diff options
Diffstat (limited to 'sys/dev/tpm')
| -rw-r--r-- | sys/dev/tpm/tpm20.c | 13 | ||||
| -rw-r--r-- | sys/dev/tpm/tpm_tis_core.c | 7 |
2 files changed, 17 insertions, 3 deletions
diff --git a/sys/dev/tpm/tpm20.c b/sys/dev/tpm/tpm20.c index 876dd0bcc40d..067e7ccae8f9 100644 --- a/sys/dev/tpm/tpm20.c +++ b/sys/dev/tpm/tpm20.c @@ -25,8 +25,8 @@ * POSSIBILITY OF SUCH DAMAGE. */ -#include <sys/cdefs.h> #include <sys/random.h> +#include <dev/random/randomdev.h> #include "tpm20.h" @@ -184,6 +184,13 @@ tpm20_ioctl(struct cdev *dev, u_long cmd, caddr_t data, return (ENOTTY); } +#ifdef TPM_HARVEST +static const struct random_source random_tpm = { + .rs_ident = "TPM", + .rs_source = RANDOM_PURE_TPM, +}; +#endif + int tpm20_init(struct tpm_sc *sc) { @@ -206,7 +213,7 @@ tpm20_init(struct tpm_sc *sc) tpm20_release(sc); #ifdef TPM_HARVEST - random_harvest_register_source(RANDOM_PURE_TPM); + random_source_register(&random_tpm); TIMEOUT_TASK_INIT(taskqueue_thread, &sc->harvest_task, 0, tpm20_harvest, sc); taskqueue_enqueue_timeout(taskqueue_thread, &sc->harvest_task, 0); @@ -223,7 +230,7 @@ tpm20_release(struct tpm_sc *sc) #ifdef TPM_HARVEST if (device_is_attached(sc->dev)) taskqueue_drain_timeout(taskqueue_thread, &sc->harvest_task); - random_harvest_deregister_source(RANDOM_PURE_TPM); + random_source_deregister(&random_tpm); #endif if (sc->buf != NULL) diff --git a/sys/dev/tpm/tpm_tis_core.c b/sys/dev/tpm/tpm_tis_core.c index d8421f8156c9..4159de4daf3b 100644 --- a/sys/dev/tpm/tpm_tis_core.c +++ b/sys/dev/tpm/tpm_tis_core.c @@ -97,6 +97,7 @@ tpmtis_attach(device_t dev) { struct tpm_sc *sc; int result; + int poll = 0; sc = device_get_softc(dev); sc->dev = dev; @@ -105,6 +106,12 @@ tpmtis_attach(device_t dev) sx_init(&sc->dev_lock, "TPM driver lock"); sc->buf = malloc(TPM_BUFSIZE, M_TPM20, M_WAITOK); + resource_int_value("tpm", device_get_unit(dev), "use_polling", &poll); + if (poll != 0) { + device_printf(dev, "Using poll method to get TPM operation status \n"); + goto skip_irq; + } + sc->irq_rid = 0; sc->irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid, RF_ACTIVE | RF_SHAREABLE); |