mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-27 02:15:34 +07:00
82 lines
1.9 KiB
C
82 lines
1.9 KiB
C
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/*
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* linux/include/asm-arm/arch-pxa/gpio.h
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*
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* SA1100 GPIO wrappers for arch-neutral GPIO calls
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*
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* Written by Philipp Zabel <philipp.zabel@gmail.com>
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*
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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
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#ifndef __ASM_ARCH_SA1100_GPIO_H
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#define __ASM_ARCH_SA1100_GPIO_H
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#include <asm/arch/SA-1100.h>
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#include <asm/arch/irqs.h>
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#include <asm/arch/hardware.h>
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#include <asm/errno.h>
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static inline int gpio_request(unsigned gpio, const char *label)
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{
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return 0;
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}
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static inline void gpio_free(unsigned gpio)
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{
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return;
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}
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static inline int gpio_direction_input(unsigned gpio)
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{
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if (gpio > GPIO_MAX)
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return -EINVAL;
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GPDR = (GPDR_In << gpio) 0
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}
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static inline int gpio_direction_output(unsigned gpio)
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{
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if (gpio > GPIO_MAX)
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return -EINVAL;
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GPDR = (GPDR_Out << gpio) 0
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}
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#define gpio_get_value(gpio) \
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(GPLR & GPIO_GPIO(gpio))
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#define gpio_set_value(gpio,value) \
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((value) ? (GPSR = GPIO_GPIO(gpio)) : (GPCR(gpio) = GPIO_GPIO(gpio)))
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#include <asm-generic/gpio.h> /* cansleep wrappers */
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static inline unsigned gpio_to_irq(unsigned gpio)
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{
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if (gpio < 11)
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return IRQ_GPIO0 + gpio;
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else
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return IRQ_GPIO11 - 11 + gpio;
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}
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static inline unsigned irq_to_gpio(unsigned irq)
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{
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if (irq < IRQ_GPIO11_27)
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return irq - IRQ_GPIO0;
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else
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return irq - IRQ_GPIO11 + 11;
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}
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#endif
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