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 {"marvell,armada-3700-ahci", 1}, 66 {NULL, 0} 67 }; 68 69 static int 70 ahci_fdt_probe(device_t dev) 71 { 72 struct ahci_controller *ctlr = device_get_softc(dev); 73 phandle_t node; 74 75 if (!ofw_bus_status_okay(dev)) 76 return (ENXIO); 77 78 if (!ofw_bus_search_compatible(dev, compat_data)->ocd_data) 79 return (ENXIO); 80 81 device_set_desc_copy(dev, "AHCI SATA controller"); 82 node = ofw_bus_get_node(dev); 83 ctlr->dma_coherent = OF_hasprop(node, "dma-coherent"); 84 return (BUS_PROBE_DEFAULT); 85 } 86 #endif 87 88 #ifdef DEV_ACPI 89 static int 90 ahci_acpi_probe(device_t dev) 91 { 92 ACPI_HANDLE h; 93 94 if ((h = acpi_get_handle(dev)) == NULL) 95 return (ENXIO); 96 97 if (pci_get_class(dev) == PCIC_STORAGE && 98 pci_get_subclass(dev) == PCIS_STORAGE_SATA && 99 pci_get_progif(dev) == PCIP_STORAGE_SATA_AHCI_1_0) { 100 device_set_desc_copy(dev, "AHCI SATA controller"); 101 return (BUS_PROBE_DEFAULT); 102 } 103 104 return (ENXIO); 105 } 106 #endif 107 108 static int 109 ahci_gen_ctlr_reset(device_t dev) 110 { 111 112 return ahci_ctlr_reset(dev); 113 } 114 115 static int 116 ahci_gen_attach(device_t dev) 117 { 118 struct ahci_controller *ctlr = device_get_softc(dev); 119 int error; 120 121 ctlr->r_rid = 0; 122 ctlr->r_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &ctlr->r_rid, 123 RF_ACTIVE); 124 if (ctlr->r_mem == NULL) 125 return (ENXIO); 126 127 /* Setup controller defaults. */ 128 ctlr->numirqs = 1; 129 130 /* Reset controller */ 131 if ((error = ahci_gen_ctlr_reset(dev)) == 0) 132 error = ahci_attach(dev); 133 134 if (error != 0) { 135 if (ctlr->r_mem != NULL) 136 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, 137 ctlr->r_mem); 138 } 139 return error; 140 } 141 142 static int 143 ahci_gen_detach(device_t dev) 144 { 145 146 ahci_detach(dev); 147 return (0); 148 } 149 150 #ifdef FDT 151 static devclass_t ahci_gen_fdt_devclass; 152 static device_method_t ahci_fdt_methods[] = { 153 DEVMETHOD(device_probe, ahci_fdt_probe), 154 DEVMETHOD(device_attach, ahci_gen_attach), 155 DEVMETHOD(device_detach, ahci_gen_detach), 156 DEVMETHOD(bus_print_child, ahci_print_child), 157 DEVMETHOD(bus_alloc_resource, ahci_alloc_resource), 158 DEVMETHOD(bus_release_resource, ahci_release_resource), 159 DEVMETHOD(bus_setup_intr, ahci_setup_intr), 160 DEVMETHOD(bus_teardown_intr,ahci_teardown_intr), 161 DEVMETHOD(bus_child_location_str, ahci_child_location_str), 162 DEVMETHOD(bus_get_dma_tag, ahci_get_dma_tag), 163 DEVMETHOD_END 164 }; 165 static driver_t ahci_fdt_driver = { 166 "ahci", 167 ahci_fdt_methods, 168 sizeof(struct ahci_controller) 169 }; 170 DRIVER_MODULE(ahci_fdt, simplebus, ahci_fdt_driver, ahci_gen_fdt_devclass, 171 NULL, NULL); 172 #endif 173 174 #ifdef DEV_ACPI 175 static devclass_t ahci_gen_acpi_devclass; 176 static device_method_t ahci_acpi_methods[] = { 177 DEVMETHOD(device_probe, ahci_acpi_probe), 178 DEVMETHOD(device_attach, ahci_gen_attach), 179 DEVMETHOD(device_detach, ahci_gen_detach), 180 DEVMETHOD(bus_print_child, ahci_print_child), 181 DEVMETHOD(bus_alloc_resource, ahci_alloc_resource), 182 DEVMETHOD(bus_release_resource, ahci_release_resource), 183 DEVMETHOD(bus_setup_intr, ahci_setup_intr), 184 DEVMETHOD(bus_teardown_intr,ahci_teardown_intr), 185 DEVMETHOD(bus_child_location_str, ahci_child_location_str), 186 DEVMETHOD(bus_get_dma_tag, ahci_get_dma_tag), 187 DEVMETHOD_END 188 }; 189 static driver_t ahci_acpi_driver = { 190 "ahci", 191 ahci_acpi_methods, 192 sizeof(struct ahci_controller) 193 }; 194 DRIVER_MODULE(ahci_acpi, acpi, ahci_acpi_driver, ahci_gen_acpi_devclass, 195 NULL, NULL); 196 #endif 197