| 1 | /* $NetBSD: ahc_cardbus.c,v 1.36 2016/07/14 04:00:45 msaitoh 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 1.36 2016/07/14 04:00:45 msaitoh 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_bar; |
| 83 | pcireg_t sc_csr; |
| 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 (PCI_VENDOR(ca->ca_id) == PCI_VENDOR_ADP && |
| 100 | PCI_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 | bus_space_tag_t bst; |
| 114 | bus_space_handle_t bsh; |
| 115 | pcireg_t reg; |
| 116 | u_int sxfrctl1 = 0; |
| 117 | u_char sblkctl; |
| 118 | |
| 119 | |
| 120 | ahc->sc_dev = self; |
| 121 | csc->sc_ct = ct; |
| 122 | csc->sc_tag = ca->ca_tag; |
| 123 | |
| 124 | printf(": Adaptec ADP-1480 SCSI\n" ); |
| 125 | |
| 126 | /* |
| 127 | * Map the device. |
| 128 | */ |
| 129 | csc->sc_csr = PCI_COMMAND_MASTER_ENABLE; |
| 130 | if (Cardbus_mapreg_map(csc->sc_ct, AHC_CARDBUS_MMBA, |
| 131 | PCI_MAPREG_TYPE_MEM|PCI_MAPREG_MEM_TYPE_32BIT, 0, |
| 132 | &bst, &bsh, NULL, &csc->sc_size) == 0) { |
| 133 | csc->sc_bar = AHC_CARDBUS_MMBA; |
| 134 | csc->sc_csr |= PCI_COMMAND_MEM_ENABLE; |
| 135 | } else if (Cardbus_mapreg_map(csc->sc_ct, AHC_CARDBUS_IOBA, |
| 136 | PCI_MAPREG_TYPE_IO, 0, &bst, &bsh, NULL, &csc->sc_size) == 0) { |
| 137 | csc->sc_bar = AHC_CARDBUS_IOBA; |
| 138 | csc->sc_csr |= PCI_COMMAND_IO_ENABLE; |
| 139 | } else { |
| 140 | csc->sc_bar = 0; |
| 141 | aprint_error("%s: unable to map device registers\n" , |
| 142 | ahc_name(ahc)); |
| 143 | return; |
| 144 | } |
| 145 | |
| 146 | /* Enable the appropriate bits in the PCI CSR. */ |
| 147 | reg = Cardbus_conf_read(ct, ca->ca_tag, PCI_COMMAND_STATUS_REG); |
| 148 | reg &= ~(PCI_COMMAND_IO_ENABLE|PCI_COMMAND_MEM_ENABLE); |
| 149 | reg |= csc->sc_csr; |
| 150 | Cardbus_conf_write(ct, ca->ca_tag, PCI_COMMAND_STATUS_REG, reg); |
| 151 | |
| 152 | /* |
| 153 | * Make sure the latency timer is set to some reasonable |
| 154 | * value. |
| 155 | */ |
| 156 | reg = Cardbus_conf_read(ct, ca->ca_tag, PCI_BHLC_REG); |
| 157 | if (PCI_LATTIMER(reg) < 0x20) { |
| 158 | reg &= ~(PCI_LATTIMER_MASK << PCI_LATTIMER_SHIFT); |
| 159 | reg |= (0x20 << PCI_LATTIMER_SHIFT); |
| 160 | Cardbus_conf_write(ct, ca->ca_tag, PCI_BHLC_REG, reg); |
| 161 | } |
| 162 | |
| 163 | ahc_set_name(ahc, device_xname(ahc->sc_dev)); |
| 164 | |
| 165 | ahc->parent_dmat = ca->ca_dmat; |
| 166 | ahc->tag = bst; |
| 167 | ahc->bsh = bsh; |
| 168 | |
| 169 | /* |
| 170 | * ADP-1480 is always an AIC-7860. |
| 171 | */ |
| 172 | ahc->chip = AHC_AIC7860 | AHC_PCI; |
| 173 | ahc->features = AHC_AIC7860_FE|AHC_REMOVABLE; |
| 174 | ahc->bugs |= AHC_TMODE_WIDEODD_BUG|AHC_CACHETHEN_BUG|AHC_PCI_MWI_BUG; |
| 175 | if (PCI_REVISION(ca->ca_class) >= 1) |
| 176 | ahc->bugs |= AHC_PCI_2_1_RETRY_BUG; |
| 177 | |
| 178 | if (ahc_softc_init(ahc) != 0) |
| 179 | return; |
| 180 | |
| 181 | /* |
| 182 | * On all CardBus adapters, we allow SCB paging. |
| 183 | */ |
| 184 | ahc->flags = AHC_PAGESCBS; |
| 185 | |
| 186 | ahc->channel = 'A'; |
| 187 | |
| 188 | ahc_intr_enable(ahc, FALSE); |
| 189 | |
| 190 | ahc_reset(ahc); |
| 191 | |
| 192 | /* |
| 193 | * Establish the interrupt. |
| 194 | */ |
| 195 | ahc->ih = Cardbus_intr_establish(ct, IPL_BIO, ahc_intr, ahc); |
| 196 | if (ahc->ih == NULL) { |
| 197 | aprint_error("%s: unable to establish interrupt\n" , |
| 198 | ahc_name(ahc)); |
| 199 | return; |
| 200 | } |
| 201 | |
| 202 | ahc->seep_config = malloc(sizeof(*ahc->seep_config), |
| 203 | M_DEVBUF, M_NOWAIT); |
| 204 | if (ahc->seep_config == NULL) |
| 205 | return; |
| 206 | |
| 207 | ahc_check_extport(ahc, &sxfrctl1); |
| 208 | /* |
| 209 | * Take the LED out of diagnostic mode. |
| 210 | */ |
| 211 | sblkctl = ahc_inb(ahc, SBLKCTL); |
| 212 | ahc_outb(ahc, SBLKCTL, (sblkctl & ~(DIAGLEDEN|DIAGLEDON))); |
| 213 | |
| 214 | /* |
| 215 | * I don't know where this is set in the SEEPROM or by the |
| 216 | * BIOS, so we default to 100%. |
| 217 | */ |
| 218 | ahc_outb(ahc, DSPCISTATUS, DFTHRSH_100); |
| 219 | |
| 220 | if (ahc->flags & AHC_USEDEFAULTS) { |
| 221 | int our_id; |
| 222 | /* |
| 223 | * Assume only one connector and always turn |
| 224 | * on termination. |
| 225 | */ |
| 226 | our_id = AHC_CARDBUS_DEFAULT_SCSI_ID; |
| 227 | sxfrctl1 = STPWEN; |
| 228 | ahc_outb(ahc, SCSICONF, our_id | ENSPCHK | RESET_SCSI); |
| 229 | ahc->our_id = our_id; |
| 230 | } |
| 231 | |
| 232 | printf("%s: aic7860" , ahc_name(ahc)); |
| 233 | |
| 234 | /* |
| 235 | * Record our termination setting for the |
| 236 | * generic initialization routine. |
| 237 | */ |
| 238 | if ((sxfrctl1 & STPWEN) != 0) |
| 239 | ahc->flags |= AHC_TERM_ENB_A; |
| 240 | |
| 241 | if (ahc_init(ahc)) { |
| 242 | ahc_free(ahc); |
| 243 | return; |
| 244 | } |
| 245 | |
| 246 | ahc_attach(ahc); |
| 247 | } |
| 248 | |
| 249 | int |
| 250 | ahc_cardbus_detach(device_t self, int flags) |
| 251 | { |
| 252 | struct ahc_cardbus_softc *csc = device_private(self); |
| 253 | struct ahc_softc *ahc = &csc->sc_ahc; |
| 254 | |
| 255 | int rv; |
| 256 | |
| 257 | rv = ahc_detach(ahc, flags); |
| 258 | if (rv) |
| 259 | return rv; |
| 260 | |
| 261 | if (ahc->ih) { |
| 262 | Cardbus_intr_disestablish(csc->sc_ct, ahc->ih); |
| 263 | ahc->ih = 0; |
| 264 | } |
| 265 | |
| 266 | if (csc->sc_bar != 0) { |
| 267 | Cardbus_mapreg_unmap(csc->sc_ct, csc->sc_bar, |
| 268 | ahc->tag, ahc->bsh, csc->sc_size); |
| 269 | csc->sc_bar = 0; |
| 270 | } |
| 271 | |
| 272 | return (0); |
| 273 | } |
| 274 | |