diff options
Diffstat (limited to 'include/usbh_hubbed.h')
| -rw-r--r-- | include/usbh_hubbed.h | 53 |
1 files changed, 47 insertions, 6 deletions
diff --git a/include/usbh_hubbed.h b/include/usbh_hubbed.h index f99108d..ca4a489 100644 --- a/include/usbh_hubbed.h +++ b/include/usbh_hubbed.h @@ -40,7 +40,7 @@ BEGIN_DECLS
-// set to -1 to unused items
+/// set to -1 for unused items ("don't care" functionality) @see find_driver()
struct _usbh_dev_driver_info {
int32_t deviceClass;
int32_t deviceSubClass;
@@ -54,22 +54,63 @@ struct _usbh_dev_driver_info { typedef struct _usbh_dev_driver_info usbh_dev_driver_info_t;
struct _usbh_dev_driver {
+ /**
+ * @brief init is initialization routine of the device driver
+ *
+ * This function is called during the initialization of the device driver
+ */
void *(*init)(void *usbh_dev);
- bool (*analyze_descriptor)(void *drv, void *descriptor);
+
+ /**
+ * @brief analyze descriptor
+ * @param[in/out] drvdata is the device driver's private data
+ * @param[in] descriptor is the pointer to the descriptor that should
+ * be parsed in order to prepare driver to be loaded
+ *
+ * @retval true when the enumeration is complete and the driver is ready to be used
+ * @retval false when the device driver is not ready to be used
+ *
+ * This should be used for getting correct endpoint numbers, getting maximum sizes of endpoints.
+ * Should return true, when no more data is needed.
+ *
+ */
+ bool (*analyze_descriptor)(void *drvdata, void *descriptor);
+
+ /**
+ * @brief poll method is called periodically by the library core (@see usbh_poll())
+ * @param[in/out] drvdata is the device driver's private data
+ * @param[in] time_curr_us current timestamp in microseconds
+ */
void (*poll)(void *drvdata, uint32_t time_curr_us);
+
+ /**
+ * @brief unloads the device driver
+ * @param[in/out] drvdata is the device driver's private data
+ *
+ * This should free any data associated with this device
+ */
void (*remove)(void *drvdata);
+
+ /**
+ * @brief info - compatibility information about the driver. It is used by the core during device enumeration (@see find_driver())
+ */
const usbh_dev_driver_info_t * const info;
};
typedef struct _usbh_dev_driver usbh_dev_driver_t;
-void usbh_init(const void *drivers[], const usbh_dev_driver_t * const device_drivers[]);
+/**
+ * @brief usbh_init
+ * @param low_level_drivers list of the low level drivers to be used by this library
+ * @param device_drivers list of the device drivers that could be used with attached devices
+ */
+void usbh_init(const void *low_level_drivers[], const usbh_dev_driver_t * const device_drivers[]);
/**
- * \brief usbh_poll
- * \param time_curr_us - use monotically rising time
+ * @brief usbh_poll
+ * @param time_curr_us - use monotically rising time
*
* time_curr_us:
- * * can overflow, in time of this writing, after 1s)
+ * * can overflow, in time of this writing, after 1s
* * unit is microseconds
*/
void usbh_poll(uint32_t time_curr_us);
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