Start Bluetooth API (#18366)

7 files changed, 150 insertions, 76 deletions

diff --git a/builddefs/common_features.mk b/builddefs/common_features.mk
index 0e9e45220f..951932ade9 100644
--- a/builddefs/common_features.mk
+++ b/builddefs/common_features.mk
@@ -882,7 +882,7 @@ ifeq ($(strip $(BLUETOOTH_ENABLE)), yes)
     OPT_DEFS += -DBLUETOOTH_ENABLE
     NO_USB_STARTUP_CHECK := yes
     COMMON_VPATH += $(DRIVER_PATH)/bluetooth
-    SRC += outputselect.c
+    SRC += outputselect.c bluetooth.c
 
     ifeq ($(strip $(BLUETOOTH_DRIVER)), BluefruitLE)
         OPT_DEFS += -DBLUETOOTH_BLUEFRUIT_LE -DHAL_USE_SPI=TRUE
diff --git a/drivers/bluetooth/bluefruit_le.cpp b/drivers/bluetooth/bluefruit_le.cpp
index 50170b83fe..39c14ddd13 100644
--- a/drivers/bluetooth/bluefruit_le.cpp
+++ b/drivers/bluetooth/bluefruit_le.cpp
@@ -5,7 +5,7 @@
 #include <alloca.h>
 #include "debug.h"
 #include "timer.h"
-#include "action_util.h"
+#include "gpio.h"
 #include "ringbuffer.hpp"
 #include <string.h>
 #include "spi_master.h"
@@ -288,7 +288,7 @@ static void resp_buf_wait(const char *cmd) {
     }
 }
 
-static bool ble_init(void) {
+void bluefruit_le_init(void) {
     state.initialized  = false;
     state.configured   = false;
     state.is_connected = false;
@@ -307,7 +307,6 @@ static bool ble_init(void) {
     wait_ms(1000); // Give it a second to initialize
 
     state.initialized = true;
-    return state.initialized;
 }
 
 static inline uint8_t min(uint8_t a, uint8_t b) {
@@ -431,7 +430,7 @@ bool bluefruit_le_is_connected(void) {
 bool bluefruit_le_enable_keyboard(void) {
     char resbuf[128];
 
-    if (!state.initialized && !ble_init()) {
+    if (!state.initialized) {
         return false;
     }
 
@@ -613,41 +612,24 @@ static bool process_queue_item(struct queue_item *item, uint16_t timeout) {
     }
 }
 
-void bluefruit_le_send_keys(uint8_t hid_modifier_mask, uint8_t *keys, uint8_t nkeys) {
+void bluefruit_le_send_keyboard(report_keyboard_t *report) {
     struct queue_item item;
-    bool              didWait = false;
 
     item.queue_type   = QTKeyReport;
-    item.key.modifier = hid_modifier_mask;
-    item.added        = timer_read();
-
-    while (nkeys >= 0) {
-        item.key.keys[0] = keys[0];
-        item.key.keys[1] = nkeys >= 1 ? keys[1] : 0;
-        item.key.keys[2] = nkeys >= 2 ? keys[2] : 0;
-        item.key.keys[3] = nkeys >= 3 ? keys[3] : 0;
-        item.key.keys[4] = nkeys >= 4 ? keys[4] : 0;
-        item.key.keys[5] = nkeys >= 5 ? keys[5] : 0;
-
-        if (!send_buf.enqueue(item)) {
-            if (!didWait) {
-                dprint("wait for buf space\n");
-                didWait = true;
-            }
-            send_buf_send_one();
-            continue;
-        }
-
-        if (nkeys <= 6) {
-            return;
-        }
+    item.key.modifier = report->mods;
+    item.key.keys[0]  = report->keys[0];
+    item.key.keys[1]  = report->keys[1];
+    item.key.keys[2]  = report->keys[2];
+    item.key.keys[3]  = report->keys[3];
+    item.key.keys[4]  = report->keys[4];
+    item.key.keys[5]  = report->keys[5];
 
-        nkeys -= 6;
-        keys += 6;
+    while (!send_buf.enqueue(item)) {
+        send_buf_send_one();
     }
 }
 
-void bluefruit_le_send_consumer_key(uint16_t usage) {
+void bluefruit_le_send_consumer(uint16_t usage) {
     struct queue_item item;
 
     item.queue_type = QTConsumer;
@@ -658,15 +640,15 @@ void bluefruit_le_send_consumer_key(uint16_t usage) {
     }
 }
 
-void bluefruit_le_send_mouse_move(int8_t x, int8_t y, int8_t scroll, int8_t pan, uint8_t buttons) {
+void bluefruit_le_send_mouse(report_mouse_t *report) {
     struct queue_item item;
 
     item.queue_type        = QTMouseMove;
-    item.mousemove.x       = x;
-    item.mousemove.y       = y;
-    item.mousemove.scroll  = scroll;
-    item.mousemove.pan     = pan;
-    item.mousemove.buttons = buttons;
+    item.mousemove.x       = report->x;
+    item.mousemove.y       = report->y;
+    item.mousemove.scroll  = report->v;
+    item.mousemove.pan     = report->h;
+    item.mousemove.buttons = report->buttons;
 
     while (!send_buf.enqueue(item)) {
         send_buf_send_one();
diff --git a/drivers/bluetooth/bluefruit_le.h b/drivers/bluetooth/bluefruit_le.h
index 731ba2e370..a3de03c35c 100644
--- a/drivers/bluetooth/bluefruit_le.h
+++ b/drivers/bluetooth/bluefruit_le.h
@@ -7,9 +7,7 @@
 
 #include <stdbool.h>
 #include <stdint.h>
-#include <string.h>
-
-#include "config_common.h"
+#include "report.h"
 
 #ifdef __cplusplus
 extern "C" {
@@ -26,6 +24,8 @@ extern bool bluefruit_le_query_is_connected(void);
  * calling ble_task() periodically. */
 extern bool bluefruit_le_is_connected(void);
 
+extern void bluefruit_le_init(void);
+
 /* Call this periodically to process BLE-originated things */
 extern void bluefruit_le_task(void);
 
@@ -34,16 +34,16 @@ extern void bluefruit_le_task(void);
  * this set of keys.
  * Also sends a key release indicator, so that the keys do not remain
  * held down. */
-extern void bluefruit_le_send_keys(uint8_t hid_modifier_mask, uint8_t *keys, uint8_t nkeys);
+extern void bluefruit_le_send_keyboard(report_keyboard_t *report);
 
 /* Send a consumer usage.
  * (milliseconds) */
-extern void bluefruit_le_send_consumer_key(uint16_t usage);
+extern void bluefruit_le_send_consumer(uint16_t usage);
 
 /* Send a mouse/wheel movement report.
  * The parameters are signed and indicate positive or negative direction
  * change. */
-extern void bluefruit_le_send_mouse_move(int8_t x, int8_t y, int8_t scroll, int8_t pan, uint8_t buttons);
+extern void bluefruit_le_send_mouse(report_mouse_t *report);
 
 /* Compute battery voltage by reading an analog pin.
  * Returns the integer number of millivolts */
diff --git a/drivers/bluetooth/bluetooth.c b/drivers/bluetooth/bluetooth.c
new file mode 100644
index 0000000000..d5382401e7
--- /dev/null
+++ b/drivers/bluetooth/bluetooth.c
@@ -0,0 +1,62 @@
+/*
+ * Copyright 2022
+ *
+ * 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 "bluetooth.h"
+
+#if defined(BLUETOOTH_BLUEFRUIT_LE)
+#    include "bluefruit_le.h"
+#elif defined(BLUETOOTH_RN42)
+#    include "rn42.h"
+#endif
+
+void bluetooth_init(void) {
+#if defined(BLUETOOTH_BLUEFRUIT_LE)
+    bluefruit_le_init();
+#elif defined(BLUETOOTH_RN42)
+    rn42_init();
+#endif
+}
+
+void bluetooth_task(void) {
+#if defined(BLUETOOTH_BLUEFRUIT_LE)
+    bluefruit_le_task();
+#endif
+}
+
+void bluetooth_send_keyboard(report_keyboard_t *report) {
+#if defined(BLUETOOTH_BLUEFRUIT_LE)
+    bluefruit_le_send_keyboard(report);
+#elif defined(BLUETOOTH_RN42)
+    rn42_send_keyboard(report);
+#endif
+}
+
+void bluetooth_send_mouse(report_mouse_t *report) {
+#if defined(BLUETOOTH_BLUEFRUIT_LE)
+    bluefruit_le_send_mouse(report);
+#elif defined(BLUETOOTH_RN42)
+    rn42_send_mouse(report);
+#endif
+}
+
+void bluetooth_send_consumer(uint16_t usage) {
+#if defined(BLUETOOTH_BLUEFRUIT_LE)
+    bluefruit_le_send_consumer(usage);
+#elif defined(BLUETOOTH_RN42)
+    rn42_send_consumer(usage);
+#endif
+}
diff --git a/drivers/bluetooth/bluetooth.h b/drivers/bluetooth/bluetooth.h
new file mode 100644
index 0000000000..a923dfe60c
--- /dev/null
+++ b/drivers/bluetooth/bluetooth.h
@@ -0,0 +1,52 @@
+/*
+ * Copyright 2022
+ *
+ * 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/>.
+ */
+
+#pragma once
+
+#include <stdint.h>
+#include "report.h"
+
+/**
+ * \brief Initialize the Bluetooth system.
+ */
+void bluetooth_init(void);
+
+/**
+ * \brief Perform housekeeping tasks.
+ */
+void bluetooth_task(void);
+
+/**
+ * \brief Send a keyboard report.
+ * 
+ * \param report The keyboard report to send.
+ */
+void bluetooth_send_keyboard(report_keyboard_t *report);
+
+/**
+ * \brief Send a mouse report.
+ * 
+ * \param report The mouse report to send.
+ */
+void bluetooth_send_mouse(report_mouse_t *report);
+
+/**
+ * \brief Send a consumer usage.
+ * 
+ * \param usage The consumer usage to send.
+ */
+void bluetooth_send_consumer(uint16_t usage);
diff --git a/quantum/keyboard.c b/quantum/keyboard.c
index c8025d059b..626e0a7ee1 100644
--- a/quantum/keyboard.c
+++ b/quantum/keyboard.c
@@ -106,12 +106,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #    include "split_util.h"
 #endif
 #ifdef BLUETOOTH_ENABLE
-#    include "outputselect.h"
-#    ifdef BLUETOOTH_BLUEFRUIT_LE
-#        include "bluefruit_le.h"
-#    elif BLUETOOTH_RN42
-#        include "rn42.h"
-#    endif
+#    include "bluetooth.h"
 #endif
 #ifdef CAPS_WORD_ENABLE
 #    include "caps_word.h"
@@ -411,8 +406,8 @@ void keyboard_init(void) {
     // init after split init
     pointing_device_init();
 #endif
-#if defined(BLUETOOTH_RN42)
-    rn42_init();
+#ifdef BLUETOOTH_ENABLE
+    bluetooth_init();
 #endif
 
 #if defined(DEBUG_MATRIX_SCAN_RATE) && defined(CONSOLE_ENABLE)
@@ -674,8 +669,8 @@ void keyboard_task(void) {
     programmable_button_send();
 #endif
 
-#ifdef BLUETOOTH_BLUEFRUIT_LE
-    bluefruit_le_task();
+#ifdef BLUETOOTH_ENABLE
+    bluetooth_task();
 #endif
 
     led_task();
diff --git a/tmk_core/protocol/host.c b/tmk_core/protocol/host.c
index 99298ad6d6..7b051a881b 100644
--- a/tmk_core/protocol/host.c
+++ b/tmk_core/protocol/host.c
@@ -29,12 +29,8 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #endif
 
 #ifdef BLUETOOTH_ENABLE
+#    include "bluetooth.h"
 #    include "outputselect.h"
-#    ifdef BLUETOOTH_BLUEFRUIT_LE
-#        include "bluefruit_le.h"
-#    elif BLUETOOTH_RN42
-#        include "rn42.h"
-#    endif
 #endif
 
 #ifdef NKRO_ENABLE
@@ -78,11 +74,7 @@ led_t host_keyboard_led_state(void) {
 void host_keyboard_send(report_keyboard_t *report) {
 #ifdef BLUETOOTH_ENABLE
     if (where_to_send() == OUTPUT_BLUETOOTH) {
-#    ifdef BLUETOOTH_BLUEFRUIT_LE
-        bluefruit_le_send_keys(report->mods, report->keys, sizeof(report->keys));
-#    elif BLUETOOTH_RN42
-        rn42_send_keyboard(report);
-#    endif
+        bluetooth_send_keyboard(report);
         return;
     }
 #endif
@@ -116,12 +108,7 @@ void host_keyboard_send(report_keyboard_t *report) {
 void host_mouse_send(report_mouse_t *report) {
 #ifdef BLUETOOTH_ENABLE
     if (where_to_send() == OUTPUT_BLUETOOTH) {
-#    ifdef BLUETOOTH_BLUEFRUIT_LE
-        // FIXME: mouse buttons
-        bluefruit_le_send_mouse_move(report->x, report->y, report->v, report->h, report->buttons);
-#    elif BLUETOOTH_RN42
-        rn42_send_mouse(report);
-#    endif
+        bluetooth_send_mouse(report);
         return;
     }
 #endif
@@ -152,11 +139,7 @@ void host_consumer_send(uint16_t report) {
 
 #ifdef BLUETOOTH_ENABLE
     if (where_to_send() == OUTPUT_BLUETOOTH) {
-#    ifdef BLUETOOTH_BLUEFRUIT_LE
-        bluefruit_le_send_consumer_key(report);
-#    elif BLUETOOTH_RN42
-        rn42_send_consumer(report);
-#    endif
+        bluetooth_send_consumer(report);
         return;
     }
 #endif