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samsung: remove old fingerprint and lights hal

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* there are hidl replacements available, use them

Change-Id: I36243259627aeb76c2dfbfc2b6b4e219c509cfb5
tirimbino
Jan Altensen 5 years ago
parent d8ce1b803a
commit e6caf96ddb
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GPG Key ID: 3E45BB95F7AD33DA
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  1. 2
      Android.mk
  2. 5
      fingerprint/Android.mk
  3. 15
      fingerprint/bauth/Android.mk
  4. 231
      fingerprint/bauth/fingerprint.c
  5. 47
      liblights/Android.mk
  6. 190
      liblights/NOTICE
  7. 32
      liblights/include/liblights/samsung_lights_helper.h
  8. 58
      liblights/include/samsung_lights.h
  9. 431
      liblights/lights.c
  10. 160
      liblights/lights_helper.c

2
Android.mk
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@ -45,9 +45,7 @@ include $(SAM_ROOT)/AdvancedDisplay/Android.mk
include $(SAM_ROOT)/audio/Android.mk
include $(SAM_ROOT)/consumerir/Android.mk
include $(SAM_ROOT)/dtbhtool/Android.mk
include $(SAM_ROOT)/fingerprint/Android.mk
include $(SAM_ROOT)/hidl/Android.mk
include $(SAM_ROOT)/liblights/Android.mk
include $(SAM_ROOT)/modemloader/Android.mk
include $(SAM_ROOT)/power/Android.mk
include $(SAM_ROOT)/ril/Android.mk

5
fingerprint/Android.mk
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@ -1,5 +0,0 @@
FP_ROOT := $(call my-dir)
ifneq ($(TARGET_SEC_FP_HAL_VARIANT),)
include $(FP_ROOT)/$(TARGET_SEC_FP_HAL_VARIANT)/Android.mk
endif

15
fingerprint/bauth/Android.mk
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@ -1,15 +0,0 @@
LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_SRC_FILES := \
fingerprint.c
LOCAL_SHARED_LIBRARIES := \
libhardware liblog
LOCAL_MODULE_RELATIVE_PATH := hw
LOCAL_MODULE := fingerprint.$(TARGET_BOARD_PLATFORM)
LOCAL_MODULE_TAGS := optional
include $(BUILD_SHARED_LIBRARY)

231
fingerprint/bauth/fingerprint.c
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@ -1,231 +0,0 @@
/*
* Copyright (C) 2017 Jesse Chan, The LineageOS 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.
*/
#define LOG_TAG "SS Fingerprint HAL"
#include <dlfcn.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <cutils/log.h>
#include <hardware/hardware.h>
#include <hardware/fingerprint.h>
#include <utils/threads.h>
typedef struct {
void *libhandle;
int (*ss_fingerprint_close)(void);
uint64_t (*ss_fingerprint_pre_enroll)(void);
int (*ss_fingerprint_enroll)(const hw_auth_token_t *hat, uint32_t gid, uint32_t timeout_sec);
int (*ss_fingerprint_post_enroll)(void);
uint64_t (*ss_fingerprint_get_auth_id)(void);
int (*ss_fingerprint_remove)(uint32_t gid, uint32_t fid);
int (*ss_fingerprint_set_active_group)(uint32_t gid, const char *store_path);
int (*ss_fingerprint_authenticate)(uint64_t operation_id, uint32_t gid);
int (*ss_set_notify_callback)(fingerprint_notify_t notify);
int (*ss_fingerprint_cancel)(void);
int (*ss_fingerprint_open)(const char *id);
} bauth_server_handle_t;
bauth_server_handle_t* bauth_handle;
static fingerprint_notify_t original_notify;
static int load_bauth_server(void)
{
bauth_handle = (bauth_server_handle_t *)malloc(sizeof(bauth_server_handle_t));
if (bauth_handle == NULL)
goto no_memory;
void *libhandle = bauth_handle->libhandle;
libhandle = dlopen("libbauthserver.so", RTLD_NOW);
bauth_handle->ss_fingerprint_close = dlsym(libhandle, "ss_fingerprint_close");
bauth_handle->ss_fingerprint_pre_enroll = dlsym(libhandle, "ss_fingerprint_pre_enroll");
bauth_handle->ss_fingerprint_enroll = dlsym(libhandle, "ss_fingerprint_enroll");
bauth_handle->ss_fingerprint_post_enroll = dlsym(libhandle, "ss_fingerprint_post_enroll");
bauth_handle->ss_fingerprint_get_auth_id = dlsym(libhandle, "ss_fingerprint_get_auth_id");
bauth_handle->ss_fingerprint_remove = dlsym(libhandle, "ss_fingerprint_remove");
bauth_handle->ss_fingerprint_set_active_group = dlsym(libhandle, "ss_fingerprint_set_active_group");
bauth_handle->ss_fingerprint_authenticate = dlsym(libhandle, "ss_fingerprint_authenticate");
bauth_handle->ss_set_notify_callback = dlsym(libhandle, "ss_set_notify_callback");
bauth_handle->ss_fingerprint_cancel = dlsym(libhandle, "ss_fingerprint_cancel");
bauth_handle->ss_fingerprint_open = dlsym(libhandle, "ss_fingerprint_open");
return 0;
no_memory:
ALOGE("%s: not enough memory to load the libhandle", __func__);
return -ENOMEM;
}
static void hal_notify_convert(const fingerprint_msg_t *msg)
{
fingerprint_msg_t *new_msg = (fingerprint_msg_t *)msg;
switch (msg->type) {
case FINGERPRINT_TEMPLATE_ENROLLING:
new_msg->data.enroll.samples_remaining = 100 - msg->data.enroll.samples_remaining;
break;
default:
break;
}
return original_notify(new_msg);
}
static int fingerprint_close(hw_device_t *dev)
{
bauth_handle->ss_fingerprint_close();
if (dev)
free(dev);
return 0;
}
static uint64_t fingerprint_pre_enroll(struct fingerprint_device __unused *dev)
{
return bauth_handle->ss_fingerprint_pre_enroll();
}
static int fingerprint_enroll(struct fingerprint_device __unused *dev, const hw_auth_token_t *hat,
uint32_t gid, uint32_t timeout_sec)
{
return bauth_handle->ss_fingerprint_enroll(hat, gid, timeout_sec);
}
static int fingerprint_post_enroll(struct fingerprint_device __unused *dev)
{
return bauth_handle->ss_fingerprint_post_enroll();
}
static uint64_t fingerprint_get_auth_id(struct fingerprint_device __unused *dev)
{
return bauth_handle->ss_fingerprint_get_auth_id();
}
static int fingerprint_cancel(struct fingerprint_device __unused *dev)
{
fingerprint_msg_t *cancel_msg;
int ret = 0;
ret = bauth_handle->ss_fingerprint_cancel();
cancel_msg = (fingerprint_msg_t *)malloc(sizeof(fingerprint_msg_t));
memset(cancel_msg, 0, sizeof(fingerprint_msg_t));
cancel_msg->type = FINGERPRINT_ERROR;
cancel_msg->data.error = FINGERPRINT_ERROR_CANCELED;
original_notify(cancel_msg);
return ret;
}
static int fingerprint_remove(struct fingerprint_device __unused *dev, uint32_t gid, uint32_t fid)
{
return bauth_handle->ss_fingerprint_remove(gid, fid);
}
static int fingerprint_set_active_group(struct fingerprint_device __unused *dev, uint32_t gid,
const char *store_path)
{
return bauth_handle->ss_fingerprint_set_active_group(gid, store_path);
}
static int fingerprint_authenticate(struct fingerprint_device __unused *dev, uint64_t operation_id,
uint32_t gid)
{
return bauth_handle->ss_fingerprint_authenticate(operation_id, gid);
}
static int set_notify_callback(struct fingerprint_device *dev, fingerprint_notify_t notify)
{
/* Decorate with locks */
dev->notify = notify;
original_notify = notify;
return bauth_handle->ss_set_notify_callback(hal_notify_convert);
}
static int enumerate(struct fingerprint_device *dev __unused)
{
return -1;
}
static int fingerprint_open(const hw_module_t* module, const char *id, hw_device_t** device)
{
int ret;
fingerprint_device_t *dev = NULL;
if (device == NULL) {
ALOGE("NULL device on open");
ret = -ENODEV;
goto fail;
}
ret = load_bauth_server();
if (ret < 0)
goto fail;
dev = (fingerprint_device_t*)calloc(1, sizeof(fingerprint_device_t));
if (dev == NULL) {
ret = -ENOMEM;
goto fail;
}
dev->common.tag = HARDWARE_DEVICE_TAG;
dev->common.version = FINGERPRINT_MODULE_API_VERSION_2_1;
dev->common.module = (struct hw_module_t*) module;
dev->common.close = fingerprint_close;
dev->pre_enroll = fingerprint_pre_enroll;
dev->enroll = fingerprint_enroll;
dev->post_enroll = fingerprint_post_enroll;
dev->get_authenticator_id = fingerprint_get_auth_id;
dev->cancel = fingerprint_cancel;
dev->remove = fingerprint_remove;
dev->set_active_group = fingerprint_set_active_group;
dev->authenticate = fingerprint_authenticate;
dev->set_notify = set_notify_callback;
dev->enumerate = enumerate;
dev->notify = NULL;
*device = (hw_device_t*) dev;
return (*bauth_handle->ss_fingerprint_open)(id);
fail:
ALOGE("%s: failed to open FP device (ret=%d)", __func__, ret);
return ret;
}
static struct hw_module_methods_t fingerprint_module_methods = {
.open = fingerprint_open,
};
fingerprint_module_t HAL_MODULE_INFO_SYM = {
.common = {
.tag = HARDWARE_MODULE_TAG,
.module_api_version = FINGERPRINT_MODULE_API_VERSION_2_1,
.hal_api_version = HARDWARE_HAL_API_VERSION,
.id = FINGERPRINT_HARDWARE_MODULE_ID,
.name = "Samsung TZ Fingerprint HAL",
.author = "The LineageOS Project",
.methods = &fingerprint_module_methods,
},
};

47
liblights/Android.mk
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@ -1,47 +0,0 @@
# Copyright (C) 2015-2016 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.
LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_SRC_FILES := lights_helper.c
LOCAL_C_INCLUDES := $(LOCAL_PATH)/include
LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)/include
LOCAL_SHARED_LIBRARIES := liblog
LOCAL_MODULE := liblights_helper
LOCAL_MODULE_TAGS := optional
include $(BUILD_STATIC_LIBRARY)
ifneq ($(TARGET_PROVIDES_LIBLIGHT),true)
include $(CLEAR_VARS)
LOCAL_SRC_FILES := lights.c
LOCAL_SHARED_LIBRARIES := liblog
LOCAL_STATIC_LIBRARIES := liblights_helper
LOCAL_MODULE := lights.$(TARGET_BOOTLOADER_BOARD_NAME)
LOCAL_MODULE_RELATIVE_PATH := hw
LOCAL_MODULE_TAGS := optional
LOCAL_PROPRIETARY_MODULE := true
include $(BUILD_SHARED_LIBRARY)
endif

190
liblights/NOTICE
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@ -1,190 +0,0 @@
Copyright (C) 2012 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.
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.
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32
liblights/include/liblights/samsung_lights_helper.h
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@ -1,32 +0,0 @@
/*
* Copyright (C) 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.
*/
#ifndef SAMSUNG_LIGHTS_HELPER_H
#define SAMSUNG_LIGHTS_HELPER_H
#include <samsung_lights.h>
/*
* Interfaces for other modules accessing lights HAL data.
* For documentation, see lights_helper.c
*/
extern int set_cur_button_brightness(const int brightness);
extern int get_cur_panel_brightness();
extern int get_max_panel_brightness();
extern int set_cur_panel_brightness(const int brightness);
extern int set_max_panel_brightness(const int brightness);
#endif // SAMSUNG_LIGHTS_HELPER_H

58
liblights/include/samsung_lights.h
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@ -1,58 +0,0 @@
/*
* Copyright (C) 2016 The CyanogenMod Project
* Copyright (C) 2017 The LineageOS 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 SAMSUNG_LIGHTS_H
#define SAMSUNG_LIGHTS_H
/*
* Board specific nodes
*
* If your kernel exposes these controls in another place, you can either
* symlink to the locations given here, or override this header in your
* device tree.
*/
#define PANEL_BRIGHTNESS_NODE "/sys/class/backlight/panel/brightness"
#define PANEL_MAX_BRIGHTNESS_NODE "/sys/class/backlight/panel/max_brightness"
#define BUTTON_BRIGHTNESS_NODE "/sys/class/sec/sec_touchkey/brightness"
#define LED_BLINK_NODE "/sys/class/sec/led/led_blink"
#define LED_BLN_NODE "/sys/class/misc/backlightnotification/notification_led"
// Uncomment to enable variable button brightness
//#define VAR_BUTTON_BRIGHTNESS 1
/*
* Brightness adjustment factors
*
* If one of your device's LEDs is more powerful than the others, use these
* values to equalise them. This value is in the range 0.0-1.0.
*/
#define LED_ADJUSTMENT_R 1.0
#define LED_ADJUSTMENT_G 1.0
#define LED_ADJUSTMENT_B 1.0
/*
* Light brightness factors
*
* It might make sense for all colours to be scaled down (for example, if your
* LED is too bright). Use these values to adjust the brightness of each
* light. This value is within the range 0-255.
*/
#define LED_BRIGHTNESS_BATTERY 255
#define LED_BRIGHTNESS_NOTIFICATION 255
#define LED_BRIGHTNESS_ATTENTION 255
#endif // SAMSUNG_LIGHTS_H

431
liblights/lights.c
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@ -1,431 +0,0 @@
/*
* Copyright (C) 2013 The Android Open Source Project
* Copyright (C) 2015-2016 The CyanogenMod Project
* Copyright (C) 2017 The LineageOS 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.
*/
#define LOG_TAG "SamsungLightsHAL"
/* #define LOG_NDEBUG 0 */
#include <cutils/log.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <fcntl.h>
#include <pthread.h>
#include <sys/ioctl.h>
#include <sys/types.h>
#include <hardware/lights.h>
#include <liblights/samsung_lights_helper.h>
#include "samsung_lights.h"
#define COLOR_MASK 0x00ffffff
#define MAX_INPUT_BRIGHTNESS 255
enum component_mask_t {
COMPONENT_BACKLIGHT = 0x1,
COMPONENT_BUTTON_LIGHT = 0x2,
COMPONENT_LED = 0x4,
COMPONENT_BLN = 0x8,
};
enum light_t {
TYPE_BATTERY = 0,
TYPE_NOTIFICATION = 1,
TYPE_ATTENTION = 2,
};
// Assume backlight is always supported
static int hw_components = COMPONENT_BACKLIGHT;
static pthread_once_t g_init = PTHREAD_ONCE_INIT;
static pthread_mutex_t g_lock = PTHREAD_MUTEX_INITIALIZER;
struct backlight_config {
int cur_brightness, max_brightness;
};
struct led_config {
unsigned int color;
int delay_on, delay_off;
};
static struct backlight_config g_backlight; // For panel backlight
static struct led_config g_leds[3]; // For battery, notifications, and attention.
static int g_cur_led = -1; // Presently showing LED of the above.
void check_component_support()
{
if (access(BUTTON_BRIGHTNESS_NODE, W_OK) == 0)
hw_components |= COMPONENT_BUTTON_LIGHT;
if (access(LED_BLINK_NODE, W_OK) == 0)
hw_components |= COMPONENT_LED;
#ifdef LED_BLN_NODE
if (access(LED_BLN_NODE, W_OK) == 0)
hw_components |= COMPONENT_BLN;
#endif
}
void init_g_lock(void)
{
pthread_mutex_init(&g_lock, NULL);
}
static int write_str(char const *path, const char* value)
{
int fd;
static int already_warned;
already_warned = 0;
ALOGV("write_str: path %s, value %s", path, value);
fd = open(path, O_RDWR);
if (fd >= 0) {
int amt = write(fd, value, strlen(value));
close(fd);
return amt == -1 ? -errno : 0;
} else {
if (already_warned == 0) {
ALOGE("write_str failed to open %s", path);
already_warned = 1;
}
return -errno;
}
}
static int rgb_to_brightness(struct light_state_t const *state)
{
int color = state->color & COLOR_MASK;
return ((77*((color>>16) & 0x00ff))
+ (150*((color>>8) & 0x00ff)) + (29*(color & 0x00ff))) >> 8;
}
static int set_light_backlight(struct light_device_t *dev __unused,
struct light_state_t const *state)
{
int err = 0;
int brightness = rgb_to_brightness(state);
int max_brightness = g_backlight.max_brightness;
/*
* If max panel brightness is not the default (255),
* apply linear scaling across the accepted range.
*/
if (max_brightness != MAX_INPUT_BRIGHTNESS) {
int old_brightness = brightness;
brightness = brightness * max_brightness / MAX_INPUT_BRIGHTNESS;
ALOGV("%s: scaling brightness %d => %d", __func__,
old_brightness, brightness);
}
pthread_mutex_lock(&g_lock);
err = set_cur_panel_brightness(brightness);
if (err == 0)
g_backlight.cur_brightness = brightness;
pthread_mutex_unlock(&g_lock);
return err;
}
static int set_light_buttons(struct light_device_t* dev __unused,
struct light_state_t const* state)
{
int err = 0;
pthread_mutex_lock(&g_lock);
int brightness = (state->color & COLOR_MASK) ? 1 : 0;
#ifdef VAR_BUTTON_BRIGHTNESS
brightness = rgb_to_brightness(state);
#endif
err = set_cur_button_brightness(brightness);
pthread_mutex_unlock(&g_lock);
return err;
}
static int close_lights(struct light_device_t *dev)
{
ALOGV("close_light is called");
if (dev)
free(dev);
return 0;
}
/* LEDs */
static int write_leds(const struct led_config *led)
{
static const struct led_config led_off = {0, 0, 0};
char blink[32];
int count, err;
if (led == NULL)
led = &led_off;
count = snprintf(blink,
sizeof(blink) - 1,
"0x%08x %d %d",
led->color,
led->delay_on,
led->delay_off);
if (count < 0) {
return -errno;
} else if ((unsigned int)count >= sizeof(blink)-1) {
ALOGE("%s: Truncated string: blink=\"%s\".", __func__, blink);
return -EINVAL;
}
ALOGV("%s: color=0x%08x, delay_on=%d, delay_off=%d, blink=%s",
__func__, led->color, led->delay_on, led->delay_off, blink);
/* Add '\n' here to make the above log message clean. */
blink[count] = '\n';
blink[count+1] = '\0';
pthread_mutex_lock(&g_lock);
err = write_str(LED_BLINK_NODE, blink);
pthread_mutex_unlock(&g_lock);
return err;
}
static int calibrate_color(int color, int brightness)
{
int red = ((color >> 16) & 0xFF) * LED_ADJUSTMENT_R;
int green = ((color >> 8) & 0xFF) * LED_ADJUSTMENT_G;
int blue = (color & 0xFF) * LED_ADJUSTMENT_B;
return (((red * brightness) / 255) << 16) + (((green * brightness) / 255) << 8) + ((blue * brightness) / 255);
}
static int set_light_leds(struct light_state_t const *state, int type)
{
struct led_config *led;
int err = 0;
int adjusted_brightness;
ALOGV("%s: type=%d, color=0x%010x, fM=%d, fOnMS=%d, fOffMs=%d.", __func__,
type, state->color,state->flashMode, state->flashOnMS, state->flashOffMS);
if (type < 0 || (size_t)type >= sizeof(g_leds)/sizeof(g_leds[0])) {
return -EINVAL;
}
/* type is one of:
* 0. battery
* 1. notifications
* 2. attention
* which are multiplexed onto the same physical LED in the above order. */
led = &g_leds[type];
switch (state->flashMode) {
case LIGHT_FLASH_NONE:
/* Set LED to a solid color, spec is unclear on the exact behavior here. */
led->delay_on = led->delay_off = 0;
break;
case LIGHT_FLASH_TIMED:
case LIGHT_FLASH_HARDWARE:
led->delay_on = state->flashOnMS;
led->delay_off = state->flashOffMS;
break;
default:
return -EINVAL;
}
switch (type) {
case TYPE_BATTERY:
adjusted_brightness = LED_BRIGHTNESS_BATTERY;
break;
case TYPE_NOTIFICATION:
adjusted_brightness = LED_BRIGHTNESS_NOTIFICATION;
break;
case TYPE_ATTENTION:
adjusted_brightness = LED_BRIGHTNESS_ATTENTION;
break;
default:
adjusted_brightness = 255;
}
led->color = calibrate_color(state->color & COLOR_MASK, adjusted_brightness);
if (led->color > 0) {
/* This LED is lit. */
if (type >= g_cur_led) {
/* And it has the highest priority, so show it. */
err = write_leds(led);
g_cur_led = type;
}
} else {
/* This LED is not (any longer) lit. */
if (type == g_cur_led) {
/* But it is currently showing, switch to a lower-priority LED. */
int i;
for (i = type-1; i >= 0; i--) {
if (g_leds[i].color > 0) {
/* Found a lower-priority LED to switch to. */
err = write_leds(&g_leds[i]);
goto switched;
}
}
/* No LEDs are lit, turn off. */
err = write_leds(NULL);
switched:
g_cur_led = i;
}
}
return err;
}
#ifdef LED_BLN_NODE
static int set_light_bln_notifications(struct light_device_t *dev __unused,
struct light_state_t const *state)
{
int err = 0;
pthread_mutex_lock(&g_lock);
err = write_str(LED_BLN_NODE, state->color & COLOR_MASK ? "1" : "0");
pthread_mutex_unlock(&g_lock);
return err;
}
#endif
static int set_light_leds_battery(struct light_device_t *dev __unused,
struct light_state_t const *state)
{
return set_light_leds(state, TYPE_BATTERY);
}
static int set_light_leds_notifications(struct light_device_t *dev __unused,
struct light_state_t const *state)
{
return set_light_leds(state, TYPE_NOTIFICATION);
}
static int set_light_leds_attention(struct light_device_t *dev __unused,
struct light_state_t const *state)
{
struct light_state_t fixed;
memcpy(&fixed, state, sizeof(fixed));
/* The framework does odd things with the attention lights, fix them up to
* do something sensible here. */
switch (fixed.flashMode) {
case LIGHT_FLASH_NONE:
/* LightsService.Light::stopFlashing calls with non-zero color. */
fixed.color = 0;
break;
case LIGHT_FLASH_HARDWARE:
/* PowerManagerService::setAttentionLight calls with onMS=3, offMS=0, which
* just makes for a slightly-dimmer LED. */
if (fixed.flashOnMS > 0 && fixed.flashOffMS == 0)
fixed.flashMode = LIGHT_FLASH_NONE;
fixed.color = 0x000000ff;
break;
}
return set_light_leds(&fixed, TYPE_ATTENTION);
}
static int open_lights(const struct hw_module_t *module, char const *name,
struct hw_device_t **device)
{
int requested_component;
int (*set_light)(struct light_device_t *dev,
struct light_state_t const *state);
check_component_support();
if (0 == strcmp(LIGHT_ID_BACKLIGHT, name)) {
requested_component = COMPONENT_BACKLIGHT;
set_light = set_light_backlight;
} else if (0 == strcmp(LIGHT_ID_BUTTONS, name)) {
requested_component = COMPONENT_BUTTON_LIGHT;
set_light = set_light_buttons;
} else if (0 == strcmp(LIGHT_ID_BATTERY, name)) {
requested_component = COMPONENT_LED;
set_light = set_light_leds_battery;
} else if (0 == strcmp(LIGHT_ID_NOTIFICATIONS, name)) {
requested_component = COMPONENT_LED;
set_light = set_light_leds_notifications;
#ifdef LED_BLN_NODE
if (hw_components & COMPONENT_BLN) {
requested_component = COMPONENT_BLN;
set_light = set_light_bln_notifications;
}
#endif
} else if (0 == strcmp(LIGHT_ID_ATTENTION, name)) {
requested_component = COMPONENT_LED;
set_light = set_light_leds_attention;
} else {
return -EINVAL;
}
if ((hw_components & requested_component) == 0) {
ALOGV("%s: component 0x%x not supported by device", __func__,
requested_component);
return -EINVAL;
}
int max_brightness = get_max_panel_brightness();
if (max_brightness < 0) {
ALOGE("%s: failed to read max panel brightness, fallback to 255!",
__func__);
max_brightness = 255;
}
g_backlight.max_brightness = max_brightness;
pthread_once(&g_init, init_g_lock);
struct light_device_t *dev = malloc(sizeof(struct light_device_t));
memset(dev, 0, sizeof(*dev));
dev->common.tag = HARDWARE_DEVICE_TAG;
dev->common.version = 0;
dev->common.module = (struct hw_module_t *)module;
dev->common.close = (int (*)(struct hw_device_t *))close_lights;
dev->set_light = set_light;
*device = (struct hw_device_t *)dev;
return 0;
}
static struct hw_module_methods_t lights_module_methods = {
.open = open_lights,
};
struct hw_module_t HAL_MODULE_INFO_SYM = {
.tag = HARDWARE_MODULE_TAG,
.version_major = 1,
.version_minor = 0,
.id = LIGHTS_HARDWARE_MODULE_ID,
.name = "Samsung Lights Module",
.author = "The CyanogenMod Project",
.methods = &lights_module_methods,
};

160
liblights/lights_helper.c
Unescape View File

@ -1,160 +0,0 @@
/*
* Copyright (C) 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.
*/
#define LOG_TAG "SamsungLightsHelper"
/* #define LOG_NDEBUG 0 */
#include <errno.h>
#include <fcntl.h>
#include <stdlib.h>
#include <string.h>
#include <cutils/log.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <liblights/samsung_lights_helper.h>
/*
* Reads an Integer from a file.
*
* @param path The absolute path string.
* @return The Integer with decimal base, -1 or -errno on error.
*/
static int read_int(char const *path)
{
int fd, len;
int ret = 0;
const int INT_MAX_STRLEN = 10;
char buffer[INT_MAX_STRLEN+1];
fd = open(path, O_RDONLY);
if (fd < 0) {
ret = -errno;
ALOGE("%s: failed to open %s (%s)", __func__, path, strerror(errno));
goto exit;
}
len = read(fd, buffer, INT_MAX_STRLEN-1);
if (len < 0) {
ret = -errno;
ALOGE("%s: failed to read from %s (%s)", __func__, path, strerror(errno));
goto exit;
}
buffer[len] = '\0';
/* now parse the integer from buffer */
char *endptr = NULL;
ret = (int) strtol(buffer, &endptr, 10);
if (ret == 0 && endptr == NULL) {
ret = -1;
ALOGE("%s: failed to extract number from string %s", __func__, buffer);
goto exit;
}
exit:
if (fd >= 0)
close(fd);
return ret;
}
/*
* Writes an Integer to a file.
*
* @param path The absolute path string.
* @param value The Integer value to be written.
* @return 0 on success, -errno on error.
*/
static int write_int(char const *path, const int value)
{
int fd, len, num_bytes;
int ret = 0;
const int INT_MAX_STRLEN = 10;
char buffer[INT_MAX_STRLEN+1];
fd = open(path, O_WRONLY);
if (fd < 0) {
ret = -errno;
ALOGE("%s: failed to open %s (%s)", __func__, path, strerror(errno));
goto exit;
}
num_bytes = sprintf(buffer, "%d", value);
len = write(fd, buffer, num_bytes);
if (len < 0) {
ret = -errno;
ALOGE("%s: failed to write to %s (%s)", __func__, path, strerror(errno));
goto exit;
}
exit:
if (fd >= 0)
close(fd);
return ret;
}
/*
* Set the current button brightness via sysfs.
*
* @param brightness The brightness value.
* @return 0 on success, errno on error.
*/
inline int set_cur_button_brightness(const int brightness)
{
return write_int(BUTTON_BRIGHTNESS_NODE, brightness);
}
/*
* Read the current panel brightness from sysfs.
*
* @return The brightness as Integer, -1 on error.
*/
inline int get_cur_panel_brightness()
{
return read_int(PANEL_BRIGHTNESS_NODE);
}
/*
* Read the maximum panel brightness from sysfs.
*
* @return The brightness as Integer, -1 on error.
*/
inline int get_max_panel_brightness()
{
return read_int(PANEL_MAX_BRIGHTNESS_NODE);
}
/*
* Set the current panel brightness via sysfs.
*
* @param brightness The (scaled) brightness value.
* @return 0 on success, errno on error.
*/
inline int set_cur_panel_brightness(const int brightness)
{
return write_int(PANEL_BRIGHTNESS_NODE, brightness);
}
/*
* Set the maximum panel brightness via sysfs.
*
* @param brightness The brightness value.
* @return 0 on success, errno on error.
*/
inline int set_max_panel_brightness(const int brightness)
{
return write_int(PANEL_MAX_BRIGHTNESS_NODE, brightness);
}
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