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/*
** Copyright 2016, The CyanogenMod Project
**
** Licensed under the Apache License, Version 2.0 (the "License");
** you may not use this file except in compliance with the License.
** You may obtain a copy of the License at
**
** http://www.apache.org/licenses/LICENSE-2.0
**
** Unless required by applicable law or agreed to in writing, software
** distributed under the License is distributed on an "AS IS" BASIS,
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
** See the License for the specific language governing permissions and
** limitations under the License.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#define _REALLY_INCLUDE_SYS__SYSTEM_PROPERTIES_H_
#include <sys/_system_properties.h>
#include "log.h"
#include "property_service.h"
#include "util.h"
#include "vendor_init.h"
#define STRCONV_(x) #x
#define STRCONV(x) "%" STRCONV_(x) "s"
#define PHONE_INFO "/factory/PhoneInfodisk/PhoneInfo_inf"
#define BUF_SIZE 64
/* Serial number */
#define SERIAL_PROP "ro.serialno"
#define SERIAL_OFFSET 0x00
#define SERIAL_LENGTH 17
/* Cpufreq */
#define MAX_CPU_FREQ "/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq"
#define LOW_CPU "1833000"
#define HIGH_CPU "2333000"
/* Zram */
#define ZRAM_PROP "ro.config.zram"
#define MEMINFO_FILE "/proc/meminfo"
#define MEMINFO_KEY "MemTotal:"
#define ZRAM_MEM_THRESHOLD 3000000
/* Intel kernel paths */
char const *intel_path[] = {
"/sys/kernel/fw_update/fw_info/ifwi_version",
"/sys/kernel/fw_update/fw_info/chaabi_version",
"/sys/kernel/fw_update/fw_info/mia_version",
"/sys/kernel/fw_update/fw_info/scu_bs_version",
"/sys/kernel/fw_update/fw_info/scu_version",
"/sys/kernel/fw_update/fw_info/ia32fw_version",
"/sys/kernel/fw_update/fw_info/valhooks_version",
"/sys/kernel/fw_update/fw_info/punit_version",
"/sys/kernel/fw_update/fw_info/ucode_version",
"/sys/kernel/fw_update/fw_info/pmic_nvm_version",
"/sys/devices/virtual/misc/watchdog/counter",
"/proc/sys/kernel/osrelease"
};
/* Intel props */
char const *intel_prop[] = {
"sys.ifwi.version",
"sys.chaabi.version",
"sys.mia.version",
"sys.scu_bs.version",
"sys.scu.version",
"sys.ia32fw.version",
"sys.valhooks.version",
"sys.punit.version",
"sys.ucode.version",
"sys.pmic_nvm.version",
"sys.watchdog.previous.counter",
"sys.kernel.version"
};
static int read_file2(const char *fname, char *data, int max_size)
{
int fd, rc;
if (max_size < 1)
return 0;
fd = open(fname, O_RDONLY);
if (fd < 0) {
ERROR("failed to open '%s'\n", fname);
return 0;
}
rc = read(fd, data, max_size -1);
if ((rc > 0) && (rc < max_size ))
data[rc] = '\0';
else
data[0] = '\0';
close(fd);
return 1;
}
static void get_serial()
{
int ret = 0;
char const *path = PHONE_INFO;
char buf[SERIAL_LENGTH + 1];
char value[BUF_SIZE];
prop_info *pi;
if(read_file2(path, buf, sizeof(buf))) {
if (strlen(buf) > 0) {
sscanf(buf, STRCONV(BUF_SIZE), value);
property_set(SERIAL_PROP,value);
}
}
}
static void configure_zram() {
char buf[128];
FILE *f;
if ((f = fopen(MEMINFO_FILE, "r")) == NULL) {
ERROR("%s: Failed to open %s\n", __func__, MEMINFO_FILE);
return;
}
while (fgets(buf, sizeof(buf), f) != NULL) {
if (strncmp(buf, MEMINFO_KEY, strlen(MEMINFO_KEY)) == 0) {
int mem = atoi(&buf[strlen(MEMINFO_KEY)]);
const char *mode = mem < ZRAM_MEM_THRESHOLD ? "true" : "false";
INFO("%s: Found total memory to be %d kb, zram enabled: %s\n", __func__, mem, mode);
property_set(ZRAM_PROP, mode);
break;
}
}
fclose(f);
}
static void intel_props() {
char buf[BUF_SIZE];
char value[BUF_SIZE];
for(int i=0; i<12; i++) {
if(read_file2(intel_path[i], buf, sizeof(buf))) {
sscanf(buf, STRCONV(BUF_SIZE), value);
property_set(intel_prop[i],value);
}
}
}
void set_feq_values()
{
char buf[BUF_SIZE];
if(read_file2(MAX_CPU_FREQ, buf, sizeof(buf))) {
if ( strncmp(buf, LOW_CPU, strlen(LOW_CPU)) == 0 ) {
property_set("ro.sys.perf.device.powersave", "1250000");
property_set("ro.sys.perf.device.touchboost", "500000");
property_set("ro.sys.perf.device.full", "1833000");
} else if ( strncmp(buf, HIGH_CPU, strlen(HIGH_CPU)) == 0 ) {
property_set("ro.sys.perf.device.powersave", "1500000");
property_set("ro.sys.perf.device.touchboost", "1833000");
property_set("ro.sys.perf.device.full", "2333000");
} else {
INFO("%s: Failed to get max cpu speed: %s\n", __func__, buf);
}
}
}
void vendor_load_properties()
{
get_serial();
configure_zram();
intel_props();
set_feq_values();
}
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