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yaml
---
r: 215571
b: refs/heads/master
c: a462230
h: refs/heads/master
i:
  215569: b0f028e
  215567: 048087c
v: v3
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Chase Douglas authored and Jiri Kosina committed Sep 3, 2010
1 parent dc4451e commit d5edb01
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Showing 4 changed files with 156 additions and 40 deletions.
2 changes: 1 addition & 1 deletion [refs]
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@@ -1,2 +1,2 @@
---
refs/heads/master: 6de048bf1dd2ad35fe9b2326bf9d6d23fb2fff7a
refs/heads/master: a462230e16acc8664145216da3c928d03556691a
1 change: 1 addition & 0 deletions trunk/drivers/hid/hid-core.c
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Expand Up @@ -1248,6 +1248,7 @@ static const struct hid_device_id hid_blacklist[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL4) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MIGHTYMOUSE) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICMOUSE) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICTRACKPAD) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) },
Expand Down
1 change: 1 addition & 0 deletions trunk/drivers/hid/hid-ids.h
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Original file line number Diff line number Diff line change
Expand Up @@ -63,6 +63,7 @@
#define USB_VENDOR_ID_APPLE 0x05ac
#define USB_DEVICE_ID_APPLE_MIGHTYMOUSE 0x0304
#define USB_DEVICE_ID_APPLE_MAGICMOUSE 0x030d
#define USB_DEVICE_ID_APPLE_MAGICTRACKPAD 0x030e
#define USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI 0x020e
#define USB_DEVICE_ID_APPLE_FOUNTAIN_ISO 0x020f
#define USB_DEVICE_ID_APPLE_GEYSER_ANSI 0x0214
Expand Down
192 changes: 153 additions & 39 deletions trunk/drivers/hid/hid-magicmouse.c
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Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,7 @@
* Apple "Magic" Wireless Mouse driver
*
* Copyright (c) 2010 Michael Poole <mdpoole@troilus.org>
* Copyright (c) 2010 Chase Douglas <chase.douglas@canonical.com>
*/

/*
Expand Down Expand Up @@ -53,7 +54,9 @@ static bool report_undeciphered;
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,
Expand All @@ -67,6 +70,15 @@ MODULE_PARM_DESC(report_undeciphered, "Report undeciphered multi-touch state fie

#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.
Expand All @@ -93,6 +105,7 @@ struct magicmouse_sc {
u8 size;
} touches[16];
int tracking_ids[16];
int single_touch_id;
};

static int magicmouse_firm_touch(struct magicmouse_sc *msc)
Expand Down Expand Up @@ -158,15 +171,29 @@ static void magicmouse_emit_buttons(struct magicmouse_sc *msc, int state)
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;
Expand Down Expand Up @@ -217,6 +244,13 @@ static void magicmouse_emit_touch(struct magicmouse_sc *msc, int raw_id, u8 *tda
}
}

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);
Expand All @@ -226,22 +260,23 @@ static void magicmouse_emit_touch(struct magicmouse_sc *msc, int raw_id, u8 *tda
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 hid_report *report, u8 *data, int size)
{
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:
Expand All @@ -251,7 +286,30 @@ static int magicmouse_raw_event(struct hid_device *hdev,
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;
Expand All @@ -277,6 +335,14 @@ static int magicmouse_raw_event(struct hid_device *hdev,
* 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.
*/
Expand All @@ -288,9 +354,25 @@ static int magicmouse_raw_event(struct hid_device *hdev,
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;
}
Expand Down Expand Up @@ -326,18 +408,27 @@ static void magicmouse_setup_input(struct input_dev *input, struct hid_device *h
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) {
Expand All @@ -347,16 +438,26 @@ static void magicmouse_setup_input(struct input_dev *input, struct hid_device *h
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) {
Expand Down Expand Up @@ -385,6 +486,8 @@ static int magicmouse_probe(struct hid_device *hdev,
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");
Expand All @@ -400,7 +503,16 @@ static int magicmouse_probe(struct hid_device *hdev,
/* 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;
Expand Down Expand Up @@ -451,8 +563,10 @@ static void magicmouse_remove(struct hid_device *hdev)
}

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);
Expand Down

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