spi.h

spi设备uclinux驱动源代码

/****************************************Copyright (c)**************************************************
**                               Guangzou ZLG-MCU Development Co.,LTD.
**                                      graduate school
**                                 http://www.zlgmcu.com
**
**--------------File Info-------------------------------------------------------------------------------
** File Name:  spi.h
** Last modified Date:  2005-04-29
** Last Version: 1.0
** Descriptions: spi.h
**
**------------------------------------------------------------------------------------------------------
** Created By: Chenmingji
** Created date:   2004-04-29
** Version: 1.0
** Descriptions: First version
**
**------------------------------------------------------------------------------------------------------
** Modified by:
** Modified date:
** Version:
** Descriptions:
**
********************************************************************************************************/
#ifndef __SPI_H
#define __SPI_H
#include <linux/ioctl.h>

#define SPI_IOC_MAGIC      0xd3

#define SPI_SET_CLKDIV      _IO(SPI_IOC_MAGIC,    0)
#define SPI_SET_CPHA_FIRST  _IO(SPI_IOC_MAGIC,    1)
#define SPI_SET_CPHA_SECOND _IO(SPI_IOC_MAGIC,    2)
#define SPI_SET_CPOL_LOW    _IO(SPI_IOC_MAGIC,    3)
#define SPI_SET_CPOL_HIGHT  _IO(SPI_IOC_MAGIC,    4)
#define SPI_SET_LSBF_BIT0   _IO(SPI_IOC_MAGIC,    5)
#define SPI_SET_LSBF_BIT7   _IO(SPI_IOC_MAGIC,    6)
#define SPI_WR_DATA         _IOWR(SPI_IOC_MAGIC,  7, uint8)
#define SPI_START           _IO(SPI_IOC_MAGIC,    8)
#define SPI_END             _IO(SPI_IOC_MAGIC,    9)

#define SPI_MAXNR           10 /* max command */
#endif
/*********************************************************************************************************
**                            End Of File
********************************************************************************************************/