1 files changed, 112 insertions, 0 deletions
diff --git a/nuttx/drivers/power/pm_initialize.c b/nuttx/drivers/power/pm_initialize.c
new file mode 100644
index 000000000..9401fba9e
--- /dev/null
+++ b/nuttx/drivers/power/pm_initialize.c
@@ -0,0 +1,112 @@
+/****************************************************************************
+ * drivers/power/pm_initialize.c
+ *
+ *   Copyright (C) 2011-2012 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * 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 NuttX 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.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <semaphore.h>
+
+#include <nuttx/power/pm.h>
+
+#include "pm_internal.h"
+
+#ifdef CONFIG_PM
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+/* All PM global data: */
+
+struct pm_global_s g_pmglobals;
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: pm_initialize
+ *
+ * Description:
+ *   This function is called by MCU-specific one-time at power on reset in
+ *   order to initialize the power management capabilities.  This function
+ *   must be called *very* early in the intialization sequence *before* any
+ *   other device drivers are initialize (since they may attempt to register
+ *   with the power management subsystem).
+ *
+ * Input parameters:
+ *   None.
+ *
+ * Returned value:
+ *    None.
+ *
+ ****************************************************************************/
+
+void pm_initialize(void)
+{
+  /* Initialize the registry and the PM global data structures.  The PM
+   * global data structure resides in .bss which is zeroed at boot time.  So
+   * it is only required to initialize non-zero elements of the PM global
+   * data structure here.
+   */
+
+  sq_init(&g_pmglobals.registry);
+  sem_init(&g_pmglobals.regsem, 0, 1);
+}
+
+#endif /* CONFIG_PM */
+\ No newline at end of file