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authorLinus Torvalds <torvalds@linux-foundation.org>2011-11-03 10:53:22 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2011-11-03 10:53:22 -0400
commit30307c69d59b14723fbf8a524847b302388c702d (patch)
treee6aa7eb7e6b5c567d0f07a3e956ffd9c0b70f3cd /drivers/hid/hid-multitouch.c
parent4536e4d1d21c8172402a2217b0fa1880665ace36 (diff)
parentd682bd7f38b73e5dff0b5584c8ec301ccf76e4db (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: Revert "HID: multitouch: decide if hid-multitouch needs to handle mt devices" HID: drivers/hid/hid-roccat.c: eliminate a null pointer dereference HID: hid-apple: add device ID of another wireless aluminium HID: Add device IDs for Macbook Pro 8 keyboards
Diffstat (limited to 'drivers/hid/hid-multitouch.c')
-rw-r--r--drivers/hid/hid-multitouch.c47
1 files changed, 4 insertions, 43 deletions
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index fa5d7a1ffa9..f1c909f1b23 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -291,7 +291,6 @@ static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
291 td->last_slot_field = usage->hid; 291 td->last_slot_field = usage->hid;
292 td->last_field_index = field->index; 292 td->last_field_index = field->index;
293 td->last_mt_collection = usage->collection_index; 293 td->last_mt_collection = usage->collection_index;
294 hdev->quirks &= ~HID_QUIRK_MULTITOUCH;
295 return 1; 294 return 1;
296 case HID_DG_WIDTH: 295 case HID_DG_WIDTH:
297 hid_map_usage(hi, usage, bit, max, 296 hid_map_usage(hi, usage, bit, max,
@@ -530,44 +529,12 @@ static void mt_set_input_mode(struct hid_device *hdev)
530 } 529 }
531} 530}
532 531
533/* a list of devices for which there is a specialized multitouch driver */
534static const struct hid_device_id mt_have_special_driver[] = {
535 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, 0x0001) },
536 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, 0x0006) },
537 { HID_USB_DEVICE(USB_VENDOR_ID_QUANTA,
538 USB_DEVICE_ID_PIXART_IMAGING_INC_OPTICAL_TOUCH_SCREEN) },
539 { HID_USB_DEVICE(USB_VENDOR_ID_QUANTA,
540 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH) },
541 { }
542};
543
544static bool mt_match_one_id(struct hid_device *hdev,
545 const struct hid_device_id *id)
546{
547 return id->bus == hdev->bus &&
548 (id->vendor == HID_ANY_ID || id->vendor == hdev->vendor) &&
549 (id->product == HID_ANY_ID || id->product == hdev->product);
550}
551
552static const struct hid_device_id *mt_match_id(struct hid_device *hdev,
553 const struct hid_device_id *id)
554{
555 for (; id->bus; id++)
556 if (mt_match_one_id(hdev, id))
557 return id;
558
559 return NULL;
560}
561
562static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id) 532static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
563{ 533{
564 int ret, i; 534 int ret, i;
565 struct mt_device *td; 535 struct mt_device *td;
566 struct mt_class *mtclass = mt_classes; /* MT_CLS_DEFAULT */ 536 struct mt_class *mtclass = mt_classes; /* MT_CLS_DEFAULT */
567 537
568 if (mt_match_id(hdev, mt_have_special_driver))
569 return -ENODEV;
570
571 for (i = 0; mt_classes[i].name ; i++) { 538 for (i = 0; mt_classes[i].name ; i++) {
572 if (id->driver_data == mt_classes[i].name) { 539 if (id->driver_data == mt_classes[i].name) {
573 mtclass = &(mt_classes[i]); 540 mtclass = &(mt_classes[i]);
@@ -575,6 +542,10 @@ static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
575 } 542 }
576 } 543 }
577 544
545 /* This allows the driver to correctly support devices
546 * that emit events over several HID messages.
547 */
548 hdev->quirks |= HID_QUIRK_NO_INPUT_SYNC;
578 549
579 td = kzalloc(sizeof(struct mt_device), GFP_KERNEL); 550 td = kzalloc(sizeof(struct mt_device), GFP_KERNEL);
580 if (!td) { 551 if (!td) {
@@ -590,16 +561,10 @@ static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
590 if (ret != 0) 561 if (ret != 0)
591 goto fail; 562 goto fail;
592 563
593 hdev->quirks |= HID_QUIRK_MULTITOUCH;
594 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT); 564 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
595 if (ret) 565 if (ret)
596 goto fail; 566 goto fail;
597 567
598 /* This allows the driver to correctly support devices
599 * that emit events over several HID messages.
600 */
601 hdev->quirks |= HID_QUIRK_NO_INPUT_SYNC;
602
603 td->slots = kzalloc(td->maxcontacts * sizeof(struct mt_slot), 568 td->slots = kzalloc(td->maxcontacts * sizeof(struct mt_slot),
604 GFP_KERNEL); 569 GFP_KERNEL);
605 if (!td->slots) { 570 if (!td->slots) {
@@ -793,10 +758,6 @@ static const struct hid_device_id mt_devices[] = {
793 HID_USB_DEVICE(USB_VENDOR_ID_XAT, 758 HID_USB_DEVICE(USB_VENDOR_ID_XAT,
794 USB_DEVICE_ID_XAT_CSR) }, 759 USB_DEVICE_ID_XAT_CSR) },
795 760
796 /* Rest of the world */
797 { .driver_data = MT_CLS_DEFAULT,
798 HID_USB_DEVICE(HID_ANY_ID, HID_ANY_ID) },
799
800 { } 761 { }
801}; 762};
802MODULE_DEVICE_TABLE(hid, mt_devices); 763MODULE_DEVICE_TABLE(hid, mt_devices);