diff options
| author | Damien George <damien@micropython.org> | 2024-01-10 16:08:45 +1100 |
|---|---|---|
| committer | Damien George <damien@micropython.org> | 2025-04-09 00:22:32 +1000 |
| commit | 975f84f2adc1f89b4c9349b6a6e83f6bc4ec2fd6 (patch) | |
| tree | 5fcfe80d1f948cea395a89a1e406360d69b0fc7d | |
| parent | 40ff0c2f276883ea325ce8977453bd16a2f2029a (diff) | |
alif/mphalport: Enable efficient events and implement quiet timing.
Signed-off-by: Damien George <damien@micropython.org>
| -rw-r--r-- | ports/alif/mphalport.c | 12 | ||||
| -rw-r--r-- | ports/alif/mphalport.h | 13 |
2 files changed, 14 insertions, 11 deletions
diff --git a/ports/alif/mphalport.c b/ports/alif/mphalport.c index abb71aae6..8d0fa1b92 100644 --- a/ports/alif/mphalport.c +++ b/ports/alif/mphalport.c @@ -133,10 +133,14 @@ void mp_hal_delay_us(mp_uint_t us) { void mp_hal_delay_ms(mp_uint_t ms) { uint32_t t0 = mp_hal_ticks_ms(); - do { - // TODO: power saving wait - mp_event_handle_nowait(); - } while (mp_hal_ticks_ms() - t0 < ms); + mp_event_handle_nowait(); + for (;;) { + uint32_t t1 = mp_hal_ticks_ms(); + if (t1 - t0 >= ms) { + break; + } + mp_event_wait_ms(ms - (t1 - t0)); + } } uint64_t mp_hal_time_ns(void) { diff --git a/ports/alif/mphalport.h b/ports/alif/mphalport.h index 1b8c854fd..8098c2650 100644 --- a/ports/alif/mphalport.h +++ b/ports/alif/mphalport.h @@ -27,6 +27,7 @@ #include "py/ringbuf.h" #include "shared/runtime/interrupt_char.h" #include "irq.h" +#include "system_tick.h" #include ALIF_CMSIS_H #define MICROPY_BEGIN_ATOMIC_SECTION() disable_irq() @@ -47,8 +48,7 @@ if ((TIMEOUT_MS) < 0) { \ __WFE(); \ } else { \ - /* TODO */ \ - __WFE(); \ + system_tick_wfe_with_timeout_us(TIMEOUT_MS * 1000); \ } \ } while (0) @@ -57,13 +57,12 @@ (SCB_CleanDCache_by_Addr((uint32_t *)((uint32_t)addr & ~0x1f), \ ((uint32_t)((uint8_t *)addr + size + 0x1f) & ~0x1f) - ((uint32_t)addr & ~0x1f))) -extern ringbuf_t stdin_ringbuf; - -// TODO -#define mp_hal_quiet_timing_enter() 0 -#define mp_hal_quiet_timing_exit(x) (void)x +#define mp_hal_quiet_timing_enter() raise_irq_pri(IRQ_PRI_QUIET_TIMING) +#define mp_hal_quiet_timing_exit(irq_state) restore_irq_pri(irq_state) #define mp_hal_delay_us_fast mp_hal_delay_us +extern ringbuf_t stdin_ringbuf; + /******************************************************************************/ // C-level pin HAL |