Merge pull request #4 from RT-Thread/master

update

3 files changed, 15 insertions, 0 deletions

diff --git a/components/drivers/include/drivers/alarm.h b/components/drivers/include/drivers/alarm.h
index dd59f4c1e8..e59c4142c7 100644
--- a/components/drivers/include/drivers/alarm.h
+++ b/components/drivers/include/drivers/alarm.h
@@ -49,6 +49,8 @@ struct rt_alarm
     rt_uint32_t flag;
     rt_alarm_callback_t callback;
     struct tm wktime;
+
+    void *user_data;
 };
 
 struct rt_alarm_setup
diff --git a/components/drivers/include/drivers/i2c.h b/components/drivers/include/drivers/i2c.h
index 17d57288cd..d93e82fc2b 100644
--- a/components/drivers/include/drivers/i2c.h
+++ b/components/drivers/include/drivers/i2c.h
@@ -23,6 +23,7 @@ extern "C" {
 #define RT_I2C_NO_START         (1u << 4)
 #define RT_I2C_IGNORE_NACK      (1u << 5)
 #define RT_I2C_NO_READ_ACK      (1u << 6)  /* when I2C reading, we do not ACK */
+#define RT_I2C_NO_STOP          (1u << 7)
 
 struct rt_i2c_msg
 {
@@ -83,6 +84,17 @@ rt_size_t rt_i2c_master_recv(struct rt_i2c_bus_device *bus,
                              rt_uint16_t               flags,
                              rt_uint8_t               *buf,
                              rt_uint32_t               count);
+
+rt_inline rt_err_t rt_i2c_bus_lock(struct rt_i2c_bus_device *bus, rt_tick_t timeout)
+{
+    return rt_mutex_take(&bus->lock, timeout);
+}
+
+rt_inline rt_err_t rt_i2c_bus_unlock(struct rt_i2c_bus_device *bus)
+{
+    return rt_mutex_release(&bus->lock);
+}
+
 int rt_i2c_core_init(void);
 
 #ifdef __cplusplus
diff --git a/components/drivers/include/ipc/ringbuffer.h b/components/drivers/include/ipc/ringbuffer.h
index 4487d02c47..2afd2ca213 100644
--- a/components/drivers/include/ipc/ringbuffer.h
+++ b/components/drivers/include/ipc/ringbuffer.h
@@ -71,6 +71,7 @@ rt_size_t rt_ringbuffer_put_force(struct rt_ringbuffer *rb, const rt_uint8_t *pt
 rt_size_t rt_ringbuffer_putchar(struct rt_ringbuffer *rb, const rt_uint8_t ch);
 rt_size_t rt_ringbuffer_putchar_force(struct rt_ringbuffer *rb, const rt_uint8_t ch);
 rt_size_t rt_ringbuffer_get(struct rt_ringbuffer *rb, rt_uint8_t *ptr, rt_uint16_t length);
+rt_size_t rt_ringbuffer_peak(struct rt_ringbuffer *rb, rt_uint8_t **ptr);
 rt_size_t rt_ringbuffer_getchar(struct rt_ringbuffer *rb, rt_uint8_t *ch);
 rt_size_t rt_ringbuffer_data_len(struct rt_ringbuffer *rb);