1 /* 2 * (C) Copyright 2000 3 * Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio@tin.it 4 * 5 * SPDX-License-Identifier: GPL-2.0+ 6 */ 7 8 #include <common.h> 9 #include <console.h> 10 #include <debug_uart.h> 11 #include <dm.h> 12 #include <stdarg.h> 13 #include <iomux.h> 14 #include <malloc.h> 15 #include <mapmem.h> 16 #include <os.h> 17 #include <serial.h> 18 #include <stdio_dev.h> 19 #include <exports.h> 20 #include <environment.h> 21 #include <watchdog.h> 22 23 DECLARE_GLOBAL_DATA_PTR; 24 25 static int on_console(const char *name, const char *value, enum env_op op, 26 int flags) 27 { 28 int console = -1; 29 30 /* Check for console redirection */ 31 if (strcmp(name, "stdin") == 0) 32 console = stdin; 33 else if (strcmp(name, "stdout") == 0) 34 console = stdout; 35 else if (strcmp(name, "stderr") == 0) 36 console = stderr; 37 38 /* if not actually setting a console variable, we don't care */ 39 if (console == -1 || (gd->flags & GD_FLG_DEVINIT) == 0) 40 return 0; 41 42 switch (op) { 43 case env_op_create: 44 case env_op_overwrite: 45 46 #if CONFIG_IS_ENABLED(CONSOLE_MUX) 47 if (iomux_doenv(console, value)) 48 return 1; 49 #else 50 /* Try assigning specified device */ 51 if (console_assign(console, value) < 0) 52 return 1; 53 #endif 54 return 0; 55 56 case env_op_delete: 57 if ((flags & H_FORCE) == 0) 58 printf("Can't delete \"%s\"\n", name); 59 return 1; 60 61 default: 62 return 0; 63 } 64 } 65 U_BOOT_ENV_CALLBACK(console, on_console); 66 67 #ifdef CONFIG_SILENT_CONSOLE 68 static int on_silent(const char *name, const char *value, enum env_op op, 69 int flags) 70 { 71 #if !CONFIG_IS_ENABLED(SILENT_CONSOLE_UPDATE_ON_SET) 72 if (flags & H_INTERACTIVE) 73 return 0; 74 #endif 75 #if !CONFIG_IS_ENABLED(SILENT_CONSOLE_UPDATE_ON_RELOC) 76 if ((flags & H_INTERACTIVE) == 0) 77 return 0; 78 #endif 79 80 if (value != NULL) 81 gd->flags |= GD_FLG_SILENT; 82 else 83 gd->flags &= ~GD_FLG_SILENT; 84 85 return 0; 86 } 87 U_BOOT_ENV_CALLBACK(silent, on_silent); 88 #endif 89 90 #if CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV) 91 /* 92 * if overwrite_console returns 1, the stdin, stderr and stdout 93 * are switched to the serial port, else the settings in the 94 * environment are used 95 */ 96 #ifdef CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE 97 extern int overwrite_console(void); 98 #define OVERWRITE_CONSOLE overwrite_console() 99 #else 100 #define OVERWRITE_CONSOLE 0 101 #endif /* CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE */ 102 103 #endif /* CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV) */ 104 105 static int console_setfile(int file, struct stdio_dev * dev) 106 { 107 int error = 0; 108 109 if (dev == NULL) 110 return -1; 111 112 switch (file) { 113 case stdin: 114 case stdout: 115 case stderr: 116 /* Start new device */ 117 if (dev->start) { 118 error = dev->start(dev); 119 /* If it's not started dont use it */ 120 if (error < 0) 121 break; 122 } 123 124 /* Assign the new device (leaving the existing one started) */ 125 stdio_devices[file] = dev; 126 127 /* 128 * Update monitor functions 129 * (to use the console stuff by other applications) 130 */ 131 switch (file) { 132 case stdin: 133 gd->jt->getc = getc; 134 gd->jt->tstc = tstc; 135 break; 136 case stdout: 137 gd->jt->putc = putc; 138 gd->jt->puts = puts; 139 gd->jt->printf = printf; 140 break; 141 } 142 break; 143 144 default: /* Invalid file ID */ 145 error = -1; 146 } 147 return error; 148 } 149 150 /** 151 * console_dev_is_serial() - Check if a stdio device is a serial device 152 * 153 * @sdev: Device to check 154 * @return true if this device is in the serial uclass (or for pre-driver-model, 155 * whether it is called "serial". 156 */ 157 static bool console_dev_is_serial(struct stdio_dev *sdev) 158 { 159 bool is_serial; 160 161 #ifdef CONFIG_DM_SERIAL 162 if (sdev->flags & DEV_FLAGS_DM) { 163 struct udevice *dev = sdev->priv; 164 165 is_serial = device_get_uclass_id(dev) == UCLASS_SERIAL; 166 } else 167 #endif 168 is_serial = !strcmp(sdev->name, "serial"); 169 170 return is_serial; 171 } 172 173 #if CONFIG_IS_ENABLED(CONSOLE_MUX) 174 /** Console I/O multiplexing *******************************************/ 175 176 static struct stdio_dev *tstcdev; 177 struct stdio_dev **console_devices[MAX_FILES]; 178 int cd_count[MAX_FILES]; 179 180 /* 181 * This depends on tstc() always being called before getc(). 182 * This is guaranteed to be true because this routine is called 183 * only from fgetc() which assures it. 184 * No attempt is made to demultiplex multiple input sources. 185 */ 186 static int console_getc(int file) 187 { 188 unsigned char ret; 189 190 /* This is never called with testcdev == NULL */ 191 ret = tstcdev->getc(tstcdev); 192 tstcdev = NULL; 193 return ret; 194 } 195 196 static int console_tstc(int file) 197 { 198 int i, ret; 199 struct stdio_dev *dev; 200 201 disable_ctrlc(1); 202 for (i = 0; i < cd_count[file]; i++) { 203 dev = console_devices[file][i]; 204 if (dev->tstc != NULL) { 205 ret = dev->tstc(dev); 206 if (ret > 0) { 207 tstcdev = dev; 208 disable_ctrlc(0); 209 return ret; 210 } 211 } 212 } 213 disable_ctrlc(0); 214 215 return 0; 216 } 217 218 static void console_putc(int file, const char c) 219 { 220 int i; 221 struct stdio_dev *dev; 222 223 for (i = 0; i < cd_count[file]; i++) { 224 dev = console_devices[file][i]; 225 if (dev->putc != NULL) 226 dev->putc(dev, c); 227 } 228 } 229 230 static void console_puts_noserial(int file, const char *s) 231 { 232 int i; 233 struct stdio_dev *dev; 234 235 for (i = 0; i < cd_count[file]; i++) { 236 dev = console_devices[file][i]; 237 if (dev->puts != NULL && !console_dev_is_serial(dev)) 238 dev->puts(dev, s); 239 } 240 } 241 242 static void console_puts(int file, const char *s) 243 { 244 int i; 245 struct stdio_dev *dev; 246 247 for (i = 0; i < cd_count[file]; i++) { 248 dev = console_devices[file][i]; 249 if (dev->puts != NULL) 250 dev->puts(dev, s); 251 } 252 } 253 254 static inline void console_doenv(int file, struct stdio_dev *dev) 255 { 256 iomux_doenv(file, dev->name); 257 } 258 #else 259 static inline int console_getc(int file) 260 { 261 return stdio_devices[file]->getc(stdio_devices[file]); 262 } 263 264 static inline int console_tstc(int file) 265 { 266 return stdio_devices[file]->tstc(stdio_devices[file]); 267 } 268 269 static inline void console_putc(int file, const char c) 270 { 271 stdio_devices[file]->putc(stdio_devices[file], c); 272 } 273 274 static inline void console_puts_noserial(int file, const char *s) 275 { 276 if (!console_dev_is_serial(stdio_devices[file])) 277 stdio_devices[file]->puts(stdio_devices[file], s); 278 } 279 280 static inline void console_puts(int file, const char *s) 281 { 282 stdio_devices[file]->puts(stdio_devices[file], s); 283 } 284 285 static inline void console_doenv(int file, struct stdio_dev *dev) 286 { 287 console_setfile(file, dev); 288 } 289 #endif /* CONIFIG_IS_ENABLED(CONSOLE_MUX) */ 290 291 /** U-Boot INITIAL CONSOLE-NOT COMPATIBLE FUNCTIONS *************************/ 292 293 int serial_printf(const char *fmt, ...) 294 { 295 va_list args; 296 uint i; 297 char printbuffer[CONFIG_SYS_PBSIZE]; 298 299 va_start(args, fmt); 300 301 /* For this to work, printbuffer must be larger than 302 * anything we ever want to print. 303 */ 304 i = vscnprintf(printbuffer, sizeof(printbuffer), fmt, args); 305 va_end(args); 306 307 serial_puts(printbuffer); 308 return i; 309 } 310 311 int fgetc(int file) 312 { 313 if (file < MAX_FILES) { 314 #if CONFIG_IS_ENABLED(CONSOLE_MUX) 315 /* 316 * Effectively poll for input wherever it may be available. 317 */ 318 for (;;) { 319 WATCHDOG_RESET(); 320 /* 321 * Upper layer may have already called tstc() so 322 * check for that first. 323 */ 324 if (tstcdev != NULL) 325 return console_getc(file); 326 console_tstc(file); 327 #ifdef CONFIG_WATCHDOG 328 /* 329 * If the watchdog must be rate-limited then it should 330 * already be handled in board-specific code. 331 */ 332 udelay(1); 333 #endif 334 } 335 #else 336 return console_getc(file); 337 #endif 338 } 339 340 return -1; 341 } 342 343 int ftstc(int file) 344 { 345 if (file < MAX_FILES) 346 return console_tstc(file); 347 348 return -1; 349 } 350 351 void fputc(int file, const char c) 352 { 353 if (file < MAX_FILES) 354 console_putc(file, c); 355 } 356 357 void fputs(int file, const char *s) 358 { 359 if (file < MAX_FILES) 360 console_puts(file, s); 361 } 362 363 int fprintf(int file, const char *fmt, ...) 364 { 365 va_list args; 366 uint i; 367 char printbuffer[CONFIG_SYS_PBSIZE]; 368 369 va_start(args, fmt); 370 371 /* For this to work, printbuffer must be larger than 372 * anything we ever want to print. 373 */ 374 i = vscnprintf(printbuffer, sizeof(printbuffer), fmt, args); 375 va_end(args); 376 377 /* Send to desired file */ 378 fputs(file, printbuffer); 379 return i; 380 } 381 382 /** U-Boot INITIAL CONSOLE-COMPATIBLE FUNCTION *****************************/ 383 384 int getc(void) 385 { 386 #ifdef CONFIG_DISABLE_CONSOLE 387 if (gd->flags & GD_FLG_DISABLE_CONSOLE) 388 return 0; 389 #endif 390 391 if (!gd->have_console) 392 return 0; 393 394 #ifdef CONFIG_CONSOLE_RECORD 395 if (gd->console_in.start) { 396 int ch; 397 398 ch = membuff_getbyte(&gd->console_in); 399 if (ch != -1) 400 return 1; 401 } 402 #endif 403 if (gd->flags & GD_FLG_DEVINIT) { 404 /* Get from the standard input */ 405 return fgetc(stdin); 406 } 407 408 /* Send directly to the handler */ 409 return serial_getc(); 410 } 411 412 int tstc(void) 413 { 414 #ifdef CONFIG_DISABLE_CONSOLE 415 if (gd->flags & GD_FLG_DISABLE_CONSOLE) 416 return 0; 417 #endif 418 419 if (!gd->have_console) 420 return 0; 421 #ifdef CONFIG_CONSOLE_RECORD 422 if (gd->console_in.start) { 423 if (membuff_peekbyte(&gd->console_in) != -1) 424 return 1; 425 } 426 #endif 427 if (gd->flags & GD_FLG_DEVINIT) { 428 /* Test the standard input */ 429 return ftstc(stdin); 430 } 431 432 /* Send directly to the handler */ 433 return serial_tstc(); 434 } 435 436 #define PRE_CONSOLE_FLUSHPOINT1_SERIAL 0 437 #define PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL 1 438 439 #if CONFIG_IS_ENABLED(PRE_CONSOLE_BUFFER) 440 #define CIRC_BUF_IDX(idx) ((idx) % (unsigned long)CONFIG_PRE_CON_BUF_SZ) 441 442 static void pre_console_putc(const char c) 443 { 444 char *buffer; 445 446 buffer = map_sysmem(CONFIG_PRE_CON_BUF_ADDR, CONFIG_PRE_CON_BUF_SZ); 447 448 buffer[CIRC_BUF_IDX(gd->precon_buf_idx++)] = c; 449 450 unmap_sysmem(buffer); 451 } 452 453 static void print_pre_console_buffer(int flushpoint) 454 { 455 unsigned long in = 0, out = 0; 456 char buf_out[CONFIG_PRE_CON_BUF_SZ + 1]; 457 char *buf_in; 458 459 buf_in = map_sysmem(CONFIG_PRE_CON_BUF_ADDR, CONFIG_PRE_CON_BUF_SZ); 460 if (gd->precon_buf_idx > CONFIG_PRE_CON_BUF_SZ) 461 in = gd->precon_buf_idx - CONFIG_PRE_CON_BUF_SZ; 462 463 while (in < gd->precon_buf_idx) 464 buf_out[out++] = buf_in[CIRC_BUF_IDX(in++)]; 465 unmap_sysmem(buf_in); 466 467 buf_out[out] = 0; 468 469 switch (flushpoint) { 470 case PRE_CONSOLE_FLUSHPOINT1_SERIAL: 471 puts(buf_out); 472 break; 473 case PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL: 474 console_puts_noserial(stdout, buf_out); 475 break; 476 } 477 } 478 #else 479 static inline void pre_console_putc(const char c) {} 480 static inline void print_pre_console_buffer(int flushpoint) {} 481 #endif 482 483 void putc(const char c) 484 { 485 #ifdef CONFIG_DEBUG_UART 486 /* if we don't have a console yet, use the debug UART */ 487 if (!gd || !(gd->flags & GD_FLG_SERIAL_READY)) { 488 printch(c); 489 return; 490 } 491 #endif 492 #ifdef CONFIG_CONSOLE_RECORD 493 if (gd && (gd->flags & GD_FLG_RECORD) && gd->console_out.start) 494 membuff_putbyte(&gd->console_out, c); 495 #endif 496 #ifdef CONFIG_SILENT_CONSOLE 497 if (gd->flags & GD_FLG_SILENT) 498 return; 499 #endif 500 501 #ifdef CONFIG_DISABLE_CONSOLE 502 if (gd->flags & GD_FLG_DISABLE_CONSOLE) 503 return; 504 #endif 505 506 if (!gd->have_console) 507 return pre_console_putc(c); 508 509 if (gd->flags & GD_FLG_DEVINIT) { 510 /* Send to the standard output */ 511 fputc(stdout, c); 512 } else { 513 /* Send directly to the handler */ 514 pre_console_putc(c); 515 serial_putc(c); 516 } 517 } 518 519 void puts(const char *s) 520 { 521 while (*s) 522 putc(*s++); 523 } 524 525 #ifdef CONFIG_CONSOLE_RECORD 526 int console_record_init(void) 527 { 528 int ret; 529 530 ret = membuff_new(&gd->console_out, CONFIG_CONSOLE_RECORD_OUT_SIZE); 531 if (ret) 532 return ret; 533 ret = membuff_new(&gd->console_in, CONFIG_CONSOLE_RECORD_IN_SIZE); 534 535 return ret; 536 } 537 538 void console_record_reset(void) 539 { 540 membuff_purge(&gd->console_out); 541 membuff_purge(&gd->console_in); 542 } 543 544 void console_record_reset_enable(void) 545 { 546 console_record_reset(); 547 gd->flags |= GD_FLG_RECORD; 548 } 549 #endif 550 551 /* test if ctrl-c was pressed */ 552 static int ctrlc_disabled = 0; /* see disable_ctrl() */ 553 static int ctrlc_was_pressed = 0; 554 int ctrlc(void) 555 { 556 #ifndef CONFIG_SANDBOX 557 if (!ctrlc_disabled && gd->have_console) { 558 if (tstc()) { 559 switch (getc()) { 560 case 0x03: /* ^C - Control C */ 561 ctrlc_was_pressed = 1; 562 return 1; 563 default: 564 break; 565 } 566 } 567 } 568 #endif 569 570 return 0; 571 } 572 /* Reads user's confirmation. 573 Returns 1 if user's input is "y", "Y", "yes" or "YES" 574 */ 575 int confirm_yesno(void) 576 { 577 int i; 578 char str_input[5]; 579 580 /* Flush input */ 581 while (tstc()) 582 getc(); 583 i = 0; 584 while (i < sizeof(str_input)) { 585 str_input[i] = getc(); 586 putc(str_input[i]); 587 if (str_input[i] == '\r') 588 break; 589 i++; 590 } 591 putc('\n'); 592 if (strncmp(str_input, "y\r", 2) == 0 || 593 strncmp(str_input, "Y\r", 2) == 0 || 594 strncmp(str_input, "yes\r", 4) == 0 || 595 strncmp(str_input, "YES\r", 4) == 0) 596 return 1; 597 return 0; 598 } 599 /* pass 1 to disable ctrlc() checking, 0 to enable. 600 * returns previous state 601 */ 602 int disable_ctrlc(int disable) 603 { 604 int prev = ctrlc_disabled; /* save previous state */ 605 606 ctrlc_disabled = disable; 607 return prev; 608 } 609 610 int had_ctrlc (void) 611 { 612 return ctrlc_was_pressed; 613 } 614 615 void clear_ctrlc(void) 616 { 617 ctrlc_was_pressed = 0; 618 } 619 620 /** U-Boot INIT FUNCTIONS *************************************************/ 621 622 struct stdio_dev *search_device(int flags, const char *name) 623 { 624 struct stdio_dev *dev; 625 626 dev = stdio_get_by_name(name); 627 #ifdef CONFIG_VIDCONSOLE_AS_LCD 628 if (!dev && !strcmp(name, "lcd")) 629 dev = stdio_get_by_name("vidconsole"); 630 #endif 631 632 if (dev && (dev->flags & flags)) 633 return dev; 634 635 return NULL; 636 } 637 638 int console_assign(int file, const char *devname) 639 { 640 int flag; 641 struct stdio_dev *dev; 642 643 /* Check for valid file */ 644 switch (file) { 645 case stdin: 646 flag = DEV_FLAGS_INPUT; 647 break; 648 case stdout: 649 case stderr: 650 flag = DEV_FLAGS_OUTPUT; 651 break; 652 default: 653 return -1; 654 } 655 656 /* Check for valid device name */ 657 658 dev = search_device(flag, devname); 659 660 if (dev) 661 return console_setfile(file, dev); 662 663 return -1; 664 } 665 666 static void console_update_silent(void) 667 { 668 #ifdef CONFIG_SILENT_CONSOLE 669 if (env_get("silent") != NULL) 670 gd->flags |= GD_FLG_SILENT; 671 else 672 gd->flags &= ~GD_FLG_SILENT; 673 #endif 674 } 675 676 int console_announce_r(void) 677 { 678 #if !CONFIG_IS_ENABLED(PRE_CONSOLE_BUFFER) 679 char buf[DISPLAY_OPTIONS_BANNER_LENGTH]; 680 681 display_options_get_banner(false, buf, sizeof(buf)); 682 683 console_puts_noserial(stdout, buf); 684 #endif 685 686 return 0; 687 } 688 689 /* Called before relocation - use serial functions */ 690 int console_init_f(void) 691 { 692 gd->have_console = 1; 693 694 console_update_silent(); 695 696 print_pre_console_buffer(PRE_CONSOLE_FLUSHPOINT1_SERIAL); 697 698 return 0; 699 } 700 701 void stdio_print_current_devices(void) 702 { 703 /* Print information */ 704 puts("In: "); 705 if (stdio_devices[stdin] == NULL) { 706 puts("No input devices available!\n"); 707 } else { 708 printf ("%s\n", stdio_devices[stdin]->name); 709 } 710 711 puts("Out: "); 712 if (stdio_devices[stdout] == NULL) { 713 puts("No output devices available!\n"); 714 } else { 715 printf ("%s\n", stdio_devices[stdout]->name); 716 } 717 718 puts("Err: "); 719 if (stdio_devices[stderr] == NULL) { 720 puts("No error devices available!\n"); 721 } else { 722 printf ("%s\n", stdio_devices[stderr]->name); 723 } 724 } 725 726 #if CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV) 727 /* Called after the relocation - use desired console functions */ 728 int console_init_r(void) 729 { 730 char *stdinname, *stdoutname, *stderrname; 731 struct stdio_dev *inputdev = NULL, *outputdev = NULL, *errdev = NULL; 732 #ifdef CONFIG_SYS_CONSOLE_ENV_OVERWRITE 733 int i; 734 #endif /* CONFIG_SYS_CONSOLE_ENV_OVERWRITE */ 735 #if CONFIG_IS_ENABLED(CONSOLE_MUX) 736 int iomux_err = 0; 737 #endif 738 739 /* set default handlers at first */ 740 gd->jt->getc = serial_getc; 741 gd->jt->tstc = serial_tstc; 742 gd->jt->putc = serial_putc; 743 gd->jt->puts = serial_puts; 744 gd->jt->printf = serial_printf; 745 746 /* stdin stdout and stderr are in environment */ 747 /* scan for it */ 748 stdinname = env_get("stdin"); 749 stdoutname = env_get("stdout"); 750 stderrname = env_get("stderr"); 751 752 if (OVERWRITE_CONSOLE == 0) { /* if not overwritten by config switch */ 753 inputdev = search_device(DEV_FLAGS_INPUT, stdinname); 754 outputdev = search_device(DEV_FLAGS_OUTPUT, stdoutname); 755 errdev = search_device(DEV_FLAGS_OUTPUT, stderrname); 756 #if CONFIG_IS_ENABLED(CONSOLE_MUX) 757 iomux_err = iomux_doenv(stdin, stdinname); 758 iomux_err += iomux_doenv(stdout, stdoutname); 759 iomux_err += iomux_doenv(stderr, stderrname); 760 if (!iomux_err) 761 /* Successful, so skip all the code below. */ 762 goto done; 763 #endif 764 } 765 /* if the devices are overwritten or not found, use default device */ 766 if (inputdev == NULL) { 767 inputdev = search_device(DEV_FLAGS_INPUT, "serial"); 768 } 769 if (outputdev == NULL) { 770 outputdev = search_device(DEV_FLAGS_OUTPUT, "serial"); 771 } 772 if (errdev == NULL) { 773 errdev = search_device(DEV_FLAGS_OUTPUT, "serial"); 774 } 775 /* Initializes output console first */ 776 if (outputdev != NULL) { 777 /* need to set a console if not done above. */ 778 console_doenv(stdout, outputdev); 779 } 780 if (errdev != NULL) { 781 /* need to set a console if not done above. */ 782 console_doenv(stderr, errdev); 783 } 784 if (inputdev != NULL) { 785 /* need to set a console if not done above. */ 786 console_doenv(stdin, inputdev); 787 } 788 789 #if CONFIG_IS_ENABLED(CONSOLE_MUX) 790 done: 791 #endif 792 793 #ifndef CONFIG_SYS_CONSOLE_INFO_QUIET 794 stdio_print_current_devices(); 795 #endif /* CONFIG_SYS_CONSOLE_INFO_QUIET */ 796 #ifdef CONFIG_VIDCONSOLE_AS_LCD 797 if (strstr(stdoutname, "lcd")) 798 printf("Warning: Please change 'lcd' to 'vidconsole' in stdout/stderr environment vars\n"); 799 #endif 800 801 #ifdef CONFIG_SYS_CONSOLE_ENV_OVERWRITE 802 /* set the environment variables (will overwrite previous env settings) */ 803 for (i = 0; i < 3; i++) { 804 env_set(stdio_names[i], stdio_devices[i]->name); 805 } 806 #endif /* CONFIG_SYS_CONSOLE_ENV_OVERWRITE */ 807 808 gd->flags |= GD_FLG_DEVINIT; /* device initialization completed */ 809 810 #if 0 811 /* If nothing usable installed, use only the initial console */ 812 if ((stdio_devices[stdin] == NULL) && (stdio_devices[stdout] == NULL)) 813 return 0; 814 #endif 815 print_pre_console_buffer(PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL); 816 return 0; 817 } 818 819 #else /* !CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV) */ 820 821 /* Called after the relocation - use desired console functions */ 822 int console_init_r(void) 823 { 824 struct stdio_dev *inputdev = NULL, *outputdev = NULL; 825 int i; 826 struct list_head *list = stdio_get_list(); 827 struct list_head *pos; 828 struct stdio_dev *dev; 829 830 console_update_silent(); 831 832 #ifdef CONFIG_SPLASH_SCREEN 833 /* 834 * suppress all output if splash screen is enabled and we have 835 * a bmp to display. We redirect the output from frame buffer 836 * console to serial console in this case or suppress it if 837 * "silent" mode was requested. 838 */ 839 if (env_get("splashimage") != NULL) { 840 if (!(gd->flags & GD_FLG_SILENT)) 841 outputdev = search_device (DEV_FLAGS_OUTPUT, "serial"); 842 } 843 #endif 844 845 /* Scan devices looking for input and output devices */ 846 list_for_each(pos, list) { 847 dev = list_entry(pos, struct stdio_dev, list); 848 849 if ((dev->flags & DEV_FLAGS_INPUT) && (inputdev == NULL)) { 850 inputdev = dev; 851 } 852 if ((dev->flags & DEV_FLAGS_OUTPUT) && (outputdev == NULL)) { 853 outputdev = dev; 854 } 855 if(inputdev && outputdev) 856 break; 857 } 858 859 /* Initializes output console first */ 860 if (outputdev != NULL) { 861 console_setfile(stdout, outputdev); 862 console_setfile(stderr, outputdev); 863 #if CONFIG_IS_ENABLED(CONSOLE_MUX) 864 console_devices[stdout][0] = outputdev; 865 console_devices[stderr][0] = outputdev; 866 #endif 867 } 868 869 /* Initializes input console */ 870 if (inputdev != NULL) { 871 console_setfile(stdin, inputdev); 872 #if CONFIG_IS_ENABLED(CONSOLE_MUX) 873 console_devices[stdin][0] = inputdev; 874 #endif 875 } 876 877 #ifndef CONFIG_SYS_CONSOLE_INFO_QUIET 878 stdio_print_current_devices(); 879 #endif /* CONFIG_SYS_CONSOLE_INFO_QUIET */ 880 881 /* Setting environment variables */ 882 for (i = 0; i < 3; i++) { 883 env_set(stdio_names[i], stdio_devices[i]->name); 884 } 885 886 gd->flags |= GD_FLG_DEVINIT; /* device initialization completed */ 887 888 #if 0 889 /* If nothing usable installed, use only the initial console */ 890 if ((stdio_devices[stdin] == NULL) && (stdio_devices[stdout] == NULL)) 891 return 0; 892 #endif 893 print_pre_console_buffer(PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL); 894 return 0; 895 } 896 897 #endif /* CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV) */ 898