mirror of
https://github.com/zephyrproject-rtos/zephyr
synced 2025-09-06 22:02:33 +00:00
ff90b2c1d6
Update driver code and board files to use new GPIO configuration flags such as GPIO_ACTIVE_LOW. Also add implementation of new port_* driver API as well as gpio_pin_interrupt_configure function. Tested on nrf52840_pca10056 board. Signed-off-by: Piotr Mienkowski <piotr.mienkowski@gmail.com> Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
78 lines
2.1 KiB
C
78 lines
2.1 KiB
C
/*
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* Copyright (c) 2018 Aapo Vienamo
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <init.h>
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#include <drivers/gpio.h>
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#include <sys/printk.h>
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#define VDD_PWR_CTRL_GPIO_PIN 30
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#define CCS_VDD_PWR_CTRL_GPIO_PIN 10
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struct pwr_ctrl_cfg {
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const char *port;
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u32_t pin;
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};
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static int pwr_ctrl_init(struct device *dev)
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{
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const struct pwr_ctrl_cfg *cfg = dev->config->config_info;
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struct device *gpio;
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gpio = device_get_binding(cfg->port);
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if (!gpio) {
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printk("Could not bind device \"%s\"\n", cfg->port);
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return -ENODEV;
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}
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gpio_pin_configure(gpio, cfg->pin, GPIO_OUTPUT_HIGH);
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k_sleep(K_MSEC(1)); /* Wait for the rail to come up and stabilize */
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return 0;
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}
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/*
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* The CCS811 sensor is connected to the CCS_VDD power rail, which is downstream
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* from the VDD power rail. Both of these power rails need to be enabled before
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* the sensor driver init can be performed. The VDD rail also has to be powered up
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* before the CCS_VDD rail. These checks are to enforce the power up sequence
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* constraints.
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*/
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#if CONFIG_BOARD_VDD_PWR_CTRL_INIT_PRIORITY <= CONFIG_GPIO_NRF_INIT_PRIORITY
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#error GPIO_NRF_INIT_PRIORITY must be lower than \
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BOARD_VDD_PWR_CTRL_INIT_PRIORITY
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#endif
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static const struct pwr_ctrl_cfg vdd_pwr_ctrl_cfg = {
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.port = DT_GPIO_P0_DEV_NAME,
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.pin = VDD_PWR_CTRL_GPIO_PIN,
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};
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DEVICE_INIT(vdd_pwr_ctrl_init, "", pwr_ctrl_init, NULL, &vdd_pwr_ctrl_cfg,
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POST_KERNEL, CONFIG_BOARD_VDD_PWR_CTRL_INIT_PRIORITY);
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#ifdef CONFIG_SENSOR
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#if CONFIG_BOARD_CCS_VDD_PWR_CTRL_INIT_PRIORITY <= CONFIG_BOARD_VDD_PWR_CTRL_INIT_PRIORITY
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#error BOARD_VDD_PWR_CTRL_INIT_PRIORITY must be lower than BOARD_CCS_VDD_PWR_CTRL_INIT_PRIORITY
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#endif
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#if CONFIG_SENSOR_INIT_PRIORITY <= CONFIG_BOARD_CCS_VDD_PWR_CTRL_INIT_PRIORITY
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#error BOARD_CCS_VDD_PWR_CTRL_INIT_PRIORITY must be lower than SENSOR_INIT_PRIORITY
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#endif
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static const struct pwr_ctrl_cfg ccs_vdd_pwr_ctrl_cfg = {
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.port = DT_INST_0_SEMTECH_SX1509B_LABEL,
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.pin = CCS_VDD_PWR_CTRL_GPIO_PIN,
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};
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DEVICE_INIT(ccs_vdd_pwr_ctrl_init, "", pwr_ctrl_init, NULL,
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&ccs_vdd_pwr_ctrl_cfg, POST_KERNEL,
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CONFIG_BOARD_CCS_VDD_PWR_CTRL_INIT_PRIORITY);
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#endif
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