Class ArchXT_TimerB

Nested Relationships

Nested Types

Inheritance Relationships

Base Types

Class Documentation

class ArchXT_TimerB : public Peripheral, public SignalHook

Implementation of a Timer/Counter type B for the XT core series.

Unsupported features:

  • Debug run override

  • Synchronize Update (SYNCUPD)

Public Types

enum SignalId

Values:

enumerator Signal_Capture
enumerator Signal_Output
enum CaptureHookTag

Values:

enumerator Tag_Event
enumerator Tag_Count

Public Functions

ArchXT_TimerB(int num, const ArchXT_TimerBConfig &config)
virtual ~ArchXT_TimerB()
virtual bool init(Device &device) override

Virtual method called when the device is initialised. This is where the peripheral can allocate its I/O registers, interrupts or connect signals.

Returns:

boolean indicates the success of all allocations.

virtual void reset() override

Virtual method called when the device is reset. Note that resetting I/O registers is only necessary here if their reset value is not zero.

virtual bool ctlreq(ctlreq_id_t req, ctlreq_data_t *data) override

Virtual method called for a CTL request. The method must return true if the request has been processed.

virtual uint8_t ioreg_read_handler(reg_addr_t addr, uint8_t value) override

Virtual method called when the CPU is reading a I/O register allocated by this peripheral. The value has not been read yet so the module can modify it before the CPU gets it.

Parameters:

  • addr – the register address in I/O space

  • value – current cached value of the register

Returns:

actual value of the register

virtual uint8_t ioreg_peek_handler(reg_addr_t addr, uint8_t value) override

Virtual method called when a debug probe is peeking the value of a register. The value has not been read yet so the module can modify it before the CPU gets it. The difference between a peek and a read is that a peek should not modify the state of the peripheral. By default, ioreg_read_handler is called to obtain the value.

Parameters:

  • addr – the register address in I/O space

  • value – current cached value of the register

Returns:

actual value of the register

virtual void ioreg_write_handler(reg_addr_t addr, const ioreg_write_t &data) override

Virtual method called when the CPU is writing a I/O register allocated by this peripheral. The value has already been written.

Parameters:

  • addr – the register address in I/O space

  • value – the new register content

virtual void sleep(bool on, SleepMode mode) override

Virtual method called when the device enters or exits a sleep mode.

Parameters:

  • on – true when entering a sleep mode, false when exiting it.

  • mode – one of the enum SleepMode values

virtual void raised(const signal_data_t &sigdata, int hooktag) override

Pure virtual callback called during signal raises.

Parameters:

  • sigdata – Data structure passed on when raising a signal

  • hooktag – integer passed on when connecting a hook to a signal. For hooks connected to several signals, it provides a mean to identify the caller.

class _PinDriver : public PinDriver

Public Functions

inline explicit _PinDriver(ctl_id_t per_id)
inline void set_drive(unsigned char d)
inline virtual Pin::controls_t override_gpio(pin_index_t, const Pin::controls_t &controls) override

Stub called when a state resolution is taking place on a pin that the driver is controlling. The reimplementation should make a copy of the controls structure in argument, change its members according to the override state and return the result.

Parameters:

  • pin_index – index of the pin

  • controls – pin controls as configured by the GPIO port controller

Returns:

the controls to apply to the pin