1139749Simp/*- 297883Sgibbs * FreeBSD, PCI product support functions 397883Sgibbs * 497883Sgibbs * Copyright (c) 1995-2001 Justin T. Gibbs 597883Sgibbs * All rights reserved. 697883Sgibbs * 797883Sgibbs * Redistribution and use in source and binary forms, with or without 897883Sgibbs * modification, are permitted provided that the following conditions 997883Sgibbs * are met: 1097883Sgibbs * 1. Redistributions of source code must retain the above copyright 1197883Sgibbs * notice, this list of conditions, and the following disclaimer, 1297883Sgibbs * without modification, immediately at the beginning of the file. 1397883Sgibbs * 2. The name of the author may not be used to endorse or promote products 1497883Sgibbs * derived from this software without specific prior written permission. 1597883Sgibbs * 1697883Sgibbs * Alternatively, this software may be distributed under the terms of the 1797883Sgibbs * GNU Public License ("GPL"). 1897883Sgibbs * 1997883Sgibbs * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 2097883Sgibbs * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2197883Sgibbs * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2297883Sgibbs * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 2397883Sgibbs * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2497883Sgibbs * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2597883Sgibbs * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2697883Sgibbs * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2797883Sgibbs * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2897883Sgibbs * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2997883Sgibbs * SUCH DAMAGE. 3097883Sgibbs * 31123579Sgibbs * $Id: //depot/aic7xxx/freebsd/dev/aic7xxx/ahd_pci.c#17 $ 3297883Sgibbs */ 3397883Sgibbs 34119418Sobrien#include <sys/cdefs.h> 35119418Sobrien__FBSDID("$FreeBSD$"); 36119418Sobrien 3797883Sgibbs#include <dev/aic7xxx/aic79xx_osm.h> 3897883Sgibbs 3997883Sgibbsstatic int ahd_pci_probe(device_t dev); 4097883Sgibbsstatic int ahd_pci_attach(device_t dev); 4197883Sgibbs 4297883Sgibbsstatic device_method_t ahd_pci_device_methods[] = { 4397883Sgibbs /* Device interface */ 4497883Sgibbs DEVMETHOD(device_probe, ahd_pci_probe), 4597883Sgibbs DEVMETHOD(device_attach, ahd_pci_attach), 4697883Sgibbs DEVMETHOD(device_detach, ahd_detach), 4797883Sgibbs { 0, 0 } 4897883Sgibbs}; 4997883Sgibbs 5097883Sgibbsstatic driver_t ahd_pci_driver = { 5197883Sgibbs "ahd", 5297883Sgibbs ahd_pci_device_methods, 5397883Sgibbs sizeof(struct ahd_softc) 5497883Sgibbs}; 5597883Sgibbs 5697883Sgibbsstatic devclass_t ahd_devclass; 5797883Sgibbs 5897883SgibbsDRIVER_MODULE(ahd, pci, ahd_pci_driver, ahd_devclass, 0, 0); 5997883SgibbsMODULE_DEPEND(ahd_pci, ahd, 1, 1, 1); 6097883SgibbsMODULE_VERSION(ahd_pci, 1); 6197883Sgibbs 6297883Sgibbsstatic int 6397883Sgibbsahd_pci_probe(device_t dev) 6497883Sgibbs{ 6597883Sgibbs struct ahd_pci_identity *entry; 6697883Sgibbs 6797883Sgibbs entry = ahd_find_pci_device(dev); 6897883Sgibbs if (entry != NULL) { 6997883Sgibbs device_set_desc(dev, entry->name); 70143164Simp return (BUS_PROBE_DEFAULT); 7197883Sgibbs } 7297883Sgibbs return (ENXIO); 7397883Sgibbs} 7497883Sgibbs 7597883Sgibbsstatic int 7697883Sgibbsahd_pci_attach(device_t dev) 7797883Sgibbs{ 7897883Sgibbs struct ahd_pci_identity *entry; 7997883Sgibbs struct ahd_softc *ahd; 8097883Sgibbs char *name; 8197883Sgibbs int error; 8297883Sgibbs 8397883Sgibbs entry = ahd_find_pci_device(dev); 8497883Sgibbs if (entry == NULL) 8597883Sgibbs return (ENXIO); 8697883Sgibbs 8797883Sgibbs /* 8897883Sgibbs * Allocate a softc for this card and 8997883Sgibbs * set it up for attachment by our 9097883Sgibbs * common detect routine. 9197883Sgibbs */ 9297883Sgibbs name = malloc(strlen(device_get_nameunit(dev)) + 1, M_DEVBUF, M_NOWAIT); 9397883Sgibbs if (name == NULL) 9497883Sgibbs return (ENOMEM); 9597883Sgibbs strcpy(name, device_get_nameunit(dev)); 9697883Sgibbs ahd = ahd_alloc(dev, name); 9797883Sgibbs if (ahd == NULL) 9897883Sgibbs return (ENOMEM); 9997883Sgibbs 10097883Sgibbs ahd_set_unit(ahd, device_get_unit(dev)); 10197883Sgibbs 10297883Sgibbs /* 10397883Sgibbs * Should we bother disabling 39Bit addressing 10497883Sgibbs * based on installed memory? 10597883Sgibbs */ 10697883Sgibbs if (sizeof(bus_addr_t) > 4) 10797883Sgibbs ahd->flags |= AHD_39BIT_ADDRESSING; 10897883Sgibbs 10997883Sgibbs /* Allocate a dmatag for our SCB DMA maps */ 110161928Sjmg error = aic_dma_tag_create(ahd, /*parent*/bus_get_dma_tag(dev), 111161928Sjmg /*alignment*/1, /*boundary*/0, 11297883Sgibbs (ahd->flags & AHD_39BIT_ADDRESSING) 113123579Sgibbs ? 0x7FFFFFFFFF 11497883Sgibbs : BUS_SPACE_MAXADDR_32BIT, 11597883Sgibbs /*highaddr*/BUS_SPACE_MAXADDR, 11697883Sgibbs /*filter*/NULL, /*filterarg*/NULL, 117108479Sscottl /*maxsize*/BUS_SPACE_MAXSIZE_32BIT, 118108479Sscottl /*nsegments*/AHD_NSEG, 11997883Sgibbs /*maxsegsz*/AHD_MAXTRANSFER_SIZE, 120114618Sgibbs /*flags*/0, 12197883Sgibbs &ahd->parent_dmat); 12297883Sgibbs 12397883Sgibbs if (error != 0) { 12497883Sgibbs printf("ahd_pci_attach: Could not allocate DMA tag " 12597883Sgibbs "- error %d\n", error); 12697883Sgibbs ahd_free(ahd); 12797883Sgibbs return (ENOMEM); 12897883Sgibbs } 12997883Sgibbs ahd->dev_softc = dev; 13097883Sgibbs error = ahd_pci_config(ahd, entry); 13197883Sgibbs if (error != 0) { 13297883Sgibbs ahd_free(ahd); 13397883Sgibbs return (error); 13497883Sgibbs } 13597883Sgibbs 136199260Sattilio ahd_sysctl(ahd); 13797883Sgibbs ahd_attach(ahd); 13897883Sgibbs return (0); 13997883Sgibbs} 14097883Sgibbs 14197883Sgibbsint 14297883Sgibbsahd_pci_map_registers(struct ahd_softc *ahd) 14397883Sgibbs{ 14497883Sgibbs struct resource *regs; 14597883Sgibbs struct resource *regs2; 14697883Sgibbs int regs_type; 14797883Sgibbs int regs_id; 14897883Sgibbs int regs_id2; 149107623Sscottl int allow_memio; 15097883Sgibbs 15197883Sgibbs regs = NULL; 15297883Sgibbs regs2 = NULL; 15397883Sgibbs regs_type = 0; 15497883Sgibbs regs_id = 0; 155107623Sscottl 156107623Sscottl /* Retrieve the per-device 'allow_memio' hint */ 157107623Sscottl if (resource_int_value(device_get_name(ahd->dev_softc), 158107623Sscottl device_get_unit(ahd->dev_softc), 159107623Sscottl "allow_memio", &allow_memio) != 0) { 160107623Sscottl if (bootverbose) 161107623Sscottl device_printf(ahd->dev_softc, 162107623Sscottl "Defaulting to MEMIO on\n"); 163150449Sgibbs allow_memio = 1; 164107623Sscottl } 165107623Sscottl 166254306Sscottl if ((ahd->bugs & AHD_PCIX_MMAPIO_BUG) == 0 167107623Sscottl && allow_memio != 0) { 16897883Sgibbs 16997883Sgibbs regs_type = SYS_RES_MEMORY; 17097883Sgibbs regs_id = AHD_PCI_MEMADDR; 171127135Snjl regs = bus_alloc_resource_any(ahd->dev_softc, regs_type, 172127135Snjl ®s_id, RF_ACTIVE); 17397883Sgibbs if (regs != NULL) { 17497883Sgibbs int error; 17597883Sgibbs 17697883Sgibbs ahd->tags[0] = rman_get_bustag(regs); 17797883Sgibbs ahd->bshs[0] = rman_get_bushandle(regs); 17897883Sgibbs ahd->tags[1] = ahd->tags[0]; 17997883Sgibbs error = bus_space_subregion(ahd->tags[0], ahd->bshs[0], 18097883Sgibbs /*offset*/0x100, 18197883Sgibbs /*size*/0x100, 18297883Sgibbs &ahd->bshs[1]); 18397883Sgibbs /* 18497883Sgibbs * Do a quick test to see if memory mapped 18597883Sgibbs * I/O is functioning correctly. 18697883Sgibbs */ 187107438Sscottl if (error != 0 188107438Sscottl || ahd_pci_test_register_access(ahd) != 0) { 18997883Sgibbs device_printf(ahd->dev_softc, 19097883Sgibbs "PCI Device %d:%d:%d failed memory " 19197883Sgibbs "mapped test. Using PIO.\n", 192123579Sgibbs aic_get_pci_bus(ahd->dev_softc), 193123579Sgibbs aic_get_pci_slot(ahd->dev_softc), 194123579Sgibbs aic_get_pci_function(ahd->dev_softc)); 19597883Sgibbs bus_release_resource(ahd->dev_softc, regs_type, 19697883Sgibbs regs_id, regs); 19797883Sgibbs regs = NULL; 198199260Sattilio AHD_CORRECTABLE_ERROR(ahd); 19997883Sgibbs } 20097883Sgibbs } 20197883Sgibbs } 202254306Sscottl if (regs == NULL) { 20397883Sgibbs regs_type = SYS_RES_IOPORT; 20497883Sgibbs regs_id = AHD_PCI_IOADDR0; 205127135Snjl regs = bus_alloc_resource_any(ahd->dev_softc, regs_type, 206127135Snjl ®s_id, RF_ACTIVE); 20797883Sgibbs if (regs == NULL) { 20897883Sgibbs device_printf(ahd->dev_softc, 20997883Sgibbs "can't allocate register resources\n"); 210199260Sattilio AHD_UNCORRECTABLE_ERROR(ahd); 21197883Sgibbs return (ENOMEM); 21297883Sgibbs } 21397883Sgibbs ahd->tags[0] = rman_get_bustag(regs); 21497883Sgibbs ahd->bshs[0] = rman_get_bushandle(regs); 21597883Sgibbs 21697883Sgibbs /* And now the second BAR */ 21797883Sgibbs regs_id2 = AHD_PCI_IOADDR1; 218127135Snjl regs2 = bus_alloc_resource_any(ahd->dev_softc, regs_type, 219127135Snjl ®s_id2, RF_ACTIVE); 22097883Sgibbs if (regs2 == NULL) { 22197883Sgibbs device_printf(ahd->dev_softc, 22297883Sgibbs "can't allocate register resources\n"); 223199260Sattilio AHD_UNCORRECTABLE_ERROR(ahd); 22497883Sgibbs return (ENOMEM); 22597883Sgibbs } 22697883Sgibbs ahd->tags[1] = rman_get_bustag(regs2); 22797883Sgibbs ahd->bshs[1] = rman_get_bushandle(regs2); 22897883Sgibbs ahd->platform_data->regs_res_type[1] = regs_type; 22997883Sgibbs ahd->platform_data->regs_res_id[1] = regs_id2; 23097883Sgibbs ahd->platform_data->regs[1] = regs2; 23197883Sgibbs } 23297883Sgibbs ahd->platform_data->regs_res_type[0] = regs_type; 23397883Sgibbs ahd->platform_data->regs_res_id[0] = regs_id; 23497883Sgibbs ahd->platform_data->regs[0] = regs; 23597883Sgibbs return (0); 23697883Sgibbs} 23797883Sgibbs 23897883Sgibbsint 23997883Sgibbsahd_pci_map_int(struct ahd_softc *ahd) 24097883Sgibbs{ 24197883Sgibbs int zero; 24297883Sgibbs 24397883Sgibbs zero = 0; 24497883Sgibbs ahd->platform_data->irq = 245127135Snjl bus_alloc_resource_any(ahd->dev_softc, SYS_RES_IRQ, &zero, 246127135Snjl RF_ACTIVE | RF_SHAREABLE); 24797883Sgibbs if (ahd->platform_data->irq == NULL) 24897883Sgibbs return (ENOMEM); 24997883Sgibbs ahd->platform_data->irq_res_type = SYS_RES_IRQ; 25097883Sgibbs return (ahd_map_int(ahd)); 25197883Sgibbs} 252