CMAKE_MINIMUM_REQUIRED(VERSION 2.6)
PROJECT(pass-hal-tw3 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})
-SET(PKG_MODULES
- dlog)
INCLUDE(FindPkgConfig)
-pkg_check_modules(pkgs REQUIRED ${PKG_MODULES})
+pkg_check_modules(pkgs REQUIRED
+ dlog
+ hal-api-common
+ hal-api-power
+)
FOREACH(flag ${pkgs_CFLAGS})
SET(EXTRA_CFLAGS "${EXTRA_CFLAGS} ${flag}")
ENDFOREACH(flag)
+SET(CMAKE_C_FLAGS "${CMAKE_CFLAGS} ${EXTRA_CFLAGS}")
-SET(PREFIX ${CMAKE_INSTALL_PREFIX})
-SET(DEST_DIR ${LIB_INSTALL_DIR}/pass)
+INCLUDE_DIRECTORIES(${PROJECT_SOURCE_DIR}/include)
+
+SET(SRCS
+ ${PROJECT_SOURCE_DIR}/src/${LIBRARY_NAME}.c
+ ${PROJECT_SOURCE_DIR}/src/sysfs.c)
-ADD_SUBDIRECTORY(src/cpu)
-ADD_SUBDIRECTORY(src/memory)
-ADD_SUBDIRECTORY(src/nonstandard)
+ADD_LIBRARY(${LIBRARY_NAME} SHARED ${SRCS})
+TARGET_LINK_LIBRARIES(${LIBRARY_NAME} ${pkgs_LDFLAGS} -ldl)
-SET(CONF_DIR /etc/pass)
SET(CONF_FILES
${CMAKE_CURRENT_SOURCE_DIR}/scripts/pass.conf
${CMAKE_CURRENT_SOURCE_DIR}/scripts/pass-resource0.conf
${CMAKE_CURRENT_SOURCE_DIR}/scripts/pass-resource1.conf
${CMAKE_CURRENT_SOURCE_DIR}/scripts/pass-resource2.conf)
-INSTALL(FILES ${CONF_FILES} DESTINATION ${CONF_DIR})
-INSTALL(FILES ${CMAKE_CURRENT_SOURCE_DIR}/scripts/pass-hal.conf DESTINATION ${LIB_INSTALL_DIR}/tmpfiles.d)
+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)
%define release 1
Name: pass-hal-tw3
-Summary: PASS hal for tw3
+Summary: Power HAL for TW3
Version: %{version}
Release: %{release}
Group: System/Hardware Adaptation
Requires(post): /sbin/ldconfig
Requires(post): /bin/systemctl
-Requires(post): security-config
Requires(postun): /sbin/ldconfig
Requires(postun): /bin/systemctl
-Requires: pass >= 1.1.0
-Requires: pass-hal-devel >= 1.1.0
BuildRequires: cmake
BuildRequires: pkgconfig(dlog)
-BuildRequires: pkgconfig(glib-2.0)
-BuildRequires: pkgconfig(pass-hal-devel)
+BuildRequires: pkgconfig(hal-api-common)
+BuildRequires: pkgconfig(hal-api-power)
%description
-PASS hal for tw3
+Power HAL for TW3
%prep
%setup -q
cp %{SOURCE1} .
%build
-%cmake . -DCMAKE_INSTALL_PREFIX=%{_prefix} -DHAL_VERSION=%{version}.%{release}
+%cmake . -DCMAKE_INSTALL_PREFIX=%{_prefix} \
+ -DCMAKE_HAL_LIBDIR_PREFIX=%{_hal_libdir} \
+ -DCMAKE_HAL_LICENSEDIR_PREFIX=%{_hal_licensedir} \
make %{?jobs:-j%jobs}
rm -rf %{buildroot}
%make_install
-
%post
/sbin/ldconfig
-systemd-tmpfiles %{_libdir}/tmpfiles.d/pass-hal.conf --create
+systemd-tmpfiles /hal/lib/tmpfiles.d/pass-hal.conf --create
if [ -f %{_unitdir}/pass.service ]; then
systemctl try-restart pass.service
fi
%files
%manifest %{name}.manifest
-%{_libdir}/pass/*.so
-%{_libdir}/tmpfiles.d/pass-hal.conf
-%config %{_sysconfdir}/pass/pass.conf
-%config %{_sysconfdir}/pass/pass-resource0.conf
-%config %{_sysconfdir}/pass/pass-resource1.conf
-%config %{_sysconfdir}/pass/pass-resource2.conf
+%{_hal_licensedir}/%{name}/LICENSE
+%{_hal_libdir}/*.so
+/hal/lib/tmpfiles.d/pass-hal.conf
+%config %{_hal_sysconfdir}/pass/pass.conf
+%config %{_hal_sysconfdir}/pass/pass-resource0.conf
+%config %{_hal_sysconfdir}/pass/pass-resource1.conf
+%config %{_hal_sysconfdir}/pass/pass-resource2.conf
pass_res_type=cpu
pass_res_name=cpu0
pass_res_thermal_name=ap_therm
-pass_path_conf_file=/etc/pass/pass-resource0.conf
+pass_path_conf_file=/hal/etc/pass/pass-resource0.conf
pass_first_cpu=0
pass_num_cpus=2
[PassResource1]
pass_res_type=memory
pass_res_name=memory
-pass_path_conf_file=/etc/pass/pass-resource1.conf
+pass_path_conf_file=/hal/etc/pass/pass-resource1.conf
[PassResource2]
pass_res_type=nonstandard
pass_res_name=trm
-pass_path_conf_file=/etc/pass/pass-resource2.conf
+pass_path_conf_file=/hal/etc/pass/pass-resource2.conf
+++ /dev/null
-CMAKE_MINIMUM_REQUIRED(VERSION 2.6)
-PROJECT(cpu C)
-
-INCLUDE(FindPkgConfig)
-pkg_check_modules(pkgs REQUIRED dlog glib-2.0)
-
-#HAL version
-string(REPLACE "." ";" HAL_VERSION_LIST ${HAL_VERSION})
-list(GET HAL_VERSION_LIST 0 HAL_VERSION_MAJOR)
-list(GET HAL_VERSION_LIST 1 HAL_VERSION_MINOR)
-list(GET HAL_VERSION_LIST 2 HAL_VERSION_REVISION)
-list(GET HAL_VERSION_LIST 3 HAL_VERSION_RELEASE)
-add_definitions(-DVER_MAJOR=${HAL_VERSION_MAJOR} -DVER_MINOR=${HAL_VERSION_MINOR})
-add_definitions(-DVER_REVISION=${HAL_VERSION_REVISION} -DVER_RELEASE=${HAL_VERSION_RELEASE})
-
-SET(EXTRA_CFLAGS "${EXTRA_CFLAGS} -fvisibility=hidden")
-SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${EXTRA_CFLAGS}")
-
-SET(SRCS ${PROJECT_NAME}.c
- ../shared/sysfs.c)
-
-ADD_LIBRARY(${PROJECT_NAME} MODULE ${SRCS})
-SET_TARGET_PROPERTIES(${PROJECT_NAME} PROPERTIES PREFIX "")
-INSTALL(TARGETS ${PROJECT_NAME} DESTINATION ${DEST_DIR} COMPONENT RuntimeLibraries)
+++ /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 <limits.h>
-#include <pass/hal.h>
-#include <pass/hal-log.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "../shared/sysfs.h"
-
-#define CPUFREQ_PATH_PREFIX "/sys/devices/system/cpu/"
-#define CPUFREQ_PMQOS_PATH_PREFIX "/sys/devices/system/cpu/cpufreq/pmqos"
-#define CPUFREQ_PATH_PREFIX "/sys/devices/system/cpu/"
-#define TMU_PATH_PREFIX "/sys/class/sec/temperature/"
-
-#define CPUFREQ_CPU_ONLINE_MIN_NUM_PATH_SUFFIX "/cpu_online_min"
-#define CPUFREQ_CPU_ONLINE_MAX_NUM_PATH_SUFFIX "/cpu_online_max"
-#define CPUFREQ_MAX_FREQ_PATH_SUFFIX "/cpufreq/scaling_max_freq"
-#define CPUFREQ_MIN_FREQ_PATH_SUFFIX "/cpufreq/scaling_min_freq"
-#define CPUFREQ_CURR_FREQ_PATH_SUFFIX "/cpufreq/cpuinfo_cur_freq"
-
-#define CPUFREQ_DEFAULT_MIN_FREQ 0
-#define CPUFREQ_DEFAULT_MAX_FREQ 1014000
-#define CPUFREQ_DEFAULT_ONLINE_MIN_NUM 0
-#define CPUFREQ_DEFAULT_ONLINE_MAX_NUM 2
-
-#define CPUFREQ_PMQOS_REQUEST_UNLOCK -1
-
-static int tw3_dvfs_get_curr_freq(char *res_name)
-{
- char path[PATH_MAX];
- int freq, ret;
-
- if (!res_name)
- return -EINVAL;
-
- snprintf(path, PATH_MAX, "%s%s%s",
- CPUFREQ_PATH_PREFIX,
- res_name,
- CPUFREQ_CURR_FREQ_PATH_SUFFIX);
-
- ret = sysfs_read_int(path, &freq);
- if (ret < 0)
- return ret;
-
- return freq;
-}
-
-static int tw3_dvfs_get_min_freq(char *res_name)
-{
- char path[PATH_MAX];
- int min_freq;
- int ret;
-
- if (!res_name)
- return -EINVAL;
-
- snprintf(path, PATH_MAX, "%s%s%s",
- CPUFREQ_PATH_PREFIX,
- res_name,
- CPUFREQ_MIN_FREQ_PATH_SUFFIX);
-
- ret = sysfs_read_int(path, &min_freq);
- if (ret < 0)
- return ret;
-
- return min_freq;
-}
-
-static int tw3_dvfs_set_min_freq(char *res_name, int freq)
-{
- char path[PATH_MAX];
- int ret;
-
- if (!res_name)
- return -EINVAL;
-
- snprintf(path, PATH_MAX, "%s%s%s",
- CPUFREQ_PATH_PREFIX,
- res_name,
- CPUFREQ_MIN_FREQ_PATH_SUFFIX);
-
- ret = sysfs_write_int(path, freq);
- if (ret < 0)
- return ret;
-
- return 0;
-}
-
-static int tw3_dvfs_get_max_freq(char *res_name)
-{
- char path[PATH_MAX];
- int max_freq;
- int ret;
-
- if (!res_name)
- return -EINVAL;
-
- snprintf(path, PATH_MAX, "%s%s%s",
- CPUFREQ_PATH_PREFIX,
- res_name,
- CPUFREQ_MAX_FREQ_PATH_SUFFIX);
-
- ret = sysfs_read_int(path, &max_freq);
- if (ret < 0)
- return ret;
-
- return max_freq;
-}
-
-static int tw3_dvfs_set_max_freq(char *res_name, int freq)
-{
- char path[PATH_MAX];
- int ret;
-
- if (!res_name)
- return -EINVAL;
-
- snprintf(path, PATH_MAX, "%s%s%s",
- CPUFREQ_PATH_PREFIX,
- res_name,
- CPUFREQ_MAX_FREQ_PATH_SUFFIX);
-
- ret = sysfs_write_int(path, freq);
- if (ret < 0)
- return ret;
-
- return 0;
-}
-
-static struct pass_resource_dvfs_ops tw3_cpu_dvfs_ops = {
- .get_curr_governor = NULL,
- .set_curr_governor = NULL,
- .get_avail_governor = NULL,
- .get_curr_freq = tw3_dvfs_get_curr_freq,
- .get_min_freq = tw3_dvfs_get_min_freq,
- .set_min_freq = tw3_dvfs_set_min_freq,
- .get_max_freq = tw3_dvfs_get_max_freq,
- .set_max_freq = tw3_dvfs_set_max_freq,
- .get_up_threshold = NULL,
- .set_up_threshold = NULL,
- .get_load_table = NULL,
-};
-
-static int tw3_hotplug_get_online_min_num(char *res_name)
-{
- char path[PATH_MAX];
- int online_min_num;
- int ret;
-
- if (!res_name)
- return -EINVAL;
-
- snprintf(path, PATH_MAX, "%s%s",
- CPUFREQ_PMQOS_PATH_PREFIX,
- CPUFREQ_CPU_ONLINE_MIN_NUM_PATH_SUFFIX);
-
- ret = sysfs_read_int(path, &online_min_num);
- if (ret < 0)
- return ret;
-
- return online_min_num;
-}
-
-static int tw3_hotplug_set_online_min_num(char *res_name, int num)
-{
- char path[PATH_MAX];
- int ret;
-
- if (!res_name)
- return -EINVAL;
-
- /* TODO: Can we turn off CPU0? */
- snprintf(path, PATH_MAX, "%s%s",
- CPUFREQ_PMQOS_PATH_PREFIX,
- CPUFREQ_CPU_ONLINE_MIN_NUM_PATH_SUFFIX);
-
- ret = sysfs_write_int(path, num);
- if (ret < 0)
- return ret;
-
- return 0;
-}
-
-static int tw3_hotplug_get_online_max_num(char *res_name)
-{
- char path[PATH_MAX];
- int online_max_num;
- int ret;
-
- if (!res_name)
- return -EINVAL;
-
- snprintf(path, PATH_MAX, "%s%s",
- CPUFREQ_PMQOS_PATH_PREFIX,
- CPUFREQ_CPU_ONLINE_MAX_NUM_PATH_SUFFIX);
-
- ret = sysfs_read_int(path, &online_max_num);
- if (ret < 0)
- return ret;
-
- return online_max_num;
-}
-
-static int tw3_hotplug_set_online_max_num(char *res_name, int num)
-{
- char path[PATH_MAX];
- int ret;
-
- if (!res_name)
- return -EINVAL;
-
- /* TODO: Can we turn off CPU0? */
- snprintf(path, PATH_MAX, "%s%s",
- CPUFREQ_PMQOS_PATH_PREFIX,
- CPUFREQ_CPU_ONLINE_MAX_NUM_PATH_SUFFIX);
-
- ret = sysfs_write_int(path, num);
- if (ret < 0)
- return ret;
-
- return 0;
-}
-static struct pass_resource_hotplug_ops tw3_cpu_hotplug_ops = {
- .get_online_state = NULL,
- .set_online_state = NULL,
- .get_online_min_num = tw3_hotplug_get_online_min_num,
- .set_online_min_num = tw3_hotplug_set_online_min_num,
- .get_online_max_num = tw3_hotplug_get_online_max_num,
- .set_online_max_num = tw3_hotplug_set_online_max_num,
-};
-
-static int tw3_cpu_get_temp(char *res_thermal_name)
-{
- char path[PATH_MAX + 1];
- char buf[PATH_MAX + 1];
- char *pos;
- int temp = 0;
- int ret;
-
- if (!res_thermal_name)
- return -EINVAL;
-
- snprintf(path, PATH_MAX, "%s%s", TMU_PATH_PREFIX, res_thermal_name);
-
- ret = sysfs_read_str(path, buf, PATH_MAX);
- if (ret < 0)
- return ret;
-
- pos = strstr(buf, "temp:");
- if (!pos || !(pos[5]))
- return -EINVAL;
- pos += 5;
- temp = atoi(pos);
-
- return temp;
-}
-
-static struct pass_resource_tmu_ops tw3_cpu_tmu_ops = {
- .get_temp = tw3_cpu_get_temp,
- .get_policy = NULL,
-};
-
-static int tw3_cpu_open(char *res_name, struct pass_resource_info *info,
- struct pass_resource_common **common)
-{
- struct pass_resource_cpu *cpu_res;
-
- if (!res_name || !info)
- return -EINVAL;
-
- /* TODO: Possibility of a memory leak */
- cpu_res = calloc(1, sizeof(struct pass_resource_cpu));
- if (!cpu_res)
- return -ENOMEM;
-
- cpu_res->common.info = info;
- cpu_res->dvfs = tw3_cpu_dvfs_ops;
- cpu_res->hotplug = tw3_cpu_hotplug_ops;
- cpu_res->tmu = tw3_cpu_tmu_ops;
-
- *common = (struct pass_resource_common *) cpu_res;
-
- return 0;
-}
-
-static int tw3_cpu_close(char *res_name, struct pass_resource_common *common)
-{
- struct pass_resource_cpu *cpu_res;
- int ret = 0;
-
- if (!res_name || !common)
- return -EINVAL;
-
- cpu_res = (struct pass_resource_cpu *) common;
-
- /*
- * tw3 has weird pmqos sysfs node, thus we cannot apply save/restore
- * feature as pass-hal-standard does. Instead of using standard
- * interface, we manually restore the each resource state; pmqos
- * request is unlocked by passing argument '-1' first, and resource
- * state is restored by passing default value.
- */
- ret = cpu_res->hotplug.set_online_max_num(res_name,
- CPUFREQ_PMQOS_REQUEST_UNLOCK);
- if (ret < 0)
- goto exit;
- ret = cpu_res->hotplug.set_online_max_num(res_name,
- CPUFREQ_DEFAULT_ONLINE_MAX_NUM);
- if (ret < 0)
- goto exit;
-
- ret = cpu_res->hotplug.set_online_min_num(res_name,
- CPUFREQ_PMQOS_REQUEST_UNLOCK);
- if (ret < 0)
- goto exit;
- ret = cpu_res->hotplug.set_online_min_num(res_name,
- CPUFREQ_DEFAULT_ONLINE_MIN_NUM);
- if (ret < 0)
- goto exit;
-
- ret = cpu_res->dvfs.set_min_freq(res_name,
- CPUFREQ_PMQOS_REQUEST_UNLOCK);
- if (ret < 0)
- goto exit;
- ret = cpu_res->dvfs.set_min_freq(res_name, CPUFREQ_DEFAULT_MIN_FREQ);
- if (ret < 0)
- goto exit;
-
- ret = cpu_res->dvfs.set_max_freq(res_name,
- CPUFREQ_PMQOS_REQUEST_UNLOCK);
- if (ret < 0)
- goto exit;
- ret = cpu_res->dvfs.set_max_freq(res_name, CPUFREQ_DEFAULT_MAX_FREQ);
- if (ret < 0)
- goto exit;
-
-exit:
- free(common);
-
- return ret;
-}
-
-HAL_MODULE_STRUCTURE = {
- .magic = HAL_INFO_TAG,
- .id = PASS_RESOURCE_CPU_ID,
- .name = PASS_RESOURCE_CPU_NAME,
- .open = tw3_cpu_open,
- .close = tw3_cpu_close,
-};
--- /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 <linux/types.h>
+#include <linux/un.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <unistd.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_PMQOS_PATH_PREFIX "/sys/devices/system/cpu/cpufreq/pmqos"
+#define CPUFREQ_PATH_PREFIX "/sys/devices/system/cpu/"
+#define TMU_PATH_PREFIX "/sys/class/sec/temperature/"
+
+#define CPUFREQ_CPU_ONLINE_MIN_NUM_PATH_SUFFIX "/cpu_online_min"
+#define CPUFREQ_CPU_ONLINE_MAX_NUM_PATH_SUFFIX "/cpu_online_max"
+#define CPUFREQ_MAX_FREQ_PATH_SUFFIX "/cpufreq/scaling_max_freq"
+#define CPUFREQ_MIN_FREQ_PATH_SUFFIX "/cpufreq/scaling_min_freq"
+#define CPUFREQ_CURR_FREQ_PATH_SUFFIX "/cpufreq/cpuinfo_cur_freq"
+
+#define CPUFREQ_DEFAULT_MIN_FREQ 0
+#define CPUFREQ_DEFAULT_MAX_FREQ 1014000
+#define CPUFREQ_DEFAULT_ONLINE_MIN_NUM 0
+#define CPUFREQ_DEFAULT_ONLINE_MAX_NUM 2
+
+#define CPUFREQ_PMQOS_REQUEST_UNLOCK -1
+
+#define FAULT_AROUND_BYTES_PATH "/sys/kernel/debug/fault_around_bytes"
+
+#define SCENARIO_INFO_SOCKET_PATH "/dev/socket/scenario_info"
+
+/*************************************************
+ * HAL backend implementation for CPU H/W Resource
+ */
+static int tw3_dvfs_get_curr_freq(char *res_name)
+{
+ char path[PATH_MAX];
+ int freq, ret;
+
+ if (!res_name)
+ return -EINVAL;
+
+ snprintf(path, PATH_MAX, "%s%s%s",
+ CPUFREQ_PATH_PREFIX,
+ res_name,
+ CPUFREQ_CURR_FREQ_PATH_SUFFIX);
+
+ ret = sysfs_read_int(path, &freq);
+ if (ret < 0)
+ return ret;
+
+ return freq;
+}
+
+static int tw3_dvfs_get_min_freq(char *res_name)
+{
+ char path[PATH_MAX];
+ int min_freq;
+ int ret;
+
+ if (!res_name)
+ return -EINVAL;
+
+ snprintf(path, PATH_MAX, "%s%s%s",
+ CPUFREQ_PATH_PREFIX,
+ res_name,
+ CPUFREQ_MIN_FREQ_PATH_SUFFIX);
+
+ ret = sysfs_read_int(path, &min_freq);
+ if (ret < 0)
+ return ret;
+
+ return min_freq;
+}
+
+static int tw3_dvfs_set_min_freq(char *res_name, int freq)
+{
+ char path[PATH_MAX];
+ int ret;
+
+ if (!res_name)
+ return -EINVAL;
+
+ snprintf(path, PATH_MAX, "%s%s%s",
+ CPUFREQ_PATH_PREFIX,
+ res_name,
+ CPUFREQ_MIN_FREQ_PATH_SUFFIX);
+
+ ret = sysfs_write_int(path, freq);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static int tw3_dvfs_get_max_freq(char *res_name)
+{
+ char path[PATH_MAX];
+ int max_freq;
+ int ret;
+
+ if (!res_name)
+ return -EINVAL;
+
+ snprintf(path, PATH_MAX, "%s%s%s",
+ CPUFREQ_PATH_PREFIX,
+ res_name,
+ CPUFREQ_MAX_FREQ_PATH_SUFFIX);
+
+ ret = sysfs_read_int(path, &max_freq);
+ if (ret < 0)
+ return ret;
+
+ return max_freq;
+}
+
+static int tw3_dvfs_set_max_freq(char *res_name, int freq)
+{
+ char path[PATH_MAX];
+ int ret;
+
+ if (!res_name)
+ return -EINVAL;
+
+ snprintf(path, PATH_MAX, "%s%s%s",
+ CPUFREQ_PATH_PREFIX,
+ res_name,
+ CPUFREQ_MAX_FREQ_PATH_SUFFIX);
+
+ ret = sysfs_write_int(path, freq);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static struct pass_resource_dvfs_ops tw3_cpu_dvfs_ops = {
+ .get_curr_governor = NULL,
+ .set_curr_governor = NULL,
+ .get_avail_governor = NULL,
+ .get_curr_freq = tw3_dvfs_get_curr_freq,
+ .get_min_freq = tw3_dvfs_get_min_freq,
+ .set_min_freq = tw3_dvfs_set_min_freq,
+ .get_max_freq = tw3_dvfs_get_max_freq,
+ .set_max_freq = tw3_dvfs_set_max_freq,
+ .get_up_threshold = NULL,
+ .set_up_threshold = NULL,
+ .get_load_table = NULL,
+};
+
+static int tw3_hotplug_get_online_min_num(char *res_name)
+{
+ char path[PATH_MAX];
+ int online_min_num;
+ int ret;
+
+ if (!res_name)
+ return -EINVAL;
+
+ snprintf(path, PATH_MAX, "%s%s",
+ CPUFREQ_PMQOS_PATH_PREFIX,
+ CPUFREQ_CPU_ONLINE_MIN_NUM_PATH_SUFFIX);
+
+ ret = sysfs_read_int(path, &online_min_num);
+ if (ret < 0)
+ return ret;
+
+ return online_min_num;
+}
+
+static int tw3_hotplug_set_online_min_num(char *res_name, int num)
+{
+ char path[PATH_MAX];
+ int ret;
+
+ if (!res_name)
+ return -EINVAL;
+
+ /* TODO: Can we turn off CPU0? */
+ snprintf(path, PATH_MAX, "%s%s",
+ CPUFREQ_PMQOS_PATH_PREFIX,
+ CPUFREQ_CPU_ONLINE_MIN_NUM_PATH_SUFFIX);
+
+ ret = sysfs_write_int(path, num);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static int tw3_hotplug_get_online_max_num(char *res_name)
+{
+ char path[PATH_MAX];
+ int online_max_num;
+ int ret;
+
+ if (!res_name)
+ return -EINVAL;
+
+ snprintf(path, PATH_MAX, "%s%s",
+ CPUFREQ_PMQOS_PATH_PREFIX,
+ CPUFREQ_CPU_ONLINE_MAX_NUM_PATH_SUFFIX);
+
+ ret = sysfs_read_int(path, &online_max_num);
+ if (ret < 0)
+ return ret;
+
+ return online_max_num;
+}
+
+static int tw3_hotplug_set_online_max_num(char *res_name, int num)
+{
+ char path[PATH_MAX];
+ int ret;
+
+ if (!res_name)
+ return -EINVAL;
+
+ /* TODO: Can we turn off CPU0? */
+ snprintf(path, PATH_MAX, "%s%s",
+ CPUFREQ_PMQOS_PATH_PREFIX,
+ CPUFREQ_CPU_ONLINE_MAX_NUM_PATH_SUFFIX);
+
+ ret = sysfs_write_int(path, num);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+static struct pass_resource_hotplug_ops tw3_cpu_hotplug_ops = {
+ .get_online_state = NULL,
+ .set_online_state = NULL,
+ .get_online_min_num = tw3_hotplug_get_online_min_num,
+ .set_online_min_num = tw3_hotplug_set_online_min_num,
+ .get_online_max_num = tw3_hotplug_get_online_max_num,
+ .set_online_max_num = tw3_hotplug_set_online_max_num,
+};
+
+static int tw3_cpu_get_temp(char *res_thermal_name)
+{
+ char path[PATH_MAX + 1];
+ char buf[PATH_MAX + 1];
+ char *pos;
+ int temp = 0;
+ int ret;
+
+ if (!res_thermal_name)
+ return -EINVAL;
+
+ snprintf(path, PATH_MAX, "%s%s", TMU_PATH_PREFIX, res_thermal_name);
+
+ ret = sysfs_read_str(path, buf, PATH_MAX);
+ if (ret < 0)
+ return ret;
+
+ pos = strstr(buf, "temp:");
+ if (!pos || !(pos[5]))
+ return -EINVAL;
+ pos += 5;
+ temp = atoi(pos);
+
+ return temp;
+}
+
+static struct pass_resource_tmu_ops tw3_cpu_tmu_ops = {
+ .get_temp = tw3_cpu_get_temp,
+ .get_policy = NULL,
+};
+
+/*************************************************
+ * 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 implementation for Non-standard H/W Resource
+ */
+static int tw3_set_pmqos_data(char *res_name, void *data)
+{
+ struct sockaddr_un addr;
+ int socket_fd, ret;
+
+ if (!res_name || !data)
+ return -EINVAL;
+
+ errno = 0;
+ socket_fd = socket(AF_LOCAL, SOCK_STREAM, 0);
+ if (socket_fd == -1)
+ return -errno;
+
+ memset(&addr, 0, sizeof(addr));
+ snprintf(addr.sun_path, UNIX_PATH_MAX, "%s", SCENARIO_INFO_SOCKET_PATH);
+ addr.sun_family = AF_LOCAL;
+
+ errno = 0;
+ ret = connect(socket_fd, (struct sockaddr *) &addr, sizeof(addr));
+ if (ret) {
+ close(socket_fd);
+ return -errno;
+ }
+
+ errno = 0;
+ ret = send(socket_fd, data, strlen(data) + 1, MSG_NOSIGNAL);
+ if (ret)
+ ret = errno;
+
+ close(socket_fd);
+
+ return ret;
+}
+
+static int tw3_set_pmqos_data_nop(char *res_name, void *data)
+{
+ /*
+ * The tw3_set_pmqos_data function is required to send the PMQoS
+ * scenario information to the socket interface of the TRM and it
+ * is optional, which means that this HAL for nonstandard should work
+ * without TRM. For this reason, if there is no unix domain socket file
+ * for the PMQoS scenario, this nop function is assigned to the
+ * set_pmqos_data pointer rather than returning error.
+ */
+ return 0;
+}
+
+
+static int power_tw3_init(void **data)
+{
+ hal_backend_power_funcs *power_funcs = NULL;
+ struct pass_resource_cpu *cpu = NULL;
+ struct pass_resource_memory *memory = NULL;
+ struct pass_resource_nonstandard *nonstandard = 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) {
+ return -ENOMEM;
+ goto err;
+ }
+
+ memory = calloc(1, sizeof(struct pass_resource_memory));
+ if (!memory) {
+ ret = -ENOMEM;
+ goto err;
+ }
+
+ nonstandard = calloc(1, sizeof(struct pass_resource_nonstandard));
+ if (!nonstandard) {
+ ret = -ENOMEM;
+ goto err;
+ }
+
+ /* Initialize each h/w resource */
+ cpu->dvfs = tw3_cpu_dvfs_ops;
+ cpu->hotplug = tw3_cpu_hotplug_ops;
+ cpu->tmu = tw3_cpu_tmu_ops;
+
+ memory->get_fault_around_bytes = memory_get_fault_around_bytes;
+ memory->set_fault_around_bytes = memory_set_fault_around_bytes;
+
+ ret = access(SCENARIO_INFO_SOCKET_PATH, F_OK);
+ if (!ret)
+ nonstandard->set_pmqos_data = tw3_set_pmqos_data;
+ else
+ nonstandard->set_pmqos_data = tw3_set_pmqos_data_nop;
+
+ /* Initialize hal_backend_power_funcs */
+ power_funcs->cpu = cpu;
+ power_funcs->memory = memory;
+ power_funcs->nonstandard = nonstandard;
+
+ *data = (void *)power_funcs;
+
+ return 0;
+err:
+ if (nonstandard)
+ free(nonstandard);
+ if (memory)
+ free(memory);
+ if (cpu)
+ free(cpu);
+
+ free(power_funcs);
+
+ return ret;
+}
+
+static int power_tw3_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->memory)
+ free(funcs->memory);
+ if (funcs->nonstandard)
+ free(funcs->nonstandard);
+
+ free(funcs);
+
+ return 0;
+}
+
+hal_backend hal_backend_power_data = {
+ .name = "power-tw3",
+ .vendor = "Samsung TW3",
+ .abi_version = HAL_ABI_VERSION_TIZEN_6_5,
+ .init = power_tw3_init,
+ .exit = power_tw3_exit,
+};
+++ /dev/null
-CMAKE_MINIMUM_REQUIRED(VERSION 2.6)
-PROJECT(memory C)
-
-INCLUDE(FindPkgConfig)
-pkg_check_modules(pkgs REQUIRED dlog glib-2.0)
-
-#HAL version
-string(REPLACE "." ";" HAL_VERSION_LIST ${HAL_VERSION})
-list(GET HAL_VERSION_LIST 0 HAL_VERSION_MAJOR)
-list(GET HAL_VERSION_LIST 1 HAL_VERSION_MINOR)
-list(GET HAL_VERSION_LIST 2 HAL_VERSION_REVISION)
-list(GET HAL_VERSION_LIST 3 HAL_VERSION_RELEASE)
-add_definitions(-DVER_MAJOR=${HAL_VERSION_MAJOR} -DVER_MINOR=${HAL_VERSION_MINOR})
-add_definitions(-DVER_REVISION=${HAL_VERSION_REVISION} -DVER_RELEASE=${HAL_VERSION_RELEASE})
-
-SET(EXTRA_CFLAGS "${EXTRA_CFLAGS} -fvisibility=hidden")
-SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${EXTRA_CFLAGS}")
-
-SET(SRCS ${PROJECT_NAME}.c
- ../shared/sysfs.c)
-
-ADD_LIBRARY(${PROJECT_NAME} MODULE ${SRCS})
-SET_TARGET_PROPERTIES(${PROJECT_NAME} PROPERTIES PREFIX "")
-INSTALL(TARGETS ${PROJECT_NAME} DESTINATION ${DEST_DIR} COMPONENT RuntimeLibraries)
+++ /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 <limits.h>
-#include <pass/hal.h>
-#include <pass/hal-log.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "../shared/sysfs.h"
-
-#define FAULT_AROUND_BYTES_PATH "/sys/kernel/debug/fault_around_bytes"
-
-static int tw3_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 tw3_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;
-}
-
-static int tw3_memory_open(char *res_name, struct pass_resource_info *info,
- struct pass_resource_common **common)
-{
- struct pass_resource_memory *res;
-
- if (!info)
- return -EINVAL;
-
- res = calloc(1, sizeof(struct pass_resource_memory));
- if (!res)
- return -ENOMEM;
-
- res->common.info = info;
- res->get_fault_around_bytes = tw3_memory_get_fault_around_bytes;
- res->set_fault_around_bytes = tw3_memory_set_fault_around_bytes;
-
- *common = (struct pass_resource_common *)res;
-
- return 0;
-}
-
-static int tw3_memory_close(char *res_name, struct pass_resource_common *common)
-{
- if (!common)
- return -EINVAL;
-
- free(common);
-
- return 0;
-}
-
-HAL_MODULE_STRUCTURE = {
- .magic = HAL_INFO_TAG,
- .id = PASS_RESOURCE_MEMORY_ID,
- .name = PASS_RESOURCE_MEMORY_NAME,
- .open = tw3_memory_open,
- .close = tw3_memory_close,
-};
+++ /dev/null
-CMAKE_MINIMUM_REQUIRED(VERSION 2.6)
-PROJECT(nonstandard C)
-
-INCLUDE(FindPkgConfig)
-pkg_check_modules(pkgs REQUIRED dlog glib-2.0)
-
-#HAL version
-string(REPLACE "." ";" HAL_VERSION_LIST ${HAL_VERSION})
-list(GET HAL_VERSION_LIST 0 HAL_VERSION_MAJOR)
-list(GET HAL_VERSION_LIST 1 HAL_VERSION_MINOR)
-list(GET HAL_VERSION_LIST 2 HAL_VERSION_REVISION)
-list(GET HAL_VERSION_LIST 3 HAL_VERSION_RELEASE)
-add_definitions(-DVER_MAJOR=${HAL_VERSION_MAJOR} -DVER_MINOR=${HAL_VERSION_MINOR})
-add_definitions(-DVER_REVISION=${HAL_VERSION_REVISION} -DVER_RELEASE=${HAL_VERSION_RELEASE})
-
-SET(EXTRA_CFLAGS "${EXTRA_CFLAGS} -fvisibility=hidden")
-SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${EXTRA_CFLAGS}")
-
-SET(SRCS ${PROJECT_NAME}.c
- ../shared/sysfs.c)
-
-ADD_LIBRARY(${PROJECT_NAME} MODULE ${SRCS})
-SET_TARGET_PROPERTIES(${PROJECT_NAME} PROPERTIES PREFIX "")
-INSTALL(TARGETS ${PROJECT_NAME} DESTINATION ${DEST_DIR} COMPONENT RuntimeLibraries)
+++ /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 <limits.h>
-#include <linux/types.h>
-#include <linux/un.h>
-#include <pass/hal.h>
-#include <pass/hal-log.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/socket.h>
-#include <unistd.h>
-
-#include "../shared/sysfs.h"
-
-#define SCENARIO_INFO_SOCKET_PATH "/dev/socket/scenario_info"
-
-static int tw3_set_pmqos_data(char *res_name, void *data)
-{
- struct sockaddr_un addr;
- int socket_fd, ret;
-
- if (!res_name || !data)
- return -EINVAL;
-
- errno = 0;
- socket_fd = socket(AF_LOCAL, SOCK_STREAM, 0);
- if (socket_fd == -1)
- return -errno;
-
- memset(&addr, 0, sizeof(addr));
- snprintf(addr.sun_path, UNIX_PATH_MAX, "%s", SCENARIO_INFO_SOCKET_PATH);
- addr.sun_family = AF_LOCAL;
-
- errno = 0;
- ret = connect(socket_fd, (struct sockaddr *) &addr, sizeof(addr));
- if (ret) {
- close(socket_fd);
- return -errno;
- }
-
- errno = 0;
- ret = send(socket_fd, data, strlen(data) + 1, MSG_NOSIGNAL);
- if (ret)
- ret = errno;
-
- close(socket_fd);
-
- return ret;
-}
-
-static int tw3_set_pmqos_data_nop(char *res_name, void *data)
-{
- /*
- * The tw3_set_pmqos_data function is required to send the PMQoS
- * scenario information to the socket interface of the TRM and it
- * is optional, which means that this HAL for nonstandard should work
- * without TRM. For this reason, if there is no unix domain socket file
- * for the PMQoS scenario, this nop function is assigned to the
- * set_pmqos_data pointer rather than returning error.
- */
- return 0;
-}
-
-static int tw3_nonstandard_open(char *res_name, struct pass_resource_info *info,
- struct pass_resource_common **common)
-{
- struct pass_resource_nonstandard *nonstandard_res;
- int ret;
-
- if (!res_name || !info)
- return -EINVAL;
-
- /* TODO: Possibility of a memory leak */
- nonstandard_res = calloc(1, sizeof(struct pass_resource_nonstandard));
- if (!nonstandard_res)
- return -ENOMEM;
-
- nonstandard_res->common.info = info;
-
- ret = access(SCENARIO_INFO_SOCKET_PATH, F_OK);
- if (!ret)
- nonstandard_res->set_pmqos_data = tw3_set_pmqos_data;
- else
- nonstandard_res->set_pmqos_data = tw3_set_pmqos_data_nop;
-
- *common = (struct pass_resource_common *) nonstandard_res;
-
- return 0;
-}
-
-static int tw3_nonstandard_close(char *res_name, struct pass_resource_common *common)
-{
- if (!res_name || !common)
- return -EINVAL;
-
- free(common);
-
- return 0;
-}
-
-HAL_MODULE_STRUCTURE = {
- .magic = HAL_INFO_TAG,
- .id = PASS_RESOURCE_NONSTANDARD_ID,
- .name = PASS_RESOURCE_NONSTANDARD_NAME,
- .open = tw3_nonstandard_open,
- .close = tw3_nonstandard_close,
-};
+++ /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) || (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 -EIO;
-
- 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
-/*
- * 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.
- */
-
-#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);
--- /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) || (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 -EIO;
+
+ 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
+/*
+ * 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.
+ */
+
+#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 / adaptation / tw3 / pass-hal-tw3.git / commitdiff