From 74298f8ca11dc8d3b0359d1d4e124d6494c3eeac Mon Sep 17 00:00:00 2001 From: Nicolas Schodet Date: Fri, 10 Apr 2009 01:15:42 +0200 Subject: * digital/avr/modules/usb: - imported LUFA. --- .../modules/usb/lufa/LUFA/Drivers/AT90USBXXX/ADC.h | 58 +++++++ .../LUFA/Drivers/AT90USBXXX/AT90USBXXX67/ADC.h | 177 +++++++++++++++++++++ .../modules/usb/lufa/LUFA/Drivers/AT90USBXXX/SPI.h | 139 ++++++++++++++++ .../usb/lufa/LUFA/Drivers/AT90USBXXX/Serial.c | 65 ++++++++ .../usb/lufa/LUFA/Drivers/AT90USBXXX/Serial.h | 115 +++++++++++++ .../lufa/LUFA/Drivers/AT90USBXXX/Serial_Stream.c | 45 ++++++ .../lufa/LUFA/Drivers/AT90USBXXX/Serial_Stream.h | 82 ++++++++++ 7 files changed, 681 insertions(+) create mode 100644 digital/avr/modules/usb/lufa/LUFA/Drivers/AT90USBXXX/ADC.h create mode 100644 digital/avr/modules/usb/lufa/LUFA/Drivers/AT90USBXXX/AT90USBXXX67/ADC.h create mode 100644 digital/avr/modules/usb/lufa/LUFA/Drivers/AT90USBXXX/SPI.h create mode 100644 digital/avr/modules/usb/lufa/LUFA/Drivers/AT90USBXXX/Serial.c create mode 100644 digital/avr/modules/usb/lufa/LUFA/Drivers/AT90USBXXX/Serial.h create mode 100644 digital/avr/modules/usb/lufa/LUFA/Drivers/AT90USBXXX/Serial_Stream.c create mode 100644 digital/avr/modules/usb/lufa/LUFA/Drivers/AT90USBXXX/Serial_Stream.h (limited to 'digital/avr/modules/usb/lufa/LUFA/Drivers/AT90USBXXX') diff --git a/digital/avr/modules/usb/lufa/LUFA/Drivers/AT90USBXXX/ADC.h b/digital/avr/modules/usb/lufa/LUFA/Drivers/AT90USBXXX/ADC.h new file mode 100644 index 00000000..341b4e19 --- /dev/null +++ b/digital/avr/modules/usb/lufa/LUFA/Drivers/AT90USBXXX/ADC.h @@ -0,0 +1,58 @@ +/* + LUFA Library + Copyright (C) Dean Camera, 2009. + + dean [at] fourwalledcubicle [dot] com + www.fourwalledcubicle.com +*/ + +/* + Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com) + + Permission to use, copy, modify, and distribute this software + and its documentation for any purpose and without fee is hereby + granted, provided that the above copyright notice appear in all + copies and that both that the copyright notice and this + permission notice and warranty disclaimer appear in supporting + documentation, and that the name of the author not be used in + advertising or publicity pertaining to distribution of the + software without specific, written prior permission. + + The author disclaim all warranties with regard to this + software, including all implied warranties of merchantability + and fitness. In no event shall the author be liable for any + special, indirect or consequential damages or any damages + whatsoever resulting from loss of use, data or profits, whether + in an action of contract, negligence or other tortious action, + arising out of or in connection with the use or performance of + this software. +*/ + +/** \file + * + * This file is the master dispatch header file for the device-specific ADC driver, for AVRs containing an ADC. + * + * User code should include this file, which will in turn include the correct ADC driver header file for the + * currently selected AVR model. + */ + +#ifndef __ADC_H__ +#define __ADC_H__ + + /* Macros: */ + #if !defined(__DOXYGEN__) + #define INCLUDE_FROM_ADC_H + #define INCLUDE_FROM_CHIP_DRIVER + #endif + + /* Includes: */ + #if (defined(__AVR_AT90USB1286__) || defined(__AVR_AT90USB646__) || \ + defined(__AVR_AT90USB1287__) || defined(__AVR_AT90USB647__) || \ + defined(__AVR_ATmega16U4__) || defined(__AVR_ATmega32U4__) || \ + defined(__AVR_ATmega32U6__)) + #include "AT90USBXXX67/ADC.h" + #else + #error "ADC is not available for the currently selected AVR model." + #endif + +#endif diff --git a/digital/avr/modules/usb/lufa/LUFA/Drivers/AT90USBXXX/AT90USBXXX67/ADC.h b/digital/avr/modules/usb/lufa/LUFA/Drivers/AT90USBXXX/AT90USBXXX67/ADC.h new file mode 100644 index 00000000..58027709 --- /dev/null +++ b/digital/avr/modules/usb/lufa/LUFA/Drivers/AT90USBXXX/AT90USBXXX67/ADC.h @@ -0,0 +1,177 @@ +/* + LUFA Library + Copyright (C) Dean Camera, 2009. + + dean [at] fourwalledcubicle [dot] com + www.fourwalledcubicle.com +*/ + +/* + Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com) + + Permission to use, copy, modify, and distribute this software + and its documentation for any purpose and without fee is hereby + granted, provided that the above copyright notice appear in all + copies and that both that the copyright notice and this + permission notice and warranty disclaimer appear in supporting + documentation, and that the name of the author not be used in + advertising or publicity pertaining to distribution of the + software without specific, written prior permission. + + The author disclaim all warranties with regard to this + software, including all implied warranties of merchantability + and fitness. In no event shall the author be liable for any + special, indirect or consequential damages or any damages + whatsoever resulting from loss of use, data or profits, whether + in an action of contract, negligence or other tortious action, + arising out of or in connection with the use or performance of + this software. +*/ + +/** \file + * + * ADC driver for the AT90USB1287, AT90USB1286, AT90USB647, AT90USB646, ATMEGA16U4 and ATMEGA32U4 AVRs. + * + * \note This file should not be included directly. It is automatically included as needed by the ADC driver + * dispatch header located in LUFA/Drivers/AT90USBXXX/ADC.h. + */ + +#ifndef __ADC_AT90USBXXX67_H__ +#define __ADC_AT90USBXXX67_H__ + + /* Includes: */ + #include + #include + + #include "../../../Common/Common.h" + + /* Enable C linkage for C++ Compilers: */ + #if defined(__cplusplus) + extern "C" { + #endif + + /* Preprocessor Checks: */ + #if !defined(INCLUDE_FROM_ADC_H) + #error Do not include this file directly. Include LUFA/Drivers/AT90USBXXX/ADC.h instead. + #endif + + /* Public Interface - May be used in end-application: */ + /* Macros: */ + /** Initializes the ADC, ready for conversions. This must be called before any other ADC operations. + * The "mode" parameter should be a mask comprised of a conversion mode (free running or single) and + * prescaler masks. + */ + #define ADC_Init(mode) MACROS{ ADCSRA = ((1 << ADEN) | mode); }MACROE + + /** Turns off the ADC. If this is called, any further ADC operations will require a call to the + * ADC_Init() macro before the ADC can be used again. + */ + #define ADC_Off() MACROS{ ADCSRA = 0; }MACROE + + /** Indicates if the ADC is enabled. This macro will return boolean true if the ADC subsystem is + * currently enabled, or false otherwise. + */ + #define ADC_GetStatus() ((ADCSRA & (1 << ADEN)) ? true : false) + + /** Indicates if the current ADC conversion is completed, or still in progress. This returns boolean + * false if the reading is still taking place, or true if the conversion is complete and ready to be + * read out with ADC_GetResult(). + */ + #define ADC_IsReadingComplete() (!(ADCSRA & (1 << ADSC))) + + /** Returns the result of the last conversion, as a 16-bit wide integer. */ + #define ADC_GetResult() ADC + + /** Reference mask, for using the voltage present at the AVR's AREF pin for the ADC reference. */ + #define ADC_REFERENCE_AREF 0 + + /** Reference mask, for using the voltage present at the AVR's AVCC pin for the ADC reference. */ + #define ADC_REFERENCE_AVCC (1 << REFS0) + + /** Reference mask, for using the internally generated 2.56V reference voltage as the ADC reference. */ + #define ADC_REFERENCE_INT2560MV ((1 << REFS1)| (1 << REFS0)) + + /** Left-adjusts the 10-bit ADC result, so that the upper 8 bits of the value returned by the + * ADC_GetResult() macro contain the 8 most significant bits of the result. */ + #define ADC_LEFT_ADJUSTED (1 << ADLAR) + + /** Right-adjusts the 10-bit ADC result, so that the lower 8 bits of the value returned by the + * ADC_GetResult() macro contain the 8 least significant bits of the result. */ + #define ADC_RIGHT_ADJUSTED (0 << ADLAR) + + /** Sets the ADC mode to free running, so that conversions take place continuously as fast as the ADC + * is capable of at the given input clock speed. */ + #define ADC_FREE_RUNNING (1 << ADATE) + + /** Sets the ADC mode to single conversion, so that only a single conversion will take place before + * the ADC returns to idle. */ + #define ADC_SINGLE_CONVERSION (0 << ADATE) + + /** Sets the ADC input clock to prescale by a factor of 2 the AVR's system clock. */ + #define ADC_PRESCALE_2 (1 << ADPS0) + + /** Sets the ADC input clock to prescale by a factor of 4 the AVR's system clock. */ + #define ADC_PRESCALE_4 (1 << ADPS1) + + /** Sets the ADC input clock to prescale by a factor of 8 the AVR's system clock. */ + #define ADC_PRESCALE_8 ((1 << ADPS0) | (1 << ADPS1)) + + /** Sets the ADC input clock to prescale by a factor of 16 the AVR's system clock. */ + #define ADC_PRESCALE_16 (1 << ADPS2) + + /** Sets the ADC input clock to prescale by a factor of 32 the AVR's system clock. */ + #define ADC_PRESCALE_32 ((1 << ADPS2) | (1 << ADPS0)) + + /** Sets the ADC input clock to prescale by a factor of 64 the AVR's system clock. */ + #define ADC_PRESCALE_64 ((1 << ADPS2) | (1 << ADPS1)) + + /** Sets the ADC input clock to prescale by a factor of 128 the AVR's system clock. */ + #define ADC_PRESCALE_128 ((1 << ADPS2) | (1 << ADPS1) | (1 << ADPS0)) + + /* Inline Functions: */ + /** Configures the given ADC channel, ready for ADC conversions. This function sets the + * associated port pin as an input and disables the digital portion of the I/O to reduce + * power consumption. + * + * \param Channel ADC channel number to set up for conversions + */ + static inline void ADC_SetupChannel(const uint8_t Channel) + { + DDRD &= ~(1 << Channel); + DIDR0 |= (1 << Channel); + } + + /** Starts the reading of the given channel, but does not wait until the conversion has completed. + * Once executed, the conversion status can be determined via the ADC_IsReadingComplete() macro and + * the result read via the ADC_GetResult() macro. + * + * \param MUXMask Mask comprising of an ADC channel number, reference mask and adjustment mask + */ + static inline void ADC_StartReading(const uint8_t MUXMask) + { + ADMUX = MUXMask; + + ADCSRA |= (1 << ADSC); + } + + /** Performs a complete single reading from channel, including a polling spinloop to wait for the + * conversion to complete, and the returning of the converted value. + * + * \param MUXMask Mask comprising of an ADC channel number, reference mask and adjustment mask + */ + static inline uint16_t ADC_GetChannelReading(const uint8_t MUXMask) ATTR_WARN_UNUSED_RESULT; + static inline uint16_t ADC_GetChannelReading(const uint8_t MUXMask) + { + ADC_StartReading(MUXMask); + + while (!(ADC_IsReadingComplete())); + + return ADC_GetResult(); + } + + /* Disable C linkage for C++ Compilers: */ + #if defined(__cplusplus) + } + #endif + +#endif diff --git a/digital/avr/modules/usb/lufa/LUFA/Drivers/AT90USBXXX/SPI.h b/digital/avr/modules/usb/lufa/LUFA/Drivers/AT90USBXXX/SPI.h new file mode 100644 index 00000000..0b333a80 --- /dev/null +++ b/digital/avr/modules/usb/lufa/LUFA/Drivers/AT90USBXXX/SPI.h @@ -0,0 +1,139 @@ +/* + LUFA Library + Copyright (C) Dean Camera, 2009. + + dean [at] fourwalledcubicle [dot] com + www.fourwalledcubicle.com +*/ + +/* + Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com) + + Permission to use, copy, modify, and distribute this software + and its documentation for any purpose and without fee is hereby + granted, provided that the above copyright notice appear in all + copies and that both that the copyright notice and this + permission notice and warranty disclaimer appear in supporting + documentation, and that the name of the author not be used in + advertising or publicity pertaining to distribution of the + software without specific, written prior permission. + + The author disclaim all warranties with regard to this + software, including all implied warranties of merchantability + and fitness. In no event shall the author be liable for any + special, indirect or consequential damages or any damages + whatsoever resulting from loss of use, data or profits, whether + in an action of contract, negligence or other tortious action, + arising out of or in connection with the use or performance of + this software. +*/ + +/** \file + * + * Hardware SPI subsystem driver for the supported USB AVRs models. + */ + +#ifndef __SPI_H__ +#define __SPI_H__ + + /* Includes: */ + #include + + /* Enable C linkage for C++ Compilers: */ + #if defined(__cplusplus) + extern "C" { + #endif + + /* Private Interface - For use in library only: */ + #if !defined(__DOXYGEN__) + /* Macros: */ + #define SPI_USE_DOUBLESPEED (1 << 7) + #endif + + /* Public Interface - May be used in end-application: */ + /* Macros: */ + /** SPI prescaler mask for SPI_Init(). Divides the system clock by a factor of 2. */ + #define SPI_SPEED_FCPU_DIV_2 SPI_USE_DOUBLESPEED + + /** SPI prescaler mask for SPI_Init(). Divides the system clock by a factor of 4. */ + #define SPI_SPEED_FCPU_DIV_4 0 + + /** SPI prescaler mask for SPI_Init(). Divides the system clock by a factor of 8. */ + #define SPI_SPEED_FCPU_DIV_8 (SPI_USE_DOUBLESPEED | (1 << SPR0)) + + /** SPI prescaler mask for SPI_Init(). Divides the system clock by a factor of 16. */ + #define SPI_SPEED_FCPU_DIV_16 (1 << SPR0) + + /** SPI prescaler mask for SPI_Init(). Divides the system clock by a factor of 32. */ + #define SPI_SPEED_FCPU_DIV_32 (SPI_USE_DOUBLESPEED | (1 << SPR1)) + + /** SPI prescaler mask for SPI_Init(). Divides the system clock by a factor of 64. */ + #define SPI_SPEED_FCPU_DIV_64 (SPI_USE_DOUBLESPEED | (1 << SPR1) | (1 < SPR0)) + + /** SPI prescaler mask for SPI_Init(). Divides the system clock by a factor of 128. */ + #define SPI_SPEED_FCPU_DIV_128 ((1 << SPR1) | (1 < SPR0)) + + /* Inline Functions: */ + /** Initializes the SPI subsystem, ready for transfers. Must be called before calling any other + * SPI routines. + * + * \param PrescalerMask Prescaler mask to set the SPI clock speed + * \param Master If true, sets the SPI system to use master mode, slave if false + */ + static inline void SPI_Init(const uint8_t PrescalerMask, const bool Master) + { + DDRB |= ((1 << 1) | (1 << 2)); + PORTB |= ((1 << 0) | (1 << 3)); + + SPCR = ((1 << SPE) | (Master << MSTR) | (1 << CPOL) | (1 << CPHA) | + (PrescalerMask & ~SPI_USE_DOUBLESPEED)); + + if (PrescalerMask & SPI_USE_DOUBLESPEED) + SPSR = (1 << SPI2X); + } + + /** Sends and receives a byte through the SPI interface, blocking until the transfer is complete. + * + * \param Byte Byte to send through the SPI interface + * + * \return Response byte from the attached SPI device + */ + static inline uint8_t SPI_TransferByte(const uint8_t Byte) ATTR_ALWAYSINLINE; + static inline uint8_t SPI_TransferByte(const uint8_t Byte) + { + SPDR = Byte; + while (!(SPSR & (1 << SPIF))); + return SPDR; + } + + /** 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 Byte Byte to send through the SPI interface + */ + static inline void SPI_SendByte(const uint8_t Byte) ATTR_ALWAYSINLINE; + static inline void SPI_SendByte(const uint8_t Byte) + { + SPDR = Byte; + while (!(SPSR & (1 << SPIF))); + } + + /** Sends a dummy byte through the SPI interface, blocking until the transfer is complete. The response + * byte from the attached SPI device is returned. + * + * \return The response byte from the attached SPI device + */ + static inline uint8_t SPI_ReceiveByte(void) ATTR_ALWAYSINLINE ATTR_WARN_UNUSED_RESULT; + static inline uint8_t SPI_ReceiveByte(void) + { + SPDR = 0x00; + while (!(SPSR & (1 << SPIF))); + return SPDR; + } + + /* Disable C linkage for C++ Compilers: */ + #if defined(__cplusplus) + } + #endif + +#endif diff --git a/digital/avr/modules/usb/lufa/LUFA/Drivers/AT90USBXXX/Serial.c b/digital/avr/modules/usb/lufa/LUFA/Drivers/AT90USBXXX/Serial.c new file mode 100644 index 00000000..e1c74492 --- /dev/null +++ b/digital/avr/modules/usb/lufa/LUFA/Drivers/AT90USBXXX/Serial.c @@ -0,0 +1,65 @@ +/* + LUFA Library + Copyright (C) Dean Camera, 2009. + + dean [at] fourwalledcubicle [dot] com + www.fourwalledcubicle.com +*/ + +/* + Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com) + + Permission to use, copy, modify, and distribute this software + and its documentation for any purpose and without fee is hereby + granted, provided that the above copyright notice appear in all + copies and that both that the copyright notice and this + permission notice and warranty disclaimer appear in supporting + documentation, and that the name of the author not be used in + advertising or publicity pertaining to distribution of the + software without specific, written prior permission. + + The author disclaim all warranties with regard to this + software, including all implied warranties of merchantability + and fitness. In no event shall the author be liable for any + special, indirect or consequential damages or any damages + whatsoever resulting from loss of use, data or profits, whether + in an action of contract, negligence or other tortious action, + arising out of or in connection with the use or performance of + this software. +*/ + +#include "Serial.h" + +void Serial_Init(const uint32_t BaudRate, const bool DoubleSpeed) +{ + UCSR1A = ((DoubleSpeed) ? (1 << U2X1) : 0); + UCSR1B = ((1 << RXEN1) | (1 << TXEN1)); + UCSR1C = ((1 << UCSZ11) | (1 << UCSZ10)); + + DDRD |= (1 << 3); + PORTD |= (1 << 2); + + UBRR1 = SERIAL_UBBRVAL(BaudRate); +} + +void Serial_TxString_P(const char *FlashStringPtr) +{ + uint8_t CurrByte; + + while ((CurrByte = pgm_read_byte(FlashStringPtr)) != 0x00) + { + Serial_TxByte(CurrByte); + FlashStringPtr++; + } +} + +void Serial_TxString(const char *StringPtr) +{ + uint8_t CurrByte; + + while ((CurrByte = *StringPtr) != 0x00) + { + Serial_TxByte(CurrByte); + StringPtr++; + } +} diff --git a/digital/avr/modules/usb/lufa/LUFA/Drivers/AT90USBXXX/Serial.h b/digital/avr/modules/usb/lufa/LUFA/Drivers/AT90USBXXX/Serial.h new file mode 100644 index 00000000..bbf3044f --- /dev/null +++ b/digital/avr/modules/usb/lufa/LUFA/Drivers/AT90USBXXX/Serial.h @@ -0,0 +1,115 @@ +/* + LUFA Library + Copyright (C) Dean Camera, 2009. + + dean [at] fourwalledcubicle [dot] com + www.fourwalledcubicle.com +*/ + +/* + Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com) + + Permission to use, copy, modify, and distribute this software + and its documentation for any purpose and without fee is hereby + granted, provided that the above copyright notice appear in all + copies and that both that the copyright notice and this + permission notice and warranty disclaimer appear in supporting + documentation, and that the name of the author not be used in + advertising or publicity pertaining to distribution of the + software without specific, written prior permission. + + The author disclaim all warranties with regard to this + software, including all implied warranties of merchantability + and fitness. In no event shall the author be liable for any + special, indirect or consequential damages or any damages + whatsoever resulting from loss of use, data or profits, whether + in an action of contract, negligence or other tortious action, + arising out of or in connection with the use or performance of + this software. +*/ + +/** \file + * + * Driver for the USART subsystem on supported USB AVRs. + */ + +#ifndef __SERIAL_H__ +#define __SERIAL_H__ + + /* Includes: */ + #include + #include + #include + + #include "../../Common/Common.h" + #include "../Misc/TerminalCodes.h" + + /* Enable C linkage for C++ Compilers: */ + #if defined(__cplusplus) + extern "C" { + #endif + + /* Public Interface - May be used in end-application: */ + /* Macros: */ + /** Indicates whether a character has been received through the USART - boolean false if no character + * has been received, or non-zero if a character is waiting to be read from the reception buffer. + */ + #define Serial_IsCharReceived() ((UCSR1A & (1 << RXC1)) ? true : false) + + /** Macro for calculating the baud value from a given baud rate when the U2X (double speed) bit is + * not set. + */ + #define SERIAL_UBBRVAL(baud) (((F_CPU / 16) / baud) - 1) + + /** Macro for calculating the baud value from a given baud rate when the U2X (double speed) bit is + * set. + */ + #define SERIAL_2X_UBBRVAL(baud) (((F_CPU / 8) / baud) - 1) + + /* Function Prototypes: */ + /** Initializes the USART, ready for serial data transmission and reception. + * + * \param BaudRate Baud rate to configure the USART to + * \param DoubleSpeed Enables double speed mode when set, halving the sample time to double the baud rate + */ + void Serial_Init(const uint32_t BaudRate, const bool DoubleSpeed); + + /** Transmits a given string located in program space (FLASH) through the USART. + * + * \param FlashStringPtr Pointer to a string located in program space + */ + void Serial_TxString_P(const char *FlashStringPtr) ATTR_NON_NULL_PTR_ARG(1); + + /** Transmits a given string located in SRAM memory through the USART. + * + * \param StringPtr Pointer to a string located in SRAM space + */ + void Serial_TxString(const char *StringPtr) ATTR_NON_NULL_PTR_ARG(1); + + /* Inline Functions: */ + /** Transmits a given byte through the USART. + * + * \param DataByte Byte to transmit through the USART + */ + static inline void Serial_TxByte(const char DataByte) + { + while (!(UCSR1A & (1 << UDRE1))); + UDR1 = DataByte; + } + + /** Receives a byte from the USART. + * + * \return Byte received from the USART + */ + static inline char Serial_RxByte(void) + { + while (!(UCSR1A & (1 << RXC1))); + return UDR1; + } + + /* Disable C linkage for C++ Compilers: */ + #if defined(__cplusplus) + } + #endif + +#endif diff --git a/digital/avr/modules/usb/lufa/LUFA/Drivers/AT90USBXXX/Serial_Stream.c b/digital/avr/modules/usb/lufa/LUFA/Drivers/AT90USBXXX/Serial_Stream.c new file mode 100644 index 00000000..d986af42 --- /dev/null +++ b/digital/avr/modules/usb/lufa/LUFA/Drivers/AT90USBXXX/Serial_Stream.c @@ -0,0 +1,45 @@ +/* + LUFA Library + Copyright (C) Dean Camera, 2009. + + dean [at] fourwalledcubicle [dot] com + www.fourwalledcubicle.com +*/ + +/* + Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com) + + Permission to use, copy, modify, and distribute this software + and its documentation for any purpose and without fee is hereby + granted, provided that the above copyright notice appear in all + copies and that both that the copyright notice and this + permission notice and warranty disclaimer appear in supporting + documentation, and that the name of the author not be used in + advertising or publicity pertaining to distribution of the + software without specific, written prior permission. + + The author disclaim all warranties with regard to this + software, including all implied warranties of merchantability + and fitness. In no event shall the author be liable for any + special, indirect or consequential damages or any damages + whatsoever resulting from loss of use, data or profits, whether + in an action of contract, negligence or other tortious action, + arising out of or in connection with the use or performance of + this software. +*/ + +#include "Serial_Stream.h" + +FILE USARTStream = FDEV_SETUP_STREAM(SerialStream_TxByte, SerialStream_RxByte, _FDEV_SETUP_RW); + +int SerialStream_TxByte(char DataByte, FILE *Stream) +{ + Serial_TxByte(DataByte); + + return 0; +} + +int SerialStream_RxByte(FILE *Stream) +{ + return Serial_RxByte(); +} diff --git a/digital/avr/modules/usb/lufa/LUFA/Drivers/AT90USBXXX/Serial_Stream.h b/digital/avr/modules/usb/lufa/LUFA/Drivers/AT90USBXXX/Serial_Stream.h new file mode 100644 index 00000000..adde5b95 --- /dev/null +++ b/digital/avr/modules/usb/lufa/LUFA/Drivers/AT90USBXXX/Serial_Stream.h @@ -0,0 +1,82 @@ +/* + LUFA Library + Copyright (C) Dean Camera, 2009. + + dean [at] fourwalledcubicle [dot] com + www.fourwalledcubicle.com +*/ + +/* + Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com) + + Permission to use, copy, modify, and distribute this software + and its documentation for any purpose and without fee is hereby + granted, provided that the above copyright notice appear in all + copies and that both that the copyright notice and this + permission notice and warranty disclaimer appear in supporting + documentation, and that the name of the author not be used in + advertising or publicity pertaining to distribution of the + software without specific, written prior permission. + + The author disclaim all warranties with regard to this + software, including all implied warranties of merchantability + and fitness. In no event shall the author be liable for any + special, indirect or consequential damages or any damages + whatsoever resulting from loss of use, data or profits, whether + in an action of contract, negligence or other tortious action, + arising out of or in connection with the use or performance of + this software. +*/ + +/** \file + * + * Serial stream driver for the USART subsystem on supported USB AVRs. This makes use of the functions in the + * regular USART driver, but allows the avr-libc standard stream functions (printf, puts, etc.) to work with the + * USART. + **/ + +#ifndef __SERIAL_STREAM_H__ +#define __SERIAL_STREAM_H__ + + /* Includes: */ + #include + #include + + #include "Serial.h" + + /* Enable C linkage for C++ Compilers: */ + #if defined(__cplusplus) + extern "C" { + #endif + + /* Private Interface - For use in library only: */ + #if !defined(__DOXYGEN__) + /* External Variables: */ + extern FILE USARTStream; + + /* Function Prototypes: */ + int SerialStream_TxByte(char DataByte, FILE *Stream) ATTR_NON_NULL_PTR_ARG(2); + int SerialStream_RxByte(FILE *Stream) ATTR_NON_NULL_PTR_ARG(1); + #endif + + /* Public Interface - May be used in end-application: */ + /* Inline Functions: */ + /** Initializes the serial stream (and regular USART driver) so that both the stream and regular + * USART driver functions can be used. Must be called before any stream or regular USART functions. + * + * \param BaudRate Baud rate to configure the USART to + * \param DoubleSpeed Enables double speed mode when set, halving the sample time to double the baud rate + */ + static inline void SerialStream_Init(const uint32_t BaudRate, const bool DoubleSpeed) + { + Serial_Init(BaudRate, DoubleSpeed); + + stdout = &USARTStream; + } + + /* Disable C linkage for C++ Compilers: */ + #if defined(__cplusplus) + } + #endif + +#endif -- cgit v1.2.3