linux/drivers/media/dvb-frontends/lgs8gxx.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 *    Support for Legend Silicon GB20600 (a.k.a DMB-TH) demodulator
 *    LGS8913, LGS8GL5, LGS8G75
 *    experimental support LGS8G42, LGS8G52
 *
 *    Copyright (C) 2007-2009 David T.L. Wong <[email protected]>
 *    Copyright (C) 2008 Sirius International (Hong Kong) Limited
 *    Timothy Lee <[email protected]> (for initial work on LGS8GL5)
 */

#include <asm/div64.h>
#include <linux/firmware.h>

#include <media/dvb_frontend.h>

#include "lgs8gxx.h"
#include "lgs8gxx_priv.h"

#define dprintk(args...) …

static int debug;
static int fake_signal_str = …;

#define LGS8GXX_FIRMWARE …

module_param(debug, int, 0644);
MODULE_PARM_DESC(…) …;

module_param(fake_signal_str, int, 0644);
MODULE_PARM_DESC(…) …;

/* LGS8GXX internal helper functions */

static int lgs8gxx_write_reg(struct lgs8gxx_state *priv, u8 reg, u8 data)
{ … }

static int lgs8gxx_read_reg(struct lgs8gxx_state *priv, u8 reg, u8 *p_data)
{ … }

static int lgs8gxx_soft_reset(struct lgs8gxx_state *priv)
{ … }

static int wait_reg_mask(struct lgs8gxx_state *priv, u8 reg, u8 mask,
	u8 val, u8 delay, u8 tries)
{ … }

static int lgs8gxx_set_ad_mode(struct lgs8gxx_state *priv)
{ … }

static int lgs8gxx_set_if_freq(struct lgs8gxx_state *priv, u32 freq /*in kHz*/)
{ … }

static int lgs8gxx_get_afc_phase(struct lgs8gxx_state *priv)
{ … }

static int lgs8gxx_set_mode_auto(struct lgs8gxx_state *priv)
{ … }

static int lgs8gxx_set_mode_manual(struct lgs8gxx_state *priv)
{ … }

static int lgs8gxx_is_locked(struct lgs8gxx_state *priv, u8 *locked)
{ … }

/* Wait for Code Acquisition Lock */
static int lgs8gxx_wait_ca_lock(struct lgs8gxx_state *priv, u8 *locked)
{ … }

static int lgs8gxx_is_autodetect_finished(struct lgs8gxx_state *priv,
					  u8 *finished)
{ … }

static int lgs8gxx_autolock_gi(struct lgs8gxx_state *priv, u8 gi, u8 cpn,
	u8 *locked)
{ … }

static int lgs8gxx_auto_detect(struct lgs8gxx_state *priv,
			       u8 *detected_param, u8 *gi)
{ … }

static void lgs8gxx_auto_lock(struct lgs8gxx_state *priv)
{ … }

static int lgs8gxx_set_mpeg_mode(struct lgs8gxx_state *priv,
	u8 serial, u8 clk_pol, u8 clk_gated)
{ … }

/* A/D input peak-to-peak voltage range */
static int lgs8g75_set_adc_vpp(struct lgs8gxx_state *priv,
	u8 sel)
{ … }

/* LGS8913 demod frontend functions */

static int lgs8913_init(struct lgs8gxx_state *priv)
{ … }

static int lgs8g75_init_data(struct lgs8gxx_state *priv)
{ … }

static int lgs8gxx_init(struct dvb_frontend *fe)
{ … }

static void lgs8gxx_release(struct dvb_frontend *fe)
{ … }


static int lgs8gxx_write(struct dvb_frontend *fe, const u8 buf[], int len)
{ … }

static int lgs8gxx_set_fe(struct dvb_frontend *fe)
{ … }

static
int lgs8gxx_get_tune_settings(struct dvb_frontend *fe,
			      struct dvb_frontend_tune_settings *fesettings)
{ … }

static int lgs8gxx_read_status(struct dvb_frontend *fe,
			       enum fe_status *fe_status)
{ … }

static int lgs8gxx_read_signal_agc(struct lgs8gxx_state *priv, u16 *signal)
{ … }

static int lgs8913_read_signal_strength(struct lgs8gxx_state *priv, u16 *signal)
{ … }

static int lgs8g75_read_signal_strength(struct lgs8gxx_state *priv, u16 *signal)
{ … }

static int lgs8gxx_read_signal_strength(struct dvb_frontend *fe, u16 *signal)
{ … }

static int lgs8gxx_read_snr(struct dvb_frontend *fe, u16 *snr)
{ … }

static int lgs8gxx_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
{ … }

static void packet_counter_start(struct lgs8gxx_state *priv)
{ … }

static void packet_counter_stop(struct lgs8gxx_state *priv)
{ … }

static int lgs8gxx_read_ber(struct dvb_frontend *fe, u32 *ber)
{ … }

static int lgs8gxx_i2c_gate_ctrl(struct dvb_frontend *fe, int enable)
{ … }

static const struct dvb_frontend_ops lgs8gxx_ops = …;

struct dvb_frontend *lgs8gxx_attach(const struct lgs8gxx_config *config,
	struct i2c_adapter *i2c)
{ … }
EXPORT_SYMBOL_GPL(…);

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