sound/pci/pcxhr/pcxhr.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3  * Driver for Digigram pcxhr soundcards
   4  *
   5  * main header file
   6  *
   7  * Copyright (c) 2004 by Digigram <alsa@digigram.com>
   8  */
   9
  10 #ifndef __SOUND_PCXHR_H
  11 #define __SOUND_PCXHR_H
  12
  13 #include <linux/interrupt.h>
  14 #include <linux/mutex.h>
  15 #include <sound/pcm.h>
  16
  17 #define PCXHR_DRIVER_VERSION            0x000906        /* 0.9.6 */
  18 #define PCXHR_DRIVER_VERSION_STRING     "0.9.6"         /* 0.9.6 */
  19
  20
  21 #define PCXHR_MAX_CARDS         6
  22 #define PCXHR_PLAYBACK_STREAMS  4
  23
  24 #define PCXHR_GRANULARITY       96      /* min 96 and multiple of 48 */
  25 /* transfer granularity of pipes and the dsp time (MBOX4) */
  26 #define PCXHR_GRANULARITY_MIN   96
  27 /* TODO : granularity could be 64 or 128 */
  28 #define PCXHR_GRANULARITY_HR22  192     /* granularity for stereo cards */
  29
  30 struct snd_pcxhr;
  31 struct pcxhr_mgr;
  32
  33 struct pcxhr_stream;
  34 struct pcxhr_pipe;
  35
  36 enum pcxhr_clock_type {
  37         PCXHR_CLOCK_TYPE_INTERNAL = 0,
  38         PCXHR_CLOCK_TYPE_WORD_CLOCK,
  39         PCXHR_CLOCK_TYPE_AES_SYNC,
  40         PCXHR_CLOCK_TYPE_AES_1,
  41         PCXHR_CLOCK_TYPE_AES_2,
  42         PCXHR_CLOCK_TYPE_AES_3,
  43         PCXHR_CLOCK_TYPE_AES_4,
  44         PCXHR_CLOCK_TYPE_MAX = PCXHR_CLOCK_TYPE_AES_4,
  45         HR22_CLOCK_TYPE_INTERNAL = PCXHR_CLOCK_TYPE_INTERNAL,
  46         HR22_CLOCK_TYPE_AES_SYNC,
  47         HR22_CLOCK_TYPE_AES_1,
  48         HR22_CLOCK_TYPE_MAX = HR22_CLOCK_TYPE_AES_1,
  49 };
  50
  51 struct pcxhr_mgr {
  52         unsigned int num_cards;
  53         struct snd_pcxhr *chip[PCXHR_MAX_CARDS];
  54
  55         struct pci_dev *pci;
  56
  57         int irq;
  58
  59         int granularity;
  60
  61         /* card access with 1 mem bar and 2 io bar's */
  62         unsigned long port[3];
  63
  64         /* share the name */
  65         char name[40];                  /* name of this soundcard */
  66
  67         struct pcxhr_rmh *prmh;
  68
  69         struct mutex lock;              /* interrupt lock */
  70         struct mutex msg_lock;          /* message lock */
  71
  72         struct mutex setup_mutex;       /* mutex used in hw_params, open and close */
  73         struct mutex mixer_mutex;       /* mutex for mixer */
  74
  75         /* hardware interface */
  76         unsigned int dsp_loaded;        /* bit flags of loaded dsp indices */
  77         unsigned int dsp_version;       /* read from embedded once firmware is loaded */
  78         int playback_chips;
  79         int capture_chips;
  80         int fw_file_set;
  81         int firmware_num;
  82         unsigned int is_hr_stereo:1;
  83         unsigned int board_has_aes1:1;  /* if 1 board has AES1 plug and SRC */
  84         unsigned int board_has_analog:1; /* if 0 the board is digital only */
  85         unsigned int board_has_mic:1; /* if 1 the board has microphone input */
  86         unsigned int board_aes_in_192k:1;/* if 1 the aes input plugs do support 192kHz */
  87         unsigned int mono_capture:1; /* if 1 the board does mono capture */
  88         unsigned int capture_ltc:1; /* if 1 the board captures LTC input */
  89
  90         struct snd_dma_buffer hostport;
  91
  92         enum pcxhr_clock_type use_clock_type;   /* clock type selected by mixer */
  93         enum pcxhr_clock_type cur_clock_type;   /* current clock type synced */
  94         int sample_rate;
  95         int ref_count_rate;
  96         int timer_toggle;               /* timer interrupt toggles between the two values 0x200 and 0x300 */
  97         int dsp_time_last;              /* the last dsp time (read by interrupt) */
  98         int dsp_time_err;               /* dsp time errors */
  99         unsigned int src_it_dsp;        /* dsp interrupt source */
 100         unsigned int io_num_reg_cont;   /* backup of IO_NUM_REG_CONT */
 101         unsigned int codec_speed;       /* speed mode of the codecs */
 102         unsigned int sample_rate_real;  /* current real sample rate */
 103         int last_reg_stat;
 104         int async_err_stream_xrun;
 105         int async_err_pipe_xrun;
 106         int async_err_other_last;
 107
 108         unsigned char xlx_cfg;          /* copy of PCXHR_XLX_CFG register */
 109         unsigned char xlx_selmic;       /* copy of PCXHR_XLX_SELMIC register */
 110         unsigned char dsp_reset;        /* copy of PCXHR_DSP_RESET register */
 111 };
 112
 113
 114 enum pcxhr_stream_status {
 115         PCXHR_STREAM_STATUS_FREE,
 116         PCXHR_STREAM_STATUS_OPEN,
 117         PCXHR_STREAM_STATUS_SCHEDULE_RUN,
 118         PCXHR_STREAM_STATUS_STARTED,
 119         PCXHR_STREAM_STATUS_RUNNING,
 120         PCXHR_STREAM_STATUS_SCHEDULE_STOP,
 121         PCXHR_STREAM_STATUS_STOPPED,
 122         PCXHR_STREAM_STATUS_PAUSED
 123 };
 124
 125 struct pcxhr_stream {
 126         struct snd_pcm_substream *substream;
 127         snd_pcm_format_t format;
 128         struct pcxhr_pipe *pipe;
 129
 130         enum pcxhr_stream_status status;        /* free, open, running, draining, pause */
 131
 132         u_int64_t timer_abs_periods;    /* timer: samples elapsed since TRIGGER_START (multiple of period_size) */
 133         u_int32_t timer_period_frag;    /* timer: samples elapsed since last call to snd_pcm_period_elapsed (0..period_size) */
 134         u_int32_t timer_buf_periods;    /* nb of periods in the buffer that have already elapsed */
 135         int timer_is_synced;            /* if(0) : timer needs to be resynced with real hardware pointer */
 136
 137         int channels;
 138 };
 139
 140
 141 enum pcxhr_pipe_status {
 142         PCXHR_PIPE_UNDEFINED,
 143         PCXHR_PIPE_DEFINED
 144 };
 145
 146 struct pcxhr_pipe {
 147         enum pcxhr_pipe_status status;
 148         int is_capture;         /* this is a capture pipe */
 149         int first_audio;        /* first audio num */
 150 };
 151
 152
 153 struct snd_pcxhr {
 154         struct snd_card *card;
 155         struct pcxhr_mgr *mgr;
 156         int chip_idx;           /* zero based */
 157
 158         struct snd_pcm *pcm;            /* PCM */
 159
 160         struct pcxhr_pipe playback_pipe;        /* 1 stereo pipe only */
 161         struct pcxhr_pipe capture_pipe[2];      /* 1 stereo or 2 mono pipes */
 162
 163         struct pcxhr_stream playback_stream[PCXHR_PLAYBACK_STREAMS];
 164         struct pcxhr_stream capture_stream[2];  /* 1 stereo or 2 mono streams */
 165         int nb_streams_play;
 166         int nb_streams_capt;
 167
 168         int analog_playback_active[2];  /* Mixer : Master Playback !mute */
 169         int analog_playback_volume[2];  /* Mixer : Master Playback Volume */
 170         int analog_capture_volume[2];   /* Mixer : Master Capture Volume */
 171         int digital_playback_active[PCXHR_PLAYBACK_STREAMS][2];
 172         int digital_playback_volume[PCXHR_PLAYBACK_STREAMS][2];
 173         int digital_capture_volume[2];  /* Mixer : Digital Capture Volume */
 174         int monitoring_active[2];       /* Mixer : Monitoring Active */
 175         int monitoring_volume[2];       /* Mixer : Monitoring Volume */
 176         int audio_capture_source;       /* Mixer : Audio Capture Source */
 177         int mic_volume;                 /* used by cards with MIC only */
 178         int mic_boost;                  /* used by cards with MIC only */
 179         int mic_active;                 /* used by cards with MIC only */
 180         int analog_capture_active;      /* used by cards with MIC only */
 181         int phantom_power;              /* used by cards with MIC only */
 182
 183         unsigned char aes_bits[5];      /* Mixer : IEC958_AES bits */
 184 };
 185
 186 struct pcxhr_hostport
 187 {
 188         char purgebuffer[6];
 189         char reserved[2];
 190 };
 191
 192 /* exported */
 193 int pcxhr_create_pcm(struct snd_pcxhr *chip);
 194 int pcxhr_set_clock(struct pcxhr_mgr *mgr, unsigned int rate);
 195 int pcxhr_get_external_clock(struct pcxhr_mgr *mgr,
 196                              enum pcxhr_clock_type clock_type,
 197                              int *sample_rate);
 198
 199 #endif /* __SOUND_PCXHR_H */