From cc490161f6af9e4a6842ee827e4bfc43bc4509d5 Mon Sep 17 00:00:00 2001 From: The Android Open Source Project Date: Tue, 3 Mar 2009 19:32:14 -0800 Subject: auto import from //depot/cupcake/@135843 --- power/Android.mk | 8 ++ power/power.c | 238 +++++++++++++++++++++++++++++++++++++++++++++++++++++ power/power_qemu.c | 51 ++++++++++++ power/power_qemu.h | 27 ++++++ 4 files changed, 324 insertions(+) create mode 100644 power/Android.mk create mode 100644 power/power.c create mode 100644 power/power_qemu.c create mode 100644 power/power_qemu.h (limited to 'power') diff --git a/power/Android.mk b/power/Android.mk new file mode 100644 index 0000000..a524d0e --- /dev/null +++ b/power/Android.mk @@ -0,0 +1,8 @@ +# Copyright 2006 The Android Open Source Project + +LOCAL_SRC_FILES += power/power.c + +ifeq ($(QEMU_HARDWARE),true) + LOCAL_SRC_FILES += power/power_qemu.c + LOCAL_CFLAGS += -DQEMU_POWER=1 +endif diff --git a/power/power.c b/power/power.c new file mode 100644 index 0000000..1130dfa --- /dev/null +++ b/power/power.c @@ -0,0 +1,238 @@ +/* + * Copyright (C) 2008 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. + */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define LOG_TAG "power" +#include + +#include "qemu.h" +#ifdef QEMU_POWER +#include "power_qemu.h" +#endif + +enum { + ACQUIRE_PARTIAL_WAKE_LOCK = 0, + RELEASE_WAKE_LOCK, + REQUEST_STATE, + OUR_FD_COUNT +}; + +const char * const OLD_PATHS[] = { + "/sys/android_power/acquire_partial_wake_lock", + "/sys/android_power/release_wake_lock", + "/sys/android_power/request_state" +}; + +const char * const NEW_PATHS[] = { + "/sys/power/wake_lock", + "/sys/power/wake_unlock", + "/sys/power/state" +}; + +const char * const AUTO_OFF_TIMEOUT_DEV = "/sys/android_power/auto_off_timeout"; + +const char * const LCD_BACKLIGHT = "/sys/class/leds/lcd-backlight/brightness"; +const char * const BUTTON_BACKLIGHT = "/sys/class/leds/button-backlight/brightness"; +const char * const KEYBOARD_BACKLIGHT = "/sys/class/leds/keyboard-backlight/brightness"; + +//XXX static pthread_once_t g_initialized = THREAD_ONCE_INIT; +static int g_initialized = 0; +static int g_fds[OUR_FD_COUNT]; +static int g_error = 1; + +static const char *off_state = "mem"; +static const char *on_state = "on"; + +static int64_t systemTime() +{ + struct timespec t; + t.tv_sec = t.tv_nsec = 0; + clock_gettime(CLOCK_MONOTONIC, &t); + return t.tv_sec*1000000000LL + t.tv_nsec; +} + +static int +open_file_descriptors(const char * const paths[]) +{ + int i; + for (i=0; i= 0; +} + +int +set_last_user_activity_timeout(int64_t delay) +{ +// LOGI("set_last_user_activity_timeout delay=%d\n", ((int)(delay))); + + int fd = open(AUTO_OFF_TIMEOUT_DEV, O_RDWR); + if (fd >= 0) { + char buf[32]; + ssize_t len; + len = sprintf(buf, "%d", ((int)(delay))); + len = write(fd, buf, len); + close(fd); + return 0; + } else { + return errno; + } +} + +static void +set_a_light(const char* path, int value) +{ + int fd; + static int already_warned = 0; + + // LOGI("set_a_light(%s, %d)\n", path, value); + + fd = open(path, O_RDWR); + if (fd >= 0) { + char buffer[20]; + int bytes = sprintf(buffer, "%d\n", value); + write(fd, buffer, bytes); + close(fd); + } else { + if (already_warned == 0) { + LOGE("set_a_light failed to open %s\n", path); + already_warned = 1; + } + } +} + +int +set_light_brightness(unsigned int mask, unsigned int brightness) +{ + QEMU_FALLBACK(set_light_brightness(mask,brightness)); + + initialize_fds(); + +// LOGI("set_light_brightness mask=0x%08x brightness=%d now=%lld g_error=%s\n", +// mask, brightness, systemTime(), strerror(g_error)); + + if (mask & KEYBOARD_LIGHT) { + set_a_light(KEYBOARD_BACKLIGHT, brightness); + } + + if (mask & SCREEN_LIGHT) { + set_a_light(LCD_BACKLIGHT, brightness); + } + + if (mask & BUTTON_LIGHT) { + set_a_light(BUTTON_BACKLIGHT, brightness); + } + + return 0; +} + + +int +set_screen_state(int on) +{ + QEMU_FALLBACK(set_screen_state(on)); + + //LOGI("*** set_screen_state %d", on); + + initialize_fds(); + + //LOGI("go_to_sleep eventTime=%lld now=%lld g_error=%s\n", eventTime, + // systemTime(), strerror(g_error)); + + if (g_error) return g_error; + + char buf[32]; + int len; + if(on) + len = sprintf(buf, on_state); + else + len = sprintf(buf, off_state); + len = write(g_fds[REQUEST_STATE], buf, len); + if(len < 0) { + LOGE("Failed setting last user activity: g_error=%d\n", g_error); + } + return 0; +} diff --git a/power/power_qemu.c b/power/power_qemu.c new file mode 100644 index 0000000..d400082 --- /dev/null +++ b/power/power_qemu.c @@ -0,0 +1,51 @@ +/* + * Copyright (C) 2008 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. + */ +#include "qemu.h" +#include "power_qemu.h" +#include +#include +#include + +static void +set_a_light(const char* name, unsigned brightness) +{ + qemu_control_command( "power:light:brightness:%s:%d", + name, brightness ); +} + +int +qemu_set_light_brightness(unsigned int mask, unsigned int brightness) +{ + if (mask & KEYBOARD_LIGHT) { + set_a_light("keyboard_backlight", brightness); + } + if (mask & SCREEN_LIGHT) { + set_a_light("lcd_backlight", brightness); + } + if (mask & BUTTON_LIGHT) { + set_a_light("button_backlight", brightness); + } + return 0; +} + + +int +qemu_set_screen_state(int on) +{ + qemu_control_command( "power:screen_state:%s", on ? "wake" : "standby" ); + return 0; +} + diff --git a/power/power_qemu.h b/power/power_qemu.h new file mode 100644 index 0000000..3004950 --- /dev/null +++ b/power/power_qemu.h @@ -0,0 +1,27 @@ +/* + * Copyright (C) 2008 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. + */ +#ifndef _power_qemu_h +#define _power_qemu_h + +#include + +extern int +qemu_set_light_brightness(unsigned int mask, unsigned int brightness); + +extern int +qemu_set_screen_state(int on); + +#endif /* _power_qemu_h */ -- cgit v1.1