| 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 */
|
|---|
