gpio_pca9555_regrst.c File Reference

Driver for an PCA9555 I2C-based GPIO controller (w/regrst) More...

#include <errno.h>
#include <zephyr/kernel.h>
#include <zephyr/device.h>
#include <zephyr/init.h>
#include <zephyr/sys/byteorder.h>
#include <zephyr/sys/util.h>
#include <zephyr/drivers/gpio.h>
#include <zephyr/drivers/i2c.h>
#include <zephyr/drivers/gpio/gpio_utils.h>
#include <zephyr/logging/log.h>

Data Structures
struct	gpio_pca9555_regrst_config
	Configuration data. More...
struct	gpio_pca9555_regrst_drv_data
	Runtime driver data. More...

Macros
#define	DT_DRV_COMPAT   nxp_pca9555_regrst
#define	LOG_LEVEL   CONFIG_GPIO_LOG_LEVEL
#define	REG_INPUT_PORT0   0x00
#define	REG_INPUT_PORT1   0x01
#define	REG_OUTPUT_PORT0   0x02
#define	REG_OUTPUT_PORT1   0x03
#define	REG_OUTPUT_DFLT   0xFFFF
#define	REG_POL_INV_PORT0   0x04
#define	REG_POL_INV_PORT1   0x05
#define	REG_POL_INV_DFLT   0x0000
#define	REG_CONF_PORT0   0x06
#define	REG_CONG_PORT1   0x07
#define	REG_CONG_DFLT   0xFFFF
#define	PCA_HAS_INTERRUPT   BIT(1)
#define	PCA_HAS_RST_DFLTS   BIT(7)
#define	GPIO_PCA9555_REGRST_DEVICE_INSTANCE(inst)

Functions
	LOG_MODULE_REGISTER (gpio_pca9555_regrst)
static int	read_port_regs (const struct device *dev, uint8_t reg, uint16_t *cache, uint16_t *buf)
	Read both port 0 and port 1 registers of certain register function.
static int	write_port_regs (const struct device *dev, uint8_t reg, uint16_t *cache, uint16_t value)
	Write both port 0 and port 1 registers of certain register function.
static int	update_input_regs (const struct device *dev, uint16_t *buf)
static int	update_output_regs (const struct device *dev, uint16_t value)
static int	update_direction_regs (const struct device *dev, uint16_t value)
static int	setup_pin_dir (const struct device *dev, uint32_t pin, int flags)
	Setup the pin direction (input or output)
static int	gpio_pca9555_regrst_config (const struct device *dev, gpio_pin_t pin, gpio_flags_t flags)
	Configure pin or port.
static int	gpio_pca9555_regrst_port_get_raw (const struct device *dev, uint32_t *value)
static int	gpio_pca9555_regrst_port_set_masked_raw (const struct device *dev, uint32_t mask, uint32_t value)
static int	gpio_pca9555_regrst_port_set_bits_raw (const struct device *dev, uint32_t mask)
static int	gpio_pca9555_regrst_port_clear_bits_raw (const struct device *dev, uint32_t mask)
static int	gpio_pca9555_regrst_port_toggle_bits (const struct device *dev, uint32_t mask)
static int	gpio_pca9555_regrst_pin_interrupt_configure (const struct device *dev, gpio_pin_t pin, enum gpio_int_mode mode, enum gpio_int_trig trig)
static int	gpio_pca9555_regrst_reset_defaults (const struct device *dev)
	Reset defaults function of PCA9555.
static int	gpio_pca9555_regrst_init (const struct device *dev)
	Initialization function of PCA9555.

Variables
static const struct gpio_driver_api	gpio_pca9555_regrst_drv_api_funcs

Detailed Description

Driver for an PCA9555 I2C-based GPIO controller (w/regrst)

Macro Definition Documentation

DT_DRV_COMPAT

#define DT_DRV_COMPAT   nxp_pca9555_regrst

LOG_LEVEL

#define LOG_LEVEL   CONFIG_GPIO_LOG_LEVEL

Function Documentation

LOG_MODULE_REGISTER()

LOG_MODULE_REGISTER

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gpio_pca9555_regrst

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