1 /***************************************************************************
2 * API for image sensors connected to ET61X[12]51 PC Camera Controllers *
4 * Copyright (C) 2006 by Luca Risolia <luca.risolia@studio.unibo.it> *
6 * This program is free software; you can redistribute it and/or modify *
7 * it under the terms of the GNU General Public License as published by *
8 * the Free Software Foundation; either version 2 of the License, or *
9 * (at your option) any later version. *
11 * This program is distributed in the hope that it will be useful, *
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
14 * GNU General Public License for more details. *
16 * You should have received a copy of the GNU General Public License *
17 * along with this program; if not, write to the Free Software *
18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. *
19 ***************************************************************************/
21 #ifndef _ET61X251_SENSOR_H_
22 #define _ET61X251_SENSOR_H_
24 #include <linux/usb.h>
25 #include <linux/videodev.h>
26 #include <linux/device.h>
27 #include <linux/stddef.h>
28 #include <linux/errno.h>
29 #include <asm/types.h>
31 struct et61x251_device
;
32 struct et61x251_sensor
;
34 /*****************************************************************************/
36 extern int et61x251_probe_tas5130d1b(struct et61x251_device
* cam
);
38 #define ET61X251_SENSOR_TABLE \
39 /* Weak detections must go at the end of the list */ \
40 static int (*et61x251_sensor_table[])(struct et61x251_device*) = { \
41 &et61x251_probe_tas5130d1b, \
46 et61x251_attach_sensor(struct et61x251_device
* cam
,
47 struct et61x251_sensor
* sensor
);
49 /*****************************************************************************/
51 extern int et61x251_write_reg(struct et61x251_device
*, u8 value
, u16 index
);
52 extern int et61x251_read_reg(struct et61x251_device
*, u16 index
);
53 extern int et61x251_i2c_write(struct et61x251_device
*, u8 address
, u8 value
);
54 extern int et61x251_i2c_read(struct et61x251_device
*, u8 address
);
55 extern int et61x251_i2c_try_write(struct et61x251_device
*,
56 struct et61x251_sensor
*, u8 address
,
58 extern int et61x251_i2c_try_read(struct et61x251_device
*,
59 struct et61x251_sensor
*, u8 address
);
60 extern int et61x251_i2c_raw_write(struct et61x251_device
*, u8 n
, u8 data1
,
61 u8 data2
, u8 data3
, u8 data4
, u8 data5
,
62 u8 data6
, u8 data7
, u8 data8
, u8 address
);
64 /*****************************************************************************/
66 enum et61x251_i2c_sysfs_ops
{
67 ET61X251_I2C_READ
= 0x01,
68 ET61X251_I2C_WRITE
= 0x02,
71 enum et61x251_i2c_interface
{
76 /* Repeat start condition when RSTA is high */
77 enum et61x251_i2c_rsta
{
78 ET61X251_I2C_RSTA_STOP
= 0x00, /* stop then start */
79 ET61X251_I2C_RSTA_REPEAT
= 0x01, /* repeat start */
82 #define ET61X251_MAX_CTRLS V4L2_CID_LASTP1-V4L2_CID_BASE+10
84 struct et61x251_sensor
{
87 enum et61x251_i2c_sysfs_ops sysfs_ops
;
89 enum et61x251_i2c_interface interface
;
91 enum et61x251_i2c_rsta rsta
;
92 struct v4l2_rect active_pixel
; /* left and top define FVSX and FVSY */
94 struct v4l2_queryctrl qctrl
[ET61X251_MAX_CTRLS
];
95 struct v4l2_cropcap cropcap
;
96 struct v4l2_pix_format pix_format
;
98 int (*init
)(struct et61x251_device
* cam
);
99 int (*get_ctrl
)(struct et61x251_device
* cam
,
100 struct v4l2_control
* ctrl
);
101 int (*set_ctrl
)(struct et61x251_device
* cam
,
102 const struct v4l2_control
* ctrl
);
103 int (*set_crop
)(struct et61x251_device
* cam
,
104 const struct v4l2_rect
* rect
);
105 int (*set_pix_format
)(struct et61x251_device
* cam
,
106 const struct v4l2_pix_format
* pix
);
108 const struct usb_device
* usbdev
;
111 struct v4l2_queryctrl _qctrl
[ET61X251_MAX_CTRLS
];
112 struct v4l2_rect _rect
;
115 #endif /* _ET61X251_SENSOR_H_ */