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Restore PCI configuration space on resume.

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This commit is contained in:
jmcneill 2006-06-19 13:56:29 +00:00
parent 3e47be4df9
commit 052a8ad2ad
1 changed files with 16 additions and 6 deletions
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22
sys/dev/pci/if_fxp_pci.c
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@ -1,4 +1,4 @@
/* $NetBSD: if_fxp_pci.c,v 1.45 2006/06/17 23:34:27 christos Exp $ */
/* $NetBSD: if_fxp_pci.c,v 1.46 2006/06/19 13:56:29 jmcneill Exp $ */
/*-
* Copyright (c) 1997, 1998, 1999, 2000, 2001 The NetBSD Foundation, Inc.
@ -43,7 +43,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: if_fxp_pci.c,v 1.45 2006/06/17 23:34:27 christos Exp $");
__KERNEL_RCSID(0, "$NetBSD: if_fxp_pci.c,v 1.46 2006/06/19 13:56:29 jmcneill Exp $");
#include "rnd.h"
@ -90,6 +90,7 @@ struct fxp_pci_softc {
int psc_pwrmgmt_csr_reg; /* ACPI power management register */
pcireg_t psc_pwrmgmt_csr; /* ...and the contents at D0 */
struct pci_conf_state psc_pciconf; /* standard PCI configuration regs */
};
static int fxp_pci_match(struct device *, struct cfdata *, void *);
@ -99,7 +100,7 @@ static int fxp_pci_enable(struct fxp_softc *);
static void fxp_pci_disable(struct fxp_softc *);
static void fxp_pci_confreg_restore(struct fxp_pci_softc *psc);
static void fxp_pci_power(int why, void *arg);
static void fxp_pci_powerhook(int why, void *arg);
CFATTACH_DECL(fxp_pci, sizeof(struct fxp_pci_softc),
fxp_pci_match, fxp_pci_attach, NULL, NULL);
@ -239,12 +240,21 @@ fxp_pci_confreg_restore(struct fxp_pci_softc *psc)
* on a resume.
*/
static void
fxp_pci_power(int why, void *arg)
fxp_pci_powerhook(int why, void *arg)
{
struct fxp_pci_softc *psc = arg;
if (why == PWR_RESUME)
switch (why) {
case PWR_SUSPEND:
pci_conf_capture(psc->psc_pc, psc->psc_tag, &psc->psc_pciconf);
break;
case PWR_RESUME:
pci_conf_restore(psc->psc_pc, psc->psc_tag, &psc->psc_pciconf);
fxp_pci_confreg_restore(psc);
break;
}
return;
}
static void
@ -493,7 +503,7 @@ fxp_pci_attach(struct device *parent, struct device *self, void *aux)
fxp_disable(sc);
/* Add a suspend hook to restore PCI config state */
psc->psc_powerhook = powerhook_establish(fxp_pci_power, psc);
psc->psc_powerhook = powerhook_establish(fxp_pci_powerhook, psc);
if (psc->psc_powerhook == NULL)
aprint_error(
"%s: WARNING: unable to establish pci power hook\n",