/* SPDX-License-Identifier: BSD-2-Clause */
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/*
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* Copyright (c) 2019-2021, Linaro Limited
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*/
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#ifndef PTA_SCMI_CLIENT_H
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#define PTA_SCMI_CLIENT_H
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#define PTA_SCMI_UUID { 0xa8cfe406, 0xd4f5, 0x4a2e, \
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{ 0x9f, 0x8d, 0xa2, 0x5d, 0xc7, 0x54, 0xc0, 0x99 } }
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#define PTA_SCMI_NAME "PTA-SCMI"
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/*
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* PTA_SCMI_CMD_CAPABILITIES - Get channel capabilities
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*
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* [out] value[0].a: Capabilities bit mask (PTA_SCMI_CAPS_*)
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* [out] value[0].b: Extended capabilities or 0
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*/
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#define PTA_SCMI_CMD_CAPABILITIES 0
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/*
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* PTA_SCMI_CMD_PROCESS_SMT_CHANNEL - Process SCMI message in SMT buffer
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*
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* [in] value[0].a: Channel handle
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*
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* Shared memory used for SCMI message/response exhange is expected
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* already identified and bound to channel handle in both SCMI agent
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* and SCMI server (OP-TEE) parts.
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* The memory uses SMT header to carry SCMI meta-data (protocol ID and
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* protocol message ID).
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*/
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#define PTA_SCMI_CMD_PROCESS_SMT_CHANNEL 1
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/*
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* PTA_SCMI_CMD_PROCESS_SMT_CHANNEL_MESSAGE - Process SCMI message in
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* SMT buffer pointed by memref parameters
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*
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* [in] value[0].a: Channel handle
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* [in/out] memref[1]: Message/response buffer (SMT and SCMI payload)
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*
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* Shared memory used for SCMI message/response is a SMT buffer
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* referenced by param[1]. It shall be 128 bytes large to fit response
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* payload whatever message playload size.
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* The memory uses SMT header to carry SCMI meta-data (protocol ID and
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* protocol message ID).
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*/
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#define PTA_SCMI_CMD_PROCESS_SMT_CHANNEL_MESSAGE 2
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/*
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* PTA_SCMI_CMD_GET_CHANNEL_HANDLE - Get handle for an SCMI channel
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*
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* Get a handle for the SCMI channel. This handle value is to be passed
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* as argument to some commands as PTA_SCMI_CMD_PROCESS_*.
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*
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* [in] value[0].a: Channel identifier or 0 if no assigned ID
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* [in] value[0].b: Requested capabilities mask (PTA_SCMI_CAPS_*)
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* [out] value[0].a: Returned channel handle
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*/
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#define PTA_SCMI_CMD_GET_CHANNEL_HANDLE 3
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/*
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* Capabilities
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*/
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/* Channel supports shared memory using the SMT header protocol */
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#define PTA_SCMI_CAPS_SMT_HEADER BIT32(0)
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#endif /* SCMI_PTA_SCMI_CLIENT_H */
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