1 /*
2 * EvHandler.c
3 *
4 * Copyright(c) 1998 - 2009 Texas Instruments. All rights reserved.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 *
11 * * Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * * Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in
15 * the documentation and/or other materials provided with the
16 * distribution.
17 * * Neither the name Texas Instruments nor the names of its
18 * contributors may be used to endorse or promote products derived
19 * from this software without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
24 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
25 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
27 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 */
33
34 #define __FILE_ID__ FILE_ID_50
35 #include "IPCKernelApi.h"
36 #include "EvHandler.h"
37 #include "osApi.h"
38 #include "osDebug.h"
39
40 #ifndef _WINDOWS
41 #include "windows_types.h"
42 #else
43 #include <windows.h>
44 #endif /*_WINDOWS*/
45
46 #ifdef EV_HANDLER_DEBUG
47 TI_HANDLE ghEvHandler; /* for debug, remove later*/
48 #endif
49
50 /* ************************** Upper Interface **********************************/
51
EvHandler_Create(TI_HANDLE hOs)52 TI_HANDLE EvHandler_Create (TI_HANDLE hOs)
53 {
54 TEvHandlerObj *pEvHandler;
55
56 PRINT(DBG_INIT_LOUD, (" EvHandlerInit\n"));
57 pEvHandler = os_memoryAlloc(hOs,sizeof(TEvHandlerObj));
58 os_memoryZero(hOs,pEvHandler,sizeof(TEvHandlerObj));
59
60 #ifdef EV_HANDLER_DEBUG
61 ghEvHandler= pEvHandler;
62 PRINTF(DBG_INIT_VERY_LOUD, ("EvHandlerInit: ghEvHandler set to %08X\n", ghEvHandler));
63 #endif
64
65 pEvHandler->hOs = hOs;
66
67 pEvHandler->LastUMEventType = 0xFFFFFFFF;
68
69 return (TI_HANDLE) pEvHandler;
70 }
71
EvHandlerUnload(TI_HANDLE hEvHandler)72 TI_UINT32 EvHandlerUnload (TI_HANDLE hEvHandler)
73 {
74
75 TEvHandlerObj *pEvHandler;
76
77 PRINT(DBG_INIT_LOUD, (" ev_handler_unLoad\n"));
78 pEvHandler = (TEvHandlerObj *)hEvHandler;
79
80 os_memoryFree(pEvHandler->hOs,pEvHandler,sizeof(TEvHandlerObj));
81
82 return TI_OK;
83 }
84
85
EvHandlerRegisterEvent(TI_HANDLE hEvHandler,TI_UINT8 * pData,TI_UINT32 Length)86 TI_UINT32 EvHandlerRegisterEvent(TI_HANDLE hEvHandler, TI_UINT8* pData, TI_UINT32 Length)
87 {
88 TEvHandlerObj *pEvHandler;
89 IPC_EVENT_PARAMS *pEvParams;
90 TI_UINT32 ModuleIndex;
91
92 if( (hEvHandler==NULL) || (pData == NULL)){
93 PRINT(DBG_INIT_ERROR, "EvHandler:EvHandlerRegisterEvent Bad Handle passed \n");
94 return TI_NOK;
95 }
96
97 #ifdef EV_HANDLER_DEBUG
98 if (ghEvHandler != hEvHandler)
99 {
100 return TI_NOK;
101 }
102 #endif
103
104 pEvHandler = (TEvHandlerObj *)hEvHandler;
105 pEvParams = (IPC_EVENT_PARAMS *)pData;
106
107 PRINTF(DBG_INIT_LOUD, (" EvHandlerRegisterEvent EventType = %d \n",pEvParams->uEventType));
108
109 /* used to be: if ( sizeof(IPC_EVENT_PARAMS) != Length)
110 relaxed size checking (okay if output buffer is larger) */
111 if (sizeof(IPC_EVENT_PARAMS) > Length)
112 {
113 PRINTF(DBG_INIT_ERROR, (" EvHandlerRegisterEvent Error sizeof(IPC_EVENT_PARAMS) != Length,"
114 "%d != %d \n",sizeof(IPC_EVENT_PARAMS), (int)Length));
115 return (TI_UINT32)STATUS_INVALID_PARAMETER;
116 }
117
118 if (pEvParams->uEventType >= IPC_EVENT_MAX){
119 PRINTF(DBG_INIT_ERROR, (" EvHandlerRegisterEvent Error - Invalid Event Type = %d \n",
120 pEvParams->uEventType));
121 return (TI_UINT32)STATUS_INVALID_PARAMETER;
122 }
123
124 ModuleIndex = 0;
125
126 while ((ModuleIndex < MAX_REGISTERED_MODULES) &&
127 (pEvHandler->RegistrationArray[pEvParams->uEventType][ModuleIndex].uEventID != NULL))
128 {
129 ModuleIndex++;
130 }
131
132 if (ModuleIndex == MAX_REGISTERED_MODULES)
133 {
134 PRINTF(DBG_INIT_WARNING, (" EvHandlerRegisterEvent %d "
135 "Registration queue full or event already registered!\n",
136 pEvParams->uEventType));
137 return (TI_UINT32)STATUS_INVALID_PARAMETER;
138 }
139
140 os_memoryCopy(pEvHandler->hOs,(TI_UINT8*)&pEvHandler->RegistrationArray[pEvParams->uEventType][ModuleIndex],
141 (TI_UINT8*)pEvParams,Length);
142
143 pEvParams->uEventID = (TI_HANDLE)&pEvHandler->RegistrationArray[pEvParams->uEventType][ModuleIndex];
144
145 pEvHandler->RegistrationArray[pEvParams->uEventType][ModuleIndex].uEventID = pEvParams->uEventID;
146
147 PRINT(DBG_INIT_LOUD, " EvHandlerRegisterEvent Out \n");
148 return STATUS_SUCCESS;
149
150 }
151
152
EvHandlerUnRegisterEvent(TI_HANDLE hEvHandler,TI_HANDLE uEventID)153 TI_UINT32 EvHandlerUnRegisterEvent(TI_HANDLE hEvHandler, TI_HANDLE uEventID)
154 {
155 TEvHandlerObj *pEvHandler;
156 IPC_EVENT_PARAMS *pEvParams;
157 TI_UINT32 ModuleIndex;
158
159 #ifdef EV_HANDLER_DEBUG
160 if (ghEvHandler != hEvHandler )
161 {
162 return TI_NOK;
163 }
164 #endif
165
166 if (uEventID == NULL)
167 {
168 return TI_NOK;
169 }
170
171 pEvHandler = (TEvHandlerObj *)hEvHandler;
172 pEvParams = (IPC_EVENT_PARAMS *)uEventID;
173
174 PRINTF(DBG_INIT_LOUD, (" EvHandlerUnRegisterEvent EventType = %d \n",pEvParams->uEventType));
175
176 if( pEvParams->uEventType >= IPC_EVENT_MAX){
177 PRINTF(DBG_INIT_ERROR, (" EvHandlerRegisterEvent Error Event Type = %d \n",
178 pEvParams->uEventType));
179 return (TI_UINT32)STATUS_INVALID_PARAMETER;
180 }
181
182 ModuleIndex = 0;
183
184 while ((ModuleIndex < MAX_REGISTERED_MODULES) &&
185 (pEvHandler->RegistrationArray[pEvParams->uEventType][ModuleIndex].uEventID != pEvParams->uEventID))
186 {
187 ModuleIndex++;
188 }
189
190 if (ModuleIndex == MAX_REGISTERED_MODULES)
191 {
192 PRINTF(DBG_INIT_ERROR, (" EvHandlerUnRegisterEvent %d "
193 "Registration queue doesn't hold this event!\n",
194 pEvParams->uEventType ));
195 return (TI_UINT32)STATUS_INVALID_PARAMETER;
196 }
197 pEvHandler->RegistrationArray[pEvParams->uEventType][ModuleIndex].uEventID = NULL;
198
199 return STATUS_SUCCESS;
200 }
201
202 /* ************************** Upper Interface End*********************************/
203
204 /* ************************** Bottom Interface **********************************/
205
EvHandlerSendEvent(TI_HANDLE hEvHandler,TI_UINT32 EvType,TI_UINT8 * pData,TI_UINT32 Length)206 TI_UINT32 EvHandlerSendEvent(TI_HANDLE hEvHandler, TI_UINT32 EvType, TI_UINT8* pData, TI_UINT32 Length)
207 {
208 TEvHandlerObj *pEvHandler;
209 IPC_EV_DATA* pNewEvent;
210 TI_UINT32 TailIndex=0;
211 TI_UINT32 ModuleIndex=0;
212
213 PRINTF(DBG_INIT_LOUD, (" EvHandlerSendEvent %d \n", EvType));
214
215 if(hEvHandler == NULL){
216 PRINT(DBG_INIT_ERROR, "EvHandlerSendEvent Bad Handle passed \n");
217 return TI_NOK;
218 }
219
220 #ifdef EV_HANDLER_DEBUG
221 if (ghEvHandler != hEvHandler)
222 {
223 return TI_NOK;
224 }
225 #endif
226
227 pEvHandler = (TEvHandlerObj *)hEvHandler;
228
229 TailIndex = pEvHandler->SendEventArray.TailIndex;
230
231 while ((ModuleIndex < MAX_REGISTERED_MODULES) && (EvType <= IPC_EVENT_MAX))
232 {
233 if (pEvHandler->RegistrationArray[EvType][ModuleIndex].uEventID != NULL )
234 {
235 if(pEvHandler->SendEventArray.Counter == MAX_SEND_EVENTS)
236 {
237 PRINT(DBG_INIT_ERROR, " EvHandlerSendEvent Array Full u Fool! \n");
238 return TI_NOK;
239 }
240
241 pNewEvent = &pEvHandler->SendEventArray.Array[TailIndex];
242
243 /* copy the event parameters and data to the events queue*/
244 os_memoryCopy(pEvHandler->hOs,(TI_UINT8*)&pNewEvent->EvParams,
245 (TI_UINT8*)&pEvHandler->RegistrationArray[EvType][ModuleIndex],
246 sizeof(IPC_EVENT_PARAMS));
247
248 os_memoryZero(pEvHandler->hOs,(TI_UINT8*)pNewEvent->uBuffer, sizeof(pNewEvent->uBuffer));
249
250 os_memoryCopy(pEvHandler->hOs,
251 (TI_UINT8*)pNewEvent->uBuffer,
252 (TI_UINT8*)pData,
253 Length);
254
255 pNewEvent->uBufferSize = Length;
256
257 if(pNewEvent->EvParams.uDeliveryType == DELIVERY_PUSH)
258 {
259 PRINTF(DBG_INIT_LOUD, (" EvHandlerSendEvent %d to OS \n", EvType));
260 PRINTF(DBG_INIT_LOUD, ("EvHandlerSendEvent Matching OS Registered event found at EvType = %d,"
261 "ModuleIndex = %d \n", EvType, ModuleIndex));
262 IPC_EventSend (pEvHandler->hOs,(TI_UINT8*)pNewEvent,sizeof(IPC_EV_DATA));
263 }
264 else {
265
266 pEvHandler->LastUMEventType = EvType;
267 pEvHandler->SendEventArray.TailIndex = (TailIndex+1) % MAX_SEND_EVENTS;
268 pEvHandler->SendEventArray.Counter++;
269 TailIndex = pEvHandler->SendEventArray.TailIndex;
270 PRINTF(DBG_INIT_LOUD, (" EvHandlerSendEvent %d to User Mode \n", EvType));
271 PRINTF(DBG_INIT_LOUD, ("EvHandlerSendEvent Matching User Mode Registered event found at EvType = %d,"
272 "ModuleIndex = %d \n", EvType, ModuleIndex));
273 if (pEvHandler->SendEventArray.Counter == 1)
274 {
275 IPC_EventSend (pEvHandler->hOs,NULL,0);
276 }
277 }
278 } /* end if*/
279
280 ModuleIndex++;
281
282 } /* end of while*/
283
284 return TI_OK;
285 }
286
287 /* ************************** Bottom Interface End **********************************/
288