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Copyright (C) 4Front Technologies 2005-2007. Released under BSD license.
#include <dev/pci/pcivar.h> /* For pci_get macros! */ #include <dev/pci/pcireg.h> /* PCI Support Functions */ static oss_device_t *device_list[16]; static device_t bsd_devices[16]; static int ndevs = 0;
Compare the device ID of this device against the IDs that this driver supports. If there is a match, set the description and return success.
static int
osspci_probe (device_t dev)
{
#ifdef DEVTYPE_PCI
int i, ok = 0;
int vendor, device, class;
oss_device_t *osdev;
for (i = 0; i < ndevs; i++)
if (dev == bsd_devices[i]) /* Already detected */
{
return ENXIO;
}
if (ndevs >= 16)
{
printf (DRIVER_NICK ": Too many instances\n");
return ENXIO;
}
vendor = pci_get_vendor (dev);
device = pci_get_device (dev);
class = pci_get_class (dev);
// printf("PCI dev %08lx c=%x, v=%04x, d=%04x\n", (unsigned long)dev, class, vendor, device);
if (class != 4) /* Not a multimedia device */
return ENXIO;
for (i = 0; id_table[i].vendor != 0; i++)
if (vendor == id_table[i].vendor && device == id_table[i].device) /* Match */
{
ok = 1;
break;
}
if (!ok)
{
return (ENXIO);
}
if ((osdev =
osdev_create (dev, DRIVER_TYPE, ndevs, DRIVER_NICK, NULL)) == NULL)
{
return ENOMEM;
}
if (!DRIVER_ATTACH (osdev))
return EIO;
bsd_devices[ndevs] = dev;
device_list[ndevs++] = osdev;
#endif
return (BUS_PROBE_DEFAULT);
}
/* Attach function is only called if the probe is successful */
static int
osspci_attach (device_t dev)
{
return 0;
}
/* Detach device. */
static int
osspci_detach (device_t dev)
{
oss_device_t *osdev;
int i;
for (i = 0; i < ndevs; i++)
{
osdev = device_list[i];
if (osdev->dip == dev)
{
if (device_get_state(dev) == DS_BUSY)
device_unbusy(dev);
if (!DRIVER_DETACH (osdev))
{
printf (DRIVER_NICK ": Unloading busy device\n");
return EBUSY;
}
osdev_delete (osdev);
}
}
return (0);
}
/* Called during system shutdown after sync. */
static int
osspci_shutdown (device_t dev)
{
printf ("Mypci shutdown!\n");
return (0);
}
Device suspend routine.
static int
osspci_suspend (device_t dev)
{
printf ("Mypci suspend!\n");
return (0);
}
Device resume routine.
static int
osspci_resume (device_t dev)
{
printf ("Mypci resume!\n");
return (0);
}
static device_method_t osspci_methods[] = {
/* Device interface */
DEVMETHOD (device_probe, osspci_probe),
DEVMETHOD (device_attach, osspci_attach),
DEVMETHOD (device_detach, osspci_detach),
DEVMETHOD (device_shutdown, osspci_shutdown),
DEVMETHOD (device_suspend, osspci_suspend),
DEVMETHOD (device_resume, osspci_resume),
{0, 0}
};
static devclass_t osspci_devclass;