[Kernel] Add device ops feature.

1 files changed, 20 insertions, 4 deletions

diff --git a/components/drivers/hwtimer/hwtimer.c b/components/drivers/hwtimer/hwtimer.c
index 066c5f6f6c..c3e5076343 100644
--- a/components/drivers/hwtimer/hwtimer.c
+++ b/components/drivers/hwtimer/hwtimer.c
@@ -35,13 +35,13 @@ rt_inline rt_uint32_t timeout_calc(rt_hwtimer_t *timer, rt_hwtimerval_t *tv)
     float devi_min = 1;
     float devi;
 
-    /* �Ѷ�ʱ�����ʱ��Ͷ�ʱʱ�任����� */
+    /* changed to second */
     overflow = timer->info->maxcnt/(float)timer->freq;
     tv_sec = tv->sec + tv->usec/(float)1000000;
 
     if (tv_sec < (1/(float)timer->freq))
     {
-        /* ��ʱʱ��С�ڼ������� */
+        /* little timeout */
         i = 0;
         timeout = 1/(float)timer->freq;
     }
@@ -55,7 +55,7 @@ rt_inline rt_uint32_t timeout_calc(rt_hwtimer_t *timer, rt_hwtimerval_t *tv)
             {
                 counter = timeout*timer->freq;
                 devi = tv_sec - (counter/(float)timer->freq)*i;
-                /* ��������� */
+                /* Minimum calculation error */
                 if (devi > devi_min)
                 {
                     i = index;
@@ -89,7 +89,7 @@ static rt_err_t rt_hwtimer_init(struct rt_device *dev)
     rt_hwtimer_t *timer;
 
     timer = (rt_hwtimer_t *)dev;
-    /* ���Խ�Ĭ�ϼ���Ƶ����Ϊ1Mhz */
+    /* try to change to 1MHz */
     if ((1000000 <= timer->info->maxfreq) && (1000000 >= timer->info->minfreq))
     {
         timer->freq = 1000000;
@@ -330,6 +330,18 @@ void rt_device_hwtimer_isr(rt_hwtimer_t *timer)
     }
 }
 
+#ifdef RT_USING_DEVICE_OPS
+const static struct rt_device_ops hwtimer_ops = 
+{
+    rt_hwtimer_init,
+    rt_hwtimer_open,
+    rt_hwtimer_close,
+    rt_hwtimer_read,
+    rt_hwtimer_write,
+    rt_hwtimer_control
+};
+#endif
+
 rt_err_t rt_device_hwtimer_register(rt_hwtimer_t *timer, const char *name, void *user_data)
 {
     struct rt_device *device;
@@ -344,12 +356,16 @@ rt_err_t rt_device_hwtimer_register(rt_hwtimer_t *timer, const char *name, void
     device->rx_indicate = RT_NULL;
     device->tx_complete = RT_NULL;
 
+#ifdef RT_USING_DEVICE_OPS
+    device->ops         = &hwtimer_ops;
+#else
     device->init        = rt_hwtimer_init;
     device->open        = rt_hwtimer_open;
     device->close       = rt_hwtimer_close;
     device->read        = rt_hwtimer_read;
     device->write       = rt_hwtimer_write;
     device->control     = rt_hwtimer_control;
+#endif
     device->user_data   = user_data;
 
     return rt_device_register(device, name, RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_STANDALONE);