From a7b3786810ee93c81b65a431c04fd2f5d75354d2 Mon Sep 17 00:00:00 2001 From: Perry Hung Date: Mon, 19 Apr 2010 22:25:49 -0400 Subject: Added libmaple gpio_read_bit --- libmaple/gpio.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'libmaple/gpio.h') diff --git a/libmaple/gpio.h b/libmaple/gpio.h index ac8af5b..a44047e 100644 --- a/libmaple/gpio.h +++ b/libmaple/gpio.h @@ -93,6 +93,10 @@ static inline void gpio_write_bit(GPIO_Port *port, uint8 gpio_pin, uint8 val) { } } +static inline uint32 gpio_read_bit(GPIO_Port *port, uint8 gpio_pin) { + return (port->IDR & BIT(gpio_pin) ? 1 : 0); +} + #ifdef __cplusplus } // extern "C" #endif -- cgit v1.2.3