1139749Simp/*- 239223Sgibbs * Product specific probe and attach routines for: 339223Sgibbs * Buslogic BT-54X and BT-445 cards 439223Sgibbs * 544579Sgibbs * Copyright (c) 1998, 1999 Justin T. Gibbs 639223Sgibbs * All rights reserved. 739223Sgibbs * 839223Sgibbs * Redistribution and use in source and binary forms, with or without 939223Sgibbs * modification, are permitted provided that the following conditions 1039223Sgibbs * are met: 1139223Sgibbs * 1. Redistributions of source code must retain the above copyright 1239223Sgibbs * notice, this list of conditions, and the following disclaimer, 1339223Sgibbs * without modification, immediately at the beginning of the file. 1439223Sgibbs * 2. The name of the author may not be used to endorse or promote products 1539223Sgibbs * derived from this software without specific prior written permission. 1639223Sgibbs * 1739223Sgibbs * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1839223Sgibbs * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1939223Sgibbs * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2039223Sgibbs * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 2139223Sgibbs * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2239223Sgibbs * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2339223Sgibbs * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2439223Sgibbs * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2539223Sgibbs * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2639223Sgibbs * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2739223Sgibbs * SUCH DAMAGE. 2839223Sgibbs * 2939223Sgibbs */ 3039223Sgibbs 31119418Sobrien#include <sys/cdefs.h> 32119418Sobrien__FBSDID("$FreeBSD$"); 33119418Sobrien 3439223Sgibbs#include <sys/param.h> 3539223Sgibbs#include <sys/systm.h> 3645791Speter#include <sys/kernel.h> 3745791Speter#include <sys/module.h> 38117126Sscottl#include <sys/lock.h> 39117126Sscottl#include <sys/mutex.h> 4045791Speter#include <sys/bus.h> 4139223Sgibbs 4239223Sgibbs#include <machine/bus.h> 4345791Speter#include <machine/resource.h> 4445791Speter#include <sys/rman.h> 4539223Sgibbs 4645791Speter#include <isa/isavar.h> 4739223Sgibbs#include <dev/buslogic/btreg.h> 4839223Sgibbs 4939223Sgibbs#include <cam/scsi/scsi_all.h> 5039223Sgibbs 5139223Sgibbsstatic bus_dma_filter_t btvlbouncefilter; 5239223Sgibbsstatic bus_dmamap_callback_t btmapsensebuffers; 5339223Sgibbs 5445791Speterstatic int 5547399Sdfrbt_isa_alloc_resources(device_t dev, u_long portstart, u_long portend) 5639223Sgibbs{ 5745791Speter int rid; 5845791Speter struct resource *port; 5945791Speter struct resource *irq; 6045791Speter struct resource *drq; 6139223Sgibbs 6245791Speter rid = 0; 6345791Speter port = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 6447399Sdfr portstart, portend, BT_NREGS, RF_ACTIVE); 6545791Speter if (!port) 6645791Speter return (ENOMEM); 6745791Speter 6845791Speter if (isa_get_irq(dev) != -1) { 6945791Speter rid = 0; 70127135Snjl irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE); 7145791Speter if (!irq) { 7245791Speter if (port) 7345791Speter bus_release_resource(dev, SYS_RES_IOPORT, 7445791Speter 0, port); 7545791Speter return (ENOMEM); 7645791Speter } 7745791Speter } else 78241592Sjhb irq = NULL; 7945791Speter 8045791Speter if (isa_get_drq(dev) != -1) { 8145791Speter rid = 0; 82127135Snjl drq = bus_alloc_resource_any(dev, SYS_RES_DRQ, &rid, RF_ACTIVE); 8345791Speter if (!drq) { 8445791Speter if (port) 8545791Speter bus_release_resource(dev, SYS_RES_IOPORT, 8645791Speter 0, port); 8745791Speter if (irq) 8845791Speter bus_release_resource(dev, SYS_RES_IRQ, 8945791Speter 0, irq); 9045791Speter return (ENOMEM); 9145791Speter } 9245791Speter } else 93241592Sjhb drq = NULL; 9445791Speter 9545791Speter bt_init_softc(dev, port, irq, drq); 9645791Speter 9745791Speter return (0); 9845791Speter} 9945791Speter 10045791Speterstatic void 10145791Speterbt_isa_release_resources(device_t dev) 10245791Speter{ 10345791Speter struct bt_softc *bt = device_get_softc(dev); 10445791Speter 10545791Speter if (bt->port) 10645791Speter bus_release_resource(dev, SYS_RES_IOPORT, 0, bt->port); 10745791Speter if (bt->irq) 10845796Speter bus_release_resource(dev, SYS_RES_IRQ, 0, bt->irq); 10945791Speter if (bt->drq) 11045796Speter bus_release_resource(dev, SYS_RES_DRQ, 0, bt->drq); 11145791Speter bt_free_softc(dev); 11245791Speter} 11345791Speter 11439223Sgibbs/* 11539223Sgibbs * Check if the device can be found at the port given 11639223Sgibbs * and if so, set it up ready for further work 11739223Sgibbs * as an argument, takes the isa_device structure from 11839223Sgibbs * autoconf.c 11939223Sgibbs */ 12039223Sgibbsstatic int 12145791Speterbt_isa_probe(device_t dev) 12239223Sgibbs{ 12339223Sgibbs /* 12439223Sgibbs * find unit and check we have that many defined 12539223Sgibbs */ 12639223Sgibbs int port_index; 12739223Sgibbs int max_port_index; 12839223Sgibbs 12947617Sdfr /* No pnp support */ 13047617Sdfr if (isa_get_vendorid(dev)) 13147617Sdfr return (ENXIO); 13247617Sdfr 13339223Sgibbs port_index = 0; 13439223Sgibbs max_port_index = BT_NUM_ISAPORTS - 1; 13539223Sgibbs /* 13639223Sgibbs * Bound our board search if the user has 13739223Sgibbs * specified an exact port. 13839223Sgibbs */ 13945791Speter bt_find_probe_range(isa_get_port(dev), &port_index, &max_port_index); 14039223Sgibbs 14141048Sgibbs if (port_index < 0) 14245791Speter return (ENXIO); 14341048Sgibbs 14439223Sgibbs /* Attempt to find an adapter */ 14539223Sgibbs for (;port_index <= max_port_index; port_index++) { 14644579Sgibbs struct bt_probe_info info; 14739223Sgibbs u_int ioport; 14839223Sgibbs 14941048Sgibbs ioport = bt_iop_from_bio(port_index); 15039223Sgibbs 15139223Sgibbs /* 15239223Sgibbs * Ensure this port has not already been claimed already 15340265Simp * by a PCI, EISA or ISA adapter. 15439223Sgibbs */ 15539223Sgibbs if (bt_check_probed_iop(ioport) != 0) 15639223Sgibbs continue; 15745791Speter 15845791Speter /* Initialise the softc for use during probing */ 15947399Sdfr if (bt_isa_alloc_resources(dev, ioport, 16047399Sdfr ioport + BT_NREGS -1) != 0) 16140160Simp continue; 16240160Simp 16339223Sgibbs /* We're going to attempt to probe it now, so mark it probed */ 16439223Sgibbs bt_mark_probed_bio(port_index); 16539223Sgibbs 16645791Speter if (bt_port_probe(dev, &info) != 0) { 16747717Speter if (bootverbose) 16847717Speter printf("bt_isa_probe: Probe failed at 0x%x\n", 16947717Speter ioport); 17045791Speter bt_isa_release_resources(dev); 17139223Sgibbs continue; 17239223Sgibbs } 17339223Sgibbs 17445791Speter bt_isa_release_resources(dev); 17540160Simp 17652174Sdfr bus_set_resource(dev, SYS_RES_DRQ, 0, info.drq, 1); 17752174Sdfr bus_set_resource(dev, SYS_RES_IRQ, 0, info.irq, 1); 17845791Speter 179241592Sjhb return (BUS_PROBE_DEFAULT); 18039223Sgibbs } 18139223Sgibbs 18245791Speter return (ENXIO); 18339223Sgibbs} 18439223Sgibbs 18539223Sgibbs/* 18639223Sgibbs * Attach all the sub-devices we can find 18739223Sgibbs */ 18839223Sgibbsstatic int 18945791Speterbt_isa_attach(device_t dev) 19039223Sgibbs{ 19145791Speter struct bt_softc *bt = device_get_softc(dev); 19239223Sgibbs bus_dma_filter_t *filter; 19339223Sgibbs void *filter_arg; 19439223Sgibbs bus_addr_t lowaddr; 19545796Speter int error, drq; 19639223Sgibbs 19745791Speter /* Initialise softc */ 19847399Sdfr error = bt_isa_alloc_resources(dev, 0, ~0); 19945791Speter if (error) { 20045791Speter device_printf(dev, "can't allocate resources in bt_isa_attach\n"); 20145791Speter return error; 20245791Speter } 20339223Sgibbs 20445796Speter /* Program the DMA channel for external control */ 20545796Speter if ((drq = isa_get_drq(dev)) != -1) 20645796Speter isa_dmacascade(drq); 20745796Speter 20839223Sgibbs /* Allocate our parent dmatag */ 20939223Sgibbs filter = NULL; 21039223Sgibbs filter_arg = NULL; 21139223Sgibbs lowaddr = BUS_SPACE_MAXADDR_24BIT; 21239223Sgibbs if (bt->model[0] == '4') { 21339223Sgibbs /* 21439223Sgibbs * This is a VL adapter. Typically, VL devices have access 21539223Sgibbs * to the full 32bit address space. On BT-445S adapters 21639223Sgibbs * prior to revision E, there is a hardware bug that causes 21739223Sgibbs * corruption of transfers to/from addresses in the range of 21839223Sgibbs * the BIOS modulo 16MB. The only properly functioning 21939223Sgibbs * BT-445S Host Adapters have firmware version 3.37. 22039223Sgibbs * If we encounter one of these adapters and the BIOS is 22139223Sgibbs * installed, install a filter function for our bus_dma_map 22239223Sgibbs * that will catch these accesses and bounce them to a safe 22339223Sgibbs * region of memory. 22439223Sgibbs */ 22539223Sgibbs if (bt->bios_addr != 0 22639223Sgibbs && strcmp(bt->model, "445S") == 0 22739223Sgibbs && strcmp(bt->firmware_ver, "3.37") < 0) { 22839223Sgibbs filter = btvlbouncefilter; 22939223Sgibbs filter_arg = bt; 23039223Sgibbs } else { 23139223Sgibbs lowaddr = BUS_SPACE_MAXADDR_32BIT; 23239223Sgibbs } 23339223Sgibbs } 23439223Sgibbs 23539223Sgibbs /* XXX Should be a child of the ISA or VL bus dma tag */ 236241592Sjhb if (bus_dma_tag_create( /* parent */ bus_get_dma_tag(dev), 237112782Smdodd /* alignemnt */ 1, 238112782Smdodd /* boundary */ 0, 239112782Smdodd /* lowaddr */ lowaddr, 240112782Smdodd /* highaddr */ BUS_SPACE_MAXADDR, 241112782Smdodd /* filter */ filter, 242112782Smdodd /* filterarg */ filter_arg, 243112782Smdodd /* maxsize */ BUS_SPACE_MAXSIZE_32BIT, 244112782Smdodd /* nsegments */ ~0, 245112782Smdodd /* maxsegsz */ BUS_SPACE_MAXSIZE_32BIT, 246112782Smdodd /* flags */ 0, 247241592Sjhb /* lockfunc */ NULL, 248241592Sjhb /* lockarg */ NULL, 249112782Smdodd &bt->parent_dmat) != 0) { 25045791Speter bt_isa_release_resources(dev); 25145791Speter return (ENOMEM); 25239223Sgibbs } 25339223Sgibbs 25445796Speter error = bt_init(dev); 25545796Speter if (error) { 25645791Speter bt_isa_release_resources(dev); 25745791Speter return (ENOMEM); 25839223Sgibbs } 25939223Sgibbs 26039223Sgibbs if (lowaddr != BUS_SPACE_MAXADDR_32BIT) { 26139223Sgibbs /* DMA tag for our sense buffers */ 262112782Smdodd if (bus_dma_tag_create( 263112782Smdodd /* parent */ bt->parent_dmat, 264112782Smdodd /* alignment */ 1, 265112782Smdodd /* boundary */ 0, 266112782Smdodd /* lowaddr */ BUS_SPACE_MAXADDR, 267112782Smdodd /* highaddr */ BUS_SPACE_MAXADDR, 268112782Smdodd /* filter */ NULL, 269112782Smdodd /* filterarg */ NULL, 270112782Smdodd /* maxsize */ bt->max_ccbs * 271112782Smdodd sizeof(struct scsi_sense_data), 272112782Smdodd /* nsegments */ 1, 273112782Smdodd /* maxsegsz */ BUS_SPACE_MAXSIZE_32BIT, 274112782Smdodd /* flags */ 0, 275241592Sjhb /* lockfunc */ NULL, 276241592Sjhb /* lockarg */ NULL, 277112782Smdodd &bt->sense_dmat) != 0) { 27845791Speter bt_isa_release_resources(dev); 27945791Speter return (ENOMEM); 28039223Sgibbs } 28139223Sgibbs 28239223Sgibbs bt->init_level++; 28339223Sgibbs 28439223Sgibbs /* Allocation of sense buffers */ 28539223Sgibbs if (bus_dmamem_alloc(bt->sense_dmat, 28639223Sgibbs (void **)&bt->sense_buffers, 28739223Sgibbs BUS_DMA_NOWAIT, &bt->sense_dmamap) != 0) { 28845791Speter bt_isa_release_resources(dev); 28945791Speter return (ENOMEM); 29039223Sgibbs } 29139223Sgibbs 29239223Sgibbs bt->init_level++; 29339223Sgibbs 29439223Sgibbs /* And permanently map them */ 29539223Sgibbs bus_dmamap_load(bt->sense_dmat, bt->sense_dmamap, 29639223Sgibbs bt->sense_buffers, 29739223Sgibbs bt->max_ccbs * sizeof(*bt->sense_buffers), 29839223Sgibbs btmapsensebuffers, bt, /*flags*/0); 29939223Sgibbs 30039223Sgibbs bt->init_level++; 30139223Sgibbs } 30239223Sgibbs 30345791Speter error = bt_attach(dev); 30445791Speter if (error) { 30545791Speter bt_isa_release_resources(dev); 30645791Speter return (error); 30745791Speter } 30839223Sgibbs 30945791Speter return (0); 31039223Sgibbs} 31139223Sgibbs 31239223Sgibbs#define BIOS_MAP_SIZE (16 * 1024) 31339223Sgibbs 31439223Sgibbsstatic int 31539223Sgibbsbtvlbouncefilter(void *arg, bus_addr_t addr) 31639223Sgibbs{ 31739223Sgibbs struct bt_softc *bt; 31839223Sgibbs 31939223Sgibbs bt = (struct bt_softc *)arg; 32039223Sgibbs 32139223Sgibbs addr &= BUS_SPACE_MAXADDR_24BIT; 32239223Sgibbs 32339223Sgibbs if (addr == 0 32439223Sgibbs || (addr >= bt->bios_addr 32539223Sgibbs && addr < (bt->bios_addr + BIOS_MAP_SIZE))) 32639223Sgibbs return (1); 32739223Sgibbs return (0); 32839223Sgibbs} 32939223Sgibbs 33039223Sgibbsstatic void 33139223Sgibbsbtmapsensebuffers(void *arg, bus_dma_segment_t *segs, int nseg, int error) 33239223Sgibbs{ 33339223Sgibbs struct bt_softc* bt; 33439223Sgibbs 33539223Sgibbs bt = (struct bt_softc*)arg; 33639223Sgibbs bt->sense_buffers_physbase = segs->ds_addr; 33739223Sgibbs} 33845791Speter 33945791Speterstatic device_method_t bt_isa_methods[] = { 34045791Speter /* Device interface */ 34145791Speter DEVMETHOD(device_probe, bt_isa_probe), 34245791Speter DEVMETHOD(device_attach, bt_isa_attach), 34345791Speter 34445791Speter { 0, 0 } 34545791Speter}; 34645791Speter 34745791Speterstatic driver_t bt_isa_driver = { 34845791Speter "bt", 34945791Speter bt_isa_methods, 35045791Speter sizeof(struct bt_softc), 35145791Speter}; 35245791Speter 35345791Speterstatic devclass_t bt_devclass; 35445791Speter 35545791SpeterDRIVER_MODULE(bt, isa, bt_isa_driver, bt_devclass, 0, 0); 356165102SmjacobMODULE_DEPEND(bt, isa, 1, 1, 1); 357