V4L/DVB (9375): Add STB0899 support

/*

	STB0899 Multistandard 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 __STB0899_DRV_H

#define __STB0899_DRV_H

#include <linux/kernel.h>

#include <linux/module.h>

#include "dvb_frontend.h"

#define STB0899_TSMODE_SERIAL		1

#define STB0899_CLKPOL_FALLING		2

#define STB0899_CLKNULL_PARITY		3

#define STB0899_SYNC_FORCED		4

#define STB0899_FECMODE_DSS		5

struct stb0899_s1_reg {

	u16	address;

	u8	data;

};

struct stb0899_s2_reg {

	u16	offset;

	u32	base_address;

	u32	data;

};

struct stb0899_config {

	const struct stb0899_s1_reg	*init_dev;

	const struct stb0899_s2_reg	*init_s2_demod;

	const struct stb0899_s1_reg	*init_s1_demod;

	const struct stb0899_s2_reg	*init_s2_fec;

	const struct stb0899_s1_reg	*init_tst;

	u32	xtal_freq;

	u8	demod_address;

	u8	ts_output_mode;

	u8	block_sync_mode;

	u8	ts_pfbit_toggle;

	u8	clock_polarity;

	u8	data_clk_parity;

	u8	fec_mode;

	u8	data_output_ctl;

	u8	data_fifo_mode;

	u8	out_rate_comp;

	u8	i2c_repeater;

	int	inversion;

	u32	esno_ave;

	u32	esno_quant;

	u32	avframes_coarse;

	u32	avframes_fine;

	u32	miss_threshold;

	u32	uwp_threshold_acq;

	u32	uwp_threshold_track;

	u32	uwp_threshold_sof;

	u32	sof_search_timeout;

	u32	btr_nco_bits;

	u32	btr_gain_shift_offset;

	u32	crl_nco_bits;

	u32	ldpc_max_iter;

	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_rfsiggain)(struct dvb_frontend *fe, u32 rf_gain);

};

extern struct dvb_frontend *stb0899_attach(struct stb0899_config *config, struct i2c_adapter *i2c);

#endif

/*

	STB0899 Multistandard 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 __STB0899_PRIV_H

#define __STB0899_PRIV_H

#include "dvb_frontend.h"

#include "stb0899_drv.h"

#define FE_ERROR				0

#define FE_NOTICE				1

#define FE_INFO					2

#define FE_DEBUG				3

#define FE_DEBUGREG				4

#define dprintk(x, y, z, format, arg...) do {						\

	if (z) {									\

		if	((x > FE_ERROR) && (x > y))					\

			printk(KERN_ERR "%s: " format "\n", __func__ , ##arg);		\

		else if	((x > FE_NOTICE) && (x > y))					\

			printk(KERN_NOTICE "%s: " format "\n", __func__ , ##arg);	\

		else if ((x > FE_INFO) && (x > y))					\

			printk(KERN_INFO "%s: " format "\n", __func__ , ##arg);		\

		else if ((x > FE_DEBUG) && (x > y))					\

			printk(KERN_DEBUG "%s: " format "\n", __func__ , ##arg);	\

	} else {									\

		if (x > y)								\

			printk(format, ##arg);						\

	}										\

} while(0)

#define INRANGE(val, x, y)			(((x <= val) && (val <= y)) ||		\

						 ((y <= val) && (val <= x)) ? 1 : 0)

#define BYTE0					0

#define BYTE1					8

#define BYTE2					16

#define BYTE3					24

#define GETBYTE(x, y)				(((x) >> (y)) & 0xff)

#define MAKEWORD32(a, b, c, d)			(((a) << 24) | ((b) << 16) | ((c) << 8) | (d))

#define MAKEWORD16(a, b)			(((a) << 8) | (b))

#define MIN(x, y)				((x) <= (y) ? (x) : (y))

#define MAX(x, y)				((x) >= (y) ? (x) : (y))

#define ABS(x)					((x) >= 0 ? (x) : -(x))

#define LSB(x)					((x & 0xff))

#define MSB(y)					((y >> 8) & 0xff)

#define STB0899_GETFIELD(bitf, val)		((val >> STB0899_OFFST_##bitf) & ((1 << STB0899_WIDTH_##bitf) - 1))

#define STB0899_SETFIELD(mask, val, width, offset)      (mask & (~(((1 << width) - 1) <<	\

							 offset))) | ((val &			\

							 ((1 << width) - 1)) << offset)

#define STB0899_SETFIELD_VAL(bitf, mask, val)	(mask = (mask & (~(((1 << STB0899_WIDTH_##bitf) - 1) <<\

							 STB0899_OFFST_##bitf))) | \

							 (val << STB0899_OFFST_##bitf))

enum stb0899_status {

	NOAGC1	= 0,

	AGC1OK,

	NOTIMING,

	ANALOGCARRIER,

	TIMINGOK,

	NOAGC2,

	AGC2OK,

	NOCARRIER,

	CARRIEROK,

	NODATA,

	FALSELOCK,

	DATAOK,

	OUTOFRANGE,

	RANGEOK,

	DVBS2_DEMOD_LOCK,

	DVBS2_DEMOD_NOLOCK,

	DVBS2_FEC_LOCK,

	DVBS2_FEC_NOLOCK

};

enum stb0899_modcod {

	STB0899_DUMMY_PLF,

	STB0899_QPSK_14,

	STB0899_QPSK_13,

	STB0899_QPSK_25,

	STB0899_QPSK_12,

	STB0899_QPSK_35,

	STB0899_QPSK_23,

	STB0899_QPSK_34,

	STB0899_QPSK_45,

	STB0899_QPSK_56,

	STB0899_QPSK_89,

	STB0899_QPSK_910,

	STB0899_8PSK_35,

	STB0899_8PSK_23,

	STB0899_8PSK_34,

	STB0899_8PSK_56,

	STB0899_8PSK_89,

	STB0899_8PSK_910,

	STB0899_16APSK_23,

	STB0899_16APSK_34,

	STB0899_16APSK_45,

	STB0899_16APSK_56,

	STB0899_16APSK_89,

	STB0899_16APSK_910,

	STB0899_32APSK_34,

	STB0899_32APSK_45,

	STB0899_32APSK_56,

	STB0899_32APSK_89,

	STB0899_32APSK_910

};

enum stb0899_frame {

	STB0899_LONG_FRAME,

	STB0899_SHORT_FRAME

};

enum stb0899_inversion {

	IQ_SWAP_OFF	= 0,

	IQ_SWAP_ON,

	IQ_SWAP_AUTO

};

enum stb0899_alpha {

	RRC_20,

	RRC_25,

	RRC_35

};

struct stb0899_tab {

	s32 real;

	s32 read;

};

enum stb0899_fec {

	STB0899_FEC_1_2			= 13,

	STB0899_FEC_2_3			= 18,

	STB0899_FEC_3_4			= 21,

	STB0899_FEC_5_6			= 24,

	STB0899_FEC_6_7			= 25,

	STB0899_FEC_7_8			= 26

};

struct stb0899_params {

	u32	freq;					/* Frequency	*/

	u32	srate;					/* Symbol rate	*/

	enum dvbfe_fec fecrate;

};

struct stb0899_internal {

	u32			master_clk;

	u32			freq;			/* Demod internal Frequency		*/

	u32			srate;			/* Demod internal Symbol rate		*/

	enum stb0899_fec	fecrate;		/* Demod internal FEC rate		*/

	u32			srch_range;		/* Demod internal Search Range		*/

	u32			sub_range;		/* Demod current sub range (Hz)		*/

	u32			tuner_step;		/* Tuner step (Hz)			*/

	u32			tuner_offst;		/* Relative offset to carrier (Hz)	*/

	u32			tuner_bw;		/* Current bandwidth of the tuner (Hz)	*/

	s32			mclk;			/* Masterclock Divider factor (binary)	*/

	s32			rolloff;		/* Current RollOff of the filter (x100)	*/

	s16			derot_freq;		/* Current derotator frequency (Hz)	*/

	s16			derot_percent;

	s16			direction;		/* Current derotator search direction	*/

	s16			derot_step;		/* Derotator step (binary value)	*/

	s16			t_timing;		/* Timing loop time constant (ms)	*/

	s16			t_derot;		/* Derotator time constant (ms)		*/

	s16			t_data;			/* Data recovery time constant (ms)	*/

	s16			sub_dir;		/* Direction of the next sub range	*/

	s16			t_agc1;			/* Agc1 time constant (ms)		*/

	s16			t_agc2;			/* Agc2 time constant (ms)		*/

	u32			lock;			/* Demod internal lock state		*/

	enum stb0899_status	status;			/* Demod internal status		*/

	/* DVB-S2 */

	s32			agc_gain;		/* RF AGC Gain				*/

	s32			center_freq;		/* Nominal carrier frequency		*/

	s32			av_frame_coarse;	/* Coarse carrier freq search frames	*/

	s32			av_frame_fine;		/* Fine carrier freq search frames	*/

	s16			step_size;		/* Carrier frequency search step size	*/

	enum stb0899_alpha	rrc_alpha;

	enum stb0899_inversion	inversion;

	enum stb0899_modcod	modcod;

	u8			pilots;			/* Pilots found				*/

	enum stb0899_frame	frame_length;

	u8			v_status;		/* VSTATUS				*/

	u8			err_ctrl;		/* ERRCTRLn				*/

};

struct stb0899_state {

	struct i2c_adapter		*i2c;

	struct stb0899_config		*config;

	struct dvb_frontend		frontend;

	u32				verbose;	/* Cached module verbosity level	*/

	struct stb0899_internal		internal;	/* Device internal parameters		*/

	/*	cached params from API	*/

	enum dvbfe_delsys		delsys;

	struct stb0899_params		params;

	u32				rx_freq;	/* DiSEqC 2.0 receiver freq		*/

	struct mutex			search_lock;

};

/* stb0899.c		*/

extern int stb0899_read_reg(struct stb0899_state *state,

			    unsigned int reg);

extern u32 _stb0899_read_s2reg(struct stb0899_state *state,

			       u32 stb0899_i2cdev,

			       u32 stb0899_base_addr,

			       u16 stb0899_reg_offset);

extern int stb0899_read_regs(struct stb0899_state *state,

			     unsigned int reg, u8 *buf,

			     size_t count);

extern int stb0899_write_regs(struct stb0899_state *state,

			      unsigned int reg, u8 *data,

			      size_t count);

extern int stb0899_write_reg(struct stb0899_state *state,

			     unsigned int reg,

			     u8 data);

extern int stb0899_write_s2reg(struct stb0899_state *state,

			       u32 stb0899_i2cdev,

			       u32 stb0899_base_addr,

			       u16 stb0899_reg_offset,

			       u32 stb0899_data);

#define STB0899_READ_S2REG(DEVICE, REG) 	(_stb0899_read_s2reg(state, DEVICE, STB0899_BASE_##REG, STB0899_OFF0_##REG))

//#define STB0899_WRITE_S2REG(DEVICE, REG, DATA)	(_stb0899_write_s2reg(state, DEVICE, STB0899_BASE_##REG, STB0899_OFF0_##REG, DATA))

/* stb0899_algo.c	*/

extern enum stb0899_status stb0899_dvbs_algo(struct stb0899_state *state);

extern enum stb0899_status stb0899_dvbs2_algo(struct stb0899_state *state);

extern long stb0899_carr_width(struct stb0899_state *state);

#endif //__STB0899_PRIV_H