2 * (C) Copyright 2008 Dmitry Rakhchev, EmCraft Systems, rda@emcraft.com
4 * Developed for DENX Software Engineering GmbH
6 * See file CREDITS for list of people who contributed to this
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License as
11 * published by the Free Software Foundation; either version 2 of
12 * the License, or (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
33 * This test performs the system hardware monitoring.
34 * The test passes when all the following voltages and temperatures
35 * are within allowed ranges:
37 * Temperature -40 .. +85 C
38 * +5V +4.75 .. +5.25 V
39 * +5V standby +4.75 .. +5.25 V
41 * LCD backlight is not enabled if temperature values are not within
42 * allowed ranges (-30 .. + 80). The brightness of backlite can be
43 * controlled by setting "brightness" enviroment variable. Default value is 50%
45 * See the list of all parameters in the sysmon_table below
52 #if defined(CONFIG_VIDEO)
56 #if CONFIG_POST & CFG_POST_SYSMON
58 DECLARE_GLOBAL_DATA_PTR;
61 extern int dspic_read(ushort reg);
63 #define RELOC(x) if (x != NULL) x = (void *) ((ulong) (x) + gd->reloc_off)
65 typedef struct sysmon_s sysmon_t;
66 typedef struct sysmon_table_s sysmon_table_t;
68 static void sysmon_dspic_init (sysmon_t * this);
69 static int sysmon_dspic_read (sysmon_t * this, uint addr);
70 static void sysmon_backlight_disable (sysmon_table_t * this);
75 void (*init)(sysmon_t *);
76 int (*read)(sysmon_t *, uint);
79 static sysmon_t sysmon_dspic =
80 {CFG_I2C_DSPIC_IO_ADDR, sysmon_dspic_init, sysmon_dspic_read};
82 static sysmon_t * sysmon_list[] =
93 void (*exec_before)(sysmon_table_t *);
94 void (*exec_after)(sysmon_table_t *);
110 static sysmon_table_t sysmon_table[] =
112 {"Temperature", " C", &sysmon_dspic, NULL, sysmon_backlight_disable,
113 1, 1, -32768, 32767, 0xFFFF, 0x8000-40, 0x8000+85, 0,
114 0x8000-30, 0x8000+80, 0, 0x12BC},
116 {"+ 5 V", "V", &sysmon_dspic, NULL, NULL,
117 100, 1000, -0x8000, 0x7FFF, 0xFFFF, 0x8000+4750, 0x8000+5250, 0,
118 0x8000+4750, 0x8000+5250, 0, 0x12CA},
120 {"+ 5 V standby", "V", &sysmon_dspic, NULL, NULL,
121 100, 1000, -0x8000, 0x7FFF, 0xFFFF, 0x8000+4750, 0x8000+5250, 0,
122 0x8000+4750, 0x8000+5250, 0, 0x12C6},
124 static int sysmon_table_size = sizeof(sysmon_table) / sizeof(sysmon_table[0]);
126 int sysmon_init_f (void)
130 for (l = sysmon_list; *l; l++)
136 void sysmon_reloc (void)
141 for (l = sysmon_list; *l; l++) {
147 for (t = sysmon_table; t < sysmon_table + sysmon_table_size; t ++) {
148 RELOC(t->exec_before);
149 RELOC(t->exec_after);
154 static char *sysmon_unit_value (sysmon_table_t *s, uint val)
162 s->unit_min + (s->unit_max - s->unit_min) * val / s->val_mask;
169 unit_val = -unit_val;
173 p = buf + sprintf(buf, "%c%2d", sign, unit_val / s->unit_div);
176 frac = unit_val % s->unit_div;
178 frac /= (s->unit_div / s->unit_precision);
180 decimal = s->unit_precision;
184 for (decimal /= 10; decimal != 0; decimal /= 10)
185 *p++ = '0' + (frac / decimal) % 10;
186 strcpy(p, s->unit_name);
191 static void sysmon_dspic_init (sysmon_t * this)
195 static int sysmon_dspic_read (sysmon_t * this, uint addr)
197 int res = dspic_read(addr);
199 /* To fit into the table range we should add 0x8000 */
200 return (res == -1) ? -1 : (res + 0x8000);
203 static void sysmon_backlight_disable (sysmon_table_t * this)
205 #if defined(CONFIG_VIDEO)
206 board_backlight_switch(this->val_valid_alt);
210 int sysmon_post_test (int flags)
216 for (t = sysmon_table; t < sysmon_table + sysmon_table_size; t ++) {
220 val = t->sysmon->read(t->sysmon, t->addr);
222 t->val_valid = val >= t->val_min && val <= t->val_max;
223 t->val_valid_alt = val >= t->val_min_alt && val <= t->val_max_alt;
226 t->val_valid_alt = 0;
232 if ((!t->val_valid) || (flags & POST_MANUAL)) {
233 printf("%-17s = %-10s ", t->name, sysmon_unit_value(t, val));
234 printf("allowed range");
235 printf(" %-8s ..", sysmon_unit_value(t, t->val_min));
236 printf(" %-8s", sysmon_unit_value(t, t->val_max));
237 printf(" %s\n", t->val_valid ? "OK" : "FAIL");
247 #endif /* CONFIG_POST & CFG_POST_SYSMON */
248 #endif /* CONFIG_POST */