Fix power saving while USB suspended
- doesn't pwoer save while Bluetooth turns on
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86f82dd02d
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ebe4373258
@ -53,9 +53,11 @@ static inline void KEY_POWER_OFF(void) {
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DDRB = 0x00; PORTB = 0xFF; // change pins input with pull-up
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DDRD |= (1<<4); PORTD &= ~(1<<4); // MOS FET switch off
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}
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static inline bool KEY_POWER_STATE(void) { return PORTD & (1<<4); }
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#else
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static inline void KEY_POWER_ON(void) {}
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static inline void KEY_POWER_OFF(void) {}
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static inline bool KEY_POWER_STATE(void) { return true; }
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#endif
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static inline void KEY_INIT(void)
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{
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@ -73,7 +75,7 @@ static inline void KEY_INIT(void)
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KEY_UNABLE();
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KEY_PREV_OFF();
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KEY_POWER_ON();
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KEY_POWER_OFF();
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}
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static inline void KEY_SELECT(uint8_t ROW, uint8_t COL)
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{
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@ -35,7 +35,6 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
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// matrix power saving
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#define MATRIX_POWER_SAVE 10000
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static uint32_t matrix_last_modified = 0;
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static bool matrix_power = true;
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// matrix state buffer(1:on, 0:off)
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static matrix_row_t *matrix;
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@ -80,7 +79,8 @@ uint8_t matrix_scan(void)
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matrix_prev = matrix;
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matrix = tmp;
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matrix_power_up();
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// power on
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if (!KEY_POWER_STATE()) KEY_POWER_ON();
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for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
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for (uint8_t col = 0; col < MATRIX_COLS; col++) {
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KEY_SELECT(row, col);
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@ -136,7 +136,14 @@ uint8_t matrix_scan(void)
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}
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if (matrix[row] ^ matrix_prev[row]) matrix_last_modified = timer_read32();
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}
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matrix_power_down();
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// power off
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if (KEY_POWER_STATE() &&
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(USB_DeviceState == DEVICE_STATE_Suspended ||
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USB_DeviceState == DEVICE_STATE_Unattached ) &&
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timer_elapsed32(matrix_last_modified) > MATRIX_POWER_SAVE) {
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KEY_POWER_OFF();
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suspend_power_down();
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}
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return 1;
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}
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@ -176,16 +183,8 @@ void matrix_print(void)
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}
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void matrix_power_up(void) {
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if (matrix_power) return;
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KEY_POWER_ON();
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matrix_power = true;
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}
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void matrix_power_down(void) {
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if (!matrix_power) return;
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// doesn't power save while USB connection is active
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if (USB_DeviceState != DEVICE_STATE_Unattached) return;
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if (timer_elapsed32(matrix_last_modified) <= MATRIX_POWER_SAVE) return;
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KEY_POWER_OFF();
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suspend_power_down();
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matrix_power = false;
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}
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@ -63,7 +63,7 @@ int main(void)
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USB_USBTask();
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#endif
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}
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print("USB configured.\n");
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print("\nUSB init\n");
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rn42_init();
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rn42_task_init();
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@ -82,10 +82,18 @@ int main(void)
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sleep_led_init();
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#endif
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print("Keyboard start.\n");
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print("Keyboard start\n");
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while (1) {
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while (USB_DeviceState == DEVICE_STATE_Suspended) {
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while (rn42_rts() && // RN42 is off
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USB_DeviceState == DEVICE_STATE_Suspended) {
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print("[s]");
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matrix_power_down();
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suspend_power_down();
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suspend_power_down();
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suspend_power_down();
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suspend_power_down();
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suspend_power_down();
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suspend_power_down();
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suspend_power_down();
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if (USB_Device_RemoteWakeupEnabled && suspend_wakeup_condition()) {
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USB_Device_SendRemoteWakeup();
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@ -151,6 +151,7 @@ void EVENT_USB_Device_Connect(void)
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print("[C]");
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/* For battery powered device */
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if (!USB_IsInitialized) {
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USB_Disable();
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USB_Init();
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USB_Device_EnableSOFEvents();
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}
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@ -160,6 +161,7 @@ void EVENT_USB_Device_Disconnect(void)
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{
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print("[D]");
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/* For battery powered device */
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USB_IsInitialized = false;
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/* TODO: This doesn't work. After several plug in/outs can not be enumerated.
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if (USB_IsInitialized) {
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USB_Disable(); // Disable all interrupts
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@ -177,6 +179,7 @@ void EVENT_USB_Device_Reset(void)
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void EVENT_USB_Device_Suspend()
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{
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print("[S]");
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matrix_power_down();
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#ifdef SLEEP_LED_ENABLE
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sleep_led_enable();
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#endif
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