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 + c
->ncomb
];
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
; i
++)
89 str
[j
++] = c
->combining
[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
, 0, 0, '\e'
112 grub_console_getkey (struct grub_term_input
*term
__attribute__ ((unused
)))
114 grub_efi_simple_input_interface_t
*i
;
115 grub_efi_input_key_t key
;
116 grub_efi_status_t status
;
118 if (grub_efi_is_finished
)
121 i
= grub_efi_system_table
->con_in
;
122 status
= efi_call_2 (i
->read_key_stroke
, i
, &key
);
124 if (status
!= GRUB_EFI_SUCCESS
)
125 return GRUB_TERM_NO_KEY
;
127 if (key
.scan_code
== 0)
128 return key
.unicode_char
;
129 else if (key
.scan_code
< ARRAY_SIZE (efi_codes
))
130 return efi_codes
[key
.scan_code
];
132 return GRUB_TERM_NO_KEY
;
136 grub_console_getwh (struct grub_term_output
*term
__attribute__ ((unused
)))
138 grub_efi_simple_text_output_interface_t
*o
;
139 grub_efi_uintn_t columns
, rows
;
141 o
= grub_efi_system_table
->con_out
;
142 if (grub_efi_is_finished
|| efi_call_4 (o
->query_mode
, o
, o
->mode
->mode
,
143 &columns
, &rows
) != GRUB_EFI_SUCCESS
)
145 /* Why does this fail? */
150 return ((columns
<< 8) | rows
);
154 grub_console_getxy (struct grub_term_output
*term
__attribute__ ((unused
)))
156 grub_efi_simple_text_output_interface_t
*o
;
158 if (grub_efi_is_finished
)
161 o
= grub_efi_system_table
->con_out
;
162 return ((o
->mode
->cursor_column
<< 8) | o
->mode
->cursor_row
);
166 grub_console_gotoxy (struct grub_term_output
*term
__attribute__ ((unused
)),
167 grub_uint8_t x
, grub_uint8_t y
)
169 grub_efi_simple_text_output_interface_t
*o
;
171 if (grub_efi_is_finished
)
174 o
= grub_efi_system_table
->con_out
;
175 efi_call_3 (o
->set_cursor_position
, o
, x
, y
);
179 grub_console_cls (struct grub_term_output
*term
__attribute__ ((unused
)))
181 grub_efi_simple_text_output_interface_t
*o
;
182 grub_efi_int32_t orig_attr
;
184 if (grub_efi_is_finished
)
187 o
= grub_efi_system_table
->con_out
;
188 orig_attr
= o
->mode
->attribute
;
189 efi_call_2 (o
->set_attributes
, o
, GRUB_EFI_BACKGROUND_BLACK
);
190 efi_call_1 (o
->clear_screen
, o
);
191 efi_call_2 (o
->set_attributes
, o
, orig_attr
);
195 grub_console_setcolorstate (struct grub_term_output
*term
,
196 grub_term_color_state state
)
198 grub_efi_simple_text_output_interface_t
*o
;
200 if (grub_efi_is_finished
)
203 o
= grub_efi_system_table
->con_out
;
206 case GRUB_TERM_COLOR_STANDARD
:
207 efi_call_2 (o
->set_attributes
, o
, GRUB_TERM_DEFAULT_STANDARD_COLOR
210 case GRUB_TERM_COLOR_NORMAL
:
211 efi_call_2 (o
->set_attributes
, o
, term
->normal_color
& 0x7f);
213 case GRUB_TERM_COLOR_HIGHLIGHT
:
214 efi_call_2 (o
->set_attributes
, o
, term
->highlight_color
& 0x7f);
222 grub_console_setcursor (struct grub_term_output
*term
__attribute__ ((unused
)),
225 grub_efi_simple_text_output_interface_t
*o
;
227 if (grub_efi_is_finished
)
230 o
= grub_efi_system_table
->con_out
;
231 efi_call_2 (o
->enable_cursor
, o
, on
);
235 grub_efi_console_init (struct grub_term_output
*term
)
237 grub_efi_set_text_mode (1);
238 grub_console_setcursor (term
, 1);
243 grub_efi_console_fini (struct grub_term_output
*term
)
245 grub_console_setcursor (term
, 0);
246 grub_efi_set_text_mode (0);
250 static struct grub_term_input grub_console_term_input
=
253 .getkey
= grub_console_getkey
,
256 static struct grub_term_output grub_console_term_output
=
259 .init
= grub_efi_console_init
,
260 .fini
= grub_efi_console_fini
,
261 .putchar
= grub_console_putchar
,
262 .getwh
= grub_console_getwh
,
263 .getxy
= grub_console_getxy
,
264 .gotoxy
= grub_console_gotoxy
,
265 .cls
= grub_console_cls
,
266 .setcolorstate
= grub_console_setcolorstate
,
267 .setcursor
= grub_console_setcursor
,
268 .normal_color
= GRUB_TERM_DEFAULT_NORMAL_COLOR
,
269 .highlight_color
= GRUB_TERM_DEFAULT_HIGHLIGHT_COLOR
,
270 .flags
= GRUB_TERM_CODE_TYPE_VISUAL_GLYPHS
274 grub_console_init (void)
276 /* FIXME: it is necessary to consider the case where no console control
277 is present but the default is already in text mode. */
278 if (! grub_efi_set_text_mode (1))
280 grub_error (GRUB_ERR_BAD_DEVICE
, "cannot set text mode");
284 grub_term_register_input ("console", &grub_console_term_input
);
285 grub_term_register_output ("console", &grub_console_term_output
);
289 grub_console_fini (void)
291 grub_term_unregister_input (&grub_console_term_input
);
292 grub_term_unregister_output (&grub_console_term_output
);