44 lines
782 B
C
44 lines
782 B
C
#ifndef HW_I8257_H
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#define HW_I8257_H
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#define TYPE_I8257 "i8257"
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typedef struct I8257Regs {
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int now[2];
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uint16_t base[2];
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uint8_t mode;
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uint8_t page;
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uint8_t pageh;
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uint8_t dack;
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uint8_t eop;
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IsaDmaTransferHandler transfer_handler;
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void *opaque;
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} I8257Regs;
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typedef struct I8257State {
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/* <private> */
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ISADevice parent_obj;
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/* <public> */
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int32_t base;
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int32_t page_base;
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int32_t pageh_base;
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int32_t dshift;
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uint8_t status;
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uint8_t command;
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uint8_t mask;
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uint8_t flip_flop;
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I8257Regs regs[4];
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MemoryRegion channel_io;
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MemoryRegion cont_io;
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QEMUBH *dma_bh;
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bool dma_bh_scheduled;
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int running;
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PortioList portio_page;
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PortioList portio_pageh;
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} I8257State;
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#endif
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