107 lines
3.3 KiB
C
107 lines
3.3 KiB
C
/***************************************************************************
|
|
* __________ __ ___.
|
|
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
|
|
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
|
|
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
|
|
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
|
|
* \/ \/ \/ \/ \/
|
|
* $Id$
|
|
*
|
|
* Copyright (C) 2011 by Amaury Pouly
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version 2
|
|
* of the License, or (at your option) any later version.
|
|
*
|
|
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
|
* KIND, either express or implied.
|
|
*
|
|
****************************************************************************/
|
|
#include "system.h"
|
|
#include "system-target.h"
|
|
#include "cpu.h"
|
|
#include "string.h"
|
|
#include "pinctrl-imx233.h"
|
|
|
|
#ifdef IMX233_PINCTRL_DEBUG
|
|
// 4 banks of 32 pins
|
|
static const char *pin_use[4][32];
|
|
|
|
void imx233_pinctrl_acquire(unsigned bank, unsigned pin, const char *name)
|
|
{
|
|
if(pin_use[bank][pin] != NULL && pin_use[bank][pin] != name)
|
|
panicf("acquire B%dP%02d for %s, was %s!", bank, pin, name, pin_use[bank][pin]);
|
|
pin_use[bank][pin] = name;
|
|
}
|
|
|
|
void imx233_pinctrl_release(unsigned bank, unsigned pin, const char *name)
|
|
{
|
|
if(pin_use[bank][pin] != NULL && pin_use[bank][pin] != name)
|
|
panicf("release B%dP%02d for %s: was %s!", bank, pin, name, pin_use[bank][pin]);
|
|
pin_use[bank][pin] = NULL;
|
|
}
|
|
|
|
const char *imx233_pinctrl_blame(unsigned bank, unsigned pin)
|
|
{
|
|
return pin_use[bank][pin];
|
|
}
|
|
#endif
|
|
|
|
static pin_irq_cb_t pin_cb[3][32]; /* 3 banks, 32 pins/bank */
|
|
static intptr_t pin_cb_user[3][32];
|
|
|
|
static void INT_GPIO(int bank)
|
|
{
|
|
uint32_t fire = HW_PINCTRL_IRQSTATn(bank) & HW_PINCTRL_IRQENn(bank);
|
|
for(int pin = 0; pin < 32; pin++)
|
|
if(fire & (1 << pin))
|
|
{
|
|
pin_irq_cb_t cb = pin_cb[bank][pin];
|
|
intptr_t arg = pin_cb_user[bank][pin];
|
|
/* WARNING: this call will modify pin_cb and pin_cb_user, that's
|
|
* why we copy the data before ! */
|
|
imx233_pinctrl_setup_irq(bank, pin, false, false, false, NULL, 0);
|
|
if(cb)
|
|
cb(bank, pin, arg);
|
|
}
|
|
}
|
|
|
|
void INT_GPIO0(void)
|
|
{
|
|
INT_GPIO(0);
|
|
}
|
|
|
|
void INT_GPIO1(void)
|
|
{
|
|
INT_GPIO(1);
|
|
}
|
|
|
|
void INT_GPIO2(void)
|
|
{
|
|
INT_GPIO(2);
|
|
}
|
|
|
|
void imx233_pinctrl_setup_irq(unsigned bank, unsigned pin, bool enable_int,
|
|
bool level, bool polarity, pin_irq_cb_t cb, intptr_t user)
|
|
{
|
|
HW_PINCTRL_PIN2IRQn_CLR(bank) = 1 << pin;
|
|
HW_PINCTRL_IRQENn_CLR(bank) = 1 << pin;
|
|
HW_PINCTRL_IRQSTATn_CLR(bank) = 1 << pin;
|
|
pin_cb[bank][pin] = cb;
|
|
pin_cb_user[bank][pin] = user;
|
|
if(enable_int)
|
|
{
|
|
if(level)
|
|
HW_PINCTRL_IRQLEVELn_SET(bank) = 1 << pin;
|
|
else
|
|
HW_PINCTRL_IRQLEVELn_CLR(bank) = 1 << pin;
|
|
if(polarity)
|
|
HW_PINCTRL_IRQPOLn_SET(bank) = 1 << pin;
|
|
else
|
|
HW_PINCTRL_IRQPOLn_CLR(bank) = 1 << pin;
|
|
HW_PINCTRL_PIN2IRQn_SET(bank) = 1 << pin;
|
|
HW_PINCTRL_IRQENn_SET(bank) = 1 << pin;
|
|
imx233_icoll_enable_interrupt(INT_SRC_GPIO(bank), true);
|
|
}
|
|
}
|