1 /* $OpenBSD: com_ssio.c,v 1.2 2007/06/24 16:28:39 kettenis Exp $ */ 2 3 /* 4 * Copyright (c) 2007 Mark Kettenis 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19 #include <sys/param.h> 20 #include <sys/systm.h> 21 #include <sys/device.h> 22 #include <sys/tty.h> 23 24 #include <machine/bus.h> 25 #include <machine/iomod.h> 26 27 #include <dev/ic/comreg.h> 28 #include <dev/ic/comvar.h> 29 30 #include <hppa/dev/ssiovar.h> 31 32 #define COM_SSIO_FREQ 1843200 33 34 int com_ssio_match(struct device *, void *, void *); 35 void com_ssio_attach(struct device *, struct device *, void *); 36 37 struct cfattach com_ssio_ca = { 38 sizeof(struct com_softc), com_ssio_match, com_ssio_attach 39 }; 40 41 int 42 com_ssio_match(struct device *parent, void *match, void *aux) 43 { 44 struct cfdata *cf = match; 45 struct ssio_attach_args *saa = aux; 46 47 if (strcmp(saa->saa_name, "com") != 0) 48 return (0); 49 50 /* Check locators. */ 51 if (cf->ssiocf_irq != SSIO_UNK_IRQ && cf->ssiocf_irq != saa->saa_irq) 52 return (0); 53 54 return (1); 55 } 56 57 void 58 com_ssio_attach(struct device *parent, struct device *self, void *aux) 59 { 60 struct com_softc *sc = (void *)self; 61 struct ssio_attach_args *saa = aux; 62 63 sc->sc_iot = saa->saa_iot; 64 sc->sc_iobase = saa->saa_iobase; 65 if (bus_space_map(sc->sc_iot, sc->sc_iobase, COM_NPORTS, 66 0, &sc->sc_ioh)) { 67 printf(": cannot map io space\n"); 68 return; 69 } 70 71 if (PAGE0->mem_cons.pz_class == PCL_DUPLEX && 72 PAGE0->mem_cons.pz_hpa == sc->sc_ioh) { 73 bus_space_unmap(sc->sc_iot, sc->sc_ioh, COM_NPORTS); 74 comcnattach(sc->sc_iot, sc->sc_iobase, comdefaultrate, 75 COM_SSIO_FREQ, comconscflag); 76 } 77 78 sc->sc_frequency = COM_SSIO_FREQ; 79 com_attach_subr(sc); 80 81 sc->sc_ih = ssio_intr_establish(IPL_TTY, saa->saa_irq, 82 comintr, sc, sc->sc_dev.dv_xname); 83 } 84