diff options
Diffstat (limited to 'grub-core/commands/keylayouts.c')
| -rw-r--r-- | grub-core/commands/keylayouts.c | 307 |
1 files changed, 307 insertions, 0 deletions
diff --git a/grub-core/commands/keylayouts.c b/grub-core/commands/keylayouts.c new file mode 100644 index 0000000..c05d612 --- /dev/null +++ b/grub-core/commands/keylayouts.c @@ -0,0 +1,307 @@ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2002,2003,2005,2007,2008,2009 Free Software Foundation, Inc. + * + * GRUB is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * GRUB is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GRUB. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <grub/term.h> +#include <grub/err.h> +#include <grub/mm.h> +#include <grub/misc.h> +#include <grub/env.h> +#include <grub/time.h> +#include <grub/dl.h> +#include <grub/keyboard_layouts.h> +#include <grub/command.h> +#include <grub/i18n.h> +#include <grub/file.h> + +GRUB_MOD_LICENSE ("GPLv3+"); + +static struct grub_keyboard_layout layout_us = { + .keyboard_map = { + /* Keyboard errors. Handled by driver. */ + /* 0x00 */ 0, 0, 0, 0, + + /* 0x04 */ 'a', 'b', 'c', 'd', + /* 0x08 */ 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', + /* 0x10 */ 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', + /* 0x18 */ 'u', 'v', 'w', 'x', 'y', 'z', '1', '2', + /* 0x20 */ '3', '4', '5', '6', '7', '8', '9', '0', + /* 0x28 */ '\n', GRUB_TERM_ESC, GRUB_TERM_BACKSPACE, GRUB_TERM_TAB, ' ', '-', '=', '[', + /* According to usage table 0x31 should be mapped to '/' + but testing with real keyboard shows that 0x32 is remapped to '/'. + Map 0x31 to 0. + */ + /* 0x30 */ ']', 0, '\\', ';', '\'', '`', ',', '.', + /* 0x39 is CapsLock. Handled by driver. */ + /* 0x38 */ '/', 0, GRUB_TERM_KEY_F1, GRUB_TERM_KEY_F2, + /* 0x3c */ GRUB_TERM_KEY_F3, GRUB_TERM_KEY_F4, + /* 0x3e */ GRUB_TERM_KEY_F5, GRUB_TERM_KEY_F6, + /* 0x40 */ GRUB_TERM_KEY_F7, GRUB_TERM_KEY_F8, + /* 0x42 */ GRUB_TERM_KEY_F9, GRUB_TERM_KEY_F10, + /* 0x44 */ GRUB_TERM_KEY_F11, GRUB_TERM_KEY_F12, + /* PrtScr and ScrollLock. Not handled yet. */ + /* 0x46 */ 0, 0, + /* 0x48 is Pause. Not handled yet. */ + /* 0x48 */ 0, GRUB_TERM_KEY_INSERT, + /* 0x4a */ GRUB_TERM_KEY_HOME, GRUB_TERM_KEY_PPAGE, + /* 0x4c */ GRUB_TERM_KEY_DC, GRUB_TERM_KEY_END, + /* 0x4e */ GRUB_TERM_KEY_NPAGE, GRUB_TERM_KEY_RIGHT, + /* 0x50 */ GRUB_TERM_KEY_LEFT, GRUB_TERM_KEY_DOWN, + /* 0x53 is NumLock. Handled by driver. */ + /* 0x52 */ GRUB_TERM_KEY_UP, 0, + /* 0x54 */ '/', '*', + /* 0x56 */ '-', '+', + /* 0x58 */ '\n', GRUB_TERM_KEY_END, + /* 0x5a */ GRUB_TERM_KEY_DOWN, GRUB_TERM_KEY_NPAGE, + /* 0x5c */ GRUB_TERM_KEY_LEFT, GRUB_TERM_KEY_CENTER, + /* 0x5e */ GRUB_TERM_KEY_RIGHT, GRUB_TERM_KEY_HOME, + /* 0x60 */ GRUB_TERM_KEY_UP, GRUB_TERM_KEY_PPAGE, + /* 0x62 */ GRUB_TERM_KEY_INSERT, GRUB_TERM_KEY_DC, + /* 0x64 */ '\\' + }, + .keyboard_map_shift = { + /* Keyboard errors. Handled by driver. */ + /* 0x00 */ 0, 0, 0, 0, + + /* 0x04 */ 'A', 'B', 'C', 'D', + /* 0x08 */ 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', + /* 0x10 */ 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', + /* 0x18 */ 'U', 'V', 'W', 'X', 'Y', 'Z', '!', '@', + /* 0x20 */ '#', '$', '%', '^', '&', '*', '(', ')', + /* 0x28 */ '\n' | GRUB_TERM_SHIFT, GRUB_TERM_ESC | GRUB_TERM_SHIFT, + /* 0x2a */ GRUB_TERM_BACKSPACE | GRUB_TERM_SHIFT, GRUB_TERM_TAB | GRUB_TERM_SHIFT, + /* 0x2c */ ' ' | GRUB_TERM_SHIFT, '_', '+', '{', + /* According to usage table 0x31 should be mapped to '/' + but testing with real keyboard shows that 0x32 is remapped to '/'. + Map 0x31 to 0. + */ + /* 0x30 */ '}', 0, '|', ':', '"', '~', '<', '>', + /* 0x39 is CapsLock. Handled by driver. */ + /* 0x38 */ '?', 0, + /* 0x3a */ GRUB_TERM_KEY_F1 | GRUB_TERM_SHIFT, + /* 0x3b */ GRUB_TERM_KEY_F2 | GRUB_TERM_SHIFT, + /* 0x3c */ GRUB_TERM_KEY_F3 | GRUB_TERM_SHIFT, + /* 0x3d */ GRUB_TERM_KEY_F4 | GRUB_TERM_SHIFT, + /* 0x3e */ GRUB_TERM_KEY_F5 | GRUB_TERM_SHIFT, + /* 0x3f */ GRUB_TERM_KEY_F6 | GRUB_TERM_SHIFT, + /* 0x40 */ GRUB_TERM_KEY_F7 | GRUB_TERM_SHIFT, + /* 0x41 */ GRUB_TERM_KEY_F8 | GRUB_TERM_SHIFT, + /* 0x42 */ GRUB_TERM_KEY_F9 | GRUB_TERM_SHIFT, + /* 0x43 */ GRUB_TERM_KEY_F10 | GRUB_TERM_SHIFT, + /* 0x44 */ GRUB_TERM_KEY_F11 | GRUB_TERM_SHIFT, + /* 0x45 */ GRUB_TERM_KEY_F12 | GRUB_TERM_SHIFT, + /* PrtScr and ScrollLock. Not handled yet. */ + /* 0x46 */ 0, 0, + /* 0x48 is Pause. Not handled yet. */ + /* 0x48 */ 0, GRUB_TERM_KEY_INSERT | GRUB_TERM_SHIFT, + /* 0x4a */ GRUB_TERM_KEY_HOME | GRUB_TERM_SHIFT, + /* 0x4b */ GRUB_TERM_KEY_PPAGE | GRUB_TERM_SHIFT, + /* 0x4c */ GRUB_TERM_KEY_DC | GRUB_TERM_SHIFT, + /* 0x4d */ GRUB_TERM_KEY_END | GRUB_TERM_SHIFT, + /* 0x4e */ GRUB_TERM_KEY_NPAGE | GRUB_TERM_SHIFT, + /* 0x4f */ GRUB_TERM_KEY_RIGHT | GRUB_TERM_SHIFT, + /* 0x50 */ GRUB_TERM_KEY_LEFT | GRUB_TERM_SHIFT, + /* 0x51 */ GRUB_TERM_KEY_DOWN | GRUB_TERM_SHIFT, + /* 0x53 is NumLock. Handled by driver. */ + /* 0x52 */ GRUB_TERM_KEY_UP | GRUB_TERM_SHIFT, 0, + /* 0x54 */ '/', '*', + /* 0x56 */ '-', '+', + /* 0x58 */ '\n' | GRUB_TERM_SHIFT, '1', '2', '3', '4', '5','6', '7', + /* 0x60 */ '8', '9', '0', '.', '|' + } +}; + +static struct grub_keyboard_layout *grub_current_layout = &layout_us; + +static int +map_key_core (int code, int status, int *alt_gr_consumed) +{ + *alt_gr_consumed = 0; + + if (code >= GRUB_KEYBOARD_LAYOUTS_ARRAY_SIZE) + return 0; + + if (status & GRUB_TERM_STATUS_RALT) + { + if (status & (GRUB_TERM_STATUS_LSHIFT | GRUB_TERM_STATUS_RSHIFT)) + { + if (grub_current_layout->keyboard_map_shift_l3[code]) + { + *alt_gr_consumed = 1; + return grub_current_layout->keyboard_map_shift_l3[code]; + } + } + else if (grub_current_layout->keyboard_map_l3[code]) + { + *alt_gr_consumed = 1; + return grub_current_layout->keyboard_map_l3[code]; + } + } + if (status & (GRUB_TERM_STATUS_LSHIFT | GRUB_TERM_STATUS_RSHIFT)) + return grub_current_layout->keyboard_map_shift[code]; + else + return grub_current_layout->keyboard_map[code]; +} + +unsigned +grub_term_map_key (grub_keyboard_key_t code, int status) +{ + int alt_gr_consumed = 0; + int key; + + if (code >= 0x59 && code <= 0x63 && (status & GRUB_TERM_STATUS_NUM)) + { + if (status & (GRUB_TERM_STATUS_RSHIFT | GRUB_TERM_STATUS_LSHIFT)) + status &= ~(GRUB_TERM_STATUS_RSHIFT | GRUB_TERM_STATUS_LSHIFT); + else + status |= GRUB_TERM_STATUS_RSHIFT; + } + + key = map_key_core (code, status, &alt_gr_consumed); + + if (key == 0 || key == GRUB_TERM_SHIFT) { + grub_printf ("Unknown key 0x%x detected\n", code); + return GRUB_TERM_NO_KEY; + } + + if (status & GRUB_TERM_STATUS_CAPS) + { + if ((key >= 'a') && (key <= 'z')) + key += 'A' - 'a'; + else if ((key >= 'A') && (key <= 'Z')) + key += 'a' - 'A'; + } + + if ((status & GRUB_TERM_STATUS_LALT) || + ((status & GRUB_TERM_STATUS_RALT) && !alt_gr_consumed)) + key |= GRUB_TERM_ALT; + if (status & (GRUB_TERM_STATUS_LCTRL | GRUB_TERM_STATUS_RCTRL)) + key |= GRUB_TERM_CTRL; + + return key; +} + +static grub_err_t +grub_cmd_keymap (struct grub_command *cmd __attribute__ ((unused)), + int argc, char *argv[]) +{ + char *filename; + grub_file_t file; + grub_uint32_t version; + grub_uint8_t magic[GRUB_KEYBOARD_LAYOUTS_FILEMAGIC_SIZE]; + struct grub_keyboard_layout *newmap = NULL; + unsigned i; + + if (argc < 1) + return grub_error (GRUB_ERR_BAD_ARGUMENT, "file or layout name required"); + if (argv[0][0] != '(' && argv[0][0] != '/' && argv[0][0] != '+') + { + const char *prefix = grub_env_get ("prefix"); + if (!prefix) + return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("variable `%s' isn't set"), "prefix"); + filename = grub_xasprintf ("%s/layouts/%s.gkb", prefix, argv[0]); + if (!filename) + return grub_errno; + } + else + filename = argv[0]; + + file = grub_file_open (filename, GRUB_FILE_TYPE_KEYBOARD_LAYOUT); + if (! file) + goto fail; + + if (grub_file_read (file, magic, sizeof (magic)) != sizeof (magic)) + { + if (!grub_errno) + grub_error (GRUB_ERR_BAD_ARGUMENT, N_("premature end of file %s"), + filename); + goto fail; + } + + if (grub_memcmp (magic, GRUB_KEYBOARD_LAYOUTS_FILEMAGIC, + GRUB_KEYBOARD_LAYOUTS_FILEMAGIC_SIZE) != 0) + { + grub_error (GRUB_ERR_BAD_ARGUMENT, "invalid magic"); + goto fail; + } + + if (grub_file_read (file, &version, sizeof (version)) != sizeof (version)) + { + if (!grub_errno) + grub_error (GRUB_ERR_BAD_ARGUMENT, N_("premature end of file %s"), + filename); + goto fail; + } + + if (version != grub_cpu_to_le32_compile_time (GRUB_KEYBOARD_LAYOUTS_VERSION)) + { + grub_error (GRUB_ERR_BAD_ARGUMENT, "invalid version"); + goto fail; + } + + newmap = grub_malloc (sizeof (*newmap)); + if (!newmap) + goto fail; + + if (grub_file_read (file, newmap, sizeof (*newmap)) != sizeof (*newmap)) + { + if (!grub_errno) + grub_error (GRUB_ERR_BAD_ARGUMENT, N_("premature end of file %s"), + filename); + goto fail; + } + + for (i = 0; i < ARRAY_SIZE (newmap->keyboard_map); i++) + newmap->keyboard_map[i] = grub_le_to_cpu32(newmap->keyboard_map[i]); + + for (i = 0; i < ARRAY_SIZE (newmap->keyboard_map_shift); i++) + newmap->keyboard_map_shift[i] + = grub_le_to_cpu32(newmap->keyboard_map_shift[i]); + + for (i = 0; i < ARRAY_SIZE (newmap->keyboard_map_l3); i++) + newmap->keyboard_map_l3[i] + = grub_le_to_cpu32(newmap->keyboard_map_l3[i]); + + for (i = 0; i < ARRAY_SIZE (newmap->keyboard_map_shift_l3); i++) + newmap->keyboard_map_shift_l3[i] + = grub_le_to_cpu32(newmap->keyboard_map_shift_l3[i]); + + grub_current_layout = newmap; + + return GRUB_ERR_NONE; + + fail: + if (filename != argv[0]) + grub_free (filename); + grub_free (newmap); + if (file) + grub_file_close (file); + return grub_errno; +} + +static grub_command_t cmd; + +GRUB_MOD_INIT(keylayouts) +{ + cmd = grub_register_command ("keymap", grub_cmd_keymap, + 0, N_("Load a keyboard layout.")); +} + +GRUB_MOD_FINI(keylayouts) +{ + grub_unregister_command (cmd); +} |