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Tom Rini83d290c2018-05-06 17:58:06 -04001// SPDX-License-Identifier: GPL-2.0+
wdenk47d1a6e2002-11-03 00:01:44 +00002/*
3 * (C) Copyright 2000
4 * Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio@tin.it
wdenk47d1a6e2002-11-03 00:01:44 +00005 */
6
7#include <common.h>
Simon Glass24b852a2015-11-08 23:47:45 -07008#include <console.h>
Simon Glassd6ea5302015-06-23 15:38:33 -06009#include <debug_uart.h>
Simon Glass7b3c4c32017-07-27 09:31:04 -060010#include <dm.h>
Simon Glass9fb625c2019-08-01 09:46:51 -060011#include <env.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>
Simon Glassf3998fd2019-08-02 09:44:25 -060020#include <env_internal.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;
Joe Hershbergerb2f58d82018-07-02 20:06:48 -0500200 int prev;
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100201
Joe Hershbergerb2f58d82018-07-02 20:06:48 -0500202 prev = disable_ctrlc(1);
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100203 for (i = 0; i < cd_count[file]; i++) {
204 dev = console_devices[file][i];
205 if (dev->tstc != NULL) {
Simon Glass709ea542014-07-23 06:54:59 -0600206 ret = dev->tstc(dev);
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100207 if (ret > 0) {
208 tstcdev = dev;
Joe Hershbergerb2f58d82018-07-02 20:06:48 -0500209 disable_ctrlc(prev);
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100210 return ret;
211 }
212 }
213 }
Joe Hershbergerb2f58d82018-07-02 20:06:48 -0500214 disable_ctrlc(prev);
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100215
216 return 0;
217}
218
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100219static void console_putc(int file, const char c)
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100220{
221 int i;
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200222 struct stdio_dev *dev;
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100223
224 for (i = 0; i < cd_count[file]; i++) {
225 dev = console_devices[file][i];
226 if (dev->putc != NULL)
Simon Glass709ea542014-07-23 06:54:59 -0600227 dev->putc(dev, c);
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100228 }
229}
230
Hans de Goedea8552c72015-05-05 13:13:36 +0200231static void console_puts_noserial(int file, const char *s)
Siarhei Siamashka27669662015-01-08 09:02:31 +0200232{
233 int i;
234 struct stdio_dev *dev;
235
236 for (i = 0; i < cd_count[file]; i++) {
237 dev = console_devices[file][i];
Simon Glass42f9f912017-07-27 09:31:03 -0600238 if (dev->puts != NULL && !console_dev_is_serial(dev))
Hans de Goedea8552c72015-05-05 13:13:36 +0200239 dev->puts(dev, s);
Siarhei Siamashka27669662015-01-08 09:02:31 +0200240 }
241}
Siarhei Siamashka27669662015-01-08 09:02:31 +0200242
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100243static void console_puts(int file, const char *s)
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100244{
245 int i;
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200246 struct stdio_dev *dev;
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100247
248 for (i = 0; i < cd_count[file]; i++) {
249 dev = console_devices[file][i];
250 if (dev->puts != NULL)
Simon Glass709ea542014-07-23 06:54:59 -0600251 dev->puts(dev, s);
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100252 }
253}
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100254
Tom Rini5e63c962019-10-30 09:18:43 -0400255#if CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV)
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200256static inline void console_doenv(int file, struct stdio_dev *dev)
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100257{
258 iomux_doenv(file, dev->name);
259}
Tom Rini5e63c962019-10-30 09:18:43 -0400260#endif
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100261#else
262static inline int console_getc(int file)
263{
Simon Glass709ea542014-07-23 06:54:59 -0600264 return stdio_devices[file]->getc(stdio_devices[file]);
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100265}
266
267static inline int console_tstc(int file)
268{
Simon Glass709ea542014-07-23 06:54:59 -0600269 return stdio_devices[file]->tstc(stdio_devices[file]);
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100270}
271
272static inline void console_putc(int file, const char c)
273{
Simon Glass709ea542014-07-23 06:54:59 -0600274 stdio_devices[file]->putc(stdio_devices[file], c);
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100275}
276
Hans de Goedea8552c72015-05-05 13:13:36 +0200277static inline void console_puts_noserial(int file, const char *s)
Siarhei Siamashka27669662015-01-08 09:02:31 +0200278{
Simon Glass42f9f912017-07-27 09:31:03 -0600279 if (!console_dev_is_serial(stdio_devices[file]))
Hans de Goedea8552c72015-05-05 13:13:36 +0200280 stdio_devices[file]->puts(stdio_devices[file], s);
Siarhei Siamashka27669662015-01-08 09:02:31 +0200281}
Siarhei Siamashka27669662015-01-08 09:02:31 +0200282
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100283static inline void console_puts(int file, const char *s)
284{
Simon Glass709ea542014-07-23 06:54:59 -0600285 stdio_devices[file]->puts(stdio_devices[file], s);
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100286}
287
Tom Rini5e63c962019-10-30 09:18:43 -0400288#if CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV)
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200289static inline void console_doenv(int file, struct stdio_dev *dev)
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100290{
291 console_setfile(file, dev);
292}
Tom Rini5e63c962019-10-30 09:18:43 -0400293#endif
Simon Glassb0265422017-01-16 07:03:26 -0700294#endif /* CONIFIG_IS_ENABLED(CONSOLE_MUX) */
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100295
wdenk47d1a6e2002-11-03 00:01:44 +0000296/** U-Boot INITIAL CONSOLE-NOT COMPATIBLE FUNCTIONS *************************/
297
Wolfgang Denkd9c27252010-06-20 17:14:14 +0200298int serial_printf(const char *fmt, ...)
wdenk47d1a6e2002-11-03 00:01:44 +0000299{
300 va_list args;
301 uint i;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200302 char printbuffer[CONFIG_SYS_PBSIZE];
wdenk47d1a6e2002-11-03 00:01:44 +0000303
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100304 va_start(args, fmt);
wdenk47d1a6e2002-11-03 00:01:44 +0000305
306 /* For this to work, printbuffer must be larger than
307 * anything we ever want to print.
308 */
Sonny Rao068af6f2011-10-10 09:22:31 +0000309 i = vscnprintf(printbuffer, sizeof(printbuffer), fmt, args);
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100310 va_end(args);
wdenk47d1a6e2002-11-03 00:01:44 +0000311
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100312 serial_puts(printbuffer);
Wolfgang Denkd9c27252010-06-20 17:14:14 +0200313 return i;
wdenk47d1a6e2002-11-03 00:01:44 +0000314}
315
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100316int fgetc(int file)
wdenk47d1a6e2002-11-03 00:01:44 +0000317{
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100318 if (file < MAX_FILES) {
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100319 /*
320 * Effectively poll for input wherever it may be available.
321 */
322 for (;;) {
Andreas J. Reichel64407462016-07-13 12:56:51 +0200323 WATCHDOG_RESET();
Patrick Delaunay273a1252018-08-03 13:38:44 +0200324#if CONFIG_IS_ENABLED(CONSOLE_MUX)
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100325 /*
326 * Upper layer may have already called tstc() so
327 * check for that first.
328 */
329 if (tstcdev != NULL)
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100330 return console_getc(file);
331 console_tstc(file);
Patrick Delaunay273a1252018-08-03 13:38:44 +0200332#else
333 if (console_tstc(file))
334 return console_getc(file);
335#endif
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100336#ifdef CONFIG_WATCHDOG
337 /*
338 * If the watchdog must be rate-limited then it should
339 * already be handled in board-specific code.
340 */
341 udelay(1);
342#endif
343 }
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100344 }
wdenk47d1a6e2002-11-03 00:01:44 +0000345
346 return -1;
347}
348
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100349int ftstc(int file)
wdenk47d1a6e2002-11-03 00:01:44 +0000350{
351 if (file < MAX_FILES)
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100352 return console_tstc(file);
wdenk47d1a6e2002-11-03 00:01:44 +0000353
354 return -1;
355}
356
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100357void fputc(int file, const char c)
wdenk47d1a6e2002-11-03 00:01:44 +0000358{
359 if (file < MAX_FILES)
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100360 console_putc(file, c);
wdenk47d1a6e2002-11-03 00:01:44 +0000361}
362
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100363void fputs(int file, const char *s)
wdenk47d1a6e2002-11-03 00:01:44 +0000364{
365 if (file < MAX_FILES)
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100366 console_puts(file, s);
wdenk47d1a6e2002-11-03 00:01:44 +0000367}
368
Wolfgang Denkd9c27252010-06-20 17:14:14 +0200369int fprintf(int file, const char *fmt, ...)
wdenk47d1a6e2002-11-03 00:01:44 +0000370{
371 va_list args;
372 uint i;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200373 char printbuffer[CONFIG_SYS_PBSIZE];
wdenk47d1a6e2002-11-03 00:01:44 +0000374
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100375 va_start(args, fmt);
wdenk47d1a6e2002-11-03 00:01:44 +0000376
377 /* For this to work, printbuffer must be larger than
378 * anything we ever want to print.
379 */
Sonny Rao068af6f2011-10-10 09:22:31 +0000380 i = vscnprintf(printbuffer, sizeof(printbuffer), fmt, args);
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100381 va_end(args);
wdenk47d1a6e2002-11-03 00:01:44 +0000382
383 /* Send to desired file */
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100384 fputs(file, printbuffer);
Wolfgang Denkd9c27252010-06-20 17:14:14 +0200385 return i;
wdenk47d1a6e2002-11-03 00:01:44 +0000386}
387
388/** U-Boot INITIAL CONSOLE-COMPATIBLE FUNCTION *****************************/
389
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100390int getc(void)
wdenk47d1a6e2002-11-03 00:01:44 +0000391{
Mark Jacksonf5c3ba72008-08-25 19:21:30 +0100392#ifdef CONFIG_DISABLE_CONSOLE
393 if (gd->flags & GD_FLG_DISABLE_CONSOLE)
394 return 0;
395#endif
396
Graeme Russe3e454c2011-08-29 02:14:05 +0000397 if (!gd->have_console)
398 return 0;
399
Simon Glass9854a872015-11-08 23:47:48 -0700400#ifdef CONFIG_CONSOLE_RECORD
401 if (gd->console_in.start) {
402 int ch;
403
Heinrich Schuchardta3a9e042020-02-12 18:23:49 +0100404 ch = membuff_getbyte((struct membuff *)&gd->console_in);
Simon Glass9854a872015-11-08 23:47:48 -0700405 if (ch != -1)
406 return 1;
407 }
408#endif
wdenk47d1a6e2002-11-03 00:01:44 +0000409 if (gd->flags & GD_FLG_DEVINIT) {
410 /* Get from the standard input */
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100411 return fgetc(stdin);
wdenk47d1a6e2002-11-03 00:01:44 +0000412 }
413
414 /* Send directly to the handler */
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100415 return serial_getc();
wdenk47d1a6e2002-11-03 00:01:44 +0000416}
417
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100418int tstc(void)
wdenk47d1a6e2002-11-03 00:01:44 +0000419{
Mark Jacksonf5c3ba72008-08-25 19:21:30 +0100420#ifdef CONFIG_DISABLE_CONSOLE
421 if (gd->flags & GD_FLG_DISABLE_CONSOLE)
422 return 0;
423#endif
424
Graeme Russe3e454c2011-08-29 02:14:05 +0000425 if (!gd->have_console)
426 return 0;
Simon Glass9854a872015-11-08 23:47:48 -0700427#ifdef CONFIG_CONSOLE_RECORD
428 if (gd->console_in.start) {
Heinrich Schuchardta3a9e042020-02-12 18:23:49 +0100429 if (membuff_peekbyte((struct membuff *)&gd->console_in) != -1)
Simon Glass9854a872015-11-08 23:47:48 -0700430 return 1;
431 }
432#endif
wdenk47d1a6e2002-11-03 00:01:44 +0000433 if (gd->flags & GD_FLG_DEVINIT) {
434 /* Test the standard input */
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100435 return ftstc(stdin);
wdenk47d1a6e2002-11-03 00:01:44 +0000436 }
437
438 /* Send directly to the handler */
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100439 return serial_tstc();
wdenk47d1a6e2002-11-03 00:01:44 +0000440}
441
Siarhei Siamashka27669662015-01-08 09:02:31 +0200442#define PRE_CONSOLE_FLUSHPOINT1_SERIAL 0
443#define PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL 1
444
Simon Glass8f925582016-10-17 20:12:36 -0600445#if CONFIG_IS_ENABLED(PRE_CONSOLE_BUFFER)
Graeme Russ9558b482011-09-01 00:48:27 +0000446#define CIRC_BUF_IDX(idx) ((idx) % (unsigned long)CONFIG_PRE_CON_BUF_SZ)
447
448static void pre_console_putc(const char c)
449{
Simon Glass4e6bafa2017-06-15 21:37:52 -0600450 char *buffer;
451
452 buffer = map_sysmem(CONFIG_PRE_CON_BUF_ADDR, CONFIG_PRE_CON_BUF_SZ);
Graeme Russ9558b482011-09-01 00:48:27 +0000453
454 buffer[CIRC_BUF_IDX(gd->precon_buf_idx++)] = c;
Simon Glass4e6bafa2017-06-15 21:37:52 -0600455
456 unmap_sysmem(buffer);
Graeme Russ9558b482011-09-01 00:48:27 +0000457}
458
Soeren Mochbe135cc2017-11-04 16:14:09 +0100459static void pre_console_puts(const char *s)
460{
461 while (*s)
462 pre_console_putc(*s++);
463}
464
Siarhei Siamashka27669662015-01-08 09:02:31 +0200465static void print_pre_console_buffer(int flushpoint)
Graeme Russ9558b482011-09-01 00:48:27 +0000466{
Hans de Goedea8552c72015-05-05 13:13:36 +0200467 unsigned long in = 0, out = 0;
Hans de Goedea8552c72015-05-05 13:13:36 +0200468 char buf_out[CONFIG_PRE_CON_BUF_SZ + 1];
Simon Glass4e6bafa2017-06-15 21:37:52 -0600469 char *buf_in;
Graeme Russ9558b482011-09-01 00:48:27 +0000470
Patrick Delaunay13551b92019-08-02 14:58:10 +0200471#ifdef CONFIG_SILENT_CONSOLE
472 if (gd->flags & GD_FLG_SILENT)
473 return;
474#endif
475
Simon Glass4e6bafa2017-06-15 21:37:52 -0600476 buf_in = map_sysmem(CONFIG_PRE_CON_BUF_ADDR, CONFIG_PRE_CON_BUF_SZ);
Graeme Russ9558b482011-09-01 00:48:27 +0000477 if (gd->precon_buf_idx > CONFIG_PRE_CON_BUF_SZ)
Hans de Goedea8552c72015-05-05 13:13:36 +0200478 in = gd->precon_buf_idx - CONFIG_PRE_CON_BUF_SZ;
Graeme Russ9558b482011-09-01 00:48:27 +0000479
Hans de Goedea8552c72015-05-05 13:13:36 +0200480 while (in < gd->precon_buf_idx)
481 buf_out[out++] = buf_in[CIRC_BUF_IDX(in++)];
Simon Glass4e6bafa2017-06-15 21:37:52 -0600482 unmap_sysmem(buf_in);
Hans de Goedea8552c72015-05-05 13:13:36 +0200483
484 buf_out[out] = 0;
485
486 switch (flushpoint) {
487 case PRE_CONSOLE_FLUSHPOINT1_SERIAL:
488 puts(buf_out);
489 break;
490 case PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL:
491 console_puts_noserial(stdout, buf_out);
492 break;
493 }
Graeme Russ9558b482011-09-01 00:48:27 +0000494}
495#else
496static inline void pre_console_putc(const char c) {}
Soeren Mochbe135cc2017-11-04 16:14:09 +0100497static inline void pre_console_puts(const char *s) {}
Siarhei Siamashka27669662015-01-08 09:02:31 +0200498static inline void print_pre_console_buffer(int flushpoint) {}
Graeme Russ9558b482011-09-01 00:48:27 +0000499#endif
500
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100501void putc(const char c)
wdenk47d1a6e2002-11-03 00:01:44 +0000502{
Simon Glass64e9b4f2017-12-04 13:48:19 -0700503#ifdef CONFIG_SANDBOX
504 /* sandbox can send characters to stdout before it has a console */
505 if (!gd || !(gd->flags & GD_FLG_SERIAL_READY)) {
506 os_putc(c);
507 return;
508 }
509#endif
Simon Glassd6ea5302015-06-23 15:38:33 -0600510#ifdef CONFIG_DEBUG_UART
511 /* if we don't have a console yet, use the debug UART */
512 if (!gd || !(gd->flags & GD_FLG_SERIAL_READY)) {
513 printch(c);
514 return;
515 }
516#endif
Simon Glassaf880e22018-06-12 00:04:56 -0600517 if (!gd)
518 return;
Simon Glass9854a872015-11-08 23:47:48 -0700519#ifdef CONFIG_CONSOLE_RECORD
Simon Glassaf880e22018-06-12 00:04:56 -0600520 if ((gd->flags & GD_FLG_RECORD) && gd->console_out.start)
Heinrich Schuchardta3a9e042020-02-12 18:23:49 +0100521 membuff_putbyte((struct membuff *)&gd->console_out, c);
Simon Glass9854a872015-11-08 23:47:48 -0700522#endif
wdenka6cccae2004-02-06 21:48:22 +0000523#ifdef CONFIG_SILENT_CONSOLE
Patrick Delaunay13551b92019-08-02 14:58:10 +0200524 if (gd->flags & GD_FLG_SILENT) {
525 if (!(gd->flags & GD_FLG_DEVINIT))
526 pre_console_putc(c);
wdenkf6e20fc2004-02-08 19:38:38 +0000527 return;
Patrick Delaunay13551b92019-08-02 14:58:10 +0200528 }
wdenka6cccae2004-02-06 21:48:22 +0000529#endif
530
Mark Jacksonf5c3ba72008-08-25 19:21:30 +0100531#ifdef CONFIG_DISABLE_CONSOLE
532 if (gd->flags & GD_FLG_DISABLE_CONSOLE)
533 return;
534#endif
535
Graeme Russe3e454c2011-08-29 02:14:05 +0000536 if (!gd->have_console)
Graeme Russ9558b482011-09-01 00:48:27 +0000537 return pre_console_putc(c);
Graeme Russe3e454c2011-08-29 02:14:05 +0000538
wdenk47d1a6e2002-11-03 00:01:44 +0000539 if (gd->flags & GD_FLG_DEVINIT) {
540 /* Send to the standard output */
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100541 fputc(stdout, c);
wdenk47d1a6e2002-11-03 00:01:44 +0000542 } else {
543 /* Send directly to the handler */
Siarhei Siamashka27669662015-01-08 09:02:31 +0200544 pre_console_putc(c);
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100545 serial_putc(c);
wdenk47d1a6e2002-11-03 00:01:44 +0000546 }
547}
548
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100549void puts(const char *s)
wdenk47d1a6e2002-11-03 00:01:44 +0000550{
Simon Glass36bcea62018-11-15 18:44:04 -0700551#ifdef CONFIG_SANDBOX
552 /* sandbox can send characters to stdout before it has a console */
553 if (!gd || !(gd->flags & GD_FLG_SERIAL_READY)) {
554 os_puts(s);
555 return;
556 }
557#endif
Soeren Mochbe135cc2017-11-04 16:14:09 +0100558#ifdef CONFIG_DEBUG_UART
559 if (!gd || !(gd->flags & GD_FLG_SERIAL_READY)) {
560 while (*s) {
561 int ch = *s++;
562
563 printch(ch);
564 }
565 return;
566 }
567#endif
Simon Glassaf880e22018-06-12 00:04:56 -0600568 if (!gd)
569 return;
Soeren Mochbe135cc2017-11-04 16:14:09 +0100570#ifdef CONFIG_CONSOLE_RECORD
Simon Glassaf880e22018-06-12 00:04:56 -0600571 if ((gd->flags & GD_FLG_RECORD) && gd->console_out.start)
Heinrich Schuchardta3a9e042020-02-12 18:23:49 +0100572 membuff_put((struct membuff *)&gd->console_out, s, strlen(s));
Soeren Mochbe135cc2017-11-04 16:14:09 +0100573#endif
574#ifdef CONFIG_SILENT_CONSOLE
Patrick Delaunay13551b92019-08-02 14:58:10 +0200575 if (gd->flags & GD_FLG_SILENT) {
576 if (!(gd->flags & GD_FLG_DEVINIT))
577 pre_console_puts(s);
Soeren Mochbe135cc2017-11-04 16:14:09 +0100578 return;
Patrick Delaunay13551b92019-08-02 14:58:10 +0200579 }
Soeren Mochbe135cc2017-11-04 16:14:09 +0100580#endif
581
582#ifdef CONFIG_DISABLE_CONSOLE
583 if (gd->flags & GD_FLG_DISABLE_CONSOLE)
584 return;
585#endif
586
587 if (!gd->have_console)
588 return pre_console_puts(s);
589
590 if (gd->flags & GD_FLG_DEVINIT) {
591 /* Send to the standard output */
592 fputs(stdout, s);
593 } else {
594 /* Send directly to the handler */
595 pre_console_puts(s);
596 serial_puts(s);
597 }
wdenk47d1a6e2002-11-03 00:01:44 +0000598}
599
Simon Glass9854a872015-11-08 23:47:48 -0700600#ifdef CONFIG_CONSOLE_RECORD
601int console_record_init(void)
602{
603 int ret;
604
Heinrich Schuchardta3a9e042020-02-12 18:23:49 +0100605 ret = membuff_new((struct membuff *)&gd->console_out,
606 CONFIG_CONSOLE_RECORD_OUT_SIZE);
Simon Glass9854a872015-11-08 23:47:48 -0700607 if (ret)
608 return ret;
Heinrich Schuchardta3a9e042020-02-12 18:23:49 +0100609 ret = membuff_new((struct membuff *)&gd->console_in,
610 CONFIG_CONSOLE_RECORD_IN_SIZE);
Simon Glass9854a872015-11-08 23:47:48 -0700611
612 return ret;
613}
614
615void console_record_reset(void)
616{
Heinrich Schuchardta3a9e042020-02-12 18:23:49 +0100617 membuff_purge((struct membuff *)&gd->console_out);
618 membuff_purge((struct membuff *)&gd->console_in);
Simon Glass9854a872015-11-08 23:47:48 -0700619}
620
621void console_record_reset_enable(void)
622{
623 console_record_reset();
624 gd->flags |= GD_FLG_RECORD;
625}
Simon Glassb6123122020-01-27 08:49:54 -0700626
627int console_record_readline(char *str, int maxlen)
628{
Heinrich Schuchardta3a9e042020-02-12 18:23:49 +0100629 return membuff_readline((struct membuff *)&gd->console_out, str,
630 maxlen, ' ');
Simon Glassb6123122020-01-27 08:49:54 -0700631}
632
633int console_record_avail(void)
634{
Heinrich Schuchardta3a9e042020-02-12 18:23:49 +0100635 return membuff_avail((struct membuff *)&gd->console_out);
Simon Glassb6123122020-01-27 08:49:54 -0700636}
637
Simon Glass9854a872015-11-08 23:47:48 -0700638#endif
639
wdenk47d1a6e2002-11-03 00:01:44 +0000640/* test if ctrl-c was pressed */
641static int ctrlc_disabled = 0; /* see disable_ctrl() */
642static int ctrlc_was_pressed = 0;
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100643int ctrlc(void)
wdenk47d1a6e2002-11-03 00:01:44 +0000644{
wdenk47d1a6e2002-11-03 00:01:44 +0000645 if (!ctrlc_disabled && gd->have_console) {
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100646 if (tstc()) {
647 switch (getc()) {
wdenk47d1a6e2002-11-03 00:01:44 +0000648 case 0x03: /* ^C - Control C */
649 ctrlc_was_pressed = 1;
650 return 1;
651 default:
652 break;
653 }
654 }
655 }
Simon Glass8969ea32014-09-14 12:40:15 -0600656
wdenk47d1a6e2002-11-03 00:01:44 +0000657 return 0;
658}
Pierre Auberta5dffa42014-04-24 10:30:07 +0200659/* Reads user's confirmation.
660 Returns 1 if user's input is "y", "Y", "yes" or "YES"
661*/
662int confirm_yesno(void)
663{
664 int i;
665 char str_input[5];
wdenk47d1a6e2002-11-03 00:01:44 +0000666
Pierre Auberta5dffa42014-04-24 10:30:07 +0200667 /* Flush input */
668 while (tstc())
669 getc();
670 i = 0;
671 while (i < sizeof(str_input)) {
672 str_input[i] = getc();
673 putc(str_input[i]);
674 if (str_input[i] == '\r')
675 break;
676 i++;
677 }
678 putc('\n');
679 if (strncmp(str_input, "y\r", 2) == 0 ||
680 strncmp(str_input, "Y\r", 2) == 0 ||
681 strncmp(str_input, "yes\r", 4) == 0 ||
682 strncmp(str_input, "YES\r", 4) == 0)
683 return 1;
684 return 0;
685}
wdenk47d1a6e2002-11-03 00:01:44 +0000686/* pass 1 to disable ctrlc() checking, 0 to enable.
687 * returns previous state
688 */
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100689int disable_ctrlc(int disable)
wdenk47d1a6e2002-11-03 00:01:44 +0000690{
691 int prev = ctrlc_disabled; /* save previous state */
692
693 ctrlc_disabled = disable;
694 return prev;
695}
696
697int had_ctrlc (void)
698{
699 return ctrlc_was_pressed;
700}
701
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100702void clear_ctrlc(void)
wdenk47d1a6e2002-11-03 00:01:44 +0000703{
704 ctrlc_was_pressed = 0;
705}
706
wdenk47d1a6e2002-11-03 00:01:44 +0000707/** U-Boot INIT FUNCTIONS *************************************************/
708
Mike Frysingerd7be3052010-10-20 07:18:03 -0400709struct stdio_dev *search_device(int flags, const char *name)
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200710{
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200711 struct stdio_dev *dev;
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200712
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200713 dev = stdio_get_by_name(name);
Simon Glassa2931b32016-02-06 14:31:37 -0700714#ifdef CONFIG_VIDCONSOLE_AS_LCD
715 if (!dev && !strcmp(name, "lcd"))
716 dev = stdio_get_by_name("vidconsole");
717#endif
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200718
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100719 if (dev && (dev->flags & flags))
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200720 return dev;
721
722 return NULL;
723}
724
Mike Frysingerd7be3052010-10-20 07:18:03 -0400725int console_assign(int file, const char *devname)
wdenk47d1a6e2002-11-03 00:01:44 +0000726{
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200727 int flag;
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200728 struct stdio_dev *dev;
wdenk47d1a6e2002-11-03 00:01:44 +0000729
730 /* Check for valid file */
731 switch (file) {
732 case stdin:
733 flag = DEV_FLAGS_INPUT;
734 break;
735 case stdout:
736 case stderr:
737 flag = DEV_FLAGS_OUTPUT;
738 break;
739 default:
740 return -1;
741 }
742
743 /* Check for valid device name */
744
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200745 dev = search_device(flag, devname);
wdenk47d1a6e2002-11-03 00:01:44 +0000746
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100747 if (dev)
748 return console_setfile(file, dev);
wdenk47d1a6e2002-11-03 00:01:44 +0000749
750 return -1;
751}
752
Patrick Delaunay13551b92019-08-02 14:58:10 +0200753/* return true if the 'silent' flag is removed */
754static bool console_update_silent(void)
Chris Packham43e0a3d2016-09-23 15:59:43 +1200755{
756#ifdef CONFIG_SILENT_CONSOLE
Patrick Delaunay13551b92019-08-02 14:58:10 +0200757 if (env_get("silent")) {
Chris Packham43e0a3d2016-09-23 15:59:43 +1200758 gd->flags |= GD_FLG_SILENT;
Patrick Delaunay13551b92019-08-02 14:58:10 +0200759 } else {
760 unsigned long flags = gd->flags;
761
Chris Packham43e0a3d2016-09-23 15:59:43 +1200762 gd->flags &= ~GD_FLG_SILENT;
Patrick Delaunay13551b92019-08-02 14:58:10 +0200763
764 return !!(flags & GD_FLG_SILENT);
765 }
Chris Packham43e0a3d2016-09-23 15:59:43 +1200766#endif
Patrick Delaunay13551b92019-08-02 14:58:10 +0200767
768 return false;
Chris Packham43e0a3d2016-09-23 15:59:43 +1200769}
770
Simon Glassb0895382017-06-15 21:37:50 -0600771int console_announce_r(void)
772{
773#if !CONFIG_IS_ENABLED(PRE_CONSOLE_BUFFER)
774 char buf[DISPLAY_OPTIONS_BANNER_LENGTH];
775
776 display_options_get_banner(false, buf, sizeof(buf));
777
778 console_puts_noserial(stdout, buf);
779#endif
780
781 return 0;
782}
783
wdenk47d1a6e2002-11-03 00:01:44 +0000784/* Called before relocation - use serial functions */
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100785int console_init_f(void)
wdenk47d1a6e2002-11-03 00:01:44 +0000786{
wdenk47d1a6e2002-11-03 00:01:44 +0000787 gd->have_console = 1;
wdenkf72da342003-10-10 10:05:42 +0000788
Chris Packham43e0a3d2016-09-23 15:59:43 +1200789 console_update_silent();
wdenkf72da342003-10-10 10:05:42 +0000790
Siarhei Siamashka27669662015-01-08 09:02:31 +0200791 print_pre_console_buffer(PRE_CONSOLE_FLUSHPOINT1_SERIAL);
Graeme Russ9558b482011-09-01 00:48:27 +0000792
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100793 return 0;
wdenk47d1a6e2002-11-03 00:01:44 +0000794}
795
Jean-Christophe PLAGNIOL-VILLARD7e3be7c2009-05-16 12:14:55 +0200796void stdio_print_current_devices(void)
797{
Jean-Christophe PLAGNIOL-VILLARD7e3be7c2009-05-16 12:14:55 +0200798 /* Print information */
799 puts("In: ");
800 if (stdio_devices[stdin] == NULL) {
801 puts("No input devices available!\n");
802 } else {
803 printf ("%s\n", stdio_devices[stdin]->name);
804 }
805
806 puts("Out: ");
807 if (stdio_devices[stdout] == NULL) {
808 puts("No output devices available!\n");
809 } else {
810 printf ("%s\n", stdio_devices[stdout]->name);
811 }
812
813 puts("Err: ");
814 if (stdio_devices[stderr] == NULL) {
815 puts("No error devices available!\n");
816 } else {
817 printf ("%s\n", stdio_devices[stderr]->name);
818 }
Jean-Christophe PLAGNIOL-VILLARD7e3be7c2009-05-16 12:14:55 +0200819}
820
Simon Glassb0265422017-01-16 07:03:26 -0700821#if CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV)
wdenk47d1a6e2002-11-03 00:01:44 +0000822/* Called after the relocation - use desired console functions */
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100823int console_init_r(void)
wdenk47d1a6e2002-11-03 00:01:44 +0000824{
825 char *stdinname, *stdoutname, *stderrname;
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200826 struct stdio_dev *inputdev = NULL, *outputdev = NULL, *errdev = NULL;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200827#ifdef CONFIG_SYS_CONSOLE_ENV_OVERWRITE
wdenk6e592382004-04-18 17:39:38 +0000828 int i;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200829#endif /* CONFIG_SYS_CONSOLE_ENV_OVERWRITE */
Simon Glassb0265422017-01-16 07:03:26 -0700830#if CONFIG_IS_ENABLED(CONSOLE_MUX)
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100831 int iomux_err = 0;
832#endif
Patrick Delaunay13551b92019-08-02 14:58:10 +0200833 int flushpoint;
wdenk47d1a6e2002-11-03 00:01:44 +0000834
Patrick Delaunaybf46be72019-08-02 14:58:09 +0200835 /* update silent for env loaded from flash (initr_env) */
Patrick Delaunay13551b92019-08-02 14:58:10 +0200836 if (console_update_silent())
837 flushpoint = PRE_CONSOLE_FLUSHPOINT1_SERIAL;
838 else
839 flushpoint = PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL;
Patrick Delaunaybf46be72019-08-02 14:58:09 +0200840
wdenk47d1a6e2002-11-03 00:01:44 +0000841 /* set default handlers at first */
Martin Dorwig49cad542015-01-26 15:22:54 -0700842 gd->jt->getc = serial_getc;
843 gd->jt->tstc = serial_tstc;
844 gd->jt->putc = serial_putc;
845 gd->jt->puts = serial_puts;
846 gd->jt->printf = serial_printf;
wdenk47d1a6e2002-11-03 00:01:44 +0000847
848 /* stdin stdout and stderr are in environment */
849 /* scan for it */
Simon Glass00caae62017-08-03 12:22:12 -0600850 stdinname = env_get("stdin");
851 stdoutname = env_get("stdout");
852 stderrname = env_get("stderr");
wdenk47d1a6e2002-11-03 00:01:44 +0000853
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200854 if (OVERWRITE_CONSOLE == 0) { /* if not overwritten by config switch */
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100855 inputdev = search_device(DEV_FLAGS_INPUT, stdinname);
856 outputdev = search_device(DEV_FLAGS_OUTPUT, stdoutname);
857 errdev = search_device(DEV_FLAGS_OUTPUT, stderrname);
Simon Glassb0265422017-01-16 07:03:26 -0700858#if CONFIG_IS_ENABLED(CONSOLE_MUX)
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100859 iomux_err = iomux_doenv(stdin, stdinname);
860 iomux_err += iomux_doenv(stdout, stdoutname);
861 iomux_err += iomux_doenv(stderr, stderrname);
862 if (!iomux_err)
863 /* Successful, so skip all the code below. */
864 goto done;
865#endif
wdenk47d1a6e2002-11-03 00:01:44 +0000866 }
867 /* if the devices are overwritten or not found, use default device */
868 if (inputdev == NULL) {
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100869 inputdev = search_device(DEV_FLAGS_INPUT, "serial");
wdenk47d1a6e2002-11-03 00:01:44 +0000870 }
871 if (outputdev == NULL) {
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100872 outputdev = search_device(DEV_FLAGS_OUTPUT, "serial");
wdenk47d1a6e2002-11-03 00:01:44 +0000873 }
874 if (errdev == NULL) {
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100875 errdev = search_device(DEV_FLAGS_OUTPUT, "serial");
wdenk47d1a6e2002-11-03 00:01:44 +0000876 }
877 /* Initializes output console first */
878 if (outputdev != NULL) {
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100879 /* need to set a console if not done above. */
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100880 console_doenv(stdout, outputdev);
wdenk47d1a6e2002-11-03 00:01:44 +0000881 }
882 if (errdev != NULL) {
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100883 /* need to set a console if not done above. */
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100884 console_doenv(stderr, errdev);
wdenk47d1a6e2002-11-03 00:01:44 +0000885 }
886 if (inputdev != NULL) {
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100887 /* need to set a console if not done above. */
Jean-Christophe PLAGNIOL-VILLARD5f032012009-02-01 17:07:52 +0100888 console_doenv(stdin, inputdev);
wdenk47d1a6e2002-11-03 00:01:44 +0000889 }
890
Simon Glassb0265422017-01-16 07:03:26 -0700891#if CONFIG_IS_ENABLED(CONSOLE_MUX)
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100892done:
893#endif
894
Simon Glass78c112c2012-12-05 14:46:43 +0000895#ifndef CONFIG_SYS_CONSOLE_INFO_QUIET
Jean-Christophe PLAGNIOL-VILLARD7e3be7c2009-05-16 12:14:55 +0200896 stdio_print_current_devices();
Simon Glass78c112c2012-12-05 14:46:43 +0000897#endif /* CONFIG_SYS_CONSOLE_INFO_QUIET */
Simon Glassa2931b32016-02-06 14:31:37 -0700898#ifdef CONFIG_VIDCONSOLE_AS_LCD
899 if (strstr(stdoutname, "lcd"))
900 printf("Warning: Please change 'lcd' to 'vidconsole' in stdout/stderr environment vars\n");
901#endif
wdenk47d1a6e2002-11-03 00:01:44 +0000902
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200903#ifdef CONFIG_SYS_CONSOLE_ENV_OVERWRITE
wdenk47d1a6e2002-11-03 00:01:44 +0000904 /* set the environment variables (will overwrite previous env settings) */
Tom Rini27b42252018-05-03 09:12:26 -0400905 for (i = 0; i < MAX_FILES; i++) {
Simon Glass382bee52017-08-03 12:22:09 -0600906 env_set(stdio_names[i], stdio_devices[i]->name);
wdenk47d1a6e2002-11-03 00:01:44 +0000907 }
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200908#endif /* CONFIG_SYS_CONSOLE_ENV_OVERWRITE */
wdenk47d1a6e2002-11-03 00:01:44 +0000909
Joe Hershbergerc4e00572012-12-11 22:16:19 -0600910 gd->flags |= GD_FLG_DEVINIT; /* device initialization completed */
911
wdenk47d1a6e2002-11-03 00:01:44 +0000912#if 0
913 /* If nothing usable installed, use only the initial console */
914 if ((stdio_devices[stdin] == NULL) && (stdio_devices[stdout] == NULL))
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100915 return 0;
wdenk47d1a6e2002-11-03 00:01:44 +0000916#endif
Patrick Delaunay13551b92019-08-02 14:58:10 +0200917 print_pre_console_buffer(flushpoint);
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100918 return 0;
wdenk47d1a6e2002-11-03 00:01:44 +0000919}
920
Simon Glassb0265422017-01-16 07:03:26 -0700921#else /* !CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV) */
wdenk47d1a6e2002-11-03 00:01:44 +0000922
923/* Called after the relocation - use desired console functions */
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100924int console_init_r(void)
wdenk47d1a6e2002-11-03 00:01:44 +0000925{
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200926 struct stdio_dev *inputdev = NULL, *outputdev = NULL;
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200927 int i;
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200928 struct list_head *list = stdio_get_list();
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200929 struct list_head *pos;
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200930 struct stdio_dev *dev;
Patrick Delaunay13551b92019-08-02 14:58:10 +0200931 int flushpoint;
wdenk47d1a6e2002-11-03 00:01:44 +0000932
Patrick Delaunaybf46be72019-08-02 14:58:09 +0200933 /* update silent for env loaded from flash (initr_env) */
Patrick Delaunay13551b92019-08-02 14:58:10 +0200934 if (console_update_silent())
935 flushpoint = PRE_CONSOLE_FLUSHPOINT1_SERIAL;
936 else
937 flushpoint = PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL;
Chris Packham43e0a3d2016-09-23 15:59:43 +1200938
wdenkd791b1d2003-04-20 14:04:18 +0000939#ifdef CONFIG_SPLASH_SCREEN
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100940 /*
941 * suppress all output if splash screen is enabled and we have
Anatolij Gustschina7490812010-03-16 15:29:33 +0100942 * a bmp to display. We redirect the output from frame buffer
943 * console to serial console in this case or suppress it if
944 * "silent" mode was requested.
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100945 */
Simon Glass00caae62017-08-03 12:22:12 -0600946 if (env_get("splashimage") != NULL) {
Anatolij Gustschina7490812010-03-16 15:29:33 +0100947 if (!(gd->flags & GD_FLG_SILENT))
948 outputdev = search_device (DEV_FLAGS_OUTPUT, "serial");
949 }
wdenkf72da342003-10-10 10:05:42 +0000950#endif
951
wdenk47d1a6e2002-11-03 00:01:44 +0000952 /* Scan devices looking for input and output devices */
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200953 list_for_each(pos, list) {
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200954 dev = list_entry(pos, struct stdio_dev, list);
wdenk47d1a6e2002-11-03 00:01:44 +0000955
956 if ((dev->flags & DEV_FLAGS_INPUT) && (inputdev == NULL)) {
957 inputdev = dev;
958 }
959 if ((dev->flags & DEV_FLAGS_OUTPUT) && (outputdev == NULL)) {
960 outputdev = dev;
961 }
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200962 if(inputdev && outputdev)
963 break;
wdenk47d1a6e2002-11-03 00:01:44 +0000964 }
965
966 /* Initializes output console first */
967 if (outputdev != NULL) {
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100968 console_setfile(stdout, outputdev);
969 console_setfile(stderr, outputdev);
Simon Glassb0265422017-01-16 07:03:26 -0700970#if CONFIG_IS_ENABLED(CONSOLE_MUX)
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100971 console_devices[stdout][0] = outputdev;
972 console_devices[stderr][0] = outputdev;
973#endif
wdenk47d1a6e2002-11-03 00:01:44 +0000974 }
975
976 /* Initializes input console */
977 if (inputdev != NULL) {
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100978 console_setfile(stdin, inputdev);
Simon Glassb0265422017-01-16 07:03:26 -0700979#if CONFIG_IS_ENABLED(CONSOLE_MUX)
Gary Jennejohn16a28ef2008-11-06 15:04:23 +0100980 console_devices[stdin][0] = inputdev;
981#endif
wdenk47d1a6e2002-11-03 00:01:44 +0000982 }
983
Simon Glass78c112c2012-12-05 14:46:43 +0000984#ifndef CONFIG_SYS_CONSOLE_INFO_QUIET
Jean-Christophe PLAGNIOL-VILLARD7e3be7c2009-05-16 12:14:55 +0200985 stdio_print_current_devices();
Simon Glass78c112c2012-12-05 14:46:43 +0000986#endif /* CONFIG_SYS_CONSOLE_INFO_QUIET */
wdenk47d1a6e2002-11-03 00:01:44 +0000987
988 /* Setting environment variables */
Tom Rini27b42252018-05-03 09:12:26 -0400989 for (i = 0; i < MAX_FILES; i++) {
Simon Glass382bee52017-08-03 12:22:09 -0600990 env_set(stdio_names[i], stdio_devices[i]->name);
wdenk47d1a6e2002-11-03 00:01:44 +0000991 }
992
Joe Hershbergerc4e00572012-12-11 22:16:19 -0600993 gd->flags |= GD_FLG_DEVINIT; /* device initialization completed */
994
wdenk47d1a6e2002-11-03 00:01:44 +0000995#if 0
996 /* If nothing usable installed, use only the initial console */
997 if ((stdio_devices[stdin] == NULL) && (stdio_devices[stdout] == NULL))
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +0100998 return 0;
wdenk47d1a6e2002-11-03 00:01:44 +0000999#endif
Patrick Delaunay13551b92019-08-02 14:58:10 +02001000 print_pre_console_buffer(flushpoint);
Jean-Christophe PLAGNIOL-VILLARDec6f1492009-02-01 17:07:51 +01001001 return 0;
wdenk47d1a6e2002-11-03 00:01:44 +00001002}
1003
Simon Glassb0265422017-01-16 07:03:26 -07001004#endif /* CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV) */