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Created a bus/device API that allows for the ROM prefix to specify an

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initial device, and will also allow for e.g. a device menu to be presented
to the user.
This commit is contained in:
Michael Brown
2005-04-21 18:18:29 +00:00
parent 905ca1f21d
commit 98ff29345e
16 changed files with 726 additions and 557 deletions
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44
src/core/main.c
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@@ -143,12 +143,6 @@ static int exit_status;
static int initialized;
/* Global instance of the current boot device */
DEV_BUS(struct bus_device, dev_bus);
struct dev dev = {
.bus = &dev_bus,
};
/**************************************************************************
* initialise() - perform any C-level initialisation
*
@@ -169,6 +163,7 @@ void initialise ( void ) {
MAIN - Kick off routine
**************************************************************************/
int main ( void ) {
int skip = 0;
/* Print out configuration */
print_config();
@@ -181,36 +176,34 @@ int main ( void ) {
for ( ; ; disable ( &dev ), call_reset_fns() ) {
/* Get next boot device */
if ( ! find_boot_device ( &dev ) ) {
if ( ! find_any_with_driver ( &dev, skip ) ) {
/* Reached end of device list */
printf ( "No more boot devices\n" );
skip = 0;
sleep ( 2 );
continue;
}
/* Skip this device the next time we encounter it */
skip = 1;
/* Print out what we're doing */
printf ( "Booting from %s %s at %s "
"using the %s driver\n",
dev.bus_driver->name ( &dev.bus_dev ),
dev.type_driver->name,
dev.bus_driver->describe ( &dev.bus_dev ),
dev.device_driver->name );
/* Probe boot device */
if ( ! probe ( &dev ) ) {
/* Device found on bus, but probe failed */
printf ( "Probe failed on %s, trying next device\n",
dev.name );
printf ( "...probe failed on %s\n" );
continue;
}
/* Print device info */
print_info ( &dev );
/* Load configuration (e.g. DHCP) */
if ( ! load_configuration ( &dev ) ) {
/* DHCP failed */
printf ( "Could not configure device %s\n", dev.name );
continue;
}
/* Load image */
if ( ! load ( &dev ) )
/* Load failed */
printf ( "Could not boot from device %s\n", dev.name );
continue;
printf ( "%s: %s\n", dev.bus_driver->name ( &dev.bus_dev ),
dev.type_driver->describe ( dev.type_dev ) );
}
/* Call registered per-object exit functions */
@@ -463,8 +456,7 @@ void cleanup(void)
nfs_umountall(ARP_SERVER);
#endif
/* Stop receiving packets */
eth_disable();
disk_disable();
disable ( &dev );
initialized = 0;
}