1 /* $OpenBSD: sili_pci.c,v 1.14 2013/12/06 21:03:04 deraadt Exp $ */ 2 3 /* 4 * Copyright (c) 2007 David Gwynne <dlg@openbsd.org> 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19 #include <sys/param.h> 20 #include <sys/systm.h> 21 #include <sys/kernel.h> 22 #include <sys/malloc.h> 23 #include <sys/device.h> 24 #include <sys/timeout.h> 25 26 #include <machine/bus.h> 27 28 #include <dev/pci/pcireg.h> 29 #include <dev/pci/pcivar.h> 30 #include <dev/pci/pcidevs.h> 31 32 #include <dev/ata/atascsi.h> 33 34 #include <dev/ic/silireg.h> 35 #include <dev/ic/silivar.h> 36 37 int sili_pci_match(struct device *, void *, void *); 38 void sili_pci_attach(struct device *, struct device *, void *); 39 int sili_pci_detach(struct device *, int); 40 int sili_pci_activate(struct device *, int); 41 42 struct sili_pci_softc { 43 struct sili_softc psc_sili; 44 45 pci_chipset_tag_t psc_pc; 46 pcitag_t psc_tag; 47 48 void *psc_ih; 49 }; 50 51 struct cfattach sili_pci_ca = { 52 sizeof(struct sili_pci_softc), 53 sili_pci_match, 54 sili_pci_attach, 55 sili_pci_detach, 56 sili_pci_activate 57 }; 58 59 struct sili_device { 60 pci_vendor_id_t sd_vendor; 61 pci_product_id_t sd_product; 62 u_int sd_nports; 63 }; 64 65 const struct sili_device *sili_lookup(struct pci_attach_args *); 66 67 static const struct sili_device sili_devices[] = { 68 { PCI_VENDOR_CMDTECH, PCI_PRODUCT_CMDTECH_3124, 4 }, 69 { PCI_VENDOR_CMDTECH, PCI_PRODUCT_CMDTECH_3131, 1 }, 70 { PCI_VENDOR_CMDTECH, PCI_PRODUCT_CMDTECH_3132, 2 }, 71 { PCI_VENDOR_CMDTECH, PCI_PRODUCT_CMDTECH_3531, 1 }, 72 { PCI_VENDOR_CMDTECH, PCI_PRODUCT_CMDTECH_AAR_1220SA, 2 }, 73 { PCI_VENDOR_CMDTECH, PCI_PRODUCT_CMDTECH_AAR_1225SA, 2 }, 74 { PCI_VENDOR_INTEL, PCI_PRODUCT_INTEL_3124, 4 } 75 }; 76 77 const struct sili_device * 78 sili_lookup(struct pci_attach_args *pa) 79 { 80 int i; 81 const struct sili_device *sd; 82 83 for (i = 0; i < nitems(sili_devices); i++) { 84 sd = &sili_devices[i]; 85 if (sd->sd_vendor == PCI_VENDOR(pa->pa_id) && 86 sd->sd_product == PCI_PRODUCT(pa->pa_id)) 87 return (sd); 88 } 89 90 return (NULL); 91 } 92 93 int 94 sili_pci_match(struct device *parent, void *match, void *aux) 95 { 96 return (sili_lookup((struct pci_attach_args *)aux) != NULL); 97 } 98 99 void 100 sili_pci_attach(struct device *parent, struct device *self, void *aux) 101 { 102 struct sili_pci_softc *psc = (void *)self; 103 struct sili_softc *sc = &psc->psc_sili; 104 struct pci_attach_args *pa = aux; 105 const struct sili_device *sd; 106 pcireg_t memtype; 107 pci_intr_handle_t ih; 108 const char *intrstr; 109 110 sd = sili_lookup(pa); 111 112 psc->psc_pc = pa->pa_pc; 113 psc->psc_tag = pa->pa_tag; 114 psc->psc_ih = NULL; 115 sc->sc_dmat = pa->pa_dmat; 116 sc->sc_ios_global = 0; 117 sc->sc_ios_port = 0; 118 sc->sc_nports = sd->sd_nports; 119 120 memtype = pci_mapreg_type(psc->psc_pc, psc->psc_tag, 121 SILI_PCI_BAR_GLOBAL); 122 if (pci_mapreg_map(pa, SILI_PCI_BAR_GLOBAL, memtype, 0, 123 &sc->sc_iot_global, &sc->sc_ioh_global, 124 NULL, &sc->sc_ios_global, 0) != 0) { 125 printf(": unable to map global registers\n"); 126 return; 127 } 128 129 memtype = pci_mapreg_type(psc->psc_pc, psc->psc_tag, 130 SILI_PCI_BAR_PORT); 131 if (pci_mapreg_map(pa, SILI_PCI_BAR_PORT, memtype, 0, 132 &sc->sc_iot_port, &sc->sc_ioh_port, 133 NULL, &sc->sc_ios_port, 0) != 0) { 134 printf(": unable to map port registers\n"); 135 goto unmap_global; 136 } 137 138 /* hook up the interrupt */ 139 if (pci_intr_map(pa, &ih)) { 140 printf(": unable to map interrupt\n"); 141 goto unmap_port; 142 } 143 intrstr = pci_intr_string(psc->psc_pc, ih); 144 psc->psc_ih = pci_intr_establish(psc->psc_pc, ih, IPL_BIO, 145 sili_intr, sc, sc->sc_dev.dv_xname); 146 if (psc->psc_ih == NULL) { 147 printf(": unable to map interrupt%s%s\n", 148 intrstr == NULL ? "" : " at ", 149 intrstr == NULL ? "" : intrstr); 150 goto unmap_port; 151 } 152 printf(": %s", intrstr); 153 154 if (sili_attach(sc) != 0) { 155 /* error printed by sili_attach */ 156 goto deintr; 157 } 158 159 return; 160 161 deintr: 162 pci_intr_disestablish(psc->psc_pc, psc->psc_ih); 163 psc->psc_ih = NULL; 164 unmap_port: 165 bus_space_unmap(sc->sc_iot_port, sc->sc_ioh_port, sc->sc_ios_port); 166 sc->sc_ios_port = 0; 167 unmap_global: 168 bus_space_unmap(sc->sc_iot_global, sc->sc_ioh_global, 169 sc->sc_ios_global); 170 sc->sc_ios_global = 0; 171 } 172 173 int 174 sili_pci_detach(struct device *self, int flags) 175 { 176 struct sili_pci_softc *psc = (struct sili_pci_softc *)self; 177 struct sili_softc *sc = &psc->psc_sili; 178 int rv; 179 180 rv = sili_detach(sc, flags); 181 if (rv != 0) 182 return (rv); 183 184 if (psc->psc_ih != NULL) { 185 pci_intr_disestablish(psc->psc_pc, psc->psc_ih); 186 psc->psc_ih = NULL; 187 } 188 if (sc->sc_ios_port != 0) { 189 bus_space_unmap(sc->sc_iot_port, sc->sc_ioh_port, 190 sc->sc_ios_port); 191 sc->sc_ios_port = 0; 192 } 193 if (sc->sc_ios_global != 0) { 194 bus_space_unmap(sc->sc_iot_global, sc->sc_ioh_global, 195 sc->sc_ios_global); 196 sc->sc_ios_global = 0; 197 } 198 199 return (0); 200 } 201 202 int 203 sili_pci_activate(struct device *self, int act) 204 { 205 struct sili_softc *sc = (struct sili_softc *)self; 206 int rv = 0; 207 208 switch (act) { 209 case DVACT_RESUME: 210 sili_resume(sc); 211 rv = config_activate_children(self, act); 212 break; 213 default: 214 rv = config_activate_children(self, act); 215 break; 216 } 217 return (rv); 218 } 219