Commit Graph

90 Commits

Author SHA1 Message Date
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
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
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
Ulf Knoblich
d8efa8428c cc2538: Allow for configuration of processor speed 2015-05-19 18:55:55 +02:00
Ulf Knoblich
a388a1bcd7 CC2538: added support for SSI1 2015-05-18 10:02:55 +02:00
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
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
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
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
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
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
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
5288725af7 Use local variable to store RF on/off state
Fixes #823
2015-02-18 09:05:02 +01:00
George Oikonomou
6bd8bb05f6 Improve wording 2015-02-16 10:17:58 +01:00
George Oikonomou
8751e55c94 Improve wording, fix warnigs in the SSI/SPI docs 2015-02-16 10:17:58 +01:00
George Oikonomou
a93a8912c2 Clarify GPIO read and write macros 2015-02-16 10:17:57 +01:00
George Oikonomou
4100cbc9c0 Fix doxygen warning in the CC2538 uDMA driver's header 2015-02-16 10:17:57 +01:00
George Oikonomou
88e190103c Fix doxygen warning in the CC2538 SPI driver 2015-02-16 10:17:57 +01:00
Michael Karlsson
62fc6f2f07 corrected code style error 2015-02-13 13:46:57 +01:00
Michael Karlsson
be9879cf18 fixed error in saving status 2015-01-21 22:35:30 +01:00
Michael Karlsson
37def294ce fixed bug that made radio die after error when not using default channel and/or not using a RDC protocol 2015-01-21 22:28:31 +01:00
Jelmer Tiete
b088326b5e Corrected the register offset value of ANA_REGS_IVCTRL. TI was using the address offset instead of the physical address in their header file. 2014-12-19 04:14:34 -05:00
George Oikonomou
2e166a83c7 Merge pull request #691 from hexluthor/rts-cts
CC2538: Add hardware flow control (RTS/CTS) support on UART1.
2014-06-04 09:22:58 +01:00
George Oikonomou
ba9c2d40eb Merge pull request #682 from g-oikonomou/watchdog-cc2538
Confine CC2538 WDT on/off conf inside the driver
2014-06-03 22:05:08 +01:00
Adam Dunkels
64f65b4e45 Merge pull request #617 from nfi/extended-radio-api
Extended radio API with support for setting channel, pan id, addressing modes, etc
2014-06-03 21:32:53 +02:00
Ian Martin
274b3dcd0b CC2538: Add hardware flow control (RTS/CTS) support on UART1. 2014-06-03 12:38:24 -04:00
George Oikonomou
807ee624e4 Confine CC2538 WDT on/off conf inside the driver
Instead of requiring all calls to `watchdog_start` to be
wrapped inside `#if WATCHDOG_CONF_ENABLE` guards, we control
things from within the WDT driver itself.

This commit also includes some minor documentation and
indentation cleanups
2014-05-18 14:12:16 +02:00
Ian Martin
7081440eff CC2538: Add WATCHDOG_CONF_ENABLE to optionally disable the watchdog timer. 2014-05-02 10:28:30 -04:00
George Oikonomou
08c884afa0 Improve the CC2538 extended RF API implementation
* Decouple 64-bit address from LINKADDR_SIZE
* get and set object from/to the start/end of the src/dest buffer
* We expect size == 8 (rather than size < 8) for both get_ and set_object. Error otherwise
* The RF no longer sets parameters by itself. We let the platform do this, using the extended API.
2014-04-23 12:20:16 +01:00
George Oikonomou
6028c0765f Don't hardcode min and max TX power values 2014-04-23 12:16:50 +01:00
George Oikonomou
b0f1199202 Merge pull request #636 from g-oikonomou/fix-random-init-lockup
Fix CC2538 random_init lockup
2014-04-18 13:28:40 +01:00
Benoît Thébaudeau
d93d129da6 cc2538: uart: Make it possible to use several UARTs simultaneously
This avoids the limitation of having a single UART available at runtime, without
duplicating code.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
2014-04-17 18:53:44 +02:00
Brad Campbell
af27d2d252 [CC2538-SPI] Implement SPI_FLUSH, spi mode, !CS
Because the CC2538 has a multi-byte SPI RX FIFO, flushing the buffer
requires more than just a single read. This adds a loop that empties the
entire RX buffer on a FLUSH().

Different SPI chips needs different SPI settings. This commit adds a
function that allows chip drivers to configure the SPI peripheral before
using it.

The frame pin the driver was using as a chip select does not work as
most devices expect it to. It toggles after every byte, and most chips
interpret that as end of message. To make drivers more reliable, each
chip driver should setup a GPIO and assert it as needed.
2014-04-15 14:07:10 -04:00
George Oikonomou
0ec1eda75e Implement extended RF API for the CC2538 2014-04-14 15:25:30 +02:00
George Oikonomou
eed1352282 Fix CC2538 random_init lockup
Contiki sometimes fails to boot correctly and locks up in
random_init()

This problem only manifests itself for specific versions
of the arm-gcc toolchain and then again only for specific
levels of optimisation (-Os vs -O2, depending on the
value of the SMALL make variable)

The lockup is caused when we write an RFCORE XREG before
the RF clock ungating has taken effect, which in turn
only occurs depending on the assembly generated for those
two instructions:

  REG(SYS_CTRL_RCGCRFC) = 1;

  REG(RFCORE_XREG_FRMCTRL0) = 0x00000008;

This commit makes the RNG wait for the ungating to take
effect before attempting to write the register
2014-04-13 14:38:00 +01:00
George Oikonomou
33abe26ec8 Merge pull request #411 from ADVANSEE/cc2538-adc
cc2538: Add adc driver and example
2014-04-13 03:05:12 +01:00
Niclas Finne
a98e153e23 Added stub for extended radio API for cc2538 2014-04-03 13:38:23 +02:00
Ian Martin
336224633a Eliminate UART_CONF_IBRD and UART_CONF_FBRD. 2014-03-22 10:26:03 -04:00
Ian Martin
ee45fc7533 Change uart_set_baudrate() to a do-while statement. 2014-03-22 10:22:11 -04:00