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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
wdenk47d1a6e2002-11-03 00:01:44 +000036#ifdef CFG_CONSOLE_IS_IN_ENV
37/*
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 */
42#ifdef CFG_CONSOLE_OVERWRITE_ROUTINE
43extern 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
wdenk47d1a6e2002-11-03 00:01:44 +000047#endif /* CFG_CONSOLE_OVERWRITE_ROUTINE */
48
49#endif /* CFG_CONSOLE_IS_IN_ENV */
50
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;
102 char printbuffer[CFG_PBSIZE];
103
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;
147 char printbuffer[CFG_PBSIZE];
148
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{
wdenk47d1a6e2002-11-03 00:01:44 +0000165 if (gd->flags & GD_FLG_DEVINIT) {
166 /* Get from the standard input */
167 return fgetc (stdin);
168 }
169
170 /* Send directly to the handler */
171 return serial_getc ();
172}
173
174int tstc (void)
175{
wdenk47d1a6e2002-11-03 00:01:44 +0000176 if (gd->flags & GD_FLG_DEVINIT) {
177 /* Test the standard input */
178 return ftstc (stdin);
179 }
180
181 /* Send directly to the handler */
182 return serial_tstc ();
183}
184
185void putc (const char c)
186{
wdenka6cccae2004-02-06 21:48:22 +0000187#ifdef CONFIG_SILENT_CONSOLE
188 if (gd->flags & GD_FLG_SILENT)
wdenkf6e20fc2004-02-08 19:38:38 +0000189 return;
wdenka6cccae2004-02-06 21:48:22 +0000190#endif
191
wdenk47d1a6e2002-11-03 00:01:44 +0000192 if (gd->flags & GD_FLG_DEVINIT) {
193 /* Send to the standard output */
194 fputc (stdout, c);
195 } else {
196 /* Send directly to the handler */
197 serial_putc (c);
198 }
199}
200
201void puts (const char *s)
202{
wdenka6cccae2004-02-06 21:48:22 +0000203#ifdef CONFIG_SILENT_CONSOLE
204 if (gd->flags & GD_FLG_SILENT)
205 return;
206#endif
207
wdenk47d1a6e2002-11-03 00:01:44 +0000208 if (gd->flags & GD_FLG_DEVINIT) {
209 /* Send to the standard output */
210 fputs (stdout, s);
211 } else {
212 /* Send directly to the handler */
213 serial_puts (s);
214 }
215}
216
217void printf (const char *fmt, ...)
218{
219 va_list args;
220 uint i;
221 char printbuffer[CFG_PBSIZE];
222
223 va_start (args, fmt);
224
225 /* For this to work, printbuffer must be larger than
226 * anything we ever want to print.
227 */
228 i = vsprintf (printbuffer, fmt, args);
229 va_end (args);
230
231 /* Print the string */
232 puts (printbuffer);
233}
234
wdenk6dd652f2003-06-19 23:40:20 +0000235void vprintf (const char *fmt, va_list args)
236{
237 uint i;
238 char printbuffer[CFG_PBSIZE];
239
240 /* For this to work, printbuffer must be larger than
241 * anything we ever want to print.
242 */
243 i = vsprintf (printbuffer, fmt, args);
244
245 /* Print the string */
246 puts (printbuffer);
247}
248
wdenk47d1a6e2002-11-03 00:01:44 +0000249/* test if ctrl-c was pressed */
250static int ctrlc_disabled = 0; /* see disable_ctrl() */
251static int ctrlc_was_pressed = 0;
252int ctrlc (void)
253{
wdenk47d1a6e2002-11-03 00:01:44 +0000254 if (!ctrlc_disabled && gd->have_console) {
255 if (tstc ()) {
256 switch (getc ()) {
257 case 0x03: /* ^C - Control C */
258 ctrlc_was_pressed = 1;
259 return 1;
260 default:
261 break;
262 }
263 }
264 }
265 return 0;
266}
267
268/* pass 1 to disable ctrlc() checking, 0 to enable.
269 * returns previous state
270 */
271int disable_ctrlc (int disable)
272{
273 int prev = ctrlc_disabled; /* save previous state */
274
275 ctrlc_disabled = disable;
276 return prev;
277}
278
279int had_ctrlc (void)
280{
281 return ctrlc_was_pressed;
282}
283
284void clear_ctrlc (void)
285{
286 ctrlc_was_pressed = 0;
287}
288
289#ifdef CONFIG_MODEM_SUPPORT_DEBUG
290char screen[1024];
291char *cursor = screen;
292int once = 0;
293inline void dbg(const char *fmt, ...)
294{
295 va_list args;
296 uint i;
297 char printbuffer[CFG_PBSIZE];
298
299 if (!once) {
300 memset(screen, 0, sizeof(screen));
301 once++;
302 }
303
304 va_start(args, fmt);
305
306 /* For this to work, printbuffer must be larger than
307 * anything we ever want to print.
308 */
309 i = vsprintf(printbuffer, fmt, args);
310 va_end(args);
311
312 if ((screen + sizeof(screen) - 1 - cursor) < strlen(printbuffer)+1) {
313 memset(screen, 0, sizeof(screen));
314 cursor = screen;
315 }
316 sprintf(cursor, printbuffer);
317 cursor += strlen(printbuffer);
318
319}
320#else
321inline void dbg(const char *fmt, ...)
322{
323}
324#endif
325
326/** U-Boot INIT FUNCTIONS *************************************************/
327
328int console_assign (int file, char *devname)
329{
330 int flag, i;
331
332 /* Check for valid file */
333 switch (file) {
334 case stdin:
335 flag = DEV_FLAGS_INPUT;
336 break;
337 case stdout:
338 case stderr:
339 flag = DEV_FLAGS_OUTPUT;
340 break;
341 default:
342 return -1;
343 }
344
345 /* Check for valid device name */
346
347 for (i = 1; i <= ListNumItems (devlist); i++) {
348 device_t *dev = ListGetPtrToItem (devlist, i);
349
350 if (strcmp (devname, dev->name) == 0) {
351 if (dev->flags & flag)
352 return console_setfile (file, dev);
353
354 return -1;
355 }
356 }
357
358 return -1;
359}
360
361/* Called before relocation - use serial functions */
362int console_init_f (void)
363{
wdenk47d1a6e2002-11-03 00:01:44 +0000364 gd->have_console = 1;
wdenkf72da342003-10-10 10:05:42 +0000365
366#ifdef CONFIG_SILENT_CONSOLE
367 if (getenv("silent") != NULL)
368 gd->flags |= GD_FLG_SILENT;
369#endif
370
wdenk47d1a6e2002-11-03 00:01:44 +0000371 return (0);
372}
373
wdenkf72da342003-10-10 10:05:42 +0000374#if defined(CFG_CONSOLE_IS_IN_ENV) || defined(CONFIG_SPLASH_SCREEN) || defined(CONFIG_SILENT_CONSOLE)
wdenk47d1a6e2002-11-03 00:01:44 +0000375/* search a device */
376device_t *search_device (int flags, char *name)
377{
378 int i, items;
379 device_t *dev = NULL;
380
381 items = ListNumItems (devlist);
382 if (name == NULL)
383 return dev;
384
385 for (i = 1; i <= items; i++) {
386 dev = ListGetPtrToItem (devlist, i);
387 if ((dev->flags & flags) && (strcmp (name, dev->name) == 0)) {
388 break;
389 }
390 }
391 return dev;
392}
wdenkd791b1d2003-04-20 14:04:18 +0000393#endif /* CFG_CONSOLE_IS_IN_ENV || CONFIG_SPLASH_SCREEN */
wdenk47d1a6e2002-11-03 00:01:44 +0000394
395#ifdef CFG_CONSOLE_IS_IN_ENV
396/* Called after the relocation - use desired console functions */
397int console_init_r (void)
398{
399 char *stdinname, *stdoutname, *stderrname;
400 device_t *inputdev = NULL, *outputdev = NULL, *errdev = NULL;
wdenk6e592382004-04-18 17:39:38 +0000401#ifdef CFG_CONSOLE_ENV_OVERWRITE
402 int i;
403#endif /* CFG_CONSOLE_ENV_OVERWRITE */
wdenk47d1a6e2002-11-03 00:01:44 +0000404
405 /* set default handlers at first */
wdenk27b207f2003-07-24 23:38:38 +0000406 gd->jt[XF_getc] = serial_getc;
407 gd->jt[XF_tstc] = serial_tstc;
408 gd->jt[XF_putc] = serial_putc;
409 gd->jt[XF_puts] = serial_puts;
410 gd->jt[XF_printf] = serial_printf;
wdenk47d1a6e2002-11-03 00:01:44 +0000411
412 /* stdin stdout and stderr are in environment */
413 /* scan for it */
414 stdinname = getenv ("stdin");
415 stdoutname = getenv ("stdout");
416 stderrname = getenv ("stderr");
417
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200418 if (OVERWRITE_CONSOLE == 0) { /* if not overwritten by config switch */
wdenk47d1a6e2002-11-03 00:01:44 +0000419 inputdev = search_device (DEV_FLAGS_INPUT, stdinname);
420 outputdev = search_device (DEV_FLAGS_OUTPUT, stdoutname);
421 errdev = search_device (DEV_FLAGS_OUTPUT, stderrname);
422 }
423 /* if the devices are overwritten or not found, use default device */
424 if (inputdev == NULL) {
425 inputdev = search_device (DEV_FLAGS_INPUT, "serial");
426 }
427 if (outputdev == NULL) {
428 outputdev = search_device (DEV_FLAGS_OUTPUT, "serial");
429 }
430 if (errdev == NULL) {
431 errdev = search_device (DEV_FLAGS_OUTPUT, "serial");
432 }
433 /* Initializes output console first */
434 if (outputdev != NULL) {
435 console_setfile (stdout, outputdev);
436 }
437 if (errdev != NULL) {
438 console_setfile (stderr, errdev);
439 }
440 if (inputdev != NULL) {
441 console_setfile (stdin, inputdev);
442 }
443
wdenk5f535fe2003-09-18 09:21:33 +0000444 gd->flags |= GD_FLG_DEVINIT; /* device initialization completed */
445
wdenk47d1a6e2002-11-03 00:01:44 +0000446#ifndef CFG_CONSOLE_INFO_QUIET
447 /* Print information */
wdenk4b9206e2004-03-23 22:14:11 +0000448 puts ("In: ");
wdenk47d1a6e2002-11-03 00:01:44 +0000449 if (stdio_devices[stdin] == NULL) {
wdenk4b9206e2004-03-23 22:14:11 +0000450 puts ("No input devices available!\n");
wdenk47d1a6e2002-11-03 00:01:44 +0000451 } else {
452 printf ("%s\n", stdio_devices[stdin]->name);
453 }
454
wdenk4b9206e2004-03-23 22:14:11 +0000455 puts ("Out: ");
wdenk47d1a6e2002-11-03 00:01:44 +0000456 if (stdio_devices[stdout] == NULL) {
wdenk4b9206e2004-03-23 22:14:11 +0000457 puts ("No output devices available!\n");
wdenk47d1a6e2002-11-03 00:01:44 +0000458 } else {
459 printf ("%s\n", stdio_devices[stdout]->name);
460 }
461
wdenk4b9206e2004-03-23 22:14:11 +0000462 puts ("Err: ");
wdenk47d1a6e2002-11-03 00:01:44 +0000463 if (stdio_devices[stderr] == NULL) {
wdenk4b9206e2004-03-23 22:14:11 +0000464 puts ("No error devices available!\n");
wdenk47d1a6e2002-11-03 00:01:44 +0000465 } else {
466 printf ("%s\n", stdio_devices[stderr]->name);
467 }
468#endif /* CFG_CONSOLE_INFO_QUIET */
469
470#ifdef CFG_CONSOLE_ENV_OVERWRITE
471 /* set the environment variables (will overwrite previous env settings) */
472 for (i = 0; i < 3; i++) {
473 setenv (stdio_names[i], stdio_devices[i]->name);
474 }
wdenk6e592382004-04-18 17:39:38 +0000475#endif /* CFG_CONSOLE_ENV_OVERWRITE */
wdenk47d1a6e2002-11-03 00:01:44 +0000476
477#if 0
478 /* If nothing usable installed, use only the initial console */
479 if ((stdio_devices[stdin] == NULL) && (stdio_devices[stdout] == NULL))
480 return (0);
481#endif
482 return (0);
483}
484
485#else /* CFG_CONSOLE_IS_IN_ENV */
486
487/* Called after the relocation - use desired console functions */
488int console_init_r (void)
489{
490 device_t *inputdev = NULL, *outputdev = NULL;
491 int i, items = ListNumItems (devlist);
492
wdenkd791b1d2003-04-20 14:04:18 +0000493#ifdef CONFIG_SPLASH_SCREEN
dzu87970eb2003-09-29 21:55:54 +0000494 /* suppress all output if splash screen is enabled and we have
wdenk42d1f032003-10-15 23:53:47 +0000495 a bmp to display */
dzu87970eb2003-09-29 21:55:54 +0000496 if (getenv("splashimage") != NULL)
Ladislav Michl4ec5bd52007-04-25 16:01:26 +0200497 gd->flags |= GD_FLG_SILENT;
wdenkf72da342003-10-10 10:05:42 +0000498#endif
499
wdenk47d1a6e2002-11-03 00:01:44 +0000500 /* Scan devices looking for input and output devices */
501 for (i = 1;
502 (i <= items) && ((inputdev == NULL) || (outputdev == NULL));
503 i++
504 ) {
505 device_t *dev = ListGetPtrToItem (devlist, i);
506
507 if ((dev->flags & DEV_FLAGS_INPUT) && (inputdev == NULL)) {
508 inputdev = dev;
509 }
510 if ((dev->flags & DEV_FLAGS_OUTPUT) && (outputdev == NULL)) {
511 outputdev = dev;
512 }
513 }
514
515 /* Initializes output console first */
516 if (outputdev != NULL) {
517 console_setfile (stdout, outputdev);
518 console_setfile (stderr, outputdev);
519 }
520
521 /* Initializes input console */
522 if (inputdev != NULL) {
523 console_setfile (stdin, inputdev);
524 }
525
wdenk5f535fe2003-09-18 09:21:33 +0000526 gd->flags |= GD_FLG_DEVINIT; /* device initialization completed */
527
wdenk47d1a6e2002-11-03 00:01:44 +0000528#ifndef CFG_CONSOLE_INFO_QUIET
wdenk47cd00f2003-03-06 13:39:27 +0000529 /* Print information */
wdenk4b9206e2004-03-23 22:14:11 +0000530 puts ("In: ");
wdenk47d1a6e2002-11-03 00:01:44 +0000531 if (stdio_devices[stdin] == NULL) {
wdenk4b9206e2004-03-23 22:14:11 +0000532 puts ("No input devices available!\n");
wdenk47d1a6e2002-11-03 00:01:44 +0000533 } else {
534 printf ("%s\n", stdio_devices[stdin]->name);
535 }
536
wdenk4b9206e2004-03-23 22:14:11 +0000537 puts ("Out: ");
wdenk47d1a6e2002-11-03 00:01:44 +0000538 if (stdio_devices[stdout] == NULL) {
wdenk4b9206e2004-03-23 22:14:11 +0000539 puts ("No output devices available!\n");
wdenk47d1a6e2002-11-03 00:01:44 +0000540 } else {
541 printf ("%s\n", stdio_devices[stdout]->name);
542 }
543
wdenk4b9206e2004-03-23 22:14:11 +0000544 puts ("Err: ");
wdenk47d1a6e2002-11-03 00:01:44 +0000545 if (stdio_devices[stderr] == NULL) {
wdenk4b9206e2004-03-23 22:14:11 +0000546 puts ("No error devices available!\n");
wdenk47d1a6e2002-11-03 00:01:44 +0000547 } else {
548 printf ("%s\n", stdio_devices[stderr]->name);
549 }
550#endif /* CFG_CONSOLE_INFO_QUIET */
551
552 /* Setting environment variables */
553 for (i = 0; i < 3; i++) {
554 setenv (stdio_names[i], stdio_devices[i]->name);
555 }
556
557#if 0
558 /* If nothing usable installed, use only the initial console */
559 if ((stdio_devices[stdin] == NULL) && (stdio_devices[stdout] == NULL))
560 return (0);
561#endif
562
563 return (0);
564}
565
566#endif /* CFG_CONSOLE_IS_IN_ENV */