[PATCH] HID: plantronics: Additional PID for double volume key presses quirk

[Wade Wang]

Add the below headsets for double volume key presses quirk
        Plantronics EncorePro 500 Series  (047f:431e)
        Plantronics Blackwire_3325 Series (047f:430c)

Quote from previous patch by Maxim Mikityanskiy and Terry Junge
	'commit f567d6ef8606 ("HID: plantronics: Workaround for double volume
	 key presses")'
	'commit 3d57f36c89d8 ("HID: plantronics: Additional PIDs for double
	 volume key presses quirk")'
These Plantronics Series headset sends an opposite volume key following
each volume key press. This patch adds a quirk to hid-plantronics for this
product ID, which will ignore the second opposite volume key press if it
happens within 250 ms from the last one that was handled.

Signed-off-by: Wade Wang <wade.wang@xxxxxx>
---
 drivers/hid/hid-ids.h         |  2 ++
 drivers/hid/hid-plantronics.c | 11 +++++++++++
 2 files changed, 13 insertions(+)

diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 781c5aa29859..a0aaac98a891 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -1050,6 +1050,8 @@
 #define USB_DEVICE_ID_PLANTRONICS_BLACKWIRE_3220_SERIES	0xc056
 #define USB_DEVICE_ID_PLANTRONICS_BLACKWIRE_3215_SERIES	0xc057
 #define USB_DEVICE_ID_PLANTRONICS_BLACKWIRE_3225_SERIES	0xc058
+#define USB_DEVICE_ID_PLANTRONICS_BLACKWIRE_3325_SERIES	0x430c
+#define USB_DEVICE_ID_PLANTRONICS_ENCOREPRO_500_SERIES		0x431e
 
 #define USB_VENDOR_ID_PANASONIC		0x04da
 #define USB_DEVICE_ID_PANABOARD_UBT780	0x1044
diff --git a/drivers/hid/hid-plantronics.c b/drivers/hid/hid-plantronics.c
index 3d414ae194ac..2a19f3646ecb 100644
--- a/drivers/hid/hid-plantronics.c
+++ b/drivers/hid/hid-plantronics.c
@@ -38,8 +38,10 @@
 			    (usage->hid & HID_USAGE_PAGE) == HID_UP_CONSUMER)
 
 #define PLT_QUIRK_DOUBLE_VOLUME_KEYS BIT(0)
+#define PLT_QUIRK_FOLLOWED_VOLUME_UP_DN_KEYS BIT(1)
 
 #define PLT_DOUBLE_KEY_TIMEOUT 5 /* ms */
+#define PLT_FOLLOWED_KEY_TIMEOUT 250 /* ms */
 
 struct plt_drv_data {
 	unsigned long device_type;
@@ -134,6 +136,9 @@ static int plantronics_event(struct hid_device *hdev, struct hid_field *field,
 		cur_ts = jiffies;
 		if (jiffies_to_msecs(cur_ts - prev_ts) <= PLT_DOUBLE_KEY_TIMEOUT)
 			return 1; /* Ignore the repeated key. */
+		if ((drv_data->quirks & PLT_QUIRK_FOLLOWED_VOLUME_UP_DN_KEYS)
+		 && jiffies_to_msecs(cur_ts - prev_ts) <= PLT_FOLLOWED_KEY_TIMEOUT)
+			return 1; /* Ignore the followed volume key. */
 
 		drv_data->last_volume_key_ts = cur_ts;
 	}
@@ -210,6 +215,12 @@ static const struct hid_device_id plantronics_devices[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_PLANTRONICS,
 					 USB_DEVICE_ID_PLANTRONICS_BLACKWIRE_3225_SERIES),
 		.driver_data = PLT_QUIRK_DOUBLE_VOLUME_KEYS },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_PLANTRONICS,
+					 USB_DEVICE_ID_PLANTRONICS_BLACKWIRE_3325_SERIES),
+		.driver_data = PLT_QUIRK_DOUBLE_VOLUME_KEYS|PLT_QUIRK_FOLLOWED_VOLUME_UP_DN_KEYS },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_PLANTRONICS,
+					 USB_DEVICE_ID_PLANTRONICS_ENCOREPRO_500_SERIES),
+		.driver_data = PLT_QUIRK_DOUBLE_VOLUME_KEYS|PLT_QUIRK_FOLLOWED_VOLUME_UP_DN_KEYS },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_PLANTRONICS, HID_ANY_ID) },
 	{ }
 };
-- 
2.34.1