You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
158 lines
7.6 KiB
158 lines
7.6 KiB
/*
|
|
LUFA Library
|
|
Copyright (C) Dean Camera, 2009.
|
|
|
|
dean [at] fourwalledcubicle [dot] com
|
|
www.fourwalledcubicle.com
|
|
*/
|
|
|
|
/*
|
|
Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com)
|
|
|
|
Permission to use, copy, modify, and distribute this software
|
|
and its documentation for any purpose and without fee is hereby
|
|
granted, 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 disclaim 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.
|
|
*/
|
|
|
|
/** \ingroup Group_USB
|
|
* @defgroup Group_Device Device Management
|
|
*
|
|
* USB Device mode related macros and enums. This module contains macros and enums which are used when
|
|
* the USB controller is initialized in device mode.
|
|
*
|
|
* @{
|
|
*/
|
|
|
|
#ifndef __USBDEVICE_H__
|
|
#define __USBDEVICE_H__
|
|
|
|
/* Includes: */
|
|
#include <avr/pgmspace.h>
|
|
#include <avr/eeprom.h>
|
|
|
|
#include "../../../Common/Common.h"
|
|
#include "../HighLevel/StdDescriptors.h"
|
|
#include "Endpoint.h"
|
|
|
|
/* Preprocessor Checks: */
|
|
#if (defined(USE_RAM_DESCRIPTORS) && defined(USE_EEPROM_DESCRIPTORS))
|
|
#error USE_RAM_DESCRIPTORS and USE_EEPROM_DESCRIPTORS are mutually exclusive.
|
|
#endif
|
|
|
|
/* Public Interface - May be used in end-application: */
|
|
/* Macros: */
|
|
#if defined(USB_SERIES_4_AVR) || defined(USB_SERIES_6_AVR) || defined(USB_SERIES_7_AVR) || defined(__DOXYGEN__)
|
|
/** Mask for the Options parameter of the \ref USB_Init() function. This indicates that the
|
|
* USB interface should be initialized in low speed (1.5Mb/s) mode.
|
|
*
|
|
* \note Low Speed mode is not available on all USB AVR models.
|
|
*
|
|
* \note Restrictions apply on the number, size and type of endpoints which can be used
|
|
* when running in low speed mode -- refer to the USB 2.0 standard.
|
|
*/
|
|
#define USB_DEVICE_OPT_LOWSPEED (1 << 0)
|
|
#endif
|
|
|
|
/** Mask for the Options parameter of the USB_Init() function. This indicates that the
|
|
* USB interface should be initialized in full speed (12Mb/s) mode.
|
|
*/
|
|
#define USB_DEVICE_OPT_FULLSPEED (0 << 0)
|
|
|
|
/* Pseudo-Function Macros: */
|
|
#if defined(__DOXYGEN__)
|
|
/** Sends a Remote Wakeup request to the host. This signals to the host that the device should
|
|
* be taken out of suspended mode, and communications should resume.
|
|
*
|
|
* Typically, this is implemented so that HID devices (mice, keyboards, etc.) can wake up the
|
|
* host computer when the host has suspended all USB devices to enter a low power state.
|
|
*
|
|
* \note This macro should only be used if the device has indicated to the host that it
|
|
* supports the Remote Wakeup feature in the device descriptors, and should only be
|
|
* issued if the host is currently allowing remote wakeup events from the device (i.e.,
|
|
* the \ref USB_RemoteWakeupEnabled flag is set).
|
|
*
|
|
* \see \ref Group_Descriptors for more information on the RMWAKEUP feature and device descriptors.
|
|
*/
|
|
static inline void USB_Device_SendRemoteWakeup(void);
|
|
|
|
/** Indicates if a Remote Wakeup request is being sent to the host. This returns true if a
|
|
* remote wakeup is currently being sent, false otherwise.
|
|
*
|
|
* This can be used in conjunction with the \ref USB_Device_IsUSBSuspended() macro to determine if
|
|
* a sent RMWAKEUP request was accepted or rejected by the host.
|
|
*
|
|
* \note This macro should only be used if the device has indicated to the host that it
|
|
* supports the Remote Wakeup feature in the device descriptors.
|
|
*
|
|
* \see \ref Group_Descriptors for more information on the RMWAKEUP feature and device descriptors.
|
|
*
|
|
* \return Boolean true if no Remote Wakeup request is currently being sent, false otherwise
|
|
*/
|
|
static inline bool USB_Device_IsRemoteWakeupSent(void);
|
|
|
|
/** Indicates if the device is currently suspended by the host. Whilst suspended, the device is
|
|
* to enter a low power state until resumed by the host. No USB traffic to or from the device
|
|
* can occur (except for Remote Wakeup requests) during suspension by the host.
|
|
*
|
|
* \return Boolean true if the USB communications have been suspended by the host, false otherwise.
|
|
*/
|
|
static inline bool USB_Device_IsUSBSuspended(void);
|
|
#else
|
|
#define USB_Device_SendRemoteWakeup() MACROS{ UDCON |= (1 << RMWKUP); }MACROE
|
|
|
|
#define USB_Device_IsRemoteWakeupSent() ((UDCON & (1 << RMWKUP)) ? false : true)
|
|
|
|
#define USB_Device_IsUSBSuspended() ((UDINT & (1 << SUSPI)) ? true : false)
|
|
#endif
|
|
|
|
/* Function Prototypes: */
|
|
/** Function to retrieve a given descriptor's size and memory location from the given descriptor type value,
|
|
* index and language ID. This function MUST be overridden in the user application (added with full, identical
|
|
* prototype and name so that the library can call it to retrieve descriptor data.
|
|
*
|
|
* \param[in] wValue The type of the descriptor to retrieve in the upper byte, and the index in the
|
|
* lower byte (when more than one descriptor of the given type exists, such as the
|
|
* case of string descriptors). The type may be one of the standard types defined
|
|
* in the DescriptorTypes_t enum, or may be a class-specific descriptor type value.
|
|
* \param[in] wIndex The language ID of the string to return if the wValue type indicates DTYPE_String,
|
|
* otherwise zero for standard descriptors, or as defined in a class-specific
|
|
* standards.
|
|
* \param[out] DescriptorAddress Pointer to the descriptor in memory. This should be set by the routine to
|
|
* the address of the descriptor.
|
|
*
|
|
* \note By default, the library expects all descriptors to be located in flash memory via the PROGMEM attribute.
|
|
* If descriptors should be located in RAM or EEPROM instead (to speed up access in the case of RAM, or to
|
|
* allow the descriptors to be changed dynamically at runtime) either the USE_RAM_DESCRIPTORS or the
|
|
* USE_EEPROM_DESCRIPTORS tokens may be defined in the project makefile and passed to the compiler by the -D
|
|
* switch.
|
|
*
|
|
* \return Size in bytes of the descriptor if it exists, zero or \ref NO_DESCRIPTOR otherwise
|
|
*/
|
|
uint16_t CALLBACK_USB_GetDescriptor(const uint16_t wValue, const uint8_t wIndex, void** const DescriptorAddress)
|
|
ATTR_WARN_UNUSED_RESULT ATTR_NON_NULL_PTR_ARG(3);
|
|
|
|
/* Private Interface - For use in library only: */
|
|
#if !defined(__DOXYGEN__)
|
|
/* Macros: */
|
|
#define USB_Device_SetLowSpeed() MACROS{ UDCON |= (1 << LSM); }MACROE
|
|
#define USB_Device_SetHighSpeed() MACROS{ UDCON &= ~(1 << LSM); }MACROE
|
|
#endif
|
|
|
|
#endif
|
|
|
|
/** @} */
|