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/* Copyright 2021 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "adc.h"
#include "temp_sensor.h"
#include "temp_sensor/pct2075.h"
#include "temp_sensor/sb_tsi.h"
#include "temp_sensor/temp_sensor.h"
#include "temp_sensor/thermistor.h"
#include "temp_sensor/tmp112.h"
#if DT_NODE_EXISTS(DT_PATH(named_temp_sensors))
#define GET_POWER_GOOD_PROP(node_id) DT_PROP(node_id, power_good_pin)
#define GET_POWER_GOOD_DEV(node_id) \
DEVICE_DT_GET(DT_GPIO_CTLR(GET_POWER_GOOD_PROP(node_id), \
gpios))
#define GET_POWER_GOOD_PIN(node_id) DT_GPIO_PIN(GET_POWER_GOOD_PROP(node_id), \
gpios)
#if ANY_INST_HAS_POWER_GOOD_PIN
#define FILL_POWER_GOOD(node_id) \
COND_CODE_1(DT_NODE_HAS_PROP(node_id, power_good_pin), \
(.power_good_dev = GET_POWER_GOOD_DEV(node_id), \
.power_good_pin = GET_POWER_GOOD_PIN(node_id), ), \
(.power_good_dev = NULL, \
.power_good_pin = 0, ))
#else
#define FILL_POWER_GOOD(node_id)
#endif /* ANY_INST_HAS_POWER_GOOD_PIN */
static int thermistor_get_temp(const struct temp_sensor_t *sensor,
int *temp_ptr)
{
return thermistor_get_temperature(sensor->idx, temp_ptr,
sensor->zephyr_info->thermistor);
}
#define GET_THERMISTOR_DATUM(node_sample_id) \
[DT_PROP(node_sample_id, \
sample_index)] = { .mv = DT_PROP(node_sample_id, milivolt), \
.temp = DT_PROP(node_sample_id, temp) },
#define DEFINE_THERMISTOR_DATA(node_id) \
static const struct thermistor_data_pair DT_CAT( \
node_id, _thermistor_data)[] = { \
DT_FOREACH_CHILD(node_id, GET_THERMISTOR_DATUM) \
};
#define GET_THERMISTOR_INFO(node_id) \
(&(struct thermistor_info){ \
.scaling_factor = DT_PROP(node_id, scaling_factor), \
.num_pairs = DT_PROP(node_id, num_pairs), \
.data = DT_CAT(node_id, _thermistor_data), \
})
#define GET_ZEPHYR_TEMP_SENSOR_THERMISTOR(node_id) \
(&(struct zephyr_temp_sensor){ \
.read = &thermistor_get_temp, \
.thermistor = \
GET_THERMISTOR_INFO(DT_PHANDLE(node_id, thermistor)), \
FILL_POWER_GOOD(node_id) \
})
#define TEMP_THERMISTOR(node_id) \
[ZSHIM_TEMP_SENSOR_ID(node_id)] = { \
.name = DT_LABEL(node_id), \
.idx = ZSHIM_ADC_ID(DT_PHANDLE(node_id, adc)), \
.type = TEMP_SENSOR_TYPE_BOARD, \
.zephyr_info = GET_ZEPHYR_TEMP_SENSOR_THERMISTOR(node_id), \
},
DT_FOREACH_STATUS_OKAY(cros_ec_thermistor, DEFINE_THERMISTOR_DATA)
#if DT_HAS_COMPAT_STATUS_OKAY(cros_ec_temp_sensor_pct2075)
static int pct2075_get_temp(const struct temp_sensor_t *sensor, int *temp_ptr)
{
return pct2075_get_val_k(sensor->idx, temp_ptr);
}
#endif /* cros_ec_temp_sensor_pct2075 */
#define DEFINE_PCT2075_DATA(node_id) \
[ZSHIM_PCT2075_SENSOR_ID(node_id)] = { \
.i2c_port = I2C_PORT(DT_PHANDLE(node_id, port)), \
.i2c_addr_flags = DT_STRING_TOKEN(node_id, i2c_addr_flags), \
},
#define GET_ZEPHYR_TEMP_SENSOR_PCT2075(node_id) \
(&(struct zephyr_temp_sensor){ \
.read = &pct2075_get_temp, \
.thermistor = NULL, \
FILL_POWER_GOOD(node_id) \
})
#define TEMP_PCT2075(node_id) \
[ZSHIM_TEMP_SENSOR_ID(node_id)] = { \
.name = DT_LABEL(node_id), \
.idx = ZSHIM_PCT2075_SENSOR_ID(node_id), \
.type = TEMP_SENSOR_TYPE_BOARD, \
.zephyr_info = GET_ZEPHYR_TEMP_SENSOR_PCT2075(node_id), \
},
const struct pct2075_sensor_t pct2075_sensors[PCT2075_COUNT] = {
DT_FOREACH_STATUS_OKAY(cros_ec_temp_sensor_pct2075, DEFINE_PCT2075_DATA)
};
#if DT_HAS_COMPAT_STATUS_OKAY(cros_ec_temp_sensor_sb_tsi)
static int sb_tsi_get_temp(const struct temp_sensor_t *sensor, int *temp_ptr)
{
return sb_tsi_get_val(sensor->idx, temp_ptr);
}
/* There can be only one SB TSI sensor with current driver */
#if DT_NUM_INST_STATUS_OKAY(cros_ec_temp_sensor_sb_tsi) > 1
#error "Unsupported number of SB TSI sensors"
#endif
#endif /* cros_ec_temp_sensor_sb_tsi */
#define GET_ZEPHYR_TEMP_SENSOR_SB_TSI(node_id) \
(&(struct zephyr_temp_sensor){ \
.read = &sb_tsi_get_temp, \
.thermistor = NULL, \
FILL_POWER_GOOD(node_id) \
})
#define TEMP_SB_TSI(node_id) \
[ZSHIM_TEMP_SENSOR_ID(node_id)] = { \
.name = DT_LABEL(node_id), \
.idx = 0, \
.type = TEMP_SENSOR_TYPE_CPU, \
.zephyr_info = GET_ZEPHYR_TEMP_SENSOR_SB_TSI(node_id), \
},
#if DT_HAS_COMPAT_STATUS_OKAY(cros_ec_temp_sensor_tmp112)
static int tmp112_get_temp(const struct temp_sensor_t *sensor, int *temp_ptr)
{
return tmp112_get_val_k(sensor->idx, temp_ptr);
}
#endif /* cros_ec_temp_sensor_tmp112 */
#define DEFINE_TMP112_DATA(node_id) \
[ZSHIM_TMP112_SENSOR_ID(node_id)] = { \
.i2c_port = I2C_PORT(DT_PHANDLE(node_id, port)), \
.i2c_addr_flags = DT_STRING_TOKEN(node_id, i2c_addr_flags), \
},
#define GET_ZEPHYR_TEMP_SENSOR_TMP112(node_id) \
(&(struct zephyr_temp_sensor){ \
.read = &tmp112_get_temp, \
.thermistor = NULL, \
FILL_POWER_GOOD(node_id) \
})
#define TEMP_TMP112(node_id) \
[ZSHIM_TEMP_SENSOR_ID(node_id)] = { \
.name = DT_LABEL(node_id), \
.idx = ZSHIM_TMP112_SENSOR_ID(node_id), \
.type = TEMP_SENSOR_TYPE_BOARD, \
.zephyr_info = GET_ZEPHYR_TEMP_SENSOR_TMP112(node_id), \
},
const struct tmp112_sensor_t tmp112_sensors[TMP112_COUNT] = {
DT_FOREACH_STATUS_OKAY(cros_ec_temp_sensor_tmp112, DEFINE_TMP112_DATA)
};
const struct temp_sensor_t temp_sensors[] = {
DT_FOREACH_STATUS_OKAY(cros_ec_temp_sensor_thermistor, TEMP_THERMISTOR)
DT_FOREACH_STATUS_OKAY(cros_ec_temp_sensor_pct2075, TEMP_PCT2075)
DT_FOREACH_STATUS_OKAY(cros_ec_temp_sensor_sb_tsi, TEMP_SB_TSI)
DT_FOREACH_STATUS_OKAY(cros_ec_temp_sensor_tmp112, TEMP_TMP112)
};
int temp_sensor_read(enum temp_sensor_id id, int *temp_ptr)
{
const struct temp_sensor_t *sensor;
if (id < 0 || id >= TEMP_SENSOR_COUNT)
return EC_ERROR_INVAL;
sensor = temp_sensors + id;
#if ANY_INST_HAS_POWER_GOOD_PIN
if (sensor->zephyr_info->power_good_dev) {
if (!gpio_pin_get(sensor->zephyr_info->power_good_dev,
sensor->zephyr_info->power_good_pin))
return EC_ERROR_NOT_POWERED;
}
#endif
return sensor->zephyr_info->read(sensor, temp_ptr);
}
#endif /* named_temp_sensors */
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