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49 Commits

Author SHA1 Message Date
Nicola Lunghi
45127e04b9 Add support for UART hardware flow control 
This allows assigning platform pins to the CTS/RTS lines.
If provided, these will be muxed as UART when flow control is enabled.

Signed-off-by: Nicola Lunghi <nicola.lunghi@emutex.com>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
 2017-09-12 11:48:02 +02:00
Alex Tereschenko
822160b7de uart.c: fix potential use of uninitialized variable 
Signed-off-by: Alex Tereschenko <alext.mkrs@gmail.com>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
 2017-05-29 18:47:45 +02:00
Tapani Utriainen
a6f2464bb1 uart: add a function to query current UART settings 
This patch adds a function to query UART settings in an unintrusive way.
It can be used using a uart index or a devpath and it strives to just
read out the settings without affecting the state of the UART.

Signed-off-by: Tapani Utriainen <tapani@technexion.com>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
 2017-05-28 08:11:21 +02:00
Tapani Utriainen
04c5593cef uart.c: add function to return baudrate as an integer from a speed_t 
Signed-off-by: Tapani Utriainen <tapani@technexion.com>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
 2017-05-28 08:11:21 +02:00
Tapani Utriainen
818ae995c2 uart.c: fix return value for invalid baudrates in uint2speed 
This patch probably changes no functionality.

Before this patch the return value 0 was used for invalid baudrates in
uint2speed, but this is not a proper speed_t constant.
Instead the constant B0 is returned now, since on x86 and arm linux
architectures B0 is defined as 0.

Signed-off-by: Tapani Utriainen <tapani@technexion.com>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
 2017-05-28 08:11:21 +02:00
Tapani Utriainen
e7b0a3e809 uart: add a null pointer check before dereferencing plat->adv_func 
Signed-off-by: Tapani Utriainen <tapani@technexion.com>
Signed-off-by: Alex Tereschenko <alext.mkrs@gmail.com>
 2017-05-15 21:00:34 +02:00
Jon Trulson
e0a0dac47b uart: add tcsendbreak support 
Signed-off-by: Jon Trulson <jtrulson@ics.com>
Signed-off-by: Alex Tereschenko <alext.mkrs@gmail.com>
 2017-05-08 21:15:33 +02:00
Brendan Le Foll
69fcd861a7 android-things: Peripheralmanager target build 
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
 2017-04-24 14:42:54 -07:00
Brendan Le Foll
4c7616fe91 android-things: Prep for peripheralmanager support 
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
 2017-04-24 14:42:54 -07:00
Nicola Lunghi Emutex
2ea68105f0 uart.c: Simple compiler error fixes 
Signed-off-by: Nicola Lunghi Emutex <nicola.lunghi@emutex.com>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
 2017-02-06 21:34:13 +00:00
Brendan Le Foll
1c180e393c uart.c: Allocate mem for dev->path to fix getDevicePath in raw mode 
When mraa_init_uart_raw is called it places the path arg in dev->path. This
works in non raw mode because the path is statically in the device
configuration but in raw mode this is a dynamic address meaning that we need to
copy it. Fix this by simply copying the device path rather than relying on the
user keeping that string path in memory.

Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
 2016-11-30 11:33:40 +01:00
Alex Tereschenko
9f03afbcbc mock: implement UART functionality 
Signed-off-by: Alex Tereschenko <alext.mkrs@gmail.com>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
 2016-10-25 12:04:04 +01:00
Alex Tereschenko
8a9efd1bcc uart.c: add replace functions used by mock 
Signed-off-by: Alex Tereschenko <alext.mkrs@gmail.com>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
 2016-10-25 12:04:04 +01:00
Alex Tereschenko
1b3a9371a1 uart.c: rework mraa_uart_init_raw to use common cleanup block 
This will align it with spi.c and make it easier to introduce
a replace function.

Signed-off-by: Alex Tereschenko <alext.mkrs@gmail.com>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
 2016-10-25 12:04:04 +01:00
Alex Tereschenko
1af737f3d9 mock: mraa with mock platform now works in Windows under MSYS2 
Signed-off-by: Alex Tereschenko <alext.mkrs@gmail.com>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
 2016-07-05 19:32:58 +01:00
wda2945
1ebe377487 uart.c: Improve error handling 
Changed syslog messages and some error returns.

Signed-off-by: Martin G Lane-Smith <mlanesmith@gmail.com>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
 2016-04-15 14:02:02 +01:00
Shiran Ben-Melech
cae63bbd52 firmata: Added option to set uart non blocking state 
Signed-off-by: Shiran Ben-Melech <shiran.ben-melech@intel.com>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
 2016-03-22 18:12:29 +00:00
Bernd Kuhls
7fce2e2a3a uart.c: fix build with musl libc 
musl does not define CMSPAR on all archs, patch inspired by
http://git.alpinelinux.org/cgit/aports/plain/main/freerdp/musl-fix.patch

musl needs sys/select.h to provide fd_set.

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
 2016-02-02 10:37:31 +00:00
Henry Bruce
63604ef5cc uart: Added timeout support for uart read 
Signed-off-by: Henry Bruce <henry.bruce@intel.com>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
 2016-01-06 10:38:51 +00:00
Srinivas Kandagatla
38aa9e8fe6 uart.c: make use of no_bus_mux flag 
This patch makes use of no_bus_mux flag in mraa_board_t to skip
unnessary mux checks.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
 2015-12-14 11:00:04 +00:00
Alex Tereschenko
2dd46494ff uart.c: fixed typo in debug output 
Signed-off-by: Alex Tereschenko <alext.mkrs@gmail.com>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
 2015-11-18 13:55:53 +00:00
damcclos
c89b04eb19 uart.c: fix to UART even parity 
Signed-off-by: David McCloskey <davmcclo@gmail.com>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
 2015-10-26 16:00:18 +00:00
Brendan Le Foll
07343e2ee7 mraa: Remove global advance_func struct and place it in platform configuration 
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
 2015-09-08 14:42:04 +01:00
Brendan Le Foll
cfff6c3c98 uart.c: Fix return value check for tcflush() 
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
 2015-09-02 14:39:54 +01:00
Alex Tereschenko
6d39902a8a uart.c: Fixed UART initialization, now we set and apply defaults 
Closes #221.

Signed-off-by: Alex Tereschenko <alext.mkrs@gmail.com>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
 2015-07-22 11:07:04 +01:00
Thomas Ingleby
fd50ea087b uart: fix issue where a index is checked before set 
Related to #152

Signed-off-by: Thomas Ingleby <thomas.c.ingleby@intel.com>
 2015-06-29 19:51:34 +01:00
Brendan Le Foll
b4655b250b uart.c: Fix some wrong return checks 
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
 2015-06-02 08:42:37 +01:00
Jon Trulson
b142f3fdda uart: fix missing inversion that will clear all other flags 
Signed-off-by: Jon Trulson <jtrulson@ics.com>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
 2015-06-01 11:20:18 +01:00
Brendan Le Foll
236a8e9586 uart: make mraa_uart_get_dev_path return const char* 
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
 2015-06-01 10:54:40 +01:00
Brendan Le Foll
347fd449f9 uart: Make C API use const where appropriate 
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
 2015-06-01 09:36:00 +01:00
Thomas Ingleby
b982160ec5 uart: update C API 
Signed-off-by: Thomas Ingleby <thomas.c.ingleby@intel.com>
 2015-05-28 23:31:12 +01:00
Brendan Le Foll
19cad5cf24 uart: bunch of small changes to make C api work 
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
 2015-05-28 23:31:11 +01:00
Brendan Le Foll
b02f8b4d50 uart.c: add missing return values 
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
 2015-05-28 23:31:11 +01:00
Thomas Ingleby
4d86860e0c uart: remove un-needed includes from uart.h 
No need for many included

Signed-off-by: Thomas Ingleby <thomas.c.ingleby@intel.com>
 2015-05-28 23:31:11 +01:00
Thomas Ingleby
7e47b05c8f uart: move internal static function to top of file 
Signed-off-by: Thomas Ingleby <thomas.c.ingleby@intel.com>
 2015-05-28 23:31:11 +01:00
Brendan Le Foll
0a516ef3bf uart: make initial dump of uart module 
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
 2015-05-28 23:31:11 +01:00
Jon Trulson
88f3052d99 uart: use an unsigned int for baud rate rather than speed_t 
uart.c contains a static conversion function that will translate known
baud rates into their speed_t counter parts.  If an unsupported baud
rate is selected, a diagnostic will be emitted via syslog and a
default of B9600 will be chosen.

Signed-off-by: Jon Trulson <jtrulson@ics.com>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
 2015-05-28 23:31:11 +01:00
Jon Trulson
c30457e434 uart: add capability to check if data can be read from device 
Signed-off-by: Jon Trulson <jtrulson@ics.com>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
 2015-05-28 23:31:11 +01:00
Jon Trulson
cf14939cca uart: add uart device read and write functionality 
Signed-off-by: Jon Trulson <jtrulson@ics.com>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
 2015-05-28 23:31:11 +01:00
Jon Trulson
6d269eeabd uart: add uart device open and close functionality 
Signed-off-by: Jon Trulson <jtrulson@ics.com>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
 2015-05-28 23:31:11 +01:00
Jon Trulson
bdadbb8b01 uart: add fd (file descriptor) to uart context 
Signed-off-by: Jon Trulson <jtrulson@ics.com>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
 2015-05-28 23:31:11 +01:00
Jon Trulson
dd807308ac uart.c: mraa_uart_get_dev_path return NULL on error 
Signed-off-by: Jon Trulson <jtrulson@ics.com>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
 2015-02-19 10:48:02 +00:00
Thomas Ingleby
25bd897ec5 uart: use const char* instead of plain char* 
Signed-off-by: Thomas Ingleby <thomas.c.ingleby@intel.com>
 2015-01-20 17:14:12 +00:00
Thomas Ingleby
9cfbc87924 uart: add function mraa_uart_get_dev_path 
Used for getting the path to the character device under linux for uart
device. i.e. "/dev/ttyS0"

Adds paths to existing platforms.
Closes #84

Signed-off-by: Thomas Ingleby <thomas.c.ingleby@intel.com>
 2015-01-20 16:08:49 +00:00
Thomas Ingleby
ed4c68eba1 uart: cleanup and bring inline with standard 
Removed mraa_setup_uart from core mraa.c moved logic within init
function
Add more syslog output for easier debugging.

Signed-off-by: Thomas Ingleby <thomas.c.ingleby@intel.com>
 2015-01-20 14:44:28 +00:00
Brendan Le Foll
a6b3d384b2 syslog: unify error msg style 
syslog messages should be written as <module>: Message in order to increase
readability and usefulness

Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
 2014-10-22 21:09:11 +01:00
Thomas Ingleby
77be6da29c uart: add pre uart hook 
Signed-off-by: Thomas Ingleby <thomas.c.ingleby@intel.com>
 2014-10-20 18:43:58 +01:00
Thomas Ingleby
071951e926 uart: add init post hook 
Signed-off-by: Thomas Ingleby <thomas.c.ingleby@intel.com>
 2014-10-19 16:14:24 +01:00
Thomas Ingleby
23304fb6c4 uart: barebones uart module added. 
* Only defined call is the init. Will then expose the uart from
* the multiplexors.

Signed-off-by: Thomas Ingleby <thomas.c.ingleby@intel.com>
 2014-07-10 01:09:46 +01:00