📄 sb.h
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#define DSP_RESET (sbc_base + 0x6)#define DSP_READ (sbc_base + 0xA)#define DSP_WRITE (sbc_base + 0xC)#define DSP_COMMAND (sbc_base + 0xC)#define DSP_STATUS (sbc_base + 0xC)#define DSP_DATA_AVAIL (sbc_base + 0xE)#define DSP_DATA_AVL16 (sbc_base + 0xF)#define MIXER_ADDR (sbc_base + 0x4)#define MIXER_DATA (sbc_base + 0x5)#define OPL3_LEFT (sbc_base + 0x0)#define OPL3_RIGHT (sbc_base + 0x2)#define OPL3_BOTH (sbc_base + 0x8)/* DSP Commands */#define DSP_CMD_SPKON 0xD1#define DSP_CMD_SPKOFF 0xD3#define DSP_CMD_DMAON 0xD0#define DSP_CMD_DMAOFF 0xD4#define IMODE_NONE 0#define IMODE_OUTPUT 1#define IMODE_INPUT 2#define IMODE_INIT 3#define IMODE_MIDI 4#define NORMAL_MIDI 0#define UART_MIDI 1
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