1 /* 2 * drivers/media/i2c/smiapp/smiapp-quirk.h 3 * 4 * Generic driver for SMIA/SMIA++ compliant camera modules 5 * 6 * Copyright (C) 2011--2012 Nokia Corporation 7 * Contact: Sakari Ailus <sakari.ailus@iki.fi> 8 * 9 * This program is free software; you can redistribute it and/or 10 * modify it under the terms of the GNU General Public License 11 * version 2 as published by the Free Software Foundation. 12 * 13 * This program is distributed in the hope that it will be useful, but 14 * WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16 * General Public License for more details. 17 */ 18 19 #ifndef __SMIAPP_QUIRK__ 20 #define __SMIAPP_QUIRK__ 21 22 struct smiapp_sensor; 23 24 /** 25 * struct smiapp_quirk - quirks for sensors that deviate from SMIA++ standard 26 * 27 * @limits: Replace sensor->limits with values which can't be read from 28 * sensor registers. Called the first time the sensor is powered up. 29 * @post_poweron: Called always after the sensor has been fully powered on. 30 * @pre_streamon: Called just before streaming is enabled. 31 * @post_streamon: Called right after stopping streaming. 32 * @pll_flags: Return flags for the PLL calculator. 33 * @init: Quirk initialisation, called the last in probe(). This is 34 * also appropriate for adding sensor specific controls, for instance. 35 * @reg_access: Register access quirk. The quirk may divert the access 36 * to another register, or no register at all. 37 * 38 * @write: Is this read (false) or write (true) access? 39 * @reg: Pointer to the register to access 40 * @value: Register value, set by the caller on write, or 41 * by the quirk on read 42 * 43 * @return: 0 on success, -ENOIOCTLCMD if no register 44 * access may be done by the caller (default read 45 * value is zero), else negative error code on error 46 */ 47 struct smiapp_quirk { 48 int (*limits)(struct smiapp_sensor *sensor); 49 int (*post_poweron)(struct smiapp_sensor *sensor); 50 int (*pre_streamon)(struct smiapp_sensor *sensor); 51 int (*post_streamoff)(struct smiapp_sensor *sensor); 52 unsigned long (*pll_flags)(struct smiapp_sensor *sensor); 53 int (*init)(struct smiapp_sensor *sensor); 54 int (*reg_access)(struct smiapp_sensor *sensor, bool write, u32 *reg, 55 u32 *val); 56 unsigned long flags; 57 }; 58 59 #define SMIAPP_QUIRK_FLAG_8BIT_READ_ONLY (1 << 0) 60 61 struct smiapp_reg_8 { 62 u16 reg; 63 u8 val; 64 }; 65 66 void smiapp_replace_limit(struct smiapp_sensor *sensor, 67 u32 limit, u32 val); 68 69 #define SMIAPP_MK_QUIRK_REG_8(_reg, _val) \ 70 { \ 71 .reg = (u16)_reg, \ 72 .val = _val, \ 73 } 74 75 #define smiapp_call_quirk(sensor, _quirk, ...) \ 76 ((sensor)->minfo.quirk && \ 77 (sensor)->minfo.quirk->_quirk ? \ 78 (sensor)->minfo.quirk->_quirk(sensor, ##__VA_ARGS__) : 0) 79 80 #define smiapp_needs_quirk(sensor, _quirk) \ 81 ((sensor)->minfo.quirk ? \ 82 (sensor)->minfo.quirk->flags & _quirk : 0) 83 84 extern const struct smiapp_quirk smiapp_jt8ev1_quirk; 85 extern const struct smiapp_quirk smiapp_imx125es_quirk; 86 extern const struct smiapp_quirk smiapp_jt8ew9_quirk; 87 extern const struct smiapp_quirk smiapp_tcm8500md_quirk; 88 89 #endif /* __SMIAPP_QUIRK__ */ 90
