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#ifndef CYGONCE_V85X_V850_SERIAL_H

#define CYGONCE_V85X_V850_SERIAL_H

// ====================================================================

//

//      v850_ceb_serial.h

//

//      Device I/O - Description of NEC V850 serial hardware

//

// ====================================================================

//####ECOSGPLCOPYRIGHTBEGIN####

// -------------------------------------------

// This file is part of eCos, the Embedded Configurable Operating System.

// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.

//

// eCos is free software; you can redistribute it and/or modify it under

// the terms of the GNU General Public License as published by the Free

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//

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// WARRANTY; without even the implied warranty of MERCHANTABILITY or

// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

// for more details.

//

// You should have received a copy of the GNU General Public License along

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// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.

//

// As a special exception, if other files instantiate templates or use macros

// or inline functions from this file, or you compile this file and link it

// with other works to produce a work based on this file, this file does not

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// -------------------------------------------

//####ECOSGPLCOPYRIGHTEND####

// ====================================================================

//#####DESCRIPTIONBEGIN####

//

// Author(s):    gthomas

// Contributors: gthomas,jlarmour

// Date:         2001-03-21

// Purpose:      Internal interfaces for serial I/O drivers

// Description:

//

//####DESCRIPTIONEND####

//

// ====================================================================

// Description of serial ports on NEC V850/SA1 & SB1

#include <pkgconf/system.h>

#include CYGBLD_HAL_TARGET_H

#include <cyg/hal/v850_common.h>

struct serial_port {

    unsigned char asim;        // Serial interface mode

    unsigned char _filler0;

    unsigned char asis;        // Serial interface status

    unsigned char _filler1;

    unsigned char brgc;        // Baud rate control

    unsigned char _filler2;

    unsigned char txs;         // Transmit shift register

    unsigned char _filler3;

    unsigned char rxs;         // Receive shift register

    unsigned char _filler4[5];

    unsigned char brgm;        // Baud rate mode

    unsigned char _filler5;

#if CYGINT_HAL_V850_VARIANT_SB1

    unsigned char _filler6[0x10];

    unsigned char brgm1;       // Baud rate overflow

#endif

};

// Relative interrupt numbers

#define INT_ERR 0              // Receive error condition

#define INT_Rx  1              // Receive data

#define INT_Tx  2              // Transmit data

// Serial interface mode

#define ASIM_TxRx_MASK     (3<<6)  // Receive & Transmit enables

#define ASIM_TxRx_Rx       (1<<6)  // Receive enable

#define ASIM_TxRx_Tx       (2<<6)  // Transmit enable

#define ASIM_Parity_MASK   (3<<4)  // Parity mode bits

#define ASIM_Parity_none   (0<<4)  // No parity

#define ASIM_Parity_space  (1<<4)  // Send zero bit, ignore errors

#define ASIM_Parity_odd    (2<<4)  // Odd parity

#define ASIM_Parity_even   (3<<4)  // Even parity

#define ASIM_Length_MASK   (1<<3)  // Character length select

#define ASIM_Length_7      (0<<3)  // 7 bit chars

#define ASIM_Length_8      (1<<3)  // 8 bit chars

#define ASIM_Stop_MASK     (1<<2)  // Stop bit select

#define ASIM_Stop_1        (0<<2)  // 1 stop bit

#define ASIM_Stop_2        (1<<2)  // 2 stop bits

#define ASIM_Error_MASK    (1<<1)  // Receive error select

#define ASIM_Error_enable  (0<<1)  // Issue interrupt on receive error

#define ASIM_Error_disable (1<<1)  // No interrupts on receive error

// Serial interface status (errors only)

#define ASIS_OVE           (1<<0)  // Overrun error

#define ASIS_FE            (1<<1)  // Framing error

#define ASIS_PE            (1<<2)  // Parity error

static unsigned char select_word_length[] = {

    0xFF,                         // 5 bits / word (char)

    0xFF,

    ASIM_Length_7,

    ASIM_Length_8

};

static unsigned char select_stop_bits[] = {

    0,

    ASIM_Stop_1,                  // 1 stop bit

    0xFF,                         // 1.5 stop bit

    ASIM_Stop_2                   // 2 stop bits

};

static unsigned char select_parity[] = {

    ASIM_Parity_none,             // No parity

    ASIM_Parity_even,             // Even parity

    ASIM_Parity_odd,              // Odd parity

    0xFF,                         // Mark parity

    ASIM_Parity_space,            // Space parity

};

static struct v850_baud {

    unsigned int count;

    unsigned int divisor;

} select_baud[] = {

// Baud rate values, using defined system clock

#define BAUDCOUNT(X) ((CYGHWR_HAL_V85X_CPU_FREQ/2)/(X))

      {0, 0},                  // Unused

      {0, 0},                  // 50

      {0, 0},                  // 75

      {0, 0},                  // 110

      {0, 0},                  // 134.5

      {0, 0},                  // 150

      {0, 0},                  // 200

      {0, 0},                  // 300

      {0, 0},                  // 600

      {BAUDCOUNT(1200), 1},    // 1200

      {0, 0},                  // 1800

      {BAUDCOUNT(2400), 1},    // 2400

      {0, 0},                  // 3600

      {BAUDCOUNT(4800), 1},    // 4800

      {0, 0},                  // 7200

      {BAUDCOUNT(9600), 1},    // 9600

      {0, 0},                  // 14400

      {BAUDCOUNT(19200), 1},   // 19200

      {BAUDCOUNT(38400), 1},   // 38400

      {0, 0},                  // 57600

      {0, 0},                  // 115200

      {0, 0},                  // 230400

};

#endif // CYGONCE_V85X_V850_SERIAL_H

// EOF v85x_v850_serial.h