918a06a12a
The current pinctrl functions were a mess. Normalise the functions names to make them shorter and clearer. Change-Id: Iac6ff84625ef2b7610268e3a5802dc0088de3167
116 lines
3.5 KiB
C
116 lines
3.5 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 "string.h"
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#include "pinctrl-imx233.h"
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#ifdef IMX233_PINCTRL_DEBUG
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// 4 banks of 32 pins
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static const char *pin_use[4][32];
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void imx233_pinctrl_acquire(unsigned bank, unsigned pin, const char *name)
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{
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if(pin_use[bank][pin] != NULL && pin_use[bank][pin] != name)
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panicf("acquire B%dP%02d for %s, was %s!", bank, pin, name, pin_use[bank][pin]);
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pin_use[bank][pin] = name;
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}
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void imx233_pinctrl_acquire_mask(unsigned bank, uint32_t mask, const char *name)
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{
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for(unsigned pin = 0; pin < 32; pin++)
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if(mask & (1 << pin))
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imx233_pinctrl_acquire(bank, pin, name);
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}
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void imx233_pinctrl_release(unsigned bank, unsigned pin, const char *name)
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{
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if(pin_use[bank][pin] != NULL && pin_use[bank][pin] != name)
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panicf("release B%dP%02d for %s: was %s!", bank, pin, name, pin_use[bank][pin]);
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pin_use[bank][pin] = NULL;
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}
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void imx233_pinctrl_release_mask(unsigned bank, uint32_t mask, const char *name)
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{
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for(unsigned pin = 0; pin < 32; pin++)
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if(mask & (1 << pin))
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imx233_pinctrl_release(bank, pin, name);
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}
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const char *imx233_pinctrl_blame(unsigned bank, unsigned pin)
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{
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return pin_use[bank][pin];
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}
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#endif
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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_IRQSTATn(bank) & HW_PINCTRL_IRQENn(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_pinctrl_setup_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_pinctrl_setup_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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HW_PINCTRL_PIN2IRQn_CLR(bank) = 1 << pin;
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HW_PINCTRL_IRQENn_CLR(bank) = 1 << pin;
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HW_PINCTRL_IRQSTATn_CLR(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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HW_PINCTRL_IRQLEVELn_SET(bank) = 1 << pin;
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else
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HW_PINCTRL_IRQLEVELn_CLR(bank) = 1 << pin;
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if(polarity)
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HW_PINCTRL_IRQPOLn_SET(bank) = 1 << pin;
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else
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HW_PINCTRL_IRQPOLn_CLR(bank) = 1 << pin;
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HW_PINCTRL_PIN2IRQn_SET(bank) = 1 << pin;
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HW_PINCTRL_IRQENn_SET(bank) = 1 << pin;
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imx233_icoll_enable_interrupt(INT_SRC_GPIO(bank), true);
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}
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}
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