3 files changed, 220 insertions, 0 deletions
diff --git a/os/ex/subsystems/mfs/mfs.c b/os/ex/subsystems/mfs/mfs.c
new file mode 100644
index 000000000..7380c34a3
--- /dev/null
+++ b/os/ex/subsystems/mfs/mfs.c
@@ -0,0 +1,104 @@
+/*
+    Managed Flash Storage - Copyright (C) 2016 Giovanni Di Sirio
+
+    This file is part of ChibiOS.
+
+    ChibiOS 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 3 of the License, or
+    (at your option) any later version.
+
+    ChibiOS 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/>.
+*/
+
+/**
+ * @file    mfs.c
+ * @brief   Managed Flash Storage module code.
+ *
+ * @addtogroup mfs
+ * @{
+ */
+
+#include "hal.h"
+
+#include "mfs.h"
+
+/*===========================================================================*/
+/* Driver local definitions.                                                 */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver exported variables.                                                */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local variables and types.                                         */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local functions.                                                   */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver exported functions.                                                */
+/*===========================================================================*/
+
+/**
+ * @brief   Initializes an instance.
+ *
+ * @param[out] devp     pointer to the @p MFSDriver object
+ *
+ * @init
+ */
+void mfsObjectInit(MFSDriver *devp) {
+
+  osalDbgCheck(devp != NULL);
+
+  devp->state = MFS_STOP;
+  devp->config = NULL;
+}
+
+/**
+ * @brief   Configures and activates a MFS driver.
+ *
+ * @param[in] devp      pointer to the @p MFSDriver object
+ * @param[in] config    pointer to the configuration
+ *
+ * @api
+ */
+void mfsStart(MFSDriver *devp, const MFSConfig *config) {
+
+  osalDbgCheck((devp != NULL) && (config != NULL));
+  osalDbgAssert(devp->state != MFS_UNINIT, "invalid state");
+
+  if (devp->state == MFS_STOP) {
+
+    devp->state = MFS_READY;
+  }
+} 
+
+/**
+ * @brief   Deactivates a MFS driver.
+ *
+ * @param[in] devp       pointer to the @p MFSDriver object
+ *
+ * @api
+ */
+void mfsStop(MFSDriver *devp) {
+
+  osalDbgCheck(devp != NULL);
+  osalDbgAssert(devp->state != MFS_UNINIT, "invalid state");
+
+  if (devp->state != MFS_STOP) {
+
+    devp->state = MFS_STOP;
+  }
+}
+
+/** @} */
diff --git a/os/ex/subsystems/mfs/mfs.h b/os/ex/subsystems/mfs/mfs.h
new file mode 100644
index 000000000..a47c25c47
--- /dev/null
+++ b/os/ex/subsystems/mfs/mfs.h
@@ -0,0 +1,111 @@
+/*
+    Managed Flash Storage - Copyright (C) 2016 Giovanni Di Sirio
+
+    This file is part of ChibiOS.
+
+    ChibiOS 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 3 of the License, or
+    (at your option) any later version.
+
+    ChibiOS 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/>.
+*/
+
+/**
+ * @file    mfs.h
+ * @brief   Managed Flash Storage module header.
+ *
+ * @{
+ */
+
+#ifndef MFS_H
+#define MFS_H
+
+#include "hal_flash.h"
+
+/*===========================================================================*/
+/* Driver constants.                                                         */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver pre-compile time settings.                                         */
+/*===========================================================================*/
+
+/**
+ * @name    Configuration options
+ * @{
+ */
+/** @} */
+
+/*===========================================================================*/
+/* Derived constants and error checks.                                       */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver data structures and types.                                         */
+/*===========================================================================*/
+
+/**
+ * @brief   Driver state machine possible states.
+ */
+typedef enum {
+  MFS_UNINIT = 0,
+  MFS_STOP = 1,
+  MFS_READY = 2,
+  MFS_ACTIVE = 3
+} mfs_state_t;
+
+/**
+ * @brief   Type of a MFS configuration structure.
+ */
+typedef struct {
+  /**
+   * @brief   Flash driver associated to this MFS instance.
+   */
+  BaseFlash                 *flashp;
+} MFSConfig;
+  
+/**
+ * @extends BaseFlash
+ *
+ * @brief   Type of an MFS instance.
+ */
+typedef struct {
+  /**
+   * @brief   Driver state.
+   */
+  mfs_state_t               state;
+  /**
+   * @brief   Current configuration data.
+   */
+  const MFSConfig           *config;
+} MFSDriver;
+
+/*===========================================================================*/
+/* Driver macros.                                                            */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* External declarations.                                                    */
+/*===========================================================================*/
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+  void mfsObjectInit(MFSDriver *devp);
+  void mfsStart(MFSDriver *devp, const MFSConfig *config);
+  void mfsStop(MFSDriver *devp);
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* MFS_H */
+
+/** @} */
+
diff --git a/os/ex/subsystems/mfs/mfs.mk b/os/ex/subsystems/mfs/mfs.mk
new file mode 100644
index 000000000..488977e70
--- /dev/null
+++ b/os/ex/subsystems/mfs/mfs.mk
@@ -0,0 +1,5 @@
+# List of all the MFS subsystem files.
+MFSSRC := $(CHIBIOS)/os/ex/subsystems/mfs/mfs.c
+
+# Required include directories
+MFSINC := $(CHIBIOS)/os/ex/subsystems/mfs
+\ No newline at end of file