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# MCU name
#MCU = at90usb1287
MCU = atmega32u4

# Processor frequency.
#     This will define a symbol, F_CPU, in all source code files equal to the
#     processor frequency in Hz. You can then use this symbol in your source code to
#     calculate timings. Do NOT tack on a 'UL' at the end, this will be done
#     automatically to create a 32-bit value in your source code.
#
#     This will be an integer division of F_USB below, as it is sourced by
#     F_USB after it has run through any CPU prescalers. Note that this value
#     does not *change* the processor frequency - it should merely be updated to
#     reflect the processor speed set externally so that the code can use accurate
#     software delays.
F_CPU = 16000000

#
# LUFA specific
#
# Target architecture (see library "Board Types" documentation).
ARCH = AVR8

# Input clock frequency.
#     This will define a symbol, F_USB, in all source code files equal to the
#     input clock frequency (before any prescaling is performed) in Hz. This value may
#     differ from F_CPU if prescaling is used on the latter, and is required as the
#     raw input clock is fed directly to the PLL sections of the AVR for high speed
#     clock generation for the USB and other AVR subsections. Do NOT tack on a 'UL'
#     at the end, this will be done automatically to create a 32-bit value in your
#     source code.
#
#     If no clock division is performed on the input clock inside the AVR (via the
#     CPU clock adjust registers or the clock division fuses), this will be equal to F_CPU.
F_USB = $(F_CPU)

# Interrupt driven control endpoint task(+60)
OPT_DEFS += -DINTERRUPT_CONTROL_ENDPOINT


# Boot Section Size in *bytes*
#   Teensy halfKay   512
#   Teensy++ halfKay 1024
#   Atmel DFU loader 4096
#   LUFA bootloader  4096
#   USBaspLoader     2048
OPT_DEFS += -DBOOTLOADER_SIZE=4096

# Build Options
#   change to "no" to disable the options, or define them in the Makefile in 
#   the appropriate keymap folder that will get included automatically
#
BOOTMAGIC_ENABLE = no       # Virtual DIP switch configuration(+1000)
MOUSEKEY_ENABLE = yes       # Mouse keys(+4700)
EXTRAKEY_ENABLE = yes       # Audio control and System control(+450)
CONSOLE_ENABLE = no         # Console for debug(+400)
COMMAND_ENABLE = no        # Commands for debug and configuration
NKRO_ENABLE = yes            # Nkey Rollover - if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
BACKLIGHT_ENABLE = no      # Enable keyboard backlight functionality
MIDI_ENABLE = no            # MIDI controls
AUDIO_ENABLE = no           # Audio output on port C6
UNICODE_ENABLE = yes         # Unicode
BLUETOOTH_ENABLE = no       # Enable Bluetooth with the Adafruit EZ-Key HID
RGBLIGHT_ENABLE = no        # Enable WS2812 RGB underlight.
API_SYSEX_ENABLE = yes
TAP_DANCE_ENABLE = yes

# Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
SLEEP_LED_ENABLE = no    # Breathing sleep LED during USB suspend
have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ /* * scan matrix */ #include <stdint.h> #include <stdbool.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" // 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; static matrix_row_t _matrix0[MATRIX_ROWS]; static matrix_row_t _matrix1[MATRIX_ROWS]; inline uint8_t matrix_rows(void) { return MATRIX_ROWS; } inline uint8_t matrix_cols(void) { return MATRIX_COLS; } void matrix_init(void) { #ifdef DEBUG debug_enable = true; debug_keyboard = true; #endif KEY_INIT(); // initialize matrix state: all keys off for (uint8_t i=0; i < MATRIX_ROWS; i++) _matrix0[i] = 0x00; for (uint8_t i=0; i < MATRIX_ROWS; i++) _matrix1[i] = 0x00; matrix = _matrix0; matrix_prev = _matrix1; } __attribute__ ((weak)) void matrix_scan_user(void) { } void matrix_scan_kb(void) { matrix_scan_user(); } uint8_t matrix_scan(void) { uint8_t *tmp; tmp = matrix_prev; matrix_prev = matrix; matrix = tmp; // 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); _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(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 // and would read invalid value from KEY_STATE. uint8_t last = TIMER_RAW; KEY_ENABLE(); // Wait for KEY_STATE outputs its value. // 1us was ok on one HHKB, but not worked on another. // no wait doesn't work on Teensy++ with pro(1us works) // no wait does work on tmk PCB(8MHz) with pro2 // 1us wait does work on both of above // 1us wait doesn't work on tmk(16MHz) // 5us wait does work on tmk(16MHz) // 5us wait does work on tmk(16MHz/2) // 5us wait does work on tmk(8MHz) // 10us wait does work on Teensy++ with pro // 10us wait does work on 328p+iwrap with pro // 10us wait doesn't work on tmk PCB(8MHz) with pro2(very lagged scan) _delay_us(5); if (KEY_STATE()) { matrix[row] &= ~(1<<col); } else { matrix[row] |= (1<<col); } // Ignore if this code region execution time elapses more than 20us. // MEMO: 20[us] * (TIMER_RAW_FREQ / 1000000)[count per us] // MEMO: then change above using this rule: a/(b/c) = a*1/(b/c) = a*(c/b) if (TIMER_DIFF_RAW(TIMER_RAW, last) > 20/(1000000/TIMER_RAW_FREQ)) { 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. #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(); } matrix_scan_quantum(); return 1; } bool matrix_is_modified(void) { for (uint8_t i = 0; i < MATRIX_ROWS; i++) { if (matrix[i] != matrix_prev[i]) return true; } return false; } inline bool matrix_has_ghost(void) { return false; } inline bool matrix_is_on(uint8_t row, uint8_t col) { return (matrix[row] & (1<<col)); } inline matrix_row_t matrix_get_row(uint8_t row) { return matrix[row]; } void matrix_print(void) { print("\nr/c 01234567\n"); for (uint8_t row = 0; row < matrix_rows(); row++) { xprintf("%02X: %08b\n", row, bitrev(matrix_get_row(row))); } } uint8_t matrix_key_count(void) { uint8_t count = 0; for (int8_t r = MATRIX_ROWS - 1; r >= 0; --r) { count += bitpop16(matrix_get_row(r)); } return count; } void matrix_power_up(void) { KEY_POWER_ON(); } void matrix_power_down(void) { KEY_POWER_OFF(); }