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include: i3c: target_device: add target driver buffer mode

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As title.

Signed-off-by: Alvis Sun <yfsun@nuvoton.com>
This commit is contained in:
Alvis Sun 2024-11-04 10:52:56 +08:00 committed by Benjamin Cabé
parent e512151474
commit bb03d1a472
2 changed files with 48 additions and 0 deletions
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5
drivers/i3c/Kconfig
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@ -33,6 +33,11 @@ config I3C_USE_GROUP_ADDR
Says Y if unsure.
config I3C_TARGET_BUFFER_MODE
bool "I3C target driver for buffer mode"
help
This is an option to enable buffer mode.
menuconfig I3C_USE_IBI
bool "Use In-Band Interrupt (IBI)"
default y

43
include/zephyr/drivers/i3c/target_device.h
View file

@ -202,6 +202,49 @@ struct i3c_target_callbacks {
int (*read_processed_cb)(struct i3c_target_config *config,
uint8_t *val);
#ifdef CONFIG_I3C_TARGET_BUFFER_MODE
/** @brief Function called when a write to the device is completed.
*
* This function is invoked by the controller when it completes
* reception of data from the source buffer to the destination
* buffer in an ongoing write operation to the device.
*
* @param config Configuration structure associated with the
* device to which the operation is addressed.
*
* @param ptr pointer to the buffer that contains the data to be transferred.
*
* @param len the length of the data to be transferred.
*/
void (*buf_write_received_cb)(struct i3c_target_config *config, uint8_t *ptr, uint32_t len);
/** @brief Function called when a read from the device is initiated.
*
* This function is invoked by the controller when the bus is ready to
* provide additional data by buffer for a read operation from the address
* associated with the device.
*
* The value returned in @p **ptr and @p *len will be transmitted. A success
* return shall cause the controller to react to additional read operations.
* An error return shall cause the controller to ignore bus operations until
* a new start condition is received.
*
* @param config the configuration structure associated with the
* device to which the operation is addressed.
*
* @param ptr pointer to storage for the address of data buffer to return
* for the read request.
*
* @param len pointer to storage for the length of the data to be transferred
* for the read request.
*
* @param hdr_mode HDR mode
*
* @return 0 if data has been provided, or a negative error code.
*/
int (*buf_read_requested_cb)(struct i3c_target_config *config, uint8_t **ptr, uint32_t *len,
uint8_t *hdr_mode);
#endif
/**
* @brief Function called when a stop condition is observed after a
* start condition addressed to a particular device.