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/*
* (C) Copyright 2008 Dmitry Rakhchev, EmCraft Systems, rda@emcraft.com
*
* Developed for DENX Software Engineering GmbH
*
* See file CREDITS for list of people who contributed to this
* project.
*
* 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., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <post.h>
#include <common.h>
/*
* SYSMON test
*
* This test performs the system hardware monitoring.
* The test passes when all the following voltages and temperatures
* are within allowed ranges:
*
* Temperature -40 .. +85 C
* +5V +4.75 .. +5.25 V
* +5V standby +4.75 .. +5.25 V
*
* LCD backlight is not enabled if temperature values are not within
* allowed ranges (-30 .. + 80). The brightness of backlite can be
* controlled by setting "brightness" enviroment variable. Default value is 50%
*
* See the list of all parameters in the sysmon_table below
*/
#include <post.h>
#include <watchdog.h>
#include <i2c.h>
#if defined(CONFIG_VIDEO)
#include <mb862xx.h>
#endif
#if CONFIG_POST & CFG_POST_SYSMON
DECLARE_GLOBAL_DATA_PTR;
/* from dspic.c */
extern int dspic_read(ushort reg);
#define RELOC(x) if (x != NULL) x = (void *) ((ulong) (x) + gd->reloc_off)
typedef struct sysmon_s sysmon_t;
typedef struct sysmon_table_s sysmon_table_t;
static void sysmon_dspic_init (sysmon_t * this);
static int sysmon_dspic_read (sysmon_t * this, uint addr);
static void sysmon_backlight_disable (sysmon_table_t * this);
struct sysmon_s
{
uchar chip;
void (*init)(sysmon_t *);
int (*read)(sysmon_t *, uint);
};
static sysmon_t sysmon_dspic =
{CFG_I2C_DSPIC_IO_ADDR, sysmon_dspic_init, sysmon_dspic_read};
static sysmon_t * sysmon_list[] =
{
&sysmon_dspic,
NULL
};
struct sysmon_table_s
{
char * name;
char * unit_name;
sysmon_t * sysmon;
void (*exec_before)(sysmon_table_t *);
void (*exec_after)(sysmon_table_t *);
int unit_precision;
int unit_div;
int unit_min;
int unit_max;
uint val_mask;
uint val_min;
uint val_max;
int val_valid;
uint val_min_alt;
uint val_max_alt;
int val_valid_alt;
uint addr;
};
static sysmon_table_t sysmon_table[] =
{
{"Temperature", " C", &sysmon_dspic, NULL, sysmon_backlight_disable,
1, 1, -32768, 32767, 0xFFFF, 0x8000-40, 0x8000+85, 0,
0x8000-30, 0x8000+80, 0, 0x12BC},
{"+ 5 V", "V", &sysmon_dspic, NULL, NULL,
100, 1000, -0x8000, 0x7FFF, 0xFFFF, 0x8000+4750, 0x8000+5250, 0,
0x8000+4750, 0x8000+5250, 0, 0x12CA},
{"+ 5 V standby", "V", &sysmon_dspic, NULL, NULL,
100, 1000, -0x8000, 0x7FFF, 0xFFFF, 0x8000+4750, 0x8000+5250, 0,
0x8000+4750, 0x8000+5250, 0, 0x12C6},
};
static int sysmon_table_size = sizeof(sysmon_table) / sizeof(sysmon_table[0]);
int sysmon_init_f (void)
{
sysmon_t ** l;
for (l = sysmon_list; *l; l++)
(*l)->init(*l);
return 0;
}
void sysmon_reloc (void)
{
sysmon_t ** l;
sysmon_table_t * t;
for (l = sysmon_list; *l; l++) {
RELOC(*l);
RELOC((*l)->init);
RELOC((*l)->read);
}
for (t = sysmon_table; t < sysmon_table + sysmon_table_size; t ++) {
RELOC(t->exec_before);
RELOC(t->exec_after);
RELOC(t->sysmon);
}
}
static char *sysmon_unit_value (sysmon_table_t *s, uint val)
{
static char buf[32];
char *p, sign;
int decimal, frac;
int unit_val;
unit_val = s->unit_min + (s->unit_max - s->unit_min) * val / s->val_mask;
if (val == -1)
return "I/O ERROR";
if (unit_val < 0) {
sign = '-';
unit_val = -unit_val;
} else
sign = '+';
p = buf + sprintf(buf, "%c%2d", sign, unit_val / s->unit_div);
frac = unit_val % s->unit_div;
frac /= (s->unit_div / s->unit_precision);
decimal = s->unit_precision;
if (decimal != 1)
*p++ = '.';
for (decimal /= 10; decimal != 0; decimal /= 10)
*p++ = '0' + (frac / decimal) % 10;
strcpy(p, s->unit_name);
return buf;
}
static void sysmon_dspic_init (sysmon_t * this)
{
}
static int sysmon_dspic_read (sysmon_t * this, uint addr)
{
int res = dspic_read(addr);
/* To fit into the table range we should add 0x8000 */
return (res == -1) ? -1 : (res + 0x8000);
}
static void sysmon_backlight_disable (sysmon_table_t * this)
{
#if defined(CONFIG_VIDEO)
board_backlight_switch(this->val_valid_alt);
#endif
}
int sysmon_post_test (int flags)
{
int res = 0;
sysmon_table_t * t;
int val;
for (t = sysmon_table; t < sysmon_table + sysmon_table_size; t ++) {
if (t->exec_before)
t->exec_before(t);
val = t->sysmon->read(t->sysmon, t->addr);
if (val != -1) {
t->val_valid = val >= t->val_min && val <= t->val_max;
t->val_valid_alt = val >= t->val_min_alt && val <= t->val_max_alt;
} else {
t->val_valid = 0;
t->val_valid_alt = 0;
}
if (t->exec_after)
t->exec_after(t);
if ((!t->val_valid) || (flags & POST_MANUAL)) {
printf("%-17s = %-10s ", t->name, sysmon_unit_value(t, val));
printf("allowed range");
printf(" %-8s ..", sysmon_unit_value(t, t->val_min));
printf(" %-8s", sysmon_unit_value(t, t->val_max));
printf(" %s\n", t->val_valid ? "OK" : "FAIL");
}
if (!t->val_valid)
res = 1;
}
return res;
}
#endif /* CONFIG_POST & CFG_POST_SYSMON */
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