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[DO NOT MERGE]lights: Add golden calibration support

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The units should deploy the golden calibration data
in either case of replacement of MLB or CG.

Bug: 264023021
Change-Id: Idb670bfefb3585ee1413e16c3e07d4d818f3f9ab
Signed-off-by: Chungjui Fan <chungjuifan@google.com>
This commit is contained in:
Chungjui Fan 2022-12-30 11:53:55 +00:00 • committed by CJ Fan
parent 07cf53f429
commit bfcd6be0c5
7 changed files with 92 additions and 9 deletions
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32
lights/led_lut_calibrator.cpp
View file

@ -17,14 +17,20 @@
#include "led_lut_calibrator.h"
#include <android-base/logging.h>
#include <android-base/properties.h>
#include <fcntl.h>
#include <iostream>
#include <sstream>
const char kCalibrationPath[] = "/mnt/vendor/persist/led/led_calibration_LUT.txt";
using ::android::base::GetProperty;
LedLutCalibrator::LedLutCalibrator() {
const char D_kCalibrationPath[] = "/mnt/vendor/persist/led/led_calibration_LUT.txt";
const char G_WHT_kCalibrationPath[] = "/vendor/etc/led_golden_calibration_LUT_white_CG.txt";
const char G_BLK_kCalibrationPath[] = "/vendor/etc/led_golden_calibration_LUT_black_CG.txt";
LedLutCalibrator::LedLutCalibrator(PanelCalibrationStatus status) {
cal_status_ = status;
if (!ReadCalibrationTable()) {
LOG(ERROR) << "Failed to read calibration table";
cal_table_.clear();
@ -47,19 +53,35 @@ bool LedLutCalibrator::ReadCalibrationTable() {
int fd;
int bytes;
bool ret = true;
const char *k_path = D_kCalibrationPath;
std::vector<uint8_t> buffer;
buffer.resize(512);
fd = open(kCalibrationPath, O_RDONLY);
fd = open(D_kCalibrationPath, O_RDONLY);
// If default calibration not found or display changed, deploy golen calibration.
if (fd < 0 || cal_status_ == PanelCalibrationStatus::GOLDEN) {
// Using golden white calibration as default
// even though bezel prooerty not found.
k_path = G_WHT_kCalibrationPath;
std::string cdt_hwid = GetProperty("ro.boot.cdt_hwid", "");
std::string hex_variant_str = cdt_hwid.substr(16, 2);
int bezel_color;
sscanf(hex_variant_str.c_str(), "%x", &bezel_color);
// 0: white, 2: black
if (bezel_color == 2)
k_path = G_BLK_kCalibrationPath;
}
fd = open(k_path, O_RDONLY);
if (fd < 0) {
LOG(ERROR) << "Failed to open " << kCalibrationPath;
LOG(ERROR) << "Failed to open " << k_path;
ret = false;
goto ReadCalibrationTable_err;
}
bytes = read(fd, buffer.data(), buffer.size());
if (bytes == -1) {
LOG(ERROR) << "Failed to read " << kCalibrationPath;
LOG(ERROR) << "Failed to read " << k_path;
ret = false;
goto ReadCalibrationTable_err;
}