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 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 #ifdef CONFIG_CONSOLE_RECORD 507 if (gd && (gd->flags & GD_FLG_RECORD) && gd->console_out.start) 508 membuff_putbyte(&gd->console_out, c); 509 #endif 510 #ifdef CONFIG_SILENT_CONSOLE 511 if (gd->flags & GD_FLG_SILENT) 512 return; 513 #endif 514 515 #ifdef CONFIG_DISABLE_CONSOLE 516 if (gd->flags & GD_FLG_DISABLE_CONSOLE) 517 return; 518 #endif 519 520 if (!gd->have_console) 521 return pre_console_putc(c); 522 523 if (gd->flags & GD_FLG_DEVINIT) { 524 /* Send to the standard output */ 525 fputc(stdout, c); 526 } else { 527 /* Send directly to the handler */ 528 pre_console_putc(c); 529 serial_putc(c); 530 } 531 } 532 533 void puts(const char *s) 534 { 535 #ifdef CONFIG_DEBUG_UART 536 if (!gd || !(gd->flags & GD_FLG_SERIAL_READY)) { 537 while (*s) { 538 int ch = *s++; 539 540 printch(ch); 541 } 542 return; 543 } 544 #endif 545 #ifdef CONFIG_CONSOLE_RECORD 546 if (gd && (gd->flags & GD_FLG_RECORD) && gd->console_out.start) 547 membuff_put(&gd->console_out, s, strlen(s)); 548 #endif 549 #ifdef CONFIG_SILENT_CONSOLE 550 if (gd->flags & GD_FLG_SILENT) 551 return; 552 #endif 553 554 #ifdef CONFIG_DISABLE_CONSOLE 555 if (gd->flags & GD_FLG_DISABLE_CONSOLE) 556 return; 557 #endif 558 559 if (!gd->have_console) 560 return pre_console_puts(s); 561 562 if (gd->flags & GD_FLG_DEVINIT) { 563 /* Send to the standard output */ 564 fputs(stdout, s); 565 } else { 566 /* Send directly to the handler */ 567 pre_console_puts(s); 568 serial_puts(s); 569 } 570 } 571 572 #ifdef CONFIG_CONSOLE_RECORD 573 int console_record_init(void) 574 { 575 int ret; 576 577 ret = membuff_new(&gd->console_out, CONFIG_CONSOLE_RECORD_OUT_SIZE); 578 if (ret) 579 return ret; 580 ret = membuff_new(&gd->console_in, CONFIG_CONSOLE_RECORD_IN_SIZE); 581 582 return ret; 583 } 584 585 void console_record_reset(void) 586 { 587 membuff_purge(&gd->console_out); 588 membuff_purge(&gd->console_in); 589 } 590 591 void console_record_reset_enable(void) 592 { 593 console_record_reset(); 594 gd->flags |= GD_FLG_RECORD; 595 } 596 #endif 597 598 /* test if ctrl-c was pressed */ 599 static int ctrlc_disabled = 0; /* see disable_ctrl() */ 600 static int ctrlc_was_pressed = 0; 601 int ctrlc(void) 602 { 603 #ifndef CONFIG_SANDBOX 604 if (!ctrlc_disabled && gd->have_console) { 605 if (tstc()) { 606 switch (getc()) { 607 case 0x03: /* ^C - Control C */ 608 ctrlc_was_pressed = 1; 609 return 1; 610 default: 611 break; 612 } 613 } 614 } 615 #endif 616 617 return 0; 618 } 619 /* Reads user's confirmation. 620 Returns 1 if user's input is "y", "Y", "yes" or "YES" 621 */ 622 int confirm_yesno(void) 623 { 624 int i; 625 char str_input[5]; 626 627 /* Flush input */ 628 while (tstc()) 629 getc(); 630 i = 0; 631 while (i < sizeof(str_input)) { 632 str_input[i] = getc(); 633 putc(str_input[i]); 634 if (str_input[i] == '\r') 635 break; 636 i++; 637 } 638 putc('\n'); 639 if (strncmp(str_input, "y\r", 2) == 0 || 640 strncmp(str_input, "Y\r", 2) == 0 || 641 strncmp(str_input, "yes\r", 4) == 0 || 642 strncmp(str_input, "YES\r", 4) == 0) 643 return 1; 644 return 0; 645 } 646 /* pass 1 to disable ctrlc() checking, 0 to enable. 647 * returns previous state 648 */ 649 int disable_ctrlc(int disable) 650 { 651 int prev = ctrlc_disabled; /* save previous state */ 652 653 ctrlc_disabled = disable; 654 return prev; 655 } 656 657 int had_ctrlc (void) 658 { 659 return ctrlc_was_pressed; 660 } 661 662 void clear_ctrlc(void) 663 { 664 ctrlc_was_pressed = 0; 665 } 666 667 /** U-Boot INIT FUNCTIONS *************************************************/ 668 669 struct stdio_dev *search_device(int flags, const char *name) 670 { 671 struct stdio_dev *dev; 672 673 dev = stdio_get_by_name(name); 674 #ifdef CONFIG_VIDCONSOLE_AS_LCD 675 if (!dev && !strcmp(name, "lcd")) 676 dev = stdio_get_by_name("vidconsole"); 677 #endif 678 679 if (dev && (dev->flags & flags)) 680 return dev; 681 682 return NULL; 683 } 684 685 int console_assign(int file, const char *devname) 686 { 687 int flag; 688 struct stdio_dev *dev; 689 690 /* Check for valid file */ 691 switch (file) { 692 case stdin: 693 flag = DEV_FLAGS_INPUT; 694 break; 695 case stdout: 696 case stderr: 697 flag = DEV_FLAGS_OUTPUT; 698 break; 699 default: 700 return -1; 701 } 702 703 /* Check for valid device name */ 704 705 dev = search_device(flag, devname); 706 707 if (dev) 708 return console_setfile(file, dev); 709 710 return -1; 711 } 712 713 static void console_update_silent(void) 714 { 715 #ifdef CONFIG_SILENT_CONSOLE 716 if (env_get("silent") != NULL) 717 gd->flags |= GD_FLG_SILENT; 718 else 719 gd->flags &= ~GD_FLG_SILENT; 720 #endif 721 } 722 723 int console_announce_r(void) 724 { 725 #if !CONFIG_IS_ENABLED(PRE_CONSOLE_BUFFER) 726 char buf[DISPLAY_OPTIONS_BANNER_LENGTH]; 727 728 display_options_get_banner(false, buf, sizeof(buf)); 729 730 console_puts_noserial(stdout, buf); 731 #endif 732 733 return 0; 734 } 735 736 /* Called before relocation - use serial functions */ 737 int console_init_f(void) 738 { 739 gd->have_console = 1; 740 741 console_update_silent(); 742 743 print_pre_console_buffer(PRE_CONSOLE_FLUSHPOINT1_SERIAL); 744 745 return 0; 746 } 747 748 void stdio_print_current_devices(void) 749 { 750 /* Print information */ 751 puts("In: "); 752 if (stdio_devices[stdin] == NULL) { 753 puts("No input devices available!\n"); 754 } else { 755 printf ("%s\n", stdio_devices[stdin]->name); 756 } 757 758 puts("Out: "); 759 if (stdio_devices[stdout] == NULL) { 760 puts("No output devices available!\n"); 761 } else { 762 printf ("%s\n", stdio_devices[stdout]->name); 763 } 764 765 puts("Err: "); 766 if (stdio_devices[stderr] == NULL) { 767 puts("No error devices available!\n"); 768 } else { 769 printf ("%s\n", stdio_devices[stderr]->name); 770 } 771 } 772 773 #if CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV) 774 /* Called after the relocation - use desired console functions */ 775 int console_init_r(void) 776 { 777 char *stdinname, *stdoutname, *stderrname; 778 struct stdio_dev *inputdev = NULL, *outputdev = NULL, *errdev = NULL; 779 #ifdef CONFIG_SYS_CONSOLE_ENV_OVERWRITE 780 int i; 781 #endif /* CONFIG_SYS_CONSOLE_ENV_OVERWRITE */ 782 #if CONFIG_IS_ENABLED(CONSOLE_MUX) 783 int iomux_err = 0; 784 #endif 785 786 /* set default handlers at first */ 787 gd->jt->getc = serial_getc; 788 gd->jt->tstc = serial_tstc; 789 gd->jt->putc = serial_putc; 790 gd->jt->puts = serial_puts; 791 gd->jt->printf = serial_printf; 792 793 /* stdin stdout and stderr are in environment */ 794 /* scan for it */ 795 stdinname = env_get("stdin"); 796 stdoutname = env_get("stdout"); 797 stderrname = env_get("stderr"); 798 799 if (OVERWRITE_CONSOLE == 0) { /* if not overwritten by config switch */ 800 inputdev = search_device(DEV_FLAGS_INPUT, stdinname); 801 outputdev = search_device(DEV_FLAGS_OUTPUT, stdoutname); 802 errdev = search_device(DEV_FLAGS_OUTPUT, stderrname); 803 #if CONFIG_IS_ENABLED(CONSOLE_MUX) 804 iomux_err = iomux_doenv(stdin, stdinname); 805 iomux_err += iomux_doenv(stdout, stdoutname); 806 iomux_err += iomux_doenv(stderr, stderrname); 807 if (!iomux_err) 808 /* Successful, so skip all the code below. */ 809 goto done; 810 #endif 811 } 812 /* if the devices are overwritten or not found, use default device */ 813 if (inputdev == NULL) { 814 inputdev = search_device(DEV_FLAGS_INPUT, "serial"); 815 } 816 if (outputdev == NULL) { 817 outputdev = search_device(DEV_FLAGS_OUTPUT, "serial"); 818 } 819 if (errdev == NULL) { 820 errdev = search_device(DEV_FLAGS_OUTPUT, "serial"); 821 } 822 /* Initializes output console first */ 823 if (outputdev != NULL) { 824 /* need to set a console if not done above. */ 825 console_doenv(stdout, outputdev); 826 } 827 if (errdev != NULL) { 828 /* need to set a console if not done above. */ 829 console_doenv(stderr, errdev); 830 } 831 if (inputdev != NULL) { 832 /* need to set a console if not done above. */ 833 console_doenv(stdin, inputdev); 834 } 835 836 #if CONFIG_IS_ENABLED(CONSOLE_MUX) 837 done: 838 #endif 839 840 #ifndef CONFIG_SYS_CONSOLE_INFO_QUIET 841 stdio_print_current_devices(); 842 #endif /* CONFIG_SYS_CONSOLE_INFO_QUIET */ 843 #ifdef CONFIG_VIDCONSOLE_AS_LCD 844 if (strstr(stdoutname, "lcd")) 845 printf("Warning: Please change 'lcd' to 'vidconsole' in stdout/stderr environment vars\n"); 846 #endif 847 848 #ifdef CONFIG_SYS_CONSOLE_ENV_OVERWRITE 849 /* set the environment variables (will overwrite previous env settings) */ 850 for (i = 0; i < 3; i++) { 851 env_set(stdio_names[i], stdio_devices[i]->name); 852 } 853 #endif /* CONFIG_SYS_CONSOLE_ENV_OVERWRITE */ 854 855 gd->flags |= GD_FLG_DEVINIT; /* device initialization completed */ 856 857 #if 0 858 /* If nothing usable installed, use only the initial console */ 859 if ((stdio_devices[stdin] == NULL) && (stdio_devices[stdout] == NULL)) 860 return 0; 861 #endif 862 print_pre_console_buffer(PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL); 863 return 0; 864 } 865 866 #else /* !CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV) */ 867 868 /* Called after the relocation - use desired console functions */ 869 int console_init_r(void) 870 { 871 struct stdio_dev *inputdev = NULL, *outputdev = NULL; 872 int i; 873 struct list_head *list = stdio_get_list(); 874 struct list_head *pos; 875 struct stdio_dev *dev; 876 877 console_update_silent(); 878 879 #ifdef CONFIG_SPLASH_SCREEN 880 /* 881 * suppress all output if splash screen is enabled and we have 882 * a bmp to display. We redirect the output from frame buffer 883 * console to serial console in this case or suppress it if 884 * "silent" mode was requested. 885 */ 886 if (env_get("splashimage") != NULL) { 887 if (!(gd->flags & GD_FLG_SILENT)) 888 outputdev = search_device (DEV_FLAGS_OUTPUT, "serial"); 889 } 890 #endif 891 892 /* Scan devices looking for input and output devices */ 893 list_for_each(pos, list) { 894 dev = list_entry(pos, struct stdio_dev, list); 895 896 if ((dev->flags & DEV_FLAGS_INPUT) && (inputdev == NULL)) { 897 inputdev = dev; 898 } 899 if ((dev->flags & DEV_FLAGS_OUTPUT) && (outputdev == NULL)) { 900 outputdev = dev; 901 } 902 if(inputdev && outputdev) 903 break; 904 } 905 906 /* Initializes output console first */ 907 if (outputdev != NULL) { 908 console_setfile(stdout, outputdev); 909 console_setfile(stderr, outputdev); 910 #if CONFIG_IS_ENABLED(CONSOLE_MUX) 911 console_devices[stdout][0] = outputdev; 912 console_devices[stderr][0] = outputdev; 913 #endif 914 } 915 916 /* Initializes input console */ 917 if (inputdev != NULL) { 918 console_setfile(stdin, inputdev); 919 #if CONFIG_IS_ENABLED(CONSOLE_MUX) 920 console_devices[stdin][0] = inputdev; 921 #endif 922 } 923 924 #ifndef CONFIG_SYS_CONSOLE_INFO_QUIET 925 stdio_print_current_devices(); 926 #endif /* CONFIG_SYS_CONSOLE_INFO_QUIET */ 927 928 /* Setting environment variables */ 929 for (i = 0; i < 3; i++) { 930 env_set(stdio_names[i], stdio_devices[i]->name); 931 } 932 933 gd->flags |= GD_FLG_DEVINIT; /* device initialization completed */ 934 935 #if 0 936 /* If nothing usable installed, use only the initial console */ 937 if ((stdio_devices[stdin] == NULL) && (stdio_devices[stdout] == NULL)) 938 return 0; 939 #endif 940 print_pre_console_buffer(PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL); 941 return 0; 942 } 943 944 #endif /* CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV) */ 945