Commit Graph

10922 Commits (eed1cec5d8df5aa1d11af458563c2e83260651cf)

Author SHA1 Message Date
Hasnain Virk 1afc7bfbef A Reference CellularInterface driver
* Implements CellularInterface
* Reference design for CellularInterface implementations
* Uses an external mbed-os IP stack and talks to modem over PPP.
2017-05-31 15:02:11 +03:00
Hasnain Virk ccbf00571f Introducing hal/modem_api.h
This provides a HAL layer for Modem bearing devices.
Provides a standard interface to upper layer drivers.
Platform providers will be implementing this API under their
specific targets.

As a reference, two implementations are provided under TARGET_C027 (UBLOX)
and TARGET_MTS_DRAGONFLY_F411RE (MultiTech).

targets.json now contains a tag "MODEM" which tells that this target
has a modem and the modem_api is protected by a flag DEVICE_MODEM
(following the DEVICE_SERIAL fashion ).
2017-05-31 15:02:11 +03:00
Hasnain Virk fcbcfafec5 Preparing grounds for modem api
* Lays down ground for mbed modem_api
* Standardizes pin names relating to modem device for UBLOX C027 and MTS_DRAGONFLY_F411RE
  devices
* Ublox modem api is changed to use a standard, platform independent name so that same
  api could be used with multiple ubloc modems.
* DCD Polarity macro is added to assist the driver in knowing correct polarity
2017-05-31 15:02:11 +03:00
Hasnain Virk 925f54bfce Heap size reduced to 64k for IAR
IAR heap sizes were hard configured to be 96k which is 75% of the
total RAM available. Reduced it to be 64k which is half of the available RAM.
2017-05-31 15:02:11 +03:00
Hasnain Virk 658ddf7c30 ARMCC link errors fixed, nsapi_ppp glue layer changed
GCC have not been capable enough to catch some linker errors which arose when
ethernet support for LWIP was disabled. Checks have been added to make sure that
unrefrenced code is not linked in.

nsapi_ppp glue layer is made more transparent to public cellular API. Storage of IP
addresses is removed. PPP layer already stores the addresses, so we pass the pointer back
to the upper layers.

If PPP is not used, we provide dummy functions.
2017-05-31 15:02:11 +03:00
Hasnain Virk 01088647b9 Finalizing the public API for Cellular
* state machine corrections
* adding various standard API methods
* Addition/revision/enhancement of the nsapi_ppp glue layer
* Turning off debug by default
2017-05-31 15:02:11 +03:00
Hasnain Virk f602c936ff Redirecting LWIP debug trace to mbed-trace
This piece of code redirects LWIP debug trace to mbed-trace if configured.
This enables us to have universal traces.
2017-05-31 15:02:11 +03:00
Hasnain Virk 3b44f4758d Adding support for APN lookup
Mainly reutilizing code from ublox C027 support lib.
As we are using external PDP context, i.e., an external IP stack,
we will pass username and password to underlying stack running PPP.
We only support CHAP as the authentication protocol.
2017-05-31 15:02:11 +03:00
Hasnain Virk 93f436ebe0 Using DCD line to invoke poll() HUP
POSIX poll() provides a mechanism to attach a POLL_HUP event
if the modem or device hangs up on you. POLL_HUP and POLL_OUT are
mutually exclusive. We poll in the PPP_input() routine if the modem
hung up. If it did we stop the data consumption, close PPP and go back
to the driver for reserruction of AT parser and subsequent retries or
application specific actions.
This is achieved by attaching an interrupt to the DCD line of the modem.
When DCD line goes high (off), we have lost the carrier. So we record an
POLLHUP event using _poll_change().
2017-05-31 15:02:11 +03:00
Hasnain Virk 87a4580e5f Bug fixes & state machine corrections
In case of carrier lost, we would like to inform PPP data pump.
That involved setting up link status flag down semaphores.
mbed_lwip_bringup() and mbed_lwip_bringdown() had been Ethernet specific only.
We extend these routines to support PPP as well. Currently we support only one interface
at a time. However, future enhancement to multi interface support should be trivial.
2017-05-31 15:02:11 +03:00
Kevin Bracey 7e3c529d21 Unify LWIP Ethernet and PPP initialisation 2017-05-31 15:02:11 +03:00
Hasnain Virk 2abb078f27 Adding PPP link status callback
mbed_ppp_init() is extended to take a function ptr.
ppp_lwip will call this callback upon a change in ppp link status.
in the beginning, the Ublox driver waits until the PPP link is established properly.
2017-05-31 15:02:11 +03:00
Hasnain Virk 091396defe Adding mbed_trace to ppp_lwip
We introduce here mbed_trace to ppp_lwip shim layer.
If for some reason, FEATURE_COMMON_PAL is not included in the build,
dummies for trace functions are provided.
2017-05-31 15:02:11 +03:00
Kevin Bracey be00c1720b Separate LWIP core and Ethernet interface initialisation
Will allow LWIP to be initialised for PPP use.
2017-05-31 15:02:11 +03:00
Kevin Bracey ae7fd61d65 RAM optimizations
Trying to save RAM wherever possible for Ublox C027 platform
2017-05-31 15:02:11 +03:00
Kevin Bracey f37f265ed5 Add more LWIP JSON configuration, including PPP
Add configuration to control Ethernet, PPP and TCP support.

Replaces LWIP_TRANSPORT_ETHERNET/PPP defines formerly used by targets.

Ethernet and PPP can be enabled simultaneously.

DHCPv4 is now only enabled if IPv4 and Ethernet are both enabled - we
assume PPP uses IPCP for configuration.

PPP configuration adjusted to cope with LWIP 2.0 changes, and
optimised for RAM a little.
2017-05-31 15:02:11 +03:00
Kevin Bracey d0820d1ed3 Cope with different LWIP configurations 2017-05-31 15:02:11 +03:00
Kevin Bracey 7f136d5a35 PPP Interface for LWIP using FileHandle stream
This is a glue layer between LWIP PPP implementation and a device type FileHandle
stream. This enables an external interface which has a FileHandle, utilize LWIP network
stack via PPP, e.g., Cellular device, WiFi chips etc.
Its totally transparent to external device. Only thing this layer is interested in, is a
FileHandle. Similar is true for for the external device, it just hands over its stream to this
PPP layer and rest of the magic is done by this layer.
2017-05-31 15:02:11 +03:00
Hasnain Virk ea117e5a1a Memory Optimizations and simplifications in ATParser
ATParser had been using std <vector> which had been pulling along a lot
of standard C++ stuff. We have an alternative implementation whcih achieves
a similar effect but without using <vector>. this saves a bunch of valuable
RAM resource.

We have also simplified the overall system by introducing proper CR and LF
rather than \r\n type of delimiters. This newline simplification is borrowed
from retarget.cpp.
2017-05-31 15:02:11 +03:00
Hasnain Virk 4a04c9ce5d Extending ATParser to use FileHandle
Existing ATParser is extended to use FileHandle. This essentially detaches
ATParser from previous tight binding with various implementations of serial
interfaces with buffering.
Now the ATParser uses only abstract FileHandle and doesn't really care about
the underlying implementation. Underneath, it could be a USB device type FileHandle
or a Serial device type FileHandle etc.
Some simplification steps were taken as the code provided opportunities to simplify
and optimize.
2017-05-31 15:02:11 +03:00
Hasnain Virk 2790d44862 Introducing a BufferedSerial
BufferedSerial is a FileHandle and using SerialBase.
It keeps the SerialBase private however lets the user extend FileHandle
by keeping it public.

It is using CircularBuffer class for having circular buffers.

There are some minor amendments in CircularBuffer too.

Adding an entry for tx/rx buffer sizes in platform/mbed_lib.json.
Default size is 256 bytes.

For RTOS read(), write() calls yield for other threads to carry on with their stuff.
For non-RTOS blovking read or write would mean a loop where 100 percent resources are
consumed by this loop. Need to get a better implementation in. Currently no mechanism to
wake the mcu up after WFE.
2017-05-31 15:02:11 +03:00
Hasnain Virk 09ae609d56 Stream class should use mbed::fdopen() to attach a stream
mbed::fdopen() is provided in mbed_retarget.cpp which will attach a stream to the
given FileHandle. Removing mbed_set_unbuffered_stream() from stream class as it
is defined in mbed_retarget.cpp. Stream class should not decide whether it wants
to detach buffers from c library or not. mbed::fdopen() will do that based upon
isatty() call. So if a FileHandle is not a tty, i.e., is not a device type, c library
buffering will not be turned off. For device type FileHandles, c library buffering
is turned off.
2017-05-31 15:02:11 +03:00
Hasnain Virk b2408d8a16 Extending FileHandle & introducing mbed_poll
This has been an attempt to extend existing FileHandle to behave like POSIX
file descriptor for input/output resources/devices too.
This will now provide an abstract indicator/handle any arbitrary file or device
type resource. May be in future, sockets too.

In order to correctly detect availability of read/write a FileHandle, we needed
a select or poll mechanisms. We opted for poll as POSIX defines in
http://pubs.opengroup.org/onlinepubs/009695399/functions/poll.html Currently,
mbed::poll() just spins and scans filehandles looking for any events we are
interested in. In future, his spinning behaviour will be replaced with
condition variables.

In retarget.cpp we have introduced an mbed::fdopen() function which is
equivalent to C fdopen(). It attaches a std stream to our FileHandle stream.
newlib-nano somehow does not seem to call isatty() so retarget doesn't work for
device type file handles. We handle this by checking ourselves in
mbed::fdopen() if we wish to attach our stream to std stream.  We also turn off
buffering by C library as our stuff will be buffered already.

sigio() is also provided, matching the API of the Socket class, with a view to
future unification. As well as unblocking poll(), _poll_change calls the user
sigio callback if an event happens, i.e., when FileHandle becomes
readable/writable.
2017-05-31 15:02:11 +03:00
Kevin Bracey fb7cbdf356 Tighten mbed_retarget.cpp error handling
* Don't set errno when calls are successful (will slightly alleviate the problem
  of errno not being thread-safe yet).
* Transfer errors returned from size() and seek() into errno.
* Fix isatty() - could never return 1 from a FileHandle.
* Use more appropriate errors than EBADF in some places (eg ENOENT for non-existant path).
2017-05-31 15:02:11 +03:00
Kevin Bracey 533910cb87 Correct return type of FileHandle::size()
File size should be off_t, not size_t.
2017-05-31 15:02:11 +03:00
Martin Kojtal 88c398b52a Merge pull request #4377 from theotherjimmy/disable-cortex-A
Disable Cortex-A in tooling for better error messages
2017-05-31 07:50:21 +01:00
Sam Grove e65bb8d1a2 spi: Added default spi_master_block_write implementation to stm targets
There is an easy default implementation of spi_master_block_write that
just calls spi_master_write in a loop, so the default implementation
of spi_master_block_write has been added to all targets.
2017-05-30 23:11:24 -05:00
Jimmy Brisson f5859b308b Disable Cortex-A in tooling to provide better error messages
Disable Cortex-A in compile supported matrix
Disable Cortex-A in export supported matrix
2017-05-30 14:32:06 -05:00
Sam Grove f438251aa3 Merge pull request #3936 from geky/bd-mbr
bd: Add MBR block device for standard storage partitioning
2017-05-30 13:04:50 -05:00
Bartosz Szatkowski 39a1b39ce1 Bump number of ARMC mutexes to fix PAL test failure 2017-05-30 18:55:56 +01:00
Yuguo Zou f03509c6cb Add up OS_MUTEX_NUM for ARMCC compiler
CI shield test (SPI test) may need 7 mutexes
2017-05-30 18:55:56 +01:00
Bartek Szatkowski 80cb65e094 Add more verbose RTOS error messages 2017-05-30 18:55:56 +01:00
Bartek Szatkowski a8229b5351 Make sure all RTOS attribute structures are 0-ed before use 2017-05-30 18:55:56 +01:00
Bartek Szatkowski 85cc9c8381 Remove deprecated RTX4 config options 2017-05-30 18:55:55 +01:00
Bartek Szatkowski 0064df1ce6 Add name parameter for C++ mutex wrapper 2017-05-30 18:55:55 +01:00
Bartek Szatkowski e66f9ee818 Fix IAR coding style and thread/mutex namingin mbed_boot.c 2017-05-30 18:55:55 +01:00
Bartek Szatkowski b01f13d1a0 Make sure all system threads and mutexes have clear names 2017-05-30 18:55:55 +01:00
Bartek Szatkowski 05548e786d Rename directories rtx->rtx4 rtx2->rtx5 2017-05-30 18:55:55 +01:00
Bartek Szatkowski 535ee8ba25 Make stack sizes configurable by the app
Application can overwrite stack sizes by defining main-stack-size and
thread-stack-size in mbed_app.json
2017-05-30 18:55:55 +01:00
andreas.larsson abcae6f01e Updated driver binaries for feature_cmsis5 as v2.0 rc1 2017-05-30 18:55:55 +01:00
Bartek Szatkowski f194ea7be9 Remove redefinitions of register macros from target code 2017-05-30 18:55:53 +01:00
Jaeden Amero 0016bd4639 uVisor: Re-import RTX5-capable uVisor
Use a newer version of uVisor that doesn't change the box main thread
function type. Previously, we required all box main thread definitions
to change from taking a `const void *` to a `void *` when moving to
RTX5. We now are backwards compatibile.
2017-05-30 18:55:53 +01:00
Jaeden Amero 6be9e47a07 uVisor: Import RTX5-capable uVisor
Imported from 20170407_v7-M tag, commit e33f2739e961 "Make function in
transition macro match target".
2017-05-30 18:55:53 +01:00
Bartek Szatkowski b793a3fb89 Update codebase for CMSIS5/RTX5
Update all of mbed-os to use RTX5.
2017-05-30 18:55:52 +01:00
Bartek Szatkowski b97ffe8fdc CMSIS5: Replace target defined NVIC_Set/GetVector with CMSIS implementation 2017-05-30 18:55:51 +01:00
Bartek Szatkowski 7b022f8785 Modify CMSIS 5 so it is suitable for mbed-os
Make changes to the files taken from RTX5/CMSIS5 so they work
with mbed-os and uvisor.
2017-05-30 18:53:38 +01:00
Jaeden Amero 7ae2e6e9ec RTX5: uVisor: Use OsEventObserver 2017-05-30 18:53:38 +01:00
Jaeden Amero 24c60f6cc7 RTX5: uVisor: Extend thread control block with context
OsEventObserver objects expect a context to be maintained per thread on
their behalf. Add this context to the thread control block and extend
the thread creation functions with the ability to supply a context.
2017-05-30 18:53:38 +01:00
Jaeden Amero 756e0cae99 RTX5: uVisor: Add OsEventObserver
Add the OsEventObserver mechanism. A client interested in receiving
notifications on certain OS events can register to receive notifications
with osRegisterForOsEvents. This is useful for clients like the secure
memory allocator, which observes thread switching events in order to
swap in and out different memory allocator objects.
2017-05-30 18:53:38 +01:00
Jaeden Amero 25021f271a RTX5: uVisor: Defer to uVisor for SVCall priority
Only set the SVCall priority if uVisor is not present. If uVisor is
present, keep using whatever priorities it has already set up.
2017-05-30 18:53:37 +01:00