ef2a590281
Support single mode operation by enabling it and making the driver to use the interrupt to findout when the data is ready for fetch. The sample fetch will be blocked for a specified maximum time untill the interrupt happens. * Make operation mode configurable in DTS file * Make offset cancellation configurable in DTS file * Use single common .yaml file for both i2c and spi * Store above configurations in dev->config_info Signed-off-by: Masoud Shiroei <masoud.shiroei@assaabloy.com>
105 lines
2.4 KiB
C
105 lines
2.4 KiB
C
/* ST Microelectronics LIS2MDL 3-axis magnetometer sensor
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*
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* Copyright (c) 2018-2019 STMicroelectronics
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Datasheet:
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* https://www.st.com/resource/en/datasheet/lis2mdl.pdf
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*/
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#ifndef __MAG_LIS2MDL_H
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#define __MAG_LIS2MDL_H
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#include <drivers/spi.h>
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#include <drivers/gpio.h>
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#include <drivers/sensor.h>
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#include <sys/util.h>
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#include "lis2mdl_reg.h"
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union axis3bit16_t {
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int16_t i16bit[3];
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uint8_t u8bit[6];
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};
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union axis1bit16_t {
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int16_t i16bit;
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uint8_t u8bit[2];
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};
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struct lis2mdl_config {
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char *master_dev_name;
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int (*bus_init)(const struct device *dev);
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bool cancel_offset;
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bool single_mode;
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#ifdef CONFIG_LIS2MDL_TRIGGER
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char *gpio_name;
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uint32_t gpio_pin;
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uint8_t gpio_flags;
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#endif /* CONFIG_LIS2MDL_TRIGGER */
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#if DT_ANY_INST_ON_BUS_STATUS_OKAY(i2c)
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uint16_t i2c_slv_addr;
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#elif DT_ANY_INST_ON_BUS_STATUS_OKAY(spi)
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struct spi_config spi_conf;
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#if DT_INST_SPI_DEV_HAS_CS_GPIOS(0)
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const char *gpio_cs_port;
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uint8_t cs_gpio;
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uint8_t cs_gpio_flags;
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#endif /* DT_INST_SPI_DEV_HAS_CS_GPIOS(0) */
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#endif /* DT_ANY_INST_ON_BUS_STATUS_OKAY(spi) */
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};
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/* Sensor data */
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struct lis2mdl_data {
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const struct device *dev;
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const struct device *bus;
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uint16_t i2c_addr;
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int16_t mag[3];
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int32_t temp_sample;
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stmdev_ctx_t *ctx;
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#ifdef CONFIG_PM_DEVICE
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uint32_t power_state;
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#endif
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struct k_sem fetch_sem;
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#if DT_ANY_INST_ON_BUS_STATUS_OKAY(i2c)
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stmdev_ctx_t ctx_i2c;
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#elif DT_ANY_INST_ON_BUS_STATUS_OKAY(spi)
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stmdev_ctx_t ctx_spi;
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#endif
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#ifdef CONFIG_LIS2MDL_TRIGGER
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const struct device *gpio;
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struct gpio_callback gpio_cb;
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sensor_trigger_handler_t handler_drdy;
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#if defined(CONFIG_LIS2MDL_TRIGGER_OWN_THREAD)
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K_KERNEL_STACK_MEMBER(thread_stack, CONFIG_LIS2MDL_THREAD_STACK_SIZE);
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struct k_thread thread;
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struct k_sem gpio_sem;
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#elif defined(CONFIG_LIS2MDL_TRIGGER_GLOBAL_THREAD)
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struct k_work work;
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#endif /* CONFIG_LIS2MDL_TRIGGER_GLOBAL_THREAD */
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#endif /* CONFIG_LIS2MDL_TRIGGER */
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#if DT_INST_SPI_DEV_HAS_CS_GPIOS(0)
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struct spi_cs_control cs_ctrl;
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#endif /* DT_INST_SPI_DEV_HAS_CS_GPIOS(0) */
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};
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int lis2mdl_spi_init(const struct device *dev);
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int lis2mdl_i2c_init(const struct device *dev);
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#ifdef CONFIG_LIS2MDL_TRIGGER
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int lis2mdl_init_interrupt(const struct device *dev);
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int lis2mdl_trigger_set(const struct device *dev,
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const struct sensor_trigger *trig,
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sensor_trigger_handler_t handler);
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#endif /* CONFIG_LIS2MDL_TRIGGER */
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#endif /* __MAG_LIS2MDL_H */
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