freebsd-skq/usr.sbin/sysinstall/devices.c

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/*
* The new sysinstall program.
*
* This is probably the last program in the `sysinstall' line - the next
* generation being essentially a complete rewrite.
*
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* $FreeBSD$
*
* Copyright (c) 1995
* Jordan Hubbard. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer,
* verbatim and that no modifications are made prior to this
* point in the file.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY JORDAN HUBBARD ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL JORDAN HUBBARD OR HIS PETS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, LIFE OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
#include "sysinstall.h"
#include <sys/fcntl.h>
#include <sys/param.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
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#include <sys/errno.h>
#include <sys/time.h>
#include <net/if.h>
#include <net/if_var.h>
#include <net/if_dl.h>
#include <netinet/in.h>
#include <netinet/in_var.h>
#include <arpa/inet.h>
#include <ctype.h>
/* how much to bias minor number for a given /dev/<ct#><un#>s<s#> slice */
#define SLICE_DELTA (0x10000)
static Device *Devices[DEV_MAX];
static int numDevs;
static struct _devname {
DeviceType type;
char *name;
char *description;
int major, minor, delta, max;
} device_names[] = {
{ DEVICE_TYPE_CDROM, "cd%dc", "SCSI CDROM drive", 15, 2, 8, 4 },
{ DEVICE_TYPE_CDROM, "mcd%da", "Mitsumi (old model) CDROM drive", 29, 0, 8, 4 },
{ DEVICE_TYPE_CDROM, "scd%da", "Sony CDROM drive - CDU31/33A type", 45, 0, 8, 4 },
#ifdef notdef
{ DEVICE_TYPE_CDROM, "matcd%da", "Matsushita CDROM ('sound blaster' type)", 46, 0, 8, 4 },
#endif
{ DEVICE_TYPE_CDROM, "acd%dc", "ATAPI/IDE CDROM", 117, 0, 8, 4 },
{ DEVICE_TYPE_TAPE, "rsa%d", "SCSI tape drive", 14, 0, 16, 4 },
{ DEVICE_TYPE_TAPE, "rwt%d", "Wangtek tape drive", 10, 0, 1, 4 },
{ DEVICE_TYPE_DISK, "da%d", "SCSI disk device", 13, 65538, 8, 16 },
{ DEVICE_TYPE_DISK, "ad%d", "ATA/IDE disk device", 116, 65538, 8, 16 },
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{ DEVICE_TYPE_DISK, "ar%d", "ATA/IDE RAID device", 157, 65538, 8, 16 },
{ DEVICE_TYPE_DISK, "fla%d", "M-Systems DiskOnChip Flash devicee", 102, 65538, 8, 16 },
{ DEVICE_TYPE_DISK, "afd%d", "ATAPI/IDE floppy device", 118, 65538, 8, 4 },
{ DEVICE_TYPE_DISK, "mlxd%d", "Mylex RAID disk", 131, 65538, 8, 4 },
{ DEVICE_TYPE_DISK, "amrd%d", "AMI MegaRAID drive", 133, 65538, 8, 4 },
{ DEVICE_TYPE_DISK, "idad%d", "Compaq RAID array", 109, 65538, 8, 4 },
{ DEVICE_TYPE_DISK, "twed%d", "3ware ATA RAID array", 147, 65538, 8, 4 },
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{ DEVICE_TYPE_DISK, "aacd%d", "Adaptec FSA RAID array", 151, 65538, 8, 4 },
{ DEVICE_TYPE_FLOPPY, "fd%d", "floppy drive unit A", 9, 0, 64, 4 },
{ DEVICE_TYPE_NETWORK, "an", "Aironet 4500/4800 802.11 wireless adapter" },
This commit adds device driver support for the ADMtek AN986 Pegasus USB ethernet chip. Adapters that use this chip include the LinkSys USB100TX. There are a few others, but I'm not certain of their availability in the U.S. I used an ADMtek eval board for development. Note that while the ADMtek chip is a 100Mbps device, you can't really get 100Mbps speeds over USB. Regardless, this driver uses miibus to allow speed and duplex mode selection as well as autonegotiation. Building and kldloading the driver as a module is also supported. Note that in order to make this driver work, I had to make what some may consider an ugly hack to sys/dev/usb/usbdi.c. The usbd_transfer() function will use tsleep() for synchronous transfers that don't complete right away. This is a problem since there are times when we need to do sync transfers from an interrupt context (i.e. when reading registers from the MAC via the control endpoint), where tsleep() us a no-no. My hack allows the driver to have the code poll for transfer completion subject to the xfer->timeout timeout rather that calling tsleep(). This hack is controlled by a quirk entry and is only enabled for the ADMtek device. Now, I'm sure there are a few of you out there ready to jump on me and suggest some other approach that doesn't involve a busy wait. The only solution that might work is to handle the interrupts in a kernel thread, where you may have something resembling a process context that makes it okay to tsleep(). This is lovely, except we don't have any mechanism like that now, and I'm not about to implement such a thing myself since it's beyond the scope of driver development. (Translation: I'll be damned if I know how to do it.) If FreeBSD ever aquires such a mechanism, I'll be glad to revisit the driver to take advantage of it. In the meantime, I settled for what I perceived to be the solution that involved the least amount of code changes. In general, the hit is pretty light. Also note that my only USB test box has a UHCI controller: I haven't I don't have a machine with an OHCI controller available. Highlights: - Updated usb_quirks.* to add UQ_NO_TSLEEP quirk for ADMtek part. - Updated usbdevs and regenerated generated files - Updated HARDWARE.TXT and RELNOTES.TXT files - Updated sysinstall/device.c and userconfig.c - Updated kernel configs -- device aue0 is commented out by default - Updated /sys/conf/files - Added new kld module directory
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{ DEVICE_TYPE_NETWORK, "aue", "ADMtek USB ethernet adapter" },
{ DEVICE_TYPE_NETWORK, "bge", "Broadcom BCM570x PCI gigabit ethernet card" },
{ DEVICE_TYPE_NETWORK, "cue", "CATC USB ethernet adapter" },
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{ DEVICE_TYPE_NETWORK, "fpa", "DEC DEFPA PCI FDDI card" },
{ DEVICE_TYPE_NETWORK, "sr", "SDL T1/E1 sync serial PCI card" },
{ DEVICE_TYPE_NETWORK, "cc3i", "SDL HSSI sync serial PCI card" },
{ DEVICE_TYPE_NETWORK, "en", "Efficient Networks ATM PCI card" },
{ DEVICE_TYPE_NETWORK, "dc", "DEC/Intel 21143 (and clones) PCI fast ethernet card" },
{ DEVICE_TYPE_NETWORK, "de", "DEC DE435 PCI NIC or other DC21040-AA based card" },
{ DEVICE_TYPE_NETWORK, "fxp", "Intel EtherExpress Pro/100B PCI Fast Ethernet card" },
{ DEVICE_TYPE_NETWORK, "ed", "Novell NE1000/2000; 3C503; NE2000-compatible PCMCIA" },
{ DEVICE_TYPE_NETWORK, "ep", "3Com 3C509 ethernet card/3C589 PCMCIA" },
{ DEVICE_TYPE_NETWORK, "el", "3Com 3C501 ethernet card" },
{ DEVICE_TYPE_NETWORK, "ex", "Intel EtherExpress Pro/10 ethernet card" },
{ DEVICE_TYPE_NETWORK, "fe", "Fujitsu MB86960A/MB86965A ethernet card" },
{ DEVICE_TYPE_NETWORK, "ie", "AT&T StarLAN 10 and EN100; 3Com 3C507; NI5210" },
{ DEVICE_TYPE_NETWORK, "ix", "Intel Etherexpress ethernet card" },
{ DEVICE_TYPE_NETWORK, "kue", "Kawasaki LSI USB ethernet adapter" },
{ DEVICE_TYPE_NETWORK, "le", "DEC EtherWorks 2 or 3 ethernet card" },
{ DEVICE_TYPE_NETWORK, "lnc", "Lance/PCnet (Isolan/Novell NE2100/NE32-VL) ethernet" },
{ DEVICE_TYPE_NETWORK, "nge", "NatSemi PCI gigabit ethernet card" },
{ DEVICE_TYPE_NETWORK, "pcn", "AMD Am79c79x PCI ethernet card" },
{ DEVICE_TYPE_NETWORK, "ray", "Raytheon Raylink 802.11 wireless adaptor" },
{ DEVICE_TYPE_NETWORK, "rl", "RealTek 8129/8139 PCI ethernet card" },
{ DEVICE_TYPE_NETWORK, "sf", "Adaptec AIC-6915 PCI ethernet card" },
{ DEVICE_TYPE_NETWORK, "sis", "SiS 900/SiS 7016 PCI ethernet card" },
#ifdef PC98
{ DEVICE_TYPE_NETWORK, "snc", "SONIC ethernet card" },
#endif
{ DEVICE_TYPE_NETWORK, "sn", "SMC/Megahertz ethernet card" },
{ DEVICE_TYPE_NETWORK, "ste", "Sundance ST201 PCI ethernet card" },
{ DEVICE_TYPE_NETWORK, "sk", "SysKonnect PCI gigabit ethernet card" },
{ DEVICE_TYPE_NETWORK, "tx", "SMC 9432TX ethernet card" },
{ DEVICE_TYPE_NETWORK, "txp", "3Com 3cR990 ethernet card" },
{ DEVICE_TYPE_NETWORK, "ti", "Alteon Networks PCI gigabit ethernet card" },
{ DEVICE_TYPE_NETWORK, "tl", "Texas Instruments ThunderLAN PCI ethernet card" },
{ DEVICE_TYPE_NETWORK, "vr", "VIA VT3043/VT86C100A Rhine PCI ethernet card" },
{ DEVICE_TYPE_NETWORK, "vx", "3COM 3c590 / 3c595 ethernet card" },
{ DEVICE_TYPE_NETWORK, "wb", "Winbond W89C840F PCI ethernet card" },
{ DEVICE_TYPE_NETWORK, "wi", "Lucent WaveLAN/IEEE 802.11 wireless adapter" },
{ DEVICE_TYPE_NETWORK, "wx", "Intel Gigabit Ethernet (82452) card" },
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{ DEVICE_TYPE_NETWORK, "xe", "Xircom/Intel EtherExpress Pro100/16 ethernet card" },
{ DEVICE_TYPE_NETWORK, "xl", "3COM 3c90x / 3c90xB PCI ethernet card" },
{ DEVICE_TYPE_NETWORK, "cuaa%d", "%s on device %s (COM%d)", 28, 128, 1, 16 },
{ DEVICE_TYPE_NETWORK, "lp", "Parallel Port IP (PLIP) peer connection" },
{ DEVICE_TYPE_NETWORK, "lo", "Loop-back (local) network interface" },
#ifdef PC98
{ DEVICE_TYPE_DISK, "wd%d", "IDE disk device", 3, 65538, 8, 16 },
{ DEVICE_TYPE_CDROM, "wcd%dc", "ATAPI IDE CDROM", 69, 2, 8, 4 },
{ DEVICE_TYPE_FLOPPY, "wfd%d", "ATAPI floppy drive unit A", 87, 0, 8, 4 },
{ DEVICE_TYPE_DISK, "wfd%d", "ATAPI floppy device", 87, 65538, 8, 4 },
#endif
{ 0 },
};
Device *
new_device(char *name)
{
Device *dev;
dev = safe_malloc(sizeof(Device));
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bzero(dev, sizeof(Device));
if (name)
SAFE_STRCPY(dev->name, name);
return dev;
}
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/* Stubs for unimplemented strategy routines */
Boolean
dummyInit(Device *dev)
{
return TRUE;
}
FILE *
dummyGet(Device *dev, char *dist, Boolean probe)
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{
return NULL;
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}
void
dummyShutdown(Device *dev)
{
return;
}
static int
deviceTry(struct _devname dev, char *try, int i)
{
int fd;
char unit[80];
mode_t m;
dev_t d;
int fail;
snprintf(unit, sizeof unit, dev.name, i);
snprintf(try, FILENAME_MAX, "/dev/%s", unit);
if (isDebug())
msgDebug("deviceTry: attempting to open %s\n", try);
fd = open(try, O_RDONLY);
if (fd >= 0) {
if (isDebug())
msgDebug("deviceTry: open of %s succeeded on first try.\n", try);
return fd;
}
m = 0640 | S_IFCHR;
d = makedev(dev.major, dev.minor + (i * dev.delta));
if (isDebug())
msgDebug("deviceTry: Making %s device for %s [%d, %d]\n", m & S_IFCHR ? "raw" : "block", try, dev.major, dev.minor + (i * dev.delta));
fail = mknod(try, m, d);
fd = open(try, O_RDONLY);
if (fd >= 0) {
if (isDebug())
msgDebug("deviceTry: open of %s succeeded on second try.\n", try);
return fd;
}
else if (!fail)
(void)unlink(try);
/* Don't try a "make-under" here since we're using a fixit floppy in this case */
snprintf(try, FILENAME_MAX, "/mnt/dev/%s", unit);
fd = open(try, O_RDONLY);
if (isDebug())
msgDebug("deviceTry: final attempt for %s returns %d\n", try, fd);
return fd;
}
/* Register a new device in the devices array */
Device *
deviceRegister(char *name, char *desc, char *devname, DeviceType type, Boolean enabled,
Boolean (*init)(Device *), FILE * (*get)(Device *, char *, Boolean),
void (*shutdown)(Device *), void *private)
{
Device *newdev = NULL;
if (numDevs == DEV_MAX)
msgFatal("Too many devices found!");
else {
newdev = new_device(name);
newdev->description = desc;
newdev->devname = devname;
newdev->type = type;
newdev->enabled = enabled;
newdev->init = init ? init : dummyInit;
newdev->get = get ? get : dummyGet;
newdev->shutdown = shutdown ? shutdown : dummyShutdown;
newdev->private = private;
Devices[numDevs] = newdev;
Devices[++numDevs] = NULL;
}
return newdev;
}
/* Reset the registered device chain */
void
deviceReset(void)
{
int i;
for (i = 0; i < numDevs; i++) {
DEVICE_SHUTDOWN(Devices[i]);
/* XXX this potentially leaks Devices[i]->private if it's being
* used to point to something dynamic, but you're not supposed
* to call this routine at such times that some open instance
* has its private ptr pointing somewhere anyway. XXX
*/
free(Devices[i]);
}
Devices[numDevs = 0] = NULL;
}
/* Get all device information for devices we have attached */
void
deviceGetAll(void)
{
int i, j, fd, s;
struct ifconf ifc;
struct ifreq *ifptr, *end;
int ifflags;
char buffer[INTERFACE_MAX * sizeof(struct ifreq)];
char **names;
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msgNotify("Probing devices, please wait (this can take a while)...");
/* First go for the network interfaces. Stolen shamelessly from ifconfig! */
ifc.ifc_len = sizeof(buffer);
ifc.ifc_buf = buffer;
s = socket(AF_INET, SOCK_DGRAM, 0);
if (s < 0)
goto skipif; /* Jump over network iface probing */
if (ioctl(s, SIOCGIFCONF, (char *) &ifc) < 0)
goto skipif; /* Jump over network iface probing */
close(s);
ifflags = ifc.ifc_req->ifr_flags;
end = (struct ifreq *) (ifc.ifc_buf + ifc.ifc_len);
for (ifptr = ifc.ifc_req; ifptr < end; ifptr++) {
char *descr;
/* If it's not a link entry, forget it */
if (ifptr->ifr_ifru.ifru_addr.sa_family != AF_LINK)
goto loopend;
/* Eliminate network devices that don't make sense */
if (!strncmp(ifptr->ifr_name, "lo", 2))
goto loopend;
/* If we have a slip device, don't register it */
if (!strncmp(ifptr->ifr_name, "sl", 2)) {
goto loopend;
}
/* And the same for ppp */
if (!strncmp(ifptr->ifr_name, "tun", 3) || !strncmp(ifptr->ifr_name, "ppp", 3)) {
goto loopend;
}
/* Try and find its description */
for (i = 0, descr = NULL; device_names[i].name; i++) {
int len = strlen(device_names[i].name);
if (!ifptr->ifr_name || !ifptr->ifr_name[0])
continue;
else if (!strncmp(ifptr->ifr_name, device_names[i].name, len)) {
descr = device_names[i].description;
break;
}
}
if (!descr)
descr = "<unknown network interface type>";
deviceRegister(ifptr->ifr_name, descr, strdup(ifptr->ifr_name), DEVICE_TYPE_NETWORK, TRUE,
mediaInitNetwork, NULL, mediaShutdownNetwork, NULL);
if (isDebug())
msgDebug("Found a network device named %s\n", ifptr->ifr_name);
close(s);
if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0)
continue;
loopend:
if (ifptr->ifr_addr.sa_len) /* I'm not sure why this is here - it's inherited */
ifptr = (struct ifreq *)((caddr_t)ifptr + ifptr->ifr_addr.sa_len - sizeof(struct sockaddr));
close(s);
}
skipif:
/* Next, try to find all the types of devices one might need
* during the second stage of the installation.
*/
for (i = 0; device_names[i].name; i++) {
for (j = 0; j < device_names[i].max; j++) {
char try[FILENAME_MAX];
switch(device_names[i].type) {
case DEVICE_TYPE_CDROM:
fd = deviceTry(device_names[i], try, j);
if (fd >= 0 || errno == EBUSY) { /* EBUSY if already mounted */
char n[BUFSIZ];
if (fd >= 0) close(fd);
snprintf(n, sizeof n, device_names[i].name, j);
deviceRegister(strdup(n), device_names[i].description, strdup(try),
DEVICE_TYPE_CDROM, TRUE, mediaInitCDROM, mediaGetCDROM,
mediaShutdownCDROM, NULL);
if (isDebug())
msgDebug("Found a CDROM device for %s\n", try);
}
break;
case DEVICE_TYPE_TAPE:
fd = deviceTry(device_names[i], try, j);
if (fd >= 0) {
char n[BUFSIZ];
close(fd);
snprintf(n, sizeof n, device_names[i].name, j);
deviceRegister(strdup(n), device_names[i].description, strdup(try),
DEVICE_TYPE_TAPE, TRUE, mediaInitTape, mediaGetTape, mediaShutdownTape, NULL);
if (isDebug())
msgDebug("Found a TAPE device for %s\n", try);
}
break;
case DEVICE_TYPE_DISK:
fd = deviceTry(device_names[i], try, j);
if (fd >= 0 && RunningAsInit) {
dev_t d;
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mode_t m;
int s, fail;
char unit[80], slice[80];
close(fd);
/* Make associated slice entries */
for (s = 1; s < 8; s++) {
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snprintf(unit, sizeof unit, device_names[i].name, j);
snprintf(slice, sizeof slice, "/dev/%ss%d", unit, s);
d = makedev(device_names[i].major, device_names[i].minor +
(j * device_names[i].delta) + (s * SLICE_DELTA));
m = 0640 | S_IFCHR;
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fail = mknod(slice, m, d);
fd = open(slice, O_RDONLY);
if (fd >= 0)
close(fd);
else if (!fail)
(void)unlink(slice);
}
}
break;
case DEVICE_TYPE_FLOPPY:
fd = deviceTry(device_names[i], try, j);
if (fd >= 0) {
char n[BUFSIZ];
close(fd);
snprintf(n, sizeof n, device_names[i].name, j);
deviceRegister(strdup(n), device_names[i].description, strdup(try),
DEVICE_TYPE_FLOPPY, TRUE, mediaInitFloppy, mediaGetFloppy,
mediaShutdownFloppy, NULL);
if (isDebug())
msgDebug("Found a floppy device for %s\n", try);
}
break;
case DEVICE_TYPE_NETWORK:
fd = deviceTry(device_names[i], try, j);
/* The only network devices that you can open this way are serial ones */
if (fd >= 0) {
char *newdesc, *cp;
close(fd);
cp = device_names[i].description;
/* Serial devices get a slip and ppp device each, if supported */
newdesc = safe_malloc(strlen(cp) + 40);
sprintf(newdesc, cp, "SLIP interface", try, j + 1);
deviceRegister("sl0", newdesc, strdup(try), DEVICE_TYPE_NETWORK, TRUE, mediaInitNetwork,
NULL, mediaShutdownNetwork, NULL);
msgDebug("Add mapping for %s to sl0\n", try);
newdesc = safe_malloc(strlen(cp) + 50);
sprintf(newdesc, cp, "PPP interface", try, j + 1);
deviceRegister("ppp0", newdesc, strdup(try), DEVICE_TYPE_NETWORK, TRUE, mediaInitNetwork,
NULL, mediaShutdownNetwork, NULL);
if (isDebug())
msgDebug("Add mapping for %s to ppp0\n", try);
}
break;
default:
break;
}
}
}
/* Finally, go get the disks and look for DOS partitions to register */
if ((names = Disk_Names()) != NULL) {
int i;
for (i = 0; names[i]; i++) {
Chunk *c1;
Disk *d;
/* Ignore memory disks */
if (!strncmp(names[i], "md", 2))
continue;
d = Open_Disk(names[i]);
if (!d) {
msgDebug("Unable to open disk %s", names[i]);
continue;
}
deviceRegister(names[i], names[i], d->name, DEVICE_TYPE_DISK, FALSE,
dummyInit, dummyGet, dummyShutdown, d);
if (isDebug())
msgDebug("Found a disk device named %s\n", names[i]);
/* Look for existing DOS partitions to register as "DOS media devices" */
for (c1 = d->chunks->part; c1; c1 = c1->next) {
if (c1->type == fat || c1->type == extended) {
Device *dev;
char devname[80];
/* Got one! */
snprintf(devname, sizeof devname, "/dev/%s", c1->name);
dev = deviceRegister(c1->name, c1->name, strdup(devname), DEVICE_TYPE_DOS, TRUE,
mediaInitDOS, mediaGetDOS, mediaShutdownDOS, NULL);
dev->private = c1;
if (isDebug())
msgDebug("Found a DOS partition %s on drive %s\n", c1->name, d->name);
}
}
}
free(names);
}
dialog_clear_norefresh();
}
/* Rescan all devices, after closing previous set - convenience function */
void
deviceRescan(void)
{
deviceReset();
deviceGetAll();
}
/*
* Find all devices that match the criteria, allowing "wildcarding" as well
* by allowing NULL or ANY values to match all. The array returned is static
* and may be used until the next invocation of deviceFind().
*/
Device **
deviceFind(char *name, DeviceType class)
{
static Device *found[DEV_MAX];
int i, j;
j = 0;
for (i = 0; i < numDevs; i++) {
if ((!name || !strcmp(Devices[i]->name, name))
&& (class == DEVICE_TYPE_ANY || class == Devices[i]->type))
found[j++] = Devices[i];
}
found[j] = NULL;
return j ? found : NULL;
}
Device **
deviceFindDescr(char *name, char *desc, DeviceType class)
{
static Device *found[DEV_MAX];
int i, j;
j = 0;
for (i = 0; i < numDevs; i++) {
if ((!name || !strcmp(Devices[i]->name, name)) &&
(!desc || !strcmp(Devices[i]->description, desc)) &&
(class == DEVICE_TYPE_ANY || class == Devices[i]->type))
found[j++] = Devices[i];
}
found[j] = NULL;
return j ? found : NULL;
}
int
deviceCount(Device **devs)
{
int i;
if (!devs)
return 0;
for (i = 0; devs[i]; i++);
return i;
}
/*
* Create a menu listing all the devices of a certain type in the system.
* The passed-in menu is expected to be a "prototype" from which the new
* menu is cloned.
*/
DMenu *
deviceCreateMenu(DMenu *menu, DeviceType type, int (*hook)(dialogMenuItem *d), int (*check)(dialogMenuItem *d))
{
Device **devs;
int numdevs;
DMenu *tmp = NULL;
int i, j;
devs = deviceFind(NULL, type);
numdevs = deviceCount(devs);
if (!numdevs)
return NULL;
tmp = (DMenu *)safe_malloc(sizeof(DMenu) + (sizeof(dialogMenuItem) * (numdevs + 1)));
bcopy(menu, tmp, sizeof(DMenu));
for (i = 0; devs[i]; i++) {
tmp->items[i].prompt = devs[i]->name;
for (j = 0; j < numDevs; j++) {
if (devs[i] == Devices[j]) {
tmp->items[i].title = Devices[j]->description;
break;
}
}
if (j == numDevs)
tmp->items[i].title = "<unknown device type>";
tmp->items[i].fire = hook;
tmp->items[i].checked = check;
}
tmp->items[i].title = NULL;
return tmp;
}