/* SPDX-License-Identifier: GPL-2.0-or-later */
#ifndef __RADIO_TEA5777_H
#define __RADIO_TEA5777_H
/*
* v4l2 driver for TEA5777 Philips AM/FM radio tuner chips
*
* Copyright (c) 2012 Hans de Goede <[email protected]>
*
* Based on the ALSA driver for TEA5757/5759 Philips AM/FM radio tuner chips:
*
* Copyright (c) 2004 Jaroslav Kysela <[email protected]>
* Copyright (c) 2012 Hans de Goede <[email protected]>
*/
#include <linux/videodev2.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-dev.h>
#include <media/v4l2-device.h>
#define TEA575X_FMIF 10700
#define TEA575X_AMIF 450
struct radio_tea5777;
struct radio_tea5777_ops {
/*
* Write the 6 bytes large write register of the tea5777
*
* val represents the 6 write registers, with byte 1 from the
* datasheet being the most significant byte (so byte 5 of the u64),
* and byte 6 from the datasheet being the least significant byte.
*
* returns 0 on success.
*/
int (*write_reg)(struct radio_tea5777 *tea, u64 val);
/*
* Read the 3 bytes large read register of the tea5777
*
* The read value gets returned in val, akin to write_reg, byte 1 from
* the datasheet is stored as the most significant byte (so byte 2 of
* the u32), and byte 3 from the datasheet gets stored as the least
* significant byte (iow byte 0 of the u32).
*
* returns 0 on success.
*/
int (*read_reg)(struct radio_tea5777 *tea, u32 *val);
};
struct radio_tea5777 {
struct v4l2_device *v4l2_dev;
struct v4l2_file_operations fops;
struct video_device vd; /* video device */
bool has_am; /* Device can tune to AM freqs */
bool write_before_read; /* must write before read quirk */
bool needs_write; /* for write before read quirk */
u32 band; /* current band */
u32 freq; /* current frequency */
u32 audmode; /* last set audmode */
u32 seek_rangelow; /* current hwseek limits */
u32 seek_rangehigh;
u32 read_reg;
u64 write_reg;
struct mutex mutex;
const struct radio_tea5777_ops *ops;
void *private_data;
u8 card[32];
u8 bus_info[32];
struct v4l2_ctrl_handler ctrl_handler;
};
int radio_tea5777_init(struct radio_tea5777 *tea, struct module *owner);
void radio_tea5777_exit(struct radio_tea5777 *tea);
int radio_tea5777_set_freq(struct radio_tea5777 *tea);
#endif /* __RADIO_TEA5777_H */
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