85 строки
2.9 KiB
C
85 строки
2.9 KiB
C
#ifndef __SOUND_TEA575X_TUNER_H
|
|
#define __SOUND_TEA575X_TUNER_H
|
|
|
|
/*
|
|
* ALSA driver for TEA5757/5759 Philips AM/FM tuner chips
|
|
*
|
|
* Copyright (c) 2004 Jaroslav Kysela <perex@perex.cz>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*
|
|
*/
|
|
|
|
#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
|
|
|
|
#define TEA575X_DATA (1 << 0)
|
|
#define TEA575X_CLK (1 << 1)
|
|
#define TEA575X_WREN (1 << 2)
|
|
#define TEA575X_MOST (1 << 3)
|
|
|
|
struct snd_tea575x;
|
|
|
|
struct snd_tea575x_ops {
|
|
/* Drivers using snd_tea575x must either define read_ and write_val */
|
|
void (*write_val)(struct snd_tea575x *tea, u32 val);
|
|
u32 (*read_val)(struct snd_tea575x *tea);
|
|
/* Or define the 3 pin functions */
|
|
void (*set_pins)(struct snd_tea575x *tea, u8 pins);
|
|
u8 (*get_pins)(struct snd_tea575x *tea);
|
|
void (*set_direction)(struct snd_tea575x *tea, bool output);
|
|
};
|
|
|
|
struct snd_tea575x {
|
|
struct v4l2_device *v4l2_dev;
|
|
struct v4l2_file_operations fops;
|
|
struct video_device vd; /* video device */
|
|
int radio_nr; /* radio_nr */
|
|
bool tea5759; /* 5759 chip is present */
|
|
bool has_am; /* Device can tune to AM freqs */
|
|
bool cannot_read_data; /* Device cannot read the data pin */
|
|
bool cannot_mute; /* Device cannot mute */
|
|
bool mute; /* Device is muted? */
|
|
bool stereo; /* receiving stereo */
|
|
bool tuned; /* tuned to a station */
|
|
unsigned int val; /* hw value */
|
|
u32 band; /* 0: FM, 1: FM-Japan, 2: AM */
|
|
u32 freq; /* frequency */
|
|
struct mutex mutex;
|
|
struct snd_tea575x_ops *ops;
|
|
void *private_data;
|
|
u8 card[32];
|
|
u8 bus_info[32];
|
|
struct v4l2_ctrl_handler ctrl_handler;
|
|
int (*ext_init)(struct snd_tea575x *tea);
|
|
};
|
|
|
|
int snd_tea575x_enum_freq_bands(struct snd_tea575x *tea,
|
|
struct v4l2_frequency_band *band);
|
|
int snd_tea575x_g_tuner(struct snd_tea575x *tea, struct v4l2_tuner *v);
|
|
int snd_tea575x_s_hw_freq_seek(struct file *file, struct snd_tea575x *tea,
|
|
const struct v4l2_hw_freq_seek *a);
|
|
int snd_tea575x_hw_init(struct snd_tea575x *tea);
|
|
int snd_tea575x_init(struct snd_tea575x *tea, struct module *owner);
|
|
void snd_tea575x_exit(struct snd_tea575x *tea);
|
|
void snd_tea575x_set_freq(struct snd_tea575x *tea);
|
|
|
|
#endif /* __SOUND_TEA575X_TUNER_H */
|