3 * Copyright (c) 2012 Samsung Electronics Co., Ltd.
5 * Licensed under the Apache License, Version 2.0 (the License);
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
25 #include <device-node.h>
28 #include "haptic_module_log.h"
31 #define MAX_LEVEL 255.0f
32 #define DEFAULT_EFFECT_HANDLE 0x02
37 #define PREDEF_HAPTIC "haptic"
50 unsigned char **ppbuffer;
57 static BUFFER gbuffer;
59 static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
61 static int _check_valid_haptic_format(HapticFile *file)
63 if (file->chunkID != HEADER_ID)
66 if (file->fmt.chunkID != FMT_ID)
69 if (file->data.chunkID != DATA_ID)
75 static int __haptic_predefine_action(int handle, int prop, int val)
82 snprintf(buf_pid, sizeof(buf_pid), "%d", getpid());
83 snprintf(buf_prop, sizeof(buf_prop), "%d", prop);
84 snprintf(buf_handle, sizeof(buf_handle), "%d", handle);
85 snprintf(buf_val, sizeof(buf_val), "%d", val);
87 MODULE_LOG("pid : %s(%d), prop : %s, handle : %s", buf_pid, pthread_self(), buf_prop, buf_handle);
88 return __haptic_call_predef_action(PREDEF_HAPTIC, 4, buf_pid, buf_prop, buf_handle, buf_val);
91 static int _create_thread(void* data, void*(*func)(void*))
94 MODULE_ERROR("pthread already created");
98 if (pthread_create(&tid, NULL, func, data) != 0) {
99 MODULE_ERROR("pthread_create is failed : %s", strerror(errno));
106 static int _cancel_thread(void)
112 MODULE_LOG("pthread not initialized");
116 MODULE_LOG("cancel thread!!!");
120 while (pthread_mutex_trylock(&mutex) == EBUSY) {
122 MODULE_LOG("Already locked..");
124 __haptic_predefine_action(gbuffer.handle, STOP, NULL);
125 pthread_mutex_unlock(&mutex);
127 if ((ret = pthread_cancel(tid)) < 0) {
128 MODULE_ERROR("pthread_cancel is failed : %s, ret(%d)", strerror(errno), ret);
132 if (pthread_join(tid, (void**)&ptr) < 0) {
134 MODULE_ERROR("pthread_join is failed : %s", strerror(errno));
139 if (ptr == PTHREAD_CANCELED) {
140 MODULE_LOG("pthread canceled");
142 MODULE_LOG("pthread already finished");
148 static void __clean_up(void *arg)
150 BUFFER *pbuffer = (BUFFER*)arg;
153 MODULE_LOG("clean up handler!!! : %d", tid);
157 for (i = 0; i < pbuffer->channels; ++i) {
158 free(pbuffer->ppbuffer[i]);
159 pbuffer->ppbuffer[i] = NULL;
162 free(pbuffer->ppbuffer);
163 pbuffer->ppbuffer = NULL;
165 pbuffer->channels = 0;
169 static void* __play_cb(void *arg)
171 BUFFER *pbuffer = (BUFFER*)arg;
174 unsigned char prev = -1;
176 MODULE_LOG("Start thread");
178 pthread_cleanup_push(__clean_up, arg);
180 /* Copy buffer from source buffer */
181 for (i = 0; i < pbuffer->iteration; i++) {
182 for (j = 0; j < pbuffer->length; ++j) {
183 for (k = 0; k < pbuffer->channels; ++k) {
184 pthread_mutex_lock(&mutex);
186 pthread_mutex_unlock(&mutex);
187 pthread_exit((void*)0);
189 ch = pbuffer->ppbuffer[k][j];
191 __haptic_predefine_action(pbuffer->handle, LEVEL, ch);
194 pthread_mutex_unlock(&mutex);
195 usleep(BITPERMS * 1000);
200 pthread_cleanup_pop(1);
201 pthread_exit((void *)0);
204 int GetHapticLevelMax(int *max)
207 status = device_get_property(DEVICE_TYPE_VIBRATOR, PROP_VIBRATOR_LEVEL_MAX, max);
209 MODULE_ERROR("device_get_property fail : %d", status);
215 int InitializeBuffer(unsigned char *vibe_buffer, int max_bufsize)
219 if (max_bufsize < sizeof(HapticFile)) {
220 MODULE_ERROR("buffer lacks a memory : size(%d) minimum size(%d)",
221 max_bufsize, sizeof(HapticFile));
225 memset(vibe_buffer, 0, sizeof(char)*max_bufsize);
227 pfile = (HapticFile*)vibe_buffer;
229 pfile->chunkID = HEADER_ID;
230 pfile->chunkSize = sizeof(HapticFile);
231 pfile->fmt.chunkID = FMT_ID;
232 pfile->fmt.chunkSize = sizeof(FormatChunk);
233 pfile->fmt.wChannels = 1;
234 pfile->fmt.wBlockAlign = 1; // wChannels*1byte
235 pfile->fmt.dwMagnitude = 99;
236 pfile->fmt.dwDuration = 0;
237 pfile->data.chunkID = DATA_ID;
238 pfile->data.chunkSize = sizeof(DataChunk);
242 int InsertElement(unsigned char *vibe_buffer, int max_bufsize, HapticElement *element)
251 pfile = (HapticFile*)vibe_buffer;
252 if (_check_valid_haptic_format(pfile) < 0) {
253 MODULE_ERROR("this buffer is not HapticFormat");
257 duration = element->duration/BITPERMS;
258 level = (unsigned char)((unsigned int)element->level*MAX_LEVEL/100);
260 databuf = max_bufsize - sizeof(HapticFile);
261 needbuf = (pfile->fmt.dwDuration + duration)*pfile->fmt.wBlockAlign;
262 MODULE_LOG("Need buffer size : %d", needbuf);
264 if (databuf < needbuf) {
265 MODULE_ERROR("buffer lacks a memory : data buf(%d), need buf(%d)", databuf, needbuf);
269 for (i = pfile->fmt.dwDuration; i < pfile->fmt.dwDuration+duration; i++) {
270 pfile->data.pData[i] = level;
273 pfile->chunkSize = sizeof(HapticFile)+needbuf ;
274 pfile->fmt.dwDuration = pfile->fmt.dwDuration+duration;
275 pfile->data.chunkSize = sizeof(DataChunk)+needbuf;
279 int GetBufferSize(const unsigned char *vibe_buffer, int *size)
283 pfile = (HapticFile*)vibe_buffer;
284 if (_check_valid_haptic_format(pfile) < 0) {
285 MODULE_ERROR("this buffer is not HapticFormat");
289 *size = pfile->chunkSize;
293 int GetBufferDuration(const unsigned char *vibe_buffer, int *duration)
297 pfile = (HapticFile*)vibe_buffer;
298 if (_check_valid_haptic_format(pfile) < 0) {
299 MODULE_ERROR("this buffer is not HapticFormat");
303 *duration = pfile->fmt.dwDuration;
307 int PlayOneshot(int handle, int duration, int level)
312 char buf_duration[32];
315 if (_cancel_thread() < 0) {
316 MODULE_ERROR("_cancel_thread fail");
320 snprintf(buf_pid, sizeof(buf_pid), "%d", getpid());
321 snprintf(buf_prop, sizeof(buf_prop), "%d", ONESHOT);
322 snprintf(buf_handle, sizeof(buf_handle), "%d", handle);
323 snprintf(buf_duration, sizeof(buf_duration), "%d", duration);
324 snprintf(buf_level, sizeof(buf_level), "%d", level);
326 MODULE_LOG("pid : %s, prop : %s, handle : %s", buf_pid, buf_prop, buf_handle);
327 return __haptic_call_predef_action(PREDEF_HAPTIC, 5, buf_pid, buf_prop,
328 buf_handle, buf_duration, buf_level);
331 int PlayBuffer(int handle, const unsigned char *vibe_buffer, int iteration, int level)
334 unsigned char **ppbuffer;
335 unsigned int channels, length, align;
339 pfile = (HapticFile*)vibe_buffer;
340 if (_check_valid_haptic_format(pfile) < 0) {
341 MODULE_ERROR("this buffer is not HapticFormat");
346 This code does not support handle and multi channel concept.
347 Only this code adds to test for playing file. */
349 if (_cancel_thread() < 0) {
350 MODULE_ERROR("_cancel_thread fail");
354 channels = pfile->fmt.wChannels;
355 align = pfile->fmt.wBlockAlign;
356 length = (pfile->data.chunkSize-8)/align;
357 MODULE_LOG("channels : %d, length : %d, align : %d, level : %d", channels, length, align, level);
360 ppbuffer = (unsigned char**)malloc(sizeof(unsigned char*)*channels);
361 for (i = 0; i < channels; ++i) {
362 ppbuffer[i] = (unsigned char*)malloc(sizeof(unsigned char)*length);
363 memset(ppbuffer[i], 0, sizeof(unsigned char)*length);
366 /* Copy buffer from source buffer */
367 for (i = 0; i < length; ++i) {
368 for (j = 0; j < channels; ++j) {
369 data = (unsigned char)(pfile->data.pData[i*align+j]);
370 ppbuffer[j][i] = (unsigned char)(data*level/0xFF);
371 MODULE_LOG("ppbuffer[%2d][%2d] : data(%x) -> (%x)", j, i, data, ppbuffer[j][i]);
375 gbuffer.handle = handle;
376 gbuffer.ppbuffer = ppbuffer;
377 gbuffer.channels = channels;
378 gbuffer.length = length;
379 gbuffer.iteration = iteration;
381 __haptic_predefine_action(gbuffer.handle, PLAY, NULL);
384 if (_create_thread(&gbuffer, __play_cb) < 0) {
385 MODULE_ERROR("_create_thread fail");
398 if (_cancel_thread() < 0) {
399 MODULE_ERROR("_cancel_thread fail");
403 snprintf(buf_pid, sizeof(buf_pid), "%d", getpid());
404 snprintf(buf_prop, sizeof(buf_prop), "%d", STOP);
405 snprintf(buf_handle, sizeof(buf_handle), "%d", handle);
407 MODULE_LOG("pid : %s, prop : %s, handle : %s", buf_pid, buf_prop, buf_handle);
408 return __haptic_call_predef_action(PREDEF_HAPTIC, 3, buf_pid, buf_prop, buf_handle);
411 int OpenDevice(int handle)
417 snprintf(buf_pid, sizeof(buf_pid), "%d", getpid());
418 snprintf(buf_prop, sizeof(buf_prop), "%d", OPEN);
419 snprintf(buf_handle, sizeof(buf_handle), "%d", handle);
421 MODULE_LOG("pid : %s, prop : %s, handle : %s", buf_pid, buf_prop, buf_handle);
422 return __haptic_call_predef_action(PREDEF_HAPTIC, 3, buf_pid, buf_prop, buf_handle);
425 int CloseDevice(int handle)
431 if (_cancel_thread() < 0) {
432 MODULE_ERROR("_cancel_thread fail");
436 snprintf(buf_pid, sizeof(buf_pid), "%d", getpid());
437 snprintf(buf_prop, sizeof(buf_prop), "%d", CLOSE);
438 snprintf(buf_handle, sizeof(buf_handle), "%d", handle);
440 MODULE_LOG("pid : %s, prop : %s, handle : %s", buf_pid, buf_prop, buf_handle);
441 return __haptic_call_predef_action(PREDEF_HAPTIC, 3, buf_pid, buf_prop, buf_handle);
444 int GetState(int handle, int *state)
446 if (gbuffer.handle == handle) {