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