#include <linux/device.h>
#include <linux/hid.h>
#include <linux/module.h>
+#include <linux/random.h>
+#include <linux/sched.h>
+#include <linux/wait.h>
#include "hid-ids.h"
#include "hid-lg.h"
#define LG_FF2 0x400
#define LG_RDESC_REL_ABS 0x800
#define LG_FF3 0x1000
+#define LG_FF4 0x2000
/*
* Certain Logitech keyboards send in report #3 keys which are far
"report descriptor\n");
rdesc[33] = rdesc[50] = 0x02;
}
+
+ if ((quirks & LG_FF4) && rsize >= 101 &&
+ rdesc[41] == 0x95 && rdesc[42] == 0x0B &&
+ rdesc[47] == 0x05 && rdesc[48] == 0x09) {
+ dev_info(&hdev->dev, "fixing up Logitech Speed Force Wireless "
+ "button descriptor\n");
+ rdesc[41] = 0x05;
+ rdesc[42] = 0x09;
+ rdesc[47] = 0x95;
+ rdesc[48] = 0x0B;
+ }
}
#define lg_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, \
goto err_free;
}
+ if (quirks & LG_FF4) {
+ 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);
+
+ if (ret >= 0) {
+ /* insert a little delay of 10 jiffies ~ 40ms */
+ wait_queue_head_t wait;
+ init_waitqueue_head (&wait);
+ wait_event_interruptible_timeout(wait, 0, 10);
+
+ /* Select random Address */
+ buf[1] = 0xB2;
+ get_random_bytes(&buf[2], 2);
+
+ ret = hdev->hid_output_raw_report(hdev, buf, sizeof(buf), HID_FEATURE_REPORT);
+ }
+ }
+
if (quirks & LG_FF)
lgff_init(hdev);
if (quirks & LG_FF2)
lg2ff_init(hdev);
if (quirks & LG_FF3)
lg3ff_init(hdev);
+ if (quirks & LG_FF4)
+ lg4ff_init(hdev);
return 0;
err_free:
.driver_data = LG_FF },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G25_WHEEL),
.driver_data = LG_FF },
+ { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WII_WHEEL),
+ .driver_data = LG_FF4 },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_FFG ),
.driver_data = LG_FF },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2),
--- /dev/null
+/*
+ * Force feedback support for Logitech Speed Force Wireless
+ *
+ * http://wiibrew.org/wiki/Logitech_USB_steering_wheel
+ *
+ * Copyright (c) 2010 Simon Wood <simon@mungewell.org>
+ */
+
+/*
+ * 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>
+#include <linux/usb.h>
+#include <linux/hid.h>
+
+#include "usbhid/usbhid.h"
+#include "hid-lg.h"
+
+struct lg4ff_device {
+ struct hid_report *report;
+};
+
+static const signed short ff4_wheel_ac[] = {
+ FF_CONSTANT,
+ FF_AUTOCENTER,
+ -1
+};
+
+static int hid_lg4ff_play(struct input_dev *dev, void *data,
+ struct ff_effect *effect)
+{
+ struct hid_device *hid = input_get_drvdata(dev);
+ struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;
+ struct hid_report *report = list_entry(report_list->next, struct hid_report, list);
+ int x;
+
+#define CLAMP(x) if (x < 0) x = 0; if (x > 0xff) x = 0xff
+
+ switch (effect->type) {
+ case FF_CONSTANT:
+ x = effect->u.ramp.start_level + 0x80; /* 0x80 is no force */
+ CLAMP(x);
+ report->field[0]->value[0] = 0x11; /* Slot 1 */
+ report->field[0]->value[1] = 0x10;
+ report->field[0]->value[2] = x;
+ report->field[0]->value[3] = 0x00;
+ report->field[0]->value[4] = 0x00;
+ report->field[0]->value[5] = 0x08;
+ report->field[0]->value[6] = 0x00;
+ dbg_hid("Autocenter, x=0x%02X\n", x);
+
+ usbhid_submit_report(hid, report, USB_DIR_OUT);
+ break;
+ }
+ return 0;
+}
+
+static void hid_lg4ff_set_autocenter(struct input_dev *dev, u16 magnitude)
+{
+ struct hid_device *hid = input_get_drvdata(dev);
+ struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;
+ struct hid_report *report = list_entry(report_list->next, struct hid_report, list);
+ __s32 *value = report->field[0]->value;
+
+ *value++ = 0xfe;
+ *value++ = 0x0d;
+ *value++ = 0x07;
+ *value++ = 0x07;
+ *value++ = (magnitude >> 8) & 0xff;
+ *value++ = 0x00;
+ *value = 0x00;
+
+ usbhid_submit_report(hid, report, USB_DIR_OUT);
+}
+
+
+int lg4ff_init(struct hid_device *hid)
+{
+ struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list);
+ struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;
+ struct input_dev *dev = hidinput->input;
+ struct hid_report *report;
+ struct hid_field *field;
+ const signed short *ff_bits = ff4_wheel_ac;
+ int error;
+ int i;
+
+ /* Find the report to use */
+ if (list_empty(report_list)) {
+ err_hid("No output report found");
+ return -1;
+ }
+
+ /* Check that the report looks ok */
+ report = list_entry(report_list->next, struct hid_report, list);
+ if (!report) {
+ err_hid("NULL output report");
+ return -1;
+ }
+
+ field = report->field[0];
+ if (!field) {
+ err_hid("NULL field");
+ return -1;
+ }
+
+ for (i = 0; ff_bits[i] >= 0; i++)
+ set_bit(ff_bits[i], dev->ffbit);
+
+ error = input_ff_create_memless(dev, NULL, hid_lg4ff_play);
+
+ if (error)
+ return error;
+
+ if (test_bit(FF_AUTOCENTER, dev->ffbit))
+ dev->ff->set_autocenter = hid_lg4ff_set_autocenter;
+
+ dev_info(&hid->dev, "Force feedback for Logitech Speed Force Wireless by "
+ "Simon Wood <simon@mungewell.org>\n");
+ return 0;
+}
+
projects / platform / kernel / linux-arm64.git / commitdiff