Changeset 6e09bee in mainline for uspace/app/wacomdump/wacomdump.c
- Timestamp:
- 2012-08-12T21:31:32Z (12 years ago)
- Branches:
- lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export
- Children:
- 91ecaa10
- Parents:
- 5bf6bc70
- File:
-
- 1 edited
-
uspace/app/wacomdump/wacomdump.c (modified) (7 diffs)
Legend:
- Unmodified
- Added
- Removed
-
uspace/app/wacomdump/wacomdump.c
r5bf6bc70 r6e09bee 33 33 #include <stdio.h> 34 34 35 #define BUF_SIZE 3235 #define BUF_SIZE 64 36 36 37 37 #define START_OF_PACKET 128 … … 49 49 #define CMD_QUERY_TOUCH '%' 50 50 51 /* packet_consumer_fn(uint8_t *packet, size_t size) 51 typedef struct isdv4_event isdv4_event_t; 52 53 typedef void (*isdv4_event_fn)(const isdv4_event_t *); 54 55 typedef struct { 56 /* Stylus information */ 57 unsigned int stylus_max_x; 58 unsigned int stylus_max_y; 59 unsigned int stylus_max_pressure; 60 unsigned int stylus_max_xtilt; 61 unsigned int stylus_max_ytilt; 62 bool stylus_tilt_supported; 63 64 /* Touch information */ 65 unsigned int touch_type; 66 unsigned int touch_max_x; 67 unsigned int touch_max_y; 68 69 /* Event state */ 70 bool stylus_in_proximity; 71 bool stylus_is_eraser; 72 bool button1_pressed; 73 bool button2_pressed; 74 75 /* Session to the serial device */ 76 async_sess_t *sess; 77 78 /* Receive buffer state */ 79 uint8_t *buf; 80 size_t buf_size; 81 size_t buf_end; 82 83 /* Callbacks */ 84 isdv4_event_fn emit_event_fn; 85 } isdv4_state_t; 86 87 typedef enum { 88 UNKNOWN, PRESS, RELEASE, PROXIMITY_IN, PROXIMITY_OUT, MOVE 89 } isdv4_event_type_t; 90 91 typedef enum { 92 STYLUS_TIP, STYLUS_ERASER, TOUCH 93 } isdv4_source_type_t; 94 95 typedef struct isdv4_event { 96 isdv4_event_type_t type; 97 isdv4_source_type_t source; 98 unsigned int x; 99 unsigned int y; 100 unsigned int pressure; 101 unsigned int button; 102 } isdv4_event_t; 103 104 static void isdv4_event_init(isdv4_event_t *event) 105 { 106 memset(event, 0, sizeof(isdv4_event_t)); 107 } 108 109 /* packet_consumer_fn(uint8_t *packet, size_t size, isdv4_state_t *state) 52 110 return true if reading of packets should continue */ 53 typedef bool (*packet_consumer_fn)(uint8_t *, size_t );111 typedef bool (*packet_consumer_fn)(uint8_t *, size_t, isdv4_state_t *); 54 112 55 113 static void syntax_print(void) … … 58 116 } 59 117 60 static bool parse_packet(uint8_t *packet, size_t size) 118 static void print_event(const isdv4_event_t *event) 119 { 120 const char *type = NULL; 121 switch (event->type) { 122 case PRESS: 123 type = "PRESS"; 124 break; 125 case RELEASE: 126 type = "RELEASE"; 127 break; 128 case PROXIMITY_IN: 129 type = "PROXIMITY IN"; 130 break; 131 case PROXIMITY_OUT: 132 type = "PROXIMITY OUT"; 133 break; 134 case MOVE: 135 type = "MOVE"; 136 return; 137 case UNKNOWN: 138 type = "UNKNOWN"; 139 break; 140 } 141 142 const char *source = NULL; 143 switch (event->source) { 144 case STYLUS_TIP: 145 source = "stylus tip"; 146 break; 147 case STYLUS_ERASER: 148 source = "stylus eraser"; 149 break; 150 case TOUCH: 151 source = "touch"; 152 break; 153 } 154 155 const char *buttons = "none"; 156 switch (event->button) { 157 case 1: 158 buttons = "button1"; 159 break; 160 case 2: 161 buttons = "button2"; 162 break; 163 case 3: 164 buttons = "both"; 165 break; 166 } 167 168 printf("%s %s %u %u %u %s\n", type, source, event->x, event->y, 169 event->pressure, buttons); 170 } 171 172 static bool parse_event(uint8_t *packet, size_t size, isdv4_state_t *state) 61 173 { 62 174 if (size < 1) { 63 printf("Invalid packet size ");175 printf("Invalid packet size\n"); 64 176 return false; 65 177 } 66 67 178 bool control_packet = ((packet[0] & CONTROL_PACKET) > 0); 68 if (!control_packet) { 69 /* This is an event initiated by the device */ 70 printf("Event"); 71 if (size == 5 || size == 7) { 72 printf(" touch"); 73 if (packet[0] & FINGER1) { 74 printf(" finger1"); 75 } 76 if (packet[0] & FINGER2) { 77 printf(" finger2"); 78 } 79 int x = ((packet[1] & 127) << 7) | (packet[2] & 127); 80 int y = ((packet[3] & 127) << 7) | (packet[4] & 127); 81 printf(" x=%d y=%d", x, y); 82 } 83 else if (size == 9) { 84 printf(" stylus"); 85 if (packet[0] & TIP) { 86 printf(" tip"); 87 } 88 if (packet[0] & BUTTON1) { 89 printf(" button1"); 90 } 91 if (packet[0] & BUTTON2) { 92 printf(" button2"); 93 } 94 if (packet[0] & PROXIMITY) { 95 printf(" proximity"); 96 } 97 int x = ((packet[1] & 127) << 7) | (packet[2] & 124) | ((packet[6] >> 5) & 3); 98 int y = ((packet[3] & 127) << 7) | (packet[4] & 124) | ((packet[6] >> 3) & 3); 99 int xtilt = (packet[8] & 127); 100 int ytilt = (packet[7] & 127); 101 printf(" x=%d y=%d xtilt=%d ytilt=%d", x, y, xtilt, ytilt); 102 } 103 } 104 else { 105 printf("Response"); 106 } 107 108 printf("\n"); 179 if (control_packet) { 180 printf("This is not an event packet\n"); 181 return true; 182 } 183 184 /* This is an event initiated by the device */ 185 isdv4_event_t event; 186 isdv4_event_init(&event); 187 188 /* size_t dbg_ctr;*/ 189 /* printf("Packet: ");*/ 190 /* for (dbg_ctr = 0; dbg_ctr < size; dbg_ctr++) {*/ 191 /* printf("%02hhx ", packet[dbg_ctr]);*/ 192 /* }*/ 193 /* printf("\n");*/ 194 195 if (size == 5 || size == 7) { 196 /* This is a touch event */ 197 bool finger1 = (packet[0] & FINGER1) > 0; 198 event.x = ((packet[1] & 127) << 7) | (packet[2] & 127); 199 event.y = ((packet[3] & 127) << 7) | (packet[4] & 127); 200 event.source = TOUCH; 201 printf("TOUCH finger finger1=%d x=%u y=%u\n", finger1, event.x, event.y); 202 203 if (!state->stylus_in_proximity) { 204 if (!finger1 && state->button1_pressed) { 205 state->button1_pressed = false; 206 207 event.type = RELEASE; 208 event.button = 1; 209 state->emit_event_fn(&event); 210 } 211 else if (finger1 && !state->button1_pressed) { 212 state->button1_pressed = true; 213 214 event.type = PRESS; 215 event.button = 1; 216 state->emit_event_fn(&event); 217 } 218 else { 219 event.type = MOVE; 220 event.button = 1; 221 state->emit_event_fn(&event); 222 } 223 } 224 } 225 else if (size == 9) { 226 /* This is a stylus event */ 227 bool tip = packet[0] & TIP; 228 bool button1 = packet[0] & BUTTON1; 229 bool button2 = packet[0] & BUTTON2; 230 bool proximity = packet[0] & PROXIMITY; 231 event.x = ((packet[1] & 127) << 7) | (packet[2] & 124) | ((packet[6] >> 5) & 3); 232 event.y = ((packet[3] & 127) << 7) | (packet[4] & 124) | ((packet[6] >> 3) & 3); 233 event.pressure = (packet[5] & 127) | ((packet[6] & 7) << 7); 234 235 bool eraser = !tip && button2; 236 printf("STYLUS tip=%d button1=%d button2=%d proximity=%d x=%u y=%u p=%u\n", 237 tip, button1, button2, proximity, event.x, event.y, event.pressure); 238 239 if (proximity && !state->stylus_in_proximity) { 240 /* Stylus came into proximity */ 241 state->stylus_in_proximity = true; 242 state->stylus_is_eraser = eraser; 243 event.source = (state->stylus_is_eraser ? STYLUS_ERASER : STYLUS_TIP); 244 event.type = PROXIMITY_IN; 245 state->emit_event_fn(&event); 246 } 247 else if (!proximity && state->stylus_in_proximity) { 248 /* Stylus came out of proximity */ 249 state->stylus_in_proximity = false; 250 event.source = (state->stylus_is_eraser ? STYLUS_ERASER : STYLUS_TIP); 251 event.type = PROXIMITY_OUT; 252 state->emit_event_fn(&event); 253 } 254 else { 255 /* Proximity state didn't change, but we need to check if it is still eraser */ 256 if (eraser != state->stylus_is_eraser) { 257 event.type = PROXIMITY_OUT; 258 event.source = eraser ? STYLUS_TIP : STYLUS_ERASER; 259 state->emit_event_fn(&event); 260 event.type = PROXIMITY_IN; 261 event.source = eraser ? STYLUS_ERASER : STYLUS_TIP; 262 state->emit_event_fn(&event); 263 state->stylus_is_eraser = eraser; 264 } 265 } 266 267 if (!state->stylus_is_eraser) { 268 if (button1 && !state->button1_pressed) { 269 state->button1_pressed = true; 270 event.type = PRESS; 271 event.source = STYLUS_TIP; 272 event.button = 1; 273 state->emit_event_fn(&event); 274 } 275 else if (!button1 && state->button1_pressed) { 276 state->button1_pressed = false; 277 event.type = RELEASE; 278 event.source = STYLUS_TIP; 279 event.button = 1; 280 state->emit_event_fn(&event); 281 } 282 if (button2 && !state->button2_pressed) { 283 state->button2_pressed = true; 284 event.type = PRESS; 285 event.source = STYLUS_TIP; 286 event.button = 2; 287 state->emit_event_fn(&event); 288 } 289 else if (!button2 && state->button2_pressed) { 290 state->button2_pressed = false; 291 event.type = RELEASE; 292 event.source = STYLUS_TIP; 293 event.button = 2; 294 state->emit_event_fn(&event); 295 } 296 event.type = MOVE; 297 event.source = STYLUS_TIP; 298 event.button = (button1 ? 1 : 0) | (button2 ? 2 : 0); 299 state->emit_event_fn(&event); 300 } 301 else { 302 if (button1 && !state->button1_pressed) { 303 state->button1_pressed = true; 304 event.type = PRESS; 305 event.source = STYLUS_ERASER; 306 event.button = 1; 307 state->emit_event_fn(&event); 308 } 309 else if (!button1 && state->button1_pressed) { 310 state->button1_pressed = false; 311 event.type = RELEASE; 312 event.source = STYLUS_ERASER; 313 event.button = 1; 314 state->emit_event_fn(&event); 315 } 316 event.type = MOVE; 317 event.source = STYLUS_ERASER; 318 event.button = (button1 ? 1 : 0); 319 state->emit_event_fn(&event); 320 } 321 //int xtilt = (packet[8] & 127); 322 //int ytilt = (packet[7] & 127); 323 } 324 109 325 return true; 110 326 } 111 327 112 static bool parse_response_stylus(uint8_t *packet, size_t size) 328 static bool parse_response_stylus(uint8_t *packet, size_t size, 329 isdv4_state_t *state) 113 330 { 114 331 if (size != 11) { … … 158 375 } 159 376 160 static bool parse_response_touch(uint8_t *packet, size_t size) 377 static bool parse_response_touch(uint8_t *packet, size_t size, 378 isdv4_state_t *state) 161 379 { 162 380 if (size != 11) { … … 170 388 } 171 389 172 unsigned int data_id= (packet[0] & 63);390 state->touch_type = (packet[0] & 63); 173 391 unsigned int version = ((packet[9] & 127) << 7) | (packet[10] & 127); 174 392 175 393 unsigned int touch_resolution = packet[1] & 127; 176 unsigned int sensor_id = packet[2] & 7; 177 unsigned int max_x = ((packet[2] >> 5) & 3) | ((packet[3] & 127) << 7) | 394 state->touch_max_x = ((packet[2] >> 5) & 3) | ((packet[3] & 127) << 7) | 178 395 (packet[4] & 124); 179 unsigned intmax_y = ((packet[2] >> 3) & 3) | ((packet[5] & 127) << 7) |396 state->touch_max_y = ((packet[2] >> 3) & 3) | ((packet[5] & 127) << 7) | 180 397 (packet[6] & 124); 181 unsigned int capacitance_res = packet[7] & 127; 182 398 183 399 if (touch_resolution == 0) 184 400 touch_resolution = 10; 185 401 186 if ( max_x == 0 ||max_y == 0) {187 max_x = (1 << touch_resolution);188 max_y = (1 << touch_resolution);189 } 190 191 printf("Touch info: data_id=%u (%s) version=%u sensor_id=%umax_x=%u "192 "max_y=%u capacitance_res=%u\n", data_id, touch_type(data_id), version,193 s ensor_id, max_x, max_y, capacitance_res);402 if (state->touch_max_x == 0 || state->touch_max_y == 0) { 403 state->touch_max_x = (1 << touch_resolution); 404 state->touch_max_y = (1 << touch_resolution); 405 } 406 407 printf("Touch info: data_id=%u (%s) version=%u max_x=%u " 408 "max_y=%u\n", state->touch_type, touch_type(state->touch_type), version, 409 state->touch_max_x, state->touch_max_y); 194 410 return false; 195 411 } 196 412 197 static void read_packets( async_sess_t *sess, packet_consumer_fn consumer)198 { 199 uint8_t buf[BUF_SIZE];200 ssize_t buf_end = 0;201 202 while (true) {203 ssize_t read = char_dev_read(sess, buf + buf_end, BUF_SIZE -buf_end);413 static void read_packets(isdv4_state_t *state, packet_consumer_fn consumer) 414 { 415 bool reading = true; 416 bool silence = true; 417 while (reading) { 418 ssize_t read = char_dev_read(state->sess, state->buf + state->buf_end, 419 state->buf_size - state->buf_end); 204 420 if (read < 0) { 205 421 fprintf(stderr, "Failed reading from serial device\n"); 206 422 return; 207 423 } 208 buf_end += read; 209 210 ssize_t i = 0; 424 state->buf_end += read; 425 426 if (!silence && read == 0) { 427 silence = true; 428 usleep(100000); /* 100 ms */ 429 continue; 430 } 431 else if (read > 0) { 432 silence = false; 433 } 434 435 size_t i = 0; 211 436 212 437 /* Skip data until a start of packet is found */ 213 while (i < buf_end && (buf[i] & START_OF_PACKET) == 0) i++;214 215 s size_t start = i;216 s size_t end = i;217 s size_t processed_end = i;438 while (i < state->buf_end && (state->buf[i] & START_OF_PACKET) == 0) i++; 439 440 size_t start = i; 441 size_t end = i; 442 size_t processed_end = i; 218 443 219 444 /* Process packets one by one */ 220 while ( i <buf_end) {445 while (reading && i < state->buf_end) { 221 446 /* Find a start of next packet */ 222 447 i++; /* We need to skip the first byte with START_OF_PACKET set */ 223 while (i < buf_end && (buf[i] & START_OF_PACKET) == 0) i++;448 while (i < state->buf_end && (state->buf[i] & START_OF_PACKET) == 0) i++; 224 449 end = i; 225 450 226 451 /* If we have whole packet, process it */ 227 if (end - start > 0 && (end != buf_end || read == 0)) { 228 if (!consumer(buf + start, end - start)) { 229 return; 230 } 452 if (end > start && (end != state->buf_end || read == 0)) { 453 reading = consumer(state->buf + start, end - start, state); 231 454 start = end; 232 455 processed_end = end; … … 234 457 } 235 458 236 if (processed_end == 0 && buf_end == BUF_SIZE) {459 if (processed_end == 0 && state->buf_end == BUF_SIZE) { 237 460 fprintf(stderr, "Buffer overflow detected, discarding contents\n"); 238 buf_end = 0;461 state->buf_end = 0; 239 462 } 240 463 241 464 /* Shift the buffer contents to the left */ 242 size_t unprocessed_len = buf_end - processed_end; 243 memcpy(buf, buf + processed_end, unprocessed_len); 244 buf_end = unprocessed_len; 245 } 246 247 /* not reached */ 465 size_t unprocessed_len = state->buf_end - processed_end; 466 memcpy(state->buf, state->buf + processed_end, unprocessed_len); 467 state->buf_end = unprocessed_len; 468 } 248 469 } 249 470 static bool write_command(async_sess_t *sess, uint8_t command) 250 471 { 251 472 return char_dev_write(sess, &command, 1) == 1; 473 } 474 475 static void isdv4_init(isdv4_state_t *state, async_sess_t *sess, 476 uint8_t *buf, size_t buf_size, isdv4_event_fn event_fn) 477 { 478 memset(state, 0, sizeof(isdv4_state_t)); 479 state->sess = sess; 480 state->buf = buf; 481 state->buf_size = buf_size; 482 state->emit_event_fn = event_fn; 483 } 484 485 static void isdv4_init_tablet(isdv4_state_t *state) 486 { 487 write_command(state->sess, CMD_STOP); 488 usleep(250000); /* 250 ms */ 489 while (char_dev_read(state->sess, state->buf, state->buf_size) > 0); 490 write_command(state->sess, CMD_QUERY_STYLUS); 491 read_packets(state, parse_response_stylus); 492 write_command(state->sess, CMD_QUERY_TOUCH); 493 read_packets(state, parse_response_touch); 494 write_command(state->sess, CMD_START); 252 495 } 253 496 … … 338 581 } 339 582 340 write_command(sess, CMD_STOP);341 usleep(250000); /* 250 ms */342 583 uint8_t buf[BUF_SIZE]; 343 while (char_dev_read(sess, buf, BUF_SIZE) > 0); 344 write_command(sess, CMD_QUERY_STYLUS); 345 read_packets(sess, parse_response_stylus); 346 write_command(sess, CMD_QUERY_TOUCH); 347 read_packets(sess, parse_response_touch); 348 write_command(sess, CMD_START); 349 read_packets(sess, parse_packet); 584 585 isdv4_state_t state; 586 isdv4_init(&state, sess, buf, BUF_SIZE, print_event); 587 isdv4_init_tablet(&state); 588 589 read_packets(&state, parse_event); 350 590 351 591 return 0;
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