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22e59e7204
Add muxed i2c adapter for demod tuner i2c bus gate control. Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
121 lines
3.8 KiB
C
121 lines
3.8 KiB
C
/*
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* Afatech AF9013 demodulator driver
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*
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* Copyright (C) 2007 Antti Palosaari <crope@iki.fi>
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* Copyright (C) 2011 Antti Palosaari <crope@iki.fi>
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*
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* Thanks to Afatech who kindly provided information.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#ifndef AF9013_H
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#define AF9013_H
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#include <linux/dvb/frontend.h>
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/*
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* I2C address: 0x1c, 0x1d
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*/
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/**
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* struct af9013_platform_data - Platform data for the af9013 driver
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* @clk: Clock frequency.
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* @tuner: Used tuner model.
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* @if_frequency: IF frequency.
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* @ts_mode: TS mode.
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* @ts_output_pin: TS output pin.
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* @spec_inv: Input spectrum inverted.
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* @api_version: Firmware API version.
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* @gpio: GPIOs.
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* @get_dvb_frontend: Get DVB frontend callback.
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*
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* AF9013/5 GPIOs (mostly guessed):
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* * demod#1-gpio#0 - set demod#2 i2c-addr for dual devices
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* * demod#1-gpio#1 - xtal setting (?)
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* * demod#1-gpio#3 - tuner#1
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* * demod#2-gpio#0 - tuner#2
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* * demod#2-gpio#1 - xtal setting (?)
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*/
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struct af9013_platform_data {
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/*
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* 20480000, 25000000, 28000000, 28800000
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*/
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u32 clk;
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#define AF9013_TUNER_MXL5003D 3 /* MaxLinear */
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#define AF9013_TUNER_MXL5005D 13 /* MaxLinear */
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#define AF9013_TUNER_MXL5005R 30 /* MaxLinear */
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#define AF9013_TUNER_ENV77H11D5 129 /* Panasonic */
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#define AF9013_TUNER_MT2060 130 /* Microtune */
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#define AF9013_TUNER_MC44S803 133 /* Freescale */
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#define AF9013_TUNER_QT1010 134 /* Quantek */
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#define AF9013_TUNER_UNKNOWN 140 /* for can tuners ? */
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#define AF9013_TUNER_MT2060_2 147 /* Microtune */
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#define AF9013_TUNER_TDA18271 156 /* NXP */
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#define AF9013_TUNER_QT1010A 162 /* Quantek */
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#define AF9013_TUNER_MXL5007T 177 /* MaxLinear */
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#define AF9013_TUNER_TDA18218 179 /* NXP */
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u8 tuner;
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u32 if_frequency;
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#define AF9013_TS_MODE_USB 0
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#define AF9013_TS_MODE_PARALLEL 1
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#define AF9013_TS_MODE_SERIAL 2
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u8 ts_mode;
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u8 ts_output_pin;
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bool spec_inv;
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u8 api_version[4];
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#define AF9013_GPIO_ON (1 << 0)
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#define AF9013_GPIO_EN (1 << 1)
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#define AF9013_GPIO_O (1 << 2)
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#define AF9013_GPIO_I (1 << 3)
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#define AF9013_GPIO_LO (AF9013_GPIO_ON|AF9013_GPIO_EN)
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#define AF9013_GPIO_HI (AF9013_GPIO_ON|AF9013_GPIO_EN|AF9013_GPIO_O)
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#define AF9013_GPIO_TUNER_ON (AF9013_GPIO_ON|AF9013_GPIO_EN)
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#define AF9013_GPIO_TUNER_OFF (AF9013_GPIO_ON|AF9013_GPIO_EN|AF9013_GPIO_O)
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u8 gpio[4];
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struct dvb_frontend* (*get_dvb_frontend)(struct i2c_client *);
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struct i2c_adapter* (*get_i2c_adapter)(struct i2c_client *);
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/* private: For legacy media attach wrapper. Do not set value. */
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bool attach_in_use;
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u8 i2c_addr;
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u32 clock;
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};
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#define af9013_config af9013_platform_data
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#define AF9013_TS_USB AF9013_TS_MODE_USB
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#define AF9013_TS_PARALLEL AF9013_TS_MODE_PARALLEL
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#define AF9013_TS_SERIAL AF9013_TS_MODE_SERIAL
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#if IS_REACHABLE(CONFIG_DVB_AF9013)
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/**
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* Attach an af9013 demod
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*
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* @config: pointer to &struct af9013_config with demod configuration.
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* @i2c: i2c adapter to use.
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*
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* return: FE pointer on success, NULL on failure.
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*/
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extern struct dvb_frontend *af9013_attach(const struct af9013_config *config,
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struct i2c_adapter *i2c);
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#else
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static inline struct dvb_frontend *af9013_attach(
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const struct af9013_config *config, struct i2c_adapter *i2c)
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{
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pr_warn("%s: driver disabled by Kconfig\n", __func__);
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return NULL;
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}
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#endif /* CONFIG_DVB_AF9013 */
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#endif /* AF9013_H */
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