1110285Snyan/*- 2110285Snyan * Copyright (c) 2000 KIYOHARA Takashi <kiyohara@kk.iij4u.ne.jp> 3110329Stakawata * Copyright (c) 2000 Takanori Watanabe <takawata@jp.FreeBSD.org> 4110333Snyan * All rights reserved. 5110285Snyan * 6110285Snyan * Redistribution and use in source and binary forms, with or without 7110285Snyan * modification, are permitted provided that the following conditions 8110285Snyan * are met: 9110285Snyan * 1. Redistributions of source code must retain the above copyright 10110285Snyan * notice, this list of conditions and the following disclaimer. 11110285Snyan * 2. Redistributions in binary form must reproduce the above copyright 12110285Snyan * notice, this list of conditions and the following disclaimer in the 13110285Snyan * documentation and/or other materials provided with the distribution. 14110285Snyan * 15110285Snyan * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16110285Snyan * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17110285Snyan * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18110285Snyan * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19110285Snyan * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20110285Snyan * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21110285Snyan * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22110285Snyan * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23110285Snyan * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24110285Snyan * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25110333Snyan * SUCH DAMAGE. 26110285Snyan * 27110285Snyan * $FreeBSD$ 28110285Snyan */ 29110285Snyan 30110285Snyan#include <sys/param.h> 31110285Snyan#include <sys/systm.h> 32110285Snyan#include <sys/bus.h> 33110285Snyan#include <sys/kernel.h> 34110285Snyan#include <sys/malloc.h> 35110285Snyan#include <sys/module.h> 36110285Snyan#include <sys/sysctl.h> 37110285Snyan 38110285Snyan 39110285Snyan#include <machine/bus.h> 40110285Snyan#include <machine/resource.h> 41110285Snyan#include <sys/rman.h> 42110285Snyan 43110285Snyan#include <pc98/pc98/canbus.h> 44110285Snyan#include <pc98/pc98/canbusvars.h> 45110285Snyan#include "canbus_if.h" 46110285Snyan 47110285Snyan 48110285Snyan#define CANBE_IO_DELAY_TIME 5000 49110285Snyan 50110285Snyan 51110285Snyanstatic MALLOC_DEFINE(M_CANBUSDEV, "canbusdev", "CanBe device"); 52110285Snyanstruct canbus_device { 53110285Snyan struct resource_list cbdev_resources; 54110285Snyan}; 55110285Snyan 56110285Snyan/* canbus softc */ 57110285Snyanstruct canbus_softc { 58110285Snyan int io_delay_time; /* CanBe I/O delay time */ 59110285Snyan 60110285Snyan struct sysctl_ctx_list canbus_sysctl_ctx; 61110285Snyan /* dynamic sysctl tree */ 62110285Snyan 63110285Snyan /* index register */ 64110285Snyan int index_id; /* index ID */ 65249586Sgabor struct resource *index_res; /* index resource */ 66110285Snyan bus_space_tag_t index_tag; /* index tag */ 67110285Snyan bus_space_handle_t index_handle; /* index handle */ 68110285Snyan 69110285Snyan /* data register */ 70110285Snyan int data_id; /* data ID */ 71249586Sgabor struct resource *data_res; /* data resource */ 72110285Snyan bus_space_tag_t data_tag; /* data tag */ 73110285Snyan bus_space_handle_t data_handle; /* data handle */ 74110285Snyan}; 75110285Snyan 76110285Snyan 77110285Snyan/* Device interface methods */ 78110285Snyanstatic void canbus_identify(driver_t *, device_t); 79110285Snyanstatic int canbus_probe(device_t); 80110285Snyanstatic int canbus_attach(device_t); 81110285Snyanstatic int canbus_detach(device_t); 82110285Snyan 83110285Snyan/* Bus interface methods */ 84110285Snyanstatic int canbus_print_child(device_t, device_t); 85212413Savgstatic device_t canbus_add_child(device_t, u_int, const char *, int); 86110285Snyanstatic struct resource * canbus_alloc_resource( 87294883Sjhibbits device_t, device_t, int, int *, rman_res_t, rman_res_t, rman_res_t, u_int); 88110285Snyanstatic int canbus_activate_resource( 89110285Snyan device_t, device_t, int, int, struct resource *); 90110285Snyanstatic int canbus_deactivate_resource( 91110285Snyan device_t, device_t, int, int, struct resource *); 92110285Snyanstatic int canbus_release_resource( 93110285Snyan device_t, device_t, int, int, struct resource *); 94110285Snyanstatic int canbus_set_resource ( 95294883Sjhibbits device_t, device_t, int, int, rman_res_t, rman_res_t); 96110285Snyanstatic void canbus_delete_resource(device_t, device_t, int, int); 97110285Snyan 98110285Snyan/* canbus local function */ 99110285Snyanstatic void set_ioresource(device_t dev); 100110285Snyanstatic void delete_ioresource(device_t dev); 101110285Snyanstatic int alloc_ioresource(device_t); 102110285Snyanstatic void release_ioresource(device_t); 103110285Snyanstatic int print_all_resources(device_t); 104110285Snyan 105110285Snyanstatic device_method_t canbus_methods[] = { 106110285Snyan /* Device interface */ 107110285Snyan DEVMETHOD(device_identify, canbus_identify), 108110285Snyan DEVMETHOD(device_probe, canbus_probe), 109110285Snyan DEVMETHOD(device_attach, canbus_attach), 110110285Snyan DEVMETHOD(device_detach, canbus_detach), 111110285Snyan 112110285Snyan /* Bus interface */ 113110285Snyan DEVMETHOD(bus_print_child, canbus_print_child), 114110285Snyan DEVMETHOD(bus_add_child, canbus_add_child), 115110285Snyan DEVMETHOD(bus_alloc_resource, canbus_alloc_resource), 116110285Snyan DEVMETHOD(bus_activate_resource, canbus_activate_resource), 117110285Snyan DEVMETHOD(bus_deactivate_resource, canbus_deactivate_resource), 118110285Snyan DEVMETHOD(bus_release_resource, canbus_release_resource), 119110285Snyan DEVMETHOD(bus_setup_intr, bus_generic_setup_intr), 120110285Snyan DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr), 121110285Snyan DEVMETHOD(bus_set_resource, canbus_set_resource), 122110285Snyan DEVMETHOD(bus_delete_resource, canbus_delete_resource), 123110285Snyan 124110285Snyan /* CanBe interface */ 125110285Snyan DEVMETHOD(canbus_read, canbus_read), 126110285Snyan DEVMETHOD(canbus_write, canbus_write), 127110285Snyan DEVMETHOD(canbus_write_multi, canbus_write_multi), 128110285Snyan 129110285Snyan {0, 0} 130110285Snyan}; 131110285Snyan 132110285Snyanstatic driver_t canbus_driver = { 133110285Snyan "canbus", 134110285Snyan canbus_methods, 135110285Snyan sizeof(struct canbus_softc), 136110285Snyan}; 137110285Snyan 138110285Snyandevclass_t canbus_devclass; 139110285SnyanDRIVER_MODULE(canbus, nexus, canbus_driver, canbus_devclass, 0, 0); 140110285SnyanMODULE_VERSION(canbus, 1); 141110285Snyan 142110285Snyan 143110285Snyanstatic void 144110285Snyancanbus_identify(driver_t *drv, device_t parent) 145110285Snyan{ 146110285Snyan if (device_find_child(parent, "canbus", 0) == NULL) { 147110285Snyan if (BUS_ADD_CHILD(parent, 33, "canbus", 0) == NULL) 148110285Snyan device_printf(parent, "canbus cannot attach\n"); 149110285Snyan } 150110285Snyan} 151110285Snyan 152110285Snyan 153110285Snyanstatic int 154110285Snyancanbus_probe(device_t dev) 155110285Snyan{ 156110285Snyan u_int8_t flag; 157110285Snyan 158110285Snyan set_ioresource(dev); 159110285Snyan if(alloc_ioresource(dev)) 160110285Snyan return (ENXIO); 161110285Snyan flag = canbus_read(dev, NULL, CANBE_SOUND_INTR_ADDR); 162110285Snyan release_ioresource(dev); 163110285Snyan 164110285Snyan if (bootverbose) 165110285Snyan device_printf(dev, "probe flag = 0x%x\n", flag); 166110285Snyan 167110285Snyan if (flag != CANBE_SOUND_INTR_VAL0 && flag != CANBE_SOUND_INTR_VAL1 && 168110285Snyan flag != CANBE_SOUND_INTR_VAL2 && flag != CANBE_SOUND_INTR_VAL3) { 169110285Snyan device_printf(dev, "Device Not Found\n"); 170110285Snyan return (ENXIO); 171110285Snyan } 172110285Snyan device_set_desc(dev, "CanBe I/O Bus"); 173110285Snyan 174110285Snyan return (0); 175110285Snyan} 176110285Snyan 177110285Snyanstatic int 178110285Snyancanbus_attach(device_t dev) 179110285Snyan{ 180110285Snyan struct canbus_softc *sc = device_get_softc(dev); 181110285Snyan struct sysctl_oid *canbus_sysctl_tree; 182110285Snyan 183110285Snyan sc->io_delay_time = CANBE_IO_DELAY_TIME; 184110285Snyan 185110285Snyan /* I/O resource setup */ 186110285Snyan if(alloc_ioresource(dev)) 187110285Snyan return (ENXIO); 188110285Snyan 189110285Snyan /* Dynamic sysctl tree setup */ 190110285Snyan sysctl_ctx_init(&sc->canbus_sysctl_ctx); 191268005Shselasky canbus_sysctl_tree = SYSCTL_ADD_ROOT_NODE(&sc->canbus_sysctl_ctx, 192268005Shselasky OID_AUTO, "canbus", CTLFLAG_RD, 0, "CanBe I/O Bus"); 193110285Snyan SYSCTL_ADD_INT(&sc->canbus_sysctl_ctx, 194110285Snyan SYSCTL_CHILDREN(canbus_sysctl_tree), OID_AUTO, "io_delay_time", 195110285Snyan CTLFLAG_RW, &sc->io_delay_time, 0, "CanBe Bus I/O delay time"); 196110285Snyan 197110285Snyan bus_generic_probe(dev); 198110285Snyan bus_generic_attach(dev); 199110285Snyan 200110285Snyan return (0); 201110285Snyan} 202110285Snyan 203110285Snyan 204110285Snyanstatic int 205110285Snyancanbus_detach(device_t dev) 206110285Snyan{ 207110285Snyan struct canbus_softc *sc = device_get_softc(dev); 208110285Snyan 209110285Snyan /* I/O resource free */ 210110285Snyan release_ioresource(dev); 211110285Snyan delete_ioresource(dev); 212110285Snyan 213110285Snyan /* Dynamic sysctl tree destroy */ 214110285Snyan if (sysctl_ctx_free(&sc->canbus_sysctl_ctx)) { 215110285Snyan device_printf(dev, 216110285Snyan "can't free this context - other oids depend on it\n"); 217110285Snyan return (ENOTEMPTY); 218110285Snyan } 219110285Snyan 220110285Snyan return (0); 221110285Snyan} 222110285Snyan 223110285Snyan 224110285Snyanstatic int 225110285Snyancanbus_print_child(device_t dev, device_t child) 226110285Snyan{ 227110285Snyan int retval = 0; 228110285Snyan 229110285Snyan retval += bus_print_child_header(dev, child); 230110285Snyan retval += print_all_resources(child); 231110285Snyan retval += bus_print_child_footer(dev, child); 232110285Snyan 233110285Snyan return (retval); 234110285Snyan} 235110285Snyan 236110285Snyanstatic device_t 237212413Savgcanbus_add_child(device_t bus, u_int order, const char *name, int unit) 238110285Snyan{ 239110285Snyan device_t child; 240110285Snyan struct canbus_device *cbdev; 241110285Snyan 242110285Snyan child = device_add_child_ordered(bus, order, name, unit); 243110285Snyan 244110285Snyan cbdev = malloc( 245110285Snyan sizeof(struct canbus_device), M_CANBUSDEV, M_NOWAIT | M_ZERO); 246110285Snyan if (!cbdev) 247110285Snyan return (0); 248110285Snyan 249110285Snyan resource_list_init(&cbdev->cbdev_resources); 250110285Snyan device_set_ivars(child, cbdev); 251110285Snyan 252110285Snyan return (child); 253110285Snyan} 254110285Snyan 255110285Snyanstatic struct resource * 256110285Snyancanbus_alloc_resource(device_t dev, device_t child, int type, 257294883Sjhibbits int *rid, rman_res_t start, rman_res_t end, rman_res_t count, u_int flags) 258110285Snyan{ 259110285Snyan return (BUS_ALLOC_RESOURCE(device_get_parent(dev), 260110285Snyan child, type, rid, start, end, count, flags)); 261110285Snyan} 262110285Snyan 263110285Snyanstatic int 264110285Snyancanbus_activate_resource( 265110285Snyan device_t dev, device_t child, int type, int rid, struct resource *res) 266110285Snyan{ 267110285Snyan return (BUS_ACTIVATE_RESOURCE( 268110285Snyan device_get_parent(dev), child, type, rid, res)); 269110285Snyan} 270110285Snyan 271110285Snyanstatic int 272110285Snyancanbus_deactivate_resource( 273110285Snyan device_t dev, device_t child, int type, int rid, struct resource *res) 274110285Snyan{ 275110285Snyan return (BUS_DEACTIVATE_RESOURCE( 276110285Snyan device_get_parent(dev), child, type, rid, res)); 277110285Snyan} 278110285Snyan 279110285Snyanstatic int 280110285Snyancanbus_release_resource( 281110285Snyan device_t dev, device_t child, int type, int rid, struct resource *res) 282110285Snyan{ 283110285Snyan return (BUS_RELEASE_RESOURCE( 284110285Snyan device_get_parent(dev), child, type, rid, res)); 285110285Snyan} 286110285Snyan 287110285Snyanstatic int 288110285Snyancanbus_set_resource ( 289294883Sjhibbits device_t dev, device_t child, int type, int rid, rman_res_t start, 290294883Sjhibbits rman_res_t count) 291110285Snyan{ 292110285Snyan struct canbus_device *cbdev = 293110285Snyan (struct canbus_device *)device_get_ivars(child); 294110285Snyan struct resource_list *rl = &cbdev->cbdev_resources; 295110285Snyan 296110285Snyan resource_list_add(rl, type, rid, start, (start + count - 1), count); 297110285Snyan 298110285Snyan return (0); 299110285Snyan} 300110285Snyan 301110285Snyanstatic void 302110285Snyancanbus_delete_resource(device_t dev, device_t child, int type, int rid) 303110285Snyan{ 304110285Snyan struct canbus_device *cbdev = 305110285Snyan (struct canbus_device *)device_get_ivars(child); 306110285Snyan struct resource_list *rl = &cbdev->cbdev_resources; 307110285Snyan 308110285Snyan resource_list_delete(rl, type, rid); 309110285Snyan} 310110285Snyan 311110285Snyan 312110285Snyanu_int8_t 313110285Snyancanbus_read(device_t dev, device_t child, int reg) 314110285Snyan{ 315110285Snyan struct canbus_softc *sc = device_get_softc(dev); 316110285Snyan 317110285Snyan bus_space_write_1(sc->index_tag, sc->index_handle, 0, reg); 318110285Snyan return (bus_space_read_1(sc->data_tag, sc->data_handle, 0)); 319110285Snyan} 320110285Snyan 321110285Snyanvoid 322110285Snyancanbus_write(device_t dev, device_t child, int reg, u_int8_t val) 323110285Snyan{ 324110285Snyan struct canbus_softc *sc = device_get_softc(dev); 325110285Snyan 326110285Snyan bus_space_write_1(sc->index_tag, sc->index_handle, 0, reg); 327110285Snyan bus_space_write_1(sc->data_tag, sc->data_handle, 0, val); 328110285Snyan} 329110285Snyan 330110285Snyanvoid 331110285Snyancanbus_write_multi(device_t dev, 332110285Snyan device_t child, int reg, const int count, const u_int8_t *vals) 333110285Snyan{ 334110285Snyan struct canbus_softc *sc = device_get_softc(dev); 335110285Snyan int i; 336110285Snyan 337110285Snyan bus_space_write_1(sc->index_tag, sc->index_handle, 0, reg); 338110285Snyan 339110285Snyan for (i = 0; i < count; i ++) { 340110285Snyan bus_space_write_1(sc->data_tag, sc->data_handle, 0, vals[i]); 341110285Snyan DELAY(sc->io_delay_time); 342110285Snyan } 343110285Snyan} 344110285Snyan 345110285Snyanvoid 346110285Snyancanbus_delay(device_t dev, device_t child) 347110285Snyan{ 348110285Snyan struct canbus_softc *sc = device_get_softc(dev); 349110285Snyan 350110285Snyan DELAY(sc->io_delay_time); 351110285Snyan} 352110285Snyan 353110285Snyan 354110285Snyan/* 355110285Snyan * canbus local function. 356110285Snyan */ 357110285Snyan 358110285Snyan/* 359110285Snyan * CanBe I/O resource set function 360110285Snyan */ 361110285Snyanstatic void 362110285Snyanset_ioresource(device_t dev) 363110285Snyan{ 364110285Snyan struct canbus_softc *sc = device_get_softc(dev); 365110285Snyan 366110285Snyan sc->index_id = 0; 367110285Snyan sc->data_id = 1; 368110285Snyan 369110285Snyan bus_set_resource( 370110285Snyan dev, SYS_RES_IOPORT, sc->index_id, CANBE_IOPORT_INDEX, 1); 371110285Snyan bus_set_resource( 372110285Snyan dev, SYS_RES_IOPORT, sc->data_id, CANBE_IOPORT_DATA, 1); 373110285Snyan} 374110285Snyan 375110285Snyan/* 376110285Snyan * CanBe I/O resource delete function 377110285Snyan */ 378110285Snyanstatic void 379110285Snyandelete_ioresource(device_t dev) 380110285Snyan{ 381110285Snyan struct canbus_softc *sc = device_get_softc(dev); 382110285Snyan 383110285Snyan bus_delete_resource(dev, SYS_RES_IOPORT, sc->index_id); 384110285Snyan bus_delete_resource(dev, SYS_RES_IOPORT, sc->data_id); 385110285Snyan} 386110285Snyan 387110285Snyan/* 388110285Snyan * CanBe I/O resource alloc function 389110285Snyan */ 390110285Snyanstatic int 391110285Snyanalloc_ioresource(device_t dev) 392110285Snyan{ 393110285Snyan struct canbus_softc *sc = device_get_softc(dev); 394110285Snyan 395127135Snjl sc->index_res = bus_alloc_resource_any( 396127135Snjl dev, SYS_RES_IOPORT, &sc->index_id, RF_ACTIVE); 397127135Snjl sc->data_res = bus_alloc_resource_any( 398127135Snjl dev, SYS_RES_IOPORT, &sc->data_id, RF_ACTIVE); 399110285Snyan if (sc->index_res == NULL || sc->data_res == NULL) { 400110285Snyan device_printf(dev, "could not map I/O\n"); 401110285Snyan return (ENXIO); 402110285Snyan } 403110285Snyan 404110285Snyan sc->index_tag = rman_get_bustag(sc->index_res); 405110285Snyan sc->index_handle = rman_get_bushandle(sc->index_res); 406110285Snyan sc->data_tag = rman_get_bustag(sc->data_res); 407110285Snyan sc->data_handle = rman_get_bushandle(sc->data_res); 408110285Snyan 409110285Snyan return (0); 410110285Snyan} 411110285Snyan 412110285Snyan/* 413110285Snyan * CanBe I/O resource release function 414110285Snyan */ 415110285Snyanstatic void 416110285Snyanrelease_ioresource(device_t dev) 417110285Snyan{ 418110285Snyan struct canbus_softc *sc = device_get_softc(dev); 419110285Snyan 420110285Snyan bus_release_resource(dev, SYS_RES_IOPORT, sc->index_id, sc->index_res); 421110285Snyan bus_release_resource(dev, SYS_RES_IOPORT, sc->data_id, sc->data_res); 422110285Snyan} 423110285Snyan 424110285Snyan 425110285Snyanstatic int 426110285Snyanprint_all_resources(device_t dev) 427110285Snyan{ 428110285Snyan struct canbus_device *cbdev = 429110285Snyan (struct canbus_device *)device_get_ivars(dev); 430110285Snyan struct resource_list *rl = &cbdev->cbdev_resources; 431110285Snyan int retval = 0; 432110285Snyan 433143866Snyan if (STAILQ_FIRST(rl)) 434110285Snyan retval += printf(" at"); 435110285Snyan 436297199Sjhibbits retval += resource_list_print_type(rl, "port", SYS_RES_IOPORT, "%#jx"); 437297199Sjhibbits retval += resource_list_print_type(rl, "iomem", SYS_RES_MEMORY, "%#jx"); 438297199Sjhibbits retval += resource_list_print_type(rl, "irq", SYS_RES_IRQ, "%jd"); 439110285Snyan 440110285Snyan return retval; 441110285Snyan} 442