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 * $FreeBSD: src/sys/dev/ichsmb/ichsmb_pci.c,v 1.25 2009/12/16 12:25:27 avg Exp $ 39 */ 40 41 /* 42 * Support for the SMBus controller logical device which is part of the 43 * Intel 81801AA/AB/BA/CA/DC/EB (ICH/ICH[02345]) I/O controller hub chips. 44 */ 45 46 #include <sys/param.h> 47 #include <sys/systm.h> 48 #include <sys/kernel.h> 49 #include <sys/module.h> 50 #include <sys/errno.h> 51 #include <sys/lock.h> 52 #include <sys/mutex.h> 53 #include <sys/syslog.h> 54 #include <sys/bus.h> 55 56 #include <sys/rman.h> 57 58 #include <bus/pci/pcivar.h> 59 #include <bus/pci/pcireg.h> 60 61 #include <bus/smbus/smbconf.h> 62 63 #include "ichsmb_var.h" 64 #include "ichsmb_reg.h" 65 66 /* PCI unique identifiers */ 67 #define ID_82801AA 0x24138086 68 #define ID_82801AB 0x24238086 69 #define ID_82801BA 0x24438086 70 #define ID_82801CA 0x24838086 71 #define ID_82801DC 0x24C38086 72 #define ID_82801E 0x24538086 73 #define ID_82801EB 0x24D38086 74 #define ID_82801FB 0x266A8086 75 #define ID_82801GB 0x27da8086 76 #define ID_82801H 0x283e8086 77 #define ID_82801I 0x29308086 78 #define ID_82801JI 0x3a308086 79 #define ID_PCH 0x3b308086 80 #define ID_6300ESB 0x25a48086 81 #define ID_631xESB 0x269b8086 82 #define ID_DH89XXCC 0x23308086 83 #define ID_PATSBURG 0x1d228086 84 #define ID_CPT 0x1c228086 85 #define ID_PPT 0x1e228086 86 #define ID_AVOTON 0x1f3c8086 87 #define ID_COLETOCRK 0x23B08086 88 #define ID_LPT 0x8c228086 89 #define ID_LPT_LP 0x9c228086 90 91 #define PCIS_SERIALBUS_SMBUS_PROGIF 0x00 92 93 /* Internal functions */ 94 static int ichsmb_pci_probe(device_t dev); 95 static int ichsmb_pci_attach(device_t dev); 96 /*Use generic one for now*/ 97 #if 0 98 static int ichsmb_pci_detach(device_t dev); 99 #endif 100 101 /* Device methods */ 102 static device_method_t ichsmb_pci_methods[] = { 103 /* Device interface */ 104 DEVMETHOD(device_probe, ichsmb_pci_probe), 105 DEVMETHOD(device_attach, ichsmb_pci_attach), 106 DEVMETHOD(device_detach, ichsmb_detach), 107 108 /* Bus methods */ 109 DEVMETHOD(bus_print_child, bus_generic_print_child), 110 111 /* SMBus methods */ 112 DEVMETHOD(smbus_callback, ichsmb_callback), 113 DEVMETHOD(smbus_quick, ichsmb_quick), 114 DEVMETHOD(smbus_sendb, ichsmb_sendb), 115 DEVMETHOD(smbus_recvb, ichsmb_recvb), 116 DEVMETHOD(smbus_writeb, ichsmb_writeb), 117 DEVMETHOD(smbus_writew, ichsmb_writew), 118 DEVMETHOD(smbus_readb, ichsmb_readb), 119 DEVMETHOD(smbus_readw, ichsmb_readw), 120 DEVMETHOD(smbus_pcall, ichsmb_pcall), 121 DEVMETHOD(smbus_bwrite, ichsmb_bwrite), 122 DEVMETHOD(smbus_bread, ichsmb_bread), 123 DEVMETHOD_END 124 }; 125 126 static driver_t ichsmb_pci_driver = { 127 "ichsmb", 128 ichsmb_pci_methods, 129 sizeof(struct ichsmb_softc) 130 }; 131 132 static devclass_t ichsmb_pci_devclass; 133 134 DRIVER_MODULE(ichsmb, pci, ichsmb_pci_driver, ichsmb_pci_devclass, NULL, NULL); 135 136 static int 137 ichsmb_pci_probe(device_t dev) 138 { 139 /* Check PCI identifier */ 140 switch (pci_get_devid(dev)) { 141 case ID_82801AA: 142 device_set_desc(dev, "Intel 82801AA (ICH) SMBus controller"); 143 break; 144 case ID_82801AB: 145 device_set_desc(dev, "Intel 82801AB (ICH0) SMBus controller"); 146 break; 147 case ID_82801BA: 148 device_set_desc(dev, "Intel 82801BA (ICH2) SMBus controller"); 149 break; 150 case ID_82801CA: 151 device_set_desc(dev, "Intel 82801CA (ICH3) SMBus controller"); 152 break; 153 case ID_82801DC: 154 device_set_desc(dev, "Intel 82801DC (ICH4) SMBus controller"); 155 break; 156 case ID_82801E: 157 device_set_desc(dev, "Intel 82801E (C-ICH) SMBus controller"); 158 break; 159 case ID_82801EB: 160 device_set_desc(dev, "Intel 82801EB (ICH5) SMBus controller"); 161 break; 162 case ID_82801FB: 163 device_set_desc(dev, "Intel 82801FB (ICH6) SMBus controller"); 164 break; 165 case ID_82801GB: 166 device_set_desc(dev, "Intel 82801GB (ICH7) SMBus controller"); 167 break; 168 case ID_82801H: 169 device_set_desc(dev, "Intel 82801H (ICH8) SMBus controller"); 170 break; 171 case ID_82801I: 172 device_set_desc(dev, "Intel 82801I (ICH9) SMBus controller"); 173 break; 174 case ID_82801JI: 175 device_set_desc(dev, "Intel 82801JI (ICH10) SMBus controller"); 176 break; 177 case ID_PCH: 178 device_set_desc(dev, "Intel PCH SMBus controller"); 179 break; 180 case ID_6300ESB: 181 device_set_desc(dev, "Intel 6300ESB (ICH) SMBus controller"); 182 break; 183 case ID_631xESB: 184 device_set_desc(dev, "Intel 631xESB/6321ESB (ESB2) SMBus controller"); 185 break; 186 case ID_DH89XXCC: 187 device_set_desc(dev, "Intel DH89xxCC SMBus controller"); 188 break; 189 case ID_PATSBURG: 190 device_set_desc(dev, "Intel Patsburg SMBus controller"); 191 break; 192 case ID_CPT: 193 device_set_desc(dev, "Intel Cougar Point SMBus controller"); 194 break; 195 case ID_PPT: 196 device_set_desc(dev, "Intel Panther Point SMBus controller"); 197 break; 198 case ID_AVOTON: 199 device_set_desc(dev, "Intel Avoton SMBus controller"); 200 break; 201 case ID_COLETOCRK: 202 device_set_desc(dev, "Intel Coleto Creek SMBus controller"); 203 break; 204 case ID_LPT: 205 device_set_desc(dev, "Intel Lynx Point SMBus controller"); 206 break; 207 case ID_LPT_LP: 208 device_set_desc(dev, "Intel Lynx Point-LP SMBus controller-0"); 209 break; 210 default: 211 return (ENXIO); 212 } 213 214 /* Done */ 215 return (ichsmb_probe(dev)); 216 } 217 218 static int 219 ichsmb_pci_attach(device_t dev) 220 { 221 const sc_p sc = device_get_softc(dev); 222 int error; 223 224 /* Initialize private state */ 225 bzero(sc, sizeof(*sc)); 226 sc->ich_cmd = -1; 227 sc->dev = dev; 228 229 /* Allocate an I/O range */ 230 sc->io_rid = ICH_SMB_BASE; 231 sc->io_res = bus_alloc_resource(dev, SYS_RES_IOPORT, 232 &sc->io_rid, 0, ~0, 16, RF_ACTIVE); 233 if (sc->io_res == NULL) 234 sc->io_res = bus_alloc_resource(dev, SYS_RES_IOPORT, 235 &sc->io_rid, 0ul, ~0ul, 32, RF_ACTIVE); 236 if (sc->io_res == NULL) { 237 device_printf(dev, "can't map I/O\n"); 238 error = ENXIO; 239 goto fail; 240 } 241 242 /* Allocate interrupt */ 243 sc->irq_rid = 0; 244 sc->irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, 245 &sc->irq_rid, RF_ACTIVE | RF_SHAREABLE); 246 if (sc->irq_res == NULL) { 247 device_printf(dev, "can't get IRQ\n"); 248 error = ENXIO; 249 goto fail; 250 } 251 252 /* Enable device */ 253 pci_write_config(dev, ICH_HOSTC, ICH_HOSTC_HST_EN, 1); 254 255 /* Done */ 256 error = ichsmb_attach(dev); 257 if (error) 258 goto fail; 259 return (0); 260 261 fail: 262 /* Attach failed, release resources */ 263 ichsmb_release_resources(sc); 264 return (error); 265 } 266 267 268 MODULE_DEPEND(ichsmb, pci, 1, 1, 1); 269 MODULE_DEPEND(ichsmb, smbus, SMBUS_MINVER, SMBUS_PREFVER, SMBUS_MAXVER); 270 MODULE_VERSION(ichsmb, 1); 271