Merge branches 'for-3.16/i2c-hid', 'for-3.16/rmi4', 'for-3.16/sony' and 'for-3.16...

[pandora-kernel.git] / drivers / hid / hid-core.c

diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 9e80642..8ed66fd 100644 (file)
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -718,6 +718,9 @@ static int hid_scan_main(struct hid_parser *parser, struct hid_item *item)
        case HID_MAIN_ITEM_TAG_END_COLLECTION:
                break;
        case HID_MAIN_ITEM_TAG_INPUT:
+               /* ignore constant inputs, they will be ignored by hid-input */
+               if (data & HID_MAIN_ITEM_CONSTANT)
+                       break;
                for (i = 0; i < parser->local.usage_index; i++)
                        hid_scan_input_usage(parser, parser->local.usage[i]);
                break;
@@ -776,6 +779,14 @@ static int hid_scan_report(struct hid_device *hid)
            (hid->group == HID_GROUP_MULTITOUCH))
                hid->group = HID_GROUP_MULTITOUCH_WIN_8;
 
+       /*
+       * Vendor specific handlings
+       */
+       if ((hid->vendor == USB_VENDOR_ID_SYNAPTICS) &&
+           (hid->group == HID_GROUP_GENERIC))
+               /* hid-rmi should take care of them, not hid-generic */
+               hid->group = HID_GROUP_RMI;
+
        vfree(parser);
        return 0;
 }
@@ -839,7 +850,17 @@ struct hid_report *hid_validate_values(struct hid_device *hid,
         * ->numbered being checked, which may not always be the case when
         * drivers go to access report values.
         */
-       report = hid->report_enum[type].report_id_hash[id];
+       if (id == 0) {
+               /*
+                * Validating on id 0 means we should examine the first
+                * report in the list.
+                */
+               report = list_entry(
+                               hid->report_enum[type].report_list.next,
+                               struct hid_report, list);
+       } else {
+               report = hid->report_enum[type].report_id_hash[id];
+       }
        if (!report) {
                hid_err(hid, "missing %s %u\n", hid_report_names[type], id);
                return NULL;
@@ -1250,7 +1271,8 @@ EXPORT_SYMBOL_GPL(hid_output_report);
 
 static int hid_report_len(struct hid_report *report)
 {
-       return ((report->size - 1) >> 3) + 1 + (report->id > 0) + 7;
+       /* equivalent to DIV_ROUND_UP(report->size, 8) + !!(report->id > 0) */
+       return ((report->size - 1) >> 3) + 1 + (report->id > 0);
 }
 
 /*
@@ -1263,7 +1285,7 @@ u8 *hid_alloc_report_buf(struct hid_report *report, gfp_t flags)
         * of implement() working on 8 byte chunks
         */
 
-       int len = hid_report_len(report);
+       int len = hid_report_len(report) + 7;
 
        return kmalloc(len, flags);
 }
@@ -1821,8 +1843,6 @@ static const struct hid_device_id hid_have_special_driver[] = {
        { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_USB) },
        { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_3K) },
        { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_WIRELESS_OPTICAL_DESKTOP_3_0) },
-       { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_2) },
-       { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TOUCH_COVER_2) },
        { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_OFFICE_KB) },
        { HID_USB_DEVICE(USB_VENDOR_ID_MONTEREY, USB_DEVICE_ID_GENIUS_KB29E) },
        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN) },
@@ -1866,7 +1886,11 @@ static const struct hid_device_id hid_have_special_driver[] = {
        { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_RYOS_MK_PRO) },
        { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_SAVU) },
 #endif
+#if IS_ENABLED(CONFIG_HID_SAITEK)
        { HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_PS1000) },
+       { HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_RAT7) },
+       { HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_MMO7) },
+#endif
        { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE) },
        { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD_MOUSE) },
        { HID_USB_DEVICE(USB_VENDOR_ID_SKYCABLE, USB_DEVICE_ID_SKYCABLE_WIRELESS_PRESENTER) },