1.[bsp][sam9260] Modify the define of irq get and ack function.
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ardafu
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a13132b302
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cc6b290640
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@ -146,7 +146,7 @@ void at91_aic_init(rt_uint32_t *priority)
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*/
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for (i = 0; i < AIC_IRQS; i++) {
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/* Put irq number in Source Vector Register: */
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at91_sys_write(AT91_AIC_SVR(i), i);
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at91_sys_write(AT91_AIC_SVR(i), i); // no-used
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/* Active Low interrupt, with the specified priority */
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at91_sys_write(AT91_AIC_SMR(i), AT91_AIC_SRCTYPE_LOW | priority[i]);
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//AT91_AIC_SRCTYPE_FALLING
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@ -201,12 +201,11 @@ static void at91_gpio_irq_init()
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*/
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void rt_hw_interrupt_init(void)
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{
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rt_int32_t i;
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register rt_uint32_t idx;
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rt_uint32_t *priority = at91sam9260_default_irq_priority;
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at91_extern_irq = (1 << AT91SAM9260_ID_IRQ0) | (1 << AT91SAM9260_ID_IRQ1)
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| (1 << AT91SAM9260_ID_IRQ2);
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at91_extern_irq = (1UL << AT91SAM9260_ID_IRQ0) | (1UL << AT91SAM9260_ID_IRQ1)
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| (1UL << AT91SAM9260_ID_IRQ2);
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/* Initialize the AIC interrupt controller */
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at91_aic_init(priority);
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@ -341,7 +340,7 @@ rt_isr_handler_t rt_hw_interrupt_install(int vector, rt_isr_handler_t handler,
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/*@}*/
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/*
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static int at91_aic_set_type(unsigned irq, unsigned type)
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{
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unsigned int smr, srctype;
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@ -354,13 +353,15 @@ static int at91_aic_set_type(unsigned irq, unsigned type)
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srctype = AT91_AIC_SRCTYPE_RISING;
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break;
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case IRQ_TYPE_LEVEL_LOW:
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if ((irq == AT91_ID_FIQ) || is_extern_irq(irq)) /* only supported on external interrupts */
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// only supported on external interrupts
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if ((irq == AT91_ID_FIQ) || is_extern_irq(irq))
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srctype = AT91_AIC_SRCTYPE_LOW;
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else
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return -1;
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break;
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case IRQ_TYPE_EDGE_FALLING:
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if ((irq == AT91_ID_FIQ) || is_extern_irq(irq)) /* only supported on external interrupts */
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// only supported on external interrupts
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if ((irq == AT91_ID_FIQ) || is_extern_irq(irq))
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srctype = AT91_AIC_SRCTYPE_FALLING;
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else
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return -1;
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@ -373,54 +374,36 @@ static int at91_aic_set_type(unsigned irq, unsigned type)
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at91_sys_write(AT91_AIC_SMR(irq), smr | srctype);
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return 0;
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}
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rt_uint32_t rt_hw_interrupt_get_active(rt_uint32_t fiq_irq, rt_uint32_t* id)
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*/
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rt_uint32_t rt_hw_interrupt_get_active(rt_uint32_t fiq_irq)
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{
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rt_uint32_t irqstat;
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//volatile rt_uint32_t irqstat;
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rt_uint32_t id;
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if (fiq_irq == INT_FIQ)
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{
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*id = 0;
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}
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else //IRQ
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{
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/* get irq number */
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*id = (rt_uint32_t)at91_sys_read(AT91_AIC_IVR);
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/* clear pending register */
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irqstat = (rt_uint32_t)at91_sys_read(AT91_AIC_ISR);
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}
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return 0;
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return irqstat;
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//IRQ
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/* AIC need this dummy read */
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at91_sys_read(AT91_AIC_IVR);
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/* clear pending register */
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id = at91_sys_read(AT91_AIC_ISR);
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return id;
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}
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void rt_hw_interrupt_ack(rt_uint32_t fiq_irq)
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void rt_hw_interrupt_ack(rt_uint32_t fiq_irq, rt_uint32_t id)
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{
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/* new FIQ generation */
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if (fiq_irq == INT_FIQ)
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{
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/* new FIQ generation */
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return;
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}
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else
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{
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// EIOCR must be write any value after interrupt,
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/* new IRQ generation */
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// EIOCR must be write any value after interrupt,
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// or else can't response next interrupt
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/* new IRQ generation */
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at91_sys_write(AT91_AIC_EOICR, 0x55555555);
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}
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at91_sys_write(AT91_AIC_EOICR, 0x0);
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}
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#ifdef RT_USING_FINSH
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void list_irq(void)
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{
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@ -1,17 +1,26 @@
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/*
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* File : interrupt.h
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* This file is part of RT-Thread RTOS
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* COPYRIGHT (C) 2011, RT-Thread Development Team
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* COPYRIGHT (C) 2006 - 2015, RT-Thread Development Team
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rt-thread.org/license/LICENSE
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* This program 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 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Change Logs:
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* Date Author Notes
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* 2013-07-06 Bernard first version
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* 2015-04-14 ArdaFu first version
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*/
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#ifndef __INTERRUPT_H__
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#define __INTERRUPT_H__
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@ -19,7 +28,4 @@
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#define INT_FIQ 0x01
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rt_uint32_t rt_hw_interrupt_get_active(rt_uint32_t fiq_irq, rt_uint32_t* id);
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void rt_hw_interrupt_ack(rt_uint32_t fiq_irq);
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#endif
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