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wdenk47d1a6e2002-11-03 00:01:44 +00001/*
2 * (C) Copyright 2000
3 * Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio@tin.it
4 *
5 * See file CREDITS for list of people who contributed to this
6 * project.
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21 * MA 02111-1307 USA
22 */
23
24#include <common.h>
25#include <stdarg.h>
26#include <malloc.h>
27#include <console.h>
wdenk27b207f2003-07-24 23:38:38 +000028#include <exports.h>
wdenk47d1a6e2002-11-03 00:01:44 +000029
Wolfgang Denkd87080b2006-03-31 18:32:53 +020030DECLARE_GLOBAL_DATA_PTR;
31
wdenkc7de8292002-11-19 11:04:11 +000032#ifdef CONFIG_AMIGAONEG3SE
33int console_changed = 0;
34#endif
35
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020036#ifdef CONFIG_SYS_CONSOLE_IS_IN_ENV
wdenk47d1a6e2002-11-03 00:01:44 +000037/*
38 * if overwrite_console returns 1, the stdin, stderr and stdout
39 * are switched to the serial port, else the settings in the
40 * environment are used
41 */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020042#ifdef CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE
wdenk47d1a6e2002-11-03 00:01:44 +000043extern int overwrite_console (void);
wdenk83e40ba2005-03-31 18:42:15 +000044#define OVERWRITE_CONSOLE overwrite_console ()
wdenk47d1a6e2002-11-03 00:01:44 +000045#else
wdenk83e40ba2005-03-31 18:42:15 +000046#define OVERWRITE_CONSOLE 0
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020047#endif /* CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE */
wdenk47d1a6e2002-11-03 00:01:44 +000048
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020049#endif /* CONFIG_SYS_CONSOLE_IS_IN_ENV */
wdenk47d1a6e2002-11-03 00:01:44 +000050
51static int console_setfile (int file, device_t * dev)
52{
53 int error = 0;
54
55 if (dev == NULL)
56 return -1;
57
58 switch (file) {
59 case stdin:
60 case stdout:
61 case stderr:
62 /* Start new device */
63 if (dev->start) {
64 error = dev->start ();
65 /* If it's not started dont use it */
66 if (error < 0)
67 break;
68 }
69
70 /* Assign the new device (leaving the existing one started) */
71 stdio_devices[file] = dev;
72
73 /*
74 * Update monitor functions
75 * (to use the console stuff by other applications)
76 */
77 switch (file) {
78 case stdin:
wdenk27b207f2003-07-24 23:38:38 +000079 gd->jt[XF_getc] = dev->getc;
80 gd->jt[XF_tstc] = dev->tstc;
wdenk47d1a6e2002-11-03 00:01:44 +000081 break;
82 case stdout:
wdenk27b207f2003-07-24 23:38:38 +000083 gd->jt[XF_putc] = dev->putc;
84 gd->jt[XF_puts] = dev->puts;
85 gd->jt[XF_printf] = printf;
wdenk47d1a6e2002-11-03 00:01:44 +000086 break;
87 }
88 break;
89
90 default: /* Invalid file ID */
91 error = -1;
92 }
93 return error;
94}
95
96/** U-Boot INITIAL CONSOLE-NOT COMPATIBLE FUNCTIONS *************************/
97
98void serial_printf (const char *fmt, ...)
99{
100 va_list args;
101 uint i;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200102 char printbuffer[CONFIG_SYS_PBSIZE];
wdenk47d1a6e2002-11-03 00:01:44 +0000103
104 va_start (args, fmt);
105
106 /* For this to work, printbuffer must be larger than
107 * anything we ever want to print.
108 */
109 i = vsprintf (printbuffer, fmt, args);
110 va_end (args);
111
112 serial_puts (printbuffer);
113}
114
115int fgetc (int file)
116{
117 if (file < MAX_FILES)
118 return stdio_devices[file]->getc ();
119
120 return -1;
121}
122
123int ftstc (int file)
124{
125 if (file < MAX_FILES)
126 return stdio_devices[file]->tstc ();
127
128 return -1;
129}
130
131void fputc (int file, const char c)
132{
133 if (file < MAX_FILES)
134 stdio_devices[file]->putc (c);
135}
136
137void fputs (int file, const char *s)
138{
139 if (file < MAX_FILES)
140 stdio_devices[file]->puts (s);
141}
142
143void fprintf (int file, const char *fmt, ...)
144{
145 va_list args;
146 uint i;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200147 char printbuffer[CONFIG_SYS_PBSIZE];
wdenk47d1a6e2002-11-03 00:01:44 +0000148
149 va_start (args, fmt);
150
151 /* For this to work, printbuffer must be larger than
152 * anything we ever want to print.
153 */
154 i = vsprintf (printbuffer, fmt, args);
155 va_end (args);
156
157 /* Send to desired file */
158 fputs (file, printbuffer);
159}
160
161/** U-Boot INITIAL CONSOLE-COMPATIBLE FUNCTION *****************************/
162
163int getc (void)
164{
Mark Jacksonf5c3ba72008-08-25 19:21:30 +0100165#ifdef CONFIG_DISABLE_CONSOLE
166 if (gd->flags & GD_FLG_DISABLE_CONSOLE)
167 return 0;
168#endif
169
wdenk47d1a6e2002-11-03 00:01:44 +0000170 if (gd->flags & GD_FLG_DEVINIT) {
171 /* Get from the standard input */
172 return fgetc (stdin);
173 }
174
175 /* Send directly to the handler */
176 return serial_getc ();
177}
178
179int tstc (void)
180{
Mark Jacksonf5c3ba72008-08-25 19:21:30 +0100181#ifdef CONFIG_DISABLE_CONSOLE
182 if (gd->flags & GD_FLG_DISABLE_CONSOLE)
183 return 0;
184#endif
185
wdenk47d1a6e2002-11-03 00:01:44 +0000186 if (gd->flags & GD_FLG_DEVINIT) {
187 /* Test the standard input */
188 return ftstc (stdin);
189 }
190
191 /* Send directly to the handler */
192 return serial_tstc ();
193}
194
195void putc (const char c)
196{
wdenka6cccae2004-02-06 21:48:22 +0000197#ifdef CONFIG_SILENT_CONSOLE
198 if (gd->flags & GD_FLG_SILENT)
wdenkf6e20fc2004-02-08 19:38:38 +0000199 return;
wdenka6cccae2004-02-06 21:48:22 +0000200#endif
201
Mark Jacksonf5c3ba72008-08-25 19:21:30 +0100202#ifdef CONFIG_DISABLE_CONSOLE
203 if (gd->flags & GD_FLG_DISABLE_CONSOLE)
204 return;
205#endif
206
wdenk47d1a6e2002-11-03 00:01:44 +0000207 if (gd->flags & GD_FLG_DEVINIT) {
208 /* Send to the standard output */
209 fputc (stdout, c);
210 } else {
211 /* Send directly to the handler */
212 serial_putc (c);
213 }
214}
215
216void puts (const char *s)
217{
wdenka6cccae2004-02-06 21:48:22 +0000218#ifdef CONFIG_SILENT_CONSOLE
219 if (gd->flags & GD_FLG_SILENT)
220 return;
221#endif
222
Mark Jacksonf5c3ba72008-08-25 19:21:30 +0100223#ifdef CONFIG_DISABLE_CONSOLE
224 if (gd->flags & GD_FLG_DISABLE_CONSOLE)
225 return;
226#endif
227
wdenk47d1a6e2002-11-03 00:01:44 +0000228 if (gd->flags & GD_FLG_DEVINIT) {
229 /* Send to the standard output */
230 fputs (stdout, s);
231 } else {
232 /* Send directly to the handler */
233 serial_puts (s);
234 }
235}
236
237void printf (const char *fmt, ...)
238{
239 va_list args;
240 uint i;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200241 char printbuffer[CONFIG_SYS_PBSIZE];
wdenk47d1a6e2002-11-03 00:01:44 +0000242
243 va_start (args, fmt);
244
245 /* For this to work, printbuffer must be larger than
246 * anything we ever want to print.
247 */
248 i = vsprintf (printbuffer, fmt, args);
249 va_end (args);
250
251 /* Print the string */
252 puts (printbuffer);
253}
254
wdenk6dd652f2003-06-19 23:40:20 +0000255void vprintf (const char *fmt, va_list args)
256{
257 uint i;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200258 char printbuffer[CONFIG_SYS_PBSIZE];
wdenk6dd652f2003-06-19 23:40:20 +0000259
260 /* For this to work, printbuffer must be larger than
261 * anything we ever want to print.
262 */
263 i = vsprintf (printbuffer, fmt, args);
264
265 /* Print the string */
266 puts (printbuffer);
267}
268
wdenk47d1a6e2002-11-03 00:01:44 +0000269/* test if ctrl-c was pressed */
270static int ctrlc_disabled = 0; /* see disable_ctrl() */
271static int ctrlc_was_pressed = 0;
272int ctrlc (void)
273{
wdenk47d1a6e2002-11-03 00:01:44 +0000274 if (!ctrlc_disabled && gd->have_console) {
275 if (tstc ()) {
276 switch (getc ()) {
277 case 0x03: /* ^C - Control C */
278 ctrlc_was_pressed = 1;
279 return 1;
280 default:
281 break;
282 }
283 }
284 }
285 return 0;
286}
287
288/* pass 1 to disable ctrlc() checking, 0 to enable.
289 * returns previous state
290 */
291int disable_ctrlc (int disable)
292{
293 int prev = ctrlc_disabled; /* save previous state */
294
295 ctrlc_disabled = disable;
296 return prev;
297}
298
299int had_ctrlc (void)
300{
301 return ctrlc_was_pressed;
302}
303
304void clear_ctrlc (void)
305{
306 ctrlc_was_pressed = 0;
307}
308
309#ifdef CONFIG_MODEM_SUPPORT_DEBUG
310char screen[1024];
311char *cursor = screen;
312int once = 0;
313inline void dbg(const char *fmt, ...)
314{
315 va_list args;
316 uint i;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200317 char printbuffer[CONFIG_SYS_PBSIZE];
wdenk47d1a6e2002-11-03 00:01:44 +0000318
319 if (!once) {
320 memset(screen, 0, sizeof(screen));
321 once++;
322 }
323
324 va_start(args, fmt);
325
326 /* For this to work, printbuffer must be larger than
327 * anything we ever want to print.
328 */
329 i = vsprintf(printbuffer, fmt, args);
330 va_end(args);
331
332 if ((screen + sizeof(screen) - 1 - cursor) < strlen(printbuffer)+1) {
333 memset(screen, 0, sizeof(screen));
334 cursor = screen;
335 }
336 sprintf(cursor, printbuffer);
337 cursor += strlen(printbuffer);
338
339}
340#else
341inline void dbg(const char *fmt, ...)
342{
343}
344#endif
345
346/** U-Boot INIT FUNCTIONS *************************************************/
347
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200348device_t *search_device (int flags, char *name)
349{
350 device_t *dev;
351
352 dev = device_get_by_name(name);
353
354 if(dev && (dev->flags & flags))
355 return dev;
356
357 return NULL;
358}
359
wdenk47d1a6e2002-11-03 00:01:44 +0000360int console_assign (int file, char *devname)
361{
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200362 int flag;
363 device_t *dev;
wdenk47d1a6e2002-11-03 00:01:44 +0000364
365 /* Check for valid file */
366 switch (file) {
367 case stdin:
368 flag = DEV_FLAGS_INPUT;
369 break;
370 case stdout:
371 case stderr:
372 flag = DEV_FLAGS_OUTPUT;
373 break;
374 default:
375 return -1;
376 }
377
378 /* Check for valid device name */
379
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200380 dev = search_device(flag, devname);
wdenk47d1a6e2002-11-03 00:01:44 +0000381
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200382 if(dev)
383 return console_setfile (file, dev);
wdenk47d1a6e2002-11-03 00:01:44 +0000384
385 return -1;
386}
387
388/* Called before relocation - use serial functions */
389int console_init_f (void)
390{
wdenk47d1a6e2002-11-03 00:01:44 +0000391 gd->have_console = 1;
wdenkf72da342003-10-10 10:05:42 +0000392
393#ifdef CONFIG_SILENT_CONSOLE
394 if (getenv("silent") != NULL)
395 gd->flags |= GD_FLG_SILENT;
396#endif
397
wdenk47d1a6e2002-11-03 00:01:44 +0000398 return (0);
399}
400
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200401#ifdef CONFIG_SYS_CONSOLE_IS_IN_ENV
wdenk47d1a6e2002-11-03 00:01:44 +0000402/* Called after the relocation - use desired console functions */
403int console_init_r (void)
404{
405 char *stdinname, *stdoutname, *stderrname;
406 device_t *inputdev = NULL, *outputdev = NULL, *errdev = NULL;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200407#ifdef CONFIG_SYS_CONSOLE_ENV_OVERWRITE
wdenk6e592382004-04-18 17:39:38 +0000408 int i;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200409#endif /* CONFIG_SYS_CONSOLE_ENV_OVERWRITE */
wdenk47d1a6e2002-11-03 00:01:44 +0000410
411 /* set default handlers at first */
wdenk27b207f2003-07-24 23:38:38 +0000412 gd->jt[XF_getc] = serial_getc;
413 gd->jt[XF_tstc] = serial_tstc;
414 gd->jt[XF_putc] = serial_putc;
415 gd->jt[XF_puts] = serial_puts;
416 gd->jt[XF_printf] = serial_printf;
wdenk47d1a6e2002-11-03 00:01:44 +0000417
418 /* stdin stdout and stderr are in environment */
419 /* scan for it */
420 stdinname = getenv ("stdin");
421 stdoutname = getenv ("stdout");
422 stderrname = getenv ("stderr");
423
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200424 if (OVERWRITE_CONSOLE == 0) { /* if not overwritten by config switch */
wdenk47d1a6e2002-11-03 00:01:44 +0000425 inputdev = search_device (DEV_FLAGS_INPUT, stdinname);
426 outputdev = search_device (DEV_FLAGS_OUTPUT, stdoutname);
427 errdev = search_device (DEV_FLAGS_OUTPUT, stderrname);
428 }
429 /* if the devices are overwritten or not found, use default device */
430 if (inputdev == NULL) {
431 inputdev = search_device (DEV_FLAGS_INPUT, "serial");
432 }
433 if (outputdev == NULL) {
434 outputdev = search_device (DEV_FLAGS_OUTPUT, "serial");
435 }
436 if (errdev == NULL) {
437 errdev = search_device (DEV_FLAGS_OUTPUT, "serial");
438 }
439 /* Initializes output console first */
440 if (outputdev != NULL) {
441 console_setfile (stdout, outputdev);
442 }
443 if (errdev != NULL) {
444 console_setfile (stderr, errdev);
445 }
446 if (inputdev != NULL) {
447 console_setfile (stdin, inputdev);
448 }
449
wdenk5f535fe2003-09-18 09:21:33 +0000450 gd->flags |= GD_FLG_DEVINIT; /* device initialization completed */
451
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200452#ifndef CONFIG_SYS_CONSOLE_INFO_QUIET
wdenk47d1a6e2002-11-03 00:01:44 +0000453 /* Print information */
wdenk4b9206e2004-03-23 22:14:11 +0000454 puts ("In: ");
wdenk47d1a6e2002-11-03 00:01:44 +0000455 if (stdio_devices[stdin] == NULL) {
wdenk4b9206e2004-03-23 22:14:11 +0000456 puts ("No input devices available!\n");
wdenk47d1a6e2002-11-03 00:01:44 +0000457 } else {
458 printf ("%s\n", stdio_devices[stdin]->name);
459 }
460
wdenk4b9206e2004-03-23 22:14:11 +0000461 puts ("Out: ");
wdenk47d1a6e2002-11-03 00:01:44 +0000462 if (stdio_devices[stdout] == NULL) {
wdenk4b9206e2004-03-23 22:14:11 +0000463 puts ("No output devices available!\n");
wdenk47d1a6e2002-11-03 00:01:44 +0000464 } else {
465 printf ("%s\n", stdio_devices[stdout]->name);
466 }
467
wdenk4b9206e2004-03-23 22:14:11 +0000468 puts ("Err: ");
wdenk47d1a6e2002-11-03 00:01:44 +0000469 if (stdio_devices[stderr] == NULL) {
wdenk4b9206e2004-03-23 22:14:11 +0000470 puts ("No error devices available!\n");
wdenk47d1a6e2002-11-03 00:01:44 +0000471 } else {
472 printf ("%s\n", stdio_devices[stderr]->name);
473 }
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200474#endif /* CONFIG_SYS_CONSOLE_INFO_QUIET */
wdenk47d1a6e2002-11-03 00:01:44 +0000475
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200476#ifdef CONFIG_SYS_CONSOLE_ENV_OVERWRITE
wdenk47d1a6e2002-11-03 00:01:44 +0000477 /* set the environment variables (will overwrite previous env settings) */
478 for (i = 0; i < 3; i++) {
479 setenv (stdio_names[i], stdio_devices[i]->name);
480 }
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200481#endif /* CONFIG_SYS_CONSOLE_ENV_OVERWRITE */
wdenk47d1a6e2002-11-03 00:01:44 +0000482
483#if 0
484 /* If nothing usable installed, use only the initial console */
485 if ((stdio_devices[stdin] == NULL) && (stdio_devices[stdout] == NULL))
486 return (0);
487#endif
488 return (0);
489}
490
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200491#else /* CONFIG_SYS_CONSOLE_IS_IN_ENV */
wdenk47d1a6e2002-11-03 00:01:44 +0000492
493/* Called after the relocation - use desired console functions */
494int console_init_r (void)
495{
496 device_t *inputdev = NULL, *outputdev = NULL;
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200497 int i;
498 struct list_head *list = device_get_list();
499 struct list_head *pos;
500 device_t *dev;
wdenk47d1a6e2002-11-03 00:01:44 +0000501
wdenkd791b1d2003-04-20 14:04:18 +0000502#ifdef CONFIG_SPLASH_SCREEN
dzu87970eb2003-09-29 21:55:54 +0000503 /* suppress all output if splash screen is enabled and we have
wdenk42d1f032003-10-15 23:53:47 +0000504 a bmp to display */
dzu87970eb2003-09-29 21:55:54 +0000505 if (getenv("splashimage") != NULL)
Ladislav Michl4ec5bd52007-04-25 16:01:26 +0200506 gd->flags |= GD_FLG_SILENT;
wdenkf72da342003-10-10 10:05:42 +0000507#endif
508
wdenk47d1a6e2002-11-03 00:01:44 +0000509 /* Scan devices looking for input and output devices */
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200510 list_for_each(pos, list) {
511 dev = list_entry(pos, device_t, list);
wdenk47d1a6e2002-11-03 00:01:44 +0000512
513 if ((dev->flags & DEV_FLAGS_INPUT) && (inputdev == NULL)) {
514 inputdev = dev;
515 }
516 if ((dev->flags & DEV_FLAGS_OUTPUT) && (outputdev == NULL)) {
517 outputdev = dev;
518 }
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200519 if(inputdev && outputdev)
520 break;
wdenk47d1a6e2002-11-03 00:01:44 +0000521 }
522
523 /* Initializes output console first */
524 if (outputdev != NULL) {
525 console_setfile (stdout, outputdev);
526 console_setfile (stderr, outputdev);
527 }
528
529 /* Initializes input console */
530 if (inputdev != NULL) {
531 console_setfile (stdin, inputdev);
532 }
533
wdenk5f535fe2003-09-18 09:21:33 +0000534 gd->flags |= GD_FLG_DEVINIT; /* device initialization completed */
535
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200536#ifndef CONFIG_SYS_CONSOLE_INFO_QUIET
wdenk47cd00f2003-03-06 13:39:27 +0000537 /* Print information */
wdenk4b9206e2004-03-23 22:14:11 +0000538 puts ("In: ");
wdenk47d1a6e2002-11-03 00:01:44 +0000539 if (stdio_devices[stdin] == NULL) {
wdenk4b9206e2004-03-23 22:14:11 +0000540 puts ("No input devices available!\n");
wdenk47d1a6e2002-11-03 00:01:44 +0000541 } else {
542 printf ("%s\n", stdio_devices[stdin]->name);
543 }
544
wdenk4b9206e2004-03-23 22:14:11 +0000545 puts ("Out: ");
wdenk47d1a6e2002-11-03 00:01:44 +0000546 if (stdio_devices[stdout] == NULL) {
wdenk4b9206e2004-03-23 22:14:11 +0000547 puts ("No output devices available!\n");
wdenk47d1a6e2002-11-03 00:01:44 +0000548 } else {
549 printf ("%s\n", stdio_devices[stdout]->name);
550 }
551
wdenk4b9206e2004-03-23 22:14:11 +0000552 puts ("Err: ");
wdenk47d1a6e2002-11-03 00:01:44 +0000553 if (stdio_devices[stderr] == NULL) {
wdenk4b9206e2004-03-23 22:14:11 +0000554 puts ("No error devices available!\n");
wdenk47d1a6e2002-11-03 00:01:44 +0000555 } else {
556 printf ("%s\n", stdio_devices[stderr]->name);
557 }
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200558#endif /* CONFIG_SYS_CONSOLE_INFO_QUIET */
wdenk47d1a6e2002-11-03 00:01:44 +0000559
560 /* Setting environment variables */
561 for (i = 0; i < 3; i++) {
562 setenv (stdio_names[i], stdio_devices[i]->name);
563 }
564
565#if 0
566 /* If nothing usable installed, use only the initial console */
567 if ((stdio_devices[stdin] == NULL) && (stdio_devices[stdout] == NULL))
568 return (0);
569#endif
570
571 return (0);
572}
573
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200574#endif /* CONFIG_SYS_CONSOLE_IS_IN_ENV */