* (C) Copyright 2001
* Erik Theisen, Wave 7 Optics, etheisen@mindspring.com
*
- * 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
+ * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <config.h>
#include <command.h>
-#if defined(CONFIG_CMD_DTT)
-
#include <dtt.h>
#include <i2c.h>
+#include <tmu.h>
+
+#if defined CONFIG_DTT_SENSORS
+static unsigned long sensor_initialized;
+
+static void _initialize_dtt(void)
+{
+ int i;
+ unsigned char sensors[] = CONFIG_DTT_SENSORS;
+
+ for (i = 0; i < sizeof(sensors); i++) {
+ if ((sensor_initialized & (1 << i)) == 0) {
+ if (dtt_init_one(sensors[i]) != 0) {
+ printf("DTT%d: Failed init!\n", i);
+ continue;
+ }
+ sensor_initialized |= (1 << i);
+ }
+ }
+}
+
+void dtt_init(void)
+{
+ int old_bus;
+
+ /* switch to correct I2C bus */
+ old_bus = I2C_GET_BUS();
+ I2C_SET_BUS(CONFIG_SYS_DTT_BUS_NUM);
+
+ _initialize_dtt();
+
+ /* switch back to original I2C bus */
+ I2C_SET_BUS(old_bus);
+}
+#endif
-int do_dtt (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int dtt_i2c(void)
{
+#if defined CONFIG_DTT_SENSORS
int i;
unsigned char sensors[] = CONFIG_DTT_SENSORS;
int old_bus;
+ /* Force a compilation error, if there are more then 32 sensors */
+ BUILD_BUG_ON(sizeof(sensors) > 32);
/* switch to correct I2C bus */
+#ifdef CONFIG_SYS_I2C
+ old_bus = i2c_get_bus_num();
+ i2c_set_bus_num(CONFIG_SYS_DTT_BUS_NUM);
+#else
old_bus = I2C_GET_BUS();
- I2C_SET_BUS(CFG_DTT_BUS_NUM);
+ I2C_SET_BUS(CONFIG_SYS_DTT_BUS_NUM);
+#endif
+
+ _initialize_dtt();
/*
* Loop through sensors, read
* temperature, and output it.
*/
- for (i = 0; i < sizeof (sensors); i++)
- printf ("DTT%d: %i C\n", i + 1, dtt_get_temp (sensors[i]));
+ for (i = 0; i < sizeof(sensors); i++)
+ printf("DTT%d: %i C\n", i + 1, dtt_get_temp(sensors[i]));
/* switch back to original I2C bus */
+#ifdef CONFIG_SYS_I2C
+ i2c_set_bus_num(old_bus);
+#else
I2C_SET_BUS(old_bus);
+#endif
+#endif
+
+ return 0;
+}
+int dtt_tmu(void)
+{
+#if defined CONFIG_TMU_CMD_DTT
+ int cur_temp;
+
+ /* Sense and return latest thermal info */
+ if (tmu_monitor(&cur_temp) == TMU_STATUS_INIT) {
+ puts("TMU is in unknown state, temperature is invalid\n");
+ return -1;
+ }
+ printf("Current temperature: %u degrees Celsius\n", cur_temp);
+#endif
return 0;
+}
+
+int do_dtt(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
+{
+ int err = 0;
+
+ err |= dtt_i2c();
+ err |= dtt_tmu();
+
+ return err;
} /* do_dtt() */
/***************************************************/
U_BOOT_CMD(
dtt, 1, 1, do_dtt,
- "dtt - Digital Thermometer and Themostat\n",
- " - Read temperature from digital thermometer and thermostat.\n"
+ "Read temperature from Digital Thermometer and Thermostat",
+ ""
);
-
-#endif