Add C linkage declaration for C++ usage

include/libopencm3/lpc43xx/gpio.h

@@ -153,8 +153,12 @@
 
 //TODO interrupts
 
+BEGIN_DECLS
+
 void gpio_set(u32 gpioport, u32 gpios);
 void gpio_clear(u32 gpioport, u32 gpios);
 void gpio_toggle(u32 gpioport, u32 gpios);
 
+END_DECLS
+
 #endif

include/libopencm3/lpc43xx/i2c.h

@@ -133,10 +133,14 @@
 
 /* --- I2C funtion prototypes----------------------------------------------- */
 
+BEGIN_DECLS
+
 void i2c0_init(void);
 void i2c0_tx_start(void);
 void i2c0_tx_byte(u8 byte);
 u8 i2c0_rx_byte(void);
 void i2c0_stop(void);
 
+END_DECLS
+
 #endif

include/libopencm3/lpc43xx/nvic.h

@@ -134,6 +134,8 @@
 
 /* --- NVIC functions ------------------------------------------------------ */
 
+BEGIN_DECLS
+
 void nvic_enable_irq(u8 irqn);
 void nvic_disable_irq(u8 irqn);
 u8 nvic_get_pending_irq(u8 irqn);
@@ -144,4 +146,6 @@ u8 nvic_get_irq_enabled(u8 irqn);
 void nvic_set_priority(u8 irqn, u8 priority);
 void nvic_generate_software_interrupt(u8 irqn);
 
+END_DECLS
+
 #endif

include/libopencm3/lpc43xx/scu.h

@@ -725,6 +725,10 @@ typedef enum {
 #define SCU_UART_RX_TX  (SCU_CONF_EPUN_DIS_PULLUP | SCU_CONF_EPD_EN_PULLDOWN  | SCU_CONF_EZI_EN_IN_BUFFER)
 #define SCU_SSP_IO      (SCU_CONF_EPUN_DIS_PULLUP | SCU_CONF_EHS_FAST | SCU_CONF_EZI_EN_IN_BUFFER  | SCU_CONF_ZIF_DIS_IN_GLITCH_FILT)
 
+BEGIN_DECLS
+
 void scu_pinmux(scu_grp_pin_t group_pin, u32 scu_conf);
 
+END_DECLS
+
 #endif

include/libopencm3/lpc43xx/ssp.h

@@ -157,6 +157,8 @@ typedef enum {
 	SSP_SLAVE_OUT_DISABLE = BIT3
 } ssp_slave_option_t; /* This option is relevant only in slave mode */
 
+BEGIN_DECLS
+
 void ssp_disable(ssp_num_t ssp_num);
 
 /* 
@@ -178,4 +180,6 @@ u16 ssp_read(ssp_num_t ssp_num);
 
 void ssp_write(ssp_num_t ssp_num, u16 data);
 
+END_DECLS
+
 #endif

include/libopencm3/lpc43xx/systick.h

@@ -70,6 +70,8 @@
 
 /* --- Function Prototypes ------------------------------------------------- */
 
+BEGIN_DECLS
+
 void systick_set_reload(u32 value);
 u32 systick_get_value(void);
 void systick_set_clocksource(u8 clocksource);
@@ -81,4 +83,6 @@ u8 systick_get_countflag(void);
 
 u32 systick_get_calib(void);
 
+END_DECLS
+
 #endif