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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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