include/sound/ak4xxx-adda.h

   1 #ifndef __SOUND_AK4XXX_ADDA_H
   2 #define __SOUND_AK4XXX_ADDA_H
   3
   4 /*
   5  *   ALSA driver for AK4524 / AK4528 / AK4529 / AK4355 / AK4381
   6  *   AD and DA converters
   7  *
   8  *      Copyright (c) 2000 Jaroslav Kysela <perex@suse.cz>
   9  *
  10  *   This program is free software; you can redistribute it and/or modify
  11  *   it under the terms of the GNU General Public License as published by
  12  *   the Free Software Foundation; either version 2 of the License, or
  13  *   (at your option) any later version.
  14  *
  15  *   This program is distributed in the hope that it will be useful,
  16  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  *   GNU General Public License for more details.
  19  *
  20  *   You should have received a copy of the GNU General Public License
  21  *   along with this program; if not, write to the Free Software
  22  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  23  *
  24  */
  25
  26 #ifndef AK4XXX_MAX_CHIPS
  27 #define AK4XXX_MAX_CHIPS        4
  28 #endif
  29
  30 typedef struct snd_akm4xxx akm4xxx_t;
  31
  32 struct snd_ak4xxx_ops {
  33         void (*lock)(akm4xxx_t *ak, int chip);
  34         void (*unlock)(akm4xxx_t *ak, int chip);
  35         void (*write)(akm4xxx_t *ak, int chip, unsigned char reg, unsigned char val);
  36         // unsigned char (*read)(akm4xxx_t *ak, int chip, unsigned char reg);
  37         void (*set_rate_val)(akm4xxx_t *ak, unsigned int rate);
  38 };
  39
  40 #define AK4XXX_IMAGE_SIZE       (AK4XXX_MAX_CHIPS * 16) /* 64 bytes */
  41
  42 struct snd_akm4xxx {
  43         snd_card_t *card;
  44         unsigned int num_adcs;                          /* AK4524 or AK4528 ADCs */
  45         unsigned int num_dacs;                          /* AK4524 or AK4528 DACs */
  46         unsigned char images[AK4XXX_IMAGE_SIZE];        /* saved register image */
  47         unsigned char ipga_gain[AK4XXX_MAX_CHIPS][2];   /* saved register image for IPGA (AK4528) */
  48         unsigned long private_value[AK4XXX_MAX_CHIPS];  /* helper for driver */
  49         void *private_data[AK4XXX_MAX_CHIPS];           /* helper for driver */
  50         /* template should fill the following fields */
  51         unsigned int idx_offset;                        /* control index offset */
  52         enum {
  53                 SND_AK4524, SND_AK4528, SND_AK4529,
  54                 SND_AK4355, SND_AK4358, SND_AK4381
  55         } type;
  56         struct snd_ak4xxx_ops ops;
  57 };
  58
  59 void snd_akm4xxx_write(akm4xxx_t *ak, int chip, unsigned char reg, unsigned char val);
  60 void snd_akm4xxx_reset(akm4xxx_t *ak, int state);
  61 void snd_akm4xxx_init(akm4xxx_t *ak);
  62 int snd_akm4xxx_build_controls(akm4xxx_t *ak);
  63
  64 #define snd_akm4xxx_get(ak,chip,reg) (ak)->images[(chip) * 16 + (reg)]
  65 #define snd_akm4xxx_set(ak,chip,reg,val) ((ak)->images[(chip) * 16 + (reg)] = (val))
  66 #define snd_akm4xxx_get_ipga(ak,chip,reg) (ak)->ipga_gain[chip][(reg)-4]
  67 #define snd_akm4xxx_set_ipga(ak,chip,reg,val) ((ak)->ipga_gain[chip][(reg)-4] = (val))
  68
  69 #endif /* __SOUND_AK4XXX_ADDA_H */