drivers/media/usb/dvb-usb/digitv.h

   1 #ifndef _DVB_USB_DIGITV_H_
   2 #define _DVB_USB_DIGITV_H_
   3
   4 #define DVB_USB_LOG_PREFIX "digitv"
   5 #include "dvb-usb.h"
   6
   7 struct digitv_state {
   8     int is_nxt6000;
   9 };
  10
  11 /* protocol (from usblogging and the SDK:
  12  *
  13  * Always 7 bytes bulk message(s) for controlling
  14  *
  15  * First byte describes the command. Reads are 2 consecutive transfer (as always).
  16  *
  17  * General structure:
  18  *
  19  * write or first message of a read:
  20  * <cmdbyte> VV <len> B0 B1 B2 B3
  21  *
  22  * second message of a read
  23  * <cmdbyte> VV <len> R0 R1 R2 R3
  24  *
  25  * whereas 0 < len <= 4
  26  *
  27  * I2C address is stored somewhere inside the device.
  28  *
  29  * 0x01 read from EEPROM
  30  *  VV = offset; B* = 0; R* = value(s)
  31  *
  32  * 0x02 read register of the COFDM
  33  *  VV = register; B* = 0; R* = value(s)
  34  *
  35  * 0x05 write register of the COFDM
  36  *  VV = register; B* = value(s);
  37  *
  38  * 0x06 write to the tuner (only for NXT6000)
  39  *  VV = 0; B* = PLL data; len = 4;
  40  *
  41  * 0x03 read remote control
  42  *  VV = 0; B* = 0; len = 4; R* = key
  43  *
  44  * 0x07 write to the remote (don't know why one should this, resetting ?)
  45  *  VV = 0; B* = key; len = 4;
  46  *
  47  * 0x08 write remote type
  48  *  VV = 0; B[0] = 0x01, len = 4
  49  *
  50  * 0x09 write device init
  51  *  TODO
  52  */
  53 #define USB_READ_EEPROM         1
  54
  55 #define USB_READ_COFDM          2
  56 #define USB_WRITE_COFDM         5
  57
  58 #define USB_WRITE_TUNER         6
  59
  60 #define USB_READ_REMOTE         3
  61 #define USB_WRITE_REMOTE        7
  62 #define USB_WRITE_REMOTE_TYPE   8
  63
  64 #define USB_DEV_INIT            9
  65
  66 #endif