mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-26 06:04:14 +08:00
1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
47 lines
1.6 KiB
C
47 lines
1.6 KiB
C
#ifndef _ASM_SH_HD64465_GPIO_
|
|
#define _ASM_SH_HD64465_GPIO_ 1
|
|
/*
|
|
* $Id: gpio.h,v 1.3 2003/05/04 19:30:14 lethal Exp $
|
|
*
|
|
* Hitachi HD64465 companion chip: General Purpose IO pins support.
|
|
* This layer enables other device drivers to configure GPIO
|
|
* pins, get and set their values, and register an interrupt
|
|
* routine for when input pins change in hardware.
|
|
*
|
|
* by Greg Banks <gbanks@pocketpenguins.com>
|
|
* (c) 2000 PocketPenguins Inc.
|
|
*/
|
|
#include <asm/hd64465.h>
|
|
|
|
/* Macro to construct a portpin number (used in all
|
|
* subsequent functions) from a port letter and a pin
|
|
* number, e.g. HD64465_GPIO_PORTPIN('A', 5).
|
|
*/
|
|
#define HD64465_GPIO_PORTPIN(port,pin) (((port)-'A')<<3|(pin))
|
|
|
|
/* Pin configuration constants for _configure() */
|
|
#define HD64465_GPIO_FUNCTION2 0 /* use the pin's *other* function */
|
|
#define HD64465_GPIO_OUT 1 /* output */
|
|
#define HD64465_GPIO_IN_PULLUP 2 /* input, pull-up MOS on */
|
|
#define HD64465_GPIO_IN 3 /* input */
|
|
|
|
/* Configure a pin's direction */
|
|
extern void hd64465_gpio_configure(int portpin, int direction);
|
|
|
|
/* Get, set value */
|
|
extern void hd64465_gpio_set_pin(int portpin, unsigned int value);
|
|
extern unsigned int hd64465_gpio_get_pin(int portpin);
|
|
extern void hd64465_gpio_set_port(int port, unsigned int value);
|
|
extern unsigned int hd64465_gpio_get_port(int port);
|
|
|
|
/* mode constants for _register_irq() */
|
|
#define HD64465_GPIO_FALLING 0
|
|
#define HD64465_GPIO_RISING 1
|
|
|
|
/* Interrupt on external value change */
|
|
extern void hd64465_gpio_register_irq(int portpin, int mode,
|
|
void (*handler)(int portpin, void *dev), void *dev);
|
|
extern void hd64465_gpio_unregister_irq(int portpin);
|
|
|
|
#endif /* _ASM_SH_HD64465_GPIO_ */
|