/* $NetBSD: lpt_pcctwo.c,v 1.2 1999/02/14 17:54:28 scw Exp $ */ /*- * Copyright (c) 1999 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Steve C. Woodford. * * 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. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the NetBSD * Foundation, Inc. and its contributors. * 4. Neither the name of The NetBSD Foundation nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``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 FOUNDATION OR CONTRIBUTORS * 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. */ /* * Device Driver back-end for the PCCChip2's parallel printer port */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include static int lpt_pcctwo_intr __P((void *)); static void lpt_pcctwo_open __P((struct lpt_softc *, int)); static void lpt_pcctwo_close __P((struct lpt_softc *)); static void lpt_pcctwo_iprime __P((struct lpt_softc *)); static void lpt_pcctwo_speed __P((struct lpt_softc *, int)); static int lpt_pcctwo_notrdy __P((struct lpt_softc *, int)); static void lpt_pcctwo_wr_data __P((struct lpt_softc *, u_char)); struct lpt_funcs lpt_pcctwo_funcs = { lpt_pcctwo_open, lpt_pcctwo_close, lpt_pcctwo_iprime, lpt_pcctwo_speed, lpt_pcctwo_notrdy, lpt_pcctwo_wr_data }; /* * Autoconfig stuff */ static int lpt_pcctwo_match __P((struct device *, struct cfdata *, void *)); static void lpt_pcctwo_attach __P((struct device *, struct device *, void *)); struct cfattach lpt_pcctwo_ca = { sizeof(struct lpt_softc), lpt_pcctwo_match, lpt_pcctwo_attach }; extern struct cfdriver lpt_cd; /*ARGSUSED*/ static int lpt_pcctwo_match(parent, cf, args) struct device *parent; struct cfdata *cf; void *args; { struct pcc_attach_args *pa = args; if (strcmp(pa->pa_name, lpt_cd.cd_name)) return (0); pa->pa_ipl = cf->pcccf_ipl; return (1); } /*ARGSUSED*/ static void lpt_pcctwo_attach(parent, self, args) struct device *parent, *self; void *args; { struct lpt_softc *sc = (void *)self; struct pcc_attach_args *pa = args; struct pcctwo *regs; /* * Get pointer to regs */ regs = sc->sc_regs = (void *) PCCTWO_VADDR(pa->pa_offset); sc->sc_ipl = pa->pa_ipl & PCCTWO_ICR_LEVEL_MASK; sc->sc_laststatus = 0; sc->sc_funcs = &lpt_pcctwo_funcs; printf(": PCCchip2 Parallel Printer\n"); /* * Disable interrupts until device is opened */ regs->prt_ack_icr = 0; regs->prt_fault_icr = 0; regs->prt_sel_icr = 0; regs->prt_pe_icr = 0; regs->prt_busy_icr = 0; regs->prt_ctrl = 0; /* * Main attachment code */ lpt_attach_subr(sc); /* * Hook into the printer interrupt */ pcctwointr_establish(PCCTWOV_PRT_ACK, lpt_pcctwo_intr, sc->sc_ipl, sc); } /* * Handle printer interrupts */ int lpt_pcctwo_intr(arg) void *arg; { struct lpt_softc *sc = (struct lpt_softc *)arg; struct pcctwo *regs = sc->sc_regs; int i; /* is printer online and ready for output */ if (lpt_pcctwo_notrdy(sc, 0) || lpt_pcctwo_notrdy(sc, 1)) return 0; i = lpt_intr(sc); if ( regs->prt_input_sr & PCCTWO_PRT_IN_SR_PINT ) regs->prt_ack_icr = sc->sc_icr | PCCTWO_ICR_ICLR; return i; } static void lpt_pcctwo_open(sc, int_ena) struct lpt_softc *sc; int int_ena; { struct pcctwo *regs = sc->sc_regs; int sps; regs->prt_ack_icr = PCCTWO_ICR_ICLR | PCCTWO_ICR_EDGE; regs->prt_ctrl |= PCCTWO_PRT_CTRL_DOEN; if ( int_ena == 0 ) { sps = splhigh(); sc->sc_icr = sc->sc_ipl | PCCTWO_ICR_EDGE; regs->prt_ack_icr = sc->sc_icr; splx(sps); } } static void lpt_pcctwo_close(sc) struct lpt_softc *sc; { struct pcctwo *regs = sc->sc_regs; regs->prt_ack_icr = PCCTWO_ICR_ICLR | PCCTWO_ICR_EDGE; regs->prt_ctrl = 0; } static void lpt_pcctwo_iprime(sc) struct lpt_softc *sc; { struct pcctwo *regs = sc->sc_regs; regs->prt_ctrl |= PCCTWO_PRT_CTRL_INP; delay(100); regs->prt_ctrl &= ~PCCTWO_PRT_CTRL_INP; delay(100); } static void lpt_pcctwo_speed(sc, speed) struct lpt_softc *sc; int speed; { struct pcctwo *regs = sc->sc_regs; if ( speed == LPT_STROBE_FAST ) regs->prt_ctrl |= PCCTWO_PRT_CTRL_FAST; else regs->prt_ctrl &= ~PCCTWO_PRT_CTRL_FAST; } static int lpt_pcctwo_notrdy(sc, err) struct lpt_softc *sc; int err; { struct pcctwo *regs = sc->sc_regs; u_char status; u_char new; #define LPS_INVERT (PCCTWO_PRT_IN_SR_SEL) #define LPS_MASK (PCCTWO_PRT_IN_SR_SEL | PCCTWO_PRT_IN_SR_FLT | \ PCCTWO_PRT_IN_SR_BSY | PCCTWO_PRT_IN_SR_PE) status = (regs->prt_input_sr ^ LPS_INVERT) & LPS_MASK; if ( err ) { new = status & ~sc->sc_laststatus; sc->sc_laststatus = status; if ( new & PCCTWO_PRT_IN_SR_SEL ) log(LOG_NOTICE, "%s: offline\n", sc->sc_dev.dv_xname); else if ( new & PCCTWO_PRT_IN_SR_PE ) log(LOG_NOTICE, "%s: out of paper\n", sc->sc_dev.dv_xname); else if ( new & PCCTWO_PRT_IN_SR_FLT ) log(LOG_NOTICE, "%s: output error\n", sc->sc_dev.dv_xname); } return status; } static void lpt_pcctwo_wr_data(sc, data) struct lpt_softc *sc; u_char data; { struct pcctwo *regs = sc->sc_regs; regs->prt_data = (u_short) data; }