#include <linux/init.h>
#include <linux/ioport.h>
#include <linux/delay.h>
-#include <asm/io.h>
-#include <asm/uaccess.h>
+#include <linux/version.h> /* for KERNEL_VERSION MACRO */
#include <linux/pci.h>
#include <linux/videodev2.h>
-#include <media/v4l2-common.h>
+#include <linux/io.h>
+#include <linux/uaccess.h>
+#include <media/v4l2-device.h>
#include <media/v4l2-ioctl.h>
-#include <linux/version.h> /* for KERNEL_VERSION MACRO */
-#define RADIO_VERSION KERNEL_VERSION(0,0,6)
-#define DRIVER_VERSION "0.06"
+MODULE_AUTHOR("Adam Tlalka, atlka@pg.gda.pl");
+MODULE_DESCRIPTION("Radio driver for the Maestro PCI sound card radio.");
+MODULE_LICENSE("GPL");
-static struct v4l2_queryctrl radio_qctrl[] = {
- {
- .id = V4L2_CID_AUDIO_MUTE,
- .name = "Mute",
- .minimum = 0,
- .maximum = 1,
- .default_value = 1,
- .type = V4L2_CTRL_TYPE_BOOLEAN,
- }
-};
+static int radio_nr = -1;
+module_param(radio_nr, int, 0);
+
+#define RADIO_VERSION KERNEL_VERSION(0, 0, 6)
+#define DRIVER_VERSION "0.06"
#define GPIO_DATA 0x60 /* port offset from ESS_IO_BASE */
#define BITS2FREQ(x) ((x) * FREQ_STEP - FREQ_IF)
-static int radio_nr = -1;
-module_param(radio_nr, int, 0);
+struct maestro {
+ struct v4l2_device v4l2_dev;
+ struct video_device vdev;
+ struct pci_dev *pdev;
+ struct mutex lock;
-static unsigned long in_use;
-
-static int maestro_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
+ u16 io; /* base of Maestro card radio io (GPIO_DATA)*/
+ u16 muted; /* VIDEO_AUDIO_MUTE */
+ u16 stereo; /* VIDEO_TUNER_STEREO_ON */
+ u16 tuned; /* signal strength (0 or 0xffff) */
+};
-static int maestro_exclusive_open(struct file *file)
+static inline struct maestro *to_maestro(struct v4l2_device *v4l2_dev)
{
- return test_and_set_bit(0, &in_use) ? -EBUSY : 0;
+ return container_of(v4l2_dev, struct maestro, v4l2_dev);
}
-static int maestro_exclusive_release(struct file *file)
+static u32 radio_bits_get(struct maestro *dev)
{
- clear_bit(0, &in_use);
- return 0;
-}
-
-static void maestro_remove(struct pci_dev *pdev);
-
-static struct pci_device_id maestro_r_pci_tbl[] = {
- { PCI_DEVICE(PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_ESS1968),
- .class = PCI_CLASS_MULTIMEDIA_AUDIO << 8,
- .class_mask = 0xffff00 },
- { PCI_DEVICE(PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_ESS1978),
- .class = PCI_CLASS_MULTIMEDIA_AUDIO << 8,
- .class_mask = 0xffff00 },
- { 0 }
-};
-MODULE_DEVICE_TABLE(pci, maestro_r_pci_tbl);
-
-static struct pci_driver maestro_r_driver = {
- .name = "maestro_radio",
- .id_table = maestro_r_pci_tbl,
- .probe = maestro_probe,
- .remove = __devexit_p(maestro_remove),
-};
-
-static const struct v4l2_file_operations maestro_fops = {
- .owner = THIS_MODULE,
- .open = maestro_exclusive_open,
- .release = maestro_exclusive_release,
- .ioctl = video_ioctl2,
-};
-
-struct radio_device {
- u16 io, /* base of Maestro card radio io (GPIO_DATA)*/
- muted, /* VIDEO_AUDIO_MUTE */
- stereo, /* VIDEO_TUNER_STEREO_ON */
- tuned; /* signal strength (0 or 0xffff) */
-};
-
-static u32 radio_bits_get(struct radio_device *dev)
-{
- register u16 io=dev->io, l, rdata;
- register u32 data=0;
+ u16 io = dev->io, l, rdata;
+ u32 data = 0;
u16 omask;
omask = inw(io + IO_MASK);
outw(0, io);
udelay(16);
- for (l=24;l--;) {
+ for (l = 24; l--;) {
outw(STR_CLK, io); /* HI state */
udelay(2);
- if(!l)
+ if (!l)
dev->tuned = inw(io) & STR_MOST ? 0 : 0xffff;
outw(0, io); /* LO state */
udelay(2);
data <<= 1; /* shift data */
rdata = inw(io);
- if(!l)
- dev->stereo = rdata & STR_MOST ?
- 0 : 1;
- else
- if(rdata & STR_DATA)
- data++;
+ if (!l)
+ dev->stereo = (rdata & STR_MOST) ? 0 : 1;
+ else if (rdata & STR_DATA)
+ data++;
udelay(2);
}
- if(dev->muted)
+ if (dev->muted)
outw(STR_WREN, io);
udelay(4);
return data & 0x3ffe;
}
-static void radio_bits_set(struct radio_device *dev, u32 data)
+static void radio_bits_set(struct maestro *dev, u32 data)
{
- register u16 io=dev->io, l, bits;
+ u16 io = dev->io, l, bits;
u16 omask, odir;
omask = inw(io + IO_MASK);
- odir = (inw(io + IO_DIR) & ~STR_DATA) | (STR_CLK | STR_WREN);
+ odir = (inw(io + IO_DIR) & ~STR_DATA) | (STR_CLK | STR_WREN);
outw(odir | STR_DATA, io + IO_DIR);
outw(~(STR_DATA | STR_CLK | STR_WREN), io + IO_MASK);
udelay(16);
- for (l=25;l;l--) {
- bits = ((data >> 18) & STR_DATA) | STR_WREN ;
+ for (l = 25; l; l--) {
+ bits = ((data >> 18) & STR_DATA) | STR_WREN;
data <<= 1; /* shift data */
outw(bits, io); /* start strobe */
udelay(2);
udelay(4);
}
- if(!dev->muted)
+ if (!dev->muted)
outw(0, io);
udelay(4);
static int vidioc_querycap(struct file *file, void *priv,
struct v4l2_capability *v)
{
+ struct maestro *dev = video_drvdata(file);
+
strlcpy(v->driver, "radio-maestro", sizeof(v->driver));
strlcpy(v->card, "Maestro Radio", sizeof(v->card));
- sprintf(v->bus_info, "PCI");
+ snprintf(v->bus_info, sizeof(v->bus_info), "PCI:%s", pci_name(dev->pdev));
v->version = RADIO_VERSION;
- v->capabilities = V4L2_CAP_TUNER;
+ v->capabilities = V4L2_CAP_TUNER | V4L2_CAP_RADIO;
return 0;
}
static int vidioc_g_tuner(struct file *file, void *priv,
struct v4l2_tuner *v)
{
- struct radio_device *card = video_drvdata(file);
+ struct maestro *dev = video_drvdata(file);
if (v->index > 0)
return -EINVAL;
- (void)radio_bits_get(card);
+ mutex_lock(&dev->lock);
+ radio_bits_get(dev);
- strcpy(v->name, "FM");
+ strlcpy(v->name, "FM", sizeof(v->name));
v->type = V4L2_TUNER_RADIO;
v->rangelow = FREQ_LO;
v->rangehigh = FREQ_HI;
- v->rxsubchans = V4L2_TUNER_SUB_MONO|V4L2_TUNER_SUB_STEREO;
+ v->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
v->capability = V4L2_TUNER_CAP_LOW;
- if(card->stereo)
+ if (dev->stereo)
v->audmode = V4L2_TUNER_MODE_STEREO;
else
v->audmode = V4L2_TUNER_MODE_MONO;
- v->signal = card->tuned;
+ v->signal = dev->tuned;
+ mutex_unlock(&dev->lock);
return 0;
}
static int vidioc_s_tuner(struct file *file, void *priv,
struct v4l2_tuner *v)
{
- if (v->index > 0)
- return -EINVAL;
- return 0;
+ return v->index ? -EINVAL : 0;
}
static int vidioc_s_frequency(struct file *file, void *priv,
struct v4l2_frequency *f)
{
- struct radio_device *card = video_drvdata(file);
+ struct maestro *dev = video_drvdata(file);
if (f->frequency < FREQ_LO || f->frequency > FREQ_HI)
return -EINVAL;
- radio_bits_set(card, FREQ2BITS(f->frequency));
+ mutex_lock(&dev->lock);
+ radio_bits_set(dev, FREQ2BITS(f->frequency));
+ mutex_unlock(&dev->lock);
return 0;
}
static int vidioc_g_frequency(struct file *file, void *priv,
struct v4l2_frequency *f)
{
- struct radio_device *card = video_drvdata(file);
+ struct maestro *dev = video_drvdata(file);
f->type = V4L2_TUNER_RADIO;
- f->frequency = BITS2FREQ(radio_bits_get(card));
+ mutex_lock(&dev->lock);
+ f->frequency = BITS2FREQ(radio_bits_get(dev));
+ mutex_unlock(&dev->lock);
return 0;
}
static int vidioc_queryctrl(struct file *file, void *priv,
struct v4l2_queryctrl *qc)
{
- int i;
-
- for (i = 0; i < ARRAY_SIZE(radio_qctrl); i++) {
- if (qc->id && qc->id == radio_qctrl[i].id) {
- memcpy(qc, &(radio_qctrl[i]),
- sizeof(*qc));
- return 0;
- }
+ switch (qc->id) {
+ case V4L2_CID_AUDIO_MUTE:
+ return v4l2_ctrl_query_fill(qc, 0, 1, 1, 1);
}
return -EINVAL;
}
static int vidioc_g_ctrl(struct file *file, void *priv,
struct v4l2_control *ctrl)
{
- struct radio_device *card = video_drvdata(file);
+ struct maestro *dev = video_drvdata(file);
switch (ctrl->id) {
case V4L2_CID_AUDIO_MUTE:
- ctrl->value = card->muted;
+ ctrl->value = dev->muted;
return 0;
}
return -EINVAL;
static int vidioc_s_ctrl(struct file *file, void *priv,
struct v4l2_control *ctrl)
{
- struct radio_device *card = video_drvdata(file);
- register u16 io = card->io;
- register u16 omask = inw(io + IO_MASK);
+ struct maestro *dev = video_drvdata(file);
+ u16 io = dev->io;
+ u16 omask;
switch (ctrl->id) {
case V4L2_CID_AUDIO_MUTE:
+ mutex_lock(&dev->lock);
+ omask = inw(io + IO_MASK);
outw(~STR_WREN, io + IO_MASK);
- outw((card->muted = ctrl->value ) ?
- STR_WREN : 0, io);
+ dev->muted = ctrl->value;
+ outw(dev->muted ? STR_WREN : 0, io);
udelay(4);
outw(omask, io + IO_MASK);
msleep(125);
+ mutex_unlock(&dev->lock);
return 0;
}
return -EINVAL;
}
+static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
+{
+ *i = 0;
+ return 0;
+}
+
+static int vidioc_s_input(struct file *filp, void *priv, unsigned int i)
+{
+ return i ? -EINVAL : 0;
+}
+
static int vidioc_g_audio(struct file *file, void *priv,
struct v4l2_audio *a)
{
- if (a->index > 1)
- return -EINVAL;
-
- strcpy(a->name, "Radio");
+ a->index = 0;
+ strlcpy(a->name, "Radio", sizeof(a->name));
a->capability = V4L2_AUDCAP_STEREO;
return 0;
}
-static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
+static int vidioc_s_audio(struct file *file, void *priv,
+ struct v4l2_audio *a)
{
- *i = 0;
- return 0;
+ return a->index ? -EINVAL : 0;
}
-static int vidioc_s_input(struct file *filp, void *priv, unsigned int i)
+static int maestro_open(struct file *file)
{
- if (i != 0)
- return -EINVAL;
return 0;
}
-static int vidioc_s_audio(struct file *file, void *priv,
- struct v4l2_audio *a)
+static int maestro_release(struct file *file)
{
- if (a->index != 0)
- return -EINVAL;
return 0;
}
-static u16 __devinit radio_power_on(struct radio_device *dev)
+static const struct v4l2_file_operations maestro_fops = {
+ .owner = THIS_MODULE,
+ .open = maestro_open,
+ .release = maestro_release,
+ .ioctl = video_ioctl2,
+};
+
+static const struct v4l2_ioctl_ops maestro_ioctl_ops = {
+ .vidioc_querycap = vidioc_querycap,
+ .vidioc_g_tuner = vidioc_g_tuner,
+ .vidioc_s_tuner = vidioc_s_tuner,
+ .vidioc_g_audio = vidioc_g_audio,
+ .vidioc_s_audio = vidioc_s_audio,
+ .vidioc_g_input = vidioc_g_input,
+ .vidioc_s_input = vidioc_s_input,
+ .vidioc_g_frequency = vidioc_g_frequency,
+ .vidioc_s_frequency = vidioc_s_frequency,
+ .vidioc_queryctrl = vidioc_queryctrl,
+ .vidioc_g_ctrl = vidioc_g_ctrl,
+ .vidioc_s_ctrl = vidioc_s_ctrl,
+};
+
+static u16 __devinit radio_power_on(struct maestro *dev)
{
register u16 io = dev->io;
register u32 ofreq;
return (ofreq == radio_bits_get(dev));
}
-static const struct v4l2_ioctl_ops maestro_ioctl_ops = {
- .vidioc_querycap = vidioc_querycap,
- .vidioc_g_tuner = vidioc_g_tuner,
- .vidioc_s_tuner = vidioc_s_tuner,
- .vidioc_g_audio = vidioc_g_audio,
- .vidioc_s_audio = vidioc_s_audio,
- .vidioc_g_input = vidioc_g_input,
- .vidioc_s_input = vidioc_s_input,
- .vidioc_g_frequency = vidioc_g_frequency,
- .vidioc_s_frequency = vidioc_s_frequency,
- .vidioc_queryctrl = vidioc_queryctrl,
- .vidioc_g_ctrl = vidioc_g_ctrl,
- .vidioc_s_ctrl = vidioc_s_ctrl,
-};
-
-static struct video_device maestro_radio = {
- .name = "Maestro radio",
- .fops = &maestro_fops,
- .ioctl_ops = &maestro_ioctl_ops,
- .release = video_device_release,
-};
-
static int __devinit maestro_probe(struct pci_dev *pdev,
const struct pci_device_id *ent)
{
- struct radio_device *radio_unit;
- struct video_device *maestro_radio_inst;
+ struct maestro *dev;
+ struct v4l2_device *v4l2_dev;
int retval;
retval = pci_enable_device(pdev);
retval = -ENOMEM;
- radio_unit = kzalloc(sizeof(*radio_unit), GFP_KERNEL);
- if (radio_unit == NULL) {
+ dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+ if (dev == NULL) {
dev_err(&pdev->dev, "not enough memory\n");
goto err;
}
- radio_unit->io = pci_resource_start(pdev, 0) + GPIO_DATA;
+ v4l2_dev = &dev->v4l2_dev;
+ mutex_init(&dev->lock);
+ dev->pdev = pdev;
- maestro_radio_inst = video_device_alloc();
- if (maestro_radio_inst == NULL) {
- dev_err(&pdev->dev, "not enough memory\n");
+ strlcpy(v4l2_dev->name, "maestro", sizeof(v4l2_dev->name));
+
+ retval = v4l2_device_register(&pdev->dev, v4l2_dev);
+ if (retval < 0) {
+ v4l2_err(v4l2_dev, "Could not register v4l2_device\n");
goto errfr;
}
- memcpy(maestro_radio_inst, &maestro_radio, sizeof(maestro_radio));
- video_set_drvdata(maestro_radio_inst, radio_unit);
- pci_set_drvdata(pdev, maestro_radio_inst);
+ dev->io = pci_resource_start(pdev, 0) + GPIO_DATA;
- retval = video_register_device(maestro_radio_inst, VFL_TYPE_RADIO, radio_nr);
+ strlcpy(dev->vdev.name, v4l2_dev->name, sizeof(dev->vdev.name));
+ dev->vdev.v4l2_dev = v4l2_dev;
+ dev->vdev.fops = &maestro_fops;
+ dev->vdev.ioctl_ops = &maestro_ioctl_ops;
+ dev->vdev.release = video_device_release_empty;
+ video_set_drvdata(&dev->vdev, dev);
+
+ retval = video_register_device(&dev->vdev, VFL_TYPE_RADIO, radio_nr);
if (retval) {
- printk(KERN_ERR "can't register video device!\n");
+ v4l2_err(v4l2_dev, "can't register video device!\n");
goto errfr1;
}
- if (!radio_power_on(radio_unit)) {
+ if (!radio_power_on(dev)) {
retval = -EIO;
goto errunr;
}
- dev_info(&pdev->dev, "version " DRIVER_VERSION " time " __TIME__ " "
- __DATE__ "\n");
- dev_info(&pdev->dev, "radio chip initialized\n");
+ v4l2_info(v4l2_dev, "version " DRIVER_VERSION "\n");
return 0;
errunr:
- video_unregister_device(maestro_radio_inst);
+ video_unregister_device(&dev->vdev);
errfr1:
- video_device_release(maestro_radio_inst);
+ v4l2_device_unregister(v4l2_dev);
errfr:
- kfree(radio_unit);
+ kfree(dev);
err:
return retval;
static void __devexit maestro_remove(struct pci_dev *pdev)
{
- struct video_device *vdev = pci_get_drvdata(pdev);
+ struct v4l2_device *v4l2_dev = dev_get_drvdata(&pdev->dev);
+ struct maestro *dev = to_maestro(v4l2_dev);
- video_unregister_device(vdev);
+ video_unregister_device(&dev->vdev);
+ v4l2_device_unregister(&dev->v4l2_dev);
}
+static struct pci_device_id maestro_r_pci_tbl[] = {
+ { PCI_DEVICE(PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_ESS1968),
+ .class = PCI_CLASS_MULTIMEDIA_AUDIO << 8,
+ .class_mask = 0xffff00 },
+ { PCI_DEVICE(PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_ESS1978),
+ .class = PCI_CLASS_MULTIMEDIA_AUDIO << 8,
+ .class_mask = 0xffff00 },
+ { 0 }
+};
+MODULE_DEVICE_TABLE(pci, maestro_r_pci_tbl);
+
+static struct pci_driver maestro_r_driver = {
+ .name = "maestro_radio",
+ .id_table = maestro_r_pci_tbl,
+ .probe = maestro_probe,
+ .remove = __devexit_p(maestro_remove),
+};
+
static int __init maestro_radio_init(void)
{
int retval = pci_register_driver(&maestro_r_driver);
module_init(maestro_radio_init);
module_exit(maestro_radio_exit);
-
-MODULE_AUTHOR("Adam Tlalka, atlka@pg.gda.pl");
-MODULE_DESCRIPTION("Radio driver for the Maestro PCI sound card radio.");
-MODULE_LICENSE("GPL");
projects / openwrt / staging / blogic.git / commitdiff