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 struct ahci_controller *ctlr = device_get_softc(dev); 72 phandle_t node; 73 74 if (!ofw_bus_status_okay(dev)) 75 return (ENXIO); 76 77 if (!ofw_bus_search_compatible(dev, compat_data)->ocd_data) 78 return (ENXIO); 79 80 device_set_desc_copy(dev, "AHCI SATA controller"); 81 node = ofw_bus_get_node(dev); 82 ctlr->dma_coherent = OF_hasprop(node, "dma-coherent"); 83 return (BUS_PROBE_DEFAULT); 84 } 85 #endif 86 87 #ifdef DEV_ACPI 88 static int 89 ahci_acpi_probe(device_t dev) 90 { 91 ACPI_HANDLE h; 92 93 if ((h = acpi_get_handle(dev)) == NULL) 94 return (ENXIO); 95 96 if (pci_get_class(dev) == PCIC_STORAGE && 97 pci_get_subclass(dev) == PCIS_STORAGE_SATA && 98 pci_get_progif(dev) == PCIP_STORAGE_SATA_AHCI_1_0) { 99 device_set_desc_copy(dev, "AHCI SATA controller"); 100 return (BUS_PROBE_DEFAULT); 101 } 102 103 return (ENXIO); 104 } 105 #endif 106 107 static int 108 ahci_gen_ctlr_reset(device_t dev) 109 { 110 111 return ahci_ctlr_reset(dev); 112 } 113 114 static int 115 ahci_gen_attach(device_t dev) 116 { 117 struct ahci_controller *ctlr = device_get_softc(dev); 118 int error; 119 120 ctlr->r_rid = 0; 121 ctlr->r_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &ctlr->r_rid, 122 RF_ACTIVE); 123 if (ctlr->r_mem == NULL) 124 return (ENXIO); 125 126 /* Setup controller defaults. */ 127 ctlr->numirqs = 1; 128 129 /* Reset controller */ 130 if ((error = ahci_gen_ctlr_reset(dev)) == 0) 131 error = ahci_attach(dev); 132 133 if (error != 0) { 134 if (ctlr->r_mem != NULL) 135 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, 136 ctlr->r_mem); 137 } 138 return error; 139 } 140 141 static int 142 ahci_gen_detach(device_t dev) 143 { 144 145 ahci_detach(dev); 146 return (0); 147 } 148 149 #ifdef FDT 150 static devclass_t ahci_gen_fdt_devclass; 151 static device_method_t ahci_fdt_methods[] = { 152 DEVMETHOD(device_probe, ahci_fdt_probe), 153 DEVMETHOD(device_attach, ahci_gen_attach), 154 DEVMETHOD(device_detach, ahci_gen_detach), 155 DEVMETHOD(bus_print_child, ahci_print_child), 156 DEVMETHOD(bus_alloc_resource, ahci_alloc_resource), 157 DEVMETHOD(bus_release_resource, ahci_release_resource), 158 DEVMETHOD(bus_setup_intr, ahci_setup_intr), 159 DEVMETHOD(bus_teardown_intr,ahci_teardown_intr), 160 DEVMETHOD(bus_child_location_str, ahci_child_location_str), 161 DEVMETHOD(bus_get_dma_tag, ahci_get_dma_tag), 162 DEVMETHOD_END 163 }; 164 static driver_t ahci_fdt_driver = { 165 "ahci", 166 ahci_fdt_methods, 167 sizeof(struct ahci_controller) 168 }; 169 DRIVER_MODULE(ahci_fdt, simplebus, ahci_fdt_driver, ahci_gen_fdt_devclass, 170 NULL, NULL); 171 #endif 172 173 #ifdef DEV_ACPI 174 static devclass_t ahci_gen_acpi_devclass; 175 static device_method_t ahci_acpi_methods[] = { 176 DEVMETHOD(device_probe, ahci_acpi_probe), 177 DEVMETHOD(device_attach, ahci_gen_attach), 178 DEVMETHOD(device_detach, ahci_gen_detach), 179 DEVMETHOD(bus_print_child, ahci_print_child), 180 DEVMETHOD(bus_alloc_resource, ahci_alloc_resource), 181 DEVMETHOD(bus_release_resource, ahci_release_resource), 182 DEVMETHOD(bus_setup_intr, ahci_setup_intr), 183 DEVMETHOD(bus_teardown_intr,ahci_teardown_intr), 184 DEVMETHOD(bus_child_location_str, ahci_child_location_str), 185 DEVMETHOD(bus_get_dma_tag, ahci_get_dma_tag), 186 DEVMETHOD_END 187 }; 188 static driver_t ahci_acpi_driver = { 189 "ahci", 190 ahci_acpi_methods, 191 sizeof(struct ahci_controller) 192 }; 193 DRIVER_MODULE(ahci_acpi, acpi, ahci_acpi_driver, ahci_gen_acpi_devclass, 194 NULL, NULL); 195 #endif 196