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 53