| /* ---------------------------------------------------------------------------- |
| * ATMEL Microcontroller Software Support |
| * ---------------------------------------------------------------------------- |
| * Copyright (c) 2009, Atmel Corporation |
| * |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are met: |
| * |
| * - Redistributions of source code must retain the above copyright notice, |
| * this list of conditions and the disclaimer below. |
| * |
| * Atmel's name may not be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE |
| * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, |
| * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
| * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, |
| * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * ---------------------------------------------------------------------------- |
| */ |
| |
| /*---------------------------------------------------------------------------- |
| * Headers |
| *----------------------------------------------------------------------------*/ |
| |
| #include "chip.h" |
| #include "trace.h" |
| |
| #include <assert.h> |
| |
| /*---------------------------------------------------------------------------- |
| * Local definitions |
| *----------------------------------------------------------------------------*/ |
| |
| #define MASK_STATUS0 0xFFFFFFFC |
| #define MASK_STATUS1 0xFFFFFFFF |
| |
| /*---------------------------------------------------------------------------- |
| * Exported functions |
| *----------------------------------------------------------------------------*/ |
| |
| /** |
| * \brief Enables the clock of a peripheral. The peripheral ID is used |
| * to identify which peripheral is targetted. |
| * |
| * \note The ID must NOT be shifted (i.e. 1 << ID_xxx). |
| * |
| * \param id Peripheral ID (ID_xxx). |
| */ |
| extern void PMC_EnablePeripheral( uint32_t dwId ) |
| { |
| assert( dwId < 35 ) ; |
| |
| if ( dwId < 32 ) |
| { |
| if ( (PMC->PMC_PCSR0 & ((uint32_t)1 << dwId)) == ((uint32_t)1 << dwId) ) |
| { |
| TRACE_DEBUG( "PMC_EnablePeripheral: clock of peripheral" " %" PRIu32 " is already enabled\n\r", dwId ) ; |
| } |
| else |
| { |
| PMC->PMC_PCER0 = 1 << dwId ; |
| } |
| } |
| else |
| { |
| dwId -= 32; |
| if ((PMC->PMC_PCSR1 & ((uint32_t)1 << dwId)) == ((uint32_t)1 << dwId)) |
| { |
| TRACE_DEBUG( "PMC_EnablePeripheral: clock of peripheral" " %" PRIu32 " is already enabled\n\r", dwId + 32 ) ; |
| } |
| else |
| { |
| PMC->PMC_PCER1 = 1 << dwId ; |
| } |
| } |
| } |
| |
| /** |
| * \brief Disables the clock of a peripheral. The peripheral ID is used |
| * to identify which peripheral is targetted. |
| * |
| * \note The ID must NOT be shifted (i.e. 1 << ID_xxx). |
| * |
| * \param id Peripheral ID (ID_xxx). |
| */ |
| extern void PMC_DisablePeripheral( uint32_t dwId ) |
| { |
| assert( dwId < 35 ) ; |
| |
| if ( dwId < 32 ) |
| { |
| if ( (PMC->PMC_PCSR0 & ((uint32_t)1 << dwId)) != ((uint32_t)1 << dwId) ) |
| { |
| TRACE_DEBUG("PMC_DisablePeripheral: clock of peripheral" " %" PRIu32 " is not enabled\n\r", dwId ) ; |
| } |
| else |
| { |
| PMC->PMC_PCDR0 = 1 << dwId ; |
| } |
| } |
| else |
| { |
| dwId -= 32 ; |
| if ( (PMC->PMC_PCSR1 & ((uint32_t)1 << dwId)) != ((uint32_t)1 << dwId) ) |
| { |
| TRACE_DEBUG( "PMC_DisablePeripheral: clock of peripheral" " %" PRIu32 " is not enabled\n\r", dwId + 32 ) ; |
| } |
| else |
| { |
| PMC->PMC_PCDR1 = 1 << dwId ; |
| } |
| } |
| } |
| |
| /** |
| * \brief Enable all the periph clock via PMC. |
| */ |
| extern void PMC_EnableAllPeripherals( void ) |
| { |
| PMC->PMC_PCER0 = MASK_STATUS0 ; |
| while ( (PMC->PMC_PCSR0 & MASK_STATUS0) != MASK_STATUS0 ) ; |
| |
| PMC->PMC_PCER1 = MASK_STATUS1 ; |
| while ( (PMC->PMC_PCSR1 & MASK_STATUS1) != MASK_STATUS1 ) ; |
| |
| TRACE_DEBUG( "Enable all periph clocks\n\r" ) ; |
| } |
| |
| /** |
| * \brief Disable all the periph clock via PMC. |
| */ |
| extern void PMC_DisableAllPeripherals( void ) |
| { |
| PMC->PMC_PCDR0 = MASK_STATUS0 ; |
| while ( (PMC->PMC_PCSR0 & MASK_STATUS0) != 0 ) ; |
| |
| PMC->PMC_PCDR1 = MASK_STATUS1 ; |
| while ( (PMC->PMC_PCSR1 & MASK_STATUS1) != 0 ) ; |
| |
| TRACE_DEBUG( "Disable all periph clocks\n\r" ) ; |
| } |
| |
| /** |
| * \brief Get Periph Status for the given peripheral ID. |
| * |
| * \param id Peripheral ID (ID_xxx). |
| */ |
| extern uint32_t PMC_IsPeriphEnabled( uint32_t dwId ) |
| { |
| assert( dwId < 35 ) ; |
| |
| if ( dwId < 32 ) |
| { |
| return ( PMC->PMC_PCSR0 & (1 << dwId) ) ; |
| } |
| else { |
| return ( PMC->PMC_PCSR1 & (1 << (dwId - 32)) ) ; |
| } |
| } |