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/*

 * I/O addresses

 */

#define u_Base                  (gus_base + 0x000)

#define u_Mixer                 u_Base

#define u_Status                (gus_base + 0x006)

#define u_TimerControl          (gus_base + 0x008)

#define u_TimerData             (gus_base + 0x009)

#define u_IRQDMAControl         (gus_base + 0x00b)

#define u_MidiControl           (gus_base + 0x100)

#define         MIDI_RESET              0x03

#define         MIDI_ENABLE_XMIT        0x20

#define         MIDI_ENABLE_RCV         0x80

#define u_MidiStatus            u_MidiControl

#define         MIDI_RCV_FULL           0x01

#define         MIDI_XMIT_EMPTY         0x02

#define         MIDI_FRAME_ERR          0x10

#define         MIDI_OVERRUN            0x20

#define         MIDI_IRQ_PEND           0x80

#define u_MidiData              (gus_base + 0x101)

#define u_Voice                 (gus_base + 0x102)

#define u_Command               (gus_base + 0x103)

#define u_DataLo                (gus_base + 0x104)

#define u_DataHi                (gus_base + 0x105)

#define u_MixData               (gus_base + 0x106)   /* Rev. 3.7+ mixing */

#define u_MixSelect             (gus_base + 0x506)   /* registers.       */

#define u_IrqStatus             u_Status

#       define MIDI_TX_IRQ              0x01    /* pending MIDI xmit IRQ */

#       define MIDI_RX_IRQ              0x02    /* pending MIDI recv IRQ */

#       define GF1_TIMER1_IRQ           0x04    /* general purpose timer */

#       define GF1_TIMER2_IRQ           0x08    /* general purpose timer */

#       define WAVETABLE_IRQ            0x20    /* pending wavetable IRQ */

#       define ENVELOPE_IRQ             0x40    /* pending volume envelope IRQ */

#       define DMA_TC_IRQ               0x80    /* pending dma tc IRQ */

#define ICS2101         1

#       define ICS_MIXDEVS      6

#       define DEV_MIC          0

#       define DEV_LINE         1

#       define DEV_CD           2

#       define DEV_GF1          3

#       define DEV_UNUSED       4

#       define DEV_VOL          5

#       define CHN_LEFT         0

#       define CHN_RIGHT        1

#define CS4231          2

#define u_DRAMIO                (gus_base + 0x107)