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 | * -val: Register value, set by the caller on write, or |
34 | * by the quirk on read |
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 | * @flags: Quirk flags |
39 | */ |
40 | struct 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 | |
54 | struct 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 | |
74 | extern const struct ccs_quirk smiapp_jt8ev1_quirk; |
75 | extern const struct ccs_quirk smiapp_imx125es_quirk; |
76 | extern const struct ccs_quirk smiapp_jt8ew9_quirk; |
77 | extern const struct ccs_quirk smiapp_tcm8500md_quirk; |
78 | |
79 | #endif /* __CCS_QUIRK__ */ |
80 | |