1d3f39a74SJustin T. Gibbs /* 2d3f39a74SJustin T. Gibbs * FreeBSD, VLB/ISA product support functions 3d3f39a74SJustin T. Gibbs * 4d3f39a74SJustin T. Gibbs * Copyright (c) 2004 Justin T. Gibbs. 5d3f39a74SJustin T. Gibbs * All rights reserved. 6d3f39a74SJustin T. Gibbs * 7d3f39a74SJustin T. Gibbs * Redistribution and use in source and binary forms, with or without 8d3f39a74SJustin T. Gibbs * modification, are permitted provided that the following conditions 9d3f39a74SJustin T. Gibbs * are met: 10d3f39a74SJustin T. Gibbs * 1. Redistributions of source code must retain the above copyright 11d3f39a74SJustin T. Gibbs * notice, this list of conditions, and the following disclaimer, 12d3f39a74SJustin T. Gibbs * without modification. 13d3f39a74SJustin T. Gibbs * 2. Redistributions in binary form must reproduce at minimum a disclaimer 14d3f39a74SJustin T. Gibbs * substantially similar to the "NO WARRANTY" disclaimer below 15d3f39a74SJustin T. Gibbs * ("Disclaimer") and any redistribution must be conditioned upon 16d3f39a74SJustin T. Gibbs * including a substantially similar Disclaimer requirement for further 17d3f39a74SJustin T. Gibbs * binary redistribution. 18d3f39a74SJustin T. Gibbs * 3. Neither the names of the above-listed copyright holders nor the names 19d3f39a74SJustin T. Gibbs * of any contributors may be used to endorse or promote products derived 20d3f39a74SJustin T. Gibbs * from this software without specific prior written permission. 21d3f39a74SJustin T. Gibbs * 22d3f39a74SJustin T. Gibbs * NO WARRANTY 23d3f39a74SJustin T. Gibbs * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 24d3f39a74SJustin T. Gibbs * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 25d3f39a74SJustin T. Gibbs * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 26d3f39a74SJustin T. Gibbs * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 27d3f39a74SJustin T. Gibbs * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28d3f39a74SJustin T. Gibbs * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29d3f39a74SJustin T. Gibbs * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30d3f39a74SJustin T. Gibbs * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 31d3f39a74SJustin T. Gibbs * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 32d3f39a74SJustin T. Gibbs * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 33d3f39a74SJustin T. Gibbs * POSSIBILITY OF SUCH DAMAGES. 34d3f39a74SJustin T. Gibbs * 35d3f39a74SJustin T. Gibbs * $Id$ 36d3f39a74SJustin T. Gibbs */ 37d3f39a74SJustin T. Gibbs 38d3f39a74SJustin T. Gibbs #include <sys/cdefs.h> 39d3f39a74SJustin T. Gibbs __FBSDID("$FreeBSD$"); 40d3f39a74SJustin T. Gibbs 41d3f39a74SJustin T. Gibbs #include <dev/aic7xxx/aic7xxx_osm.h> 42d3f39a74SJustin T. Gibbs 43d3f39a74SJustin T. Gibbs #include <sys/limits.h> /* For CHAR_BIT*/ 44d3f39a74SJustin T. Gibbs #include <isa/isavar.h> /* For ISA attach glue */ 45d3f39a74SJustin T. Gibbs 46d3f39a74SJustin T. Gibbs 47d3f39a74SJustin T. Gibbs static struct aic7770_identity *ahc_isa_find_device(bus_space_tag_t tag, 48d3f39a74SJustin T. Gibbs bus_space_handle_t bsh); 49d3f39a74SJustin T. Gibbs static void ahc_isa_identify(driver_t *driver, 50d3f39a74SJustin T. Gibbs device_t parent); 51d3f39a74SJustin T. Gibbs static int ahc_isa_probe(device_t dev); 52d3f39a74SJustin T. Gibbs static int ahc_isa_attach(device_t dev); 53d3f39a74SJustin T. Gibbs 54d3f39a74SJustin T. Gibbs /* 55d3f39a74SJustin T. Gibbs * Perform an EISA probe of the address with the addition 56d3f39a74SJustin T. Gibbs * of a "priming" step. The 284X requires priming (a write 57d3f39a74SJustin T. Gibbs * to offset 0x80, the first EISA ID register) to ensure it 58d3f39a74SJustin T. Gibbs * is not mistaken as an EISA card. Once we have the ID, 59d3f39a74SJustin T. Gibbs * lookup the controller in the aic7770 table of supported 60d3f39a74SJustin T. Gibbs * devices. 61d3f39a74SJustin T. Gibbs */ 62d3f39a74SJustin T. Gibbs static struct aic7770_identity * 63d3f39a74SJustin T. Gibbs ahc_isa_find_device(bus_space_tag_t tag, bus_space_handle_t bsh) { 64eaa73a36SJustin T. Gibbs uint32_t id; 65d3f39a74SJustin T. Gibbs u_int id_size; 66d3f39a74SJustin T. Gibbs int i; 67d3f39a74SJustin T. Gibbs 68d3f39a74SJustin T. Gibbs id = 0; 69d3f39a74SJustin T. Gibbs id_size = sizeof(id); 70d3f39a74SJustin T. Gibbs for (i = 0; i < id_size; i++) { 71d3f39a74SJustin T. Gibbs bus_space_write_1(tag, bsh, 0x80, 0x80 + i); 72d3f39a74SJustin T. Gibbs id |= bus_space_read_1(tag, bsh, 0x80 + i) 73d3f39a74SJustin T. Gibbs << ((id_size - i - 1) * CHAR_BIT); 74d3f39a74SJustin T. Gibbs } 75d3f39a74SJustin T. Gibbs 76d3f39a74SJustin T. Gibbs return (aic7770_find_device(id)); 77d3f39a74SJustin T. Gibbs } 78d3f39a74SJustin T. Gibbs 79d3f39a74SJustin T. Gibbs static void 80d3f39a74SJustin T. Gibbs ahc_isa_identify(driver_t *driver, device_t parent) 81d3f39a74SJustin T. Gibbs { 82d3f39a74SJustin T. Gibbs int slot; 83d3f39a74SJustin T. Gibbs int max_slot; 84d3f39a74SJustin T. Gibbs 85d3f39a74SJustin T. Gibbs max_slot = 14; 86d3f39a74SJustin T. Gibbs for (slot = 0; slot <= max_slot; slot++) { 87d3f39a74SJustin T. Gibbs struct aic7770_identity *entry; 88d3f39a74SJustin T. Gibbs bus_space_tag_t tag; 89d3f39a74SJustin T. Gibbs bus_space_handle_t bsh; 90d3f39a74SJustin T. Gibbs struct resource *regs; 91d3f39a74SJustin T. Gibbs uint32_t iobase; 92d3f39a74SJustin T. Gibbs int rid; 93d3f39a74SJustin T. Gibbs 94d3f39a74SJustin T. Gibbs rid = 0; 95eaa73a36SJustin T. Gibbs iobase = (slot * AHC_EISA_SLOT_SIZE) + AHC_EISA_SLOT_OFFSET; 96d3f39a74SJustin T. Gibbs regs = bus_alloc_resource(parent, SYS_RES_IOPORT, &rid, 97d3f39a74SJustin T. Gibbs iobase, iobase, AHC_EISA_IOSIZE, 98d3f39a74SJustin T. Gibbs RF_ACTIVE); 99d3f39a74SJustin T. Gibbs if (regs == NULL) { 100d3f39a74SJustin T. Gibbs if (bootverbose) 101d3f39a74SJustin T. Gibbs printf("ahc_isa_probe %d: ioport 0x%x " 102d3f39a74SJustin T. Gibbs "alloc failed\n", slot, iobase); 103d3f39a74SJustin T. Gibbs continue; 104d3f39a74SJustin T. Gibbs } 105d3f39a74SJustin T. Gibbs 106d3f39a74SJustin T. Gibbs tag = rman_get_bustag(regs); 107d3f39a74SJustin T. Gibbs bsh = rman_get_bushandle(regs); 108d3f39a74SJustin T. Gibbs 109d3f39a74SJustin T. Gibbs entry = ahc_isa_find_device(tag, bsh); 110d3f39a74SJustin T. Gibbs if (entry != NULL) { 111d3f39a74SJustin T. Gibbs device_t child; 112d3f39a74SJustin T. Gibbs 113d3f39a74SJustin T. Gibbs child = BUS_ADD_CHILD(parent, ISA_ORDER_SPECULATIVE, 114d3f39a74SJustin T. Gibbs "ahc", -1); 115d3f39a74SJustin T. Gibbs if (child != NULL) { 116d3f39a74SJustin T. Gibbs device_set_driver(child, driver); 117d3f39a74SJustin T. Gibbs bus_set_resource(child, SYS_RES_IOPORT, 118d3f39a74SJustin T. Gibbs 0, iobase, AHC_EISA_IOSIZE); 119d3f39a74SJustin T. Gibbs } 120d3f39a74SJustin T. Gibbs } 121d3f39a74SJustin T. Gibbs bus_release_resource(parent, SYS_RES_IOPORT, rid, regs); 122d3f39a74SJustin T. Gibbs } 123d3f39a74SJustin T. Gibbs } 124d3f39a74SJustin T. Gibbs 125d3f39a74SJustin T. Gibbs static int 126d3f39a74SJustin T. Gibbs ahc_isa_probe(device_t dev) 127d3f39a74SJustin T. Gibbs { 128d3f39a74SJustin T. Gibbs struct aic7770_identity *entry; 129d3f39a74SJustin T. Gibbs bus_space_tag_t tag; 130d3f39a74SJustin T. Gibbs bus_space_handle_t bsh; 131d3f39a74SJustin T. Gibbs struct resource *regs; 132d3f39a74SJustin T. Gibbs struct resource *irq; 133d3f39a74SJustin T. Gibbs uint32_t iobase; 134d3f39a74SJustin T. Gibbs u_int intdef; 135d3f39a74SJustin T. Gibbs u_int hcntrl; 136d3f39a74SJustin T. Gibbs int irq_num; 137d3f39a74SJustin T. Gibbs int error; 138d3f39a74SJustin T. Gibbs int zero; 139d3f39a74SJustin T. Gibbs 140a1a3da9bSJustin T. Gibbs error = ENXIO; 141d3f39a74SJustin T. Gibbs zero = 0; 142d3f39a74SJustin T. Gibbs regs = NULL; 143d3f39a74SJustin T. Gibbs irq = NULL; 144d3f39a74SJustin T. Gibbs 145a1a3da9bSJustin T. Gibbs /* Skip probes for ISA PnP devices */ 146a1a3da9bSJustin T. Gibbs if (isa_get_logicalid(dev) != 0) 147a1a3da9bSJustin T. Gibbs return (error); 148a1a3da9bSJustin T. Gibbs 149d3f39a74SJustin T. Gibbs regs = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &zero, RF_ACTIVE); 150d3f39a74SJustin T. Gibbs if (regs == NULL) { 15108bbe9ffSJustin T. Gibbs device_printf(dev, "No resources allocated.\n"); 152d3f39a74SJustin T. Gibbs return (ENOMEM); 153d3f39a74SJustin T. Gibbs } 154d3f39a74SJustin T. Gibbs 155badcc39bSJustin T. Gibbs iobase = rman_get_start(regs); 156d3f39a74SJustin T. Gibbs tag = rman_get_bustag(regs); 157d3f39a74SJustin T. Gibbs bsh = rman_get_bushandle(regs); 158d3f39a74SJustin T. Gibbs 159d3f39a74SJustin T. Gibbs entry = ahc_isa_find_device(tag, bsh); 160d3f39a74SJustin T. Gibbs if (entry == NULL) 161d3f39a74SJustin T. Gibbs goto cleanup; 162d3f39a74SJustin T. Gibbs 163d3f39a74SJustin T. Gibbs /* Pause the card preseving the IRQ type */ 164d3f39a74SJustin T. Gibbs hcntrl = bus_space_read_1(tag, bsh, HCNTRL) & IRQMS; 165d3f39a74SJustin T. Gibbs bus_space_write_1(tag, bsh, HCNTRL, hcntrl | PAUSE); 166d3f39a74SJustin T. Gibbs while ((bus_space_read_1(tag, bsh, HCNTRL) & PAUSE) == 0) 167d3f39a74SJustin T. Gibbs ; 168d3f39a74SJustin T. Gibbs 169d3f39a74SJustin T. Gibbs /* Make sure we have a valid interrupt vector */ 170d3f39a74SJustin T. Gibbs intdef = bus_space_read_1(tag, bsh, INTDEF); 171d3f39a74SJustin T. Gibbs irq_num = intdef & VECTOR; 172d3f39a74SJustin T. Gibbs switch (irq_num) { 173d3f39a74SJustin T. Gibbs case 9: 174d3f39a74SJustin T. Gibbs case 10: 175d3f39a74SJustin T. Gibbs case 11: 176d3f39a74SJustin T. Gibbs case 12: 177d3f39a74SJustin T. Gibbs case 14: 178d3f39a74SJustin T. Gibbs case 15: 179d3f39a74SJustin T. Gibbs break; 180d3f39a74SJustin T. Gibbs default: 181d3f39a74SJustin T. Gibbs device_printf(dev, "@0x%x: illegal irq setting %d\n", 182d3f39a74SJustin T. Gibbs iobase, irq_num); 183d3f39a74SJustin T. Gibbs goto cleanup; 184d3f39a74SJustin T. Gibbs } 185d3f39a74SJustin T. Gibbs 186d3f39a74SJustin T. Gibbs if (bus_set_resource(dev, SYS_RES_IRQ, zero, irq_num, 1) != 0) 187d3f39a74SJustin T. Gibbs goto cleanup; 188d3f39a74SJustin T. Gibbs 189d3f39a74SJustin T. Gibbs /* 190d3f39a74SJustin T. Gibbs * The 284X only supports edge triggered interrupts, 191d3f39a74SJustin T. Gibbs * so do not claim RF_SHAREABLE. 192d3f39a74SJustin T. Gibbs */ 193d3f39a74SJustin T. Gibbs irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &zero, 194d3f39a74SJustin T. Gibbs 0 /*!(RF_ACTIVE|RF_SHAREABLE)*/); 195d3f39a74SJustin T. Gibbs if (irq != NULL) { 196d3f39a74SJustin T. Gibbs error = 0; 197d3f39a74SJustin T. Gibbs device_set_desc(dev, entry->name); 198d3f39a74SJustin T. Gibbs } else 199d3f39a74SJustin T. Gibbs device_printf(dev, "@0x%x: irq %d allocation failed\n", 200d3f39a74SJustin T. Gibbs iobase, irq_num); 201d3f39a74SJustin T. Gibbs 202d3f39a74SJustin T. Gibbs cleanup: 203d3f39a74SJustin T. Gibbs if (regs != NULL) { 204d3f39a74SJustin T. Gibbs bus_release_resource(dev, SYS_RES_IOPORT, zero, regs); 205d3f39a74SJustin T. Gibbs regs = NULL; 206d3f39a74SJustin T. Gibbs } 207d3f39a74SJustin T. Gibbs 208d3f39a74SJustin T. Gibbs if (irq != NULL) { 209d3f39a74SJustin T. Gibbs bus_release_resource(dev, SYS_RES_IRQ, zero, irq); 210d3f39a74SJustin T. Gibbs irq = NULL; 211d3f39a74SJustin T. Gibbs } 212d3f39a74SJustin T. Gibbs 213d3f39a74SJustin T. Gibbs return (error); 214d3f39a74SJustin T. Gibbs } 215d3f39a74SJustin T. Gibbs 216d3f39a74SJustin T. Gibbs static int 217d3f39a74SJustin T. Gibbs ahc_isa_attach(device_t dev) 218d3f39a74SJustin T. Gibbs { 219d3f39a74SJustin T. Gibbs struct aic7770_identity *entry; 220d3f39a74SJustin T. Gibbs bus_space_tag_t tag; 221d3f39a74SJustin T. Gibbs bus_space_handle_t bsh; 222d3f39a74SJustin T. Gibbs struct resource *regs; 223d3f39a74SJustin T. Gibbs struct ahc_softc *ahc; 224d3f39a74SJustin T. Gibbs char *name; 225d3f39a74SJustin T. Gibbs int zero; 226d3f39a74SJustin T. Gibbs int error; 227d3f39a74SJustin T. Gibbs 228d3f39a74SJustin T. Gibbs zero = 0; 229d3f39a74SJustin T. Gibbs regs = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &zero, RF_ACTIVE); 230d3f39a74SJustin T. Gibbs if (regs == NULL) 231d3f39a74SJustin T. Gibbs return (ENOMEM); 232d3f39a74SJustin T. Gibbs 233d3f39a74SJustin T. Gibbs tag = rman_get_bustag(regs); 234d3f39a74SJustin T. Gibbs bsh = rman_get_bushandle(regs); 235d3f39a74SJustin T. Gibbs entry = ahc_isa_find_device(tag, bsh); 236d3f39a74SJustin T. Gibbs bus_release_resource(dev, SYS_RES_IOPORT, zero, regs); 237d3f39a74SJustin T. Gibbs if (entry == NULL) 238d3f39a74SJustin T. Gibbs return (ENODEV); 239d3f39a74SJustin T. Gibbs 240d3f39a74SJustin T. Gibbs /* 241d3f39a74SJustin T. Gibbs * Allocate a softc for this card and 242d3f39a74SJustin T. Gibbs * set it up for attachment by our 243d3f39a74SJustin T. Gibbs * common detect routine. 244d3f39a74SJustin T. Gibbs */ 245d3f39a74SJustin T. Gibbs name = malloc(strlen(device_get_nameunit(dev)) + 1, M_DEVBUF, M_NOWAIT); 246d3f39a74SJustin T. Gibbs if (name == NULL) 247d3f39a74SJustin T. Gibbs return (ENOMEM); 248d3f39a74SJustin T. Gibbs strcpy(name, device_get_nameunit(dev)); 249d3f39a74SJustin T. Gibbs ahc = ahc_alloc(dev, name); 250d3f39a74SJustin T. Gibbs if (ahc == NULL) 251d3f39a74SJustin T. Gibbs return (ENOMEM); 252d3f39a74SJustin T. Gibbs 253d3f39a74SJustin T. Gibbs ahc_set_unit(ahc, device_get_unit(dev)); 254d3f39a74SJustin T. Gibbs 255d3f39a74SJustin T. Gibbs /* Allocate a dmatag for our SCB DMA maps */ 256d3f39a74SJustin T. Gibbs /* XXX Should be a child of the VLB/ISA bus dma tag */ 257d3f39a74SJustin T. Gibbs error = aic_dma_tag_create(ahc, /*parent*/NULL, /*alignment*/1, 258d3f39a74SJustin T. Gibbs /*boundary*/0, 259d3f39a74SJustin T. Gibbs /*lowaddr*/BUS_SPACE_MAXADDR_32BIT, 260d3f39a74SJustin T. Gibbs /*highaddr*/BUS_SPACE_MAXADDR, 261d3f39a74SJustin T. Gibbs /*filter*/NULL, /*filterarg*/NULL, 262d3f39a74SJustin T. Gibbs /*maxsize*/BUS_SPACE_MAXSIZE_32BIT, 263d3f39a74SJustin T. Gibbs /*nsegments*/AHC_NSEG, 264d3f39a74SJustin T. Gibbs /*maxsegsz*/AHC_MAXTRANSFER_SIZE, 265d3f39a74SJustin T. Gibbs /*flags*/0, 266d3f39a74SJustin T. Gibbs &ahc->parent_dmat); 267d3f39a74SJustin T. Gibbs 268d3f39a74SJustin T. Gibbs if (error != 0) { 269d3f39a74SJustin T. Gibbs printf("ahc_isa_attach: Could not allocate DMA tag " 270d3f39a74SJustin T. Gibbs "- error %d\n", error); 271d3f39a74SJustin T. Gibbs ahc_free(ahc); 272d3f39a74SJustin T. Gibbs return (ENOMEM); 273d3f39a74SJustin T. Gibbs } 274d3f39a74SJustin T. Gibbs ahc->dev_softc = dev; 275d3f39a74SJustin T. Gibbs error = aic7770_config(ahc, entry, /*unused ioport arg*/0); 276d3f39a74SJustin T. Gibbs if (error != 0) { 277d3f39a74SJustin T. Gibbs ahc_free(ahc); 278d3f39a74SJustin T. Gibbs return (error); 279d3f39a74SJustin T. Gibbs } 280d3f39a74SJustin T. Gibbs 281d3f39a74SJustin T. Gibbs ahc_attach(ahc); 282d3f39a74SJustin T. Gibbs return (0); 283d3f39a74SJustin T. Gibbs } 284d3f39a74SJustin T. Gibbs 285d3f39a74SJustin T. Gibbs static device_method_t ahc_isa_device_methods[] = { 286d3f39a74SJustin T. Gibbs /* Device interface */ 287d3f39a74SJustin T. Gibbs DEVMETHOD(device_identify, ahc_isa_identify), 288d3f39a74SJustin T. Gibbs DEVMETHOD(device_probe, ahc_isa_probe), 289d3f39a74SJustin T. Gibbs DEVMETHOD(device_attach, ahc_isa_attach), 290d3f39a74SJustin T. Gibbs DEVMETHOD(device_detach, ahc_detach), 291d3f39a74SJustin T. Gibbs { 0, 0 } 292d3f39a74SJustin T. Gibbs }; 293d3f39a74SJustin T. Gibbs 294d3f39a74SJustin T. Gibbs static driver_t ahc_isa_driver = { 295d3f39a74SJustin T. Gibbs "ahc", 296d3f39a74SJustin T. Gibbs ahc_isa_device_methods, 297d3f39a74SJustin T. Gibbs sizeof(struct ahc_softc) 298d3f39a74SJustin T. Gibbs }; 299d3f39a74SJustin T. Gibbs 300d3f39a74SJustin T. Gibbs DRIVER_MODULE(ahc_isa, isa, ahc_isa_driver, ahc_devclass, 0, 0); 301d3f39a74SJustin T. Gibbs MODULE_DEPEND(ahc_isa, ahc, 1, 1, 1); 302d3f39a74SJustin T. Gibbs MODULE_VERSION(ahc_isa, 1); 303