[media] smiapp: Register async subdev
[deliverable/linux.git] / drivers / media / i2c / smiapp / smiapp-quirk.h
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ccfc97bd 1/*
cb7a01ac 2 * drivers/media/i2c/smiapp/smiapp-quirk.h
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3 *
4 * Generic driver for SMIA/SMIA++ compliant camera modules
5 *
6 * Copyright (C) 2011--2012 Nokia Corporation
8c5dff90 7 * Contact: Sakari Ailus <sakari.ailus@iki.fi>
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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.
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17 */
18
19#ifndef __SMIAPP_QUIRK__
20#define __SMIAPP_QUIRK__
21
22struct smiapp_sensor;
23
24/**
25 * struct smiapp_quirk - quirks for sensors that deviate from SMIA++ standard
26 *
27 * @limits: Replace sensor->limits with values which can't be read from
28 * sensor registers. Called the first time the sensor is powered up.
29 * @post_poweron: Called always after the sensor has been fully powered on.
30 * @pre_streamon: Called just before streaming is enabled.
31 * @post_streamon: Called right after stopping streaming.
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32 * @reg_access: Register access quirk. The quirk may divert the access
33 * to another register, or no register at all.
34 *
35 * @write: Is this read (false) or write (true) access?
36 * @reg: Pointer to the register to access
37 * @value: Register value, set by the caller on write, or
38 * by the quirk on read
39 *
40 * @return: 0 on success, -ENOIOCTLCMD if no register
41 * access may be done by the caller (default read
42 * value is zero), else negative error code on error
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43 */
44struct smiapp_quirk {
45 int (*limits)(struct smiapp_sensor *sensor);
46 int (*post_poweron)(struct smiapp_sensor *sensor);
47 int (*pre_streamon)(struct smiapp_sensor *sensor);
48 int (*post_streamoff)(struct smiapp_sensor *sensor);
03efb2a0 49 unsigned long (*pll_flags)(struct smiapp_sensor *sensor);
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50 int (*reg_access)(struct smiapp_sensor *sensor, bool write, u32 *reg,
51 u32 *val);
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52 unsigned long flags;
53};
54
caf447bf 55#define SMIAPP_QUIRK_FLAG_8BIT_READ_ONLY (1 << 0)
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56
57struct smiapp_reg_8 {
58 u16 reg;
59 u8 val;
60};
61
62void smiapp_replace_limit(struct smiapp_sensor *sensor,
63 u32 limit, u32 val);
64
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65#define SMIAPP_MK_QUIRK_REG_8(_reg, _val) \
66 { \
67 .reg = (u16)_reg, \
68 .val = _val, \
69 }
70
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71#define smiapp_call_quirk(_sensor, _quirk, ...) \
72 (_sensor->minfo.quirk && \
73 _sensor->minfo.quirk->_quirk ? \
74 _sensor->minfo.quirk->_quirk(_sensor, ##__VA_ARGS__) : 0)
75
76#define smiapp_needs_quirk(_sensor, _quirk) \
77 (_sensor->minfo.quirk ? \
78 _sensor->minfo.quirk->flags & _quirk : 0)
79
80extern const struct smiapp_quirk smiapp_jt8ev1_quirk;
81extern const struct smiapp_quirk smiapp_imx125es_quirk;
82extern const struct smiapp_quirk smiapp_jt8ew9_quirk;
83extern const struct smiapp_quirk smiapp_tcm8500md_quirk;
84
85#endif /* __SMIAPP_QUIRK__ */
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