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smiapp-regs.h
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1 /*
2  * include/media/smiapp/smiapp-regs.h
3  *
4  * Generic driver for SMIA/SMIA++ compliant camera modules
5  *
6  * Copyright (C) 2011--2012 Nokia Corporation
7  * Contact: Sakari Ailus <[email protected]>
8  *
9  * This program is free software; you can redistribute it and/or
10  * modify it under the terms of the GNU General Public License
11  * version 2 as published by the Free Software Foundation.
12  *
13  * This program is distributed in the hope that it will be useful, but
14  * WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16  * General Public License for more details.
17  *
18  * You should have received a copy of the GNU General Public License
19  * along with this program; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
21  * 02110-1301 USA
22  *
23  */
24 
25 #ifndef SMIAPP_REGS_H
26 #define SMIAPP_REGS_H
27 
28 #include <linux/i2c.h>
29 #include <linux/types.h>
30 
31 /* Use upper 8 bits of the type field for flags */
32 #define SMIA_REG_FLAG_FLOAT (1 << 24)
33 
34 #define SMIA_REG_8BIT 1
35 #define SMIA_REG_16BIT 2
36 #define SMIA_REG_32BIT 4
37 struct smia_reg {
39  u16 reg; /* 16-bit offset */
40  u32 val; /* 8/16/32-bit value */
41 };
42 
43 struct smiapp_sensor;
44 
45 int smiapp_read(struct smiapp_sensor *sensor, u32 reg, u32 *val);
46 int smiapp_read_8only(struct smiapp_sensor *sensor, u32 reg, u32 *val);
47 int smiapp_write(struct smiapp_sensor *sensor, u32 reg, u32 val);
48 
49 #endif