Thread (1 message) 1 message, 1 author, 2021-04-10

Re: [PATCH] [v2] Input: Add "Share" button to Microsoft Xbox One controller.

From: Chris Ye <hidden>
Date: 2021-04-10 06:08:55
Also in: lkml

Possibly related (same subject, not in this thread)

From the product information site
https://www.xbox.com/en-US/accessories/controllers/xbox-wireless-controller
this button is referred as "Share button":
"Stay on target with textured grip and a hybrid D-pad. Seamlessly
capture and share content with a dedicated Share button. Quickly pair
with, play on, and switch between devices "
Should we override the product button name and name it "Select" in
driver?   I am ok with either way but can we have a name everyone can
agree on and move forward?

Thanks!
Chris


On Tue, Mar 23, 2021 at 2:52 PM Chris Ye [off-list ref] wrote:
The name "Share button" is a product name from Microsoft and they choose the button to be used for "record" as the device firmware maps the button to Consumer(Record) HID usage.
Can we accept the patch to make the "Share button" to work consistently under USB mode, same as Bluetooth mode?

Thanks!
Chris

On Thu, Mar 4, 2021 at 11:18 PM Bastien Nocera [off-list ref] wrote:
quoted
On Thu, 2021-03-04 at 20:42 -0800, Roderick Colenbrander wrote:
quoted
(resend in plain text)
+benjamin in a more explicit way

Hi Chris,

I see the need for the Record button. I wonder what makes sense from
the Linux kernel perspective. For DualShock 4 and DualSense there is a
Share button too (it introduced it). For DualShock 4 that was mapped
to 'Select' I think per Linux gamepad spec. For DualSense in 5.12 we
did the same... Though if there is a true 'Record' button we want to
use moving forward. Maybe we still want to change the button
definition for DualSensein 5.12 while we can...

It would be good to get some consensus on these buttons.
The XBox One Series X controller has 3 of those "middle" buttons, 2
equivalent to Start/Select on older controllers (that were already
present on older versions of the pad) and Share.
https://www.xbox.com/en-US/accessories/controllers/xbox-wireless-controller

The Options buttons on the DS4 replaces Start and Select:
https://manuals.playstation.net/document/en/ps4/basic/pn_controller.html
so Share got added, but Select taken away, which is why you had to
label it Select in the driver.

I don't really see how to fix that without retroactively re-adding
buttons to the DS4 controller ;)
quoted
Thanks,
Roderick


On Thu, Mar 4, 2021 at 6:25 PM Chris Ye [off-list ref] wrote:
quoted
Hi Bastien,  just want to follow up again on this.  I've checked
again
with the Xbox team that the "Share button" is given for the product,
the HID usage profile and mapping to RECORD is what Xbox team expects
and they want the same mapping for USB.

Thanks!
Chris


On Tue, Mar 2, 2021 at 3:57 PM Chris Ye [off-list ref] wrote:
quoted
Hi Bastien,
    The "Share button" is a name Microsoft calls it, it actually
has
HID descriptor defined in the bluetooth interface, which the HID
usage
is:
consumer 0xB2:
0x05, 0x0C,        //   Usage Page (Consumer)
0x0A, 0xB2, 0x00,  //   Usage (Record)
Microsoft wants the same key code to be generated consistently for
USB
and bluetooth.
Thanks!
Chris


On Tue, Mar 2, 2021 at 1:50 AM Bastien Nocera [off-list ref]
wrote:
quoted
On Thu, 2021-02-25 at 05:32 +0000, Chris Ye wrote:
quoted
Add "Share" button input capability and input event mapping for
Microsoft Xbox One controller.
Fixed Microsoft Xbox One controller share button not working
under USB
connection.

Signed-off-by: Chris Ye <redacted>
---
 drivers/input/joystick/xpad.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/drivers/input/joystick/xpad.c
b/drivers/input/joystick/xpad.c
index 9f0d07dcbf06..0c3374091aff 100644
--- a/drivers/input/joystick/xpad.c
+++ b/drivers/input/joystick/xpad.c
@@ -79,6 +79,7 @@
 #define MAP_DPAD_TO_BUTTONS            (1 << 0)
 #define MAP_TRIGGERS_TO_BUTTONS                (1 << 1)
 #define MAP_STICKS_TO_NULL             (1 << 2)
+#define MAP_SHARE_BUTTON               (1 << 3)
 #define DANCEPAD_MAP_CONFIG    (MAP_DPAD_TO_BUTTONS
quoted
                 \
                                MAP_TRIGGERS_TO_BUTTONS |
MAP_STICKS_TO_NULL)
@@ -130,6 +131,7 @@ static const struct xpad_device {
        { 0x045e, 0x02e3, "Microsoft X-Box One Elite pad", 0,
XTYPE_XBOXONE },
        { 0x045e, 0x02ea, "Microsoft X-Box One S pad", 0,
XTYPE_XBOXONE
},
        { 0x045e, 0x0719, "Xbox 360 Wireless Receiver",
MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360W },
+       { 0x045e, 0x0b12, "Microsoft X-Box One X pad",
MAP_SHARE_BUTTON, XTYPE_XBOXONE },
        { 0x046d, 0xc21d, "Logitech Gamepad F310", 0,
XTYPE_XBOX360 },
        { 0x046d, 0xc21e, "Logitech Gamepad F510", 0,
XTYPE_XBOX360 },
        { 0x046d, 0xc21f, "Logitech Gamepad F710", 0,
XTYPE_XBOX360 },
@@ -862,6 +864,8 @@ static void xpadone_process_packet(struct
usb_xpad
*xpad, u16 cmd, unsigned char
        /* menu/view buttons */
        input_report_key(dev, BTN_START,  data[4] & 0x04);
        input_report_key(dev, BTN_SELECT, data[4] & 0x08);
+       if (xpad->mapping & MAP_SHARE_BUTTON)
+               input_report_key(dev, KEY_RECORD, data[22] &
0x01);

        /* buttons A,B,X,Y */
        input_report_key(dev, BTN_A,    data[4] & 0x10);
@@ -1669,9 +1673,12 @@ static int xpad_init_input(struct
usb_xpad
*xpad)

        /* set up model-specific ones */
        if (xpad->xtype == XTYPE_XBOX360 || xpad->xtype ==
XTYPE_XBOX360W ||
-           xpad->xtype == XTYPE_XBOXONE) {
+               xpad->xtype == XTYPE_XBOXONE) {
                for (i = 0; xpad360_btn[i] >= 0; i++)
                        input_set_capability(input_dev, EV_KEY,
xpad360_btn[i]);
+               if (xpad->mapping & MAP_SHARE_BUTTON) {
+                       input_set_capability(input_dev, EV_KEY,
KEY_RECORD);
Is there not a better keycode to use than "Record"? Should a
"share"
keycode be added?

I couldn't find a share button in the most recent USB HID Usage
Tables:
https://www.usb.org/document-library/hid-usage-tables-121
quoted
+               }
        } else {
                for (i = 0; xpad_btn[i] >= 0; i++)
                        input_set_capability(input_dev, EV_KEY,
xpad_btn[i]);
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