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/****************************************************************************
*
* Copyright (c) 2006 Dave Hylands <dhylands@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* Alternatively, this software may be distributed under the terms of BSD
* license.
*
* See README and COPYING for more details.
*
****************************************************************************/
/**
*
* robostix_drv.h
*
* PURPOSE:
*
* This implements a driver for using the robostix from the gumstix
*
* Initially, this contains the required support to emulate enough of the
* parallel port interface to allow avrdude to program the ATMega128.
*
*****************************************************************************/
#if !defined( LINUX_ROBOSTIX_H )
#define LINUX_ROBOSTIX_H )
/* ---- Include Files ----------------------------------------------------- */
#include <linux/ioctl.h>
/* ---- Constants and Types ----------------------------------------------- */
#define ROBOSTIX_MAJOR 240
#define ROBOSTIX_IOCTL_MAGIC 'R'
/**
* Deefines for each of the commands. Note that since we want to reduce
* the possibility that a user mode program gets out of sync with a given
* driver, we explicitly assign a value to each enumeration. This makes
* it more difficult to stick new ioctl's in the middle of the list.
*/
typedef enum
{
ROBOSTIX_CMD_FIRST = 0x80,
ROBOSTIX_CMD_POWER_VCC5 = 0x80,
ROBOSTIX_CMD_RESET = 0x81,
ROBOSTIX_CMD_245_ENABLE = 0x82,
ROBOSTIX_CMD_SET_SCK = 0x83,
ROBOSTIX_CMD_SET_SS = 0x84,
ROBOSTIX_CMD_SET_IR_TXD = 0x85,
ROBOSTIX_CMD_GET_IR_RXD = 0x86,
ROBOSTIX_CMD_SET_MOSI = 0x87,
ROBOSTIX_CMD_GET_MISO = 0x88,
ROBOSTIX_CMD_GET_IRQ = 0x89,
ROBOSTIX_CMD_DELAY_USEC = 0x8A, // value is hardocded in uisp DAPA.C
/* Insert new ioctls here */
ROBOSTIX_CMD_LAST,
} ROBOSTIX_CMD;
/*
* The following are arguments to the various ioctl's
*/
#define ROBOSTIX_PIN_OFF 0
#define ROBOSTIX_PIN_ON 1
#define ROBOSTIX_PIN_PULSE 2 // only used or Reset
/*
* Definitions for the actual ioctl commands
*/
#define ROBOSTIX_IOCTL_POWER_VCC5 _IO( ROBOSTIX_IOCTL_MAGIC, ROBOSTIX_CMD_POWER_VCC5 ) // arg is int
#define ROBOSTIX_IOCTL_RESET _IO( ROBOSTIX_IOCTL_MAGIC, ROBOSTIX_CMD_RESET ) // arg is int
#define ROBOSTIX_IOCTL_245_ENABLE _IO( ROBOSTIX_IOCTL_MAGIC, ROBOSTIX_CMD_245_ENABLE ) // arg is int
#define ROBOSTIX_IOCTL_SET_SCK _IO( ROBOSTIX_IOCTL_MAGIC, ROBOSTIX_CMD_SET_SCK ) // arg is int
#define ROBOSTIX_IOCTL_SET_SS _IO( ROBOSTIX_IOCTL_MAGIC, ROBOSTIX_CMD_SET_SS ) // arg is int
#define ROBOSTIX_IOCTL_SET_IR_TXD _IO( ROBOSTIX_IOCTL_MAGIC, ROBOSTIX_CMD_SET_IR_TXD ) // arg is int
#define ROBOSTIX_IOCTL_GET_IR_RXD _IOR( ROBOSTIX_IOCTL_MAGIC, ROBOSTIX_CMD_GET_IR_RXD, int ) // arg is int *
#define ROBOSTIX_IOCTL_SET_MOSI _IO( ROBOSTIX_IOCTL_MAGIC, ROBOSTIX_CMD_SET_MOSI ) // arg is int
#define ROBOSTIX_IOCTL_GET_MISO _IOR( ROBOSTIX_IOCTL_MAGIC, ROBOSTIX_CMD_GET_MISO, int ) // arg is int *
#define ROBOSTIX_IOCTL_GET_IRQ _IOR( ROBOSTIX_IOCTL_MAGIC, ROBOSTIX_CMD_GET_IRQ, int ) // arg is int *
#define ROBOSTIX_IOCTL_DELAY_USEC _IO( ROBOSTIX_IOCTL_MAGIC, ROBOSTIX_CMD_DELAY_USEC ) // arg is int
/*
* Definitions for sysctl. The top level define has to be unique system wide.
* The kernel defines values 1 thru about 10 (see include/linunx/sysctl.h)
*/
#define CTL_ROBOSTIX 0x526F626F /* 'Robo' in hex form */
/*
* The following are for entries in /proc/sys/robostix
*/
enum
{
CTL_ROBOSTIX_DEBUG_TRACE = 101,
CTL_ROBOSTIX_DEBUG_IOCTL = 102,
CTL_ROBOSTIX_DEBUG_ERROR = 103
};
#endif // LINUX_ROBOSTIX_H
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