/* 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 <hdegoede@redhat.com>
|
*
|
* Based on the ALSA driver for TEA5757/5759 Philips AM/FM radio tuner chips:
|
*
|
* Copyright (c) 2004 Jaroslav Kysela <perex@perex.cz>
|
* Copyright (c) 2012 Hans de Goede <hdegoede@redhat.com>
|
*/
|
|
#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 */
|
