mfd_sc16is75x.h

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/*
 * Copyright (c) 2024 TiaC Systems
 * SPDX-License-Identifier: Apache-2.0
 */
 
#ifndef ZEPHYR_DRIVERS_MFD_SC16IS75X_H_
#define ZEPHYR_DRIVERS_MFD_SC16IS75X_H_
 
#ifdef __cplusplus
extern "C" {
#endif
 
#define DT_DRV_COMPAT nxp_sc16is75x
 
#include <zephyr/kernel.h>
#include <zephyr/device.h>
#include <zephyr/pm/device.h>
#include <zephyr/drivers/gpio.h>
#include <zephyr/drivers/mfd/sc16is75x.h>
 
#if DT_ANY_INST_ON_BUS_STATUS_OKAY(spi)
#include <zephyr/drivers/spi.h>
#endif /* DT_ANY_INST_ON_BUS_STATUS_OKAY(spi) */
 
#if DT_ANY_INST_ON_BUS_STATUS_OKAY(i2c)
#include <zephyr/drivers/i2c.h>
#endif /* DT_ANY_INST_ON_BUS_STATUS_OKAY(i2c) */
 
struct mfd_sc16is75x_config {
#if DT_ANY_INST_ON_BUS_STATUS_OKAY(spi)
        struct spi_dt_spec spi;
#endif /* DT_ANY_INST_ON_BUS_STATUS_OKAY(spi) */
#if DT_ANY_INST_ON_BUS_STATUS_OKAY(i2c)
        struct i2c_dt_spec i2c;
#endif /* DT_ANY_INST_ON_BUS_STATUS_OKAY(i2c) */
        int (*bus_init)(const struct device *dev);
        struct gpio_dt_spec reset;
        uint8_t n_channels;
        uint8_t channels[SC16IS75X_UART_CHANNELS_MAX];
#ifdef CONFIG_MFD_SC16IS75X_INTERRUPTS
        struct gpio_dt_spec interrupt;
#endif /* CONFIG_MFD_SC16IS75X_INTERRUPTS */
};
 
struct mfd_sc16is75x_transfer_function {
        int (*read_raw)(const struct device *dev, const uint8_t sub_address, uint8_t *buf,
                        const size_t len);
        int (*write_raw)(const struct device *dev, const uint8_t sub_address, const uint8_t *buf,
                         const size_t len);
#ifdef CONFIG_MFD_SC16IS75X_ASYNC
        int (*read_raw_signal)(const struct device *dev, const uint8_t sub_address, uint8_t *buf,
                               const size_t len, struct k_poll_signal *signal);
#endif /* CONFIG_MFD_SC16IS75X_ASYNC */
};
 
#ifdef CONFIG_MFD_SC16IS75X_ASWQ
 
int mfd_sc16is75x_read_raw_signal(const struct device *dev, const uint8_t sub_address, uint8_t *buf,
                                  const size_t len, struct k_poll_signal *signal);
 
#endif /* CONFIG_MFD_SC16IS75X_ASWQ */
 
struct mfd_sc16is75x_data {
        const struct device *self;
        const struct mfd_sc16is75x_transfer_function *transfer_function;
        struct k_mutex transaction_lock;
#ifdef CONFIG_MFD_SC16IS75X_ASWQ
        struct k_work_q work_queue;
        k_thread_stack_t *work_queue_stack;
#endif /* CONFIG_MFD_SC16IS75X_ASWQ */
#ifdef CONFIG_MFD_SC16IS75X_INTERRUPTS
        struct gpio_callback interrupt_cb;
        struct k_work interrupt_work;
        sys_slist_t callbacks;
#endif /* CONFIG_MFD_SC16IS75X_INTERRUPTS */
};
 
int mfd_sc16is75x_spi_init(const struct device *dev);
int mfd_sc16is75x_i2c_init(const struct device *dev);
 
#ifdef __cplusplus
}
#endif
 
#endif /* ZEPHYR_DRIVERS_MFD_SC16IS75X_H_*/