drivers/audio/sb16/sb16.h

   1 #ifndef SB16_H
   2 #define SB16_H
   3
   4 #include <minix/sound.h>
   5 #include <minix/audio_fw.h>
   6
   7 #if DEBUG
   8 #define Dprint(args) printf args
   9 #else
  10 #define Dprint(args)
  11 #endif
  12
  13 #define AUDIO 0
  14 #define MIXER 1
  15
  16 #define SB_TIMEOUT              32000   /* timeout count */
  17
  18 /* IRQ, base address and DMA channels */
  19 #define SB_IRQ          7
  20 #define SB_BASE_ADDR    0x220           /* 0x210, 0x220, 0x230, 0x240,
  21                                          * 0x250, 0x260, 0x280
  22                                          */
  23 #define SB_DMA_8        1               /* 0, 1, 3 */
  24 #define SB_DMA_16       5               /* 5, 6, 7 */
  25
  26 /* Some defaults for the DSP */
  27 #define DEFAULT_SPEED           22050      /* Sample rate */
  28 #define DEFAULT_BITS            8          /* Nr. of bits */
  29 #define DEFAULT_SIGN            0          /* 0 = unsigned, 1 = signed */
  30 #define DEFAULT_STEREO          0          /* 0 = mono, 1 = stereo */
  31
  32 /* DMA port addresses */
  33 #define DMA8_ADDR       ((SB_DMA_8 & 3) << 1) + 0x00
  34 #define DMA8_COUNT      ((SB_DMA_8 & 3) << 1) + 0x01
  35 #define DMA8_MASK       0x0A
  36 #define DMA8_MODE       0x0B
  37 #define DMA8_CLEAR      0x0C
  38
  39
  40 /* If after this preprocessing stuff DMA8_PAGE is not defined
  41  * the 8-bit DMA channel specified is not valid
  42  */
  43 #if SB_DMA_8 == 0
  44 #  define DMA8_PAGE     0x87
  45 #else
  46 #  if SB_DMA_8 == 1
  47 #    define DMA8_PAGE   0x83
  48 #  else
  49 #    if SB_DMA_8 == 3
  50 #      define DMA8_PAGE 0x82
  51 #    endif
  52 #  endif
  53 #endif
  54
  55
  56 #define DMA16_ADDR      ((SB_DMA_16 & 3) << 2) + 0xC0
  57 #define DMA16_COUNT     ((SB_DMA_16 & 3) << 2) + 0xC2
  58 #define DMA16_MASK      0xD4
  59 #define DMA16_MODE      0xD6
  60 #define DMA16_CLEAR     0xD8
  61
  62
  63 /* If after this preprocessing stuff DMA16_PAGE is not defined
  64  * the 16-bit DMA channel specified is not valid
  65  */
  66 #if SB_DMA_16 == 5
  67 #  define DMA16_PAGE      0x8B
  68 #else
  69 #  if SB_DMA_16 == 6
  70 #    define DMA16_PAGE    0x89
  71 #  else
  72 #    if SB_DMA_16 == 7
  73 #      define DMA16_PAGE  0x8A
  74 #    endif
  75 #  endif
  76 #endif
  77
  78
  79 /* DMA modes */
  80 #define DMA16_AUTO_PLAY         0x58 + (SB_DMA_16 & 3)
  81 #define DMA16_AUTO_REC          0x54 + (SB_DMA_16 & 3)
  82 #define DMA8_AUTO_PLAY          0x58 + SB_DMA_8
  83 #define DMA8_AUTO_REC           0x54 + SB_DMA_8
  84
  85
  86 /* IO ports for soundblaster */
  87 #define DSP_RESET       0x6 + SB_BASE_ADDR
  88 #define DSP_READ        0xA + SB_BASE_ADDR
  89 #define DSP_WRITE       0xC + SB_BASE_ADDR
  90 #define DSP_COMMAND     0xC + SB_BASE_ADDR
  91 #define DSP_STATUS      0xC + SB_BASE_ADDR
  92 #define DSP_DATA_AVL    0xE + SB_BASE_ADDR
  93 #define DSP_DATA16_AVL  0xF + SB_BASE_ADDR
  94 #define MIXER_REG       0x4 + SB_BASE_ADDR
  95 #define MIXER_DATA      0x5 + SB_BASE_ADDR
  96 #define OPL3_LEFT       0x0 + SB_BASE_ADDR
  97 #define OPL3_RIGHT      0x2 + SB_BASE_ADDR
  98 #define OPL3_BOTH       0x8 + SB_BASE_ADDR
  99
 100
 101 /* DSP Commands */
 102 #define DSP_INPUT_RATE          0x42  /* set input sample rate */
 103 #define DSP_OUTPUT_RATE         0x41  /* set output sample rate */
 104 #define DSP_CMD_SPKON           0xD1  /* set speaker on */
 105 #define DSP_CMD_SPKOFF          0xD3  /* set speaker off */
 106 #define DSP_CMD_DMA8HALT        0xD0  /* halt DMA 8-bit operation */
 107 #define DSP_CMD_DMA8CONT        0xD4  /* continue DMA 8-bit operation */
 108 #define DSP_CMD_DMA16HALT       0xD5  /* halt DMA 16-bit operation */
 109 #define DSP_CMD_DMA16CONT       0xD6  /* continue DMA 16-bit operation */
 110 #define DSP_GET_VERSION         0xE1  /* get version number of DSP */
 111 #define DSP_CMD_8BITAUTO_IN     0xCE  /* 8 bit auto-initialized input */
 112 #define DSP_CMD_8BITAUTO_OUT    0xC6  /* 8 bit auto-initialized output */
 113 #define DSP_CMD_16BITAUTO_IN    0xBE  /* 16 bit auto-initialized input */
 114 #define DSP_CMD_16BITAUTO_OUT   0xB6  /* 16 bit auto-initialized output */
 115 #define DSP_CMD_IRQREQ8         0xF2  /* Interrupt request 8 bit        */
 116 #define DSP_CMD_IRQREQ16        0xF3  /* Interrupt request 16 bit        */
 117
 118
 119 /* DSP Modes */
 120 #define DSP_MODE_MONO_US        0x00  /* Mono unsigned */
 121 #define DSP_MODE_MONO_S         0x10  /* Mono signed */
 122 #define DSP_MODE_STEREO_US      0x20  /* Stereo unsigned */
 123 #define DSP_MODE_STEREO_S       0x30  /* Stereo signed */
 124
 125
 126 /* MIXER commands */
 127 #define MIXER_RESET             0x00  /* Reset */
 128 #define MIXER_DAC_LEVEL         0x04  /* Used for detection only */
 129 #define MIXER_MASTER_LEFT       0x30  /* Master volume left */
 130 #define MIXER_MASTER_RIGHT      0x31  /* Master volume right */
 131 #define MIXER_DAC_LEFT          0x32  /* Dac level left */
 132 #define MIXER_DAC_RIGHT         0x33  /* Dac level right */
 133 #define MIXER_FM_LEFT           0x34  /* Fm level left */
 134 #define MIXER_FM_RIGHT          0x35  /* Fm level right */
 135 #define MIXER_CD_LEFT           0x36  /* Cd audio level left */
 136 #define MIXER_CD_RIGHT          0x37  /* Cd audio level right */
 137 #define MIXER_LINE_LEFT         0x38  /* Line in level left */
 138 #define MIXER_LINE_RIGHT        0x39  /* Line in level right */
 139 #define MIXER_MIC_LEVEL         0x3A  /* Microphone level */
 140 #define MIXER_PC_LEVEL          0x3B  /* Pc speaker level */
 141 #define MIXER_OUTPUT_CTRL       0x3C  /* Output control */
 142 #define MIXER_IN_LEFT           0x3D  /* Input control left */
 143 #define MIXER_IN_RIGHT          0x3E  /* Input control right */
 144 #define MIXER_GAIN_IN_LEFT      0x3F  /* Input gain control left */
 145 #define MIXER_GAIN_IN_RIGHT     0x40  /* Input gain control right */
 146 #define MIXER_GAIN_OUT_LEFT     0x41  /* Output gain control left */
 147 #define MIXER_GAIN_OUT_RIGHT    0x42  /* Output gain control rigth */
 148 #define MIXER_AGC               0x43  /* Automatic gain control */
 149 #define MIXER_TREBLE_LEFT       0x44  /* Treble left */
 150 #define MIXER_TREBLE_RIGHT      0x45  /* Treble right */
 151 #define MIXER_BASS_LEFT         0x46  /* Bass left */
 152 #define MIXER_BASS_RIGHT        0x47  /* Bass right */
 153 #define MIXER_SET_IRQ           0x80  /* Set irq number */
 154 #define MIXER_SET_DMA           0x81  /* Set DMA channels */
 155 #define MIXER_IRQ_STATUS        0x82  /* Irq status */
 156
 157 /* Mixer constants */
 158 #define MIC                             0x01  /* Microphone */
 159 #define CD_RIGHT                0x02
 160 #define CD_LEFT                 0x04
 161 #define LINE_RIGHT              0x08
 162 #define LINE_LEFT               0x10
 163 #define FM_RIGHT                0x20
 164 #define FM_LEFT                 0x40
 165
 166 /* DSP constants */
 167 #define DSP_MAX_SPEED                   44100      /* Max sample speed in KHz */
 168 #define DSP_MIN_SPEED                   4000       /* Min sample speed in KHz */
 169
 170
 171 /* Number of bytes you can DMA before hitting a 64K boundary: */
 172 #define dma_bytes_left(phys)    \
 173    ((unsigned) (sizeof(int) == 2 ? 0 : 0x10000) - (unsigned) ((phys) & 0xFFFF))
 174
 175 int dsp_command(int value);
 176 int sb16_inb(int port);
 177 void sb16_outb(int port, int value);
 178
 179 #endif /* SB16_H */