1/* 2 */ 3 4#include <sys/cdefs.h> 5__FBSDID("$FreeBSD: releng/11.0/sys/dev/mcd/mcd_isa.c 274676 2014-11-18 21:51:01Z jhb $"); 6 7#include <sys/param.h> 8#include <sys/systm.h> 9#include <sys/kernel.h> 10#include <sys/module.h> 11#include <sys/conf.h> 12#include <sys/fcntl.h> 13#include <sys/bio.h> 14#include <sys/cdio.h> 15#include <sys/bus.h> 16 17#include <sys/lock.h> 18#include <sys/mutex.h> 19 20#include <machine/bus.h> 21#include <machine/resource.h> 22#include <sys/rman.h> 23 24#include <isa/isavar.h> 25 26#include <dev/mcd/mcdreg.h> 27#include <dev/mcd/mcdvar.h> 28 29static int mcd_isa_probe (device_t); 30static int mcd_isa_attach (device_t); 31static int mcd_isa_detach (device_t); 32 33static int mcd_alloc_resources (device_t); 34static void mcd_release_resources (device_t); 35 36static int 37mcd_isa_probe (device_t dev) 38{ 39 struct mcd_softc * sc; 40 int error; 41 42 /* No pnp support */ 43 if (isa_get_vendorid(dev)) 44 return (ENXIO); 45 46 /* IO port must be configured. */ 47 if (bus_get_resource_start(dev, SYS_RES_IOPORT, 0) == 0) 48 return (ENXIO); 49 50 sc = device_get_softc(dev); 51 sc->dev = dev; 52 sc->port_rid = 0; 53 sc->port_type = SYS_RES_IOPORT; 54 error = mcd_alloc_resources(dev); 55 if (error) 56 goto fail; 57 58 error = mcd_probe(sc); 59 if (error) { 60 device_printf(dev, "Probe failed.\n"); 61 goto fail; 62 } 63 64 device_set_desc(dev, sc->data.name); 65 66fail: 67 mcd_release_resources(dev); 68 return (error); 69} 70 71static int 72mcd_isa_attach (device_t dev) 73{ 74 struct mcd_softc * sc; 75 int error; 76 77 sc = device_get_softc(dev); 78 error = 0; 79 80 sc->dev = dev; 81 sc->port_rid = 0; 82 sc->port_type = SYS_RES_IOPORT; 83 error = mcd_alloc_resources(dev); 84 if (error) 85 goto fail; 86 87 error = mcd_probe(sc); 88 if (error) { 89 device_printf(dev, "Re-Probe failed.\n"); 90 goto fail; 91 } 92 93 error = mcd_attach(sc); 94 if (error) { 95 device_printf(dev, "Attach failed.\n"); 96 goto fail; 97 } 98 99 return (0); 100fail: 101 mcd_release_resources(dev); 102 return (error); 103} 104 105static int 106mcd_isa_detach (device_t dev) 107{ 108 struct mcd_softc * sc; 109 int error; 110 111 sc = device_get_softc(dev); 112 error = 0; 113 114 destroy_dev(sc->mcd_dev_t); 115 116 mcd_release_resources(dev); 117 118 return (error); 119} 120 121static int 122mcd_alloc_resources (device_t dev) 123{ 124 struct mcd_softc * sc; 125 int error; 126 127 sc = device_get_softc(dev); 128 error = 0; 129 mtx_init(&sc->mtx, "mcd", NULL, MTX_DEF); 130 131 if (sc->port_type) { 132 sc->port = bus_alloc_resource_any(dev, sc->port_type, 133 &sc->port_rid, RF_ACTIVE); 134 if (sc->port == NULL) { 135 device_printf(dev, "Unable to allocate PORT resource.\n"); 136 error = ENOMEM; 137 goto bad; 138 } 139 } 140 141 if (sc->irq_type) { 142 sc->irq = bus_alloc_resource_any(dev, sc->irq_type, 143 &sc->irq_rid, RF_ACTIVE); 144 if (sc->irq == NULL) { 145 device_printf(dev, "Unable to allocate IRQ resource.\n"); 146 error = ENOMEM; 147 goto bad; 148 } 149 } 150 151 if (sc->drq_type) { 152 sc->drq = bus_alloc_resource_any(dev, sc->drq_type, 153 &sc->drq_rid, RF_ACTIVE); 154 if (sc->drq == NULL) { 155 device_printf(dev, "Unable to allocate DRQ resource.\n"); 156 error = ENOMEM; 157 goto bad; 158 } 159 } 160 161bad: 162 return (error); 163} 164 165static void 166mcd_release_resources (device_t dev) 167{ 168 struct mcd_softc * sc; 169 170 sc = device_get_softc(dev); 171 172 if (sc->irq_ih) 173 bus_teardown_intr(dev, sc->irq, sc->irq_ih); 174 if (sc->port) 175 bus_release_resource(dev, sc->port_type, sc->port_rid, sc->port); 176 if (sc->irq) 177 bus_release_resource(dev, sc->irq_type, sc->irq_rid, sc->irq); 178 if (sc->drq) 179 bus_release_resource(dev, sc->drq_type, sc->drq_rid, sc->drq); 180 181 mtx_destroy(&sc->mtx); 182 183 return; 184} 185 186static device_method_t mcd_isa_methods[] = { 187 DEVMETHOD(device_probe, mcd_isa_probe), 188 DEVMETHOD(device_attach, mcd_isa_attach), 189 DEVMETHOD(device_detach, mcd_isa_detach), 190 191 { 0, 0 } 192}; 193 194static driver_t mcd_isa_driver = { 195 "mcd", 196 mcd_isa_methods, 197 sizeof(struct mcd_softc) 198}; 199 200static devclass_t mcd_devclass; 201 202DRIVER_MODULE(mcd, isa, mcd_isa_driver, mcd_devclass, NULL, 0); 203