1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * (C) Copyright 2000 4 * Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio@tin.it 5 */ 6 7 #include <common.h> 8 #include <console.h> 9 #include <debug_uart.h> 10 #include <dm.h> 11 #include <stdarg.h> 12 #include <iomux.h> 13 #include <malloc.h> 14 #include <mapmem.h> 15 #include <os.h> 16 #include <serial.h> 17 #include <stdio_dev.h> 18 #include <exports.h> 19 #include <environment.h> 20 #include <watchdog.h> 21 22 DECLARE_GLOBAL_DATA_PTR; 23 24 static int on_console(const char *name, const char *value, enum env_op op, 25 int flags) 26 { 27 int console = -1; 28 29 /* Check for console redirection */ 30 if (strcmp(name, "stdin") == 0) 31 console = stdin; 32 else if (strcmp(name, "stdout") == 0) 33 console = stdout; 34 else if (strcmp(name, "stderr") == 0) 35 console = stderr; 36 37 /* if not actually setting a console variable, we don't care */ 38 if (console == -1 || (gd->flags & GD_FLG_DEVINIT) == 0) 39 return 0; 40 41 switch (op) { 42 case env_op_create: 43 case env_op_overwrite: 44 45 #if CONFIG_IS_ENABLED(CONSOLE_MUX) 46 if (iomux_doenv(console, value)) 47 return 1; 48 #else 49 /* Try assigning specified device */ 50 if (console_assign(console, value) < 0) 51 return 1; 52 #endif 53 return 0; 54 55 case env_op_delete: 56 if ((flags & H_FORCE) == 0) 57 printf("Can't delete \"%s\"\n", name); 58 return 1; 59 60 default: 61 return 0; 62 } 63 } 64 U_BOOT_ENV_CALLBACK(console, on_console); 65 66 #ifdef CONFIG_SILENT_CONSOLE 67 static int on_silent(const char *name, const char *value, enum env_op op, 68 int flags) 69 { 70 #if !CONFIG_IS_ENABLED(SILENT_CONSOLE_UPDATE_ON_SET) 71 if (flags & H_INTERACTIVE) 72 return 0; 73 #endif 74 #if !CONFIG_IS_ENABLED(SILENT_CONSOLE_UPDATE_ON_RELOC) 75 if ((flags & H_INTERACTIVE) == 0) 76 return 0; 77 #endif 78 79 if (value != NULL) 80 gd->flags |= GD_FLG_SILENT; 81 else 82 gd->flags &= ~GD_FLG_SILENT; 83 84 return 0; 85 } 86 U_BOOT_ENV_CALLBACK(silent, on_silent); 87 #endif 88 89 #if CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV) 90 /* 91 * if overwrite_console returns 1, the stdin, stderr and stdout 92 * are switched to the serial port, else the settings in the 93 * environment are used 94 */ 95 #ifdef CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE 96 extern int overwrite_console(void); 97 #define OVERWRITE_CONSOLE overwrite_console() 98 #else 99 #define OVERWRITE_CONSOLE 0 100 #endif /* CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE */ 101 102 #endif /* CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV) */ 103 104 static int console_setfile(int file, struct stdio_dev * dev) 105 { 106 int error = 0; 107 108 if (dev == NULL) 109 return -1; 110 111 switch (file) { 112 case stdin: 113 case stdout: 114 case stderr: 115 /* Start new device */ 116 if (dev->start) { 117 error = dev->start(dev); 118 /* If it's not started dont use it */ 119 if (error < 0) 120 break; 121 } 122 123 /* Assign the new device (leaving the existing one started) */ 124 stdio_devices[file] = dev; 125 126 /* 127 * Update monitor functions 128 * (to use the console stuff by other applications) 129 */ 130 switch (file) { 131 case stdin: 132 gd->jt->getc = getc; 133 gd->jt->tstc = tstc; 134 break; 135 case stdout: 136 gd->jt->putc = putc; 137 gd->jt->puts = puts; 138 gd->jt->printf = printf; 139 break; 140 } 141 break; 142 143 default: /* Invalid file ID */ 144 error = -1; 145 } 146 return error; 147 } 148 149 /** 150 * console_dev_is_serial() - Check if a stdio device is a serial device 151 * 152 * @sdev: Device to check 153 * @return true if this device is in the serial uclass (or for pre-driver-model, 154 * whether it is called "serial". 155 */ 156 static bool console_dev_is_serial(struct stdio_dev *sdev) 157 { 158 bool is_serial; 159 160 #ifdef CONFIG_DM_SERIAL 161 if (sdev->flags & DEV_FLAGS_DM) { 162 struct udevice *dev = sdev->priv; 163 164 is_serial = device_get_uclass_id(dev) == UCLASS_SERIAL; 165 } else 166 #endif 167 is_serial = !strcmp(sdev->name, "serial"); 168 169 return is_serial; 170 } 171 172 #if CONFIG_IS_ENABLED(CONSOLE_MUX) 173 /** Console I/O multiplexing *******************************************/ 174 175 static struct stdio_dev *tstcdev; 176 struct stdio_dev **console_devices[MAX_FILES]; 177 int cd_count[MAX_FILES]; 178 179 /* 180 * This depends on tstc() always being called before getc(). 181 * This is guaranteed to be true because this routine is called 182 * only from fgetc() which assures it. 183 * No attempt is made to demultiplex multiple input sources. 184 */ 185 static int console_getc(int file) 186 { 187 unsigned char ret; 188 189 /* This is never called with testcdev == NULL */ 190 ret = tstcdev->getc(tstcdev); 191 tstcdev = NULL; 192 return ret; 193 } 194 195 static int console_tstc(int file) 196 { 197 int i, ret; 198 struct stdio_dev *dev; 199 int prev; 200 201 prev = 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(prev); 209 return ret; 210 } 211 } 212 } 213 disable_ctrlc(prev); 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 /* 315 * Effectively poll for input wherever it may be available. 316 */ 317 for (;;) { 318 WATCHDOG_RESET(); 319 #if CONFIG_IS_ENABLED(CONSOLE_MUX) 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 #else 328 if (console_tstc(file)) 329 return console_getc(file); 330 #endif 331 #ifdef CONFIG_WATCHDOG 332 /* 333 * If the watchdog must be rate-limited then it should 334 * already be handled in board-specific code. 335 */ 336 udelay(1); 337 #endif 338 } 339 } 340 341 return -1; 342 } 343 344 int ftstc(int file) 345 { 346 if (file < MAX_FILES) 347 return console_tstc(file); 348 349 return -1; 350 } 351 352 void fputc(int file, const char c) 353 { 354 if (file < MAX_FILES) 355 console_putc(file, c); 356 } 357 358 void fputs(int file, const char *s) 359 { 360 if (file < MAX_FILES) 361 console_puts(file, s); 362 } 363 364 int fprintf(int file, const char *fmt, ...) 365 { 366 va_list args; 367 uint i; 368 char printbuffer[CONFIG_SYS_PBSIZE]; 369 370 va_start(args, fmt); 371 372 /* For this to work, printbuffer must be larger than 373 * anything we ever want to print. 374 */ 375 i = vscnprintf(printbuffer, sizeof(printbuffer), fmt, args); 376 va_end(args); 377 378 /* Send to desired file */ 379 fputs(file, printbuffer); 380 return i; 381 } 382 383 /** U-Boot INITIAL CONSOLE-COMPATIBLE FUNCTION *****************************/ 384 385 int getc(void) 386 { 387 #ifdef CONFIG_DISABLE_CONSOLE 388 if (gd->flags & GD_FLG_DISABLE_CONSOLE) 389 return 0; 390 #endif 391 392 if (!gd->have_console) 393 return 0; 394 395 #ifdef CONFIG_CONSOLE_RECORD 396 if (gd->console_in.start) { 397 int ch; 398 399 ch = membuff_getbyte(&gd->console_in); 400 if (ch != -1) 401 return 1; 402 } 403 #endif 404 if (gd->flags & GD_FLG_DEVINIT) { 405 /* Get from the standard input */ 406 return fgetc(stdin); 407 } 408 409 /* Send directly to the handler */ 410 return serial_getc(); 411 } 412 413 int tstc(void) 414 { 415 #ifdef CONFIG_DISABLE_CONSOLE 416 if (gd->flags & GD_FLG_DISABLE_CONSOLE) 417 return 0; 418 #endif 419 420 if (!gd->have_console) 421 return 0; 422 #ifdef CONFIG_CONSOLE_RECORD 423 if (gd->console_in.start) { 424 if (membuff_peekbyte(&gd->console_in) != -1) 425 return 1; 426 } 427 #endif 428 if (gd->flags & GD_FLG_DEVINIT) { 429 /* Test the standard input */ 430 return ftstc(stdin); 431 } 432 433 /* Send directly to the handler */ 434 return serial_tstc(); 435 } 436 437 #define PRE_CONSOLE_FLUSHPOINT1_SERIAL 0 438 #define PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL 1 439 440 #if CONFIG_IS_ENABLED(PRE_CONSOLE_BUFFER) 441 #define CIRC_BUF_IDX(idx) ((idx) % (unsigned long)CONFIG_PRE_CON_BUF_SZ) 442 443 static void pre_console_putc(const char c) 444 { 445 char *buffer; 446 447 buffer = map_sysmem(CONFIG_PRE_CON_BUF_ADDR, CONFIG_PRE_CON_BUF_SZ); 448 449 buffer[CIRC_BUF_IDX(gd->precon_buf_idx++)] = c; 450 451 unmap_sysmem(buffer); 452 } 453 454 static void pre_console_puts(const char *s) 455 { 456 while (*s) 457 pre_console_putc(*s++); 458 } 459 460 static void print_pre_console_buffer(int flushpoint) 461 { 462 unsigned long in = 0, out = 0; 463 char buf_out[CONFIG_PRE_CON_BUF_SZ + 1]; 464 char *buf_in; 465 466 buf_in = map_sysmem(CONFIG_PRE_CON_BUF_ADDR, CONFIG_PRE_CON_BUF_SZ); 467 if (gd->precon_buf_idx > CONFIG_PRE_CON_BUF_SZ) 468 in = gd->precon_buf_idx - CONFIG_PRE_CON_BUF_SZ; 469 470 while (in < gd->precon_buf_idx) 471 buf_out[out++] = buf_in[CIRC_BUF_IDX(in++)]; 472 unmap_sysmem(buf_in); 473 474 buf_out[out] = 0; 475 476 switch (flushpoint) { 477 case PRE_CONSOLE_FLUSHPOINT1_SERIAL: 478 puts(buf_out); 479 break; 480 case PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL: 481 console_puts_noserial(stdout, buf_out); 482 break; 483 } 484 } 485 #else 486 static inline void pre_console_putc(const char c) {} 487 static inline void pre_console_puts(const char *s) {} 488 static inline void print_pre_console_buffer(int flushpoint) {} 489 #endif 490 491 void putc(const char c) 492 { 493 #ifdef CONFIG_SANDBOX 494 /* sandbox can send characters to stdout before it has a console */ 495 if (!gd || !(gd->flags & GD_FLG_SERIAL_READY)) { 496 os_putc(c); 497 return; 498 } 499 #endif 500 #ifdef CONFIG_DEBUG_UART 501 /* if we don't have a console yet, use the debug UART */ 502 if (!gd || !(gd->flags & GD_FLG_SERIAL_READY)) { 503 printch(c); 504 return; 505 } 506 #endif 507 if (!gd) 508 return; 509 #ifdef CONFIG_CONSOLE_RECORD 510 if ((gd->flags & GD_FLG_RECORD) && gd->console_out.start) 511 membuff_putbyte(&gd->console_out, c); 512 #endif 513 #ifdef CONFIG_SILENT_CONSOLE 514 if (gd->flags & GD_FLG_SILENT) 515 return; 516 #endif 517 518 #ifdef CONFIG_DISABLE_CONSOLE 519 if (gd->flags & GD_FLG_DISABLE_CONSOLE) 520 return; 521 #endif 522 523 if (!gd->have_console) 524 return pre_console_putc(c); 525 526 if (gd->flags & GD_FLG_DEVINIT) { 527 /* Send to the standard output */ 528 fputc(stdout, c); 529 } else { 530 /* Send directly to the handler */ 531 pre_console_putc(c); 532 serial_putc(c); 533 } 534 } 535 536 void puts(const char *s) 537 { 538 #ifdef CONFIG_SANDBOX 539 /* sandbox can send characters to stdout before it has a console */ 540 if (!gd || !(gd->flags & GD_FLG_SERIAL_READY)) { 541 os_puts(s); 542 return; 543 } 544 #endif 545 #ifdef CONFIG_DEBUG_UART 546 if (!gd || !(gd->flags & GD_FLG_SERIAL_READY)) { 547 while (*s) { 548 int ch = *s++; 549 550 printch(ch); 551 } 552 return; 553 } 554 #endif 555 if (!gd) 556 return; 557 #ifdef CONFIG_CONSOLE_RECORD 558 if ((gd->flags & GD_FLG_RECORD) && gd->console_out.start) 559 membuff_put(&gd->console_out, s, strlen(s)); 560 #endif 561 #ifdef CONFIG_SILENT_CONSOLE 562 if (gd->flags & GD_FLG_SILENT) 563 return; 564 #endif 565 566 #ifdef CONFIG_DISABLE_CONSOLE 567 if (gd->flags & GD_FLG_DISABLE_CONSOLE) 568 return; 569 #endif 570 571 if (!gd->have_console) 572 return pre_console_puts(s); 573 574 if (gd->flags & GD_FLG_DEVINIT) { 575 /* Send to the standard output */ 576 fputs(stdout, s); 577 } else { 578 /* Send directly to the handler */ 579 pre_console_puts(s); 580 serial_puts(s); 581 } 582 } 583 584 #ifdef CONFIG_CONSOLE_RECORD 585 int console_record_init(void) 586 { 587 int ret; 588 589 ret = membuff_new(&gd->console_out, CONFIG_CONSOLE_RECORD_OUT_SIZE); 590 if (ret) 591 return ret; 592 ret = membuff_new(&gd->console_in, CONFIG_CONSOLE_RECORD_IN_SIZE); 593 594 return ret; 595 } 596 597 void console_record_reset(void) 598 { 599 membuff_purge(&gd->console_out); 600 membuff_purge(&gd->console_in); 601 } 602 603 void console_record_reset_enable(void) 604 { 605 console_record_reset(); 606 gd->flags |= GD_FLG_RECORD; 607 } 608 #endif 609 610 /* test if ctrl-c was pressed */ 611 static int ctrlc_disabled = 0; /* see disable_ctrl() */ 612 static int ctrlc_was_pressed = 0; 613 int ctrlc(void) 614 { 615 if (!ctrlc_disabled && gd->have_console) { 616 if (tstc()) { 617 switch (getc()) { 618 case 0x03: /* ^C - Control C */ 619 ctrlc_was_pressed = 1; 620 return 1; 621 default: 622 break; 623 } 624 } 625 } 626 627 return 0; 628 } 629 /* Reads user's confirmation. 630 Returns 1 if user's input is "y", "Y", "yes" or "YES" 631 */ 632 int confirm_yesno(void) 633 { 634 int i; 635 char str_input[5]; 636 637 /* Flush input */ 638 while (tstc()) 639 getc(); 640 i = 0; 641 while (i < sizeof(str_input)) { 642 str_input[i] = getc(); 643 putc(str_input[i]); 644 if (str_input[i] == '\r') 645 break; 646 i++; 647 } 648 putc('\n'); 649 if (strncmp(str_input, "y\r", 2) == 0 || 650 strncmp(str_input, "Y\r", 2) == 0 || 651 strncmp(str_input, "yes\r", 4) == 0 || 652 strncmp(str_input, "YES\r", 4) == 0) 653 return 1; 654 return 0; 655 } 656 /* pass 1 to disable ctrlc() checking, 0 to enable. 657 * returns previous state 658 */ 659 int disable_ctrlc(int disable) 660 { 661 int prev = ctrlc_disabled; /* save previous state */ 662 663 ctrlc_disabled = disable; 664 return prev; 665 } 666 667 int had_ctrlc (void) 668 { 669 return ctrlc_was_pressed; 670 } 671 672 void clear_ctrlc(void) 673 { 674 ctrlc_was_pressed = 0; 675 } 676 677 /** U-Boot INIT FUNCTIONS *************************************************/ 678 679 struct stdio_dev *search_device(int flags, const char *name) 680 { 681 struct stdio_dev *dev; 682 683 dev = stdio_get_by_name(name); 684 #ifdef CONFIG_VIDCONSOLE_AS_LCD 685 if (!dev && !strcmp(name, "lcd")) 686 dev = stdio_get_by_name("vidconsole"); 687 #endif 688 689 if (dev && (dev->flags & flags)) 690 return dev; 691 692 return NULL; 693 } 694 695 int console_assign(int file, const char *devname) 696 { 697 int flag; 698 struct stdio_dev *dev; 699 700 /* Check for valid file */ 701 switch (file) { 702 case stdin: 703 flag = DEV_FLAGS_INPUT; 704 break; 705 case stdout: 706 case stderr: 707 flag = DEV_FLAGS_OUTPUT; 708 break; 709 default: 710 return -1; 711 } 712 713 /* Check for valid device name */ 714 715 dev = search_device(flag, devname); 716 717 if (dev) 718 return console_setfile(file, dev); 719 720 return -1; 721 } 722 723 static void console_update_silent(void) 724 { 725 #ifdef CONFIG_SILENT_CONSOLE 726 if (env_get("silent") != NULL) 727 gd->flags |= GD_FLG_SILENT; 728 else 729 gd->flags &= ~GD_FLG_SILENT; 730 #endif 731 } 732 733 int console_announce_r(void) 734 { 735 #if !CONFIG_IS_ENABLED(PRE_CONSOLE_BUFFER) 736 char buf[DISPLAY_OPTIONS_BANNER_LENGTH]; 737 738 display_options_get_banner(false, buf, sizeof(buf)); 739 740 console_puts_noserial(stdout, buf); 741 #endif 742 743 return 0; 744 } 745 746 /* Called before relocation - use serial functions */ 747 int console_init_f(void) 748 { 749 gd->have_console = 1; 750 751 console_update_silent(); 752 753 print_pre_console_buffer(PRE_CONSOLE_FLUSHPOINT1_SERIAL); 754 755 return 0; 756 } 757 758 void stdio_print_current_devices(void) 759 { 760 /* Print information */ 761 puts("In: "); 762 if (stdio_devices[stdin] == NULL) { 763 puts("No input devices available!\n"); 764 } else { 765 printf ("%s\n", stdio_devices[stdin]->name); 766 } 767 768 puts("Out: "); 769 if (stdio_devices[stdout] == NULL) { 770 puts("No output devices available!\n"); 771 } else { 772 printf ("%s\n", stdio_devices[stdout]->name); 773 } 774 775 puts("Err: "); 776 if (stdio_devices[stderr] == NULL) { 777 puts("No error devices available!\n"); 778 } else { 779 printf ("%s\n", stdio_devices[stderr]->name); 780 } 781 } 782 783 #if CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV) 784 /* Called after the relocation - use desired console functions */ 785 int console_init_r(void) 786 { 787 char *stdinname, *stdoutname, *stderrname; 788 struct stdio_dev *inputdev = NULL, *outputdev = NULL, *errdev = NULL; 789 #ifdef CONFIG_SYS_CONSOLE_ENV_OVERWRITE 790 int i; 791 #endif /* CONFIG_SYS_CONSOLE_ENV_OVERWRITE */ 792 #if CONFIG_IS_ENABLED(CONSOLE_MUX) 793 int iomux_err = 0; 794 #endif 795 796 /* set default handlers at first */ 797 gd->jt->getc = serial_getc; 798 gd->jt->tstc = serial_tstc; 799 gd->jt->putc = serial_putc; 800 gd->jt->puts = serial_puts; 801 gd->jt->printf = serial_printf; 802 803 /* stdin stdout and stderr are in environment */ 804 /* scan for it */ 805 stdinname = env_get("stdin"); 806 stdoutname = env_get("stdout"); 807 stderrname = env_get("stderr"); 808 809 if (OVERWRITE_CONSOLE == 0) { /* if not overwritten by config switch */ 810 inputdev = search_device(DEV_FLAGS_INPUT, stdinname); 811 outputdev = search_device(DEV_FLAGS_OUTPUT, stdoutname); 812 errdev = search_device(DEV_FLAGS_OUTPUT, stderrname); 813 #if CONFIG_IS_ENABLED(CONSOLE_MUX) 814 iomux_err = iomux_doenv(stdin, stdinname); 815 iomux_err += iomux_doenv(stdout, stdoutname); 816 iomux_err += iomux_doenv(stderr, stderrname); 817 if (!iomux_err) 818 /* Successful, so skip all the code below. */ 819 goto done; 820 #endif 821 } 822 /* if the devices are overwritten or not found, use default device */ 823 if (inputdev == NULL) { 824 inputdev = search_device(DEV_FLAGS_INPUT, "serial"); 825 } 826 if (outputdev == NULL) { 827 outputdev = search_device(DEV_FLAGS_OUTPUT, "serial"); 828 } 829 if (errdev == NULL) { 830 errdev = search_device(DEV_FLAGS_OUTPUT, "serial"); 831 } 832 /* Initializes output console first */ 833 if (outputdev != NULL) { 834 /* need to set a console if not done above. */ 835 console_doenv(stdout, outputdev); 836 } 837 if (errdev != NULL) { 838 /* need to set a console if not done above. */ 839 console_doenv(stderr, errdev); 840 } 841 if (inputdev != NULL) { 842 /* need to set a console if not done above. */ 843 console_doenv(stdin, inputdev); 844 } 845 846 #if CONFIG_IS_ENABLED(CONSOLE_MUX) 847 done: 848 #endif 849 850 #ifndef CONFIG_SYS_CONSOLE_INFO_QUIET 851 stdio_print_current_devices(); 852 #endif /* CONFIG_SYS_CONSOLE_INFO_QUIET */ 853 #ifdef CONFIG_VIDCONSOLE_AS_LCD 854 if (strstr(stdoutname, "lcd")) 855 printf("Warning: Please change 'lcd' to 'vidconsole' in stdout/stderr environment vars\n"); 856 #endif 857 858 #ifdef CONFIG_SYS_CONSOLE_ENV_OVERWRITE 859 /* set the environment variables (will overwrite previous env settings) */ 860 for (i = 0; i < MAX_FILES; i++) { 861 env_set(stdio_names[i], stdio_devices[i]->name); 862 } 863 #endif /* CONFIG_SYS_CONSOLE_ENV_OVERWRITE */ 864 865 gd->flags |= GD_FLG_DEVINIT; /* device initialization completed */ 866 867 #if 0 868 /* If nothing usable installed, use only the initial console */ 869 if ((stdio_devices[stdin] == NULL) && (stdio_devices[stdout] == NULL)) 870 return 0; 871 #endif 872 print_pre_console_buffer(PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL); 873 return 0; 874 } 875 876 #else /* !CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV) */ 877 878 /* Called after the relocation - use desired console functions */ 879 int console_init_r(void) 880 { 881 struct stdio_dev *inputdev = NULL, *outputdev = NULL; 882 int i; 883 struct list_head *list = stdio_get_list(); 884 struct list_head *pos; 885 struct stdio_dev *dev; 886 887 console_update_silent(); 888 889 #ifdef CONFIG_SPLASH_SCREEN 890 /* 891 * suppress all output if splash screen is enabled and we have 892 * a bmp to display. We redirect the output from frame buffer 893 * console to serial console in this case or suppress it if 894 * "silent" mode was requested. 895 */ 896 if (env_get("splashimage") != NULL) { 897 if (!(gd->flags & GD_FLG_SILENT)) 898 outputdev = search_device (DEV_FLAGS_OUTPUT, "serial"); 899 } 900 #endif 901 902 /* Scan devices looking for input and output devices */ 903 list_for_each(pos, list) { 904 dev = list_entry(pos, struct stdio_dev, list); 905 906 if ((dev->flags & DEV_FLAGS_INPUT) && (inputdev == NULL)) { 907 inputdev = dev; 908 } 909 if ((dev->flags & DEV_FLAGS_OUTPUT) && (outputdev == NULL)) { 910 outputdev = dev; 911 } 912 if(inputdev && outputdev) 913 break; 914 } 915 916 /* Initializes output console first */ 917 if (outputdev != NULL) { 918 console_setfile(stdout, outputdev); 919 console_setfile(stderr, outputdev); 920 #if CONFIG_IS_ENABLED(CONSOLE_MUX) 921 console_devices[stdout][0] = outputdev; 922 console_devices[stderr][0] = outputdev; 923 #endif 924 } 925 926 /* Initializes input console */ 927 if (inputdev != NULL) { 928 console_setfile(stdin, inputdev); 929 #if CONFIG_IS_ENABLED(CONSOLE_MUX) 930 console_devices[stdin][0] = inputdev; 931 #endif 932 } 933 934 #ifndef CONFIG_SYS_CONSOLE_INFO_QUIET 935 stdio_print_current_devices(); 936 #endif /* CONFIG_SYS_CONSOLE_INFO_QUIET */ 937 938 /* Setting environment variables */ 939 for (i = 0; i < MAX_FILES; i++) { 940 env_set(stdio_names[i], stdio_devices[i]->name); 941 } 942 943 gd->flags |= GD_FLG_DEVINIT; /* device initialization completed */ 944 945 #if 0 946 /* If nothing usable installed, use only the initial console */ 947 if ((stdio_devices[stdin] == NULL) && (stdio_devices[stdout] == NULL)) 948 return 0; 949 #endif 950 print_pre_console_buffer(PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL); 951 return 0; 952 } 953 954 #endif /* CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV) */ 955