1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * (C) Copyright 2000 4 * Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio (at) 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 if (!gd) 506 return; 507 #ifdef CONFIG_CONSOLE_RECORD 508 if ((gd->flags & GD_FLG_RECORD) && gd->console_out.start) 509 membuff_putbyte(&gd->console_out, c); 510 #endif 511 #ifdef CONFIG_SILENT_CONSOLE 512 if (gd->flags & GD_FLG_SILENT) 513 return; 514 #endif 515 516 #ifdef CONFIG_DISABLE_CONSOLE 517 if (gd->flags & GD_FLG_DISABLE_CONSOLE) 518 return; 519 #endif 520 521 if (!gd->have_console) 522 return pre_console_putc(c); 523 524 if (gd->flags & GD_FLG_DEVINIT) { 525 /* Send to the standard output */ 526 fputc(stdout, c); 527 } else { 528 /* Send directly to the handler */ 529 pre_console_putc(c); 530 serial_putc(c); 531 } 532 } 533 534 void puts(const char *s) 535 { 536 #ifdef CONFIG_DEBUG_UART 537 if (!gd || !(gd->flags & GD_FLG_SERIAL_READY)) { 538 while (*s) { 539 int ch = *s++; 540 541 printch(ch); 542 } 543 return; 544 } 545 #endif 546 if (!gd) 547 return; 548 #ifdef CONFIG_CONSOLE_RECORD 549 if ((gd->flags & GD_FLG_RECORD) && gd->console_out.start) 550 membuff_put(&gd->console_out, s, strlen(s)); 551 #endif 552 #ifdef CONFIG_SILENT_CONSOLE 553 if (gd->flags & GD_FLG_SILENT) 554 return; 555 #endif 556 557 #ifdef CONFIG_DISABLE_CONSOLE 558 if (gd->flags & GD_FLG_DISABLE_CONSOLE) 559 return; 560 #endif 561 562 if (!gd->have_console) 563 return pre_console_puts(s); 564 565 if (gd->flags & GD_FLG_DEVINIT) { 566 /* Send to the standard output */ 567 fputs(stdout, s); 568 } else { 569 /* Send directly to the handler */ 570 pre_console_puts(s); 571 serial_puts(s); 572 } 573 } 574 575 #ifdef CONFIG_CONSOLE_RECORD 576 int console_record_init(void) 577 { 578 int ret; 579 580 ret = membuff_new(&gd->console_out, CONFIG_CONSOLE_RECORD_OUT_SIZE); 581 if (ret) 582 return ret; 583 ret = membuff_new(&gd->console_in, CONFIG_CONSOLE_RECORD_IN_SIZE); 584 585 return ret; 586 } 587 588 void console_record_reset(void) 589 { 590 membuff_purge(&gd->console_out); 591 membuff_purge(&gd->console_in); 592 } 593 594 void console_record_reset_enable(void) 595 { 596 console_record_reset(); 597 gd->flags |= GD_FLG_RECORD; 598 } 599 #endif 600 601 /* test if ctrl-c was pressed */ 602 static int ctrlc_disabled = 0; /* see disable_ctrl() */ 603 static int ctrlc_was_pressed = 0; 604 int ctrlc(void) 605 { 606 #ifndef CONFIG_SANDBOX 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 #endif 619 620 return 0; 621 } 622 /* Reads user's confirmation. 623 Returns 1 if user's input is "y", "Y", "yes" or "YES" 624 */ 625 int confirm_yesno(void) 626 { 627 int i; 628 char str_input[5]; 629 630 /* Flush input */ 631 while (tstc()) 632 getc(); 633 i = 0; 634 while (i < sizeof(str_input)) { 635 str_input[i] = getc(); 636 putc(str_input[i]); 637 if (str_input[i] == '\r') 638 break; 639 i++; 640 } 641 putc('\n'); 642 if (strncmp(str_input, "y\r", 2) == 0 || 643 strncmp(str_input, "Y\r", 2) == 0 || 644 strncmp(str_input, "yes\r", 4) == 0 || 645 strncmp(str_input, "YES\r", 4) == 0) 646 return 1; 647 return 0; 648 } 649 /* pass 1 to disable ctrlc() checking, 0 to enable. 650 * returns previous state 651 */ 652 int disable_ctrlc(int disable) 653 { 654 int prev = ctrlc_disabled; /* save previous state */ 655 656 ctrlc_disabled = disable; 657 return prev; 658 } 659 660 int had_ctrlc (void) 661 { 662 return ctrlc_was_pressed; 663 } 664 665 void clear_ctrlc(void) 666 { 667 ctrlc_was_pressed = 0; 668 } 669 670 /** U-Boot INIT FUNCTIONS *************************************************/ 671 672 struct stdio_dev *search_device(int flags, const char *name) 673 { 674 struct stdio_dev *dev; 675 676 dev = stdio_get_by_name(name); 677 #ifdef CONFIG_VIDCONSOLE_AS_LCD 678 if (!dev && !strcmp(name, "lcd")) 679 dev = stdio_get_by_name("vidconsole"); 680 #endif 681 682 if (dev && (dev->flags & flags)) 683 return dev; 684 685 return NULL; 686 } 687 688 int console_assign(int file, const char *devname) 689 { 690 int flag; 691 struct stdio_dev *dev; 692 693 /* Check for valid file */ 694 switch (file) { 695 case stdin: 696 flag = DEV_FLAGS_INPUT; 697 break; 698 case stdout: 699 case stderr: 700 flag = DEV_FLAGS_OUTPUT; 701 break; 702 default: 703 return -1; 704 } 705 706 /* Check for valid device name */ 707 708 dev = search_device(flag, devname); 709 710 if (dev) 711 return console_setfile(file, dev); 712 713 return -1; 714 } 715 716 static void console_update_silent(void) 717 { 718 #ifdef CONFIG_SILENT_CONSOLE 719 if (env_get("silent") != NULL) 720 gd->flags |= GD_FLG_SILENT; 721 else 722 gd->flags &= ~GD_FLG_SILENT; 723 #endif 724 } 725 726 int console_announce_r(void) 727 { 728 #if !CONFIG_IS_ENABLED(PRE_CONSOLE_BUFFER) 729 char buf[DISPLAY_OPTIONS_BANNER_LENGTH]; 730 731 display_options_get_banner(false, buf, sizeof(buf)); 732 733 console_puts_noserial(stdout, buf); 734 #endif 735 736 return 0; 737 } 738 739 /* Called before relocation - use serial functions */ 740 int console_init_f(void) 741 { 742 gd->have_console = 1; 743 744 console_update_silent(); 745 746 print_pre_console_buffer(PRE_CONSOLE_FLUSHPOINT1_SERIAL); 747 748 return 0; 749 } 750 751 void stdio_print_current_devices(void) 752 { 753 /* Print information */ 754 puts("In: "); 755 if (stdio_devices[stdin] == NULL) { 756 puts("No input devices available!\n"); 757 } else { 758 printf ("%s\n", stdio_devices[stdin]->name); 759 } 760 761 puts("Out: "); 762 if (stdio_devices[stdout] == NULL) { 763 puts("No output devices available!\n"); 764 } else { 765 printf ("%s\n", stdio_devices[stdout]->name); 766 } 767 768 puts("Err: "); 769 if (stdio_devices[stderr] == NULL) { 770 puts("No error devices available!\n"); 771 } else { 772 printf ("%s\n", stdio_devices[stderr]->name); 773 } 774 } 775 776 #if CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV) 777 /* Called after the relocation - use desired console functions */ 778 int console_init_r(void) 779 { 780 char *stdinname, *stdoutname, *stderrname; 781 struct stdio_dev *inputdev = NULL, *outputdev = NULL, *errdev = NULL; 782 #ifdef CONFIG_SYS_CONSOLE_ENV_OVERWRITE 783 int i; 784 #endif /* CONFIG_SYS_CONSOLE_ENV_OVERWRITE */ 785 #if CONFIG_IS_ENABLED(CONSOLE_MUX) 786 int iomux_err = 0; 787 #endif 788 789 /* set default handlers at first */ 790 gd->jt->getc = serial_getc; 791 gd->jt->tstc = serial_tstc; 792 gd->jt->putc = serial_putc; 793 gd->jt->puts = serial_puts; 794 gd->jt->printf = serial_printf; 795 796 /* stdin stdout and stderr are in environment */ 797 /* scan for it */ 798 stdinname = env_get("stdin"); 799 stdoutname = env_get("stdout"); 800 stderrname = env_get("stderr"); 801 802 if (OVERWRITE_CONSOLE == 0) { /* if not overwritten by config switch */ 803 inputdev = search_device(DEV_FLAGS_INPUT, stdinname); 804 outputdev = search_device(DEV_FLAGS_OUTPUT, stdoutname); 805 errdev = search_device(DEV_FLAGS_OUTPUT, stderrname); 806 #if CONFIG_IS_ENABLED(CONSOLE_MUX) 807 iomux_err = iomux_doenv(stdin, stdinname); 808 iomux_err += iomux_doenv(stdout, stdoutname); 809 iomux_err += iomux_doenv(stderr, stderrname); 810 if (!iomux_err) 811 /* Successful, so skip all the code below. */ 812 goto done; 813 #endif 814 } 815 /* if the devices are overwritten or not found, use default device */ 816 if (inputdev == NULL) { 817 inputdev = search_device(DEV_FLAGS_INPUT, "serial"); 818 } 819 if (outputdev == NULL) { 820 outputdev = search_device(DEV_FLAGS_OUTPUT, "serial"); 821 } 822 if (errdev == NULL) { 823 errdev = search_device(DEV_FLAGS_OUTPUT, "serial"); 824 } 825 /* Initializes output console first */ 826 if (outputdev != NULL) { 827 /* need to set a console if not done above. */ 828 console_doenv(stdout, outputdev); 829 } 830 if (errdev != NULL) { 831 /* need to set a console if not done above. */ 832 console_doenv(stderr, errdev); 833 } 834 if (inputdev != NULL) { 835 /* need to set a console if not done above. */ 836 console_doenv(stdin, inputdev); 837 } 838 839 #if CONFIG_IS_ENABLED(CONSOLE_MUX) 840 done: 841 #endif 842 843 #ifndef CONFIG_SYS_CONSOLE_INFO_QUIET 844 stdio_print_current_devices(); 845 #endif /* CONFIG_SYS_CONSOLE_INFO_QUIET */ 846 #ifdef CONFIG_VIDCONSOLE_AS_LCD 847 if (strstr(stdoutname, "lcd")) 848 printf("Warning: Please change 'lcd' to 'vidconsole' in stdout/stderr environment vars\n"); 849 #endif 850 851 #ifdef CONFIG_SYS_CONSOLE_ENV_OVERWRITE 852 /* set the environment variables (will overwrite previous env settings) */ 853 for (i = 0; i < MAX_FILES; i++) { 854 env_set(stdio_names[i], stdio_devices[i]->name); 855 } 856 #endif /* CONFIG_SYS_CONSOLE_ENV_OVERWRITE */ 857 858 gd->flags |= GD_FLG_DEVINIT; /* device initialization completed */ 859 860 #if 0 861 /* If nothing usable installed, use only the initial console */ 862 if ((stdio_devices[stdin] == NULL) && (stdio_devices[stdout] == NULL)) 863 return 0; 864 #endif 865 print_pre_console_buffer(PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL); 866 return 0; 867 } 868 869 #else /* !CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV) */ 870 871 /* Called after the relocation - use desired console functions */ 872 int console_init_r(void) 873 { 874 struct stdio_dev *inputdev = NULL, *outputdev = NULL; 875 int i; 876 struct list_head *list = stdio_get_list(); 877 struct list_head *pos; 878 struct stdio_dev *dev; 879 880 console_update_silent(); 881 882 #ifdef CONFIG_SPLASH_SCREEN 883 /* 884 * suppress all output if splash screen is enabled and we have 885 * a bmp to display. We redirect the output from frame buffer 886 * console to serial console in this case or suppress it if 887 * "silent" mode was requested. 888 */ 889 if (env_get("splashimage") != NULL) { 890 if (!(gd->flags & GD_FLG_SILENT)) 891 outputdev = search_device (DEV_FLAGS_OUTPUT, "serial"); 892 } 893 #endif 894 895 /* Scan devices looking for input and output devices */ 896 list_for_each(pos, list) { 897 dev = list_entry(pos, struct stdio_dev, list); 898 899 if ((dev->flags & DEV_FLAGS_INPUT) && (inputdev == NULL)) { 900 inputdev = dev; 901 } 902 if ((dev->flags & DEV_FLAGS_OUTPUT) && (outputdev == NULL)) { 903 outputdev = dev; 904 } 905 if(inputdev && outputdev) 906 break; 907 } 908 909 /* Initializes output console first */ 910 if (outputdev != NULL) { 911 console_setfile(stdout, outputdev); 912 console_setfile(stderr, outputdev); 913 #if CONFIG_IS_ENABLED(CONSOLE_MUX) 914 console_devices[stdout][0] = outputdev; 915 console_devices[stderr][0] = outputdev; 916 #endif 917 } 918 919 /* Initializes input console */ 920 if (inputdev != NULL) { 921 console_setfile(stdin, inputdev); 922 #if CONFIG_IS_ENABLED(CONSOLE_MUX) 923 console_devices[stdin][0] = inputdev; 924 #endif 925 } 926 927 #ifndef CONFIG_SYS_CONSOLE_INFO_QUIET 928 stdio_print_current_devices(); 929 #endif /* CONFIG_SYS_CONSOLE_INFO_QUIET */ 930 931 /* Setting environment variables */ 932 for (i = 0; i < MAX_FILES; i++) { 933 env_set(stdio_names[i], stdio_devices[i]->name); 934 } 935 936 gd->flags |= GD_FLG_DEVINIT; /* device initialization completed */ 937 938 #if 0 939 /* If nothing usable installed, use only the initial console */ 940 if ((stdio_devices[stdin] == NULL) && (stdio_devices[stdout] == NULL)) 941 return 0; 942 #endif 943 print_pre_console_buffer(PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL); 944 return 0; 945 } 946 947 #endif /* CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV) */ 948
