2 * Copyright (c) 2000 Doug Rabson
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
33 #include "bootstrap.h"
35 static SIMPLE_TEXT_OUTPUT_INTERFACE *conout;
36 static SIMPLE_INPUT_INTERFACE *conin;
39 #define DEFAULT_FGCOLOR EFI_LIGHTGRAY
40 #define DEFAULT_BGCOLOR EFI_BLACK
43 static int args[MAXARGS], argc;
44 static int fg_c, bg_c, curx, cury;
47 void get_pos(int *x, int *y);
48 void curs_move(int *_x, int *_y, int x, int y);
54 static EFI_INPUT_KEY key_cur;
55 static int key_pending;
57 static void efi_cons_probe(struct console *);
58 static int efi_cons_init(int);
59 void efi_cons_putchar(int);
60 int efi_cons_getchar(void);
61 void efi_cons_efiputchar(int);
62 int efi_cons_poll(void);
64 struct console efi_console = {
77 /* Get cursor position. */
79 get_pos(int *x, int *y)
81 *x = conout->Mode->CursorColumn;
82 *y = conout->Mode->CursorRow;
85 /* Move cursor to x rows and y cols (0-based). */
87 curs_move(int *_x, int *_y, int x, int y)
89 conout->SetCursorPosition(conout, x, y);
91 *_x = conout->Mode->CursorColumn;
93 *_y = conout->Mode->CursorRow;
96 /* Clear internal state of the terminal emulation code. */
107 efi_cons_probe(struct console *cp)
111 cp->c_flags |= C_PRESENTIN | C_PRESENTOUT;
115 efi_cons_init(int arg)
118 conout->SetAttribute(conout, EFI_TEXT_ATTR(DEFAULT_FGCOLOR,
121 get_pos(&curx, &cury);
122 curs_move(&curx, &cury, curx, cury);
123 fg_c = DEFAULT_FGCOLOR;
124 bg_c = DEFAULT_BGCOLOR;
126 conout->EnableCursor(conout, TRUE);
131 efi_cons_rawputchar(int c)
135 conout->QueryMode(conout, conout->Mode->Mode, &x, &y);
138 /* XXX lame tab expansion */
139 for (i = 0; i < 8; i++)
140 efi_cons_rawputchar(' ');
144 efi_cons_efiputchar('\r');
145 efi_cons_efiputchar(c);
150 curs_move(&curx, &cury, curx, cury);
155 efi_cons_efiputchar('\n');
158 curs_move(&curx, &cury, curx, cury);
163 curs_move(&curx, &cury, curx, cury);
167 efi_cons_efiputchar(c);
178 curs_move(&curx, &cury, curx, cury);
184 /* Gracefully exit ESC-sequence processing in case of misunderstanding. */
192 efi_cons_rawputchar('\033');
194 efi_cons_rawputchar(esc);
195 for (i = 0; i <= argc; ++i) {
196 sprintf(buf, "%d", args[i]);
199 efi_cons_rawputchar(*ch++);
202 efi_cons_rawputchar(c);
206 /* Clear display from current position to end of screen. */
212 get_pos(&curx, &cury);
213 if (curx == 0 && cury == 0) {
214 conout->ClearScreen(conout);
219 conout->QueryMode(conout, conout->Mode->Mode, &x, &y);
220 CL(0); /* clear current line from cursor to end */
221 for (i = cury + 1; i < y-1; i++) {
222 curs_move(NULL, NULL, 0, i);
225 curs_move(NULL, NULL, curx, cury);
230 * Absolute cursor move to args[0] rows and args[1] columns
231 * (the coordinates are 1-based).
240 curs_move(&curx, &cury, args[1], args[0]);
244 /* Home cursor (left top corner), also called from mode command. */
249 args[0] = args[1] = 1;
253 /* Clear line from current position to end of line */
261 conout->QueryMode(conout, conout->Mode->Mode, &x, &y);
263 case 0: /* from cursor to end */
266 case 1: /* from beginning to cursor */
269 case 2: /* entire line */
272 default: /* NOTREACHED */
279 line = malloc(len * sizeof (CHAR16));
281 printf("out of memory\n");
284 for (i = 0; i < len; i++)
289 curs_move(NULL, NULL, 0, cury);
291 conout->OutputString(conout, line);
292 /* restore cursor position */
293 curs_move(NULL, NULL, curx, cury);
304 args[argc] += c - '0';
307 /* Emulate basic capabilities of cons25 terminal */
311 static int ansi_col[] = {
312 0, 4, 2, 6, 1, 5, 3, 7
323 efi_cons_rawputchar(c);
344 else if (argc + 1 >= MAXARGS)
349 case 'H': /* ho = \E[H */
357 case 'J': /* cd = \E[J */
365 fg_c = DEFAULT_FGCOLOR;
366 bg_c = DEFAULT_BGCOLOR;
368 for (i = 0; i <= argc; ++i) {
370 case 0: /* back to normal */
371 fg_c = DEFAULT_FGCOLOR;
372 bg_c = DEFAULT_BGCOLOR;
377 case 4: /* underline */
381 case 7: /* reverse */
386 case 30: case 31: case 32: case 33:
387 case 34: case 35: case 36: case 37:
388 fg_c = ansi_col[args[i] - 30];
390 case 39: /* normal */
391 fg_c = DEFAULT_FGCOLOR;
393 case 40: case 41: case 42: case 43:
394 case 44: case 45: case 46: case 47:
395 bg_c = ansi_col[args[i] - 40];
397 case 49: /* normal */
398 bg_c = DEFAULT_BGCOLOR;
402 conout->SetAttribute(conout, EFI_TEXT_ATTR(fg_c, bg_c));
426 efi_cons_putchar(int c)
431 efi_cons_rawputchar(c);
446 /* Try to read a key stroke. We wait for one if none is pending. */
447 status = conin->ReadKeyStroke(conin, &key);
448 while (status == EFI_NOT_READY) {
449 /* Some EFI implementation (u-boot for example) do not support WaitForKey */
450 if (conin->WaitForKey != NULL)
451 BS->WaitForEvent(1, &conin->WaitForKey, &junk);
452 status = conin->ReadKeyStroke(conin, &key);
456 switch (key.ScanCode) {
458 return (0x1b); /* esc */
461 /* this can return */
462 return (key.UnicodeChar);
471 if (conin->WaitForKey == NULL) {
474 status = conin->ReadKeyStroke(conin, &key);
475 if (status == EFI_SUCCESS) {
479 return (key_pending);
482 /* This can clear the signaled state. */
483 return (BS->CheckEvent(conin->WaitForKey) == EFI_SUCCESS);
486 /* Plain direct access to EFI OutputString(). */
488 efi_cons_efiputchar(int c)
493 * translate box chars to unicode
497 case 0xb3: buf[0] = BOXDRAW_VERTICAL; break;
498 case 0xbf: buf[0] = BOXDRAW_DOWN_LEFT; break;
499 case 0xc0: buf[0] = BOXDRAW_UP_RIGHT; break;
500 case 0xc4: buf[0] = BOXDRAW_HORIZONTAL; break;
501 case 0xda: buf[0] = BOXDRAW_DOWN_RIGHT; break;
502 case 0xd9: buf[0] = BOXDRAW_UP_LEFT; break;
505 case 0xba: buf[0] = BOXDRAW_DOUBLE_VERTICAL; break;
506 case 0xbb: buf[0] = BOXDRAW_DOUBLE_DOWN_LEFT; break;
507 case 0xbc: buf[0] = BOXDRAW_DOUBLE_UP_LEFT; break;
508 case 0xc8: buf[0] = BOXDRAW_DOUBLE_UP_RIGHT; break;
509 case 0xc9: buf[0] = BOXDRAW_DOUBLE_DOWN_RIGHT; break;
510 case 0xcd: buf[0] = BOXDRAW_DOUBLE_HORIZONTAL; break;
515 buf[1] = 0; /* terminate string */
517 conout->OutputString(conout, buf);