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| author | Michal Malý <madcatxster@gmail.com> | 2011-08-04 16:22:07 +0200 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2011-08-04 16:45:55 +0200 |
| commit | 6e2de8e0ab238f7ee818c545a7ea97a4fc333e33 (patch) | |
| tree | 597ba14698237bcc456819edec972d023ef297c4 /drivers/hid/hid-lg4ff.c | |
| parent | HID: lg4ff - Add range setting support and sysfs interface (diff) | |
| download | linux-6e2de8e0ab238f7ee818c545a7ea97a4fc333e33.tar.xz linux-6e2de8e0ab238f7ee818c545a7ea97a4fc333e33.zip | |
HID: lg4ff - Add autocentering command accepted by Formula Force EX
The Logitech driver sends Formula Force EX wheel a different command to
autocenering force. FFEX will accept the standard command used by the rest of
the wheels, but it won't set the centering properly.
Signed-off-by: Michal Malý <madcatxster@gmail.com>
Signed-off-by: Simon Wood <simon@mungewell.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid/hid-lg4ff.c')
| -rw-r--r-- | drivers/hid/hid-lg4ff.c | 36 |
1 files changed, 33 insertions, 3 deletions
diff --git a/drivers/hid/hid-lg4ff.c b/drivers/hid/hid-lg4ff.c index 5c9eef2267ed..dc38c2d89df1 100644 --- a/drivers/hid/hid-lg4ff.c +++ b/drivers/hid/hid-lg4ff.c @@ -157,7 +157,9 @@ static int hid_lg4ff_play(struct input_dev *dev, void *data, struct ff_effect *e return 0; } -static void hid_lg4ff_set_autocenter(struct input_dev *dev, u16 magnitude) +/* Sends default autocentering command compatible with + * all wheels except Formula Force EX */ +static void hid_lg4ff_set_autocenter_default(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; @@ -174,6 +176,26 @@ static void hid_lg4ff_set_autocenter(struct input_dev *dev, u16 magnitude) usbhid_submit_report(hid, report, USB_DIR_OUT); } +/* Sends autocentering command compatible with Formula Force EX */ +static void hid_lg4ff_set_autocenter_ffex(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); + magnitude = magnitude * 90 / 65535; + + + report->field[0]->value[0] = 0xfe; + report->field[0]->value[1] = 0x03; + report->field[0]->value[2] = magnitude >> 14; + report->field[0]->value[3] = magnitude >> 14; + report->field[0]->value[4] = magnitude; + report->field[0]->value[5] = 0x00; + report->field[0]->value[6] = 0x00; + + usbhid_submit_report(hid, report, USB_DIR_OUT); +} + /* Sends command to set range compatible with G25/G27/Driving Force GT */ static void hid_lg4ff_set_range_g25(struct hid_device *hid, u16 range) { @@ -390,8 +412,16 @@ int lg4ff_init(struct hid_device *hid) if (error) return error; - if (test_bit(FF_AUTOCENTER, dev->ffbit)) - dev->ff->set_autocenter = hid_lg4ff_set_autocenter; + /* Check if autocentering is available and + * set the centering force to zero by default */ + if (test_bit(FF_AUTOCENTER, dev->ffbit)) { + if(rev_maj == FFEX_REV_MAJ && rev_min == FFEX_REV_MIN) /* Formula Force EX expects different autocentering command */ + dev->ff->set_autocenter = hid_lg4ff_set_autocenter_ffex; + else + dev->ff->set_autocenter = hid_lg4ff_set_autocenter_default; + + dev->ff->set_autocenter(dev, 0); + } /* Initialize device_list if this is the first device to handle by lg4ff */ if (!list_inited) { |