diff options
Diffstat (limited to 'arch/avr32/include/asm/arch-common/portmux-gpio.h')
-rw-r--r-- | arch/avr32/include/asm/arch-common/portmux-gpio.h | 98 |
1 files changed, 0 insertions, 98 deletions
diff --git a/arch/avr32/include/asm/arch-common/portmux-gpio.h b/arch/avr32/include/asm/arch-common/portmux-gpio.h deleted file mode 100644 index fb01a17fc17..00000000000 --- a/arch/avr32/include/asm/arch-common/portmux-gpio.h +++ /dev/null @@ -1,98 +0,0 @@ -/* - * Copyright (C) 2008 Atmel Corporation - * - * SPDX-License-Identifier: GPL-2.0+ - */ -#ifndef __AVR32_PORTMUX_GPIO_H__ -#define __AVR32_PORTMUX_GPIO_H__ - -#include <asm/io.h> - -/* Register layout for this specific device */ -#include <asm/arch/gpio-impl.h> - -/* Register access macros */ -#define gpio_readl(port, reg) \ - __raw_readl(&((struct gpio_regs *)port)->reg) -#define gpio_writel(gpio, reg, value) \ - __raw_writel(value, &((struct gpio_regs *)port)->reg) - -/* Portmux API starts here. See doc/README.AVR32-port-muxing */ - -enum portmux_function { - PORTMUX_FUNC_A, - PORTMUX_FUNC_B, - PORTMUX_FUNC_C, - PORTMUX_FUNC_D, -}; - -#define PORTMUX_DIR_INPUT (0 << 0) -#define PORTMUX_DIR_OUTPUT (1 << 0) -#define PORTMUX_INIT_LOW (0 << 1) -#define PORTMUX_INIT_HIGH (1 << 1) -#define PORTMUX_PULL_UP (1 << 2) -#define PORTMUX_PULL_DOWN (2 << 2) -#define PORTMUX_BUSKEEPER (3 << 2) -#define PORTMUX_DRIVE_MIN (0 << 4) -#define PORTMUX_DRIVE_LOW (1 << 4) -#define PORTMUX_DRIVE_HIGH (2 << 4) -#define PORTMUX_DRIVE_MAX (3 << 4) -#define PORTMUX_OPEN_DRAIN (1 << 6) - -void portmux_select_peripheral(void *port, unsigned long pin_mask, - enum portmux_function func, unsigned long flags); -void portmux_select_gpio(void *port, unsigned long pin_mask, - unsigned long flags); - -/* Internal helper functions */ - -static inline void *gpio_pin_to_port(unsigned int pin) -{ - return (void *)GPIO_BASE + (pin >> 5) * 0x200; -} - -static inline void __gpio_set_output_value(void *port, unsigned int pin, - int value) -{ - if (value) - gpio_writel(port, OVRS, 1 << pin); - else - gpio_writel(port, OVRC, 1 << pin); -} - -static inline int __gpio_get_input_value(void *port, unsigned int pin) -{ - return (gpio_readl(port, PVR) >> pin) & 1; -} - -void gpio_set_output_value(unsigned int pin, int value); -int gpio_get_input_value(unsigned int pin); - -/* GPIO API starts here */ - -/* - * GCC doesn't realize that the constant case is extremely trivial, - * so we need to help it make the right decision by using - * always_inline. - */ -__attribute__((always_inline)) -static inline void gpio_set_value(unsigned int pin, int value) -{ - if (__builtin_constant_p(pin)) - __gpio_set_output_value(gpio_pin_to_port(pin), - pin & 0x1f, value); - else - gpio_set_output_value(pin, value); -} - -__attribute__((always_inline)) -static inline int gpio_get_value(unsigned int pin) -{ - if (__builtin_constant_p(pin)) - return __gpio_get_input_value(gpio_pin_to_port(pin), - pin & 0x1f); - else - return gpio_get_input_value(pin); -} - -#endif /* __AVR32_PORTMUX_GPIO_H__ */ |