cpu/sam0_common: implement periph_gpio_ll and periph_gpio_ll_irq #20189

maribu · 2023-12-15T13:10:27Z

Contribution description

This implements periph_gpio_ll and periph_gpio_ll_irq for SAM0 based MCUs.

Testing procedure

make BOARD=samr21-xpro flash test-with-config -C tests/periph/gpio_ll 
make: Entering directory '/home/maribu/Repos/software/RIOT/gpio_ll_sam0/tests/periph/gpio_ll'
Building application "tests_gpio_ll" for "samr21-xpro" with MCU "samd21".

"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/pkg/cmsis/ 
"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/boards/common/init
"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/boards/samr21-xpro
"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/core
"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/core/lib
"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/cpu/samd21
"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/cpu/cortexm_common
"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/cpu/cortexm_common/periph
"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/cpu/sam0_common
"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/cpu/sam0_common/periph
"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/cpu/samd21/periph
"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/cpu/samd21/vectors
"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/drivers
"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/drivers/periph_common
"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/sys
"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/sys/auto_init
"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/sys/div
"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/sys/frac
"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/sys/isrpipe
"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/sys/libc
"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/sys/malloc_thread_safe
"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/sys/newlib_syscalls_default
"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/sys/pm_layered
"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/sys/preprocessor
"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/sys/stdio_uart
"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/sys/test_utils/interactive_sync
"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/sys/test_utils/print_stack_usage
"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/sys/tsrb
"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/sys/ztimer
   text	  data	   bss	   dec	   hex	filename
  21788	   176	  2708	 24672	  6060	/home/maribu/Repos/software/RIOT/gpio_ll_sam0/tests/periph/gpio_ll/bin/samr21-xpro/tests_gpio_ll.elf
/home/maribu/Repos/software/RIOT/gpio_ll_sam0/dist/tools/edbg/edbg.sh flash /home/maribu/Repos/software/RIOT/gpio_ll_sam0/tests/periph/gpio_ll/bin/samr21-xpro/tests_gpio_ll.bin
### Flashing Target ###
Debugger: ATMEL EDBG CMSIS-DAP ATML2127031800009225 03.25.01B6 (S)
Clock frequency: 16.0 MHz
Target: SAM R21G18 (Rev C)
Verification...
at address 0x40 expected 0xfd, read 0xf1
Error: verification failed
Debugger: ATMEL EDBG CMSIS-DAP ATML2127031800009225 03.25.01B6 (S)
Clock frequency: 16.0 MHz
Target: SAM R21G18 (Rev C)
Programming...... done.
Verification...... done.
Done flashing
r
/home/maribu/Repos/software/RIOT/gpio_ll_sam0/dist/tools/pyterm/pyterm -p "/dev/ttyACM1" -b "115200" --no-reconnect --noprefix --no-repeat-command-on-empty-line 
Connect to serial port /dev/ttyACM1
Welcome to pyterm!
Type '/exit' to exit.
READY
s
START
main(): This is RIOT! (Version: 2024.01-devel-411-g5552b4-cpu/sam0_common/periph_gpio_ll)
Test / Hardware Details:
========================
Cabling:
(INPUT -- OUTPUT)
  P1.2 (PB2) -- P0.14 (PA14)
  P1.23 (PB23) -- P0.8 (PA8)
Number of pull resistor values supported: 1
Number of drive strengths supported: 2
Number of slew rates supported: 1
Valid GPIO ports:
- PORT 0 (PORT A)
- PORT 1 (PORT B)
- PORT 2 (PORT C)

Testing gpio_port_pack_addr()
=============================

All OK

Testing gpip_ng_init()
======================

Testing is_gpio_port_num_valid() is true for PORT_OUT and PORT_IN:

Testing input configurations for PIN_IN_0:
Support for input with pull up: yes
state: in, pull: up, schmitt trigger: on, value: on
Support for input with pull down: yes
state: in, pull: down, schmitt trigger: on, value: off
Support for input with pull to bus level: no
Support for floating input (no pull resistors): yes
state: in, pull: none, schmitt trigger: on, value: off

Testing output configurations for PIN_OUT_0:
Support for output (push-pull) with initial value of LOW: yes
state: out-pp, drive: weak, value: off
Output is indeed LOW: yes
state: out-pp, drive: weak, value: on
Output can be pushed HIGH: yes
Support for output (push-pull) with initial value of HIGH: yes
state: out-pp, drive: weak, value: on
Output is indeed HIGH: yes
Support for output (open drain with pull up) with initial value of LOW: no
Support for output (open drain with pull up) with initial value of HIGH: no
Support for output (open drain) with initial value of LOW: no
Support for output (open drain) with initial value of HIGH: no
Support for output (open source) with initial value of LOW: no
Support for output (open source) with initial value of HIGH: no
Support for output (open source with pull up) with initial value of HIGH: no
Support for output (open source with pull up) with initial value of LOW: no
Support for disconnecting GPIO: yes
state: off, drive: weak, pull: none, schmitt trigger: off, value: off
Output can indeed be pulled LOW: yes
Output can indeed be pulled HIGH: yes

Testing Reading/Writing GPIO Ports
==================================

testing initial value of 0 after init
...OK
testing setting both outputs_optional simultaneously
...OK
testing clearing both outputs_optional simultaneously
...OK
testing toggling first output (0 --> 1)
...OK
testing toggling first output (1 --> 0)
...OK
testing toggling second output (0 --> 1)
...OK
testing toggling second output (1 --> 0)
...OK
testing setting first output and clearing second with write
...OK
testing setting second output and clearing first with write
...OK
All input/output operations worked as expected

Testing External IRQs
=====================

Testing rising edge on PIN_IN_0
... OK
Testing falling edge on PIN_IN_0
... OK
Testing both edges on PIN_IN_0
... OK
Testing masking of IRQs (still both edges on PIN_IN_0)
... OK
Testing level-triggered on HIGH on PIN_IN_0 (when input is LOW when setting up IRQ)
... OK
Testing level-triggered on HIGH on PIN_IN_0 (when input is HIGH when setting up IRQ)
... OK
Testing level-triggered on LOW on PIN_IN_0 (when input is HIGH when setting up IRQ)
... OK
Testing level-triggered on LOW on PIN_IN_0 (when input is LOW when setting up IRQ)
... OK


TEST SUCCEEDED

Issues/PRs references

Depends on and includes drivers/periph/gpio_ll: shrink gpio_conf_t #20236

riot-ci · 2023-12-15T13:12:01Z

Murdock results

✔️ PASSED

1484d30 cpu/sam0_common: implement periph_gpio_ll_irq

Success	Failures	Total	Runtime
8629	0	8629	10m:39s

Artifacts

Documentation preview

When using level triggered IRQs, a new IRQ flag may already have been set while the IRQ callback is executed. Hence, we cannot just toggle the output, but rather should drive it low/high for a level trigger on high/low. Also test `gpio_ll_query_conf()` for the disconnected state as well.

maribu · 2024-01-21T17:31:30Z

Rebased on master, test still succeeds:

git:(cpu/sam0_common/periph_gpio_ll) ~/Repos/software/RIOT/gpio_ll_sam0 ➜ make BOARD=samr21-xpro -C tests/periph/gpio_ll flash test-with-config 
make: Entering directory '/home/maribu/Repos/software/RIOT/gpio_ll_sam0/tests/periph/gpio_ll'
Building application "tests_gpio_ll" for "samr21-xpro" with MCU "samd21".

"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/pkg/cmsis/ 
"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/boards/common/init
"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/boards/samr21-xpro
"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/core
"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/core/lib
"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/cpu/samd21
"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/cpu/cortexm_common
"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/cpu/cortexm_common/periph
"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/cpu/sam0_common
"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/cpu/sam0_common/periph
"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/cpu/samd21/periph
"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/cpu/samd21/vectors
"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/drivers
"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/drivers/periph_common
"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/sys
"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/sys/auto_init
"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/sys/div
"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/sys/frac
"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/sys/isrpipe
"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/sys/libc
"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/sys/malloc_thread_safe
"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/sys/newlib_syscalls_default
"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/sys/pm_layered
"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/sys/preprocessor
"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/sys/stdio_uart
"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/sys/test_utils/interactive_sync
"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/sys/test_utils/print_stack_usage
"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/sys/tsrb
"make" -C /home/maribu/Repos/software/RIOT/gpio_ll_sam0/sys/ztimer
   text	  data	   bss	   dec	   hex	filename
  21204	   176	  2708	 24088	  5e18	/home/maribu/Repos/software/RIOT/gpio_ll_sam0/tests/periph/gpio_ll/bin/samr21-xpro/tests_gpio_ll.elf
/home/maribu/Repos/software/RIOT/gpio_ll_sam0/dist/tools/edbg/edbg.sh flash /home/maribu/Repos/software/RIOT/gpio_ll_sam0/tests/periph/gpio_ll/bin/samr21-xpro/tests_gpio_ll.bin
### Flashing Target ###
Debugger: ATMEL EDBG CMSIS-DAP ATML2127031800009225 03.25.01B6 (S)
Clock frequency: 16.0 MHz
Target: SAM R21G18 (Rev C)
Verification...
at address 0x4 expected 0x6d, read 0x5d
Error: verification failed
Debugger: ATMEL EDBG CMSIS-DAP ATML2127031800009225 03.25.01B6 (S)
Clock frequency: 16.0 MHz
Target: SAM R21G18 (Rev C)
Programming...... done.
Verification...... done.
Done flashing
r
/home/maribu/Repos/software/RIOT/gpio_ll_sam0/dist/tools/pyterm/pyterm -p "/dev/ttyACM0" -b "115200" --no-reconnect --noprefix --no-repeat-command-on-empty-line 
Connect to serial port /dev/ttyACM0
Welcome to pyterm!
Type '/exit' to exit.
Y
 ��%���������х������������ɥ�сJсJ́�����READY
s
START
main(): This is RIOT! (Version: 2024.01-devel-659-g67b381-cpu/sam0_common/periph_gpio_ll)
Test / Hardware Details:
========================
Cabling:
(INPUT -- OUTPUT)
  P1.2 (PB2) -- P0.14 (PA14)
  P1.23 (PB23) -- P0.8 (PA8)
Number of pull resistor values supported: 1
Number of drive strengths supported: 2
Number of slew rates supported: 1
Valid GPIO ports:
- PORT 0 (PORT A)
- PORT 1 (PORT B)
- PORT 2 (PORT C)

Testing gpio_port_pack_addr()
=============================

All OK

Testing gpip_ng_init()
======================

Testing is_gpio_port_num_valid() is true for PORT_OUT and PORT_IN:

Testing input configurations for PIN_IN_0:
Support for input with pull up: yes
state: in, pull: up, value: on, drive: weak
Support for input with pull down: yes
state: in, pull: down, value: off, drive: weak
Support for input with pull to bus level: no
Support for floating input (no pull resistors): yes
state: in, pull: none, value: off, drive: weak

Testing output configurations for PIN_OUT_0:
Support for output (push-pull) with initial value of LOW: yes
state: out-pp, value: off, drive: weak
Output is indeed LOW: yes
state: out-pp, value: on, drive: weak
Output can be pushed HIGH: yes
Support for output (push-pull) with initial value of HIGH: yes
state: out-pp, value: on, drive: weak
Output is indeed HIGH: yes
Support for output (open drain with pull up) with initial value of LOW: no
Support for output (open drain with pull up) with initial value of HIGH: no
Support for output (open drain) with initial value of LOW: no
Support for output (open drain) with initial value of HIGH: no
Support for output (open source) with initial value of LOW: no
Support for output (open source) with initial value of HIGH: no
Support for output (open source with pull up) with initial value of HIGH: no
Support for output (open source with pull up) with initial value of LOW: no
Support for disconnecting GPIO: yes
state: off, pull: none, value: off, drive: weak
Output can indeed be pulled LOW: yes
Output can indeed be pulled HIGH: yes

Testing Reading/Writing GPIO Ports
==================================

testing initial value of 0 after init
...OK
testing setting both outputs_optional simultaneously
...OK
testing clearing both outputs_optional simultaneously
...OK
testing toggling first output (0 --> 1)
...OK
testing toggling first output (1 --> 0)
...OK
testing toggling second output (0 --> 1)
...OK
testing toggling second output (1 --> 0)
...OK
testing setting first output and clearing second with write
...OK
testing setting second output and clearing first with write
...OK
All input/output operations worked as expected

Testing External IRQs
=====================

Testing rising edge on PIN_IN_0
... OK
Testing falling edge on PIN_IN_0
... OK
Testing both edges on PIN_IN_0
... OK
Testing masking of IRQs (still both edges on PIN_IN_0)
... OK
Testing level-triggered on HIGH on PIN_IN_0 (when input is LOW when setting up IRQ)
... OK
Testing level-triggered on HIGH on PIN_IN_0 (when input is HIGH when setting up IRQ)
... OK
Testing level-triggered on LOW on PIN_IN_0 (when input is HIGH when setting up IRQ)
... OK
Testing level-triggered on LOW on PIN_IN_0 (when input is LOW when setting up IRQ)
... OK


TEST SUCCEEDED

make: Leaving directory '/home/maribu/Repos/software/RIOT/gpio_ll_sam0/tests/periph/gpio_ll'

benpicco · 2024-01-22T11:57:42Z

I tried this on saml10-xpro with

PORT_IN=0
PORT_OUT=0
PIN_IN_0=2
PIN_OUT_0=3
PIN_IN_1=21
PIN_OUT_1=10

and I get

024-01-22 12:55:00,579 # main(): This is RIOT! (Version: 2024.01-devel-659-g67b381-HEAD)
2024-01-22 12:55:00,581 # Test / Hardware Details:
2024-01-22 12:55:00,584 # ========================
2024-01-22 12:55:00,584 # Cabling:
2024-01-22 12:55:00,586 # (INPUT -- OUTPUT)
2024-01-22 12:55:00,589 #   P0.2 (PA2) -- P0.3 (PA3)
2024-01-22 12:55:00,592 #   P0.21 (PA21) -- P0.10 (PA10)
2024-01-22 12:55:00,596 # Number of pull resistor values supported: 1
2024-01-22 12:55:00,600 # Number of drive strengths supported: 2
2024-01-22 12:55:00,603 # Number of slew rates supported: 1
2024-01-22 12:55:00,604 # Valid GPIO ports:
2024-01-22 12:55:00,606 # - PORT 0 (PORT A)
2024-01-22 12:55:00,606 # 
2024-01-22 12:55:00,609 # Testing gpio_port_pack_addr()
2024-01-22 12:55:00,612 # =============================
2024-01-22 12:55:00,612 # 
2024-01-22 12:55:00,612 # All OK
2024-01-22 12:55:00,613 # 
2024-01-22 12:55:00,615 # Testing gpip_ng_init()
2024-01-22 12:55:00,617 # ======================
2024-01-22 12:55:00,617 # 
2024-01-22 12:55:00,623 # Testing is_gpio_port_num_valid() is true for PORT_OUT and PORT_IN:
2024-01-22 12:55:00,623 # 
2024-01-22 12:55:00,627 # Testing input configurations for PIN_IN_0:
2024-01-22 12:55:00,630 # Support for input with pull up: yes
2024-01-22 12:55:00,634 # state: in, pull: up, value: on, drive: weak
2024-01-22 12:55:00,637 # Support for input with pull down: yes
2024-01-22 12:55:00,642 # state: in, pull: down, value: off, drive: weak
2024-01-22 12:55:00,646 # Support for input with pull to bus level: no
2024-01-22 12:55:00,650 # Support for floating input (no pull resistors): yes
2024-01-22 12:55:00,655 # state: in, pull: none, value: off, drive: weak
2024-01-22 12:55:00,655 # 
2024-01-22 12:55:00,659 # Testing output configurations for PIN_OUT_0:
2024-01-22 12:55:00,664 # Support for output (push-pull) with initial value of LOW: yes
2024-01-22 12:55:00,668 # state: out-pp, value: off, drive: weak
2024-01-22 12:55:00,671 # Output is indeed LOW: yes
2024-01-22 12:55:00,675 # state: out-pp, value: on, drive: weak
2024-01-22 12:55:00,679 # Output can be pushed HIGH: yes
2024-01-22 12:55:00,684 # Support for output (push-pull) with initial value of HIGH: yes
2024-01-22 12:55:00,688 # state: out-pp, value: on, drive: weak
2024-01-22 12:55:00,691 # Output is indeed HIGH: yes
2024-01-22 12:55:00,698 # Support for output (open drain with pull up) with initial value of LOW: no
2024-01-22 12:55:00,705 # Support for output (open drain with pull up) with initial value of HIGH: no
2024-01-22 12:55:00,711 # Support for output (open drain) with initial value of LOW: no
2024-01-22 12:55:00,716 # Support for output (open drain) with initial value of HIGH: no
2024-01-22 12:55:00,722 # Support for output (open source) with initial value of LOW: no
2024-01-22 12:55:00,728 # Support for output (open source) with initial value of HIGH: no
2024-01-22 12:55:00,735 # Support for output (open source with pull up) with initial value of HIGH: no
2024-01-22 12:55:00,742 # Support for output (open source with pull up) with initial value of LOW: no
2024-01-22 12:55:00,745 # Support for disconnecting GPIO: yes
2024-01-22 12:55:00,750 # state: off, pull: none, value: off, drive: weak
2024-01-22 12:55:00,754 # Output can indeed be pulled LOW: yes
2024-01-22 12:55:00,759 # Output can indeed be pulled HIGH: yes
2024-01-22 12:55:00,759 # 
2024-01-22 12:55:00,762 # Testing Reading/Writing GPIO Ports
2024-01-22 12:55:00,765 # ==================================
2024-01-22 12:55:00,765 # 
2024-01-22 12:55:00,768 # testing initial value of 0 after init
2024-01-22 12:55:00,770 # ...OK
2024-01-22 12:55:00,775 # testing setting both outputs_optional simultaneously
2024-01-22 12:55:00,778 # expect failed at line 526

maribu · 2024-01-22T12:23:45Z

PA21 seems to be connected to EDBG_ADC0, PA10 to DGI_GPIO2, and PA3 to EDBG_CDC_USART_RX.

Could you try it again with other GPIOs?

benpicco · 2024-01-22T12:29:55Z

Ah indeed, works with PA04/05, PA14/15

benpicco · 2024-01-22T13:24:02Z

I get a different failure on same54-xpro though with

PORT_IN=1
PORT_OUT=3
PIN_IN_0=14
PIN_OUT_0=0
PIN_IN_1=15
PIN_OUT_1=9

2024-01-22 14:21:11,080 # main(): This is RIOT! (Version: 2024.01-devel-659-g67b381-HEAD)
2024-01-22 14:21:11,082 # Test / Hardware Details:
2024-01-22 14:21:11,085 # ========================
2024-01-22 14:21:11,085 # Cabling:
2024-01-22 14:21:11,087 # (INPUT -- OUTPUT)
2024-01-22 14:21:11,090 #   P1.14 (PB14) -- P3.0 (PD0)
2024-01-22 14:21:11,092 #   P1.15 (PB15) -- P3.9 (PD9)
2024-01-22 14:21:11,096 # Number of pull resistor values supported: 1
2024-01-22 14:21:11,099 # Number of drive strengths supported: 2
2024-01-22 14:21:11,102 # Number of slew rates supported: 1
2024-01-22 14:21:11,104 # Valid GPIO ports:
2024-01-22 14:21:11,105 # - PORT 0 (PORT A)
2024-01-22 14:21:11,107 # - PORT 1 (PORT B)
2024-01-22 14:21:11,109 # - PORT 2 (PORT C)
2024-01-22 14:21:11,110 # - PORT 3 (PORT D)
2024-01-22 14:21:11,110 # 
2024-01-22 14:21:11,113 # Testing gpio_port_pack_addr()
2024-01-22 14:21:11,116 # =============================
2024-01-22 14:21:11,116 # 
2024-01-22 14:21:11,116 # All OK
2024-01-22 14:21:11,116 # 
2024-01-22 14:21:11,118 # Testing gpip_ng_init()
2024-01-22 14:21:11,120 # ======================
2024-01-22 14:21:11,120 # 
2024-01-22 14:21:11,126 # Testing is_gpio_port_num_valid() is true for PORT_OUT and PORT_IN:
2024-01-22 14:21:11,127 # 
2024-01-22 14:21:11,130 # Testing input configurations for PIN_IN_0:
2024-01-22 14:21:11,133 # Support for input with pull up: yes
2024-01-22 14:21:11,137 # state: in, pull: up, value: on, drive: weak
2024-01-22 14:21:11,140 # Support for input with pull down: yes
2024-01-22 14:21:11,144 # state: in, pull: down, value: off, drive: weak
2024-01-22 14:21:11,148 # Support for input with pull to bus level: no
2024-01-22 14:21:11,153 # Support for floating input (no pull resistors): yes
2024-01-22 14:21:11,157 # state: in, pull: none, value: off, drive: weak
2024-01-22 14:21:11,157 # 
2024-01-22 14:21:11,161 # Testing output configurations for PIN_OUT_0:
2024-01-22 14:21:11,166 # Support for output (push-pull) with initial value of LOW: yes
2024-01-22 14:21:11,170 # state: out-pp, value: off, drive: weak
2024-01-22 14:21:11,173 # Output is indeed LOW: yes
2024-01-22 14:21:11,176 # state: out-pp, value: on, drive: weak
2024-01-22 14:21:11,180 # Output can be pushed HIGH: yes
2024-01-22 14:21:11,186 # Support for output (push-pull) with initial value of HIGH: yes
2024-01-22 14:21:11,189 # state: out-pp, value: on, drive: weak
2024-01-22 14:21:11,192 # Output is indeed HIGH: yes
2024-01-22 14:21:11,199 # Support for output (open drain with pull up) with initial value of LOW: no
2024-01-22 14:21:11,205 # Support for output (open drain with pull up) with initial value of HIGH: no
2024-01-22 14:21:11,211 # Support for output (open drain) with initial value of LOW: no
2024-01-22 14:21:11,216 # Support for output (open drain) with initial value of HIGH: no
2024-01-22 14:21:11,222 # Support for output (open source) with initial value of LOW: no
2024-01-22 14:21:11,227 # Support for output (open source) with initial value of HIGH: no
2024-01-22 14:21:11,234 # Support for output (open source with pull up) with initial value of HIGH: no
2024-01-22 14:21:11,241 # Support for output (open source with pull up) with initial value of LOW: no
2024-01-22 14:21:11,244 # Support for disconnecting GPIO: yes
2024-01-22 14:21:11,248 # state: off, pull: none, value: off, drive: weak
2024-01-22 14:21:11,252 # Output can indeed be pulled LOW: yes
2024-01-22 14:21:11,257 # Output can indeed be pulled HIGH: yes
2024-01-22 14:21:11,257 # 
2024-01-22 14:21:11,260 # Testing Reading/Writing GPIO Ports
2024-01-22 14:21:11,263 # ==================================
2024-01-22 14:21:11,263 # 
2024-01-22 14:21:11,266 # testing initial value of 0 after init
2024-01-22 14:21:11,268 # ...OK
2024-01-22 14:21:11,272 # testing setting both outputs_optional simultaneously
2024-01-22 14:21:11,274 # ...OK
2024-01-22 14:21:11,279 # testing clearing both outputs_optional simultaneously
2024-01-22 14:21:11,280 # ...OK
2024-01-22 14:21:11,284 # testing toggling first output (0 --> 1)
2024-01-22 14:21:11,285 # ...OK
2024-01-22 14:21:11,289 # testing toggling first output (1 --> 0)
2024-01-22 14:21:11,290 # ...OK
2024-01-22 14:21:11,294 # testing toggling second output (0 --> 1)
2024-01-22 14:21:11,295 # ...OK
2024-01-22 14:21:11,299 # testing toggling second output (1 --> 0)
2024-01-22 14:21:11,300 # ...OK
2024-01-22 14:21:11,306 # testing setting first output and clearing second with write
2024-01-22 14:21:11,307 # ...OK
2024-01-22 14:21:11,312 # testing setting second output and clearing first with write
2024-01-22 14:21:11,313 # ...OK
2024-01-22 14:21:11,317 # All input/output operations worked as expected
2024-01-22 14:21:11,317 # 
2024-01-22 14:21:11,319 # Testing External IRQs
2024-01-22 14:21:11,321 # =====================
2024-01-22 14:21:11,321 # 
2024-01-22 14:21:11,324 # Testing rising edge on PIN_IN_0
2024-01-22 14:21:11,327 # ... OK
2024-01-22 14:21:11,330 # Testing falling edge on PIN_IN_0
2024-01-22 14:21:11,334 # ... OK
2024-01-22 14:21:11,337 # Testing both edges on PIN_IN_0
2024-01-22 14:21:11,340 # ... OK
2024-01-22 14:21:11,345 # Testing masking of IRQs (still both edges on PIN_IN_0)
2024-01-22 14:21:11,348 # expect failed at line 661

cpu/sam0_common/include/gpio_ll_arch.h

cpu/sam0_common/periph/gpio_ll.c

benpicco · 2024-01-22T13:29:10Z

cpu/sam0_common/periph/gpio_ll_irq.c

+{
+    if (port_num >= ARRAY_SIZE(exti_config)) {
+        return -1;
+    }


Can this be an assert()?

The call sites of get_exti_num() actually do:

assume((unsigned)exti_num < IRQS_NUMOF);

That should cover this as well, but also gives the compiler information about what values are to be expected within exti_config.

maribu · 2024-01-22T14:29:08Z

I get a different failure on same54-xpro though

Good catch! That would have been a nasty race condition bug that could have caused lots of pain and tears.

For me it now works correctly.

benpicco

Please squash

Co-authored-by: benpicco <benpicco@googlemail.com>

maribu · 2024-01-22T18:32:30Z

Thx :)

maribu · 2024-01-23T08:51:14Z

Improving the test in 891c627 had the side effect that lots of boards now fail the test 😅

(But the issues it detects are indeed very real.)

maribu added State: WIP State: The PR is still work-in-progress and its code is not in its final presentable form yet CI: ready for build If set, CI server will compile all applications for all available boards for the labeled PR labels Dec 15, 2023

maribu requested review from leandrolanzieri, jia200x, MrKevinWeiss, smlng, aabadie, MichelRottleuthner, fjmolinas, benpicco, dylad and keestux as code owners December 15, 2023 13:10

github-actions bot added Platform: ARM Platform: This PR/issue effects ARM-based platforms Area: tests Area: tests and testing framework Area: cpu Area: CPU/MCU ports Area: Kconfig Area: Kconfig integration labels Dec 15, 2023

maribu force-pushed the cpu/sam0_common/periph_gpio_ll branch from 5552b4d to c939c63 Compare December 15, 2023 13:23

maribu force-pushed the cpu/sam0_common/periph_gpio_ll branch from c939c63 to 06c2d95 Compare January 19, 2024 14:59

maribu requested review from vincent-d, gschorcht, basilfx and kYc0o as code owners January 19, 2024 14:59

github-actions bot added Platform: AVR Platform: This PR/issue effects AVR-based platforms Area: drivers Area: Device drivers Platform: ESP Platform: This PR/issue effects ESP-based platforms labels Jan 19, 2024

maribu added the State: waiting for other PR State: The PR requires another PR to be merged first label Jan 19, 2024

maribu force-pushed the cpu/sam0_common/periph_gpio_ll branch from 06c2d95 to 67b3815 Compare January 21, 2024 17:30

github-actions bot removed the Platform: AVR Platform: This PR/issue effects AVR-based platforms label Jan 21, 2024

github-actions bot removed Area: drivers Area: Device drivers Platform: ESP Platform: This PR/issue effects ESP-based platforms labels Jan 21, 2024

maribu removed State: WIP State: The PR is still work-in-progress and its code is not in its final presentable form yet State: waiting for other PR State: The PR requires another PR to be merged first labels Jan 21, 2024

benpicco reviewed Jan 22, 2024

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benpicco approved these changes Jan 22, 2024

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maribu and others added 2 commits January 22, 2024 16:28

cpu/sam0_common: Implement periph_gpio_ll

8557565

Co-authored-by: benpicco <benpicco@googlemail.com>

cpu/sam0_common: implement periph_gpio_ll_irq

1484d30

Co-authored-by: benpicco <benpicco@googlemail.com>

maribu force-pushed the cpu/sam0_common/periph_gpio_ll branch from cdc840e to 1484d30 Compare January 22, 2024 15:28

maribu enabled auto-merge January 22, 2024 15:37

maribu added this pull request to the merge queue Jan 22, 2024

Merged via the queue into RIOT-OS:master with commit 3159578 Jan 22, 2024
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maribu deleted the cpu/sam0_common/periph_gpio_ll branch January 22, 2024 18:32

maribu mentioned this pull request Jan 23, 2024

drivers/periph_gpio_ll: Fix GPIO_DISCONNECT handling and add compile time feature checks #20290

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cpu/sam0_common: implement periph_gpio_ll and periph_gpio_ll_irq #20189

cpu/sam0_common: implement periph_gpio_ll and periph_gpio_ll_irq #20189

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cpu/sam0_common: implement periph_gpio_ll and periph_gpio_ll_irq #20189

cpu/sam0_common: implement periph_gpio_ll and periph_gpio_ll_irq #20189

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