* Apple "Magic" Wireless Mouse driver
*
* Copyright (c) 2010 Michael Poole <mdpoole@troilus.org>
+ * Copyright (c) 2010 Chase Douglas <chase.douglas@canonical.com>
*/
/*
module_param(report_undeciphered, bool, 0644);
MODULE_PARM_DESC(report_undeciphered, "Report undeciphered multi-touch state field using a MSC_RAW event");
-#define TOUCH_REPORT_ID 0x29
+#define TRACKPAD_REPORT_ID 0x28
+#define MOUSE_REPORT_ID 0x29
+#define DOUBLE_REPORT_ID 0xf7
/* These definitions are not precise, but they're close enough. (Bits
* 0x03 seem to indicate the aspect ratio of the touch, bits 0x70 seem
* to be some kind of bit mask -- 0x20 may be a near-field reading,
#define SCROLL_ACCEL_DEFAULT 7
+/* Single touch emulation should only begin when no touches are currently down.
+ * This is true when single_touch_id is equal to NO_TOUCHES. If multiple touches
+ * are down and the touch providing for single touch emulation is lifted,
+ * single_touch_id is equal to SINGLE_TOUCH_UP. While single touch emulation is
+ * occuring, single_touch_id corresponds with the tracking id of the touch used.
+ */
+#define NO_TOUCHES -1
+#define SINGLE_TOUCH_UP -2
+
/**
* struct magicmouse_sc - Tracks Magic Mouse-specific data.
* @input: Input device through which we report events.
u8 size;
} touches[16];
int tracking_ids[16];
+ int single_touch_id;
};
static int magicmouse_firm_touch(struct magicmouse_sc *msc)
static void magicmouse_emit_touch(struct magicmouse_sc *msc, int raw_id, u8 *tdata)
{
struct input_dev *input = msc->input;
- int id = (tdata[6] << 2 | tdata[5] >> 6) & 0xf;
- int x = (tdata[1] << 28 | tdata[0] << 20) >> 20;
- int y = -((tdata[2] << 24 | tdata[1] << 16) >> 20);
- int size = tdata[5] & 0x3f;
- int orientation = (tdata[6] >> 2) - 32;
- int touch_major = tdata[3];
- int touch_minor = tdata[4];
- int state = tdata[7] & TOUCH_STATE_MASK;
- int down = state != TOUCH_STATE_NONE;
+ int id, x, y, size, orientation, touch_major, touch_minor, state, down;
+
+ if (input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE) {
+ id = (tdata[6] << 2 | tdata[5] >> 6) & 0xf;
+ x = (tdata[1] << 28 | tdata[0] << 20) >> 20;
+ y = -((tdata[2] << 24 | tdata[1] << 16) >> 20);
+ size = tdata[5] & 0x3f;
+ orientation = (tdata[6] >> 2) - 32;
+ touch_major = tdata[3];
+ touch_minor = tdata[4];
+ state = tdata[7] & TOUCH_STATE_MASK;
+ down = state != TOUCH_STATE_NONE;
+ } else { /* USB_DEVICE_ID_APPLE_MAGICTRACKPAD */
+ id = (tdata[7] << 2 | tdata[6] >> 6) & 0xf;
+ x = (tdata[1] << 27 | tdata[0] << 19) >> 19;
+ y = -((tdata[3] << 30 | tdata[2] << 22 | tdata[1] << 14) >> 19);
+ size = tdata[6] & 0x3f;
+ orientation = (tdata[7] >> 2) - 32;
+ touch_major = tdata[4];
+ touch_minor = tdata[5];
+ state = tdata[8] & TOUCH_STATE_MASK;
+ down = state != TOUCH_STATE_NONE;
+ }
/* Store tracking ID and other fields. */
msc->tracking_ids[raw_id] = id;
}
}
+ if (down) {
+ msc->ntouches++;
+ if (msc->single_touch_id == NO_TOUCHES)
+ msc->single_touch_id = id;
+ } else if (msc->single_touch_id == id)
+ msc->single_touch_id = SINGLE_TOUCH_UP;
+
/* Generate the input events for this touch. */
if (report_touches && down) {
input_report_abs(input, ABS_MT_TRACKING_ID, id);
input_report_abs(input, ABS_MT_POSITION_X, x);
input_report_abs(input, ABS_MT_POSITION_Y, y);
- if (report_undeciphered)
- input_event(input, EV_MSC, MSC_RAW, tdata[7]);
+ if (report_undeciphered) {
+ if (input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE)
+ input_event(input, EV_MSC, MSC_RAW, tdata[7]);
+ else /* USB_DEVICE_ID_APPLE_MAGICTRACKPAD */
+ input_event(input, EV_MSC, MSC_RAW, tdata[8]);
+ }
input_mt_sync(input);
}
-
- if (down)
- msc->ntouches++;
}
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, ii, clicks, npoints;
+ int x = 0, y = 0, ii, clicks = 0, npoints;
switch (data[0]) {
case 0x10:
y = (__s16)(data[4] | data[5] << 8);
clicks = data[1];
break;
- case TOUCH_REPORT_ID:
+ case TRACKPAD_REPORT_ID:
+ /* Expect four bytes of prefix, and N*9 bytes of touch data. */
+ if (size < 4 || ((size - 4) % 9) != 0)
+ return 0;
+ npoints = (size - 4) / 9;
+ msc->ntouches = 0;
+ for (ii = 0; ii < npoints; ii++)
+ magicmouse_emit_touch(msc, ii, data + ii * 9 + 4);
+
+ /* We don't need an MT sync here because trackpad emits a
+ * BTN_TOUCH event in a new frame when all touches are released.
+ */
+ if (msc->ntouches == 0)
+ msc->single_touch_id = NO_TOUCHES;
+
+ clicks = data[1];
+
+ /* The following bits provide a device specific timestamp. They
+ * are unused here.
+ *
+ * ts = data[1] >> 6 | data[2] << 2 | data[3] << 10;
+ */
+ break;
+ case MOUSE_REPORT_ID:
/* 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;
*/
break;
+ case DOUBLE_REPORT_ID:
+ /* Sometimes the trackpad sends two touch reports in one
+ * packet.
+ */
+ magicmouse_raw_event(hdev, report, data + 2, data[1]);
+ magicmouse_raw_event(hdev, report, data + 2 + data[1],
+ size - 2 - data[1]);
+ break;
case 0x20: /* Theoretically battery status (0-100), but I have
* never seen it -- maybe it is only upon request.
*/
return 0;
}
- magicmouse_emit_buttons(msc, clicks & 3);
- input_report_rel(input, REL_X, x);
- input_report_rel(input, REL_Y, y);
+ if (input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE) {
+ magicmouse_emit_buttons(msc, clicks & 3);
+ input_report_rel(input, REL_X, x);
+ input_report_rel(input, REL_Y, y);
+ } else { /* USB_DEVICE_ID_APPLE_MAGICTRACKPAD */
+ input_report_key(input, BTN_MOUSE, clicks & 1);
+ input_report_key(input, BTN_TOUCH, msc->ntouches > 0);
+ input_report_key(input, BTN_TOOL_FINGER, msc->ntouches == 1);
+ input_report_key(input, BTN_TOOL_DOUBLETAP, msc->ntouches == 2);
+ input_report_key(input, BTN_TOOL_TRIPLETAP, msc->ntouches == 3);
+ input_report_key(input, BTN_TOOL_QUADTAP, msc->ntouches == 4);
+ if (msc->single_touch_id >= 0) {
+ input_report_abs(input, ABS_X,
+ msc->touches[msc->single_touch_id].x);
+ input_report_abs(input, ABS_Y,
+ msc->touches[msc->single_touch_id].y);
+ }
+ }
+
input_sync(input);
return 1;
}
input->dev.parent = hdev->dev.parent;
__set_bit(EV_KEY, input->evbit);
- __set_bit(BTN_LEFT, input->keybit);
- __set_bit(BTN_RIGHT, input->keybit);
- if (emulate_3button)
- __set_bit(BTN_MIDDLE, input->keybit);
- __set_bit(BTN_TOOL_FINGER, input->keybit);
-
- __set_bit(EV_REL, input->evbit);
- __set_bit(REL_X, input->relbit);
- __set_bit(REL_Y, input->relbit);
- if (emulate_scroll_wheel) {
- __set_bit(REL_WHEEL, input->relbit);
- __set_bit(REL_HWHEEL, input->relbit);
+
+ if (input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE) {
+ __set_bit(BTN_LEFT, input->keybit);
+ __set_bit(BTN_RIGHT, input->keybit);
+ if (emulate_3button)
+ __set_bit(BTN_MIDDLE, input->keybit);
+
+ __set_bit(EV_REL, input->evbit);
+ __set_bit(REL_X, input->relbit);
+ __set_bit(REL_Y, input->relbit);
+ if (emulate_scroll_wheel) {
+ __set_bit(REL_WHEEL, input->relbit);
+ __set_bit(REL_HWHEEL, input->relbit);
+ }
+ } else { /* USB_DEVICE_ID_APPLE_MAGICTRACKPAD */
+ __set_bit(BTN_MOUSE, input->keybit);
+ __set_bit(BTN_TOOL_FINGER, input->keybit);
+ __set_bit(BTN_TOOL_DOUBLETAP, input->keybit);
+ __set_bit(BTN_TOOL_TRIPLETAP, input->keybit);
+ __set_bit(BTN_TOOL_QUADTAP, input->keybit);
+ __set_bit(BTN_TOUCH, input->keybit);
}
if (report_touches) {
input_set_abs_params(input, ABS_MT_TOUCH_MAJOR, 0, 255, 4, 0);
input_set_abs_params(input, ABS_MT_TOUCH_MINOR, 0, 255, 4, 0);
input_set_abs_params(input, ABS_MT_ORIENTATION, -32, 31, 1, 0);
- input_set_abs_params(input, ABS_MT_POSITION_X, -1100, 1358,
- 4, 0);
+
/* Note: Touch Y position from the device is inverted relative
* to how pointer motion is reported (and relative to how USB
* HID recommends the coordinates work). This driver keeps
* the origin at the same position, and just uses the additive
* inverse of the reported Y.
*/
- input_set_abs_params(input, ABS_MT_POSITION_Y, -1589, 2047,
- 4, 0);
+ if (input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE) {
+ input_set_abs_params(input, ABS_MT_POSITION_X, -1100,
+ 1358, 4, 0);
+ input_set_abs_params(input, ABS_MT_POSITION_Y, -1589,
+ 2047, 4, 0);
+ } else { /* USB_DEVICE_ID_APPLE_MAGICTRACKPAD */
+ input_set_abs_params(input, ABS_X, -2909, 3167, 4, 0);
+ input_set_abs_params(input, ABS_Y, -2456, 2565, 4, 0);
+ input_set_abs_params(input, ABS_MT_POSITION_X, -2909,
+ 3167, 4, 0);
+ input_set_abs_params(input, ABS_MT_POSITION_Y, -2456,
+ 2565, 4, 0);
+ }
}
if (report_undeciphered) {
msc->quirks = id->driver_data;
hid_set_drvdata(hdev, msc);
+ msc->single_touch_id = NO_TOUCHES;
+
ret = hid_parse(hdev);
if (ret) {
dev_err(&hdev->dev, "magicmouse hid parse failed\n");
/* we are handling the input ourselves */
hidinput_disconnect(hdev);
- report = hid_register_report(hdev, HID_INPUT_REPORT, TOUCH_REPORT_ID);
+ if (id->product == USB_DEVICE_ID_APPLE_MAGICMOUSE)
+ report = hid_register_report(hdev, HID_INPUT_REPORT,
+ MOUSE_REPORT_ID);
+ else { /* USB_DEVICE_ID_APPLE_MAGICTRACKPAD */
+ report = hid_register_report(hdev, HID_INPUT_REPORT,
+ TRACKPAD_REPORT_ID);
+ report = hid_register_report(hdev, HID_INPUT_REPORT,
+ DOUBLE_REPORT_ID);
+ }
+
if (!report) {
dev_err(&hdev->dev, "unable to register touch report\n");
ret = -ENOMEM;
}
static const struct hid_device_id magic_mice[] = {
- { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICMOUSE),
- .driver_data = 0 },
+ { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
+ USB_DEVICE_ID_APPLE_MAGICMOUSE), .driver_data = 0 },
+ { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
+ USB_DEVICE_ID_APPLE_MAGICTRACKPAD), .driver_data = 0 },
{ }
};
MODULE_DEVICE_TABLE(hid, magic_mice);
git.openpandora.org / pandora-kernel.git / commitdiff