From f84dc56090d055077b4c9bc222e665b20bf22094 Mon Sep 17 00:00:00 2001 From: Vladimir 'phcoder' Serbinenko Date: Sun, 7 Feb 2010 22:56:25 +0100 Subject: [PATCH] Initial implementation of ofwclock --- ChangeLog.ofwclock | 15 ++++ conf/powerpc-ieee1275.rmk | 17 +++++ conf/sparc64-ieee1275.rmk | 17 +++++ lib/ieee1275/datetime.c | 142 ++++++++++++++++++++++++++++++++++++++ 4 files changed, 191 insertions(+) create mode 100644 ChangeLog.ofwclock create mode 100644 lib/ieee1275/datetime.c diff --git a/ChangeLog.ofwclock b/ChangeLog.ofwclock new file mode 100644 index 000000000..1cdd99cd4 --- /dev/null +++ b/ChangeLog.ofwclock @@ -0,0 +1,15 @@ +2010-02-07 Vladimir Serbinenko + + * conf/powerpc-ieee1275.rmk (pkglib_MODULES): Add datetime.mod, + date.mod, datehook.mod. + (datetime_mod_SOURCES): New variable. + (datetime_mod_CFLAGS): Likewise. + (datetime_mod_LDFLAGS): Likewise. + (date_mod_SOURCES): Likewise. + (date_mod_CFLAGS): Likewise. + (date_mod_LDFLAGS): Likewise. + (datehook_mod_SOURCES): Likewise. + (datehook_mod_CFLAGS): Likewise. + (datehook_mod_LDFLAGS): Likewise. + * conf/sparc64-ieee1275.rmk: Likewise. + * lib/ieee1275/datetime.c: New file. diff --git a/conf/powerpc-ieee1275.rmk b/conf/powerpc-ieee1275.rmk index 8622293ab..73e56e66f 100644 --- a/conf/powerpc-ieee1275.rmk +++ b/conf/powerpc-ieee1275.rmk @@ -105,4 +105,21 @@ lsmmap_mod_SOURCES = commands/lsmmap.c lsmmap_mod_CFLAGS = $(COMMON_CFLAGS) lsmmap_mod_LDFLAGS = $(COMMON_LDFLAGS) +pkglib_MODULES += datetime.mod date.mod datehook.mod + +# For datetime.mod +datetime_mod_SOURCES = lib/ieee1275/datetime.c +datetime_mod_CFLAGS = $(COMMON_CFLAGS) +datetime_mod_LDFLAGS = $(COMMON_LDFLAGS) + +# For date.mod +date_mod_SOURCES = commands/date.c +date_mod_CFLAGS = $(COMMON_CFLAGS) +date_mod_LDFLAGS = $(COMMON_LDFLAGS) + +# For datehook.mod +datehook_mod_SOURCES = hook/datehook.c +datehook_mod_CFLAGS = $(COMMON_CFLAGS) +datehook_mod_LDFLAGS = $(COMMON_LDFLAGS) + include $(srcdir)/conf/common.mk diff --git a/conf/sparc64-ieee1275.rmk b/conf/sparc64-ieee1275.rmk index befc7dce5..6210826e2 100644 --- a/conf/sparc64-ieee1275.rmk +++ b/conf/sparc64-ieee1275.rmk @@ -133,4 +133,21 @@ lsmmap_mod_SOURCES = commands/lsmmap.c lsmmap_mod_CFLAGS = $(COMMON_CFLAGS) lsmmap_mod_LDFLAGS = $(COMMON_LDFLAGS) +pkglib_MODULES += datetime.mod date.mod datehook.mod + +# For datetime.mod +datetime_mod_SOURCES = lib/ieee1275/datetime.c +datetime_mod_CFLAGS = $(COMMON_CFLAGS) +datetime_mod_LDFLAGS = $(COMMON_LDFLAGS) + +# For date.mod +date_mod_SOURCES = commands/date.c +date_mod_CFLAGS = $(COMMON_CFLAGS) +date_mod_LDFLAGS = $(COMMON_LDFLAGS) + +# For datehook.mod +datehook_mod_SOURCES = hook/datehook.c +datehook_mod_CFLAGS = $(COMMON_CFLAGS) +datehook_mod_LDFLAGS = $(COMMON_LDFLAGS) + include $(srcdir)/conf/common.mk diff --git a/lib/ieee1275/datetime.c b/lib/ieee1275/datetime.c new file mode 100644 index 000000000..aaf17b0fa --- /dev/null +++ b/lib/ieee1275/datetime.c @@ -0,0 +1,142 @@ +/* kern/cmos_datetime.c - CMOS datetime function. + * + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2008,2009 Free Software Foundation, Inc. + * + * GRUB is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * GRUB is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GRUB. If not, see . + */ + +#include +#include +#include + +static char *rtc = 0; + +static void +find_rtc (void) +{ + auto int hook (struct grub_ieee1275_devalias *alias); + int hook (struct grub_ieee1275_devalias *alias) + { + if (grub_strcmp (alias->type, "rtc") == 0) + { + grub_dprintf ("datetime", "Found RTC %s\n", alias->name); + rtc = grub_strdup (alias->name); + return 1; + } + return 0; + } + + grub_ieee1275_devices_iterate (hook); +} + +grub_err_t +grub_get_datetime (struct grub_datetime *datetime) +{ + struct get_time_args + { + struct grub_ieee1275_common_hdr common; + grub_ieee1275_cell_t method; + grub_ieee1275_cell_t device; + grub_ieee1275_cell_t catch_result; + grub_ieee1275_cell_t year; + grub_ieee1275_cell_t month; + grub_ieee1275_cell_t day; + grub_ieee1275_cell_t hour; + grub_ieee1275_cell_t minute; + grub_ieee1275_cell_t second; + } + args; + int status; + grub_ieee1275_ihandle_t ihandle; + + if (!rtc) + find_rtc (); + if (!rtc) + return grub_error (GRUB_ERR_IO, "no RTC found"); + + status = grub_ieee1275_open (rtc, &ihandle); + if (status == -1) + return grub_error (GRUB_ERR_IO, "couldn't open RTC"); + + INIT_IEEE1275_COMMON (&args.common, "call-method", 2, 7); + args.device = (grub_ieee1275_cell_t) ihandle; + args.method = (grub_ieee1275_cell_t) "get-time"; + + status = IEEE1275_CALL_ENTRY_FN (&args); + + grub_ieee1275_close (ihandle); + + if (status == -1) + return grub_error (GRUB_ERR_IO, "get-time failed"); + + datetime->year = args.year; + datetime->month = args.month; + datetime->day = args.day; + datetime->hour = args.hour; + datetime->minute = args.minute; + datetime->second = args.second; + + return GRUB_ERR_NONE; +} + +grub_err_t +grub_set_datetime (struct grub_datetime *datetime) +{ + struct get_time_args + { + struct grub_ieee1275_common_hdr common; + grub_ieee1275_cell_t method; + grub_ieee1275_cell_t device; + grub_ieee1275_cell_t year; + grub_ieee1275_cell_t month; + grub_ieee1275_cell_t day; + grub_ieee1275_cell_t hour; + grub_ieee1275_cell_t minute; + grub_ieee1275_cell_t second; + grub_ieee1275_cell_t catch_result; + } + args; + int status; + grub_ieee1275_ihandle_t ihandle; + + if (!rtc) + find_rtc (); + if (!rtc) + return grub_error (GRUB_ERR_IO, "no RTC found"); + + status = grub_ieee1275_open (rtc, &ihandle); + if (status == -1) + return grub_error (GRUB_ERR_IO, "couldn't open RTC"); + + INIT_IEEE1275_COMMON (&args.common, "call-method", 8, 1); + args.device = (grub_ieee1275_cell_t) ihandle; + args.method = (grub_ieee1275_cell_t) "set-time"; + + args.year = datetime->year; + args.month = datetime->month; + args.day = datetime->day; + args.hour = datetime->hour; + args.minute = datetime->minute; + args.second = datetime->second; + + status = IEEE1275_CALL_ENTRY_FN (&args); + + grub_ieee1275_close (ihandle); + + if (status == -1) + return grub_error (GRUB_ERR_IO, "set-time failed"); + + return GRUB_ERR_NONE; +}