From 08e60ba0c1c88f86f44909a1b3b8de9960b94c2e Mon Sep 17 00:00:00 2001 From: Stefan Ringel Date: Fri, 5 Feb 2010 20:06:52 -0300 Subject: [PATCH] V4L/DVB: tm6000: Fix several bugs at the usb DVB transfer Signed-off-by: Stefan Ringel Signed-off-by: Mauro Carvalho Chehab --- drivers/staging/tm6000/tm6000-dvb.c | 123 ++++++++++++++++++---------- 1 file changed, 78 insertions(+), 45 deletions(-) diff --git a/drivers/staging/tm6000/tm6000-dvb.c b/drivers/staging/tm6000/tm6000-dvb.c index f54f6d9ea6f4..97bc2d14878e 100644 --- a/drivers/staging/tm6000/tm6000-dvb.c +++ b/drivers/staging/tm6000/tm6000-dvb.c @@ -17,7 +17,9 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ +#include #include +#include #include "tm6000.h" #include "tm6000-regs.h" @@ -30,13 +32,58 @@ #include "tuner-xc2028.h" +static void inline print_err_status (struct tm6000_core *dev, + int packet, int status) +{ + char *errmsg = "Unknown"; + + switch(status) { + case -ENOENT: + errmsg = "unlinked synchronuously"; + break; + case -ECONNRESET: + errmsg = "unlinked asynchronuously"; + break; + case -ENOSR: + errmsg = "Buffer error (overrun)"; + break; + case -EPIPE: + errmsg = "Stalled (device not responding)"; + break; + case -EOVERFLOW: + errmsg = "Babble (bad cable?)"; + break; + case -EPROTO: + errmsg = "Bit-stuff error (bad cable?)"; + break; + case -EILSEQ: + errmsg = "CRC/Timeout (could be anything)"; + break; + case -ETIME: + errmsg = "Device does not respond"; + break; + } + if (packet<0) { + dprintk(dev, 1, "URB status %d [%s].\n", + status, errmsg); + } else { + dprintk(dev, 1, "URB packet %d, status %d [%s].\n", + packet, status, errmsg); + } +} + + +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19) +static void tm6000_urb_received(struct urb *urb, struct pt_regs *ptregs) +#else static void tm6000_urb_received(struct urb *urb) +#endif { int ret; struct tm6000_core* dev = urb->context; - if(urb->status != 0){ - printk(KERN_ERR "tm6000: status != 0\n"); + if(urb->status != 0) { + print_err_status (dev,0,urb->status); } else if(urb->actual_length>0){ dvb_dmx_swfilter(&dev->dvb->demux, urb->transfer_buffer, @@ -56,49 +103,37 @@ static void tm6000_urb_received(struct urb *urb) int tm6000_start_stream(struct tm6000_core *dev) { int ret; - unsigned int pipe, maxPaketSize; + unsigned int pipe, size; struct tm6000_dvb *dvb = dev->dvb; printk(KERN_INFO "tm6000: got start stream request %s\n",__FUNCTION__); tm6000_init_digital_mode(dev); -/* - ret = tm6000_set_led_status(tm6000_dev, 0x1); - if(ret < 0) { - return -1; - } -*/ - dvb->bulk_urb = usb_alloc_urb(0, GFP_KERNEL); if(dvb->bulk_urb == NULL) { printk(KERN_ERR "tm6000: couldn't allocate urb\n"); return -ENOMEM; } - maxPaketSize = dev->bulk_in->desc.wMaxPacketSize; + pipe = usb_rcvbulkpipe(dev->udev, dev->bulk_in->desc.bEndpointAddress + & USB_ENDPOINT_NUMBER_MASK); + + size = usb_maxpacket(dev->udev, pipe, usb_pipeout(pipe)); + size = size * 15; /* 512 x 8 or 12 or 15 */ - dvb->bulk_urb->transfer_buffer = kzalloc(maxPaketSize, GFP_KERNEL); + dvb->bulk_urb->transfer_buffer = kzalloc(size, GFP_KERNEL); if(dvb->bulk_urb->transfer_buffer == NULL) { usb_free_urb(dvb->bulk_urb); printk(KERN_ERR "tm6000: couldn't allocate transfer buffer!\n"); return -ENOMEM; } - pipe = usb_rcvbulkpipe(dev->udev, dev->bulk_in->desc.bEndpointAddress - & USB_ENDPOINT_NUMBER_MASK); - usb_fill_bulk_urb(dvb->bulk_urb, dev->udev, pipe, dvb->bulk_urb->transfer_buffer, - maxPaketSize, + size, tm6000_urb_received, dev); - ret = usb_set_interface(dev->udev, 0, 1); - if(ret < 0) { - printk(KERN_ERR "tm6000: error %i in %s during set interface\n", ret, __FUNCTION__); - return ret; - } - ret = usb_clear_halt(dev->udev, pipe); if(ret < 0) { printk(KERN_ERR "tm6000: error %i in %s during pipe reset\n",ret,__FUNCTION__); @@ -108,11 +143,10 @@ int tm6000_start_stream(struct tm6000_core *dev) printk(KERN_ERR "tm6000: pipe resetted\n"); } -// mutex_lock(&tm6000_driver.open_close_mutex); +/* mutex_lock(&tm6000_driver.open_close_mutex); */ ret = usb_submit_urb(dvb->bulk_urb, GFP_KERNEL); - -// mutex_unlock(&tm6000_driver.open_close_mutex); +/* mutex_unlock(&tm6000_driver.open_close_mutex); */ if (ret) { printk(KERN_ERR "tm6000: submit of urb failed (error=%i)\n",ret); @@ -126,18 +160,12 @@ int tm6000_start_stream(struct tm6000_core *dev) void tm6000_stop_stream(struct tm6000_core *dev) { - int ret; struct tm6000_dvb *dvb = dev->dvb; -// tm6000_set_led_status(tm6000_dev, 0x0); - - ret = usb_set_interface(dev->udev, 0, 0); - if(ret < 0) { - printk(KERN_ERR "tm6000: error %i in %s during set interface\n",ret,__FUNCTION__); - } - if(dvb->bulk_urb) { + printk (KERN_INFO "urb killing\n"); usb_kill_urb(dvb->bulk_urb); + printk (KERN_INFO "urb buffer free\n"); kfree(dvb->bulk_urb->transfer_buffer); usb_free_urb(dvb->bulk_urb); dvb->bulk_urb = NULL; @@ -154,7 +182,7 @@ int tm6000_start_feed(struct dvb_demux_feed *feed) mutex_lock(&dvb->mutex); if(dvb->streams == 0) { dvb->streams = 1; -// mutex_init(&tm6000_dev->streaming_mutex); +/* mutex_init(&tm6000_dev->streming_mutex); */ tm6000_start_stream(dev); } else { @@ -173,14 +201,16 @@ int tm6000_stop_feed(struct dvb_demux_feed *feed) { printk(KERN_INFO "tm6000: got stop feed request %s\n",__FUNCTION__); mutex_lock(&dvb->mutex); - --dvb->streams; - if(0 == dvb->streams) { + printk (KERN_INFO "stream %#x\n", dvb->streams); + --(dvb->streams); + if(dvb->streams == 0) { + printk (KERN_INFO "stop stream\n"); tm6000_stop_stream(dev); -// mutex_destroy(&tm6000_dev->streaming_mutex); +/* mutex_destroy(&tm6000_dev->streaming_mutex); */ } mutex_unlock(&dvb->mutex); -// mutex_destroy(&tm6000_dev->streaming_mutex); +/* mutex_destroy(&tm6000_dev->streaming_mutex); */ return 0; } @@ -191,13 +221,16 @@ int tm6000_dvb_attach_frontend(struct tm6000_core *dev) if(dev->caps.has_zl10353) { struct zl10353_config config = - {.demod_address = dev->demod_addr >> 1, + {.demod_address = dev->demod_addr, .no_tuner = 1, -// .input_frequency = 0x19e9, -// .r56_agc_targets = 0x1c, + .parallel_ts = 1, + .if2 = 45700, + .disable_i2c_gate_ctrl = 1, + .tm6000 = 1, }; dvb->frontend = pseudo_zl10353_attach(dev, &config, +/* dvb->frontend = dvb_attach (zl10353_attach, &config, */ &dev->i2c_adap); } else { @@ -259,8 +292,8 @@ int tm6000_dvb_register(struct tm6000_core *dev) dvb->demux.dmx.capabilities = DMX_TS_FILTERING | DMX_SECTION_FILTERING | DMX_MEMORY_BASED_FILTERING; dvb->demux.priv = dev; - dvb->demux.filternum = 256; - dvb->demux.feednum = 256; + dvb->demux.filternum = 5; /* 256; */ + dvb->demux.feednum = 5; /* 256; */ dvb->demux.start_feed = tm6000_start_feed; dvb->demux.stop_feed = tm6000_stop_feed; dvb->demux.write_to_decoder = NULL; @@ -308,7 +341,7 @@ void tm6000_dvb_unregister(struct tm6000_core *dev) usb_free_urb(bulk_urb); } -// mutex_lock(&tm6000_driver.open_close_mutex); +/* mutex_lock(&tm6000_driver.open_close_mutex); */ if(dvb->frontend) { dvb_frontend_detach(dvb->frontend); dvb_unregister_frontend(dvb->frontend); @@ -318,6 +351,6 @@ void tm6000_dvb_unregister(struct tm6000_core *dev) dvb_dmx_release(&dvb->demux); dvb_unregister_adapter(&dvb->adapter); mutex_destroy(&dvb->mutex); -// mutex_unlock(&tm6000_driver.open_close_mutex); +/* mutex_unlock(&tm6000_driver.open_close_mutex); */ } -- 2.30.2