]> git.ipfire.org Git - people/ms/u-boot.git/blame - common/console.c
board: ti: beagle_x15: added USB initializtion code
[people/ms/u-boot.git] / common / console.c
CommitLineData
47d1a6e1
WD
1/*
2 * (C) Copyright 2000
3 * Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio@tin.it
4 *
1a459660 5 * SPDX-License-Identifier: GPL-2.0+
47d1a6e1
WD
6 */
7
8#include <common.h>
d6ea5307 9#include <debug_uart.h>
47d1a6e1 10#include <stdarg.h>
482f4691 11#include <iomux.h>
47d1a6e1 12#include <malloc.h>
91b136c7 13#include <os.h>
849d5d9c 14#include <serial.h>
52cb4d4f 15#include <stdio_dev.h>
27b207fd 16#include <exports.h>
849d5d9c 17#include <environment.h>
47d1a6e1 18
d87080b7
WD
19DECLARE_GLOBAL_DATA_PTR;
20
849d5d9c
JH
21static int on_console(const char *name, const char *value, enum env_op op,
22 int flags)
23{
24 int console = -1;
25
26 /* Check for console redirection */
27 if (strcmp(name, "stdin") == 0)
28 console = stdin;
29 else if (strcmp(name, "stdout") == 0)
30 console = stdout;
31 else if (strcmp(name, "stderr") == 0)
32 console = stderr;
33
34 /* if not actually setting a console variable, we don't care */
35 if (console == -1 || (gd->flags & GD_FLG_DEVINIT) == 0)
36 return 0;
37
38 switch (op) {
39 case env_op_create:
40 case env_op_overwrite:
41
42#ifdef CONFIG_CONSOLE_MUX
43 if (iomux_doenv(console, value))
44 return 1;
45#else
46 /* Try assigning specified device */
47 if (console_assign(console, value) < 0)
48 return 1;
49#endif /* CONFIG_CONSOLE_MUX */
50 return 0;
51
52 case env_op_delete:
53 if ((flags & H_FORCE) == 0)
54 printf("Can't delete \"%s\"\n", name);
55 return 1;
56
57 default:
58 return 0;
59 }
60}
61U_BOOT_ENV_CALLBACK(console, on_console);
62
e080d545
JH
63#ifdef CONFIG_SILENT_CONSOLE
64static int on_silent(const char *name, const char *value, enum env_op op,
65 int flags)
66{
67#ifndef CONFIG_SILENT_CONSOLE_UPDATE_ON_SET
68 if (flags & H_INTERACTIVE)
69 return 0;
70#endif
71#ifndef CONFIG_SILENT_CONSOLE_UPDATE_ON_RELOC
72 if ((flags & H_INTERACTIVE) == 0)
73 return 0;
74#endif
75
76 if (value != NULL)
77 gd->flags |= GD_FLG_SILENT;
78 else
79 gd->flags &= ~GD_FLG_SILENT;
80
81 return 0;
82}
83U_BOOT_ENV_CALLBACK(silent, on_silent);
84#endif
85
6d0f6bcf 86#ifdef CONFIG_SYS_CONSOLE_IS_IN_ENV
47d1a6e1
WD
87/*
88 * if overwrite_console returns 1, the stdin, stderr and stdout
89 * are switched to the serial port, else the settings in the
90 * environment are used
91 */
6d0f6bcf 92#ifdef CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE
ec6f1499
JCPV
93extern int overwrite_console(void);
94#define OVERWRITE_CONSOLE overwrite_console()
47d1a6e1 95#else
83e40ba7 96#define OVERWRITE_CONSOLE 0
6d0f6bcf 97#endif /* CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE */
47d1a6e1 98
6d0f6bcf 99#endif /* CONFIG_SYS_CONSOLE_IS_IN_ENV */
47d1a6e1 100
52cb4d4f 101static int console_setfile(int file, struct stdio_dev * dev)
47d1a6e1
WD
102{
103 int error = 0;
104
105 if (dev == NULL)
106 return -1;
107
108 switch (file) {
109 case stdin:
110 case stdout:
111 case stderr:
112 /* Start new device */
113 if (dev->start) {
709ea543 114 error = dev->start(dev);
47d1a6e1
WD
115 /* If it's not started dont use it */
116 if (error < 0)
117 break;
118 }
119
120 /* Assign the new device (leaving the existing one started) */
121 stdio_devices[file] = dev;
122
123 /*
124 * Update monitor functions
125 * (to use the console stuff by other applications)
126 */
127 switch (file) {
128 case stdin:
49cad547
MD
129 gd->jt->getc = getc;
130 gd->jt->tstc = tstc;
47d1a6e1
WD
131 break;
132 case stdout:
49cad547
MD
133 gd->jt->putc = putc;
134 gd->jt->puts = puts;
135 gd->jt->printf = printf;
47d1a6e1
WD
136 break;
137 }
138 break;
139
140 default: /* Invalid file ID */
141 error = -1;
142 }
143 return error;
144}
145
16a28ef2
GJ
146#if defined(CONFIG_CONSOLE_MUX)
147/** Console I/O multiplexing *******************************************/
148
52cb4d4f
JCPV
149static struct stdio_dev *tstcdev;
150struct stdio_dev **console_devices[MAX_FILES];
16a28ef2
GJ
151int cd_count[MAX_FILES];
152
153/*
154 * This depends on tstc() always being called before getc().
155 * This is guaranteed to be true because this routine is called
156 * only from fgetc() which assures it.
157 * No attempt is made to demultiplex multiple input sources.
158 */
5f032010 159static int console_getc(int file)
16a28ef2
GJ
160{
161 unsigned char ret;
162
163 /* This is never called with testcdev == NULL */
709ea543 164 ret = tstcdev->getc(tstcdev);
16a28ef2
GJ
165 tstcdev = NULL;
166 return ret;
167}
168
5f032010 169static int console_tstc(int file)
16a28ef2
GJ
170{
171 int i, ret;
52cb4d4f 172 struct stdio_dev *dev;
16a28ef2
GJ
173
174 disable_ctrlc(1);
175 for (i = 0; i < cd_count[file]; i++) {
176 dev = console_devices[file][i];
177 if (dev->tstc != NULL) {
709ea543 178 ret = dev->tstc(dev);
16a28ef2
GJ
179 if (ret > 0) {
180 tstcdev = dev;
181 disable_ctrlc(0);
182 return ret;
183 }
184 }
185 }
186 disable_ctrlc(0);
187
188 return 0;
189}
190
5f032010 191static void console_putc(int file, const char c)
16a28ef2
GJ
192{
193 int i;
52cb4d4f 194 struct stdio_dev *dev;
16a28ef2
GJ
195
196 for (i = 0; i < cd_count[file]; i++) {
197 dev = console_devices[file][i];
198 if (dev->putc != NULL)
709ea543 199 dev->putc(dev, c);
16a28ef2
GJ
200 }
201}
202
27669667 203#ifdef CONFIG_PRE_CONSOLE_BUFFER
a8552c7c 204static void console_puts_noserial(int file, const char *s)
27669667
SS
205{
206 int i;
207 struct stdio_dev *dev;
208
209 for (i = 0; i < cd_count[file]; i++) {
210 dev = console_devices[file][i];
a8552c7c
HG
211 if (dev->puts != NULL && strcmp(dev->name, "serial") != 0)
212 dev->puts(dev, s);
27669667
SS
213 }
214}
215#endif
216
5f032010 217static void console_puts(int file, const char *s)
16a28ef2
GJ
218{
219 int i;
52cb4d4f 220 struct stdio_dev *dev;
16a28ef2
GJ
221
222 for (i = 0; i < cd_count[file]; i++) {
223 dev = console_devices[file][i];
224 if (dev->puts != NULL)
709ea543 225 dev->puts(dev, s);
16a28ef2
GJ
226 }
227}
5f032010
JCPV
228
229static inline void console_printdevs(int file)
230{
231 iomux_printdevs(file);
232}
233
52cb4d4f 234static inline void console_doenv(int file, struct stdio_dev *dev)
5f032010
JCPV
235{
236 iomux_doenv(file, dev->name);
237}
238#else
239static inline int console_getc(int file)
240{
709ea543 241 return stdio_devices[file]->getc(stdio_devices[file]);
5f032010
JCPV
242}
243
244static inline int console_tstc(int file)
245{
709ea543 246 return stdio_devices[file]->tstc(stdio_devices[file]);
5f032010
JCPV
247}
248
249static inline void console_putc(int file, const char c)
250{
709ea543 251 stdio_devices[file]->putc(stdio_devices[file], c);
5f032010
JCPV
252}
253
27669667 254#ifdef CONFIG_PRE_CONSOLE_BUFFER
a8552c7c 255static inline void console_puts_noserial(int file, const char *s)
27669667
SS
256{
257 if (strcmp(stdio_devices[file]->name, "serial") != 0)
a8552c7c 258 stdio_devices[file]->puts(stdio_devices[file], s);
27669667
SS
259}
260#endif
261
5f032010
JCPV
262static inline void console_puts(int file, const char *s)
263{
709ea543 264 stdio_devices[file]->puts(stdio_devices[file], s);
5f032010
JCPV
265}
266
267static inline void console_printdevs(int file)
268{
269 printf("%s\n", stdio_devices[file]->name);
270}
271
52cb4d4f 272static inline void console_doenv(int file, struct stdio_dev *dev)
5f032010
JCPV
273{
274 console_setfile(file, dev);
275}
16a28ef2
GJ
276#endif /* defined(CONFIG_CONSOLE_MUX) */
277
47d1a6e1
WD
278/** U-Boot INITIAL CONSOLE-NOT COMPATIBLE FUNCTIONS *************************/
279
d9c27253 280int serial_printf(const char *fmt, ...)
47d1a6e1
WD
281{
282 va_list args;
283 uint i;
6d0f6bcf 284 char printbuffer[CONFIG_SYS_PBSIZE];
47d1a6e1 285
ec6f1499 286 va_start(args, fmt);
47d1a6e1
WD
287
288 /* For this to work, printbuffer must be larger than
289 * anything we ever want to print.
290 */
068af6f8 291 i = vscnprintf(printbuffer, sizeof(printbuffer), fmt, args);
ec6f1499 292 va_end(args);
47d1a6e1 293
ec6f1499 294 serial_puts(printbuffer);
d9c27253 295 return i;
47d1a6e1
WD
296}
297
ec6f1499 298int fgetc(int file)
47d1a6e1 299{
16a28ef2
GJ
300 if (file < MAX_FILES) {
301#if defined(CONFIG_CONSOLE_MUX)
302 /*
303 * Effectively poll for input wherever it may be available.
304 */
305 for (;;) {
306 /*
307 * Upper layer may have already called tstc() so
308 * check for that first.
309 */
310 if (tstcdev != NULL)
5f032010
JCPV
311 return console_getc(file);
312 console_tstc(file);
16a28ef2
GJ
313#ifdef CONFIG_WATCHDOG
314 /*
315 * If the watchdog must be rate-limited then it should
316 * already be handled in board-specific code.
317 */
318 udelay(1);
319#endif
320 }
321#else
5f032010 322 return console_getc(file);
16a28ef2
GJ
323#endif
324 }
47d1a6e1
WD
325
326 return -1;
327}
328
ec6f1499 329int ftstc(int file)
47d1a6e1
WD
330{
331 if (file < MAX_FILES)
5f032010 332 return console_tstc(file);
47d1a6e1
WD
333
334 return -1;
335}
336
ec6f1499 337void fputc(int file, const char c)
47d1a6e1
WD
338{
339 if (file < MAX_FILES)
5f032010 340 console_putc(file, c);
47d1a6e1
WD
341}
342
ec6f1499 343void fputs(int file, const char *s)
47d1a6e1
WD
344{
345 if (file < MAX_FILES)
5f032010 346 console_puts(file, s);
47d1a6e1
WD
347}
348
d9c27253 349int fprintf(int file, const char *fmt, ...)
47d1a6e1
WD
350{
351 va_list args;
352 uint i;
6d0f6bcf 353 char printbuffer[CONFIG_SYS_PBSIZE];
47d1a6e1 354
ec6f1499 355 va_start(args, fmt);
47d1a6e1
WD
356
357 /* For this to work, printbuffer must be larger than
358 * anything we ever want to print.
359 */
068af6f8 360 i = vscnprintf(printbuffer, sizeof(printbuffer), fmt, args);
ec6f1499 361 va_end(args);
47d1a6e1
WD
362
363 /* Send to desired file */
ec6f1499 364 fputs(file, printbuffer);
d9c27253 365 return i;
47d1a6e1
WD
366}
367
368/** U-Boot INITIAL CONSOLE-COMPATIBLE FUNCTION *****************************/
369
ec6f1499 370int getc(void)
47d1a6e1 371{
f5c3ba79
MJ
372#ifdef CONFIG_DISABLE_CONSOLE
373 if (gd->flags & GD_FLG_DISABLE_CONSOLE)
374 return 0;
375#endif
376
e3e454cd
GR
377 if (!gd->have_console)
378 return 0;
379
47d1a6e1
WD
380 if (gd->flags & GD_FLG_DEVINIT) {
381 /* Get from the standard input */
ec6f1499 382 return fgetc(stdin);
47d1a6e1
WD
383 }
384
385 /* Send directly to the handler */
ec6f1499 386 return serial_getc();
47d1a6e1
WD
387}
388
ec6f1499 389int tstc(void)
47d1a6e1 390{
f5c3ba79
MJ
391#ifdef CONFIG_DISABLE_CONSOLE
392 if (gd->flags & GD_FLG_DISABLE_CONSOLE)
393 return 0;
394#endif
395
e3e454cd
GR
396 if (!gd->have_console)
397 return 0;
398
47d1a6e1
WD
399 if (gd->flags & GD_FLG_DEVINIT) {
400 /* Test the standard input */
ec6f1499 401 return ftstc(stdin);
47d1a6e1
WD
402 }
403
404 /* Send directly to the handler */
ec6f1499 405 return serial_tstc();
47d1a6e1
WD
406}
407
27669667
SS
408#define PRE_CONSOLE_FLUSHPOINT1_SERIAL 0
409#define PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL 1
410
3fa4977a 411#ifdef CONFIG_PRE_CONSOLE_BUFFER
9558b48a
GR
412#define CIRC_BUF_IDX(idx) ((idx) % (unsigned long)CONFIG_PRE_CON_BUF_SZ)
413
414static void pre_console_putc(const char c)
415{
416 char *buffer = (char *)CONFIG_PRE_CON_BUF_ADDR;
417
418 buffer[CIRC_BUF_IDX(gd->precon_buf_idx++)] = c;
419}
420
421static void pre_console_puts(const char *s)
422{
423 while (*s)
424 pre_console_putc(*s++);
425}
426
27669667 427static void print_pre_console_buffer(int flushpoint)
9558b48a 428{
a8552c7c
HG
429 unsigned long in = 0, out = 0;
430 char *buf_in = (char *)CONFIG_PRE_CON_BUF_ADDR;
431 char buf_out[CONFIG_PRE_CON_BUF_SZ + 1];
9558b48a
GR
432
433 if (gd->precon_buf_idx > CONFIG_PRE_CON_BUF_SZ)
a8552c7c 434 in = gd->precon_buf_idx - CONFIG_PRE_CON_BUF_SZ;
9558b48a 435
a8552c7c
HG
436 while (in < gd->precon_buf_idx)
437 buf_out[out++] = buf_in[CIRC_BUF_IDX(in++)];
438
439 buf_out[out] = 0;
440
441 switch (flushpoint) {
442 case PRE_CONSOLE_FLUSHPOINT1_SERIAL:
443 puts(buf_out);
444 break;
445 case PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL:
446 console_puts_noserial(stdout, buf_out);
447 break;
448 }
9558b48a
GR
449}
450#else
451static inline void pre_console_putc(const char c) {}
452static inline void pre_console_puts(const char *s) {}
27669667 453static inline void print_pre_console_buffer(int flushpoint) {}
9558b48a
GR
454#endif
455
ec6f1499 456void putc(const char c)
47d1a6e1 457{
91b136c7 458#ifdef CONFIG_SANDBOX
da229e4e 459 /* sandbox can send characters to stdout before it has a console */
093f79ab 460 if (!gd || !(gd->flags & GD_FLG_SERIAL_READY)) {
91b136c7
SG
461 os_putc(c);
462 return;
463 }
464#endif
d6ea5307
SG
465#ifdef CONFIG_DEBUG_UART
466 /* if we don't have a console yet, use the debug UART */
467 if (!gd || !(gd->flags & GD_FLG_SERIAL_READY)) {
468 printch(c);
469 return;
470 }
471#endif
a6cccaea
WD
472#ifdef CONFIG_SILENT_CONSOLE
473 if (gd->flags & GD_FLG_SILENT)
f6e20fc6 474 return;
a6cccaea
WD
475#endif
476
f5c3ba79
MJ
477#ifdef CONFIG_DISABLE_CONSOLE
478 if (gd->flags & GD_FLG_DISABLE_CONSOLE)
479 return;
480#endif
481
e3e454cd 482 if (!gd->have_console)
9558b48a 483 return pre_console_putc(c);
e3e454cd 484
47d1a6e1
WD
485 if (gd->flags & GD_FLG_DEVINIT) {
486 /* Send to the standard output */
ec6f1499 487 fputc(stdout, c);
47d1a6e1
WD
488 } else {
489 /* Send directly to the handler */
27669667 490 pre_console_putc(c);
ec6f1499 491 serial_putc(c);
47d1a6e1
WD
492 }
493}
494
ec6f1499 495void puts(const char *s)
47d1a6e1 496{
91b136c7 497#ifdef CONFIG_SANDBOX
093f79ab 498 if (!gd || !(gd->flags & GD_FLG_SERIAL_READY)) {
91b136c7
SG
499 os_puts(s);
500 return;
501 }
502#endif
d6ea5307
SG
503#ifdef CONFIG_DEBUG_UART
504 if (!gd || !(gd->flags & GD_FLG_SERIAL_READY)) {
505 while (*s) {
506 int ch = *s++;
91b136c7 507
d6ea5307
SG
508 printch(ch);
509 if (ch == '\n')
510 printch('\r');
511 }
512 return;
513 }
514#endif
a6cccaea
WD
515#ifdef CONFIG_SILENT_CONSOLE
516 if (gd->flags & GD_FLG_SILENT)
517 return;
518#endif
519
f5c3ba79
MJ
520#ifdef CONFIG_DISABLE_CONSOLE
521 if (gd->flags & GD_FLG_DISABLE_CONSOLE)
522 return;
523#endif
524
e3e454cd 525 if (!gd->have_console)
9558b48a 526 return pre_console_puts(s);
e3e454cd 527
47d1a6e1
WD
528 if (gd->flags & GD_FLG_DEVINIT) {
529 /* Send to the standard output */
ec6f1499 530 fputs(stdout, s);
47d1a6e1
WD
531 } else {
532 /* Send directly to the handler */
27669667 533 pre_console_puts(s);
ec6f1499 534 serial_puts(s);
47d1a6e1
WD
535 }
536}
537
d9c27253 538int printf(const char *fmt, ...)
47d1a6e1
WD
539{
540 va_list args;
541 uint i;
6d0f6bcf 542 char printbuffer[CONFIG_SYS_PBSIZE];
47d1a6e1 543
ec6f1499 544 va_start(args, fmt);
47d1a6e1
WD
545
546 /* For this to work, printbuffer must be larger than
547 * anything we ever want to print.
548 */
068af6f8 549 i = vscnprintf(printbuffer, sizeof(printbuffer), fmt, args);
ec6f1499 550 va_end(args);
47d1a6e1
WD
551
552 /* Print the string */
ec6f1499 553 puts(printbuffer);
d9c27253 554 return i;
47d1a6e1
WD
555}
556
d9c27253 557int vprintf(const char *fmt, va_list args)
6dd652fa
WD
558{
559 uint i;
6d0f6bcf 560 char printbuffer[CONFIG_SYS_PBSIZE];
6dd652fa 561
7793ac96 562#if defined(CONFIG_PRE_CONSOLE_BUFFER) && !defined(CONFIG_SANDBOX)
e3e454cd
GR
563 if (!gd->have_console)
564 return 0;
9558b48a 565#endif
e3e454cd 566
6dd652fa
WD
567 /* For this to work, printbuffer must be larger than
568 * anything we ever want to print.
569 */
068af6f8 570 i = vscnprintf(printbuffer, sizeof(printbuffer), fmt, args);
6dd652fa
WD
571
572 /* Print the string */
ec6f1499 573 puts(printbuffer);
d9c27253 574 return i;
6dd652fa
WD
575}
576
47d1a6e1
WD
577/* test if ctrl-c was pressed */
578static int ctrlc_disabled = 0; /* see disable_ctrl() */
579static int ctrlc_was_pressed = 0;
ec6f1499 580int ctrlc(void)
47d1a6e1 581{
8969ea3e 582#ifndef CONFIG_SANDBOX
47d1a6e1 583 if (!ctrlc_disabled && gd->have_console) {
ec6f1499
JCPV
584 if (tstc()) {
585 switch (getc()) {
47d1a6e1
WD
586 case 0x03: /* ^C - Control C */
587 ctrlc_was_pressed = 1;
588 return 1;
589 default:
590 break;
591 }
592 }
593 }
8969ea3e
SG
594#endif
595
47d1a6e1
WD
596 return 0;
597}
a5dffa4b
PA
598/* Reads user's confirmation.
599 Returns 1 if user's input is "y", "Y", "yes" or "YES"
600*/
601int confirm_yesno(void)
602{
603 int i;
604 char str_input[5];
605
606 /* Flush input */
607 while (tstc())
608 getc();
609 i = 0;
610 while (i < sizeof(str_input)) {
611 str_input[i] = getc();
612 putc(str_input[i]);
613 if (str_input[i] == '\r')
614 break;
615 i++;
616 }
617 putc('\n');
618 if (strncmp(str_input, "y\r", 2) == 0 ||
619 strncmp(str_input, "Y\r", 2) == 0 ||
620 strncmp(str_input, "yes\r", 4) == 0 ||
621 strncmp(str_input, "YES\r", 4) == 0)
622 return 1;
623 return 0;
624}
47d1a6e1
WD
625/* pass 1 to disable ctrlc() checking, 0 to enable.
626 * returns previous state
627 */
ec6f1499 628int disable_ctrlc(int disable)
47d1a6e1
WD
629{
630 int prev = ctrlc_disabled; /* save previous state */
631
632 ctrlc_disabled = disable;
633 return prev;
634}
635
636int had_ctrlc (void)
637{
638 return ctrlc_was_pressed;
639}
640
ec6f1499 641void clear_ctrlc(void)
47d1a6e1
WD
642{
643 ctrlc_was_pressed = 0;
644}
645
646#ifdef CONFIG_MODEM_SUPPORT_DEBUG
647char screen[1024];
648char *cursor = screen;
649int once = 0;
650inline void dbg(const char *fmt, ...)
651{
652 va_list args;
653 uint i;
6d0f6bcf 654 char printbuffer[CONFIG_SYS_PBSIZE];
47d1a6e1
WD
655
656 if (!once) {
657 memset(screen, 0, sizeof(screen));
658 once++;
659 }
660
661 va_start(args, fmt);
662
663 /* For this to work, printbuffer must be larger than
664 * anything we ever want to print.
665 */
068af6f8 666 i = vsnprintf(printbuffer, sizeof(printbuffer), fmt, args);
47d1a6e1
WD
667 va_end(args);
668
ec6f1499
JCPV
669 if ((screen + sizeof(screen) - 1 - cursor)
670 < strlen(printbuffer) + 1) {
47d1a6e1
WD
671 memset(screen, 0, sizeof(screen));
672 cursor = screen;
673 }
674 sprintf(cursor, printbuffer);
675 cursor += strlen(printbuffer);
676
677}
678#else
482f4691 679static inline void dbg(const char *fmt, ...)
47d1a6e1
WD
680{
681}
682#endif
683
684/** U-Boot INIT FUNCTIONS *************************************************/
685
d7be3056 686struct stdio_dev *search_device(int flags, const char *name)
c1de7a6d 687{
52cb4d4f 688 struct stdio_dev *dev;
c1de7a6d 689
52cb4d4f 690 dev = stdio_get_by_name(name);
c1de7a6d 691
ec6f1499 692 if (dev && (dev->flags & flags))
c1de7a6d
JCPV
693 return dev;
694
695 return NULL;
696}
697
d7be3056 698int console_assign(int file, const char *devname)
47d1a6e1 699{
c1de7a6d 700 int flag;
52cb4d4f 701 struct stdio_dev *dev;
47d1a6e1
WD
702
703 /* Check for valid file */
704 switch (file) {
705 case stdin:
706 flag = DEV_FLAGS_INPUT;
707 break;
708 case stdout:
709 case stderr:
710 flag = DEV_FLAGS_OUTPUT;
711 break;
712 default:
713 return -1;
714 }
715
716 /* Check for valid device name */
717
c1de7a6d 718 dev = search_device(flag, devname);
47d1a6e1 719
ec6f1499
JCPV
720 if (dev)
721 return console_setfile(file, dev);
47d1a6e1
WD
722
723 return -1;
724}
725
726/* Called before relocation - use serial functions */
ec6f1499 727int console_init_f(void)
47d1a6e1 728{
47d1a6e1 729 gd->have_console = 1;
f72da340
WD
730
731#ifdef CONFIG_SILENT_CONSOLE
732 if (getenv("silent") != NULL)
733 gd->flags |= GD_FLG_SILENT;
734#endif
735
27669667 736 print_pre_console_buffer(PRE_CONSOLE_FLUSHPOINT1_SERIAL);
9558b48a 737
ec6f1499 738 return 0;
47d1a6e1
WD
739}
740
7e3be7cf
JCPV
741void stdio_print_current_devices(void)
742{
7e3be7cf
JCPV
743 /* Print information */
744 puts("In: ");
745 if (stdio_devices[stdin] == NULL) {
746 puts("No input devices available!\n");
747 } else {
748 printf ("%s\n", stdio_devices[stdin]->name);
749 }
750
751 puts("Out: ");
752 if (stdio_devices[stdout] == NULL) {
753 puts("No output devices available!\n");
754 } else {
755 printf ("%s\n", stdio_devices[stdout]->name);
756 }
757
758 puts("Err: ");
759 if (stdio_devices[stderr] == NULL) {
760 puts("No error devices available!\n");
761 } else {
762 printf ("%s\n", stdio_devices[stderr]->name);
763 }
7e3be7cf
JCPV
764}
765
6d0f6bcf 766#ifdef CONFIG_SYS_CONSOLE_IS_IN_ENV
47d1a6e1 767/* Called after the relocation - use desired console functions */
ec6f1499 768int console_init_r(void)
47d1a6e1
WD
769{
770 char *stdinname, *stdoutname, *stderrname;
52cb4d4f 771 struct stdio_dev *inputdev = NULL, *outputdev = NULL, *errdev = NULL;
6d0f6bcf 772#ifdef CONFIG_SYS_CONSOLE_ENV_OVERWRITE
6e592385 773 int i;
6d0f6bcf 774#endif /* CONFIG_SYS_CONSOLE_ENV_OVERWRITE */
16a28ef2
GJ
775#ifdef CONFIG_CONSOLE_MUX
776 int iomux_err = 0;
777#endif
47d1a6e1
WD
778
779 /* set default handlers at first */
49cad547
MD
780 gd->jt->getc = serial_getc;
781 gd->jt->tstc = serial_tstc;
782 gd->jt->putc = serial_putc;
783 gd->jt->puts = serial_puts;
784 gd->jt->printf = serial_printf;
47d1a6e1
WD
785
786 /* stdin stdout and stderr are in environment */
787 /* scan for it */
ec6f1499
JCPV
788 stdinname = getenv("stdin");
789 stdoutname = getenv("stdout");
790 stderrname = getenv("stderr");
47d1a6e1 791
53677ef1 792 if (OVERWRITE_CONSOLE == 0) { /* if not overwritten by config switch */
ec6f1499
JCPV
793 inputdev = search_device(DEV_FLAGS_INPUT, stdinname);
794 outputdev = search_device(DEV_FLAGS_OUTPUT, stdoutname);
795 errdev = search_device(DEV_FLAGS_OUTPUT, stderrname);
16a28ef2
GJ
796#ifdef CONFIG_CONSOLE_MUX
797 iomux_err = iomux_doenv(stdin, stdinname);
798 iomux_err += iomux_doenv(stdout, stdoutname);
799 iomux_err += iomux_doenv(stderr, stderrname);
800 if (!iomux_err)
801 /* Successful, so skip all the code below. */
802 goto done;
803#endif
47d1a6e1
WD
804 }
805 /* if the devices are overwritten or not found, use default device */
806 if (inputdev == NULL) {
ec6f1499 807 inputdev = search_device(DEV_FLAGS_INPUT, "serial");
47d1a6e1
WD
808 }
809 if (outputdev == NULL) {
ec6f1499 810 outputdev = search_device(DEV_FLAGS_OUTPUT, "serial");
47d1a6e1
WD
811 }
812 if (errdev == NULL) {
ec6f1499 813 errdev = search_device(DEV_FLAGS_OUTPUT, "serial");
47d1a6e1
WD
814 }
815 /* Initializes output console first */
816 if (outputdev != NULL) {
16a28ef2 817 /* need to set a console if not done above. */
5f032010 818 console_doenv(stdout, outputdev);
47d1a6e1
WD
819 }
820 if (errdev != NULL) {
16a28ef2 821 /* need to set a console if not done above. */
5f032010 822 console_doenv(stderr, errdev);
47d1a6e1
WD
823 }
824 if (inputdev != NULL) {
16a28ef2 825 /* need to set a console if not done above. */
5f032010 826 console_doenv(stdin, inputdev);
47d1a6e1
WD
827 }
828
16a28ef2
GJ
829#ifdef CONFIG_CONSOLE_MUX
830done:
831#endif
832
78c112c9 833#ifndef CONFIG_SYS_CONSOLE_INFO_QUIET
7e3be7cf 834 stdio_print_current_devices();
78c112c9 835#endif /* CONFIG_SYS_CONSOLE_INFO_QUIET */
47d1a6e1 836
6d0f6bcf 837#ifdef CONFIG_SYS_CONSOLE_ENV_OVERWRITE
47d1a6e1
WD
838 /* set the environment variables (will overwrite previous env settings) */
839 for (i = 0; i < 3; i++) {
ec6f1499 840 setenv(stdio_names[i], stdio_devices[i]->name);
47d1a6e1 841 }
6d0f6bcf 842#endif /* CONFIG_SYS_CONSOLE_ENV_OVERWRITE */
47d1a6e1 843
c4e0057f
JH
844 gd->flags |= GD_FLG_DEVINIT; /* device initialization completed */
845
47d1a6e1
WD
846#if 0
847 /* If nothing usable installed, use only the initial console */
848 if ((stdio_devices[stdin] == NULL) && (stdio_devices[stdout] == NULL))
ec6f1499 849 return 0;
47d1a6e1 850#endif
27669667 851 print_pre_console_buffer(PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL);
ec6f1499 852 return 0;
47d1a6e1
WD
853}
854
6d0f6bcf 855#else /* CONFIG_SYS_CONSOLE_IS_IN_ENV */
47d1a6e1
WD
856
857/* Called after the relocation - use desired console functions */
ec6f1499 858int console_init_r(void)
47d1a6e1 859{
52cb4d4f 860 struct stdio_dev *inputdev = NULL, *outputdev = NULL;
c1de7a6d 861 int i;
52cb4d4f 862 struct list_head *list = stdio_get_list();
c1de7a6d 863 struct list_head *pos;
52cb4d4f 864 struct stdio_dev *dev;
47d1a6e1 865
d791b1dc 866#ifdef CONFIG_SPLASH_SCREEN
ec6f1499
JCPV
867 /*
868 * suppress all output if splash screen is enabled and we have
a7490816
AG
869 * a bmp to display. We redirect the output from frame buffer
870 * console to serial console in this case or suppress it if
871 * "silent" mode was requested.
ec6f1499 872 */
a7490816
AG
873 if (getenv("splashimage") != NULL) {
874 if (!(gd->flags & GD_FLG_SILENT))
875 outputdev = search_device (DEV_FLAGS_OUTPUT, "serial");
876 }
f72da340
WD
877#endif
878
47d1a6e1 879 /* Scan devices looking for input and output devices */
c1de7a6d 880 list_for_each(pos, list) {
52cb4d4f 881 dev = list_entry(pos, struct stdio_dev, list);
47d1a6e1
WD
882
883 if ((dev->flags & DEV_FLAGS_INPUT) && (inputdev == NULL)) {
884 inputdev = dev;
885 }
886 if ((dev->flags & DEV_FLAGS_OUTPUT) && (outputdev == NULL)) {
887 outputdev = dev;
888 }
c1de7a6d
JCPV
889 if(inputdev && outputdev)
890 break;
47d1a6e1
WD
891 }
892
893 /* Initializes output console first */
894 if (outputdev != NULL) {
ec6f1499
JCPV
895 console_setfile(stdout, outputdev);
896 console_setfile(stderr, outputdev);
16a28ef2
GJ
897#ifdef CONFIG_CONSOLE_MUX
898 console_devices[stdout][0] = outputdev;
899 console_devices[stderr][0] = outputdev;
900#endif
47d1a6e1
WD
901 }
902
903 /* Initializes input console */
904 if (inputdev != NULL) {
ec6f1499 905 console_setfile(stdin, inputdev);
16a28ef2
GJ
906#ifdef CONFIG_CONSOLE_MUX
907 console_devices[stdin][0] = inputdev;
908#endif
47d1a6e1
WD
909 }
910
78c112c9 911#ifndef CONFIG_SYS_CONSOLE_INFO_QUIET
7e3be7cf 912 stdio_print_current_devices();
78c112c9 913#endif /* CONFIG_SYS_CONSOLE_INFO_QUIET */
47d1a6e1
WD
914
915 /* Setting environment variables */
916 for (i = 0; i < 3; i++) {
ec6f1499 917 setenv(stdio_names[i], stdio_devices[i]->name);
47d1a6e1
WD
918 }
919
c4e0057f
JH
920 gd->flags |= GD_FLG_DEVINIT; /* device initialization completed */
921
47d1a6e1
WD
922#if 0
923 /* If nothing usable installed, use only the initial console */
924 if ((stdio_devices[stdin] == NULL) && (stdio_devices[stdout] == NULL))
ec6f1499 925 return 0;
47d1a6e1 926#endif
27669667 927 print_pre_console_buffer(PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL);
ec6f1499 928 return 0;
47d1a6e1
WD
929}
930
6d0f6bcf 931#endif /* CONFIG_SYS_CONSOLE_IS_IN_ENV */