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winebus.sys: Parse udev device version and input number from uevent. 

And try parsing it from the hid or input and usb parent nodes, but not
beyond.

Signed-off-by: Rémi Bernon <rbernon@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Rémi Bernon 2021-08-16 08:56:24 +02:00 committed by Alexandre Julliard
parent c2fc919e04
commit fd73402ce6
1 changed files with 23 additions and 41 deletions
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64
dlls/winebus.sys/bus_udev.c
View File

@ -995,27 +995,30 @@ static int check_device_syspath(DEVICE_OBJECT *device, void* context)
return strcmp(get_device_syspath(private->udev_device), context);
}
static void parse_uevent_info(struct udev_device *dev, DWORD *vendor_id, DWORD *product_id,
DWORD *input, WCHAR **serial_number)
static void get_device_subsystem_info(struct udev_device *dev, char const *subsystem, DWORD *vendor_id,
DWORD *product_id, DWORD *input, DWORD *version, WCHAR **serial_number)
{
struct udev_device *parent = NULL;
const char *ptr, *next, *tmp;
char buffer[256];
DWORD bus = 0;
if ((next = udev_device_get_sysattr_value(dev, "uevent")))
if (!(parent = udev_device_get_parent_with_subsystem_devtype(dev, subsystem, NULL))) return;
if ((next = udev_device_get_sysattr_value(parent, "uevent")))
{
while ((ptr = next) && *ptr)
{
if ((next = strchr(next, '\n'))) next += 1;
else next = ptr + strlen(ptr);
TRACE("uevent %s\n", debugstr_an(ptr, next - ptr - 1));
TRACE("%s uevent %s\n", subsystem, debugstr_an(ptr, next - ptr - 1));
if (!strncmp(ptr, "HID_UNIQ=", 9))
{
if (sscanf(ptr, "HID_UNIQ=%256s\n", buffer) != 1 || !*buffer) continue;
if (!*serial_number) *serial_number = strdupAtoW(buffer);
}
if (!strncmp(ptr, "HID_PHYS=", 9))
if (!strncmp(ptr, "HID_PHYS=", 9) || !strncmp(ptr, "PHYS=\"", 6))
{
if (!(tmp = strstr(ptr, "/input")) || tmp >= next) continue;
if (*input == -1) sscanf(tmp, "/input%d\n", input);
@ -1025,27 +1028,21 @@ static void parse_uevent_info(struct udev_device *dev, DWORD *vendor_id, DWORD *
if (bus || *vendor_id || *product_id) continue;
sscanf(ptr, "HID_ID=%x:%x:%x\n", &bus, vendor_id, product_id);
}
if (!strncmp(ptr, "PRODUCT=", 8))
{
if (*version) continue;
if (!strcmp(subsystem, "usb"))
sscanf(ptr, "PRODUCT=%x/%x/%x\n", vendor_id, product_id, version);
else
sscanf(ptr, "PRODUCT=%x/%x/%x/%x\n", &bus, vendor_id, product_id, version);
}
}
}
}
static DWORD a_to_bcd(const char *s)
{
DWORD r = 0;
const char *c;
int shift = strlen(s) - 1;
for (c = s; *c; ++c)
{
r |= (*c - '0') << (shift * 4);
--shift;
}
return r;
}
static void try_add_device(struct udev_device *dev)
{
DWORD vid = 0, pid = 0, version = 0, input = -1;
struct udev_device *hiddev = NULL, *walk_device;
DEVICE_OBJECT *device = NULL;
const char *subsystem;
const char *devnode;
@ -1076,25 +1073,9 @@ static void try_add_device(struct udev_device *dev)
}
#endif
hiddev = udev_device_get_parent_with_subsystem_devtype(dev, "hid", NULL);
if (hiddev)
{
const char *bcdDevice = NULL;
parse_uevent_info(hiddev, &vid, &pid, &input, &serial);
if (serial == NULL)
serial = strdupAtoW(base_serial);
walk_device = dev;
while (walk_device && !bcdDevice)
{
bcdDevice = udev_device_get_sysattr_value(walk_device, "bcdDevice");
walk_device = udev_device_get_parent(walk_device);
}
if (bcdDevice)
{
version = a_to_bcd(bcdDevice);
}
}
get_device_subsystem_info(dev, "hid", &vid, &pid, &input, &version, &serial);
get_device_subsystem_info(dev, "input", &vid, &pid, &input, &version, &serial);
get_device_subsystem_info(dev, "usb", &vid, &pid, &input, &version, &serial);
subsystem = udev_device_get_subsystem(dev);
#ifdef HAS_PROPER_INPUT_HEADER
@ -1118,6 +1099,8 @@ static void try_add_device(struct udev_device *dev)
}
#endif
if (serial == NULL) serial = strdupAtoW(base_serial);
if (is_xbox_gamepad(vid, pid))
is_gamepad = TRUE;
#ifdef HAS_PROPER_INPUT_HEADER
@ -1132,9 +1115,8 @@ static void try_add_device(struct udev_device *dev)
if (input == (WORD)-1 && is_gamepad)
input = 0;
TRACE("Found udev device %s (vid %04x, pid %04x, version %u, serial %s)\n",
debugstr_a(devnode), vid, pid, version, debugstr_w(serial));
TRACE("Found udev device %s (vid %04x, pid %04x, version %04x, input %d, serial %s)\n",
debugstr_a(devnode), vid, pid, version, input, debugstr_w(serial));
if (strcmp(subsystem, "hidraw") == 0)
{