1 #!/bin/sh
2 PATH=$PATH:/usr/sbin
4 # Check if an fb device is available. If not then just go ahead and
5 # exit because we have no display.
6 fbset > /dev/null 2>&1
7 if [ "$?" == "1" ]
8 then
9 # looks like there is no display, so let's exit
10 exit 0
11 fi
13 BITSPERPIXEL="$(fbset | grep geom | awk '{print $6}')"
14 YRES="$(fbset | grep geom | awk '{print $3}')"
16 CPUTYPE="$(cputype)"
18 if [ "$1" = "" ]; then
19 echo PVR-INIT: Please use start, stop, or restart.
20 exit 1
21 fi
23 if [ "$1" = "stop" -o "$1" = "restart" ]; then
24 echo Stopping PVR
25 rmmod bufferclass_ti
26 rmmod omaplfb 2>/dev/null
27 rmmod pvrsrvkm 2>/dev/null
28 fi
30 if [ "$1" = "stop" ]; then
31 exit 0
32 fi
34 # Set RGBA ordering to something the drivers like
35 if [ "$BITSPERPIXEL" = "32" ] ; then
36 fbset -rgba 8/16,8/8,8/0,8/24
37 fi
39 # Try to enable triple buffering when there's enough VRAM
40 fbset -vyres $(expr $YRES \* 3)
42 sgxprepare () {
43 echo Starting PVR
44 insmod $(busybox find /lib/modules/$(uname -r) -name "pvrsrvkm.ko")
46 if [ "$?" != "0" ]
47 then
48 echo "Could not find pvrsrvkm driver"
49 exit 1
50 fi
52 modprobe omaplfb
53 modprobe bufferclass_ti
55 pvr_maj=`grep "pvrsrvkm$" /proc/devices | cut -b1,2,3`
56 bc_maj=`grep "bc" /proc/devices | cut -b1,2,3`
58 if [ -e /dev/pvrsrvkm ] ; then
59 rm -f /dev/pvrsrvkm
60 fi
62 mknod /dev/pvrsrvkm c $pvr_maj 0
63 chmod 666 /dev/pvrsrvkm
65 touch /etc/powervr-esrev
67 SAVED_ESREVISION="$(cat /etc/powervr-esrev)"
68 }
70 sgxfinish () {
71 # Fix up a bug in opkg
72 if [ $(readlink /usr/lib/libsrv_um.so) != $(readlink /usr/lib/libsrv_um.so.1) ] ; then
73 cd /usr/lib
74 ln -sf $(readlink /usr/lib/libsrv_um.so.1) libsrv_um.so
75 fi
77 if [ "${ES_REVISION}" != "${SAVED_ESREVISION}" ] ; then
78 echo -n "Starting SGX fixup for"
79 echo " ES${ES_REVISION}.x"
80 cp -a /usr/lib/ES${ES_REVISION}.0/* /usr/lib
81 cp -a /usr/bin/ES${ES_REVISION}.0/* /usr/bin
82 echo "${ES_REVISION}" > /etc/powervr-esrev
83 fi
85 if ! /usr/bin/pvrsrvctl --start --no-module; then return; fi
86 }
88 case $CPUTYPE in
89 "OMAP3530")
90 sgxprepare
92 devmem2 0x48004B48 w 0x2 > /dev/null
93 devmem2 0x48004B10 w 0x1 > /dev/null
94 devmem2 0x48004B00 w 0x2 > /dev/null
96 ES_REVISION="$(devmem2 0x50000014 | sed -e s:0x00010205:5: -e s:0x00010201:3: -e s:0x00010003:2: | tail -n1 | awk -F': ' '{print $2}')"
98 sgxfinish
99 ;;
100 "TI33XX")
101 sgxprepare
103 devmem2 0x44e01104 w 0x0 > /dev/null
104 devmem2 0x44e00904 w 0x2 > /dev/null
106 ES_REVISION="$(devmem2 0x56000014 | sed -e s:0x00010205:8: | tail -n1 | awk -F': ' '{print $2}')"
108 sgxfinish
109 ;;
110 "TI816x")
111 sgxprepare
113 devmem2 0x48180F04 w 0x0 > /dev/null
114 devmem2 0x48180900 w 0x2 > /dev/null
115 devmem2 0x48180920 w 0x2 > /dev/null
117 ES_REVISION="$(devmem2 0x56000014 | sed -e s:0x00010205:6: -e s:0x00010201:3: -e s:0x00010003:2: | tail -n1 | awk -F': ' '{print $2}')"
119 sgxfinish
120 ;;
121 *)
122 echo No SGX hardware, not starting PVR
123 ;;
124 esac