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| author | Chase Douglas <chase.douglas@ubuntu.com> | 2010-09-02 16:51:54 +0200 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2010-09-02 16:51:54 +0200 |
| commit | c61b7cee672cc7276619ac0edf8f426e2f9e63e9 (patch) | |
| tree | b8d827b126d3d39072d227c1ae1103f8a2d1cb00 /drivers | |
| parent | 0228db70ce6afdcd14164ab8d18137fa319c76e8 (diff) | |
| download | linux-c61b7cee672cc7276619ac0edf8f426e2f9e63e9.tar.gz linux-c61b7cee672cc7276619ac0edf8f426e2f9e63e9.tar.bz2 linux-c61b7cee672cc7276619ac0edf8f426e2f9e63e9.zip | |
HID: magicmouse: remove timestamp logic
The timestamps from the device are currently stored in the private data
structure. These aren't used, so remove them. I've left a comment
detailing the protocol for future reference.
Signed-off-by: Chase Douglas <chase.douglas@canonical.com>
Acked-by: Michael Poole <mdpoole@troilus.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/hid/hid-magicmouse.c | 18 |
1 files changed, 7 insertions, 11 deletions
diff --git a/drivers/hid/hid-magicmouse.c b/drivers/hid/hid-magicmouse.c index b74abf202e01..945850b42bc1 100644 --- a/drivers/hid/hid-magicmouse.c +++ b/drivers/hid/hid-magicmouse.c @@ -71,11 +71,6 @@ MODULE_PARM_DESC(report_undeciphered, "Report undeciphered multi-touch state fie * struct magicmouse_sc - Tracks Magic Mouse-specific data. * @input: Input device through which we report events. * @quirks: Currently unused. - * @last_timestamp: Timestamp from most recent (18-bit) touch report - * (units of milliseconds over short windows, but seems to - * increase faster when there are no touches). - * @delta_time: 18-bit difference between the two most recent touch - * reports from the mouse. * @ntouches: Number of touches in most recent touch report. * @scroll_accel: Number of consecutive scroll motions. * @scroll_jiffies: Time of last scroll motion. @@ -86,8 +81,6 @@ struct magicmouse_sc { struct input_dev *input; unsigned long quirks; - int last_timestamp; - int delta_time; int ntouches; int scroll_accel; unsigned long scroll_jiffies; @@ -247,7 +240,7 @@ static int magicmouse_raw_event(struct hid_device *hdev, { struct magicmouse_sc *msc = hid_get_drvdata(hdev); struct input_dev *input = msc->input; - int x, y, ts, ii, clicks, npoints; + int x, y, ii, clicks, npoints; switch (data[0]) { case 0x10: @@ -261,9 +254,6 @@ static int magicmouse_raw_event(struct hid_device *hdev, /* Expect six bytes of prefix, and N*8 bytes of touch data. */ if (size < 6 || ((size - 6) % 8) != 0) return 0; - ts = data[3] >> 6 | data[4] << 2 | data[5] << 10; - msc->delta_time = (ts - msc->last_timestamp) & 0x3ffff; - msc->last_timestamp = ts; npoints = (size - 6) / 8; msc->ntouches = 0; for (ii = 0; ii < npoints; ii++) @@ -279,6 +269,12 @@ static int magicmouse_raw_event(struct hid_device *hdev, x = (int)(((data[3] & 0x0c) << 28) | (data[1] << 22)) >> 22; y = (int)(((data[3] & 0x30) << 26) | (data[2] << 22)) >> 22; clicks = data[3]; + + /* The following bits provide a device specific timestamp. They + * are unused here. + * + * ts = data[3] >> 6 | data[4] << 2 | data[5] << 10; + */ break; case 0x20: /* Theoretically battery status (0-100), but I have * never seen it -- maybe it is only upon request. |