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rp2/mphalport: Add mp_hal_is_pin_reserved() function.

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As cyw43 pins might be dynamic, add a function that returns if a pin is
reserved.  This is used by `MICROPY_HW_PIN_RESERVED` to prevent the pin IRQ
from being reset across a soft-reset.

Signed-off-by: Peter Harper <peter.harper@raspberrypi.com>
This commit is contained in:
Peter Harper
2024-10-09 18:03:55 +01:00
committed by Matthias Blankertz
parent ba21be5215
commit ef5c3c043c
3 changed files with 12 additions and 1 deletions
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4
ports/rp2/boards/RPI_PICO_W/mpconfigboard.h
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@@ -20,4 +20,6 @@
#define MICROPY_HW_PIN_EXT_COUNT CYW43_WL_GPIO_COUNT #define MICROPY_HW_PIN_EXT_COUNT CYW43_WL_GPIO_COUNT
#define MICROPY_HW_PIN_RESERVED(i) ((i) == CYW43_PIN_WL_HOST_WAKE || (i) == CYW43_PIN_WL_REG_ON) // If this returns true for a pin then its irq will not be disabled on a soft reboot
int mp_hal_is_pin_reserved(int n);
#define MICROPY_HW_PIN_RESERVED(i) mp_hal_is_pin_reserved(i)

8
ports/rp2/mphalport.c
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@@ -278,3 +278,11 @@ void mp_wfe_or_timeout(uint32_t timeout_ms) {
// Clean up the timer node if it's not already // Clean up the timer node if it's not already
soft_timer_remove(&timer); soft_timer_remove(&timer);
} }
int mp_hal_is_pin_reserved(int n) {
#if MICROPY_PY_NETWORK_CYW43
return n == CYW43_PIN_WL_HOST_WAKE;
#else
return false;
#endif
}

1
ports/rp2/mphalport.h
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@@ -210,5 +210,6 @@ enum {
void mp_hal_get_mac(int idx, uint8_t buf[6]); void mp_hal_get_mac(int idx, uint8_t buf[6]);
void mp_hal_get_mac_ascii(int idx, size_t chr_off, size_t chr_len, char *dest); void mp_hal_get_mac_ascii(int idx, size_t chr_off, size_t chr_len, char *dest);
void mp_hal_generate_laa_mac(int idx, uint8_t buf[6]); void mp_hal_generate_laa_mac(int idx, uint8_t buf[6]);
int mp_hal_is_pin_reserved(int n);
#endif // MICROPY_INCLUDED_RP2_MPHALPORT_H #endif // MICROPY_INCLUDED_RP2_MPHALPORT_H