#include "timer.h"
#include "matrix.h"
#include "hhkb_avr.h"
+#include <avr/wdt.h>
+#include "suspend.h"
+#include "lufa.h"
+// matrix power saving
+#define MATRIX_POWER_SAVE 10000
+static uint32_t matrix_last_modified = 0;
+
// matrix state buffer(1:on, 0:off)
static matrix_row_t *matrix;
static matrix_row_t *matrix_prev;
matrix_prev = matrix;
matrix = tmp;
- KEY_POWER_ON();
+ // power on
+ if (!KEY_POWER_STATE()) KEY_POWER_ON();
for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
for (uint8_t col = 0; col < MATRIX_COLS; col++) {
KEY_SELECT(row, col);
// NOTE: KEY_STATE keep its state in 20us after KEY_ENABLE.
// This takes 25us or more to make sure KEY_STATE returns to idle state.
+#ifdef HHKB_JP
+ // Looks like JP needs faster scan due to its twice larger matrix
+ // or it can drop keys in fast key typing
+ _delay_us(30);
+#else
_delay_us(75);
+#endif
}
+ if (matrix[row] ^ matrix_prev[row]) matrix_last_modified = timer_read32();
+ }
+ // power off
+ if (KEY_POWER_STATE() &&
+ (USB_DeviceState == DEVICE_STATE_Suspended ||
+ USB_DeviceState == DEVICE_STATE_Unattached ) &&
+ timer_elapsed32(matrix_last_modified) > MATRIX_POWER_SAVE) {
+ KEY_POWER_OFF();
+ suspend_power_down();
}
- KEY_POWER_OFF();
return 1;
}
xprintf("%02X: %08b\n", row, bitrev(matrix_get_row(row)));
}
}
+
+void matrix_power_up(void) {
+ KEY_POWER_ON();
+}
+void matrix_power_down(void) {
+ KEY_POWER_OFF();
+}