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 /* Don't allow drivers call tstc() to do some "exit" event(maybe enter hush) */ 416 #if defined(CONFIG_ARCH_ROCKCHIP) && \ 417 defined(CONFIG_AVB_VBMETA_PUBLIC_KEY_VALIDATE) && \ 418 defined(CONFIG_BOOTDELAY) && (CONFIG_BOOTDELAY <= 0) 419 return 0; 420 #endif 421 422 #ifdef CONFIG_DISABLE_CONSOLE 423 if (gd->flags & GD_FLG_DISABLE_CONSOLE) 424 return 0; 425 #endif 426 427 if (!gd->have_console) 428 return 0; 429 #ifdef CONFIG_CONSOLE_RECORD 430 if (gd->console_in.start) { 431 if (membuff_peekbyte(&gd->console_in) != -1) 432 return 1; 433 } 434 #endif 435 if (gd->flags & GD_FLG_DEVINIT) { 436 /* Test the standard input */ 437 return ftstc(stdin); 438 } 439 440 /* Send directly to the handler */ 441 return serial_tstc(); 442 } 443 444 #define PRE_CONSOLE_FLUSHPOINT1_SERIAL 0 445 #define PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL 1 446 447 #if CONFIG_IS_ENABLED(PRE_CONSOLE_BUFFER) 448 #define CIRC_BUF_IDX(idx) ((idx) % (unsigned long)CONFIG_PRE_CON_BUF_SZ) 449 450 static void pre_console_putc(const char c) 451 { 452 char *buffer; 453 454 buffer = map_sysmem(CONFIG_PRE_CON_BUF_ADDR, CONFIG_PRE_CON_BUF_SZ); 455 456 buffer[CIRC_BUF_IDX(gd->precon_buf_idx++)] = c; 457 458 unmap_sysmem(buffer); 459 } 460 461 static void print_pre_console_buffer(int flushpoint) 462 { 463 unsigned long in = 0, out = 0; 464 char buf_out[CONFIG_PRE_CON_BUF_SZ + 1]; 465 char *buf_in; 466 467 buf_in = map_sysmem(CONFIG_PRE_CON_BUF_ADDR, CONFIG_PRE_CON_BUF_SZ); 468 if (gd->precon_buf_idx > CONFIG_PRE_CON_BUF_SZ) 469 in = gd->precon_buf_idx - CONFIG_PRE_CON_BUF_SZ; 470 471 while (in < gd->precon_buf_idx) 472 buf_out[out++] = buf_in[CIRC_BUF_IDX(in++)]; 473 unmap_sysmem(buf_in); 474 475 buf_out[out] = 0; 476 477 switch (flushpoint) { 478 case PRE_CONSOLE_FLUSHPOINT1_SERIAL: 479 puts(buf_out); 480 break; 481 case PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL: 482 console_puts_noserial(stdout, buf_out); 483 break; 484 } 485 } 486 #else 487 static inline void pre_console_putc(const char c) {} 488 static inline void print_pre_console_buffer(int flushpoint) {} 489 #endif 490 491 void putc(const char c) 492 { 493 #ifdef CONFIG_DEBUG_UART 494 /* if we don't have a console yet, use the debug UART */ 495 if (!gd || !(gd->flags & GD_FLG_SERIAL_READY)) { 496 printch(c); 497 return; 498 } 499 #endif 500 #ifdef CONFIG_CONSOLE_RECORD 501 if (gd && (gd->flags & GD_FLG_RECORD) && gd->console_out.start) 502 membuff_putbyte(&gd->console_out, c); 503 #endif 504 #ifdef CONFIG_SILENT_CONSOLE 505 if (gd->flags & GD_FLG_SILENT) 506 return; 507 #endif 508 509 #ifdef CONFIG_DISABLE_CONSOLE 510 if (gd->flags & GD_FLG_DISABLE_CONSOLE) 511 return; 512 #endif 513 514 if (!gd->have_console) 515 return pre_console_putc(c); 516 517 if (gd->flags & GD_FLG_DEVINIT) { 518 /* Send to the standard output */ 519 fputc(stdout, c); 520 } else { 521 /* Send directly to the handler */ 522 pre_console_putc(c); 523 serial_putc(c); 524 } 525 } 526 527 #if (!defined(CONFIG_SPL_BUILD) && defined(CONFIG_BOOTSTAGE_PRINTF_TIMESTAMP)) 528 static void vspfunc(char *buf, size_t size, char *format, ...) 529 { 530 va_list ap; 531 532 va_start(ap, format); 533 vsnprintf(buf, size, format, ap); 534 va_end(ap); 535 } 536 537 void puts(const char *s) 538 { 539 unsigned long ts_sec, ts_msec, ticks; 540 char pr_timestamp[32], *p; 541 542 while (*s) { 543 if (*s == '\n') { 544 gd->new_line = 1; 545 putc(*s++); 546 continue; 547 } 548 549 if (gd->new_line) { 550 gd->new_line = 0; 551 ticks = (get_ticks() / 24ULL); 552 ts_sec = ticks / 1000000; 553 ts_msec = ticks % 1000000; 554 vspfunc(pr_timestamp, sizeof(pr_timestamp), 555 "[%5lu.%06lu] ", ts_sec, ts_msec); 556 p = pr_timestamp; 557 while (*p) 558 putc(*p++); 559 } 560 561 putc(*s++); 562 } 563 } 564 #else 565 void puts(const char *s) 566 { 567 while (*s) 568 putc(*s++); 569 } 570 #endif 571 572 573 #ifdef CONFIG_CONSOLE_RECORD 574 int console_record_init(void) 575 { 576 int ret; 577 578 ret = membuff_new(&gd->console_out, CONFIG_CONSOLE_RECORD_OUT_SIZE); 579 if (ret) 580 return ret; 581 ret = membuff_new(&gd->console_in, CONFIG_CONSOLE_RECORD_IN_SIZE); 582 583 return ret; 584 } 585 586 void console_record_reset(void) 587 { 588 membuff_purge(&gd->console_out); 589 membuff_purge(&gd->console_in); 590 } 591 592 void console_record_reset_enable(void) 593 { 594 console_record_reset(); 595 gd->flags |= GD_FLG_RECORD; 596 } 597 #endif 598 599 /* test if ctrl-c was pressed */ 600 static int ctrlc_disabled = 0; /* see disable_ctrl() */ 601 static int ctrlc_was_pressed = 0; 602 int ctrlc(void) 603 { 604 /* Don't allow drivers call ctrlc() to do some "exit" event(maybe enter hush) */ 605 #if defined(CONFIG_ARCH_ROCKCHIP) && \ 606 defined(CONFIG_AVB_VBMETA_PUBLIC_KEY_VALIDATE) 607 return 0; 608 #endif 609 610 #ifndef CONFIG_SANDBOX 611 if (!ctrlc_disabled && gd->have_console) { 612 if (tstc()) { 613 switch (getc()) { 614 case 0x03: /* ^C - Control C */ 615 ctrlc_was_pressed = 1; 616 return 1; 617 default: 618 break; 619 } 620 } 621 } 622 #endif 623 624 return 0; 625 } 626 /* Reads user's confirmation. 627 Returns 1 if user's input is "y", "Y", "yes" or "YES" 628 */ 629 int confirm_yesno(void) 630 { 631 int i; 632 char str_input[5]; 633 634 /* Flush input */ 635 while (tstc()) 636 getc(); 637 i = 0; 638 while (i < sizeof(str_input)) { 639 str_input[i] = getc(); 640 putc(str_input[i]); 641 if (str_input[i] == '\r') 642 break; 643 i++; 644 } 645 putc('\n'); 646 if (strncmp(str_input, "y\r", 2) == 0 || 647 strncmp(str_input, "Y\r", 2) == 0 || 648 strncmp(str_input, "yes\r", 4) == 0 || 649 strncmp(str_input, "YES\r", 4) == 0) 650 return 1; 651 return 0; 652 } 653 /* pass 1 to disable ctrlc() checking, 0 to enable. 654 * returns previous state 655 */ 656 int disable_ctrlc(int disable) 657 { 658 int prev = ctrlc_disabled; /* save previous state */ 659 660 ctrlc_disabled = disable; 661 return prev; 662 } 663 664 int had_ctrlc (void) 665 { 666 return ctrlc_was_pressed; 667 } 668 669 void clear_ctrlc(void) 670 { 671 ctrlc_was_pressed = 0; 672 } 673 674 /** U-Boot INIT FUNCTIONS *************************************************/ 675 676 struct stdio_dev *search_device(int flags, const char *name) 677 { 678 struct stdio_dev *dev; 679 680 dev = stdio_get_by_name(name); 681 #ifdef CONFIG_VIDCONSOLE_AS_LCD 682 if (!dev && !strcmp(name, "lcd")) 683 dev = stdio_get_by_name("vidconsole"); 684 #endif 685 686 if (dev && (dev->flags & flags)) 687 return dev; 688 689 return NULL; 690 } 691 692 int console_assign(int file, const char *devname) 693 { 694 int flag; 695 struct stdio_dev *dev; 696 697 /* Check for valid file */ 698 switch (file) { 699 case stdin: 700 flag = DEV_FLAGS_INPUT; 701 break; 702 case stdout: 703 case stderr: 704 flag = DEV_FLAGS_OUTPUT; 705 break; 706 default: 707 return -1; 708 } 709 710 /* Check for valid device name */ 711 712 dev = search_device(flag, devname); 713 714 if (dev) 715 return console_setfile(file, dev); 716 717 return -1; 718 } 719 720 static void console_update_silent(void) 721 { 722 #ifdef CONFIG_SILENT_CONSOLE 723 if (env_get("silent") != NULL) { 724 printf("U-Boot: enable slient console\n"); 725 gd->flags |= GD_FLG_SILENT; 726 } else { 727 gd->flags &= ~GD_FLG_SILENT; 728 } 729 #endif 730 } 731 732 int console_announce_r(void) 733 { 734 #if !CONFIG_IS_ENABLED(PRE_CONSOLE_BUFFER) 735 char buf[DISPLAY_OPTIONS_BANNER_LENGTH]; 736 737 display_options_get_banner(false, buf, sizeof(buf)); 738 739 console_puts_noserial(stdout, buf); 740 #endif 741 742 return 0; 743 } 744 745 /* Called before relocation - use serial functions */ 746 int console_init_f(void) 747 { 748 gd->have_console = 1; 749 750 console_update_silent(); 751 752 print_pre_console_buffer(PRE_CONSOLE_FLUSHPOINT1_SERIAL); 753 754 return 0; 755 } 756 757 void stdio_print_current_devices(void) 758 { 759 /* Print information */ 760 puts("In: "); 761 if (stdio_devices[stdin] == NULL) { 762 puts("No input devices available!\n"); 763 } else { 764 printf ("%s\n", stdio_devices[stdin]->name); 765 } 766 767 puts("Out: "); 768 if (stdio_devices[stdout] == NULL) { 769 puts("No output devices available!\n"); 770 } else { 771 printf ("%s\n", stdio_devices[stdout]->name); 772 } 773 774 puts("Err: "); 775 if (stdio_devices[stderr] == NULL) { 776 puts("No error devices available!\n"); 777 } else { 778 printf ("%s\n", stdio_devices[stderr]->name); 779 } 780 } 781 782 #if CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV) 783 /* Called after the relocation - use desired console functions */ 784 int console_init_r(void) 785 { 786 char *stdinname, *stdoutname, *stderrname; 787 struct stdio_dev *inputdev = NULL, *outputdev = NULL, *errdev = NULL; 788 #ifdef CONFIG_SYS_CONSOLE_ENV_OVERWRITE 789 int i; 790 #endif /* CONFIG_SYS_CONSOLE_ENV_OVERWRITE */ 791 #if CONFIG_IS_ENABLED(CONSOLE_MUX) 792 int iomux_err = 0; 793 #endif 794 795 /* set default handlers at first */ 796 gd->jt->getc = serial_getc; 797 gd->jt->tstc = serial_tstc; 798 gd->jt->putc = serial_putc; 799 gd->jt->puts = serial_puts; 800 gd->jt->printf = serial_printf; 801 802 /* stdin stdout and stderr are in environment */ 803 /* scan for it */ 804 stdinname = env_get("stdin"); 805 stdoutname = env_get("stdout"); 806 stderrname = env_get("stderr"); 807 808 if (OVERWRITE_CONSOLE == 0) { /* if not overwritten by config switch */ 809 inputdev = search_device(DEV_FLAGS_INPUT, stdinname); 810 outputdev = search_device(DEV_FLAGS_OUTPUT, stdoutname); 811 errdev = search_device(DEV_FLAGS_OUTPUT, stderrname); 812 #if CONFIG_IS_ENABLED(CONSOLE_MUX) 813 iomux_err = iomux_doenv(stdin, stdinname); 814 iomux_err += iomux_doenv(stdout, stdoutname); 815 iomux_err += iomux_doenv(stderr, stderrname); 816 if (!iomux_err) 817 /* Successful, so skip all the code below. */ 818 goto done; 819 #endif 820 } 821 /* if the devices are overwritten or not found, use default device */ 822 if (inputdev == NULL) { 823 inputdev = search_device(DEV_FLAGS_INPUT, "serial"); 824 } 825 if (outputdev == NULL) { 826 outputdev = search_device(DEV_FLAGS_OUTPUT, "serial"); 827 } 828 if (errdev == NULL) { 829 errdev = search_device(DEV_FLAGS_OUTPUT, "serial"); 830 } 831 /* Initializes output console first */ 832 if (outputdev != NULL) { 833 /* need to set a console if not done above. */ 834 console_doenv(stdout, outputdev); 835 } 836 if (errdev != NULL) { 837 /* need to set a console if not done above. */ 838 console_doenv(stderr, errdev); 839 } 840 if (inputdev != NULL) { 841 /* need to set a console if not done above. */ 842 console_doenv(stdin, inputdev); 843 } 844 845 #if CONFIG_IS_ENABLED(CONSOLE_MUX) 846 done: 847 #endif 848 849 #ifndef CONFIG_SYS_CONSOLE_INFO_QUIET 850 stdio_print_current_devices(); 851 #endif /* CONFIG_SYS_CONSOLE_INFO_QUIET */ 852 #ifdef CONFIG_VIDCONSOLE_AS_LCD 853 if (strstr(stdoutname, "lcd")) 854 printf("Warning: Please change 'lcd' to 'vidconsole' in stdout/stderr environment vars\n"); 855 #endif 856 857 #ifdef CONFIG_SYS_CONSOLE_ENV_OVERWRITE 858 /* set the environment variables (will overwrite previous env settings) */ 859 for (i = 0; i < 3; i++) { 860 env_set(stdio_names[i], stdio_devices[i]->name); 861 } 862 #endif /* CONFIG_SYS_CONSOLE_ENV_OVERWRITE */ 863 864 gd->flags |= GD_FLG_DEVINIT; /* device initialization completed */ 865 866 #if 0 867 /* If nothing usable installed, use only the initial console */ 868 if ((stdio_devices[stdin] == NULL) && (stdio_devices[stdout] == NULL)) 869 return 0; 870 #endif 871 print_pre_console_buffer(PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL); 872 return 0; 873 } 874 875 #else /* !CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV) */ 876 877 /* Called after the relocation - use desired console functions */ 878 int console_init_r(void) 879 { 880 struct stdio_dev *inputdev = NULL, *outputdev = NULL; 881 int i; 882 struct list_head *list = stdio_get_list(); 883 struct list_head *pos; 884 struct stdio_dev *dev; 885 886 console_update_silent(); 887 888 #ifdef CONFIG_SPLASH_SCREEN 889 /* 890 * suppress all output if splash screen is enabled and we have 891 * a bmp to display. We redirect the output from frame buffer 892 * console to serial console in this case or suppress it if 893 * "silent" mode was requested. 894 */ 895 if (env_get("splashimage") != NULL) { 896 if (!(gd->flags & GD_FLG_SILENT)) 897 outputdev = search_device (DEV_FLAGS_OUTPUT, "serial"); 898 } 899 #endif 900 901 /* Scan devices looking for input and output devices */ 902 list_for_each(pos, list) { 903 dev = list_entry(pos, struct stdio_dev, list); 904 905 if ((dev->flags & DEV_FLAGS_INPUT) && (inputdev == NULL)) { 906 inputdev = dev; 907 } 908 if ((dev->flags & DEV_FLAGS_OUTPUT) && (outputdev == NULL)) { 909 outputdev = dev; 910 } 911 if(inputdev && outputdev) 912 break; 913 } 914 915 /* Initializes output console first */ 916 if (outputdev != NULL) { 917 console_setfile(stdout, outputdev); 918 console_setfile(stderr, outputdev); 919 #if CONFIG_IS_ENABLED(CONSOLE_MUX) 920 console_devices[stdout][0] = outputdev; 921 console_devices[stderr][0] = outputdev; 922 #endif 923 } 924 925 /* Initializes input console */ 926 if (inputdev != NULL) { 927 console_setfile(stdin, inputdev); 928 #if CONFIG_IS_ENABLED(CONSOLE_MUX) 929 console_devices[stdin][0] = inputdev; 930 #endif 931 } 932 933 #ifndef CONFIG_SYS_CONSOLE_INFO_QUIET 934 stdio_print_current_devices(); 935 #endif /* CONFIG_SYS_CONSOLE_INFO_QUIET */ 936 937 /* Setting environment variables */ 938 for (i = 0; i < 3; i++) { 939 env_set(stdio_names[i], stdio_devices[i]->name); 940 } 941 942 gd->flags |= GD_FLG_DEVINIT; /* device initialization completed */ 943 944 #if 0 945 /* If nothing usable installed, use only the initial console */ 946 if ((stdio_devices[stdin] == NULL) && (stdio_devices[stdout] == NULL)) 947 return 0; 948 #endif 949 print_pre_console_buffer(PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL); 950 return 0; 951 } 952 953 #endif /* CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV) */ 954