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authorJack Humbert <jack.humb@gmail.com>2016-07-05 23:27:10 -0400
committerJack Humbert <jack.humb@gmail.com>2016-07-05 23:27:10 -0400
commitd707738616c140f8d9c8eded7b64e5fc806f4b24 (patch)
treef8aaebebb526903bb49283aa9fa53242c4bf793b /keyboards/lets_split
parent96f44e120295e677d21d3dbb9dc4bf642ba2af09 (diff)
i2c working
Diffstat (limited to 'keyboards/lets_split')
-rw-r--r--keyboards/lets_split/Makefile77
-rw-r--r--keyboards/lets_split/config.h93
-rw-r--r--keyboards/lets_split/i2c.c159
-rw-r--r--keyboards/lets_split/i2c.h31
-rw-r--r--keyboards/lets_split/keymaps/default/keymap.c42
-rw-r--r--keyboards/lets_split/lets_split.c48
-rw-r--r--keyboards/lets_split/lets_split.h21
-rw-r--r--keyboards/lets_split/matrix.c310
-rw-r--r--keyboards/lets_split/pro_micro.h362
-rw-r--r--keyboards/lets_split/readme.md0
-rw-r--r--keyboards/lets_split/split_util.c67
-rw-r--r--keyboards/lets_split/split_util.h20
-rw-r--r--keyboards/lets_split/uno-slave/Makefile226
-rw-r--r--keyboards/lets_split/uno-slave/keyboard-i2c-slave.c42
-rw-r--r--keyboards/lets_split/uno-slave/readme.md1
-rw-r--r--keyboards/lets_split/uno-slave/uno-matrix.c160
-rw-r--r--keyboards/lets_split/uno-slave/uno-matrix.h19
-rw-r--r--keyboards/lets_split/usbconfig.h377
18 files changed, 2055 insertions, 0 deletions
diff --git a/keyboards/lets_split/Makefile b/keyboards/lets_split/Makefile
new file mode 100644
index 0000000000..d8e283896e
--- /dev/null
+++ b/keyboards/lets_split/Makefile
@@ -0,0 +1,77 @@
+SRC += matrix.c \
+ i2c.c \
+ split_util.c
+
+# 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 ?= yes # Commands for debug and configuration
+NKRO_ENABLE ?= no # 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 ?= yes # Audio output on port C6
+UNICODE_ENABLE ?= no # Unicode
+BLUETOOTH_ENABLE ?= no # Enable Bluetooth with the Adafruit EZ-Key HID
+RGBLIGHT_ENABLE ?= no # Enable WS2812 RGB underlight. Do not enable this with audio at the same time.
+
+# Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
+SLEEP_LED_ENABLE ?= no # Breathing sleep LED during USB suspend
+
+CUSTOM_MATRIX = yes
+
+ifndef QUANTUM_DIR
+ include ../../Makefile
+endif \ No newline at end of file
diff --git a/keyboards/lets_split/config.h b/keyboards/lets_split/config.h
new file mode 100644
index 0000000000..e68787e0b5
--- /dev/null
+++ b/keyboards/lets_split/config.h
@@ -0,0 +1,93 @@
+/*
+Copyright 2012 Jun Wako <wakojun@gmail.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef CONFIG_H
+#define CONFIG_H
+
+#include "config_common.h"
+
+/* USB Device descriptor parameter */
+#define VENDOR_ID 0xFEED
+#define PRODUCT_ID 0x3060
+#define DEVICE_VER 0x0001
+#define MANUFACTURER Wootpatoot
+#define PRODUCT Lets Split
+#define DESCRIPTION A split keyboard for the cheap makers
+
+/* key matrix size */
+#define MATRIX_ROWS 8
+#define MATRIX_COLS 6
+
+// wiring of each half
+#define MATRIX_ROW_PINS { B5, B4, E6, D7 }
+#define MATRIX_COL_PINS { F4, F5, F6, F7, B1, B3 }
+
+#define USE_I2C
+
+// #define I2C_MASTER_LEFT
+#define I2C_MASTER_RIGHT
+
+/* COL2ROW or ROW2COL */
+#define DIODE_DIRECTION COL2ROW
+
+/* define if matrix has ghost */
+//#define MATRIX_HAS_GHOST
+
+/* number of backlight levels */
+#define BACKLIGHT_LEVELS 3
+
+/* Set 0 if debouncing isn't needed */
+#define DEBOUNCING_DELAY 5
+
+/* Mechanical locking support. Use KC_LCAP, KC_LNUM or KC_LSCR instead in keymap */
+#define LOCKING_SUPPORT_ENABLE
+/* Locking resynchronize hack */
+#define LOCKING_RESYNC_ENABLE
+
+/* key combination for command */
+#define IS_COMMAND() ( \
+ keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)) \
+)
+
+/* ws2812 RGB LED */
+#define ws2812_PORTREG PORTD
+#define ws2812_DDRREG DDRD
+#define ws2812_pin PD1
+#define RGBLED_NUM 28 // Number of LEDs
+#define RGBLIGHT_HUE_STEP 10
+#define RGBLIGHT_SAT_STEP 17
+#define RGBLIGHT_VAL_STEP 17
+
+/*
+ * Feature disable options
+ * These options are also useful to firmware size reduction.
+ */
+
+/* disable debug print */
+// #define NO_DEBUG
+
+/* disable print */
+// #define NO_PRINT
+
+/* disable action features */
+//#define NO_ACTION_LAYER
+//#define NO_ACTION_TAPPING
+//#define NO_ACTION_ONESHOT
+//#define NO_ACTION_MACRO
+//#define NO_ACTION_FUNCTION
+
+#endif \ No newline at end of file
diff --git a/keyboards/lets_split/i2c.c b/keyboards/lets_split/i2c.c
new file mode 100644
index 0000000000..c72789403e
--- /dev/null
+++ b/keyboards/lets_split/i2c.c
@@ -0,0 +1,159 @@
+#include <util/twi.h>
+#include <avr/io.h>
+#include <stdlib.h>
+#include <avr/interrupt.h>
+#include <util/twi.h>
+#include <stdbool.h>
+#include "i2c.h"
+
+// Limits the amount of we wait for any one i2c transaction.
+// Since were running SCL line 100kHz (=> 10μs/bit), and each transactions is
+// 9 bits, a single transaction will take around 90μs to complete.
+//
+// (F_CPU/SCL_CLOCK) => # of μC cycles to transfer a bit
+// poll loop takes at least 8 clock cycles to execute
+#define I2C_LOOP_TIMEOUT (9+1)*(F_CPU/SCL_CLOCK)/8
+
+#define BUFFER_POS_INC() (slave_buffer_pos = (slave_buffer_pos+1)%SLAVE_BUFFER_SIZE)
+
+volatile uint8_t i2c_slave_buffer[SLAVE_BUFFER_SIZE];
+
+static volatile uint8_t slave_buffer_pos;
+static volatile bool slave_has_register_set = false;
+
+// Wait for an i2c operation to finish
+inline static
+void i2c_delay(void) {
+ uint16_t lim = 0;
+ while(!(TWCR & (1<<TWINT)) && lim < I2C_LOOP_TIMEOUT)
+ lim++;
+
+ // easier way, but will wait slightly longer
+ // _delay_us(100);
+}
+
+// Setup twi to run at 100kHz
+void i2c_master_init(void) {
+ // no prescaler
+ TWSR = 0;
+ // Set TWI clock frequency to SCL_CLOCK. Need TWBR>10.
+ // Check datasheets for more info.
+ TWBR = ((F_CPU/SCL_CLOCK)-16)/2;
+}
+
+// Start a transaction with the given i2c slave address. The direction of the
+// transfer is set with I2C_READ and I2C_WRITE.
+// returns: 0 => success
+// 1 => error
+uint8_t i2c_master_start(uint8_t address) {
+ TWCR = (1<<TWINT) | (1<<TWEN) | (1<<TWSTA);
+
+ i2c_delay();
+
+ // check that we started successfully
+ if ( (TW_STATUS != TW_START) && (TW_STATUS != TW_REP_START))
+ return 1;
+
+ TWDR = address;
+ TWCR = (1<<TWINT) | (1<<TWEN);
+
+ i2c_delay();
+
+ if ( (TW_STATUS != TW_MT_SLA_ACK) && (TW_STATUS != TW_MR_SLA_ACK) )
+ return 1; // slave did not acknowledge
+ else
+ return 0; // success
+}
+
+
+// Finish the i2c transaction.
+void i2c_master_stop(void) {
+ TWCR = (1<<TWINT) | (1<<TWEN) | (1<<TWSTO);
+
+ uint16_t lim = 0;
+ while(!(TWCR & (1<<TWSTO)) && lim < I2C_LOOP_TIMEOUT)
+ lim++;
+}
+
+// Write one byte to the i2c slave.
+// returns 0 => slave ACK
+// 1 => slave NACK
+uint8_t i2c_master_write(uint8_t data) {
+ TWDR = data;
+ TWCR = (1<<TWINT) | (1<<TWEN);
+
+ i2c_delay();
+
+ // check if the slave acknowledged us
+ return (TW_STATUS == TW_MT_DATA_ACK) ? 0 : 1;
+}
+
+// Read one byte from the i2c slave. If ack=1 the slave is acknowledged,
+// if ack=0 the acknowledge bit is not set.
+// returns: byte read from i2c device
+uint8_t i2c_master_read(int ack) {
+ TWCR = (1<<TWINT) | (1<<TWEN) | (ack<<TWEA);
+
+ i2c_delay();
+ return TWDR;
+}
+
+void i2c_reset_state(void) {
+ TWCR = 0;
+}
+
+void i2c_slave_init(uint8_t address) {
+ TWAR = address << 0; // slave i2c address
+ // TWEN - twi enable
+ // TWEA - enable address acknowledgement
+ // TWINT - twi interrupt flag
+ // TWIE - enable the twi interrupt
+ TWCR = (1<<TWIE) | (1<<TWEA) | (1<<TWINT) | (1<<TWEN);
+}
+
+ISR(TWI_vect);
+
+ISR(TWI_vect) {
+ uint8_t ack = 1;
+ switch(TW_STATUS) {
+ case TW_SR_SLA_ACK:
+ // this device has been addressed as a slave receiver
+ slave_has_register_set = false;
+ break;
+
+ case TW_SR_DATA_ACK:
+ // this device has received data as a slave receiver
+ // The first byte that we receive in this transaction sets the location
+ // of the read/write location of the slaves memory that it exposes over
+ // i2c. After that, bytes will be written at slave_buffer_pos, incrementing
+ // slave_buffer_pos after each write.
+ if(!slave_has_register_set) {
+ slave_buffer_pos = TWDR;
+ // don't acknowledge the master if this memory loctaion is out of bounds
+ if ( slave_buffer_pos >= SLAVE_BUFFER_SIZE ) {
+ ack = 0;
+ slave_buffer_pos = 0;
+ }
+ slave_has_register_set = true;
+ } else {
+ i2c_slave_buffer[slave_buffer_pos] = TWDR;
+ BUFFER_POS_INC();
+ }
+ break;
+
+ case TW_ST_SLA_ACK:
+ case TW_ST_DATA_ACK:
+ // master has addressed this device as a slave transmitter and is
+ // requesting data.
+ TWDR = i2c_slave_buffer[slave_buffer_pos];
+ BUFFER_POS_INC();
+ break;
+
+ case TW_BUS_ERROR: // something went wrong, reset twi state
+ TWCR = 0;
+ default:
+ break;
+ }
+ // Reset everything, so we are ready for the next TWI interrupt
+ TWCR |= (1<<TWIE) | (1<<TWINT) | (ack<<TWEA) | (1<<TWEN);
+}
diff --git a/keyboards/lets_split/i2c.h b/keyboards/lets_split/i2c.h
new file mode 100644
index 0000000000..08ce4b0093
--- /dev/null
+++ b/keyboards/lets_split/i2c.h
@@ -0,0 +1,31 @@
+#ifndef I2C_H
+#define I2C_H
+
+#include <stdint.h>
+
+#ifndef F_CPU
+#define F_CPU 16000000UL
+#endif
+
+#define I2C_READ 1
+#define I2C_WRITE 0
+
+#define I2C_ACK 1
+#define I2C_NACK 0
+
+#define SLAVE_BUFFER_SIZE 0x10
+
+// i2c SCL clock frequency
+#define SCL_CLOCK 100000L
+
+extern volatile uint8_t i2c_slave_buffer[SLAVE_BUFFER_SIZE];
+
+void i2c_master_init(void);
+uint8_t i2c_master_start(uint8_t address);
+void i2c_master_stop(void);
+uint8_t i2c_master_write(uint8_t data);
+uint8_t i2c_master_read(int);
+void i2c_reset_state(void);
+void i2c_slave_init(uint8_t address);
+
+#endif
diff --git a/keyboards/lets_split/keymaps/default/keymap.c b/keyboards/lets_split/keymaps/default/keymap.c
new file mode 100644
index 0000000000..01e3593c22
--- /dev/null
+++ b/keyboards/lets_split/keymaps/default/keymap.c
@@ -0,0 +1,42 @@
+#include "lets_split.h"
+#include "action_layer.h"
+
+#define BASE 0
+
+enum preonic_keycodes {
+ KC_IDK = SAFE_RANGE,
+ PM_RESET
+};
+
+// Fillers to make layering more clear
+#define _______ KC_TRNS
+#define XXXXXXX KC_NO
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+[BASE] = KEYMAP(
+ KC_TAB, KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_BSPC, \
+ KC_ESC, KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN, KC_QUOT, \
+ KC_LSFT, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, KC_SLSH, KC_ENT, \
+ KC_IDK, KC_LCTL, KC_LALT, KC_LGUI, PM_RESET,KC_SPC, KC_SPC, PM_RESET,KC_LEFT, KC_DOWN, KC_UP, KC_RGHT \
+)
+
+};
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+ switch (keycode) {
+ case KC_IDK:
+ if (record->event.pressed) {
+ SEND_STRING("IDK. ");
+ }
+ return false;
+ break;
+ case PM_RESET:
+ if (record->event.pressed) {
+ promicro_bootloader_jmp(true);
+ }
+ return false;
+ break;
+ }
+ return true;
+}; \ No newline at end of file
diff --git a/keyboards/lets_split/lets_split.c b/keyboards/lets_split/lets_split.c
new file mode 100644
index 0000000000..1859dc20a7
--- /dev/null
+++ b/keyboards/lets_split/lets_split.c
@@ -0,0 +1,48 @@
+#include "lets_split.h"
+
+#ifdef AUDIO_ENABLE
+ float tone_startup[][2] = SONG(STARTUP_SOUND);
+ float tone_goodbye[][2] = SONG(GOODBYE_SOUND);
+#endif
+
+void matrix_init_kb(void) {
+
+ #ifdef AUDIO_ENABLE
+ _delay_ms(20); // gets rid of tick
+ PLAY_NOTE_ARRAY(tone_startup, false, 0);
+ #endif
+
+ // // green led on
+ // DDRD |= (1<<5);
+ // PORTD &= ~(1<<5);
+
+ // // orange led on
+ // DDRB |= (1<<0);
+ // PORTB &= ~(1<<0);
+
+ matrix_init_user();
+};
+
+void promicro_bootloader_jmp(bool program) {
+
+ #ifdef AUDIO_ENABLE
+ PLAY_NOTE_ARRAY(tone_goodbye, false, 0);
+ _delay_ms(150);
+ stop_all_notes();
+ #endif
+
+ uint16_t *const bootKeyPtr = (uint16_t *)0x0800;
+
+ // Value used by Caterina bootloader use to determine whether to run the
+ // sketch or the bootloader programmer.
+ uint16_t bootKey = program ? 0x7777 : 0;
+
+ *bootKeyPtr = bootKey;
+
+ // setup watchdog timeout
+ wdt_enable(WDTO_60MS);
+
+ while(1) {} // wait for watchdog timer to trigger
+}
+
+
diff --git a/keyboards/lets_split/lets_split.h b/keyboards/lets_split/lets_split.h
new file mode 100644
index 0000000000..e59aed5921
--- /dev/null
+++ b/keyboards/lets_split/lets_split.h
@@ -0,0 +1,21 @@
+#include "quantum.h"
+#include <avr/wdt.h>
+
+void promicro_bootloader_jmp(bool program);
+
+#define KEYMAP( \
+ k00, k01, k02, k03, k04, k05, k40, k41, k42, k43, k44, k45, \
+ k10, k11, k12, k13, k14, k15, k50, k51, k52, k53, k54, k55, \
+ k20, k21, k22, k23, k24, k25, k60, k61, k62, k63, k64, k65, \
+ k30, k31, k32, k33, k34, k35, k70, k71, k72, k73, k74, k75 \
+ ) \
+ { \
+ { k00, k01, k02, k03, k04, k05 }, \
+ { k10, k11, k12, k13, k14, k15 }, \
+ { k20, k21, k22, k23, k24, k25 }, \
+ { k30, k31, k32, k33, k34, k35 }, \
+ { k40, k41, k42, k43, k44, k45 }, \
+ { k50, k51, k52, k53, k54, k55 }, \
+ { k60, k61, k62, k63, k64, k65 }, \
+ { k70, k71, k72, k73, k74, k75 } \
+ } \ No newline at end of file
diff --git a/keyboards/lets_split/matrix.c b/keyboards/lets_split/matrix.c
new file mode 100644
index 0000000000..16c2ba0bad
--- /dev/null
+++ b/keyboards/lets_split/matrix.c
@@ -0,0 +1,310 @@
+/*
+Copyright 2012 Jun Wako <wakojun@gmail.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should 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 <avr/io.h>
+#include <avr/wdt.h>
+#include <avr/interrupt.h>
+#include <util/delay.h>
+#include "print.h"
+#include "debug.h"
+#include "util.h"
+#include "matrix.h"
+#include "i2c.h"
+#include "split_util.h"
+#include "pro_micro.h"
+#include "config.h"
+
+#ifndef DEBOUNCE
+# define DEBOUNCE 5
+#endif
+
+#define ERROR_DISCONNECT_COUNT 5
+
+static uint8_t debouncing = DEBOUNCE;
+static const int ROWS_PER_HAND = MATRIX_ROWS/2;
+static uint8_t error_count = 0;
+
+static const uint8_t row_pins[MATRIX_ROWS] = MATRIX_ROW_PINS;
+static const uint8_t col_pins[MATRIX_COLS] = MATRIX_COL_PINS;
+
+/* matrix state(1:on, 0:off) */
+static matrix_row_t matrix[MATRIX_ROWS];
+static matrix_row_t matrix_debouncing[MATRIX_ROWS];
+
+static matrix_row_t read_cols(void);
+static void init_cols(void);
+static void unselect_rows(void);
+static void select_row(uint8_t row);
+
+__attribute__ ((weak))
+void matrix_init_quantum(void) {
+ matrix_init_kb();
+}
+
+__attribute__ ((weak))
+void matrix_scan_quantum(void) {
+ matrix_scan_kb();
+}
+
+__attribute__ ((weak))
+void matrix_init_kb(void) {
+ matrix_init_user();
+}
+
+__attribute__ ((weak))
+void matrix_scan_kb(void) {
+ matrix_scan_user();
+}
+
+__attribute__ ((weak))
+void matrix_init_user(void) {
+}
+
+__attribute__ ((weak))
+void matrix_scan_user(void) {
+}
+
+inline
+uint8_t matrix_rows(void)
+{
+ return MATRIX_ROWS;
+}
+
+inline
+uint8_t matrix_cols(void)
+{
+ return MATRIX_COLS;
+}
+
+void matrix_init(void)
+{
+ debug_enable = true;
+ debug_matrix = true;
+ debug_mouse = true;
+ // initialize row and col
+ unselect_rows();
+ init_cols();
+
+ TX_RX_LED_INIT;
+
+ // initialize matrix state: all keys off
+ for (uint8_t i=0; i < MATRIX_ROWS; i++) {
+ matrix[i] = 0;
+ matrix_debouncing[i] = 0;
+ }
+
+ matrix_init_quantum();
+}
+
+uint8_t _matrix_scan(void)
+{
+ // Right hand is stored after the left in the matirx so, we need to offset it
+ int offset = isLeftHand ? 0 : (ROWS_PER_HAND);
+
+ for (uint8_t i = 0; i < ROWS_PER_HAND; i++) {
+ select_row(i);
+ _delay_us(30); // without this wait read unstable value.
+ matrix_row_t cols = read_cols();
+ if (matrix_debouncing[i+offset] != cols) {
+ matrix_debouncing[i+offset] = cols;
+ debouncing = DEBOUNCE;
+ }
+ unselect_rows();
+ }
+
+ if (debouncing) {
+ if (--debouncing) {
+ _delay_ms(1);
+ } else {
+ for (uint8_t i = 0; i < ROWS_PER_HAND; i++) {
+ matrix[i+offset] = matrix_debouncing[i+offset];
+ }
+ }
+ }
+
+ return 1;
+}
+
+// Get rows from other half over i2c
+int i2c_transaction(void) {
+ int slaveOffset = (isLeftHand) ? (ROWS_PER_HAND) : 0;
+
+ int err = i2c_master_start(SLAVE_I2C_ADDRESS + I2C_WRITE);
+ if (err) goto i2c_error;
+
+ // start of matrix stored at 0x00
+ err = i2c_master_write(0x00);
+ if (err) goto i2c_error;
+
+ // Start read
+ err = i2c_master_start(SLAVE_I2C_ADDRESS + I2C_READ);
+ if (err) goto i2c_error;
+
+ if (!err) {
+ int i;
+ for (i = 0; i < ROWS_PER_HAND-1; ++i) {
+ matrix[slaveOffset+i] = i2c_master_read(I2C_ACK);
+ }
+ matrix[slaveOffset+i] = i2c_master_read(I2C_NACK);
+ i2c_master_stop();
+ } else {
+i2c_error: // the cable is disconnceted, or something else went wrong
+ i2c_reset_state();
+ return err;
+ }
+
+ return 0;
+}
+
+#ifndef USE_I2C
+int serial_transaction(void) {
+ int slaveOffset = (isLeftHand) ? (ROWS_PER_HAND) : 0;
+
+ if (serial_update_buffers()) {
+ return 1;
+ }
+
+ for (int i = 0; i < ROWS_PER_HAND; ++i) {
+ matrix[slaveOffset+i] = serial_slave_buffer[i];
+ }
+ return 0;
+}
+#endif
+
+uint8_t matrix_scan(void)
+{
+ int ret = _matrix_scan();
+
+
+
+#ifdef USE_I2C
+ if( i2c_transaction() ) {
+#else
+ if( serial_transaction() ) {
+#endif
+ // turn on the indicator led when halves are disconnected
+ TXLED1;
+
+ error_count++;
+
+ if (error_count > ERROR_DISCONNECT_COUNT) {
+ // reset other half if disconnected
+ int slaveOffset = (isLeftHand) ? (ROWS_PER_HAND) : 0;
+ for (int i = 0; i < ROWS_PER_HAND; ++i) {
+ matrix[slaveOffset+i] = 0;
+ }
+ }
+ } else {
+ // turn off the indicator led on no error
+ TXLED0;
+ error_count = 0;
+ }
+
+ matrix_scan_quantum();
+
+ return ret;
+}
+
+void matrix_slave_scan(void) {
+ _matrix_scan();
+
+ int offset = (isLeftHand) ? 0 : (MATRIX_ROWS / 2);
+
+#ifdef USE_I2C
+ for (int i = 0; i < ROWS_PER_HAND; ++i) {
+ /* i2c_slave_buffer[i] = matrix[offset+i]; */
+ i2c_slave_buffer[i] = matrix[offset+i];
+ }
+#else
+ for (int i = 0; i < ROWS_PER_HAND; ++i) {
+ serial_slave_buffer[i] = matrix[offset+i];
+ }
+#endif
+}
+
+bool matrix_is_modified(void)
+{
+ if (debouncing) return false;
+ return true;
+}
+
+inline
+bool matrix_is_on(uint8_t row, uint8_t col)
+{
+ return (matrix[row] & ((matrix_row_t)1<<col));
+}
+
+inline
+matrix_row_t matrix_get_row(uint8_t row)
+{
+ return matrix[row];
+}
+
+void matrix_print(void)
+{
+ print("\nr/c 0123456789ABCDEF\n");
+ for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
+ phex(row); print(": ");
+ pbin_reverse16(matrix_get_row(row));
+ print("\n");
+ }
+}
+
+uint8_t matrix_key_count(void)
+{
+ uint8_t count = 0;
+ for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
+ count += bitpop16(matrix[i]);
+ }
+ return count;
+}
+
+static void init_cols(void)
+{
+ for(int x = 0; x < MATRIX_COLS; x++) {
+ _SFR_IO8((col_pins[x] >> 4) + 1) &= ~_BV(col_pins[x] & 0xF);
+ _SFR_IO8((col_pins[x] >> 4) + 2) |= _BV(col_pins[x] & 0xF);
+ }
+}
+
+static matrix_row_t read_cols(void)
+{
+ matrix_row_t result = 0;
+ for(int x = 0; x < MATRIX_COLS; x++) {
+ result |= (_SFR_IO8(col_pins[x] >> 4) & _BV(col_pins[x] & 0xF)) ? 0 : (1 << x);
+ }
+ return result;
+}
+
+static void unselect_rows(void)
+{
+ for(int x = 0; x < ROWS_PER_HAND; x++) {
+ _SFR_IO8((row_pins[x] >> 4) + 1) &= ~_BV(row_pins[x] & 0xF);
+ _SFR_IO8((row_pins[x] >> 4) + 2) |= _BV(row_pins[x] & 0xF);
+ }
+}
+
+static void select_row(uint8_t row)
+{
+ _SFR_IO8((row_pins[row] >> 4) + 1) |= _BV(row_pins[row] & 0xF);
+ _SFR_IO8((row_pins[row] >> 4) + 2) &= ~_BV(row_pins[row] & 0xF);
+}
diff --git a/keyboards/lets_split/pro_micro.h b/keyboards/lets_split/pro_micro.h
new file mode 100644
index 0000000000..09e219b7b1
--- /dev/null
+++ b/keyboards/lets_split/pro_micro.h
@@ -0,0 +1,362 @@
+/*
+ pins_arduino.h - Pin definition functions for Arduino
+ Part of Arduino - http://www.arduino.cc/
+
+ Copyright (c) 2007 David A. Mellis
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General
+ Public License along with this library; if not, write to the
+ Free Software Foundation, Inc., 59 Temple Place, Suite 330,
+ Boston, MA 02111-1307 USA
+
+ $Id: wiring.h 249 2007-02-03 16:52:51Z mellis $
+*/
+
+#ifndef Pins_Arduino_h
+#define Pins_Arduino_h
+
+#include <avr/pgmspace.h>
+
+// Workaround for wrong definitions in "iom32u4.h".
+// This should be fixed in the AVR toolchain.
+#undef UHCON
+#undef UHINT
+#undef UHIEN
+#undef UHADDR
+#undef UHFNUM
+#undef UHFNUML
+#undef UHFNUMH
+#undef UHFLEN
+#undef UPINRQX
+#undef UPINTX
+#undef UPNUM
+#undef UPRST
+#undef UPCONX
+#undef UPCFG0X
+#undef UPCFG1X
+#undef UPSTAX
+#undef UPCFG2X
+#undef UPIENX
+#undef UPDATX
+#undef TCCR2A
+#undef WGM20
+#undef WGM21
+#undef COM2B0
+#undef COM2B1
+#undef COM2A0
+#undef COM2A1
+#undef TCCR2B
+#undef CS20
+#undef CS21
+#undef CS22
+#undef WGM22
+#undef FOC2B
+#undef FOC2A
+#undef TCNT2
+#undef TCNT2_0
+#undef TCNT2_1
+#undef TCNT2_2
+#undef TCNT2_3
+#undef TCNT2_4
+#undef TCNT2_5
+#undef TCNT2_6
+#undef TCNT2_7
+#undef OCR2A
+#undef OCR2_0
+#undef OCR2_1
+#undef OCR2_2
+#undef OCR2_3
+#undef OCR2_4
+#undef OCR2_5
+#undef OCR2_6
+#undef OCR2_7
+#undef OCR2B
+#undef OCR2_0
+#undef OCR2_1
+#undef OCR2_2
+#undef OCR2_3
+#undef OCR2_4
+#undef OCR2_5
+#undef OCR2_6
+#undef OCR2_7
+
+#define NUM_DIGITAL_PINS 30
+#define NUM_ANALOG_INPUTS 12
+
+#define TX_RX_LED_INIT DDRD |= (1<<5), DDRB |= (1<<0)
+#define TXLED0 PORTD |= (1<<5)
+#define TXLED1 PORTD &= ~(1<<5)
+#define RXLED0 PORTB |= (1<<0)
+#define RXLED1 PORTB &= ~(1<<0)
+
+static const uint8_t SDA = 2;
+static const uint8_t SCL = 3;
+#define LED_BUILTIN 13
+
+// Map SPI port to 'new' pins D14..D17
+static const uint8_t SS = 17;
+static const uint8_t MOSI = 16;
+static const uint8_t MISO = 14;
+static const uint8_t SCK = 15;
+
+// Mapping of analog pins as digital I/O
+// A6-A11 share with digital pins
+static const uint8_t A0 = 18;
+static const uint8_t A1 = 19;
+static const uint8_t A2 = 20;
+static const uint8_t A3 = 21;
+static const uint8_t A4 = 22;
+static const uint8_t A5 = 23;
+static const uint8_t A6 = 24; // D4
+static const uint8_t A7 = 25; // D6
+static const uint8_t A8 = 26; // D8
+static const uint8_t A9 = 27; // D9
+static const uint8_t A10 = 28; // D10
+static const uint8_t A11 = 29; // D12
+
+#define digitalPinToPCICR(p) ((((p) >= 8 && (p) <= 11) || ((p) >= 14 && (p) <= 17) || ((p) >= A8 && (p) <= A10)) ? (&PCICR) : ((uint8_t *)0))
+#define digitalPinToPCICRbit(p) 0
+#define digitalPinToPCMSK(p) ((((p) >= 8 && (p) <= 11) || ((p) >= 14 && (p) <= 17) || ((p) >= A8 && (p) <= A10)) ? (&PCMSK0) : ((uint8_t *)0))
+#define digitalPinToPCMSKbit(p) ( ((p) >= 8 && (p) <= 11) ? (p) - 4 : ((p) == 14 ? 3 : ((p) == 15 ? 1 : ((p) == 16 ? 2 : ((p) == 17 ? 0 : (p - A8 + 4))))))
+
+// __AVR_ATmega32U4__ has an unusual mapping of pins to channels
+extern const uint8_t PROGMEM analog_pin_to_channel_PGM[];
+#define analogPinToChannel(P) ( pgm_read_byte( analog_pin_to_channel_PGM + (P) ) )
+
+#define digitalPinToInterrupt(p) ((p) == 0 ? 2 : ((p) == 1 ? 3 : ((p) == 2 ? 1 : ((p) == 3 ? 0 : ((p) == 7 ? 4 : NOT_AN_INTERRUPT)))))
+
+#ifdef ARDUINO_MAIN
+
+// On the Arduino board, digital pins are also used
+// for the analog output (software PWM). Analog input
+// pins are a separate set.
+
+// ATMEL ATMEGA32U4 / ARDUINO LEONARDO
+//
+// D0 PD2 RXD1/INT2
+// D1 PD3 TXD1/INT3
+// D2 PD1 SDA SDA/INT1
+// D3# PD0 PWM8/SCL OC0B/SCL/INT0
+// D4 A6 PD4 ADC8
+// D5# PC6 ??? OC3A/#OC4A
+// D6# A7 PD7 FastPWM #OC4D/ADC10
+// D7 PE6 INT6/AIN0
+//
+// D8 A8 PB4 ADC11/PCINT4
+// D9# A9 PB5 PWM16 OC1A/#OC4B/ADC12/PCINT5
+// D10# A10 PB6 PWM16 OC1B/0c4B/ADC13/PCINT6
+// D11# PB7 PWM8/16 0C0A/OC1C/#RTS/PCINT7
+// D12 A11 PD6 T1/#OC4D/ADC9
+// D13# PC7 PWM10 CLK0/OC4A
+//
+// A0 D18 PF7 ADC7
+// A1 D19 PF6 ADC6
+// A2 D20 PF5 ADC5
+// A3 D21 PF4 ADC4
+// A4 D22 PF1 ADC1
+// A5 D23 PF0 ADC0
+//
+// New pins D14..D17 to map SPI port to digital pins
+//
+// MISO D14 PB3 MISO,PCINT3
+// SCK D15 PB1 SCK,PCINT1
+// MOSI D16 PB2 MOSI,PCINT2
+// SS D17 PB0 RXLED,SS/PCINT0
+//
+// Connected LEDs on board for TX and RX
+// TXLED D24 PD5 XCK1
+// RXLED D17 PB0
+// HWB