1 /* 2 * Copyright (c) 2021 Jimmy Johnson <catch22@fastmail.net> 3 * Copyright (c) 2022 T-Mobile USA, Inc. 4 * 5 * SPDX-License-Identifier: Apache-2.0 6 */ 7 8 #ifndef ZEPHYR_DRIVERS_SENSOR_TMP108_TMP108_H_ 9 #define ZEPHYR_DRIVERS_SENSOR_TMP108_TMP108_H_ 10 11 #include <stdint.h> 12 13 #include <zephyr/drivers/i2c.h> 14 #include <zephyr/drivers/sensor.h> 15 #include <zephyr/drivers/gpio.h> 16 #include <zephyr/drivers/sensor/tmp108.h> 17 18 #define TI_TMP108_REG_TEMP 0x00 /** Temperature register */ 19 #define TI_TMP108_REG_CONF 0x01 /** Configuration register */ 20 #define TI_TMP108_REG_LOW_LIMIT 0x02 /** Low alert set register */ 21 #define TI_TMP108_REG_HIGH_LIMIT 0x03 /** High alert set register */ 22 23 #define AMS_AS6212_CONF {.CONF_HYS1 = TI_TMP108_CONF_NA,\ 24 .CONF_HYS0 = TI_TMP108_CONF_NA,\ 25 .CONF_CR0 = 0x0040, \ 26 .CONF_CR1 = 0x0080, \ 27 .CONF_M1 = 0x0000, \ 28 .CONF_TM = 0x0200, \ 29 .CONF_POL = 0x0400, \ 30 .CONF_M0 = 0x8000, \ 31 .CONF_RST = 0x0080, \ 32 .TEMP_MULT = 15625, \ 33 .TEMP_DIV = 2, \ 34 .WAKEUP_TIME_IN_MS = 120 } 35 36 #define TI_TMP108_CONF {.CONF_HYS0 = 0x0010, \ 37 .CONF_HYS1 = 0x0020, \ 38 .CONF_POL = 0x0080, \ 39 .CONF_M0 = 0x0100, \ 40 .CONF_M1 = 0x0200, \ 41 .CONF_TM = 0x0400, \ 42 .CONF_CR0 = 0x2000, \ 43 .CONF_CR1 = 0x4000, \ 44 .CONF_RST = 0x0022, \ 45 .TEMP_MULT = 15625, \ 46 .TEMP_DIV = 4, \ 47 .WAKEUP_TIME_IN_MS = 30 } 48 49 #define TI_TMP108_MODE_SHUTDOWN(x) 0 50 #define TI_TMP108_MODE_ONE_SHOT(x) TI_TMP108_CONF_M0(x) 51 #define TI_TMP108_MODE_CONTINUOUS(x) TI_TMP108_CONF_M1(x) 52 #define TI_TMP108_MODE_MASK(x) ~(TI_TMP108_CONF_M0(x) | TI_TMP108_CONF_M1(x)) 53 54 #define TI_TMP108_FREQ_4_SECS(x) 0 55 #define TI_TMP108_FREQ_1_HZ(x) TI_TMP108_GET_CONF(x, CONF_CR0) 56 #define TI_TMP108_FREQ_4_HZ(x) TI_TMP108_GET_CONF(x, CONF_CR1) 57 #define TI_TMP108_FREQ_16_HZ(x) (TI_TMP108_GET_CONF(x, CONF_CR1) | \ 58 TI_TMP108_GET_CONF(x, CONF_CR0)) 59 #define TI_TMP108_FREQ_MASK(x) ~(TI_TMP108_GET_CONF(x, CONF_CR1) | \ 60 TI_TMP108_GET_CONF(x, CONF_CR0)) 61 62 #define TI_TMP108_CONF_POL_LOW(x) 0 63 #define TI_TMP108_CONF_POL_HIGH(x) TI_TMP108_GET_CONF(x, CONF_POL) 64 #define TI_TMP108_CONF_POL_MASK(x) ~(TI_TMP108_GET_CONF(x, CONF_POL)) 65 66 #define TI_TMP108_CONF_TM_CMP(x) 0 67 #define TI_TMP108_CONF_TM_INT(x) TI_TMP108_GET_CONF(x, CONF_TM) 68 #define TI_TMP108_CONF_TM_MASK(x) ~(TI_TMP108_GET_CONF(x, CONF_TM)) 69 70 #define TI_TMP108_HYSTER_0_C(x) 0 71 #define TI_TMP108_HYSTER_1_C(x) TI_TMP108_GET_CONF(x, CONF_HYS0) 72 #define TI_TMP108_HYSTER_2_C(x) TI_TMP108_GET_CONF(x, CONF_HYS1) 73 #define TI_TMP108_HYSTER_4_C(x) (TI_TMP108_GET_CONF(x, CONF_HYS1) | \ 74 TI_TMP108_GET_CONF(x, CONF_HYS0)) 75 #define TI_TMP108_HYSTER_MASK(x) ~(TI_TMP108_GET_CONF(x, CONF_HYS1) | \ 76 TI_TMP108_GET_CONF(x, CONF_HYS0)) 77 78 #define TI_TMP108_CONF_M1(x) TI_TMP108_GET_CONF(x, CONF_M1) 79 #define TI_TMP108_CONF_M0(x) TI_TMP108_GET_CONF(x, CONF_M0) 80 81 #define TMP108_TEMP_MULTIPLIER(x) TI_TMP108_GET_CONF(x, TEMP_MULT) 82 #define TMP108_TEMP_DIVISOR(x) TI_TMP108_GET_CONF(x, TEMP_DIV) 83 #define TMP108_WAKEUP_TIME_IN_MS(x) TI_TMP108_GET_CONF(x, WAKEUP_TIME_IN_MS) 84 #define TMP108_CONF_RST(x) TI_TMP108_GET_CONF(x, CONF_RST) 85 86 #define TI_TMP108_CONF_NA 0x0000 87 88 struct tmp_108_reg_def { 89 uint16_t CONF_M0; /** Mode 1 configuration bit */ 90 uint16_t CONF_M1; /** Mode 2 configuration bit */ 91 uint16_t CONF_CR0; /** Conversion rate 1 configuration bit */ 92 uint16_t CONF_CR1; /** Conversion rate 2 configuration bit */ 93 uint16_t CONF_POL; /** Alert pin Polarity configuration bit */ 94 uint16_t CONF_TM; /** Thermostat mode setting bit */ 95 uint16_t CONF_HYS1; /** Temperature hysteresis config 1 bit */ 96 uint16_t CONF_HYS0; /** Temperature hysteresis config 2 bit */ 97 int32_t TEMP_MULT; /** Temperature multiplier */ 98 int32_t TEMP_DIV; /** Temperature divisor */ 99 uint16_t WAKEUP_TIME_IN_MS; /** Wake up and conversion time from one shot */ 100 uint16_t CONF_RST; /** default reset values on init */ 101 }; 102 103 #define TI_TMP108_GET_CONF(x, cfg) ((struct tmp108_config *)(x->config))->reg_def.cfg 104 105 struct tmp108_config { 106 const struct i2c_dt_spec i2c_spec; 107 const struct gpio_dt_spec alert_gpio; 108 struct tmp_108_reg_def reg_def; 109 }; 110 111 struct tmp108_data { 112 const struct device *tmp108_dev; 113 114 int16_t sample; 115 116 bool one_shot_mode; 117 118 struct k_work_delayable scheduled_work; 119 120 const struct sensor_trigger *temp_alert_trigger; 121 sensor_trigger_handler_t temp_alert_handler; 122 123 sensor_trigger_handler_t data_ready_handler; 124 const struct sensor_trigger *data_ready_trigger; 125 126 struct gpio_callback temp_alert_gpio_cb; 127 }; 128 129 int tmp_108_trigger_set(const struct device *dev, 130 const struct sensor_trigger *trig, 131 sensor_trigger_handler_t handler); 132 133 int tmp108_reg_read(const struct device *dev, uint8_t reg, uint16_t *val); 134 135 int ti_tmp108_read_temp(const struct device *dev); 136 void tmp108_trigger_handle_one_shot(struct k_work *work); 137 void tmp108_trigger_handle_alert(const struct device *port, 138 struct gpio_callback *cb, 139 gpio_port_pins_t pins); 140 141 #endif /* ZEPHYR_DRIVERS_SENSOR_TMP108_TMP108_H_ */ 142
