1/* 2 * Device driver for Specialix range (SI/XIO) of serial line multiplexors. 3 * 4 * Copyright (C) 2000, Peter Wemm <peter@netplex.com.au> 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notices, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notices, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY ``AS IS'' AND ANY EXPRESS OR IMPLIED 16 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 17 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN 18 * NO EVENT SHALL THE AUTHORS BE LIABLE. 19 *
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25#include <sys/param.h> 26#include <sys/systm.h> 27#include <sys/kernel.h> 28#include <sys/bus.h> 29#include <machine/bus.h> 30#include <sys/rman.h> 31#include <machine/resource.h> 32 33#include <dev/si/sireg.h> 34#include <dev/si/sivar.h> 35 36#include <dev/eisa/eisaconf.h> 37 38static int 39si_eisa_probe(device_t dev) 40{ 41 u_long iobase; 42 u_long maddr; 43 int irq; 44 45 if (eisa_get_id(dev) != SIEISADEVID) 46 return ENXIO; 47 48 device_set_desc(dev, "Specialix SI/XIO EISA host card"); 49 50 iobase = (eisa_get_slot(dev) * EISA_SLOT_SIZE) + SIEISABASE; 51 eisa_add_iospace(dev, iobase, SIEISAIOSIZE, RESVADDR_NONE); 52 53 maddr = (inb(iobase+1) << 24) | (inb(iobase) << 16); 54 eisa_add_mspace(dev, maddr, SIEISA_MEMSIZE, RESVADDR_NONE); 55 56 irq = ((inb(iobase+2) >> 4) & 0xf); 57 eisa_add_intr(dev, irq, EISA_TRIGGER_LEVEL); /* XXX shared? */ 58 59 return (0); 60} 61 62static int 63si_eisa_attach(device_t dev) 64{ 65 struct si_softc *sc; 66 void *ih; 67 int error; 68 69 error = 0; 70 ih = NULL; 71 sc = device_get_softc(dev); 72 73 sc->sc_type = SIEISA; 74 75 sc->sc_port_rid = 0; 76 sc->sc_port_res = bus_alloc_resource(dev, SYS_RES_IOPORT, 77 &sc->sc_port_rid, 78 0, ~0, 1, RF_ACTIVE); 79 if (!sc->sc_port_res) { 80 device_printf(dev, "couldn't allocate ioports\n"); 81 goto fail; 82 } 83 sc->sc_iobase = rman_get_start(sc->sc_port_res); 84 85 sc->sc_mem_rid = 0; 86 sc->sc_mem_res = bus_alloc_resource(dev, SYS_RES_MEMORY, 87 &sc->sc_mem_rid, 88 0, ~0, 1, RF_ACTIVE); 89 if (!sc->sc_mem_res) { 90 device_printf(dev, "couldn't allocate iomemory"); 91 goto fail; 92 } 93 sc->sc_paddr = (caddr_t)rman_get_start(sc->sc_mem_res); 94 sc->sc_maddr = rman_get_virtual(sc->sc_mem_res); 95 96 sc->sc_irq_rid = 0; 97 sc->sc_irq_res = bus_alloc_resource(dev, SYS_RES_IRQ, &sc->sc_irq_rid, 98 0, ~0, 1, RF_ACTIVE | RF_SHAREABLE); 99 if (!sc->sc_irq_res) { 100 device_printf(dev, "couldn't allocate interrupt"); 101 goto fail; 102 } 103 sc->sc_irq = rman_get_start(sc->sc_irq_res); 104 error = bus_setup_intr(dev, sc->sc_irq_res, INTR_TYPE_TTY, 105 si_intr, sc,&ih); 106 if (error) { 107 device_printf(dev, "couldn't activate interrupt"); 108 goto fail; 109 } 110 111 error = siattach(dev); 112 if (error) 113 goto fail; 114 return (0); /* success */ 115 116fail: 117 if (error == 0) 118 error = ENXIO; 119 if (sc->sc_irq_res) { 120 if (ih) 121 bus_teardown_intr(dev, sc->sc_irq_res, ih); 122 bus_release_resource(dev, SYS_RES_IRQ, 123 sc->sc_irq_rid, sc->sc_irq_res); 124 sc->sc_irq_res = 0; 125 } 126 if (sc->sc_mem_res) { 127 bus_release_resource(dev, SYS_RES_MEMORY, 128 sc->sc_mem_rid, sc->sc_mem_res); 129 sc->sc_mem_res = 0; 130 } 131 if (sc->sc_port_res) { 132 bus_release_resource(dev, SYS_RES_IOPORT, 133 sc->sc_port_rid, sc->sc_port_res); 134 sc->sc_port_res = 0; 135 } 136 return (error); 137} 138 139static device_method_t si_eisa_methods[] = { 140 /* Device interface */ 141 DEVMETHOD(device_probe, si_eisa_probe), 142 DEVMETHOD(device_attach, si_eisa_attach), 143 144 { 0, 0 } 145}; 146 147static driver_t si_eisa_driver = { 148 "si", 149 si_eisa_methods, 150 sizeof(struct si_softc), 151}; 152 153DRIVER_MODULE(si, eisa, si_eisa_driver, si_devclass, 0, 0);
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