ichsmb_pci.c revision 244981
1/*- 2 * ichsmb_pci.c 3 * 4 * Author: Archie Cobbs <archie@freebsd.org> 5 * Copyright (c) 2000 Whistle Communications, Inc. 6 * All rights reserved. 7 * Author: Archie Cobbs <archie@freebsd.org> 8 * 9 * Subject to the following obligations and disclaimer of warranty, use and 10 * redistribution of this software, in source or object code forms, with or 11 * without modifications are expressly permitted by Whistle Communications; 12 * provided, however, that: 13 * 1. Any and all reproductions of the source or object code must include the 14 * copyright notice above and the following disclaimer of warranties; and 15 * 2. No rights are granted, in any manner or form, to use Whistle 16 * Communications, Inc. trademarks, including the mark "WHISTLE 17 * COMMUNICATIONS" on advertising, endorsements, or otherwise except as 18 * such appears in the above copyright notice or in the software. 19 * 20 * THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND 21 * TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO 22 * REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE, 23 * INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF 24 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT. 25 * WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY 26 * REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS 27 * SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE. 28 * IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES 29 * RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING 30 * WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, 31 * PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR 32 * SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY 33 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 34 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 35 * THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY 36 * OF SUCH DAMAGE. 37 */ 38 39#include <sys/cdefs.h> 40__FBSDID("$FreeBSD: head/sys/dev/ichsmb/ichsmb_pci.c 244981 2013-01-02 22:01:26Z jfv $"); 41 42/* 43 * Support for the SMBus controller logical device which is part of the 44 * Intel 81801AA/AB/BA/CA/DC/EB (ICH/ICH[02345]) I/O controller hub chips. 45 */ 46 47#include <sys/param.h> 48#include <sys/systm.h> 49#include <sys/kernel.h> 50#include <sys/module.h> 51#include <sys/errno.h> 52#include <sys/lock.h> 53#include <sys/mutex.h> 54#include <sys/syslog.h> 55#include <sys/bus.h> 56 57#include <machine/bus.h> 58#include <sys/rman.h> 59#include <machine/resource.h> 60 61#include <dev/pci/pcivar.h> 62#include <dev/pci/pcireg.h> 63 64#include <dev/smbus/smbconf.h> 65 66#include <dev/ichsmb/ichsmb_var.h> 67#include <dev/ichsmb/ichsmb_reg.h> 68 69/* PCI unique identifiers */ 70#define ID_82801AA 0x24138086 71#define ID_82801AB 0x24238086 72#define ID_82801BA 0x24438086 73#define ID_82801CA 0x24838086 74#define ID_82801DC 0x24C38086 75#define ID_82801EB 0x24D38086 76#define ID_82801FB 0x266A8086 77#define ID_82801GB 0x27da8086 78#define ID_82801H 0x283e8086 79#define ID_82801I 0x29308086 80#define ID_82801JI 0x3a308086 81#define ID_PCH 0x3b308086 82#define ID_6300ESB 0x25a48086 83#define ID_631xESB 0x269b8086 84#define ID_DH89XXCC 0x23308086 85#define ID_PATSBURG 0x1d228086 86#define ID_CPT 0x1c228086 87#define ID_PPT 0x1e228086 88#define ID_LPT 0x8c228086 89 90#define PCIS_SERIALBUS_SMBUS_PROGIF 0x00 91 92/* Internal functions */ 93static int ichsmb_pci_probe(device_t dev); 94static int ichsmb_pci_attach(device_t dev); 95/*Use generic one for now*/ 96#if 0 97static int ichsmb_pci_detach(device_t dev); 98#endif 99 100/* Device methods */ 101static device_method_t ichsmb_pci_methods[] = { 102 /* Device interface */ 103 DEVMETHOD(device_probe, ichsmb_pci_probe), 104 DEVMETHOD(device_attach, ichsmb_pci_attach), 105 DEVMETHOD(device_detach, ichsmb_detach), 106 107 /* SMBus methods */ 108 DEVMETHOD(smbus_callback, ichsmb_callback), 109 DEVMETHOD(smbus_quick, ichsmb_quick), 110 DEVMETHOD(smbus_sendb, ichsmb_sendb), 111 DEVMETHOD(smbus_recvb, ichsmb_recvb), 112 DEVMETHOD(smbus_writeb, ichsmb_writeb), 113 DEVMETHOD(smbus_writew, ichsmb_writew), 114 DEVMETHOD(smbus_readb, ichsmb_readb), 115 DEVMETHOD(smbus_readw, ichsmb_readw), 116 DEVMETHOD(smbus_pcall, ichsmb_pcall), 117 DEVMETHOD(smbus_bwrite, ichsmb_bwrite), 118 DEVMETHOD(smbus_bread, ichsmb_bread), 119 120 DEVMETHOD_END 121}; 122 123static driver_t ichsmb_pci_driver = { 124 "ichsmb", 125 ichsmb_pci_methods, 126 sizeof(struct ichsmb_softc) 127}; 128 129static devclass_t ichsmb_pci_devclass; 130 131DRIVER_MODULE(ichsmb, pci, ichsmb_pci_driver, ichsmb_pci_devclass, 0, 0); 132 133static int 134ichsmb_pci_probe(device_t dev) 135{ 136 /* Check PCI identifier */ 137 switch (pci_get_devid(dev)) { 138 case ID_82801AA: 139 device_set_desc(dev, "Intel 82801AA (ICH) SMBus controller"); 140 break; 141 case ID_82801AB: 142 device_set_desc(dev, "Intel 82801AB (ICH0) SMBus controller"); 143 break; 144 case ID_82801BA: 145 device_set_desc(dev, "Intel 82801BA (ICH2) SMBus controller"); 146 break; 147 case ID_82801CA: 148 device_set_desc(dev, "Intel 82801CA (ICH3) SMBus controller"); 149 break; 150 case ID_82801DC: 151 device_set_desc(dev, "Intel 82801DC (ICH4) SMBus controller"); 152 break; 153 case ID_82801EB: 154 device_set_desc(dev, "Intel 82801EB (ICH5) SMBus controller"); 155 break; 156 case ID_82801FB: 157 device_set_desc(dev, "Intel 82801FB (ICH6) SMBus controller"); 158 break; 159 case ID_82801GB: 160 device_set_desc(dev, "Intel 82801GB (ICH7) SMBus controller"); 161 break; 162 case ID_82801H: 163 device_set_desc(dev, "Intel 82801H (ICH8) SMBus controller"); 164 break; 165 case ID_82801I: 166 device_set_desc(dev, "Intel 82801I (ICH9) SMBus controller"); 167 break; 168 case ID_82801JI: 169 device_set_desc(dev, "Intel 82801JI (ICH10) SMBus controller"); 170 break; 171 case ID_PCH: 172 device_set_desc(dev, "Intel PCH SMBus controller"); 173 break; 174 case ID_6300ESB: 175 device_set_desc(dev, "Intel 6300ESB (ICH) SMBus controller"); 176 break; 177 case ID_631xESB: 178 device_set_desc(dev, "Intel 631xESB/6321ESB (ESB2) SMBus controller"); 179 break; 180 case ID_DH89XXCC: 181 device_set_desc(dev, "Intel DH89xxCC SMBus controller"); 182 break; 183 case ID_PATSBURG: 184 device_set_desc(dev, "Intel Patsburg SMBus controller"); 185 break; 186 case ID_CPT: 187 device_set_desc(dev, "Intel Cougar Point SMBus controller"); 188 break; 189 case ID_PPT: 190 device_set_desc(dev, "Intel Panther Point SMBus controller"); 191 break; 192 case ID_LPT: 193 device_set_desc(dev, "Intel Lynx Point SMBus controller"); 194 break; 195 default: 196 return (ENXIO); 197 } 198 199 /* Done */ 200 return (ichsmb_probe(dev)); 201} 202 203static int 204ichsmb_pci_attach(device_t dev) 205{ 206 const sc_p sc = device_get_softc(dev); 207 int error; 208 209 /* Initialize private state */ 210 bzero(sc, sizeof(*sc)); 211 sc->ich_cmd = -1; 212 sc->dev = dev; 213 214 /* Allocate an I/O range */ 215 sc->io_rid = ICH_SMB_BASE; 216 sc->io_res = bus_alloc_resource(dev, SYS_RES_IOPORT, 217 &sc->io_rid, 0, ~0, 16, RF_ACTIVE); 218 if (sc->io_res == NULL) 219 sc->io_res = bus_alloc_resource(dev, SYS_RES_IOPORT, 220 &sc->io_rid, 0ul, ~0ul, 32, RF_ACTIVE); 221 if (sc->io_res == NULL) { 222 device_printf(dev, "can't map I/O\n"); 223 error = ENXIO; 224 goto fail; 225 } 226 227 /* Allocate interrupt */ 228 sc->irq_rid = 0; 229 sc->irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, 230 &sc->irq_rid, RF_ACTIVE | RF_SHAREABLE); 231 if (sc->irq_res == NULL) { 232 device_printf(dev, "can't get IRQ\n"); 233 error = ENXIO; 234 goto fail; 235 } 236 237 /* Enable device */ 238 pci_write_config(dev, ICH_HOSTC, ICH_HOSTC_HST_EN, 1); 239 240 /* Done */ 241 error = ichsmb_attach(dev); 242 if (error) 243 goto fail; 244 return (0); 245 246fail: 247 /* Attach failed, release resources */ 248 ichsmb_release_resources(sc); 249 return (error); 250} 251 252 253MODULE_DEPEND(ichsmb, pci, 1, 1, 1); 254MODULE_DEPEND(ichsmb, smbus, SMBUS_MINVER, SMBUS_PREFVER, SMBUS_MAXVER); 255MODULE_VERSION(ichsmb, 1); 256