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ALi M1543(c) ACPI and SMBUS PCI BAR's now correctly return all 0x00's when locked, as documented by the M1543 datasheet, fixes the PCI error found by Dizzy on the ASUS P5A with Debian Lenny.

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This commit is contained in:
OBattler
2023-12-17 12:43:07 +01:00
parent 4b402c22cd
commit aa0b4dfab7
1 changed files with 60 additions and 47 deletions
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21
src/chipset/ali1543.c
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@@ -984,7 +984,7 @@ static void
ali7101_write(int func, int addr, uint8_t val, void *priv)
{
ali1543_t *dev = (ali1543_t *) priv;
ali1543_log("M7101: dev->pmu_conf[%02x] = %02x\n", addr, val);
ali1543_log("M7101: [W] dev->pmu_conf[%02x] = %02x\n", addr, val);
if (func > 0)
return;
@@ -1408,14 +1408,24 @@ ali7101_read(int func, int addr, void *priv)
uint8_t ret = 0xff;
if (dev->pmu_dev_enable && (func == 0)) {
if ((dev->pmu_conf[0xc9] & 0x01) && (addr >= 0x40) && (addr != 0xc9))
return 0xff;
if (!(dev->pmu_conf[0xc9] & 0x01) || (addr < 0x40) || (addr == 0xc9)) {
/* TODO: C4, C5 = GPIREG (masks: 0D, 0E) */
switch (addr) {
default:
ret = dev->pmu_conf[addr];
break;
case 0x10 ... 0x13:
if (dev->pmu_conf[0x5b] & 0x02)
ret = 0x00;
else
ret = dev->pmu_conf[addr];
break;
case 0x14 ... 0x17:
if (dev->pmu_conf[0x5b] & 0x04)
ret = 0x00;
else
ret = dev->pmu_conf[addr];
break;
case 0x42:
ret = (dev->pmu_conf[addr] & 0xf7) | (nvr_smi_status(dev->nvr) ? 0x08 : 0x00);
break;
@@ -1466,6 +1476,9 @@ ali7101_read(int func, int addr, void *priv)
}
}
}
}
ali1543_log("M7101: [R] dev->pmu_conf[%02x] = %02x\n", addr, ret);
return ret;
}