storaged: add support for ufs health info (5227efa2) · Commits · e / os / android_system_core

storaged/include/storaged_info.h

+8 −0

Original line number	Diff line number	Diff line
		@@ -52,6 +52,14 @@ public:
		bool report_debugfs();
		};

		class ufs_info_t : public storage_info_t {
		private:
		const string health_file = "/sys/devices/soc/624000.ufshc/health";
		public:
		virtual ~ufs_info_t() {}
		bool report();
		};

		void report_storage_health();

		#endif /* _STORAGED_INFO_H_ */

+52 −1

Original line number	Diff line number	Diff line
		@@ -22,6 +22,7 @@
		#include <android-base/file.h>
		#include <android-base/parseint.h>
		#include <android-base/logging.h>
		#include <android-base/strings.h>
		#include <log/log_event_list.h>

		#include "storaged.h"
		@@ -32,7 +33,10 @@ using namespace android::base;
		void report_storage_health()
		{
		emmc_info_t mmc;
		ufs_info_t ufs;

		mmc.report();
		ufs.report();
		}

		void storage_info_t::publish()
		@@ -131,3 +135,50 @@ bool emmc_info_t::report_debugfs()

		return true;
		}

		bool ufs_info_t::report()
		{
		string buffer;
		if (!ReadFileToString(health_file, &buffer)) {
		return false;
		}

		vector<string> lines = Split(buffer, "\n");
		if (lines.empty()) {
		return false;
		}

		char rev[8];
		if (sscanf(lines[0].c_str(), "ufs version: 0x%7s\n", rev) < 1) {
		return false;
		}

		version = "ufs " + string(rev);

		for (size_t i = 1; i < lines.size(); i++) {
		char token[32];
		uint16_t val;
		int ret;
		if ((ret = sscanf(lines[i].c_str(),
		"Health Descriptor[Byte offset 0x%*d]: %31s = 0x%hx",
		token, &val)) < 2) {
		continue;
		}

		if (string(token) == "bPreEOLInfo") {
		eol = val;
		} else if (string(token) == "bDeviceLifeTimeEstA") {
		lifetime_a = val;
		} else if (string(token) == "bDeviceLifeTimeEstB") {
		lifetime_b = val;
		}
		}

		if (eol == 0 \|\| (lifetime_a == 0 && lifetime_b == 0)) {
		return false;
		}

		publish();
		return true;
		}