adw_pci.c revision 61034
1/* 2 * Device probe and attach routines for the following 3 * Advanced Systems Inc. SCSI controllers: 4 * 5 * ABP[3]940UW - Bus-Master PCI Ultra-Wide (253 CDB) 6 * ABP950UW - Dual Channel Bus-Master PCI Ultra-Wide (253 CDB/Channel) 7 * ABP970UW - Bus-Master PCI Ultra-Wide (253 CDB) 8 * ABP3940U2W - Bus-Master PCI LVD/Ultra2-Wide (253 CDB) 9 * ABP3950U2W - Bus-Master PCI LVD/Ultra2-Wide (253 CDB) 10 * 11 * Copyright (c) 1998, 1999, 2000 Justin Gibbs. 12 * All rights reserved. 13 * 14 * Redistribution and use in source and binary forms, with or without 15 * modification, are permitted provided that the following conditions 16 * are met: 17 * 1. Redistributions of source code must retain the above copyright 18 * notice, this list of conditions, and the following disclaimer, 19 * without modification. 20 * 2. The name of the author may not be used to endorse or promote products 21 * derived from this software without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 27 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * $FreeBSD: head/sys/dev/advansys/adw_pci.c 61034 2000-05-28 15:47:00Z peter $ 36 */ 37 38#include <sys/param.h> 39#include <sys/systm.h> 40#include <sys/kernel.h> 41#include <sys/module.h> 42#include <sys/bus.h> 43 44#include <machine/bus_pio.h> 45#include <machine/bus.h> 46#include <machine/resource.h> 47 48#include <sys/rman.h> 49 50#include <pci/pcireg.h> 51#include <pci/pcivar.h> 52 53#include <cam/cam.h> 54#include <cam/scsi/scsi_all.h> 55 56#include <dev/advansys/adwvar.h> 57#include <dev/advansys/adwlib.h> 58#include <dev/advansys/adwmcode.h> 59 60#define ADW_PCI_IOBASE PCIR_MAPS /* I/O Address */ 61#define ADW_PCI_MEMBASE PCIR_MAPS + 4 /* Mem I/O Address */ 62 63#define PCI_ID_ADVANSYS_3550 0x230010CD00000000ull 64#define PCI_ID_ADVANSYS_38C0800_REV1 0x250010CD00000000ull 65#define PCI_ID_ADVANSYS_38C1600_REV1 0x270010CD00000000ull 66#define PCI_ID_ALL_MASK 0xFFFFFFFFFFFFFFFFull 67#define PCI_ID_DEV_VENDOR_MASK 0xFFFFFFFF00000000ull 68 69struct adw_pci_identity; 70typedef int (adw_device_setup_t)(device_t, struct adw_pci_identity *, 71 struct adw_softc *adw); 72 73struct adw_pci_identity { 74 u_int64_t full_id; 75 u_int64_t id_mask; 76 char *name; 77 adw_device_setup_t *setup; 78 const struct adw_mcode *mcode_data; 79 const struct adw_eeprom *default_eeprom; 80}; 81 82static adw_device_setup_t adw_asc3550_setup; 83static adw_device_setup_t adw_asc38C0800_setup; 84#ifdef NOTYET 85static adw_device_setup_t adw_asc38C1600_setup; 86#endif 87 88struct adw_pci_identity adw_pci_ident_table[] = 89{ 90 /* asc3550 based controllers */ 91 { 92 PCI_ID_ADVANSYS_3550, 93 PCI_ID_DEV_VENDOR_MASK, 94 "AdvanSys 3550 Ultra SCSI Adapter", 95 adw_asc3550_setup, 96 &adw_asc3550_mcode_data, 97 &adw_asc3550_default_eeprom 98 }, 99 /* asc38C0800 based controllers */ 100 { 101 PCI_ID_ADVANSYS_38C0800_REV1, 102 PCI_ID_DEV_VENDOR_MASK, 103 "AdvanSys 38C0800 Ultra2 SCSI Adapter", 104 adw_asc38C0800_setup, 105 &adw_asc38C0800_mcode_data, 106 &adw_asc38C0800_default_eeprom 107 }, 108#if NOTYET 109 /* XXX Disabled until I have hardware to test with */ 110 /* asc38C1600 based controllers */ 111 { 112 PCI_ID_ADVANSYS_38C1600_REV1, 113 PCI_ID_DEV_VENDOR_MASK, 114 "AdvanSys 38C1600 Ultra160 SCSI Adapter", 115 adw_asc38C1600_setup, 116 NULL, /* None provided by vendor thus far */ 117 NULL /* None provided by vendor thus far */ 118 } 119#endif 120}; 121 122static const int adw_num_pci_devs = 123 sizeof(adw_pci_ident_table) / sizeof(*adw_pci_ident_table); 124 125#define ADW_PCI_MAX_DMA_ADDR (0xFFFFFFFFUL) 126#define ADW_PCI_MAX_DMA_COUNT (0xFFFFFFFFUL) 127 128static int adw_pci_probe(device_t dev); 129static int adw_pci_attach(device_t dev); 130 131static device_method_t adw_pci_methods[] = { 132 /* Device interface */ 133 DEVMETHOD(device_probe, adw_pci_probe), 134 DEVMETHOD(device_attach, adw_pci_attach), 135 { 0, 0 } 136}; 137 138static driver_t adw_pci_driver = { 139 "adw", 140 adw_pci_methods, 141 sizeof(struct adw_softc) 142}; 143 144static devclass_t adw_devclass; 145 146DRIVER_MODULE(adw, pci, adw_pci_driver, adw_devclass, 0, 0); 147 148static __inline u_int64_t 149adw_compose_id(u_int device, u_int vendor, u_int subdevice, u_int subvendor) 150{ 151 u_int64_t id; 152 153 id = subvendor 154 | (subdevice << 16) 155 | ((u_int64_t)vendor << 32) 156 | ((u_int64_t)device << 48); 157 158 return (id); 159} 160 161static struct adw_pci_identity * 162adw_find_pci_device(device_t dev) 163{ 164 u_int64_t full_id; 165 struct adw_pci_identity *entry; 166 u_int i; 167 168 full_id = adw_compose_id(pci_get_device(dev), 169 pci_get_vendor(dev), 170 pci_get_subdevice(dev), 171 pci_get_subvendor(dev)); 172 173 for (i = 0; i < adw_num_pci_devs; i++) { 174 entry = &adw_pci_ident_table[i]; 175 if (entry->full_id == (full_id & entry->id_mask)) 176 return (entry); 177 } 178 return (NULL); 179} 180 181static int 182adw_pci_probe(device_t dev) 183{ 184 struct adw_pci_identity *entry; 185 186 entry = adw_find_pci_device(dev); 187 if (entry != NULL) { 188 device_set_desc(dev, entry->name); 189 return (0); 190 } 191 return (ENXIO); 192} 193 194static int 195adw_pci_attach(device_t dev) 196{ 197 struct adw_softc *adw; 198 struct adw_pci_identity *entry; 199 u_int32_t command; 200 struct resource *regs; 201 int regs_type; 202 int regs_id; 203 int error; 204 int zero; 205 206 command = pci_read_config(dev, PCIR_COMMAND, /*bytes*/1); 207 entry = adw_find_pci_device(dev); 208 if (entry == NULL) 209 return (ENXIO); 210 regs = NULL; 211 regs_type = 0; 212 regs_id = 0; 213#ifdef ADW_ALLOW_MEMIO 214 if ((command & PCIM_CMD_MEMEN) != 0) { 215 regs_type = SYS_RES_MEMORY; 216 regs_id = ADW_PCI_MEMBASE; 217 regs = bus_alloc_resource(dev, regs_type, 218 ®s_id, 0, ~0, 1, RF_ACTIVE); 219 } 220#endif 221 if (regs == NULL && (command & PCIM_CMD_PORTEN) != 0) { 222 regs_type = SYS_RES_IOPORT; 223 regs_id = ADW_PCI_IOBASE; 224 regs = bus_alloc_resource(dev, regs_type, 225 ®s_id, 0, ~0, 1, RF_ACTIVE); 226 } 227 228 if (regs == NULL) { 229 device_printf(dev, "can't allocate register resources\n"); 230 return (ENOMEM); 231 } 232 233 adw = adw_alloc(dev, regs, regs_type, regs_id); 234 if (adw == NULL) 235 return(ENOMEM); 236 237 /* 238 * Now that we have access to our registers, just verify that 239 * this really is an AdvanSys device. 240 */ 241 if (adw_find_signature(adw) == 0) { 242 adw_free(adw); 243 return (ENXIO); 244 } 245 246 adw_reset_chip(adw); 247 248 error = entry->setup(dev, entry, adw); 249 250 if (error != 0) 251 return (error); 252 253 /* Ensure busmastering is enabled */ 254 command |= PCIM_CMD_BUSMASTEREN; 255 pci_write_config(dev, PCIR_COMMAND, command, /*bytes*/1); 256 257 /* Allocate a dmatag for our transfer DMA maps */ 258 /* XXX Should be a child of the PCI bus dma tag */ 259 error = bus_dma_tag_create(/*parent*/NULL, /*alignment*/1, 260 /*boundary*/0, 261 /*lowaddr*/ADW_PCI_MAX_DMA_ADDR, 262 /*highaddr*/BUS_SPACE_MAXADDR, 263 /*filter*/NULL, /*filterarg*/NULL, 264 /*maxsize*/BUS_SPACE_MAXSIZE_32BIT, 265 /*nsegments*/BUS_SPACE_UNRESTRICTED, 266 /*maxsegsz*/ADW_PCI_MAX_DMA_COUNT, 267 /*flags*/0, 268 &adw->parent_dmat); 269 270 adw->init_level++; 271 272 if (error != 0) { 273 printf("%s: Could not allocate DMA tag - error %d\n", 274 adw_name(adw), error); 275 adw_free(adw); 276 return (error); 277 } 278 279 adw->init_level++; 280 281 error = adw_init(adw); 282 if (error != 0) { 283 adw_free(adw); 284 return (error); 285 } 286 287 /* 288 * If the PCI Configuration Command Register "Parity Error Response 289 * Control" Bit was clear (0), then set the microcode variable 290 * 'control_flag' CONTROL_FLAG_IGNORE_PERR flag to tell the microcode 291 * to ignore DMA parity errors. 292 */ 293 if ((command & PCIM_CMD_PERRESPEN) == 0) 294 adw_lram_write_16(adw, ADW_MC_CONTROL_FLAG, 295 adw_lram_read_16(adw, ADW_MC_CONTROL_FLAG) 296 | ADW_MC_CONTROL_IGN_PERR); 297 298 zero = 0; 299 adw->irq_res_type = SYS_RES_IRQ; 300 adw->irq = bus_alloc_resource(dev, adw->irq_res_type, &zero, 301 0, ~0, 1, RF_ACTIVE | RF_SHAREABLE); 302 if (adw->irq == NULL) { 303 adw_free(adw); 304 return (ENOMEM); 305 } 306 307 error = adw_attach(adw); 308 if (error != 0) 309 adw_free(adw); 310 return (error); 311} 312 313static int 314adw_generic_setup(device_t dev, struct adw_pci_identity *entry, 315 struct adw_softc *adw) 316{ 317 adw->channel = pci_get_function(dev) == 1 ? 'B' : 'A'; 318 adw->chip = ADW_CHIP_NONE; 319 adw->features = ADW_FENONE; 320 adw->flags = ADW_FNONE; 321 adw->mcode_data = entry->mcode_data; 322 adw->default_eeprom = entry->default_eeprom; 323 return (0); 324} 325 326static int 327adw_asc3550_setup(device_t dev, struct adw_pci_identity *entry, 328 struct adw_softc *adw) 329{ 330 int error; 331 332 error = adw_generic_setup(dev, entry, adw); 333 if (error != 0) 334 return (error); 335 adw->chip = ADW_CHIP_ASC3550; 336 adw->features = ADW_ASC3550_FE; 337 adw->memsize = ADW_3550_MEMSIZE; 338 /* 339 * For ASC-3550, setting the START_CTL_EMFU [3:2] bits 340 * sets a FIFO threshold of 128 bytes. This register is 341 * only accessible to the host. 342 */ 343 adw_outb(adw, ADW_DMA_CFG0, 344 ADW_DMA_CFG0_START_CTL_EM_FU|ADW_DMA_CFG0_READ_CMD_MRM); 345 adw_outb(adw, ADW_MEM_CFG, 346 adw_inb(adw, ADW_MEM_CFG) | ADW_MEM_CFG_RAM_SZ_8KB); 347 return (0); 348} 349 350static int 351adw_asc38C0800_setup(device_t dev, struct adw_pci_identity *entry, 352 struct adw_softc *adw) 353{ 354 int error; 355 356 error = adw_generic_setup(dev, entry, adw); 357 if (error != 0) 358 return (error); 359 /* 360 * For ASC-38C0800, set FIFO_THRESH_80B [6:4] bits and 361 * START_CTL_TH [3:2] bits for the default FIFO threshold. 362 * 363 * Note: ASC-38C0800 FIFO threshold has been changed to 256 bytes. 364 * 365 * For DMA Errata #4 set the BC_THRESH_ENB bit. 366 */ 367 adw_outb(adw, ADW_DMA_CFG0, 368 ADW_DMA_CFG0_BC_THRESH_ENB|ADW_DMA_CFG0_FIFO_THRESH_80B 369 |ADW_DMA_CFG0_START_CTL_TH|ADW_DMA_CFG0_READ_CMD_MRM); 370 adw_outb(adw, ADW_MEM_CFG, 371 adw_inb(adw, ADW_MEM_CFG) | ADW_MEM_CFG_RAM_SZ_16KB); 372 adw->chip = ADW_CHIP_ASC38C0800; 373 adw->features = ADW_ASC38C0800_FE; 374 adw->memsize = ADW_38C0800_MEMSIZE; 375 return (error); 376} 377 378#ifdef NOTYET 379static int 380adw_asc38C1600_setup(device_t dev, struct adw_pci_identity *entry, 381 struct adw_softc *adw) 382{ 383 int error; 384 385 error = adw_generic_setup(dev, entry, adw); 386 if (error != 0) 387 return (error); 388 adw->chip = ADW_CHIP_ASC38C1600; 389 adw->features = ADW_ASC38C1600_FE; 390 adw->memsize = ADW_38C1600_MEMSIZE; 391 return (error); 392} 393#endif 394