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
32 struct zc0301_device;
33 struct zc0301_sensor;
34
35 /*****************************************************************************/
36
37 extern int zc0301_probe_pas202bcb(struct zc0301_device* cam);
38 extern 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 */ \
42 static int (*zc0301_sensor_table[])(struct zc0301_device*) = { \
43 &zc0301_probe_pas202bcb, \
44 &zc0301_probe_pb0330, \
45 NULL, \
46 };
47
48 extern struct zc0301_device*
49 zc0301_match_id(struct zc0301_device* cam, const struct usb_device_id *id);
50
51 extern void
52 zc0301_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 \
63 static 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 \
70 static const struct usb_device_id zc0301_id_table[] = { \
71 { ZC0301_USB_DEVICE(0x046d, 0x08ae, 0xff), }, /* PAS202 */ \
72 { } \
73 };
74 #endif
75
76 /*****************************************************************************/
77
78 extern int zc0301_write_reg(struct zc0301_device*, u16 index, u16 value);
79 extern int zc0301_read_reg(struct zc0301_device*, u16 index);
80 extern int zc0301_i2c_write(struct zc0301_device*, u16 address, u16 value);
81 extern 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
89 struct 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
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