diff options
Diffstat (limited to 'LUFA/Drivers/USB/LowLevel/Host.h')
| -rw-r--r-- | LUFA/Drivers/USB/LowLevel/Host.h | 364 |
1 files changed, 213 insertions, 151 deletions
diff --git a/LUFA/Drivers/USB/LowLevel/Host.h b/LUFA/Drivers/USB/LowLevel/Host.h index d83431b32..3f639c158 100644 --- a/LUFA/Drivers/USB/LowLevel/Host.h +++ b/LUFA/Drivers/USB/LowLevel/Host.h @@ -100,148 +100,6 @@ */ #define HOST_DEVICE_SETTLE_DELAY_MS 1500 #endif - - /* Pseudo-Function Macros: */ - #if defined(__DOXYGEN__) - /** Resets the USB bus, including the endpoints in any attached device and pipes on the AVR host. - * USB bus resets leave the default control pipe configured (if already configured). - * - * If the USB bus has been suspended prior to issuing a bus reset, the attached device will be - * woken up automatically and the bus resumed after the reset has been correctly issued. - */ - static inline void USB_Host_ResetBus(void); - - /** Determines if a previously issued bus reset (via the \ref USB_Host_ResetBus() macro) has - * completed. - * - * \return Boolean true if no bus reset is currently being sent, false otherwise. - */ - static inline void USB_Host_IsBusResetComplete(void); - - /** Resumes USB communications with an attached and enumerated device, by resuming the transmission - * of the 1MS Start Of Frame messages to the device. When resumed, USB communications between the - * host and attached device may occur. - */ - static inline void USB_Host_ResumeBus(void); - - /** Suspends the USB bus, preventing any communications from occurring between the host and attached - * device until the bus has been resumed. This stops the transmission of the 1MS Start Of Frame - * messages to the device. - */ - static inline void USB_Host_SuspendBus(void); - - /** Determines if the USB bus has been suspended via the use of the \ref USB_Host_SuspendBus() macro, - * false otherwise. While suspended, no USB communications can occur until the bus is resumed, - * except for the Remote Wakeup event from the device if supported. - * - * \return Boolean true if the bus is currently suspended, false otherwise. - */ - static inline bool USB_Host_IsBusSuspended(void); - - /** Determines if the attached device is currently enumerated in Full Speed mode (12Mb/s), or - * false if the attached device is enumerated in Low Speed mode (1.5Mb/s). - * - * \return Boolean true if the attached device is enumerated in Full Speed mode, false otherwise. - */ - static inline bool USB_Host_IsDeviceFullSpeed(void); - - /** Determines if the attached device is currently issuing a Remote Wakeup request, requesting - * that the host resume the USB bus and wake up the device, false otherwise. - * - * \return Boolean true if the attached device has sent a Remote Wakeup request, false otherwise. - */ - static inline bool USB_Host_IsRemoteWakeupSent(void); - - /** Clears the flag indicating that a Remote Wakeup request has been issued by an attached device. */ - static inline void USB_Host_ClearRemoteWakeupSent(void); - - /** Accepts a Remote Wakeup request from an attached device. This must be issued in response to - * a device's Remote Wakeup request within 2ms for the request to be accepted and the bus to - * be resumed. - */ - static inline void USB_Host_ResumeFromWakeupRequest(void); - - /** Determines if a resume from Remote Wakeup request is currently being sent to an attached - * device. - * - * \return Boolean true if no resume request is currently being sent, false otherwise. - */ - static inline bool USB_Host_IsResumeFromWakeupRequestSent(void); - #else - #define USB_Host_ResetBus() MACROS{ UHCON |= (1 << RESET); }MACROE - - #define USB_Host_IsBusResetComplete() ((UHCON & (1 << RESET)) ? false : true) - - #define USB_Host_ResumeBus() MACROS{ UHCON |= (1 << SOFEN); }MACROE - - #define USB_Host_SuspendBus() MACROS{ UHCON &= ~(1 << SOFEN); }MACROE - - #define USB_Host_IsBusSuspended() ((UHCON & (1 << SOFEN)) ? false : true) - - #define USB_Host_IsDeviceFullSpeed() ((USBSTA & (1 << SPEED)) ? true : false) - - #define USB_Host_IsRemoteWakeupSent() ((UHINT & (1 << RXRSMI)) ? true : false) - - #define USB_Host_ClearRemoteWakeupSent() MACROS{ UHINT &= ~(1 << RXRSMI); }MACROE - - #define USB_Host_ResumeFromWakeupRequest() MACROS{ UHCON |= (1 << RESUME); }MACROE - - #define USB_Host_IsResumeFromWakeupRequestSent() ((UHCON & (1 << RESUME)) ? false : true) - #endif - - /* Function Prototypes: */ - /** Convenience function. This routine sends a SetConfiguration standard request to the attached - * device, with the given configuration index. This can be used to easily set the device - * configuration without creating and sending the request manually. - * - * \note After this routine returns, the control pipe will be selected. - * - * \param[in] ConfigNumber Configuration index to send to the device. - * - * \return A value from the \ref USB_Host_SendControlErrorCodes_t enum to indicate the result. - */ - uint8_t USB_Host_SetDeviceConfiguration(const uint8_t ConfigNumber); - - /** Convenience function. This routine sends a GetDescriptor standard request to the attached - * device, requesting the device descriptor. This can be used to easily retrieve information - * about the device such as its VID, PID and power requirements. - * - * \note After this routine returns, the control pipe will be selected. - * - * \param[out] DeviceDescriptorPtr Pointer to the destination device descriptor structure where - * the read data is to be stored. - * - * \return A value from the \ref USB_Host_SendControlErrorCodes_t enum to indicate the result. - */ - uint8_t USB_Host_GetDeviceDescriptor(void* const DeviceDescriptorPtr); - - /** Convenience function. This routine sends a GetDescriptor standard request to the attached - * device, requesting the string descriptor of the specified index. This can be used to easily - * retrieve string descriptors from the device by index, after the index is obtained from the - * Device or Configuration descriptors. - * - * \note After this routine returns, the control pipe will be selected. - * - * \param[in] Index Index of the string index to retrieve. - * \param[out] Buffer Pointer to the destination buffer where the retrieved string descriptor is - * to be stored. - * \param[in] BufferLength Maximum size of the string descriptor which can be stored into the buffer. - * - * \return A value from the \ref USB_Host_SendControlErrorCodes_t enum to indicate the result. - */ - uint8_t USB_Host_GetDeviceStringDescriptor(const uint8_t Index, - void* const Buffer, - const uint8_t BufferLength); - - /** Clears a stall condition on the given pipe, via a ClearFeature request to the attached device. - * - * \note After this routine returns, the control pipe will be selected. - * - * \param[in] EndpointIndex Index of the endpoint to clear. - * - * \return A value from the \ref USB_Host_SendControlErrorCodes_t enum to indicate the result. - */ - uint8_t USB_Host_ClearPipeStall(uint8_t EndpointIndex); /* Enums: */ /** Enum for the various states of the USB Host state machine. Only some states are @@ -385,22 +243,226 @@ */ }; + /* Inline Functions: */ + /** Resets the USB bus, including the endpoints in any attached device and pipes on the AVR host. + * USB bus resets leave the default control pipe configured (if already configured). + * + * If the USB bus has been suspended prior to issuing a bus reset, the attached device will be + * woken up automatically and the bus resumed after the reset has been correctly issued. + */ + static inline void USB_Host_ResetBus(void) ATTR_ALWAYS_INLINE; + static inline void USB_Host_ResetBus(void) + { + UHCON |= (1 << RESET); + } + + /** Determines if a previously issued bus reset (via the \ref USB_Host_ResetBus() macro) has + * completed. + * + * \return Boolean true if no bus reset is currently being sent, false otherwise. + */ + static inline bool USB_Host_IsBusResetComplete(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE; + static inline bool USB_Host_IsBusResetComplete(void) + { + return ((UHCON & (1 << RESET)) ? false : true); + } + + /** Resumes USB communications with an attached and enumerated device, by resuming the transmission + * of the 1MS Start Of Frame messages to the device. When resumed, USB communications between the + * host and attached device may occur. + */ + static inline void USB_Host_ResumeBus(void) ATTR_ALWAYS_INLINE; + static inline void USB_Host_ResumeBus(void) + { + UHCON |= (1 << SOFEN); + } + + /** Suspends the USB bus, preventing any communications from occurring between the host and attached + * device until the bus has been resumed. This stops the transmission of the 1MS Start Of Frame + * messages to the device. + */ + static inline void USB_Host_SuspendBus(void) ATTR_ALWAYS_INLINE; + static inline void USB_Host_SuspendBus(void) + { + UHCON &= ~(1 << SOFEN); + } + + /** Determines if the USB bus has been suspended via the use of the \ref USB_Host_SuspendBus() macro, + * false otherwise. While suspended, no USB communications can occur until the bus is resumed, + * except for the Remote Wakeup event from the device if supported. + * + * \return Boolean true if the bus is currently suspended, false otherwise. + */ + static inline bool USB_Host_IsBusSuspended(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE; + static inline bool USB_Host_IsBusSuspended(void) + { + return ((UHCON & (1 << SOFEN)) ? false : true); + } + + /** Determines if the attached device is currently enumerated in Full Speed mode (12Mb/s), or + * false if the attached device is enumerated in Low Speed mode (1.5Mb/s). + * + * \return Boolean true if the attached device is enumerated in Full Speed mode, false otherwise. + */ + static inline bool USB_Host_IsDeviceFullSpeed(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE; + static inline bool USB_Host_IsDeviceFullSpeed(void) + { + return ((USBSTA & (1 << SPEED)) ? true : false); + } + + /** Determines if the attached device is currently issuing a Remote Wakeup request, requesting + * that the host resume the USB bus and wake up the device, false otherwise. + * + * \return Boolean true if the attached device has sent a Remote Wakeup request, false otherwise. + */ + static inline bool USB_Host_IsRemoteWakeupSent(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE; + static inline bool USB_Host_IsRemoteWakeupSent(void) + { + return ((UHINT & (1 << RXRSMI)) ? true : false); + } + + /** Clears the flag indicating that a Remote Wakeup request has been issued by an attached device. */ + static inline void USB_Host_ClearRemoteWakeupSent(void) ATTR_ALWAYS_INLINE; + static inline void USB_Host_ClearRemoteWakeupSent(void) + { + UHINT &= ~(1 << RXRSMI); + } + + /** Accepts a Remote Wakeup request from an attached device. This must be issued in response to + * a device's Remote Wakeup request within 2ms for the request to be accepted and the bus to + * be resumed. + */ + static inline void USB_Host_ResumeFromWakeupRequest(void) ATTR_ALWAYS_INLINE; + static inline void USB_Host_ResumeFromWakeupRequest(void) + { + UHCON |= (1 << RESUME); + } + + /** Determines if a resume from Remote Wakeup request is currently being sent to an attached + * device. + * + * \return Boolean true if no resume request is currently being sent, false otherwise. + */ + static inline bool USB_Host_IsResumeFromWakeupRequestSent(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE; + static inline bool USB_Host_IsResumeFromWakeupRequestSent(void) + { + return ((UHCON & (1 << RESUME)) ? false : true); + } + + /* Function Prototypes: */ + /** Convenience function. This routine sends a SetConfiguration standard request to the attached + * device, with the given configuration index. This can be used to easily set the device + * configuration without creating and sending the request manually. + * + * \note After this routine returns, the control pipe will be selected. + * + * \param[in] ConfigNumber Configuration index to send to the device. + * + * \return A value from the \ref USB_Host_SendControlErrorCodes_t enum to indicate the result. + */ + uint8_t USB_Host_SetDeviceConfiguration(const uint8_t ConfigNumber); + + /** Convenience function. This routine sends a GetDescriptor standard request to the attached + * device, requesting the device descriptor. This can be used to easily retrieve information + * about the device such as its VID, PID and power requirements. + * + * \note After this routine returns, the control pipe will be selected. + * + * \param[out] DeviceDescriptorPtr Pointer to the destination device descriptor structure where + * the read data is to be stored. + * + * \return A value from the \ref USB_Host_SendControlErrorCodes_t enum to indicate the result. + */ + uint8_t USB_Host_GetDeviceDescriptor(void* const DeviceDescriptorPtr); + + /** Convenience function. This routine sends a GetDescriptor standard request to the attached + * device, requesting the string descriptor of the specified index. This can be used to easily + * retrieve string descriptors from the device by index, after the index is obtained from the + * Device or Configuration descriptors. + * + * \note After this routine returns, the control pipe will be selected. + * + * \param[in] Index Index of the string index to retrieve. + * \param[out] Buffer Pointer to the destination buffer where the retrieved string descriptor is + * to be stored. + * \param[in] BufferLength Maximum size of the string descriptor which can be stored into the buffer. + * + * \return A value from the \ref USB_Host_SendControlErrorCodes_t enum to indicate the result. + */ + uint8_t USB_Host_GetDeviceStringDescriptor(const uint8_t Index, + void* const Buffer, + const uint8_t BufferLength); + + /** Clears a stall condition on the given pipe, via a ClearFeature request to the attached device. + * + * \note After this routine returns, the control pipe will be selected. + * + * \param[in] EndpointIndex Index of the endpoint to clear. + * + * \return A value from the \ref USB_Host_SendControlErrorCodes_t enum to indicate the result. + */ + uint8_t USB_Host_ClearPipeStall(uint8_t EndpointIndex); + /* Private Interface - For use in library only: */ #if !defined(__DOXYGEN__) /* Macros: */ - #define USB_Host_HostMode_On() MACROS{ USBCON |= (1 << HOST); }MACROE - #define USB_Host_HostMode_Off() MACROS{ USBCON &= ~(1 << HOST); }MACROE + static inline void USB_Host_HostMode_On(void) ATTR_ALWAYS_INLINE; + static inline void USB_Host_HostMode_On(void) + { + USBCON |= (1 << HOST); + } + + static inline void USB_Host_HostMode_Off(void) ATTR_ALWAYS_INLINE; + static inline void USB_Host_HostMode_Off(void) + { + USBCON &= ~(1 << HOST); + } + + static inline void USB_Host_VBUS_Auto_Enable(void) ATTR_ALWAYS_INLINE; + static inline void USB_Host_VBUS_Auto_Enable(void) + { + OTGCON &= ~(1 << VBUSHWC); + UHWCON |= (1 << UVCONE); + } + + static inline void USB_Host_VBUS_Manual_Enable(void) ATTR_ALWAYS_INLINE; + static inline void USB_Host_VBUS_Manual_Enable(void) + { + OTGCON |= (1 << VBUSHWC); + UHWCON &= ~(1 << UVCONE); + + DDRE |= (1 << 7); + } - #define USB_Host_VBUS_Auto_Enable() MACROS{ OTGCON &= ~(1 << VBUSHWC); UHWCON |= (1 << UVCONE); }MACROE - #define USB_Host_VBUS_Manual_Enable() MACROS{ OTGCON |= (1 << VBUSHWC); UHWCON &= ~(1 << UVCONE); DDRE |= (1 << 7); }MACROE + static inline void USB_Host_VBUS_Auto_On(void) ATTR_ALWAYS_INLINE; + static inline void USB_Host_VBUS_Auto_On(void) + { + OTGCON |= (1 << VBUSREQ); + } - #define USB_Host_VBUS_Auto_On() MACROS{ OTGCON |= (1 << VBUSREQ); }MACROE - #define USB_Host_VBUS_Manual_On() MACROS{ PORTE |= (1 << 7); }MACROE + static inline void USB_Host_VBUS_Manual_On(void) ATTR_ALWAYS_INLINE; + static inline void USB_Host_VBUS_Manual_On(void) + { + PORTE |= (1 << 7); + } + + static inline void USB_Host_VBUS_Auto_Off(void) ATTR_ALWAYS_INLINE; + static inline void USB_Host_VBUS_Auto_Off(void) + { + OTGCON |= (1 << VBUSRQC); + } - #define USB_Host_VBUS_Auto_Off() MACROS{ OTGCON |= (1 << VBUSRQC); }MACROE - #define USB_Host_VBUS_Manual_Off() MACROS{ PORTE &= ~(1 << 7); }MACROE + static inline void USB_Host_VBUS_Manual_Off(void) ATTR_ALWAYS_INLINE; + static inline void USB_Host_VBUS_Manual_Off(void) + { + PORTE &= ~(1 << 7); + } - #define USB_Host_SetDeviceAddress(addr) MACROS{ UHADDR = ((addr) & 0x7F); }MACROE + static inline void USB_Host_SetDeviceAddress(const uint8_t Address) ATTR_ALWAYS_INLINE; + static inline void USB_Host_SetDeviceAddress(const uint8_t Address) + { + UHADDR = (Address & 0x7F); + } /* Enums: */ enum USB_Host_WaitMSErrorCodes_t |