/* $OpenBSD: apio.c,v 1.7 2003/06/27 01:50:52 jason Exp $ */ /* * Copyright (c) 2002 Jason L. Wright (jason@thought.net) * 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. * * Effort sponsored in part by the Defense Advanced Research Projects * Agency (DARPA) and Air Force Research Laboratory, Air Force * Materiel Command, USAF, under agreement number F30602-01-2-0537. * */ /* * Driver for Aurora 210SJ parallel ports. */ #include <sys/types.h> #include <sys/param.h> #include <sys/systm.h> #include <sys/kernel.h> #include <sys/device.h> #include <sys/conf.h> #include <sys/timeout.h> #include <sys/tty.h> #include <machine/bus.h> #include <machine/autoconf.h> #include <machine/openfirm.h> #include <dev/sbus/sbusvar.h> #include <dev/sbus/asioreg.h> #include <dev/ic/lptvar.h> #include "apio.h" #include "lpt.h" struct apio_softc { struct device sc_dev; bus_space_tag_t sc_bt; bus_space_handle_t sc_csr_h; bus_space_handle_t sc_clk_h; bus_space_handle_t sc_lpt_h; void *sc_ih; struct device *sc_port; }; struct apio_attach_args { char *aaa_name; bus_space_tag_t aaa_iot; bus_space_handle_t aaa_ioh; bus_space_handle_t aaa_clkh; u_int32_t aaa_pri; u_int8_t aaa_inten; }; int apio_match(struct device *, void *, void *); void apio_attach(struct device *, struct device *, void *); int apio_print(void *, const char *); void apio_intr_enable(struct device *, u_int8_t); struct cfattach apio_ca = { sizeof(struct apio_softc), apio_match, apio_attach }; struct cfdriver apio_cd = { NULL, "apio", DV_DULL }; int apio_match(struct device *parent, void *match, void *aux) { struct sbus_attach_args *sa = aux; if (strcmp(sa->sa_name, "pio1") == 0) return (1); return (0); } void apio_attach(struct device *parent, struct device *self, void *aux) { struct apio_softc *sc = (void *)self; struct sbus_attach_args *sa = aux; struct apio_attach_args aaa; char *model; sc->sc_bt = sa->sa_bustag; model = getpropstring(sa->sa_node, "model"); if (model == NULL) { printf(": empty model, unsupported\n"); return; } if (strcmp(model, "210sj") != 0) { printf(": unsupported model %s\n", model); return; } if (sa->sa_nreg < 3) { printf(": %d registers expected, got %d\n", 3, sa->sa_nreg); return; } if (sbus_bus_map(sa->sa_bustag, sa->sa_reg[0].sbr_slot, sa->sa_reg[0].sbr_offset, sa->sa_reg[0].sbr_size, 0, 0, &sc->sc_csr_h)) { printf(": couldn't map csr\n"); return; } if (sbus_bus_map(sa->sa_bustag, sa->sa_reg[1].sbr_slot, sa->sa_reg[1].sbr_offset, sa->sa_reg[1].sbr_size, 0, 0, &sc->sc_clk_h)) { printf(": couldn't map clk\n"); return; } if (sbus_bus_map(sa->sa_bustag, sa->sa_reg[2].sbr_slot, sa->sa_reg[2].sbr_offset, sa->sa_reg[2].sbr_size, 0, 0, &sc->sc_lpt_h)) { printf(": couldn't map clk\n"); return; } printf(": %s\n", model); aaa.aaa_name = "lpt"; aaa.aaa_iot = sc->sc_bt; aaa.aaa_ioh = sc->sc_lpt_h; aaa.aaa_clkh = sc->sc_clk_h; aaa.aaa_inten = ASIO_CSR_SJ_PAR_INTEN; aaa.aaa_pri = sa->sa_intr[0].sbi_pri; sc->sc_port = config_found(self, &aaa, apio_print); } int apio_print(void *aux, const char *name) { struct apio_attach_args *aaa = aux; if (name != NULL) printf("%s at %s", aaa->aaa_name, name); return (UNCONF); } #if NLPT_APIO > 0 int lpt_apio_match(struct device *, void *, void *); void lpt_apio_attach(struct device *, struct device *, void *); int lpt_apio_intr(void *); struct lpt_apio_softc { struct lpt_softc sc_lpt; bus_space_handle_t sc_clk_h; void *sc_ih; }; struct cfattach lpt_apio_ca = { sizeof(struct lpt_apio_softc), lpt_apio_match, lpt_apio_attach }; void apio_intr_enable(struct device *dv, u_int8_t en) { struct apio_softc *sc = (struct apio_softc *)dv; u_int8_t csr; csr = bus_space_read_1(sc->sc_bt, sc->sc_csr_h, 0); csr &= ~(ASIO_CSR_SBUS_INT7 | ASIO_CSR_SBUS_INT6); csr |= ASIO_CSR_SBUS_INT5 | en; bus_space_write_1(sc->sc_bt, sc->sc_csr_h, 0, csr); } int lpt_apio_match(struct device *parent, void *match, void *aux) { return (1); } void lpt_apio_attach(struct device *parent, struct device *self, void *aux) { struct lpt_apio_softc *sc = (struct lpt_apio_softc *)self; struct apio_attach_args *aaa = aux; sc->sc_lpt.sc_state = 0; sc->sc_lpt.sc_iot = aaa->aaa_iot; sc->sc_lpt.sc_ioh = aaa->aaa_ioh; sc->sc_clk_h = aaa->aaa_clkh; sc->sc_ih = bus_intr_establish(aaa->aaa_iot, aaa->aaa_pri, IPL_TTY, 0, lpt_apio_intr, sc, self->dv_xname); if (sc->sc_ih == NULL) { printf(": cannot allocate intr\n"); return; } apio_intr_enable(parent, aaa->aaa_inten); lpt_attach_common(&sc->sc_lpt); } int lpt_apio_intr(void *vsc) { struct lpt_apio_softc *sc = vsc; int r; r = lptintr(&sc->sc_lpt); bus_space_read_1(sc->sc_lpt.sc_iot, sc->sc_clk_h, 0); return (r); } #endif