LXR linux/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
  29struct snd_tea575x;
  30
  31struct 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
  37struct snd_tea575x {
  38        struct snd_card *card;
  39        struct video_device *vd;        /* video device */
  40        int dev_nr;                     /* requested device number + 1 */
  41        int tea5759;                    /* 5759 chip is present */
  42        int mute;                       /* Device is muted? */
  43        unsigned int freq_fixup;        /* crystal onboard */
  44        unsigned int val;               /* hw value */
  45        unsigned long freq;             /* frequency */
  46        unsigned long in_use;           /* set if the device is in use */
  47        struct snd_tea575x_ops *ops;
  48        void *private_data;
  49};
  50
  51void snd_tea575x_init(struct snd_tea575x *tea);
  52void snd_tea575x_exit(struct snd_tea575x *tea);
  53
  54#endif /* __SOUND_TEA575X_TUNER_H */
  55