ports/psoc6: Adding code for machine.Signal functionality.

Signed-off-by: NikhitaR-IFX <Nikhita.Rajasekhar@infineon.com>
Infineon · Oct 17, 2023 · 325fe02 · 325fe02
1 parent 94477cb
commit 325fe02
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diff --git a/docs/psoc6/quickref.rst b/docs/psoc6/quickref.rst
@@ -146,6 +146,9 @@ The following constants are used to configure the pin objects in addition to the
 
  Selects the pin value.
 
+There's a higher-level abstraction :ref:`machine.Signal <machine.Signal>`
+which can be used to invert a pin. Useful for illuminating active-low LEDs
+using ``on()`` or ``value(1)``.
 
 Software I2C bus
 ----------------

diff --git a/ports/psoc6/modules/machine/machine_pin.c b/ports/psoc6/modules/machine/machine_pin.c
@@ -7,6 +7,7 @@
 #include "modmachine.h"
 #include "drivers/machine/psoc6_gpio.h"
 #include "pins.h"
+#include "extmod/virtpin.h"
 #include "mplogger.h"
 
 
@@ -326,12 +327,32 @@ STATIC const mp_rom_map_elem_t machine_pin_locals_dict_table[] = {
 };
 STATIC MP_DEFINE_CONST_DICT(machine_pin_locals_dict, machine_pin_locals_dict_table);
 
+STATIC mp_uint_t pin_ioctl(mp_obj_t self_in, mp_uint_t request, uintptr_t arg, int *errcode) {
+ (void)errcode;
+ machine_pin_obj_t *self = self_in;
+ switch (request) {
+ case MP_PIN_READ: {
+ return cyhal_gpio_read(self->pin_addr);
+ }
+ case MP_PIN_WRITE: {
+ cyhal_gpio_write(self->pin_addr, arg);
+ return 0;
+ }
+ }
+ return -1;
+}
+
+STATIC const mp_pin_p_t pin_pin_p = {
+ .ioctl = pin_ioctl,
+};
+
 MP_DEFINE_CONST_OBJ_TYPE(
  machine_pin_type,
  MP_QSTR_Pin,
  MP_TYPE_FLAG_NONE,
  make_new, mp_pin_make_new,
  print, machine_pin_print,
  call, machine_pin_call,
+ protocol, &pin_pin_p,
  locals_dict, &machine_pin_locals_dict
  );
diff --git a/ports/psoc6/modules/machine/modmachine.c b/ports/psoc6/modules/machine/modmachine.c
@@ -258,6 +258,7 @@ STATIC const mp_rom_map_elem_t machine_module_globals_table[] = {
  { MP_ROM_QSTR(MP_QSTR_I2C), MP_ROM_PTR(&machine_i2c_type) },
  { MP_ROM_QSTR(MP_QSTR_SoftI2C), MP_ROM_PTR(&mp_machine_soft_i2c_type) },
  { MP_ROM_QSTR(MP_QSTR_Pin), MP_ROM_PTR(&machine_pin_type) },
+ { MP_ROM_QSTR(MP_QSTR_Signal), MP_ROM_PTR(&machine_signal_type) },
  { MP_ROM_QSTR(MP_QSTR_RTC), MP_ROM_PTR(&machine_rtc_type) },
  { MP_ROM_QSTR(MP_QSTR_PWM), MP_ROM_PTR(&machine_pwm_type) },
  { MP_ROM_QSTR(MP_QSTR_SPI), MP_ROM_PTR(&machine_spi_type) },