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/*
* 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 <kudzu/kudzu.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include "loader.h"
#include "hardware.h"
#include "pcmcia.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 |
((has_pcmcia() >= 0) ? BUS_PCMCIA : 0),
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;
/* this is kind of icky and verbose. there are better and more
* general ways to do it but this is simple and obvious */
if (FL_NOPCMCIA(flags) && ((*device)->class == CLASS_SOCKET)) {
logMessage("ignoring pcmcia device %s (%s)", (*device)->desc,
(*device)->driver);
} else if (FL_NOIEEE1394(flags) && ((*device)->class == CLASS_FIREWIRE)) {
logMessage("ignoring firewire device %s (%s)", (*device)->desc,
(*device)->driver);
} else if (FL_NOUSB(flags) && ((*device)->class == CLASS_USB)) {
logMessage("ignoring usb device %s (%s)", (*device)->desc,
(*device)->driver);
} else 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;
}
int scsiTapeInitialize(moduleList modLoaded, moduleDeps modDeps,
moduleInfoSet modInfo, int flags) {
struct device ** devices;
if (FL_TESTING(flags)) return 0;
logMessage("looking for scsi tape devices");
devices = probeDevices(CLASS_TAPE, BUS_SCSI, PROBE_ALL);
if (!devices) {
logMessage("no scsi tape devices found");
return 0;
}
logMessage("scsi tape device(s) found, loading st.o");
if (mlLoadModuleSetLocation("st", modLoaded, modDeps,
modInfo, flags,
secondStageModuleLocation)) {
logMessage("failed to insert st module");
return 1;
}
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;
}
}
void updateKnownDevices(struct knownDevices * kd) {
kdFindScsiList(kd, 0);
kdFindNetList(kd, 0);
}
int busProbe(moduleInfoSet modInfo, moduleList modLoaded, moduleDeps modDeps,
int justProbe, struct knownDevices * kd, int flags) {
int i;
char ** modList;
char modules[1024];
/* we always want to try to find out about pcmcia controllers even
* if using noprobe */
initializePcmciaController(modLoaded, modDeps, modInfo, flags);
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);
startPcmciaDevices(modLoaded, flags);
updateKnownDevices(kd);
} 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);
}
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