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 #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 pre_console_puts(const char *s) 454 { 455 while (*s) 456 pre_console_putc(*s++); 457 } 458 459 static void print_pre_console_buffer(int flushpoint) 460 { 461 unsigned long in = 0, out = 0; 462 char buf_out[CONFIG_PRE_CON_BUF_SZ + 1]; 463 char *buf_in; 464 465 buf_in = map_sysmem(CONFIG_PRE_CON_BUF_ADDR, CONFIG_PRE_CON_BUF_SZ); 466 if (gd->precon_buf_idx > CONFIG_PRE_CON_BUF_SZ) 467 in = gd->precon_buf_idx - CONFIG_PRE_CON_BUF_SZ; 468 469 while (in < gd->precon_buf_idx) 470 buf_out[out++] = buf_in[CIRC_BUF_IDX(in++)]; 471 unmap_sysmem(buf_in); 472 473 buf_out[out] = 0; 474 475 switch (flushpoint) { 476 case PRE_CONSOLE_FLUSHPOINT1_SERIAL: 477 puts(buf_out); 478 break; 479 case PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL: 480 console_puts_noserial(stdout, buf_out); 481 break; 482 } 483 } 484 #else 485 static inline void pre_console_putc(const char c) {} 486 static inline void pre_console_puts(const char *s) {} 487 static inline void print_pre_console_buffer(int flushpoint) {} 488 #endif 489 490 void putc(const char c) 491 { 492 #ifdef CONFIG_SANDBOX 493 /* sandbox can send characters to stdout before it has a console */ 494 if (!gd || !(gd->flags & GD_FLG_SERIAL_READY)) { 495 os_putc(c); 496 return; 497 } 498 #endif 499 #ifdef CONFIG_DEBUG_UART 500 /* if we don't have a console yet, use the debug UART */ 501 if (!gd || !(gd->flags & GD_FLG_SERIAL_READY)) { 502 printch(c); 503 return; 504 } 505 #endif 506 if (!gd) 507 return; 508 #ifdef CONFIG_CONSOLE_RECORD 509 if ((gd->flags & GD_FLG_RECORD) && gd->console_out.start) 510 membuff_putbyte(&gd->console_out, c); 511 #endif 512 #ifdef CONFIG_SILENT_CONSOLE 513 if (gd->flags & GD_FLG_SILENT) 514 return; 515 #endif 516 517 #ifdef CONFIG_DISABLE_CONSOLE 518 if (gd->flags & GD_FLG_DISABLE_CONSOLE) 519 return; 520 #endif 521 522 if (!gd->have_console) 523 return pre_console_putc(c); 524 525 if (gd->flags & GD_FLG_DEVINIT) { 526 /* Send to the standard output */ 527 fputc(stdout, c); 528 } else { 529 /* Send directly to the handler */ 530 pre_console_putc(c); 531 serial_putc(c); 532 } 533 } 534 535 void puts(const char *s) 536 { 537 #ifdef CONFIG_DEBUG_UART 538 if (!gd || !(gd->flags & GD_FLG_SERIAL_READY)) { 539 while (*s) { 540 int ch = *s++; 541 542 printch(ch); 543 } 544 return; 545 } 546 #endif 547 if (!gd) 548 return; 549 #ifdef CONFIG_CONSOLE_RECORD 550 if ((gd->flags & GD_FLG_RECORD) && gd->console_out.start) 551 membuff_put(&gd->console_out, s, strlen(s)); 552 #endif 553 #ifdef CONFIG_SILENT_CONSOLE 554 if (gd->flags & GD_FLG_SILENT) 555 return; 556 #endif 557 558 #ifdef CONFIG_DISABLE_CONSOLE 559 if (gd->flags & GD_FLG_DISABLE_CONSOLE) 560 return; 561 #endif 562 563 if (!gd->have_console) 564 return pre_console_puts(s); 565 566 if (gd->flags & GD_FLG_DEVINIT) { 567 /* Send to the standard output */ 568 fputs(stdout, s); 569 } else { 570 /* Send directly to the handler */ 571 pre_console_puts(s); 572 serial_puts(s); 573 } 574 } 575 576 #ifdef CONFIG_CONSOLE_RECORD 577 int console_record_init(void) 578 { 579 int ret; 580 581 ret = membuff_new(&gd->console_out, CONFIG_CONSOLE_RECORD_OUT_SIZE); 582 if (ret) 583 return ret; 584 ret = membuff_new(&gd->console_in, CONFIG_CONSOLE_RECORD_IN_SIZE); 585 586 return ret; 587 } 588 589 void console_record_reset(void) 590 { 591 membuff_purge(&gd->console_out); 592 membuff_purge(&gd->console_in); 593 } 594 595 void console_record_reset_enable(void) 596 { 597 console_record_reset(); 598 gd->flags |= GD_FLG_RECORD; 599 } 600 #endif 601 602 /* test if ctrl-c was pressed */ 603 static int ctrlc_disabled = 0; /* see disable_ctrl() */ 604 static int ctrlc_was_pressed = 0; 605 int ctrlc(void) 606 { 607 if (!ctrlc_disabled && gd->have_console) { 608 if (tstc()) { 609 switch (getc()) { 610 case 0x03: /* ^C - Control C */ 611 ctrlc_was_pressed = 1; 612 return 1; 613 default: 614 break; 615 } 616 } 617 } 618 619 return 0; 620 } 621 /* Reads user's confirmation. 622 Returns 1 if user's input is "y", "Y", "yes" or "YES" 623 */ 624 int confirm_yesno(void) 625 { 626 int i; 627 char str_input[5]; 628 629 /* Flush input */ 630 while (tstc()) 631 getc(); 632 i = 0; 633 while (i < sizeof(str_input)) { 634 str_input[i] = getc(); 635 putc(str_input[i]); 636 if (str_input[i] == '\r') 637 break; 638 i++; 639 } 640 putc('\n'); 641 if (strncmp(str_input, "y\r", 2) == 0 || 642 strncmp(str_input, "Y\r", 2) == 0 || 643 strncmp(str_input, "yes\r", 4) == 0 || 644 strncmp(str_input, "YES\r", 4) == 0) 645 return 1; 646 return 0; 647 } 648 /* pass 1 to disable ctrlc() checking, 0 to enable. 649 * returns previous state 650 */ 651 int disable_ctrlc(int disable) 652 { 653 int prev = ctrlc_disabled; /* save previous state */ 654 655 ctrlc_disabled = disable; 656 return prev; 657 } 658 659 int had_ctrlc (void) 660 { 661 return ctrlc_was_pressed; 662 } 663 664 void clear_ctrlc(void) 665 { 666 ctrlc_was_pressed = 0; 667 } 668 669 /** U-Boot INIT FUNCTIONS *************************************************/ 670 671 struct stdio_dev *search_device(int flags, const char *name) 672 { 673 struct stdio_dev *dev; 674 675 dev = stdio_get_by_name(name); 676 #ifdef CONFIG_VIDCONSOLE_AS_LCD 677 if (!dev && !strcmp(name, "lcd")) 678 dev = stdio_get_by_name("vidconsole"); 679 #endif 680 681 if (dev && (dev->flags & flags)) 682 return dev; 683 684 return NULL; 685 } 686 687 int console_assign(int file, const char *devname) 688 { 689 int flag; 690 struct stdio_dev *dev; 691 692 /* Check for valid file */ 693 switch (file) { 694 case stdin: 695 flag = DEV_FLAGS_INPUT; 696 break; 697 case stdout: 698 case stderr: 699 flag = DEV_FLAGS_OUTPUT; 700 break; 701 default: 702 return -1; 703 } 704 705 /* Check for valid device name */ 706 707 dev = search_device(flag, devname); 708 709 if (dev) 710 return console_setfile(file, dev); 711 712 return -1; 713 } 714 715 static void console_update_silent(void) 716 { 717 #ifdef CONFIG_SILENT_CONSOLE 718 if (env_get("silent") != NULL) 719 gd->flags |= GD_FLG_SILENT; 720 else 721 gd->flags &= ~GD_FLG_SILENT; 722 #endif 723 } 724 725 int console_announce_r(void) 726 { 727 #if !CONFIG_IS_ENABLED(PRE_CONSOLE_BUFFER) 728 char buf[DISPLAY_OPTIONS_BANNER_LENGTH]; 729 730 display_options_get_banner(false, buf, sizeof(buf)); 731 732 console_puts_noserial(stdout, buf); 733 #endif 734 735 return 0; 736 } 737 738 /* Called before relocation - use serial functions */ 739 int console_init_f(void) 740 { 741 gd->have_console = 1; 742 743 console_update_silent(); 744 745 print_pre_console_buffer(PRE_CONSOLE_FLUSHPOINT1_SERIAL); 746 747 return 0; 748 } 749 750 void stdio_print_current_devices(void) 751 { 752 /* Print information */ 753 puts("In: "); 754 if (stdio_devices[stdin] == NULL) { 755 puts("No input devices available!\n"); 756 } else { 757 printf ("%s\n", stdio_devices[stdin]->name); 758 } 759 760 puts("Out: "); 761 if (stdio_devices[stdout] == NULL) { 762 puts("No output devices available!\n"); 763 } else { 764 printf ("%s\n", stdio_devices[stdout]->name); 765 } 766 767 puts("Err: "); 768 if (stdio_devices[stderr] == NULL) { 769 puts("No error devices available!\n"); 770 } else { 771 printf ("%s\n", stdio_devices[stderr]->name); 772 } 773 } 774 775 #if CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV) 776 /* Called after the relocation - use desired console functions */ 777 int console_init_r(void) 778 { 779 char *stdinname, *stdoutname, *stderrname; 780 struct stdio_dev *inputdev = NULL, *outputdev = NULL, *errdev = NULL; 781 #ifdef CONFIG_SYS_CONSOLE_ENV_OVERWRITE 782 int i; 783 #endif /* CONFIG_SYS_CONSOLE_ENV_OVERWRITE */ 784 #if CONFIG_IS_ENABLED(CONSOLE_MUX) 785 int iomux_err = 0; 786 #endif 787 788 /* set default handlers at first */ 789 gd->jt->getc = serial_getc; 790 gd->jt->tstc = serial_tstc; 791 gd->jt->putc = serial_putc; 792 gd->jt->puts = serial_puts; 793 gd->jt->printf = serial_printf; 794 795 /* stdin stdout and stderr are in environment */ 796 /* scan for it */ 797 stdinname = env_get("stdin"); 798 stdoutname = env_get("stdout"); 799 stderrname = env_get("stderr"); 800 801 if (OVERWRITE_CONSOLE == 0) { /* if not overwritten by config switch */ 802 inputdev = search_device(DEV_FLAGS_INPUT, stdinname); 803 outputdev = search_device(DEV_FLAGS_OUTPUT, stdoutname); 804 errdev = search_device(DEV_FLAGS_OUTPUT, stderrname); 805 #if CONFIG_IS_ENABLED(CONSOLE_MUX) 806 iomux_err = iomux_doenv(stdin, stdinname); 807 iomux_err += iomux_doenv(stdout, stdoutname); 808 iomux_err += iomux_doenv(stderr, stderrname); 809 if (!iomux_err) 810 /* Successful, so skip all the code below. */ 811 goto done; 812 #endif 813 } 814 /* if the devices are overwritten or not found, use default device */ 815 if (inputdev == NULL) { 816 inputdev = search_device(DEV_FLAGS_INPUT, "serial"); 817 } 818 if (outputdev == NULL) { 819 outputdev = search_device(DEV_FLAGS_OUTPUT, "serial"); 820 } 821 if (errdev == NULL) { 822 errdev = search_device(DEV_FLAGS_OUTPUT, "serial"); 823 } 824 /* Initializes output console first */ 825 if (outputdev != NULL) { 826 /* need to set a console if not done above. */ 827 console_doenv(stdout, outputdev); 828 } 829 if (errdev != NULL) { 830 /* need to set a console if not done above. */ 831 console_doenv(stderr, errdev); 832 } 833 if (inputdev != NULL) { 834 /* need to set a console if not done above. */ 835 console_doenv(stdin, inputdev); 836 } 837 838 #if CONFIG_IS_ENABLED(CONSOLE_MUX) 839 done: 840 #endif 841 842 #ifndef CONFIG_SYS_CONSOLE_INFO_QUIET 843 stdio_print_current_devices(); 844 #endif /* CONFIG_SYS_CONSOLE_INFO_QUIET */ 845 #ifdef CONFIG_VIDCONSOLE_AS_LCD 846 if (strstr(stdoutname, "lcd")) 847 printf("Warning: Please change 'lcd' to 'vidconsole' in stdout/stderr environment vars\n"); 848 #endif 849 850 #ifdef CONFIG_SYS_CONSOLE_ENV_OVERWRITE 851 /* set the environment variables (will overwrite previous env settings) */ 852 for (i = 0; i < MAX_FILES; i++) { 853 env_set(stdio_names[i], stdio_devices[i]->name); 854 } 855 #endif /* CONFIG_SYS_CONSOLE_ENV_OVERWRITE */ 856 857 gd->flags |= GD_FLG_DEVINIT; /* device initialization completed */ 858 859 #if 0 860 /* If nothing usable installed, use only the initial console */ 861 if ((stdio_devices[stdin] == NULL) && (stdio_devices[stdout] == NULL)) 862 return 0; 863 #endif 864 print_pre_console_buffer(PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL); 865 return 0; 866 } 867 868 #else /* !CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV) */ 869 870 /* Called after the relocation - use desired console functions */ 871 int console_init_r(void) 872 { 873 struct stdio_dev *inputdev = NULL, *outputdev = NULL; 874 int i; 875 struct list_head *list = stdio_get_list(); 876 struct list_head *pos; 877 struct stdio_dev *dev; 878 879 console_update_silent(); 880 881 #ifdef CONFIG_SPLASH_SCREEN 882 /* 883 * suppress all output if splash screen is enabled and we have 884 * a bmp to display. We redirect the output from frame buffer 885 * console to serial console in this case or suppress it if 886 * "silent" mode was requested. 887 */ 888 if (env_get("splashimage") != NULL) { 889 if (!(gd->flags & GD_FLG_SILENT)) 890 outputdev = search_device (DEV_FLAGS_OUTPUT, "serial"); 891 } 892 #endif 893 894 /* Scan devices looking for input and output devices */ 895 list_for_each(pos, list) { 896 dev = list_entry(pos, struct stdio_dev, list); 897 898 if ((dev->flags & DEV_FLAGS_INPUT) && (inputdev == NULL)) { 899 inputdev = dev; 900 } 901 if ((dev->flags & DEV_FLAGS_OUTPUT) && (outputdev == NULL)) { 902 outputdev = dev; 903 } 904 if(inputdev && outputdev) 905 break; 906 } 907 908 /* Initializes output console first */ 909 if (outputdev != NULL) { 910 console_setfile(stdout, outputdev); 911 console_setfile(stderr, outputdev); 912 #if CONFIG_IS_ENABLED(CONSOLE_MUX) 913 console_devices[stdout][0] = outputdev; 914 console_devices[stderr][0] = outputdev; 915 #endif 916 } 917 918 /* Initializes input console */ 919 if (inputdev != NULL) { 920 console_setfile(stdin, inputdev); 921 #if CONFIG_IS_ENABLED(CONSOLE_MUX) 922 console_devices[stdin][0] = inputdev; 923 #endif 924 } 925 926 #ifndef CONFIG_SYS_CONSOLE_INFO_QUIET 927 stdio_print_current_devices(); 928 #endif /* CONFIG_SYS_CONSOLE_INFO_QUIET */ 929 930 /* Setting environment variables */ 931 for (i = 0; i < MAX_FILES; i++) { 932 env_set(stdio_names[i], stdio_devices[i]->name); 933 } 934 935 gd->flags |= GD_FLG_DEVINIT; /* device initialization completed */ 936 937 #if 0 938 /* If nothing usable installed, use only the initial console */ 939 if ((stdio_devices[stdin] == NULL) && (stdio_devices[stdout] == NULL)) 940 return 0; 941 #endif 942 print_pre_console_buffer(PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL); 943 return 0; 944 } 945 946 #endif /* CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV) */ 947