9ccb3975c7
* 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: I8ca3cd7a7ceb53655ed0fcf39ac2cb35e6cbe890
385 lines
12 KiB
C++
385 lines
12 KiB
C++
/*
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* Copyright (C) 2010 The Android Open Source Project
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* Copyright (C) 2012, Code Aurora Forum. All rights reserved.
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*
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* Not a Contribution, Apache license notifications and license are
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* retained for attribution purposes only.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#define DEBUG 0
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#include <ctype.h>
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#include <fcntl.h>
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#include <media/IAudioPolicyService.h>
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#include <media/AudioSystem.h>
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#include <utils/threads.h>
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#include <utils/Errors.h>
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#include <utils/Log.h>
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#include <linux/msm_mdp.h>
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#include <linux/fb.h>
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#include <sys/ioctl.h>
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#include <sys/poll.h>
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#include <sys/resource.h>
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#include <cutils/properties.h>
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#include "hwc_utils.h"
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#include "hwc_external.h"
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namespace qhwc {
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#define DEVICE_ROOT "/sys/devices/virtual/graphics"
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#define DEVICE_NODE "fb1"
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#define SYSFS_CONNECTED DEVICE_ROOT "/" DEVICE_NODE "/connected"
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#define SYSFS_EDID_MODES DEVICE_ROOT "/" DEVICE_NODE "/edid_modes"
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#define SYSFS_HPD DEVICE_ROOT "/" DEVICE_NODE "/hpd"
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ExternalDisplay::ExternalDisplay(hwc_context_t* ctx):fd(-1),
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mCurrentID(-1), mHwcContext(ctx)
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{
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//Enable HPD for HDMI
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writeHPDOption(1);
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}
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ExternalDisplay::~ExternalDisplay()
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{
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if (fd > 0)
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close(fd);
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}
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struct disp_mode_timing_type {
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int video_format;
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int active_h;
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int active_v;
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int front_porch_h;
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int pulse_width_h;
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int back_porch_h;
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int front_porch_v;
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int pulse_width_v;
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int back_porch_v;
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int pixel_freq;
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bool interlaced;
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void set_info(struct fb_var_screeninfo &info) const;
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};
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void disp_mode_timing_type::set_info(struct fb_var_screeninfo &info) const
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{
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info.reserved[0] = 0;
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info.reserved[1] = 0;
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info.reserved[2] = 0;
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info.reserved[3] = video_format;
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info.xoffset = 0;
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info.yoffset = 0;
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info.xres = active_h;
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info.yres = active_v;
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info.pixclock = pixel_freq*1000;
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info.vmode = interlaced ? FB_VMODE_INTERLACED : FB_VMODE_NONINTERLACED;
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info.right_margin = front_porch_h;
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info.hsync_len = pulse_width_h;
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info.left_margin = back_porch_h;
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info.lower_margin = front_porch_v;
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info.vsync_len = pulse_width_v;
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info.upper_margin = back_porch_v;
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}
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/* Video formates supported by the HDMI Standard */
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/* Indicates the resolution, pix clock and the aspect ratio */
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#define m640x480p60_4_3 1
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#define m720x480p60_4_3 2
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#define m720x480p60_16_9 3
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#define m1280x720p60_16_9 4
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#define m1920x1080i60_16_9 5
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#define m1440x480i60_4_3 6
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#define m1440x480i60_16_9 7
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#define m1920x1080p60_16_9 16
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#define m720x576p50_4_3 17
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#define m720x576p50_16_9 18
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#define m1280x720p50_16_9 19
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#define m1440x576i50_4_3 21
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#define m1440x576i50_16_9 22
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#define m1920x1080p50_16_9 31
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#define m1920x1080p24_16_9 32
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#define m1920x1080p25_16_9 33
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#define m1920x1080p30_16_9 34
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static struct disp_mode_timing_type supported_video_mode_lut[] = {
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{m640x480p60_4_3, 640, 480, 16, 96, 48, 10, 2, 33, 25200, false},
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{m720x480p60_4_3, 720, 480, 16, 62, 60, 9, 6, 30, 27030, false},
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{m720x480p60_16_9, 720, 480, 16, 62, 60, 9, 6, 30, 27030, false},
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{m1280x720p60_16_9, 1280, 720, 110, 40, 220, 5, 5, 20, 74250, false},
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{m1920x1080i60_16_9, 1920, 540, 88, 44, 148, 2, 5, 5, 74250, false},
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{m1440x480i60_4_3, 1440, 240, 38, 124, 114, 4, 3, 15, 27000, true},
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{m1440x480i60_16_9, 1440, 240, 38, 124, 114, 4, 3, 15, 27000, true},
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{m1920x1080p60_16_9, 1920, 1080, 88, 44, 148, 4, 5, 36, 148500, false},
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{m720x576p50_4_3, 720, 576, 12, 64, 68, 5, 5, 39, 27000, false},
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{m720x576p50_16_9, 720, 576, 12, 64, 68, 5, 5, 39, 27000, false},
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{m1280x720p50_16_9, 1280, 720, 440, 40, 220, 5, 5, 20, 74250, false},
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{m1440x576i50_4_3, 1440, 288, 24, 126, 138, 2, 3, 19, 27000, true},
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{m1440x576i50_16_9, 1440, 288, 24, 126, 138, 2, 3, 19, 27000, true},
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{m1920x1080p50_16_9, 1920, 1080, 528, 44, 148, 4, 5, 36, 148500, false},
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{m1920x1080p24_16_9, 1920, 1080, 638, 44, 148, 4, 5, 36, 74250, false},
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{m1920x1080p25_16_9, 1920, 1080, 528, 44, 148, 4, 5, 36, 74250, false},
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{m1920x1080p30_16_9, 1920, 1080, 88, 44, 148, 4, 5, 36, 74250, false},
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};
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int ExternalDisplay::parseResolution(char* edidStr, int* edidModes, int len)
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{
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char delim = ',';
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int count = 0;
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char *start, *end;
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// EDIDs are string delimited by ','
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// Ex: 16,4,5,3,32,34,1
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// Parse this string to get mode(int)
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start = (char*) edidStr;
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for(int i=0; i<len; i++) {
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edidModes[i] = (int) strtol(start, &end, 10);
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if(*end != delim) {
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// return as we reached end of string
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return count;
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}
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start = end+1;
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count++;
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}
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return count;
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}
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bool ExternalDisplay::readResolution()
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{
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int hdmiEDIDFile = open(SYSFS_EDID_MODES, O_RDONLY, 0);
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int len = -1;
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memset(mEDIDs, 0, sizeof(mEDIDs));
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memset(mEDIDModes, 0, sizeof(mEDIDModes));
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mModeCount = 0;
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if (hdmiEDIDFile < 0) {
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ALOGD_IF(DEBUG, "%s: edid_modes file '%s' not found",
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__FUNCTION__, SYSFS_EDID_MODES);
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return false;
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} else {
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len = read(hdmiEDIDFile, mEDIDs, sizeof(mEDIDs)-1);
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ALOGD_IF(DEBUG, "%s: EDID string: %s length = %d",
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__FUNCTION__, mEDIDs, len);
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if ( len <= 0) {
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ALOGD_IF(DEBUG, "%s: edid_modes file empty '%s'",
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__FUNCTION__, SYSFS_EDID_MODES);
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}
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else {
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while (len > 1 && isspace(mEDIDs[len-1]))
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--len;
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mEDIDs[len] = 0;
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}
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}
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close(hdmiEDIDFile);
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if(len > 0) {
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// GEt EDID modes from the EDID strings
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mModeCount = parseResolution(mEDIDs, mEDIDModes, len);
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ALOGD_IF(DEBUG, "%s: mModeCount = %d", __FUNCTION__,
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mModeCount);
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}
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return (strlen(mEDIDs) > 0);
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}
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bool ExternalDisplay::openFramebuffer()
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{
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if (fd == -1) {
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fd = open("/dev/graphics/fb1", O_RDWR);
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if (fd < 0)
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ALOGD_IF(DEBUG, "%s: /dev/graphics/fb1 not available"
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"\n", __FUNCTION__);
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}
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return (fd > 0);
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}
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int ExternalDisplay::getModeOrder(int mode)
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{
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switch (mode) {
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default:
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case m1440x480i60_4_3:
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return 1; // 480i 4:3
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case m1440x480i60_16_9:
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return 2; // 480i 16:9
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case m1440x576i50_4_3:
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return 3; // i576i 4:3
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case m1440x576i50_16_9:
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return 4; // 576i 16:9
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case m640x480p60_4_3:
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return 5; // 640x480 4:3
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case m720x480p60_4_3:
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return 6; // 480p 4:3
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case m720x480p60_16_9:
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return 7; // 480p 16:9
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case m720x576p50_4_3:
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return 8; // 576p 4:3
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case m720x576p50_16_9:
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return 9; // 576p 16:9
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case m1920x1080i60_16_9:
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return 10; // 1080i 16:9
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case m1280x720p50_16_9:
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return 11; // 720p@50Hz
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case m1280x720p60_16_9:
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return 12; // 720p@60Hz
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case m1920x1080p24_16_9:
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return 13; //1080p@24Hz
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case m1920x1080p25_16_9:
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return 14; //108-p@25Hz
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case m1920x1080p30_16_9:
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return 15; //1080p@30Hz
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case m1920x1080p50_16_9:
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return 16; //1080p@50Hz
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case m1920x1080p60_16_9:
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return 17; //1080p@60Hz
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}
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}
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// Get the best mode for the current HD TV
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int ExternalDisplay::getBestMode() {
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int bestOrder = 0;
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int bestMode = m640x480p60_4_3;
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// for all the edid read, get the best mode
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for(int i = 0; i < mModeCount; i++) {
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int mode = mEDIDModes[i];
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int order = getModeOrder(mode);
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if (order > bestOrder) {
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bestOrder = order;
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bestMode = mode;
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}
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}
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return bestMode;
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}
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inline bool ExternalDisplay::isValidMode(int ID)
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{
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return ((ID >= m640x480p60_4_3) && (ID <= m1920x1080p30_16_9));
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}
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void ExternalDisplay::setResolution(int ID)
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{
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struct fb_var_screeninfo info;
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if (!openFramebuffer())
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return;
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//If its a valid mode and its a new ID - update var_screeninfo
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if ((isValidMode(ID)) && mCurrentID != ID) {
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const struct disp_mode_timing_type *mode =
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&supported_video_mode_lut[0];
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unsigned count = sizeof(supported_video_mode_lut)/sizeof
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(*supported_video_mode_lut);
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for (unsigned int i = 0; i < count; ++i) {
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const struct disp_mode_timing_type *cur =
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&supported_video_mode_lut[i];
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if (cur->video_format == ID)
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mode = cur;
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}
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ioctl(fd, FBIOGET_VSCREENINFO, &info);
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ALOGD_IF(DEBUG, "%s: GET Info<ID=%d %dx%d (%d,%d,%d),"
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"(%d,%d,%d) %dMHz>", __FUNCTION__,
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info.reserved[3], info.xres, info.yres,
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info.right_margin, info.hsync_len, info.left_margin,
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info.lower_margin, info.vsync_len, info.upper_margin,
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info.pixclock/1000/1000);
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mode->set_info(info);
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ALOGD_IF(DEBUG, "%s: SET Info<ID=%d => Info<ID=%d %dx%d"
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"(%d,%d,%d), (%d,%d,%d) %dMHz>", __FUNCTION__, ID,
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info.reserved[3], info.xres, info.yres,
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info.right_margin, info.hsync_len, info.left_margin,
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info.lower_margin, info.vsync_len, info.upper_margin,
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info.pixclock/1000/1000);
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info.activate = FB_ACTIVATE_NOW | FB_ACTIVATE_ALL | FB_ACTIVATE_FORCE;
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ioctl(fd, FBIOPUT_VSCREENINFO, &info);
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mCurrentID = ID;
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}
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//Powerup
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ioctl(fd, FBIOBLANK, FB_BLANK_UNBLANK);
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ioctl(fd, FBIOGET_VSCREENINFO, &info);
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//Pan_Display
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ioctl(fd, FBIOPAN_DISPLAY, &info);
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property_set("hw.hdmiON", "1");
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}
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int ExternalDisplay::getExternalDisplay() const
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{
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return mExternalDisplay;
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}
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void ExternalDisplay::setExternalDisplayStatus(int connected)
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{
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hwc_context_t* ctx = mHwcContext;
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if(ctx) {
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ALOGD_IF(DEBUG, "%s: status = %d", __FUNCTION__,
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connected);
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if(connected) {
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readResolution();
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//Get the best mode and set
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// TODO: DO NOT call this for WFD
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setResolution(getBestMode());
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} else {
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close(fd);
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}
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// Store the external display
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mExternalDisplay = connected;
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//Invalidate
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hwc_procs* proc = (hwc_procs*)ctx->device.reserved_proc[0];
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if(!proc) {
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ALOGD_IF(DEBUG, "%s: HWC proc not registered",
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__FUNCTION__);
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} else {
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/* Trigger redraw */
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ALOGD_IF(DEBUG, "%s: Invalidate !!", __FUNCTION__);
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proc->invalidate(proc);
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}
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}
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return;
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}
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bool ExternalDisplay::writeHPDOption(int userOption) const
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{
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bool ret = true;
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int hdmiHPDFile = open(SYSFS_HPD,O_RDWR, 0);
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if (hdmiHPDFile < 0) {
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ALOGD_IF(DEBUG, "%s: state file '%s' not found : ret%d"
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"err str: %s", __FUNCTION__, SYSFS_HPD, hdmiHPDFile, strerror(errno));
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ret = false;
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} else {
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int err = -1;
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ALOGD_IF(DEBUG, "%s: option = %d", __FUNCTION__,
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userOption);
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if(userOption)
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err = write(hdmiHPDFile, "1", 2);
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else
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err = write(hdmiHPDFile, "0" , 2);
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if (err <= 0) {
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ALOGD_IF(DEBUG, "%s: file write failed '%s'",
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__FUNCTION__, SYSFS_HPD);
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ret = false;
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}
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close(hdmiHPDFile);
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}
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return ret;
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}
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};
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