1// SPDX-License-Identifier: GPL-2.0-only 2/* 3 * Regular cardbus driver ("yenta_socket") 4 * 5 * (C) Copyright 1999, 2000 Linus Torvalds 6 * 7 * Changelog: 8 * Aug 2002: Manfred Spraul <manfred@colorfullife.com> 9 * Dynamically adjust the size of the bridge resource 10 * 11 * May 2003: Dominik Brodowski <linux@brodo.de> 12 * Merge pci_socket.c and yenta.c into one file 13 */ 14#include <linux/init.h> 15#include <linux/pci.h> 16#include <linux/workqueue.h> 17#include <linux/interrupt.h> 18#include <linux/delay.h> 19#include <linux/module.h> 20#include <linux/io.h> 21#include <linux/slab.h> 22 23#include <pcmcia/ss.h> 24 25#include "yenta_socket.h" 26#include "i82365.h" 27 28static bool disable_clkrun; 29module_param(disable_clkrun, bool, 0444); 30MODULE_PARM_DESC(disable_clkrun, 31 "If PC card doesn't function properly, please try this option (TI and Ricoh bridges only)"); 32 33static bool isa_probe = 1; 34module_param(isa_probe, bool, 0444); 35MODULE_PARM_DESC(isa_probe, "If set ISA interrupts are probed (default). Set to N to disable probing"); 36 37static bool pwr_irqs_off; 38module_param(pwr_irqs_off, bool, 0644); 39MODULE_PARM_DESC(pwr_irqs_off, "Force IRQs off during power-on of slot. Use only when seeing IRQ storms!"); 40 41static char o2_speedup[] = "default"; 42module_param_string(o2_speedup, o2_speedup, sizeof(o2_speedup), 0444); 43MODULE_PARM_DESC(o2_speedup, "Use prefetch/burst for O2-bridges: 'on', 'off' " 44 "or 'default' (uses recommended behaviour for the detected bridge)"); 45 46/* 47 * Only probe "regular" interrupts, don't 48 * touch dangerous spots like the mouse irq, 49 * because there are mice that apparently 50 * get really confused if they get fondled 51 * too intimately. 52 * 53 * Default to 11, 10, 9, 7, 6, 5, 4, 3. 54 */ 55static u32 isa_interrupts = 0x0ef8; 56 57 58#define debug(x, s, args...) dev_dbg(&s->dev->dev, x, ##args) 59 60/* Don't ask.. */ 61#define to_cycles(ns) ((ns)/120) 62#define to_ns(cycles) ((cycles)*120) 63 64/* 65 * yenta PCI irq probing. 66 * currently only used in the TI/EnE initialization code 67 */ 68#ifdef CONFIG_YENTA_TI 69static int yenta_probe_cb_irq(struct yenta_socket *socket); 70static unsigned int yenta_probe_irq(struct yenta_socket *socket, 71 u32 isa_irq_mask); 72#endif 73 74 75static unsigned int override_bios; 76module_param(override_bios, uint, 0000); 77MODULE_PARM_DESC(override_bios, "yenta ignore bios resource allocation"); 78 79/* 80 * Generate easy-to-use ways of reading a cardbus sockets 81 * regular memory space ("cb_xxx"), configuration space 82 * ("config_xxx") and compatibility space ("exca_xxxx") 83 */ 84static inline u32 cb_readl(struct yenta_socket *socket, unsigned reg) 85{ 86 u32 val = readl(socket->base + reg); 87 debug("%04x %08x\n", socket, reg, val); 88 return val; 89} 90 91static inline void cb_writel(struct yenta_socket *socket, unsigned reg, u32 val) 92{ 93 debug("%04x %08x\n", socket, reg, val); 94 writel(val, socket->base + reg); 95 readl(socket->base + reg); /* avoid problems with PCI write posting */ 96} 97 98static inline u8 config_readb(struct yenta_socket *socket, unsigned offset) 99{ 100 u8 val; 101 pci_read_config_byte(socket->dev, offset, &val); 102 debug("%04x %02x\n", socket, offset, val); 103 return val; 104} 105 106static inline u16 config_readw(struct yenta_socket *socket, unsigned offset) 107{ 108 u16 val; 109 pci_read_config_word(socket->dev, offset, &val); 110 debug("%04x %04x\n", socket, offset, val); 111 return val; 112} 113 114static inline u32 config_readl(struct yenta_socket *socket, unsigned offset) 115{ 116 u32 val; 117 pci_read_config_dword(socket->dev, offset, &val); 118 debug("%04x %08x\n", socket, offset, val); 119 return val; 120} 121 122static inline void config_writeb(struct yenta_socket *socket, unsigned offset, u8 val) 123{ 124 debug("%04x %02x\n", socket, offset, val); 125 pci_write_config_byte(socket->dev, offset, val); 126} 127 128static inline void config_writew(struct yenta_socket *socket, unsigned offset, u16 val) 129{ 130 debug("%04x %04x\n", socket, offset, val); 131 pci_write_config_word(socket->dev, offset, val); 132} 133 134static inline void config_writel(struct yenta_socket *socket, unsigned offset, u32 val) 135{ 136 debug("%04x %08x\n", socket, offset, val); 137 pci_write_config_dword(socket->dev, offset, val); 138} 139 140static inline u8 exca_readb(struct yenta_socket *socket, unsigned reg) 141{ 142 u8 val = readb(socket->base + 0x800 + reg); 143 debug("%04x %02x\n", socket, reg, val); 144 return val; 145} 146 147/* 148static inline u8 exca_readw(struct yenta_socket *socket, unsigned reg) 149{ 150 u16 val; 151 val = readb(socket->base + 0x800 + reg); 152 val |= readb(socket->base + 0x800 + reg + 1) << 8; 153 debug("%04x %04x\n", socket, reg, val); 154 return val; 155} 156*/ 157 158static inline void exca_writeb(struct yenta_socket *socket, unsigned reg, u8 val) 159{ 160 debug("%04x %02x\n", socket, reg, val); 161 writeb(val, socket->base + 0x800 + reg); 162 readb(socket->base + 0x800 + reg); /* PCI write posting... */ 163} 164 165static void exca_writew(struct yenta_socket *socket, unsigned reg, u16 val) 166{ 167 debug("%04x %04x\n", socket, reg, val); 168 writeb(val, socket->base + 0x800 + reg); 169 writeb(val >> 8, socket->base + 0x800 + reg + 1); 170 171 /* PCI write posting... */ 172 readb(socket->base + 0x800 + reg); 173 readb(socket->base + 0x800 + reg + 1); 174} 175 176static ssize_t show_yenta_registers(struct device *yentadev, struct device_attribute *attr, char *buf) 177{ 178 struct yenta_socket *socket = dev_get_drvdata(yentadev); 179 int offset = 0, i; 180 181 offset = sysfs_emit(buf, "CB registers:"); 182 for (i = 0; i < 0x24; i += 4) { 183 unsigned val; 184 if (!(i & 15)) 185 offset += sysfs_emit_at(buf, offset, "\n%02x:", i); 186 val = cb_readl(socket, i); 187 offset += sysfs_emit_at(buf, offset, " %08x", val); 188 } 189 190 offset += sysfs_emit_at(buf, offset, "\n\nExCA registers:"); 191 for (i = 0; i < 0x45; i++) { 192 unsigned char val; 193 if (!(i & 7)) { 194 if (i & 8) { 195 memcpy(buf + offset, " -", 2); 196 offset += 2; 197 } else 198 offset += sysfs_emit_at(buf, offset, "\n%02x:", i); 199 } 200 val = exca_readb(socket, i); 201 offset += sysfs_emit_at(buf, offset, " %02x", val); 202 } 203 sysfs_emit_at(buf, offset, "\n"); 204 return offset; 205} 206 207static DEVICE_ATTR(yenta_registers, S_IRUSR, show_yenta_registers, NULL); 208 209/* 210 * Ugh, mixed-mode cardbus and 16-bit pccard state: things depend 211 * on what kind of card is inserted.. 212 */ 213static int yenta_get_status(struct pcmcia_socket *sock, unsigned int *value) 214{ 215 struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket); 216 unsigned int val; 217 u32 state = cb_readl(socket, CB_SOCKET_STATE); 218 219 val = (state & CB_3VCARD) ? SS_3VCARD : 0; 220 val |= (state & CB_XVCARD) ? SS_XVCARD : 0; 221 val |= (state & (CB_5VCARD | CB_3VCARD | CB_XVCARD | CB_YVCARD)) ? 0 : SS_PENDING; 222 val |= (state & (CB_CDETECT1 | CB_CDETECT2)) ? SS_PENDING : 0; 223 224 225 if (state & CB_CBCARD) { 226 val |= SS_CARDBUS; 227 val |= (state & CB_CARDSTS) ? SS_STSCHG : 0; 228 val |= (state & (CB_CDETECT1 | CB_CDETECT2)) ? 0 : SS_DETECT; 229 val |= (state & CB_PWRCYCLE) ? SS_POWERON | SS_READY : 0; 230 } else if (state & CB_16BITCARD) { 231 u8 status = exca_readb(socket, I365_STATUS); 232 val |= ((status & I365_CS_DETECT) == I365_CS_DETECT) ? SS_DETECT : 0; 233 if (exca_readb(socket, I365_INTCTL) & I365_PC_IOCARD) { 234 val |= (status & I365_CS_STSCHG) ? 0 : SS_STSCHG; 235 } else { 236 val |= (status & I365_CS_BVD1) ? 0 : SS_BATDEAD; 237 val |= (status & I365_CS_BVD2) ? 0 : SS_BATWARN; 238 } 239 val |= (status & I365_CS_WRPROT) ? SS_WRPROT : 0; 240 val |= (status & I365_CS_READY) ? SS_READY : 0; 241 val |= (status & I365_CS_POWERON) ? SS_POWERON : 0; 242 } 243 244 *value = val; 245 return 0; 246} 247 248static void yenta_set_power(struct yenta_socket *socket, socket_state_t *state) 249{ 250 /* some birdges require to use the ExCA registers to power 16bit cards */ 251 if (!(cb_readl(socket, CB_SOCKET_STATE) & CB_CBCARD) && 252 (socket->flags & YENTA_16BIT_POWER_EXCA)) { 253 u8 reg, old; 254 reg = old = exca_readb(socket, I365_POWER); 255 reg &= ~(I365_VCC_MASK | I365_VPP1_MASK | I365_VPP2_MASK); 256 257 /* i82365SL-DF style */ 258 if (socket->flags & YENTA_16BIT_POWER_DF) { 259 switch (state->Vcc) { 260 case 33: 261 reg |= I365_VCC_3V; 262 break; 263 case 50: 264 reg |= I365_VCC_5V; 265 break; 266 default: 267 reg = 0; 268 break; 269 } 270 switch (state->Vpp) { 271 case 33: 272 case 50: 273 reg |= I365_VPP1_5V; 274 break; 275 case 120: 276 reg |= I365_VPP1_12V; 277 break; 278 } 279 } else { 280 /* i82365SL-B style */ 281 switch (state->Vcc) { 282 case 50: 283 reg |= I365_VCC_5V; 284 break; 285 default: 286 reg = 0; 287 break; 288 } 289 switch (state->Vpp) { 290 case 50: 291 reg |= I365_VPP1_5V | I365_VPP2_5V; 292 break; 293 case 120: 294 reg |= I365_VPP1_12V | I365_VPP2_12V; 295 break; 296 } 297 } 298 299 if (reg != old) 300 exca_writeb(socket, I365_POWER, reg); 301 } else { 302 u32 reg = 0; /* CB_SC_STPCLK? */ 303 switch (state->Vcc) { 304 case 33: 305 reg = CB_SC_VCC_3V; 306 break; 307 case 50: 308 reg = CB_SC_VCC_5V; 309 break; 310 default: 311 reg = 0; 312 break; 313 } 314 switch (state->Vpp) { 315 case 33: 316 reg |= CB_SC_VPP_3V; 317 break; 318 case 50: 319 reg |= CB_SC_VPP_5V; 320 break; 321 case 120: 322 reg |= CB_SC_VPP_12V; 323 break; 324 } 325 if (reg != cb_readl(socket, CB_SOCKET_CONTROL)) 326 cb_writel(socket, CB_SOCKET_CONTROL, reg); 327 } 328} 329 330static int yenta_set_socket(struct pcmcia_socket *sock, socket_state_t *state) 331{ 332 struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket); 333 u16 bridge; 334 335 /* if powering down: do it immediately */ 336 if (state->Vcc == 0) 337 yenta_set_power(socket, state); 338 339 socket->io_irq = state->io_irq; 340 bridge = config_readw(socket, CB_BRIDGE_CONTROL) & ~(CB_BRIDGE_CRST | CB_BRIDGE_INTR); 341 if (cb_readl(socket, CB_SOCKET_STATE) & CB_CBCARD) { 342 u8 intr; 343 bridge |= (state->flags & SS_RESET) ? CB_BRIDGE_CRST : 0; 344 345 /* ISA interrupt control? */ 346 intr = exca_readb(socket, I365_INTCTL); 347 intr = (intr & ~0xf); 348 if (!socket->dev->irq) { 349 intr |= socket->cb_irq ? socket->cb_irq : state->io_irq; 350 bridge |= CB_BRIDGE_INTR; 351 } 352 exca_writeb(socket, I365_INTCTL, intr); 353 } else { 354 u8 reg; 355 356 reg = exca_readb(socket, I365_INTCTL) & (I365_RING_ENA | I365_INTR_ENA); 357 reg |= (state->flags & SS_RESET) ? 0 : I365_PC_RESET; 358 reg |= (state->flags & SS_IOCARD) ? I365_PC_IOCARD : 0; 359 if (state->io_irq != socket->dev->irq) { 360 reg |= state->io_irq; 361 bridge |= CB_BRIDGE_INTR; 362 } 363 exca_writeb(socket, I365_INTCTL, reg); 364 365 reg = exca_readb(socket, I365_POWER) & (I365_VCC_MASK|I365_VPP1_MASK); 366 reg |= I365_PWR_NORESET; 367 if (state->flags & SS_PWR_AUTO) 368 reg |= I365_PWR_AUTO; 369 if (state->flags & SS_OUTPUT_ENA) 370 reg |= I365_PWR_OUT; 371 if (exca_readb(socket, I365_POWER) != reg) 372 exca_writeb(socket, I365_POWER, reg); 373 374 /* CSC interrupt: no ISA irq for CSC */ 375 reg = exca_readb(socket, I365_CSCINT); 376 reg &= I365_CSC_IRQ_MASK; 377 reg |= I365_CSC_DETECT; 378 if (state->flags & SS_IOCARD) { 379 if (state->csc_mask & SS_STSCHG) 380 reg |= I365_CSC_STSCHG; 381 } else { 382 if (state->csc_mask & SS_BATDEAD) 383 reg |= I365_CSC_BVD1; 384 if (state->csc_mask & SS_BATWARN) 385 reg |= I365_CSC_BVD2; 386 if (state->csc_mask & SS_READY) 387 reg |= I365_CSC_READY; 388 } 389 exca_writeb(socket, I365_CSCINT, reg); 390 exca_readb(socket, I365_CSC); 391 if (sock->zoom_video) 392 sock->zoom_video(sock, state->flags & SS_ZVCARD); 393 } 394 config_writew(socket, CB_BRIDGE_CONTROL, bridge); 395 /* Socket event mask: get card insert/remove events.. */ 396 cb_writel(socket, CB_SOCKET_EVENT, -1); 397 cb_writel(socket, CB_SOCKET_MASK, CB_CDMASK); 398 399 /* if powering up: do it as the last step when the socket is configured */ 400 if (state->Vcc != 0) 401 yenta_set_power(socket, state); 402 return 0; 403} 404 405static int yenta_set_io_map(struct pcmcia_socket *sock, struct pccard_io_map *io) 406{ 407 struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket); 408 int map; 409 unsigned char ioctl, addr, enable; 410 411 map = io->map; 412 413 if (map > 1) 414 return -EINVAL; 415 416 enable = I365_ENA_IO(map); 417 addr = exca_readb(socket, I365_ADDRWIN); 418 419 /* Disable the window before changing it.. */ 420 if (addr & enable) { 421 addr &= ~enable; 422 exca_writeb(socket, I365_ADDRWIN, addr); 423 } 424 425 exca_writew(socket, I365_IO(map)+I365_W_START, io->start); 426 exca_writew(socket, I365_IO(map)+I365_W_STOP, io->stop); 427 428 ioctl = exca_readb(socket, I365_IOCTL) & ~I365_IOCTL_MASK(map); 429 if (io->flags & MAP_0WS) 430 ioctl |= I365_IOCTL_0WS(map); 431 if (io->flags & MAP_16BIT) 432 ioctl |= I365_IOCTL_16BIT(map); 433 if (io->flags & MAP_AUTOSZ) 434 ioctl |= I365_IOCTL_IOCS16(map); 435 exca_writeb(socket, I365_IOCTL, ioctl); 436 437 if (io->flags & MAP_ACTIVE) 438 exca_writeb(socket, I365_ADDRWIN, addr | enable); 439 return 0; 440} 441 442static int yenta_set_mem_map(struct pcmcia_socket *sock, struct pccard_mem_map *mem) 443{ 444 struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket); 445 struct pci_bus_region region; 446 int map; 447 unsigned char addr, enable; 448 unsigned int start, stop, card_start; 449 unsigned short word; 450 451 pcibios_resource_to_bus(socket->dev->bus, ®ion, mem->res); 452 453 map = mem->map; 454 start = region.start; 455 stop = region.end; 456 card_start = mem->card_start; 457 458 if (map > 4 || start > stop || ((start ^ stop) >> 24) || 459 (card_start >> 26) || mem->speed > 1000) 460 return -EINVAL; 461 462 enable = I365_ENA_MEM(map); 463 addr = exca_readb(socket, I365_ADDRWIN); 464 if (addr & enable) { 465 addr &= ~enable; 466 exca_writeb(socket, I365_ADDRWIN, addr); 467 } 468 469 exca_writeb(socket, CB_MEM_PAGE(map), start >> 24); 470 471 word = (start >> 12) & 0x0fff; 472 if (mem->flags & MAP_16BIT) 473 word |= I365_MEM_16BIT; 474 if (mem->flags & MAP_0WS) 475 word |= I365_MEM_0WS; 476 exca_writew(socket, I365_MEM(map) + I365_W_START, word); 477 478 word = (stop >> 12) & 0x0fff; 479 switch (to_cycles(mem->speed)) { 480 case 0: 481 break; 482 case 1: 483 word |= I365_MEM_WS0; 484 break; 485 case 2: 486 word |= I365_MEM_WS1; 487 break; 488 default: 489 word |= I365_MEM_WS1 | I365_MEM_WS0; 490 break; 491 } 492 exca_writew(socket, I365_MEM(map) + I365_W_STOP, word); 493 494 word = ((card_start - start) >> 12) & 0x3fff; 495 if (mem->flags & MAP_WRPROT) 496 word |= I365_MEM_WRPROT; 497 if (mem->flags & MAP_ATTRIB) 498 word |= I365_MEM_REG; 499 exca_writew(socket, I365_MEM(map) + I365_W_OFF, word); 500 501 if (mem->flags & MAP_ACTIVE) 502 exca_writeb(socket, I365_ADDRWIN, addr | enable); 503 return 0; 504} 505 506 507 508static irqreturn_t yenta_interrupt(int irq, void *dev_id) 509{ 510 unsigned int events; 511 struct yenta_socket *socket = (struct yenta_socket *) dev_id; 512 u8 csc; 513 u32 cb_event; 514 515 /* Clear interrupt status for the event */ 516 cb_event = cb_readl(socket, CB_SOCKET_EVENT); 517 cb_writel(socket, CB_SOCKET_EVENT, cb_event); 518 519 csc = exca_readb(socket, I365_CSC); 520 521 if (!(cb_event || csc)) 522 return IRQ_NONE; 523 524 events = (cb_event & (CB_CD1EVENT | CB_CD2EVENT)) ? SS_DETECT : 0 ; 525 events |= (csc & I365_CSC_DETECT) ? SS_DETECT : 0; 526 if (exca_readb(socket, I365_INTCTL) & I365_PC_IOCARD) { 527 events |= (csc & I365_CSC_STSCHG) ? SS_STSCHG : 0; 528 } else { 529 events |= (csc & I365_CSC_BVD1) ? SS_BATDEAD : 0; 530 events |= (csc & I365_CSC_BVD2) ? SS_BATWARN : 0; 531 events |= (csc & I365_CSC_READY) ? SS_READY : 0; 532 } 533 534 if (events) 535 pcmcia_parse_events(&socket->socket, events); 536 537 return IRQ_HANDLED; 538} 539 540static void yenta_interrupt_wrapper(struct timer_list *t) 541{ 542 struct yenta_socket *socket = from_timer(socket, t, poll_timer); 543 544 yenta_interrupt(0, (void *)socket); 545 socket->poll_timer.expires = jiffies + HZ; 546 add_timer(&socket->poll_timer); 547} 548 549static void yenta_clear_maps(struct yenta_socket *socket) 550{ 551 int i; 552 struct resource res = { .start = 0, .end = 0x0fff }; 553 pccard_io_map io = { 0, 0, 0, 0, 1 }; 554 pccard_mem_map mem = { .res = &res, }; 555 556 yenta_set_socket(&socket->socket, &dead_socket); 557 for (i = 0; i < 2; i++) { 558 io.map = i; 559 yenta_set_io_map(&socket->socket, &io); 560 } 561 for (i = 0; i < 5; i++) { 562 mem.map = i; 563 yenta_set_mem_map(&socket->socket, &mem); 564 } 565} 566 567/* redoes voltage interrogation if required */ 568static void yenta_interrogate(struct yenta_socket *socket) 569{ 570 u32 state; 571 572 state = cb_readl(socket, CB_SOCKET_STATE); 573 if (!(state & (CB_5VCARD | CB_3VCARD | CB_XVCARD | CB_YVCARD)) || 574 (state & (CB_CDETECT1 | CB_CDETECT2 | CB_NOTACARD | CB_BADVCCREQ)) || 575 ((state & (CB_16BITCARD | CB_CBCARD)) == (CB_16BITCARD | CB_CBCARD))) 576 cb_writel(socket, CB_SOCKET_FORCE, CB_CVSTEST); 577} 578 579/* Called at resume and initialization events */ 580static int yenta_sock_init(struct pcmcia_socket *sock) 581{ 582 struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket); 583 584 exca_writeb(socket, I365_GBLCTL, 0x00); 585 exca_writeb(socket, I365_GENCTL, 0x00); 586 587 /* Redo card voltage interrogation */ 588 yenta_interrogate(socket); 589 590 yenta_clear_maps(socket); 591 592 if (socket->type && socket->type->sock_init) 593 socket->type->sock_init(socket); 594 595 /* Re-enable CSC interrupts */ 596 cb_writel(socket, CB_SOCKET_MASK, CB_CDMASK); 597 598 return 0; 599} 600 601static int yenta_sock_suspend(struct pcmcia_socket *sock) 602{ 603 struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket); 604 605 /* Disable CSC interrupts */ 606 cb_writel(socket, CB_SOCKET_MASK, 0x0); 607 608 return 0; 609} 610 611/* 612 * Use an adaptive allocation for the memory resource, 613 * sometimes the memory behind pci bridges is limited: 614 * 1/8 of the size of the io window of the parent. 615 * max 4 MB, min 16 kB. We try very hard to not get below 616 * the "ACC" values, though. 617 */ 618#define BRIDGE_MEM_MAX (4*1024*1024) 619#define BRIDGE_MEM_ACC (128*1024) 620#define BRIDGE_MEM_MIN (16*1024) 621 622#define BRIDGE_IO_MAX 512 623#define BRIDGE_IO_ACC 256 624#define BRIDGE_IO_MIN 32 625 626#ifndef PCIBIOS_MIN_CARDBUS_IO 627#define PCIBIOS_MIN_CARDBUS_IO PCIBIOS_MIN_IO 628#endif 629 630static int yenta_search_one_res(struct resource *root, struct resource *res, 631 u32 min) 632{ 633 u32 align, size, start, end; 634 635 if (res->flags & IORESOURCE_IO) { 636 align = 1024; 637 size = BRIDGE_IO_MAX; 638 start = PCIBIOS_MIN_CARDBUS_IO; 639 end = ~0U; 640 } else { 641 unsigned long avail = root->end - root->start; 642 int i; 643 size = BRIDGE_MEM_MAX; 644 if (size > avail/8) { 645 size = (avail+1)/8; 646 /* round size down to next power of 2 */ 647 i = 0; 648 while ((size /= 2) != 0) 649 i++; 650 size = 1 << i; 651 } 652 if (size < min) 653 size = min; 654 align = size; 655 start = PCIBIOS_MIN_MEM; 656 end = ~0U; 657 } 658 659 do { 660 if (allocate_resource(root, res, size, start, end, align, 661 NULL, NULL) == 0) { 662 return 1; 663 } 664 size = size/2; 665 align = size; 666 } while (size >= min); 667 668 return 0; 669} 670 671 672static int yenta_search_res(struct yenta_socket *socket, struct resource *res, 673 u32 min) 674{ 675 struct resource *root; 676 int i; 677 678 pci_bus_for_each_resource(socket->dev->bus, root, i) { 679 if (!root) 680 continue; 681 682 if ((res->flags ^ root->flags) & 683 (IORESOURCE_IO | IORESOURCE_MEM | IORESOURCE_PREFETCH)) 684 continue; /* Wrong type */ 685 686 if (yenta_search_one_res(root, res, min)) 687 return 1; 688 } 689 return 0; 690} 691 692static int yenta_allocate_res(struct yenta_socket *socket, int nr, unsigned type, int addr_start, int addr_end) 693{ 694 struct pci_dev *dev = socket->dev; 695 struct resource *res; 696 struct pci_bus_region region; 697 unsigned mask; 698 699 res = &dev->resource[nr]; 700 /* Already allocated? */ 701 if (res->parent) 702 return 0; 703 704 /* The granularity of the memory limit is 4kB, on IO it's 4 bytes */ 705 mask = ~0xfff; 706 if (type & IORESOURCE_IO) 707 mask = ~3; 708 709 res->name = dev->subordinate->name; 710 res->flags = type; 711 712 region.start = config_readl(socket, addr_start) & mask; 713 region.end = config_readl(socket, addr_end) | ~mask; 714 if (region.start && region.end > region.start && !override_bios) { 715 pcibios_bus_to_resource(dev->bus, res, ®ion); 716 if (pci_claim_resource(dev, nr) == 0) 717 return 0; 718 dev_info(&dev->dev, 719 "Preassigned resource %d busy or not available, reconfiguring...\n", 720 nr); 721 } 722 723 if (type & IORESOURCE_IO) { 724 if ((yenta_search_res(socket, res, BRIDGE_IO_MAX)) || 725 (yenta_search_res(socket, res, BRIDGE_IO_ACC)) || 726 (yenta_search_res(socket, res, BRIDGE_IO_MIN))) 727 return 1; 728 } else { 729 if (type & IORESOURCE_PREFETCH) { 730 if ((yenta_search_res(socket, res, BRIDGE_MEM_MAX)) || 731 (yenta_search_res(socket, res, BRIDGE_MEM_ACC)) || 732 (yenta_search_res(socket, res, BRIDGE_MEM_MIN))) 733 return 1; 734 /* Approximating prefetchable by non-prefetchable */ 735 res->flags = IORESOURCE_MEM; 736 } 737 if ((yenta_search_res(socket, res, BRIDGE_MEM_MAX)) || 738 (yenta_search_res(socket, res, BRIDGE_MEM_ACC)) || 739 (yenta_search_res(socket, res, BRIDGE_MEM_MIN))) 740 return 1; 741 } 742 743 dev_info(&dev->dev, 744 "no resource of type %x available, trying to continue...\n", 745 type); 746 res->start = res->end = res->flags = 0; 747 return 0; 748} 749 750static void yenta_free_res(struct yenta_socket *socket, int nr) 751{ 752 struct pci_dev *dev = socket->dev; 753 struct resource *res; 754 755 res = &dev->resource[nr]; 756 if (res->start != 0 && res->end != 0) 757 release_resource(res); 758 759 res->start = res->end = res->flags = 0; 760} 761 762/* 763 * Allocate the bridge mappings for the device.. 764 */ 765static void yenta_allocate_resources(struct yenta_socket *socket) 766{ 767 int program = 0; 768 program += yenta_allocate_res(socket, PCI_CB_BRIDGE_IO_0_WINDOW, 769 IORESOURCE_IO, 770 PCI_CB_IO_BASE_0, PCI_CB_IO_LIMIT_0); 771 program += yenta_allocate_res(socket, PCI_CB_BRIDGE_IO_1_WINDOW, 772 IORESOURCE_IO, 773 PCI_CB_IO_BASE_1, PCI_CB_IO_LIMIT_1); 774 program += yenta_allocate_res(socket, PCI_CB_BRIDGE_MEM_0_WINDOW, 775 IORESOURCE_MEM | IORESOURCE_PREFETCH, 776 PCI_CB_MEMORY_BASE_0, PCI_CB_MEMORY_LIMIT_0); 777 program += yenta_allocate_res(socket, PCI_CB_BRIDGE_MEM_1_WINDOW, 778 IORESOURCE_MEM, 779 PCI_CB_MEMORY_BASE_1, PCI_CB_MEMORY_LIMIT_1); 780 if (program) 781 pci_setup_cardbus(socket->dev->subordinate); 782} 783 784 785/* 786 * Free the bridge mappings for the device.. 787 */ 788static void yenta_free_resources(struct yenta_socket *socket) 789{ 790 yenta_free_res(socket, PCI_CB_BRIDGE_IO_0_WINDOW); 791 yenta_free_res(socket, PCI_CB_BRIDGE_IO_1_WINDOW); 792 yenta_free_res(socket, PCI_CB_BRIDGE_MEM_0_WINDOW); 793 yenta_free_res(socket, PCI_CB_BRIDGE_MEM_1_WINDOW); 794} 795 796 797/* 798 * Close it down - release our resources and go home.. 799 */ 800static void yenta_close(struct pci_dev *dev) 801{ 802 struct yenta_socket *sock = pci_get_drvdata(dev); 803 804 /* Remove the register attributes */ 805 device_remove_file(&dev->dev, &dev_attr_yenta_registers); 806 807 /* we don't want a dying socket registered */ 808 pcmcia_unregister_socket(&sock->socket); 809 810 /* Disable all events so we don't die in an IRQ storm */ 811 cb_writel(sock, CB_SOCKET_MASK, 0x0); 812 exca_writeb(sock, I365_CSCINT, 0); 813 814 if (sock->cb_irq) 815 free_irq(sock->cb_irq, sock); 816 else 817 timer_shutdown_sync(&sock->poll_timer); 818 819 iounmap(sock->base); 820 yenta_free_resources(sock); 821 822 pci_release_regions(dev); 823 pci_disable_device(dev); 824 pci_set_drvdata(dev, NULL); 825 kfree(sock); 826} 827 828 829static struct pccard_operations yenta_socket_operations = { 830 .init = yenta_sock_init, 831 .suspend = yenta_sock_suspend, 832 .get_status = yenta_get_status, 833 .set_socket = yenta_set_socket, 834 .set_io_map = yenta_set_io_map, 835 .set_mem_map = yenta_set_mem_map, 836}; 837 838 839#ifdef CONFIG_YENTA_TI 840#include "ti113x.h" 841#endif 842#ifdef CONFIG_YENTA_RICOH 843#include "ricoh.h" 844#endif 845#ifdef CONFIG_YENTA_TOSHIBA 846#include "topic.h" 847#endif 848#ifdef CONFIG_YENTA_O2 849#include "o2micro.h" 850#endif 851 852enum { 853 CARDBUS_TYPE_DEFAULT = -1, 854 CARDBUS_TYPE_TI, 855 CARDBUS_TYPE_TI113X, 856 CARDBUS_TYPE_TI12XX, 857 CARDBUS_TYPE_TI1250, 858 CARDBUS_TYPE_RICOH, 859 CARDBUS_TYPE_TOPIC95, 860 CARDBUS_TYPE_TOPIC97, 861 CARDBUS_TYPE_O2MICRO, 862 CARDBUS_TYPE_ENE, 863}; 864 865/* 866 * Different cardbus controllers have slightly different 867 * initialization sequences etc details. List them here.. 868 */ 869static struct cardbus_type cardbus_type[] = { 870#ifdef CONFIG_YENTA_TI 871 [CARDBUS_TYPE_TI] = { 872 .override = ti_override, 873 .save_state = ti_save_state, 874 .restore_state = ti_restore_state, 875 .sock_init = ti_init, 876 }, 877 [CARDBUS_TYPE_TI113X] = { 878 .override = ti113x_override, 879 .save_state = ti_save_state, 880 .restore_state = ti_restore_state, 881 .sock_init = ti_init, 882 }, 883 [CARDBUS_TYPE_TI12XX] = { 884 .override = ti12xx_override, 885 .save_state = ti_save_state, 886 .restore_state = ti_restore_state, 887 .sock_init = ti_init, 888 }, 889 [CARDBUS_TYPE_TI1250] = { 890 .override = ti1250_override, 891 .save_state = ti_save_state, 892 .restore_state = ti_restore_state, 893 .sock_init = ti_init, 894 }, 895 [CARDBUS_TYPE_ENE] = { 896 .override = ene_override, 897 .save_state = ti_save_state, 898 .restore_state = ti_restore_state, 899 .sock_init = ti_init, 900 }, 901#endif 902#ifdef CONFIG_YENTA_RICOH 903 [CARDBUS_TYPE_RICOH] = { 904 .override = ricoh_override, 905 .save_state = ricoh_save_state, 906 .restore_state = ricoh_restore_state, 907 }, 908#endif 909#ifdef CONFIG_YENTA_TOSHIBA 910 [CARDBUS_TYPE_TOPIC95] = { 911 .override = topic95_override, 912 }, 913 [CARDBUS_TYPE_TOPIC97] = { 914 .override = topic97_override, 915 }, 916#endif 917#ifdef CONFIG_YENTA_O2 918 [CARDBUS_TYPE_O2MICRO] = { 919 .override = o2micro_override, 920 .restore_state = o2micro_restore_state, 921 }, 922#endif 923}; 924 925 926static unsigned int yenta_probe_irq(struct yenta_socket *socket, u32 isa_irq_mask) 927{ 928 int i; 929 unsigned long val; 930 u32 mask; 931 u8 reg; 932 933 /* 934 * Probe for usable interrupts using the force 935 * register to generate bogus card status events. 936 */ 937 cb_writel(socket, CB_SOCKET_EVENT, -1); 938 cb_writel(socket, CB_SOCKET_MASK, CB_CSTSMASK); 939 reg = exca_readb(socket, I365_CSCINT); 940 exca_writeb(socket, I365_CSCINT, 0); 941 val = probe_irq_on() & isa_irq_mask; 942 for (i = 1; i < 16; i++) { 943 if (!((val >> i) & 1)) 944 continue; 945 exca_writeb(socket, I365_CSCINT, I365_CSC_STSCHG | (i << 4)); 946 cb_writel(socket, CB_SOCKET_FORCE, CB_FCARDSTS); 947 udelay(100); 948 cb_writel(socket, CB_SOCKET_EVENT, -1); 949 } 950 cb_writel(socket, CB_SOCKET_MASK, 0); 951 exca_writeb(socket, I365_CSCINT, reg); 952 953 mask = probe_irq_mask(val) & 0xffff; 954 955 return mask; 956} 957 958 959/* 960 * yenta PCI irq probing. 961 * currently only used in the TI/EnE initialization code 962 */ 963#ifdef CONFIG_YENTA_TI 964 965/* interrupt handler, only used during probing */ 966static irqreturn_t yenta_probe_handler(int irq, void *dev_id) 967{ 968 struct yenta_socket *socket = (struct yenta_socket *) dev_id; 969 u8 csc; 970 u32 cb_event; 971 972 /* Clear interrupt status for the event */ 973 cb_event = cb_readl(socket, CB_SOCKET_EVENT); 974 cb_writel(socket, CB_SOCKET_EVENT, -1); 975 csc = exca_readb(socket, I365_CSC); 976 977 if (cb_event || csc) { 978 socket->probe_status = 1; 979 return IRQ_HANDLED; 980 } 981 982 return IRQ_NONE; 983} 984 985/* probes the PCI interrupt, use only on override functions */ 986static int yenta_probe_cb_irq(struct yenta_socket *socket) 987{ 988 u8 reg = 0; 989 990 if (!socket->cb_irq) 991 return -1; 992 993 socket->probe_status = 0; 994 995 if (request_irq(socket->cb_irq, yenta_probe_handler, IRQF_SHARED, "yenta", socket)) { 996 dev_warn(&socket->dev->dev, 997 "request_irq() in yenta_probe_cb_irq() failed!\n"); 998 return -1; 999 } 1000 1001 /* generate interrupt, wait */ 1002 if (!socket->dev->irq) 1003 reg = exca_readb(socket, I365_CSCINT); 1004 exca_writeb(socket, I365_CSCINT, reg | I365_CSC_STSCHG); 1005 cb_writel(socket, CB_SOCKET_EVENT, -1); 1006 cb_writel(socket, CB_SOCKET_MASK, CB_CSTSMASK); 1007 cb_writel(socket, CB_SOCKET_FORCE, CB_FCARDSTS); 1008 1009 msleep(100); 1010 1011 /* disable interrupts */ 1012 cb_writel(socket, CB_SOCKET_MASK, 0); 1013 exca_writeb(socket, I365_CSCINT, reg); 1014 cb_writel(socket, CB_SOCKET_EVENT, -1); 1015 exca_readb(socket, I365_CSC); 1016 1017 free_irq(socket->cb_irq, socket); 1018 1019 return (int) socket->probe_status; 1020} 1021 1022#endif /* CONFIG_YENTA_TI */ 1023 1024 1025/* 1026 * Set static data that doesn't need re-initializing.. 1027 */ 1028static void yenta_get_socket_capabilities(struct yenta_socket *socket, u32 isa_irq_mask) 1029{ 1030 socket->socket.pci_irq = socket->cb_irq; 1031 if (isa_probe) 1032 socket->socket.irq_mask = yenta_probe_irq(socket, isa_irq_mask); 1033 else 1034 socket->socket.irq_mask = 0; 1035 1036 dev_info(&socket->dev->dev, "ISA IRQ mask 0x%04x, PCI irq %d\n", 1037 socket->socket.irq_mask, socket->cb_irq); 1038} 1039 1040/* 1041 * Initialize the standard cardbus registers 1042 */ 1043static void yenta_config_init(struct yenta_socket *socket) 1044{ 1045 u16 bridge; 1046 struct pci_dev *dev = socket->dev; 1047 struct pci_bus_region region; 1048 1049 pcibios_resource_to_bus(socket->dev->bus, ®ion, &dev->resource[0]); 1050 1051 config_writel(socket, CB_LEGACY_MODE_BASE, 0); 1052 config_writel(socket, PCI_BASE_ADDRESS_0, region.start); 1053 config_writew(socket, PCI_COMMAND, 1054 PCI_COMMAND_IO | 1055 PCI_COMMAND_MEMORY | 1056 PCI_COMMAND_MASTER | 1057 PCI_COMMAND_WAIT); 1058 1059 /* MAGIC NUMBERS! Fixme */ 1060 config_writeb(socket, PCI_CACHE_LINE_SIZE, L1_CACHE_BYTES / 4); 1061 config_writeb(socket, PCI_LATENCY_TIMER, 168); 1062 config_writel(socket, PCI_PRIMARY_BUS, 1063 (176 << 24) | /* sec. latency timer */ 1064 ((unsigned int)dev->subordinate->busn_res.end << 16) | /* subordinate bus */ 1065 ((unsigned int)dev->subordinate->busn_res.start << 8) | /* secondary bus */ 1066 dev->subordinate->primary); /* primary bus */ 1067 1068 /* 1069 * Set up the bridging state: 1070 * - enable write posting. 1071 * - memory window 0 prefetchable, window 1 non-prefetchable 1072 * - PCI interrupts enabled if a PCI interrupt exists.. 1073 */ 1074 bridge = config_readw(socket, CB_BRIDGE_CONTROL); 1075 bridge &= ~(CB_BRIDGE_CRST | CB_BRIDGE_PREFETCH1 | CB_BRIDGE_ISAEN | CB_BRIDGE_VGAEN); 1076 bridge |= CB_BRIDGE_PREFETCH0 | CB_BRIDGE_POSTEN; 1077 config_writew(socket, CB_BRIDGE_CONTROL, bridge); 1078} 1079 1080/** 1081 * yenta_fixup_parent_bridge - Fix subordinate bus# of the parent bridge 1082 * @cardbus_bridge: The PCI bus which the CardBus bridge bridges to 1083 * 1084 * Checks if devices on the bus which the CardBus bridge bridges to would be 1085 * invisible during PCI scans because of a misconfigured subordinate number 1086 * of the parent brige - some BIOSes seem to be too lazy to set it right. 1087 * Does the fixup carefully by checking how far it can go without conflicts. 1088 * See http://bugzilla.kernel.org/show_bug.cgi?id=2944 for more information. 1089 */ 1090static void yenta_fixup_parent_bridge(struct pci_bus *cardbus_bridge) 1091{ 1092 struct pci_bus *sibling; 1093 unsigned char upper_limit; 1094 /* 1095 * We only check and fix the parent bridge: All systems which need 1096 * this fixup that have been reviewed are laptops and the only bridge 1097 * which needed fixing was the parent bridge of the CardBus bridge: 1098 */ 1099 struct pci_bus *bridge_to_fix = cardbus_bridge->parent; 1100 1101 /* Check bus numbers are already set up correctly: */ 1102 if (bridge_to_fix->busn_res.end >= cardbus_bridge->busn_res.end) 1103 return; /* The subordinate number is ok, nothing to do */ 1104 1105 if (!bridge_to_fix->parent) 1106 return; /* Root bridges are ok */ 1107 1108 /* stay within the limits of the bus range of the parent: */ 1109 upper_limit = bridge_to_fix->parent->busn_res.end; 1110 1111 /* check the bus ranges of all sibling bridges to prevent overlap */ 1112 list_for_each_entry(sibling, &bridge_to_fix->parent->children, 1113 node) { 1114 /* 1115 * If the sibling has a higher secondary bus number 1116 * and it's secondary is equal or smaller than our 1117 * current upper limit, set the new upper limit to 1118 * the bus number below the sibling's range: 1119 */ 1120 if (sibling->busn_res.start > bridge_to_fix->busn_res.end 1121 && sibling->busn_res.start <= upper_limit) 1122 upper_limit = sibling->busn_res.start - 1; 1123 } 1124 1125 /* Show that the wanted subordinate number is not possible: */ 1126 if (cardbus_bridge->busn_res.end > upper_limit) 1127 dev_warn(&cardbus_bridge->dev, 1128 "Upper limit for fixing this bridge's parent bridge: #%02x\n", 1129 upper_limit); 1130 1131 /* If we have room to increase the bridge's subordinate number, */ 1132 if (bridge_to_fix->busn_res.end < upper_limit) { 1133 1134 /* use the highest number of the hidden bus, within limits */ 1135 unsigned char subordinate_to_assign = 1136 min_t(int, cardbus_bridge->busn_res.end, upper_limit); 1137 1138 dev_info(&bridge_to_fix->dev, 1139 "Raising subordinate bus# of parent bus (#%02x) from #%02x to #%02x\n", 1140 bridge_to_fix->number, 1141 (int)bridge_to_fix->busn_res.end, 1142 subordinate_to_assign); 1143 1144 /* Save the new subordinate in the bus struct of the bridge */ 1145 bridge_to_fix->busn_res.end = subordinate_to_assign; 1146 1147 /* and update the PCI config space with the new subordinate */ 1148 pci_write_config_byte(bridge_to_fix->self, 1149 PCI_SUBORDINATE_BUS, bridge_to_fix->busn_res.end); 1150 } 1151} 1152 1153/* 1154 * Initialize a cardbus controller. Make sure we have a usable 1155 * interrupt, and that we can map the cardbus area. Fill in the 1156 * socket information structure.. 1157 */ 1158static int yenta_probe(struct pci_dev *dev, const struct pci_device_id *id) 1159{ 1160 struct yenta_socket *socket; 1161 int ret; 1162 1163 /* 1164 * If we failed to assign proper bus numbers for this cardbus 1165 * controller during PCI probe, its subordinate pci_bus is NULL. 1166 * Bail out if so. 1167 */ 1168 if (!dev->subordinate) { 1169 dev_err(&dev->dev, "no bus associated! (try 'pci=assign-busses')\n"); 1170 return -ENODEV; 1171 } 1172 1173 socket = kzalloc(sizeof(struct yenta_socket), GFP_KERNEL); 1174 if (!socket) 1175 return -ENOMEM; 1176 1177 /* prepare pcmcia_socket */ 1178 socket->socket.ops = ¥ta_socket_operations; 1179 socket->socket.resource_ops = &pccard_nonstatic_ops; 1180 socket->socket.dev.parent = &dev->dev; 1181 socket->socket.driver_data = socket; 1182 socket->socket.owner = THIS_MODULE; 1183 socket->socket.features = SS_CAP_PAGE_REGS | SS_CAP_PCCARD; 1184 socket->socket.map_size = 0x1000; 1185 socket->socket.cb_dev = dev; 1186 1187 /* prepare struct yenta_socket */ 1188 socket->dev = dev; 1189 pci_set_drvdata(dev, socket); 1190 1191 /* 1192 * Do some basic sanity checking.. 1193 */ 1194 if (pci_enable_device(dev)) { 1195 ret = -EBUSY; 1196 goto free; 1197 } 1198 1199 ret = pci_request_regions(dev, "yenta_socket"); 1200 if (ret) 1201 goto disable; 1202 1203 if (!pci_resource_start(dev, 0)) { 1204 dev_err(&dev->dev, "No cardbus resource!\n"); 1205 ret = -ENODEV; 1206 goto release; 1207 } 1208 1209 /* 1210 * Ok, start setup.. Map the cardbus registers, 1211 * and request the IRQ. 1212 */ 1213 socket->base = ioremap(pci_resource_start(dev, 0), 0x1000); 1214 if (!socket->base) { 1215 ret = -ENOMEM; 1216 goto release; 1217 } 1218 1219 /* 1220 * report the subsystem vendor and device for help debugging 1221 * the irq stuff... 1222 */ 1223 dev_info(&dev->dev, "CardBus bridge found [%04x:%04x]\n", 1224 dev->subsystem_vendor, dev->subsystem_device); 1225 1226 yenta_config_init(socket); 1227 1228 /* Disable all events */ 1229 cb_writel(socket, CB_SOCKET_MASK, 0x0); 1230 1231 /* Set up the bridge regions.. */ 1232 yenta_allocate_resources(socket); 1233 1234 socket->cb_irq = dev->irq; 1235 1236 /* Do we have special options for the device? */ 1237 if (id->driver_data != CARDBUS_TYPE_DEFAULT && 1238 id->driver_data < ARRAY_SIZE(cardbus_type)) { 1239 socket->type = &cardbus_type[id->driver_data]; 1240 1241 ret = socket->type->override(socket); 1242 if (ret < 0) 1243 goto unmap; 1244 } 1245 1246 /* We must finish initialization here */ 1247 1248 if (!socket->cb_irq || request_irq(socket->cb_irq, yenta_interrupt, IRQF_SHARED, "yenta", socket)) { 1249 /* No IRQ or request_irq failed. Poll */ 1250 socket->cb_irq = 0; /* But zero is a valid IRQ number. */ 1251 timer_setup(&socket->poll_timer, yenta_interrupt_wrapper, 0); 1252 mod_timer(&socket->poll_timer, jiffies + HZ); 1253 dev_info(&dev->dev, 1254 "no PCI IRQ, CardBus support disabled for this socket.\n"); 1255 dev_info(&dev->dev, 1256 "check your BIOS CardBus, BIOS IRQ or ACPI settings.\n"); 1257 } else { 1258 socket->socket.features |= SS_CAP_CARDBUS; 1259 } 1260 1261 /* Figure out what the dang thing can do for the PCMCIA layer... */ 1262 yenta_interrogate(socket); 1263 yenta_get_socket_capabilities(socket, isa_interrupts); 1264 dev_info(&dev->dev, "Socket status: %08x\n", 1265 cb_readl(socket, CB_SOCKET_STATE)); 1266 1267 yenta_fixup_parent_bridge(dev->subordinate); 1268 1269 /* Register it with the pcmcia layer.. */ 1270 ret = pcmcia_register_socket(&socket->socket); 1271 if (ret) 1272 goto free_irq; 1273 1274 /* Add the yenta register attributes */ 1275 ret = device_create_file(&dev->dev, &dev_attr_yenta_registers); 1276 if (ret) 1277 goto unregister_socket; 1278 1279 return ret; 1280 1281 /* error path... */ 1282 unregister_socket: 1283 pcmcia_unregister_socket(&socket->socket); 1284 free_irq: 1285 if (socket->cb_irq) 1286 free_irq(socket->cb_irq, socket); 1287 else 1288 timer_shutdown_sync(&socket->poll_timer); 1289 unmap: 1290 iounmap(socket->base); 1291 yenta_free_resources(socket); 1292 release: 1293 pci_release_regions(dev); 1294 disable: 1295 pci_disable_device(dev); 1296 free: 1297 pci_set_drvdata(dev, NULL); 1298 kfree(socket); 1299 return ret; 1300} 1301 1302#ifdef CONFIG_PM_SLEEP 1303static int yenta_dev_suspend_noirq(struct device *dev) 1304{ 1305 struct pci_dev *pdev = to_pci_dev(dev); 1306 struct yenta_socket *socket = pci_get_drvdata(pdev); 1307 1308 if (!socket) 1309 return 0; 1310 1311 if (socket->type && socket->type->save_state) 1312 socket->type->save_state(socket); 1313 1314 pci_save_state(pdev); 1315 pci_read_config_dword(pdev, 16*4, &socket->saved_state[0]); 1316 pci_read_config_dword(pdev, 17*4, &socket->saved_state[1]); 1317 pci_disable_device(pdev); 1318 1319 return 0; 1320} 1321 1322static int yenta_dev_resume_noirq(struct device *dev) 1323{ 1324 struct pci_dev *pdev = to_pci_dev(dev); 1325 struct yenta_socket *socket = pci_get_drvdata(pdev); 1326 int ret; 1327 1328 if (!socket) 1329 return 0; 1330 1331 pci_write_config_dword(pdev, 16*4, socket->saved_state[0]); 1332 pci_write_config_dword(pdev, 17*4, socket->saved_state[1]); 1333 1334 ret = pci_enable_device(pdev); 1335 if (ret) 1336 return ret; 1337 1338 pci_set_master(pdev); 1339 1340 if (socket->type && socket->type->restore_state) 1341 socket->type->restore_state(socket); 1342 1343 return 0; 1344} 1345 1346static const struct dev_pm_ops yenta_pm_ops = { 1347 SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(yenta_dev_suspend_noirq, yenta_dev_resume_noirq) 1348}; 1349 1350#define YENTA_PM_OPS (¥ta_pm_ops) 1351#else 1352#define YENTA_PM_OPS NULL 1353#endif 1354 1355#define CB_ID(vend, dev, type) \ 1356 { \ 1357 .vendor = vend, \ 1358 .device = dev, \ 1359 .subvendor = PCI_ANY_ID, \ 1360 .subdevice = PCI_ANY_ID, \ 1361 .class = PCI_CLASS_BRIDGE_CARDBUS << 8, \ 1362 .class_mask = ~0, \ 1363 .driver_data = CARDBUS_TYPE_##type, \ 1364 } 1365 1366static const struct pci_device_id yenta_table[] = { 1367 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1031, TI), 1368 1369 /* 1370 * TBD: Check if these TI variants can use more 1371 * advanced overrides instead. (I can't get the 1372 * data sheets for these devices. --rmk) 1373 */ 1374#ifdef CONFIG_YENTA_TI 1375 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1210, TI), 1376 1377 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1130, TI113X), 1378 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1131, TI113X), 1379 1380 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1211, TI12XX), 1381 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1220, TI12XX), 1382 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1221, TI12XX), 1383 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1225, TI12XX), 1384 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1251A, TI12XX), 1385 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1251B, TI12XX), 1386 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1420, TI12XX), 1387 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1450, TI12XX), 1388 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1451A, TI12XX), 1389 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1510, TI12XX), 1390 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1520, TI12XX), 1391 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1620, TI12XX), 1392 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4410, TI12XX), 1393 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4450, TI12XX), 1394 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4451, TI12XX), 1395 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4510, TI12XX), 1396 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4520, TI12XX), 1397 1398 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1250, TI1250), 1399 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1410, TI1250), 1400 1401 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_XX21_XX11, TI12XX), 1402 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_X515, TI12XX), 1403 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_XX12, TI12XX), 1404 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_X420, TI12XX), 1405 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_X620, TI12XX), 1406 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_7410, TI12XX), 1407 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_7510, TI12XX), 1408 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_7610, TI12XX), 1409 1410 CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_710, ENE), 1411 CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_712, ENE), 1412 CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_720, ENE), 1413 CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_722, ENE), 1414 CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1211, ENE), 1415 CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1225, ENE), 1416 CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1410, ENE), 1417 CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1420, ENE), 1418#endif /* CONFIG_YENTA_TI */ 1419 1420#ifdef CONFIG_YENTA_RICOH 1421 CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C465, RICOH), 1422 CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C466, RICOH), 1423 CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C475, RICOH), 1424 CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C476, RICOH), 1425 CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C478, RICOH), 1426#endif 1427 1428#ifdef CONFIG_YENTA_TOSHIBA 1429 CB_ID(PCI_VENDOR_ID_TOSHIBA, PCI_DEVICE_ID_TOSHIBA_TOPIC95, TOPIC95), 1430 CB_ID(PCI_VENDOR_ID_TOSHIBA, PCI_DEVICE_ID_TOSHIBA_TOPIC97, TOPIC97), 1431 CB_ID(PCI_VENDOR_ID_TOSHIBA, PCI_DEVICE_ID_TOSHIBA_TOPIC100, TOPIC97), 1432#endif 1433 1434#ifdef CONFIG_YENTA_O2 1435 CB_ID(PCI_VENDOR_ID_O2, PCI_ANY_ID, O2MICRO), 1436#endif 1437 1438 /* match any cardbus bridge */ 1439 CB_ID(PCI_ANY_ID, PCI_ANY_ID, DEFAULT), 1440 { /* all zeroes */ } 1441}; 1442MODULE_DEVICE_TABLE(pci, yenta_table); 1443 1444 1445static struct pci_driver yenta_cardbus_driver = { 1446 .name = "yenta_cardbus", 1447 .id_table = yenta_table, 1448 .probe = yenta_probe, 1449 .remove = yenta_close, 1450 .driver.pm = YENTA_PM_OPS, 1451}; 1452 1453module_pci_driver(yenta_cardbus_driver); 1454 1455MODULE_LICENSE("GPL"); 1456