/usr/src/linux-headers-5.15.0-190/include/linux
Edit: /usr/src/linux-headers-5.15.0-190/include/linux/scx200_gpio.h (2438B)
/* SPDX-License-Identifier: GPL-2.0 */
u32 scx200_gpio_configure(unsigned index, u32 set, u32 clear);
extern unsigned scx200_gpio_base;
extern unsigned long scx200_gpio_shadow[2];
extern struct nsc_gpio_ops scx200_gpio_ops;
#define scx200_gpio_present() (scx200_gpio_base!=0)
/* Definitions to make sure I do the same thing in all functions */
#define __SCx200_GPIO_BANK unsigned bank = index>>5
#define __SCx200_GPIO_IOADDR unsigned short ioaddr = scx200_gpio_base+0x10*bank
#define __SCx200_GPIO_SHADOW unsigned long *shadow = scx200_gpio_shadow+bank
#define __SCx200_GPIO_INDEX index &= 31
#define __SCx200_GPIO_OUT __asm__ __volatile__("outsl":"=mS" (shadow):"d" (ioaddr), "0" (shadow))
/* returns the value of the GPIO pin */
static inline int scx200_gpio_get(unsigned index) {
__SCx200_GPIO_BANK;
__SCx200_GPIO_IOADDR + 0x04;
__SCx200_GPIO_INDEX;
return (inl(ioaddr) & (1<