| /* ST Microelectronics LPS2XDF pressure and temperature sensor |
| * |
| * Copyright (c) 2023 STMicroelectronics |
| * Copyright (c) 2023 PHYTEC Messtechnik GmbH |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| * |
| * Datasheet: |
| * https://www.st.com/resource/en/datasheet/lps22df.pdf |
| * https://www.st.com/resource/en/datasheet/lps28dfw.pdf |
| */ |
| |
| #include <zephyr/kernel.h> |
| #include <zephyr/drivers/sensor.h> |
| #include <zephyr/drivers/gpio.h> |
| #include <zephyr/logging/log.h> |
| |
| #include "lps2xdf.h" |
| |
| #if DT_HAS_COMPAT_STATUS_OKAY(st_lps22df) |
| #include "lps22df.h" |
| #endif |
| |
| #if DT_HAS_COMPAT_STATUS_OKAY(st_lps28dfw) |
| #include "lps28dfw.h" |
| #endif |
| |
| LOG_MODULE_DECLARE(LPS2XDF, CONFIG_SENSOR_LOG_LEVEL); |
| |
| int lps2xdf_trigger_set(const struct device *dev, |
| const struct sensor_trigger *trig, |
| sensor_trigger_handler_t handler) |
| { |
| const struct lps2xdf_config *const cfg = dev->config; |
| const struct lps2xdf_chip_api *chip_api = cfg->chip_api; |
| |
| return chip_api->trigger_set(dev, trig, handler); |
| } |
| |
| static void lps2xdf_intr_callback(struct lps2xdf_data *lps2xdf) |
| { |
| #if defined(CONFIG_LPS2XDF_TRIGGER_OWN_THREAD) |
| k_sem_give(&lps2xdf->intr_sem); |
| #elif defined(CONFIG_LPS2XDF_TRIGGER_GLOBAL_THREAD) |
| k_work_submit(&lps2xdf->work); |
| #endif /* CONFIG_LPS2XDF_TRIGGER_OWN_THREAD */ |
| } |
| |
| static void lps2xdf_gpio_callback(const struct device *dev, |
| struct gpio_callback *cb, uint32_t pins) |
| { |
| struct lps2xdf_data *lps2xdf = |
| CONTAINER_OF(cb, struct lps2xdf_data, gpio_cb); |
| |
| ARG_UNUSED(pins); |
| const struct lps2xdf_config *cfg = lps2xdf->dev->config; |
| int ret; |
| |
| ret = gpio_pin_interrupt_configure_dt(&cfg->gpio_int, GPIO_INT_DISABLE); |
| if (ret < 0) { |
| LOG_ERR("%s: Not able to configure pin_int", dev->name); |
| } |
| |
| lps2xdf_intr_callback(lps2xdf); |
| } |
| |
| #ifdef CONFIG_LPS2XDF_TRIGGER_OWN_THREAD |
| static void lps2xdf_thread(struct lps2xdf_data *lps2xdf) |
| { |
| const struct device *dev = lps2xdf->dev; |
| const struct lps2xdf_config *const cfg = dev->config; |
| const struct lps2xdf_chip_api *chip_api = cfg->chip_api; |
| |
| while (1) { |
| k_sem_take(&lps2xdf->intr_sem, K_FOREVER); |
| chip_api->handle_interrupt(dev); |
| } |
| } |
| #endif /* CONFIG_LPS2XDF_TRIGGER_OWN_THREAD */ |
| |
| #ifdef CONFIG_LPS2XDF_TRIGGER_GLOBAL_THREAD |
| static void lps2xdf_work_cb(struct k_work *work) |
| { |
| struct lps2xdf_data *lps2xdf = |
| CONTAINER_OF(work, struct lps2xdf_data, work); |
| const struct device *dev = lps2xdf->dev; |
| const struct lps2xdf_config *const cfg = dev->config; |
| const struct lps2xdf_chip_api *chip_api = cfg->chip_api; |
| |
| chip_api->handle_interrupt(dev); |
| } |
| #endif /* CONFIG_LPS2XDF_TRIGGER_GLOBAL_THREAD */ |
| |
| #if (DT_HAS_COMPAT_ON_BUS_STATUS_OKAY(st_lps22df, i3c) ||\ |
| DT_HAS_COMPAT_ON_BUS_STATUS_OKAY(st_lps28dfw, i3c)) |
| static int lps2xdf_ibi_cb(struct i3c_device_desc *target, |
| struct i3c_ibi_payload *payload) |
| { |
| const struct device *dev = target->dev; |
| struct lps2xdf_data *lps2xdf = dev->data; |
| |
| ARG_UNUSED(payload); |
| |
| lps2xdf_intr_callback(lps2xdf); |
| |
| return 0; |
| } |
| #endif |
| |
| int lps2xdf_init_interrupt(const struct device *dev, enum sensor_variant variant) |
| { |
| struct lps2xdf_data *lps2xdf = dev->data; |
| const struct lps2xdf_config *cfg = dev->config; |
| stmdev_ctx_t *ctx = (stmdev_ctx_t *)&cfg->ctx; |
| int ret; |
| |
| /* setup data ready gpio interrupt */ |
| if (!gpio_is_ready_dt(&cfg->gpio_int) && !ON_I3C_BUS(cfg)) { |
| if (cfg->gpio_int.port) { |
| LOG_ERR("%s: device %s is not ready", dev->name, |
| cfg->gpio_int.port->name); |
| return -ENODEV; |
| } |
| |
| LOG_DBG("%s: gpio_int not defined in DT", dev->name); |
| return 0; |
| } |
| |
| lps2xdf->dev = dev; |
| |
| #if defined(CONFIG_LPS2XDF_TRIGGER_OWN_THREAD) |
| k_sem_init(&lps2xdf->intr_sem, 0, K_SEM_MAX_LIMIT); |
| |
| k_thread_create(&lps2xdf->thread, lps2xdf->thread_stack, |
| CONFIG_LPS2XDF_THREAD_STACK_SIZE, |
| (k_thread_entry_t)lps2xdf_thread, lps2xdf, |
| NULL, NULL, K_PRIO_COOP(CONFIG_LPS2XDF_THREAD_PRIORITY), |
| 0, K_NO_WAIT); |
| #elif defined(CONFIG_LPS2XDF_TRIGGER_GLOBAL_THREAD) |
| lps2xdf->work.handler = lps2xdf_work_cb; |
| #endif /* CONFIG_LPS2XDF_TRIGGER_OWN_THREAD */ |
| |
| if (!ON_I3C_BUS(cfg)) { |
| ret = gpio_pin_configure_dt(&cfg->gpio_int, GPIO_INPUT); |
| if (ret < 0) { |
| LOG_ERR("Could not configure gpio"); |
| return ret; |
| } |
| |
| LOG_INF("%s: int on %s.%02u", dev->name, cfg->gpio_int.port->name, |
| cfg->gpio_int.pin); |
| |
| gpio_init_callback(&lps2xdf->gpio_cb, |
| lps2xdf_gpio_callback, |
| BIT(cfg->gpio_int.pin)); |
| |
| ret = gpio_add_callback(cfg->gpio_int.port, &lps2xdf->gpio_cb); |
| if (ret < 0) { |
| LOG_ERR("Could not set gpio callback"); |
| return ret; |
| } |
| } |
| |
| LOG_DBG("drdy_pulsed is %d", (int)cfg->drdy_pulsed); |
| |
| /* enable drdy in pulsed/latched mode */ |
| if (variant == DEVICE_VARIANT_LPS22DF) { |
| #if DT_HAS_COMPAT_STATUS_OKAY(st_lps22df) |
| lps22df_int_mode_t mode; |
| |
| if (lps22df_interrupt_mode_get(ctx, &mode) < 0) { |
| return -EIO; |
| } |
| mode.drdy_latched = ~cfg->drdy_pulsed; |
| if (lps22df_interrupt_mode_set(ctx, &mode) < 0) { |
| return -EIO; |
| } |
| #endif |
| } else if (variant == DEVICE_VARIANT_LPS28DFW) { |
| #if DT_HAS_COMPAT_STATUS_OKAY(st_lps28dfw) |
| lps28dfw_int_mode_t mode; |
| |
| if (lps28dfw_interrupt_mode_get(ctx, &mode) < 0) { |
| return -EIO; |
| } |
| mode.drdy_latched = ~cfg->drdy_pulsed; |
| if (lps28dfw_interrupt_mode_set(ctx, &mode) < 0) { |
| return -EIO; |
| } |
| #endif |
| } else { |
| return -ENOTSUP; |
| } |
| |
| #if (DT_HAS_COMPAT_ON_BUS_STATUS_OKAY(st_lps22df, i3c) ||\ |
| DT_HAS_COMPAT_ON_BUS_STATUS_OKAY(st_lps28dfw, i3c)) |
| if (cfg->i3c.bus == NULL) { |
| /* I3C IBI does not utilize GPIO interrupt. */ |
| lps2xdf->i3c_dev->ibi_cb = lps2xdf_ibi_cb; |
| |
| if (i3c_ibi_enable(lps2xdf->i3c_dev) != 0) { |
| LOG_DBG("Could not enable I3C IBI"); |
| return -EIO; |
| } |
| |
| return 0; |
| } |
| #endif |
| |
| return gpio_pin_interrupt_configure_dt(&cfg->gpio_int, |
| GPIO_INT_EDGE_TO_ACTIVE); |
| } |