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Disabling any of EXTI 5-9 interrupts was disabling interrupts for all EXTI 5-9. Same issue with EXTI 10-15. From Jussi Kivilinna.

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This commit is contained in:
Gregory Nutt 2015-01-27 09:15:43 -06:00
parent 6114cf769f
commit c74aaafc72
1 changed files with 31 additions and 7 deletions
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38
arch/arm/src/stm32/stm32_exti_gpio.c
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@ -1,7 +1,7 @@
/****************************************************************************
* arch/arm/src/stm32/stm32_exti_gpio.c
*
* Copyright (C) 2009, 2011-2012 Gregory Nutt. All rights reserved.
* Copyright (C) 2009, 2011-2012, 2015 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>
@ -245,12 +245,17 @@ xcpt_t stm32_gpiosetevent(uint32_t pinset, bool risingedge, bool fallingedge,
int irq;
xcpt_t handler;
xcpt_t oldhandler = NULL;
int nshared;
xcpt_t *shared_cbs;
int i;
/* Select the interrupt handler for this EXTI pin */
if (pin < 5)
{
irq = pin + STM32_IRQ_EXTI0;
irq = pin + STM32_IRQ_EXTI0;
nshared = 1;
shared_cbs = &stm32_exti_callbacks[pin];
switch (pin)
{
case 0:
@ -276,13 +281,17 @@ xcpt_t stm32_gpiosetevent(uint32_t pinset, bool risingedge, bool fallingedge,
}
else if (pin < 10)
{
irq = STM32_IRQ_EXTI95;
handler = stm32_exti95_isr;
irq = STM32_IRQ_EXTI95;
handler = stm32_exti95_isr;
shared_cbs = &stm32_exti_callbacks[5];
nshared = 5;
}
else
{
irq = STM32_IRQ_EXTI1510;
handler = stm32_exti1510_isr;
irq = STM32_IRQ_EXTI1510;
handler = stm32_exti1510_isr;
shared_cbs = &stm32_exti_callbacks[10];
nshared = 6;
}
/* Get the previous GPIO IRQ handler; Save the new IRQ handler. */
@ -299,7 +308,22 @@ xcpt_t stm32_gpiosetevent(uint32_t pinset, bool risingedge, bool fallingedge,
}
else
{
up_disable_irq(irq);
/* Only disable IRQ if shared handler does not have any active
* callbacks.
*/
for (i = 0; i < nshared; i++)
{
if (shared_cbs[i] != NULL)
{
break;
}
}
if (i == nshared)
{
up_disable_irq(irq);
}
}
/* Configure GPIO, enable EXTI line enabled if event or interrupt is