1 // SPDX-License-Identifier: GPL-2.0+
4 * Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio@tin.it
9 #include <debug_uart.h>
18 #include <stdio_dev.h>
20 #include <env_internal.h>
22 #include <linux/delay.h>
24 DECLARE_GLOBAL_DATA_PTR;
26 static int on_console(const char *name, const char *value, enum env_op op,
31 /* Check for console redirection */
32 if (strcmp(name, "stdin") == 0)
34 else if (strcmp(name, "stdout") == 0)
36 else if (strcmp(name, "stderr") == 0)
39 /* if not actually setting a console variable, we don't care */
40 if (console == -1 || (gd->flags & GD_FLG_DEVINIT) == 0)
45 case env_op_overwrite:
47 if (CONFIG_IS_ENABLED(CONSOLE_MUX)) {
48 if (iomux_doenv(console, value))
51 /* Try assigning specified device */
52 if (console_assign(console, value) < 0)
59 if ((flags & H_FORCE) == 0)
60 printf("Can't delete \"%s\"\n", name);
67 U_BOOT_ENV_CALLBACK(console, on_console);
69 #ifdef CONFIG_SILENT_CONSOLE
70 static int on_silent(const char *name, const char *value, enum env_op op,
73 if (!CONFIG_IS_ENABLED(SILENT_CONSOLE_UPDATE_ON_SET))
74 if (flags & H_INTERACTIVE)
77 if (!CONFIG_IS_ENABLED(SILENT_CONSOLE_UPDATE_ON_RELOC))
78 if ((flags & H_INTERACTIVE) == 0)
82 gd->flags |= GD_FLG_SILENT;
84 gd->flags &= ~GD_FLG_SILENT;
88 U_BOOT_ENV_CALLBACK(silent, on_silent);
91 #ifdef CONFIG_CONSOLE_RECORD
92 /* helper function: access to gd->console_out and gd->console_in */
93 static void console_record_putc(const char c)
95 if (!(gd->flags & GD_FLG_RECORD))
97 if (gd->console_out.start)
98 membuff_putbyte((struct membuff *)&gd->console_out, c);
101 static void console_record_puts(const char *s)
103 if (!(gd->flags & GD_FLG_RECORD))
105 if (gd->console_out.start)
106 membuff_put((struct membuff *)&gd->console_out, s, strlen(s));
109 static int console_record_getc(void)
111 if (!(gd->flags & GD_FLG_RECORD))
113 if (!gd->console_in.start)
116 return membuff_getbyte((struct membuff *)&gd->console_in);
119 static int console_record_tstc(void)
121 if (!(gd->flags & GD_FLG_RECORD))
123 if (gd->console_in.start) {
124 if (membuff_peekbyte((struct membuff *)&gd->console_in) != -1)
130 static void console_record_putc(char c)
134 static void console_record_puts(const char *s)
138 static int console_record_getc(void)
143 static int console_record_tstc(void)
149 #if CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV)
151 * if overwrite_console returns 1, the stdin, stderr and stdout
152 * are switched to the serial port, else the settings in the
153 * environment are used
155 #ifdef CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE
156 extern int overwrite_console(void);
157 #define OVERWRITE_CONSOLE overwrite_console()
159 #define OVERWRITE_CONSOLE 0
160 #endif /* CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE */
162 #endif /* CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV) */
164 static int console_setfile(int file, struct stdio_dev * dev)
175 error = console_start(file, dev);
179 /* Assign the new device (leaving the existing one started) */
180 stdio_devices[file] = dev;
183 * Update monitor functions
184 * (to use the console stuff by other applications)
188 gd->jt->getc = getchar;
194 gd->jt->printf = printf;
199 default: /* Invalid file ID */
206 * console_dev_is_serial() - Check if a stdio device is a serial device
208 * @sdev: Device to check
209 * @return true if this device is in the serial uclass (or for pre-driver-model,
210 * whether it is called "serial".
212 static bool console_dev_is_serial(struct stdio_dev *sdev)
216 if (IS_ENABLED(CONFIG_DM_SERIAL) && (sdev->flags & DEV_FLAGS_DM)) {
217 struct udevice *dev = sdev->priv;
219 is_serial = device_get_uclass_id(dev) == UCLASS_SERIAL;
221 is_serial = !strcmp(sdev->name, "serial");
227 #if CONFIG_IS_ENABLED(CONSOLE_MUX)
228 /** Console I/O multiplexing *******************************************/
230 /* tstcdev: save the last stdio device with pending characters, with tstc != 0 */
231 static struct stdio_dev *tstcdev;
232 struct stdio_dev **console_devices[MAX_FILES];
233 int cd_count[MAX_FILES];
235 static void __maybe_unused console_devices_set(int file, struct stdio_dev *dev)
237 console_devices[file][0] = dev;
241 * console_needs_start_stop() - check if we need to start or stop the STDIO device
243 * @sdev: STDIO device in question
245 * This function checks if we need to start or stop the stdio device used for
246 * a console. For IOMUX case it simply enforces one time start and one time
247 * stop of the device independently of how many STDIO files are using it. In
248 * other words, we start console once before first STDIO device wants it and
249 * stop after the last is gone.
251 static bool console_needs_start_stop(int file, struct stdio_dev *sdev)
255 for (i = 0; i < ARRAY_SIZE(cd_count); i++) {
259 for (j = 0; j < cd_count[i]; j++)
260 if (console_devices[i][j] == sdev)
267 * This depends on tstc() always being called before getchar().
268 * This is guaranteed to be true because this routine is called
269 * only from fgetc() which assures it.
270 * No attempt is made to demultiplex multiple input sources.
272 static int console_getc(int file)
276 /* This is never called with testcdev == NULL */
277 ret = tstcdev->getc(tstcdev);
282 /* Upper layer may have already called tstc(): check the saved result */
283 static bool console_has_tstc(void)
288 static int console_tstc(int file)
291 struct stdio_dev *dev;
294 prev = disable_ctrlc(1);
295 for (i = 0; i < cd_count[file]; i++) {
296 dev = console_devices[file][i];
297 if (dev->tstc != NULL) {
298 ret = dev->tstc(dev);
311 static void console_putc(int file, const char c)
314 struct stdio_dev *dev;
316 for (i = 0; i < cd_count[file]; i++) {
317 dev = console_devices[file][i];
318 if (dev->putc != NULL)
324 * console_puts_select() - Output a string to all console devices
326 * @file: File number to output to (e,g, stdout, see stdio.h)
327 * @serial_only: true to output only to serial, false to output to everything
329 * @s: String to output
331 static void console_puts_select(int file, bool serial_only, const char *s)
334 struct stdio_dev *dev;
336 for (i = 0; i < cd_count[file]; i++) {
339 dev = console_devices[file][i];
340 is_serial = console_dev_is_serial(dev);
341 if (dev->puts && serial_only == is_serial)
346 void console_puts_select_stderr(bool serial_only, const char *s)
348 console_puts_select(stderr, serial_only, s);
351 static void console_puts(int file, const char *s)
354 struct stdio_dev *dev;
356 for (i = 0; i < cd_count[file]; i++) {
357 dev = console_devices[file][i];
358 if (dev->puts != NULL)
363 #if CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV)
364 static inline void console_doenv(int file, struct stdio_dev *dev)
366 iomux_doenv(file, dev->name);
371 static void __maybe_unused console_devices_set(int file, struct stdio_dev *dev)
375 static inline bool console_needs_start_stop(int file, struct stdio_dev *sdev)
380 static inline int console_getc(int file)
382 return stdio_devices[file]->getc(stdio_devices[file]);
385 static bool console_has_tstc(void)
390 static inline int console_tstc(int file)
392 return stdio_devices[file]->tstc(stdio_devices[file]);
395 static inline void console_putc(int file, const char c)
397 stdio_devices[file]->putc(stdio_devices[file], c);
400 void console_puts_select(int file, bool serial_only, const char *s)
402 if (serial_only == console_dev_is_serial(stdio_devices[file]))
403 stdio_devices[file]->puts(stdio_devices[file], s);
406 static inline void console_puts(int file, const char *s)
408 stdio_devices[file]->puts(stdio_devices[file], s);
411 #if CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV)
412 static inline void console_doenv(int file, struct stdio_dev *dev)
414 console_setfile(file, dev);
417 #endif /* CONIFIG_IS_ENABLED(CONSOLE_MUX) */
419 int console_start(int file, struct stdio_dev *sdev)
423 if (!console_needs_start_stop(file, sdev))
426 /* Start new device */
428 error = sdev->start(sdev);
429 /* If it's not started don't use it */
436 void console_stop(int file, struct stdio_dev *sdev)
438 if (!console_needs_start_stop(file, sdev))
445 /** U-Boot INITIAL CONSOLE-NOT COMPATIBLE FUNCTIONS *************************/
447 int serial_printf(const char *fmt, ...)
451 char printbuffer[CONFIG_SYS_PBSIZE];
455 /* For this to work, printbuffer must be larger than
456 * anything we ever want to print.
458 i = vscnprintf(printbuffer, sizeof(printbuffer), fmt, args);
461 serial_puts(printbuffer);
467 if (file < MAX_FILES) {
469 * Effectively poll for input wherever it may be available.
473 if (CONFIG_IS_ENABLED(CONSOLE_MUX)) {
475 * Upper layer may have already called tstc() so
476 * check for that first.
478 if (console_has_tstc())
479 return console_getc(file);
482 if (console_tstc(file))
483 return console_getc(file);
487 * If the watchdog must be rate-limited then it should
488 * already be handled in board-specific code.
490 if (IS_ENABLED(CONFIG_WATCHDOG))
500 if (file < MAX_FILES)
501 return console_tstc(file);
506 void fputc(int file, const char c)
508 if (file < MAX_FILES)
509 console_putc(file, c);
512 void fputs(int file, const char *s)
514 if (file < MAX_FILES)
515 console_puts(file, s);
518 int fprintf(int file, const char *fmt, ...)
522 char printbuffer[CONFIG_SYS_PBSIZE];
526 /* For this to work, printbuffer must be larger than
527 * anything we ever want to print.
529 i = vscnprintf(printbuffer, sizeof(printbuffer), fmt, args);
532 /* Send to desired file */
533 fputs(file, printbuffer);
537 /** U-Boot INITIAL CONSOLE-COMPATIBLE FUNCTION *****************************/
543 if (IS_ENABLED(CONFIG_DISABLE_CONSOLE) && (gd->flags & GD_FLG_DISABLE_CONSOLE))
546 if (!gd->have_console)
549 ch = console_record_getc();
553 if (gd->flags & GD_FLG_DEVINIT) {
554 /* Get from the standard input */
558 /* Send directly to the handler */
559 return serial_getc();
564 if (IS_ENABLED(CONFIG_DISABLE_CONSOLE) && (gd->flags & GD_FLG_DISABLE_CONSOLE))
567 if (!gd->have_console)
570 if (console_record_tstc())
573 if (gd->flags & GD_FLG_DEVINIT) {
574 /* Test the standard input */
578 /* Send directly to the handler */
579 return serial_tstc();
582 #define PRE_CONSOLE_FLUSHPOINT1_SERIAL 0
583 #define PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL 1
585 #if CONFIG_IS_ENABLED(PRE_CONSOLE_BUFFER)
586 #define CIRC_BUF_IDX(idx) ((idx) % (unsigned long)CONFIG_PRE_CON_BUF_SZ)
588 static void pre_console_putc(const char c)
592 buffer = map_sysmem(CONFIG_PRE_CON_BUF_ADDR, CONFIG_PRE_CON_BUF_SZ);
594 buffer[CIRC_BUF_IDX(gd->precon_buf_idx++)] = c;
596 unmap_sysmem(buffer);
599 static void pre_console_puts(const char *s)
602 pre_console_putc(*s++);
605 static void print_pre_console_buffer(int flushpoint)
607 unsigned long in = 0, out = 0;
608 char buf_out[CONFIG_PRE_CON_BUF_SZ + 1];
611 if (IS_ENABLED(CONFIG_SILENT_CONSOLE) && (gd->flags & GD_FLG_SILENT))
614 buf_in = map_sysmem(CONFIG_PRE_CON_BUF_ADDR, CONFIG_PRE_CON_BUF_SZ);
615 if (gd->precon_buf_idx > CONFIG_PRE_CON_BUF_SZ)
616 in = gd->precon_buf_idx - CONFIG_PRE_CON_BUF_SZ;
618 while (in < gd->precon_buf_idx)
619 buf_out[out++] = buf_in[CIRC_BUF_IDX(in++)];
620 unmap_sysmem(buf_in);
624 switch (flushpoint) {
625 case PRE_CONSOLE_FLUSHPOINT1_SERIAL:
628 case PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL:
629 console_puts_select(stdout, false, buf_out);
634 static inline void pre_console_putc(const char c) {}
635 static inline void pre_console_puts(const char *s) {}
636 static inline void print_pre_console_buffer(int flushpoint) {}
639 void putc(const char c)
644 console_record_putc(c);
646 /* sandbox can send characters to stdout before it has a console */
647 if (IS_ENABLED(CONFIG_SANDBOX) && !(gd->flags & GD_FLG_SERIAL_READY)) {
652 /* if we don't have a console yet, use the debug UART */
653 if (IS_ENABLED(CONFIG_DEBUG_UART) && !(gd->flags & GD_FLG_SERIAL_READY)) {
658 if (IS_ENABLED(CONFIG_SILENT_CONSOLE) && (gd->flags & GD_FLG_SILENT)) {
659 if (!(gd->flags & GD_FLG_DEVINIT))
664 if (IS_ENABLED(CONFIG_DISABLE_CONSOLE) && (gd->flags & GD_FLG_DISABLE_CONSOLE))
667 if (!gd->have_console)
668 return pre_console_putc(c);
670 if (gd->flags & GD_FLG_DEVINIT) {
671 /* Send to the standard output */
674 /* Send directly to the handler */
680 void puts(const char *s)
685 console_record_puts(s);
687 /* sandbox can send characters to stdout before it has a console */
688 if (IS_ENABLED(CONFIG_SANDBOX) && !(gd->flags & GD_FLG_SERIAL_READY)) {
693 if (IS_ENABLED(CONFIG_DEBUG_UART) && !(gd->flags & GD_FLG_SERIAL_READY)) {
702 if (IS_ENABLED(CONFIG_SILENT_CONSOLE) && (gd->flags & GD_FLG_SILENT)) {
703 if (!(gd->flags & GD_FLG_DEVINIT))
708 if (IS_ENABLED(CONFIG_DISABLE_CONSOLE) && (gd->flags & GD_FLG_DISABLE_CONSOLE))
711 if (!gd->have_console)
712 return pre_console_puts(s);
714 if (gd->flags & GD_FLG_DEVINIT) {
715 /* Send to the standard output */
718 /* Send directly to the handler */
724 #ifdef CONFIG_CONSOLE_RECORD
725 int console_record_init(void)
729 ret = membuff_new((struct membuff *)&gd->console_out,
730 CONFIG_CONSOLE_RECORD_OUT_SIZE);
733 ret = membuff_new((struct membuff *)&gd->console_in,
734 CONFIG_CONSOLE_RECORD_IN_SIZE);
739 void console_record_reset(void)
741 membuff_purge((struct membuff *)&gd->console_out);
742 membuff_purge((struct membuff *)&gd->console_in);
745 int console_record_reset_enable(void)
747 console_record_reset();
748 gd->flags |= GD_FLG_RECORD;
753 int console_record_readline(char *str, int maxlen)
755 return membuff_readline((struct membuff *)&gd->console_out, str,
759 int console_record_avail(void)
761 return membuff_avail((struct membuff *)&gd->console_out);
766 /* test if ctrl-c was pressed */
767 static int ctrlc_disabled = 0; /* see disable_ctrl() */
768 static int ctrlc_was_pressed = 0;
771 if (!ctrlc_disabled && gd->have_console) {
774 case 0x03: /* ^C - Control C */
775 ctrlc_was_pressed = 1;
785 /* Reads user's confirmation.
786 Returns 1 if user's input is "y", "Y", "yes" or "YES"
788 int confirm_yesno(void)
797 while (i < sizeof(str_input)) {
798 str_input[i] = getchar();
800 if (str_input[i] == '\r')
805 if (strncmp(str_input, "y\r", 2) == 0 ||
806 strncmp(str_input, "Y\r", 2) == 0 ||
807 strncmp(str_input, "yes\r", 4) == 0 ||
808 strncmp(str_input, "YES\r", 4) == 0)
812 /* pass 1 to disable ctrlc() checking, 0 to enable.
813 * returns previous state
815 int disable_ctrlc(int disable)
817 int prev = ctrlc_disabled; /* save previous state */
819 ctrlc_disabled = disable;
825 return ctrlc_was_pressed;
828 void clear_ctrlc(void)
830 ctrlc_was_pressed = 0;
833 /** U-Boot INIT FUNCTIONS *************************************************/
835 struct stdio_dev *console_search_dev(int flags, const char *name)
837 struct stdio_dev *dev;
839 dev = stdio_get_by_name(name);
840 #ifdef CONFIG_VIDCONSOLE_AS_LCD
841 if (!dev && !strcmp(name, CONFIG_VIDCONSOLE_AS_NAME))
842 dev = stdio_get_by_name("vidconsole");
845 if (dev && (dev->flags & flags))
851 int console_assign(int file, const char *devname)
854 struct stdio_dev *dev;
856 /* Check for valid file */
859 flag = DEV_FLAGS_INPUT;
863 flag = DEV_FLAGS_OUTPUT;
869 /* Check for valid device name */
871 dev = console_search_dev(flag, devname);
874 return console_setfile(file, dev);
879 /* return true if the 'silent' flag is removed */
880 static bool console_update_silent(void)
882 unsigned long flags = gd->flags;
884 if (!IS_ENABLED(CONFIG_SILENT_CONSOLE))
887 if (env_get("silent")) {
888 gd->flags |= GD_FLG_SILENT;
892 gd->flags &= ~GD_FLG_SILENT;
894 return !!(flags & GD_FLG_SILENT);
897 int console_announce_r(void)
899 #if !CONFIG_IS_ENABLED(PRE_CONSOLE_BUFFER)
900 char buf[DISPLAY_OPTIONS_BANNER_LENGTH];
902 display_options_get_banner(false, buf, sizeof(buf));
904 console_puts_select(stdout, false, buf);
910 /* Called before relocation - use serial functions */
911 int console_init_f(void)
913 gd->have_console = 1;
915 console_update_silent();
917 print_pre_console_buffer(PRE_CONSOLE_FLUSHPOINT1_SERIAL);
922 void stdio_print_current_devices(void)
924 /* Print information */
926 if (stdio_devices[stdin] == NULL) {
927 puts("No input devices available!\n");
929 printf ("%s\n", stdio_devices[stdin]->name);
933 if (stdio_devices[stdout] == NULL) {
934 puts("No output devices available!\n");
936 printf ("%s\n", stdio_devices[stdout]->name);
940 if (stdio_devices[stderr] == NULL) {
941 puts("No error devices available!\n");
943 printf ("%s\n", stdio_devices[stderr]->name);
947 #if CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV)
948 /* Called after the relocation - use desired console functions */
949 int console_init_r(void)
951 char *stdinname, *stdoutname, *stderrname;
952 struct stdio_dev *inputdev = NULL, *outputdev = NULL, *errdev = NULL;
957 /* update silent for env loaded from flash (initr_env) */
958 if (console_update_silent())
959 flushpoint = PRE_CONSOLE_FLUSHPOINT1_SERIAL;
961 flushpoint = PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL;
963 /* set default handlers at first */
964 gd->jt->getc = serial_getc;
965 gd->jt->tstc = serial_tstc;
966 gd->jt->putc = serial_putc;
967 gd->jt->puts = serial_puts;
968 gd->jt->printf = serial_printf;
970 /* stdin stdout and stderr are in environment */
972 stdinname = env_get("stdin");
973 stdoutname = env_get("stdout");
974 stderrname = env_get("stderr");
976 if (OVERWRITE_CONSOLE == 0) { /* if not overwritten by config switch */
977 inputdev = console_search_dev(DEV_FLAGS_INPUT, stdinname);
978 outputdev = console_search_dev(DEV_FLAGS_OUTPUT, stdoutname);
979 errdev = console_search_dev(DEV_FLAGS_OUTPUT, stderrname);
980 if (CONFIG_IS_ENABLED(CONSOLE_MUX)) {
981 iomux_err = iomux_doenv(stdin, stdinname);
982 iomux_err += iomux_doenv(stdout, stdoutname);
983 iomux_err += iomux_doenv(stderr, stderrname);
985 /* Successful, so skip all the code below. */
989 /* if the devices are overwritten or not found, use default device */
990 if (inputdev == NULL) {
991 inputdev = console_search_dev(DEV_FLAGS_INPUT, "serial");
993 if (outputdev == NULL) {
994 outputdev = console_search_dev(DEV_FLAGS_OUTPUT, "serial");
996 if (errdev == NULL) {
997 errdev = console_search_dev(DEV_FLAGS_OUTPUT, "serial");
999 /* Initializes output console first */
1000 if (outputdev != NULL) {
1001 /* need to set a console if not done above. */
1002 console_doenv(stdout, outputdev);
1004 if (errdev != NULL) {
1005 /* need to set a console if not done above. */
1006 console_doenv(stderr, errdev);
1008 if (inputdev != NULL) {
1009 /* need to set a console if not done above. */
1010 console_doenv(stdin, inputdev);
1015 if (!IS_ENABLED(CONFIG_SYS_CONSOLE_INFO_QUIET))
1016 stdio_print_current_devices();
1018 #ifdef CONFIG_VIDCONSOLE_AS_LCD
1019 if (strstr(stdoutname, CONFIG_VIDCONSOLE_AS_NAME))
1020 printf("Warning: Please change '%s' to 'vidconsole' in stdout/stderr environment vars\n",
1021 CONFIG_VIDCONSOLE_AS_NAME);
1024 if (IS_ENABLED(CONFIG_SYS_CONSOLE_ENV_OVERWRITE)) {
1025 /* set the environment variables (will overwrite previous env settings) */
1026 for (i = 0; i < MAX_FILES; i++)
1027 env_set(stdio_names[i], stdio_devices[i]->name);
1030 gd->flags |= GD_FLG_DEVINIT; /* device initialization completed */
1033 /* If nothing usable installed, use only the initial console */
1034 if ((stdio_devices[stdin] == NULL) && (stdio_devices[stdout] == NULL))
1037 print_pre_console_buffer(flushpoint);
1041 #else /* !CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV) */
1043 /* Called after the relocation - use desired console functions */
1044 int console_init_r(void)
1046 struct stdio_dev *inputdev = NULL, *outputdev = NULL;
1048 struct list_head *list = stdio_get_list();
1049 struct list_head *pos;
1050 struct stdio_dev *dev;
1053 /* update silent for env loaded from flash (initr_env) */
1054 if (console_update_silent())
1055 flushpoint = PRE_CONSOLE_FLUSHPOINT1_SERIAL;
1057 flushpoint = PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL;
1060 * suppress all output if splash screen is enabled and we have
1061 * a bmp to display. We redirect the output from frame buffer
1062 * console to serial console in this case or suppress it if
1063 * "silent" mode was requested.
1065 if (IS_ENABLED(CONFIG_SPLASH_SCREEN) && env_get("splashimage")) {
1066 if (!(gd->flags & GD_FLG_SILENT))
1067 outputdev = console_search_dev (DEV_FLAGS_OUTPUT, "serial");
1070 /* Scan devices looking for input and output devices */
1071 list_for_each(pos, list) {
1072 dev = list_entry(pos, struct stdio_dev, list);
1074 if ((dev->flags & DEV_FLAGS_INPUT) && (inputdev == NULL)) {
1077 if ((dev->flags & DEV_FLAGS_OUTPUT) && (outputdev == NULL)) {
1080 if(inputdev && outputdev)
1084 /* Initializes output console first */
1085 if (outputdev != NULL) {
1086 console_setfile(stdout, outputdev);
1087 console_setfile(stderr, outputdev);
1088 console_devices_set(stdout, outputdev);
1089 console_devices_set(stderr, outputdev);
1092 /* Initializes input console */
1093 if (inputdev != NULL) {
1094 console_setfile(stdin, inputdev);
1095 console_devices_set(stdin, inputdev);
1098 if (!IS_ENABLED(CONFIG_SYS_CONSOLE_INFO_QUIET))
1099 stdio_print_current_devices();
1101 /* Setting environment variables */
1102 for (i = 0; i < MAX_FILES; i++) {
1103 env_set(stdio_names[i], stdio_devices[i]->name);
1106 gd->flags |= GD_FLG_DEVINIT; /* device initialization completed */
1109 /* If nothing usable installed, use only the initial console */
1110 if ((stdio_devices[stdin] == NULL) && (stdio_devices[stdout] == NULL))
1113 print_pre_console_buffer(flushpoint);
1117 #endif /* CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV) */