80486DX2-66/86Box-fork
1
0
Fork 0
Code Issues Pull Requests Activity

Implemented power down register on the VT82C686 Super I/O chip.

Browse Source
This commit is contained in:
OBattler
2022-10-29 19:10:10 +02:00
parent d89a2906a1
commit e950ebae17
1 changed files with 8 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

19
src/sio/sio_vt82c686.c
View File

@@ -57,7 +57,7 @@ vt82c686_fdc_handler(vt82c686_t *dev)
fdc_remove(dev->fdc);
if (dev->regs[0x02] & 0x10)
if ((dev->regs[0x02] & 0x10) && !(dev->regs[0x0f] & 0x03))
fdc_set_base(dev->fdc, io_base);
fdc_set_dma_ch(dev->fdc, dev->fdc_dma);
@@ -77,7 +77,7 @@ vt82c686_lpt_handler(vt82c686_t *dev)
lpt1_remove();
if (((dev->regs[0x02] & 0x03) != 0x03) && (io_base >= 0x100) && (io_base <= io_mask))
if (((dev->regs[0x02] & 0x03) != 0x03) && !(dev->regs[0x0f] & 0x11) && (io_base >= 0x100) && (io_base <= io_mask))
lpt1_init(io_base);
if (dev->lpt_irq) {
@@ -92,7 +92,7 @@ vt82c686_serial_handler(vt82c686_t *dev, int uart)
{
serial_remove(dev->uart[uart]);
if (dev->regs[0x02] & (0x04 << uart))
if ((dev->regs[0x02] & (0x04 << uart)) && !(dev->regs[0x0f] & ((0x04 << uart) | 0x01)))
serial_setup(dev->uart[uart], dev->regs[0x07 + uart] << 2, dev->uart_irq[uart]);
}
@@ -161,6 +161,10 @@ vt82c686_write(uint16_t port, uint8_t val, void *priv)
case 0x0f:
dev->regs[reg] &= 0x7f;
vt82c686_lpt_handler(dev);
vt82c686_serial_handler(dev, 0);
vt82c686_serial_handler(dev, 1);
vt82c686_fdc_handler(dev);
break;
case 0x10:
@@ -243,20 +247,13 @@ vt82c686_sio_write(uint8_t addr, uint8_t val, void *priv)
static void
vt82c686_reset(vt82c686_t *dev)
{
memset(dev->regs, 0, 20);
memset(dev->regs, 0, 21);
dev->regs[0x00] = 0x3c;
dev->regs[0x02] = 0x03;
dev->regs[0x03] = 0xfc;
dev->regs[0x06] = 0xde;
dev->regs[0x07] = 0xfe;
dev->regs[0x08] = 0xbe;
fdc_reset(dev->fdc);
serial_setup(dev->uart[0], COM1_ADDR, COM1_IRQ);
serial_setup(dev->uart[1], COM2_ADDR, COM2_IRQ);
vt82c686_lpt_handler(dev);
vt82c686_serial_handler(dev, 0);
vt82c686_serial_handler(dev, 1);