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+/* Copyright 2020 Christopher Courtney, aka Drashna Jael're (@drashna) <drashna@live.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/>.
+ */
+
+#include <string.h>
+#include <stddef.h>
+
+#include "matrix.h"
+#include QMK_KEYBOARD_H
+
+#define ROWS_PER_HAND (MATRIX_ROWS / 2)
+
+#ifdef RGBLIGHT_ENABLE
+# include "rgblight.h"
+#endif
+
+#ifdef BACKLIGHT_ENABLE
+# include "backlight.h"
+#endif
+
+#ifdef ENCODER_ENABLE
+# include "encoder.h"
+static pin_t encoders_pad[] = ENCODERS_PAD_A;
+# define NUMBER_OF_ENCODERS (sizeof(encoders_pad) / sizeof(pin_t))
+#endif
+
+#ifdef POINTING_DEVICE_ENABLE
+static int8_t split_mouse_x = 0, split_mouse_y = 0;
+#endif
+
+#ifdef OLED_DRIVER_ENABLE
+# include "oled_driver.h"
+#endif
+
+#if defined(USE_I2C)
+
+# include "i2c_master.h"
+# include "i2c_slave.h"
+
+typedef struct _I2C_slave_buffer_t {
+ matrix_row_t smatrix[ROWS_PER_HAND];
+# ifdef SPLIT_MODS_ENABLE
+ uint8_t real_mods;
+ uint8_t weak_mods;
+# ifndef NO_ACTION_ONESHOT
+ uint8_t oneshot_mods;
+# endif
+# endif
+# ifdef BACKLIGHT_ENABLE
+ uint8_t backlight_level;
+# endif
+# if defined(RGBLIGHT_ENABLE) && defined(RGBLIGHT_SPLIT)
+ rgblight_syncinfo_t rgblight_sync;
+# endif
+# ifdef ENCODER_ENABLE
+ uint8_t encoder_state[NUMBER_OF_ENCODERS];
+# endif
+# ifdef WPM_ENABLE
+ uint8_t current_wpm;
+# endif
+ int8_t mouse_x;
+ int8_t mouse_y;
+ bool oled_on;
+ layer_state_t t_layer_state;
+ layer_state_t t_default_layer_state;
+ bool is_rgb_matrix_suspended;
+} __attribute__((packed)) I2C_slave_buffer_t;
+
+static I2C_slave_buffer_t *const i2c_buffer = (I2C_slave_buffer_t *)i2c_slave_reg;
+
+# define I2C_BACKLIGHT_START offsetof(I2C_slave_buffer_t, backlight_level)
+# define I2C_RGB_START offsetof(I2C_slave_buffer_t, rgblight_sync)
+# define I2C_KEYMAP_START offsetof(I2C_slave_buffer_t, smatrix)
+# define I2C_REAL_MODS_START offsetof(I2C_slave_buffer_t, real_mods)
+# define I2C_WEAK_MODS_START offsetof(I2C_slave_buffer_t, weak_mods)
+# define I2C_ONESHOT_MODS_START offsetof(I2C_slave_buffer_t, oneshot_mods)
+# define I2C_ENCODER_START offsetof(I2C_slave_buffer_t, encoder_state)
+# define I2C_WPM_START offsetof(I2C_slave_buffer_t, current_wpm)
+# define I2C_MOUSE_X_START offsetof(I2C_slave_buffer_t, mouse_x)
+# define I2C_MOUSE_Y_START offsetof(I2C_slave_buffer_t, mouse_y)
+# define I2C_OLED_ON_START offsetof(I2C_slave_buffer_t, oled_on)
+# define I2C_LAYER_STATE_START offsetof(I2C_slave_buffer_t, t_layer_state)
+# define I2C_DEFAULT_LAYER_STATE_START offsetof(I2C_slave_buffer_t, t_default_layer_state)
+# define I2C_RGB_MATRIX_SUSPEND_START offsetof(I2C_slave_buffer_t, is_rgb_matrix_suspended)
+
+# define TIMEOUT 100
+
+# ifndef SLAVE_I2C_ADDRESS
+# define SLAVE_I2C_ADDRESS 0x32
+# endif
+
+// Get rows from other half over i2c
+bool transport_master(matrix_row_t matrix[]) {
+ i2c_readReg(SLAVE_I2C_ADDRESS, I2C_KEYMAP_START, (void *)matrix, sizeof(i2c_buffer->smatrix), TIMEOUT);
+
+ // write backlight info
+# ifdef BACKLIGHT_ENABLE
+ uint8_t level = is_backlight_enabled() ? get_backlight_level() : 0;
+ if (level != i2c_buffer->backlight_level) {
+ if (i2c_writeReg(SLAVE_I2C_ADDRESS, I2C_BACKLIGHT_START, (void *)&level, sizeof(level), TIMEOUT) >= 0) {
+ i2c_buffer->backlight_level = level;
+ }
+ }
+# endif
+
+# if defined(RGBLIGHT_ENABLE) && defined(RGBLIGHT_SPLIT)
+ if (rgblight_get_change_flags()) {
+ rgblight_syncinfo_t rgblight_sync;
+ rgblight_get_syncinfo(&rgblight_sync);
+ if (i2c_writeReg(SLAVE_I2C_ADDRESS, I2C_RGB_START, (void *)&rgblight_sync, sizeof(rgblight_sync), TIMEOUT) >= 0) {
+ rgblight_clear_change_flags();
+ }
+ }
+# endif
+
+# ifdef ENCODER_ENABLE
+ i2c_readReg(SLAVE_I2C_ADDRESS, I2C_ENCODER_START, (void *)i2c_buffer->encoder_state, sizeof(i2c_buffer->encoder_state), TIMEOUT);
+ encoder_update_raw(i2c_buffer->encoder_state);
+# endif
+
+# ifdef WPM_ENABLE
+ uint8_t current_wpm = get_current_wpm();
+ if (current_wpm != i2c_buffer->current_wpm) {
+ if (i2c_writeReg(SLAVE_I2C_ADDRESS, I2C_WPM_START, (void *)&current_wpm, sizeof(current_wpm), TIMEOUT) >= 0) {
+ i2c_buffer->current_wpm = current_wpm;
+ }
+ }
+# endif
+
+# ifdef POINTING_DEVICE_ENABLE
+ if (is_keyboard_left()) {
+ report_mouse_t temp_report = pointing_device_get_report();
+ i2c_readReg(SLAVE_I2C_ADDRESS, I2C_MOUSE_X_START, (void *)&i2c_buffer->mouse_x, sizeof(i2c_buffer->mouse_x), TIMEOUT);
+ temp_report.x = i2c_buffer->mouse_x;
+ i2c_readReg(SLAVE_I2C_ADDRESS, I2C_MOUSE_Y_START, (void *)&i2c_buffer->mouse_y, sizeof(i2c_buffer->mouse_y), TIMEOUT);
+ temp_report.y = i2c_buffer->mouse_y;
+ pointing_device_set_report(temp_report);
+ }
+# endif
+
+# ifdef SPLIT_MODS_ENABLE
+ uint8_t real_mods = get_mods();
+ if (real_mods != i2c_buffer->real_mods) {
+ if (i2c_writeReg(SLAVE_I2C_ADDRESS, I2C_REAL_MODS_START, (void *)&real_mods, sizeof(real_mods), TIMEOUT) >= 0) {
+ i2c_buffer->real_mods = real_mods;
+ }
+ }
+
+ uint8_t weak_mods = get_weak_mods();
+ if (weak_mods != i2c_buffer->weak_mods) {
+ if (i2c_writeReg(SLAVE_I2C_ADDRESS, I2C_WEAK_MODS_START, (void *)&weak_mods, sizeof(weak_mods), TIMEOUT) >= 0) {
+ i2c_buffer->weak_mods = weak_mods;
+ }
+ }
+
+# ifndef NO_ACTION_ONESHOT
+ uint8_t oneshot_mods = get_oneshot_mods();
+ if (oneshot_mods != i2c_buffer->oneshot_mods) {
+ if (i2c_writeReg(SLAVE_I2C_ADDRESS, I2C_ONESHOT_MODS_START, (void *)&oneshot_mods, sizeof(oneshot_mods), TIMEOUT) >= 0) {
+ i2c_buffer->oneshot_mods = oneshot_mods;
+ }
+ }
+# endif
+# endif
+
+ if (layer_state != i2c_buffer->t_layer_state) {
+ if (i2c_writeReg(SLAVE_I2C_ADDRESS, I2C_LAYER_STATE_START, (void *)&layer_state, sizeof(layer_state), TIMEOUT) >= 0) {
+ i2c_buffer->t_layer_state = layer_state;
+ }
+ }
+
+ if (default_layer_state != i2c_buffer->t_default_layer_state) {
+ if (i2c_writeReg(SLAVE_I2C_ADDRESS, I2C_DEFAULT_LAYER_STATE_START, (void *)&default_layer_state, sizeof(default_layer_state), TIMEOUT) >= 0) {
+ i2c_buffer->t_default_layer_state = default_layer_state;
+ }
+ }
+
+# ifdef OLED_DRIVER_ENABLE
+ bool is_oled = is_oled_on();
+ if (is_oled != i2c_buffer->oled_on) {
+ if (i2c_writeReg(SLAVE_I2C_ADDRESS, I2C_LAYER_STATE_START, (void *)&is_oled, sizeof(is_oled), TIMEOUT) >= 0) {
+ i2c_buffer->oled_on = is_oled;
+ }
+ }
+# endif
+
+# ifdef RGB_MATRIX_ENABLE
+ bool sus_state = rgb_matrix_get_suspend_state();
+ if (sus_state != i2c_buffer->is_rgb_matrix_suspended) {
+ if (i2c_writeReg(SLAVE_I2C_ADDRESS, I2C_RGB_MATRIX_SUSPEND_START, (void *)&sus_state, sizeof(sus_state), TIMEOUT) >= 0) {
+ i2c_buffer->is_rgb_matrix_suspended = sus_state;
+ }
+ }
+# endif
+
+ return true;
+}
+
+void transport_slave(matrix_row_t matrix[]) {
+ // Copy matrix to I2C buffer
+ memcpy((void *)i2c_buffer->smatrix, (void *)matrix, sizeof(i2c_buffer->smatrix));
+
+// Read Backlight Info
+# ifdef BACKLIGHT_ENABLE
+ backlight_set(i2c_buffer->backlight_level);
+# endif
+
+# if defined(RGBLIGHT_ENABLE) && defined(RGBLIGHT_SPLIT)
+ // Update the RGB with the new data
+ if (i2c_buffer->rgblight_sync.status.change_flags != 0) {
+ rgblight_update_sync(&i2c_buffer->rgblight_sync, false);
+ i2c_buffer->rgblight_sync.status.change_flags = 0;
+ }
+# endif
+
+# ifdef ENCODER_ENABLE
+ encoder_state_raw(i2c_buffer->encoder_state);
+# endif
+
+# ifdef WPM_ENABLE
+ set_current_wpm(i2c_buffer->current_wpm);
+# endif
+
+# ifdef POINTING_DEVICE_ENABLE
+ if (!is_keyboard_left()) {
+ i2c_buffer->mouse_x = split_mouse_x;
+ i2c_writeReg(SLAVE_I2C_ADDRESS, I2C_MOUSE_X_START, (void *)&i2c_buffer->mouse_x, sizeof(i2c_buffer->mouse_x), TIMEOUT);
+ i2c_buffer->mouse_y = split_mouse_y;
+ i2c_writeReg(SLAVE_I2C_ADDRESS, I2C_MOUSE_Y_START, (void *)&i2c_buffer->mouse_y, sizeof(i2c_buffer->mouse_y), TIMEOUT);
+ }
+
+# endif
+
+# ifdef SPLIT_MODS_ENABLE
+ set_mods(i2c_buffer->real_mods);
+ set_weak_mods(i2c_buffer->weak_mods);
+# ifndef NO_ACTION_ONESHOT
+ set_oneshot_mods(i2c_buffer->oneshot_mods);
+# endif
+# endif
+
+ if (layer_state != i2c_buffer->t_layer_state) {
+ layer_state = i2c_buffer->t_layer_state;
+ }
+ if (default_layer_state != i2c_buffer->t_default_layer_state) {
+ default_layer_state = i2c_buffer->t_default_layer_state;
+ }
+
+# ifdef OLED_DRIVER_ENABLE
+ if (i2c_buffer->oled_on) {
+ oled_on();
+ } else {
+ oled_off();
+ }
+# endif
+
+# ifdef RGB_MATRIX_ENABLE
+ rgb_matrix_set_suspend_state(i2c_buffer->is_rgb_matrix_suspended);
+# endif
+}
+
+void transport_master_init(void) { i2c_init(); }
+
+void transport_slave_init(void) { i2c_slave_init(SLAVE_I2C_ADDRESS); }
+
+#else // USE_SERIAL
+
+# include "serial.h"
+
+typedef struct _Serial_s2m_buffer_t {
+ // TODO: if MATRIX_COLS > 8 change to uint8_t packed_matrix[] for pack/unpack
+ matrix_row_t smatrix[ROWS_PER_HAND];
+# ifdef ENCODER_ENABLE
+ uint8_t encoder_state[NUMBER_OF_ENCODERS];
+# endif
+ int8_t mouse_x;
+ int8_t mouse_y;
+} __attribute__((packed)) Serial_s2m_buffer_t;
+
+typedef struct _Serial_m2s_buffer_t {
+# ifdef SPLIT_MODS_ENABLE
+ uint8_t real_mods;
+ uint8_t weak_mods;
+# ifndef NO_ACTION_ONESHOT
+ uint8_t oneshot_mods;
+# endif
+# endif
+# ifdef BACKLIGHT_ENABLE
+ uint8_t backlight_level;
+# endif
+# ifdef WPM_ENABLE
+ uint8_t current_wpm;
+# endif
+ bool oled_on;
+ layer_state_t t_layer_state;
+ layer_state_t t_default_layer_state;
+ bool is_rgb_matrix_suspended;
+} __attribute__((packed)) Serial_m2s_buffer_t;
+
+# if defined(RGBLIGHT_ENABLE) && defined(RGBLIGHT_SPLIT)
+// When MCUs on both sides drive their respective RGB LED chains,
+// it is necessary to synchronize, so it is necessary to communicate RGB
+// information. In that case, define RGBLIGHT_SPLIT with info on the number
+// of LEDs on each half.
+//
+// Otherwise, if the master side MCU drives both sides RGB LED chains,
+// there is no need to communicate.
+
+typedef struct _Serial_rgblight_t {
+ rgblight_syncinfo_t rgblight_sync;
+} Serial_rgblight_t;
+
+volatile Serial_rgblight_t serial_rgblight = {};
+uint8_t volatile status_rgblight = 0;
+# endif
+
+volatile Serial_s2m_buffer_t serial_s2m_buffer = {};
+volatile Serial_m2s_buffer_t serial_m2s_buffer = {};
+uint8_t volatile status0 = 0;
+
+enum serial_transaction_id {
+ GET_SLAVE_MATRIX = 0,
+# if defined(RGBLIGHT_ENABLE) && defined(RGBLIGHT_SPLIT)
+ PUT_RGBLIGHT,
+# endif
+};
+
+SSTD_t transactions[] = {
+ [GET_SLAVE_MATRIX] =
+ {
+ (uint8_t *)&status0,
+ sizeof(serial_m2s_buffer),
+ (uint8_t *)&serial_m2s_buffer,
+ sizeof(serial_s2m_buffer),
+ (uint8_t *)&serial_s2m_buffer,
+ },
+# if defined(RGBLIGHT_ENABLE) && defined(RGBLIGHT_SPLIT)
+ [PUT_RGBLIGHT] =
+ {
+ (uint8_t *)&status_rgblight, sizeof(serial_rgblight), (uint8_t *)&serial_rgblight, 0, NULL // no slave to master transfer
+ },
+# endif
+};
+
+void transport_master_init(void) { soft_serial_initiator_init(transactions, TID_LIMIT(transactions)); }
+
+void transport_slave_init(void) { soft_serial_target_init(transactions, TID_LIMIT(transactions)); }
+
+# if defined(RGBLIGHT_ENABLE) && defined(RGBLIGHT_SPLIT)
+
+// rgblight synchronization information communication.
+
+void transport_rgblight_master(void) {
+ if (rgblight_get_change_flags()) {
+ rgblight_get_syncinfo((rgblight_syncinfo_t *)&serial_rgblight.rgblight_sync);
+ if (soft_serial_transaction(PUT_RGBLIGHT) == TRANSACTION_END) {
+ rgblight_clear_change_flags();
+ }
+ }
+}
+
+void transport_rgblight_slave(void) {
+ if (status_rgblight == TRANSACTION_ACCEPTED) {
+ rgblight_update_sync((rgblight_syncinfo_t *)&serial_rgblight.rgblight_sync, false);
+ status_rgblight = TRANSACTION_END;
+ }
+}
+
+# else
+# define transport_rgblight_master()
+# define transport_rgblight_slave()
+# endif
+
+bool transport_master(matrix_row_t matrix[]) {
+# ifndef SERIAL_USE_MULTI_TRANSACTION
+ if (soft_serial_transaction() != TRANSACTION_END) {
+ return false;
+ }
+# else
+ transport_rgblight_master();
+ if (soft_serial_transaction(GET_SLAVE_MATRIX) != TRANSACTION_END) {
+ return false;
+ }
+# endif
+
+ // TODO: if MATRIX_COLS > 8 change to unpack()
+ for (int i = 0; i < ROWS_PER_HAND; ++i) {
+ matrix[i] = serial_s2m_buffer.smatrix[i];
+ }
+
+# ifdef BACKLIGHT_ENABLE
+ // Write backlight level for slave to read
+ serial_m2s_buffer.backlight_level = is_backlight_enabled() ? get_backlight_level() : 0;
+# endif
+
+# ifdef ENCODER_ENABLE
+ encoder_update_raw((uint8_t *)serial_s2m_buffer.encoder_state);
+# endif
+
+# ifdef WPM_ENABLE
+ // Write wpm to slave
+ serial_m2s_buffer.current_wpm = get_current_wpm();
+# endif
+
+# ifdef SPLIT_MODS_ENABLE
+ serial_m2s_buffer.real_mods = get_mods();
+ serial_m2s_buffer.weak_mods = get_weak_mods();
+# ifndef NO_ACTION_ONESHOT
+ serial_m2s_buffer.oneshot_mods = get_oneshot_mods();
+# endif
+# endif
+
+# ifdef POINTING_DEVICE_ENABLE
+ if (is_keyboard_left()) {
+ report_mouse_t temp_report = pointing_device_get_report();
+ temp_report.x = serial_s2m_buffer.mouse_x;
+ temp_report.y = serial_s2m_buffer.mouse_y;
+ pointing_device_set_report(temp_report);
+ }
+# endif
+
+ serial_m2s_buffer.t_layer_state = layer_state;
+ serial_m2s_buffer.t_default_layer_state = default_layer_state;
+# ifdef OLED_DRIVER_ENABLE
+ serial_m2s_buffer.oled_on = is_oled_on();
+# endif
+
+# ifdef RGB_MATRIX_ENABLE
+ serial_m2s_buffer.is_rgb_matrix_suspended = rgb_matrix_get_suspend_state();
+# endif
+
+ return true;
+}
+
+void transport_slave(matrix_row_t matrix[]) {
+ transport_rgblight_slave();
+
+ // TODO: if MATRIX_COLS > 8 change to pack()
+ for (int i = 0; i < ROWS_PER_HAND; ++i) {
+ serial_s2m_buffer.smatrix[i] = matrix[i];
+ }
+
+# ifdef BACKLIGHT_ENABLE
+ backlight_set(serial_m2s_buffer.backlight_level);
+# endif
+
+# ifdef ENCODER_ENABLE
+ encoder_state_raw((uint8_t *)serial_s2m_buffer.encoder_state);
+# endif
+
+# ifdef WPM_ENABLE
+ set_current_wpm(serial_m2s_buffer.current_wpm);
+# endif
+
+# ifdef SPLIT_MODS_ENABLE
+ set_mods(serial_m2s_buffer.real_mods);
+ set_weak_mods(serial_m2s_buffer.weak_mods);
+# ifndef NO_ACTION_ONESHOT
+ set_oneshot_mods(serial_m2s_buffer.oneshot_mods);
+# endif
+# endif
+
+# ifdef POINTING_DEVICE_ENABLE
+ if (!is_keyboard_left()) {
+ serial_s2m_buffer.mouse_x = split_mouse_x;
+ serial_s2m_buffer.mouse_y = split_mouse_y;
+ }
+# endif
+
+ if (layer_state != serial_m2s_buffer.t_layer_state) {
+ layer_state = serial_m2s_buffer.t_layer_state;
+ }
+ if (default_layer_state != serial_m2s_buffer.t_default_layer_state) {
+ default_layer_state = serial_m2s_buffer.t_default_layer_state;
+ }
+# ifdef OLED_DRIVER_ENABLE
+ if (serial_m2s_buffer.oled_on) {
+ oled_on();
+ } else {
+ oled_off();
+ }
+# endif
+
+# ifdef RGB_MATRIX_ENABLE
+ rgb_matrix_set_suspend_state(serial_m2s_buffer.is_rgb_matrix_suspended);
+# endif
+}
+
+#endif
+
+#ifdef POINTING_DEVICE_ENABLE
+void master_mouse_send(int8_t x, int8_t y) {
+ split_mouse_x = x;
+ split_mouse_y = y;
+}
+#endif