1 files changed, 174 insertions, 0 deletions

diff --git a/users/drashna/split/transport_sync.c b/users/drashna/split/transport_sync.c
new file mode 100644
index 000000000..cee3f04c8
--- /dev/null
+++ b/users/drashna/split/transport_sync.c
@@ -0,0 +1,174 @@
+/* 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 "transport_sync.h"
+#include "transactions.h"
+#include <string.h>
+
+#ifdef CUSTOM_UNICODE_ENABLE
+#include "process_unicode_common.h"
+extern unicode_config_t unicode_config;
+#endif
+#ifdef AUDIO_ENABLE
+#    include "audio.h"
+extern audio_config_t audio_config;
+extern bool           delayed_tasks_run;
+#endif
+#if defined(POINTING_DEVICE_ENABLE) && defined(KEYBOARD_handwired_tractyl_manuform)
+extern bool tap_toggling;
+#endif
+#ifdef SWAP_HANDS_ENABLE
+extern bool swap_hands;
+#endif
+extern userspace_config_t userspace_config;
+extern bool               host_driver_disabled;
+
+uint16_t transport_keymap_config    = 0;
+uint32_t transport_userspace_config = 0, transport_user_state = 0;
+
+user_runtime_config_t user_state;
+
+void user_state_sync(uint8_t initiator2target_buffer_size, const void* initiator2target_buffer, uint8_t target2initiator_buffer_size, void* target2initiator_buffer) {
+    if (initiator2target_buffer_size == sizeof(transport_user_state)) {
+        memcpy(&transport_user_state, initiator2target_buffer, initiator2target_buffer_size);
+    }
+}
+void user_keymap_sync(uint8_t initiator2target_buffer_size, const void* initiator2target_buffer, uint8_t target2initiator_buffer_size, void* target2initiator_buffer) {
+    if (initiator2target_buffer_size == sizeof(transport_keymap_config)) {
+        memcpy(&transport_keymap_config, initiator2target_buffer, initiator2target_buffer_size);
+    }
+}
+void user_config_sync(uint8_t initiator2target_buffer_size, const void* initiator2target_buffer, uint8_t target2initiator_buffer_size, void* target2initiator_buffer) {
+    if (initiator2target_buffer_size == sizeof(transport_userspace_config)) {
+        memcpy(&transport_userspace_config, initiator2target_buffer, initiator2target_buffer_size);
+    }
+}
+
+void keyboard_post_init_transport_sync(void) {
+    // Register keyboard state sync split transaction
+    transaction_register_rpc(RPC_ID_USER_STATE_SYNC, user_state_sync);
+    transaction_register_rpc(RPC_ID_USER_KEYMAP_SYNC, user_keymap_sync);
+    transaction_register_rpc(RPC_ID_USER_CONFIG_SYNC, user_config_sync);
+}
+
+void user_transport_update(void) {
+    if (is_keyboard_master()) {
+        transport_keymap_config    = keymap_config.raw;
+        transport_userspace_config = userspace_config.raw;
+#ifdef AUDIO_ENABLE
+        user_state.audio_enable        = is_audio_on();
+        user_state.audio_clicky_enable = is_clicky_on();
+#endif
+#if defined(POINTING_DEVICE_ENABLE) && defined(KEYBOARD_handwired_tractyl_manuform)
+        user_state.tap_toggling = tap_toggling;
+#endif
+#ifdef UNICODE_ENABLE
+        user_state.unicode_mode = unicode_config.input_mode;
+#endif
+#ifdef SWAP_HANDS_ENABLE
+        user_state.swap_hands = swap_hands;
+#endif
+        user_state.host_driver_disabled = host_driver_disabled;
+
+        transport_user_state = user_state.raw;
+    } else {
+        keymap_config.raw    = transport_keymap_config;
+        userspace_config.raw = transport_userspace_config;
+        user_state.raw       = transport_user_state;
+#ifdef UNICODE_ENABLE
+        unicode_config.input_mode = user_state.unicode_mode;
+#endif
+#if defined(POINTING_DEVICE_ENABLE) && defined(KEYBOARD_handwired_tractyl_manuform)
+        tap_toggling = user_state.tap_toggling;
+#endif
+#ifdef SWAP_HANDS_ENABLE
+        swap_hands = user_state.swap_hands;
+#endif
+        host_driver_disabled = user_state.host_driver_disabled;
+    }
+}
+
+void user_transport_sync(void) {
+    if (is_keyboard_master()) {
+        // Keep track of the last state, so that we can tell if we need to propagate to slave
+        static uint16_t              last_keymap = 0;
+        static uint32_t              last_config = 0, last_sync[3], last_user_state = 0;
+        bool                         needs_sync = false;
+
+        // Check if the state values are different
+        if (memcmp(&transport_user_state, &last_user_state, sizeof(transport_user_state))) {
+            needs_sync = true;
+            memcpy(&last_user_state, &transport_user_state, sizeof(transport_user_state));
+        }
+        // Send to slave every 500ms regardless of state change
+        if (timer_elapsed32(last_sync[0]) > 250) {
+            needs_sync = true;
+        }
+
+        // Perform the sync if requested
+        if (needs_sync) {
+            if (transaction_rpc_send(RPC_ID_USER_STATE_SYNC, sizeof(user_state), &user_state)) {
+                last_sync[0] = timer_read32();
+            }
+            needs_sync = false;
+        }
+
+        // Check if the state values are different
+        if (memcmp(&transport_keymap_config, &last_keymap, sizeof(transport_keymap_config))) {
+            needs_sync = true;
+            memcpy(&last_keymap, &transport_keymap_config, sizeof(transport_keymap_config));
+        }
+
+        // Send to slave every 500ms regardless of state change
+        if (timer_elapsed32(last_sync[1]) > 250) {
+            needs_sync = true;
+        }
+
+        // Perform the sync if requested
+        if (needs_sync) {
+            if (transaction_rpc_send(RPC_ID_USER_KEYMAP_SYNC, sizeof(transport_keymap_config), &transport_keymap_config)) {
+                last_sync[1] = timer_read32();
+            }
+            needs_sync = false;
+        }
+
+        // Check if the state values are different
+        if (memcmp(&user_state, &last_config, sizeof(transport_userspace_config))) {
+            needs_sync = true;
+            memcpy(&last_config, &user_state, sizeof(transport_userspace_config));
+        }
+
+        // Send to slave every 500ms regardless of state change
+        if (timer_elapsed32(last_sync[2]) > 250) {
+            needs_sync = true;
+        }
+
+        // Perform the sync if requested
+        if (needs_sync) {
+            if (transaction_rpc_send(RPC_ID_USER_CONFIG_SYNC, sizeof(transport_userspace_config), &transport_userspace_config)) {
+                last_sync[2] = timer_read32();
+            }
+        }
+    }
+}
+
+void housekeeping_task_user(void) {
+    // Update kb_state so we can send to slave
+    user_transport_update();
+
+    // Data sync from master to slave
+    user_transport_sync();
+}