From c4c259bcc27c4242b012106afdba183622b1735f Mon Sep 17 00:00:00 2001 From: Jiri Kosina Date: Tue, 15 Sep 2009 16:27:45 +0200 Subject: [PATCH] HID: consolidate connect and disconnect into core code HID core registers input, hidraw and hiddev devices, but leaves unregistering it up to the individual driver, which is not really nice. Let's move all the logic to the core. Reported-by: Marcel Holtmann Reported-by: Brian Rogers Acked-by: Marcel Holtmann Signed-off-by: Jiri Kosina --- drivers/hid/hid-core.c | 11 +++++++++++ drivers/hid/usbhid/hid-core.c | 16 +++++----------- include/linux/hid.h | 3 +++ net/bluetooth/hidp/core.c | 7 ------- 4 files changed, 19 insertions(+), 18 deletions(-) diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c index ca9bb26c2076..be34d32906bd 100644 --- a/drivers/hid/hid-core.c +++ b/drivers/hid/hid-core.c @@ -1237,6 +1237,17 @@ int hid_connect(struct hid_device *hdev, unsigned int connect_mask) } EXPORT_SYMBOL_GPL(hid_connect); +void hid_disconnect(struct hid_device *hdev) +{ + if (hdev->claimed & HID_CLAIMED_INPUT) + hidinput_disconnect(hdev); + if (hdev->claimed & HID_CLAIMED_HIDDEV) + hdev->hiddev_disconnect(hdev); + if (hdev->claimed & HID_CLAIMED_HIDRAW) + hidraw_disconnect(hdev); +} +EXPORT_SYMBOL_GPL(hid_disconnect); + /* a list of devices for which there is a specialized driver on HID bus */ static const struct hid_device_id hid_blacklist[] = { { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_WCP32PU) }, diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c index 1b0e07a67d6d..03bd703255a3 100644 --- a/drivers/hid/usbhid/hid-core.c +++ b/drivers/hid/usbhid/hid-core.c @@ -1041,13 +1041,6 @@ static void usbhid_stop(struct hid_device *hid) hid_cancel_delayed_stuff(usbhid); - if (hid->claimed & HID_CLAIMED_INPUT) - hidinput_disconnect(hid); - if (hid->claimed & HID_CLAIMED_HIDDEV) - hiddev_disconnect(hid); - if (hid->claimed & HID_CLAIMED_HIDRAW) - hidraw_disconnect(hid); - hid->claimed = 0; usb_free_urb(usbhid->urbin); @@ -1085,7 +1078,7 @@ static struct hid_ll_driver usb_hid_driver = { .hidinput_input_event = usb_hidinput_input_event, }; -static int hid_probe(struct usb_interface *intf, const struct usb_device_id *id) +static int usbhid_probe(struct usb_interface *intf, const struct usb_device_id *id) { struct usb_host_interface *interface = intf->cur_altsetting; struct usb_device *dev = interface_to_usbdev(intf); @@ -1117,6 +1110,7 @@ static int hid_probe(struct usb_interface *intf, const struct usb_device_id *id) hid->ff_init = hid_pidff_init; #ifdef CONFIG_USB_HIDDEV hid->hiddev_connect = hiddev_connect; + hid->hiddev_disconnect = hiddev_disconnect; hid->hiddev_hid_event = hiddev_hid_event; hid->hiddev_report_event = hiddev_report_event; #endif @@ -1177,7 +1171,7 @@ static int hid_probe(struct usb_interface *intf, const struct usb_device_id *id) return ret; } -static void hid_disconnect(struct usb_interface *intf) +static void usbhid_disconnect(struct usb_interface *intf) { struct hid_device *hid = usb_get_intfdata(intf); struct usbhid_device *usbhid; @@ -1359,8 +1353,8 @@ MODULE_DEVICE_TABLE (usb, hid_usb_ids); static struct usb_driver hid_driver = { .name = "usbhid", - .probe = hid_probe, - .disconnect = hid_disconnect, + .probe = usbhid_probe, + .disconnect = usbhid_disconnect, #ifdef CONFIG_PM .suspend = hid_suspend, .resume = hid_resume, diff --git a/include/linux/hid.h b/include/linux/hid.h index a0ebdace7baa..10f628416740 100644 --- a/include/linux/hid.h +++ b/include/linux/hid.h @@ -494,6 +494,7 @@ struct hid_device { /* device report descriptor */ /* hiddev event handler */ int (*hiddev_connect)(struct hid_device *, unsigned int); + void (*hiddev_disconnect)(struct hid_device *); void (*hiddev_hid_event) (struct hid_device *, struct hid_field *field, struct hid_usage *, __s32); void (*hiddev_report_event) (struct hid_device *, struct hid_report *); @@ -691,6 +692,7 @@ struct hid_device *hid_allocate_device(void); int hid_parse_report(struct hid_device *hid, __u8 *start, unsigned size); int hid_check_keys_pressed(struct hid_device *hid); int hid_connect(struct hid_device *hid, unsigned int connect_mask); +void hid_disconnect(struct hid_device *hid); /** * hid_map_usage - map usage input bits @@ -800,6 +802,7 @@ static inline int __must_check hid_hw_start(struct hid_device *hdev, */ static inline void hid_hw_stop(struct hid_device *hdev) { + hid_disconnect(hdev); hdev->ll_driver->stop(hdev); } diff --git a/net/bluetooth/hidp/core.c b/net/bluetooth/hidp/core.c index 09bedeb5579c..49d8495d69be 100644 --- a/net/bluetooth/hidp/core.c +++ b/net/bluetooth/hidp/core.c @@ -577,11 +577,6 @@ static int hidp_session(void *arg) } if (session->hid) { - if (session->hid->claimed & HID_CLAIMED_INPUT) - hidinput_disconnect(session->hid); - if (session->hid->claimed & HID_CLAIMED_HIDRAW) - hidraw_disconnect(session->hid); - hid_destroy_device(session->hid); session->hid = NULL; } @@ -747,8 +742,6 @@ static void hidp_stop(struct hid_device *hid) skb_queue_purge(&session->ctrl_transmit); skb_queue_purge(&session->intr_transmit); - if (hid->claimed & HID_CLAIMED_INPUT) - hidinput_disconnect(hid); hid->claimed = 0; }