From 044fa3ff856393d75a80fe6625b4a5682b81b76d Mon Sep 17 00:00:00 2001
From: Wez Furlong <wez@fb.com>
Date: Sun, 27 Nov 2016 22:51:30 -0800
Subject: Connect the adafruit ble code to the lufa main loop

There are now 3 potential locations to send HID reports:

1. USB
2. The bluefruit easy key
3. Adafruit BLE

Generally speaking, if USB is connected then we should prefer to
send the reports there; it is generally the best channel for this.

The bluefruit module has no feedback about bluetooth connectivity
so the code must speculatively send reports over both USB and bluetooth.

The BLE module has connectivity feedback.  In general we want to
prefer to send HID reports over USB while connected there, even
if BLE is connected.  Except that it is convenient to force them
over BLE while testing the implementation.

This policy has been extracted out into a where_to_send function
which returns a bitmask of which of the channels should be used.
---
 tmk_core/protocol/lufa/lufa.c | 82 +++++++++++++++++++++++++++++++++++++------
 1 file changed, 71 insertions(+), 11 deletions(-)

(limited to 'tmk_core/protocol')

diff --git a/tmk_core/protocol/lufa/lufa.c b/tmk_core/protocol/lufa/lufa.c
index 39d4824b6b..ee2552c190 100644
--- a/tmk_core/protocol/lufa/lufa.c
+++ b/tmk_core/protocol/lufa/lufa.c
@@ -52,6 +52,7 @@
 #include "descriptor.h"
 #include "lufa.h"
 #include "quantum.h"
+#include <util/atomic.h>
 
 #ifdef NKRO_ENABLE
   #include "keycode_config.h"
@@ -67,13 +68,16 @@
 #ifdef BLUETOOTH_ENABLE
     #include "bluetooth.h"
 #endif
+#ifdef ADAFRUIT_BLE_ENABLE
+    #include "adafruit_ble.h"
+#endif
 
 #ifdef VIRTSER_ENABLE
     #include "virtser.h"
 #endif
 
 #if (defined(RGB_MIDI) | defined(RGBLIGHT_ANIMATIONS)) & defined(RGBLIGHT_ENABLE)
-    #include "rgblight.h"        
+    #include "rgblight.h"
 #endif
 
 #ifdef MIDI_ENABLE
@@ -297,7 +301,9 @@ void EVENT_USB_Device_WakeUp()
 #ifdef CONSOLE_ENABLE
 static bool console_flush = false;
 #define CONSOLE_FLUSH_SET(b)   do { \
-    uint8_t sreg = SREG; cli(); console_flush = b; SREG = sreg; \
+  ATOMIC_BLOCK(ATOMIC_RESTORESTATE) {\
+    console_flush = b; \
+  } \
 } while (0)
 
 // called every 1ms
@@ -501,9 +507,35 @@ static uint8_t keyboard_leds(void)
     return keyboard_led_stats;
 }
 
+#define SendToUSB 1
+#define SendToBT  2
+#define SendToBLE 4
+
+static inline uint8_t where_to_send(void) {
+#ifdef ADAFRUIT_BLE_ENABLE
+#if 0
+  if (adafruit_ble_is_connected()) {
+    // For testing, send to BLE as a priority
+    return SendToBLE;
+  }
+#endif
+
+  // This is the real policy
+  if (USB_DeviceState != DEVICE_STATE_Configured) {
+    if (adafruit_ble_is_connected()) {
+      return SendToBLE;
+    }
+  }
+#endif
+  return ((USB_DeviceState == DEVICE_STATE_Configured) ? SendToUSB : 0)
+#ifdef BLUETOOTH_ENABLE
+    || SendToBT
+#endif
+    ;
+}
+
 static void send_keyboard(report_keyboard_t *report)
 {
-
 #ifdef BLUETOOTH_ENABLE
     bluefruit_serial_send(0xFD);
     for (uint8_t i = 0; i < KEYBOARD_EPSIZE; i++) {
@@ -512,9 +544,17 @@ static void send_keyboard(report_keyboard_t *report)
 #endif
 
     uint8_t timeout = 255;
+    uint8_t where = where_to_send();
 
-    if (USB_DeviceState != DEVICE_STATE_Configured)
-        return;
+#ifdef ADAFRUIT_BLE_ENABLE
+    if (where & SendToBLE) {
+      adafruit_ble_send_keys(report->mods, report->keys, sizeof(report->keys));
+    }
+#endif
+
+    if (!(where & SendToUSB)) {
+      return;
+    }
 
     /* Select the Keyboard Report Endpoint */
 #ifdef NKRO_ENABLE
@@ -567,8 +607,17 @@ static void send_mouse(report_mouse_t *report)
 
     uint8_t timeout = 255;
 
-    if (USB_DeviceState != DEVICE_STATE_Configured)
-        return;
+    uint8_t where = where_to_send();
+
+#ifdef ADAFRUIT_BLE_ENABLE
+    if (where & SendToBLE) {
+      // FIXME: mouse buttons
+      adafruit_ble_send_mouse_move(report->x, report->y, report->v, report->h);
+    }
+#endif
+    if (!(where & SendToUSB)) {
+      return;
+    }
 
     /* Select the Mouse Report Endpoint */
     Endpoint_SelectEndpoint(MOUSE_IN_EPNUM);
@@ -626,9 +675,16 @@ static void send_consumer(uint16_t data)
 #endif
 
     uint8_t timeout = 255;
+    uint8_t where = where_to_send();
 
-    if (USB_DeviceState != DEVICE_STATE_Configured)
-        return;
+#ifdef ADAFRUIT_BLE_ENABLE
+    if (where & SendToBLE) {
+      adafruit_ble_send_consumer_key(data, 0);
+    }
+#endif
+    if (!(where & SendToUSB)) {
+      return;
+    }
 
     report_extra_t r = {
         .report_id = REPORT_ID_CONSUMER,
@@ -1038,7 +1094,7 @@ int main(void)
 
     print("Keyboard start.\n");
     while (1) {
-        #ifndef BLUETOOTH_ENABLE
+        #if !defined(BLUETOOTH_ENABLE) && !defined(ADAFRUIT_BLE_ENABLE)
         while (USB_DeviceState == DEVICE_STATE_Suspended) {
             print("[s]");
             suspend_power_down();
@@ -1054,11 +1110,15 @@ int main(void)
         midi_device_process(&midi_device);
         // MIDI_Task();
 #endif
-        
+
 #if defined(RGBLIGHT_ANIMATIONS) & defined(RGBLIGHT_ENABLE)
         rgblight_task();
 #endif
 
+#ifdef ADAFRUIT_BLE_ENABLE
+        adafruit_ble_task();
+#endif
+
 #ifdef VIRTSER_ENABLE
         virtser_task();
         CDC_Device_USBTask(&cdc_device);
-- 
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