LXR linux/sound/pci/aw2/aw2-saa7146.h

   1/*****************************************************************************
   2 *
   3 * Copyright (C) 2008 Cedric Bregardis <cedric.bregardis@free.fr> and
   4 * Jean-Christian Hassler <jhassler@free.fr>
   5 *
   6 * This file is part of the Audiowerk2 ALSA driver
   7 *
   8 * The Audiowerk2 ALSA driver is free software; you can redistribute it and/or
   9 * modify it under the terms of the GNU General Public License as published by
  10 * the Free Software Foundation; version 2.
  11 *
  12 * The Audiowerk2 ALSA driver is distributed in the hope that it will be useful,
  13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 * GNU General Public License for more details.
  16 *
  17 * You should have received a copy of the GNU General Public License
  18 * along with the Audiowerk2 ALSA driver; if not, write to the Free Software
  19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
  20 * USA.
  21 *
  22 *****************************************************************************/
  23
  24#ifndef AW2_SAA7146_H
  25#define AW2_SAA7146_H
  26
  27#define NB_STREAM_PLAYBACK 2
  28#define NB_STREAM_CAPTURE 1
  29
  30#define NUM_STREAM_PLAYBACK_ANA 0
  31#define NUM_STREAM_PLAYBACK_DIG 1
  32
  33#define NUM_STREAM_CAPTURE_ANA 0
  34
  35typedef void (*snd_aw2_saa7146_it_cb) (void *);
  36
  37struct snd_aw2_saa7146_cb_param {
  38        snd_aw2_saa7146_it_cb p_it_callback;
  39        void *p_callback_param;
  40};
  41
  42/* definition of the chip-specific record */
  43
  44struct snd_aw2_saa7146 {
  45        void __iomem *base_addr;
  46};
  47
  48extern void snd_aw2_saa7146_setup(struct snd_aw2_saa7146 *chip,
  49                                  void __iomem *pci_base_addr);
  50extern int snd_aw2_saa7146_free(struct snd_aw2_saa7146 *chip);
  51
  52extern void snd_aw2_saa7146_pcm_init_playback(struct snd_aw2_saa7146 *chip,
  53                                              int stream_number,
  54                                              unsigned long dma_addr,
  55                                              unsigned long period_size,
  56                                              unsigned long buffer_size);
  57extern void snd_aw2_saa7146_pcm_init_capture(struct snd_aw2_saa7146 *chip,
  58                                             int stream_number,
  59                                             unsigned long dma_addr,
  60                                             unsigned long period_size,
  61                                             unsigned long buffer_size);
  62extern void snd_aw2_saa7146_define_it_playback_callback(unsigned int
  63                                                        stream_number,
  64                                                        snd_aw2_saa7146_it_cb
  65                                                        p_it_callback,
  66                                                        void *p_callback_param);
  67extern void snd_aw2_saa7146_define_it_capture_callback(unsigned int
  68                                                       stream_number,
  69                                                       snd_aw2_saa7146_it_cb
  70                                                       p_it_callback,
  71                                                       void *p_callback_param);
  72extern void snd_aw2_saa7146_pcm_trigger_start_capture(struct snd_aw2_saa7146
  73                                                      *chip, int stream_number);
  74extern void snd_aw2_saa7146_pcm_trigger_stop_capture(struct snd_aw2_saa7146
  75                                                     *chip, int stream_number);
  76
  77extern void snd_aw2_saa7146_pcm_trigger_start_playback(struct snd_aw2_saa7146
  78                                                       *chip,
  79                                                       int stream_number);
  80extern void snd_aw2_saa7146_pcm_trigger_stop_playback(struct snd_aw2_saa7146
  81                                                      *chip, int stream_number);
  82
  83extern irqreturn_t snd_aw2_saa7146_interrupt(int irq, void *dev_id);
  84extern unsigned int snd_aw2_saa7146_get_hw_ptr_playback(struct snd_aw2_saa7146
  85                                                        *chip,
  86                                                        int stream_number,
  87                                                        unsigned char
  88                                                        *start_addr,
  89                                                        unsigned int
  90                                                        buffer_size);
  91extern unsigned int snd_aw2_saa7146_get_hw_ptr_capture(struct snd_aw2_saa7146
  92                                                       *chip,
  93                                                       int stream_number,
  94                                                       unsigned char
  95                                                       *start_addr,
  96                                                       unsigned int
  97                                                       buffer_size);
  98
  99extern void snd_aw2_saa7146_use_digital_input(struct snd_aw2_saa7146 *chip,
 100                                              int use_digital);
 101
 102extern int snd_aw2_saa7146_is_using_digital_input(struct snd_aw2_saa7146
 103                                                  *chip);
 104
 105#endif
 106