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
  43 struct snd_pcxhr;
  44 struct pcxhr_mgr;
  45
  46 struct pcxhr_stream;
  47 struct pcxhr_pipe;
  48
  49 enum 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
  64 struct 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         unsigned int capture_ltc:1; /* if 1 the board captures LTC input */
 107
 108         struct snd_dma_buffer hostport;
 109
 110         enum pcxhr_clock_type use_clock_type;   /* clock type selected by mixer */
 111         enum pcxhr_clock_type cur_clock_type;   /* current clock type synced */
 112         int sample_rate;
 113         int ref_count_rate;
 114         int timer_toggle;               /* timer interrupt toggles between the two values 0x200 and 0x300 */
 115         int dsp_time_last;              /* the last dsp time (read by interrupt) */
 116         int dsp_time_err;               /* dsp time errors */
 117         unsigned int src_it_dsp;        /* dsp interrupt source */
 118         unsigned int io_num_reg_cont;   /* backup of IO_NUM_REG_CONT */
 119         unsigned int codec_speed;       /* speed mode of the codecs */
 120         unsigned int sample_rate_real;  /* current real sample rate */
 121         int last_reg_stat;
 122         int async_err_stream_xrun;
 123         int async_err_pipe_xrun;
 124         int async_err_other_last;
 125
 126         unsigned char xlx_cfg;          /* copy of PCXHR_XLX_CFG register */
 127         unsigned char xlx_selmic;       /* copy of PCXHR_XLX_SELMIC register */
 128         unsigned char dsp_reset;        /* copy of PCXHR_DSP_RESET register */
 129 };
 130
 131
 132 enum pcxhr_stream_status {
 133         PCXHR_STREAM_STATUS_FREE,
 134         PCXHR_STREAM_STATUS_OPEN,
 135         PCXHR_STREAM_STATUS_SCHEDULE_RUN,
 136         PCXHR_STREAM_STATUS_STARTED,
 137         PCXHR_STREAM_STATUS_RUNNING,
 138         PCXHR_STREAM_STATUS_SCHEDULE_STOP,
 139         PCXHR_STREAM_STATUS_STOPPED,
 140         PCXHR_STREAM_STATUS_PAUSED
 141 };
 142
 143 struct pcxhr_stream {
 144         struct snd_pcm_substream *substream;
 145         snd_pcm_format_t format;
 146         struct pcxhr_pipe *pipe;
 147
 148         enum pcxhr_stream_status status;        /* free, open, running, draining, pause */
 149
 150         u_int64_t timer_abs_periods;    /* timer: samples elapsed since TRIGGER_START (multiple of period_size) */
 151         u_int32_t timer_period_frag;    /* timer: samples elapsed since last call to snd_pcm_period_elapsed (0..period_size) */
 152         u_int32_t timer_buf_periods;    /* nb of periods in the buffer that have already elapsed */
 153         int timer_is_synced;            /* if(0) : timer needs to be resynced with real hardware pointer */
 154
 155         int channels;
 156 };
 157
 158
 159 enum pcxhr_pipe_status {
 160         PCXHR_PIPE_UNDEFINED,
 161         PCXHR_PIPE_DEFINED
 162 };
 163
 164 struct pcxhr_pipe {
 165         enum pcxhr_pipe_status status;
 166         int is_capture;         /* this is a capture pipe */
 167         int first_audio;        /* first audio num */
 168 };
 169
 170
 171 struct snd_pcxhr {
 172         struct snd_card *card;
 173         struct pcxhr_mgr *mgr;
 174         int chip_idx;           /* zero based */
 175
 176         struct snd_pcm *pcm;            /* PCM */
 177
 178         struct pcxhr_pipe playback_pipe;        /* 1 stereo pipe only */
 179         struct pcxhr_pipe capture_pipe[2];      /* 1 stereo or 2 mono pipes */
 180
 181         struct pcxhr_stream playback_stream[PCXHR_PLAYBACK_STREAMS];
 182         struct pcxhr_stream capture_stream[2];  /* 1 stereo or 2 mono streams */
 183         int nb_streams_play;
 184         int nb_streams_capt;
 185
 186         int analog_playback_active[2];  /* Mixer : Master Playback !mute */
 187         int analog_playback_volume[2];  /* Mixer : Master Playback Volume */
 188         int analog_capture_volume[2];   /* Mixer : Master Capture Volume */
 189         int digital_playback_active[PCXHR_PLAYBACK_STREAMS][2];
 190         int digital_playback_volume[PCXHR_PLAYBACK_STREAMS][2];
 191         int digital_capture_volume[2];  /* Mixer : Digital Capture Volume */
 192         int monitoring_active[2];       /* Mixer : Monitoring Active */
 193         int monitoring_volume[2];       /* Mixer : Monitoring Volume */
 194         int audio_capture_source;       /* Mixer : Audio Capture Source */
 195         int mic_volume;                 /* used by cards with MIC only */
 196         int mic_boost;                  /* used by cards with MIC only */
 197         int mic_active;                 /* used by cards with MIC only */
 198         int analog_capture_active;      /* used by cards with MIC only */
 199         int phantom_power;              /* used by cards with MIC only */
 200
 201         unsigned char aes_bits[5];      /* Mixer : IEC958_AES bits */
 202 };
 203
 204 struct pcxhr_hostport
 205 {
 206         char purgebuffer[6];
 207         char reserved[2];
 208 };
 209
 210 /* exported */
 211 int pcxhr_create_pcm(struct snd_pcxhr *chip);
 212 int pcxhr_set_clock(struct pcxhr_mgr *mgr, unsigned int rate);
 213 int pcxhr_get_external_clock(struct pcxhr_mgr *mgr,
 214                              enum pcxhr_clock_type clock_type,
 215                              int *sample_rate);
 216
 217 #endif /* __SOUND_PCXHR_H */