1 // SPDX-License-Identifier: GPL-2.0+
9 #include <debug_uart.h>
10 #include <display_options.h>
19 #include <stdio_dev.h>
21 #include <env_internal.h>
23 #include <asm/global_data.h>
24 #include <linux/delay.h>
26 DECLARE_GLOBAL_DATA_PTR;
28 static int on_console(const char *name, const char *value, enum env_op op,
33 /* Check for console redirection */
34 if (strcmp(name, "stdin") == 0)
36 else if (strcmp(name, "stdout") == 0)
38 else if (strcmp(name, "stderr") == 0)
41 /* if not actually setting a console variable, we don't care */
42 if (console == -1 || (gd->flags & GD_FLG_DEVINIT) == 0)
47 case env_op_overwrite:
49 if (CONFIG_IS_ENABLED(CONSOLE_MUX)) {
50 if (iomux_doenv(console, value))
53 /* Try assigning specified device */
54 if (console_assign(console, value) < 0)
61 if ((flags & H_FORCE) == 0)
62 printf("Can't delete \"%s\"\n", name);
69 U_BOOT_ENV_CALLBACK(console, on_console);
71 #ifdef CONFIG_SILENT_CONSOLE
72 static int on_silent(const char *name, const char *value, enum env_op op,
75 if (!CONFIG_IS_ENABLED(SILENT_CONSOLE_UPDATE_ON_SET))
76 if (flags & H_INTERACTIVE)
79 if (!CONFIG_IS_ENABLED(SILENT_CONSOLE_UPDATE_ON_RELOC))
80 if ((flags & H_INTERACTIVE) == 0)
84 gd->flags |= GD_FLG_SILENT;
86 gd->flags &= ~GD_FLG_SILENT;
90 U_BOOT_ENV_CALLBACK(silent, on_silent);
93 #ifdef CONFIG_CONSOLE_RECORD
94 /* helper function: access to gd->console_out and gd->console_in */
95 static void console_record_putc(const char c)
97 if (!(gd->flags & GD_FLG_RECORD))
99 if (gd->console_out.start &&
100 !membuff_putbyte((struct membuff *)&gd->console_out, c))
101 gd->flags |= GD_FLG_RECORD_OVF;
104 static void console_record_puts(const char *s)
106 if (!(gd->flags & GD_FLG_RECORD))
108 if (gd->console_out.start) {
111 if (membuff_put((struct membuff *)&gd->console_out, s, len) !=
113 gd->flags |= GD_FLG_RECORD_OVF;
117 static int console_record_getc(void)
119 if (!(gd->flags & GD_FLG_RECORD))
121 if (!gd->console_in.start)
124 return membuff_getbyte((struct membuff *)&gd->console_in);
127 static int console_record_tstc(void)
129 if (!(gd->flags & GD_FLG_RECORD))
131 if (gd->console_in.start) {
132 if (membuff_peekbyte((struct membuff *)&gd->console_in) != -1)
138 static void console_record_putc(char c)
142 static void console_record_puts(const char *s)
146 static int console_record_getc(void)
151 static int console_record_tstc(void)
157 #if CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV)
159 * if overwrite_console returns 1, the stdin, stderr and stdout
160 * are switched to the serial port, else the settings in the
161 * environment are used
163 #ifdef CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE
164 extern int overwrite_console(void);
165 #define OVERWRITE_CONSOLE overwrite_console()
167 #define OVERWRITE_CONSOLE 0
168 #endif /* CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE */
170 #endif /* CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV) */
172 static int console_setfile(int file, struct stdio_dev * dev)
183 error = console_start(file, dev);
187 /* Assign the new device (leaving the existing one started) */
188 stdio_devices[file] = dev;
191 * Update monitor functions
192 * (to use the console stuff by other applications)
196 gd->jt->getc = getchar;
202 STDIO_DEV_ASSIGN_FLUSH(gd->jt, flush);
203 gd->jt->printf = printf;
208 default: /* Invalid file ID */
215 * console_dev_is_serial() - Check if a stdio device is a serial device
217 * @sdev: Device to check
218 * Return: true if this device is in the serial uclass (or for pre-driver-model,
219 * whether it is called "serial".
221 static bool console_dev_is_serial(struct stdio_dev *sdev)
225 if (IS_ENABLED(CONFIG_DM_SERIAL) && (sdev->flags & DEV_FLAGS_DM)) {
226 struct udevice *dev = sdev->priv;
228 is_serial = device_get_uclass_id(dev) == UCLASS_SERIAL;
230 is_serial = !strcmp(sdev->name, "serial");
236 #if CONFIG_IS_ENABLED(CONSOLE_MUX)
237 /** Console I/O multiplexing *******************************************/
239 /* tstcdev: save the last stdio device with pending characters, with tstc != 0 */
240 static struct stdio_dev *tstcdev;
241 struct stdio_dev **console_devices[MAX_FILES];
242 int cd_count[MAX_FILES];
244 static void console_devices_set(int file, struct stdio_dev *dev)
246 console_devices[file][0] = dev;
251 * console_needs_start_stop() - check if we need to start or stop the STDIO device
253 * @sdev: STDIO device in question
255 * This function checks if we need to start or stop the stdio device used for
256 * a console. For IOMUX case it simply enforces one time start and one time
257 * stop of the device independently of how many STDIO files are using it. In
258 * other words, we start console once before first STDIO device wants it and
259 * stop after the last is gone.
261 static bool console_needs_start_stop(int file, struct stdio_dev *sdev)
265 for (i = 0; i < ARRAY_SIZE(cd_count); i++) {
269 if (iomux_match_device(console_devices[i], cd_count[i], sdev) >= 0)
276 * This depends on tstc() always being called before getchar().
277 * This is guaranteed to be true because this routine is called
278 * only from fgetc() which assures it.
279 * No attempt is made to demultiplex multiple input sources.
281 static int console_getc(int file)
285 /* This is never called with testcdev == NULL */
286 ret = tstcdev->getc(tstcdev);
291 /* Upper layer may have already called tstc(): check the saved result */
292 static bool console_has_tstc(void)
297 static int console_tstc(int file)
300 struct stdio_dev *dev;
303 prev = disable_ctrlc(1);
304 for_each_console_dev(i, file, dev) {
305 if (dev->tstc != NULL) {
306 ret = dev->tstc(dev);
319 static void console_putc(int file, const char c)
322 struct stdio_dev *dev;
324 for_each_console_dev(i, file, dev) {
325 if (dev->putc != NULL)
331 * console_puts_select() - Output a string to all console devices
333 * @file: File number to output to (e,g, stdout, see stdio.h)
334 * @serial_only: true to output only to serial, false to output to everything
336 * @s: String to output
338 static void console_puts_select(int file, bool serial_only, const char *s)
341 struct stdio_dev *dev;
343 for_each_console_dev(i, file, dev) {
344 bool is_serial = console_dev_is_serial(dev);
346 if (dev->puts && serial_only == is_serial)
351 void console_puts_select_stderr(bool serial_only, const char *s)
353 if (gd->flags & GD_FLG_DEVINIT)
354 console_puts_select(stderr, serial_only, s);
357 static void console_puts(int file, const char *s)
360 struct stdio_dev *dev;
362 for_each_console_dev(i, file, dev) {
363 if (dev->puts != NULL)
368 #ifdef CONFIG_CONSOLE_FLUSH_SUPPORT
369 static void console_flush(int file)
372 struct stdio_dev *dev;
374 for_each_console_dev(i, file, dev) {
375 if (dev->flush != NULL)
381 #if CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV)
382 static inline void console_doenv(int file, struct stdio_dev *dev)
384 iomux_doenv(file, dev->name);
389 static void console_devices_set(int file, struct stdio_dev *dev)
393 static inline bool console_needs_start_stop(int file, struct stdio_dev *sdev)
398 static inline int console_getc(int file)
400 return stdio_devices[file]->getc(stdio_devices[file]);
403 static bool console_has_tstc(void)
408 static inline int console_tstc(int file)
410 return stdio_devices[file]->tstc(stdio_devices[file]);
413 static inline void console_putc(int file, const char c)
415 stdio_devices[file]->putc(stdio_devices[file], c);
418 void console_puts_select(int file, bool serial_only, const char *s)
420 if ((gd->flags & GD_FLG_DEVINIT) &&
421 serial_only == console_dev_is_serial(stdio_devices[file]))
422 stdio_devices[file]->puts(stdio_devices[file], s);
425 static inline void console_puts(int file, const char *s)
427 stdio_devices[file]->puts(stdio_devices[file], s);
430 #ifdef CONFIG_CONSOLE_FLUSH_SUPPORT
431 static inline void console_flush(int file)
433 if (stdio_devices[file]->flush)
434 stdio_devices[file]->flush(stdio_devices[file]);
438 #if CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV)
439 static inline void console_doenv(int file, struct stdio_dev *dev)
441 console_setfile(file, dev);
444 #endif /* CONIFIG_IS_ENABLED(CONSOLE_MUX) */
446 static void __maybe_unused console_setfile_and_devices(int file, struct stdio_dev *dev)
448 console_setfile(file, dev);
449 console_devices_set(file, dev);
452 int console_start(int file, struct stdio_dev *sdev)
456 if (!console_needs_start_stop(file, sdev))
459 /* Start new device */
461 error = sdev->start(sdev);
462 /* If it's not started don't use it */
469 void console_stop(int file, struct stdio_dev *sdev)
471 if (!console_needs_start_stop(file, sdev))
478 /** U-Boot INITIAL CONSOLE-NOT COMPATIBLE FUNCTIONS *************************/
480 int serial_printf(const char *fmt, ...)
484 char printbuffer[CONFIG_SYS_PBSIZE];
488 /* For this to work, printbuffer must be larger than
489 * anything we ever want to print.
491 i = vscnprintf(printbuffer, sizeof(printbuffer), fmt, args);
494 serial_puts(printbuffer);
500 if ((unsigned int)file < MAX_FILES) {
502 * Effectively poll for input wherever it may be available.
506 if (CONFIG_IS_ENABLED(CONSOLE_MUX)) {
508 * Upper layer may have already called tstc() so
509 * check for that first.
511 if (console_has_tstc())
512 return console_getc(file);
515 if (console_tstc(file))
516 return console_getc(file);
520 * If the watchdog must be rate-limited then it should
521 * already be handled in board-specific code.
523 if (IS_ENABLED(CONFIG_WATCHDOG))
533 if ((unsigned int)file < MAX_FILES)
534 return console_tstc(file);
539 void fputc(int file, const char c)
541 if ((unsigned int)file < MAX_FILES)
542 console_putc(file, c);
545 void fputs(int file, const char *s)
547 if ((unsigned int)file < MAX_FILES)
548 console_puts(file, s);
551 #ifdef CONFIG_CONSOLE_FLUSH_SUPPORT
552 void fflush(int file)
554 if ((unsigned int)file < MAX_FILES)
559 int fprintf(int file, const char *fmt, ...)
563 char printbuffer[CONFIG_SYS_PBSIZE];
567 /* For this to work, printbuffer must be larger than
568 * anything we ever want to print.
570 i = vscnprintf(printbuffer, sizeof(printbuffer), fmt, args);
573 /* Send to desired file */
574 fputs(file, printbuffer);
578 /** U-Boot INITIAL CONSOLE-COMPATIBLE FUNCTION *****************************/
584 if (IS_ENABLED(CONFIG_DISABLE_CONSOLE) && (gd->flags & GD_FLG_DISABLE_CONSOLE))
587 if (!gd->have_console)
590 ch = console_record_getc();
594 if (gd->flags & GD_FLG_DEVINIT) {
595 /* Get from the standard input */
599 /* Send directly to the handler */
600 return serial_getc();
605 if (IS_ENABLED(CONFIG_DISABLE_CONSOLE) && (gd->flags & GD_FLG_DISABLE_CONSOLE))
608 if (!gd->have_console)
611 if (console_record_tstc())
614 if (gd->flags & GD_FLG_DEVINIT) {
615 /* Test the standard input */
619 /* Send directly to the handler */
620 return serial_tstc();
623 #define PRE_CONSOLE_FLUSHPOINT1_SERIAL 0
624 #define PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL 1
626 #if CONFIG_IS_ENABLED(PRE_CONSOLE_BUFFER)
627 #define CIRC_BUF_IDX(idx) ((idx) % (unsigned long)CONFIG_VAL(PRE_CON_BUF_SZ))
629 static void pre_console_putc(const char c)
633 if (gd->precon_buf_idx < 0)
636 buffer = map_sysmem(CONFIG_VAL(PRE_CON_BUF_ADDR), CONFIG_VAL(PRE_CON_BUF_SZ));
638 buffer[CIRC_BUF_IDX(gd->precon_buf_idx++)] = c;
640 unmap_sysmem(buffer);
643 static void pre_console_puts(const char *s)
645 if (gd->precon_buf_idx < 0)
649 pre_console_putc(*s++);
652 static void print_pre_console_buffer(int flushpoint)
654 long in = 0, out = 0;
655 char buf_out[CONFIG_VAL(PRE_CON_BUF_SZ) + 1];
658 if (IS_ENABLED(CONFIG_SILENT_CONSOLE) && (gd->flags & GD_FLG_SILENT))
661 buf_in = map_sysmem(CONFIG_VAL(PRE_CON_BUF_ADDR), CONFIG_VAL(PRE_CON_BUF_SZ));
662 if (gd->precon_buf_idx > CONFIG_VAL(PRE_CON_BUF_SZ))
663 in = gd->precon_buf_idx - CONFIG_VAL(PRE_CON_BUF_SZ);
665 while (in < gd->precon_buf_idx)
666 buf_out[out++] = buf_in[CIRC_BUF_IDX(in++)];
667 unmap_sysmem(buf_in);
671 gd->precon_buf_idx = -1;
672 switch (flushpoint) {
673 case PRE_CONSOLE_FLUSHPOINT1_SERIAL:
676 case PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL:
677 console_puts_select(stdout, false, buf_out);
680 gd->precon_buf_idx = in;
683 static inline void pre_console_putc(const char c) {}
684 static inline void pre_console_puts(const char *s) {}
685 static inline void print_pre_console_buffer(int flushpoint) {}
688 void putc(const char c)
693 console_record_putc(c);
695 /* sandbox can send characters to stdout before it has a console */
696 if (IS_ENABLED(CONFIG_SANDBOX) && !(gd->flags & GD_FLG_SERIAL_READY)) {
701 /* if we don't have a console yet, use the debug UART */
702 if (IS_ENABLED(CONFIG_DEBUG_UART) && !(gd->flags & GD_FLG_SERIAL_READY)) {
707 if (IS_ENABLED(CONFIG_SILENT_CONSOLE) && (gd->flags & GD_FLG_SILENT)) {
708 if (!(gd->flags & GD_FLG_DEVINIT))
713 if (IS_ENABLED(CONFIG_DISABLE_CONSOLE) && (gd->flags & GD_FLG_DISABLE_CONSOLE))
716 if (!gd->have_console)
717 return pre_console_putc(c);
719 if (gd->flags & GD_FLG_DEVINIT) {
720 /* Send to the standard output */
723 /* Send directly to the handler */
729 void puts(const char *s)
734 console_record_puts(s);
736 /* sandbox can send characters to stdout before it has a console */
737 if (IS_ENABLED(CONFIG_SANDBOX) && !(gd->flags & GD_FLG_SERIAL_READY)) {
742 if (IS_ENABLED(CONFIG_DEBUG_UART) && !(gd->flags & GD_FLG_SERIAL_READY)) {
751 if (IS_ENABLED(CONFIG_SILENT_CONSOLE) && (gd->flags & GD_FLG_SILENT)) {
752 if (!(gd->flags & GD_FLG_DEVINIT))
757 if (IS_ENABLED(CONFIG_DISABLE_CONSOLE) && (gd->flags & GD_FLG_DISABLE_CONSOLE))
760 if (!gd->have_console)
761 return pre_console_puts(s);
763 if (gd->flags & GD_FLG_DEVINIT) {
764 /* Send to the standard output */
767 /* Send directly to the handler */
773 #ifdef CONFIG_CONSOLE_FLUSH_SUPPORT
779 /* sandbox can send characters to stdout before it has a console */
780 if (IS_ENABLED(CONFIG_SANDBOX) && !(gd->flags & GD_FLG_SERIAL_READY)) {
785 if (IS_ENABLED(CONFIG_DEBUG_UART) && !(gd->flags & GD_FLG_SERIAL_READY))
788 if (IS_ENABLED(CONFIG_SILENT_CONSOLE) && (gd->flags & GD_FLG_SILENT))
791 if (IS_ENABLED(CONFIG_DISABLE_CONSOLE) && (gd->flags & GD_FLG_DISABLE_CONSOLE))
794 if (!gd->have_console)
797 if (gd->flags & GD_FLG_DEVINIT) {
798 /* Send to the standard output */
801 /* Send directly to the handler */
807 #ifdef CONFIG_CONSOLE_RECORD
808 int console_record_init(void)
812 ret = membuff_new((struct membuff *)&gd->console_out,
813 gd->flags & GD_FLG_RELOC ?
814 CONFIG_CONSOLE_RECORD_OUT_SIZE :
815 CONFIG_CONSOLE_RECORD_OUT_SIZE_F);
818 ret = membuff_new((struct membuff *)&gd->console_in,
819 CONFIG_CONSOLE_RECORD_IN_SIZE);
824 void console_record_reset(void)
826 membuff_purge((struct membuff *)&gd->console_out);
827 membuff_purge((struct membuff *)&gd->console_in);
828 gd->flags &= ~GD_FLG_RECORD_OVF;
831 int console_record_reset_enable(void)
833 console_record_reset();
834 gd->flags |= GD_FLG_RECORD;
839 int console_record_readline(char *str, int maxlen)
841 if (gd->flags & GD_FLG_RECORD_OVF)
844 return membuff_readline((struct membuff *)&gd->console_out, str,
848 int console_record_avail(void)
850 return membuff_avail((struct membuff *)&gd->console_out);
853 int console_in_puts(const char *str)
855 return membuff_put((struct membuff *)&gd->console_in, str, strlen(str));
860 /* test if ctrl-c was pressed */
861 static int ctrlc_disabled = 0; /* see disable_ctrl() */
862 static int ctrlc_was_pressed = 0;
865 if (!ctrlc_disabled && gd->have_console) {
868 case 0x03: /* ^C - Control C */
869 ctrlc_was_pressed = 1;
879 /* Reads user's confirmation.
880 Returns 1 if user's input is "y", "Y", "yes" or "YES"
882 int confirm_yesno(void)
891 while (i < sizeof(str_input)) {
892 str_input[i] = getchar();
894 if (str_input[i] == '\r')
899 if (strncmp(str_input, "y\r", 2) == 0 ||
900 strncmp(str_input, "Y\r", 2) == 0 ||
901 strncmp(str_input, "yes\r", 4) == 0 ||
902 strncmp(str_input, "YES\r", 4) == 0)
906 /* pass 1 to disable ctrlc() checking, 0 to enable.
907 * returns previous state
909 int disable_ctrlc(int disable)
911 int prev = ctrlc_disabled; /* save previous state */
913 ctrlc_disabled = disable;
919 return ctrlc_was_pressed;
922 void clear_ctrlc(void)
924 ctrlc_was_pressed = 0;
927 /** U-Boot INIT FUNCTIONS *************************************************/
929 struct stdio_dev *console_search_dev(int flags, const char *name)
931 struct stdio_dev *dev;
933 dev = stdio_get_by_name(name);
934 #ifdef CONFIG_VIDCONSOLE_AS_LCD
935 if (!dev && !strcmp(name, CONFIG_VIDCONSOLE_AS_NAME))
936 dev = stdio_get_by_name("vidconsole");
939 if (dev && (dev->flags & flags))
945 int console_assign(int file, const char *devname)
948 struct stdio_dev *dev;
950 /* Check for valid file */
951 flag = stdio_file_to_flags(file);
955 /* Check for valid device name */
957 dev = console_search_dev(flag, devname);
960 return console_setfile(file, dev);
965 /* return true if the 'silent' flag is removed */
966 static bool console_update_silent(void)
968 unsigned long flags = gd->flags;
970 if (!IS_ENABLED(CONFIG_SILENT_CONSOLE))
973 if (IS_ENABLED(CONFIG_SILENT_CONSOLE_UNTIL_ENV) && !(gd->flags & GD_FLG_ENV_READY)) {
974 gd->flags |= GD_FLG_SILENT;
978 if (env_get("silent")) {
979 gd->flags |= GD_FLG_SILENT;
983 gd->flags &= ~GD_FLG_SILENT;
985 return !!(flags & GD_FLG_SILENT);
988 int console_announce_r(void)
990 #if !CONFIG_IS_ENABLED(PRE_CONSOLE_BUFFER)
991 char buf[DISPLAY_OPTIONS_BANNER_LENGTH];
993 display_options_get_banner(false, buf, sizeof(buf));
995 console_puts_select(stdout, false, buf);
1001 /* Called before relocation - use serial functions */
1002 int console_init_f(void)
1004 gd->have_console = 1;
1006 console_update_silent();
1008 print_pre_console_buffer(PRE_CONSOLE_FLUSHPOINT1_SERIAL);
1013 static void stdio_print_current_devices(void)
1015 char *stdinname, *stdoutname, *stderrname;
1017 if (CONFIG_IS_ENABLED(CONSOLE_MUX) &&
1018 CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV)) {
1019 /* stdin stdout and stderr are in environment */
1020 stdinname = env_get("stdin");
1021 stdoutname = env_get("stdout");
1022 stderrname = env_get("stderr");
1024 stdinname = stdinname ? : "No input devices available!";
1025 stdoutname = stdoutname ? : "No output devices available!";
1026 stderrname = stderrname ? : "No error devices available!";
1028 stdinname = stdio_devices[stdin] ?
1029 stdio_devices[stdin]->name :
1030 "No input devices available!";
1031 stdoutname = stdio_devices[stdout] ?
1032 stdio_devices[stdout]->name :
1033 "No output devices available!";
1034 stderrname = stdio_devices[stderr] ?
1035 stdio_devices[stderr]->name :
1036 "No error devices available!";
1039 /* Print information */
1041 printf("%s\n", stdinname);
1044 printf("%s\n", stdoutname);
1047 printf("%s\n", stderrname);
1050 #if CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV)
1051 /* Called after the relocation - use desired console functions */
1052 int console_init_r(void)
1054 char *stdinname, *stdoutname, *stderrname;
1055 struct stdio_dev *inputdev = NULL, *outputdev = NULL, *errdev = NULL;
1060 /* update silent for env loaded from flash (initr_env) */
1061 if (console_update_silent())
1062 flushpoint = PRE_CONSOLE_FLUSHPOINT1_SERIAL;
1064 flushpoint = PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL;
1066 /* set default handlers at first */
1067 gd->jt->getc = serial_getc;
1068 gd->jt->tstc = serial_tstc;
1069 gd->jt->putc = serial_putc;
1070 gd->jt->puts = serial_puts;
1071 gd->jt->printf = serial_printf;
1073 /* stdin stdout and stderr are in environment */
1075 stdinname = env_get("stdin");
1076 stdoutname = env_get("stdout");
1077 stderrname = env_get("stderr");
1079 if (OVERWRITE_CONSOLE == 0) { /* if not overwritten by config switch */
1080 inputdev = console_search_dev(DEV_FLAGS_INPUT, stdinname);
1081 outputdev = console_search_dev(DEV_FLAGS_OUTPUT, stdoutname);
1082 errdev = console_search_dev(DEV_FLAGS_OUTPUT, stderrname);
1083 if (CONFIG_IS_ENABLED(CONSOLE_MUX)) {
1084 iomux_err = iomux_doenv(stdin, stdinname);
1085 iomux_err += iomux_doenv(stdout, stdoutname);
1086 iomux_err += iomux_doenv(stderr, stderrname);
1088 /* Successful, so skip all the code below. */
1092 /* if the devices are overwritten or not found, use default device */
1093 if (inputdev == NULL) {
1094 inputdev = console_search_dev(DEV_FLAGS_INPUT, "serial");
1096 if (outputdev == NULL) {
1097 outputdev = console_search_dev(DEV_FLAGS_OUTPUT, "serial");
1099 if (errdev == NULL) {
1100 errdev = console_search_dev(DEV_FLAGS_OUTPUT, "serial");
1102 /* Initializes output console first */
1103 if (outputdev != NULL) {
1104 /* need to set a console if not done above. */
1105 console_doenv(stdout, outputdev);
1107 if (errdev != NULL) {
1108 /* need to set a console if not done above. */
1109 console_doenv(stderr, errdev);
1111 if (inputdev != NULL) {
1112 /* need to set a console if not done above. */
1113 console_doenv(stdin, inputdev);
1118 if (!IS_ENABLED(CONFIG_SYS_CONSOLE_INFO_QUIET))
1119 stdio_print_current_devices();
1121 #ifdef CONFIG_VIDCONSOLE_AS_LCD
1122 if (strstr(stdoutname, CONFIG_VIDCONSOLE_AS_NAME))
1123 printf("Warning: Please change '%s' to 'vidconsole' in stdout/stderr environment vars\n",
1124 CONFIG_VIDCONSOLE_AS_NAME);
1127 if (IS_ENABLED(CONFIG_SYS_CONSOLE_ENV_OVERWRITE)) {
1128 /* set the environment variables (will overwrite previous env settings) */
1129 for (i = 0; i < MAX_FILES; i++)
1130 env_set(stdio_names[i], stdio_devices[i]->name);
1133 gd->flags |= GD_FLG_DEVINIT; /* device initialization completed */
1135 print_pre_console_buffer(flushpoint);
1139 #else /* !CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV) */
1141 /* Called after the relocation - use desired console functions */
1142 int console_init_r(void)
1144 struct stdio_dev *inputdev = NULL, *outputdev = NULL;
1146 struct list_head *list = stdio_get_list();
1147 struct list_head *pos;
1148 struct stdio_dev *dev;
1151 /* update silent for env loaded from flash (initr_env) */
1152 if (console_update_silent())
1153 flushpoint = PRE_CONSOLE_FLUSHPOINT1_SERIAL;
1155 flushpoint = PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL;
1158 * suppress all output if splash screen is enabled and we have
1159 * a bmp to display. We redirect the output from frame buffer
1160 * console to serial console in this case or suppress it if
1161 * "silent" mode was requested.
1163 if (IS_ENABLED(CONFIG_SPLASH_SCREEN) && env_get("splashimage")) {
1164 if (!(gd->flags & GD_FLG_SILENT))
1165 outputdev = console_search_dev (DEV_FLAGS_OUTPUT, "serial");
1168 /* Scan devices looking for input and output devices */
1169 list_for_each(pos, list) {
1170 dev = list_entry(pos, struct stdio_dev, list);
1172 if ((dev->flags & DEV_FLAGS_INPUT) && (inputdev == NULL)) {
1175 if ((dev->flags & DEV_FLAGS_OUTPUT) && (outputdev == NULL)) {
1178 if(inputdev && outputdev)
1182 /* Initializes output console first */
1183 if (outputdev != NULL) {
1184 console_setfile_and_devices(stdout, outputdev);
1185 console_setfile_and_devices(stderr, outputdev);
1188 /* Initializes input console */
1189 if (inputdev != NULL)
1190 console_setfile_and_devices(stdin, inputdev);
1192 if (!IS_ENABLED(CONFIG_SYS_CONSOLE_INFO_QUIET))
1193 stdio_print_current_devices();
1195 /* Setting environment variables */
1196 for (i = 0; i < MAX_FILES; i++) {
1197 env_set(stdio_names[i], stdio_devices[i]->name);
1200 gd->flags |= GD_FLG_DEVINIT; /* device initialization completed */
1202 print_pre_console_buffer(flushpoint);
1206 #endif /* CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV) */