tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1.. SPDX-License-Identifier: GPL-2.0-only
2
3THine THP7312 ISP driver
4========================
5
6The THP7312 driver implements the following driver-specific controls:
7
8``V4L2_CID_THP7312_LOW_LIGHT_COMPENSATION``
9 Enable/Disable auto-adjustment, based on lighting conditions, of the frame
10 rate when auto-exposure is enabled.
11
12``V4L2_CID_THP7312_AUTO_FOCUS_METHOD``
13 Set method of auto-focus. Only takes effect when auto-focus is enabled.
14
15 .. flat-table::
16 :header-rows: 0
17 :stub-columns: 0
18 :widths: 1 4
19
20 * - ``0``
21 - Contrast-based auto-focus
22 * - ``1``
23 - PDAF
24 * - ``2``
25 - Hybrid of contrast-based and PDAF
26
27 Supported values for the control depend on the camera sensor module
28 connected to the THP7312. If the module doesn't have a focus lens actuator,
29 this control will not be exposed by the THP7312 driver. If the module has a
30 controllable focus lens but the sensor doesn't support PDAF, only the
31 contrast-based auto-focus value will be valid. Otherwise all values for the
32 controls will be supported.
33
34``V4L2_CID_THP7312_NOISE_REDUCTION_AUTO``
35 Enable/Disable auto noise reduction.
36
37``V4L2_CID_THP7312_NOISE_REDUCTION_ABSOLUTE``
38 Set the noise reduction strength, where 0 is the weakest and 10 is the
39 strongest.