Merge branch 'for-3.15/hid-core-ll-transport-cleanup' into for-3.15/hid-cp2112

drivers/hid/hid-core.c

@@ -1248,6 +1248,11 @@ void hid_output_report(struct hid_report *report, __u8 *data)
 }
 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;
+}
+
 /*
  * Allocator for buffer that is going to be passed to hid_output_report()
  */
@@ -1258,7 +1263,7 @@ u8 *hid_alloc_report_buf(struct hid_report *report, gfp_t flags)
 	 * of implement() working on 8 byte chunks
 	 */
 
-	int len = ((report->size - 1) >> 3) + 1 + (report->id > 0) + 7;
+	int len = hid_report_len(report);
 
 	return kmalloc(len, flags);
 }
@@ -1314,6 +1319,44 @@ static struct hid_report *hid_get_report(struct hid_report_enum *report_enum,
 	return report;
 }
 
+/*
+ * Implement a generic .request() callback, using .raw_request()
+ * DO NOT USE in hid drivers directly, but through hid_hw_request instead.
+ */
+void __hid_request(struct hid_device *hid, struct hid_report *report,
+		int reqtype)
+{
+	char *buf;
+	int ret;
+	int len;
+
+	if (!hid->ll_driver->raw_request)
+		return;
+
+	buf = hid_alloc_report_buf(report, GFP_KERNEL);
+	if (!buf)
+		return;
+
+	len = hid_report_len(report);
+
+	if (reqtype == HID_REQ_SET_REPORT)
+		hid_output_report(report, buf);
+
+	ret = hid->ll_driver->raw_request(hid, report->id, buf, len,
+					  report->type, reqtype);
+	if (ret < 0) {
+		dbg_hid("unable to complete request: %d\n", ret);
+		goto out;
+	}
+
+	if (reqtype == HID_REQ_GET_REPORT)
+		hid_input_report(hid, report->type, buf, ret, 0);
+
+out:
+	kfree(buf);
+}
+EXPORT_SYMBOL_GPL(__hid_request);
+
 int hid_report_raw_event(struct hid_device *hid, int type, u8 *data, int size,
 		int interrupt)
 {

drivers/hid/hid-input.c

@@ -350,9 +350,9 @@ static int hidinput_get_battery_property(struct power_supply *psy,
 			ret = -ENOMEM;
 			break;
 		}
-		ret = dev->hid_get_raw_report(dev, dev->battery_report_id,
-					      buf, 2,
-					      dev->battery_report_type);
+		ret = hid_hw_raw_request(dev, dev->battery_report_id, buf, 2,
+					 dev->battery_report_type,
+					 HID_REQ_GET_REPORT);
 
 		if (ret != 2) {
 			ret = -ENODATA;
@@ -1184,7 +1184,7 @@ static void hidinput_led_worker(struct work_struct *work)
 
 	hid_output_report(report, buf);
 	/* synchronous output report */
-	hid->hid_output_raw_report(hid, buf, len, HID_OUTPUT_REPORT);
+	hid_output_raw_report(hid, buf, len, HID_OUTPUT_REPORT);
 	kfree(buf);
 }
 
@@ -1263,9 +1263,7 @@ static struct hid_input *hidinput_allocate(struct hid_device *hid)
 	}
 
 	input_set_drvdata(input_dev, hid);
-	if (hid->ll_driver->hidinput_input_event)
-		input_dev->event = hid->ll_driver->hidinput_input_event;
-	else if (hid->ll_driver->request || hid->hid_output_raw_report)
+	if (hid->ll_driver->request || hid->hid_output_raw_report)
 		input_dev->event = hidinput_input_event;
 	input_dev->open = hidinput_open;
 	input_dev->close = hidinput_close;

drivers/hid/hid-lg.c

@@ -692,7 +692,8 @@ static int lg_probe(struct hid_device *hdev, const struct hid_device_id *id)
 	if (hdev->product == USB_DEVICE_ID_LOGITECH_WII_WHEEL) {
 		unsigned char buf[] = { 0x00, 0xAF,  0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
 
-		ret = hdev->hid_output_raw_report(hdev, buf, sizeof(buf), HID_FEATURE_REPORT);
+		ret = hid_hw_raw_request(hdev, buf[0], buf, sizeof(buf),
+					HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
 
 		if (ret >= 0) {
 			/* insert a little delay of 10 jiffies ~ 40ms */
@@ -704,7 +705,8 @@ static int lg_probe(struct hid_device *hdev, const struct hid_device_id *id)
 			buf[1] = 0xB2;
 			get_random_bytes(&buf[2], 2);
 
-			ret = hdev->hid_output_raw_report(hdev, buf, sizeof(buf), HID_FEATURE_REPORT);
+			ret = hid_hw_raw_request(hdev, buf[0], buf, sizeof(buf),
+					HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
 		}
 	}
 

drivers/hid/hid-logitech-dj.c

@@ -44,14 +44,6 @@ static const char kbd_descriptor[] = {
 	0x19, 0xE0,		/*   USAGE_MINIMUM (Left Control)   */
 	0x29, 0xE7,		/*   USAGE_MAXIMUM (Right GUI)      */
 	0x81, 0x02,		/*   INPUT (Data,Var,Abs)       */
-	0x95, 0x05,		/*   REPORT COUNT (5)           */
-	0x05, 0x08,		/*   USAGE PAGE (LED page)      */
-	0x19, 0x01,		/*   USAGE MINIMUM (1)          */
-	0x29, 0x05,		/*   USAGE MAXIMUM (5)          */
-	0x91, 0x02,		/*   OUTPUT (Data, Variable, Absolute)  */
-	0x95, 0x01,		/*   REPORT COUNT (1)           */
-	0x75, 0x03,		/*   REPORT SIZE (3)            */
-	0x91, 0x01,		/*   OUTPUT (Constant)          */
 	0x95, 0x06,		/*   REPORT_COUNT (6)           */
 	0x75, 0x08,		/*   REPORT_SIZE (8)            */
 	0x15, 0x00,		/*   LOGICAL_MINIMUM (0)        */
@@ -60,6 +52,18 @@ static const char kbd_descriptor[] = {
 	0x19, 0x00,		/*   USAGE_MINIMUM (no event)       */
 	0x2A, 0xFF, 0x00,	/*   USAGE_MAXIMUM (reserved)       */
 	0x81, 0x00,		/*   INPUT (Data,Ary,Abs)       */
+	0x85, 0x0e,		/* REPORT_ID (14)               */
+	0x05, 0x08,		/*   USAGE PAGE (LED page)      */
+	0x95, 0x05,		/*   REPORT COUNT (5)           */
+	0x75, 0x01,		/*   REPORT SIZE (1)            */
+	0x15, 0x00,		/*   LOGICAL_MINIMUM (0)        */
+	0x25, 0x01,		/*   LOGICAL_MAXIMUM (1)        */
+	0x19, 0x01,		/*   USAGE MINIMUM (1)          */
+	0x29, 0x05,		/*   USAGE MAXIMUM (5)          */
+	0x91, 0x02,		/*   OUTPUT (Data, Variable, Absolute)  */
+	0x95, 0x01,		/*   REPORT COUNT (1)           */
+	0x75, 0x03,		/*   REPORT SIZE (3)            */
+	0x91, 0x01,		/*   OUTPUT (Constant)          */
 	0xC0
 };
 
@@ -189,9 +193,6 @@ static const u8 hid_reportid_size_map[NUMBER_OF_HID_REPORTS] = {
 
 static struct hid_ll_driver logi_dj_ll_driver;
 
-static int logi_dj_output_hidraw_report(struct hid_device *hid, u8 * buf,
-					size_t count,
-					unsigned char report_type);
 static int logi_dj_recv_query_paired_devices(struct dj_receiver_dev *djrcv_dev);
 
 static void logi_dj_recv_destroy_djhid_device(struct dj_receiver_dev *djrcv_dev,
@@ -258,7 +259,6 @@ static void logi_dj_recv_add_djhid_device(struct dj_receiver_dev *djrcv_dev,
 	}
 
 	dj_hiddev->ll_driver = &logi_dj_ll_driver;
-	dj_hiddev->hid_output_raw_report = logi_dj_output_hidraw_report;
 
 	dj_hiddev->dev.parent = &djrcv_hdev->dev;
 	dj_hiddev->bus = BUS_USB;
@@ -540,14 +540,35 @@ static void logi_dj_ll_close(struct hid_device *hid)
 	dbg_hid("%s:%s\n", __func__, hid->phys);
 }
 
-static int logi_dj_output_hidraw_report(struct hid_device *hid, u8 * buf,
-					size_t count,
-					unsigned char report_type)
+static int logi_dj_ll_raw_request(struct hid_device *hid,
+				  unsigned char reportnum, __u8 *buf,
+				  size_t count, unsigned char report_type,
+				  int reqtype)
 {
-	/* Called by hid raw to send data */
-	dbg_hid("%s\n", __func__);
+	struct dj_device *djdev = hid->driver_data;
+	struct dj_receiver_dev *djrcv_dev = djdev->dj_receiver_dev;
+	u8 *out_buf;
+	int ret;
 
-	return 0;
+	if (buf[0] != REPORT_TYPE_LEDS)
+		return -EINVAL;
+
+	out_buf = kzalloc(DJREPORT_SHORT_LENGTH, GFP_ATOMIC);
+	if (!out_buf)
+		return -ENOMEM;
+
+	if (count < DJREPORT_SHORT_LENGTH - 2)
+		count = DJREPORT_SHORT_LENGTH - 2;
+
+	out_buf[0] = REPORT_ID_DJ_SHORT;
+	out_buf[1] = djdev->device_index;
+	memcpy(out_buf + 2, buf, count);
+
+	ret = hid_hw_raw_request(djrcv_dev->hdev, out_buf[0], out_buf,
+		DJREPORT_SHORT_LENGTH, report_type, reqtype);
+
+	kfree(out_buf);
+	return ret;
 }
 
 static void rdcat(char *rdesc, unsigned int *rsize, const char *data, unsigned int size)
@@ -613,58 +634,6 @@ static int logi_dj_ll_parse(struct hid_device *hid)
 	return retval;
 }
 
-static int logi_dj_ll_input_event(struct input_dev *dev, unsigned int type,
-				  unsigned int code, int value)
-{
-	/* Sent by the input layer to handle leds and Force Feedback */
-	struct hid_device *dj_hiddev = input_get_drvdata(dev);
-	struct dj_device *dj_dev = dj_hiddev->driver_data;
-
-	struct dj_receiver_dev *djrcv_dev =
-	    dev_get_drvdata(dj_hiddev->dev.parent);
-	struct hid_device *dj_rcv_hiddev = djrcv_dev->hdev;
-	struct hid_report_enum *output_report_enum;
-
-	struct hid_field *field;
-	struct hid_report *report;
-	unsigned char *data;
-	int offset;
-
-	dbg_hid("%s: %s, type:%d | code:%d | value:%d\n",
-		__func__, dev->phys, type, code, value);
-
-	if (type != EV_LED)
-		return -1;
-
-	offset = hidinput_find_field(dj_hiddev, type, code, &field);
-
-	if (offset == -1) {
-		dev_warn(&dev->dev, "event field not found\n");
-		return -1;
-	}
-	hid_set_field(field, offset, value);
-
-	data = hid_alloc_report_buf(field->report, GFP_ATOMIC);
-	if (!data) {
-		dev_warn(&dev->dev, "failed to allocate report buf memory\n");
-		return -1;
-	}
-
-	hid_output_report(field->report, &data[0]);
-
-	output_report_enum = &dj_rcv_hiddev->report_enum[HID_OUTPUT_REPORT];
-	report = output_report_enum->report_id_hash[REPORT_ID_DJ_SHORT];
-	hid_set_field(report->field[0], 0, dj_dev->device_index);
-	hid_set_field(report->field[0], 1, REPORT_TYPE_LEDS);
-	hid_set_field(report->field[0], 2, data[1]);
-
-	hid_hw_request(dj_rcv_hiddev, report, HID_REQ_SET_REPORT);
-
-	kfree(data);
-
-	return 0;
-}
-
 static int logi_dj_ll_start(struct hid_device *hid)
 {
 	dbg_hid("%s\n", __func__);
@@ -683,7 +652,7 @@ static struct hid_ll_driver logi_dj_ll_driver = {
 	.stop = logi_dj_ll_stop,
 	.open = logi_dj_ll_open,
 	.close = logi_dj_ll_close,
-	.hidinput_input_event = logi_dj_ll_input_event,
+	.raw_request = logi_dj_ll_raw_request,
 };
 
 

drivers/hid/hid-magicmouse.c

@@ -538,8 +538,8 @@ static int magicmouse_probe(struct hid_device *hdev,
 	 * but there seems to be no other way of switching the mode.
 	 * Thus the super-ugly hacky success check below.
 	 */
-	ret = hdev->hid_output_raw_report(hdev, feature, sizeof(feature),
-			HID_FEATURE_REPORT);
+	ret = hid_hw_raw_request(hdev, feature[0], feature, sizeof(feature),
+				HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
 	if (ret != -EIO && ret != sizeof(feature)) {
 		hid_err(hdev, "unable to request touch data (%d)\n", ret);
 		goto err_stop_hw;

drivers/hid/hid-sony.c

@@ -706,7 +706,8 @@ static int sixaxis_set_operational_usb(struct hid_device *hdev)
 	if (!buf)
 		return -ENOMEM;
 
-	ret = hdev->hid_get_raw_report(hdev, 0xf2, buf, 17, HID_FEATURE_REPORT);
+	ret = hid_hw_raw_request(hdev, 0xf2, buf, 17, HID_FEATURE_REPORT,
+				 HID_REQ_GET_REPORT);
 
 	if (ret < 0)
 		hid_err(hdev, "can't set operational mode\n");
@@ -719,7 +720,8 @@ static int sixaxis_set_operational_usb(struct hid_device *hdev)
 static int sixaxis_set_operational_bt(struct hid_device *hdev)
 {
 	unsigned char buf[] = { 0xf4,  0x42, 0x03, 0x00, 0x00 };
-	return hdev->hid_output_raw_report(hdev, buf, sizeof(buf), HID_FEATURE_REPORT);
+	return hid_hw_raw_request(hdev, buf[0], buf, sizeof(buf),
+				  HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
 }
 
 static void buzz_set_leds(struct hid_device *hdev, const __u8 *leds)
@@ -941,8 +943,7 @@ static void sixaxis_state_worker(struct work_struct *work)
 	buf[10] |= sc->led_state[2] << 3;
 	buf[10] |= sc->led_state[3] << 4;
 
-	sc->hdev->hid_output_raw_report(sc->hdev, buf, sizeof(buf),
-					HID_OUTPUT_REPORT);
+	hid_output_raw_report(sc->hdev, buf, sizeof(buf), HID_OUTPUT_REPORT);
 }
 
 static void dualshock4_state_worker(struct work_struct *work)

drivers/hid/hid-thingm.c

@@ -48,8 +48,8 @@ static int blink1_send_command(struct blink1_data *data,
 			buf[0], buf[1], buf[2], buf[3], buf[4],
 			buf[5], buf[6], buf[7], buf[8]);
 
-	ret = data->hdev->hid_output_raw_report(data->hdev, buf,
-			BLINK1_CMD_SIZE, HID_FEATURE_REPORT);
+	ret = hid_hw_raw_request(data->hdev, buf[0], buf, BLINK1_CMD_SIZE,
+				 HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
 
 	return ret < 0 ? ret : 0;
 }

drivers/hid/hid-wacom.c

@@ -128,8 +128,8 @@ static void wacom_set_image(struct hid_device *hdev, const char *image,
 
 	rep_data[0] = WAC_CMD_ICON_START_STOP;
 	rep_data[1] = 0;
-	ret = hdev->hid_output_raw_report(hdev, rep_data, 2,
-				HID_FEATURE_REPORT);
+	ret = hid_hw_raw_request(hdev, rep_data[0], rep_data, 2,
+				 HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
 	if (ret < 0)
 		goto err;
 
@@ -143,15 +143,15 @@ static void wacom_set_image(struct hid_device *hdev, const char *image,
 			rep_data[j + 3] = p[(i << 6) + j];
 
 		rep_data[2] = i;
-		ret = hdev->hid_output_raw_report(hdev, rep_data, 67,
-					HID_FEATURE_REPORT);
+		ret = hid_hw_raw_request(hdev, rep_data[0], rep_data, 67,
+					HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
 	}
 
 	rep_data[0] = WAC_CMD_ICON_START_STOP;
 	rep_data[1] = 0;
 
-	ret = hdev->hid_output_raw_report(hdev, rep_data, 2,
-				HID_FEATURE_REPORT);
+	ret = hid_hw_raw_request(hdev, rep_data[0], rep_data, 2,
+				 HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
 
 err:
 	return;
@@ -183,7 +183,8 @@ static void wacom_leds_set_brightness(struct led_classdev *led_dev,
 		buf[3] = value;
 		/* use fixed brightness for OLEDs */
 		buf[4] = 0x08;
-		hdev->hid_output_raw_report(hdev, buf, 9, HID_FEATURE_REPORT);
+		hid_hw_raw_request(hdev, buf[0], buf, 9, HID_FEATURE_REPORT,
+				   HID_REQ_SET_REPORT);
 		kfree(buf);
 	}
 
@@ -339,8 +340,8 @@ static void wacom_set_features(struct hid_device *hdev, u8 speed)
 		rep_data[0] = 0x03 ; rep_data[1] = 0x00;
 		limit = 3;
 		do {
-			ret = hdev->hid_output_raw_report(hdev, rep_data, 2,
-					HID_FEATURE_REPORT);
+			ret = hid_hw_raw_request(hdev, rep_data[0], rep_data, 2,
+					HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
 		} while (ret < 0 && limit-- > 0);
 
 		if (ret >= 0) {
@@ -352,8 +353,9 @@ static void wacom_set_features(struct hid_device *hdev, u8 speed)
 			rep_data[1] = 0x00;
 			limit = 3;
 			do {
-				ret = hdev->hid_output_raw_report(hdev,
-					rep_data, 2, HID_FEATURE_REPORT);
+				ret = hid_hw_raw_request(hdev, rep_data[0],
+					rep_data, 2, HID_FEATURE_REPORT,
+					HID_REQ_SET_REPORT);
 			} while (ret < 0 && limit-- > 0);
 
 			if (ret >= 0) {
@@ -378,8 +380,8 @@ static void wacom_set_features(struct hid_device *hdev, u8 speed)
 		rep_data[0] = 0x03;
 		rep_data[1] = wdata->features;
 
-		ret = hdev->hid_output_raw_report(hdev, rep_data, 2,
-					HID_FEATURE_REPORT);
+		ret = hid_hw_raw_request(hdev, rep_data[0], rep_data, 2,
+				HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
 		if (ret >= 0)
 			wdata->high_speed = speed;
 		break;

drivers/hid/hid-wiimote-core.c

@@ -28,14 +28,14 @@ static int wiimote_hid_send(struct hid_device *hdev, __u8 *buffer,
 	__u8 *buf;
 	int ret;
 
-	if (!hdev->hid_output_raw_report)
+	if (!hdev->ll_driver->output_report)
 		return -ENODEV;
 
 	buf = kmemdup(buffer, count, GFP_KERNEL);
 	if (!buf)
 		return -ENOMEM;
 
-	ret = hdev->hid_output_raw_report(hdev, buf, count, HID_OUTPUT_REPORT);
+	ret = hid_hw_output_report(hdev, buf, count);
 
 	kfree(buf);
 	return ret;

drivers/hid/hidraw.c

@@ -153,7 +153,7 @@ static ssize_t hidraw_send_report(struct file *file, const char __user *buffer,
 		goto out_free;
 	}
 
-	ret = dev->hid_output_raw_report(dev, buf, count, report_type);
+	ret = hid_output_raw_report(dev, buf, count, report_type);
 out_free:
 	kfree(buf);
 out:
@@ -189,7 +189,7 @@ static ssize_t hidraw_get_report(struct file *file, char __user *buffer, size_t
 
 	dev = hidraw_table[minor]->hid;
 
-	if (!dev->hid_get_raw_report) {
+	if (!dev->ll_driver->raw_request) {
 		ret = -ENODEV;
 		goto out;
 	}
@@ -216,14 +216,15 @@ static ssize_t hidraw_get_report(struct file *file, char __user *buffer, size_t
 
 	/*
 	 * Read the first byte from the user. This is the report number,
-	 * which is passed to dev->hid_get_raw_report().
+	 * which is passed to hid_hw_raw_request().
 	 */
 	if (copy_from_user(&report_number, buffer, 1)) {
 		ret = -EFAULT;
 		goto out_free;
 	}
 
-	ret = dev->hid_get_raw_report(dev, report_number, buf, count, report_type);
+	ret = hid_hw_raw_request(dev, report_number, buf, count, report_type,
+				 HID_REQ_GET_REPORT);
 
 	if (ret < 0)
 		goto out_free;

drivers/hid/i2c-hid/i2c-hid.c

@@ -256,18 +256,27 @@ static int i2c_hid_get_report(struct i2c_client *client, u8 reportType,
 	return 0;
 }
 
-static int i2c_hid_set_report(struct i2c_client *client, u8 reportType,
-		u8 reportID, unsigned char *buf, size_t data_len)
+/**
+ * i2c_hid_set_or_send_report: forward an incoming report to the device
+ * @client: the i2c_client of the device
+ * @reportType: 0x03 for HID_FEATURE_REPORT ; 0x02 for HID_OUTPUT_REPORT
+ * @reportID: the report ID
+ * @buf: the actual data to transfer, without the report ID
+ * @len: size of buf
+ * @use_data: true: use SET_REPORT HID command, false: send plain OUTPUT report
+ */
+static int i2c_hid_set_or_send_report(struct i2c_client *client, u8 reportType,
+		u8 reportID, unsigned char *buf, size_t data_len, bool use_data)
 {
 	struct i2c_hid *ihid = i2c_get_clientdata(client);
 	u8 *args = ihid->argsbuf;
-	const struct i2c_hid_cmd * hidcmd = &hid_set_report_cmd;
+	const struct i2c_hid_cmd *hidcmd;
 	int ret;
 	u16 dataRegister = le16_to_cpu(ihid->hdesc.wDataRegister);
 	u16 outputRegister = le16_to_cpu(ihid->hdesc.wOutputRegister);
 	u16 maxOutputLength = le16_to_cpu(ihid->hdesc.wMaxOutputLength);
 
-	/* hidraw already checked that data_len < HID_MAX_BUFFER_SIZE */
+	/* hid_hw_* already checked that data_len < HID_MAX_BUFFER_SIZE */
 	u16 size =	2			/* size */ +
 			(reportID ? 1 : 0)	/* reportID */ +
 			data_len		/* buf */;
@@ -278,6 +287,9 @@ static int i2c_hid_set_report(struct i2c_client *client, u8 reportType,
 
 	i2c_hid_dbg(ihid, "%s\n", __func__);
 
+	if (!use_data && maxOutputLength == 0)
+		return -ENOSYS;
+
 	if (reportID >= 0x0F) {
 		args[index++] = reportID;
 		reportID = 0x0F;
@@ -287,9 +299,10 @@ static int i2c_hid_set_report(struct i2c_client *client, u8 reportType,
 	 * use the data register for feature reports or if the device does not
 	 * support the output register
 	 */
-	if (reportType == 0x03 || maxOutputLength == 0) {
+	if (use_data) {
 		args[index++] = dataRegister & 0xFF;
 		args[index++] = dataRegister >> 8;
+		hidcmd = &hid_set_report_cmd;
 	} else {
 		args[index++] = outputRegister & 0xFF;
 		args[index++] = outputRegister >> 8;
@@ -550,7 +563,7 @@ static int i2c_hid_get_raw_report(struct hid_device *hid,
 }
 
 static int i2c_hid_output_raw_report(struct hid_device *hid, __u8 *buf,
-		size_t count, unsigned char report_type)
+		size_t count, unsigned char report_type, bool use_data)
 {
 	struct i2c_client *client = hid->driver_data;
 	int report_id = buf[0];
@@ -564,9 +577,9 @@ static int i2c_hid_output_raw_report(struct hid_device *hid, __u8 *buf,
 		count--;
 	}
 
-	ret = i2c_hid_set_report(client,
+	ret = i2c_hid_set_or_send_report(client,
 				report_type == HID_FEATURE_REPORT ? 0x03 : 0x02,
-				report_id, buf, count);
+				report_id, buf, count, use_data);
 
 	if (report_id && ret >= 0)
 		ret++; /* add report_id to the number of transfered bytes */
@@ -574,34 +587,40 @@ static int i2c_hid_output_raw_report(struct hid_device *hid, __u8 *buf,
 	return ret;
 }
 
-static void i2c_hid_request(struct hid_device *hid, struct hid_report *rep,
-		int reqtype)
+static int __i2c_hid_output_raw_report(struct hid_device *hid, __u8 *buf,
+		size_t count, unsigned char report_type)
 {
 	struct i2c_client *client = hid->driver_data;
-	char *buf;
-	int ret;
-	int len = i2c_hid_get_report_length(rep) - 2;
+	struct i2c_hid *ihid = i2c_get_clientdata(client);
+	bool data = true; /* SET_REPORT */
 
-	buf = kzalloc(len, GFP_KERNEL);
-	if (!buf)
-		return;
+	if (report_type == HID_OUTPUT_REPORT)
+		data = le16_to_cpu(ihid->hdesc.wMaxOutputLength) == 0;
+
+	return i2c_hid_output_raw_report(hid, buf, count, report_type, data);
+}
 
+static int i2c_hid_output_report(struct hid_device *hid, __u8 *buf,
+		size_t count)
+{
+	return i2c_hid_output_raw_report(hid, buf, count, HID_OUTPUT_REPORT,
+			false);
+}
+
+static int i2c_hid_raw_request(struct hid_device *hid, unsigned char reportnum,
+			       __u8 *buf, size_t len, unsigned char rtype,
+			       int reqtype)
+{
 	switch (reqtype) {
 	case HID_REQ_GET_REPORT:
-		ret = i2c_hid_get_raw_report(hid, rep->id, buf, len, rep->type);
-		if (ret < 0)
-			dev_err(&client->dev, "%s: unable to get report: %d\n",
-				__func__, ret);
-		else
-			hid_input_report(hid, rep->type, buf, ret, 0);
-		break;
+		return i2c_hid_get_raw_report(hid, reportnum, buf, len, rtype);
 	case HID_REQ_SET_REPORT:
-		hid_output_report(rep, buf);
-		i2c_hid_output_raw_report(hid, buf, len, rep->type);
-		break;
+		if (buf[0] != reportnum)
+			return -EINVAL;
+		return i2c_hid_output_raw_report(hid, buf, len, rtype, true);
+	default:
+		return -EIO;
 	}
-
-	kfree(buf);
 }
 
 static int i2c_hid_parse(struct hid_device *hid)
@@ -760,7 +779,8 @@ static struct hid_ll_driver i2c_hid_ll_driver = {
 	.open = i2c_hid_open,
 	.close = i2c_hid_close,
 	.power = i2c_hid_power,
-	.request = i2c_hid_request,
+	.output_report = i2c_hid_output_report,
+	.raw_request = i2c_hid_raw_request,
 };
 
 static int i2c_hid_init_irq(struct i2c_client *client)
@@ -1005,8 +1025,7 @@ static int i2c_hid_probe(struct i2c_client *client,
 
 	hid->driver_data = client;
 	hid->ll_driver = &i2c_hid_ll_driver;
-	hid->hid_get_raw_report = i2c_hid_get_raw_report;
-	hid->hid_output_raw_report = i2c_hid_output_raw_report;
+	hid->hid_output_raw_report = __i2c_hid_output_raw_report;
 	hid->dev.parent = &client->dev;
 	ACPI_COMPANION_SET(&hid->dev, ACPI_COMPANION(&client->dev));
 	hid->bus = BUS_I2C;

drivers/hid/uhid.c

@@ -244,12 +244,35 @@ static int uhid_hid_output_raw(struct hid_device *hid, __u8 *buf, size_t count,
 	return count;
 }
 
+static int uhid_hid_output_report(struct hid_device *hid, __u8 *buf,
+				  size_t count)
+{
+	return uhid_hid_output_raw(hid, buf, count, HID_OUTPUT_REPORT);
+}
+
+static int uhid_raw_request(struct hid_device *hid, unsigned char reportnum,
+			    __u8 *buf, size_t len, unsigned char rtype,
+			    int reqtype)
+{
+	switch (reqtype) {
+	case HID_REQ_GET_REPORT:
+		return uhid_hid_get_raw(hid, reportnum, buf, len, rtype);
+	case HID_REQ_SET_REPORT:
+		/* TODO: implement proper SET_REPORT functionality */
+		return -ENOSYS;
+	default:
+		return -EIO;
+	}
+}
+
 static struct hid_ll_driver uhid_hid_driver = {
 	.start = uhid_hid_start,
 	.stop = uhid_hid_stop,
 	.open = uhid_hid_open,
 	.close = uhid_hid_close,
 	.parse = uhid_hid_parse,
+	.output_report = uhid_hid_output_report,
+	.raw_request = uhid_raw_request,
 };
 
 #ifdef CONFIG_COMPAT
@@ -377,7 +400,6 @@ static int uhid_dev_create(struct uhid_device *uhid,
 	hid->uniq[63] = 0;
 
 	hid->ll_driver = &uhid_hid_driver;
-	hid->hid_get_raw_report = uhid_hid_get_raw;
 	hid->hid_output_raw_report = uhid_hid_output_raw;
 	hid->bus = ev->u.create.bus;
 	hid->vendor = ev->u.create.vendor;

drivers/hid/usbhid/hid-core.c

@@ -884,58 +884,78 @@ static int usbhid_get_raw_report(struct hid_device *hid,
 	return ret;
 }
 
-static int usbhid_output_raw_report(struct hid_device *hid, __u8 *buf, size_t count,
-		unsigned char report_type)
+static int usbhid_set_raw_report(struct hid_device *hid, unsigned int reportnum,
+				 __u8 *buf, size_t count, unsigned char rtype)
 {
 	struct usbhid_device *usbhid = hid->driver_data;
 	struct usb_device *dev = hid_to_usb_dev(hid);
 	struct usb_interface *intf = usbhid->intf;
 	struct usb_host_interface *interface = intf->cur_altsetting;
-	int ret;
-
-	if (usbhid->urbout && report_type != HID_FEATURE_REPORT) {
-		int actual_length;
-		int skipped_report_id = 0;
+	int ret, skipped_report_id = 0;
 
+	/* Byte 0 is the report number. Report data starts at byte 1.*/
+	buf[0] = reportnum;
 	if (buf[0] == 0x0) {
 		/* Don't send the Report ID */
 		buf++;
 		count--;
 		skipped_report_id = 1;
 	}
-		ret = usb_interrupt_msg(dev, usbhid->urbout->pipe,
-			buf, count, &actual_length,
+
+	ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
+			HID_REQ_SET_REPORT,
+			USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
+			((rtype + 1) << 8) | reportnum,
+			interface->desc.bInterfaceNumber, buf, count,
 			USB_CTRL_SET_TIMEOUT);
-		/* return the number of bytes transferred */
-		if (ret == 0) {
-			ret = actual_length;
-			/* count also the report id */
-			if (skipped_report_id)
+	/* count also the report id, if this was a numbered report. */
+	if (ret > 0 && skipped_report_id)
 		ret++;
-		}
-	} else {
-		int skipped_report_id = 0;
-		int report_id = buf[0];
+
+	return ret;
+}
+
+static int usbhid_output_report(struct hid_device *hid, __u8 *buf, size_t count)
+{
+	struct usbhid_device *usbhid = hid->driver_data;
+	struct usb_device *dev = hid_to_usb_dev(hid);
+	int actual_length, skipped_report_id = 0, ret;
+
+	if (!usbhid->urbout)
+		return -ENOSYS;
+
 	if (buf[0] == 0x0) {
 		/* Don't send the Report ID */
 		buf++;
 		count--;
 		skipped_report_id = 1;
 	}
-		ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
-			HID_REQ_SET_REPORT,
-			USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
-			((report_type + 1) << 8) | report_id,
-			interface->desc.bInterfaceNumber, buf, count,
+
+	ret = usb_interrupt_msg(dev, usbhid->urbout->pipe,
+				buf, count, &actual_length,
 				USB_CTRL_SET_TIMEOUT);
-		/* count also the report id, if this was a numbered report. */
-		if (ret > 0 && skipped_report_id)
+	/* return the number of bytes transferred */
+	if (ret == 0) {
+		ret = actual_length;
+		/* count also the report id */
+		if (skipped_report_id)
 			ret++;
 	}
 
 	return ret;
 }
 
+static int usbhid_output_raw_report(struct hid_device *hid, __u8 *buf,
+		size_t count, unsigned char report_type)
+{
+	struct usbhid_device *usbhid = hid->driver_data;
+
+	if (usbhid->urbout && report_type != HID_FEATURE_REPORT)
+		return usbhid_output_report(hid, buf, count);
+
+	return usbhid_set_raw_report(hid, buf[0], buf, count, report_type);
+}
+
 static void usbhid_restart_queues(struct usbhid_device *usbhid)
 {
 	if (usbhid->urbout && !test_bit(HID_OUT_RUNNING, &usbhid->iofl))
@@ -1200,6 +1220,20 @@ static void usbhid_request(struct hid_device *hid, struct hid_report *rep, int r
 	}
 }
 
+static int usbhid_raw_request(struct hid_device *hid, unsigned char reportnum,
+			      __u8 *buf, size_t len, unsigned char rtype,
+			      int reqtype)
+{
+	switch (reqtype) {
+	case HID_REQ_GET_REPORT:
+		return usbhid_get_raw_report(hid, reportnum, buf, len, rtype);
+	case HID_REQ_SET_REPORT:
+		return usbhid_set_raw_report(hid, reportnum, buf, len, rtype);
+	default:
+		return -EIO;
+	}
+}
+
 static int usbhid_idle(struct hid_device *hid, int report, int idle,
 		int reqtype)
 {
@@ -1223,6 +1257,8 @@ static struct hid_ll_driver usb_hid_driver = {
 	.power = usbhid_power,
 	.request = usbhid_request,
 	.wait = usbhid_wait_io,
+	.raw_request = usbhid_raw_request,
+	.output_report = usbhid_output_report,
 	.idle = usbhid_idle,
 };
 
@@ -1253,7 +1289,6 @@ static int usbhid_probe(struct usb_interface *intf, const struct usb_device_id *
 
 	usb_set_intfdata(intf, hid);
 	hid->ll_driver = &usb_hid_driver;
-	hid->hid_get_raw_report = usbhid_get_raw_report;
 	hid->hid_output_raw_report = usbhid_output_raw_report;
 	hid->ff_init = hid_pidff_init;
 #ifdef CONFIG_USB_HIDDEV

include/linux/hid.h

@@ -508,9 +508,6 @@ struct hid_device {							/* device report descriptor */
 				  struct hid_usage *, __s32);
 	void (*hiddev_report_event) (struct hid_device *, struct hid_report *);
 
-	/* handler for raw input (Get_Report) data, used by hidraw */
-	int (*hid_get_raw_report) (struct hid_device *, unsigned char, __u8 *, size_t, unsigned char);
-
 	/* handler for raw output data, used by hidraw */
 	int (*hid_output_raw_report) (struct hid_device *, __u8 *, size_t, unsigned char);
 
@@ -675,11 +672,12 @@ struct hid_driver {
  * @stop: called on remove
  * @open: called by input layer on open
  * @close: called by input layer on close
- * @hidinput_input_event: event input event (e.g. ff or leds)
  * @parse: this method is called only once to parse the device data,
  *	   shouldn't allocate anything to not leak memory
  * @request: send report request to device (e.g. feature report)
  * @wait: wait for buffered io to complete (send/recv reports)
+ * @raw_request: send raw report request to device (e.g. feature report)
+ * @output_report: send output report to device
  * @idle: send idle request to device
  */
 struct hid_ll_driver {
@@ -691,17 +689,20 @@ struct hid_ll_driver {
 
 	int (*power)(struct hid_device *hdev, int level);
 
-	int (*hidinput_input_event) (struct input_dev *idev, unsigned int type,
-			unsigned int code, int value);
-
 	int (*parse)(struct hid_device *hdev);
 
 	void (*request)(struct hid_device *hdev,
 			struct hid_report *report, int reqtype);
 
 	int (*wait)(struct hid_device *hdev);
-	int (*idle)(struct hid_device *hdev, int report, int idle, int reqtype);
 
+	int (*raw_request) (struct hid_device *hdev, unsigned char reportnum,
+			    __u8 *buf, size_t len, unsigned char rtype,
+			    int reqtype);
+
+	int (*output_report) (struct hid_device *hdev, __u8 *buf, size_t len);
+
+	int (*idle)(struct hid_device *hdev, int report, int idle, int reqtype);
 };
 
 #define	PM_HINT_FULLON	1<<5
@@ -752,6 +753,7 @@ struct hid_field *hidinput_get_led_field(struct hid_device *hid);
 unsigned int hidinput_count_leds(struct hid_device *hid);
 __s32 hidinput_calc_abs_res(const struct hid_field *field, __u16 code);
 void hid_output_report(struct hid_report *report, __u8 *data);
+void __hid_request(struct hid_device *hid, struct hid_report *rep, int reqtype);
 u8 *hid_alloc_report_buf(struct hid_report *report, gfp_t flags);
 struct hid_device *hid_allocate_device(void);
 struct hid_report *hid_register_report(struct hid_device *device, unsigned type, unsigned id);
@@ -964,7 +966,74 @@ static inline void hid_hw_request(struct hid_device *hdev,
 				  struct hid_report *report, int reqtype)
 {
 	if (hdev->ll_driver->request)
-		hdev->ll_driver->request(hdev, report, reqtype);
+		return hdev->ll_driver->request(hdev, report, reqtype);
+
+	__hid_request(hdev, report, reqtype);
+}
+
+/**
+ * hid_hw_raw_request - send report request to device
+ *
+ * @hdev: hid device
+ * @reportnum: report ID
+ * @buf: in/out data to transfer
+ * @len: length of buf
+ * @rtype: HID report type
+ * @reqtype: HID_REQ_GET_REPORT or HID_REQ_SET_REPORT
+ *
+ * @return: count of data transfered, negative if error
+ *
+ * Same behavior as hid_hw_request, but with raw buffers instead.
+ */
+static inline int hid_hw_raw_request(struct hid_device *hdev,
+				  unsigned char reportnum, __u8 *buf,
+				  size_t len, unsigned char rtype, int reqtype)
+{
+	if (len < 1 || len > HID_MAX_BUFFER_SIZE || !buf)
+		return -EINVAL;
+
+	if (hdev->ll_driver->raw_request)
+		return hdev->ll_driver->raw_request(hdev, reportnum, buf, len,
+						    rtype, reqtype);
+
+	return -ENOSYS;
+}
+
+/**
+ * hid_hw_output_report - send output report to device
+ *
+ * @hdev: hid device
+ * @buf: raw data to transfer
+ * @len: length of buf
+ *
+ * @return: count of data transfered, negative if error
+ */
+static inline int hid_hw_output_report(struct hid_device *hdev, __u8 *buf,
+					size_t len)
+{
+	if (len < 1 || len > HID_MAX_BUFFER_SIZE || !buf)
+		return -EINVAL;
+
+	if (hdev->ll_driver->output_report)
+		return hdev->ll_driver->output_report(hdev, buf, len);
+
+	return -ENOSYS;
+}
+
+/**
+ * hid_output_raw_report - send an output or a feature report to the device
+ *
+ * @hdev: hid device
+ * @buf: raw data to transfer
+ * @len: length of buf
+ * @report_type: HID_FEATURE_REPORT or HID_OUTPUT_REPORT
+ *
+ * @return: count of data transfered, negative if error
+ */
+static inline int hid_output_raw_report(struct hid_device *hdev, __u8 *buf,
+					size_t len, unsigned char report_type)
+{
+	return hdev->hid_output_raw_report(hdev, buf, len, report_type);
 }
 
 /**

net/bluetooth/hidp/core.c

@@ -223,51 +223,6 @@ static void hidp_input_report(struct hidp_session *session, struct sk_buff *skb)
 	input_sync(dev);
 }
 
-static int hidp_send_report(struct hidp_session *session, struct hid_report *report)
-{
-	unsigned char hdr;
-	u8 *buf;
-	int rsize, ret;
-
-	buf = hid_alloc_report_buf(report, GFP_ATOMIC);
-	if (!buf)
-		return -EIO;
-
-	hid_output_report(report, buf);
-	hdr = HIDP_TRANS_DATA | HIDP_DATA_RTYPE_OUPUT;
-
-	rsize = ((report->size - 1) >> 3) + 1 + (report->id > 0);
-	ret = hidp_send_intr_message(session, hdr, buf, rsize);
-
-	kfree(buf);
-	return ret;
-}
-
-static int hidp_hidinput_event(struct input_dev *dev, unsigned int type,
-			       unsigned int code, int value)
-{
-	struct hid_device *hid = input_get_drvdata(dev);
-	struct hidp_session *session = hid->driver_data;
-	struct hid_field *field;
-	int offset;
-
-	BT_DBG("session %p type %d code %d value %d",
-	       session, type, code, value);
-
-	if (type != EV_LED)
-		return -1;
-
-	offset = hidinput_find_field(hid, type, code, &field);
-	if (offset == -1) {
-		hid_warn(dev, "event field not found\n");
-		return -1;
-	}
-
-	hid_set_field(field, offset, value);
-
-	return hidp_send_report(session, field->report);
-}
-
 static int hidp_get_raw_report(struct hid_device *hid,
 		unsigned char report_number,
 		unsigned char *data, size_t count,
@@ -353,17 +308,24 @@ static int hidp_get_raw_report(struct hid_device *hid,
 	return ret;
 }
 
-static int hidp_output_raw_report(struct hid_device *hid, unsigned char *data, size_t count,
+static int hidp_set_raw_report(struct hid_device *hid, unsigned char reportnum,
+			       unsigned char *data, size_t count,
 			       unsigned char report_type)
 {
 	struct hidp_session *session = hid->driver_data;
 	int ret;
 
-	if (report_type == HID_OUTPUT_REPORT) {
-		report_type = HIDP_TRANS_DATA | HIDP_DATA_RTYPE_OUPUT;
-		return hidp_send_intr_message(session, report_type,
-					      data, count);
-	} else if (report_type != HID_FEATURE_REPORT) {
+	switch (report_type) {
+	case HID_FEATURE_REPORT:
+		report_type = HIDP_TRANS_SET_REPORT | HIDP_DATA_RTYPE_FEATURE;
+		break;
+	case HID_INPUT_REPORT:
+		report_type = HIDP_TRANS_SET_REPORT | HIDP_DATA_RTYPE_INPUT;
+		break;
+	case HID_OUTPUT_REPORT:
+		report_type = HIDP_TRANS_SET_REPORT | HIDP_DATA_RTYPE_OUPUT;
+		break;
+	default:
 		return -EINVAL;
 	}
 
@@ -371,8 +333,8 @@ static int hidp_output_raw_report(struct hid_device *hid, unsigned char *data, s
 		return -ERESTARTSYS;
 
 	/* Set up our wait, and send the report request to the device. */
+	data[0] = reportnum;
 	set_bit(HIDP_WAITING_FOR_SEND_ACK, &session->flags);
-	report_type = HIDP_TRANS_SET_REPORT | HIDP_DATA_RTYPE_FEATURE;
 	ret = hidp_send_ctrl_message(session, report_type, data, count);
 	if (ret)
 		goto err;
@@ -411,6 +373,41 @@ static int hidp_output_raw_report(struct hid_device *hid, unsigned char *data, s
 	return ret;
 }
 
+static int hidp_output_report(struct hid_device *hid, __u8 *data, size_t count)
+{
+	struct hidp_session *session = hid->driver_data;
+
+	return hidp_send_intr_message(session,
+				      HIDP_TRANS_DATA | HIDP_DATA_RTYPE_OUPUT,
+				      data, count);
+}
+
+static int hidp_output_raw_report(struct hid_device *hid, unsigned char *data,
+		size_t count, unsigned char report_type)
+{
+	if (report_type == HID_OUTPUT_REPORT) {
+		return hidp_output_report(hid, data, count);
+	} else if (report_type != HID_FEATURE_REPORT) {
+		return -EINVAL;
+	}
+
+	return hidp_set_raw_report(hid, data[0], data, count, report_type);
+}
+
+static int hidp_raw_request(struct hid_device *hid, unsigned char reportnum,
+			    __u8 *buf, size_t len, unsigned char rtype,
+			    int reqtype)
+{
+	switch (reqtype) {
+	case HID_REQ_GET_REPORT:
+		return hidp_get_raw_report(hid, reportnum, buf, len, rtype);
+	case HID_REQ_SET_REPORT:
+		return hidp_set_raw_report(hid, reportnum, buf, len, rtype);
+	default:
+		return -EIO;
+	}
+}
+
 static void hidp_idle_timeout(unsigned long arg)
 {
 	struct hidp_session *session = (struct hidp_session *) arg;
@@ -727,7 +724,8 @@ static struct hid_ll_driver hidp_hid_driver = {
 	.stop = hidp_stop,
 	.open  = hidp_open,
 	.close = hidp_close,
-	.hidinput_input_event = hidp_hidinput_event,
+	.raw_request = hidp_raw_request,
+	.output_report = hidp_output_report,
 };
 
 /* This function sets up the hid device. It does not add it
@@ -775,7 +773,6 @@ static int hidp_setup_hid(struct hidp_session *session,
 	hid->dev.parent = &session->conn->hcon->dev;
 	hid->ll_driver = &hidp_hid_driver;
 
-	hid->hid_get_raw_report = hidp_get_raw_report;
 	hid->hid_output_raw_report = hidp_output_raw_report;
 
 	/* True if device is blacklisted in drivers/hid/hid-core.c */