include/linux/firmware/qcom/qcom_qseecom.h

Source file repositories/reference/linux-study-clean/include/linux/firmware/qcom/qcom_qseecom.h

File Facts

System
Linux kernel
Corpus path
include/linux/firmware/qcom/qcom_qseecom.h
Extension
.h
Size
1824 bytes
Lines
55
Domain
Core OS
Bucket
Core Kernel Interface
Inferred role
Core OS: implementation source
Status
source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

Dependency Surface

Detected Declarations

Annotated Snippet

struct qseecom_client {
	struct auxiliary_device aux_dev;
	u32 app_id;
};

/**
 * qcom_qseecom_app_send() - Send to and receive data from a given QSEE app.
 * @client:   The QSEECOM client associated with the target app.
 * @req:      Request buffer sent to the app (must be TZ memory).
 * @req_size: Size of the request buffer.
 * @rsp:      Response buffer, written to by the app (must be TZ memory).
 * @rsp_size: Size of the response buffer.
 *
 * Sends a request to the QSEE app associated with the given client and read
 * back its response. The caller must provide two DMA memory regions, one for
 * the request and one for the response, and fill out the @req region with the
 * respective (app-specific) request data. The QSEE app reads this and returns
 * its response in the @rsp region.
 *
 * Note: This is a convenience wrapper around qcom_scm_qseecom_app_send().
 * Clients should prefer to use this wrapper.
 *
 * Return: Zero on success, nonzero on failure.
 */
static inline int qcom_qseecom_app_send(struct qseecom_client *client,
					void *req, size_t req_size,
					void *rsp, size_t rsp_size)
{
	return qcom_scm_qseecom_app_send(client->app_id, req, req_size, rsp, rsp_size);
}

#endif /* __QCOM_QSEECOM_H */

Annotation

Implementation Notes