116 lines
3.0 KiB
C
116 lines
3.0 KiB
C
/*
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* 86Box A hypervisor and IBM PC system emulator that specializes in
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* running old operating systems and software designed for IBM
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* PC systems and compatibles from 1981 through fairly recent
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* system designs based on the PCI bus.
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*
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* This file is part of the 86Box distribution.
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*
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* Super I/O chip detection code.
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*
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*
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*
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* Authors: Miran Grca, <mgrca8@gmail.com>
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*
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* Copyright 2016-2018 Miran Grca.
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*/
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#include <stdio.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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#include <wchar.h>
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#include <86box/86box.h>
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#include <86box/device.h>
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#include <86box/io.h>
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#include <86box/timer.h>
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#include <86box/fdd.h>
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#include <86box/fdc.h>
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#include <86box/sio.h>
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typedef struct {
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uint8_t regs[2];
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} sio_detect_t;
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static void
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sio_detect_write(uint16_t port, uint8_t val, void *priv)
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{
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sio_detect_t *dev = (sio_detect_t *) priv;
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pclog("sio_detect_write : port=%04x = %02X\n", port, val);
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dev->regs[port & 1] = val;
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return;
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}
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static uint8_t
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sio_detect_read(uint16_t port, void *priv)
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{
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sio_detect_t *dev = (sio_detect_t *) priv;
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pclog("sio_detect_read : port=%04x = %02X\n", port, dev->regs[port & 1]);
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return dev->regs[port & 1];
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}
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static void
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sio_detect_close(void *priv)
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{
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sio_detect_t *dev = (sio_detect_t *) priv;
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free(dev);
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}
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static void *
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sio_detect_init(const device_t *info)
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{
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sio_detect_t *dev = (sio_detect_t *) malloc(sizeof(sio_detect_t));
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memset(dev, 0, sizeof(sio_detect_t));
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device_add(&fdc_at_smc_device);
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io_sethandler(0x0022, 0x0006,
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sio_detect_read, NULL, NULL, sio_detect_write, NULL, NULL, dev);
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io_sethandler(0x002e, 0x0002,
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sio_detect_read, NULL, NULL, sio_detect_write, NULL, NULL, dev);
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io_sethandler(0x0044, 0x0004,
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sio_detect_read, NULL, NULL, sio_detect_write, NULL, NULL, dev);
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io_sethandler(0x004e, 0x0002,
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sio_detect_read, NULL, NULL, sio_detect_write, NULL, NULL, dev);
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io_sethandler(0x0108, 0x0002,
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sio_detect_read, NULL, NULL, sio_detect_write, NULL, NULL, dev);
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io_sethandler(0x0250, 0x0003,
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sio_detect_read, NULL, NULL, sio_detect_write, NULL, NULL, dev);
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io_sethandler(0x026e, 0x0002,
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sio_detect_read, NULL, NULL, sio_detect_write, NULL, NULL, dev);
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io_sethandler(0x0279, 0x0001,
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sio_detect_read, NULL, NULL, sio_detect_write, NULL, NULL, dev);
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io_sethandler(0x0370, 0x0002,
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sio_detect_read, NULL, NULL, sio_detect_write, NULL, NULL, dev);
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io_sethandler(0x0398, 0x0002,
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sio_detect_read, NULL, NULL, sio_detect_write, NULL, NULL, dev);
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io_sethandler(0x03e3, 0x0001,
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sio_detect_read, NULL, NULL, sio_detect_write, NULL, NULL, dev);
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io_sethandler(0x03f0, 0x0002,
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sio_detect_read, NULL, NULL, sio_detect_write, NULL, NULL, dev);
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io_sethandler(0x0a79, 0x0001,
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sio_detect_read, NULL, NULL, sio_detect_write, NULL, NULL, dev);
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return dev;
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}
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const device_t sio_detect_device = {
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"Super I/O Detection Helper",
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0,
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0,
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sio_detect_init, sio_detect_close, NULL,
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NULL, NULL, NULL,
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NULL
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};
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