1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * drivers/media/i2c/ccs/ccs-quirk.h 4 * 5 * Generic driver for MIPI CCS/SMIA/SMIA++ compliant camera sensors 6 * 7 * Copyright (C) 2020 Intel Corporation 8 * Copyright (C) 2011--2012 Nokia Corporation 9 * Contact: Sakari Ailus <sakari.ailus@linux.intel.com> 10 */ 11 12 #ifndef __CCS_QUIRK__ 13 #define __CCS_QUIRK__ 14 15 struct ccs_sensor; 16 17 /** 18 * struct ccs_quirk - quirks for sensors that deviate from SMIA++ standard 19 * 20 * @limits: Replace sensor->limits with values which can't be read from 21 * 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 is 27 * also appropriate for adding sensor specific controls, for instance. 28 * @reg_access: Register access quirk. The quirk may divert the access 29 * 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 access 33 * @value: Register value, set by the caller on write, or 34 * by the quirk on read 35 * 36 * @flags: Quirk flags 37 * 38 * @return: 0 on success, -ENOIOCTLCMD if no register 39 * access may be done by the caller (default read 40 * value is zero), else negative error code on error 41 */ 42 struct ccs_quirk { 43 int (*limits)(struct ccs_sensor *sensor); 44 int (*post_poweron)(struct ccs_sensor *sensor); 45 int (*pre_streamon)(struct ccs_sensor *sensor); 46 int (*post_streamoff)(struct ccs_sensor *sensor); 47 unsigned long (*pll_flags)(struct ccs_sensor *sensor); 48 int (*init)(struct ccs_sensor *sensor); 49 int (*reg_access)(struct ccs_sensor *sensor, bool write, u32 *reg, 50 u32 *val); 51 unsigned long flags; 52 }; 53 54 #define CCS_QUIRK_FLAG_8BIT_READ_ONLY (1 << 0) 55 56 struct ccs_reg_8 { 57 u16 reg; 58 u8 val; 59 }; 60 61 #define CCS_MK_QUIRK_REG_8(_reg, _val) \ 62 { \ 63 .reg = (u16)_reg, \ 64 .val = _val, \ 65 } 66 67 #define ccs_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 ccs_needs_quirk(sensor, _quirk) \ 73 ((sensor)->minfo.quirk ? \ 74 (sensor)->minfo.quirk->flags & _quirk : 0) 75 76 extern const struct ccs_quirk smiapp_jt8ev1_quirk; 77 extern const struct ccs_quirk smiapp_imx125es_quirk; 78 extern const struct ccs_quirk smiapp_jt8ew9_quirk; 79 extern const struct ccs_quirk smiapp_tcm8500md_quirk; 80 81 #endif /* __CCS_QUIRK__ */ 82