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1 | #ifndef __SOUND_TEA575X_TUNER_H |
2 | #define __SOUND_TEA575X_TUNER_H |
3 | |
4 | /* |
5 | * ALSA driver for TEA5757/5759 Philips AM/FM tuner chips |
6 | * |
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 | * |
19 | * You should have received a copy of the GNU General Public License |
20 | * along with this program; if not, write to the Free Software |
21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
22 | * |
23 | */ |
24 | |
25 | #include <linux/videodev2.h> |
26 | #include <media/v4l2-ctrls.h> |
27 | #include <media/v4l2-dev.h> |
28 | #include <media/v4l2-device.h> |
29 | |
30 | #define TEA575X_FMIF 10700 |
31 | #define TEA575X_AMIF 450 |
32 | |
33 | #define TEA575X_DATA (1 << 0) |
34 | #define TEA575X_CLK (1 << 1) |
35 | #define TEA575X_WREN (1 << 2) |
36 | #define TEA575X_MOST (1 << 3) |
37 | |
38 | struct snd_tea575x; |
39 | |
40 | struct snd_tea575x_ops { |
41 | /* Drivers using snd_tea575x must either define read_ and write_val */ |
42 | void (*write_val)(struct snd_tea575x *tea, u32 val); |
43 | u32 (*read_val)(struct snd_tea575x *tea); |
44 | /* Or define the 3 pin functions */ |
45 | void (*set_pins)(struct snd_tea575x *tea, u8 pins); |
46 | u8 (*get_pins)(struct snd_tea575x *tea); |
47 | void (*set_direction)(struct snd_tea575x *tea, bool output); |
48 | }; |
49 | |
50 | struct snd_tea575x { |
51 | struct v4l2_device *v4l2_dev; |
52 | struct v4l2_file_operations fops; |
53 | struct video_device vd; /* video device */ |
54 | int radio_nr; /* radio_nr */ |
55 | bool tea5759; /* 5759 chip is present */ |
56 | bool has_am; /* Device can tune to AM freqs */ |
57 | bool cannot_read_data; /* Device cannot read the data pin */ |
58 | bool cannot_mute; /* Device cannot mute */ |
59 | bool mute; /* Device is muted? */ |
60 | bool stereo; /* receiving stereo */ |
61 | bool tuned; /* tuned to a station */ |
62 | unsigned int val; /* hw value */ |
63 | u32 band; /* 0: FM, 1: FM-Japan, 2: AM */ |
64 | u32 freq; /* frequency */ |
65 | struct mutex mutex; |
66 | struct snd_tea575x_ops *ops; |
67 | void *private_data; |
68 | u8 card[32]; |
69 | u8 bus_info[32]; |
70 | struct v4l2_ctrl_handler ctrl_handler; |
71 | int (*ext_init)(struct snd_tea575x *tea); |
72 | }; |
73 | |
74 | int snd_tea575x_hw_init(struct snd_tea575x *tea); |
75 | int snd_tea575x_init(struct snd_tea575x *tea, struct module *owner); |
76 | void snd_tea575x_exit(struct snd_tea575x *tea); |
77 | void snd_tea575x_set_freq(struct snd_tea575x *tea); |
78 | |
79 | #endif /* __SOUND_TEA575X_TUNER_H */ |
80 |
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Tags:
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v2.6.34-rc5
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