This commit is a preparation commit for suspend/resume. The commit
refactors the code in order to consolidate all Platform resources into one
instance. All users within the driver should access the resources with
with_* functions, which checks whether the device resource is usable. The
callers are not allowed to store any references to the provided resources.
Issue #5101
- monitor system ROM changes
- stop processing of new Jobs before suspend
- destruct platform device before suspend, but keep platform DMA buffers
- re-construct platform device and reinit resources (mmio, irq) on resume
- re-start GPU job scheduling on resume
Fixes#5081
This commit replaces the mapping of DMA buffers and gets rid of the
bounce-buffer handling, which was introduced to prevent data
corruption noticed when utilizing USB storage with Windows 10 guests,
with accessing the buffers directly.
Due to the way Windows 10 at times manages its DMA memory (many small
pieces instead of few larger ones) the unbounded registry becomes a
problem when containing stale entries.
Changing the 'qemu-usb' implementation allows for using 'read_dma'
and 'write_dma' directly.
Fixes#5121.
This patch enhances the audio driver with the option to operate as a
client of the record and play services instead of providing the audio-in
and audio-out services. The record/play mode can be enabled by setting
the 'record_play="yes"' config attribute.
The audio_in.run and audio_out.run scripts support the selection of the
mode via the 'use_record_play_sessions' hook function.
Issue #5097
A read with MSG_PEEK returns -1 and EGAIN/EWOULDBLOCK in case the socket
is connected. Zero is only returned if the socket is disconnected.
isuee #5104
In case the socket is non-blocking, a read with the MSG_PEEK flag set
has to return -1 and EWOULDBLOCK/EAGAIN in case no data is availble and
the socket is connected. Returning zero implies the socket is in
non-connected state. Therefore, check the connection state in this
situation and return accordingly.
issue #5104
With the following changes, the hypervisor binary from bin/ as well as
from depot archives is taken as is and not unnecessarily turned inside
out.
- Remove objcopy -O elf32-i386 as our grub boots 64-bit binaries
very well
- Remove strip as bin/hypervisor is already stripped
- New session interfaces:
- os/include/play_session (for audio playing / mic-input driver)
- os/include/record_session (for audio recording / audio-output driver)
- Mixer at os/src/record_play_mixer providing both play and record services
- Simple waveform player at os/src/app/waveform_player
- Simple audio-signal capturing component at os/src/app/record_rom
- Simple oscilloscpe at gems/src/app/rom_osci (using record_rom)
- Simple test-audio_play for playing raw stereo f32 data
The _gems/run/waveform_player.run_ script illustrates the use of the new
components and interfaces.
Issue #5097
* Move Kernel::Cpu_scheduler to Kernel::Scheduler
(we only have that one scheduler)
* Move Kernel::Cpu_share to Kernel::Scheduler::Context
* Move Kernel::Cpu_priority to Kernel::Scheduler::Priority
* Rename all functions and variables refereing to `claims` to
`prioritzed`, because claims is not that common
* Rename occurrences of `fill(s)` to `slack` to name the time portions
outside of the prioritized quantum
* Get rid of some two-liner sub-functions with only one occurrence
(like `_quota_introduction`, `_quota_revokation`,...)
Ref genodelabs/genode#5115
This private, internal function is used only in one scope,
and therefore not neccessary. But it has nasty side-effects as
it takes the parameter `duration` as reference and changes its
value. Just remove it completely.
Ref genodelabs/genode#5115
The name head is already extensively used in the context of the lists
managed by the scheduler. This terminology duplications does not simplify
reading the code. Instead we keep head for the first item in the list,
but use `current` in the variable name and API of the `Cpu_scheduler`
class to refer to the current scheduled share.
Moreover, the `_head_quota` is now `_current_time_left`, because it does
not denote quota but time left for the current schedule. The boolean
variable `_head_claims` gets removed at all. It duplicated the state of
whether a current share ist set, and whether it has so-called claim time
left.
Ref genodelabs/genode#5115
Give certain scheduler class wide variables and functions clear names:
* quota => super_period_length
* residual => super_period_left
Ref genodelabs/genode#5115
Replace double linked list by normal Genode::List with an additional
pointer to last list member to efficiently handle the scheduler share lists.
Moreover, move it into the private part of the Cpu_scheduler class,
the only scope where it is used anymore.
Ref genodelabs/genode#5115
Minor changes that should not change any semantics:
* Remove `_next_fill()` its short and only used in one context,
in which it is good to know what that code actually does
* Turn boolean values into actual boolean values
* Remove some brackets around one-liner pathes
Ref genodelabs/genode#5115
The `_head_was_removed` variable got introduced in solving #4710, but it
reflects only whether `_head` is a valid pointer or not, thereby it
duplicates state.
Ref genodelabs/genode#5115
Check if controllers port count matches number of ports found in the
port implemented register. In case counts don't match print a diagnostic
message for debugging purposes.
issue #4081
The key element of the improvement is differentiated processing of
events of the following device types.
Mouse: relative motion
Pointer: absolute motion (Qemu usb-tablet and IP-KVM devices)
Touchpad: relative motion via absolute touchpad coordinates
Touchtool: absolute motion (e.g., stylus)
Touchscreen: absolute motion and finger (multi-) touch
Processing is done in two stages for one "input packet". First, all
events of the packet are recorded into the current evdev state with
device-type specific operations. Then, appropriate Genode input events
are generated from the accumulated evdev state in the submission stage
(again by device-type specific functions).
A simple version of tap-to-click was added to the touchpad support.
Fixes#5105
The <transform> filter configurably transforms touch and absolute-motion event
coordinates by a sequence of translation (move), scaling, rotation, and flipping
primitives in sub-nodes.
Issue #5105
Per default, only key presses and releases are logged. The optional
'motion' attribute (boolean) enables logging of motion and touch events.
Issue #5105
This commit enables generic Linux multi-touch support as well as support
for the Wacom Intuos/Graphire tablets as found in the previous version
of the USB HID driver. Events are not properly propagated through
Genode's Event C-API, yet, which will be a follow up.
Issue #5105
