linux/drivers/media/radio/wl128x/fmdrv_rx.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 *  FM Driver for Connectivity chip of Texas Instruments.
 *  This sub-module of FM driver implements FM RX functionality.
 *
 *  Copyright (C) 2011 Texas Instruments
 *  Author: Raja Mani <[email protected]>
 *  Author: Manjunatha Halli <[email protected]>
 */

#include "fmdrv.h"
#include "fmdrv_common.h"
#include "fmdrv_rx.h"

void fm_rx_reset_rds_cache(struct fmdev *fmdev)
{ … }

void fm_rx_reset_station_info(struct fmdev *fmdev)
{ … }

int fm_rx_set_freq(struct fmdev *fmdev, u32 freq)
{ … }

static int fm_rx_set_channel_spacing(struct fmdev *fmdev, u32 spacing)
{ … }

int fm_rx_seek(struct fmdev *fmdev, u32 seek_upward,
		u32 wrap_around, u32 spacing)
{ … }

int fm_rx_set_volume(struct fmdev *fmdev, u16 vol_to_set)
{ … }

/* Get volume */
int fm_rx_get_volume(struct fmdev *fmdev, u16 *curr_vol)
{ … }

/* To get current band's bottom and top frequency */
int fm_rx_get_band_freq_range(struct fmdev *fmdev, u32 *bot_freq, u32 *top_freq)
{ … }

/* Returns current band index (0-Europe/US; 1-Japan) */
void fm_rx_get_region(struct fmdev *fmdev, u8 *region)
{ … }

/* Sets band (0-Europe/US; 1-Japan) */
int fm_rx_set_region(struct fmdev *fmdev, u8 region_to_set)
{ … }

/* Reads current mute mode (Mute Off/On/Attenuate)*/
int fm_rx_get_mute_mode(struct fmdev *fmdev, u8 *curr_mute_mode)
{ … }

static int fm_config_rx_mute_reg(struct fmdev *fmdev)
{ … }

/* Configures mute mode (Mute Off/On/Attenuate) */
int fm_rx_set_mute_mode(struct fmdev *fmdev, u8 mute_mode_toset)
{ … }

/* Gets RF dependent soft mute mode enable/disable status */
int fm_rx_get_rfdepend_softmute(struct fmdev *fmdev, u8 *curr_mute_mode)
{ … }

/* Sets RF dependent soft mute mode */
int fm_rx_set_rfdepend_softmute(struct fmdev *fmdev, u8 rfdepend_mute)
{ … }

/* Returns the signal strength level of current channel */
int fm_rx_get_rssi_level(struct fmdev *fmdev, u16 *rssilvl)
{ … }

/*
 * Sets the signal strength level that once reached
 * will stop the auto search process
 */
int fm_rx_set_rssi_threshold(struct fmdev *fmdev, short rssi_lvl_toset)
{ … }

/* Returns current RX RSSI threshold value */
int fm_rx_get_rssi_threshold(struct fmdev *fmdev, short *curr_rssi_lvl)
{ … }

/* Sets RX stereo/mono modes */
int fm_rx_set_stereo_mono(struct fmdev *fmdev, u16 mode)
{ … }

/* Gets current RX stereo/mono mode */
int fm_rx_get_stereo_mono(struct fmdev *fmdev, u16 *mode)
{ … }

/* Choose RX de-emphasis filter mode (50us/75us) */
int fm_rx_set_deemphasis_mode(struct fmdev *fmdev, u16 mode)
{ … }

/* Gets current RX de-emphasis filter mode */
int fm_rx_get_deemph_mode(struct fmdev *fmdev, u16 *curr_deemphasis_mode)
{ … }

/* Enable/Disable RX RDS */
int fm_rx_set_rds_mode(struct fmdev *fmdev, u8 rds_en_dis)
{ … }

/* Returns current RX RDS enable/disable status */
int fm_rx_get_rds_mode(struct fmdev *fmdev, u8 *curr_rds_en_dis)
{ … }

/* Sets RDS operation mode (RDS/RDBS) */
int fm_rx_set_rds_system(struct fmdev *fmdev, u8 rds_mode)
{ … }

/* Configures Alternate Frequency switch mode */
int fm_rx_set_af_switch(struct fmdev *fmdev, u8 af_mode)
{ … }

/* Returns Alternate Frequency switch status */
int fm_rx_get_af_switch(struct fmdev *fmdev, u8 *af_mode)
{ … }