#ifndef SB16_H #define SB16_H #include "../drivers.h" #include #include #define SB_TIMEOUT 32000 /* timeout count */ /* IRQ, base address and DMA channels */ #define SB_IRQ 7 #define SB_BASE_ADDR 0x220 /* 0x210, 0x220, 0x230, 0x240, * 0x250, 0x260, 0x280 */ #define SB_DMA_8 1 /* 0, 1, 3 */ #define SB_DMA_16 5 /* 5, 6, 7 */ #if _WORD_SIZE == 2 #define DMA_SIZE 8192 /* Dma buffer MUST BE MULTIPLE OF 2 */ #else #define DMA_SIZE (64 * 1024) /* Dma buffer MUST BE MULTIPLE OF 2 */ #endif /* Some defaults for the DSP */ #define DEFAULT_SPEED 22050 /* Sample rate */ #define DEFAULT_BITS 8 /* Nr. of bits */ #define DEFAULT_SIGN 0 /* 0 = unsigned, 1 = signed */ #define DEFAULT_STEREO 0 /* 0 = mono, 1 = stereo */ /* DMA port addresses */ #define DMA8_ADDR ((SB_DMA_8 & 3) << 1) + 0x00 #define DMA8_COUNT ((SB_DMA_8 & 3) << 1) + 0x01 #define DMA8_MASK 0x0A #define DMA8_MODE 0x0B #define DMA8_CLEAR 0x0C /* If after this preprocessing stuff DMA8_PAGE is not defined * the 8-bit DMA channel specified is not valid */ #if SB_DMA_8 == 0 # define DMA8_PAGE 0x87 #else # if SB_DMA_8 == 1 # define DMA8_PAGE 0x83 # else # if SB_DMA_8 == 3 # define DMA8_PAGE 0x82 # endif # endif #endif #define DMA16_ADDR ((SB_DMA_16 & 3) << 2) + 0xC0 #define DMA16_COUNT ((SB_DMA_16 & 3) << 2) + 0xC2 #define DMA16_MASK 0xD4 #define DMA16_MODE 0xD6 #define DMA16_CLEAR 0xD8 /* If after this preprocessing stuff DMA16_PAGE is not defined * the 16-bit DMA channel specified is not valid */ #if SB_DMA_16 == 5 # define DMA16_PAGE 0x8B #else # if SB_DMA_16 == 6 # define DMA16_PAGE 0x89 # else # if SB_DMA_16 == 7 # define DMA16_PAGE 0x8A # endif # endif #endif /* DMA modes */ #define DMA16_AUTO_PLAY 0x58 + (SB_DMA_16 & 3) #define DMA16_AUTO_REC 0x54 + (SB_DMA_16 & 3) #define DMA8_AUTO_PLAY 0x58 + SB_DMA_8 #define DMA8_AUTO_REC 0x54 + SB_DMA_8 /* IO ports for soundblaster */ #define DSP_RESET 0x6 + SB_BASE_ADDR #define DSP_READ 0xA + SB_BASE_ADDR #define DSP_WRITE 0xC + SB_BASE_ADDR #define DSP_COMMAND 0xC + SB_BASE_ADDR #define DSP_STATUS 0xC + SB_BASE_ADDR #define DSP_DATA_AVL 0xE + SB_BASE_ADDR #define DSP_DATA16_AVL 0xF + SB_BASE_ADDR #define MIXER_REG 0x4 + SB_BASE_ADDR #define MIXER_DATA 0x5 + SB_BASE_ADDR #define OPL3_LEFT 0x0 + SB_BASE_ADDR #define OPL3_RIGHT 0x2 + SB_BASE_ADDR #define OPL3_BOTH 0x8 + SB_BASE_ADDR /* DSP Commands */ #define DSP_INPUT_RATE 0x42 /* set input sample rate */ #define DSP_OUTPUT_RATE 0x41 /* set output sample rate */ #define DSP_CMD_SPKON 0xD1 /* set speaker on */ #define DSP_CMD_SPKOFF 0xD3 /* set speaker off */ #define DSP_CMD_DMA8HALT 0xD0 /* halt DMA 8-bit operation */ #define DSP_CMD_DMA8CONT 0xD4 /* continue DMA 8-bit operation */ #define DSP_CMD_DMA16HALT 0xD5 /* halt DMA 16-bit operation */ #define DSP_CMD_DMA16CONT 0xD6 /* continue DMA 16-bit operation */ #define DSP_GET_VERSION 0xE1 /* get version number of DSP */ #define DSP_CMD_8BITAUTO_IN 0xCE /* 8 bit auto-initialized input */ #define DSP_CMD_8BITAUTO_OUT 0xC6 /* 8 bit auto-initialized output */ #define DSP_CMD_16BITAUTO_IN 0xBE /* 16 bit auto-initialized input */ #define DSP_CMD_16BITAUTO_OUT 0xB6 /* 16 bit auto-initialized output */ #define DSP_CMD_IRQREQ8 0xF2 /* Interrupt request 8 bit */ #define DSP_CMD_IRQREQ16 0xF3 /* Interrupt request 16 bit */ /* DSP Modes */ #define DSP_MODE_MONO_US 0x00 /* Mono unsigned */ #define DSP_MODE_MONO_S 0x10 /* Mono signed */ #define DSP_MODE_STEREO_US 0x20 /* Stereo unsigned */ #define DSP_MODE_STEREO_S 0x30 /* Stereo signed */ /* MIXER commands */ #define MIXER_RESET 0x00 /* Reset */ #define MIXER_DAC_LEVEL 0x04 /* Used for detection only */ #define MIXER_MASTER_LEFT 0x30 /* Master volume left */ #define MIXER_MASTER_RIGHT 0x31 /* Master volume right */ #define MIXER_DAC_LEFT 0x32 /* Dac level left */ #define MIXER_DAC_RIGHT 0x33 /* Dac level right */ #define MIXER_FM_LEFT 0x34 /* Fm level left */ #define MIXER_FM_RIGHT 0x35 /* Fm level right */ #define MIXER_CD_LEFT 0x36 /* Cd audio level left */ #define MIXER_CD_RIGHT 0x37 /* Cd audio level right */ #define MIXER_LINE_LEFT 0x38 /* Line in level left */ #define MIXER_LINE_RIGHT 0x39 /* Line in level right */ #define MIXER_MIC_LEVEL 0x3A /* Microphone level */ #define MIXER_PC_LEVEL 0x3B /* Pc speaker level */ #define MIXER_OUTPUT_CTRL 0x3C /* Output control */ #define MIXER_IN_LEFT 0x3D /* Input control left */ #define MIXER_IN_RIGHT 0x3E /* Input control right */ #define MIXER_GAIN_IN_LEFT 0x3F /* Input gain control left */ #define MIXER_GAIN_IN_RIGHT 0x40 /* Input gain control right */ #define MIXER_GAIN_OUT_LEFT 0x41 /* Output gain control left */ #define MIXER_GAIN_OUT_RIGHT 0x42 /* Output gain control rigth */ #define MIXER_AGC 0x43 /* Automatic gain control */ #define MIXER_TREBLE_LEFT 0x44 /* Treble left */ #define MIXER_TREBLE_RIGHT 0x45 /* Treble right */ #define MIXER_BASS_LEFT 0x46 /* Bass left */ #define MIXER_BASS_RIGHT 0x47 /* Bass right */ #define MIXER_SET_IRQ 0x80 /* Set irq number */ #define MIXER_SET_DMA 0x81 /* Set DMA channels */ #define MIXER_IRQ_STATUS 0x82 /* Irq status */ /* Mixer constants */ #define MIC 0x01 /* Microphone */ #define CD_RIGHT 0x02 #define CD_LEFT 0x04 #define LINE_RIGHT 0x08 #define LINE_LEFT 0x10 #define FM_RIGHT 0x20 #define FM_LEFT 0x40 /* DSP constants */ #define DMA_NR_OF_BUFFERS 2 #define DSP_MAX_SPEED 44100 /* Max sample speed in KHz */ #define DSP_MIN_SPEED 4000 /* Min sample speed in KHz */ #define DSP_MAX_FRAGMENT_SIZE DMA_SIZE / DMA_NR_OF_BUFFERS /* Maximum fragment size */ #define DSP_MIN_FRAGMENT_SIZE 1024 /* Minimum fragment size */ #define DSP_NR_OF_BUFFERS 8 /* Number of bytes you can DMA before hitting a 64K boundary: */ #define dma_bytes_left(phys) \ ((unsigned) (sizeof(int) == 2 ? 0 : 0x10000) - (unsigned) ((phys) & 0xFFFF)) _PROTOTYPE(int mixer_set, (int reg, int data)); _PROTOTYPE( int sb16_inb, (int port) ); _PROTOTYPE( void sb16_outb, (int port, int value) ); #endif /* SB16_H */