HID: move connect quirks

Move connecting from usbhid to the hid layer and fix also hidp in
that manner.
This removes all the ignore/force hidinput/hiddev connecting quirks.
Signed-off-by: NJiri Slaby <jirislaby@gmail.com>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

drivers/hid/hid-a4tech.c

@@ -107,7 +107,7 @@ static int a4_probe(struct hid_device *hdev, const struct hid_device_id *id)
 		goto err_free;
 	}
 
-	ret = hid_hw_start(hdev);
+	ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
 	if (ret) {
 		dev_err(&hdev->dev, "hw start failed\n");
 		goto err_free;

drivers/hid/hid-apple.c

@@ -309,6 +309,7 @@ static int apple_probe(struct hid_device *hdev,
 {
 	unsigned long quirks = id->driver_data;
 	struct apple_sc *asc;
+	unsigned int connect_mask = HID_CONNECT_DEFAULT;
 	int ret;
 
 	/* return something else or move to hid layer? device will reside
@@ -328,18 +329,18 @@ static int apple_probe(struct hid_device *hdev,
 
 	hid_set_drvdata(hdev, asc);
 
-	if (quirks & APPLE_HIDDEV)
-		hdev->quirks |= HID_QUIRK_HIDDEV;
-	if (quirks & APPLE_IGNORE_HIDINPUT)
-		hdev->quirks |= HID_QUIRK_IGNORE_HIDINPUT;
-
 	ret = hid_parse(hdev);
 	if (ret) {
 		dev_err(&hdev->dev, "parse failed\n");
 		goto err_free;
 	}
 
-	ret = hid_hw_start(hdev);
+	if (quirks & APPLE_HIDDEV)
+		connect_mask |= HID_CONNECT_HIDDEV_FORCE;
+	if (quirks & APPLE_IGNORE_HIDINPUT)
+		connect_mask &= ~HID_CONNECT_HIDINPUT;
+
+	ret = hid_hw_start(hdev, connect_mask);
 	if (ret) {
 		dev_err(&hdev->dev, "hw start failed\n");
 		goto err_free;

drivers/hid/hid-belkin.c

@@ -54,16 +54,14 @@ static int belkin_probe(struct hid_device *hdev, const struct hid_device_id *id)
 
 	hid_set_drvdata(hdev, (void *)quirks);
 
-	if (quirks & BELKIN_HIDDEV)
-		hdev->quirks |= HID_QUIRK_HIDDEV;
-
 	ret = hid_parse(hdev);
 	if (ret) {
 		dev_err(&hdev->dev, "parse failed\n");
 		goto err_free;
 	}
 
-	ret = hid_hw_start(hdev);
+	ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT |
+		((quirks & BELKIN_HIDDEV) ? HID_CONNECT_HIDDEV_FORCE : 0));
 	if (ret) {
 		dev_err(&hdev->dev, "hw start failed\n");
 		goto err_free;

drivers/hid/hid-core.c

@@ -1113,6 +1113,80 @@ int hid_input_report(struct hid_device *hid, int type, u8 *data, int size, int i
 }
 EXPORT_SYMBOL_GPL(hid_input_report);
 
+int hid_connect(struct hid_device *hdev, unsigned int connect_mask)
+{
+	static const char *types[] = { "Device", "Pointer", "Mouse", "Device",
+		"Joystick", "Gamepad", "Keyboard", "Keypad",
+		"Multi-Axis Controller"
+	};
+	const char *type, *bus;
+	char buf[64];
+	unsigned int i;
+	int len;
+
+	if (hdev->bus != BUS_USB)
+		connect_mask &= ~HID_CONNECT_HIDDEV;
+
+	if ((connect_mask & HID_CONNECT_HIDINPUT) && !hidinput_connect(hdev,
+				connect_mask & HID_CONNECT_HIDINPUT_FORCE))
+		hdev->claimed |= HID_CLAIMED_INPUT;
+	if ((connect_mask & HID_CONNECT_HIDDEV) && hdev->hiddev_connect &&
+			!hdev->hiddev_connect(hdev,
+				connect_mask & HID_CONNECT_HIDDEV_FORCE))
+		hdev->claimed |= HID_CLAIMED_HIDDEV;
+	if ((connect_mask & HID_CONNECT_HIDRAW) && !hidraw_connect(hdev))
+		hdev->claimed |= HID_CLAIMED_HIDRAW;
+
+	if (!hdev->claimed) {
+		dev_err(&hdev->dev, "claimed by neither input, hiddev nor "
+				"hidraw\n");
+		return -ENODEV;
+	}
+
+	if ((hdev->claimed & HID_CLAIMED_INPUT) &&
+			(connect_mask & HID_CONNECT_FF) && hdev->ff_init)
+		hdev->ff_init(hdev);
+
+	len = 0;
+	if (hdev->claimed & HID_CLAIMED_INPUT)
+		len += sprintf(buf + len, "input");
+	if (hdev->claimed & HID_CLAIMED_HIDDEV)
+		len += sprintf(buf + len, "%shiddev%d", len ? "," : "",
+				hdev->minor);
+	if (hdev->claimed & HID_CLAIMED_HIDRAW)
+		len += sprintf(buf + len, "%shidraw%d", len ? "," : "",
+				((struct hidraw *)hdev->hidraw)->minor);
+
+	type = "Device";
+	for (i = 0; i < hdev->maxcollection; i++) {
+		struct hid_collection *col = &hdev->collection[i];
+		if (col->type == HID_COLLECTION_APPLICATION &&
+		   (col->usage & HID_USAGE_PAGE) == HID_UP_GENDESK &&
+		   (col->usage & 0xffff) < ARRAY_SIZE(types)) {
+			type = types[col->usage & 0xffff];
+			break;
+		}
+	}
+
+	switch (hdev->bus) {
+	case BUS_USB:
+		bus = "USB";
+		break;
+	case BUS_BLUETOOTH:
+		bus = "BLUETOOTH";
+		break;
+	default:
+		bus = "<UNKNOWN>";
+	}
+
+	dev_info(&hdev->dev, "%s: %s HID v%x.%02x %s [%s] on %s\n",
+			buf, bus, hdev->version >> 8, hdev->version & 0xff,
+			type, hdev->name, hdev->phys);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(hid_connect);
+
 static bool hid_match_one_id(struct hid_device *hdev,
 		const struct hid_device_id *id)
 {
@@ -1238,7 +1312,7 @@ static int hid_device_probe(struct device *dev)
 		} else { /* default probe */
 			ret = hid_parse(hdev);
 			if (!ret)
-				ret = hid_hw_start(hdev);
+				ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
 		}
 		if (ret)
 			hdev->driver = NULL;

drivers/hid/hid-cypress.c

@@ -110,7 +110,7 @@ static int cp_probe(struct hid_device *hdev, const struct hid_device_id *id)
 		goto err_free;
 	}
 
-	ret = hid_hw_start(hdev);
+	ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
 	if (ret) {
 		dev_err(&hdev->dev, "hw start failed\n");
 		goto err_free;

drivers/hid/hid-dell.c

@@ -34,7 +34,7 @@ static int dell_probe(struct hid_device *hdev, const struct hid_device_id *id)
 		goto err_free;
 	}
 
-	ret = hid_hw_start(hdev);
+	ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
 	if (ret) {
 		dev_err(&hdev->dev, "hw start failed\n");
 		goto err_free;

drivers/hid/hid-input.c

@@ -700,7 +700,7 @@ static void hidinput_close(struct input_dev *dev)
  * Read all reports and initialize the absolute field values.
  */
 
-int hidinput_connect(struct hid_device *hid)
+int hidinput_connect(struct hid_device *hid, unsigned int force)
 {
 	struct hid_report *report;
 	struct hid_input *hidinput = NULL;
@@ -708,19 +708,20 @@ int hidinput_connect(struct hid_device *hid)
 	int i, j, k;
 	int max_report_type = HID_OUTPUT_REPORT;
 
-	if (hid->quirks & HID_QUIRK_IGNORE_HIDINPUT)
-		return -1;
-
 	INIT_LIST_HEAD(&hid->inputs);
 
-	for (i = 0; i < hid->maxcollection; i++)
-		if (hid->collection[i].type == HID_COLLECTION_APPLICATION ||
-		    hid->collection[i].type == HID_COLLECTION_PHYSICAL)
-			if (IS_INPUT_APPLICATION(hid->collection[i].usage))
+	if (!force) {
+		for (i = 0; i < hid->maxcollection; i++) {
+			struct hid_collection *col = &hid->collection[i];
+			if (col->type == HID_COLLECTION_APPLICATION ||
+					col->type == HID_COLLECTION_PHYSICAL)
+				if (IS_INPUT_APPLICATION(col->usage))
 					break;
+		}
 
-	if (i == hid->maxcollection && (hid->quirks & HID_QUIRK_HIDINPUT) == 0)
+		if (i == hid->maxcollection)
 			return -1;
+	}
 
 	if (hid->quirks & HID_QUIRK_SKIP_OUTPUT_REPORTS)
 		max_report_type = HID_INPUT_REPORT;

drivers/hid/hid-logitech.c

@@ -237,7 +237,7 @@ static int lg_probe(struct hid_device *hdev, const struct hid_device_id *id)
 		goto err_free;
 	}
 
-	ret = hid_hw_start(hdev);
+	ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
 	if (ret) {
 		dev_err(&hdev->dev, "hw start failed\n");
 		goto err_free;

drivers/hid/hid-microsoft.c

@@ -154,8 +154,6 @@ static int ms_probe(struct hid_device *hdev, const struct hid_device_id *id)
 
 	hid_set_drvdata(hdev, (void *)quirks);
 
-	if (quirks & MS_HIDINPUT)
-		hdev->quirks |= HID_QUIRK_HIDINPUT;
 	if (quirks & MS_NOGET)
 		hdev->quirks |= HID_QUIRK_NOGET;
 
@@ -165,7 +163,8 @@ static int ms_probe(struct hid_device *hdev, const struct hid_device_id *id)
 		goto err_free;
 	}
 
-	ret = hid_hw_start(hdev);
+	ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT | ((quirks & MS_HIDINPUT) ?
+				HID_CONNECT_HIDINPUT_FORCE : 0));
 	if (ret) {
 		dev_err(&hdev->dev, "hw start failed\n");
 		goto err_free;

drivers/hid/hid-petalynx.c

@@ -80,7 +80,7 @@ static int pl_probe(struct hid_device *hdev, const struct hid_device_id *id)
 		goto err_free;
 	}
 
-	ret = hid_hw_start(hdev);
+	ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
 	if (ret) {
 		dev_err(&hdev->dev, "hw start failed\n");
 		goto err_free;

drivers/hid/hid-samsung.c

@@ -52,15 +52,14 @@ static int samsung_probe(struct hid_device *hdev,
 {
 	int ret;
 
-	hdev->quirks |= HID_QUIRK_HIDDEV | HID_QUIRK_IGNORE_HIDINPUT;
-
 	ret = hid_parse(hdev);
 	if (ret) {
 		dev_err(&hdev->dev, "parse failed\n");
 		goto err_free;
 	}
 
-	ret = hid_hw_start(hdev);
+	ret = hid_hw_start(hdev, (HID_CONNECT_DEFAULT & ~HID_CONNECT_HIDINPUT) |
+			HID_CONNECT_HIDDEV_FORCE);
 	if (ret) {
 		dev_err(&hdev->dev, "hw start failed\n");
 		goto err_free;

drivers/hid/hid-sony.c

@@ -57,15 +57,14 @@ static int sony_probe(struct hid_device *hdev, const struct hid_device_id *id)
 {
 	int ret;
 
-	hdev->quirks |= HID_QUIRK_HIDDEV;
-
 	ret = hid_parse(hdev);
 	if (ret) {
 		dev_err(&hdev->dev, "parse failed\n");
 		goto err_free;
 	}
 
-	ret = hid_hw_start(hdev);
+	ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT |
+			HID_CONNECT_HIDDEV_FORCE);
 	if (ret) {
 		dev_err(&hdev->dev, "hw start failed\n");
 		goto err_free;

drivers/hid/usbhid/hid-core.c

@@ -44,8 +44,6 @@
 #define DRIVER_DESC "USB HID core driver"
 #define DRIVER_LICENSE "GPL"
 
-static char *hid_types[] = {"Device", "Pointer", "Mouse", "Device", "Joystick",
-				"Gamepad", "Keyboard", "Keypad", "Multi-Axis Controller"};
 /*
  * Module parameters.
  */
@@ -670,70 +668,6 @@ static void hid_free_buffers(struct usb_device *dev, struct hid_device *hid)
 	usb_buffer_free(dev, usbhid->bufsize, usbhid->ctrlbuf, usbhid->ctrlbuf_dma);
 }
 
-static int usbhid_start_finish(struct hid_device *hid)
-{
-	struct usb_interface *intf = to_usb_interface(hid->dev.parent);
-	char path[64], *type;
-	unsigned int i;
-
-	usbhid_init_reports(hid);
-	hid_dump_device(hid);
-	if (hid->quirks & HID_QUIRK_RESET_LEDS)
-		usbhid_set_leds(hid);
-
-	if (!hidinput_connect(hid))
-		hid->claimed |= HID_CLAIMED_INPUT;
-	if (!hiddev_connect(hid))
-		hid->claimed |= HID_CLAIMED_HIDDEV;
-	if (!hidraw_connect(hid))
-		hid->claimed |= HID_CLAIMED_HIDRAW;
-
-	if (!hid->claimed) {
-		printk(KERN_ERR "HID device claimed by neither input, hiddev "
-				"nor hidraw\n");
-		return -ENODEV;
-	}
-
-	if ((hid->claimed & HID_CLAIMED_INPUT))
-		hid_ff_init(hid);
-
-	printk(KERN_INFO);
-
-	if (hid->claimed & HID_CLAIMED_INPUT)
-		printk("input");
-	if ((hid->claimed & HID_CLAIMED_INPUT) &&
-			((hid->claimed & HID_CLAIMED_HIDDEV) ||
-				hid->claimed & HID_CLAIMED_HIDRAW))
-		printk(",");
-	if (hid->claimed & HID_CLAIMED_HIDDEV)
-		printk("hiddev%d", hid->minor);
-	if ((hid->claimed & HID_CLAIMED_INPUT) &&
-			(hid->claimed & HID_CLAIMED_HIDDEV) &&
-			(hid->claimed & HID_CLAIMED_HIDRAW))
-		printk(",");
-	if (hid->claimed & HID_CLAIMED_HIDRAW)
-		printk("hidraw%d", ((struct hidraw *)hid->hidraw)->minor);
-
-	type = "Device";
-	for (i = 0; i < hid->maxcollection; i++) {
-		if (hid->collection[i].type == HID_COLLECTION_APPLICATION &&
-		    (hid->collection[i].usage & HID_USAGE_PAGE) ==
-						HID_UP_GENDESK &&
-		    (hid->collection[i].usage & 0xffff) <
-						ARRAY_SIZE(hid_types)) {
-			type = hid_types[hid->collection[i].usage & 0xffff];
-			break;
-		}
-	}
-
-	usb_make_path(interface_to_usbdev(intf), path, 63);
-
-	printk(": USB HID v%x.%02x %s [%s] on %s\n",
-		hid->version >> 8, hid->version & 0xff, type, hid->name, path);
-
-	return 0;
-}
-
 static int usbhid_parse(struct hid_device *hid)
 {
 	struct usb_interface *intf = to_usb_interface(hid->dev.parent);
@@ -923,9 +857,11 @@ static int usbhid_start(struct hid_device *hid)
 	usbhid->urbctrl->transfer_dma = usbhid->ctrlbuf_dma;
 	usbhid->urbctrl->transfer_flags |= (URB_NO_TRANSFER_DMA_MAP | URB_NO_SETUP_DMA_MAP);
 
-	ret = usbhid_start_finish(hid);
-	if (ret)
-		goto fail;
+	usbhid_init_reports(hid);
+	hid_dump_device(hid);
+
+	if (hid->quirks & HID_QUIRK_RESET_LEDS)
+		usbhid_set_leds(hid);
 
 	return 0;
 
@@ -1000,7 +936,9 @@ static int hid_probe(struct usb_interface *intf, const struct usb_device_id *id)
 	usb_set_intfdata(intf, hid);
 	hid->ll_driver = &usb_hid_driver;
 	hid->hid_output_raw_report = usbhid_output_raw_report;
+	hid->ff_init = hid_ff_init;
 #ifdef CONFIG_USB_HIDDEV
+	hid->hiddev_connect = hiddev_connect;
 	hid->hiddev_hid_event = hiddev_hid_event;
 	hid->hiddev_report_event = hiddev_report_event;
 #endif

drivers/hid/usbhid/hiddev.c

@@ -790,21 +790,23 @@ static struct usb_class_driver hiddev_class = {
 /*
  * This is where hid.c calls us to connect a hid device to the hiddev driver
  */
-int hiddev_connect(struct hid_device *hid)
+int hiddev_connect(struct hid_device *hid, unsigned int force)
 {
 	struct hiddev *hiddev;
 	struct usbhid_device *usbhid = hid->driver_data;
-	int i;
 	int retval;
 
+	if (!force) {
+		unsigned int i;
 		for (i = 0; i < hid->maxcollection; i++)
 			if (hid->collection[i].type ==
 			    HID_COLLECTION_APPLICATION &&
 			    !IS_INPUT_APPLICATION(hid->collection[i].usage))
 				break;
 
-	if (i == hid->maxcollection && (hid->quirks & HID_QUIRK_HIDDEV) == 0)
+		if (i == hid->maxcollection)
 			return -1;
+	}
 
 	if (!(hiddev = kzalloc(sizeof(struct hiddev), GFP_KERNEL)))
 		return -1;

include/linux/hid.h

@@ -246,6 +246,19 @@ struct hid_item {
 #define HID_OUTPUT_REPORT	1
 #define HID_FEATURE_REPORT	2
 
+/*
+ * HID connect requests
+ */
+
+#define HID_CONNECT_HIDINPUT		0x01
+#define HID_CONNECT_HIDINPUT_FORCE	0x02
+#define HID_CONNECT_HIDRAW		0x04
+#define HID_CONNECT_HIDDEV		0x08
+#define HID_CONNECT_HIDDEV_FORCE	0x10
+#define HID_CONNECT_FF			0x20
+#define HID_CONNECT_DEFAULT	(HID_CONNECT_HIDINPUT|HID_CONNECT_HIDRAW| \
+		HID_CONNECT_HIDDEV|HID_CONNECT_FF)
+
 /*
  * HID device quirks.
  */
@@ -258,13 +271,10 @@ struct hid_item {
 #define HID_QUIRK_INVERT			0x00000001
 #define HID_QUIRK_NOTOUCH			0x00000002
 #define HID_QUIRK_NOGET				0x00000008
-#define HID_QUIRK_HIDDEV			0x00000010
 #define HID_QUIRK_BADPAD			0x00000020
 #define HID_QUIRK_MULTI_INPUT			0x00000040
 #define HID_QUIRK_SKIP_OUTPUT_REPORTS		0x00010000
 #define HID_QUIRK_RESET_LEDS			0x00100000
-#define HID_QUIRK_HIDINPUT			0x00200000
-#define HID_QUIRK_IGNORE_HIDINPUT		0x01000000
 #define HID_QUIRK_FULLSPEED_INTERVAL		0x10000000
 
 /*
@@ -439,7 +449,11 @@ struct hid_device {							/* device report descriptor */
 
 	void *driver_data;
 
+	/* temporary hid_ff handling (until moved to the drivers) */
+	int (*ff_init)(struct hid_device *);
+
 	/* hiddev event handler */
+	int (*hiddev_connect)(struct hid_device *, unsigned int);
 	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 *);
@@ -610,7 +624,7 @@ extern void hid_unregister_driver(struct hid_driver *);
 
 extern void hidinput_hid_event(struct hid_device *, struct hid_field *, struct hid_usage *, __s32);
 extern void hidinput_report_event(struct hid_device *hid, struct hid_report *report);
-extern int hidinput_connect(struct hid_device *);
+extern int hidinput_connect(struct hid_device *hid, unsigned int force);
 extern void hidinput_disconnect(struct hid_device *);
 
 int hid_set_field(struct hid_field *, unsigned, __s32);
@@ -619,6 +633,7 @@ int hidinput_find_field(struct hid_device *hid, unsigned int type, unsigned int
 void hid_output_report(struct hid_report *report, __u8 *data);
 struct hid_device *hid_allocate_device(void);
 int hid_parse_report(struct hid_device *hid, __u8 *start, unsigned size);
+int hid_connect(struct hid_device *hid, unsigned int connect_mask);
 
 /**
  * hid_map_usage - map usage input bits
@@ -700,14 +715,22 @@ static inline int __must_check hid_parse(struct hid_device *hdev)
  * hid_hw_start - start underlaying HW
  *
  * @hdev: hid device
+ * @connect_mask: which outputs to connect, see HID_CONNECT_*
  *
  * Call this in probe function *after* hid_parse. This will setup HW buffers
  * and start the device (if not deffered to device open). hid_hw_stop must be
  * called if this was successfull.
  */
-static inline int __must_check hid_hw_start(struct hid_device *hdev)
+static inline int __must_check hid_hw_start(struct hid_device *hdev,
+		unsigned int connect_mask)
 {
-	return hdev->ll_driver->start(hdev);
+	int ret = hdev->ll_driver->start(hdev);
+	if (ret || !connect_mask)
+		return ret;
+	ret = hid_connect(hdev, connect_mask);
+	if (ret)
+		hdev->ll_driver->stop(hdev);
+	return ret;
 }
 
 /**
@@ -749,7 +772,7 @@ static inline int hid_pidff_init(struct hid_device *hid) { return -ENODEV; }
 #endif
 
 #else
-static inline int hid_ff_init(struct hid_device *hid) { return -1; }
+#define hid_ff_init	NULL
 #endif
 
 #ifdef CONFIG_HID_DEBUG

include/linux/hiddev.h

@@ -217,7 +217,7 @@ struct hid_field;
 struct hid_report;
 
 #ifdef CONFIG_USB_HIDDEV
-int hiddev_connect(struct hid_device *);
+int hiddev_connect(struct hid_device *hid, unsigned int force);
 void hiddev_disconnect(struct hid_device *);
 void hiddev_hid_event(struct hid_device *hid, struct hid_field *field,
 		      struct hid_usage *usage, __s32 value);
@@ -225,7 +225,9 @@ void hiddev_report_event(struct hid_device *hid, struct hid_report *report);
 int __init hiddev_init(void);
 void hiddev_exit(void);
 #else
-static inline int hiddev_connect(struct hid_device *hid) { return -1; }
+static inline int hiddev_connect(struct hid_device *hid,
+		unsigned int force)
+{ return -1; }
 static inline void hiddev_disconnect(struct hid_device *hid) { }
 static inline void hiddev_hid_event(struct hid_device *hid, struct hid_field *field,
 		      struct hid_usage *usage, __s32 value) { }

net/bluetooth/hidp/core.c

@@ -724,9 +724,6 @@ static int hidp_start(struct hid_device *hid)
 			report_list, list)
 		hidp_send_report(session, report);
 
-	if (hidinput_connect(hid) == 0)
-		hid->claimed |= HID_CLAIMED_INPUT;
-
 	return 0;
 }