80 lines · c
1/* SPDX-License-Identifier: GPL-2.0-only */2/*3 * drivers/media/i2c/ccs/ccs-quirk.h4 *5 * Generic driver for MIPI CCS/SMIA/SMIA++ compliant camera sensors6 *7 * Copyright (C) 2020 Intel Corporation8 * Copyright (C) 2011--2012 Nokia Corporation9 * Contact: Sakari Ailus <sakari.ailus@linux.intel.com>10 */11 12#ifndef __CCS_QUIRK__13#define __CCS_QUIRK__14 15struct ccs_sensor;16 17/**18 * struct ccs_quirk - quirks for sensors that deviate from SMIA++ standard19 *20 * @limits: Replace sensor->limits with values which can't be read from21 * sensor registers. Called the first time the sensor is powered up.22 * @post_poweron: Called always after the sensor has been fully powered on.23 * @pre_streamon: Called just before streaming is enabled.24 * @post_streamoff: Called right after stopping streaming.25 * @pll_flags: Return flags for the PLL calculator.26 * @init: Quirk initialisation, called the last in probe(). This is27 * also appropriate for adding sensor specific controls, for instance.28 * @reg_access: Register access quirk. The quirk may divert the access29 * to another register, or no register at all.30 *31 * -write: Is this read (false) or write (true) access?32 * -reg: Pointer to the register to access33 * -val: Register value, set by the caller on write, or34 * by the quirk on read35 * -return: 0 on success, -ENOIOCTLCMD if no register36 * access may be done by the caller (default read37 * value is zero), else negative error code on error38 * @flags: Quirk flags39 */40struct ccs_quirk {41 int (*limits)(struct ccs_sensor *sensor);42 int (*post_poweron)(struct ccs_sensor *sensor);43 int (*pre_streamon)(struct ccs_sensor *sensor);44 int (*post_streamoff)(struct ccs_sensor *sensor);45 unsigned long (*pll_flags)(struct ccs_sensor *sensor);46 int (*init)(struct ccs_sensor *sensor);47 int (*reg_access)(struct ccs_sensor *sensor, bool write, u32 *reg,48 u32 *val);49 unsigned long flags;50};51 52#define CCS_QUIRK_FLAG_8BIT_READ_ONLY (1 << 0)53 54struct ccs_reg_8 {55 u16 reg;56 u8 val;57};58 59#define CCS_MK_QUIRK_REG_8(_reg, _val) \60 { \61 .reg = (u16)_reg, \62 .val = _val, \63 }64 65#define ccs_call_quirk(sensor, _quirk, ...) \66 ((sensor)->minfo.quirk && \67 (sensor)->minfo.quirk->_quirk ? \68 (sensor)->minfo.quirk->_quirk(sensor, ##__VA_ARGS__) : 0)69 70#define ccs_needs_quirk(sensor, _quirk) \71 ((sensor)->minfo.quirk ? \72 (sensor)->minfo.quirk->flags & _quirk : 0)73 74extern const struct ccs_quirk smiapp_jt8ev1_quirk;75extern const struct ccs_quirk smiapp_imx125es_quirk;76extern const struct ccs_quirk smiapp_jt8ew9_quirk;77extern const struct ccs_quirk smiapp_tcm8500md_quirk;78 79#endif /* __CCS_QUIRK__ */80