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-rw-r--r--nuttx/arch/c5471/src/up_irq.c242
1 files changed, 0 insertions, 242 deletions
diff --git a/nuttx/arch/c5471/src/up_irq.c b/nuttx/arch/c5471/src/up_irq.c
deleted file mode 100644
index fabd47b26c..0000000000
--- a/nuttx/arch/c5471/src/up_irq.c
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@@ -1,242 +0,0 @@
-/************************************************************
- * up_irq.c
- *
- * Copyright (C) 2007 Gregory Nutt. All rights reserved.
- * Author: Gregory Nutt <spudmonkey@racsa.co.cr>
- *
- * 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 Gregory Nutt 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 <sys/types.h>
-#include <nuttx/irq.h>
-#include "c5471.h"
-#include "os_internal.h"
-#include "up_internal.h"
-
-/************************************************************
- * Definitions
- ************************************************************/
-
-#define ILR_EDGESENSITIVE 0x00000020
-#define ILR_PRIORITY 0x0000001E
-
-/************************************************************
- * Public Data
- ************************************************************/
-
-uint32 *current_regs;
-
-/************************************************************
- * Private Data
- ************************************************************/
-
-/* The value of _vflashstart is defined in ld.script. It
- * could be hard-coded because we know that correct IRAM
- * area is 0xffc00000.
- */
-
-extern int _svectors; /* Type does not matter */
-
-/* The C5471 has FLASH at the low end of memory. The
- * rrload bootloaer will catch all interrupts and re-vector
- * them to vectors stored in IRAM. The following table is
- * used to initialize those vectors.
- */
-
-static up_vector_t g_vectorinittab[] =
-{
- (up_vector_t)NULL,
- up_vectorundefinsn,
- up_vectorswi,
- up_vectorprefetch,
- up_vectordata,
- up_vectoraddrexcptn,
- up_vectorirq,
- up_vectorfiq
-};
-#define NVECTORS ((sizeof(g_vectorinittab)) / sizeof(up_vector_t))
-
-/************************************************************
- * Private Functions
- ************************************************************/
-
-/************************************************************
- * Name: up_ackirq
- *
- * Description:
- * Acknowlede the IRQ.Bit 0 of the Interrupt Control
- * Register == New IRQ agreement (NEW_IRQ_AGR). Reset IRQ
- * output. Clear source IRQ register. Enables a new IRQ
- * generation. Reset by internal logic.
- *
- ************************************************************/
-
-static inline void up_ackirq(unsigned int irq)
-{
- uint32 reg;
- reg = getreg32(SRC_IRQ_REG); /* Insure appropriate IT_REG bit clears */
- putreg32(reg | 0x00000001, INT_CTRL_REG); /* write the NEW_IRQ_AGR bit. */
-}
-
-/************************************************************
- * Name: up_ackfiq
- *
- * Description:
- * Acknowledge the FIQ. Bit 1 of the Interrupt Control
- * Register == New FIQ agreement (NEW_FIQ_AGR). Reset FIQ
- * output. Clear source FIQ register. Enables a new FIQ
- * generation. Reset by internal logic.
- *
- ************************************************************/
-
-static inline void up_ackfiq(unsigned int irq)
-{
- uint32 reg;
- reg = getreg32(SRC_FIQ_REG); /* Insure appropriate IT_REG bit clears */
- putreg32(reg | 0x00000002, INT_CTRL_REG); /* write the NEW_FIQ_AGR bit. */
-}
-
-/************************************************************
- * Name: up_vectorinitialize
- ************************************************************/
-
-static inline void up_vectorinitialize(void)
-{
- up_vector_t *src = g_vectorinittab;
- up_vector_t *dest = (up_vector_t*)&_svectors;
- int i;
-
- for (i = 0; i < NVECTORS; i++)
- {
- *dest++ = *src++;
- }
-}
-
-/************************************************************
- * Public Funtions
- ************************************************************/
-
-/************************************************************
- * Name: up_irqinitialize
- ************************************************************/
-
-void up_irqinitialize(void)
-{
- /* Disable all interrupts. */
-
- putreg32(0x0000ffff, MASK_IT_REG);
-
- /* Clear any pending interrupts */
-
- up_ackirq(0);
- up_ackfiq(0);
- putreg32(0x00000000, IT_REG);
-
- /* Override hardware defaults */
-
- putreg32(ILR_EDGESENSITIVE | ILR_PRIORITY, ILR_IRQ2_REG);
- putreg32(ILR_EDGESENSITIVE | ILR_PRIORITY, ILR_IRQ4_REG);
- putreg32(ILR_PRIORITY, ILR_IRQ6_REG);
- putreg32(ILR_EDGESENSITIVE | ILR_PRIORITY, ILR_IRQ15_REG);
-
- /* Initialize hardware interrupt vectors */
-
- up_vectorinitialize();
- current_regs = NULL;
-
- /* And finally, enable interrupts */
-
-#ifndef CONFIG_SUPPRESS_INTERRUPTS
- irqrestore(SVC_MODE | F_BIT);
-#endif
-}
-
-/************************************************************
- * Name: up_disable_irq
- *
- * Description:
- * Disable the IRQ specified by 'irq'
- *
- ************************************************************/
-
-void up_disable_irq(int irq)
-{
- if ((unsigned)irq < NR_IRQS)
- {
- uint32 reg = getreg32(MASK_IT_REG);
- putreg32(reg | (1 << irq), MASK_IT_REG);
- }
-}
-
-/************************************************************
- * Name: up_enable_irq
- *
- * Description:
- * Enable the IRQ specified by 'irq'
- *
- ************************************************************/
-
-void up_enable_irq(int irq)
-{
- if ((unsigned)irq < NR_IRQS)
- {
- uint32 reg = getreg32(MASK_IT_REG);
- putreg32(reg & ~(1 << irq), MASK_IT_REG);
- }
-}
-
-/************************************************************
- * Name: up_maskack_irq
- *
- * Description:
- * Mask the IRQ and acknowledge it
- *
- ************************************************************/
-
-void up_maskack_irq(int irq)
-{
- uint32 reg = getreg32(INT_CTRL_REG);
-
- /* Mask the interrupt */
-
- reg = getreg32(MASK_IT_REG);
- putreg32(reg | (1 << irq), MASK_IT_REG);
-
- /* Set the NEW_IRQ_AGR bit. This clears the IRQ src register
- * enables generation of a new IRQ.
- */
-
- reg = getreg32(INT_CTRL_REG);
- putreg32(reg | 0x00000001, INT_CTRL_REG); /* write the NEW_IRQ_AGR bit. */
-}