kernel/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
  35 typedef void (*snd_aw2_saa7146_it_cb) (void *);
  36
  37 struct 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
  44 struct snd_aw2_saa7146 {
  45         void __iomem *base_addr;
  46 };
  47
  48 extern void snd_aw2_saa7146_setup(struct snd_aw2_saa7146 *chip,
  49                                   void __iomem *pci_base_addr);
  50 extern int snd_aw2_saa7146_free(struct snd_aw2_saa7146 *chip);
  51
  52 extern 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);
  57 extern 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);
  62 extern 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);
  67 extern 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);
  72 extern void snd_aw2_saa7146_pcm_trigger_start_capture(struct snd_aw2_saa7146
  73                                                       *chip, int stream_number);
  74 extern void snd_aw2_saa7146_pcm_trigger_stop_capture(struct snd_aw2_saa7146
  75                                                      *chip, int stream_number);
  76
  77 extern void snd_aw2_saa7146_pcm_trigger_start_playback(struct snd_aw2_saa7146
  78                                                        *chip,
  79                                                        int stream_number);
  80 extern void snd_aw2_saa7146_pcm_trigger_stop_playback(struct snd_aw2_saa7146
  81                                                       *chip, int stream_number);
  82
  83 extern irqreturn_t snd_aw2_saa7146_interrupt(int irq, void *dev_id);
  84 extern 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);
  91 extern 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
  99 extern void snd_aw2_saa7146_use_digital_input(struct snd_aw2_saa7146 *chip,
 100                                               int use_digital);
 101
 102 extern int snd_aw2_saa7146_is_using_digital_input(struct snd_aw2_saa7146
 103                                                   *chip);
 104
 105 #endif