fwohci_pci.c revision 1.32.10.1
1 /* $NetBSD: fwohci_pci.c,v 1.32.10.1 2010/11/21 23:34:56 riz 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 __KERNEL_RCSID(0, "$NetBSD: fwohci_pci.c,v 1.32.10.1 2010/11/21 23:34:56 riz Exp $"); 34 35 #include <sys/param.h> 36 #include <sys/systm.h> 37 #include <sys/socket.h> 38 #include <sys/device.h> 39 #include <sys/select.h> 40 41 #include <sys/bus.h> 42 #include <sys/intr.h> 43 44 #include <dev/pci/pcireg.h> 45 #include <dev/pci/pcivar.h> 46 #include <dev/pci/pcidevs.h> 47 #include <dev/ieee1394/fw_port.h> 48 #include <dev/ieee1394/firewire.h> 49 #include <dev/ieee1394/firewirereg.h> 50 #include <dev/ieee1394/fwdma.h> 51 #include <dev/ieee1394/fwohcireg.h> 52 #include <dev/ieee1394/fwohcivar.h> 53 54 struct fwohci_pci_softc { 55 struct fwohci_softc psc_sc; 56 57 pci_chipset_tag_t psc_pc; 58 pcitag_t psc_tag; 59 60 void *psc_ih; 61 }; 62 63 static int fwohci_pci_match(device_t, struct cfdata *, void *); 64 static void fwohci_pci_attach(device_t, device_t, void *); 65 66 static bool fwohci_pci_suspend(device_t PMF_FN_PROTO); 67 static bool fwohci_pci_resume(device_t PMF_FN_PROTO); 68 69 CFATTACH_DECL_NEW(fwohci_pci, sizeof(struct fwohci_pci_softc), 70 fwohci_pci_match, fwohci_pci_attach, NULL, NULL); 71 72 static int 73 fwohci_pci_match(device_t parent, struct cfdata *match, 74 void *aux) 75 { 76 struct pci_attach_args *pa = (struct pci_attach_args *) aux; 77 78 /* 79 * XXX 80 * Firewire controllers used in some G3 PowerBooks hang the system 81 * when trying to discover devices - don't attach to those for now 82 * until someone with the right hardware can investigate 83 */ 84 if ((PCI_VENDOR(pa->pa_id) == PCI_VENDOR_APPLE) && 85 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_APPLE_PBG3_FW)) 86 return 0; 87 if (PCI_CLASS(pa->pa_class) == PCI_CLASS_SERIALBUS && 88 PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_SERIALBUS_FIREWIRE && 89 PCI_INTERFACE(pa->pa_class) == PCI_INTERFACE_OHCI) 90 return 1; 91 92 return 0; 93 } 94 95 static void 96 fwohci_pci_attach(device_t parent, device_t self, void *aux) 97 { 98 struct pci_attach_args *pa = (struct pci_attach_args *) aux; 99 struct fwohci_pci_softc *psc = device_private(self); 100 char devinfo[256]; 101 char const *intrstr; 102 pci_intr_handle_t ih; 103 u_int32_t csr; 104 105 aprint_naive(": IEEE 1394 Controller\n"); 106 107 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo)); 108 aprint_normal(": %s (rev. 0x%02x)\n", devinfo, 109 PCI_REVISION(pa->pa_class)); 110 111 psc->psc_sc.fc.dev = self; 112 psc->psc_sc.fc.dmat = pa->pa_dmat; 113 psc->psc_pc = pa->pa_pc; 114 psc->psc_tag = pa->pa_tag; 115 116 /* Map I/O registers */ 117 if (pci_mapreg_map(pa, PCI_OHCI_MAP_REGISTER, PCI_MAPREG_TYPE_MEM, 0, 118 &psc->psc_sc.bst, &psc->psc_sc.bsh, 119 NULL, &psc->psc_sc.bssize)) { 120 aprint_error_dev(self, "can't map OHCI register space\n"); 121 goto fail; 122 } 123 124 /* Disable interrupts, so we don't get any spurious ones. */ 125 OHCI_CSR_WRITE(&psc->psc_sc, FWOHCI_INTMASKCLR, OHCI_INT_EN); 126 127 /* Enable the device. */ 128 csr = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 129 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 130 csr | PCI_COMMAND_MASTER_ENABLE); 131 132 /* Map and establish the interrupt. */ 133 if (pci_intr_map(pa, &ih)) { 134 aprint_error_dev(self, "couldn't map interrupt\n"); 135 goto fail; 136 } 137 intrstr = pci_intr_string(pa->pa_pc, ih); 138 psc->psc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_BIO, fwohci_filt, 139 &psc->psc_sc); 140 if (psc->psc_ih == NULL) { 141 aprint_error_dev(self, "couldn't establish interrupt"); 142 if (intrstr != NULL) 143 aprint_error(" at %s", intrstr); 144 aprint_error("\n"); 145 goto fail; 146 } 147 aprint_normal_dev(self, "interrupting at %s\n", intrstr); 148 149 if (!pmf_device_register(self, fwohci_pci_suspend, fwohci_pci_resume)) 150 aprint_error_dev(self, "couldn't establish power handler\n"); 151 152 if (fwohci_init(&(psc->psc_sc), psc->psc_sc.fc.dev) != 0) { 153 pci_intr_disestablish(pa->pa_pc, psc->psc_ih); 154 bus_space_unmap(psc->psc_sc.bst, psc->psc_sc.bsh, 155 psc->psc_sc.bssize); 156 } 157 158 return; 159 160 fail: 161 /* In the event that we fail to attach, register a null pnp handler */ 162 if (!pmf_device_register(self, NULL, NULL)) 163 aprint_error_dev(self, "couldn't establish power handler\n"); 164 165 return; 166 } 167 168 static bool 169 fwohci_pci_suspend(device_t dv PMF_FN_ARGS) 170 { 171 struct fwohci_pci_softc *psc = device_private(dv); 172 int s; 173 174 s = splbio(); 175 fwohci_stop(&psc->psc_sc, psc->psc_sc.fc.dev); 176 splx(s); 177 178 return true; 179 } 180 181 static bool 182 fwohci_pci_resume(device_t dv PMF_FN_ARGS) 183 { 184 struct fwohci_pci_softc *psc = device_private(dv); 185 int s; 186 187 s = splbio(); 188 fwohci_resume(&psc->psc_sc, psc->psc_sc.fc.dev); 189 splx(s); 190 191 return true; 192 } 193
Indexes created Tue Oct 14 11:09:46 GMT 2025