/* * drivers/media/i2c/smiapp/smiapp-quirk.h * * Generic driver for SMIA/SMIA++ compliant camera modules * * Copyright (C) 2011--2012 Nokia Corporation * Contact: Sakari Ailus <sakari.ailus@iki.fi> * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * version 2 as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA * */ #ifndef __SMIAPP_QUIRK__ #define __SMIAPP_QUIRK__ struct smiapp_sensor; /** * struct smiapp_quirk - quirks for sensors that deviate from SMIA++ standard * * @limits: Replace sensor->limits with values which can't be read from * sensor registers. Called the first time the sensor is powered up. * @post_poweron: Called always after the sensor has been fully powered on. * @pre_streamon: Called just before streaming is enabled. * @post_streamon: Called right after stopping streaming. * @reg_access: Register access quirk. The quirk may divert the access * to another register, or no register at all. * * @write: Is this read (false) or write (true) access? * @reg: Pointer to the register to access * @value: Register value, set by the caller on write, or * by the quirk on read * * @return: 0 on success, -ENOIOCTLCMD if no register * access may be done by the caller (default read * value is zero), else negative error code on error */ struct smiapp_quirk { int (*limits)(struct smiapp_sensor *sensor); int (*post_poweron)(struct smiapp_sensor *sensor); int (*pre_streamon)(struct smiapp_sensor *sensor); int (*post_streamoff)(struct smiapp_sensor *sensor); unsigned long (*pll_flags)(struct smiapp_sensor *sensor); int (*reg_access)(struct smiapp_sensor *sensor, bool write, u32 *reg, u32 *val); unsigned long flags; }; #define SMIAPP_QUIRK_FLAG_8BIT_READ_ONLY (1 << 0) struct smiapp_reg_8 { u16 reg; u8 val; }; void smiapp_replace_limit(struct smiapp_sensor *sensor, u32 limit, u32 val); #define SMIAPP_MK_QUIRK_REG_8(_reg, _val) \ { \ .reg = (u16)_reg, \ .val = _val, \ } #define smiapp_call_quirk(_sensor, _quirk, ...) \ (_sensor->minfo.quirk && \ _sensor->minfo.quirk->_quirk ? \ _sensor->minfo.quirk->_quirk(_sensor, ##__VA_ARGS__) : 0) #define smiapp_needs_quirk(_sensor, _quirk) \ (_sensor->minfo.quirk ? \ _sensor->minfo.quirk->flags & _quirk : 0) extern const struct smiapp_quirk smiapp_jt8ev1_quirk; extern const struct smiapp_quirk smiapp_imx125es_quirk; extern const struct smiapp_quirk smiapp_jt8ew9_quirk; extern const struct smiapp_quirk smiapp_tcm8500md_quirk; #endif /* __SMIAPP_QUIRK__ */