90 lines
3 KiB
C
90 lines
3 KiB
C
/*
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* drivers/media/i2c/smiapp/smiapp-quirk.h
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*
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* Generic driver for SMIA/SMIA++ compliant camera modules
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*
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* Copyright (C) 2011--2012 Nokia Corporation
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* Contact: Sakari Ailus <sakari.ailus@iki.fi>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*/
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#ifndef __SMIAPP_QUIRK__
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#define __SMIAPP_QUIRK__
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struct smiapp_sensor;
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/**
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* struct smiapp_quirk - quirks for sensors that deviate from SMIA++ standard
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*
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* @limits: Replace sensor->limits with values which can't be read from
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* sensor registers. Called the first time the sensor is powered up.
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* @post_poweron: Called always after the sensor has been fully powered on.
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* @pre_streamon: Called just before streaming is enabled.
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* @post_streamon: Called right after stopping streaming.
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* @pll_flags: Return flags for the PLL calculator.
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* @init: Quirk initialisation, called the last in probe(). This is
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* also appropriate for adding sensor specific controls, for instance.
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* @reg_access: Register access quirk. The quirk may divert the access
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* to another register, or no register at all.
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*
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* @write: Is this read (false) or write (true) access?
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* @reg: Pointer to the register to access
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* @value: Register value, set by the caller on write, or
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* by the quirk on read
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*
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* @return: 0 on success, -ENOIOCTLCMD if no register
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* access may be done by the caller (default read
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* value is zero), else negative error code on error
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*/
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struct smiapp_quirk {
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int (*limits)(struct smiapp_sensor *sensor);
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int (*post_poweron)(struct smiapp_sensor *sensor);
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int (*pre_streamon)(struct smiapp_sensor *sensor);
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int (*post_streamoff)(struct smiapp_sensor *sensor);
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unsigned long (*pll_flags)(struct smiapp_sensor *sensor);
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int (*init)(struct smiapp_sensor *sensor);
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int (*reg_access)(struct smiapp_sensor *sensor, bool write, u32 *reg,
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u32 *val);
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unsigned long flags;
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};
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#define SMIAPP_QUIRK_FLAG_8BIT_READ_ONLY (1 << 0)
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struct smiapp_reg_8 {
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u16 reg;
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u8 val;
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};
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void smiapp_replace_limit(struct smiapp_sensor *sensor,
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u32 limit, u32 val);
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#define SMIAPP_MK_QUIRK_REG_8(_reg, _val) \
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{ \
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.reg = (u16)_reg, \
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.val = _val, \
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}
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#define smiapp_call_quirk(sensor, _quirk, ...) \
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((sensor)->minfo.quirk && \
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(sensor)->minfo.quirk->_quirk ? \
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(sensor)->minfo.quirk->_quirk(sensor, ##__VA_ARGS__) : 0)
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#define smiapp_needs_quirk(sensor, _quirk) \
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((sensor)->minfo.quirk ? \
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(sensor)->minfo.quirk->flags & _quirk : 0)
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extern const struct smiapp_quirk smiapp_jt8ev1_quirk;
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extern const struct smiapp_quirk smiapp_imx125es_quirk;
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extern const struct smiapp_quirk smiapp_jt8ew9_quirk;
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extern const struct smiapp_quirk smiapp_tcm8500md_quirk;
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#endif /* __SMIAPP_QUIRK__ */
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