| Naseer Ahmed | a87da60 | 2012-07-01 23:54:19 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (c) 2012, Code Aurora Forum. All rights reserved. |
| 3 | |
| 4 | * Redistribution and use in source and binary forms, with or without |
| 5 | * modification, are permitted provided that the following conditions are |
| 6 | * met: |
| 7 | * * Redistributions of source code must retain the above copyright |
| 8 | * notice, this list of conditions and the following disclaimer. |
| 9 | * * Redistributions in binary form must reproduce the above |
| 10 | * copyright notice, this list of conditions and the following |
| 11 | * disclaimer in the documentation and/or other materials provided |
| 12 | * with the distribution. |
| 13 | * * Neither the name of Code Aurora Forum, Inc. nor the names of its |
| 14 | * contributors may be used to endorse or promote products derived |
| 15 | * from this software without specific prior written permission. |
| 16 | * |
| 17 | * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED |
| 18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| 19 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT |
| 20 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS |
| 21 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 22 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 23 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR |
| 24 | * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| 25 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE |
| 26 | * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN |
| 27 | * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 28 | */ |
| 29 | #include <cutils/log.h> |
| 30 | #include <fcntl.h> |
| 31 | #include <linux/fb.h> |
| 32 | #include "mdp_version.h" |
| 33 | |
| 34 | ANDROID_SINGLETON_STATIC_INSTANCE(qdutils::MDPVersion); |
| 35 | namespace qdutils { |
| 36 | |
| 37 | static int getMDPVersionFromFB() |
| 38 | { |
| 39 | int fb_fd = open("/dev/graphics/fb0", O_RDWR); |
| 40 | int mdp_version = MDP_V_UNKNOWN; |
| 41 | struct fb_fix_screeninfo fb_finfo; |
| 42 | if (ioctl(fb_fd, FBIOGET_FSCREENINFO, &fb_finfo) < 0) { |
| 43 | ALOGE("FBIOGET_FSCREENINFO failed"); |
| 44 | mdp_version = MDP_V_UNKNOWN; |
| 45 | } else { |
| 46 | if(!strncmp(fb_finfo.id, "msmfb", 5)) { |
| 47 | char str_ver[4] = { 0 }; |
| 48 | memcpy(str_ver, &fb_finfo.id[5], 3); |
| 49 | str_ver[3] = '\0'; |
| 50 | mdp_version = atoi(str_ver); |
| 51 | |
| 52 | //Normalize MDP version to ease comparison. |
| 53 | //This is needed only because |
| 54 | //MDP 3.0.3 reports value as 303 which |
| 55 | //is more than all the others |
| 56 | if (mdp_version < 100) |
| 57 | mdp_version *= 10; |
| 58 | |
| 59 | } else if (!strncmp(fb_finfo.id, "mdssfb", 6)) { |
| 60 | mdp_version = MDSS_V5; |
| 61 | } else { |
| 62 | mdp_version = MDP_V_UNKNOWN; |
| 63 | } |
| 64 | } |
| 65 | close(fb_fd); |
| 66 | return mdp_version; |
| 67 | } |
| 68 | |
| 69 | MDPVersion::MDPVersion() |
| 70 | { |
| 71 | mMDPVersion = getMDPVersionFromFB(); |
| 72 | if((mMDPVersion >= MDP_V4_0) || (mMDPVersion == MDP_V_UNKNOWN)) |
| 73 | mHasOverlay = true; |
| 74 | else |
| 75 | mHasOverlay = false; |
| 76 | } |
| 77 | }; //namespace qdutils |
| 78 | |