1 /* SPDX-License-Identifier: GPL-2.0-or-later * <<
2 #ifndef __SOUND_TEA575X_TUNER_H 1 #ifndef __SOUND_TEA575X_TUNER_H
3 #define __SOUND_TEA575X_TUNER_H 2 #define __SOUND_TEA575X_TUNER_H
4 3
5 /* 4 /*
6 * ALSA driver for TEA5757/5759 Philips AM/F 5 * ALSA driver for TEA5757/5759 Philips AM/FM tuner chips
7 * 6 *
8 * Copyright (c) 2004 Jaroslav Kysela <pe 7 * Copyright (c) 2004 Jaroslav Kysela <perex@perex.cz>
>> 8 *
>> 9 * This program is free software; you can redistribute it and/or modify
>> 10 * it under the terms of the GNU General Public License as published by
>> 11 * the Free Software Foundation; either version 2 of the License, or
>> 12 * (at your option) any later version.
>> 13 *
>> 14 * This program is distributed in the hope that it will be useful,
>> 15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
>> 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
>> 17 * GNU General Public License for more details.
>> 18 *
9 */ 19 */
10 20
11 #include <linux/videodev2.h> 21 #include <linux/videodev2.h>
12 #include <media/v4l2-ctrls.h> 22 #include <media/v4l2-ctrls.h>
13 #include <media/v4l2-dev.h> 23 #include <media/v4l2-dev.h>
14 #include <media/v4l2-device.h> 24 #include <media/v4l2-device.h>
15 25
16 #define TEA575X_FMIF 10700 26 #define TEA575X_FMIF 10700
17 #define TEA575X_AMIF 450 27 #define TEA575X_AMIF 450
18 28
19 #define TEA575X_DATA (1 << 0) 29 #define TEA575X_DATA (1 << 0)
20 #define TEA575X_CLK (1 << 1) 30 #define TEA575X_CLK (1 << 1)
21 #define TEA575X_WREN (1 << 2) 31 #define TEA575X_WREN (1 << 2)
22 #define TEA575X_MOST (1 << 3) 32 #define TEA575X_MOST (1 << 3)
23 33
24 struct snd_tea575x; 34 struct snd_tea575x;
25 35
26 struct snd_tea575x_ops { 36 struct snd_tea575x_ops {
27 /* Drivers using snd_tea575x must eith 37 /* Drivers using snd_tea575x must either define read_ and write_val */
28 void (*write_val)(struct snd_tea575x * 38 void (*write_val)(struct snd_tea575x *tea, u32 val);
29 u32 (*read_val)(struct snd_tea575x *te 39 u32 (*read_val)(struct snd_tea575x *tea);
30 /* Or define the 3 pin functions */ 40 /* Or define the 3 pin functions */
31 void (*set_pins)(struct snd_tea575x *t 41 void (*set_pins)(struct snd_tea575x *tea, u8 pins);
32 u8 (*get_pins)(struct snd_tea575x *tea 42 u8 (*get_pins)(struct snd_tea575x *tea);
33 void (*set_direction)(struct snd_tea57 43 void (*set_direction)(struct snd_tea575x *tea, bool output);
34 }; 44 };
35 45
36 struct snd_tea575x { 46 struct snd_tea575x {
37 struct v4l2_device *v4l2_dev; 47 struct v4l2_device *v4l2_dev;
38 struct v4l2_file_operations fops; 48 struct v4l2_file_operations fops;
39 struct video_device vd; /* vid 49 struct video_device vd; /* video device */
40 int radio_nr; /* rad 50 int radio_nr; /* radio_nr */
41 bool tea5759; /* 575 51 bool tea5759; /* 5759 chip is present */
42 bool has_am; /* Dev 52 bool has_am; /* Device can tune to AM freqs */
43 bool cannot_read_data; /* Dev 53 bool cannot_read_data; /* Device cannot read the data pin */
44 bool cannot_mute; /* Dev 54 bool cannot_mute; /* Device cannot mute */
45 bool mute; /* Dev 55 bool mute; /* Device is muted? */
46 bool stereo; /* rec 56 bool stereo; /* receiving stereo */
47 bool tuned; /* tun 57 bool tuned; /* tuned to a station */
48 unsigned int val; /* hw 58 unsigned int val; /* hw value */
49 u32 band; /* 0: 59 u32 band; /* 0: FM, 1: FM-Japan, 2: AM */
50 u32 freq; /* fre 60 u32 freq; /* frequency */
51 struct mutex mutex; 61 struct mutex mutex;
52 const struct snd_tea575x_ops *ops; 62 const struct snd_tea575x_ops *ops;
53 void *private_data; 63 void *private_data;
54 u8 card[32]; 64 u8 card[32];
55 u8 bus_info[32]; 65 u8 bus_info[32];
56 struct v4l2_ctrl_handler ctrl_handler; 66 struct v4l2_ctrl_handler ctrl_handler;
57 int (*ext_init)(struct snd_tea575x *te 67 int (*ext_init)(struct snd_tea575x *tea);
58 }; 68 };
59 69
60 int snd_tea575x_enum_freq_bands(struct snd_tea 70 int snd_tea575x_enum_freq_bands(struct snd_tea575x *tea,
61 struct 71 struct v4l2_frequency_band *band);
62 int snd_tea575x_g_tuner(struct snd_tea575x *te 72 int snd_tea575x_g_tuner(struct snd_tea575x *tea, struct v4l2_tuner *v);
63 int snd_tea575x_s_hw_freq_seek(struct file *fi 73 int snd_tea575x_s_hw_freq_seek(struct file *file, struct snd_tea575x *tea,
64 const struct v 74 const struct v4l2_hw_freq_seek *a);
65 int snd_tea575x_hw_init(struct snd_tea575x *te 75 int snd_tea575x_hw_init(struct snd_tea575x *tea);
66 int snd_tea575x_init(struct snd_tea575x *tea, 76 int snd_tea575x_init(struct snd_tea575x *tea, struct module *owner);
67 void snd_tea575x_exit(struct snd_tea575x *tea) 77 void snd_tea575x_exit(struct snd_tea575x *tea);
68 void snd_tea575x_set_freq(struct snd_tea575x * 78 void snd_tea575x_set_freq(struct snd_tea575x *tea);
69 79
70 #endif /* __SOUND_TEA575X_TUNER_H */ 80 #endif /* __SOUND_TEA575X_TUNER_H */
71 81
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