1 /* 2 * Copyright (C) 2007 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #include <errno.h> 18 #include <fcntl.h> 19 #include <linux/input.h> 20 #include <pthread.h> 21 #include <stdarg.h> 22 #include <stdio.h> 23 #include <stdlib.h> 24 #include <string.h> 25 #include <sys/stat.h> 26 #include <sys/time.h> 27 #include <sys/types.h> 28 #include <time.h> 29 #include <unistd.h> 30 31 #include "common.h" 32 #include <cutils/android_reboot.h> 33 #include "minui/minui.h" 34 #include "recovery_ui.h" 35 36 #define MAX_COLS 96 37 #define MAX_ROWS 32 38 39 #define CHAR_WIDTH 10 40 #define CHAR_HEIGHT 18 41 42 #define UI_WAIT_KEY_TIMEOUT_SEC 120 43 44 UIParameters ui_parameters = { 45 6, // indeterminate progress bar frames 46 20, // fps 47 7, // installation icon frames (0 == static image) 48 13, 190, // installation icon overlay offset 49 }; 50 51 static pthread_mutex_t gUpdateMutex = PTHREAD_MUTEX_INITIALIZER; 52 static gr_surface gBackgroundIcon[NUM_BACKGROUND_ICONS]; 53 static gr_surface *gInstallationOverlay; 54 static gr_surface *gProgressBarIndeterminate; 55 static gr_surface gProgressBarEmpty; 56 static gr_surface gProgressBarFill; 57 58 static const struct { gr_surface* surface; const char *name; } BITMAPS[] = { 59 { &gBackgroundIcon[BACKGROUND_ICON_INSTALLING], "icon_installing" }, 60 { &gBackgroundIcon[BACKGROUND_ICON_ERROR], "icon_error" }, 61 { &gProgressBarEmpty, "progress_empty" }, 62 { &gProgressBarFill, "progress_fill" }, 63 { NULL, NULL }, 64 }; 65 66 static int gCurrentIcon = 0; 67 static int gInstallingFrame = 0; 68 69 static enum ProgressBarType { 70 PROGRESSBAR_TYPE_NONE, 71 PROGRESSBAR_TYPE_INDETERMINATE, 72 PROGRESSBAR_TYPE_NORMAL, 73 } gProgressBarType = PROGRESSBAR_TYPE_NONE; 74 75 // Progress bar scope of current operation 76 static float gProgressScopeStart = 0, gProgressScopeSize = 0, gProgress = 0; 77 static double gProgressScopeTime, gProgressScopeDuration; 78 79 // Set to 1 when both graphics pages are the same (except for the progress bar) 80 static int gPagesIdentical = 0; 81 82 // Log text overlay, displayed when a magic key is pressed 83 static char text[MAX_ROWS][MAX_COLS]; 84 static int text_cols = 0, text_rows = 0; 85 static int text_col = 0, text_row = 0, text_top = 0; 86 static int show_text = 0; 87 static int show_text_ever = 0; // has show_text ever been 1? 88 89 static char menu[MAX_ROWS][MAX_COLS]; 90 static int show_menu = 0; 91 static int menu_top = 0, menu_items = 0, menu_sel = 0; 92 93 // Key event input queue 94 static pthread_mutex_t key_queue_mutex = PTHREAD_MUTEX_INITIALIZER; 95 static pthread_cond_t key_queue_cond = PTHREAD_COND_INITIALIZER; 96 static int key_queue[256], key_queue_len = 0; 97 static volatile char key_pressed[KEY_MAX + 1]; 98 99 // Return the current time as a double (including fractions of a second). 100 static double now() { 101 struct timeval tv; 102 gettimeofday(&tv, NULL); 103 return tv.tv_sec + tv.tv_usec / 1000000.0; 104 } 105 106 // Draw the given frame over the installation overlay animation. The 107 // background is not cleared or draw with the base icon first; we 108 // assume that the frame already contains some other frame of the 109 // animation. Does nothing if no overlay animation is defined. 110 // Should only be called with gUpdateMutex locked. 111 static void draw_install_overlay_locked(int frame) { 112 if (gInstallationOverlay == NULL) return; 113 gr_surface surface = gInstallationOverlay[frame]; 114 int iconWidth = gr_get_width(surface); 115 int iconHeight = gr_get_height(surface); 116 gr_blit(surface, 0, 0, iconWidth, iconHeight, 117 ui_parameters.install_overlay_offset_x, 118 ui_parameters.install_overlay_offset_y); 119 } 120 121 // Clear the screen and draw the currently selected background icon (if any). 122 // Should only be called with gUpdateMutex locked. 123 static void draw_background_locked(int icon) 124 { 125 gPagesIdentical = 0; 126 gr_color(0, 0, 0, 255); 127 gr_fill(0, 0, gr_fb_width(), gr_fb_height()); 128 129 if (icon) { 130 gr_surface surface = gBackgroundIcon[icon]; 131 int iconWidth = gr_get_width(surface); 132 int iconHeight = gr_get_height(surface); 133 int iconX = (gr_fb_width() - iconWidth) / 2; 134 int iconY = (gr_fb_height() - iconHeight) / 2; 135 gr_blit(surface, 0, 0, iconWidth, iconHeight, iconX, iconY); 136 if (icon == BACKGROUND_ICON_INSTALLING) { 137 draw_install_overlay_locked(gInstallingFrame); 138 } 139 } 140 } 141 142 // Draw the progress bar (if any) on the screen. Does not flip pages. 143 // Should only be called with gUpdateMutex locked. 144 static void draw_progress_locked() 145 { 146 if (gCurrentIcon == BACKGROUND_ICON_INSTALLING) { 147 draw_install_overlay_locked(gInstallingFrame); 148 } 149 150 if (gProgressBarType != PROGRESSBAR_TYPE_NONE) { 151 int iconHeight = gr_get_height(gBackgroundIcon[BACKGROUND_ICON_INSTALLING]); 152 int width = gr_get_width(gProgressBarEmpty); 153 int height = gr_get_height(gProgressBarEmpty); 154 155 int dx = (gr_fb_width() - width)/2; 156 int dy = (3*gr_fb_height() + iconHeight - 2*height)/4; 157 158 // Erase behind the progress bar (in case this was a progress-only update) 159 gr_color(0, 0, 0, 255); 160 gr_fill(dx, dy, width, height); 161 162 if (gProgressBarType == PROGRESSBAR_TYPE_NORMAL) { 163 float progress = gProgressScopeStart + gProgress * gProgressScopeSize; 164 int pos = (int) (progress * width); 165 166 if (pos > 0) { 167 gr_blit(gProgressBarFill, 0, 0, pos, height, dx, dy); 168 } 169 if (pos < width-1) { 170 gr_blit(gProgressBarEmpty, pos, 0, width-pos, height, dx+pos, dy); 171 } 172 } 173 174 if (gProgressBarType == PROGRESSBAR_TYPE_INDETERMINATE) { 175 static int frame = 0; 176 gr_blit(gProgressBarIndeterminate[frame], 0, 0, width, height, dx, dy); 177 frame = (frame + 1) % ui_parameters.indeterminate_frames; 178 } 179 } 180 } 181 182 static void draw_text_line(int row, const char* t) { 183 if (t[0] != '\0') { 184 gr_text(0, (row+1)*CHAR_HEIGHT-1, t); 185 } 186 } 187 188 // Redraw everything on the screen. Does not flip pages. 189 // Should only be called with gUpdateMutex locked. 190 static void draw_screen_locked(void) 191 { 192 draw_background_locked(gCurrentIcon); 193 draw_progress_locked(); 194 195 if (show_text) { 196 gr_color(0, 0, 0, 160); 197 gr_fill(0, 0, gr_fb_width(), gr_fb_height()); 198 199 int i = 0; 200 if (show_menu) { 201 gr_color(64, 96, 255, 255); 202 gr_fill(0, (menu_top+menu_sel) * CHAR_HEIGHT, 203 gr_fb_width(), (menu_top+menu_sel+1)*CHAR_HEIGHT+1); 204 205 for (; i < menu_top + menu_items; ++i) { 206 if (i == menu_top + menu_sel) { 207 gr_color(255, 255, 255, 255); 208 draw_text_line(i, menu[i]); 209 gr_color(64, 96, 255, 255); 210 } else { 211 draw_text_line(i, menu[i]); 212 } 213 } 214 gr_fill(0, i*CHAR_HEIGHT+CHAR_HEIGHT/2-1, 215 gr_fb_width(), i*CHAR_HEIGHT+CHAR_HEIGHT/2+1); 216 ++i; 217 } 218 219 gr_color(255, 255, 0, 255); 220 221 for (; i < text_rows; ++i) { 222 draw_text_line(i, text[(i+text_top) % text_rows]); 223 } 224 } 225 } 226 227 // Redraw everything on the screen and flip the screen (make it visible). 228 // Should only be called with gUpdateMutex locked. 229 static void update_screen_locked(void) 230 { 231 draw_screen_locked(); 232 gr_flip(); 233 } 234 235 // Updates only the progress bar, if possible, otherwise redraws the screen. 236 // Should only be called with gUpdateMutex locked. 237 static void update_progress_locked(void) 238 { 239 if (show_text || !gPagesIdentical) { 240 draw_screen_locked(); // Must redraw the whole screen 241 gPagesIdentical = 1; 242 } else { 243 draw_progress_locked(); // Draw only the progress bar and overlays 244 } 245 gr_flip(); 246 } 247 248 // Keeps the progress bar updated, even when the process is otherwise busy. 249 static void *progress_thread(void *cookie) 250 { 251 double interval = 1.0 / ui_parameters.update_fps; 252 for (;;) { 253 double start = now(); 254 pthread_mutex_lock(&gUpdateMutex); 255 256 int redraw = 0; 257 258 // update the installation animation, if active 259 // skip this if we have a text overlay (too expensive to update) 260 if (gCurrentIcon == BACKGROUND_ICON_INSTALLING && 261 ui_parameters.installing_frames > 0 && 262 !show_text) { 263 gInstallingFrame = 264 (gInstallingFrame + 1) % ui_parameters.installing_frames; 265 redraw = 1; 266 } 267 268 // update the progress bar animation, if active 269 // skip this if we have a text overlay (too expensive to update) 270 if (gProgressBarType == PROGRESSBAR_TYPE_INDETERMINATE && !show_text) { 271 redraw = 1; 272 } 273 274 // move the progress bar forward on timed intervals, if configured 275 int duration = gProgressScopeDuration; 276 if (gProgressBarType == PROGRESSBAR_TYPE_NORMAL && duration > 0) { 277 double elapsed = now() - gProgressScopeTime; 278 float progress = 1.0 * elapsed / duration; 279 if (progress > 1.0) progress = 1.0; 280 if (progress > gProgress) { 281 gProgress = progress; 282 redraw = 1; 283 } 284 } 285 286 if (redraw) update_progress_locked(); 287 288 pthread_mutex_unlock(&gUpdateMutex); 289 double end = now(); 290 // minimum of 20ms delay between frames 291 double delay = interval - (end-start); 292 if (delay < 0.02) delay = 0.02; 293 usleep((long)(delay * 1000000)); 294 } 295 return NULL; 296 } 297 298 static int rel_sum = 0; 299 300 static int input_callback(int fd, short revents, void *data) 301 { 302 struct input_event ev; 303 int ret; 304 int fake_key = 0; 305 306 ret = ev_get_input(fd, revents, &ev); 307 if (ret) 308 return -1; 309 310 if (ev.type == EV_SYN) { 311 return 0; 312 } else if (ev.type == EV_REL) { 313 if (ev.code == REL_Y) { 314 // accumulate the up or down motion reported by 315 // the trackball. When it exceeds a threshold 316 // (positive or negative), fake an up/down 317 // key event. 318 rel_sum += ev.value; 319 if (rel_sum > 3) { 320 fake_key = 1; 321 ev.type = EV_KEY; 322 ev.code = KEY_DOWN; 323 ev.value = 1; 324 rel_sum = 0; 325 } else if (rel_sum < -3) { 326 fake_key = 1; 327 ev.type = EV_KEY; 328 ev.code = KEY_UP; 329 ev.value = 1; 330 rel_sum = 0; 331 } 332 } 333 } else { 334 rel_sum = 0; 335 } 336 337 if (ev.type != EV_KEY || ev.code > KEY_MAX) 338 return 0; 339 340 pthread_mutex_lock(&key_queue_mutex); 341 if (!fake_key) { 342 // our "fake" keys only report a key-down event (no 343 // key-up), so don't record them in the key_pressed 344 // table. 345 key_pressed[ev.code] = ev.value; 346 } 347 const int queue_max = sizeof(key_queue) / sizeof(key_queue[0]); 348 if (ev.value > 0 && key_queue_len < queue_max) { 349 key_queue[key_queue_len++] = ev.code; 350 pthread_cond_signal(&key_queue_cond); 351 } 352 pthread_mutex_unlock(&key_queue_mutex); 353 354 if (ev.value > 0 && device_toggle_display(key_pressed, ev.code)) { 355 pthread_mutex_lock(&gUpdateMutex); 356 show_text = !show_text; 357 if (show_text) show_text_ever = 1; 358 update_screen_locked(); 359 pthread_mutex_unlock(&gUpdateMutex); 360 } 361 362 if (ev.value > 0 && device_reboot_now(key_pressed, ev.code)) { 363 android_reboot(ANDROID_RB_RESTART, 0, 0); 364 } 365 366 return 0; 367 } 368 369 // Reads input events, handles special hot keys, and adds to the key queue. 370 static void *input_thread(void *cookie) 371 { 372 for (;;) { 373 if (!ev_wait(-1)) 374 ev_dispatch(); 375 } 376 return NULL; 377 } 378 379 void ui_init(void) 380 { 381 gr_init(); 382 ev_init(input_callback, NULL); 383 384 text_col = text_row = 0; 385 text_rows = gr_fb_height() / CHAR_HEIGHT; 386 if (text_rows > MAX_ROWS) text_rows = MAX_ROWS; 387 text_top = 1; 388 389 text_cols = gr_fb_width() / CHAR_WIDTH; 390 if (text_cols > MAX_COLS - 1) text_cols = MAX_COLS - 1; 391 392 int i; 393 for (i = 0; BITMAPS[i].name != NULL; ++i) { 394 int result = res_create_surface(BITMAPS[i].name, BITMAPS[i].surface); 395 if (result < 0) { 396 LOGE("Missing bitmap %s\n(Code %d)\n", BITMAPS[i].name, result); 397 } 398 } 399 400 gProgressBarIndeterminate = malloc(ui_parameters.indeterminate_frames * 401 sizeof(gr_surface)); 402 for (i = 0; i < ui_parameters.indeterminate_frames; ++i) { 403 char filename[40]; 404 // "indeterminate01.png", "indeterminate02.png", ... 405 sprintf(filename, "indeterminate%02d", i+1); 406 int result = res_create_surface(filename, gProgressBarIndeterminate+i); 407 if (result < 0) { 408 LOGE("Missing bitmap %s\n(Code %d)\n", filename, result); 409 } 410 } 411 412 if (ui_parameters.installing_frames > 0) { 413 gInstallationOverlay = malloc(ui_parameters.installing_frames * 414 sizeof(gr_surface)); 415 for (i = 0; i < ui_parameters.installing_frames; ++i) { 416 char filename[40]; 417 // "icon_installing_overlay01.png", 418 // "icon_installing_overlay02.png", ... 419 sprintf(filename, "icon_installing_overlay%02d", i+1); 420 int result = res_create_surface(filename, gInstallationOverlay+i); 421 if (result < 0) { 422 LOGE("Missing bitmap %s\n(Code %d)\n", filename, result); 423 } 424 } 425 426 // Adjust the offset to account for the positioning of the 427 // base image on the screen. 428 if (gBackgroundIcon[BACKGROUND_ICON_INSTALLING] != NULL) { 429 gr_surface bg = gBackgroundIcon[BACKGROUND_ICON_INSTALLING]; 430 ui_parameters.install_overlay_offset_x += 431 (gr_fb_width() - gr_get_width(bg)) / 2; 432 ui_parameters.install_overlay_offset_y += 433 (gr_fb_height() - gr_get_height(bg)) / 2; 434 } 435 } else { 436 gInstallationOverlay = NULL; 437 } 438 439 pthread_t t; 440 pthread_create(&t, NULL, progress_thread, NULL); 441 pthread_create(&t, NULL, input_thread, NULL); 442 } 443 444 void ui_set_background(int icon) 445 { 446 pthread_mutex_lock(&gUpdateMutex); 447 gCurrentIcon = icon; 448 update_screen_locked(); 449 pthread_mutex_unlock(&gUpdateMutex); 450 } 451 452 void ui_show_indeterminate_progress() 453 { 454 pthread_mutex_lock(&gUpdateMutex); 455 if (gProgressBarType != PROGRESSBAR_TYPE_INDETERMINATE) { 456 gProgressBarType = PROGRESSBAR_TYPE_INDETERMINATE; 457 update_progress_locked(); 458 } 459 pthread_mutex_unlock(&gUpdateMutex); 460 } 461 462 void ui_show_progress(float portion, int seconds) 463 { 464 pthread_mutex_lock(&gUpdateMutex); 465 gProgressBarType = PROGRESSBAR_TYPE_NORMAL; 466 gProgressScopeStart += gProgressScopeSize; 467 gProgressScopeSize = portion; 468 gProgressScopeTime = now(); 469 gProgressScopeDuration = seconds; 470 gProgress = 0; 471 update_progress_locked(); 472 pthread_mutex_unlock(&gUpdateMutex); 473 } 474 475 void ui_set_progress(float fraction) 476 { 477 pthread_mutex_lock(&gUpdateMutex); 478 if (fraction < 0.0) fraction = 0.0; 479 if (fraction > 1.0) fraction = 1.0; 480 if (gProgressBarType == PROGRESSBAR_TYPE_NORMAL && fraction > gProgress) { 481 // Skip updates that aren't visibly different. 482 int width = gr_get_width(gProgressBarIndeterminate[0]); 483 float scale = width * gProgressScopeSize; 484 if ((int) (gProgress * scale) != (int) (fraction * scale)) { 485 gProgress = fraction; 486 update_progress_locked(); 487 } 488 } 489 pthread_mutex_unlock(&gUpdateMutex); 490 } 491 492 void ui_reset_progress() 493 { 494 pthread_mutex_lock(&gUpdateMutex); 495 gProgressBarType = PROGRESSBAR_TYPE_NONE; 496 gProgressScopeStart = gProgressScopeSize = 0; 497 gProgressScopeTime = gProgressScopeDuration = 0; 498 gProgress = 0; 499 update_screen_locked(); 500 pthread_mutex_unlock(&gUpdateMutex); 501 } 502 503 void ui_print(const char *fmt, ...) 504 { 505 char buf[256]; 506 va_list ap; 507 va_start(ap, fmt); 508 vsnprintf(buf, 256, fmt, ap); 509 va_end(ap); 510 511 fputs(buf, stdout); 512 513 // This can get called before ui_init(), so be careful. 514 pthread_mutex_lock(&gUpdateMutex); 515 if (text_rows > 0 && text_cols > 0) { 516 char *ptr; 517 for (ptr = buf; *ptr != '\0'; ++ptr) { 518 if (*ptr == '\n' || text_col >= text_cols) { 519 text[text_row][text_col] = '\0'; 520 text_col = 0; 521 text_row = (text_row + 1) % text_rows; 522 if (text_row == text_top) text_top = (text_top + 1) % text_rows; 523 } 524 if (*ptr != '\n') text[text_row][text_col++] = *ptr; 525 } 526 text[text_row][text_col] = '\0'; 527 update_screen_locked(); 528 } 529 pthread_mutex_unlock(&gUpdateMutex); 530 } 531 532 void ui_start_menu(char** headers, char** items, int initial_selection) { 533 int i; 534 pthread_mutex_lock(&gUpdateMutex); 535 if (text_rows > 0 && text_cols > 0) { 536 for (i = 0; i < text_rows; ++i) { 537 if (headers[i] == NULL) break; 538 strncpy(menu[i], headers[i], text_cols-1); 539 menu[i][text_cols-1] = '\0'; 540 } 541 menu_top = i; 542 for (; i < text_rows; ++i) { 543 if (items[i-menu_top] == NULL) break; 544 strncpy(menu[i], items[i-menu_top], text_cols-1); 545 menu[i][text_cols-1] = '\0'; 546 } 547 menu_items = i - menu_top; 548 show_menu = 1; 549 menu_sel = initial_selection; 550 update_screen_locked(); 551 } 552 pthread_mutex_unlock(&gUpdateMutex); 553 } 554 555 int ui_menu_select(int sel) { 556 int old_sel; 557 pthread_mutex_lock(&gUpdateMutex); 558 if (show_menu > 0) { 559 old_sel = menu_sel; 560 menu_sel = sel; 561 if (menu_sel < 0) menu_sel = 0; 562 if (menu_sel >= menu_items) menu_sel = menu_items-1; 563 sel = menu_sel; 564 if (menu_sel != old_sel) update_screen_locked(); 565 } 566 pthread_mutex_unlock(&gUpdateMutex); 567 return sel; 568 } 569 570 void ui_end_menu() { 571 int i; 572 pthread_mutex_lock(&gUpdateMutex); 573 if (show_menu > 0 && text_rows > 0 && text_cols > 0) { 574 show_menu = 0; 575 update_screen_locked(); 576 } 577 pthread_mutex_unlock(&gUpdateMutex); 578 } 579 580 int ui_text_visible() 581 { 582 pthread_mutex_lock(&gUpdateMutex); 583 int visible = show_text; 584 pthread_mutex_unlock(&gUpdateMutex); 585 return visible; 586 } 587 588 int ui_text_ever_visible() 589 { 590 pthread_mutex_lock(&gUpdateMutex); 591 int ever_visible = show_text_ever; 592 pthread_mutex_unlock(&gUpdateMutex); 593 return ever_visible; 594 } 595 596 void ui_show_text(int visible) 597 { 598 pthread_mutex_lock(&gUpdateMutex); 599 show_text = visible; 600 if (show_text) show_text_ever = 1; 601 update_screen_locked(); 602 pthread_mutex_unlock(&gUpdateMutex); 603 } 604 605 // Return true if USB is connected. 606 static int usb_connected() { 607 int fd = open("/sys/class/android_usb/android0/state", O_RDONLY); 608 if (fd < 0) { 609 printf("failed to open /sys/class/android_usb/android0/state: %s\n", 610 strerror(errno)); 611 return 0; 612 } 613 614 char buf; 615 /* USB is connected if android_usb state is CONNECTED or CONFIGURED */ 616 int connected = (read(fd, &buf, 1) == 1) && (buf == 'C'); 617 if (close(fd) < 0) { 618 printf("failed to close /sys/class/android_usb/android0/state: %s\n", 619 strerror(errno)); 620 } 621 return connected; 622 } 623 624 int ui_wait_key() 625 { 626 pthread_mutex_lock(&key_queue_mutex); 627 628 // Time out after UI_WAIT_KEY_TIMEOUT_SEC, unless a USB cable is 629 // plugged in. 630 do { 631 struct timeval now; 632 struct timespec timeout; 633 gettimeofday(&now, NULL); 634 timeout.tv_sec = now.tv_sec; 635 timeout.tv_nsec = now.tv_usec * 1000; 636 timeout.tv_sec += UI_WAIT_KEY_TIMEOUT_SEC; 637 638 int rc = 0; 639 while (key_queue_len == 0 && rc != ETIMEDOUT) { 640 rc = pthread_cond_timedwait(&key_queue_cond, &key_queue_mutex, 641 &timeout); 642 } 643 } while (usb_connected() && key_queue_len == 0); 644 645 int key = -1; 646 if (key_queue_len > 0) { 647 key = key_queue[0]; 648 memcpy(&key_queue[0], &key_queue[1], sizeof(int) * --key_queue_len); 649 } 650 pthread_mutex_unlock(&key_queue_mutex); 651 return key; 652 } 653 654 int ui_key_pressed(int key) 655 { 656 // This is a volatile static array, don't bother locking 657 return key_pressed[key]; 658 } 659 660 void ui_clear_key_queue() { 661 pthread_mutex_lock(&key_queue_mutex); 662 key_queue_len = 0; 663 pthread_mutex_unlock(&key_queue_mutex); 664 } 665
