LXR linux/drivers/media/video/zc0301/zc0301

   1/***************************************************************************
   2 * API for image sensors connected to the ZC0301[P] Image Processor and    *
   3 * Control Chip                                                            *
   4 *                                                                         *
   5 * Copyright (C) 2006-2007 by Luca Risolia <luca.risolia@studio.unibo.it>  *
   6 *                                                                         *
   7 * This program is free software; you can redistribute it and/or modify    *
   8 * it under the terms of the GNU General Public License as published by    *
   9 * the Free Software Foundation; either version 2 of the License, or       *
  10 * (at your option) any later version.                                     *
  11 *                                                                         *
  12 * This program is distributed in the hope that it will be useful,         *
  13 * but WITHOUT ANY WARRANTY; without even the implied warranty of          *
  14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the           *
  15 * GNU General Public License for more details.                            *
  16 *                                                                         *
  17 * You should have received a copy of the GNU General Public License       *
  18 * along with this program; if not, write to the Free Software             *
  19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.               *
  20 ***************************************************************************/
  21
  22#ifndef _ZC0301_SENSOR_H_
  23#define _ZC0301_SENSOR_H_
  24
  25#include <linux/usb.h>
  26#include <linux/videodev2.h>
  27#include <linux/device.h>
  28#include <linux/stddef.h>
  29#include <linux/errno.h>
  30#include <asm/types.h>
  31
  32struct zc0301_device;
  33struct zc0301_sensor;
  34
  35/*****************************************************************************/
  36
  37extern int zc0301_probe_pas202bcb(struct zc0301_device* cam);
  38extern int zc0301_probe_pb0330(struct zc0301_device* cam);
  39
  40#define ZC0301_SENSOR_TABLE                                                   \
  41/* Weak detections must go at the end of the list */                          \
  42static int (*zc0301_sensor_table[])(struct zc0301_device*) = {                \
  43        &zc0301_probe_pas202bcb,                                              \
  44        &zc0301_probe_pb0330,                                                 \
  45        NULL,                                                                 \
  46};
  47
  48extern struct zc0301_device*
  49zc0301_match_id(struct zc0301_device* cam, const struct usb_device_id *id);
  50
  51extern void
  52zc0301_attach_sensor(struct zc0301_device* cam, struct zc0301_sensor* sensor);
  53
  54#define ZC0301_USB_DEVICE(vend, prod, intclass)                               \
  55        .match_flags = USB_DEVICE_ID_MATCH_DEVICE |                           \
  56                       USB_DEVICE_ID_MATCH_INT_CLASS,                         \
  57        .idVendor = (vend),                                                   \
  58        .idProduct = (prod),                                                  \
  59        .bInterfaceClass = (intclass)
  60
  61#if !defined CONFIG_USB_GSPCA && !defined CONFIG_USB_GSPCA_MODULE
  62#define ZC0301_ID_TABLE                                                       \
  63static const struct usb_device_id zc0301_id_table[] =  {                      \
  64        { ZC0301_USB_DEVICE(0x046d, 0x08ae, 0xff), }, /* PAS202 */            \
  65        { ZC0301_USB_DEVICE(0x0ac8, 0x303b, 0xff), }, /* PB-0330 */           \
  66        { }                                                                   \
  67};
  68#else
  69#define ZC0301_ID_TABLE                                                       \
  70static const struct usb_device_id zc0301_id_table[] =  {                      \
  71        { ZC0301_USB_DEVICE(0x046d, 0x08ae, 0xff), }, /* PAS202 */            \
  72        { }                                                                   \
  73};
  74#endif
  75
  76/*****************************************************************************/
  77
  78extern int zc0301_write_reg(struct zc0301_device*, u16 index, u16 value);
  79extern int zc0301_read_reg(struct zc0301_device*, u16 index);
  80extern int zc0301_i2c_write(struct zc0301_device*, u16 address, u16 value);
  81extern int zc0301_i2c_read(struct zc0301_device*, u16 address, u8 length);
  82
  83/*****************************************************************************/
  84
  85#define ZC0301_MAX_CTRLS (V4L2_CID_LASTP1 - V4L2_CID_BASE + 10)
  86#define ZC0301_V4L2_CID_DAC_MAGNITUDE (V4L2_CID_PRIVATE_BASE + 0)
  87#define ZC0301_V4L2_CID_GREEN_BALANCE (V4L2_CID_PRIVATE_BASE + 1)
  88
  89struct zc0301_sensor {
  90        char name[32];
  91
  92        struct v4l2_queryctrl qctrl[ZC0301_MAX_CTRLS];
  93        struct v4l2_cropcap cropcap;
  94        struct v4l2_pix_format pix_format;
  95
  96        int (*init)(struct zc0301_device*);
  97        int (*get_ctrl)(struct zc0301_device*, struct v4l2_control* ctrl);
  98        int (*set_ctrl)(struct zc0301_device*,
  99                        const struct v4l2_control* ctrl);
 100        int (*set_crop)(struct zc0301_device*, const struct v4l2_rect* rect);
 101
 102        /* Private */
 103        struct v4l2_queryctrl _qctrl[ZC0301_MAX_CTRLS];
 104        struct v4l2_rect _rect;
 105};
 106
 107#endif /* _ZC0301_SENSOR_H_ */
 108