adw_pci.c revision 127135
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 36#include <sys/cdefs.h> 37__FBSDID("$FreeBSD: head/sys/dev/advansys/adw_pci.c 127135 2004-03-17 17:50:55Z njl $"); 38 39#include <sys/param.h> 40#include <sys/systm.h> 41#include <sys/kernel.h> 42#include <sys/module.h> 43#include <sys/lock.h> 44#include <sys/mutex.h> 45#include <sys/bus.h> 46 47#include <machine/bus_pio.h> 48#include <machine/bus.h> 49#include <machine/resource.h> 50 51#include <sys/rman.h> 52 53#include <dev/pci/pcireg.h> 54#include <dev/pci/pcivar.h> 55 56#include <cam/cam.h> 57#include <cam/scsi/scsi_all.h> 58 59#include <dev/advansys/adwvar.h> 60#include <dev/advansys/adwlib.h> 61#include <dev/advansys/adwmcode.h> 62 63#define ADW_PCI_IOBASE PCIR_BAR(0) /* I/O Address */ 64#define ADW_PCI_MEMBASE PCIR_BAR(1) /* Mem I/O Address */ 65 66#define PCI_ID_ADVANSYS_3550 0x230010CD00000000ull 67#define PCI_ID_ADVANSYS_38C0800_REV1 0x250010CD00000000ull 68#define PCI_ID_ADVANSYS_38C1600_REV1 0x270010CD00000000ull 69#define PCI_ID_ALL_MASK 0xFFFFFFFFFFFFFFFFull 70#define PCI_ID_DEV_VENDOR_MASK 0xFFFFFFFF00000000ull 71 72struct adw_pci_identity; 73typedef int (adw_device_setup_t)(device_t, struct adw_pci_identity *, 74 struct adw_softc *adw); 75 76struct adw_pci_identity { 77 u_int64_t full_id; 78 u_int64_t id_mask; 79 char *name; 80 adw_device_setup_t *setup; 81 const struct adw_mcode *mcode_data; 82 const struct adw_eeprom *default_eeprom; 83}; 84 85static adw_device_setup_t adw_asc3550_setup; 86static adw_device_setup_t adw_asc38C0800_setup; 87#ifdef NOTYET 88static adw_device_setup_t adw_asc38C1600_setup; 89#endif 90 91struct adw_pci_identity adw_pci_ident_table[] = 92{ 93 /* asc3550 based controllers */ 94 { 95 PCI_ID_ADVANSYS_3550, 96 PCI_ID_DEV_VENDOR_MASK, 97 "AdvanSys 3550 Ultra SCSI Adapter", 98 adw_asc3550_setup, 99 &adw_asc3550_mcode_data, 100 &adw_asc3550_default_eeprom 101 }, 102 /* asc38C0800 based controllers */ 103 { 104 PCI_ID_ADVANSYS_38C0800_REV1, 105 PCI_ID_DEV_VENDOR_MASK, 106 "AdvanSys 38C0800 Ultra2 SCSI Adapter", 107 adw_asc38C0800_setup, 108 &adw_asc38C0800_mcode_data, 109 &adw_asc38C0800_default_eeprom 110 }, 111#if NOTYET 112 /* XXX Disabled until I have hardware to test with */ 113 /* asc38C1600 based controllers */ 114 { 115 PCI_ID_ADVANSYS_38C1600_REV1, 116 PCI_ID_DEV_VENDOR_MASK, 117 "AdvanSys 38C1600 Ultra160 SCSI Adapter", 118 adw_asc38C1600_setup, 119 NULL, /* None provided by vendor thus far */ 120 NULL /* None provided by vendor thus far */ 121 } 122#endif 123}; 124 125static const int adw_num_pci_devs = 126 sizeof(adw_pci_ident_table) / sizeof(*adw_pci_ident_table); 127 128#define ADW_PCI_MAX_DMA_ADDR (0xFFFFFFFFUL) 129#define ADW_PCI_MAX_DMA_COUNT (0xFFFFFFFFUL) 130 131static int adw_pci_probe(device_t dev); 132static int adw_pci_attach(device_t dev); 133 134static device_method_t adw_pci_methods[] = { 135 /* Device interface */ 136 DEVMETHOD(device_probe, adw_pci_probe), 137 DEVMETHOD(device_attach, adw_pci_attach), 138 { 0, 0 } 139}; 140 141static driver_t adw_pci_driver = { 142 "adw", 143 adw_pci_methods, 144 sizeof(struct adw_softc) 145}; 146 147static devclass_t adw_devclass; 148 149DRIVER_MODULE(adw, pci, adw_pci_driver, adw_devclass, 0, 0); 150 151static __inline u_int64_t 152adw_compose_id(u_int device, u_int vendor, u_int subdevice, u_int subvendor) 153{ 154 u_int64_t id; 155 156 id = subvendor 157 | (subdevice << 16) 158 | ((u_int64_t)vendor << 32) 159 | ((u_int64_t)device << 48); 160 161 return (id); 162} 163 164static struct adw_pci_identity * 165adw_find_pci_device(device_t dev) 166{ 167 u_int64_t full_id; 168 struct adw_pci_identity *entry; 169 u_int i; 170 171 full_id = adw_compose_id(pci_get_device(dev), 172 pci_get_vendor(dev), 173 pci_get_subdevice(dev), 174 pci_get_subvendor(dev)); 175 176 for (i = 0; i < adw_num_pci_devs; i++) { 177 entry = &adw_pci_ident_table[i]; 178 if (entry->full_id == (full_id & entry->id_mask)) 179 return (entry); 180 } 181 return (NULL); 182} 183 184static int 185adw_pci_probe(device_t dev) 186{ 187 struct adw_pci_identity *entry; 188 189 entry = adw_find_pci_device(dev); 190 if (entry != NULL) { 191 device_set_desc(dev, entry->name); 192 return (0); 193 } 194 return (ENXIO); 195} 196 197static int 198adw_pci_attach(device_t dev) 199{ 200 struct adw_softc *adw; 201 struct adw_pci_identity *entry; 202 u_int32_t command; 203 struct resource *regs; 204 int regs_type; 205 int regs_id; 206 int error; 207 int zero; 208 209 command = pci_read_config(dev, PCIR_COMMAND, /*bytes*/1); 210 entry = adw_find_pci_device(dev); 211 if (entry == NULL) 212 return (ENXIO); 213 regs = NULL; 214 regs_type = 0; 215 regs_id = 0; 216#ifdef ADW_ALLOW_MEMIO 217 if ((command & PCIM_CMD_MEMEN) != 0) { 218 regs_type = SYS_RES_MEMORY; 219 regs_id = ADW_PCI_MEMBASE; 220 regs = bus_alloc_resource_any(dev, regs_type, 221 ®s_id, RF_ACTIVE); 222 } 223#endif 224 if (regs == NULL && (command & PCIM_CMD_PORTEN) != 0) { 225 regs_type = SYS_RES_IOPORT; 226 regs_id = ADW_PCI_IOBASE; 227 regs = bus_alloc_resource_any(dev, regs_type, 228 ®s_id, RF_ACTIVE); 229 } 230 231 if (regs == NULL) { 232 device_printf(dev, "can't allocate register resources\n"); 233 return (ENOMEM); 234 } 235 236 adw = adw_alloc(dev, regs, regs_type, regs_id); 237 if (adw == NULL) 238 return(ENOMEM); 239 240 /* 241 * Now that we have access to our registers, just verify that 242 * this really is an AdvanSys device. 243 */ 244 if (adw_find_signature(adw) == 0) { 245 adw_free(adw); 246 return (ENXIO); 247 } 248 249 adw_reset_chip(adw); 250 251 error = entry->setup(dev, entry, adw); 252 253 if (error != 0) 254 return (error); 255 256 /* Ensure busmastering is enabled */ 257 command |= PCIM_CMD_BUSMASTEREN; 258 pci_write_config(dev, PCIR_COMMAND, command, /*bytes*/1); 259 260 /* Allocate a dmatag for our transfer DMA maps */ 261 /* XXX Should be a child of the PCI bus dma tag */ 262 error = bus_dma_tag_create( 263 /* parent */ NULL, 264 /* alignment */ 1, 265 /* boundary */ 0, 266 /* lowaddr */ ADW_PCI_MAX_DMA_ADDR, 267 /* highaddr */ BUS_SPACE_MAXADDR, 268 /* filter */ NULL, 269 /* filterarg */ NULL, 270 /* maxsize */ BUS_SPACE_MAXSIZE_32BIT, 271 /* nsegments */ ~0, 272 /* maxsegsz */ ADW_PCI_MAX_DMA_COUNT, 273 /* flags */ 0, 274 /* lockfunc */ busdma_lock_mutex, 275 /* lockarg */ &Giant, 276 &adw->parent_dmat); 277 278 adw->init_level++; 279 280 if (error != 0) { 281 printf("%s: Could not allocate DMA tag - error %d\n", 282 adw_name(adw), error); 283 adw_free(adw); 284 return (error); 285 } 286 287 adw->init_level++; 288 289 error = adw_init(adw); 290 if (error != 0) { 291 adw_free(adw); 292 return (error); 293 } 294 295 /* 296 * If the PCI Configuration Command Register "Parity Error Response 297 * Control" Bit was clear (0), then set the microcode variable 298 * 'control_flag' CONTROL_FLAG_IGNORE_PERR flag to tell the microcode 299 * to ignore DMA parity errors. 300 */ 301 if ((command & PCIM_CMD_PERRESPEN) == 0) 302 adw_lram_write_16(adw, ADW_MC_CONTROL_FLAG, 303 adw_lram_read_16(adw, ADW_MC_CONTROL_FLAG) 304 | ADW_MC_CONTROL_IGN_PERR); 305 306 zero = 0; 307 adw->irq_res_type = SYS_RES_IRQ; 308 adw->irq = bus_alloc_resource_any(dev, adw->irq_res_type, &zero, 309 RF_ACTIVE | RF_SHAREABLE); 310 if (adw->irq == NULL) { 311 adw_free(adw); 312 return (ENOMEM); 313 } 314 315 error = adw_attach(adw); 316 if (error != 0) 317 adw_free(adw); 318 return (error); 319} 320 321static int 322adw_generic_setup(device_t dev, struct adw_pci_identity *entry, 323 struct adw_softc *adw) 324{ 325 adw->channel = pci_get_function(dev) == 1 ? 'B' : 'A'; 326 adw->chip = ADW_CHIP_NONE; 327 adw->features = ADW_FENONE; 328 adw->flags = ADW_FNONE; 329 adw->mcode_data = entry->mcode_data; 330 adw->default_eeprom = entry->default_eeprom; 331 return (0); 332} 333 334static int 335adw_asc3550_setup(device_t dev, struct adw_pci_identity *entry, 336 struct adw_softc *adw) 337{ 338 int error; 339 340 error = adw_generic_setup(dev, entry, adw); 341 if (error != 0) 342 return (error); 343 adw->chip = ADW_CHIP_ASC3550; 344 adw->features = ADW_ASC3550_FE; 345 adw->memsize = ADW_3550_MEMSIZE; 346 /* 347 * For ASC-3550, setting the START_CTL_EMFU [3:2] bits 348 * sets a FIFO threshold of 128 bytes. This register is 349 * only accessible to the host. 350 */ 351 adw_outb(adw, ADW_DMA_CFG0, 352 ADW_DMA_CFG0_START_CTL_EM_FU|ADW_DMA_CFG0_READ_CMD_MRM); 353 adw_outb(adw, ADW_MEM_CFG, 354 adw_inb(adw, ADW_MEM_CFG) | ADW_MEM_CFG_RAM_SZ_8KB); 355 return (0); 356} 357 358static int 359adw_asc38C0800_setup(device_t dev, struct adw_pci_identity *entry, 360 struct adw_softc *adw) 361{ 362 int error; 363 364 error = adw_generic_setup(dev, entry, adw); 365 if (error != 0) 366 return (error); 367 /* 368 * For ASC-38C0800, set FIFO_THRESH_80B [6:4] bits and 369 * START_CTL_TH [3:2] bits for the default FIFO threshold. 370 * 371 * Note: ASC-38C0800 FIFO threshold has been changed to 256 bytes. 372 * 373 * For DMA Errata #4 set the BC_THRESH_ENB bit. 374 */ 375 adw_outb(adw, ADW_DMA_CFG0, 376 ADW_DMA_CFG0_BC_THRESH_ENB|ADW_DMA_CFG0_FIFO_THRESH_80B 377 |ADW_DMA_CFG0_START_CTL_TH|ADW_DMA_CFG0_READ_CMD_MRM); 378 adw_outb(adw, ADW_MEM_CFG, 379 adw_inb(adw, ADW_MEM_CFG) | ADW_MEM_CFG_RAM_SZ_16KB); 380 adw->chip = ADW_CHIP_ASC38C0800; 381 adw->features = ADW_ASC38C0800_FE; 382 adw->memsize = ADW_38C0800_MEMSIZE; 383 return (error); 384} 385 386#ifdef NOTYET 387static int 388adw_asc38C1600_setup(device_t dev, struct adw_pci_identity *entry, 389 struct adw_softc *adw) 390{ 391 int error; 392 393 error = adw_generic_setup(dev, entry, adw); 394 if (error != 0) 395 return (error); 396 adw->chip = ADW_CHIP_ASC38C1600; 397 adw->features = ADW_ASC38C1600_FE; 398 adw->memsize = ADW_38C1600_MEMSIZE; 399 return (error); 400} 401#endif 402