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*******************************************************************************/

#include "config_marvell.h"     /* Required to identify SOC and Board */
#include "soc_spec.h"
#include "bootstrap_os.h"
#if defined(MV88F78X60)
#include "ddr3_axp.h"
#elif defined(MV88F6710)
#include "ddr3_a370.h"
#elif defined(MV88F66XX)
#include "ddr3_alp.h"
#elif defined(MV88F672X)
#include "ddr3_a375.h"
#elif defined(MV88F68XX)
#include "ddr3_a38x.h"
#elif defined(MV88F69XX)
#include "ddr3_a39x.h"
#elif defined(MV_MSYS_BC2)
#include "ddr3_msys_bc2.h"
#elif defined(MV_MSYS_AC3)
#include "ddr3_msys_ac3.h"
#else
#error "No SOC define for uart in binary header."
#endif
#if defined (MV88F68XX)
#include "mvSysEnvLib.h"
#endif

#include "mvUart.h"

extern MV_U32 mvBoardTclkGet(MV_VOID);

/*******************************************************************************
* mvUartInit - Init a uart port.
*
* DESCRIPTION:
*       This routine Initialize one of the uarts ports (channels).
*   It initialize the baudrate, stop bit,parity bit etc.
*
* INPUT:
*       port - uart port number.
*   baudDivisor - baud divisior to use for the uart port.
*
* OUTPUT:
*       None.
*
* RETURN:
*   None.
*
*******************************************************************************/
#if !defined(MV_NO_PRINT)
MV_U32 uartOffset = UART0_REG_OFFSET;
#endif

MV_VOID mvUartInit(void)
{
#if !defined(MV_NO_PRINT)
	MV_U32  tmpTClkRate;
	MV_U32 baudDivisor = 0;

	tmpTClkRate = mvBoardTclkGet();

#if defined (MV88F68XX)
	/* UART1 on DB-AP board is the default UART interface
	 - Update the global Uart interface to use UART1 register offset */
	if( mvBoardIdGet() == DB_AP_68XX_ID)
		uartOffset = UART1_REG_OFFSET;
#endif
	volatile MV_UART_PORT *pUartPort = (volatile MV_UART_PORT *)(INTER_REGS_BASE + uartOffset);
	/*  UART Init */
	switch (tmpTClkRate) {
		case _25MHZ:
			baudDivisor =  13; /* actually 13.5 */
			break;
		case _166MHZ:
			baudDivisor =  90;
			break;
		case _200MHZ:
			baudDivisor = 108;
			break;
		case _250MHZ:
		default:
			baudDivisor =  135;
			break;
	}

	pUartPort->ier = 0x00;
	pUartPort->lcr = LCR_DIVL_EN;           /* Access baud rate */
	pUartPort->dll = baudDivisor & 0xff;    /* 9600 baud */
	pUartPort->dlm = (baudDivisor >> 8) & 0xff;
	pUartPort->lcr = LCR_8N1;               /* 8 data, 1 stop, no parity */

	/* Clear & enable FIFOs */
	pUartPort->fcr = FCR_FIFO_EN | FCR_RXSR | FCR_TXSR;
#endif
	return;
}

/*******************************************************************************
* mvUartPutc - write one character to the UART-0
*
* DESCRIPTION:
*       This routine puts one charachetr on one of the uart ports.
*
* INPUT:
*       port - uart port number.
*   c - character.
*
* OUTPUT:
*       None.
*
* RETURN:
*   None.
*
*******************************************************************************/
MV_VOID mvUartPutc(MV_U8 c)
{
#if !defined(MV_NO_PRINT)
    volatile MV_UART_PORT *pUartPort = (volatile MV_UART_PORT *)(INTER_REGS_BASE + uartOffset);
    while ((pUartPort->lsr & LSR_THRE) == 0) ;
    pUartPort->thr = c;
#endif
    return;
}

/*-----------------------------------------------------------------------------------       */
/* Name:            putstring       */
/*      */
/* Description:     This function writes a string to the serial port.       */
/*      */
/* Input value:     char *str           */
/*      */
/* Return Value:    none            */
/*-----------------------------------------------------------------------------------       */
void putstring(char *str)
{
#if !defined(MV_NO_PRINT)
/* For each character in the string...      */
    while (*str != '\0')
    {

        /* Write it to the serial port  */
        mvUartPutc(*str);
        if (*str == '\n') mvUartPutc('\r');

        str++;
    }
#endif
}

/*-----------------------------------------------------------------------------------   */
/* Name:            putdata */
/*                                                                                      */
/* Description:     This function convert a decimal number into hex character string    */
/*          and put this string into the serial port.   */
/*                                                                                      */
/* Input value:     unit16 dec_num      */
/*                                                                                      */
/* Return Value:    none        */
/*-----------------------------------------------------------------------------------   */
void putdata (u32 dec_num,u32 length)
{
#if !defined(MV_NO_PRINT)
    char str[11];
    u32 i, flag = 0, mod_val;/*, length = 8;*/

    /* Initial the modular value    */
    mod_val = dec_num;
    for (i=length; i > 0; i--)
    {
    /* compute 1 hex number at a time   */
    if (dec_num >= 16)
    {
         mod_val = dec_num & (16 -1);
         dec_num = (dec_num >> 4);

        /*mod_val = dec_num % 16;
        dec_num = dec_num / 16; */
    }
    /* set a flag to indicate the last digit    */
    else
    {
        mod_val = dec_num;
        flag = 1;
        }
    /* convert into ASCII hex number range from 0-9 */
    if (mod_val <= 9)
    {
        str[i-1] = mod_val + 48;
    }
    /* convert into ASCII hex number range from A-F     */
    else
    {
        str[i-1] = mod_val + 55;
    }
    /* indicate the last computed digit, so set the remaining digit to 0    */
    if (flag)
    {
        dec_num = 0;
    }
    }

    /*str[8] = '\n';
    str[9] = '';
    str[10] = '\0';*/
    str[length] = '\0';
    putstring(str);

#endif
}
/*-----------------------------------------------------------------------------------   */
/* Name:            putdataDec  */
/*                                                                                      */
/* Description:     This function prints a decimal number into character string     */
/*          and put this string into the serial port.   */
/*                                                                                      */
/* Input value:     unit16 dec_num      */
/*                                                                                      */
/* Return Value:    none        */
/*-----------------------------------------------------------------------------------   */
void putdataDec (u32 dec_num,u32 length)
{
    char str[11];
    u32 i;/*, length = 8;*/

    for (i=length; i > 0; i--)
    {
        str[i-1] = (dec_num % 10) + '0';
        dec_num = dec_num / 10;
    }
    str[length] = '\0';
    /* replace leading zeroes with blank */
    for (i=0; i < (length-1); i++)
    {
        if ('0' == str[i])
		str[i] = ' ';
	else
		break;
    }
    putstring(str);
}
/*******************************************************************************
* mvUartGetc - Read one character from the UART
*
* DESCRIPTION:
*       This routine gets one charachetr from one of the uart ports.
*
* INPUT:
*       port - uart port number.
*
* OUTPUT:
*       None.
*
* RETURN:
*   carachter from the uart port.
*
*******************************************************************************/
MV_U8   mvUartGetc()
{
#if !defined(MV_NO_INPUT)
	 volatile MV_UART_PORT *pUartPort = (volatile MV_UART_PORT *)(INTER_REGS_BASE + uartOffset);
    while ((pUartPort->lsr & LSR_DR) == 0) ;
    return (pUartPort->rbr);
#else
    return 0xff;
#endif
}

/*******************************************************************************
* mvUartTstc - Check if new data available in the UART.
*
* DESCRIPTION:
*       This routine heck if a charachter is ready to be read from one of the
*   the uart ports.
*
* INPUT:
*       port - uart port number.
*
* OUTPUT:
*       None.
*
* RETURN:
*   None.
*
*******************************************************************************/
MV_BOOL mvUartTstc()
{
#if !defined(MV_NO_INPUT)
    volatile MV_UART_PORT *pUartPort = (volatile MV_UART_PORT *)(INTER_REGS_BASE + uartOffset);
    return ((pUartPort->lsr & LSR_DR) != 0);
#else
    return FALSE;
#endif /* #if !defined(MV_NO_INPUT) */
}