linux/arch/powerpc/platforms/celleb/beat.c
Ishizaki Kou c347b7989e [POWERPC] Celleb: basic support
This patch adds base support for Celleb platform.

Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:21 +11:00

164 lines
3.3 KiB
C

/*
* Simple routines for Celleb/Beat
*
* (C) Copyright 2006-2007 TOSHIBA CORPORATION
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/err.h>
#include <linux/rtc.h>
#include <asm/hvconsole.h>
#include <asm/time.h>
#include "beat_wrapper.h"
#include "beat.h"
void beat_restart(char *cmd)
{
beat_shutdown_logical_partition(1);
}
void beat_power_off(void)
{
beat_shutdown_logical_partition(0);
}
u64 beat_halt_code = 0x1000000000000000UL;
void beat_halt(void)
{
beat_shutdown_logical_partition(beat_halt_code);
}
int beat_set_rtc_time(struct rtc_time *rtc_time)
{
u64 tim;
tim = mktime(rtc_time->tm_year+1900,
rtc_time->tm_mon+1, rtc_time->tm_mday,
rtc_time->tm_hour, rtc_time->tm_min, rtc_time->tm_sec);
if (beat_rtc_write(tim))
return -1;
return 0;
}
void beat_get_rtc_time(struct rtc_time *rtc_time)
{
u64 tim;
if (beat_rtc_read(&tim))
tim = 0;
to_tm(tim, rtc_time);
rtc_time->tm_year -= 1900;
rtc_time->tm_mon -= 1;
}
#define BEAT_NVRAM_SIZE 4096
ssize_t beat_nvram_read(char *buf, size_t count, loff_t *index)
{
unsigned int i;
unsigned long len;
char *p = buf;
if (*index >= BEAT_NVRAM_SIZE)
return -ENODEV;
i = *index;
if (i + count > BEAT_NVRAM_SIZE)
count = BEAT_NVRAM_SIZE - i;
for (; count != 0; count -= len) {
len = count;
if (len > BEAT_NVRW_CNT)
len = BEAT_NVRW_CNT;
if (beat_eeprom_read(i, len, p)) {
return -EIO;
}
p += len;
i += len;
}
*index = i;
return p - buf;
}
ssize_t beat_nvram_write(char *buf, size_t count, loff_t *index)
{
unsigned int i;
unsigned long len;
char *p = buf;
if (*index >= BEAT_NVRAM_SIZE)
return -ENODEV;
i = *index;
if (i + count > BEAT_NVRAM_SIZE)
count = BEAT_NVRAM_SIZE - i;
for (; count != 0; count -= len) {
len = count;
if (len > BEAT_NVRW_CNT)
len = BEAT_NVRW_CNT;
if (beat_eeprom_write(i, len, p)) {
return -EIO;
}
p += len;
i += len;
}
*index = i;
return p - buf;
}
ssize_t beat_nvram_get_size(void)
{
return BEAT_NVRAM_SIZE;
}
int beat_set_xdabr(unsigned long dabr)
{
if (beat_set_dabr(dabr, DABRX_KERNEL | DABRX_USER))
return -1;
return 0;
}
int64_t beat_get_term_char(u64 vterm, u64 *len, u64 *t1, u64 *t2)
{
u64 db[2];
s64 ret;
ret = beat_get_characters_from_console(vterm, len, (u8*)db);
if (ret == 0) {
*t1 = db[0];
*t2 = db[1];
}
return ret;
}
int64_t beat_put_term_char(u64 vterm, u64 len, u64 t1, u64 t2)
{
u64 db[2];
db[0] = t1;
db[1] = t2;
return beat_put_characters_to_console(vterm, len, (u8*)db);
}
EXPORT_SYMBOL(beat_get_term_char);
EXPORT_SYMBOL(beat_put_term_char);
EXPORT_SYMBOL(beat_halt_code);