Current Path : /sys/dev/scc/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
Current File : //sys/dev/scc/scc_dev_sab82532.c |
/*- * Copyright (c) 2004-2006 Marcel Moolenaar * 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. */ #include <sys/cdefs.h> __FBSDID("$FreeBSD: release/9.1.0/sys/dev/scc/scc_dev_sab82532.c 157351 2006-04-01 04:51:56Z marcel $"); #include <sys/param.h> #include <sys/systm.h> #include <sys/bus.h> #include <sys/conf.h> #include <machine/bus.h> #include <sys/rman.h> #include <sys/serial.h> #include <dev/scc/scc_bfe.h> #include <dev/scc/scc_bus.h> #include <dev/ic/sab82532.h> #include "scc_if.h" static int sab82532_bfe_attach(struct scc_softc *, int); static int sab82532_bfe_iclear(struct scc_softc *, struct scc_chan *); static int sab82532_bfe_ipend(struct scc_softc *); static int sab82532_bfe_probe(struct scc_softc *); static kobj_method_t sab82532_methods[] = { KOBJMETHOD(scc_attach, sab82532_bfe_attach), KOBJMETHOD(scc_iclear, sab82532_bfe_iclear), KOBJMETHOD(scc_ipend, sab82532_bfe_ipend), KOBJMETHOD(scc_probe, sab82532_bfe_probe), { 0, 0 } }; struct scc_class scc_sab82532_class = { "sab82532 class", sab82532_methods, sizeof(struct scc_softc), .cl_channels = SAB_NCHAN, .cl_class = SCC_CLASS_SAB82532, .cl_modes = SCC_MODE_ASYNC | SCC_MODE_BISYNC | SCC_MODE_HDLC, .cl_range = SAB_CHANLEN, }; static int sab82532_bfe_attach(struct scc_softc *sc, int reset) { struct scc_bas *bas; bas = &sc->sc_bas; return (0); } static int sab82532_bfe_iclear(struct scc_softc *sc, struct scc_chan *ch) { return (0); } static int sab82532_bfe_ipend(struct scc_softc *sc) { struct scc_bas *bas; struct scc_chan *ch; int ipend; int c, ofs; uint8_t isr0, isr1; bas = &sc->sc_bas; ipend = 0; for (c = 0; c < SAB_NCHAN; c++) { ch = &sc->sc_chan[c]; ofs = c * SAB_CHANLEN; mtx_lock_spin(&sc->sc_hwmtx); isr0 = scc_getreg(bas, ofs + SAB_ISR0); isr1 = scc_getreg(bas, ofs + SAB_ISR1); scc_barrier(bas); if (isr0 & SAB_ISR0_TIME) { while (scc_getreg(bas, ofs + SAB_STAR) & SAB_STAR_CEC) ; scc_setreg(bas, ofs + SAB_CMDR, SAB_CMDR_RFRD); scc_barrier(bas); } mtx_unlock_spin(&sc->sc_hwmtx); ch->ch_ipend = 0; if (isr1 & SAB_ISR1_BRKT) ch->ch_ipend |= SER_INT_BREAK; if (isr0 & SAB_ISR0_RFO) ch->ch_ipend |= SER_INT_OVERRUN; if (isr0 & (SAB_ISR0_TCD|SAB_ISR0_RPF)) ch->ch_ipend |= SER_INT_RXREADY; if ((isr0 & SAB_ISR0_CDSC) || (isr1 & SAB_ISR1_CSC)) ch->ch_ipend |= SER_INT_SIGCHG; if (isr1 & SAB_ISR1_ALLS) ch->ch_ipend |= SER_INT_TXIDLE; ipend |= ch->ch_ipend; } return (ipend); } static int sab82532_bfe_probe(struct scc_softc *sc) { struct scc_bas *bas; bas = &sc->sc_bas; return (0); }