85c32dbd12
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30195 a1c6a512-1295-4272-9138-f99709370657
77 lines
2.4 KiB
C
77 lines
2.4 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2011 by Amaury Pouly
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include "system.h"
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#include "system-target.h"
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#include "cpu.h"
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#include "pinctrl-imx233.h"
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static pin_irq_cb_t pin_cb[3][32]; /* 3 banks, 32 pins/bank */
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static void INT_GPIO(int bank)
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{
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uint32_t fire = HW_PINCTRL_IRQSTAT(bank) & HW_PINCTRL_IRQEN(bank);
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for(int pin = 0; pin < 32; pin++)
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if(fire & (1 << pin))
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{
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pin_irq_cb_t cb = pin_cb[bank][pin];
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imx233_setup_pin_irq(bank, pin, false, false, false, NULL);
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if(cb)
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cb(bank, pin);
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}
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}
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void INT_GPIO0(void)
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{
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INT_GPIO(0);
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}
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void INT_GPIO1(void)
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{
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INT_GPIO(1);
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}
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void INT_GPIO2(void)
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{
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INT_GPIO(2);
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}
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void imx233_setup_pin_irq(int bank, int pin, bool enable_int,
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bool level, bool polarity, pin_irq_cb_t cb)
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{
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__REG_CLR(HW_PINCTRL_PIN2IRQ(bank)) = 1 << pin;
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__REG_CLR(HW_PINCTRL_IRQEN(bank)) = 1 << pin;
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__REG_CLR(HW_PINCTRL_IRQSTAT(bank))= 1 << pin;
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pin_cb[bank][pin] = cb;
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if(enable_int)
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{
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if(level)
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__REG_SET(HW_PINCTRL_IRQLEVEL(bank)) = 1 << pin;
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else
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__REG_CLR(HW_PINCTRL_IRQLEVEL(bank)) = 1 << pin;
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if(polarity)
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__REG_SET(HW_PINCTRL_IRQPOL(bank)) = 1 << pin;
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else
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__REG_CLR(HW_PINCTRL_IRQPOL(bank)) = 1 << pin;
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__REG_SET(HW_PINCTRL_PIN2IRQ(bank)) = 1 << pin;
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__REG_SET(HW_PINCTRL_IRQEN(bank)) = 1 << pin;
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imx233_enable_interrupt(INT_SRC_GPIO(bank), true);
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}
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}
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