include/sound/tea575x-tuner.h

   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-dev.h>
  27 #include <media/v4l2-ioctl.h>
  28
  29 struct snd_tea575x;
  30
  31 struct snd_tea575x_ops {
  32         void (*write)(struct snd_tea575x *tea, unsigned int val);
  33         unsigned int (*read)(struct snd_tea575x *tea);
  34         void (*mute)(struct snd_tea575x *tea, unsigned int mute);
  35 };
  36
  37 struct snd_tea575x {
  38         struct snd_card *card;
  39         struct video_device *vd;        /* video device */
  40         int dev_nr;                     /* requested device number + 1 */
  41         bool tea5759;                   /* 5759 chip is present */
  42         bool mute;                      /* Device is muted? */
  43         bool stereo;                    /* receiving stereo */
  44         bool tuned;                     /* tuned to a station */
  45         unsigned int freq_fixup;        /* crystal onboard */
  46         unsigned int val;               /* hw value */
  47         unsigned long freq;             /* frequency */
  48         unsigned long in_use;           /* set if the device is in use */
  49         struct snd_tea575x_ops *ops;
  50         void *private_data;
  51 };
  52
  53 void snd_tea575x_init(struct snd_tea575x *tea);
  54 void snd_tea575x_exit(struct snd_tea575x *tea);
  55
  56 #endif /* __SOUND_TEA575X_TUNER_H */