1/* 2 * Video4Linux bw-qcam driver 3 * 4 * Derived from code.. 5 */ 6 7/****************************************************************** 8 9Copyright (C) 1996 by Scott Laird 10 11Permission is hereby granted, free of charge, to any person obtaining 12a copy of this software and associated documentation files (the 13"Software"), to deal in the Software without restriction, including 14without limitation the rights to use, copy, modify, merge, publish, 15distribute, sublicense, and/or sell copies of the Software, and to 16permit persons to whom the Software is furnished to do so, subject to 17the following conditions: 18 19The above copyright notice and this permission notice shall be 20included in all copies or substantial portions of the Software. 21 22THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 23EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 24MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 25IN NO EVENT SHALL SCOTT LAIRD BE LIABLE FOR ANY CLAIM, DAMAGES OR 26OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 27ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 28OTHER DEALINGS IN THE SOFTWARE. 29 30******************************************************************/ 31 32/* One from column A... */ 33#define QC_NOTSET 0 34#define QC_UNIDIR 1 35#define QC_BIDIR 2 36#define QC_SERIAL 3 37 38/* ... and one from column B */ 39#define QC_ANY 0x00 40#define QC_FORCE_UNIDIR 0x10 41#define QC_FORCE_BIDIR 0x20 42#define QC_FORCE_SERIAL 0x30 43/* in the port_mode member */ 44 45#define QC_MODE_MASK 0x07 46#define QC_FORCE_MASK 0x70 47 48#define MAX_HEIGHT 243 49#define MAX_WIDTH 336 50 51/* Bit fields for status flags */ 52#define QC_PARAM_CHANGE 0x01 /* Camera status change has occurred */ 53 54struct qcam_device { 55 struct video_device vdev; 56 struct pardevice *pdev; 57 struct parport *pport; 58 struct mutex lock; 59 int width, height; 60 int bpp; 61 int mode; 62 int contrast, brightness, whitebal; 63 int port_mode; 64 int transfer_scale; 65 int top, left; 66 int status; 67 unsigned int saved_bits; 68 unsigned long in_use; 69}; 70