sound/pci/aw2/aw2-saa7146.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*****************************************************************************
   3  *
   4  * Copyright (C) 2008 Cedric Bregardis <cedric.bregardis@free.fr> and
   5  * Jean-Christian Hassler <jhassler@free.fr>
   6  *
   7  * This file is part of the Audiowerk2 ALSA driver
   8  *
   9  *****************************************************************************/
  10
  11 #ifndef AW2_SAA7146_H
  12 #define AW2_SAA7146_H
  13
  14 #define NB_STREAM_PLAYBACK 2
  15 #define NB_STREAM_CAPTURE 1
  16
  17 #define NUM_STREAM_PLAYBACK_ANA 0
  18 #define NUM_STREAM_PLAYBACK_DIG 1
  19
  20 #define NUM_STREAM_CAPTURE_ANA 0
  21
  22 struct snd_pcm_substream;
  23 typedef void (*snd_aw2_saa7146_it_cb) (struct snd_pcm_substream *);
  24
  25 struct snd_aw2_saa7146_cb_param {
  26         snd_aw2_saa7146_it_cb p_it_callback;
  27         struct snd_pcm_substream *p_callback_param;
  28 };
  29
  30 /* definition of the chip-specific record */
  31
  32 struct snd_aw2_saa7146 {
  33         void __iomem *base_addr;
  34 };
  35
  36 extern void snd_aw2_saa7146_setup(struct snd_aw2_saa7146 *chip,
  37                                   void __iomem *pci_base_addr);
  38 extern int snd_aw2_saa7146_free(struct snd_aw2_saa7146 *chip);
  39
  40 extern void snd_aw2_saa7146_pcm_init_playback(struct snd_aw2_saa7146 *chip,
  41                                               int stream_number,
  42                                               unsigned long dma_addr,
  43                                               unsigned long period_size,
  44                                               unsigned long buffer_size);
  45 extern void snd_aw2_saa7146_pcm_init_capture(struct snd_aw2_saa7146 *chip,
  46                                              int stream_number,
  47                                              unsigned long dma_addr,
  48                                              unsigned long period_size,
  49                                              unsigned long buffer_size);
  50 extern void snd_aw2_saa7146_define_it_playback_callback(unsigned int
  51                                                         stream_number,
  52                                                         snd_aw2_saa7146_it_cb
  53                                                         p_it_callback,
  54                                                         void *p_callback_param);
  55 extern void snd_aw2_saa7146_define_it_capture_callback(unsigned int
  56                                                        stream_number,
  57                                                        snd_aw2_saa7146_it_cb
  58                                                        p_it_callback,
  59                                                        void *p_callback_param);
  60 extern void snd_aw2_saa7146_pcm_trigger_start_capture(struct snd_aw2_saa7146
  61                                                       *chip, int stream_number);
  62 extern void snd_aw2_saa7146_pcm_trigger_stop_capture(struct snd_aw2_saa7146
  63                                                      *chip, int stream_number);
  64
  65 extern void snd_aw2_saa7146_pcm_trigger_start_playback(struct snd_aw2_saa7146
  66                                                        *chip,
  67                                                        int stream_number);
  68 extern void snd_aw2_saa7146_pcm_trigger_stop_playback(struct snd_aw2_saa7146
  69                                                       *chip, int stream_number);
  70
  71 extern irqreturn_t snd_aw2_saa7146_interrupt(int irq, void *dev_id);
  72 extern unsigned int snd_aw2_saa7146_get_hw_ptr_playback(struct snd_aw2_saa7146
  73                                                         *chip,
  74                                                         int stream_number,
  75                                                         unsigned char
  76                                                         *start_addr,
  77                                                         unsigned int
  78                                                         buffer_size);
  79 extern unsigned int snd_aw2_saa7146_get_hw_ptr_capture(struct snd_aw2_saa7146
  80                                                        *chip,
  81                                                        int stream_number,
  82                                                        unsigned char
  83                                                        *start_addr,
  84                                                        unsigned int
  85                                                        buffer_size);
  86
  87 extern void snd_aw2_saa7146_use_digital_input(struct snd_aw2_saa7146 *chip,
  88                                               int use_digital);
  89
  90 extern int snd_aw2_saa7146_is_using_digital_input(struct snd_aw2_saa7146
  91                                                   *chip);
  92
  93 #endif