Added LPC11Uxx ext_lld driver
git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@5342 35acf78f-673a-0410-8e92-d51de3d6d3f4master
theShed
parent
5e5983ce7d
commit
8e8017b4c6
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/*
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ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
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2011,2012,2013 Giovanni Di Sirio.
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This file is part of ChibiOS/RT.
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ChibiOS/RT is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
|
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the Free Software Foundation; either version 3 of the License, or
|
||||
(at your option) any later version.
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||||
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||||
ChibiOS/RT is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
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||||
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @file LPC11Uxx/ext_lld.c
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* @brief LPC11Uxx EXT subsystem low level driver source.
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*
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* @addtogroup EXT
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* @{
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*/
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#include "ch.h"
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#include "hal.h"
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#if HAL_USE_EXT || defined(__DOXYGEN__)
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#include "ext_lld_isr.h"
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/*===========================================================================*/
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/* Driver local definitions. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver exported variables. */
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/*===========================================================================*/
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/**
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* @brief EXTD1 driver identifier.
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*/
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EXTDriver EXTD1;
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/*===========================================================================*/
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/* Driver local variables and types. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver local functions. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver interrupt handlers. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver exported functions. */
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/*===========================================================================*/
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/**
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* @brief Low level EXT driver initialization.
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*
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* @notapi
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*/
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void ext_lld_init(void) {
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/* Driver initialization.*/
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extObjectInit(&EXTD1);
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}
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/**
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* @brief Configures and activates the EXT peripheral.
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*
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* @param[in] extp pointer to the @p EXTDriver object
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*
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* @notapi
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*/
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void ext_lld_start(EXTDriver *extp) {
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int i;
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LPC_SYSCON->SYSAHBCLKCTRL |= (1<<19);
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/* Configuration of automatic channels.*/
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for (i = 0; i < EXT_MAX_CHANNELS; i++)
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if (extp->config->channels[i].mode & EXT_CH_MODE_AUTOSTART)
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ext_lld_channel_enable(extp, i);
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else
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ext_lld_channel_disable(extp, i);
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}
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/**
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* @brief Deactivates the EXT peripheral.
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*
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* @param[in] extp pointer to the @p EXTDriver object
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*
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* @notapi
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*/
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void ext_lld_stop(EXTDriver *extp) {
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int i;
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if (extp->state == EXT_ACTIVE)
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for (i = 0; i < EXT_MAX_CHANNELS; i++)
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ext_lld_exti_irq_disable(i);
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LPC_GPIO_PIN_INT->ISEL = 0;
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LPC_GPIO_PIN_INT->CIENR = EXT_CHANNELS_MASK;
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LPC_GPIO_PIN_INT->RISE = EXT_CHANNELS_MASK;
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LPC_GPIO_PIN_INT->FALL = EXT_CHANNELS_MASK;
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LPC_GPIO_PIN_INT->IST = EXT_CHANNELS_MASK;
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LPC_SYSCON->SYSAHBCLKCTRL &= ~(1<<19);
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}
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/**
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* @brief Enables an EXT channel.
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*
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* @param[in] extp pointer to the @p EXTDriver object
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* @param[in] channel channel to be enabled
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*
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* @notapi
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*/
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void ext_lld_channel_enable(EXTDriver *extp, expchannel_t channel) {
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// program the IOpin for this channel
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LPC_SYSCON->PINTSEL[channel] = extp->config->channels[channel].iopin;
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// Programming edge irq enables
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if (extp->config->channels[channel].mode & EXT_CH_MODE_RISING_EDGE)
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LPC_GPIO_PIN_INT->SIENR = (1 << channel);
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else
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LPC_GPIO_PIN_INT->CIENR = (1 << channel);
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if (extp->config->channels[channel].mode & EXT_CH_MODE_FALLING_EDGE)
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LPC_GPIO_PIN_INT->SIENF = (1 << channel);
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else
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LPC_GPIO_PIN_INT->CIENF = (1 << channel);
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LPC_GPIO_PIN_INT->RISE = (1<<channel);
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LPC_GPIO_PIN_INT->FALL = (1<<channel);
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LPC_GPIO_PIN_INT->IST = (1<<channel);
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// and enable the irq
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ext_lld_exti_irq_enable( channel );
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}
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/**
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* @brief Disables an EXT channel.
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*
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* @param[in] extp pointer to the @p EXTDriver object
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* @param[in] channel channel to be disabled
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*
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* @notapi
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*/
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void ext_lld_channel_disable(EXTDriver *extp, expchannel_t channel) {
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(void)extp;
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ext_lld_exti_irq_disable(channel);
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LPC_GPIO_PIN_INT->ISEL &= ~(1 << channel);
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LPC_GPIO_PIN_INT->CIENR = (1 << channel);
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LPC_GPIO_PIN_INT->RISE = (1 << channel);
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LPC_GPIO_PIN_INT->FALL = (1 << channel);
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LPC_GPIO_PIN_INT->IST = (1 << channel);
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}
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#endif /* HAL_USE_EXT */
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/** @} */
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@ -0,0 +1,156 @@
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/*
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ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
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2011,2012,2013 Giovanni Di Sirio.
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||||
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This file is part of ChibiOS/RT.
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ChibiOS/RT is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 3 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
ChibiOS/RT is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @file LPC11Uxx/ext_lld.h
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* @brief LPC11Uxx EXT subsystem low level driver header.
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*
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* @addtogroup EXT
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* @{
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*/
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#ifndef _EXT_LLD_H_
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#define _EXT_LLD_H_
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#if HAL_USE_EXT || defined(__DOXYGEN__)
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/*===========================================================================*/
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/* Driver constants. */
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/*===========================================================================*/
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/**
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* @brief Available number of EXT channels.
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*/
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#define EXT_MAX_CHANNELS 8
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/**
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* @brief Mask of the available channels.
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*/
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#define EXT_CHANNELS_MASK ((1 << EXT_MAX_CHANNELS) - 1)
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/** @} */
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/*===========================================================================*/
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/* Driver pre-compile time settings. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Derived constants and error checks. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver data structures and types. */
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/*===========================================================================*/
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/**
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* @brief EXT channel identifier.
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*/
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typedef uint32_t expchannel_t;
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/**
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* @brief EXT channel callback reason.
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*/
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typedef uint32_t expreason_t;
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/**
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* @brief Type of an EXT generic notification callback.
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*
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* @param[in] extp pointer to the @p EXPDriver object triggering the
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* callback
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*/
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typedef void (*extcallback_t)(EXTDriver *extp,
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expchannel_t channel,
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expreason_t reason);
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/**
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* @brief Channel configuration structure.
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*/
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typedef struct {
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/**
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* @brief Channel mode.
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*/
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uint8_t mode;
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/**
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* @brief IO Pin.
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*/
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uint8_t iopin;
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/**
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* @brief Channel callback.
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*/
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extcallback_t cb;
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} EXTChannelConfig;
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/**
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* @brief Driver configuration structure.
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* @note It could be empty on some architectures.
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*/
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typedef struct {
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/**
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* @brief Channel configurations.
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*/
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EXTChannelConfig channels[EXT_MAX_CHANNELS];
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/* End of the mandatory fields.*/
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} EXTConfig;
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/**
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* @brief Structure representing an EXT driver.
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*/
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struct EXTDriver {
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/**
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* @brief Driver state.
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*/
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extstate_t state;
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/**
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* @brief Current configuration data.
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*/
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const EXTConfig *config;
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/* End of the mandatory fields.*/
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};
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/*===========================================================================*/
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/* Driver macros. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* External declarations. */
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/*===========================================================================*/
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#if !defined(__DOXYGEN__)
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extern EXTDriver EXTD1;
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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void ext_lld_init(void);
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void ext_lld_start(EXTDriver *extp);
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void ext_lld_stop(EXTDriver *extp);
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void ext_lld_channel_enable(EXTDriver *extp, expchannel_t channel);
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void ext_lld_channel_disable(EXTDriver *extp, expchannel_t channel);
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#ifdef __cplusplus
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}
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#endif
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#endif /* HAL_USE_EXT */
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#endif /* _EXT_LLD_H_ */
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/** @} */
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@ -0,0 +1,198 @@
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/*
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ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
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2011,2012,2013 Giovanni Di Sirio.
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This file is part of ChibiOS/RT.
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ChibiOS/RT is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
|
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the Free Software Foundation; either version 3 of the License, or
|
||||
(at your option) any later version.
|
||||
|
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ChibiOS/RT is distributed in the hope that it will be useful,
|
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but WITHOUT ANY WARRANTY; without even the implied warranty of
|
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
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GNU General Public License for more details.
|
||||
|
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You should have received a copy of the GNU General Public License
|
||||
along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @file LPC11Uxx/ext_lld_isr.c
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* @brief LPC11Uxx EXT subsystem low level driver ISR code.
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*
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* @addtogroup EXT
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* @{
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*/
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#include "ch.h"
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#include "hal.h"
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#if HAL_USE_EXT || defined(__DOXYGEN__)
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#include "ext_lld_isr.h"
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/*===========================================================================*/
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/* Driver local definitions. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver exported variables. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver local variables and types. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver local functions. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver interrupt handlers. */
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/*===========================================================================*/
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static void ext_lld_interrupt( uint32_t n ) {
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uint32_t reason;
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reason = ((LPC_GPIO_PIN_INT->RISE)>> n ) & 0x01;
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reason |= ((LPC_GPIO_PIN_INT->FALL)>>(n-1)) & 0x02;
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LPC_GPIO_PIN_INT->RISE = (1<<n);
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LPC_GPIO_PIN_INT->FALL = (1<<n);
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LPC_GPIO_PIN_INT->IST = (1<<n);
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EXTD1.config->channels[n].cb(&EXTD1, n, reason);
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}
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/**
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* @brief EXT[0] interrupt handler.
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*
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* @isr
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*/
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CH_IRQ_HANDLER(Vector40) {
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CH_IRQ_PROLOGUE();
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ext_lld_interrupt(0);
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CH_IRQ_EPILOGUE();
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}
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/**
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* @brief EXT[1] interrupt handler.
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*
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* @isr
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*/
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CH_IRQ_HANDLER(Vector44) {
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CH_IRQ_PROLOGUE();
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ext_lld_interrupt(1);
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CH_IRQ_EPILOGUE();
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}
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/**
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* @brief EXT[2] interrupt handler.
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*
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* @isr
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*/
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CH_IRQ_HANDLER(Vector48) {
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CH_IRQ_PROLOGUE();
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ext_lld_interrupt(2);
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CH_IRQ_EPILOGUE();
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}
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/**
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* @brief EXT[3] interrupt handler.
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*
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* @isr
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*/
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CH_IRQ_HANDLER(Vector4C) {
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CH_IRQ_PROLOGUE();
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ext_lld_interrupt(3);
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CH_IRQ_EPILOGUE();
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}
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/**
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* @brief EXT[4] interrupt handler.
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*
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* @isr
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*/
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CH_IRQ_HANDLER(Vector50) {
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CH_IRQ_PROLOGUE();
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ext_lld_interrupt(4);
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CH_IRQ_EPILOGUE();
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}
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/**
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* @brief EXT[5] interrupt handler.
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*
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* @isr
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*/
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CH_IRQ_HANDLER(Vector54) {
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CH_IRQ_PROLOGUE();
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ext_lld_interrupt(5);
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CH_IRQ_EPILOGUE();
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}
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/**
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* @brief EXT[6] interrupt handler.
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*
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* @isr
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*/
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CH_IRQ_HANDLER(Vector58) {
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CH_IRQ_PROLOGUE();
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ext_lld_interrupt(6);
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CH_IRQ_EPILOGUE();
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}
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/**
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* @brief EXT[7] interrupt handler.
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*
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* @isr
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*/
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CH_IRQ_HANDLER(Vector5C) {
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CH_IRQ_PROLOGUE();
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ext_lld_interrupt(7);
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CH_IRQ_EPILOGUE();
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}
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/*===========================================================================*/
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/* Driver exported functions. */
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/*===========================================================================*/
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static const uint8_t LPC11_EXT_EXTIn_IRQ_PRIORITY[] =
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{ LPC11_EXT_EXTI0_IRQ_PRIORITY,
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LPC11_EXT_EXTI1_IRQ_PRIORITY,
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LPC11_EXT_EXTI2_IRQ_PRIORITY,
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LPC11_EXT_EXTI3_IRQ_PRIORITY,
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LPC11_EXT_EXTI4_IRQ_PRIORITY,
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LPC11_EXT_EXTI5_IRQ_PRIORITY,
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LPC11_EXT_EXTI6_IRQ_PRIORITY,
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LPC11_EXT_EXTI7_IRQ_PRIORITY };
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/**
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* @brief Enables EXTI IRQ sources.
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*
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* @notapi
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*/
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void ext_lld_exti_irq_enable( uint32_t exti_n ) {
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nvicEnableVector(FLEX_INT0_IRQn + exti_n,
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CORTEX_PRIORITY_MASK(LPC11_EXT_EXTIn_IRQ_PRIORITY[exti_n]));
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}
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/**
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* @brief Disables EXTI IRQ sources.
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*
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* @notapi
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*/
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void ext_lld_exti_irq_disable( uint32_t exti_n ) {
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nvicDisableVector(FLEX_INT0_IRQn + exti_n);
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}
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#endif /* HAL_USE_EXT */
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/** @} */
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@ -0,0 +1,133 @@
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/*
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||||
ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
|
||||
2011,2012,2013 Giovanni Di Sirio.
|
||||
|
||||
This file is part of ChibiOS/RT.
|
||||
|
||||
ChibiOS/RT is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 3 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
ChibiOS/RT is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
/**
|
||||
* @file LPC11Uxx/ext_lld_isr.h
|
||||
* @brief LPC11Uxx EXT subsystem low level driver ISR header.
|
||||
*
|
||||
* @addtogroup EXT
|
||||
* @{
|
||||
*/
|
||||
|
||||
#ifndef _EXT_LLD_ISR_H_
|
||||
#define _EXT_LLD_ISR_H_
|
||||
|
||||
#if HAL_USE_EXT || defined(__DOXYGEN__)
|
||||
|
||||
/*===========================================================================*/
|
||||
/* Driver constants. */
|
||||
/*===========================================================================*/
|
||||
|
||||
/*===========================================================================*/
|
||||
/* Driver pre-compile time settings. */
|
||||
/*===========================================================================*/
|
||||
|
||||
/**
|
||||
* @name Configuration options
|
||||
* @{
|
||||
*/
|
||||
/**
|
||||
* @brief EXTI0 interrupt priority level setting.
|
||||
*/
|
||||
#if !defined(LPC11_EXT_EXTI0_IRQ_PRIORITY) || defined(__DOXYGEN__)
|
||||
#define LPC11_EXT_EXTI0_IRQ_PRIORITY 3
|
||||
#endif
|
||||
|
||||
/**
|
||||
* @brief EXTI1 interrupt priority level setting.
|
||||
*/
|
||||
#if !defined(LPC11_EXT_EXTI1_IRQ_PRIORITY) || defined(__DOXYGEN__)
|
||||
#define LPC11_EXT_EXTI1_IRQ_PRIORITY 3
|
||||
#endif
|
||||
|
||||
/**
|
||||
* @brief EXTI2 interrupt priority level setting.
|
||||
*/
|
||||
#if !defined(LPC11_EXT_EXTI2_IRQ_PRIORITY) || defined(__DOXYGEN__)
|
||||
#define LPC11_EXT_EXTI2_IRQ_PRIORITY 3
|
||||
#endif
|
||||
|
||||
/**
|
||||
* @brief EXTI3 interrupt priority level setting.
|
||||
*/
|
||||
#if !defined(LPC11_EXT_EXTI3_IRQ_PRIORITY) || defined(__DOXYGEN__)
|
||||
#define LPC11_EXT_EXTI3_IRQ_PRIORITY 3
|
||||
#endif
|
||||
|
||||
/**
|
||||
* @brief EXTI4 interrupt priority level setting.
|
||||
*/
|
||||
#if !defined(LPC11_EXT_EXTI4_IRQ_PRIORITY) || defined(__DOXYGEN__)
|
||||
#define LPC11_EXT_EXTI4_IRQ_PRIORITY 3
|
||||
#endif
|
||||
|
||||
/**
|
||||
* @brief EXTI5 interrupt priority level setting.
|
||||
*/
|
||||
#if !defined(LPC11_EXT_EXTI5_IRQ_PRIORITY) || defined(__DOXYGEN__)
|
||||
#define LPC11_EXT_EXTI5_IRQ_PRIORITY 3
|
||||
#endif
|
||||
|
||||
/**
|
||||
* @brief EXTI6 interrupt priority level setting.
|
||||
*/
|
||||
#if !defined(LPC11_EXT_EXTI6_IRQ_PRIORITY) || defined(__DOXYGEN__)
|
||||
#define LPC11_EXT_EXTI6_IRQ_PRIORITY 3
|
||||
#endif
|
||||
|
||||
/**
|
||||
* @brief EXTI7 interrupt priority level setting.
|
||||
*/
|
||||
#if !defined(LPC11_EXT_EXTI7_IRQ_PRIORITY) || defined(__DOXYGEN__)
|
||||
#define LPC11_EXT_EXTI7_IRQ_PRIORITY 3
|
||||
#endif
|
||||
|
||||
/** @} */
|
||||
|
||||
/*===========================================================================*/
|
||||
/* Derived constants and error checks. */
|
||||
/*===========================================================================*/
|
||||
|
||||
/*===========================================================================*/
|
||||
/* Driver data structures and types. */
|
||||
/*===========================================================================*/
|
||||
|
||||
/*===========================================================================*/
|
||||
/* Driver macros. */
|
||||
/*===========================================================================*/
|
||||
|
||||
/*===========================================================================*/
|
||||
/* External declarations. */
|
||||
/*===========================================================================*/
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
void ext_lld_exti_irq_enable( uint32_t exti_n );
|
||||
void ext_lld_exti_irq_disable( uint32_t exti_n );
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* HAL_USE_EXT */
|
||||
|
||||
#endif /* _EXT_LLD_ISR_H_ */
|
||||
|
||||
/** @} */
|
||||
|
|
@ -3,7 +3,9 @@ PLATFORMSRC = ${CHIBIOS}/os/hal/platforms/LPC11Uxx/hal_lld.c \
|
|||
${CHIBIOS}/os/hal/platforms/LPC11Uxx/gpt_lld.c \
|
||||
${CHIBIOS}/os/hal/platforms/LPC11Uxx/pal_lld.c \
|
||||
${CHIBIOS}/os/hal/platforms/LPC11Uxx/spi_lld.c \
|
||||
${CHIBIOS}/os/hal/platforms/LPC11Uxx/serial_lld.c
|
||||
${CHIBIOS}/os/hal/platforms/LPC11Uxx/serial_lld.c \
|
||||
${CHIBIOS}/os/hal/platforms/LPC11Uxx/ext_lld.c \
|
||||
${CHIBIOS}/os/hal/platforms/LPC11Uxx/ext_lld_isr.c
|
||||
|
||||
# Required include directories
|
||||
PLATFORMINC = ${CHIBIOS}/os/hal/platforms/LPC11Uxx
|
||||
|
|
|
|||
Loading…
Reference in New Issue