summaryrefslogtreecommitdiff
path: root/drivers/s3c4510b_uart.h
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/s3c4510b_uart.h')
-rw-r--r--drivers/s3c4510b_uart.h109
1 files changed, 109 insertions, 0 deletions
diff --git a/drivers/s3c4510b_uart.h b/drivers/s3c4510b_uart.h
new file mode 100644
index 0000000..b06c76d
--- /dev/null
+++ b/drivers/s3c4510b_uart.h
@@ -0,0 +1,109 @@
+#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