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Add powerhook for wm(4), from George Michaelson <ggm AT apnic DOT net>

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This commit is contained in:
jmcneill 2006-06-20 01:16:23 +00:00
parent d106438030
commit 1404a243f2
1 changed files with 44 additions and 2 deletions
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46
sys/dev/pci/if_wm.c
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@ -1,4 +1,4 @@
/* $NetBSD: if_wm.c,v 1.122 2006/06/17 23:34:27 christos Exp $ */
/* $NetBSD: if_wm.c,v 1.123 2006/06/20 01:16:23 jmcneill Exp $ */
/*
* Copyright (c) 2001, 2002, 2003, 2004 Wasabi Systems, Inc.
@ -47,7 +47,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: if_wm.c,v 1.122 2006/06/17 23:34:27 christos Exp $");
__KERNEL_RCSID(0, "$NetBSD: if_wm.c,v 1.123 2006/06/20 01:16:23 jmcneill Exp $");
#include "bpfilter.h"
#include "rnd.h"
@ -230,6 +230,10 @@ struct wm_softc {
bus_dma_tag_t sc_dmat; /* bus DMA tag */
struct ethercom sc_ethercom; /* ethernet common data */
void *sc_sdhook; /* shutdown hook */
void *sc_powerhook; /* power hook */
pci_chipset_tag_t sc_pc;
pcitag_t sc_pcitag;
struct pci_conf_state sc_pciconf;
wm_chip_type sc_type; /* chip type */
int sc_flags; /* flags; see below */
@ -466,6 +470,7 @@ static int wm_init(struct ifnet *);
static void wm_stop(struct ifnet *, int);
static void wm_shutdown(void *);
static void wm_powerhook(int, void *);
static void wm_reset(struct wm_softc *);
static void wm_rxdrain(struct wm_softc *);
@ -797,6 +802,9 @@ wm_attach(struct device *parent, struct device *self, void *aux)
panic("wm_attach: impossible");
}
sc->sc_pc = pa->pa_pc;
sc->sc_pcitag = pa->pa_tag;
if (pci_dma64_available(pa))
sc->sc_dmat = pa->pa_dmat64;
else
@ -1425,6 +1433,11 @@ wm_attach(struct device *parent, struct device *self, void *aux)
if (sc->sc_sdhook == NULL)
aprint_error("%s: WARNING: unable to establish shutdown hook\n",
sc->sc_dev.dv_xname);
sc->sc_powerhook = powerhook_establish(wm_powerhook, sc);
if (sc->sc_powerhook == NULL)
aprint_error("%s: can't establish powerhook\n",
sc->sc_dev.dv_xname);
return;
/*
@ -1468,6 +1481,35 @@ wm_shutdown(void *arg)
wm_stop(&sc->sc_ethercom.ec_if, 1);
}
static void
wm_powerhook(int why, void *arg)
{
struct wm_softc *sc = arg;
struct ifnet *ifp = &sc->sc_ethercom.ec_if;
pci_chipset_tag_t pc = sc->sc_pc;
pcitag_t tag = sc->sc_pcitag;
switch (why) {
case PWR_SOFTSUSPEND:
wm_shutdown(sc);
break;
case PWR_SOFTRESUME:
ifp->if_flags &= ~IFF_RUNNING;
wm_init(ifp);
if (ifp->if_flags & IFF_RUNNING)
wm_start(ifp);
break;
case PWR_SUSPEND:
pci_conf_capture(pc, tag, &sc->sc_pciconf);
break;
case PWR_RESUME:
pci_conf_restore(pc, tag, &sc->sc_pciconf);
break;
}
return;
}
/*
* wm_tx_offload:
*