static void
linuxPciCfgSetBits(PCITAG tag, int off, CARD32 mask, CARD32 bits)
{
int fd;
CARD32 val = 0xffffffff;
if (-1 != (fd = linuxPciOpenFile(tag,TRUE))) {
lseek(fd,off,SEEK_SET);
read(fd,&val,4);
val = PCI_CPU(val);
val = (val & ~mask) | (bits & mask);
val = PCI_CPU(val);
lseek(fd,off,SEEK_SET);
write(fd,&val,4);
}
}
static void
linuxPciCfgWrite(PCITAG tag, int off, CARD32 val)
{
int fd;
if (-1 != (fd = linuxPciOpenFile(tag,TRUE))) {
lseek(fd,off,SEEK_SET);
val = PCI_CPU(val);
write(fd,&val,4);
}
}
static void
freebsdPciCfgWrite(PCITAG tag, int off, CARD32 val)
{
struct pci_io io;
io.pi_sel.pc_bus = BUS(tag);
io.pi_sel.pc_dev = DFN(tag) >> 3;
io.pi_sel.pc_func = DFN(tag) & 7;
io.pi_reg = off;
io.pi_width = 4;
io.pi_data = PCI_CPU(val);
ioctl(pciFd, PCIOCWRITE, &io);
}
static CARD32
linuxPciCfgRead(PCITAG tag, int off)
{
int fd;
CARD32 val = 0xffffffff;
if (-1 != (fd = linuxPciOpenFile(tag,FALSE))) {
lseek(fd,off,SEEK_SET);
read(fd,&val,4);
}
return PCI_CPU(val);
}
static CARD32
freebsdPciCfgRead(PCITAG tag, int off)
{
struct pci_io io;
int error;
io.pi_sel.pc_bus = BUS(tag);
io.pi_sel.pc_dev = DFN(tag) >> 3;
io.pi_sel.pc_func = DFN(tag) & 7;
io.pi_reg = off;
io.pi_width = 4;
error = ioctl(pciFd, PCIOCREAD, &io);
if (error)
return ~0;
return PCI_CPU(io.pi_data);
}