sound/oss/ad1889.h

   1 #ifndef _AD1889_H_
   2 #define _AD1889_H_
   3
   4 #define AD_DSWSMC       0x00    /* DMA input wave/syn mixer control */
   5 #define AD_DSRAMC       0x02    /* DMA output resamp/ADC mixer control */
   6 #define AD_DSWADA       0x04    /* DMA input wave attenuation */
   7 #define AD_DSSYDA       0x06    /* DMA input syn attentuation */
   8 #define AD_DSWAS        0x08    /* wave input sample rate */
   9 #define AD_DSRES        0x0a    /* resampler output sample rate */
  10 #define AD_DSCCS        0x0c    /* chip control/status */
  11
  12 #define AD_DMARESBA     0x40    /* RES base addr */
  13 #define AD_DMARESCA     0x44    /* RES current addr */
  14 #define AD_DMARESBC     0x48    /* RES base cnt */
  15 #define AD_DMARESCC     0x4c    /* RES current count */
  16 #define AD_DMAADCBA     0x50    /* ADC */
  17 #define AD_DMAADCCA     0x54
  18 #define AD_DMAADCBC     0x58
  19 #define AD_DMAADCCC     0x5c
  20 #define AD_DMASYNBA     0x60    /* SYN */
  21 #define AD_DMASYNCA     0x64
  22 #define AD_DMASYNBC     0x68
  23 #define AD_DMASYNCC     0x6c
  24 #define AD_DMAWAVBA     0x70    /* WAV */
  25 #define AD_DMAWAVCA     0x74
  26 #define AD_DMAWAVBC     0x78
  27 #define AD_DMAWAVCC     0x7c
  28 #define AD_DMARESICC    0x80    /* RES interrupt current count */
  29 #define AD_DMARESIBC    0x84    /* RES interrupt base count */
  30 #define AD_DMAADCICC    0x88    /* ADC interrupt current count */
  31 #define AD_DMAADCIBC    0x8c    /* ADC interrupt base count */
  32 #define AD_DMASYNICC    0x90    /* SYN interrupt current count */
  33 #define AD_DMASYNIBC    0x94    /* SYN interrupt base count */
  34 #define AD_DMAWAVICC    0x98    /* WAV interrupt current count */
  35 #define AD_DMAWAVIBC    0x9c    /* WAV interrupt base count */
  36 #define AD_DMARESCTRL   0xa0    /* RES PCI control/status */
  37 #define AD_DMAADCCTRL   0xa8    /* ADC PCI control/status */
  38 #define AD_DMASYNCTRL   0xb0    /* SYN PCI control/status */
  39 #define AD_DMAWAVCTRL   0xb8    /* WAV PCI control/status */
  40 #define AD_DMADISR      0xc0    /* PCI DMA intr status */
  41 #define AD_DMACHSS      0xc4    /* PCI DMA channel stop status */
  42
  43 #define AD_GPIOIPC      0xc8    /* IO port ctrl */
  44 #define AD_GPIOOP       0xca    /* IO output status */
  45 #define AD_GPIOIP       0xcc    /* IO input status */
  46
  47 /* AC97 registers, 0x100 - 0x17f; see ac97.h */
  48 #define AD_ACIC         0x180   /* AC Link interface ctrl */
  49
  50 /* OPL3; BAR1 */
  51 #define AD_OPLM0AS      0x00    /* Music0 address/status */
  52 #define AD_OPLM0DATA    0x01    /* Music0 data */
  53 #define AD_OPLM1A       0x02    /* Music1 address */
  54 #define AD_OPLM1DATA    0x03    /* Music1 data */
  55 /* 0x04-0x0f reserved */
  56
  57 /* MIDI; BAR2 */
  58 #define AD_MIDA         0x00    /* MIDI data */
  59 #define AD_MISC         0x01    /* MIDI status/cmd */
  60 /* 0x02-0xff reserved */
  61
  62 #define AD_DSIOMEMSIZE  512
  63 #define AD_OPLMEMSIZE   16
  64 #define AD_MIDIMEMSIZE  16
  65
  66 #define AD_WAV_STATE    0
  67 #define AD_ADC_STATE    1
  68 #define AD_MAX_STATES   2
  69
  70 #define DMA_SIZE        (128*1024)
  71
  72 #define DMA_FLAG_MAPPED 1
  73
  74 struct ad1889_dev;
  75
  76 typedef struct ad1889_state {
  77         struct ad1889_dev *card;
  78
  79         mode_t open_mode;
  80         struct dmabuf {
  81                 unsigned int rate;
  82                 unsigned char fmt, enable;
  83
  84                 /* buf management */
  85                 size_t rawbuf_size;
  86                 void *rawbuf;
  87                 dma_addr_t dma_handle;  /* mapped address */
  88                 unsigned long dma_len;  /* number of bytes mapped */
  89
  90                 /* indexes into rawbuf for setting up DMA engine */
  91                 volatile unsigned long rd_ptr, wr_ptr;
  92
  93                 wait_queue_head_t wait; /* to wait for buf servicing */
  94
  95                 /* OSS bits */
  96                 unsigned int mapped:1;
  97                 unsigned int ready:1;
  98                 unsigned int ossfragshift;
  99                 int ossmaxfrags;
 100                 unsigned int subdivision;
 101         } dmabuf;
 102
 103         struct semaphore sem;
 104 } ad1889_state_t;
 105
 106 typedef struct ad1889_dev {
 107         void __iomem *regbase;
 108         struct pci_dev *pci;
 109
 110         spinlock_t lock;
 111
 112         int dev_audio;
 113
 114         /* states; one per channel; right now only WAV and ADC */
 115         struct ad1889_state state[AD_MAX_STATES];
 116
 117         /* AC97 codec */
 118         struct ac97_codec *ac97_codec;
 119         u16 ac97_features;
 120
 121         /* debugging stuff */
 122         struct stats {
 123                 unsigned int wav_intrs, adc_intrs;
 124                 unsigned int blocks, underrun, error;
 125         } stats;
 126 } ad1889_dev_t;
 127
 128 typedef struct ad1889_reg {
 129         const char *name;
 130         int offset;
 131         int width;
 132 } ad1889_reg_t;
 133
 134 #endif