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Commit Graph

321 Commits

Author SHA1 Message Date
Thomas Perrot
44803ea4fd
cpu/atmega32u4: add support for ATmega32U4 2019-05-24 15:12:47 +02:00
Marian Buschsieweke
20b9ef7c5b
cpu/atmega_common: Fix function attributes 
Functions marked with __atribute__((naked)) may only use basic inline assembly
and must not use any c code. The functions __enter_thread_mode() and
cpu_switch_context_exit() are using C code, so they must not be marked as
naked.
 2019-04-26 11:02:01 +02:00
Marian Buschsieweke
70cf9b34c7
cpu/atmega_common: Add barriers to irq_*() 
To prevent reordering of accesses to the interrupt control register when link
time optimization (LTO) is enabled, memory barriers are needed. Without LTO
calls to the external functions irq_disable(), irq_restore(), irq_enable() and
irq_is_in() have the same affect as compiler barriers, as the compiler is unable
to prove that reordering of memory accesses is safe (from a single-threaded
point of view). With LTO the compiler can easily prove that reordering is safe
from a single-threaded point of view: Thus, the compiler may move memory
accesses wrapped in irq_disable(), irq_restore() across those calls.

The memory barriers will have no effect on non-LTO builds.
 2019-04-25 17:42:15 +02:00
Marian Buschsieweke
48fabca38d
cpu/atmega_common: Fix return value of irq_enable 
Citing the doc of irq_enable():

    @return Previous value of status register. [...]

On atmega however the new value of the status register is returned, not the one
prior to enabling interrupts.
 2019-04-25 17:42:02 +02:00
Sebastian Meiling
d08a6132bf
Merge pull request #10934 from gschorcht/cpu_atmega_common_heap 
cpu/atmega_common: make remaining RAM available as heap
 2019-04-15 13:17:57 +02:00
Marian Buschsieweke
ca5e196e78
cpu/atmega_common: Move stdio_init() to cpu_init() 
Moving atmega_stdio_init() to cpu_init() just before periph_init() guarantees
that stdio is available to allow DEBUG() in periph_init(). This also helps to
unify the boot up process of ATmega boards and de-duplicates the stdio init from
board_init().
 2019-04-10 10:18:43 +02:00
Francisco Acosta
2bdcdddd76 cpu/atmega*: make use of common atmega.inc.mk and remove redundancies 
Everything is now defined in atmega.inc.mk, following the common
RIOT-like reusability of rules and variables (e.g. cortexm.inc.mk).
 2019-02-05 17:12:03 +01:00
Gunar Schorcht
ecb26526df cpu/atmega_common: make RAM available as heap 
Fills __malloc_heap_end with the current SP before it enters thread mode to make the remaining RAM available as a heap.
 2019-02-05 02:19:58 +01:00
Gaëtan Harter
9cd50a693a
cpu/atmega_common: do not export LINKFLAGS 
This prevent evaluating `LINKFLAGS` when not needed and when building
in docker so does not produce errors if `avr-ld` is not installed.

```
BUILD_IN_DOCKER=1 BOARD=arduino-mega2560  make --no-print-directory -C examples/hello-world/ clean
/srv/ilab-builds/workspace/git/riot_master/makefiles/toolchain/gnu.inc.mk:18: objcopy not found. Hex file will not be created.
/bin/sh: 1: avr-ld: not found
```

It removes the `/bin/sh: 1: avr-ld: not found`
 2019-01-23 18:32:40 +01:00
Sebastian Meiling
0edf76d362
Merge pull request #9984 from kaspar030/refactor_atmega_libc 
cpu/atmega_common: refactor AVR libc code into module
 2019-01-22 08:41:37 +01:00
Kaspar Schleiser
7313525035 atmega_common: refactor avr-libc-extra into avr_libc_extra module 2019-01-21 14:37:08 +01:00
MrKevinWeiss
3ce03df0ff cpu/atmega_common/uart: Comment why brr calc is different from datasheet 
The brr calculation on the datasheet is different than what is implmented.
This is intentional since it provides better rounding due to truncation.
There was no comment explaining that so this comment should prevent confusion.
 2019-01-07 08:40:21 +01:00
Alexandre Abadie
c97bedcd8b cpu/atmega_common: define eeprom clear byte value 2018-12-04 11:24:57 +01:00
Kevin "Bear Puncher" Weiss
153759b926
Merge pull request #10498 from smlng/pr/adapt/7542 
atmega: add periph_pwm (taken from #7542)
 2018-11-29 15:54:51 +01:00
smlng
262a04c9cf atmega: fix periph timer configuration 
- correct number of timers for atmega328p from 2 to 1
- correct number of timer channels for atmega328p from 3 to 2
- adapt atmega periph timer implementation accordingly
 2018-11-29 09:30:44 +01:00
Victor Arino
2ebb187ca9 cpu/atmega-common: PWM implementation 
Implementation of PWM with 8-bit timers
 2018-11-28 16:00:54 +01:00
Victor Arino
01420152de cpu/atmega-common: add maps for 8-bit timers 2018-11-28 15:58:58 +01:00
PeterKietzmann
8d11ca417f cpu/atmega_common: add mega2560 puf_sram feature 2018-11-20 09:45:32 +01:00
Francisco Acosta
b2fc9b197e cpu/atmega*: remove unnecessary code (already factored out) 
cpu.c and startup.c were redundant in most platforms, except for
atmega256rfr2. The common code is now in cpu/atmega_common/cpu.c
and cpu/atmega_common/startup.c. cpu_conf.h is also removed as
it's now in cpu/atmega_common/include thus shared by all atmega
based platforms.
 2018-11-02 16:23:48 +01:00
Francisco Acosta
4f28407af8 cpu/atmega_common: use the same cpu_conf for all atmega based boards 
Removes redundancy of code since all the boards were defining
the same variables. Moreover, the stack sizes are unified per
architecture, as required.
 2018-11-02 16:23:48 +01:00
Francisco Acosta
feac98cc97 cpu/atmega_common: add cpu.c and startup.c common code 
Removes duplicated code for atmega platforms. They were all
basically the same, only with the exception of atmegarfr2,
for which there is an #if statement to use the code in the
same file.
 2018-11-02 16:23:47 +01:00
Alexandre Abadie
e9a6ebc409 cpu: drivers/eeprom: refactor periph_eeprom implementation 2018-10-16 10:39:10 +02:00
Martine Lenders
0eebda0958 atmega_common: mark closing #endif for MODULE_PERIPH_GPIO_IRQ 2018-10-09 15:10:59 +02:00
Hauke Petersen
94ff02f3c4 cpu/atmega/gpio: use gpio_irq feature 2018-09-21 08:11:20 +02:00
cladmi
9720d9c51c
cpu/atmega_common: Allow specifying a reserved space in ROM 
It is defined using the `ROM_RESERVED` variable.

This should allow supporting arduino bootloader that is stored at the
end of the ROM.
 2018-09-05 12:20:36 +02:00
cladmi
493cad03da
atmega_common: make rom and ram length definition mandatory 
Now all atmega cpu define them so use them by default.
 2018-09-05 12:20:33 +02:00
cladmi
098770aeda
atmega_common: use binutils 2.26 ldscript for older versions 
This allows configuring __TEXT_REGION_LENGTH__ and __DATA_REGION_LENGTH__
for previous versions (ubuntu xenial for example).
 2018-09-05 12:20:17 +02:00
cladmi
6e148bcf1b
atmega_common: allow defining rom and ram length for link. 
Allow configuring __TEXT_REGION_LENGTH__ and __DATA_REGION_LENGTH__ linkerscript
variables using ROM_LEN and RAM_LEN makefile variables.
 2018-09-05 12:08:31 +02:00
ZetaR60
db7734261c
Merge pull request #9823 from fesselk/patch-1 
atmega_common/gpio_init: fix pull-up settings for GPIO_IN_PU
 2018-09-03 20:30:53 -04:00
Karl Fessel
d9aac6a7d4 atmega_common/gpio_init: fix pull-up settings for GPIO_IN_PU 
This Patch makes gpio_init precalculate the pin mask once,
This Patch makes gpio_init of atmega_common configure the pin as an input and configure the pullup in the case of GPIO_IN_PU.
GPIO_IN_PU and GPIO_IN need to change pullup so they need to change output (this is coverd by the not touching outputs is not guaranteed statement)
(this is a special case for atmega the pull_up is configured by writing 1 to the port_register which is also the level of the output if the pin is configured to output).

This fix makes it more compliant to comments in periph/gpio.h
 2018-08-27 20:34:10 +02:00
Hauke Petersen
c2184f3454 boards/cpu/drivers/sys: use generic stdio_ if 2018-08-22 10:54:25 +02:00
Francisco Acosta
73ae563973 eeprom: Makefile.features: reorder features 
They should be sorted alphabetically
 2018-08-15 14:53:56 +02:00
Laurent Navet
c7fed1526c cpu/atmega_common: adapt to new i2c api 
Rework atmega i2c to match new i2c interface.
Only i2c_read_bytes and i2c_write_bytes are implemented.
 2018-07-25 12:01:39 +02:00
Josarn
d6c0398f3d atmega timer: Interrupt Pin 
A debug pin can be used to probe timer interrupts with an oscilloscope or
 other time measurement equipment. Thus, determine when an interrupt occurs
 and how long the timer ISR takes.
 The pin should be defined in the makefile as follows:

CFLAGS += -DDEBUG_TIMER_PORT=PORTF -DDEBUG_TIMER_DDR=DDRF \
            -DDEBUG_TIMER_PIN=PORTF4
 2018-07-18 20:48:17 +02:00
Peter Kietzmann
8ab20f0551
Merge pull request #9456 from ZetaR60/RIOT_atmega_gpio_misc_fix 
cpu/atmega_common: misc gpio interrupt fixes
 2018-06-29 09:18:35 +02:00
Francisco Acosta
23d176f46b
Merge pull request #8857 from ZetaR60/RIOT_atmega_time_dot_h 
cpu/atmega_common: Use updated time.h
 2018-06-28 22:29:20 +02:00
Matthew Blue
adc44e6496 cpu/atmega_common: misc gpio interrupt fixes 2018-06-28 16:06:36 -04:00
Francisco Acosta
f0dce1b920
Merge pull request #8988 from Josar/atmega_isr 
cpu/atmega_common: __exit_isr thread_yield
 2018-06-26 16:12:39 +03:00
steffen
3ad71d5be0 atmega_common/gpio.c Fixes GPIO interrupt 
fixes the GPIO_LOW interrupt on the atmega platform.
It results from trying to shift GPIO_LOW. Since it is 0, it is not shiftable and will not be set correctly.
There were more issues with the other flanks too, as they are 0b01 or 0b00. If 0b11 was set as a flank before it would not be able to switch to any other mode anymore. Now the bits get cleared before the new flank will be written.
 2018-06-21 11:28:42 +02:00
Josarn
91359631d5 cpu/atmega_common/thread_arch.c: uncrustified 2018-06-14 21:47:33 +02:00
Josarn
40c1839a8c cpu/atmega_common/periph/uart.c: uncrustified 2018-06-14 21:47:33 +02:00
Josarn
0e491861af cpu/atmega_common/periph/timer.c: uncrustified 2018-06-14 21:47:33 +02:00
Josarn
fe92771372 cpu/atmega_common/include/cpu.h: uncrustified 2018-06-14 21:47:33 +02:00
Josarn
9b631170cb cpu/atmega_common: uncrustified 2018-06-14 21:47:33 +02:00
Josarn
80b02e5268 cpu/atmega_common: exit_isr thread_yield 2018-06-14 21:47:33 +02:00
Francisco Acosta
1aed925ca8
Merge pull request #8951 from ZetaR60/RIOT_atmega_ext_int_clarity 
cpu/atmega_common: external interrupt fix and refactor
 2018-05-30 16:33:34 +02:00
Matthew Blue
533388d3ae cpu/atmega_common: external interrupt fix and refactor 2018-05-29 11:24:15 -04:00
Matthew Blue
dfa8fb919d sys/timex: fix incompatible atmega time.h 2018-05-28 13:04:55 -04:00
Matthew Blue
442634728f cpu/atmega_common: add struct timespec to time.h 2018-05-28 13:04:55 -04:00
Matthew Blue
b597700a67 cpu/atmega_common: ignore format of avr-libc in CI 2018-05-28 13:04:55 -04:00
Matthew Blue
2a92d480ea cpu/atmega_common: Use updated time.h from avr-libc-2.0.0 2018-05-28 13:04:55 -04:00
Alexandre Abadie
364806e585 cpu/atmega_common: add support for eeprom periph interface 2018-05-24 14:07:55 +02:00
Francisco Acosta
8ab908146e
Merge pull request #8959 from aabadie/pr/cpu/guard_atmega_common 
cpu/atmega_common: remove useless periph file guard
 2018-05-22 19:57:46 +02:00
Koen Zandberg
3f1657ffbb
Merge pull request #8952 from ZetaR60/RIOT_atmega_graceful_clock 
boards/common/atmega: gracefully handle CKDIV8 fuse
 2018-05-14 16:11:17 +02:00
Matthew Blue
55a7d8f83d boards/jiminy-mega256rfr2: remove context swap defines 2018-05-03 17:29:28 -04:00
Matthew Blue
2979626ef6 boards/common/atmega: gracefully handle CKDIV8 fuse 2018-05-02 14:05:33 -04:00
Matthew Blue
ac2b643308 cpu/atmega_common: return to non-interrupt context swaps 2018-04-27 14:13:34 -04:00
Alexandre Abadie
1195ee609f cpu/atmega_common: remove useless periph file guard 2018-04-16 09:58:44 +02:00
Vincent Dupont
0d9badfab5 atmega_common: improve posix_unistd syscalls 
Add open implementation and improve fcntl with variable arguments
 2018-04-13 10:51:07 +02:00
Kaspar Schleiser
2866a26a24
Merge pull request #8808 from Josar/atmega_stackPointer 
cpu/atmega_common: use __temp_reg__
 2018-04-09 12:05:29 +02:00
Kaspar Schleiser
391cc83881 cpu/atmega_common: provide common stdio initialization 2018-04-03 14:18:32 +02:00
Josarn
2ef1001ec7 cpu/atmega_common: use __temp_reg__ 2018-03-30 10:22:32 +02:00
Matthew Blue
d3dc49e2ab cpu/atmega_common: Support for ATmega1284P 2018-03-25 14:24:40 -04:00
Josarn
d82f1eba4c atmega: add last instruction print 
Signed-off-by: Josua Arndt  <josuaarndt@live.de>
 2018-03-06 14:57:18 +01:00
Hauke Petersen
47a500d0b1
Merge pull request #8447 from haukepetersen/opt_test_periphuartpower 
tests/periph_uart: included power_on/off() in test
 2018-03-05 09:49:20 +01:00
Josarn
3bace2bd24 cpu/atmega-common: Adjustments Jiminy-mega256rfr2 
Signed-off-by: Josua Arndt  <josuaarndt@live.de>
Signed-off-by: Steffen Robertz <steffen.robertz@online.de>
 2018-03-02 13:33:26 +01:00
Hauke Petersen
ce9e6f4eb0 cpu/atmega_common: add empty uart/power_x functions 2018-03-02 10:53:55 +01:00
Alexandre Abadie
7847a91e12 cpu: instead of cpp-style, use C-style comments 2018-02-06 16:59:58 +01:00
Martine Lenders
39c122155c
Merge pull request #7995 from smlng/make/fix/unused_params 
make: fix unused-params error
 2017-11-28 14:46:23 +01:00
smlng
7309171303 build: fix unused parameter errors 
cpu, sam0_common: fix unused parameter in periph/spi
        cpu, kinetis_common: fix unused parameter in periph/spi
        cpu, cc2538: fix unused param in periph/i2c
        cpu, cc2538: fix unused param in periph/spi
        cpu, sam3: fix unused param in periph/spi
        cpu, stm32_common: fix unused param in periph/pm
        cpu, stm32f3: fix unused params in periph/i2c
        cpu, nrf5x_common: fix unused param in periph/gpio
        cpu, nrf5x_common: fix unused param in periph/spi
        cpu, lpc2387: fix unused params in periph/spi
        cpu, cc2538: fix unused params in radio/netdev
        cpu, cc2650: fix unused params in periph/uart
        cpu, lm4f120: fix unused param in periph/spi
        cpu, lm4f120: fix unused params in periph/timer
        cpu, lm4f120: fix unused params in periph/uart
        cpu, stm32_common: fix unused params in periph/dac
        cpu, stm32l0: fix unused params in periph/i2c
        cpu, msp430fxyz: fix unused params in periph/uart
        cpu, mips: fix unused params
        cpu, cc430: fix unused-params in periph/timer
        cpu, msp430fxyz: fix unused params in periph/spi
        drivers, cc2420: fix unused param
        cpu, mips32r2_common: fix unused params in periph/timer
        cpu, cc2538: fix unused-param in periph/i2c
        cpu, mips32r2_common: fix unused-param in periph/timer
        cpu, msp430fxyz: fix unused params in periph/timer
        cpu, atmega_common: fix unused params in periph/spi
        driver, nrfmin: fix unused params
        cpu, cc2538_rf: fix unused params
        driver, netdev_ieee802514: fix unused param
        cpu, mip_pic32m: fix unused params
        cpu, lpc2387: fix unused params in periph/pwm
        tests/driver_sdcard_spi: fix unused params
        cpu, sam3: fix unused param in periph/pwm
        tests/driver_dynamixel: fix unused params, and style issues
        cpu, cc430: fix unused param in periph/rtc
        cpu, atmega_common: fix unused params in periph/i2c
 2017-11-28 14:36:01 +01:00
smlng
e381317fbf make: fix sign-compare errors 
cpu, nrf5x_common: fix sign-compare in periph/flashpage
    drivers, periph_common: fix sign-compare in flashpage
    cpu, sam0_common: fix sign-compare error in periph/gpio
    cpu, cc2538: fix sign-compare in periph/timer
    cpu, sam3: fix sign-compare in periph/gpio
    cpu, stm32_common: fix sign-compare in periph/pwm
    cpu, stm32_common: fix sign-compare in periph/timer
    cpu, stm32_common: fix sign-compare in periph/flashpage
    cpu, nrf5x_common: fix sign-compare in radio/nrfmin
    cpu, samd21: fix sign-compare in periph/pwm
    cpu, ezr32wg: fix sign-compare in periph/gpio
    cpu, ezr32wg: fix sign-compare in periph/timer
    drivers, ethos: fix sign-compare
    sys, net: fix sign-compare
    cpu, atmega_common: fix sign-compare error
    cpu, msp430fxyz: fix sign-compare in periph/gpio
    boards, msb-430-common: fix sign-compare in board_init
    driver, cc2420: fix sign-compared
    sys/net: fix sign-compare in gnrc_tftp
    driver, pcd8544: fix sign-compare
    driver, pn532: fix sign-compare
    driver, sdcard_spi: fix sign-compare
    tests: fix sign_compare
    sys/net, lwmac: fix sign_compare
    pkg, lwip: fix sign-compare
    boards, waspmote: make CORECLOCK unsigned long to fix sign_compare error
    tests, sock_ip: fix sign compare
    tests, msg_avail: fix sign compare
    tests, sock_udp: fix sign compare
    boards: fix sign-compare for calliope and microbit matrix
 2017-11-28 11:55:48 +01:00
Kaspar Schleiser
32c10ae2c9 core, cpu: rename thread_start_threading() -> cpu_switch_context_exit() 2017-11-16 14:40:16 +01:00
Kaspar Schleiser
86665b71bf cpu: adapt to COREIF_NG removal 2017-11-16 14:40:16 +01:00
smlng
27c2ee50f9 cpu, atmega_common: fix returns and error codes in periph/i2c 2017-11-13 13:23:06 +01:00
Laurent Navet
9de00af063 cpu/atmega_common: add adc driver 2017-11-10 14:19:08 +01:00
Kaspar Schleiser
a20745b6c5 cpu: make use of Makefile.periph 2017-11-06 12:01:19 +01:00
Martine Lenders
60d543ab3d
Merge pull request #7862 from roberthartung/atmega_common_fix_periph 
atmega_common: renames periph for atmega_common_periph
 2017-11-06 11:55:59 +01:00
Robert Hartung
491f420651 cpu/atmega_common: renames periph module 2017-11-06 11:38:26 +01:00
Kaspar Schleiser
1e52f8d292 cpu: atmega: reorganize Makefile.features 2017-11-02 12:59:45 +01:00
lebrush
c054e38156 Merge pull request #7590 from lebrush/fix/atmega-gpio-misc 
GPIO interrupt fixes for atmega328p
 2017-09-15 11:59:11 +02:00
Victor Arino
6365466078 cpu/atmega_common: fix GPIO INT filter 2017-09-14 20:40:13 +02:00
Victor Arino
294594908a cpu/atmega_common: support for flank low 2017-09-14 20:40:13 +02:00
Victor Arino
650cf81e8a cpu/atmega_common: fix gpio interrupt for atmega328p 2017-09-14 20:34:11 +02:00
Robert Hartung
914025973d cpu/atmega: use power.h defines instead of direct register access 2017-09-14 14:04:14 +02:00
Alexandre Abadie
b2f40534b1 Merge pull request #7541 from lebrush/fix/atmega_typo 
Atmega fix typo and empty space
 2017-09-01 20:29:12 +02:00
dnahm
b313c02c7c Adapted to comments II 2017-08-31 16:11:34 +02:00
dnahm
fe15574c6b Adapted to comments 2017-08-31 16:11:34 +02:00
dnahm
7bab826c38 cpu/atmega_common: add i2c periph driver 2017-08-31 16:11:34 +02:00
Victor Arino
3ba2177b0d cpu/atmega_common: fix typo 2017-08-30 20:08:37 +02:00
Francisco Acosta
f2efd88f98 Merge pull request #7129 from haukepetersen/opt_periph_sharetimerset 
cpu: add and use shared code for timer_set()
 2017-08-01 15:09:48 +02:00
Peter Kietzmann
afbb00cca7 Merge pull request #7225 from dnahm/atmega_spi 
cpu/atmega_common: adjust spi for at328p and at1281
 2017-06-30 08:53:10 +02:00
dnahm
af34c87a8d cpu/atmega_common: adjust spi for at328p and at1281 2017-06-30 08:34:47 +02:00
smlng
01af6d94c4 cpu, periph: retain constness in spi_transfer_bytes 2017-06-29 15:47:13 +02:00
smlng
692cf96297 doc: fix doxygen grouping of cpu periph drivers 2017-06-26 14:42:11 +02:00
Hauke Petersen
a1499f4190 cpu: add and use shared code for timer_set() 2017-06-02 12:21:56 +02:00
Kaspar Schleiser
0fcc7d3834 cleanup: apply headerguard script output 2017-05-24 17:54:02 +02:00
Hauke Petersen
9aad0e528f cpu: cleanup unused/umimplemented isr stack code 
- removed ISR_STACKSIZE define where unused (set to 0)
- removed thread_arch_isr_stack_usage(), thread_arch_isr_stack_start(),
  and/or thread_arch_isr_stack_pointer() where not implemented
 2017-05-12 18:07:08 +02:00
Martine Lenders
96e0ce8ed3 atmega_common: provide implementation for POSIX syscalls 2017-04-03 20:23:14 +02:00
Oleg Hahm
1660abdc70 doc: cpu: fix doxygen 2017-03-10 14:56:28 +01:00
Joakim Nohlgård
9ec001b84b atmega_common: Update unistd.h with prototypes of all POSIX defined functions and constants 2017-03-07 17:59:57 +01:00
Joakim Nohlgård
738876a98f cpu/atmega_common: Improve POSIX headers 2017-03-07 17:59:57 +01:00
Hauke Petersen
ef3cdde903 cpu/atmega_common: fixed doxygen issues 2017-03-07 08:55:15 +01:00
Hauke Petersen
99c2704583 cpu/atmega: implement UART TX only 2017-02-09 10:42:53 +01:00
Anthony Merlino
23efa92cc9 cpu/atmega_common: Adds toolchain flags originally located in atmega-based boards 2017-02-02 14:12:02 -05:00
Bas Stottelaar
3b14a584b8 boards: *: remove SPI_*_EN now rework is merged 2017-01-31 19:38:41 +01:00
Hauke Petersen
f5595693f6 cpu/atmega_common: adapted SPI driver 2017-01-25 16:46:05 +01:00
Oleg Hahm
7ee7801c10 *: remove trailing underscores from header guards 2017-01-19 18:30:53 +01:00
Oleg Hahm
d0316fa7ae periph timer: remove timer_irq_(en|dis)able 2017-01-14 15:34:53 +01:00
Kaspar Schleiser
3e365b89fa cpu: atmega_common: adapt to periph/pm 2017-01-12 16:26:01 +01:00
Kaspar Schleiser
ca7bf15ac4 core: panic: adapt to pariph/pm 2017-01-12 16:26:01 +01:00
Kaspar Schleiser
0194091673 remove obsolete lpm code 2017-01-12 11:24:15 +01:00
Jon Thacker
c62803d243 atmega_common: disable interrupts prior to rebooting 
If the watchdog is being reset in another thread, then
the reboot will never take place. This commit disables interrupts prior
to setting the watchdog timer to 250ms. This functionallity was common
to all Atmega CPUs, so it was moved to atmega_common.
 2016-12-20 17:22:39 -06:00
Hauke Petersen
2eebf36eb2 cpu/uart: make use of named return values 2016-10-28 10:32:00 +02:00
Cenk Gündoğan
9ef148e931 cpu/atmega_common: include time.h for time_t 2016-10-20 15:33:01 +02:00
Oleg Hahm
ed3aa6c46e Merge pull request #5835 from mali/timer 
cpu/atmega_common: fix timer_set_absolute return code
 2016-09-23 19:35:22 +02:00
Ludwig Knüpfer
6d30ced410 Merge pull request #5763 from jthacker/avr_thread_arch_isr_stack_usage 
atmega: use software interrupt for context swap
 2016-09-21 21:13:05 +02:00
Martine Lenders
8a74475e70 Merge pull request #5761 from mali/rmdeadcode 
boards/atmega_common: remove dead code on link
 2016-09-12 17:01:15 +02:00
Martine Lenders
03fbe9c2a5 Merge pull request #5766 from zhuoshuguo/fix_cpu_atmega_header_include_guards 
fix cpu/atmega header include guardes.
 2016-09-12 17:00:56 +02:00
Laurent Navet
4c9c3ab7d6 cpu/atmega_common: fix timer_set_absolute return code 
according to timer documentation, timer_set and timer_set_absolute should
return 1 on succes, not 0.
 2016-09-10 00:12:39 +02:00
Jon Thacker
e0365e0bf9 atmega: use software interrupt for context swap 
Fixes #5745
For AVR based boards, three defines must be defined AVR_CONTEXT_SWAP_INIT,
AVR_CONTEXT_SWAP_INTERRUPT_VECT, and AVR_CONTEXT_SWAP_TRIGGER.
These defines are used to trigger a software interrupt used for context
switching.

When AVR_CONTEXT_SWAP_INTERRUPT_VECT is handled, the scheduler is run
and a context swap will happen if necessary, with the resulting thread
starting following the reti instruction. This results in threads running
at normal priority instead of at interrupt priority.

Atmega devices do provide a pure software interrupt. The method used
here for waspmote-pro and arduino-mega2560 is to use pin change
interrupts, set the pin to act as an output, and toggle the value to
simulate a software interrupt. The main limitation here is that a
physical pin is now occupied and must be defined for each board
supported by RIOT. On the plus side, it provides an easy method for
detecting context swaps with an oscilloscope.
 2016-09-07 14:35:53 -05:00
Shuguo Zhuo
db3a349a51 cpu/atmega: revised header include guards. 2016-09-01 18:32:17 +02:00
kYc0o
5e3747ea8b Merge pull request #5590 from mali/atmega_common 
cpu/atmega_common: improve to add smaller atmega MCUs.
 2016-08-31 18:29:53 +02:00
Jon Thacker
0cc65db1b2 cpu/atmega_common: Add support for double speed baud generator 
* Add support for U2X switch to double transmission speed
* Provides lower error rates when needed
* Add support for static baud rate calculation, reduces computation by 10x
* adds support for statically enabling double speed baud
 2016-08-20 08:49:30 -05:00
Laurent Navet
eed73beaa1 cpu/atmega_common: prepare for atmega328p inclusion 
use generic avr/libc definition for conditionnal compilation.
eg: use #ifdef(PORTG) or #ifdef(TIMER_0_ISRC) instead of #ifdef(Atmega328p)
This is more generic and simplify future boards support.
 2016-08-20 12:23:48 +02:00
Laurent Navet
2cd918a07a atmega_common: abstract Power Reduction Register 
PR Register is PRR0 on atmega2560 and atmega1281
but PRR on atmega328p.
this abstracts as atmega Power Reduction Register as MEGA_PRR.
 2016-08-20 12:21:32 +02:00
Laurent Navet
31029daaab boards/atmega_common: remove dead code on link 
Don't include unused functions and data in binary.
 2016-08-18 22:08:55 +02:00
kYc0o
03d380845e Merge pull request #5593 from jthacker/atmega_regs_common 
cpu/atmega_common: generalize register/peripheral definitions
 2016-07-13 20:17:36 +02:00
Joakim Nohlgård
b02e0eca47 ps: Add current stack pointer and start of stack to isr_stack ps output (DEVELHELP) 2016-07-12 10:17:49 +02:00
Jon Thacker
2aec999900 cpu/atmega_common: generalize register/peripheral definitions 
Makes AVR register definitions dependent on what avr-libc defines
for a given MCU, rather then duplicating that effort here.
Definitions done in this way are based on functionality provided,
rather than a specific MCU device.
 2016-07-08 10:52:22 -05:00
kYc0o
62a9773a9c boards/waspmote-pro: add support for Waspmote PRO v1.2 2016-07-05 13:05:12 +02:00
kYc0o
be70924800 cpu/atmega2560: update atmega2560 CPU code to use atmega_common code 2016-06-22 14:25:10 +02:00
kYc0o
17c78e70e2 cpu/atmega_common: add common atmega CPU code to atmega_common 2016-06-22 14:25:10 +02:00
zhuoshuguo
1cbe79a373 CPU: fix include header guards 
Fix cpu/lpc2387/include/lpc2387.h
 2016-06-08 16:38:20 +02:00
MohmadAyman
53df3e8b57 core: cpu: provide function to acquire ISR stack usage 2016-06-01 23:01:35 +02:00
Kaspar Schleiser
c3f7186d4e unify usage of inline assembly 2016-03-31 22:23:35 +02:00
DipSwitch
5b5810ab7b Merge pull request #5109 from DipSwitch/pr/fix_core_inc_irq 
core: Fix/refactor function naming in core/incude/irq.h
 2016-03-22 08:12:24 +01:00
Joakim Nohlgård
d0033a5d20 avr: Use TARGET_ARCH instead of custom toolchain specification 2016-03-21 12:19:30 +01:00
DipSwitch
0bb4748a94 core: Fix/refactor function naming in core/incude/irq.h 2016-03-20 16:47:34 +01:00
Kaspar Schleiser
2b010b5337 core: rename tcb_t -> thread_t, move into thread.h 2016-03-05 18:20:17 +01:00
Kaspar Schleiser
9082273746 core: header cleanup 2016-02-28 22:46:28 +01:00
Kaspar Schleiser
28d9eab420 cpu: atmega_common_ add off_t to sys/types.h 2015-11-26 20:41:36 +01:00
Kaspar Schleiser
4769c3075d cpu: avr_common: add unistd.h 2015-11-25 14:36:45 +01:00
Kaspar Schleiser
effb15a2cc Merge pull request #3313 from gebart/pr/eINT-fixes 
eINT/dINT fixes
 2015-09-29 12:39:16 +02:00
Oleg Hahm
d89ac480eb atmega: added panic function 2015-09-20 21:44:26 +02:00
Joakim Gebart
199528d3fb cpu/atmega: remove dINT/eINT definitions 2015-09-19 10:35:58 +02:00
Martine Lenders
aaff370bc9 Merge pull request #3710 from authmillenon/cpu/feat/atmega-errno 
atmega_common: give distinct numbers to errnos
 2015-09-17 10:14:57 +02:00
Kaspar Schleiser
7fcb2b718e cpu: atmega: implement irq_arch_in 2015-09-14 10:47:28 +02:00
Oleg Hahm
f3245cecac core: panic: last instruction's address for assert 2015-09-11 23:23:31 +02:00
Oleg Hahm
d7161b6d4b cpu: inline function to print instruction register 2015-09-11 23:23:31 +02:00
Martine Lenders
dc82939eb3 atmega_common: give distinct numbers to errnos 2015-08-25 22:07:22 +02:00
Joakim Gebart
63bde8906e cpu/atmega_common/avr-libc-extra/inttypes.h: Correct format strings for 64 bit numbers 2015-07-07 00:53:26 +02:00
Hauke Petersen
9943f51080 global: renamed cpu-conf.h into cpu_conf.h 2015-05-28 15:45:05 +02:00
Martine Lenders
b11eb90042 Merge pull request #3005 from authmillenon/od/fix/PRI.64 
od: add PRI.64 for unsupported boards
 2015-05-23 10:05:59 +02:00
Martine Lenders
6d13c899c5 od: add PRI.64 for unsupported boards 2015-05-22 11:54:23 +02:00
Joakim Gebart
13832d8e62 everything: Remove filename from @file Doxygen command 2015-05-22 07:34:41 +02:00
Joakim Gebart
9ae63bac0b cpu/atmega_common/avr-libc-extra/time.h: trailing whitespace 2015-05-09 09:10:41 +02:00
Joakim Gebart
215ccc1213 core: Introduce atomic counters 
- Move generic implementation of atomic_set_return to core/atomic.c
 - Generic implementation of atomic compare and swap in core/atomic.c
 - atomic_cas is used to implement atomic counters in core/include/atomic.h
 - atomic_int_t is an atomic integer type
 - ATOMIC_INIT can be used as an initializer for atomic_int_t
 - ATOMIC_VALUE gets a reference to the value of an atomic integer
 2015-05-07 18:52:13 +02:00
BytesGalore
714ee38355 boards: core: cpu: drivers: sys: added missing header guards 2015-01-27 19:10:57 +01:00
Oleg Hahm
04b67f1ff0 doc: avr cleanup 2014-12-06 01:12:31 +01:00
Oleg Hahm
43c86b5a3e doc: fix remaining doxygen warnings 2014-12-04 17:16:57 +01:00
BytesGalore
a4d2ee307c cpu: added extern "C" to headers 2014-11-24 19:10:15 +01:00
René Kijewski
fdb1190cfa avr: define ssize_t 2014-11-11 10:45:56 +01:00
Oleg Hahm
c33e1b5dad Merge pull request #1844 from OlegHahm/doxygen_cleanup 
Doxygen cleanup
 2014-10-24 16:04:01 +02:00
Oleg Hahm
cb48f7cd47 doc: fix warning from avr libc 2014-10-23 20:53:01 +02:00
Oleg Hahm
bbf82ab254 doc: put atmega cpu file into the right group 2014-10-23 20:53:00 +02:00
Oleg Hahm
db8f3d2650 cpu: use typed function pointer for thread_arch_init 2014-10-23 18:26:21 +02:00
Martine Lenders
97bf8b09ad atmega_common: add ENOTSUP and ECANCELED to errno.h 2014-10-01 19:24:12 +02:00
René Kijewski
4e50d74272 core: Provide ssize_t in a common place 
Now you can include `kernel_types.h` if you need the `ssize_t`, without
 facing problems due to the terrible MSP toolchain.
 2014-09-26 14:04:30 +02:00
Hinnerk van Bruinehsen
9933dd0b78 cpu: arm/cortex-mX/atmega: use uintptr_t for sp cast 2014-09-14 02:34:04 +02:00
Hinnerk van Bruinehsen
3d686c7cf1 cpu: atmega: doxygen: blacklist upstream headers 2014-09-06 12:38:04 +02:00
Hinnerk van Bruinehsen
a6b77b4745 cpu: atmega_common: Initial import 2014-08-27 16:22:48 +02:00