#ifndef __UART_H__
#define __UART_H__
#define UART0_BASE ( 0x38028000UL ) /* MCom02 - UART 0 */
#define UART1_BASE ( 0x38029000UL ) /* MCom02 - UART 1 */
#define UART2_BASE ( 0x3802a000UL ) /* MCom02 - UART 2 */
#define UART3_BASE ( 0x3802b000UL ) /* MCom02 - UART 3 */
#define UART_RBR(x) ( (unsigned long *) ( (x) + 0x0000UL ) ) /* Register */
#define UART_THR(x) ( (unsigned long *) ( (x) + 0x0000UL ) ) /* Register */
#define UART_DLL(x) ( (unsigned long *) ( (x) + 0x0000UL ) ) /* Register */
#define UART_DLH(x) ( (unsigned long *) ( (x) + 0x0004UL ) ) /* Register */
#define UART_IER(x) ( (unsigned long *) ( (x) + 0x0004UL ) ) /* Register */
#define UART_IIR(x) ( (unsigned long *) ( (x) + 0x0008UL ) ) /* Register */
#define UART_FCR(x) ( (unsigned long *) ( (x) + 0x0008UL ) ) /* Register */
#define UART_LCR(x) ( (unsigned long *) ( (x) + 0x000CUL ) ) /* Register */
#define UART_MCR(x) ( (unsigned long *) ( (x) + 0x0010UL ) ) /* Register */
#define UART_LSR(x) ( (unsigned long *) ( (x) + 0x0014UL ) ) /* Register */
#define UART_MSR(x) ( (unsigned long *) ( (x) + 0x0018UL ) ) /* Register */
#define UART_SCR(x) ( (unsigned long *) ( (x) + 0x001CUL ) ) /* Register */
#define UART_SRBR(x) ( (unsigned long *) ( (x) + 0x0030UL ) ) /* Register */
#define UART_STHR(x) ( (unsigned long *) ( (x) + 0x0030UL ) ) /* Register */
#define UART_USR(x) ( (unsigned long *) ( (x) + 0x007CUL ) ) /* Register */
#define UART_TFL(x) ( (unsigned long *) ( (x) + 0x0080UL ) ) /* Register */
#define UART_RFL(x) ( (unsigned long *) ( (x) + 0x0084UL ) ) /* Register */
#define UART_SRR(x) ( (unsigned long *) ( (x) + 0x0088UL ) ) /* Register */
#define UART_SRTS(x) ( (unsigned long *) ( (x) + 0x008CUL ) ) /* Register */
#define UART_SBCR(x) ( (unsigned long *) ( (x) + 0x0080UL ) ) /* Register */
#define UART_SFE(x) ( (unsigned long *) ( (x) + 0x0098UL ) ) /* Register */
#define UART_SRT(x) ( (unsigned long *) ( (x) + 0x009CUL ) ) /* Register */
#define UART_STET(x) ( (unsigned long *) ( (x) + 0x00A0UL ) ) /* Register */
#define UART_HTX(x) ( (unsigned long *) ( (x) + 0x00A4UL ) ) /* Register */
/* IER register fields */
#define UART_IER_ERBFI_ENABLE ( 1 << 0 )
#define UART_IER_ETBEI_ENABLE ( 1 << 1 )
#define UART_IER_ELSI_ENABLE ( 1 << 2 )
#define UART_IER_EDSSI_ENABLE ( 1 << 3 )
#define UART_IER_PITME_ENABLE ( 1 << 7 )
/* IIR register fields */
#define UART_IIR_INTERRUPT_STATUS_MODEM ( 0 << 0 )
#define UART_IIR_INTERRUPT_STATUS_EMPTYQ ( 1 << 0 )
#define UART_IIR_INTERRUPT_STATUS_THR ( 2 << 0 )
#define UART_IIR_INTERRUPT_STATUS_TX ( 8 << 0 )
#define UART_IIR_TIMEOUT_STATUS_MASK ( 12 << 0 )
#define UART_IIR_FIFO_ENABLE_STATUS_MASK ( 3 << 6 )
/* FCR register fields */
#define UART_FCR_RFTL_STATE_IDX ( 6 )
#define UART_FCR_RFTL_STATE ( 3 << 6 )
#define UART_FCR_TET_STATE_IDX ( 4 )
#define UART_FCR_TET_STATE ( 3 << 4 )
#define UART_FCR_RESET_TX_FLAG ( 1 << 2 )
#define UART_FCR_RESET_RX_FLAG ( 1 << 1 )
#define UART_FCR_FEWO ( 1 << 0 )
/* LCR register fields */
#define UART_LCR_DLAB ( 1 << 7 )
#define UART_LCR_BC ( 1 << 6 )
#define UART_LCR_STP ( 1 << 5 )
#define UART_LCR_EPS ( 1 << 4 )
#define UART_LCR_PEN ( 1 << 3 )
#define UART_LCR_STOP ( 1 << 2 )
#define UART_LCR_DLS ( 3 << 0 )
/* MCR register fields */
#define UART_MCR_AFCE ( 1 << 5 )
#define UART_MCR_RTS ( 1 << 1 )
/* LSR register fields */
#define UART_LSR_EIRF ( 1 << 7 )
#define UART_LSR_TEMT ( 1 << 6 )
#define UART_LSR_THRE ( 1 << 5 )
#define UART_LSR_BI ( 1 << 4 )
#define UART_LSR_FE ( 1 << 3 )
#define UART_LSR_PE ( 1 << 2 )
#define UART_LSR_OE ( 1 << 1 )
#define UART_LSR_RDR ( 1 << 0 )
/* MSR register fields */
#define UART_MSR_CTS ( 1 << 4 )
#define UART_MSR_DCTS ( 1 << 0 )
/* USR register fields */
#define UART_LSR_RFF ( 1 << 4 )
#define UART_LSR_RFNE ( 1 << 3 )
#define UART_LSR_TFE ( 1 << 2 )
#define UART_LSR_TFNF ( 1 << 1 )
#define UART_LSR_BUSY ( 1 << 0 )
/* SRR register fields */
#define UART_SRR_XFR ( 1 << 2 )
#define UART_SRR_RFR ( 1 << 1 )
#define UART_SRR_UR ( 1 << 0 )
/* SRTS register fields */
#define UART_SRTS_SRTS ( 1 << 0 )
/* SBCR register fields */
#define UART_SBCR_SBCR ( 1 << 0 )
/* SFE register fields */
#define UART_SFE_SBCR ( 1 << 0 )
/* SRT register fields */
#define UART_SRT_SBCR ( 1 << 0 )
/* STET register fields */
#define UART_STET_SBCR ( 1 << 0 )
/* HTX register fields */
#define UART_HTX_HTX ( 1 << 0 )
#define UART_CLK_HZ ( 216000000UL )
#define UART0_VECTOR_ID ( 32 )
#define UART_FIFO_SIZE_BYTES ( 32UL )
#define UART1_VECTOR_ID ( 33 )
#define UART2_VECTOR_ID ( 34 )
#define UART3_VECTOR_ID ( 35 )
#define TX_QUEUE ( 0 )
#define RX_QUEUE ( 1 )
#define min(a,b) ((a)<(b))?(a):(b)
unsigned get_l3comm_freq(void);
unsigned get_cpu_clock(void);
//
// @name: uart_config
// @description: Setup uart port to transfer at given speed and frequency
//
// @in unsigned int khz - frequency
// @in unsigned long baud - data transfer speed
//
void uart_config(unsigned int id, unsigned int khz, unsigned long baud);
//
// @name: uart_putchar
// @description: Send symbol
//
// @in short c -
//
void uart_putchar (unsigned int id, short c);
//
// @name: uart_getchar
// @description: Wait for the byte to be received and return it.
// @return: unsigned short - received symbol
//
unsigned short uart_getchar (unsigned int id);
// Function: uart_puts
// Sends buffer to uart port
//
// Parameters: const char* str - string
//
int uart_puts(unsigned int id, const char* str);
#endif