1# /usr/etc/rc - continued system initialization. 2 3RANDOM_FILE=/usr/adm/random.dat 4LOCAL_FILE=/usr/etc/rc.local 5 6ARCH="`sysenv arch`" 7 8if [ ! "$ARCH" ] 9then # Older kernels do not provide an arch sysenv variable. 10 # We assume we are on x86 then, as existing systems with 11 # kernel and userland (i.e. this script) unsynchronized 12 # will be x86. 13 ARCH=i386 14fi 15 16# Get $SERVICES_DIRS 17. /etc/rc.conf 18 19# Directories to find services in 20if [ ! "$SERVICES_DIRS" ] 21then SERVICES_DIRS=/service 22fi 23 24# Booting from cd? 25bootcd="`/bin/sysenv bootcd`" 26 27case "$#:$1" in 281:start|1:stop) 29 action=$1 30 ;; 31*) echo >&2 "Usage: $0 [start|stop]" 32 exit 1 33esac 34 35if [ -f "$LOCAL_FILE" ] 36then . "$LOCAL_FILE" $1 37fi 38 39disabled() 40{ 41 ifs="$IFS"; IFS=, 42 for skip in `sysenv disable` 43 do 44 if [ "$skip" = "$1" ] 45 then 46 IFS="$ifs"; unset ifs 47 return 0 48 fi 49 done 50 IFS="$ifs"; unset ifs 51 return 1 52} 53 54daemonize() 55{ 56 # Function to start a daemon, if it exists. 57 local IFS=':' 58 local name="$1" 59 test "$1" = tcpd && name="$2" 60 61 for dir in $PATH 62 do 63 if [ -f "$dir/$1" ] 64 then 65 66 # check if this service is disabled at the boot monitor. 67 if disabled $name; then return; fi 68 69 echo -n " $name" 70 "$@" & 71 return 72 fi 73 done 74} 75 76up() 77{ 78 # Function to dynamically start a system service 79 opt="" 80 prefix=$(expr "$1 " : '\(-\)') 81 if [ "$prefix" = "-" ]; 82 then 83 opt=$1 84 shift 85 fi 86 service=$1 87 shift 88 89 # First check if this service is disabled at the boot monitor. 90 if disabled $service; then return; fi 91 92 # Service is not disabled. Try to bring it up. 93 found="" 94 for dir in $SERVICES_DIRS 95 do bin=$dir/$service 96 if [ -x $bin -a -z "$found" ] 97 then minix-service $opt up $bin "$@" 98 echo -n " $service" 99 found=yes 100 fi 101 done 102 if [ -z "$found" ] 103 then echo " ($service not found in $SERVICES_DIRS)" 104 fi 105} 106 107get_eth_labels() { 108 # Nothing yet. 109} 110 111# Detect expansion boards on the BeagleBone and load the proper drivers. 112capemgr() { 113 114 # Probe each possible cape EEPROM slave address for a BeagleBone cape. 115 for slave_addr in 54 55 56 57 116 do 117 118 # See if there is a readable EEPROM with address ${slave_addr}. 119 eepromread -f /dev/i2c-3 -a 0x${slave_addr} > /dev/null 2>&1 120 RESULT=$? 121 if [ $RESULT -eq 0 ] 122 then 123 124 # Found an alive EEPROM. Try reading the cape name. 125 CAPE=`eepromread -i -f /dev/i2c-3 -a 0x${slave_addr} | \ 126 sed -n 's/^PART_NUMBER : \(.*\)$/\1/p' | \ 127 sed -e 's/\.*$//g'` # Strip trailing periods. 128 129 # Look for a cape specific RC script. 130 if [ -x /etc/rc.capes/${CAPE} ] 131 then 132 133 # CAT24C256 EEPROM -- all capes have this chip. 134 test -e /dev/eepromb3s${slave_addr} || \ 135 (cd /dev && MAKEDEV eepromb3s${slave_addr}) 136 up cat24c256 -dev /dev/eepromb3s${slave_addr} \ 137 -label cat24c256.3.${slave_addr} \ 138 -args "bus=3 address=0x${slave_addr}" 139 140 # Load the drivers for the cape and do any other configuration. 141 . "/etc/rc.capes/${CAPE}" 142 143 else 144 145 echo "" 146 echo "** UNSUPPORTED CAPE: ${CAPE}" 147 echo "" 148 149 fi 150 fi 151 done 152} 153 154case $action in 155start) 156 # Select console font. 157 test -f /etc/font && loadfont /etc/font </dev/console 158 159 # Cleanup. 160 rm -rf /tmp/* /usr/run/* /usr/spool/lpd/* /usr/spool/locks/* 161 162 # Start servers and drivers set at the boot monitor. 163 echo -n "Starting services:" 164 up -n random -dev /dev/random -period 3HZ 165 166 # load random number generator 167 if [ -f $RANDOM_FILE ] 168 then 169 cat < $RANDOM_FILE >/dev/random 170 # overwrite $RANDOM_FILE. We don't want to use this data again 171 dd if=/dev/random of=$RANDOM_FILE bs=1024 count=1 2> /dev/null 172 else 173 # We couldn't find the old state to restart from, so use a binary 174 # file and the current date instead, even if this is less than ideal. 175 cat /bin/sh >> /dev/urandom 176 date >> /dev/urandom 177 fi 178 179 # start network driver instances for all configured ethernet devices 180 for label in $(get_eth_labels); do 181 driver=$(echo $label | sed 's/\(.*\)_.*/\1/') 182 instance=$(echo $label | sed 's/.*_//') 183 eval arg=\$${driver}_arg 184 if [ ! -z "$arg" ]; then arg=" $arg"; fi 185 arg="-args \"instance=$instance$arg\"" 186 eval up $driver -label $label $arg -period 5HZ 187 done 188 189 # pty needs to know the "tty" group ID 190 up pty -dev /dev/ptmx -args "gid=`stat -f '%g' /dev/ptmx`" 191 192 up uds 193 194 up -n ipc 195 196 up log -dev /dev/klog 197 198 if [ $ARCH = i386 ] 199 then 200 up -n printer -dev /dev/lp -period 10HZ 201 # start VirtualBox time sync driver if the device is there 202 if grep '^[^ ]* [^ ]* 80EE:CAFE[^ ]* ' /proc/pci >/dev/null; then 203 up -n vbox -period 10HZ 204 fi 205 fi 206 207 echo . 208 209 echo -n "Starting daemons:" 210 daemonize update 211 212 # Ugly error message when starting cron from CD. 213 # (and cron unnecessary then so..) 214 if [ ! -f /CD ] 215 then daemonize cron 216 else mkdir /tmp/log 217 rm -f /var/log || true 218 ln -s /tmp/log /var/log || true 219 . /etc/rc.cd 220 fi 221 222 echo . 223 224 # i2c only supported on ARM at the moment 225 if [ $ARCH = earm ] 226 then 227 echo -n "Starting i2c subsystem: " 228 for bus in 1 2 3 229 do 230 test -e /dev/i2c-${bus} || (cd /dev && MAKEDEV i2c-${bus}) 231 up i2c -dev /dev/i2c-${bus} -label i2c.${bus} \ 232 -args instance=${bus} 233 done 234 echo . 235 236 BOARD_NAME=`sysenv board` 237 case "${BOARD_NAME}" in 238 239 ARM-ARMV7-TI-BB-WHITE) 240 echo "Running on a BeagleBone" 241 echo -n "Starting i2c device drivers: " 242 243 # start EEPROM driver for reading board info 244 test -e /dev/eepromb1s50 || \ 245 (cd /dev && MAKEDEV eepromb1s50) 246 up cat24c256 -dev /dev/eepromb1s50 \ 247 -label cat24c256.1.50 \ 248 -args 'bus=1 address=0x50' 249 250 # Start TPS65217 driver for power management. 251 up tps65217 -label tps65217.1.24 \ 252 -args 'bus=1 address=0x24' 253 254 # check for the presence of a display 255 eepromread -f /dev/i2c-2 -n > /dev/null 2>&1 256 RESULT=$? 257 if [ $RESULT -eq 0 ] 258 then 259 # start eeprom driver for reading EDID. 260 test -e /dev/eepromb2s50 || \ 261 (cd /dev && MAKEDEV eepromb2s50) 262 up cat24c256 -dev /dev/eepromb2s50 \ 263 -label cat24c256.2.50 \ 264 -args 'bus=2 address=0x50' 265 266 # start frame buffer 267 #up fb -dev /dev/fb0 -args edid.0=cat24c256.2.50 268 # fb hasn't been ported to AM335X yet. 269 fi 270 271 if [ -e /service/usbd ] 272 then 273 echo "Starting USBD" 274 up usbd 275 fi 276 # Detect expansion boards and start drivers. 277 capemgr 278 279 ;; 280 281 ARM-ARMV7-TI-BB-BLACK) 282 echo "Running on a BeagleBone Black" 283 echo -n "Starting i2c device drivers: " 284 285 # start EEPROM driver for reading board info 286 test -e /dev/eepromb1s50 || \ 287 (cd /dev && MAKEDEV eepromb1s50) 288 up cat24c256 -dev /dev/eepromb1s50 \ 289 -label cat24c256.1.50 \ 290 -args 'bus=1 address=0x50' 291 292 # Start TPS65217 driver for power management. 293 up tps65217 -label tps65217.1.24 \ 294 -args 'bus=1 address=0x24' 295 296 # Start TDA19988 driver for reading EDID. 297 up tda19988 -label tda19988.1.3470 -args \ 298 'cec_bus=1 cec_address=0x34 hdmi_bus=1 hdmi_address=0x70' 299 300 # start frame buffer 301 #up fb -dev /dev/fb0 -args edid.0=tda19988.1.3470 302 # fb hasn't been ported to AM335X yet. 303 304 if [ -e /service/usbd ] 305 then 306 echo "Starting USBD" 307 up usbd 308 fi 309 # Detect expansion boards and start drivers. 310 capemgr 311 312 ;; 313 314 ARM-ARMV7-TI-BBXM-GENERIC) 315 echo "Running on a BeagleBoard-xM" 316 echo -n "Starting i2c device drivers: " 317 318 # Start TPS65950 driver for power management. 319 up tps65950 -label tps65950.1.48 \ 320 -args 'bus=1 address=0x48' 321 322 # Set the system time to the time in the TPS65950's RTC 323 readclock 324 325 # check for the presence of a display 326 eepromread -f /dev/i2c-3 -n > /dev/null 2>&1 327 RESULT=$? 328 if [ $RESULT -eq 0 ] 329 then 330 # start eeprom driver for reading edid 331 test -e /dev/eepromb3s50 || \ 332 (cd /dev && MAKEDEV eepromb3s50) 333 up cat24c256 -dev /dev/eepromb3s50 \ 334 -label cat24c256.3.50 \ 335 -args 'bus=3 address=0x50' 336 337 # start frame buffer 338 up fb -dev /dev/fb0 -args edid.0=cat24c256.3.50 339 fi 340 341 ;; 342 esac 343 344 echo . 345 fi 346 347 # Load the stored hostname into the sysctl database. 348 test -r /etc/hostname.file && hostname $(cat /etc/hostname.file) 349 350 # Recover files being edited when the system crashed. 351 test -f /usr/bin/elvprsv && elvprsv /usr/tmp/elv* 352 353 # Run the daily cleanup on systems that are not on at night. 354 test -f /usr/etc/daily && sh /usr/etc/daily boot & 355;; 356stop) 357 # Save random data, if /usr is mounted rw. 358 if grep ' \/usr .*rw.*' /etc/mtab >/dev/null 359 then 360 if dd if=/dev/random of=$RANDOM_FILE.new bs=1024 count=1 2>/dev/null 361 then 362 mv $RANDOM_FILE.new $RANDOM_FILE 363 else 364 echo 'Failed to save random data.' 365 fi 366 fi 367esac 368