platformio/Alex2ESP
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Describe interfaces with PROGMEM descriptor rows; drop the switch tables

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AlexaInterfaces.h/.cpp hold one row per interface in program memory (28: namespace,
version, property names, flags, type), each row and string an object of its own, so
the linker keeps only the rows a sketch names. addCapability(AlexaInterfaceType) is
an always-inline switch that folds to one row; a type without a row is refused with
an error. The Event handler gets its type from the capabilities of the device.
Versions follow the interface pages (EndpointHealth 3.1, ThermostatController 3.2),
HumiditySensor is new, the two withdrawn interfaces and AlexaInterfaceUtils are gone.
Display category names are in flash. The discovery objects of the five examples are
unchanged: 14 new host tests compare them with what the previous commit announced.
basicLight on a D1 mini: static RAM 34,508 -> 30,788, flash 338,533 -> 330,509;
it links two rows, EndpointHealth and PowerController. Host tests: 47 -> 61.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
This commit is contained in:
David 2026-09-28 19:04:14 +00:00
parent d534f23f27
commit 8b11cc2394
13 changed files with 909 additions and 777 deletions
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15
src/AlexaCompat.h
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@ -1,14 +1,23 @@
// Lets the sources that have no hardware dependency compile on a host (pio test -e native), where the
// program-memory helpers of the Arduino cores do not exist. On a board this is Arduino.h and nothing else.
// program-memory helpers of the Arduino cores do not exist: there a PROGMEM object is an ordinary constant and a
// pointer to one an ordinary pointer. On a board this is Arduino.h and nothing else.
#ifndef ALEXA_COMPAT_H
#define ALEXA_COMPAT_H
#if defined(ARDUINO)
#include <Arduino.h>
#else
#ifndef PSTR
#include <stdint.h>
#include <string.h>
#define PROGMEM
#define PGM_P const char *
#define PSTR(text) (text)
#endif
#define F(text) (text)
#define FPSTR(text) (text)
#define pgm_read_byte(address) (*reinterpret_cast<const uint8_t *>(address))
#define pgm_read_ptr(address) (*reinterpret_cast<const void *const *>(address))
#define strcmp_P strcmp
#define strncpy_P strncpy
#endif
#endif // ALEXA_COMPAT_H