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Move xf86FindPciDeviceVendor and xf86FindPciClass from xf86pciBus.c to

Browse source 
xf86int10.c.  Refactor common code from those functions to do_find.
This commit is contained in:
Ian Romanick 2006-08-02 10:54:41 -07:00
commit a0f2e1cae4
4 changed files with 65 additions and 81 deletions
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74
hw/xfree86/int10/xf86int10.c
View file

@ -593,12 +593,68 @@ int42_handler(xf86Int10InfoPtr pInt)
#define DEVICE_NOT_FOUND 0x86
#define BAD_REGISTER_NUMBER 0x87
#ifdef SHOW_ALL_DEVICES
/**
* \todo
* Eliminate the reliance on \c xf86FindPciDeviceVendor and
* \c xf86FindPciDeviceClass in this function. Create new functions in this
* file that directly use libpciaccess to replace them.
* These functions are meant to be used by the PCI BIOS emulation. Some
* BIOSes need to see if there are \b other chips of the same type around so
* by setting \c exclude one PCI device can be explicitely excluded, if
* required.
*/
static struct pci_device *
do_find(const struct pci_id_match *m, char n, const struct pci_device * exclude)
{
struct pci_device *dev;
struct pci_device_iterator *iter;
n++;
iter = pci_id_match_iterator_create(m);
while ((dev = pci_device_next(iter)) != NULL) {
if ((dev != exclude) && !(--n)) {
break;
}
}
pci_iterator_destroy(iter);
return dev;
}
static struct pci_device *
find_pci_device_vendor(CARD16 vendorID, CARD16 deviceID,
char n, const struct pci_device * exclude)
{
struct pci_id_match m;
m.vendor_id = vendorID;
m.device_id = deviceID;
m.subvendor_id = PCI_MATCH_ANY;
m.subdevice_id = PCI_MATCH_ANY;
m.device_class = 0;
m.device_class_mask = 0;
return do_find(& m, n, exclude);
}
static struct pci_device *
find_pci_class(CARD8 intf, CARD8 subClass, CARD16 _class,
char n, const struct pci_device * exclude)
{
struct pci_id_match m;
m.vendor_id = PCI_MATCH_ANY;
m.device_id = PCI_MATCH_ANY;
m.subvendor_id = PCI_MATCH_ANY;
m.subdevice_id = PCI_MATCH_ANY;
m.device_class = (((uint32_t)_class) << 16)
| (((uint32_t)subClass) << 8) | intf;
m.device_class_mask = 0x00ffffff;
return do_find(& m, n, exclude);
}
#endif
static int
int1A_handler(xf86Int10InfoPtr pInt)
{
@ -635,7 +691,7 @@ int1A_handler(xf86Int10InfoPtr pInt)
}
#ifdef SHOW_ALL_DEVICES
else
if ((dev = xf86FindPciDeviceVendor(X86_EDX, X86_ECX, X86_ESI, pvp))) {
if ((dev = find_pci_device_vendor(X86_EDX, X86_ECX, X86_ESI, pvp))) {
X86_EAX = X86_AL | (SUCCESSFUL << 8);
X86_EFLAGS &= ~((unsigned long)0x01); /* clear carry flag */
X86_EBX = pciSlotBX(dev);
@ -656,10 +712,10 @@ int1A_handler(xf86Int10InfoPtr pInt)
X86_EFLAGS &= ~((unsigned long)0x01); /* clear carry flag */
}
#ifdef SHOW_ALL_DEVICES
else if ((dev = xf86FindPciClass(X86_CL, X86_CH,
(X86_ECX & 0xffff0000) >> 16,
X86_ESI, pvp))) {
p X86_EAX = X86_AL | (SUCCESSFUL << 8);
else if ((dev = find_pci_class(X86_CL, X86_CH,
(X86_ECX & 0xffff0000) >> 16,
X86_ESI, pvp))) {
X86_EAX = X86_AL | (SUCCESSFUL << 8);
X86_EFLAGS &= ~((unsigned long)0x01); /* clear carry flag */
X86_EBX = pciSlotBX(dev);
}