e2e050c8ef
This allows replacing "sys/eventfilter.h" includes with "sys/_eventfilter.h"
in other header files (e.g., sys/{bus,conf,cpu}.h) and reduces header
pollution substantially.
EVENTHANDLER_DECLARE and EVENTHANDLER_LIST_DECLAREs were moved out of .c
files into appropriate headers (e.g., sys/proc.h, powernv/opal.h).
As a side effect of reduced header pollution, many .c files and headers no
longer contain needed definitions. The remainder of the patch addresses
adding appropriate includes to fix those files.
LOCK_DEBUG and LOCK_FILE_LINE_ARG are moved to sys/_lock.h, as required by
sys/mutex.h since r326106 (but silently protected by header pollution prior
to this change).
No functional change (intended). Of course, any out of tree modules that
relied on header pollution for sys/eventhandler.h, sys/lock.h, or
sys/mutex.h inclusion need to be fixed. __FreeBSD_version has been bumped.
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||
|---|---|---|
| .. | ||
| ow_temp.c | ||
| ow.c | ||
| ow.h | ||
| owc_gpiobus.c | ||
| owll_if.m | ||
| owll.h | ||
| own_if.m | ||
| own.h | ||
| README.txt | ||
Quick Design Document for 1-wire bus In new bus terms, 1-wire devices are attached to 1-wire buses (ow) which are attached to a one wire bridge (owc). The implementation follows the terminology used in the Maxim AN927 Application note which defines the 1-wire bus as implemented for the iButton product. This is considered to be the canonical definition of the 1-wire bus. This means that the 1-wire bridge will implement the owll(9) interface. ow is one wire. ll is for Link Level to mirror the ISO stack terminology used by AN927. The 1-wire bus is implemented in the ow(4) device, which implements the own(9) interface (n for network, the layer described in the AN927). The presentation layer and above is the responsibility of the client device drivers to implement. Client drivers may only call the own(9) interface. The ow(4) driver calls the owll(9) interface and implements the own(9). $FreeBSD$