HID: hid, make parsing event driven

Next step for complete hid bus, this patch includes:
- call parser either from probe or from hid-core if there is no probe.
- add ll_driver structure and centralize some stuff there (open, close...)
- split and merge usb_hid_configure and hid_probe into several functions
  to allow hooks/fixes between them

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

1 files changed, 17 insertions, 7 deletions

diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 017fc20167d4..3dacbcd7e41c 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -648,6 +648,9 @@ int hid_parse_report(struct hid_device *device, __u8 *start,
                 hid_parser_reserved
         };
 
+        if (device->driver->report_fixup)
+                device->driver->report_fixup(device, start, size);
+
         device->rdesc = kmalloc(size, GFP_KERNEL);
         if (device->rdesc == NULL)
                 return -ENOMEM;
@@ -1152,15 +1155,20 @@ static int hid_device_probe(struct device *dev)
         int ret = 0;
 
         if (!hdev->driver) {
-                if (hdrv->probe) {
-                        ret = -ENODEV;
+                id = hid_match_id(hdev, hdrv->id_table);
+                if (id == NULL)
+                        return -ENODEV;
 
-                        id = hid_match_id(hdev, hdrv->id_table);
-                        if (id)
-                                ret = hdrv->probe(hdev, id);
+                hdev->driver = hdrv;
+                if (hdrv->probe) {
+                        ret = hdrv->probe(hdev, id);
+                } else { /* default probe */
+                        ret = hid_parse(hdev);
+                        if (!ret)
+                                ret = hid_hw_start(hdev);
                 }
-                if (!ret)
-                        hdev->driver = hdrv;
+                if (ret)
+                        hdev->driver = NULL;
         }
         return ret;
 }
@@ -1173,6 +1181,8 @@ static int hid_device_remove(struct device *dev)
         if (hdrv) {
                 if (hdrv->remove)
                         hdrv->remove(hdev);
+                else /* default remove */
+                        hid_hw_stop(hdev);
                 hdev->driver = NULL;
         }