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Fix power saving while USB suspended

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- doesn't pwoer save while Bluetooth turns on
This commit is contained in:
tmk 2014-12-03 15:50:02 +09:00
parent 86f82dd02d
commit ebe4373258
4 changed files with 27 additions and 15 deletions
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4
keyboard/hhkb_rn42/hhkb_avr.h
View File

@ -53,9 +53,11 @@ static inline void KEY_POWER_OFF(void) {
DDRB = 0x00; PORTB = 0xFF; // change pins input with pull-up
DDRD |= (1<<4); PORTD &= ~(1<<4); // MOS FET switch off
}
static inline bool KEY_POWER_STATE(void) { return PORTD & (1<<4); }
#else
static inline void KEY_POWER_ON(void) {}
static inline void KEY_POWER_OFF(void) {}
static inline bool KEY_POWER_STATE(void) { return true; }
#endif
static inline void KEY_INIT(void)
{
@ -73,7 +75,7 @@ static inline void KEY_INIT(void)
KEY_UNABLE();
KEY_PREV_OFF();
KEY_POWER_ON();
KEY_POWER_OFF();
}
static inline void KEY_SELECT(uint8_t ROW, uint8_t COL)
{

21
keyboard/hhkb_rn42/matrix.c
View File

@ -35,7 +35,6 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
// matrix power saving
#define MATRIX_POWER_SAVE 10000
static uint32_t matrix_last_modified = 0;
static bool matrix_power = true;
// matrix state buffer(1:on, 0:off)
static matrix_row_t *matrix;
@ -80,7 +79,8 @@ uint8_t matrix_scan(void)
matrix_prev = matrix;
matrix = tmp;
matrix_power_up();
// 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);
@ -136,7 +136,14 @@ uint8_t matrix_scan(void)
}
if (matrix[row] ^ matrix_prev[row]) matrix_last_modified = timer_read32();
}
matrix_power_down();
// 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();
}
return 1;
}
@ -176,16 +183,8 @@ void matrix_print(void)
}
void matrix_power_up(void) {
if (matrix_power) return;
KEY_POWER_ON();
matrix_power = true;
}
void matrix_power_down(void) {
if (!matrix_power) return;
// doesn't power save while USB connection is active
if (USB_DeviceState != DEVICE_STATE_Unattached) return;
if (timer_elapsed32(matrix_last_modified) <= MATRIX_POWER_SAVE) return;
KEY_POWER_OFF();
suspend_power_down();
matrix_power = false;
}

14
keyboard/hhkb_rn42/rn42/main.c
View File

@ -63,7 +63,7 @@ int main(void)
USB_USBTask();
#endif
}
print("USB configured.\n");
print("\nUSB init\n");
rn42_init();
rn42_task_init();
@ -82,10 +82,18 @@ int main(void)
sleep_led_init();
#endif
print("Keyboard start.\n");
print("Keyboard start\n");
while (1) {
while (USB_DeviceState == DEVICE_STATE_Suspended) {
while (rn42_rts() && // RN42 is off
USB_DeviceState == DEVICE_STATE_Suspended) {
print("[s]");
matrix_power_down();
suspend_power_down();
suspend_power_down();
suspend_power_down();
suspend_power_down();
suspend_power_down();
suspend_power_down();
suspend_power_down();
if (USB_Device_RemoteWakeupEnabled && suspend_wakeup_condition()) {
USB_Device_SendRemoteWakeup();

3
protocol/lufa/lufa.c
View File

@ -151,6 +151,7 @@ void EVENT_USB_Device_Connect(void)
print("[C]");
/* For battery powered device */
if (!USB_IsInitialized) {
USB_Disable();
USB_Init();
USB_Device_EnableSOFEvents();
}
@ -160,6 +161,7 @@ void EVENT_USB_Device_Disconnect(void)
{
print("[D]");
/* For battery powered device */
USB_IsInitialized = false;
/* TODO: This doesn't work. After several plug in/outs can not be enumerated.
if (USB_IsInitialized) {
USB_Disable(); // Disable all interrupts
@ -177,6 +179,7 @@ void EVENT_USB_Device_Reset(void)
void EVENT_USB_Device_Suspend()
{
print("[S]");
matrix_power_down();
#ifdef SLEEP_LED_ENABLE
sleep_led_enable();
#endif