Differential D19620 Diff 55377 head/sys/dev/tpm/tpm_crb.c

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head/sys/dev/tpm/tpm_crb.c

Show First 20 Lines • Show All 159 Lines • ▼ Show 20 Lines	tpmcrb_attach(device_t dev)

sc->mem_rid = 0;		sc->mem_rid = 0;
sc->mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &sc->mem_rid,		sc->mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &sc->mem_rid,
RF_ACTIVE);		RF_ACTIVE);
if (sc->mem_res == NULL)		if (sc->mem_res == NULL)
return (ENXIO);		return (ENXIO);

if(!tpmcrb_request_locality(sc, 0)) {		if(!tpmcrb_request_locality(sc, 0)) {
tpmcrb_detach(dev);		bus_release_resource(dev, SYS_RES_MEMORY,
		sc->mem_rid, sc->mem_res);
return (ENXIO);		return (ENXIO);
}		}

/*		/*
* Disable all interrupts for now, since I don't have a device that		* Disable all interrupts for now, since I don't have a device that
* works in CRB mode and supports them.		* works in CRB mode and supports them.
*/		*/
AND4(sc, TPM_CRB_INT_ENABLE, ~TPM_CRB_INT_ENABLE_BIT);		AND4(sc, TPM_CRB_INT_ENABLE, ~TPM_CRB_INT_ENABLE_BIT);
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}		}

static int		static int
tpmcrb_detach(device_t dev)		tpmcrb_detach(device_t dev)
{		{
struct tpm_sc *sc;		struct tpm_sc *sc;

sc = device_get_softc(dev);		sc = device_get_softc(dev);
		tpm20_release(sc);

if (sc->mem_res != NULL)		if (sc->mem_res != NULL)
bus_release_resource(dev, SYS_RES_MEMORY,		bus_release_resource(dev, SYS_RES_MEMORY,
sc->mem_rid, sc->mem_res);		sc->mem_rid, sc->mem_res);

tpm20_release(sc);
return (0);		return (0);
}		}

static bool		static bool
tpm_wait_for_u32(struct tpm_sc *sc, bus_size_t off, uint32_t mask, uint32_t val,		tpm_wait_for_u32(struct tpm_sc *sc, bus_size_t off, uint32_t mask, uint32_t val,
int32_t timeout)		int32_t timeout)
{		{

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