+/*
+Copyright 2011 Jun Wako <wakojun@gmail.com>
+
+This program 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 2 of the License, or
+(at your option) any later version.
+
+This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
/*
* scan matrix
*/
#include "util.h"
#include "debug.h"
#include "ps2.h"
-#include "usb_keyboard.h"
-#include "matrix_skel.h"
+#include "matrix.h"
#if (MATRIX_COLS > 16)
* 8bit
* ---------
* 0| |
- * :| XX | 00-7F for normal codes
+ * :| XX | 00-7F for normal codes(without E0-prefix)
* f|_________|
* 10| |
* :| E0 XX | 80-FF for E0-prefix codes(use (XX|0x80) as code)
* 1f| |
* ---------
* exceptions:
- * 0x83: F8(normal code placed beyond 0x7F)
- * 0xFE: PrintScreen
- * 0xFF: Puause/Break
+ * 83: F8[0x83](normal codes but > 0x7F)
+ * FC: PrintScreen[E0 7C or 84]
+ * FE: Puause
*/
-#define _PRINT_SCREEN (0xFE)
-#define _PAUSE_BREAK (0xFF)
-#define _ROW(code) (code>>3)
-#define _COL(code) (code&0x07)
+#define F8 (0x83)
+#define PRINT_SCREEN (0xFC)
+#define PAUSE (0xFE)
+#define ROW(code) (code>>3)
+#define COL(code) (code&0x07)
-static bool _matrix_is_modified = false;
+static bool is_modified = false;
// matrix state buffer(1:on, 0:off)
#if (MATRIX_COLS <= 8)
-static uint8_t *matrix;
-static uint8_t _matrix0[MATRIX_ROWS];
+static uint8_t matrix[MATRIX_ROWS];
#else
-static uint16_t *matrix;
-static uint16_t _matrix0[MATRIX_ROWS];
+static uint16_t matrix[MATRIX_ROWS];
#endif
#ifdef MATRIX_HAS_GHOST
static bool matrix_has_ghost_in_row(uint8_t row);
#endif
-static void _matrix_make(uint8_t code);
-static void _matrix_break(uint8_t code);
-static void _ps2_reset(void);
-static void _ps2_set_leds(uint8_t leds);
+static void matrix_make(uint8_t code);
+static void matrix_break(uint8_t code);
inline
void matrix_init(void)
{
- print_enable = true;
ps2_host_init();
- _ps2_reset();
-
- // flush LEDs
- _ps2_set_leds(1<<PS2_LED_NUM_LOCK);
- _delay_ms(100);
- _ps2_set_leds(1<<PS2_LED_NUM_LOCK|1<<PS2_LED_CAPS_LOCK);
- _delay_ms(100);
- _ps2_set_leds(1<<PS2_LED_NUM_LOCK|1<<PS2_LED_CAPS_LOCK|1<<PS2_LED_SCROLL_LOCK);
- _delay_ms(300);
- _ps2_set_leds(0x00);
-
// initialize matrix state: all keys off
- for (uint8_t i=0; i < MATRIX_ROWS; i++) _matrix0[i] = 0x00;
- matrix = _matrix0;
+ for (uint8_t i=0; i < MATRIX_ROWS; i++) matrix[i] = 0x00;
return;
}
+/*
+ * PS/2 Scan Code Set 2: Exceptional Handling
+ *
+ * There are several keys to be handled exceptionally.
+ * The scan code for these keys are varied or prefix/postfix'd
+ * depending on modifier key state.
+ *
+ * References:
+ * http://www.microsoft.com/whdc/archive/scancode.mspx
+ * http://download.microsoft.com/download/1/6/1/161ba512-40e2-4cc9-843a-923143f3456c/scancode.doc
+ *
+ *
+ * Insert, Delete, Home, End, PageUp, PageDown, Up, Down, Right, Left:
+ * Num Lock: off
+ * modifiers | make | break
+ * ----------+---------------------------+----------------------
+ * Ohter | <make> | <break>
+ * LShift | E0 F0 12 <make> | <break> E0 12
+ * RShift | E0 F0 59 <make> | <break> E0 59
+ * L+RShift | E0 F0 12 E0 F0 59 <make> | <break> E0 59 E0 12
+ *
+ * Num Lock: on
+ * modifiers | make | break
+ * ----------+---------------------------+----------------------
+ * Other | E0 12 <make> | <break> E0 F0 12
+ * Shift'd | <make> | <break>
+ *
+ * Handling: ignore these prefix/postfix codes
+ *
+ *
+ * Keypad-/:
+ * modifiers | make | break
+ * ----------+---------------------------+----------------------
+ * Ohter | <make> | <break>
+ * LShift | E0 F0 12 <make> | <break> E0 12
+ * RShift | E0 F0 59 <make> | <break> E0 59
+ * L+RShift | E0 F0 12 E0 F0 59 <make> | <break> E0 59 E0 12
+ *
+ * Handling: ignore these prefix/postfix codes
+ *
+ *
+ * PrintScreen:
+ * With hoding down modifiers, the scan code is sent as following:
+ *
+ * modifiers | make | break
+ * ----------+--------------+-----------------------------------
+ * Other | E0 12 E0 7C | E0 F0 7C E0 F0 12
+ * Shift'd | E0 7C | E0 F0 7C
+ * Control'd | E0 7C | E0 F0 7C
+ * Alt'd | 84 | F0 84
+ *
+ * Handling: ignore prefix/postfix codes and treat both scan code
+ * E0 7C and 84 as PrintScreen.
+ *
+ * Pause:
+ * With hoding down modifiers, the scan code is sent as following:
+ *
+ * modifiers | make(no break code)
+ * ----------+--------------------------------------------------
+ * no mods | E1 14 77 E1 F0 14 F0 77
+ * Control'd | E0 7E E0 F0 7E
+ *
+ * Handling: treat these two code sequence as Pause
+ *
+ */
uint8_t matrix_scan(void)
{
static enum {
INIT,
- BREAK,
+ F0,
E0,
E0_F0,
- // states for PrintScreen
- E0_12,
- E0_12_E0,
- E0_F0_7C,
- E0_F0_7C_E0,
- E0_F0_7C_E0_F0,
// states for Pause/Break
E1,
E1_14,
} state = INIT;
- _matrix_is_modified = false;
+ is_modified = false;
// Pause/Break off(PS/2 has no break for this key)
- if (matrix_is_on(_ROW(_PAUSE_BREAK), _COL(_PAUSE_BREAK))) {
- _matrix_break(_PAUSE_BREAK);
+ if (matrix_is_on(ROW(PAUSE), COL(PAUSE))) {
+ matrix_break(PAUSE);
}
uint8_t code;
state = E0;
break;
case 0xF0: // break code
- state = BREAK;
+ state = F0;
break;
case 0xE1: // Pause/Break
state = E1;
break;
+ case 0x83: // F8
+ matrix_make(F8);
+ state = INIT;
+ break;
+ case 0x84: // PrintScreen
+ matrix_make(PRINT_SCREEN);
+ state = INIT;
+ break;
default: // normal key make
if (code < 0x80) {
- _matrix_make(code);
+ matrix_make(code);
} else {
- debug("ps/2 unknow code: "); debug_hex(code); debug("\n");
+ debug("unexpected scan code at INIT: "); debug_hex(code); debug("\n");
}
state = INIT;
}
break;
case E0:
switch (code) {
- case 0x12: // PrintScreen(make)
- state = E0_12;
- break;
- case 0x7C: // PrintScreen(typematic)
+ case 0x12: // postfix/postfix code for exceptional keys
+ case 0x59: // postfix/postfix code for exceptional keys
// ignore
state = INIT;
break;
+ case 0x7E: // former part of Control-Pause[E0 7E E0 F0 7E]
+ matrix_make(PAUSE);
+ state = INIT;
+ break;
case 0xF0: // E0 break
state = E0_F0;
break;
default: // E0 make
if (code < 0x80) {
- _matrix_make(code|0x80);
- } else {
- debug("ps/2 unknow code: "); debug_hex(code); debug("\n");
- }
- state = INIT;
- }
- break;
- case BREAK:
- if (code < 0x80) {
- _matrix_break(code);
- } else {
- debug("ps/2 unknow code: "); debug_hex(code); debug("\n");
- }
- state = INIT;
- break;
- case E0_F0: // E0 break
- switch (code) {
- case 0x7C:
- state = E0_F0_7C;
- break;
- default:
- if (code < 0x80) {
- _matrix_break(code|0x80);
+ matrix_make(code|0x80);
} else {
- debug("ps/2 unknow code: "); debug_hex(code); debug("\n");
+ debug("unexpected scan code at E0: "); debug_hex(code); debug("\n");
}
state = INIT;
}
break;
- /* PrintScreen(make) */
- case E0_12:
+ case F0:
switch (code) {
- case 0xE0:
- state = E0_12_E0;
- break;
- default:
- state = INIT;
- }
- break;
- case E0_12_E0:
- switch (code) {
- case 0x7C:
- _matrix_make(_PRINT_SCREEN);
+ case 0x83:
+ matrix_break(F8);
state = INIT;
break;
- default:
- state = INIT;
- }
- break;
- /* PrintScreen(break) */
- case E0_F0_7C:
- switch (code) {
- case 0xE0:
- state = E0_F0_7C_E0;
- break;
- default:
+ case 0x84:
+ matrix_break(PRINT_SCREEN);
state = INIT;
- }
- break;
- case E0_F0_7C_E0:
- switch (code) {
- case 0xF0:
- state = E0_F0_7C_E0_F0;
break;
default:
- state = INIT;
+ if (code < 0x80) {
+ matrix_break(code);
+ } else {
+ debug("unexpected scan code at F0: "); debug_hex(code); debug("\n");
+ }
+ state = INIT;
}
break;
- case E0_F0_7C_E0_F0:
+ case E0_F0: // E0 break
switch (code) {
- case 0x12:
- _matrix_break(_PRINT_SCREEN);
+ case 0x12: // postfix/postfix code for exceptional keys
+ case 0x59: // postfix/postfix code for exceptional keys
+ case 0x7E: // latter part of Control-Pause[E0 7E E0 F0 7E]
+ // ignore
state = INIT;
break;
default:
+ if (code < 0x80) {
+ matrix_break(code|0x80);
+ } else {
+ debug("unexpected scan code at E0_F0: "); debug_hex(code); debug("\n");
+ }
state = INIT;
}
break;
- /* Pause/Break */
+ /* Pause */
case E1:
switch (code) {
case 0x14:
case E1_14_77_E1_F0_14_F0:
switch (code) {
case 0x77:
- _matrix_make(_PAUSE_BREAK);
+ matrix_make(PAUSE);
state = INIT;
break;
default:
state = INIT;
}
}
-
- static uint8_t prev_leds = 0;
- if (prev_leds != usb_keyboard_leds) {
- uint8_t leds = 0;
- if (usb_keyboard_leds&(1<<USB_LED_SCROLL_LOCK))
- leds |= (1<<PS2_LED_SCROLL_LOCK);
- if (usb_keyboard_leds&(1<<USB_LED_NUM_LOCK))
- leds |= (1<<PS2_LED_NUM_LOCK);
- if (usb_keyboard_leds&(1<<USB_LED_CAPS_LOCK))
- leds |= (1<<PS2_LED_CAPS_LOCK);
-
- _ps2_set_leds(leds);
- prev_leds = usb_keyboard_leds;
- }
-
return 1;
}
bool matrix_is_modified(void)
{
- return _matrix_is_modified;
+ return is_modified;
}
inline
inline
-static void _matrix_make(uint8_t code)
+static void matrix_make(uint8_t code)
{
- if (!matrix_is_on(_ROW(code), _COL(code))) {
- matrix[_ROW(code)] |= 1<<_COL(code);
- _matrix_is_modified = true;
+ if (!matrix_is_on(ROW(code), COL(code))) {
+ matrix[ROW(code)] |= 1<<COL(code);
+ is_modified = true;
}
}
inline
-static void _matrix_break(uint8_t code)
+static void matrix_break(uint8_t code)
{
- if (matrix_is_on(_ROW(code), _COL(code))) {
- matrix[_ROW(code)] &= ~(1<<_COL(code));
- _matrix_is_modified = true;
+ if (matrix_is_on(ROW(code), COL(code))) {
+ matrix[ROW(code)] &= ~(1<<COL(code));
+ is_modified = true;
}
}
-
-static void _ps2_reset(void)
-{
- ps2_host_send(0xFF);
- ps2_host_recv(); // 0xFA
- ps2_host_recv(); // 0xAA
- _delay_ms(1000);
-}
-
-static void _ps2_set_leds(uint8_t leds)
-{
- ps2_host_send(0xED);
- ps2_host_recv(); // 0xFA
- ps2_host_send(leds);
- ps2_host_recv(); // 0xFA
-}
projects / max / tmk_keyboard.git / blobdiff