0ae344841f
This prevents corrupting previous functional objects by stealing their pins out from under them. It prevents this by ensuring that pins are in default state before claiming them. It also verifies pins are released correctly and reset on soft reset. Fixes #4, instantiating a second class will fail. Fixes #29, pins are now reset too.
491 lines
9.2 KiB
C
491 lines
9.2 KiB
C
#include "shared-bindings/microcontroller/Pin.h"
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#include "samd21_pins.h"
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#define SERCOM(p_sercom, p_pad) \
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{ \
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.sercom = p_sercom, \
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.pad = p_pad \
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}
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#define NO_SERCOM SERCOM(0, 0)
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#define TCC(p_tcc, p_channel, p_wave_output) \
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{ \
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.tcc = p_tcc, \
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.is_tc = false, \
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.channel = p_channel, \
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.wave_output = p_wave_output \
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}
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#define TC(p_tc, p_channel, p_wave_output) \
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{ \
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.tc = p_tc, \
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.is_tc = true, \
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.channel = p_channel, \
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.wave_output = p_wave_output \
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}
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#define NO_TIMER TCC(0, 0, 0)
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// This macro is used to simplify pin definition in boards/<board>/pins.c
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#define PIN(p_name, p_has_adc, p_adc_input, p_primary_timer, \
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p_secondary_timer, p_primary_sercom, p_secondary_sercom) \
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const mcu_pin_obj_t pin_## p_name = { \
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{ &mcu_pin_type }, \
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.name = MP_QSTR_ ## p_name, \
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.pin = (PIN_## p_name), \
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.has_adc = p_has_adc, \
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.adc_input = p_adc_input, \
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.primary_timer = p_primary_timer, \
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.secondary_timer = p_secondary_timer, \
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.sercom = {p_primary_sercom, p_secondary_sercom}, \
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}
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#define NO_ADC_INPUT (0)
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void reset_pin(uint8_t pin) {
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struct system_pinmux_config config;
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system_pinmux_get_config_defaults(&config);
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config.powersave = true;
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system_pinmux_pin_set_config(pin, &config);
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}
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// Pins in datasheet order.
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#ifdef PIN_PA00
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PIN(PA00, false, NO_ADC_INPUT, \
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TCC(TCC2, 0, 0),
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NO_TIMER,
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SERCOM(SERCOM1, 0),
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NO_SERCOM);
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#endif
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#ifdef PIN_PA01
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PIN(PA01, false, NO_ADC_INPUT,
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TCC(TCC2, 1, 1),
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NO_TIMER,
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SERCOM(SERCOM1, 1),
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NO_SERCOM);
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#endif
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#ifdef PIN_PA02
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PIN(PA02, true, ADC_POSITIVE_INPUT_PIN0,
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NO_TIMER,
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NO_TIMER,
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NO_SERCOM,
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NO_SERCOM);
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#endif
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#ifdef PIN_PA03
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PIN(PA03, true, ADC_POSITIVE_INPUT_PIN1,
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NO_TIMER,
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NO_TIMER,
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NO_SERCOM,
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NO_SERCOM);
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#endif
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#ifdef PIN_PB04
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PIN(PB04, true, ADC_POSITIVE_INPUT_PIN12,
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NO_TIMER,
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NO_TIMER,
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NO_SERCOM,
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NO_SERCOM);
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#endif
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#ifdef PIN_PB05
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PIN(PB05, true, ADC_POSITIVE_INPUT_PIN13,
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NO_TIMER,
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NO_TIMER,
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NO_SERCOM,
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NO_SERCOM);
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#endif
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#ifdef PIN_PB06
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PIN(PB06, true, ADC_POSITIVE_INPUT_PIN14,
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NO_TIMER,
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NO_TIMER,
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NO_SERCOM,
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NO_SERCOM);
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#endif
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#ifdef PIN_PB07
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PIN(PB07, true, ADC_POSITIVE_INPUT_PIN15,
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NO_TIMER,
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NO_TIMER,
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NO_SERCOM,
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NO_SERCOM);
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#endif
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#ifdef PIN_PB08
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PIN(PB08, true, ADC_POSITIVE_INPUT_PIN2,
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TC(TC4, 0, 0),
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NO_TIMER,
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NO_SERCOM,
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SERCOM(SERCOM4, 0));
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#endif
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#ifdef PIN_PB09
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PIN(PB09, true, ADC_POSITIVE_INPUT_PIN3,
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TC(TC4, 1, 1),
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NO_TIMER,
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NO_SERCOM,
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SERCOM(SERCOM4, 1));
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#endif
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#ifdef PIN_PA04
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PIN(PA04, true, ADC_POSITIVE_INPUT_PIN4,
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TCC(TCC0, 0, 0),
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NO_TIMER,
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NO_SERCOM,
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SERCOM(SERCOM0, 0));
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#endif
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#ifdef PIN_PA05
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PIN(PA05, true, ADC_POSITIVE_INPUT_PIN5,
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TCC(TCC0, 1, 1),
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NO_TIMER,
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NO_SERCOM,
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SERCOM(SERCOM0, 1));
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#endif
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#ifdef PIN_PA06
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PIN(PA06, true, ADC_POSITIVE_INPUT_PIN6,
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TCC(TCC1, 0, 0),
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NO_TIMER,
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SERCOM(SERCOM0, 2),
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NO_SERCOM);
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#endif
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#ifdef PIN_PA07
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PIN(PA07, true, ADC_POSITIVE_INPUT_PIN7,
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TCC(TCC1, 1, 1),
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NO_TIMER,
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SERCOM(SERCOM0, 3),
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NO_SERCOM);
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#endif
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#ifdef PIN_PA08
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PIN(PA08, true, ADC_POSITIVE_INPUT_PIN17,
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TCC(TCC0, 0, 0),
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TCC(TCC1, 2, 2),
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SERCOM(SERCOM0, 0),
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SERCOM(SERCOM2, 0));
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#endif
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#ifdef PIN_PA09
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PIN(PA09, true, ADC_POSITIVE_INPUT_PIN17,
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TCC(TCC0, 1, 1),
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TCC(TCC1, 3, 3),
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SERCOM(SERCOM0, 1),
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SERCOM(SERCOM2, 1));
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#endif
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#ifdef PIN_PA10
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PIN(PA10, true, ADC_POSITIVE_INPUT_PIN18,
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TCC(TCC1, 0, 0),
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TCC(TCC0, 2, 2),
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SERCOM(SERCOM0, 2),
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SERCOM(SERCOM2, 2));
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#endif
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#ifdef PIN_PA11
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PIN(PA11, true, ADC_POSITIVE_INPUT_PIN19,
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TCC(TCC1, 1, 1),
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TCC(TCC0, 3, 3),
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SERCOM(SERCOM0, 3),
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SERCOM(SERCOM2, 3));
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#endif
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#ifdef PIN_PB10
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PIN(PB10, false, NO_ADC_INPUT,
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TC(TC5, 0, 0),
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TCC(TCC0, 0, 4),
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NO_SERCOM,
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SERCOM(SERCOM4, 2));
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#endif
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#ifdef PIN_PB11
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PIN(PB11, false, NO_ADC_INPUT,
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TC(TC5, 1, 1),
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TCC(TCC0, 1, 5),
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NO_SERCOM,
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SERCOM(SERCOM4, 3));
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#endif
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#ifdef PIN_PB12
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PIN(PB12, false, NO_ADC_INPUT,
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TC(TC4, 0, 0),
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TCC(TCC0, 2, 6),
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SERCOM(SERCOM4, 0),
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NO_SERCOM);
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#endif
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#ifdef PIN_PB13
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PIN(PB13, false, NO_ADC_INPUT,
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TC(TC4, 1, 1),
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TCC(TCC0, 3, 7),
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SERCOM(SERCOM4, 1),
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NO_SERCOM);
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#endif
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#ifdef PIN_PB14
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PIN(PB14, false, NO_ADC_INPUT,
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TC(TC5, 0, 0),
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NO_TIMER,
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SERCOM(SERCOM4, 2),
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NO_SERCOM);
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#endif
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// Second page.
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#ifdef PIN_PB15
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PIN(PB15, false, NO_ADC_INPUT,
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TC(TC5, 1, 1),
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NO_TIMER,
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SERCOM(SERCOM4, 3),
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NO_SERCOM);
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#endif
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#ifdef PIN_PA12
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PIN(PA12, false, NO_ADC_INPUT,
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TCC(TCC2, 0, 0),
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TCC(TCC0, 2, 6),
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SERCOM(SERCOM2, 0),
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SERCOM(SERCOM4, 0));
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#endif
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#ifdef PIN_PA13
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PIN(PA13, false, NO_ADC_INPUT,
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TCC(TCC2, 1, 1),
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TCC(TCC0, 3, 7),
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SERCOM(SERCOM2, 1),
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SERCOM(SERCOM4, 1));
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#endif
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#ifdef PIN_PA14
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PIN(PA14, false, NO_ADC_INPUT,
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TC(TC3, 0, 0),
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TCC(TCC0, 0, 4),
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SERCOM(SERCOM2, 2),
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#ifdef SERCOM4
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SERCOM(SERCOM4, 2)
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#else
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NO_SERCOM
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#endif
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);
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#endif
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#ifdef PIN_PA15
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PIN(PA15, false, NO_ADC_INPUT,
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TC(TC3, 1, 1),
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TCC(TCC0, 1, 5),
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SERCOM(SERCOM2, 3),
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#ifdef SERCOM4
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SERCOM(SERCOM4, 3)
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#else
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NO_SERCOM
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#endif
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);
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#endif
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#ifdef PIN_PA16
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PIN(PA16, false, NO_ADC_INPUT,
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TCC(TCC2, 0, 0),
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TCC(TCC0, 2, 6),
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SERCOM(SERCOM1, 0),
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SERCOM(SERCOM3, 0));
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#endif
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#ifdef PIN_PA17
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PIN(PA17, false, NO_ADC_INPUT,
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TCC(TCC2, 1, 1),
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TCC(TCC0, 3, 7),
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SERCOM(SERCOM1, 1),
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SERCOM(SERCOM3, 1));
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#endif
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#ifdef PIN_PA18
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PIN(PA18, false, NO_ADC_INPUT,
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TC(TC3, 0, 0),
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TCC(TCC0, 2, 2),
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SERCOM(SERCOM1, 2),
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SERCOM(SERCOM3, 2));
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#endif
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#ifdef PIN_PA19
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PIN(PA19, false, NO_ADC_INPUT,
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TC(TC3, 1, 1),
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TCC(TCC0, 3, 3),
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SERCOM(SERCOM1, 3),
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SERCOM(SERCOM3, 3));
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#endif
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#ifdef PIN_PB16
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PIN(PB16, false, NO_ADC_INPUT,
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#ifdef _SAMD21_TC6_INSTANCE_
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TC(TC6, 0, 0),
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#else
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NO_TIMER,
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#endif
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TCC(TCC0, 0, 4),
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SERCOM(SERCOM5, 0),
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NO_SERCOM);
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#endif
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#ifdef PIN_PB17
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PIN(PB17, false, NO_ADC_INPUT,
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#ifdef _SAMD21_TC6_INSTANCE_
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TC(TC6, 0, 0),
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#else
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NO_TIMER,
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#endif
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TCC(TCC0, 1, 5),
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SERCOM(SERCOM5, 1),
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NO_SERCOM);
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#endif
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#ifdef PIN_PA20
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PIN(PA20, false, NO_ADC_INPUT,
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#ifdef _SAMD21_TC7_INSTANCE_
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TC(TC7, 0, 0),
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#else
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NO_TIMER,
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#endif
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TCC(TCC0, 2, 6),
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SERCOM(SERCOM5, 2),
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SERCOM(SERCOM3, 2));
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#endif
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#ifdef PIN_PA21
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PIN(PA21, false, NO_ADC_INPUT,
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#ifdef _SAMD21_TC7_INSTANCE_
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TC(TC7, 1, 1),
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#else
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NO_TIMER,
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#endif
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TCC(TCC0, 3, 7),
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SERCOM(SERCOM5, 3),
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SERCOM(SERCOM3, 3));
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#endif
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#ifdef PIN_PA22
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PIN(PA22, false, NO_ADC_INPUT,
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TC(TC4, 0, 0),
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TCC(TCC0, 0, 4),
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SERCOM(SERCOM3, 0),
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#ifdef SERCOM5
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SERCOM(SERCOM5, 0)
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#else
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NO_SERCOM
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#endif
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);
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#endif
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#ifdef PIN_PA23
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PIN(PA23, false, NO_ADC_INPUT,
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TC(TC4, 1, 1),
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TCC(TCC0, 1, 5),
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SERCOM(SERCOM3, 1),
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#ifdef SERCOM5
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SERCOM(SERCOM5, 1)
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#else
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NO_SERCOM
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#endif
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);
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#endif
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#ifdef PIN_PA24
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PIN(PA24, false, NO_ADC_INPUT,
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TC(TC5, 0, 0),
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TCC(TCC0, 2, 2),
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SERCOM(SERCOM3, 2),
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#ifdef SERCOM5
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SERCOM(SERCOM5, 2)
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#else
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NO_SERCOM
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#endif
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);
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#endif
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#ifdef PIN_PA25
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PIN(PA25, false, NO_ADC_INPUT,
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TC(TC5, 1, 1),
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TCC(TCC1, 3, 3),
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SERCOM(SERCOM3, 3),
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#ifdef SERCOM5
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SERCOM(SERCOM5, 3)
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#else
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NO_SERCOM
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#endif
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);
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#endif
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#ifdef PIN_PB22
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PIN(PB22, false, NO_ADC_INPUT,
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#ifdef _SAMD21_TC7_INSTANCE_
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TC(TC7, 1, 1),
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#else
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NO_TIMER,
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#endif
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NO_TIMER,
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NO_SERCOM,
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SERCOM(SERCOM5, 2));
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#endif
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#ifdef PIN_PB23
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PIN(PB23, false, NO_ADC_INPUT,
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#ifdef _SAMD21_TC7_INSTANCE_
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TC(TC7, 1, 1),
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#else
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NO_TIMER,
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#endif
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NO_TIMER,
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NO_SERCOM,
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SERCOM(SERCOM5, 3));
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#endif
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#ifdef PIN_PA27
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PIN(PA27, false, NO_ADC_INPUT,
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NO_TIMER,
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NO_TIMER,
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NO_SERCOM,
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NO_SERCOM);
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#endif
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#ifdef PIN_PA28
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PIN(PA28, false, NO_ADC_INPUT,
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NO_TIMER,
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NO_TIMER,
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NO_SERCOM,
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NO_SERCOM);
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#endif
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#ifdef PIN_PA30
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PIN(PA30, false, NO_ADC_INPUT,
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TCC(TCC1, 0, 0),
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NO_TIMER,
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NO_SERCOM,
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SERCOM(SERCOM1, 2));
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#endif
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#ifdef PIN_PA31
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PIN(PA31, false, NO_ADC_INPUT,
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TCC(TCC1, 1, 1),
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NO_TIMER,
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NO_SERCOM,
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SERCOM(SERCOM1, 3));
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#endif
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#ifdef PIN_PB30
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PIN(PB30, false, NO_ADC_INPUT,
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TCC(TCC0, 0, 0),
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TCC(TCC1, 2, 2),
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NO_SERCOM,
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SERCOM(SERCOM5, 0));
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#endif
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#ifdef PIN_PB31
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PIN(PB31, false, NO_ADC_INPUT,
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TCC(TCC0, 1, 1),
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TCC(TCC1, 3, 3),
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NO_SERCOM,
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SERCOM(SERCOM5, 1));
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#endif
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#ifdef PIN_PB00
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PIN(PB00, true, ADC_POSITIVE_INPUT_PIN8,
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#ifdef _SAMD21_TC7_INSTANCE_
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TC(TC7, 0, 0),
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#else
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NO_TIMER,
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#endif
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NO_TIMER,
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NO_SERCOM,
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SERCOM(SERCOM5, 2));
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#endif
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#ifdef PIN_PB01
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PIN(PB01, true, ADC_POSITIVE_INPUT_PIN9,
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#ifdef _SAMD21_TC7_INSTANCE_
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TC(TC7, 1, 1),
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#else
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NO_TIMER,
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#endif
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NO_TIMER,
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NO_SERCOM,
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SERCOM(SERCOM5, 3));
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#endif
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#ifdef PIN_PB02
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PIN(PB02, true, ADC_POSITIVE_INPUT_PIN10,
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#ifdef _SAMD21_TC6_INSTANCE_
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TC(TC6, 0, 0),
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#else
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NO_TIMER,
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#endif
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NO_TIMER,
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NO_SERCOM,
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SERCOM(SERCOM5, 0));
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#endif
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#ifdef PIN_PB03
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PIN(PB03, true, ADC_POSITIVE_INPUT_PIN11,
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#ifdef _SAMD21_TC6_INSTANCE_
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TC(TC6, 1, 1),
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#else
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NO_TIMER,
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#endif
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NO_TIMER,
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NO_SERCOM,
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SERCOM(SERCOM5, 1));
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#endif
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