1 /* SPDX-License-Identifier: GPL-2.0+ */
5 * Header file for the IPC implementation.
11 #include <linux/device.h>
12 #include <linux/types.h>
14 #define IMX_SC_RPC_VERSION 1
15 #define IMX_SC_RPC_MAX_MSG 8
20 IMX_SC_RPC_SVC_UNKNOWN = 0,
21 IMX_SC_RPC_SVC_RETURN = 1,
22 IMX_SC_RPC_SVC_PM = 2,
23 IMX_SC_RPC_SVC_RM = 3,
24 IMX_SC_RPC_SVC_TIMER = 5,
25 IMX_SC_RPC_SVC_PAD = 6,
26 IMX_SC_RPC_SVC_MISC = 7,
27 IMX_SC_RPC_SVC_IRQ = 8,
30 struct imx_sc_rpc_msg {
38 * This is an function to send an RPC message over an IPC channel.
39 * It is called by client-side SCFW API function shims.
41 * @param[in] ipc IPC handle
42 * @param[in,out] msg handle to a message
43 * @param[in] have_resp response flag
45 * If have_resp is true then this function waits for a response
46 * and returns the result in msg.
48 int imx_scu_call_rpc(struct imx_sc_ipc *ipc, void *msg, bool have_resp);
51 * This function gets the default ipc handle used by SCU
53 * @param[out] ipc sc ipc handle
55 * @return Returns an error code (0 = success, failed if < 0)
57 int imx_scu_get_handle(struct imx_sc_ipc **ipc);
58 #endif /* _SC_IPC_H */