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388 Commits

Author SHA1 Message Date
Benjamin Valentin
a17686b551 Revert "cpu/sam0_common: SPI: only mux MISO on spi_acquire()" 
This reverts commit 31bf0c5257.
 2021-02-22 19:46:10 +01:00
Benjamin Valentin
56654478d4 sam0/adc: work around ADC errata on SAM D5x/E5x 
The ADC SYNCBUSY.SWTRIG gets stuck to '1' after wake-up from Standby Sleep mode.
Ignore the ADC `SYNCBUSY.SWTRIG` status bit, this functionality is not used by
the driver anyway.
 2021-02-22 12:39:32 +01:00
Francisco
3b2a55a923
Merge pull request #15865 from benpicco/pm_layered-default 
cpu: make pm_layered a DEFAULT_MODULE
 2021-02-03 08:17:29 +01:00
Dylan Laduranty
1d0dbb4626
Merge pull request #15846 from benpicco/cpu/sam0_common-spi_fixes 
cpu/sam0_common: SPI: MOSI only operation & fix for adafruit-itsybitsy-m4
 2021-01-28 09:26:28 +01:00
Benjamin Valentin
9c1455d55f cpu: make pm_layered a DEFAULT_MODULE 
Allow to disable pm_layered in the bootloader to save some ROM.
 2021-01-27 13:21:20 +01:00
Benjamin Valentin
31bf0c5257 cpu/sam0_common: SPI: only mux MISO on spi_acquire() 2021-01-26 21:42:06 +01:00
benpicco
98726ded6d
Merge pull request #14662 from benpicco/cpu/samd20 
cpu/samd21: add support for SAMD20 & SAM D20 Xplained Pro board
 2021-01-26 19:14:36 +01:00
Benjamin Valentin
00a467e86d cpu/sam0_common: SPI: allow to only configure MOSI/CLK 
Some slave devices (e.g. LED strips) don't have a back-channel and
will only need MOSI and CLK.
 2021-01-24 17:51:44 +01:00
Benjamin Valentin
f11fc64af6 cpu/sam0_common: PWM: fix build on samd20 
There is no SYNCBUSY register, so the dummy fallback does not work.
This code path is not used anyway, so just ifdef it out.
 2021-01-21 20:29:15 +01:00
Daniel Lockau
ef7cbdb312 cpu/sam0_common/periph/flashpage: fix unaligned writes 2021-01-20 09:55:47 +01:00
Benjamin Valentin
3a7aa5d09a cpu/sam0_common: RTC: add timeout to spurious tamper event 
Errate 2.17.4 says:

> Upon enabling the RTC tamper detection feature, a false tamper
> detection *can* be reported by the RTC.

It turns out that this spurious event is not always generated.
If RTC alarm is used and the CPU was previously woken from hibernate
by RTC, it *can* happen that the false tamper event is *not* generated.

In this case, we will block indefinitely on the mutex.

To solve this, add a timeout to the event.
Also poll the event instead of using a mutex, as we have already set
`PM->SLEEPCFG.bit.SLEEPMODE` at this point.
 2021-01-12 17:36:40 +01:00
Benjamin Valentin
5b11da01c1 cpu/sam0_common: UART: add support for SAMD20 2021-01-12 15:48:39 +01:00
Benjamin Valentin
93d27bb9a0 cpu/sam0_common: I2C: add support for SAMD20 2021-01-12 15:48:39 +01:00
Benjamin Valentin
31b8dad147 cpu/samd21: add support for SAMD20 2021-01-12 15:48:39 +01:00
Benjamin Valentin
7b65398ae1 cpu/sam0_common: add samd20 vendor files 
Files from Atmel.SAMD20_DFP.1.3.165.atpack
 2021-01-12 15:48:39 +01:00
Benjamin Valentin
8004aa4d34 cpu/sam0_common: not every CPU has DMA 2021-01-12 15:48:37 +01:00
Alexandre Abadie
ba85c2d9ca
cpu/sam0_common: fix ENABLE_DEBUG definition 2021-01-08 14:37:33 +01:00
dylad
e98459f414 cpu/saml11: fix GPIO/IOBUS management 2020-12-15 17:00:54 +01:00
Dylan Laduranty
aec905d697
Merge pull request #15620 from benpicco/cpu/sam0_common/dac_startup 
cpu/sam0_common: DAC: wait for DAC to be ready
 2020-12-15 12:25:32 +01:00
dylad
a1f5b6182d cpu/sam0: add initial Ethernet support 2020-12-13 22:01:50 +01:00
Benjamin Valentin
c5c46ba35b cpu/sam0_common: DAC: wait for DAC to be ready 
The DAC can have some start-up delay.
If we try to write to it before it's ready, it will get stuck.

This happens now that `tests/driver_dac_dds` immediately sets a DAC
value after init.

The samd2x class of MCUs doesn't have this bit, but a quick test on
samd10 shows that it might not be nececary there - the DAC does not
get stuck when writing to it immediately after init.
 2020-12-13 02:11:36 +01:00
Benjamin Valentin
8f72212eb0 cpu/sam0_common: SPI: add support for QSPI in SPI mode 
We can use the QSPI peripheral as an additional (non-Quad) SPI peripheral.
 2020-12-11 22:33:08 +01:00
Benjamin Valentin
94c7f40b9c cpu/sam0_common: SPI: add support for SAMD20 2020-12-11 22:33:07 +01:00
Benjamin Valentin
fb2a6b7024 cpu/sam0_common: SPI: cleanup 
Insert whitespace and factor out functions to make it easier to
add functionality.
 2020-12-11 22:33:07 +01:00
Benjamin Valentin
531fca952b cpu/sam0_common: add samd10 vendor files 
Files from Atmel.SAMD10_DFP.1.1.77.atpack
 2020-12-11 18:25:36 +01:00
Benjamin Valentin
2845554b4e cpu/sam0_common: flashpage: rename to sam0_flashpage_aux_write() 
`flashpage_write_raw()` got renamed to `flashpage_write()`.
Now `sam0_flashpage_aux_write_raw()` is the only remaining 'raw'
function, even though it behaves just like `flashpage_write()`.

So let's also rename that for consistency.
 2020-11-17 00:34:31 +01:00
Koen Zandberg
72d7a903a2
sam0: Adapt to flashpage/flashpage_pagewise API 2020-11-11 23:16:41 +01:00
Benjamin Valentin
4e8c461f46 cpu/sam0_common: flashpage: invalidate cache on _lock() 2020-11-10 14:21:47 +01:00
Benjamin Valentin
e6192a13bd cpu/sam0_common: flashpage: support unaligned writes 
We can pad the unaligned bytes with 0xFF to make up a whole word that
can be written.
 2020-11-10 12:18:47 +01:00
Benjamin Valentin
20f093ede6 cpu/sam0_common: flashpage: introduce functions to write to user page 2020-11-10 12:18:47 +01:00
Leandro Lanzieri
7185edb070
cpu/sam0_common/periph: add periph_rtc_rtt module to Kconfig 2020-11-06 15:57:56 +01:00
Marian Buschsieweke
60802f864a
Merge pull request #15149 from benpicco/cpu/samd21-gclk7 
cpu/samd21: improve GCLK7 magic
 2020-11-03 18:14:09 +01:00
Marian Buschsieweke
d046772e7f
Merge pull request #15348 from maribu/periph_timer_type 
drivers/periph_timer: Use uint32_t over unsigned long for frequency
 2020-10-30 23:22:51 +01:00
Marian Buschsieweke
125c892c03
drivers/periph/timer: Use uint32_t for frequency 
For all currently supported platforms `unsigned long` is 32 bit in width. But
better use `uint32_t` to be safe.
 2020-10-30 22:02:12 +01:00
Benjamin Valentin
8e4af4d778 cpu/sam0_common: remove unused linker script 
`samd21j18a_arduino_bootloader.ld` is not referenced anywhere else
in the codebase and it's job is performed by the generic `ROM_OFFSET`
variable.
 2020-10-28 23:17:48 +01:00
Bas Stottelaar
22243aec7a cpu/*: realign ENABLE_DEBUG 2020-10-23 00:46:26 +02:00
Bas Stottelaar
fb61443bbd cpu/*: remove unused assert.h include 2020-10-22 11:13:09 +02:00
Bas Stottelaar
ab6188cea3 cpu/*: add missing include of assert.h 2020-10-22 11:13:08 +02:00
Cenk Gündoğan
f05ac07f19
Merge pull request #15217 from leandrolanzieri/pr/kconfig/allow_merge_configs 
makefiles/kconfig: always allow to use KCONFIG_ADD_CONFIG
 2020-10-13 15:11:09 +02:00
Leandro Lanzieri
4d7ea1b50a
makefiles/kconfig: always allow to use KCONFIG_ADD_CONFIG 2020-10-13 09:53:00 +02:00
Leandro Lanzieri
fe6d66d92a
kconfig: add ERROR symbol for conflicting modules 2020-10-09 18:04:17 +02:00
Benjamin Valentin
35d6736d9d cpu/sam0_common: PWM: use named GCLK for disabling peripheral 2020-10-02 23:17:53 +02:00
Alexandre Abadie
35f357a9ad
cpu/sam0_common: fix typos 
- 'acces' -> 'access'
- 'withing' -> 'within'
 2020-10-02 07:58:35 +02:00
Benjamin Valentin
310eb4970c cpu/sam0_common: GPIO: use tamper detection to wake from Deep Sleep 
On samd5x only the RTC can wake the CPU from Deep Sleep (pm modes 0 & 1).
The external interrupt controller is disabled, but we can use the tamper
detection of the RTC.

If an gpio interrupt is configured on one of the five tamper detect pins,
those can be used to wake the CPU from Deep Sleep / Hibernate.
 2020-09-17 18:46:25 +02:00
Benjamin Valentin
0499d016ad cpu/sam0_common: implement RTC tamper detection 2020-09-17 18:45:50 +02:00
benpicco
5715f5776b
Merge pull request #14804 from bergzand/pr/sam0/gpio_iobus 
sam0_common: Use Single-cycle I/O Port for GPIO when available
 2020-09-10 23:45:43 +02:00
Dylan Laduranty
4db8a1f602
Merge pull request #14478 from benpicco/cpu/sam0/tc_pwm 
cpu/sam0_common: add support to run PWM off TC timers
 2020-09-10 23:04:58 +02:00
Koen Zandberg
ddb22a3c56
sam0_common: Use Single-cycle I/O Port for GPIO when available 
The Cortex-m0 based ATSAM devices can use the Single-cycle I/O Port for
GPIO. This commit modifies the gpio_t type to use this port when
available. It is mapped back to the peripheral memory space for
configuration access.  When it is not available, the _port_iobus() and
_port() functions behave identical, which is the case for the samd51.
 2020-09-10 22:13:24 +02:00
Benjamin Valentin
0437461812 cpu/sam0_common: PWM: add support to run PWM off TC timers 2020-09-10 21:47:03 +02:00
Leandro Lanzieri
2e79e00ca7
treewide: change Kconfig prefix for module symbols 
This changes the prefix used for the symbols that reprensent modules
(not the ones generated from USEMODULE).

MOD_ => MODULE_
 2020-08-31 09:57:28 +02:00
Leandro Lanzieri
d25fc243c4
treewide: change prefix for generated Kconfig symbols. 
This changes the prefixes of the symbols generated from USEMODULE and
USEPKG variables. The changes are as follow:

   KCONFIG_MODULE_ => KCONFIG_USEMODULE_
   KCONFIG_PKG_ => KCONFIG_USEPKG_
   MODULE_ => USEMODULE_
   PKG_ => USEPKG_
 2020-08-31 09:37:09 +02:00
Benjamin Valentin
cd5a847684 cpu/sam0_common: define CPU_FAM based on CPU_MODEL 2020-08-24 16:13:18 +02:00
Benjamin Valentin
52a95642d5 sam0/adc: make driver MCU family agnostic 
Replace checks for `CPU_SAMD21` with checks for actual defines.
 2020-08-24 16:13:18 +02:00
Benjamin Valentin
7ed4979148 cpu/samd5x: define CPU_COMMON_SAMD5X symbol and use it 2020-08-24 16:13:18 +02:00
Benjamin Valentin
cc7f897cbc cpu/saml1x: define CPU_COMMON_SAML1X symbol and use it 2020-08-24 16:13:18 +02:00
Benjamin Valentin
5d96151775 cpu/saml21: define CPU_COMMON_SAML21 symbol and use it 2020-08-24 16:13:18 +02:00
Benjamin Valentin
e32b0783c4 cpu/samd21: define CPU_COMMON_SAMD21 symbol and use it 2020-08-24 16:13:18 +02:00
Benjamin Valentin
582da9b233 cpu/sam0_common: add script to generate Kconfig files for all parts 
e.g. Usage:

	./sam0_common/dist/kconfig_gen.sh samd51
 2020-08-24 16:13:18 +02:00
János Brodbeck
083b3c167f
sam0/adc: add support for samd5x/same5x 
Add samd5x/same5x support  through introducing ADC_DEV as alias for ADC0/ADC1/ADC. ADC (respectively ADC0) is the default if no device is set.
 2020-08-19 18:00:29 +02:00
Leandro Lanzieri
7dc6639f59
cpu/cortexm_common: add default Kconfig configuration 2020-08-12 12:22:43 +02:00
Leandro Lanzieri
f4e651e26d
cpu/sam0_common: Add default Kconfig configuration 
The configuration file is included by samd21 so it is merged when using
Kconfig.
 2020-08-12 12:22:42 +02:00
Leandro Lanzieri
0ddd2886b7
cpu/sam0_common: add sam0_common_periph module to Kconfig 2020-08-12 12:22:39 +02:00
benpicco
419ee52ddc
Merge pull request #14711 from benpicco/cpu/sam0_common/gpio-intermediate_irq 
cpu/sam0_common: GPIO: ignore stale interrupts
 2020-08-11 16:32:57 +02:00
benpicco
3ef906c841
Merge pull request #14563 from benpicco/cpu/sam0_common-bitarithm_test_and_clear 
cpu/sam0_common: GPIO: use bitarithm_test_and_clear()
 2020-08-11 14:05:06 +02:00
Francisco
16f47fc893
Merge pull request #14502 from benpicco/cpu/sam0_common/flashpage_cleanup 
cpu/sam0_common: flashpage: clean up implementation
 2020-08-10 08:21:49 +02:00
Benjamin Valentin
d02aa4a6b5 cpu/sam0_common: RTC: use RIOT_EPOCH 2020-08-07 13:24:10 +02:00
Benjamin Valentin
39d71ac671 cpu/sam0_common: GPIO: ignore interrupts when interrupts are disabled 
If we disable an external interrupt, GPIO events that would generate an interrupt will still set the interrupt flag.
That means once we enable the interrupt again, a stale interrupt will be triggered.

This is surprising and probably not what the user wants, unfortunately the API documentation is not very clear about what to expect.
There is however no way to drop those intermediate interrupts with the current API.

Ignoring the events that occurred while the GPIO interrupt were disabled is probably the right (and expected) thing to.
 2020-08-05 16:57:05 +02:00
Leandro Lanzieri
d7dbbb71ac
Merge pull request #14226 from benpicco/cpu/sam0_common/i2c_arbitrary_freqs 
cpu/sam0_common: i2c: fix BAUD handling & cleanup
 2020-08-04 14:49:10 +02:00
Benjamin Valentin
1472d2095c cpu/sam0_common: i2c: document frequency constraints 2020-08-04 12:13:28 +02:00
Benjamin Valentin
e560042488 cpu/sam0_common: flashpage: split RWWEE and normal functions 
Move common code into helper functions and extract the commands
that differ between normal and RWWEE page reading / writing.
This cuts down on `#ifdef` use.
 2020-08-04 12:00:49 +02:00
Benjamin Valentin
83a56ae666 cpu/sam0_common: merge RTC & RTT implementation 
The RTC and RTT share the same peripheral, so they can also
share the same code.

This is needed to integrate the Tamper Detection into common
RTC/RTT code.
 2020-07-31 22:00:09 +02:00
Benjamin Valentin
cc2a3c9fd3 cpu/sam0_common: GPIO: use bitarithm_test_and_clear() 2020-07-28 12:43:39 +02:00
Benjamin Valentin
003c25b2e8 cpu/sam0_common: uart: document frequency constraints 2020-07-28 11:22:22 +02:00
Benjamin Valentin
e1f84de6c5 cpu/sam0_common: UART: simplify init sequence 
We don't need to read-modify-write the CTRLA register to disable
the UART.
The entire CTRLA register is re-written just a few lines below, so
we can just set it to 0 to disable the UART.

There is also no need to reset the UART since we re-write all config
registers in init.
 2020-07-28 11:22:22 +02:00
Benjamin Valentin
28c1c502bc cpu/sam0_common: UART: implement arithmetic BAUD mode 
SAMD20 does not implement a Fractional Baud mode, so we have to
implement Asynchronous Arithmetic mode.
 2020-07-28 11:22:22 +02:00
Benjamin Valentin
e6f33fc436 cpu/sam0_common: uart: implement the periph_uart_reconfigure feature 2020-07-28 10:10:15 +02:00
Benjamin Valentin
62dbb21f19 cpu/sam0_common: UART move pin configuration to function 
Makes the init code easier to read.
 2020-07-28 10:10:15 +02:00
Benjamin Valentin
4df36cbfda cpu/sam0_common: i2c: improve readability of baud rate calculation 
Use variables to represent fSCL an fGCLK to make the baud rate calculation
more readable.
 2020-07-25 15:14:55 +02:00
Benjamin Valentin
2fb0d9061f cpu/sam0_common: i2c: fix High Speed 2020-07-25 15:14:55 +02:00
Benjamin Valentin
7269dc4e3a cpu/sam0_common: i2c: allow arbitrary I2C frequencies 
The Atmel I2C peripheral supports arbitrary I2C frequencies.
Since the `i2c_speed_t` enum just encodes the raw frequency values,
we can just use them in the peripheral definition.

We just have to remove the switch-case block that will generate an error
for values outside of `i2c_speed_t`.
 2020-07-25 15:14:55 +02:00
Benjamin Valentin
c5f6a5c6f5 cpu/sam0_common: PWM: prepare for TC timers as PWM source 2020-07-19 01:38:15 +02:00
Benjamin Valentin
a96e5666b4 cpu/sam0_common: PWM: fix doxygen group 2020-07-19 01:38:15 +02:00
Benjamin Valentin
48340f971f cpu/sam0_common: flashpage: clean up helper function 2020-07-14 20:50:50 +02:00
benpicco
30ebabb84e
Merge pull request #14007 from benpicco/cpu/sam0_common-pwm 
cpu/sam0_common: move PWM to common code, add support for saml21, samd5x
 2020-07-09 10:01:08 +02:00
Benjamin Valentin
bce7d25f10 cpu/sam0_common: add PWM support for saml2x, samd5x 2020-07-08 21:51:12 +02:00
Francisco
325b7a8d8e
Merge pull request #13631 from benpicco/cpu/sam0_common/spi-deinit 
drivers/periph/spi: add periph_spi_reconfigure feature & implementation for sam0
 2020-06-30 15:34:53 +02:00
Francisco
48bdd7018a
Merge pull request #14302 from fjmolinas/pr_sam0_rtt_opt 
cpu/sam0_common/rt%: use READREQUEST when accessing CLOCK/COUNT regs
 2020-06-24 08:42:03 +02:00
Bas Stottelaar
6774f7e412
Merge pull request #14337 from benpicco/TIMER_CHANNEL_NUMOF 
use TIMER_CHANNEL_NUMOF instead of TIMER_CHANNELS
 2020-06-24 01:19:17 +02:00
Benjamin Valentin
c8ff026640 cpu/sam0_common: use TIMER_CHANNEL_NUMOF 2020-06-24 00:45:35 +02:00
Francisco
a73b61e30b
Merge pull request #14320 from benpicco/cpu/sam0_common-gpio_gclk 
cpu/sam0_common: GPIO always default to MAIN clock for EXTI, make configurable
 2020-06-23 22:48:45 +02:00
Benjamin Valentin
3e91914831 cpu/sam0_common: spi: implement the periph_spi_reconfigure feature 2020-06-21 21:19:17 +02:00
Francisco Molina
bdda25c534
cpu/sam0_common/rt%: issue READREQUEST to access CLOCK/COUNT regs 
read-synchronized register will stall immediatly when read, instead
issue READREQUEST and wait for sync to be unset.
 2020-06-19 14:10:31 +02:00
Benjamin Valentin
c0203ad35c cpu/sam0_common: GPIO default to MAIN clock for EXTI, make configurable 
Currently only samd21 used the 32 kHz clock for EXTI which makes it miss fast events.
All newer members of the family use the MAIN clock.

While touching this, also make the clock source configurable to this can be overwritten,
e.g. in the board config if desired.
 2020-06-19 13:27:48 +02:00
Francisco
a970163812
Merge pull request #14312 from benpicco/cpu/sam0_common/periph/uart-rxonly 
cpu/sam0_common: UART: allow RX only configuration
 2020-06-19 11:44:10 +02:00
benpicco
c3314e1a0c
Merge pull request #14303 from fjmolinas/pr_sam0_unified_rtt 
cpu/sam0: unified rtt configuration
 2020-06-19 11:30:06 +02:00
Francisco Molina
ff24aa61f3
cpu/sam0_common/periph/rtt: uncrustify 2020-06-19 09:16:24 +02:00
Francisco Molina
15bbd95b6a
cpu/sam0_common/rtt: add configurable RTT_FREQUENCY 2020-06-19 09:16:24 +02:00
Benjamin Valentin
5c3ae77df9 cpu/sam0_common: UART: allow RX only configuration 2020-06-19 00:33:50 +02:00
Dylan Laduranty
6bf0a41399
Merge pull request #13600 from benpicco/sam0-gpio 
cpu/sam0_common: GPIO IRQ optimizations
 2020-06-17 21:23:19 +02:00
Alexandre Abadie
07c78efc83
Merge pull request #14285 from fjmolinas/pr_uart_nb_race 
sam0/stm32: fix possible uart_nonblocking deadlock
 2020-06-17 12:14:25 +02:00