75 lines
2.8 KiB
C
75 lines
2.8 KiB
C
/****************************************************************************
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* Copyright (c) 2011 by Michael Blandford. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the author nor the names of its contributors may
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* be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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* THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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* THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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****************************************************************************
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* History:
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*
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****************************************************************************/
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#ifndef sound_driver_h
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#define sound_driver_h
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#define NUM_VOL_LEVELS 24
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extern void startSound( void ) ;
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extern void buzzer_on( void ) ;
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extern void buzzer_off( void ) ;
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extern void buzzer_sound( uint8_t time ) ;
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extern void setFrequency( uint32_t frequency ) ;
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extern void start_timer1( void ) ;
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extern void initDac( void ) ;
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extern void end_sound( void ) ;
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extern void write_coprocessor( uint8_t *ptr, uint32_t count ) ;
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extern void read_coprocessor( bool onlytemp=false ) ;
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extern uint8_t Coproc_read ;
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extern int8_t Coproc_valid ;
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extern int8_t Coproc_temp ;
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extern uint16_t *nextAudioData;
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extern uint16_t nextAudioSize;
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inline void toneStart()
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{
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PMC->PMC_PCER0 |= 0x40000000L ; // Enable peripheral clock to DAC
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DACC->DACC_IER = DACC_IER_ENDTX ;
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}
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inline void toneStop()
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{
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DACC->DACC_IDR = DACC_IDR_ENDTX ; // Disable interrupt
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}
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extern volatile uint8_t Buzzer_count ;
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extern void init_twi( void ) ;
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extern void setVolume( register uint8_t volume ) ;
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extern "C" void TWI0_IRQHandler (void) ;
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#endif
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