Bluetooth: Add skeleton for HCI core

To introduce the Bluetooth stack to the tree we need some additions to
the configuration options, as well as the very basic header files. The
patch also adds a skeleton for a bt_init() function that applications
will need to call to initialize Bluetooth functionality.

Change-Id: Ideb24dfea584b71f514e05eb47654b659776133e
Co-authored-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>

arch/x86/generic_pc/system.c

@@ -147,6 +147,18 @@ static void consoleInit(void)
 	} while ((0))
 #endif /* DO_CONSOLE_INIT */
 
+#if defined(CONFIG_BLUETOOTH)
+
+static void bluetooth_init(void)
+{
+}
+
+#else
+#define bluetooth_init()	\
+	do {/* nothing */	\
+	} while ((0))
+#endif /* BLUETOOTH */
+
 /*******************************************************************************
 *
 * _InitHardware - perform basic hardware initialization
@@ -170,4 +182,5 @@ void _InitHardware(void)
 	 */
 	ioapicInit();   /* NOP if not needed */
 	consoleInit(); /* NOP if not needed */
+	bluetooth_init(); /* NOP if not needed */
 }

include/bluetooth/bluetooth.h

@@ -0,0 +1,38 @@
+/* bluetooth.h - HCI core Bluetooth definitions */
+
+/*
+ * Copyright (c) 2015 Intel Corporation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1) Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ *
+ * 2) Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * 3) Neither the name of Intel Corporation nor the names of its contributors
+ * may be used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef __BT_BLUETOOTH_H
+#define __BT_BLUETOOTH_H
+
+/* Initialize Bluetooth. Must be the called before anything else. */
+int bt_init(void);
+
+#endif /* __BT_BLUETOOTH_H */

kernel/defs.objs

@@ -7,6 +7,9 @@ endif
 iDEFS_OBJS_MICROKERNEL_y = ${vBASE}/kernel/microkernel/defs.objs
 include ${iDEFS_OBJS_MICROKERNEL_${CONFIG_MICROKERNEL}}
 
+# networking
+include ${vBASE}/net/defs.objs
+
 # utilities
 include ${vBASE}/kernel/common/util/defs.objs
 

make/target/kconfig/modules/bluetooth.kconf

@@ -0,0 +1,42 @@
+# bluetooth.kconf - Bluetooth LE configuration options
+
+#
+# Copyright (c) 2015 Intel Corporation
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#
+# 1) Redistributions of source code must retain the above copyright notice,
+# this list of conditions and the following disclaimer.
+#
+# 2) Redistributions in binary form must reproduce the above copyright notice,
+# this list of conditions and the following disclaimer in the documentation
+# and/or other materials provided with the distribution.
+#
+# 3) Neither the name of Intel Corporation nor the names of its contributors
+# may be used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+#
+
+#
+# Bluetooth options
+#
+
+config	BLUETOOTH
+	bool
+	prompt "Bluetooth LE support [EXPERIMENTAL]"
+	default n
+	help
+	  This option enables Bluetooth Low Energy support.

make/target/kconfig/nkernel.kconf

@@ -61,3 +61,6 @@ source "build.kconf"
 
 # This is for creating the NLI files on-the-fly
 source "nli.kconf"
+
+# Include Bluetooth configuration
+source "bluetooth.kconf"

make/target/kconfig/ukernel.kconf

@@ -64,3 +64,4 @@ source "kernel-core.kconf"
 source "bsp.kconf"
 source "build.kconf"
 source "nli.kconf"
+source "bluetooth.kconf"

net/bluetooth/hci_core.c

@@ -0,0 +1,38 @@
+/* hci_core.c - HCI core Bluetooth handling */
+
+/*
+ * Copyright (c) 2015 Intel Corporation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1) Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ *
+ * 2) Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * 3) Neither the name of Intel Corporation nor the names of its contributors
+ * may be used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <bluetooth/bluetooth.h>
+
+int bt_init(void)
+{
+	return 0;
+}

net/defs.objs

@@ -0,0 +1,48 @@
+# defs.objs - Net build system
+
+#
+# Copyright (c) 2015 Intel Corporation.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#
+# 1) Redistributions of source code must retain the above copyright notice,
+# this list of conditions and the following disclaimer.
+#
+# 2) Redistributions in binary form must reproduce the above copyright notice,
+# this list of conditions and the following disclaimer in the documentation
+# and/or other materials provided with the distribution.
+#
+# 3) Neither the name of Intel Corporation nor the names of its contributors
+# may be used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+#
+
+net_BASE = ${vBASE}/net/
+
+net_INCLUDE_DIR = $(strip \
+)
+
+net_PATH_BLUETOOTH_y = bluetooth
+net_PATH = $(strip \
+	${net_PATH_BLUETOOTH_${CONFIG_BLUETOOTH}} \
+)
+
+net_ABS_PATH = $(addprefix ${net_BASE},${net_PATH})
+
+net_SRC :=
+net_SRC += $(foreach path,${net_ABS_PATH},$(wildcard ${path}/*.$c))
+
+KLIBS += net