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kernel add
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/*
* AT32 portmux interface.
*
* Copyright (C) 2006 Atmel Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __ASM_ARCH_PORTMUX_H__
#define __ASM_ARCH_PORTMUX_H__
/*
* Set up pin multiplexing, called from board init only.
*
* The following flags determine the initial state of the pin.
*/
#define AT32_GPIOF_PULLUP 0x00000001 /* (not-OUT) Enable pull-up */
#define AT32_GPIOF_OUTPUT 0x00000002 /* (OUT) Enable output driver */
#define AT32_GPIOF_HIGH 0x00000004 /* (OUT) Set output high */
#define AT32_GPIOF_DEGLITCH 0x00000008 /* (IN) Filter glitches */
#define AT32_GPIOF_MULTIDRV 0x00000010 /* Enable multidriver option */
void at32_select_periph(unsigned int port, unsigned int pin,
unsigned int periph, unsigned long flags);
void at32_select_gpio(unsigned int pin, unsigned long flags);
void at32_deselect_pin(unsigned int pin);
void at32_reserve_pin(unsigned int port, u32 pin_mask);
#endif /* __ASM_ARCH_PORTMUX_H__ */
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