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mirror of https://github.com/RIOT-OS/RIOT.git synced 2024-12-29 04:50:03 +01:00
RIOT/tests/periph
Marian Buschsieweke 36e8526046
drivers/periph_gpio_ll: change API to access GPIO ports
The API was based on the assumption that GPIO ports are mapped in memory
sanely, so that a `GPIO_PORT(num)` macro would work allow for constant
folding when `num` is known and still be efficient when it is not.

Some MCUs, however, will need a look up tables to efficiently translate
GPIO port numbers to the port's base address. This will prevent the use
of such a `GPIO_PORT(num)` macro in constant initializers.

As a result, we rather provide `GPIO_PORT_0`, `GPIO_PORT_1`, etc. macros
for each GPIO port present (regardless of MCU naming scheme), as well as
`GPIO_PORT_A`, `GPIO_PORT_B`, etc. macros if (and only if) the MCU port
naming scheme uses letters rather than numbers.

These can be defined as macros to the peripheral base address even when
those are randomly mapped into the address space. In addition, a C
function `gpio_port()` replaces the role of the `GPIO_PORT()` and
`gpio_port_num()` the `GPIO_PORT_NUM()` macro. Those functions will
still be implemented as efficient as possible and will allow constant
folding where it was formerly possible. Hence, there is no downside for
MCUs with sane peripheral memory mapping, but it is highly beneficial
for the crazy ones.

There are also two benefits for the non-crazy MCUs:
1. We can now test for valid port numbers with `#ifdef GPIO_PORT_<NUM>`
    - This directly benefits the test in `tests/periph/gpio_ll`, which
      can now provide a valid GPIO port for each and every board
    - Writing to invalid memory mapped I/O addresses was treated as
      triggering undefined behavior by the compiler and used as a
      optimization opportunity
2. We can now detect at compile time if the naming scheme of the MCU
   uses letters or numbers, and produce more user friendly output.
    - This is directly applied in the test app
2024-08-02 09:55:24 +02:00
..
adc *app.config.test*: Remove kconfig dep files 2024-03-26 14:53:35 +01:00
adc_continuous periph/adc_continous: add test for ADC continous API 2023-11-10 12:10:49 +01:00
backup_ram *Kconfig*: Remove dep-only Kconfig files 2024-03-26 14:54:22 +01:00
cpuid *app.config.test*: Remove kconfig dep files 2024-03-26 14:53:35 +01:00
dac *app.config.test*: Remove kconfig dep files 2024-03-26 14:53:35 +01:00
dma *app.config.test*: Remove kconfig dep files 2024-03-26 14:53:35 +01:00
eeprom *app.config.test*: Remove kconfig dep files 2024-03-26 14:53:35 +01:00
flashpage tests/periph/flashpage: make mtd_raw write bytes instead of ASCII 2024-05-06 17:48:00 +02:00
flashpage_unittest *app.config.test*: Remove kconfig dep files 2024-03-26 14:53:35 +01:00
fmc *Kconfig*: Remove dep-only Kconfig files 2024-03-26 14:54:22 +01:00
freqm tests/periph: add test-application for peripheral freqm 2023-11-23 20:53:14 +01:00
gpio tests/*: Remove TEST_KCONFIG symbols 2024-03-27 10:28:14 +01:00
gpio_arduino *app.config.test*: Remove kconfig dep files 2024-03-26 14:53:35 +01:00
gpio_ll drivers/periph_gpio_ll: change API to access GPIO ports 2024-08-02 09:55:24 +02:00
hwrng tests/periph/hwrng: LIMIT -> NUM_BYTES 2024-05-29 14:20:49 +02:00
i2c *Kconfig*: Remove dep-only Kconfig files 2024-03-26 14:54:22 +01:00
ltdc tests: move periph_ applications to periphs subdirectory 2023-05-06 15:29:51 +02:00
pio *Kconfig*: Remove dep-only Kconfig files 2024-03-26 14:54:22 +01:00
pm *Kconfig*: Remove dep-only Kconfig files 2024-03-26 14:54:22 +01:00
ptp_clock tests: move periph_ applications to periphs subdirectory 2023-05-06 15:29:51 +02:00
ptp_timer tests: move periph_ applications to periphs subdirectory 2023-05-06 15:29:51 +02:00
pwm *app.config.test*: Remove kconfig dep files 2024-03-26 14:53:35 +01:00
qdec *Kconfig*: Modify Kconfig to remove dep model 2024-03-27 10:28:12 +01:00
rtc *Kconfig*: Remove dep-only Kconfig files 2024-03-26 14:54:22 +01:00
rtt *Kconfig*: Remove dep-only Kconfig files 2024-03-26 14:54:22 +01:00
rtt_min *app.config.test*: Remove kconfig dep files 2024-03-26 14:53:35 +01:00
selftest_shield makefiles, treewide: Remove MCU variable 2024-02-18 20:46:09 +01:00
spi *Kconfig*: Remove dep-only Kconfig files 2024-03-26 14:54:22 +01:00
spi_dma *Kconfig*: Remove dep-only Kconfig files 2024-03-26 14:54:22 +01:00
timer tests/periph/timer: also test for idx out of range 2024-04-14 20:22:38 +02:00
timer_periodic *app.config.test*: Remove kconfig dep files 2024-03-26 14:53:35 +01:00
timer_short_relative_set *app.config.test*: Remove kconfig dep files 2024-03-26 14:53:35 +01:00
uart tests/periph/uart: clean up and add power off cmd 2024-05-07 14:45:49 +02:00
uart_locate_pins tests/periph/uart_locate_pins: new test/utility app 2024-01-18 10:42:13 +01:00
uart_mode *app.config.test*: Remove kconfig dep files 2024-03-26 14:53:35 +01:00
uart_nonblocking *app.config.test*: Remove kconfig dep files 2024-03-26 14:53:35 +01:00
vbat *app.config.test*: Remove kconfig dep files 2024-03-26 14:53:35 +01:00
wdt *app.config.test*: Remove kconfig dep files 2024-03-26 14:53:35 +01:00
Makefile.periph_common tests: move periph_ applications to periphs subdirectory 2023-05-06 15:29:51 +02:00