px4fmu-v2:Added HW manifest (only support PX4IO) for now

   This is the beginning of the manifest support on FMUv2/v3
   it only provide PX4_MFT_PX4IO for now.

src/drivers/boards/px4fmu-v2/CMakeLists.txt

@@ -39,6 +39,7 @@ px4_add_library(drivers_board
 	spi.c
 	timer_config.c
 	usb.c
+	manifest.c
 )
 
 target_link_libraries(drivers_board

src/drivers/boards/px4fmu-v2/manifest.c

+/****************************************************************************
+ *
+ *   Copyright (c) 2018 PX4 Development Team. All rights reserved.
+ *
+ * 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 PX4 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 OWNER 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.
+ *
+ ****************************************************************************/
+
+/**
+ * @file manifest.c
+ *
+ * This module supplies the interface to the manifest of hardware that is
+ * optional and dependent on the simple Hardware versioning
+ * BOARD_HAS_SIMPLE_HW_VERSIONING
+ *
+ * The manifest allows the system to know whether a hardware option
+ * say for example the PX4IO is an no-pop option vs it is broken.
+ *
+ */
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <px4_config.h>
+#include <stdbool.h>
+#include "systemlib/px4_macros.h"
+#include "px4_log.h"
+
+/****************************************************************************
+ * Pre-Processor Definitions
+ ****************************************************************************/
+
+typedef struct {
+	uint32_t                hw_ver_rev; /* the version and revision */
+	const px4_hw_mft_item_t *mft;       /* The first entry */
+	uint32_t                entries;    /* the lenght of the list */
+} px4_hw_mft_list_entry_t;
+
+typedef px4_hw_mft_list_entry_t *px4_hw_mft_list_entry;
+#define px4_hw_mft_list_uninitialized (px4_hw_mft_list_entry) -1
+
+static const px4_hw_mft_item_t device_unsupported = {0, 0, 0};
+
+static const px4_hw_mft_item_t hw_mft_list_v90008[] = {
+	{
+		.present     = 1,
+		.mandatory   = 1,
+		.connection  = px4_hw_con_onboard,
+	},
+};
+
+static const px4_hw_mft_item_t hw_mft_list_v9000a[] = {
+	{
+		.present     = 1,
+		.mandatory   = 1,
+		.connection  = px4_hw_con_onboard,
+	},
+};
+static const px4_hw_mft_item_t hw_mft_list_v9000b[] = {
+	{
+		.present     = 1,
+		.mandatory   = 1,
+		.connection  = px4_hw_con_onboard,
+	},
+};
+static const px4_hw_mft_item_t hw_mft_list_v9000e[] = {
+	{
+		.present     = 1,
+		.mandatory   = 1,
+		.connection  = px4_hw_con_onboard,
+	},
+};
+
+static px4_hw_mft_list_entry_t mft_lists[] = {
+	{0x90008, hw_mft_list_v90008, arraySize(hw_mft_list_v90008)},
+	{0x9000a, hw_mft_list_v9000e, arraySize(hw_mft_list_v9000a)},
+	{0x9000b, hw_mft_list_v9000b, arraySize(hw_mft_list_v9000b)},
+	{0x9000e, hw_mft_list_v9000e, arraySize(hw_mft_list_v9000e)},
+};
+
+/************************************************************************************
+ * Name: board_query_manifest
+ *
+ * Description:
+ *   Optional returns manifest item.
+ *
+ * Input Parameters:
+ *   manifest_id - the ID for the manifest item to retrieve
+ *
+ * Returned Value:
+ *   0 - item is not in manifest => assume legacy operations
+ *   pointer to a manifest item
+ *
+ ************************************************************************************/
+
+__EXPORT px4_hw_mft_item board_query_manifest(px4_hw_mft_item_id_t id)
+{
+	static px4_hw_mft_list_entry boards_manifest = px4_hw_mft_list_uninitialized;
+
+	if (boards_manifest == px4_hw_mft_list_uninitialized) {
+		uint32_t ver_rev = board_get_hw_version();
+
+		for (unsigned i = 0; i < arraySize(mft_lists); i++) {
+			if (mft_lists[i].hw_ver_rev == ver_rev) {
+				boards_manifest = &mft_lists[i];
+				break;
+			}
+		}
+
+		if (boards_manifest == px4_hw_mft_list_uninitialized) {
+			PX4_ERR("Board %4x is not supported!", ver_rev);
+		}
+	}
+
+	px4_hw_mft_item rv = &device_unsupported;
+
+	if (boards_manifest != px4_hw_mft_list_uninitialized &&
+	    id < boards_manifest->entries) {
+		rv = &boards_manifest->mft[id];
+	}
+
+	return rv;
+}