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Commit | Line | Data |
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47d1a6e1 WD |
1 | /* |
2 | * (C) Copyright 2000 | |
3 | * Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio@tin.it | |
4 | * | |
1a459660 | 5 | * SPDX-License-Identifier: GPL-2.0+ |
47d1a6e1 WD |
6 | */ |
7 | ||
8 | #include <common.h> | |
24b852a7 | 9 | #include <console.h> |
d6ea5307 | 10 | #include <debug_uart.h> |
47d1a6e1 | 11 | #include <stdarg.h> |
482f4691 | 12 | #include <iomux.h> |
47d1a6e1 | 13 | #include <malloc.h> |
91b136c7 | 14 | #include <os.h> |
849d5d9c | 15 | #include <serial.h> |
52cb4d4f | 16 | #include <stdio_dev.h> |
27b207fd | 17 | #include <exports.h> |
849d5d9c | 18 | #include <environment.h> |
47d1a6e1 | 19 | |
d87080b7 WD |
20 | DECLARE_GLOBAL_DATA_PTR; |
21 | ||
849d5d9c JH |
22 | static int on_console(const char *name, const char *value, enum env_op op, |
23 | int flags) | |
24 | { | |
25 | int console = -1; | |
26 | ||
27 | /* Check for console redirection */ | |
28 | if (strcmp(name, "stdin") == 0) | |
29 | console = stdin; | |
30 | else if (strcmp(name, "stdout") == 0) | |
31 | console = stdout; | |
32 | else if (strcmp(name, "stderr") == 0) | |
33 | console = stderr; | |
34 | ||
35 | /* if not actually setting a console variable, we don't care */ | |
36 | if (console == -1 || (gd->flags & GD_FLG_DEVINIT) == 0) | |
37 | return 0; | |
38 | ||
39 | switch (op) { | |
40 | case env_op_create: | |
41 | case env_op_overwrite: | |
42 | ||
43 | #ifdef CONFIG_CONSOLE_MUX | |
44 | if (iomux_doenv(console, value)) | |
45 | return 1; | |
46 | #else | |
47 | /* Try assigning specified device */ | |
48 | if (console_assign(console, value) < 0) | |
49 | return 1; | |
50 | #endif /* CONFIG_CONSOLE_MUX */ | |
51 | return 0; | |
52 | ||
53 | case env_op_delete: | |
54 | if ((flags & H_FORCE) == 0) | |
55 | printf("Can't delete \"%s\"\n", name); | |
56 | return 1; | |
57 | ||
58 | default: | |
59 | return 0; | |
60 | } | |
61 | } | |
62 | U_BOOT_ENV_CALLBACK(console, on_console); | |
63 | ||
e080d545 JH |
64 | #ifdef CONFIG_SILENT_CONSOLE |
65 | static int on_silent(const char *name, const char *value, enum env_op op, | |
66 | int flags) | |
67 | { | |
68 | #ifndef CONFIG_SILENT_CONSOLE_UPDATE_ON_SET | |
69 | if (flags & H_INTERACTIVE) | |
70 | return 0; | |
71 | #endif | |
72 | #ifndef CONFIG_SILENT_CONSOLE_UPDATE_ON_RELOC | |
73 | if ((flags & H_INTERACTIVE) == 0) | |
74 | return 0; | |
75 | #endif | |
76 | ||
77 | if (value != NULL) | |
78 | gd->flags |= GD_FLG_SILENT; | |
79 | else | |
80 | gd->flags &= ~GD_FLG_SILENT; | |
81 | ||
82 | return 0; | |
83 | } | |
84 | U_BOOT_ENV_CALLBACK(silent, on_silent); | |
85 | #endif | |
86 | ||
6d0f6bcf | 87 | #ifdef CONFIG_SYS_CONSOLE_IS_IN_ENV |
47d1a6e1 WD |
88 | /* |
89 | * if overwrite_console returns 1, the stdin, stderr and stdout | |
90 | * are switched to the serial port, else the settings in the | |
91 | * environment are used | |
92 | */ | |
6d0f6bcf | 93 | #ifdef CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE |
ec6f1499 JCPV |
94 | extern int overwrite_console(void); |
95 | #define OVERWRITE_CONSOLE overwrite_console() | |
47d1a6e1 | 96 | #else |
83e40ba7 | 97 | #define OVERWRITE_CONSOLE 0 |
6d0f6bcf | 98 | #endif /* CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE */ |
47d1a6e1 | 99 | |
6d0f6bcf | 100 | #endif /* CONFIG_SYS_CONSOLE_IS_IN_ENV */ |
47d1a6e1 | 101 | |
52cb4d4f | 102 | static int console_setfile(int file, struct stdio_dev * dev) |
47d1a6e1 WD |
103 | { |
104 | int error = 0; | |
105 | ||
106 | if (dev == NULL) | |
107 | return -1; | |
108 | ||
109 | switch (file) { | |
110 | case stdin: | |
111 | case stdout: | |
112 | case stderr: | |
113 | /* Start new device */ | |
114 | if (dev->start) { | |
709ea543 | 115 | error = dev->start(dev); |
47d1a6e1 WD |
116 | /* If it's not started dont use it */ |
117 | if (error < 0) | |
118 | break; | |
119 | } | |
120 | ||
121 | /* Assign the new device (leaving the existing one started) */ | |
122 | stdio_devices[file] = dev; | |
123 | ||
124 | /* | |
125 | * Update monitor functions | |
126 | * (to use the console stuff by other applications) | |
127 | */ | |
128 | switch (file) { | |
129 | case stdin: | |
49cad547 MD |
130 | gd->jt->getc = getc; |
131 | gd->jt->tstc = tstc; | |
47d1a6e1 WD |
132 | break; |
133 | case stdout: | |
49cad547 MD |
134 | gd->jt->putc = putc; |
135 | gd->jt->puts = puts; | |
136 | gd->jt->printf = printf; | |
47d1a6e1 WD |
137 | break; |
138 | } | |
139 | break; | |
140 | ||
141 | default: /* Invalid file ID */ | |
142 | error = -1; | |
143 | } | |
144 | return error; | |
145 | } | |
146 | ||
16a28ef2 GJ |
147 | #if defined(CONFIG_CONSOLE_MUX) |
148 | /** Console I/O multiplexing *******************************************/ | |
149 | ||
52cb4d4f JCPV |
150 | static struct stdio_dev *tstcdev; |
151 | struct stdio_dev **console_devices[MAX_FILES]; | |
16a28ef2 GJ |
152 | int cd_count[MAX_FILES]; |
153 | ||
154 | /* | |
155 | * This depends on tstc() always being called before getc(). | |
156 | * This is guaranteed to be true because this routine is called | |
157 | * only from fgetc() which assures it. | |
158 | * No attempt is made to demultiplex multiple input sources. | |
159 | */ | |
5f032010 | 160 | static int console_getc(int file) |
16a28ef2 GJ |
161 | { |
162 | unsigned char ret; | |
163 | ||
164 | /* This is never called with testcdev == NULL */ | |
709ea543 | 165 | ret = tstcdev->getc(tstcdev); |
16a28ef2 GJ |
166 | tstcdev = NULL; |
167 | return ret; | |
168 | } | |
169 | ||
5f032010 | 170 | static int console_tstc(int file) |
16a28ef2 GJ |
171 | { |
172 | int i, ret; | |
52cb4d4f | 173 | struct stdio_dev *dev; |
16a28ef2 GJ |
174 | |
175 | disable_ctrlc(1); | |
176 | for (i = 0; i < cd_count[file]; i++) { | |
177 | dev = console_devices[file][i]; | |
178 | if (dev->tstc != NULL) { | |
709ea543 | 179 | ret = dev->tstc(dev); |
16a28ef2 GJ |
180 | if (ret > 0) { |
181 | tstcdev = dev; | |
182 | disable_ctrlc(0); | |
183 | return ret; | |
184 | } | |
185 | } | |
186 | } | |
187 | disable_ctrlc(0); | |
188 | ||
189 | return 0; | |
190 | } | |
191 | ||
5f032010 | 192 | static void console_putc(int file, const char c) |
16a28ef2 GJ |
193 | { |
194 | int i; | |
52cb4d4f | 195 | struct stdio_dev *dev; |
16a28ef2 GJ |
196 | |
197 | for (i = 0; i < cd_count[file]; i++) { | |
198 | dev = console_devices[file][i]; | |
199 | if (dev->putc != NULL) | |
709ea543 | 200 | dev->putc(dev, c); |
16a28ef2 GJ |
201 | } |
202 | } | |
203 | ||
27669667 | 204 | #ifdef CONFIG_PRE_CONSOLE_BUFFER |
a8552c7c | 205 | static void console_puts_noserial(int file, const char *s) |
27669667 SS |
206 | { |
207 | int i; | |
208 | struct stdio_dev *dev; | |
209 | ||
210 | for (i = 0; i < cd_count[file]; i++) { | |
211 | dev = console_devices[file][i]; | |
a8552c7c HG |
212 | if (dev->puts != NULL && strcmp(dev->name, "serial") != 0) |
213 | dev->puts(dev, s); | |
27669667 SS |
214 | } |
215 | } | |
216 | #endif | |
217 | ||
5f032010 | 218 | static void console_puts(int file, const char *s) |
16a28ef2 GJ |
219 | { |
220 | int i; | |
52cb4d4f | 221 | struct stdio_dev *dev; |
16a28ef2 GJ |
222 | |
223 | for (i = 0; i < cd_count[file]; i++) { | |
224 | dev = console_devices[file][i]; | |
225 | if (dev->puts != NULL) | |
709ea543 | 226 | dev->puts(dev, s); |
16a28ef2 GJ |
227 | } |
228 | } | |
5f032010 | 229 | |
52cb4d4f | 230 | static inline void console_doenv(int file, struct stdio_dev *dev) |
5f032010 JCPV |
231 | { |
232 | iomux_doenv(file, dev->name); | |
233 | } | |
234 | #else | |
235 | static inline int console_getc(int file) | |
236 | { | |
709ea543 | 237 | return stdio_devices[file]->getc(stdio_devices[file]); |
5f032010 JCPV |
238 | } |
239 | ||
240 | static inline int console_tstc(int file) | |
241 | { | |
709ea543 | 242 | return stdio_devices[file]->tstc(stdio_devices[file]); |
5f032010 JCPV |
243 | } |
244 | ||
245 | static inline void console_putc(int file, const char c) | |
246 | { | |
709ea543 | 247 | stdio_devices[file]->putc(stdio_devices[file], c); |
5f032010 JCPV |
248 | } |
249 | ||
27669667 | 250 | #ifdef CONFIG_PRE_CONSOLE_BUFFER |
a8552c7c | 251 | static inline void console_puts_noserial(int file, const char *s) |
27669667 SS |
252 | { |
253 | if (strcmp(stdio_devices[file]->name, "serial") != 0) | |
a8552c7c | 254 | stdio_devices[file]->puts(stdio_devices[file], s); |
27669667 SS |
255 | } |
256 | #endif | |
257 | ||
5f032010 JCPV |
258 | static inline void console_puts(int file, const char *s) |
259 | { | |
709ea543 | 260 | stdio_devices[file]->puts(stdio_devices[file], s); |
5f032010 JCPV |
261 | } |
262 | ||
52cb4d4f | 263 | static inline void console_doenv(int file, struct stdio_dev *dev) |
5f032010 JCPV |
264 | { |
265 | console_setfile(file, dev); | |
266 | } | |
16a28ef2 GJ |
267 | #endif /* defined(CONFIG_CONSOLE_MUX) */ |
268 | ||
47d1a6e1 WD |
269 | /** U-Boot INITIAL CONSOLE-NOT COMPATIBLE FUNCTIONS *************************/ |
270 | ||
d9c27253 | 271 | int serial_printf(const char *fmt, ...) |
47d1a6e1 WD |
272 | { |
273 | va_list args; | |
274 | uint i; | |
6d0f6bcf | 275 | char printbuffer[CONFIG_SYS_PBSIZE]; |
47d1a6e1 | 276 | |
ec6f1499 | 277 | va_start(args, fmt); |
47d1a6e1 WD |
278 | |
279 | /* For this to work, printbuffer must be larger than | |
280 | * anything we ever want to print. | |
281 | */ | |
068af6f8 | 282 | i = vscnprintf(printbuffer, sizeof(printbuffer), fmt, args); |
ec6f1499 | 283 | va_end(args); |
47d1a6e1 | 284 | |
ec6f1499 | 285 | serial_puts(printbuffer); |
d9c27253 | 286 | return i; |
47d1a6e1 WD |
287 | } |
288 | ||
ec6f1499 | 289 | int fgetc(int file) |
47d1a6e1 | 290 | { |
16a28ef2 GJ |
291 | if (file < MAX_FILES) { |
292 | #if defined(CONFIG_CONSOLE_MUX) | |
293 | /* | |
294 | * Effectively poll for input wherever it may be available. | |
295 | */ | |
296 | for (;;) { | |
297 | /* | |
298 | * Upper layer may have already called tstc() so | |
299 | * check for that first. | |
300 | */ | |
301 | if (tstcdev != NULL) | |
5f032010 JCPV |
302 | return console_getc(file); |
303 | console_tstc(file); | |
16a28ef2 GJ |
304 | #ifdef CONFIG_WATCHDOG |
305 | /* | |
306 | * If the watchdog must be rate-limited then it should | |
307 | * already be handled in board-specific code. | |
308 | */ | |
309 | udelay(1); | |
310 | #endif | |
311 | } | |
312 | #else | |
5f032010 | 313 | return console_getc(file); |
16a28ef2 GJ |
314 | #endif |
315 | } | |
47d1a6e1 WD |
316 | |
317 | return -1; | |
318 | } | |
319 | ||
ec6f1499 | 320 | int ftstc(int file) |
47d1a6e1 WD |
321 | { |
322 | if (file < MAX_FILES) | |
5f032010 | 323 | return console_tstc(file); |
47d1a6e1 WD |
324 | |
325 | return -1; | |
326 | } | |
327 | ||
ec6f1499 | 328 | void fputc(int file, const char c) |
47d1a6e1 WD |
329 | { |
330 | if (file < MAX_FILES) | |
5f032010 | 331 | console_putc(file, c); |
47d1a6e1 WD |
332 | } |
333 | ||
ec6f1499 | 334 | void fputs(int file, const char *s) |
47d1a6e1 WD |
335 | { |
336 | if (file < MAX_FILES) | |
5f032010 | 337 | console_puts(file, s); |
47d1a6e1 WD |
338 | } |
339 | ||
d9c27253 | 340 | int fprintf(int file, const char *fmt, ...) |
47d1a6e1 WD |
341 | { |
342 | va_list args; | |
343 | uint i; | |
6d0f6bcf | 344 | char printbuffer[CONFIG_SYS_PBSIZE]; |
47d1a6e1 | 345 | |
ec6f1499 | 346 | va_start(args, fmt); |
47d1a6e1 WD |
347 | |
348 | /* For this to work, printbuffer must be larger than | |
349 | * anything we ever want to print. | |
350 | */ | |
068af6f8 | 351 | i = vscnprintf(printbuffer, sizeof(printbuffer), fmt, args); |
ec6f1499 | 352 | va_end(args); |
47d1a6e1 WD |
353 | |
354 | /* Send to desired file */ | |
ec6f1499 | 355 | fputs(file, printbuffer); |
d9c27253 | 356 | return i; |
47d1a6e1 WD |
357 | } |
358 | ||
359 | /** U-Boot INITIAL CONSOLE-COMPATIBLE FUNCTION *****************************/ | |
360 | ||
ec6f1499 | 361 | int getc(void) |
47d1a6e1 | 362 | { |
f5c3ba79 MJ |
363 | #ifdef CONFIG_DISABLE_CONSOLE |
364 | if (gd->flags & GD_FLG_DISABLE_CONSOLE) | |
365 | return 0; | |
366 | #endif | |
367 | ||
e3e454cd GR |
368 | if (!gd->have_console) |
369 | return 0; | |
370 | ||
9854a874 SG |
371 | #ifdef CONFIG_CONSOLE_RECORD |
372 | if (gd->console_in.start) { | |
373 | int ch; | |
374 | ||
375 | ch = membuff_getbyte(&gd->console_in); | |
376 | if (ch != -1) | |
377 | return 1; | |
378 | } | |
379 | #endif | |
47d1a6e1 WD |
380 | if (gd->flags & GD_FLG_DEVINIT) { |
381 | /* Get from the standard input */ | |
ec6f1499 | 382 | return fgetc(stdin); |
47d1a6e1 WD |
383 | } |
384 | ||
385 | /* Send directly to the handler */ | |
ec6f1499 | 386 | return serial_getc(); |
47d1a6e1 WD |
387 | } |
388 | ||
ec6f1499 | 389 | int tstc(void) |
47d1a6e1 | 390 | { |
f5c3ba79 MJ |
391 | #ifdef CONFIG_DISABLE_CONSOLE |
392 | if (gd->flags & GD_FLG_DISABLE_CONSOLE) | |
393 | return 0; | |
394 | #endif | |
395 | ||
e3e454cd GR |
396 | if (!gd->have_console) |
397 | return 0; | |
9854a874 SG |
398 | #ifdef CONFIG_CONSOLE_RECORD |
399 | if (gd->console_in.start) { | |
400 | if (membuff_peekbyte(&gd->console_in) != -1) | |
401 | return 1; | |
402 | } | |
403 | #endif | |
47d1a6e1 WD |
404 | if (gd->flags & GD_FLG_DEVINIT) { |
405 | /* Test the standard input */ | |
ec6f1499 | 406 | return ftstc(stdin); |
47d1a6e1 WD |
407 | } |
408 | ||
409 | /* Send directly to the handler */ | |
ec6f1499 | 410 | return serial_tstc(); |
47d1a6e1 WD |
411 | } |
412 | ||
27669667 SS |
413 | #define PRE_CONSOLE_FLUSHPOINT1_SERIAL 0 |
414 | #define PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL 1 | |
415 | ||
3fa4977a | 416 | #ifdef CONFIG_PRE_CONSOLE_BUFFER |
9558b48a GR |
417 | #define CIRC_BUF_IDX(idx) ((idx) % (unsigned long)CONFIG_PRE_CON_BUF_SZ) |
418 | ||
419 | static void pre_console_putc(const char c) | |
420 | { | |
421 | char *buffer = (char *)CONFIG_PRE_CON_BUF_ADDR; | |
422 | ||
423 | buffer[CIRC_BUF_IDX(gd->precon_buf_idx++)] = c; | |
424 | } | |
425 | ||
426 | static void pre_console_puts(const char *s) | |
427 | { | |
428 | while (*s) | |
429 | pre_console_putc(*s++); | |
430 | } | |
431 | ||
27669667 | 432 | static void print_pre_console_buffer(int flushpoint) |
9558b48a | 433 | { |
a8552c7c HG |
434 | unsigned long in = 0, out = 0; |
435 | char *buf_in = (char *)CONFIG_PRE_CON_BUF_ADDR; | |
436 | char buf_out[CONFIG_PRE_CON_BUF_SZ + 1]; | |
9558b48a GR |
437 | |
438 | if (gd->precon_buf_idx > CONFIG_PRE_CON_BUF_SZ) | |
a8552c7c | 439 | in = gd->precon_buf_idx - CONFIG_PRE_CON_BUF_SZ; |
9558b48a | 440 | |
a8552c7c HG |
441 | while (in < gd->precon_buf_idx) |
442 | buf_out[out++] = buf_in[CIRC_BUF_IDX(in++)]; | |
443 | ||
444 | buf_out[out] = 0; | |
445 | ||
446 | switch (flushpoint) { | |
447 | case PRE_CONSOLE_FLUSHPOINT1_SERIAL: | |
448 | puts(buf_out); | |
449 | break; | |
450 | case PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL: | |
451 | console_puts_noserial(stdout, buf_out); | |
452 | break; | |
453 | } | |
9558b48a GR |
454 | } |
455 | #else | |
456 | static inline void pre_console_putc(const char c) {} | |
457 | static inline void pre_console_puts(const char *s) {} | |
27669667 | 458 | static inline void print_pre_console_buffer(int flushpoint) {} |
9558b48a GR |
459 | #endif |
460 | ||
ec6f1499 | 461 | void putc(const char c) |
47d1a6e1 | 462 | { |
91b136c7 | 463 | #ifdef CONFIG_SANDBOX |
da229e4e | 464 | /* sandbox can send characters to stdout before it has a console */ |
093f79ab | 465 | if (!gd || !(gd->flags & GD_FLG_SERIAL_READY)) { |
91b136c7 SG |
466 | os_putc(c); |
467 | return; | |
468 | } | |
469 | #endif | |
d6ea5307 SG |
470 | #ifdef CONFIG_DEBUG_UART |
471 | /* if we don't have a console yet, use the debug UART */ | |
472 | if (!gd || !(gd->flags & GD_FLG_SERIAL_READY)) { | |
473 | printch(c); | |
474 | return; | |
475 | } | |
476 | #endif | |
9854a874 SG |
477 | #ifdef CONFIG_CONSOLE_RECORD |
478 | if (gd && (gd->flags & GD_FLG_RECORD) && gd->console_out.start) | |
479 | membuff_putbyte(&gd->console_out, c); | |
480 | #endif | |
a6cccaea WD |
481 | #ifdef CONFIG_SILENT_CONSOLE |
482 | if (gd->flags & GD_FLG_SILENT) | |
f6e20fc6 | 483 | return; |
a6cccaea WD |
484 | #endif |
485 | ||
f5c3ba79 MJ |
486 | #ifdef CONFIG_DISABLE_CONSOLE |
487 | if (gd->flags & GD_FLG_DISABLE_CONSOLE) | |
488 | return; | |
489 | #endif | |
490 | ||
e3e454cd | 491 | if (!gd->have_console) |
9558b48a | 492 | return pre_console_putc(c); |
e3e454cd | 493 | |
47d1a6e1 WD |
494 | if (gd->flags & GD_FLG_DEVINIT) { |
495 | /* Send to the standard output */ | |
ec6f1499 | 496 | fputc(stdout, c); |
47d1a6e1 WD |
497 | } else { |
498 | /* Send directly to the handler */ | |
27669667 | 499 | pre_console_putc(c); |
ec6f1499 | 500 | serial_putc(c); |
47d1a6e1 WD |
501 | } |
502 | } | |
503 | ||
ec6f1499 | 504 | void puts(const char *s) |
47d1a6e1 | 505 | { |
91b136c7 | 506 | #ifdef CONFIG_SANDBOX |
093f79ab | 507 | if (!gd || !(gd->flags & GD_FLG_SERIAL_READY)) { |
91b136c7 SG |
508 | os_puts(s); |
509 | return; | |
510 | } | |
511 | #endif | |
d6ea5307 SG |
512 | #ifdef CONFIG_DEBUG_UART |
513 | if (!gd || !(gd->flags & GD_FLG_SERIAL_READY)) { | |
514 | while (*s) { | |
515 | int ch = *s++; | |
91b136c7 | 516 | |
d6ea5307 SG |
517 | printch(ch); |
518 | if (ch == '\n') | |
519 | printch('\r'); | |
520 | } | |
521 | return; | |
522 | } | |
523 | #endif | |
9854a874 SG |
524 | #ifdef CONFIG_CONSOLE_RECORD |
525 | if (gd && (gd->flags & GD_FLG_RECORD) && gd->console_out.start) | |
526 | membuff_put(&gd->console_out, s, strlen(s)); | |
527 | #endif | |
a6cccaea WD |
528 | #ifdef CONFIG_SILENT_CONSOLE |
529 | if (gd->flags & GD_FLG_SILENT) | |
530 | return; | |
531 | #endif | |
532 | ||
f5c3ba79 MJ |
533 | #ifdef CONFIG_DISABLE_CONSOLE |
534 | if (gd->flags & GD_FLG_DISABLE_CONSOLE) | |
535 | return; | |
536 | #endif | |
537 | ||
e3e454cd | 538 | if (!gd->have_console) |
9558b48a | 539 | return pre_console_puts(s); |
e3e454cd | 540 | |
47d1a6e1 WD |
541 | if (gd->flags & GD_FLG_DEVINIT) { |
542 | /* Send to the standard output */ | |
ec6f1499 | 543 | fputs(stdout, s); |
47d1a6e1 WD |
544 | } else { |
545 | /* Send directly to the handler */ | |
27669667 | 546 | pre_console_puts(s); |
ec6f1499 | 547 | serial_puts(s); |
47d1a6e1 WD |
548 | } |
549 | } | |
550 | ||
9854a874 SG |
551 | #ifdef CONFIG_CONSOLE_RECORD |
552 | int console_record_init(void) | |
553 | { | |
554 | int ret; | |
555 | ||
556 | ret = membuff_new(&gd->console_out, CONFIG_CONSOLE_RECORD_OUT_SIZE); | |
557 | if (ret) | |
558 | return ret; | |
559 | ret = membuff_new(&gd->console_in, CONFIG_CONSOLE_RECORD_IN_SIZE); | |
560 | ||
561 | return ret; | |
562 | } | |
563 | ||
564 | void console_record_reset(void) | |
565 | { | |
566 | membuff_purge(&gd->console_out); | |
567 | membuff_purge(&gd->console_in); | |
568 | } | |
569 | ||
570 | void console_record_reset_enable(void) | |
571 | { | |
572 | console_record_reset(); | |
573 | gd->flags |= GD_FLG_RECORD; | |
574 | } | |
575 | #endif | |
576 | ||
47d1a6e1 WD |
577 | /* test if ctrl-c was pressed */ |
578 | static int ctrlc_disabled = 0; /* see disable_ctrl() */ | |
579 | static int ctrlc_was_pressed = 0; | |
ec6f1499 | 580 | int ctrlc(void) |
47d1a6e1 | 581 | { |
8969ea3e | 582 | #ifndef CONFIG_SANDBOX |
47d1a6e1 | 583 | if (!ctrlc_disabled && gd->have_console) { |
ec6f1499 JCPV |
584 | if (tstc()) { |
585 | switch (getc()) { | |
47d1a6e1 WD |
586 | case 0x03: /* ^C - Control C */ |
587 | ctrlc_was_pressed = 1; | |
588 | return 1; | |
589 | default: | |
590 | break; | |
591 | } | |
592 | } | |
593 | } | |
8969ea3e SG |
594 | #endif |
595 | ||
47d1a6e1 WD |
596 | return 0; |
597 | } | |
a5dffa4b PA |
598 | /* Reads user's confirmation. |
599 | Returns 1 if user's input is "y", "Y", "yes" or "YES" | |
600 | */ | |
601 | int confirm_yesno(void) | |
602 | { | |
603 | int i; | |
604 | char str_input[5]; | |
605 | ||
606 | /* Flush input */ | |
607 | while (tstc()) | |
608 | getc(); | |
609 | i = 0; | |
610 | while (i < sizeof(str_input)) { | |
611 | str_input[i] = getc(); | |
612 | putc(str_input[i]); | |
613 | if (str_input[i] == '\r') | |
614 | break; | |
615 | i++; | |
616 | } | |
617 | putc('\n'); | |
618 | if (strncmp(str_input, "y\r", 2) == 0 || | |
619 | strncmp(str_input, "Y\r", 2) == 0 || | |
620 | strncmp(str_input, "yes\r", 4) == 0 || | |
621 | strncmp(str_input, "YES\r", 4) == 0) | |
622 | return 1; | |
623 | return 0; | |
624 | } | |
47d1a6e1 WD |
625 | /* pass 1 to disable ctrlc() checking, 0 to enable. |
626 | * returns previous state | |
627 | */ | |
ec6f1499 | 628 | int disable_ctrlc(int disable) |
47d1a6e1 WD |
629 | { |
630 | int prev = ctrlc_disabled; /* save previous state */ | |
631 | ||
632 | ctrlc_disabled = disable; | |
633 | return prev; | |
634 | } | |
635 | ||
636 | int had_ctrlc (void) | |
637 | { | |
638 | return ctrlc_was_pressed; | |
639 | } | |
640 | ||
ec6f1499 | 641 | void clear_ctrlc(void) |
47d1a6e1 WD |
642 | { |
643 | ctrlc_was_pressed = 0; | |
644 | } | |
645 | ||
47d1a6e1 WD |
646 | /** U-Boot INIT FUNCTIONS *************************************************/ |
647 | ||
d7be3056 | 648 | struct stdio_dev *search_device(int flags, const char *name) |
c1de7a6d | 649 | { |
52cb4d4f | 650 | struct stdio_dev *dev; |
c1de7a6d | 651 | |
52cb4d4f | 652 | dev = stdio_get_by_name(name); |
a2931b30 SG |
653 | #ifdef CONFIG_VIDCONSOLE_AS_LCD |
654 | if (!dev && !strcmp(name, "lcd")) | |
655 | dev = stdio_get_by_name("vidconsole"); | |
656 | #endif | |
c1de7a6d | 657 | |
ec6f1499 | 658 | if (dev && (dev->flags & flags)) |
c1de7a6d JCPV |
659 | return dev; |
660 | ||
661 | return NULL; | |
662 | } | |
663 | ||
d7be3056 | 664 | int console_assign(int file, const char *devname) |
47d1a6e1 | 665 | { |
c1de7a6d | 666 | int flag; |
52cb4d4f | 667 | struct stdio_dev *dev; |
47d1a6e1 WD |
668 | |
669 | /* Check for valid file */ | |
670 | switch (file) { | |
671 | case stdin: | |
672 | flag = DEV_FLAGS_INPUT; | |
673 | break; | |
674 | case stdout: | |
675 | case stderr: | |
676 | flag = DEV_FLAGS_OUTPUT; | |
677 | break; | |
678 | default: | |
679 | return -1; | |
680 | } | |
681 | ||
682 | /* Check for valid device name */ | |
683 | ||
c1de7a6d | 684 | dev = search_device(flag, devname); |
47d1a6e1 | 685 | |
ec6f1499 JCPV |
686 | if (dev) |
687 | return console_setfile(file, dev); | |
47d1a6e1 WD |
688 | |
689 | return -1; | |
690 | } | |
691 | ||
692 | /* Called before relocation - use serial functions */ | |
ec6f1499 | 693 | int console_init_f(void) |
47d1a6e1 | 694 | { |
47d1a6e1 | 695 | gd->have_console = 1; |
f72da340 WD |
696 | |
697 | #ifdef CONFIG_SILENT_CONSOLE | |
698 | if (getenv("silent") != NULL) | |
699 | gd->flags |= GD_FLG_SILENT; | |
700 | #endif | |
701 | ||
27669667 | 702 | print_pre_console_buffer(PRE_CONSOLE_FLUSHPOINT1_SERIAL); |
9558b48a | 703 | |
ec6f1499 | 704 | return 0; |
47d1a6e1 WD |
705 | } |
706 | ||
7e3be7cf JCPV |
707 | void stdio_print_current_devices(void) |
708 | { | |
7e3be7cf JCPV |
709 | /* Print information */ |
710 | puts("In: "); | |
711 | if (stdio_devices[stdin] == NULL) { | |
712 | puts("No input devices available!\n"); | |
713 | } else { | |
714 | printf ("%s\n", stdio_devices[stdin]->name); | |
715 | } | |
716 | ||
717 | puts("Out: "); | |
718 | if (stdio_devices[stdout] == NULL) { | |
719 | puts("No output devices available!\n"); | |
720 | } else { | |
721 | printf ("%s\n", stdio_devices[stdout]->name); | |
722 | } | |
723 | ||
724 | puts("Err: "); | |
725 | if (stdio_devices[stderr] == NULL) { | |
726 | puts("No error devices available!\n"); | |
727 | } else { | |
728 | printf ("%s\n", stdio_devices[stderr]->name); | |
729 | } | |
7e3be7cf JCPV |
730 | } |
731 | ||
6d0f6bcf | 732 | #ifdef CONFIG_SYS_CONSOLE_IS_IN_ENV |
47d1a6e1 | 733 | /* Called after the relocation - use desired console functions */ |
ec6f1499 | 734 | int console_init_r(void) |
47d1a6e1 WD |
735 | { |
736 | char *stdinname, *stdoutname, *stderrname; | |
52cb4d4f | 737 | struct stdio_dev *inputdev = NULL, *outputdev = NULL, *errdev = NULL; |
6d0f6bcf | 738 | #ifdef CONFIG_SYS_CONSOLE_ENV_OVERWRITE |
6e592385 | 739 | int i; |
6d0f6bcf | 740 | #endif /* CONFIG_SYS_CONSOLE_ENV_OVERWRITE */ |
16a28ef2 GJ |
741 | #ifdef CONFIG_CONSOLE_MUX |
742 | int iomux_err = 0; | |
743 | #endif | |
47d1a6e1 WD |
744 | |
745 | /* set default handlers at first */ | |
49cad547 MD |
746 | gd->jt->getc = serial_getc; |
747 | gd->jt->tstc = serial_tstc; | |
748 | gd->jt->putc = serial_putc; | |
749 | gd->jt->puts = serial_puts; | |
750 | gd->jt->printf = serial_printf; | |
47d1a6e1 WD |
751 | |
752 | /* stdin stdout and stderr are in environment */ | |
753 | /* scan for it */ | |
ec6f1499 JCPV |
754 | stdinname = getenv("stdin"); |
755 | stdoutname = getenv("stdout"); | |
756 | stderrname = getenv("stderr"); | |
47d1a6e1 | 757 | |
53677ef1 | 758 | if (OVERWRITE_CONSOLE == 0) { /* if not overwritten by config switch */ |
ec6f1499 JCPV |
759 | inputdev = search_device(DEV_FLAGS_INPUT, stdinname); |
760 | outputdev = search_device(DEV_FLAGS_OUTPUT, stdoutname); | |
761 | errdev = search_device(DEV_FLAGS_OUTPUT, stderrname); | |
16a28ef2 GJ |
762 | #ifdef CONFIG_CONSOLE_MUX |
763 | iomux_err = iomux_doenv(stdin, stdinname); | |
764 | iomux_err += iomux_doenv(stdout, stdoutname); | |
765 | iomux_err += iomux_doenv(stderr, stderrname); | |
766 | if (!iomux_err) | |
767 | /* Successful, so skip all the code below. */ | |
768 | goto done; | |
769 | #endif | |
47d1a6e1 WD |
770 | } |
771 | /* if the devices are overwritten or not found, use default device */ | |
772 | if (inputdev == NULL) { | |
ec6f1499 | 773 | inputdev = search_device(DEV_FLAGS_INPUT, "serial"); |
47d1a6e1 WD |
774 | } |
775 | if (outputdev == NULL) { | |
ec6f1499 | 776 | outputdev = search_device(DEV_FLAGS_OUTPUT, "serial"); |
47d1a6e1 WD |
777 | } |
778 | if (errdev == NULL) { | |
ec6f1499 | 779 | errdev = search_device(DEV_FLAGS_OUTPUT, "serial"); |
47d1a6e1 WD |
780 | } |
781 | /* Initializes output console first */ | |
782 | if (outputdev != NULL) { | |
16a28ef2 | 783 | /* need to set a console if not done above. */ |
5f032010 | 784 | console_doenv(stdout, outputdev); |
47d1a6e1 WD |
785 | } |
786 | if (errdev != NULL) { | |
16a28ef2 | 787 | /* need to set a console if not done above. */ |
5f032010 | 788 | console_doenv(stderr, errdev); |
47d1a6e1 WD |
789 | } |
790 | if (inputdev != NULL) { | |
16a28ef2 | 791 | /* need to set a console if not done above. */ |
5f032010 | 792 | console_doenv(stdin, inputdev); |
47d1a6e1 WD |
793 | } |
794 | ||
16a28ef2 GJ |
795 | #ifdef CONFIG_CONSOLE_MUX |
796 | done: | |
797 | #endif | |
798 | ||
78c112c9 | 799 | #ifndef CONFIG_SYS_CONSOLE_INFO_QUIET |
7e3be7cf | 800 | stdio_print_current_devices(); |
78c112c9 | 801 | #endif /* CONFIG_SYS_CONSOLE_INFO_QUIET */ |
a2931b30 SG |
802 | #ifdef CONFIG_VIDCONSOLE_AS_LCD |
803 | if (strstr(stdoutname, "lcd")) | |
804 | printf("Warning: Please change 'lcd' to 'vidconsole' in stdout/stderr environment vars\n"); | |
805 | #endif | |
47d1a6e1 | 806 | |
6d0f6bcf | 807 | #ifdef CONFIG_SYS_CONSOLE_ENV_OVERWRITE |
47d1a6e1 WD |
808 | /* set the environment variables (will overwrite previous env settings) */ |
809 | for (i = 0; i < 3; i++) { | |
ec6f1499 | 810 | setenv(stdio_names[i], stdio_devices[i]->name); |
47d1a6e1 | 811 | } |
6d0f6bcf | 812 | #endif /* CONFIG_SYS_CONSOLE_ENV_OVERWRITE */ |
47d1a6e1 | 813 | |
c4e0057f JH |
814 | gd->flags |= GD_FLG_DEVINIT; /* device initialization completed */ |
815 | ||
47d1a6e1 WD |
816 | #if 0 |
817 | /* If nothing usable installed, use only the initial console */ | |
818 | if ((stdio_devices[stdin] == NULL) && (stdio_devices[stdout] == NULL)) | |
ec6f1499 | 819 | return 0; |
47d1a6e1 | 820 | #endif |
27669667 | 821 | print_pre_console_buffer(PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL); |
ec6f1499 | 822 | return 0; |
47d1a6e1 WD |
823 | } |
824 | ||
6d0f6bcf | 825 | #else /* CONFIG_SYS_CONSOLE_IS_IN_ENV */ |
47d1a6e1 WD |
826 | |
827 | /* Called after the relocation - use desired console functions */ | |
ec6f1499 | 828 | int console_init_r(void) |
47d1a6e1 | 829 | { |
52cb4d4f | 830 | struct stdio_dev *inputdev = NULL, *outputdev = NULL; |
c1de7a6d | 831 | int i; |
52cb4d4f | 832 | struct list_head *list = stdio_get_list(); |
c1de7a6d | 833 | struct list_head *pos; |
52cb4d4f | 834 | struct stdio_dev *dev; |
47d1a6e1 | 835 | |
d791b1dc | 836 | #ifdef CONFIG_SPLASH_SCREEN |
ec6f1499 JCPV |
837 | /* |
838 | * suppress all output if splash screen is enabled and we have | |
a7490816 AG |
839 | * a bmp to display. We redirect the output from frame buffer |
840 | * console to serial console in this case or suppress it if | |
841 | * "silent" mode was requested. | |
ec6f1499 | 842 | */ |
a7490816 AG |
843 | if (getenv("splashimage") != NULL) { |
844 | if (!(gd->flags & GD_FLG_SILENT)) | |
845 | outputdev = search_device (DEV_FLAGS_OUTPUT, "serial"); | |
846 | } | |
f72da340 WD |
847 | #endif |
848 | ||
47d1a6e1 | 849 | /* Scan devices looking for input and output devices */ |
c1de7a6d | 850 | list_for_each(pos, list) { |
52cb4d4f | 851 | dev = list_entry(pos, struct stdio_dev, list); |
47d1a6e1 WD |
852 | |
853 | if ((dev->flags & DEV_FLAGS_INPUT) && (inputdev == NULL)) { | |
854 | inputdev = dev; | |
855 | } | |
856 | if ((dev->flags & DEV_FLAGS_OUTPUT) && (outputdev == NULL)) { | |
857 | outputdev = dev; | |
858 | } | |
c1de7a6d JCPV |
859 | if(inputdev && outputdev) |
860 | break; | |
47d1a6e1 WD |
861 | } |
862 | ||
863 | /* Initializes output console first */ | |
864 | if (outputdev != NULL) { | |
ec6f1499 JCPV |
865 | console_setfile(stdout, outputdev); |
866 | console_setfile(stderr, outputdev); | |
16a28ef2 GJ |
867 | #ifdef CONFIG_CONSOLE_MUX |
868 | console_devices[stdout][0] = outputdev; | |
869 | console_devices[stderr][0] = outputdev; | |
870 | #endif | |
47d1a6e1 WD |
871 | } |
872 | ||
873 | /* Initializes input console */ | |
874 | if (inputdev != NULL) { | |
ec6f1499 | 875 | console_setfile(stdin, inputdev); |
16a28ef2 GJ |
876 | #ifdef CONFIG_CONSOLE_MUX |
877 | console_devices[stdin][0] = inputdev; | |
878 | #endif | |
47d1a6e1 WD |
879 | } |
880 | ||
78c112c9 | 881 | #ifndef CONFIG_SYS_CONSOLE_INFO_QUIET |
7e3be7cf | 882 | stdio_print_current_devices(); |
78c112c9 | 883 | #endif /* CONFIG_SYS_CONSOLE_INFO_QUIET */ |
47d1a6e1 WD |
884 | |
885 | /* Setting environment variables */ | |
886 | for (i = 0; i < 3; i++) { | |
ec6f1499 | 887 | setenv(stdio_names[i], stdio_devices[i]->name); |
47d1a6e1 WD |
888 | } |
889 | ||
c4e0057f JH |
890 | gd->flags |= GD_FLG_DEVINIT; /* device initialization completed */ |
891 | ||
47d1a6e1 WD |
892 | #if 0 |
893 | /* If nothing usable installed, use only the initial console */ | |
894 | if ((stdio_devices[stdin] == NULL) && (stdio_devices[stdout] == NULL)) | |
ec6f1499 | 895 | return 0; |
47d1a6e1 | 896 | #endif |
27669667 | 897 | print_pre_console_buffer(PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL); |
ec6f1499 | 898 | return 0; |
47d1a6e1 WD |
899 | } |
900 | ||
6d0f6bcf | 901 | #endif /* CONFIG_SYS_CONSOLE_IS_IN_ENV */ |