kopia lustrzana https://github.com/pimoroni/pimoroni-pico
105 wiersze
3.7 KiB
C++
105 wiersze
3.7 KiB
C++
#include "drivers/bme68x/bme68x.hpp"
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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_bme68x.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_bme68x_BreakoutBME68X_obj_t {
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mp_obj_base_t base;
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BME68X *breakout;
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} breakout_bme68x_BreakoutBME68X_obj_t;
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/***** Print *****/
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void BreakoutBME68X_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_bme68x_BreakoutBME68X_obj_t *self = MP_OBJ_TO_PTR2(self_in, breakout_bme68x_BreakoutBME68X_obj_t);
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BME68X* breakout = self->breakout;
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mp_print_str(print, "BreakoutBME68X(");
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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()->get_i2c() == i2c0) ? 0 : 1), PRINT_REPR);
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mp_print_str(print, ", sda = ");
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mp_obj_print_helper(print, mp_obj_new_int(breakout->get_i2c()->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_i2c()->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 BreakoutBME68X_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_bme68x_BreakoutBME68X_obj_t *self = nullptr;
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enum { ARG_i2c, ARG_address, ARG_int };
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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 = BME68X::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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if(!MP_OBJ_IS_TYPE(args[ARG_i2c].u_obj, &PimoroniI2C_type)) {
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mp_raise_ValueError(MP_ERROR_TEXT("BreakoutBME68X: 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_bme68x_BreakoutBME68X_obj_t);
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self->base.type = &breakout_bme68x_BreakoutBME68X_type;
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self->breakout = new BME68X(i2c->i2c, args[ARG_address].u_int, args[ARG_int].u_int);
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if(!self->breakout->init()) {
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mp_raise_msg(&mp_type_RuntimeError, "BreakoutBME68X: 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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mp_obj_t BreakoutBME68X_read(mp_obj_t self_in) {
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breakout_bme68x_BreakoutBME68X_obj_t *self = MP_OBJ_TO_PTR2(self_in, breakout_bme68x_BreakoutBME68X_obj_t);
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bme68x_data result;
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if(self->breakout->read_forced(&result)){
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mp_obj_t tuple[7];
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tuple[0] = mp_obj_new_float(result.temperature);
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tuple[1] = mp_obj_new_float(result.pressure);
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tuple[2] = mp_obj_new_float(result.humidity);
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tuple[3] = mp_obj_new_float(result.gas_resistance);
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tuple[4] = mp_obj_new_float(result.status);
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tuple[5] = mp_obj_new_float(result.gas_index);
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tuple[6] = mp_obj_new_float(result.meas_index);
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return mp_obj_new_tuple(7, tuple);
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}
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else {
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mp_raise_msg(&mp_type_RuntimeError, "BreakoutBME68X: failed read_forced");
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return mp_const_none;
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}
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}
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} |