fwohci_pci.c revision 1.28
1 /* $NetBSD: fwohci_pci.c,v 1.28 2007/12/09 20:28:08 jmcneill Exp $ */ 2 3 /*- 4 * Copyright (c) 2000 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Matt Thomas of 3am Software Foundry. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #include <sys/cdefs.h> 40 __KERNEL_RCSID(0, "$NetBSD: fwohci_pci.c,v 1.28 2007/12/09 20:28:08 jmcneill Exp $"); 41 42 #include <sys/param.h> 43 #include <sys/systm.h> 44 #include <sys/socket.h> 45 #include <sys/device.h> 46 #include <sys/select.h> 47 48 #include <sys/bus.h> 49 #include <sys/intr.h> 50 51 #include <dev/pci/pcireg.h> 52 #include <dev/pci/pcivar.h> 53 #include <dev/ieee1394/fw_port.h> 54 #include <dev/ieee1394/firewire.h> 55 #include <dev/ieee1394/firewirereg.h> 56 #include <dev/ieee1394/fwdma.h> 57 #include <dev/ieee1394/fwohcireg.h> 58 #include <dev/ieee1394/fwohcivar.h> 59 60 struct fwohci_pci_softc { 61 struct fwohci_softc psc_sc; 62 63 pci_chipset_tag_t psc_pc; 64 pcitag_t psc_tag; 65 66 void *psc_ih; 67 }; 68 69 static int fwohci_pci_match(struct device *, struct cfdata *, void *); 70 static void fwohci_pci_attach(struct device *, struct device *, void *); 71 72 static bool fwohci_pci_suspend(device_t); 73 static bool fwohci_pci_resume(device_t); 74 75 CFATTACH_DECL(fwohci_pci, sizeof(struct fwohci_pci_softc), 76 fwohci_pci_match, fwohci_pci_attach, NULL, NULL); 77 78 static int 79 fwohci_pci_match(struct device *parent, struct cfdata *match, 80 void *aux) 81 { 82 struct pci_attach_args *pa = (struct pci_attach_args *) aux; 83 84 if (PCI_CLASS(pa->pa_class) == PCI_CLASS_SERIALBUS && 85 PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_SERIALBUS_FIREWIRE && 86 PCI_INTERFACE(pa->pa_class) == PCI_INTERFACE_OHCI) 87 return 1; 88 89 return 0; 90 } 91 92 static void 93 fwohci_pci_attach(struct device *parent, struct device *self, 94 void *aux) 95 { 96 struct pci_attach_args *pa = (struct pci_attach_args *) aux; 97 struct fwohci_pci_softc *psc = (struct fwohci_pci_softc *) self; 98 char devinfo[256]; 99 char const *intrstr; 100 pci_intr_handle_t ih; 101 u_int32_t csr; 102 103 aprint_naive(": IEEE 1394 Controller\n"); 104 105 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo)); 106 aprint_normal(": %s (rev. 0x%02x)\n", devinfo, 107 PCI_REVISION(pa->pa_class)); 108 109 psc->psc_sc.fc.dmat = pa->pa_dmat; 110 psc->psc_pc = pa->pa_pc; 111 psc->psc_tag = pa->pa_tag; 112 113 /* Map I/O registers */ 114 if (pci_mapreg_map(pa, PCI_OHCI_MAP_REGISTER, PCI_MAPREG_TYPE_MEM, 0, 115 &psc->psc_sc.bst, &psc->psc_sc.bsh, 116 NULL, &psc->psc_sc.bssize)) { 117 aprint_error("%s: can't map OHCI register space\n", 118 self->dv_xname); 119 goto fail; 120 } 121 122 /* Disable interrupts, so we don't get any spurious ones. */ 123 OHCI_CSR_WRITE(&psc->psc_sc, FWOHCI_INTMASKCLR, OHCI_INT_EN); 124 125 /* Enable the device. */ 126 csr = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 127 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 128 csr | PCI_COMMAND_MASTER_ENABLE); 129 130 /* Map and establish the interrupt. */ 131 if (pci_intr_map(pa, &ih)) { 132 aprint_error("%s: couldn't map interrupt\n", self->dv_xname); 133 goto fail; 134 } 135 intrstr = pci_intr_string(pa->pa_pc, ih); 136 psc->psc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_BIO, fwohci_filt, 137 &psc->psc_sc); 138 if (psc->psc_ih == NULL) { 139 aprint_error("%s: couldn't establish interrupt", 140 self->dv_xname); 141 if (intrstr != NULL) 142 aprint_normal(" at %s", intrstr); 143 aprint_normal("\n"); 144 goto fail; 145 } 146 aprint_normal("%s: interrupting at %s\n", self->dv_xname, intrstr); 147 148 if (!pmf_device_register(self, fwohci_pci_suspend, fwohci_pci_resume)) 149 aprint_error_dev(self, "couldn't establish power handler\n"); 150 151 if (fwohci_init(&(psc->psc_sc), &(psc->psc_sc.fc._dev)) != 0) { 152 pci_intr_disestablish(pa->pa_pc, psc->psc_ih); 153 bus_space_unmap(psc->psc_sc.bst, psc->psc_sc.bsh, 154 psc->psc_sc.bssize); 155 } 156 157 return; 158 159 fail: 160 /* In the event that we fail to attach, register a null pnp handler */ 161 if (!pmf_device_register(self, NULL, NULL)) 162 aprint_error_dev(self, "couldn't establish power handler\n"); 163 164 return; 165 } 166 167 static bool 168 fwohci_pci_suspend(device_t dv) 169 { 170 struct fwohci_pci_softc *psc = device_private(dv); 171 int s; 172 173 s = splbio(); 174 fwohci_stop(&psc->psc_sc, psc->psc_sc.fc.dev); 175 splx(s); 176 177 return true; 178 } 179 180 static bool 181 fwohci_pci_resume(device_t dv) 182 { 183 struct fwohci_pci_softc *psc = device_private(dv); 184 int s; 185 186 s = splbio(); 187 fwohci_resume(&psc->psc_sc, psc->psc_sc.fc.dev); 188 splx(s); 189 190 return true; 191 } 192
Indexes created Mon Sep 29 21:09:56 GMT 2025