Comtrol eCos - Manual (Page 480)

Chapter 32. µITRON API
ER iwup_tsk (
ID tskid )
ER isig_sem (
ID semid )
ER iset_flg (
ID flgid ,
UID setptn )
ER isend_msg (
ID mbxid ,
T_MSG *pk_msg )
Note that ret_int() and the ret_wup() are implemented as macros, containing a “return” statement.
Also note that ret_wup() and the ixxx_yyy() style functions will only work when called from an ISR whose
associated DSR is cyg_uitron_dsr() , as specified in include file < cyg/compat/uitron/uit_ifnc.h > , which
defines the ixxx_yyy() style functions also.
If you are writing interrupt handlers more in the eCos style, with separate ISR and DSR routines both of your own
devising, do not use these special functions from a DSR: use plain
xxx_yyy() style functions (with no ‘i’ prefix)
instead, and do not call any µITRON functions from the ISR at all.
The following functions are not supported in this release:
ER def_int (
UINT dintno,
T_DINT *pk_dint )
ER chg_iXX (
UINT iXXXX )
ER ref_iXX (
UINT * p_iXXXX )
These unsupported functions are all Level C (CPU dependent). Equivalent functionality is available via other eCos-
specific APIs.
Error checking
The following conditions are only checked for, and only return errors if
CYGSEM_UITRON_BAD_PARAMS_RETURN_ERRORS is enabled:
• loc/unl_cpu() : these must only be called in a µITRON task context, else E_CTX.
• dis/ena_int() : the interrupt number must be in range as specified by the platform HAL in qustion, else
E_PAR.
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