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| author | Kevin O'Connor <kevin@koconnor.net> | 2008-08-17 11:08:46 -0400 |
|---|---|---|
| committer | Kevin O'Connor <kevin@koconnor.net> | 2008-08-17 11:08:46 -0400 |
| commit | cde7a58def4231f26d1dd53909067a143fa9eaab (patch) | |
| tree | 286639d8d129c015fc953fbd13097cd7e7ca6e63 /src/pcibios.c | |
| parent | 6cb8ba9cb3f8a71ac8e561f477dc2a51a2ecdb7a (diff) | |
| download | seabios-cde7a58def4231f26d1dd53909067a143fa9eaab.tar.gz | |
Return max bus number in int 1a/b101 call.
Add new option CONFIG_PCI_BUS_COUNT to set max bus count.
Use that option consistently in handle_1ab101() and pci.c.
Also, clean up comments of handle_1ab101().
Diffstat (limited to 'src/pcibios.c')
| -rw-r--r-- | src/pcibios.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/src/pcibios.c b/src/pcibios.c index 545ad8dd..3823c2eb 100644 --- a/src/pcibios.c +++ b/src/pcibios.c @@ -20,14 +20,13 @@ static void handle_1ab101(struct bregs *regs) { - regs->ax = 0x0001; - regs->bx = 0x0210; - regs->cx = 0; - // XXX - regs->cl should equal max bus number. + regs->al = 0x01; // Flags - "Config Mechanism #1" supported. + regs->bx = 0x0210; // PCI version 2.10 + regs->cl = CONFIG_PCI_BUS_COUNT - 1; regs->edx = 0x20494350; // "PCI " // XXX - bochs bios code sets edi to point to 32bit code - but no // reference to this in spec. - set_success(regs); + set_code_success(regs); } // find pci device |