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https://github.com/freebsd/freebsd-src
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6bfa9a2d66
After I removed all the unit2minor()/minor2unit() calls from the kernel yesterday, I realised calling minor() everywhere is quite confusing. Character devices now only have the ability to store a unit number, not a minor number. Remove the confusion by using dev2unit() everywhere. This commit could also be considered as a bug fix. A lot of drivers call minor(), while they should actually be calling dev2unit(). In -CURRENT this isn't a problem, but it turns out we never had any problem reports related to that issue in the past. I suspect not many people connect more than 256 pieces of the same hardware. Reviewed by: kib
74 lines
2.5 KiB
C
74 lines
2.5 KiB
C
/*-
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* Copyright (c) Comtrol Corporation <support@comtrol.com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted prodived that the follwoing conditions
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* are met.
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* 1. Redistributions of source code must retain the above copyright
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* notive, this list of conditions and the following disclainer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials prodided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Comtrol Corporation.
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* 4. The name of Comtrol Corporation may not be used to endorse or
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* promote products derived from this software without specific
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* prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY COMTROL CORPORATION ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL COMTROL CORPORATION BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, LIFE OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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/*
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* rpvar.h --- RocketPort data structure includes for FreeBSD
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*/
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#define RP_UNIT(x) dv_unit(x)
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#define RP_PORT(x) (dev2unit(x) & 0x3f)
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#define MAX_RP_PORTS 128
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struct rp_port {
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struct tty * rp_tty; /* cross reference */
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unsigned char state; /* state of dtr */
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int rp_port;
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int rp_flags;
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int rp_unit:2;
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int rp_aiop:2;
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int rp_chan:3;
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int rp_intmask;
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int rp_imask; /* Input mask */
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int rp_fifo_lw;
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int rp_restart;
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int rp_overflows;
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int rp_rts_iflow:1;
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int rp_disable_writes:1;
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int rp_cts:1;
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int rp_waiting:1;
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int rp_xmit_stopped:1;
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CONTROLLER_t * rp_ctlp;
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CHANNEL_t rp_channel;
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unsigned char TxBuf[TXFIFO_SIZE];
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unsigned char RxBuf[RXFIFO_SIZE];
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};
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/* Actually not used */
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#ifdef notdef
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extern struct termios deftermios;
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#endif /* notdef */
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