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 struct ahci_controller *ctlr = device_get_softc(dev); 93 ACPI_HANDLE h; 94 95 if ((h = acpi_get_handle(dev)) == NULL) 96 return (ENXIO); 97 98 if (pci_get_class(dev) == PCIC_STORAGE && 99 pci_get_subclass(dev) == PCIS_STORAGE_SATA && 100 pci_get_progif(dev) == PCIP_STORAGE_SATA_AHCI_1_0) { 101 device_set_desc_copy(dev, "AHCI SATA controller"); 102 if (ACPI_FAILURE(acpi_GetInteger(h, "_CCA", 103 &ctlr->dma_coherent))) 104 ctlr->dma_coherent = 0; 105 if (bootverbose) 106 device_printf(dev, "Bus is%s cache-coherent\n", 107 ctlr->dma_coherent ? "" : " not"); 108 return (BUS_PROBE_DEFAULT); 109 } 110 111 return (ENXIO); 112 } 113 #endif 114 115 static int 116 ahci_gen_ctlr_reset(device_t dev) 117 { 118 119 return ahci_ctlr_reset(dev); 120 } 121 122 static int 123 ahci_gen_attach(device_t dev) 124 { 125 struct ahci_controller *ctlr = device_get_softc(dev); 126 int error; 127 128 ctlr->r_rid = 0; 129 ctlr->r_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &ctlr->r_rid, 130 RF_ACTIVE); 131 if (ctlr->r_mem == NULL) 132 return (ENXIO); 133 134 /* Setup controller defaults. */ 135 ctlr->numirqs = 1; 136 137 /* Reset controller */ 138 if ((error = ahci_gen_ctlr_reset(dev)) == 0) 139 error = ahci_attach(dev); 140 141 if (error != 0) { 142 if (ctlr->r_mem != NULL) 143 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, 144 ctlr->r_mem); 145 } 146 return error; 147 } 148 149 static int 150 ahci_gen_detach(device_t dev) 151 { 152 153 ahci_detach(dev); 154 return (0); 155 } 156 157 #ifdef FDT 158 static devclass_t ahci_gen_fdt_devclass; 159 static device_method_t ahci_fdt_methods[] = { 160 DEVMETHOD(device_probe, ahci_fdt_probe), 161 DEVMETHOD(device_attach, ahci_gen_attach), 162 DEVMETHOD(device_detach, ahci_gen_detach), 163 DEVMETHOD(bus_print_child, ahci_print_child), 164 DEVMETHOD(bus_alloc_resource, ahci_alloc_resource), 165 DEVMETHOD(bus_release_resource, ahci_release_resource), 166 DEVMETHOD(bus_setup_intr, ahci_setup_intr), 167 DEVMETHOD(bus_teardown_intr,ahci_teardown_intr), 168 DEVMETHOD(bus_child_location_str, ahci_child_location_str), 169 DEVMETHOD(bus_get_dma_tag, ahci_get_dma_tag), 170 DEVMETHOD_END 171 }; 172 static driver_t ahci_fdt_driver = { 173 "ahci", 174 ahci_fdt_methods, 175 sizeof(struct ahci_controller) 176 }; 177 DRIVER_MODULE(ahci_fdt, simplebus, ahci_fdt_driver, ahci_gen_fdt_devclass, 178 NULL, NULL); 179 #endif 180 181 #ifdef DEV_ACPI 182 static devclass_t ahci_gen_acpi_devclass; 183 static device_method_t ahci_acpi_methods[] = { 184 DEVMETHOD(device_probe, ahci_acpi_probe), 185 DEVMETHOD(device_attach, ahci_gen_attach), 186 DEVMETHOD(device_detach, ahci_gen_detach), 187 DEVMETHOD(bus_print_child, ahci_print_child), 188 DEVMETHOD(bus_alloc_resource, ahci_alloc_resource), 189 DEVMETHOD(bus_release_resource, ahci_release_resource), 190 DEVMETHOD(bus_setup_intr, ahci_setup_intr), 191 DEVMETHOD(bus_teardown_intr,ahci_teardown_intr), 192 DEVMETHOD(bus_child_location_str, ahci_child_location_str), 193 DEVMETHOD(bus_get_dma_tag, ahci_get_dma_tag), 194 DEVMETHOD_END 195 }; 196 static driver_t ahci_acpi_driver = { 197 "ahci", 198 ahci_acpi_methods, 199 sizeof(struct ahci_controller) 200 }; 201 DRIVER_MODULE(ahci_acpi, acpi, ahci_acpi_driver, ahci_gen_acpi_devclass, 202 NULL, NULL); 203 #endif 204