ahc_cardbus.c revision 1.30
1 /* $NetBSD: ahc_cardbus.c,v 1.30 2010/02/24 19:52:51 dyoung Exp $ */ 2 3 /*- 4 * Copyright (c) 2000, 2005 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 9 * NASA Ames Research Center. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 /* 34 * CardBus front-end for the Adaptec AIC-7xxx family of SCSI controllers. 35 * 36 * TODO: 37 * - power management 38 */ 39 40 #include <sys/cdefs.h> 41 __KERNEL_RCSID(0, "$NetBSD: ahc_cardbus.c,v 1.30 2010/02/24 19:52:51 dyoung Exp $"); 42 43 #include "opt_ahc_cardbus.h" 44 45 #include <sys/param.h> 46 #include <sys/systm.h> 47 #include <sys/malloc.h> 48 #include <sys/kernel.h> 49 #include <sys/queue.h> 50 #include <sys/device.h> 51 52 #include <sys/bus.h> 53 #include <sys/intr.h> 54 55 #include <dev/scsipi/scsi_all.h> 56 #include <dev/scsipi/scsipi_all.h> 57 #include <dev/scsipi/scsiconf.h> 58 59 #include <dev/pci/pcireg.h> 60 61 #include <dev/cardbus/cardbusvar.h> 62 #include <dev/pci/pcidevs.h> 63 64 #include <dev/ic/aic7xxx_osm.h> 65 #include <dev/ic/aic7xxx_inline.h> 66 67 68 #ifndef AHC_CARDBUS_DEFAULT_SCSI_ID 69 #define AHC_CARDBUS_DEFAULT_SCSI_ID 0x7 70 #endif 71 72 #define AHC_CARDBUS_IOBA 0x10 73 #define AHC_CARDBUS_MMBA 0x14 74 75 struct ahc_cardbus_softc { 76 struct ahc_softc sc_ahc; /* real AHC */ 77 78 /* CardBus-specific goo. */ 79 cardbus_devfunc_t sc_ct; /* our CardBus devfuncs */ 80 pcitag_t sc_tag; 81 82 int sc_cbenable; /* what CardBus access type to enable */ 83 int sc_csr; /* CSR bits */ 84 bus_size_t sc_size; 85 }; 86 87 int ahc_cardbus_match(device_t, cfdata_t, void *); 88 void ahc_cardbus_attach(device_t, device_t, void *); 89 int ahc_cardbus_detach(device_t, int); 90 91 CFATTACH_DECL_NEW(ahc_cardbus, sizeof(struct ahc_cardbus_softc), 92 ahc_cardbus_match, ahc_cardbus_attach, ahc_cardbus_detach, NULL); 93 94 int 95 ahc_cardbus_match(device_t parent, cfdata_t match, void *aux) 96 { 97 struct cardbus_attach_args *ca = aux; 98 99 if (CARDBUS_VENDOR(ca->ca_id) == PCI_VENDOR_ADP && 100 CARDBUS_PRODUCT(ca->ca_id) == PCI_PRODUCT_ADP_APA1480) 101 return (1); 102 103 return (0); 104 } 105 106 void 107 ahc_cardbus_attach(device_t parent, device_t self, void *aux) 108 { 109 struct cardbus_attach_args *ca = aux; 110 struct ahc_cardbus_softc *csc = device_private(self); 111 struct ahc_softc *ahc = &csc->sc_ahc; 112 cardbus_devfunc_t ct = ca->ca_ct; 113 cardbus_chipset_tag_t cc = ct->ct_cc; 114 cardbus_function_tag_t cf = ct->ct_cf; 115 bus_space_tag_t bst; 116 bus_space_handle_t bsh; 117 pcireg_t reg; 118 u_int sxfrctl1 = 0; 119 u_char sblkctl; 120 121 122 ahc->sc_dev = self; 123 csc->sc_ct = ct; 124 csc->sc_tag = ca->ca_tag; 125 126 printf(": Adaptec ADP-1480 SCSI\n"); 127 128 /* 129 * Map the device. 130 */ 131 csc->sc_csr = PCI_COMMAND_MASTER_ENABLE; 132 if (Cardbus_mapreg_map(csc->sc_ct, AHC_CARDBUS_MMBA, 133 PCI_MAPREG_TYPE_MEM|PCI_MAPREG_MEM_TYPE_32BIT, 0, 134 &bst, &bsh, NULL, &csc->sc_size) == 0) { 135 csc->sc_cbenable = CARDBUS_MEM_ENABLE; 136 csc->sc_csr |= PCI_COMMAND_MEM_ENABLE; 137 } else if (Cardbus_mapreg_map(csc->sc_ct, AHC_CARDBUS_IOBA, 138 PCI_MAPREG_TYPE_IO, 0, &bst, &bsh, NULL, &csc->sc_size) == 0) { 139 csc->sc_cbenable = CARDBUS_IO_ENABLE; 140 csc->sc_csr |= PCI_COMMAND_IO_ENABLE; 141 } else { 142 printf("%s: unable to map device registers\n", 143 ahc_name(ahc)); 144 return; 145 } 146 147 /* Make sure the right access type is on the CardBus bridge. */ 148 (*ct->ct_cf->cardbus_ctrl)(cc, csc->sc_cbenable); 149 (*ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_BM_ENABLE); 150 151 /* Enable the appropriate bits in the PCI CSR. */ 152 reg = cardbus_conf_read(cc, cf, ca->ca_tag, PCI_COMMAND_STATUS_REG); 153 reg &= ~(PCI_COMMAND_IO_ENABLE|PCI_COMMAND_MEM_ENABLE); 154 reg |= csc->sc_csr; 155 cardbus_conf_write(cc, cf, ca->ca_tag, PCI_COMMAND_STATUS_REG, reg); 156 157 /* 158 * Make sure the latency timer is set to some reasonable 159 * value. 160 */ 161 reg = cardbus_conf_read(cc, cf, ca->ca_tag, PCI_BHLC_REG); 162 if (PCI_LATTIMER(reg) < 0x20) { 163 reg &= ~(PCI_LATTIMER_MASK << PCI_LATTIMER_SHIFT); 164 reg |= (0x20 << PCI_LATTIMER_SHIFT); 165 cardbus_conf_write(cc, cf, ca->ca_tag, PCI_BHLC_REG, reg); 166 } 167 168 ahc_set_name(ahc, device_xname(ahc->sc_dev)); 169 170 ahc->parent_dmat = ca->ca_dmat; 171 ahc->tag = bst; 172 ahc->bsh = bsh; 173 174 /* 175 * ADP-1480 is always an AIC-7860. 176 */ 177 ahc->chip = AHC_AIC7860 | AHC_PCI; 178 ahc->features = AHC_AIC7860_FE|AHC_REMOVABLE; 179 ahc->bugs |= AHC_TMODE_WIDEODD_BUG|AHC_CACHETHEN_BUG|AHC_PCI_MWI_BUG; 180 if (PCI_REVISION(ca->ca_class) >= 1) 181 ahc->bugs |= AHC_PCI_2_1_RETRY_BUG; 182 183 if (ahc_softc_init(ahc) != 0) 184 return; 185 186 /* 187 * On all CardBus adapters, we allow SCB paging. 188 */ 189 ahc->flags = AHC_PAGESCBS; 190 191 ahc->channel = 'A'; 192 193 ahc_intr_enable(ahc, FALSE); 194 195 ahc_reset(ahc); 196 197 /* 198 * Establish the interrupt. 199 */ 200 ahc->ih = cardbus_intr_establish(cc, cf, ca->ca_intrline, IPL_BIO, 201 ahc_intr, ahc); 202 if (ahc->ih == NULL) { 203 printf("%s: unable to establish interrupt\n", 204 ahc_name(ahc)); 205 return; 206 } 207 208 ahc->seep_config = malloc(sizeof(*ahc->seep_config), 209 M_DEVBUF, M_NOWAIT); 210 if (ahc->seep_config == NULL) 211 return; 212 213 ahc_check_extport(ahc, &sxfrctl1); 214 /* 215 * Take the LED out of diagnostic mode. 216 */ 217 sblkctl = ahc_inb(ahc, SBLKCTL); 218 ahc_outb(ahc, SBLKCTL, (sblkctl & ~(DIAGLEDEN|DIAGLEDON))); 219 220 /* 221 * I don't know where this is set in the SEEPROM or by the 222 * BIOS, so we default to 100%. 223 */ 224 ahc_outb(ahc, DSPCISTATUS, DFTHRSH_100); 225 226 if (ahc->flags & AHC_USEDEFAULTS) { 227 int our_id; 228 /* 229 * Assume only one connector and always turn 230 * on termination. 231 */ 232 our_id = AHC_CARDBUS_DEFAULT_SCSI_ID; 233 sxfrctl1 = STPWEN; 234 ahc_outb(ahc, SCSICONF, our_id | ENSPCHK | RESET_SCSI); 235 ahc->our_id = our_id; 236 } 237 238 printf("%s: aic7860", ahc_name(ahc)); 239 240 /* 241 * Record our termination setting for the 242 * generic initialization routine. 243 */ 244 if ((sxfrctl1 & STPWEN) != 0) 245 ahc->flags |= AHC_TERM_ENB_A; 246 247 if (ahc_init(ahc)) { 248 ahc_free(ahc); 249 return; 250 } 251 252 ahc_attach(ahc); 253 } 254 255 int 256 ahc_cardbus_detach(device_t self, int flags) 257 { 258 struct ahc_cardbus_softc *csc = device_private(self); 259 struct ahc_softc *ahc = &csc->sc_ahc; 260 261 int rv; 262 263 rv = ahc_detach(ahc, flags); 264 if (rv) 265 return rv; 266 267 if (ahc->ih) { 268 cardbus_intr_disestablish(csc->sc_ct->ct_cc, 269 csc->sc_ct->ct_cf, ahc->ih); 270 ahc->ih = 0; 271 } 272 273 if (csc->sc_cbenable) { 274 if (csc->sc_cbenable == CARDBUS_MEM_ENABLE) 275 Cardbus_mapreg_unmap(csc->sc_ct, AHC_CARDBUS_MMBA, 276 ahc->tag, ahc->bsh, csc->sc_size); 277 else if (csc->sc_cbenable == CARDBUS_IO_ENABLE) 278 Cardbus_mapreg_unmap(csc->sc_ct, AHC_CARDBUS_IOBA, 279 ahc->tag, ahc->bsh, csc->sc_size); 280 csc->sc_cbenable = 0; 281 } 282 283 return (0); 284 } 285
Indexes created Sun Oct 12 09:09:55 GMT 2025