9 files changed, 791 insertions, 0 deletions
diff --git a/fw/include/cobs.h b/fw/include/cobs.h
new file mode 100644
index 0000000..24e16fb
--- /dev/null
+++ b/fw/include/cobs.h
@@ -0,0 +1,27 @@
+#ifndef __COBS_H__
+#define __COBS_H__
+
+#include <stdint.h>
+#include <unistd.h>
+#include <string.h>
+
+
+struct cobs_decode_state {
+    size_t p;
+    size_t c;
+};
+
+
+ssize_t cobs_encode(char *dst, size_t dstlen, char *src, size_t srclen);
+ssize_t cobs_decode(char *dst, size_t dstlen, char *src, size_t srclen);
+
+int cobs_encode_incremental(void *f, int (*output)(void *f, unsigned char c), unsigned char *src, size_t srclen);
+
+/*@ requires \valid(state);
+    ensures state->p == 0 && state->c == 0;
+    assigns *state;
+  @*/
+void cobs_decode_incremental_initialize(struct cobs_decode_state *state);
+int cobs_decode_incremental(struct cobs_decode_state *state, unsigned char *dst, size_t dstlen, unsigned char src);
+
+#endif//__COBS_H__
diff --git a/fw/include/driver/usbh_device_driver.h b/fw/include/driver/usbh_device_driver.h
new file mode 100644
index 0000000..e846fd2
--- /dev/null
+++ b/fw/include/driver/usbh_device_driver.h
@@ -0,0 +1,326 @@
+/*
+ * This file is part of the libusbhost library
+ * hosted at http://github.com/libusbhost/libusbhost
+ *
+ * Copyright (C) 2015 Amir Hammad <amir.hammad@hotmail.com>
+ *
+ *
+ * libusbhost is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef USBH_DEVICE_DRIVER_
+#define USBH_DEVICE_DRIVER_
+
+#include "usbh_config.h"
+#include "usbh_core.h"
+
+#include <libopencm3/usb/usbstd.h>
+#include <stdint.h>
+
+BEGIN_DECLS
+
+enum USBH_ENDPOINT_TYPE {
+	USBH_ENDPOINT_TYPE_CONTROL = 0,
+	USBH_ENDPOINT_TYPE_ISOCHRONOUS = 1,
+	USBH_ENDPOINT_TYPE_BULK = 2,
+	USBH_ENDPOINT_TYPE_INTERRUPT = 3,
+};
+
+enum USBH_SPEED {
+	USBH_SPEED_FULL = 0,
+	USBH_SPEED_LOW = 1,
+	USBH_SPEED_HIGH = 2,
+};
+
+enum USBH_PACKET_CALLBACK_STATUS {
+	USBH_PACKET_CALLBACK_STATUS_OK = 0,
+	USBH_PACKET_CALLBACK_STATUS_ERRSIZ = 1,
+	USBH_PACKET_CALLBACK_STATUS_EAGAIN = 2, // -- TODO: automatic handling of transmit errors 3xTXERR->FATAL
+	USBH_PACKET_CALLBACK_STATUS_EFATAL = 3
+};
+
+enum USBH_POLL_STATUS {
+	USBH_POLL_STATUS_NONE,
+	USBH_POLL_STATUS_DEVICE_CONNECTED,
+	USBH_POLL_STATUS_DEVICE_DISCONNECTED
+};
+
+enum USBH_CONTROL_TYPE {
+	USBH_CONTROL_TYPE_SETUP,
+	USBH_CONTROL_TYPE_DATA
+};
+
+enum USBH_ENUM_STATE {
+	USBH_ENUM_STATE_SET_ADDRESS,
+	USBH_ENUM_STATE_FIRST = USBH_ENUM_STATE_SET_ADDRESS,
+	USBH_ENUM_STATE_DEVICE_DT_READ_SETUP,
+	USBH_ENUM_STATE_DEVICE_DT_READ_COMPLETE,
+	USBH_ENUM_STATE_CONFIGURATION_DT_HEADER_READ_SETUP,
+	USBH_ENUM_STATE_CONFIGURATION_DT_HEADER_READ,
+	USBH_ENUM_STATE_CONFIGURATION_DT_HEADER_READ_COMPLETE,
+	USBH_ENUM_STATE_CONFIGURATION_DT_READ_SETUP,
+	USBH_ENUM_STATE_CONFIGURATION_DT_READ,
+	USBH_ENUM_STATE_CONFIGURATION_DT_READ_COMPLETE,
+	USBH_ENUM_STATE_SET_CONFIGURATION_SETUP,
+	USBH_ENUM_STATE_SET_CONFIGURATION_COMPLETE,
+	USBH_ENUM_STATE_FIND_DRIVER,
+};
+
+enum USBH_CONTROL_STATE {
+	USBH_CONTROL_STATE_NONE,
+	USBH_CONTROL_STATE_SETUP,
+	USBH_CONTROL_STATE_DATA,
+	USBH_CONTROL_STATE_STATUS,
+};
+
+typedef struct _usbh_device usbh_device_t;
+
+struct _usbh_packet_callback_data {
+	/// status - it is used for reporting of the errors
+	enum USBH_PACKET_CALLBACK_STATUS status;
+
+	/// count of bytes that has been actually transferred
+	uint32_t transferred_length;
+};
+typedef struct _usbh_packet_callback_data usbh_packet_callback_data_t;
+
+typedef void (*usbh_packet_callback_t)(usbh_device_t *dev, usbh_packet_callback_data_t status);
+
+struct _usbh_control {
+	enum USBH_CONTROL_STATE state;
+	usbh_packet_callback_t callback;
+	union {
+		const void *out;
+		void *in;
+	} data;
+	uint16_t data_length;
+	struct usb_setup_data setup_data;
+};
+typedef struct _usbh_control usbh_control_t;
+
+/**
+ * @brief The _usbh_device struct
+ *
+ * This represents exactly one connected device.
+ */
+struct _usbh_device {
+	/// max packet size for control endpoint(0)
+	uint16_t packet_size_max0;
+
+	/// Device's address
+	int8_t address;
+
+	/// @see USBH_SPEED
+	enum USBH_SPEED speed;
+
+	/// state used for enumeration purposes
+	enum USBH_ENUM_STATE state;
+	usbh_control_t control;
+
+	/// toggle bit
+	uint8_t toggle0;
+
+	/**
+	 * @brief drv - device driver used for this connected device
+	 */
+
+	const usbh_dev_driver_t *drv;
+	/**
+	 * @brief drvdata - device driver's private data
+	 */
+	void *drvdata;
+
+	/**
+	 * @brief lld - pointer to a low-level driver's instance
+	 */
+	const void *lld;
+};
+typedef struct _usbh_device usbh_device_t;
+
+struct _usbh_packet {
+	/// pointer to data
+	union {
+		const void *out;
+		void *in;
+	} data;
+
+	/// length of the data (up to 1023)
+	uint16_t datalen;
+
+	/// Device's address
+	int8_t address;
+
+	/**
+	 * @brief Endpoint type
+	 * @see USBH_ENDPOINT_TYPE
+	 */
+	enum USBH_ENDPOINT_TYPE endpoint_type;
+
+	enum USBH_CONTROL_TYPE control_type;
+
+	/// Endpoint number 0..15
+	uint8_t endpoint_address;
+
+	/// Max packet size for an endpoint
+	uint16_t endpoint_size_max;
+
+	/// @see USBH_SPEED
+	enum USBH_SPEED speed;
+	uint8_t *toggle;
+
+	/**
+	 * @brief callback this will be called when the packet is finished - either successfuly or not.
+	 */
+	usbh_packet_callback_t callback;
+
+	/**
+	 * @brief callback_arg argument passed into callback
+	 *
+	 * Low level driver is not allowed to alter the data pointed by callback_arg
+	 */
+	void *callback_arg;
+};
+typedef struct _usbh_packet usbh_packet_t;
+
+struct _usbh_low_level_driver {
+	/**
+	 * @brief init initialization routine of the low-level driver
+	 *
+	 *
+	 * This function is called during the initialization of the library
+	 *
+	 * @see usbh_init()
+	 */
+	void (*init)(void *drvdata);
+
+	/**
+	 * write - perform a write to a device
+	 * @see usbh_packet_t
+	 */
+	void (*write)(void *drvdata, const usbh_packet_t *packet);
+
+	/**
+	 * @brief read - perform a read from a device
+	 * @see usbh_packet_t
+	 */
+	void (*read)(void *drvdata, usbh_packet_t *packet);
+
+	/**
+	 * @brief this is called as a part of @ref usbh_poll() routine
+	 */
+	enum USBH_POLL_STATUS (*poll)(void *drvdata, uint32_t time_curr_us);
+
+	/**
+	 * @brief speed of the low-level bus
+	 */
+	enum USBH_SPEED (*root_speed)(void *drvdata);
+
+	/**
+	 * @brief Pointer to Low-level driver data
+	 *
+	 * Data pointed by this pointer should not be altered by the logic other from low-level driver's logic
+	 */
+	void *driver_data;
+};
+typedef struct _usbh_low_level_driver usbh_low_level_driver_t;
+
+struct _usbh_generic_data {
+	usbh_device_t usbh_device[USBH_MAX_DEVICES];
+	uint8_t usbh_buffer[BUFFER_ONE_BYTES];
+};
+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__)
+
+
+/* Hub related functions */
+
+usbh_device_t *usbh_get_free_device(const usbh_device_t *dev);
+bool usbh_enum_available(void);
+void device_enumeration_start(usbh_device_t *dev);
+
+/* All devices functions */
+void usbh_read(usbh_device_t *dev, usbh_packet_t *packet);
+void usbh_write(usbh_device_t *dev, const usbh_packet_t *packet);
+
+/* Helper functions used by device drivers */
+void device_control(usbh_device_t *dev, usbh_packet_callback_t callback, const struct usb_setup_data *setup_data, void *data);
+void device_remove(usbh_device_t *dev);
+
+END_DECLS
+
+#endif
diff --git a/fw/include/usbh_config.h b/fw/include/usbh_config.h
new file mode 100644
index 0000000..8146ffb
--- /dev/null
+++ b/fw/include/usbh_config.h
@@ -0,0 +1,62 @@
+/*
+ * This file is part of the libusbhost library
+ * hosted at http://github.com/libusbhost/libusbhost
+ *
+ * Copyright (C) 2015 Amir Hammad <amir.hammad@hotmail.com>
+ *
+ *
+ * libusbhost is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef USBH_CONFIG_
+#define USBH_CONFIG_
+
+
+
+// Max devices per hub
+#define USBH_HUB_MAX_DEVICES	(8)
+
+// Max number of hub instancies
+#define USBH_MAX_HUBS		(2)
+
+// Max devices
+#define USBH_MAX_DEVICES		(15)
+
+// Min: 128
+// Set this wisely
+#define BUFFER_ONE_BYTES	(2048)
+
+// HID class devices
+#define USBH_HID_MAX_DEVICES	(2)
+#define USBH_HID_BUFFER		(256)
+#define USBH_HID_REPORT_BUFFER (4)
+
+// MIDI
+// Maximal number of midi devices connected to whatever hub
+#define USBH_AC_MIDI_MAX_DEVICES	(4)
+
+#define USBH_AC_MIDI_BUFFER 	(64)
+
+// Gamepad XBOX
+#define USBH_GP_XBOX_MAX_DEVICES	(2)
+
+#define USBH_GP_XBOX_BUFFER		(32)
+
+/* Sanity checks */
+#if (USBH_MAX_DEVICES > 127)
+#error USBH_MAX_DEVICES > 127
+#endif
+
+#endif
diff --git a/fw/include/usbh_core.h b/fw/include/usbh_core.h
new file mode 100644
index 0000000..04dbd29
--- /dev/null
+++ b/fw/include/usbh_core.h
@@ -0,0 +1,65 @@
+/*
+ * This file is part of the libusbhost library
+ * hosted at http://github.com/libusbhost/libusbhost
+ *
+ * Copyright (C) 2015 Amir Hammad <amir.hammad@hotmail.com>
+ *
+ *
+ * libusbhost is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef USBH_CORE_
+#define USBH_CORE_
+
+#include "usbh_config.h"
+
+#include <stdint.h>
+#include <stdbool.h>
+
+/* This must be placed around external function declaration for C++
+ * support. */
+#ifdef __cplusplus
+# define BEGIN_DECLS extern "C" {
+# define END_DECLS }
+#else
+# define BEGIN_DECLS
+# define END_DECLS
+#endif
+
+BEGIN_DECLS
+
+typedef struct _usbh_dev_driver usbh_dev_driver_t;
+typedef struct _usbh_low_level_driver usbh_low_level_driver_t;
+
+/**
+ * @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 usbh_low_level_driver_t * const low_level_drivers[], const usbh_dev_driver_t * const device_drivers[]);
+
+/**
+ * @brief usbh_poll
+ * @param time_curr_us - use monotically rising time
+ *
+ *	time_curr_us:
+ *		* can overflow, in time of this writing, after 1s
+ *		* unit is microseconds
+ */
+void usbh_poll(uint32_t time_curr_us);
+
+END_DECLS
+
+#endif // USBH_CORE_
diff --git a/fw/include/usbh_driver_ac_midi.h b/fw/include/usbh_driver_ac_midi.h
new file mode 100644
index 0000000..9bab100
--- /dev/null
+++ b/fw/include/usbh_driver_ac_midi.h
@@ -0,0 +1,65 @@
+/*
+ * This file is part of the libusbhost library
+ * hosted at http://github.com/libusbhost/libusbhost
+ *
+ * Copyright (C) 2016 Amir Hammad <amir.hammad@hotmail.com>
+ *
+ *
+ * libusbhost is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef USBH_DRIVER_AC_MIDI_
+#define USBH_DRIVER_AC_MIDI_
+
+#include "usbh_core.h"
+
+#include <stdint.h>
+
+BEGIN_DECLS
+
+struct _midi_config {
+	void (*read_callback)(int device_id, uint8_t *data);
+	void (*notify_connected)(int device_id);
+	void (*notify_disconnected)(int device_id);
+};
+typedef struct _midi_config midi_config_t;
+
+/**
+ * @param bytes_written count of bytes that were actually written
+ */
+typedef void (*midi_write_callback_t)(uint8_t bytes_written);
+
+/**
+ * @brief midi_driver_init initialization routine - this will initialize internal structures of this device driver
+ * @param config
+ *
+ * @see midi_config_t
+ */
+void midi_driver_init(const midi_config_t *config);
+
+/**
+ * @brief usbh_midi_write
+ * @param device_id
+ * @param data
+ * @param length
+ * @param callback this is called when the write call finishes
+ */
+void usbh_midi_write(uint8_t device_id, const void *data, uint32_t length, midi_write_callback_t callback);
+
+extern const usbh_dev_driver_t usbh_midi_driver;
+
+END_DECLS
+
+#endif
diff --git a/fw/include/usbh_driver_gp_xbox.h b/fw/include/usbh_driver_gp_xbox.h
new file mode 100644
index 0000000..d648b90
--- /dev/null
+++ b/fw/include/usbh_driver_gp_xbox.h
@@ -0,0 +1,78 @@
+/*
+ * This file is part of the libusbhost library
+ * hosted at http://github.com/libusbhost/libusbhost
+ *
+ * Copyright (C) 2015 Amir Hammad <amir.hammad@hotmail.com>
+ *
+ *
+ * libusbhost is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef USBH_DRIVER_GP_XBOX_
+#define USBH_DRIVER_GP_XBOX_
+
+#include "usbh_core.h"
+
+#include <stdint.h>
+
+BEGIN_DECLS
+
+#define GP_XBOX_DPAD_TOP (1 << 0)
+#define GP_XBOX_DPAD_LEFT (1 << 1)
+#define GP_XBOX_DPAD_BOTTOM (1 << 2)
+#define GP_XBOX_DPAD_RIGHT (1 << 3)
+#define GP_XBOX_BUTTON_X (1 << 4)
+#define GP_XBOX_BUTTON_Y (1 << 5)
+#define GP_XBOX_BUTTON_A (1 << 6)
+#define GP_XBOX_BUTTON_B (1 << 7)
+#define GP_XBOX_BUTTON_SELECT (1 << 8)
+#define GP_XBOX_BUTTON_START (1 << 9)
+#define GP_XBOX_BUTTON_LT (1 << 10)
+#define GP_XBOX_BUTTON_RT (1 << 11)
+#define GP_XBOX_BUTTON_XBOX (1 << 12)
+#define GP_XBOX_BUTTON_AXIS_LEFT (1 << 13)
+#define GP_XBOX_BUTTON_AXIS_RIGHT (1 << 14)
+
+struct _gp_xbox_packet {
+	uint32_t buttons;
+	int16_t axis_left_x;
+	int16_t axis_left_y;
+	int16_t axis_right_x;
+	int16_t axis_right_y;
+	uint8_t axis_rear_left;
+	uint8_t axis_rear_right;
+};
+typedef struct _gp_xbox_packet gp_xbox_packet_t;
+
+
+struct _gp_xbox_config {
+	void (*update)(uint8_t device_id, gp_xbox_packet_t data);
+	void (*notify_connected)(uint8_t device_id);
+	void (*notify_disconnected)(uint8_t device_id);
+};
+typedef struct _gp_xbox_config gp_xbox_config_t;
+
+
+/**
+ * @brief gp_xbox_driver_init initialization routine - this will initialize internal structures of this device driver
+ * @see gp_xbox_config_t
+ */
+void gp_xbox_driver_init(const gp_xbox_config_t *config);
+
+extern const usbh_dev_driver_t usbh_gp_xbox_driver;
+
+END_DECLS
+
+#endif
diff --git a/fw/include/usbh_driver_hid.h b/fw/include/usbh_driver_hid.h
new file mode 100644
index 0000000..8155d82
--- /dev/null
+++ b/fw/include/usbh_driver_hid.h
@@ -0,0 +1,85 @@
+/*
+ * This file is part of the libusbhost library
+ * hosted at http://github.com/libusbhost/libusbhost
+ *
+ * Copyright (C) 2016 Amir Hammad <amir.hammad@hotmail.com>
+ *
+ *
+ * libusbhost is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef USBH_DRIVER_HID_
+#define USBH_DRIVER_HID_
+
+#include "usbh_core.h"
+
+#include <stdint.h>
+
+BEGIN_DECLS
+
+struct _hid_mouse_config {
+	/**
+	 * @brief this is called when some data is read when polling the device
+	 * @param device_id handle of HID device
+	 * @param data pointer to the data
+	 * @param length count of bytes in the data
+	 *
+	 * TODO: make better interface that provides data contained in the report descriptor
+	 *
+	 */
+	void (*hid_in_message_handler)(uint8_t device_id, const uint8_t *data, uint32_t length);
+};
+typedef struct _hid_mouse_config hid_config_t;
+
+/**
+ * @brief hid_mouse_driver_init initialization routine - this will initialize internal structures of this device driver
+ * @param config
+ * @see hid_mouse_config_t
+ */
+void hid_driver_init(const hid_config_t *config);
+
+/**
+ * @brief hid_set_report
+ * @param device_id handle of HID device
+ * @returns true on success, false otherwise
+ */
+bool hid_set_report(uint8_t device_id, uint8_t val);
+
+enum HID_TYPE {
+	HID_TYPE_NONE,
+	HID_TYPE_MOUSE,
+	HID_TYPE_KEYBOARD,
+};
+
+/**
+ * @brief hid_get_type
+ * @param device_id handle of HID device
+ * @return type of attached HID
+ * @see enum HID_TYPE
+ */
+enum HID_TYPE hid_get_type(uint8_t device_id);
+
+/**
+ * @brief hid_is_connected
+ * @param device_id handle of HID device
+ * @return true if the device with device_id is connected
+ */
+bool hid_is_connected(uint8_t device_id);
+
+extern const usbh_dev_driver_t usbh_hid_driver;
+
+END_DECLS
+
+#endif
diff --git a/fw/include/usbh_driver_hub.h b/fw/include/usbh_driver_hub.h
new file mode 100644
index 0000000..1066074
--- /dev/null
+++ b/fw/include/usbh_driver_hub.h
@@ -0,0 +1,39 @@
+/*
+ * This file is part of the libusbhost library
+ * hosted at http://github.com/libusbhost/libusbhost
+ *
+ * Copyright (C) 2015 Amir Hammad <amir.hammad@hotmail.com>
+ *
+ *
+ * libusbhost is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef USBH_DRIVER_HUB_
+#define USBH_DRIVER_HUB_
+
+#include "usbh_core.h"
+
+BEGIN_DECLS
+
+/**
+ * @brief hub_driver_init initialization routine - this will initialize internal structures of this device driver
+ */
+void hub_driver_init(void);
+
+extern const usbh_dev_driver_t usbh_hub_driver;
+
+END_DECLS
+
+#endif
diff --git a/fw/include/usbh_lld_stm32f4.h b/fw/include/usbh_lld_stm32f4.h
new file mode 100644
index 0000000..33be145
--- /dev/null
+++ b/fw/include/usbh_lld_stm32f4.h
@@ -0,0 +1,44 @@
+/*
+ * This file is part of the libusbhost library
+ * hosted at http://github.com/libusbhost/libusbhost
+ *
+ * Copyright (C) 2015 Amir Hammad <amir.hammad@hotmail.com>
+ *
+ *
+ * libusbhost is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef USBH_LLD_STM32F4_H_
+#define USBH_LLD_STM32F4_H_
+
+#include "usbh_core.h"
+
+#include <stdint.h>
+
+BEGIN_DECLS
+
+// pass this to usbh init
+extern const usbh_low_level_driver_t usbh_lld_stm32f4_driver_fs;
+extern const usbh_low_level_driver_t usbh_lld_stm32f4_driver_hs;
+
+#ifdef USART_DEBUG
+void print_channels(const void *drvdata);
+#else
+#define print_channels(arg) ((void)arg)
+#endif
+
+END_DECLS
+
+#endif