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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>
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +020027#include <stdio_dev.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
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020032#ifdef CONFIG_SYS_CONSOLE_IS_IN_ENV
wdenk47d1a6e2002-11-03 00:01:44 +000033/*
34 * if overwrite_console returns 1, the stdin, stderr and stdout
35 * are switched to the serial port, else the settings in the
36 * environment are used
37 */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020038#ifdef CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +010039extern int overwrite_console(void);
40#define OVERWRITE_CONSOLE overwrite_console()
wdenk47d1a6e2002-11-03 00:01:44 +000041#else
wdenk83e40ba2005-03-31 18:42:15 +000042#define OVERWRITE_CONSOLE 0
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020043#endif /* CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE */
wdenk47d1a6e2002-11-03 00:01:44 +000044
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020045#endif /* CONFIG_SYS_CONSOLE_IS_IN_ENV */
wdenk47d1a6e2002-11-03 00:01:44 +000046
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +020047static int console_setfile(int file, struct stdio_dev * dev)
wdenk47d1a6e2002-11-03 00:01:44 +000048{
49 int error = 0;
50
51 if (dev == NULL)
52 return -1;
53
54 switch (file) {
55 case stdin:
56 case stdout:
57 case stderr:
58 /* Start new device */
59 if (dev->start) {
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +010060 error = dev->start();
wdenk47d1a6e2002-11-03 00:01:44 +000061 /* If it's not started dont use it */
62 if (error < 0)
63 break;
64 }
65
66 /* Assign the new device (leaving the existing one started) */
67 stdio_devices[file] = dev;
68
69 /*
70 * Update monitor functions
71 * (to use the console stuff by other applications)
72 */
73 switch (file) {
74 case stdin:
wdenk27b207f2003-07-24 23:38:38 +000075 gd->jt[XF_getc] = dev->getc;
76 gd->jt[XF_tstc] = dev->tstc;
wdenk47d1a6e2002-11-03 00:01:44 +000077 break;
78 case stdout:
wdenk27b207f2003-07-24 23:38:38 +000079 gd->jt[XF_putc] = dev->putc;
80 gd->jt[XF_puts] = dev->puts;
81 gd->jt[XF_printf] = printf;
wdenk47d1a6e2002-11-03 00:01:44 +000082 break;
83 }
84 break;
85
86 default: /* Invalid file ID */
87 error = -1;
88 }
89 return error;
90}
91
Gary Jennejohn16a28ef2008-11-06 15:04:23 +010092#if defined(CONFIG_CONSOLE_MUX)
93/** Console I/O multiplexing *******************************************/
94
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +020095static struct stdio_dev *tstcdev;
96struct stdio_dev **console_devices[MAX_FILES];
Gary Jennejohn16a28ef2008-11-06 15:04:23 +010097int cd_count[MAX_FILES];
98
99/*
100 * This depends on tstc() always being called before getc().
101 * This is guaranteed to be true because this routine is called
102 * only from fgetc() which assures it.
103 * No attempt is made to demultiplex multiple input sources.
104 */
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100105static int console_getc(int file)
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100106{
107 unsigned char ret;
108
109 /* This is never called with testcdev == NULL */
110 ret = tstcdev->getc();
111 tstcdev = NULL;
112 return ret;
113}
114
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100115static int console_tstc(int file)
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100116{
117 int i, ret;
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200118 struct stdio_dev *dev;
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100119
120 disable_ctrlc(1);
121 for (i = 0; i < cd_count[file]; i++) {
122 dev = console_devices[file][i];
123 if (dev->tstc != NULL) {
124 ret = dev->tstc();
125 if (ret > 0) {
126 tstcdev = dev;
127 disable_ctrlc(0);
128 return ret;
129 }
130 }
131 }
132 disable_ctrlc(0);
133
134 return 0;
135}
136
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100137static void console_putc(int file, const char c)
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100138{
139 int i;
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200140 struct stdio_dev *dev;
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100141
142 for (i = 0; i < cd_count[file]; i++) {
143 dev = console_devices[file][i];
144 if (dev->putc != NULL)
145 dev->putc(c);
146 }
147}
148
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100149static void console_puts(int file, const char *s)
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100150{
151 int i;
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200152 struct stdio_dev *dev;
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100153
154 for (i = 0; i < cd_count[file]; i++) {
155 dev = console_devices[file][i];
156 if (dev->puts != NULL)
157 dev->puts(s);
158 }
159}
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100160
161static inline void console_printdevs(int file)
162{
163 iomux_printdevs(file);
164}
165
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200166static inline void console_doenv(int file, struct stdio_dev *dev)
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100167{
168 iomux_doenv(file, dev->name);
169}
170#else
171static inline int console_getc(int file)
172{
173 return stdio_devices[file]->getc();
174}
175
176static inline int console_tstc(int file)
177{
178 return stdio_devices[file]->tstc();
179}
180
181static inline void console_putc(int file, const char c)
182{
183 stdio_devices[file]->putc(c);
184}
185
186static inline void console_puts(int file, const char *s)
187{
188 stdio_devices[file]->puts(s);
189}
190
191static inline void console_printdevs(int file)
192{
193 printf("%s\n", stdio_devices[file]->name);
194}
195
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200196static inline void console_doenv(int file, struct stdio_dev *dev)
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100197{
198 console_setfile(file, dev);
199}
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100200#endif /* defined(CONFIG_CONSOLE_MUX) */
201
wdenk47d1a6e2002-11-03 00:01:44 +0000202/** U-Boot INITIAL CONSOLE-NOT COMPATIBLE FUNCTIONS *************************/
203
Wolfgang Denkd9c27252010-06-20 17:14:14 +0200204int serial_printf(const char *fmt, ...)
wdenk47d1a6e2002-11-03 00:01:44 +0000205{
206 va_list args;
207 uint i;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200208 char printbuffer[CONFIG_SYS_PBSIZE];
wdenk47d1a6e2002-11-03 00:01:44 +0000209
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100210 va_start(args, fmt);
wdenk47d1a6e2002-11-03 00:01:44 +0000211
212 /* For this to work, printbuffer must be larger than
213 * anything we ever want to print.
214 */
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100215 i = vsprintf(printbuffer, fmt, args);
216 va_end(args);
wdenk47d1a6e2002-11-03 00:01:44 +0000217
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100218 serial_puts(printbuffer);
Wolfgang Denkd9c27252010-06-20 17:14:14 +0200219 return i;
wdenk47d1a6e2002-11-03 00:01:44 +0000220}
221
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100222int fgetc(int file)
wdenk47d1a6e2002-11-03 00:01:44 +0000223{
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100224 if (file < MAX_FILES) {
225#if defined(CONFIG_CONSOLE_MUX)
226 /*
227 * Effectively poll for input wherever it may be available.
228 */
229 for (;;) {
230 /*
231 * Upper layer may have already called tstc() so
232 * check for that first.
233 */
234 if (tstcdev != NULL)
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100235 return console_getc(file);
236 console_tstc(file);
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100237#ifdef CONFIG_WATCHDOG
238 /*
239 * If the watchdog must be rate-limited then it should
240 * already be handled in board-specific code.
241 */
242 udelay(1);
243#endif
244 }
245#else
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100246 return console_getc(file);
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100247#endif
248 }
wdenk47d1a6e2002-11-03 00:01:44 +0000249
250 return -1;
251}
252
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100253int ftstc(int file)
wdenk47d1a6e2002-11-03 00:01:44 +0000254{
255 if (file < MAX_FILES)
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100256 return console_tstc(file);
wdenk47d1a6e2002-11-03 00:01:44 +0000257
258 return -1;
259}
260
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100261void fputc(int file, const char c)
wdenk47d1a6e2002-11-03 00:01:44 +0000262{
263 if (file < MAX_FILES)
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100264 console_putc(file, c);
wdenk47d1a6e2002-11-03 00:01:44 +0000265}
266
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100267void fputs(int file, const char *s)
wdenk47d1a6e2002-11-03 00:01:44 +0000268{
269 if (file < MAX_FILES)
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100270 console_puts(file, s);
wdenk47d1a6e2002-11-03 00:01:44 +0000271}
272
Wolfgang Denkd9c27252010-06-20 17:14:14 +0200273int fprintf(int file, const char *fmt, ...)
wdenk47d1a6e2002-11-03 00:01:44 +0000274{
275 va_list args;
276 uint i;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200277 char printbuffer[CONFIG_SYS_PBSIZE];
wdenk47d1a6e2002-11-03 00:01:44 +0000278
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100279 va_start(args, fmt);
wdenk47d1a6e2002-11-03 00:01:44 +0000280
281 /* For this to work, printbuffer must be larger than
282 * anything we ever want to print.
283 */
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100284 i = vsprintf(printbuffer, fmt, args);
285 va_end(args);
wdenk47d1a6e2002-11-03 00:01:44 +0000286
287 /* Send to desired file */
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100288 fputs(file, printbuffer);
Wolfgang Denkd9c27252010-06-20 17:14:14 +0200289 return i;
wdenk47d1a6e2002-11-03 00:01:44 +0000290}
291
292/** U-Boot INITIAL CONSOLE-COMPATIBLE FUNCTION *****************************/
293
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100294int getc(void)
wdenk47d1a6e2002-11-03 00:01:44 +0000295{
Mark Jacksonf5c3ba72008-08-25 19:21:30 +0100296#ifdef CONFIG_DISABLE_CONSOLE
297 if (gd->flags & GD_FLG_DISABLE_CONSOLE)
298 return 0;
299#endif
300
wdenk47d1a6e2002-11-03 00:01:44 +0000301 if (gd->flags & GD_FLG_DEVINIT) {
302 /* Get from the standard input */
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100303 return fgetc(stdin);
wdenk47d1a6e2002-11-03 00:01:44 +0000304 }
305
306 /* Send directly to the handler */
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100307 return serial_getc();
wdenk47d1a6e2002-11-03 00:01:44 +0000308}
309
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100310int tstc(void)
wdenk47d1a6e2002-11-03 00:01:44 +0000311{
Mark Jacksonf5c3ba72008-08-25 19:21:30 +0100312#ifdef CONFIG_DISABLE_CONSOLE
313 if (gd->flags & GD_FLG_DISABLE_CONSOLE)
314 return 0;
315#endif
316
wdenk47d1a6e2002-11-03 00:01:44 +0000317 if (gd->flags & GD_FLG_DEVINIT) {
318 /* Test the standard input */
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100319 return ftstc(stdin);
wdenk47d1a6e2002-11-03 00:01:44 +0000320 }
321
322 /* Send directly to the handler */
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100323 return serial_tstc();
wdenk47d1a6e2002-11-03 00:01:44 +0000324}
325
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100326void putc(const char c)
wdenk47d1a6e2002-11-03 00:01:44 +0000327{
wdenka6cccae2004-02-06 21:48:22 +0000328#ifdef CONFIG_SILENT_CONSOLE
329 if (gd->flags & GD_FLG_SILENT)
wdenkf6e20fc2004-02-08 19:38:38 +0000330 return;
wdenka6cccae2004-02-06 21:48:22 +0000331#endif
332
Mark Jacksonf5c3ba72008-08-25 19:21:30 +0100333#ifdef CONFIG_DISABLE_CONSOLE
334 if (gd->flags & GD_FLG_DISABLE_CONSOLE)
335 return;
336#endif
337
wdenk47d1a6e2002-11-03 00:01:44 +0000338 if (gd->flags & GD_FLG_DEVINIT) {
339 /* Send to the standard output */
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100340 fputc(stdout, c);
wdenk47d1a6e2002-11-03 00:01:44 +0000341 } else {
342 /* Send directly to the handler */
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100343 serial_putc(c);
wdenk47d1a6e2002-11-03 00:01:44 +0000344 }
345}
346
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100347void puts(const char *s)
wdenk47d1a6e2002-11-03 00:01:44 +0000348{
wdenka6cccae2004-02-06 21:48:22 +0000349#ifdef CONFIG_SILENT_CONSOLE
350 if (gd->flags & GD_FLG_SILENT)
351 return;
352#endif
353
Mark Jacksonf5c3ba72008-08-25 19:21:30 +0100354#ifdef CONFIG_DISABLE_CONSOLE
355 if (gd->flags & GD_FLG_DISABLE_CONSOLE)
356 return;
357#endif
358
wdenk47d1a6e2002-11-03 00:01:44 +0000359 if (gd->flags & GD_FLG_DEVINIT) {
360 /* Send to the standard output */
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100361 fputs(stdout, s);
wdenk47d1a6e2002-11-03 00:01:44 +0000362 } else {
363 /* Send directly to the handler */
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100364 serial_puts(s);
wdenk47d1a6e2002-11-03 00:01:44 +0000365 }
366}
367
Wolfgang Denkd9c27252010-06-20 17:14:14 +0200368int printf(const char *fmt, ...)
wdenk47d1a6e2002-11-03 00:01:44 +0000369{
370 va_list args;
371 uint i;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200372 char printbuffer[CONFIG_SYS_PBSIZE];
wdenk47d1a6e2002-11-03 00:01:44 +0000373
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100374 va_start(args, fmt);
wdenk47d1a6e2002-11-03 00:01:44 +0000375
376 /* For this to work, printbuffer must be larger than
377 * anything we ever want to print.
378 */
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100379 i = vsprintf(printbuffer, fmt, args);
380 va_end(args);
wdenk47d1a6e2002-11-03 00:01:44 +0000381
382 /* Print the string */
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100383 puts(printbuffer);
Wolfgang Denkd9c27252010-06-20 17:14:14 +0200384 return i;
wdenk47d1a6e2002-11-03 00:01:44 +0000385}
386
Wolfgang Denkd9c27252010-06-20 17:14:14 +0200387int vprintf(const char *fmt, va_list args)
wdenk6dd652f2003-06-19 23:40:20 +0000388{
389 uint i;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200390 char printbuffer[CONFIG_SYS_PBSIZE];
wdenk6dd652f2003-06-19 23:40:20 +0000391
392 /* For this to work, printbuffer must be larger than
393 * anything we ever want to print.
394 */
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100395 i = vsprintf(printbuffer, fmt, args);
wdenk6dd652f2003-06-19 23:40:20 +0000396
397 /* Print the string */
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100398 puts(printbuffer);
Wolfgang Denkd9c27252010-06-20 17:14:14 +0200399 return i;
wdenk6dd652f2003-06-19 23:40:20 +0000400}
401
wdenk47d1a6e2002-11-03 00:01:44 +0000402/* test if ctrl-c was pressed */
403static int ctrlc_disabled = 0; /* see disable_ctrl() */
404static int ctrlc_was_pressed = 0;
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100405int ctrlc(void)
wdenk47d1a6e2002-11-03 00:01:44 +0000406{
wdenk47d1a6e2002-11-03 00:01:44 +0000407 if (!ctrlc_disabled && gd->have_console) {
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100408 if (tstc()) {
409 switch (getc()) {
wdenk47d1a6e2002-11-03 00:01:44 +0000410 case 0x03: /* ^C - Control C */
411 ctrlc_was_pressed = 1;
412 return 1;
413 default:
414 break;
415 }
416 }
417 }
418 return 0;
419}
420
421/* pass 1 to disable ctrlc() checking, 0 to enable.
422 * returns previous state
423 */
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100424int disable_ctrlc(int disable)
wdenk47d1a6e2002-11-03 00:01:44 +0000425{
426 int prev = ctrlc_disabled; /* save previous state */
427
428 ctrlc_disabled = disable;
429 return prev;
430}
431
432int had_ctrlc (void)
433{
434 return ctrlc_was_pressed;
435}
436
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100437void clear_ctrlc(void)
wdenk47d1a6e2002-11-03 00:01:44 +0000438{
439 ctrlc_was_pressed = 0;
440}
441
442#ifdef CONFIG_MODEM_SUPPORT_DEBUG
443char screen[1024];
444char *cursor = screen;
445int once = 0;
446inline void dbg(const char *fmt, ...)
447{
448 va_list args;
449 uint i;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200450 char printbuffer[CONFIG_SYS_PBSIZE];
wdenk47d1a6e2002-11-03 00:01:44 +0000451
452 if (!once) {
453 memset(screen, 0, sizeof(screen));
454 once++;
455 }
456
457 va_start(args, fmt);
458
459 /* For this to work, printbuffer must be larger than
460 * anything we ever want to print.
461 */
462 i = vsprintf(printbuffer, fmt, args);
463 va_end(args);
464
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100465 if ((screen + sizeof(screen) - 1 - cursor)
466 < strlen(printbuffer) + 1) {
wdenk47d1a6e2002-11-03 00:01:44 +0000467 memset(screen, 0, sizeof(screen));
468 cursor = screen;
469 }
470 sprintf(cursor, printbuffer);
471 cursor += strlen(printbuffer);
472
473}
474#else
475inline void dbg(const char *fmt, ...)
476{
477}
478#endif
479
480/** U-Boot INIT FUNCTIONS *************************************************/
481
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200482struct stdio_dev *search_device(int flags, char *name)
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200483{
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200484 struct stdio_dev *dev;
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200485
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200486 dev = stdio_get_by_name(name);
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200487
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100488 if (dev && (dev->flags & flags))
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200489 return dev;
490
491 return NULL;
492}
493
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100494int console_assign(int file, char *devname)
wdenk47d1a6e2002-11-03 00:01:44 +0000495{
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200496 int flag;
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200497 struct stdio_dev *dev;
wdenk47d1a6e2002-11-03 00:01:44 +0000498
499 /* Check for valid file */
500 switch (file) {
501 case stdin:
502 flag = DEV_FLAGS_INPUT;
503 break;
504 case stdout:
505 case stderr:
506 flag = DEV_FLAGS_OUTPUT;
507 break;
508 default:
509 return -1;
510 }
511
512 /* Check for valid device name */
513
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200514 dev = search_device(flag, devname);
wdenk47d1a6e2002-11-03 00:01:44 +0000515
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100516 if (dev)
517 return console_setfile(file, dev);
wdenk47d1a6e2002-11-03 00:01:44 +0000518
519 return -1;
520}
521
522/* Called before relocation - use serial functions */
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100523int console_init_f(void)
wdenk47d1a6e2002-11-03 00:01:44 +0000524{
wdenk47d1a6e2002-11-03 00:01:44 +0000525 gd->have_console = 1;
wdenkf72da342003-10-10 10:05:42 +0000526
527#ifdef CONFIG_SILENT_CONSOLE
528 if (getenv("silent") != NULL)
529 gd->flags |= GD_FLG_SILENT;
530#endif
531
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100532 return 0;
wdenk47d1a6e2002-11-03 00:01:44 +0000533}
534
Jean-Christophe PLAGNIOL-VILLARD7e3be7c2009-05-16 12:14:55 +0200535void stdio_print_current_devices(void)
536{
David Brownell52f6c342009-08-30 11:05:29 -0700537#ifndef CONFIG_SYS_CONSOLE_INFO_QUIET
Jean-Christophe PLAGNIOL-VILLARD7e3be7c2009-05-16 12:14:55 +0200538 /* Print information */
539 puts("In: ");
540 if (stdio_devices[stdin] == NULL) {
541 puts("No input devices available!\n");
542 } else {
543 printf ("%s\n", stdio_devices[stdin]->name);
544 }
545
546 puts("Out: ");
547 if (stdio_devices[stdout] == NULL) {
548 puts("No output devices available!\n");
549 } else {
550 printf ("%s\n", stdio_devices[stdout]->name);
551 }
552
553 puts("Err: ");
554 if (stdio_devices[stderr] == NULL) {
555 puts("No error devices available!\n");
556 } else {
557 printf ("%s\n", stdio_devices[stderr]->name);
558 }
559#endif /* CONFIG_SYS_CONSOLE_INFO_QUIET */
560}
561
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200562#ifdef CONFIG_SYS_CONSOLE_IS_IN_ENV
wdenk47d1a6e2002-11-03 00:01:44 +0000563/* Called after the relocation - use desired console functions */
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100564int console_init_r(void)
wdenk47d1a6e2002-11-03 00:01:44 +0000565{
566 char *stdinname, *stdoutname, *stderrname;
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200567 struct stdio_dev *inputdev = NULL, *outputdev = NULL, *errdev = NULL;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200568#ifdef CONFIG_SYS_CONSOLE_ENV_OVERWRITE
wdenk6e592382004-04-18 17:39:38 +0000569 int i;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200570#endif /* CONFIG_SYS_CONSOLE_ENV_OVERWRITE */
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100571#ifdef CONFIG_CONSOLE_MUX
572 int iomux_err = 0;
573#endif
wdenk47d1a6e2002-11-03 00:01:44 +0000574
575 /* set default handlers at first */
wdenk27b207f2003-07-24 23:38:38 +0000576 gd->jt[XF_getc] = serial_getc;
577 gd->jt[XF_tstc] = serial_tstc;
578 gd->jt[XF_putc] = serial_putc;
579 gd->jt[XF_puts] = serial_puts;
580 gd->jt[XF_printf] = serial_printf;
wdenk47d1a6e2002-11-03 00:01:44 +0000581
582 /* stdin stdout and stderr are in environment */
583 /* scan for it */
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100584 stdinname = getenv("stdin");
585 stdoutname = getenv("stdout");
586 stderrname = getenv("stderr");
wdenk47d1a6e2002-11-03 00:01:44 +0000587
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200588 if (OVERWRITE_CONSOLE == 0) { /* if not overwritten by config switch */
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100589 inputdev = search_device(DEV_FLAGS_INPUT, stdinname);
590 outputdev = search_device(DEV_FLAGS_OUTPUT, stdoutname);
591 errdev = search_device(DEV_FLAGS_OUTPUT, stderrname);
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100592#ifdef CONFIG_CONSOLE_MUX
593 iomux_err = iomux_doenv(stdin, stdinname);
594 iomux_err += iomux_doenv(stdout, stdoutname);
595 iomux_err += iomux_doenv(stderr, stderrname);
596 if (!iomux_err)
597 /* Successful, so skip all the code below. */
598 goto done;
599#endif
wdenk47d1a6e2002-11-03 00:01:44 +0000600 }
601 /* if the devices are overwritten or not found, use default device */
602 if (inputdev == NULL) {
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100603 inputdev = search_device(DEV_FLAGS_INPUT, "serial");
wdenk47d1a6e2002-11-03 00:01:44 +0000604 }
605 if (outputdev == NULL) {
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100606 outputdev = search_device(DEV_FLAGS_OUTPUT, "serial");
wdenk47d1a6e2002-11-03 00:01:44 +0000607 }
608 if (errdev == NULL) {
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100609 errdev = search_device(DEV_FLAGS_OUTPUT, "serial");
wdenk47d1a6e2002-11-03 00:01:44 +0000610 }
611 /* Initializes output console first */
612 if (outputdev != NULL) {
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100613 /* need to set a console if not done above. */
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100614 console_doenv(stdout, outputdev);
wdenk47d1a6e2002-11-03 00:01:44 +0000615 }
616 if (errdev != NULL) {
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100617 /* need to set a console if not done above. */
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100618 console_doenv(stderr, errdev);
wdenk47d1a6e2002-11-03 00:01:44 +0000619 }
620 if (inputdev != NULL) {
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100621 /* need to set a console if not done above. */
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100622 console_doenv(stdin, inputdev);
wdenk47d1a6e2002-11-03 00:01:44 +0000623 }
624
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100625#ifdef CONFIG_CONSOLE_MUX
626done:
627#endif
628
wdenk5f535fe2003-09-18 09:21:33 +0000629 gd->flags |= GD_FLG_DEVINIT; /* device initialization completed */
630
Jean-Christophe PLAGNIOL-VILLARD7e3be7c2009-05-16 12:14:55 +0200631 stdio_print_current_devices();
wdenk47d1a6e2002-11-03 00:01:44 +0000632
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200633#ifdef CONFIG_SYS_CONSOLE_ENV_OVERWRITE
wdenk47d1a6e2002-11-03 00:01:44 +0000634 /* set the environment variables (will overwrite previous env settings) */
635 for (i = 0; i < 3; i++) {
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100636 setenv(stdio_names[i], stdio_devices[i]->name);
wdenk47d1a6e2002-11-03 00:01:44 +0000637 }
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200638#endif /* CONFIG_SYS_CONSOLE_ENV_OVERWRITE */
wdenk47d1a6e2002-11-03 00:01:44 +0000639
640#if 0
641 /* If nothing usable installed, use only the initial console */
642 if ((stdio_devices[stdin] == NULL) && (stdio_devices[stdout] == NULL))
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100643 return 0;
wdenk47d1a6e2002-11-03 00:01:44 +0000644#endif
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100645 return 0;
wdenk47d1a6e2002-11-03 00:01:44 +0000646}
647
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200648#else /* CONFIG_SYS_CONSOLE_IS_IN_ENV */
wdenk47d1a6e2002-11-03 00:01:44 +0000649
650/* Called after the relocation - use desired console functions */
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100651int console_init_r(void)
wdenk47d1a6e2002-11-03 00:01:44 +0000652{
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200653 struct stdio_dev *inputdev = NULL, *outputdev = NULL;
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200654 int i;
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200655 struct list_head *list = stdio_get_list();
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200656 struct list_head *pos;
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200657 struct stdio_dev *dev;
wdenk47d1a6e2002-11-03 00:01:44 +0000658
wdenkd791b1d2003-04-20 14:04:18 +0000659#ifdef CONFIG_SPLASH_SCREEN
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100660 /*
661 * suppress all output if splash screen is enabled and we have
Anatolij Gustschina7490812010-03-16 15:29:33 +0100662 * a bmp to display. We redirect the output from frame buffer
663 * console to serial console in this case or suppress it if
664 * "silent" mode was requested.
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100665 */
Anatolij Gustschina7490812010-03-16 15:29:33 +0100666 if (getenv("splashimage") != NULL) {
667 if (!(gd->flags & GD_FLG_SILENT))
668 outputdev = search_device (DEV_FLAGS_OUTPUT, "serial");
669 }
wdenkf72da342003-10-10 10:05:42 +0000670#endif
671
wdenk47d1a6e2002-11-03 00:01:44 +0000672 /* Scan devices looking for input and output devices */
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200673 list_for_each(pos, list) {
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200674 dev = list_entry(pos, struct stdio_dev, list);
wdenk47d1a6e2002-11-03 00:01:44 +0000675
676 if ((dev->flags & DEV_FLAGS_INPUT) && (inputdev == NULL)) {
677 inputdev = dev;
678 }
679 if ((dev->flags & DEV_FLAGS_OUTPUT) && (outputdev == NULL)) {
680 outputdev = dev;
681 }
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200682 if(inputdev && outputdev)
683 break;
wdenk47d1a6e2002-11-03 00:01:44 +0000684 }
685
686 /* Initializes output console first */
687 if (outputdev != NULL) {
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100688 console_setfile(stdout, outputdev);
689 console_setfile(stderr, outputdev);
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100690#ifdef CONFIG_CONSOLE_MUX
691 console_devices[stdout][0] = outputdev;
692 console_devices[stderr][0] = outputdev;
693#endif
wdenk47d1a6e2002-11-03 00:01:44 +0000694 }
695
696 /* Initializes input console */
697 if (inputdev != NULL) {
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100698 console_setfile(stdin, inputdev);
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100699#ifdef CONFIG_CONSOLE_MUX
700 console_devices[stdin][0] = inputdev;
701#endif
wdenk47d1a6e2002-11-03 00:01:44 +0000702 }
703
wdenk5f535fe2003-09-18 09:21:33 +0000704 gd->flags |= GD_FLG_DEVINIT; /* device initialization completed */
705
Jean-Christophe PLAGNIOL-VILLARD7e3be7c2009-05-16 12:14:55 +0200706 stdio_print_current_devices();
wdenk47d1a6e2002-11-03 00:01:44 +0000707
708 /* Setting environment variables */
709 for (i = 0; i < 3; i++) {
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100710 setenv(stdio_names[i], stdio_devices[i]->name);
wdenk47d1a6e2002-11-03 00:01:44 +0000711 }
712
713#if 0
714 /* If nothing usable installed, use only the initial console */
715 if ((stdio_devices[stdin] == NULL) && (stdio_devices[stdout] == NULL))
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100716 return 0;
wdenk47d1a6e2002-11-03 00:01:44 +0000717#endif
718
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100719 return 0;
wdenk47d1a6e2002-11-03 00:01:44 +0000720}
721
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200722#endif /* CONFIG_SYS_CONSOLE_IS_IN_ENV */