LXR linux/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
   7struct digitv_state {
   8        int is_nxt6000;
   9
  10        unsigned char sndbuf[7];
  11        unsigned char rcvbuf[7];
  12};
  13
  14/* protocol (from usblogging and the SDK:
  15 *
  16 * Always 7 bytes bulk message(s) for controlling
  17 *
  18 * First byte describes the command. Reads are 2 consecutive transfer (as always).
  19 *
  20 * General structure:
  21 *
  22 * write or first message of a read:
  23 * <cmdbyte> VV <len> B0 B1 B2 B3
  24 *
  25 * second message of a read
  26 * <cmdbyte> VV <len> R0 R1 R2 R3
  27 *
  28 * whereas 0 < len <= 4
  29 *
  30 * I2C address is stored somewhere inside the device.
  31 *
  32 * 0x01 read from EEPROM
  33 *  VV = offset; B* = 0; R* = value(s)
  34 *
  35 * 0x02 read register of the COFDM
  36 *  VV = register; B* = 0; R* = value(s)
  37 *
  38 * 0x05 write register of the COFDM
  39 *  VV = register; B* = value(s);
  40 *
  41 * 0x06 write to the tuner (only for NXT6000)
  42 *  VV = 0; B* = PLL data; len = 4;
  43 *
  44 * 0x03 read remote control
  45 *  VV = 0; B* = 0; len = 4; R* = key
  46 *
  47 * 0x07 write to the remote (don't know why one should this, resetting ?)
  48 *  VV = 0; B* = key; len = 4;
  49 *
  50 * 0x08 write remote type
  51 *  VV = 0; B[0] = 0x01, len = 4
  52 *
  53 * 0x09 write device init
  54 *  TODO
  55 */
  56#define USB_READ_EEPROM         1
  57
  58#define USB_READ_COFDM          2
  59#define USB_WRITE_COFDM         5
  60
  61#define USB_WRITE_TUNER         6
  62
  63#define USB_READ_REMOTE         3
  64#define USB_WRITE_REMOTE        7
  65#define USB_WRITE_REMOTE_TYPE   8
  66
  67#define USB_DEV_INIT            9
  68
  69#endif
  70