*/
#include <stdint.h>
#include <stdbool.h>
-#include <avr/io.h>
-#include <avr/interrupt.h>
#include <util/delay.h>
#include "print.h"
#include "debug.h"
#include "util.h"
#include "timer.h"
#include "matrix.h"
+#include "hhkb_avr.h"
+#include <avr/wdt.h>
+#include "suspend.h"
+#include "lufa.h"
-// Timer resolution check
-#if (1000000/TIMER_RAW_FREQ > 20)
-# error "Timer resolution(>20us) is not enough for HHKB matrix scan tweak on V-USB."
-#endif
-
+// 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 _matrix1[MATRIX_ROWS];
-// Matrix I/O ports
-//
-// row: HC4051[A,B,C] selects scan row0-7
-// col: LS145[A,B,C,D] selects scan col0-7 and enable(D)
-// key: on: 0/off: 1
-// prev: unknown: output previous key state(negated)?
-
-#if defined(__AVR_AT90USB1286__)
-// Ports for Teensy++
-// row: PB0-2
-// col: PB3-5,6
-// key: PE6(pull-uped)
-// prev: PE7
-#define KEY_INIT() do { \
- DDRB |= 0x7F; \
- DDRE |= (1<<7); \
- DDRE &= ~(1<<6); \
- PORTE |= (1<<6); \
-} while (0)
-#define KEY_SELECT(ROW, COL) (PORTB = (PORTB & 0xC0) | \
- (((COL) & 0x07)<<3) | \
- ((ROW) & 0x07))
-#define KEY_ENABLE() (PORTB &= ~(1<<6))
-#define KEY_UNABLE() (PORTB |= (1<<6))
-#define KEY_STATE() (PINE & (1<<6))
-#define KEY_PREV_ON() (PORTE |= (1<<7))
-#define KEY_PREV_OFF() (PORTE &= ~(1<<7))
-#define KEY_POWER_ON()
-#define KEY_POWER_OFF()
-
-#elif defined(__AVR_ATmega32U4__)
-// Ports for my designed Alt Controller PCB
-// row: PB0-2
-// col: PB3-5,6
-// key: PD7(pull-uped)
-// prev: PB7
-// power: PD4(L:off/H:on)
-#define KEY_INIT() do { \
- DDRB = 0xFF; \
- PORTB = 0x00; \
- DDRD &= ~0x80; \
- PORTD |= 0x80; \
- /* keyswitch board power on */ \
- DDRD |= (1<<4); \
- PORTD |= (1<<4); \
- KEY_UNABLE(); \
- KEY_PREV_OFF(); \
-} while (0)
-#define KEY_SELECT(ROW, COL) (PORTB = (PORTB & 0xC0) | \
- (((COL) & 0x07)<<3) | \
- ((ROW) & 0x07))
-#define KEY_ENABLE() (PORTB &= ~(1<<6))
-#define KEY_UNABLE() (PORTB |= (1<<6))
-#define KEY_STATE() (PIND & (1<<7))
-#define KEY_PREV_ON() (PORTB |= (1<<7))
-#define KEY_PREV_OFF() (PORTB &= ~(1<<7))
-#define KEY_POWER_ON()
-#define KEY_POWER_OFF()
-/*
-#define KEY_POWER_ON() do { \
- KEY_INIT(); \
- PORTD |= (1<<4); \
- _delay_ms(1); \
-} while (0)
-#define KEY_POWER_OFF() do { \
- PORTD &= ~(1<<4); \
- DDRB &= ~0xFF; \
- PORTB &= ~0xFF; \
- DDRB &= ~0x80; \
- PORTB &= ~0x80; \
-} while (0)
-*/
-
-
-#elif defined(__AVR_ATmega328P__)
-// Ports for V-USB
-// key: PB0(pull-uped)
-// prev: PB1
-// row: PB2-4
-// col: PC0-2,3
-// power: PB5(Low:on/Hi-z:off)
-#define KEY_INIT() do { \
- DDRB |= 0x3E; \
- DDRB &= ~(1<<0); \
- PORTB |= 1<<0; \
- DDRC |= 0x0F; \
- KEY_UNABLE(); \
- KEY_PREV_OFF(); \
-} while (0)
-#define KEY_SELECT(ROW, COL) do { \
- PORTB = (PORTB & 0xE3) | ((ROW) & 0x07)<<2; \
- PORTC = (PORTC & 0xF8) | ((COL) & 0x07); \
-} while (0)
-#define KEY_ENABLE() (PORTC &= ~(1<<3))
-#define KEY_UNABLE() (PORTC |= (1<<3))
-#define KEY_STATE() (PINB & (1<<0))
-#define KEY_PREV_ON() (PORTB |= (1<<1))
-#define KEY_PREV_OFF() (PORTB &= ~(1<<1))
-// Power supply switching
-#define KEY_POWER_ON() do { \
- KEY_INIT(); \
- PORTB &= ~(1<<5); \
- _delay_ms(1); \
-} while (0)
-#define KEY_POWER_OFF() do { \
- DDRB &= ~0x3F; \
- PORTB &= ~0x3F; \
- DDRC &= ~0x0F; \
- PORTC &= ~0x0F; \
-} while (0)
-
-#else
-# error "define code for matrix scan"
-#endif
-
-
inline
uint8_t matrix_rows(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);
- _delay_us(40);
+ _delay_us(5);
// Not sure this is needed. This just emulates HHKB controller's behaviour.
if (matrix_prev[row] & (1<<col)) {
KEY_PREV_ON();
}
- _delay_us(7);
+ _delay_us(10);
// NOTE: KEY_STATE is valid only in 20us after KEY_ENABLE.
// If V-USB interrupts in this section we could lose 40us or so
matrix[row] = matrix_prev[row];
}
+ _delay_us(5);
KEY_PREV_OFF();
KEY_UNABLE();
+
// 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.
- _delay_us(150);
+ _delay_us(75);
}
+ if (matrix[row] ^ matrix_prev[row]) matrix_last_modified = timer_read32();
}
- KEY_POWER_OFF();
+ matrix_power_down();
return 1;
}
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;
+}
projects / tmk_firmware.git / blobdiff