diff options
Diffstat (limited to 'power')
| -rw-r--r-- | power/Android.mk | 29 | ||||
| -rw-r--r-- | power/power.c | 125 |
2 files changed, 154 insertions, 0 deletions
diff --git a/power/Android.mk b/power/Android.mk new file mode 100644 index 0000000..06e4852 --- /dev/null +++ b/power/Android.mk @@ -0,0 +1,29 @@ +# Copyright (C) 2011 The Android Open Source 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. + +LOCAL_PATH := $(call my-dir) + +include $(CLEAR_VARS) + +LOCAL_MODULE := power.$(TARGET_BOARD_PLATFORM) +LOCAL_MODULE_RELATIVE_PATH := hw +LOCAL_SRC_FILES := power.c +LOCAL_SHARED_LIBRARIES := liblog +LOCAL_MODULE_TAGS := optional + +ifneq ($(TARGET_TAP_TO_WAKE_NODE),) + LOCAL_CFLAGS += -DTAP_TO_WAKE_NODE=\"$(TARGET_TAP_TO_WAKE_NODE)\" +endif + +include $(BUILD_SHARED_LIBRARY) diff --git a/power/power.c b/power/power.c new file mode 100644 index 0000000..29653ca --- /dev/null +++ b/power/power.c @@ -0,0 +1,125 @@ +/* + * Copyright (C) 2016 CyanogenMod + * + * 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 <string.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <fcntl.h> + +#define LOG_TAG "MTK PowerHAL" +#include <utils/Log.h> + +#include <hardware/hardware.h> +#include <hardware/power.h> + +#define MT_RUSH_BOOST_PATH "/proc/hps/rush_boost_enabled" +#define MT_FPS_UPPER_BOUND_PATH "/d/ged/hal/fps_upper_bound" + + +#define POWER_HINT_POWER_SAVING 0x00000101 +#define POWER_HINT_PERFORMANCE_BOOST 0x00000102 +#define POWER_HINT_BALANCE 0x00000103 + +static void power_init(struct power_module *module) +{ +} + +static void power_set_interactive(struct power_module *module, int on) +{ +} + +static void power_fwrite(const char *path, char *s) +{ + char buf[64]; + int len; + int fd = open(path, O_WRONLY); + + if (fd < 0) { + strerror_r(errno, buf, sizeof(buf)); + ALOGE("Error opening %s: %s\n", path, buf); + return; + } + + len = write(fd, s, strlen(s)); + if (len < 0) { + strerror_r(errno, buf, sizeof(buf)); + ALOGE("Error writing to %s: %s\n", path, buf); + } + + close(fd); +} + +static void power_hint(struct power_module *module, power_hint_t hint, + void *data) { + int32_t dataint = -1; + switch (hint) { + case POWER_HINT_LOW_POWER: + dataint = *(int32_t *)data; + if (dataint) { + power_fwrite(MT_FPS_UPPER_BOUND_PATH, "30"); + power_fwrite(MT_RUSH_BOOST_PATH, "0"); + } else { + power_fwrite(MT_FPS_UPPER_BOUND_PATH, "60"); + power_fwrite(MT_RUSH_BOOST_PATH, "1"); + } + ALOGI("POWER_HINT_LOW_POWER"); + break; + case POWER_HINT_VSYNC: + case POWER_HINT_INTERACTION: + case POWER_HINT_CPU_BOOST: + case POWER_HINT_LAUNCH_BOOST: + case POWER_HINT_AUDIO: + case POWER_HINT_SET_PROFILE: + case POWER_HINT_VIDEO_ENCODE: + case POWER_HINT_VIDEO_DECODE: + break; + default: + break; + } +} + +void set_feature(struct power_module *module, feature_t feature, int state) +{ +#ifdef TAP_TO_WAKE_NODE + char tmp_str[64]; + if (feature == POWER_FEATURE_DOUBLE_TAP_TO_WAKE) { + snprintf(tmp_str, 64, "%d", state); + power_fwrite(TAP_TO_WAKE_NODE, tmp_str); + return; + } +#endif +} + +static struct hw_module_methods_t power_module_methods = { + .open = NULL, +}; + +struct power_module HAL_MODULE_INFO_SYM = { + .common = { + .tag = HARDWARE_MODULE_TAG, + .module_api_version = POWER_MODULE_API_VERSION_0_2, + .hal_api_version = HARDWARE_HAL_API_VERSION, + .id = POWER_HARDWARE_MODULE_ID, + .name = "MTK Power HAL", + .author = "Cyanogen", + .methods = &power_module_methods, + }, + + .init = power_init, + .setInteractive = power_set_interactive, + .powerHint = power_hint, + .setFeature = set_feature, +}; |