mirror of
https://github.com/zephyrproject-rtos/zephyr
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19381a7e12
The build infrastructure should not be adding the drivers subdirectory to the include path. Fix the legacy uses that depended on that addition. Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
144 lines
3.1 KiB
C
144 lines
3.1 KiB
C
/*
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* Copyright (c) 2019 Vestas Wind Systems A/S
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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/**
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* @file
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* @brief GPIO driver for the LMP90xxx AFE.
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*/
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#include <drivers/gpio.h>
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#include <zephyr.h>
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#define LOG_LEVEL CONFIG_GPIO_LOG_LEVEL
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#include <logging/log.h>
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LOG_MODULE_REGISTER(gpio_lmp90xxx);
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#include <drivers/adc/lmp90xxx.h>
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#include "gpio_utils.h"
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struct gpio_lmp90xxx_config {
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char *parent_dev_name;
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};
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struct gpio_lmp90xxx_data {
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struct device *parent;
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};
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static int gpio_lmp90xxx_config(struct device *dev, int access_op,
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u32_t pin, int flags)
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{
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struct gpio_lmp90xxx_data *data = dev->driver_data;
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int err;
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if (access_op != GPIO_ACCESS_BY_PIN) {
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return -ENOTSUP;
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}
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if (pin > LMP90XXX_GPIO_MAX) {
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return -EINVAL;
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}
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if (flags & GPIO_INT) {
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/* LMP90xxx GPIOs do not support interrupts */
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return -ENOTSUP;
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}
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if (flags & GPIO_DIR_OUT) {
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err = lmp90xxx_gpio_set_output(data->parent, pin);
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} else {
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err = lmp90xxx_gpio_set_input(data->parent, pin);
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}
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return err;
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}
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static int gpio_lmp90xxx_write(struct device *dev, int access_op,
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u32_t pin, u32_t value)
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{
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struct gpio_lmp90xxx_data *data = dev->driver_data;
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if (access_op != GPIO_ACCESS_BY_PIN) {
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return -ENOTSUP;
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}
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if (pin > LMP90XXX_GPIO_MAX) {
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return -EINVAL;
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}
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return lmp90xxx_gpio_set_pin_value(data->parent, pin,
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value ? true : false);
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}
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static int gpio_lmp90xxx_read(struct device *dev, int access_op,
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u32_t pin, u32_t *value)
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{
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struct gpio_lmp90xxx_data *data = dev->driver_data;
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bool set;
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int err;
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if (access_op != GPIO_ACCESS_BY_PIN) {
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return -ENOTSUP;
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}
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if (pin > LMP90XXX_GPIO_MAX) {
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return -EINVAL;
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}
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err = lmp90xxx_gpio_get_pin_value(data->parent, pin, &set);
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if (!err) {
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*value = set ? 1 : 0;
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}
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return err;
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}
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static int gpio_lmp90xxx_init(struct device *dev)
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{
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const struct gpio_lmp90xxx_config *config = dev->config->config_info;
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struct gpio_lmp90xxx_data *data = dev->driver_data;
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data->parent = device_get_binding(config->parent_dev_name);
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if (!data->parent) {
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LOG_ERR("parent LMP90xxx device '%s' not found",
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config->parent_dev_name);
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return -EINVAL;
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}
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return 0;
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}
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static const struct gpio_driver_api gpio_lmp90xxx_api = {
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.config = gpio_lmp90xxx_config,
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.write = gpio_lmp90xxx_write,
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.read = gpio_lmp90xxx_read,
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};
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BUILD_ASSERT_MSG(CONFIG_GPIO_LMP90XXX_INIT_PRIORITY >
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CONFIG_ADC_LMP90XXX_INIT_PRIORITY,
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"LMP90xxx GPIO driver must be initialized after LMP90xxx ADC "
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"driver");
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#define GPIO_LMP90XXX_DEVICE(id) \
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static const struct gpio_lmp90xxx_config gpio_lmp90xxx_##id##_cfg = {\
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.parent_dev_name = \
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DT_INST_##id##_TI_LMP90XXX_GPIO_BUS_NAME, \
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}; \
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\
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static struct gpio_lmp90xxx_data gpio_lmp90xxx_##id##_data; \
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\
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DEVICE_AND_API_INIT(gpio_lmp90xxx_##id, \
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DT_INST_##id##_TI_LMP90XXX_GPIO_LABEL, \
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&gpio_lmp90xxx_init, \
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&gpio_lmp90xxx_##id##_data, \
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&gpio_lmp90xxx_##id##_cfg, POST_KERNEL, \
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CONFIG_GPIO_LMP90XXX_INIT_PRIORITY, \
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&gpio_lmp90xxx_api)
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#ifdef DT_INST_0_TI_LMP90XXX_GPIO
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GPIO_LMP90XXX_DEVICE(0);
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#endif
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