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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 *
Wolfgang Denk1a459662013-07-08 09:37:19 +02005 * SPDX-License-Identifier: GPL-2.0+
wdenk47d1a6e2002-11-03 00:01:44 +00006 */
7
8#include <common.h>
Simon Glass24b852a2015-11-08 23:47:45 -07009#include <console.h>
Simon Glassd6ea5302015-06-23 15:38:33 -060010#include <debug_uart.h>
wdenk47d1a6e2002-11-03 00:01:44 +000011#include <stdarg.h>
Jeroen Hofstee482f4692014-10-08 22:57:48 +020012#include <iomux.h>
wdenk47d1a6e2002-11-03 00:01:44 +000013#include <malloc.h>
Simon Glass91b136c2013-11-10 10:27:01 -070014#include <os.h>
Joe Hershberger849d5d92012-12-11 22:16:29 -060015#include <serial.h>
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +020016#include <stdio_dev.h>
wdenk27b207f2003-07-24 23:38:38 +000017#include <exports.h>
Joe Hershberger849d5d92012-12-11 22:16:29 -060018#include <environment.h>
Andreas J. Reichel64407462016-07-13 12:56:51 +020019#include <watchdog.h>
wdenk47d1a6e2002-11-03 00:01:44 +000020
Wolfgang Denkd87080b2006-03-31 18:32:53 +020021DECLARE_GLOBAL_DATA_PTR;
22
Joe Hershberger849d5d92012-12-11 22:16:29 -060023static int on_console(const char *name, const char *value, enum env_op op,
24 int flags)
25{
26 int console = -1;
27
28 /* Check for console redirection */
29 if (strcmp(name, "stdin") == 0)
30 console = stdin;
31 else if (strcmp(name, "stdout") == 0)
32 console = stdout;
33 else if (strcmp(name, "stderr") == 0)
34 console = stderr;
35
36 /* if not actually setting a console variable, we don't care */
37 if (console == -1 || (gd->flags & GD_FLG_DEVINIT) == 0)
38 return 0;
39
40 switch (op) {
41 case env_op_create:
42 case env_op_overwrite:
43
Simon Glassb0265422017-01-16 07:03:26 -070044#if CONFIG_IS_ENABLED(CONSOLE_MUX)
Joe Hershberger849d5d92012-12-11 22:16:29 -060045 if (iomux_doenv(console, value))
46 return 1;
47#else
48 /* Try assigning specified device */
49 if (console_assign(console, value) < 0)
50 return 1;
Simon Glassb0265422017-01-16 07:03:26 -070051#endif
Joe Hershberger849d5d92012-12-11 22:16:29 -060052 return 0;
53
54 case env_op_delete:
55 if ((flags & H_FORCE) == 0)
56 printf("Can't delete \"%s\"\n", name);
57 return 1;
58
59 default:
60 return 0;
61 }
62}
63U_BOOT_ENV_CALLBACK(console, on_console);
64
Joe Hershbergere080d542012-12-11 22:16:30 -060065#ifdef CONFIG_SILENT_CONSOLE
66static int on_silent(const char *name, const char *value, enum env_op op,
67 int flags)
68{
Simon Glass98af8792016-10-17 20:12:35 -060069#if !CONFIG_IS_ENABLED(CONFIG_SILENT_CONSOLE_UPDATE_ON_SET)
Joe Hershbergere080d542012-12-11 22:16:30 -060070 if (flags & H_INTERACTIVE)
71 return 0;
72#endif
Simon Glass98af8792016-10-17 20:12:35 -060073#if !CONFIG_IS_ENABLED(CONFIG_SILENT_CONSOLE_UPDATE_ON_RELOC)
Joe Hershbergere080d542012-12-11 22:16:30 -060074 if ((flags & H_INTERACTIVE) == 0)
75 return 0;
76#endif
77
78 if (value != NULL)
79 gd->flags |= GD_FLG_SILENT;
80 else
81 gd->flags &= ~GD_FLG_SILENT;
82
83 return 0;
84}
85U_BOOT_ENV_CALLBACK(silent, on_silent);
86#endif
87
Simon Glassb0265422017-01-16 07:03:26 -070088#if CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV)
wdenk47d1a6e2002-11-03 00:01:44 +000089/*
90 * if overwrite_console returns 1, the stdin, stderr and stdout
91 * are switched to the serial port, else the settings in the
92 * environment are used
93 */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020094#ifdef CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +010095extern int overwrite_console(void);
96#define OVERWRITE_CONSOLE overwrite_console()
wdenk47d1a6e2002-11-03 00:01:44 +000097#else
wdenk83e40ba2005-03-31 18:42:15 +000098#define OVERWRITE_CONSOLE 0
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020099#endif /* CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE */
wdenk47d1a6e2002-11-03 00:01:44 +0000100
Simon Glassb0265422017-01-16 07:03:26 -0700101#endif /* CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV) */
wdenk47d1a6e2002-11-03 00:01:44 +0000102
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200103static int console_setfile(int file, struct stdio_dev * dev)
wdenk47d1a6e2002-11-03 00:01:44 +0000104{
105 int error = 0;
106
107 if (dev == NULL)
108 return -1;
109
110 switch (file) {
111 case stdin:
112 case stdout:
113 case stderr:
114 /* Start new device */
115 if (dev->start) {
Simon Glass709ea542014-07-23 06:54:59 -0600116 error = dev->start(dev);
wdenk47d1a6e2002-11-03 00:01:44 +0000117 /* If it's not started dont use it */
118 if (error < 0)
119 break;
120 }
121
122 /* Assign the new device (leaving the existing one started) */
123 stdio_devices[file] = dev;
124
125 /*
126 * Update monitor functions
127 * (to use the console stuff by other applications)
128 */
129 switch (file) {
130 case stdin:
Martin Dorwig49cad542015-01-26 15:22:54 -0700131 gd->jt->getc = getc;
132 gd->jt->tstc = tstc;
wdenk47d1a6e2002-11-03 00:01:44 +0000133 break;
134 case stdout:
Martin Dorwig49cad542015-01-26 15:22:54 -0700135 gd->jt->putc = putc;
136 gd->jt->puts = puts;
137 gd->jt->printf = printf;
wdenk47d1a6e2002-11-03 00:01:44 +0000138 break;
139 }
140 break;
141
142 default: /* Invalid file ID */
143 error = -1;
144 }
145 return error;
146}
147
Simon Glassb0265422017-01-16 07:03:26 -0700148#if CONFIG_IS_ENABLED(CONSOLE_MUX)
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100149/** Console I/O multiplexing *******************************************/
150
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200151static struct stdio_dev *tstcdev;
152struct stdio_dev **console_devices[MAX_FILES];
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100153int cd_count[MAX_FILES];
154
155/*
156 * This depends on tstc() always being called before getc().
157 * This is guaranteed to be true because this routine is called
158 * only from fgetc() which assures it.
159 * No attempt is made to demultiplex multiple input sources.
160 */
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100161static int console_getc(int file)
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100162{
163 unsigned char ret;
164
165 /* This is never called with testcdev == NULL */
Simon Glass709ea542014-07-23 06:54:59 -0600166 ret = tstcdev->getc(tstcdev);
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100167 tstcdev = NULL;
168 return ret;
169}
170
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100171static int console_tstc(int file)
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100172{
173 int i, ret;
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200174 struct stdio_dev *dev;
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100175
176 disable_ctrlc(1);
177 for (i = 0; i < cd_count[file]; i++) {
178 dev = console_devices[file][i];
179 if (dev->tstc != NULL) {
Simon Glass709ea542014-07-23 06:54:59 -0600180 ret = dev->tstc(dev);
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100181 if (ret > 0) {
182 tstcdev = dev;
183 disable_ctrlc(0);
184 return ret;
185 }
186 }
187 }
188 disable_ctrlc(0);
189
190 return 0;
191}
192
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100193static void console_putc(int file, const char c)
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100194{
195 int i;
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200196 struct stdio_dev *dev;
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100197
198 for (i = 0; i < cd_count[file]; i++) {
199 dev = console_devices[file][i];
200 if (dev->putc != NULL)
Simon Glass709ea542014-07-23 06:54:59 -0600201 dev->putc(dev, c);
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100202 }
203}
204
Hans de Goedea8552c72015-05-05 13:13:36 +0200205static void console_puts_noserial(int file, const char *s)
Siarhei Siamashka27669662015-01-08 09:02:31 +0200206{
207 int i;
208 struct stdio_dev *dev;
209
210 for (i = 0; i < cd_count[file]; i++) {
211 dev = console_devices[file][i];
Hans de Goedea8552c72015-05-05 13:13:36 +0200212 if (dev->puts != NULL && strcmp(dev->name, "serial") != 0)
213 dev->puts(dev, s);
Siarhei Siamashka27669662015-01-08 09:02:31 +0200214 }
215}
Siarhei Siamashka27669662015-01-08 09:02:31 +0200216
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100217static void console_puts(int file, const char *s)
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100218{
219 int i;
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200220 struct stdio_dev *dev;
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100221
222 for (i = 0; i < cd_count[file]; i++) {
223 dev = console_devices[file][i];
224 if (dev->puts != NULL)
Simon Glass709ea542014-07-23 06:54:59 -0600225 dev->puts(dev, s);
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100226 }
227}
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100228
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200229static inline void console_doenv(int file, struct stdio_dev *dev)
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100230{
231 iomux_doenv(file, dev->name);
232}
233#else
234static inline int console_getc(int file)
235{
Simon Glass709ea542014-07-23 06:54:59 -0600236 return stdio_devices[file]->getc(stdio_devices[file]);
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100237}
238
239static inline int console_tstc(int file)
240{
Simon Glass709ea542014-07-23 06:54:59 -0600241 return stdio_devices[file]->tstc(stdio_devices[file]);
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100242}
243
244static inline void console_putc(int file, const char c)
245{
Simon Glass709ea542014-07-23 06:54:59 -0600246 stdio_devices[file]->putc(stdio_devices[file], c);
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100247}
248
Hans de Goedea8552c72015-05-05 13:13:36 +0200249static inline void console_puts_noserial(int file, const char *s)
Siarhei Siamashka27669662015-01-08 09:02:31 +0200250{
251 if (strcmp(stdio_devices[file]->name, "serial") != 0)
Hans de Goedea8552c72015-05-05 13:13:36 +0200252 stdio_devices[file]->puts(stdio_devices[file], s);
Siarhei Siamashka27669662015-01-08 09:02:31 +0200253}
Siarhei Siamashka27669662015-01-08 09:02:31 +0200254
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100255static inline void console_puts(int file, const char *s)
256{
Simon Glass709ea542014-07-23 06:54:59 -0600257 stdio_devices[file]->puts(stdio_devices[file], s);
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100258}
259
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200260static inline void console_doenv(int file, struct stdio_dev *dev)
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100261{
262 console_setfile(file, dev);
263}
Simon Glassb0265422017-01-16 07:03:26 -0700264#endif /* CONIFIG_IS_ENABLED(CONSOLE_MUX) */
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100265
wdenk47d1a6e2002-11-03 00:01:44 +0000266/** U-Boot INITIAL CONSOLE-NOT COMPATIBLE FUNCTIONS *************************/
267
Wolfgang Denkd9c27252010-06-20 17:14:14 +0200268int serial_printf(const char *fmt, ...)
wdenk47d1a6e2002-11-03 00:01:44 +0000269{
270 va_list args;
271 uint i;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200272 char printbuffer[CONFIG_SYS_PBSIZE];
wdenk47d1a6e2002-11-03 00:01:44 +0000273
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100274 va_start(args, fmt);
wdenk47d1a6e2002-11-03 00:01:44 +0000275
276 /* For this to work, printbuffer must be larger than
277 * anything we ever want to print.
278 */
Sonny Rao068af6f2011-10-10 09:22:31 +0000279 i = vscnprintf(printbuffer, sizeof(printbuffer), fmt, args);
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100280 va_end(args);
wdenk47d1a6e2002-11-03 00:01:44 +0000281
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100282 serial_puts(printbuffer);
Wolfgang Denkd9c27252010-06-20 17:14:14 +0200283 return i;
wdenk47d1a6e2002-11-03 00:01:44 +0000284}
285
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100286int fgetc(int file)
wdenk47d1a6e2002-11-03 00:01:44 +0000287{
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100288 if (file < MAX_FILES) {
Simon Glassb0265422017-01-16 07:03:26 -0700289#if CONFIG_IS_ENABLED(CONSOLE_MUX)
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100290 /*
291 * Effectively poll for input wherever it may be available.
292 */
293 for (;;) {
Andreas J. Reichel64407462016-07-13 12:56:51 +0200294 WATCHDOG_RESET();
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100295 /*
296 * Upper layer may have already called tstc() so
297 * check for that first.
298 */
299 if (tstcdev != NULL)
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100300 return console_getc(file);
301 console_tstc(file);
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100302#ifdef CONFIG_WATCHDOG
303 /*
304 * If the watchdog must be rate-limited then it should
305 * already be handled in board-specific code.
306 */
307 udelay(1);
308#endif
309 }
310#else
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100311 return console_getc(file);
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100312#endif
313 }
wdenk47d1a6e2002-11-03 00:01:44 +0000314
315 return -1;
316}
317
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100318int ftstc(int file)
wdenk47d1a6e2002-11-03 00:01:44 +0000319{
320 if (file < MAX_FILES)
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100321 return console_tstc(file);
wdenk47d1a6e2002-11-03 00:01:44 +0000322
323 return -1;
324}
325
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100326void fputc(int file, const char c)
wdenk47d1a6e2002-11-03 00:01:44 +0000327{
328 if (file < MAX_FILES)
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100329 console_putc(file, c);
wdenk47d1a6e2002-11-03 00:01:44 +0000330}
331
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100332void fputs(int file, const char *s)
wdenk47d1a6e2002-11-03 00:01:44 +0000333{
334 if (file < MAX_FILES)
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100335 console_puts(file, s);
wdenk47d1a6e2002-11-03 00:01:44 +0000336}
337
Wolfgang Denkd9c27252010-06-20 17:14:14 +0200338int fprintf(int file, const char *fmt, ...)
wdenk47d1a6e2002-11-03 00:01:44 +0000339{
340 va_list args;
341 uint i;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200342 char printbuffer[CONFIG_SYS_PBSIZE];
wdenk47d1a6e2002-11-03 00:01:44 +0000343
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100344 va_start(args, fmt);
wdenk47d1a6e2002-11-03 00:01:44 +0000345
346 /* For this to work, printbuffer must be larger than
347 * anything we ever want to print.
348 */
Sonny Rao068af6f2011-10-10 09:22:31 +0000349 i = vscnprintf(printbuffer, sizeof(printbuffer), fmt, args);
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100350 va_end(args);
wdenk47d1a6e2002-11-03 00:01:44 +0000351
352 /* Send to desired file */
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100353 fputs(file, printbuffer);
Wolfgang Denkd9c27252010-06-20 17:14:14 +0200354 return i;
wdenk47d1a6e2002-11-03 00:01:44 +0000355}
356
357/** U-Boot INITIAL CONSOLE-COMPATIBLE FUNCTION *****************************/
358
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100359int getc(void)
wdenk47d1a6e2002-11-03 00:01:44 +0000360{
Mark Jacksonf5c3ba72008-08-25 19:21:30 +0100361#ifdef CONFIG_DISABLE_CONSOLE
362 if (gd->flags & GD_FLG_DISABLE_CONSOLE)
363 return 0;
364#endif
365
Graeme Russe3e454c2011-08-29 02:14:05 +0000366 if (!gd->have_console)
367 return 0;
368
Simon Glass9854a872015-11-08 23:47:48 -0700369#ifdef CONFIG_CONSOLE_RECORD
370 if (gd->console_in.start) {
371 int ch;
372
373 ch = membuff_getbyte(&gd->console_in);
374 if (ch != -1)
375 return 1;
376 }
377#endif
wdenk47d1a6e2002-11-03 00:01:44 +0000378 if (gd->flags & GD_FLG_DEVINIT) {
379 /* Get from the standard input */
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100380 return fgetc(stdin);
wdenk47d1a6e2002-11-03 00:01:44 +0000381 }
382
383 /* Send directly to the handler */
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100384 return serial_getc();
wdenk47d1a6e2002-11-03 00:01:44 +0000385}
386
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100387int tstc(void)
wdenk47d1a6e2002-11-03 00:01:44 +0000388{
Mark Jacksonf5c3ba72008-08-25 19:21:30 +0100389#ifdef CONFIG_DISABLE_CONSOLE
390 if (gd->flags & GD_FLG_DISABLE_CONSOLE)
391 return 0;
392#endif
393
Graeme Russe3e454c2011-08-29 02:14:05 +0000394 if (!gd->have_console)
395 return 0;
Simon Glass9854a872015-11-08 23:47:48 -0700396#ifdef CONFIG_CONSOLE_RECORD
397 if (gd->console_in.start) {
398 if (membuff_peekbyte(&gd->console_in) != -1)
399 return 1;
400 }
401#endif
wdenk47d1a6e2002-11-03 00:01:44 +0000402 if (gd->flags & GD_FLG_DEVINIT) {
403 /* Test the standard input */
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100404 return ftstc(stdin);
wdenk47d1a6e2002-11-03 00:01:44 +0000405 }
406
407 /* Send directly to the handler */
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100408 return serial_tstc();
wdenk47d1a6e2002-11-03 00:01:44 +0000409}
410
Siarhei Siamashka27669662015-01-08 09:02:31 +0200411#define PRE_CONSOLE_FLUSHPOINT1_SERIAL 0
412#define PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL 1
413
Simon Glass8f925582016-10-17 20:12:36 -0600414#if CONFIG_IS_ENABLED(PRE_CONSOLE_BUFFER)
Graeme Russ9558b482011-09-01 00:48:27 +0000415#define CIRC_BUF_IDX(idx) ((idx) % (unsigned long)CONFIG_PRE_CON_BUF_SZ)
416
417static void pre_console_putc(const char c)
418{
419 char *buffer = (char *)CONFIG_PRE_CON_BUF_ADDR;
420
421 buffer[CIRC_BUF_IDX(gd->precon_buf_idx++)] = c;
422}
423
424static void pre_console_puts(const char *s)
425{
426 while (*s)
427 pre_console_putc(*s++);
428}
429
Siarhei Siamashka27669662015-01-08 09:02:31 +0200430static void print_pre_console_buffer(int flushpoint)
Graeme Russ9558b482011-09-01 00:48:27 +0000431{
Hans de Goedea8552c72015-05-05 13:13:36 +0200432 unsigned long in = 0, out = 0;
433 char *buf_in = (char *)CONFIG_PRE_CON_BUF_ADDR;
434 char buf_out[CONFIG_PRE_CON_BUF_SZ + 1];
Graeme Russ9558b482011-09-01 00:48:27 +0000435
436 if (gd->precon_buf_idx > CONFIG_PRE_CON_BUF_SZ)
Hans de Goedea8552c72015-05-05 13:13:36 +0200437 in = gd->precon_buf_idx - CONFIG_PRE_CON_BUF_SZ;
Graeme Russ9558b482011-09-01 00:48:27 +0000438
Hans de Goedea8552c72015-05-05 13:13:36 +0200439 while (in < gd->precon_buf_idx)
440 buf_out[out++] = buf_in[CIRC_BUF_IDX(in++)];
441
442 buf_out[out] = 0;
443
444 switch (flushpoint) {
445 case PRE_CONSOLE_FLUSHPOINT1_SERIAL:
446 puts(buf_out);
447 break;
448 case PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL:
449 console_puts_noserial(stdout, buf_out);
450 break;
451 }
Graeme Russ9558b482011-09-01 00:48:27 +0000452}
453#else
454static inline void pre_console_putc(const char c) {}
455static inline void pre_console_puts(const char *s) {}
Siarhei Siamashka27669662015-01-08 09:02:31 +0200456static inline void print_pre_console_buffer(int flushpoint) {}
Graeme Russ9558b482011-09-01 00:48:27 +0000457#endif
458
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100459void putc(const char c)
wdenk47d1a6e2002-11-03 00:01:44 +0000460{
Simon Glass91b136c2013-11-10 10:27:01 -0700461#ifdef CONFIG_SANDBOX
Simon Glassda229e42015-06-23 15:38:34 -0600462 /* sandbox can send characters to stdout before it has a console */
Simon Glass093f79a2014-07-23 06:55:07 -0600463 if (!gd || !(gd->flags & GD_FLG_SERIAL_READY)) {
Simon Glass91b136c2013-11-10 10:27:01 -0700464 os_putc(c);
465 return;
466 }
467#endif
Simon Glassd6ea5302015-06-23 15:38:33 -0600468#ifdef CONFIG_DEBUG_UART
469 /* if we don't have a console yet, use the debug UART */
470 if (!gd || !(gd->flags & GD_FLG_SERIAL_READY)) {
471 printch(c);
472 return;
473 }
474#endif
Simon Glass9854a872015-11-08 23:47:48 -0700475#ifdef CONFIG_CONSOLE_RECORD
476 if (gd && (gd->flags & GD_FLG_RECORD) && gd->console_out.start)
477 membuff_putbyte(&gd->console_out, c);
478#endif
wdenka6cccae2004-02-06 21:48:22 +0000479#ifdef CONFIG_SILENT_CONSOLE
480 if (gd->flags & GD_FLG_SILENT)
wdenkf6e20fc2004-02-08 19:38:38 +0000481 return;
wdenka6cccae2004-02-06 21:48:22 +0000482#endif
483
Mark Jacksonf5c3ba72008-08-25 19:21:30 +0100484#ifdef CONFIG_DISABLE_CONSOLE
485 if (gd->flags & GD_FLG_DISABLE_CONSOLE)
486 return;
487#endif
488
Graeme Russe3e454c2011-08-29 02:14:05 +0000489 if (!gd->have_console)
Graeme Russ9558b482011-09-01 00:48:27 +0000490 return pre_console_putc(c);
Graeme Russe3e454c2011-08-29 02:14:05 +0000491
wdenk47d1a6e2002-11-03 00:01:44 +0000492 if (gd->flags & GD_FLG_DEVINIT) {
493 /* Send to the standard output */
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100494 fputc(stdout, c);
wdenk47d1a6e2002-11-03 00:01:44 +0000495 } else {
496 /* Send directly to the handler */
Siarhei Siamashka27669662015-01-08 09:02:31 +0200497 pre_console_putc(c);
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100498 serial_putc(c);
wdenk47d1a6e2002-11-03 00:01:44 +0000499 }
500}
501
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100502void puts(const char *s)
wdenk47d1a6e2002-11-03 00:01:44 +0000503{
Simon Glass91b136c2013-11-10 10:27:01 -0700504#ifdef CONFIG_SANDBOX
Simon Glass093f79a2014-07-23 06:55:07 -0600505 if (!gd || !(gd->flags & GD_FLG_SERIAL_READY)) {
Simon Glass91b136c2013-11-10 10:27:01 -0700506 os_puts(s);
507 return;
508 }
509#endif
Simon Glassd6ea5302015-06-23 15:38:33 -0600510#ifdef CONFIG_DEBUG_UART
511 if (!gd || !(gd->flags & GD_FLG_SERIAL_READY)) {
512 while (*s) {
513 int ch = *s++;
Simon Glass91b136c2013-11-10 10:27:01 -0700514
Simon Glassd6ea5302015-06-23 15:38:33 -0600515 printch(ch);
Simon Glassd6ea5302015-06-23 15:38:33 -0600516 }
517 return;
518 }
519#endif
Simon Glass9854a872015-11-08 23:47:48 -0700520#ifdef CONFIG_CONSOLE_RECORD
521 if (gd && (gd->flags & GD_FLG_RECORD) && gd->console_out.start)
522 membuff_put(&gd->console_out, s, strlen(s));
523#endif
wdenka6cccae2004-02-06 21:48:22 +0000524#ifdef CONFIG_SILENT_CONSOLE
525 if (gd->flags & GD_FLG_SILENT)
526 return;
527#endif
528
Mark Jacksonf5c3ba72008-08-25 19:21:30 +0100529#ifdef CONFIG_DISABLE_CONSOLE
530 if (gd->flags & GD_FLG_DISABLE_CONSOLE)
531 return;
532#endif
533
Graeme Russe3e454c2011-08-29 02:14:05 +0000534 if (!gd->have_console)
Graeme Russ9558b482011-09-01 00:48:27 +0000535 return pre_console_puts(s);
Graeme Russe3e454c2011-08-29 02:14:05 +0000536
wdenk47d1a6e2002-11-03 00:01:44 +0000537 if (gd->flags & GD_FLG_DEVINIT) {
538 /* Send to the standard output */
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100539 fputs(stdout, s);
wdenk47d1a6e2002-11-03 00:01:44 +0000540 } else {
541 /* Send directly to the handler */
Siarhei Siamashka27669662015-01-08 09:02:31 +0200542 pre_console_puts(s);
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100543 serial_puts(s);
wdenk47d1a6e2002-11-03 00:01:44 +0000544 }
545}
546
Simon Glass9854a872015-11-08 23:47:48 -0700547#ifdef CONFIG_CONSOLE_RECORD
548int console_record_init(void)
549{
550 int ret;
551
552 ret = membuff_new(&gd->console_out, CONFIG_CONSOLE_RECORD_OUT_SIZE);
553 if (ret)
554 return ret;
555 ret = membuff_new(&gd->console_in, CONFIG_CONSOLE_RECORD_IN_SIZE);
556
557 return ret;
558}
559
560void console_record_reset(void)
561{
562 membuff_purge(&gd->console_out);
563 membuff_purge(&gd->console_in);
564}
565
566void console_record_reset_enable(void)
567{
568 console_record_reset();
569 gd->flags |= GD_FLG_RECORD;
570}
571#endif
572
wdenk47d1a6e2002-11-03 00:01:44 +0000573/* test if ctrl-c was pressed */
574static int ctrlc_disabled = 0; /* see disable_ctrl() */
575static int ctrlc_was_pressed = 0;
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100576int ctrlc(void)
wdenk47d1a6e2002-11-03 00:01:44 +0000577{
Simon Glass8969ea32014-09-14 12:40:15 -0600578#ifndef CONFIG_SANDBOX
wdenk47d1a6e2002-11-03 00:01:44 +0000579 if (!ctrlc_disabled && gd->have_console) {
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100580 if (tstc()) {
581 switch (getc()) {
wdenk47d1a6e2002-11-03 00:01:44 +0000582 case 0x03: /* ^C - Control C */
583 ctrlc_was_pressed = 1;
584 return 1;
585 default:
586 break;
587 }
588 }
589 }
Simon Glass8969ea32014-09-14 12:40:15 -0600590#endif
591
wdenk47d1a6e2002-11-03 00:01:44 +0000592 return 0;
593}
Pierre Auberta5dffa42014-04-24 10:30:07 +0200594/* Reads user's confirmation.
595 Returns 1 if user's input is "y", "Y", "yes" or "YES"
596*/
597int confirm_yesno(void)
598{
599 int i;
600 char str_input[5];
wdenk47d1a6e2002-11-03 00:01:44 +0000601
Pierre Auberta5dffa42014-04-24 10:30:07 +0200602 /* Flush input */
603 while (tstc())
604 getc();
605 i = 0;
606 while (i < sizeof(str_input)) {
607 str_input[i] = getc();
608 putc(str_input[i]);
609 if (str_input[i] == '\r')
610 break;
611 i++;
612 }
613 putc('\n');
614 if (strncmp(str_input, "y\r", 2) == 0 ||
615 strncmp(str_input, "Y\r", 2) == 0 ||
616 strncmp(str_input, "yes\r", 4) == 0 ||
617 strncmp(str_input, "YES\r", 4) == 0)
618 return 1;
619 return 0;
620}
wdenk47d1a6e2002-11-03 00:01:44 +0000621/* pass 1 to disable ctrlc() checking, 0 to enable.
622 * returns previous state
623 */
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100624int disable_ctrlc(int disable)
wdenk47d1a6e2002-11-03 00:01:44 +0000625{
626 int prev = ctrlc_disabled; /* save previous state */
627
628 ctrlc_disabled = disable;
629 return prev;
630}
631
632int had_ctrlc (void)
633{
634 return ctrlc_was_pressed;
635}
636
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100637void clear_ctrlc(void)
wdenk47d1a6e2002-11-03 00:01:44 +0000638{
639 ctrlc_was_pressed = 0;
640}
641
wdenk47d1a6e2002-11-03 00:01:44 +0000642/** U-Boot INIT FUNCTIONS *************************************************/
643
Mike Frysingerd7be3052010-10-20 07:18:03 -0400644struct stdio_dev *search_device(int flags, const char *name)
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200645{
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200646 struct stdio_dev *dev;
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200647
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200648 dev = stdio_get_by_name(name);
Simon Glassa2931b32016-02-06 14:31:37 -0700649#ifdef CONFIG_VIDCONSOLE_AS_LCD
650 if (!dev && !strcmp(name, "lcd"))
651 dev = stdio_get_by_name("vidconsole");
652#endif
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200653
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100654 if (dev && (dev->flags & flags))
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200655 return dev;
656
657 return NULL;
658}
659
Mike Frysingerd7be3052010-10-20 07:18:03 -0400660int console_assign(int file, const char *devname)
wdenk47d1a6e2002-11-03 00:01:44 +0000661{
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200662 int flag;
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200663 struct stdio_dev *dev;
wdenk47d1a6e2002-11-03 00:01:44 +0000664
665 /* Check for valid file */
666 switch (file) {
667 case stdin:
668 flag = DEV_FLAGS_INPUT;
669 break;
670 case stdout:
671 case stderr:
672 flag = DEV_FLAGS_OUTPUT;
673 break;
674 default:
675 return -1;
676 }
677
678 /* Check for valid device name */
679
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200680 dev = search_device(flag, devname);
wdenk47d1a6e2002-11-03 00:01:44 +0000681
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100682 if (dev)
683 return console_setfile(file, dev);
wdenk47d1a6e2002-11-03 00:01:44 +0000684
685 return -1;
686}
687
Chris Packham43e0a3d2016-09-23 15:59:43 +1200688static void console_update_silent(void)
689{
690#ifdef CONFIG_SILENT_CONSOLE
691 if (getenv("silent") != NULL)
692 gd->flags |= GD_FLG_SILENT;
693 else
694 gd->flags &= ~GD_FLG_SILENT;
695#endif
696}
697
Simon Glassb0895382017-06-15 21:37:50 -0600698int console_announce_r(void)
699{
700#if !CONFIG_IS_ENABLED(PRE_CONSOLE_BUFFER)
701 char buf[DISPLAY_OPTIONS_BANNER_LENGTH];
702
703 display_options_get_banner(false, buf, sizeof(buf));
704
705 console_puts_noserial(stdout, buf);
706#endif
707
708 return 0;
709}
710
wdenk47d1a6e2002-11-03 00:01:44 +0000711/* Called before relocation - use serial functions */
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100712int console_init_f(void)
wdenk47d1a6e2002-11-03 00:01:44 +0000713{
wdenk47d1a6e2002-11-03 00:01:44 +0000714 gd->have_console = 1;
wdenkf72da342003-10-10 10:05:42 +0000715
Chris Packham43e0a3d2016-09-23 15:59:43 +1200716 console_update_silent();
wdenkf72da342003-10-10 10:05:42 +0000717
Siarhei Siamashka27669662015-01-08 09:02:31 +0200718 print_pre_console_buffer(PRE_CONSOLE_FLUSHPOINT1_SERIAL);
Graeme Russ9558b482011-09-01 00:48:27 +0000719
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100720 return 0;
wdenk47d1a6e2002-11-03 00:01:44 +0000721}
722
Jean-Christophe PLAGNIOL-VILLARD7e3be7c2009-05-16 12:14:55 +0200723void stdio_print_current_devices(void)
724{
Jean-Christophe PLAGNIOL-VILLARD7e3be7c2009-05-16 12:14:55 +0200725 /* Print information */
726 puts("In: ");
727 if (stdio_devices[stdin] == NULL) {
728 puts("No input devices available!\n");
729 } else {
730 printf ("%s\n", stdio_devices[stdin]->name);
731 }
732
733 puts("Out: ");
734 if (stdio_devices[stdout] == NULL) {
735 puts("No output devices available!\n");
736 } else {
737 printf ("%s\n", stdio_devices[stdout]->name);
738 }
739
740 puts("Err: ");
741 if (stdio_devices[stderr] == NULL) {
742 puts("No error devices available!\n");
743 } else {
744 printf ("%s\n", stdio_devices[stderr]->name);
745 }
Jean-Christophe PLAGNIOL-VILLARD7e3be7c2009-05-16 12:14:55 +0200746}
747
Simon Glassb0265422017-01-16 07:03:26 -0700748#if CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV)
wdenk47d1a6e2002-11-03 00:01:44 +0000749/* Called after the relocation - use desired console functions */
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100750int console_init_r(void)
wdenk47d1a6e2002-11-03 00:01:44 +0000751{
752 char *stdinname, *stdoutname, *stderrname;
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200753 struct stdio_dev *inputdev = NULL, *outputdev = NULL, *errdev = NULL;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200754#ifdef CONFIG_SYS_CONSOLE_ENV_OVERWRITE
wdenk6e592382004-04-18 17:39:38 +0000755 int i;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200756#endif /* CONFIG_SYS_CONSOLE_ENV_OVERWRITE */
Simon Glassb0265422017-01-16 07:03:26 -0700757#if CONFIG_IS_ENABLED(CONSOLE_MUX)
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100758 int iomux_err = 0;
759#endif
wdenk47d1a6e2002-11-03 00:01:44 +0000760
761 /* set default handlers at first */
Martin Dorwig49cad542015-01-26 15:22:54 -0700762 gd->jt->getc = serial_getc;
763 gd->jt->tstc = serial_tstc;
764 gd->jt->putc = serial_putc;
765 gd->jt->puts = serial_puts;
766 gd->jt->printf = serial_printf;
wdenk47d1a6e2002-11-03 00:01:44 +0000767
768 /* stdin stdout and stderr are in environment */
769 /* scan for it */
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100770 stdinname = getenv("stdin");
771 stdoutname = getenv("stdout");
772 stderrname = getenv("stderr");
wdenk47d1a6e2002-11-03 00:01:44 +0000773
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200774 if (OVERWRITE_CONSOLE == 0) { /* if not overwritten by config switch */
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100775 inputdev = search_device(DEV_FLAGS_INPUT, stdinname);
776 outputdev = search_device(DEV_FLAGS_OUTPUT, stdoutname);
777 errdev = search_device(DEV_FLAGS_OUTPUT, stderrname);
Simon Glassb0265422017-01-16 07:03:26 -0700778#if CONFIG_IS_ENABLED(CONSOLE_MUX)
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100779 iomux_err = iomux_doenv(stdin, stdinname);
780 iomux_err += iomux_doenv(stdout, stdoutname);
781 iomux_err += iomux_doenv(stderr, stderrname);
782 if (!iomux_err)
783 /* Successful, so skip all the code below. */
784 goto done;
785#endif
wdenk47d1a6e2002-11-03 00:01:44 +0000786 }
787 /* if the devices are overwritten or not found, use default device */
788 if (inputdev == NULL) {
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100789 inputdev = search_device(DEV_FLAGS_INPUT, "serial");
wdenk47d1a6e2002-11-03 00:01:44 +0000790 }
791 if (outputdev == NULL) {
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100792 outputdev = search_device(DEV_FLAGS_OUTPUT, "serial");
wdenk47d1a6e2002-11-03 00:01:44 +0000793 }
794 if (errdev == NULL) {
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100795 errdev = search_device(DEV_FLAGS_OUTPUT, "serial");
wdenk47d1a6e2002-11-03 00:01:44 +0000796 }
797 /* Initializes output console first */
798 if (outputdev != NULL) {
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100799 /* need to set a console if not done above. */
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100800 console_doenv(stdout, outputdev);
wdenk47d1a6e2002-11-03 00:01:44 +0000801 }
802 if (errdev != NULL) {
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100803 /* need to set a console if not done above. */
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100804 console_doenv(stderr, errdev);
wdenk47d1a6e2002-11-03 00:01:44 +0000805 }
806 if (inputdev != NULL) {
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100807 /* need to set a console if not done above. */
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100808 console_doenv(stdin, inputdev);
wdenk47d1a6e2002-11-03 00:01:44 +0000809 }
810
Simon Glassb0265422017-01-16 07:03:26 -0700811#if CONFIG_IS_ENABLED(CONSOLE_MUX)
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100812done:
813#endif
814
Simon Glass78c112c2012-12-05 14:46:43 +0000815#ifndef CONFIG_SYS_CONSOLE_INFO_QUIET
Jean-Christophe PLAGNIOL-VILLARD7e3be7c2009-05-16 12:14:55 +0200816 stdio_print_current_devices();
Simon Glass78c112c2012-12-05 14:46:43 +0000817#endif /* CONFIG_SYS_CONSOLE_INFO_QUIET */
Simon Glassa2931b32016-02-06 14:31:37 -0700818#ifdef CONFIG_VIDCONSOLE_AS_LCD
819 if (strstr(stdoutname, "lcd"))
820 printf("Warning: Please change 'lcd' to 'vidconsole' in stdout/stderr environment vars\n");
821#endif
wdenk47d1a6e2002-11-03 00:01:44 +0000822
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200823#ifdef CONFIG_SYS_CONSOLE_ENV_OVERWRITE
wdenk47d1a6e2002-11-03 00:01:44 +0000824 /* set the environment variables (will overwrite previous env settings) */
825 for (i = 0; i < 3; i++) {
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100826 setenv(stdio_names[i], stdio_devices[i]->name);
wdenk47d1a6e2002-11-03 00:01:44 +0000827 }
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200828#endif /* CONFIG_SYS_CONSOLE_ENV_OVERWRITE */
wdenk47d1a6e2002-11-03 00:01:44 +0000829
Joe Hershbergerc4e00572012-12-11 22:16:19 -0600830 gd->flags |= GD_FLG_DEVINIT; /* device initialization completed */
831
wdenk47d1a6e2002-11-03 00:01:44 +0000832#if 0
833 /* If nothing usable installed, use only the initial console */
834 if ((stdio_devices[stdin] == NULL) && (stdio_devices[stdout] == NULL))
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100835 return 0;
wdenk47d1a6e2002-11-03 00:01:44 +0000836#endif
Siarhei Siamashka27669662015-01-08 09:02:31 +0200837 print_pre_console_buffer(PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL);
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100838 return 0;
wdenk47d1a6e2002-11-03 00:01:44 +0000839}
840
Simon Glassb0265422017-01-16 07:03:26 -0700841#else /* !CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV) */
wdenk47d1a6e2002-11-03 00:01:44 +0000842
843/* Called after the relocation - use desired console functions */
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100844int console_init_r(void)
wdenk47d1a6e2002-11-03 00:01:44 +0000845{
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200846 struct stdio_dev *inputdev = NULL, *outputdev = NULL;
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200847 int i;
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200848 struct list_head *list = stdio_get_list();
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200849 struct list_head *pos;
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200850 struct stdio_dev *dev;
wdenk47d1a6e2002-11-03 00:01:44 +0000851
Chris Packham43e0a3d2016-09-23 15:59:43 +1200852 console_update_silent();
853
wdenkd791b1d2003-04-20 14:04:18 +0000854#ifdef CONFIG_SPLASH_SCREEN
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100855 /*
856 * suppress all output if splash screen is enabled and we have
Anatolij Gustschina7490812010-03-16 15:29:33 +0100857 * a bmp to display. We redirect the output from frame buffer
858 * console to serial console in this case or suppress it if
859 * "silent" mode was requested.
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100860 */
Anatolij Gustschina7490812010-03-16 15:29:33 +0100861 if (getenv("splashimage") != NULL) {
862 if (!(gd->flags & GD_FLG_SILENT))
863 outputdev = search_device (DEV_FLAGS_OUTPUT, "serial");
864 }
wdenkf72da342003-10-10 10:05:42 +0000865#endif
866
wdenk47d1a6e2002-11-03 00:01:44 +0000867 /* Scan devices looking for input and output devices */
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200868 list_for_each(pos, list) {
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200869 dev = list_entry(pos, struct stdio_dev, list);
wdenk47d1a6e2002-11-03 00:01:44 +0000870
871 if ((dev->flags & DEV_FLAGS_INPUT) && (inputdev == NULL)) {
872 inputdev = dev;
873 }
874 if ((dev->flags & DEV_FLAGS_OUTPUT) && (outputdev == NULL)) {
875 outputdev = dev;
876 }
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200877 if(inputdev && outputdev)
878 break;
wdenk47d1a6e2002-11-03 00:01:44 +0000879 }
880
881 /* Initializes output console first */
882 if (outputdev != NULL) {
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100883 console_setfile(stdout, outputdev);
884 console_setfile(stderr, outputdev);
Simon Glassb0265422017-01-16 07:03:26 -0700885#if CONFIG_IS_ENABLED(CONSOLE_MUX)
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100886 console_devices[stdout][0] = outputdev;
887 console_devices[stderr][0] = outputdev;
888#endif
wdenk47d1a6e2002-11-03 00:01:44 +0000889 }
890
891 /* Initializes input console */
892 if (inputdev != NULL) {
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100893 console_setfile(stdin, inputdev);
Simon Glassb0265422017-01-16 07:03:26 -0700894#if CONFIG_IS_ENABLED(CONSOLE_MUX)
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100895 console_devices[stdin][0] = inputdev;
896#endif
wdenk47d1a6e2002-11-03 00:01:44 +0000897 }
898
Simon Glass78c112c2012-12-05 14:46:43 +0000899#ifndef CONFIG_SYS_CONSOLE_INFO_QUIET
Jean-Christophe PLAGNIOL-VILLARD7e3be7c2009-05-16 12:14:55 +0200900 stdio_print_current_devices();
Simon Glass78c112c2012-12-05 14:46:43 +0000901#endif /* CONFIG_SYS_CONSOLE_INFO_QUIET */
wdenk47d1a6e2002-11-03 00:01:44 +0000902
903 /* Setting environment variables */
904 for (i = 0; i < 3; i++) {
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100905 setenv(stdio_names[i], stdio_devices[i]->name);
wdenk47d1a6e2002-11-03 00:01:44 +0000906 }
907
Joe Hershbergerc4e00572012-12-11 22:16:19 -0600908 gd->flags |= GD_FLG_DEVINIT; /* device initialization completed */
909
wdenk47d1a6e2002-11-03 00:01:44 +0000910#if 0
911 /* If nothing usable installed, use only the initial console */
912 if ((stdio_devices[stdin] == NULL) && (stdio_devices[stdout] == NULL))
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100913 return 0;
wdenk47d1a6e2002-11-03 00:01:44 +0000914#endif
Siarhei Siamashka27669662015-01-08 09:02:31 +0200915 print_pre_console_buffer(PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL);
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100916 return 0;
wdenk47d1a6e2002-11-03 00:01:44 +0000917}
918
Simon Glassb0265422017-01-16 07:03:26 -0700919#endif /* CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV) */