firmware/target/arm/s3c2440/uart-s3c2440.h

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  *
   9  *
  10  * Copyright (C) 2009 by Bob Cousins
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation; either version 2
  15  * of the License, or (at your option) any later version.
  16  *
  17  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  18  * KIND, either express or implied.
  19  *
  20  ****************************************************************************/
  21
  22 #ifndef __UART_S3C2440_H__
  23 #define __UART_S3C2440_H__
  24
  25 /* target specific */
  26 #define DEBUG_UART_PORT     0
  27
  28 #define UART_NO_PARITY      0
  29 #define UART_ODD_PARITY     4
  30 #define UART_EVEN_PARITY    5
  31 #define UART_MARK_PARITY    6
  32 #define UART_SPACE_PARITY   7
  33
  34 #define UART_1_STOP_BIT     0
  35 #define UART_2_STOP_BIT     1
  36
  37 bool uart_init (void);
  38 void uart_printf (const char *format, ...);
  39
  40 /* low level routines */
  41 bool uart_init_device (unsigned dev);
  42 bool uart_config (unsigned dev, unsigned speed, unsigned num_bits, unsigned parity, unsigned stop_bits);
  43
  44 bool uart_tx_ready  (unsigned dev);
  45 bool uart_send_byte (unsigned dev, char ch);
  46 bool uart_send_buf  (unsigned dev, char *buf, unsigned len);
  47
  48 bool uart_rx_ready  (unsigned dev);
  49 char uart_read_byte (unsigned dev);
  50
  51
  52 #endif