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1461cc8043
Let's make sure that both embedded and host side use the same command definitions. To avoid host compilation problems move the definitions into a separate file. BRANCH=none BUG=none TEST=compilation still works. Change-Id: Id0d85a51aebabed0637965b3b19d7ed42c46e75e Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/414945 Reviewed-by: Bill Richardson <wfrichar@chromium.org>
68 lines
2.3 KiB
C
68 lines
2.3 KiB
C
/* Copyright 2015 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#ifndef __EC_INCLUDE_EXTENSION_H
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#define __EC_INCLUDE_EXTENSION_H
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#include <stddef.h>
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#include <stdint.h>
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#include "common.h"
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#include "tpm_vendor_cmds.h"
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/*
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* Type of function handling extension commands.
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*
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* @param buffer As input points to the input data to be processed, as
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* output stores data, processing result.
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* @param command_size Number of bytes of input data
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* @param response_size On input - max size of the buffer, on output - actual
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* number of data returned by the handler.
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*/
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typedef enum vendor_cmd_rc (*extension_handler)(enum vendor_cmd_cc code,
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void *buffer,
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size_t command_size,
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size_t *response_size);
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/*
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* Find handler for an extension command.
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* @param command_code Code associated with a extension command handler.
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* @param buffer Data to be processd by the handler, the same space
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* is used for data returned by the handler.
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* @command_size Size of the input data.
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* @param size On input - max size of the buffer, on output - actual number of
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* data returned by the handler. A single byte return
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* usually indicates an error and contains the error code.
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*/
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uint32_t extension_route_command(uint16_t command_code,
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void *buffer,
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size_t command_size,
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size_t *size);
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/* Pointer table */
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struct extension_command {
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uint16_t command_code;
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extension_handler handler;
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} __packed;
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#define DECLARE_EXTENSION_COMMAND(code, func) \
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static enum vendor_cmd_rc func##_wrap(enum vendor_cmd_cc code, \
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void *cmd_body, \
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size_t cmd_size, \
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size_t *response_size) { \
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func(cmd_body, cmd_size, response_size); \
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return 0; \
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} \
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const struct extension_command __keep __extension_cmd_##code \
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__attribute__((section(".rodata.extensioncmds"))) \
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= {.command_code = code, .handler = func##_wrap }
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#define DECLARE_VENDOR_COMMAND(code, func) \
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const struct extension_command __keep __vendor_cmd_##code \
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__attribute__((section(".rodata.extensioncmds"))) \
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= {.command_code = code, .handler = func}
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#endif /* __EC_INCLUDE_EXTENSION_H */
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