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; 199 200 disable_ctrlc(1); 201 for (i = 0; i < cd_count[file]; i++) { 202 dev = console_devices[file][i]; 203 if (dev->tstc != NULL) { 204 ret = dev->tstc(dev); 205 if (ret > 0) { 206 tstcdev = dev; 207 disable_ctrlc(0); 208 return ret; 209 } 210 } 211 } 212 disable_ctrlc(0); 213 214 return 0; 215 } 216 217 static void console_putc(int file, const char c) 218 { 219 int i; 220 struct stdio_dev *dev; 221 222 for (i = 0; i < cd_count[file]; i++) { 223 dev = console_devices[file][i]; 224 if (dev->putc != NULL) 225 dev->putc(dev, c); 226 } 227 } 228 229 static void console_puts_noserial(int file, const char *s) 230 { 231 int i; 232 struct stdio_dev *dev; 233 234 for (i = 0; i < cd_count[file]; i++) { 235 dev = console_devices[file][i]; 236 if (dev->puts != NULL && !console_dev_is_serial(dev)) 237 dev->puts(dev, s); 238 } 239 } 240 241 static void console_puts(int file, const char *s) 242 { 243 int i; 244 struct stdio_dev *dev; 245 246 for (i = 0; i < cd_count[file]; i++) { 247 dev = console_devices[file][i]; 248 if (dev->puts != NULL) 249 dev->puts(dev, s); 250 } 251 } 252 253 static inline void console_doenv(int file, struct stdio_dev *dev) 254 { 255 iomux_doenv(file, dev->name); 256 } 257 #else 258 static inline int console_getc(int file) 259 { 260 return stdio_devices[file]->getc(stdio_devices[file]); 261 } 262 263 static inline int console_tstc(int file) 264 { 265 return stdio_devices[file]->tstc(stdio_devices[file]); 266 } 267 268 static inline void console_putc(int file, const char c) 269 { 270 stdio_devices[file]->putc(stdio_devices[file], c); 271 } 272 273 static inline void console_puts_noserial(int file, const char *s) 274 { 275 if (!console_dev_is_serial(stdio_devices[file])) 276 stdio_devices[file]->puts(stdio_devices[file], s); 277 } 278 279 static inline void console_puts(int file, const char *s) 280 { 281 stdio_devices[file]->puts(stdio_devices[file], s); 282 } 283 284 static inline void console_doenv(int file, struct stdio_dev *dev) 285 { 286 console_setfile(file, dev); 287 } 288 #endif /* CONIFIG_IS_ENABLED(CONSOLE_MUX) */ 289 290 /** U-Boot INITIAL CONSOLE-NOT COMPATIBLE FUNCTIONS *************************/ 291 292 int serial_printf(const char *fmt, ...) 293 { 294 va_list args; 295 uint i; 296 char printbuffer[CONFIG_SYS_PBSIZE]; 297 298 va_start(args, fmt); 299 300 /* For this to work, printbuffer must be larger than 301 * anything we ever want to print. 302 */ 303 i = vscnprintf(printbuffer, sizeof(printbuffer), fmt, args); 304 va_end(args); 305 306 serial_puts(printbuffer); 307 return i; 308 } 309 310 int fgetc(int file) 311 { 312 if (file < MAX_FILES) { 313 #if CONFIG_IS_ENABLED(CONSOLE_MUX) 314 /* 315 * Effectively poll for input wherever it may be available. 316 */ 317 for (;;) { 318 WATCHDOG_RESET(); 319 /* 320 * Upper layer may have already called tstc() so 321 * check for that first. 322 */ 323 if (tstcdev != NULL) 324 return console_getc(file); 325 console_tstc(file); 326 #ifdef CONFIG_WATCHDOG 327 /* 328 * If the watchdog must be rate-limited then it should 329 * already be handled in board-specific code. 330 */ 331 udelay(1); 332 #endif 333 } 334 #else 335 return console_getc(file); 336 #endif 337 } 338 339 return -1; 340 } 341 342 int ftstc(int file) 343 { 344 if (file < MAX_FILES) 345 return console_tstc(file); 346 347 return -1; 348 } 349 350 void fputc(int file, const char c) 351 { 352 if (file < MAX_FILES) 353 console_putc(file, c); 354 } 355 356 void fputs(int file, const char *s) 357 { 358 if (file < MAX_FILES) 359 console_puts(file, s); 360 } 361 362 int fprintf(int file, const char *fmt, ...) 363 { 364 va_list args; 365 uint i; 366 char printbuffer[CONFIG_SYS_PBSIZE]; 367 368 va_start(args, fmt); 369 370 /* For this to work, printbuffer must be larger than 371 * anything we ever want to print. 372 */ 373 i = vscnprintf(printbuffer, sizeof(printbuffer), fmt, args); 374 va_end(args); 375 376 /* Send to desired file */ 377 fputs(file, printbuffer); 378 return i; 379 } 380 381 /** U-Boot INITIAL CONSOLE-COMPATIBLE FUNCTION *****************************/ 382 383 int getc(void) 384 { 385 #ifdef CONFIG_DISABLE_CONSOLE 386 if (gd->flags & GD_FLG_DISABLE_CONSOLE) 387 return 0; 388 #endif 389 390 if (!gd->have_console) 391 return 0; 392 393 #ifdef CONFIG_CONSOLE_RECORD 394 if (gd->console_in.start) { 395 int ch; 396 397 ch = membuff_getbyte(&gd->console_in); 398 if (ch != -1) 399 return 1; 400 } 401 #endif 402 if (gd->flags & GD_FLG_DEVINIT) { 403 /* Get from the standard input */ 404 return fgetc(stdin); 405 } 406 407 /* Send directly to the handler */ 408 return serial_getc(); 409 } 410 411 int tstc(void) 412 { 413 #ifdef CONFIG_DISABLE_CONSOLE 414 if (gd->flags & GD_FLG_DISABLE_CONSOLE) 415 return 0; 416 #endif 417 418 if (!gd->have_console) 419 return 0; 420 #ifdef CONFIG_CONSOLE_RECORD 421 if (gd->console_in.start) { 422 if (membuff_peekbyte(&gd->console_in) != -1) 423 return 1; 424 } 425 #endif 426 if (gd->flags & GD_FLG_DEVINIT) { 427 /* Test the standard input */ 428 return ftstc(stdin); 429 } 430 431 /* Send directly to the handler */ 432 return serial_tstc(); 433 } 434 435 #define PRE_CONSOLE_FLUSHPOINT1_SERIAL 0 436 #define PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL 1 437 438 #if CONFIG_IS_ENABLED(PRE_CONSOLE_BUFFER) 439 #define CIRC_BUF_IDX(idx) ((idx) % (unsigned long)CONFIG_PRE_CON_BUF_SZ) 440 441 static void pre_console_putc(const char c) 442 { 443 char *buffer; 444 445 buffer = map_sysmem(CONFIG_PRE_CON_BUF_ADDR, CONFIG_PRE_CON_BUF_SZ); 446 447 buffer[CIRC_BUF_IDX(gd->precon_buf_idx++)] = c; 448 449 unmap_sysmem(buffer); 450 } 451 452 static void pre_console_puts(const char *s) 453 { 454 while (*s) 455 pre_console_putc(*s++); 456 } 457 458 static void print_pre_console_buffer(int flushpoint) 459 { 460 unsigned long in = 0, out = 0; 461 char buf_out[CONFIG_PRE_CON_BUF_SZ + 1]; 462 char *buf_in; 463 464 buf_in = map_sysmem(CONFIG_PRE_CON_BUF_ADDR, CONFIG_PRE_CON_BUF_SZ); 465 if (gd->precon_buf_idx > CONFIG_PRE_CON_BUF_SZ) 466 in = gd->precon_buf_idx - CONFIG_PRE_CON_BUF_SZ; 467 468 while (in < gd->precon_buf_idx) 469 buf_out[out++] = buf_in[CIRC_BUF_IDX(in++)]; 470 unmap_sysmem(buf_in); 471 472 buf_out[out] = 0; 473 474 switch (flushpoint) { 475 case PRE_CONSOLE_FLUSHPOINT1_SERIAL: 476 puts(buf_out); 477 break; 478 case PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL: 479 console_puts_noserial(stdout, buf_out); 480 break; 481 } 482 } 483 #else 484 static inline void pre_console_putc(const char c) {} 485 static inline void pre_console_puts(const char *s) {} 486 static inline void print_pre_console_buffer(int flushpoint) {} 487 #endif 488 489 void putc(const char c) 490 { 491 #ifdef CONFIG_SANDBOX 492 /* sandbox can send characters to stdout before it has a console */ 493 if (!gd || !(gd->flags & GD_FLG_SERIAL_READY)) { 494 os_putc(c); 495 return; 496 } 497 #endif 498 #ifdef CONFIG_DEBUG_UART 499 /* if we don't have a console yet, use the debug UART */ 500 if (!gd || !(gd->flags & GD_FLG_SERIAL_READY)) { 501 printch(c); 502 return; 503 } 504 #endif 505 #ifdef CONFIG_CONSOLE_RECORD 506 if (gd && (gd->flags & GD_FLG_RECORD) && gd->console_out.start) 507 membuff_putbyte(&gd->console_out, c); 508 #endif 509 #ifdef CONFIG_SILENT_CONSOLE 510 if (gd->flags & GD_FLG_SILENT) 511 return; 512 #endif 513 514 #ifdef CONFIG_DISABLE_CONSOLE 515 if (gd->flags & GD_FLG_DISABLE_CONSOLE) 516 return; 517 #endif 518 519 if (!gd->have_console) 520 return pre_console_putc(c); 521 522 if (gd->flags & GD_FLG_DEVINIT) { 523 /* Send to the standard output */ 524 fputc(stdout, c); 525 } else { 526 /* Send directly to the handler */ 527 pre_console_putc(c); 528 serial_putc(c); 529 } 530 } 531 532 void puts(const char *s) 533 { 534 #ifdef CONFIG_DEBUG_UART 535 if (!gd || !(gd->flags & GD_FLG_SERIAL_READY)) { 536 while (*s) { 537 int ch = *s++; 538 539 printch(ch); 540 } 541 return; 542 } 543 #endif 544 #ifdef CONFIG_CONSOLE_RECORD 545 if (gd && (gd->flags & GD_FLG_RECORD) && gd->console_out.start) 546 membuff_put(&gd->console_out, s, strlen(s)); 547 #endif 548 #ifdef CONFIG_SILENT_CONSOLE 549 if (gd->flags & GD_FLG_SILENT) 550 return; 551 #endif 552 553 #ifdef CONFIG_DISABLE_CONSOLE 554 if (gd->flags & GD_FLG_DISABLE_CONSOLE) 555 return; 556 #endif 557 558 if (!gd->have_console) 559 return pre_console_puts(s); 560 561 if (gd->flags & GD_FLG_DEVINIT) { 562 /* Send to the standard output */ 563 fputs(stdout, s); 564 } else { 565 /* Send directly to the handler */ 566 pre_console_puts(s); 567 serial_puts(s); 568 } 569 } 570 571 #ifdef CONFIG_CONSOLE_RECORD 572 int console_record_init(void) 573 { 574 int ret; 575 576 ret = membuff_new(&gd->console_out, CONFIG_CONSOLE_RECORD_OUT_SIZE); 577 if (ret) 578 return ret; 579 ret = membuff_new(&gd->console_in, CONFIG_CONSOLE_RECORD_IN_SIZE); 580 581 return ret; 582 } 583 584 void console_record_reset(void) 585 { 586 membuff_purge(&gd->console_out); 587 membuff_purge(&gd->console_in); 588 } 589 590 void console_record_reset_enable(void) 591 { 592 console_record_reset(); 593 gd->flags |= GD_FLG_RECORD; 594 } 595 #endif 596 597 /* test if ctrl-c was pressed */ 598 static int ctrlc_disabled = 0; /* see disable_ctrl() */ 599 static int ctrlc_was_pressed = 0; 600 int ctrlc(void) 601 { 602 #ifndef CONFIG_SANDBOX 603 if (!ctrlc_disabled && gd->have_console) { 604 if (tstc()) { 605 switch (getc()) { 606 case 0x03: /* ^C - Control C */ 607 ctrlc_was_pressed = 1; 608 return 1; 609 default: 610 break; 611 } 612 } 613 } 614 #endif 615 616 return 0; 617 } 618 /* Reads user's confirmation. 619 Returns 1 if user's input is "y", "Y", "yes" or "YES" 620 */ 621 int confirm_yesno(void) 622 { 623 int i; 624 char str_input[5]; 625 626 /* Flush input */ 627 while (tstc()) 628 getc(); 629 i = 0; 630 while (i < sizeof(str_input)) { 631 str_input[i] = getc(); 632 putc(str_input[i]); 633 if (str_input[i] == '\r') 634 break; 635 i++; 636 } 637 putc('\n'); 638 if (strncmp(str_input, "y\r", 2) == 0 || 639 strncmp(str_input, "Y\r", 2) == 0 || 640 strncmp(str_input, "yes\r", 4) == 0 || 641 strncmp(str_input, "YES\r", 4) == 0) 642 return 1; 643 return 0; 644 } 645 /* pass 1 to disable ctrlc() checking, 0 to enable. 646 * returns previous state 647 */ 648 int disable_ctrlc(int disable) 649 { 650 int prev = ctrlc_disabled; /* save previous state */ 651 652 ctrlc_disabled = disable; 653 return prev; 654 } 655 656 int had_ctrlc (void) 657 { 658 return ctrlc_was_pressed; 659 } 660 661 void clear_ctrlc(void) 662 { 663 ctrlc_was_pressed = 0; 664 } 665 666 /** U-Boot INIT FUNCTIONS *************************************************/ 667 668 struct stdio_dev *search_device(int flags, const char *name) 669 { 670 struct stdio_dev *dev; 671 672 dev = stdio_get_by_name(name); 673 #ifdef CONFIG_VIDCONSOLE_AS_LCD 674 if (!dev && !strcmp(name, "lcd")) 675 dev = stdio_get_by_name("vidconsole"); 676 #endif 677 678 if (dev && (dev->flags & flags)) 679 return dev; 680 681 return NULL; 682 } 683 684 int console_assign(int file, const char *devname) 685 { 686 int flag; 687 struct stdio_dev *dev; 688 689 /* Check for valid file */ 690 switch (file) { 691 case stdin: 692 flag = DEV_FLAGS_INPUT; 693 break; 694 case stdout: 695 case stderr: 696 flag = DEV_FLAGS_OUTPUT; 697 break; 698 default: 699 return -1; 700 } 701 702 /* Check for valid device name */ 703 704 dev = search_device(flag, devname); 705 706 if (dev) 707 return console_setfile(file, dev); 708 709 return -1; 710 } 711 712 static void console_update_silent(void) 713 { 714 #ifdef CONFIG_SILENT_CONSOLE 715 if (env_get("silent") != NULL) 716 gd->flags |= GD_FLG_SILENT; 717 else 718 gd->flags &= ~GD_FLG_SILENT; 719 #endif 720 } 721 722 int console_announce_r(void) 723 { 724 #if !CONFIG_IS_ENABLED(PRE_CONSOLE_BUFFER) 725 char buf[DISPLAY_OPTIONS_BANNER_LENGTH]; 726 727 display_options_get_banner(false, buf, sizeof(buf)); 728 729 console_puts_noserial(stdout, buf); 730 #endif 731 732 return 0; 733 } 734 735 /* Called before relocation - use serial functions */ 736 int console_init_f(void) 737 { 738 gd->have_console = 1; 739 740 console_update_silent(); 741 742 print_pre_console_buffer(PRE_CONSOLE_FLUSHPOINT1_SERIAL); 743 744 return 0; 745 } 746 747 void stdio_print_current_devices(void) 748 { 749 /* Print information */ 750 puts("In: "); 751 if (stdio_devices[stdin] == NULL) { 752 puts("No input devices available!\n"); 753 } else { 754 printf ("%s\n", stdio_devices[stdin]->name); 755 } 756 757 puts("Out: "); 758 if (stdio_devices[stdout] == NULL) { 759 puts("No output devices available!\n"); 760 } else { 761 printf ("%s\n", stdio_devices[stdout]->name); 762 } 763 764 puts("Err: "); 765 if (stdio_devices[stderr] == NULL) { 766 puts("No error devices available!\n"); 767 } else { 768 printf ("%s\n", stdio_devices[stderr]->name); 769 } 770 } 771 772 #if CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV) 773 /* Called after the relocation - use desired console functions */ 774 int console_init_r(void) 775 { 776 char *stdinname, *stdoutname, *stderrname; 777 struct stdio_dev *inputdev = NULL, *outputdev = NULL, *errdev = NULL; 778 #ifdef CONFIG_SYS_CONSOLE_ENV_OVERWRITE 779 int i; 780 #endif /* CONFIG_SYS_CONSOLE_ENV_OVERWRITE */ 781 #if CONFIG_IS_ENABLED(CONSOLE_MUX) 782 int iomux_err = 0; 783 #endif 784 785 /* set default handlers at first */ 786 gd->jt->getc = serial_getc; 787 gd->jt->tstc = serial_tstc; 788 gd->jt->putc = serial_putc; 789 gd->jt->puts = serial_puts; 790 gd->jt->printf = serial_printf; 791 792 /* stdin stdout and stderr are in environment */ 793 /* scan for it */ 794 stdinname = env_get("stdin"); 795 stdoutname = env_get("stdout"); 796 stderrname = env_get("stderr"); 797 798 if (OVERWRITE_CONSOLE == 0) { /* if not overwritten by config switch */ 799 inputdev = search_device(DEV_FLAGS_INPUT, stdinname); 800 outputdev = search_device(DEV_FLAGS_OUTPUT, stdoutname); 801 errdev = search_device(DEV_FLAGS_OUTPUT, stderrname); 802 #if CONFIG_IS_ENABLED(CONSOLE_MUX) 803 iomux_err = iomux_doenv(stdin, stdinname); 804 iomux_err += iomux_doenv(stdout, stdoutname); 805 iomux_err += iomux_doenv(stderr, stderrname); 806 if (!iomux_err) 807 /* Successful, so skip all the code below. */ 808 goto done; 809 #endif 810 } 811 /* if the devices are overwritten or not found, use default device */ 812 if (inputdev == NULL) { 813 inputdev = search_device(DEV_FLAGS_INPUT, "serial"); 814 } 815 if (outputdev == NULL) { 816 outputdev = search_device(DEV_FLAGS_OUTPUT, "serial"); 817 } 818 if (errdev == NULL) { 819 errdev = search_device(DEV_FLAGS_OUTPUT, "serial"); 820 } 821 /* Initializes output console first */ 822 if (outputdev != NULL) { 823 /* need to set a console if not done above. */ 824 console_doenv(stdout, outputdev); 825 } 826 if (errdev != NULL) { 827 /* need to set a console if not done above. */ 828 console_doenv(stderr, errdev); 829 } 830 if (inputdev != NULL) { 831 /* need to set a console if not done above. */ 832 console_doenv(stdin, inputdev); 833 } 834 835 #if CONFIG_IS_ENABLED(CONSOLE_MUX) 836 done: 837 #endif 838 839 #ifndef CONFIG_SYS_CONSOLE_INFO_QUIET 840 stdio_print_current_devices(); 841 #endif /* CONFIG_SYS_CONSOLE_INFO_QUIET */ 842 #ifdef CONFIG_VIDCONSOLE_AS_LCD 843 if (strstr(stdoutname, "lcd")) 844 printf("Warning: Please change 'lcd' to 'vidconsole' in stdout/stderr environment vars\n"); 845 #endif 846 847 #ifdef CONFIG_SYS_CONSOLE_ENV_OVERWRITE 848 /* set the environment variables (will overwrite previous env settings) */ 849 for (i = 0; i < MAX_FILES; i++) { 850 env_set(stdio_names[i], stdio_devices[i]->name); 851 } 852 #endif /* CONFIG_SYS_CONSOLE_ENV_OVERWRITE */ 853 854 gd->flags |= GD_FLG_DEVINIT; /* device initialization completed */ 855 856 #if 0 857 /* If nothing usable installed, use only the initial console */ 858 if ((stdio_devices[stdin] == NULL) && (stdio_devices[stdout] == NULL)) 859 return 0; 860 #endif 861 print_pre_console_buffer(PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL); 862 return 0; 863 } 864 865 #else /* !CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV) */ 866 867 /* Called after the relocation - use desired console functions */ 868 int console_init_r(void) 869 { 870 struct stdio_dev *inputdev = NULL, *outputdev = NULL; 871 int i; 872 struct list_head *list = stdio_get_list(); 873 struct list_head *pos; 874 struct stdio_dev *dev; 875 876 console_update_silent(); 877 878 #ifdef CONFIG_SPLASH_SCREEN 879 /* 880 * suppress all output if splash screen is enabled and we have 881 * a bmp to display. We redirect the output from frame buffer 882 * console to serial console in this case or suppress it if 883 * "silent" mode was requested. 884 */ 885 if (env_get("splashimage") != NULL) { 886 if (!(gd->flags & GD_FLG_SILENT)) 887 outputdev = search_device (DEV_FLAGS_OUTPUT, "serial"); 888 } 889 #endif 890 891 /* Scan devices looking for input and output devices */ 892 list_for_each(pos, list) { 893 dev = list_entry(pos, struct stdio_dev, list); 894 895 if ((dev->flags & DEV_FLAGS_INPUT) && (inputdev == NULL)) { 896 inputdev = dev; 897 } 898 if ((dev->flags & DEV_FLAGS_OUTPUT) && (outputdev == NULL)) { 899 outputdev = dev; 900 } 901 if(inputdev && outputdev) 902 break; 903 } 904 905 /* Initializes output console first */ 906 if (outputdev != NULL) { 907 console_setfile(stdout, outputdev); 908 console_setfile(stderr, outputdev); 909 #if CONFIG_IS_ENABLED(CONSOLE_MUX) 910 console_devices[stdout][0] = outputdev; 911 console_devices[stderr][0] = outputdev; 912 #endif 913 } 914 915 /* Initializes input console */ 916 if (inputdev != NULL) { 917 console_setfile(stdin, inputdev); 918 #if CONFIG_IS_ENABLED(CONSOLE_MUX) 919 console_devices[stdin][0] = inputdev; 920 #endif 921 } 922 923 #ifndef CONFIG_SYS_CONSOLE_INFO_QUIET 924 stdio_print_current_devices(); 925 #endif /* CONFIG_SYS_CONSOLE_INFO_QUIET */ 926 927 /* Setting environment variables */ 928 for (i = 0; i < MAX_FILES; i++) { 929 env_set(stdio_names[i], stdio_devices[i]->name); 930 } 931 932 gd->flags |= GD_FLG_DEVINIT; /* device initialization completed */ 933 934 #if 0 935 /* If nothing usable installed, use only the initial console */ 936 if ((stdio_devices[stdin] == NULL) && (stdio_devices[stdout] == NULL)) 937 return 0; 938 #endif 939 print_pre_console_buffer(PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL); 940 return 0; 941 } 942 943 #endif /* CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV) */ 944