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Diffstat (limited to 'protocol/lufa/LUFA-120730/LUFA/Drivers/Peripheral/AVR8/ADC_AVR8.h')
| -rw-r--r-- | protocol/lufa/LUFA-120730/LUFA/Drivers/Peripheral/AVR8/ADC_AVR8.h | 456 |
1 files changed, 0 insertions, 456 deletions
diff --git a/protocol/lufa/LUFA-120730/LUFA/Drivers/Peripheral/AVR8/ADC_AVR8.h b/protocol/lufa/LUFA-120730/LUFA/Drivers/Peripheral/AVR8/ADC_AVR8.h deleted file mode 100644 index c002f79f7..000000000 --- a/protocol/lufa/LUFA-120730/LUFA/Drivers/Peripheral/AVR8/ADC_AVR8.h +++ /dev/null @@ -1,456 +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 ADC Peripheral Driver (AVR8)
- *
- * On-chip Analogue-to-Digital converter (ADC) driver for supported U4, U6 and U7 model AVRs that contain an ADC
- * peripheral internally.
- *
- * \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/ADC.h.
- */
-
-/** \ingroup Group_ADC
- * \defgroup Group_ADC_AVR8 ADC Peripheral Driver (AVR8)
- *
- * \section Sec_ModDescription Module Description
- * On-chip Analogue-to-Digital converter (ADC) driver for supported U4, U6 and U7 model AVRs that contain an ADC
- * peripheral internally.
- *
- * \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/ADC.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 ADC driver before first use
- * ADC_Init(ADC_FREE_RUNNING | ADC_PRESCALE_32);
- *
- * // Must setup the ADC channel to read beforehand
- * ADC_SetupChannel(1);
- *
- * // Perform a single conversion of the ADC channel 1
- * ADC_GetChannelReading(ADC_REFERENCE_AVCC | ADC_RIGHT_ADJUSTED | ADC_CHANNEL1);
- * printf("Conversion Result: %d\r\n", ADC_GetResult());
- *
- * // Start reading ADC channel 1 in free running (continuous conversion) mode
- * ADC_StartReading(ADC_REFERENCE_AVCC | ADC_RIGHT_ADJUSTED | ADC_CHANNEL1);
- * for (;;)
- * {
- * while (!(ADC_IsReadingComplete())) {};
- * printf("Conversion Result: %d\r\n", ADC_GetResult());
- * }
- * \endcode
- *
- * @{
- */
-
-#ifndef __ADC_AVR8_H__
-#define __ADC_AVR8_H__
-
- /* Includes: */
- #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/Peripheral/ADC.h instead.
- #endif
-
- #if !(defined(__AVR_AT90USB1286__) || defined(__AVR_AT90USB646__) || \
- defined(__AVR_AT90USB1287__) || defined(__AVR_AT90USB647__) || \
- defined(__AVR_ATmega16U4__) || defined(__AVR_ATmega32U4__) || \
- defined(__AVR_ATmega32U6__))
- #error The ADC peripheral driver is not currently available for your selected microcontroller model.
- #endif
-
- /* Private Interface - For use in library only: */
- #if !defined(__DOXYGEN__)
- /* Macros: */
- #define _ADC_GET_MUX_MASK2(y) ADC_CHANNEL ## y
- #define _ADC_GET_MUX_MASK(y) _ADC_GET_MUX_MASK2(y)
- #endif
-
- /* Public Interface - May be used in end-application: */
- /* Macros: */
- /** \name ADC Reference Configuration Masks */
- //@{
- /** 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))
- //@}
-
- /** \name ADC Result Adjustment Configuration Masks */
- //@{
- /** Left-adjusts the 10-bit ADC result, so that the upper 8 bits of the value returned by the
- * \ref 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
- * \ref ADC_GetResult() macro contain the 8 least significant bits of the result.
- */
- #define ADC_RIGHT_ADJUSTED (0 << ADLAR)
- //@}
-
- /** \name ADC Mode Configuration Masks */
- //@{
- /** 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)
- //@}
-
- /** \name ADC Prescaler Configuration Masks */
- //@{
- /** 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))
- //@}
-
- /** \name ADC MUX Masks */
- //@{
- /** MUX mask define for the ADC0 channel of the ADC. See \ref ADC_StartReading() and \ref ADC_GetChannelReading(). */
- #define ADC_CHANNEL0 (0x00 << MUX0)
-
- /** MUX mask define for the ADC1 channel of the ADC. See \ref ADC_StartReading() and \ref ADC_GetChannelReading(). */
- #define ADC_CHANNEL1 (0x01 << MUX0)
-
- #if (!(defined(__AVR_ATmega16U4__) || defined(__AVR_ATmega32U4__)) || defined(__DOXYGEN__))
- /** MUX mask define for the ADC2 channel of the ADC. See \ref ADC_StartReading() and \ref ADC_GetChannelReading().
- *
- * \note Not available on all AVR models.
- */
- #define ADC_CHANNEL2 (0x02 << MUX0)
-
- /** MUX mask define for the ADC3 channel of the ADC. See \ref ADC_StartReading() and \ref ADC_GetChannelReading().
- *
- * \note Not available on all AVR models.
- */
- #define ADC_CHANNEL3 (0x03 << MUX0)
- #endif
-
- /** MUX mask define for the ADC4 channel of the ADC. See \ref ADC_StartReading() and \ref ADC_GetChannelReading(). */
- #define ADC_CHANNEL4 (0x04 << MUX0)
-
- /** MUX mask define for the ADC5 channel of the ADC. See \ref ADC_StartReading() and \ref ADC_GetChannelReading(). */
- #define ADC_CHANNEL5 (0x05 << MUX0)
-
- /** MUX mask define for the ADC6 channel of the ADC. See \ref ADC_StartReading() and \ref ADC_GetChannelReading(). */
- #define ADC_CHANNEL6 (0x06 << MUX0)
-
- /** MUX mask define for the ADC7 channel of the ADC. See \ref ADC_StartReading and \ref ADC_GetChannelReading. */
- #define ADC_CHANNEL7 (0x07 << MUX0)
-
- #if (defined(__AVR_ATmega16U4__) || defined(__AVR_ATmega32U4__) || defined(__DOXYGEN__))
- /** MUX mask define for the ADC8 channel of the ADC. See \ref ADC_StartReading() and \ref ADC_GetChannelReading().
- *
- * \note Not available on all AVR models.
- */
- #define ADC_CHANNEL8 ((1 << 8) | (0x00 << MUX0))
-
- /** MUX mask define for the ADC9 channel of the ADC. See \ref ADC_StartReading() and \ref ADC_GetChannelReading().
- *
- * \note Not available on all AVR models.
- */
- #define ADC_CHANNEL9 ((1 << 8) | (0x01 << MUX0))
-
- /** MUX mask define for the ADC10 channel of the ADC. See \ref ADC_StartReading() and \ref ADC_GetChannelReading().
- *
- * \note Not available on all AVR models.
- */
- #define ADC_CHANNEL10 ((1 << 8) | (0x02 << MUX0))
-
- /** MUX mask define for the ADC11 channel of the ADC. See \ref ADC_StartReading() and \ref ADC_GetChannelReading().
- *
- * \note Not available on all AVR models.
- */
- #define ADC_CHANNEL11 ((1 << 8) | (0x03 << MUX0))
-
- /** MUX mask define for the ADC12 channel of the ADC. See \ref ADC_StartReading() and \ref ADC_GetChannelReading().
- *
- * \note Not available on all AVR models.
- */
- #define ADC_CHANNEL12 ((1 << 8) | (0x04 << MUX0))
-
- /** MUX mask define for the ADC13 channel of the ADC. See \ref ADC_StartReading() and \ref ADC_GetChannelReading().
- *
- * \note Not available on all AVR models.
- */
- #define ADC_CHANNEL13 ((1 << 8) | (0x05 << MUX0))
-
- /** MUX mask define for the internal temperature sensor channel of the ADC. See \ref ADC_StartReading() and
- * \ref ADC_GetChannelReading().
- *
- * \note Not available on all AVR models.
- */
- #define ADC_INT_TEMP_SENS ((1 << 8) | (0x07 << MUX0))
- #endif
-
- /** MUX mask define for the internal 1.1V band-gap channel of the ADC. See \ref ADC_StartReading() and \ref ADC_GetChannelReading(). */
- #define ADC_1100MV_BANDGAP (0x1E << MUX0)
-
- /** Retrieves the ADC MUX mask for the given ADC channel number.
- *
- * \attention This macro will only work correctly on channel numbers that are compile-time
- * constants defined by the preprocessor.
- *
- * \param[in] Channel Index of the ADC channel whose MUX mask is to be retrieved.
- */
- #define ADC_GET_CHANNEL_MASK(Channel) _ADC_GET_MUX_MASK(Channel)
- //@}
-
- /* 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.
- *
- * \note This must only be called for ADC channels with are connected to a physical port
- * pin of the AVR, denoted by its special alternative function ADCx.
- *
- * \warning The channel number must be specified as an integer, and <b>not</b> a \c ADC_CHANNEL* mask.
- *
- * \param[in] ChannelIndex ADC channel number to set up for conversions.
- */
- static inline void ADC_SetupChannel(const uint8_t ChannelIndex)
- {
- #if (defined(__AVR_AT90USB1286__) || defined(__AVR_AT90USB646__) || \
- defined(__AVR_AT90USB1287__) || defined(__AVR_AT90USB647__) || \
- defined(__AVR_ATmega32U6__))
- DDRF &= ~(1 << ChannelIndex);
- DIDR0 |= (1 << ChannelIndex);
- #elif (defined(__AVR_ATmega16U4__) || defined(__AVR_ATmega32U4__))
- if (ChannelIndex < 8)
- {
- DDRF &= ~(1 << ChannelIndex);
- DIDR0 |= (1 << ChannelIndex);
- }
- else if (ChannelIndex == 8)
- {
- DDRD &= ~(1 << 4);
- DIDR2 |= (1 << 0);
- }
- else if (ChannelIndex < 11)
- {
- DDRD &= ~(1 << (ChannelIndex - 3));
- DIDR2 |= (1 << (ChannelIndex - 8));
- }
- else
- {
- DDRB &= ~(1 << (ChannelIndex - 7));
- DIDR2 |= (1 << (ChannelIndex - 8));
- }
- #endif
- }
-
- /** De-configures the given ADC channel, re-enabling digital I/O mode instead of analog. This
- * function sets the associated port pin as an input and re-enabled the digital portion of
- * the I/O.
- *
- * \note This must only be called for ADC channels with are connected to a physical port
- * pin of the AVR, denoted by its special alternative function ADCx.
- *
- * \warning The channel number must be specified as an integer, and <b>not</b> a \c ADC_CHANNEL* mask.
- *
- * \param[in] ChannelIndex ADC channel number to set up for conversions.
- */
- static inline void ADC_DisableChannel(const uint8_t ChannelIndex)
- {
- #if (defined(__AVR_AT90USB1286__) || defined(__AVR_AT90USB646__) || \
- defined(__AVR_AT90USB1287__) || defined(__AVR_AT90USB647__) || \
- defined(__AVR_ATmega32U6__))
- DDRF &= ~(1 << ChannelIndex);
- DIDR0 &= ~(1 << ChannelIndex);
- #elif (defined(__AVR_ATmega16U4__) || defined(__AVR_ATmega32U4__))
- if (ChannelIndex < 8)
- {
- DDRF &= ~(1 << ChannelIndex);
- DIDR0 &= ~(1 << ChannelIndex);
- }
- else if (ChannelIndex == 8)
- {
- DDRD &= ~(1 << 4);
- DIDR2 &= ~(1 << 0);
- }
- else if (ChannelIndex < 11)
- {
- DDRD &= ~(1 << (ChannelIndex - 3));
- DIDR2 &= ~(1 << (ChannelIndex - 8));
- }
- else
- {
- DDRB &= ~(1 << (ChannelIndex - 7));
- DIDR2 &= ~(1 << (ChannelIndex - 8));
- }
- #endif
- }
-
- /** 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 \ref ADC_IsReadingComplete() macro and
- * the result read via the \ref ADC_GetResult() macro.
- *
- * If the ADC has been initialized in free running mode, calling this function once will begin the repeated
- * conversions. If the ADC is in single conversion mode (or the channel to convert from is to be changed),
- * this function must be called each time a conversion is to take place.
- *
- * \param[in] MUXMask ADC channel mask, reference mask and adjustment mask.
- */
- static inline void ADC_StartReading(const uint16_t MUXMask)
- {
- ADMUX = MUXMask;
-
- #if (defined(__AVR_ATmega16U4__) || defined(__AVR_ATmega32U4__) || defined(__DOXYGEN__))
- if (MUXMask & (1 << 8))
- ADCSRB |= (1 << MUX5);
- else
- ADCSRB &= ~(1 << MUX5);
- #endif
-
- ADCSRA |= (1 << ADSC);
- }
-
- /** Indicates if the current ADC conversion is completed, or still in progress.
- *
- * \return Boolean false if the reading is still taking place, or true if the conversion is
- * complete and ready to be read out with \ref ADC_GetResult().
- */
- static inline bool ADC_IsReadingComplete(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
- static inline bool ADC_IsReadingComplete(void)
- {
- return ((ADCSRA & (1 << ADIF)) ? true : false);
- }
-
- /** Retrieves the conversion value of the last completed ADC conversion and clears the reading
- * completion flag.
- *
- * \return The result of the last ADC conversion as an unsigned value.
- */
- static inline uint16_t ADC_GetResult(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
- static inline uint16_t ADC_GetResult(void)
- {
- ADCSRA |= (1 << ADIF);
- return ADC;
- }
-
- /** Performs a complete single reading from channel, including a polling spin-loop to wait for the
- * conversion to complete, and the returning of the converted value.
- *
- * \note For free running mode, the automated conversions should be initialized with a single call
- * to \ref ADC_StartReading() to select the channel and begin the automated conversions, and
- * the results read directly from the \ref ADC_GetResult() instead to reduce overhead.
- *
- * \param[in] MUXMask Mask comprising of an ADC channel mask, reference mask and adjustment mask.
- *
- * \return Converted ADC result for the given ADC channel.
- */
- static inline uint16_t ADC_GetChannelReading(const uint16_t MUXMask) ATTR_WARN_UNUSED_RESULT;
- static inline uint16_t ADC_GetChannelReading(const uint16_t MUXMask)
- {
- ADC_StartReading(MUXMask);
-
- while (!(ADC_IsReadingComplete()));
-
- return ADC_GetResult();
- }
-
- /** 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.
- *
- * \param[in] Mode Mask of ADC prescale and mode settings.
- */
- static inline void ADC_Init(const uint8_t Mode) ATTR_ALWAYS_INLINE;
- static inline void ADC_Init(const uint8_t Mode)
- {
- ADCSRA = ((1 << ADEN) | Mode);
- }
-
- /** Turns off the ADC. If this is called, any further ADC operations will require a call to
- * \ref ADC_Init() before the ADC can be used again.
- */
- static inline void ADC_Disable(void) ATTR_ALWAYS_INLINE;
- static inline void ADC_Disable(void)
- {
- ADCSRA = 0;
- }
-
- /** Indicates if the ADC is currently enabled.
- *
- * \return Boolean \c true if the ADC subsystem is currently enabled, \c false otherwise.
- */
- static inline bool ADC_GetStatus(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
- static inline bool ADC_GetStatus(void)
- {
- return ((ADCSRA & (1 << ADEN)) ? true : false);
- }
-
- /* Disable C linkage for C++ Compilers: */
- #if defined(__cplusplus)
- }
- #endif
-
-#endif
-
-/** @} */
-
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