target_device.h

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/*
 * Copyright 2022 Intel Corporation
 *
 * SPDX-License-Identifier: Apache-2.0
 */
 
#ifndef ZEPHYR_INCLUDE_DRIVERS_I3C_TARGET_DEVICE_H_
#define ZEPHYR_INCLUDE_DRIVERS_I3C_TARGET_DEVICE_H_
 
#include <zephyr/device.h>
#include <zephyr/kernel.h>
#include <zephyr/types.h>
#include <zephyr/sys/util.h>
 
#ifdef __cplusplus
extern "C" {
#endif
 
struct i3c_driver_api;
 
struct i3c_config_target {
 bool enable;
 
 uint8_t static_addr;
 
 uint64_t pid;
 
 bool pid_random;
 
 uint8_t bcr;
 
 uint8_t dcr;
 
 uint16_t max_read_len;
 
 uint16_t max_write_len;
 
 uint8_t supported_hdr;
};
 
struct i3c_target_config {
 sys_snode_t node;
 
 uint8_t flags;
 
 uint8_t address;
 
 const struct i3c_target_callbacks *callbacks;
};
 
struct i3c_target_callbacks {
 int (*write_requested_cb)(struct i3c_target_config *config);
 
 int (*write_received_cb)(struct i3c_target_config *config,
 uint8_t val);
 
 int (*read_requested_cb)(struct i3c_target_config *config,
 uint8_t *val);
 
 int (*read_processed_cb)(struct i3c_target_config *config,
 uint8_t *val);
 
 int (*stop_cb)(struct i3c_target_config *config);
};
 
__subsystem struct i3c_target_driver_api {
 int (*driver_register)(const struct device *dev);
 int (*driver_unregister)(const struct device *dev);
};
 
static inline int i3c_target_tx_write(const struct device *dev,
 uint8_t *buf, uint16_t len)
{
 const struct i3c_driver_api *api =
 (const struct i3c_driver_api *)dev->api;
 
 if (api->target_tx_write == NULL) {
 return -ENOSYS;
 }
 
 return api->target_tx_write(dev, buf, len);
}
 
static inline int i3c_target_register(const struct device *dev,
 struct i3c_target_config *cfg)
{
 const struct i3c_driver_api *api =
 (const struct i3c_driver_api *)dev->api;
 
 if (api->target_register == NULL) {
 return -ENOSYS;
 }
 
 return api->target_register(dev, cfg);
}
 
static inline int i3c_target_unregister(const struct device *dev,
 struct i3c_target_config *cfg)
{
 const struct i3c_driver_api *api =
 (const struct i3c_driver_api *)dev->api;
 
 if (api->target_unregister == NULL) {
 return -ENOSYS;
 }
 
 return api->target_unregister(dev, cfg);
}
 
#ifdef __cplusplus
}
#endif
 
#endif /* ZEPHYR_INCLUDE_DRIVERS_I3C_TARGET_DEVICE_H_ */