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fix match_classcode()

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This commit is contained in:
Markus Fröschle
2016-12-06 16:35:44 +00:00
parent 80c7bd2341
commit 205561e559
1 changed files with 7 additions and 2 deletions
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9
BaS_gcc/pci/pci.c
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@@ -511,13 +511,18 @@ static bool match_classcode(uint32_t handle, uint32_t classcode)
dbg("classcode=0x%08x, value=0x%08x\r\n", classcode, value); dbg("classcode=0x%08x, value=0x%08x\r\n", classcode, value);
value >>= 8; /* shift away PCI revision id */
for (i = 0; i < 3; i++) /* loop through mask */ for (i = 0; i < 3; i++) /* loop through mask */
{ {
if ((find_mask >> i) & 1) if ((find_mask >> i) & 1)
{ {
dbg("compare 0x%02x against 0x%02x\r\n", (value >> ((i + 1) * 8)) & 0xff, (classcode >> (i * 8)) & 0xff); dbg("compare 0x%02x against 0x%02x\r\n", value & 0xff, classcode & 0xff);
if (! (((value >> ((i + 1) * 8)) & 0xff) == ((classcode >> (i * 8)) & 0xff))) if (! ((value & 0xff) == classcode & 0xff))
return false; return false;
else
classcode >>= 8;
value >>= 8;
} }
} }
return true; return true;