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.
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24#include <sys/param.h> 25#include <sys/systm.h> 26#include <sys/kernel.h> 27#include <sys/bus.h> 28#include <machine/bus.h> 29#include <sys/rman.h> 30#include <machine/resource.h> 31 32#include <dev/si/sireg.h> 33#include <dev/si/sivar.h> 34 35#include <dev/pci/pcivar.h> 36 37static int 38si_pci_probe(device_t dev) 39{ 40 const char *desc = NULL; 41 42 switch (pci_get_devid(dev)) { 43 case 0x400011cb: 44 desc = "Specialix SI/XIO PCI host card"; 45 break; 46 case 0x200011cb: 47 if (pci_read_config(dev, SIJETSSIDREG, 4) == 0x020011cb) 48 desc = "Specialix SX PCI host card"; 49 break; 50 } 51 if (desc) { 52 device_set_desc(dev, desc); 53 return 0; 54 } 55 return ENXIO; 56} 57 58static int 59si_pci_attach(device_t dev) 60{ 61 struct si_softc *sc; 62 void *ih; 63 int error; 64 65 error = 0; 66 ih = NULL; 67 sc = device_get_softc(dev); 68 69 switch (pci_get_devid(dev)) { 70 case 0x400011cb: 71 sc->sc_type = SIPCI; 72 sc->sc_mem_rid = SIPCIBADR; 73 break; 74 case 0x200011cb: 75 sc->sc_type = SIJETPCI; 76 sc->sc_mem_rid = SIJETBADR; 77 break; 78 } 79 80 sc->sc_mem_res = bus_alloc_resource(dev, SYS_RES_MEMORY, 81 &sc->sc_mem_rid, 82 0, ~0, 1, RF_ACTIVE); 83 if (!sc->sc_mem_res) { 84 device_printf(dev, "couldn't map memory\n"); 85 goto fail; 86 } 87 sc->sc_paddr = (caddr_t)rman_get_start(sc->sc_mem_res); 88 sc->sc_maddr = rman_get_virtual(sc->sc_mem_res); 89 90 sc->sc_irq_rid = 0; 91 sc->sc_irq_res = bus_alloc_resource(dev, SYS_RES_IRQ, &sc->sc_irq_rid, 92 0, ~0, 1, RF_ACTIVE | RF_SHAREABLE); 93 if (!sc->sc_irq_res) { 94 device_printf(dev, "couldn't map interrupt\n"); 95 goto fail; 96 } 97 sc->sc_irq = rman_get_start(sc->sc_irq_res); 98 error = bus_setup_intr(dev, sc->sc_irq_res, INTR_TYPE_TTY, 99 si_intr, sc, &ih); 100 if (error) { 101 device_printf(dev, "could not activate interrupt\n"); 102 goto fail; 103 } 104 105 error = siattach(dev); 106 if (error) 107 goto fail; 108 return (0); /* success */ 109 110fail: 111 if (error == 0) 112 error = ENXIO; 113 if (sc->sc_irq_res) { 114 if (ih) 115 bus_teardown_intr(dev, sc->sc_irq_res, ih); 116 bus_release_resource(dev, SYS_RES_IRQ, 117 sc->sc_irq_rid, sc->sc_irq_res); 118 sc->sc_irq_res = 0; 119 } 120 if (sc->sc_mem_res) { 121 bus_release_resource(dev, SYS_RES_MEMORY, 122 sc->sc_mem_rid, sc->sc_mem_res); 123 sc->sc_mem_res = 0; 124 } 125 return (error); 126} 127 128static device_method_t si_pci_methods[] = { 129 /* Device interface */ 130 DEVMETHOD(device_probe, si_pci_probe), 131 DEVMETHOD(device_attach, si_pci_attach), 132 133 { 0, 0 } 134}; 135 136static driver_t si_pci_driver = { 137 "si", 138 si_pci_methods, 139 sizeof(struct si_softc), 140}; 141 142DRIVER_MODULE(si, pci, si_pci_driver, si_devclass, 0, 0);
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