461 lines
18 KiB
C++
461 lines
18 KiB
C++
#include "libraries/breakout_ioexpander/breakout_ioexpander.hpp"
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#include <cstdio>
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#define MP_OBJ_TO_PTR2(o, t) ((t *)(uintptr_t)(o))
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// SDA/SCL on even/odd pins, I2C0/I2C1 on even/odd pairs of pins.
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#define IS_VALID_SCL(i2c, pin) (((pin) & 1) == 1 && (((pin) & 2) >> 1) == (i2c))
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#define IS_VALID_SDA(i2c, pin) (((pin) & 1) == 0 && (((pin) & 2) >> 1) == (i2c))
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using namespace pimoroni;
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extern "C" {
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#include "breakout_ioexpander.h"
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#include "pimoroni_i2c.h"
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/***** I2C Struct *****/
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typedef struct _PimoroniI2C_obj_t {
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mp_obj_base_t base;
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I2C *i2c;
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} _PimoroniI2C_obj_t;
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/***** Variables Struct *****/
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typedef struct _breakout_ioexpander_BreakoutIOExpander_obj_t {
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mp_obj_base_t base;
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BreakoutIOExpander *breakout;
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} breakout_ioexpander_BreakoutIOExpander_obj_t;
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/***** Print *****/
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void BreakoutIOExpander_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) {
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(void)kind; //Unused input parameter
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breakout_ioexpander_BreakoutIOExpander_obj_t *self = MP_OBJ_TO_PTR2(self_in, breakout_ioexpander_BreakoutIOExpander_obj_t);
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BreakoutIOExpander* breakout = self->breakout;
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mp_print_str(print, "BreakoutIOExpander(");
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mp_print_str(print, "i2c = ");
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mp_obj_print_helper(print, mp_obj_new_int((breakout->get_i2c() == i2c0) ? 0 : 1), PRINT_REPR);
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mp_print_str(print, ", address = 0x");
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char buf[3];
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sprintf(buf, "%02X", breakout->get_address());
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mp_print_str(print, buf);
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mp_print_str(print, ", sda = ");
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mp_obj_print_helper(print, mp_obj_new_int(breakout->get_sda()), PRINT_REPR);
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mp_print_str(print, ", scl = ");
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mp_obj_print_helper(print, mp_obj_new_int(breakout->get_scl()), PRINT_REPR);
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mp_print_str(print, ", int = ");
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mp_obj_print_helper(print, mp_obj_new_int(breakout->get_int()), PRINT_REPR);
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mp_print_str(print, ")");
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}
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/***** Constructor *****/
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mp_obj_t BreakoutIOExpander_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *all_args) {
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breakout_ioexpander_BreakoutIOExpander_obj_t *self = nullptr;
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enum { ARG_i2c, ARG_address, ARG_interrupt };
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static const mp_arg_t allowed_args[] = {
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{ MP_QSTR_i2c, MP_ARG_OBJ, {.u_obj = nullptr} },
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{ MP_QSTR_address, MP_ARG_INT, {.u_int = BreakoutIOExpander::DEFAULT_I2C_ADDRESS} },
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{ MP_QSTR_interrupt, MP_ARG_INT, {.u_int = PIN_UNUSED} },
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};
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// Parse args.
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mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
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mp_arg_parse_all_kw_array(n_args, n_kw, all_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
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// Get I2C bus.
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if(!MP_OBJ_IS_TYPE(args[ARG_i2c].u_obj, &PimoroniI2C_type)) {
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mp_raise_ValueError(MP_ERROR_TEXT("BreakoutIOExpander: Bad i2C object"));
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return mp_const_none;
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}
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_PimoroniI2C_obj_t *i2c = (_PimoroniI2C_obj_t *)MP_OBJ_TO_PTR(args[ARG_i2c].u_obj);
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self = m_new_obj(breakout_ioexpander_BreakoutIOExpander_obj_t);
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self->base.type = &breakout_ioexpander_BreakoutIOExpander_type;
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self->breakout = new BreakoutIOExpander(i2c->i2c, args[ARG_address].u_int, args[ARG_interrupt].u_int);
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if(!self->breakout->init()) {
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mp_raise_msg(&mp_type_RuntimeError, "BreakoutIOExpander: breakout not found when initialising");
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}
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return MP_OBJ_FROM_PTR(self);
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}
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/***** Methods *****/
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mp_obj_t BreakoutIOExpander_get_chip_id(mp_obj_t self_in) {
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breakout_ioexpander_BreakoutIOExpander_obj_t *self = MP_OBJ_TO_PTR2(self_in, breakout_ioexpander_BreakoutIOExpander_obj_t);
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return mp_obj_new_int(self->breakout->get_chip_id());
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}
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mp_obj_t BreakoutIOExpander_set_address(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
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enum { ARG_self, ARG_address };
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static const mp_arg_t allowed_args[] = {
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{ MP_QSTR_, MP_ARG_REQUIRED | MP_ARG_OBJ },
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{ MP_QSTR_address, MP_ARG_REQUIRED | MP_ARG_INT },
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};
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mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
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mp_arg_parse_all(n_args, pos_args, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
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breakout_ioexpander_BreakoutIOExpander_obj_t *self = MP_OBJ_TO_PTR2(args[ARG_self].u_obj, breakout_ioexpander_BreakoutIOExpander_obj_t);
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self->breakout->set_address(args[ARG_address].u_int);
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return mp_const_none;
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}
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mp_obj_t BreakoutIOExpander_get_adc_vref(mp_obj_t self_in) {
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breakout_ioexpander_BreakoutIOExpander_obj_t *self = MP_OBJ_TO_PTR2(self_in, breakout_ioexpander_BreakoutIOExpander_obj_t);
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return mp_obj_new_float(self->breakout->get_adc_vref());
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}
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mp_obj_t BreakoutIOExpander_set_adc_vref(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
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enum { ARG_self, ARG_vref };
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static const mp_arg_t allowed_args[] = {
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{ MP_QSTR_, MP_ARG_REQUIRED | MP_ARG_OBJ },
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{ MP_QSTR_vref, MP_ARG_REQUIRED | MP_ARG_OBJ },
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};
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mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
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mp_arg_parse_all(n_args, pos_args, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
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breakout_ioexpander_BreakoutIOExpander_obj_t *self = MP_OBJ_TO_PTR2(args[ARG_self].u_obj, breakout_ioexpander_BreakoutIOExpander_obj_t);
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float vref = mp_obj_get_float(args[ARG_vref].u_obj);
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self->breakout->set_adc_vref(vref);
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return mp_const_none;
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}
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mp_obj_t BreakoutIOExpander_enable_interrupt_out(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
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enum { ARG_self, ARG_pin_swap };
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static const mp_arg_t allowed_args[] = {
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{ MP_QSTR_, MP_ARG_REQUIRED | MP_ARG_OBJ },
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{ MP_QSTR_pin_swap, MP_ARG_BOOL, {.u_bool = false} },
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};
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mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
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mp_arg_parse_all(n_args, pos_args, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
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breakout_ioexpander_BreakoutIOExpander_obj_t *self = MP_OBJ_TO_PTR2(args[ARG_self].u_obj, breakout_ioexpander_BreakoutIOExpander_obj_t);
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bool pin_swap = args[ARG_pin_swap].u_bool;
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self->breakout->enable_interrupt_out(pin_swap);
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return mp_const_none;
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}
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mp_obj_t BreakoutIOExpander_disable_interrupt_out(mp_obj_t self_in) {
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breakout_ioexpander_BreakoutIOExpander_obj_t *self = MP_OBJ_TO_PTR2(self_in, breakout_ioexpander_BreakoutIOExpander_obj_t);
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self->breakout->disable_interrupt_out();
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return mp_const_none;
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}
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mp_obj_t BreakoutIOExpander_get_interrupt_flag(mp_obj_t self_in) {
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breakout_ioexpander_BreakoutIOExpander_obj_t *self = MP_OBJ_TO_PTR2(self_in, breakout_ioexpander_BreakoutIOExpander_obj_t);
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return mp_obj_new_bool(self->breakout->get_interrupt_flag());
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}
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mp_obj_t BreakoutIOExpander_clear_interrupt_flag(mp_obj_t self_in) {
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breakout_ioexpander_BreakoutIOExpander_obj_t *self = MP_OBJ_TO_PTR2(self_in, breakout_ioexpander_BreakoutIOExpander_obj_t);
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self->breakout->clear_interrupt_flag();
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return mp_const_none;
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}
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mp_obj_t BreakoutIOExpander_set_pin_interrupt(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
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enum { ARG_self, ARG_pin, ARG_enabled };
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static const mp_arg_t allowed_args[] = {
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{ MP_QSTR_, MP_ARG_REQUIRED | MP_ARG_OBJ },
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{ MP_QSTR_exp_pin, MP_ARG_REQUIRED | MP_ARG_INT },
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{ MP_QSTR_enabled, MP_ARG_REQUIRED | MP_ARG_BOOL },
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};
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mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
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mp_arg_parse_all(n_args, pos_args, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
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breakout_ioexpander_BreakoutIOExpander_obj_t *self = MP_OBJ_TO_PTR2(args[ARG_self].u_obj, breakout_ioexpander_BreakoutIOExpander_obj_t);
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int pin = args[ARG_pin].u_int;
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bool enabled = args[ARG_enabled].u_bool;
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if(!self->breakout->set_pin_interrupt(pin, enabled)) {
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mp_raise_ValueError("pin out of range. Expected 1 to 14");
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}
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return mp_const_none;
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}
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mp_obj_t BreakoutIOExpander_pwm_load(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
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enum { ARG_self, ARG_wait_for_load };
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static const mp_arg_t allowed_args[] = {
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{ MP_QSTR_, MP_ARG_REQUIRED | MP_ARG_OBJ },
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{ MP_QSTR_wait_for_load, MP_ARG_BOOL, {.u_bool = true} },
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};
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mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
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mp_arg_parse_all(n_args, pos_args, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
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breakout_ioexpander_BreakoutIOExpander_obj_t *self = MP_OBJ_TO_PTR2(args[ARG_self].u_obj, breakout_ioexpander_BreakoutIOExpander_obj_t);
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bool wait_for_load = args[ARG_wait_for_load].u_bool;
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self->breakout->pwm_load(wait_for_load);
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return mp_const_none;
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}
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mp_obj_t BreakoutIOExpander_pwm_loading(mp_obj_t self_in) {
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breakout_ioexpander_BreakoutIOExpander_obj_t *self = MP_OBJ_TO_PTR2(self_in, breakout_ioexpander_BreakoutIOExpander_obj_t);
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return mp_obj_new_bool(self->breakout->pwm_loading());
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}
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mp_obj_t BreakoutIOExpander_pwm_clear(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
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enum { ARG_self, ARG_wait_for_clear };
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static const mp_arg_t allowed_args[] = {
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{ MP_QSTR_, MP_ARG_REQUIRED | MP_ARG_OBJ },
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{ MP_QSTR_wait_for_clear, MP_ARG_BOOL, {.u_bool = true} },
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};
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mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
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mp_arg_parse_all(n_args, pos_args, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
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breakout_ioexpander_BreakoutIOExpander_obj_t *self = MP_OBJ_TO_PTR2(args[ARG_self].u_obj, breakout_ioexpander_BreakoutIOExpander_obj_t);
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bool wait_for_clear = args[ARG_wait_for_clear].u_bool;
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self->breakout->pwm_clear(wait_for_clear);
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return mp_const_none;
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}
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mp_obj_t BreakoutIOExpander_pwm_clearing(mp_obj_t self_in) {
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breakout_ioexpander_BreakoutIOExpander_obj_t *self = MP_OBJ_TO_PTR2(self_in, breakout_ioexpander_BreakoutIOExpander_obj_t);
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return mp_obj_new_bool(self->breakout->pwm_clearing());
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}
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mp_obj_t BreakoutIOExpander_set_pwm_control(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
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enum { ARG_self, ARG_divider };
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static const mp_arg_t allowed_args[] = {
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{ MP_QSTR_, MP_ARG_REQUIRED | MP_ARG_OBJ },
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{ MP_QSTR_divider, MP_ARG_REQUIRED | MP_ARG_INT },
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};
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mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
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mp_arg_parse_all(n_args, pos_args, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
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breakout_ioexpander_BreakoutIOExpander_obj_t *self = MP_OBJ_TO_PTR2(args[ARG_self].u_obj, breakout_ioexpander_BreakoutIOExpander_obj_t);
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int divider = args[ARG_divider].u_int;
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if(!self->breakout->set_pwm_control(divider)) {
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mp_raise_ValueError("divider not valid. Available options are: 1, 2, 4, 8, 16, 32, 64, 128");
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}
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return mp_const_none;
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}
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mp_obj_t BreakoutIOExpander_set_pwm_period(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
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enum { ARG_self, ARG_value, ARG_load };
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static const mp_arg_t allowed_args[] = {
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{ MP_QSTR_, MP_ARG_REQUIRED | MP_ARG_OBJ },
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{ MP_QSTR_value, MP_ARG_REQUIRED | MP_ARG_INT },
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{ MP_QSTR_load, MP_ARG_BOOL, {.u_bool = true} },
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};
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mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
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mp_arg_parse_all(n_args, pos_args, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
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breakout_ioexpander_BreakoutIOExpander_obj_t *self = MP_OBJ_TO_PTR2(args[ARG_self].u_obj, breakout_ioexpander_BreakoutIOExpander_obj_t);
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int value = args[ARG_value].u_int;
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bool load = args[ARG_load].u_bool;
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if(value < 0 || value > 65535)
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mp_raise_ValueError("value out of range. Expected 0 to 65535");
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else
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self->breakout->set_pwm_period(value, load);
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return mp_const_none;
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}
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mp_obj_t BreakoutIOExpander_get_mode(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
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enum { ARG_self, ARG_pin, ARG_enabled };
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static const mp_arg_t allowed_args[] = {
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{ MP_QSTR_, MP_ARG_REQUIRED | MP_ARG_OBJ },
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{ MP_QSTR_exp_pin, MP_ARG_REQUIRED | MP_ARG_INT },
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};
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mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
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mp_arg_parse_all(n_args, pos_args, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
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breakout_ioexpander_BreakoutIOExpander_obj_t *self = MP_OBJ_TO_PTR2(args[ARG_self].u_obj, breakout_ioexpander_BreakoutIOExpander_obj_t);
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int pin = args[ARG_pin].u_int;
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uint8_t mode = self->breakout->get_mode(pin);
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if(mode == UINT8_MAX)
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mp_raise_ValueError("pin out of range. Expected 1 to 14");
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return mp_obj_new_int(mode);
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}
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mp_obj_t BreakoutIOExpander_set_mode(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
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enum { ARG_self, ARG_pin, ARG_mode, ARG_schmitt_trigger, ARG_invert };
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static const mp_arg_t allowed_args[] = {
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{ MP_QSTR_, MP_ARG_REQUIRED | MP_ARG_OBJ },
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{ MP_QSTR_exp_pin, MP_ARG_REQUIRED | MP_ARG_INT },
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{ MP_QSTR_mode, MP_ARG_REQUIRED | MP_ARG_INT },
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{ MP_QSTR_schmitt_trigger, MP_ARG_BOOL, {.u_bool = false} },
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{ MP_QSTR_invert, MP_ARG_BOOL, {.u_bool = false} },
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};
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mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
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mp_arg_parse_all(n_args, pos_args, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
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breakout_ioexpander_BreakoutIOExpander_obj_t *self = MP_OBJ_TO_PTR2(args[ARG_self].u_obj, breakout_ioexpander_BreakoutIOExpander_obj_t);
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int pin = args[ARG_pin].u_int;
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int mode = args[ARG_mode].u_int;
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bool schmitt_trigger = args[ARG_schmitt_trigger].u_bool;
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bool invert = args[ARG_invert].u_bool;
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if(pin < 1 || pin > IOExpander::NUM_PINS)
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mp_raise_ValueError("pin out of range. Expected 1 to 14");
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else
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self->breakout->set_mode(pin, mode, schmitt_trigger, invert);
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return mp_const_none;
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}
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mp_obj_t BreakoutIOExpander_input(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
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enum { ARG_self, ARG_pin };
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static const mp_arg_t allowed_args[] = {
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{ MP_QSTR_, MP_ARG_REQUIRED | MP_ARG_OBJ },
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{ MP_QSTR_exp_pin, MP_ARG_REQUIRED | MP_ARG_INT },
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};
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mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
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mp_arg_parse_all(n_args, pos_args, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
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breakout_ioexpander_BreakoutIOExpander_obj_t *self = MP_OBJ_TO_PTR2(args[ARG_self].u_obj, breakout_ioexpander_BreakoutIOExpander_obj_t);
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int pin = args[ARG_pin].u_int;
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if(pin < 1 || pin > IOExpander::NUM_PINS)
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mp_raise_ValueError("pin out of range. Expected 1 to 14");
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else
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return mp_obj_new_int(self->breakout->input(pin));
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return mp_const_none;
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}
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mp_obj_t BreakoutIOExpander_input_as_voltage(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
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enum { ARG_self, ARG_pin };
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static const mp_arg_t allowed_args[] = {
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{ MP_QSTR_, MP_ARG_REQUIRED | MP_ARG_OBJ },
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{ MP_QSTR_exp_pin, MP_ARG_REQUIRED | MP_ARG_INT },
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};
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mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
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mp_arg_parse_all(n_args, pos_args, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
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breakout_ioexpander_BreakoutIOExpander_obj_t *self = MP_OBJ_TO_PTR2(args[ARG_self].u_obj, breakout_ioexpander_BreakoutIOExpander_obj_t);
|
|
|
|
int pin = args[ARG_pin].u_int;
|
|
|
|
if(pin < 1 || pin > IOExpander::NUM_PINS)
|
|
mp_raise_ValueError("pin out of range. Expected 1 to 14");
|
|
else
|
|
return mp_obj_new_float(self->breakout->input_as_voltage(pin));
|
|
|
|
return mp_const_none;
|
|
}
|
|
|
|
mp_obj_t BreakoutIOExpander_output(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
|
|
enum { ARG_self, ARG_pin, ARG_value, ARG_load };
|
|
static const mp_arg_t allowed_args[] = {
|
|
{ MP_QSTR_, MP_ARG_REQUIRED | MP_ARG_OBJ },
|
|
{ MP_QSTR_exp_pin, MP_ARG_REQUIRED | MP_ARG_INT },
|
|
{ MP_QSTR_value, MP_ARG_REQUIRED | MP_ARG_INT },
|
|
{ MP_QSTR_load, MP_ARG_BOOL, {.u_bool = true} },
|
|
};
|
|
|
|
mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
|
|
mp_arg_parse_all(n_args, pos_args, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
|
|
|
|
breakout_ioexpander_BreakoutIOExpander_obj_t *self = MP_OBJ_TO_PTR2(args[ARG_self].u_obj, breakout_ioexpander_BreakoutIOExpander_obj_t);
|
|
|
|
int pin = args[ARG_pin].u_int;
|
|
int value = args[ARG_value].u_int;
|
|
bool load = args[ARG_load].u_bool;
|
|
|
|
if(pin < 1 || pin > IOExpander::NUM_PINS)
|
|
mp_raise_ValueError("pin out of range. Expected 1 to 14");
|
|
else if(value < 0 || value > 65535)
|
|
mp_raise_ValueError("value out of range. Expected 0 to 65535");
|
|
else
|
|
self->breakout->output(pin, value, load);
|
|
|
|
return mp_const_none;
|
|
}
|
|
|
|
mp_obj_t BreakoutIOExpander_setup_rotary_encoder(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
|
|
enum { ARG_self, ARG_channel, ARG_pin_a, ARG_pin_b, ARG_pin_c, ARG_count_microsteps };
|
|
static const mp_arg_t allowed_args[] = {
|
|
{ MP_QSTR_, MP_ARG_REQUIRED | MP_ARG_OBJ },
|
|
{ MP_QSTR_channel, MP_ARG_REQUIRED | MP_ARG_INT },
|
|
{ MP_QSTR_pin_a, MP_ARG_REQUIRED | MP_ARG_INT },
|
|
{ MP_QSTR_pin_b, MP_ARG_REQUIRED | MP_ARG_INT },
|
|
{ MP_QSTR_pin_c, MP_ARG_INT, {.u_int = 0} },
|
|
{ MP_QSTR_count_microsteps, MP_ARG_BOOL, {.u_bool = false} },
|
|
};
|
|
|
|
mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
|
|
mp_arg_parse_all(n_args, pos_args, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
|
|
|
|
breakout_ioexpander_BreakoutIOExpander_obj_t *self = MP_OBJ_TO_PTR2(args[ARG_self].u_obj, breakout_ioexpander_BreakoutIOExpander_obj_t);
|
|
|
|
int channel = args[ARG_channel].u_int;
|
|
int pin_a = args[ARG_pin_a].u_int;
|
|
int pin_b = args[ARG_pin_b].u_int;
|
|
int pin_c = args[ARG_pin_c].u_int;
|
|
bool count_microsteps = args[ARG_count_microsteps].u_bool;
|
|
|
|
if(channel < 1 || channel > 4)
|
|
mp_raise_ValueError("channel out of range. Expected 1 to 4");
|
|
else if(pin_a < 1 || pin_a > 14)
|
|
mp_raise_ValueError("pin_a out of range. Expected 1 to 14");
|
|
else if(pin_b < 1 || pin_b > 14)
|
|
mp_raise_ValueError("pin_b out of range. Expected 1 to 14");
|
|
else if(pin_c < 1 || pin_c > 14)
|
|
mp_raise_ValueError("pin_c out of range. Expected 1 to 14");
|
|
else
|
|
self->breakout->setup_rotary_encoder(channel, pin_a, pin_b, pin_c, count_microsteps);
|
|
|
|
return mp_const_none;
|
|
}
|
|
|
|
mp_obj_t BreakoutIOExpander_read_rotary_encoder(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
|
|
enum { ARG_self, ARG_channel, ARG_value, ARG_load };
|
|
static const mp_arg_t allowed_args[] = {
|
|
{ MP_QSTR_, MP_ARG_REQUIRED | MP_ARG_OBJ },
|
|
{ MP_QSTR_channel, MP_ARG_REQUIRED | MP_ARG_INT },
|
|
};
|
|
|
|
mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
|
|
mp_arg_parse_all(n_args, pos_args, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
|
|
|
|
breakout_ioexpander_BreakoutIOExpander_obj_t *self = MP_OBJ_TO_PTR2(args[ARG_self].u_obj, breakout_ioexpander_BreakoutIOExpander_obj_t);
|
|
|
|
int channel = args[ARG_channel].u_int;
|
|
if(channel < 1 || channel > 4)
|
|
mp_raise_ValueError("channel out of range. Expected 1 to 4");
|
|
else
|
|
return mp_obj_new_int(self->breakout->read_rotary_encoder(channel));
|
|
|
|
return mp_const_none;
|
|
}
|
|
} |