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authorGregory Nutt <gnutt@nuttx.org>2013-06-02 13:04:40 -0600
committerGregory Nutt <gnutt@nuttx.org>2013-06-02 13:04:40 -0600
commit9c0f7e4217cf195b2f83175b0014e273fbc805da (patch)
tree46f769b6188d65d2f3471b9fe7bdae2676162f56 /nuttx/arch/arm/src/sam3u/sam3u_gpioirq.c
parent872bef7d41462d36b81ddc8de82a2cde18eaf096 (diff)
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Eliminated sam3u_internal.h. Use separate header files instead. More renaming from sam3u_ to sam_ to make room in the namespce for the sam4l_
Diffstat (limited to 'nuttx/arch/arm/src/sam3u/sam3u_gpioirq.c')
-rw-r--r--nuttx/arch/arm/src/sam3u/sam3u_gpioirq.c367
1 files changed, 0 insertions, 367 deletions
diff --git a/nuttx/arch/arm/src/sam3u/sam3u_gpioirq.c b/nuttx/arch/arm/src/sam3u/sam3u_gpioirq.c
deleted file mode 100644
index a08c4e754..000000000
--- a/nuttx/arch/arm/src/sam3u/sam3u_gpioirq.c
+++ /dev/null
@@ -1,367 +0,0 @@
-/****************************************************************************
- * arch/arm/src/sam3u/sam3u_gpioirq.c
- * arch/arm/src/chip/sam3u_gpioirq.c
- *
- * Copyright (C) 2010 Gregory Nutt. All rights reserved.
- * Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * 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 <stdint.h>
-#include <assert.h>
-#include <errno.h>
-#include <debug.h>
-
-#include <nuttx/init.h>
-#include <nuttx/arch.h>
-
-#include <arch/irq.h>
-#include <arch/board/board.h>
-
-#include "up_arch.h"
-#include "up_internal.h"
-
-#include "sam3u_internal.h"
-#include "chip/sam_pio.h"
-#include "chip/sam_pmc.h"
-
-#ifdef CONFIG_GPIO_IRQ
-
-/****************************************************************************
- * Private Definitions
- ****************************************************************************/
-
-/****************************************************************************
- * Private Data
- ****************************************************************************/
-
-/****************************************************************************
- * Public Data
- ****************************************************************************/
-
-/****************************************************************************
- * Private Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: sam3u_gpiobase
- *
- * Description:
- * Return the base address of the GPIO register set
- *
- ****************************************************************************/
-
-static inline uint32_t sam3u_gpiobase(uint16_t pinset)
-{
- int port = (pinset & GPIO_PORT_MASK) >> GPIO_PORT_SHIFT;
- return SAM_PION_BASE(port >> GPIO_PORT_SHIFT);
-}
-
-/****************************************************************************
- * Name: sam3u_gpiopin
- *
- * Description:
- * Returun the base address of the GPIO register set
- *
- ****************************************************************************/
-
-static inline int sam3u_gpiopin(uint16_t pinset)
-{
- return 1 << ((pinset & GPIO_PIN_MASK) >> GPIO_PIN_SHIFT);
-}
-
-/****************************************************************************
- * Name: sam3u_irqbase
- *
- * Description:
- * Return gpio information associated with this IRQ
- *
- ****************************************************************************/
-
-static int sam3u_irqbase(int irq, uint32_t *base, int *pin)
-{
- if (irq >= SAM_IRQ_NIRQS)
- {
-#ifdef CONFIG_GPIOA_IRQ
- if (irq <= SAM_IRQ_PA31)
- {
- *base = SAM_PIOA_BASE;
- *pin = irq - SAM_IRQ_PA0;
- return OK;
- }
-#endif
-#ifdef CONFIG_GPIOB_IRQ
- if (irq <= SAM_IRQ_PB31)
- {
- *base = SAM_PIOB_BASE;
- *pin = irq - SAM_IRQ_PB0;
- return OK;
- }
-#endif
-#ifdef CONFIG_GPIOC_IRQ
- if (irq <= SAM_IRQ_PC31)
- {
- *base = SAM_PIOC_BASE;
- *pin = irq - SAM_IRQ_PC0;
- return OK;
- }
-#endif
- }
- return -EINVAL;
-}
-
-/****************************************************************************
- * Name: up_gpioa/b/cinterrupt
- *
- * Description:
- * Receive GPIOA/B/C interrupts
- *
- ****************************************************************************/
-
-static int up_gpiointerrupt(uint32_t base, int irq0, void *context)
-{
- uint32_t pending;
- uint32_t bit;
- int irq;
-
- pending = getreg32(base + SAM_PIO_ISR_OFFSET) & getreg32(base + SAM_PIO_IMR_OFFSET);
- for (bit = 1, irq = irq0; pending != 0; bit <<= 1, irq++)
- {
- if ((pending & bit) != 0)
- {
- /* Re-deliver the IRQ (recurses! We got here from irq_dispatch!) */
-
- irq_dispatch(irq, context);
-
- /* Remove this from the set of pending interrupts */
-
- pending &= ~bit;
- }
- }
- return OK;
-}
-
-#ifdef CONFIG_GPIOA_IRQ
-static int up_gpioainterrupt(int irq, void *context)
-{
- return up_gpiointerrupt(SAM_PIOA_BASE, SAM_IRQ_PA0, context);
-}
-#endif
-
-#ifdef CONFIG_GPIOB_IRQ
-static int up_gpiobinterrupt(int irq, void *context)
-{
- return up_gpiointerrupt(SAM_PIOB_BASE, SAM_IRQ_PB0, context);
-}
-#endif
-
-#ifdef CONFIG_GPIOC_IRQ
-static int up_gpiocinterrupt(int irq, void *context)
-{
- return up_gpiointerrupt(SAM_PIOC_BASE, SAM_IRQ_PC0, context);
-}
-#endif
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: sam3u_gpioirqinitialize
- *
- * Description:
- * Initialize logic to support a second level of interrupt decoding for
- * GPIO pins.
- *
- ****************************************************************************/
-
-void sam3u_gpioirqinitialize(void)
-{
- uint32_t pcer;
-
- /* Configure GPIOA interrupts */
-
-#ifdef CONFIG_GPIOA_IRQ
- /* Enable GPIOA clocking */
-
- pcer |= (1 << SAM_PID_PIOA);
- putreg32(pcer, SAM_PMC_PCER);
-
- /* Clear and disable all GPIOA interrupts */
-
- (void)getreg32(SAM_PIOA_ISR);
- putreg32(0xffffffff, SAM_PIOA_IDR);
-
- /* Attach and enable the GPIOA IRQ */
-
- (void)irq_attach(SAM_IRQ_PIOA, up_gpioainterrupt);
- up_enable_irq(SAM_IRQ_PIOA);
-#endif
-
- /* Configure GPIOB interrupts */
-
-#ifdef CONFIG_GPIOB_IRQ
- /* Enable GPIOB clocking */
-
- pcer |= (1 << SAM_PID_PIOB);
- putreg32(pcer, SAM_PMC_PCER);
-
- /* Clear and disable all GPIOB interrupts */
-
- (void)getreg32(SAM_PIOB_ISR);
- putreg32(0xffffffff, SAM_PIOB_IDR);
-
- /* Attach and enable the GPIOB IRQ */
-
- (void)irq_attach(SAM_IRQ_PIOB, up_gpiobinterrupt);
- up_enable_irq(SAM_IRQ_PIOB);
-#endif
-
- /* Configure GPIOC interrupts */
-
-#ifdef CONFIG_GPIOC_IRQ
- /* Enable GPIOC clocking */
-
- pcer |= (1 << SAM_PID_PIOC);
- putreg32(pcer, SAM_PMC_PCER);
-
- /* Clear and disable all GPIOC interrupts */
-
- (void)getreg32(SAM_PIOC_ISR);
- putreg32(0xffffffff, SAM_PIOC_IDR);
-
- /* Attach and enable the GPIOC IRQ */
-
- (void)irq_attach(SAM_IRQ_PIOC, up_gpioainterrupt);
- up_enable_irq(SAM_IRQ_PIOC);
-#endif
-}
-
-/************************************************************************************
- * Name: sam3u_gpioirq
- *
- * Description:
- * Configure an interrupt for the specified GPIO pin.
- *
- ************************************************************************************/
-
-void sam3u_gpioirq(uint16_t pinset)
-{
- uint32_t base = sam3u_gpiobase(pinset);
- int pin = sam3u_gpiopin(pinset);
-
- /* Are any additional interrupt modes selected? */
-
- if ((pinset & GPIO_INT_MASK) != 0)
- {
- /* Yes.. Enable additional interrupt mode */
-
- putreg32(pin, base + SAM_PIO_AIMER_OFFSET);
-
- /* Level or edge detected interrupt? */
-
- if ((pinset & GPIO_INT_LEVEL) != 0)
- {
- putreg32(pin, base + SAM_PIO_LSR_OFFSET); /* Level */
- }
- else
- {
- putreg32(pin, base + SAM_PIO_ESR_OFFSET); /* Edge */
- }
-
- /* High level/rising edge or low level /falling edge? */
-
- if ((pinset & GPIO_INT_HIGHLEVEL) != 0)
- {
- putreg32(pin, base + SAM_PIO_REHLSR_OFFSET); /* High level/Rising edge */
- }
- else
- {
- putreg32(pin, base + SAM_PIO_FELLSR_OFFSET); /* Low level/Falling edge */
- }
- }
- else
- {
- /* No.. Disable additional interrupt mode */
-
- putreg32(pin, base + SAM_PIO_AIMDR_OFFSET);
- }
-}
-
-/************************************************************************************
- * Name: sam3u_gpioirqenable
- *
- * Description:
- * Enable the interrupt for specified GPIO IRQ
- *
- ************************************************************************************/
-
-void sam3u_gpioirqenable(int irq)
-{
- uint32_t base;
- int pin;
-
- if (sam3u_irqbase(irq, &base, &pin) == OK)
- {
- /* Clear (all) pending interrupts and enable this pin interrupt */
-
- (void)getreg32(base + SAM_PIO_ISR_OFFSET);
- putreg32((1 << pin), base + SAM_PIO_IER_OFFSET);
- }
-}
-
-/************************************************************************************
- * Name: sam3u_gpioirqdisable
- *
- * Description:
- * Disable the interrupt for specified GPIO IRQ
- *
- ************************************************************************************/
-
-void sam3u_gpioirqdisable(int irq)
-{
- uint32_t base;
- int pin;
-
- if (sam3u_irqbase(irq, &base, &pin) == OK)
- {
- /* Disable this pin interrupt */
-
- putreg32((1 << pin), base + SAM_PIO_IDR_OFFSET);
- }
-}
-
-#endif /* CONFIG_GPIO_IRQ */