#ifndef __UART_H #define __UART_H /* * Copyright (c) 2004 Cucy Systems (http://www.cucy.com) * Curt Brune <curt@cucy.com> * * See file CREDITS for list of people who contributed to this * project. * * This program 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 Software Foundation; either version 2 of * the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY 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 with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA * * Description: S3C4510B UART register layout */ /* UART LINE CONTROL register */ typedef struct __BF_UART_LINE_CTRL { u32 wordLen: 2; u32 nStop: 1; u32 parity: 3; u32 clk: 1; u32 infra_red: 1; u32 unused:24; } BF_UART_LINE_CTRL; typedef union _UART_LINE_CTRL { u32 ui; BF_UART_LINE_CTRL bf; } UART_LINE_CTRL; /* UART CONTROL register */ typedef struct __BF_UART_CTRL { u32 rxMode: 2; u32 rxIrq: 1; u32 txMode: 2; u32 DSR: 1; u32 sendBreak: 1; u32 loopBack: 1; u32 unused:24; } BF_UART_CTRL; typedef union _UART_CTRL { u32 ui; BF_UART_CTRL bf; } UART_CTRL; /* UART STATUS register */ typedef struct __BF_UART_STAT { u32 overrun: 1; u32 parity: 1; u32 frame: 1; u32 breakIrq: 1; u32 DTR: 1; u32 rxReady: 1; u32 txBufEmpty: 1; u32 txComplete: 1; u32 unused:24; } BF_UART_STAT; typedef union _UART_STAT { u32 ui; BF_UART_STAT bf; } UART_STAT; /* UART BAUD_DIV register */ typedef struct __BF_UART_BAUD_DIV { u32 cnt1: 4; u32 cnt0:12; u32 unused:16; } BF_UART_BAUD_DIV; typedef union _UART_BAUD_DIV { u32 ui; BF_UART_BAUD_DIV bf; } UART_BAUD_DIV; /* UART register block */ typedef struct __UART { volatile UART_LINE_CTRL m_lineCtrl; volatile UART_CTRL m_ctrl; volatile UART_STAT m_stat; volatile u32 m_tx; volatile u32 m_rx; volatile UART_BAUD_DIV m_baudDiv; volatile u32 m_baudCnt; volatile u32 m_baudClk; } UART; #define NL 0x0A #define CR 0x0D #define BSP 0x08 #define ESC 0x1B #define CTRLZ 0x1A #define RUBOUT 0x7F #endif