE0_AC97_CTRL);
- udelay (20);
-
- for (counter = VIA_COUNTER_LIMIT; counter > 0; counter--) {
- udelay (1);
- if ((((data = inl(card->baseaddr + VIA_BASE0_AC97_CTRL)) &
- (VIA_CR80_VALID|VIA_CR80_BUSY)) == VIA_CR80_VALID))
- goto out;
- }
-
- printk (KERN_WARNING PFX "timeout while reading AC97 codec (0x%lX)\n", data);
- goto err_out;
-
-out:
- /* Once the valid bit has become set, we must wait a complete AC97
- frame before the data has settled. */
- udelay(25);
- data = (unsigned long) inl (card->baseaddr + VIA_BASE0_AC97_CTRL);
-
- outb (0x02, card->baseaddr + 0x83);
-
- if (((data & 0x007F0000) >> 16) == reg) {
- DPRINTK ("EXIT, success, data=0x%lx, retval=0x%lx\n",
- data, data & 0x0000FFFF);
- spin_unlock(&card->ac97_lock);
- return data & 0x0000FFFF;
- }
-
- printk (KERN_WARNING "via82cxxx_audio: not our index: reg=0x%x, newreg=0x%lx\n",
- reg, ((data & 0x007F0000) >> 16));
-
-err_out:
- spin_unlock(&card->ac97_lock);
- DPRINTK ("EXIT, returning 0\n");
- return 0;
-}
-
-
-/**
- * via_ac97_write_reg - Write AC97 standard register
- * @codec: Pointer to generic AC97 codec info
- * @reg: Index of AC97 register to be written
- * @value: Value to be written to AC97 register
- *
- * Write the value of a single AC97 codec register,
- * as defined by the Intel AC97 specification.
- *
- * Defines the standard AC97 write-register operation
- * required by the kernel's ac97_codec interface.
- */
-
-static void via_ac97_write_reg (struct ac97_codec *codec, u8 reg, u16 value)
-{
- u32 data;
- struct via_info *card;
- int counter;
-
- DPRINTK ("ENTER\n");
-
- assert (codec != NULL);
- assert (codec->private_data != NULL);
-
- card = codec->private_data;
-
- spin_lock(&card->ac97_lock);
-
- data = (reg << 16) + value;
- outl (data, card->baseaddr + VIA_BASE0_AC97_CTRL);
- udelay (10);
-
- for (counter = VIA_COUNTER_LIMIT; counter > 0; counter--) {
- if ((inb (card->baseaddr + 0x83) & VIA_CR83_BUSY) == 0)
- goto out;
-
- udelay (15);
- }
-
- printk (KERN_WARNING PFX "timeout after AC97 codec write (0x%X, 0x%X)\n", reg, value);
-
-out:
- spin_unlock(&card->ac97_lock);
- DPRINTK ("EXIT\n");
-}
-
-
-static int via_mixer_open (struct inode *inode, struct file *file)
-{
- int minor = iminor(inode);
- struct via_info *card;
- struct pci_dev *pdev = NULL;
- struct pci_driver *drvr;
-
- DPRINTK ("ENTER\n");
-
- while ((pdev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, pdev)) != NULL) {
- drvr = pci_dev_driver (pdev);
- if (drvr == &via_driver) {
- assert (pci_get_drvdata (pdev) != NULL);
-
- card = pci_get_drvdata (pdev);
- if (card->ac97->dev_mixer == minor)
- goto match;
- }
- }
-
- DPRINTK ("EXIT, returning -ENODEV\n");
- return -ENODEV;
-
-match:
- pci_dev_put(pdev);
- file->private_data = card->ac97;
-
- DPRINTK ("EXIT, returning 0\n");
- return nonseekable_open(inode, file);
-}
-
-static int via_mixer_ioctl (struct inode *inode, struct file *file, unsigned int cmd,
- unsigned long arg)
-{
- struct ac97_codec *codec = file->private_data;
- struct via_info *card;
- int nonblock = (file->f_flags & O_NONBLOCK);
- int rc;
-
- DPRINTK ("ENTER\n");
-
- assert (codec != NULL);
- card = codec->private_data;
- assert (card != NULL);
-
- rc = via_syscall_down (card, nonblock);
- if (rc) goto out;
-
-#if 0
- /*
- * Intercept volume control on 8233 and 8235
- */
- if(card->volume)
- {
- switch(cmd)
- {
- case SOUND_MIXER_READ_VOLUME:
- return card->mixer_vol;
- case SOUND_MIXER_WRITE_VOLUME:
- {
- int v;
- if(get_user(v, (int *)arg))
- {
- rc = -EFAULT;
- goto out;
- }
- card->mixer_vol = v;
- }
- }
- }
-#endif
- rc = codec->mixer_ioctl(codec, cmd, arg);
-
- mutex_unlock(&card->syscall_mutex);
-
-out:
- DPRINTK ("EXIT, returning %d\n", rc);
- return rc;
-}
-
-
-static const struct file_operations via_mixer_fops = {
- .owner = THIS_MODULE,
- .open = via_mixer_open,
- .llseek = no_llseek,
- .ioctl = via_mixer_ioctl,
-};
-
-
-static int __devinit via_ac97_reset (struct via_info *card)
-{
- struct pci_dev *pdev = card->pdev;
- u8 tmp8;
- u16 tmp16;
-
- DPRINTK ("ENTER\n");
-
- assert (pdev != NULL);
-
-#ifndef NDEBUG
- {
- u8 r40,r41,r42,r43,r44,r48;
- pci_read_config_byte (card->pdev, 0x40, &r40);
- pci_read_config_byte (card->pdev, 0x41, &r41);
- pci_read_config_byte (card->pdev, 0x42, &r42);
- pci_read_config_byte (card->pdev, 0x43, &r43);
- pci_read_config_byte (card->pdev, 0x44, &r44);
- pci_read_config_byte (card->pdev, 0x48, &r48);
- DPRINTK ("PCI config: %02X %02X %02X %02X %02X %02X\n",
- r40,r41,r42,r43,r44,r48);
-
- spin_lock_irq (&card->lock);
- DPRINTK ("regs==%02X %02X %02X %08X %08X %08X %08X\n",
- inb (card->baseaddr + 0x00),
- inb (card->baseaddr + 0x01),
- inb (card->baseaddr + 0x02),
- inl (card->baseaddr + 0x04),
- inl (card->baseaddr + 0x0C),
- inl (card->baseaddr + 0x80),
- inl (card->baseaddr + 0x84));
- spin_unlock_irq (&card->lock);
-
- }
-#endif
-
- /*
- * Reset AC97 controller: enable, disable, enable,
- * pausing after each command for good luck. Only
- * do this if the codec is not ready, because it causes
- * loud pops and such due to such a hard codec reset.
- */
- pci_read_config_byte (pdev, VIA_ACLINK_STATUS, &tmp8);
- if ((tmp8 & VIA_CR40_AC97_READY) == 0) {
- pci_write_config_byte (pdev, VIA_ACLINK_CTRL,
- VIA_CR41_AC97_ENABLE |
- VIA_CR41_AC97_RESET |
- VIA_CR41_AC97_WAKEUP);
- udelay (100);
-
- pci_write_config_byte (pdev, VIA_ACLINK_CTRL, 0);
- udelay (100);
-
- pci_write_config_byte (pdev, VIA_ACLINK_CTRL,
- VIA_CR41_AC97_ENABLE |
- VIA_CR41_PCM_ENABLE |
- VIA_CR41_VRA | VIA_CR41_AC97_RESET);
- udelay (100);
- }
-
- /* Make sure VRA is enabled, in case we didn't do a
- * complete codec reset, above
- */
- pci_read_config_byte (pdev, VIA_ACLINK_CTRL, &tmp8);
- if (((tmp8 & VIA_CR41_VRA) == 0) ||
- ((tmp8 & VIA_CR41_AC97_ENABLE) == 0) ||
- ((tmp8 & VIA_CR41_PCM_ENABLE) == 0) ||
- ((tmp8 & VIA_CR41_AC97_RESET) == 0)) {
- pci_write_config_byte (pdev, VIA_ACLINK_CTRL,
- VIA_CR41_AC97_ENABLE |
- VIA_CR41_PCM_ENABLE |
- VIA_CR41_VRA | VIA_CR41_AC97_RESET);
- udelay (100);
- }
-
- if(card->legacy)
- {
-#if 0 /* this breaks on K7M */
- /* disable legacy stuff */
- pci_write_config_byte (pdev, 0x42, 0x00);
- udelay(10);
-#endif
-
- /* route FM trap to IRQ, disable FM trap */
- pci_write_config_byte (pdev, 0x48, 0x05);
- udelay(10);
- }
-
- /* disable all codec GPI interrupts */
- outl (0, pci_resource_start (pdev, 0) + 0x8C);
-
- /* WARNING: this line is magic. Remove this
- * and things break. */
- /* enable variable rate */
- tmp16 = via_ac97_read_reg (card->ac97, AC97_EXTENDED_STATUS);
- if ((tmp16 & 1) == 0)
- via_ac97_write_reg (card->ac97, AC97_EXTENDED_STATUS, tmp16 | 1);
-
- DPRINTK ("EXIT, returning 0\n");
- return 0;
-}
-
-
-static void via_ac97_codec_wait (struct ac97_codec *codec)
-{
- assert (codec->private_data != NULL);
- via_ac97_wait_idle (codec->private_data);
-}
-
-
-static int __devinit via_ac97_init (struct via_info *card)
-{
- int rc;
- u16 tmp16;
-
- DPRINTK ("ENTER\n");
-
- assert (card != NULL);
-
- card->ac97 = ac97_alloc_codec();
- if(card->ac97 == NULL)
- return -ENOMEM;
-
- card->ac97->private_data = card;
- card->ac97->codec_read = via_ac97_read_reg;
- card->ac97->codec_write = via_ac97_write_reg;
- card->ac97->codec_wait = via_ac97_codec_wait;
-
- card->ac97->dev_mixer = register_sound_mixer (&via_mixer_fops, -1);
- if (card->ac97->dev_mixer < 0) {
- printk (KERN_ERR PFX "unable to register AC97 mixer, aborting\n");
- DPRINTK ("EXIT, returning -EIO\n");
- ac97_release_codec(card->ac97);
- return -EIO;
- }
-
- rc = via_ac97_reset (card);
- if (rc) {
- printk (KERN_ERR PFX "unable to reset AC97 codec, aborting\n");
- goto err_out;
- }
-
- mdelay(10);
-
- if (ac97_probe_codec (card->ac97) == 0) {
- printk (KERN_ERR PFX "unable to probe AC97 codec, aborting\n");
- rc = -EIO;
- goto err_out;
- }
-
- /* enable variable rate */
- tmp16 = via_ac97_read_reg (card->ac97, AC97_EXTENDED_STATUS);
- via_ac97_write_reg (card->ac97, AC97_EXTENDED_STATUS, tmp16 | 1);
-
- /*
- * If we cannot enable VRA, we have a locked-rate codec.
- * We try again to enable VRA before assuming so, however.
- */
- tmp16 = via_ac97_read_reg (card->ac97, AC97_EXTENDED_STATUS);
- if ((tmp16 & 1) == 0) {
- via_ac97_write_reg (card->ac97, AC97_EXTENDED_STATUS, tmp16 | 1);
- tmp16 = via_ac97_read_reg (card->ac97, AC97_EXTENDED_STATUS);
- if ((tmp16 & 1) == 0) {
- card->locked_rate = 1;
- printk (KERN_WARNING PFX "Codec rate locked at 48Khz\n");
- }
- }
-
- DPRINTK ("EXIT, returning 0\n");
- return 0;
-
-err_out:
- unregister_sound_mixer (card->ac97->dev_mixer);
- DPRINTK ("EXIT, returning %d\n", rc);
- ac97_release_codec(card->ac97);
- return rc;
-}
-
-
-static void via_ac97_cleanup (struct via_info *card)
-{
- DPRINTK ("ENTER\n");
-
- assert (card != NULL);
- assert (card->ac97->dev_mixer >= 0);
-
- unregister_sound_mixer (card->ac97->dev_mixer);
- ac97_release_codec(card->ac97);
-
- DPRINTK ("EXIT\n");
-}
-
-
-
-/****************************************************************
- *
- * Interrupt-related code
- *
- */
-
-/**
- * via_intr_channel - handle an interrupt for a single channel
- * @card: unused
- * @chan: handle interrupt for this channel
- *
- * This is the "meat" of the interrupt handler,
- * containing the actions taken each time an interrupt
- * occurs. All communication and coordination with
- * userspace takes place here.
- *
- * Locking: inside card->lock
- */
-
-static void via_intr_channel (struct via_info *card, struct via_channel *chan)
-{
- u8 status;
- int n;
-
- /* check pertinent bits of status register for action bits */
- status = inb (chan->iobase) & (VIA_SGD_FLAG | VIA_SGD_EOL | VIA_SGD_STOPPED);
- if (!status)
- return;
-
- /* acknowledge any flagged bits ASAP */
- outb (status, chan->iobase);
-
- if (!chan->sgtable) /* XXX: temporary solution */
- return;
-
- /* grab current h/w ptr value */
- n = atomic_read (&chan->hw_ptr);
-
- /* sanity check: make sure our h/w ptr doesn't have a weird value */
- assert (n >= 0);
- assert (n < chan->frag_number);
-
-
- /* reset SGD data structure in memory to reflect a full buffer,
- * and advance the h/w ptr, wrapping around to zero if needed
- */
- if (n == (chan->frag_number - 1)) {
- chan->sgtable[n].count = cpu_to_le32(chan->frag_size | VIA_EOL);
- atomic_set (&chan->hw_ptr, 0);
- } else {
- chan->sgtable[n].count = cpu_to_le32(chan->frag_size | VIA_FLAG);
- atomic_inc (&chan->hw_ptr);
- }
-
- /* accounting crap for SNDCTL_DSP_GETxPTR */
- chan->n_irqs++;
- chan->bytes += chan->frag_size;
- /* FIXME - signed overflow is undefined */
- if (chan->bytes < 0) /* handle overflow of 31-bit value */
- chan->bytes = chan->frag_size;
- /* all following checks only occur when not in mmap(2) mode */
- if (!chan->is_mapped)
- {
- /* If we are recording, then n_frags represents the number
- * of fragments waiting to be handled by userspace.
- * If we are playback, then n_frags represents the number
- * of fragments remaining to be filled by userspace.
- * We increment here. If we reach max number of fragments,
- * this indicates an underrun/overrun. For this case under OSS,
- * we stop the record/playback process.
- */
- if (atomic_read (&chan->n_frags) < chan->frag_number)
- atomic_inc (&chan->n_frags);
- assert (atomic_read (&chan->n_frags) <= chan->frag_number);
- if (atomic_read (&chan->n_frags) == chan->frag_number) {
- chan->is_active = 0;
- via_chan_stop (chan->iobase);
- }
- }
- /* wake up anyone listening to see when interrupts occur */
- wake_up_all (&chan->wait);
-
- DPRINTK ("%s intr, status=0x%02X, hwptr=0x%lX, chan->hw_ptr=%d\n",
- chan->name, status, (long) inl (chan->iobase + 0x04),
- atomic_read (&chan->hw_ptr));
-
- DPRINTK ("%s intr, channel n_frags == %d, missed %d\n", chan->name,
- atomic_read (&chan->n_frags), missed);
-}
-
-
-static irqreturn_t via_interrupt(int irq, void *dev_id)
-{
- struct via_info *card = dev_id;
- u32 status32;
-
- /* to minimize interrupt sharing costs, we use the SGD status
- * shadow register to check the status of all inputs and
- * outputs with a single 32-bit bus read. If no interrupt
- * conditions are flagged, we exit immediately
- */
- status32 = inl (card->baseaddr + VIA_BASE0_SGD_STATUS_SHADOW);
- if (!(status32 & VIA_INTR_MASK))
- {
-#ifdef CONFIG_MIDI_VIA82CXXX
- if (card->midi_devc)
- uart401intr(irq, card->midi_devc);
-#endif
- return IRQ_HANDLED;
- }
- DPRINTK ("intr, status32 == 0x%08X\n", status32);
-
- /* synchronize interrupt handling under SMP. this spinlock
- * goes away completely on UP
- */
- spin_lock (&card->lock);
-
- if (status32 & VIA_INTR_OUT)
- via_intr_channel (card, &card->ch_out);
- if (status32 & VIA_INTR_IN)
- via_intr_channel (card, &card->ch_in);
- if (status32 & VIA_INTR_FM)
- via_intr_channel (card, &card->ch_fm);
-
- spin_unlock (&card->lock);
-
- return IRQ_HANDLED;
-}
-
-static irqreturn_t via_new_interrupt(int irq, void *dev_id)
-{
- struct via_info *card = dev_id;
- u32 status32;
-
- /* to minimize interrupt sharing costs, we use the SGD status
- * shadow register to check the status of all inputs and
- * outputs with a single 32-bit bus read. If no interrupt
- * conditions are flagged, we exit immediately
- */
- status32 = inl (card->baseaddr + VIA_BASE0_SGD_STATUS_SHADOW);
- if (!(status32 & VIA_NEW_INTR_MASK))
- return IRQ_NONE;
- /*
- * goes away completely on UP
- */
- spin_lock (&card->lock);
-
- via_intr_channel (card, &card->ch_out);
- via_intr_channel (card, &card->ch_in);
- via_intr_channel (card, &card->ch_fm);
-
- spin_unlock (&card->lock);
- return IRQ_HANDLED;
-}
-
-
-/**
- * via_interrupt_init - Initialize interrupt handling
- * @card: Private info for specified board
- *
- * Obtain and reserve IRQ for using in handling audio events.
- * Also, disable any IRQ-generating resources, to make sure
- * we don't get interrupts before we want them.
- */
-
-static int via_interrupt_init (struct via_info *card)
-{
- u8 tmp8;
-
- DPRINTK ("ENTER\n");
-
- assert (card != NULL);
- assert (card->pdev != NULL);
-
- /* check for sane IRQ number. can this ever happen? */
- if (card->pdev->irq < 2) {
- printk (KERN_ERR PFX "insane IRQ %d, aborting\n",
- card->pdev->irq);
- DPRINTK ("EXIT, returning -EIO\n");
- return -EIO;
- }
-
- /* VIA requires this is done */
- pci_write_config_byte(card->pdev, PCI_INTERRUPT_LINE, card->pdev->irq);
-
- if(card->legacy)
- {
- /* make sure FM irq is not routed to us */
- pci_read_config_byte (card->pdev, VIA_FM_NMI_CTRL, &tmp8);
- if ((tmp8 & VIA_CR48_FM_TRAP_TO_NMI) == 0) {
- tmp8 |= VIA_CR48_FM_TRAP_TO_NMI;
- pci_write_config_byte (card->pdev, VIA_FM_NMI_CTRL, tmp8);
- }
- if (request_irq (card->pdev->irq, via_interrupt, IRQF_SHARED, VIA_MODULE_NAME, card)) {
- printk (KERN_ERR PFX "unable to obtain IRQ %d, aborting\n",
- card->pdev->irq);
- DPRINTK ("EXIT, returning -EBUSY\n");
- return -EBUSY;
- }
- }
- else
- {
- if (request_irq (card->pdev->irq, via_new_interrupt, IRQF_SHARED, VIA_MODULE_NAME, card)) {
- printk (KERN_ERR PFX "unable to obtain IRQ %d, aborting\n",
- card->pdev->irq);
- DPRINTK ("EXIT, returning -EBUSY\n");
- return -EBUSY;
- }
- }
-
- DPRINTK ("EXIT, returning 0\n");
- return 0;
-}
-
-
-/****************************************************************
- *
- * OSS DSP device
- *
- */
-
-static const struct file_operations via_dsp_fops = {
- .owner = THIS_MODULE,
- .open = via_dsp_open,
- .release = via_dsp_release,
- .read = via_dsp_read,
- .write = via_dsp_write,
- .poll = via_dsp_poll,
- .llseek = no_llseek,
- .ioctl = via_dsp_ioctl,
- .mmap = via_dsp_mmap,
-};
-
-
-static int __devinit via_dsp_init (struct via_info *card)
-{
- u8 tmp8;
-
- DPRINTK ("ENTER\n");
-
- assert (card != NULL);
-
- if(card->legacy)
- {
- /* turn off legacy features, if not already */
- pci_read_config_byte (card->pdev, VIA_FUNC_ENABLE, &tmp8);
- if (tmp8 & (VIA_CR42_SB_ENABLE | VIA_CR42_FM_ENABLE)) {
- tmp8 &= ~(VIA_CR42_SB_ENABLE | VIA_CR42_FM_ENABLE);
- pci_write_config_byte (card->pdev, VIA_FUNC_ENABLE, tmp8);
- }
- }
-
- via_stop_everything (card);
-
- card->dev_dsp = register_sound_dsp (&via_dsp_fops, -1);
- if (card->dev_dsp < 0) {
- DPRINTK ("EXIT, returning -ENODEV\n");
- return -ENODEV;
- }
- DPRINTK ("EXIT, returning 0\n");
- return 0;
-}
-
-
-static void via_dsp_cleanup (struct via_info *card)
-{
- DPRINTK ("ENTER\n");
-
- assert (card != NULL);
- assert (card->dev_dsp >= 0);
-
- via_stop_everything (card);
-
- unregister_sound_dsp (card->dev_dsp);
-
- DPRINTK ("EXIT\n");
-}
-
-
-static struct page * via_mm_nopage (struct vm_area_struct * vma,
- unsigned long address, int *type)
-{
- struct via_info *card = vma->vm_private_data;
- struct via_channel *chan = &card->ch_out;
- unsigned long max_bufs;
- struct page *dmapage;
- unsigned long pgoff;
- int rd, wr;
-
- DPRINTK ("ENTER, start %lXh, ofs %lXh, pgoff %ld, addr %lXh\n",
- vma->vm_start,
- address - vma->vm_start,
- (address - vma->vm_start) >> PAGE_SHIFT,
- address);
-
- if (address > vma->vm_end) {
- DPRINTK ("EXIT, returning NOPAGE_SIGBUS\n");
- return NOPAGE_SIGBUS; /* Disallow mremap */
- }
- if (!card) {
- DPRINTK ("EXIT, returning NOPAGE_SIGBUS\n");
- return NOPAGE_SIGBUS; /* Nothing allocated */
- }
-
- pgoff = vma->vm_pgoff + ((address - vma->vm_start) >> PAGE_SHIFT);
- rd = card->ch_in.is_mapped;
- wr = card->ch_out.is_mapped;
-
- max_bufs = chan->frag_number;
- if (rd && wr)
- max_bufs *= 2;
- if (pgoff >= max_bufs)
- return NOPAGE_SIGBUS;
-
- /* if full-duplex (read+write) and we have two sets of bufs,
- * then the playback buffers come first, sez soundcard.c */
- if (pgoff >= chan->page_number) {
- pgoff -= chan->page_number;
- chan = &card->ch_in;
- } else if (!wr)
- chan = &card->ch_in;
-
- assert ((((unsigned long)chan->pgtbl[pgoff].cpuaddr) % PAGE_SIZE) == 0);
-
- dmapage = virt_to_page (chan->pgtbl[pgoff].cpuaddr);
- DPRINTK ("EXIT, returning page %p for cpuaddr %lXh\n",
- dmapage, (unsigned long) chan->pgtbl[pgoff].cpuaddr);
- get_page (dmapage);
- if (type)
- *type = VM_FAULT_MINOR;
- return dmapage;
-}
-
-
-#ifndef VM_RESERVED
-static int via_mm_swapout (struct page *page, struct file *filp)
-{
- return 0;
-}
-#endif /* VM_RESERVED */
-
-
-static struct vm_operations_struct via_mm_ops = {
- .nopage = via_mm_nopage,
-
-#ifndef VM_RESERVED
- .swapout = via_mm_swapout,
-#endif
-};
-
-
-static int via_dsp_mmap(struct file *file, struct vm_area_struct *vma)
-{
- struct via_info *card;
- int nonblock = (file->f_flags & O_NONBLOCK);
- int rc = -EINVAL, rd=0, wr=0;
- unsigned long max_size, size, start, offset;
-
- assert (file != NULL);
- assert (vma != NULL);
- card = file->private_data;
- assert (card != NULL);
-
- DPRINTK ("ENTER, start %lXh, size %ld, pgoff %ld\n",
- vma->vm_start,
- vma->vm_end - vma->vm_start,
- vma->vm_pgoff);
-
- max_size = 0;
- if (vma->vm_flags & VM_READ) {
- rd = 1;
- via_chan_set_buffering(card, &card->ch_in, -1);
- via_chan_buffer_init (card, &card->ch_in);
- max_size += card->ch_in.page_number << PAGE_SHIFT;
- }
- if (vma->vm_flags & VM_WRITE) {
- wr = 1;
- via_chan_set_buffering(card, &card->ch_out, -1);
- via_chan_buffer_init (card, &card->ch_out);
- max_size += card->ch_out.page_number << PAGE_SHIFT;
- }
-
- start = vma->vm_start;
- offset = (vma->vm_pgoff << PAGE_SHIFT);
- size = vma->vm_end - vma->vm_start;
-
- /* some basic size/offset sanity checks */
- if (size > max_size)
- goto out;
- if (offset > max_size - size)
- goto out;
-
- rc = via_syscall_down (card, nonblock);
- if (rc) goto out;
-
- vma->vm_ops = &via_mm_ops;
- vma->vm_private_data = card;
-
-#ifdef VM_RESERVED
- vma->vm_flags |= VM_RESERVED;
-#endif
-
- if (rd)
- card->ch_in.is_mapped = 1;
- if (wr)
- card->ch_out.is_mapped = 1;
-
- mutex_unlock(&card->syscall_mutex);
- rc = 0;
-
-out:
- DPRINTK ("EXIT, returning %d\n", rc);
- return rc;
-}
-
-
-static ssize_t via_dsp_do_read (struct via_info *card,
- char __user *userbuf, size_t count,
- int nonblock)
-{
- DECLARE_WAITQUEUE(wait, current);
- const char __user *orig_userbuf = userbuf;
- struct via_channel *chan = &card->ch_in;
- size_t size;
- int n, tmp;
- ssize_t ret = 0;
-
- /* if SGD has not yet been started, start it */
- via_chan_maybe_start (chan);
-
-handle_one_block:
- /* just to be a nice neighbor */
- /* Thomas Sailer:
- * But also to ourselves, release semaphore if we do so */
- if (need_resched()) {
- mutex_unlock(&card->syscall_mutex);
- schedule ();
- ret = via_syscall_down (card, nonblock);
- if (ret)
- goto out;
- }
-
- /* grab current channel software pointer. In the case of
- * recording, this is pointing to the next buffer that
- * will receive data from the audio hardware.
- */
- n = chan->sw_ptr;
-
- /* n_frags represents the number of fragments waiting
- * to be copied to userland. sleep until at least
- * one buffer has been read from the audio hardware.
- */
- add_wait_queue(&chan->wait, &wait);
- for (;;) {
- __set_current_state(TASK_INTERRUPTIBLE);
- tmp = atomic_read (&chan->n_frags);
- assert (tmp >= 0);
- assert (tmp <= chan->frag_number);
- if (tmp)
- break;
- if (nonblock || !chan->is_active) {
- ret = -EAGAIN;
- break;
- }
-
- mutex_unlock(&card->syscall_mutex);
-
- DPRINTK ("Sleeping on block %d\n", n);
- schedule();
-
- ret = via_syscall_down (card, nonblock);
- if (ret)
- break;
-
- if (signal_pending (current)) {
- ret = -ERESTARTSYS;
- break;
- }
- }
- set_current_state(TASK_RUNNING);
- remove_wait_queue(&chan->wait, &wait);
- if (ret)
- goto out;
-
- /* Now that we have a buffer we can read from, send
- * as much as sample data possible to userspace.
- */
- while ((count > 0) && (chan->slop_len < chan->frag_size)) {
- size_t slop_left = chan->frag_size - chan->slop_len;
- void *base = chan->pgtbl[n / (PAGE_SIZE / chan->frag_size)].cpuaddr;
- unsigned ofs = (n % (PAGE_SIZE / chan->frag_size)) * chan->frag_size;
-
- size = (count < slop_left) ? count : slop_left;
- if (copy_to_user (userbuf,
- base + ofs + chan->slop_len,
- size)) {
- ret = -EFAULT;
- goto out;
- }
-
- count -= size;
- chan->slop_len += size;
- userbuf += size;
- }
-
- /* If we didn't copy the buffer completely to userspace,
- * stop now.
- */
- if (chan->slop_len < chan->frag_size)
- goto out;
-
- /*
- * If we get to this point, we copied one buffer completely
- * to userspace, give the buffer back to the hardware.
- */
-
- /* advance channel software pointer to point to
- * the next buffer from which we will copy
- */
- if (chan->sw_ptr == (chan->frag_number - 1))
- chan->sw_ptr = 0;
- else
- chan->sw_ptr++;
-
- /* mark one less buffer waiting to be processed */
- assert (atomic_read (&chan->n_frags) > 0);
- atomic_dec (&chan->n_frags);
-
- /* we are at a block boundary, there is no fragment data */
- chan->slop_len = 0;
-
- DPRINTK ("Flushed block %u, sw_ptr now %u, n_frags now %d\n",
- n, chan->sw_ptr, atomic_read (&chan->n_frags));
-
- DPRINTK ("regs==%02X %02X %02X %08X %08X %08X %08X\n",
- inb (card->baseaddr + 0x00),
- inb (card->baseaddr + 0x01),
- inb (card->baseaddr + 0x02),
- inl (card->baseaddr + 0x04),
- inl (card->baseaddr + 0x0C),
- inl (card->baseaddr + 0x80),
- inl (card->baseaddr + 0x84));
-
- if (count > 0)
- goto handle_one_block;
-
-out:
- return (userbuf != orig_userbuf) ? (userbuf - orig_userbuf) : ret;
-}
-
-
-static ssize_t via_dsp_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos)
-{
- struct via_info *card;
- int nonblock = (file->f_flags & O_NONBLOCK);
- int rc;
-
- DPRINTK ("ENTER, file=%p, buffer=%p, count=%u, ppos=%lu\n",
- file, buffer, count, ppos ? ((unsigned long)*ppos) : 0);
-
- assert (file != NULL);
- card = file->private_data;
- assert (card != NULL);
-
- rc = via_syscall_down (card, nonblock);
- if (rc) goto out;
-
- if (card->ch_in.is_mapped) {
- rc = -ENXIO;
- goto out_up;
- }
-
- via_chan_set_buffering(card, &card->ch_in, -1);
- rc = via_chan_buffer_init (card, &card->ch_in);
-
- if (rc)
- goto out_up;
-
- rc = via_dsp_do_read (card, buffer, count, nonblock);
-
-out_up:
- mutex_unlock(&card->syscall_mutex);
-out:
- DPRINTK ("EXIT, returning %ld\n",(long) rc);
- return rc;
-}
-
-
-static ssize_t via_dsp_do_write (struct via_info *card,
- const char __user *userbuf, size_t count,
- int nonblock)
-{
- DECLARE_WAITQUEUE(wait, current);
- const char __user *orig_userbuf = userbuf;
- struct via_channel *chan = &card->ch_out;
- volatile struct via_sgd_table *sgtable = chan->sgtable;
- size_t size;
- int n, tmp;
- ssize_t ret = 0;
-
-handle_one_block:
- /* just to be a nice neighbor */
- /* Thomas Sailer:
- * But also to ourselves, release semaphore if we do so */
- if (need_resched()) {
- mutex_unlock(&card->syscall_mutex);
- schedule ();
- ret = via_syscall_down (card, nonblock);
- if (ret)
- goto out;
- }
-
- /* grab current channel fragment pointer. In the case of
- * playback, this is pointing to the next fragment that
- * should receive data from userland.
- */
- n = chan->sw_ptr;
-
- /* n_frags represents the number of fragments remaining
- * to be filled by userspace. Sleep until
- * at least one fragment is available for our use.
- */
- add_wait_queue(&chan->wait, &wait);
- for (;;) {
- __set_current_state(TASK_INTERRUPTIBLE);
- tmp = atomic_read (&chan->n_frags);
- assert (tmp >= 0);
- assert (tmp <= chan->frag_number);
- if (tmp)
- break;
- if (nonblock || !chan->is_active) {
- ret = -EAGAIN;
- break;
- }
-
- mutex_unlock(&card->syscall_mutex);
-
- DPRINTK ("Sleeping on page %d, tmp==%d, ir==%d\n", n, tmp, chan->is_record);
- schedule();
-
- ret = via_syscall_down (card, nonblock);
- if (ret)
- break;
-
- if (signal_pending (current)) {
- ret = -ERESTARTSYS;
- break;
- }
- }
- set_current_state(TASK_RUNNING);
- remove_wait_queue(&chan->wait, &wait);
- if (ret)
- goto out;
-
- /* Now that we have at least one fragment we can write to, fill the buffer
- * as much as possible with data from userspace.
- */
- while ((count > 0) && (chan->slop_len < chan->frag_size)) {
- size_t slop_left = chan->frag_size - chan->slop_len;
-
- size = (count < slop_left) ? count : slop_left;
- if (copy_from_user (chan->pgtbl[n / (PAGE_SIZE / chan->frag_size)].cpuaddr + (n % (PAGE_SIZE / chan->frag_size)) * chan->frag_size + chan->slop_len,
- userbuf, size)) {
- ret = -EFAULT;
- goto out;
- }
-
- count -= size;
- chan->slop_len += size;
- userbuf += size;
- }
-
- /* If we didn't fill up the buffer with data, stop now.
- * Put a 'stop' marker in the DMA table too, to tell the
- * audio hardware to stop if it gets here.
- */
- if (chan->slop_len < chan->frag_size) {
- sgtable[n].count = cpu_to_le32 (chan->slop_len | VIA_EOL | VIA_STOP);
- goto out;
- }
-
- /*
- * If we get to this point, we have filled a buffer with
- * audio data, flush the buffer to audio hardware.
- */
-
- /* Record the true size for the audio hardware to notice */
- if (n == (chan->frag_number - 1))
- sgtable[n].count = cpu_to_le32 (chan->frag_size | VIA_EOL);
- else
- sgtable[n].count = cpu_to_le32 (chan->frag_size | VIA_FLAG);
-
- /* advance channel software pointer to point to
- * the next buffer we will fill with data
- */
- if (chan->sw_ptr == (chan->frag_number - 1))
- chan->sw_ptr = 0;
- else
- chan->sw_ptr++;
-
- /* mark one less buffer as being available for userspace consumption */
- assert (atomic_read (&chan->n_frags) > 0);
- atomic_dec (&chan->n_frags);
-
- /* we are at a block boundary, there is no fragment data */
- chan->slop_len = 0;
-
- /* if SGD has not yet been started, start it */
- via_chan_maybe_start (chan);
-
- DPRINTK ("Flushed block %u, sw_ptr now %u, n_frags now %d\n",
- n, chan->sw_ptr, atomic_read (&chan->n_frags));
-
- DPRINTK ("regs==S=%02X C=%02X TP=%02X BP=%08X RT=%08X SG=%08X CC=%08X SS=%08X\n",
- inb (card->baseaddr + 0x00),
- inb (card->baseaddr + 0x01),
- inb (card->baseaddr + 0x02),
- inl (card->baseaddr + 0x04),
- inl (card->baseaddr + 0x08),
- inl (card->baseaddr + 0x0C),
- inl (card->baseaddr + 0x80),
- inl (card->baseaddr + 0x84));
-
- if (count > 0)
- goto handle_one_block;
-
-out:
- if (userbuf - orig_userbuf)
- return userbuf - orig_userbuf;
- else
- return ret;
-}
-
-
-static ssize_t via_dsp_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos)
-{
- struct via_info *card;
- ssize_t rc;
- int nonblock = (file->f_flags & O_NONBLOCK);
-
- DPRINTK ("ENTER, file=%p, buffer=%p, count=%u, ppos=%lu\n",
- file, buffer, count, ppos ? ((unsigned long)*ppos) : 0);
-
- assert (file != NULL);
- card = file->private_data;
- assert (card != NULL);
-
- rc = via_syscall_down (card, nonblock);
- if (rc) goto out;
-
- if (card->ch_out.is_mapped) {
- rc = -ENXIO;
- goto out_up;
- }
-
- via_chan_set_buffering(card, &card->ch_out, -1);
- rc = via_chan_buffer_init (card, &card->ch_out);
-
- if (rc)
- goto out_up;
-
- rc = via_dsp_do_write (card, buffer, count, nonblock);
-
-out_up:
- mutex_unlock(&card->syscall_mutex);
-out:
- DPRINTK ("EXIT, returning %ld\n",(long) rc);
- return rc;
-}
-
-
-static unsigned int via_dsp_poll(struct file *file, struct poll_table_struct *wait)
-{
- struct via_info *card;
- struct via_channel *chan;
- unsigned int mask = 0;
-
- DPRINTK ("ENTER\n");
-
- assert (file != NULL);
- card = file->private_data;
- assert (card != NULL);
-
- if (file->f_mode & FMODE_READ) {
- chan = &card->ch_in;
- if (sg_active (chan->iobase))
- poll_wait(file, &chan->wait, wait);
- if (atomic_read (&chan->n_frags) > 0)
- mask |= POLLIN | POLLRDNORM;
- }
-
- if (file->f_mode & FMODE_WRITE) {
- chan = &card->ch_out;
- if (sg_active (chan->iobase))
- poll_wait(file, &chan->wait, wait);
- if (atomic_read (&chan->n_frags) > 0)
- mask |= POLLOUT | POLLWRNORM;
- }
-
- DPRINTK ("EXIT, returning %u\n", mask);
- return mask;
-}
-
-
-/**
- * via_dsp_drain_playback - sleep until all playback samples are flushed
- * @card: Private info for specified board
- * @chan: Channel to drain
- * @nonblock: boolean, non-zero if O_NONBLOCK is set
- *
- * Sleeps until all playback has been flushed to the audio
- * hardware.
- *
- * Locking: inside card->syscall_mutex
- */
-
-static int via_dsp_drain_playback (struct via_info *card,
- struct via_channel *chan, int nonblock)
-{
- DECLARE_WAITQUEUE(wait, current);
- int ret = 0;
-
- DPRINTK ("ENTER, nonblock = %d\n", nonblock);
-
- if (chan->slop_len > 0)
- via_chan_flush_frag (chan);
-
- if (atomic_read (&chan->n_frags) == chan->frag_number)
- goto out;
-
- via_chan_maybe_start (chan);
-
- add_wait_queue(&chan->wait, &wait);
- for (;;) {
- DPRINTK ("FRAGS %d FRAGNUM %d\n", atomic_read(&chan->n_frags), chan->frag_number);
- __set_current_state(TASK_INTERRUPTIBLE);
- if (atomic_read (&chan->n_frags) >= chan->frag_number)
- break;
-
- if (nonblock) {
- DPRINTK ("EXIT, returning -EAGAIN\n");
- ret = -EAGAIN;
- break;
- }
-
-#ifdef VIA_DEBUG
- {
- u8 r40,r41,r42,r43,r44,r48;
- pci_read_config_byte (card->pdev, 0x40, &r40);
- pci_read_config_byte (card->pdev, 0x41, &r41);
- pci_read_config_byte (card->pdev, 0x42, &r42);
- pci_read_config_byte (card->pdev, 0x43, &r43);
- pci_read_config_byte (card->pdev, 0x44, &r44);
- pci_read_config_byte (card->pdev, 0x48, &r48);
- DPRINTK ("PCI config: %02X %02X %02X %02X %02X %02X\n",
- r40,r41,r42,r43,r44,r48);
-
- DPRINTK ("regs==%02X %02X %02X %08X %08X %08X %08X\n",
- inb (card->baseaddr + 0x00),
- inb (card->baseaddr + 0x01),
- inb (card->baseaddr + 0x02),
- inl (card->baseaddr + 0x04),
- inl (card->baseaddr + 0x0C),
- inl (card->baseaddr + 0x80),
- inl (card->baseaddr + 0x84));
- }
-
- if (!chan->is_active)
- printk (KERN_ERR "sleeping but not active\n");
-#endif
-
- mutex_unlock(&card->syscall_mutex);
-
- DPRINTK ("sleeping, nbufs=%d\n", atomic_read (&chan->n_frags));
- schedule();
-
- if ((ret = via_syscall_down (card, nonblock)))
- break;
-
- if (signal_pending (current)) {
- DPRINTK ("EXIT, returning -ERESTARTSYS\n");
- ret = -ERESTARTSYS;
- break;
- }
- }
- set_current_state(TASK_RUNNING);
- remove_wait_queue(&chan->wait, &wait);
-
-#ifdef VIA_DEBUG
- {
- u8 r40,r41,r42,r43,r44,r48;
- pci_read_config_byte (card->pdev, 0x40, &r40);
- pci_read_config_byte (card->pdev, 0x41, &r41);
- pci_read_config_byte (card->pdev, 0x42, &r42);
- pci_read_config_byte (card->pdev, 0x43, &r43);
- pci_read_config_byte (card->pdev, 0x44, &r44);
- pci_read_config_byte (card->pdev, 0x48, &r48);
- DPRINTK ("PCI config: %02X %02X %02X %02X %02X %02X\n",
- r40,r41,r42,r43,r44,r48);
-
- DPRINTK ("regs==%02X %02X %02X %08X %08X %08X %08X\n",
- inb (card->baseaddr + 0x00),
- inb (card->baseaddr + 0x01),
- inb (card->baseaddr + 0x02),
- inl (card->baseaddr + 0x04),
- inl (card->baseaddr + 0x0C),
- inl (card->baseaddr + 0x80),
- inl (card->baseaddr + 0x84));
-
- DPRINTK ("final nbufs=%d\n", atomic_read (&chan->n_frags));
- }
-#endif
-
-out:
- DPRINTK ("EXIT, returning %d\n", ret);
- return ret;
-}
-
-
-/**
- * via_dsp_ioctl_space - get information about channel buffering
- * @card: Private info for specified board
- * @chan: pointer to channel-specific info
- * @arg: user buffer for returned information
- *
- * Handles SNDCTL_DSP_GETISPACE and SNDCTL_DSP_GETOSPACE.
- *
- * Locking: inside card->syscall_mutex
- */
-
-static int via_dsp_ioctl_space (struct via_info *card,
- struct via_channel *chan,
- void __user *arg)
-{
- audio_buf_info info;
-
- via_chan_set_buffering(card, chan, -1);
-
- info.fragstotal = chan->frag_number;
- info.fragsize = chan->frag_size;
-
- /* number of full fragments we can read/write without blocking */
- info.fragments = atomic_read (&chan->n_frags);
-
- if ((chan->slop_len % chan->frag_size > 0) && (info.fragments > 0))
- info.fragments--;
-
- /* number of bytes that can be read or written immediately
- * without blocking.
- */
- info.bytes = (info.fragments * chan->frag_size);
- if (chan->slop_len % chan->frag_size > 0)
- info.bytes += chan->frag_size - (chan->slop_len % chan->frag_size);
-
- DPRINTK ("EXIT, returning fragstotal=%d, fragsize=%d, fragments=%d, bytes=%d\n",
- info.fragstotal,
- info.fragsize,
- info.fragments,
- info.bytes);
-
- return copy_to_user (arg, &info, sizeof (info))?-EFAULT:0;
-}
-
-
-/**
- * via_dsp_ioctl_ptr - get information about hardware buffer ptr
- * @card: Private info for specified board
- * @chan: pointer to channel-specific info
- * @arg: user buffer for returned information
- *
- * Handles SNDCTL_DSP_GETIPTR and SNDCTL_DSP_GETOPTR.
- *
- * Locking: inside card->syscall_mutex
- */
-
-static int via_dsp_ioctl_ptr (struct via_info *card,
- struct via_channel *chan,
- void __user *arg)
-{
- count_info info;
-
- spin_lock_irq (&card->lock);
-
- info.bytes = chan->bytes;
- info.blocks = chan->n_irqs;
- chan->n_irqs = 0;
-
- spin_unlock_irq (&card->lock);
-
- if (chan->is_active) {
- unsigned long extra;
- info.ptr = atomic_read (&chan->hw_ptr) * chan->frag_size;
- extra = chan->frag_size - via_sg_offset(chan);
- info.ptr += extra;
- info.bytes += extra;
- } else {
- info.ptr = 0;
- }
-
- DPRINTK ("EXIT, returning bytes=%d, blocks=%d, ptr=%d\n",
- info.bytes,
- info.blocks,
- info.ptr);
-
- return copy_to_user (arg, &info, sizeof (info))?-EFAULT:0;
-}
-
-
-static int via_dsp_ioctl_trigger (struct via_channel *chan, int val)
-{
- int enable, do_something;
-
- if (chan->is_record)
- enable = (val & PCM_ENABLE_INPUT);
- else
- enable = (val & PCM_ENABLE_OUTPUT);
-
- if (!chan->is_enabled && enable) {
- do_something = 1;
- } else if (chan->is_enabled && !enable) {
- do_something = -1;
- } else {
- do_something = 0;
- }
-
- DPRINTK ("enable=%d, do_something=%d\n",
- enable, do_something);
-
- if (chan->is_active && do_something)
- return -EINVAL;
-
- if (do_something == 1) {
- chan->is_enabled = 1;
- via_chan_maybe_start (chan);
- DPRINTK ("Triggering input\n");
- }
-
- else if (do_something == -1) {
- chan->is_enabled = 0;
- DPRINTK ("Setup input trigger\n");
- }
-
- return 0;
-}
-
-
-static int via_dsp_ioctl (struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg)
-{
- int rc, rd=0, wr=0, val=0;
- struct via_info *card;
- struct via_channel *chan;
- int nonblock = (file->f_flags & O_NONBLOCK);
- int __user *ip = (int __user *)arg;
- void __user *p = (void __user *)arg;
-
- assert (file != NULL);
- card = file->private_data;
- assert (card != NULL);
-
- if (file->f_mode & FMODE_WRITE)
- wr = 1;
- if (file->f_mode & FMODE_READ)
- rd = 1;
-
- rc = via_syscall_down (card, nonblock);
- if (rc)
- return rc;
- rc = -EINVAL;
-
- switch (cmd) {
-
- /* OSS API version. XXX unverified */
- case OSS_GETVERSION:
- DPRINTK ("ioctl OSS_GETVERSION, EXIT, returning SOUND_VERSION\n");
- rc = put_user (SOUND_VERSION, ip);
- break;
-
- /* list of supported PCM data formats */
- case SNDCTL_DSP_GETFMTS:
- DPRINTK ("DSP_GETFMTS, EXIT, returning AFMT U8|S16_LE\n");
- rc = put_user (AFMT_U8 | AFMT_S16_LE, ip);
- break;
-
- /* query or set current channel's PCM data format */
- case SNDCTL_DSP_SETFMT:
- if (get_user(val, ip)) {
- rc = -EFAULT;
- break;
- }
- DPRINTK ("DSP_SETFMT, val==%d\n", val);
- if (val != AFMT_QUERY) {
- rc = 0;
-
- if (rd)
- rc = via_chan_set_fmt (card, &card->ch_in, val);
-
- if (rc >= 0 && wr)
- rc = via_chan_set_fmt (card, &card->ch_out, val);
-
- if (rc < 0)
- break;
-
- val = rc;
- } else {
- if ((rd && (card->ch_in.pcm_fmt & VIA_PCM_FMT_16BIT)) ||
- (wr && (card->ch_out.pcm_fmt & VIA_PCM_FMT_16BIT)))
- val = AFMT_S16_LE;
- else
- val = AFMT_U8;
- }
- DPRINTK ("SETFMT EXIT, returning %d\n", val);
- rc = put_user (val, ip);
- break;
-
- /* query or set number of channels (1=mono, 2=stereo, 4/6 for multichannel) */
- case SNDCTL_DSP_CHANNELS:
- if (get_user(val, ip)) {
- rc = -EFAULT;
- break;
- }
- DPRINTK ("DSP_CHANNELS, val==%d\n", val);
- if (val != 0) {
- rc = 0;
-
- if (rd)
- rc = via_chan_set_stereo (card, &card->ch_in, val);
-
- if (rc >= 0 && wr)
- rc = via_chan_set_stereo (card, &card->ch_out, val);
-
- if (rc < 0)
- break;
-
- val = rc;
- } else {
- if (rd)
- val = card->ch_in.channels;
- else
- val = card->ch_out.channels;
- }
- DPRINTK ("CHANNELS EXIT, returning %d\n", val);
- rc = put_user (val, ip);
- break;
-
- /* enable (val is not zero) or disable (val == 0) stereo */
- case SNDCTL_DSP_STEREO:
- if (get_user(val, ip)) {
- rc = -EFAULT;
- break;
- }
- DPRINTK ("DSP_STEREO, val==%d\n", val);
- rc = 0;
-
- if (rd)
- rc = via_chan_set_stereo (card, &card->ch_in, val ? 2 : 1);
- if (rc >= 0 && wr)
- rc = via_chan_set_stereo (card, &card->ch_out, val ? 2 : 1);
-
- if (rc < 0)
- break;
-
- val = rc - 1;
-
- DPRINTK ("STEREO EXIT, returning %d\n", val);
- rc = put_user(val, ip);
- break;
-
- /* query or set sampling rate */
- case SNDCTL_DSP_SPEED:
- if (get_user(val, ip)) {
- rc = -EFAULT;
- break;
- }
- DPRINTK ("DSP_SPEED, val==%d\n", val);
- if (val < 0) {
- rc = -EINVAL;
- break;
- }
- if (val > 0) {
- rc = 0;
-
- if (rd)
- rc = via_chan_set_speed (card, &card->ch_in, val);
- if (rc >= 0 && wr)
- rc = via_chan_set_speed (card, &card->ch_out, val);
-
- if (rc < 0)
- break;
-
- val = rc;
- } else {
- if (rd)
- val = card->ch_in.rate;
- else if (wr)
- val = card->ch_out.rate;
- else
- val = 0;
- }
- DPRINTK ("SPEED EXIT, returning %d\n", val);
- rc = put_user (val, ip);
- break;
-
- /* wait until all buffers have been played, and then stop device */
- case SNDCTL_DSP_SYNC:
- DPRINTK ("DSP_SYNC\n");
- rc = 0;
- if (wr) {
- DPRINTK ("SYNC EXIT (after calling via_dsp_drain_playback)\n");
- rc = via_dsp_drain_playback (card, &card->ch_out, nonblock);
- }
- break;
-
- /* stop recording/playback immediately */
- case SNDCTL_DSP_RESET:
- DPRINTK ("DSP_RESET\n");
- if (rd) {
- via_chan_clear (card, &card->ch_in);
- card->ch_in.frag_number = 0;
- card->ch_in.frag_size = 0;
- atomic_set(&card->ch_in.n_frags, 0);
- }
-
- if (wr) {
- via_chan_clear (card, &card->ch_out);
- card->ch_out.frag_number = 0;
- card->ch_out.frag_size = 0;
- atomic_set(&card->ch_out.n_frags, 0);
- }
-
- rc = 0;
- break;
-
- case SNDCTL_DSP_NONBLOCK:
- file->f_flags |= O_NONBLOCK;
- rc = 0;
- break;
-
- /* obtain bitmask of device capabilities, such as mmap, full duplex, etc. */
- case SNDCTL_DSP_GETCAPS:
- DPRINTK ("DSP_GETCAPS\n");
- rc = put_user(VIA_DSP_CAP, ip);
- break;
-
- /* obtain buffer fragment size */
- case SNDCTL_DSP_GETBLKSIZE:
- DPRINTK ("DSP_GETBLKSIZE\n");
-
- if (rd) {
- via_chan_set_buffering(card, &card->ch_in, -1);
- rc = put_user(card->ch_in.frag_size, ip);
- } else if (wr) {
- via_chan_set_buffering(card, &card->ch_out, -1);
- rc = put_user(card->ch_out.frag_size, ip);
- }
- break;
-
- /* obtain information about input buffering */
- case SNDCTL_DSP_GETISPACE:
- DPRINTK ("DSP_GETISPACE\n");
- if (rd)
- rc = via_dsp_ioctl_space (card, &card->ch_in, p);
- break;
-
- /* obtain information about output buffering */
- case SNDCTL_DSP_GETOSPACE:
- DPRINTK ("DSP_GETOSPACE\n");
- if (wr)
- rc = via_dsp_ioctl_space (card, &card->ch_out, p);
- break;
-
- /* obtain information about input hardware pointer */
- case SNDCTL_DSP_GETIPTR:
- DPRINTK ("DSP_GETIPTR\n");
- if (rd)
- rc = via_dsp_ioctl_ptr (card, &card->ch_in, p);
- break;
-
- /* obtain information about output hardware pointer */
- case SNDCTL_DSP_GETOPTR:
- DPRINTK ("DSP_GETOPTR\n");
- if (wr)
- rc = via_dsp_ioctl_ptr (card, &card->ch_out, p);
- break;
-
- /* return number of bytes remaining to be played by DMA engine */
- case SNDCTL_DSP_GETODELAY:
- {
- DPRINTK ("DSP_GETODELAY\n");
-
- chan = &card->ch_out;
-
- if (!wr)
- break;
-
- if (chan->is_active) {
-
- val = chan->frag_number - atomic_read (&chan->n_frags);
-
- assert(val >= 0);
-
- if (val > 0) {
- val *= chan->frag_size;
- val -= chan->frag_size - via_sg_offset(chan);
- }
- val += chan->slop_len % chan->frag_size;
- } else
- val = 0;
-
- assert (val <= (chan->frag_size * chan->frag_number));
-
- DPRINTK ("GETODELAY EXIT, val = %d bytes\n", val);
- rc = put_user (val, ip);
- break;
- }
-
- /* handle the quick-start of a channel,
- * or the notification that a quick-start will
- * occur in the future
- */
- case SNDCTL_DSP_SETTRIGGER:
- if (get_user(val, ip)) {
- rc = -EFAULT;
- break;
- }
- DPRINTK ("DSP_SETTRIGGER, rd=%d, wr=%d, act=%d/%d, en=%d/%d\n",
- rd, wr, card->ch_in.is_active, card->ch_out.is_active,
- card->ch_in.is_enabled, card->ch_out.is_enabled);
-
- rc = 0;
-
- if (rd)
- rc = via_dsp_ioctl_trigger (&card->ch_in, val);
-
- if (!rc && wr)
- rc = via_dsp_ioctl_trigger (&card->ch_out, val);
-
- break;
-
- case SNDCTL_DSP_GETTRIGGER:
- val = 0;
- if ((file->f_mode & FMODE_READ) && card->ch_in.is_enabled)
- val |= PCM_ENABLE_INPUT;
- if ((file->f_mode & FMODE_WRITE) && card->ch_out.is_enabled)
- val |= PCM_ENABLE_OUTPUT;
- rc = put_user(val, ip);
- break;
-
- /* Enable full duplex. Since we do this as soon as we are opened
- * with O_RDWR, this is mainly a no-op that always returns success.
- */
- case SNDCTL_DSP_SETDUPLEX:
- DPRINTK ("DSP_SETDUPLEX\n");
- if (!rd || !wr)
- break;
- rc = 0;
- break;
-
- /* set fragment size. implemented as a successful no-op for now */
- case SNDCTL_DSP_SETFRAGMENT:
- if (get_user(val, ip)) {
- rc = -EFAULT;
- break;
- }
- DPRINTK ("DSP_SETFRAGMENT, val==%d\n", val);
-
- if (rd)
- rc = via_chan_set_buffering(card, &card->ch_in, val);
-
- if (wr)
- rc = via_chan_set_buffering(card, &card->ch_out, val);
-
- DPRINTK ("SNDCTL_DSP_SETFRAGMENT (fragshift==0x%04X (%d), maxfrags==0x%04X (%d))\n",
- val & 0xFFFF,
- val & 0xFFFF,
- (val >> 16) & 0xFFFF,
- (val >> 16) & 0xFFFF);
-
- rc = 0;
- break;
-
- /* inform device of an upcoming pause in input (or output). */
- case SNDCTL_DSP_POST:
- DPRINTK ("DSP_POST\n");
- if (wr) {
- if (card->ch_out.slop_len > 0)
- via_chan_flush_frag (&card->ch_out);
- via_chan_maybe_start (&card->ch_out);
- }
-
- rc = 0;
- break;
-
- /* not implemented */
- default:
- DPRINTK ("unhandled ioctl, cmd==%u, arg==%p\n",
- cmd, p);
- break;
- }
-
- mutex_unlock(&card->syscall_mutex);
- DPRINTK ("EXIT, returning %d\n", rc);
- return rc;
-}
-
-
-static int via_dsp_open (struct inode *inode, struct file *file)
-{
- int minor = iminor(inode);
- struct via_info *card;
- struct pci_dev *pdev = NULL;
- struct via_channel *chan;
- struct pci_driver *drvr;
- int nonblock = (file->f_flags & O_NONBLOCK);
-
- DPRINTK ("ENTER, minor=%d, file->f_mode=0x%x\n", minor, file->f_mode);
-
- if (!(file->f_mode & (FMODE_READ | FMODE_WRITE))) {
- DPRINTK ("EXIT, returning -EINVAL\n");
- return -EINVAL;
- }
-
- card = NULL;
- while ((pdev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, pdev)) != NULL) {
- drvr = pci_dev_driver (pdev);
- if (drvr == &via_driver) {
- assert (pci_get_drvdata (pdev) != NULL);
-
- card = pci_get_drvdata (pdev);
- DPRINTK ("dev_dsp = %d, minor = %d, assn = %d\n",
- card->dev_dsp, minor,
- (card->dev_dsp ^ minor) & ~0xf);
-
- if (((card->dev_dsp ^ minor) & ~0xf) == 0)
- goto match;
- }
- }
-
- DPRINTK ("no matching %s found\n", card ? "minor" : "driver");
- return -ENODEV;
-
-match:
- pci_dev_put(pdev);
- if (nonblock) {
- if (!mutex_trylock(&card->open_mutex)) {
- DPRINTK ("EXIT, returning -EAGAIN\n");
- return -EAGAIN;
- }
- } else {
- if (mutex_lock_interruptible(&card->open_mutex)) {
- DPRINTK ("EXIT, returning -ERESTARTSYS\n");
- return -ERESTARTSYS;
- }
- }
-
- file->private_data = card;
- DPRINTK ("file->f_mode == 0x%x\n", file->f_mode);
-
- /* handle input from analog source */
- if (file->f_mode & FMODE_READ) {
- chan = &card->ch_in;
-
- via_chan_init (card, chan);
-
- /* why is this forced to 16-bit stereo in all drivers? */
- chan->pcm_fmt = VIA_PCM_FMT_16BIT | VIA_PCM_FMT_STEREO;
- chan->channels = 2;
-
- // TO DO - use FIFO: via_capture_fifo(card, 1);
- via_chan_pcm_fmt (chan, 0);
- via_set_rate (card->ac97, chan, 44100);
- }
-
- /* handle output to analog source */
- if (file->f_mode & FMODE_WRITE) {
- chan = &card->ch_out;
-
- via_chan_init (card, chan);
-
- if (file->f_mode & FMODE_READ) {
- /* if in duplex mode make the recording and playback channels
- have the same settings */
- chan->pcm_fmt = VIA_PCM_FMT_16BIT | VIA_PCM_FMT_STEREO;
- chan->channels = 2;
- via_chan_pcm_fmt (chan, 0);
- via_set_rate (card->ac97, chan, 44100);
- } else {
- if ((minor & 0xf) == SND_DEV_DSP16) {
- chan->pcm_fmt = VIA_PCM_FMT_16BIT;
- via_chan_pcm_fmt (chan, 0);
- via_set_rate (card->ac97, chan, 44100);
- } else {
- via_chan_pcm_fmt (chan, 1);
- via_set_rate (card->ac97, chan, 8000);
- }
- }
- }
-
- DPRINTK ("EXIT, returning 0\n");
- return nonseekable_open(inode, file);
-}
-
-
-static int via_dsp_release(struct inode *inode, struct file *file)
-{
- struct via_info *card;
- int nonblock = (file->f_flags & O_NONBLOCK);
- int rc;
-
- DPRINTK ("ENTER\n");
-
- assert (file != NULL);
- card = file->private_data;
- assert (card != NULL);
-
- rc = via_syscall_down (card, nonblock);
- if (rc) {
- DPRINTK ("EXIT (syscall_down error), rc=%d\n", rc);
- return rc;
- }
-
- if (file->f_mode & FMODE_WRITE) {
- rc = via_dsp_drain_playback (card, &card->ch_out, nonblock);
- if (rc && rc != -ERESTARTSYS) /* Nobody needs to know about ^C */
- printk (KERN_DEBUG "via_audio: ignoring drain playback error %d\n", rc);
-
- via_chan_free (card, &card->ch_out);
- via_chan_buffer_free(card, &card->ch_out);
- }
-
- if (file->f_mode & FMODE_READ) {
- via_chan_free (card, &card->ch_in);
- via_chan_buffer_free (card, &card->ch_in);
- }
-
- mutex_unlock(&card->syscall_mutex);
- mutex_unlock(&card->open_mutex);
-
- DPRINTK ("EXIT, returning 0\n");
- return 0;
-}
-
-
-/****************************************************************
- *
- * Chip setup and kernel registration
- *
- *
- */
-
-static int __devinit via_init_one (struct pci_dev *pdev, const struct pci_device_id *id)
-{
-#ifdef CONFIG_MIDI_VIA82CXXX
- u8 r42;
-#endif
- int rc;
- struct via_info *card;
- static int printed_version;
-
- DPRINTK ("ENTER\n");
-
- if (printed_version++ == 0)
- printk (KERN_INFO "Via 686a/8233/8235 audio driver " VIA_VERSION "\n");
-
- rc = pci_enable_device (pdev);
- if (rc)
- goto err_out;
-
- rc = pci_request_regions (pdev, "via82cxxx_audio");
- if (rc)
- goto err_out_disable;
-
- rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
- if (rc)
- goto err_out_res;
- rc = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
- if (rc)
- goto err_out_res;
-
- card = kmalloc (sizeof (*card), GFP_KERNEL);
- if (!card) {
- printk (KERN_ERR PFX "out of memory, aborting\n");
- rc = -ENOMEM;
- goto err_out_res;
- }
-
- pci_set_drvdata (pdev, card);
-
- memset (card, 0, sizeof (*card));
- card->pdev = pdev;
- card->baseaddr = pci_resource_start (pdev, 0);
- card->card_num = via_num_cards++;
- spin_lock_init (&card->lock);
- spin_lock_init (&card->ac97_lock);
- mutex_init(&card->syscall_mutex);
- mutex_init(&card->open_mutex);
-
- /* we must init these now, in case the intr handler needs them */
- via_chan_init_defaults (card, &card->ch_out);
- via_chan_init_defaults (card, &card->ch_in);
- via_chan_init_defaults (card, &card->ch_fm);
-
- /* if BAR 2 is present, chip is Rev H or later,
- * which means it has a few extra features */
- if (pci_resource_start (pdev, 2) > 0)
- card->rev_h = 1;
-
- /* Overkill for now, but more flexible done right */
-
- card->intmask = id->driver_data;
- card->legacy = !card->intmask;
- card->sixchannel = id->driver_data;
-
- if(card->sixchannel)
- printk(KERN_INFO PFX "Six channel audio available\n");
- if (pdev->irq < 1) {
- printk (KERN_ERR PFX "invalid PCI IRQ %d, aborting\n", pdev->irq);
- rc = -ENODEV;
- goto err_out_kfree;
- }
-
- if (!(pci_resource_flags (pdev, 0) & IORESOURCE_IO)) {
- printk (KERN_ERR PFX "unable to locate I/O resources, aborting\n");
- rc = -ENODEV;
- goto err_out_kfree;
- }
-
- pci_set_master(pdev);
-
- /*
- * init AC97 mixer and codec
- */
- rc = via_ac97_init (card);
- if (rc) {
- printk (KERN_ERR PFX "AC97 init failed, aborting\n");
- goto err_out_kfree;
- }
-
- /*
- * init DSP device
- */
- rc = via_dsp_init (card);
- if (rc) {
- printk (KERN_ERR PFX "DSP device init failed, aborting\n");
- goto err_out_have_mixer;
- }
-
- /*
- * init and turn on interrupts, as the last thing we do
- */
- rc = via_interrupt_init (card);
- if (rc) {
- printk (KERN_ERR PFX "interrupt init failed, aborting\n");
- goto err_out_have_dsp;
- }
-
- printk (KERN_INFO PFX "board #%d at 0x%04lX, IRQ %d\n",
- card->card_num + 1, card->baseaddr, pdev->irq);
-
-#ifdef CONFIG_MIDI_VIA82CXXX
- /* Disable by default */
- card->midi_info.io_base = 0;
-
- if(card->legacy)
- {
- pci_read_config_byte (pdev, 0x42, &r42);
- /* Disable MIDI interrupt */
- pci_write_config_byte (pdev, 0x42, r42 | VIA_CR42_MIDI_IRQMASK);
- if (r42 & VIA_CR42_MIDI_ENABLE)
- {
- if (r42 & VIA_CR42_MIDI_PNP) /* Address selected by iobase 2 - not tested */
- card->midi_info.io_base = pci_resource_start (pdev, 2);
- else /* Address selected by byte 0x43 */
- {
- u8 r43;
- pci_read_config_byte (pdev, 0x43, &r43);
- card->midi_info.io_base = 0x300 + ((r43 & 0x0c) << 2);
- }
-
- card->midi_info.irq = -pdev->irq;
- if (probe_uart401(& card->midi_info, THIS_MODULE))
- {
- card->midi_devc=midi_devs[card->midi_info.slots[4]]->devc;
- pci_write_config_byte(pdev, 0x42, r42 & ~VIA_CR42_MIDI_IRQMASK);
- printk("Enabled Via MIDI\n");
- }
- }
- }
-#endif
-
- DPRINTK ("EXIT, returning 0\n");
- return 0;
-
-err_out_have_dsp:
- via_dsp_cleanup (card);
-
-err_out_have_mixer:
- via_ac97_cleanup (card);
-
-err_out_kfree:
-#ifndef VIA_NDEBUG
- memset (card, OSS_POISON_FREE, sizeof (*card)); /* poison memory */
-#endif
- kfree (card);
-
-err_out_res:
- pci_release_regions (pdev);
-
-err_out_disable:
- pci_disable_device (pdev);
-
-err_out:
- pci_set_drvdata (pdev, NULL);
- DPRINTK ("EXIT - returning %d\n", rc);
- return rc;
-}
-
-
-static void __devexit via_remove_one (struct pci_dev *pdev)
-{
- struct via_info *card;
-
- DPRINTK ("ENTER\n");
-
- assert (pdev != NULL);
- card = pci_get_drvdata (pdev);
- assert (card != NULL);
-
-#ifdef CONFIG_MIDI_VIA82CXXX
- if (card->midi_info.io_base)
- unload_uart401(&card->midi_info);
-#endif
-
- free_irq (card->pdev->irq, card);
- via_dsp_cleanup (card);
- via_ac97_cleanup (card);
-
-#ifndef VIA_NDEBUG
- memset (card, OSS_POISON_FREE, sizeof (*card)); /* poison memory */
-#endif
- kfree (card);
-
- pci_set_drvdata (pdev, NULL);
-
- pci_release_regions (pdev);
- pci_disable_device (pdev);
- pci_set_power_state (pdev, 3); /* ...zzzzzz */
-
- DPRINTK ("EXIT\n");
- return;
-}
-
-
-/****************************************************************
- *
- * Driver initialization and cleanup
- *
- *
- */
-
-static int __init init_via82cxxx_audio(void)
-{
- int rc;
-
- DPRINTK ("ENTER\n");
-
- rc = pci_register_driver (&via_driver);
- if (rc) {
- DPRINTK ("EXIT, returning %d\n", rc);
- return rc;
- }
-
- DPRINTK ("EXIT, returning 0\n");
- return 0;
-}
-
-
-static void __exit cleanup_via82cxxx_audio(void)
-{
- DPRINTK ("ENTER\n");
-
- pci_unregister_driver (&via_driver);
-
- DPRINTK ("EXIT\n");
-}
-
-
-module_init(init_via82cxxx_audio);
-module_exit(cleanup_via82cxxx_audio);
-
-MODULE_AUTHOR("Jeff Garzik");
-MODULE_DESCRIPTION("DSP audio and mixer driver for Via 82Cxxx audio devices");
-MODULE_LICENSE("GPL");
-
projects / openwrt / staging / blogic.git / commitdiff