diff options
| -rw-r--r-- | sys/arch/sparc64/dev/prtc.c | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/sys/arch/sparc64/dev/prtc.c b/sys/arch/sparc64/dev/prtc.c new file mode 100644 index 00000000000..a8779941b08 --- /dev/null +++ b/sys/arch/sparc64/dev/prtc.c @@ -0,0 +1,100 @@ +/* $OpenBSD: prtc.c,v 1.1 2008/03/13 22:46:16 kettenis Exp $ */ + +/* + * Copyright (c) 2008 Mark Kettenis + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +/* + * Driver to get the time-of-day from the PROM for machines that don't + * have a hardware real-time clock, like the Enterprise 10000, + * Fire 12K and Fire 15K. + */ + +#include <sys/param.h> +#include <sys/device.h> +#include <sys/malloc.h> +#include <sys/systm.h> + +#include <machine/autoconf.h> +#include <machine/openfirm.h> + +#include <dev/clock_subr.h> + +extern todr_chip_handle_t todr_handle; + +int prtc_match(struct device *, void *, void *); +void prtc_attach(struct device *, struct device *, void *); + +struct cfattach prtc_ca = { + sizeof(struct device), prtc_match, prtc_attach +}; + +struct cfdriver prtc_cd = { + NULL, "prtc", DV_DULL +}; + +int prtc_gettime(todr_chip_handle_t, struct timeval *); +int prtc_settime(todr_chip_handle_t, struct timeval *); + +int +prtc_match(struct device *parent, void *match, void *aux) +{ + struct mainbus_attach_args *ma = aux; + + if (strcmp(ma->ma_name, "prtc") == 0) + return (1); + + return (0); +} + +void +prtc_attach(struct device *parent, struct device *self, void *aux) +{ + todr_chip_handle_t handle; + + printf("\n"); + + handle = malloc(sizeof(struct todr_chip_handle), M_DEVBUF, M_NOWAIT); + if (handle == NULL) + panic("couldn't allocate todr_handle"); + + handle->cookie = self; + handle->todr_gettime = prtc_gettime; + handle->todr_settime = prtc_settime; + + handle->bus_cookie = NULL; + handle->todr_setwen = NULL; + todr_handle = handle; +} + +int +prtc_gettime(todr_chip_handle_t handle, struct timeval *tv) +{ + char cmd[32]; + u_int32_t tod = 0; + + snprintf(cmd, sizeof(cmd), "h# %08x unix-gettod", &tod); + OF_interpret(cmd, 0); + + tv->tv_sec = tod; + tv->tv_usec = 0; + return (0); +} + +int +prtc_settime(todr_chip_handle_t handle, struct timeval *tv) +{ + return (0); +} |