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- /* SPDX-License-Identifier: GPL-2.0+ */
- /*
- * Copyright 2018 NXP
- *
- * Header file for the IPC implementation.
- */
- #ifndef _SC_IPC_H
- #define _SC_IPC_H
- #include <linux/device.h>
- #include <linux/types.h>
- #define IMX_SC_RPC_VERSION 1
- #define IMX_SC_RPC_MAX_MSG 8
- struct imx_sc_ipc;
- enum imx_sc_rpc_svc {
- IMX_SC_RPC_SVC_UNKNOWN = 0,
- IMX_SC_RPC_SVC_RETURN = 1,
- IMX_SC_RPC_SVC_PM = 2,
- IMX_SC_RPC_SVC_RM = 3,
- IMX_SC_RPC_SVC_TIMER = 5,
- IMX_SC_RPC_SVC_PAD = 6,
- IMX_SC_RPC_SVC_MISC = 7,
- IMX_SC_RPC_SVC_IRQ = 8,
- };
- struct imx_sc_rpc_msg {
- uint8_t ver;
- uint8_t size;
- uint8_t svc;
- uint8_t func;
- };
- /*
- * 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);
- #endif /* _SC_IPC_H */
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