static int board_asus_a7v8x_mx(const char *name)
{
struct pci_dev *dev;
uint8_t val;
dev = pci_dev_find(0x1106, 0x3177); /* VT8235 ISA bridge */
if (!dev)
dev = pci_dev_find(0x1106, 0x3227); /* VT8237 ISA bridge */
if (!dev) {
fprintf(stderr, "\nERROR: VT823x ISA bridge not found.\n");
return -1;
}
/* This bit is marked reserved actually */
val = pci_read_byte(dev, 0x59);
val &= 0x7F;
pci_write_byte(dev, 0x59, val);
/* Raise ROM MEMW# line on Winbond w83697 SuperIO */
w836xx_ext_enter();
if (!(wbsio_read(0x24) & 0x02)) /* flash rom enabled? */
wbsio_mask(0x24, 0x08, 0x08); /* enable MEMW# */
w836xx_ext_leave();
return 0;
}
static void
exec_op(struct op *op, struct pci_dev *dev)
{
char *mm[] = { NULL, "%02x", "%04x", NULL, "%08x" };
char *m = mm[op->width];
unsigned int x;
int i, addr;
if (verbose)
printf("%02x:%02x.%x:%02x", dev->bus, dev->dev, dev->func, op->addr);
addr = op->addr;
if (op->num_values >= 0)
for(i=0; i<op->num_values; i++)
{
if (verbose)
{
putchar(' ');
printf(m, op->values[i]);
}
if (demo_mode)
continue;
switch (op->width)
{
case 1:
pci_write_byte(dev, addr, op->values[i]);
break;
case 2:
pci_write_word(dev, addr, op->values[i]);
break;
default:
pci_write_long(dev, addr, op->values[i]);
break;
}
addr += op->width;
}
else
{
if (verbose)
printf(" = ");
if (!demo_mode)
{
switch (op->width)
{
case 1:
x = pci_read_byte(dev, addr);
break;
case 2:
x = pci_read_word(dev, addr);
break;
default:
x = pci_read_long(dev, addr);
break;
}
printf(m, x);
}
else
putchar('?');
}
putchar('\n');
}
static int board_via_epia_m(const char *name)
{
struct pci_dev *dev;
unsigned int base;
uint8_t val;
dev = pci_dev_find(0x1106, 0x3177); /* VT8235 ISA bridge */
if (!dev) {
fprintf(stderr, "\nERROR: VT8235 ISA Bridge not found.\n");
return -1;
}
/* GPIO12-15 -> output */
val = pci_read_byte(dev, 0xE4);
val |= 0x10;
pci_write_byte(dev, 0xE4, val);
/* Get Power Management IO address. */
base = pci_read_word(dev, 0x88) & 0xFF80;
/* enable GPIO15 which is connected to write protect. */
val = inb(base + 0x4D);
val |= 0x80;
outb(val, base + 0x4D);
return 0;
}
int undo_pci_write(void *p)
{
struct undo_pci_write_data *data = p;
if (pacc == NULL) {
msg_perr("%s: Tried to undo PCI writes without a valid PCI context!\n"
"Please report a bug at [email protected]\n", __func__);
return 1;
}
msg_pdbg("Restoring PCI config space for %02x:%02x:%01x reg 0x%02x\n",
data->dev.bus, data->dev.dev, data->dev.func, data->reg);
switch (data->type) {
case pci_write_type_byte:
pci_write_byte(&data->dev, data->reg, data->bytedata);
break;
case pci_write_type_word:
pci_write_word(&data->dev, data->reg, data->worddata);
break;
case pci_write_type_long:
pci_write_long(&data->dev, data->reg, data->longdata);
break;
}
/* p was allocated in register_undo_pci_write. */
free(p);
return 0;
}
static int enable_flash_rdc_r8610(struct pci_dev *dev, const char *name)
{
uint8_t tmp;
/* enable ROMCS for writes */
tmp = pci_read_byte(dev, 0x43);
tmp |= 0x80;
pci_write_byte(dev, 0x43, tmp);
/* read the bootstrapping register */
tmp = pci_read_byte(dev, 0x40) & 0x3;
switch (tmp) {
case 3:
internal_buses_supported = BUS_FWH;
break;
case 2:
internal_buses_supported = BUS_LPC;
break;
default:
internal_buses_supported = BUS_PARALLEL;
break;
}
return 0;
}
int try_ich(struct pci_access *pci,
uint16_t reg_gpiobase, uint16_t reg_gc,
const char *desc, int *fatal) {
MSG("Checking for a %s system", desc);
struct pci_dev *d31f0 = pci_find_dev(pci, 0, 31, 0);
uint32_t gpiobase = pci_read_long(d31f0, reg_gpiobase);
uint8_t gc = pci_read_byte(d31f0, reg_gc);
MSG("GPIOBASE=%08x, GC=%02x", gpiobase, gc);
if(gpiobase == 0xffffffff) {
*fatal = 1;
ERR("Cannot read GPIOBASE, are you running me as root?");
} else if(gpiobase == 0) {
ERR("GPIOBASE not implemented at %04x", reg_gpiobase);
} else if(!(gpiobase & 1)) {
*fatal = 1;
ERR("GPIOBASE is not an I/O BAR");
}
if(!(gpiobase & 0xfffc)) {
const uint32_t DEFAULT_GPIOBASE = 0x0480;
MSG("GPIOBASE is not configured, setting to %08x and hoping this works", DEFAULT_GPIOBASE);
pci_write_long(d31f0, reg_gpiobase, DEFAULT_GPIOBASE);
gpiobase = pci_read_long(d31f0, reg_gpiobase);
if((gpiobase & 0xfffc) != DEFAULT_GPIOBASE) {
ERR("Cannot set GPIOBASE");
}
}
MSG("GPIO decoding is %s", (gc & REG_ICHx_GC_EN) ? "enabled" : "disabled");
MSG("GPIO lockdown is %s", (gc & REG_ICHx_GC_GLE) ? "enabled" : "disabled");
if(!(gc & REG_ICHx_GC_EN)) {
MSG("Enabling GPIO decoding");
pci_write_byte(d31f0, reg_gc, gc | REG_ICHx_GC_EN);
gc = pci_read_byte(d31f0, reg_gc);
if(!(gc & REG_ICHx_GC_EN)) {
ERR("Cannot enable GPIO decoding");
}
}
gpiobase &= 0xfffc;
if(ioperm(gpiobase, 128, 1) == -1) {
ERR("Cannot access I/O ports %04x:%04x", gpiobase, gpiobase + 128);
}
for(int n = 1; n < 3; n++) {
MSG("USE_SEL%d=%08x", n, inl(gpiobase + ichx_regs[GPIO_USE_SEL][n]));
MSG("IO_SEL%d=%08x", n, inl(gpiobase + ichx_regs[GPIO_IO_SEL][n]));
MSG("LVL%d=%08x", n, inl(gpiobase + ichx_regs[GPIO_LVL][n]));
}
return 0;
}
static void process_uhci(struct pci_address* addr, pci_device* dev)
{
uint8_t revision = pci_read_byte(addr, 0x60);
if(revision != UHCI_REV_1_0) {
// This host controller indicates that it supports a version
// of the USB specification that is *not* 1.0. Ignore it
KWARN("Detected UHCI with unsupported revision, ignoring...");
return;
}
// Bit 0 indicates whether it's memory mapped or port I/O
bool memory_mapped = (dev->base_addr4 & 0x1) == 1;
// Beore we initialize the card, make sure the cards I/O is disabled
uint16_t cmd = pci_read_word(addr, PCI_COMMAND_REG_OFFSET);
cmd = (cmd & ~0x1);
pci_write_word(addr, PCI_COMMAND_REG_OFFSET, cmd);
// THe USB book I'm reading is telling me to null out the
// capabilities register as well as the two registers marked as "reserved"
// Not sure why, TODO: Investigate! :-S
pci_write_dword(addr, PCI_CAPS_OFF_REG_OFFSET, 0x00000000);
pci_write_dword(addr, 0x38, 0x00000000);
// Set the IRQ
pci_write_byte(addr, PCI_IRQ_REG_OFFSET, UHCI_IRQ);
// Now try to get the size of the address space
//uint32_t size = pci_device_get_memory_size(addr, PCI_BASE_ADDR4_REG_OFFSET);
// Enable bus mastering and I/O access
pci_write_word(addr, 0x04, memory_mapped ? 0x06 : 0x05);
// Disable legacy support and clear current status
pci_write_word(addr, PCI_LEG_SUP_REG_OFFSET,
PCI_LEGACY_PTS | // Clear Sequence ended bit
PCI_LEGACY_TBY64W | PCI_LEGACY_TBY64R | PCI_LEGACY_TBY60W | PCI_LEGACY_TBY60R); // Clear status
// The device is now ready for the UHCI driver to take over
uhci_init(dev->base_addr4, dev, addr, UHCI_IRQ);
}
int rpci_write_byte(struct pci_dev *dev, int reg, uint8_t data)
{
register_undo_pci_write_byte(dev, reg);
return pci_write_byte(dev, reg, data);
}
static void
exec_op(struct op *op, struct pci_dev *dev)
{
const char * const formats[] = { NULL, " %02x", " %04x", NULL, " %08x" };
const char * const mask_formats[] = { NULL, " %02x->(%02x:%02x)->%02x", " %04x->(%04x:%04x)->%04x", NULL, " %08x->(%08x:%08x)->%08x" };
unsigned int i, x, y;
int addr = 0;
int width = op->width;
char slot[16];
sprintf(slot, "%04x:%02x:%02x.%x", dev->domain, dev->bus, dev->dev, dev->func);
trace("%s ", slot);
if (op->cap_type)
{
struct pci_cap *cap;
cap = pci_find_cap(dev, op->cap_id, op->cap_type);
if (cap)
addr = cap->addr;
else
die("%s: %s %04x not found", slot, ((op->cap_type == PCI_CAP_NORMAL) ? "Capability" : "Extended capability"), op->cap_id);
trace(((op->cap_type == PCI_CAP_NORMAL) ? "(cap %02x @%02x) " : "(ecap %04x @%03x) "), op->cap_id, addr);
}
addr += op->addr;
trace("@%02x", addr);
/* We have already checked it when parsing, but addressing relative to capabilities can change the address. */
if (addr & (width-1))
die("%s: Unaligned access of width %d to register %04x", slot, width, addr);
if (addr + width > 0x1000)
die("%s: Access of width %d to register %04x out of range", slot, width, addr);
if (op->num_values)
{
for (i=0; i<op->num_values; i++)
{
if ((op->values[i].mask & max_values[width]) == max_values[width])
{
x = op->values[i].value;
trace(formats[width], op->values[i].value);
}
else
{
switch (width)
{
case 1:
y = pci_read_byte(dev, addr);
break;
case 2:
y = pci_read_word(dev, addr);
break;
default:
y = pci_read_long(dev, addr);
break;
}
x = (y & ~op->values[i].mask) | op->values[i].value;
trace(mask_formats[width], y, op->values[i].value, op->values[i].mask, x);
}
if (!demo_mode)
{
switch (width)
{
case 1:
pci_write_byte(dev, addr, x);
break;
case 2:
pci_write_word(dev, addr, x);
break;
default:
pci_write_long(dev, addr, x);
break;
}
}
addr += width;
}
trace("\n");
}
else
{
trace(" = ");
switch (width)
{
case 1:
x = pci_read_byte(dev, addr);
break;
case 2:
x = pci_read_word(dev, addr);
break;
default:
x = pci_read_long(dev, addr);
break;
}
printf(formats[width]+1, x);
putchar('\n');
}
}
void pci_config_write_byte(struct pci_device *pdev, uint32_t offset, uint8_t word)
{
pci_write_byte(pdev->bus, pdev->slot, pdev->func, offset, word);
}