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>
22 #include <video_console.h>
24 #include <asm/global_data.h>
25 #include <linux/delay.h>
27 DECLARE_GLOBAL_DATA_PTR;
31 static int on_console(const char *name, const char *value, enum env_op op,
36 /* Check for console redirection */
37 if (strcmp(name, "stdin") == 0)
39 else if (strcmp(name, "stdout") == 0)
41 else if (strcmp(name, "stderr") == 0)
44 /* if not actually setting a console variable, we don't care */
45 if (console == -1 || (gd->flags & GD_FLG_DEVINIT) == 0)
50 case env_op_overwrite:
52 if (CONFIG_IS_ENABLED(CONSOLE_MUX)) {
53 if (iomux_doenv(console, value))
56 /* Try assigning specified device */
57 if (console_assign(console, value) < 0)
64 if ((flags & H_FORCE) == 0)
65 printf("Can't delete \"%s\"\n", name);
72 U_BOOT_ENV_CALLBACK(console, on_console);
74 #ifdef CONFIG_SILENT_CONSOLE
75 static int on_silent(const char *name, const char *value, enum env_op op,
78 if (!CONFIG_IS_ENABLED(SILENT_CONSOLE_UPDATE_ON_SET))
79 if (flags & H_INTERACTIVE)
82 if (!CONFIG_IS_ENABLED(SILENT_CONSOLE_UPDATE_ON_RELOC))
83 if ((flags & H_INTERACTIVE) == 0)
87 gd->flags |= GD_FLG_SILENT;
89 gd->flags &= ~GD_FLG_SILENT;
93 U_BOOT_ENV_CALLBACK(silent, on_silent);
96 #ifdef CONFIG_CONSOLE_RECORD
97 /* helper function: access to gd->console_out and gd->console_in */
98 static void console_record_putc(const char c)
100 if (!(gd->flags & GD_FLG_RECORD))
102 if (gd->console_out.start &&
103 !membuff_putbyte((struct membuff *)&gd->console_out, c))
104 gd->flags |= GD_FLG_RECORD_OVF;
107 static void console_record_puts(const char *s)
109 if (!(gd->flags & GD_FLG_RECORD))
111 if (gd->console_out.start) {
114 if (membuff_put((struct membuff *)&gd->console_out, s, len) !=
116 gd->flags |= GD_FLG_RECORD_OVF;
120 static int console_record_getc(void)
122 if (!(gd->flags & GD_FLG_RECORD))
124 if (!gd->console_in.start)
127 return membuff_getbyte((struct membuff *)&gd->console_in);
130 static int console_record_tstc(void)
132 if (!(gd->flags & GD_FLG_RECORD))
134 if (gd->console_in.start) {
135 if (membuff_peekbyte((struct membuff *)&gd->console_in) != -1)
141 static void console_record_putc(char c)
145 static void console_record_puts(const char *s)
149 static int console_record_getc(void)
154 static int console_record_tstc(void)
160 #if CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV)
162 * if overwrite_console returns 1, the stdin, stderr and stdout
163 * are switched to the serial port, else the settings in the
164 * environment are used
166 #ifdef CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE
167 extern int overwrite_console(void);
168 #define OVERWRITE_CONSOLE overwrite_console()
170 #define OVERWRITE_CONSOLE 0
171 #endif /* CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE */
173 #endif /* CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV) */
175 static int console_setfile(int file, struct stdio_dev * dev)
186 error = console_start(file, dev);
190 /* Assign the new device (leaving the existing one started) */
191 stdio_devices[file] = dev;
194 * Update monitor functions
195 * (to use the console stuff by other applications)
199 gd->jt->getc = getchar;
205 STDIO_DEV_ASSIGN_FLUSH(gd->jt, flush);
206 gd->jt->printf = printf;
211 default: /* Invalid file ID */
218 * console_dev_is_serial() - Check if a stdio device is a serial device
220 * @sdev: Device to check
221 * Return: true if this device is in the serial uclass (or for pre-driver-model,
222 * whether it is called "serial".
224 static bool console_dev_is_serial(struct stdio_dev *sdev)
228 if (IS_ENABLED(CONFIG_DM_SERIAL) && (sdev->flags & DEV_FLAGS_DM)) {
229 struct udevice *dev = sdev->priv;
231 is_serial = device_get_uclass_id(dev) == UCLASS_SERIAL;
233 is_serial = !strcmp(sdev->name, "serial");
239 #if CONFIG_IS_ENABLED(CONSOLE_MUX)
240 /** Console I/O multiplexing *******************************************/
242 /* tstcdev: save the last stdio device with pending characters, with tstc != 0 */
243 static struct stdio_dev *tstcdev;
244 struct stdio_dev **console_devices[MAX_FILES];
245 int cd_count[MAX_FILES];
247 static void console_devices_set(int file, struct stdio_dev *dev)
249 console_devices[file][0] = dev;
254 * console_needs_start_stop() - check if we need to start or stop the STDIO device
256 * @sdev: STDIO device in question
258 * This function checks if we need to start or stop the stdio device used for
259 * a console. For IOMUX case it simply enforces one time start and one time
260 * stop of the device independently of how many STDIO files are using it. In
261 * other words, we start console once before first STDIO device wants it and
262 * stop after the last is gone.
264 static bool console_needs_start_stop(int file, struct stdio_dev *sdev)
268 for (i = 0; i < ARRAY_SIZE(cd_count); i++) {
272 if (iomux_match_device(console_devices[i], cd_count[i], sdev) >= 0)
279 * This depends on tstc() always being called before getchar().
280 * This is guaranteed to be true because this routine is called
281 * only from fgetc() which assures it.
282 * No attempt is made to demultiplex multiple input sources.
284 static int console_getc(int file)
288 /* This is never called with testcdev == NULL */
289 ret = tstcdev->getc(tstcdev);
294 /* Upper layer may have already called tstc(): check the saved result */
295 static bool console_has_tstc(void)
300 static int console_tstc(int file)
303 struct stdio_dev *dev;
306 prev = disable_ctrlc(1);
307 for_each_console_dev(i, file, dev) {
308 if (dev->tstc != NULL) {
309 ret = dev->tstc(dev);
322 static void console_putc(int file, const char c)
325 struct stdio_dev *dev;
327 for_each_console_dev(i, file, dev) {
328 if (dev->putc != NULL)
334 * console_puts_select() - Output a string to all console devices
336 * @file: File number to output to (e,g, stdout, see stdio.h)
337 * @serial_only: true to output only to serial, false to output to everything
339 * @s: String to output
341 static void console_puts_select(int file, bool serial_only, const char *s)
344 struct stdio_dev *dev;
346 for_each_console_dev(i, file, dev) {
347 bool is_serial = console_dev_is_serial(dev);
349 if (dev->puts && serial_only == is_serial)
354 void console_puts_select_stderr(bool serial_only, const char *s)
356 if (gd->flags & GD_FLG_DEVINIT)
357 console_puts_select(stderr, serial_only, s);
360 static void console_puts(int file, const char *s)
363 struct stdio_dev *dev;
365 for_each_console_dev(i, file, dev) {
366 if (dev->puts != NULL)
371 #ifdef CONFIG_CONSOLE_FLUSH_SUPPORT
372 static void console_flush(int file)
375 struct stdio_dev *dev;
377 for_each_console_dev(i, file, dev) {
378 if (dev->flush != NULL)
384 #if CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV)
385 static inline void console_doenv(int file, struct stdio_dev *dev)
387 iomux_doenv(file, dev->name);
392 static void console_devices_set(int file, struct stdio_dev *dev)
396 static inline bool console_needs_start_stop(int file, struct stdio_dev *sdev)
401 static inline int console_getc(int file)
403 return stdio_devices[file]->getc(stdio_devices[file]);
406 static bool console_has_tstc(void)
411 static inline int console_tstc(int file)
413 return stdio_devices[file]->tstc(stdio_devices[file]);
416 static inline void console_putc(int file, const char c)
418 stdio_devices[file]->putc(stdio_devices[file], c);
421 void console_puts_select(int file, bool serial_only, const char *s)
423 if ((gd->flags & GD_FLG_DEVINIT) &&
424 serial_only == console_dev_is_serial(stdio_devices[file]))
425 stdio_devices[file]->puts(stdio_devices[file], s);
428 static inline void console_puts(int file, const char *s)
430 stdio_devices[file]->puts(stdio_devices[file], s);
433 #ifdef CONFIG_CONSOLE_FLUSH_SUPPORT
434 static inline void console_flush(int file)
436 if (stdio_devices[file]->flush)
437 stdio_devices[file]->flush(stdio_devices[file]);
441 #if CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV)
442 static inline void console_doenv(int file, struct stdio_dev *dev)
444 console_setfile(file, dev);
447 #endif /* CONIFIG_IS_ENABLED(CONSOLE_MUX) */
449 static void __maybe_unused console_setfile_and_devices(int file, struct stdio_dev *dev)
451 console_setfile(file, dev);
452 console_devices_set(file, dev);
455 int console_start(int file, struct stdio_dev *sdev)
459 if (!console_needs_start_stop(file, sdev))
462 /* Start new device */
464 error = sdev->start(sdev);
465 /* If it's not started don't use it */
472 void console_stop(int file, struct stdio_dev *sdev)
474 if (!console_needs_start_stop(file, sdev))
481 /** U-Boot INITIAL CONSOLE-NOT COMPATIBLE FUNCTIONS *************************/
483 int serial_printf(const char *fmt, ...)
487 char printbuffer[CONFIG_SYS_PBSIZE];
491 /* For this to work, printbuffer must be larger than
492 * anything we ever want to print.
494 i = vscnprintf(printbuffer, sizeof(printbuffer), fmt, args);
497 serial_puts(printbuffer);
503 if ((unsigned int)file < MAX_FILES) {
505 * Effectively poll for input wherever it may be available.
509 if (CONFIG_IS_ENABLED(CONSOLE_MUX)) {
511 * Upper layer may have already called tstc() so
512 * check for that first.
514 if (console_has_tstc())
515 return console_getc(file);
518 if (console_tstc(file))
519 return console_getc(file);
523 * If the watchdog must be rate-limited then it should
524 * already be handled in board-specific code.
526 if (IS_ENABLED(CONFIG_WATCHDOG))
536 if ((unsigned int)file < MAX_FILES)
537 return console_tstc(file);
542 void fputc(int file, const char c)
544 if ((unsigned int)file < MAX_FILES)
545 console_putc(file, c);
548 void fputs(int file, const char *s)
550 if ((unsigned int)file < MAX_FILES)
551 console_puts(file, s);
554 #ifdef CONFIG_CONSOLE_FLUSH_SUPPORT
555 void fflush(int file)
557 if ((unsigned int)file < MAX_FILES)
562 int fprintf(int file, const char *fmt, ...)
566 char printbuffer[CONFIG_SYS_PBSIZE];
570 /* For this to work, printbuffer must be larger than
571 * anything we ever want to print.
573 i = vscnprintf(printbuffer, sizeof(printbuffer), fmt, args);
576 /* Send to desired file */
577 fputs(file, printbuffer);
581 /** U-Boot INITIAL CONSOLE-COMPATIBLE FUNCTION *****************************/
587 if (IS_ENABLED(CONFIG_DISABLE_CONSOLE) && (gd->flags & GD_FLG_DISABLE_CONSOLE))
590 if (!gd->have_console)
593 ch = console_record_getc();
597 if (gd->flags & GD_FLG_DEVINIT) {
598 /* Get from the standard input */
602 /* Send directly to the handler */
603 return serial_getc();
608 if (IS_ENABLED(CONFIG_DISABLE_CONSOLE) && (gd->flags & GD_FLG_DISABLE_CONSOLE))
611 if (!gd->have_console)
614 if (console_record_tstc())
617 if (gd->flags & GD_FLG_DEVINIT) {
618 /* Test the standard input */
622 /* Send directly to the handler */
623 return serial_tstc();
626 #define PRE_CONSOLE_FLUSHPOINT1_SERIAL 0
627 #define PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL 1
629 #if CONFIG_IS_ENABLED(PRE_CONSOLE_BUFFER)
630 #define CIRC_BUF_IDX(idx) ((idx) % (unsigned long)CONFIG_VAL(PRE_CON_BUF_SZ))
632 static void pre_console_putc(const char c)
636 if (gd->precon_buf_idx < 0)
639 buffer = map_sysmem(CONFIG_VAL(PRE_CON_BUF_ADDR), CONFIG_VAL(PRE_CON_BUF_SZ));
641 buffer[CIRC_BUF_IDX(gd->precon_buf_idx++)] = c;
643 unmap_sysmem(buffer);
646 static void pre_console_puts(const char *s)
648 if (gd->precon_buf_idx < 0)
652 pre_console_putc(*s++);
655 static void print_pre_console_buffer(int flushpoint)
657 long in = 0, out = 0;
658 char buf_out[CONFIG_VAL(PRE_CON_BUF_SZ) + 1];
661 if (IS_ENABLED(CONFIG_SILENT_CONSOLE) && (gd->flags & GD_FLG_SILENT))
664 buf_in = map_sysmem(CONFIG_VAL(PRE_CON_BUF_ADDR), CONFIG_VAL(PRE_CON_BUF_SZ));
665 if (gd->precon_buf_idx > CONFIG_VAL(PRE_CON_BUF_SZ))
666 in = gd->precon_buf_idx - CONFIG_VAL(PRE_CON_BUF_SZ);
668 while (in < gd->precon_buf_idx)
669 buf_out[out++] = buf_in[CIRC_BUF_IDX(in++)];
670 unmap_sysmem(buf_in);
674 gd->precon_buf_idx = -1;
675 switch (flushpoint) {
676 case PRE_CONSOLE_FLUSHPOINT1_SERIAL:
679 case PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL:
680 console_puts_select(stdout, false, buf_out);
683 gd->precon_buf_idx = in;
686 static inline void pre_console_putc(const char c) {}
687 static inline void pre_console_puts(const char *s) {}
688 static inline void print_pre_console_buffer(int flushpoint) {}
691 void putc(const char c)
696 console_record_putc(c);
698 /* sandbox can send characters to stdout before it has a console */
699 if (IS_ENABLED(CONFIG_SANDBOX) && !(gd->flags & GD_FLG_SERIAL_READY)) {
704 /* if we don't have a console yet, use the debug UART */
705 if (IS_ENABLED(CONFIG_DEBUG_UART) && !(gd->flags & GD_FLG_SERIAL_READY)) {
710 if (IS_ENABLED(CONFIG_SILENT_CONSOLE) && (gd->flags & GD_FLG_SILENT)) {
711 if (!(gd->flags & GD_FLG_DEVINIT))
716 if (IS_ENABLED(CONFIG_DISABLE_CONSOLE) && (gd->flags & GD_FLG_DISABLE_CONSOLE))
719 if (!gd->have_console)
720 return pre_console_putc(c);
722 if (gd->flags & GD_FLG_DEVINIT) {
723 /* Send to the standard output */
726 /* Send directly to the handler */
732 void puts(const char *s)
737 console_record_puts(s);
739 /* sandbox can send characters to stdout before it has a console */
740 if (IS_ENABLED(CONFIG_SANDBOX) && !(gd->flags & GD_FLG_SERIAL_READY)) {
745 if (IS_ENABLED(CONFIG_DEBUG_UART) && !(gd->flags & GD_FLG_SERIAL_READY)) {
754 if (IS_ENABLED(CONFIG_SILENT_CONSOLE) && (gd->flags & GD_FLG_SILENT)) {
755 if (!(gd->flags & GD_FLG_DEVINIT))
760 if (IS_ENABLED(CONFIG_DISABLE_CONSOLE) && (gd->flags & GD_FLG_DISABLE_CONSOLE))
763 if (!gd->have_console)
764 return pre_console_puts(s);
766 if (gd->flags & GD_FLG_DEVINIT) {
767 /* Send to the standard output */
770 /* Send directly to the handler */
776 #ifdef CONFIG_CONSOLE_FLUSH_SUPPORT
782 /* sandbox can send characters to stdout before it has a console */
783 if (IS_ENABLED(CONFIG_SANDBOX) && !(gd->flags & GD_FLG_SERIAL_READY)) {
788 if (IS_ENABLED(CONFIG_DEBUG_UART) && !(gd->flags & GD_FLG_SERIAL_READY))
791 if (IS_ENABLED(CONFIG_SILENT_CONSOLE) && (gd->flags & GD_FLG_SILENT))
794 if (IS_ENABLED(CONFIG_DISABLE_CONSOLE) && (gd->flags & GD_FLG_DISABLE_CONSOLE))
797 if (!gd->have_console)
800 if (gd->flags & GD_FLG_DEVINIT) {
801 /* Send to the standard output */
804 /* Send directly to the handler */
810 #ifdef CONFIG_CONSOLE_RECORD
811 int console_record_init(void)
815 ret = membuff_new((struct membuff *)&gd->console_out,
816 gd->flags & GD_FLG_RELOC ?
817 CONFIG_CONSOLE_RECORD_OUT_SIZE :
818 CONFIG_CONSOLE_RECORD_OUT_SIZE_F);
821 ret = membuff_new((struct membuff *)&gd->console_in,
822 CONFIG_CONSOLE_RECORD_IN_SIZE);
824 /* Start recording from the beginning */
825 gd->flags |= GD_FLG_RECORD;
830 void console_record_reset(void)
832 membuff_purge((struct membuff *)&gd->console_out);
833 membuff_purge((struct membuff *)&gd->console_in);
834 gd->flags &= ~GD_FLG_RECORD_OVF;
837 int console_record_reset_enable(void)
839 console_record_reset();
840 gd->flags |= GD_FLG_RECORD;
845 int console_record_readline(char *str, int maxlen)
847 if (gd->flags & GD_FLG_RECORD_OVF)
850 return membuff_readline((struct membuff *)&gd->console_out, str,
851 maxlen, '\0', false);
854 int console_record_avail(void)
856 return membuff_avail((struct membuff *)&gd->console_out);
859 bool console_record_isempty(void)
861 return membuff_isempty((struct membuff *)&gd->console_out);
864 int console_in_puts(const char *str)
866 return membuff_put((struct membuff *)&gd->console_in, str, strlen(str));
871 /* test if ctrl-c was pressed */
872 static int ctrlc_disabled = 0; /* see disable_ctrl() */
873 static int ctrlc_was_pressed = 0;
876 if (!ctrlc_disabled && gd->have_console) {
879 case 0x03: /* ^C - Control C */
880 ctrlc_was_pressed = 1;
890 /* Reads user's confirmation.
891 Returns 1 if user's input is "y", "Y", "yes" or "YES"
893 int confirm_yesno(void)
902 while (i < sizeof(str_input)) {
903 str_input[i] = getchar();
905 if (str_input[i] == '\r')
910 if (strncmp(str_input, "y\r", 2) == 0 ||
911 strncmp(str_input, "Y\r", 2) == 0 ||
912 strncmp(str_input, "yes\r", 4) == 0 ||
913 strncmp(str_input, "YES\r", 4) == 0)
917 /* pass 1 to disable ctrlc() checking, 0 to enable.
918 * returns previous state
920 int disable_ctrlc(int disable)
922 int prev = ctrlc_disabled; /* save previous state */
924 ctrlc_disabled = disable;
930 return ctrlc_was_pressed;
933 void clear_ctrlc(void)
935 ctrlc_was_pressed = 0;
938 /** U-Boot INIT FUNCTIONS *************************************************/
940 struct stdio_dev *console_search_dev(int flags, const char *name)
942 struct stdio_dev *dev;
944 dev = stdio_get_by_name(name);
945 #ifdef CONFIG_VIDCONSOLE_AS_LCD
946 if (!dev && !strcmp(name, CONFIG_VIDCONSOLE_AS_NAME))
947 dev = stdio_get_by_name("vidconsole");
950 if (dev && (dev->flags & flags))
956 int console_assign(int file, const char *devname)
959 struct stdio_dev *dev;
961 /* Check for valid file */
962 flag = stdio_file_to_flags(file);
966 /* Check for valid device name */
968 dev = console_search_dev(flag, devname);
971 return console_setfile(file, dev);
976 /* return true if the 'silent' flag is removed */
977 static bool console_update_silent(void)
979 unsigned long flags = gd->flags;
981 if (!IS_ENABLED(CONFIG_SILENT_CONSOLE))
984 if (IS_ENABLED(CONFIG_SILENT_CONSOLE_UNTIL_ENV) && !(gd->flags & GD_FLG_ENV_READY)) {
985 gd->flags |= GD_FLG_SILENT;
989 if (env_get("silent")) {
990 gd->flags |= GD_FLG_SILENT;
994 gd->flags &= ~GD_FLG_SILENT;
996 return !!(flags & GD_FLG_SILENT);
999 int console_announce_r(void)
1001 #if !CONFIG_IS_ENABLED(PRE_CONSOLE_BUFFER)
1002 char buf[DISPLAY_OPTIONS_BANNER_LENGTH];
1004 display_options_get_banner(false, buf, sizeof(buf));
1006 console_puts_select(stdout, false, buf);
1012 /* Called before relocation - use serial functions */
1013 int console_init_f(void)
1015 gd->have_console = 1;
1017 console_update_silent();
1019 print_pre_console_buffer(PRE_CONSOLE_FLUSHPOINT1_SERIAL);
1024 int console_clear(void)
1027 * Send clear screen and home
1030 * through an API and only be written to serial terminals, not video
1033 printf(CSI "2J" CSI "1;1H");
1034 if (IS_ENABLED(CONFIG_VIDEO_ANSI))
1037 if (IS_ENABLED(CONFIG_VIDEO)) {
1038 struct udevice *dev;
1041 ret = uclass_first_device_err(UCLASS_VIDEO_CONSOLE, &dev);
1044 ret = vidconsole_clear_and_reset(dev);
1052 static char *get_stdio(const u8 std)
1054 return stdio_devices[std] ? stdio_devices[std]->name : "No devices available!";
1057 static void stdio_print_current_devices(void)
1059 char *stdinname = NULL;
1060 char *stdoutname = NULL;
1061 char *stderrname = NULL;
1063 if (CONFIG_IS_ENABLED(CONSOLE_MUX) &&
1064 CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV)) {
1065 /* stdin stdout and stderr are in environment */
1066 stdinname = env_get("stdin");
1067 stdoutname = env_get("stdout");
1068 stderrname = env_get("stderr");
1071 stdinname = stdinname ? : get_stdio(stdin);
1072 stdoutname = stdoutname ? : get_stdio(stdout);
1073 stderrname = stderrname ? : get_stdio(stderr);
1075 /* Print information */
1077 printf("%s\n", stdinname);
1080 printf("%s\n", stdoutname);
1083 printf("%s\n", stderrname);
1086 #if CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV)
1087 /* Called after the relocation - use desired console functions */
1088 int console_init_r(void)
1090 char *stdinname, *stdoutname, *stderrname;
1091 struct stdio_dev *inputdev = NULL, *outputdev = NULL, *errdev = NULL;
1096 /* update silent for env loaded from flash (initr_env) */
1097 if (console_update_silent())
1098 flushpoint = PRE_CONSOLE_FLUSHPOINT1_SERIAL;
1100 flushpoint = PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL;
1102 /* set default handlers at first */
1103 gd->jt->getc = serial_getc;
1104 gd->jt->tstc = serial_tstc;
1105 gd->jt->putc = serial_putc;
1106 gd->jt->puts = serial_puts;
1107 gd->jt->printf = serial_printf;
1109 /* stdin stdout and stderr are in environment */
1111 stdinname = env_get("stdin");
1112 stdoutname = env_get("stdout");
1113 stderrname = env_get("stderr");
1115 if (OVERWRITE_CONSOLE == 0) { /* if not overwritten by config switch */
1116 inputdev = console_search_dev(DEV_FLAGS_INPUT, stdinname);
1117 outputdev = console_search_dev(DEV_FLAGS_OUTPUT, stdoutname);
1118 errdev = console_search_dev(DEV_FLAGS_OUTPUT, stderrname);
1119 if (CONFIG_IS_ENABLED(CONSOLE_MUX)) {
1120 iomux_err = iomux_doenv(stdin, stdinname);
1121 iomux_err += iomux_doenv(stdout, stdoutname);
1122 iomux_err += iomux_doenv(stderr, stderrname);
1124 /* Successful, so skip all the code below. */
1128 /* if the devices are overwritten or not found, use default device */
1129 if (inputdev == NULL) {
1130 inputdev = console_search_dev(DEV_FLAGS_INPUT, "serial");
1132 if (outputdev == NULL) {
1133 outputdev = console_search_dev(DEV_FLAGS_OUTPUT, "serial");
1135 if (errdev == NULL) {
1136 errdev = console_search_dev(DEV_FLAGS_OUTPUT, "serial");
1138 /* Initializes output console first */
1139 if (outputdev != NULL) {
1140 /* need to set a console if not done above. */
1141 console_doenv(stdout, outputdev);
1143 if (errdev != NULL) {
1144 /* need to set a console if not done above. */
1145 console_doenv(stderr, errdev);
1147 if (inputdev != NULL) {
1148 /* need to set a console if not done above. */
1149 console_doenv(stdin, inputdev);
1154 if (!IS_ENABLED(CONFIG_SYS_CONSOLE_INFO_QUIET))
1155 stdio_print_current_devices();
1157 #ifdef CONFIG_VIDCONSOLE_AS_LCD
1158 if (strstr(stdoutname, CONFIG_VIDCONSOLE_AS_NAME))
1159 printf("Warning: Please change '%s' to 'vidconsole' in stdout/stderr environment vars\n",
1160 CONFIG_VIDCONSOLE_AS_NAME);
1163 if (IS_ENABLED(CONFIG_SYS_CONSOLE_ENV_OVERWRITE)) {
1164 /* set the environment variables (will overwrite previous env settings) */
1165 for (i = 0; i < MAX_FILES; i++)
1166 env_set(stdio_names[i], stdio_devices[i]->name);
1169 gd->flags |= GD_FLG_DEVINIT; /* device initialization completed */
1171 print_pre_console_buffer(flushpoint);
1175 #else /* !CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV) */
1177 /* Called after the relocation - use desired console functions */
1178 int console_init_r(void)
1180 struct stdio_dev *inputdev = NULL, *outputdev = NULL;
1182 struct list_head *list = stdio_get_list();
1183 struct list_head *pos;
1184 struct stdio_dev *dev;
1187 /* update silent for env loaded from flash (initr_env) */
1188 if (console_update_silent())
1189 flushpoint = PRE_CONSOLE_FLUSHPOINT1_SERIAL;
1191 flushpoint = PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL;
1194 * suppress all output if splash screen is enabled and we have
1195 * a bmp to display. We redirect the output from frame buffer
1196 * console to serial console in this case or suppress it if
1197 * "silent" mode was requested.
1199 if (IS_ENABLED(CONFIG_SPLASH_SCREEN) && env_get("splashimage")) {
1200 if (!(gd->flags & GD_FLG_SILENT))
1201 outputdev = console_search_dev (DEV_FLAGS_OUTPUT, "serial");
1204 /* Scan devices looking for input and output devices */
1205 list_for_each(pos, list) {
1206 dev = list_entry(pos, struct stdio_dev, list);
1208 if ((dev->flags & DEV_FLAGS_INPUT) && (inputdev == NULL)) {
1211 if ((dev->flags & DEV_FLAGS_OUTPUT) && (outputdev == NULL)) {
1214 if(inputdev && outputdev)
1218 /* Initializes output console first */
1219 if (outputdev != NULL) {
1220 console_setfile_and_devices(stdout, outputdev);
1221 console_setfile_and_devices(stderr, outputdev);
1224 /* Initializes input console */
1225 if (inputdev != NULL)
1226 console_setfile_and_devices(stdin, inputdev);
1228 if (!IS_ENABLED(CONFIG_SYS_CONSOLE_INFO_QUIET))
1229 stdio_print_current_devices();
1231 /* Setting environment variables */
1232 for (i = 0; i < MAX_FILES; i++) {
1233 env_set(stdio_names[i], stdio_devices[i]->name);
1236 gd->flags |= GD_FLG_DEVINIT; /* device initialization completed */
1238 print_pre_console_buffer(flushpoint);
1242 #endif /* CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV) */