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 #include <vsprintf.h> 23 24 DECLARE_GLOBAL_DATA_PTR; 25 26 static int on_console(const char *name, const char *value, enum env_op op, 27 int flags) 28 { 29 int console = -1; 30 31 /* Check for console redirection */ 32 if (strcmp(name, "stdin") == 0) 33 console = stdin; 34 else if (strcmp(name, "stdout") == 0) 35 console = stdout; 36 else if (strcmp(name, "stderr") == 0) 37 console = stderr; 38 39 /* if not actually setting a console variable, we don't care */ 40 if (console == -1 || (gd->flags & GD_FLG_DEVINIT) == 0) 41 return 0; 42 43 switch (op) { 44 case env_op_create: 45 case env_op_overwrite: 46 47 #if CONFIG_IS_ENABLED(CONSOLE_MUX) 48 if (iomux_doenv(console, value)) 49 return 1; 50 #else 51 /* Try assigning specified device */ 52 if (console_assign(console, value) < 0) 53 return 1; 54 #endif 55 return 0; 56 57 case env_op_delete: 58 if ((flags & H_FORCE) == 0) 59 printf("Can't delete \"%s\"\n", name); 60 return 1; 61 62 default: 63 return 0; 64 } 65 } 66 U_BOOT_ENV_CALLBACK(console, on_console); 67 68 #ifdef CONFIG_SILENT_CONSOLE 69 static int on_silent(const char *name, const char *value, enum env_op op, 70 int flags) 71 { 72 #if !CONFIG_IS_ENABLED(SILENT_CONSOLE_UPDATE_ON_SET) 73 if (flags & H_INTERACTIVE) 74 return 0; 75 #endif 76 #if !CONFIG_IS_ENABLED(SILENT_CONSOLE_UPDATE_ON_RELOC) 77 if ((flags & H_INTERACTIVE) == 0) 78 return 0; 79 #endif 80 81 if (value != NULL) 82 gd->flags |= GD_FLG_SILENT; 83 else 84 gd->flags &= ~GD_FLG_SILENT; 85 86 return 0; 87 } 88 U_BOOT_ENV_CALLBACK(silent, on_silent); 89 #endif 90 91 #if CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV) 92 /* 93 * if overwrite_console returns 1, the stdin, stderr and stdout 94 * are switched to the serial port, else the settings in the 95 * environment are used 96 */ 97 #ifdef CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE 98 extern int overwrite_console(void); 99 #define OVERWRITE_CONSOLE overwrite_console() 100 #else 101 #define OVERWRITE_CONSOLE 0 102 #endif /* CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE */ 103 104 #endif /* CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV) */ 105 106 static int console_setfile(int file, struct stdio_dev * dev) 107 { 108 int error = 0; 109 110 if (dev == NULL) 111 return -1; 112 113 switch (file) { 114 case stdin: 115 case stdout: 116 case stderr: 117 /* Start new device */ 118 if (dev->start) { 119 error = dev->start(dev); 120 /* If it's not started dont use it */ 121 if (error < 0) 122 break; 123 } 124 125 /* Assign the new device (leaving the existing one started) */ 126 stdio_devices[file] = dev; 127 128 /* 129 * Update monitor functions 130 * (to use the console stuff by other applications) 131 */ 132 switch (file) { 133 case stdin: 134 gd->jt->getc = getc; 135 gd->jt->tstc = tstc; 136 break; 137 case stdout: 138 gd->jt->putc = putc; 139 gd->jt->puts = puts; 140 gd->jt->printf = printf; 141 break; 142 } 143 break; 144 145 default: /* Invalid file ID */ 146 error = -1; 147 } 148 return error; 149 } 150 151 /** 152 * console_dev_is_serial() - Check if a stdio device is a serial device 153 * 154 * @sdev: Device to check 155 * @return true if this device is in the serial uclass (or for pre-driver-model, 156 * whether it is called "serial". 157 */ 158 static bool console_dev_is_serial(struct stdio_dev *sdev) 159 { 160 bool is_serial; 161 162 #ifdef CONFIG_DM_SERIAL 163 if (sdev->flags & DEV_FLAGS_DM) { 164 struct udevice *dev = sdev->priv; 165 166 is_serial = device_get_uclass_id(dev) == UCLASS_SERIAL; 167 } else 168 #endif 169 is_serial = !strcmp(sdev->name, "serial"); 170 171 return is_serial; 172 } 173 174 #if CONFIG_IS_ENABLED(CONSOLE_MUX) 175 /** Console I/O multiplexing *******************************************/ 176 177 static struct stdio_dev *tstcdev; 178 struct stdio_dev **console_devices[MAX_FILES]; 179 int cd_count[MAX_FILES]; 180 181 /* 182 * This depends on tstc() always being called before getc(). 183 * This is guaranteed to be true because this routine is called 184 * only from fgetc() which assures it. 185 * No attempt is made to demultiplex multiple input sources. 186 */ 187 static int console_getc(int file) 188 { 189 unsigned char ret; 190 191 /* This is never called with testcdev == NULL */ 192 ret = tstcdev->getc(tstcdev); 193 tstcdev = NULL; 194 return ret; 195 } 196 197 static int console_tstc(int file) 198 { 199 int i, ret; 200 struct stdio_dev *dev; 201 202 disable_ctrlc(1); 203 for (i = 0; i < cd_count[file]; i++) { 204 dev = console_devices[file][i]; 205 if (dev->tstc != NULL) { 206 ret = dev->tstc(dev); 207 if (ret > 0) { 208 tstcdev = dev; 209 disable_ctrlc(0); 210 return ret; 211 } 212 } 213 } 214 disable_ctrlc(0); 215 216 return 0; 217 } 218 219 static void console_putc(int file, const char c) 220 { 221 int i; 222 struct stdio_dev *dev; 223 224 for (i = 0; i < cd_count[file]; i++) { 225 dev = console_devices[file][i]; 226 if (dev->putc != NULL) 227 dev->putc(dev, c); 228 } 229 } 230 231 static void console_puts_noserial(int file, const char *s) 232 { 233 int i; 234 struct stdio_dev *dev; 235 236 for (i = 0; i < cd_count[file]; i++) { 237 dev = console_devices[file][i]; 238 if (dev->puts != NULL && !console_dev_is_serial(dev)) 239 dev->puts(dev, s); 240 } 241 } 242 243 static void console_puts(int file, const char *s) 244 { 245 int i; 246 struct stdio_dev *dev; 247 248 for (i = 0; i < cd_count[file]; i++) { 249 dev = console_devices[file][i]; 250 if (dev->puts != NULL) 251 dev->puts(dev, s); 252 } 253 } 254 255 static inline void console_doenv(int file, struct stdio_dev *dev) 256 { 257 iomux_doenv(file, dev->name); 258 } 259 #else 260 static inline int console_getc(int file) 261 { 262 return stdio_devices[file]->getc(stdio_devices[file]); 263 } 264 265 static inline int console_tstc(int file) 266 { 267 return stdio_devices[file]->tstc(stdio_devices[file]); 268 } 269 270 static inline void console_putc(int file, const char c) 271 { 272 stdio_devices[file]->putc(stdio_devices[file], c); 273 } 274 275 static inline void console_puts_noserial(int file, const char *s) 276 { 277 if (!console_dev_is_serial(stdio_devices[file])) 278 stdio_devices[file]->puts(stdio_devices[file], s); 279 } 280 281 static inline void console_puts(int file, const char *s) 282 { 283 stdio_devices[file]->puts(stdio_devices[file], s); 284 } 285 286 static inline void console_doenv(int file, struct stdio_dev *dev) 287 { 288 console_setfile(file, dev); 289 } 290 #endif /* CONIFIG_IS_ENABLED(CONSOLE_MUX) */ 291 292 /** U-Boot INITIAL CONSOLE-NOT COMPATIBLE FUNCTIONS *************************/ 293 294 int serial_printf(const char *fmt, ...) 295 { 296 va_list args; 297 uint i; 298 char printbuffer[CONFIG_SYS_PBSIZE]; 299 300 va_start(args, fmt); 301 302 /* For this to work, printbuffer must be larger than 303 * anything we ever want to print. 304 */ 305 i = vscnprintf(printbuffer, sizeof(printbuffer), fmt, args); 306 va_end(args); 307 308 serial_puts(printbuffer); 309 return i; 310 } 311 312 int fgetc(int file) 313 { 314 if (file < MAX_FILES) { 315 #if CONFIG_IS_ENABLED(CONSOLE_MUX) 316 /* 317 * Effectively poll for input wherever it may be available. 318 */ 319 for (;;) { 320 WATCHDOG_RESET(); 321 /* 322 * Upper layer may have already called tstc() so 323 * check for that first. 324 */ 325 if (tstcdev != NULL) 326 return console_getc(file); 327 console_tstc(file); 328 #ifdef CONFIG_WATCHDOG 329 /* 330 * If the watchdog must be rate-limited then it should 331 * already be handled in board-specific code. 332 */ 333 udelay(1); 334 #endif 335 } 336 #else 337 return console_getc(file); 338 #endif 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 print_pre_console_buffer(int flushpoint) 455 { 456 unsigned long in = 0, out = 0; 457 char buf_out[CONFIG_PRE_CON_BUF_SZ + 1]; 458 char *buf_in; 459 460 buf_in = map_sysmem(CONFIG_PRE_CON_BUF_ADDR, CONFIG_PRE_CON_BUF_SZ); 461 if (gd->precon_buf_idx > CONFIG_PRE_CON_BUF_SZ) 462 in = gd->precon_buf_idx - CONFIG_PRE_CON_BUF_SZ; 463 464 while (in < gd->precon_buf_idx) 465 buf_out[out++] = buf_in[CIRC_BUF_IDX(in++)]; 466 unmap_sysmem(buf_in); 467 468 buf_out[out] = 0; 469 470 switch (flushpoint) { 471 case PRE_CONSOLE_FLUSHPOINT1_SERIAL: 472 puts(buf_out); 473 break; 474 case PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL: 475 console_puts_noserial(stdout, buf_out); 476 break; 477 } 478 } 479 #else 480 static inline void pre_console_putc(const char c) {} 481 static inline void print_pre_console_buffer(int flushpoint) {} 482 #endif 483 484 void putc(const char c) 485 { 486 #ifdef CONFIG_DEBUG_UART 487 /* if we don't have a console yet, use the debug UART */ 488 if (!gd || !(gd->flags & GD_FLG_SERIAL_READY)) { 489 printch(c); 490 return; 491 } 492 #endif 493 #ifdef CONFIG_CONSOLE_RECORD 494 if (gd && (gd->flags & GD_FLG_RECORD) && gd->console_out.start) 495 membuff_putbyte(&gd->console_out, c); 496 #endif 497 #ifdef CONFIG_SILENT_CONSOLE 498 if (gd->flags & GD_FLG_SILENT) 499 return; 500 #endif 501 502 #ifdef CONFIG_DISABLE_CONSOLE 503 if (gd->flags & GD_FLG_DISABLE_CONSOLE) 504 return; 505 #endif 506 507 if (!gd->have_console) 508 return pre_console_putc(c); 509 510 if (gd->flags & GD_FLG_DEVINIT) { 511 /* Send to the standard output */ 512 fputc(stdout, c); 513 } else { 514 /* Send directly to the handler */ 515 pre_console_putc(c); 516 serial_putc(c); 517 } 518 } 519 520 #if (!defined(CONFIG_SPL_BUILD) && defined(CONFIG_BOOTSTAGE_PRINTF_TIMESTAMP)) 521 static void vspfunc(char *buf, size_t size, char *format, ...) 522 { 523 va_list ap; 524 525 va_start(ap, format); 526 vsnprintf(buf, size, format, ap); 527 va_end(ap); 528 } 529 530 void puts(const char *s) 531 { 532 unsigned long ts_sec, ts_msec, ticks; 533 char pr_timestamp[32], *p; 534 535 while (*s) { 536 if (*s == '\n') { 537 gd->new_line = 1; 538 putc(*s++); 539 continue; 540 } 541 542 if (gd->new_line) { 543 gd->new_line = 0; 544 ticks = (get_ticks() / 24ULL); 545 ts_sec = ticks / 1000000; 546 ts_msec = ticks % 1000000; 547 vspfunc(pr_timestamp, sizeof(pr_timestamp), 548 "[%5lu.%06lu] ", ts_sec, ts_msec); 549 p = pr_timestamp; 550 while (*p) 551 putc(*p++); 552 } 553 554 putc(*s++); 555 } 556 } 557 #else 558 void puts(const char *s) 559 { 560 while (*s) 561 putc(*s++); 562 } 563 #endif 564 565 566 #ifdef CONFIG_CONSOLE_RECORD 567 int console_record_init(void) 568 { 569 int ret; 570 571 ret = membuff_new(&gd->console_out, CONFIG_CONSOLE_RECORD_OUT_SIZE); 572 if (ret) 573 return ret; 574 ret = membuff_new(&gd->console_in, CONFIG_CONSOLE_RECORD_IN_SIZE); 575 576 return ret; 577 } 578 579 void console_record_reset(void) 580 { 581 membuff_purge(&gd->console_out); 582 membuff_purge(&gd->console_in); 583 } 584 585 void console_record_reset_enable(void) 586 { 587 console_record_reset(); 588 gd->flags |= GD_FLG_RECORD; 589 } 590 #endif 591 592 /* test if ctrl-c was pressed */ 593 static int ctrlc_disabled = 0; /* see disable_ctrl() */ 594 static int ctrlc_was_pressed = 0; 595 int ctrlc(void) 596 { 597 #ifndef CONFIG_SANDBOX 598 if (!ctrlc_disabled && gd->have_console) { 599 if (tstc()) { 600 switch (getc()) { 601 case 0x03: /* ^C - Control C */ 602 ctrlc_was_pressed = 1; 603 return 1; 604 default: 605 break; 606 } 607 } 608 } 609 #endif 610 611 return 0; 612 } 613 /* Reads user's confirmation. 614 Returns 1 if user's input is "y", "Y", "yes" or "YES" 615 */ 616 int confirm_yesno(void) 617 { 618 int i; 619 char str_input[5]; 620 621 /* Flush input */ 622 while (tstc()) 623 getc(); 624 i = 0; 625 while (i < sizeof(str_input)) { 626 str_input[i] = getc(); 627 putc(str_input[i]); 628 if (str_input[i] == '\r') 629 break; 630 i++; 631 } 632 putc('\n'); 633 if (strncmp(str_input, "y\r", 2) == 0 || 634 strncmp(str_input, "Y\r", 2) == 0 || 635 strncmp(str_input, "yes\r", 4) == 0 || 636 strncmp(str_input, "YES\r", 4) == 0) 637 return 1; 638 return 0; 639 } 640 /* pass 1 to disable ctrlc() checking, 0 to enable. 641 * returns previous state 642 */ 643 int disable_ctrlc(int disable) 644 { 645 int prev = ctrlc_disabled; /* save previous state */ 646 647 ctrlc_disabled = disable; 648 return prev; 649 } 650 651 int had_ctrlc (void) 652 { 653 return ctrlc_was_pressed; 654 } 655 656 void clear_ctrlc(void) 657 { 658 ctrlc_was_pressed = 0; 659 } 660 661 /** U-Boot INIT FUNCTIONS *************************************************/ 662 663 struct stdio_dev *search_device(int flags, const char *name) 664 { 665 struct stdio_dev *dev; 666 667 dev = stdio_get_by_name(name); 668 #ifdef CONFIG_VIDCONSOLE_AS_LCD 669 if (!dev && !strcmp(name, "lcd")) 670 dev = stdio_get_by_name("vidconsole"); 671 #endif 672 673 if (dev && (dev->flags & flags)) 674 return dev; 675 676 return NULL; 677 } 678 679 int console_assign(int file, const char *devname) 680 { 681 int flag; 682 struct stdio_dev *dev; 683 684 /* Check for valid file */ 685 switch (file) { 686 case stdin: 687 flag = DEV_FLAGS_INPUT; 688 break; 689 case stdout: 690 case stderr: 691 flag = DEV_FLAGS_OUTPUT; 692 break; 693 default: 694 return -1; 695 } 696 697 /* Check for valid device name */ 698 699 dev = search_device(flag, devname); 700 701 if (dev) 702 return console_setfile(file, dev); 703 704 return -1; 705 } 706 707 static void console_update_silent(void) 708 { 709 #ifdef CONFIG_SILENT_CONSOLE 710 if (env_get("silent") != NULL) { 711 printf("U-Boot: enable slient console\n"); 712 gd->flags |= GD_FLG_SILENT; 713 } else { 714 gd->flags &= ~GD_FLG_SILENT; 715 } 716 #endif 717 } 718 719 int console_announce_r(void) 720 { 721 #if !CONFIG_IS_ENABLED(PRE_CONSOLE_BUFFER) 722 char buf[DISPLAY_OPTIONS_BANNER_LENGTH]; 723 724 display_options_get_banner(false, buf, sizeof(buf)); 725 726 console_puts_noserial(stdout, buf); 727 #endif 728 729 return 0; 730 } 731 732 /* Called before relocation - use serial functions */ 733 int console_init_f(void) 734 { 735 gd->have_console = 1; 736 737 console_update_silent(); 738 739 print_pre_console_buffer(PRE_CONSOLE_FLUSHPOINT1_SERIAL); 740 741 return 0; 742 } 743 744 void stdio_print_current_devices(void) 745 { 746 /* Print information */ 747 puts("In: "); 748 if (stdio_devices[stdin] == NULL) { 749 puts("No input devices available!\n"); 750 } else { 751 printf ("%s\n", stdio_devices[stdin]->name); 752 } 753 754 puts("Out: "); 755 if (stdio_devices[stdout] == NULL) { 756 puts("No output devices available!\n"); 757 } else { 758 printf ("%s\n", stdio_devices[stdout]->name); 759 } 760 761 puts("Err: "); 762 if (stdio_devices[stderr] == NULL) { 763 puts("No error devices available!\n"); 764 } else { 765 printf ("%s\n", stdio_devices[stderr]->name); 766 } 767 } 768 769 #if CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV) 770 /* Called after the relocation - use desired console functions */ 771 int console_init_r(void) 772 { 773 char *stdinname, *stdoutname, *stderrname; 774 struct stdio_dev *inputdev = NULL, *outputdev = NULL, *errdev = NULL; 775 #ifdef CONFIG_SYS_CONSOLE_ENV_OVERWRITE 776 int i; 777 #endif /* CONFIG_SYS_CONSOLE_ENV_OVERWRITE */ 778 #if CONFIG_IS_ENABLED(CONSOLE_MUX) 779 int iomux_err = 0; 780 #endif 781 782 /* set default handlers at first */ 783 gd->jt->getc = serial_getc; 784 gd->jt->tstc = serial_tstc; 785 gd->jt->putc = serial_putc; 786 gd->jt->puts = serial_puts; 787 gd->jt->printf = serial_printf; 788 789 /* stdin stdout and stderr are in environment */ 790 /* scan for it */ 791 stdinname = env_get("stdin"); 792 stdoutname = env_get("stdout"); 793 stderrname = env_get("stderr"); 794 795 if (OVERWRITE_CONSOLE == 0) { /* if not overwritten by config switch */ 796 inputdev = search_device(DEV_FLAGS_INPUT, stdinname); 797 outputdev = search_device(DEV_FLAGS_OUTPUT, stdoutname); 798 errdev = search_device(DEV_FLAGS_OUTPUT, stderrname); 799 #if CONFIG_IS_ENABLED(CONSOLE_MUX) 800 iomux_err = iomux_doenv(stdin, stdinname); 801 iomux_err += iomux_doenv(stdout, stdoutname); 802 iomux_err += iomux_doenv(stderr, stderrname); 803 if (!iomux_err) 804 /* Successful, so skip all the code below. */ 805 goto done; 806 #endif 807 } 808 /* if the devices are overwritten or not found, use default device */ 809 if (inputdev == NULL) { 810 inputdev = search_device(DEV_FLAGS_INPUT, "serial"); 811 } 812 if (outputdev == NULL) { 813 outputdev = search_device(DEV_FLAGS_OUTPUT, "serial"); 814 } 815 if (errdev == NULL) { 816 errdev = search_device(DEV_FLAGS_OUTPUT, "serial"); 817 } 818 /* Initializes output console first */ 819 if (outputdev != NULL) { 820 /* need to set a console if not done above. */ 821 console_doenv(stdout, outputdev); 822 } 823 if (errdev != NULL) { 824 /* need to set a console if not done above. */ 825 console_doenv(stderr, errdev); 826 } 827 if (inputdev != NULL) { 828 /* need to set a console if not done above. */ 829 console_doenv(stdin, inputdev); 830 } 831 832 #if CONFIG_IS_ENABLED(CONSOLE_MUX) 833 done: 834 #endif 835 836 #ifndef CONFIG_SYS_CONSOLE_INFO_QUIET 837 stdio_print_current_devices(); 838 #endif /* CONFIG_SYS_CONSOLE_INFO_QUIET */ 839 #ifdef CONFIG_VIDCONSOLE_AS_LCD 840 if (strstr(stdoutname, "lcd")) 841 printf("Warning: Please change 'lcd' to 'vidconsole' in stdout/stderr environment vars\n"); 842 #endif 843 844 #ifdef CONFIG_SYS_CONSOLE_ENV_OVERWRITE 845 /* set the environment variables (will overwrite previous env settings) */ 846 for (i = 0; i < 3; i++) { 847 env_set(stdio_names[i], stdio_devices[i]->name); 848 } 849 #endif /* CONFIG_SYS_CONSOLE_ENV_OVERWRITE */ 850 851 gd->flags |= GD_FLG_DEVINIT; /* device initialization completed */ 852 853 #if 0 854 /* If nothing usable installed, use only the initial console */ 855 if ((stdio_devices[stdin] == NULL) && (stdio_devices[stdout] == NULL)) 856 return 0; 857 #endif 858 print_pre_console_buffer(PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL); 859 return 0; 860 } 861 862 #else /* !CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV) */ 863 864 /* Called after the relocation - use desired console functions */ 865 int console_init_r(void) 866 { 867 struct stdio_dev *inputdev = NULL, *outputdev = NULL; 868 int i; 869 struct list_head *list = stdio_get_list(); 870 struct list_head *pos; 871 struct stdio_dev *dev; 872 873 console_update_silent(); 874 875 #ifdef CONFIG_SPLASH_SCREEN 876 /* 877 * suppress all output if splash screen is enabled and we have 878 * a bmp to display. We redirect the output from frame buffer 879 * console to serial console in this case or suppress it if 880 * "silent" mode was requested. 881 */ 882 if (env_get("splashimage") != NULL) { 883 if (!(gd->flags & GD_FLG_SILENT)) 884 outputdev = search_device (DEV_FLAGS_OUTPUT, "serial"); 885 } 886 #endif 887 888 /* Scan devices looking for input and output devices */ 889 list_for_each(pos, list) { 890 dev = list_entry(pos, struct stdio_dev, list); 891 892 if ((dev->flags & DEV_FLAGS_INPUT) && (inputdev == NULL)) { 893 inputdev = dev; 894 } 895 if ((dev->flags & DEV_FLAGS_OUTPUT) && (outputdev == NULL)) { 896 outputdev = dev; 897 } 898 if(inputdev && outputdev) 899 break; 900 } 901 902 /* Initializes output console first */ 903 if (outputdev != NULL) { 904 console_setfile(stdout, outputdev); 905 console_setfile(stderr, outputdev); 906 #if CONFIG_IS_ENABLED(CONSOLE_MUX) 907 console_devices[stdout][0] = outputdev; 908 console_devices[stderr][0] = outputdev; 909 #endif 910 } 911 912 /* Initializes input console */ 913 if (inputdev != NULL) { 914 console_setfile(stdin, inputdev); 915 #if CONFIG_IS_ENABLED(CONSOLE_MUX) 916 console_devices[stdin][0] = inputdev; 917 #endif 918 } 919 920 #ifndef CONFIG_SYS_CONSOLE_INFO_QUIET 921 stdio_print_current_devices(); 922 #endif /* CONFIG_SYS_CONSOLE_INFO_QUIET */ 923 924 /* Setting environment variables */ 925 for (i = 0; i < 3; i++) { 926 env_set(stdio_names[i], stdio_devices[i]->name); 927 } 928 929 gd->flags |= GD_FLG_DEVINIT; /* device initialization completed */ 930 931 #if 0 932 /* If nothing usable installed, use only the initial console */ 933 if ((stdio_devices[stdin] == NULL) && (stdio_devices[stdout] == NULL)) 934 return 0; 935 #endif 936 print_pre_console_buffer(PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL); 937 return 0; 938 } 939 940 #endif /* CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV) */ 941