ao_i2c_init(void);
/* ao_serial_stm.c */
+
+#if USE_SERIAL_1_FLOW && USE_SERIAL_1_SW_FLOW || USE_SERIAL_2_FLOW && USE_SERIAL_2_SW_FLOW
+#define HAS_SERIAL_SW_FLOW 1
+#else
+#define HAS_SERIAL_SW_FLOW 0
+#endif
+
+#if USE_SERIAL_2_FLOW && !USE_SERIAL_2_SW_FLOW
+#define USE_SERIAL_2_HW_FLOW 1
+#endif
+
+#if USE_SERIAL_1_FLOW && !USE_SERIAL_1_SW_FLOW
+#define USE_SERIAL_1_HW_FLOW 1
+#endif
+
+#if USE_SERIAL_1_HW_FLOW || USE_SERIAL_2_HW_FLOW
+#define HAS_SERIAL_HW_FLOW 1
+#else
+#define HAS_SERIAL_HW_FLOW 0
+#endif
+
struct ao_stm_usart {
struct ao_fifo rx_fifo;
struct ao_fifo tx_fifo;
/* ao_usb_stm.c */
#if AO_USB_DIRECTIO
-uint16_t *
-ao_usb_alloc(void);
+uint8_t
+ao_usb_alloc(uint16_t *buffers[2]);
-void
-ao_usb_write(uint16_t *buffer, uint16_t len);
+uint8_t
+ao_usb_alloc2(uint16_t *buffers[2]);
-void
-ao_usb_write2(uint16_t *buffer, uint16_t len);
+uint8_t
+ao_usb_write(uint16_t len);
+
+uint8_t
+ao_usb_write2(uint16_t len);
#endif /* AO_USB_DIRECTIO */
#endif /* _AO_ARCH_FUNCS_H_ */