root/sound/pci/mixart/mixart.h

INCLUDED FROM

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3  * Driver for Digigram miXart soundcards
   4  *
   5  * main header file
   6  *
   7  * Copyright (c) 2003 by Digigram <alsa@digigram.com>
   8  */
   9 
  10 #ifndef __SOUND_MIXART_H
  11 #define __SOUND_MIXART_H
  12 
  13 #include <linux/interrupt.h>
  14 #include <linux/mutex.h>
  15 #include <sound/pcm.h>
  16 
  17 #define MIXART_DRIVER_VERSION   0x000100        /* 0.1.0 */
  18 
  19 
  20 /*
  21  */
  22 
  23 struct mixart_uid {
  24         u32 object_id;
  25         u32 desc;
  26 };
  27 
  28 struct mem_area {
  29         unsigned long phys;
  30         void __iomem *virt;
  31         struct resource *res;
  32 };
  33 
  34 
  35 struct mixart_route {
  36         unsigned char connected;
  37         unsigned char phase_inv;
  38         int volume;
  39 };
  40 
  41 
  42 /* firmware status codes  */
  43 #define MIXART_MOTHERBOARD_XLX_INDEX  0
  44 #define MIXART_MOTHERBOARD_ELF_INDEX  1
  45 #define MIXART_AESEBUBOARD_XLX_INDEX  2
  46 #define MIXART_HARDW_FILES_MAX_INDEX  3  /* xilinx, elf, AESEBU xilinx */
  47 
  48 #define MIXART_MAX_CARDS        4
  49 #define MSG_FIFO_SIZE           16
  50 
  51 #define MIXART_MAX_PHYS_CONNECTORS  (MIXART_MAX_CARDS * 2 * 2) /* 4 * stereo * (analog+digital) */
  52 
  53 struct mixart_mgr {
  54         unsigned int num_cards;
  55         struct snd_mixart *chip[MIXART_MAX_CARDS];
  56 
  57         struct pci_dev *pci;
  58 
  59         int irq;
  60 
  61         /* memory-maps */
  62         struct mem_area mem[2];
  63 
  64         /* one and only blocking message or notification may be pending  */
  65         u32 pending_event;
  66         wait_queue_head_t msg_sleep;
  67 
  68         /* messages fifo */
  69         u32 msg_fifo[MSG_FIFO_SIZE];
  70         int msg_fifo_readptr;
  71         int msg_fifo_writeptr;
  72         atomic_t msg_processed;       /* number of messages to be processed in tasklet */
  73 
  74         struct mutex lock;              /* interrupt lock */
  75         struct mutex msg_lock;          /* mailbox lock */
  76 
  77         struct mutex setup_mutex; /* mutex used in hw_params, open and close */
  78 
  79         /* hardware interface */
  80         unsigned int dsp_loaded;      /* bit flags of loaded dsp indices */
  81         unsigned int board_type;      /* read from embedded once elf file is loaded, 250 = miXart8, 251 = with AES, 252 = with Cobranet */
  82 
  83         struct snd_dma_buffer flowinfo;
  84         struct snd_dma_buffer bufferinfo;
  85 
  86         struct mixart_uid         uid_console_manager;
  87         int sample_rate;
  88         int ref_count_rate;
  89 
  90         struct mutex mixer_mutex; /* mutex for mixer */
  91 
  92 };
  93 
  94 
  95 #define MIXART_STREAM_STATUS_FREE       0
  96 #define MIXART_STREAM_STATUS_OPEN       1
  97 #define MIXART_STREAM_STATUS_RUNNING    2
  98 #define MIXART_STREAM_STATUS_DRAINING   3
  99 #define MIXART_STREAM_STATUS_PAUSE      4
 100 
 101 #define MIXART_PLAYBACK_STREAMS         4
 102 #define MIXART_CAPTURE_STREAMS          1
 103 
 104 #define MIXART_PCM_ANALOG               0
 105 #define MIXART_PCM_DIGITAL              1
 106 #define MIXART_PCM_TOTAL                2
 107 
 108 #define MIXART_MAX_STREAM_PER_CARD  (MIXART_PCM_TOTAL * (MIXART_PLAYBACK_STREAMS + MIXART_CAPTURE_STREAMS) )
 109 
 110 
 111 #define MIXART_NOTIFY_CARD_MASK         0xF000
 112 #define MIXART_NOTIFY_CARD_OFFSET       12
 113 #define MIXART_NOTIFY_PCM_MASK          0x0F00
 114 #define MIXART_NOTIFY_PCM_OFFSET        8
 115 #define MIXART_NOTIFY_CAPT_MASK         0x0080
 116 #define MIXART_NOTIFY_SUBS_MASK         0x007F
 117 
 118 
 119 struct mixart_stream {
 120         struct snd_pcm_substream *substream;
 121         struct mixart_pipe *pipe;
 122         int pcm_number;
 123 
 124         int status;      /* nothing, running, draining */
 125 
 126         u64  abs_period_elapsed;  /* last absolute stream position where period_elapsed was called (multiple of runtime->period_size) */
 127         u32  buf_periods;         /* periods counter in the buffer (< runtime->periods) */
 128         u32  buf_period_frag;     /* defines with buf_period_pos the exact position in the buffer (< runtime->period_size) */
 129 
 130         int channels;
 131 };
 132 
 133 
 134 enum mixart_pipe_status {
 135         PIPE_UNDEFINED,
 136         PIPE_STOPPED,
 137         PIPE_RUNNING,
 138         PIPE_CLOCK_SET
 139 };
 140 
 141 struct mixart_pipe {
 142         struct mixart_uid group_uid;                    /* id of the pipe, as returned by embedded */
 143         int          stream_count;
 144         struct mixart_uid uid_left_connector;   /* UID's for the audio connectors */
 145         struct mixart_uid uid_right_connector;
 146         enum mixart_pipe_status status;
 147         int references;             /* number of subs openned */
 148         int monitoring;             /* pipe used for monitoring issue */
 149 };
 150 
 151 
 152 struct snd_mixart {
 153         struct snd_card *card;
 154         struct mixart_mgr *mgr;
 155         int chip_idx;               /* zero based */
 156         struct snd_hwdep *hwdep;            /* DSP loader, only for the first card */
 157 
 158         struct snd_pcm *pcm;             /* PCM analog i/o */
 159         struct snd_pcm *pcm_dig;         /* PCM digital i/o */
 160 
 161         /* allocate stereo pipe for instance */
 162         struct mixart_pipe pipe_in_ana;
 163         struct mixart_pipe pipe_out_ana;
 164 
 165         /* if AES/EBU daughter board is available, additional pipes possible on pcm_dig */
 166         struct mixart_pipe pipe_in_dig;
 167         struct mixart_pipe pipe_out_dig;
 168 
 169         struct mixart_stream playback_stream[MIXART_PCM_TOTAL][MIXART_PLAYBACK_STREAMS]; /* 0 = pcm, 1 = pcm_dig */
 170         struct mixart_stream capture_stream[MIXART_PCM_TOTAL];                           /* 0 = pcm, 1 = pcm_dig */
 171 
 172         /* UID's for the physical io's */
 173         struct mixart_uid uid_out_analog_physio;
 174         struct mixart_uid uid_in_analog_physio;
 175 
 176         int analog_playback_active[2];          /* Mixer : Master Playback active (!mute) */
 177         int analog_playback_volume[2];          /* Mixer : Master Playback Volume */
 178         int analog_capture_volume[2];           /* Mixer : Master Capture Volume */
 179         int digital_playback_active[2*MIXART_PLAYBACK_STREAMS][2];      /* Mixer : Digital Playback Active [(analog+AES output)*streams][stereo]*/
 180         int digital_playback_volume[2*MIXART_PLAYBACK_STREAMS][2];      /* Mixer : Digital Playback Volume [(analog+AES output)*streams][stereo]*/
 181         int digital_capture_volume[2][2];       /* Mixer : Digital Capture Volume [analog+AES output][stereo] */
 182         int monitoring_active[2];               /* Mixer : Monitoring Active */
 183         int monitoring_volume[2];               /* Mixer : Monitoring Volume */
 184 };
 185 
 186 struct mixart_bufferinfo
 187 {
 188         u32 buffer_address;
 189         u32 reserved[5];
 190         u32 available_length;
 191         u32 buffer_id;
 192 };
 193 
 194 struct mixart_flowinfo
 195 {
 196         u32 bufferinfo_array_phy_address;
 197         u32 reserved[11];
 198         u32 bufferinfo_count;
 199         u32 capture;
 200 };
 201 
 202 /* exported */
 203 int snd_mixart_create_pcm(struct snd_mixart * chip);
 204 struct mixart_pipe *snd_mixart_add_ref_pipe(struct snd_mixart *chip, int pcm_number, int capture, int monitoring);
 205 int snd_mixart_kill_ref_pipe(struct mixart_mgr *mgr, struct mixart_pipe *pipe, int monitoring);
 206 
 207 #endif /* __SOUND_MIXART_H */