1 /* ST Microelectronics LPS2XDF pressure and temperature sensor 2 * 3 * Copyright (c) 2023 STMicroelectronics 4 * Copyright (c) 2023 PHYTEC Messtechnik GmbH 5 * 6 * SPDX-License-Identifier: Apache-2.0 7 */ 8 9 #ifndef ZEPHYR_DRIVERS_SENSOR_LPS2XDF_LPS2XDF_H_ 10 #define ZEPHYR_DRIVERS_SENSOR_LPS2XDF_LPS2XDF_H_ 11 12 #include <stdint.h> 13 #include <stmemsc.h> 14 15 #if DT_HAS_COMPAT_STATUS_OKAY(st_ilps22qs) 16 #include "ilps22qs_reg.h" 17 #endif 18 19 #if DT_HAS_COMPAT_STATUS_OKAY(st_lps28dfw) 20 #include "lps28dfw_reg.h" 21 #endif 22 23 #if DT_HAS_COMPAT_STATUS_OKAY(st_lps22df) 24 #include "lps22df_reg.h" 25 #endif 26 27 #include <zephyr/drivers/spi.h> 28 #include <zephyr/drivers/i2c.h> 29 #include <zephyr/drivers/i3c.h> 30 #include <zephyr/drivers/sensor.h> 31 32 #define LPS2XDF_SWRESET_WAIT_TIME_US 50 33 34 #if (DT_HAS_COMPAT_ON_BUS_STATUS_OKAY(st_lps22df, i3c) || \ 35 DT_HAS_COMPAT_ON_BUS_STATUS_OKAY(st_ilps22qs, i3c) || \ 36 DT_HAS_COMPAT_ON_BUS_STATUS_OKAY(st_lps28dfw, i3c)) 37 #define ON_I3C_BUS(cfg) (cfg->i3c.bus != NULL) 38 #else 39 #define ON_I3C_BUS(cfg) (false) 40 #endif 41 42 typedef int32_t (*api_lps2xdf_mode_set_odr_raw)(const struct device *dev, uint8_t odr); 43 typedef int32_t (*api_lps2xdf_sample_fetch)(const struct device *dev, enum sensor_channel chan); 44 #ifdef CONFIG_LPS2XDF_TRIGGER 45 typedef int (*api_lps2xdf_config_interrupt)(const struct device *dev); 46 typedef void (*api_lps2xdf_handle_interrupt)(const struct device *dev); 47 typedef int (*api_lps2xdf_trigger_set)(const struct device *dev, 48 const struct sensor_trigger *trig, 49 sensor_trigger_handler_t handler); 50 #endif 51 52 struct lps2xdf_chip_api { 53 api_lps2xdf_mode_set_odr_raw mode_set_odr_raw; 54 api_lps2xdf_sample_fetch sample_fetch; 55 #ifdef CONFIG_LPS2XDF_TRIGGER 56 api_lps2xdf_config_interrupt config_interrupt; 57 api_lps2xdf_handle_interrupt handle_interrupt; 58 api_lps2xdf_trigger_set trigger_set; 59 #endif 60 }; 61 62 63 enum sensor_variant { 64 DEVICE_VARIANT_LPS22DF = 0, 65 DEVICE_VARIANT_LPS28DFW = 1, 66 DEVICE_VARIANT_ILPS22QS = 2, 67 }; 68 69 70 struct lps2xdf_config { 71 stmdev_ctx_t ctx; 72 union { 73 #if (DT_HAS_COMPAT_ON_BUS_STATUS_OKAY(st_lps22df, i2c) || \ 74 DT_HAS_COMPAT_ON_BUS_STATUS_OKAY(st_ilps22qs, i2c) || \ 75 DT_HAS_COMPAT_ON_BUS_STATUS_OKAY(st_lps28dfw, i2c)) 76 const struct i2c_dt_spec i2c; 77 #endif 78 #if (DT_HAS_COMPAT_ON_BUS_STATUS_OKAY(st_lps22df, spi) ||\ 79 DT_HAS_COMPAT_ON_BUS_STATUS_OKAY(st_ilps22qs, spi)) 80 const struct spi_dt_spec spi; 81 #endif 82 #if (DT_HAS_COMPAT_ON_BUS_STATUS_OKAY(st_lps22df, i3c) || \ 83 DT_HAS_COMPAT_ON_BUS_STATUS_OKAY(st_ilps22qs, i3c) || \ 84 DT_HAS_COMPAT_ON_BUS_STATUS_OKAY(st_lps28dfw, i3c)) 85 struct i3c_device_desc **i3c; 86 #endif 87 } stmemsc_cfg; 88 uint8_t odr; 89 uint8_t lpf; 90 uint8_t avg; 91 uint8_t drdy_pulsed; 92 bool fs; 93 #ifdef CONFIG_LPS2XDF_TRIGGER 94 struct gpio_dt_spec gpio_int; 95 bool trig_enabled; 96 #endif 97 98 #if (DT_HAS_COMPAT_ON_BUS_STATUS_OKAY(st_lps22df, i3c) || \ 99 DT_HAS_COMPAT_ON_BUS_STATUS_OKAY(st_ilps22qs, i3c) || \ 100 DT_HAS_COMPAT_ON_BUS_STATUS_OKAY(st_lps28dfw, i3c)) 101 struct { 102 const struct device *bus; 103 const struct i3c_device_id dev_id; 104 } i3c; 105 #endif 106 const struct lps2xdf_chip_api *chip_api; 107 }; 108 109 struct lps2xdf_data { 110 int32_t sample_press; 111 int16_t sample_temp; 112 113 #ifdef CONFIG_LPS2XDF_TRIGGER 114 struct gpio_callback gpio_cb; 115 116 const struct sensor_trigger *data_ready_trigger; 117 sensor_trigger_handler_t handler_drdy; 118 const struct device *dev; 119 120 #if defined(CONFIG_LPS2XDF_TRIGGER_OWN_THREAD) 121 K_KERNEL_STACK_MEMBER(thread_stack, CONFIG_LPS2XDF_THREAD_STACK_SIZE); 122 struct k_thread thread; 123 struct k_sem intr_sem; 124 #elif defined(CONFIG_LPS2XDF_TRIGGER_GLOBAL_THREAD) 125 struct k_work work; 126 #endif 127 128 #endif /* CONFIG_LPS2XDF_TRIGGER */ 129 130 #if (DT_HAS_COMPAT_ON_BUS_STATUS_OKAY(st_lps22df, i3c) || \ 131 DT_HAS_COMPAT_ON_BUS_STATUS_OKAY(st_ilps22qs, i3c) || \ 132 DT_HAS_COMPAT_ON_BUS_STATUS_OKAY(st_lps28dfw, i3c)) 133 struct i3c_device_desc *i3c_dev; 134 #endif 135 }; 136 137 #ifdef CONFIG_LPS2XDF_TRIGGER 138 int lps2xdf_config_int(const struct device *dev); 139 140 int lps2xdf_trigger_set(const struct device *dev, 141 const struct sensor_trigger *trig, 142 sensor_trigger_handler_t handler); 143 144 int lps2xdf_init_interrupt(const struct device *dev, enum sensor_variant variant); 145 #endif 146 147 #endif /* ZEPHYR_DRIVERS_SENSOR_LPS2XDF_H_ */ 148
