You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
690 lines
27 KiB
C
690 lines
27 KiB
C
/*
|
|
LUFA Library
|
|
Copyright (C) Dean Camera, 2017.
|
|
|
|
dean [at] fourwalledcubicle [dot] com
|
|
www.lufa-lib.org
|
|
*/
|
|
|
|
/*
|
|
Copyright 2017 Dean Camera (dean [at] fourwalledcubicle [dot] com)
|
|
|
|
Permission to use, copy, modify, distribute, and sell this
|
|
software and its documentation for any purpose is hereby granted
|
|
without fee, provided that the above copyright notice appear in
|
|
all copies and that both that the copyright notice and this
|
|
permission notice and warranty disclaimer appear in supporting
|
|
documentation, and that the name of the author not be used in
|
|
advertising or publicity pertaining to distribution of the
|
|
software without specific, written prior permission.
|
|
|
|
The author disclaims all warranties with regard to this
|
|
software, including all implied warranties of merchantability
|
|
and fitness. In no event shall the author be liable for any
|
|
special, indirect or consequential damages or any damages
|
|
whatsoever resulting from loss of use, data or profits, whether
|
|
in an action of contract, negligence or other tortious action,
|
|
arising out of or in connection with the use or performance of
|
|
this software.
|
|
*/
|
|
|
|
/** \file
|
|
* \brief USB Endpoint definitions for the AVR XMEGA microcontrollers.
|
|
* \copydetails Group_EndpointManagement_XMEGA
|
|
*
|
|
* \note This file should not be included directly. It is automatically included as needed by the USB driver
|
|
* dispatch header located in LUFA/Drivers/USB/USB.h.
|
|
*/
|
|
|
|
/** \ingroup Group_EndpointRW
|
|
* \defgroup Group_EndpointRW_XMEGA Endpoint Data Reading and Writing (XMEGA)
|
|
* \brief Endpoint data read/write definitions for the Atmel AVR XMEGA architecture.
|
|
*
|
|
* Functions, macros, variables, enums and types related to data reading and writing from and to endpoints.
|
|
*/
|
|
|
|
/** \ingroup Group_EndpointPrimitiveRW
|
|
* \defgroup Group_EndpointPrimitiveRW_XMEGA Read/Write of Primitive Data Types (XMEGA)
|
|
* \brief Endpoint primitive read/write definitions for the Atmel AVR XMEGA architecture.
|
|
*
|
|
* Functions, macros, variables, enums and types related to data reading and writing of primitive data types
|
|
* from and to endpoints.
|
|
*/
|
|
|
|
/** \ingroup Group_EndpointPacketManagement
|
|
* \defgroup Group_EndpointPacketManagement_XMEGA Endpoint Packet Management (XMEGA)
|
|
* \brief Endpoint packet management definitions for the Atmel AVR XMEGA architecture.
|
|
*
|
|
* Functions, macros, variables, enums and types related to packet management of endpoints.
|
|
*/
|
|
|
|
/** \ingroup Group_EndpointManagement
|
|
* \defgroup Group_EndpointManagement_XMEGA Endpoint Management (XMEGA)
|
|
* \brief Endpoint management definitions for the Atmel AVR XMEGA architecture.
|
|
*
|
|
* Functions, macros and enums related to endpoint management when in USB Device mode. This
|
|
* module contains the endpoint management macros, as well as endpoint interrupt and data
|
|
* send/receive functions for various data types.
|
|
*
|
|
* @{
|
|
*/
|
|
|
|
#ifndef __ENDPOINT_XMEGA_H__
|
|
#define __ENDPOINT_XMEGA_H__
|
|
|
|
/* Includes: */
|
|
#include "../../../../Common/Common.h"
|
|
#include "../USBTask.h"
|
|
#include "../USBInterrupt.h"
|
|
#include "../USBController.h"
|
|
|
|
/* Enable C linkage for C++ Compilers: */
|
|
#if defined(__cplusplus)
|
|
extern "C" {
|
|
#endif
|
|
|
|
/* Preprocessor Checks: */
|
|
#if !defined(__INCLUDE_FROM_USB_DRIVER)
|
|
#error Do not include this file directly. Include LUFA/Drivers/USB/USB.h instead.
|
|
#endif
|
|
|
|
/* Public Interface - May be used in end-application: */
|
|
/* Macros: */
|
|
#if (!defined(MAX_ENDPOINT_INDEX) && !defined(CONTROL_ONLY_DEVICE)) || defined(__DOXYGEN__)
|
|
/** Total number of endpoints (including the default control endpoint at address 0) which may
|
|
* be used in the device. Different USB AVR models support different amounts of endpoints,
|
|
* this value reflects the maximum number of endpoints for the currently selected AVR model.
|
|
*/
|
|
#define ENDPOINT_TOTAL_ENDPOINTS 16
|
|
#else
|
|
#if defined(CONTROL_ONLY_DEVICE)
|
|
#define ENDPOINT_TOTAL_ENDPOINTS 1
|
|
#else
|
|
#define ENDPOINT_TOTAL_ENDPOINTS (MAX_ENDPOINT_INDEX + 1)
|
|
#endif
|
|
#endif
|
|
|
|
/* Private Interface - For use in library only: */
|
|
#if !defined(__DOXYGEN__)
|
|
/* Type Defines: */
|
|
typedef struct
|
|
{
|
|
uint8_t Data[64];
|
|
|
|
uint8_t Length;
|
|
uint8_t Position;
|
|
} Endpoint_FIFO_t;
|
|
|
|
typedef struct
|
|
{
|
|
Endpoint_FIFO_t OUT;
|
|
Endpoint_FIFO_t IN;
|
|
} Endpoint_FIFOPair_t;
|
|
|
|
/* External Variables: */
|
|
extern Endpoint_FIFOPair_t USB_Endpoint_FIFOs[ENDPOINT_TOTAL_ENDPOINTS];
|
|
extern volatile uint8_t USB_Endpoint_SelectedEndpoint;
|
|
extern volatile USB_EP_t* USB_Endpoint_SelectedHandle;
|
|
extern volatile Endpoint_FIFO_t* USB_Endpoint_SelectedFIFO;
|
|
|
|
/* Inline Functions: */
|
|
static inline uint8_t Endpoint_BytesToEPSizeMask(const uint16_t Bytes) ATTR_WARN_UNUSED_RESULT ATTR_CONST
|
|
ATTR_ALWAYS_INLINE;
|
|
static inline uint8_t Endpoint_BytesToEPSizeMask(const uint16_t Bytes)
|
|
{
|
|
uint8_t MaskVal = 0;
|
|
uint16_t CheckBytes = 8;
|
|
|
|
while (CheckBytes < Bytes)
|
|
{
|
|
MaskVal++;
|
|
CheckBytes <<= 1;
|
|
}
|
|
|
|
return (MaskVal << USB_EP_BUFSIZE_gp);
|
|
}
|
|
|
|
/* Function Prototypes: */
|
|
bool Endpoint_ConfigureEndpoint_PRV(const uint8_t Address,
|
|
const uint8_t Config,
|
|
const uint8_t Size);
|
|
void Endpoint_ClearEndpoints(void);
|
|
#endif
|
|
|
|
/* Public Interface - May be used in end-application: */
|
|
/* Macros: */
|
|
#if (!defined(FIXED_CONTROL_ENDPOINT_SIZE) || defined(__DOXYGEN__))
|
|
/** Default size of the default control endpoint's bank, until altered by the control endpoint bank size
|
|
* value in the device descriptor. Not available if the \c FIXED_CONTROL_ENDPOINT_SIZE token is defined.
|
|
*/
|
|
#define ENDPOINT_CONTROLEP_DEFAULT_SIZE 8
|
|
#endif
|
|
|
|
/* Enums: */
|
|
/** Enum for the possible error return codes of the \ref Endpoint_WaitUntilReady() function.
|
|
*
|
|
* \ingroup Group_EndpointRW_XMEGA
|
|
*/
|
|
enum Endpoint_WaitUntilReady_ErrorCodes_t
|
|
{
|
|
ENDPOINT_READYWAIT_NoError = 0, /**< Endpoint is ready for next packet, no error. */
|
|
ENDPOINT_READYWAIT_EndpointStalled = 1, /**< The endpoint was stalled during the stream
|
|
* transfer by the host or device.
|
|
*/
|
|
ENDPOINT_READYWAIT_DeviceDisconnected = 2, /**< Device was disconnected from the host while
|
|
* waiting for the endpoint to become ready.
|
|
*/
|
|
ENDPOINT_READYWAIT_BusSuspended = 3, /**< The USB bus has been suspended by the host and
|
|
* no USB endpoint traffic can occur until the bus
|
|
* has resumed.
|
|
*/
|
|
ENDPOINT_READYWAIT_Timeout = 4, /**< The host failed to accept or send the next packet
|
|
* within the software timeout period set by the
|
|
* \ref USB_STREAM_TIMEOUT_MS macro.
|
|
*/
|
|
};
|
|
|
|
/* Inline Functions: */
|
|
/** Selects the given endpoint address.
|
|
*
|
|
* Any endpoint operations which do not require the endpoint address to be indicated will operate on
|
|
* the currently selected endpoint.
|
|
*
|
|
* \param[in] Address Endpoint address to select.
|
|
*/
|
|
void Endpoint_SelectEndpoint(const uint8_t Address);
|
|
|
|
/** Configures the specified endpoint address with the given endpoint type, bank size and number of hardware
|
|
* banks. Once configured, the endpoint may be read from or written to, depending on its direction.
|
|
*
|
|
* \param[in] Address Endpoint address to configure.
|
|
*
|
|
* \param[in] Type Type of endpoint to configure, a \c EP_TYPE_* mask. Not all endpoint types
|
|
* are available on Low Speed USB devices - refer to the USB 2.0 specification.
|
|
*
|
|
* \param[in] Size Size of the endpoint's bank, where packets are stored before they are transmitted
|
|
* to the USB host, or after they have been received from the USB host (depending on
|
|
* the endpoint's data direction). The bank size must indicate the maximum packet size
|
|
* that the endpoint can handle.
|
|
*
|
|
* \param[in] Banks Number of hardware banks to use for the endpoint being configured.
|
|
*
|
|
* \note The default control endpoint should not be manually configured by the user application, as
|
|
* it is automatically configured by the library internally.
|
|
* \n\n
|
|
*
|
|
* \note This routine will automatically select the specified endpoint.
|
|
*
|
|
* \return Boolean \c true if the configuration succeeded, \c false otherwise.
|
|
*/
|
|
static inline bool Endpoint_ConfigureEndpoint(const uint8_t Address,
|
|
const uint8_t Type,
|
|
const uint16_t Size,
|
|
const uint8_t Banks) ATTR_ALWAYS_INLINE;
|
|
static inline bool Endpoint_ConfigureEndpoint(const uint8_t Address,
|
|
const uint8_t Type,
|
|
const uint16_t Size,
|
|
const uint8_t Banks)
|
|
{
|
|
uint8_t EPConfigMask = (USB_EP_INTDSBL_bm | ((Banks > 1) ? USB_EP_PINGPONG_bm : 0) | Endpoint_BytesToEPSizeMask(Size));
|
|
|
|
if ((Address & ENDPOINT_EPNUM_MASK) >= ENDPOINT_TOTAL_ENDPOINTS)
|
|
return false;
|
|
|
|
// TODO - Fix once limitations are lifted
|
|
EPConfigMask &= ~USB_EP_PINGPONG_bm;
|
|
if (Size > 64)
|
|
return false;
|
|
|
|
switch (Type)
|
|
{
|
|
case EP_TYPE_CONTROL:
|
|
EPConfigMask |= USB_EP_TYPE_CONTROL_gc;
|
|
break;
|
|
case EP_TYPE_ISOCHRONOUS:
|
|
EPConfigMask |= USB_EP_TYPE_ISOCHRONOUS_gc;
|
|
break;
|
|
default:
|
|
EPConfigMask |= USB_EP_TYPE_BULK_gc;
|
|
break;
|
|
}
|
|
|
|
if (Type == EP_TYPE_CONTROL)
|
|
Endpoint_ConfigureEndpoint_PRV(Address ^ ENDPOINT_DIR_IN, EPConfigMask, Size);
|
|
|
|
return Endpoint_ConfigureEndpoint_PRV(Address, EPConfigMask, Size);
|
|
}
|
|
|
|
/** Indicates the number of bytes currently stored in the current endpoint's selected bank.
|
|
*
|
|
* \ingroup Group_EndpointRW_XMEGA
|
|
*
|
|
* \return Total number of bytes in the currently selected Endpoint's FIFO buffer.
|
|
*/
|
|
static inline uint16_t Endpoint_BytesInEndpoint(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
|
|
static inline uint16_t Endpoint_BytesInEndpoint(void)
|
|
{
|
|
if (USB_Endpoint_SelectedEndpoint & ENDPOINT_DIR_IN)
|
|
return USB_Endpoint_SelectedFIFO->Position;
|
|
else
|
|
return (USB_Endpoint_SelectedFIFO->Length - USB_Endpoint_SelectedFIFO->Position);
|
|
}
|
|
|
|
/** Get the endpoint address of the currently selected endpoint. This is typically used to save
|
|
* the currently selected endpoint so that it can be restored after another endpoint has been
|
|
* manipulated.
|
|
*
|
|
* \return Index of the currently selected endpoint.
|
|
*/
|
|
static inline uint8_t Endpoint_GetCurrentEndpoint(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
|
|
static inline uint8_t Endpoint_GetCurrentEndpoint(void)
|
|
{
|
|
return USB_Endpoint_SelectedEndpoint;
|
|
}
|
|
|
|
/** Resets the endpoint bank FIFO. This clears all the endpoint banks and resets the USB controller's
|
|
* data In and Out pointers to the bank's contents.
|
|
*
|
|
* \param[in] Address Endpoint address whose FIFO buffers are to be reset.
|
|
*/
|
|
static inline void Endpoint_ResetEndpoint(const uint8_t Address) ATTR_ALWAYS_INLINE;
|
|
static inline void Endpoint_ResetEndpoint(const uint8_t Address)
|
|
{
|
|
if (Address & ENDPOINT_DIR_IN)
|
|
USB_Endpoint_FIFOs[Address & ENDPOINT_EPNUM_MASK].IN.Position = 0;
|
|
else
|
|
USB_Endpoint_FIFOs[Address & ENDPOINT_EPNUM_MASK].OUT.Position = 0;
|
|
}
|
|
|
|
/** Determines if the currently selected endpoint is enabled, but not necessarily configured.
|
|
*
|
|
* \return Boolean \c true if the currently selected endpoint is enabled, \c false otherwise.
|
|
*/
|
|
static inline bool Endpoint_IsEnabled(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
|
|
static inline bool Endpoint_IsEnabled(void)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
/** Aborts all pending IN transactions on the currently selected endpoint, once the bank
|
|
* has been queued for transmission to the host via \ref Endpoint_ClearIN(). This function
|
|
* will terminate all queued transactions, resetting the endpoint banks ready for a new
|
|
* packet.
|
|
*
|
|
* \ingroup Group_EndpointPacketManagement_XMEGA
|
|
*/
|
|
static inline void Endpoint_AbortPendingIN(void)
|
|
{
|
|
USB_Endpoint_SelectedHandle->STATUS |= USB_EP_BUSNACK0_bm;
|
|
}
|
|
|
|
/** Determines if the currently selected endpoint may be read from (if data is waiting in the endpoint
|
|
* bank and the endpoint is an OUT direction, or if the bank is not yet full if the endpoint is an IN
|
|
* direction). This function will return false if an error has occurred in the endpoint, if the endpoint
|
|
* is an OUT direction and no packet (or an empty packet) has been received, or if the endpoint is an IN
|
|
* direction and the endpoint bank is full.
|
|
*
|
|
* \ingroup Group_EndpointPacketManagement_XMEGA
|
|
*
|
|
* \return Boolean \c true if the currently selected endpoint may be read from or written to, depending
|
|
* on its direction.
|
|
*/
|
|
static inline bool Endpoint_IsReadWriteAllowed(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
|
|
static inline bool Endpoint_IsReadWriteAllowed(void)
|
|
{
|
|
return (USB_Endpoint_SelectedFIFO->Position < USB_Endpoint_SelectedFIFO->Length);
|
|
}
|
|
|
|
/** Determines if the currently selected endpoint is configured.
|
|
*
|
|
* \return Boolean \c true if the currently selected endpoint has been configured, \c false otherwise.
|
|
*/
|
|
static inline bool Endpoint_IsConfigured(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
|
|
static inline bool Endpoint_IsConfigured(void)
|
|
{
|
|
return ((USB_Endpoint_SelectedHandle->CTRL & USB_EP_TYPE_gm) ? true : false);
|
|
}
|
|
|
|
/** Determines if the selected IN endpoint is ready for a new packet to be sent to the host.
|
|
*
|
|
* \ingroup Group_EndpointPacketManagement_XMEGA
|
|
*
|
|
* \return Boolean \c true if the current endpoint is ready for an IN packet, \c false otherwise.
|
|
*/
|
|
bool Endpoint_IsINReady(void) ATTR_WARN_UNUSED_RESULT;
|
|
|
|
/** Determines if the selected OUT endpoint has received new packet from the host.
|
|
*
|
|
* \ingroup Group_EndpointPacketManagement_XMEGA
|
|
*
|
|
* \return Boolean \c true if current endpoint is has received an OUT packet, \c false otherwise.
|
|
*/
|
|
bool Endpoint_IsOUTReceived(void) ATTR_WARN_UNUSED_RESULT;
|
|
|
|
/** Determines if the current CONTROL type endpoint has received a SETUP packet.
|
|
*
|
|
* \ingroup Group_EndpointPacketManagement_XMEGA
|
|
*
|
|
* \return Boolean \c true if the selected endpoint has received a SETUP packet, \c false otherwise.
|
|
*/
|
|
bool Endpoint_IsSETUPReceived(void) ATTR_WARN_UNUSED_RESULT;
|
|
|
|
/** Clears a received SETUP packet on the currently selected CONTROL type endpoint, freeing up the
|
|
* endpoint for the next packet.
|
|
*
|
|
* \ingroup Group_EndpointPacketManagement_XMEGA
|
|
*
|
|
* \note This is not applicable for non CONTROL type endpoints.
|
|
*/
|
|
void Endpoint_ClearSETUP(void);
|
|
|
|
/** Sends an IN packet to the host on the currently selected endpoint, freeing up the endpoint for the
|
|
* next packet and switching to the alternative endpoint bank if double banked.
|
|
*
|
|
* \ingroup Group_EndpointPacketManagement_XMEGA
|
|
*/
|
|
void Endpoint_ClearIN(void);
|
|
|
|
/** Acknowledges an OUT packet to the host on the currently selected endpoint, freeing up the endpoint
|
|
* for the next packet and switching to the alternative endpoint bank if double banked.
|
|
*
|
|
* \ingroup Group_EndpointPacketManagement_XMEGA
|
|
*/
|
|
void Endpoint_ClearOUT(void);
|
|
|
|
/** Stalls the current endpoint, indicating to the host that a logical problem occurred with the
|
|
* indicated endpoint and that the current transfer sequence should be aborted. This provides a
|
|
* way for devices to indicate invalid commands to the host so that the current transfer can be
|
|
* aborted and the host can begin its own recovery sequence.
|
|
*
|
|
* The currently selected endpoint remains stalled until either the \ref Endpoint_ClearStall() macro
|
|
* is called, or the host issues a CLEAR FEATURE request to the device for the currently selected
|
|
* endpoint.
|
|
*
|
|
* \ingroup Group_EndpointPacketManagement_XMEGA
|
|
*/
|
|
void Endpoint_StallTransaction(void);
|
|
|
|
/** Clears the STALL condition on the currently selected endpoint.
|
|
*
|
|
* \ingroup Group_EndpointPacketManagement_XMEGA
|
|
*/
|
|
static inline void Endpoint_ClearStall(void) ATTR_ALWAYS_INLINE;
|
|
static inline void Endpoint_ClearStall(void)
|
|
{
|
|
USB_Endpoint_SelectedHandle->CTRL &= ~USB_EP_STALL_bm;
|
|
}
|
|
|
|
/** Determines if the currently selected endpoint is stalled, \c false otherwise.
|
|
*
|
|
* \ingroup Group_EndpointPacketManagement_XMEGA
|
|
*
|
|
* \return Boolean \c true if the currently selected endpoint is stalled, \c false otherwise.
|
|
*/
|
|
static inline bool Endpoint_IsStalled(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
|
|
static inline bool Endpoint_IsStalled(void)
|
|
{
|
|
return ((USB_Endpoint_SelectedHandle->CTRL & USB_EP_STALL_bm) ? true : false);
|
|
}
|
|
|
|
/** Resets the data toggle of the currently selected endpoint. */
|
|
static inline void Endpoint_ResetDataToggle(void) ATTR_ALWAYS_INLINE;
|
|
static inline void Endpoint_ResetDataToggle(void)
|
|
{
|
|
USB_Endpoint_SelectedHandle->STATUS &= ~USB_EP_TOGGLE_bm;
|
|
}
|
|
|
|
/** Determines the currently selected endpoint's direction.
|
|
*
|
|
* \return The currently selected endpoint's direction, as a \c ENDPOINT_DIR_* mask.
|
|
*/
|
|
static inline uint8_t Endpoint_GetEndpointDirection(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
|
|
static inline uint8_t Endpoint_GetEndpointDirection(void)
|
|
{
|
|
return (USB_Endpoint_SelectedEndpoint & ENDPOINT_DIR_IN);
|
|
}
|
|
|
|
/** Reads one byte from the currently selected endpoint's bank, for OUT direction endpoints.
|
|
*
|
|
* \ingroup Group_EndpointPrimitiveRW_XMEGA
|
|
*
|
|
* \return Next byte in the currently selected endpoint's FIFO buffer.
|
|
*/
|
|
uint8_t Endpoint_Read_8(void) ATTR_WARN_UNUSED_RESULT;
|
|
|
|
/** Writes one byte to the currently selected endpoint's bank, for IN direction endpoints.
|
|
*
|
|
* \ingroup Group_EndpointPrimitiveRW_XMEGA
|
|
*
|
|
* \param[in] Data Data to write into the the currently selected endpoint's FIFO buffer.
|
|
*/
|
|
void Endpoint_Write_8(const uint8_t Data);
|
|
|
|
/** Discards one byte from the currently selected endpoint's bank, for OUT direction endpoints.
|
|
*
|
|
* \ingroup Group_EndpointPrimitiveRW_XMEGA
|
|
*/
|
|
static inline void Endpoint_Discard_8(void) ATTR_ALWAYS_INLINE;
|
|
static inline void Endpoint_Discard_8(void)
|
|
{
|
|
USB_Endpoint_SelectedFIFO->Position++;
|
|
}
|
|
|
|
/** Reads two bytes from the currently selected endpoint's bank in little endian format, for OUT
|
|
* direction endpoints.
|
|
*
|
|
* \ingroup Group_EndpointPrimitiveRW_XMEGA
|
|
*
|
|
* \return Next two bytes in the currently selected endpoint's FIFO buffer.
|
|
*/
|
|
static inline uint16_t Endpoint_Read_16_LE(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
|
|
static inline uint16_t Endpoint_Read_16_LE(void)
|
|
{
|
|
uint16_t Byte0 = Endpoint_Read_8();
|
|
uint16_t Byte1 = Endpoint_Read_8();
|
|
|
|
return ((Byte1 << 8) | Byte0);
|
|
}
|
|
|
|
/** Reads two bytes from the currently selected endpoint's bank in big endian format, for OUT
|
|
* direction endpoints.
|
|
*
|
|
* \ingroup Group_EndpointPrimitiveRW_XMEGA
|
|
*
|
|
* \return Next two bytes in the currently selected endpoint's FIFO buffer.
|
|
*/
|
|
static inline uint16_t Endpoint_Read_16_BE(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
|
|
static inline uint16_t Endpoint_Read_16_BE(void)
|
|
{
|
|
uint16_t Byte0 = Endpoint_Read_8();
|
|
uint16_t Byte1 = Endpoint_Read_8();
|
|
|
|
return ((Byte0 << 8) | Byte1);
|
|
}
|
|
|
|
/** Writes two bytes to the currently selected endpoint's bank in little endian format, for IN
|
|
* direction endpoints.
|
|
*
|
|
* \ingroup Group_EndpointPrimitiveRW_XMEGA
|
|
*
|
|
* \param[in] Data Data to write to the currently selected endpoint's FIFO buffer.
|
|
*/
|
|
static inline void Endpoint_Write_16_LE(const uint16_t Data) ATTR_ALWAYS_INLINE;
|
|
static inline void Endpoint_Write_16_LE(const uint16_t Data)
|
|
{
|
|
Endpoint_Write_8(Data & 0xFF);
|
|
Endpoint_Write_8(Data >> 8);
|
|
}
|
|
|
|
/** Writes two bytes to the currently selected endpoint's bank in big endian format, for IN
|
|
* direction endpoints.
|
|
*
|
|
* \ingroup Group_EndpointPrimitiveRW_XMEGA
|
|
*
|
|
* \param[in] Data Data to write to the currently selected endpoint's FIFO buffer.
|
|
*/
|
|
static inline void Endpoint_Write_16_BE(const uint16_t Data) ATTR_ALWAYS_INLINE;
|
|
static inline void Endpoint_Write_16_BE(const uint16_t Data)
|
|
{
|
|
Endpoint_Write_8(Data >> 8);
|
|
Endpoint_Write_8(Data & 0xFF);
|
|
}
|
|
|
|
/** Discards two bytes from the currently selected endpoint's bank, for OUT direction endpoints.
|
|
*
|
|
* \ingroup Group_EndpointPrimitiveRW_XMEGA
|
|
*/
|
|
static inline void Endpoint_Discard_16(void) ATTR_ALWAYS_INLINE;
|
|
static inline void Endpoint_Discard_16(void)
|
|
{
|
|
Endpoint_Discard_8();
|
|
Endpoint_Discard_8();
|
|
}
|
|
|
|
/** Reads four bytes from the currently selected endpoint's bank in little endian format, for OUT
|
|
* direction endpoints.
|
|
*
|
|
* \ingroup Group_EndpointPrimitiveRW_XMEGA
|
|
*
|
|
* \return Next four bytes in the currently selected endpoint's FIFO buffer.
|
|
*/
|
|
static inline uint32_t Endpoint_Read_32_LE(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
|
|
static inline uint32_t Endpoint_Read_32_LE(void)
|
|
{
|
|
uint32_t Byte0 = Endpoint_Read_8();
|
|
uint32_t Byte1 = Endpoint_Read_8();
|
|
uint32_t Byte2 = Endpoint_Read_8();
|
|
uint32_t Byte3 = Endpoint_Read_8();
|
|
|
|
return ((Byte3 << 24) | (Byte2 << 16) | (Byte1 << 8) | Byte0);
|
|
}
|
|
|
|
/** Reads four bytes from the currently selected endpoint's bank in big endian format, for OUT
|
|
* direction endpoints.
|
|
*
|
|
* \ingroup Group_EndpointPrimitiveRW_XMEGA
|
|
*
|
|
* \return Next four bytes in the currently selected endpoint's FIFO buffer.
|
|
*/
|
|
static inline uint32_t Endpoint_Read_32_BE(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
|
|
static inline uint32_t Endpoint_Read_32_BE(void)
|
|
{
|
|
uint32_t Byte0 = Endpoint_Read_8();
|
|
uint32_t Byte1 = Endpoint_Read_8();
|
|
uint32_t Byte2 = Endpoint_Read_8();
|
|
uint32_t Byte3 = Endpoint_Read_8();
|
|
|
|
return ((Byte0 << 24) | (Byte1 << 16) | (Byte2 << 8) | Byte3);
|
|
}
|
|
|
|
/** Writes four bytes to the currently selected endpoint's bank in little endian format, for IN
|
|
* direction endpoints.
|
|
*
|
|
* \ingroup Group_EndpointPrimitiveRW_XMEGA
|
|
*
|
|
* \param[in] Data Data to write to the currently selected endpoint's FIFO buffer.
|
|
*/
|
|
static inline void Endpoint_Write_32_LE(const uint32_t Data) ATTR_ALWAYS_INLINE;
|
|
static inline void Endpoint_Write_32_LE(const uint32_t Data)
|
|
{
|
|
Endpoint_Write_8(Data & 0xFF);
|
|
Endpoint_Write_8(Data >> 8);
|
|
Endpoint_Write_8(Data >> 16);
|
|
Endpoint_Write_8(Data >> 24);
|
|
}
|
|
|
|
/** Writes four bytes to the currently selected endpoint's bank in big endian format, for IN
|
|
* direction endpoints.
|
|
*
|
|
* \ingroup Group_EndpointPrimitiveRW_XMEGA
|
|
*
|
|
* \param[in] Data Data to write to the currently selected endpoint's FIFO buffer.
|
|
*/
|
|
static inline void Endpoint_Write_32_BE(const uint32_t Data) ATTR_ALWAYS_INLINE;
|
|
static inline void Endpoint_Write_32_BE(const uint32_t Data)
|
|
{
|
|
Endpoint_Write_8(Data >> 24);
|
|
Endpoint_Write_8(Data >> 16);
|
|
Endpoint_Write_8(Data >> 8);
|
|
Endpoint_Write_8(Data & 0xFF);
|
|
}
|
|
|
|
/** Discards four bytes from the currently selected endpoint's bank, for OUT direction endpoints.
|
|
*
|
|
* \ingroup Group_EndpointPrimitiveRW_XMEGA
|
|
*/
|
|
static inline void Endpoint_Discard_32(void) ATTR_ALWAYS_INLINE;
|
|
static inline void Endpoint_Discard_32(void)
|
|
{
|
|
Endpoint_Discard_8();
|
|
Endpoint_Discard_8();
|
|
Endpoint_Discard_8();
|
|
Endpoint_Discard_8();
|
|
}
|
|
|
|
/* External Variables: */
|
|
/** Global indicating the maximum packet size of the default control endpoint located at address
|
|
* 0 in the device. This value is set to the value indicated in the device descriptor in the user
|
|
* project once the USB interface is initialized into device mode.
|
|
*
|
|
* If space is an issue, it is possible to fix this to a static value by defining the control
|
|
* endpoint size in the \c FIXED_CONTROL_ENDPOINT_SIZE token passed to the compiler in the makefile
|
|
* via the -D switch. When a fixed control endpoint size is used, the size is no longer dynamically
|
|
* read from the descriptors at runtime and instead fixed to the given value. When used, it is
|
|
* important that the descriptor control endpoint size value matches the size given as the
|
|
* \c FIXED_CONTROL_ENDPOINT_SIZE token - it is recommended that the \c FIXED_CONTROL_ENDPOINT_SIZE token
|
|
* be used in the device descriptors to ensure this.
|
|
*
|
|
* \attention This variable should be treated as read-only in the user application, and never manually
|
|
* changed in value.
|
|
*/
|
|
#if (!defined(FIXED_CONTROL_ENDPOINT_SIZE) || defined(__DOXYGEN__))
|
|
extern uint8_t USB_Device_ControlEndpointSize;
|
|
#else
|
|
#define USB_Device_ControlEndpointSize FIXED_CONTROL_ENDPOINT_SIZE
|
|
#endif
|
|
|
|
/* Function Prototypes: */
|
|
/** Configures a table of endpoint descriptions, in sequence. This function can be used to configure multiple
|
|
* endpoints at the same time.
|
|
*
|
|
* \note Endpoints with a zero address will be ignored, thus this function cannot be used to configure the
|
|
* control endpoint.
|
|
*
|
|
* \param[in] Table Pointer to a table of endpoint descriptions.
|
|
* \param[in] Entries Number of entries in the endpoint table to configure.
|
|
*
|
|
* \return Boolean \c true if all endpoints configured successfully, \c false otherwise.
|
|
*/
|
|
bool Endpoint_ConfigureEndpointTable(const USB_Endpoint_Table_t* const Table,
|
|
const uint8_t Entries);
|
|
|
|
/** Completes the status stage of a control transfer on a CONTROL type endpoint automatically,
|
|
* with respect to the data direction. This is a convenience function which can be used to
|
|
* simplify user control request handling.
|
|
*
|
|
* \note This routine should not be called on non CONTROL type endpoints.
|
|
*/
|
|
void Endpoint_ClearStatusStage(void);
|
|
|
|
/** Spin-loops until the currently selected non-control endpoint is ready for the next packet of data
|
|
* to be read or written to it.
|
|
*
|
|
* \note This routine should not be called on CONTROL type endpoints.
|
|
*
|
|
* \ingroup Group_EndpointRW_XMEGA
|
|
*
|
|
* \return A value from the \ref Endpoint_WaitUntilReady_ErrorCodes_t enum.
|
|
*/
|
|
uint8_t Endpoint_WaitUntilReady(void);
|
|
|
|
/* Disable C linkage for C++ Compilers: */
|
|
#if defined(__cplusplus)
|
|
}
|
|
#endif
|
|
|
|
#endif
|
|
|
|
/** @} */
|
|
|