Zephyr Project API 3.7.0
A Scalable Open Source RTOS
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target_device.h
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1/*
2 * Copyright 2022 Intel Corporation
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 */
6
7#ifndef ZEPHYR_INCLUDE_DRIVERS_I3C_TARGET_DEVICE_H_
8#define ZEPHYR_INCLUDE_DRIVERS_I3C_TARGET_DEVICE_H_
9
17#include <zephyr/device.h>
18#include <zephyr/kernel.h>
19#include <zephyr/types.h>
20#include <zephyr/sys/util.h>
21
22#ifdef __cplusplus
23extern "C" {
24#endif
25
26struct i3c_driver_api;
27
80
108
126 int (*write_requested_cb)(struct i3c_target_config *config);
127
148 uint8_t val);
149
171 uint8_t *val);
172
194 uint8_t *val);
195
211 int (*stop_cb)(struct i3c_target_config *config);
212};
213
214__subsystem struct i3c_target_driver_api {
215 int (*driver_register)(const struct device *dev);
216 int (*driver_unregister)(const struct device *dev);
217};
218
242static inline int i3c_target_tx_write(const struct device *dev,
243 uint8_t *buf, uint16_t len)
244{
245 const struct i3c_driver_api *api =
246 (const struct i3c_driver_api *)dev->api;
247
248 if (api->target_tx_write == NULL) {
249 return -ENOSYS;
250 }
251
252 return api->target_tx_write(dev, buf, len);
253}
254
278static inline int i3c_target_register(const struct device *dev,
279 struct i3c_target_config *cfg)
280{
281 const struct i3c_driver_api *api =
282 (const struct i3c_driver_api *)dev->api;
283
284 if (api->target_register == NULL) {
285 return -ENOSYS;
286 }
287
288 return api->target_register(dev, cfg);
289}
290
307static inline int i3c_target_unregister(const struct device *dev,
308 struct i3c_target_config *cfg)
309{
310 const struct i3c_driver_api *api =
311 (const struct i3c_driver_api *)dev->api;
312
313 if (api->target_unregister == NULL) {
314 return -ENOSYS;
315 }
316
317 return api->target_unregister(dev, cfg);
318}
319
320#ifdef __cplusplus
321}
322#endif
323
328#endif /* ZEPHYR_INCLUDE_DRIVERS_I3C_TARGET_DEVICE_H_ */
static int i3c_target_unregister(const struct device *dev, struct i3c_target_config *cfg)
Unregisters the provided config as target device.
Definition target_device.h:307
static int i3c_target_tx_write(const struct device *dev, uint8_t *buf, uint16_t len)
Writes to the target's TX FIFO.
Definition target_device.h:242
static int i3c_target_register(const struct device *dev, struct i3c_target_config *cfg)
Registers the provided config as target device of a controller.
Definition target_device.h:278
struct _snode sys_snode_t
Single-linked list node structure.
Definition slist.h:39
#define ENOSYS
Function not implemented.
Definition errno.h:82
Public kernel APIs.
__UINT64_TYPE__ uint64_t
Definition stdint.h:91
__UINT8_TYPE__ uint8_t
Definition stdint.h:88
__UINT16_TYPE__ uint16_t
Definition stdint.h:89
Runtime device structure (in ROM) per driver instance.
Definition device.h:403
const void * api
Address of the API structure exposed by the device instance.
Definition device.h:409
Configuration parameters for I3C hardware to act as target device.
Definition target_device.h:34
uint8_t bcr
Bus Characteristics Register (BCR).
Definition target_device.h:61
bool pid_random
True if lower 32-bit of Provisioned ID is random.
Definition target_device.h:58
uint16_t max_read_len
Maximum Read Length (MRL).
Definition target_device.h:67
uint64_t pid
Provisioned ID.
Definition target_device.h:50
uint8_t supported_hdr
Bit mask of supported HDR modes (0 - 7).
Definition target_device.h:78
uint8_t static_addr
I3C target address.
Definition target_device.h:47
bool enable
If the hardware is to act as a target device on the bus.
Definition target_device.h:39
uint16_t max_write_len
Maximum Write Length (MWL).
Definition target_device.h:70
uint8_t dcr
Device Characteristics Register (DCR).
Definition target_device.h:64
Definition target_device.h:109
int(* stop_cb)(struct i3c_target_config *config)
Function called when a stop condition is observed after a start condition addressed to a particular d...
Definition target_device.h:211
int(* write_received_cb)(struct i3c_target_config *config, uint8_t val)
Function called when a write to the device is continued.
Definition target_device.h:147
int(* read_requested_cb)(struct i3c_target_config *config, uint8_t *val)
Function called when a read from the device is initiated.
Definition target_device.h:170
int(* write_requested_cb)(struct i3c_target_config *config)
Function called when a write to the device is initiated.
Definition target_device.h:126
int(* read_processed_cb)(struct i3c_target_config *config, uint8_t *val)
Function called when a read from the device is continued.
Definition target_device.h:193
Structure describing a device that supports the I3C target API.
Definition target_device.h:92
const struct i3c_target_callbacks * callbacks
Callback functions.
Definition target_device.h:106
sys_snode_t node
Private, do not modify.
Definition target_device.h:94
uint8_t address
Address for this target device.
Definition target_device.h:103
uint8_t flags
Flags for the target device defined by I3C_TARGET_FLAGS_* constants.
Definition target_device.h:100
Definition target_device.h:214
int(* driver_unregister)(const struct device *dev)
Definition target_device.h:216
int(* driver_register)(const struct device *dev)
Definition target_device.h:215
Misc utilities.