1111072Sjake/*- 2111072Sjake * Copyright (c) 2003 Jake Burkholder. 3111072Sjake * All rights reserved. 4111072Sjake * 5111072Sjake * Redistribution and use in source and binary forms, with or without 6111072Sjake * modification, are permitted provided that the following conditions 7111072Sjake * are met: 8111072Sjake * 1. Redistributions of source code must retain the above copyright 9111072Sjake * notice, this list of conditions and the following disclaimer. 10111072Sjake * 2. Redistributions in binary form must reproduce the above copyright 11111072Sjake * notice, this list of conditions and the following disclaimer in the 12111072Sjake * documentation and/or other materials provided with the distribution. 13111072Sjake * 14111072Sjake * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15111072Sjake * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16111072Sjake * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17111072Sjake * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18111072Sjake * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19111072Sjake * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20111072Sjake * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21111072Sjake * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22111072Sjake * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23111072Sjake * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24111072Sjake * SUCH DAMAGE. 25111072Sjake */ 26111072Sjake 27143128Smarius#include <sys/cdefs.h> 28143128Smarius__FBSDID("$FreeBSD$"); 29143128Smarius 30111072Sjake#include <sys/param.h> 31111072Sjake#include <sys/systm.h> 32111072Sjake#include <sys/bus.h> 33111072Sjake#include <sys/kernel.h> 34111072Sjake#include <sys/malloc.h> 35130025Sphk#include <sys/module.h> 36111072Sjake 37133589Smarius#include <dev/ofw/ofw_bus.h> 38152684Smarius#include <dev/ofw/ofw_bus_subr.h> 39111072Sjake#include <dev/ofw/openfirm.h> 40111072Sjake 41111072Sjake#include <machine/bus.h> 42111072Sjake#include <machine/resource.h> 43111072Sjake 44111072Sjake#include <sys/rman.h> 45111072Sjake 46111072Sjake#include <sparc64/sbus/ofw_sbus.h> 47111072Sjake 48111072Sjakestruct central_devinfo { 49152684Smarius struct ofw_bus_devinfo cdi_obdinfo; 50143141Smarius struct resource_list cdi_rl; 51111072Sjake}; 52111072Sjake 53111072Sjakestruct central_softc { 54111072Sjake int sc_nrange; 55111072Sjake struct sbus_ranges *sc_ranges; 56111072Sjake}; 57111072Sjake 58143128Smariusstatic device_probe_t central_probe; 59143128Smariusstatic device_attach_t central_attach; 60143141Smariusstatic bus_print_child_t central_print_child; 61143128Smariusstatic bus_probe_nomatch_t central_probe_nomatch; 62143128Smariusstatic bus_alloc_resource_t central_alloc_resource; 63225931Smariusstatic bus_adjust_resource_t central_adjust_resource; 64143824Smariusstatic bus_get_resource_list_t central_get_resource_list; 65152684Smariusstatic ofw_bus_get_devinfo_t central_get_devinfo; 66111072Sjake 67152684Smariusstatic int central_print_res(struct central_devinfo *); 68152684Smarius 69111072Sjakestatic device_method_t central_methods[] = { 70167308Smarius /* Device interface */ 71111072Sjake DEVMETHOD(device_probe, central_probe), 72111072Sjake DEVMETHOD(device_attach, central_attach), 73154870Smarius DEVMETHOD(device_shutdown, bus_generic_shutdown), 74154870Smarius DEVMETHOD(device_suspend, bus_generic_suspend), 75154870Smarius DEVMETHOD(device_resume, bus_generic_resume), 76111072Sjake 77167308Smarius /* Bus interface */ 78143141Smarius DEVMETHOD(bus_print_child, central_print_child), 79111072Sjake DEVMETHOD(bus_probe_nomatch, central_probe_nomatch), 80111072Sjake DEVMETHOD(bus_alloc_resource, central_alloc_resource), 81111072Sjake DEVMETHOD(bus_activate_resource, bus_generic_activate_resource), 82111072Sjake DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource), 83225931Smarius DEVMETHOD(bus_adjust_resource, central_adjust_resource), 84190099Smarius DEVMETHOD(bus_release_resource, bus_generic_rl_release_resource), 85190099Smarius DEVMETHOD(bus_setup_intr, bus_generic_setup_intr), 86190099Smarius DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr), 87190099Smarius DEVMETHOD(bus_get_resource, bus_generic_rl_get_resource), 88143824Smarius DEVMETHOD(bus_get_resource_list, central_get_resource_list), 89190114Smarius DEVMETHOD(bus_child_pnpinfo_str, ofw_bus_gen_child_pnpinfo_str), 90111072Sjake 91133589Smarius /* ofw_bus interface */ 92152684Smarius DEVMETHOD(ofw_bus_get_devinfo, central_get_devinfo), 93152684Smarius DEVMETHOD(ofw_bus_get_compat, ofw_bus_gen_get_compat), 94152684Smarius DEVMETHOD(ofw_bus_get_model, ofw_bus_gen_get_model), 95152684Smarius DEVMETHOD(ofw_bus_get_name, ofw_bus_gen_get_name), 96152684Smarius DEVMETHOD(ofw_bus_get_node, ofw_bus_gen_get_node), 97152684Smarius DEVMETHOD(ofw_bus_get_type, ofw_bus_gen_get_type), 98133589Smarius 99227848Smarius DEVMETHOD_END 100111072Sjake}; 101111072Sjake 102111072Sjakestatic driver_t central_driver = { 103111072Sjake "central", 104111072Sjake central_methods, 105111072Sjake sizeof(struct central_softc), 106111072Sjake}; 107111072Sjake 108111072Sjakestatic devclass_t central_devclass; 109111072Sjake 110200874SmariusEARLY_DRIVER_MODULE(central, nexus, central_driver, central_devclass, 0, 0, 111200874Smarius BUS_PASS_BUS); 112200815SmariusMODULE_DEPEND(fhc, nexus, 1, 1, 1); 113182070SmariusMODULE_VERSION(central, 1); 114111072Sjake 115111072Sjakestatic int 116111072Sjakecentral_probe(device_t dev) 117111072Sjake{ 118111072Sjake 119167308Smarius if (strcmp(ofw_bus_get_name(dev), "central") == 0) { 120111072Sjake device_set_desc(dev, "central"); 121111072Sjake return (0); 122111072Sjake } 123111072Sjake return (ENXIO); 124111072Sjake} 125111072Sjake 126111072Sjakestatic int 127111072Sjakecentral_attach(device_t dev) 128111072Sjake{ 129111072Sjake struct central_devinfo *cdi; 130143141Smarius struct sbus_regs *reg; 131111072Sjake struct central_softc *sc; 132111072Sjake phandle_t child; 133111072Sjake phandle_t node; 134111072Sjake device_t cdev; 135143141Smarius int nreg; 136143141Smarius int i; 137111072Sjake 138111072Sjake sc = device_get_softc(dev); 139167308Smarius node = ofw_bus_get_node(dev); 140111072Sjake 141111072Sjake sc->sc_nrange = OF_getprop_alloc(node, "ranges", 142111072Sjake sizeof(*sc->sc_ranges), (void **)&sc->sc_ranges); 143111072Sjake if (sc->sc_nrange == -1) { 144143128Smarius device_printf(dev, "can't get ranges\n"); 145111072Sjake return (ENXIO); 146111072Sjake } 147111072Sjake 148111072Sjake for (child = OF_child(node); child != 0; child = OF_peer(child)) { 149152684Smarius cdi = malloc(sizeof(*cdi), M_DEVBUF, M_WAITOK | M_ZERO); 150152684Smarius if (ofw_bus_gen_setup_devinfo(&cdi->cdi_obdinfo, child) != 0) { 151152684Smarius free(cdi, M_DEVBUF); 152111072Sjake continue; 153152684Smarius } 154152684Smarius nreg = OF_getprop_alloc(child, "reg", sizeof(*reg), 155152684Smarius (void **)®); 156152684Smarius if (nreg == -1) { 157152684Smarius device_printf(dev, "<%s>: incomplete\n", 158152684Smarius cdi->cdi_obdinfo.obd_name); 159152684Smarius ofw_bus_gen_destroy_devinfo(&cdi->cdi_obdinfo); 160152684Smarius free(cdi, M_DEVBUF); 161152684Smarius continue; 162152684Smarius } 163152684Smarius resource_list_init(&cdi->cdi_rl); 164152684Smarius for (i = 0; i < nreg; i++) 165152684Smarius resource_list_add(&cdi->cdi_rl, SYS_RES_MEMORY, i, 166152684Smarius reg[i].sbr_offset, reg[i].sbr_offset + 167152684Smarius reg[i].sbr_size, reg[i].sbr_size); 168300173Sgonzo OF_prop_free(reg); 169111072Sjake cdev = device_add_child(dev, NULL, -1); 170152684Smarius if (cdev == NULL) { 171152684Smarius device_printf(dev, "<%s>: device_add_child failed\n", 172152684Smarius cdi->cdi_obdinfo.obd_name); 173152684Smarius resource_list_free(&cdi->cdi_rl); 174152684Smarius ofw_bus_gen_destroy_devinfo(&cdi->cdi_obdinfo); 175152684Smarius free(cdi, M_DEVBUF); 176152684Smarius continue; 177152684Smarius } 178152684Smarius device_set_ivars(cdev, cdi); 179111072Sjake } 180111072Sjake 181111072Sjake return (bus_generic_attach(dev)); 182111072Sjake} 183111072Sjake 184143141Smariusstatic int 185225931Smariuscentral_adjust_resource(device_t bus __unused, device_t child __unused, 186294883Sjhibbits int type __unused, struct resource *r __unused, rman_res_t start __unused, 187294883Sjhibbits rman_res_t end __unused) 188225931Smarius{ 189225931Smarius 190225931Smarius return (ENXIO); 191225931Smarius} 192225931Smarius 193225931Smariusstatic int 194143141Smariuscentral_print_child(device_t dev, device_t child) 195143141Smarius{ 196143141Smarius int rv; 197143141Smarius 198143141Smarius rv = bus_print_child_header(dev, child); 199152684Smarius rv += central_print_res(device_get_ivars(child)); 200143141Smarius rv += bus_print_child_footer(dev, child); 201143141Smarius return (rv); 202143141Smarius} 203143141Smarius 204111072Sjakestatic void 205111072Sjakecentral_probe_nomatch(device_t dev, device_t child) 206111072Sjake{ 207152684Smarius const char *type; 208111072Sjake 209152684Smarius device_printf(dev, "<%s>", ofw_bus_get_name(child)); 210152684Smarius central_print_res(device_get_ivars(child)); 211152684Smarius type = ofw_bus_get_type(child); 212143141Smarius printf(" type %s (no driver attached)\n", 213152684Smarius type != NULL ? type : "unknown"); 214111072Sjake} 215111072Sjake 216111072Sjakestatic struct resource * 217111072Sjakecentral_alloc_resource(device_t bus, device_t child, int type, int *rid, 218294883Sjhibbits rman_res_t start, rman_res_t end, rman_res_t count, u_int flags) 219111072Sjake{ 220143824Smarius struct resource_list *rl; 221143141Smarius struct resource_list_entry *rle; 222111072Sjake struct central_softc *sc; 223111072Sjake struct resource *res; 224111072Sjake bus_addr_t coffset; 225111072Sjake bus_addr_t cend; 226111072Sjake bus_addr_t phys; 227143141Smarius int isdefault; 228143824Smarius int passthrough; 229111072Sjake int i; 230111072Sjake 231295832Sjhibbits isdefault = RMAN_IS_DEFAULT_RANGE(start, end); 232143824Smarius passthrough = (device_get_parent(child) != bus); 233111072Sjake res = NULL; 234143824Smarius rle = NULL; 235143824Smarius rl = BUS_GET_RESOURCE_LIST(bus, child); 236111072Sjake sc = device_get_softc(bus); 237143141Smarius switch (type) { 238143141Smarius case SYS_RES_IRQ: 239143824Smarius return (resource_list_alloc(rl, bus, child, type, rid, start, 240143824Smarius end, count, flags)); 241143141Smarius case SYS_RES_MEMORY: 242143824Smarius if (!passthrough) { 243143824Smarius rle = resource_list_find(rl, type, *rid); 244143824Smarius if (rle == NULL) 245143824Smarius return (NULL); 246143824Smarius if (rle->res != NULL) 247143824Smarius panic("%s: resource entry is busy", __func__); 248143824Smarius if (isdefault) { 249143824Smarius start = rle->start; 250143824Smarius count = ulmax(count, rle->count); 251143824Smarius end = ulmax(rle->end, start + count - 1); 252143824Smarius } 253143824Smarius } 254143141Smarius for (i = 0; i < sc->sc_nrange; i++) { 255143141Smarius coffset = sc->sc_ranges[i].coffset; 256143141Smarius cend = coffset + sc->sc_ranges[i].size - 1; 257143141Smarius if (start >= coffset && end <= cend) { 258143141Smarius start -= coffset; 259143141Smarius end -= coffset; 260143141Smarius phys = sc->sc_ranges[i].poffset | 261143141Smarius ((bus_addr_t)sc->sc_ranges[i].pspace << 32); 262143141Smarius res = bus_generic_alloc_resource(bus, child, 263143141Smarius type, rid, phys + start, phys + end, 264143141Smarius count, flags); 265143824Smarius if (!passthrough) 266143824Smarius rle->res = res; 267143141Smarius break; 268143141Smarius } 269111072Sjake } 270143141Smarius break; 271111072Sjake } 272111072Sjake return (res); 273111072Sjake} 274133589Smarius 275143824Smariusstatic struct resource_list * 276143824Smariuscentral_get_resource_list(device_t bus, device_t child) 277143141Smarius{ 278143141Smarius struct central_devinfo *cdi; 279143141Smarius 280143141Smarius cdi = device_get_ivars(child); 281143824Smarius return (&cdi->cdi_rl); 282143141Smarius} 283143141Smarius 284152684Smariusstatic const struct ofw_bus_devinfo * 285152684Smariuscentral_get_devinfo(device_t bus, device_t child) 286133589Smarius{ 287152684Smarius struct central_devinfo *cdi; 288133589Smarius 289152684Smarius cdi = device_get_ivars(child); 290152684Smarius return (&cdi->cdi_obdinfo); 291133589Smarius} 292133589Smarius 293152684Smariusstatic int 294152684Smariuscentral_print_res(struct central_devinfo *cdi) 295133589Smarius{ 296133589Smarius 297152684Smarius return (resource_list_print_type(&cdi->cdi_rl, "mem", SYS_RES_MEMORY, 298297199Sjhibbits "%#jx")); 299133589Smarius} 300