Fpb ra8e1#189
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…ecycle Rework tone/noTone internals to better match Arduino behavior while making concurrent tone usage configurable and safer. - Add CONFIG_ARDUINO_MAX_TONES (default: -1). - Negative values fall back to the digital pin count from devicetree. - Replace per-pin tone timer arrays with slot-based pin_timer entries. - Remove the timeout companion timer and finish finite tones by counting remaining toggles in tone_expiry_cb(). Signed-off-by: TOKITA Hiroshi <tokita.hiroshi@gmail.com>
Allow Arduino APIs to switch a pin between GPIO and peripheral functions by re-running the selected device init path when the requested owner changes. This is an interim pinmux handoff mechanism for boards where sketches may move a pin back and forth between serial/GPIO/PWM-style use. Co-Authored-by: Martino Facchin <m.facchin@arduino.cc> Co-Authored-by: pennam <m.pennasilico@arduino.cc> Signed-off-by: TOKITA Hiroshi <tokita.hiroshi@gmail.com>
When analogWrite() is called for a pin that cannot be resolved to a PWM channel, or when the resolved PWM device is not ready, fall back to GPIO output instead of returning without changing the pin state. This matches the common Arduino behavior for pins without hardware PWM support: values above the midpoint drive the pin HIGH, while lower values drive it LOW. Existing hardware PWM behavior is unchanged. Co-Authored-by: Satvik <145106491+vs11official@users.noreply.github.com> Signed-off-by: TOKITA Hiroshi <tokita.hiroshi@gmail.com>
Passing -1 to digital I/O functions may happen when libraries do not properly sanitize their inputs, leading to undefined behavior. This commit adds a check to ensure that the pin number is valid before accessing the arduino_pins array. Signed-off-by: Luca Burelli <l.burelli@arduino.cc> Signed-off-by: TOKITA Hiroshi <tokita.hiroshi@gmail.com>
Add digitalPinToPortDevice() and digitalPinToPinIndex(). Also define F_CPU for ARM targets. Co-authored-by: Martino Facchin <m.facchin@arduino.cc> Signed-off-by: TOKITA Hiroshi <tokita.hiroshi@gmail.com>
Replace {0} with {} for port_callback, set dac_channel_cfg::internal
explicitly, and expand the adc_sequence initialization to make default
values explicit and avoid C++ initializer warnings.
Signed-off-by: TOKITA Hiroshi <tokita.hiroshi@gmail.com>
Move constexpr-specified constants and functions used for compile-time calculations from zephyrCommon.cpp to wiring_private.h. Signed-off-by: TOKITA Hiroshi <tokita.hiroshi@gmail.com>
Split zephyrCommon.cpp into smaller source files. wiring_digital.cpp: - pinMode - digitalWrite - digitalRead wiring_analog.cpp: - analogRead - analogWrite - analogReference - analogReadResolution - analogWriteResolution wiring_pulse.cpp: - pulseIn WInterrupts.cpp: - attachInterrupt - detachInterrupt - interrupts - noInterrupts - digitalPinToInterrupt WMath.cpp: - randomSeed - random Tone.cpp: - tone - noTone Signed-off-by: TOKITA Hiroshi <tokita.hiroshi@gmail.com>
Move the constant array derived from devicetree to wiring_private.h and convert it to constexpr. Signed-off-by: TOKITA Hiroshi <tokita.hiroshi@gmail.com>
Define `invalid_pin_number` and replace `pin_size_t(-1)`. Signed-off-by: TOKITA Hiroshi <tokita.hiroshi@gmail.com>
In preparation for improvements to allow the use of GPIOs without device tree definitions, the interface will be changed to specify port and pin instead of `gpio_dt_spec`. Signed-off-by: TOKITA Hiroshi <tokita.hiroshi@gmail.com>
Like digital pins, ADCs and PWMs are also defined from connectors. Signed-off-by: TOKITA Hiroshi <tokita.hiroshi@gmail.com>
Add guide for adding new board configuration and configuration reference. Signed-off-by: TOKITA Hiroshi <tokita.hiroshi@gmail.com>
A new configuration method has been adopted, allowing support to be added with less configuration than before. Signed-off-by: TOKITA Hiroshi <tokita.hiroshi@gmail.com>
Signed-off-by: TOKITA Hiroshi <tokita.hiroshi@gmail.com>
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