lm3s1968: introduce lm3s_gpioPinRead().

[bertos.git] / bertos / cpu / cortex-m3 / drv / gpio_lm3s.h

diff --git a/bertos/cpu/cortex-m3/drv/gpio_lm3s.h b/bertos/cpu/cortex-m3/drv/gpio_lm3s.h
index 9ff6b56b8bfd36e92c2da5d57314b4598b86a45d..d80c033f0177b98649c3f3e91d68f39021ca596b 100644 (file)
--- a/bertos/cpu/cortex-m3/drv/gpio_lm3s.h
+++ b/bertos/cpu/cortex-m3/drv/gpio_lm3s.h
@@ -82,7 +82,13 @@ enum
 /* Write a value to the specified pin(s) */
 INLINE void lm3s_gpioPinWrite(uint32_t port, uint8_t pins, uint8_t val)
 {
-       HWREG(port + (GPIO_O_DATA + (pins << 2))) = val;
+       HWREG(port + GPIO_O_DATA + (pins << 2)) = val;
+}
+
+/* Read a value from the specified pin(s) */
+INLINE uint32_t lm3s_gpioPinRead(uint32_t port, uint8_t pins)
+{
+       return HWREG(port + GPIO_O_DATA + (pins << 2));
 }
 
 int lm3s_gpioPinConfig(uint32_t port, uint8_t pins,