radio-tea5777.h
2.92 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
#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>
*
* 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
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;
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 */