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Added missing SiS496 files from last commit.

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This commit is contained in:
TomW 2013-07-18 21:20:05 +01:00
commit ee0188e7af
2 changed files with 138 additions and 0 deletions
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137
src/sis496.c Normal file
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#include <stdlib.h>
#include "ibm.h"
#include "device.h"
#include "io.h"
#include "mem.h"
#include "pci.h"
#include "sis496.h"
typedef struct sis496_t
{
uint8_t pci_conf[256];
} sis496_t;
void sis496_recalcmapping(sis496_t *sis496)
{
if (sis496->pci_conf[0x44] & 0x10)
{
if (sis496->pci_conf[0x45] & 0x01)
mem_sethandler(0xe0000, 0x8000, mem_read_ram, mem_read_ramw, mem_read_raml, NULL, NULL, NULL, NULL);
else
mem_sethandler(0xe0000, 0x8000, mem_read_ram, mem_read_ramw, mem_read_raml, mem_write_ram, mem_write_ramw, mem_write_raml, NULL);
}
else
mem_sethandler(0xe0000, 0x8000, mem_read_bios, mem_read_biosw, mem_read_biosl, mem_write_ram, mem_write_ramw, mem_write_raml, NULL);
if (sis496->pci_conf[0x44] & 0x20)
{
if (sis496->pci_conf[0x45] & 0x01)
mem_sethandler(0xe8000, 0x8000, mem_read_ram, mem_read_ramw, mem_read_raml, NULL, NULL, NULL, NULL);
else
mem_sethandler(0xe8000, 0x8000, mem_read_ram, mem_read_ramw, mem_read_raml, mem_write_ram, mem_write_ramw, mem_write_raml, NULL);
}
else
mem_sethandler(0xe8000, 0x8000, mem_read_bios, mem_read_biosw, mem_read_biosl, mem_write_ram, mem_write_ramw, mem_write_raml, NULL);
if (sis496->pci_conf[0x44] & 0x40)
{
if (sis496->pci_conf[0x45] & 0x01)
mem_sethandler(0xf0000, 0x8000, mem_read_ram, mem_read_ramw, mem_read_raml, NULL, NULL, NULL, NULL);
else
mem_sethandler(0xf0000, 0x8000, mem_read_ram, mem_read_ramw, mem_read_raml, mem_write_ram, mem_write_ramw, mem_write_raml, NULL);
}
else
mem_sethandler(0xf0000, 0x8000, mem_read_bios, mem_read_biosw, mem_read_biosl, mem_write_ram, mem_write_ramw, mem_write_raml, NULL);
if (sis496->pci_conf[0x44] & 0x80)
{
if (sis496->pci_conf[0x45] & 0x01)
mem_sethandler(0xf8000, 0x8000, mem_read_ram, mem_read_ramw, mem_read_raml, NULL, NULL, NULL, NULL);
else
mem_sethandler(0xf8000, 0x8000, mem_read_ram, mem_read_ramw, mem_read_raml, mem_write_ram, mem_write_ramw, mem_write_raml, NULL);
}
else
mem_sethandler(0xf8000, 0x8000, mem_read_bios, mem_read_biosw, mem_read_biosl, mem_write_ram, mem_write_ramw, mem_write_raml, NULL);
flushmmucache();
shadowbios = (sis496->pci_conf[0x44] & 0xf0);
}
void sis496_write(int func, int addr, uint8_t val, void *p)
{
sis496_t *sis496 = (sis496_t *)p;
pclog("sis496_write : addr=%02x val=%02x\n", addr, val);
switch (addr)
{
case 0x44: /*Shadow configure*/
if ((sis496->pci_conf[0x44] & val) ^ 0xf0)
{
sis496->pci_conf[0x44] = val;
sis496_recalcmapping(sis496);
}
break;
case 0x45: /*Shadow configure*/
//if (val == 3)
// output = 3;
if ((sis496->pci_conf[0x45] & val) ^ 0x01)
{
sis496->pci_conf[0x45] = val;
sis496_recalcmapping(sis496);
}
break;
}
if ((addr >= 4 && addr < 8) || addr >= 0x40)
sis496->pci_conf[addr] = val;
}
uint8_t sis496_read(int func, int addr, void *p)
{
sis496_t *sis496 = (sis496_t *)p;
return sis496->pci_conf[addr];
}
void *sis496_init()
{
sis496_t *sis496 = malloc(sizeof(sis496_t));
memset(sis496, 0, sizeof(sis496_t));
pci_add_specific(5, sis496_read, sis496_write, sis496);
sis496->pci_conf[0x00] = 0x39; /*SiS*/
sis496->pci_conf[0x01] = 0x10;
sis496->pci_conf[0x02] = 0x96; /*496/497*/
sis496->pci_conf[0x03] = 0x04;
sis496->pci_conf[0x04] = 7;
sis496->pci_conf[0x05] = 0;
sis496->pci_conf[0x06] = 0x80;
sis496->pci_conf[0x07] = 0x02;
sis496->pci_conf[0x08] = 2; /*Device revision*/
sis496->pci_conf[0x09] = 0x00; /*Device class (PCI bridge)*/
sis496->pci_conf[0x0a] = 0x00;
sis496->pci_conf[0x0b] = 0x06;
sis496->pci_conf[0x0e] = 0x00; /*Single function device*/
}
void sis496_close(void *p)
{
sis496_t *sis496 = (sis496_t *)p;
free(sis496);
}
device_t sis496_device =
{
"SiS 496/497",
sis496_init,
sis496_close,
NULL,
NULL
};

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src/sis496.h Normal file
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extern device_t sis496_device;