LXR linux/drivers/media/tuners/mt2060.h

   1/*
   2 *  Driver for Microtune MT2060 "Single chip dual conversion broadband tuner"
   3 *
   4 *  Copyright (c) 2006 Olivier DANET <odanet@caramail.com>
   5 *
   6 *  This program is free software; you can redistribute it and/or modify
   7 *  it under the terms of the GNU General Public License as published by
   8 *  the Free Software Foundation; either version 2 of the License, or
   9 *  (at your option) any later version.
  10 *
  11 *  This program is distributed in the hope that it will be useful,
  12 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 *
  15 *  GNU General Public License for more details.
  16 */
  17
  18#ifndef MT2060_H
  19#define MT2060_H
  20
  21struct dvb_frontend;
  22struct i2c_adapter;
  23
  24/*
  25 * I2C address
  26 * 0x60, ...
  27 */
  28
  29/**
  30 * struct mt2060_platform_data - Platform data for the mt2060 driver
  31 * @clock_out: Clock output setting. 0 = off, 1 = CLK/4, 2 = CLK/2, 3 = CLK/1.
  32 * @if1: First IF used [MHz]. 0 defaults to 1220.
  33 * @i2c_write_max: Maximum number of bytes I2C adapter can write at once.
  34 *  0 defaults to maximum.
  35 * @dvb_frontend: DVB frontend.
  36 */
  37
  38struct mt2060_platform_data {
  39        u8 clock_out;
  40        u16 if1;
  41        unsigned int i2c_write_max:5;
  42        struct dvb_frontend *dvb_frontend;
  43};
  44
  45
  46/* configuration struct for mt2060_attach() */
  47struct mt2060_config {
  48        u8 i2c_address;
  49        u8 clock_out; /* 0 = off, 1 = CLK/4, 2 = CLK/2, 3 = CLK/1 */
  50};
  51
  52#if IS_REACHABLE(CONFIG_MEDIA_TUNER_MT2060)
  53extern struct dvb_frontend * mt2060_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c, struct mt2060_config *cfg, u16 if1);
  54#else
  55static inline struct dvb_frontend * mt2060_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c, struct mt2060_config *cfg, u16 if1)
  56{
  57        printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
  58        return NULL;
  59}
  60#endif // CONFIG_MEDIA_TUNER_MT2060
  61
  62#endif
  63