display: Enable vsync
* Use the vsync uevents from the kernel to start
surfaceflinger composition.
* This patch also does some code cleanup
- Move copybit specific functions to copybit files.
- Cleanup verbose logging.
Change-Id: I36936e4b0a082cfb0347d8ee7d2bc936e01808e6
diff --git a/libhwcomposer/hwc_external.cpp b/libhwcomposer/hwc_external.cpp
new file mode 100644
index 0000000..3507134
--- /dev/null
+++ b/libhwcomposer/hwc_external.cpp
@@ -0,0 +1,384 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ * Copyright (C) 2012, Code Aurora Forum. All rights reserved.
+ *
+ * Not a Contribution, Apache license notifications and license are
+ * retained for attribution purposes only.
+ *
+ * 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 DEBUG 0
+#include <ctype.h>
+#include <fcntl.h>
+#include <media/IAudioPolicyService.h>
+#include <media/AudioSystem.h>
+#include <utils/threads.h>
+#include <utils/Errors.h>
+#include <utils/Log.h>
+
+#include <linux/msm_mdp.h>
+#include <linux/fb.h>
+#include <sys/ioctl.h>
+#include <sys/poll.h>
+#include <sys/resource.h>
+#include <cutils/properties.h>
+#include "hwc_utils.h"
+#include "hwc_external.h"
+
+namespace qhwc {
+
+
+#define DEVICE_ROOT "/sys/devices/virtual/graphics"
+#define DEVICE_NODE "fb1"
+
+#define SYSFS_CONNECTED DEVICE_ROOT "/" DEVICE_NODE "/connected"
+#define SYSFS_EDID_MODES DEVICE_ROOT "/" DEVICE_NODE "/edid_modes"
+#define SYSFS_HPD DEVICE_ROOT "/" DEVICE_NODE "/hpd"
+
+
+ExternalDisplay::ExternalDisplay(hwc_context_t* ctx):fd(-1),
+ mCurrentID(-1), mHwcContext(ctx)
+{
+ //Enable HPD for HDMI
+ writeHPDOption(1);
+}
+
+ExternalDisplay::~ExternalDisplay()
+{
+ if (fd > 0)
+ close(fd);
+}
+
+struct disp_mode_timing_type {
+ int video_format;
+
+ int active_h;
+ int active_v;
+
+ int front_porch_h;
+ int pulse_width_h;
+ int back_porch_h;
+
+ int front_porch_v;
+ int pulse_width_v;
+ int back_porch_v;
+
+ int pixel_freq;
+ bool interlaced;
+
+ void set_info(struct fb_var_screeninfo &info) const;
+};
+
+void disp_mode_timing_type::set_info(struct fb_var_screeninfo &info) const
+{
+ info.reserved[0] = 0;
+ info.reserved[1] = 0;
+ info.reserved[2] = 0;
+ info.reserved[3] = video_format;
+
+ info.xoffset = 0;
+ info.yoffset = 0;
+ info.xres = active_h;
+ info.yres = active_v;
+
+ info.pixclock = pixel_freq*1000;
+ info.vmode = interlaced ? FB_VMODE_INTERLACED : FB_VMODE_NONINTERLACED;
+
+ info.right_margin = front_porch_h;
+ info.hsync_len = pulse_width_h;
+ info.left_margin = back_porch_h;
+ info.lower_margin = front_porch_v;
+ info.vsync_len = pulse_width_v;
+ info.upper_margin = back_porch_v;
+}
+
+/* Video formates supported by the HDMI Standard */
+/* Indicates the resolution, pix clock and the aspect ratio */
+#define m640x480p60_4_3 1
+#define m720x480p60_4_3 2
+#define m720x480p60_16_9 3
+#define m1280x720p60_16_9 4
+#define m1920x1080i60_16_9 5
+#define m1440x480i60_4_3 6
+#define m1440x480i60_16_9 7
+#define m1920x1080p60_16_9 16
+#define m720x576p50_4_3 17
+#define m720x576p50_16_9 18
+#define m1280x720p50_16_9 19
+#define m1440x576i50_4_3 21
+#define m1440x576i50_16_9 22
+#define m1920x1080p50_16_9 31
+#define m1920x1080p24_16_9 32
+#define m1920x1080p25_16_9 33
+#define m1920x1080p30_16_9 34
+
+static struct disp_mode_timing_type supported_video_mode_lut[] = {
+ {m640x480p60_4_3, 640, 480, 16, 96, 48, 10, 2, 33, 25200, false},
+ {m720x480p60_4_3, 720, 480, 16, 62, 60, 9, 6, 30, 27030, false},
+ {m720x480p60_16_9, 720, 480, 16, 62, 60, 9, 6, 30, 27030, false},
+ {m1280x720p60_16_9, 1280, 720, 110, 40, 220, 5, 5, 20, 74250, false},
+ {m1920x1080i60_16_9, 1920, 540, 88, 44, 148, 2, 5, 5, 74250, false},
+ {m1440x480i60_4_3, 1440, 240, 38, 124, 114, 4, 3, 15, 27000, true},
+ {m1440x480i60_16_9, 1440, 240, 38, 124, 114, 4, 3, 15, 27000, true},
+ {m1920x1080p60_16_9, 1920, 1080, 88, 44, 148, 4, 5, 36, 148500, false},
+ {m720x576p50_4_3, 720, 576, 12, 64, 68, 5, 5, 39, 27000, false},
+ {m720x576p50_16_9, 720, 576, 12, 64, 68, 5, 5, 39, 27000, false},
+ {m1280x720p50_16_9, 1280, 720, 440, 40, 220, 5, 5, 20, 74250, false},
+ {m1440x576i50_4_3, 1440, 288, 24, 126, 138, 2, 3, 19, 27000, true},
+ {m1440x576i50_16_9, 1440, 288, 24, 126, 138, 2, 3, 19, 27000, true},
+ {m1920x1080p50_16_9, 1920, 1080, 528, 44, 148, 4, 5, 36, 148500, false},
+ {m1920x1080p24_16_9, 1920, 1080, 638, 44, 148, 4, 5, 36, 74250, false},
+ {m1920x1080p25_16_9, 1920, 1080, 528, 44, 148, 4, 5, 36, 74250, false},
+ {m1920x1080p30_16_9, 1920, 1080, 88, 44, 148, 4, 5, 36, 74250, false},
+};
+
+int ExternalDisplay::parseResolution(char* edidStr, int* edidModes, int len)
+{
+ char delim = ',';
+ int count = 0;
+ char *start, *end;
+ // EDIDs are string delimited by ','
+ // Ex: 16,4,5,3,32,34,1
+ // Parse this string to get mode(int)
+ start = (char*) edidStr;
+ for(int i=0; i<len; i++) {
+ edidModes[i] = (int) strtol(start, &end, 10);
+ if(*end != delim) {
+ // return as we reached end of string
+ return count;
+ }
+ start = end+1;
+ count++;
+ }
+ return count;
+}
+bool ExternalDisplay::readResolution()
+{
+ int hdmiEDIDFile = open(SYSFS_EDID_MODES, O_RDONLY, 0);
+ int len = -1;
+
+ memset(mEDIDs, 0, sizeof(mEDIDs));
+ memset(mEDIDModes, 0, sizeof(mEDIDModes));
+ mModeCount = 0;
+ if (hdmiEDIDFile < 0) {
+ ALOGD_IF(DEBUG, "%s: edid_modes file '%s' not found",
+ __FUNCTION__, SYSFS_EDID_MODES);
+ return false;
+ } else {
+ len = read(hdmiEDIDFile, mEDIDs, sizeof(mEDIDs)-1);
+ ALOGD_IF(DEBUG, "%s: EDID string: %s length = %d",
+ __FUNCTION__, mEDIDs, len);
+ if ( len <= 0) {
+ ALOGD_IF(DEBUG, "%s: edid_modes file empty '%s'",
+ __FUNCTION__, SYSFS_EDID_MODES);
+ }
+ else {
+ while (len > 1 && isspace(mEDIDs[len-1]))
+ --len;
+ mEDIDs[len] = 0;
+ }
+ }
+ close(hdmiEDIDFile);
+ if(len > 0) {
+ // GEt EDID modes from the EDID strings
+ mModeCount = parseResolution(mEDIDs, mEDIDModes, len);
+ ALOGD_IF(DEBUG, "%s: mModeCount = %d", __FUNCTION__,
+ mModeCount);
+ }
+
+ return (strlen(mEDIDs) > 0);
+}
+
+bool ExternalDisplay::openFramebuffer()
+{
+ if (fd == -1) {
+ fd = open("/dev/graphics/fb1", O_RDWR);
+ if (fd < 0)
+ ALOGD_IF(DEBUG, "%s: /dev/graphics/fb1 not available"
+ "\n", __FUNCTION__);
+ }
+ return (fd > 0);
+}
+
+
+int ExternalDisplay::getModeOrder(int mode)
+{
+ switch (mode) {
+ default:
+ case m1440x480i60_4_3:
+ return 1; // 480i 4:3
+ case m1440x480i60_16_9:
+ return 2; // 480i 16:9
+ case m1440x576i50_4_3:
+ return 3; // i576i 4:3
+ case m1440x576i50_16_9:
+ return 4; // 576i 16:9
+ case m640x480p60_4_3:
+ return 5; // 640x480 4:3
+ case m720x480p60_4_3:
+ return 6; // 480p 4:3
+ case m720x480p60_16_9:
+ return 7; // 480p 16:9
+ case m720x576p50_4_3:
+ return 8; // 576p 4:3
+ case m720x576p50_16_9:
+ return 9; // 576p 16:9
+ case m1920x1080i60_16_9:
+ return 10; // 1080i 16:9
+ case m1280x720p50_16_9:
+ return 11; // 720p@50Hz
+ case m1280x720p60_16_9:
+ return 12; // 720p@60Hz
+ case m1920x1080p24_16_9:
+ return 13; //1080p@24Hz
+ case m1920x1080p25_16_9:
+ return 14; //108-p@25Hz
+ case m1920x1080p30_16_9:
+ return 15; //1080p@30Hz
+ case m1920x1080p50_16_9:
+ return 16; //1080p@50Hz
+ case m1920x1080p60_16_9:
+ return 17; //1080p@60Hz
+ }
+}
+
+// Get the best mode for the current HD TV
+int ExternalDisplay::getBestMode() {
+ int bestOrder = 0;
+ int bestMode = m640x480p60_4_3;
+
+ // for all the edid read, get the best mode
+ for(int i = 0; i < mModeCount; i++) {
+ int mode = mEDIDModes[i];
+ int order = getModeOrder(mode);
+ if (order > bestOrder) {
+ bestOrder = order;
+ bestMode = mode;
+ }
+ }
+ return bestMode;
+}
+
+inline bool ExternalDisplay::isValidMode(int ID)
+{
+ return ((ID >= m640x480p60_4_3) && (ID <= m1920x1080p30_16_9));
+}
+
+void ExternalDisplay::setResolution(int ID)
+{
+ struct fb_var_screeninfo info;
+ if (!openFramebuffer())
+ return;
+ //If its a valid mode and its a new ID - update var_screeninfo
+ if ((isValidMode(ID)) && mCurrentID != ID) {
+ const struct disp_mode_timing_type *mode =
+ &supported_video_mode_lut[0];
+ unsigned count = sizeof(supported_video_mode_lut)/sizeof
+ (*supported_video_mode_lut);
+ for (unsigned int i = 0; i < count; ++i) {
+ const struct disp_mode_timing_type *cur =
+ &supported_video_mode_lut[i];
+ if (cur->video_format == ID)
+ mode = cur;
+ }
+ ioctl(fd, FBIOGET_VSCREENINFO, &info);
+ ALOGD_IF(DEBUG, "%s: GET Info<ID=%d %dx%d (%d,%d,%d),"
+ "(%d,%d,%d) %dMHz>", __FUNCTION__,
+ info.reserved[3], info.xres, info.yres,
+ info.right_margin, info.hsync_len, info.left_margin,
+ info.lower_margin, info.vsync_len, info.upper_margin,
+ info.pixclock/1000/1000);
+ mode->set_info(info);
+ ALOGD_IF(DEBUG, "%s: SET Info<ID=%d => Info<ID=%d %dx%d"
+ "(%d,%d,%d), (%d,%d,%d) %dMHz>", __FUNCTION__, ID,
+ info.reserved[3], info.xres, info.yres,
+ info.right_margin, info.hsync_len, info.left_margin,
+ info.lower_margin, info.vsync_len, info.upper_margin,
+ info.pixclock/1000/1000);
+ info.activate = FB_ACTIVATE_NOW | FB_ACTIVATE_ALL | FB_ACTIVATE_FORCE;
+ ioctl(fd, FBIOPUT_VSCREENINFO, &info);
+ mCurrentID = ID;
+ }
+ //Powerup
+ ioctl(fd, FBIOBLANK, FB_BLANK_UNBLANK);
+ ioctl(fd, FBIOGET_VSCREENINFO, &info);
+ //Pan_Display
+ ioctl(fd, FBIOPAN_DISPLAY, &info);
+ property_set("hw.hdmiON", "1");
+}
+
+
+int ExternalDisplay::getExternalDisplay() const
+{
+ return mExternalDisplay;
+}
+
+void ExternalDisplay::setExternalDisplayStatus(int connected)
+{
+
+ hwc_context_t* ctx = mHwcContext;
+ if(ctx) {
+ ALOGD_IF(DEBUG, "%s: status = %d", __FUNCTION__,
+ connected);
+ if(connected) {
+ readResolution();
+ //Get the best mode and set
+ // TODO: DO NOT call this for WFD
+ setResolution(getBestMode());
+ } else {
+ close(fd);
+ }
+ // Store the external display
+ mExternalDisplay = connected;
+ //Invalidate
+ hwc_procs* proc = (hwc_procs*)ctx->device.reserved_proc[0];
+ if(!proc) {
+ ALOGD_IF(DEBUG, "%s: HWC proc not registered",
+ __FUNCTION__);
+ } else {
+ /* Trigger redraw */
+ ALOGD_IF(DEBUG, "%s: Invalidate !!", __FUNCTION__);
+ proc->invalidate(proc);
+ }
+ }
+ return;
+}
+
+bool ExternalDisplay::writeHPDOption(int userOption) const
+{
+ bool ret = true;
+ int hdmiHPDFile = open(SYSFS_HPD,O_RDWR, 0);
+ if (hdmiHPDFile < 0) {
+ ALOGD_IF(DEBUG, "%s: state file '%s' not found : ret%d"
+ "err str: %s", __FUNCTION__, SYSFS_HPD, hdmiHPDFile, strerror(errno));
+ ret = false;
+ } else {
+ int err = -1;
+ ALOGD_IF(DEBUG, "%s: option = %d", __FUNCTION__,
+ userOption);
+ if(userOption)
+ err = write(hdmiHPDFile, "1", 2);
+ else
+ err = write(hdmiHPDFile, "0" , 2);
+ if (err <= 0) {
+ ALOGD_IF(DEBUG, "%s: file write failed '%s'",
+ __FUNCTION__, SYSFS_HPD);
+ ret = false;
+ }
+ close(hdmiHPDFile);
+ }
+ return ret;
+}
+};
+