3 files changed, 66 insertions, 52 deletions

diff --git a/quantum/split_common/matrix.c b/quantum/split_common/matrix.c
index d6636b886..f8de17809 100644
--- a/quantum/split_common/matrix.c
+++ b/quantum/split_common/matrix.c
@@ -43,6 +43,7 @@ extern matrix_row_t matrix[MATRIX_ROWS];      // debounced values
 uint8_t thisHand, thatHand;
 
 // user-defined overridable functions
+__attribute__((weak)) void matrix_slave_scan_kb(void) { matrix_slave_scan_user(); }
 __attribute__((weak)) void matrix_slave_scan_user(void) {}
 
 static inline void setPinOutput_writeLow(pin_t pin) {
@@ -284,7 +285,7 @@ bool matrix_post_scan(void) {
     } else {
         transport_slave(matrix + thatHand, matrix + thisHand);
 
-        matrix_slave_scan_user();
+        matrix_slave_scan_kb();
     }
 
     return changed;
diff --git a/quantum/split_common/split_util.c b/quantum/split_common/split_util.c
index 2ae44e6e1..9e75e19ce 100644
--- a/quantum/split_common/split_util.c
+++ b/quantum/split_common/split_util.c
@@ -1,3 +1,18 @@
+/* Copyright 2021 QMK
+ *
+ * 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 3 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 "split_util.h"
 #include "matrix.h"
 #include "keyboard.h"
@@ -6,14 +21,7 @@
 #include "transport.h"
 #include "quantum.h"
 #include "wait.h"
-
-#ifdef PROTOCOL_LUFA
-#    include <LUFA/Drivers/USB/USB.h>
-#endif
-
-#ifdef PROTOCOL_VUSB
-#    include <usbdrv/usbdrv.h>
-#endif
+#include "usb_util.h"
 
 #ifdef EE_HANDS
 #    include "eeconfig.h"
@@ -31,56 +39,21 @@
 #    define SPLIT_USB_TIMEOUT_POLL 10
 #endif
 
-#ifdef PROTOCOL_CHIBIOS
-#    define SPLIT_USB_DETECT  // Force this on for now
-#endif
-
 volatile bool isLeftHand = true;
 
 #if defined(SPLIT_USB_DETECT)
-#    if defined(PROTOCOL_LUFA)
-static inline bool usbHasActiveConnection(void) { return USB_Device_IsAddressSet(); }
-static inline void usbDisable(void) {
-    USB_Disable();
-    USB_DeviceState = DEVICE_STATE_Unattached;
-}
-#    elif defined(PROTOCOL_CHIBIOS)
-static inline bool usbHasActiveConnection(void) { return usbGetDriverStateI(&USBD1) == USB_ACTIVE; }
-static inline void usbDisable(void) { usbStop(&USBD1); }
-#    elif defined(PROTOCOL_VUSB)
-static inline bool usbHasActiveConnection(void) {
-    usbPoll();
-    return usbConfiguration;
-}
-static inline void usbDisable(void) { usbDeviceDisconnect(); }
-#    else
-static inline bool usbHasActiveConnection(void) { return true; }
-static inline void usbDisable(void) {}
-#    endif
-
-bool usbIsActive(void) {
+static bool usbIsActive(void) {
     for (uint8_t i = 0; i < (SPLIT_USB_TIMEOUT / SPLIT_USB_TIMEOUT_POLL); i++) {
         // This will return true if a USB connection has been established
-        if (usbHasActiveConnection()) {
+        if (usb_connected_state()) {
             return true;
         }
         wait_ms(SPLIT_USB_TIMEOUT_POLL);
     }
-
-    // Avoid NO_USB_STARTUP_CHECK - Disable USB as the previous checks seem to enable it somehow
-    usbDisable();
-
     return false;
 }
-#elif defined(PROTOCOL_LUFA) && defined(OTGPADE)
-static inline bool usbIsActive(void) {
-    USB_OTGPAD_On();  // enables VBUS pad
-    wait_us(5);
-
-    return USB_VBUS_GetStatus();  // checks state of VBUS
-}
 #else
-static inline bool usbIsActive(void) { return true; }
+static inline bool usbIsActive(void) { return usb_vbus_state(); }
 #endif
 
 #ifdef SPLIT_HAND_MATRIX_GRID
@@ -126,6 +99,11 @@ __attribute__((weak)) bool is_keyboard_master(void) {
     // only check once, as this is called often
     if (usbstate == UNKNOWN) {
         usbstate = usbIsActive() ? MASTER : SLAVE;
+
+        // Avoid NO_USB_STARTUP_CHECK - Disable USB as the previous checks seem to enable it somehow
+        if (usbstate == SLAVE) {
+            usb_disable();
+        }
     }
 
     return (usbstate == MASTER);
diff --git a/quantum/split_common/transport.c b/quantum/split_common/transport.c
index 61b61ea08..27a1c0d3a 100644
--- a/quantum/split_common/transport.c
+++ b/quantum/split_common/transport.c
@@ -22,6 +22,10 @@ static pin_t encoders_pad[] = ENCODERS_PAD_A;
 #    define NUMBER_OF_ENCODERS (sizeof(encoders_pad) / sizeof(pin_t))
 #endif
 
+#if defined(RGB_MATRIX_ENABLE) && defined(RGB_MATRIX_SPLIT)
+#    include "rgb_matrix.h"
+#endif
+
 #if defined(USE_I2C)
 
 #    include "i2c_master.h"
@@ -54,6 +58,10 @@ typedef struct _I2C_slave_buffer_t {
 #    ifdef WPM_ENABLE
     uint8_t current_wpm;
 #    endif
+#    if defined(RGB_MATRIX_ENABLE) && defined(RGB_MATRIX_SPLIT)
+    rgb_config_t rgb_matrix;
+    bool         rgb_suspend_state;
+#    endif
 } I2C_slave_buffer_t;
 
 static I2C_slave_buffer_t *const i2c_buffer = (I2C_slave_buffer_t *)i2c_slave_reg;
@@ -68,6 +76,8 @@ static I2C_slave_buffer_t *const i2c_buffer = (I2C_slave_buffer_t *)i2c_slave_re
 #    define I2C_RGB_START offsetof(I2C_slave_buffer_t, rgblight_sync)
 #    define I2C_ENCODER_START offsetof(I2C_slave_buffer_t, encoder_state)
 #    define I2C_WPM_START offsetof(I2C_slave_buffer_t, current_wpm)
+#    define I2C_RGB_MATRIX_START offsetof(I2C_slave_buffer_t, rgb_matrix)
+#    define I2C_RGB_SUSPEND_START offsetof(I2C_slave_buffer_t, rgb_suspend_state)
 
 #    define TIMEOUT 100
 
@@ -141,6 +151,11 @@ bool transport_master(matrix_row_t master_matrix[], matrix_row_t slave_matrix[])
 #        endif
 #    endif
 
+#    if defined(RGB_MATRIX_ENABLE) && defined(RGB_MATRIX_SPLIT)
+    i2c_writeReg(SLAVE_I2C_ADDRESS, I2C_RGB_MATRIX_START, (void *)rgb_matrix_config, sizeof(i2c_buffer->rgb_matrix), TIMEOUT);
+    i2c_writeReg(SLAVE_I2C_ADDRESS, I2C_RGB_SUSPEND_START, (void *)g_suspend_state, sizeof(i2c_buffer->rgb_suspend_state), TIMEOUT);
+#    endif
+
 #    ifndef DISABLE_SYNC_TIMER
     i2c_buffer->sync_timer = sync_timer_read32() + SYNC_TIMER_OFFSET;
     i2c_writeReg(SLAVE_I2C_ADDRESS, I2C_SYNC_TIME_START, (void *)&i2c_buffer->sync_timer, sizeof(i2c_buffer->sync_timer), TIMEOUT);
@@ -186,6 +201,11 @@ void transport_slave(matrix_row_t master_matrix[], matrix_row_t slave_matrix[])
     set_oneshot_mods(i2c_buffer->oneshot_mods);
 #        endif
 #    endif
+
+#    if defined(RGB_MATRIX_ENABLE) && defined(RGB_MATRIX_SPLIT)
+    memcpy((void *)i2c_buffer->rgb_matrix, (void *)rgb_matrix_config, sizeof(i2c_buffer->rgb_matrix));
+    memcpy((void *)i2c_buffer->rgb_suspend_state, (void *)g_suspend_state, sizeof(i2c_buffer->rgb_suspend_state));
+#    endif
 }
 
 void transport_master_init(void) { i2c_init(); }
@@ -226,6 +246,10 @@ typedef struct _Serial_m2s_buffer_t {
 #    ifdef WPM_ENABLE
     uint8_t      current_wpm;
 #    endif
+#    if defined(RGB_MATRIX_ENABLE) && defined(RGB_MATRIX_SPLIT)
+    rgb_config_t rgb_matrix;
+    bool         rgb_suspend_state;
+#    endif
 } Serial_m2s_buffer_t;
 
 #    if defined(RGBLIGHT_ENABLE) && defined(RGBLIGHT_SPLIT)
@@ -333,18 +357,24 @@ bool transport_master(matrix_row_t master_matrix[], matrix_row_t slave_matrix[])
 
 #    ifdef WPM_ENABLE
     // Write wpm to slave
-    serial_m2s_buffer.current_wpm  = get_current_wpm();
+    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();
+    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();
+    serial_m2s_buffer.oneshot_mods      = get_oneshot_mods();
 #        endif
 #    endif
+
+#    if defined(RGB_MATRIX_ENABLE) && defined(RGB_MATRIX_SPLIT)
+    serial_m2s_buffer.rgb_matrix        = rgb_matrix_config;
+    serial_m2s_buffer.rgb_suspend_state = g_suspend_state;
+#    endif
+
 #    ifndef DISABLE_SYNC_TIMER
-    serial_m2s_buffer.sync_timer   = sync_timer_read32() + SYNC_TIMER_OFFSET;
+    serial_m2s_buffer.sync_timer        = sync_timer_read32() + SYNC_TIMER_OFFSET;
 #    endif
     return true;
 }
@@ -381,6 +411,11 @@ void transport_slave(matrix_row_t master_matrix[], matrix_row_t slave_matrix[])
     set_oneshot_mods(serial_m2s_buffer.oneshot_mods);
 #        endif
 #    endif
+
+#    if defined(RGB_MATRIX_ENABLE) && defined(RGB_MATRIX_SPLIT)
+    rgb_matrix_config = serial_m2s_buffer.rgb_matrix;
+    g_suspend_state   = serial_m2s_buffer.rgb_suspend_state;
+#    endif
 }
 
 #endif