linux/drivers/media/dvb-frontends/stv6111.c

// SPDX-License-Identifier: GPL-2.0
/*
 * Driver for the ST STV6111 tuner
 *
 * Copyright (C) 2014 Digital Devices GmbH
 */

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/firmware.h>
#include <linux/i2c.h>
#include <asm/div64.h>

#include "stv6111.h"

#include <media/dvb_frontend.h>

struct stv { … };

struct slookup { … };

static const struct slookup lnagain_nf_lookup[] = …;

static const struct slookup lnagain_iip3_lookup[] = …;

static const struct slookup gain_rfagc_lookup[] = …;

/*
 * This table is 6 dB too low comapred to the others (probably created with
 * a different BB_MAG setting)
 */
static const struct slookup gain_channel_agc_nf_lookup[] = …;

static const struct slookup gain_channel_agc_iip3_lookup[] = …;

static inline u32 muldiv32(u32 a, u32 b, u32 c)
{ … }

static int i2c_read(struct i2c_adapter *adap,
		    u8 adr, u8 *msg, int len, u8 *answ, int alen)
{ … }

static int i2c_write(struct i2c_adapter *adap, u8 adr, u8 *data, int len)
{ … }

static int write_regs(struct stv *state, int reg, int len)
{ … }

static int write_reg(struct stv *state, u8 reg, u8 val)
{ … }

static int read_reg(struct stv *state, u8 reg, u8 *val)
{ … }

static int wait_for_call_done(struct stv *state, u8 mask)
{ … }

static void init_state(struct stv *state)
{ … }

static int attach_init(struct stv *state)
{ … }

static void release(struct dvb_frontend *fe)
{ … }

static int set_bandwidth(struct dvb_frontend *fe, u32 cutoff_frequency)
{ … }

static int set_lof(struct stv *state, u32 local_frequency, u32 cutoff_frequency)
{ … }

static int set_params(struct dvb_frontend *fe)
{ … }

static s32 table_lookup(const struct slookup *table,
			int table_size, u16 reg_value)
{ … }

static int get_rf_strength(struct dvb_frontend *fe, u16 *st)
{ … }

static const struct dvb_tuner_ops tuner_ops = …;

struct dvb_frontend *stv6111_attach(struct dvb_frontend *fe,
				    struct i2c_adapter *i2c, u8 adr)
{ … }
EXPORT_SYMBOL_GPL(…);

MODULE_DESCRIPTION(…) …;
MODULE_AUTHOR(…) …;
MODULE_LICENSE(…) …;