3 * Erik Theisen, Wave 7 Optics, etheisen@mindspring.com
5 * See file CREDITS for list of people who contributed to this
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
32 #if defined CONFIG_DTT_SENSORS
33 static unsigned long sensor_initialized;
35 static void _initialize_dtt(void)
38 unsigned char sensors[] = CONFIG_DTT_SENSORS;
40 for (i = 0; i < sizeof(sensors); i++) {
41 if ((sensor_initialized & (1 << i)) == 0) {
42 if (dtt_init_one(sensors[i]) != 0) {
43 printf("DTT%d: Failed init!\n", i);
46 sensor_initialized |= (1 << i);
55 /* switch to correct I2C bus */
56 old_bus = I2C_GET_BUS();
57 I2C_SET_BUS(CONFIG_SYS_DTT_BUS_NUM);
61 /* switch back to original I2C bus */
68 #if defined CONFIG_DTT_SENSORS
70 unsigned char sensors[] = CONFIG_DTT_SENSORS;
73 /* Force a compilation error, if there are more then 32 sensors */
74 BUILD_BUG_ON(sizeof(sensors) > 32);
75 /* switch to correct I2C bus */
77 old_bus = i2c_get_bus_num();
78 i2c_set_bus_num(CONFIG_SYS_DTT_BUS_NUM);
80 old_bus = I2C_GET_BUS();
81 I2C_SET_BUS(CONFIG_SYS_DTT_BUS_NUM);
87 * Loop through sensors, read
88 * temperature, and output it.
90 for (i = 0; i < sizeof(sensors); i++)
91 printf("DTT%d: %i C\n", i + 1, dtt_get_temp(sensors[i]));
93 /* switch back to original I2C bus */
95 i2c_set_bus_num(old_bus);
106 #if defined CONFIG_TMU_CMD_DTT
109 /* Sense and return latest thermal info */
110 if (tmu_monitor(&cur_temp) == TMU_STATUS_INIT) {
111 puts("TMU is in unknown state, temperature is invalid\n");
114 printf("Current temperature: %u degrees Celsius\n", cur_temp);
119 int do_dtt(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
129 /***************************************************/
133 "Read temperature from Digital Thermometer and Thermostat",