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doc: update components.txt

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This patch adjusts the components.txt to the recent changes of the GUI
stack.

Issue #3812
This commit is contained in:
Norman Feske 2020-08-24 15:59:22 +02:00
parent dd4a3b0263
commit 90b3b72a91
1 changed files with 31 additions and 40 deletions
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71
doc/components.txt
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@ -31,9 +31,9 @@ of them is briefly characterized as follows:
session interfaces. Naturally, a device driver is specific to a
particular hardware platform. The hardware resources are accessed
via core's IO_MEM, IO_PORT, and IRQ services. The functionality of
the driver is made available to other system components by announcing
the driver is made available to other system components via
one of Genode's device-independent session interfaces, which are
'platform_session', 'framebuffer_session', 'input_session', 'block_session',
'platform_session', 'capture_session', 'event_session', 'block_session',
'audio_out_session', 'log_session', 'nic_session', and 'timer_session'
(see 'os/include/' for the interface definitions). Those interfaces are
uniform across hardware platforms and kernel base platforms. Usually,
@ -112,19 +112,14 @@ The UART device drivers implement the UART-session interface.
Framebuffer and input drivers
=============================
Framebuffer and input drivers implement the framebuffer-session interface and
input-session interfaces respectively.
Framebuffer and input drivers are implemented as clients of the
capture-session and event-session interfaces respectively.
:'os/src/drivers/input/dummy':
Pseudo input driver without accessing any hardware. This component is useful
to resolve a dependency from an input session for scenarios where no user
input is required.
:'os/src/drivers/input/spec/ps2/x86':
:'os/src/drivers/ps2/x86':
Driver for the 'i8042' PS/2 controller as found in x86 PCs. It supports both
mouse (including ImPS/2, ExPS/2) and keyboard.
:'os/src/drivers/input/spec/ps2/pl050':
:'os/src/drivers/ps2/pl050':
Driver for the PL050 PS/2 controller as found on ARM platforms such as
VersatilePB. The physical base address used by the driver is obtained at
compile time from a header file called 'pl050_defs.h'. The version of the
@ -132,10 +127,6 @@ input-session interfaces respectively.
is made available to the driver via the SPECS machinery of the Genode build
system.
:'os/src/drivers/input/spec/imx53':
Input driver for Egalaxy touchscreen and Freescale's MPR121
capacitative touch buttons on i.MX53.
:'libports/src/drivers/framebuffer/vesa':
Driver using VESA mode setting on x86 PCs. For more information, please refer
to the README file in the driver directory.
@ -147,13 +138,13 @@ input-session interfaces respectively.
:'os/src/drivers/framebuffer/pl11x':
Driver for the PL110/PL111 LCD display.
:'os/src/drivers/framebuffer/spec/imx53':
:'os/src/drivers/framebuffer/imx53':
Driver for LCD output on i.MX53 SoCs.
:'os/src/drivers/framebuffer/spec/rpi':
:'os/src/drivers/framebuffer/rpi':
Driver for the HDMI output of the Raspberry Pi.
:'os/src/drivers/framebuffer/spec/sdl':
:'os/src/drivers/framebuffer/sdl':
Serves as both framebuffer and input driver on Linux using libSDL. This
driver is only usable on the Linux base platform.
@ -165,9 +156,9 @@ input-session interfaces respectively.
the Linux Intel KMS driver.
:'dde_linux/src/drivers/usb':
USB driver that makes USB HID and USB storage devices available as input
sessions and block session respectively. For examples of using this driver,
refer to the run scripts at 'dde_linux/run/usb_hid' and
USB driver that makes USB HID and USB storage devices available as an input
event stream and a block session respectively. For examples of using this
driver, refer to the run scripts at 'dde_linux/run/usb_hid' and
'dde_linux/run/usb_storage'.
:'dde_linux/src/drivers/usb_hid':
@ -287,13 +278,14 @@ Resource multiplexers
By convention, resource multiplexers are located at the 'src/server'
subdirectory of a source repository.
:Framebuffer and input: The framebuffer and input session interfaces can be
multiplexed using the Nitpicker GUI server, which allows multiple clients to
create and manage rectangular areas on screen. Nitpicker uses one input
session and one framebuffer session as back end and, in turn, provides
so-called nitpicker sessions to one or multiple clients. Each nitpicker
session contains a virtual framebuffer and a virtual input session. Nitpicker
(including a README file) is located at 'os/src/server/nitpicker'.
:Framebuffer and input: Framebuffer and input devices can be multiplexed using
the Nitpicker GUI server, which allows multiple clients to create and manage
rectangular areas on screen. Nitpicker serves as broker between input
devices, output devices, and graphical applications. It provides an event
service for input drivers, a capture service for output drivers, and a GUI
service for the applications. Each GUI session contains a virtual
framebuffer and a virtual input interface. Nitpicker (including a README
file) is located at 'os/src/server/nitpicker'.
:Audio output: The audio mixer located at 'os/src/server/mixer' enables
multiple clients to use the audio-out interface. The mixing is done by simply
@ -337,13 +329,13 @@ Separate components
===================
:'os/src/server/gui_fb':
Translates a nitpicker session to a pair of framebuffer and input sessions.
Translates a GUI session to a pair of framebuffer and input sessions.
Each 'gui_fb' instance is visible as a rectangular area on screen presenting
a virtual frame buffer. The area is statically positioned. For more
information, please refer to 'os/src/server/gui_fb/README'.
:'gems/src/server/wm':
Window manager that implements the nitpicker session interface but manages
Window manager that implements the GUI session interface but manages
each client view as a separate window. The window decorations are provided
by a so-called decorator (e.g., 'gems/src/app/decorator'). The behaviour
is defined by a so-called window layouter such as the floating window
@ -383,8 +375,7 @@ Separate components
Adapter that writes LOG messages to files on a file system.
:'demo/src/server/nitlog':
Provides a LOG session, printing log output on screen via a nitpicker
session.
Provides a LOG session, printing log output on screen via a GUI session.
:'os/src/app/rom_logger':
The rom_logger component requests a ROM session and writes the
@ -450,16 +441,16 @@ Separate components
is then propagated to the clients of the ROM service according to a
configurable information-flow policy.
:'os/src/server/input_filter':
:'os/src/server/event_filter':
A component that transforms and merges input events from multiple sources
into a single stream.
into a single event stream.
:'libports/src/server/acpi_input':
:'libports/src/app/acpi_event':
A component that transforms ACPI events into Genode input events.
:'gems/src/server/gui_fader':
A wrapper for nitpicker's session interface that applies alpha-blending to
the of views a nitpicker client.
A wrapper for nitpicker's GUI session interface that applies alpha-blending
to the of views a GUI client.
VFS plugins
@ -526,7 +517,7 @@ Libraries
run on a text terminal.
:'libports/lib/mk/qt5_*':
Qt5 framework, using nitpicker session and NIC session as back end.
Qt5 framework, using GUI session and NIC session as back end.
:'libports/lib/mk/vfs_jitterentropy.mk':
A VFS plugin that makes a jitter-based random-number generator available
@ -555,8 +546,8 @@ subdirectory of a repository. Most applications come with README files
located in their respective directory.
:'gems/src/app/backdrop':
Nitpicker client application that sets a composition of PNG images as
desktop background.
GUI client application that sets a composition of PNG images as desktop
background.
:'demo/src/app/launchpad':
Graphical application for interactively starting and killing subsystems.