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