Evolution-X-Devices/device_oplus_camera
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camera: Make fastrpc_shell_3 publicly available

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* Used by GCAM for DSP-accelerated HDR processing
 * Arguably we should label /vendor/dsp/cdsp/fastrpc_shell_3 to
   same_process_hal_file like Pixels, but the partition is prebuilt thus
   we're unable to relabel it.
 * Copy the file to writable tmpfs, setup attributes and bind mount back
   to workaround the limitation.

[ghostrider-reborn]:
Allow adsp/cdsprpcd and neuralnetworks HAL to access fastrpc_shell_3

[kras edit:
 1. rename some contexts as per qva/kona
 2. extend to allow camera HAL and VPP service to access it as well]

Co-authored-by: Adithya R <gh0strider.2k18.reborn@gmail.com>
Change-Id: Ide90e5c7307d413db5ece736e859559f06679545
Signed-off-by: Adithya R <gh0strider.2k18.reborn@gmail.com>
This commit is contained in:
pjgowtham
2024-08-20 08:01:57 +05:30
parent 5d17e5edd6
commit bc5e83a618
10 changed files with 23 additions and 0 deletions
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8
init/init.oplus.camera.rc
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@@ -4,6 +4,14 @@
# SPDX-License-Identifier: Apache-2.0
#
on post-fs-data
# Bind mount fastrpc_shell_3 for labelling
mkdir /mnt/vendor/dsp 0770 root root
copy /vendor/dsp/cdsp/fastrpc_shell_3 /mnt/vendor/dsp/fastrpc_shell_3
chmod 0644 /mnt/vendor/dsp/fastrpc_shell_3
mount none /mnt/vendor/dsp/fastrpc_shell_3 /vendor/dsp/cdsp/fastrpc_shell_3 bind
on boot
# OIS
chown cameraserver cameraserver /sys/kernel/ois_control/dump_registers