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 #ifdef CONFIG_PSTORE
25 #include <asm/arch/pstore.h>
26 #endif
27
28 DECLARE_GLOBAL_DATA_PTR;
29
on_console(const char * name,const char * value,enum env_op op,int flags)30 static int on_console(const char *name, const char *value, enum env_op op,
31 int flags)
32 {
33 int console = -1;
34
35 /* Check for console redirection */
36 if (strcmp(name, "stdin") == 0)
37 console = stdin;
38 else if (strcmp(name, "stdout") == 0)
39 console = stdout;
40 else if (strcmp(name, "stderr") == 0)
41 console = stderr;
42
43 /* if not actually setting a console variable, we don't care */
44 if (console == -1 || (gd->flags & GD_FLG_DEVINIT) == 0)
45 return 0;
46
47 switch (op) {
48 case env_op_create:
49 case env_op_overwrite:
50
51 #if CONFIG_IS_ENABLED(CONSOLE_MUX)
52 if (iomux_doenv(console, value))
53 return 1;
54 #else
55 /* Try assigning specified device */
56 if (console_assign(console, value) < 0)
57 return 1;
58 #endif
59 return 0;
60
61 case env_op_delete:
62 if ((flags & H_FORCE) == 0)
63 printf("Can't delete \"%s\"\n", name);
64 return 1;
65
66 default:
67 return 0;
68 }
69 }
70 U_BOOT_ENV_CALLBACK(console, on_console);
71
72 #ifdef CONFIG_SILENT_CONSOLE
on_silent(const char * name,const char * value,enum env_op op,int flags)73 static int on_silent(const char *name, const char *value, enum env_op op,
74 int flags)
75 {
76 #if !CONFIG_IS_ENABLED(SILENT_CONSOLE_UPDATE_ON_SET)
77 if (flags & H_INTERACTIVE)
78 return 0;
79 #endif
80 #if !CONFIG_IS_ENABLED(SILENT_CONSOLE_UPDATE_ON_RELOC)
81 if ((flags & H_INTERACTIVE) == 0)
82 return 0;
83 #endif
84
85 if (value != NULL)
86 gd->flags |= GD_FLG_SILENT;
87 else
88 gd->flags &= ~GD_FLG_SILENT;
89
90 return 0;
91 }
92 U_BOOT_ENV_CALLBACK(silent, on_silent);
93 #endif
94
95 #if CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV)
96 /*
97 * if overwrite_console returns 1, the stdin, stderr and stdout
98 * are switched to the serial port, else the settings in the
99 * environment are used
100 */
101 #ifdef CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE
102 extern int overwrite_console(void);
103 #define OVERWRITE_CONSOLE overwrite_console()
104 #else
105 #define OVERWRITE_CONSOLE 0
106 #endif /* CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE */
107
108 #endif /* CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV) */
109
console_setfile(int file,struct stdio_dev * dev)110 static int console_setfile(int file, struct stdio_dev * dev)
111 {
112 int error = 0;
113
114 if (dev == NULL)
115 return -1;
116
117 switch (file) {
118 case stdin:
119 case stdout:
120 case stderr:
121 /* Start new device */
122 if (dev->start) {
123 error = dev->start(dev);
124 /* If it's not started dont use it */
125 if (error < 0)
126 break;
127 }
128
129 /* Assign the new device (leaving the existing one started) */
130 stdio_devices[file] = dev;
131
132 /*
133 * Update monitor functions
134 * (to use the console stuff by other applications)
135 */
136 switch (file) {
137 case stdin:
138 gd->jt->getc = getc;
139 gd->jt->tstc = tstc;
140 break;
141 case stdout:
142 gd->jt->putc = putc;
143 gd->jt->puts = puts;
144 gd->jt->printf = printf;
145 break;
146 }
147 break;
148
149 default: /* Invalid file ID */
150 error = -1;
151 }
152 return error;
153 }
154
155 /**
156 * console_dev_is_serial() - Check if a stdio device is a serial device
157 *
158 * @sdev: Device to check
159 * @return true if this device is in the serial uclass (or for pre-driver-model,
160 * whether it is called "serial".
161 */
console_dev_is_serial(struct stdio_dev * sdev)162 static bool console_dev_is_serial(struct stdio_dev *sdev)
163 {
164 bool is_serial;
165
166 #ifdef CONFIG_DM_SERIAL
167 if (sdev->flags & DEV_FLAGS_DM) {
168 struct udevice *dev = sdev->priv;
169
170 is_serial = device_get_uclass_id(dev) == UCLASS_SERIAL;
171 } else
172 #endif
173 is_serial = !strcmp(sdev->name, "serial");
174
175 return is_serial;
176 }
177
178 #if CONFIG_IS_ENABLED(CONSOLE_MUX)
179 /** Console I/O multiplexing *******************************************/
180
181 static struct stdio_dev *tstcdev;
182 struct stdio_dev **console_devices[MAX_FILES];
183 int cd_count[MAX_FILES];
184
185 /*
186 * This depends on tstc() always being called before getc().
187 * This is guaranteed to be true because this routine is called
188 * only from fgetc() which assures it.
189 * No attempt is made to demultiplex multiple input sources.
190 */
console_getc(int file)191 static int console_getc(int file)
192 {
193 unsigned char ret;
194
195 /* This is never called with testcdev == NULL */
196 ret = tstcdev->getc(tstcdev);
197 tstcdev = NULL;
198 return ret;
199 }
200
console_tstc(int file)201 static int console_tstc(int file)
202 {
203 int i, ret;
204 struct stdio_dev *dev;
205
206 disable_ctrlc(1);
207 for (i = 0; i < cd_count[file]; i++) {
208 dev = console_devices[file][i];
209 if (dev->tstc != NULL) {
210 ret = dev->tstc(dev);
211 if (ret > 0) {
212 tstcdev = dev;
213 disable_ctrlc(0);
214 return ret;
215 }
216 }
217 }
218 disable_ctrlc(0);
219
220 return 0;
221 }
222
console_putc(int file,const char c)223 static void console_putc(int file, const char c)
224 {
225 int i;
226 struct stdio_dev *dev;
227
228 for (i = 0; i < cd_count[file]; i++) {
229 dev = console_devices[file][i];
230 if (dev->putc != NULL)
231 dev->putc(dev, c);
232 }
233 }
234
console_puts_noserial(int file,const char * s)235 static void console_puts_noserial(int file, const char *s)
236 {
237 int i;
238 struct stdio_dev *dev;
239
240 for (i = 0; i < cd_count[file]; i++) {
241 dev = console_devices[file][i];
242 if (dev->puts != NULL && !console_dev_is_serial(dev))
243 dev->puts(dev, s);
244 }
245 }
246
console_puts(int file,const char * s)247 static void console_puts(int file, const char *s)
248 {
249 int i;
250 struct stdio_dev *dev;
251
252 for (i = 0; i < cd_count[file]; i++) {
253 dev = console_devices[file][i];
254 if (dev->puts != NULL)
255 dev->puts(dev, s);
256 }
257 }
258
console_doenv(int file,struct stdio_dev * dev)259 static inline void console_doenv(int file, struct stdio_dev *dev)
260 {
261 iomux_doenv(file, dev->name);
262 }
263
console_clear(int file)264 static void console_clear(int file)
265 {
266 int i;
267 struct stdio_dev *dev;
268
269 for (i = 0; i < cd_count[file]; i++) {
270 dev = console_devices[file][i];
271 if (dev->clear != NULL)
272 dev->clear(dev);
273 }
274 }
275 #else
console_getc(int file)276 static inline int console_getc(int file)
277 {
278 return stdio_devices[file]->getc(stdio_devices[file]);
279 }
280
console_tstc(int file)281 static inline int console_tstc(int file)
282 {
283 return stdio_devices[file]->tstc(stdio_devices[file]);
284 }
285
console_putc(int file,const char c)286 static inline void console_putc(int file, const char c)
287 {
288 stdio_devices[file]->putc(stdio_devices[file], c);
289 }
290
console_puts_noserial(int file,const char * s)291 static inline void console_puts_noserial(int file, const char *s)
292 {
293 if (!console_dev_is_serial(stdio_devices[file]))
294 stdio_devices[file]->puts(stdio_devices[file], s);
295 }
296
console_puts(int file,const char * s)297 static inline void console_puts(int file, const char *s)
298 {
299 stdio_devices[file]->puts(stdio_devices[file], s);
300 }
301
console_clear(int file)302 static inline void console_clear(int file)
303 {
304 if (stdio_devices[file]->clear)
305 stdio_devices[file]->clear(stdio_devices[file]);
306 }
307
console_doenv(int file,struct stdio_dev * dev)308 static inline void console_doenv(int file, struct stdio_dev *dev)
309 {
310 console_setfile(file, dev);
311 }
312 #endif /* CONIFIG_IS_ENABLED(CONSOLE_MUX) */
313
314 /** U-Boot INITIAL CONSOLE-NOT COMPATIBLE FUNCTIONS *************************/
315
serial_printf(const char * fmt,...)316 int serial_printf(const char *fmt, ...)
317 {
318 va_list args;
319 uint i;
320 char printbuffer[CONFIG_SYS_PBSIZE];
321
322 va_start(args, fmt);
323
324 /* For this to work, printbuffer must be larger than
325 * anything we ever want to print.
326 */
327 i = vscnprintf(printbuffer, sizeof(printbuffer), fmt, args);
328 va_end(args);
329
330 serial_puts(printbuffer);
331 return i;
332 }
333
fgetc(int file)334 int fgetc(int file)
335 {
336 if (file < MAX_FILES) {
337 #if CONFIG_IS_ENABLED(CONSOLE_MUX)
338 /*
339 * Effectively poll for input wherever it may be available.
340 */
341 for (;;) {
342 WATCHDOG_RESET();
343 /*
344 * Upper layer may have already called tstc() so
345 * check for that first.
346 */
347 if (tstcdev != NULL)
348 return console_getc(file);
349 console_tstc(file);
350 #ifdef CONFIG_WATCHDOG
351 /*
352 * If the watchdog must be rate-limited then it should
353 * already be handled in board-specific code.
354 */
355 udelay(1);
356 #endif
357 }
358 #else
359 return console_getc(file);
360 #endif
361 }
362
363 return -1;
364 }
365
ftstc(int file)366 int ftstc(int file)
367 {
368 if (file < MAX_FILES)
369 return console_tstc(file);
370
371 return -1;
372 }
373
fputc(int file,const char c)374 void fputc(int file, const char c)
375 {
376 if (file < MAX_FILES)
377 console_putc(file, c);
378 }
379
fputs(int file,const char * s)380 void fputs(int file, const char *s)
381 {
382 if (file < MAX_FILES)
383 console_puts(file, s);
384 }
385
fclear(int file)386 void fclear(int file)
387 {
388 if (file < MAX_FILES)
389 console_clear(file);
390 }
391
fprintf(int file,const char * fmt,...)392 int fprintf(int file, const char *fmt, ...)
393 {
394 va_list args;
395 uint i;
396 char printbuffer[CONFIG_SYS_PBSIZE];
397
398 va_start(args, fmt);
399
400 /* For this to work, printbuffer must be larger than
401 * anything we ever want to print.
402 */
403 i = vscnprintf(printbuffer, sizeof(printbuffer), fmt, args);
404 va_end(args);
405
406 /* Send to desired file */
407 fputs(file, printbuffer);
408 return i;
409 }
410
411 /** U-Boot INITIAL CONSOLE-COMPATIBLE FUNCTION *****************************/
412
getc(void)413 int getc(void)
414 {
415 if (!gd || gd->flags & GD_FLG_DISABLE_CONSOLE)
416 return 0;
417
418 if (!gd->have_console)
419 return 0;
420
421 #ifdef CONFIG_CONSOLE_RECORD
422 if (gd->console_in.start) {
423 int ch;
424
425 ch = membuff_getbyte((struct membuff *)&gd->console_in);
426 if (ch != -1)
427 return 1;
428 }
429 #endif
430 if (gd->flags & GD_FLG_DEVINIT) {
431 /* Get from the standard input */
432 return fgetc(stdin);
433 }
434
435 /* Send directly to the handler */
436 return serial_getc();
437 }
438
tstc(void)439 int tstc(void)
440 {
441 if (!gd || gd->flags & GD_FLG_DISABLE_CONSOLE)
442 return 0;
443
444 if (!gd->have_console)
445 return 0;
446 #ifdef CONFIG_CONSOLE_RECORD
447 if (gd->console_in.start) {
448 if (membuff_peekbyte((struct membuff *)&gd->console_in) != -1)
449 return 1;
450 }
451 #endif
452 if (gd->flags & GD_FLG_DEVINIT) {
453 /* Test the standard input */
454 return ftstc(stdin);
455 }
456
457 /* Send directly to the handler */
458 return serial_tstc();
459 }
460
flushc(void)461 void flushc(void)
462 {
463 if (!gd || gd->flags & GD_FLG_DISABLE_CONSOLE)
464 return;
465
466 #ifdef CONFIG_DEBUG_UART_NS16550
467 debug_uart_flushc();
468 #endif
469 }
470
471 #define PRE_CONSOLE_FLUSHPOINT1_SERIAL 0
472 #define PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL 1
473
474 #if CONFIG_IS_ENABLED(PRE_CONSOLE_BUFFER)
475 #define CIRC_BUF_IDX(idx) ((idx) % (unsigned long)CONFIG_PRE_CON_BUF_SZ)
476
pre_console_putc(const char c)477 static void pre_console_putc(const char c)
478 {
479 char *buffer;
480
481 buffer = map_sysmem(CONFIG_PRE_CON_BUF_ADDR, CONFIG_PRE_CON_BUF_SZ);
482
483 buffer[CIRC_BUF_IDX(gd->precon_buf_idx++)] = c;
484
485 unmap_sysmem(buffer);
486 }
487
print_pre_console_buffer(int flushpoint)488 static void print_pre_console_buffer(int flushpoint)
489 {
490 unsigned long in = 0, out = 0;
491 char buf_out[CONFIG_PRE_CON_BUF_SZ + 1];
492 char *buf_in;
493
494 buf_in = map_sysmem(CONFIG_PRE_CON_BUF_ADDR, CONFIG_PRE_CON_BUF_SZ);
495 if (gd->precon_buf_idx > CONFIG_PRE_CON_BUF_SZ)
496 in = gd->precon_buf_idx - CONFIG_PRE_CON_BUF_SZ;
497
498 while (in < gd->precon_buf_idx)
499 buf_out[out++] = buf_in[CIRC_BUF_IDX(in++)];
500 unmap_sysmem(buf_in);
501
502 buf_out[out] = 0;
503
504 switch (flushpoint) {
505 case PRE_CONSOLE_FLUSHPOINT1_SERIAL:
506 puts(buf_out);
507 break;
508 case PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL:
509 console_puts_noserial(stdout, buf_out);
510 break;
511 }
512 }
513 #else
pre_console_putc(const char c)514 static inline void pre_console_putc(const char c) {}
print_pre_console_buffer(int flushpoint)515 static inline void print_pre_console_buffer(int flushpoint) {}
516 #endif
517
putc(const char c)518 void putc(const char c)
519 {
520 if (!gd || gd->flags & GD_FLG_DISABLE_CONSOLE)
521 return;
522
523 #ifdef CONFIG_PSTORE
524 putc_to_ram(c);
525 #endif
526
527 #ifdef CONFIG_DEBUG_UART
528 /* if we don't have a console yet, use the debug UART */
529 if (!gd || !(gd->flags & GD_FLG_SERIAL_READY)) {
530 printch(c);
531 return;
532 }
533 #endif
534 #ifdef CONFIG_CONSOLE_RECORD
535 if (gd && (gd->flags & GD_FLG_RECORD) && gd->console_out.start)
536 membuff_putbyte((struct membuff *)&gd->console_out, c);
537 #endif
538 #ifdef CONFIG_SILENT_CONSOLE
539 if (gd->flags & GD_FLG_SILENT)
540 return;
541 #endif
542
543 if (!gd->have_console)
544 return pre_console_putc(c);
545
546 if (gd->flags & GD_FLG_DEVINIT) {
547 /* Send to the standard output */
548 fputc(stdout, c);
549 } else {
550 /* Send directly to the handler */
551 pre_console_putc(c);
552 serial_putc(c);
553 }
554 }
555
556 #if ((!defined(CONFIG_SPL_BUILD) || !defined(CONFIG_USE_TINY_PRINTF)) && \
557 defined(CONFIG_BOOTSTAGE_PRINTF_TIMESTAMP))
vspfunc(char * buf,size_t size,char * format,...)558 static void vspfunc(char *buf, size_t size, char *format, ...)
559 {
560 va_list ap;
561
562 va_start(ap, format);
563 vsnprintf(buf, size, format, ap);
564 va_end(ap);
565 }
566
puts(const char * s)567 void puts(const char *s)
568 {
569 unsigned long ts_sec, ts_msec, ticks;
570 char pr_timestamp[32], *p;
571
572 while (*s) {
573 if (*s == '\n') {
574 gd->new_line = 1;
575 putc(*s++);
576 continue;
577 }
578
579 if (gd->new_line) {
580 gd->new_line = 0;
581 ticks = (get_ticks() / 24ULL);
582 ts_sec = ticks / 1000000;
583 ts_msec = ticks % 1000000;
584 vspfunc(pr_timestamp, sizeof(pr_timestamp),
585 "[%5lu.%06lu] ", ts_sec, ts_msec);
586 p = pr_timestamp;
587 while (*p)
588 putc(*p++);
589 }
590
591 putc(*s++);
592 }
593 }
594 #else
puts(const char * s)595 void puts(const char *s)
596 {
597 while (*s)
598 putc(*s++);
599 }
600 #endif
601
602
603 #ifdef CONFIG_CONSOLE_RECORD
console_record_init(void)604 int console_record_init(void)
605 {
606 int ret;
607
608 ret = membuff_new((struct membuff *)&gd->console_out,
609 CONFIG_CONSOLE_RECORD_OUT_SIZE);
610 if (ret)
611 return ret;
612 ret = membuff_new((struct membuff *)&gd->console_in,
613 CONFIG_CONSOLE_RECORD_IN_SIZE);
614
615 return ret;
616 }
617
console_record_reset(void)618 void console_record_reset(void)
619 {
620 membuff_purge((struct membuff *)&gd->console_out);
621 membuff_purge((struct membuff *)&gd->console_in);
622 }
623
console_record_reset_enable(void)624 void console_record_reset_enable(void)
625 {
626 console_record_reset();
627 gd->flags |= GD_FLG_RECORD;
628 }
629
630 /* Print and remove data from buffer */
console_record_print_purge(void)631 void console_record_print_purge(void)
632 {
633 unsigned long flags;
634 char c;
635
636 if (!gd || !(gd->flags & GD_FLG_RECORD))
637 return;
638
639 /* Remove some bits to avoid running unexpected branch in putc() */
640 flags = gd->flags;
641 gd->flags &= ~(GD_FLG_RECORD | GD_FLG_SILENT | GD_FLG_DISABLE_CONSOLE);
642
643 printf("\n\n## Console Record: \n");
644 while (!membuff_isempty((struct membuff *)&gd->console_out)) {
645 c = membuff_getbyte((struct membuff *)&gd->console_out);
646 putc(c);
647 }
648
649 gd->flags = flags;
650 }
651 #endif
652
653 /* test if ctrl-c was pressed */
654 static int ctrlc_disabled = 0; /* see disable_ctrl() */
655 static int ctrlc_was_pressed = 0;
ctrlc(void)656 int ctrlc(void)
657 {
658 #ifndef CONFIG_SANDBOX
659 if (!ctrlc_disabled && gd->have_console) {
660 if (tstc()) {
661 switch (getc()) {
662 case 0x03: /* ^C - Control C */
663 ctrlc_was_pressed = 1;
664 return 1;
665 default:
666 break;
667 }
668 }
669 }
670 #endif
671
672 return 0;
673 }
674 /* Reads user's confirmation.
675 Returns 1 if user's input is "y", "Y", "yes" or "YES"
676 */
confirm_yesno(void)677 int confirm_yesno(void)
678 {
679 int i;
680 char str_input[5];
681
682 /* Flush input */
683 while (tstc())
684 getc();
685 i = 0;
686 while (i < sizeof(str_input)) {
687 str_input[i] = getc();
688 putc(str_input[i]);
689 if (str_input[i] == '\r')
690 break;
691 i++;
692 }
693 putc('\n');
694 if (strncmp(str_input, "y\r", 2) == 0 ||
695 strncmp(str_input, "Y\r", 2) == 0 ||
696 strncmp(str_input, "yes\r", 4) == 0 ||
697 strncmp(str_input, "YES\r", 4) == 0)
698 return 1;
699 return 0;
700 }
701 /* pass 1 to disable ctrlc() checking, 0 to enable.
702 * returns previous state
703 */
disable_ctrlc(int disable)704 int disable_ctrlc(int disable)
705 {
706 int prev = ctrlc_disabled; /* save previous state */
707
708 ctrlc_disabled = disable;
709 return prev;
710 }
711
had_ctrlc(void)712 int had_ctrlc (void)
713 {
714 return ctrlc_was_pressed;
715 }
716
clear_ctrlc(void)717 void clear_ctrlc(void)
718 {
719 ctrlc_was_pressed = 0;
720 }
721
722 /** U-Boot INIT FUNCTIONS *************************************************/
723
search_device(int flags,const char * name)724 struct stdio_dev *search_device(int flags, const char *name)
725 {
726 struct stdio_dev *dev;
727
728 dev = stdio_get_by_name(name);
729 #ifdef CONFIG_VIDCONSOLE_AS_LCD
730 if (!dev && !strcmp(name, "lcd"))
731 dev = stdio_get_by_name("vidconsole");
732 #endif
733
734 if (dev && (dev->flags & flags))
735 return dev;
736
737 return NULL;
738 }
739
console_assign(int file,const char * devname)740 int console_assign(int file, const char *devname)
741 {
742 int flag;
743 struct stdio_dev *dev;
744
745 /* Check for valid file */
746 switch (file) {
747 case stdin:
748 flag = DEV_FLAGS_INPUT;
749 break;
750 case stdout:
751 case stderr:
752 flag = DEV_FLAGS_OUTPUT;
753 break;
754 default:
755 return -1;
756 }
757
758 /* Check for valid device name */
759
760 dev = search_device(flag, devname);
761
762 if (dev)
763 return console_setfile(file, dev);
764
765 return -1;
766 }
767
console_update_silent(void)768 static void console_update_silent(void)
769 {
770 #ifdef CONFIG_SILENT_CONSOLE
771 if (env_get("silent") != NULL) {
772 printf("U-Boot: enable silent console\n");
773 gd->flags |= GD_FLG_SILENT;
774 } else {
775 gd->flags &= ~GD_FLG_SILENT;
776 }
777 #endif
778 }
779
console_announce_r(void)780 int console_announce_r(void)
781 {
782 #if !CONFIG_IS_ENABLED(PRE_CONSOLE_BUFFER)
783 char buf[DISPLAY_OPTIONS_BANNER_LENGTH];
784
785 display_options_get_banner(false, buf, sizeof(buf));
786
787 console_puts_noserial(stdout, buf);
788 #endif
789
790 return 0;
791 }
792
793 /* Called before relocation - use serial functions */
console_init_f(void)794 int console_init_f(void)
795 {
796 gd->have_console = 1;
797
798 console_update_silent();
799
800 print_pre_console_buffer(PRE_CONSOLE_FLUSHPOINT1_SERIAL);
801
802 return 0;
803 }
804
stdio_print_current_devices(void)805 void stdio_print_current_devices(void)
806 {
807 /* Print information */
808 puts("In: ");
809 if (stdio_devices[stdin] == NULL) {
810 puts("No input devices available!\n");
811 } else {
812 printf ("%s\n", stdio_devices[stdin]->name);
813 }
814
815 puts("Out: ");
816 if (stdio_devices[stdout] == NULL) {
817 puts("No output devices available!\n");
818 } else {
819 printf ("%s\n", stdio_devices[stdout]->name);
820 }
821
822 puts("Err: ");
823 if (stdio_devices[stderr] == NULL) {
824 puts("No error devices available!\n");
825 } else {
826 printf ("%s\n", stdio_devices[stderr]->name);
827 }
828 }
829
830 #if CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV)
831 /* Called after the relocation - use desired console functions */
console_init_r(void)832 int console_init_r(void)
833 {
834 char *stdinname, *stdoutname, *stderrname;
835 struct stdio_dev *inputdev = NULL, *outputdev = NULL, *errdev = NULL;
836 #ifdef CONFIG_SYS_CONSOLE_ENV_OVERWRITE
837 int i;
838 #endif /* CONFIG_SYS_CONSOLE_ENV_OVERWRITE */
839 #if CONFIG_IS_ENABLED(CONSOLE_MUX)
840 int iomux_err = 0;
841 #endif
842
843 /* set default handlers at first */
844 gd->jt->getc = serial_getc;
845 gd->jt->tstc = serial_tstc;
846 gd->jt->putc = serial_putc;
847 gd->jt->puts = serial_puts;
848 gd->jt->printf = serial_printf;
849
850 /* stdin stdout and stderr are in environment */
851 /* scan for it */
852 stdinname = env_get("stdin");
853 stdoutname = env_get("stdout");
854 stderrname = env_get("stderr");
855
856 if (OVERWRITE_CONSOLE == 0) { /* if not overwritten by config switch */
857 inputdev = search_device(DEV_FLAGS_INPUT, stdinname);
858 outputdev = search_device(DEV_FLAGS_OUTPUT, stdoutname);
859 errdev = search_device(DEV_FLAGS_OUTPUT, stderrname);
860 #if CONFIG_IS_ENABLED(CONSOLE_MUX)
861 iomux_err = iomux_doenv(stdin, stdinname);
862 iomux_err += iomux_doenv(stdout, stdoutname);
863 iomux_err += iomux_doenv(stderr, stderrname);
864 if (!iomux_err)
865 /* Successful, so skip all the code below. */
866 goto done;
867 #endif
868 }
869 /* if the devices are overwritten or not found, use default device */
870 if (inputdev == NULL) {
871 inputdev = search_device(DEV_FLAGS_INPUT, "serial");
872 }
873 if (outputdev == NULL) {
874 outputdev = search_device(DEV_FLAGS_OUTPUT, "serial");
875 }
876 if (errdev == NULL) {
877 errdev = search_device(DEV_FLAGS_OUTPUT, "serial");
878 }
879 /* Initializes output console first */
880 if (outputdev != NULL) {
881 /* need to set a console if not done above. */
882 console_doenv(stdout, outputdev);
883 }
884 if (errdev != NULL) {
885 /* need to set a console if not done above. */
886 console_doenv(stderr, errdev);
887 }
888 if (inputdev != NULL) {
889 /* need to set a console if not done above. */
890 console_doenv(stdin, inputdev);
891 }
892
893 #if CONFIG_IS_ENABLED(CONSOLE_MUX)
894 done:
895 #endif
896
897 #ifndef CONFIG_SYS_CONSOLE_INFO_QUIET
898 stdio_print_current_devices();
899 #endif /* CONFIG_SYS_CONSOLE_INFO_QUIET */
900 #ifdef CONFIG_VIDCONSOLE_AS_LCD
901 if (strstr(stdoutname, "lcd"))
902 printf("Warning: Please change 'lcd' to 'vidconsole' in stdout/stderr environment vars\n");
903 #endif
904
905 #ifdef CONFIG_SYS_CONSOLE_ENV_OVERWRITE
906 /* set the environment variables (will overwrite previous env settings) */
907 for (i = 0; i < 3; i++) {
908 env_set(stdio_names[i], stdio_devices[i]->name);
909 }
910 #endif /* CONFIG_SYS_CONSOLE_ENV_OVERWRITE */
911
912 gd->flags |= GD_FLG_DEVINIT; /* device initialization completed */
913
914 #if 0
915 /* If nothing usable installed, use only the initial console */
916 if ((stdio_devices[stdin] == NULL) && (stdio_devices[stdout] == NULL))
917 return 0;
918 #endif
919 print_pre_console_buffer(PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL);
920 return 0;
921 }
922
923 #else /* !CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV) */
924
925 /* Called after the relocation - use desired console functions */
console_init_r(void)926 int console_init_r(void)
927 {
928 struct stdio_dev *inputdev = NULL, *outputdev = NULL;
929 int i;
930 struct list_head *list = stdio_get_list();
931 struct list_head *pos;
932 struct stdio_dev *dev;
933
934 console_update_silent();
935
936 #ifdef CONFIG_SPLASH_SCREEN
937 /*
938 * suppress all output if splash screen is enabled and we have
939 * a bmp to display. We redirect the output from frame buffer
940 * console to serial console in this case or suppress it if
941 * "silent" mode was requested.
942 */
943 if (env_get("splashimage") != NULL) {
944 if (!(gd->flags & GD_FLG_SILENT))
945 outputdev = search_device (DEV_FLAGS_OUTPUT, "serial");
946 }
947 #endif
948
949 /* Scan devices looking for input and output devices */
950 list_for_each(pos, list) {
951 dev = list_entry(pos, struct stdio_dev, list);
952
953 if ((dev->flags & DEV_FLAGS_INPUT) && (inputdev == NULL)) {
954 inputdev = dev;
955 }
956 if ((dev->flags & DEV_FLAGS_OUTPUT) && (outputdev == NULL)) {
957 outputdev = dev;
958 }
959 if(inputdev && outputdev)
960 break;
961 }
962
963 /* Initializes output console first */
964 if (outputdev != NULL) {
965 console_setfile(stdout, outputdev);
966 console_setfile(stderr, outputdev);
967 #if CONFIG_IS_ENABLED(CONSOLE_MUX)
968 console_devices[stdout][0] = outputdev;
969 console_devices[stderr][0] = outputdev;
970 #endif
971 }
972
973 /* Initializes input console */
974 if (inputdev != NULL) {
975 console_setfile(stdin, inputdev);
976 #if CONFIG_IS_ENABLED(CONSOLE_MUX)
977 console_devices[stdin][0] = inputdev;
978 #endif
979 }
980
981 #ifndef CONFIG_SYS_CONSOLE_INFO_QUIET
982 stdio_print_current_devices();
983 #endif /* CONFIG_SYS_CONSOLE_INFO_QUIET */
984
985 /* Setting environment variables */
986 for (i = 0; i < 3; i++) {
987 env_set(stdio_names[i], stdio_devices[i]->name);
988 }
989
990 gd->flags |= GD_FLG_DEVINIT; /* device initialization completed */
991
992 #if 0
993 /* If nothing usable installed, use only the initial console */
994 if ((stdio_devices[stdin] == NULL) && (stdio_devices[stdout] == NULL))
995 return 0;
996 #endif
997 print_pre_console_buffer(PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL);
998 return 0;
999 }
1000
1001 #endif /* CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV) */
1002