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https://github.com/RIOT-OS/RIOT.git
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dd585f9e9d
- `gpio_ll_toggle()` now is race-free
- avoid using a look up table but branch to the two different registers
in the `gpio_ll*()` functions
- in most cases the GPIO port is a compile time constant and the
dead branch is eliminated by the optimizer, making this vastly
more efficient
- some MCUs do only have a single port, in which case
`GPIO_PORT_NUM(port)` is known to return `0` even if `port` is
not known, resulting in one of the branch being eliminated as
dead branch no matter what
- in case it really is unknown at compile time which port to work
on, the branch can still be implemented efficiently by the
compiler e.g. using a conditional move; likely more efficient
than fetching a value from the look up table.
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|---|---|---|
| .. | ||
| adc_arch_esp32.c | ||
| adc_arch_esp32c3.c | ||
| adc_arch_esp32s2.c | ||
| adc_arch_esp32s3.c | ||
| adc.c | ||
| can.c | ||
| cpuid.c | ||
| dac.c | ||
| flashpage.c | ||
| gpio_arch_esp32.c | ||
| gpio_arch_esp32c3.c | ||
| gpio_arch_esp32s2.c | ||
| gpio_arch_esp32s3.c | ||
| gpio_ll_irq.c | ||
| gpio_ll.c | ||
| gpio.c | ||
| hwrng.c | ||
| i2c_hw.c | ||
| Kconfig | ||
| Makefile | ||
| pm.c | ||
| pwm.c | ||
| rtt_hw_rtc.c | ||
| rtt_hw_sys.c | ||
| rtt.c | ||
| sdmmc.c | ||
| spi.c | ||
| timer.c | ||