root/drivers/media/usb/dvb-usb/dtt200u.h

INCLUDED FROM

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /* Common header file of Linux driver for the WideView/ Yakumo/ Hama/
   3  * Typhoon/ Yuan DVB-T USB2.0 receiver.
   4  *
   5  * Copyright (C) 2004-5 Patrick Boettcher (patrick.boettcher@posteo.de)
   6  *
   7  * see Documentation/media/dvb-drivers/dvb-usb.rst for more information
   8  */
   9 #ifndef _DVB_USB_DTT200U_H_
  10 #define _DVB_USB_DTT200U_H_
  11 
  12 #define DVB_USB_LOG_PREFIX "dtt200u"
  13 
  14 #include "dvb-usb.h"
  15 
  16 extern int dvb_usb_dtt200u_debug;
  17 #define deb_info(args...) dprintk(dvb_usb_dtt200u_debug,0x01,args)
  18 #define deb_xfer(args...) dprintk(dvb_usb_dtt200u_debug,0x02,args)
  19 
  20 /* guessed protocol description (reverse engineered):
  21  * read
  22  *  00 - USB type 0x02 for usb2.0, 0x01 for usb1.1
  23  *  88 - locking 2 bytes (0x80 0x40 == no signal, 0x89 0x20 == nice signal)
  24  */
  25 
  26 #define GET_SPEED               0x00
  27 #define GET_TUNE_STATUS         0x81
  28 #define GET_RC_CODE             0x84
  29 #define GET_CONFIGURATION       0x88
  30 #define GET_AGC                 0x89
  31 #define GET_SNR                 0x8a
  32 #define GET_VIT_ERR_CNT         0x8c
  33 #define GET_RS_ERR_CNT          0x8d
  34 #define GET_RS_UNCOR_BLK_CNT    0x8e
  35 
  36 /* write
  37  *  01 - init
  38  *  02 - frequency (divided by 250000)
  39  *  03 - bandwidth
  40  *  04 - pid table (index pid(7:0) pid(12:8))
  41  *  05 - reset the pid table
  42  *  08 - transfer switch
  43  */
  44 
  45 #define SET_INIT                0x01
  46 #define SET_RF_FREQ             0x02
  47 #define SET_BANDWIDTH           0x03
  48 #define SET_PID_FILTER          0x04
  49 #define RESET_PID_FILTER        0x05
  50 #define SET_STREAMING           0x08
  51 
  52 extern struct dvb_frontend * dtt200u_fe_attach(struct dvb_usb_device *d);
  53 
  54 #endif