1/*- 2 * Copyright (c) 1995, 1996 Matt Thomas <matt@3am-software.com> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 7 unchanged lines hidden (view full) --- 16 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 19 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 20 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 23 * |
24 * $FreeBSD: head/sys/dev/pdq/if_fpa.c 93383 2002-03-29 11:22:22Z mdodd $ |
25 * 26 */ 27 28/* 29 * DEC PDQ FDDI Controller; code for BSD derived operating systems 30 * 31 * This module supports the DEC DEFPA PCI FDDI Controller 32 */ 33 34#include <sys/param.h> |
35#include <sys/systm.h> |
36#include <sys/kernel.h> 37#include <sys/socket.h> 38 |
39#include <sys/module.h> 40#include <sys/bus.h> |
41 |
42#include <machine/bus_memio.h> 43#include <machine/bus_pio.h> |
44#include <machine/bus.h> 45#include <machine/resource.h> |
46#include <sys/rman.h> |
47 |
48#include <net/if.h> 49#include <net/if_arp.h> 50#include <net/if_media.h> 51#include <net/fddi.h> |
52 |
53#include <dev/pci/pcivar.h> 54#include <dev/pci/pcireg.h> 55 56#include <dev/pdq/pdq_freebsd.h> 57#include <dev/pdq/pdqreg.h> 58 |
59#define DEC_VENDORID 0x1011 60#define DEFPA_CHIPID 0x000F 61 62#define DEFPA_LATENCY 0x88 63 64#define PCI_CFLT 0x0C /* Configuration Latency */ 65#define PCI_CBMA 0x10 /* Configuration Base Memory Address */ 66#define PCI_CBIO 0x14 /* Configuration Base I/O Address */ 67 |
68static int pdq_pci_probe (device_t); 69static int pdq_pci_attach (device_t); 70static int pdq_pci_detach (device_t); 71static void pdq_pci_shutdown (device_t); 72static void pdq_pci_ifintr (void *); 73 |
74static void 75pdq_pci_ifintr(void *arg) 76{ |
77 device_t dev; |
78 pdq_softc_t *sc; 79 |
80 dev = (device_t)arg; 81 sc = device_get_softc(dev); 82 83 PDQ_LOCK(sc); |
84 (void) pdq_interrupt(sc->sc_pdq); |
85 PDQ_UNLOCK(sc); 86 87 return; |
88} 89 90/* 91 * This is the PCI configuration support. 92 */ 93static int 94pdq_pci_probe(device_t dev) 95{ 96 if (pci_get_vendor(dev) == DEC_VENDORID && 97 pci_get_device(dev) == DEFPA_CHIPID) { 98 device_set_desc(dev, "Digital DEFPA PCI FDDI Controller"); |
99 return (0); |
100 } |
101 102 return (ENXIO); |
103} 104 105static int 106pdq_pci_attach(device_t dev) 107{ 108 pdq_softc_t *sc; |
109 struct ifnet *ifp; 110 u_int32_t command; 111 int error; |
112 |
113 sc = device_get_softc(dev); |
114 ifp = &sc->arpcom.ac_if; |
115 |
116 sc->dev = dev; 117 118 /* 119 * Map control/status registers. 120 */ 121 pci_enable_busmaster(dev); 122 pci_enable_io(dev, SYS_RES_IOPORT); 123 pci_enable_io(dev, SYS_RES_MEMORY); 124 command = pci_read_config(dev, PCIR_COMMAND, 4); 125 126 if (!(command & PCIM_CMD_PORTEN)) { 127 device_printf(dev, "Failed to enable PCI I/O ports.\n"); 128 error = ENXIO; 129 goto bad; |
130 } 131 |
132 if (!(command & PCIM_CMD_MEMEN)) { 133 device_printf(dev, "Failed to enable PCI memory mapping.\n"); 134 error = ENXIO; |
135 goto bad; |
136 } |
137 |
138 command = pci_read_config(dev, PCIR_LATTIMER, 1); 139 if (command < DEFPA_LATENCY) { 140 command = DEFPA_LATENCY; 141 pci_write_config(dev, PCIR_LATTIMER, command, 1); 142 } 143 144 sc->mem_rid = PCI_CBMA; 145 sc->mem_type = SYS_RES_MEMORY; 146 sc->mem = bus_alloc_resource(dev, sc->mem_type, &sc->mem_rid, 147 0, ~0, 1, RF_ACTIVE); 148 if (!sc->mem) { 149 device_printf(dev, "Unable to allocate I/O space resource.\n"); 150 error = ENXIO; |
151 goto bad; |
152 } 153 sc->mem_bsh = rman_get_bushandle(sc->mem); 154 sc->mem_bst = rman_get_bustag(sc->mem); 155 156 sc->irq_rid = 0; 157 sc->irq = bus_alloc_resource(dev, SYS_RES_IRQ, &sc->irq_rid, 158 0, ~0, 1, RF_SHAREABLE | RF_ACTIVE); 159 if (!sc->irq) { 160 device_printf(dev, "Unable to allocate interrupt resource.\n"); 161 error = ENXIO; |
162 goto bad; |
163 } 164 165 ifp->if_name = "fpa"; 166 ifp->if_unit = device_get_unit(dev); 167 168 sc->sc_pdq = pdq_initialize(sc->mem_bst, sc->mem_bsh, 169 ifp->if_name, ifp->if_unit, 170 (void *)sc, PDQ_DEFPA); 171 if (sc->sc_pdq == NULL) { 172 device_printf(dev, "Initialization failed.\n"); 173 error = ENXIO; |
174 goto bad; |
175 } |
176 |
177 error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET, 178 pdq_pci_ifintr, dev, &sc->irq_ih); 179 if (error) { 180 device_printf(dev, "Failed to setup interrupt handler.\n"); 181 error = ENXIO; 182 goto bad; 183 } 184 185 bcopy((caddr_t) sc->sc_pdq->pdq_hwaddr.lanaddr_bytes, 186 (caddr_t) sc->arpcom.ac_enaddr, FDDI_ADDR_LEN); 187 pdq_ifattach(sc); 188 189 return (0); |
190bad: |
191 pdq_free(dev); 192 return (error); |
193} 194 |
195static int 196pdq_pci_detach (dev) 197 device_t dev; 198{ 199 pdq_softc_t *sc; 200 201 sc = device_get_softc(dev); 202 pdq_ifdetach(sc); 203 204 return (0); 205} 206 |
207static void 208pdq_pci_shutdown(device_t dev) 209{ 210 pdq_softc_t *sc; 211 212 sc = device_get_softc(dev); 213 pdq_hwreset(sc->sc_pdq); |
214 215 return; |
216} 217 218static device_method_t pdq_pci_methods[] = { 219 /* Device interface */ 220 DEVMETHOD(device_probe, pdq_pci_probe), 221 DEVMETHOD(device_attach, pdq_pci_attach), |
222 DEVMETHOD(device_detach, pdq_pci_detach), |
223 DEVMETHOD(device_shutdown, pdq_pci_shutdown), |
224 |
225 { 0, 0 } 226}; |
227 |
228static driver_t pdq_pci_driver = { 229 "fpa", 230 pdq_pci_methods, 231 sizeof(pdq_softc_t), 232}; |
233 |
234DRIVER_MODULE(if_fpa, pci, pdq_pci_driver, pdq_devclass, 0, 0); |
235/* MODULE_DEPEND(if_fpa, pci, 1, 1, 1); */ 236MODULE_DEPEND(if_fpa, fddi, 1, 1, 1); |