static int
bt_pci_probe(device_t dev)
{
switch (pci_get_devid(dev)) {
case PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER:
case PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER_NC:
{
struct bt_softc *bt = device_get_softc(dev);
pci_info_data_t pci_info;
int error;
error = bt_pci_alloc_resources(dev);
if (error)
return (error);
/*
* Determine if an ISA compatible I/O port has been
* enabled. If so, record the port so it will not
* be probed by our ISA probe. If the PCI I/O port
* was not set to the compatibility port, disable it.
*/
error = bt_cmd(bt, BOP_INQUIRE_PCI_INFO,
/*param*/NULL, /*paramlen*/0,
(u_int8_t*)&pci_info, sizeof(pci_info),
DEFAULT_CMD_TIMEOUT);
if (error == 0
&& pci_info.io_port < BIO_DISABLED) {
bt_mark_probed_bio(pci_info.io_port);
if (rman_get_start(bt->port) !=
bt_iop_from_bio(pci_info.io_port)) {
u_int8_t new_addr;
new_addr = BIO_DISABLED;
bt_cmd(bt, BOP_MODIFY_IO_ADDR,
/*param*/&new_addr,
/*paramlen*/1, /*reply_buf*/NULL,
/*reply_len*/0,
DEFAULT_CMD_TIMEOUT);
}
}
bt_pci_release_resources(dev);
device_set_desc(dev, "Buslogic Multi-Master SCSI Host Adapter");
return (0);
}
default:
break;
}
return (ENXIO);
}
/*
* Check if the device can be found at the port given
* and if so, set it up ready for further work
* as an argument, takes the isa_device structure from
* autoconf.c
*/
static int
bt_isa_probe(device_t dev)
{
/*
* find unit and check we have that many defined
*/
int port_index;
int max_port_index;
/* No pnp support */
if (isa_get_vendorid(dev))
return (ENXIO);
port_index = 0;
max_port_index = BT_NUM_ISAPORTS - 1;
/*
* Bound our board search if the user has
* specified an exact port.
*/
bt_find_probe_range(isa_get_port(dev), &port_index, &max_port_index);
if (port_index < 0)
return (ENXIO);
/* Attempt to find an adapter */
for (;port_index <= max_port_index; port_index++) {
struct bt_probe_info info;
u_int ioport;
ioport = bt_iop_from_bio(port_index);
/*
* Ensure this port has not already been claimed already
* by a PCI, EISA or ISA adapter.
*/
if (bt_check_probed_iop(ioport) != 0)
continue;
/* Initialise the softc for use during probing */
if (bt_isa_alloc_resources(dev, ioport,
ioport + BT_NREGS -1) != 0)
continue;
/* We're going to attempt to probe it now, so mark it probed */
bt_mark_probed_bio(port_index);
if (bt_port_probe(dev, &info) != 0) {
if (bootverbose)
kprintf("bt_isa_probe: Probe failed at 0x%x\n",
ioport);
bt_isa_release_resources(dev);
continue;
}
bt_isa_release_resources(dev);
bus_set_resource(dev, SYS_RES_DRQ, 0, info.drq, 1, -1);
bus_set_resource(dev, SYS_RES_IRQ, 0, info.irq, 1,
machintr_legacy_intr_cpuid(info.irq));
return (0);
}
return (ENXIO);
}
