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} 105 106# Print a list of labels of detected PCI ethernet hardware devices. 107get_pci_eth_labels() 108{ 109 # We need to match all PCI ethernet hardware devices against all 110 # drivers. For performance reasons, we construct a lookup table on the 111 # fly here. In order to do that, we need to give both a list of all 112 # available network drivers with PCI device IDs (part 1 of the code 113 # below) and a list of all actually present ethernet hardware devices 114 # (part 2) to an awk script (part 3). The awk script can tell the 115 # difference between the list entries based on whether there is a 116 # leading space on the line. For part 2, we grab only devices that are 117 # in PCI class 2 (network controller) subclass 0 (ethernet controller). 118 119 # Part 1: collect all network drivers with supported PCI IDs 120 (for dir in $SYSTEM_CONF_DIRS; do 121 for f in $dir/$SYSTEM_CONF_SUBDIR/*; do 122 if [ -f $f ]; then 123 printconfig $f | grep ',type net.*,pci device' 124 fi 125 done 126 done | sed 's/^service \([^,]*\),.*,pci device/ \1/g'; 127 # Part 2: grab all PCI IDs of ethernet hardware devices (class 2/0) 128 cat /proc/pci | grep '^[^ ]* 2/0/' | cut -d' ' -f3) | awk ' 129 # Part 3: first construct a PCI-ID-to-driver table based on the lines 130 # produced by part 1 (with leading space), which each contain one 131 # driver name followed by one or more PCI IDs; then, go through all 132 # the ethernet hardware devices found in part 2 (no leading space) and 133 # if if there is a hit in the table, print the driver label to use. 134 /^ / { for (i=2;i<=NF;i++) drivers[$(i)]=$1 } 135 /^[^ ]/ { 136 # There is a bit of a discrepancy between output formats of 137 # /proc/pci and printconfig: the former uses 138 # "vid:did:sub_vid:sub_did" whereas the latter uses 139 # "vid:did/sub_vid:sub_did". No problem; in the common case 140 # (= no sub IDs used) we need to split the PCI ID anyway. 141 if (split($1,id,":") >= 4) { 142 # Try a full "vid:did:sub_vid:sub_did" match. 143 name=drivers[id[1]":"id[2]"/"id[3]":"id[4]] 144 } 145 # No sub IDs or no match found? Try a "vid:did" match. 146 if (!name) name=drivers[id[1]":"id[2]] 147 # If found, print the resulting label (<name>_<instance>) 148 if (name) { 149 print name"_"(instance[name]+0) 150 instance[name]++ 151 } 152 } 153 ' 154} 155 156# Print a list of labels of ethernet hardware devices that have been detected 157# to be present on the system. Each label has the format '<driver>_<instance>' 158# where <driver> is the file name of the driver (in /service) and <instance> is 159# a zero-based, per-driver instance number of the device. 160get_eth_labels() { 161 # For now, do autodetection only on platforms with (x86) PCI support. 162 # For (x86) ISA drivers, a custom network setting script is required; 163 # see below. For ARM platforms, the driver (if any) is started based 164 # on the board; there is no device autodetection. 165 if [ -f /proc/pci ]; then 166 get_pci_eth_labels 167 fi 168 169 # Add any network drivers manually configured in /usr/etc/rc.local by 170 # the netconf(8) utility. 171 if [ -n "$netdriver" ]; then 172 echo "${netdriver}_0" 173 fi 174} 175 176# Detect expansion boards on the BeagleBone and load the proper drivers. 177capemgr() { 178 179 # Probe each possible cape EEPROM slave address for a BeagleBone cape. 180 for slave_addr in 54 55 56 57 181 do 182 183 # See if there is a readable EEPROM with address ${slave_addr}. 184 eepromread -f /dev/i2c-3 -a 0x${slave_addr} > /dev/null 2>&1 185 RESULT=$? 186 if [ $RESULT -eq 0 ] 187 then 188 189 # Found an alive EEPROM. Try reading the cape name. 190 CAPE=`eepromread -i -f /dev/i2c-3 -a 0x${slave_addr} | \ 191 sed -n 's/^PART_NUMBER : \(.*\)$/\1/p' | \ 192 sed -e 's/\.*$//g'` # Strip trailing periods. 193 194 # Look for a cape specific RC script. 195 if [ -x /etc/rc.capes/${CAPE} ] 196 then 197 198 # CAT24C256 EEPROM -- all capes have this chip. 199 test -e /dev/eepromb3s${slave_addr} || \ 200 (cd /dev && MAKEDEV eepromb3s${slave_addr}) 201 up cat24c256 -dev /dev/eepromb3s${slave_addr} \ 202 -label cat24c256.3.${slave_addr} \ 203 -args "bus=3 address=0x${slave_addr}" 204 205 # Load the drivers for the cape and do any other configuration. 206 . "/etc/rc.capes/${CAPE}" 207 208 else 209 210 echo "" 211 echo "** UNSUPPORTED CAPE: ${CAPE}" 212 echo "" 213 214 fi 215 fi 216 done 217} 218 219case $action in 220start) 221 # Select console font. 222 test -f /etc/font && loadfont /etc/font </dev/console 223 224 # Cleanup. 225 rm -rf /tmp/* /usr/run/* /usr/spool/lpd/* /usr/spool/locks/* 226 227 # Start servers and drivers set at the boot monitor. 228 echo -n "Starting services:" 229 up -n random -dev /dev/random -period 3HZ 230 231 # load random number generator 232 if [ -f $RANDOM_FILE ] 233 then 234 cat < $RANDOM_FILE >/dev/random 235 # overwrite $RANDOM_FILE. We don't want to use this data again 236 dd if=/dev/random of=$RANDOM_FILE bs=1024 count=1 2> /dev/null 237 else 238 # We couldn't find the old state to restart from, so use a binary 239 # file and the current date instead, even if this is less than ideal. 240 cat /bin/sh >> /dev/urandom 241 date >> /dev/urandom 242 fi 243 244 # start network driver instances for all detected ethernet devices 245 for label in $(get_eth_labels); do 246 driver=$(echo $label | sed 's/\(.*\)_.*/\1/') 247 instance=$(echo $label | sed 's/.*_//') 248 eval arg=\$${driver}_arg 249 if [ ! -z "$arg" ]; then arg=" $arg"; fi 250 arg="-args \"instance=$instance$arg\"" 251 eval up $driver -label $label $arg -period 5HZ 252 done 253 254 # pty needs to know the "tty" group ID 255 up pty -dev /dev/ptmx -args "gid=`stat -f '%g' /dev/ptmx`" 256 257 up uds 258 259 up -n ipc 260 261 up log -dev /dev/klog 262 263 if [ $ARCH = i386 ] 264 then 265 up -n printer -dev /dev/lp -period 10HZ 266 # start VirtualBox time sync driver if the device is there 267 if grep '^[^ ]* [^ ]* 80EE:CAFE[^ ]* ' /proc/pci >/dev/null; then 268 up -n vbox -period 10HZ 269 fi 270 fi 271 272 echo . 273 274 echo -n "Starting daemons:" 275 daemonize update 276 277 # Ugly error message when starting cron from CD. 278 # (and cron unnecessary then so..) 279 if [ ! -f /CD ] 280 then daemonize cron 281 else mkdir /tmp/log 282 rm -f /var/log || true 283 ln -s /tmp/log /var/log || true 284 . /etc/rc.cd 285 fi 286 287 echo . 288 289 # i2c only supported on ARM at the moment 290 if [ $ARCH = earm ] 291 then 292 echo -n "Starting i2c subsystem: " 293 for bus in 1 2 3 294 do 295 test -e /dev/i2c-${bus} || (cd /dev && MAKEDEV i2c-${bus}) 296 up i2c -dev /dev/i2c-${bus} -label i2c.${bus} \ 297 -args instance=${bus} 298 done 299 echo . 300 301 BOARD_NAME=`sysenv board` 302 case "${BOARD_NAME}" in 303 304 ARM-ARMV7-TI-BB-WHITE) 305 echo "Running on a BeagleBone" 306 echo -n "Starting i2c device drivers: " 307 308 # start EEPROM driver for reading board info 309 test -e /dev/eepromb1s50 || \ 310 (cd /dev && MAKEDEV eepromb1s50) 311 up cat24c256 -dev /dev/eepromb1s50 \ 312 -label cat24c256.1.50 \ 313 -args 'bus=1 address=0x50' 314 315 # Start TPS65217 driver for power management. 316 up tps65217 -label tps65217.1.24 \ 317 -args 'bus=1 address=0x24' 318 319 # Start ethernet driver. 320 up lan8710a -label lan8710a_0 -args 'instance=0' 321 322 # check for the presence of a display 323 eepromread -f /dev/i2c-2 -n > /dev/null 2>&1 324 RESULT=$? 325 if [ $RESULT -eq 0 ] 326 then 327 # start eeprom driver for reading EDID. 328 test -e /dev/eepromb2s50 || \ 329 (cd /dev && MAKEDEV eepromb2s50) 330 up cat24c256 -dev /dev/eepromb2s50 \ 331 -label cat24c256.2.50 \ 332 -args 'bus=2 address=0x50' 333 334 # start frame buffer 335 #up fb -dev /dev/fb0 -args edid.0=cat24c256.2.50 336 # fb hasn't been ported to AM335X yet. 337 fi 338 339 if [ -e /service/usbd ] 340 then 341 echo "Starting USBD" 342 up usbd 343 fi 344 # Detect expansion boards and start drivers. 345 capemgr 346 347 ;; 348 349 ARM-ARMV7-TI-BB-BLACK) 350 echo "Running on a BeagleBone Black" 351 echo -n "Starting i2c device drivers: " 352 353 # start EEPROM driver for reading board info 354 test -e /dev/eepromb1s50 || \ 355 (cd /dev && MAKEDEV eepromb1s50) 356 up cat24c256 -dev /dev/eepromb1s50 \ 357 -label cat24c256.1.50 \ 358 -args 'bus=1 address=0x50' 359 360 # Start TPS65217 driver for power management. 361 up tps65217 -label tps65217.1.24 \ 362 -args 'bus=1 address=0x24' 363 364 # Start TDA19988 driver for reading EDID. 365 up tda19988 -label tda19988.1.3470 -args \ 366 'cec_bus=1 cec_address=0x34 hdmi_bus=1 hdmi_address=0x70' 367 368 # Start ethernet driver. 369 up lan8710a -label lan8710a_0 -args 'instance=0' 370 371 # start frame buffer 372 #up fb -dev /dev/fb0 -args edid.0=tda19988.1.3470 373 # fb hasn't been ported to AM335X yet. 374 375 if [ -e /service/usbd ] 376 then 377 echo "Starting USBD" 378 up usbd 379 fi 380 # Detect expansion boards and start drivers. 381 capemgr 382 383 ;; 384 385 ARM-ARMV7-TI-BBXM-GENERIC) 386 echo "Running on a BeagleBoard-xM" 387 echo -n "Starting i2c device drivers: " 388 389 # Start TPS65950 driver for power management. 390 up tps65950 -label tps65950.1.48 \ 391 -args 'bus=1 address=0x48' 392 393 # Set the system time to the time in the TPS65950's RTC 394 readclock 395 396 # check for the presence of a display 397 eepromread -f /dev/i2c-3 -n > /dev/null 2>&1 398 RESULT=$? 399 if [ $RESULT -eq 0 ] 400 then 401 # start eeprom driver for reading edid 402 test -e /dev/eepromb3s50 || \ 403 (cd /dev && MAKEDEV eepromb3s50) 404 up cat24c256 -dev /dev/eepromb3s50 \ 405 -label cat24c256.3.50 \ 406 -args 'bus=3 address=0x50' 407 408 # start frame buffer 409 up fb -dev /dev/fb0 -args edid.0=cat24c256.3.50 410 fi 411 412 ;; 413 esac 414 415 echo . 416 fi 417 418 # Load the stored hostname into the sysctl database. 419 test -r /etc/hostname.file && hostname $(cat /etc/hostname.file) 420 421 # Recover files being edited when the system crashed. 422 test -f /usr/bin/elvprsv && elvprsv /usr/tmp/elv* 423 424 # Run the daily cleanup on systems that are not on at night. 425 test -f /usr/etc/daily && sh /usr/etc/daily boot & 426;; 427stop) 428 # Save random data, if /usr is mounted rw. 429 if grep ' \/usr .*rw.*' /etc/mtab >/dev/null 430 then 431 if dd if=/dev/random of=$RANDOM_FILE.new bs=1024 count=1 2>/dev/null 432 then 433 mv $RANDOM_FILE.new $RANDOM_FILE 434 else 435 echo 'Failed to save random data.' 436 fi 437 fi 438esac 439