Re: tm6000 and IR

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Am 08.12.2010 04:55, schrieb Dmitri Belimov:
Hi Stefan

Am 06.12.2010 11:02, schrieb Dmitri Belimov:
Thank you. When I switched to this branch modules is not crash
when USB removed. But disable IR over interrupt after start
video/radio

With my best regards, Dmitry.

changing the interface configuration by initiation isoc urb can
deactivating the interrupt in endpoint
We configure USB stick when modules is loaded

/* Selects the proper interface */
   rc = usb_set_interface(usbdev, 0, 1);

The USB controller reserved one half of bandwith for ISOC. Other
device on USB can work slowely. Much better:

when module loaded
/* Selects the proper interface */
   rc = usb_set_interface(usbdev, 0, 2);

when start video/audio/TS
/* Selects the proper interface */
   rc = usb_set_interface(usbdev, 0, 1);

when stop video/audio/TS
/* Selects the proper interface */
   rc = usb_set_interface(usbdev, 0, 2);

And restart int pipe after each selection. What you mean about it?
Dynamic bandwith utilization.

With my best regards, Dmitry.

No. Here (tm6000_prepare_isoc) is that problem. It resetted the
active interrupt urb pipe and interrupt urb  must reinitialize after
call usb_set_interface, I think.

static int tm6000_prepare_isoc(struct tm6000_core *dev, unsigned int
framesize)
{
      struct tm6000_dmaqueue *dma_q =&dev->vidq;
      int i, j, sb_size, pipe, size, max_packets, num_bufs = 8;
      struct urb *urb;

      /* De-allocates all pending stuff */
      tm6000_uninit_isoc(dev);

      usb_set_interface(dev->udev,
                dev->isoc_in.bInterfaceNumber,
                dev->isoc_in.bAlternateSetting);


      pipe = usb_rcvisocpipe(dev->udev,
                     dev->isoc_in.endp->desc.bEndpointAddress&
                     USB_ENDPOINT_NUMBER_MASK);

      size = usb_maxpacket(dev->udev, pipe, usb_pipeout(pipe));

Can you test without call "usb_set_interface"?
Of course. It works. The interrupt pipe is a live after start/stop watch TV.
Are you make a patch for this?

Mauro, what do you think about this?
Other point is IR remotes. The tm6010 may be tm5600/tm6000 too returned only
two right bytes when received extended nec.

Our remotes was send:

0x86 0x6B 0x00 0xFF

tm6010 return after decode:

0x86 0x00 0x86 0x00

If we use full lenght of key for ir_table

1. need add some code for restore losing byte.

if (ir_table.name == OUR_TV_CARD_IR_TABLE)
  return to ir core byte1 0x6B byte0

Or

2. use only high byte of address for filtering a key.

I'll try number 2 as more robust.

What you mean about it?

second once are better, easier and need small code.

Stefan Ringel
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