-/*
- * (C) Copyright 2003
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#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:
- *
- * Board temperature
- * Front temperature
- * +3.3V CPU logic
- * +5V logic
- * +12V PCMCIA
- * +12V CCFL
- * +5V standby
- *
- * CCFL is not enabled if temperature values are not within allowed ranges
- *
- * See the list off all parameters in the sysmon_table below
- */
-
-#include <post.h>
-#include <watchdog.h>
-#include <i2c.h>
-
-#if CONFIG_POST & CONFIG_SYS_POST_SYSMON
-
-DECLARE_GLOBAL_DATA_PTR;
-
-static int sysmon_temp_invalid = 0;
-
-/* #define DEBUG */
-
-typedef struct sysmon_s sysmon_t;
-typedef struct sysmon_table_s sysmon_table_t;
-
-static void sysmon_lm87_init (sysmon_t * this);
-static void sysmon_pic_init (sysmon_t * this);
-static uint sysmon_i2c_read (sysmon_t * this, uint addr);
-static uint sysmon_i2c_read_sgn (sysmon_t * this, uint addr);
-static void sysmon_ccfl_disable (sysmon_table_t * this);
-static void sysmon_ccfl_enable (sysmon_table_t * this);
-
-struct sysmon_s
-{
- uchar chip;
- void (*init)(sysmon_t *);
- uint (*read)(sysmon_t *, uint);
-};
-
-static sysmon_t sysmon_lm87 =
- {CONFIG_SYS_I2C_SYSMON_ADDR, sysmon_lm87_init, sysmon_i2c_read};
-static sysmon_t sysmon_lm87_sgn =
- {CONFIG_SYS_I2C_SYSMON_ADDR, sysmon_lm87_init, sysmon_i2c_read_sgn};
-static sysmon_t sysmon_pic =
- {CONFIG_SYS_I2C_PICIO_ADDR, sysmon_pic_init, sysmon_i2c_read};
-
-static sysmon_t * sysmon_list[] =
-{
- &sysmon_lm87,
- &sysmon_lm87_sgn,
- &sysmon_pic,
- 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[] =
-{
- {"Board temperature", " C", &sysmon_lm87_sgn, NULL, sysmon_ccfl_disable,
- 1, 1, -128, 127, 0xFF, 0x58, 0xD5, 0, 0x6C, 0xC6, 0, 0x27},
-
- {"Front temperature", " C", &sysmon_lm87, NULL, sysmon_ccfl_disable,
- 1, 100, -27316, 8984, 0xFF, 0xA4, 0xFC, 0, 0xB2, 0xF1, 0, 0x29},
-
- {"+3.3V CPU logic", "V", &sysmon_lm87, NULL, NULL,
- 100, 1000, 0, 4386, 0xFF, 0xB6, 0xC9, 0, 0xB6, 0xC9, 0, 0x22},
-
- {"+ 5 V logic", "V", &sysmon_lm87, NULL, NULL,
- 100, 1000, 0, 6630, 0xFF, 0xB6, 0xCA, 0, 0xB6, 0xCA, 0, 0x23},
-
- {"+12 V PCMCIA", "V", &sysmon_lm87, NULL, NULL,
- 100, 1000, 0, 15460, 0xFF, 0xBC, 0xD0, 0, 0xBC, 0xD0, 0, 0x21},
-
- {"+12 V CCFL", "V", &sysmon_lm87, NULL, sysmon_ccfl_enable,
- 100, 1000, 0, 15900, 0xFF, 0xB6, 0xCA, 0, 0xB6, 0xCA, 0, 0x24},
-
- {"+ 5 V standby", "V", &sysmon_pic, NULL, NULL,
- 100, 1000, 0, 6040, 0xFF, 0xC8, 0xDE, 0, 0xC8, 0xDE, 0, 0x7C},
-};
-static int sysmon_table_size = ARRAY_SIZE(sysmon_table);
-
-static int conversion_done = 0;
-
-
-int sysmon_init_f (void)
-{
- sysmon_t ** l;
- ulong reg;
-
- /* Power on CCFL, PCMCIA */
- reg = pic_read (0x60);
- reg |= 0x09;
- pic_write (0x60, reg);
-
- for (l = sysmon_list; *l; l++) {
- (*l)->init(*l);
- }
-
- return 0;
-}
-
-void sysmon_reloc (void)
-{
- /* Do nothing for now, sysmon_reloc() is required by the sysmon post */
-}
-
-static char *sysmon_unit_value (sysmon_table_t *s, uint val)
-{
- static char buf[32];
- int unit_val =
- s->unit_min + (s->unit_max - s->unit_min) * val / s->val_mask;
- char *p, sign;
- int dec, frac;
-
- 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);
-
- dec = s->unit_precision;
-
- if (dec != 1) {
- *p++ = '.';
- }
- for (dec /= 10; dec != 0; dec /= 10) {
- *p++ = '0' + (frac / dec) % 10;
- }
- strcpy(p, s->unit_name);
-
- return buf;
-}
-
-static void sysmon_lm87_init (sysmon_t * this)
-{
- uchar val;
-
- /* Detect LM87 chip */
- if (i2c_read(this->chip, 0x40, 1, &val, 1) || (val & 0x80) != 0 ||
- i2c_read(this->chip, 0x3E, 1, &val, 1) || val != 0x02) {
- printf("Error: LM87 not found at 0x%02X\n", this->chip);
- return;
- }
-
- /* Configure pins 5,6 as AIN */
- val = 0x03;
- if (i2c_write(this->chip, 0x16, 1, &val, 1)) {
- printf("Error: can't write LM87 config register\n");
- return;
- }
-
- /* Start monitoring */
- val = 0x01;
- if (i2c_write(this->chip, 0x40, 1, &val, 1)) {
- printf("Error: can't write LM87 config register\n");
- return;
- }
-}
-
-static void sysmon_pic_init (sysmon_t * this)
-{
-}
-
-static uint sysmon_i2c_read (sysmon_t * this, uint addr)
-{
- uchar val;
- uint res = i2c_read(this->chip, addr, 1, &val, 1);
-
- return res == 0 ? val : -1;
-}
-
-static uint sysmon_i2c_read_sgn (sysmon_t * this, uint addr)
-{
- uchar val;
- return i2c_read(this->chip, addr, 1, &val, 1) == 0 ?
- 128 + (signed char)val : -1;
-}
-
-static void sysmon_ccfl_disable (sysmon_table_t * this)
-{
- if (!this->val_valid_alt) {
- sysmon_temp_invalid = 1;
- }
-}
-
-static void sysmon_ccfl_enable (sysmon_table_t * this)
-{
- ulong reg;
-
- if (!sysmon_temp_invalid) {
- reg = pic_read (0x60);
- reg |= 0x06;
- pic_write (0x60, reg);
- }
-}
-
-int sysmon_post_test (int flags)
-{
- int res = 0;
- sysmon_table_t * t;
- uint val;
-
- /*
- * The A/D conversion on the LM87 sensor takes 300 ms.
- */
- if (! conversion_done) {
- while (post_time_ms(gd->post_init_f_time) < 300) WATCHDOG_RESET ();
- conversion_done = 1;
- }
-
- 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 & CONFIG_SYS_POST_SYSMON */
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