Commit Graph

396 Commits

Author SHA1 Message Date
Xiang Xiao
4c167b0729 Correct the code alignment
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2022-02-01 21:22:21 -03:00
Xiang Xiao
f987668068 serial: Consolidate the general termios in the common place
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2022-02-01 21:22:21 -03:00
Huang Qi
2e35b6d611 serial/uart_16550: Allow uintptr_t as addr width
Signed-off-by: Huang Qi <huangqi3@xiaomi.com>
2022-01-14 19:40:30 +08:00
Petro Karashchenko
a743fed63d file_operations: get back C89 compatible initializer
Signed-off-by: Petro Karashchenko <petro.karashchenko@gmail.com>
2022-01-11 02:14:00 +08:00
ligd
5a0ab205ca serial: merge serial check signo to one place
Signed-off-by: ligd <liguiding1@xiaomi.com>
2022-01-10 17:07:32 +01:00
Jiuzhu Dong
dce8c96281 uart_rpmsg: fix data loss
Signed-off-by: Jiuzhu Dong <dongjiuzhu1@xiaomi.com>
2022-01-04 20:57:40 +08:00
ligd
75aec04330 serial: add CONFIG_TTY_LAUNCH support
this allow user start new program from tty

Signed-off-by: ligd <liguiding1@xiaomi.com>
2022-01-01 20:38:26 +08:00
Xiang Xiao
4262b09cbf libc: Implement terminal api regardless of CONFIG_SERIAL_TERMIOS setting
since many functions aren't related to termios directly

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2021-12-29 08:11:08 -03:00
Xiang Xiao
86684105f9 serial: Move tcdrain implementation from drivers/serial to libc
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2021-12-29 08:11:08 -03:00
Xiang Xiao
a010cb1af1 serial: Make SIGINT and SIGTSTP work even without CONFIG_SERIAL_TERMIOS
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2021-12-29 08:11:08 -03:00
ligd
5b369c5cec libs/lbc: remove CHAR_BIT = 16 support
For CEVA platform CHAR_BIT is 16, and will do lots of extra work
when use IPC.
We will not support this platform anymore, so remove all the b2c operations.

Signed-off-by: ligd <liguiding1@xiaomi.com>
2021-12-13 11:08:28 -06:00
Huang Qi
3d4be7089c drivers/serial/uart_16550: Fix warning for format
Signed-off-by: Huang Qi <huangqi3@xiaomi.com>
2021-12-07 23:28:33 -06:00
Huang Qi
a24005b70b drivers/serial: Fix offset calculation in 16550
Signed-off-by: Huang Qi <no1wudi@qq.com>
2021-12-05 07:02:40 -06:00
jordi
f3af6edf93 Kconfig: add quotes in source to clean warnings from setconfig
To avoid the setconfig warning "style: quotes recommended around xxx in
source xxx"
2021-07-23 02:32:19 -07:00
Jiuzhu Dong
3834e7e2c9 serial: use Ctrl+? composite key to force panic"
N/A

Change-Id: I249312538107266d343e326b9c966012678e6a00
Signed-off-by: Jiuzhu Dong <dongjiuzhu1@xiaomi.com>
2021-07-19 04:24:37 -07:00
ligd
136662f5f9 serial: add ctrl+@ to force crash system for debugging
Change-Id: Iee65ac6c94ff298cfadf4429936b3744c16b8698
Signed-off-by: ligd <liguiding1@xiaomi.com>
2021-07-13 14:45:09 -03:00
ligd
b86bcff2eb serial: add ioctl TIOCNOTTY
Change-Id: I14ab1304d6330578423e0775f42faa8e19886fef
Signed-off-by: ligd <liguiding1@xiaomi.com>
2021-07-02 07:20:42 -05:00
Xiang Xiao
7ff6aac43a serial/pty: Initialize the terminal setting as a console
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Change-Id: Ie80a22b7a074d048435524d86f0ca7fc7a20e756
2021-06-12 09:52:05 +09:00
Xiang Xiao
4e038c1724 serial/pty: Don't return -NOSYS if pollfd::events equals 0
since the caller is free not to monitor any event

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Change-Id: Ib957be1b1b5a686faea0196bc9069e0908a492eb
2021-06-11 08:22:41 -07:00
Xiang Xiao
f7c0d46ed8 serial: Remove the unnecessary err_out label 2021-06-07 07:55:14 +09:00
Masayuki Ishikawa
3ccef09b4e drivers: serial: Remove an unnecessary critical section (cs) for SMP
Summary:
- I thought this cs is needed to avoid data corruption
- For example, while executing uart_xmitchar() in the interrupt
  handler on CPU0, an application running on CPU1 can call
  uart_putxmitchar() via write()->uart_write().
- In this case, taking xmit.sem in uart_write() will wait for CPU0
  to finish uart_xmitchar() because CPU0 has already taken a cs
  in uart_xmitchar() then nxsem_wait() on CPU0 takes a new cs
  inside (and release the cs when returning but it's OK)
- Then uart_write() on CPU1 disables UART TX, so uart_xmitchar()
  on CPU0 will not be called while executing uart_write() on CPU1.
- So this critical section in uart_putxmitchar() can be removed.

Impact:
- None

Testing:
- Tested with spresense:wifi_smp, esp32-devkitc:smp

Reported-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Signed-off-by: Masayuki Ishikawa <Masayuki.Ishikawa@jp.sony.com>
2021-06-05 22:33:09 -05:00
Xiang Xiao
2e54df0f35 Don't include assert.h from public header file
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2021-06-03 08:36:03 -07:00
Xiang Xiao
81e63e3a63 serial: Remove the unnecessary critical section in uart_pollnotify
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2021-06-02 15:46:53 -07:00
chao.an
99bfd355c7 serial/uart/h4: add bt h4 uart serial driver
Signed-off-by: chao.an <anchao@xiaomi.com>
2021-05-31 09:50:54 -03:00
Alin Jerpelea
13e4f9b6b2 drivers: update licenses to Apache
Gregory Nutt is the copyright holder for those files and he has submitted the
SGA as a result we can migrate the licenses to Apache.

Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
2021-05-31 02:58:08 -05:00
Masayuki Ishikawa
59ab8151cc drivers: serial: Remove unnecessary DEBUGASSERT in serial.c
Summary:
- This commit removes unnecessary DEBUGASSERT in serial.c

Impact:
- None

Testing:
- Tested with sabre-6quad (QEMU) and sim

Signed-off-by: Masayuki Ishikawa <Masayuki.Ishikawa@jp.sony.com>
2021-05-26 23:20:29 -03:00
Xiang Xiao
276fa2ff1c drivers/serial: Change the default value of SERIAL_NPOLLWAITERS to 4
since the console is normally opened three time as stdin, stdout and
stderr and remove the dependence on STANDARD_SERIAL because other type
of serial drivers also support the poll through the same codebase.

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Change-Id: Ie68322c4647cc838b295491329969869d6ba310b
2021-05-11 16:45:22 +01:00
Julian Oes
644a0cd525 drivers/serial: fix Rx interrupt enable for cdcacm
This is addressing an issue where Rx interrupts were not restored for
cdcacm after the buffer had been filled (in a burst).
The Rx interrupts were only restored after the watchdog timeout of 200ms
fired.

This happened because CONFIG_SERIAL_RXDMA was set, however, for the
cdcacm driver this does not actually matter as it is relying on
uart_enablerxint to be called via the ops table.

This patch makes sure that uart_enablerxint and uart_disablerxint are
always called, independent of CONFIG_SERIAL_RXDMA, relying on the ops
table to be correct for the case where it should be only a no-op.
2021-05-06 06:49:07 -07:00
Alin Jerpelea
c798076084 drivers: Author Sebastien Lorquet: update licenses to Apache
Sebastien Lorquet has submitted the ICL and we can migrate the licenses
 to Apache.

Gregory Nutt has submitted the SGA and we can migrate the licenses
 to Apache.

Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
2021-03-20 19:22:58 -07:00
ligd
24cc83e46f serial/serial_dma.c: fix warnnings
serial/serial_dma.c: In function ‘uart_recvchars_done’:
serial/serial_dma.c:407:7: warning: implicit declaration of function ‘nxsig_kill’ [-Wimplicit-function-declaration]
  407 |       nxsig_kill(dev->pid, signo);
      |       ^~~~~~~~~~

Change-Id: I9e1c0341ecce3033889d11fff9ec2b9e3dfe303b
2021-03-07 01:45:51 -08:00
ligd
64708ddc7a drivers/serial/Kconfig: fix configure warnning
user should select the default action by self:
warning: (TTY_SIGINT) selects SIG_SIGKILL_ACTION which has unmet direct dependencies (SIG_DEFAULT)

Change-Id: Ied9899d18156742ce4998b40d53a481262dcd84a
Signed-off-by: ligd <liguiding1@xiaomi.com>
2021-03-07 01:45:51 -08:00
Alin Jerpelea
ccff570e6f drivers: nxstyle fixes
nxstyle fixes to pass the CI.

Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
2021-03-04 18:32:27 -08:00
Alin Jerpelea
e5b6305f4a drivers: Author Gregory Nutt: update licenses to Apache
Gregory Nutt has submitted the SGA and we can migrate the licenses
 to Apache.

Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
2021-03-04 18:32:27 -08:00
Xiang Xiao
9473434587 Ensure the kernel component don't call userspace API
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2021-03-01 09:23:09 +09:00
Xiang Xiao
0536953ded Kernel module should prefer functions with nx/kmm prefix
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2021-01-13 08:57:58 +01:00
Xiang Xiao
fe96250c40 fs: Make nx_vxxx and file_vxxx as internal functions
these functions are the implementation detail and then
don't need expose to external

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Change-Id: Ief832391d5b42d1f1645907eb465631650490234
2021-01-12 17:08:22 +01:00
Xiang Xiao
1aa69f4c73 fs: Remove the special hack for pty in nx_vopen
let's replace the content of file in place instead

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Change-Id: I538910d55815c7aec656c05dba4eab2fa1d6d964
2021-01-08 11:04:24 +08:00
Xiang Xiao
a24ff44ae6 fs: Add file_pipe function
so pty don't need call nx_pipe and then file_detach

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Change-Id: Ibb8d108abd76bafe53897e5fca35babcf3e1bae9
2021-01-08 11:03:19 +08:00
Xiang Xiao
4d4cba41f6 Move the declaration of nx_mkfifo/nx_pipe to nuttx/fs/fs.h
the new location is better than nuttx/drivers/drivers.h
since they are part of the file system api.

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2021-01-08 11:03:19 +08:00
ligd
6ad1181923 serial: should include <signal.h> explicitly
Change-Id: I20260ad3bcceb30207c9c12041dd95de41e13777
Signed-off-by: ligd <liguiding1@xiaomi.com>
2020-12-29 04:21:42 -08:00
zhongan
d5d6690ebc drivers/serial/uart_16550.c: fix complie warning and writing style.
change argue type from 'uint32_t' to 'unsigned int' in fucntion
'u16550_receive'.

Signed-off-by: zhongan <zhongan@xiaomi.com>
2020-12-24 10:51:46 -06:00
Tido Klaassen
93ff68e75a serial: Prevent RX stall
Re-check RX queue status after uart_enablerxint() and before blocking
the reading task on the receive semaphore. cdcacm (and maybe other UART
drivers) can push buffered data into the receive queue during
uart_enablerxint(), leading to a blocked task while data is already
available.

Signed-off-by: Tido Klaassen <tido@4gh.eu>
2020-11-20 04:16:35 -08:00
Juha Niskanen
ca7a7ccbeb Fix some typos in comments
Signed-off-by: Juha Niskanen <juha.niskanen@haltian.com>
2020-11-08 18:58:20 +01:00
Yoshinori Sugino
c13f869432 Modify SIGSTP to SIGTSTP
Follow the POSIX description.
SIGTSTP should be sent when the Ctrl-Z characters is encountered, not SIGSTP.

Testing:
Built with hifive1-revb:nsh (CONFIG_SERIAL_TERMIOS=y, CONFIG_SIG_DEFAULT=y and CONFIG_TTY_SIGTSTP=y)
2020-10-29 01:12:43 -07:00
Yoshinori Sugino
13c0debec7 drivers/serial/Kconfig: Fix typos 2020-10-28 23:47:39 -07:00
dongjiuzhu
d452a05910 pollnotify: we should send poll events before semaphore incrementes.
There is a good case on sim platform:
When we input some cmd and click enter key to start application in terminal,
this context will change to application from IDLE loop. Althrough entey key '\r'
has been received to recv buffer and complete post semaphore of reader, but
pollnotify may not be called because context change. So when application run
poll function, because no events happend and poll enter wait, context will
again change to IDLE loop, this pollnotify of IDLE loop will run to send poll
events, poll function of applicaton will wake up. It's wrong!

Change-Id: I812a889f2e90781a9c3cb4b0251cccc4d32bebd1
Signed-off-by: dongjiuzhu <dongjiuzhu1@xiaomi.com>
2020-10-26 08:27:09 -03:00
Alexander Vasiljev
d523757d4a serial: break from read after closing 2020-10-21 09:20:04 -07:00
Xiang Xiao
650e18baa1 serial: Shouldn't mangle pid when ISIG is changed
Let's check ISIG flag directly instead

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Change-Id: I060f70eefc79b1c34aa11ed4071179d2ae5fa5ca
2020-09-25 06:48:26 -07:00
chao.an
614ac5b0f2 libs/libc/unistd: Implement pipe2(2) syscall
See the reference here:
https://www.man7.org/linux/man-pages/man2/pipe2.2.html

Change-Id: Ife19b9bdbde73c7421be381a094da67017819e63
Signed-off-by: chao.an <anchao@xiaomi.com>
2020-09-18 20:01:26 -07:00
Xiang Xiao
b5f429c88b Fix nxstyle warning
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2020-08-22 17:37:21 -06:00
Xiang Xiao
ae356001cf Change all files come from Xiaomi/Pinecone to Apache License 2.0
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2020-08-22 17:37:21 -06:00
Gregory Nutt
43183e5843 drivers/serial/pty.c: Correct returned number of bytes.
Reported by 권석근 <kwonsksj@gmail.com>:

I found a bug at "pty.c" during ssh server implementation.

When I turn on CONFIG_SERIAL_TERMIOS and OPOST|ONLCR on pty device
for nsh console's stdin/stdout (ssh shell service), I've got system crash.

Bugs at line 687 of pty.c, pty_write()
ntotal++;

when converting '\n' to '\r\n', pty_write() will return more than requested
(+1, for example) length. and this will break caller lib_fflush(), line 150
of lib_libfflush.c.
When she get (libfflush()) bytes_nwritten which is greater than nbuffer,
nbuffer goes to negative at line 150 and eventually destroys
*stream->fs_bufpos at line 163 of lib_libflush.c

Removing ntotal++;  line 687 of pty.c will fix this bug.

BTW, nsh using ptm/pty as a ssh shell service works great with libssh +
mbedtls.
2020-06-01 16:39:49 +01:00
Gregory Nutt
57bc329aac Run nxstyle all .c and .h files modified by PR. 2020-05-17 14:01:00 -03:00
Gregory Nutt
a569006fd8 sched/: Make more naming consistent
Rename various functions per the quidelines of https://cwiki.apache.org/confluence/display/NUTTX/Naming+of+OS+Internal+Functions

    nxsem_setprotocol -> nxsem_set_protocol
    nxsem_getprotocol -> nxsem_get_protocol
    nxsem_getvalue -> nxsem_get_value
2020-05-17 14:01:00 -03:00
Xiang Xiao
517974787f Rename clock_systime[r|spec] to clock_systime_[ticks|timespec]
follow up the new naming convention:
https://cwiki.apache.org/confluence/display/NUTTX/Naming+of+OS+Internal+Functions
2020-05-10 14:35:50 -06:00
Xiang Xiao
b7d922960f Fix nxstyle issue
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2020-05-08 07:20:49 -06:00
Xiang Xiao
32b79b22ec Rename pipe2/mkfifo2 to nx_pipe/nx_mkfifo
and don't modify errno anymore

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2020-05-04 07:20:02 -06:00
Gregory Nutt
9ff1795760 Check return from nxsem_wait_initialize()
Resolution of Issue 619 will require multiple steps, this part of the first step in that resolution:  Every call to nxsem_wait_uninterruptible() must handle the return value from nxsem_wait_uninterruptible properly.  This commit is only for rwbuffer.c and those files under drivers/serial, drivers/timers, and drivers/usbdev.

This commit completes that step for all of the files under drivers/.  Still remaining:  All of the files under arch/.
2020-04-01 14:20:04 -03:00
Gregory Nutt
98b2949e3b z20x: Improve usability of bootloader
boards/z80/ez80/z20x/configs/w25boot/defconfig:  Increase size of serial Tx buffer.

boards/z80/ez80/z20x/src/w25_main.c:  Add some fflush() in necessary places.  Greatly improves the usability of the UI.

boards/z80/ez80/z20x/README.txt:  Trival update to README

drivers/serial/serial.c and tcdrain.c:  Correct some typos.
2020-03-14 14:07:45 -03:00
Xiang Xiao
3e41e82942 drivers/serial: Remove the nonexistent CMSDK_UART option 2020-02-24 08:47:36 -06:00
Xiang Xiao
cde88cabcc Run codespell -w with the latest dictonary again
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2020-02-23 22:27:46 +01:00
Xiang Xiao
bd4e8e19d3 Run codespell -w against all files
and fix the wrong correction
2020-02-22 14:45:07 -06:00
Xiang Xiao
f982ee43db drivers/serial: Remove the lowconsole driver
Replace with the syslog console driver which has more capability than lowconsole
2020-02-18 12:51:09 -06:00
Gregory Nutt
21aef0dd68 drivers/*/Kconfig: Consolidate driver Kconfig Files.
This commit does two things:

1. First, it reorganizes the driver Kconfig files so that each is self contained.  Before, a part of the driver configuration was in drivers/Kconfig and the rest was in in drivers/xyz/Konfig.  Now, all of the driver configuration is consolitated in the latter.

2. Second, this commit correct numerous serious errors introduced in a previous reorganization of the driver Kconfig files.  This was first noted by Nicholas Chin in PR270 for the case of the drivers/i2c/Kconfig but some examination indicates that the error was introduced into several other Kconfig files as well.

The nature of the introduced error was basically this:

- Nothing must intervene between the menuconfig selection and the following conditional configuration otpions.
- A previous PR erroneously introduced unconditional options between the menuconfig and the following confditional logic, thus corrupting the driver menus.

This error was easy to make because the driver Kconfig files were not well modularized.  Making them fully self-contained should eliminate this kind of error in the future.
2020-02-15 15:19:11 +01:00
Xiang Xiao
3cb259daa6 drivers/Kconfig: Move if/endif to subfolder Kconfig
Move if/endif to subfolder Kconfig and make ARCH_HAVE_XXX option always selectable by moving out of if/endif
2020-02-08 08:04:05 -06:00
Xiang Xiao
5c80b94820 Replace #include <semaphore.h> to #include <nuttx/semaphore.h>
Since the kernel side should call nxsem_xxx instead and remove the unused inclusion
2020-02-01 08:27:30 -06:00
Xiang Xiao
68951e8d72 Remove exra whitespace from files (#189)
* Remove multiple newlines at the end of files
* Remove the whitespace from the end of lines
2020-01-31 09:24:49 -06:00
Masayuki Ishikawa
784408e617 drivers: serial: Fix a wrong variable in serial.c in SMP mode. 2020-01-10 09:38:51 -06:00
Xiang Xiao
6a3c2aded6 Fix wait loop and void cast (#24)
* Simplify EINTR/ECANCEL error handling

1. Add semaphore uninterruptible wait function
2 .Replace semaphore wait loop with a single uninterruptible wait
3. Replace all sem_xxx to nxsem_xxx

* Unify the void cast usage

1. Remove void cast for function because many place ignore the returned value witout cast
2. Replace void cast for variable with UNUSED macro
2020-01-02 10:54:43 -06:00
David Sidrane
f822107efb drivers/serial/Kconfig: Split serial Rx/Tx DMA. 2019-12-03 07:06:30 -06:00
Gregory Nutt
3473ce91a9 drivers/serial/Kconfig: Fix a syntax error in CONFIG_RPMSG_SERIALINIT default. 2019-11-16 11:27:28 -06:00
ligd
6710ba47d8 drivers/serial/serial_dma.c: Still need reset xmit buffer when meet TCOFLUSH. This is an amendment to 8fb19a4359. 2019-11-07 06:40:21 -06:00
Gregory Nutt
c8831ac3c8 drivers/serial/serial_io.c and serial_dma.c: Fix some long lines. 2019-11-06 07:10:24 -06:00
ligd
8fb19a4359 drivers/serial/serial_dma.c: Avoid uart_xmitchars_done() move the tail bigger then head. If ioctl(TCOFLUSH) occurs between uart_xmitchars_dma() and uart_xmitchars_done(), TCOFLUSH will reset xmit buffer, then uart_xmitchars_done() will move the 'tail' ahead of 'head', then sends lots of wrong data. 2019-11-06 07:07:30 -06:00
Gregory Nutt
3e8366775f Run tools/nxstyle against some files. 2019-11-05 19:39:36 -06:00
David Sidrane
f078a2496b drivers/serial/serial_io.c: Uses signal numbers, but does not include signal.h. This has not problems but missing signal definitions have been seen in certain cases. 2019-11-04 16:24:41 -06:00
ligd
3480f7a0bc drivers/serial/serial.c: Only real uart will call pm_activity(). 2019-11-03 19:56:28 -06:00
Guiding Li
8b92305265 This commit brings in the drivers needed to support OpenAMP. These changes were ported from https://github.com/FishsemiCode/nuttx. The current state: Most drivers do now compile but are not yet verfied.
This port was effort of a number of people, I rather arbitrarily gave authorship to Guiding Li because he has the largest number of fundamental quashed commits from the Xiamoi repository.

Squashed commit of the following:

Author: Xiang Xiao <xiaoxiang@pinecone.net>
    include/nuttx/b2c.h and libx/libc/string:  Add non-standard string functions to deal with cases where there are more than 8-bits in a type char.

Author: Gregory Nutt <gnutt@nuttx.org>
    Fix several build issues/missing definitiona needed for OpenAMP build in drivers/.
    Add OpenAMP code has been reviewed and ran through tools/nxstyle (with all reports accounted for).

Author: Xiang Xiao <xiaoxiang@xiaomi.com>
    tools/:  Fix the minor issue in Makefile

Author: Gregory Nutt <gnutt@nuttx.org>
    drivers/rptun/rptun.c:  Review for coding standard.  Run against tools/nxstyle.
    tools/LibTargets.mk:  Fix some TABs that were turned into spaces by a copy-paste.
    fs/hostfs:  Add configure and build support for hostfs RPC.
    drivers/timer:  Add configure and build support for syslog RTC.
    drivers/syslog:  Add configure and build support for syslog RPC.
    drivers/serial:  Add configure and build support for serial RPC.
    Kconfig, tools/*.mk. openamp/:  Add basic OpenAMP build support.
    drivers/rptun:  Add configure and build support for OpenAMP tunnel drivers.
    drivers/net:  Update Make.defs and Kconfig for OpenSDA support.
    Remove drivers/clk/clk-rpmsg.c drivers/power/rpmsg_regulator.c.  These depend on upstreaming support for a new subsystem based on the clk/regulator is model from Linux.  Removed because we want to separate the activities.  We will just try to get the basic OpenAMP support in place for now.
    Remove drivers/misc/misc_rpmsg.c and include/nuttx/misc/misc_rpmsg.h.  These are specific to the Xiaomi application.

Author: zhuyanlin <zhuyanlin@pinecone.net>
    This commit brings in the OpenAMP OS driver/RPC components from https://github.com/FishsemiCode/nuttx.  Initial commit is source files only.  Additional changes to Kconfig and Make.defs files still needed.

Author: Jianli Dong <dongjianli@pinecone.net>
    This commit brings in the OpenAMP OS driver/RPC components from https://github.com/FishsemiCode/nuttx.  Initial commit is source files only.  Additional changes to Kconfig and Make.defs files still needed.

Author: Guiding Li <liguiding@pinecone.net>
    This commit brings in the OpenAMP OS driver/RPC components from https://github.com/FishsemiCode/nuttx.  Initial commit is source files only.  Additional changes to Kconfig and Make.defs files still needed.
2019-11-02 11:30:33 -06:00
Masayuki Ishikawa
dacd041a94 Merged in masayuki2009/nuttx.nuttx/fix_serial_driver_for_smp (pull request #1052)
drivers: serial: Fix data corruption when outputting data in SMP mode

Signed-off-by: Masayuki Ishikawa <Masayuki.Ishikawa@jp.sony.com>

Approved-by: Gregory Nutt <gnutt@nuttx.org>
2019-10-16 13:09:03 +00:00
Anjana
fae7e63479 We have ported NuttX on Renesas RX65N Micro-controller. This port includes following interfaces
1. Serial (UART) driver (13 ports)
2. Ethernet driver

This port is provided on two boards
1. RSK RX65N-2MB
2. GR-Rose

The port is built on Cygwin environment.

As part of this port, we have created two documents
1. Readme.txt for each board
2. User manual to provide information about development environment setup
Both these documents are placed under
1. /boards/renesas/rx65n/rx65n-grrose
2. /boards/renesas/rx65n/rx65n-rsk2mb

We have run 'nxstyle' for coding guidelines and 'ostest' for testing NuttX features on test platform.
We have shared the log with no errors as confirmation of valid port.
2019-10-11 23:36:57 +08:00
Juha Niskanen
e8b5dd4528 Fix use of undefined pp-token #errror, other typos. 2019-09-19 18:19:18 -06:00
Juha Niskanen
ebc6f51641 Fix some typos 2019-09-17 10:46:23 -06:00
Dave Marples
5179fa9a64 drivers/serial/serial.c: Limit the number of times that the poll semaphore is incrmented. 2019-06-13 16:23:04 -06:00
Dave Marples
a2def2a4d1 arch/arm/src/common/up_lwl_console.c: Add support for a 'Lightweight Link' protocol between a target and debugger for use when you need a console but the target doesn't have a spare serial port or other available resource. 2019-06-03 07:31:17 -06:00
Dave Marples
173897afb9 This commit implements RS485 RX/TX switching and RTS/CTS flow control for the IMXRT family. It has been tested on 1020 but I don't see any reason for issues on any other family member. 2019-05-30 13:45:36 -06:00
Gregory Nutt
788f77a9af Cosmetic 2019-05-26 12:33:42 -06:00
Gregory Nutt
b49be4bb20 Squashed commit of the following:
arch/:  Removed all references to CONFIG_DISABLE_POLL.  The standard POSIX poll() can not longer be disabled.
    sched/ audio/ crypto/:  Removed all references to CONFIG_DISABLE_POLL.  The standard POSIX poll() can not longer be disabled.
    Documentation/:  Removed all references to CONFIG_DISABLE_POLL.  The standard POSIX poll() can not longer be disabled.
    fs/:  Removed all references to CONFIG_DISABLE_POLL.  The standard POSIX poll() can not longer be disabled.
    graphics/:  Removed all references to CONFIG_DISABLE_POLL.  The standard POSIX poll() can not longer be disabled.
    net/:  Removed all references to CONFIG_DISABLE_POLL.  The standard POSIX poll() can not longer be disabled.
    drivers/:  Removed all references to CONFIG_DISABLE_POLL.  The standard POSIX poll() can not longer be disabled.
    include/, syscall/, wireless/:  Removed all references to CONFIG_DISABLE_POLL.  The standard POSIX poll() can not longer be disabled.
    configs/:  Remove all references to CONFIG_DISABLE_POLL.  Standard POSIX poll can no longer be disabled.
2019-05-21 18:57:54 -06:00
Gregory Nutt
abf6965c24 Squashed commit of the following:
libs/:  Remove references to CONFIG_DISABLE_SIGNALS.  Signals can no longer be disabled.
    syscall/:  Remove references to CONFIG_DISABLE_SIGNALS.  Signals can no longer be disabled.
    wireless/:  Remove references to CONFIG_DISABLE_SIGNALS.  Signals can no longer be disabled.
    Documentation/:  Remove references to CONFIG_DISABLE_SIGNALS.  Signals can no longer be disabled.
    include/:  Remove references to CONFIG_DISABLE_SIGNALS.  Signals can no longer be disabled.
    drivers/:  Remove references to CONFIG_DISABLE_SIGNALS.  Signals can no longer be disabled.
    sched/:  Remove references to CONFIG_DISABLE_SIGNALS.  Signals can no longer be disabled.
    configs:  Remove references to CONFIG_DISABLE_SIGNALS.  Signals can no longer be disabled.
    arch/xtensa:  Remove references to CONFIG_DISABLE_SIGNALS.  Signals can no longer be disabled.
    arch/z80:  Remove references to CONFIG_DISABLE_SIGNALS.  Signals can no longer be disabled.
    arch/x86:  Remove references to CONFIG_DISABLE_SIGNALS.  Signals can no longer be disabled.
    arch/renesas and arch/risc-v:  Remove references to CONFIG_DISABLE_SIGNALS.  Signals can no longer be disabled.
    arch/or1k:  Remove all references to CONFIG_DISABLE_SIGNALS.  Signals are always enabled.
    arch/misoc:  Remove all references to CONFIG_DISABLE_SIGNALS.  Signals are always enabled.
    arch/mips:  Remove all references to CONFIG_DISABLE_SIGNALS.  Signals are always enabled.
    arch/avr:  Remove all references to CONFIG_DISABLE_SIGNALS.  Signals are always enabled.
    arch/arm:  Remove all references to CONFIG_DISABLE_SIGNALS.  Signals are always enabled.
2019-04-29 14:52:05 -06:00
Gregory Nutt
0d203fd535 drivers/serial: The upper half serial driver configuration CONFIG_SERIAL_DMA used to enable DMA on both RX and TX streams. This was replaced with CONFIG_SERIAL_RXDMA and CONFIG_SERIAKL_TXDMA which will permit supporting DMA on only one or both streams. 2019-04-24 12:11:40 -06:00
Gregory Nutt
a64869aa67 CONFIG_NFILE_DESCRIPTORS=0 can no longer be used to disable the file system. NuttX with no file system does not make sense.
Squashed commit of the following:

    configs/:  The few configurations that formerly set CONFIG_NFILE_DESCRIPTORS=0 should not default, rather they should set the number of descriptors to 3.
    fs/:  Remove all conditional logic based on CONFIG_NFILE_DESCRIPTORS == 0
    tools/:  Tools updates for changes to usage of CONFIG_NFILE_DESCRIPTORS.
    syscall/:  Remove all conditional logic based on CONFIG_NFILE_DESCRIPTORS == 0
    libs/:  Remove all conditional logic based on CONFIG_NFILE_DESCRIPTORS == 0
    include/:  Remove all conditional logic based on CONFIG_NFILE_DESCRIPTORS == 0
    drivers/:  Remove all conditional logic based on CONFIG_NFILE_DESCRIPTORS == 0
    Documentation/:  Remove all references to CONFIG_NFILE_DESCRIPTORS == 0
    binfmt/:  Remove all conditional logic based on CONFIG_NFILE_DESCRIPTORS == 0
    arch/:  Remove all conditional logic based on CONFIG_NFILE_DESCRIPTORS == 0
    net/:  Remove all conditional logic based on CONFIG_NFILE_DESCRIPTORS == 0
    sched/:  Remove all conditional logic based on CONFIG_NFILE_DESCRIPTORS == 0
    sched/Kconfig:  CONFIG_NFILE_DESCRIPTORS may no longer to set to a value less than 3
    configs/:  Remove all settings for CONFIG_NFILE_DESCRIPTORS < 3
2019-02-11 12:09:26 -06:00
Gregory Nutt
7310fb7018 drivers/serial/uart_16550.c: Fix typo for UART1 flow field initialization 2019-01-27 10:57:41 -06:00
Xiang Xiao
4ed591355b drivers/serial/serial.c: Don't reset the circular buffer on close since DMA may still be transferring data in the background if the user closes the handle too quickly and the handle is opened with O_NONBLOCK. 2019-01-27 10:57:41 -06:00
Xiang Xiao
c07ba1eac1 drivers/serial/uart_16550.c: Fix error: 'g_uart0port' undeclared. 2019-01-27 10:57:41 -06:00
Gregory Nutt
f992fd9f51 drivers/serial/serial.c: Call pm_activity() when characters are received on a console device. 2019-01-27 10:57:41 -06:00
Xiang Xiao
63276899bf drivers/serial/serial.c: Initialize OPOST and ONLCR in uart_register 2019-01-27 10:57:40 -06:00
ligd
5223d7a391 drivers/serial/uart_16550.c: Remove disabling of interrupts in up_earlyserialinit. up_irqinitialize() already disable all interrupts 2018-11-08 10:21:49 -06:00
zhangyuan7
a7d9d4bc1e drivers/serial/uart_16550.c: Fox UART flow control issue. UART_MCR_RTS need be high even UART_MCR_AFCE is enabled 2018-11-08 10:21:16 -06:00
Gregory Nutt
3a4984a40b Rename file_close_detached() to juse file_close() for better consistency in naming. 2018-09-15 13:04:56 -06:00
Gregory Nutt
a7fd58c4db Squashed commit of the following:
many locations:  Change occurences of open() followed by file_detach() to file_open().  Change most non-controversion calls to open() to nx_open().

    fs/inode/fs_fileopen.c:  Flesh out file_open() with some interim, placeholder logic.

    fs/inode/fs_fileopen.c:  Add a framework for a file_open() implementation (no real logic in place yet).

    fs/vfs/fs_open.c:  Add nx_open() which is the same as open() except that it does not create a cancellation point nor does it modify the errno variable.
2018-09-15 10:49:41 -06:00
Gregory Nutt
993321dda6 drivers/serial: Add support for Ctrl-Z. This works just like the recently added Ctrl-C support except that SIGSTP is sent when the Ctrl-Z characters is encountered vs. SIGINT. 2018-09-02 15:36:25 -06:00
Gregory Nutt
a7265d71c6 This commit adds support for default signal actions for SIGSTOP, SIGSTP, and SIGCONT.
Squashed commit of the following:

    Add procfs support to show stopped tasks.  Add nxsig_action() to solve a chicken and egg problem:  We needed to use sigaction to set default actions, but sigaction() would refuse to set actions if the default actions could not be caught or ignored.

    sched/signal:  Add configuration option to selectively enabled/disable default signal actions for SIGSTOP/SIGSTP/SIGCONT and SIGKILL/SIGINT.  Fix some compilation issues.

    sched/sched:  Okay.. I figured out a way to handle state changes that may occur while they were stopped. If a task/thread was already blocked when SIGSTOP/SIGSTP was received, it will restart in the running state.  I will appear that to the task/thread that the blocked condition was interrupt by a signal and returns the EINTR error.

    sched/group and sched/sched:  Finish framework for continue/resume logic.

    sched/signal:  Roughing out basic structure to support task suspend/resume
2018-08-30 10:27:18 -06:00
Xiang Xiao
51708745f6 drivers/serial/serial_dma.c: Fix typo error in uart_recvchars_dma() 2018-08-29 08:31:43 -06:00
Xiang Xiao
09c907b446 drivers/serial/serial.c: Fix warning: 'value computed is not used' 2018-08-29 06:10:53 -06:00
Gregory Nutt
dcb3d4b050 sched/signal: Add logic and an interface to determin if a signal can be caught or ignored. sigaction now correctly returns EINVAL on any attempt to catch or ignore such signals (only SIGKILL for now and only if CONFIG_SIG_DEFAULT=y). 2018-08-28 12:39:03 -06:00
Gregory Nutt
0756cf66ed sched/signal: Add support for SIGINT in addition to SIGKILL. drivers/serial: Use SIGINT instead of SIGKILL when control-C is pressed. 2018-08-28 12:15:31 -06:00
Gregory Nutt
0b60bbc6d3 Update some Kconfig comments. 2018-08-28 10:51:34 -06:00
Gregory Nutt
e7ce9bbfc4 drivers/serial: Integrate new Ctrl-C logic with the ISIG flag in the termios c_lflag. Fix several compiler errors resulting from recently flurry of renaming. 2018-08-28 09:15:29 -06:00
Gregory Nutt
c0d234a474 Squashed commit of the following:
drivers/serial/Kconfig:  It is no longer necessary to restrict Ctrl-C handling to the FLAT build

    sched/signal:  Add a new configuration option to select signal default actions, separate handling of signal default actions from both task startup logic and from the serial TTY Ctrl-C logic.  Add a signal set in the group structure to keep track of what signals have been set to the default action.  In dispatching signals in PROTECTED or KERNEL mode, use this signal set to determine if the default signal handler is attached and dispatch the signal in kernel mode for the default actions.
2018-08-27 11:40:09 -06:00
Gregory Nutt
8530fe0a7c Update some comments. 2018-08-26 13:14:26 -06:00
Xiang Xiao
ead2c40cd4 Squashed commit of the following:
drivers/serial/uart_16550.c: Support 16550 auto hardware flow control

    drivers/serial/uart_16550.c:  Add configuration option CONFIG_16550_SUPRESS_INITIAL_CONFIG.  This is identical to the standard configuration in arch/Kconfig CONFIG_SUPPRESS_UART_CONFIG, but with scope of only the 16550 driver.
2018-08-26 11:37:16 -06:00
anchao
fa08e69cca drivers/serial/uart_16550.c: Add serial termios handling 2018-08-26 11:30:51 -06:00
Xiang Xiao
b426e35ed2 drivers/serial/uart_16550.c: Fix UART 16550 warning when disable HAVE_16550_CONSOLE. 2018-08-26 11:28:57 -06:00
ligd
1cbaae77cc drivers/serial/uart_16550.c: Add stub implementations of DMA-related methods in the 16550 UART v-table. 2018-08-26 11:22:44 -06:00
Xiang Xiao
46e47c8dcf Squashed commit of the following:
drivers/serial/uart_16550.c:  Add a configuration, analogous to the STM32 configuration option, to suppress the NuttX standard re-ordering for /dev/ttySN for special case of the 16550 UART.

    config/serial: UART 16550: Add CONFIG_SERIAL_UART_ARCH_MMIO option so the a memory mapped device doesn't need to provide uart_getreg() and uart_putreg() implementations.

    u16550_txempty() should check UART_LSR_TEMT to avoid some data left in the transmit FIFO
2018-08-26 11:17:33 -06:00
Xiang Xiao
ea62b13fd0 drivers/serial/serial.c: In DMA mode, the use of uart_disablexinit() is insufficient to protect a critical section. enter/leave_critical_section() must be used in those cases if CONFIG_SERIAL_DMA=y 2018-08-26 10:30:48 -06:00
Xiang Xiao
9e922873d4 drivers/serial: Move head/tail pointer reset to uart_recvchars_dma since dma may be still transferring in the background. 2018-08-26 10:03:30 -06:00
Xiang Xiao
4465cccdbd drivers/serial/serial.c: Don't overwrite nwritten unconditionally on UART write failure. 2018-08-26 09:56:02 -06:00
xuanlin
c8df5f3df3 drivers/serial/serial.c: Support UART direct write for non console device 2018-08-26 09:47:25 -06:00
ligd
4c4d2b54a3 Send poll() notification when the Tx buffer is flushed 2018-08-26 09:39:16 -06:00
Gregory Nutt
55b7938f0a drivers/serial/Kconfig: Make feature dependent on CONFIG_BUILD_FLAT. 2018-08-26 08:56:16 -06:00
ligd
11f8dc735c Squashed commit of the following:
drivers/serial:  Add Ctrl-C/Ctrl-X support.  This is an initial working implementation that still requires that several details be resolved.

    sched/task/task_start.c: Add default signal action to SIGKILL.
2018-08-26 08:49:08 -06:00
Gregory Nutt
729a65f3ab drivers/serial/pty.c: Add support so that a PTY can poll for both IN/OUT event simultaneously. 2018-08-26 07:27:19 -06:00
Gregory Nutt
8fdbb1e0a4 Elimate use of the non-standard type systime_t and replace it the equivalent, standard type clock_t
Squashed commit of the following:

    sched:  Rename all use of system_t to clock_t.
    syscall:  Rename all use of system_t to clock_t.
    net:  Rename all use of system_t to clock_t.
    libs:  Rename all use of system_t to clock_t.
    fs:  Rename all use of system_t to clock_t.
    drivers:  Rename all use of system_t to clock_t.
    arch:  Rename all use of system_t to clock_t.
    include:  Remove definition of systime_t; rename all use of system_t to clock_t.
2018-06-16 12:16:13 -06:00
Gregory Nutt
c74e9fd6da Update a readme and some comments. 2018-05-27 15:13:54 -06:00
Gregory Nutt
f3392e0a6c drivers/serial: Add a timeout to uart_tcdrain(). Even if tcflush() is used to discard buffered data, the close() can still hang if (a) hardware flow control is enabled, (b) CTS == 1, and (c) there is data stuck in the hardware Tx FIFO. tcflush() does not currently clear the MCU serial drivers' hardware Tx FIFOs. This is a workaround for that. 2018-05-27 11:39:34 -06:00
Gregory Nutt
759e510c28 Per Matias Edlund: I recently used the tcflush function and found that it failed with ENOTTY. The reason is that the TCFLSH case in the function uart_ioctl in the file drivers/serial/serial.c does not update the ret value." On success, the TCFLSH IOCTL logic needs to explicitly set the return value (ret) to zero. 2018-03-26 13:54:47 -06:00
Gregory Nutt
9c1efc7ab9 drivers/serial/Kconfig: Kconfig is too big, divide into Kconfig, Kconfig-uart, Kconfig-usart, Kconfig-sci, Kconfig-16550. More than one MCU supports LPUARTs. Add Kconfig-lpuart and remove MCU-specific LPUART definitions. Affects Kinetis and STM32L4. 2018-03-14 10:33:27 -06:00
Dmitriy Linikov
a8c58607e9 Merged in hardlulz/modem-3.0-nuttx/fix-sem-EINTR (pull request #603)
Added ECANCELED condition to DEBUGASSERT-s checking sem_wait result

Approved-by: Gregory Nutt <gnutt@nuttx.org>
2018-02-20 18:24:53 +00:00
Gregory Nutt
1567b82429 Make sure that labeling is used consistently in all function headers (part 2). 2018-02-01 12:03:55 -06:00
Gregory Nutt
8bc90a1899 This adds basic architectural support for the LPC546xx family and includes support for the LPCXpresso-LPC54628 board. The basic NSH port is almost complete... still lacking GPIO support and LED support. There are still no significant drivers available.
Squashed commit of the following:

    arch/arm/src/lpc54xx:  Finish off some missing logic.  Complete now execpt for GPIO and LED support.
    arch/arm/src/lpc54xx:  Add lpc54_clrpend.c
    arch/arm/src/lpc54xx:  Serial driver is complete and compiles.
    arch/arm/src/lpc54xx:  Add beginning of a serial driver (still missing some logic)
    arch/arm/src/lpc54xx:  Fleshes out low level USART intialization.
    arch/arm/src/lpc546xx/Kconfig: Add hooks to integrate with common seril upper half.
    arch/arm/src/lpc54xx:  Beginning of USART console support.
    arch/arm/src/lpc54xx: Completes very basic clock configuration.
    arch/arm/src/lpc54xx:  Add clocking logic (still not complete)
    arch/arm/src/lpc54xx:  Beginning of PLL configuration logic.
    arch/arm/src/lpc54xx:  Fix a few things from first compile attempt.  Compilation cannot work until I at least finish the clock configuration logic.
    arch/arm/src/lpc54xx: Addes some SysTick logic.
    arch/arm/src/lpc54xx:  Completes basic startup logic (sans clock configuration) and interrupt configuration.
     arch/arm/src/lpc54xx:  Add generic ARMv7-M start-up logic (needs LPC54628 customizations); add emtpy file that will eventually hold the clock configuration logic.
    arch/arm/src/lpc54xx:  Add (incomplete) SYSCON register definition header file.
    arch/arm/src/lpc54xx:  Add FLEXCOMM header file.
    arch/arm/src/lpc54xx:  Bring in tickless clock logic from LPC43; configs/lpcxpresso-lpc54628: mount procfs if enabled.
    arch/arm/src/lpc54xx: Add RIT clock definitions; add SysTick initialization (not finished)
    LPC54xx and LPCXpresso-LPC54628: add more boilerplate files and stubbed out files.
    arch/arm/src/lpc54xx:  Add (incomplete) USART header file.
    Add another condition to a Kconfig; refresh a defconfig.
    arch/arm/src/lpc54xx/chip: Add LPC54628 memory map header files.
    configs/lpcxpresso-lpc54628:  Add basic build files for the LPCXpresso-LPC54628
    arch/: Basic build directory structure for the LPC54628
2017-12-07 13:30:02 -06:00
Frank Benkert
c6942f6137 drivers/serial/serial.c: Optimize wait time in tcdram() for buffer emptying
According to the specification, the close function must wait until all data
has been written before it closes the file (except O_NONBLOCK is set). The
maximum waiting time for this is not specified.

To be able to edit the file list of the process, the close function has to lock
the file list semaphore. After that the close function of the serial driver is
called.

Waiting for the complete transmission of all data is done in the serial driver.
This causes the semaphore to remain locked until all data has been sent.
However, no other thread of the process can edit the file list for that time
(open, close, dup2, etc.). This is not optimal in a multithreaded environment.
Therefore, we have to keep the waiting time within the driver as short as possible.
2017-11-02 08:53:14 -06:00
Gregory Nutt
85a1a3cc98 drivers/usbdev: Correct input flow control logic when watermarks are not enabled. Problem not by and change based on suggestion by Juha Niskanen. 2017-10-18 06:49:11 -06:00
Gregory Nutt
5b04c25dcd drivers/serial/tcdrain: tcdrain() was recently added to the NuttX C library. But there is a problem. The specification of tcdrain() requires that it be a cancellation point. In order to do this, tcdrain was moved from the C library into the OS and the addition cancellation point hooks were added. In non-FLAT builds, access via system calls is also now supported. 2017-10-06 10:55:36 -06:00
Gregory Nutt
936df1bcb5 Adds new OS internal functions nxsig_sleep() and nxsig_usleep. These differ from the standard sleep() and usleep() in that (1) they don't cause cancellation points, and (2) don't set the errno variable (if applicable). All calls to sleep() and usleep() changed to calls to nxsig_sleep() and nxsig_usleep().
Squashed commit of the following:

    Change all calls to usleep() in the OS proper to calls to nxsig_usleep()

    sched/signal:  Add a new OS internal function nxsig_usleep() that is functionally equivalent to usleep() but does not cause a cancellaption point and does not modify the errno variable.

    sched/signal:  Add a new OS internal function nxsig_sleep() that is functionally equivalent to sleep() but does not cause a cancellaption point.
2017-10-06 10:15:01 -06:00
Gregory Nutt
9568600ab1 Squashed commit of the following:
This commit backs out most of commit b4747286b1.  That change was added because sem_wait() would sometimes cause cancellation points inappropriated.  But with these recent changes, nxsem_wait() is used instead and it is not a cancellation point.

    In the OS, all calls to sem_wait() changed to nxsem_wait().  nxsem_wait() does not return errors via errno so each place where nxsem_wait() is now called must not examine the errno variable.

    In all OS functions (not libraries), change sem_wait() to nxsem_wait().  This will prevent the OS from creating bogus cancellation points and from modifying the per-task errno variable.

    sched/semaphore:  Add the function nxsem_wait().  This is a new internal OS interface.  It is functionally equivalent to sem_wait() except that (1) it is not a cancellation point, and (2) it does not set the per-thread errno value on return.
2017-10-04 15:22:27 -06:00
Gregory Nutt
42a0796615 Squashed commit of the following:
sched/semaphore:  Add nxsem_post() which is identical to sem_post() except that it never modifies the errno variable.  Changed all references to sem_post in the OS to nxsem_post().

    sched/semaphore:  Add nxsem_destroy() which is identical to sem_destroy() except that it never modifies the errno variable.  Changed all references to sem_destroy() in the OS to nxsem_destroy().

    libc/semaphore and sched/semaphore:  Add nxsem_getprotocol() and nxsem_setprotocola which are identical to sem_getprotocol() and set_setprotocol() except that they never modifies the errno variable.  Changed all references to sem_setprotocol in the OS to nxsem_setprotocol().  sem_getprotocol() was not used in the OS
2017-10-03 15:35:24 -06:00
Gregory Nutt
83cdb0c552 Squashed commit of the following:
libc/semaphore:  Add nxsem_getvalue() which is identical to sem_getvalue() except that it never modifies the errno variable.  Changed all references to sem_getvalue in the OS to nxsem_getvalue().

    sched/semaphore:  Rename all internal private functions from sem_xyz to nxsem_xyz.  The sem_ prefix is (will be) reserved only for the application semaphore interfaces.

    libc/semaphore:  Add nxsem_init() which is identical to sem_init() except that it never modifies the errno variable.  Changed all references to sem_init in the OS to nxsem_init().

    sched/semaphore:  Rename sem_tickwait() to nxsem_tickwait() so that it is clear this is an internal OS function.

    sched/semaphoate:  Rename sem_reset() to nxsem_reset() so that it is clear this is an internal OS function.
2017-10-03 12:52:31 -06:00
Gregory Nutt
8394f9b60f Squashed commit of the following:
configs/z80sim and xtrs:  Serial driver lower halfs ioctl methods should return a negated errno value, not set the errno variable.

    drivers/wireless:  CC1101 driver not permitted to set errno.

    drivers/sensors:  LIS331DL driver not permitted to set errno.

    drivers/lcd: ILI9341 initialize method not permitted to set errno,

    drivers/serial: 16550 UART driver IOCTL method must not set errno; it must return a negated errno value.
2017-09-30 12:59:33 -06:00
Gregory Nutt
bd027b9019 serial.c: Use common TX drain logic when closing a driver as with the TCDRAIN IOCTL. 2017-08-01 10:14:24 -06:00
Gregory Nutt
4f0238339e serial.c: Finish implementation of TCDRAIN. Based partly on logic from Sebastien Lorquet. 2017-08-01 07:39:08 -06:00
Sebastien Lorquet
e22912db37 drivers/serial/serial.c: Add support for TCFLUSH 2017-08-01 06:30:52 -06:00
Gregory Nutt
0de294a586 Fix lots of occurrences of 'the the', 'the there', 'the these', 'the then', 'the they. 2017-05-11 13:35:56 -06:00
Gregory Nutt
d3b9f5b37f Syslog buffering: Use IOBs to buffer data, not an on-stack buffer 2017-05-10 17:36:08 -06:00
Stefan Kolb
591f35be87 I discovered a problem in the file drivers/serial/serial.c concerning the function uart_close(…). In the case that a serial device is opened with the flag O_NONBLOCK the function uart_close(…) blocks until all data in the buffer is transmitted. The function close(…) called on an handle opened with O_NONBLOCK should not block. The problem occurred with a CDC/ACM device. 2017-05-10 07:59:58 -06:00
Gregory Nutt
e3c9e9e0b8 UART 16550: Missing left parenthesis in function prototype. This is Bitbucket Issue #41. 2017-04-20 06:50:11 -06:00
Jussi Kivilinna
e2702cbe4e STM32F7: fix UART7 and UART8 IFLOWCONTROL options 2017-04-06 08:46:24 -06:00
Gregory Nutt
b4ff7391f8 Convert more drivers to use use irq_attach with argument. 2017-02-27 10:44:13 -06:00
Mark Schulte
b3222bbc8a irq_dispatch: Add argument pointer to irq_dispatch
Provide a user defined callback context for irq's, such that when
registering a callback users can provide a pointer that will get
passed back when the isr is called.
2017-02-27 06:27:56 -06:00
Gregory Nutt
08c001196b drivers/: Remove all explicit use of 'hidden' macro _info. Code must never use this directly. Code must always use a debug macro such as info which is basic on _info but can be appropriately filtered. 2017-01-15 13:00:50 -06:00
Gregory Nutt
4fcbe8e410 drivers: Disable priority inheritance on all semaphores used for signaling 2016-11-03 11:00:47 -06:00