+/* pci-bother.c
+ * PCI bothering code
+ * 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 <pci-bother.h>
struct pci_bother {
int bus, dev, fn;
unsigned short origstate;
+ unsigned long origbars[6];
};
static struct pci_bother bothers[MAX_BOTHERS];
int pci_bother_add(pci_dev_t *dev)
{
+ int i;
+
if (nbothers == MAX_BOTHERS)
return -1;
bothers[nbothers].fn = dev->fn;
bothers[nbothers].origstate = pci_read16(dev->bus, dev->dev, dev->fn, 0x04);
+ for (i = 0; i < 6; i++)
+ bothers[nbothers].origbars[i] = pci_read32(dev->bus, dev->dev, dev->fn, 0x10 + i * 4);
nbothers++;
void pci_bother_all()
{
- int i;
+ int i, j;
for (i = 0; i < nbothers; i++)
+ {
pci_write16(bothers[i].bus, bothers[i].dev, bothers[i].fn, 0x04, 0x0);
+ for (j = 0; j < 6; j++)
+ pci_write32(bothers[i].bus, bothers[i].dev, bothers[i].fn, 0x10 + j * 4, 0);
+ }
}
void pci_unbother_all()
{
- int i;
+ int i, j;
for (i = 0; i < nbothers; i++)
+ {
pci_write16(bothers[i].bus, bothers[i].dev, bothers[i].fn, 0x04, bothers[i].origstate);
+ for (j = 0; j < 6; j++)
+ pci_write32(bothers[i].bus, bothers[i].dev, bothers[i].fn, 0x10 + j * 4, bothers[i].origbars[j]);
+ }
}