diff --git a/app/CMakeLists.txt b/app/CMakeLists.txt index 5be628b7..1cee6b3e 100644 --- a/app/CMakeLists.txt +++ b/app/CMakeLists.txt @@ -42,6 +42,9 @@ target_sources(app PRIVATE src/behaviors/behavior_mod_tap.c) target_sources(app PRIVATE src/behaviors/behavior_momentary_layer.c) target_sources(app PRIVATE src/behaviors/behavior_transparent.c) target_sources_ifdef(CONFIG_ZMK_BLE app PRIVATE src/ble.c) +target_sources_ifdef(CONFIG_ZMK_SPLIT_BLE_ROLE_PERIPHERAL app PRIVATE src/split_listener.c) +target_sources_ifdef(CONFIG_ZMK_SPLIT_BLE_ROLE_PERIPHERAL app PRIVATE src/split/bluetooth/service.c) +target_sources_ifdef(CONFIG_ZMK_SPLIT_BLE_ROLE_CENTRAL app PRIVATE src/split/bluetooth/central.c) target_sources_ifdef(CONFIG_ZMK_KSCAN_MOCK_DRIVER app PRIVATE src/kscan_mock.c) target_sources_ifdef(CONFIG_ZMK_KSCAN_COMPOSITE_DRIVER app PRIVATE src/kscan_composite.c) target_sources_ifdef(CONFIG_ZMK_USB app PRIVATE src/usb_hid.c) diff --git a/app/Kconfig b/app/Kconfig index e6dc3bd5..997409ef 100644 --- a/app/Kconfig +++ b/app/Kconfig @@ -40,6 +40,8 @@ menuconfig ZMK_BLE select BT_PERIPHERAL select BT_GATT_DIS select BT_GATT_BAS + select SETTINGS + select BT_SETTINGS if ZMK_BLE @@ -47,6 +49,9 @@ config ZMK_BLE_INIT_PRIORITY int "Init Priority" default 50 +config SYSTEM_WORKQUEUE_STACK_SIZE + default 2048 + # HID GATT notifications sent this way are *not* picked up by Linux, and possibly others. config BT_GATT_NOTIFY_MULTIPLE default n @@ -58,20 +63,65 @@ config ZMK_BLE_PASSKEY_ENTRY bool "Experimental: Requiring typing passkey from host to pair BLE connection" default n -# Incresed stack due to settings API usage -# CONFIG_SYSTEM_WORKQUEUE_STACK_SIZE=2048 -# -# CONFIG_BT_SETTINGS=y -# CONFIG_FLASH=y -# CONFIG_FLASH_PAGE_LAYOUT=y -# CONFIG_FLASH_MAP=y -# CONFIG_NVS=y -# CONFIG_SETTINGS=y +endif + +endmenu + + +menu "Split Support" + +config ZMK_SPLIT + bool "Split keyboard support" + default n + +if ZMK_SPLIT + +config ZMK_SPLIT_BLE + bool "Split keyboard support via BLE transport" + depends on ZMK_BLE + default y + +if ZMK_SPLIT_BLE + +choice ZMK_SPLIT_BLE_ROLE + bool "BLE Role For Split Communication" + default ZMK_SPLIT_BLE_ROLE_CENTRAL + +config ZMK_SPLIT_BLE_ROLE_CENTRAL + bool "Central" + select BT_CENTRAL + select BT_GATT_CLIENT + +if ZMK_SPLIT_BLE_ROLE_CENTRAL + +config BT_MAX_CONN + default 5 + +endif + +config ZMK_SPLIT_BLE_ROLE_PERIPHERAL + bool "Peripheral" + +if ZMK_SPLIT_BLE_ROLE_PERIPHERAL + +config ZMK_USB + default n + + +config BT_MAX_CONN + default 5 endif +endchoice + +endif + +endif + endmenu + config ZMK_KSCAN_MOCK_DRIVER bool "Enable mock kscan driver to simulate key presses" default n @@ -89,7 +139,7 @@ config ZMK_ACTION_MOD_TAP endmenu config HEAP_MEM_POOL_SIZE - default 200 + default 1024 module = ZMK module-str = zmk diff --git a/app/boards/arm/nice_nano/nice_nano_defconfig b/app/boards/arm/nice_nano/nice_nano_defconfig index f9be0ee8..393d61fe 100644 --- a/app/boards/arm/nice_nano/nice_nano_defconfig +++ b/app/boards/arm/nice_nano/nice_nano_defconfig @@ -11,3 +11,10 @@ CONFIG_ARM_MPU=y CONFIG_GPIO=y CONFIG_USE_DT_CODE_PARTITION=y + +CONFIG_MPU_ALLOW_FLASH_WRITE=y +CONFIG_NVS=y +CONFIG_SETTINGS_NVS=y +CONFIG_FLASH=y +CONFIG_FLASH_PAGE_LAYOUT=y +CONFIG_FLASH_MAP=y \ No newline at end of file diff --git a/app/boards/shields/kyria/Kconfig.defconfig b/app/boards/shields/kyria/Kconfig.defconfig index 25af5376..bc0a7b82 100644 --- a/app/boards/shields/kyria/Kconfig.defconfig +++ b/app/boards/shields/kyria/Kconfig.defconfig @@ -1,7 +1,22 @@ -if SHIELD_KYRIA_LEFT || SHIELD_KYRIA_RIGHT +if SHIELD_KYRIA_LEFT + +config ZMK_KEYBOARD_NAME + default "Kyria Left" + +endif + + +if SHIELD_KYRIA_RIGHT config ZMK_KEYBOARD_NAME - default "Kyria" + default "Kyria Right" + +endif + +if SHIELD_KYRIA_LEFT || SHIELD_KYRIA_RIGHT + +config ZMK_SPLIT + default y endif diff --git a/app/boards/shields/kyria/kyria_left.conf b/app/boards/shields/kyria/kyria_left.conf new file mode 100644 index 00000000..e51dee44 --- /dev/null +++ b/app/boards/shields/kyria/kyria_left.conf @@ -0,0 +1,2 @@ +CONFIG_ZMK_SPLIT=y +CONFIG_ZMK_SPLIT_BLE_ROLE_CENTRAL=y \ No newline at end of file diff --git a/app/boards/shields/kyria/kyria_right.conf b/app/boards/shields/kyria/kyria_right.conf new file mode 100644 index 00000000..a835adc1 --- /dev/null +++ b/app/boards/shields/kyria/kyria_right.conf @@ -0,0 +1,2 @@ +CONFIG_ZMK_SPLIT=y +CONFIG_ZMK_SPLIT_BLE_ROLE_PERIPHERAL=y \ No newline at end of file diff --git a/app/boards/shields/lily58/Kconfig.defconfig b/app/boards/shields/lily58/Kconfig.defconfig index 9ec58344..8f278b03 100644 --- a/app/boards/shields/lily58/Kconfig.defconfig +++ b/app/boards/shields/lily58/Kconfig.defconfig @@ -1,7 +1,14 @@ -if SHIELD_LILY58_LEFT || SHIELD_LILY58_RIGHT +if SHIELD_LILY58_LEFT config ZMK_KEYBOARD_NAME - default "Lily58" + default "Lily58 Left" + +endif + +if SHIELD_LILY58_RIGHT + +config ZMK_KEYBOARD_NAME + default "Lily58 Right" endif diff --git a/app/boards/shields/lily58/lily58_left.conf b/app/boards/shields/lily58/lily58_left.conf new file mode 100644 index 00000000..e51dee44 --- /dev/null +++ b/app/boards/shields/lily58/lily58_left.conf @@ -0,0 +1,2 @@ +CONFIG_ZMK_SPLIT=y +CONFIG_ZMK_SPLIT_BLE_ROLE_CENTRAL=y \ No newline at end of file diff --git a/app/boards/shields/lily58/lily58_right.conf b/app/boards/shields/lily58/lily58_right.conf new file mode 100644 index 00000000..990cf7c0 --- /dev/null +++ b/app/boards/shields/lily58/lily58_right.conf @@ -0,0 +1,2 @@ +CONFIG_ZMK_SPLIT=y +CONFIG_ZMK_SPLIT_BLE_ROLE_PERIPHERAL=y diff --git a/app/include/zmk/split/bluetooth/service.h b/app/include/zmk/split/bluetooth/service.h new file mode 100644 index 00000000..954e0cdd --- /dev/null +++ b/app/include/zmk/split/bluetooth/service.h @@ -0,0 +1,4 @@ +#pragma once + +int zmk_split_bt_position_pressed(u8_t position); +int zmk_split_bt_position_released(u8_t position); \ No newline at end of file diff --git a/app/include/zmk/split/bluetooth/uuid.h b/app/include/zmk/split/bluetooth/uuid.h new file mode 100644 index 00000000..59f2f712 --- /dev/null +++ b/app/include/zmk/split/bluetooth/uuid.h @@ -0,0 +1,12 @@ +#pragma once + +#include + +#ifndef BT_UUID_NUM_OF_DIGITALS +#define BT_UUID_NUM_OF_DIGITALS BT_UUID_DECLARE_16(0x2909) +#endif + +#define ZMK_BT_SPLIT_UUID(num) BT_UUID_128_ENCODE(num, 0x0096, 0x7107, 0xc967, 0xc5cfb1c2482a) +#define ZMK_SPLIT_BT_SERVICE_UUID ZMK_BT_SPLIT_UUID(0x00000000) +#define ZMK_SPLIT_BT_CHAR_POSITION_STATE_UUID ZMK_BT_SPLIT_UUID(0x00000001) + diff --git a/app/src/ble.c b/app/src/ble.c index c0e81a96..af3c25d2 100644 --- a/app/src/ble.c +++ b/app/src/ble.c @@ -11,7 +11,13 @@ #include #include + +#include + +LOG_MODULE_DECLARE(zmk, CONFIG_ZMK_LOG_LEVEL); + #include +#include static struct bt_conn *auth_passkey_entry_conn; static u8_t passkey_entries[6] = {0, 0, 0, 0, 0, 0}; @@ -31,6 +37,8 @@ static void connected(struct bt_conn *conn, u8_t err) printk("Connected %s\n", addr); + bt_conn_le_param_update(conn, BT_LE_CONN_PARAM(0x0006, 0x000c, 5, 400)); + if (bt_conn_set_security(conn, BT_SECURITY_L2)) { printk("Failed to set security\n"); @@ -121,13 +129,21 @@ static struct bt_conn_auth_cb zmk_ble_auth_cb_display = { static const struct bt_data zmk_ble_ad[] = { BT_DATA_BYTES(BT_DATA_FLAGS, (BT_LE_AD_GENERAL | BT_LE_AD_NO_BREDR)), - BT_DATA_BYTES(BT_DATA_UUID16_ALL, + BT_DATA_BYTES(BT_DATA_UUID16_SOME, +#if !IS_ENABLED(CONFIG_ZMK_SPLIT_BLE) 0x12, 0x18, /* HID Service */ - 0x0f, 0x18), /* Battery Service */ +#endif + 0x0f, 0x18 /* Battery Service */ + ), +#if IS_ENABLED(CONFIG_ZMK_SPLIT_BLE) + BT_DATA_BYTES(BT_DATA_UUID128_ALL, + ZMK_SPLIT_BT_SERVICE_UUID) +#endif }; static void zmk_ble_ready(int err) { + LOG_DBG("ready? %d", err); if (err) { printk("Bluetooth init failed (err %d)\n", err); @@ -144,11 +160,7 @@ static void zmk_ble_ready(int err) static int zmk_ble_init(struct device *_arg) { - if (IS_ENABLED(CONFIG_SETTINGS)) - { - settings_load(); - } - int err = bt_enable(zmk_ble_ready); + int err = bt_enable(NULL); if (err) { @@ -156,9 +168,16 @@ static int zmk_ble_init(struct device *_arg) return err; } + if (IS_ENABLED(CONFIG_BT_SETTINGS)) + { + settings_load(); + } + bt_conn_cb_register(&conn_callbacks); bt_conn_auth_cb_register(&zmk_ble_auth_cb_display); + zmk_ble_ready(0); + return 0; } diff --git a/app/src/main.c b/app/src/main.c index 92ecc8b1..e7553042 100644 --- a/app/src/main.c +++ b/app/src/main.c @@ -26,9 +26,4 @@ void main(void) { return; } - - -#ifdef CONFIG_SETTINGS - settings_load(); -#endif } diff --git a/app/src/split/bluetooth/central.c b/app/src/split/bluetooth/central.c new file mode 100644 index 00000000..b6d72221 --- /dev/null +++ b/app/src/split/bluetooth/central.c @@ -0,0 +1,301 @@ +/* + * Copyright (c) 2020 Peter Johanson + * + * SPDX-License-Identifier: MIT + */ + +#include + +#include +#include +#include +#include +#include + +#include + +LOG_MODULE_DECLARE(zmk, CONFIG_ZMK_LOG_LEVEL); + +#include +#include +#include +#include + +static int start_scan(void); + +#define POSITION_STATE_DATA_LEN 16 + +static struct bt_conn *default_conn; + +static struct bt_uuid_128 uuid = BT_UUID_INIT_128(ZMK_SPLIT_BT_SERVICE_UUID); +static struct bt_gatt_discover_params discover_params; +static struct bt_gatt_subscribe_params subscribe_params; + +static u8_t split_central_notify_func(struct bt_conn *conn, + struct bt_gatt_subscribe_params *params, + const void *data, u16_t length) +{ + static u8_t position_state[POSITION_STATE_DATA_LEN]; + + u8_t changed_positions[POSITION_STATE_DATA_LEN]; + + if (!data) { + LOG_DBG("[UNSUBSCRIBED]"); + params->value_handle = 0U; + return BT_GATT_ITER_STOP; + } + + LOG_DBG("[NOTIFICATION] data %p length %u", data, length); + + for (int i = 0; i < POSITION_STATE_DATA_LEN; i++) { + changed_positions[i] = ((u8_t *)data)[i] ^ position_state[i]; + position_state[i] = ((u8_t *)data)[i]; + } + + for (int i = 0; i < POSITION_STATE_DATA_LEN; i++) { + for (int j = 0; j < 8; j++) { + if (changed_positions[i] & BIT(j)) { + u32_t position = (i * 8) + j; + bool pressed = position_state[i] & BIT(j); + struct position_state_changed *pos_ev = new_position_state_changed(); + pos_ev->position = position; + pos_ev->state = pressed; + + LOG_DBG("Trigger key position state change for %d", position); + ZMK_EVENT_RAISE(pos_ev); + } + } + } + + + return BT_GATT_ITER_CONTINUE; +} + +static u8_t split_central_discovery_func(struct bt_conn *conn, + const struct bt_gatt_attr *attr, + struct bt_gatt_discover_params *params) +{ + int err; + + if (!attr) { + LOG_DBG("Discover complete"); + (void)memset(params, 0, sizeof(*params)); + return BT_GATT_ITER_STOP; + } + + LOG_DBG("[ATTRIBUTE] handle %u", attr->handle); + + if (!bt_uuid_cmp(discover_params.uuid, BT_UUID_DECLARE_128(ZMK_SPLIT_BT_SERVICE_UUID))) { + memcpy(&uuid, BT_UUID_DECLARE_128(ZMK_SPLIT_BT_CHAR_POSITION_STATE_UUID), sizeof(uuid)); + discover_params.uuid = &uuid.uuid; + discover_params.start_handle = attr->handle + 1; + discover_params.type = BT_GATT_DISCOVER_CHARACTERISTIC; + + err = bt_gatt_discover(conn, &discover_params); + if (err) { + LOG_ERR("Discover failed (err %d)", err); + } + } else if (!bt_uuid_cmp(discover_params.uuid, + BT_UUID_DECLARE_128(ZMK_SPLIT_BT_CHAR_POSITION_STATE_UUID))) { + memcpy(&uuid, BT_UUID_GATT_CCC, sizeof(uuid)); + discover_params.uuid = &uuid.uuid; + discover_params.start_handle = attr->handle + 2; + discover_params.type = BT_GATT_DISCOVER_DESCRIPTOR; + subscribe_params.value_handle = bt_gatt_attr_value_handle(attr); + + err = bt_gatt_discover(conn, &discover_params); + if (err) { + LOG_ERR("Discover failed (err %d)", err); + } + } else { + subscribe_params.notify = split_central_notify_func; + subscribe_params.value = BT_GATT_CCC_NOTIFY; + subscribe_params.ccc_handle = attr->handle; + + err = bt_gatt_subscribe(conn, &subscribe_params); + if (err && err != -EALREADY) { + LOG_ERR("Subscribe failed (err %d)", err); + } else { + LOG_DBG("[SUBSCRIBED]"); + } + + return BT_GATT_ITER_STOP; + } + + return BT_GATT_ITER_STOP; +} + +static void split_central_process_connection(struct bt_conn *conn) { + int err; + + LOG_DBG("Current security for connection: %d", bt_conn_get_security(conn)); + + err = bt_conn_set_security(conn, BT_SECURITY_L2); + if (err) { + LOG_ERR("Failed to set security (reason %d)", err); + return; + } + + if (conn == default_conn) { + discover_params.uuid = &uuid.uuid; + discover_params.func = split_central_discovery_func; + discover_params.start_handle = 0x0001; + discover_params.end_handle = 0xffff; + discover_params.type = BT_GATT_DISCOVER_PRIMARY; + + err = bt_gatt_discover(default_conn, &discover_params); + if (err) { + LOG_ERR("Discover failed(err %d)", err); + return; + } + } +} + +static bool split_central_eir_found(struct bt_data *data, void *user_data) +{ + bt_addr_le_t *addr = user_data; + int i; + + LOG_DBG("[AD]: %u data_len %u", data->type, data->data_len); + + switch (data->type) { + case BT_DATA_UUID128_SOME: + case BT_DATA_UUID128_ALL: + if (data->data_len % 16 != 0U) { + LOG_ERR("AD malformed"); + return true; + } + + for (i = 0; i < data->data_len; i += 16) { + struct bt_le_conn_param *param; + struct bt_uuid uuid; + int err; + + if (!bt_uuid_create(&uuid, &data->data[i], 16)) { + LOG_ERR("Unable to load UUID"); + continue; + } + + if (!bt_uuid_cmp(&uuid, BT_UUID_DECLARE_128(ZMK_SPLIT_BT_SERVICE_UUID))) { + char uuid_str[BT_UUID_STR_LEN]; + char service_uuid_str[BT_UUID_STR_LEN]; + + bt_uuid_to_str(&uuid, uuid_str, sizeof(uuid_str)); + bt_uuid_to_str(BT_UUID_DECLARE_128(ZMK_SPLIT_BT_SERVICE_UUID), service_uuid_str, sizeof(service_uuid_str)); + LOG_DBG("UUID %s does not match split UUID: %s", log_strdup(uuid_str), log_strdup(service_uuid_str)); + continue; + } + + LOG_DBG("Found the split service"); + + err = bt_le_scan_stop(); + if (err) { + LOG_ERR("Stop LE scan failed (err %d)", err); + continue; + } + + default_conn = bt_conn_lookup_addr_le(BT_ID_DEFAULT, addr); + if (default_conn) { + LOG_DBG("Found existing connection"); + split_central_process_connection(default_conn); + } else { + param = BT_LE_CONN_PARAM(0x0006, 0x000c, 5, 400); + err = bt_conn_le_create(addr, BT_CONN_LE_CREATE_CONN, + param, &default_conn); + if (err) { + LOG_ERR("Create conn failed (err %d)", err); + start_scan(); + } + } + + return false; + } + } + + return true; +} + +static void split_central_device_found(const bt_addr_le_t *addr, s8_t rssi, u8_t type, + struct net_buf_simple *ad) +{ + char dev[BT_ADDR_LE_STR_LEN]; + + bt_addr_le_to_str(addr, dev, sizeof(dev)); + LOG_DBG("[DEVICE]: %s, AD evt type %u, AD data len %u, RSSI %i", + log_strdup(dev), type, ad->len, rssi); + + /* We're only interested in connectable events */ + if (type == BT_GAP_ADV_TYPE_ADV_IND || + type == BT_GAP_ADV_TYPE_ADV_DIRECT_IND) { + bt_data_parse(ad, split_central_eir_found, (void *)addr); + } +} + +static int start_scan(void) +{ + int err; + + err = bt_le_scan_start(BT_LE_SCAN_PASSIVE, split_central_device_found); + if (err) { + LOG_ERR("Scanning failed to start (err %d)", err); + return err; + } + + LOG_DBG("Scanning successfully started"); + return 0; +} + +static void split_central_connected(struct bt_conn *conn, u8_t conn_err) +{ + char addr[BT_ADDR_LE_STR_LEN]; + + bt_addr_le_to_str(bt_conn_get_dst(conn), addr, sizeof(addr)); + + if (conn_err) { + LOG_ERR("Failed to connect to %s (%u)", addr, conn_err); + + bt_conn_unref(default_conn); + default_conn = NULL; + + start_scan(); + return; + } + + LOG_DBG("Connected: %s", log_strdup(addr)); + + split_central_process_connection(conn); +} + +static void split_central_disconnected(struct bt_conn *conn, u8_t reason) +{ + char addr[BT_ADDR_LE_STR_LEN]; + + bt_addr_le_to_str(bt_conn_get_dst(conn), addr, sizeof(addr)); + + LOG_DBG("Disconnected: %s (reason %d)", log_strdup(addr), reason); + + if (default_conn != conn) { + return; + } + + bt_conn_unref(default_conn); + default_conn = NULL; + + start_scan(); +} + +static struct bt_conn_cb conn_callbacks = { + .connected = split_central_connected, + .disconnected = split_central_disconnected, +}; + +int zmk_split_bt_central_init(struct device *_arg) +{ + bt_conn_cb_register(&conn_callbacks); + + return start_scan(); +} + +SYS_INIT(zmk_split_bt_central_init, + APPLICATION, + CONFIG_ZMK_BLE_INIT_PRIORITY); \ No newline at end of file diff --git a/app/src/split/bluetooth/service.c b/app/src/split/bluetooth/service.c new file mode 100644 index 00000000..e1d232a4 --- /dev/null +++ b/app/src/split/bluetooth/service.c @@ -0,0 +1,50 @@ + +#include +#include +#include +#include + +#include +#include +#include + +static u8_t num_of_positions = ZMK_KEYMAP_LEN; +static u8_t position_state[16]; + +static ssize_t split_svc_pos_state(struct bt_conn *conn, const struct bt_gatt_attr *attrs, void *buf, u16_t len, u16_t offset) +{ + return bt_gatt_attr_read(conn, attrs, buf, len, offset, &position_state, sizeof(position_state)); +} + +static ssize_t split_svc_num_of_positions(struct bt_conn *conn, const struct bt_gatt_attr *attrs, void *buf, u16_t len, u16_t offset) +{ + return bt_gatt_attr_read(conn, attrs, buf, len, offset, attrs->user_data, sizeof(u8_t)); +} + +static void split_svc_pos_state_ccc(const struct bt_gatt_attr *attr, u16_t value) +{ +} + + +BT_GATT_SERVICE_DEFINE(split_svc, + BT_GATT_PRIMARY_SERVICE(BT_UUID_DECLARE_128(ZMK_SPLIT_BT_SERVICE_UUID)), + BT_GATT_CHARACTERISTIC(BT_UUID_DECLARE_128(ZMK_SPLIT_BT_CHAR_POSITION_STATE_UUID), BT_GATT_CHRC_READ | BT_GATT_CHRC_NOTIFY, + BT_GATT_PERM_READ_ENCRYPT, + split_svc_pos_state, NULL, &position_state), + BT_GATT_CCC(split_svc_pos_state_ccc, + BT_GATT_PERM_READ_ENCRYPT | BT_GATT_PERM_WRITE_ENCRYPT), + BT_GATT_DESCRIPTOR(BT_UUID_NUM_OF_DIGITALS, BT_GATT_PERM_READ, + split_svc_num_of_positions, NULL, &num_of_positions), +); + +int zmk_split_bt_position_pressed(u8_t position) +{ + WRITE_BIT(position_state[position / 8], position % 8, true); + return bt_gatt_notify(NULL, &split_svc.attrs[1], &position_state, sizeof(position_state)); +} + +int zmk_split_bt_position_released(u8_t position) +{ + WRITE_BIT(position_state[position / 8], position % 8, false); + return bt_gatt_notify(NULL, &split_svc.attrs[1], &position_state, sizeof(position_state)); +} \ No newline at end of file diff --git a/app/src/split_listener.c b/app/src/split_listener.c new file mode 100644 index 00000000..65f835a2 --- /dev/null +++ b/app/src/split_listener.c @@ -0,0 +1,36 @@ +/* + * Copyright (c) 2020 Peter Johanson + * + * SPDX-License-Identifier: MIT + */ + +#define DT_DRV_COMPAT zmk_split_listener + +#include +#include +#include + +#include + +LOG_MODULE_DECLARE(zmk, CONFIG_ZMK_LOG_LEVEL); + +#include +#include +#include +#include + +int split_listener(const struct zmk_event_header *eh) +{ + if (is_position_state_changed(eh)) { + const struct position_state_changed *ev = cast_position_state_changed(eh); + if (ev->state) { + zmk_split_bt_position_pressed(ev->position); + } else { + zmk_split_bt_position_released(ev->position); + } + } + return 0; +} + +ZMK_LISTENER(split_listener, split_listener); +ZMK_SUBSCRIPTION(split_listener, position_state_changed); \ No newline at end of file