static int data_port_write(ushort_t port, void * src, uint_t length, struct vm_device * vmdev) {
- struct pci_internal * pci_state = (struct pci_internal *)vmdev->private_data;;
+ struct pci_internal * pci_state = (struct pci_internal *)vmdev->private_data;
struct pci_device * pci_dev = NULL;
uint_t reg_num = pci_state->addr_reg.reg_num + (port & 0x3);
int i;
for (i = 0; i < length; i++) {
- if (is_cfg_reg_writable(pci_dev->config_header.header_type, reg_num)) {
- pci_dev->config_space[reg_num + i] = *((uint8_t *)src + i);
+ uint_t cur_reg = reg_num + i;
+
+ if (is_cfg_reg_writable(pci_dev->config_header.header_type, cur_reg)) {
+ pci_dev->config_space[cur_reg] = *((uint8_t *)src + i);
+
+ if ((cur_reg >= 0x10) && (cur_reg < 0x28)) {
+ // BAR Reg
+ int bar_reg = (cur_reg & ~0x3) - 0x10;
+
+ if (pci_dev->bar[bar_reg].bar_update) {
+ pci_dev->bar_update_flag = 1;
+ pci_dev->bar[bar_reg].updated = 1;
+ }
+ } else if ((cur_reg >= 0x30) && (cur_reg < 0x34)) {
+ pci_dev->ext_rom_updated = 1;
+ } else if ((cur_reg == 0x04) || (cur_reg == 0x05)) {
+ // COMMAND update
+ } else if (cur_reg == 0x0f) {
+ // BIST update
+ }
}
}
if (pci_dev->config_update) {
pci_dev->config_update(pci_dev, reg_num, length);
}
-
+
+ // Scan for BAR updated
+ if (pci_dev->bar_update_flag) {
+ for (i = 0; i < 6; i++) {
+ if ((pci_dev->bar[i].updated) && (pci_dev->bar[i].bar_update)) {
+ pci_dev->bar[i].bar_update(pci_dev, i);
+ }
+ pci_dev->bar[i].updated = 0;
+ }
+ pci_dev->bar_update_flag = 0;
+ }
+
+ if ((pci_dev->ext_rom_update_flag) && (pci_dev->ext_rom_update)) {
+ pci_dev->ext_rom_update(pci_dev);
+ pci_dev->ext_rom_update_flag = 0;
+ }
+
+
return length;
}
static int init_i440fx(struct vm_device * dev) {
struct pci_device * pci_dev = v3_pci_register_device(dev, 0, "i440FX", 0,
- NULL, NULL);
+ NULL, NULL, NULL);
if (!pci_dev) {
return -1;
PrintError("Could not intialize i440fx\n");
return -1;
}
+
+ PrintDebug("Sizeof config header=%d\n", sizeof(struct pci_config_header));
for (i = 0; i < 4; i++) {
v3_dev_hook_io(dev, CONFIG_ADDR_PORT + i, &addr_port_read, &addr_port_write);
const char * name,
int dev_num,
int (*config_update)(struct pci_device * pci_dev, uint_t reg_num, int length),
+ int (*bar_update)(struct pci_device * pci_dev, uint_t bar),
void * private_data) {
struct pci_internal * pci_state = (struct pci_internal *)pci->private_data;
strncpy(pci_dev->name, name, sizeof(pci_dev->name));
pci_dev->vm_dev = pci;
+ // register update callbacks
pci_dev->config_update = config_update;
+ pci_dev->bar_update = bar_update;
pci_dev->priv_data = private_data;