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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>
Simon Glass7b3c4c32017-07-27 09:31:04 -060011#include <dm.h>
wdenk47d1a6e2002-11-03 00:01:44 +000012#include <stdarg.h>
Jeroen Hofstee482f4692014-10-08 22:57:48 +020013#include <iomux.h>
wdenk47d1a6e2002-11-03 00:01:44 +000014#include <malloc.h>
Simon Glass4e6bafa2017-06-15 21:37:52 -060015#include <mapmem.h>
Simon Glass91b136c2013-11-10 10:27:01 -070016#include <os.h>
Joe Hershberger849d5d92012-12-11 22:16:29 -060017#include <serial.h>
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +020018#include <stdio_dev.h>
wdenk27b207f2003-07-24 23:38:38 +000019#include <exports.h>
Joe Hershberger849d5d92012-12-11 22:16:29 -060020#include <environment.h>
Andreas J. Reichel64407462016-07-13 12:56:51 +020021#include <watchdog.h>
wdenk47d1a6e2002-11-03 00:01:44 +000022
Wolfgang Denkd87080b2006-03-31 18:32:53 +020023DECLARE_GLOBAL_DATA_PTR;
24
Joe Hershberger849d5d92012-12-11 22:16:29 -060025static int on_console(const char *name, const char *value, enum env_op op,
26 int flags)
27{
28 int console = -1;
29
30 /* Check for console redirection */
31 if (strcmp(name, "stdin") == 0)
32 console = stdin;
33 else if (strcmp(name, "stdout") == 0)
34 console = stdout;
35 else if (strcmp(name, "stderr") == 0)
36 console = stderr;
37
38 /* if not actually setting a console variable, we don't care */
39 if (console == -1 || (gd->flags & GD_FLG_DEVINIT) == 0)
40 return 0;
41
42 switch (op) {
43 case env_op_create:
44 case env_op_overwrite:
45
Simon Glassb0265422017-01-16 07:03:26 -070046#if CONFIG_IS_ENABLED(CONSOLE_MUX)
Joe Hershberger849d5d92012-12-11 22:16:29 -060047 if (iomux_doenv(console, value))
48 return 1;
49#else
50 /* Try assigning specified device */
51 if (console_assign(console, value) < 0)
52 return 1;
Simon Glassb0265422017-01-16 07:03:26 -070053#endif
Joe Hershberger849d5d92012-12-11 22:16:29 -060054 return 0;
55
56 case env_op_delete:
57 if ((flags & H_FORCE) == 0)
58 printf("Can't delete \"%s\"\n", name);
59 return 1;
60
61 default:
62 return 0;
63 }
64}
65U_BOOT_ENV_CALLBACK(console, on_console);
66
Joe Hershbergere080d542012-12-11 22:16:30 -060067#ifdef CONFIG_SILENT_CONSOLE
68static int on_silent(const char *name, const char *value, enum env_op op,
69 int flags)
70{
Wilson Lee5daf6e52017-08-25 00:06:29 -070071#if !CONFIG_IS_ENABLED(SILENT_CONSOLE_UPDATE_ON_SET)
Joe Hershbergere080d542012-12-11 22:16:30 -060072 if (flags & H_INTERACTIVE)
73 return 0;
74#endif
Wilson Lee5daf6e52017-08-25 00:06:29 -070075#if !CONFIG_IS_ENABLED(SILENT_CONSOLE_UPDATE_ON_RELOC)
Joe Hershbergere080d542012-12-11 22:16:30 -060076 if ((flags & H_INTERACTIVE) == 0)
77 return 0;
78#endif
79
80 if (value != NULL)
81 gd->flags |= GD_FLG_SILENT;
82 else
83 gd->flags &= ~GD_FLG_SILENT;
84
85 return 0;
86}
87U_BOOT_ENV_CALLBACK(silent, on_silent);
88#endif
89
Simon Glassb0265422017-01-16 07:03:26 -070090#if CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV)
wdenk47d1a6e2002-11-03 00:01:44 +000091/*
92 * if overwrite_console returns 1, the stdin, stderr and stdout
93 * are switched to the serial port, else the settings in the
94 * environment are used
95 */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020096#ifdef CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +010097extern int overwrite_console(void);
98#define OVERWRITE_CONSOLE overwrite_console()
wdenk47d1a6e2002-11-03 00:01:44 +000099#else
wdenk83e40ba2005-03-31 18:42:15 +0000100#define OVERWRITE_CONSOLE 0
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200101#endif /* CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE */
wdenk47d1a6e2002-11-03 00:01:44 +0000102
Simon Glassb0265422017-01-16 07:03:26 -0700103#endif /* CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV) */
wdenk47d1a6e2002-11-03 00:01:44 +0000104
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200105static int console_setfile(int file, struct stdio_dev * dev)
wdenk47d1a6e2002-11-03 00:01:44 +0000106{
107 int error = 0;
108
109 if (dev == NULL)
110 return -1;
111
112 switch (file) {
113 case stdin:
114 case stdout:
115 case stderr:
116 /* Start new device */
117 if (dev->start) {
Simon Glass709ea542014-07-23 06:54:59 -0600118 error = dev->start(dev);
wdenk47d1a6e2002-11-03 00:01:44 +0000119 /* If it's not started dont use it */
120 if (error < 0)
121 break;
122 }
123
124 /* Assign the new device (leaving the existing one started) */
125 stdio_devices[file] = dev;
126
127 /*
128 * Update monitor functions
129 * (to use the console stuff by other applications)
130 */
131 switch (file) {
132 case stdin:
Martin Dorwig49cad542015-01-26 15:22:54 -0700133 gd->jt->getc = getc;
134 gd->jt->tstc = tstc;
wdenk47d1a6e2002-11-03 00:01:44 +0000135 break;
136 case stdout:
Martin Dorwig49cad542015-01-26 15:22:54 -0700137 gd->jt->putc = putc;
138 gd->jt->puts = puts;
139 gd->jt->printf = printf;
wdenk47d1a6e2002-11-03 00:01:44 +0000140 break;
141 }
142 break;
143
144 default: /* Invalid file ID */
145 error = -1;
146 }
147 return error;
148}
149
Simon Glass42f9f912017-07-27 09:31:03 -0600150/**
151 * console_dev_is_serial() - Check if a stdio device is a serial device
152 *
153 * @sdev: Device to check
Simon Glass7b3c4c32017-07-27 09:31:04 -0600154 * @return true if this device is in the serial uclass (or for pre-driver-model,
155 * whether it is called "serial".
Simon Glass42f9f912017-07-27 09:31:03 -0600156 */
157static bool console_dev_is_serial(struct stdio_dev *sdev)
158{
159 bool is_serial;
160
Simon Glass7b3c4c32017-07-27 09:31:04 -0600161#ifdef CONFIG_DM_SERIAL
162 if (sdev->flags & DEV_FLAGS_DM) {
163 struct udevice *dev = sdev->priv;
164
165 is_serial = device_get_uclass_id(dev) == UCLASS_SERIAL;
166 } else
167#endif
Simon Glass42f9f912017-07-27 09:31:03 -0600168 is_serial = !strcmp(sdev->name, "serial");
169
170 return is_serial;
171}
172
Simon Glassb0265422017-01-16 07:03:26 -0700173#if CONFIG_IS_ENABLED(CONSOLE_MUX)
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100174/** Console I/O multiplexing *******************************************/
175
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200176static struct stdio_dev *tstcdev;
177struct stdio_dev **console_devices[MAX_FILES];
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100178int cd_count[MAX_FILES];
179
180/*
181 * This depends on tstc() always being called before getc().
182 * This is guaranteed to be true because this routine is called
183 * only from fgetc() which assures it.
184 * No attempt is made to demultiplex multiple input sources.
185 */
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100186static int console_getc(int file)
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100187{
188 unsigned char ret;
189
190 /* This is never called with testcdev == NULL */
Simon Glass709ea542014-07-23 06:54:59 -0600191 ret = tstcdev->getc(tstcdev);
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100192 tstcdev = NULL;
193 return ret;
194}
195
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100196static int console_tstc(int file)
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100197{
198 int i, ret;
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200199 struct stdio_dev *dev;
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100200
201 disable_ctrlc(1);
202 for (i = 0; i < cd_count[file]; i++) {
203 dev = console_devices[file][i];
204 if (dev->tstc != NULL) {
Simon Glass709ea542014-07-23 06:54:59 -0600205 ret = dev->tstc(dev);
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100206 if (ret > 0) {
207 tstcdev = dev;
208 disable_ctrlc(0);
209 return ret;
210 }
211 }
212 }
213 disable_ctrlc(0);
214
215 return 0;
216}
217
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100218static void console_putc(int file, const char c)
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100219{
220 int i;
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200221 struct stdio_dev *dev;
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100222
223 for (i = 0; i < cd_count[file]; i++) {
224 dev = console_devices[file][i];
225 if (dev->putc != NULL)
Simon Glass709ea542014-07-23 06:54:59 -0600226 dev->putc(dev, c);
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100227 }
228}
229
Hans de Goedea8552c72015-05-05 13:13:36 +0200230static void console_puts_noserial(int file, const char *s)
Siarhei Siamashka27669662015-01-08 09:02:31 +0200231{
232 int i;
233 struct stdio_dev *dev;
234
235 for (i = 0; i < cd_count[file]; i++) {
236 dev = console_devices[file][i];
Simon Glass42f9f912017-07-27 09:31:03 -0600237 if (dev->puts != NULL && !console_dev_is_serial(dev))
Hans de Goedea8552c72015-05-05 13:13:36 +0200238 dev->puts(dev, s);
Siarhei Siamashka27669662015-01-08 09:02:31 +0200239 }
240}
Siarhei Siamashka27669662015-01-08 09:02:31 +0200241
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100242static void console_puts(int file, const char *s)
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100243{
244 int i;
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200245 struct stdio_dev *dev;
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100246
247 for (i = 0; i < cd_count[file]; i++) {
248 dev = console_devices[file][i];
249 if (dev->puts != NULL)
Simon Glass709ea542014-07-23 06:54:59 -0600250 dev->puts(dev, s);
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100251 }
252}
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100253
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200254static inline void console_doenv(int file, struct stdio_dev *dev)
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100255{
256 iomux_doenv(file, dev->name);
257}
258#else
259static inline int console_getc(int file)
260{
Simon Glass709ea542014-07-23 06:54:59 -0600261 return stdio_devices[file]->getc(stdio_devices[file]);
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100262}
263
264static inline int console_tstc(int file)
265{
Simon Glass709ea542014-07-23 06:54:59 -0600266 return stdio_devices[file]->tstc(stdio_devices[file]);
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100267}
268
269static inline void console_putc(int file, const char c)
270{
Simon Glass709ea542014-07-23 06:54:59 -0600271 stdio_devices[file]->putc(stdio_devices[file], c);
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100272}
273
Hans de Goedea8552c72015-05-05 13:13:36 +0200274static inline void console_puts_noserial(int file, const char *s)
Siarhei Siamashka27669662015-01-08 09:02:31 +0200275{
Simon Glass42f9f912017-07-27 09:31:03 -0600276 if (!console_dev_is_serial(stdio_devices[file]))
Hans de Goedea8552c72015-05-05 13:13:36 +0200277 stdio_devices[file]->puts(stdio_devices[file], s);
Siarhei Siamashka27669662015-01-08 09:02:31 +0200278}
Siarhei Siamashka27669662015-01-08 09:02:31 +0200279
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100280static inline void console_puts(int file, const char *s)
281{
Simon Glass709ea542014-07-23 06:54:59 -0600282 stdio_devices[file]->puts(stdio_devices[file], s);
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100283}
284
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200285static inline void console_doenv(int file, struct stdio_dev *dev)
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100286{
287 console_setfile(file, dev);
288}
Simon Glassb0265422017-01-16 07:03:26 -0700289#endif /* CONIFIG_IS_ENABLED(CONSOLE_MUX) */
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100290
wdenk47d1a6e2002-11-03 00:01:44 +0000291/** U-Boot INITIAL CONSOLE-NOT COMPATIBLE FUNCTIONS *************************/
292
Wolfgang Denkd9c27252010-06-20 17:14:14 +0200293int serial_printf(const char *fmt, ...)
wdenk47d1a6e2002-11-03 00:01:44 +0000294{
295 va_list args;
296 uint i;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200297 char printbuffer[CONFIG_SYS_PBSIZE];
wdenk47d1a6e2002-11-03 00:01:44 +0000298
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100299 va_start(args, fmt);
wdenk47d1a6e2002-11-03 00:01:44 +0000300
301 /* For this to work, printbuffer must be larger than
302 * anything we ever want to print.
303 */
Sonny Rao068af6f2011-10-10 09:22:31 +0000304 i = vscnprintf(printbuffer, sizeof(printbuffer), fmt, args);
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100305 va_end(args);
wdenk47d1a6e2002-11-03 00:01:44 +0000306
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100307 serial_puts(printbuffer);
Wolfgang Denkd9c27252010-06-20 17:14:14 +0200308 return i;
wdenk47d1a6e2002-11-03 00:01:44 +0000309}
310
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100311int fgetc(int file)
wdenk47d1a6e2002-11-03 00:01:44 +0000312{
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100313 if (file < MAX_FILES) {
Simon Glassb0265422017-01-16 07:03:26 -0700314#if CONFIG_IS_ENABLED(CONSOLE_MUX)
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100315 /*
316 * Effectively poll for input wherever it may be available.
317 */
318 for (;;) {
Andreas J. Reichel64407462016-07-13 12:56:51 +0200319 WATCHDOG_RESET();
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100320 /*
321 * Upper layer may have already called tstc() so
322 * check for that first.
323 */
324 if (tstcdev != NULL)
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100325 return console_getc(file);
326 console_tstc(file);
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100327#ifdef CONFIG_WATCHDOG
328 /*
329 * If the watchdog must be rate-limited then it should
330 * already be handled in board-specific code.
331 */
332 udelay(1);
333#endif
334 }
335#else
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100336 return console_getc(file);
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100337#endif
338 }
wdenk47d1a6e2002-11-03 00:01:44 +0000339
340 return -1;
341}
342
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100343int ftstc(int file)
wdenk47d1a6e2002-11-03 00:01:44 +0000344{
345 if (file < MAX_FILES)
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100346 return console_tstc(file);
wdenk47d1a6e2002-11-03 00:01:44 +0000347
348 return -1;
349}
350
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100351void fputc(int file, const char c)
wdenk47d1a6e2002-11-03 00:01:44 +0000352{
353 if (file < MAX_FILES)
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100354 console_putc(file, c);
wdenk47d1a6e2002-11-03 00:01:44 +0000355}
356
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100357void fputs(int file, const char *s)
wdenk47d1a6e2002-11-03 00:01:44 +0000358{
359 if (file < MAX_FILES)
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100360 console_puts(file, s);
wdenk47d1a6e2002-11-03 00:01:44 +0000361}
362
Wolfgang Denkd9c27252010-06-20 17:14:14 +0200363int fprintf(int file, const char *fmt, ...)
wdenk47d1a6e2002-11-03 00:01:44 +0000364{
365 va_list args;
366 uint i;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200367 char printbuffer[CONFIG_SYS_PBSIZE];
wdenk47d1a6e2002-11-03 00:01:44 +0000368
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100369 va_start(args, fmt);
wdenk47d1a6e2002-11-03 00:01:44 +0000370
371 /* For this to work, printbuffer must be larger than
372 * anything we ever want to print.
373 */
Sonny Rao068af6f2011-10-10 09:22:31 +0000374 i = vscnprintf(printbuffer, sizeof(printbuffer), fmt, args);
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100375 va_end(args);
wdenk47d1a6e2002-11-03 00:01:44 +0000376
377 /* Send to desired file */
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100378 fputs(file, printbuffer);
Wolfgang Denkd9c27252010-06-20 17:14:14 +0200379 return i;
wdenk47d1a6e2002-11-03 00:01:44 +0000380}
381
382/** U-Boot INITIAL CONSOLE-COMPATIBLE FUNCTION *****************************/
383
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100384int getc(void)
wdenk47d1a6e2002-11-03 00:01:44 +0000385{
Mark Jacksonf5c3ba72008-08-25 19:21:30 +0100386#ifdef CONFIG_DISABLE_CONSOLE
387 if (gd->flags & GD_FLG_DISABLE_CONSOLE)
388 return 0;
389#endif
390
Graeme Russe3e454c2011-08-29 02:14:05 +0000391 if (!gd->have_console)
392 return 0;
393
Simon Glass9854a872015-11-08 23:47:48 -0700394#ifdef CONFIG_CONSOLE_RECORD
395 if (gd->console_in.start) {
396 int ch;
397
398 ch = membuff_getbyte(&gd->console_in);
399 if (ch != -1)
400 return 1;
401 }
402#endif
wdenk47d1a6e2002-11-03 00:01:44 +0000403 if (gd->flags & GD_FLG_DEVINIT) {
404 /* Get from the standard input */
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100405 return fgetc(stdin);
wdenk47d1a6e2002-11-03 00:01:44 +0000406 }
407
408 /* Send directly to the handler */
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100409 return serial_getc();
wdenk47d1a6e2002-11-03 00:01:44 +0000410}
411
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100412int tstc(void)
wdenk47d1a6e2002-11-03 00:01:44 +0000413{
Mark Jacksonf5c3ba72008-08-25 19:21:30 +0100414#ifdef CONFIG_DISABLE_CONSOLE
415 if (gd->flags & GD_FLG_DISABLE_CONSOLE)
416 return 0;
417#endif
418
Graeme Russe3e454c2011-08-29 02:14:05 +0000419 if (!gd->have_console)
420 return 0;
Simon Glass9854a872015-11-08 23:47:48 -0700421#ifdef CONFIG_CONSOLE_RECORD
422 if (gd->console_in.start) {
423 if (membuff_peekbyte(&gd->console_in) != -1)
424 return 1;
425 }
426#endif
wdenk47d1a6e2002-11-03 00:01:44 +0000427 if (gd->flags & GD_FLG_DEVINIT) {
428 /* Test the standard input */
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100429 return ftstc(stdin);
wdenk47d1a6e2002-11-03 00:01:44 +0000430 }
431
432 /* Send directly to the handler */
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100433 return serial_tstc();
wdenk47d1a6e2002-11-03 00:01:44 +0000434}
435
Siarhei Siamashka27669662015-01-08 09:02:31 +0200436#define PRE_CONSOLE_FLUSHPOINT1_SERIAL 0
437#define PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL 1
438
Simon Glass8f925582016-10-17 20:12:36 -0600439#if CONFIG_IS_ENABLED(PRE_CONSOLE_BUFFER)
Graeme Russ9558b482011-09-01 00:48:27 +0000440#define CIRC_BUF_IDX(idx) ((idx) % (unsigned long)CONFIG_PRE_CON_BUF_SZ)
441
442static void pre_console_putc(const char c)
443{
Simon Glass4e6bafa2017-06-15 21:37:52 -0600444 char *buffer;
445
446 buffer = map_sysmem(CONFIG_PRE_CON_BUF_ADDR, CONFIG_PRE_CON_BUF_SZ);
Graeme Russ9558b482011-09-01 00:48:27 +0000447
448 buffer[CIRC_BUF_IDX(gd->precon_buf_idx++)] = c;
Simon Glass4e6bafa2017-06-15 21:37:52 -0600449
450 unmap_sysmem(buffer);
Graeme Russ9558b482011-09-01 00:48:27 +0000451}
452
Siarhei Siamashka27669662015-01-08 09:02:31 +0200453static void print_pre_console_buffer(int flushpoint)
Graeme Russ9558b482011-09-01 00:48:27 +0000454{
Hans de Goedea8552c72015-05-05 13:13:36 +0200455 unsigned long in = 0, out = 0;
Hans de Goedea8552c72015-05-05 13:13:36 +0200456 char buf_out[CONFIG_PRE_CON_BUF_SZ + 1];
Simon Glass4e6bafa2017-06-15 21:37:52 -0600457 char *buf_in;
Graeme Russ9558b482011-09-01 00:48:27 +0000458
Simon Glass4e6bafa2017-06-15 21:37:52 -0600459 buf_in = map_sysmem(CONFIG_PRE_CON_BUF_ADDR, CONFIG_PRE_CON_BUF_SZ);
Graeme Russ9558b482011-09-01 00:48:27 +0000460 if (gd->precon_buf_idx > CONFIG_PRE_CON_BUF_SZ)
Hans de Goedea8552c72015-05-05 13:13:36 +0200461 in = gd->precon_buf_idx - CONFIG_PRE_CON_BUF_SZ;
Graeme Russ9558b482011-09-01 00:48:27 +0000462
Hans de Goedea8552c72015-05-05 13:13:36 +0200463 while (in < gd->precon_buf_idx)
464 buf_out[out++] = buf_in[CIRC_BUF_IDX(in++)];
Simon Glass4e6bafa2017-06-15 21:37:52 -0600465 unmap_sysmem(buf_in);
Hans de Goedea8552c72015-05-05 13:13:36 +0200466
467 buf_out[out] = 0;
468
469 switch (flushpoint) {
470 case PRE_CONSOLE_FLUSHPOINT1_SERIAL:
471 puts(buf_out);
472 break;
473 case PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL:
474 console_puts_noserial(stdout, buf_out);
475 break;
476 }
Graeme Russ9558b482011-09-01 00:48:27 +0000477}
478#else
479static inline void pre_console_putc(const char c) {}
Siarhei Siamashka27669662015-01-08 09:02:31 +0200480static inline void print_pre_console_buffer(int flushpoint) {}
Graeme Russ9558b482011-09-01 00:48:27 +0000481#endif
482
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100483void putc(const char c)
wdenk47d1a6e2002-11-03 00:01:44 +0000484{
Simon Glassd6ea5302015-06-23 15:38:33 -0600485#ifdef CONFIG_DEBUG_UART
486 /* if we don't have a console yet, use the debug UART */
487 if (!gd || !(gd->flags & GD_FLG_SERIAL_READY)) {
488 printch(c);
489 return;
490 }
491#endif
Simon Glass9854a872015-11-08 23:47:48 -0700492#ifdef CONFIG_CONSOLE_RECORD
493 if (gd && (gd->flags & GD_FLG_RECORD) && gd->console_out.start)
494 membuff_putbyte(&gd->console_out, c);
495#endif
wdenka6cccae2004-02-06 21:48:22 +0000496#ifdef CONFIG_SILENT_CONSOLE
497 if (gd->flags & GD_FLG_SILENT)
wdenkf6e20fc2004-02-08 19:38:38 +0000498 return;
wdenka6cccae2004-02-06 21:48:22 +0000499#endif
500
Mark Jacksonf5c3ba72008-08-25 19:21:30 +0100501#ifdef CONFIG_DISABLE_CONSOLE
502 if (gd->flags & GD_FLG_DISABLE_CONSOLE)
503 return;
504#endif
505
Graeme Russe3e454c2011-08-29 02:14:05 +0000506 if (!gd->have_console)
Graeme Russ9558b482011-09-01 00:48:27 +0000507 return pre_console_putc(c);
Graeme Russe3e454c2011-08-29 02:14:05 +0000508
wdenk47d1a6e2002-11-03 00:01:44 +0000509 if (gd->flags & GD_FLG_DEVINIT) {
510 /* Send to the standard output */
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100511 fputc(stdout, c);
wdenk47d1a6e2002-11-03 00:01:44 +0000512 } else {
513 /* Send directly to the handler */
Siarhei Siamashka27669662015-01-08 09:02:31 +0200514 pre_console_putc(c);
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100515 serial_putc(c);
wdenk47d1a6e2002-11-03 00:01:44 +0000516 }
517}
518
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100519void puts(const char *s)
wdenk47d1a6e2002-11-03 00:01:44 +0000520{
Masahiro Yamadac61d0002017-07-17 13:08:32 +0900521 while (*s)
522 putc(*s++);
wdenk47d1a6e2002-11-03 00:01:44 +0000523}
524
Simon Glass9854a872015-11-08 23:47:48 -0700525#ifdef CONFIG_CONSOLE_RECORD
526int console_record_init(void)
527{
528 int ret;
529
530 ret = membuff_new(&gd->console_out, CONFIG_CONSOLE_RECORD_OUT_SIZE);
531 if (ret)
532 return ret;
533 ret = membuff_new(&gd->console_in, CONFIG_CONSOLE_RECORD_IN_SIZE);
534
535 return ret;
536}
537
538void console_record_reset(void)
539{
540 membuff_purge(&gd->console_out);
541 membuff_purge(&gd->console_in);
542}
543
544void console_record_reset_enable(void)
545{
546 console_record_reset();
547 gd->flags |= GD_FLG_RECORD;
548}
549#endif
550
wdenk47d1a6e2002-11-03 00:01:44 +0000551/* test if ctrl-c was pressed */
552static int ctrlc_disabled = 0; /* see disable_ctrl() */
553static int ctrlc_was_pressed = 0;
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100554int ctrlc(void)
wdenk47d1a6e2002-11-03 00:01:44 +0000555{
Simon Glass8969ea32014-09-14 12:40:15 -0600556#ifndef CONFIG_SANDBOX
wdenk47d1a6e2002-11-03 00:01:44 +0000557 if (!ctrlc_disabled && gd->have_console) {
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100558 if (tstc()) {
559 switch (getc()) {
wdenk47d1a6e2002-11-03 00:01:44 +0000560 case 0x03: /* ^C - Control C */
561 ctrlc_was_pressed = 1;
562 return 1;
563 default:
564 break;
565 }
566 }
567 }
Simon Glass8969ea32014-09-14 12:40:15 -0600568#endif
569
wdenk47d1a6e2002-11-03 00:01:44 +0000570 return 0;
571}
Pierre Auberta5dffa42014-04-24 10:30:07 +0200572/* Reads user's confirmation.
573 Returns 1 if user's input is "y", "Y", "yes" or "YES"
574*/
575int confirm_yesno(void)
576{
577 int i;
578 char str_input[5];
wdenk47d1a6e2002-11-03 00:01:44 +0000579
Pierre Auberta5dffa42014-04-24 10:30:07 +0200580 /* Flush input */
581 while (tstc())
582 getc();
583 i = 0;
584 while (i < sizeof(str_input)) {
585 str_input[i] = getc();
586 putc(str_input[i]);
587 if (str_input[i] == '\r')
588 break;
589 i++;
590 }
591 putc('\n');
592 if (strncmp(str_input, "y\r", 2) == 0 ||
593 strncmp(str_input, "Y\r", 2) == 0 ||
594 strncmp(str_input, "yes\r", 4) == 0 ||
595 strncmp(str_input, "YES\r", 4) == 0)
596 return 1;
597 return 0;
598}
wdenk47d1a6e2002-11-03 00:01:44 +0000599/* pass 1 to disable ctrlc() checking, 0 to enable.
600 * returns previous state
601 */
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100602int disable_ctrlc(int disable)
wdenk47d1a6e2002-11-03 00:01:44 +0000603{
604 int prev = ctrlc_disabled; /* save previous state */
605
606 ctrlc_disabled = disable;
607 return prev;
608}
609
610int had_ctrlc (void)
611{
612 return ctrlc_was_pressed;
613}
614
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100615void clear_ctrlc(void)
wdenk47d1a6e2002-11-03 00:01:44 +0000616{
617 ctrlc_was_pressed = 0;
618}
619
wdenk47d1a6e2002-11-03 00:01:44 +0000620/** U-Boot INIT FUNCTIONS *************************************************/
621
Mike Frysingerd7be3052010-10-20 07:18:03 -0400622struct stdio_dev *search_device(int flags, const char *name)
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200623{
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200624 struct stdio_dev *dev;
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200625
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200626 dev = stdio_get_by_name(name);
Simon Glassa2931b32016-02-06 14:31:37 -0700627#ifdef CONFIG_VIDCONSOLE_AS_LCD
628 if (!dev && !strcmp(name, "lcd"))
629 dev = stdio_get_by_name("vidconsole");
630#endif
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200631
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100632 if (dev && (dev->flags & flags))
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200633 return dev;
634
635 return NULL;
636}
637
Mike Frysingerd7be3052010-10-20 07:18:03 -0400638int console_assign(int file, const char *devname)
wdenk47d1a6e2002-11-03 00:01:44 +0000639{
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200640 int flag;
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200641 struct stdio_dev *dev;
wdenk47d1a6e2002-11-03 00:01:44 +0000642
643 /* Check for valid file */
644 switch (file) {
645 case stdin:
646 flag = DEV_FLAGS_INPUT;
647 break;
648 case stdout:
649 case stderr:
650 flag = DEV_FLAGS_OUTPUT;
651 break;
652 default:
653 return -1;
654 }
655
656 /* Check for valid device name */
657
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200658 dev = search_device(flag, devname);
wdenk47d1a6e2002-11-03 00:01:44 +0000659
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100660 if (dev)
661 return console_setfile(file, dev);
wdenk47d1a6e2002-11-03 00:01:44 +0000662
663 return -1;
664}
665
Chris Packham43e0a3d2016-09-23 15:59:43 +1200666static void console_update_silent(void)
667{
668#ifdef CONFIG_SILENT_CONSOLE
Simon Glass00caae62017-08-03 12:22:12 -0600669 if (env_get("silent") != NULL)
Chris Packham43e0a3d2016-09-23 15:59:43 +1200670 gd->flags |= GD_FLG_SILENT;
671 else
672 gd->flags &= ~GD_FLG_SILENT;
673#endif
674}
675
Simon Glassb0895382017-06-15 21:37:50 -0600676int console_announce_r(void)
677{
678#if !CONFIG_IS_ENABLED(PRE_CONSOLE_BUFFER)
679 char buf[DISPLAY_OPTIONS_BANNER_LENGTH];
680
681 display_options_get_banner(false, buf, sizeof(buf));
682
683 console_puts_noserial(stdout, buf);
684#endif
685
686 return 0;
687}
688
wdenk47d1a6e2002-11-03 00:01:44 +0000689/* Called before relocation - use serial functions */
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100690int console_init_f(void)
wdenk47d1a6e2002-11-03 00:01:44 +0000691{
wdenk47d1a6e2002-11-03 00:01:44 +0000692 gd->have_console = 1;
wdenkf72da342003-10-10 10:05:42 +0000693
Chris Packham43e0a3d2016-09-23 15:59:43 +1200694 console_update_silent();
wdenkf72da342003-10-10 10:05:42 +0000695
Siarhei Siamashka27669662015-01-08 09:02:31 +0200696 print_pre_console_buffer(PRE_CONSOLE_FLUSHPOINT1_SERIAL);
Graeme Russ9558b482011-09-01 00:48:27 +0000697
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100698 return 0;
wdenk47d1a6e2002-11-03 00:01:44 +0000699}
700
Jean-Christophe PLAGNIOL-VILLARD7e3be7c2009-05-16 12:14:55 +0200701void stdio_print_current_devices(void)
702{
Jean-Christophe PLAGNIOL-VILLARD7e3be7c2009-05-16 12:14:55 +0200703 /* Print information */
704 puts("In: ");
705 if (stdio_devices[stdin] == NULL) {
706 puts("No input devices available!\n");
707 } else {
708 printf ("%s\n", stdio_devices[stdin]->name);
709 }
710
711 puts("Out: ");
712 if (stdio_devices[stdout] == NULL) {
713 puts("No output devices available!\n");
714 } else {
715 printf ("%s\n", stdio_devices[stdout]->name);
716 }
717
718 puts("Err: ");
719 if (stdio_devices[stderr] == NULL) {
720 puts("No error devices available!\n");
721 } else {
722 printf ("%s\n", stdio_devices[stderr]->name);
723 }
Jean-Christophe PLAGNIOL-VILLARD7e3be7c2009-05-16 12:14:55 +0200724}
725
Simon Glassb0265422017-01-16 07:03:26 -0700726#if CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV)
wdenk47d1a6e2002-11-03 00:01:44 +0000727/* Called after the relocation - use desired console functions */
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100728int console_init_r(void)
wdenk47d1a6e2002-11-03 00:01:44 +0000729{
730 char *stdinname, *stdoutname, *stderrname;
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200731 struct stdio_dev *inputdev = NULL, *outputdev = NULL, *errdev = NULL;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200732#ifdef CONFIG_SYS_CONSOLE_ENV_OVERWRITE
wdenk6e592382004-04-18 17:39:38 +0000733 int i;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200734#endif /* CONFIG_SYS_CONSOLE_ENV_OVERWRITE */
Simon Glassb0265422017-01-16 07:03:26 -0700735#if CONFIG_IS_ENABLED(CONSOLE_MUX)
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100736 int iomux_err = 0;
737#endif
wdenk47d1a6e2002-11-03 00:01:44 +0000738
739 /* set default handlers at first */
Martin Dorwig49cad542015-01-26 15:22:54 -0700740 gd->jt->getc = serial_getc;
741 gd->jt->tstc = serial_tstc;
742 gd->jt->putc = serial_putc;
743 gd->jt->puts = serial_puts;
744 gd->jt->printf = serial_printf;
wdenk47d1a6e2002-11-03 00:01:44 +0000745
746 /* stdin stdout and stderr are in environment */
747 /* scan for it */
Simon Glass00caae62017-08-03 12:22:12 -0600748 stdinname = env_get("stdin");
749 stdoutname = env_get("stdout");
750 stderrname = env_get("stderr");
wdenk47d1a6e2002-11-03 00:01:44 +0000751
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200752 if (OVERWRITE_CONSOLE == 0) { /* if not overwritten by config switch */
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100753 inputdev = search_device(DEV_FLAGS_INPUT, stdinname);
754 outputdev = search_device(DEV_FLAGS_OUTPUT, stdoutname);
755 errdev = search_device(DEV_FLAGS_OUTPUT, stderrname);
Simon Glassb0265422017-01-16 07:03:26 -0700756#if CONFIG_IS_ENABLED(CONSOLE_MUX)
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100757 iomux_err = iomux_doenv(stdin, stdinname);
758 iomux_err += iomux_doenv(stdout, stdoutname);
759 iomux_err += iomux_doenv(stderr, stderrname);
760 if (!iomux_err)
761 /* Successful, so skip all the code below. */
762 goto done;
763#endif
wdenk47d1a6e2002-11-03 00:01:44 +0000764 }
765 /* if the devices are overwritten or not found, use default device */
766 if (inputdev == NULL) {
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100767 inputdev = search_device(DEV_FLAGS_INPUT, "serial");
wdenk47d1a6e2002-11-03 00:01:44 +0000768 }
769 if (outputdev == NULL) {
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100770 outputdev = search_device(DEV_FLAGS_OUTPUT, "serial");
wdenk47d1a6e2002-11-03 00:01:44 +0000771 }
772 if (errdev == NULL) {
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100773 errdev = search_device(DEV_FLAGS_OUTPUT, "serial");
wdenk47d1a6e2002-11-03 00:01:44 +0000774 }
775 /* Initializes output console first */
776 if (outputdev != NULL) {
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100777 /* need to set a console if not done above. */
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100778 console_doenv(stdout, outputdev);
wdenk47d1a6e2002-11-03 00:01:44 +0000779 }
780 if (errdev != NULL) {
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100781 /* need to set a console if not done above. */
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100782 console_doenv(stderr, errdev);
wdenk47d1a6e2002-11-03 00:01:44 +0000783 }
784 if (inputdev != NULL) {
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100785 /* need to set a console if not done above. */
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100786 console_doenv(stdin, inputdev);
wdenk47d1a6e2002-11-03 00:01:44 +0000787 }
788
Simon Glassb0265422017-01-16 07:03:26 -0700789#if CONFIG_IS_ENABLED(CONSOLE_MUX)
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100790done:
791#endif
792
Simon Glass78c112c2012-12-05 14:46:43 +0000793#ifndef CONFIG_SYS_CONSOLE_INFO_QUIET
Jean-Christophe PLAGNIOL-VILLARD7e3be7c2009-05-16 12:14:55 +0200794 stdio_print_current_devices();
Simon Glass78c112c2012-12-05 14:46:43 +0000795#endif /* CONFIG_SYS_CONSOLE_INFO_QUIET */
Simon Glassa2931b32016-02-06 14:31:37 -0700796#ifdef CONFIG_VIDCONSOLE_AS_LCD
797 if (strstr(stdoutname, "lcd"))
798 printf("Warning: Please change 'lcd' to 'vidconsole' in stdout/stderr environment vars\n");
799#endif
wdenk47d1a6e2002-11-03 00:01:44 +0000800
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200801#ifdef CONFIG_SYS_CONSOLE_ENV_OVERWRITE
wdenk47d1a6e2002-11-03 00:01:44 +0000802 /* set the environment variables (will overwrite previous env settings) */
803 for (i = 0; i < 3; i++) {
Simon Glass382bee52017-08-03 12:22:09 -0600804 env_set(stdio_names[i], stdio_devices[i]->name);
wdenk47d1a6e2002-11-03 00:01:44 +0000805 }
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200806#endif /* CONFIG_SYS_CONSOLE_ENV_OVERWRITE */
wdenk47d1a6e2002-11-03 00:01:44 +0000807
Joe Hershbergerc4e00572012-12-11 22:16:19 -0600808 gd->flags |= GD_FLG_DEVINIT; /* device initialization completed */
809
wdenk47d1a6e2002-11-03 00:01:44 +0000810#if 0
811 /* If nothing usable installed, use only the initial console */
812 if ((stdio_devices[stdin] == NULL) && (stdio_devices[stdout] == NULL))
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100813 return 0;
wdenk47d1a6e2002-11-03 00:01:44 +0000814#endif
Siarhei Siamashka27669662015-01-08 09:02:31 +0200815 print_pre_console_buffer(PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL);
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100816 return 0;
wdenk47d1a6e2002-11-03 00:01:44 +0000817}
818
Simon Glassb0265422017-01-16 07:03:26 -0700819#else /* !CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV) */
wdenk47d1a6e2002-11-03 00:01:44 +0000820
821/* Called after the relocation - use desired console functions */
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100822int console_init_r(void)
wdenk47d1a6e2002-11-03 00:01:44 +0000823{
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200824 struct stdio_dev *inputdev = NULL, *outputdev = NULL;
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200825 int i;
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200826 struct list_head *list = stdio_get_list();
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200827 struct list_head *pos;
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200828 struct stdio_dev *dev;
wdenk47d1a6e2002-11-03 00:01:44 +0000829
Chris Packham43e0a3d2016-09-23 15:59:43 +1200830 console_update_silent();
831
wdenkd791b1d2003-04-20 14:04:18 +0000832#ifdef CONFIG_SPLASH_SCREEN
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100833 /*
834 * suppress all output if splash screen is enabled and we have
Anatolij Gustschina7490812010-03-16 15:29:33 +0100835 * a bmp to display. We redirect the output from frame buffer
836 * console to serial console in this case or suppress it if
837 * "silent" mode was requested.
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100838 */
Simon Glass00caae62017-08-03 12:22:12 -0600839 if (env_get("splashimage") != NULL) {
Anatolij Gustschina7490812010-03-16 15:29:33 +0100840 if (!(gd->flags & GD_FLG_SILENT))
841 outputdev = search_device (DEV_FLAGS_OUTPUT, "serial");
842 }
wdenkf72da342003-10-10 10:05:42 +0000843#endif
844
wdenk47d1a6e2002-11-03 00:01:44 +0000845 /* Scan devices looking for input and output devices */
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200846 list_for_each(pos, list) {
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200847 dev = list_entry(pos, struct stdio_dev, list);
wdenk47d1a6e2002-11-03 00:01:44 +0000848
849 if ((dev->flags & DEV_FLAGS_INPUT) && (inputdev == NULL)) {
850 inputdev = dev;
851 }
852 if ((dev->flags & DEV_FLAGS_OUTPUT) && (outputdev == NULL)) {
853 outputdev = dev;
854 }
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200855 if(inputdev && outputdev)
856 break;
wdenk47d1a6e2002-11-03 00:01:44 +0000857 }
858
859 /* Initializes output console first */
860 if (outputdev != NULL) {
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100861 console_setfile(stdout, outputdev);
862 console_setfile(stderr, outputdev);
Simon Glassb0265422017-01-16 07:03:26 -0700863#if CONFIG_IS_ENABLED(CONSOLE_MUX)
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100864 console_devices[stdout][0] = outputdev;
865 console_devices[stderr][0] = outputdev;
866#endif
wdenk47d1a6e2002-11-03 00:01:44 +0000867 }
868
869 /* Initializes input console */
870 if (inputdev != NULL) {
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100871 console_setfile(stdin, inputdev);
Simon Glassb0265422017-01-16 07:03:26 -0700872#if CONFIG_IS_ENABLED(CONSOLE_MUX)
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100873 console_devices[stdin][0] = inputdev;
874#endif
wdenk47d1a6e2002-11-03 00:01:44 +0000875 }
876
Simon Glass78c112c2012-12-05 14:46:43 +0000877#ifndef CONFIG_SYS_CONSOLE_INFO_QUIET
Jean-Christophe PLAGNIOL-VILLARD7e3be7c2009-05-16 12:14:55 +0200878 stdio_print_current_devices();
Simon Glass78c112c2012-12-05 14:46:43 +0000879#endif /* CONFIG_SYS_CONSOLE_INFO_QUIET */
wdenk47d1a6e2002-11-03 00:01:44 +0000880
881 /* Setting environment variables */
882 for (i = 0; i < 3; i++) {
Simon Glass382bee52017-08-03 12:22:09 -0600883 env_set(stdio_names[i], stdio_devices[i]->name);
wdenk47d1a6e2002-11-03 00:01:44 +0000884 }
885
Joe Hershbergerc4e00572012-12-11 22:16:19 -0600886 gd->flags |= GD_FLG_DEVINIT; /* device initialization completed */
887
wdenk47d1a6e2002-11-03 00:01:44 +0000888#if 0
889 /* If nothing usable installed, use only the initial console */
890 if ((stdio_devices[stdin] == NULL) && (stdio_devices[stdout] == NULL))
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100891 return 0;
wdenk47d1a6e2002-11-03 00:01:44 +0000892#endif
Siarhei Siamashka27669662015-01-08 09:02:31 +0200893 print_pre_console_buffer(PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL);
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100894 return 0;
wdenk47d1a6e2002-11-03 00:01:44 +0000895}
896
Simon Glassb0265422017-01-16 07:03:26 -0700897#endif /* CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV) */