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Diffstat (limited to 'nuttx/arch/arm/src/stm32/stm32_exti_gpio.c')
-rw-r--r--nuttx/arch/arm/src/stm32/stm32_exti_gpio.c337
1 files changed, 0 insertions, 337 deletions
diff --git a/nuttx/arch/arm/src/stm32/stm32_exti_gpio.c b/nuttx/arch/arm/src/stm32/stm32_exti_gpio.c
deleted file mode 100644
index f897691ef..000000000
--- a/nuttx/arch/arm/src/stm32/stm32_exti_gpio.c
+++ /dev/null
@@ -1,337 +0,0 @@
-/****************************************************************************
- * arch/arm/src/stm32/stm32_exti_gpio.c
- *
- * Copyright (C) 2009, 2011-2012 Gregory Nutt. All rights reserved.
- * Copyright (C) 2011 Uros Platise. All rights reserved.
- * Author: Gregory Nutt <gnutt@nuttx.org>
- * Uros Platise <uros.platise@isotel.eu>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- * used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS 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.
- *
- ****************************************************************************/
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-#include <nuttx/config.h>
-#include <nuttx/irq.h>
-#include <nuttx/arch.h>
-
-#include <stdint.h>
-#include <stdbool.h>
-#include <errno.h>
-#include <debug.h>
-
-#include <arch/irq.h>
-
-#include "up_arch.h"
-#include "chip.h"
-#include "stm32_gpio.h"
-#include "stm32_exti.h"
-
-/****************************************************************************
- * Private Data
- ****************************************************************************/
-
-/* Interrupt handlers attached to each EXTI */
-
-static xcpt_t stm32_exti_callbacks[16];
-
-/****************************************************************************
- * Public Data
- ****************************************************************************/
-
- /****************************************************************************
- * Private Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Interrupt Service Routines - Dispatchers
- ****************************************************************************/
-
-static int stm32_exti0_isr(int irq, void *context)
-{
- int ret = OK;
-
- /* Clear the pending interrupt */
-
- putreg32(0x0001, STM32_EXTI_PR);
-
- /* And dispatch the interrupt to the handler */
-
- if (stm32_exti_callbacks[0])
- {
- ret = stm32_exti_callbacks[0](irq, context);
- }
-
- return ret;
-}
-
-static int stm32_exti1_isr(int irq, void *context)
-{
- int ret = OK;
-
- /* Clear the pending interrupt */
-
- putreg32(0x0002, STM32_EXTI_PR);
-
- /* And dispatch the interrupt to the handler */
-
- if (stm32_exti_callbacks[1])
- {
- ret = stm32_exti_callbacks[1](irq, context);
- }
-
- return ret;
-}
-
-static int stm32_exti2_isr(int irq, void *context)
-{
- int ret = OK;
-
- /* Clear the pending interrupt */
-
- putreg32(0x0004, STM32_EXTI_PR);
-
- /* And dispatch the interrupt to the handler */
-
- if (stm32_exti_callbacks[2])
- {
- ret = stm32_exti_callbacks[2](irq, context);
- }
-
- return ret;
-}
-
-static int stm32_exti3_isr(int irq, void *context)
-{
- int ret = OK;
-
- /* Clear the pending interrupt */
-
- putreg32(0x0008, STM32_EXTI_PR);
-
- /* And dispatch the interrupt to the handler */
-
- if (stm32_exti_callbacks[3])
- {
- ret = stm32_exti_callbacks[3](irq, context);
- }
-
- return ret;
-}
-
-static int stm32_exti4_isr(int irq, void *context)
-{
- int ret = OK;
-
- /* Clear the pending interrupt */
-
- putreg32(0x0010, STM32_EXTI_PR);
-
- /* And dispatch the interrupt to the handler */
-
- if (stm32_exti_callbacks[4])
- {
- ret = stm32_exti_callbacks[4](irq, context);
- }
-
- return ret;
-}
-
-static int stm32_exti_multiisr(int irq, void *context, int first, int last)
-{
- uint32_t pr;
- int pin;
- int ret = OK;
-
- /* Examine the state of each pin in the group */
-
- pr = getreg32(STM32_EXTI_PR);
-
- /* And dispatch the interrupt to the handler */
-
- for (pin = first; pin <= last; pin++)
- {
- /* Is an interrupt pending on this pin? */
-
- uint32_t mask = (1 << pin);
- if ((pr & mask) != 0)
- {
- /* Clear the pending interrupt */
-
- putreg32(mask, STM32_EXTI_PR);
-
- /* And dispatch the interrupt to the handler */
-
- if (stm32_exti_callbacks[pin])
- {
- int tmp = stm32_exti_callbacks[pin](irq, context);
- if (tmp != OK)
- {
- ret = tmp;
- }
- }
- }
- }
-
- return ret;
-}
-
-static int stm32_exti95_isr(int irq, void *context)
-{
- return stm32_exti_multiisr(irq, context, 5, 9);
-}
-
-static int stm32_exti1510_isr(int irq, void *context)
-{
- return stm32_exti_multiisr(irq, context, 10, 15);
-}
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: stm32_gpiosetevent
- *
- * Description:
- * Sets/clears GPIO based event and interrupt triggers.
- *
- * Parameters:
- * - pinset: gpio pin configuration
- * - rising/falling edge: enables
- * - event: generate event when set
- * - func: when non-NULL, generate interrupt
- *
- * Returns:
- * The previous value of the interrupt handler function pointer. This value may,
- * for example, be used to restore the previous handler when multiple handlers are
- * used.
- *
- ****************************************************************************/
-
-xcpt_t stm32_gpiosetevent(uint32_t pinset, bool risingedge, bool fallingedge,
- bool event, xcpt_t func)
-{
- uint32_t pin = pinset & GPIO_PIN_MASK;
- uint32_t exti = STM32_EXTI_BIT(pin);
- int irq;
- xcpt_t handler;
- xcpt_t oldhandler = NULL;
-
- /* Select the interrupt handler for this EXTI pin */
-
- if (pin < 5)
- {
- irq = pin + STM32_IRQ_EXTI0;
- switch (pin)
- {
- case 0:
- handler = stm32_exti0_isr;
- break;
-
- case 1:
- handler = stm32_exti1_isr;
- break;
-
- case 2:
- handler = stm32_exti2_isr;
- break;
-
- case 3:
- handler = stm32_exti3_isr;
- break;
-
- default:
- handler = stm32_exti4_isr;
- break;
- }
- }
- else if (pin < 10)
- {
- irq = STM32_IRQ_EXTI95;
- handler = stm32_exti95_isr;
- }
- else
- {
- irq = STM32_IRQ_EXTI1510;
- handler = stm32_exti1510_isr;
- }
-
- /* Get the previous GPIO IRQ handler; Save the new IRQ handler. */
-
- oldhandler = stm32_exti_callbacks[pin];
- stm32_exti_callbacks[pin] = func;
-
- /* Install external interrupt handlers */
-
- if (func)
- {
- irq_attach(irq, handler);
- up_enable_irq(irq);
- }
- else
- {
- up_disable_irq(irq);
- }
-
- /* Configure GPIO, enable EXTI line enabled if event or interrupt is
- * enabled.
- */
-
- if (event || func)
- {
- pinset |= GPIO_EXTI;
- }
-
- stm32_configgpio(pinset);
-
- /* Configure rising/falling edges */
-
- modifyreg32(STM32_EXTI_RTSR,
- risingedge ? 0 : exti,
- risingedge ? exti : 0);
- modifyreg32(STM32_EXTI_FTSR,
- fallingedge ? 0 : exti,
- fallingedge ? exti : 0);
-
- /* Enable Events and Interrupts */
-
- modifyreg32(STM32_EXTI_EMR,
- event ? 0 : exti,
- event ? exti : 0);
- modifyreg32(STM32_EXTI_IMR,
- func ? 0 : exti,
- func ? exti : 0);
-
- /* Return the old IRQ handler */
-
- return oldhandler;
-}
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-24 20:11:05 +0000