Implement reset_reason for raspberrypi port
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@ -34,6 +34,11 @@
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#include "src/rp2_common/hardware_adc/include/hardware/adc.h"
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#include "src/rp2_common/hardware_clocks/include/hardware/clocks.h"
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#include "src/rp2040/hardware_regs/include/hardware/regs/vreg_and_chip_reset.h"
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#include "src/rp2040/hardware_regs/include/hardware/regs/watchdog.h"
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#include "src/rp2040/hardware_structs/include/hardware/structs/vreg_and_chip_reset.h"
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#include "src/rp2040/hardware_structs/include/hardware/structs/watchdog.h"
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float common_hal_mcu_processor_get_temperature(void) {
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adc_init();
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adc_set_temp_sensor_enabled(true);
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@ -60,5 +65,34 @@ void common_hal_mcu_processor_get_uid(uint8_t raw_id[]) {
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}
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mcu_reset_reason_t common_hal_mcu_processor_get_reset_reason(void) {
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return RESET_REASON_UNKNOWN;
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mcu_reset_reason_t reason = RESET_REASON_UNKNOWN;
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uint32_t watchdog_reset_reg = watchdog_hw->reason;
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uint32_t chip_reset_reg = vreg_and_chip_reset_hw->chip_reset;
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if (chip_reset_reg & VREG_AND_CHIP_RESET_CHIP_RESET_HAD_PSM_RESTART_BITS) {
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reason = RESET_REASON_RESCUE_DEBUG;
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}
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if (chip_reset_reg & VREG_AND_CHIP_RESET_CHIP_RESET_HAD_RUN_BITS) {
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reason = RESET_REASON_RESET_PIN;
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}
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if (chip_reset_reg & VREG_AND_CHIP_RESET_CHIP_RESET_HAD_POR_BITS) {
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// NOTE: This register is also used for brownout, but there is no way to differentiate between power on and brown out
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reason = RESET_REASON_POWER_ON;
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}
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// Check watchdog after chip reset since watchdog doesn't clear chip_reset, while chip_reset clears the watchdog
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if (watchdog_reset_reg & WATCHDOG_REASON_TIMER_BITS) {
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// This bit can also be set during a software reset because the pico-sdk performs a software reset by setting an extremely low timeout on the watchdog, rather than triggering a watchdog reset manually
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reason = RESET_REASON_WATCHDOG;
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}
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if (watchdog_reset_reg & WATCHDOG_REASON_FORCE_BITS) {
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reason = RESET_REASON_SOFTWARE;
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}
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return reason;
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}
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@ -36,6 +36,7 @@ MAKE_ENUM_VALUE(mcu_reset_reason_type, reset_reason, DEEP_SLEEP_ALARM, RESET_REA
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MAKE_ENUM_VALUE(mcu_reset_reason_type, reset_reason, RESET_PIN, RESET_REASON_RESET_PIN);
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MAKE_ENUM_VALUE(mcu_reset_reason_type, reset_reason, WATCHDOG, RESET_REASON_WATCHDOG);
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MAKE_ENUM_VALUE(mcu_reset_reason_type, reset_reason, UNKNOWN, RESET_REASON_UNKNOWN);
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MAKE_ENUM_VALUE(mcu_reset_reason_type, reset_reason, RESCUE_DEBUG, RESET_REASON_RESCUE_DEBUG);
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//| class ResetReason:
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//| """The reason the microntroller was last reset"""
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@ -61,6 +62,9 @@ MAKE_ENUM_VALUE(mcu_reset_reason_type, reset_reason, UNKNOWN, RESET_REASON_UNKNO
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//| UNKNOWN: object
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//| """The microntroller restarted for an unknown reason."""
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//|
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//| RESCUE_DEBUG: object
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//| """The microntroller was reset by the rescue debug port."""
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//|
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MAKE_ENUM_MAP(mcu_reset_reason) {
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MAKE_ENUM_MAP_ENTRY(reset_reason, POWER_ON),
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MAKE_ENUM_MAP_ENTRY(reset_reason, BROWNOUT),
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@ -69,6 +73,7 @@ MAKE_ENUM_MAP(mcu_reset_reason) {
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MAKE_ENUM_MAP_ENTRY(reset_reason, RESET_PIN),
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MAKE_ENUM_MAP_ENTRY(reset_reason, WATCHDOG),
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MAKE_ENUM_MAP_ENTRY(reset_reason, UNKNOWN),
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MAKE_ENUM_MAP_ENTRY(reset_reason, RESCUE_DEBUG),
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};
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STATIC MP_DEFINE_CONST_DICT(mcu_reset_reason_locals_dict, mcu_reset_reason_locals_table);
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@ -38,6 +38,7 @@ typedef enum {
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RESET_REASON_RESET_PIN,
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RESET_REASON_WATCHDOG,
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RESET_REASON_UNKNOWN,
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RESET_REASON_RESCUE_DEBUG,
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} mcu_reset_reason_t;
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extern const mp_obj_type_t mcu_reset_reason_type;
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