USB HID: move usbhid code from drivers/usb/input to drivers/hid/usbhid

Separate usbhid code into dedicated drivers/hid/usbhid directory as
discussed previously with Greg, so that it eases maintaineance process.

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 147 insertions, 0 deletions

diff --git a/drivers/hid/usbhid/hid-tmff.c b/drivers/hid/usbhid/hid-tmff.c
new file mode 100644
index 00000000000..ab67331620d
--- /dev/null
+++ b/drivers/hid/usbhid/hid-tmff.c
@@ -0,0 +1,147 @@
+/*
+ * Force feedback support for various HID compliant devices by ThrustMaster:
+ *    ThrustMaster FireStorm Dual Power 2
+ * and possibly others whose device ids haven't been added.
+ *
+ *  Modified to support ThrustMaster devices by Zinx Verituse
+ *  on 2003-01-25 from the Logitech force feedback driver,
+ *  which is by Johann Deneux.
+ *
+ *  Copyright (c) 2003 Zinx Verituse <zinx@epicsol.org>
+ *  Copyright (c) 2002 Johann Deneux
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/input.h>
+
+#undef DEBUG
+#include <linux/usb.h>
+
+#include <linux/hid.h>
+#include "usbhid.h"
+
+/* Usages for thrustmaster devices I know about */
+#define THRUSTMASTER_USAGE_RUMBLE_LR	(HID_UP_GENDESK | 0xbb)
+
+
+struct tmff_device {
+	struct hid_report *report;
+	struct hid_field *rumble;
+};
+
+/* Changes values from 0 to 0xffff into values from minimum to maximum */
+static inline int hid_tmff_scale(unsigned int in, int minimum, int maximum)
+{
+	int ret;
+
+	ret = (in * (maximum - minimum) / 0xffff) + minimum;
+	if (ret < minimum)
+		return minimum;
+	if (ret > maximum)
+		return maximum;
+	return ret;
+}
+
+static int hid_tmff_play(struct input_dev *dev, void *data, struct ff_effect *effect)
+{
+	struct hid_device *hid = dev->private;
+	struct tmff_device *tmff = data;
+	int left, right;	/* Rumbling */
+
+	left = hid_tmff_scale(effect->u.rumble.weak_magnitude,
+		tmff->rumble->logical_minimum, tmff->rumble->logical_maximum);
+	right = hid_tmff_scale(effect->u.rumble.strong_magnitude,
+		tmff->rumble->logical_minimum, tmff->rumble->logical_maximum);
+
+	tmff->rumble->value[0] = left;
+	tmff->rumble->value[1] = right;
+	dbg("(left,right)=(%08x, %08x)", left, right);
+	usbhid_submit_report(hid, tmff->report, USB_DIR_OUT);
+
+	return 0;
+}
+
+int hid_tmff_init(struct hid_device *hid)
+{
+	struct tmff_device *tmff;
+	struct list_head *pos;
+	struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list);
+	struct input_dev *input_dev = hidinput->input;
+	int error;
+
+	tmff = kzalloc(sizeof(struct tmff_device), GFP_KERNEL);
+	if (!tmff)
+		return -ENOMEM;
+
+	/* Find the report to use */
+	__list_for_each(pos, &hid->report_enum[HID_OUTPUT_REPORT].report_list) {
+		struct hid_report *report = (struct hid_report *)pos;
+		int fieldnum;
+
+		for (fieldnum = 0; fieldnum < report->maxfield; ++fieldnum) {
+			struct hid_field *field = report->field[fieldnum];
+
+			if (field->maxusage <= 0)
+				continue;
+
+			switch (field->usage[0].hid) {
+				case THRUSTMASTER_USAGE_RUMBLE_LR:
+					if (field->report_count < 2) {
+						warn("ignoring THRUSTMASTER_USAGE_RUMBLE_LR with report_count < 2");
+						continue;
+					}
+
+					if (field->logical_maximum == field->logical_minimum) {
+						warn("ignoring THRUSTMASTER_USAGE_RUMBLE_LR with logical_maximum == logical_minimum");
+						continue;
+					}
+
+					if (tmff->report && tmff->report != report) {
+						warn("ignoring THRUSTMASTER_USAGE_RUMBLE_LR in other report");
+						continue;
+					}
+
+					if (tmff->rumble && tmff->rumble != field) {
+						warn("ignoring duplicate THRUSTMASTER_USAGE_RUMBLE_LR");
+						continue;
+					}
+
+					tmff->report = report;
+					tmff->rumble = field;
+
+					set_bit(FF_RUMBLE, input_dev->ffbit);
+					break;
+
+				default:
+					warn("ignoring unknown output usage %08x", field->usage[0].hid);
+					continue;
+			}
+		}
+	}
+
+	error = input_ff_create_memless(input_dev, tmff, hid_tmff_play);
+	if (error) {
+		kfree(tmff);
+		return error;
+	}
+
+	info("Force feedback for ThrustMaster rumble pad devices by Zinx Verituse <zinx@epicsol.org>");
+
+	return 0;
+}
+