Commit graph

13 commits

Author SHA1 Message Date
Lionel Sambuc
175d3e7eae Changing the message union to anonymous.
This allows us to write things like this:
  message m;
  m.m_notify.interrupts = new_value;

or
  message *mp;
  mp->m_notify.interrupts = new_value;

The shorthands macro have been adapted for the new scheme, and will be
kept as long as we have generic messages being used.

Change-Id: Icfd02b5f126892b1d5d2cebe8c8fb02b180000f7
2014-03-03 20:46:47 +01:00
Ben Gras
8ccb12bb5a use netbsd <sys/signal.h> and sigset_t
. create signals-related struct message type to store sigset_t
	  directly
	. create notify-specific message types, so the generic NOTIFY_ARG
	  doesn't exist anymore
	. various related test expansions, improvements, fixes
	. add a few error-checks to sigismember() calls
	. rename kernel call specific signals fields to SYS_*

Change-Id: I53c18999b5eaf0cfa0cb25f5330bee9e7ad2b478
2014-03-02 12:28:31 +01:00
Ben Gras
7120f34ec1 drop <minix/termios.h>, use clean <sys/termios.h>
. also implement some netbsd-style tty ioctls
	. also implement SIGINFO
	. also import netbsd stty
	. rename keymap minix CMIN (for ctrl+minus on numeric keypad)
	  to CNMIN; to keep unchanged control character default CMIN in
	  new <sys/ttydefaults.h>
	. convert CS[5678] logic in rs232 driver to explicit setting of LC
	  bits

Change-Id: I9b7d2963fe9aec00fb6e7535ef565b3191fc1c1d
2014-03-02 12:28:20 +01:00
David van Moolenbroek
6b3f4dc157 Input infrastructure, INPUT server, PCKBD driver
This commit separates the low-level keyboard driver from TTY, putting
it in a separate driver (PCKBD). The commit also separates management
of raw input devices from TTY, and puts it in a separate server
(INPUT). All keyboard and mouse input from hardware is sent by drivers
to the INPUT server, which either sends it to a process that has
opened a raw input device, or otherwise forwards it to TTY for
standard processing.

Design by Dirk Vogt. Prototype by Uli Kastlunger.

Additional changes made to the prototype:

- the event communication is now based on USB HID codes; all input
  drivers have to use USB codes to describe events;
- all TTY keymaps have been converted to USB format, with the effect
  that a single keymap covers all keys; there is no (static) escaped
  keymap anymore;
- further keymap tweaks now allow remapping of literally all keys;
- input device renumbering and protocol rewrite;
- INPUT server rewrite, with added support for cancel and select;
- PCKBD reimplementation, including PC/AT-to-USB translation;
- support for manipulating keyboard LEDs has been added;
- keyboard and mouse multiplexer devices have been added to INPUT,
  primarily so that an X server need only open two devices;
- a new "libinputdriver" library abstracts away protocol details from
  input drivers, and should be used by all future input drivers;
- both INPUT and PCKBD can be restarted;
- TTY is now scheduled by KERNEL, so that it won't be punished for
  running a lot; without this, simply running "yes" on the console
  kills the system;
- the KIOCBELL IOCTL has been moved to /dev/console;
- support for the SCANCODES termios setting has been removed;
- obsolete keymap compression has been removed;
- the obsolete Olivetti M24 keymap has been removed.

Change-Id: I3a672fb8c4fd566734e4b46d3994b4b7fc96d578
2014-03-01 09:04:55 +01:00
Lionel Sambuc
3af30c2c60 ARM serial driver: Comment termios_baud_rate.
The B0-B115200 defines are flags, and not the actual speed they
represent.

This fixes an incoherency for B0 handling, and documents why it is
required to call the function again after changing the speed flag.

DFL_BAUD is set to one of the flag, so to translate it to an actual
speed, the function calls itself again, which will always be able to
finish without inducing another recursive call.

Change-Id: I04ebfaefee31a88d05f0b726352d1581a966147b
2014-03-01 09:04:52 +01:00
David van Moolenbroek
3d697930dd TTY: use libchardriver; clean up
- writing to a PTY master side blocks if there is not already a
  blocked reader on the slave side, and select now reflects this;
- internally, TTY now uses a test based on "caller != NONE" rather
  than "grant != GRANT_INVALID" to identify whether a call is
  currently ongoing;
- "offset" fields have been removed as they equal the corresponding
  "cum" fields;
- improved variable typing and function naming here and there;
- various other small fixes.

Change-Id: I6b51452888942e864b4e034e8c8490576184a23e
2014-03-01 09:04:52 +01:00
David van Moolenbroek
6331e8f845 Retire the synchronous character driver protocol
- change all sync char drivers into async drivers;
- retire support for the sync protocol in libchardev;
- remove async dev style, as this is now the default;
- remove dev_status from VFS;
- clean up now-unused protocol messages.

Change-Id: I6aacff712292f6b29f2ccd51bc1e7d7003723e87
2014-02-18 11:25:02 +01:00
Kees Jongenburger
43581a14ee arm:replace ifdef's by runtime checks.
Change-Id: Iff966f2214e2d8bb6b72dd0a119085709f2d4a9c
2013-12-03 09:19:25 +01:00
Ben Gras
71ac8a3a8a some arm uart fixes
. always keep reading data from uart so the interrupt is
	  not continually asserted if data is sent but no process
	  reads it
	. increase tx & rx fifo trigger levels -> reduces the number
	  of interrupts necessary
	. bigger rx/tx buffers

Change-Id: I3cf7c73b22ae2fc091b845d516ba4aa53e892cda
2013-06-14 23:58:44 +02:00
Kees Jongenburger
b1e0ada171 arm:tty enable FIFO
Change-Id: Iaaa7c0bcb40c2cce2423c1defc14809ed6c70e9c
2013-06-05 19:19:38 +02:00
Kees Jongenburger
742cf53aa9 arm:adapt tty driver for AM335X.
Change-Id: Ic861d68d0576c2abcdcb265a450c013ea2b28499
2013-05-24 14:03:14 +02:00
Kees Jongenburger
037aeb5a13 arm:rs232 fix.
The kernel API for requesting interrupts and the associated callback
have a somewhat strange behaviour. Requesting an interrupts is done
by calling sys_irqsetpolicy using an interrupt and a given id. This
id can be modified by the sys_irqsetpolicy and must be used for
subsequent calls to sys_irqenable/sys_irqdisable. However upon an
incoming call from the kernel NOTIFY_ARG contains the original value
encoded in a set e.g. if  1 << id == true the interrupt was raised.
2013-04-12 20:52:57 +02:00
Lionel Sambuc
b1c4ba4ab6 ARM updates
Due to the ABI we are using we have to use the earm architecture
moniker for the build system to behave correctly. This involves
then some headers to move around.

There is also a few related Makefile updates as well as minor
source code corrections.
2013-01-17 10:03:58 +01:00
Renamed from drivers/tty/arch/arm/rs232.c (Browse further)