diff options
Diffstat (limited to 'payloads/libpayload/drivers/keyboard.c')
| -rw-r--r-- | payloads/libpayload/drivers/keyboard.c | 143 |
1 files changed, 134 insertions, 9 deletions
diff --git a/payloads/libpayload/drivers/keyboard.c b/payloads/libpayload/drivers/keyboard.c index b33289801f..944b9a66a2 100644 --- a/payloads/libpayload/drivers/keyboard.c +++ b/payloads/libpayload/drivers/keyboard.c @@ -28,6 +28,7 @@ */ #include <libpayload.h> +#include <config.h> #include <curses.h> #define I8042_CMD_READ_MODE 0x20 @@ -35,7 +36,18 @@ #define I8042_MODE_XLATE 0x40 -unsigned short map[4][0x57] = { +static void (*reset_handler)(void) = NULL; + +struct layout_maps { + char *country; + unsigned short map[4][0x57]; +}; + +struct layout_maps *map; + +struct layout_maps keyboard_layouts[] = { +#ifdef CONFIG_PC_KEYBOARD_LAYOUT_US +{ .country = "us", .map = { { /* No modifier */ 0x00, 0x1B, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x30, 0x2D, 0x3D, 0x08, 0x09, @@ -88,6 +100,65 @@ unsigned short map[4][0x57] = { KEY_UP, KEY_NPAGE, 0x00, KEY_LEFT, 0x00, KEY_RIGHT, 0x00, KEY_END, KEY_DOWN, KEY_PPAGE, 0x00, KEY_DC, 0x00, 0x00, 0x00 } +}}, +#endif +#ifdef CONFIG_PC_KEYBOARD_LAYOUT_DE +{ .country = "de", .map = { + { /* No modifier */ + 0x00, 0x1B, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, + 0x37, 0x38, 0x39, 0x30, 0x00, 0x27, 0x08, 0x09, + 0x71, 0x77, 0x65, 0x72, 0x74, 0x7A, 0x75, 0x69, + 0x6F, 0x70, 0x00, 0x2B, 0x0A, 0x00, 0x61, 0x73, + 0x64, 0x66, 0x67, 0x68, 0x6A, 0x6B, 0x6C, 0x00, + 0x00, 0x5E, 0x00, 0x23, 0x79, 0x78, 0x63, 0x76, + 0x62, 0x6E, 0x6D, 0x2C, 0x2E, 0x2D, 0x00, 0x2A, + 0x00, 0x20, 0x00, KEY_F(1), KEY_F(2), KEY_F(3), KEY_F(4), KEY_F(5), + KEY_F(6), KEY_F(7), KEY_F(8), KEY_F(9), KEY_F(10), 0x00, 0x00, KEY_HOME, + KEY_UP, KEY_NPAGE, 0x00, KEY_LEFT, 0x00, KEY_RIGHT, 0x00, KEY_END, + KEY_DOWN, KEY_PPAGE, 0x00, KEY_DC, 0x00, 0x00, 0x3C + }, + { /* Shift */ + 0x00, 0x1B, 0x21, 0x22, 0xA7, 0x24, 0x25, 0x26, + 0x2F, 0x28, 0x29, 0x3D, 0x3F, 0x60, 0x08, 0x00, + 0x51, 0x57, 0x45, 0x52, 0x54, 0x5A, 0x55, 0x49, + 0x4F, 0x50, 0x00, 0x2A, 0x0A, 0x00, 0x41, 0x53, + 0x44, 0x46, 0x47, 0x48, 0x4A, 0x4B, 0x4C, 0x00, + 0x00, 0x7E, 0x00, 0x27, 0x59, 0x58, 0x43, 0x56, + 0x42, 0x4E, 0x4D, 0x3B, 0x3A, 0x5F, 0x00, 0x2A, + 0x00, 0x20, 0x00, KEY_F(1), KEY_F(2), KEY_F(3), KEY_F(4), KEY_F(5), + KEY_F(6), KEY_F(7), KEY_F(8), KEY_F(9), KEY_F(10), 0x00, 0x00, KEY_HOME, + KEY_UP, KEY_NPAGE, 0x00, KEY_LEFT, 0x00, KEY_RIGHT, 0x00, KEY_END, + KEY_DOWN, KEY_PPAGE, 0x00, KEY_DC, 0x00, 0x00, 0x3E + }, + { /* ALT */ + 0x00, 0x1B, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, + 0x7B, 0x5B, 0x5D, 0x7D, 0x5C, 0x3D, 0x08, 0x09, + 0x40, 0x77, 0x65, 0x72, 0x74, 0x79, 0x75, 0x69, + 0x6F, 0x70, 0x5B, 0x7E, 0x0A, 0x00, 0x61, 0x73, + 0x64, 0x66, 0x67, 0x68, 0x6A, 0x6B, 0x6C, 0x3B, + 0x27, 0x60, 0x00, 0x5C, 0x7A, 0x78, 0x63, 0x76, + 0x62, 0x6E, 0x6D, 0x2C, 0x2E, 0x2F, 0x00, 0x2A, + 0x00, 0x20, 0x00, KEY_F(1), KEY_F(2), KEY_F(3), KEY_F(4), KEY_F(5), + KEY_F(6), KEY_F(7), KEY_F(8), KEY_F(9), KEY_F(10), 0x00, 0x00, KEY_HOME, + KEY_UP, KEY_NPAGE, 0x00, KEY_LEFT, 0x00, KEY_RIGHT, 0x00, KEY_END, + KEY_DOWN, KEY_PPAGE, 0x00, KEY_DC, 0x00, 0x00, 0x7C + }, + { /* Shift-ALT */ + /* copied from US */ + 0x00, 0x1B, 0x21, 0x40, 0x23, 0x24, 0x25, 0x5E, + 0x26, 0x2A, 0x28, 0x29, 0x5F, 0x2B, 0x08, 0x00, + 0x51, 0x57, 0x45, 0x52, 0x54, 0x59, 0x55, 0x49, + 0x4F, 0x50, 0x7B, 0x7D, 0x0A, 0x00, 0x41, 0x53, + 0x44, 0x46, 0x47, 0x48, 0x4A, 0x4B, 0x4C, 0x3A, + 0x22, 0x7E, 0x00, 0x7C, 0x5A, 0x58, 0x43, 0x56, + 0x42, 0x4E, 0x4D, 0x3C, 0x3E, 0x3F, 0x00, 0x2A, + 0x00, 0x20, 0x00, KEY_F(1), KEY_F(2), KEY_F(3), KEY_F(4), KEY_F(5), + KEY_F(6), KEY_F(7), KEY_F(8), KEY_F(9), KEY_F(10), 0x00, 0x00, KEY_HOME, + KEY_UP, KEY_NPAGE, 0x00, KEY_LEFT, 0x00, KEY_RIGHT, 0x00, KEY_END, + KEY_DOWN, KEY_PPAGE, 0x00, KEY_DC, 0x00, 0x00, 0x00 + } +}}, +#endif }; #define MOD_SHIFT (1 << 0) @@ -95,6 +166,16 @@ unsigned short map[4][0x57] = { #define MOD_CAPSLOCK (1 << 2) #define MOD_ALT (1 << 3) +static void keyboard_cmd(unsigned char cmd, unsigned char val) +{ + outb(cmd, 0x60); + /* wait until keyboard controller accepts cmds: */ + while (inb(0x64) & 2); + outb(val, 0x60); + while (inb(0x64) & 2); +} + + int keyboard_havechar(void) { unsigned char c = inb(0x64); @@ -144,10 +225,13 @@ int keyboard_getchar(void) modifier &= ~MOD_CTRL; break; case 0x3a: - if (modifier & MOD_CAPSLOCK) + if (modifier & MOD_CAPSLOCK) { modifier &= ~MOD_CAPSLOCK; - else + keyboard_cmd(0xed, (0 << 2)); + } else { modifier |= MOD_CAPSLOCK; + keyboard_cmd(0xed, (1 << 2)); + } break; } @@ -158,12 +242,21 @@ int keyboard_getchar(void) if (modifier & MOD_ALT) shift += 2; - ret = map[shift][ch]; - - if (modifier & MOD_CTRL) - ret = (ret >= 'a' && ret <= 'z') ? ret & 0x1f : 0; - - return ret; + ret = map->map[shift][ch]; + + if (modifier & MOD_CTRL) { + switch (ret) { + case 'a' ... 'z': + ret &= 0x1f; + break; + case KEY_DC: + /* vulcan nerve pinch */ + if ((modifier & MOD_ALT) && reset_handler) + reset_handler(); + default: + ret = 0; + } + } } return ret; @@ -203,9 +296,41 @@ static void keyboard_set_mode(unsigned char mode) outb(mode, 0x60); } +/** + * Set keyboard layout + * @param country string describing the keyboard layout language. + * Valid values are "en", "de". + */ + +int keyboard_set_layout(char *country) +{ + int i; + + for (i=0; i<ARRAY_SIZE(keyboard_layouts); i++) { + if (strncmp(keyboard_layouts[i].country, country, + strlen(keyboard_layouts[i].country))) + continue; + + /* Found, changing keyboard layout */ + map = &keyboard_layouts[i]; + return 0; + } + + /* Nothing found, not changed */ + return -1; +} + +int keyboard_add_reset_handler(void (*new_handler)(void)) +{ + reset_handler = new_handler; + + return 0; +} + void keyboard_init(void) { u8 mode; + map = &keyboard_layouts[0]; /* Empty keyboard buffer */ while (keyboard_havechar()) keyboard_getchar(); |