drivers/sb16/sb16.h

   1 #ifndef SB16_H
   2 #define SB16_H
   3
   4 #include "../drivers.h"
   5 #include <sys/ioc_sound.h>
   6 #include <minix/sound.h>
   7
   8
   9 #define SB_TIMEOUT              32000   /* timeout count */
  10
  11 /* IRQ, base address and DMA channels */
  12 #define SB_IRQ          7
  13 #define SB_BASE_ADDR    0x220           /* 0x210, 0x220, 0x230, 0x240,
  14                                          * 0x250, 0x260, 0x280
  15                                          */
  16 #define SB_DMA_8        1               /* 0, 1, 3 */
  17 #define SB_DMA_16       5               /* 5, 6, 7 */
  18 #if _WORD_SIZE == 2
  19 #define DMA_SIZE        8192            /* Dma buffer MUST BE MULTIPLE OF 2 */
  20 #else
  21 #define DMA_SIZE        (64 * 1024)             /* Dma buffer MUST BE MULTIPLE OF 2 */
  22 #endif
  23
  24 /* Some defaults for the DSP */
  25 #define DEFAULT_SPEED           22050      /* Sample rate */
  26 #define DEFAULT_BITS            8          /* Nr. of bits */
  27 #define DEFAULT_SIGN            0          /* 0 = unsigned, 1 = signed */
  28 #define DEFAULT_STEREO          0          /* 0 = mono, 1 = stereo */
  29
  30 /* DMA port addresses */
  31 #define DMA8_ADDR       ((SB_DMA_8 & 3) << 1) + 0x00
  32 #define DMA8_COUNT      ((SB_DMA_8 & 3) << 1) + 0x01
  33 #define DMA8_MASK       0x0A
  34 #define DMA8_MODE       0x0B
  35 #define DMA8_CLEAR      0x0C
  36
  37
  38 /* If after this preprocessing stuff DMA8_PAGE is not defined
  39  * the 8-bit DMA channel specified is not valid
  40  */
  41 #if SB_DMA_8 == 0
  42 #  define DMA8_PAGE     0x87
  43 #else
  44 #  if SB_DMA_8 == 1
  45 #    define DMA8_PAGE   0x83
  46 #  else
  47 #    if SB_DMA_8 == 3
  48 #      define DMA8_PAGE 0x82
  49 #    endif
  50 #  endif
  51 #endif
  52
  53
  54 #define DMA16_ADDR      ((SB_DMA_16 & 3) << 2) + 0xC0
  55 #define DMA16_COUNT     ((SB_DMA_16 & 3) << 2) + 0xC2
  56 #define DMA16_MASK      0xD4
  57 #define DMA16_MODE      0xD6
  58 #define DMA16_CLEAR     0xD8
  59
  60
  61 /* If after this preprocessing stuff DMA16_PAGE is not defined
  62  * the 16-bit DMA channel specified is not valid
  63  */
  64 #if SB_DMA_16 == 5
  65 #  define DMA16_PAGE      0x8B
  66 #else
  67 #  if SB_DMA_16 == 6
  68 #    define DMA16_PAGE    0x89
  69 #  else
  70 #    if SB_DMA_16 == 7
  71 #      define DMA16_PAGE  0x8A
  72 #    endif
  73 #  endif
  74 #endif
  75
  76
  77 /* DMA modes */
  78 #define DMA16_AUTO_PLAY         0x58 + (SB_DMA_16 & 3)
  79 #define DMA16_AUTO_REC          0x54 + (SB_DMA_16 & 3)
  80 #define DMA8_AUTO_PLAY          0x58 + SB_DMA_8
  81 #define DMA8_AUTO_REC           0x54 + SB_DMA_8
  82
  83
  84 /* IO ports for soundblaster */
  85 #define DSP_RESET       0x6 + SB_BASE_ADDR
  86 #define DSP_READ        0xA + SB_BASE_ADDR
  87 #define DSP_WRITE       0xC + SB_BASE_ADDR
  88 #define DSP_COMMAND     0xC + SB_BASE_ADDR
  89 #define DSP_STATUS      0xC + SB_BASE_ADDR
  90 #define DSP_DATA_AVL    0xE + SB_BASE_ADDR
  91 #define DSP_DATA16_AVL  0xF + SB_BASE_ADDR
  92 #define MIXER_REG       0x4 + SB_BASE_ADDR
  93 #define MIXER_DATA      0x5 + SB_BASE_ADDR
  94 #define OPL3_LEFT       0x0 + SB_BASE_ADDR
  95 #define OPL3_RIGHT      0x2 + SB_BASE_ADDR
  96 #define OPL3_BOTH       0x8 + SB_BASE_ADDR
  97
  98
  99 /* DSP Commands */
 100 #define DSP_INPUT_RATE          0x42  /* set input sample rate */
 101 #define DSP_OUTPUT_RATE         0x41  /* set output sample rate */
 102 #define DSP_CMD_SPKON           0xD1  /* set speaker on */
 103 #define DSP_CMD_SPKOFF          0xD3  /* set speaker off */
 104 #define DSP_CMD_DMA8HALT        0xD0  /* halt DMA 8-bit operation */
 105 #define DSP_CMD_DMA8CONT        0xD4  /* continue DMA 8-bit operation */
 106 #define DSP_CMD_DMA16HALT       0xD5  /* halt DMA 16-bit operation */
 107 #define DSP_CMD_DMA16CONT       0xD6  /* continue DMA 16-bit operation */
 108 #define DSP_GET_VERSION         0xE1  /* get version number of DSP */
 109 #define DSP_CMD_8BITAUTO_IN     0xCE  /* 8 bit auto-initialized input */
 110 #define DSP_CMD_8BITAUTO_OUT    0xC6  /* 8 bit auto-initialized output */
 111 #define DSP_CMD_16BITAUTO_IN    0xBE  /* 16 bit auto-initialized input */
 112 #define DSP_CMD_16BITAUTO_OUT   0xB6  /* 16 bit auto-initialized output */
 113 #define DSP_CMD_IRQREQ8         0xF2  /* Interrupt request 8 bit        */
 114 #define DSP_CMD_IRQREQ16        0xF3  /* Interrupt request 16 bit        */
 115
 116
 117 /* DSP Modes */
 118 #define DSP_MODE_MONO_US        0x00  /* Mono unsigned */
 119 #define DSP_MODE_MONO_S         0x10  /* Mono signed */
 120 #define DSP_MODE_STEREO_US      0x20  /* Stereo unsigned */
 121 #define DSP_MODE_STEREO_S       0x30  /* Stereo signed */
 122
 123
 124 /* MIXER commands */
 125 #define MIXER_RESET             0x00  /* Reset */
 126 #define MIXER_DAC_LEVEL         0x04  /* Used for detection only */
 127 #define MIXER_MASTER_LEFT       0x30  /* Master volume left */
 128 #define MIXER_MASTER_RIGHT      0x31  /* Master volume right */
 129 #define MIXER_DAC_LEFT          0x32  /* Dac level left */
 130 #define MIXER_DAC_RIGHT         0x33  /* Dac level right */
 131 #define MIXER_FM_LEFT           0x34  /* Fm level left */
 132 #define MIXER_FM_RIGHT          0x35  /* Fm level right */
 133 #define MIXER_CD_LEFT           0x36  /* Cd audio level left */
 134 #define MIXER_CD_RIGHT          0x37  /* Cd audio level right */
 135 #define MIXER_LINE_LEFT         0x38  /* Line in level left */
 136 #define MIXER_LINE_RIGHT        0x39  /* Line in level right */
 137 #define MIXER_MIC_LEVEL         0x3A  /* Microphone level */
 138 #define MIXER_PC_LEVEL          0x3B  /* Pc speaker level */
 139 #define MIXER_OUTPUT_CTRL       0x3C  /* Output control */
 140 #define MIXER_IN_LEFT           0x3D  /* Input control left */
 141 #define MIXER_IN_RIGHT          0x3E  /* Input control right */
 142 #define MIXER_GAIN_IN_LEFT      0x3F  /* Input gain control left */
 143 #define MIXER_GAIN_IN_RIGHT     0x40  /* Input gain control right */
 144 #define MIXER_GAIN_OUT_LEFT     0x41  /* Output gain control left */
 145 #define MIXER_GAIN_OUT_RIGHT    0x42  /* Output gain control rigth */
 146 #define MIXER_AGC               0x43  /* Automatic gain control */
 147 #define MIXER_TREBLE_LEFT       0x44  /* Treble left */
 148 #define MIXER_TREBLE_RIGHT      0x45  /* Treble right */
 149 #define MIXER_BASS_LEFT         0x46  /* Bass left */
 150 #define MIXER_BASS_RIGHT        0x47  /* Bass right */
 151 #define MIXER_SET_IRQ           0x80  /* Set irq number */
 152 #define MIXER_SET_DMA           0x81  /* Set DMA channels */
 153 #define MIXER_IRQ_STATUS        0x82  /* Irq status */
 154
 155 /* Mixer constants */
 156 #define MIC                             0x01  /* Microphone */
 157 #define CD_RIGHT                0x02
 158 #define CD_LEFT                 0x04
 159 #define LINE_RIGHT              0x08
 160 #define LINE_LEFT               0x10
 161 #define FM_RIGHT                0x20
 162 #define FM_LEFT                 0x40
 163
 164 /* DSP constants */
 165 #define DMA_NR_OF_BUFFERS               2
 166 #define DSP_MAX_SPEED                   44100      /* Max sample speed in KHz */
 167 #define DSP_MIN_SPEED                   4000       /* Min sample speed in KHz */
 168 #define DSP_MAX_FRAGMENT_SIZE   DMA_SIZE /  DMA_NR_OF_BUFFERS /* Maximum fragment size */
 169 #define DSP_MIN_FRAGMENT_SIZE   1024       /* Minimum fragment size */
 170 #define DSP_NR_OF_BUFFERS               8
 171
 172
 173 /* Number of bytes you can DMA before hitting a 64K boundary: */
 174 #define dma_bytes_left(phys)    \
 175    ((unsigned) (sizeof(int) == 2 ? 0 : 0x10000) - (unsigned) ((phys) & 0xFFFF))
 176
 177
 178 _PROTOTYPE(int mixer_set, (int reg, int data));
 179 _PROTOTYPE( int sb16_inb, (int port) );
 180 _PROTOTYPE( void sb16_outb, (int port, int value) );
 181
 182
 183 #endif /* SB16_H */