1 /* ----------------------------------------------------------------------------
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2 * ATMEL Microcontroller Software Support
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3 * ----------------------------------------------------------------------------
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4 * Copyright (c) 2008, Atmel Corporation
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6 * All rights reserved.
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8 * Redistribution and use in source and binary forms, with or without
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9 * modification, are permitted provided that the following conditions are met:
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11 * - Redistributions of source code must retain the above copyright notice,
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12 * this list of conditions and the disclaimer below.
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14 * Atmel's name may not be used to endorse or promote products derived from
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15 * this software without specific prior written permission.
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17 * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
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18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
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20 * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
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21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
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23 * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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24 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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25 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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26 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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27 * ----------------------------------------------------------------------------
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30 //------------------------------------------------------------------------------
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32 //------------------------------------------------------------------------------
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37 //------------------------------------------------------------------------------
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38 // Exported functions
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39 //------------------------------------------------------------------------------
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41 //------------------------------------------------------------------------------
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42 /// Configures the interrupt associated with the given source, using the
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43 /// specified mode and interrupt handler.
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44 /// \param source Interrupt source to configure.
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45 /// \param mode Triggering mode of the interrupt.
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46 /// \param handler Interrupt handler function.
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47 //------------------------------------------------------------------------------
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48 void AIC_ConfigureIT(unsigned int source,
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50 void (*handler)( void ))
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52 // Disable the interrupt first
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53 AT91C_BASE_AIC->AIC_IDCR = 1 << source;
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55 // Configure mode and handler
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56 AT91C_BASE_AIC->AIC_SMR[source] = mode;
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57 AT91C_BASE_AIC->AIC_SVR[source] = (unsigned int) handler;
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60 AT91C_BASE_AIC->AIC_ICCR = 1 << source;
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63 //------------------------------------------------------------------------------
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64 /// Enables interrupts coming from the given (unique) source.
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65 /// \param source Interrupt source to enable.
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66 //------------------------------------------------------------------------------
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67 void AIC_EnableIT(unsigned int source)
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69 AT91C_BASE_AIC->AIC_IECR = 1 << source;
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72 //------------------------------------------------------------------------------
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73 /// Disables interrupts coming from the given (unique) source.
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74 /// \param source Interrupt source to enable.
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75 //------------------------------------------------------------------------------
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76 void AIC_DisableIT(unsigned int source)
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78 AT91C_BASE_AIC->AIC_IDCR = 1 << source;
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