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#ifndef _UART_H_
#define _UART_H_
#define NULL ((void*)0)
#define CCM_UART_PORT_OFFSET 16
#define CCM_UART_ADDR_OFFSET 0x400
typedef struct serial_hw
{
volatile unsigned int rbr; /* 0 */
volatile unsigned int ier; /* 1 */
volatile unsigned int fcr; /* 2 */
volatile unsigned int lcr; /* 3 */
volatile unsigned int mcr; /* 4 */
volatile unsigned int lsr; /* 5 */
volatile unsigned int msr; /* 6 */
volatile unsigned int sch; /* 7 */
}serial_hw_t;
#define UART_BAUD 115200 // Baud rate for UART
// Compute the divisor factor
// UART Line Control Parameter
#define PARITY 0 // Parity: 0,2 - no parity; 1 - odd parity; 3 - even parity
#define STOP 0 // Number of Stop Bit: 0 - 1bit; 1 - 2(or 1.5)bits
#define DLEN 3 // Data Length: 0 - 5bits; 1 - 6bits; 2 - 7bits; 3 - 8bits
#if DEBUG
void sunxi_serial_init(int uart_port, void *gpio_cfg, int gpio_max);
void sunxi_serial_exit(void);
void sunxi_serial_putc (char c);
char sunxi_serial_getc (void);
int sunxi_serial_tstc (void);
#else
static inline void sunxi_serial_init(int uart_port, void *gpio_cfg, int gpio_max) {}
static inline void sunxi_serial_exit(void) {}
static inline void sunxi_serial_putc(char c) {}
static inline char sunxi_serial_getc(void) { return 0;}
static inline int sunxi_serial_tstc(void) { return 0;}
#endif
#endif /* #ifndef _UART_H_ */
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