This patch allows WirelessDeviceStatus (0x1d4b) events to be detected as
connection events in the hid-logitech-hidpp module.
Devices with HIDPP_QUIRK_WIRELESS_DEVICE_STATUS use WirelessDeviceStatus
instead of traditional connect events. Since all Bluetooth LE devices seem
to act this way, HIDPP_QUIRK_CLASS_BLUETOOTH_LE aliases this quirk.
Signed-off-by: Mazin Rezk <mn...@protonmail.com>
---
drivers/hid/hid-logitech-hidpp.c | 42 ++++++++++++++++++++++++++++----
1 file changed, 37 insertions(+), 5 deletions(-)
diff --git a/drivers/hid/hid-logitech-hidpp.c b/drivers/hid/hid-logitech-hidpp.c
index 997b1056850a..9b3df57ca857 100644
--- a/drivers/hid/hid-logitech-hidpp.c
+++ b/drivers/hid/hid-logitech-hidpp.c
@@ -60,6 +60,7 @@ MODULE_PARM_DESC(disable_tap_to_click,
#define HIDPP_QUIRK_CLASS_K750 BIT(4)
/* bits 2..15 are reserved for classes */
+#define HIDPP_QUIRK_WIRELESS_DEVICE_STATUS BIT(19)
#define HIDPP_QUIRK_MISSING_SHORT_REPORTS BIT(20)
/* #define HIDPP_QUIRK_CONNECT_EVENTS BIT(21) disabled */
#define HIDPP_QUIRK_WTP_PHYSICAL_BUTTONS BIT(22)
@@ -82,7 +83,8 @@ MODULE_PARM_DESC(disable_tap_to_click,
HIDPP_QUIRK_HI_RES_SCROLL_X2120 | \
HIDPP_QUIRK_HI_RES_SCROLL_X2121)
-#define HIDPP_QUIRK_CLASS_BLUETOOTH_LE HIDPP_QUIRK_MISSING_SHORT_REPORTS
+#define HIDPP_QUIRK_CLASS_BLUETOOTH_LE (HIDPP_QUIRK_MISSING_SHORT_REPORTS | \
+ HIDPP_QUIRK_WIRELESS_DEVICE_STATUS)
#define HIDPP_QUIRK_DELAYED_INIT HIDPP_QUIRK_NO_HIDINPUT
@@ -189,6 +191,8 @@ struct hidpp_device {
struct hidpp_battery battery;
struct hidpp_scroll_counter vertical_wheel_counter;
+
+ u8 wireless_feature_index;
};
/* HID++ 1.0 error codes */
@@ -402,10 +406,14 @@ static inline bool hidpp_match_error(struct hidpp_report
*question,
(answer->fap.params[0] == question->fap.funcindex_clientid);
}
-static inline bool hidpp_report_is_connect_event(struct hidpp_report *report)
+static inline bool hidpp_report_is_connect_event(struct hidpp_device *hidpp,
+ struct hidpp_report *report)
{
- return (report->report_id == REPORT_ID_HIDPP_SHORT) &&
- (report->rap.sub_id == 0x41);
+ return ((hidpp->quirks & HIDPP_QUIRK_WIRELESS_DEVICE_STATUS) &&
+ (report->fap.feature_index == hidpp->wireless_feature_index)) ||
+ (((report->report_id == REPORT_ID_HIDPP_SHORT) ||
+ (hidpp->quirks & HIDPP_QUIRK_MISSING_SHORT_REPORTS)) &&
+ (report->rap.sub_id == 0x41));
}
/**
@@ -1282,6 +1290,24 @@ static int hidpp_battery_get_property(struct
power_supply *psy,
return ret;
}
+/* --------------------------------------------------------------------------
*/
+/* 0x1d4b: Wireless device status
*/
+/* --------------------------------------------------------------------------
*/
+#define HIDPP_PAGE_WIRELESS_DEVICE_STATUS 0x1d4b
+
+static int hidpp_set_wireless_feature_index(struct hidpp_device *hidpp)
+{
+ u8 feature_type;
+ int ret;
+
+ ret = hidpp_root_get_feature(hidpp,
+ HIDPP_PAGE_WIRELESS_DEVICE_STATUS,
+ &hidpp->wireless_feature_index,
+ &feature_type);
+
+ return ret;
+}
+
/* --------------------------------------------------------------------------
*/
/* 0x2120: Hi-resolution scrolling
*/
/* --------------------------------------------------------------------------
*/
@@ -3077,7 +3103,7 @@ static int hidpp_raw_hidpp_event(struct hidpp_device
*hidpp, u8 *data,
}
}
- if (unlikely(hidpp_report_is_connect_event(report))) {
+ if (unlikely(hidpp_report_is_connect_event(hidpp, report))) {
atomic_set(&hidpp->connected,
!(report->rap.params[0] & (1 << 6)));
if (schedule_work(&hidpp->work) == 0)
@@ -3624,6 +3650,12 @@ static int hidpp_probe(struct hid_device *hdev, const
struct hid_device_id *id)
hidpp_overwrite_name(hdev);
}
+ if (connected && (hidpp->quirks & HIDPP_QUIRK_WIRELESS_DEVICE_STATUS)) {
+ ret = hidpp_set_wireless_feature_index(hidpp);
+ if (ret)
+ goto hid_hw_init_fail;
+ }
+
if (connected && (hidpp->quirks & HIDPP_QUIRK_CLASS_WTP)) {
ret = wtp_get_config(hidpp);
if (ret)
--
2.23.0
