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[Bug 1001161] New: hal_interrupt_mask() interrupt lost


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           Summary: hal_interrupt_mask() interrupt lost
           Product: eCos
           Version: CVS
          Platform: All
        OS/Version: Cortex-M
            Status: UNCONFIRMED
          Severity: enhancement
          Priority: low
         Component: HAL
        AssignedTo: unassigned@bugs.ecos.sourceware.org
        ReportedBy: uholeschak@bihl-wiedemann.de
                CC: ecos-bugs@ecos.sourceware.org
             Class: Advice Request


The function hal_interrupt_mask() masks the interrupt in the NVIC and also
disables the interrupt source by calling HAL_VAR_INTERRUPT_MASK.

If i understand the documentation of cyg_interrupt_mask() and
cyg_interrupt_unmask() correctly, the function pair is intended to be a
possibility to mask the interrupt in critical sections (and not to disable the
interrupt).

The problem is now, that the call of HAL_VAR_INTERRUPT_MASK() disables the
interrupt source, so every interrupt in the mask period is lost.

Perhaps it would be a solution not to call HAL_VAR_INTERRUPT_MASK() from
hal_interrupt_mask().
If the user wants to enable the interrupt source he could call this function
directly ...

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