feat(hid): Add ble_hid_enable config option

Documentation/card10-cfg.rst

@@ -47,6 +47,8 @@ Option name        Type       Description
 ------------------ ---------- -----------
 ``ble_mac``        Boolean    MAC address used for BLE. Format: ``ca:4d:10:xx:xx:xx``.
 ------------------ ---------- -----------
+``ble_hid_enable`` Boolean    Enable the Human Interface Device (HID) characteristics on BLE.
+------------------ ---------- -----------
 ``ble_log_enable`` Boolean    Activate HCI level logging of BLE data. Creates a new btsnoop compatible log file named ``ble.log`` in the ``logs`` folder after each boot if BLE is activated. Keeps the last 10 files.
 ------------------ ---------- -----------
 ``right_scroll``   Boolean    Use both right buttons to scroll up and down. Lower left button is SELECT.

epicardium/ble/ble_main.c

@@ -42,11 +42,13 @@
 #include "profiles/gap_api.h"
 #include "cccd.h"
 #include "ess.h"
+#include "hid.h"
 
 #include "ble_api.h"
 #include "epicardium.h"
 #include "api/interrupt-sender.h"
 #include "modules/log.h"
+#include "modules/config.h"
 
 #define SCAN_REPORTS_NUM	16
 
@@ -973,8 +975,6 @@ static void BleHandler(wsfEventMask_t event, wsfMsgHdr_t *pMsg)
   }
 }
 
-void hid_init(void);
-
 /*************************************************************************************************/
 /*!
  *  \brief  Start the application.
@@ -1003,7 +1003,9 @@ void BleStart(void)
   SvcBattCbackRegister(BasReadCback, NULL);
   SvcBattAddGroup();
 
+  if(config_get_boolean_with_default("ble_hid_enable", false)) {
     hid_init();
+  }
   /* Reset the device */
   DmDevReset();
 }

epicardium/ble/hid.h

@@ -12,3 +12,5 @@
 #define HIDAPP_KEYBOARD_REPORT_ID         1
 #define HIDAPP_MOUSE_REPORT_ID            2
 #define HIDAPP_CONSUMER_REPORT_ID         3
+
+void hid_init(void);

epicardium/ble/hid_work.c

@@ -196,6 +196,10 @@ void hidAppInfoCback(dmConnId_t connId, uint8_t type, uint8_t value)
 
 void HidProcMsg(wsfMsgHdr_t *pMsg)
 {
+	if (!queue) {
+		/* Not initialized (yet). */
+		return;
+	}
 	if (pMsg->event == ATTS_HANDLE_VALUE_CNF) {
 		if (pMsg->status == ATT_SUCCESS) {
 			hidAppCb.txFlags |= HIDAPP_TX_FLAGS_READY;