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-rw-r--r--libs/input/KeyLayoutMap.cpp197
1 files changed, 115 insertions, 82 deletions
diff --git a/libs/input/KeyLayoutMap.cpp b/libs/input/KeyLayoutMap.cpp
index 7c25cda9ac..170e748ca6 100644
--- a/libs/input/KeyLayoutMap.cpp
+++ b/libs/input/KeyLayoutMap.cpp
@@ -21,24 +21,33 @@
#include <input/InputEventLabels.h>
#include <input/KeyLayoutMap.h>
#include <input/Keyboard.h>
+#include <log/log.h>
#include <utils/Errors.h>
-#include <utils/Log.h>
#include <utils/Timers.h>
#include <utils/Tokenizer.h>
+#include <vintf/RuntimeInfo.h>
+#include <vintf/VintfObject.h>
#include <cstdlib>
#include <string_view>
#include <unordered_map>
-// Enables debug output for the parser.
-#define DEBUG_PARSER 0
+/**
+ * Log debug output for the parser.
+ * Enable this via "adb shell setprop log.tag.KeyLayoutMapParser DEBUG" (requires restart)
+ */
+const bool DEBUG_PARSER =
+ __android_log_is_loggable(ANDROID_LOG_DEBUG, LOG_TAG "Parser", ANDROID_LOG_INFO);
// Enables debug output for parser performance.
#define DEBUG_PARSER_PERFORMANCE 0
-// Enables debug output for mapping.
-#define DEBUG_MAPPING 0
-
+/**
+ * Log debug output for mapping.
+ * Enable this via "adb shell setprop log.tag.KeyLayoutMapMapping DEBUG" (requires restart)
+ */
+const bool DEBUG_MAPPING =
+ __android_log_is_loggable(ANDROID_LOG_DEBUG, LOG_TAG "Mapping", ANDROID_LOG_INFO);
namespace android {
namespace {
@@ -69,6 +78,29 @@ static const std::unordered_map<std::string_view, InputDeviceSensorType> SENSOR_
sensorPair<InputDeviceSensorType::GYROSCOPE_UNCALIBRATED>(),
sensorPair<InputDeviceSensorType::SIGNIFICANT_MOTION>()};
+bool kernelConfigsArePresent(const std::set<std::string>& configs) {
+ std::shared_ptr<const android::vintf::RuntimeInfo> runtimeInfo =
+ android::vintf::VintfObject::GetInstance()->getRuntimeInfo(
+ vintf::RuntimeInfo::FetchFlag::CONFIG_GZ);
+ LOG_ALWAYS_FATAL_IF(runtimeInfo == nullptr, "Kernel configs could not be fetched");
+
+ const std::map<std::string, std::string>& kernelConfigs = runtimeInfo->kernelConfigs();
+ for (const std::string& requiredConfig : configs) {
+ const auto configIt = kernelConfigs.find(requiredConfig);
+ if (configIt == kernelConfigs.end()) {
+ ALOGI("Required kernel config %s is not found", requiredConfig.c_str());
+ return false;
+ }
+ const std::string& option = configIt->second;
+ if (option != "y" && option != "m") {
+ ALOGI("Required kernel config %s has option %s", requiredConfig.c_str(),
+ option.c_str());
+ return false;
+ }
+ }
+ return true;
+}
+
} // namespace
KeyLayoutMap::KeyLayoutMap() = default;
@@ -76,32 +108,34 @@ KeyLayoutMap::~KeyLayoutMap() = default;
base::Result<std::shared_ptr<KeyLayoutMap>> KeyLayoutMap::loadContents(const std::string& filename,
const char* contents) {
- Tokenizer* tokenizer;
- status_t status = Tokenizer::fromContents(String8(filename.c_str()), contents, &tokenizer);
- if (status) {
- ALOGE("Error %d opening key layout map.", status);
- return Errorf("Error {} opening key layout map file {}.", status, filename.c_str());
- }
- std::unique_ptr<Tokenizer> t(tokenizer);
- auto ret = load(t.get());
- if (ret.ok()) {
- (*ret)->mLoadFileName = filename;
- }
- return ret;
+ return load(filename, contents);
}
-base::Result<std::shared_ptr<KeyLayoutMap>> KeyLayoutMap::load(const std::string& filename) {
+base::Result<std::shared_ptr<KeyLayoutMap>> KeyLayoutMap::load(const std::string& filename,
+ const char* contents) {
Tokenizer* tokenizer;
- status_t status = Tokenizer::open(String8(filename.c_str()), &tokenizer);
+ status_t status;
+ if (contents == nullptr) {
+ status = Tokenizer::open(String8(filename.c_str()), &tokenizer);
+ } else {
+ status = Tokenizer::fromContents(String8(filename.c_str()), contents, &tokenizer);
+ }
if (status) {
ALOGE("Error %d opening key layout map file %s.", status, filename.c_str());
return Errorf("Error {} opening key layout map file {}.", status, filename.c_str());
}
std::unique_ptr<Tokenizer> t(tokenizer);
auto ret = load(t.get());
- if (ret.ok()) {
- (*ret)->mLoadFileName = filename;
+ if (!ret.ok()) {
+ return ret;
+ }
+ const std::shared_ptr<KeyLayoutMap>& map = *ret;
+ LOG_ALWAYS_FATAL_IF(map == nullptr, "Returned map should not be null if there's no error");
+ if (!kernelConfigsArePresent(map->mRequiredKernelConfigs)) {
+ ALOGI("Not loading %s because the required kernel configs are not set", filename.c_str());
+ return Errorf("Missing kernel config");
}
+ map->mLoadFileName = filename;
return ret;
}
@@ -134,9 +168,8 @@ status_t KeyLayoutMap::mapKey(int32_t scanCode, int32_t usageCode,
int32_t* outKeyCode, uint32_t* outFlags) const {
const Key* key = getKey(scanCode, usageCode);
if (!key) {
-#if DEBUG_MAPPING
- ALOGD("mapKey: scanCode=%d, usageCode=0x%08x ~ Failed.", scanCode, usageCode);
-#endif
+ ALOGD_IF(DEBUG_MAPPING, "mapKey: scanCode=%d, usageCode=0x%08x ~ Failed.", scanCode,
+ usageCode);
*outKeyCode = AKEYCODE_UNKNOWN;
*outFlags = 0;
return NAME_NOT_FOUND;
@@ -145,10 +178,9 @@ status_t KeyLayoutMap::mapKey(int32_t scanCode, int32_t usageCode,
*outKeyCode = key->keyCode;
*outFlags = key->flags;
-#if DEBUG_MAPPING
- ALOGD("mapKey: scanCode=%d, usageCode=0x%08x ~ Result keyCode=%d, outFlags=0x%08x.",
- scanCode, usageCode, *outKeyCode, *outFlags);
-#endif
+ ALOGD_IF(DEBUG_MAPPING,
+ "mapKey: scanCode=%d, usageCode=0x%08x ~ Result keyCode=%d, outFlags=0x%08x.",
+ scanCode, usageCode, *outKeyCode, *outFlags);
return NO_ERROR;
}
@@ -156,17 +188,12 @@ status_t KeyLayoutMap::mapKey(int32_t scanCode, int32_t usageCode,
base::Result<std::pair<InputDeviceSensorType, int32_t>> KeyLayoutMap::mapSensor(int32_t absCode) {
auto it = mSensorsByAbsCode.find(absCode);
if (it == mSensorsByAbsCode.end()) {
-#if DEBUG_MAPPING
- ALOGD("mapSensor: absCode=%d, ~ Failed.", absCode);
-#endif
+ ALOGD_IF(DEBUG_MAPPING, "mapSensor: absCode=%d, ~ Failed.", absCode);
return Errorf("Can't find abs code {}.", absCode);
}
const Sensor& sensor = it->second;
-
-#if DEBUG_MAPPING
- ALOGD("mapSensor: absCode=%d, sensorType=%s, sensorDataIndex=0x%x.", absCode,
- ftl::enum_string(sensor.sensorType).c_str(), sensor.sensorDataIndex);
-#endif
+ ALOGD_IF(DEBUG_MAPPING, "mapSensor: absCode=%d, sensorType=%s, sensorDataIndex=0x%x.", absCode,
+ ftl::enum_string(sensor.sensorType).c_str(), sensor.sensorDataIndex);
return std::make_pair(sensor.sensorType, sensor.sensorDataIndex);
}
@@ -200,21 +227,18 @@ status_t KeyLayoutMap::findScanCodesForKey(
status_t KeyLayoutMap::mapAxis(int32_t scanCode, AxisInfo* outAxisInfo) const {
ssize_t index = mAxes.indexOfKey(scanCode);
if (index < 0) {
-#if DEBUG_MAPPING
- ALOGD("mapAxis: scanCode=%d ~ Failed.", scanCode);
-#endif
+ ALOGD_IF(DEBUG_MAPPING, "mapAxis: scanCode=%d ~ Failed.", scanCode);
return NAME_NOT_FOUND;
}
*outAxisInfo = mAxes.valueAt(index);
-#if DEBUG_MAPPING
- ALOGD("mapAxis: scanCode=%d ~ Result mode=%d, axis=%d, highAxis=%d, "
- "splitValue=%d, flatOverride=%d.",
- scanCode,
- outAxisInfo->mode, outAxisInfo->axis, outAxisInfo->highAxis,
- outAxisInfo->splitValue, outAxisInfo->flatOverride);
-#endif
+ ALOGD_IF(DEBUG_MAPPING,
+ "mapAxis: scanCode=%d ~ Result mode=%d, axis=%d, highAxis=%d, "
+ "splitValue=%d, flatOverride=%d.",
+ scanCode, outAxisInfo->mode, outAxisInfo->axis, outAxisInfo->highAxis,
+ outAxisInfo->splitValue, outAxisInfo->flatOverride);
+
return NO_ERROR;
}
@@ -223,15 +247,12 @@ status_t KeyLayoutMap::findScanCodeForLed(int32_t ledCode, int32_t* outScanCode)
for (size_t i = 0; i < N; i++) {
if (mLedsByScanCode.valueAt(i).ledCode == ledCode) {
*outScanCode = mLedsByScanCode.keyAt(i);
-#if DEBUG_MAPPING
- ALOGD("findScanCodeForLed: ledCode=%d, scanCode=%d.", ledCode, *outScanCode);
-#endif
+ ALOGD_IF(DEBUG_MAPPING, "findScanCodeForLed: ledCode=%d, scanCode=%d.", ledCode,
+ *outScanCode);
return NO_ERROR;
}
}
-#if DEBUG_MAPPING
- ALOGD("findScanCodeForLed: ledCode=%d ~ Not found.", ledCode);
-#endif
+ ALOGD_IF(DEBUG_MAPPING, "findScanCodeForLed: ledCode=%d ~ Not found.", ledCode);
return NAME_NOT_FOUND;
}
@@ -240,15 +261,12 @@ status_t KeyLayoutMap::findUsageCodeForLed(int32_t ledCode, int32_t* outUsageCod
for (size_t i = 0; i < N; i++) {
if (mLedsByUsageCode.valueAt(i).ledCode == ledCode) {
*outUsageCode = mLedsByUsageCode.keyAt(i);
-#if DEBUG_MAPPING
- ALOGD("findUsageForLed: ledCode=%d, usage=%x.", ledCode, *outUsageCode);
-#endif
+ ALOGD_IF(DEBUG_MAPPING, "%s: ledCode=%d, usage=%x.", __func__, ledCode, *outUsageCode);
return NO_ERROR;
}
}
-#if DEBUG_MAPPING
- ALOGD("findUsageForLed: ledCode=%d ~ Not found.", ledCode);
-#endif
+ ALOGD_IF(DEBUG_MAPPING, "%s: ledCode=%d ~ Not found.", __func__, ledCode);
+
return NAME_NOT_FOUND;
}
@@ -264,10 +282,8 @@ KeyLayoutMap::Parser::~Parser() {
status_t KeyLayoutMap::Parser::parse() {
while (!mTokenizer->isEof()) {
-#if DEBUG_PARSER
- ALOGD("Parsing %s: '%s'.", mTokenizer->getLocation().string(),
- mTokenizer->peekRemainderOfLine().string());
-#endif
+ ALOGD_IF(DEBUG_PARSER, "Parsing %s: '%s'.", mTokenizer->getLocation().string(),
+ mTokenizer->peekRemainderOfLine().string());
mTokenizer->skipDelimiters(WHITESPACE);
@@ -289,6 +305,10 @@ status_t KeyLayoutMap::Parser::parse() {
mTokenizer->skipDelimiters(WHITESPACE);
status_t status = parseSensor();
if (status) return status;
+ } else if (keywordToken == "requires_kernel_config") {
+ mTokenizer->skipDelimiters(WHITESPACE);
+ status_t status = parseRequiredKernelConfig();
+ if (status) return status;
} else {
ALOGE("%s: Expected keyword, got '%s'.", mTokenizer->getLocation().string(),
keywordToken.string());
@@ -361,10 +381,9 @@ status_t KeyLayoutMap::Parser::parseKey() {
flags |= flag;
}
-#if DEBUG_PARSER
- ALOGD("Parsed key %s: code=%d, keyCode=%d, flags=0x%08x.",
- mapUsage ? "usage" : "scan code", code, keyCode, flags);
-#endif
+ ALOGD_IF(DEBUG_PARSER, "Parsed key %s: code=%d, keyCode=%d, flags=0x%08x.",
+ mapUsage ? "usage" : "scan code", code, keyCode, flags);
+
Key key;
key.keyCode = keyCode;
key.flags = flags;
@@ -462,13 +481,12 @@ status_t KeyLayoutMap::Parser::parseAxis() {
}
}
-#if DEBUG_PARSER
- ALOGD("Parsed axis: scanCode=%d, mode=%d, axis=%d, highAxis=%d, "
- "splitValue=%d, flatOverride=%d.",
- scanCode,
- axisInfo.mode, axisInfo.axis, axisInfo.highAxis,
- axisInfo.splitValue, axisInfo.flatOverride);
-#endif
+ ALOGD_IF(DEBUG_PARSER,
+ "Parsed axis: scanCode=%d, mode=%d, axis=%d, highAxis=%d, "
+ "splitValue=%d, flatOverride=%d.",
+ scanCode, axisInfo.mode, axisInfo.axis, axisInfo.highAxis, axisInfo.splitValue,
+ axisInfo.flatOverride);
+
mMap->mAxes.add(scanCode, axisInfo);
return NO_ERROR;
}
@@ -505,10 +523,8 @@ status_t KeyLayoutMap::Parser::parseLed() {
return BAD_VALUE;
}
-#if DEBUG_PARSER
- ALOGD("Parsed led %s: code=%d, ledCode=%d.",
- mapUsage ? "usage" : "scan code", code, ledCode);
-#endif
+ ALOGD_IF(DEBUG_PARSER, "Parsed led %s: code=%d, ledCode=%d.", mapUsage ? "usage" : "scan code",
+ code, ledCode);
Led led;
led.ledCode = ledCode;
@@ -584,10 +600,8 @@ status_t KeyLayoutMap::Parser::parseSensor() {
}
int32_t sensorDataIndex = indexOpt.value();
-#if DEBUG_PARSER
- ALOGD("Parsed sensor: abs code=%d, sensorType=%s, sensorDataIndex=%d.", code,
- ftl::enum_string(sensorType).c_str(), sensorDataIndex);
-#endif
+ ALOGD_IF(DEBUG_PARSER, "Parsed sensor: abs code=%d, sensorType=%s, sensorDataIndex=%d.", code,
+ ftl::enum_string(sensorType).c_str(), sensorDataIndex);
Sensor sensor;
sensor.sensorType = sensorType;
@@ -596,4 +610,23 @@ status_t KeyLayoutMap::Parser::parseSensor() {
return NO_ERROR;
}
+// Parse the name of a required kernel config.
+// The layout won't be used if the specified kernel config is not present
+// Examples:
+// requires_kernel_config CONFIG_HID_PLAYSTATION
+status_t KeyLayoutMap::Parser::parseRequiredKernelConfig() {
+ String8 codeToken = mTokenizer->nextToken(WHITESPACE);
+ std::string configName = codeToken.string();
+
+ const auto result = mMap->mRequiredKernelConfigs.emplace(configName);
+ if (!result.second) {
+ ALOGE("%s: Duplicate entry for required kernel config %s.",
+ mTokenizer->getLocation().string(), configName.c_str());
+ return BAD_VALUE;
+ }
+
+ ALOGD_IF(DEBUG_PARSER, "Parsed required kernel config: name=%s", configName.c_str());
+ return NO_ERROR;
+}
+
} // namespace android
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-03 19:41:15 +0000