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
  11 struct dvb_frontend;
  12 struct 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
  28 struct 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() */
  37 struct 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)
  43 extern struct dvb_frontend * mt2060_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c, struct mt2060_config *cfg, u16 if1);
  44 #else
  45 static 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