LXR linux/sound/pci/pcxhr/pcxhr.h

   1/*
   2 * Driver for Digigram pcxhr soundcards
   3 *
   4 * main header file
   5 *
   6 * Copyright (c) 2004 by Digigram <alsa@digigram.com>
   7 *
   8 *   This program is free software; you can redistribute it and/or modify
   9 *   it under the terms of the GNU General Public License as published by
  10 *   the Free Software Foundation; either version 2 of the License, or
  11 *   (at your option) any later version.
  12 *
  13 *   This program is distributed in the hope that it will be useful,
  14 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 *   GNU General Public License for more details.
  17 *
  18 *   You should have received a copy of the GNU General Public License
  19 *   along with this program; if not, write to the Free Software
  20 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  21 */
  22
  23#ifndef __SOUND_PCXHR_H
  24#define __SOUND_PCXHR_H
  25
  26#include <linux/interrupt.h>
  27#include <linux/mutex.h>
  28#include <sound/pcm.h>
  29
  30#define PCXHR_DRIVER_VERSION            0x000906        /* 0.9.6 */
  31#define PCXHR_DRIVER_VERSION_STRING     "0.9.6"         /* 0.9.6 */
  32
  33
  34#define PCXHR_MAX_CARDS         6
  35#define PCXHR_PLAYBACK_STREAMS  4
  36
  37#define PCXHR_GRANULARITY       96      /* min 96 and multiple of 48 */
  38/* transfer granularity of pipes and the dsp time (MBOX4) */
  39#define PCXHR_GRANULARITY_MIN   96
  40/* TODO : granularity could be 64 or 128 */
  41#define PCXHR_GRANULARITY_HR22  192     /* granularity for stereo cards */
  42
  43struct snd_pcxhr;
  44struct pcxhr_mgr;
  45
  46struct pcxhr_stream;
  47struct pcxhr_pipe;
  48
  49enum pcxhr_clock_type {
  50        PCXHR_CLOCK_TYPE_INTERNAL = 0,
  51        PCXHR_CLOCK_TYPE_WORD_CLOCK,
  52        PCXHR_CLOCK_TYPE_AES_SYNC,
  53        PCXHR_CLOCK_TYPE_AES_1,
  54        PCXHR_CLOCK_TYPE_AES_2,
  55        PCXHR_CLOCK_TYPE_AES_3,
  56        PCXHR_CLOCK_TYPE_AES_4,
  57        PCXHR_CLOCK_TYPE_MAX = PCXHR_CLOCK_TYPE_AES_4,
  58        HR22_CLOCK_TYPE_INTERNAL = PCXHR_CLOCK_TYPE_INTERNAL,
  59        HR22_CLOCK_TYPE_AES_SYNC,
  60        HR22_CLOCK_TYPE_AES_1,
  61        HR22_CLOCK_TYPE_MAX = HR22_CLOCK_TYPE_AES_1,
  62};
  63
  64struct pcxhr_mgr {
  65        unsigned int num_cards;
  66        struct snd_pcxhr *chip[PCXHR_MAX_CARDS];
  67
  68        struct pci_dev *pci;
  69
  70        int irq;
  71
  72        int granularity;
  73
  74        /* card access with 1 mem bar and 2 io bar's */
  75        unsigned long port[3];
  76
  77        /* share the name */
  78        char shortname[32];             /* short name of this soundcard */
  79        char longname[96];              /* name of this soundcard */
  80
  81        /* message tasklet */
  82        struct tasklet_struct msg_taskq;
  83        struct pcxhr_rmh *prmh;
  84        /* trigger tasklet */
  85        struct tasklet_struct trigger_taskq;
  86
  87        spinlock_t lock;                /* interrupt spinlock */
  88        spinlock_t msg_lock;            /* message spinlock */
  89
  90        struct mutex setup_mutex;       /* mutex used in hw_params, open and close */
  91        struct mutex mixer_mutex;       /* mutex for mixer */
  92
  93        /* hardware interface */
  94        unsigned int dsp_loaded;        /* bit flags of loaded dsp indices */
  95        unsigned int dsp_version;       /* read from embedded once firmware is loaded */
  96        int playback_chips;
  97        int capture_chips;
  98        int fw_file_set;
  99        int firmware_num;
 100        unsigned int is_hr_stereo:1;
 101        unsigned int board_has_aes1:1;  /* if 1 board has AES1 plug and SRC */
 102        unsigned int board_has_analog:1; /* if 0 the board is digital only */
 103        unsigned int board_has_mic:1; /* if 1 the board has microphone input */
 104        unsigned int board_aes_in_192k:1;/* if 1 the aes input plugs do support 192kHz */
 105        unsigned int mono_capture:1; /* if 1 the board does mono capture */
 106
 107        struct snd_dma_buffer hostport;
 108
 109        enum pcxhr_clock_type use_clock_type;   /* clock type selected by mixer */
 110        enum pcxhr_clock_type cur_clock_type;   /* current clock type synced */
 111        int sample_rate;
 112        int ref_count_rate;
 113        int timer_toggle;               /* timer interrupt toggles between the two values 0x200 and 0x300 */
 114        int dsp_time_last;              /* the last dsp time (read by interrupt) */
 115        int dsp_time_err;               /* dsp time errors */
 116        unsigned int src_it_dsp;        /* dsp interrupt source */
 117        unsigned int io_num_reg_cont;   /* backup of IO_NUM_REG_CONT */
 118        unsigned int codec_speed;       /* speed mode of the codecs */
 119        unsigned int sample_rate_real;  /* current real sample rate */
 120        int last_reg_stat;
 121        int async_err_stream_xrun;
 122        int async_err_pipe_xrun;
 123        int async_err_other_last;
 124
 125        unsigned char xlx_cfg;          /* copy of PCXHR_XLX_CFG register */
 126        unsigned char xlx_selmic;       /* copy of PCXHR_XLX_SELMIC register */
 127        unsigned char dsp_reset;        /* copy of PCXHR_DSP_RESET register */
 128};
 129
 130
 131enum pcxhr_stream_status {
 132        PCXHR_STREAM_STATUS_FREE,
 133        PCXHR_STREAM_STATUS_OPEN,
 134        PCXHR_STREAM_STATUS_SCHEDULE_RUN,
 135        PCXHR_STREAM_STATUS_STARTED,
 136        PCXHR_STREAM_STATUS_RUNNING,
 137        PCXHR_STREAM_STATUS_SCHEDULE_STOP,
 138        PCXHR_STREAM_STATUS_STOPPED,
 139        PCXHR_STREAM_STATUS_PAUSED
 140};
 141
 142struct pcxhr_stream {
 143        struct snd_pcm_substream *substream;
 144        snd_pcm_format_t format;
 145        struct pcxhr_pipe *pipe;
 146
 147        enum pcxhr_stream_status status;        /* free, open, running, draining, pause */
 148
 149        u_int64_t timer_abs_periods;    /* timer: samples elapsed since TRIGGER_START (multiple of period_size) */
 150        u_int32_t timer_period_frag;    /* timer: samples elapsed since last call to snd_pcm_period_elapsed (0..period_size) */
 151        u_int32_t timer_buf_periods;    /* nb of periods in the buffer that have already elapsed */
 152        int timer_is_synced;            /* if(0) : timer needs to be resynced with real hardware pointer */
 153
 154        int channels;
 155};
 156
 157
 158enum pcxhr_pipe_status {
 159        PCXHR_PIPE_UNDEFINED,
 160        PCXHR_PIPE_DEFINED
 161};
 162
 163struct pcxhr_pipe {
 164        enum pcxhr_pipe_status status;
 165        int is_capture;         /* this is a capture pipe */
 166        int first_audio;        /* first audio num */
 167};
 168
 169
 170struct snd_pcxhr {
 171        struct snd_card *card;
 172        struct pcxhr_mgr *mgr;
 173        int chip_idx;           /* zero based */
 174
 175        struct snd_pcm *pcm;            /* PCM */
 176
 177        struct pcxhr_pipe playback_pipe;        /* 1 stereo pipe only */
 178        struct pcxhr_pipe capture_pipe[2];      /* 1 stereo or 2 mono pipes */
 179
 180        struct pcxhr_stream playback_stream[PCXHR_PLAYBACK_STREAMS];
 181        struct pcxhr_stream capture_stream[2];  /* 1 stereo or 2 mono streams */
 182        int nb_streams_play;
 183        int nb_streams_capt;
 184
 185        int analog_playback_active[2];  /* Mixer : Master Playback !mute */
 186        int analog_playback_volume[2];  /* Mixer : Master Playback Volume */
 187        int analog_capture_volume[2];   /* Mixer : Master Capture Volume */
 188        int digital_playback_active[PCXHR_PLAYBACK_STREAMS][2];
 189        int digital_playback_volume[PCXHR_PLAYBACK_STREAMS][2];
 190        int digital_capture_volume[2];  /* Mixer : Digital Capture Volume */
 191        int monitoring_active[2];       /* Mixer : Monitoring Active */
 192        int monitoring_volume[2];       /* Mixer : Monitoring Volume */
 193        int audio_capture_source;       /* Mixer : Audio Capture Source */
 194        int mic_volume;                 /* used by cards with MIC only */
 195        int mic_boost;                  /* used by cards with MIC only */
 196        int mic_active;                 /* used by cards with MIC only */
 197        int analog_capture_active;      /* used by cards with MIC only */
 198        int phantom_power;              /* used by cards with MIC only */
 199
 200        unsigned char aes_bits[5];      /* Mixer : IEC958_AES bits */
 201};
 202
 203struct pcxhr_hostport
 204{
 205        char purgebuffer[6];
 206        char reserved[2];
 207};
 208
 209/* exported */
 210int pcxhr_create_pcm(struct snd_pcxhr *chip);
 211int pcxhr_set_clock(struct pcxhr_mgr *mgr, unsigned int rate);
 212int pcxhr_get_external_clock(struct pcxhr_mgr *mgr,
 213                             enum pcxhr_clock_type clock_type,
 214                             int *sample_rate);
 215
 216#endif /* __SOUND_PCXHR_H */
 217