3f2bc4d6eb
msm-2.6.38: tag AU_LINUX_ANDROID_GINGERBREAD.02.03.04.00.142 Signed-off-by: Bryan Huntsman <bryanh@codeaurora.org>
113 lines
3.3 KiB
C
113 lines
3.3 KiB
C
/* Qualcomm TrustZone communicator driver
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*
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* Copyright (c) 2011, Code Aurora Forum. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef __TZCOMI_H_
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#define __TZCOMI_H_
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#include <linux/types.h>
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enum tz_sched_cmd_id {
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TZ_SCHED_CMD_ID_INVALID = 0,
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TZ_SCHED_CMD_ID_INIT_SB_OUT, /**< Initialize the shared buffer */
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TZ_SCHED_CMD_ID_INIT_SB_LOG, /**< Initialize the logging shared buf */
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TZ_SCHED_CMD_ID_UNKNOWN = 0x7FFFFFFE,
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TZ_SCHED_CMD_ID_MAX = 0x7FFFFFFF
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};
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enum tz_sched_cmd_type {
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TZ_SCHED_CMD_INVALID = 0,
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TZ_SCHED_CMD_NEW, /** New TZ Scheduler Command */
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TZ_SCHED_CMD_PENDING, /** Pending cmd...sched will restore stack */
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TZ_SCHED_CMD_COMPLETE, /** TZ sched command is complete */
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TZ_SCHED_CMD_MAX = 0x7FFFFFFF
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};
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enum tz_sched_cmd_status {
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TZ_SCHED_STATUS_INCOMPLETE = 0,
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TZ_SCHED_STATUS_COMPLETE,
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TZ_SCHED_STATUS_MAX = 0x7FFFFFFF
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};
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/** Command structure for initializing shared buffers (SB_OUT
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and SB_LOG)
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*/
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__packed struct tz_pr_init_sb_req_s {
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/** First 4 bytes should always be command id
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* from enum tz_sched_cmd_id */
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uint32_t pr_cmd;
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/** Pointer to the physical location of sb_out buffer */
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uint32_t sb_ptr;
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/** length of shared buffer */
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uint32_t sb_len;
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};
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__packed struct tz_pr_init_sb_rsp_s {
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/** First 4 bytes should always be command id
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* from enum tz_sched_cmd_id */
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uint32_t pr_cmd;
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/** Return code, 0 for success, Approp error code otherwise */
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int32_t ret;
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};
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/**
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* struct tzcom_command - tzcom command buffer
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* @cmd_type: value from enum tz_sched_cmd_type
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* @sb_in_cmd_addr: points to physical location of command
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* buffer
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* @sb_in_cmd_len: length of command buffer
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*/
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__packed struct tzcom_command {
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uint32_t cmd_type;
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uint8_t *sb_in_cmd_addr;
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uint32_t sb_in_cmd_len;
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};
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/**
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* struct tzcom_response - tzcom response buffer
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* @cmd_status: value from enum tz_sched_cmd_status
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* @sb_in_rsp_addr: points to physical location of response
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* buffer
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* @sb_in_rsp_len: length of command response
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*/
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__packed struct tzcom_response {
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uint32_t cmd_status;
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uint8_t *sb_in_rsp_addr;
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uint32_t sb_in_rsp_len;
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};
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/**
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* struct tzcom_callback - tzcom callback buffer
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* @cmd_id: command to run in registered service
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* @sb_out_rsp_addr: points to physical location of response
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* buffer
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* @sb_in_cmd_len: length of command response
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*
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* A callback buffer would be laid out in sb_out as follows:
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*
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* --------------------- <--- struct tzcom_callback
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* | callback header |
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* --------------------- <--- tzcom_callback.sb_out_cb_data_off
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* | callback data |
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* ---------------------
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*/
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__packed struct tzcom_callback {
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uint32_t cmd_id;
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uint32_t sb_out_cb_data_len;
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uint32_t sb_out_cb_data_off;
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};
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#endif /* __TZCOMI_H_ */
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