diff options
Diffstat (limited to 'keyboard/hhkb_rn42')
| -rw-r--r-- | keyboard/hhkb_rn42/hhkb_avr.h | 5 | ||||
| -rw-r--r-- | keyboard/hhkb_rn42/matrix.c | 28 | ||||
| -rw-r--r-- | keyboard/hhkb_rn42/rn42/main.c | 2 |
3 files changed, 29 insertions, 6 deletions
diff --git a/keyboard/hhkb_rn42/hhkb_avr.h b/keyboard/hhkb_rn42/hhkb_avr.h index 313effedfe..f007d7667a 100644 --- a/keyboard/hhkb_rn42/hhkb_avr.h +++ b/keyboard/hhkb_rn42/hhkb_avr.h @@ -43,11 +43,10 @@ static inline void KEY_PREV_ON(void) { (PORTB |= (1<<7)); } static inline void KEY_PREV_OFF(void) { (PORTB &= ~(1<<7)); } #ifdef HHKB_POWER_SAVING static inline void KEY_POWER_ON(void) { - _delay_ms(10); // TODO: sleep to save power DDRB = 0xFF; PORTB = 0x40; // change pins output DDRD |= (1<<4); PORTD |= (1<<4); // MOS FET switch on /* Without this wait you will miss or get false key events. */ - _delay_ms(1); // wait for powering up + _delay_ms(5); // wait for powering up } static inline void KEY_POWER_OFF(void) { /* input with pull-up consumes less than without it when pin is open. */ @@ -74,7 +73,7 @@ static inline void KEY_INIT(void) KEY_UNABLE(); KEY_PREV_OFF(); - KEY_POWER_OFF(); + KEY_POWER_ON(); } static inline void KEY_SELECT(uint8_t ROW, uint8_t COL) { diff --git a/keyboard/hhkb_rn42/matrix.c b/keyboard/hhkb_rn42/matrix.c index b0af4baa52..c6c444ff52 100644 --- a/keyboard/hhkb_rn42/matrix.c +++ b/keyboard/hhkb_rn42/matrix.c @@ -27,8 +27,16 @@ along with this program. If not, see <http://www.gnu.org/licenses/>. #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; +static bool matrix_power = true; + // matrix state buffer(1:on, 0:off) static matrix_row_t *matrix; static matrix_row_t *matrix_prev; @@ -72,7 +80,7 @@ uint8_t matrix_scan(void) matrix_prev = matrix; matrix = tmp; - KEY_POWER_ON(); + matrix_power_up(); for (uint8_t row = 0; row < MATRIX_ROWS; row++) { for (uint8_t col = 0; col < MATRIX_COLS; col++) { KEY_SELECT(row, col); @@ -126,8 +134,9 @@ uint8_t matrix_scan(void) // This takes 25us or more to make sure KEY_STATE returns to idle state. _delay_us(75); } + if (matrix[row] ^ matrix_prev[row]) matrix_last_modified = timer_read32(); } - KEY_POWER_OFF(); + matrix_power_down(); return 1; } @@ -165,3 +174,18 @@ void matrix_print(void) xprintf("%02X: %08b\n", row, bitrev(matrix_get_row(row))); } } + +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_Configured) return; + if (timer_elapsed32(matrix_last_modified) <= MATRIX_POWER_SAVE) return; + KEY_POWER_OFF(); + suspend_power_down(WDTO_15MS); + matrix_power = false; +} diff --git a/keyboard/hhkb_rn42/rn42/main.c b/keyboard/hhkb_rn42/rn42/main.c index a3a37c0747..43d887067d 100644 --- a/keyboard/hhkb_rn42/rn42/main.c +++ b/keyboard/hhkb_rn42/rn42/main.c @@ -85,7 +85,7 @@ int main(void) print("Keyboard start.\n"); while (1) { while (USB_DeviceState == DEVICE_STATE_Suspended) { - suspend_power_down(); + suspend_power_down(WDTO_120MS); if (USB_Device_RemoteWakeupEnabled && suspend_wakeup_condition()) { USB_Device_SendRemoteWakeup(); } |