cx11646.h

应用于linux系统的usb接口的摄像头驱动

#ifndef CX11646USB_H
#define CX11646USB_H
/****************************************************************************
#	 	Connexant Cx11646    library                                #
# 		Copyright (C) 2004 Michel Xhaard   [e-mail]         #
#                                                                           #
# 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 #
#                                                                           #
****************************************************************************/
#include "cxlib.h"
static int cx11646_init(struct usb_spca50x *spca50x);
static void cx11646_start(struct usb_spca50x *spca50x);
static void cx11646_stop(struct usb_spca50x *spca50x);
static __u16 cx_getbrightness(struct usb_spca50x *spca50x);
static void cx_setbrightness(struct usb_spca50x *spca50x);
static void cx_setcontrast(struct usb_spca50x *spca50x);
 /**************************************************************************/
static int cx11646_init(struct usb_spca50x *spca50x)
{
    int err;
    cx11646_init1(spca50x);
    err = cx11646_initsize(spca50x);
    cx11646_fw(spca50x);
    cx_sensor(spca50x);
    cx11646_jpegInit(spca50x);
    return 0;
}
static void cx11646_start(struct usb_spca50x *spca50x)
{
    int err;

    err = cx11646_initsize(spca50x);
    cx11646_fw(spca50x);
    cx_sensor(spca50x);
    cx11646_jpeg(spca50x);
}
static void cx11646_stop(struct usb_spca50x *spca50x)
{

    int retry = 50;
    __u8 val = 0;
    spca5xxRegWrite(spca50x->dev, 0x00, 0x00, 0x0000, &val, 1);
    spca5xxRegRead(spca50x->dev, 0x00, 0x00, 0x0002, &val, 1);
    val = 0;
    spca5xxRegWrite(spca50x->dev, 0x00, 0x00, 0x0053, &val, 1);

    while (retry--) {
	//spca5xxRegRead (spca50x->dev,0x00,0x00,0x0002,&val,1);
	spca5xxRegRead(spca50x->dev, 0x00, 0x00, 0x0053, &val, 1);
	if (val == 0)
	    break;
    }
    val = 0;
    spca5xxRegWrite(spca50x->dev, 0x00, 0x00, 0x0000, &val, 1);
    spca5xxRegRead(spca50x->dev, 0x00, 0x00, 0x0002, &val, 1);

    val = 0;
    spca5xxRegWrite(spca50x->dev, 0x00, 0x00, 0x0010, &val, 1);
    spca5xxRegRead(spca50x->dev, 0x00, 0x00, 0x0033, &val, 1);
    val = 0xE0;
    spca5xxRegWrite(spca50x->dev, 0x00, 0x00, 0x00fc, &val, 1);

}
#endif				//CX11646USB_H