nes-proj/cpu/mc1322x/lib/gpio.c

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/*
* Copyright (c) 2010, Mariano Alvira <mar@devl.org> and other contributors
* to the MC1322x project (http://mc1322x.devl.org)
* All rights reserved.
*
* 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 of the Institute 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 INSTITUTE 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 INSTITUTE 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.
*
* This file is part of libmc1322x: see http://mc1322x.devl.org
* for details.
*
* $Id: gpio.c,v 1.2 2010/11/10 22:06:28 maralvira Exp $
*/
#include <mc1322x.h>
#include <stdint.h>
inline void gpio_pad_dir(volatile uint64_t data)
{
*GPIO_PAD_DIR0 = (data & 0xffffffff);
*GPIO_PAD_DIR1 = (data >> 32);
}
inline void gpio_data(volatile uint64_t data)
{
*GPIO_DATA0 = (data & 0xffffffff);
*GPIO_DATA1 = (data >> 32);
}
inline uint64_t gpio_data_get(volatile uint64_t bits) {
uint64_t rdata = 0;
rdata = *GPIO_DATA0 & (bits & 0xffffffff);
rdata |= (*GPIO_DATA1 & (bits >> 32)) << 32;
return rdata;
}
inline void gpio_pad_pu_en(volatile uint64_t data)
{
*GPIO_PAD_PU_EN0 = (data & 0xffffffff);
*GPIO_PAD_PU_EN1 = (data >> 32);
}
inline void gpio_data_sel(volatile uint64_t data)
{
*GPIO_DATA_SEL0 = (data & 0xffffffff);
*GPIO_DATA_SEL1 = (data >> 32);
}
inline void gpio_pad_pu_sel(volatile uint64_t data)
{
*GPIO_PAD_PU_SEL0 = (data & 0xffffffff);
*GPIO_PAD_PU_SEL1 = (data >> 32);
}
inline void gpio_data_set(volatile uint64_t data)
{
*GPIO_DATA_SET0 = (data & 0xffffffff);
*GPIO_DATA_SET1 = (data >> 32);
}
inline void gpio_data_reset(volatile uint64_t data)
{
*GPIO_DATA_RESET0 = (data & 0xffffffff);
*GPIO_DATA_RESET1 = (data >> 32);
}
inline void gpio_pad_dir_set(volatile uint64_t data)
{
*GPIO_PAD_DIR_SET0 = (data & 0xffffffff);
*GPIO_PAD_DIR_SET1 = (data >> 32);
}
inline void gpio_pad_dir_reset(volatile uint64_t data)
{
*GPIO_PAD_DIR_RESET0 = (data & 0xffffffff);
*GPIO_PAD_DIR_RESET1 = (data >> 32);
}