1166144Smarius/*- 2166144Smarius * Copyright (c) 2006 Marius Strobl <marius@FreeBSD.org> 3166144Smarius * All rights reserved. 4166144Smarius * 5166144Smarius * Redistribution and use in source and binary forms, with or without 6166144Smarius * modification, are permitted provided that the following conditions 7166144Smarius * are met: 8166144Smarius * 1. Redistributions of source code must retain the above copyright 9166144Smarius * notice, this list of conditions and the following disclaimer. 10166144Smarius * 2. Redistributions in binary form must reproduce the above copyright 11166144Smarius * notice, this list of conditions and the following disclaimer in the 12166144Smarius * documentation and/or other materials provided with the distribution. 13166144Smarius * 14166144Smarius * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15166144Smarius * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16166144Smarius * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17166144Smarius * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18166144Smarius * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19166144Smarius * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20166144Smarius * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21166144Smarius * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22166144Smarius * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23166144Smarius * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24166144Smarius * SUCH DAMAGE. 25166144Smarius */ 26166144Smarius 27166144Smarius#include <sys/cdefs.h> 28166144Smarius__FBSDID("$FreeBSD$"); 29166144Smarius 30166144Smarius#include <sys/param.h> 31166144Smarius#include <sys/systm.h> 32166144Smarius#include <sys/bus.h> 33166144Smarius#include <sys/kernel.h> 34166144Smarius#include <sys/module.h> 35166144Smarius#include <sys/resource.h> 36166144Smarius#include <sys/rman.h> 37166144Smarius 38166144Smarius#include <dev/ofw/ofw_bus.h> 39166144Smarius#include <dev/ofw/ofw_bus_subr.h> 40166144Smarius#include <dev/ofw/openfirm.h> 41166144Smarius 42166144Smarius#include <machine/bus.h> 43166144Smarius#include <machine/bus_common.h> 44166144Smarius#include <machine/resource.h> 45166144Smarius 46166144Smarius#include <sparc64/sbus/ofw_sbus.h> 47166144Smarius#include <sparc64/sbus/sbusreg.h> 48166144Smarius#include <sparc64/sbus/sbusvar.h> 49166144Smarius 50166144Smariusstruct lebuffer_devinfo { 51166144Smarius struct ofw_bus_devinfo ldi_obdinfo; 52166144Smarius struct resource_list ldi_rl; 53166144Smarius}; 54166144Smarius 55166144Smariusstatic devclass_t lebuffer_devclass; 56166144Smarius 57166144Smariusstatic device_probe_t lebuffer_probe; 58166144Smariusstatic device_attach_t lebuffer_attach; 59166144Smariusstatic device_detach_t lebuffer_detach; 60166144Smariusstatic bus_print_child_t lebuffer_print_child; 61166144Smariusstatic bus_probe_nomatch_t lebuffer_probe_nomatch; 62166144Smariusstatic bus_get_resource_list_t lebuffer_get_resource_list; 63166144Smariusstatic ofw_bus_get_devinfo_t lebuffer_get_devinfo; 64166144Smarius 65166144Smariusstatic struct lebuffer_devinfo *lebuffer_setup_dinfo(device_t, phandle_t); 66166144Smariusstatic void lebuffer_destroy_dinfo(struct lebuffer_devinfo *); 67166144Smariusstatic int lebuffer_print_res(struct lebuffer_devinfo *); 68166144Smarius 69166144Smariusstatic device_method_t lebuffer_methods[] = { 70166144Smarius /* Device interface */ 71166144Smarius DEVMETHOD(device_probe, lebuffer_probe), 72166144Smarius DEVMETHOD(device_attach, lebuffer_attach), 73166144Smarius DEVMETHOD(device_detach, lebuffer_detach), 74166144Smarius DEVMETHOD(device_shutdown, bus_generic_shutdown), 75166144Smarius DEVMETHOD(device_suspend, bus_generic_suspend), 76166144Smarius DEVMETHOD(device_resume, bus_generic_resume), 77166144Smarius 78166144Smarius /* Bus interface */ 79166144Smarius DEVMETHOD(bus_print_child, lebuffer_print_child), 80166144Smarius DEVMETHOD(bus_probe_nomatch, lebuffer_probe_nomatch), 81166144Smarius DEVMETHOD(bus_setup_intr, bus_generic_setup_intr), 82166144Smarius DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr), 83166144Smarius DEVMETHOD(bus_alloc_resource, bus_generic_rl_alloc_resource), 84225931Smarius DEVMETHOD(bus_adjust_resource, bus_generic_adjust_resource), 85166144Smarius DEVMETHOD(bus_release_resource, bus_generic_rl_release_resource), 86166144Smarius DEVMETHOD(bus_activate_resource, bus_generic_activate_resource), 87166144Smarius DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource), 88166144Smarius DEVMETHOD(bus_get_resource_list, lebuffer_get_resource_list), 89166144Smarius DEVMETHOD(bus_get_resource, bus_generic_rl_get_resource), 90166144Smarius 91166144Smarius /* ofw_bus interface */ 92166144Smarius DEVMETHOD(ofw_bus_get_devinfo, lebuffer_get_devinfo), 93166144Smarius DEVMETHOD(ofw_bus_get_compat, ofw_bus_gen_get_compat), 94166144Smarius DEVMETHOD(ofw_bus_get_model, ofw_bus_gen_get_model), 95166144Smarius DEVMETHOD(ofw_bus_get_name, ofw_bus_gen_get_name), 96166144Smarius DEVMETHOD(ofw_bus_get_node, ofw_bus_gen_get_node), 97166144Smarius DEVMETHOD(ofw_bus_get_type, ofw_bus_gen_get_type), 98166144Smarius 99166144Smarius { 0, 0 } 100166144Smarius}; 101166144Smarius 102166144SmariusDEFINE_CLASS_0(lebuffer, lebuffer_driver, lebuffer_methods, 1); 103166144SmariusDRIVER_MODULE(lebuffer, sbus, lebuffer_driver, lebuffer_devclass, 0, 0); 104183337SmariusMODULE_DEPEND(lebuffer, sbus, 1, 1, 1); 105183337SmariusMODULE_VERSION(lebuffer, 1); 106166144Smarius 107166144Smariusstatic int 108166144Smariuslebuffer_probe(device_t dev) 109166144Smarius{ 110166144Smarius const char *name; 111166144Smarius 112166144Smarius name = ofw_bus_get_name(dev); 113166144Smarius if (strcmp(name, "lebuffer") == 0) { 114166144Smarius device_set_desc_copy(dev, name); 115166144Smarius return (0); 116166144Smarius } 117166144Smarius return (ENXIO); 118166144Smarius} 119166144Smarius 120166144Smariusstatic int 121166144Smariuslebuffer_attach(device_t dev) 122166144Smarius{ 123166144Smarius struct lebuffer_devinfo *ldi; 124166144Smarius device_t cdev; 125166144Smarius phandle_t child; 126166144Smarius int children; 127166144Smarius 128166144Smarius children = 0; 129166144Smarius for (child = OF_child(ofw_bus_get_node(dev)); child != 0; 130166144Smarius child = OF_peer(child)) { 131166144Smarius if ((ldi = lebuffer_setup_dinfo(dev, child)) == NULL) 132166144Smarius continue; 133166144Smarius if (children != 0) { 134166144Smarius device_printf(dev, 135166144Smarius "<%s>: only one child per buffer supported\n", 136166144Smarius ldi->ldi_obdinfo.obd_name); 137166144Smarius lebuffer_destroy_dinfo(ldi); 138166144Smarius continue; 139166144Smarius } 140166144Smarius if ((cdev = device_add_child(dev, NULL, -1)) == NULL) { 141166144Smarius device_printf(dev, "<%s>: device_add_child failed\n", 142166144Smarius ldi->ldi_obdinfo.obd_name); 143166144Smarius lebuffer_destroy_dinfo(ldi); 144166144Smarius continue; 145166144Smarius } 146166144Smarius device_set_ivars(cdev, ldi); 147166144Smarius children++; 148166144Smarius } 149166144Smarius return (bus_generic_attach(dev)); 150166144Smarius} 151166144Smarius 152166144Smariusstatic int 153166144Smariuslebuffer_detach(device_t dev) 154166144Smarius{ 155166144Smarius device_t *children; 156166144Smarius int i, nchildren; 157166144Smarius 158166144Smarius bus_generic_detach(dev); 159166144Smarius if (device_get_children(dev, &children, &nchildren) == 0) { 160166144Smarius for (i = 0; i < nchildren; i++) { 161166144Smarius lebuffer_destroy_dinfo(device_get_ivars(children[i])); 162166144Smarius device_delete_child(dev, children[i]); 163166144Smarius } 164166144Smarius free(children, M_TEMP); 165166144Smarius } 166166144Smarius return (0); 167166144Smarius} 168166144Smarius 169166144Smariusstatic struct lebuffer_devinfo * 170166144Smariuslebuffer_setup_dinfo(device_t dev, phandle_t node) 171166144Smarius{ 172166144Smarius struct lebuffer_devinfo *ldi; 173166144Smarius struct sbus_regs *reg; 174166144Smarius uint32_t base, iv, *intr; 175166144Smarius int i, nreg, nintr, slot, rslot; 176166144Smarius 177166144Smarius ldi = malloc(sizeof(*ldi), M_DEVBUF, M_WAITOK | M_ZERO); 178166144Smarius if (ofw_bus_gen_setup_devinfo(&ldi->ldi_obdinfo, node) != 0) { 179166144Smarius free(ldi, M_DEVBUF); 180166144Smarius return (NULL); 181166144Smarius } 182166144Smarius resource_list_init(&ldi->ldi_rl); 183166144Smarius slot = -1; 184166144Smarius nreg = OF_getprop_alloc(node, "reg", sizeof(*reg), (void **)®); 185166144Smarius if (nreg == -1) { 186166144Smarius device_printf(dev, "<%s>: incomplete\n", 187166144Smarius ldi->ldi_obdinfo.obd_name); 188166144Smarius goto fail; 189166144Smarius } 190166144Smarius for (i = 0; i < nreg; i++) { 191166144Smarius base = reg[i].sbr_offset; 192166144Smarius if (SBUS_ABS(base)) { 193166144Smarius rslot = SBUS_ABS_TO_SLOT(base); 194166144Smarius base = SBUS_ABS_TO_OFFSET(base); 195166144Smarius } else 196166144Smarius rslot = reg[i].sbr_slot; 197166144Smarius if (slot != -1 && slot != rslot) { 198166144Smarius device_printf(dev, "<%s>: multiple slots\n", 199166144Smarius ldi->ldi_obdinfo.obd_name); 200166144Smarius free(reg, M_OFWPROP); 201166144Smarius goto fail; 202166144Smarius } 203166144Smarius slot = rslot; 204166144Smarius 205166144Smarius resource_list_add(&ldi->ldi_rl, SYS_RES_MEMORY, i, base, 206166144Smarius base + reg[i].sbr_size, reg[i].sbr_size); 207166144Smarius } 208166144Smarius free(reg, M_OFWPROP); 209166144Smarius if (slot != sbus_get_slot(dev)) { 210166144Smarius device_printf(dev, "<%s>: parent and child slot do not match\n", 211166144Smarius ldi->ldi_obdinfo.obd_name); 212166144Smarius goto fail; 213166144Smarius } 214166144Smarius 215166144Smarius /* 216166144Smarius * The `interrupts' property contains the SBus interrupt level. 217166144Smarius */ 218166144Smarius nintr = OF_getprop_alloc(node, "interrupts", sizeof(*intr), 219166144Smarius (void **)&intr); 220166144Smarius if (nintr != -1) { 221166144Smarius for (i = 0; i < nintr; i++) { 222166144Smarius iv = intr[i]; 223166144Smarius /* 224166144Smarius * SBus card devices need the slot number encoded into 225166144Smarius * the vector as this is generally not done. 226166144Smarius */ 227166144Smarius if ((iv & INTMAP_OBIO_MASK) == 0) 228166144Smarius iv |= slot << 3; 229166144Smarius /* Set the IGN as appropriate. */ 230166144Smarius iv |= sbus_get_ign(dev) << INTMAP_IGN_SHIFT; 231166144Smarius resource_list_add(&ldi->ldi_rl, SYS_RES_IRQ, i, 232166144Smarius iv, iv, 1); 233166144Smarius } 234166144Smarius free(intr, M_OFWPROP); 235166144Smarius } 236166144Smarius return (ldi); 237166144Smarius 238166144Smarius fail: 239166144Smarius lebuffer_destroy_dinfo(ldi); 240166144Smarius return (NULL); 241166144Smarius} 242166144Smarius 243166144Smariusstatic void 244166144Smariuslebuffer_destroy_dinfo(struct lebuffer_devinfo *dinfo) 245166144Smarius{ 246166144Smarius 247166144Smarius resource_list_free(&dinfo->ldi_rl); 248166144Smarius ofw_bus_gen_destroy_devinfo(&dinfo->ldi_obdinfo); 249166144Smarius free(dinfo, M_DEVBUF); 250166144Smarius} 251166144Smarius 252166144Smariusstatic int 253166144Smariuslebuffer_print_child(device_t dev, device_t child) 254166144Smarius{ 255166144Smarius int rv; 256166144Smarius 257166144Smarius rv = bus_print_child_header(dev, child); 258166144Smarius rv += lebuffer_print_res(device_get_ivars(child)); 259166144Smarius rv += bus_print_child_footer(dev, child); 260166144Smarius return (rv); 261166144Smarius} 262166144Smarius 263166144Smariusstatic void 264166144Smariuslebuffer_probe_nomatch(device_t dev, device_t child) 265166144Smarius{ 266166144Smarius const char *type; 267166144Smarius 268166144Smarius device_printf(dev, "<%s>", ofw_bus_get_name(child)); 269166144Smarius lebuffer_print_res(device_get_ivars(child)); 270166144Smarius type = ofw_bus_get_type(child); 271166144Smarius printf(" type %s (no driver attached)\n", 272166144Smarius type != NULL ? type : "unknown"); 273166144Smarius} 274166144Smarius 275166144Smariusstatic struct resource_list * 276166144Smariuslebuffer_get_resource_list(device_t dev, device_t child) 277166144Smarius{ 278166144Smarius struct lebuffer_devinfo *ldi; 279166144Smarius 280166144Smarius ldi = device_get_ivars(child); 281166144Smarius return (&ldi->ldi_rl); 282166144Smarius} 283166144Smarius 284166144Smariusstatic const struct ofw_bus_devinfo * 285166144Smariuslebuffer_get_devinfo(device_t bus, device_t child) 286166144Smarius{ 287166144Smarius struct lebuffer_devinfo *ldi; 288166144Smarius 289166144Smarius ldi = device_get_ivars(child); 290166144Smarius return (&ldi->ldi_obdinfo); 291166144Smarius} 292166144Smarius 293166144Smariusstatic int 294166144Smariuslebuffer_print_res(struct lebuffer_devinfo *ldi) 295166144Smarius{ 296166144Smarius int rv; 297166144Smarius 298166144Smarius rv = 0; 299166144Smarius rv += resource_list_print_type(&ldi->ldi_rl, "mem", SYS_RES_MEMORY, 300166144Smarius "%#lx"); 301166144Smarius rv += resource_list_print_type(&ldi->ldi_rl, "irq", SYS_RES_IRQ, "%ld"); 302166144Smarius return (rv); 303166144Smarius} 304