1 /* $OpenBSD: com_dino.c,v 1.4 2007/07/15 19:25:49 kettenis Exp $ */ 2 3 /* 4 * Copyright (c) 2004 Michael Shalayeff 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT, 20 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 22 * SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 24 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 25 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 26 * THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #include <sys/param.h> 30 #include <sys/systm.h> 31 #include <sys/device.h> 32 #include <sys/tty.h> 33 34 #include <machine/bus.h> 35 #include <machine/intr.h> 36 #include <machine/iomod.h> 37 #include <machine/autoconf.h> 38 39 #include <dev/ic/comreg.h> 40 #include <dev/ic/comvar.h> 41 42 #include <hppa/dev/cpudevs.h> 43 44 void *dino_intr_establish(void *sc, int irq, int pri, 45 int (*handler)(void *v), void *arg, const char *name); 46 47 #define COM_DINO_FREQ 7272700 48 49 struct com_dino_regs { 50 u_int8_t reset; 51 u_int8_t pad0[3]; 52 u_int8_t test; 53 #define COM_DINO_PAR_LOOP 0x01 54 #define COM_DINO_CLK_SEL 0x02 55 u_int8_t pad1[3]; 56 u_int32_t iodc; 57 u_int8_t pad2[0x54]; 58 u_int8_t dither; 59 }; 60 61 int com_dino_match(struct device *, void *, void *); 62 void com_dino_attach(struct device *, struct device *, void *); 63 64 struct cfattach com_dino_ca = { 65 sizeof(struct com_softc), com_dino_match, com_dino_attach 66 }; 67 68 int 69 com_dino_match(parent, match, aux) 70 struct device *parent; 71 void *match, *aux; 72 { 73 struct confargs *ca = aux; 74 75 if (ca->ca_type.iodc_type != HPPA_TYPE_FIO || 76 ca->ca_type.iodc_sv_model != HPPA_FIO_GRS232) 77 return (0); 78 79 return (1); 80 /* HOZER comprobe1(ca->ca_iot, ca->ca_hpa + IOMOD_DEVOFFSET); */ 81 } 82 83 void 84 com_dino_attach(parent, self, aux) 85 struct device *parent, *self; 86 void *aux; 87 { 88 struct com_softc *sc = (void *)self; 89 struct confargs *ca = aux; 90 struct com_dino_regs *regs = (struct com_dino_regs *)ca->ca_hpa; 91 92 sc->sc_iot = ca->ca_iot; 93 sc->sc_iobase = (bus_addr_t)ca->ca_hpa + IOMOD_DEVOFFSET; 94 95 if (bus_space_map(sc->sc_iot, sc->sc_iobase, COM_NPORTS, 96 0, &sc->sc_ioh)) { 97 printf(": cannot map io space\n"); 98 return; 99 } 100 101 if (PAGE0->mem_cons.pz_class == PCL_DUPLEX && 102 PAGE0->mem_cons.pz_hpa == ca->ca_hpa) { 103 bus_space_unmap(sc->sc_iot, sc->sc_ioh, COM_NPORTS); 104 comcnattach(sc->sc_iot, sc->sc_iobase, comdefaultrate, 105 COM_DINO_FREQ, comconscflag); 106 } 107 108 /* select clock freq */ 109 regs->test = COM_DINO_CLK_SEL; 110 sc->sc_frequency = COM_DINO_FREQ; 111 112 com_attach_subr(sc); 113 114 sc->sc_ih = dino_intr_establish(parent, ca->ca_irq, IPL_TTY, 115 comintr, sc, sc->sc_dev.dv_xname); 116 } 117