diff options
Diffstat (limited to 'drivers/hid/hid-core.c')
| -rw-r--r-- | drivers/hid/hid-core.c | 45 |
1 files changed, 40 insertions, 5 deletions
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c index c96e548cd7b8..eb2ee11b6412 100644 --- a/drivers/hid/hid-core.c +++ b/drivers/hid/hid-core.c @@ -92,6 +92,7 @@ EXPORT_SYMBOL_GPL(hid_register_report); static struct hid_field *hid_register_field(struct hid_report *report, unsigned usages, unsigned values) { struct hid_field *field; + int i; if (report->maxfield == HID_MAX_FIELDS) { hid_err(report->device, "too many fields in report\n"); @@ -110,6 +111,9 @@ static struct hid_field *hid_register_field(struct hid_report *report, unsigned field->value = (s32 *)(field->usage + usages); field->report = report; + for (i = 0; i < usages; i++) + field->usage[i].usage_index = i; + return field; } @@ -315,6 +319,7 @@ static s32 item_sdata(struct hid_item *item) static int hid_parser_global(struct hid_parser *parser, struct hid_item *item) { + __u32 raw_value; switch (item->tag) { case HID_GLOBAL_ITEM_TAG_PUSH: @@ -365,7 +370,14 @@ static int hid_parser_global(struct hid_parser *parser, struct hid_item *item) return 0; case HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT: - parser->global.unit_exponent = item_sdata(item); + /* Units exponent negative numbers are given through a + * two's complement. + * See "6.2.2.7 Global Items" for more information. */ + raw_value = item_udata(item); + if (!(raw_value & 0xfffffff0)) + parser->global.unit_exponent = hid_snto32(raw_value, 4); + else + parser->global.unit_exponent = raw_value; return 0; case HID_GLOBAL_ITEM_TAG_UNIT: @@ -870,6 +882,12 @@ static s32 snto32(__u32 value, unsigned n) return value & (1 << (n - 1)) ? value | (-1 << n) : value; } +s32 hid_snto32(__u32 value, unsigned n) +{ + return snto32(value, n); +} +EXPORT_SYMBOL_GPL(hid_snto32); + /* * Convert a signed 32-bit integer to a signed n-bit integer. */ @@ -1547,6 +1565,7 @@ static const struct hid_device_id hid_have_special_driver[] = { { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ANSI) }, { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ISO) }, { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_JIS) }, + { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ANSI) }, { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ISO) }, { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) }, { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) }, @@ -1580,6 +1599,7 @@ static const struct hid_device_id hid_have_special_driver[] = { { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_3) }, { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK, USB_DEVICE_ID_HOLTEK_ON_LINE_GRIP) }, { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_KEYBOARD) }, + { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ION, USB_DEVICE_ID_ICADE) }, { HID_USB_DEVICE(USB_VENDOR_ID_KENSINGTON, USB_DEVICE_ID_KS_SLIMBLADE) }, { HID_USB_DEVICE(USB_VENDOR_ID_KEYTOUCH, USB_DEVICE_ID_KEYTOUCH_IEC) }, { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_ERGO_525V) }, @@ -1663,6 +1683,7 @@ static const struct hid_device_id hid_have_special_driver[] = { { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ISKU) }, { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPLUS) }, { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KOVAPLUS) }, + { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_LUA) }, { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRED) }, { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRELESS) }, { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_SAVU) }, @@ -2154,8 +2175,13 @@ static const struct hid_device_id hid_mouse_ignore_list[] = { { } }; -static bool hid_ignore(struct hid_device *hdev) +bool hid_ignore(struct hid_device *hdev) { + if (hdev->quirks & HID_QUIRK_NO_IGNORE) + return false; + if (hdev->quirks & HID_QUIRK_IGNORE) + return true; + switch (hdev->vendor) { case USB_VENDOR_ID_CODEMERCS: /* ignore all Code Mercenaries IOWarrior devices */ @@ -2192,7 +2218,16 @@ static bool hid_ignore(struct hid_device *hdev) if (hdev->product == USB_DEVICE_ID_JESS_YUREX && hdev->type == HID_TYPE_USBNONE) return true; - break; + break; + case USB_VENDOR_ID_DWAV: + /* These are handled by usbtouchscreen. hdev->type is probably + * HID_TYPE_USBNONE, but we say !HID_TYPE_USBMOUSE to match + * usbtouchscreen. */ + if ((hdev->product == USB_DEVICE_ID_EGALAX_TOUCHCONTROLLER || + hdev->product == USB_DEVICE_ID_DWAV_TOUCHCONTROLLER) && + hdev->type != HID_TYPE_USBMOUSE) + return true; + break; } if (hdev->type == HID_TYPE_USBMOUSE && @@ -2201,6 +2236,7 @@ static bool hid_ignore(struct hid_device *hdev) return !!hid_match_id(hdev, hid_ignore_list); } +EXPORT_SYMBOL_GPL(hid_ignore); int hid_add_device(struct hid_device *hdev) { @@ -2212,8 +2248,7 @@ int hid_add_device(struct hid_device *hdev) /* we need to kill them here, otherwise they will stay allocated to * wait for coming driver */ - if (!(hdev->quirks & HID_QUIRK_NO_IGNORE) - && (hid_ignore(hdev) || (hdev->quirks & HID_QUIRK_IGNORE))) + if (hid_ignore(hdev)) return -ENODEV; /* |