ahcisata_pci.c revision 1.13
1 /* $NetBSD: ahcisata_pci.c,v 1.13 2008/12/08 15:35:23 tron Exp $ */ 2 3 /* 4 * Copyright (c) 2006 Manuel Bouyer. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Manuel Bouyer. 17 * 4. The name of the author may not be used to endorse or promote products 18 * derived from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 * 31 */ 32 33 #include <sys/cdefs.h> 34 __KERNEL_RCSID(0, "$NetBSD: ahcisata_pci.c,v 1.13 2008/12/08 15:35:23 tron Exp $"); 35 36 #include <sys/types.h> 37 #include <sys/malloc.h> 38 #include <sys/param.h> 39 #include <sys/kernel.h> 40 #include <sys/systm.h> 41 #include <sys/disklabel.h> 42 #include <sys/pmf.h> 43 44 #include <uvm/uvm_extern.h> 45 46 #include <dev/pci/pcivar.h> 47 #include <dev/pci/pcidevs.h> 48 #include <dev/pci/pciidereg.h> 49 #include <dev/pci/pciidevar.h> 50 #include <dev/ic/ahcisatavar.h> 51 52 #define AHCI_PCI_QUIRK_FORCE 1 /* force attach */ 53 54 static const struct pci_quirkdata ahci_pci_quirks[] = { 55 { PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_MCP65_SATA, 56 AHCI_PCI_QUIRK_FORCE }, 57 { PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_MCP67_SATA, 58 AHCI_PCI_QUIRK_FORCE }, 59 { PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_MCP73_AHCI_1, 60 AHCI_PCI_QUIRK_FORCE }, 61 }; 62 63 struct ahci_pci_softc { 64 struct ahci_softc ah_sc; 65 pci_chipset_tag_t sc_pc; 66 pcitag_t sc_pcitag; 67 }; 68 69 70 static int ahci_pci_match(device_t, cfdata_t, void *); 71 static void ahci_pci_attach(device_t, device_t, void *); 72 const struct pci_quirkdata *ahci_pci_lookup_quirkdata(pci_vendor_id_t, 73 pci_product_id_t); 74 static bool ahci_pci_resume(device_t PMF_FN_PROTO); 75 76 77 CFATTACH_DECL_NEW(ahcisata_pci, sizeof(struct ahci_pci_softc), 78 ahci_pci_match, ahci_pci_attach, NULL, NULL); 79 80 static int 81 ahci_pci_match(device_t parent, cfdata_t match, void *aux) 82 { 83 struct pci_attach_args *pa = aux; 84 bus_space_tag_t regt; 85 bus_space_handle_t regh; 86 bus_size_t size; 87 int ret = 0; 88 const struct pci_quirkdata *quirks; 89 90 quirks = ahci_pci_lookup_quirkdata(PCI_VENDOR(pa->pa_id), 91 PCI_PRODUCT(pa->pa_id)); 92 93 /* if wrong class and not forced by quirks, don't match */ 94 if ((PCI_CLASS(pa->pa_class) != PCI_CLASS_MASS_STORAGE || 95 ((PCI_SUBCLASS(pa->pa_class) != PCI_SUBCLASS_MASS_STORAGE_SATA || 96 PCI_INTERFACE(pa->pa_class) != PCI_INTERFACE_SATA_AHCI) && 97 PCI_SUBCLASS(pa->pa_class) != PCI_SUBCLASS_MASS_STORAGE_RAID)) && 98 (quirks == NULL || (quirks->quirks & AHCI_PCI_QUIRK_FORCE) == 0)) 99 return 0; 100 101 if (pci_mapreg_map(pa, AHCI_PCI_ABAR, 102 PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT, 0, 103 ®t, ®h, NULL, &size) != 0) 104 return 0; 105 106 if ((PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_MASS_STORAGE_SATA && 107 PCI_INTERFACE(pa->pa_class) == PCI_INTERFACE_SATA_AHCI) || 108 (quirks && quirks->quirks & AHCI_PCI_QUIRK_FORCE) || 109 (bus_space_read_4(regt, regh, AHCI_GHC) & AHCI_GHC_AE)) 110 ret = 3; 111 112 bus_space_unmap(regt, regh, size); 113 return ret; 114 } 115 116 static void 117 ahci_pci_attach(device_t parent, device_t self, void *aux) 118 { 119 struct pci_attach_args *pa = aux; 120 struct ahci_pci_softc *psc = device_private(self); 121 struct ahci_softc *sc = &psc->ah_sc; 122 bus_size_t size; 123 char devinfo[256]; 124 const char *intrstr; 125 pci_intr_handle_t intrhandle; 126 void *ih; 127 128 sc->sc_atac.atac_dev = self; 129 130 if (pci_mapreg_map(pa, AHCI_PCI_ABAR, 131 PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT, 0, 132 &sc->sc_ahcit, &sc->sc_ahcih, NULL, &size) != 0) { 133 aprint_error_dev(self, "can't map ahci registers\n"); 134 return; 135 } 136 psc->sc_pc = pa->pa_pc; 137 psc->sc_pcitag = pa->pa_tag; 138 139 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo)); 140 aprint_naive(": AHCI disk controller\n"); 141 aprint_normal(": %s\n", devinfo); 142 143 if (pci_intr_map(pa, &intrhandle) != 0) { 144 aprint_error("%s: couldn't map interrupt\n", AHCINAME(sc)); 145 return; 146 } 147 intrstr = pci_intr_string(pa->pa_pc, intrhandle); 148 ih = pci_intr_establish(pa->pa_pc, intrhandle, IPL_BIO, ahci_intr, sc); 149 if (ih == NULL) { 150 aprint_error("%s: couldn't establish interrupt", AHCINAME(sc)); 151 return; 152 } 153 aprint_normal("%s: interrupting at %s\n", AHCINAME(sc), 154 intrstr ? intrstr : "unknown interrupt"); 155 sc->sc_dmat = pa->pa_dmat; 156 157 if (PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_MASS_STORAGE_RAID) { 158 AHCIDEBUG_PRINT(("%s: RAID mode\n", AHCINAME(sc)), DEBUG_PROBE); 159 sc->sc_atac_capflags = ATAC_CAP_RAID; 160 } else { 161 AHCIDEBUG_PRINT(("%s: SATA mode\n", AHCINAME(sc)), DEBUG_PROBE); 162 } 163 164 ahci_attach(sc); 165 166 if (!pmf_device_register(self, NULL, ahci_pci_resume)) 167 aprint_error_dev(self, "couldn't establish power handler\n"); 168 } 169 170 static bool 171 ahci_pci_resume(device_t dv PMF_FN_ARGS) 172 { 173 struct ahci_pci_softc *psc = device_private(dv); 174 struct ahci_softc *sc = &psc->ah_sc; 175 int s; 176 177 s = splbio(); 178 ahci_reset(sc); 179 ahci_setup_ports(sc); 180 ahci_reprobe_drives(sc); 181 ahci_enable_intrs(sc); 182 splx(s); 183 184 return true; 185 } 186 187 const struct pci_quirkdata * 188 ahci_pci_lookup_quirkdata(pci_vendor_id_t vendor, pci_product_id_t product) 189 { 190 int i; 191 192 for (i = 0; i < (sizeof ahci_pci_quirks / sizeof ahci_pci_quirks[0]); 193 i++) 194 if (vendor == ahci_pci_quirks[i].vendor && 195 product == ahci_pci_quirks[i].product) 196 return (&ahci_pci_quirks[i]); 197 return (NULL); 198 } 199
Indexes created Tue Sep 30 11:09:46 GMT 2025