ichsmb_pci.c revision 173953
1193323Sed/*- 2193323Sed * ichsmb_pci.c 3193323Sed * 4193323Sed * Author: Archie Cobbs <archie@freebsd.org> 5193323Sed * Copyright (c) 2000 Whistle Communications, Inc. 6193323Sed * All rights reserved. 7193323Sed * Author: Archie Cobbs <archie@freebsd.org> 8193323Sed * 9193323Sed * Subject to the following obligations and disclaimer of warranty, use and 10193323Sed * redistribution of this software, in source or object code forms, with or 11193323Sed * without modifications are expressly permitted by Whistle Communications; 12193323Sed * provided, however, that: 13193323Sed * 1. Any and all reproductions of the source or object code must include the 14193323Sed * copyright notice above and the following disclaimer of warranties; and 15193323Sed * 2. No rights are granted, in any manner or form, to use Whistle 16193323Sed * Communications, Inc. trademarks, including the mark "WHISTLE 17193323Sed * COMMUNICATIONS" on advertising, endorsements, or otherwise except as 18193323Sed * such appears in the above copyright notice or in the software. 19193323Sed * 20193323Sed * THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND 21193323Sed * TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO 22193323Sed * REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE, 23201360Srdivacky * INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF 24193323Sed * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT. 25193323Sed * WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY 26195340Sed * REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS 27198090Srdivacky * SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE. 28193323Sed * IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES 29193323Sed * RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING 30193323Sed * WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, 31193323Sed * PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR 32193323Sed * SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY 33193323Sed * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 34193323Sed * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 35200581Srdivacky * THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY 36200581Srdivacky * OF SUCH DAMAGE. 37193323Sed */ 38198892Srdivacky 39193323Sed#include <sys/cdefs.h> 40200581Srdivacky__FBSDID("$FreeBSD: head/sys/dev/ichsmb/ichsmb_pci.c 173953 2007-11-26 19:54:54Z remko $"); 41193323Sed 42193323Sed/* 43193323Sed * Support for the SMBus controller logical device which is part of the 44198090Srdivacky * Intel 81801AA/AB/BA/CA/DC/EB (ICH/ICH[02345]) I/O controller hub chips. 45198090Srdivacky */ 46200581Srdivacky 47198090Srdivacky#include <sys/param.h> 48198090Srdivacky#include <sys/systm.h> 49193323Sed#include <sys/kernel.h> 50194612Sed#include <sys/module.h> 51198090Srdivacky#include <sys/errno.h> 52193323Sed#include <sys/lock.h> 53193323Sed#include <sys/mutex.h> 54193323Sed#include <sys/syslog.h> 55193323Sed#include <sys/bus.h> 56193323Sed 57193323Sed#include <machine/bus.h> 58193323Sed#include <sys/rman.h> 59193323Sed#include <machine/resource.h> 60193323Sed 61193323Sed#include <dev/pci/pcivar.h> 62194612Sed#include <dev/pci/pcireg.h> 63193323Sed 64193323Sed#include <dev/smbus/smbconf.h> 65193323Sed 66193323Sed#include <dev/ichsmb/ichsmb_var.h> 67193323Sed#include <dev/ichsmb/ichsmb_reg.h> 68193323Sed 69193323Sed/* PCI unique identifiers */ 70193323Sed#define ID_82801AA 0x24138086 71193323Sed#define ID_82801AB 0x24238086 72198090Srdivacky#define ID_82801BA 0x24438086 73193574Sed#define ID_82801CA 0x24838086 74193574Sed#define ID_82801DC 0x24C38086 75198090Srdivacky#define ID_82801EB 0x24D38086 76198090Srdivacky#define ID_82801FB 0x266A8086 77198090Srdivacky#define ID_82801GB 0x27da8086 78198090Srdivacky#define ID_6300ESB 0x25a48086 79198090Srdivacky#define ID_631xESB 0x269b8086 80193323Sed 81193323Sed#define PCIS_SERIALBUS_SMBUS_PROGIF 0x00 82198090Srdivacky 83193323Sed/* Internal functions */ 84198396Srdivackystatic int ichsmb_pci_probe(device_t dev); 85193323Sedstatic int ichsmb_pci_attach(device_t dev); 86193323Sed/*Use generic one for now*/ 87193323Sed#if 0 88193323Sedstatic int ichsmb_pci_detach(device_t dev); 89198090Srdivacky#endif 90198090Srdivacky 91193323Sed/* Device methods */ 92193323Sedstatic device_method_t ichsmb_pci_methods[] = { 93198090Srdivacky /* Device interface */ 94193323Sed DEVMETHOD(device_probe, ichsmb_pci_probe), 95193323Sed DEVMETHOD(device_attach, ichsmb_pci_attach), 96193323Sed DEVMETHOD(device_detach, ichsmb_detach), 97193323Sed 98193323Sed /* Bus methods */ 99193323Sed DEVMETHOD(bus_print_child, bus_generic_print_child), 100193323Sed 101193323Sed /* SMBus methods */ 102193323Sed DEVMETHOD(smbus_callback, ichsmb_callback), 103193323Sed DEVMETHOD(smbus_quick, ichsmb_quick), 104193323Sed DEVMETHOD(smbus_sendb, ichsmb_sendb), 105193323Sed DEVMETHOD(smbus_recvb, ichsmb_recvb), 106198090Srdivacky DEVMETHOD(smbus_writeb, ichsmb_writeb), 107193323Sed DEVMETHOD(smbus_writew, ichsmb_writew), 108193323Sed DEVMETHOD(smbus_readb, ichsmb_readb), 109193323Sed DEVMETHOD(smbus_readw, ichsmb_readw), 110198090Srdivacky DEVMETHOD(smbus_pcall, ichsmb_pcall), 111193323Sed DEVMETHOD(smbus_bwrite, ichsmb_bwrite), 112193323Sed DEVMETHOD(smbus_bread, ichsmb_bread), 113193323Sed { 0, 0 } 114198090Srdivacky}; 115193323Sed 116193323Sedstatic driver_t ichsmb_pci_driver = { 117193323Sed "ichsmb", 118193323Sed ichsmb_pci_methods, 119198090Srdivacky sizeof(struct ichsmb_softc) 120198090Srdivacky}; 121193323Sed 122193323Sedstatic devclass_t ichsmb_pci_devclass; 123193323Sed 124193323SedDRIVER_MODULE(ichsmb, pci, ichsmb_pci_driver, ichsmb_pci_devclass, 0, 0); 125193323Sed 126193323Sedstatic int 127198090Srdivackyichsmb_pci_probe(device_t dev) 128193323Sed{ 129198090Srdivacky /* Check PCI identifier */ 130193323Sed switch (pci_get_devid(dev)) { 131193323Sed case ID_82801AA: 132193323Sed device_set_desc(dev, "Intel 82801AA (ICH) SMBus controller"); 133193323Sed break; 134193323Sed case ID_82801AB: 135193323Sed device_set_desc(dev, "Intel 82801AB (ICH0) SMBus controller"); 136193323Sed break; 137193323Sed case ID_82801BA: 138193323Sed device_set_desc(dev, "Intel 82801BA (ICH2) SMBus controller"); 139193323Sed break; 140193323Sed case ID_82801CA: 141193323Sed device_set_desc(dev, "Intel 82801CA (ICH3) SMBus controller"); 142193323Sed break; 143198396Srdivacky case ID_82801DC: 144198396Srdivacky device_set_desc(dev, "Intel 82801DC (ICH4) SMBus controller"); 145198396Srdivacky break; 146198396Srdivacky case ID_82801EB: 147193323Sed device_set_desc(dev, "Intel 82801EB (ICH5) SMBus controller"); 148193323Sed break; 149198090Srdivacky case ID_82801FB: 150198090Srdivacky device_set_desc(dev, "Intel 82801FB (ICH6) SMBus controller"); 151198090Srdivacky break; 152193323Sed case ID_82801GB: 153198090Srdivacky device_set_desc(dev, "Intel 82801GB (ICH7) SMBus controller"); 154193323Sed break; 155193323Sed case ID_6300ESB: 156193323Sed device_set_desc(dev, "Intel 6300ESB (ICH) SMBus controller"); 157193323Sed break; 158193323Sed case ID_631xESB: 159193323Sed device_set_desc(dev, "Intel 631xESB/6321ESB (ESB2) SMBus controller"); 160193323Sed break; 161193323Sed default: 162193323Sed if (pci_get_class(dev) == PCIC_SERIALBUS 163193323Sed && pci_get_subclass(dev) == PCIS_SERIALBUS_SMBUS 164193323Sed && pci_get_progif(dev) == PCIS_SERIALBUS_SMBUS_PROGIF) { 165193323Sed device_set_desc(dev, "SMBus controller"); 166193323Sed return (BUS_PROBE_DEFAULT); /* XXX */ 167193323Sed } 168193323Sed return (ENXIO); 169198090Srdivacky } 170193323Sed 171193323Sed /* Done */ 172193323Sed return (ichsmb_probe(dev)); 173198090Srdivacky} 174193323Sed 175193323Sedstatic int 176198090Srdivackyichsmb_pci_attach(device_t dev) 177193323Sed{ 178198396Srdivacky const sc_p sc = device_get_softc(dev); 179198090Srdivacky int error; 180193323Sed 181193323Sed /* Initialize private state */ 182193323Sed bzero(sc, sizeof(*sc)); 183198090Srdivacky sc->ich_cmd = -1; 184193323Sed sc->dev = dev; 185193323Sed 186193323Sed /* Allocate an I/O range */ 187198090Srdivacky sc->io_rid = ICH_SMB_BASE; 188193323Sed sc->io_res = bus_alloc_resource(dev, SYS_RES_IOPORT, 189193323Sed &sc->io_rid, 0, ~0, 16, RF_ACTIVE); 190193323Sed if (sc->io_res == NULL) 191193323Sed sc->io_res = bus_alloc_resource(dev, SYS_RES_IOPORT, 192193323Sed &sc->io_rid, 0, ~0, 32, RF_ACTIVE); 193193323Sed if (sc->io_res == NULL) { 194200581Srdivacky device_printf(dev, "can't map I/O\n"); 195200581Srdivacky error = ENXIO; 196200581Srdivacky goto fail; 197200581Srdivacky } 198193323Sed sc->io_bst = rman_get_bustag(sc->io_res); 199193323Sed sc->io_bsh = rman_get_bushandle(sc->io_res); 200193323Sed 201193323Sed /* Allocate interrupt */ 202193323Sed sc->irq_rid = 0; 203193323Sed sc->irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, 204193323Sed &sc->irq_rid, RF_ACTIVE | RF_SHAREABLE); 205193323Sed if (sc->irq_res == NULL) { 206198090Srdivacky device_printf(dev, "can't get IRQ\n"); 207193323Sed error = ENXIO; 208193574Sed goto fail; 209193323Sed } 210193574Sed 211193323Sed /* Enable device */ 212193574Sed pci_write_config(dev, ICH_HOSTC, ICH_HOSTC_HST_EN, 1); 213193323Sed 214193323Sed /* Done */ 215193323Sed error = ichsmb_attach(dev); 216193323Sed if (error) 217193323Sed goto fail; 218193323Sed return (0); 219193323Sed 220193323Sedfail: 221193323Sed /* Attach failed, release resources */ 222193323Sed ichsmb_release_resources(sc); 223193323Sed return (error); 224193323Sed} 225193323Sed 226193323Sed 227193323SedMODULE_DEPEND(ichsmb, pci, 1, 1, 1); 228193323SedMODULE_DEPEND(ichsmb, smbus, SMBUS_MINVER, SMBUS_PREFVER, SMBUS_MAXVER); 229198090SrdivackyMODULE_VERSION(ichsmb, 1); 230193323Sed