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sys/arm/broadcom/bcm2835/bcm2835_rng.c
| Show All 12 Lines | |||||
| } | } | ||||
| sysctl_ctx = device_get_sysctl_ctx(dev); | sysctl_ctx = device_get_sysctl_ctx(dev); | ||||
| sysctl_tree = device_get_sysctl_tree(dev); | sysctl_tree = device_get_sysctl_tree(dev); | ||||
| SYSCTL_ADD_LONG(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree), OID_AUTO, | SYSCTL_ADD_LONG(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree), OID_AUTO, | ||||
| "underrun", CTLFLAG_RD, &sc->sc_underrun, | "underrun", CTLFLAG_RD, &sc->sc_underrun, | ||||
| "Number of FIFO underruns"); | "Number of FIFO underruns"); | ||||
| SYSCTL_ADD_PROC(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree), OID_AUTO, | SYSCTL_ADD_PROC(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree), OID_AUTO, | ||||
| "2xspeed", CTLTYPE_INT | CTLFLAG_RW, sc, 0, | "2xspeed", CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, sc, 0, | ||||
| sysctl_bcm2835_rng_2xspeed, "I", "Enable RBG 2X SPEED"); | sysctl_bcm2835_rng_2xspeed, "I", "Enable RBG 2X SPEED"); | ||||
| SYSCTL_ADD_INT(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree), OID_AUTO, | SYSCTL_ADD_INT(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree), OID_AUTO, | ||||
| "stall_count", CTLFLAG_RW, &sc->sc_stall_count, | "stall_count", CTLFLAG_RW, &sc->sc_stall_count, | ||||
| RNG_STALL_COUNT_DEFAULT, "Number of underruns to assume RNG stall"); | RNG_STALL_COUNT_DEFAULT, "Number of underruns to assume RNG stall"); | ||||
| #ifdef BCM2835_RNG_DEBUG_REGISTERS | #ifdef BCM2835_RNG_DEBUG_REGISTERS | ||||
| SYSCTL_ADD_PROC(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree), OID_AUTO, | SYSCTL_ADD_PROC(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree), OID_AUTO, | ||||
| "dumpregs", CTLTYPE_STRING | CTLFLAG_RD, sc, 0, | "dumpregs", CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_NEEDGIANT, sc, 0, | ||||
| sysctl_bcm2835_rng_dump, "S", "Dump RNG registers"); | sysctl_bcm2835_rng_dump, "S", "Dump RNG registers"); | ||||
| #endif | #endif | ||||
| /* | /* | ||||
| * Schedule the initial harvesting one second from now, which should give the | * Schedule the initial harvesting one second from now, which should give the | ||||
| * hardware RNG plenty of time to generate the first random bytes. | * hardware RNG plenty of time to generate the first random bytes. | ||||
| */ | */ | ||||
| callout_reset(&sc->sc_rngto, hz, bcm2835_rng_harvest, sc); | callout_reset(&sc->sc_rngto, hz, bcm2835_rng_harvest, sc); | ||||
| Show All 12 Lines | |||||