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libpci initial stuff

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This commit is contained in:
phcoder 2009-10-14 10:11:59 +02:00
parent bf7f7a18f4
commit 3affd0ece8
11 changed files with 147 additions and 37 deletions
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23
bus/pci.c
View file

@ -21,41 +21,40 @@
#include <grub/pci.h>
grub_pci_address_t
grub_pci_make_address (int bus, int device, int function, int reg)
grub_pci_make_address (grub_pci_device_t dev, int reg)
{
return (1 << 31) | (bus << 16) | (device << 11) | (function << 8) | (reg << 2);
return (1 << 31) | (dev.bus << 16) | (dev.device << 11)
| (dev.function << 8) | (reg << 2);
}
void
grub_pci_iterate (grub_pci_iteratefunc_t hook)
{
int bus;
int dev;
int func;
grub_pci_device_t dev;
grub_pci_address_t addr;
grub_pci_id_t id;
grub_uint32_t hdr;
for (bus = 0; bus < 256; bus++)
for (dev.bus = 0; dev.bus < 256; dev.bus++)
{
for (dev = 0; dev < 32; dev++)
for (dev.device = 0; dev.device < 32; dev.device++)
{
for (func = 0; func < 8; func++)
for (dev.function = 0; dev.function < 8; dev.function++)
{
addr = grub_pci_make_address (bus, dev, func, 0);
addr = grub_pci_make_address (dev, 0);
id = grub_pci_read (addr);
/* Check if there is a device present. */
if (id >> 16 == 0xFFFF)
continue;
if (hook (bus, dev, func, id))
if (hook (dev, id))
return;
/* Probe only func = 0 if the device if not multifunction */
if (func == 0)
if (dev.function == 0)
{
addr = grub_pci_make_address (bus, dev, func, 3);
addr = grub_pci_make_address (dev, 3);
hdr = grub_pci_read (addr);
if (!(hdr & 0x800000))
break;

6
bus/usb/ohci.c
View file

@ -113,7 +113,7 @@ grub_ohci_writereg32 (struct grub_ohci *o,
/* Iterate over all PCI devices. Determine if a device is an OHCI
controller. If this is the case, initialize it. */
static int NESTED_FUNC_ATTR
grub_ohci_pci_iter (int bus, int device, int func,
grub_ohci_pci_iter (grub_pci_device_t dev,
grub_pci_id_t pciid __attribute__((unused)))
{
grub_uint32_t class_code;
@ -126,7 +126,7 @@ grub_ohci_pci_iter (int bus, int device, int func,
grub_uint32_t revision;
grub_uint32_t frame_interval;
addr = grub_pci_make_address (bus, device, func, 2);
addr = grub_pci_make_address (dev, 2);
class_code = grub_pci_read (addr) >> 8;
interf = class_code & 0xFF;
@ -138,7 +138,7 @@ grub_ohci_pci_iter (int bus, int device, int func,
return 0;
/* Determine IO base address. */
addr = grub_pci_make_address (bus, device, func, 4);
addr = grub_pci_make_address (dev, 4);
base = grub_pci_read (addr);
#if 0

6
bus/usb/uhci.c
View file

@ -138,7 +138,7 @@ grub_uhci_portstatus (grub_usb_controller_t dev,
/* Iterate over all PCI devices. Determine if a device is an UHCI
controller. If this is the case, initialize it. */
static int NESTED_FUNC_ATTR
grub_uhci_pci_iter (int bus, int device, int func,
grub_uhci_pci_iter (grub_pci_device_t dev,
grub_pci_id_t pciid __attribute__((unused)))
{
grub_uint32_t class_code;
@ -151,7 +151,7 @@ grub_uhci_pci_iter (int bus, int device, int func,
struct grub_uhci *u;
int i;
addr = grub_pci_make_address (bus, device, func, 2);
addr = grub_pci_make_address (dev, 2);
class_code = grub_pci_read (addr) >> 8;
interf = class_code & 0xFF;
@ -163,7 +163,7 @@ grub_uhci_pci_iter (int bus, int device, int func,
return 0;
/* Determine IO base address. */
addr = grub_pci_make_address (bus, device, func, 8);
addr = grub_pci_make_address (dev, 8);
base = grub_pci_read (addr);
/* Stop if there is no IO space base address defined. */
if (! (base & 1))