116 lines
4.3 KiB
C
116 lines
4.3 KiB
C
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/*****************************************************************************
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* Copyright Statement:
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* --------------------
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* This software is protected by Copyright and the information contained
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* herein is confidential. The software may not be copied and the information
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* contained herein may not be used or disclosed except with the written
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* permission of MediaTek Inc. (C) 2008
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*
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* BY OPENING THIS FILE, BUYER HEREBY UNEQUIVOCALLY ACKNOWLEDGES AND AGREES
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* THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK SOFTWARE")
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* RECEIVED FROM MEDIATEK AND/OR ITS REPRESENTATIVES ARE PROVIDED TO BUYER ON
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* AN "AS-IS" BASIS ONLY. MEDIATEK EXPRESSLY DISCLAIMS ANY AND ALL WARRANTIES,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT.
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* NEITHER DOES MEDIATEK PROVIDE ANY WARRANTY WHATSOEVER WITH RESPECT TO THE
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* SOFTWARE OF ANY THIRD PARTY WHICH MAY BE USED BY, INCORPORATED IN, OR
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* SUPPLIED WITH THE MEDIATEK SOFTWARE, AND BUYER AGREES TO LOOK ONLY TO SUCH
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* THIRD PARTY FOR ANY WARRANTY CLAIM RELATING THERETO. MEDIATEK SHALL ALSO
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* NOT BE RESPONSIBLE FOR ANY MEDIATEK SOFTWARE RELEASES MADE TO BUYER'S
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* SPECIFICATION OR TO CONFORM TO A PARTICULAR STANDARD OR OPEN FORUM.
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*
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* BUYER'S SOLE AND EXCLUSIVE REMEDY AND MEDIATEK'S ENTIRE AND CUMULATIVE
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* LIABILITY WITH RESPECT TO THE MEDIATEK SOFTWARE RELEASED HEREUNDER WILL BE,
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* AT MEDIATEK'S OPTION, TO REVISE OR REPLACE THE MEDIATEK SOFTWARE AT ISSUE,
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* OR REFUND ANY SOFTWARE LICENSE FEES OR SERVICE CHARGE PAID BY BUYER TO
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* MEDIATEK FOR SUCH MEDIATEK SOFTWARE AT ISSUE.
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*
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* THE TRANSACTION CONTEMPLATED HEREUNDER SHALL BE CONSTRUED IN ACCORDANCE
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* WITH THE LAWS OF THE STATE OF CALIFORNIA, USA, EXCLUDING ITS CONFLICT OF
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* LAWS PRINCIPLES. ANY DISPUTES, CONTROVERSIES OR CLAIMS ARISING THEREOF AND
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* RELATED THERETO SHALL BE SETTLED BY ARBITRATION IN SAN FRANCISCO, CA, UNDER
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* THE RULES OF THE INTERNATIONAL CHAMBER OF COMMERCE (ICC).
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*
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*****************************************************************************/
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#ifndef __SYSENV_UTIL_H___
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#define __SYSENV_UTIL_H___
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define SYSENV_LOG_TAG "SYSENV"
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#include <log/log.h>
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#define ERR_LOG(format, args...) \
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ALOGE("[%s]%s():%d , " format, SYSENV_LOG_TAG, __FUNCTION__, __LINE__, ##args)
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#define WARN_LOG(format, args...) \
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ALOGW("[%s]%s():%d , " format, SYSENV_LOG_TAG, __FUNCTION__, __LINE__, ##args)
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#define INFO_LOG(format, args...) \
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ALOGI("[%s]%s():%d , " format, SYSENV_LOG_TAG, __FUNCTION__, __LINE__, ##args)
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#define DEBUG_LOG(format, args...) \
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ALOGD("[%s]%s():%d , " format, SYSENV_LOG_TAG, __FUNCTION__, __LINE__, ##args)
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#define CFG_ENV_SIZE 0x4000 /*16KB*/
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#define CFG_ENV_RW_OFFSET 0x20000
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#define CFG_ENV_RO_OFFSET 0x24000
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#define CFG_ENV_DATA_SIZE (CFG_ENV_SIZE-sizeof(g_env[area].checksum)-sizeof(g_env[area].sig_head)-sizeof(g_env[area].sig_tail))
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#define CFG_ENV_DATA_OFFSET (sizeof(g_env[area].sig_head))
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#define CFG_ENV_SIG_1_OFFSET (CFG_ENV_SIZE - sizeof(g_env[area].checksum)-sizeof(g_env[area].sig_tail))
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#define CFG_ENV_CHECKSUM_OFFSET (CFG_ENV_SIZE - sizeof(g_env[area].checksum))
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#define TAG_UEVENT_PART_CNT "NPARTS"
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#define TAG_UEVENT_PART_NAME "PARTNAME"
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#define ENV_SIG "ENV_v1"
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#define DATA_FREE_SIZE_TH_DEFAULT (50*1024*1024)
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struct env_struct {
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char sig_head[8];
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char *env_data;
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char sig_tail[8];
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int checksum;
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};
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enum {
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SYSENV_RW_AREA = 0,
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SYSENV_RO_AREA,
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SYSENV_AREA_MAX,
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};
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/* only used for user/kernel space sysenv coexist mechanism, removed if kernel module is phased out - start*/
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#define KERNEL_SYSENV_EXIST
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#ifdef KERNEL_SYSENV_EXIST
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#define ENV_MAGIC 'e'
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#define ENV_READ _IOW(ENV_MAGIC, 1, int)
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#define ENV_WRITE _IOW(ENV_MAGIC, 2, int)
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#define ENV_SET_PID _IOW(ENV_MAGIC, 3, int)
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#define ENV_USER_INIT _IOW(ENV_MAGIC, 4, int)
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#define TAG_SET_ENV "SYSENV_SET_ENV"
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#define TAG_SHOW_ALL "SYSENV_SHOW_ALL"
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struct env_ioctl
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{
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char *name;
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int name_len;
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char *value;
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int value_len;
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};
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#endif
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const char *sysenv_get(const char *name);
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const char *sysenv_get_static(const char *name);
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int sysenv_set(const char *name, const char *value);
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int sysenv_set_static(const char *name, const char *value);
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char* sysenv_get_all(unsigned int area);
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#ifdef __cplusplus
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} // extern "C"
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#endif
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#endif // __SYSENV_UTIL_H___
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