diff options
Diffstat (limited to 'lib/libtermcap/tospeed.c')
-rw-r--r-- | lib/libtermcap/tospeed.c | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/lib/libtermcap/tospeed.c b/lib/libtermcap/tospeed.c new file mode 100644 index 0000000..89c37aa --- /dev/null +++ b/lib/libtermcap/tospeed.c @@ -0,0 +1,71 @@ +/* + * Copyright (C) 1995 by Andrey A. Chernov, Moscow, Russia. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +extern short ospeed; + +static struct stable { + long speed; + short code; +} table[] = { + {115200,17}, + {57600, 16}, + {38400, 15}, + {19200, 14}, + {9600, 13}, + {4800, 12}, + {2400, 11}, + {1800, 10}, + {1200, 9}, + {600, 8}, + {300, 7}, + {200, 6}, + {150, 5}, + {134, 4}, + {110, 3}, + {75, 2}, + {50, 1}, + {0, 0}, + {-1, -1} +}; + +void _set_ospeed(long speed) +{ + struct stable *stable; + + if (speed == 0) { + ospeed = 0; + return; + } + for (stable = table; stable->speed > 0; stable++) { + /* nearest one, rounded down */ + if (stable->speed <= speed) { + ospeed = stable->code; + return; + } + } + ospeed = 1; /* 50, min and not hangup */ +} + |