summaryrefslogtreecommitdiff
path: root/include/driver
diff options
context:
space:
mode:
Diffstat (limited to 'include/driver')
-rw-r--r--include/driver/usbh_device_driver.h64
1 files changed, 64 insertions, 0 deletions
diff --git a/include/driver/usbh_device_driver.h b/include/driver/usbh_device_driver.h
index 03bbd3a..20ece5d 100644
--- a/include/driver/usbh_device_driver.h
+++ b/include/driver/usbh_device_driver.h
@@ -110,6 +110,10 @@ struct _usbh_control {
};
typedef struct _usbh_control usbh_control_t;
+
+//forward declare usbh_dev_driver_t
+typedef struct _usbh_dev_driver usbh_dev_driver_t;
+
/**
* @brief The _usbh_device struct
*
@@ -243,6 +247,66 @@ struct _usbh_generic_data {
typedef struct _usbh_generic_data usbh_generic_data_t;
+/// set to -1 for unused items ("don't care" functionality) @see find_driver()
+struct _usbh_dev_driver_info {
+ int32_t deviceClass;
+ int32_t deviceSubClass;
+ int32_t deviceProtocol;
+ int32_t idVendor;
+ int32_t idProduct;
+ int32_t ifaceClass;
+ int32_t ifaceSubClass;
+ int32_t ifaceProtocol;
+};
+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)(usbh_device_t *usbh_dev);
+
+ /**
+ * @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
+ * @param[in/out] drvdata is the device driver's private data
+ * @param[in] time_curr_us current timestamp in microseconds
+ * @see usbh_poll()
+ */
+ 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;
+
#define ERROR(arg) LOG_PRINTF("UNHANDLED_ERROR %d: file: %s, line: %d",\
arg, __FILE__, __LINE__)