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 \ 24 {.CONF_CR0 = 0x0040, \ 25 .CONF_CR1 = 0x0080, \ 26 .CONF_SLEEP = 0x0100, \ 27 .CONF_M1 = 0x0000, \ 28 .CONF_TM = 0x0200, \ 29 .CONF_M0 = 0x8000, \ 30 .CONF_RST = 0x0080, \ 31 .TEMP_MULT = 15625, \ 32 .TEMP_DIV = 2, \ 33 IF_ENABLED(CONFIG_TMP108_ALERT_INTERRUPTS, (.CONF_POL = 0x0400))} 34 35 #define TI_TMP108_CONF \ 36 {.CONF_M0 = 0x0100, \ 37 .CONF_M1 = 0x0200, \ 38 .CONF_TM = 0x0400, \ 39 .CONF_CR0 = 0x2000, \ 40 .CONF_CR1 = 0x4000, \ 41 .CONF_RST = 0x0022, \ 42 .TEMP_MULT = 15625, \ 43 .TEMP_DIV = 4, \ 44 IF_ENABLED(CONFIG_TMP108_ALERT_INTERRUPTS, \ 45 (.CONF_HYS0 = 0x0010, .CONF_HYS1 = 0x0020, .CONF_POL = 0x0080))} 46 47 #define TI_TMP108_MODE_SHUTDOWN(x) 0 48 #define TI_TMP108_MODE_ONE_SHOT(x) (TI_TMP108_CONF_M0(x) | TI_TMP108_CONF_SLEEP(x)) 49 #define TI_TMP108_MODE_CONTINUOUS(x) TI_TMP108_CONF_M1(x) 50 #define TI_TMP108_MODE_MASK(x) ~(TI_TMP108_CONF_M0(x) | \ 51 TI_TMP108_CONF_M1(x) | \ 52 TI_TMP108_CONF_SLEEP(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 #define TI_TMP108_CONF_SLEEP(x) TI_TMP108_GET_CONF(x, CONF_SLEEP) 81 82 #define TMP108_TEMP_MULTIPLIER(x) TI_TMP108_GET_CONF(x, TEMP_MULT) 83 #define TMP108_TEMP_DIVISOR(x) TI_TMP108_GET_CONF(x, TEMP_DIV) 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_SLEEP; /** Sleep mode configuration bit */ 92 uint16_t CONF_CR0; /** Conversion rate 1 configuration bit */ 93 uint16_t CONF_CR1; /** Conversion rate 2 configuration bit */ 94 uint16_t CONF_TM; /** Thermostat mode setting bit */ 95 int32_t TEMP_MULT; /** Temperature multiplier */ 96 int32_t TEMP_DIV; /** Temperature divisor */ 97 uint16_t CONF_RST; /** default reset values on init */ 98 #ifdef CONFIG_TMP108_ALERT_INTERRUPTS 99 uint16_t CONF_POL; /** Alert pin Polarity configuration bit */ 100 uint16_t CONF_HYS1; /** Temperature hysteresis config 1 bit */ 101 uint16_t CONF_HYS0; /** Temperature hysteresis config 2 bit */ 102 #endif 103 }; 104 105 #define TI_TMP108_GET_CONF(x, cfg) ((struct tmp108_config *)(x->config))->reg_def.cfg 106 107 struct tmp108_config { 108 const struct i2c_dt_spec i2c_spec; 109 struct tmp_108_reg_def reg_def; 110 #ifdef CONFIG_TMP108_ALERT_INTERRUPTS 111 const struct gpio_dt_spec alert_gpio; 112 #endif /* CONFIG_TMP108_ALERT_INTERRUPTS */ 113 }; 114 115 struct tmp108_data { 116 int16_t sample; 117 118 bool one_shot_mode; 119 120 #ifdef CONFIG_TMP108_ALERT_INTERRUPTS 121 const struct device *tmp108_dev; 122 123 const struct sensor_trigger *temp_alert_trigger; 124 sensor_trigger_handler_t temp_alert_handler; 125 126 struct gpio_callback temp_alert_gpio_cb; 127 #endif /* CONFIG_TMP108_ALERT_INTERRUPTS */ 128 }; 129 130 int tmp_108_trigger_set(const struct device *dev, 131 const struct sensor_trigger *trig, 132 sensor_trigger_handler_t handler); 133 134 int tmp108_reg_read(const struct device *dev, uint8_t reg, uint16_t *val); 135 136 int ti_tmp108_read_temp(const struct device *dev); 137 void tmp108_trigger_handle_one_shot(struct k_work *work); 138 void tmp108_trigger_handle_alert(const struct device *port, 139 struct gpio_callback *cb, 140 gpio_port_pins_t pins); 141 142 #endif /* ZEPHYR_DRIVERS_SENSOR_TMP108_TMP108_H_ */ 143
