/*
* @brief Master include file for the library USB functionality
*
* @note
* Copyright(C) NXP Semiconductors, 2012
* Copyright(C) Dean Camera, 2011, 2012
* All rights reserved.
*
* @par
* Software that is described herein is for illustrative purposes only
* which provides customers with programming information regarding the
* LPC products. This software is supplied "AS IS" without any warranties of
* any kind, and NXP Semiconductors and its licensor disclaim any and
* all warranties, express or implied, including all implied warranties of
* merchantability, fitness for a particular purpose and non-infringement of
* intellectual property rights. NXP Semiconductors assumes no responsibility
* or liability for the use of the software, conveys no license or rights under any
* patent, copyright, mask work right, or any other intellectual property rights in
* or to any products. NXP Semiconductors reserves the right to make changes
* in the software without notification. NXP Semiconductors also makes no
* representation or warranty that such application will be suitable for the
* specified use without further testing or modification.
*
* @par
* Permission to use, copy, modify, and distribute this software and its
* documentation is hereby granted, under NXP Semiconductors' and its
* licensor's relevant copyrights in the software, without fee, provided that it
* is used in conjunction with NXP Semiconductors microcontrollers. This
* copyright, permission, and disclaimer notice must appear in all copies of
* this code.
*/
/** @defgroup Group_USB USB Core - software/LPCUSBLib/Drivers/USB/USB.h
* @ingroup LPCUSBlib
*
* @section Sec_Dependencies Module Source Dependencies
* The following files must be built with any user project that uses this module:
* - LPCUSBlib/Drivers/USB/Core/ConfigDescriptor.c
* - LPCUSBlib/Drivers/USB/Core/DeviceStandardReq.c
* - LPCUSBlib/Drivers/USB/Core/Events.c
* - LPCUSBlib/Drivers/USB/Core/HostStandardReq.c
* - LPCUSBlib/Drivers/USB/Core/USBTask.c
* - LPCUSBlib/Drivers/USB/Core/Device.c
* - LPCUSBlib/Drivers/USB/Core/Endpoint.c
* - LPCUSBlib/Drivers/USB/Core/EndpointStream.c
* - LPCUSBlib/Drivers/USB/Core/Host.c
* - LPCUSBlib/Drivers/USB/Core/Pipe.c
* - LPCUSBlib/Drivers/USB/Core/PipeStream.c
* - LPCUSBlib/Drivers/USB/Core/USBController.c
* - LPCUSBlib/Drivers/USB/Class/Common/HIDParser.c
*
* @section Sec_ModDescription Module Description
* Driver and framework for the USB controller of the selected architecture and microcontroller model. This module
* consists of many submodules, and is designed to provide an easy way to configure and control USB host, device
* or OTG mode USB applications.
*
* The USB stack requires the sole control over the USB controller in the microcontroller only; i.e. it does not
* require any additional timers or other peripherals to operate. This ensures that the USB stack requires as few
* resources as possible.
*
* The USB stack can be used in Device Mode for connections to USB Hosts (see @ref Group_Device), in Host mode for
* hosting of other USB devices (see @ref Group_Host), or as a dual role device which can either act as a USB host
* or device depending on what peripheral is connected (see @ref Group_OTG). Both modes also require a common set
* of USB management functions found @ref Group_USBManagement.
*/
/** @defgroup Group_USBClassDrivers USB Class Drivers
* @ingroup LPCUSBlib
*
* Drivers for both host and device mode of the standard USB classes, for rapid application development.
* Class drivers give a framework which sits on top of the low level library API, allowing for standard
* USB classes to be implemented in a project with minimal user code. These drivers can be used in
* conjunction with the library low level APIs to implement interfaces both via the class drivers and via
* the standard library APIs.
*
* Multiple device mode class drivers can be used within a project, including multiple instances of the
* same class driver. In this way, USB Hosts and Devices can be made quickly using the internal class drivers
* so that more time and effort can be put into the end application instead of the USB protocol.
*
* The available class drivers and their modes are listed below.
*
*
*
* | USB Class |
* Device Mode |
* Host Mode |
*
*
* | Audio |
* Yes |
* Yes |
*
*
* | CDC |
* Yes |
* Yes |
*
*
* | HID |
* Yes |
* Yes |
*
*
* | MIDI |
* Yes |
* Yes |
*
*
* | Mass Storage |
* Yes |
* Yes |
*
*
* | Printer |
* No |
* Yes |
*
*
* | RNDIS |
* Yes |
* Yes |
*
*
* | Still Image |
* No |
* Yes |
*
*
*
*
* @section Sec_UsingClassDrivers Using the Class Drivers
* To make the Class drivers easy to integrate into a user application, they all implement a standardized
* design with similarly named/used function, enums, defines and types. The two different modes are implemented
* slightly differently, and thus will be explained separately. For information on a specific class driver, read
* the class driver's module documentation.
*
* @subsection Sec_ClassDriverDevice Device Mode Class Drivers
* Implementing a Device Mode Class Driver in a user application requires a number of steps to be followed. Firstly,
* the module configuration and state structure must be added to the project source. These structures are named in a
* similar manner between classes, that of USB_ClassInfo_{Class Name}_Device_t, and are used to hold the
* complete state and configuration for each class instance. Multiple class instances is where the power of the class
* drivers lie; multiple interfaces of the same class simply require more instances of the Class Driver's \c USB_ClassInfo_*
* structure.
*
* Inside the ClassInfo structure lies two sections, a \c Config section, and a \c State section. The \c Config
* section contains the instance's configuration parameters, and must have all fields set by the user application
* before the class driver is used. Each Device mode Class driver typically contains a set of configuration parameters
* for the endpoint size/number of the associated logical USB interface, plus any class-specific configuration parameters.
*
* The \c State section of the \c USB_ClassInfo_* structures are designed to be controlled by the Class Drivers only for
* maintaining the Class Driver instance's state, and should not normally be set by the user application.
*
* The following is an example of a properly initialized instance of the Audio Class Driver structure:
*
* \code
* USB_ClassInfo_Audio_Device_t My_Audio_Interface =
* {
* .Config =
* {
* .StreamingInterfaceNumber = 1,
*
* .DataINEndpointNumber = 1,
* .DataINEndpointSize = 256,
* },
* };
* \endcode
*
* @note The class driver's configuration parameters should match those used in the device's descriptors that are
* sent to the host.
*
* To initialize the Class driver instance, the driver's {Class Name}_Device_ConfigureEndpoints() function
* should be called in response to the @ref EVENT_USB_Device_ConfigurationChanged() event. This function will return a
* boolean true value if the driver successfully initialized the instance. Like all the class driver functions, this function
* takes in the address of the specific instance you wish to initialize - in this manner, multiple separate instances of
* the same class type can be initialized like this:
*
* \code
* void EVENT_USB_Device_ConfigurationChanged(void)
* {
* LEDs_SetAllLEDs(LEDMASK_USB_READY);
*
* if (!(Audio_Device_ConfigureEndpoints(&My_Audio_Interface)))
* LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
* }
* \endcode
*
* Once initialized, it is important to maintain the class driver's state by repeatedly calling the Class Driver's
* {Class Name}_Device_USBTask() function in the main program loop. The exact implementation of this
* function varies between class drivers, and can be used for any internal class driver purpose to maintain each
* instance. Again, this function uses the address of the instance to operate on, and thus needs to be called for each
* separate instance, just like the main USB maintenance routine @ref USB_USBTask():
*
* \code
* int main(void)
* {
* SetupHardware();
*
* LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
*
* for (;;)
* {
* Create_And_Process_Samples();
*
* Audio_Device_USBTask(&My_Audio_Interface);
* USB_USBTask();
* }
* }
* \endcode
*
* The final standardized Device Class Driver function is the Control Request handler function
* {Class Name}_Device_ProcessControlRequest(), which should be called when the
* @ref EVENT_USB_Device_ControlRequest() event fires. This function should also be called for
* each class driver instance, using the address of the instance to operate on as the function's
* parameter. The request handler will abort if it is determined that the current request is not
* targeted at the given class driver instance, thus these methods can safely be called
* one-after-another in the event handler with no form of error checking:
*
* \code
* void EVENT_USB_Device_ControlRequest(void)
* {
* Audio_Device_ProcessControlRequest(&My_Audio_Interface);
* }
* \endcode
*
* Each class driver may also define a set of callback functions (which are prefixed by \c CALLBACK_*
* in the function's name) which must also be added to the user application - refer to each
* individual class driver's documentation for mandatory callbacks. In addition, each class driver may
* also define a set of events (identifiable by their prefix of \c EVENT_* in the function's name), which
* the user application may choose to implement, or ignore if not needed.
*
* The individual Device Mode Class Driver documentation contains more information on the non-standardized,
* class-specific functions which the user application can then use on the driver instances, such as data
* read and write routines. See each driver's individual documentation for more information on the
* class-specific functions.
*
* @subsection Sec_ClassDriverHost Host Mode Class Drivers
* Implementing a Host Mode Class Driver in a user application requires a number of steps to be followed. Firstly,
* the module configuration and state structure must be added to the project source. These structures are named in a
* similar manner between classes, that of USB_ClassInfo_{Class Name}_Host_t, and are used to hold the
* complete state and configuration for each class instance. Multiple class instances is where the power of the class
* drivers lie; multiple interfaces of the same class simply require more instances of the Class Driver's \c USB_ClassInfo_*
* structure.
*
* Inside the \c USB_ClassInfo_* structure lies two sections, a \c Config section, and a \c State section. The \c Config
* section contains the instance's configuration parameters, and must have all fields set by the user application
* before the class driver is used. Each Device mode Class driver typically contains a set of configuration parameters
* for the endpoint size/number of the associated logical USB interface, plus any class-specific configuration parameters.
*
* The \c State section of the \c USB_ClassInfo_* structures are designed to be controlled by the Class Drivers only for
* maintaining the Class Driver instance's state, and should not normally be set by the user application.
*
* The following is an example of a properly initialized instance of the MIDI Class Driver structure:
*
* \code
* USB_ClassInfo_MIDI_Host_t My_MIDI_Interface =
* {
* .Config =
* {
* .DataINPipeNumber = 1,
* .DataINPipeDoubleBank = false,
*
* .DataOUTPipeNumber = 2,
* .DataOUTPipeDoubleBank = false,
* },
* };
* \endcode
*
* To initialize the Class driver instance, the driver's {Class Name}_Host_ConfigurePipes() function
* should be called in response to the host state machine entering the @ref HOST_STATE_Addressed state. This function
* will return an error code from the class driver's {Class Name}_EnumerationFailure_ErrorCodes_t enum
* to indicate if the driver successfully initialized the instance and bound it to an interface in the attached device.
* Like all the class driver functions, this function takes in the address of the specific instance you wish to initialize -
* in this manner, multiple separate instances of the same class type can be initialized. A fragment of a Class Driver
* based Host mode application may look like the following:
*
* \code
* switch (USB_HostState)
* {
* case HOST_STATE_Addressed:
* LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
*
* uint16_t ConfigDescriptorSize;
* uint8_t ConfigDescriptorData[512];
*
* if (USB_Host_GetDeviceConfigDescriptor(1, &ConfigDescriptorSize, ConfigDescriptorData,
* sizeof(ConfigDescriptorData)) != HOST_GETCONFIG_Successful)
* {
* LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
* USB_HostState = HOST_STATE_WaitForDeviceRemoval;
* break;
* }
*
* if (MIDI_Host_ConfigurePipes(&My_MIDI_Interface,
* ConfigDescriptorSize, ConfigDescriptorData) != MIDI_ENUMERROR_NoError)
* {
* LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
* USB_HostState = HOST_STATE_WaitForDeviceRemoval;
* break;
* }
*
* // Other state handler code here
* \endcode
*
* Note that the function also required the device's configuration descriptor so that it can determine which interface
* in the device to bind to - this can be retrieved as shown in the above fragment using the
* @ref USB_Host_GetDeviceConfigDescriptor() function. If the device does not implement the interface the class driver
* is looking for, if all the matching interfaces are already bound to class driver instances or if an error occurs while
* binding to a device interface (for example, a device endpoint bank larger that the maximum supported bank size is used)
* the configuration will fail.
*
* Once initialized, it is important to maintain the class driver's state by repeatedly calling the Class Driver's
* {Class Name}_Host_USBTask() function in the main program loop. The exact implementation of this
* function varies between class drivers, and can be used for any internal class driver purpose to maintain each
* instance. Again, this function uses the address of the instance to operate on, and thus needs to be called for each
* separate instance, just like the main USB maintenance routine @ref USB_USBTask():
*
* \code
* int main(void)
* {
* SetupHardware();
*
* LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
*
* for (;;)
* {
* switch (USB_HostState)
* {
* // Host state machine handling here
* }
*
* MIDI_Host_USBTask(&My_Audio_Interface);
* USB_USBTask();
* }
* }
* \endcode
*
* Each class driver may also define a set of callback functions (which are prefixed by \c CALLBACK_*
* in the function's name) which must also be added to the user application - refer to each
* individual class driver's documentation for mandatory callbacks. In addition, each class driver may
* also define a set of events (identifiable by their prefix of \c EVENT_* in the function's name), which
* the user application may choose to implement, or ignore if not needed.
*
* The individual Host Mode Class Driver documentation contains more information on the non-standardized,
* class-specific functions which the user application can then use on the driver instances, such as data
* read and write routines. See each driver's individual documentation for more information on the
* class-specific functions.
*/
#ifndef __USB_H__
#define __USB_H__
/* Macros: */
#define __INCLUDE_FROM_USB_DRIVER
/* Includes: */
#include "../../Common/Common.h"
#include "Core/USBMode.h"
/* Includes: */
#include "Core/USBTask.h"
#include "Core/Events.h"
#include "Core/StdDescriptors.h"
#include "Core/ConfigDescriptor.h"
#include "Core/USBController.h"
#include "Core/USBInterrupt.h"
#if defined(USB_CAN_BE_HOST) || defined(__DOXYGEN__)
#include "Core/Host.h"
#include "Core/Pipe.h"
#include "Core/HostStandardReq.h"
#include "Core/PipeStream.h"
#endif
#if defined(USB_CAN_BE_DEVICE) || defined(__DOXYGEN__)
#include "Core/Device.h"
#include "Core/Endpoint.h"
#include "Core/DeviceStandardReq.h"
#include "Core/EndpointStream.h"
#endif
#if defined(USB_CAN_BE_BOTH) || defined(__DOXYGEN__)
#include "Core/OTG.h"
#endif
#include "Class/AudioClass.h"
#include "Class/CDCClass.h"
#include "Class/HIDClass.h"
#include "Class/MassStorageClass.h"
#include "Class/MIDIClass.h"
#include "Class/PrinterClass.h"
#include "Class/RNDISClass.h"
#include "Class/StillImageClass.h"
#endif