Commit Graph

1564 Commits

Author SHA1 Message Date
Benoît Thébaudeau
efb4b858e2 cc2538: Define the flash memory organization
Define the flash memory page and word sizes. These definitions are
grouped with the flash lock bit page and CCA definitions, so flash-cca.h
is renamed to flash.h.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau.dev@gmail.com>
2015-11-19 01:18:33 +01:00
Benoît Thébaudeau
790c253d6d cc2538: Define and use device features
Define the available CC2538 devices and their features, and use them to
define the linker script memory regions. The .nrdata output section is
now always defined in order to trigger an error if it is used but no
memory is available for it. The CC2538 device used by Contiki is made a
configuration option, the CC2538SF53 device being the default.

This makes more sense than defining the flash memory address and size as
configuration options like previously, all the more not all values are
possible and all the features are linked by each device.

This change also makes it possible to:
 - use the correct SRAM parameters for the CC2538NF11,
 - know at build time if the AES, SHA, ECC and RSA hardware features are
   available on the selected CC2538 device.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau.dev@gmail.com>
2015-11-19 01:18:33 +01:00
Tommy Sparber
938a425949 Cleanup trailing spaces and convert tabs to spaces
This commit removes trailing spaces and converts
tabs to spaces in all files affected by fix-doxygen PR.
2015-11-18 11:09:43 +11:00
Tommy Sparber
938d17576b doxygen: Fix many warnings
This commit fixes nearly all of the reported doxygen warnings.

I tried to not clutter the log with removed trailing spaces.
Removed whitespace and converted tab/spaces for all files affected by this commit
are in a separate branch.
2015-11-18 11:07:58 +11:00
suman_panchal
8d139222f6 Wismote : Direct memory access using UART. 2015-11-17 20:26:43 +05:30
George Oikonomou
571cf9364a Improve CC13xx/CC26xx LPM logic
This commit applies a number of improvements to the logic used when trying to drop to a CC13xx/CC26xx low-power mode:

* We identify whether there are any pending etimers by using `etimer_pending()` instead of `etimer_next_expiration_time()`. This subsequently allows us to also identify whether an etimer is set to fire at time 0.
* We run a larger portion of the code with the global interrupt disabled. This prevents a number of messy conditions that can occur if an interrupt fires after we have started the low-power sequence.
* We check whether there are pending events earlier in the sequence.
* We make sure to schedule a next wakeup event even when an LPM module prohibits deep sleep and forces sleep instead.

This fixes some of the issues discussed in #1236
2015-11-14 02:48:46 +01:00
George Oikonomou
08fddb6598 Always set a valid time for the next AON RTC CH1 compare event
The AON RTC CH1 event handler aims to schedule the next compare event on the next 512 RTC counter boundary. However, the current calculation of "now" takes place too early within the interrupt handler. In some cases, this results in the next event getting scheduled too soon in the future or on some extreme cases even in the past.

AON RTC compare events cannot happen within 2 SCLK_LF cycles after a clearance (4 RTC ticks in the 16.16 format). Thus, if the next 512 boundary is too soon (5 ticks for margin), we skip it altogether. When this happens, etimers that would have expired on the skipped tick will expire 1 tick later instead. Skipping a tick has no negative impact on our s/w clock counter, since this is always derived directly from the hardware counter.
2015-11-14 02:44:04 +01:00
George Oikonomou
b4393e861f Only set CC13xx prop mode channel if a new channel is being requested 2015-11-14 01:38:24 +01:00
George Oikonomou
320a753666 Turn CC13xx RF back off after prop TX if it was off to start with 2015-11-14 01:38:24 +01:00
George Oikonomou
e0e20aa3fd Turn off ENERGEST_TYPE_LISTEN in CC13xx prop mode off() 2015-11-14 01:38:24 +01:00
Marco Grella
41f9ca08e2 Merge with updated master. 2015-11-11 13:42:35 +01:00
Simon Duquennoy
fbd78a7e3b Merge pull request #1293 from simonduq/pr/fix-warnings
Fix a number of compiler warnings and enable -Werror in Travis
2015-11-10 08:49:11 +01:00
George Oikonomou
a63efe947f Merge pull request #1233 from adamdunkels/pr/26xx-13xx-fixes
CC26xx/CC13xx fixes
2015-11-09 08:33:58 +00:00
George Oikonomou
3aa4547327 Merge pull request #1257 from bkozak-scanimetrics/cc26xx_fully_turnoff_radio
CC26xx - fully shutdown the rf-core & abort rx op
2015-11-04 15:45:05 +00:00
Antonio Lignan
6037e269a8 Merge pull request #1336 from sumanpanchal/z1-uart0-dma
Zolertia Z1: Direct memory access using UART.
2015-11-02 08:47:08 +01:00
George Oikonomou
54648591ee Explicitly send CMD_ABORT in prop mode before powering down 2015-11-01 22:53:35 +00:00
George Oikonomou
f401c7cc60 Save new TX power setting even if the RFC is powered off.
The current logic attempts to send `CMD_SET_TX_POWER` before saving the new power setting. If `CMD_SET_TX_POWER` fails the power setting will not get saved. As a result, when the RFC is powered off, all attempts to change TX power will fail.

This commit changes this logic to always save the new TX setting as requested by the user. If the RFC is powered up, we apply it immediately. If it is powered down, the new setting will automatically be applied next time we send `CMD_RADIO_SETUP`.

Fixes #1340
2015-11-01 20:56:52 +00:00
George Oikonomou
1ee40ef021 Fix the logic that detects whether a command is a Radio OP 2015-11-01 20:48:28 +00:00
George Oikonomou
946b72a58d Mask CMDSTA when waiting for a command to get accepted 2015-11-01 20:46:46 +00:00
Oliver Schmidt
9962d0720a Merge pull request #1347 from oliverschmidt/master
Removed CC_FASTCALL.
2015-11-01 19:36:07 +01:00
Oliver Schmidt
1639b712bb Removed CC_FASTCALL.
CC_FASTCALL was introduced many years ago for the cc65 tool chain. It was never used for another tool chain. With a798b1d648 the cc65 tool chain doesn't need CC_FASTCALL anymore.
2015-11-01 18:10:17 +01:00
Oliver Schmidt
692fbf5422 Merge pull request #1343 from oliverschmidt/master
Added 80 column IRC client / web browser for the C64.
2015-10-31 15:18:10 +01:00
suman_panchal
35cc40563e Zolertia Z1: Direct memory access using UART. 2015-10-31 11:45:13 +05:30
Oliver Schmidt
fb5d0b7ef0 Made 80 column display a cc65 application attribute.
So far 80 column display was an attribute of a cc65 platform. Now each cc65 application can ask for 80 column display by defining WITH_80COL. Of course this is ignored by platforms incapable of 80 column display.

I see three types of application:

* Applications not benefitting from 80 column at all and in fact looking better with 40 column display. These are now using 40 column display. Examples: ethconfig, ipconfig

* Applications taking advantage of 80 column display if it is available without drawbacks. These stay as they were. Examples: Telnet server, web server, wget

* Applications needing 80 column display so urgently that it is likely desirable even if the display becomes harder to read. These come now in both flavors allowing the user to choose. Examples: IRC, web browser

Note: This change doesn't actually introduce any 80 column display with drawbacks. This if left to a subsequent change.
2015-10-30 12:42:58 +01:00
George Oikonomou
3e0f37090c Merge pull request #1324 from msloth/master
Remove LED fade in lpm.c
2015-10-29 11:36:39 +00:00
Marcus Linderoth
1906bff17c allow lpm_shutdown without a wake-up pin set 2015-10-28 11:06:26 +01:00
Marcus Linderoth
ea7a5d1c63 Remove fade away of LED when going into shutdown mode; it consumes power and is application-layer stuff. 2015-10-28 10:51:37 +01:00
George Oikonomou
55b41863d5 Remove redundant function calls in CC26xx RFC code
As discussed in #1279, the current CC13xx/CC26xx rf-core code makes some unnecessary power domain-related reads. This commit removes them.

Closes #1279
2015-10-24 20:54:33 +01:00
George Oikonomou
8636a28248 Clear interrupt flags selectively
As discussed in #1294, every time a CC13xx/CC26xx RF interrupt fires, we clear all interrupt flags unconditionally. This may result in missed events. This patch fixes this bug by clearing only the flag that triggered the interrupt in the first place.

Fixes #1294
2015-10-24 20:51:34 +01:00
Benoît Thébaudeau
bf41de1be5 Merge pull request #1078 from drandreas/cc2538-crypto
cc2538: Add PKA drivers, ECC algorithms and examples
2015-10-21 11:24:35 +02:00
Simon Duquennoy
2daa3d7377 Merge pull request #1269 from tadodotcom/tmp-uip-fallback-iface
More flexibility for the fallback interface
2015-10-20 11:33:14 +02:00
Simon Duquennoy
ca8fe618e7 cc2420 and cc2430: add comment on why we discard tbiv 2015-10-20 10:11:49 +02:00
Simon Duquennoy
f49b161795 Remove commented-out code 2015-10-20 10:11:47 +02:00
Adam Dunkels
d48cf89e9b Fixed compiler warnings for the AVR platforms 2015-10-20 10:11:42 +02:00
George Oikonomou
2773a37857 Update CCxxwares to our warning-free version 2015-10-20 10:11:41 +02:00
Adam Dunkels
24b1eb4031 The -pedantic and -stdc flags trigger a few too many warnings 2015-10-20 10:11:35 +02:00
Adam Dunkels
4cab313b8c Fix compiler warnings 2015-10-20 10:11:34 +02:00
Adam Dunkels
06dfce6d46 The -pedantic and -stdc flags trigger a few too many warnings 2015-10-20 10:11:33 +02:00
Adam Dunkels
12a185f394 Added the WERROR=1 flag to the CC2538 and CC26xx CPUs 2015-10-20 10:11:23 +02:00
Simon Duquennoy
a2b1934f03 mbxxx: added missing undefs 2015-10-20 09:37:28 +02:00
Simon Duquennoy
ccfdf80ff2 Removed mbxxx warning messages on the current ld file in use 2015-10-20 09:37:27 +02:00
Simon Duquennoy
0340567af8 tapdev6.c: do not ignore return value of system() 2015-10-20 09:37:18 +02:00
Simon Duquennoy
2c91ab6fad linuxradio-drv.c: added missing include 2015-10-20 09:37:17 +02:00
Simon Duquennoy
01984f07c2 cc2420 and cc2430: removed compiler warning on unused tbiv 2015-10-20 09:37:16 +02:00
Simon Duquennoy
560d6af97b msp430x: do not compile mtarch, which currently assumes 16-bit function pointers 2015-10-20 09:37:15 +02:00
AntiCat
d631270af4 cc2538: Add PKA drivers, ECC algorithms and examples 2015-10-18 20:14:17 +02:00
Marco Grella
fc65757114 License headers and code style fixes. 2015-10-09 19:40:39 +02:00
Vladimir Pouzanov
2d75926989 Fixed linuxradio-drv guard macro name 2015-09-29 12:29:08 +01:00
Simon Duquennoy
6d4f50e53a Merge pull request #1282 from farcaller/nativenet
Basic NETSTACK_CONF_RADIO based on kernel 802.15.4
2015-09-28 19:30:38 +02:00
Mariano Alvira
ff7129dc53 Merge pull request #881 from drugo72/avr-fixes
Avr fixes
2015-09-28 09:41:21 -05:00
Vladimir Pouzanov
bd1b7d9814 Fixed linuxradio compilation issues with native and minimal-net 2015-09-28 12:48:01 +01:00
Vladimir Pouzanov
4c8618e6ba Extracted linuxradio device name to contiki-conf 2015-09-28 12:48:00 +01:00
Vladimir Pouzanov
52c90519d9 Fixed missing #includes and restricted linuxradiodrv compilation to linux 2015-09-28 12:48:00 +01:00
Vladimir Pouzanov
43a327df5a Cleaned up and re-formatted source of linuxradiodrv 2015-09-28 12:47:12 +01:00
Vladimir Pouzanov
113d9761f7 Better failure handling in linuxradiodrv 2015-09-28 12:47:12 +01:00
Vladimir Pouzanov
5fed4a3f1c Using MAX_PACKET_SIZE where appropriate in linuxradiodrv 2015-09-28 12:47:12 +01:00
Vladimir Pouzanov
beef4f5d5d Added better error handling to linuxradiodrv transmit() 2015-09-28 12:47:12 +01:00
Vladimir Pouzanov
8a068f8512 Cleaned up linuxradiodrv code 2015-09-28 12:47:12 +01:00
Vladimir Pouzanov
867368b929 Basic NETSTACK_CONF_RADIO based on kernel 802.15.4 2015-09-28 12:47:11 +01:00
Laurent Deru
a58fa16cc6 Merge pull request #1252 from tadodotcom/cpu-native-ldflags-fix
Don't override LDFLAGS on Linux for the native CPU
2015-09-23 09:44:22 +02:00
Cristiano De Alti
e51783a1d5 Most of the rules in the avr makefile are not used anymore
and should be removed. In the meantime we change those needed
to upload flash and eeprom to depend on the default contiki rule
to make the .$(TARGET) executable."
2015-09-22 23:32:17 +02:00
Billy Kozak
8e5f0bc36a Defining gcc specific macros in seperate header 2015-09-22 14:17:10 -06:00
Víctor Ariño
561e70b18e Updated current fallback_interface(s) to return int. 2015-09-22 12:53:04 +02:00
Billy Kozak
324d03b53c CC26xx - fully shutdown the rf-core & abort rx op
Prior to this patch, the ieee radio driver did not explicitly abort
the rx operation or power down the analog components of the radio
prior to shutting down the rf-core.

The result of this was that the rf-core continued to use a lot of
power even while "off".

This patch fixes this problem.
2015-09-14 13:18:01 -06:00
Mariano Alvira
552408b241 Merge pull request #685 from SmallLars/mc1322x
Added mc1322x functions: clock_set_seconds, soft_reset, nvm_verify
2015-09-13 12:35:53 -05:00
Mariano Alvira
1ddcdf4886 Merge pull request #839 from gebart/rf230-isr
rf230bb: Handle all IRQ flags in one ISR call. (Q: Is the current ISR valid?)
2015-09-13 12:06:36 -05:00
Mariano Alvira
050275293a Merge pull request #922 from atiselsts/rs230bb_fixes
Atmel 230bb: always increase the rx frame ringbuffer cursor in rf230_read()
2015-09-13 11:58:16 -05:00
Marco Grella
87970a88a4 Comments and documentation fixes. 2015-09-10 14:28:08 +02:00
Valentin Sawadski
b729dc8985 Don't override LDFLAGS on Linux for the native CPU 2015-09-10 11:13:22 +02:00
Nicolas Tsiftes
8a7e2e5892 Merge pull request #1240 from atiselsts/energest_accuracy
Improve energest accuracy
2015-09-07 15:35:35 +02:00
George Oikonomou
4ce6d215e8 Use volatile access for CMD_IEEE_TX 2015-09-04 17:59:25 +01:00
George Oikonomou
dd640cd229 Merge pull request #1195 from bkozak-scanimetrics/cc26xx_improve_watchdog
CC26xx - various fixes and improvements for the watchdog module
2015-09-04 17:20:50 +01:00
Marco Grella
17aafb9daa Align to current master 2015-09-04 17:01:04 +02:00
Atis Elsts
2f79810b58 Use ENERGEST_SWITCH to switch between different power modes to improve energest accuracy. 2015-09-04 11:46:00 +02:00
Billy Kozak
b71353181d CC26xx - enable correct IRQ in rf_core_cmd_done_en
Fix for #1229

rf_core_cmd_done_en() was enabling the wrong irq for detecting the
completion of foreground operations. This was causing cc26xx devices
to not wake-up on time when calling lpm_sleep() from transmit().
2015-09-02 12:37:33 -06:00
Adam Dunkels
8d2dafbe30 No need to set the same channel again 2015-09-02 12:18:27 +02:00
Adam Dunkels
27e373492d Turn off energest listen in off() 2015-09-02 12:10:44 +02:00
Adam Dunkels
f1c4a5ee08 Turn off radio again after transmitting 2015-09-02 12:10:07 +02:00
Adam Dunkels
8bcde2e40f Tickless bugfixes:
* The clock interrupt must be scheduled relative to the last interrupt, not relative to the current time (which may have progressed significantly)
* clock_time() must increase continuously, so that code that may be spinning around clock_time() will make progress, not only after each interrupt
2015-09-02 12:05:47 +02:00
Billy Kozak
fde3202a3f cc26xx - added optional locking mode for WDT
Added a mode, configurable by the CONTIKI_WATCHDOG_CONF_LOCK_BETWEEN_USE
macro, which locks the WDT register between uses so as to prevent
any accidental modifications
2015-08-31 09:12:16 -06:00
Billy Kozak
22d8a8dd56 cc26xx - implemented watchdog_stop
Also modified watchdog_start so that if we stop and start again the
watchdog timeout will be reset (by calling watchdog_periodic).
2015-08-31 09:12:16 -06:00
Billy Kozak
dfdb0a6487 cc26xx - fixed WDT reloading
According to the TRM, the WDT does not produce a reset until it
expires twice. After expiring the WDT will set the INT flag if it
is unset, and reset the MCU if INT is already set.

Before this patch, watchdog_periodic() only un-sets the INT flag. This
means that the behaviour of watchdog_periodic is underministic in that
the value of the countdown timer will be different depending on
when the function was called.

This patch fixes this behaviour by also reloading the timout value.
2015-08-31 09:10:26 -06:00
Billy Kozak
85555cf6cf Made cc26xx WDT reload configurable with macro
CONTIKI_WATCHDOG_TIMER_TOP sets the reload value of the WDT
2015-08-31 09:10:26 -06:00
Atis Elsts
854494109d Atmel 230bb: always increase the rx frame ringbuffer cursor in rf230_read().
Avoids packet reordering in cases when RF230_CONF_RX_BUFFERS > 1.
2015-08-31 09:56:56 +02:00
Antonio Lignan
37470bbc1b Merge pull request #1055 from sumanpanchal/msp430x-elfloader
Added MSP430x ELFLOADER support to load image with large memory model.
2015-08-27 21:19:27 +02:00
Adam Dunkels
bfb29d2f11 Merge pull request #1116 from cetic/pr-uip-clear-buffer
Add uip_clear_buf() macro and replace all instances of uip_len = 0
2015-08-27 10:27:08 +02:00
Jonas Olsson
01e36532c2 Add support for the CC13xx CPU
This commit:

* Moves all cpu files from cpu/cc26xx to cpu/cc26xx-cc13xx
* Bumps the CC26xxware submodule to the latest TI release
* Adds CC13xxware as a submodule
* Adds support for sub-ghz mode / IEEE 802.15.4g
* Splits the driver into multiple files for clarity. We now have the following structure:
  * A common module that handles access to the RF core, interrupts etc
  * A module that takes care of BLE functionality
  * A netstack radio driver for IEEE mode (2.4GHz)
  * A netstack radio driver for PROP mode (sub-ghz - multiple bands)

This commit also adds tick suppression functionality, applicable to all chips of the CC26xx and CC13xx families. Instead waking up on every clock tick simply to increment our software counter, we now only wake up just in time to service the next scheduled etimer. ContikiMAC-triggered wakeups are unaffected.

Laslty, this commit also applies a number of minor changes:
* Addition of missing includes
* Removal of stub functions
* Removal of a woraround for a CC26xxware bug that has now been fixed
2015-08-23 19:54:42 +01:00
Billy Kozak
feec05cdf2 CC26xx - fix misuse of len variable in read_frame
read_frame was misuing the packet length in the following ways:
- returning non-zero even if buf_len is too short for the packet
- truncating the length to buf_len if len is too long then using the
  truncated (i.e. wrong) length to index into the buffer
- memcpying too many bytes (used buf_len instead of real length)

This commit fixes all of this and adds some code to report
on packet length errors (to match with cc2538 driver).
2015-08-14 12:44:55 -06:00
Billy Kozak
ceb24f656e Improved style of read_frame
- moved variable declaration to top of function in accordance with the
  Contiki style guide
- made function flatter, reduced nesting to improve readability
2015-08-14 12:43:34 -06:00
Billy Kozak
547f8e7aaa Fixed race condition with rf cpu in read_frame
Fixed a race condition that could occur in read_frame because the
dataEntry is set to PENDING before we are finished reading from it.
2015-08-14 12:42:10 -06:00
Fabien Castanier
49b24e6f53 Modified the parameter name of clock_wait function 2015-08-05 13:59:08 +02:00
Oliver Schmidt
5f6a672e23 Merge pull request #1184 from oliverschmidt/master
Adjusted retro target clock to "new" DNS resolver.
2015-08-04 15:39:18 +02:00
Oliver Schmidt
ca2552461e Adjusted retro target clock to "new" DNS resolver.
The DNS resolver requires 1/4 sec clock resolution. The retro targets had a 1/2 sec clock resolution (optimized for the 1/2 sec TCP timer) resulting in DNS resolver timeouts being 0. Therefore the retro target clock resolution is now increased to 1/4 sec.
2015-08-04 13:48:08 +02:00
George Oikonomou
195ada6668 Merge pull request #1107 from phoenix-frozen/cc2530-rf-const-warning
fix minor warning in cc2530-rf driver
2015-08-03 10:28:43 +01:00
Marco Grella
62c33260bd Modified structure to use a sub-module for platform APIs 2015-07-31 17:11:27 +02:00
Marco Grella
b61152bfa1 I/O libraries 2015-07-24 19:54:05 +02:00
Marco Grella
86f35536a4 Added new stm32nucleo-spirit1 platform 2015-07-24 16:30:10 +02:00
Billy Kozak
35919f6836 CC26xx - Enable RX_NOK on DEBUG builds
Enabled the RX_NOK interrupt, if DEBUG or CC26XX_DEBUG_CRC are set
true, for the purpose of monitoring packets with bad CRC
2015-07-20 10:47:06 -06:00
Billy Kozak
99d74e949f CC26xx autoflush bad crc packets
Setting bAutoFlushCrc=1 so that the radio co-processor will
automatically drop packets with bad crc.
2015-07-16 08:58:24 -06:00
Oliver Schmidt
ca50a2c6df Merge pull request #1157 from oliverschmidt/master
Allow fixup to be repeated.
2015-07-09 23:31:00 +02:00
Oliver Schmidt
f348f4feb2 Allow fixup to be repeated.
There are scenarios in which it is beneficial to search for an Etherne chip at several i/o locations. To do so the chip initialization is performed at several i/o locations until it succeeds. In order to allow for that operation model the i/o location fixup needs to be repeatable.

Note: This won't work with the RR-Net because the fixup bits overlap with the chip i/o bits.
2015-07-09 22:43:16 +02:00
Billy Kozak
b7565f3930 turned on correlator in radio packet filter
Enabling this option seems to greatly improve transciever performance with
Contikimac. This seems to happen because Contikimac CCAs are much less likely
to detect false positives (thus screwing up the CCA sequence).
2015-07-06 16:28:40 -06:00
Antonio Lignan
8cc0a12a9f Merge pull request #1097 from bthebaudeau/cc2538-examples-fix-warnings
cc2538: examples: Fix build warnings
2015-06-24 11:39:24 +02:00
Oliver Schmidt
08be27b602 Merge pull request #1139 from oliverschmidt/master
Several minor retrocomputing configuration changes.
2015-06-22 07:59:25 +02:00
Oliver Schmidt
fc9d38caba Reduced default for number of connections.
Save some memory by reducing the the default for number of connections from 10 to 2.
2015-06-21 20:58:51 +02:00
Oliver Schmidt
ac3b8b0955 Merge pull request #1138 from oliverschmidt/master
Fix DHCP client retries.
2015-06-21 17:42:49 +02:00
Oliver Schmidt
8c346dd762 Removed (dysfunctional) dependency generation from cc65 .co file rule.
The default gcc .co file rule doesn't support dependency generation too.
2015-06-21 16:39:12 +02:00
Oliver Schmidt
b8bece508a Fix DHCP client retries.
In order to have DHCP retries actually work dhcpc_appcall() must be called for PROCESS_EVENT_TIMER too.
2015-06-21 14:25:52 +02:00
George Oikonomou
b4ec0c7c1d Remove doxygen explicit links to non-existing symbols
Parts of the stm32w108 doxygen comments have explicit links to symbols that do not exist anywhere in our source base, let alone be documented. This is likely to be caused by a partial import of manufacturer libraries in the Contiki source tree.

These links were previously not generating warnings in the doxygen log because we were not defining `DOXYGEN_SHOULD_SKIP_THIS` and they were thus being skipped altogether by the doxygen pre-processor. Defining `DOXYGEN_SHOULD_SKIP_THIS` causes those doxygen comments to get processed and to thus generate warnings.

This commit removes explicit links to non-existent symbols and updates `doxyerrors.cnt` accordingly.
2015-06-20 16:10:25 +01:00
Benoît Thébaudeau
2eef189a0a doxygen: Fix some warnings
Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau.dev@gmail.com>
2015-06-20 03:22:31 +02:00
Benoît Thébaudeau
0b1a0d2bd9 Merge pull request #1092 from g-oikonomou/contrib/remote_watchdog_stop
Remove CC2530 and CC2538 dummy watchdog_stop()
2015-06-18 21:56:13 +02:00
Sumankumar Panchal
db4df30366 Added MSP430X ELFLOADER support to load image with large memory model. 2015-06-15 17:53:18 +05:30
Laurent Deru
1784338b2e Add uip_clear_buf() macro and replace all instances of uip_len = 0; with it 2015-06-15 11:10:51 +02:00
Oliver Schmidt
c9edb9006b Merge pull request #1112 from oliverschmidt/master
Various improvements of the HTTP client and web browser.
2015-06-14 16:12:24 +02:00
Justin King-Lacroix
f968e53250 fixed minor warning in cc2530-rf driver 2015-06-10 18:20:04 +01:00
Benoît Thébaudeau
afe5d0403d cc2538: Build without the Contiki target library
The GNU linker ld searches and processes libraries and object files in
the order they are specified. Library files are archive files whose
members are object files. The linker handles an archive file by scanning
through it for members that define symbols that have so far been
referenced but not defined. But an ordinary object file is linked in the
usual fashion.

The C library is implicitly linked after all object files and libraries
specified on the command line.

Because of that, if the C library depends on the Contiki target library,
e.g. for the implementation of system calls, then these dependencies are
not linked, which results in undefined references. Actually, the Contiki
target library also needs the C library, hence a circular dependency
between these libraries, which means that explicitly adding -lc anywhere
on the command line can not help. The only solution in that case is to
pass these libraries to ld between --start-group and --end-group.
Archives grouped in this way are searched repeatedly by the linker until
no new undefined references are created.

This archive grouping option has a significant performance cost for the
linking stage. Moreover, having to use it and to pass -lc explicitly on
the command line is unusual, which is disturbing and more complicated
for users needing the C library to depend on the Contiki target library.
The same would be true for circular dependencies between the Contiki
target library and any other library.

Another issue with the Contiki target library is that it may alter the
apparent behavior of the weak vs. strong symbols, because of the way ld
handles archives, which may make it discard archive object files
containing strong versions of referenced symbols:
 - If a symbol has a weak and a strong version in this library, both
   inside the same object file, then the linker uses the strong
   definition.
 - If a weak symbol in this library has a strong counterpart in an
   object file outside, then the linker uses the strong definition.
 - If a strong symbol in this library is inside an object file
   containing other referenced symbols, and has a weak counterpart
   anywhere, then the linker uses the strong definition.
 - If a strong symbol in this library is the only symbol referenced in
   its object file, and has a weak counterpart in an object file
   outside, then the linker uses the strong definition if this library
   is linked first, and the weak one otherwise.
 - If a strong symbol in this library is the only symbol referenced in
   its object file, and has a weak counterpart in another object file in
   this library, then the linker uses the definition from the first of
   these objects added when creating this archive.
 - If a symbol has a weak and a strong version, one in this library, and
   the other in another library, then the rules are the same as if both
   were in the Contiki target library.

The existence of cases where the linker uses a weak symbol despite the
presence of its strong counterpart in the sources compiled then passed
to the linker is very error-prone, all the more this behavior depends on
the order the object and archive files are passed on the command lines,
which may just result from the order of source files in lists where it
apparently does not matter. Such cases would be needed in the future,
e.g. to define weak default implementations of some system calls that
can be overridden by platform-specific implementations, both ending up
in the Contiki target library. There was already such a case used to
define the UART and USB ISRs as weak aliases of default_handler(),
relying on this implicit unusual behavior to keep default_handler() if
the UART or USB driver was unused, which was dangerous.

Since the Contiki target library was only used as an intermediate file
during the build, the current commit fixes these issues by simply
directly using the object files instead of building an intermediate
archive from them.

The CONTIKI_OBJECTFILES make variable would be incomplete if it were
used as a simple prerequisite in the %.elf rule in Makefile.cc2538,
because other object files are added to it after this rule. That's why
.SECONDEXPANSION is used to defer its expansion. Another solution would
have been to split Makefile.cc2538, with the variable assignments kept
in it, and the rule definitions moved to Makefile.customrules-cc2538,
but this would have required to add Makefile.customrules-<target> files
to all CC2538 platforms, only to include Makefile.customrules-cc2538.
The solution used here is much simpler.

Because the UART and USB ISRs were weak aliases of default_handler(),
this change would imply that these ISRs would always be used by the
linker instead of default_handler(), even if their drivers were
configured as unused with UART_CONF_ENABLE and USB_SERIAL_CONF_ENABLE,
which would be wrong. This commit fixes this issue by removing these
weak aliases and putting either these ISRs or default_handler() in the
vector table, depending on the configuration. Weak aliases are elegant,
but Contiki's build system does not currently allow to automatically
build or not source files depending on the configuration, so keeping
these weak aliases would have required to add #if constructs somewhere
in the source code, which would have broken their elegance and made them
pointless.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau.dev@gmail.com>
2015-06-05 21:55:51 +02:00
Benoît Thébaudeau
0f137e4bdd cc2538: uart: Make uart_isr() static
This function is only supposed to be used by uart.c, so it should be
static.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau.dev@gmail.com>
2015-06-05 21:50:49 +02:00
Benoît Thébaudeau
e8a268cd15 cc2538: aes: Add support for 192- and 256-bit keys
Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau.dev@gmail.com>
2015-06-02 21:41:56 +02:00
Benoît Thébaudeau
801315e819 cc2538: aes: Make it possible to have several keys stored at once
Several keys can be kept at the same time in the key store, and several
keys can be loaded at once. Give access to these features.

The ccm-test example is also improved to better demonstrate the use of
the key store.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau.dev@gmail.com>
2015-06-02 21:41:07 +02:00
Benoît Thébaudeau
b92a5afcc4 cc2538: ccm: Make it possible to use the interrupt
Using the AES interrupt allows the user process not to waste time
polling for the completion of the operation. This time can be used by
the user process to do something else, or to let the system enter PM0.

Since the system is now free to perform various operations during a
crypto operation, a protection of the crypto resource is added, and PM1+
is prohibited in order not to stall crypto operations.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau.dev@gmail.com>
2015-06-02 21:41:07 +02:00
Benoît Thébaudeau
117dc4e5e3 cc2538: Add crypto drivers and examples for AES-CCM and SHA-256
Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau.dev@gmail.com>
2015-06-02 21:41:06 +02:00
Benoît Thébaudeau
66acf74612 cc2538: examples: Fix build warnings
Toolchain used:
arm-none-eabi-gcc (GNU Tools for ARM Embedded Processors) 4.9.3 20150303
(release) [ARM/embedded-4_9-branch revision 221220]

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau.dev@gmail.com>
2015-06-02 01:38:11 +02:00
George Oikonomou
d28eb023ef Remove CC2530 and CC2538 dummy watchdog_stop()
The CC2538 the WDT cannot be stopped once it has been started.
The CC2530/1 WDT can be stopped if it is running in timer mode,
but it cannot be stopped once it has been started in watchdog mode.

Both platforms currently provide "dummy" implementations of `watchdog_stop()`,
one does nothing and the other one basically re-maps `_stop()` to
`_periodic()`.

This was originally done in order to provide implementations for all prototypes
declared in `core/dev/watchdog.h`. In hindsight and as per the discussion
in #1088, this is bad practice since, if the build succeeds, the caller will
expect that the WDT has in fact been stopped, when in reality it has not.

Since the feature (stopping the WDT) is unsupported by the hardware, this pull
removes those dummy implementations. Thus, we will now be able to reliably
detect - at build time - attempts at using this unsupported feature.
2015-06-01 15:24:14 +01:00
Oliver Schmidt
4a6909d16a Remove RDC config from retro definitiions.
After the modularization of the Contiki libraries this isn't necessary anymore.
2015-05-25 13:43:11 +02:00
Benoît Thébaudeau
1cd3c9e7e5 cc2538: Initialize .data/.bss using ROM functions
This is safer because the previous code assumed that the start and end
VMAs of .data and .bss were word-aligned, which is not always the case,
so the initialization code could write data outside these sections. The
ROM functions support any address boundary.

This is faster because the ROM functions are ultra optimized, using
realignment and the LDM/STM instructions, which is much better than the
previous simple loops of single word accesses.

This is smaller because the ROM functions don't require to add any code
to the target device other than simple function calls.

This makes the code simpler and more maintainable because standard
functions are not reimplemented and no assembly is used.

Note that this is also faster and smaller than the corresponding
functions from the standard string library.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau.dev@gmail.com>
2015-05-23 18:50:52 +02:00
Benoît Thébaudeau
609c615303 cc2538: Move the stack out of .bss
The initialization code clearing .bss is allowed to use the stack, so
the stack can not be in .bss, or this code will badly fail if it uses
the stack.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau.dev@gmail.com>
2015-05-23 18:50:52 +02:00
Benoît Thébaudeau
0de729572b cc2538: Word-align .data LMA
In order to be fast, the reset_handler() function uses word accesses to
initialize the .data output section. However, most toolchains do not
automatically force the alignment of an output section LMA to use the
maximum alignment of all its input sections. Because of that, assuming
that .data contains some words, the LMA of the .data output section was
not word-aligned in some cases, resulting in an initialization performed
using slow unaligned word accesses.

This commit forces the alignment of the LMA of the .data output section
with a word boundary in order to always use fast aligned word accesses
to read the .data load area.

Note that this solution is better than using ALIGN_WITH_INPUT, both
because the latter is a new feature incompatible with older toolchains,
and because it could create a big gap between _etext and the LMA of
.data if strongly-aligned data were added to .data, although only a word
alignment is required here.

The same considerations apply to the VMA of .data. However, it is
already automatically word-aligned, both because .data contains words,
and because the end VMA of the previous output section (.socdata) is
word-aligned. Moreover, if the VMA of .data were forcibly word-aligned,
then a filled gap could appear at the beginning of this section if
strongly-aligned data were added to it, thus wasting flash memory.
Consequently, it's better not to change anything for the VMA of .data,
all the more it's very unlikely that it does not contain any word and
that the end VMA of .socdata becomes non-word-aligned, and this would
only result in a slower initialization.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau.dev@gmail.com>
2015-05-23 18:12:54 +02:00
Benoît Thébaudeau
0d260f61a0 cc2538: Fix .data LMA/VMA mismatch with some toolchains
Some toolchains, like Sourcery CodeBench Lite 2013.05-23 arm-none-eabi
(http://sourcery.mentor.com/public/gnu_toolchain/arm-none-eabi/)
automatically force the alignment of an output section LMA to use the
maximum alignment of all its input sections. This toolchain uses GNU
binutils 2.23, and this automatic behavior is the same as the manual
behavior of the ALIGN_WITH_INPUT feature of GNU binutils 2.24+.

This behavior is not an issue per se, but it creates a gap between
_etext and the LMA of the .data output section if _etext does not have
the same alignment, while reset_handler() initialized this section by
copying the data from _etext to its VMA, hence an offset in the
addresses of loaded data, and missing data.

This commit fixes this issue by making reset_handler() directly use the
LMA of the .data section using LOADADDR(.data), rather than assuming
that _etext is this LMA.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau.dev@gmail.com>
2015-05-23 18:12:53 +02:00
Antonio Lignan
2cee62eb33 Merge pull request #1074 from g-oikonomou/cc26xx/contrib/new-cc26xxware
Update to latest CC26xxware and add it as a submodule
2015-05-21 10:01:00 +02:00
Ulf Knoblich
d8efa8428c cc2538: Allow for configuration of processor speed 2015-05-19 18:55:55 +02:00
Adam Dunkels
730bda2001 Merge pull request #883 from cmorty/pull/global-macros
Move MAX, MIN and ABS to contiki-macros
2015-05-18 21:33:00 +02:00
Ulf Knoblich
a388a1bcd7 CC2538: added support for SSI1 2015-05-18 10:02:55 +02:00
Moritz 'Morty' Strübe
0dab6926b3 Move MAX, MIN and ABS to sys/cc.h 2015-05-18 08:53:17 +02:00
George Oikonomou
5d20e76346 Adjust the build system to use CC26xxware as a sub-module 2015-05-17 15:01:01 +01:00
George Oikonomou
40e82395c4 Pull CC26xxware as a submodule 2015-05-17 15:01:01 +01:00
George Oikonomou
b4067560ba Remove references to obsolete peripheral clock scaling functions 2015-05-17 15:01:01 +01:00
George Oikonomou
ab4249a709 Adjust retention calls
* Rename VIMS-related calls
* Remove obsolete ones
2015-05-17 15:01:01 +01:00
George Oikonomou
b38d32b281 Rename AON WUC power status macros 2015-05-17 15:01:01 +01:00
George Oikonomou
8673bbdd55 Update linker script to accommodate for larger CCFG size 2015-05-17 15:01:00 +01:00
George Oikonomou
09a8c54eb1 Update CC26xxware glue macros
* Remove references to removed functions
* Add macros to new functions
* Rename macros to renamed functions
* Add macros for the HAPI
2015-05-17 14:09:52 +01:00
George Oikonomou
5f4154a0e3 Adjust AON BatMon usage 2015-05-17 14:09:51 +01:00
Benoît Thébaudeau
25532e8abf Merge pull request #754 from wwhuang/master
[CC2538] Fix SPI_FLUSH
2015-05-16 20:55:30 +02:00
Antonio Lignan
e8b1a57ac6 Merge pull request #809 from cmorty/pull/msp430_gstabs
[MSP430] Add gstabs debug information (dwarf is broken)
2015-05-16 11:01:47 +02:00
Antonio Lignan
32afadea77 Merge pull request #1047 from g-oikonomou/cc26xx/contrib/lpm
CC26xx Ultra Low Power Operation
2015-05-16 10:27:22 +02:00
George Oikonomou
1cf37e0c1a Tidy-up code style 2015-05-15 23:36:54 +01:00
George Oikonomou
78d04f812b Fix typo in macro 2015-05-15 09:21:05 +01:00
George Oikonomou
07272b7cd6 Improve UART power-cycling logic:
* Only enable TX by default.
* Add some magic for RX handling. When an input handler is registered:
  * Automatically enable RX-related and interrupts
  * Automatically lock the SERIAL PD on under all power modes
  * Automatically enable the UART clock under sleep and deep sleep
  * Automatically undo all of the above when the input handler becomes NULL
  * As a result, modules / examples that need UART RX no longer need to clock the UART and manipulate the SERIAL PD. They simply have to specify an input handler
* Don't automatically power on the UART whenever the CM3 is active
* Before accessing the UART, make sure it is powered and clocked
* Avoid falling edge glitches
* Fix garbage characters / Explicitly wait for UART TX to complete
2015-05-15 09:21:04 +01:00
George Oikonomou
34f52ed08e Improve the LPM module:
* Implement new style of PD locks
* Use our own shutdown sequence rather than the one provided by cc26xxware
* Shutdown from within the interrupt that requested it. This allows shutdown to take place even if the code is stuck in a loop somewhere else
* Improve DCDC/GLDO/uLDO switching logic
* Explicitly handle oscillators and retentions
2015-05-15 09:21:04 +01:00
George Oikonomou
eb5b11a85a Re-order instructions in the RTC startup sequence 2015-05-15 09:21:03 +01:00
George Oikonomou
421fbfae25 Change the LPM locks API:
Instead of using a separate data structure to request that a PD remain powered during deep sleep,
we do the same within the main LPM data structure through an additional field.

This allows us to maintain only one linked list of LPM modules and overall improves code clarity
2015-05-15 09:21:02 +01:00
George Oikonomou
b3ac3ac0c1 Add function to unregister a module from LPM 2015-05-15 09:21:02 +01:00
George Oikonomou
cf99160706 Change lpm_shutdown() API call:
So that the caller can specify pin pull and wakeup state
2015-05-15 09:21:01 +01:00
George Oikonomou
5644e95fb6 Fix global interrupt manipulation 2015-05-15 09:21:00 +01:00
George Oikonomou
bd79e18e1e Switch between oscillator's using the dedicated module's functions 2015-05-15 09:21:00 +01:00
George Oikonomou
ad52d68a0c Add function to configure a pin to a default state 2015-05-15 09:21:00 +01:00
George Oikonomou
3877190196 Change function to static 2015-05-15 09:21:00 +01:00
George Oikonomou
3bbf3cc435 Add SysCtrl glue macros 2015-05-15 09:20:57 +01:00
George Oikonomou
8a42af682d Make sure PERIPH is on before accessing GPT registers 2015-05-15 09:20:57 +01:00
George Oikonomou
9d97dee00b Clock the GPT module only when we need it 2015-05-15 09:20:57 +01:00
George Oikonomou
b7e7d48f0b Add oscillator control wrappers 2015-05-15 09:20:56 +01:00
Brad Campbell
3b6d9e5a64 mc1322x: remove rest tutorial
This tutorial was written for the older implementation of CoAP, and
while it may be possible to update it, the directions include URLs and
repos that no longer exist, so it's better to just remove it.
2015-05-14 17:20:46 -04:00
Benoît Thébaudeau
c9324d133f Merge pull request #1060 from g-oikonomou/cc26xx/contrib/ihex
Produce ihex files usable with TI's Flash Programmer
2015-05-14 19:24:36 +02:00
Benoît Thébaudeau
d64927397f Merge pull request #968 from g-oikonomou/cc2538-contrib-on-chip-sensors
Move CC2538 VDD/3 and On-Chip Temp sensors to the CPU dir
2015-05-14 19:21:56 +02:00
Benoît Thébaudeau
71f22b1775 Merge pull request #966 from g-oikonomou/cc2538-startup-to-cpu-dir
Move cc2538 startup-gcc.c to the CPU dir
2015-05-14 18:43:39 +02:00
George Oikonomou
69c4f19336 Produce ihex files usable with TI's Flash Programmer 2015-05-14 13:22:11 +01:00
George Oikonomou
f7baf5aba2 Change CC2538 USB and UART handlers to weak 2015-05-13 01:31:26 +01:00
George Oikonomou
96e1647270 Move cc2538 startup-gcc.c to the CPU dir 2015-05-13 01:31:10 +01:00
George Oikonomou
3717522680 Re-work the CC2538 driver to be a driver for the Srf06 ALS only 2015-05-12 23:42:19 +01:00
George Oikonomou
06b0ee4a8b Include CC2538 sensors in the build 2015-05-12 23:42:19 +01:00
George Oikonomou
9cc800d728 Add CC2538 VDD sensor driver 2015-05-12 23:42:19 +01:00
George Oikonomou
f474514ee5 Add CC2538 tmp sensor driver 2015-05-12 23:42:19 +01:00
George Oikonomou
40716ab515 Add generic header for CC2538 sensors 2015-05-12 23:42:18 +01:00
George Oikonomou
cf1f722a93 Merge pull request #1045 from g-oikonomou/cc26xx/contrib/cc26xx-rf-wakeup
Fix "CC26xx delayed wakeup after RF TX" bug
2015-05-09 22:50:50 +01:00
George Oikonomou
bd5e35c968 Merge pull request #1052 from simonduq/packetbuf-cleanup
Packetbuf cleanup
2015-05-09 22:30:21 +01:00
George Oikonomou
33526be5ab Merge pull request #985 from g-oikonomou/cc26xx-minor-updates
Minor Updates to the CC26xx Port
2015-05-09 22:29:30 +01:00
George Oikonomou
a2d6df225e Merge pull request #967 from g-oikonomou/cc2538-contrib-rf-local-vars
Use local variable to store RF on/off state
2015-05-09 22:23:31 +01:00
George Oikonomou
94299af9f7 Merge pull request #983 from g-oikonomou/cc26xx-watchdog
Fix typo in CC26xx WDT-related macros
2015-05-09 22:04:06 +01:00
Simon Duquennoy
290fc829ea Consistently use PACKETBUF_ATTR_MAC_SEQNO for MAC sequence number, both input and output. Disable PACKETBUF_ATTR_PACKET_ID in the non-Rime case. 2015-05-06 16:34:44 +02:00
Simon Duquennoy
bb76bb8beb Remove unused flag SICSLOWPAN_CONF_ACK_ALL. Include packetbuf attribute PACKETBUF_ATTR_RELIABLE only when RIME is compiled. 2015-05-06 16:34:26 +02:00
George Oikonomou
c77cf4bb90 Fix BLE on/off check 2015-05-03 22:36:03 +01:00
George Oikonomou
f83c4e7286 Improve code style 2015-05-03 22:36:03 +01:00
George Oikonomou
2059be3a43 Merge pull request #1031 from bthebaudeau/cc2538-gpio-irqs
cc2538: gpio: Improve and fix IRQ management
2015-05-03 18:42:53 +01:00
George Oikonomou
0c827a9739 Fix typo in CC26xx WDT-related macros 2015-05-01 17:13:38 +01:00
George Oikonomou
5cbde8b19b Fix CC26xx RF delayed wakeup after TX bug 2015-05-01 15:26:57 +01:00
Ulf Knoblich
8e624c750d cc2538 i2c bug in clock computation 2015-04-29 11:07:59 +02:00
Benoît Thébaudeau
3d9d52de87 cc2538: gpio: Fix missed interrupts
Only the interrupt flags that have been handled must be cleared.
Otherwise, if a new interrupt occurs after the interrupt statuses are
read and before they are cleared, then it is discarded without having
been handled. This issue was particularly likely with two interrupt
trigger conditions occurring on different pins of the same port in a
short period of time.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau.dev@gmail.com>
2015-04-27 01:14:51 +02:00
Benoît Thébaudeau
1a5632cba0 cc2538: gpio: Fix missed power-up interrupts
Power-up interrupts do not always update the regular interrupt status.
Because of that, in order not to miss power-up interrupts, the ISR must
handle both the regular and the power-up interrupt statuses.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau.dev@gmail.com>
2015-04-27 01:14:51 +02:00
Benoît Thébaudeau
1e67ab3941 cc2538: gpio: Add macros to get interrupt status
Introduce new useful GPIO macros to:
 - get the raw interrupt status of a port,
 - get the masked interrupt status of a port,
 - get the power-up interrupt status of a port.

These macros are cleaner and less error-prone than raw register access
code copied all over the place.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau.dev@gmail.com>
2015-04-27 01:14:51 +02:00
Benoît Thébaudeau
41d9078ed4 cc2538: gpio: Factor out duplicated ISR code
This makes the code easier to maintain, and this reduces the binary
image size.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau.dev@gmail.com>
2015-04-27 01:14:50 +02:00
Oliver Schmidt
a824722862 Merge remote-tracking branch 'upstream/master' 2015-04-26 14:35:40 +02:00
Oliver Schmidt
7b3e80a957 Remove received packet(s) to allow to send one.
Behave just like the CS8900A driver: Both the CS8900A and the LAN91C96 dynamically share a buffer for received packets and packets to be send. If the chip is exposed to a network with a lot of broadcasts the shared buffer might fill quicker with received packets than the 6502 reads them (via polling). So we might need to drop some received packets in order to be able to send anything at all.
2015-04-26 14:23:33 +02:00
George Oikonomou
692d50d22f Don't reject frames with version==1 2015-04-14 12:58:49 +01:00
Nicolas Tsiftes
8f50d9709d Merge pull request #999 from adamdunkels/lebrush-rdnss-support-rebased
RDNSS support, again
2015-03-30 17:21:23 +02:00
George Oikonomou
489f9618e8 Update #if guard to match header filename
Closes #952
2015-03-28 23:53:05 +00:00
George Oikonomou
48e987baac Merge pull request #1005 from alignan/i2c_cc2538
CC2538 I2C driver
2015-03-28 23:23:06 +00:00
Benoît Thébaudeau
19fd7a3551 Use additive offsets
OR-ing an offset to a base address instead of adding it is dangerous
because it can only work if the base address is aligned enough for the
offset.

Moreover, if the base address or the offset has a value unknown at
compile time, then the assembly instructions dedicated to 'base +
offset' addressing on most CPUs can't be emitted by the compiler because
this would require the alignment of the base address against the offset
to be known in order to optimize 'base | offset' into 'base + offset'.
In that case, the compiler has to emit more instructions in order to
compute 'base | offset' on most CPUs, e.g. on ARM, which means larger
binary size and slower execution.

Hence, replace all occurrences of 'base | offset' with 'base + offset'.
This must become a coding rule.

Here are the results for the cc2538-demo example:
 - Compilation of uart_init():
    * before:
        REG(regs->base | UART_CC) = 0;
        200b78:	f446 637c 	orr.w	r3, r6, #4032	; 0xfc0
        200b7c:	f043 0308 	orr.w	r3, r3, #8
        200b80:	2200      	movs	r2, #0
        200b82:	601a      	str	r2, [r3, #0]

    * now:
        REG(regs->base + UART_CC) = 0;
        200b7a:	2300      	movs	r3, #0
        200b7c:	f8c4 3fc8 	str.w	r3, [r4, #4040]	; 0xfc8

 - Size of the .text section:
    * before:	0x4c7c
    * now:	0x4c28
    * saved:	84 bytes

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau.dev@gmail.com>
2015-03-28 17:28:15 +01:00
William Huang
1e39c9a454 fixed SPI_FLUSH. current implementation waits for rx buffer to fill first. Thus, if we call SPI_FLUSH to make sure the rx fifo is empty when the rx fifo is already empty, we enter an infinite loop 2015-03-26 14:17:06 -04:00
Antonio Lignan
22be9fd8b7 I2C driver taken from PR #677, uncrustified, made functions static and added burst modes 2015-03-25 16:44:12 +01:00
George Oikonomou
c169b3e3bb Merge pull request #845 from alignan/fix_region
Changed code region to any
2015-03-10 22:04:38 +00:00
Jonas Olsson
5e5e9b92fd Add CC26xx CPU files 2015-02-25 13:09:56 +01:00