From c84887d021bc0d66352ead42366bd45868e1e4df Mon Sep 17 00:00:00 2001
From: heyuanjie87 <sc943313837@gmail.com>
Date: Wed, 2 Sep 2015 22:00:24 +0800
Subject: 加入定时器设备
MIME-Version: 1.0
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---
 components/drivers/include/drivers/hwtimer.h | 83 ++++++++++++++++++++++++++++
 components/drivers/include/rtdevice.h        |  4 ++
 2 files changed, 87 insertions(+)
 create mode 100644 components/drivers/include/drivers/hwtimer.h

(limited to 'components/drivers/include')

diff --git a/components/drivers/include/drivers/hwtimer.h b/components/drivers/include/drivers/hwtimer.h
new file mode 100644
index 0000000000..e5b5d4661b
--- /dev/null
+++ b/components/drivers/include/drivers/hwtimer.h
@@ -0,0 +1,83 @@
+#ifndef __HWTIMER_H__
+#define __HWTIMER_H__
+
+#include <rtthread.h>
+#include <rtdevice.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* ¶¨Ê±Æ÷¿ØÖÆÃüÁî */
+typedef enum
+{
+    HWTIMER_CTRL_TIMEOUT_SET = 0x01, /* ÉèÖó¬Ê±Öµ */
+    HWTIMER_CTRL_FREQ_SET,           /* ÉèÖüÆÊýƵÂÊ */
+    HWTIMER_CTRL_START,              /* Æô¶¯¶¨Ê±Æ÷ */
+    HWTIMER_CTRL_STOP,               /* Í£Ö¹¶¨Ê±Æ÷ */
+    HWTIMER_CTRL_INFO_GET,           /* »ñÈ¡¶¨Ê±Æ÷ÌØÕ÷ÐÅÏ¢ */
+    HWTIMER_CTRL_MODE_SET            /* ÉèÖö¨Ê±Ä£Ê½ */
+} rt_hwtimer_ctrl_t;
+
+/* ¶¨Ê±Ä£Ê½ */
+typedef enum
+{
+    HWTIMER_MODE_ONESHOT = 0x01,
+    HWTIMER_MODE_PERIOD
+} rt_hwtimer_mode_t;
+
+/* ¶¨Ê±Æ÷¼ÆÊýÖµ */
+typedef struct rt_hwtimerval
+{
+    rt_int32_t sec;      /* Ãë */
+    rt_int32_t usec;     /* ΢Ãë */
+} rt_hwtimerval_t;
+
+#define HWTIMER_CNTMODE_UP      0x01 /* ¶¨Ê±Æ÷µÝÔö¼ÆÊý·½Ê½ */
+#define HWTIMER_CNTMODE_DW      0x02 /* ¶¨Ê±Æ÷µÝ¼õ¼ÆÊý·½Ê½ */
+
+struct rt_hwtimer_device;
+
+struct rt_hwtimer_ops
+{
+    void (*init)(struct rt_hwtimer_device *timer);
+    void (*deinit)(struct rt_hwtimer_device *timer);
+    void (*start)(struct rt_hwtimer_device *timer, rt_hwtimer_mode_t mode);
+    void (*stop)(struct rt_hwtimer_device *timer);
+    rt_err_t (*timeout_set)(struct rt_hwtimer_device *timer, rt_uint32_t t);
+    rt_uint32_t (*count_get)(struct rt_hwtimer_device *timer);
+    rt_err_t (*control)(struct rt_hwtimer_device *timer, rt_uint32_t cmd, void *args);
+};
+
+/* ¶¨Ê±Æ÷»ù±¾²ÎÊý(²»¿É¶¯Ì¬¸ü¸Ä) */
+struct rt_hwtimer_info
+{
+    rt_int32_t maxfreq;    /* ¶¨Ê±Æ÷Ö§³ÖµÄ×î´ó¼ÆÊýʱÖÓ */
+    rt_int32_t minfreq;    /* ¶¨Ê±Æ÷Ö§³ÖµÄ×îС¼ÆÊýʱÖÓ */
+    rt_uint32_t maxcnt;    /* ¼ÆÊýÆ÷×î´ó³¬Ê±Öµ */
+    rt_uint8_t  cntmode;   /* ¼ÆÊýģʽ(µÝÔö/µÝ¼õ,Ó¦ÓòãÎÞÐè¹ØÐĴ˲ÎÊý) */
+};
+
+typedef struct rt_hwtimer_device
+{
+    struct rt_device parent;
+    const struct rt_hwtimer_ops *ops;
+    const struct rt_hwtimer_info *info;
+
+    /* Çý¶¯²ã²»ÓùØÐÄÒÔϲÎÊý */
+    rt_int32_t freq;                /* ¼ÆÊýƵÂÊ */
+    rt_int32_t overflow;            /* Òç³ö´ÎÊý */
+    float period_sec;               /* Òç³öÖÜÆÚ(s) */
+    rt_int32_t cycles;              /* Ñ­»·´ÎÊý */
+    rt_int32_t reload;              /* ÖØÔØcycles */
+    rt_hwtimer_mode_t mode;         /* ¶¨Ê±Ä£Ê½ */
+} rt_hwtimer_t;
+
+rt_err_t rt_device_hwtimer_register(rt_hwtimer_t *timer, const char *name, void *user_data);
+void rt_device_hwtimer_isr(rt_hwtimer_t *timer);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/components/drivers/include/rtdevice.h b/components/drivers/include/rtdevice.h
index f4d967831c..475adebf80 100644
--- a/components/drivers/include/rtdevice.h
+++ b/components/drivers/include/rtdevice.h
@@ -370,6 +370,10 @@ rt_inline void rt_work_init(struct rt_work* work, void (*work_func)(struct rt_wo
 #include "drivers/can.h"
 #endif
 
+#ifdef RT_USING_HWTIMER
+#include "drivers/hwtimer.h"
+#endif
+
 #ifdef __cplusplus
 }
 #endif
-- 
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