--- /dev/null
+CMAKE_MINIMUM_REQUIRED(VERSION 2.6)
+PROJECT(hal-backend-power-vim3 C)
+
+SET(LIBRARY_NAME "hal-backend-power")
+SET(CMAKE_VERBOSE_MAKEFILE ON)
+SET(PREFIX ${CMAKE_INSTALL_PREFIX})
+SET(HAL_LIBDIR ${CMAKE_HAL_LIBDIR_PREFIX})
+SET(HAL_LICENSEDIR ${CMAKE_HAL_LICENSEDIR_PREFIX})
+
+INCLUDE(FindPkgConfig)
+pkg_check_modules(pkgs REQUIRED
+ hal-api-common
+ hal-api-power
+)
+
+FOREACH(flag ${pkgs_CFLAGS})
+ SET(EXTRA_CFLAGS "${EXTRA_CFLAGS} ${flag}")
+ENDFOREACH(flag)
+SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${EXTRA_CFLAGS}")
+
+INCLUDE_DIRECTORIES(${PROJECT_SOURCE_DIR}/include)
+
+SET(SRCS
+ ${PROJECT_SOURCE_DIR}/src/${LIBRARY_NAME}.c
+ ${PROJECT_SOURCE_DIR}/src/sysfs.c)
+
+ADD_LIBRARY(${LIBRARY_NAME} SHARED ${SRCS})
+TARGET_LINK_LIBRARIES(${LIBRARY_NAME} ${pkgs_LDFLAGS} -ldl)
+
+
+SET(CONF_FILES
+ ${CMAKE_CURRENT_SOURCE_DIR}/scripts/pass.json
+ ${CMAKE_CURRENT_SOURCE_DIR}/scripts/pass-cpu0.json
+ ${CMAKE_CURRENT_SOURCE_DIR}/scripts/pass-cpu2.json
+ ${CMAKE_CURRENT_SOURCE_DIR}/scripts/pass-bus.json
+ ${CMAKE_CURRENT_SOURCE_DIR}/scripts/pass-gpu.json
+ ${CMAKE_CURRENT_SOURCE_DIR}/scripts/pass-memory.json)
+INSTALL(FILES ${CONF_FILES} DESTINATION /hal/etc/pass)
+INSTALL(FILES ${CMAKE_CURRENT_SOURCE_DIR}/scripts/pass-hal.conf DESTINATION /hal/lib/tmpfiles.d)
+INSTALL(FILES ${CMAKE_CURRENT_SOURCE_DIR}/LICENSE DESTINATION ${HAL_LICENSEDIR}/${PROJECT_NAME})
+INSTALL(TARGETS ${LIBRARY_NAME} DESTINATION ${HAL_LIBDIR} COMPONENT RuntimeLibraries)
--- /dev/null
+Copyright (c) 2000 - 2011 Samsung Electronics Co., Ltd. All rights reserved.
+
+ Apache License
+ Version 2.0, January 2004
+ http://www.apache.org/licenses/
+
+ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+ 1. Definitions.
+
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+ 5. Submission of Contributions. Unless You explicitly state otherwise,
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+ 7. Disclaimer of Warranty. Unless required by applicable law or
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+ 8. Limitation of Liability. In no event and under no legal theory,
+ whether in tort (including negligence), contract, or otherwise,
+ unless required by applicable law (such as deliberate and grossly
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+ incurred by, or claims asserted against, such Contributor by reason
+ of your accepting any such warranty or additional liability.
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+ APPENDIX: How to apply the Apache License to your work.
+
+ To apply the Apache License to your work, attach the following
+ boilerplate notice, with the fields enclosed by brackets "[]"
+ replaced with your own identifying information. (Don't include
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+ comment syntax for the file format. We also recommend that a
+ file or class name and description of purpose be included on the
+ same "printed page" as the copyright notice for easier
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+ Copyright [yyyy] [name of copyright owner]
+
+ 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.
--- /dev/null
+<manifest>
+ <request>
+ <domain name="_"/>
+ </request>
+</manifest>
--- /dev/null
+%define version 1.1.0
+%define release 1
+
+Name: hal-backend-power-vim3
+Summary: Power HAL for standard linux interface
+Version: %{version}
+Release: %{release}
+Group: System/Hardware Adaptation
+License: Apache-2.0
+Source0: %{name}-%{version}.tar.gz
+Source1: %{name}.manifest
+
+Requires(post): /sbin/ldconfig
+Requires(post): /bin/systemctl
+Requires(post): security-config
+Requires(postun): /sbin/ldconfig
+Requires(postun): /bin/systemctl
+BuildRequires: cmake
+BuildRequires: pkgconfig(hal-api-common)
+BuildRequires: pkgconfig(hal-api-power)
+
+%description
+PASS standard hal
+
+%prep
+%setup -q
+cp %{SOURCE1} .
+
+%build
+%cmake . -DCMAKE_INSTALL_PREFIX=%{_prefix} \
+ -DCMAKE_HAL_LIBDIR_PREFIX=%{_hal_libdir} \
+ -DCMAKE_HAL_LICENSEDIR_PREFIX=%{_hal_licensedir} \
+
+make %{?jobs:-j%jobs}
+
+%install
+rm -rf %{buildroot}
+
+%make_install
+
+%post
+/sbin/ldconfig
+systemd-tmpfiles /hal/lib/tmpfiles.d/pass-hal.conf --create
+if [ -f %{_unitdir}/pass.service ]; then
+ systemctl try-restart pass.service
+fi
+
+%postun
+/sbin/ldconfig
+if [ -f %{_unitdir}/pass.service ]; then
+ systemctl try-restart pass.service
+fi
+
+%files
+%manifest %{name}.manifest
+%{_hal_licensedir}/%{name}/LICENSE
+%{_hal_libdir}/*.so
+/hal/lib/tmpfiles.d/pass-hal.conf
+%config %{_hal_sysconfdir}/pass/pass.json
+%config %{_hal_sysconfdir}/pass/pass-cpu0.json
+%config %{_hal_sysconfdir}/pass/pass-cpu2.json
+%config %{_hal_sysconfdir}/pass/pass-bus.json
+%config %{_hal_sysconfdir}/pass/pass-gpu.json
+%config %{_hal_sysconfdir}/pass/pass-memory.json
--- /dev/null
+{
+ "support" : true,
+ "init_level" : 0,
+ "level_list" :
+ [
+ {
+ "level" : 0,
+ "dvfs,minimum_frequency_khz" : 804000,
+ "dvfs,maximum_frequency_khz" : 804000
+ }
+ ],
+
+ "pmqos_support" : true,
+ "pmqos_scenario_list":
+ [
+ {
+ "name" : "AppLaunch",
+ "target_level" : 0
+ }, {
+ "name" : "UltraPowerSaving",
+ "target_level" : 0
+ }, {
+ "name" : "Performance",
+ "target_level" : 0
+ }
+ ],
+
+ "thermal_support" : false,
+ "cpuhp_support" : false
+}
--- /dev/null
+{
+ "support" : true,
+ "init_level" : 0,
+ "level_list" :
+ [
+ {
+ "level" : 0,
+ "dvfs,minimum_frequency_khz" : 500000,
+ "dvfs,maximum_frequency_khz" : 1800000
+ }, {
+ "level" : 1,
+ "dvfs,minimum_frequency_khz" : 1398000,
+ "dvfs,maximum_frequency_khz" : 1800000
+ }, {
+ "level" : 2,
+ "dvfs,minimum_frequency_khz" : 1608000,
+ "dvfs,maximum_frequency_khz" : 1800000
+ }, {
+ "level" : 3,
+ "dvfs,minimum_frequency_khz" : 500000,
+ "dvfs,maximum_frequency_khz" : 667000
+ }
+ ],
+
+ "pmqos_support" : true,
+ "pmqos_scenario_list":
+ [
+ {
+ "name" : "AppLaunch",
+ "target_level" : 1
+ }, {
+ "name" : "UltraPowerSaving",
+ "target_level" : 3
+ }, {
+ "name" : "Performance",
+ "target_level" : 2
+ }
+ ],
+
+ "thermal_support" : false,
+ "cpuhp_support" : false
+}
--- /dev/null
+{
+ "support" : true,
+ "init_level" : 0,
+ "level_list" :
+ [
+ {
+ "level" : 0,
+ "dvfs,minimum_frequency_khz" : 500000,
+ "dvfs,maximum_frequency_khz" : 2208000
+ }, {
+ "level" : 1,
+ "dvfs,minimum_frequency_khz" : 1608000,
+ "dvfs,maximum_frequency_khz" : 2208000
+ }, {
+ "level" : 2,
+ "dvfs,minimum_frequency_khz" : 2016000,
+ "dvfs,maximum_frequency_khz" : 2208000
+ }, {
+ "level" : 3,
+ "dvfs,minimum_frequency_khz" : 500000,
+ "dvfs,maximum_frequency_khz" : 1000000
+ }
+ ],
+
+ "pmqos_support" : true,
+ "pmqos_scenario_list":
+ [
+ {
+ "name" : "AppLaunch",
+ "target_level" : 1
+ }, {
+ "name" : "UltraPowerSaving",
+ "target_level" : 3
+ }, {
+ "name" : "Performance",
+ "target_level" : 2
+ }
+ ],
+
+ "thermal_support" : false,
+ "cpuhp_support" : false
+}
--- /dev/null
+{
+ "support" : true,
+ "init_level" : 0,
+ "level_list" :
+ [
+ {
+ "level" : 0,
+ "dvfs,minimum_frequency_khz" : 800000,
+ "dvfs,maximum_frequency_khz" : 800000
+ }, {
+ "level" : 1,
+ "dvfs,minimum_frequency_khz" : 666000,
+ "dvfs,maximum_frequency_khz" : 666000
+ }, {
+ "level" : 2,
+ "dvfs,minimum_frequency_khz" : 500000,
+ "dvfs,maximum_frequency_khz" : 500000
+ }, {
+ "level" : 3,
+ "dvfs,minimum_frequency_khz" : 400000,
+ "dvfs,maximum_frequency_khz" : 400000
+ }
+ ],
+
+ "pmqos_support" : true,
+ "pmqos_scenario_list":
+ [
+ {
+ "name" : "AppLaunch",
+ "target_level" : 0
+ }, {
+ "name" : "UltraPowerSaving",
+ "target_level" : 3
+ }, {
+ "name" : "Performance",
+ "target_level" : 0
+ }
+ ],
+
+ "thermal_support" : false,
+ "cpuhp_support" : false
+}
--- /dev/null
+z /sys/devices/system/cpu/*/online 0660 root system_fw -
+t /sys/devices/system/cpu/*/online - - - - security.SMACK64="System::Shared"
+z /sys/devices/system/cpu/*/cpufreq/scaling_available_governors 0440 root system_fw -
+t /sys/devices/system/cpu/*/cpufreq/scaling_available_governors - - - - security.SMACK64="System::Shared"
+z /sys/devices/system/cpu/*/cpufreq/cpuinfo_cur_freq 0440 root system_fw -
+t /sys/devices/system/cpu/*/cpufreq/cpuinfo_cur_freq - - - - security.SMACK64="System::Shared"
+z /sys/devices/system/cpu/*/cpufreq/cpuinfo_min_freq 0440 root system_fw -
+t /sys/devices/system/cpu/*/cpufreq/cpuinfo_min_freq - - - - security.SMACK64="System::Shared"
+z /sys/devices/system/cpu/*/cpufreq/cpuinfo_max_freq 0440 root system_fw -
+t /sys/devices/system/cpu/*/cpufreq/cpuinfo_max_freq - - - - security.SMACK64="System::Shared"
+z /sys/devices/system/cpu/*/cpufreq/scaling_governor 0660 root system_fw -
+t /sys/devices/system/cpu/*/cpufreq/scaling_governor - - - - security.SMACK64="System::Shared"
+z /sys/devices/system/cpu/*/cpufreq/scaling_min_freq 0660 root system_fw -
+t /sys/devices/system/cpu/*/cpufreq/scaling_min_freq - - - - security.SMACK64="System::Shared"
+z /sys/devices/system/cpu/*/cpufreq/scaling_max_freq 0660 root system_fw -
+t /sys/devices/system/cpu/*/cpufreq/scaling_max_freq - - - - security.SMACK64="System::Shared"
+z /sys/devices/system/cpu/*/cpufreq/ondemand/up_threshold 0660 root system_fw -
+t /sys/devices/system/cpu/*/cpufreq/ondemand/up_threshold - - - - security.SMACK64="System::Shared"
+z /sys/devices/system/cpu/*/cpufreq/ondemand/sampling_rate 0660 root system_fw -
+t /sys/devices/system/cpu/*/cpufreq/ondemand/sampling_rate - - - - security.SMACK64="System::Shared"
+z /sys/class/thermal/*/temp 0440 root system_fw -
+t /sys/class/thermal/*/temp - - - - security.SMACK64="System::Shared"
+z /sys/class/thermal/*/policy 0440 root system_fw -
+t /sys/class/thermal/*/policy - - - - security.SMACK64="System::Shared"
+z /sys/kernel/debug/cpufreq/*/load_table 0440 root system_fw -
+t /sys/kernel/debug/cpufreq/*/load_table - - - - security.SMACK64="System::Shared"
+z /sys/kernel/debug/cpufreq/*/load_table 0440 root system_fw -
+t /sys/kernel/debug/cpufreq/*/load_table - - - - security.SMACK64="System::Shared"
+z /sys/devices/platform/soc/*/devfreq/*/cur_freq 0440 root system_fw -
+t /sys/devices/platform/soc/*/devfreq/*/cur_freq - - - - security.SMACK64="System::Shared"
+z /sys/devices/platform/soc/*/devfreq/*/governor 0660 root system_fw -
+t /sys/devices/platform/soc/*/devfreq/*/governor - - - - security.SMACK64="System::Shared"
+z /sys/devices/platform/soc/*/devfreq/*/min_freq 0660 root system_fw -
+t /sys/devices/platform/soc/*/devfreq/*/min_freq - - - - security.SMACK64="System::Shared"
+z /sys/devices/platform/soc/*/devfreq/*/max_freq 0660 root system_fw -
+t /sys/devices/platform/soc/*/devfreq/*/max_freq - - - - security.SMACK64="System::Shared"
+z /sys/devices/platform/soc/*/devfreq/*/polling_interval 0660 root system_fw -
+t /sys/devices/platform/soc/*/devfreq/*/polling_interval - - - - security.SMACK64="System::Shared"
+z /sys/devices/platform/soc/*/devfreq/*/available_frequencies 0440 root system_fw -
+t /sys/devices/platform/soc/*/devfreq/*/available_frequencies - - - - security.SMACK64="System::Shared"
+z /sys/kernel/debug/fault_around_bytes 0660 root system_fw -
+t /sys/kernel/debug/fault_around_bytes - - - - security.SMACK64="System::Shared"
+z /sys/class/aml_ddr/freq 0440 root system_fw -
+t /sys/class/aml_ddr/freq - - - - security.SMACK64="System::Shared"
+z /sys/class/mpgpu/cur_freq 0440 root system_fw -
+t /sys/class/mpgpu/cur_freq - - - - security.SMACK64="System::Shared"
+z /sys/class/mpgpu/min_freq 0660 root system_fw -
+t /sys/class/mpgpu/min_freq - - - - security.SMACK64="System::Shared"
+z /sys/class/mpgpu/max_freq 0660 root system_fw -
+t /sys/class/mpgpu/max_freq - - - - security.SMACK64="System::Shared"
--- /dev/null
+{
+ "support" : true,
+ "init_level" : 0,
+ "level_list" :
+ [
+ {
+ "level" : 0,
+ "memory,fault_around_bytes" : 4096
+ }, {
+ "level" : 1,
+ "memory,fault_around_bytes" : 65536
+ }
+ ],
+
+ "pmqos_support" : true,
+ "pmqos_scenario_list" :
+ [
+ {
+ "name" : "AppLaunch",
+ "target_level" : 0
+ }, {
+ "name" : "UltraPowerSaving",
+ "target_level" : 0
+ }, {
+ "name" : "Performance",
+ "target_level" : 1
+ }
+ ],
+
+ "thermal_support" : false,
+
+ "cpuhp_support" : false
+}
--- /dev/null
+{
+ "device_list" :
+ [
+ {
+ "device_type" : "cpu",
+ "device_name" : "cpu0",
+ "device_config_path" : "/hal/etc/pass/pass-cpu0.json",
+ "thermal_device_name" : null,
+ "cpu,number_of_cpus" : 2,
+ "cpu,first_cpu" : 0,
+ "cpu,cpu_load_path" : null
+ }, {
+ "device_type" : "cpu",
+ "device_name" : "cpu2",
+ "device_config_path" : "/hal/etc/pass/pass-cpu2.json",
+ "thermal_device_name" : null,
+ "cpu,number_of_cpus" : 4,
+ "cpu,first_cpu" : 2,
+ "cpu,cpu_load_path" : null
+ }, {
+ "device_type" : "bus",
+ "device_name" : "ddr",
+ "device_config_path" : "/hal/etc/pass/pass-bus.json",
+ "thermal_device_name" : null
+ }, {
+ "device_type" : "gpu",
+ "device_name" : "mpgpu",
+ "device_config_path" : "/hal/etc/pass/pass-gpu.json",
+ "thermal_device_name" : null
+ }, {
+ "device_type" : "memory",
+ "device_name" : "memory",
+ "device_config_path" : "/hal/etc/pass/pass-memory.json"
+ }
+ ]
+}
--- /dev/null
+/*
+ * HAL backend for hal-api-power which is used for PASS daemon
+ *
+ * Copyright (c) 2021 Samsung Electronics Co., Ltd.
+ *
+ * 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 <errno.h>
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <hal/hal-power-interface.h>
+
+#include "sysfs.h"
+
+#define BUFF_MAX 255
+
+/*************************
+ * H/W Resource Defintions
+ */
+#define CPUFREQ_PATH_PREFIX "/sys/devices/system/cpu/"
+#define CPUFREQ_CURR_GOVERNOR_PATH_SUFFIX "/cpufreq/scaling_governor"
+
+/*
+ * The cpuinfo_cur_freq indicates the actual operating CPU freqeuncy
+ * and scaling_cur_freq is the CPU frequency set by the CPUFREQ policy.
+ */
+#define CPUFREQ_CURR_FREQ_PATH_SUFFIX "/cpufreq/cpuinfo_cur_freq"
+#define CPUFREQ_AVAILABLE_MIN_FREQ_PATH_SUFFIX "/cpufreq/cpuinfo_min_freq"
+#define CPUFREQ_AVAILABLE_MAX_FREQ_PATH_SUFFIX "/cpufreq/cpuinfo_max_freq"
+#define CPUFREQ_MIN_FREQ_PATH_SUFFIX "/cpufreq/scaling_min_freq"
+#define CPUFREQ_MAX_FREQ_PATH_SUFFIX "/cpufreq/scaling_max_freq"
+#define CPUFREQ_UP_THRESHOLD_PATH_SUFFIX "/cpufreq/ondemand/up_threshold"
+
+#define CPU_ONLINE_PATH_PREFIX "/sys/devices/system/cpu/cpu"
+#define CPU_ONLINE_PATH_SUFFIX "/online"
+#define CPU_ONLINE_STATE_ON 1
+#define CPU_ONLINE_STATE_OFF 0
+
+#define TMU_PATH_PREFIX "/sys/class/thermal/"
+#define TMU_TEMP_PATH_SUFFIX "/temp"
+#define TMU_POLICY_PATH_SUFFIX "/policy"
+#define TMU_MAX_TEMP_MASK 0xFFFFF
+
+#define FAULT_AROUND_BYTES_PATH "/sys/kernel/debug/fault_around_bytes"
+
+static int get_path(char *path, char *prefix, char *res_name, char *suffix)
+{
+ int ret;
+
+ if (!path || !prefix || !res_name || !suffix)
+ return -EINVAL;
+
+ ret = snprintf(path, PATH_MAX, "%s%s%s", prefix, res_name, suffix);
+ if (ret <= 0)
+ return -EINVAL;
+
+ path[PATH_MAX - 1] = '\0';
+
+ return 0;
+}
+
+static int __handle_value_string(int is_write, char *prefix, char *res_name, char *suffix, char *buf)
+{
+ char path[PATH_MAX];
+ int ret;
+
+ if (!buf)
+ return -EINVAL;
+
+ ret = get_path(path, prefix, res_name, suffix);
+ if (ret < 0)
+ return ret;
+
+ if (!!is_write)
+ ret = sysfs_write_str(path, buf);
+ else
+ ret = sysfs_read_str(path, buf, BUFF_MAX);
+
+ return (ret < 0) ? ret : 0;
+}
+
+static int get_value_string(char *prefix, char *res_name, char *suffix, char *buf)
+{
+ return __handle_value_string(0, prefix, res_name, suffix, buf);
+}
+
+static int set_value_string(char *prefix, char *res_name, char *suffix, char *buf)
+{
+ return __handle_value_string(1, prefix, res_name, suffix, buf);
+}
+
+static int get_value_integer(char *prefix, char *res_name, char *suffix, int *value)
+{
+ char path[PATH_MAX];
+ int ret;
+
+ if (!value)
+ return -EINVAL;
+
+ ret = get_path(path, prefix, res_name, suffix);
+ if (ret < 0)
+ return ret;
+
+ ret = sysfs_read_int(path, value);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static int set_value_integer(char *prefix, char *res_name, char *suffix, int value)
+{
+ char path[PATH_MAX];
+ int ret;
+
+ ret = get_path(path, prefix, res_name, suffix);
+ if (ret < 0)
+ return ret;
+
+ ret = sysfs_write_int(path, value);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+/*************************************************
+ * HAL backend implementation for CPU H/W Resource
+ */
+static int cpufreq_dvfs_get_curr_governor(char *res_name, char *governor)
+{
+ int ret;
+
+ ret = get_value_string(CPUFREQ_PATH_PREFIX, res_name,
+ CPUFREQ_CURR_GOVERNOR_PATH_SUFFIX, governor);
+ return (ret < 0) ? ret : 0;
+}
+
+static int cpufreq_dvfs_set_curr_governor(char *res_name, char *governor)
+{
+ int ret;
+
+ ret = set_value_string(CPUFREQ_PATH_PREFIX, res_name,
+ CPUFREQ_CURR_GOVERNOR_PATH_SUFFIX, governor);
+ return (ret < 0) ? ret : 0;
+}
+
+static int cpufreq_dvfs_get_curr_freq(char *res_name)
+{
+ int freq, ret;
+
+ ret = get_value_integer(CPUFREQ_PATH_PREFIX, res_name,
+ CPUFREQ_CURR_FREQ_PATH_SUFFIX, &freq);
+ return (ret < 0) ? ret : freq;
+}
+
+static int cpufreq_dvfs_get_min_freq(char *res_name)
+{
+ int freq, ret;
+
+ ret = get_value_integer(CPUFREQ_PATH_PREFIX, res_name,
+ CPUFREQ_MIN_FREQ_PATH_SUFFIX, &freq);
+ return (ret < 0) ? ret : freq;
+}
+
+static int cpufreq_dvfs_set_min_freq(char *res_name, int freq)
+{
+ int ret;
+
+ if (freq < 0)
+ return -EINVAL;
+
+ ret = set_value_integer(CPUFREQ_PATH_PREFIX, res_name,
+ CPUFREQ_MIN_FREQ_PATH_SUFFIX, freq);
+ return (ret < 0) ? ret : 0;
+}
+
+static int cpufreq_dvfs_get_max_freq(char *res_name)
+{
+ int freq, ret;
+
+ ret = get_value_integer(CPUFREQ_PATH_PREFIX, res_name,
+ CPUFREQ_MAX_FREQ_PATH_SUFFIX, &freq);
+ return (ret < 0) ? ret : freq;
+}
+
+static int cpufreq_dvfs_set_max_freq(char *res_name, int freq)
+{
+ int ret;
+
+ if (freq < 0)
+ return -EINVAL;
+
+ ret = set_value_integer(CPUFREQ_PATH_PREFIX, res_name,
+ CPUFREQ_MAX_FREQ_PATH_SUFFIX, freq);
+ return (ret < 0) ? ret : 0;
+}
+
+static int cpufreq_dvfs_get_available_min_freq(char *res_name)
+{
+ int val, ret;
+
+ ret = get_value_integer(CPUFREQ_PATH_PREFIX, res_name,
+ CPUFREQ_AVAILABLE_MIN_FREQ_PATH_SUFFIX, &val);
+ return (ret < 0) ? ret : val;
+}
+
+static int cpufreq_dvfs_get_available_max_freq(char *res_name)
+{
+ int val, ret;
+
+ ret = get_value_integer(CPUFREQ_PATH_PREFIX, res_name,
+ CPUFREQ_AVAILABLE_MAX_FREQ_PATH_SUFFIX, &val);
+ return (ret < 0) ? ret : val;
+}
+
+static int cpufreq_dvfs_get_up_threshold(char *res_name)
+{
+ int val, ret;
+
+ ret = get_value_integer(CPUFREQ_PATH_PREFIX, res_name,
+ CPUFREQ_UP_THRESHOLD_PATH_SUFFIX, &val);
+ return (ret < 0) ? ret : val;
+}
+
+static int cpufreq_dvfs_set_up_threshold(char *res_name, int up_threshold)
+{
+ int ret;
+
+ if (up_threshold < 0)
+ return -EINVAL;
+
+ ret = set_value_integer(CPUFREQ_PATH_PREFIX, res_name,
+ CPUFREQ_UP_THRESHOLD_PATH_SUFFIX, up_threshold);
+ return (ret < 0) ? ret : 0;
+}
+
+static struct pass_resource_dvfs_ops cpufreq_dvfs_ops = {
+ .get_curr_governor = cpufreq_dvfs_get_curr_governor,
+ .set_curr_governor = cpufreq_dvfs_set_curr_governor,
+ .get_curr_freq = cpufreq_dvfs_get_curr_freq,
+ .get_min_freq = cpufreq_dvfs_get_min_freq,
+ .set_min_freq = cpufreq_dvfs_set_min_freq,
+ .get_max_freq = cpufreq_dvfs_get_max_freq,
+ .set_max_freq = cpufreq_dvfs_set_max_freq,
+ .get_available_min_freq = cpufreq_dvfs_get_available_min_freq,
+ .get_available_max_freq = cpufreq_dvfs_get_available_max_freq,
+ .get_up_threshold = cpufreq_dvfs_get_up_threshold,
+ .set_up_threshold = cpufreq_dvfs_set_up_threshold,
+};
+
+static int cpu_hotplug_get_online_state(char *res_name, int cpu)
+{
+ char path[PATH_MAX];
+ int ret, online;
+
+ if ((!res_name))
+ return -EINVAL;
+
+ snprintf(path, PATH_MAX, "%s%d%s",
+ CPU_ONLINE_PATH_PREFIX,
+ cpu,
+ CPU_ONLINE_PATH_SUFFIX);
+
+ ret = sysfs_read_int(path, &online);
+ if (ret < 0)
+ return ret;
+
+ return online;
+}
+
+static int cpu_hotplug_set_online_state(char *res_name, int cpu, int on)
+{
+ char path[PATH_MAX];
+ int ret;
+
+ if ((!res_name))
+ return -EINVAL;
+ if ((on != CPU_ONLINE_STATE_ON) && (on != CPU_ONLINE_STATE_OFF))
+ return -EINVAL;
+
+ /*
+ * NOTE: Exynos SoC series cannot turn off the CPU0
+ * because of h/w design. To prevent the critical problem,
+ * if someone try to turn off the CPU0, just return without any
+ * opertaion.
+ */
+ if (on == 0 && cpu == 0) {
+ return 0;
+ }
+
+ snprintf(path, PATH_MAX, "%s%d%s",
+ CPU_ONLINE_PATH_PREFIX,
+ cpu,
+ CPU_ONLINE_PATH_SUFFIX);
+
+ ret = sysfs_write_int(path, on);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static struct pass_resource_hotplug_ops cpu_hotplus_ops = {
+ .get_online_state = cpu_hotplug_get_online_state,
+ .set_online_state = cpu_hotplug_set_online_state,
+};
+
+static int tmu_get_temp(char *res_thermal_name)
+{
+ int temp, ret;
+
+ ret = get_value_integer(TMU_PATH_PREFIX, res_thermal_name,
+ TMU_TEMP_PATH_SUFFIX, &temp);
+ if (ret < 0)
+ return ret;
+
+ /*
+ * Thermal framework provides the current temperature
+ * as five digits interger like 54430 when temperature is 54.430
+ * degrees centigrade. But, Thermal Monitor in Tizen usually
+ * use two digits interger without decimal point.
+ * So that round temperature value. It constraints the maximume
+ * temperature as 1048 degrees centigrade for preventing integer
+ * overflow. Usually, the embedded device never over 1000 degrees
+ * centigrade.
+ */
+ return (((temp & TMU_MAX_TEMP_MASK) + 500) / 1000);
+}
+
+static int tmu_get_policy(char *res_thermal_name, char *policy)
+{
+ int ret;
+
+ if (!policy)
+ return -EINVAL;
+
+ ret = get_value_string(TMU_PATH_PREFIX, res_thermal_name,
+ TMU_POLICY_PATH_SUFFIX, policy);
+ return (ret < 0) ? ret : 0;
+}
+
+static struct pass_resource_tmu_ops tmu_ops = {
+ .get_temp = tmu_get_temp,
+ .get_policy = tmu_get_policy,
+};
+
+/*****************************************************
+ * HAL backend implementation for BUS/GPU H/W Resource
+ */
+
+static int bus_dvfs_get_curr_freq(char *res_name)
+{
+ char buf[BUFF_MAX + 1];
+ char unit[BUFF_MAX + 1];
+ int ret, freq;
+
+ ret = sysfs_read_str("/sys/class/aml_ddr/freq", buf, BUFF_MAX);
+ if (ret < 0)
+ return ret;
+
+ sscanf(buf, "%d %s", &freq, unit);
+
+ return (freq * 1000);
+}
+
+static int gpu_freq_table[] = {
+ 400000,
+ 400000,
+ 500000,
+ 666000,
+ 800000,
+};
+
+static int gpu_dvfs_get_min_freq(char *res_name)
+{
+ int freq, ret;
+
+ ret = sysfs_read_int("/sys/class/mpgpu/min_freq", &freq);
+ if (ret < 0)
+ return ret;
+ return (ret < 0) ? ret : (gpu_freq_table[freq]);
+}
+
+static int gpu_dvfs_get_max_freq(char *res_name)
+{
+ int freq, ret;
+
+ ret = sysfs_read_int("/sys/class/mpgpu/max_freq", &freq);
+ if (ret < 0)
+ return ret;
+ return (ret < 0) ? ret : gpu_freq_table[freq];
+}
+
+static int gpu_dvfs_get_curr_freq(char *res_name)
+{
+ int freq, ret;
+
+ ret = sysfs_read_int("/sys/class/mpgpu/cur_freq", &freq);
+ if (ret < 0)
+ return ret;
+ return (ret < 0) ? ret : (freq * 1000);
+}
+
+static struct pass_resource_dvfs_ops bus_dvfs_ops = {
+ .get_curr_freq = bus_dvfs_get_curr_freq,
+ .get_min_freq = bus_dvfs_get_curr_freq,
+ .get_max_freq = bus_dvfs_get_curr_freq,
+};
+
+static struct pass_resource_dvfs_ops gpu_dvfs_ops = {
+ .get_curr_freq = gpu_dvfs_get_curr_freq,
+ .get_min_freq = gpu_dvfs_get_min_freq,
+ .get_max_freq = gpu_dvfs_get_max_freq,
+};
+
+/****************************************************
+ * HAL backend implementation for Memory H/W Resource
+ */
+static int memory_get_fault_around_bytes(char *res_name)
+{
+ int ret, fault_around_bytes;
+
+ if (!res_name)
+ return -EINVAL;
+
+ ret = sysfs_read_int(FAULT_AROUND_BYTES_PATH, &fault_around_bytes);
+ if (ret < 0)
+ return ret;
+
+ return fault_around_bytes;
+}
+
+static int memory_set_fault_around_bytes(char *res_name,
+ int fault_around_bytes)
+{
+ int ret;
+
+ if ((!res_name) || (fault_around_bytes <= 0))
+ return -EINVAL;
+
+ ret = sysfs_write_int(FAULT_AROUND_BYTES_PATH, fault_around_bytes);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+/************************
+ * HAL backend power data
+ */
+static int power_init(void **data)
+{
+ hal_backend_power_funcs *power_funcs = NULL;
+ struct pass_resource_cpu *cpu = NULL;
+ struct pass_resource_bus *bus = NULL;
+ struct pass_resource_gpu *gpu = NULL;
+ struct pass_resource_memory *memory = NULL;
+ int ret;
+
+ /* Allocate memory */
+ power_funcs = calloc(1, sizeof(hal_backend_power_funcs));
+ if (!power_funcs)
+ return -ENOMEM;
+
+ cpu = calloc(1, sizeof(struct pass_resource_cpu));
+ if (!cpu) {
+ ret = -ENOMEM;
+ goto err_funcs;
+ }
+
+ bus = calloc(1, sizeof(struct pass_resource_bus));
+ if (!bus) {
+ ret = -ENOMEM;
+ goto err_cpu;
+ }
+
+ gpu = calloc(1, sizeof(struct pass_resource_gpu));
+ if (!gpu) {
+ ret = -ENOMEM;
+ goto err_bus;
+ }
+
+ memory = calloc(1, sizeof(struct pass_resource_memory));
+ if (!memory) {
+ ret = -ENOMEM;
+ goto err_gpu;
+ }
+
+ /* Initialize each h/w resource */
+ cpu->dvfs = cpufreq_dvfs_ops;
+ cpu->hotplug = cpu_hotplus_ops;
+ cpu->tmu = tmu_ops;
+
+ bus->dvfs = bus_dvfs_ops;
+ bus->tmu = tmu_ops;
+
+ gpu->dvfs = gpu_dvfs_ops;
+ gpu->tmu = tmu_ops;
+
+ memory->get_fault_around_bytes = memory_get_fault_around_bytes;
+ memory->set_fault_around_bytes = memory_set_fault_around_bytes;
+
+ /* Initialize hal_backend_power_funcs */
+ power_funcs->cpu = cpu;
+ power_funcs->bus = bus;
+ power_funcs->gpu = gpu;
+ power_funcs->memory = memory;
+
+ *data = (void *)power_funcs;
+
+ return 0;
+
+err_gpu:
+ if (gpu)
+ free(gpu);
+err_bus:
+ if (bus)
+ free(bus);
+err_cpu:
+ if (cpu)
+ free(cpu);
+err_funcs:
+ free(power_funcs);
+
+ return ret;
+}
+
+static int power_exit(void *data)
+{
+ hal_backend_power_funcs *funcs;
+
+ if (!data)
+ return -EINVAL;
+
+ funcs = (hal_backend_power_funcs *)data;
+
+ if (funcs->cpu)
+ free(funcs->cpu);
+ if (funcs->bus)
+ free(funcs->bus);
+ if (funcs->gpu)
+ free(funcs->gpu);
+ if (funcs->memory)
+ free(funcs->memory);
+
+ free(funcs);
+
+ return 0;
+}
+
+hal_backend hal_backend_power_data = {
+ .name = "hal-backend-power-vim3",
+ .vendor = "amlogic",
+ .abi_version = HAL_ABI_VERSION_TIZEN_6_5,
+ .init = power_init,
+ .exit = power_exit,
+};
--- /dev/null
+/*
+ * PASS (Power Aware System Service)
+ *
+ * Copyright (c) 2017 Samsung Electronics Co., Ltd.
+ *
+ * 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 <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "sysfs.h"
+
+static int sysfs_read_buf(char *path, char *buf, int len)
+{
+ int r, fd;
+
+ if ((!path) || (!buf) || (len < 0))
+ return -EINVAL;
+
+ fd = open(path, O_RDONLY);
+ if (fd == -1)
+ return -ENOENT;
+
+ r = read(fd, buf, len);
+ close(fd);
+
+ if (r < 0)
+ return r;
+ if (r > len)
+ return -EIO;
+
+ buf[r] = '\0';
+
+ return 0;
+}
+
+static int sysfs_write_buf(char *path, char *buf)
+{
+ int w, fd;
+
+ if ((!path) || (!buf))
+ return -EINVAL;
+
+ fd = open(path, O_WRONLY);
+ if (fd == -1)
+ return -ENOENT;
+
+ w = write(fd, buf, strlen(buf));
+ close(fd);
+
+ if (w < 0)
+ return w;
+
+ return 0;
+}
+
+int sysfs_read_int(char *path, int *val)
+{
+ char buf[MAX_BUF_SIZE + 1];
+ int r;
+
+ if ((!path) || (!val))
+ return -EINVAL;
+
+ r = sysfs_read_buf(path, buf, MAX_BUF_SIZE);
+ if (r < 0)
+ return r;
+
+ *val = atoi(buf);
+ return 0;
+}
+
+int sysfs_read_str(char *path, char *str, int len)
+{
+ int r;
+
+ if ((!path) || (!str) || (len <= 0))
+ return -EINVAL;
+
+ r = sysfs_read_buf(path, str, len);
+ if (r < 0)
+ return r;
+
+ return 0;
+}
+
+int sysfs_write_int(char *path, int val)
+{
+ char buf[MAX_BUF_SIZE + 1];
+ int w;
+
+ if (!path)
+ return -EINVAL;
+
+ snprintf(buf, MAX_BUF_SIZE, "%d", val);
+ w = sysfs_write_buf(path, buf);
+ if (w < 0)
+ return w;
+
+ return 0;
+}
+
+int sysfs_write_str(char *path, char *str)
+{
+ int w;
+
+ if ((!path) || (!str))
+ return -EINVAL;
+
+ w = sysfs_write_buf(path, str);
+ if (w < 0)
+ return w;
+
+ return 0;
+}
--- /dev/null
+#define MAX_BUF_SIZE 255
+
+int sysfs_read_int(char *path, int *val);
+int sysfs_read_str(char *path, char *str, int len);
+int sysfs_write_int(char *path, int val);
+int sysfs_write_str(char *path, char *str);
projects / platform / hal / backend / vim3 / power-vim3.git / commitdiff