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Moved drain delay into term.c

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This commit is contained in:
Nick Patavalis
2017-12-17 18:38:17 +02:00
parent 2503f0ecfa
commit d1f439b38d
2 changed files with 14 additions and 9 deletions
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14
term.c
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@ -66,6 +66,9 @@
#include "custbaud_osx.h"
#endif
/* Time to wait for UART to clear after a drain (in usec). */
#define DRAIN_DELAY 200000
#include "term.h"
/***************************************************************************/
@ -403,7 +406,8 @@ term_exitfunc (void)
for (i = 0; i < MAX_TERMS; i++) {
if (term.fd[i] == -1)
continue;
tcflush(term.fd[i], TCIOFLUSH);
term_drain(term.fd[i]);
tcflush(term.fd[i], TCIFLUSH);
do {
r = tcsetattr(term.fd[i], TCSANOW, &term.origtermios[i]);
} while ( r < 0 && errno == EINTR );
@ -412,7 +416,7 @@ term_exitfunc (void)
tname = ttyname(term.fd[i]);
if ( ! tname ) tname = "UNKNOWN";
fprintf(stderr, "%s: reset failed for dev %s: %s\n",
fprintf(stderr, "%s: reset failed for dev %s: %s\r\n",
__FUNCTION__, tname, strerror(errno));
}
term.fd[i] = -1;
@ -1613,6 +1617,12 @@ term_drain(int fd)
rval = -1;
break;
}
/* Give some time to the UART to transmit everything. Some
systems and / or drivers corrupt the last character(s) if
the port is immediately reconfigured, even after a
drain. (I guess, drain does not wait for everything to
actually be transitted on the wire). */
if ( DRAIN_DELAY ) usleep(DRAIN_DELAY);
} while (0);