kopia lustrzana https://github.com/pimoroni/pimoroni-pico
222 wiersze
8.8 KiB
C++
222 wiersze
8.8 KiB
C++
#include "libraries/breakout_potentiometer/breakout_potentiometer.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_potentiometer.h"
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/***** Variables Struct *****/
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typedef struct _breakout_potentiometer_BreakoutPotentiometer_obj_t {
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mp_obj_base_t base;
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BreakoutPotentiometer *breakout;
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} breakout_potentiometer_BreakoutPotentiometer_obj_t;
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/***** Print *****/
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void BreakoutPotentiometer_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_potentiometer_BreakoutPotentiometer_obj_t *self = MP_OBJ_TO_PTR2(self_in, breakout_potentiometer_BreakoutPotentiometer_obj_t);
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BreakoutPotentiometer* breakout = self->breakout;
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mp_print_str(print, "BreakoutPotentiometer(");
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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 BreakoutPotentiometer_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_potentiometer_BreakoutPotentiometer_obj_t *self = nullptr;
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enum { ARG_i2c, ARG_address, ARG_sda, ARG_scl, ARG_interrupt };
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static const mp_arg_t allowed_args[] = {
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{ MP_QSTR_i2c, MP_ARG_INT, {.u_int = -1} },
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{ MP_QSTR_address, MP_ARG_INT, {.u_int = BreakoutPotentiometer::DEFAULT_I2C_ADDRESS} },
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{ MP_QSTR_sda, MP_ARG_INT, {.u_int = I2C_DEFAULT_SDA} },
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{ MP_QSTR_scl, MP_ARG_INT, {.u_int = I2C_DEFAULT_SCL} },
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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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int i2c_id = args[ARG_i2c].u_int;
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int sda = args[ARG_sda].u_int;
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int scl = args[ARG_scl].u_int;
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if(i2c_id == -1) {
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i2c_id = (sda >> 1) & 0b1; // If no i2c specified, choose the one for the given SDA pin
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}
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if(i2c_id < 0 || i2c_id > 1) {
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mp_raise_msg_varg(&mp_type_ValueError, MP_ERROR_TEXT("I2C(%d) doesn't exist"), i2c_id);
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}
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if(!IS_VALID_SDA(i2c_id, sda)) {
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mp_raise_ValueError(MP_ERROR_TEXT("bad SDA pin"));
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}
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if(!IS_VALID_SCL(i2c_id, scl)) {
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mp_raise_ValueError(MP_ERROR_TEXT("bad SCL pin"));
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}
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self = m_new_obj(breakout_potentiometer_BreakoutPotentiometer_obj_t);
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self->base.type = &breakout_potentiometer_BreakoutPotentiometer_type;
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i2c_inst_t *i2c = (i2c_id == 0) ? i2c0 : i2c1;
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self->breakout = new BreakoutPotentiometer(i2c, args[ARG_address].u_int, sda, scl, args[ARG_interrupt].u_int);
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if(!self->breakout->init()) {
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mp_raise_msg(&mp_type_RuntimeError, "Potentiometer 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 BreakoutPotentiometer_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_potentiometer_BreakoutPotentiometer_obj_t *self = MP_OBJ_TO_PTR2(args[ARG_self].u_obj, breakout_potentiometer_BreakoutPotentiometer_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 BreakoutPotentiometer_get_adc_vref(mp_obj_t self_in) {
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breakout_potentiometer_BreakoutPotentiometer_obj_t *self = MP_OBJ_TO_PTR2(self_in, breakout_potentiometer_BreakoutPotentiometer_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 BreakoutPotentiometer_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_potentiometer_BreakoutPotentiometer_obj_t *self = MP_OBJ_TO_PTR2(args[ARG_self].u_obj, breakout_potentiometer_BreakoutPotentiometer_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 BreakoutPotentiometer_get_direction(mp_obj_t self_in) {
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breakout_potentiometer_BreakoutPotentiometer_obj_t *self = MP_OBJ_TO_PTR2(self_in, breakout_potentiometer_BreakoutPotentiometer_obj_t);
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return mp_obj_new_bool(self->breakout->get_direction());
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}
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mp_obj_t BreakoutPotentiometer_set_direction(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
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enum { ARG_self, ARG_clockwise };
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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_clockwise, 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_potentiometer_BreakoutPotentiometer_obj_t *self = MP_OBJ_TO_PTR2(args[ARG_self].u_obj, breakout_potentiometer_BreakoutPotentiometer_obj_t);
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self->breakout->set_direction(args[ARG_clockwise].u_bool ? BreakoutPotentiometer::DIRECTION_CW : BreakoutPotentiometer::DIRECTION_CCW);
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return mp_const_none;
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}
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mp_obj_t BreakoutPotentiometer_set_brightness(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
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enum { ARG_self, ARG_brightness };
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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_brightness, 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_potentiometer_BreakoutPotentiometer_obj_t *self = MP_OBJ_TO_PTR2(args[ARG_self].u_obj, breakout_potentiometer_BreakoutPotentiometer_obj_t);
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float brightness = mp_obj_get_float(args[ARG_brightness].u_obj);
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if(brightness < 0 || brightness > 1.0f)
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mp_raise_ValueError("brightness out of range. Expected 0.0 to 1.0");
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else
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self->breakout->set_brightness(brightness);
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return mp_const_none;
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}
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mp_obj_t BreakoutPotentiometer_set_led(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
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enum { ARG_self, ARG_r, ARG_g, ARG_b, ARG_w };
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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_r, MP_ARG_REQUIRED | MP_ARG_INT },
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{ MP_QSTR_g, MP_ARG_REQUIRED | MP_ARG_INT },
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{ MP_QSTR_b, 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_potentiometer_BreakoutPotentiometer_obj_t *self = MP_OBJ_TO_PTR2(args[ARG_self].u_obj, breakout_potentiometer_BreakoutPotentiometer_obj_t);
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int r = args[ARG_r].u_int;
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int g = args[ARG_g].u_int;
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int b = args[ARG_b].u_int;
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if(r < 0 || r > 255)
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mp_raise_ValueError("r out of range. Expected 0 to 255");
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else if(g < 0 || g > 255)
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mp_raise_ValueError("g out of range. Expected 0 to 255");
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else if(b < 0 || b > 255)
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mp_raise_ValueError("b out of range. Expected 0 to 255");
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else
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self->breakout->set_led(r, g, b);
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return mp_const_none;
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}
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mp_obj_t BreakoutPotentiometer_read(mp_obj_t self_in) {
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breakout_potentiometer_BreakoutPotentiometer_obj_t *self = MP_OBJ_TO_PTR2(self_in, breakout_potentiometer_BreakoutPotentiometer_obj_t);
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return mp_obj_new_float(self->breakout->read());
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}
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mp_obj_t BreakoutPotentiometer_read_raw(mp_obj_t self_in) {
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breakout_potentiometer_BreakoutPotentiometer_obj_t *self = MP_OBJ_TO_PTR2(self_in, breakout_potentiometer_BreakoutPotentiometer_obj_t);
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return mp_obj_new_int(self->breakout->read_raw());
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}
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} |