/*************************************************************************** * NAME: GF1HWARE.H ** COPYRIGHT: ** "Copyright (c) 1992, by FORTE ** ** "This software is furnished under a license and may be used, ** copied, or disclosed only in accordance with the terms of such ** license and with the inclusion of the above copyright notice. ** This software or any other copies thereof may not be provided or ** otherwise made available to any other person. No title to and ** ownership of the software is hereby transfered." **************************************************************************** * CREATION DATE: 07/22/92 *--------------------------------------------------------------------------* * VERSION DATE NAME DESCRIPTION *> 1.0 07/22/92 Original ***************************************************************************/ /* Special macros for Least-most sig. bytes */ #define MAKE_MSW(x) ((long)((long)(x)) << 16) #define LSW(x) ((unsigned int)(x)) #define MSW(x) ((unsigned int)(((long)x)>>16)) #define MSB(x) (unsigned char)((unsigned int)(x)>>8) #define LSB(x) ((unsigned char)(x)) /* Make GF1 address for direct chip i/o. */ #define ADDR_HIGH(x) ((unsigned int)((unsigned int)((x>>7L)&0x1fffL))) #define ADDR_LOW(x) ((unsigned int)((unsigned int)((x&0x7fL)<<9L))) #define JOYSTICK_TIMER 0x201 /* 201 */ #define JOYSTICK_DATA 0x201 /* 201 */ #define GF1_MIDI_CTRL 0x100 /* 3X0 */ #define GF1_MIDI_DATA 0x101 /* 3X1 */ #define GF1_PAGE 0x102 /* 3X2 */ #define GF1_REG_SELECT 0x103 /* 3X3 */ #define GF1_DATA_LOW 0x104 /* 3X4 */ #define GF1_DATA_HI 0x105 /* 3X5 */ #define GF1_IRQ_STAT 0x006 /* 2X6 */ #define GF1_DRAM 0x107 /* 3X7 */ #define GF1_MIX_CTRL 0x000 /* 2X0 */ #define GF1_TIMER_CTRL 0x008 /* 2X8 */ #define GF1_TIMER_DATA 0x009 /* 2X9 */ #define GF1_IRQ_CTRL 0x00B /* 2XB */ /* The GF1 Hardware clock. */ #define CLOCK_RATE 9878400L /* Mixer control bits. */ #define ENABLE_LINE 0x01 #define ENABLE_DAC 0x02 #define ENABLE_MIC 0x04 /* interrupt controller 1 */ #define CNTRL_8259 0x21 #define OCR_8259 0x20 #define EOI 0x20 #define REARM3 0x2F3 #define REARM5 0x2F5 /* interrupt controller 2 */ #define CNTRL_M_8259 0x21 #define CNTRL_M2_8259 0xA1 #define OCR_2_8259 0xA0 #define DMA_CONTROL 0x41 #define SET_DMA_ADDRESS 0x42 #define SET_DRAM_LOW 0x43 #define SET_DRAM_HIGH 0x44 #define TIMER_CONTROL 0x45 #define TIMER1 0x46 #define TIMER2 0x47 #define SET_SAMPLE_RATE 0x48 #define SAMPLE_CONTROL 0x49 #define SET_JOYSTICK 0x4B #define MASTER_RESET 0x4C /* Voice register mapping. */ #define SET_CONTROL 0x00 #define SET_FREQUENCY 0x01 #define SET_START_HIGH 0x02 #define SET_START_LOW 0x03 #define SET_END_HIGH 0x04 #define SET_END_LOW 0x05 #define SET_VOLUME_RATE 0x06 #define SET_VOLUME_START 0x07 #define SET_VOLUME_END 0x08 #define SET_VOLUME 0x09 #define SET_ACC_HIGH 0x0a #define SET_ACC_LOW 0x0b #define SET_BALANCE 0x0c #define SET_VOLUME_CONTROL 0x0d #define SET_VOICES 0x0e #define GET_CONTROL 0x80 #define GET_FREQUENCY 0x81 #define GET_START_HIGH 0x82 #define GET_START_LOW 0x83 #define GET_END_HIGH 0x84 #define GET_END_LOW 0x85 #define GET_VOLUME_RATE 0x86 #define GET_VOLUME_START 0x87 #define GET_VOLUME_END 0x88 #define GET_VOLUME 0x89 #define GET_ACC_HIGH 0x8a #define GET_ACC_LOW 0x8b #define GET_BALANCE 0x8c #define GET_VOLUME_CONTROL 0x8d #define GET_VOICES 0x8e #define GET_IRQV 0x8f /******************************************************************** * * MIDI defines * *******************************************************************/ #define MIDI_RESET 0x03 #define MIDI_ENABLE_XMIT 0x20 #define MIDI_ENABLE_RCV 0x80 #define MIDI_RCV_FULL 0x01 #define MIDI_XMIT_EMPTY 0x02 #define MIDI_FRAME_ERR 0x10 #define MIDI_OVERRUN 0x20 #define MIDI_IRQ_PEND 0x80 /******************************************************************** * * JOYSTICK defines * *******************************************************************/ #define JOY_POSITION 0x0f #define JOY_BUTTONS 0xf0 /******************************************************************** * * GF1 irq/dma programmable latches * *******************************************************************/ /* GF1_IRQ_STATUS (port 3X6) */ #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 */ /* GF1_MIX_CTRL (port 2X0) */ #define ENABLE_LINE_IN 0x01 /* 0=enable */ #define ENABLE_OUTPUT 0x02 /* 0=enable */ #define ENABLE_MIC_IN 0x04 /* 1=enable */ #define ENABLE_GF1_IRQ 0x08 /* 1=enable */ #define GF122 0x10 /* ?? */ #define ENABLE_MIDI_LOOP 0x20 /* 1=enable loop back */ #define SELECT_GF1_REG 0x40 /* 0=irq latches */ /* 1=dma latches */ /******************************************************************** * * GF1 global registers ($41-$4C) * *******************************************************************/ /* DMA control register */ #define DMA_ENABLE 0x01 #define DMA_READ 0x02 /* 1=read,0=write */ #define DMA_WIDTH_16 0x04 /* 1=16 bit,0=8 bit (dma chan width)*/ #define DMA_RATE 0x18 /* 00=fast, 11=slow */ #define DMA_IRQ_ENABLE 0x20 /* 1=enable */ #define DMA_IRQ_PENDING 0x40 /* read */ #define DMA_DATA_16 0x40 /* write (data width) */ #define DMA_TWOS_COMP 0x80 /* 1=do twos comp */ /* These are the xfer rate bits ... */ #define DMA_R0 0x00 /* Fastest DMA xfer (~650khz) */ #define DMA_R1 0x08 /* fastest / 2 */ #define DMA_R2 0x10 /* fastest / 4 */ #define DMA_R3 0x18 /* Slowest DMA xfer (fastest / 8) */ /* SAMPLE control register */ #define ENABLE_ADC 0x01 #define ADC_MODE 0x02 /* 0=mono, 1=stereo */ #define ADC_DMA_WIDTH 0x04 /* 0=8 bit, 1=16 bit */ #define ADC_IRQ_ENABLE 0x20 /* 1=enable */ #define ADC_IRQ_PENDING 0x40 /* 1=irq pending */ #define ADC_TWOS_COMP 0x80 /* 1=do twos comp */ /* RESET control register */ #define GF1_MASTER_RESET 0x01 /* 0=hold in reset */ #define GF1_OUTPUT_ENABLE 0x02 /* enable output */ #define GF1_MASTER_IRQ 0x04 /* master IRQ enable */ /******************************************************************** * * GF1 voice specific registers ($00 - $0E and $80-$8f) * *******************************************************************/ /* ($0,$80) Voice control register */ #define VOICE_STOPPED 0x01 /* voice has stopped */ #define STOP_VOICE 0x02 /* stop voice */ #define VC_DATA_TYPE 0x04 /* 0=8 bit,1=16 bit */ #define VC_LOOP_ENABLE 0x08 /* 1=enable */ #define VC_BI_LOOP 0x10 /* 1=bi directional looping */ #define VC_WAVE_IRQ 0x20 /* 1=enable voice's wave irq */ #define VC_DIRECT 0x40 /* 0=increasing,1=decreasing */ #define VC_IRQ_PENDING 0x80 /* 1=wavetable irq pending */ /* ($1,$81) Frequency control */ /* Bit 0 - Unused */ /* Bits 1-9 - Fractional portion */ /* Bits 10-15 - Integer portion */ /* ($2,$82) Accumulator start address (high) */ /* Bits 0-11 - HIGH 12 bits of address */ /* Bits 12-15 - Unused */ /* ($3,$83) Accumulator start address (low) */ /* Bits 0-4 - Unused */ /* Bits 5-8 - Fractional portion */ /* Bits 9-15 - Low 7 bits of integer portion */ /* ($4,$84) Accumulator end address (high) */ /* Bits 0-11 - HIGH 12 bits of address */ /* Bits 12-15 - Unused */ /* ($5,$85) Accumulator end address (low) */ /* Bits 0-4 - Unused */ /* Bits 5-8 - Fractional portion */ /* Bits 9-15 - Low 7 bits of integer portion */ /* ($6,$86) Volume Envelope control register */ #define VL_RATE_MANTISSA 0x3f #define VL_RATE_RANGE 0xC0 /* ($7,$87) Volume envelope start */ #define VL_START_MANT 0x0F #define VL_START_EXP 0xF0 /* ($8,$88) Volume envelope end */ #define VL_END_MANT 0x0F #define VL_END_EXP 0xF0 /* ($9,$89) Current volume register */ /* Bits 0-3 are unused */ /* Bits 4-11 - Mantissa of current volume */ /* Bits 10-15 - Exponent of current volume */ /* ($A,$8A) Accumulator value (high) */ /* Bits 0-12 - HIGH 12 bits of current position (a19-a7) */ /* ($B,$8B) Accumulator value (low) */ /* Bits 0-8 - Fractional portion */ /* Bits 9-15 - Integer portion of low adress (a6-a0) */ /* ($C,$8C) Pan (balance) position */ /* Bits 0-3 - Balance position 0=full left, 0x0f=full right */ /* ($D,$8D) Volume control register */ #define VOLUME_STOPPED 0x01 /* volume has stopped */ #define STOP_VOLUME 0x02 /* stop volume */ #define VC_ROLLOVER 0x04 /* Roll PAST end & gen IRQ */ #define VL_LOOP_ENABLE 0x08 /* 1=enable */ #define VL_BI_LOOP 0x10 /* 1=bi directional looping */ #define VL_WAVE_IRQ 0x20 /* 1=enable voice's wave irq */ #define VL_DIRECT 0x40 /* 0=increasing,1=decreasing */ #define VL_IRQ_PENDING 0x80 /* 1=wavetable irq pending */ /* ($E,$8E) # of Active voices */ /* Bits 0-5 - # of active voices -1 */ /* ($F,$8F) - Sources of IRQs */ /* Bits 0-4 - interrupting voice number */ /* Bit 5 - Always a 1 */ #define VOICE_VOLUME_IRQ 0x40 /* individual voice irq bit */ #define VOICE_WAVE_IRQ 0x80 /* individual waveform irq bit */