clang-format: copy latest and re-format

clang-format-16 has some backwards incompatible changes that require
additional settings for best compatibility and re-running the formatter.
Copy the latest

clang-format: copy latest and re-format

clang-format-16 has some backwards incompatible changes that require
additional settings for best compatibility and re-running the formatter.
Copy the latest .clang-format from the docs repository and reformat the
repository.

Change-Id: I520ea7fb067992065539299a2e5dfa4ff28788ab
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>

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Incorrect port id for gadget driver

The portId should be 1e6a0000.usb-vhub.X instead of gadget.Y.

Tested with
1. Connect evb-ast2500 evb to a mother board.
2. Dump the input devices event by evtest

Incorrect port id for gadget driver

The portId should be 1e6a0000.usb-vhub.X instead of gadget.Y.

Tested with
1. Connect evb-ast2500 evb to a mother board.
2. Dump the input devices event by evtest.
3. Establish KVM session on WebUI.
4. Move around the mouse on WebUI.
5. Press keyboard on WebUI.

Mouse:
```
$ sudo evtest /dev/input/event16
Input driver version is 1.0.1
Input device ID: bus 0x3 vendor 0x1d6b product 0x104 version 0x101
Input device name: "OpenBMC virtual_input"
Supported events:
Event type 0 (EV_SYN)
Event type 1 (EV_KEY)
Event code 272 (BTN_LEFT)
Event code 273 (BTN_RIGHT)
Event code 274 (BTN_MIDDLE)
Event type 2 (EV_REL)
Event code 8 (REL_WHEEL)
Event code 11 (REL_WHEEL_HI_RES)
Event type 3 (EV_ABS)
Event code 0 (ABS_X)
Value 16383
Min 0
Max 32767
Event code 1 (ABS_Y)
Value 16383
Min 0
Max 32767
Event type 4 (EV_MSC)
Event code 4 (MSC_SCAN)
Properties:
Testing ... (interrupt to exit)
Event: time 1678869292.665398, type 3 (EV_ABS), code 0 (ABS_X), value
30720
Event: time 1678869292.665398, type 3 (EV_ABS), code 1 (ABS_Y), value 0
Event: time 1678869292.665398, -------------- SYN_REPORT ------------
Event: time 1678869292.683394, type 3 (EV_ABS), code 0 (ABS_X), value
30566
Event: time 1678869292.683394, type 3 (EV_ABS), code 1 (ABS_Y), value
546
Event: time 1678869292.683394, -------------- SYN_REPORT ------------
Event: time 1678869292.699394, type 3 (EV_ABS), code 0 (ABS_X), value
30412
Event: time 1678869292.699394, type 3 (EV_ABS), code 1 (ABS_Y), value
819
Event: time 1678869292.699394, -------------- SYN_REPORT ------------
Event: time 1678869292.716394, type 3 (EV_ABS), code 0 (ABS_X), value
30259
Event: time 1678869292.716394, type 3 (EV_ABS), code 1 (ABS_Y), value
1228
Event: time 1678869292.716394, -------------- SYN_REPORT ------------
Event: time 1678869292.734401, type 3 (EV_ABS), code 0 (ABS_X), value
16383
Event: time 1678869292.734401, type 3 (EV_ABS), code 1 (ABS_Y), value
16383
```

Keyboard:
```
$ sudo evtest /dev/input/event15
Input driver version is 1.0.1
Input device ID: bus 0x3 vendor 0x1d6b product 0x104 version 0x101
Input device name: "OpenBMC virtual_input"
Supported events:
Event type 0 (EV_SYN)
Event type 1 (EV_KEY)
Event code 1 (KEY_ESC)
Event code 2 (KEY_1)
Event code 3 (KEY_2)
Event code 4 (KEY_3)
Event code 5 (KEY_4)
Event code 6 (KEY_5)
Event code 7 (KEY_6)
Event code 8 (KEY_7)
Event code 9 (KEY_8)
Event code 10 (KEY_9)
... skip
Event: time 1678869404.403709, -------------- SYN_REPORT ------------
Event: time 1678869404.566714, type 4 (EV_MSC), code 4 (MSC_SCAN), value
70007
Event: time 1678869404.566714, type 1 (EV_KEY), code 32 (KEY_D), value 1
Event: time 1678869404.566714, -------------- SYN_REPORT ------------
Event: time 1678869404.612705, type 4 (EV_MSC), code 4 (MSC_SCAN), value
70007
Event: time 1678869404.612705, type 1 (EV_KEY), code 32 (KEY_D), value 0
Event: time 1678869404.612705, -------------- SYN_REPORT ------------
Event: time 1678869405.525694, type 4 (EV_MSC), code 4 (MSC_SCAN), value
700e1
Event: time 1678869405.525694, type 1 (EV_KEY), code 42 (KEY_LEFTSHIFT),
value 1
Event: time 1678869405.525694, -------------- SYN_REPORT ------------
Event: time 1678869405.535692, type 4 (EV_MSC), code 4 (MSC_SCAN), value
700e1
Event: time 1678869405.535692, type 1 (EV_KEY), code 42 (KEY_LEFTSHIFT),
value 0
```

Fixes: 20de859 ("Potentially connect udc device incorrectly")
Change-Id: Ia01d767c2f07145ab0abe660ff63f42d5e8974a2
Signed-off-by: Troy Lee <troy_lee@aspeedtech.com>

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whitespace removal suggested by format-code.sh script run on the repository.

Change-Id: Ib54bd222ba3549bcf310a211992c2e35681f8b81
Signed-off-by: charles kearney <charles.kearney@hpe.com>

Potentially connect udc device incorrectly

The fs::directory_iterator doesn't specify the order of enumeration of
folders. The if-condition here doesn't prevent the folder other than
gadget port, e

Potentially connect udc device incorrectly

The fs::directory_iterator doesn't specify the order of enumeration of
folders. The if-condition here doesn't prevent the folder other than
gadget port, e.g. 1e6a0000.usb-vhub:pX, be taken into account, e.g.
power folder. In this case, an exception will be generate internally
in connect(). This patch add another check to make sure the folder is
a gadget port.

Without this patch, occasionally obmc-ikvm shows below message and
failed to enumerate USB-HID gadget devices (mouse and keyboard).
```
[ 101.840770] Error: Driver 'configfs-gadget' is already registered,
aborting...
[ 101.848547] UDC core: obmc_hid: driver registration failed: -16

```

Tested with evb-ast2500 to connect VM, then launch KVM and disconnect
for several times.

Fixes: c11257d864ff ("Connect HID gadget device dynamically")
Signed-off-by: Troy Lee <troy_lee@aspeedtech.com>
Change-Id: I0cad041d69d580a544e60c79e1c991482ca79819

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Add support for specifying UDC that HID gadget will connect to

Currently, HID gadget always connects to the USB virtual hub port
under /sys/bus/platform/devices/1e6a0000.usb-vhub, which only works
o

Add support for specifying UDC that HID gadget will connect to

Currently, HID gadget always connects to the USB virtual hub port
under /sys/bus/platform/devices/1e6a0000.usb-vhub, which only works
on ASPEED platform.

This commit adds support for specifying UDC that HID gadget will
connect to, it could be useful for non-ASPEED platform. Although there
are still some other ASPEED-specific behaviors need to be addressed,
but this commit is the first step for non-ASPEED platform.

Tested:
Specify UDC by '-u' parameter and HID gadget will connect to it. Otherwise,
HID gadget will connect to the USB virtual hub port.

Signed-off-by: Marvin Lin <milkfafa@gmail.com>
Change-Id: Ie24ed9d32cb4f7483e8d4c8b51cc5e1bb5fa94de

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Add clang-format

Refer:https://github.com/openbmc/docs/blob/ac5d544553934f8083c61c5986a1420261bc8a4c/style/cpp/.clang-format

Signed-off-by: George Liu <liuxiwei@inspur.com>
Change-Id: I931503febf4e

Add clang-format

Refer:https://github.com/openbmc/docs/blob/ac5d544553934f8083c61c5986a1420261bc8a4c/style/cpp/.clang-format

Signed-off-by: George Liu <liuxiwei@inspur.com>
Change-Id: I931503febf4e17af5c328a6496e499992bc4e381

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Add Mouse Wheel Scroll Events

This commit add support for mouse wheel scroll events in KVM.
It supports for mouse scroll up/down buttons, by which user can use
mouse wheel functionality.

Testing:
T

Add Mouse Wheel Scroll Events

This commit add support for mouse wheel scroll events in KVM.
It supports for mouse scroll up/down buttons, by which user can use
mouse wheel functionality.

Testing:
Tested mouse wheel functionality.
Verified mouse wheel scroll up/down functions.

Signed-off-by: Tejas Patil <tejaspp@ami.com>
Change-Id: I7f53f0f203a81b55f2377982571e8f415ed99df2

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Fix error reporting in Input::writeKeyboard()

write(2) only sets errno on failure; a successful call leaves it
unchanged. We had been being using errno to determine whether or not
t

Fix error reporting in Input::writeKeyboard()

write(2) only sets errno on failure; a successful call leaves it
unchanged. We had been being using errno to determine whether or not
the write succeeded, but weren't zeroing it before the call and hence
could end up spuriously reporting failure from writeKeyboard() even when
the write actually succeeded.

That false report can in turn cause sendWakeupPacket() to not send the
key release after its XK_Shift_L key press, leading to the host thinking
the shift key is being held down, which among other minor bits of
confusion can cause a boot hang (Ubuntu's GRUB, for example, is patched
to interpret a held shift key as a signal from the user to interrupt its
default boot sequence and switch to an interactive menu).

We now instead just return success immediately after a complete write
and false otherwise (if we exhaust our retry attempts or hit a
non-EAGAIN failure).

Tested: verified with strace that obmc-ikvm sends both the press and the
release of the shift key in sendWakeupPacket(); Ubuntu host booted
cleanly instead of stopping at the GRUB menu.

Signed-off-by: Zev Weiss <zweiss@equinix.com>
Change-Id: Ic1229b3979690040879c7e4471ebc987878289e6

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Refine HID report writing logic

Blocking write on the keyboard HID device causes screen freezing
during turning off the host power. To fix this issue, this commit
refines the logic u

Refine HID report writing logic

Blocking write on the keyboard HID device causes screen freezing
during turning off the host power. To fix this issue, this commit
refines the logic using non-blocking write. As a side effect,
non-blocking write introduces event dropping when kernel HID driver
returns -EAGAIN when the driver is in busy state so this commit also
adds retry logic to cover the case.

Tested: Didn't see the screen freezing issue.

Change-Id: Ibd95f567c49f448cd053948c14c006de17c52420
Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com>

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Connect HID gadget device dynamically

Connecting HID gadget device statically from the beginning of this
service causes an issue on WHLK test. To prevent the issue, this
commit chang

Connect HID gadget device dynamically

Connecting HID gadget device statically from the beginning of this
service causes an issue on WHLK test. To prevent the issue, this
commit changes the HID gadget device handling as dynamic so that
the HID gadget device can be connected when this service has at
least one KVM client.

Tested: /dev/hidg0 and /dev/hidg1 created only when at least one
KVM client is connected.

Change-Id: I5f6596b9e4e297fb6b507000499fc041460659f7
Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@intel.com>

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Fix keyboard and mouse input events dropping issue

Restarting of HID input devices causes input events dropping issue
which is critical for BMC KVM uses. For an example, user can't enter

Fix keyboard and mouse input events dropping issue

Restarting of HID input devices causes input events dropping issue
which is critical for BMC KVM uses. For an example, user can't enter
to BIOS by doing keep pressing 'F2' or 'Del' key because of this issue.

To fix the issue, this commit removes the input device restarting
logic and refines error log journaling logic using errno checking.

Tested:
1. Open BMCweb -> Server control -> KVM.
2. Make a host reset and keep pressing 'F2' key.
3. Was able to enter to BIOS using the key press.

Change-Id: Iec1bfad1d9e5825858844cab658bbfa3e6bc24f6
Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com>

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Prevent excessive journal logging by wakeup signal

When the application is waiting for timings, it restarts the video to
try and get a signal. Part of this process sends a wake-up signal

Prevent excessive journal logging by wakeup signal

When the application is waiting for timings, it restarts the video to
try and get a signal. Part of this process sends a wake-up signal on
the virtual keyboard and pointer in case host VGA has slept. But if the
host is shut down, this causes repeated errors in the journal as the
HID gadgets return errors.

Fix this by consolidating the keyboard/pointer write functions and
therefore closing the HID gadget file handles when the host is shut
down, preventing further wake-up attempts until host returns.

Change-Id: Id5fe484c976eccefa6a72393d4d6b2b301d28a1a
Signed-off-by: Eddie James <eajames@linux.ibm.com>

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Add keypad input support

This commit makes keypad inputs available.

Change-Id: I95a9268cd930c85846947b6bd49c97087121ca8a
Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@linux.intel.co

Add keypad input support

This commit makes keypad inputs available.

Change-Id: I95a9268cd930c85846947b6bd49c97087121ca8a
Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com>

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eliminate excessive journal errors

When the USB gadget is shut down, the application needs to avoid writes
to it in order to avoid lots of errors in the kernel log. Close the file
ha

eliminate excessive journal errors

When the USB gadget is shut down, the application needs to avoid writes
to it in order to avoid lots of errors in the kernel log. Close the file
handle and re-open it when timings are detected again. Also, prevent
logging the failed timings query more than once.

Change-Id: Ic126828fe26ef44ebb0a5cb65cc47b23bb84f7f3
Signed-off-by: Eddie James <eajames@linux.ibm.com>

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Switch pointer gadget to non-blocking

Writes to the pointer gadget can hang if the host has no cursor. Using
non-blocking mode prevents this hanging. Also prevent repeated error
logg

Switch pointer gadget to non-blocking

Writes to the pointer gadget can hang if the host has no cursor. Using
non-blocking mode prevents this hanging. Also prevent repeated error
logging due to pointer write failures in this case.

Change-Id: I9c423a4a0af4b37a69ae20650b86a6266e5b4b41
Signed-off-by: Eddie James <eajames@linux.ibm.com>

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Fix mouse button mapping issue

Mapping of a mouse button event delivered from libvncserver is
different from HID gadget driver so this patch swaps bit position 1
and 2 to map center

Fix mouse button mapping issue

Mapping of a mouse button event delivered from libvncserver is
different from HID gadget driver so this patch swaps bit position 1
and 2 to map center and right button correctly.

Tested: KVM mouse buttons worked correctly.

Change-Id: Ia1771df6763b906b5cff3041df9095e0c72c892b
Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com>

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Fix pointer position mismatch issue

In case of big size resolution of host video, mouse pointer
indicates slightly upper left than client GUI pointer. It's caused
by rounding off val

Fix pointer position mismatch issue

In case of big size resolution of host video, mouse pointer
indicates slightly upper left than client GUI pointer. It's caused
by rounding off value below the decimal point on the coordinate
unit. For an example, in 1600x1200 screen size, the x coordinate
unit is 32768 / 1600 = 20.48 but we use 20 after rounding off the
0.48.

To prevent this issue, this commit changes logic of the calculation.
It uses integer operations instead of using floating point
operations for better performance.

Change-Id: Ie1fbb6b41ace997c50982d9542b0b03280b2220f
Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com>

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Send a keyboard event too for a wake-up event

This commit adds a keyboard event sending for waking up the host.
So both keyboard and mouse events will be triggered for a case
when th

Send a keyboard event too for a wake-up event

This commit adds a keyboard event sending for waking up the host.
So both keyboard and mouse events will be triggered for a case
when the host is in mode that doesn't support mouse.

Change-Id: I90d9a1e53706cd860340dfd8be688128fa95c4fc
Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com>

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Fix HID issues

Mixed type HID report descriptor in the current trunk doesn't work
well so this patch fixes the HID creation logic to make it use
composite configuration which has sep

Fix HID issues

Mixed type HID report descriptor in the current trunk doesn't work
well so this patch fixes the HID creation logic to make it use
composite configuration which has separated keyboard and mouse
HID descriptor using a single USB port.

ikvm service also should be changed using below setting after
applying this patch:
ExecStart=/usr/bin/env obmc-ikvm -v /dev/video0 -k /dev/hidg0 -p /dev/hidg1

Change-Id: I9b2975f4fdade2c6030def829951d02b24bea562
Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com>

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Add input handling class

The Input class depends on the RFB server and V4L2 video classes, so
add outlines for those as well.

Change-Id: I2826f3da78dee10826e378dfc2c773b891da1f0

Add input handling class

The Input class depends on the RFB server and V4L2 video classes, so
add outlines for those as well.

Change-Id: I2826f3da78dee10826e378dfc2c773b891da1f03
Signed-off-by: Eddie James <eajames@linux.ibm.com>

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