diff options
Diffstat (limited to 'payloads/libpayload/curses')
| -rw-r--r-- | payloads/libpayload/curses/keyboard.c | 220 |
1 files changed, 20 insertions, 200 deletions
diff --git a/payloads/libpayload/curses/keyboard.c b/payloads/libpayload/curses/keyboard.c index 83215966b7..cfb7b769d7 100644 --- a/payloads/libpayload/curses/keyboard.c +++ b/payloads/libpayload/curses/keyboard.c @@ -138,216 +138,36 @@ static int cook_serial(unsigned char ch) /* ================ Keyboard ================ */ -/* Scancode macros */ - -#define DOWN(_c) (0x80 | (_c)) -#define UP(_c) (_c) - -#define ISDOWN(_c) ((_c) & 0x80) -#define ISUP(_c) (!ISDOWN((_c))) - -#define SCANCODE(_c) ((_c) & ~0x80) - -/* Scancode definitions for the modifiers */ - -#define SCANCODE_RSHIFT 0x36 -#define SCANCODE_LSHIFT 0x2a -#define SCANCODE_CAPSLOCK 0x3a -#define SCANCODE_LALT 0x38 -#define SCANCODE_LCTRL 0x1d - -/* Modifier flags */ - -#define SHIFT_MODIFIER 0x1 -#define CAPSLOCK_MODIFIER 0x2 -#define ALT_MODIFIER 0x4 -#define CTRL_MODIFIER 0x8 - -#define CTRL(_c) (_c & 0x1f) - -struct { - int normal; - int shift; -} scancode_map[] = { - { }, - { CTRL('['), CTRL('[')}, - { '1', '!' }, - { '2', '@' }, - { '3', '#' }, - { '4', '$' }, - { '5', '%' }, - { '6', '^' }, - { '7', '&' }, - { '8', '*' }, - { '9', '(' }, - { '0', ')' }, - { '-', '_' }, - { '=', '+' }, - { KEY_BACKSPACE, KEY_BACKSPACE}, - { CTRL('I' ), KEY_BTAB }, /* 0x0F */ - { 'q', 'Q' }, - { 'w', 'W' }, - { 'e', 'E' }, - { 'r', 'R' }, - { 't', 'T' }, - { 'y', 'Y' }, - { 'u', 'U' }, - { 'i', 'I' }, - { 'o', 'O' }, - { 'p', 'P' }, - { '[', '{' }, - { ']', '{' }, - { KEY_ENTER, KEY_ENTER }, - { 0 , 0 }, - { 'a', 'A' }, - { 's', 'S' }, /* 0x1F */ - { 'd', 'D' }, - { 'f', 'F' }, - { 'g', 'G' }, - { 'h', 'H' }, - { 'j', 'J' }, - { 'k', 'K' }, - { 'l', 'L' }, - { ';', ':' }, - { '\'', '\"' }, - { '`', '~', }, - { 0, 0 }, - { '\\', '|' }, - { 'z', 'Z' }, - { 'x', 'X' }, - { 'c', 'C' }, - { 'v', 'V' }, /* 0x2F */ - { 'b', 'B' }, - { 'n', 'N' }, - { 'm', 'M' }, - { ',', '<'}, - { '.', '>' }, - { '/', '?' }, - { 0, 0 }, /* RSHIFT */ - { '*', '*' }, - { 0, 0 }, /* LALT */ - { ' ', ' ' }, /* Space */ - { 0, 0 }, /* Capslock */ - { KEY_F(1), KEY_F(1) }, - { KEY_F(2), KEY_F(2) }, - { KEY_F(3), KEY_F(3) }, - { KEY_F(4), KEY_F(4) }, - { KEY_F(5), KEY_F(5) }, /* 0x3F */ - { KEY_F(6), KEY_F(6) }, - { KEY_F(7), KEY_F(7) }, - { KEY_F(8), KEY_F(8) }, - { KEY_F(9), KEY_F(9) }, - { KEY_F(10), KEY_F(10) }, - { 0, 0 }, /* Numlock */ - { 0, 0 }, /* Scroll lock */ - { KEY_HOME, KEY_HOME }, - { KEY_UP, KEY_UP }, - { KEY_PPAGE, KEY_PPAGE }, - { '-', '-' }, - { KEY_LEFT, KEY_LEFT }, - { 0, 0 }, - { KEY_RIGHT, KEY_RIGHT }, - { '-', '-' }, - { KEY_END, KEY_END }, /* 0x4F */ - { KEY_DOWN, KEY_DOWN }, - { KEY_NPAGE, KEY_NPAGE }, - { KEY_IC, KEY_IC }, - { KEY_DC, KEY_DC }, - { 0, 0 }, /* sysreq */ - { 0, 0 }, - { KEY_F(11), KEY_F(11) }, - { KEY_F(12), KEY_F(12) }, -}; - -static int cook_scancodes(unsigned char code) -{ - static int modifiers = 0; - int ch = 0, sc, shift; - - switch (code) { - case DOWN(SCANCODE_RSHIFT): - case DOWN(SCANCODE_LSHIFT): - modifiers |= SHIFT_MODIFIER; - return 0; - case UP(SCANCODE_RSHIFT): - case UP(SCANCODE_LSHIFT): - modifiers &= ~SHIFT_MODIFIER; - return 0; - case UP(SCANCODE_CAPSLOCK): - if (modifiers & CAPSLOCK_MODIFIER) - modifiers &= ~CAPSLOCK_MODIFIER; - else - modifiers |= CAPSLOCK_MODIFIER; - return 0; - case DOWN(SCANCODE_LALT): - modifiers |= ALT_MODIFIER; - return 0; - case UP(SCANCODE_LALT): - modifiers &= ~ALT_MODIFIER; - return 0; - case DOWN(SCANCODE_LCTRL): - modifiers |= CTRL_MODIFIER; - return 0; - case UP(SCANCODE_LCTRL): - modifiers &= ~CTRL_MODIFIER; - return 0; - } - - /* Only process keys on an upstroke. */ - if (!ISUP(code)) - return 0; - - sc = SCANCODE(code); - - if (sc == 0 || sc > 0x59) - return ERR; - - shift = (modifiers & SHIFT_MODIFIER) ^ (modifiers & CAPSLOCK_MODIFIER); - - ch = shift ? scancode_map[sc].shift : scancode_map[sc].normal; - - if (modifiers & CTRL_MODIFIER) - ch = (ch >= 0x3F && ch <= 0x5F) ? CTRL(ch) : 0; - - return ch; -} - static int curses_getchar(int delay) { - unsigned char c = 0; - int ret; + unsigned short c; do { - if (curses_flags & F_ENABLE_CONSOLE) - c = inb(0x64); - - if ((c & 1) == 0) { - - if ((curses_flags & F_ENABLE_SERIAL) && - serial_havechar()) { - c = serial_getchar(); - return cook_serial(c); - } - - if (delay == 0) - break; - - if (delay > 0) { - mdelay(100); - delay--; - } - - continue; +#ifdef CONFIG_PC_KEYBOARD + if ((curses_flags & F_ENABLE_CONSOLE) && + keyboard_havechar()) { + c = keyboard_getchar(); + if (c != 0) return c; } +#endif - c = inb(0x60); +#ifdef CONFIG_SERIAL_CONSOLE + if ((curses_flags & F_ENABLE_SERIAL) && + serial_havechar()) { + c = serial_getchar(); + return cook_serial(c); + } +#endif - ret = cook_scancodes(c); + if (delay == 0) + break; - if (ret != 0) { - return ret; + if (delay > 0) { + mdelay(100); + delay--; } + } while (1); return ERR; |