Data Structures
struct	tDeviceInfo

struct	tCompositeEntry

struct	tCustomHandlers

struct	tConfigSection

struct	tConfigHeader

Macros
#define	EP_INFO_IN 0

#define	EP_INFO_OUT 1

#define	HALT_EP_IN 0

#define	HALT_EP_OUT 1

#define	EP0_MAX_PACKET_SIZE 64

#define	DEV_ADDR_PENDING 0x80000000

#define	DEFAULT_CONFIG_ID 1

#define	REMOTE_WAKEUP_PULSE_MS 10

#define	REMOTE_WAKEUP_READY_MS 20

#define	USBLIB_LPM_STATE_DISABLED 0x00000000

#define	USBLIB_LPM_STATE_AWAKE 0x00000001

#define	USBLIB_LPM_STATE_SLEEP 0x00000002

#define	USB_MAX_INTERFACES_PER_DEVICE 8

Typedefs
typedef void(*	tStdRequest) (void pvInstance, tUSBRequest pUSBRequest)

typedef void(*	tInfoCallback) (void *pvInstance, uint32_t ui32Info)

typedef void(*	tInterfaceCallback) (void *pvInstance, uint8_t ui8InterfaceNum, uint8_t ui8AlternateSetting)

typedef void(*	tUSBIntHandler) (void *pvInstance)

typedef void(*	tUSBEPIntHandler) (void *pvInstance, uint32_t ui32Status)

typedef void(*	tUSBDeviceHandler) (void pvInstance, uint32_t ui32Request, void pvRequestData)

Functions
uint32_t	USBDCDConfigDescGetSize (const tConfigHeader *psConfig)

uint32_t	USBDCDConfigDescGetNum (const tConfigHeader *psConfig, uint32_t ui32Type)

tDescriptorHeader *	USBDCDConfigDescGet (const tConfigHeader psConfig, uint32_t ui32Type, uint32_t ui32Index, uint32_t pui32Section)

uint32_t	USBDCDConfigGetNumAlternateInterfaces (const tConfigHeader *psConfig, uint8_t ui8InterfaceNumber)

tInterfaceDescriptor *	USBDCDConfigGetInterface (const tConfigHeader psConfig, uint32_t ui32Index, uint32_t ui32Alt, uint32_t pui32Section)

tEndpointDescriptor *	USBDCDConfigGetInterfaceEndpoint (const tConfigHeader *psConfig, uint32_t ui32InterfaceNumber, uint32_t ui32AltCfg, uint32_t ui32Index)

bool	USBDeviceConfig (tDCDInstance psDevInst, const tConfigHeader psConfig)

bool	USBDeviceConfigAlternate (tDCDInstance psDevInst, const tConfigHeader psConfig, uint8_t ui8InterfaceNum, uint8_t ui8AlternateSetting)

void	USBDCDDeviceInfoInit (uint32_t ui32Index, tDeviceInfo *psDeviceInfo)

void	USBDCDInit (uint32_t ui32Index, tDeviceInfo psDevice, void pvDCDCBData)

void	USBDCDTerm (uint32_t ui32Index)

void	USBDCDRequestDataEP0 (uint32_t ui32Index, uint8_t *pui8Data, uint32_t ui32Size)

void	USBDCDSendDataEP0 (uint32_t ui32Index, uint8_t *pui8Data, uint32_t ui32Size)

void	USBDCDSetDefaultConfiguration (uint32_t ui32Index, uint32_t ui32DefaultConfig)

void	USBDCDStallEP0 (uint32_t ui32Index)

void	USBDCDPowerStatusSet (uint32_t ui32Index, uint8_t ui8Power)

bool	USBDCDFeatureSet (uint32_t ui32Index, uint32_t ui32Feature, void *pvFeature)

bool	USBDCDFeatureGet (uint32_t ui32Index, uint32_t ui32Feature, void *pvFeature)

bool	USBDCDRemoteWakeLPM (uint32_t ui32Index)

bool	USBDCDRemoteWakeupRequest (uint32_t ui32Index)

void	USBDeviceResumeTickHandler (tDCDInstance *psDevInst)

void	USBDeviceEnumHandler (tDCDInstance *pDevInstance)

void	USBDeviceEnumResetHandler (tDCDInstance *pDevInstance)

void	USBDeviceIntHandlerInternal (uint32_t ui32Index, uint32_t ui32Status)

void	USB0_IRQDeviceHandler (void)

Variables
tDCDInstance	g_psDCDInst [1]

tDeviceInfo *	g_ppsDevInfo [1]

Detailed Description

Macro Definition Documentation

§ EP_INFO_IN

#define EP_INFO_IN 0

Referenced by USBDeviceConfig().

§ EP_INFO_OUT

#define EP_INFO_OUT 1

Referenced by USBDeviceConfig().

§ HALT_EP_IN

#define HALT_EP_IN 0

§ HALT_EP_OUT

#define HALT_EP_OUT 1

§ EP0_MAX_PACKET_SIZE

#define EP0_MAX_PACKET_SIZE 64

§ DEV_ADDR_PENDING

#define DEV_ADDR_PENDING 0x80000000

Referenced by USBDeviceEnumHandler().

§ DEFAULT_CONFIG_ID

#define DEFAULT_CONFIG_ID 1

Referenced by USBDCDDeviceInfoInit().

§ REMOTE_WAKEUP_PULSE_MS

#define REMOTE_WAKEUP_PULSE_MS 10

Referenced by USBDeviceResumeTickHandler().

§ REMOTE_WAKEUP_READY_MS

#define REMOTE_WAKEUP_READY_MS 20

Referenced by USBDeviceResumeTickHandler().

§ USBLIB_LPM_STATE_DISABLED

#define USBLIB_LPM_STATE_DISABLED 0x00000000

§ USBLIB_LPM_STATE_AWAKE

#define USBLIB_LPM_STATE_AWAKE 0x00000001

Referenced by USBDeviceIntHandlerInternal().

§ USBLIB_LPM_STATE_SLEEP

#define USBLIB_LPM_STATE_SLEEP 0x00000002

Referenced by USBDeviceIntHandlerInternal().

§ USB_MAX_INTERFACES_PER_DEVICE

#define USB_MAX_INTERFACES_PER_DEVICE 8

The maximum number of independent interfaces that any single device implementation can support. Independent interfaces means interface descriptors with different bInterfaceNumber values - several interface descriptors offering different alternative settings but the same interface number count as a single interface.

Referenced by USBDeviceEnumResetHandler().

Typedef Documentation

§ tStdRequest

typedef void(* tStdRequest) (void *pvInstance, tUSBRequest *pUSBRequest)

§ tInfoCallback

typedef void(* tInfoCallback) (void *pvInstance, uint32_t ui32Info)

§ tInterfaceCallback

typedef void(* tInterfaceCallback) (void *pvInstance, uint8_t ui8InterfaceNum, uint8_t ui8AlternateSetting)

§ tUSBIntHandler

typedef void(* tUSBIntHandler) (void *pvInstance)

§ tUSBEPIntHandler

typedef void(* tUSBEPIntHandler) (void *pvInstance, uint32_t ui32Status)

§ tUSBDeviceHandler

typedef void(* tUSBDeviceHandler) (void *pvInstance, uint32_t ui32Request, void *pvRequestData)

Generic handler callbacks that are used when the callers needs to call into an instance of class.

Function Documentation

§ USBDCDConfigDescGetSize()

uint32_t USBDCDConfigDescGetSize ( const tConfigHeader * psConfig )

References tConfigHeader::psSections, tConfigSection::ui16Size, and tConfigHeader::ui8NumSections.

§ USBDCDConfigDescGetNum()

uint32_t USBDCDConfigDescGetNum	(	const tConfigHeader *	psConfig,
		uint32_t	ui32Type
	)

References tConfigHeader::psSections, tConfigSection::pui8Data, tConfigSection::ui16Size, tConfigHeader::ui8NumSections, and USBDescGetNum().

Referenced by USBDeviceConfig(), and USBDeviceConfigAlternate().

§ USBDCDConfigDescGet()

tDescriptorHeader* USBDCDConfigDescGet	(	const tConfigHeader *	psConfig,
		uint32_t	ui32Type,
		uint32_t	ui32Index,
		uint32_t *	pui32Section
	)

References tConfigHeader::psSections, tConfigSection::pui8Data, tConfigSection::ui16Size, tConfigHeader::ui8NumSections, USBDescGet(), and USBDescGetNum().

Referenced by USBDCDConfigGetInterface(), and USBDeviceConfig().

§ USBDCDConfigGetNumAlternateInterfaces()

uint32_t USBDCDConfigGetNumAlternateInterfaces	(	const tConfigHeader *	psConfig,
		uint8_t	ui8InterfaceNumber
	)

References tConfigHeader::psSections, tConfigSection::pui8Data, and USB_DTYPE_INTERFACE.

§ USBDCDConfigGetInterface()

tInterfaceDescriptor* USBDCDConfigGetInterface	(	const tConfigHeader *	psConfig,
		uint32_t	ui32Index,
		uint32_t	ui32Alt,
		uint32_t *	pui32Section
	)

References USB_DESC_ANY, USB_DTYPE_INTERFACE, and USBDCDConfigDescGet().

Referenced by USBDCDConfigGetInterfaceEndpoint(), USBDeviceConfig(), and USBDeviceConfigAlternate().

§ USBDCDConfigGetInterfaceEndpoint()

tEndpointDescriptor* USBDCDConfigGetInterfaceEndpoint	(	const tConfigHeader *	psConfig,
		uint32_t	ui32InterfaceNumber,
		uint32_t	ui32AltCfg,
		uint32_t	ui32Index
	)

References USB_DTYPE_ENDPOINT, and USBDCDConfigGetInterface().

Referenced by USBDeviceConfig(), USBDeviceConfigAlternate(), and USBDHIDCompositeInit().

§ USBDeviceConfig()

bool USBDeviceConfig	(	tDCDInstance *	psDevInst,
		const tConfigHeader *	psConfig
	)

Configure the USB controller appropriately for the device whose configuration descriptor is passed.

Parameters

psDevInst	is a pointer to the device instance being configured.
psConfig	is a pointer to the configuration descriptor that the USB controller is to be set up to support.

This function may be used to initialize a USB controller to operate as the device whose configuration descriptor is passed. The function enables the USB controller, partitions the FIFO appropriately and configures each endpoint required by the configuration. If the supplied configuration supports multiple alternate settings for any interface, the USB FIFO is set up assuming the worst case use (largest packet size for a given endpoint in any alternate setting using that endpoint) to allow for on-the-fly alternate setting changes later. On return from this function, the USB controller is configured for correct operation of the default configuration of the device described by the descriptor passed.

Returns: Returns true on success or false on failure.

References EP_INFO_IN, EP_INFO_OUT, USB_DESC_ANY, USB_DTYPE_ENDPOINT, USB_DTYPE_INTERFACE, USB_EP_DESC_IN, USB_EP_DESC_NUM_M, USBDCDConfigDescGet(), USBDCDConfigDescGetNum(), USBDCDConfigGetInterface(), and USBDCDConfigGetInterfaceEndpoint().

§ USBDeviceConfigAlternate()

bool USBDeviceConfigAlternate	(	tDCDInstance *	psDevInst,
		const tConfigHeader *	psConfig,
		uint8_t	ui8InterfaceNum,
		uint8_t	ui8AlternateSetting
	)

Configure the affected USB endpoints appropriately for one alternate interface setting.

Parameters

psDevInst	is a pointer to the device instance being configured.
psConfig	is a pointer to the configuration descriptor that contains the interface whose alternate settings is to be configured.
ui8InterfaceNum	is the number of the interface whose alternate setting is to be configured. This number corresponds to the bInterfaceNumber field in the desired interface descriptor.
ui8AlternateSetting	is the alternate setting number for the desired interface. This number corresponds to the bAlternateSetting field in the desired interface descriptor.

This function may be used to reconfigure the endpoints of an interface for operation in one of the interface's alternate settings. Note that this function assumes that the endpoint FIFO settings will not need to change and only the endpoint mode is changed. This assumption is valid if the USB controller was initialized using a previous call to USBDCDConfig().

In reconfiguring the interface endpoints, any additional configuration bits set in the endpoint configuration other than the direction (USB_EP_DEV_IN or USB_EP_DEV_OUT) and mode (USB_EP_MODE_MASK) are preserved.

Returns: Returns true on success or false on failure.

References USB_DESC_ANY, USB_DTYPE_INTERFACE, USBDCDConfigDescGetNum(), USBDCDConfigGetInterface(), and USBDCDConfigGetInterfaceEndpoint().

§ USBDCDDeviceInfoInit()

void USBDCDDeviceInfoInit	(	uint32_t	ui32Index,
		tDeviceInfo *	psDeviceInfo
	)

Initialize an instance of the tDeviceInfo structure.

Parameters

ui32Index	is the index of the USB controller which is to be initialized.
psDeviceInfo	is a pointer to the tDeviceInfo structure that needs to be initialized.

This function must be called by a USB device class instance to initialize the basic tDeviceInfo required for all USB device class modules. This is typically called in the initialization routine for USB device class. For example in usbdaudio.c that supports USB device audio classes, this function is called in the USBDAudioCompositeInit() function which is used for both composite and non-composites instances of the USB audio class.

Note: This function should not be called directly by applications.

Returns: None.

References tDCDInstance::bPwrSrcSet, tDCDInstance::bRemoteWakeup, DEFAULT_CONFIG_ID, eUSBStateIdle, tDCDInstance::iEP0State, tDCDInstance::ui32Configuration, tDCDInstance::ui32DefaultConfiguration, tDCDInstance::ui32IntNum, tDCDInstance::ui32LPMState, and tDCDInstance::ui8Status.

Referenced by USBDCDInit(), and USBDHIDCompositeInit().

§ USBDCDInit()

void USBDCDInit	(	uint32_t	ui32Index,
		tDeviceInfo *	psDevice,
		void *	pvDCDCBData
	)

Initialize the USB library device control driver for a given hardware controller.

Parameters

ui32Index	is the index of the USB controller which is to be initialized.
psDevice	is a pointer to a structure containing information that the USB library requires to support operation of this application's device. The structure contains event handler callbacks and pointers to the various standard descriptors that the device wishes to publish to the host.
pvDCDCBData	is the callback data for any device callbacks.

This function must be called by a device class which wishes to operate as a USB device and is not typically called by an application. This function initializes the USB device control driver for the given controller and saves the device information for future use. Prior to returning from this function, the device is connected to the USB bus. Following return, the caller can expect to receive a callback to the supplied pfnResetHandler function when a host connects to the device. The pvDCDCBData contains a pointer to data that is returned with the DCD calls back to the function in the psDevice->psCallbacks() functions.

The device information structure passed in psDevice must remain unchanged between this call and any matching call to USBDCDTerm() because it is not copied by the USB library.

The USBStackModeSet() function can be called with eUSBModeForceDevice in order to cause the USB library to force the USB operating mode to a device controller. This allows the application to used the USBVBUS and USBID pins as GPIOs on devices that support forcing OTG to operate as a device only controller. By default the USB library will assume that the USBVBUS and USBID pins are configured as USB pins and not GPIOs.

Returns: None.

References eUSBModeDevice, eUSBModeForceHost, eUSBModeHost, eUSBModeNone, eUSBModeOTG, g_iUSBMode, tDCDInstance::pvCBData, and USBDCDDeviceInfoInit().

Referenced by USBDBulkInit(), USBDCDCInit(), and USBDHIDInit().

§ USBDCDTerm()

void USBDCDTerm ( uint32_t ui32Index )

Free the USB library device control driver for a given hardware controller.

Parameters

ui32Index is the index of the USB controller which is to be freed.

This function should be called by an application if it no longer requires the use of a given USB controller to support its operation as a USB device. It frees the controller for use by another client.

It is the caller's responsibility to remove its device from the USB bus prior to calling this function.

Returns: None.

References InternalUSBTickReset().

Referenced by USBDAudioTerm(), USBDBulkTerm(), USBDCDCTerm(), USBDDFUCompositeTerm(), USBDDFUUpdateBegin(), USBDHIDTerm(), and USBDMSCTerm().

§ USBDCDRequestDataEP0()

void USBDCDRequestDataEP0	(	uint32_t	ui32Index,
		uint8_t *	pui8Data,
		uint32_t	ui32Size
	)

This function starts the request for data from the host on endpoint zero.

Parameters

ui32Index	is the index of the USB controller from which the data is being requested.
pui8Data	is a pointer to the buffer to fill with data from the USB host.
ui32Size	is the size of the buffer or data to return from the USB host.

This function handles retrieving data from the host when a custom command has been issued on endpoint zero. If the application needs notification when the data has been received, psCallbacks->pfnDataReceived() in the tDeviceInfo structure must contain valid function pointer. In nearly all cases this is necessary because the caller of this function would likely need to know that the data requested was received.

Returns: None.

References eUSBStateRx, tDCDInstance::iEP0State, tDCDInstance::pui8EP0Data, tDCDInstance::ui32EP0DataRemain, and tDCDInstance::ui32OUTDataSize.

§ USBDCDSendDataEP0()

void USBDCDSendDataEP0	(	uint32_t	ui32Index,
		uint8_t *	pui8Data,
		uint32_t	ui32Size
	)

This function requests transfer of data to the host on endpoint zero.

Parameters

ui32Index	is the index of the USB controller which is to be used to send the data.
pui8Data	is a pointer to the buffer to send via endpoint zero.
ui32Size	is the amount of data to send in bytes.

This function handles sending data to the host when a custom command is issued or non-standard descriptor has been requested on endpoint zero. If the application needs notification when this is complete, psCallbacks->pfnDataSent in the tDeviceInfo structure must contain a valid function pointer. This callback could be used to free up the buffer passed into this function in the pui8Data parameter. The contents of the pui8Data buffer must remain unchanged until the pfnDataSent callback is received.

Returns: None.

References tDCDInstance::pui8EP0Data, tDCDInstance::ui32EP0DataRemain, and tDCDInstance::ui32OUTDataSize.

§ USBDCDSetDefaultConfiguration()

void USBDCDSetDefaultConfiguration	(	uint32_t	ui32Index,
		uint32_t	ui32DefaultConfig
	)

This function sets the default configuration for the device.

Parameters

ui32Index	is the index of the USB controller whose default configuration is to be set.
ui32DefaultConfig	is the configuration identifier (byte 6 of the standard configuration descriptor) which is to be presented to the host as the default configuration in cases where the configuration descriptor is queried prior to any specific configuration being set.

This function allows a device to override the default configuration descriptor that will be returned to a host whenever it is queried prior to a specific configuration having been set. The parameter passed must equal one of the configuration identifiers found in the ppsConfigDescriptors array for the device.

If this function is not called, the USB library will return the first configuration in the ppsConfigDescriptors array as the default configuration.

Note: The USB device stack assumes that the configuration IDs (byte 6 of the configuration descriptor, bConfigurationValue) stored within the configuration descriptor array, ppsConfigDescriptors, are equal to the array index + 1. In other words, the first entry in the array must contain a descriptor with bConfigurationValue 1, the second must have bConfigurationValue 2 and so on.

Returns: None.

References tDCDInstance::ui32DefaultConfiguration.

§ USBDCDStallEP0()

void USBDCDStallEP0 ( uint32_t ui32Index )

This function generates a stall condition on endpoint zero.

Parameters

ui32Index is the index of the USB controller whose endpoint zero is to be stalled.

This function is typically called to signal an error condition to the host when an unsupported request is received by the device. It should be called from within the callback itself (in interrupt context) and not deferred until later since it affects the operation of the endpoint zero state machine in the USB library.

Returns: None.

References eUSBStateStall, and tDCDInstance::iEP0State.

§ USBDCDPowerStatusSet()

void USBDCDPowerStatusSet	(	uint32_t	ui32Index,
		uint8_t	ui8Power
	)

Reports the device power status (bus- or self-powered) to the library.

Parameters

ui32Index	is the index of the USB controller whose device power status is being reported.
ui8Power	indicates the current power status, either USB_STATUS_SELF_PWR or USB_STATUS_BUS_PWR.

Applications which support switching between bus- or self-powered operation should call this function whenever the power source changes to indicate the current power status to the USB library. This information is required by the library to allow correct responses to be provided when the host requests status from the device.

Returns: None.

References tDCDInstance::bPwrSrcSet, tDCDInstance::ui8Status, USB_STATUS_BUS_PWR, USB_STATUS_PWR_M, and USB_STATUS_SELF_PWR.

Referenced by USBDBulkPowerStatusSet(), USBDCDCPowerStatusSet(), and USBDHIDPowerStatusSet().

§ USBDCDFeatureSet()

bool USBDCDFeatureSet	(	uint32_t	ui32Index,
		uint32_t	ui32Feature,
		void *	pvFeature
	)

This function is used to enable/disable features of the USB library.

Parameters

ui32Index	is the index of the USB controller whose device power status is being reported.
ui32Feature	indicates which feature is being changed.
pvFeature	holds the data that controls the feature request.

Applications can change the support levels of some USB library features by calling this function to enable/disable certain features. This function should normally be called before class initialization functions since the settings need to be in place before enumeration starts. This allows the USB library to properly respond to all enumeration requests. The ui32Feature value is one of the USBLIB_FEATURE_* defines which controls the type of request being made. The pvFeature is a feature specific data structure that is determined by the value passed in the ui32Feature parameter.

Returns: Returns true if the feature was successfully changed and returns false if the feature was not able to be changed or is not supported.

References tDCDInstance::ui32Features, tLPMFeature::ui32Features, USBLIB_FEATURE_LPM, USBLIB_FEATURE_LPM_EN, and USBLIB_FEATURE_USBPLL.

Referenced by USBOTGFeatureSet().

§ USBDCDFeatureGet()

bool USBDCDFeatureGet	(	uint32_t	ui32Index,
		uint32_t	ui32Feature,
		void *	pvFeature
	)

This function is used to get the features of the USB library.

Parameters

ui32Index	is the index of the USB controller whose device power status is being reported.
ui32Feature	indicates which feature is being requested.
pvFeature	holds the data that will be reported for the feature request.

Applications can query the support levels of some USB library features by calling this function to get values of the features. This function should normally be called before class initialization functions since the settings need to be in place during enumeration. This allows the USB library to properly respond to all enumeration requests. The ui32Feature value is one of the USBLIB_FEATURE_* defines which controls the type of request being made. The pvFeature is a feature specific data structure that is determined by the value passed in the ui32Feature parameter.

Returns: Returns true if the feature was requested for ULPI and returns false if the feature was not for ULPI interface.

References USBLIB_FEATURE_USBULPI.

Referenced by USBDBulkCompositeInit(), and USBDCDCCompositeInit().

§ USBDCDRemoteWakeLPM()

bool USBDCDRemoteWakeLPM ( uint32_t ui32Index )

Requests an LPM remote wake up to resume communication when in an LPM sleep state.

Parameters

ui32Index is the index of the USB controller that will request a bus wake up.

When the host controller puts the device into an LPM sleep state, the device can call this function to initiate LPM remote wake up signaling to the host. If the remote wake up feature has been enabled by the host, this will cause the host to respond to the LPM remote wake request and resume normal operation. If the host has disabled remote wake up, false is returned to indicate that the wake up request was not successful.

Returns: Returns true if the remote wake up request has been sent or false if LPM remote wake up is disabled.

§ USBDCDRemoteWakeupRequest()

bool USBDCDRemoteWakeupRequest ( uint32_t ui32Index )

Requests a remote wake up to resume communication when in suspended state.

Parameters

ui32Index is the index of the USB controller that will request a bus wake up.

When the bus is suspended, an application which supports remote wake up (advertised to the host via the configuration descriptor) may call this function to initiate remote wake up signaling to the host. If the remote wake up feature has not been disabled by the host, this will cause the bus to resume operation within 20mS. If the host has disabled remote wake up, false will be returned to indicate that the wake up request was not successful.

Returns: Returns true if the remote wake up is not disabled and the signaling was started or false if remote wake up is disabled or if signaling is currently ongoing following a previous call to this function.

References tDCDInstance::bRemoteWakeup, tDCDInstance::ui8RemoteWakeupCount, and USB_STATUS_REMOTE_WAKE.

Referenced by USBDBulkRemoteWakeupRequest(), USBDCDCRemoteWakeupRequest(), and USBDHIDRemoteWakeupRequest().

§ USBDeviceResumeTickHandler()

void USBDeviceResumeTickHandler ( tDCDInstance * psDevInst )

References tDCDInstance::bRemoteWakeup, tCustomHandlers::pfnResumeHandler, tDeviceInfo::psCallbacks, REMOTE_WAKEUP_PULSE_MS, REMOTE_WAKEUP_READY_MS, and tDCDInstance::ui8RemoteWakeupCount.

Referenced by USBDeviceIntHandlerInternal().

§ USBDeviceEnumHandler()

void USBDeviceEnumHandler ( tDCDInstance * pDevInstance )

References DEV_ADDR_PENDING, eUSBStateIdle, eUSBStateStatus, tDCDInstance::iEP0State, and tDCDInstance::ui32DevAddress.

Referenced by USBDeviceIntHandlerInternal().

§ USBDeviceEnumResetHandler()

void USBDeviceEnumResetHandler ( tDCDInstance * pDevInstance )

References tDCDInstance::bRemoteWakeup, tCustomHandlers::pfnResetHandler, tDeviceInfo::psCallbacks, tDCDInstance::pui8AltSetting, tDCDInstance::ui32Configuration, tDCDInstance::ui32DefaultConfiguration, tDCDInstance::ui8Status, USB_MAX_INTERFACES_PER_DEVICE, and USB_STATUS_REMOTE_WAKE.

Referenced by USBDeviceIntHandlerInternal().

§ USBDeviceIntHandlerInternal()

void USBDeviceIntHandlerInternal	(	uint32_t	ui32Index,
		uint32_t	ui32Status
	)

§ USB0_IRQDeviceHandler()

void USB0_IRQDeviceHandler ( void )

The USB device interrupt handler.

This the main USB interrupt handler entry point for use in USB device applications. This top-level handler will branch the interrupt off to the appropriate application or stack handlers depending on the current status of the USB controller.

Applications which operate purely as USB devices (rather than dual mode applications which can operate in either device or host mode at different times) must ensure that a pointer to this function is installed in the interrupt vector table entry for the USB0 interrupt. For dual mode operation, the vector should be set to point to USB0DualModeIntHandler() instead.

Returns: None.

References USBDeviceIntHandlerInternal().

Variable Documentation

§ g_psDCDInst

tDCDInstance g_psDCDInst[1]

Referenced by USBDualModeInit(), USBDualModeTerm(), and USBOTGModeTerm().

§ g_ppsDevInfo

tDeviceInfo* g_ppsDevInfo[1]

Data Structures

Macros

Typedefs

Functions

Variables

Detailed Description

Macro Definition Documentation

§ EP_INFO_IN

§ EP_INFO_OUT

§ HALT_EP_IN

§ HALT_EP_OUT

§ EP0_MAX_PACKET_SIZE

§ DEV_ADDR_PENDING

§ DEFAULT_CONFIG_ID

§ REMOTE_WAKEUP_PULSE_MS

§ REMOTE_WAKEUP_READY_MS

§ USBLIB_LPM_STATE_DISABLED

§ USBLIB_LPM_STATE_AWAKE

§ USBLIB_LPM_STATE_SLEEP

§ USB_MAX_INTERFACES_PER_DEVICE

Typedef Documentation

§ tStdRequest

§ tInfoCallback

§ tInterfaceCallback

§ tUSBIntHandler

§ tUSBEPIntHandler

§ tUSBDeviceHandler

Function Documentation

§ USBDCDConfigDescGetSize()

§ USBDCDConfigDescGetNum()

§ USBDCDConfigDescGet()

§ USBDCDConfigGetNumAlternateInterfaces()

§ USBDCDConfigGetInterface()

§ USBDCDConfigGetInterfaceEndpoint()

§ USBDeviceConfig()

§ USBDeviceConfigAlternate()

§ USBDCDDeviceInfoInit()

§ USBDCDInit()

§ USBDCDTerm()

§ USBDCDRequestDataEP0()

§ USBDCDSendDataEP0()

§ USBDCDSetDefaultConfiguration()

§ USBDCDStallEP0()

§ USBDCDPowerStatusSet()

§ USBDCDFeatureSet()

§ USBDCDFeatureGet()

§ USBDCDRemoteWakeLPM()

§ USBDCDRemoteWakeupRequest()

§ USBDeviceResumeTickHandler()

§ USBDeviceEnumHandler()

§ USBDeviceEnumResetHandler()

§ USBDeviceIntHandlerInternal()

§ USB0_IRQDeviceHandler()

Variable Documentation

§ g_psDCDInst

§ g_ppsDevInfo