diff options
Diffstat (limited to 'c/src/lib/libbsp/arm/atsam/libraries/libchip/source/pio_it.c')
| -rw-r--r-- | c/src/lib/libbsp/arm/atsam/libraries/libchip/source/pio_it.c | 283 |
1 files changed, 0 insertions, 283 deletions
diff --git a/c/src/lib/libbsp/arm/atsam/libraries/libchip/source/pio_it.c b/c/src/lib/libbsp/arm/atsam/libraries/libchip/source/pio_it.c deleted file mode 100644 index 2c619db136..0000000000 --- a/c/src/lib/libbsp/arm/atsam/libraries/libchip/source/pio_it.c +++ /dev/null @@ -1,283 +0,0 @@ -/* ---------------------------------------------------------------------------- */ -/* Atmel Microcontroller Software Support */ -/* SAM Software Package License */ -/* ---------------------------------------------------------------------------- */ -/* Copyright (c) 2015, Atmel Corporation */ -/* */ -/* All rights reserved. */ -/* */ -/* Redistribution and use in source and binary forms, with or without */ -/* modification, are permitted provided that the following condition is 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. */ -/* ---------------------------------------------------------------------------- */ - -/* - * \file - */ - -/*---------------------------------------------------------------------------- - * Headers - *----------------------------------------------------------------------------*/ - -#include "chip.h" - -#include <rtems/irq-extension.h> -#include <rtems/sysinit.h> -#include <bsp/fatal.h> - -/*---------------------------------------------------------------------------- - * Local definitions - *----------------------------------------------------------------------------*/ - -/* Maximum number of interrupt sources that can be defined. This - * constant can be increased, but the current value is the smallest possible - * that will be compatible with all existing projects. */ -#define MAX_INTERRUPT_SOURCES 7 - -/*---------------------------------------------------------------------------- - * Local types - *----------------------------------------------------------------------------*/ - -/** - * Describes a PIO interrupt source, including the PIO instance triggering the - * interrupt and the associated interrupt handler. - */ -typedef struct _InterruptSource { - /* Pointer to the source pin instance. */ - const Pin *pPin; - - /* Interrupt handler. */ - void (*handler)(const Pin *, void *arg); - - void *arg; -} InterruptSource; - -/*---------------------------------------------------------------------------- - * Local variables - *----------------------------------------------------------------------------*/ - -/* List of interrupt sources. */ -static InterruptSource _aIntSources[MAX_INTERRUPT_SOURCES]; - -/* Number of currently defined interrupt sources. */ -static uint32_t _dwNumSources = 0; - -/*---------------------------------------------------------------------------- - * Local Functions - *----------------------------------------------------------------------------*/ - -/** - * \brief Handles all interrupts on the given PIO controller. - * \param id PIO controller ID. - * \param pPio PIO controller base address. - */ -static void PIO_Interrupt(Pio *pPio, uint32_t id) -{ - uint32_t status; - size_t i; - - status = pPio->PIO_ISR; - status &= pPio->PIO_IMR; - - for (i = 0; status != 0 && i < MAX_INTERRUPT_SOURCES; ++i) { - const InterruptSource *is = &_aIntSources[i]; - const Pin *pin = is->pPin;; - - if (pin->id == id) { - uint32_t mask = pin->mask; - - if ((status & mask) != 0) { - status &= ~mask; - (*is->handler)(pin, is->arg); - } - } - } -} - -/*---------------------------------------------------------------------------- - * Global Functions - *----------------------------------------------------------------------------*/ - -/** - * \brief Parallel IO Controller A interrupt handler - * \Redefined PIOA interrupt handler for NVIC interrupt table. - */ -static void PIOA_Interrupt(void *arg) -{ - PIO_Interrupt(arg, ID_PIOA); -} - -/** - * \brief Parallel IO Controller B interrupt handler - * \Redefined PIOB interrupt handler for NVIC interrupt table. - */ -static void PIOB_Interrupt(void *arg) -{ - PIO_Interrupt(arg, ID_PIOB); -} - -/** - * \brief Parallel IO Controller C interrupt handler - * \Redefined PIOC interrupt handler for NVIC interrupt table. - */ -static void PIOC_Interrupt(void *arg) -{ - PIO_Interrupt(arg, ID_PIOC); -} - - -/** - * \brief Parallel IO Controller D interrupt handler - * \Redefined PIOD interrupt handler for NVIC interrupt table. - */ -static void PIOD_Interrupt(void *arg) -{ - PIO_Interrupt(arg, ID_PIOD); -} - -/** - * \brief Parallel IO Controller E interrupt handler - * \Redefined PIOE interrupt handler for NVIC interrupt table. - */ -static void PIOE_Interrupt(void *arg) -{ - PIO_Interrupt(arg, ID_PIOE); -} - -static void PIO_SysInitializeInterrupts(void) -{ - rtems_status_code sc; - - TRACE_DEBUG("PIO_Initialize()\n\r"); - - /* Configure PIO interrupt sources */ - TRACE_DEBUG("PIO_Initialize: Configuring PIOA\n\r"); - PMC_EnablePeripheral(ID_PIOA); - PIOA->PIO_ISR; - PIOA->PIO_IDR = 0xFFFFFFFF; - sc = rtems_interrupt_handler_install( - PIOA_IRQn, - "PIO A", - RTEMS_INTERRUPT_UNIQUE, - PIOA_Interrupt, - PIOA - ); - if (sc != RTEMS_SUCCESSFUL) { - bsp_fatal(ATSAM_FATAL_PIO_IRQ_A); - } - - TRACE_DEBUG("PIO_Initialize: Configuring PIOB\n\r"); - PMC_EnablePeripheral(ID_PIOB); - PIOB->PIO_ISR; - PIOB->PIO_IDR = 0xFFFFFFFF; - sc = rtems_interrupt_handler_install( - PIOB_IRQn, - "PIO B", - RTEMS_INTERRUPT_UNIQUE, - PIOB_Interrupt, - PIOB - ); - if (sc != RTEMS_SUCCESSFUL) { - bsp_fatal(ATSAM_FATAL_PIO_IRQ_B); - } - - TRACE_DEBUG("PIO_Initialize: Configuring PIOC\n\r"); - PMC_EnablePeripheral(ID_PIOC); - PIOC->PIO_ISR; - PIOC->PIO_IDR = 0xFFFFFFFF; - sc = rtems_interrupt_handler_install( - PIOC_IRQn, - "PIO C", - RTEMS_INTERRUPT_UNIQUE, - PIOC_Interrupt, - PIOC - ); - if (sc != RTEMS_SUCCESSFUL) { - bsp_fatal(ATSAM_FATAL_PIO_IRQ_C); - } - - TRACE_DEBUG("PIO_Initialize: Configuring PIOD\n\r"); - PMC_EnablePeripheral(ID_PIOD); - PIOD->PIO_ISR; - PIOD->PIO_IDR = 0xFFFFFFFF; - sc = rtems_interrupt_handler_install( - PIOD_IRQn, - "PIO D", - RTEMS_INTERRUPT_UNIQUE, - PIOD_Interrupt, - PIOD - ); - if (sc != RTEMS_SUCCESSFUL) { - bsp_fatal(ATSAM_FATAL_PIO_IRQ_D); - } - - TRACE_DEBUG("PIO_Initialize: Configuring PIOE\n\r"); - PMC_EnablePeripheral(ID_PIOE); - PIOE->PIO_ISR; - PIOE->PIO_IDR = 0xFFFFFFFF; - sc = rtems_interrupt_handler_install( - PIOE_IRQn, - "PIO E", - RTEMS_INTERRUPT_UNIQUE, - PIOE_Interrupt, - PIOE - ); - if (sc != RTEMS_SUCCESSFUL) { - bsp_fatal(ATSAM_FATAL_PIO_IRQ_E); - } -} - -RTEMS_SYSINIT_ITEM(PIO_SysInitializeInterrupts, RTEMS_SYSINIT_BSP_START, - RTEMS_SYSINIT_ORDER_LAST); - -/** - * Configures a PIO or a group of PIO to generate an interrupt on status - * change. The provided interrupt handler will be called with the triggering - * pin as its parameter (enabling different pin instances to share the same - * handler). - * \param pPin Pointer to a Pin instance. - * \param handler Interrupt handler function pointer. - * \param arg Pointer to interrupt handler argument - */ -void PIO_ConfigureIt(const Pin *pPin, void (*handler)(const Pin *, void *arg), - void *arg) -{ - InterruptSource *pSource; - rtems_interrupt_level level; - - TRACE_DEBUG("PIO_ConfigureIt()\n\r"); - - rtems_interrupt_disable(level); - - if (_dwNumSources == MAX_INTERRUPT_SOURCES) { - bsp_fatal(ATSAM_FATAL_PIO_CONFIGURE_IT); - } - - pSource = &(_aIntSources[_dwNumSources]); - pSource->pPin = pPin; - pSource->handler = handler; - pSource->arg = arg; - - _dwNumSources++; - - rtems_interrupt_enable(level); - - /* Define new source */ - TRACE_DEBUG("PIO_ConfigureIt: Defining new source #%d.\n\r", _dwNumSources); -} |