diff options
Diffstat (limited to 'tmk_core/protocol/lufa/LUFA-git/LUFA/Drivers/Peripheral/XMEGA')
6 files changed, 0 insertions, 1358 deletions
diff --git a/tmk_core/protocol/lufa/LUFA-git/LUFA/Drivers/Peripheral/XMEGA/SPI_XMEGA.h b/tmk_core/protocol/lufa/LUFA-git/LUFA/Drivers/Peripheral/XMEGA/SPI_XMEGA.h deleted file mode 100644 index c6230481e..000000000 --- a/tmk_core/protocol/lufa/LUFA-git/LUFA/Drivers/Peripheral/XMEGA/SPI_XMEGA.h +++ /dev/null @@ -1,251 +0,0 @@ -/* - LUFA Library - Copyright (C) Dean Camera, 2014. - - dean [at] fourwalledcubicle [dot] com - www.lufa-lib.org -*/ - -/* - Copyright 2014 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 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_SPI_XMEGA_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) ATTR_NON_NULL_PTR_ARG(1); - 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) ATTR_NON_NULL_PTR_ARG(1); - 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 ATTR_NON_NULL_PTR_ARG(1); - 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 ATTR_NON_NULL_PTR_ARG(1); - 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 ATTR_NON_NULL_PTR_ARG(1); - 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 ATTR_NON_NULL_PTR_ARG(1); - 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/tmk_core/protocol/lufa/LUFA-git/LUFA/Drivers/Peripheral/XMEGA/SerialSPI_XMEGA.h b/tmk_core/protocol/lufa/LUFA-git/LUFA/Drivers/Peripheral/XMEGA/SerialSPI_XMEGA.h deleted file mode 100644 index a981ce6a6..000000000 --- a/tmk_core/protocol/lufa/LUFA-git/LUFA/Drivers/Peripheral/XMEGA/SerialSPI_XMEGA.h +++ /dev/null @@ -1,212 +0,0 @@ -/* - LUFA Library - Copyright (C) Dean Camera, 2014. - - dean [at] fourwalledcubicle [dot] com - www.lufa-lib.org -*/ - -/* - Copyright 2014 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 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_SerialSPI_XMEGA_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_SerialSPI_XMEGA_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 (1 << 1) - //@} - - /** \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 (1 << 2) - //@} - - /* 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) ATTR_NON_NULL_PTR_ARG(1); - 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) ATTR_ALWAYS_INLINE ATTR_NON_NULL_PTR_ARG(1); - 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) ATTR_ALWAYS_INLINE ATTR_NON_NULL_PTR_ARG(1); - 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) ATTR_ALWAYS_INLINE ATTR_NON_NULL_PTR_ARG(1); - 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) ATTR_ALWAYS_INLINE ATTR_WARN_UNUSED_RESULT ATTR_NON_NULL_PTR_ARG(1); - 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/tmk_core/protocol/lufa/LUFA-git/LUFA/Drivers/Peripheral/XMEGA/Serial_XMEGA.c b/tmk_core/protocol/lufa/LUFA-git/LUFA/Drivers/Peripheral/XMEGA/Serial_XMEGA.c deleted file mode 100644 index 4e2935730..000000000 --- a/tmk_core/protocol/lufa/LUFA-git/LUFA/Drivers/Peripheral/XMEGA/Serial_XMEGA.c +++ /dev/null @@ -1,122 +0,0 @@ -/* - LUFA Library - Copyright (C) Dean Camera, 2014. - - dean [at] fourwalledcubicle [dot] com - www.lufa-lib.org -*/ - -/* - Copyright 2014 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. -*/ - -#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 void* Buffer, - uint16_t Length) -{ - while (Length--) - Serial_SendByte(USART, *((uint8_t*)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/tmk_core/protocol/lufa/LUFA-git/LUFA/Drivers/Peripheral/XMEGA/Serial_XMEGA.h b/tmk_core/protocol/lufa/LUFA-git/LUFA/Drivers/Peripheral/XMEGA/Serial_XMEGA.h deleted file mode 100644 index ad34c8535..000000000 --- a/tmk_core/protocol/lufa/LUFA-git/LUFA/Drivers/Peripheral/XMEGA/Serial_XMEGA.h +++ /dev/null @@ -1,286 +0,0 @@ -/* - LUFA Library - Copyright (C) Dean Camera, 2014. - - dean [at] fourwalledcubicle [dot] com - www.lufa-lib.org -*/ - -/* - Copyright 2014 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 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_Serial_XMEGA_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_Serial_XMEGA_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 void* 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) ATTR_NON_NULL_PTR_ARG(1); - 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) ATTR_ALWAYS_INLINE ATTR_NON_NULL_PTR_ARG(1); - 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_ALWAYS_INLINE ATTR_WARN_UNUSED_RESULT ATTR_NON_NULL_PTR_ARG(1); - static inline bool Serial_IsCharReceived(USART_t* const USART) - { - return ((USART->STATUS & USART_RXCIF_bm) ? true : false); - } - - /** Indicates whether there is hardware buffer space for a new transmit on the USART. This - * function can be used to determine if a call to \ref Serial_SendByte() will block in advance. - * - * \param[in,out] USART Pointer to the base of the USART peripheral within the device. - * - * \return Boolean \c true if a character can be queued for transmission immediately, \c false otherwise. - */ - static inline bool Serial_IsSendReady(USART_t* const USART) ATTR_ALWAYS_INLINE ATTR_WARN_UNUSED_RESULT ATTR_NON_NULL_PTR_ARG(1); - static inline bool Serial_IsSendReady(USART_t* const USART) - { - return (USART->STATUS & USART_DREIF_bm) ? true : false; - } - - /** Indicates whether the hardware USART transmit buffer is completely empty, indicating all - * pending transmissions have completed. - * - * \param[in,out] USART Pointer to the base of the USART peripheral within the device. - * - * \return Boolean \c true if no characters are buffered for transmission, \c false otherwise. - */ - static inline bool Serial_IsSendComplete(USART_t* const USART) ATTR_ALWAYS_INLINE ATTR_WARN_UNUSED_RESULT ATTR_NON_NULL_PTR_ARG(1); - static inline bool Serial_IsSendComplete(USART_t* const USART) - { - return (USART->STATUS & USART_TXCIF_bm) ? true : false; - } - - /** Transmits a given byte through the USART. - * - * \note If no buffer space is available in the hardware USART, this function will block. To check if - * space is available before calling this function, see \ref Serial_IsSendReady(). - * - * \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 ATTR_NON_NULL_PTR_ARG(1); - static inline void Serial_SendByte(USART_t* const USART, - const char DataByte) - { - while (!(Serial_IsSendReady(USART))); - 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 ATTR_NON_NULL_PTR_ARG(1); - 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 - -/** @} */ - diff --git a/tmk_core/protocol/lufa/LUFA-git/LUFA/Drivers/Peripheral/XMEGA/TWI_XMEGA.c b/tmk_core/protocol/lufa/LUFA-git/LUFA/Drivers/Peripheral/XMEGA/TWI_XMEGA.c deleted file mode 100644 index 6f8ab1d4c..000000000 --- a/tmk_core/protocol/lufa/LUFA-git/LUFA/Drivers/Peripheral/XMEGA/TWI_XMEGA.c +++ /dev/null @@ -1,185 +0,0 @@ -/* - LUFA Library - Copyright (C) Dean Camera, 2014. - - dean [at] fourwalledcubicle [dot] com - www.lufa-lib.org -*/ - -/* - Copyright 2014 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. -*/ - -#include "../../../Common/Common.h" -#if (ARCH == ARCH_XMEGA) - -#define __INCLUDE_FROM_TWI_C -#include "../TWI.h" - -uint8_t TWI_StartTransmission(TWI_t* const TWI, - const uint8_t SlaveAddress, - const uint8_t TimeoutMS) -{ - uint16_t TimeoutRemaining; - - TWI->MASTER.ADDR = SlaveAddress; - - TimeoutRemaining = (TimeoutMS * 100); - while (TimeoutRemaining) - { - uint8_t status = TWI->MASTER.STATUS; - - if ((status & (TWI_MASTER_WIF_bm | TWI_MASTER_ARBLOST_bm)) == (TWI_MASTER_WIF_bm | TWI_MASTER_ARBLOST_bm)) - { - TWI->MASTER.ADDR = SlaveAddress; - } - else if ((status & (TWI_MASTER_WIF_bm | TWI_MASTER_RXACK_bm)) == (TWI_MASTER_WIF_bm | TWI_MASTER_RXACK_bm)) - { - TWI_StopTransmission(TWI); - return TWI_ERROR_SlaveResponseTimeout; - } - else if (status & (TWI_MASTER_WIF_bm | TWI_MASTER_RIF_bm)) - { - return TWI_ERROR_NoError; - } - - _delay_us(10); - TimeoutRemaining--; - } - - if (!(TimeoutRemaining)) { - if (TWI->MASTER.STATUS & TWI_MASTER_CLKHOLD_bm) { - TWI_StopTransmission(TWI); - } - } - - return TWI_ERROR_BusCaptureTimeout; -} - -bool TWI_SendByte(TWI_t* const TWI, - const uint8_t Byte) -{ - TWI->MASTER.DATA = Byte; - - while (!(TWI->MASTER.STATUS & TWI_MASTER_WIF_bm)); - - return (TWI->MASTER.STATUS & TWI_MASTER_WIF_bm) && !(TWI->MASTER.STATUS & TWI_MASTER_RXACK_bm); -} - -bool TWI_ReceiveByte(TWI_t* const TWI, - uint8_t* const Byte, - const bool LastByte) -{ - if ((TWI->MASTER.STATUS & (TWI_MASTER_BUSERR_bm | TWI_MASTER_ARBLOST_bm)) == (TWI_MASTER_BUSERR_bm | TWI_MASTER_ARBLOST_bm)) { - return false; - } - - while (!(TWI->MASTER.STATUS & TWI_MASTER_RIF_bm)); - - *Byte = TWI->MASTER.DATA; - - if (LastByte) - TWI->MASTER.CTRLC = TWI_MASTER_ACKACT_bm | TWI_MASTER_CMD_STOP_gc; - else - TWI->MASTER.CTRLC = TWI_MASTER_CMD_RECVTRANS_gc; - - return true; -} - -uint8_t TWI_ReadPacket(TWI_t* const TWI, - const uint8_t SlaveAddress, - const uint8_t TimeoutMS, - const uint8_t* InternalAddress, - uint8_t InternalAddressLen, - uint8_t* Buffer, - uint8_t Length) -{ - uint8_t ErrorCode; - - if ((ErrorCode = TWI_StartTransmission(TWI, (SlaveAddress & TWI_DEVICE_ADDRESS_MASK) | TWI_ADDRESS_WRITE, - TimeoutMS)) == TWI_ERROR_NoError) - { - while (InternalAddressLen--) - { - if (!(TWI_SendByte(TWI, *(InternalAddress++)))) - { - ErrorCode = TWI_ERROR_SlaveNAK; - break; - } - } - - if ((ErrorCode = TWI_StartTransmission(TWI, (SlaveAddress & TWI_DEVICE_ADDRESS_MASK) | TWI_ADDRESS_READ, - TimeoutMS)) == TWI_ERROR_NoError) - { - while (Length--) - { - if (!(TWI_ReceiveByte(TWI, Buffer++, (Length == 0)))) - { - ErrorCode = TWI_ERROR_SlaveNAK; - break; - } - } - } - - TWI_StopTransmission(TWI); - } - - return ErrorCode; -} - -uint8_t TWI_WritePacket(TWI_t* const TWI, - const uint8_t SlaveAddress, - const uint8_t TimeoutMS, - const uint8_t* InternalAddress, - uint8_t InternalAddressLen, - const uint8_t* Buffer, - uint8_t Length) -{ - uint8_t ErrorCode; - - if ((ErrorCode = TWI_StartTransmission(TWI, (SlaveAddress & TWI_DEVICE_ADDRESS_MASK) | TWI_ADDRESS_WRITE, - TimeoutMS)) == TWI_ERROR_NoError) - { - while (InternalAddressLen--) - { - if (!(TWI_SendByte(TWI, *(InternalAddress++)))) - { - ErrorCode = TWI_ERROR_SlaveNAK; - break; - } - } - - while (Length--) - { - if (!(TWI_SendByte(TWI, *(Buffer++)))) - { - ErrorCode = TWI_ERROR_SlaveNAK; - break; - } - } - - TWI_StopTransmission(TWI); - } - - return ErrorCode; -} - -#endif diff --git a/tmk_core/protocol/lufa/LUFA-git/LUFA/Drivers/Peripheral/XMEGA/TWI_XMEGA.h b/tmk_core/protocol/lufa/LUFA-git/LUFA/Drivers/Peripheral/XMEGA/TWI_XMEGA.h deleted file mode 100644 index 72437e5e1..000000000 --- a/tmk_core/protocol/lufa/LUFA-git/LUFA/Drivers/Peripheral/XMEGA/TWI_XMEGA.h +++ /dev/null @@ -1,302 +0,0 @@ -/* - LUFA Library - Copyright (C) Dean Camera, 2014. - - dean [at] fourwalledcubicle [dot] com - www.lufa-lib.org -*/ - -/* - Copyright 2014 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 TWI Peripheral Driver (XMEGA) - * - * On-chip TWI driver for the XMEGA Family of AVR microcontrollers. - * - * \note This file should not be included directly. It is automatically included as needed by the TWI driver - * dispatch header located in LUFA/Drivers/Peripheral/TWI.h. - */ - -/** \ingroup Group_TWI - * \defgroup Group_TWI_XMEGA TWI Peripheral Driver (XMEGA) - * - * \section Sec_TWI_XMEGA_ModDescription Module Description - * Master mode TWI driver for the 8-bit AVR microcontrollers which contain a hardware TWI module. - * - * \note This file should not be included directly. It is automatically included as needed by the TWI driver - * dispatch header located in LUFA/Drivers/Peripheral/TWI.h. - * - * \section Sec_TWI_XMEGA_ExampleUsage Example Usage - * The following snippet is an example of how this module may be used within a typical - * application. - * - * <b>Low Level API Example:</b> - * \code - * // Initialize the TWI driver before first use at 200KHz - * TWI_Init(&TWIC, TWI_BAUD_FROM_FREQ(200000)); - * - * // Start a write session to device at device address 0xA0, internal address 0xDC with a 10ms timeout - * if (TWI_StartTransmission(&TWIC, 0xA0 | TWI_ADDRESS_WRITE, 10) == TWI_ERROR_NoError) - * { - * TWI_SendByte(&TWIC, 0xDC); - * - * TWI_SendByte(&TWIC, 0x01); - * TWI_SendByte(&TWIC, 0x02); - * TWI_SendByte(&TWIC, 0x03); - * - * // Must stop transmission afterwards to release the bus - * TWI_StopTransmission(&TWIC); - * } - * - * // Start a read session to device at address 0xA0, internal address 0xDC with a 10ms timeout - * if (TWI_StartTransmission(&TWIC, 0xA0 | TWI_ADDRESS_WRITE, 10) == TWI_ERROR_NoError) - * { - * TWI_SendByte(&TWIC, 0xDC); - * TWI_StopTransmission(&TWIC); - * - * if (TWI_StartTransmission(&TWIC, 0xA0 | TWI_ADDRESS_READ, 10) == TWI_ERROR_NoError) - * { - * uint8_t Byte1, Byte2, Byte3; - * - * // Read three bytes, acknowledge after the third byte is received - * TWI_ReceiveByte(&TWIC, &Byte1, false); - * TWI_ReceiveByte(&TWIC, &Byte2, false); - * TWI_ReceiveByte(&TWIC, &Byte3, true); - * - * // Must stop transmission afterwards to release the bus - * TWI_StopTransmission(&TWIC); - * } - * } - * \endcode - * - * <b>High Level API Example:</b> - * \code - * // Initialize the TWI driver before first use at 200KHz - * TWI_Init(&TWIC, TWI_BAUD_FROM_FREQ(200000)); - * - * // Start a write session to device at device address 0xA0, internal address 0xDC with a 10ms timeout - * uint8_t InternalWriteAddress = 0xDC; - * uint8_t WritePacket[3] = {0x01, 0x02, 0x03}; - * - * TWI_WritePacket(&TWIC, 0xA0, 10, &InternalWriteAddress, sizeof(InternalWriteAddress), - * &WritePacket, sizeof(WritePacket); - * - * // Start a read session to device at address 0xA0, internal address 0xDC with a 10ms timeout - * uint8_t InternalReadAddress = 0xDC; - * uint8_t ReadPacket[3]; - * - * TWI_ReadPacket(&TWIC, 0xA0, 10, &InternalReadAddress, sizeof(InternalReadAddress), - * &ReadPacket, sizeof(ReadPacket); - * \endcode - * - * @{ - */ - -#ifndef __TWI_XMEGA_H__ -#define __TWI_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_TWI_H) && !defined(__INCLUDE_FROM_TWI_C) - #error Do not include this file directly. Include LUFA/Drivers/Peripheral/TWI.h instead. - #endif - - /* Public Interface - May be used in end-application: */ - /* Macros: */ - /** TWI slave device address mask for a read session. Mask with a slave device base address to obtain - * the correct TWI bus address for the slave device when reading data from it. - */ - #define TWI_ADDRESS_READ 0x01 - - /** TWI slave device address mask for a write session. Mask with a slave device base address to obtain - * the correct TWI bus address for the slave device when writing data to it. - */ - #define TWI_ADDRESS_WRITE 0x00 - - /** Mask to retrieve the base address for a TWI device, which can then be ORed with \ref TWI_ADDRESS_READ - * or \ref TWI_ADDRESS_WRITE to obtain the device's read and write address respectively. - */ - #define TWI_DEVICE_ADDRESS_MASK 0xFE - - /** Calculates the length of each bit on the TWI bus for a given target frequency. This may be used with - * the \ref TWI_Init() function to convert a bus frequency to a number of clocks for the \c BitLength - * parameter. - * - * \param[in] Frequency Desired TWI bus frequency in Hz. - * - * \return Bit length in clocks for the given TWI bus frequency at the given prescaler value. - */ - #define TWI_BAUD_FROM_FREQ(Frequency) ((F_CPU / (2 * Frequency)) - 5) - - /* Enums: */ - /** Enum for the possible return codes of the TWI transfer start routine and other dependant TWI functions. */ - enum TWI_ErrorCodes_t - { - TWI_ERROR_NoError = 0, /**< Indicates that the command completed successfully. */ - TWI_ERROR_BusFault = 1, /**< A TWI bus fault occurred while attempting to capture the bus. */ - TWI_ERROR_BusCaptureTimeout = 2, /**< A timeout occurred whilst waiting for the bus to be ready. */ - TWI_ERROR_SlaveResponseTimeout = 3, /**< No ACK received at the nominated slave address within the timeout period. */ - TWI_ERROR_SlaveNotReady = 4, /**< Slave NAKed the TWI bus START condition. */ - TWI_ERROR_SlaveNAK = 5, /**< Slave NAKed whilst attempting to send data to the device. */ - }; - - /* Inline Functions: */ - /** Initializes the TWI hardware into master mode, ready for data transmission and reception. This must be - * before any other TWI operations. - * - * The generated SCL frequency will be according to the formula <pre>F_CPU / (2 * (5 + (BAUD)))</pre>. - * - * \attention The value of the \c BitLength parameter should not be set below 10 or invalid bus conditions may - * occur, as indicated in the XMEGA microcontroller datasheet. - * - * \param[in] TWI Pointer to the base of the TWI peripheral within the device. - * \param[in] Baud Value of the BAUD register of the TWI Master. - */ - static inline void TWI_Init(TWI_t* const TWI, - const uint8_t Baud) ATTR_ALWAYS_INLINE ATTR_NON_NULL_PTR_ARG(1); - static inline void TWI_Init(TWI_t* const TWI, - const uint8_t Baud) - { - TWI->CTRL = 0x00; - TWI->MASTER.BAUD = Baud; - TWI->MASTER.CTRLA = TWI_MASTER_ENABLE_bm; - TWI->MASTER.CTRLB = 0; - TWI->MASTER.STATUS = TWI_MASTER_BUSSTATE_IDLE_gc; - } - - /** Turns off the TWI driver hardware. If this is called, any further TWI operations will require a call to - * \ref TWI_Init() before the TWI can be used again. - * - * \param[in] TWI Pointer to the base of the TWI peripheral within the device. - */ - static inline void TWI_Disable(TWI_t* const TWI) ATTR_ALWAYS_INLINE ATTR_NON_NULL_PTR_ARG(1); - static inline void TWI_Disable(TWI_t* const TWI) - { - TWI->MASTER.CTRLA &= ~TWI_MASTER_ENABLE_bm; - } - - /** Sends a TWI STOP onto the TWI bus, terminating communication with the currently addressed device. - * - * \param[in] TWI Pointer to the base of the TWI peripheral within the device. - */ - static inline void TWI_StopTransmission(TWI_t* const TWI) ATTR_ALWAYS_INLINE ATTR_NON_NULL_PTR_ARG(1); - static inline void TWI_StopTransmission(TWI_t* const TWI) - { - TWI->MASTER.CTRLC = TWI_MASTER_ACKACT_bm | TWI_MASTER_CMD_STOP_gc; - } - - /* Function Prototypes: */ - /** Begins a master mode TWI bus communication with the given slave device address. - * - * \param[in] TWI Pointer to the base of the TWI peripheral within the device. - * \param[in] SlaveAddress Address of the slave TWI device to communicate with. - * \param[in] TimeoutMS Timeout period within which the slave must respond, in milliseconds. - * - * \return A value from the \ref TWI_ErrorCodes_t enum. - */ - uint8_t TWI_StartTransmission(TWI_t* const TWI, - const uint8_t SlaveAddress, - const uint8_t TimeoutMS) ATTR_NON_NULL_PTR_ARG(1); - - /** Sends a byte to the currently addressed device on the TWI bus. - * - * \param[in] TWI Pointer to the base of the TWI peripheral within the device. - * \param[in] Byte Byte to send to the currently addressed device - * - * \return Boolean \c true if the recipient ACKed the byte, \c false otherwise - */ - bool TWI_SendByte(TWI_t* const TWI, - const uint8_t Byte) ATTR_NON_NULL_PTR_ARG(1); - - /** Receives a byte from the currently addressed device on the TWI bus. - * - * \param[in] TWI Pointer to the base of the TWI peripheral within the device. - * \param[in] Byte Location where the read byte is to be stored. - * \param[in] LastByte Indicates if the byte should be ACKed if false, NAKed if true. - * - * \return Boolean \c true if the byte reception successfully completed, \c false otherwise. - */ - bool TWI_ReceiveByte(TWI_t* const TWI, - uint8_t* const Byte, - const bool LastByte) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2); - - /** High level function to perform a complete packet transfer over the TWI bus to the specified - * device. - * - * \param[in] TWI Pointer to the base of the TWI peripheral within the device. - * \param[in] SlaveAddress Base address of the TWI slave device to communicate with. - * \param[in] TimeoutMS Timeout for bus capture and slave START ACK, in milliseconds. - * \param[in] InternalAddress Pointer to a location where the internal slave read start address is stored. - * \param[in] InternalAddressLen Size of the internal device address, in bytes. - * \param[in] Buffer Pointer to a buffer where the read packet data is to be stored. - * \param[in] Length Size of the packet to read, in bytes. - * - * \return A value from the \ref TWI_ErrorCodes_t enum. - */ - uint8_t TWI_ReadPacket(TWI_t* const TWI, - const uint8_t SlaveAddress, - const uint8_t TimeoutMS, - const uint8_t* InternalAddress, - uint8_t InternalAddressLen, - uint8_t* Buffer, - uint8_t Length) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(4); - - /** High level function to perform a complete packet transfer over the TWI bus from the specified - * device. - * - * \param[in] TWI Pointer to the base of the TWI peripheral within the device. - * \param[in] SlaveAddress Base address of the TWI slave device to communicate with - * \param[in] TimeoutMS Timeout for bus capture and slave START ACK, in milliseconds - * \param[in] InternalAddress Pointer to a location where the internal slave write start address is stored - * \param[in] InternalAddressLen Size of the internal device address, in bytes - * \param[in] Buffer Pointer to a buffer where the packet data to send is stored - * \param[in] Length Size of the packet to send, in bytes - * - * \return A value from the \ref TWI_ErrorCodes_t enum. - */ - uint8_t TWI_WritePacket(TWI_t* const TWI, - const uint8_t SlaveAddress, - const uint8_t TimeoutMS, - const uint8_t* InternalAddress, - uint8_t InternalAddressLen, - const uint8_t* Buffer, - uint8_t Length) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(4); - - /* Disable C linkage for C++ Compilers: */ - #if defined(__cplusplus) - } - #endif - -#endif - -/** @} */ - |