ichsmb_pci.c revision 200091
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 200091 2009-12-04 05:45:46Z avg $"); 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_6300ESB 0x25a48086 82#define ID_631xESB 0x269b8086 83 84#define PCIS_SERIALBUS_SMBUS_PROGIF 0x00 85 86/* Internal functions */ 87static int ichsmb_pci_probe(device_t dev); 88static int ichsmb_pci_attach(device_t dev); 89/*Use generic one for now*/ 90#if 0 91static int ichsmb_pci_detach(device_t dev); 92#endif 93 94/* Device methods */ 95static device_method_t ichsmb_pci_methods[] = { 96 /* Device interface */ 97 DEVMETHOD(device_probe, ichsmb_pci_probe), 98 DEVMETHOD(device_attach, ichsmb_pci_attach), 99 DEVMETHOD(device_detach, ichsmb_detach), 100 101 /* Bus methods */ 102 DEVMETHOD(bus_print_child, bus_generic_print_child), 103 104 /* SMBus methods */ 105 DEVMETHOD(smbus_callback, ichsmb_callback), 106 DEVMETHOD(smbus_quick, ichsmb_quick), 107 DEVMETHOD(smbus_sendb, ichsmb_sendb), 108 DEVMETHOD(smbus_recvb, ichsmb_recvb), 109 DEVMETHOD(smbus_writeb, ichsmb_writeb), 110 DEVMETHOD(smbus_writew, ichsmb_writew), 111 DEVMETHOD(smbus_readb, ichsmb_readb), 112 DEVMETHOD(smbus_readw, ichsmb_readw), 113 DEVMETHOD(smbus_pcall, ichsmb_pcall), 114 DEVMETHOD(smbus_bwrite, ichsmb_bwrite), 115 DEVMETHOD(smbus_bread, ichsmb_bread), 116 { 0, 0 } 117}; 118 119static driver_t ichsmb_pci_driver = { 120 "ichsmb", 121 ichsmb_pci_methods, 122 sizeof(struct ichsmb_softc) 123}; 124 125static devclass_t ichsmb_pci_devclass; 126 127DRIVER_MODULE(ichsmb, pci, ichsmb_pci_driver, ichsmb_pci_devclass, 0, 0); 128 129static int 130ichsmb_pci_probe(device_t dev) 131{ 132 /* Check PCI identifier */ 133 switch (pci_get_devid(dev)) { 134 case ID_82801AA: 135 device_set_desc(dev, "Intel 82801AA (ICH) SMBus controller"); 136 break; 137 case ID_82801AB: 138 device_set_desc(dev, "Intel 82801AB (ICH0) SMBus controller"); 139 break; 140 case ID_82801BA: 141 device_set_desc(dev, "Intel 82801BA (ICH2) SMBus controller"); 142 break; 143 case ID_82801CA: 144 device_set_desc(dev, "Intel 82801CA (ICH3) SMBus controller"); 145 break; 146 case ID_82801DC: 147 device_set_desc(dev, "Intel 82801DC (ICH4) SMBus controller"); 148 break; 149 case ID_82801EB: 150 device_set_desc(dev, "Intel 82801EB (ICH5) SMBus controller"); 151 break; 152 case ID_82801FB: 153 device_set_desc(dev, "Intel 82801FB (ICH6) SMBus controller"); 154 break; 155 case ID_82801GB: 156 device_set_desc(dev, "Intel 82801GB (ICH7) SMBus controller"); 157 break; 158 case ID_82801H: 159 device_set_desc(dev, "Intel 82801H (ICH8) SMBus controller"); 160 break; 161 case ID_82801I: 162 device_set_desc(dev, "Intel 82801I (ICH9) SMBus controller"); 163 break; 164 case ID_82801JI: 165 device_set_desc(dev, "Intel 82801JI (ICH10) SMBus controller"); 166 break; 167 case ID_6300ESB: 168 device_set_desc(dev, "Intel 6300ESB (ICH) SMBus controller"); 169 break; 170 case ID_631xESB: 171 device_set_desc(dev, "Intel 631xESB/6321ESB (ESB2) SMBus controller"); 172 break; 173 default: 174 return (ENXIO); 175 } 176 177 /* Done */ 178 return (ichsmb_probe(dev)); 179} 180 181static int 182ichsmb_pci_attach(device_t dev) 183{ 184 const sc_p sc = device_get_softc(dev); 185 int error; 186 187 /* Initialize private state */ 188 bzero(sc, sizeof(*sc)); 189 sc->ich_cmd = -1; 190 sc->dev = dev; 191 192 /* Allocate an I/O range */ 193 sc->io_rid = ICH_SMB_BASE; 194 sc->io_res = bus_alloc_resource(dev, SYS_RES_IOPORT, 195 &sc->io_rid, 0, ~0, 16, RF_ACTIVE); 196 if (sc->io_res == NULL) 197 sc->io_res = bus_alloc_resource(dev, SYS_RES_IOPORT, 198 &sc->io_rid, 0ul, ~0ul, 32, RF_ACTIVE); 199 if (sc->io_res == NULL) { 200 device_printf(dev, "can't map I/O\n"); 201 error = ENXIO; 202 goto fail; 203 } 204 205 /* Allocate interrupt */ 206 sc->irq_rid = 0; 207 sc->irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, 208 &sc->irq_rid, RF_ACTIVE | RF_SHAREABLE); 209 if (sc->irq_res == NULL) { 210 device_printf(dev, "can't get IRQ\n"); 211 error = ENXIO; 212 goto fail; 213 } 214 215 /* Enable device */ 216 pci_write_config(dev, ICH_HOSTC, ICH_HOSTC_HST_EN, 1); 217 218 /* Done */ 219 error = ichsmb_attach(dev); 220 if (error) 221 goto fail; 222 return (0); 223 224fail: 225 /* Attach failed, release resources */ 226 ichsmb_release_resources(sc); 227 return (error); 228} 229 230 231MODULE_DEPEND(ichsmb, pci, 1, 1, 1); 232MODULE_DEPEND(ichsmb, smbus, SMBUS_MINVER, SMBUS_PREFVER, SMBUS_MAXVER); 233MODULE_VERSION(ichsmb, 1); 234