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/*
* Arm SCP/MCP Software
* Copyright (c) 2015-2018, Arm Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*
* Description:
* System Control and Management Interface (SCMI) support.
*/
#ifndef MOD_INTERNAL_SCMI_H
#define MOD_INTERNAL_SCMI_H
#include <stddef.h>
#include <stdint.h>
#include <mod_scmi.h>
#define SCMI_VERSION 0x10000
#define SCMI_MESSAGE_HEADER_MESSAGE_ID_POS 0
#define SCMI_MESSAGE_HEADER_PROTOCOL_ID_POS 10
#define SCMI_MESSAGE_HEADER_TOKEN_POS 18
#define SCMI_MESSAGE_HEADER_MESSAGE_ID_MASK \
(UINT32_C(0x3FF) << SCMI_MESSAGE_HEADER_MESSAGE_ID_POS)
#define SCMI_MESSAGE_HEADER_PROTOCOL_ID_MASK \
(UINT32_C(0xFF) << SCMI_MESSAGE_HEADER_PROTOCOL_ID_POS)
#define SCMI_MESSAGE_HEADER_TOKEN_MASK \
(UINT32_C(0x3FF) << SCMI_MESSAGE_HEADER_TOKEN_POS)
#define SCMI_MESSAGE_HEADER(MESSAGE_ID, PROTOCOL_ID, TOKEN) \
((((MESSAGE_ID) << SCMI_MESSAGE_HEADER_MESSAGE_ID_POS) & \
SCMI_MESSAGE_HEADER_MESSAGE_ID_MASK) | \
(((PROTOCOL_ID) << SCMI_MESSAGE_HEADER_PROTOCOL_ID_POS) & \
SCMI_MESSAGE_HEADER_PROTOCOL_ID_MASK) | \
(((TOKEN) << SCMI_MESSAGE_HEADER_TOKEN_POS) & \
SCMI_MESSAGE_HEADER_TOKEN_POS))
/* SCMI service context */
struct scmi_service_ctx {
/* Pointer to SCMI service configuration data */
const struct mod_scmi_service_config *config;
/*
* Identifier of the transport entity used by the service to read/respond
* to SCMI messages.
*/
fwk_id_t transport_id;
/* Pointer to the transport API used to read and respond to messages */
const struct mod_scmi_to_transport_api *transport_api;
/* Copy of the pointer to the 'respond' function within the transport API */
int (*respond)(fwk_id_t transport_id, const void *payload, size_t size);
/* SCMI identifier of the protocol processing the current message */
unsigned int scmi_protocol_id;
/* SCMI identifier of the message currently being processed */
unsigned int scmi_message_id;
};
#endif /* MOD_INTERNAL_SCMI_H */
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