| /* |
| * 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. |
| */ |
| |
| #include <errno.h> |
| #include <fcntl.h> |
| #include <linux/fb.h> |
| #include <pthread.h> |
| #include <stdarg.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <sys/ioctl.h> |
| #include <sys/time.h> |
| #include <sys/types.h> |
| #include <time.h> |
| #include <unistd.h> |
| |
| #include <string> |
| |
| #include "common.h" |
| #include "device.h" |
| #include "ui.h" |
| #include "screen_ui.h" |
| |
| #define kFBDevice "/dev/graphics/fb0" |
| |
| #define FBIO_PSB_SET_RGBX _IOWR('F', 0x42, struct fb_var_screeninfo) |
| #define FBIO_PSB_SET_RMODE _IOWR('F', 0x43, struct fb_var_screeninfo) |
| |
| class FuguUI : public ScreenRecoveryUI { |
| public: |
| bool Init(const std::string& locale) override { |
| SetupDisplayMode(); |
| return ScreenRecoveryUI::Init(locale); |
| } |
| |
| void SetupDisplayMode() { |
| printf("opening fb %s\n", kFBDevice); |
| int fb_dev = open(kFBDevice, O_RDWR); |
| if (fb_dev == -1) { |
| fprintf(stderr, "FAIL: failed to open \"%s\": %s\n", kFBDevice, strerror(errno)); |
| return; |
| } |
| |
| struct fb_var_screeninfo current_mode; |
| if (ioctl(fb_dev, FBIO_PSB_SET_RMODE, ¤t_mode) == -1) { |
| fprintf(stderr, "FAIL: unable to set RGBX mode on display controller: %s\n", |
| strerror(errno)); |
| return; |
| } |
| |
| if (ioctl(fb_dev, FBIOGET_VSCREENINFO, ¤t_mode) == -1) { |
| fprintf(stderr, "FAIL: unable to get mode: %s\n", strerror(errno)); |
| return; |
| } |
| |
| if (ioctl(fb_dev, FBIOBLANK, FB_BLANK_POWERDOWN) == -1) { |
| fprintf(stderr, "FAIL: unable to blank display: %s\n", strerror(errno)); |
| return; |
| } |
| |
| current_mode.bits_per_pixel = 32; |
| current_mode.red.offset = 0; |
| current_mode.red.length = 8; |
| current_mode.green.offset = 8; |
| current_mode.green.length = 8; |
| current_mode.blue.offset = 16; |
| current_mode.blue.length = 8; |
| |
| if (ioctl(fb_dev, FBIOPUT_VSCREENINFO, ¤t_mode) == -1) { |
| fprintf(stderr, "FAIL: unable to set mode: %s\n", strerror(errno)); |
| return; |
| } |
| |
| if (ioctl(fb_dev, FBIO_PSB_SET_RGBX, ¤t_mode) == -1) { |
| fprintf(stderr, "FAIL: unable to set RGBX mode on display controller: %s\n", |
| strerror(errno)); |
| return; |
| } |
| |
| if (ioctl(fb_dev, FBIOBLANK, FB_BLANK_UNBLANK) == -1) { |
| fprintf(stderr, "FAIL: unable to unblank display: %s\n", strerror(errno)); |
| return; |
| } |
| } |
| }; |
| |
| Device* make_device() { |
| return new Device(new FuguUI); |
| } |