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[pci] Rewrite unrelicensable portions of pci.h

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Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2015-03-03 00:08:41 +00:00
parent 06c8a27b74
commit e399fc0d21
11 changed files with 108 additions and 305 deletions
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10
src/drivers/bus/pciextra.c
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@@ -26,7 +26,7 @@ int pci_find_capability ( struct pci_device *pci, int cap ) {
return 0;
pci_read_config_byte ( pci, PCI_HEADER_TYPE, &hdr_type );
switch ( hdr_type & 0x7F ) {
switch ( hdr_type & PCI_HEADER_TYPE_MASK ) {
case PCI_HEADER_TYPE_NORMAL:
case PCI_HEADER_TYPE_BRIDGE:
default:
@@ -38,13 +38,13 @@ int pci_find_capability ( struct pci_device *pci, int cap ) {
}
while ( ttl-- && pos >= 0x40 ) {
pos &= ~3;
pci_read_config_byte ( pci, pos + PCI_CAP_LIST_ID, &id );
pci_read_config_byte ( pci, pos + PCI_CAP_ID, &id );
DBG ( "PCI Capability: %d\n", id );
if ( id == 0xff )
break;
if ( id == cap )
return pos;
pci_read_config_byte ( pci, pos + PCI_CAP_LIST_NEXT, &pos );
pci_read_config_byte ( pci, pos + PCI_CAP_NEXT, &pos );
}
return 0;
}
@@ -76,9 +76,9 @@ unsigned long pci_bar_size ( struct pci_device *pci, unsigned int reg ) {
/* Restore the original command register. This reenables decoding. */
pci_write_config_word ( pci, PCI_COMMAND, cmd );
if ( start & PCI_BASE_ADDRESS_SPACE_IO ) {
size &= PCI_BASE_ADDRESS_IO_MASK;
size &= ~PCI_BASE_ADDRESS_IO_MASK;
} else {
size &= PCI_BASE_ADDRESS_MEM_MASK;
size &= ~PCI_BASE_ADDRESS_MEM_MASK;
}
/* Find the lowest bit set */
size = size & ~( size - 1 );