1 /* 2 * Regular cardbus driver ("yenta_socket") 3 * 4 * (C) Copyright 1999, 2000 Linus Torvalds 5 * 6 * Changelog: 7 * Aug 2002: Manfred Spraul <manfred@colorfullife.com> 8 * Dynamically adjust the size of the bridge resource 9 * 10 * May 2003: Dominik Brodowski <linux@brodo.de> 11 * Merge pci_socket.c and yenta.c into one file 12 */ 13 #include <linux/init.h> 14 #include <linux/pci.h> 15 #include <linux/workqueue.h> 16 #include <linux/interrupt.h> 17 #include <linux/delay.h> 18 #include <linux/module.h> 19 20 #include <pcmcia/cs_types.h> 21 #include <pcmcia/ss.h> 22 #include <pcmcia/cs.h> 23 24 #include <asm/io.h> 25 26 #include "yenta_socket.h" 27 #include "i82365.h" 28 29 static int disable_clkrun; 30 module_param(disable_clkrun, bool, 0444); 31 MODULE_PARM_DESC(disable_clkrun, "If PC card doesn't function properly, please try this option"); 32 33 static int isa_probe = 1; 34 module_param(isa_probe, bool, 0444); 35 MODULE_PARM_DESC(isa_probe, "If set ISA interrupts are probed (default). Set to N to disable probing"); 36 37 static int pwr_irqs_off; 38 module_param(pwr_irqs_off, bool, 0644); 39 MODULE_PARM_DESC(pwr_irqs_off, "Force IRQs off during power-on of slot. Use only when seeing IRQ storms!"); 40 41 #define debug(x, s, args...) dev_dbg(&s->dev->dev, x, ##args) 42 43 /* Don't ask.. */ 44 #define to_cycles(ns) ((ns)/120) 45 #define to_ns(cycles) ((cycles)*120) 46 47 /* 48 * yenta PCI irq probing. 49 * currently only used in the TI/EnE initialization code 50 */ 51 #ifdef CONFIG_YENTA_TI 52 static int yenta_probe_cb_irq(struct yenta_socket *socket); 53 #endif 54 55 56 static unsigned int override_bios; 57 module_param(override_bios, uint, 0000); 58 MODULE_PARM_DESC (override_bios, "yenta ignore bios resource allocation"); 59 60 /* 61 * Generate easy-to-use ways of reading a cardbus sockets 62 * regular memory space ("cb_xxx"), configuration space 63 * ("config_xxx") and compatibility space ("exca_xxxx") 64 */ 65 static inline u32 cb_readl(struct yenta_socket *socket, unsigned reg) 66 { 67 u32 val = readl(socket->base + reg); 68 debug("%04x %08x\n", socket, reg, val); 69 return val; 70 } 71 72 static inline void cb_writel(struct yenta_socket *socket, unsigned reg, u32 val) 73 { 74 debug("%04x %08x\n", socket, reg, val); 75 writel(val, socket->base + reg); 76 readl(socket->base + reg); /* avoid problems with PCI write posting */ 77 } 78 79 static inline u8 config_readb(struct yenta_socket *socket, unsigned offset) 80 { 81 u8 val; 82 pci_read_config_byte(socket->dev, offset, &val); 83 debug("%04x %02x\n", socket, offset, val); 84 return val; 85 } 86 87 static inline u16 config_readw(struct yenta_socket *socket, unsigned offset) 88 { 89 u16 val; 90 pci_read_config_word(socket->dev, offset, &val); 91 debug("%04x %04x\n", socket, offset, val); 92 return val; 93 } 94 95 static inline u32 config_readl(struct yenta_socket *socket, unsigned offset) 96 { 97 u32 val; 98 pci_read_config_dword(socket->dev, offset, &val); 99 debug("%04x %08x\n", socket, offset, val); 100 return val; 101 } 102 103 static inline void config_writeb(struct yenta_socket *socket, unsigned offset, u8 val) 104 { 105 debug("%04x %02x\n", socket, offset, val); 106 pci_write_config_byte(socket->dev, offset, val); 107 } 108 109 static inline void config_writew(struct yenta_socket *socket, unsigned offset, u16 val) 110 { 111 debug("%04x %04x\n", socket, offset, val); 112 pci_write_config_word(socket->dev, offset, val); 113 } 114 115 static inline void config_writel(struct yenta_socket *socket, unsigned offset, u32 val) 116 { 117 debug("%04x %08x\n", socket, offset, val); 118 pci_write_config_dword(socket->dev, offset, val); 119 } 120 121 static inline u8 exca_readb(struct yenta_socket *socket, unsigned reg) 122 { 123 u8 val = readb(socket->base + 0x800 + reg); 124 debug("%04x %02x\n", socket, reg, val); 125 return val; 126 } 127 128 static inline u8 exca_readw(struct yenta_socket *socket, unsigned reg) 129 { 130 u16 val; 131 val = readb(socket->base + 0x800 + reg); 132 val |= readb(socket->base + 0x800 + reg + 1) << 8; 133 debug("%04x %04x\n", socket, reg, val); 134 return val; 135 } 136 137 static inline void exca_writeb(struct yenta_socket *socket, unsigned reg, u8 val) 138 { 139 debug("%04x %02x\n", socket, reg, val); 140 writeb(val, socket->base + 0x800 + reg); 141 readb(socket->base + 0x800 + reg); /* PCI write posting... */ 142 } 143 144 static void exca_writew(struct yenta_socket *socket, unsigned reg, u16 val) 145 { 146 debug("%04x %04x\n", socket, reg, val); 147 writeb(val, socket->base + 0x800 + reg); 148 writeb(val >> 8, socket->base + 0x800 + reg + 1); 149 150 /* PCI write posting... */ 151 readb(socket->base + 0x800 + reg); 152 readb(socket->base + 0x800 + reg + 1); 153 } 154 155 static ssize_t show_yenta_registers(struct device *yentadev, struct device_attribute *attr, char *buf) 156 { 157 struct pci_dev *dev = to_pci_dev(yentadev); 158 struct yenta_socket *socket = pci_get_drvdata(dev); 159 int offset = 0, i; 160 161 offset = snprintf(buf, PAGE_SIZE, "CB registers:"); 162 for (i = 0; i < 0x24; i += 4) { 163 unsigned val; 164 if (!(i & 15)) 165 offset += snprintf(buf + offset, PAGE_SIZE - offset, "\n%02x:", i); 166 val = cb_readl(socket, i); 167 offset += snprintf(buf + offset, PAGE_SIZE - offset, " %08x", val); 168 } 169 170 offset += snprintf(buf + offset, PAGE_SIZE - offset, "\n\nExCA registers:"); 171 for (i = 0; i < 0x45; i++) { 172 unsigned char val; 173 if (!(i & 7)) { 174 if (i & 8) { 175 memcpy(buf + offset, " -", 2); 176 offset += 2; 177 } else 178 offset += snprintf(buf + offset, PAGE_SIZE - offset, "\n%02x:", i); 179 } 180 val = exca_readb(socket, i); 181 offset += snprintf(buf + offset, PAGE_SIZE - offset, " %02x", val); 182 } 183 buf[offset++] = '\n'; 184 return offset; 185 } 186 187 static DEVICE_ATTR(yenta_registers, S_IRUSR, show_yenta_registers, NULL); 188 189 /* 190 * Ugh, mixed-mode cardbus and 16-bit pccard state: things depend 191 * on what kind of card is inserted.. 192 */ 193 static int yenta_get_status(struct pcmcia_socket *sock, unsigned int *value) 194 { 195 struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket); 196 unsigned int val; 197 u32 state = cb_readl(socket, CB_SOCKET_STATE); 198 199 val = (state & CB_3VCARD) ? SS_3VCARD : 0; 200 val |= (state & CB_XVCARD) ? SS_XVCARD : 0; 201 val |= (state & (CB_5VCARD | CB_3VCARD | CB_XVCARD | CB_YVCARD)) ? 0 : SS_PENDING; 202 val |= (state & (CB_CDETECT1 | CB_CDETECT2)) ? SS_PENDING : 0; 203 204 205 if (state & CB_CBCARD) { 206 val |= SS_CARDBUS; 207 val |= (state & CB_CARDSTS) ? SS_STSCHG : 0; 208 val |= (state & (CB_CDETECT1 | CB_CDETECT2)) ? 0 : SS_DETECT; 209 val |= (state & CB_PWRCYCLE) ? SS_POWERON | SS_READY : 0; 210 } else if (state & CB_16BITCARD) { 211 u8 status = exca_readb(socket, I365_STATUS); 212 val |= ((status & I365_CS_DETECT) == I365_CS_DETECT) ? SS_DETECT : 0; 213 if (exca_readb(socket, I365_INTCTL) & I365_PC_IOCARD) { 214 val |= (status & I365_CS_STSCHG) ? 0 : SS_STSCHG; 215 } else { 216 val |= (status & I365_CS_BVD1) ? 0 : SS_BATDEAD; 217 val |= (status & I365_CS_BVD2) ? 0 : SS_BATWARN; 218 } 219 val |= (status & I365_CS_WRPROT) ? SS_WRPROT : 0; 220 val |= (status & I365_CS_READY) ? SS_READY : 0; 221 val |= (status & I365_CS_POWERON) ? SS_POWERON : 0; 222 } 223 224 *value = val; 225 return 0; 226 } 227 228 static void yenta_set_power(struct yenta_socket *socket, socket_state_t *state) 229 { 230 /* some birdges require to use the ExCA registers to power 16bit cards */ 231 if (!(cb_readl(socket, CB_SOCKET_STATE) & CB_CBCARD) && 232 (socket->flags & YENTA_16BIT_POWER_EXCA)) { 233 u8 reg, old; 234 reg = old = exca_readb(socket, I365_POWER); 235 reg &= ~(I365_VCC_MASK | I365_VPP1_MASK | I365_VPP2_MASK); 236 237 /* i82365SL-DF style */ 238 if (socket->flags & YENTA_16BIT_POWER_DF) { 239 switch (state->Vcc) { 240 case 33: reg |= I365_VCC_3V; break; 241 case 50: reg |= I365_VCC_5V; break; 242 default: reg = 0; break; 243 } 244 switch (state->Vpp) { 245 case 33: 246 case 50: reg |= I365_VPP1_5V; break; 247 case 120: reg |= I365_VPP1_12V; break; 248 } 249 } else { 250 /* i82365SL-B style */ 251 switch (state->Vcc) { 252 case 50: reg |= I365_VCC_5V; break; 253 default: reg = 0; break; 254 } 255 switch (state->Vpp) { 256 case 50: reg |= I365_VPP1_5V | I365_VPP2_5V; break; 257 case 120: reg |= I365_VPP1_12V | I365_VPP2_12V; break; 258 } 259 } 260 261 if (reg != old) 262 exca_writeb(socket, I365_POWER, reg); 263 } else { 264 u32 reg = 0; /* CB_SC_STPCLK? */ 265 switch (state->Vcc) { 266 case 33: reg = CB_SC_VCC_3V; break; 267 case 50: reg = CB_SC_VCC_5V; break; 268 default: reg = 0; break; 269 } 270 switch (state->Vpp) { 271 case 33: reg |= CB_SC_VPP_3V; break; 272 case 50: reg |= CB_SC_VPP_5V; break; 273 case 120: reg |= CB_SC_VPP_12V; break; 274 } 275 if (reg != cb_readl(socket, CB_SOCKET_CONTROL)) 276 cb_writel(socket, CB_SOCKET_CONTROL, reg); 277 } 278 } 279 280 static int yenta_set_socket(struct pcmcia_socket *sock, socket_state_t *state) 281 { 282 struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket); 283 u16 bridge; 284 285 /* if powering down: do it immediately */ 286 if (state->Vcc == 0) 287 yenta_set_power(socket, state); 288 289 socket->io_irq = state->io_irq; 290 bridge = config_readw(socket, CB_BRIDGE_CONTROL) & ~(CB_BRIDGE_CRST | CB_BRIDGE_INTR); 291 if (cb_readl(socket, CB_SOCKET_STATE) & CB_CBCARD) { 292 u8 intr; 293 bridge |= (state->flags & SS_RESET) ? CB_BRIDGE_CRST : 0; 294 295 /* ISA interrupt control? */ 296 intr = exca_readb(socket, I365_INTCTL); 297 intr = (intr & ~0xf); 298 if (!socket->cb_irq) { 299 intr |= state->io_irq; 300 bridge |= CB_BRIDGE_INTR; 301 } 302 exca_writeb(socket, I365_INTCTL, intr); 303 } else { 304 u8 reg; 305 306 reg = exca_readb(socket, I365_INTCTL) & (I365_RING_ENA | I365_INTR_ENA); 307 reg |= (state->flags & SS_RESET) ? 0 : I365_PC_RESET; 308 reg |= (state->flags & SS_IOCARD) ? I365_PC_IOCARD : 0; 309 if (state->io_irq != socket->cb_irq) { 310 reg |= state->io_irq; 311 bridge |= CB_BRIDGE_INTR; 312 } 313 exca_writeb(socket, I365_INTCTL, reg); 314 315 reg = exca_readb(socket, I365_POWER) & (I365_VCC_MASK|I365_VPP1_MASK); 316 reg |= I365_PWR_NORESET; 317 if (state->flags & SS_PWR_AUTO) reg |= I365_PWR_AUTO; 318 if (state->flags & SS_OUTPUT_ENA) reg |= I365_PWR_OUT; 319 if (exca_readb(socket, I365_POWER) != reg) 320 exca_writeb(socket, I365_POWER, reg); 321 322 /* CSC interrupt: no ISA irq for CSC */ 323 reg = I365_CSC_DETECT; 324 if (state->flags & SS_IOCARD) { 325 if (state->csc_mask & SS_STSCHG) reg |= I365_CSC_STSCHG; 326 } else { 327 if (state->csc_mask & SS_BATDEAD) reg |= I365_CSC_BVD1; 328 if (state->csc_mask & SS_BATWARN) reg |= I365_CSC_BVD2; 329 if (state->csc_mask & SS_READY) reg |= I365_CSC_READY; 330 } 331 exca_writeb(socket, I365_CSCINT, reg); 332 exca_readb(socket, I365_CSC); 333 if(sock->zoom_video) 334 sock->zoom_video(sock, state->flags & SS_ZVCARD); 335 } 336 config_writew(socket, CB_BRIDGE_CONTROL, bridge); 337 /* Socket event mask: get card insert/remove events.. */ 338 cb_writel(socket, CB_SOCKET_EVENT, -1); 339 cb_writel(socket, CB_SOCKET_MASK, CB_CDMASK); 340 341 /* if powering up: do it as the last step when the socket is configured */ 342 if (state->Vcc != 0) 343 yenta_set_power(socket, state); 344 return 0; 345 } 346 347 static int yenta_set_io_map(struct pcmcia_socket *sock, struct pccard_io_map *io) 348 { 349 struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket); 350 int map; 351 unsigned char ioctl, addr, enable; 352 353 map = io->map; 354 355 if (map > 1) 356 return -EINVAL; 357 358 enable = I365_ENA_IO(map); 359 addr = exca_readb(socket, I365_ADDRWIN); 360 361 /* Disable the window before changing it.. */ 362 if (addr & enable) { 363 addr &= ~enable; 364 exca_writeb(socket, I365_ADDRWIN, addr); 365 } 366 367 exca_writew(socket, I365_IO(map)+I365_W_START, io->start); 368 exca_writew(socket, I365_IO(map)+I365_W_STOP, io->stop); 369 370 ioctl = exca_readb(socket, I365_IOCTL) & ~I365_IOCTL_MASK(map); 371 if (io->flags & MAP_0WS) ioctl |= I365_IOCTL_0WS(map); 372 if (io->flags & MAP_16BIT) ioctl |= I365_IOCTL_16BIT(map); 373 if (io->flags & MAP_AUTOSZ) ioctl |= I365_IOCTL_IOCS16(map); 374 exca_writeb(socket, I365_IOCTL, ioctl); 375 376 if (io->flags & MAP_ACTIVE) 377 exca_writeb(socket, I365_ADDRWIN, addr | enable); 378 return 0; 379 } 380 381 static int yenta_set_mem_map(struct pcmcia_socket *sock, struct pccard_mem_map *mem) 382 { 383 struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket); 384 struct pci_bus_region region; 385 int map; 386 unsigned char addr, enable; 387 unsigned int start, stop, card_start; 388 unsigned short word; 389 390 pcibios_resource_to_bus(socket->dev, ®ion, mem->res); 391 392 map = mem->map; 393 start = region.start; 394 stop = region.end; 395 card_start = mem->card_start; 396 397 if (map > 4 || start > stop || ((start ^ stop) >> 24) || 398 (card_start >> 26) || mem->speed > 1000) 399 return -EINVAL; 400 401 enable = I365_ENA_MEM(map); 402 addr = exca_readb(socket, I365_ADDRWIN); 403 if (addr & enable) { 404 addr &= ~enable; 405 exca_writeb(socket, I365_ADDRWIN, addr); 406 } 407 408 exca_writeb(socket, CB_MEM_PAGE(map), start >> 24); 409 410 word = (start >> 12) & 0x0fff; 411 if (mem->flags & MAP_16BIT) 412 word |= I365_MEM_16BIT; 413 if (mem->flags & MAP_0WS) 414 word |= I365_MEM_0WS; 415 exca_writew(socket, I365_MEM(map) + I365_W_START, word); 416 417 word = (stop >> 12) & 0x0fff; 418 switch (to_cycles(mem->speed)) { 419 case 0: break; 420 case 1: word |= I365_MEM_WS0; break; 421 case 2: word |= I365_MEM_WS1; break; 422 default: word |= I365_MEM_WS1 | I365_MEM_WS0; break; 423 } 424 exca_writew(socket, I365_MEM(map) + I365_W_STOP, word); 425 426 word = ((card_start - start) >> 12) & 0x3fff; 427 if (mem->flags & MAP_WRPROT) 428 word |= I365_MEM_WRPROT; 429 if (mem->flags & MAP_ATTRIB) 430 word |= I365_MEM_REG; 431 exca_writew(socket, I365_MEM(map) + I365_W_OFF, word); 432 433 if (mem->flags & MAP_ACTIVE) 434 exca_writeb(socket, I365_ADDRWIN, addr | enable); 435 return 0; 436 } 437 438 439 440 static irqreturn_t yenta_interrupt(int irq, void *dev_id) 441 { 442 unsigned int events; 443 struct yenta_socket *socket = (struct yenta_socket *) dev_id; 444 u8 csc; 445 u32 cb_event; 446 447 /* Clear interrupt status for the event */ 448 cb_event = cb_readl(socket, CB_SOCKET_EVENT); 449 cb_writel(socket, CB_SOCKET_EVENT, cb_event); 450 451 csc = exca_readb(socket, I365_CSC); 452 453 if (!(cb_event || csc)) 454 return IRQ_NONE; 455 456 events = (cb_event & (CB_CD1EVENT | CB_CD2EVENT)) ? SS_DETECT : 0 ; 457 events |= (csc & I365_CSC_DETECT) ? SS_DETECT : 0; 458 if (exca_readb(socket, I365_INTCTL) & I365_PC_IOCARD) { 459 events |= (csc & I365_CSC_STSCHG) ? SS_STSCHG : 0; 460 } else { 461 events |= (csc & I365_CSC_BVD1) ? SS_BATDEAD : 0; 462 events |= (csc & I365_CSC_BVD2) ? SS_BATWARN : 0; 463 events |= (csc & I365_CSC_READY) ? SS_READY : 0; 464 } 465 466 if (events) 467 pcmcia_parse_events(&socket->socket, events); 468 469 return IRQ_HANDLED; 470 } 471 472 static void yenta_interrupt_wrapper(unsigned long data) 473 { 474 struct yenta_socket *socket = (struct yenta_socket *) data; 475 476 yenta_interrupt(0, (void *)socket); 477 socket->poll_timer.expires = jiffies + HZ; 478 add_timer(&socket->poll_timer); 479 } 480 481 static void yenta_clear_maps(struct yenta_socket *socket) 482 { 483 int i; 484 struct resource res = { .start = 0, .end = 0x0fff }; 485 pccard_io_map io = { 0, 0, 0, 0, 1 }; 486 pccard_mem_map mem = { .res = &res, }; 487 488 yenta_set_socket(&socket->socket, &dead_socket); 489 for (i = 0; i < 2; i++) { 490 io.map = i; 491 yenta_set_io_map(&socket->socket, &io); 492 } 493 for (i = 0; i < 5; i++) { 494 mem.map = i; 495 yenta_set_mem_map(&socket->socket, &mem); 496 } 497 } 498 499 /* redoes voltage interrogation if required */ 500 static void yenta_interrogate(struct yenta_socket *socket) 501 { 502 u32 state; 503 504 state = cb_readl(socket, CB_SOCKET_STATE); 505 if (!(state & (CB_5VCARD | CB_3VCARD | CB_XVCARD | CB_YVCARD)) || 506 (state & (CB_CDETECT1 | CB_CDETECT2 | CB_NOTACARD | CB_BADVCCREQ)) || 507 ((state & (CB_16BITCARD | CB_CBCARD)) == (CB_16BITCARD | CB_CBCARD))) 508 cb_writel(socket, CB_SOCKET_FORCE, CB_CVSTEST); 509 } 510 511 /* Called at resume and initialization events */ 512 static int yenta_sock_init(struct pcmcia_socket *sock) 513 { 514 struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket); 515 516 exca_writeb(socket, I365_GBLCTL, 0x00); 517 exca_writeb(socket, I365_GENCTL, 0x00); 518 519 /* Redo card voltage interrogation */ 520 yenta_interrogate(socket); 521 522 yenta_clear_maps(socket); 523 524 if (socket->type && socket->type->sock_init) 525 socket->type->sock_init(socket); 526 527 /* Re-enable CSC interrupts */ 528 cb_writel(socket, CB_SOCKET_MASK, CB_CDMASK); 529 530 return 0; 531 } 532 533 static int yenta_sock_suspend(struct pcmcia_socket *sock) 534 { 535 struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket); 536 537 /* Disable CSC interrupts */ 538 cb_writel(socket, CB_SOCKET_MASK, 0x0); 539 540 return 0; 541 } 542 543 /* 544 * Use an adaptive allocation for the memory resource, 545 * sometimes the memory behind pci bridges is limited: 546 * 1/8 of the size of the io window of the parent. 547 * max 4 MB, min 16 kB. We try very hard to not get below 548 * the "ACC" values, though. 549 */ 550 #define BRIDGE_MEM_MAX 4*1024*1024 551 #define BRIDGE_MEM_ACC 128*1024 552 #define BRIDGE_MEM_MIN 16*1024 553 554 #define BRIDGE_IO_MAX 512 555 #define BRIDGE_IO_ACC 256 556 #define BRIDGE_IO_MIN 32 557 558 #ifndef PCIBIOS_MIN_CARDBUS_IO 559 #define PCIBIOS_MIN_CARDBUS_IO PCIBIOS_MIN_IO 560 #endif 561 562 static int yenta_search_one_res(struct resource *root, struct resource *res, 563 u32 min) 564 { 565 u32 align, size, start, end; 566 567 if (res->flags & IORESOURCE_IO) { 568 align = 1024; 569 size = BRIDGE_IO_MAX; 570 start = PCIBIOS_MIN_CARDBUS_IO; 571 end = ~0U; 572 } else { 573 unsigned long avail = root->end - root->start; 574 int i; 575 size = BRIDGE_MEM_MAX; 576 if (size > avail/8) { 577 size=(avail+1)/8; 578 /* round size down to next power of 2 */ 579 i = 0; 580 while ((size /= 2) != 0) 581 i++; 582 size = 1 << i; 583 } 584 if (size < min) 585 size = min; 586 align = size; 587 start = PCIBIOS_MIN_MEM; 588 end = ~0U; 589 } 590 591 do { 592 if (allocate_resource(root, res, size, start, end, align, 593 NULL, NULL)==0) { 594 return 1; 595 } 596 size = size/2; 597 align = size; 598 } while (size >= min); 599 600 return 0; 601 } 602 603 604 static int yenta_search_res(struct yenta_socket *socket, struct resource *res, 605 u32 min) 606 { 607 int i; 608 for (i=0; i<PCI_BUS_NUM_RESOURCES; i++) { 609 struct resource * root = socket->dev->bus->resource[i]; 610 if (!root) 611 continue; 612 613 if ((res->flags ^ root->flags) & 614 (IORESOURCE_IO | IORESOURCE_MEM | IORESOURCE_PREFETCH)) 615 continue; /* Wrong type */ 616 617 if (yenta_search_one_res(root, res, min)) 618 return 1; 619 } 620 return 0; 621 } 622 623 static int yenta_allocate_res(struct yenta_socket *socket, int nr, unsigned type, int addr_start, int addr_end) 624 { 625 struct pci_dev *dev = socket->dev; 626 struct resource *res; 627 struct pci_bus_region region; 628 unsigned mask; 629 630 res = dev->resource + PCI_BRIDGE_RESOURCES + nr; 631 /* Already allocated? */ 632 if (res->parent) 633 return 0; 634 635 /* The granularity of the memory limit is 4kB, on IO it's 4 bytes */ 636 mask = ~0xfff; 637 if (type & IORESOURCE_IO) 638 mask = ~3; 639 640 res->name = dev->subordinate->name; 641 res->flags = type; 642 643 region.start = config_readl(socket, addr_start) & mask; 644 region.end = config_readl(socket, addr_end) | ~mask; 645 if (region.start && region.end > region.start && !override_bios) { 646 pcibios_bus_to_resource(dev, res, ®ion); 647 if (pci_claim_resource(dev, PCI_BRIDGE_RESOURCES + nr) == 0) 648 return 0; 649 dev_printk(KERN_INFO, &dev->dev, 650 "Preassigned resource %d busy or not available, " 651 "reconfiguring...\n", 652 nr); 653 } 654 655 if (type & IORESOURCE_IO) { 656 if ((yenta_search_res(socket, res, BRIDGE_IO_MAX)) || 657 (yenta_search_res(socket, res, BRIDGE_IO_ACC)) || 658 (yenta_search_res(socket, res, BRIDGE_IO_MIN))) 659 return 1; 660 } else { 661 if (type & IORESOURCE_PREFETCH) { 662 if ((yenta_search_res(socket, res, BRIDGE_MEM_MAX)) || 663 (yenta_search_res(socket, res, BRIDGE_MEM_ACC)) || 664 (yenta_search_res(socket, res, BRIDGE_MEM_MIN))) 665 return 1; 666 /* Approximating prefetchable by non-prefetchable */ 667 res->flags = IORESOURCE_MEM; 668 } 669 if ((yenta_search_res(socket, res, BRIDGE_MEM_MAX)) || 670 (yenta_search_res(socket, res, BRIDGE_MEM_ACC)) || 671 (yenta_search_res(socket, res, BRIDGE_MEM_MIN))) 672 return 1; 673 } 674 675 dev_printk(KERN_INFO, &dev->dev, 676 "no resource of type %x available, trying to continue...\n", 677 type); 678 res->start = res->end = res->flags = 0; 679 return 0; 680 } 681 682 /* 683 * Allocate the bridge mappings for the device.. 684 */ 685 static void yenta_allocate_resources(struct yenta_socket *socket) 686 { 687 int program = 0; 688 program += yenta_allocate_res(socket, 0, IORESOURCE_IO, 689 PCI_CB_IO_BASE_0, PCI_CB_IO_LIMIT_0); 690 program += yenta_allocate_res(socket, 1, IORESOURCE_IO, 691 PCI_CB_IO_BASE_1, PCI_CB_IO_LIMIT_1); 692 program += yenta_allocate_res(socket, 2, IORESOURCE_MEM|IORESOURCE_PREFETCH, 693 PCI_CB_MEMORY_BASE_0, PCI_CB_MEMORY_LIMIT_0); 694 program += yenta_allocate_res(socket, 3, IORESOURCE_MEM, 695 PCI_CB_MEMORY_BASE_1, PCI_CB_MEMORY_LIMIT_1); 696 if (program) 697 pci_setup_cardbus(socket->dev->subordinate); 698 } 699 700 701 /* 702 * Free the bridge mappings for the device.. 703 */ 704 static void yenta_free_resources(struct yenta_socket *socket) 705 { 706 int i; 707 for (i=0;i<4;i++) { 708 struct resource *res; 709 res = socket->dev->resource + PCI_BRIDGE_RESOURCES + i; 710 if (res->start != 0 && res->end != 0) 711 release_resource(res); 712 res->start = res->end = res->flags = 0; 713 } 714 } 715 716 717 /* 718 * Close it down - release our resources and go home.. 719 */ 720 static void yenta_close(struct pci_dev *dev) 721 { 722 struct yenta_socket *sock = pci_get_drvdata(dev); 723 724 /* Remove the register attributes */ 725 device_remove_file(&dev->dev, &dev_attr_yenta_registers); 726 727 /* we don't want a dying socket registered */ 728 pcmcia_unregister_socket(&sock->socket); 729 730 /* Disable all events so we don't die in an IRQ storm */ 731 cb_writel(sock, CB_SOCKET_MASK, 0x0); 732 exca_writeb(sock, I365_CSCINT, 0); 733 734 if (sock->cb_irq) 735 free_irq(sock->cb_irq, sock); 736 else 737 del_timer_sync(&sock->poll_timer); 738 739 if (sock->base) 740 iounmap(sock->base); 741 yenta_free_resources(sock); 742 743 pci_release_regions(dev); 744 pci_disable_device(dev); 745 pci_set_drvdata(dev, NULL); 746 } 747 748 749 static struct pccard_operations yenta_socket_operations = { 750 .init = yenta_sock_init, 751 .suspend = yenta_sock_suspend, 752 .get_status = yenta_get_status, 753 .set_socket = yenta_set_socket, 754 .set_io_map = yenta_set_io_map, 755 .set_mem_map = yenta_set_mem_map, 756 }; 757 758 759 #ifdef CONFIG_YENTA_TI 760 #include "ti113x.h" 761 #endif 762 #ifdef CONFIG_YENTA_RICOH 763 #include "ricoh.h" 764 #endif 765 #ifdef CONFIG_YENTA_TOSHIBA 766 #include "topic.h" 767 #endif 768 #ifdef CONFIG_YENTA_O2 769 #include "o2micro.h" 770 #endif 771 772 enum { 773 CARDBUS_TYPE_DEFAULT = -1, 774 CARDBUS_TYPE_TI, 775 CARDBUS_TYPE_TI113X, 776 CARDBUS_TYPE_TI12XX, 777 CARDBUS_TYPE_TI1250, 778 CARDBUS_TYPE_RICOH, 779 CARDBUS_TYPE_TOPIC95, 780 CARDBUS_TYPE_TOPIC97, 781 CARDBUS_TYPE_O2MICRO, 782 CARDBUS_TYPE_ENE, 783 }; 784 785 /* 786 * Different cardbus controllers have slightly different 787 * initialization sequences etc details. List them here.. 788 */ 789 static struct cardbus_type cardbus_type[] = { 790 #ifdef CONFIG_YENTA_TI 791 [CARDBUS_TYPE_TI] = { 792 .override = ti_override, 793 .save_state = ti_save_state, 794 .restore_state = ti_restore_state, 795 .sock_init = ti_init, 796 }, 797 [CARDBUS_TYPE_TI113X] = { 798 .override = ti113x_override, 799 .save_state = ti_save_state, 800 .restore_state = ti_restore_state, 801 .sock_init = ti_init, 802 }, 803 [CARDBUS_TYPE_TI12XX] = { 804 .override = ti12xx_override, 805 .save_state = ti_save_state, 806 .restore_state = ti_restore_state, 807 .sock_init = ti_init, 808 }, 809 [CARDBUS_TYPE_TI1250] = { 810 .override = ti1250_override, 811 .save_state = ti_save_state, 812 .restore_state = ti_restore_state, 813 .sock_init = ti_init, 814 }, 815 #endif 816 #ifdef CONFIG_YENTA_RICOH 817 [CARDBUS_TYPE_RICOH] = { 818 .override = ricoh_override, 819 .save_state = ricoh_save_state, 820 .restore_state = ricoh_restore_state, 821 }, 822 #endif 823 #ifdef CONFIG_YENTA_TOSHIBA 824 [CARDBUS_TYPE_TOPIC95] = { 825 .override = topic95_override, 826 }, 827 [CARDBUS_TYPE_TOPIC97] = { 828 .override = topic97_override, 829 }, 830 #endif 831 #ifdef CONFIG_YENTA_O2 832 [CARDBUS_TYPE_O2MICRO] = { 833 .override = o2micro_override, 834 .restore_state = o2micro_restore_state, 835 }, 836 #endif 837 #ifdef CONFIG_YENTA_TI 838 [CARDBUS_TYPE_ENE] = { 839 .override = ene_override, 840 .save_state = ti_save_state, 841 .restore_state = ti_restore_state, 842 .sock_init = ti_init, 843 }, 844 #endif 845 }; 846 847 848 /* 849 * Only probe "regular" interrupts, don't 850 * touch dangerous spots like the mouse irq, 851 * because there are mice that apparently 852 * get really confused if they get fondled 853 * too intimately. 854 * 855 * Default to 11, 10, 9, 7, 6, 5, 4, 3. 856 */ 857 static u32 isa_interrupts = 0x0ef8; 858 859 static unsigned int yenta_probe_irq(struct yenta_socket *socket, u32 isa_irq_mask) 860 { 861 int i; 862 unsigned long val; 863 u32 mask; 864 865 /* 866 * Probe for usable interrupts using the force 867 * register to generate bogus card status events. 868 */ 869 cb_writel(socket, CB_SOCKET_EVENT, -1); 870 cb_writel(socket, CB_SOCKET_MASK, CB_CSTSMASK); 871 exca_writeb(socket, I365_CSCINT, 0); 872 val = probe_irq_on() & isa_irq_mask; 873 for (i = 1; i < 16; i++) { 874 if (!((val >> i) & 1)) 875 continue; 876 exca_writeb(socket, I365_CSCINT, I365_CSC_STSCHG | (i << 4)); 877 cb_writel(socket, CB_SOCKET_FORCE, CB_FCARDSTS); 878 udelay(100); 879 cb_writel(socket, CB_SOCKET_EVENT, -1); 880 } 881 cb_writel(socket, CB_SOCKET_MASK, 0); 882 exca_writeb(socket, I365_CSCINT, 0); 883 884 mask = probe_irq_mask(val) & 0xffff; 885 886 return mask; 887 } 888 889 890 /* 891 * yenta PCI irq probing. 892 * currently only used in the TI/EnE initialization code 893 */ 894 #ifdef CONFIG_YENTA_TI 895 896 /* interrupt handler, only used during probing */ 897 static irqreturn_t yenta_probe_handler(int irq, void *dev_id) 898 { 899 struct yenta_socket *socket = (struct yenta_socket *) dev_id; 900 u8 csc; 901 u32 cb_event; 902 903 /* Clear interrupt status for the event */ 904 cb_event = cb_readl(socket, CB_SOCKET_EVENT); 905 cb_writel(socket, CB_SOCKET_EVENT, -1); 906 csc = exca_readb(socket, I365_CSC); 907 908 if (cb_event || csc) { 909 socket->probe_status = 1; 910 return IRQ_HANDLED; 911 } 912 913 return IRQ_NONE; 914 } 915 916 /* probes the PCI interrupt, use only on override functions */ 917 static int yenta_probe_cb_irq(struct yenta_socket *socket) 918 { 919 if (!socket->cb_irq) 920 return -1; 921 922 socket->probe_status = 0; 923 924 if (request_irq(socket->cb_irq, yenta_probe_handler, IRQF_SHARED, "yenta", socket)) { 925 dev_printk(KERN_WARNING, &socket->dev->dev, 926 "request_irq() in yenta_probe_cb_irq() failed!\n"); 927 return -1; 928 } 929 930 /* generate interrupt, wait */ 931 exca_writeb(socket, I365_CSCINT, I365_CSC_STSCHG); 932 cb_writel(socket, CB_SOCKET_EVENT, -1); 933 cb_writel(socket, CB_SOCKET_MASK, CB_CSTSMASK); 934 cb_writel(socket, CB_SOCKET_FORCE, CB_FCARDSTS); 935 936 msleep(100); 937 938 /* disable interrupts */ 939 cb_writel(socket, CB_SOCKET_MASK, 0); 940 exca_writeb(socket, I365_CSCINT, 0); 941 cb_writel(socket, CB_SOCKET_EVENT, -1); 942 exca_readb(socket, I365_CSC); 943 944 free_irq(socket->cb_irq, socket); 945 946 return (int) socket->probe_status; 947 } 948 949 #endif /* CONFIG_YENTA_TI */ 950 951 952 /* 953 * Set static data that doesn't need re-initializing.. 954 */ 955 static void yenta_get_socket_capabilities(struct yenta_socket *socket, u32 isa_irq_mask) 956 { 957 socket->socket.pci_irq = socket->cb_irq; 958 if (isa_probe) 959 socket->socket.irq_mask = yenta_probe_irq(socket, isa_irq_mask); 960 else 961 socket->socket.irq_mask = 0; 962 963 dev_printk(KERN_INFO, &socket->dev->dev, 964 "ISA IRQ mask 0x%04x, PCI irq %d\n", 965 socket->socket.irq_mask, socket->cb_irq); 966 } 967 968 /* 969 * Initialize the standard cardbus registers 970 */ 971 static void yenta_config_init(struct yenta_socket *socket) 972 { 973 u16 bridge; 974 struct pci_dev *dev = socket->dev; 975 struct pci_bus_region region; 976 977 pcibios_resource_to_bus(socket->dev, ®ion, &dev->resource[0]); 978 979 config_writel(socket, CB_LEGACY_MODE_BASE, 0); 980 config_writel(socket, PCI_BASE_ADDRESS_0, region.start); 981 config_writew(socket, PCI_COMMAND, 982 PCI_COMMAND_IO | 983 PCI_COMMAND_MEMORY | 984 PCI_COMMAND_MASTER | 985 PCI_COMMAND_WAIT); 986 987 /* MAGIC NUMBERS! Fixme */ 988 config_writeb(socket, PCI_CACHE_LINE_SIZE, L1_CACHE_BYTES / 4); 989 config_writeb(socket, PCI_LATENCY_TIMER, 168); 990 config_writel(socket, PCI_PRIMARY_BUS, 991 (176 << 24) | /* sec. latency timer */ 992 (dev->subordinate->subordinate << 16) | /* subordinate bus */ 993 (dev->subordinate->secondary << 8) | /* secondary bus */ 994 dev->subordinate->primary); /* primary bus */ 995 996 /* 997 * Set up the bridging state: 998 * - enable write posting. 999 * - memory window 0 prefetchable, window 1 non-prefetchable 1000 * - PCI interrupts enabled if a PCI interrupt exists.. 1001 */ 1002 bridge = config_readw(socket, CB_BRIDGE_CONTROL); 1003 bridge &= ~(CB_BRIDGE_CRST | CB_BRIDGE_PREFETCH1 | CB_BRIDGE_ISAEN | CB_BRIDGE_VGAEN); 1004 bridge |= CB_BRIDGE_PREFETCH0 | CB_BRIDGE_POSTEN; 1005 config_writew(socket, CB_BRIDGE_CONTROL, bridge); 1006 } 1007 1008 /** 1009 * yenta_fixup_parent_bridge - Fix subordinate bus# of the parent bridge 1010 * @cardbus_bridge: The PCI bus which the CardBus bridge bridges to 1011 * 1012 * Checks if devices on the bus which the CardBus bridge bridges to would be 1013 * invisible during PCI scans because of a misconfigured subordinate number 1014 * of the parent brige - some BIOSes seem to be too lazy to set it right. 1015 * Does the fixup carefully by checking how far it can go without conflicts. 1016 * See http\://bugzilla.kernel.org/show_bug.cgi?id=2944 for more information. 1017 */ 1018 static void yenta_fixup_parent_bridge(struct pci_bus *cardbus_bridge) 1019 { 1020 struct list_head *tmp; 1021 unsigned char upper_limit; 1022 /* 1023 * We only check and fix the parent bridge: All systems which need 1024 * this fixup that have been reviewed are laptops and the only bridge 1025 * which needed fixing was the parent bridge of the CardBus bridge: 1026 */ 1027 struct pci_bus *bridge_to_fix = cardbus_bridge->parent; 1028 1029 /* Check bus numbers are already set up correctly: */ 1030 if (bridge_to_fix->subordinate >= cardbus_bridge->subordinate) 1031 return; /* The subordinate number is ok, nothing to do */ 1032 1033 if (!bridge_to_fix->parent) 1034 return; /* Root bridges are ok */ 1035 1036 /* stay within the limits of the bus range of the parent: */ 1037 upper_limit = bridge_to_fix->parent->subordinate; 1038 1039 /* check the bus ranges of all silbling bridges to prevent overlap */ 1040 list_for_each(tmp, &bridge_to_fix->parent->children) { 1041 struct pci_bus * silbling = pci_bus_b(tmp); 1042 /* 1043 * If the silbling has a higher secondary bus number 1044 * and it's secondary is equal or smaller than our 1045 * current upper limit, set the new upper limit to 1046 * the bus number below the silbling's range: 1047 */ 1048 if (silbling->secondary > bridge_to_fix->subordinate 1049 && silbling->secondary <= upper_limit) 1050 upper_limit = silbling->secondary - 1; 1051 } 1052 1053 /* Show that the wanted subordinate number is not possible: */ 1054 if (cardbus_bridge->subordinate > upper_limit) 1055 dev_printk(KERN_WARNING, &cardbus_bridge->dev, 1056 "Upper limit for fixing this " 1057 "bridge's parent bridge: #%02x\n", upper_limit); 1058 1059 /* If we have room to increase the bridge's subordinate number, */ 1060 if (bridge_to_fix->subordinate < upper_limit) { 1061 1062 /* use the highest number of the hidden bus, within limits */ 1063 unsigned char subordinate_to_assign = 1064 min(cardbus_bridge->subordinate, upper_limit); 1065 1066 dev_printk(KERN_INFO, &bridge_to_fix->dev, 1067 "Raising subordinate bus# of parent " 1068 "bus (#%02x) from #%02x to #%02x\n", 1069 bridge_to_fix->number, 1070 bridge_to_fix->subordinate, subordinate_to_assign); 1071 1072 /* Save the new subordinate in the bus struct of the bridge */ 1073 bridge_to_fix->subordinate = subordinate_to_assign; 1074 1075 /* and update the PCI config space with the new subordinate */ 1076 pci_write_config_byte(bridge_to_fix->self, 1077 PCI_SUBORDINATE_BUS, bridge_to_fix->subordinate); 1078 } 1079 } 1080 1081 /* 1082 * Initialize a cardbus controller. Make sure we have a usable 1083 * interrupt, and that we can map the cardbus area. Fill in the 1084 * socket information structure.. 1085 */ 1086 static int __devinit yenta_probe (struct pci_dev *dev, const struct pci_device_id *id) 1087 { 1088 struct yenta_socket *socket; 1089 int ret; 1090 1091 /* 1092 * If we failed to assign proper bus numbers for this cardbus 1093 * controller during PCI probe, its subordinate pci_bus is NULL. 1094 * Bail out if so. 1095 */ 1096 if (!dev->subordinate) { 1097 dev_printk(KERN_ERR, &dev->dev, "no bus associated! " 1098 "(try 'pci=assign-busses')\n"); 1099 return -ENODEV; 1100 } 1101 1102 socket = kzalloc(sizeof(struct yenta_socket), GFP_KERNEL); 1103 if (!socket) 1104 return -ENOMEM; 1105 1106 /* prepare pcmcia_socket */ 1107 socket->socket.ops = ¥ta_socket_operations; 1108 socket->socket.resource_ops = &pccard_nonstatic_ops; 1109 socket->socket.dev.parent = &dev->dev; 1110 socket->socket.driver_data = socket; 1111 socket->socket.owner = THIS_MODULE; 1112 socket->socket.features = SS_CAP_PAGE_REGS | SS_CAP_PCCARD; 1113 socket->socket.map_size = 0x1000; 1114 socket->socket.cb_dev = dev; 1115 1116 /* prepare struct yenta_socket */ 1117 socket->dev = dev; 1118 pci_set_drvdata(dev, socket); 1119 1120 /* 1121 * Do some basic sanity checking.. 1122 */ 1123 if (pci_enable_device(dev)) { 1124 ret = -EBUSY; 1125 goto free; 1126 } 1127 1128 ret = pci_request_regions(dev, "yenta_socket"); 1129 if (ret) 1130 goto disable; 1131 1132 if (!pci_resource_start(dev, 0)) { 1133 dev_printk(KERN_ERR, &dev->dev, "No cardbus resource!\n"); 1134 ret = -ENODEV; 1135 goto release; 1136 } 1137 1138 /* 1139 * Ok, start setup.. Map the cardbus registers, 1140 * and request the IRQ. 1141 */ 1142 socket->base = ioremap(pci_resource_start(dev, 0), 0x1000); 1143 if (!socket->base) { 1144 ret = -ENOMEM; 1145 goto release; 1146 } 1147 1148 /* 1149 * report the subsystem vendor and device for help debugging 1150 * the irq stuff... 1151 */ 1152 dev_printk(KERN_INFO, &dev->dev, "CardBus bridge found [%04x:%04x]\n", 1153 dev->subsystem_vendor, dev->subsystem_device); 1154 1155 yenta_config_init(socket); 1156 1157 /* Disable all events */ 1158 cb_writel(socket, CB_SOCKET_MASK, 0x0); 1159 1160 /* Set up the bridge regions.. */ 1161 yenta_allocate_resources(socket); 1162 1163 socket->cb_irq = dev->irq; 1164 1165 /* Do we have special options for the device? */ 1166 if (id->driver_data != CARDBUS_TYPE_DEFAULT && 1167 id->driver_data < ARRAY_SIZE(cardbus_type)) { 1168 socket->type = &cardbus_type[id->driver_data]; 1169 1170 ret = socket->type->override(socket); 1171 if (ret < 0) 1172 goto unmap; 1173 } 1174 1175 /* We must finish initialization here */ 1176 1177 if (!socket->cb_irq || request_irq(socket->cb_irq, yenta_interrupt, IRQF_SHARED, "yenta", socket)) { 1178 /* No IRQ or request_irq failed. Poll */ 1179 socket->cb_irq = 0; /* But zero is a valid IRQ number. */ 1180 init_timer(&socket->poll_timer); 1181 socket->poll_timer.function = yenta_interrupt_wrapper; 1182 socket->poll_timer.data = (unsigned long)socket; 1183 socket->poll_timer.expires = jiffies + HZ; 1184 add_timer(&socket->poll_timer); 1185 dev_printk(KERN_INFO, &dev->dev, 1186 "no PCI IRQ, CardBus support disabled for this " 1187 "socket.\n"); 1188 dev_printk(KERN_INFO, &dev->dev, 1189 "check your BIOS CardBus, BIOS IRQ or ACPI " 1190 "settings.\n"); 1191 } else { 1192 socket->socket.features |= SS_CAP_CARDBUS; 1193 } 1194 1195 /* Figure out what the dang thing can do for the PCMCIA layer... */ 1196 yenta_interrogate(socket); 1197 yenta_get_socket_capabilities(socket, isa_interrupts); 1198 dev_printk(KERN_INFO, &dev->dev, 1199 "Socket status: %08x\n", cb_readl(socket, CB_SOCKET_STATE)); 1200 1201 yenta_fixup_parent_bridge(dev->subordinate); 1202 1203 /* Register it with the pcmcia layer.. */ 1204 ret = pcmcia_register_socket(&socket->socket); 1205 if (ret == 0) { 1206 /* Add the yenta register attributes */ 1207 ret = device_create_file(&dev->dev, &dev_attr_yenta_registers); 1208 if (ret == 0) 1209 goto out; 1210 1211 /* error path... */ 1212 pcmcia_unregister_socket(&socket->socket); 1213 } 1214 1215 unmap: 1216 iounmap(socket->base); 1217 release: 1218 pci_release_regions(dev); 1219 disable: 1220 pci_disable_device(dev); 1221 free: 1222 kfree(socket); 1223 out: 1224 return ret; 1225 } 1226 1227 #ifdef CONFIG_PM 1228 static int yenta_dev_suspend (struct pci_dev *dev, pm_message_t state) 1229 { 1230 struct yenta_socket *socket = pci_get_drvdata(dev); 1231 int ret; 1232 1233 ret = pcmcia_socket_dev_suspend(&dev->dev, state); 1234 1235 if (socket) { 1236 if (socket->type && socket->type->save_state) 1237 socket->type->save_state(socket); 1238 1239 /* FIXME: pci_save_state needs to have a better interface */ 1240 pci_save_state(dev); 1241 pci_read_config_dword(dev, 16*4, &socket->saved_state[0]); 1242 pci_read_config_dword(dev, 17*4, &socket->saved_state[1]); 1243 pci_disable_device(dev); 1244 1245 /* 1246 * Some laptops (IBM T22) do not like us putting the Cardbus 1247 * bridge into D3. At a guess, some other laptop will 1248 * probably require this, so leave it commented out for now. 1249 */ 1250 /* pci_set_power_state(dev, 3); */ 1251 } 1252 1253 return ret; 1254 } 1255 1256 1257 static int yenta_dev_resume (struct pci_dev *dev) 1258 { 1259 struct yenta_socket *socket = pci_get_drvdata(dev); 1260 1261 if (socket) { 1262 int rc; 1263 1264 pci_set_power_state(dev, 0); 1265 /* FIXME: pci_restore_state needs to have a better interface */ 1266 pci_restore_state(dev); 1267 pci_write_config_dword(dev, 16*4, socket->saved_state[0]); 1268 pci_write_config_dword(dev, 17*4, socket->saved_state[1]); 1269 1270 rc = pci_enable_device(dev); 1271 if (rc) 1272 return rc; 1273 1274 pci_set_master(dev); 1275 1276 if (socket->type && socket->type->restore_state) 1277 socket->type->restore_state(socket); 1278 } 1279 1280 return pcmcia_socket_dev_resume(&dev->dev); 1281 } 1282 #endif 1283 1284 #define CB_ID(vend,dev,type) \ 1285 { \ 1286 .vendor = vend, \ 1287 .device = dev, \ 1288 .subvendor = PCI_ANY_ID, \ 1289 .subdevice = PCI_ANY_ID, \ 1290 .class = PCI_CLASS_BRIDGE_CARDBUS << 8, \ 1291 .class_mask = ~0, \ 1292 .driver_data = CARDBUS_TYPE_##type, \ 1293 } 1294 1295 static struct pci_device_id yenta_table [] = { 1296 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1031, TI), 1297 1298 /* 1299 * TBD: Check if these TI variants can use more 1300 * advanced overrides instead. (I can't get the 1301 * data sheets for these devices. --rmk) 1302 */ 1303 #ifdef CONFIG_YENTA_TI 1304 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1210, TI), 1305 1306 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1130, TI113X), 1307 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1131, TI113X), 1308 1309 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1211, TI12XX), 1310 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1220, TI12XX), 1311 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1221, TI12XX), 1312 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1225, TI12XX), 1313 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1251A, TI12XX), 1314 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1251B, TI12XX), 1315 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1420, TI12XX), 1316 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1450, TI12XX), 1317 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1451A, TI12XX), 1318 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1510, TI12XX), 1319 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1520, TI12XX), 1320 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1620, TI12XX), 1321 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4410, TI12XX), 1322 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4450, TI12XX), 1323 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4451, TI12XX), 1324 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4510, TI12XX), 1325 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4520, TI12XX), 1326 1327 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1250, TI1250), 1328 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1410, TI1250), 1329 1330 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_XX21_XX11, TI12XX), 1331 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_X515, TI12XX), 1332 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_XX12, TI12XX), 1333 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_X420, TI12XX), 1334 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_X620, TI12XX), 1335 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_7410, TI12XX), 1336 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_7510, TI12XX), 1337 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_7610, TI12XX), 1338 1339 CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_710, TI12XX), 1340 CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_712, TI12XX), 1341 CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_720, TI12XX), 1342 CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_722, TI12XX), 1343 CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1211, ENE), 1344 CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1225, ENE), 1345 CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1410, ENE), 1346 CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1420, ENE), 1347 #endif /* CONFIG_YENTA_TI */ 1348 1349 #ifdef CONFIG_YENTA_RICOH 1350 CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C465, RICOH), 1351 CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C466, RICOH), 1352 CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C475, RICOH), 1353 CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C476, RICOH), 1354 CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C478, RICOH), 1355 #endif 1356 1357 #ifdef CONFIG_YENTA_TOSHIBA 1358 CB_ID(PCI_VENDOR_ID_TOSHIBA, PCI_DEVICE_ID_TOSHIBA_TOPIC95, TOPIC95), 1359 CB_ID(PCI_VENDOR_ID_TOSHIBA, PCI_DEVICE_ID_TOSHIBA_TOPIC97, TOPIC97), 1360 CB_ID(PCI_VENDOR_ID_TOSHIBA, PCI_DEVICE_ID_TOSHIBA_TOPIC100, TOPIC97), 1361 #endif 1362 1363 #ifdef CONFIG_YENTA_O2 1364 CB_ID(PCI_VENDOR_ID_O2, PCI_ANY_ID, O2MICRO), 1365 #endif 1366 1367 /* match any cardbus bridge */ 1368 CB_ID(PCI_ANY_ID, PCI_ANY_ID, DEFAULT), 1369 { /* all zeroes */ } 1370 }; 1371 MODULE_DEVICE_TABLE(pci, yenta_table); 1372 1373 1374 static struct pci_driver yenta_cardbus_driver = { 1375 .name = "yenta_cardbus", 1376 .id_table = yenta_table, 1377 .probe = yenta_probe, 1378 .remove = __devexit_p(yenta_close), 1379 #ifdef CONFIG_PM 1380 .suspend = yenta_dev_suspend, 1381 .resume = yenta_dev_resume, 1382 #endif 1383 }; 1384 1385 1386 static int __init yenta_socket_init(void) 1387 { 1388 return pci_register_driver (¥ta_cardbus_driver); 1389 } 1390 1391 1392 static void __exit yenta_socket_exit (void) 1393 { 1394 pci_unregister_driver (¥ta_cardbus_driver); 1395 } 1396 1397 1398 module_init(yenta_socket_init); 1399 module_exit(yenta_socket_exit); 1400 1401 MODULE_LICENSE("GPL"); 1402