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

   1/* SPDX-License-Identifier: GPL-2.0-or-later */
   2/*
   3 *  Driver for Microtune MT2060 "Single chip dual conversion broadband tuner"
   4 *
   5 *  Copyright (c) 2006 Olivier DANET <odanet@caramail.com>
   6 */
   7
   8#ifndef MT2060_H
   9#define MT2060_H
  10
  11struct dvb_frontend;
  12struct i2c_adapter;
  13
  14/*
  15 * I2C address
  16 * 0x60, ...
  17 */
  18
  19/**
  20 * struct mt2060_platform_data - Platform data for the mt2060 driver
  21 * @clock_out: Clock output setting. 0 = off, 1 = CLK/4, 2 = CLK/2, 3 = CLK/1.
  22 * @if1: First IF used [MHz]. 0 defaults to 1220.
  23 * @i2c_write_max: Maximum number of bytes I2C adapter can write at once.
  24 *  0 defaults to maximum.
  25 * @dvb_frontend: DVB frontend.
  26 */
  27
  28struct mt2060_platform_data {
  29        u8 clock_out;
  30        u16 if1;
  31        unsigned int i2c_write_max:5;
  32        struct dvb_frontend *dvb_frontend;
  33};
  34
  35
  36/* configuration struct for mt2060_attach() */
  37struct mt2060_config {
  38        u8 i2c_address;
  39        u8 clock_out; /* 0 = off, 1 = CLK/4, 2 = CLK/2, 3 = CLK/1 */
  40};
  41
  42#if IS_REACHABLE(CONFIG_MEDIA_TUNER_MT2060)
  43extern struct dvb_frontend * mt2060_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c, struct mt2060_config *cfg, u16 if1);
  44#else
  45static inline struct dvb_frontend * mt2060_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c, struct mt2060_config *cfg, u16 if1)
  46{
  47        printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
  48        return NULL;
  49}
  50#endif // CONFIG_MEDIA_TUNER_MT2060
  51
  52#endif
  53