Some HID++ 1.0 (27 MHz) mice have a wheel which clicks left / right
for horizontal scrolling and some extra buttons which are not reported
through the regular mouse input report.
This commits adds support for using the special HID++ input reports for
the hwheel and extra buttons, so that these will work under Linux.
Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
---
drivers/hid/hid-logitech-hidpp.c | 86 ++++++++++++++++++++++++++++++++
1 file changed, 86 insertions(+)
diff --git a/drivers/hid/hid-logitech-hidpp.c b/drivers/hid/hid-logitech-hidpp.c
index f02a665dfebe..08040ef095ef 100644
--- a/drivers/hid/hid-logitech-hidpp.c
+++ b/drivers/hid/hid-logitech-hidpp.c
@@ -53,6 +53,9 @@ MODULE_PARM_DESC(disable_tap_to_click,
#define HIDPP_REPORT_LONG_LENGTH 20
#define HIDPP_REPORT_VERY_LONG_LENGTH 64
+#define HIDPP_SUB_ID_ROLLER 0x05
+#define HIDPP_SUB_ID_MOUSE_EXTRA_BTNS 0x06
+
#define HIDPP_QUIRK_CLASS_WTP BIT(0)
#define HIDPP_QUIRK_CLASS_M560 BIT(1)
#define HIDPP_QUIRK_CLASS_K400 BIT(2)
@@ -68,6 +71,7 @@ MODULE_PARM_DESC(disable_tap_to_click,
#define HIDPP_QUIRK_HI_RES_SCROLL_1P0 BIT(26)
#define HIDPP_QUIRK_HI_RES_SCROLL_X2120 BIT(27)
#define HIDPP_QUIRK_HI_RES_SCROLL_X2121 BIT(28)
+#define HIDPP_QUIRK_HIDPP_HWHEEL_AND_EXTRA_BTNS BIT(29)
/* Convenience constant to check for any high-res support. */
#define HIDPP_QUIRK_HI_RES_SCROLL (HIDPP_QUIRK_HI_RES_SCROLL_1P0 | \
@@ -2774,6 +2778,73 @@ static int g920_get_config(struct hidpp_device *hidpp)
return 0;
}
+/* -------------------------------------------------------------------------- */
+/* HID++1.0 mice which use HID++ report for hwheel and extra buttons */
+/* -------------------------------------------------------------------------- */
+
+static int hidpp10_hwheel_connect(struct hid_device *hdev, bool connected)
+{
+ struct hidpp_device *hidpp = hid_get_drvdata(hdev);
+ int ret;
+
+ /* Bit 5 enables HID++ 1.0 hwheel reporting */
+ ret = hidpp10_set_register_bit(hidpp, HIDPP_REG_GENERAL, 0, 5);
+ if (ret)
+ return ret;
+
+ /* Bit 3 enables HID++ 1.0 extra buttons reporting */
+ return hidpp10_set_register_bit(hidpp, HIDPP_REG_GENERAL, 0, 3);
+}
+
+static int hidpp10_hwheel_raw_event(struct hidpp_device *hidpp,
+ u8 *data, int size)
+{
+ if (!hidpp->input)
+ return -EINVAL;
+
+ if (size < 7)
+ return 0;
+
+ if (data[0] == REPORT_ID_HIDPP_SHORT &&
+ data[2] == HIDPP_SUB_ID_ROLLER) {
+ s8 value = data[4];
+
+ input_report_rel(hidpp->input, REL_HWHEEL, value);
+ input_report_rel(hidpp->input, REL_HWHEEL_HI_RES, value * 120);
+ input_sync(hidpp->input);
+ }
+
+ if (data[0] == REPORT_ID_HIDPP_SHORT &&
+ data[2] == HIDPP_SUB_ID_MOUSE_EXTRA_BTNS) {
+ int i;
+
+ for (i = 0; i < 8; i++)
+ input_report_key(hidpp->input, BTN_0 + i,
+ (data[4] & (1 << i)));
+ input_sync(hidpp->input);
+ }
+
+ return 1;
+}
+
+static void hidpp10_hwheel_populate_input(struct hidpp_device *hidpp,
+ struct input_dev *input_dev, bool origin_is_hid_core)
+{
+ __set_bit(EV_REL, input_dev->evbit);
+ __set_bit(REL_HWHEEL, input_dev->relbit);
+ __set_bit(REL_HWHEEL_HI_RES, input_dev->relbit);
+
+ __set_bit(EV_KEY, input_dev->evbit);
+ __set_bit(BTN_0, input_dev->keybit);
+ __set_bit(BTN_1, input_dev->keybit);
+ __set_bit(BTN_2, input_dev->keybit);
+ __set_bit(BTN_3, input_dev->keybit);
+ __set_bit(BTN_4, input_dev->keybit);
+ __set_bit(BTN_5, input_dev->keybit);
+ __set_bit(BTN_6, input_dev->keybit);
+ __set_bit(BTN_7, input_dev->keybit);
+}
+
/* -------------------------------------------------------------------------- */
/* High-resolution scroll wheels */
/* -------------------------------------------------------------------------- */
@@ -2858,6 +2929,8 @@ static void hidpp_populate_input(struct hidpp_device *hidpp,
wtp_populate_input(hidpp, input, origin_is_hid_core);
else if (hidpp->quirks & HIDPP_QUIRK_CLASS_M560)
m560_populate_input(hidpp, input, origin_is_hid_core);
+ else if (hidpp->quirks & HIDPP_QUIRK_HIDPP_HWHEEL_AND_EXTRA_BTNS)
+ hidpp10_hwheel_populate_input(hidpp, input, origin_is_hid_core);
}
static int hidpp_input_configured(struct hid_device *hdev,
@@ -2929,6 +3002,9 @@ static int hidpp_raw_hidpp_event(struct hidpp_device *hidpp, u8 *data,
return ret;
}
+ if (hidpp->quirks & HIDPP_QUIRK_HIDPP_HWHEEL_AND_EXTRA_BTNS)
+ hidpp10_hwheel_raw_event(hidpp, data, size);
+
return 0;
}
@@ -3174,6 +3250,10 @@ static void hidpp_connect_event(struct hidpp_device *hidpp)
ret = k400_connect(hdev, connected);
if (ret)
return;
+ } else if (hidpp->quirks & HIDPP_QUIRK_HIDPP_HWHEEL_AND_EXTRA_BTNS) {
+ ret = hidpp10_hwheel_connect(hdev, connected);
+ if (ret)
+ return;
}
/* the device is already connected, we can ask for its name and
@@ -3493,6 +3573,12 @@ static const struct hid_device_id hidpp_devices[] = {
{ /* Solar Keyboard Logitech K750 */
LDJ_DEVICE(0x4002),
.driver_data = HIDPP_QUIRK_CLASS_K750 },
+ { /* Mouse from Logitech "Cordless Rechargeable Desktop" (M-RAK89D) */
+ LDJ_DEVICE(0x0029),
+ .driver_data = HIDPP_QUIRK_HIDPP_HWHEEL_AND_EXTRA_BTNS },
+ { /* Mouse Logitech MX3200 (M-RAZ105) */
+ LDJ_DEVICE(0x003a),
+ .driver_data = HIDPP_QUIRK_HIDPP_HWHEEL_AND_EXTRA_BTNS },
{ LDJ_DEVICE(HID_ANY_ID) },
--
2.21.0
