1 /*- 2 * Copyright (c) 2009-2012 Alexander Motin <mav@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer, 10 * without modification, immediately at the beginning of the file. 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 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #include <sys/cdefs.h> 28 __FBSDID("$FreeBSD$"); 29 30 #include "opt_acpi.h" 31 #include "opt_platform.h" 32 33 #include <sys/param.h> 34 #include <sys/module.h> 35 #include <sys/systm.h> 36 #include <sys/kernel.h> 37 #include <sys/bus.h> 38 #include <sys/conf.h> 39 #include <sys/endian.h> 40 #include <sys/malloc.h> 41 #include <sys/lock.h> 42 #include <sys/mutex.h> 43 #include <sys/rman.h> 44 45 #include <machine/bus.h> 46 #include <machine/resource.h> 47 48 #include <dev/ahci/ahci.h> 49 50 #ifdef DEV_ACPI 51 #include <contrib/dev/acpica/include/acpi.h> 52 #include <dev/acpica/acpivar.h> 53 54 #include <dev/pci/pcivar.h> 55 #include <dev/pci/pcireg.h> 56 #endif 57 58 #ifdef FDT 59 #include <dev/ofw/ofw_bus.h> 60 #include <dev/ofw/ofw_bus_subr.h> 61 62 static struct ofw_compat_data compat_data[] = { 63 {"generic-ahci", 1}, 64 {"snps,dwc-ahci", 1}, 65 {NULL, 0} 66 }; 67 68 static int 69 ahci_fdt_probe(device_t dev) 70 { 71 72 if (!ofw_bus_status_okay(dev)) 73 return (ENXIO); 74 75 if (!ofw_bus_search_compatible(dev, compat_data)->ocd_data) 76 return (ENXIO); 77 78 device_set_desc_copy(dev, "AHCI SATA controller"); 79 return (BUS_PROBE_DEFAULT); 80 } 81 #endif 82 83 #ifdef DEV_ACPI 84 static int 85 ahci_acpi_probe(device_t dev) 86 { 87 ACPI_HANDLE h; 88 89 if ((h = acpi_get_handle(dev)) == NULL) 90 return (ENXIO); 91 92 if (pci_get_class(dev) == PCIC_STORAGE && 93 pci_get_subclass(dev) == PCIS_STORAGE_SATA && 94 pci_get_progif(dev) == PCIP_STORAGE_SATA_AHCI_1_0) { 95 device_set_desc_copy(dev, "AHCI SATA controller"); 96 return (BUS_PROBE_DEFAULT); 97 } 98 99 return (ENXIO); 100 } 101 #endif 102 103 static int 104 ahci_gen_ctlr_reset(device_t dev) 105 { 106 107 return ahci_ctlr_reset(dev); 108 } 109 110 static int 111 ahci_gen_attach(device_t dev) 112 { 113 struct ahci_controller *ctlr = device_get_softc(dev); 114 int error; 115 116 ctlr->r_rid = 0; 117 ctlr->r_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &ctlr->r_rid, 118 RF_ACTIVE); 119 if (ctlr->r_mem == NULL) 120 return (ENXIO); 121 122 /* Setup controller defaults. */ 123 ctlr->numirqs = 1; 124 125 /* Reset controller */ 126 if ((error = ahci_gen_ctlr_reset(dev)) == 0) 127 error = ahci_attach(dev); 128 129 if (error != 0) { 130 if (ctlr->r_mem != NULL) 131 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, 132 ctlr->r_mem); 133 } 134 return error; 135 } 136 137 static int 138 ahci_gen_detach(device_t dev) 139 { 140 141 ahci_detach(dev); 142 return (0); 143 } 144 145 #ifdef FDT 146 static devclass_t ahci_gen_fdt_devclass; 147 static device_method_t ahci_fdt_methods[] = { 148 DEVMETHOD(device_probe, ahci_fdt_probe), 149 DEVMETHOD(device_attach, ahci_gen_attach), 150 DEVMETHOD(device_detach, ahci_gen_detach), 151 DEVMETHOD(bus_print_child, ahci_print_child), 152 DEVMETHOD(bus_alloc_resource, ahci_alloc_resource), 153 DEVMETHOD(bus_release_resource, ahci_release_resource), 154 DEVMETHOD(bus_setup_intr, ahci_setup_intr), 155 DEVMETHOD(bus_teardown_intr,ahci_teardown_intr), 156 DEVMETHOD(bus_child_location_str, ahci_child_location_str), 157 DEVMETHOD(bus_get_dma_tag, ahci_get_dma_tag), 158 DEVMETHOD_END 159 }; 160 static driver_t ahci_fdt_driver = { 161 "ahci", 162 ahci_fdt_methods, 163 sizeof(struct ahci_controller) 164 }; 165 DRIVER_MODULE(ahci_fdt, simplebus, ahci_fdt_driver, ahci_gen_fdt_devclass, 166 NULL, NULL); 167 #endif 168 169 #ifdef DEV_ACPI 170 static devclass_t ahci_gen_acpi_devclass; 171 static device_method_t ahci_acpi_methods[] = { 172 DEVMETHOD(device_probe, ahci_acpi_probe), 173 DEVMETHOD(device_attach, ahci_gen_attach), 174 DEVMETHOD(device_detach, ahci_gen_detach), 175 DEVMETHOD(bus_print_child, ahci_print_child), 176 DEVMETHOD(bus_alloc_resource, ahci_alloc_resource), 177 DEVMETHOD(bus_release_resource, ahci_release_resource), 178 DEVMETHOD(bus_setup_intr, ahci_setup_intr), 179 DEVMETHOD(bus_teardown_intr,ahci_teardown_intr), 180 DEVMETHOD(bus_child_location_str, ahci_child_location_str), 181 DEVMETHOD(bus_get_dma_tag, ahci_get_dma_tag), 182 DEVMETHOD_END 183 }; 184 static driver_t ahci_acpi_driver = { 185 "ahci", 186 ahci_acpi_methods, 187 sizeof(struct ahci_controller) 188 }; 189 DRIVER_MODULE(ahci_acpi, acpi, ahci_acpi_driver, ahci_gen_acpi_devclass, 190 NULL, NULL); 191 #endif 192