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/*-
* 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("$FreeBSD$");
#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);
}
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