1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * drivers/media/i2c/smiapp/smiapp-quirk.h 4 * 5 * Generic driver for SMIA/SMIA++ compliant camera modules 6 * 7 * Copyright (C) 2011--2012 Nokia Corporation 8 * Contact: Sakari Ailus <sakari.ailus@iki.fi> 9 */ 10 11 #ifndef __SMIAPP_QUIRK__ 12 #define __SMIAPP_QUIRK__ 13 14 struct smiapp_sensor; 15 16 /** 17 * struct smiapp_quirk - quirks for sensors that deviate from SMIA++ standard 18 * 19 * @limits: Replace sensor->limits with values which can't be read from 20 * sensor registers. Called the first time the sensor is powered up. 21 * @post_poweron: Called always after the sensor has been fully powered on. 22 * @pre_streamon: Called just before streaming is enabled. 23 * @post_streamon: Called right after stopping streaming. 24 * @pll_flags: Return flags for the PLL calculator. 25 * @init: Quirk initialisation, called the last in probe(). This is 26 * also appropriate for adding sensor specific controls, for instance. 27 * @reg_access: Register access quirk. The quirk may divert the access 28 * to another register, or no register at all. 29 * 30 * @write: Is this read (false) or write (true) access? 31 * @reg: Pointer to the register to access 32 * @value: Register value, set by the caller on write, or 33 * by the quirk on read 34 * 35 * @return: 0 on success, -ENOIOCTLCMD if no register 36 * access may be done by the caller (default read 37 * value is zero), else negative error code on error 38 */ 39 struct smiapp_quirk { 40 int (*limits)(struct smiapp_sensor *sensor); 41 int (*post_poweron)(struct smiapp_sensor *sensor); 42 int (*pre_streamon)(struct smiapp_sensor *sensor); 43 int (*post_streamoff)(struct smiapp_sensor *sensor); 44 unsigned long (*pll_flags)(struct smiapp_sensor *sensor); 45 int (*init)(struct smiapp_sensor *sensor); 46 int (*reg_access)(struct smiapp_sensor *sensor, bool write, u32 *reg, 47 u32 *val); 48 unsigned long flags; 49 }; 50 51 #define SMIAPP_QUIRK_FLAG_8BIT_READ_ONLY (1 << 0) 52 53 struct smiapp_reg_8 { 54 u16 reg; 55 u8 val; 56 }; 57 58 void smiapp_replace_limit(struct smiapp_sensor *sensor, 59 u32 limit, u32 val); 60 61 #define SMIAPP_MK_QUIRK_REG_8(_reg, _val) \ 62 { \ 63 .reg = (u16)_reg, \ 64 .val = _val, \ 65 } 66 67 #define smiapp_call_quirk(sensor, _quirk, ...) \ 68 ((sensor)->minfo.quirk && \ 69 (sensor)->minfo.quirk->_quirk ? \ 70 (sensor)->minfo.quirk->_quirk(sensor, ##__VA_ARGS__) : 0) 71 72 #define smiapp_needs_quirk(sensor, _quirk) \ 73 ((sensor)->minfo.quirk ? \ 74 (sensor)->minfo.quirk->flags & _quirk : 0) 75 76 extern const struct smiapp_quirk smiapp_jt8ev1_quirk; 77 extern const struct smiapp_quirk smiapp_imx125es_quirk; 78 extern const struct smiapp_quirk smiapp_jt8ew9_quirk; 79 extern const struct smiapp_quirk smiapp_tcm8500md_quirk; 80 81 #endif /* __SMIAPP_QUIRK__ */ 82