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@suse.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/videodev.h>
  26
  27 typedef struct snd_tea575x tea575x_t;
  28
  29 struct snd_tea575x_ops {
  30         void (*write)(tea575x_t *tea, unsigned int val);
  31         unsigned int (*read)(tea575x_t *tea);
  32 };
  33
  34 struct snd_tea575x {
  35         snd_card_t *card;
  36         struct video_device vd;         /* video device */
  37         struct file_operations fops;
  38         int dev_nr;                     /* requested device number + 1 */
  39         int vd_registered;              /* video device is registered */
  40         int tea5759;                    /* 5759 chip is present */
  41         unsigned int freq_fixup;        /* crystal onboard */
  42         unsigned int val;               /* hw value */
  43         unsigned long freq;             /* frequency */
  44         struct snd_tea575x_ops *ops;
  45         void *private_data;
  46 };
  47
  48 void snd_tea575x_init(tea575x_t *tea);
  49 void snd_tea575x_exit(tea575x_t *tea);
  50
  51 #endif /* __SOUND_TEA575X_TUNER_H */