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zephyr/mphalport: Implement C-level pin HAL.

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Signed-off-by: Damien George <damien@micropython.org>
This commit is contained in:
Damien George
2025-06-23 13:00:15 +10:00
parent 359887933c
commit 19814bf50f
3 changed files with 55 additions and 0 deletions
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1
ports/zephyr/machine_pin.c
View File

@@ -36,6 +36,7 @@
#include "py/gc.h"
#include "py/mphal.h"
#include "extmod/modmachine.h"
#include "extmod/virtpin.h"
#include "shared/runtime/mpirq.h"
#include "modmachine.h"
#include "zephyr_device.h"

8
ports/zephyr/mphalport.c
View File

@@ -26,6 +26,7 @@
#include "py/runtime.h"
#include "py/mphal.h"
#include "extmod/modmachine.h"
static struct k_poll_signal wait_signal;
static struct k_poll_event wait_events[2] = {
@@ -75,3 +76,10 @@ void mp_hal_wait_sem(struct k_sem *sem, uint32_t timeout_ms) {
}
}
}
mp_hal_pin_obj_t mp_hal_get_pin_obj(mp_obj_t pin_in) {
if (mp_obj_is_type(pin_in, &machine_pin_type)) {
return MP_OBJ_TO_PTR(pin_in);
}
mp_raise_ValueError(MP_ERROR_TEXT("invalid pin"));
}

46
ports/zephyr/mphalport.h
View File

@@ -1,4 +1,5 @@
#include <zephyr/kernel.h>
#include <zephyr/drivers/gpio.h>
#include "shared/runtime/interrupt_char.h"
#define MICROPY_BEGIN_ATOMIC_SECTION irq_lock
@@ -35,3 +36,48 @@ static inline uint64_t mp_hal_time_ns(void) {
}
#define mp_hal_delay_us_fast(us) (mp_hal_delay_us(us))
// C-level pin HAL
#include "modmachine.h"
#define MP_HAL_PIN_FMT "%u"
#define mp_hal_pin_obj_t const machine_pin_obj_t *
mp_hal_pin_obj_t mp_hal_get_pin_obj(mp_obj_t pin_in);
static inline unsigned int mp_hal_pin_name(mp_hal_pin_obj_t pin) {
// TODO make it include the port
return pin->pin;
}
static inline void mp_hal_pin_input(mp_hal_pin_obj_t pin) {
(void)gpio_pin_configure(pin->port, pin->pin, GPIO_INPUT);
}
static inline void mp_hal_pin_output(mp_hal_pin_obj_t pin) {
if (gpio_pin_configure(pin->port, pin->pin, GPIO_OUTPUT | GPIO_INPUT) == -ENOTSUP) {
// If GPIO_OUTPUT|GPIO_INPUT is not supported (eg frdm_k64f) then try just GPIO_OUTPUT.
(void)gpio_pin_configure(pin->port, pin->pin, GPIO_OUTPUT);
}
}
static inline void mp_hal_pin_open_drain(mp_hal_pin_obj_t pin) {
(void)gpio_pin_configure(pin->port, pin->pin, GPIO_OUTPUT | GPIO_INPUT | GPIO_OPEN_DRAIN);
}
static inline int mp_hal_pin_read(mp_hal_pin_obj_t pin) {
return gpio_pin_get_raw(pin->port, pin->pin);
}
static inline void mp_hal_pin_write(mp_hal_pin_obj_t pin, int v) {
(void)gpio_pin_set_raw(pin->port, pin->pin, v);
}
static inline void mp_hal_pin_od_low(mp_hal_pin_obj_t pin) {
(void)gpio_pin_set_raw(pin->port, pin->pin, 0);
}
static inline void mp_hal_pin_od_high(mp_hal_pin_obj_t pin) {
(void)gpio_pin_set_raw(pin->port, pin->pin, 1);
}