/* SPDX-License-Identifier: GPL-2.0-only */ /* * drivers/media/i2c/ccs/ccs-quirk.h * * Generic driver for MIPI CCS/SMIA/SMIA++ compliant camera sensors * * Copyright (C) 2020 Intel Corporation * Copyright (C) 2011--2012 Nokia Corporation * Contact: Sakari Ailus <sakari.ailus@linux.intel.com> */ #ifndef __CCS_QUIRK__ #define __CCS_QUIRK__ struct ccs_sensor; /** * struct ccs_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_streamoff: Called right after stopping streaming. * @pll_flags: Return flags for the PLL calculator. * @init: Quirk initialisation, called the last in probe(). This is * also appropriate for adding sensor specific controls, for instance. * @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 * -val: 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 * @flags: Quirk flags */ struct ccs_quirk { int (*limits)(struct ccs_sensor *sensor); int (*post_poweron)(struct ccs_sensor *sensor); int (*pre_streamon)(struct ccs_sensor *sensor); int (*post_streamoff)(struct ccs_sensor *sensor); unsigned long (*pll_flags)(struct ccs_sensor *sensor); int (*init)(struct ccs_sensor *sensor); int (*reg_access)(struct ccs_sensor *sensor, bool write, u32 *reg, u32 *val); unsigned long flags; }; #define CCS_QUIRK_FLAG_8BIT_READ_ONLY (1 << 0) struct ccs_reg_8 { u16 reg; u8 val; }; #define CCS_MK_QUIRK_REG_8(_reg, _val) \ { \ .reg = (u16)_reg, \ .val = _val, \ } #define ccs_call_quirk(sensor, _quirk, ...) \ ((sensor)->minfo.quirk && \ (sensor)->minfo.quirk->_quirk ? \ (sensor)->minfo.quirk->_quirk(sensor, ##__VA_ARGS__) : 0) #define ccs_needs_quirk(sensor, _quirk) \ ((sensor)->minfo.quirk ? \ (sensor)->minfo.quirk->flags & _quirk : 0) extern const struct ccs_quirk smiapp_jt8ev1_quirk; extern const struct ccs_quirk smiapp_imx125es_quirk; extern const struct ccs_quirk smiapp_jt8ew9_quirk; extern const struct ccs_quirk smiapp_tcm8500md_quirk; #endif /* __CCS_QUIRK__ */