1 #ifndef __SOUND_TEA575X_TUNER_H
2 #define __SOUND_TEA575X_TUNER_H
5 * ALSA driver for TEA5757/5759 Philips AM/FM tuner chips
7 * Copyright (c) 2004 Jaroslav Kysela <perex@perex.cz>
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.
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.
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
25 #include <linux/videodev2.h>
26 #include <media/v4l2-dev.h>
27 #include <media/v4l2-ioctl.h>
29 #define TEA575X_DATA (1 << 0)
30 #define TEA575X_CLK (1 << 1)
31 #define TEA575X_WREN (1 << 2)
32 #define TEA575X_MOST (1 << 3)
36 struct snd_tea575x_ops {
37 void (*set_pins)(struct snd_tea575x *tea, u8 pins);
38 u8 (*get_pins)(struct snd_tea575x *tea);
39 void (*set_direction)(struct snd_tea575x *tea, bool output);
43 struct snd_card *card;
44 struct video_device *vd; /* video device */
45 bool tea5759; /* 5759 chip is present */
46 bool mute; /* Device is muted? */
47 bool stereo; /* receiving stereo */
48 bool tuned; /* tuned to a station */
49 unsigned int freq_fixup; /* crystal onboard */
50 unsigned int val; /* hw value */
51 unsigned long freq; /* frequency */
52 unsigned long in_use; /* set if the device is in use */
53 struct snd_tea575x_ops *ops;
57 int snd_tea575x_init(struct snd_tea575x *tea);
58 void snd_tea575x_exit(struct snd_tea575x *tea);
60 #endif /* __SOUND_TEA575X_TUNER_H */