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xfree86: Match devices based on USB ID

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Sometimes the vendor and product names aren't specific enough to target
a USB device, so expose the numeric codes in the ID. A MatchUSBID entry
has been added that supports shell pattern matching when fnmatch(3) is
available. For example:

	MatchUSBID "046d:*"

The IDs are stored in lowercase hex separated by a ':' like "lsusb" or
"lspci -n".

Signed-off-by: Dan Nicholson <dbn.lists@gmail.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This commit is contained in:
Dan Nicholson 2010-06-10 06:15:41 -07:00 committed by Peter Hutterer
parent 645679c152
commit 87a1507da7
10 changed files with 88 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
config/hal.c
View File

@ -184,7 +184,24 @@ device_added(LibHalContext *hal_ctx, const char *udi)
parent = get_prop_string(hal_ctx, udi, "info.parent");
if (parent) {
int usb_vendor, usb_product;
attrs.pnp_id = get_prop_string(hal_ctx, parent, "pnp.id");
/* construct USB ID in lowercase - "0000:ffff" */
usb_vendor = libhal_device_get_property_int(hal_ctx, parent,
"usb.vendor_id", NULL);
LogMessageVerb(X_INFO, 10,
"config/hal: getting usb.vendor_id on %s "
"returned %04x\n", parent, usb_vendor);
usb_product = libhal_device_get_property_int(hal_ctx, parent,
"usb.product_id", NULL);
LogMessageVerb(X_INFO, 10,
"config/hal: getting usb.product_id on %s "
"returned %04x\n", parent, usb_product);
if (usb_vendor && usb_product)
attrs.usb_id = Xprintf("%04x:%04x", usb_vendor, usb_product);
free(parent);
}
@ -391,6 +408,7 @@ unwind:
free(attrs.vendor);
free(attrs.device);
free(attrs.pnp_id);
free(attrs.usb_id);
if (attrs.tags) {
char **tag = attrs.tags;
while (*tag) {

20
config/udev.c
View File

@ -28,6 +28,7 @@
#endif
#include <libudev.h>
#include <ctype.h>
#include "input.h"
#include "inputstr.h"
@ -57,6 +58,7 @@ device_added(struct udev_device *udev_device)
char *config_info = NULL;
const char *syspath;
const char *tags_prop;
const char *usb_vendor = NULL, *usb_model = NULL;
const char *key, *value, *tmp;
InputOption *options = NULL, *tmpo;
InputAttributes attrs = {};
@ -150,6 +152,12 @@ device_added(struct udev_device *udev_device)
} else if (!strcmp(key, "ID_VENDOR")) {
LOG_PROPERTY(path, key, value);
attrs.vendor = value;
} else if (!strcmp(key, "ID_VENDOR_ID")) {
LOG_PROPERTY(path, key, value);
usb_vendor = value;
} else if (!strcmp(key, "ID_VENDOR_MODEL")) {
LOG_PROPERTY(path, key, value);
usb_model = value;
} else if (!strcmp(key, "ID_INPUT_KEY")) {
LOG_PROPERTY(path, key, value);
attrs.flags |= ATTR_KEYBOARD;
@ -170,6 +178,17 @@ device_added(struct udev_device *udev_device)
attrs.flags |= ATTR_TOUCHSCREEN;
}
}
/* construct USB ID in lowercase hex - "0000:ffff" */
if (usb_vendor && usb_model) {
attrs.usb_id = Xprintf("%s:%s", usb_vendor, usb_model);
if (attrs.usb_id) {
char *cur;
for (cur = attrs.usb_id; *cur; cur++)
*cur = tolower(*cur);
}
}
LogMessage(X_INFO, "config/udev: Adding input device %s (%s)\n",
name, path);
rc = NewInputDeviceRequest(options, &attrs, &dev);
@ -190,6 +209,7 @@ device_added(struct udev_device *udev_device)
free(tmpo);
}
free(attrs.usb_id);
if (attrs.tags) {
char **tag = attrs.tags;
while (*tag) {

3
dix/inpututils.c
View File

@ -359,6 +359,8 @@ DuplicateInputAttributes(InputAttributes *attrs)
goto unwind;
if (attrs->pnp_id && !(new_attr->pnp_id = strdup(attrs->pnp_id)))
goto unwind;
if (attrs->usb_id && !(new_attr->usb_id = strdup(attrs->usb_id)))
goto unwind;
new_attr->flags = attrs->flags;
@ -404,6 +406,7 @@ FreeInputAttributes(InputAttributes *attrs)
free(attrs->vendor);
free(attrs->device);
free(attrs->pnp_id);
free(attrs->usb_id);
if ((tags = attrs->tags))
while(*tags)

4
hw/xfree86/common/xf86Xinput.c
View File

@ -604,6 +604,10 @@ InputClassMatches(const XF86ConfInputClassPtr iclass,
if (!MatchAttrToken(attrs->pnp_id, iclass->match_pnpid, match_pattern))
return FALSE;
/* MatchUSBID pattern */
if (!MatchAttrToken(attrs->usb_id, iclass->match_usbid, match_pattern))
return FALSE;
/*
* MatchTag string
* See if any of the device's tags match any of the MatchTag tokens.

9
hw/xfree86/doc/man/xorg.conf.man.pre
View File

@ -1101,6 +1101,15 @@ The device's Plug and Play (PnP) ID can be checked against the
shell wildcard pattern. Multiple IDs can be matched by separating arguments
with a '|' character.
.TP 7
.BI "MatchUSBID \*q" matchusb \*q
The device's USB ID can be checked against the
.RI \*q matchusb \*q
shell wildcard pattern. The ID is constructed as lowercase hexadecimal numbers
separated by a ':'. This is the same format as the
.BR lsusb (8)
program. Multiple IDs can be matched by separating arguments with a '|'
character.
.TP 7
.BI "MatchTag \*q" matchtag \*q
This entry can be used to check if tags assigned by the config backend
matches the

19
hw/xfree86/parser/InputClass.c
View File

@ -49,6 +49,7 @@ xf86ConfigSymTabRec InputClassTab[] =
{MATCH_DEVICE_PATH, "matchdevicepath"},
{MATCH_OS, "matchos"},
{MATCH_PNPID, "matchpnpid"},
{MATCH_USBID, "matchusbid"},
{MATCH_TAG, "matchtag"},
{MATCH_IS_KEYBOARD, "matchiskeyboard"},
{MATCH_IS_POINTER, "matchispointer"},
@ -120,6 +121,11 @@ xf86parseInputClassSection(void)
Error(QUOTE_MSG, "MatchPnPID");
ptr->match_pnpid = xstrtokenize(val.str, TOKEN_SEP);
break;
case MATCH_USBID:
if (xf86getSubToken(&(ptr->comment)) != STRING)
Error(QUOTE_MSG, "MatchUSBID");
ptr->match_usbid = xstrtokenize(val.str, TOKEN_SEP);
break;
case MATCH_TAG:
if (xf86getSubToken(&(ptr->comment)) != STRING)
Error(QUOTE_MSG, "MatchTag");
@ -245,6 +251,14 @@ xf86printInputClassSection (FILE * cf, XF86ConfInputClassPtr ptr)
*list);
fprintf(cf, "\"\n");
}
if (ptr->match_usbid) {
fprintf(cf, "\tMatchUSBID \"");
for (list = ptr->match_usbid; *list; list++)
fprintf(cf, "%s%s",
list == ptr->match_usbid ? "" : TOKEN_SEP,
*list);
fprintf(cf, "\"\n");
}
if (ptr->match_tag) {
fprintf(cf, "\tMatchTag \"");
for (list = ptr->match_tag; *list; list++)
@ -311,6 +325,11 @@ xf86freeInputClassList (XF86ConfInputClassPtr ptr)
free(*list);
free(ptr->match_pnpid);
}
if (ptr->match_usbid) {
for (list = ptr->match_usbid; *list; list++)
free(*list);
free(ptr->match_usbid);
}
if (ptr->match_tag) {
for (list = ptr->match_tag; *list; list++)
free(*list);

1
hw/xfree86/parser/xf86Parser.h
View File

@ -348,6 +348,7 @@ typedef struct
char **match_device;
char **match_os;
char **match_pnpid;
char **match_usbid;
char **match_tag;
xf86TriState is_keyboard;
xf86TriState is_pointer;

1
hw/xfree86/parser/xf86tokens.h
View File

@ -281,6 +281,7 @@ typedef enum {
MATCH_DEVICE_PATH,
MATCH_OS,
MATCH_PNPID,
MATCH_USBID,
MATCH_TAG,
MATCH_IS_KEYBOARD,
MATCH_IS_POINTER,

1
include/input.h
View File

@ -216,6 +216,7 @@ typedef struct _InputAttributes {
char *vendor;
char *device;
char *pnp_id;
char *usb_id;
char **tags; /* null-terminated */
uint32_t flags;
} InputAttributes;

12
test/input.c
View File

@ -808,6 +808,13 @@ static void cmp_attr_fields(InputAttributes *attr1,
} else
g_assert(attr2->pnp_id == NULL);
if (attr1->usb_id != NULL)
{
g_assert(attr1->usb_id != attr2->usb_id);
g_assert(strcmp(attr1->usb_id, attr2->usb_id) == 0);
} else
g_assert(attr2->usb_id == NULL);
tags1 = attr1->tags;
tags2 = attr2->tags;
@ -878,6 +885,11 @@ static void dix_input_attributes(void)
cmp_attr_fields(&orig, new);
FreeInputAttributes(new);
orig.usb_id = "USBID";
new = DuplicateInputAttributes(&orig);
cmp_attr_fields(&orig, new);
FreeInputAttributes(new);
orig.flags = 0xF0;
new = DuplicateInputAttributes(&orig);
cmp_attr_fields(&orig, new);