7 files changed, 193 insertions, 0 deletions

diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index 6369ba7f96f8..6664c573cf33 100644
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -235,6 +235,14 @@ config LOGIG940_FF
           Say Y here if you want to enable force feedback support for Logitech
           Flight System G940 devices.
 
+config LOGIWII_FF
+        bool "Logitech Speed Force Wireless force feedback support"
+        depends on HID_LOGITECH
+        select INPUT_FF_MEMLESS
+        help
+          Say Y here if you want to enable force feedback support for Logitech
+          Speed Force Wireless (Wii) devices.
+
 config HID_MAGICMOUSE
         tristate "Apple MagicMouse multi-touch support"
         depends on BT_HIDP
diff --git a/drivers/hid/Makefile b/drivers/hid/Makefile
index 46f037f3df80..d46a455eefc1 100644
--- a/drivers/hid/Makefile
+++ b/drivers/hid/Makefile
@@ -21,6 +21,9 @@ endif
 ifdef CONFIG_LOGIG940_FF
         hid-logitech-objs       += hid-lg3ff.o
 endif
+ifdef CONFIG_LOGIWII_FF
+        hid-logitech-objs       += hid-lg4ff.o
+endif
 
 obj-$(CONFIG_HID_3M_PCT)        += hid-3m-pct.o
 obj-$(CONFIG_HID_A4TECH)        += hid-a4tech.o
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 3f7292486024..19d45473f24f 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1335,6 +1335,7 @@ static const struct hid_device_id hid_blacklist[] = {
         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL) },
         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2) },
         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G25_WHEEL) },
+        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WII_WHEEL) },
         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2) },
         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACETRAVELLER) },
         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACENAVIGATOR) },
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 765a4f53eb5c..6b111e1e2df1 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -350,6 +350,7 @@
 #define USB_DEVICE_ID_LOGITECH_WINGMAN_FFG      0xc293
 #define USB_DEVICE_ID_LOGITECH_MOMO_WHEEL       0xc295
 #define USB_DEVICE_ID_LOGITECH_G25_WHEEL        0xc299
+#define USB_DEVICE_ID_LOGITECH_WII_WHEEL        0xc29c
 #define USB_DEVICE_ID_LOGITECH_ELITE_KBD        0xc30a
 #define USB_DEVICE_ID_S510_RECEIVER     0xc50c
 #define USB_DEVICE_ID_S510_RECEIVER_2   0xc517
diff --git a/drivers/hid/hid-lg.c b/drivers/hid/hid-lg.c
index f6433d8050a9..8989f151e0d7 100644
--- a/drivers/hid/hid-lg.c
+++ b/drivers/hid/hid-lg.c
@@ -19,6 +19,9 @@
 #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"
@@ -35,6 +38,7 @@
 #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
@@ -60,6 +64,17 @@ static void lg_report_fixup(struct hid_device *hdev, __u8 *rdesc,
                                 "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, \
@@ -285,12 +300,33 @@ static int lg_probe(struct hid_device *hdev, const struct hid_device_id *id)
                 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:
@@ -339,6 +375,8 @@ static const struct hid_device_id lg_devices[] = {
                 .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),
diff --git a/drivers/hid/hid-lg.h b/drivers/hid/hid-lg.h
index ce2ac8672624..b0100ba2ae0b 100644
--- a/drivers/hid/hid-lg.h
+++ b/drivers/hid/hid-lg.h
@@ -19,4 +19,10 @@ int lg3ff_init(struct hid_device *hdev);
 static inline int lg3ff_init(struct hid_device *hdev) { return -1; }
 #endif
 
+#ifdef CONFIG_LOGIWII_FF
+int lg4ff_init(struct hid_device *hdev);
+#else
+static inline int lg4ff_init(struct hid_device *hdev) { return -1; }
+#endif
+
 #endif
diff --git a/drivers/hid/hid-lg4ff.c b/drivers/hid/hid-lg4ff.c
new file mode 100644
index 000000000000..7eef5a2ce948
--- /dev/null
+++ b/drivers/hid/hid-lg4ff.c
@@ -0,0 +1,136 @@
+/*
+ *  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;
+}
+