int
ichsmb_detach(device_t dev)
{
const sc_p sc = device_get_softc(dev);
int error;
error = bus_generic_detach(dev);
if (error)
return (error);
device_delete_child(dev, sc->smb);
ichsmb_release_resources(sc);
mtx_destroy(&sc->mutex);
return 0;
}
static int
ichsmb_pci_attach(device_t dev)
{
const sc_p sc = device_get_softc(dev);
int error;
/* Initialize private state */
bzero(sc, sizeof(*sc));
sc->ich_cmd = -1;
sc->dev = dev;
/* Allocate an I/O range */
sc->io_rid = ICH_SMB_BASE;
sc->io_res = bus_alloc_resource_anywhere(dev, SYS_RES_IOPORT,
&sc->io_rid, 16, RF_ACTIVE);
if (sc->io_res == NULL)
sc->io_res = bus_alloc_resource_anywhere(dev, SYS_RES_IOPORT,
&sc->io_rid, 32, RF_ACTIVE);
if (sc->io_res == NULL) {
device_printf(dev, "can't map I/O\n");
error = ENXIO;
goto fail;
}
/* Allocate interrupt */
sc->irq_rid = 0;
sc->irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ,
&sc->irq_rid, RF_ACTIVE | RF_SHAREABLE);
if (sc->irq_res == NULL) {
device_printf(dev, "can't get IRQ\n");
error = ENXIO;
goto fail;
}
/* Enable device */
pci_write_config(dev, ICH_HOSTC, ICH_HOSTC_HST_EN, 1);
/* Done */
error = ichsmb_attach(dev);
if (error)
goto fail;
return (0);
fail:
/* Attach failed, release resources */
ichsmb_release_resources(sc);
return (error);
}
static int
ichsmb_pci_attach(device_t dev)
{
const sc_p sc = device_get_softc(dev);
u_int32_t cmd;
int error;
/* Initialize private state */
bzero(sc, sizeof(*sc));
sc->ich_cmd = -1;
sc->dev = dev;
/* Allocate an I/O range */
sc->io_rid = ICH_SMB_BASE;
sc->io_res = bus_alloc_resource(dev, SYS_RES_IOPORT,
&sc->io_rid, 0, ~0, 16, RF_ACTIVE);
if (sc->io_res == NULL) {
log(LOG_ERR, "%s: can't map I/O\n", device_get_nameunit(dev));
error = ENXIO;
goto fail;
}
sc->io_bst = rman_get_bustag(sc->io_res);
sc->io_bsh = rman_get_bushandle(sc->io_res);
/* Allocate interrupt */
sc->irq_rid = 0;
sc->irq_res = bus_alloc_resource(dev, SYS_RES_IRQ,
&sc->irq_rid, 0, ~0, 1, RF_ACTIVE | RF_SHAREABLE);
if (sc->irq_res == NULL) {
log(LOG_ERR, "%s: can't get IRQ\n", device_get_nameunit(dev));
error = ENXIO;
goto fail;
}
/* Set up interrupt handler */
error = bus_setup_intr(dev, sc->irq_res, INTR_TYPE_MISC,
ichsmb_device_intr, sc, &sc->irq_handle);
if (error != 0) {
log(LOG_ERR, "%s: can't setup irq\n", device_get_nameunit(dev));
goto fail;
}
/* Enable I/O mapping */
cmd = pci_read_config(dev, PCIR_COMMAND, 4);
cmd |= PCIM_CMD_PORTEN;
pci_write_config(dev, PCIR_COMMAND, cmd, 4);
cmd = pci_read_config(dev, PCIR_COMMAND, 4);
if ((cmd & PCIM_CMD_PORTEN) == 0) {
log(LOG_ERR, "%s: can't enable memory map\n",
device_get_nameunit(dev));
error = ENXIO;
goto fail;
}
/* Enable device */
pci_write_config(dev, ICH_HOSTC, ICH_HOSTC_HST_EN, 1);
/* Done */
return (ichsmb_attach(dev));
fail:
/* Attach failed, release resources */
ichsmb_release_resources(sc);
return (error);
}