Merge up to AOSP marshmallow-release
In order to maintain compatibility with older trees, we now have
minadbd.old and minui.old. I had to use a TARGET_GLOBAL_CFLAG to
handle ifdef issues in minui/minui.d because healthd includes
minui/minui.h and there was no other alternative to make minui.h
compatible with older trees without having to modify healthd rules
which is outside of TWRP.
Note that the new minui does not currently have support for qcom
overlay graphics. Support for this graphics mode will likely be
added in a later patch set. If you are building in a 6.0 tree and
have a device that needs qcom overlay graphics, be warned, as off
mode charging may not work properly. A dead battery in this case
could potentially brick your device if it is unable to charge as
healthd handles charging duties.
Update rules for building toolbox and add rules for making toybox
Use permissive.sh in init.rc which will follow symlinks so we do
not have to worry about what binary is supplying the setenforce
functionality (toolbox, toybox, or busybox).
Fix a few warnings in the main recovery binary source code.
Fix a few includes that were missing that prevented compiling in
6.0
Change-Id: Ia67aa2107d260883da5e365475a19bea538e8b97
diff --git a/minui/graphics_fbdev.cpp b/minui/graphics_fbdev.cpp
new file mode 100644
index 0000000..512a7d0
--- /dev/null
+++ b/minui/graphics_fbdev.cpp
@@ -0,0 +1,227 @@
+/*
+ * Copyright (C) 2014 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 <stdbool.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <fcntl.h>
+#include <stdio.h>
+
+#include <sys/cdefs.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#include <sys/types.h>
+
+#include <linux/fb.h>
+#include <linux/kd.h>
+
+#include "minui.h"
+#include "graphics.h"
+
+static GRSurface* fbdev_init(minui_backend*);
+static GRSurface* fbdev_flip(minui_backend*);
+static void fbdev_blank(minui_backend*, bool);
+static void fbdev_exit(minui_backend*);
+
+static GRSurface gr_framebuffer[2];
+static bool double_buffered;
+static GRSurface* gr_draw = NULL;
+static int displayed_buffer;
+
+static fb_var_screeninfo vi;
+static int fb_fd = -1;
+
+static minui_backend my_backend = {
+ .init = fbdev_init,
+ .flip = fbdev_flip,
+ .blank = fbdev_blank,
+ .exit = fbdev_exit,
+};
+
+minui_backend* open_fbdev() {
+ return &my_backend;
+}
+
+static void fbdev_blank(minui_backend* backend __unused, bool blank)
+{
+#if defined(TW_NO_SCREEN_BLANK) && defined(TW_BRIGHTNESS_PATH) && defined(TW_MAX_BRIGHTNESS)
+ int fd;
+ char brightness[4];
+ snprintf(brightness, 4, "%03d", TW_MAX_BRIGHTNESS/2);
+
+ fd = open(TW_BRIGHTNESS_PATH, O_RDWR);
+ if (fd < 0) {
+ perror("cannot open LCD backlight");
+ return;
+ }
+ write(fd, blank ? "000" : brightness, 3);
+ close(fd);
+#else
+ int ret;
+
+ ret = ioctl(fb_fd, FBIOBLANK, blank ? FB_BLANK_POWERDOWN : FB_BLANK_UNBLANK);
+ if (ret < 0)
+ perror("ioctl(): blank");
+#endif
+}
+
+static void set_displayed_framebuffer(unsigned n)
+{
+ if (n > 1 || !double_buffered) return;
+
+ vi.yres_virtual = gr_framebuffer[0].height * 2;
+ vi.yoffset = n * gr_framebuffer[0].height;
+ vi.bits_per_pixel = gr_framebuffer[0].pixel_bytes * 8;
+ if (ioctl(fb_fd, FBIOPUT_VSCREENINFO, &vi) < 0) {
+ perror("active fb swap failed");
+ }
+ displayed_buffer = n;
+}
+
+static GRSurface* fbdev_init(minui_backend* backend) {
+ int fd = open("/dev/graphics/fb0", O_RDWR);
+ if (fd == -1) {
+ perror("cannot open fb0");
+ return NULL;
+ }
+
+ fb_fix_screeninfo fi;
+ if (ioctl(fd, FBIOGET_FSCREENINFO, &fi) < 0) {
+ perror("failed to get fb0 info");
+ close(fd);
+ return NULL;
+ }
+
+ if (ioctl(fd, FBIOGET_VSCREENINFO, &vi) < 0) {
+ perror("failed to get fb0 info");
+ close(fd);
+ return NULL;
+ }
+
+ // We print this out for informational purposes only, but
+ // throughout we assume that the framebuffer device uses an RGBX
+ // pixel format. This is the case for every development device I
+ // have access to. For some of those devices (eg, hammerhead aka
+ // Nexus 5), FBIOGET_VSCREENINFO *reports* that it wants a
+ // different format (XBGR) but actually produces the correct
+ // results on the display when you write RGBX.
+ //
+ // If you have a device that actually *needs* another pixel format
+ // (ie, BGRX, or 565), patches welcome...
+
+ printf("fb0 reports (possibly inaccurate):\n"
+ " vi.bits_per_pixel = %d\n"
+ " vi.red.offset = %3d .length = %3d\n"
+ " vi.green.offset = %3d .length = %3d\n"
+ " vi.blue.offset = %3d .length = %3d\n",
+ vi.bits_per_pixel,
+ vi.red.offset, vi.red.length,
+ vi.green.offset, vi.green.length,
+ vi.blue.offset, vi.blue.length);
+
+ void* bits = mmap(0, fi.smem_len, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
+ if (bits == MAP_FAILED) {
+ perror("failed to mmap framebuffer");
+ close(fd);
+ return NULL;
+ }
+
+ memset(bits, 0, fi.smem_len);
+
+ gr_framebuffer[0].width = vi.xres;
+ gr_framebuffer[0].height = vi.yres;
+ gr_framebuffer[0].row_bytes = fi.line_length;
+ gr_framebuffer[0].pixel_bytes = vi.bits_per_pixel / 8;
+ gr_framebuffer[0].data = reinterpret_cast<uint8_t*>(bits);
+ memset(gr_framebuffer[0].data, 0, gr_framebuffer[0].height * gr_framebuffer[0].row_bytes);
+
+ /* check if we can use double buffering */
+ if (vi.yres * fi.line_length * 2 <= fi.smem_len) {
+ double_buffered = true;
+
+ memcpy(gr_framebuffer+1, gr_framebuffer, sizeof(GRSurface));
+ gr_framebuffer[1].data = gr_framebuffer[0].data +
+ gr_framebuffer[0].height * gr_framebuffer[0].row_bytes;
+
+ gr_draw = gr_framebuffer+1;
+
+ } else {
+ double_buffered = false;
+
+ // Without double-buffering, we allocate RAM for a buffer to
+ // draw in, and then "flipping" the buffer consists of a
+ // memcpy from the buffer we allocated to the framebuffer.
+
+ gr_draw = (GRSurface*) malloc(sizeof(GRSurface));
+ memcpy(gr_draw, gr_framebuffer, sizeof(GRSurface));
+ gr_draw->data = (unsigned char*) malloc(gr_draw->height * gr_draw->row_bytes);
+ if (!gr_draw->data) {
+ perror("failed to allocate in-memory surface");
+ return NULL;
+ }
+ }
+
+ memset(gr_draw->data, 0, gr_draw->height * gr_draw->row_bytes);
+ fb_fd = fd;
+ set_displayed_framebuffer(0);
+
+ printf("framebuffer: %d (%d x %d)\n", fb_fd, gr_draw->width, gr_draw->height);
+
+ fbdev_blank(backend, true);
+ fbdev_blank(backend, false);
+
+ return gr_draw;
+}
+
+static GRSurface* fbdev_flip(minui_backend* backend __unused) {
+ if (double_buffered) {
+#if defined(RECOVERY_BGRA)
+ // In case of BGRA, do some byte swapping
+ unsigned int idx;
+ unsigned char tmp;
+ unsigned char* ucfb_vaddr = (unsigned char*)gr_draw->data;
+ for (idx = 0 ; idx < (gr_draw->height * gr_draw->row_bytes);
+ idx += 4) {
+ tmp = ucfb_vaddr[idx];
+ ucfb_vaddr[idx ] = ucfb_vaddr[idx + 2];
+ ucfb_vaddr[idx + 2] = tmp;
+ }
+#endif
+ // Change gr_draw to point to the buffer currently displayed,
+ // then flip the driver so we're displaying the other buffer
+ // instead.
+ gr_draw = gr_framebuffer + displayed_buffer;
+ set_displayed_framebuffer(1-displayed_buffer);
+ } else {
+ // Copy from the in-memory surface to the framebuffer.
+ memcpy(gr_framebuffer[0].data, gr_draw->data,
+ gr_draw->height * gr_draw->row_bytes);
+ }
+ return gr_draw;
+}
+
+static void fbdev_exit(minui_backend* backend __unused) {
+ close(fb_fd);
+ fb_fd = -1;
+
+ if (!double_buffered && gr_draw) {
+ free(gr_draw->data);
+ free(gr_draw);
+ }
+ gr_draw = NULL;
+}