--- /dev/null
+/****************************************************************************
+ *
+ * Copyright 2017 Samsung Electronics All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
+ * either express or implied. See the License for the specific
+ * language governing permissions and limitations under the License.
+ *
+ ****************************************************************************/
+/****************************************************************************
+ * arch/arm/src/s5j/s5j_idle.c
+ *
+ * Copyright (C) 2011-2012, 2015-2016 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 <tinyara/config.h>
+#include <debug.h>
+
+#include <tinyara/arch.h>
+#include <tinyara/board.h>
+#include <tinyara/pm/pm.h>
+
+#include <tinyara/irq.h>
+
+#include "up_internal.h"
+#include "s5j_pm.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+#define PM_IDLE_DOMAIN 0 /* Revisit */
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+/****************************************************************************
+ * Name: up_idlepm
+ *
+ * Description:
+ * Perform IDLE state power management.
+ *
+ ****************************************************************************/
+#ifdef CONFIG_PM
+static void up_idlepm(void)
+{
+ static enum pm_state_e oldstate = PM_NORMAL;
+ enum pm_state_e newstate;
+ irqstate_t flags;
+ int ret;
+
+ /* Decide, which power saving level can be obtained */
+ newstate = pm_checkstate(PM_IDLE_DOMAIN);
+
+ /* Check for state changes */
+ if (newstate != oldstate) {
+ flags = irqsave();
+
+ /* Then force the global state change */
+ ret = pm_changestate(PM_IDLE_DOMAIN, newstate);
+ if (ret < 0) {
+ /* The new state change failed, revert to the preceding state */
+ pm_changestate(PM_IDLE_DOMAIN, oldstate);
+ } else {
+ /* Save the new state */
+ oldstate = newstate;
+ }
+
+ /* MCU-specific power management logic */
+ switch (newstate) {
+ case PM_NORMAL:
+ s5j_pmnormal();
+ break;
+
+ case PM_IDLE:
+ break;
+
+ case PM_STANDBY:
+ s5j_pmstop();
+ break;
+
+ case PM_SLEEP:
+ s5j_pmstandby();
+ break;
+
+ default:
+ break;
+ }
+
+ irqrestore(flags);
+ }
+}
+#else
+#define up_idlepm()
+#endif
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: up_idle
+ *
+ * Description:
+ * up_idle() is the logic that will be executed when their is no other
+ * ready-to-run task. This is processor idle time and will continue until
+ * some interrupt occurs to cause a context switch from the idle task.
+ *
+ * Processing in this state may be processor-specific. e.g., this is where
+ * power management operations might be performed.
+ *
+ ****************************************************************************/
+void up_idle(void)
+{
+#if defined(CONFIG_SUPPRESS_INTERRUPTS) || defined(CONFIG_SUPPRESS_TIMER_INTS)
+ /*
+ * If the system is idle and there are no timer interrupts, then process
+ * "fake" timer interrupts. Hopefully, something will wake up.
+ */
+ sched_process_timer();
+#else
+ /* Perform IDLE mode power management */
+ up_idlepm();
+
+ /* Sleep until an interrupt occurs to save power. */
+ asm("WFI");
+#endif
+}
--- /dev/null
+/****************************************************************************
+ *
+ * Copyright 2017 Samsung Electronics All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
+ * either express or implied. See the License for the specific
+ * language governing permissions and limitations under the License.
+ *
+ ****************************************************************************/
+/****************************************************************************
+ * arch/arm/src/s5j/s5j_pmnormal.c
+ *
+ * Copyright (C) 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 <tinyara/config.h>
+
+#include "up_arch.h"
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: s5j_pmnormal
+ *
+ * Description:
+ * Enter NORMAL mode.
+ *
+ ****************************************************************************/
+void s5j_pmnormal(void)
+{
+
+}
projects / rtos / tinyara.git / commitdiff