Diff: targets/TARGET_Realtek/TARGET_AMEBA/timer_api.c

Revision:

168:e84263d55307

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/targets/TARGET_Realtek/TARGET_AMEBA/timer_api.c	Wed Jun 21 17:46:44 2017 +0100
@@ -0,0 +1,151 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2013-2016 Realtek Semiconductor Corp.
+ *
+ * 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.
+ */
+
+#include "objects.h"
+#include "timer_api.h"
+
+#if CONFIG_TIMER_EN
+
+extern HAL_TIMER_OP HalTimerOp;
+
+extern HAL_Status HalTimerInitRtl8195a_Patch(
+    IN  VOID    *Data
+);
+
+static void gtimer_timeout_handler (uint32_t tid)
+{
+    gtimer_t *obj = (gtimer_t *)tid;
+    gtimer_irq_handler handler;
+    u8 timer_id = obj->hal_gtimer_adp.TimerId;
+    
+    if (obj->handler != NULL) {
+        handler = (gtimer_irq_handler)obj->handler;
+        handler(obj->hid);
+    }
+
+    if (!obj->is_periodcal) {
+        gtimer_stop(obj);
+    }
+
+    if(timer_id < 2) {
+        // Timer0 | Timer1: clear ISR here
+        // Timer 2~7 ISR will be cleared in HAL
+        HalTimerClearIsr(timer_id);
+    }
+}
+
+void gtimer_init (gtimer_t *obj, uint32_t tid)
+{
+    PTIMER_ADAPTER pTimerAdapter = &(obj->hal_gtimer_adp);
+
+    if ((tid == 1) || (tid == 6) || (tid == 7)) {
+        DBG_TIMER_ERR("gtimer_init: This timer is reserved for HAL driver\r\n", tid);
+        return;
+    }
+
+    if (tid > GTIMER_MAX) {
+        DBG_TIMER_ERR("gtimer_init: Invalid TimerId=%d\r\n", tid);
+        return;
+    }
+    
+    pTimerAdapter->IrqDis = 0;    // Enable Irq @ initial
+    pTimerAdapter->IrqHandle.IrqFun = (IRQ_FUN) gtimer_timeout_handler;
+    if(tid == 0) {
+        pTimerAdapter->IrqHandle.IrqNum = TIMER0_IRQ;
+    } else if(tid == 1) {
+        pTimerAdapter->IrqHandle.IrqNum = TIMER1_IRQ;
+    } else {
+        pTimerAdapter->IrqHandle.IrqNum = TIMER2_7_IRQ;
+    }
+    pTimerAdapter->IrqHandle.Priority = 0;
+    pTimerAdapter->IrqHandle.Data = (u32)obj;
+    pTimerAdapter->TimerId = (u8)tid;
+    pTimerAdapter->TimerIrqPriority = 0;
+    pTimerAdapter->TimerLoadValueUs = 0xFFFFFFFF;   // Just a whatever value
+    pTimerAdapter->TimerMode = USER_DEFINED;
+    
+    HalTimerInit ((VOID*) pTimerAdapter);
+}
+
+void gtimer_deinit (gtimer_t *obj)
+{
+    PTIMER_ADAPTER pTimerAdapter = &(obj->hal_gtimer_adp);
+    
+    HalTimerDeInit((void*)pTimerAdapter);
+}
+
+uint32_t gtimer_read_tick (gtimer_t *obj)
+{
+    PTIMER_ADAPTER pTimerAdapter = &obj->hal_gtimer_adp;
+    
+    return (HalTimerOp.HalTimerReadCount(pTimerAdapter->TimerId));
+}
+
+uint64_t gtimer_read_us (gtimer_t *obj)
+{
+    uint64_t time_us;
+
+    time_us = gtimer_read_tick(obj)*1000000/32768;
+
+    return (time_us);
+}
+
+void gtimer_reload (gtimer_t *obj, uint32_t duration_us)
+{
+    PTIMER_ADAPTER pTimerAdapter = &obj->hal_gtimer_adp;
+
+    HalTimerReLoad(pTimerAdapter->TimerId, duration_us);
+}
+
+
+void gtimer_start (gtimer_t *obj)
+{
+    PTIMER_ADAPTER pTimerAdapter = &obj->hal_gtimer_adp;
+    u8 TimerId = pTimerAdapter->TimerId;
+
+  HalTimerEnable(TimerId); 
+}
+
+void gtimer_start_one_shout (gtimer_t *obj, uint32_t duration_us, void* handler, uint32_t hid)
+{
+    obj->is_periodcal = _FALSE;
+    obj->handler = handler;
+    obj->hid = hid;
+    gtimer_reload(obj, duration_us);
+    gtimer_start(obj);
+}
+
+void gtimer_start_periodical (gtimer_t *obj, uint32_t duration_us, void* handler, uint32_t hid)
+{
+    obj->is_periodcal = _TRUE;
+    obj->handler = handler;
+    obj->hid = hid;
+    if (duration_us > GTIMER_TICK_US) {
+        // reload will takes extra 1 tick
+        duration_us -= GTIMER_TICK_US;
+    }
+    gtimer_reload(obj, duration_us);
+    gtimer_start(obj);
+}
+
+void gtimer_stop (gtimer_t *obj)
+{
+    PTIMER_ADAPTER pTimerAdapter = &obj->hal_gtimer_adp;
+    HalTimerDisable(pTimerAdapter->TimerId);    
+}
+
+#endif  // end of "#if CONFIG_TIMER_EN"
+