fwohci_pci.c revision 1.27
1 /* $NetBSD: fwohci_pci.c,v 1.27 2007/11/06 15:24:10 kiyohara 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 1.27 2007/11/06 15:24:10 kiyohara 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 struct pci_conf_state psc_pciconf; 66 67 void *psc_ih; 68 void *psc_shutdownhook; 69 void *psc_powerhook; 70 }; 71 72 static int fwohci_pci_match(struct device *, struct cfdata *, void *); 73 static void fwohci_pci_attach(struct device *, struct device *, void *); 74 static void fwohci_pci_shutdown(void *); 75 static void fwohci_pci_power(int, void *); 76 77 CFATTACH_DECL(fwohci_pci, sizeof(struct fwohci_pci_softc), 78 fwohci_pci_match, fwohci_pci_attach, NULL, NULL); 79 80 static int 81 fwohci_pci_match(struct device *parent, struct cfdata *match, 82 void *aux) 83 { 84 struct pci_attach_args *pa = (struct pci_attach_args *) aux; 85 86 if (PCI_CLASS(pa->pa_class) == PCI_CLASS_SERIALBUS && 87 PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_SERIALBUS_FIREWIRE && 88 PCI_INTERFACE(pa->pa_class) == PCI_INTERFACE_OHCI) 89 return 1; 90 91 return 0; 92 } 93 94 static void 95 fwohci_pci_attach(struct device *parent, struct device *self, 96 void *aux) 97 { 98 struct pci_attach_args *pa = (struct pci_attach_args *) aux; 99 struct fwohci_pci_softc *psc = (struct fwohci_pci_softc *) 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.dmat = pa->pa_dmat; 112 psc->psc_pc = pa->pa_pc; 113 psc->psc_tag = pa->pa_tag; 114 115 /* Map I/O registers */ 116 if (pci_mapreg_map(pa, PCI_OHCI_MAP_REGISTER, PCI_MAPREG_TYPE_MEM, 0, 117 &psc->psc_sc.bst, &psc->psc_sc.bsh, 118 NULL, &psc->psc_sc.bssize)) { 119 aprint_error("%s: can't map OHCI register space\n", 120 self->dv_xname); 121 return; 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("%s: couldn't map interrupt\n", self->dv_xname); 135 return; 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("%s: couldn't establish interrupt", 142 self->dv_xname); 143 if (intrstr != NULL) 144 aprint_normal(" at %s", intrstr); 145 aprint_normal("\n"); 146 return; 147 } 148 aprint_normal("%s: interrupting at %s\n", self->dv_xname, intrstr); 149 150 psc->psc_shutdownhook = 151 shutdownhook_establish(fwohci_pci_shutdown, psc); 152 psc->psc_powerhook = 153 powerhook_establish(self->dv_xname, fwohci_pci_power, psc); 154 155 if (fwohci_init(&(psc->psc_sc), &(psc->psc_sc.fc._dev)) != 0) { 156 pci_intr_disestablish(pa->pa_pc, psc->psc_ih); 157 bus_space_unmap(psc->psc_sc.bst, psc->psc_sc.bsh, 158 psc->psc_sc.bssize); 159 } 160 } 161 162 static void 163 fwohci_pci_shutdown(void *arg) 164 { 165 struct fwohci_pci_softc *psc = arg; 166 167 fwohci_stop(&psc->psc_sc, psc->psc_sc.fc.dev); 168 } 169 170 static void 171 fwohci_pci_power(int why, void *arg) 172 { 173 struct fwohci_pci_softc *psc = arg; 174 int s; 175 176 s = splbio(); 177 switch (why) { 178 case PWR_SUSPEND: 179 case PWR_STANDBY: 180 printf("%s: suspending...\n", psc->psc_sc.fc._dev.dv_xname); 181 182 pci_conf_capture(psc->psc_pc, psc->psc_tag, &psc->psc_pciconf); 183 fwohci_stop(&psc->psc_sc, psc->psc_sc.fc.dev); 184 break; 185 186 case PWR_RESUME: 187 printf("%s: resuming...\n", psc->psc_sc.fc._dev.dv_xname); 188 189 pci_conf_restore(psc->psc_pc, psc->psc_tag, &psc->psc_pciconf); 190 fwohci_resume(&psc->psc_sc, psc->psc_sc.fc.dev); 191 break; 192 193 case PWR_SOFTSUSPEND: 194 case PWR_SOFTSTANDBY: 195 case PWR_SOFTRESUME: 196 break; 197 } 198 splx(s); 199 } 200
Indexes created Mon Sep 29 21:09:56 GMT 2025