FreeCalypso > hg > freecalypso-tools
view libpwon/duart28c.c @ 924:d452188587b4
rvinterf: begin change to backslash escape output format
Right now throughout the rvinterf suite, any time we emit output that
is expected to be ASCII, but may contain non-printable garbage, we use
'cat -v' form of garbage character representation. Unfortunately, this
transformation is lossy (can't be reversed 100% reliably in the user's
wetware), hence we would like to migrate to C-style backslash escapes,
including doubling of any already-present backslashes - this escape
mechanism is lossless. Begin this change by converting the output
of RV and L1 traces in rvinterf and rvtdump.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Tue, 23 May 2023 03:10:50 +0000 |
parents | 7d1df6d831e4 |
children |
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#include <sys/types.h> #include <sys/ioctl.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <strings.h> #include <unistd.h> extern int target_fd; int bootctrl_duart28c_mode; static int mctl_arg; bootctrl_check_duart28c(bc_name) char *bc_name; { if (!strcmp(bc_name, "dtr")) { bootctrl_duart28c_mode = 1; mctl_arg = TIOCM_DTR; return 1; } if (!strcmp(bc_name, "rts")) { bootctrl_duart28c_mode = 1; mctl_arg = TIOCM_RTS; return 1; } return 0; } void fork_duart28c_pulse() { int i; i = fork(); if (i < 0) { perror("fork"); exit(1); } if (i) return; ioctl(target_fd, TIOCMBIS, &mctl_arg); usleep(50000); ioctl(target_fd, TIOCMBIC, &mctl_arg); exit(0); }