From: Goffredo Baroncelli <kreijack@xxxxxxxxx>
The Logitech M560 is a wireless mouse designed for windows 8 which uses
the unifying receiver.
Compared to a standard one, some buttons (the middle one and the
two ones placed on the side) are bound to a key combination
instead of a classic "mouse" button.
The device shows up as a mouse and keyboard combination: when the middle
button is pressed it sends a key (as keyboard) combination, the same happens
for the two side button. The left/right/wheel work as expected from a
mouse. To complicate things further, the middle button sends different keys
combinations between odd and even presses.
In the "even" press it also sends a left click. But the worst thing
is that no event is generated when the middle button is released.
It is possible to re-configure the mouse sending a command (see function
m560_send_config_command()). After this command the mouse sends some
useful data when the buttons are pressed and/or released
Signed-off-by: Goffredo Baroncelli <kreijack@xxxxxxxxx>
---
drivers/hid/hid-logitech-hidpp.c | 243 ++++++++++++++++++++++++++++++++++++++-
1 file changed, 240 insertions(+), 3 deletions(-)
diff --git a/drivers/hid/hid-logitech-hidpp.c b/drivers/hid/hid-logitech-hidpp.c
index b3cf6fd..d7e33c8 100644
--- a/drivers/hid/hid-logitech-hidpp.c
+++ b/drivers/hid/hid-logitech-hidpp.c
@@ -40,8 +40,9 @@ MODULE_PARM_DESC(disable_raw_mode,
#define HIDPP_REPORT_LONG_LENGTH 20
#define HIDPP_QUIRK_CLASS_WTP BIT(0)
+#define HIDPP_QUIRK_CLASS_M560 BIT(1)
-/* bits 1..20 are reserved for classes */
+/* bits 2..20 are reserved for classes */
#define HIDPP_QUIRK_DELAYED_INIT BIT(21)
#define HIDPP_QUIRK_WTP_PHYSICAL_BUTTONS BIT(22)
#define HIDPP_QUIRK_MULTI_INPUT BIT(23)
@@ -942,6 +943,223 @@ static int wtp_connect(struct hid_device *hdev, bool connected)
}
/* -------------------------------------------------------------------------- */
+/* Logitech M560 devices */
+/* -------------------------------------------------------------------------- */
+
+/*
+ * Logitech M560 protocol overview
+ *
+ * The Logitech M560 mouse, is designed for windows 8. When the middle and/or
+ * the sides buttons are pressed, it sends some keyboard keys events
+ * instead of buttons ones.
+ * To complicate further the things, the middle button keys sequence
+ * is different from the odd press and the even press.
+ *
+ * forward button -> Super_R
+ * backward button -> Super_L+'d' (press only)
+ * middle button -> 1st time: Alt_L+SuperL+XF86TouchpadOff (press only)
+ * 2nd time: left-click (press only)
+ * NB: press-only means that when the button is pressed, the
+ * KeyPress/ButtonPress and KeyRelease/ButtonRelease events are generated
+ * together sequentially; instead when the button is released, no event is
+ * generated !
+ *
+ * With the command
+ * 10<xx>0a 3500af03 (where <xx> is the mouse id),
+ * the mouse reacts differently:
+ * - it never send a keyboard key event
+ * - for the three mouse button it sends:
+ * middle button press 11<xx>0a 3500af00...
+ * side 1 button (forward) press 11<xx>0a 3500b000...
+ * side 2 button (backward) press 11<xx>0a 3500ae00...
+ * middle/side1/side2 button release 11<xx>0a 35000000...
+ */
+
+static const u8 m560_config_parameter[] = {0x00, 0xaf, 0x03};
+
+struct m560_private_data {
+ struct input_dev *input;
+};
+
+/* how the button are mapped in the report */
+#define M560_MOUSE_BTN_LEFT 0x01
+#define M560_MOUSE_BTN_RIGHT 0x02
+#define M560_MOUSE_BTN_MIDDLE 0x04
+#define M560_MOUSE_BTN_WHEEL_LEFT 0x08
+#define M560_MOUSE_BTN_WHEEL_RIGHT 0x10
+#define M560_MOUSE_BTN_FORWARD 0x20
+#define M560_MOUSE_BTN_BACKWARD 0x40
+
+#define M560_SUB_ID 0x0a
+#define M560_BUTTON_MODE_REGISTER 0x35
+
+/*
+ * m560_send_config_command - send the config_command to the mouse
+ *
+ * @dev: hid device where the mouse belongs
+ *
+ * @return: 0 OK
+ */
+static int m560_send_config_command(struct hid_device *hdev)
+{
+ struct hidpp_report response;
+ struct hidpp_device *hidpp_dev = hid_get_drvdata(hdev);
+ int ret;
+
+ ret = hidpp_send_rap_command_sync(
+ hidpp_dev,
+ REPORT_ID_HIDPP_SHORT,
+ M560_SUB_ID,
+ M560_BUTTON_MODE_REGISTER,
+ (u8 *)m560_config_parameter,
+ sizeof(m560_config_parameter),
+ &response
+ );
+
+ return ret;
+}
+
+/*
+ * m560_allocate - allocate the M560 mouse private data, and link it
+ * to the hidpp_device struct
+ *
+ * @hdev: hidpp device where the mouse belongs
+ *
+ * @return: 0 OK
+ */
+static int m560_allocate(struct hid_device *hdev)
+{
+ struct hidpp_device *hidpp = hid_get_drvdata(hdev);
+ struct m560_private_data *d;
+
+ d = devm_kzalloc(&hdev->dev, sizeof(struct m560_private_data),
+ GFP_KERNEL);
+ if (!d)
+ return -ENOMEM;
+
+ hidpp->private_data = d;
+
+ return 0;
+};
+
+/*
+ * m560_raw_event - process raw event
+ */
+static int m560_raw_event(struct hid_device *hdev, u8 *data, int size)
+{
+ struct hidpp_device *hidpp = hid_get_drvdata(hdev);
+ struct m560_private_data *mydata = hidpp->private_data;
+
+ /* check if the data is a mouse related report */
+ if (data[0] != 0x02 && data[2] != M560_SUB_ID)
+ return 0;
+
+ if (data[0] == REPORT_ID_HIDPP_LONG &&
+ data[2] == M560_SUB_ID && data[06] == 0x00) {
+ /*
+ * m560 mouse button report
+ *
+ * data[0] = 0x11
+ * data[1] = deviceid
+ * data[2] = 0x0a
+ * data[5] = button (0xaf->middle, 0xb0->forward,
+ * 0xaf ->backward, 0x00->release all)
+ * data[6] = 0x00
+ */
+
+ int btn;
+
+ /* check if the event is a button */
+ btn = data[5];
+ if (btn != 0x00 && btn != 0xb0 && btn != 0xae && btn != 0xaf)
+ return 1;
+
+ if (btn == 0xaf) {
+ input_report_key(mydata->input, BTN_MIDDLE, 1);
+ } else if (btn == 0xb0) {
+ input_report_key(mydata->input, BTN_FORWARD, 1);
+ } else if (btn == 0xae) {
+ input_report_key(mydata->input, BTN_BACK, 1);
+ } else if (btn == 0x00) {
+ input_report_key(mydata->input, BTN_BACK, 0);
+ input_report_key(mydata->input, BTN_FORWARD, 0);
+ input_report_key(mydata->input, BTN_MIDDLE, 0);
+ }
+
+ input_sync(mydata->input);
+
+ } else if (data[0] == 0x02) {
+ /*
+ * Logitech M560 mouse report
+ *
+ * data[0] = type (0x02)
+ * data[1..2] = buttons
+ * data[3..5] = xy
+ * data[6] = wheel
+ */
+
+ int v;
+ int btn = data[1];
+
+ input_report_key(mydata->input, BTN_LEFT,
+ !!(btn & M560_MOUSE_BTN_LEFT));
+ input_report_key(mydata->input, BTN_RIGHT,
+ !!(btn & M560_MOUSE_BTN_RIGHT));
+
+ if (btn & M560_MOUSE_BTN_WHEEL_LEFT)
+ input_report_rel(mydata->input, REL_HWHEEL, -1);
+ else if (btn & M560_MOUSE_BTN_WHEEL_RIGHT)
+ input_report_rel(mydata->input, REL_HWHEEL, 1);
+
+ v = (int)data[3] | (int)((data[4] & 0x0f) << 8);
+ if (v & (1<<11))
+ v = ~0xfff | v;
+ input_report_rel(mydata->input, REL_X, v);
+ v = (int)(data[4] >> 4) | (int)(data[5] << 4);
+ if (v & (1<<11))
+ v = ~0xfff | v;
+ input_report_rel(mydata->input, REL_Y, v);
+ v = (int)data[6];
+ if (v & (1<<7))
+ v = ~0xff | v;
+ input_report_rel(mydata->input, REL_WHEEL, v);
+
+ input_sync(mydata->input);
+ }
+
+ return 0;
+}
+
+/*
+ * config the input device
+ */
+static void m560_populate_input(struct hidpp_device *hidpp,
+ struct input_dev *input_dev, bool origin_is_hid_core)
+{
+ struct m560_private_data *mydata = hidpp->private_data;
+
+ if ((hidpp->quirks & HIDPP_QUIRK_MULTI_INPUT) && origin_is_hid_core)
+ /* this is the generic hid-input call */
+ return;
+
+ mydata->input = input_dev;
+
+ __set_bit(EV_KEY, mydata->input->evbit);
+ __set_bit(BTN_MIDDLE, mydata->input->keybit);
+ __set_bit(BTN_RIGHT, mydata->input->keybit);
+ __set_bit(BTN_LEFT, mydata->input->keybit);
+ __set_bit(BTN_BACK, mydata->input->keybit);
+ __set_bit(BTN_FORWARD, mydata->input->keybit);
+
+ __set_bit(EV_REL, mydata->input->evbit);
+ __set_bit(REL_X, mydata->input->relbit);
+ __set_bit(REL_Y, mydata->input->relbit);
+ __set_bit(REL_WHEEL, mydata->input->relbit);
+ __set_bit(REL_HWHEEL, mydata->input->relbit);
+
+}
+
+/* -------------------------------------------------------------------------- */
/* Generic HID++ devices */
/* -------------------------------------------------------------------------- */
@@ -953,6 +1171,9 @@ static int hidpp_input_mapping(struct hid_device *hdev, struct hid_input *hi,
if (hidpp->quirks & HIDPP_QUIRK_CLASS_WTP)
return wtp_input_mapping(hdev, hi, field, usage, bit, max);
+ else if (hidpp->quirks & HIDPP_QUIRK_CLASS_M560 &&
+ field->application != HID_GD_MOUSE)
+ return -1;
return 0;
}
@@ -962,6 +1183,8 @@ static void hidpp_populate_input(struct hidpp_device *hidpp,
{
if (hidpp->quirks & HIDPP_QUIRK_CLASS_WTP)
wtp_populate_input(hidpp, input, origin_is_hid_core);
+ if (hidpp->quirks & HIDPP_QUIRK_CLASS_M560)
+ m560_populate_input(hidpp, input, origin_is_hid_core);
}
static void hidpp_input_configured(struct hid_device *hdev,
@@ -1049,6 +1272,8 @@ static int hidpp_raw_event(struct hid_device *hdev, struct hid_report *report,
if (hidpp->quirks & HIDPP_QUIRK_CLASS_WTP)
return wtp_raw_event(hdev, data, size);
+ else if (hidpp->quirks & HIDPP_QUIRK_CLASS_M560)
+ return m560_raw_event(hidpp->hid_dev, data, size);
return 0;
}
@@ -1126,6 +1351,8 @@ static void hidpp_connect_event(struct hidpp_device *hidpp)
ret = wtp_connect(hdev, connected);
if (ret)
return;
+ } else if ((hidpp->quirks & HIDPP_QUIRK_CLASS_M560) && connected) {
+ m560_send_config_command(hdev);
}
if (!connected || hidpp->delayed_input)
@@ -1201,7 +1428,12 @@ static int hidpp_probe(struct hid_device *hdev, const struct hid_device_id *id)
if (hidpp->quirks & HIDPP_QUIRK_CLASS_WTP) {
ret = wtp_allocate(hdev, id);
if (ret)
- goto wtp_allocate_fail;
+ goto allocate_fail;
+ }
+ if (hidpp->quirks & HIDPP_QUIRK_CLASS_M560) {
+ ret = m560_allocate(hdev);
+ if (ret)
+ goto allocate_fail;
}
INIT_WORK(&hidpp->work, delayed_work_cb);
@@ -1268,7 +1500,7 @@ hid_hw_start_fail:
hid_parse_fail:
cancel_work_sync(&hidpp->work);
mutex_destroy(&hidpp->send_mutex);
-wtp_allocate_fail:
+allocate_fail:
hid_set_drvdata(hdev, NULL);
return ret;
}
@@ -1301,6 +1533,11 @@ static const struct hid_device_id hidpp_devices[] = {
USB_VENDOR_ID_LOGITECH, 0x4102),
.driver_data = HIDPP_QUIRK_DELAYED_INIT | HIDPP_QUIRK_MULTI_INPUT |
HIDPP_QUIRK_CLASS_WTP },
+ { /* Mouse logitech M560 */
+ HID_DEVICE(BUS_USB, HID_GROUP_LOGITECH_DJ_DEVICE,
+ USB_VENDOR_ID_LOGITECH, 0x402d),
+ .driver_data = HIDPP_QUIRK_DELAYED_INIT |
+ HIDPP_QUIRK_CLASS_M560 },
{ HID_DEVICE(BUS_USB, HID_GROUP_LOGITECH_DJ_DEVICE,
USB_VENDOR_ID_LOGITECH, HID_ANY_ID)},
--
2.1.4
--
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