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cpu/avr8_common: Prepare for rework ISR #19777

Merged
merged 6 commits into from
Jul 11, 2023
Merged

cpu/avr8_common: Prepare for rework ISR #19777

merged 6 commits into from
Jul 11, 2023

Commits on Jul 5, 2023

  1. cpu/avr8_common: Split avr8_state 

    The avr8_state store state information used to determine scheduling
and uart irq. This move all uart irq states to avr8_state_uart
variable. It introduce the use of General Purpose IO Register 0
(GPIOR0) when available and now all uarts from xmega can be used.

This is a preparation for future scheduling and irq optimizations.

Signed-off-by: Gerson Fernando Budke <[email protected]>
    @nandojve
    nandojve committed Jul 5, 2023
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  2. cpu/avr8_common: Rework avr8_state variable 

    The avr8_state variable uses bit operation to set/clear the state. This
rework avr8_state to use increment/decrement instead. It introduce the
use of General Purpose IO Register 1 (GPIOR1) when available.

This is a preparation for future scheduling and irq optimizations.

Signed-off-by: Gerson Fernando Budke <[email protected]>
    @nandojve
    nandojve committed Jul 5, 2023
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  3. cpu/avr8_common: Drop useless ret instruction 

    The thread_yield_higher is a normal functions. However it has a non
regular return instruction which is useless. This remove the useless
return on thread_yield_higher to save flash bytes.

Signed-off-by: Gerson Fernando Budke <[email protected]>
    @nandojve
    nandojve committed Jul 5, 2023
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  4. cpu/avr8_common: Add AVR8_ISR macro 

    The current ISR implementation for AVR8 requires use of
avr8_[enter/exit]_isr pair which add some boilerplate on code.
This add AVR8_ISR which clean-up the code and make it simpler
and hides any schedule detail from the user perspective.

This is a preparation for future scheduling and irq optimizations.

Signed-off-by: Gerson Fernando Budke <[email protected]>
    @nandojve
    nandojve committed Jul 5, 2023
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  5. cpu: atmega_common: rtt: Fix vera warnings 

    Signed-off-by: Gerson Fernando Budke <[email protected]>
    @nandojve
    nandojve committed Jul 5, 2023
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  6. drivers: at86rf2xx: at86rf2xx_netdev: Fix vera warnings 

    Signed-off-by: Gerson Fernando Budke <[email protected]>
    @nandojve
    nandojve committed Jul 5, 2023
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