2 * GRUB -- GRand Unified Bootloader
3 * Copyright (C) 2006,2007,2008 Free Software Foundation, Inc.
5 * GRUB is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, either version 3 of the License, or
8 * (at your option) any later version.
10 * GRUB is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with GRUB. If not, see <http://www.gnu.org/licenses/>.
19 #include <grub/term.h>
20 #include <grub/misc.h>
21 #include <grub/types.h>
23 #include <grub/efi/efi.h>
24 #include <grub/efi/api.h>
25 #include <grub/efi/console.h>
28 map_char (grub_uint32_t c)
30 /* Map some unicode characters to the EFI character. */
33 case GRUB_UNICODE_LEFTARROW:
34 c = GRUB_UNICODE_BLACK_LEFT_TRIANGLE;
36 case GRUB_UNICODE_UPARROW:
37 c = GRUB_UNICODE_BLACK_UP_TRIANGLE;
39 case GRUB_UNICODE_RIGHTARROW:
40 c = GRUB_UNICODE_BLACK_RIGHT_TRIANGLE;
42 case GRUB_UNICODE_DOWNARROW:
43 c = GRUB_UNICODE_BLACK_DOWN_TRIANGLE;
45 case GRUB_UNICODE_HLINE:
46 c = GRUB_UNICODE_LIGHT_HLINE;
48 case GRUB_UNICODE_VLINE:
49 c = GRUB_UNICODE_LIGHT_VLINE;
51 case GRUB_UNICODE_CORNER_UL:
52 c = GRUB_UNICODE_LIGHT_CORNER_UL;
54 case GRUB_UNICODE_CORNER_UR:
55 c = GRUB_UNICODE_LIGHT_CORNER_UR;
57 case GRUB_UNICODE_CORNER_LL:
58 c = GRUB_UNICODE_LIGHT_CORNER_LL;
60 case GRUB_UNICODE_CORNER_LR:
61 c = GRUB_UNICODE_LIGHT_CORNER_LR;
69 grub_console_putchar (struct grub_term_output *term __attribute__ ((unused)),
70 const struct grub_unicode_glyph *c)
72 grub_efi_char16_t str[2 + 30];
73 grub_efi_simple_text_output_interface_t *o;
76 if (grub_efi_is_finished)
79 o = grub_efi_system_table->con_out;
81 /* For now, do not try to use a surrogate pair. */
85 str[0] = (grub_efi_char16_t) map_char (c->base & 0xffff);
87 for (i = 0; i < c->ncomb && j + 1 < ARRAY_SIZE (str); i++)
89 str[j++] = grub_unicode_get_comb (c)[i].code;
92 /* Should this test be cached? */
93 if ((c->base > 0x7f || c->ncomb)
94 && efi_call_2 (o->test_string, o, str) != GRUB_EFI_SUCCESS)
97 efi_call_2 (o->output_string, o, str);
100 const unsigned efi_codes[] =
102 0, GRUB_TERM_KEY_UP, GRUB_TERM_KEY_DOWN, GRUB_TERM_KEY_RIGHT,
103 GRUB_TERM_KEY_LEFT, GRUB_TERM_KEY_HOME, GRUB_TERM_KEY_END, GRUB_TERM_KEY_INSERT,
104 GRUB_TERM_KEY_DC, GRUB_TERM_KEY_PPAGE, GRUB_TERM_KEY_NPAGE, GRUB_TERM_KEY_F1,
105 GRUB_TERM_KEY_F2, GRUB_TERM_KEY_F3, GRUB_TERM_KEY_F4, GRUB_TERM_KEY_F5,
106 GRUB_TERM_KEY_F6, GRUB_TERM_KEY_F7, GRUB_TERM_KEY_F8, GRUB_TERM_KEY_F9,
107 GRUB_TERM_KEY_F10, GRUB_TERM_KEY_F11, GRUB_TERM_KEY_F12, '\e'
111 grub_efi_translate_key (grub_efi_input_key_t key)
113 if (key.scan_code == 0)
115 /* Some firmware implementations use VT100-style codes against the spec.
116 This is especially likely if driven by serial.
118 if (key.unicode_char < 0x20 && key.unicode_char != 0
119 && key.unicode_char != '\t' && key.unicode_char != '\b'
120 && key.unicode_char != '\n' && key.unicode_char != '\r')
121 return GRUB_TERM_CTRL | (key.unicode_char - 1 + 'a');
123 return key.unicode_char;
125 else if (key.scan_code < ARRAY_SIZE (efi_codes))
126 return efi_codes[key.scan_code];
128 if ((key.unicode_char >= 0x20 && key.unicode_char <= 0x7f)
129 || key.unicode_char == '\t' || key.unicode_char == '\b'
130 || key.unicode_char == '\n' || key.unicode_char == '\r')
131 return key.unicode_char;
133 return GRUB_TERM_NO_KEY;
137 grub_console_getkey_con (struct grub_term_input *term __attribute__ ((unused)))
139 grub_efi_simple_input_interface_t *i;
140 grub_efi_input_key_t key;
141 grub_efi_status_t status;
143 i = grub_efi_system_table->con_in;
144 status = efi_call_2 (i->read_key_stroke, i, &key);
146 if (status != GRUB_EFI_SUCCESS)
147 return GRUB_TERM_NO_KEY;
149 return grub_efi_translate_key(key);
153 grub_console_getkey_ex(struct grub_term_input *term)
155 grub_efi_key_data_t key_data;
156 grub_efi_status_t status;
157 grub_efi_uint32_t kss;
160 grub_efi_simple_text_input_ex_interface_t *text_input = term->data;
162 status = efi_call_2 (text_input->read_key_stroke, text_input, &key_data);
164 if (status != GRUB_EFI_SUCCESS)
165 return GRUB_TERM_NO_KEY;
167 kss = key_data.key_state.key_shift_state;
168 key = grub_efi_translate_key(key_data.key);
170 if (key == GRUB_TERM_NO_KEY)
171 return GRUB_TERM_NO_KEY;
173 if (kss & GRUB_EFI_SHIFT_STATE_VALID)
175 if ((kss & GRUB_EFI_LEFT_SHIFT_PRESSED
176 || kss & GRUB_EFI_RIGHT_SHIFT_PRESSED)
177 && (key & GRUB_TERM_EXTENDED))
178 key |= GRUB_TERM_SHIFT;
179 if (kss & GRUB_EFI_LEFT_ALT_PRESSED || kss & GRUB_EFI_RIGHT_ALT_PRESSED)
180 key |= GRUB_TERM_ALT;
181 if (kss & GRUB_EFI_LEFT_CONTROL_PRESSED
182 || kss & GRUB_EFI_RIGHT_CONTROL_PRESSED)
183 key |= GRUB_TERM_CTRL;
190 grub_efi_console_input_init (struct grub_term_input *term)
192 grub_efi_guid_t text_input_ex_guid =
193 GRUB_EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL_GUID;
195 if (grub_efi_is_finished)
198 grub_efi_simple_text_input_ex_interface_t *text_input = term->data;
202 text_input = grub_efi_open_protocol(grub_efi_system_table->console_in_handler,
204 GRUB_EFI_OPEN_PROTOCOL_GET_PROTOCOL);
205 term->data = (void *)text_input;
211 grub_console_getkey (struct grub_term_input *term)
213 if (grub_efi_is_finished)
217 return grub_console_getkey_ex(term);
219 return grub_console_getkey_con(term);
222 static struct grub_term_coordinate
223 grub_console_getwh (struct grub_term_output *term __attribute__ ((unused)))
225 grub_efi_simple_text_output_interface_t *o;
226 grub_efi_uintn_t columns, rows;
228 o = grub_efi_system_table->con_out;
229 if (grub_efi_is_finished || efi_call_4 (o->query_mode, o, o->mode->mode,
230 &columns, &rows) != GRUB_EFI_SUCCESS)
232 /* Why does this fail? */
237 return (struct grub_term_coordinate) { columns, rows };
240 static struct grub_term_coordinate
241 grub_console_getxy (struct grub_term_output *term __attribute__ ((unused)))
243 grub_efi_simple_text_output_interface_t *o;
245 if (grub_efi_is_finished)
246 return (struct grub_term_coordinate) { 0, 0 };
248 o = grub_efi_system_table->con_out;
249 return (struct grub_term_coordinate) { o->mode->cursor_column, o->mode->cursor_row };
253 grub_console_gotoxy (struct grub_term_output *term __attribute__ ((unused)),
254 struct grub_term_coordinate pos)
256 grub_efi_simple_text_output_interface_t *o;
258 if (grub_efi_is_finished)
261 o = grub_efi_system_table->con_out;
262 efi_call_3 (o->set_cursor_position, o, pos.x, pos.y);
266 grub_console_cls (struct grub_term_output *term __attribute__ ((unused)))
268 grub_efi_simple_text_output_interface_t *o;
269 grub_efi_int32_t orig_attr;
271 if (grub_efi_is_finished)
274 o = grub_efi_system_table->con_out;
275 orig_attr = o->mode->attribute;
276 efi_call_2 (o->set_attributes, o, GRUB_EFI_BACKGROUND_BLACK);
277 efi_call_1 (o->clear_screen, o);
278 efi_call_2 (o->set_attributes, o, orig_attr);
282 grub_console_setcolorstate (struct grub_term_output *term
283 __attribute__ ((unused)),
284 grub_term_color_state state)
286 grub_efi_simple_text_output_interface_t *o;
288 if (grub_efi_is_finished)
291 o = grub_efi_system_table->con_out;
294 case GRUB_TERM_COLOR_STANDARD:
295 efi_call_2 (o->set_attributes, o, GRUB_TERM_DEFAULT_STANDARD_COLOR
298 case GRUB_TERM_COLOR_NORMAL:
299 efi_call_2 (o->set_attributes, o, grub_term_normal_color & 0x7f);
301 case GRUB_TERM_COLOR_HIGHLIGHT:
302 efi_call_2 (o->set_attributes, o, grub_term_highlight_color & 0x7f);
310 grub_console_setcursor (struct grub_term_output *term __attribute__ ((unused)),
313 grub_efi_simple_text_output_interface_t *o;
315 if (grub_efi_is_finished)
318 o = grub_efi_system_table->con_out;
319 efi_call_2 (o->enable_cursor, o, on);
323 grub_efi_console_output_init (struct grub_term_output *term)
325 grub_efi_set_text_mode (1);
326 grub_console_setcursor (term, 1);
331 grub_efi_console_output_fini (struct grub_term_output *term)
333 grub_console_setcursor (term, 0);
334 grub_efi_set_text_mode (0);
338 static struct grub_term_input grub_console_term_input =
341 .getkey = grub_console_getkey,
342 .init = grub_efi_console_input_init,
345 static struct grub_term_output grub_console_term_output =
348 .init = grub_efi_console_output_init,
349 .fini = grub_efi_console_output_fini,
350 .putchar = grub_console_putchar,
351 .getwh = grub_console_getwh,
352 .getxy = grub_console_getxy,
353 .gotoxy = grub_console_gotoxy,
354 .cls = grub_console_cls,
355 .setcolorstate = grub_console_setcolorstate,
356 .setcursor = grub_console_setcursor,
357 .flags = GRUB_TERM_CODE_TYPE_VISUAL_GLYPHS,
358 .progress_update_divisor = GRUB_PROGRESS_FAST
362 grub_console_init (void)
364 /* FIXME: it is necessary to consider the case where no console control
365 is present but the default is already in text mode. */
366 if (! grub_efi_set_text_mode (1))
368 grub_error (GRUB_ERR_BAD_DEVICE, "cannot set text mode");
372 grub_term_register_output ("console", &grub_console_term_output);
373 grub_term_register_input ("console", &grub_console_term_input);
377 grub_console_fini (void)
379 grub_term_unregister_input (&grub_console_term_input);
380 grub_term_unregister_output (&grub_console_term_output);