Added NXP JN516x platform

2015-09-21 10:57:54 +02:00 · 2015-09-21 10:57:54 +02:00 · bd7d45080d
commit bd7d45080d
parent b8cccb6d3c
50 changed files with 7365 additions and 0 deletions
--- a/platform/jn516x/dev/rtimer-arch.c
+++ b/platform/jn516x/dev/rtimer-arch.c
@ -0,0 +1,138 @@
+/*
+ * Copyright (c) 2014, SICS Swedish ICT.
+ * 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 of the Institute 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 INSTITUTE 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 INSTITUTE 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.
+ *
+ * This file is part of the Contiki operating system.
+ *
+ */
+
+/**
+ * \file
+ *         RTIMER for NXP jn516x
+ * \author
+ *         Beshr Al Nahas <beshr@sics.se>
+ */
+
+#include "sys/rtimer.h"
+#include "sys/clock.h"
+#include <AppHardwareApi.h>
+#include <PeripheralRegs.h>
+#include "dev/watchdog.h"
+#include "sys/energest.h"
+
+#define RTIMER_TIMER_ISR_DEV  E_AHI_DEVICE_TICK_TIMER
+
+#define DEBUG 0
+#if DEBUG
+#include <stdio.h>
+#define PRINTF(...) printf(__VA_ARGS__)
+#else
+#define PRINTF(...)
+#endif
+
+static volatile uint32_t compare_time;
+static volatile uint32_t last_expired_time;
+
+void
+rtimer_arch_run_next(uint32 u32DeviceId, uint32 u32ItemBitmap)
+{
+  uint32_t delta, temp;
+  if(u32DeviceId != RTIMER_TIMER_ISR_DEV) {
+    return;
+  }
+  ENERGEST_ON(ENERGEST_TYPE_IRQ);
+  vAHI_TickTimerIntPendClr();
+  vAHI_TickTimerIntEnable(0);
+  /*
+   * compare register is only 28bits wide so make sure the upper 4bits match
+   * the set compare point
+   */
+  delta = u32AHI_TickTimerRead() - compare_time;
+  if(0 == (delta >> 28)) {
+    /* compare_time might change after executing rtimer_run_next()
+     * as some process might schedule the timer
+     */
+    temp = compare_time;
+
+    /* run scheduled */
+    watchdog_start();
+    rtimer_run_next();
+
+    if(process_nevents() > 0) {
+      /* TODO exit low-power mode */
+    }
+
+    watchdog_stop();
+    last_expired_time = temp;
+  } else {
+    /* No match. Schedule again. */
+    vAHI_TickTimerIntEnable(1);
+    vAHI_TickTimerInterval(compare_time);
+  }
+  ENERGEST_OFF(ENERGEST_TYPE_IRQ);
+}
+/*---------------------------------------------------------------------------*/
+void
+rtimer_arch_init(void)
+{
+  /* Initialise tick timer to run continuously */
+  vAHI_TickTimerIntEnable(0);
+  vAHI_TickTimerConfigure(E_AHI_TICK_TIMER_DISABLE);
+  last_expired_time = compare_time = 0;
+  vAHI_TickTimerWrite(0);
+  vAHI_TickTimerRegisterCallback(rtimer_arch_run_next);
+  vAHI_TickTimerConfigure(E_AHI_TICK_TIMER_CONT);
+}
+/*---------------------------------------------------------------------------*/
+rtimer_clock_t
+rtimer_arch_now(void)
+{
+  return u32AHI_TickTimerRead();
+}
+/*---------------------------------------------------------------------------*/
+void
+rtimer_arch_schedule(rtimer_clock_t t)
+{
+  PRINTF("rtimer_arch_schedule time %lu\n", t);
+  vAHI_TickTimerIntPendClr();
+  vAHI_TickTimerIntEnable(1);
+  vAHI_TickTimerInterval(t);
+  compare_time = t;
+}
+/*---------------------------------------------------------------------------*/
+rtimer_clock_t
+rtimer_arch_get_time_until_next_wakeup(void)
+{
+  rtimer_clock_t now = RTIMER_NOW();
+  rtimer_clock_t next_wakeup = compare_time;
+  if(bAHI_TickTimerIntStatus()) {
+    return next_wakeup >= now ? next_wakeup - now : 0;
+    /* if no wakeup is scheduled yet return maximum time */
+  }
+  return (rtimer_clock_t)-1;
+}
+/*---------------------------------------------------------------------------*/