Merge branches 'for-3.15/multitouch', 'for-3.15/sony' and 'for-3.15/uhid' into for-linus

Documentation/hid/uhid.txt

@@ -93,6 +93,11 @@ the request was handled successfully.
   event to the kernel. The payload is of type struct uhid_create_req and
   contains information about your device. You can start I/O now.
 
+  UHID_CREATE2:
+  Same as UHID_CREATE, but the HID report descriptor data (rd_data) is an array
+  inside struct uhid_create2_req, instead of a pointer to a separate array.
+  Enables use from languages that don't support pointers, e.g. Python.
+
   UHID_DESTROY:
   This destroys the internal HID device. No further I/O will be accepted. There
   may still be pending messages that you can receive with read() but no further
@@ -105,6 +110,12 @@ the request was handled successfully.
   contains a data-payload. This is the raw data that you read from your device.
   The kernel will parse the HID reports and react on it.
 
+  UHID_INPUT2:
+  Same as UHID_INPUT, but the data array is the last field of uhid_input2_req.
+  Enables userspace to write only the required bytes to kernel (ev.type +
+  ev.u.input2.size + the part of the data array that matters), instead of
+  the entire struct uhid_input2_req.
+
   UHID_FEATURE_ANSWER:
   If you receive a UHID_FEATURE request you must answer with this request. You
   must copy the "id" field from the request into the answer. Set the "err" field

drivers/hid/hid-ids.h

@@ -67,6 +67,9 @@
 #define USB_VENDOR_ID_ALPS		0x0433
 #define USB_DEVICE_ID_IBM_GAMEPAD	0x1101
 
+#define USB_VENDOR_ID_ANTON		0x1130
+#define USB_DEVICE_ID_ANTON_TOUCH_PAD	0x3101
+
 #define USB_VENDOR_ID_APPLE		0x05ac
 #define USB_DEVICE_ID_APPLE_MIGHTYMOUSE	0x0304
 #define USB_DEVICE_ID_APPLE_MAGICMOUSE	0x030d

drivers/hid/hid-sony.c

@@ -863,7 +863,7 @@ static void sixaxis_parse_report(struct sony_sc *sc, __u8 *rd, int size)
 		battery_capacity = sixaxis_battery_capacity[index];
 		battery_charging = 0;
 	}
-	cable_state = !((rd[31] >> 4) & 0x01);
+	cable_state = !(rd[31] & 0x04);
 
 	spin_lock_irqsave(&sc->lock, flags);
 	sc->cable_state = cable_state;
@@ -1632,11 +1632,21 @@ static int sony_probe(struct hid_device *hdev, const struct hid_device_id *id)
 		sc->worker_initialized = 1;
 		INIT_WORK(&sc->state_worker, sixaxis_state_worker);
 	} else if (sc->quirks & SIXAXIS_CONTROLLER_BT) {
+		/*
+		 * The Sixaxis wants output reports sent on the ctrl endpoint
+		 * when connected via Bluetooth.
+		 */
+		hdev->quirks |= HID_QUIRK_NO_OUTPUT_REPORTS_ON_INTR_EP;
 		ret = sixaxis_set_operational_bt(hdev);
 		sc->worker_initialized = 1;
 		INIT_WORK(&sc->state_worker, sixaxis_state_worker);
 	} else if (sc->quirks & DUALSHOCK4_CONTROLLER) {
 		if (sc->quirks & DUALSHOCK4_CONTROLLER_BT) {
+			/*
+			 * The DualShock 4 wants output reports sent on the ctrl
+			 * endpoint when connected via Bluetooth.
+			 */
+			hdev->quirks |= HID_QUIRK_NO_OUTPUT_REPORTS_ON_INTR_EP;
 			ret = dualshock4_set_operational_bt(hdev);
 			if (ret < 0) {
 				hid_err(hdev, "failed to set the Dualshock 4 operational mode\n");

drivers/hid/uhid.c

@@ -428,6 +428,67 @@ static int uhid_dev_create(struct uhid_device *uhid,
 	return ret;
 }
 
+static int uhid_dev_create2(struct uhid_device *uhid,
+			    const struct uhid_event *ev)
+{
+	struct hid_device *hid;
+	int ret;
+
+	if (uhid->running)
+		return -EALREADY;
+
+	uhid->rd_size = ev->u.create2.rd_size;
+	if (uhid->rd_size <= 0 || uhid->rd_size > HID_MAX_DESCRIPTOR_SIZE)
+		return -EINVAL;
+
+	uhid->rd_data = kmalloc(uhid->rd_size, GFP_KERNEL);
+	if (!uhid->rd_data)
+		return -ENOMEM;
+
+	memcpy(uhid->rd_data, ev->u.create2.rd_data, uhid->rd_size);
+
+	hid = hid_allocate_device();
+	if (IS_ERR(hid)) {
+		ret = PTR_ERR(hid);
+		goto err_free;
+	}
+
+	strncpy(hid->name, ev->u.create2.name, 127);
+	hid->name[127] = 0;
+	strncpy(hid->phys, ev->u.create2.phys, 63);
+	hid->phys[63] = 0;
+	strncpy(hid->uniq, ev->u.create2.uniq, 63);
+	hid->uniq[63] = 0;
+
+	hid->ll_driver = &uhid_hid_driver;
+	hid->bus = ev->u.create2.bus;
+	hid->vendor = ev->u.create2.vendor;
+	hid->product = ev->u.create2.product;
+	hid->version = ev->u.create2.version;
+	hid->country = ev->u.create2.country;
+	hid->driver_data = uhid;
+	hid->dev.parent = uhid_misc.this_device;
+
+	uhid->hid = hid;
+	uhid->running = true;
+
+	ret = hid_add_device(hid);
+	if (ret) {
+		hid_err(hid, "Cannot register HID device\n");
+		goto err_hid;
+	}
+
+	return 0;
+
+err_hid:
+	hid_destroy_device(hid);
+	uhid->hid = NULL;
+	uhid->running = false;
+err_free:
+	kfree(uhid->rd_data);
+	return ret;
+}
+
 static int uhid_dev_destroy(struct uhid_device *uhid)
 {
 	if (!uhid->running)
@@ -456,6 +517,17 @@ static int uhid_dev_input(struct uhid_device *uhid, struct uhid_event *ev)
 	return 0;
 }
 
+static int uhid_dev_input2(struct uhid_device *uhid, struct uhid_event *ev)
+{
+	if (!uhid->running)
+		return -EINVAL;
+
+	hid_input_report(uhid->hid, HID_INPUT_REPORT, ev->u.input2.data,
+			 min_t(size_t, ev->u.input2.size, UHID_DATA_MAX), 0);
+
+	return 0;
+}
+
 static int uhid_dev_feature_answer(struct uhid_device *uhid,
 				   struct uhid_event *ev)
 {
@@ -592,12 +664,18 @@ static ssize_t uhid_char_write(struct file *file, const char __user *buffer,
 	case UHID_CREATE:
 		ret = uhid_dev_create(uhid, &uhid->input_buf);
 		break;
+	case UHID_CREATE2:
+		ret = uhid_dev_create2(uhid, &uhid->input_buf);
+		break;
 	case UHID_DESTROY:
 		ret = uhid_dev_destroy(uhid);
 		break;
 	case UHID_INPUT:
 		ret = uhid_dev_input(uhid, &uhid->input_buf);
 		break;
+	case UHID_INPUT2:
+		ret = uhid_dev_input2(uhid, &uhid->input_buf);
+		break;
 	case UHID_FEATURE_ANSWER:
 		ret = uhid_dev_feature_answer(uhid, &uhid->input_buf);
 		break;

include/linux/hid.h

@@ -201,6 +201,7 @@ struct hid_item {
 #define HID_GD_VBRZ		0x00010045
 #define HID_GD_VNO		0x00010046
 #define HID_GD_FEATURE		0x00010047
+#define HID_GD_SYSTEM_CONTROL	0x00010080
 #define HID_GD_UP		0x00010090
 #define HID_GD_DOWN		0x00010091
 #define HID_GD_RIGHT		0x00010092
@@ -208,6 +209,8 @@ struct hid_item {
 
 #define HID_DC_BATTERYSTRENGTH	0x00060020
 
+#define HID_CP_CONSUMER_CONTROL	0x000c0001
+
 #define HID_DG_DIGITIZER	0x000d0001
 #define HID_DG_PEN		0x000d0002
 #define HID_DG_LIGHTPEN		0x000d0003

include/uapi/linux/uhid.h

@@ -21,6 +21,7 @@
 
 #include <linux/input.h>
 #include <linux/types.h>
+#include <linux/hid.h>
 
 enum uhid_event_type {
 	UHID_CREATE,
@@ -34,6 +35,8 @@ enum uhid_event_type {
 	UHID_INPUT,
 	UHID_FEATURE,
 	UHID_FEATURE_ANSWER,
+	UHID_CREATE2,
+	UHID_INPUT2,
 };
 
 struct uhid_create_req {
@@ -50,6 +53,19 @@ struct uhid_create_req {
 	__u32 country;
 } __attribute__((__packed__));
 
+struct uhid_create2_req {
+	__u8 name[128];
+	__u8 phys[64];
+	__u8 uniq[64];
+	__u16 rd_size;
+	__u16 bus;
+	__u32 vendor;
+	__u32 product;
+	__u32 version;
+	__u32 country;
+	__u8 rd_data[HID_MAX_DESCRIPTOR_SIZE];
+} __attribute__((__packed__));
+
 #define UHID_DATA_MAX 4096
 
 enum uhid_report_type {
@@ -63,6 +79,11 @@ struct uhid_input_req {
 	__u16 size;
 } __attribute__((__packed__));
 
+struct uhid_input2_req {
+	__u16 size;
+	__u8 data[UHID_DATA_MAX];
+} __attribute__((__packed__));
+
 struct uhid_output_req {
 	__u8 data[UHID_DATA_MAX];
 	__u16 size;
@@ -100,6 +121,8 @@ struct uhid_event {
 		struct uhid_output_ev_req output_ev;
 		struct uhid_feature_req feature;
 		struct uhid_feature_answer_req feature_answer;
+		struct uhid_create2_req create2;
+		struct uhid_input2_req input2;
 	} u;
 } __attribute__((__packed__));