| /* ST Microelectronics LIS2DUX12 3-axis accelerometer driver |
| * |
| * Copyright (c) 2024 STMicroelectronics |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| * |
| * Datasheet: |
| * https://www.st.com/resource/en/datasheet/lis2dux12.pdf |
| */ |
| |
| #define DT_DRV_COMPAT st_lis2dux12 |
| |
| #include <zephyr/logging/log.h> |
| #include "lis2dux12.h" |
| |
| LOG_MODULE_DECLARE(LIS2DUX12, CONFIG_SENSOR_LOG_LEVEL); |
| |
| static void lis2dux12_gpio_callback(const struct device *dev, struct gpio_callback *cb, |
| uint32_t pins) |
| { |
| struct lis2dux12_data *data = CONTAINER_OF(cb, struct lis2dux12_data, gpio_cb); |
| int ret; |
| |
| ARG_UNUSED(pins); |
| |
| ret = gpio_pin_interrupt_configure_dt(data->drdy_gpio, GPIO_INT_DISABLE); |
| if (ret < 0) { |
| LOG_ERR("%s: Not able to configure pin_int", dev->name); |
| } |
| |
| #if defined(CONFIG_LIS2DUX12_TRIGGER_OWN_THREAD) |
| k_sem_give(&data->trig_sem); |
| #elif defined(CONFIG_LIS2DUX12_TRIGGER_GLOBAL_THREAD) |
| k_work_submit(&data->work); |
| #endif |
| } |
| |
| static void lis2dux12_handle_drdy_int(const struct device *dev) |
| { |
| struct lis2dux12_data *data = dev->data; |
| |
| if (data->data_ready_handler != NULL) { |
| data->data_ready_handler(dev, data->data_ready_trigger); |
| } |
| } |
| |
| static void lis2dux12_handle_int(const struct device *dev) |
| { |
| struct lis2dux12_data *lis2dux12 = dev->data; |
| const struct lis2dux12_config *cfg = dev->config; |
| stmdev_ctx_t *ctx = (stmdev_ctx_t *)&cfg->ctx; |
| lis2dux12_all_sources_t sources; |
| int ret; |
| |
| lis2dux12_all_sources_get(ctx, &sources); |
| |
| if (sources.drdy) { |
| lis2dux12_handle_drdy_int(dev); |
| } |
| |
| ret = gpio_pin_interrupt_configure_dt(lis2dux12->drdy_gpio, GPIO_INT_EDGE_TO_ACTIVE); |
| if (ret < 0) { |
| LOG_ERR("%s: Not able to configure pin_int", dev->name); |
| } |
| } |
| |
| #ifdef CONFIG_LIS2DUX12_TRIGGER_OWN_THREAD |
| static void lis2dux12_thread(struct lis2dux12_data *data) |
| { |
| while (1) { |
| k_sem_take(&data->trig_sem, K_FOREVER); |
| lis2dux12_handle_int(data->dev); |
| } |
| } |
| #endif |
| |
| #ifdef CONFIG_LIS2DUX12_TRIGGER_GLOBAL_THREAD |
| static void lis2dux12_work_cb(struct k_work *work) |
| { |
| struct lis2dux12_data *data = CONTAINER_OF(work, struct lis2dux12_data, work); |
| |
| lis2dux12_handle_int(data->dev); |
| } |
| #endif |
| |
| static int lis2dux12_init_interrupt(const struct device *dev) |
| { |
| const struct lis2dux12_config *cfg = dev->config; |
| stmdev_ctx_t *ctx = (stmdev_ctx_t *)&cfg->ctx; |
| lis2dux12_pin_int_route_t route; |
| int err; |
| |
| /* Enable pulsed mode */ |
| err = lis2dux12_data_ready_mode_set(ctx, LIS2DUX12_DRDY_PULSED); |
| if (err < 0) { |
| return err; |
| } |
| |
| /* route data-ready interrupt on int1 */ |
| err = lis2dux12_pin_int1_route_get(ctx, &route); |
| if (err < 0) { |
| return err; |
| } |
| |
| route.drdy = 1; |
| |
| err = lis2dux12_pin_int1_route_set(ctx, &route); |
| if (err < 0) { |
| return err; |
| } |
| |
| return 0; |
| } |
| |
| int lis2dux12_trigger_init(const struct device *dev) |
| { |
| struct lis2dux12_data *data = dev->data; |
| const struct lis2dux12_config *cfg = dev->config; |
| int ret; |
| |
| data->drdy_gpio = (cfg->drdy_pin == 1) ? (struct gpio_dt_spec *)&cfg->int1_gpio |
| : (struct gpio_dt_spec *)&cfg->int2_gpio; |
| |
| /* setup data ready gpio interrupt (INT1 or INT2) */ |
| if (!gpio_is_ready_dt(data->drdy_gpio)) { |
| LOG_ERR("Cannot get pointer to drdy_gpio device"); |
| return -ENODEV; |
| } |
| |
| data->dev = dev; |
| |
| ret = gpio_pin_configure_dt(data->drdy_gpio, GPIO_INPUT); |
| if (ret < 0) { |
| LOG_ERR("Could not configure gpio"); |
| return ret; |
| } |
| |
| gpio_init_callback(&data->gpio_cb, lis2dux12_gpio_callback, BIT(data->drdy_gpio->pin)); |
| |
| ret = gpio_add_callback(data->drdy_gpio->port, &data->gpio_cb); |
| if (ret < 0) { |
| LOG_ERR("Could not set gpio callback"); |
| return ret; |
| } |
| |
| #if defined(CONFIG_LIS2DUX12_TRIGGER_OWN_THREAD) |
| k_sem_init(&data->trig_sem, 0, K_SEM_MAX_LIMIT); |
| |
| k_thread_create(&data->thread, data->thread_stack, CONFIG_LIS2DUX12_THREAD_STACK_SIZE, |
| (k_thread_entry_t)lis2dux12_thread, data, NULL, NULL, |
| K_PRIO_COOP(CONFIG_LIS2DUX12_THREAD_PRIORITY), 0, K_NO_WAIT); |
| k_thread_name_set(&data->thread, dev->name); |
| #elif defined(CONFIG_LIS2DUX12_TRIGGER_GLOBAL_THREAD) |
| data->work.handler = lis2dux12_work_cb; |
| #endif |
| |
| return gpio_pin_interrupt_configure_dt(data->drdy_gpio, GPIO_INT_EDGE_TO_ACTIVE); |
| } |
| |
| int lis2dux12_trigger_set(const struct device *dev, const struct sensor_trigger *trig, |
| sensor_trigger_handler_t handler) |
| { |
| struct lis2dux12_data *data = dev->data; |
| const struct lis2dux12_config *cfg = dev->config; |
| stmdev_ctx_t *ctx = (stmdev_ctx_t *)&cfg->ctx; |
| lis2dux12_xl_data_t xldata; |
| lis2dux12_md_t mode; |
| int ret; |
| |
| if (!cfg->trig_enabled) { |
| LOG_ERR("trigger_set op not supported"); |
| return -ENOTSUP; |
| } |
| |
| if (data->drdy_gpio->port == NULL) { |
| LOG_ERR("trigger_set is not supported"); |
| return -ENOTSUP; |
| } |
| |
| ret = gpio_pin_interrupt_configure_dt(data->drdy_gpio, GPIO_INT_DISABLE); |
| if (ret < 0) { |
| LOG_ERR("%s: Not able to configure pin_int", dev->name); |
| return ret; |
| } |
| |
| data->data_ready_handler = handler; |
| if (handler == NULL) { |
| LOG_WRN("lis2dux12: no handler"); |
| return 0; |
| } |
| |
| /* re-trigger lost interrupt */ |
| lis2dux12_xl_data_get(ctx, &mode, &xldata); |
| |
| data->data_ready_trigger = trig; |
| |
| lis2dux12_init_interrupt(dev); |
| return gpio_pin_interrupt_configure_dt(data->drdy_gpio, GPIO_INT_EDGE_TO_ACTIVE); |
| } |