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Make ichsmb(4) child device handling properly.

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This commit is contained in:
Takanori Watanabe 2005-06-10 16:12:43 +00:00
parent 2cc12aded0
commit 2e6e32da7b
3 changed files with 31 additions and 8 deletions
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30
sys/dev/ichsmb/ichsmb.c
View file

@ -96,14 +96,6 @@ static int ichsmb_wait(sc_p sc);
int
ichsmb_probe(device_t dev)
{
device_t smb;
/* Add child: an instance of the "smbus" device */
if ((smb = device_add_child(dev, DRIVER_SMBUS, -1)) == NULL) {
log(LOG_ERR, "%s: no \"%s\" child found\n",
device_get_nameunit(dev), DRIVER_SMBUS);
return (ENXIO);
}
return (BUS_PROBE_DEFAULT);
}
@ -116,6 +108,14 @@ ichsmb_attach(device_t dev)
{
const sc_p sc = device_get_softc(dev);
int error;
device_t smb;
/* Add child: an instance of the "smbus" device */
if ((smb = device_add_child(dev, DRIVER_SMBUS, -1)) == NULL) {
log(LOG_ERR, "%s: no \"%s\" child found\n",
device_get_nameunit(dev), DRIVER_SMBUS);
return (ENXIO);
}
/* Clear interrupt conditions */
bus_space_write_1(sc->io_bst, sc->io_bsh, ICH_HST_STA, 0xff);
@ -675,3 +675,17 @@ ichsmb_release_resources(sc_p sc)
}
}
int ichsmb_detach(device_t dev)
{
#if 0
const sc_p sc = device_get_softc(dev);
bus_generic_detach(dev);
device_delete_child(dev, sc->smb);
ichsmb_release_resources(sc);
return 0;
#else
/*smbus drivers don't handle detach child properly*/
return EBUSY;
#endif
}

7
sys/dev/ichsmb/ichsmb_pci.c
View file

@ -80,12 +80,17 @@ __FBSDID("$FreeBSD$");
/* Internal functions */
static int ichsmb_pci_probe(device_t dev);
static int ichsmb_pci_attach(device_t dev);
/*Use generic one for now*/
#if 0
static int ichsmb_pci_detach(device_t dev);
#endif
/* Device methods */
static device_method_t ichsmb_pci_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, ichsmb_pci_probe),
DEVMETHOD(device_attach, ichsmb_pci_attach),
DEVMETHOD(device_detach, ichsmb_detach),
/* Bus methods */
DEVMETHOD(bus_print_child, bus_generic_print_child),
@ -224,6 +229,8 @@ fail:
return (error);
}
MODULE_DEPEND(ichsmb, pci, 1, 1, 1);
MODULE_DEPEND(ichsmb, smbus, SMBUS_MINVER, SMBUS_PREFVER, SMBUS_MAXVER);
MODULE_VERSION(ichsmb, 1);
;

2
sys/dev/ichsmb/ichsmb_var.h
View file

@ -48,6 +48,7 @@ struct ichsmb_softc {
/* Device/bus stuff */
device_t dev; /* this device */
device_t smb; /* smb device */
struct resource *io_res; /* i/o port resource */
int io_rid; /* i/o port bus id */
bus_space_tag_t io_bst; /* bus space tag */
@ -85,6 +86,7 @@ extern void ichsmb_device_intr(void *cookie);
extern void ichsmb_release_resources(sc_p sc);
extern int ichsmb_probe(device_t dev);
extern int ichsmb_attach(device_t dev);
extern int ichsmb_detach(device_t dev);
#endif /* _DEV_ICHSMB_ICHSMB_VAR_H */