include/linux/firmware/imx/ipc.h

Source file repositories/reference/linux-study-clean/include/linux/firmware/imx/ipc.h

File Facts

System
Linux kernel
Corpus path
include/linux/firmware/imx/ipc.h
Extension
.h
Size
1521 bytes
Lines
72
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 imx_sc_rpc_msg {
	uint8_t ver;
	uint8_t size;
	uint8_t svc;
	uint8_t func;
};

#ifdef CONFIG_IMX_SCU
/*
 * This is an function to send an RPC message over an IPC channel.
 * It is called by client-side SCFW API function shims.
 *
 * @param[in]     ipc         IPC handle
 * @param[in,out] msg         handle to a message
 * @param[in]     have_resp   response flag
 *
 * If have_resp is true then this function waits for a response
 * and returns the result in msg.
 */
int imx_scu_call_rpc(struct imx_sc_ipc *ipc, void *msg, bool have_resp);

/*
 * This function gets the default ipc handle used by SCU
 *
 * @param[out]	ipc	sc ipc handle
 *
 * @return Returns an error code (0 = success, failed if < 0)
 */
int imx_scu_get_handle(struct imx_sc_ipc **ipc);
#else
static inline int imx_scu_call_rpc(struct imx_sc_ipc *ipc, void *msg,
				   bool have_resp)
{
	return -ENOTSUPP;
}

static inline int imx_scu_get_handle(struct imx_sc_ipc **ipc)
{
	return -ENOTSUPP;
}
#endif
#endif /* _SC_IPC_H */

Annotation

Implementation Notes