pimoroni-pico/micropython/modules/breakout_rgbmatrix5x5/breakout_rgbmatrix5x5.cpp

#include "libraries/breakout_rgbmatrix5x5/breakout_rgbmatrix5x5.hpp"
#include "micropython/modules/util.hpp"
#include <cstdio>


using namespace pimoroni;

extern "C" {
#include "breakout_rgbmatrix5x5.h"
#include "pimoroni_i2c.h"

/***** Variables Struct *****/
typedef struct _breakout_rgbmatrix5x5_BreakoutRGBMatrix5x5_obj_t {
    mp_obj_base_t base;
    BreakoutRGBMatrix5x5 *breakout;
    _PimoroniI2C_obj_t *i2c;
} breakout_rgbmatrix5x5_BreakoutRGBMatrix5x5_obj_t;


/***** Constructor *****/
mp_obj_t BreakoutRGBMatrix5x5_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *all_args) {
    breakout_rgbmatrix5x5_BreakoutRGBMatrix5x5_obj_t *self = nullptr;

    enum { ARG_i2c, ARG_address };
    static const mp_arg_t allowed_args[] = {
        { MP_QSTR_i2c, MP_ARG_OBJ, {.u_obj = nullptr} },
        { MP_QSTR_address, MP_ARG_INT, {.u_int = BreakoutRGBMatrix5x5::DEFAULT_I2C_ADDRESS} }
    };

    // Parse args.
    mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
    mp_arg_parse_all_kw_array(n_args, n_kw, all_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);

    self = m_new_obj(breakout_rgbmatrix5x5_BreakoutRGBMatrix5x5_obj_t);
    self->base.type = &breakout_rgbmatrix5x5_BreakoutRGBMatrix5x5_type;

    self->i2c = PimoroniI2C_from_machine_i2c_or_native(args[ARG_i2c].u_obj);

    self->breakout = m_new_class(BreakoutRGBMatrix5x5, (pimoroni::I2C *)(self->i2c->i2c), args[ARG_address].u_int);

    if(!self->breakout->init()) {
        mp_raise_msg(&mp_type_RuntimeError, "BreakoutRGBMatrix5x5: breakout not found when initialising");
    }

    return MP_OBJ_FROM_PTR(self);
}

/***** Methods *****/
mp_obj_t BreakoutRGBMatrix5x5_set_pixel(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
    enum { ARG_self, ARG_x, ARG_y, ARG_r, ARG_g, ARG_b };
    static const mp_arg_t allowed_args[] = {
        { MP_QSTR_, MP_ARG_REQUIRED | MP_ARG_OBJ },
        { MP_QSTR_col, MP_ARG_REQUIRED | MP_ARG_INT },
        { MP_QSTR_row, MP_ARG_REQUIRED | MP_ARG_INT },
        { MP_QSTR_r, MP_ARG_REQUIRED | MP_ARG_INT },
        { MP_QSTR_g, MP_ARG_REQUIRED | MP_ARG_INT },
        { MP_QSTR_b, 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_rgbmatrix5x5_BreakoutRGBMatrix5x5_obj_t *self = MP_OBJ_TO_PTR2(args[ARG_self].u_obj, breakout_rgbmatrix5x5_BreakoutRGBMatrix5x5_obj_t);

    int x = args[ARG_x].u_int;
    int y = args[ARG_y].u_int;
    int r = args[ARG_r].u_int;
    int g = args[ARG_g].u_int;
    int b = args[ARG_b].u_int;

    if(x < 0 || x >= BreakoutRGBMatrix5x5::WIDTH || y < 0 || y >= BreakoutRGBMatrix5x5::HEIGHT)
        mp_raise_ValueError("x or y out of range.");
    else {
        if(r < 0 || r > 255)
            mp_raise_ValueError("r out of range. Expected 0 to 255");
        else if(g < 0 || g > 255)
            mp_raise_ValueError("g out of range. Expected 0 to 255");
        else if(b < 0 || b > 255)
            mp_raise_ValueError("b out of range. Expected 0 to 255");
        else
            self->breakout->set_pixel(x, y, r, g, b);
    }

    return mp_const_none;
}

mp_obj_t BreakoutRGBMatrix5x5_update(mp_obj_t self_in) {
    breakout_rgbmatrix5x5_BreakoutRGBMatrix5x5_obj_t *self = MP_OBJ_TO_PTR2(self_in, breakout_rgbmatrix5x5_BreakoutRGBMatrix5x5_obj_t);
    self->breakout->update();

    return mp_const_none;
}

mp_obj_t BreakoutRGBMatrix5x5_clear(mp_obj_t self_in) {
    breakout_rgbmatrix5x5_BreakoutRGBMatrix5x5_obj_t *self = MP_OBJ_TO_PTR2(self_in, breakout_rgbmatrix5x5_BreakoutRGBMatrix5x5_obj_t);
    self->breakout->clear();

    return mp_const_none;
}
}