+/* pci.c
+ * General-purpose PCI probe routines
+ * NetWatch system management mode administration console
+ *
+ * Copyright (c) 2008 Jacob Potter and Joshua Wise. All rights reserved.
+ * This program is free software; you can redistribute and/or modify it under
+ * the terms found in the file LICENSE in the root of this source tree.
+ *
+ */
+
#include <pci.h>
#include <output.h>
-int pci_probe(pci_probe_fn_t probe)
+int pci_probe(pci_probe_fn_t probe, void *data)
{
int devsfound = 0;
pci_dev_t pdev;
for (bus = 0; bus < 0x100; bus++)
for (dev = 0; dev < 0x20; dev++)
- if (pci_read32(bus, dev, 0, 0) != 0xFFFFFFFF)
- for (fn = 0; fn < 8; fn++)
+ {
+ if (pci_read32(bus, dev, 0, 0) == 0xFFFFFFFF)
+ continue;
+ for (fn = 0; fn < 8; fn++)
+ {
+ int bar;
+
+ if (pci_read32(bus, dev, fn, 0) == 0xFFFFFFFF)
+ continue;
+
+ if ((fn != 0) && !(pci_read8(bus, dev, 0, 0x0E) & 0x80))
+ continue;
+
+ pdev.bus = bus;
+ pdev.dev = dev;
+ pdev.fn = fn;
+ pdev.vid = pci_read16(bus, dev, fn, 0);
+ pdev.did = pci_read16(bus, dev, fn, 2);
+
+ for (bar = 0; bar < 6; bar++)
{
- int bar;
-
- if (pci_read32(bus, dev, fn, 0) == 0xFFFFFFFF)
- continue;
-
- if ((fn != 0) && !(pci_read8(bus, dev, 0, 0x0E) & 0x80))
+ unsigned long bardat = pci_read32(bus, dev, fn, 0x10 + bar*4);
+ if (bardat == 0)
+ {
+ pdev.bars[bar].type = PCI_BAR_NONE;
continue;
-
- pdev.bus = bus;
- pdev.dev = dev;
- pdev.fn = fn;
- pdev.vid = pci_read16(bus, dev, fn, 0);
- pdev.did = pci_read16(bus, dev, fn, 2);
-
- for (bar = 0; bar < 6; bar++)
+ }
+ if (bardat & 1)
{
- unsigned long bardat = pci_read32(bus, dev, fn, 0x10 + bar*4);
- if (bardat == 0)
+ pdev.bars[bar].type = PCI_BAR_IO;
+ pdev.bars[bar].addr = bardat & ~0x3;
+ } else {
+ pdev.bars[bar].prefetchable = (bardat >> 3) & 1;
+ switch ((bardat >> 1) & 0x3)
{
+ case 0:
+ pdev.bars[bar].type = PCI_BAR_MEMORY32;
+ pdev.bars[bar].addr = bardat & ~0xF;
+ break;
+ case 2:
+ pdev.bars[bar].type = PCI_BAR_MEMORY64;
+ bar++;
+ pdev.bars[bar].type = PCI_BAR_NONE;
+ break;
+ default:
pdev.bars[bar].type = PCI_BAR_NONE;
continue;
}
- if (bardat & 1)
- {
- pdev.bars[bar].type = PCI_BAR_IO;
- pdev.bars[bar].addr = bardat & ~0x3;
- } else {
- pdev.bars[bar].prefetchable = (bardat >> 3) & 1;
- switch ((bardat >> 1) & 0x3)
- {
- case 0:
- pdev.bars[bar].type = PCI_BAR_MEMORY32;
- pdev.bars[bar].addr = bardat & ~0xF;
- break;
- case 2:
- pdev.bars[bar].type = PCI_BAR_MEMORY64;
- bar++;
- pdev.bars[bar].type = PCI_BAR_NONE;
- break;
- default:
- pdev.bars[bar].type = PCI_BAR_NONE;
- continue;
- }
- }
}
-
- devsfound += probe(&pdev);
}
+
+ devsfound += probe(&pdev, data);
+ }
+ }
return devsfound;
}
-static int _enumfn(pci_dev_t *pdev)
+static int _enumfn(pci_dev_t *pdev, void *data)
{
int bar;
void pci_bus_enum()
{
- pci_probe(_enumfn);
+ pci_probe(_enumfn, 0x0);
}
+static int _probefn(pci_dev_t *dev, void *d)
+{
+ pci_driver_t *driver = d;
+ int i;
+
+ for (i = 0; i < driver->id_count; i++)
+ if ((dev->vid == driver->ids[i].vid) && (dev->did == driver->ids[i].did))
+ {
+ outputf("Probing PCI device: %s", driver->ids[i].name ? driver->ids[i].name : driver->name);
+ return driver->probe(dev, d);
+ }
+ return 0;
+}
+
+int pci_probe_driver(pci_driver_t *driver)
+{
+ return pci_probe(_probefn, driver);
+}