Matrix power saving

[tmk_firmware.git] / common / keyboard.c

diff --git a/common/keyboard.c b/common/keyboard.c
index 2e32e91e089dff66adce01edf83b3a04d1d0d19b..dde91a29689c9ae827807e44e2c412093f4081a9 100644 (file)
--- a/common/keyboard.c
+++ b/common/keyboard.c
@@ -1,5 +1,5 @@
 /*
-Copyright 2011,2012 Jun Wako <wakojun@gmail.com>
+Copyright 2011,2012,2013 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
@@ -14,6 +14,9 @@ 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/>.
 */
+#include <stdint.h>
+#include <util/delay.h>
+#include <avr/wdt.h>
 #include "keyboard.h"
 #include "matrix.h"
 #include "keymap.h"
@@ -26,23 +29,52 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include "command.h"
 #include "util.h"
 #include "sendchar.h"
+#include "bootmagic.h"
+#include "eeconfig.h"
+#include "backlight.h"
+#include "suspend.h"
 #ifdef MOUSEKEY_ENABLE
-#include "mousekey.h"
+#   include "mousekey.h"
 #endif
+#ifdef PS2_MOUSE_ENABLE
+#   include "ps2_mouse.h"
+#endif
+#include "lufa.h"
 
 
-void keyboard_init(void)
+#ifdef MATRIX_HAS_GHOST
+static bool has_ghost_in_row(uint8_t row)
 {
-    // TODO: to enable debug print magic key bind on boot time
+    matrix_row_t matrix_row = matrix_get_row(row);
+    // No ghost exists when less than 2 keys are down on the row
+    if (((matrix_row - 1) & matrix_row) == 0)
+        return false;
+
+    // Ghost occurs when the row shares column line with other row
+    for (uint8_t i=0; i < MATRIX_ROWS; i++) {
+        if (i != row && (matrix_get_row(i) & matrix_row))
+            return true;
+    }
+    return false;
+}
+#endif
 
-    // TODO: configuration of sendchar impl
-    print_sendchar_func = sendchar;
 
+void keyboard_init(void)
+{
     timer_init();
     matrix_init();
 #ifdef PS2_MOUSE_ENABLE
     ps2_mouse_init();
 #endif
+
+#ifdef BOOTMAGIC_ENABLE
+    bootmagic();
+#endif
+
+#ifdef BACKLIGHT_ENABLE
+    backlight_init();
+#endif
 }
 
 /*
@@ -55,35 +87,55 @@ void keyboard_task(void)
     static uint8_t led_status = 0;
     matrix_row_t matrix_row = 0;
     matrix_row_t matrix_change = 0;
+    static uint32_t last_key_time = 0;
 
+/*
+#define SLEEP_TIME_MS 10000
+    // (USB_DeviceState == DEVICE_STATE_Suspended) {
+    //if (timer_elapsed32(last_key_time) > SLEEP_TIME_MS) {
+    // TODO: remove LUFA dependent code
+    if (!USB_IsInitialized && timer_elapsed32(last_key_time) > SLEEP_TIME_MS) {
+        matrix_power_down();
+        // TODO: power down only when no USB connection
+        // Or it makes USB connection lost or suspended
+        suspend_power_down(WDTO_15MS);
+        matrix_power_up();
+    }
+    else {
+        matrix_power_down();
+        matrix_power_up();
+    }
+*/
     matrix_scan();
-    for (int r = 0; r < MATRIX_ROWS; r++) {
+    for (uint8_t r = 0; r < MATRIX_ROWS; r++) {
         matrix_row = matrix_get_row(r);
         matrix_change = matrix_row ^ matrix_prev[r];
         if (matrix_change) {
             if (debug_matrix) matrix_print();
-
-            for (int c = 0; c < MATRIX_COLS; c++) {
-                if (matrix_change & (1<<c)) {
+#ifdef MATRIX_HAS_GHOST
+            if (has_ghost_in_row(r)) {
+                matrix_prev[r] = matrix_row;
+                continue;
+            }
+#endif
+            for (uint8_t c = 0; c < MATRIX_COLS; c++) {
+                if (matrix_change & ((matrix_row_t)1<<c)) {
                     action_exec((keyevent_t){
                         .key = (keypos_t){ .row = r, .col = c },
-                        .pressed = (matrix_row & (1<<c)),
-                        .time = (timer_read() | 1) /* NOTE: 0 means no event */
+                        .pressed = (matrix_row & ((matrix_row_t)1<<c)),
+                        .time = (timer_read() | 1) /* time should not be 0 */
                     });
                     // record a processed key
-                    matrix_prev[r] ^= (1<<c);
+                    matrix_prev[r] ^= ((matrix_row_t)1<<c);
+                    last_key_time = timer_read32();
                     // process a key per task call
                     goto MATRIX_LOOP_END;
                 }
             }
         }
     }
-    // call to update delaying layer when no real event
-    action_exec((keyevent_t) {
-        .key = (keypos_t){ .row = 255, .col = 255 }, // assume this key doesn't exist
-        .pressed = false,
-        .time = 0,
-    });
+    // call with pseudo tick event when no real key event.
+    action_exec(TICK);
 
 MATRIX_LOOP_END:
 
@@ -92,16 +144,19 @@ MATRIX_LOOP_END:
     mousekey_task();
 #endif
 
+#ifdef PS2_MOUSE_ENABLE
+    ps2_mouse_task();
+#endif
+
     // update LED
     if (led_status != host_keyboard_leds()) {
         led_status = host_keyboard_leds();
         keyboard_set_leds(led_status);
     }
-
-    return;
 }
 
 void keyboard_set_leds(uint8_t leds)
 {
+    if (debug_keyboard) { debug("keyboard_set_led: "); debug_hex8(leds); debug("\n"); }
     led_set(leds);
 }