Current WIP code.
This commit is contained in:
OBattler
@@ -11,7 +11,7 @@
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* Winbond W83877F Super I/O Chip
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* Used by the Award 430HX
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*
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* Version: @(#)sio_w83877f.c 1.0.16 2020/01/11
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* Version: @(#)sio_w83877f.c 1.0.17 2020/01/25
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*
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* Author: Miran Grca, <mgrca8@gmail.com>
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* Copyright 2016-2020 Miran Grca.
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@@ -23,15 +23,15 @@
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#include <wchar.h>
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#include "86box.h"
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#include "device.h"
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#include "io.h"
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#include "86box_io.h"
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#include "timer.h"
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#include "pci.h"
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#include "mem.h"
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#include "rom.h"
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#include "lpt.h"
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#include "serial.h"
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#include "floppy/fdd.h"
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#include "floppy/fdc.h"
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#include "fdd.h"
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#include "fdc.h"
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#include "sio.h"
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@@ -148,18 +148,65 @@ make_port(w83877f_t *dev, uint8_t reg)
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}
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static void
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w83877f_fdc_handler(w83877f_t *dev)
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{
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fdc_remove(dev->fdc);
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if (!(dev->regs[6] & 0x08) && (dev->regs[0x20] & 0xc0))
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fdc_set_base(dev->fdc, 0x03f0);
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}
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static void
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w83877f_lpt_handler(w83877f_t *dev)
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{
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uint8_t lpt_irq;
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uint8_t lpt_irqs[8] = { 0, 7, 9, 10, 11, 14, 15, 5 };
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lpt1_remove();
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if (!(dev->regs[4] & 0x80) && (dev->regs[0x23] & 0xc0))
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lpt1_init(make_port(dev, 0x23));
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lpt_irq = 0xff;
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lpt_irq = lpt_irqs[ECPIRQ];
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if (lpt_irq == 0)
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lpt_irq = PRTIQS;
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lpt1_irq(lpt_irq);
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}
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static void
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w83877f_serial_handler(w83877f_t *dev, int uart)
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{
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int reg_mask = uart ? 0x10 : 0x20;
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int reg_id = uart ? 0x24 : 0x25;
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int reg_id = uart ? 0x25 : 0x24;
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int irq_mask = uart ? 0x0f : 0xf0;
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int irq_shift = uart ? 4 : 0;
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int irq_shift = uart ? 0 : 4;
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double clock_src = 24000000.0 / 13.0;
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if ((dev->regs[4] & reg_mask) || !(dev->regs[reg_id] & 0xc0))
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serial_remove(dev->uart[uart]);
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else
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serial_remove(dev->uart[uart]);
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if (!(dev->regs[4] & reg_mask) && (dev->regs[reg_id] & 0xc0))
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serial_setup(dev->uart[uart], make_port(dev, reg_id), (dev->regs[0x28] & irq_mask) >> irq_shift);
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switch (!!(dev->regs[0x19] & (0x02 >> uart))) {
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case 0:
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switch (!!(dev->regs[0x03] & (0x02 >> uart))) {
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case 0:
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clock_src = 24000000.0 / 13.0;
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break;
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case 1:
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clock_src = 24000000.0 / 12.0;
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break;
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}
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break;
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case 1:
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clock_src = 14769000.0;
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break;
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}
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serial_set_clock_src(dev->uart[uart], clock_src);
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}
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@@ -169,7 +216,6 @@ w83877f_write(uint16_t port, uint8_t val, void *priv)
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w83877f_t *dev = (w83877f_t *) priv;
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uint8_t valxor = 0;
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uint8_t max = 0x2A;
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uint8_t lpt_irq;
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if (port == 0x250) {
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if (val == dev->key)
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@@ -207,6 +253,7 @@ w83877f_write(uint16_t port, uint8_t val, void *priv)
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return;
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} else if ((port == 0x252) || (port == 0x3f1)) {
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if (dev->locked) {
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pclog("dev->locked\n");
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if (dev->rw_locked)
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return;
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if ((dev->cur_reg >= 0x26) && (dev->cur_reg <= 0x27))
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@@ -223,33 +270,30 @@ w83877f_write(uint16_t port, uint8_t val, void *priv)
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switch (dev->cur_reg) {
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case 0:
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if (valxor & 0x0c) {
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lpt1_remove();
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if (!(dev->regs[4] & 0x80))
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lpt1_init(make_port(dev, 0x23));
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}
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if (valxor & 0x0c)
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w83877f_lpt_handler(dev);
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break;
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case 1:
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if (valxor & 0x80)
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fdc_set_swap(dev->fdc, (dev->regs[1] & 0x80) ? 1 : 0);
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break;
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case 3:
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if (valxor & 0x02)
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w83877f_serial_handler(dev, 0);
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if (valxor & 0x01)
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w83877f_serial_handler(dev, 1);
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break;
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case 4:
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if (valxor & 0x10)
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w83877f_serial_handler(dev, 1);
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if (valxor & 0x20)
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w83877f_serial_handler(dev, 0);
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if (valxor & 0x80) {
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lpt1_remove();
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if (!(dev->regs[4] & 0x80))
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lpt1_init(make_port(dev, 0x23));
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}
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if (valxor & 0x80)
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w83877f_lpt_handler(dev);
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break;
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case 6:
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if (valxor & 0x08) {
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fdc_remove(dev->fdc);
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if (!(dev->regs[6] & 0x08))
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fdc_set_base(dev->fdc, 0x03f0);
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}
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if (valxor & 0x08)
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w83877f_fdc_handler(dev);
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break;
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case 7:
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if (valxor & 0x03)
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@@ -274,11 +318,8 @@ w83877f_write(uint16_t port, uint8_t val, void *priv)
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fdc_update_enh_mode(dev->fdc, EN3MODE ? 1 : 0);
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if (valxor & 0x40)
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dev->rw_locked = (val & 0x40) ? 1 : 0;
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if (valxor & 0x80) {
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lpt1_remove();
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if (!(dev->regs[4] & 0x80))
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lpt1_init(make_port(dev, 0x23));
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}
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if (valxor & 0x80)
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w83877f_lpt_handler(dev);
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break;
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case 0xB:
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if (valxor & 1)
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@@ -294,19 +335,19 @@ w83877f_write(uint16_t port, uint8_t val, void *priv)
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if (valxor & 1)
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w83877f_remap(dev);
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break;
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case 0x19:
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if (valxor & 0x02)
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w83877f_serial_handler(dev, 0);
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if (valxor & 0x01)
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w83877f_serial_handler(dev, 1);
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break;
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case 0x20:
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if (valxor) {
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fdc_remove(dev->fdc);
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if (!(dev->regs[4] & 0x80))
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fdc_set_base(dev->fdc, make_port(dev, 0x20));
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}
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if (valxor)
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w83877f_fdc_handler(dev);
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break;
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case 0x23:
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if (valxor) {
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lpt1_remove();
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if (!(dev->regs[4] & 0x80))
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lpt1_init(make_port(dev, 0x23));
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}
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if (valxor)
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w83877f_lpt_handler(dev);
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break;
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case 0x24:
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if (valxor & 0xfe)
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@@ -317,27 +358,19 @@ w83877f_write(uint16_t port, uint8_t val, void *priv)
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w83877f_serial_handler(dev, 1);
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break;
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case 0x27:
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if (valxor & 0xef) {
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lpt_irq = 0xff;
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if (PRTIQS != 0x00)
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lpt_irq = ECPIRQ;
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lpt1_irq(lpt_irq);
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}
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if (valxor & 0xef)
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w83877f_lpt_handler(dev);
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break;
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case 0x28:
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if (valxor & 0xf) {
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if ((dev->regs[0x28] & 0x0f) == 0)
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dev->regs[0x28] |= 0x03;
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if (!(dev->regs[2] & 0x10))
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serial_setup(dev->uart[1], make_port(dev, 0x25), dev->regs[0x28] & 0x0f);
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w83877f_serial_handler(dev, 1);
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}
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if (valxor & 0xf0) {
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if ((dev->regs[0x28] & 0xf0) == 0)
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dev->regs[0x28] |= 0x40;
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if (!(dev->regs[4] & 0x20))
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serial_setup(dev->uart[0], make_port(dev, 0x24), (dev->regs[0x28] & 0xf0) >> 4);
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w83877f_serial_handler(dev, 0);
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}
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break;
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}
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@@ -355,7 +388,7 @@ w83877f_read(uint16_t port, void *priv)
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ret = dev->cur_reg;
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else if ((port == 0x3f1) || (port == 0x252)) {
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if (dev->cur_reg == 7)
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ret = (fdc_get_rwc(dev->fdc, 0) | (fdc_get_rwc(dev->fdc, 1) << 2));
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ret = (fdc_get_rwc(dev->fdc, 0) | (fdc_get_rwc(dev->fdc, 1) << 2) | (fdc_get_rwc(dev->fdc, 2) << 4) | (fdc_get_rwc(dev->fdc, 3) << 6));
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else if ((dev->cur_reg >= 0x18) || !dev->rw_locked)
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ret = dev->regs[dev->cur_reg];
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}
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@@ -368,9 +401,6 @@ w83877f_read(uint16_t port, void *priv)
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static void
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w83877f_reset(w83877f_t *dev)
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{
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lpt1_remove();
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lpt1_init(0x378);
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fdc_reset(dev->fdc);
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memset(dev->regs, 0, 0x2A);
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@@ -389,12 +419,16 @@ w83877f_reset(w83877f_t *dev)
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dev->regs[0x24] = (0x3f8 >> 2) & 0xfe;
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dev->regs[0x25] = (0x2f8 >> 2) & 0xfe;
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dev->regs[0x26] = (2 << 4) | 4;
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dev->regs[0x27] = (6 << 4) | 7;
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dev->regs[0x27] = (2 << 4) | 5;
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dev->regs[0x28] = (4 << 4) | 3;
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dev->regs[0x29] = 0x62;
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serial_setup(dev->uart[0], SERIAL1_ADDR, SERIAL1_IRQ);
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serial_setup(dev->uart[1], SERIAL2_ADDR, SERIAL2_IRQ);
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w83877f_fdc_handler(dev);
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w83877f_lpt_handler(dev);
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w83877f_serial_handler(dev, 0);
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w83877f_serial_handler(dev, 1);
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dev->base_address = 0x3f0;
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dev->key = 0x89;
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@@ -463,3 +497,13 @@ const device_t w83877tf_device = {
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NULL, NULL, NULL,
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NULL
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};
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const device_t w83877tf_acorp_device = {
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"Winbond W83877TF Super I/O",
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0,
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0x0c05,
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w83877f_init, w83877f_close, NULL,
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NULL, NULL, NULL,
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NULL
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};
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