vmodem/at/at_msg.c

   1 /*
   2  *  telephony-emulator
   3  *
   4  * Copyright (c) 2000 - 2011 Samsung Electronics Co., Ltd. All rights reserved.
   5  *
   6  * Contact:
   7  * Sooyoung Ha <yoosah.ha@samsung.com>
   8  * Sungmin Ha <sungmin82.ha@samsung.com>
   9  * YeongKyoon Lee <yeongkyoon.lee@samsung.com>
  10  *
  11  * This library is free software; you can redistribute it and/or modify it under
  12  * the terms of the GNU Lesser General Public License as published by the
  13  * Free Software Foundation; either version 2.1 of the License, or (at your option)
  14  * any later version.
  15  *
  16  * This library is distributed in the hope that it will be useful, but WITHOUT ANY
  17  * WARRANTY; without even the implied warranty of MERCHANTABILITY or
  18  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
  19  * License for more details.
  20  *
  21  * You should have received a copy of the GNU Lesser General Public License
  22  * along with this library; if not, write to the Free Software Foundation, Inc., 51
  23  * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  24  *
  25  * Contributors:
  26  * - S-Core Co., Ltd
  27  *
  28  */
  29
  30 /*
  31 /////////////////////////////////////////////////////////////////////
  32 // at_msg.c
  33 */
  34
  35 #include <stdlib.h>
  36 #include <string.h>
  37
  38 #include "at_msg.h"
  39
  40 static HDLCFrame_t s_FrameSentInfo;
  41 static HDLCFrame_t s_FrameRecvInfo;
  42
  43 // Last sent HDLC frame info
  44 void ATSetLastSentHDLCFrameInfo(HDLCFrame_t const* pframe)
  45 {
  46         s_FrameSentInfo.m_CtrlInfo = pframe->m_CtrlInfo;
  47         s_FrameSentInfo.m_Length = pframe->m_Length;
  48 }
  49
  50 HDLCFrame_t const* ATGetLastSentHDLCFrameInfo(void)
  51 {
  52         return &s_FrameSentInfo;
  53 }
  54
  55 // Last receive HDLC frame info
  56 void ATSetLastRecvHDLCFrameInfo(HDLCFrame_t const* pframe)
  57 {
  58 //      TRACE(MSGL_VGSM_INFO, "\n");
  59         s_FrameRecvInfo.m_CtrlInfo = pframe->m_CtrlInfo;
  60         s_FrameRecvInfo.m_Length = pframe->m_Length;
  61 }
  62
  63 HDLCFrame_t const* ATGetLastRecvHDLCFrameInfo(void)
  64 {
  65         return &s_FrameRecvInfo;
  66 }
  67
  68 static char* s_ATSentInfo;
  69 static char* s_ATRecvInfo;
  70
  71 // Last sent AT frame info
  72 void SetLastSentAT(char* atmsg)
  73 {
  74         s_ATSentInfo = atmsg;
  75 }
  76
  77 char* GetLastSentAT(void)
  78 {
  79         return s_ATSentInfo;
  80 }
  81
  82 // Last recv AT info
  83 void SetLastRecvAT(char* atmsg)
  84 {
  85         s_ATRecvInfo = atmsg;
  86 }
  87
  88 char* GetLastRecvAT(void)
  89 {
  90         return s_ATRecvInfo;
  91 }
  92
  93 // For multi HDLC frame.
  94 typedef struct tagHDLCNode {
  95         struct tagHDLCNode* m_pNext;
  96         HDLCFrame_t m_HDLCNode;
  97 } HDLCNode;
  98
  99 HDLCNode* g_ATpHead = NULL;
 100 HDLCNode* g_ATpTail = NULL;
 101
 102 void ATFreeAllMultiNodeList(void)
 103 {
 104         TRACE(MSGL_VGSM_INFO, "\n");
 105
 106         HDLCNode* pnode_tmp;
 107         HDLCNode* pnode = g_ATpHead;
 108         while (pnode) {
 109                 pnode_tmp = pnode;
 110                 pnode = pnode->m_pNext;
 111
 112                 // free data
 113                 if (pnode_tmp->m_HDLCNode.m_pValue)
 114                         free(pnode_tmp->m_HDLCNode.m_pValue);
 115                 free(pnode_tmp);
 116         }
 117
 118         g_ATpHead = g_ATpTail = NULL;
 119 }
 120
 121 /*      ++ 2008-09-29.
 122         ++ Name : PushHDLCMultiFrameInfo
 123         ++ Args : HDLCFrame_t const* pframe
 124         ++ Multi frame ÀÏ ¶§, ID¸¦ check ÇÏ´Â ºÎºÐÀÌ ¾ø´Ù.
 125         ++ ID ºñ±³ÇØ¼ ÀÌ°ÍÀÌ single messageÀÎÁö multiple messageÀÎÁö ÆÇ´ÜÇÏ´Â ºÎºÐÀÌ ÇÊ¿äÇÏ´Ù.
 126 */
 127 void ATPushHDLCMultiFrameInfo(HDLCFrame_t const* pframe)
 128 {
 129         TRACE(MSGL_VGSM_INFO, "\n");
 130         if (!pframe)
 131                 return;
 132
 133         HDLCNode* pnode = malloc(sizeof(HDLCNode));
 134
 135         if (!pnode)
 136                 return;
 137
 138         memset(pnode, 0, sizeof(HDLCNode));
 139
 140         pnode->m_HDLCNode.m_Length = pframe->m_Length;
 141         pnode->m_HDLCNode.m_CtrlInfo = pframe->m_CtrlInfo;
 142
 143         if (pframe->m_Length - 3 > 0) {
 144                 pnode->m_HDLCNode.m_pValue = malloc(pframe->m_Length - 3);
 145                 memcpy(pnode->m_HDLCNode.m_pValue, pframe->m_pValue, pframe->m_Length - 3);
 146         }
 147
 148         if (!g_ATpHead) {
 149                 g_ATpHead = pnode;
 150         } else {
 151                 if (g_ATpTail)
 152                         g_ATpTail->m_pNext = pnode;
 153         }
 154
 155         g_ATpTail = pnode;
 156 }
 157
 158 HDLCFrame_t const* ATGetLastRecvHDLCMultiFrameInfo(void)
 159 {
 160 //      TRACE(MSGL_VGSM_INFO, "\n");
 161
 162         if (g_ATpTail)
 163                 return &(g_ATpTail->m_HDLCNode);
 164
 165         return NULL;
 166 }
 167
 168 char* ConvertHDLCMultiFrameToAT(void)
 169 {
 170         TRACE(MSGL_VGSM_INFO, "\n");
 171
 172         unsigned char* atmsg_data = NULL;
 173         unsigned char* ptr = NULL;
 174         int at_size = 0;
 175         HDLCNode* pnode = g_ATpHead;
 176
 177         while (pnode) {
 178                 at_size += pnode->m_HDLCNode.m_Length - 3;
 179                 pnode = pnode->m_pNext;
 180         }
 181
 182         if (at_size > 0) {
 183                 atmsg_data = malloc(at_size);
 184                 ptr = atmsg_data;
 185                 pnode = g_ATpHead;
 186                 while (pnode) {
 187                         memcpy(ptr, pnode->m_HDLCNode.m_pValue, pnode->m_HDLCNode.m_Length - 3);
 188                         ptr += pnode->m_HDLCNode.m_Length - 3;
 189
 190                         pnode = pnode->m_pNext;
 191                 }
 192         }
 193
 194         ATFreeAllMultiNodeList();
 195
 196         return (char*)atmsg_data;
 197 }
 198