diff options
Diffstat (limited to 'protocol/lufa/LUFA-120730/LUFA/Drivers/Peripheral/XMEGA')
4 files changed, 0 insertions, 825 deletions
diff --git a/protocol/lufa/LUFA-120730/LUFA/Drivers/Peripheral/XMEGA/SPI_XMEGA.h b/protocol/lufa/LUFA-120730/LUFA/Drivers/Peripheral/XMEGA/SPI_XMEGA.h deleted file mode 100644 index 25fb73d16..000000000 --- a/protocol/lufa/LUFA-120730/LUFA/Drivers/Peripheral/XMEGA/SPI_XMEGA.h +++ /dev/null @@ -1,248 +0,0 @@ -/*
- LUFA Library
- Copyright (C) Dean Camera, 2012.
-
- dean [at] fourwalledcubicle [dot] com
- www.lufa-lib.org
-*/
-
-/*
- Copyright 2012 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 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.
-*/
-
-/** \file
- * \brief SPI Peripheral Driver (XMEGA)
- *
- * On-chip SPI driver for the XMEGA microcontrollers.
- *
- * \note This file should not be included directly. It is automatically included as needed by the SPI driver
- * dispatch header located in LUFA/Drivers/Peripheral/SPI.h.
- */
-
-/** \ingroup Group_SPI
- * \defgroup Group_SPI_XMEGA SPI Peripheral Driver (XMEGA)
- *
- * \section Sec_ModDescription Module Description
- * Driver for the hardware SPI port(s) available on XMEGA AVR microcontroller models. This
- * module provides an easy to use driver for the setup and transfer of data over the AVR's
- * SPI ports.
- *
- * \note This file should not be included directly. It is automatically included as needed by the SPI driver
- * dispatch header located in LUFA/Drivers/Peripheral/SPI.h.
- *
- * \code
- * // Initialize the SPI driver before first use
- * SPI_Init(&SPIC,
- * SPI_SPEED_FCPU_DIV_2 | SPI_ORDER_MSB_FIRST | SPI_SCK_LEAD_FALLING |
- * SPI_SAMPLE_TRAILING | SPI_MODE_MASTER);
- *
- * // Send several bytes, ignoring the returned data
- * SPI_SendByte(&SPIC, 0x01);
- * SPI_SendByte(&SPIC, 0x02);
- * SPI_SendByte(&SPIC, 0x03);
- *
- * // Receive several bytes, sending a dummy 0x00 byte each time
- * uint8_t Byte1 = SPI_ReceiveByte(&SPIC);
- * uint8_t Byte2 = SPI_ReceiveByte(&SPIC);
- * uint8_t Byte3 = SPI_ReceiveByte(&SPIC);
- *
- * // Send a byte, and store the received byte from the same transaction
- * uint8_t ResponseByte = SPI_TransferByte(&SPIC, 0xDC);
- * \endcode
- *
- * @{
- */
-
-#ifndef __SPI_XMEGA_H__
-#define __SPI_XMEGA_H__
-
- /* Includes: */
- #include "../../../Common/Common.h"
-
- /* Enable C linkage for C++ Compilers: */
- #if defined(__cplusplus)
- extern "C" {
- #endif
-
- /* Preprocessor Checks: */
- #if !defined(__INCLUDE_FROM_SPI_H)
- #error Do not include this file directly. Include LUFA/Drivers/Peripheral/SPI.h instead.
- #endif
-
- /* Private Interface - For use in library only: */
- #if !defined(__DOXYGEN__)
- /* Macros: */
- #define SPI_USE_DOUBLESPEED SPI_CLK2X_bm
- #endif
-
- /* Public Interface - May be used in end-application: */
- /* Macros: */
- /** \name SPI Prescaler Configuration Masks */
- //@{
- /** SPI prescaler mask for \ref SPI_Init(). Divides the system clock by a factor of 2. */
- #define SPI_SPEED_FCPU_DIV_2 SPI_USE_DOUBLESPEED
-
- /** SPI prescaler mask for \ref SPI_Init(). Divides the system clock by a factor of 4. */
- #define SPI_SPEED_FCPU_DIV_4 0
-
- /** SPI prescaler mask for \ref SPI_Init(). Divides the system clock by a factor of 8. */
- #define SPI_SPEED_FCPU_DIV_8 (SPI_USE_DOUBLESPEED | (1 << SPI_PRESCALER_gp))
-
- /** SPI prescaler mask for \ref SPI_Init(). Divides the system clock by a factor of 16. */
- #define SPI_SPEED_FCPU_DIV_16 (1 << SPI_PRESCALER_gp)
-
- /** SPI prescaler mask for \ref SPI_Init(). Divides the system clock by a factor of 32. */
- #define SPI_SPEED_FCPU_DIV_32 (SPI_USE_DOUBLESPEED | (2 << SPI_PRESCALER_gp))
-
- /** SPI prescaler mask for \ref SPI_Init(). Divides the system clock by a factor of 64. */
- #define SPI_SPEED_FCPU_DIV_64 (2 << SPI_PRESCALER_gp)
-
- /** SPI prescaler mask for \ref SPI_Init(). Divides the system clock by a factor of 128. */
- #define SPI_SPEED_FCPU_DIV_128 (3 << SPI_PRESCALER_gp)
- //@}
-
- /** \name SPI SCK Polarity Configuration Masks */
- //@{
- /** SPI clock polarity mask for \ref SPI_Init(). Indicates that the SCK should lead on the rising edge. */
- #define SPI_SCK_LEAD_RISING 0
-
- /** SPI clock polarity mask for \ref SPI_Init(). Indicates that the SCK should lead on the falling edge. */
- #define SPI_SCK_LEAD_FALLING SPI_MODE1_bm
- //@}
-
- /** \name SPI Sample Edge Configuration Masks */
- //@{
- /** SPI data sample mode mask for \ref SPI_Init(). Indicates that the data should sampled on the leading edge. */
- #define SPI_SAMPLE_LEADING 0
-
- /** SPI data sample mode mask for \ref SPI_Init(). Indicates that the data should be sampled on the trailing edge. */
- #define SPI_SAMPLE_TRAILING SPI_MODE0_bm
- //@}
-
- /** \name SPI Data Ordering Configuration Masks */
- //@{
- /** SPI data order mask for \ref SPI_Init(). Indicates that data should be shifted out MSB first. */
- #define SPI_ORDER_MSB_FIRST 0
-
- /** SPI data order mask for \ref SPI_Init(). Indicates that data should be shifted out LSB first. */
- #define SPI_ORDER_LSB_FIRST SPI_DORD_bm
- //@}
-
- /** \name SPI Mode Configuration Masks */
- //@{
- /** SPI mode mask for \ref SPI_Init(). Indicates that the SPI interface should be initialized into slave mode. */
- #define SPI_MODE_SLAVE 0
-
- /** SPI mode mask for \ref SPI_Init(). Indicates that the SPI interface should be initialized into master mode. */
- #define SPI_MODE_MASTER SPI_MASTER_bm
- //@}
-
- /* Inline Functions: */
- /** Initializes the SPI subsystem, ready for transfers. Must be called before calling any other
- * SPI routines.
- *
- * \param[in,out] SPI Pointer to the base of the SPI peripheral within the device.
- * \param[in] SPIOptions SPI Options, a mask consisting of one of each of the \c SPI_SPEED_*,
- * \c SPI_SCK_*, \c SPI_SAMPLE_*, \c SPI_ORDER_* and \c SPI_MODE_* masks.
- */
- static inline void SPI_Init(SPI_t* const SPI,
- const uint8_t SPIOptions)
- {
- SPI->CTRL = (SPIOptions | SPI_ENABLE_bm);
- }
-
- /** Turns off the SPI driver, disabling and returning used hardware to their default configuration.
- *
- * \param[in,out] SPI Pointer to the base of the SPI peripheral within the device.
- */
- static inline void SPI_Disable(SPI_t* const SPI)
- {
- SPI->CTRL &= ~SPI_ENABLE_bm;
- }
-
- /** Retrieves the currently selected SPI mode, once the SPI interface has been configured.
- *
- * \param[in,out] SPI Pointer to the base of the SPI peripheral within the device.
- *
- * \return \ref SPI_MODE_MASTER if the interface is currently in SPI Master mode, \ref SPI_MODE_SLAVE otherwise
- */
- static inline uint8_t SPI_GetCurrentMode(SPI_t* const SPI) ATTR_ALWAYS_INLINE;
- static inline uint8_t SPI_GetCurrentMode(SPI_t* const SPI)
- {
- return (SPI->CTRL & SPI_MASTER_bm);
- }
-
- /** Sends and receives a byte through the SPI interface, blocking until the transfer is complete.
- *
- * \param[in,out] SPI Pointer to the base of the SPI peripheral within the device.
- * \param[in] Byte Byte to send through the SPI interface.
- *
- * \return Response byte from the attached SPI device.
- */
- static inline uint8_t SPI_TransferByte(SPI_t* const SPI,
- const uint8_t Byte) ATTR_ALWAYS_INLINE;
- static inline uint8_t SPI_TransferByte(SPI_t* const SPI,
- const uint8_t Byte)
- {
- SPI->DATA = Byte;
- while (!(SPI->STATUS & SPI_IF_bm));
- return SPI->DATA;
- }
-
- /** Sends a byte through the SPI interface, blocking until the transfer is complete. The response
- * byte sent to from the attached SPI device is ignored.
- *
- * \param[in,out] SPI Pointer to the base of the SPI peripheral within the device.
- * \param[in] Byte Byte to send through the SPI interface.
- */
- static inline void SPI_SendByte(SPI_t* const SPI,
- const uint8_t Byte) ATTR_ALWAYS_INLINE;
- static inline void SPI_SendByte(SPI_t* const SPI,
- const uint8_t Byte)
- {
- SPI->DATA = Byte;
- while (!(SPI->STATUS & SPI_IF_bm));
- }
-
- /** Sends a dummy byte through the SPI interface, blocking until the transfer is complete. The response
- * byte from the attached SPI device is returned.
- *
- * \param[in,out] SPI Pointer to the base of the SPI peripheral within the device.
- *
- * \return The response byte from the attached SPI device.
- */
- static inline uint8_t SPI_ReceiveByte(SPI_t* const SPI) ATTR_ALWAYS_INLINE ATTR_WARN_UNUSED_RESULT;
- static inline uint8_t SPI_ReceiveByte(SPI_t* const SPI)
- {
- SPI->DATA = 0;
- while (!(SPI->STATUS & SPI_IF_bm));
- return SPI->DATA;
- }
-
- /* Disable C linkage for C++ Compilers: */
- #if defined(__cplusplus)
- }
- #endif
-
-#endif
-
-/** @} */
-
diff --git a/protocol/lufa/LUFA-120730/LUFA/Drivers/Peripheral/XMEGA/SerialSPI_XMEGA.h b/protocol/lufa/LUFA-120730/LUFA/Drivers/Peripheral/XMEGA/SerialSPI_XMEGA.h deleted file mode 100644 index 6d0ea1115..000000000 --- a/protocol/lufa/LUFA-120730/LUFA/Drivers/Peripheral/XMEGA/SerialSPI_XMEGA.h +++ /dev/null @@ -1,203 +0,0 @@ -/*
- LUFA Library
- Copyright (C) Dean Camera, 2012.
-
- dean [at] fourwalledcubicle [dot] com
- www.lufa-lib.org
-*/
-
-/*
- Copyright 2012 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 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.
-*/
-
-/** \file
- * \brief Master SPI Mode Serial USART Peripheral Driver (XMEGA)
- *
- * On-chip Master SPI mode USART driver for the XMEGA AVR microcontrollers.
- *
- * \note This file should not be included directly. It is automatically included as needed by the SPI Master
- * Mode USART driver dispatch header located in LUFA/Drivers/Peripheral/Serial.h.
- */
-
-/** \ingroup Group_SerialSPI
- * \defgroup Group_SerialSPI_XMEGA Master SPI Mode Serial USART Peripheral Driver (XMEGA)
- *
- * \section Sec_ModDescription Module Description
- * On-chip serial USART driver for the XMEGA AVR microcontrollers.
- *
- * \note This file should not be included directly. It is automatically included as needed by the ADC driver
- * dispatch header located in LUFA/Drivers/Peripheral/SerialSPI.h.
- *
- * \section Sec_ExampleUsage Example Usage
- * The following snippet is an example of how this module may be used within a typical
- * application.
- *
- * \code
- * // Initialize the Master SPI mode USART driver before first use, with 1Mbit baud
- * SerialSPI_Init(&USARTD0, (USART_SPI_SCK_LEAD_RISING | USART_SPI_SAMPLE_LEADING | USART_SPI_ORDER_MSB_FIRST), 1000000);
- *
- * // Send several bytes, ignoring the returned data
- * SerialSPI_SendByte(&USARTD0, 0x01);
- * SerialSPI_SendByte(&USARTD0, 0x02);
- * SerialSPI_SendByte(&USARTD0, 0x03);
- *
- * // Receive several bytes, sending a dummy 0x00 byte each time
- * uint8_t Byte1 = SerialSPI_ReceiveByte(&USARTD);
- * uint8_t Byte2 = SerialSPI_ReceiveByte(&USARTD);
- * uint8_t Byte3 = SerialSPI_ReceiveByte(&USARTD);
- *
- * // Send a byte, and store the received byte from the same transaction
- * uint8_t ResponseByte = SerialSPI_TransferByte(&USARTD0, 0xDC);
- * \endcode
- *
- * @{
- */
-
-#ifndef __SERIAL_SPI_XMEGA_H__
-#define __SERIAL_SPI_XMEGA_H__
-
- /* Includes: */
- #include "../../../Common/Common.h"
-
- #include <stdio.h>
-
- /* Enable C linkage for C++ Compilers: */
- #if defined(__cplusplus)
- extern "C" {
- #endif
-
- /* Preprocessor Checks: */
- #if !defined(__INCLUDE_FROM_SERIAL_SPI_H)
- #error Do not include this file directly. Include LUFA/Drivers/Peripheral/Serial.h instead.
- #endif
-
- /* Private Interface - For use in library only: */
- #if !defined(__DOXYGEN__)
- #define SERIAL_SPI_UBBRVAL(Baud) ((Baud < (F_CPU / 2)) ? ((F_CPU / (2 * Baud)) - 1) : 0)
- #endif
-
- /* Public Interface - May be used in end-application: */
- /* Macros: */
- /** \name SPI SCK Polarity Configuration Masks */
- //@{
- /** SPI clock polarity mask for \ref SerialSPI_Init(). Indicates that the SCK should lead on the rising edge. */
- #define USART_SPI_SCK_LEAD_RISING 0
- //@}
-
- /** \name SPI Sample Edge Configuration Masks */
- //@{
- /** SPI data sample mode mask for \ref SerialSPI_Init(). Indicates that the data should sampled on the leading edge. */
- #define USART_SPI_SAMPLE_LEADING 0
-
- /** SPI data sample mode mask for \ref SerialSPI_Init(). Indicates that the data should be sampled on the trailing edge. */
- #define USART_SPI_SAMPLE_TRAILING USART_UPCHA_bm
- //@}
-
- /** \name SPI Data Ordering Configuration Masks */
- //@{
- /** SPI data order mask for \ref SerialSPI_Init(). Indicates that data should be shifted out MSB first. */
- #define USART_SPI_ORDER_MSB_FIRST 0
-
- /** SPI data order mask for \ref SerialSPI_Init(). Indicates that data should be shifted out LSB first. */
- #define USART_SPI_ORDER_LSB_FIRST USART_UDORD_bm
- //@}
-
- /* Inline Functions: */
- /** Initialize the USART module in Master SPI mode.
- *
- * \param[in,out] USART Pointer to the base of the USART peripheral within the device.
- * \param[in] SPIOptions USART SPI Options, a mask consisting of one of each of the \c USART_SPI_SCK_*,
- * \c USART_SPI_SAMPLE_* and \c USART_SPI_ORDER_* masks.
- * \param[in] BaudRate SPI baud rate, in bits per second.
- */
- static inline void SerialSPI_Init(USART_t* const USART,
- const uint8_t SPIOptions,
- const uint32_t BaudRate)
- {
- uint16_t BaudValue = SERIAL_SPI_UBBRVAL(BaudRate);
-
- USART->BAUDCTRLB = (BaudValue >> 8);
- USART->BAUDCTRLA = (BaudValue & 0xFF);
-
- USART->CTRLC = (USART_CMODE_MSPI_gc | SPIOptions);
- USART->CTRLB = (USART_RXEN_bm | USART_TXEN_bm);
- }
-
- /** Turns off the USART driver, disabling and returning used hardware to their default configuration.
- *
- * \param[in,out] USART Pointer to the base of the USART peripheral within the device.
- */
- static inline void SerialSPI_Disable(USART_t* const USART)
- {
- USART->CTRLA = 0;
- USART->CTRLB = 0;
- USART->CTRLC = 0;
- }
-
- /** Sends and receives a byte through the USART SPI interface, blocking until the transfer is complete.
- *
- * \param[in,out] USART Pointer to the base of the USART peripheral within the device.
- * \param[in] DataByte Byte to send through the USART SPI interface.
- *
- * \return Response byte from the attached SPI device.
- */
- static inline uint8_t SerialSPI_TransferByte(USART_t* const USART,
- const uint8_t DataByte)
- {
- USART->DATA = DataByte;
- while (!(USART->STATUS & USART_TXCIF_bm));
- USART->STATUS = USART_TXCIF_bm;
- return USART->DATA;
- }
-
- /** Sends a byte through the USART SPI interface, blocking until the transfer is complete. The response
- * byte sent to from the attached SPI device is ignored.
- *
- * \param[in,out] USART Pointer to the base of the USART peripheral within the device.
- * \param[in] DataByte Byte to send through the USART SPI interface.
- */
- static inline void SerialSPI_SendByte(USART_t* const USART,
- const uint8_t DataByte)
- {
- SerialSPI_TransferByte(USART, DataByte);
- }
-
- /** Sends a dummy byte through the USART SPI interface, blocking until the transfer is complete. The response
- * byte from the attached SPI device is returned.
- *
- * \param[in,out] USART Pointer to the base of the USART peripheral within the device.
- *
- * \return The response byte from the attached SPI device.
- */
- static inline uint8_t SerialSPI_ReceiveByte(USART_t* const USART)
- {
- return SerialSPI_TransferByte(USART, 0);
- }
-
- /* Disable C linkage for C++ Compilers: */
- #if defined(__cplusplus)
- }
- #endif
-
-#endif
-
-/** @} */
-
diff --git a/protocol/lufa/LUFA-120730/LUFA/Drivers/Peripheral/XMEGA/Serial_XMEGA.c b/protocol/lufa/LUFA-120730/LUFA/Drivers/Peripheral/XMEGA/Serial_XMEGA.c deleted file mode 100644 index 51a4d049e..000000000 --- a/protocol/lufa/LUFA-120730/LUFA/Drivers/Peripheral/XMEGA/Serial_XMEGA.c +++ /dev/null @@ -1,122 +0,0 @@ -/*
- LUFA Library
- Copyright (C) Dean Camera, 2012.
-
- dean [at] fourwalledcubicle [dot] com
- www.lufa-lib.org
-*/
-
-/*
- Copyright 2012 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 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.
-*/
-
-#include "../../../Common/Common.h"
-#if (ARCH == ARCH_XMEGA)
-
-#define __INCLUDE_FROM_SERIAL_C
-#include "../Serial.h"
-
-FILE USARTSerialStream;
-
-int Serial_putchar(char DataByte,
- FILE *Stream)
-{
- USART_t* USART = fdev_get_udata(Stream);
-
- Serial_SendByte(USART, DataByte);
- return 0;
-}
-
-int Serial_getchar(FILE *Stream)
-{
- USART_t* USART = fdev_get_udata(Stream);
-
- if (!(Serial_IsCharReceived(USART)))
- return _FDEV_EOF;
-
- return Serial_ReceiveByte(USART);
-}
-
-int Serial_getchar_Blocking(FILE *Stream)
-{
- USART_t* USART = fdev_get_udata(Stream);
-
- while (!(Serial_IsCharReceived(USART)));
- return Serial_ReceiveByte(USART);
-}
-
-void Serial_SendString_P(USART_t* const USART,
- const char* FlashStringPtr)
-{
- uint8_t CurrByte;
-
- while ((CurrByte = pgm_read_byte(FlashStringPtr)) != 0x00)
- {
- Serial_SendByte(USART, CurrByte);
- FlashStringPtr++;
- }
-}
-
-void Serial_SendString(USART_t* const USART,
- const char* StringPtr)
-{
- uint8_t CurrByte;
-
- while ((CurrByte = *StringPtr) != 0x00)
- {
- Serial_SendByte(USART, CurrByte);
- StringPtr++;
- }
-}
-
-void Serial_SendData(USART_t* const USART,
- const uint8_t* Buffer,
- uint16_t Length)
-{
- while (Length--)
- Serial_SendByte(USART, *(Buffer++));
-}
-
-void Serial_CreateStream(FILE* Stream)
-{
- if (!(Stream))
- {
- Stream = &USARTSerialStream;
- stdin = Stream;
- stdout = Stream;
- }
-
- *Stream = (FILE)FDEV_SETUP_STREAM(Serial_putchar, Serial_getchar, _FDEV_SETUP_RW);
-}
-
-void Serial_CreateBlockingStream(FILE* Stream)
-{
- if (!(Stream))
- {
- Stream = &USARTSerialStream;
- stdin = Stream;
- stdout = Stream;
- }
-
- *Stream = (FILE)FDEV_SETUP_STREAM(Serial_putchar, Serial_getchar_Blocking, _FDEV_SETUP_RW);
-}
-
-#endif
diff --git a/protocol/lufa/LUFA-120730/LUFA/Drivers/Peripheral/XMEGA/Serial_XMEGA.h b/protocol/lufa/LUFA-120730/LUFA/Drivers/Peripheral/XMEGA/Serial_XMEGA.h deleted file mode 100644 index 35b60d150..000000000 --- a/protocol/lufa/LUFA-120730/LUFA/Drivers/Peripheral/XMEGA/Serial_XMEGA.h +++ /dev/null @@ -1,252 +0,0 @@ -/*
- LUFA Library
- Copyright (C) Dean Camera, 2012.
-
- dean [at] fourwalledcubicle [dot] com
- www.lufa-lib.org
-*/
-
-/*
- Copyright 2012 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 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.
-*/
-
-/** \file
- * \brief Serial USART Peripheral Driver (XMEGA)
- *
- * On-chip serial USART driver for the XMEGA AVR microcontrollers.
- *
- * \note This file should not be included directly. It is automatically included as needed by the USART driver
- * dispatch header located in LUFA/Drivers/Peripheral/Serial.h.
- */
-
-/** \ingroup Group_Serial
- * \defgroup Group_Serial_XMEGA Serial USART Peripheral Driver (XMEGA)
- *
- * \section Sec_ModDescription Module Description
- * On-chip serial USART driver for the XMEGA AVR microcontrollers.
- *
- * \note This file should not be included directly. It is automatically included as needed by the USART driver
- * dispatch header located in LUFA/Drivers/Peripheral/Serial.h.
- *
- * \section Sec_ExampleUsage Example Usage
- * The following snippet is an example of how this module may be used within a typical
- * application.
- *
- * \code
- * // Initialize the serial USART driver before first use, with 9600 baud (and no double-speed mode)
- * Serial_Init(&USARTD0, 9600, false);
- *
- * // Send a string through the USART
- * Serial_TxString(&USARTD0, "Test String\r\n");
- *
- * // Receive a byte through the USART
- * uint8_t DataByte = Serial_RxByte(&USARTD0);
- * \endcode
- *
- * @{
- */
-
-#ifndef __SERIAL_XMEGA_H__
-#define __SERIAL_XMEGA_H__
-
- /* Includes: */
- #include "../../../Common/Common.h"
- #include "../../Misc/TerminalCodes.h"
-
- #include <stdio.h>
-
- /* Enable C linkage for C++ Compilers: */
- #if defined(__cplusplus)
- extern "C" {
- #endif
-
- /* Preprocessor Checks: */
- #if !defined(__INCLUDE_FROM_SERIAL_H) && !defined(__INCLUDE_FROM_SERIAL_C)
- #error Do not include this file directly. Include LUFA/Drivers/Peripheral/Serial.h instead.
- #endif
-
- /* Private Interface - For use in library only: */
- #if !defined(__DOXYGEN__)
- /* External Variables: */
- extern FILE USARTSerialStream;
-
- /* Function Prototypes: */
- int Serial_putchar(char DataByte,
- FILE *Stream);
- int Serial_getchar(FILE *Stream);
- int Serial_getchar_Blocking(FILE *Stream);
- #endif
-
- /* Public Interface - May be used in end-application: */
- /* Macros: */
- /** Macro for calculating the baud value from a given baud rate when the \c U2X (double speed) bit is
- * not set.
- *
- * \param[in] Baud Target serial UART baud rate.
- *
- * \return Closest UBRR register value for the given UART frequency.
- */
- #define SERIAL_UBBRVAL(Baud) ((((F_CPU / 16) + (Baud / 2)) / (Baud)) - 1)
-
- /** Macro for calculating the baud value from a given baud rate when the \c U2X (double speed) bit is
- * set.
- *
- * \param[in] Baud Target serial UART baud rate.
- *
- * \return Closest UBRR register value for the given UART frequency.
- */
- #define SERIAL_2X_UBBRVAL(Baud) ((((F_CPU / 8) + (Baud / 2)) / (Baud)) - 1)
-
- /* Function Prototypes: */
- /** Transmits a given string located in program space (FLASH) through the USART.
- *
- * \param[in,out] USART Pointer to the base of the USART peripheral within the device.
- * \param[in] FlashStringPtr Pointer to a string located in program space.
- */
- void Serial_SendString_P(USART_t* const USART,
- const char* FlashStringPtr) ATTR_NON_NULL_PTR_ARG(1);
-
- /** Transmits a given string located in SRAM memory through the USART.
- *
- * \param[in,out] USART Pointer to the base of the USART peripheral within the device.
- * \param[in] StringPtr Pointer to a string located in SRAM space.
- */
- void Serial_SendString(USART_t* const USART,
- const char* StringPtr) ATTR_NON_NULL_PTR_ARG(1);
-
- /** Transmits a given buffer located in SRAM memory through the USART.
- *
- * \param[in,out] USART Pointer to the base of the USART peripheral within the device.
- * \param[in] Buffer Pointer to a buffer containing the data to send.
- * \param[in] Length Length of the data to send, in bytes.
- */
- void Serial_SendData(USART_t* const USART,
- const uint8_t* Buffer, uint16_t Length) ATTR_NON_NULL_PTR_ARG(1);
-
- /** Creates a standard character stream from the USART so that it can be used with all the regular functions
- * in the avr-libc \c <stdio.h> library that accept a \c FILE stream as a destination (e.g. \c fprintf). The created
- * stream is bidirectional and can be used for both input and output functions.
- *
- * Reading data from this stream is non-blocking, i.e. in most instances, complete strings cannot be read in by a single
- * fetch, as the endpoint will not be ready at some point in the transmission, aborting the transfer. However, this may
- * be used when the read data is processed byte-per-bye (via \c getc()) or when the user application will implement its own
- * line buffering.
- *
- * \param[in,out] Stream Pointer to a FILE structure where the created stream should be placed, if \c NULL, \c stdout
- * and \c stdin will be configured to use the USART.
- *
- * \pre The USART must first be configured via a call to \ref Serial_Init() before the stream is used.
- */
- void Serial_CreateStream(FILE* Stream);
-
- /** Identical to \ref Serial_CreateStream(), except that reads are blocking until the calling stream function terminates
- * the transfer.
- *
- * \param[in,out] Stream Pointer to a FILE structure where the created stream should be placed, if \c NULL, \c stdout
- * and \c stdin will be configured to use the USART.
- *
- * \pre The USART must first be configured via a call to \ref Serial_Init() before the stream is used.
- */
- void Serial_CreateBlockingStream(FILE* Stream);
-
- /* Inline Functions: */
- /** Initializes the USART, ready for serial data transmission and reception. This initializes the interface to
- * standard 8-bit, no parity, 1 stop bit settings suitable for most applications.
- *
- * \param[in,out] USART Pointer to the base of the USART peripheral within the device.
- * \param[in] BaudRate Serial baud rate, in bits per second.
- * \param[in] DoubleSpeed Enables double speed mode when set, halving the sample time to double the baud rate.
- */
- static inline void Serial_Init(USART_t* const USART,
- const uint32_t BaudRate,
- const bool DoubleSpeed)
- {
- uint16_t BaudValue = (DoubleSpeed ? SERIAL_2X_UBBRVAL(BaudRate) : SERIAL_UBBRVAL(BaudRate));
-
- USART->BAUDCTRLB = (BaudValue >> 8);
- USART->BAUDCTRLA = (BaudValue & 0xFF);
-
- USART->CTRLC = (USART_CMODE_ASYNCHRONOUS_gc | USART_PMODE_DISABLED_gc | USART_CHSIZE_8BIT_gc);
- USART->CTRLB = (USART_RXEN_bm | USART_TXEN_bm | (DoubleSpeed ? USART_CLK2X_bm : 0));
- }
-
- /** Turns off the USART driver, disabling and returning used hardware to their default configuration.
- *
- * \param[in,out] USART Pointer to the base of the USART peripheral within the device.
- */
- static inline void Serial_Disable(USART_t* const USART)
- {
- USART->CTRLA = 0;
- USART->CTRLB = 0;
- USART->CTRLC = 0;
- }
-
- /** Indicates whether a character has been received through the USART.
- *
- * \param[in,out] USART Pointer to the base of the USART peripheral within the device.
- *
- * \return Boolean \c true if a character has been received, \c false otherwise.
- */
- static inline bool Serial_IsCharReceived(USART_t* const USART) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
- static inline bool Serial_IsCharReceived(USART_t* const USART)
- {
- return ((USART->STATUS & USART_RXCIF_bm) ? true : false);
- }
-
- /** Transmits a given byte through the USART.
- *
- * \param[in,out] USART Pointer to the base of the USART peripheral within the device.
- * \param[in] DataByte Byte to transmit through the USART.
- */
- static inline void Serial_SendByte(USART_t* const USART,
- const char DataByte) ATTR_ALWAYS_INLINE;
- static inline void Serial_SendByte(USART_t* const USART,
- const char DataByte)
- {
- while (!(USART->STATUS & USART_DREIF_bm));
- USART->DATA = DataByte;
- }
-
- /** Receives the next byte from the USART.
- *
- * \param[in,out] USART Pointer to the base of the USART peripheral within the device.
- *
- * \return Next byte received from the USART, or a negative value if no byte has been received.
- */
- static inline int16_t Serial_ReceiveByte(USART_t* const USART) ATTR_ALWAYS_INLINE;
- static inline int16_t Serial_ReceiveByte(USART_t* const USART)
- {
- if (!(Serial_IsCharReceived(USART)))
- return -1;
-
- USART->STATUS = USART_RXCIF_bm;
- return USART->DATA;
- }
-
- /* Disable C linkage for C++ Compilers: */
- #if defined(__cplusplus)
- }
- #endif
-
-#endif
-
-/** @} */
-
|