LXR uboot/drivers/serial/s3c4510b

   1#ifndef __UART_H
   2#define __UART_H
   3
   4/*
   5 * Copyright (c) 2004   Cucy Systems (http://www.cucy.com)
   6 * Curt Brune <curt@cucy.com>
   7 *
   8 * See file CREDITS for list of people who contributed to this
   9 * project.
  10 *
  11 * This program is free software; you can redistribute it and/or
  12 * modify it under the terms of the GNU General Public License as
  13 * published by the Free Software Foundation; either version 2 of
  14 * the License, or (at your option) any later version.
  15 *
  16 * This program is distributed in the hope that it will be useful,
  17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 * GNU General Public License for more details.
  20 *
  21 * You should have received a copy of the GNU General Public License
  22 * along with this program; if not, write to the Free Software
  23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  24 * MA 02111-1307 USA
  25 *
  26 * Description:   S3C4510B UART register layout
  27 */
  28
  29/* UART LINE CONTROL register */
  30typedef struct __BF_UART_LINE_CTRL {
  31        u32    wordLen: 2;
  32        u32      nStop: 1;
  33        u32     parity: 3;
  34        u32        clk: 1;
  35        u32  infra_red: 1;
  36        u32     unused:24;
  37} BF_UART_LINE_CTRL;
  38
  39typedef union _UART_LINE_CTRL {
  40        u32               ui;
  41        BF_UART_LINE_CTRL bf;
  42} UART_LINE_CTRL;
  43
  44/* UART CONTROL register */
  45typedef struct __BF_UART_CTRL {
  46        u32     rxMode: 2;
  47        u32      rxIrq: 1;
  48        u32     txMode: 2;
  49        u32        DSR: 1;
  50        u32  sendBreak: 1;
  51        u32   loopBack: 1;
  52        u32     unused:24;
  53} BF_UART_CTRL;
  54
  55typedef union _UART_CTRL {
  56        u32            ui;
  57        BF_UART_CTRL   bf;
  58} UART_CTRL;
  59
  60/* UART STATUS register */
  61typedef struct __BF_UART_STAT {
  62        u32      overrun: 1;
  63        u32       parity: 1;
  64        u32        frame: 1;
  65        u32     breakIrq: 1;
  66        u32          DTR: 1;
  67        u32      rxReady: 1;
  68        u32   txBufEmpty: 1;
  69        u32   txComplete: 1;
  70        u32       unused:24;
  71} BF_UART_STAT;
  72
  73typedef union _UART_STAT {
  74        u32            ui;
  75        BF_UART_STAT   bf;
  76} UART_STAT;
  77
  78/* UART BAUD_DIV register */
  79typedef struct __BF_UART_BAUD_DIV {
  80        u32      cnt1: 4;
  81        u32      cnt0:12;
  82        u32    unused:16;
  83} BF_UART_BAUD_DIV;
  84
  85typedef union _UART_BAUD_DIV {
  86        u32                ui;
  87        BF_UART_BAUD_DIV   bf;
  88} UART_BAUD_DIV;
  89
  90/* UART register block */
  91typedef struct __UART {
  92        volatile UART_LINE_CTRL  m_lineCtrl;
  93        volatile UART_CTRL           m_ctrl;
  94        volatile UART_STAT           m_stat;
  95        volatile u32                   m_tx;
  96        volatile u32                   m_rx;
  97        volatile UART_BAUD_DIV    m_baudDiv;
  98        volatile u32              m_baudCnt;
  99        volatile u32              m_baudClk;
 100} UART;
 101
 102#define NL          0x0A
 103#define CR          0x0D
 104#define BSP         0x08
 105#define ESC         0x1B
 106#define CTRLZ       0x1A
 107#define RUBOUT      0x7F
 108
 109#endif
 110