[linux-dvb] insmod saa7146_core.o debug = 3 for WinTV-NOVA-t

[Alexander Nasonov <anasonov@GMD.DE>]

Hello,
There are no good news (for me) since my last report on
WinTV-NOVA-t problems. My card still doesn't work.
It's tuned but there is no data read from dvr device.
So, today I did the following:
1. I insmoded the saa7146_core.o module with debug = 3
2. I run the test program that first tune and then call
   the setup_demux function (see below)

Test program write this after every read operation:
read("/dev/dvb/adapter0/demux0"): Resource temporarily unavailable

In log file I found this line:
i2c_reset: error_state detected, status:0x00000400

What does this status mean? May be here is a root of my problems?

--
Best regards,
Alexander Nasonov
Fraunhofer Gesellschaft

Log messages and setup_demux function are here:

Jul 16 16:24:29 sat-pc kernel: Linux video capture interface: v1.00
Jul 16 16:24:30 sat-pc kernel: saa7146_init_module
Jul 16 16:24:30 sat-pc kernel: saa7146_init_one()
Jul 16 16:24:30 sat-pc kernel: dvb_register_adapter: registering new adapter 
(TT-Budget/WinTV-NOVA-T  PCI).
Jul 16 16:24:30 sat-pc kernel: PCI: Found IRQ 5 for device 00:0a.0
Jul 16 16:24:30 sat-pc kernel: saa7146_core.o: ==> configure_saa7146
Jul 16 16:24:30 sat-pc kernel: saa7146: rvmalloc called, quant:2
Jul 16 16:24:30 sat-pc kernel: saa7146: alloc page tables
Jul 16 16:24:30 sat-pc kernel: saa7146: clear RAM
Jul 16 16:24:30 sat-pc kernel: saa7146: build page tables
Jul 16 16:24:30 sat-pc kernel: saa7146: page tables built
Jul 16 16:24:30 sat-pc kernel: saa7146_core.o: : bus:0, rev:1, mem:0xc8a5a000.
Jul 16 16:24:30 sat-pc kernel: saa7146_core.o: master_xfer called, num:2
Jul 16 16:24:30 sat-pc kernel: saa7146: ==> i2c_reset
Jul 16 16:24:30 sat-pc kernel: saa7146: ==> i2c_status_check:0x00000400
Jul 16 16:24:30 sat-pc kernel: saa7146: ==> i2c_status_check:0x00000400
Jul 16 16:24:30 sat-pc kernel: saa7146: i2c_reset: error_state detected, 
status:0x00000400
Jul 16 16:24:30 sat-pc kernel: saa7146: ==> i2c_status_check:0x00000100
Jul 16 16:24:30 sat-pc kernel: saa7146: ==> writeout: 0xd000d1ec (before) 
(to:100)
Jul 16 16:24:30 sat-pc kernel: saa7146: ==> i2c_busy_rise_and_fall
Jul 16 16:24:30 sat-pc kernel: saa7146: i2c_busy_rise_and_fall; rise wait 5
Jul 16 16:24:31 sat-pc kernel: saa7146: ==> i2c_status_check:0x00000101
Jul 16 16:24:31 sat-pc kernel: saa7146: i2c_busy_rise_and_fall; fall wait 100
Jul 16 16:24:31 sat-pc kernel: saa7146: ==> i2c_status_check:0x00000101
Jul 16 16:24:31 sat-pc kernel: aa7146: ==> i2c_reset
Jul 16 16:24:31 sat-pc kernel: saa7146: ==> i2c_status_check:0x00000100
Jul 16 16:24:31 sat-pc last message repeated 2 times
--- many lines skiped ---

int setup_demux()
{
   char buf[188];
   int fd, br, slp, i, j;
   struct dmxPesFilterParams pesfilter;

   fd = open("/dev/dvb/adapter0/demux0", O_RDWR | O_NONBLOCK);
   
   if(fd < 0)
   {
      perror("open(\"/dev/dvb/adapter0/demux0\")");
      return -1;
   }

   memset(&pesfilter, 0, sizeof(pesfilter));
   pesfilter.pid = 8192; 
   pesfilter.input = DMX_IN_FRONTEND;
   pesfilter.output = DMX_OUT_TAP;
   pesfilter.pesType = DMX_PES_OTHER;
   pesfilter.flags = DMX_IMMEDIATE_START;

   if(ioctl(fd, DMX_SET_PES_FILTER, &pesfilter) < 0)
   {
      perror("ioctl(DMX_SET_PES_FILTER)");
      return -1;
   }

   for(i = 0; i < 7; ++i)
   {
      br = read(fd, buf, 188);
      if(br == -1)
         perror("read(\"/dev/dvb/adapter0/demux0\")");
      else
         printf("%d bytes read\n", br);
      
      sleep(1);
   }
   
   return fd;
}



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