1 /* $NetBSD: vrtc.c,v 1.3 2021/01/04 14:48:52 thorpej Exp $ */ 2 /* $OpenBSD: vrtc.c,v 1.1 2008/03/08 19:19:43 kettenis Exp $ */ 3 /* 4 * Copyright (c) 2008 Mark Kettenis 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19 #include <sys/param.h> 20 #include <sys/device.h> 21 #include <sys/kmem.h> 22 #include <sys/systm.h> 23 24 #include <machine/autoconf.h> 25 #include <machine/hypervisor.h> 26 #include <machine/openfirm.h> 27 28 #include <dev/clock_subr.h> 29 #include <sparc64/dev/vbusvar.h> 30 31 extern todr_chip_handle_t todr_handle; 32 33 int vrtc_match(device_t, cfdata_t, void *); 34 void vrtc_attach(device_t, device_t, void *); 35 36 CFATTACH_DECL_NEW(vrtc, sizeof(device_t), 37 vrtc_match, vrtc_attach, NULL, NULL); 38 39 int vrtc_gettime(todr_chip_handle_t, struct timeval *); 40 int vrtc_settime(todr_chip_handle_t, struct timeval *); 41 42 int 43 vrtc_match(device_t parent, cfdata_t match, void *aux) 44 { 45 struct vbus_attach_args *va = aux; 46 47 if (strcmp(va->va_name, "rtc") == 0) 48 return (1); 49 50 return (0); 51 } 52 53 void 54 vrtc_attach(device_t parent, device_t self, void *aux) 55 { 56 todr_chip_handle_t handle; 57 58 printf("\n"); 59 60 handle = kmem_alloc(sizeof(struct todr_chip_handle), KM_SLEEP); 61 handle->cookie = self; 62 handle->todr_gettime = vrtc_gettime; 63 handle->todr_settime = vrtc_settime; 64 65 handle->bus_cookie = NULL; 66 handle->todr_setwen = NULL; 67 68 todr_attach(handle); 69 } 70 71 int 72 vrtc_gettime(todr_chip_handle_t handle, struct timeval *tv) 73 { 74 u_int64_t tod; 75 76 if (hv_tod_get(&tod) != H_EOK) 77 return (1); 78 79 tv->tv_sec = tod; 80 tv->tv_usec = 0; 81 return (0); 82 } 83 84 int 85 vrtc_settime(todr_chip_handle_t handle, struct timeval *tv) 86 { 87 if (hv_tod_set(tv->tv_sec) != H_EOK) 88 return (1); 89 90 return (0); 91 } 92