]>
git.ipfire.org Git - people/ms/u-boot.git/blob - common/cmd_dtt.c
3 * Erik Theisen, Wave 7 Optics, etheisen@mindspring.com
5 * SPDX-License-Identifier: GPL-2.0+
16 #if defined CONFIG_DTT_SENSORS
17 static unsigned long sensor_initialized
;
19 static void _initialize_dtt(void)
22 unsigned char sensors
[] = CONFIG_DTT_SENSORS
;
24 for (i
= 0; i
< sizeof(sensors
); i
++) {
25 if ((sensor_initialized
& (1 << i
)) == 0) {
26 if (dtt_init_one(sensors
[i
]) != 0) {
27 printf("DTT%d: Failed init!\n", i
);
30 sensor_initialized
|= (1 << i
);
39 /* switch to correct I2C bus */
40 old_bus
= I2C_GET_BUS();
41 I2C_SET_BUS(CONFIG_SYS_DTT_BUS_NUM
);
45 /* switch back to original I2C bus */
52 #if defined CONFIG_DTT_SENSORS
54 unsigned char sensors
[] = CONFIG_DTT_SENSORS
;
57 /* Force a compilation error, if there are more then 32 sensors */
58 BUILD_BUG_ON(sizeof(sensors
) > 32);
59 /* switch to correct I2C bus */
61 old_bus
= i2c_get_bus_num();
62 i2c_set_bus_num(CONFIG_SYS_DTT_BUS_NUM
);
64 old_bus
= I2C_GET_BUS();
65 I2C_SET_BUS(CONFIG_SYS_DTT_BUS_NUM
);
71 * Loop through sensors, read
72 * temperature, and output it.
74 for (i
= 0; i
< sizeof(sensors
); i
++)
75 printf("DTT%d: %i C\n", i
+ 1, dtt_get_temp(sensors
[i
]));
77 /* switch back to original I2C bus */
79 i2c_set_bus_num(old_bus
);
90 #if defined CONFIG_TMU_CMD_DTT
93 /* Sense and return latest thermal info */
94 if (tmu_monitor(&cur_temp
) == TMU_STATUS_INIT
) {
95 puts("TMU is in unknown state, temperature is invalid\n");
98 printf("Current temperature: %u degrees Celsius\n", cur_temp
);
103 int do_dtt(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char *const argv
[])
113 /***************************************************/
117 "Read temperature from Digital Thermometer and Thermostat",