formatting; split kbd constants into kbd.h

1 files changed, 112 insertions, 0 deletions

diff --git a/kbd.h b/kbd.h
new file mode 100644
index 0000000..babbd6e
--- /dev/null
+++ b/kbd.h
@@ -0,0 +1,112 @@
+// PC keyboard interface constants
+
+#define KBSTATP         0x64    // kbd controller status port(I)
+#define KBS_DIB         0x01    // kbd data in buffer
+#define KBDATAP         0x60    // kbd data port(I)
+
+#define NO              0
+
+#define SHIFT           (1<<0)
+#define CTL             (1<<1)
+#define ALT             (1<<2)
+
+#define CAPSLOCK        (1<<3)
+#define NUMLOCK         (1<<4)
+#define SCROLLLOCK      (1<<5)
+
+#define E0ESC           (1<<6)
+
+// Special keycodes
+#define KEY_HOME        0xE0
+#define KEY_END         0xE1
+#define KEY_UP          0xE2
+#define KEY_DN          0xE3
+#define KEY_LF          0xE4
+#define KEY_RT          0xE5
+#define KEY_PGUP        0xE6
+#define KEY_PGDN        0xE7
+#define KEY_INS         0xE8
+#define KEY_DEL         0xE9
+
+// C('A') == Control-A
+#define C(x) (x - '@')
+
+static uchar shiftcode[256] =
+{
+  [0x1D] CTL,
+  [0x2A] SHIFT,
+  [0x36] SHIFT,
+  [0x38] ALT,
+  [0x9D] CTL,
+  [0xB8] ALT
+};
+
+static uchar togglecode[256] =
+{
+  [0x3A] CAPSLOCK,
+  [0x45] NUMLOCK,
+  [0x46] SCROLLLOCK
+};
+
+static uchar normalmap[256] =
+{
+  NO,   0x1B, '1',  '2',  '3',  '4',  '5',  '6',  // 0x00
+  '7',  '8',  '9',  '0',  '-',  '=',  '\b', '\t',
+  'q',  'w',  'e',  'r',  't',  'y',  'u',  'i',  // 0x10
+  'o',  'p',  '[',  ']',  '\n', NO,   'a',  's',
+  'd',  'f',  'g',  'h',  'j',  'k',  'l',  ';',  // 0x20
+  '\'', '`',  NO,   '\\', 'z',  'x',  'c',  'v',
+  'b',  'n',  'm',  ',',  '.',  '/',  NO,   '*',  // 0x30
+  NO,   ' ',  NO,   NO,   NO,   NO,   NO,   NO,
+  NO,   NO,   NO,   NO,   NO,   NO,   NO,   '7',  // 0x40
+  '8',  '9',  '-',  '4',  '5',  '6',  '+',  '1',
+  '2',  '3',  '0',  '.',  NO,   NO,   NO,   NO,   // 0x50
+  [0x9C] '\n',      // KP_Enter
+  [0xB5] '/',       // KP_Div
+  [0xC8] KEY_UP,    [0xD0] KEY_DN,
+  [0xC9] KEY_PGUP,  [0xD1] KEY_PGDN,
+  [0xCB] KEY_LF,    [0xCD] KEY_RT,
+  [0x97] KEY_HOME,  [0xCF] KEY_END,
+  [0xD2] KEY_INS,   [0xD3] KEY_DEL
+};
+
+static uchar shiftmap[256] =
+{
+  NO,   033,  '!',  '@',  '#',  '$',  '%',  '^',  // 0x00
+  '&',  '*',  '(',  ')',  '_',  '+',  '\b', '\t',
+  'Q',  'W',  'E',  'R',  'T',  'Y',  'U',  'I',  // 0x10
+  'O',  'P',  '{',  '}',  '\n', NO,   'A',  'S',
+  'D',  'F',  'G',  'H',  'J',  'K',  'L',  ':',  // 0x20
+  '"',  '~',  NO,   '|',  'Z',  'X',  'C',  'V',
+  'B',  'N',  'M',  '<',  '>',  '?',  NO,   '*',  // 0x30
+  NO,   ' ',  NO,   NO,   NO,   NO,   NO,   NO,
+  NO,   NO,   NO,   NO,   NO,   NO,   NO,   '7',  // 0x40
+  '8',  '9',  '-',  '4',  '5',  '6',  '+',  '1',
+  '2',  '3',  '0',  '.',  NO,   NO,   NO,   NO,   // 0x50
+  [0x9C] '\n',      // KP_Enter
+  [0xB5] '/',       // KP_Div
+  [0xC8] KEY_UP,    [0xD0] KEY_DN,
+  [0xC9] KEY_PGUP,  [0xD1] KEY_PGDN,
+  [0xCB] KEY_LF,    [0xCD] KEY_RT,
+  [0x97] KEY_HOME,  [0xCF] KEY_END,
+  [0xD2] KEY_INS,   [0xD3] KEY_DEL
+};
+
+static uchar ctlmap[256] =
+{
+  NO,      NO,      NO,      NO,      NO,      NO,      NO,      NO,
+  NO,      NO,      NO,      NO,      NO,      NO,      NO,      NO,
+  C('Q'),  C('W'),  C('E'),  C('R'),  C('T'),  C('Y'),  C('U'),  C('I'),
+  C('O'),  C('P'),  NO,      NO,      '\r',    NO,      C('A'),  C('S'),
+  C('D'),  C('F'),  C('G'),  C('H'),  C('J'),  C('K'),  C('L'),  NO,
+  NO,      NO,      NO,      C('\\'), C('Z'),  C('X'),  C('C'),  C('V'),
+  C('B'),  C('N'),  C('M'),  NO,      NO,      C('/'),  NO,      NO,
+  [0x9C] '\r',      // KP_Enter
+  [0xB5] C('/'),    // KP_Div
+  [0xC8] KEY_UP,    [0xD0] KEY_DN,
+  [0xC9] KEY_PGUP,  [0xD1] KEY_PGDN,
+  [0xCB] KEY_LF,    [0xCD] KEY_RT,
+  [0x97] KEY_HOME,  [0xCF] KEY_END,
+  [0xD2] KEY_INS,   [0xD3] KEY_DEL
+};
+