diff options
Diffstat (limited to 'os/hal/platforms/AT91SAM7/ext_lld.c')
| -rw-r--r-- | os/hal/platforms/AT91SAM7/ext_lld.c | 235 |
1 files changed, 0 insertions, 235 deletions
diff --git a/os/hal/platforms/AT91SAM7/ext_lld.c b/os/hal/platforms/AT91SAM7/ext_lld.c deleted file mode 100644 index 91d0b7a8d..000000000 --- a/os/hal/platforms/AT91SAM7/ext_lld.c +++ /dev/null @@ -1,235 +0,0 @@ -/*
- ChibiOS/RT - Copyright (C) 2006-2013 Giovanni Di Sirio
-
- Licensed under the Apache License, Version 2.0 (the "License");
- you may not use this file except in compliance with the License.
- You may obtain a copy of the License at
-
- http://www.apache.org/licenses/LICENSE-2.0
-
- Unless required by applicable law or agreed to in writing, software
- distributed under the License is distributed on an "AS IS" BASIS,
- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- See the License for the specific language governing permissions and
- limitations under the License.
-*/
-
-/**
- * @file AT91SAM7/ext_lld.c
- * @brief AT91SAM7 EXT subsystem low level driver source.
- *
- * @addtogroup EXT
- * @{
- */
-
-#include "ch.h"
-#include "hal.h"
-
-#if HAL_USE_EXT || defined(__DOXYGEN__)
-
-/*===========================================================================*/
-/* Driver local definitions. */
-/*===========================================================================*/
-
-/*===========================================================================*/
-/* Driver exported variables. */
-/*===========================================================================*/
-
-/**
- * @brief EXTDA driver identifier.
- */
-EXTDriver EXTDA;
-
-#if (SAM7_PLATFORM == SAM7X128) || (SAM7_PLATFORM == SAM7X256) || \
- (SAM7_PLATFORM == SAM7X512) || (SAM7_PLATFORM == SAM7A3)
-/**
- * @brief EXTDB driver identifier.
- */
-EXTDriver EXTDB;
-#endif
-
-/*===========================================================================*/
-/* Driver local variables and types. */
-/*===========================================================================*/
-
-/*===========================================================================*/
-/* Driver local functions. */
-/*===========================================================================*/
-
-/**
- * @brief Handles external interrupts.
- *
- * @param[in] extp pointer to the driver that received the interrupt
- */
-static void ext_lld_serveInterrupt(EXTDriver *extp) {
- uint32_t irqFlags;
- uint32_t ch;
-
- chSysLockFromIsr();
-
- /* Read flags of pending PIO interrupts.*/
- irqFlags = extp->pio->PIO_ISR;
-
- /* Call callback function for any pending interrupt.*/
- for(ch = 0; ch < EXT_MAX_CHANNELS; ch++) {
-
- /* Check if the channel is activated and if its IRQ flag is set.*/
- if((extp->config->channels[ch].mode &
- EXT_CH_MODE_ENABLED & EXT_CH_MODE_EDGES_MASK)
- && ((1 << ch) & irqFlags)) {
- (extp->config->channels[ch].cb)(extp, ch);
- }
- }
-
- chSysUnlockFromIsr();
-
- AT91C_BASE_AIC->AIC_EOICR = 0;
-}
-
-/*===========================================================================*/
-/* Driver interrupt handlers. */
-/*===========================================================================*/
-
-/**
- * @brief EXTI[0] interrupt handler.
- *
- * @isr
- */
-CH_IRQ_HANDLER(EXTIA_IRQHandler) {
-
- CH_IRQ_PROLOGUE();
-
- ext_lld_serveInterrupt(&EXTDA);
-
- CH_IRQ_EPILOGUE();
-}
-
-#if (SAM7_PLATFORM == SAM7X128) || (SAM7_PLATFORM == SAM7X256) || \
- (SAM7_PLATFORM == SAM7X512) || (SAM7_PLATFORM == SAM7A3)
-/**
- * @brief EXTI[1] interrupt handler.
- *
- * @isr
- */
-CH_IRQ_HANDLER(EXTIB_IRQHandler) {
- CH_IRQ_PROLOGUE();
-
- ext_lld_serveInterrupt(&EXTDB);
-
- CH_IRQ_EPILOGUE();
-}
-#endif
-
-/*===========================================================================*/
-/* Driver exported functions. */
-/*===========================================================================*/
-
-/**
- * @brief Low level EXT driver initialization.
- *
- * @notapi
- */
-void ext_lld_init(void) {
-
- /* Driver initialization.*/
- extObjectInit(&EXTDA);
-
- /* Set PIO base addresses.*/
- EXTDA.pio = AT91C_BASE_PIOA;
-
- /* Set peripheral IDs.*/
- EXTDA.pid = AT91C_ID_PIOA;
-
-#if (SAM7_PLATFORM == SAM7X128) || (SAM7_PLATFORM == SAM7X256) || \
- (SAM7_PLATFORM == SAM7X512) || (SAM7_PLATFORM == SAM7A3)
- /* Same for PIOB.*/
- extObjectInit(&EXTDB);
- EXTDB.pio = AT91C_BASE_PIOB;
- EXTDB.pid = AT91C_ID_PIOB;
-#endif
-}
-
-/**
- * @brief Configures and activates the EXT peripheral.
- *
- * @param[in] extp pointer to the @p EXTDriver object
- *
- * @notapi
- */
-void ext_lld_start(EXTDriver *extp) {
- uint16_t ch;
- uint32_t ier = 0;
- const EXTConfig *config = extp->config;
-
- switch(extp->pid) {
- case AT91C_ID_PIOA:
- AIC_ConfigureIT(AT91C_ID_PIOA, SAM7_computeSMR(config->mode,
- config->priority),
- EXTIA_IRQHandler);
- break;
-#if (SAM7_PLATFORM == SAM7X128) || (SAM7_PLATFORM == SAM7X256) || \
- (SAM7_PLATFORM == SAM7X512) || (SAM7_PLATFORM == SAM7A3)
- case AT91C_ID_PIOB:
- AIC_ConfigureIT(AT91C_ID_PIOB, SAM7_computeSMR(config->mode,
- config->priority),
- EXTIB_IRQHandler);
- break;
-#endif
- }
-
- /* Enable and Disable channels with respect to config.*/
- for(ch = 0; ch < EXT_MAX_CHANNELS; ch++) {
- ier |= (config->channels[ch].mode & EXT_CH_MODE_EDGES_MASK & EXT_CH_MODE_ENABLED ? 1 : 0) << ch;
- }
- extp->pio->PIO_IER = ier;
- extp->pio->PIO_IDR = ~ier;
-
- /* Enable interrupt on corresponding PIO port in AIC.*/
- AIC_EnableIT(extp->pid);
-}
-
-/**
- * @brief Deactivates the EXT peripheral.
- *
- * @param[in] extp pointer to the @p EXTDriver object
- *
- * @notapi
- */
-void ext_lld_stop(EXTDriver *extp) {
-
- /* Disable interrupt on corresponding PIO port in AIC.*/
- AIC_DisableIT(extp->pid);
-}
-
-/**
- * @brief Enables an EXT channel.
- *
- * @param[in] extp pointer to the @p EXTDriver object
- * @param[in] channel channel to be enabled
- *
- * @notapi
- */
-void ext_lld_channel_enable(EXTDriver *extp, expchannel_t channel) {
-
- chDbgCheck((extp->config->channels[channel].cb != NULL),
- "Call back pointer can not be NULL");
-
- extp->pio->PIO_IER = (1 << channel);
-}
-
-/**
- * @brief Disables an EXT channel.
- *
- * @param[in] extp pointer to the @p EXTDriver object
- * @param[in] channel channel to be disabled
- *
- * @notapi
- */
-void ext_lld_channel_disable(EXTDriver *extp, expchannel_t channel) {
-
- extp->pio->PIO_IDR = (1 << channel);
-}
-
-#endif /* HAL_USE_EXT */
-
-/** @} */
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