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Diffstat (limited to 'loader2/hardware.c')
| -rw-r--r-- | loader2/hardware.c | 189 |
1 files changed, 189 insertions, 0 deletions
diff --git a/loader2/hardware.c b/loader2/hardware.c new file mode 100644 index 000000000..ec694d1dd --- /dev/null +++ b/loader2/hardware.c @@ -0,0 +1,189 @@ +/* + * hardware.c - various hardware probing functionality + * + * Erik Troan <ewt@redhat.com> + * Matt Wilson <msw@redhat.com> + * Michael Fulbright <msf@redhat.com> + * Jeremy Katz <katzj@redhat.com> + * + * Copyright 1997 - 2002 Red Hat, Inc. + * + * This software may be freely redistributed under the terms of the GNU + * General Public License. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include <fcntl.h> +#include <string.h> +#include <stdlib.h> +#include <unistd.h> + +#include "loader.h" +#include "hardware.h" +#include "log.h" + +/* JKFIXME: this is the same hack as in loader.c for second stage modules */ +extern struct moduleBallLocation * secondStageModuleLocation; + +static int detectHardware(moduleInfoSet modInfo, + char *** modules, int flags) { + struct device ** devices, ** device; + char ** modList; + int numMods; + char *driver; + + logMessage("probing buses"); + + devices = probeDevices(CLASS_UNSPEC, + BUS_PCI | BUS_SBUS, + PROBE_ALL); + + logMessage("finished bus probing"); + + if (devices == NULL) { + *modules = NULL; + return LOADER_OK; + } + + numMods = 0; + for (device = devices; *device; device++) numMods++; + + if (!numMods) { + *modules = NULL; + return LOADER_OK; + } + + modList = malloc(sizeof(*modList) * (numMods + 1)); + numMods = 0; + + for (device = devices; *device; device++) { + driver = (*device)->driver; + if (strcmp (driver, "ignore") && strcmp (driver, "unknown") + && strcmp (driver, "disabled")) { + modList[numMods++] = strdup(driver); + } + + freeDevice (*device); + } + + modList[numMods] = NULL; + *modules = modList; + + free(devices); + + return LOADER_OK; +} + +int agpgartInitialize(moduleList modLoaded, moduleDeps modDeps, + moduleInfoSet modInfo, int flags) { + struct device ** devices, *p; + int i; + + if (FL_TESTING(flags)) return 0; + + logMessage("looking for video cards requiring agpgart module"); + + devices = probeDevices(CLASS_VIDEO, BUS_UNSPEC, PROBE_ALL); + + if (!devices) { + logMessage("no video cards found"); + return 0; + } + + /* loop thru cards, see if we need agpgart */ + for (i=0; devices[i]; i++) { + p = devices[i]; + logMessage("found video card controller %s", p->driver); + + /* HACK - need to have list of cards which match!! */ + /* JKFIXME: verify this is really still needed */ + if (!strcmp(p->driver, "Card:Intel 810") || + !strcmp(p->driver, "Card:Intel 815")) { + logMessage("found %s card requiring agpgart, loading module", + p->driver+5); + + if (mlLoadModuleSetLocation("agpgart", modLoaded, modDeps, + modInfo, flags, + secondStageModuleLocation)) { + logMessage("failed to insert agpgart module"); + return 1; + } else { + /* only load it once! */ + return 0; + } + } + } + + return 0; +} + +/* This loads the necessary parallel port drivers for printers so that + kudzu can autodetect and setup printers in post install*/ +void initializeParallelPort(moduleList modLoaded, moduleDeps modDeps, + moduleInfoSet modInfo, int flags) { + /* JKFIXME: this can be used on other arches too... */ +#if !defined (__i386__) + return; +#endif + if (FL_NOPARPORT(flags)) return; + + logMessage("loading parallel port drivers..."); + if (mlLoadModuleSetLocation("parport_pc", modLoaded, modDeps, + modInfo, flags, + secondStageModuleLocation)) { + logMessage("failed to load parport_pc module"); + return; + } +} + +int busProbe(moduleInfoSet modInfo, moduleList modLoaded, moduleDeps modDeps, + int justProbe, struct knownDevices * kd, int flags) { + int i; + char ** modList; + char modules[1024]; + + if (FL_NOPROBE(flags)) return 0; + + if (!access("/proc/bus/pci/devices", R_OK) || + !access("/proc/openprom", R_OK)) { + /* autodetect whatever we can */ + if (detectHardware(modInfo, &modList, flags)) { + logMessage("failed to scan pci bus!"); + return 0; + } else if (modList && justProbe) { + for (i = 0; modList[i]; i++) + printf("%s\n", modList[i]); + } else if (modList) { + *modules = '\0'; + + for (i = 0; modList[i]; i++) { + if (i) strcat(modules, ":"); + strcat(modules, modList[i]); + } + + mlLoadModuleSet(modules, modLoaded, modDeps, modInfo, flags); + + kdFindScsiList(kd, 0); + kdFindNetList(kd, 0); + } else + logMessage("found nothing"); + } + + return 0; +} + + +void scsiSetup(moduleList modLoaded, moduleDeps modDeps, + moduleInfoSet modInfo, int flags, + struct knownDevices * kd) { + mlLoadModuleSet("sd_mod:sr_mod", modLoaded, modDeps, modInfo, flags); +} + +void ideSetup(moduleList modLoaded, moduleDeps modDeps, + moduleInfoSet modInfo, int flags, + struct knownDevices * kd) { + mlLoadModuleSet("ide-cd", modLoaded, modDeps, modInfo, flags); +} |