source: rtems/c/src/lib/libcpu/arm/pxa255/include/ffuart.h @ c499856

4.115
Last change on this file since c499856 was c499856, checked in by Chris Johns <chrisj@…>, on 03/20/14 at 21:10:47

Change all references of rtems.com to rtems.org.
  • Property mode set to 100644
File size: 1.1 KB
Line 
1/*
2 *  FFUART for PXA250 CPU by Yang Xi<hiyangxi@gmail.com>
3 *
4 *  The license and distribution terms for this file may be
5 *  found in the file LICENSE in this distribution or at
6 *  http://www.rtems.org/license/LICENSE.
7 */
8
9#ifndef __FFUART_H__
10#define __FFUART_H__
11
12typedef struct {
13  /*
14   *Receive buffer(DLAB=0).Transmit buffer(DLAB=0).
15   *Divisor Latch Low(DLAB=1)
16   */
17  volatile unsigned int rbr;
18  /*Interrupt enable(DLAB=0). Divisor Latch High(DLAB=1)*/
19  volatile unsigned int ier;
20  /*Interrupt identification.FIFO control*/
21  volatile unsigned int iir;
22  /*Line Control*/
23  volatile unsigned int lcr;
24  /*Modem control*/
25  volatile unsigned int mcr;
26  /*Line Status*/
27  volatile unsigned int lsr;
28  /*Modem status*/
29  volatile unsigned int msr;
30  /*Scratch Pad*/
31  volatile unsigned int spr;
32  /*Infrared Selection*/
33  volatile unsigned int isr;
34} ffuart_reg_t;
35
36
37#define EIGHT_BITS_NOPARITY_1STOPBIT  0x3
38#define DLAB 0x80
39
40
41/*Divisor = frequency_uart/(16 * BaudRate*)*/
42#define FREQUENCY_UART (14745600)
43
44#define SEND_EMPTY 0x20
45#define FULL_RECEIVE 0x01
46
47#endif
48
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