V4L/DVB: tm6000: Fix several bugs at the usb DVB transfer

Signed-off-by: Stefan Ringel <stefan.ringel@arcor.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/drivers/staging/tm6000/tm6000-dvb.c b/drivers/staging/tm6000/tm6000-dvb.c
index f54f6d9..97bc2d1 100644 (file)
--- 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 <linux/kernel.h>
 #include <linux/usb.h>
+#include <compat.h>
 
 #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); */
 
 }