/*
  	STV0900/0903 Multistandard Broadcast Frontend driver
  	Copyright (C) Manu Abraham <abraham.manu@gmail.com>
  
  	Copyright (C) ST Microelectronics
  
  	This program is free software; you can redistribute it and/or modify
  	it under the terms of the GNU General Public License as published by
  	the Free Software Foundation; either version 2 of the License, or
  	(at your option) any later version.
  
  	This program is distributed in the hope that it will be useful,
  	but WITHOUT ANY WARRANTY; without even the implied warranty of
  	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  	GNU General Public License for more details.
  
  	You should have received a copy of the GNU General Public License
  	along with this program; if not, write to the Free Software
  	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
  
  #ifndef __STV090x_H
  #define __STV090x_H
  
  enum stv090x_demodulator {
  	STV090x_DEMODULATOR_0 = 1,
  	STV090x_DEMODULATOR_1
  };
  
  enum stv090x_device {
  	STV0903	=  0,
  	STV0900,
  };
  
  enum stv090x_mode {
  	STV090x_DUAL = 0,
  	STV090x_SINGLE
  };
  
  enum stv090x_tsmode {
  	STV090x_TSMODE_SERIAL_PUNCTURED	= 1,
  	STV090x_TSMODE_SERIAL_CONTINUOUS,
  	STV090x_TSMODE_PARALLEL_PUNCTURED,
  	STV090x_TSMODE_DVBCI
  };
  
  enum stv090x_clkmode {
  	STV090x_CLK_INT = 0, /* Clk i/p = CLKI */
  	STV090x_CLK_EXT = 2 /* Clk i/p = XTALI */
  };
  
  enum stv090x_i2crpt {
  	STV090x_RPTLEVEL_256	= 0,
  	STV090x_RPTLEVEL_128	= 1,
  	STV090x_RPTLEVEL_64	= 2,
  	STV090x_RPTLEVEL_32	= 3,
  	STV090x_RPTLEVEL_16	= 4,
  	STV090x_RPTLEVEL_8	= 5,
  	STV090x_RPTLEVEL_4	= 6,
  	STV090x_RPTLEVEL_2	= 7,
  };
  
  enum stv090x_adc_range {
  	STV090x_ADC_2Vpp	= 0,
  	STV090x_ADC_1Vpp	= 1
  };
  
  struct stv090x_config {
  	enum stv090x_device	device;
  	enum stv090x_mode	demod_mode;
  	enum stv090x_clkmode	clk_mode;
  
  	u32 xtal; /* default: 8000000 */
  	u8 address; /* default: 0x68 */
  
  	u8 ts1_mode;
  	u8 ts2_mode;
  	u32 ts1_clk;
  	u32 ts2_clk;
  
  	u8 ts1_tei : 1;
  	u8 ts2_tei : 1;
  
  	enum stv090x_i2crpt	repeater_level;
  
  	u8			tuner_bbgain; /* default: 10db */
  	enum stv090x_adc_range	adc1_range; /* default: 2Vpp */
  	enum stv090x_adc_range	adc2_range; /* default: 2Vpp */
  
  	bool diseqc_envelope_mode;
  
  	int (*tuner_init) (struct dvb_frontend *fe);
  	int (*tuner_sleep) (struct dvb_frontend *fe);
  	int (*tuner_set_mode) (struct dvb_frontend *fe, enum tuner_mode mode);
  	int (*tuner_set_frequency) (struct dvb_frontend *fe, u32 frequency);
  	int (*tuner_get_frequency) (struct dvb_frontend *fe, u32 *frequency);
  	int (*tuner_set_bandwidth) (struct dvb_frontend *fe, u32 bandwidth);
  	int (*tuner_get_bandwidth) (struct dvb_frontend *fe, u32 *bandwidth);
  	int (*tuner_set_bbgain) (struct dvb_frontend *fe, u32 gain);
  	int (*tuner_get_bbgain) (struct dvb_frontend *fe, u32 *gain);
  	int (*tuner_set_refclk)  (struct dvb_frontend *fe, u32 refclk);
  	int (*tuner_get_status) (struct dvb_frontend *fe, u32 *status);
  	void (*tuner_i2c_lock) (struct dvb_frontend *fe, int lock);
  };
  
  #if IS_ENABLED(CONFIG_DVB_STV090x)
  
  extern struct dvb_frontend *stv090x_attach(const struct stv090x_config *config,
  					   struct i2c_adapter *i2c,
  					   enum stv090x_demodulator demod);
  
  /* dir = 0 -> output, dir = 1 -> input/open-drain */
  extern int stv090x_set_gpio(struct dvb_frontend *fe, u8 gpio,
  		u8 dir, u8 value, u8 xor_value);
  
  #else
  
  static inline struct dvb_frontend *stv090x_attach(const struct stv090x_config *config,
  						  struct i2c_adapter *i2c,
  						  enum stv090x_demodulator demod)
  {
  	printk(KERN_WARNING "%s: driver disabled by Kconfig
  ", __func__);
  	return NULL;
  }
  
  static inline int stv090x_set_gpio(struct dvb_frontend *fe, u8 gpio,
  		u8 opd, u8 value, u8 xor_value)
  {
  	printk(KERN_WARNING "%s: driver disabled by Kconfig
  ", __func__);
  	return -ENODEV;
  }
  #endif /* CONFIG_DVB_STV090x */
  
  #endif /* __STV090x_H */