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#ifndef _SB_H_
#define _SB_H_
#include <go32.h>
#include <dpmi.h>
/*
* Offsets relative to base I/O address.
*/
#define SB_LEFT_FM_STATUS 0x00 /* Pro only */
#define SB_LEFT_FM_ADDRESS 0x00 /* Pro only */
#define SB_LEFT_FM_DATA 0x01 /* Pro only */
#define SB_RIGHT_FM_STATUS 0x02 /* Pro only */
#define SB_RIGHT_FM_ADDRESS 0x02 /* Pro only */
#define SB_RIGHT_FM_DATA 0x03 /* Pro only */
#define SB_MIXER_ADDRESS 0x04 /* Pro only */
#define SB_MIXER_DATA 0x05 /* Pro only */
#define SB_DSP_RESET 0x06
#define SB_FM_STATUS 0x08
#define SB_FM_ADDRESS 0x08
#define SB_FM_DATA 0x09
#define SB_DSP_READ_DATA 0x0A
#define SB_DSP_WRITE_DATA 0x0C
#define SB_DSP_WRITE_STATUS 0x0C
#define SB_DSP_DATA_AVAIL 0x0E
#define SB_CD_ROM_DATA 0x10 /* Pro only */
#define SB_CD_ROM_STATUS 0x11 /* Pro only */
#define SB_CD_ROM_RESET 0x12 /* Pro only */
#define SB_CD_ROM_ENABLE 0x13 /* Pro only */
#define SB_ADLIB_FM_STATUS 0x388
#define SB_ADLIB_FM_ADDRESS 0x388
#define SB_ADLIB_FM_DATA 0x389
/* Defines for 8237 DMA Controller IO addresses */
#define SB_DMA 0
#define SB_CH0_BASE (SB_DMA+0)
#define SB_CH0_COUNT (SB_DMA+1)
#define SB_CH1_BASE (SB_DMA+2)
#define SB_CH1_COUNT (SB_DMA+3)
#define SB_CH2_BASE (SB_DMA+4)
#define SB_CH2_COUNT (SB_DMA+5)
#define SB_CH3_BASE (SB_DMA+6)
#define SB_CH3_COUNT (SB_DMA+7)
#define SB_DMA_STATUS (SB_DMA+8)
#define SB_DMA_CMD (SB_DMA+8)
#define SB_DMA_REQUEST (SB_DMA+9)
#define SB_DMA_MASK (SB_DMA+10)
#define SB_DMA_MODE (SB_DMA+11)
#define SB_DMA_FF (SB_DMA+12)
#define SB_DMA_TMP (SB_DMA+13)
#define SB_DMA_CLEAR (SB_DMA+13)
#define SB_DMA_CLRMSK (SB_DMA+14)
#define SB_DMA_WRMSK (SB_DMA+15)
#define SB_DMAPAGE 0x80
/* Types of Soundblaster Cards */
#define SB_TYPE_15 1
#define SB_TYPE_PRO 2
#define SB_TYPE_20 3
/* DSP Commands */
#define SB_DIRECT_8_BIT_DAC 0x10
#define SB_DMA_8_BIT_DAC 0x14
#define SB_DMA_2_BIT_DAC 0x16
#define SB_DMA_2_BIT_REF_DAC 0x17
#define SB_DIRECT_ADC 0x20
#define SB_DMA_ADC 0x24
#define SB_MIDI_READ_POLL 0x30
#define SB_MIDI_READ_IRQ 0x31
#define SB_MIDI_WRITE_POLL 0x38
#define SB_TIME_CONSTANT 0x40
#define SB_DMA_4_BIT_DAC 0x74
#define SB_DMA_4_BIT_REF_DAC 0x75
#define SB_DMA_26_BIT_DAC 0x76
#define SB_DMA_26_BIT_REF_DAC 0x77
#define SB_HALT_DMA 0xD0
#define SB_CONTINUE_DMA 0xD4
#define SB_SPEAKER_ON 0xD1
#define SB_SPEAKER_OFF 0xD3
#define SB_DSP_ID 0xE0
#define SB_DSP_VER 0xE1
#define SB_MDAC1 0x61
#define SB_MDAC2 0x62
#define SB_MDAC3 0x63
#define SB_MDAC4 0x64
#define SB_MDAC5 0x65
#define SB_MDAC6 0x66
#define SB_MDAC7 0x67
#define SB_SET_BLOCKSIZE 0x48
#define SB_HIGH_DMA_8_BIT_DAC 0x91
#define SB_HIGH_DMA_8_BIT_ADC 0x99
/* Card parameters */
extern unsigned int sb_ioaddr;
extern unsigned int sb_irq;
extern unsigned int sb_dmachan;
extern unsigned int sb_type;
#define sb_writedac(x) { \
while(inportb(sb_ioaddr + SB_DSP_WRITE_STATUS) & 0x80); \
outportb(sb_ioaddr + SB_DSP_WRITE_DATA, (x)); \
}
#define sb_writemixer(x, y) { \
outportb(sb_ioaddr + SB_MIXER_ADDRESS, (x)); \
outportb(sb_ioaddr + SB_MIXER_DATA, (y)); \
}
void sb_intr_rec(_go32_dpmi_registers *reg);
void sb_empty_buffer(register unsigned n);
void sb_rec_buffer(register unsigned n);
unsigned long sb_rec(unsigned char *data, unsigned long length);
void sb_intr_play(_go32_dpmi_registers *reg);
void sb_fill_buffer(register unsigned n);
void sb_play_buffer(register unsigned n);
void sb_play(unsigned char *data, unsigned long length);
int sb_set_sample_rate(unsigned int rate);
void sb_voice(int state);
void sb_getparams();
int sb_initcard();
int sb_init_buffers();
int sb_init();
int sb_read_dac(int Base);
void sb_install_interrupts(void (*sb_intr)(_go32_dpmi_registers *));
void sb_install_rm_interrupt(void (*sb_intr)(_go32_dpmi_registers *));
void sb_cleanup_rm_interrupt();
void sb_install_pm_interrupt(void (*sb_intr)(_go32_dpmi_registers *));
void sb_cleanup_pm_interrupt();
void sb_cleanup_ints();
int sb_cleanup();
void SoundPlay(int Rate, char *data, unsigned long length);
unsigned long SoundRec(int Rate, char *data, unsigned long length);
int sb_read_counter(void);
void sb_reset(void);
void kbclear(void);
#endif
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