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Merge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / pcmcia / yenta_socket.c
blobb85375f876228883e744d2c23ccc5b4c0667088f
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 #include <linux/io.h>
20
21 #include <pcmcia/cs_types.h>
22 #include <pcmcia/ss.h>
23 #include <pcmcia/cs.h>
24
25 #include "yenta_socket.h"
26 #include "i82365.h"
27
28 static int disable_clkrun;
29 module_param(disable_clkrun, bool, 0444);
30 MODULE_PARM_DESC(disable_clkrun, "If PC card doesn't function properly, please try this option");
31
32 static int isa_probe = 1;
33 module_param(isa_probe, bool, 0444);
34 MODULE_PARM_DESC(isa_probe, "If set ISA interrupts are probed (default). Set to N to disable probing");
35
36 static int pwr_irqs_off;
37 module_param(pwr_irqs_off, bool, 0644);
38 MODULE_PARM_DESC(pwr_irqs_off, "Force IRQs off during power-on of slot. Use only when seeing IRQ storms!");
39
40 static char o2_speedup[] = "default";
41 module_param_string(o2_speedup, o2_speedup, sizeof(o2_speedup), 0444);
42 MODULE_PARM_DESC(o2_speedup, "Use prefetch/burst for O2-bridges: 'on', 'off' "
43 "or 'default' (uses recommended behaviour for the detected bridge)");
44
45 #define debug(x, s, args...) dev_dbg(&s->dev->dev, x, ##args)
46
47 /* Don't ask.. */
48 #define to_cycles(ns) ((ns)/120)
49 #define to_ns(cycles) ((cycles)*120)
50
51 /*
52 * yenta PCI irq probing.
53 * currently only used in the TI/EnE initialization code
54 */
55 #ifdef CONFIG_YENTA_TI
56 static int yenta_probe_cb_irq(struct yenta_socket *socket);
57 #endif
58
59
60 static unsigned int override_bios;
61 module_param(override_bios, uint, 0000);
62 MODULE_PARM_DESC(override_bios, "yenta ignore bios resource allocation");
63
64 /*
65 * Generate easy-to-use ways of reading a cardbus sockets
66 * regular memory space ("cb_xxx"), configuration space
67 * ("config_xxx") and compatibility space ("exca_xxxx")
68 */
69 static inline u32 cb_readl(struct yenta_socket *socket, unsigned reg)
70 {
71 u32 val = readl(socket->base + reg);
72 debug("%04x %08x\n", socket, reg, val);
73 return val;
74 }
75
76 static inline void cb_writel(struct yenta_socket *socket, unsigned reg, u32 val)
77 {
78 debug("%04x %08x\n", socket, reg, val);
79 writel(val, socket->base + reg);
80 readl(socket->base + reg); /* avoid problems with PCI write posting */
81 }
82
83 static inline u8 config_readb(struct yenta_socket *socket, unsigned offset)
84 {
85 u8 val;
86 pci_read_config_byte(socket->dev, offset, &val);
87 debug("%04x %02x\n", socket, offset, val);
88 return val;
89 }
90
91 static inline u16 config_readw(struct yenta_socket *socket, unsigned offset)
92 {
93 u16 val;
94 pci_read_config_word(socket->dev, offset, &val);
95 debug("%04x %04x\n", socket, offset, val);
96 return val;
97 }
98
99 static inline u32 config_readl(struct yenta_socket *socket, unsigned offset)
100 {
101 u32 val;
102 pci_read_config_dword(socket->dev, offset, &val);
103 debug("%04x %08x\n", socket, offset, val);
104 return val;
105 }
106
107 static inline void config_writeb(struct yenta_socket *socket, unsigned offset, u8 val)
108 {
109 debug("%04x %02x\n", socket, offset, val);
110 pci_write_config_byte(socket->dev, offset, val);
111 }
112
113 static inline void config_writew(struct yenta_socket *socket, unsigned offset, u16 val)
114 {
115 debug("%04x %04x\n", socket, offset, val);
116 pci_write_config_word(socket->dev, offset, val);
117 }
118
119 static inline void config_writel(struct yenta_socket *socket, unsigned offset, u32 val)
120 {
121 debug("%04x %08x\n", socket, offset, val);
122 pci_write_config_dword(socket->dev, offset, val);
123 }
124
125 static inline u8 exca_readb(struct yenta_socket *socket, unsigned reg)
126 {
127 u8 val = readb(socket->base + 0x800 + reg);
128 debug("%04x %02x\n", socket, reg, val);
129 return val;
130 }
131
132 static inline u8 exca_readw(struct yenta_socket *socket, unsigned reg)
133 {
134 u16 val;
135 val = readb(socket->base + 0x800 + reg);
136 val |= readb(socket->base + 0x800 + reg + 1) << 8;
137 debug("%04x %04x\n", socket, reg, val);
138 return val;
139 }
140
141 static inline void exca_writeb(struct yenta_socket *socket, unsigned reg, u8 val)
142 {
143 debug("%04x %02x\n", socket, reg, val);
144 writeb(val, socket->base + 0x800 + reg);
145 readb(socket->base + 0x800 + reg); /* PCI write posting... */
146 }
147
148 static void exca_writew(struct yenta_socket *socket, unsigned reg, u16 val)
149 {
150 debug("%04x %04x\n", socket, reg, val);
151 writeb(val, socket->base + 0x800 + reg);
152 writeb(val >> 8, socket->base + 0x800 + reg + 1);
153
154 /* PCI write posting... */
155 readb(socket->base + 0x800 + reg);
156 readb(socket->base + 0x800 + reg + 1);
157 }
158
159 static ssize_t show_yenta_registers(struct device *yentadev, struct device_attribute *attr, char *buf)
160 {
161 struct pci_dev *dev = to_pci_dev(yentadev);
162 struct yenta_socket *socket = pci_get_drvdata(dev);
163 int offset = 0, i;
164
165 offset = snprintf(buf, PAGE_SIZE, "CB registers:");
166 for (i = 0; i < 0x24; i += 4) {
167 unsigned val;
168 if (!(i & 15))
169 offset += snprintf(buf + offset, PAGE_SIZE - offset, "\n%02x:", i);
170 val = cb_readl(socket, i);
171 offset += snprintf(buf + offset, PAGE_SIZE - offset, " %08x", val);
172 }
173
174 offset += snprintf(buf + offset, PAGE_SIZE - offset, "\n\nExCA registers:");
175 for (i = 0; i < 0x45; i++) {
176 unsigned char val;
177 if (!(i & 7)) {
178 if (i & 8) {
179 memcpy(buf + offset, " -", 2);
180 offset += 2;
181 } else
182 offset += snprintf(buf + offset, PAGE_SIZE - offset, "\n%02x:", i);
183 }
184 val = exca_readb(socket, i);
185 offset += snprintf(buf + offset, PAGE_SIZE - offset, " %02x", val);
186 }
187 buf[offset++] = '\n';
188 return offset;
189 }
190
191 static DEVICE_ATTR(yenta_registers, S_IRUSR, show_yenta_registers, NULL);
192
193 /*
194 * Ugh, mixed-mode cardbus and 16-bit pccard state: things depend
195 * on what kind of card is inserted..
196 */
197 static int yenta_get_status(struct pcmcia_socket *sock, unsigned int *value)
198 {
199 struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
200 unsigned int val;
201 u32 state = cb_readl(socket, CB_SOCKET_STATE);
202
203 val = (state & CB_3VCARD) ? SS_3VCARD : 0;
204 val |= (state & CB_XVCARD) ? SS_XVCARD : 0;
205 val |= (state & (CB_5VCARD | CB_3VCARD | CB_XVCARD | CB_YVCARD)) ? 0 : SS_PENDING;
206 val |= (state & (CB_CDETECT1 | CB_CDETECT2)) ? SS_PENDING : 0;
207
208
209 if (state & CB_CBCARD) {
210 val |= SS_CARDBUS;
211 val |= (state & CB_CARDSTS) ? SS_STSCHG : 0;
212 val |= (state & (CB_CDETECT1 | CB_CDETECT2)) ? 0 : SS_DETECT;
213 val |= (state & CB_PWRCYCLE) ? SS_POWERON | SS_READY : 0;
214 } else if (state & CB_16BITCARD) {
215 u8 status = exca_readb(socket, I365_STATUS);
216 val |= ((status & I365_CS_DETECT) == I365_CS_DETECT) ? SS_DETECT : 0;
217 if (exca_readb(socket, I365_INTCTL) & I365_PC_IOCARD) {
218 val |= (status & I365_CS_STSCHG) ? 0 : SS_STSCHG;
219 } else {
220 val |= (status & I365_CS_BVD1) ? 0 : SS_BATDEAD;
221 val |= (status & I365_CS_BVD2) ? 0 : SS_BATWARN;
222 }
223 val |= (status & I365_CS_WRPROT) ? SS_WRPROT : 0;
224 val |= (status & I365_CS_READY) ? SS_READY : 0;
225 val |= (status & I365_CS_POWERON) ? SS_POWERON : 0;
226 }
227
228 *value = val;
229 return 0;
230 }
231
232 static void yenta_set_power(struct yenta_socket *socket, socket_state_t *state)
233 {
234 /* some birdges require to use the ExCA registers to power 16bit cards */
235 if (!(cb_readl(socket, CB_SOCKET_STATE) & CB_CBCARD) &&
236 (socket->flags & YENTA_16BIT_POWER_EXCA)) {
237 u8 reg, old;
238 reg = old = exca_readb(socket, I365_POWER);
239 reg &= ~(I365_VCC_MASK | I365_VPP1_MASK | I365_VPP2_MASK);
240
241 /* i82365SL-DF style */
242 if (socket->flags & YENTA_16BIT_POWER_DF) {
243 switch (state->Vcc) {
244 case 33:
245 reg |= I365_VCC_3V;
246 break;
247 case 50:
248 reg |= I365_VCC_5V;
249 break;
250 default:
251 reg = 0;
252 break;
253 }
254 switch (state->Vpp) {
255 case 33:
256 case 50:
257 reg |= I365_VPP1_5V;
258 break;
259 case 120:
260 reg |= I365_VPP1_12V;
261 break;
262 }
263 } else {
264 /* i82365SL-B style */
265 switch (state->Vcc) {
266 case 50:
267 reg |= I365_VCC_5V;
268 break;
269 default:
270 reg = 0;
271 break;
272 }
273 switch (state->Vpp) {
274 case 50:
275 reg |= I365_VPP1_5V | I365_VPP2_5V;
276 break;
277 case 120:
278 reg |= I365_VPP1_12V | I365_VPP2_12V;
279 break;
280 }
281 }
282
283 if (reg != old)
284 exca_writeb(socket, I365_POWER, reg);
285 } else {
286 u32 reg = 0; /* CB_SC_STPCLK? */
287 switch (state->Vcc) {
288 case 33:
289 reg = CB_SC_VCC_3V;
290 break;
291 case 50:
292 reg = CB_SC_VCC_5V;
293 break;
294 default:
295 reg = 0;
296 break;
297 }
298 switch (state->Vpp) {
299 case 33:
300 reg |= CB_SC_VPP_3V;
301 break;
302 case 50:
303 reg |= CB_SC_VPP_5V;
304 break;
305 case 120:
306 reg |= CB_SC_VPP_12V;
307 break;
308 }
309 if (reg != cb_readl(socket, CB_SOCKET_CONTROL))
310 cb_writel(socket, CB_SOCKET_CONTROL, reg);
311 }
312 }
313
314 static int yenta_set_socket(struct pcmcia_socket *sock, socket_state_t *state)
315 {
316 struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
317 u16 bridge;
318
319 /* if powering down: do it immediately */
320 if (state->Vcc == 0)
321 yenta_set_power(socket, state);
322
323 socket->io_irq = state->io_irq;
324 bridge = config_readw(socket, CB_BRIDGE_CONTROL) & ~(CB_BRIDGE_CRST | CB_BRIDGE_INTR);
325 if (cb_readl(socket, CB_SOCKET_STATE) & CB_CBCARD) {
326 u8 intr;
327 bridge |= (state->flags & SS_RESET) ? CB_BRIDGE_CRST : 0;
328
329 /* ISA interrupt control? */
330 intr = exca_readb(socket, I365_INTCTL);
331 intr = (intr & ~0xf);
332 if (!socket->cb_irq) {
333 intr |= state->io_irq;
334 bridge |= CB_BRIDGE_INTR;
335 }
336 exca_writeb(socket, I365_INTCTL, intr);
337 } else {
338 u8 reg;
339
340 reg = exca_readb(socket, I365_INTCTL) & (I365_RING_ENA | I365_INTR_ENA);
341 reg |= (state->flags & SS_RESET) ? 0 : I365_PC_RESET;
342 reg |= (state->flags & SS_IOCARD) ? I365_PC_IOCARD : 0;
343 if (state->io_irq != socket->cb_irq) {
344 reg |= state->io_irq;
345 bridge |= CB_BRIDGE_INTR;
346 }
347 exca_writeb(socket, I365_INTCTL, reg);
348
349 reg = exca_readb(socket, I365_POWER) & (I365_VCC_MASK|I365_VPP1_MASK);
350 reg |= I365_PWR_NORESET;
351 if (state->flags & SS_PWR_AUTO)
352 reg |= I365_PWR_AUTO;
353 if (state->flags & SS_OUTPUT_ENA)
354 reg |= I365_PWR_OUT;
355 if (exca_readb(socket, I365_POWER) != reg)
356 exca_writeb(socket, I365_POWER, reg);
357
358 /* CSC interrupt: no ISA irq for CSC */
359 reg = I365_CSC_DETECT;
360 if (state->flags & SS_IOCARD) {
361 if (state->csc_mask & SS_STSCHG)
362 reg |= I365_CSC_STSCHG;
363 } else {
364 if (state->csc_mask & SS_BATDEAD)
365 reg |= I365_CSC_BVD1;
366 if (state->csc_mask & SS_BATWARN)
367 reg |= I365_CSC_BVD2;
368 if (state->csc_mask & SS_READY)
369 reg |= I365_CSC_READY;
370 }
371 exca_writeb(socket, I365_CSCINT, reg);
372 exca_readb(socket, I365_CSC);
373 if (sock->zoom_video)
374 sock->zoom_video(sock, state->flags & SS_ZVCARD);
375 }
376 config_writew(socket, CB_BRIDGE_CONTROL, bridge);
377 /* Socket event mask: get card insert/remove events.. */
378 cb_writel(socket, CB_SOCKET_EVENT, -1);
379 cb_writel(socket, CB_SOCKET_MASK, CB_CDMASK);
380
381 /* if powering up: do it as the last step when the socket is configured */
382 if (state->Vcc != 0)
383 yenta_set_power(socket, state);
384 return 0;
385 }
386
387 static int yenta_set_io_map(struct pcmcia_socket *sock, struct pccard_io_map *io)
388 {
389 struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
390 int map;
391 unsigned char ioctl, addr, enable;
392
393 map = io->map;
394
395 if (map > 1)
396 return -EINVAL;
397
398 enable = I365_ENA_IO(map);
399 addr = exca_readb(socket, I365_ADDRWIN);
400
401 /* Disable the window before changing it.. */
402 if (addr & enable) {
403 addr &= ~enable;
404 exca_writeb(socket, I365_ADDRWIN, addr);
405 }
406
407 exca_writew(socket, I365_IO(map)+I365_W_START, io->start);
408 exca_writew(socket, I365_IO(map)+I365_W_STOP, io->stop);
409
410 ioctl = exca_readb(socket, I365_IOCTL) & ~I365_IOCTL_MASK(map);
411 if (io->flags & MAP_0WS)
412 ioctl |= I365_IOCTL_0WS(map);
413 if (io->flags & MAP_16BIT)
414 ioctl |= I365_IOCTL_16BIT(map);
415 if (io->flags & MAP_AUTOSZ)
416 ioctl |= I365_IOCTL_IOCS16(map);
417 exca_writeb(socket, I365_IOCTL, ioctl);
418
419 if (io->flags & MAP_ACTIVE)
420 exca_writeb(socket, I365_ADDRWIN, addr | enable);
421 return 0;
422 }
423
424 static int yenta_set_mem_map(struct pcmcia_socket *sock, struct pccard_mem_map *mem)
425 {
426 struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
427 struct pci_bus_region region;
428 int map;
429 unsigned char addr, enable;
430 unsigned int start, stop, card_start;
431 unsigned short word;
432
433 pcibios_resource_to_bus(socket->dev, &region, mem->res);
434
435 map = mem->map;
436 start = region.start;
437 stop = region.end;
438 card_start = mem->card_start;
439
440 if (map > 4 || start > stop || ((start ^ stop) >> 24) ||
441 (card_start >> 26) || mem->speed > 1000)
442 return -EINVAL;
443
444 enable = I365_ENA_MEM(map);
445 addr = exca_readb(socket, I365_ADDRWIN);
446 if (addr & enable) {
447 addr &= ~enable;
448 exca_writeb(socket, I365_ADDRWIN, addr);
449 }
450
451 exca_writeb(socket, CB_MEM_PAGE(map), start >> 24);
452
453 word = (start >> 12) & 0x0fff;
454 if (mem->flags & MAP_16BIT)
455 word |= I365_MEM_16BIT;
456 if (mem->flags & MAP_0WS)
457 word |= I365_MEM_0WS;
458 exca_writew(socket, I365_MEM(map) + I365_W_START, word);
459
460 word = (stop >> 12) & 0x0fff;
461 switch (to_cycles(mem->speed)) {
462 case 0:
463 break;
464 case 1:
465 word |= I365_MEM_WS0;
466 break;
467 case 2:
468 word |= I365_MEM_WS1;
469 break;
470 default:
471 word |= I365_MEM_WS1 | I365_MEM_WS0;
472 break;
473 }
474 exca_writew(socket, I365_MEM(map) + I365_W_STOP, word);
475
476 word = ((card_start - start) >> 12) & 0x3fff;
477 if (mem->flags & MAP_WRPROT)
478 word |= I365_MEM_WRPROT;
479 if (mem->flags & MAP_ATTRIB)
480 word |= I365_MEM_REG;
481 exca_writew(socket, I365_MEM(map) + I365_W_OFF, word);
482
483 if (mem->flags & MAP_ACTIVE)
484 exca_writeb(socket, I365_ADDRWIN, addr | enable);
485 return 0;
486 }
487
488
489
490 static irqreturn_t yenta_interrupt(int irq, void *dev_id)
491 {
492 unsigned int events;
493 struct yenta_socket *socket = (struct yenta_socket *) dev_id;
494 u8 csc;
495 u32 cb_event;
496
497 /* Clear interrupt status for the event */
498 cb_event = cb_readl(socket, CB_SOCKET_EVENT);
499 cb_writel(socket, CB_SOCKET_EVENT, cb_event);
500
501 csc = exca_readb(socket, I365_CSC);
502
503 if (!(cb_event || csc))
504 return IRQ_NONE;
505
506 events = (cb_event & (CB_CD1EVENT | CB_CD2EVENT)) ? SS_DETECT : 0 ;
507 events |= (csc & I365_CSC_DETECT) ? SS_DETECT : 0;
508 if (exca_readb(socket, I365_INTCTL) & I365_PC_IOCARD) {
509 events |= (csc & I365_CSC_STSCHG) ? SS_STSCHG : 0;
510 } else {
511 events |= (csc & I365_CSC_BVD1) ? SS_BATDEAD : 0;
512 events |= (csc & I365_CSC_BVD2) ? SS_BATWARN : 0;
513 events |= (csc & I365_CSC_READY) ? SS_READY : 0;
514 }
515
516 if (events)
517 pcmcia_parse_events(&socket->socket, events);
518
519 return IRQ_HANDLED;
520 }
521
522 static void yenta_interrupt_wrapper(unsigned long data)
523 {
524 struct yenta_socket *socket = (struct yenta_socket *) data;
525
526 yenta_interrupt(0, (void *)socket);
527 socket->poll_timer.expires = jiffies + HZ;
528 add_timer(&socket->poll_timer);
529 }
530
531 static void yenta_clear_maps(struct yenta_socket *socket)
532 {
533 int i;
534 struct resource res = { .start = 0, .end = 0x0fff };
535 pccard_io_map io = { 0, 0, 0, 0, 1 };
536 pccard_mem_map mem = { .res = &res, };
537
538 yenta_set_socket(&socket->socket, &dead_socket);
539 for (i = 0; i < 2; i++) {
540 io.map = i;
541 yenta_set_io_map(&socket->socket, &io);
542 }
543 for (i = 0; i < 5; i++) {
544 mem.map = i;
545 yenta_set_mem_map(&socket->socket, &mem);
546 }
547 }
548
549 /* redoes voltage interrogation if required */
550 static void yenta_interrogate(struct yenta_socket *socket)
551 {
552 u32 state;
553
554 state = cb_readl(socket, CB_SOCKET_STATE);
555 if (!(state & (CB_5VCARD | CB_3VCARD | CB_XVCARD | CB_YVCARD)) ||
556 (state & (CB_CDETECT1 | CB_CDETECT2 | CB_NOTACARD | CB_BADVCCREQ)) ||
557 ((state & (CB_16BITCARD | CB_CBCARD)) == (CB_16BITCARD | CB_CBCARD)))
558 cb_writel(socket, CB_SOCKET_FORCE, CB_CVSTEST);
559 }
560
561 /* Called at resume and initialization events */
562 static int yenta_sock_init(struct pcmcia_socket *sock)
563 {
564 struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
565
566 exca_writeb(socket, I365_GBLCTL, 0x00);
567 exca_writeb(socket, I365_GENCTL, 0x00);
568
569 /* Redo card voltage interrogation */
570 yenta_interrogate(socket);
571
572 yenta_clear_maps(socket);
573
574 if (socket->type && socket->type->sock_init)
575 socket->type->sock_init(socket);
576
577 /* Re-enable CSC interrupts */
578 cb_writel(socket, CB_SOCKET_MASK, CB_CDMASK);
579
580 return 0;
581 }
582
583 static int yenta_sock_suspend(struct pcmcia_socket *sock)
584 {
585 struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
586
587 /* Disable CSC interrupts */
588 cb_writel(socket, CB_SOCKET_MASK, 0x0);
589
590 return 0;
591 }
592
593 /*
594 * Use an adaptive allocation for the memory resource,
595 * sometimes the memory behind pci bridges is limited:
596 * 1/8 of the size of the io window of the parent.
597 * max 4 MB, min 16 kB. We try very hard to not get below
598 * the "ACC" values, though.
599 */
600 #define BRIDGE_MEM_MAX (4*1024*1024)
601 #define BRIDGE_MEM_ACC (128*1024)
602 #define BRIDGE_MEM_MIN (16*1024)
603
604 #define BRIDGE_IO_MAX 512
605 #define BRIDGE_IO_ACC 256
606 #define BRIDGE_IO_MIN 32
607
608 #ifndef PCIBIOS_MIN_CARDBUS_IO
609 #define PCIBIOS_MIN_CARDBUS_IO PCIBIOS_MIN_IO
610 #endif
611
612 static int yenta_search_one_res(struct resource *root, struct resource *res,
613 u32 min)
614 {
615 u32 align, size, start, end;
616
617 if (res->flags & IORESOURCE_IO) {
618 align = 1024;
619 size = BRIDGE_IO_MAX;
620 start = PCIBIOS_MIN_CARDBUS_IO;
621 end = ~0U;
622 } else {
623 unsigned long avail = root->end - root->start;
624 int i;
625 size = BRIDGE_MEM_MAX;
626 if (size > avail/8) {
627 size = (avail+1)/8;
628 /* round size down to next power of 2 */
629 i = 0;
630 while ((size /= 2) != 0)
631 i++;
632 size = 1 << i;
633 }
634 if (size < min)
635 size = min;
636 align = size;
637 start = PCIBIOS_MIN_MEM;
638 end = ~0U;
639 }
640
641 do {
642 if (allocate_resource(root, res, size, start, end, align,
643 NULL, NULL) == 0) {
644 return 1;
645 }
646 size = size/2;
647 align = size;
648 } while (size >= min);
649
650 return 0;
651 }
652
653
654 static int yenta_search_res(struct yenta_socket *socket, struct resource *res,
655 u32 min)
656 {
657 struct resource *root;
658 int i;
659
660 pci_bus_for_each_resource(socket->dev->bus, root, i) {
661 if (!root)
662 continue;
663
664 if ((res->flags ^ root->flags) &
665 (IORESOURCE_IO | IORESOURCE_MEM | IORESOURCE_PREFETCH))
666 continue; /* Wrong type */
667
668 if (yenta_search_one_res(root, res, min))
669 return 1;
670 }
671 return 0;
672 }
673
674 static int yenta_allocate_res(struct yenta_socket *socket, int nr, unsigned type, int addr_start, int addr_end)
675 {
676 struct pci_dev *dev = socket->dev;
677 struct resource *res;
678 struct pci_bus_region region;
679 unsigned mask;
680
681 res = dev->resource + PCI_BRIDGE_RESOURCES + nr;
682 /* Already allocated? */
683 if (res->parent)
684 return 0;
685
686 /* The granularity of the memory limit is 4kB, on IO it's 4 bytes */
687 mask = ~0xfff;
688 if (type & IORESOURCE_IO)
689 mask = ~3;
690
691 res->name = dev->subordinate->name;
692 res->flags = type;
693
694 region.start = config_readl(socket, addr_start) & mask;
695 region.end = config_readl(socket, addr_end) | ~mask;
696 if (region.start && region.end > region.start && !override_bios) {
697 pcibios_bus_to_resource(dev, res, &region);
698 if (pci_claim_resource(dev, PCI_BRIDGE_RESOURCES + nr) == 0)
699 return 0;
700 dev_printk(KERN_INFO, &dev->dev,
701 "Preassigned resource %d busy or not available, "
702 "reconfiguring...\n",
703 nr);
704 }
705
706 if (type & IORESOURCE_IO) {
707 if ((yenta_search_res(socket, res, BRIDGE_IO_MAX)) ||
708 (yenta_search_res(socket, res, BRIDGE_IO_ACC)) ||
709 (yenta_search_res(socket, res, BRIDGE_IO_MIN)))
710 return 1;
711 } else {
712 if (type & IORESOURCE_PREFETCH) {
713 if ((yenta_search_res(socket, res, BRIDGE_MEM_MAX)) ||
714 (yenta_search_res(socket, res, BRIDGE_MEM_ACC)) ||
715 (yenta_search_res(socket, res, BRIDGE_MEM_MIN)))
716 return 1;
717 /* Approximating prefetchable by non-prefetchable */
718 res->flags = IORESOURCE_MEM;
719 }
720 if ((yenta_search_res(socket, res, BRIDGE_MEM_MAX)) ||
721 (yenta_search_res(socket, res, BRIDGE_MEM_ACC)) ||
722 (yenta_search_res(socket, res, BRIDGE_MEM_MIN)))
723 return 1;
724 }
725
726 dev_printk(KERN_INFO, &dev->dev,
727 "no resource of type %x available, trying to continue...\n",
728 type);
729 res->start = res->end = res->flags = 0;
730 return 0;
731 }
732
733 /*
734 * Allocate the bridge mappings for the device..
735 */
736 static void yenta_allocate_resources(struct yenta_socket *socket)
737 {
738 int program = 0;
739 program += yenta_allocate_res(socket, 0, IORESOURCE_IO,
740 PCI_CB_IO_BASE_0, PCI_CB_IO_LIMIT_0);
741 program += yenta_allocate_res(socket, 1, IORESOURCE_IO,
742 PCI_CB_IO_BASE_1, PCI_CB_IO_LIMIT_1);
743 program += yenta_allocate_res(socket, 2, IORESOURCE_MEM|IORESOURCE_PREFETCH,
744 PCI_CB_MEMORY_BASE_0, PCI_CB_MEMORY_LIMIT_0);
745 program += yenta_allocate_res(socket, 3, IORESOURCE_MEM,
746 PCI_CB_MEMORY_BASE_1, PCI_CB_MEMORY_LIMIT_1);
747 if (program)
748 pci_setup_cardbus(socket->dev->subordinate);
749 }
750
751
752 /*
753 * Free the bridge mappings for the device..
754 */
755 static void yenta_free_resources(struct yenta_socket *socket)
756 {
757 int i;
758 for (i = 0; i < 4; i++) {
759 struct resource *res;
760 res = socket->dev->resource + PCI_BRIDGE_RESOURCES + i;
761 if (res->start != 0 && res->end != 0)
762 release_resource(res);
763 res->start = res->end = res->flags = 0;
764 }
765 }
766
767
768 /*
769 * Close it down - release our resources and go home..
770 */
771 static void __devexit yenta_close(struct pci_dev *dev)
772 {
773 struct yenta_socket *sock = pci_get_drvdata(dev);
774
775 /* Remove the register attributes */
776 device_remove_file(&dev->dev, &dev_attr_yenta_registers);
777
778 /* we don't want a dying socket registered */
779 pcmcia_unregister_socket(&sock->socket);
780
781 /* Disable all events so we don't die in an IRQ storm */
782 cb_writel(sock, CB_SOCKET_MASK, 0x0);
783 exca_writeb(sock, I365_CSCINT, 0);
784
785 if (sock->cb_irq)
786 free_irq(sock->cb_irq, sock);
787 else
788 del_timer_sync(&sock->poll_timer);
789
790 if (sock->base)
791 iounmap(sock->base);
792 yenta_free_resources(sock);
793
794 pci_release_regions(dev);
795 pci_disable_device(dev);
796 pci_set_drvdata(dev, NULL);
797 }
798
799
800 static struct pccard_operations yenta_socket_operations = {
801 .init = yenta_sock_init,
802 .suspend = yenta_sock_suspend,
803 .get_status = yenta_get_status,
804 .set_socket = yenta_set_socket,
805 .set_io_map = yenta_set_io_map,
806 .set_mem_map = yenta_set_mem_map,
807 };
808
809
810 #ifdef CONFIG_YENTA_TI
811 #include "ti113x.h"
812 #endif
813 #ifdef CONFIG_YENTA_RICOH
814 #include "ricoh.h"
815 #endif
816 #ifdef CONFIG_YENTA_TOSHIBA
817 #include "topic.h"
818 #endif
819 #ifdef CONFIG_YENTA_O2
820 #include "o2micro.h"
821 #endif
822
823 enum {
824 CARDBUS_TYPE_DEFAULT = -1,
825 CARDBUS_TYPE_TI,
826 CARDBUS_TYPE_TI113X,
827 CARDBUS_TYPE_TI12XX,
828 CARDBUS_TYPE_TI1250,
829 CARDBUS_TYPE_RICOH,
830 CARDBUS_TYPE_TOPIC95,
831 CARDBUS_TYPE_TOPIC97,
832 CARDBUS_TYPE_O2MICRO,
833 CARDBUS_TYPE_ENE,
834 };
835
836 /*
837 * Different cardbus controllers have slightly different
838 * initialization sequences etc details. List them here..
839 */
840 static struct cardbus_type cardbus_type[] = {
841 #ifdef CONFIG_YENTA_TI
842 [CARDBUS_TYPE_TI] = {
843 .override = ti_override,
844 .save_state = ti_save_state,
845 .restore_state = ti_restore_state,
846 .sock_init = ti_init,
847 },
848 [CARDBUS_TYPE_TI113X] = {
849 .override = ti113x_override,
850 .save_state = ti_save_state,
851 .restore_state = ti_restore_state,
852 .sock_init = ti_init,
853 },
854 [CARDBUS_TYPE_TI12XX] = {
855 .override = ti12xx_override,
856 .save_state = ti_save_state,
857 .restore_state = ti_restore_state,
858 .sock_init = ti_init,
859 },
860 [CARDBUS_TYPE_TI1250] = {
861 .override = ti1250_override,
862 .save_state = ti_save_state,
863 .restore_state = ti_restore_state,
864 .sock_init = ti_init,
865 },
866 #endif
867 #ifdef CONFIG_YENTA_RICOH
868 [CARDBUS_TYPE_RICOH] = {
869 .override = ricoh_override,
870 .save_state = ricoh_save_state,
871 .restore_state = ricoh_restore_state,
872 },
873 #endif
874 #ifdef CONFIG_YENTA_TOSHIBA
875 [CARDBUS_TYPE_TOPIC95] = {
876 .override = topic95_override,
877 },
878 [CARDBUS_TYPE_TOPIC97] = {
879 .override = topic97_override,
880 },
881 #endif
882 #ifdef CONFIG_YENTA_O2
883 [CARDBUS_TYPE_O2MICRO] = {
884 .override = o2micro_override,
885 .restore_state = o2micro_restore_state,
886 },
887 #endif
888 #ifdef CONFIG_YENTA_TI
889 [CARDBUS_TYPE_ENE] = {
890 .override = ene_override,
891 .save_state = ti_save_state,
892 .restore_state = ti_restore_state,
893 .sock_init = ti_init,
894 },
895 #endif
896 };
897
898
899 /*
900 * Only probe "regular" interrupts, don't
901 * touch dangerous spots like the mouse irq,
902 * because there are mice that apparently
903 * get really confused if they get fondled
904 * too intimately.
905 *
906 * Default to 11, 10, 9, 7, 6, 5, 4, 3.
907 */
908 static u32 isa_interrupts = 0x0ef8;
909
910 static unsigned int yenta_probe_irq(struct yenta_socket *socket, u32 isa_irq_mask)
911 {
912 int i;
913 unsigned long val;
914 u32 mask;
915
916 /*
917 * Probe for usable interrupts using the force
918 * register to generate bogus card status events.
919 */
920 cb_writel(socket, CB_SOCKET_EVENT, -1);
921 cb_writel(socket, CB_SOCKET_MASK, CB_CSTSMASK);
922 exca_writeb(socket, I365_CSCINT, 0);
923 val = probe_irq_on() & isa_irq_mask;
924 for (i = 1; i < 16; i++) {
925 if (!((val >> i) & 1))
926 continue;
927 exca_writeb(socket, I365_CSCINT, I365_CSC_STSCHG | (i << 4));
928 cb_writel(socket, CB_SOCKET_FORCE, CB_FCARDSTS);
929 udelay(100);
930 cb_writel(socket, CB_SOCKET_EVENT, -1);
931 }
932 cb_writel(socket, CB_SOCKET_MASK, 0);
933 exca_writeb(socket, I365_CSCINT, 0);
934
935 mask = probe_irq_mask(val) & 0xffff;
936
937 return mask;
938 }
939
940
941 /*
942 * yenta PCI irq probing.
943 * currently only used in the TI/EnE initialization code
944 */
945 #ifdef CONFIG_YENTA_TI
946
947 /* interrupt handler, only used during probing */
948 static irqreturn_t yenta_probe_handler(int irq, void *dev_id)
949 {
950 struct yenta_socket *socket = (struct yenta_socket *) dev_id;
951 u8 csc;
952 u32 cb_event;
953
954 /* Clear interrupt status for the event */
955 cb_event = cb_readl(socket, CB_SOCKET_EVENT);
956 cb_writel(socket, CB_SOCKET_EVENT, -1);
957 csc = exca_readb(socket, I365_CSC);
958
959 if (cb_event || csc) {
960 socket->probe_status = 1;
961 return IRQ_HANDLED;
962 }
963
964 return IRQ_NONE;
965 }
966
967 /* probes the PCI interrupt, use only on override functions */
968 static int yenta_probe_cb_irq(struct yenta_socket *socket)
969 {
970 if (!socket->cb_irq)
971 return -1;
972
973 socket->probe_status = 0;
974
975 if (request_irq(socket->cb_irq, yenta_probe_handler, IRQF_SHARED, "yenta", socket)) {
976 dev_printk(KERN_WARNING, &socket->dev->dev,
977 "request_irq() in yenta_probe_cb_irq() failed!\n");
978 return -1;
979 }
980
981 /* generate interrupt, wait */
982 exca_writeb(socket, I365_CSCINT, I365_CSC_STSCHG);
983 cb_writel(socket, CB_SOCKET_EVENT, -1);
984 cb_writel(socket, CB_SOCKET_MASK, CB_CSTSMASK);
985 cb_writel(socket, CB_SOCKET_FORCE, CB_FCARDSTS);
986
987 msleep(100);
988
989 /* disable interrupts */
990 cb_writel(socket, CB_SOCKET_MASK, 0);
991 exca_writeb(socket, I365_CSCINT, 0);
992 cb_writel(socket, CB_SOCKET_EVENT, -1);
993 exca_readb(socket, I365_CSC);
994
995 free_irq(socket->cb_irq, socket);
996
997 return (int) socket->probe_status;
998 }
999
1000 #endif /* CONFIG_YENTA_TI */
1001
1002
1003 /*
1004 * Set static data that doesn't need re-initializing..
1005 */
1006 static void yenta_get_socket_capabilities(struct yenta_socket *socket, u32 isa_irq_mask)
1007 {
1008 socket->socket.pci_irq = socket->cb_irq;
1009 if (isa_probe)
1010 socket->socket.irq_mask = yenta_probe_irq(socket, isa_irq_mask);
1011 else
1012 socket->socket.irq_mask = 0;
1013
1014 dev_printk(KERN_INFO, &socket->dev->dev,
1015 "ISA IRQ mask 0x%04x, PCI irq %d\n",
1016 socket->socket.irq_mask, socket->cb_irq);
1017 }
1018
1019 /*
1020 * Initialize the standard cardbus registers
1021 */
1022 static void yenta_config_init(struct yenta_socket *socket)
1023 {
1024 u16 bridge;
1025 struct pci_dev *dev = socket->dev;
1026 struct pci_bus_region region;
1027
1028 pcibios_resource_to_bus(socket->dev, &region, &dev->resource[0]);
1029
1030 config_writel(socket, CB_LEGACY_MODE_BASE, 0);
1031 config_writel(socket, PCI_BASE_ADDRESS_0, region.start);
1032 config_writew(socket, PCI_COMMAND,
1033 PCI_COMMAND_IO |
1034 PCI_COMMAND_MEMORY |
1035 PCI_COMMAND_MASTER |
1036 PCI_COMMAND_WAIT);
1037
1038 /* MAGIC NUMBERS! Fixme */
1039 config_writeb(socket, PCI_CACHE_LINE_SIZE, L1_CACHE_BYTES / 4);
1040 config_writeb(socket, PCI_LATENCY_TIMER, 168);
1041 config_writel(socket, PCI_PRIMARY_BUS,
1042 (176 << 24) | /* sec. latency timer */
1043 (dev->subordinate->subordinate << 16) | /* subordinate bus */
1044 (dev->subordinate->secondary << 8) | /* secondary bus */
1045 dev->subordinate->primary); /* primary bus */
1046
1047 /*
1048 * Set up the bridging state:
1049 * - enable write posting.
1050 * - memory window 0 prefetchable, window 1 non-prefetchable
1051 * - PCI interrupts enabled if a PCI interrupt exists..
1052 */
1053 bridge = config_readw(socket, CB_BRIDGE_CONTROL);
1054 bridge &= ~(CB_BRIDGE_CRST | CB_BRIDGE_PREFETCH1 | CB_BRIDGE_ISAEN | CB_BRIDGE_VGAEN);
1055 bridge |= CB_BRIDGE_PREFETCH0 | CB_BRIDGE_POSTEN;
1056 config_writew(socket, CB_BRIDGE_CONTROL, bridge);
1057 }
1058
1059 /**
1060 * yenta_fixup_parent_bridge - Fix subordinate bus# of the parent bridge
1061 * @cardbus_bridge: The PCI bus which the CardBus bridge bridges to
1062 *
1063 * Checks if devices on the bus which the CardBus bridge bridges to would be
1064 * invisible during PCI scans because of a misconfigured subordinate number
1065 * of the parent brige - some BIOSes seem to be too lazy to set it right.
1066 * Does the fixup carefully by checking how far it can go without conflicts.
1067 * See http\://bugzilla.kernel.org/show_bug.cgi?id=2944 for more information.
1068 */
1069 static void yenta_fixup_parent_bridge(struct pci_bus *cardbus_bridge)
1070 {
1071 struct list_head *tmp;
1072 unsigned char upper_limit;
1073 /*
1074 * We only check and fix the parent bridge: All systems which need
1075 * this fixup that have been reviewed are laptops and the only bridge
1076 * which needed fixing was the parent bridge of the CardBus bridge:
1077 */
1078 struct pci_bus *bridge_to_fix = cardbus_bridge->parent;
1079
1080 /* Check bus numbers are already set up correctly: */
1081 if (bridge_to_fix->subordinate >= cardbus_bridge->subordinate)
1082 return; /* The subordinate number is ok, nothing to do */
1083
1084 if (!bridge_to_fix->parent)
1085 return; /* Root bridges are ok */
1086
1087 /* stay within the limits of the bus range of the parent: */
1088 upper_limit = bridge_to_fix->parent->subordinate;
1089
1090 /* check the bus ranges of all silbling bridges to prevent overlap */
1091 list_for_each(tmp, &bridge_to_fix->parent->children) {
1092 struct pci_bus *silbling = pci_bus_b(tmp);
1093 /*
1094 * If the silbling has a higher secondary bus number
1095 * and it's secondary is equal or smaller than our
1096 * current upper limit, set the new upper limit to
1097 * the bus number below the silbling's range:
1098 */
1099 if (silbling->secondary > bridge_to_fix->subordinate
1100 && silbling->secondary <= upper_limit)
1101 upper_limit = silbling->secondary - 1;
1102 }
1103
1104 /* Show that the wanted subordinate number is not possible: */
1105 if (cardbus_bridge->subordinate > upper_limit)
1106 dev_printk(KERN_WARNING, &cardbus_bridge->dev,
1107 "Upper limit for fixing this "
1108 "bridge's parent bridge: #%02x\n", upper_limit);
1109
1110 /* If we have room to increase the bridge's subordinate number, */
1111 if (bridge_to_fix->subordinate < upper_limit) {
1112
1113 /* use the highest number of the hidden bus, within limits */
1114 unsigned char subordinate_to_assign =
1115 min(cardbus_bridge->subordinate, upper_limit);
1116
1117 dev_printk(KERN_INFO, &bridge_to_fix->dev,
1118 "Raising subordinate bus# of parent "
1119 "bus (#%02x) from #%02x to #%02x\n",
1120 bridge_to_fix->number,
1121 bridge_to_fix->subordinate, subordinate_to_assign);
1122
1123 /* Save the new subordinate in the bus struct of the bridge */
1124 bridge_to_fix->subordinate = subordinate_to_assign;
1125
1126 /* and update the PCI config space with the new subordinate */
1127 pci_write_config_byte(bridge_to_fix->self,
1128 PCI_SUBORDINATE_BUS, bridge_to_fix->subordinate);
1129 }
1130 }
1131
1132 /*
1133 * Initialize a cardbus controller. Make sure we have a usable
1134 * interrupt, and that we can map the cardbus area. Fill in the
1135 * socket information structure..
1136 */
1137 static int __devinit yenta_probe(struct pci_dev *dev, const struct pci_device_id *id)
1138 {
1139 struct yenta_socket *socket;
1140 int ret;
1141
1142 /*
1143 * If we failed to assign proper bus numbers for this cardbus
1144 * controller during PCI probe, its subordinate pci_bus is NULL.
1145 * Bail out if so.
1146 */
1147 if (!dev->subordinate) {
1148 dev_printk(KERN_ERR, &dev->dev, "no bus associated! "
1149 "(try 'pci=assign-busses')\n");
1150 return -ENODEV;
1151 }
1152
1153 socket = kzalloc(sizeof(struct yenta_socket), GFP_KERNEL);
1154 if (!socket)
1155 return -ENOMEM;
1156
1157 /* prepare pcmcia_socket */
1158 socket->socket.ops = &yenta_socket_operations;
1159 socket->socket.resource_ops = &pccard_nonstatic_ops;
1160 socket->socket.dev.parent = &dev->dev;
1161 socket->socket.driver_data = socket;
1162 socket->socket.owner = THIS_MODULE;
1163 socket->socket.features = SS_CAP_PAGE_REGS | SS_CAP_PCCARD;
1164 socket->socket.map_size = 0x1000;
1165 socket->socket.cb_dev = dev;
1166
1167 /* prepare struct yenta_socket */
1168 socket->dev = dev;
1169 pci_set_drvdata(dev, socket);
1170
1171 /*
1172 * Do some basic sanity checking..
1173 */
1174 if (pci_enable_device(dev)) {
1175 ret = -EBUSY;
1176 goto free;
1177 }
1178
1179 ret = pci_request_regions(dev, "yenta_socket");
1180 if (ret)
1181 goto disable;
1182
1183 if (!pci_resource_start(dev, 0)) {
1184 dev_printk(KERN_ERR, &dev->dev, "No cardbus resource!\n");
1185 ret = -ENODEV;
1186 goto release;
1187 }
1188
1189 /*
1190 * Ok, start setup.. Map the cardbus registers,
1191 * and request the IRQ.
1192 */
1193 socket->base = ioremap(pci_resource_start(dev, 0), 0x1000);
1194 if (!socket->base) {
1195 ret = -ENOMEM;
1196 goto release;
1197 }
1198
1199 /*
1200 * report the subsystem vendor and device for help debugging
1201 * the irq stuff...
1202 */
1203 dev_printk(KERN_INFO, &dev->dev, "CardBus bridge found [%04x:%04x]\n",
1204 dev->subsystem_vendor, dev->subsystem_device);
1205
1206 yenta_config_init(socket);
1207
1208 /* Disable all events */
1209 cb_writel(socket, CB_SOCKET_MASK, 0x0);
1210
1211 /* Set up the bridge regions.. */
1212 yenta_allocate_resources(socket);
1213
1214 socket->cb_irq = dev->irq;
1215
1216 /* Do we have special options for the device? */
1217 if (id->driver_data != CARDBUS_TYPE_DEFAULT &&
1218 id->driver_data < ARRAY_SIZE(cardbus_type)) {
1219 socket->type = &cardbus_type[id->driver_data];
1220
1221 ret = socket->type->override(socket);
1222 if (ret < 0)
1223 goto unmap;
1224 }
1225
1226 /* We must finish initialization here */
1227
1228 if (!socket->cb_irq || request_irq(socket->cb_irq, yenta_interrupt, IRQF_SHARED, "yenta", socket)) {
1229 /* No IRQ or request_irq failed. Poll */
1230 socket->cb_irq = 0; /* But zero is a valid IRQ number. */
1231 init_timer(&socket->poll_timer);
1232 socket->poll_timer.function = yenta_interrupt_wrapper;
1233 socket->poll_timer.data = (unsigned long)socket;
1234 socket->poll_timer.expires = jiffies + HZ;
1235 add_timer(&socket->poll_timer);
1236 dev_printk(KERN_INFO, &dev->dev,
1237 "no PCI IRQ, CardBus support disabled for this "
1238 "socket.\n");
1239 dev_printk(KERN_INFO, &dev->dev,
1240 "check your BIOS CardBus, BIOS IRQ or ACPI "
1241 "settings.\n");
1242 } else {
1243 socket->socket.features |= SS_CAP_CARDBUS;
1244 }
1245
1246 /* Figure out what the dang thing can do for the PCMCIA layer... */
1247 yenta_interrogate(socket);
1248 yenta_get_socket_capabilities(socket, isa_interrupts);
1249 dev_printk(KERN_INFO, &dev->dev,
1250 "Socket status: %08x\n", cb_readl(socket, CB_SOCKET_STATE));
1251
1252 yenta_fixup_parent_bridge(dev->subordinate);
1253
1254 /* Register it with the pcmcia layer.. */
1255 ret = pcmcia_register_socket(&socket->socket);
1256 if (ret == 0) {
1257 /* Add the yenta register attributes */
1258 ret = device_create_file(&dev->dev, &dev_attr_yenta_registers);
1259 if (ret == 0)
1260 goto out;
1261
1262 /* error path... */
1263 pcmcia_unregister_socket(&socket->socket);
1264 }
1265
1266 unmap:
1267 iounmap(socket->base);
1268 release:
1269 pci_release_regions(dev);
1270 disable:
1271 pci_disable_device(dev);
1272 free:
1273 kfree(socket);
1274 out:
1275 return ret;
1276 }
1277
1278 #ifdef CONFIG_PM
1279 static int yenta_dev_suspend_noirq(struct device *dev)
1280 {
1281 struct pci_dev *pdev = to_pci_dev(dev);
1282 struct yenta_socket *socket = pci_get_drvdata(pdev);
1283 int ret;
1284
1285 ret = pcmcia_socket_dev_suspend(dev);
1286
1287 if (!socket)
1288 return ret;
1289
1290 if (socket->type && socket->type->save_state)
1291 socket->type->save_state(socket);
1292
1293 pci_save_state(pdev);
1294 pci_read_config_dword(pdev, 16*4, &socket->saved_state[0]);
1295 pci_read_config_dword(pdev, 17*4, &socket->saved_state[1]);
1296 pci_disable_device(pdev);
1297
1298 /*
1299 * Some laptops (IBM T22) do not like us putting the Cardbus
1300 * bridge into D3. At a guess, some other laptop will
1301 * probably require this, so leave it commented out for now.
1302 */
1303 /* pci_set_power_state(dev, 3); */
1304
1305 return ret;
1306 }
1307
1308 static int yenta_dev_resume_noirq(struct device *dev)
1309 {
1310 struct pci_dev *pdev = to_pci_dev(dev);
1311 struct yenta_socket *socket = pci_get_drvdata(pdev);
1312 int ret;
1313
1314 if (!socket)
1315 return 0;
1316
1317 pci_write_config_dword(pdev, 16*4, socket->saved_state[0]);
1318 pci_write_config_dword(pdev, 17*4, socket->saved_state[1]);
1319
1320 ret = pci_enable_device(pdev);
1321 if (ret)
1322 return ret;
1323
1324 pci_set_master(pdev);
1325
1326 if (socket->type && socket->type->restore_state)
1327 socket->type->restore_state(socket);
1328
1329 pcmcia_socket_dev_early_resume(dev);
1330 return 0;
1331 }
1332
1333 static int yenta_dev_resume(struct device *dev)
1334 {
1335 pcmcia_socket_dev_late_resume(dev);
1336 return 0;
1337 }
1338
1339 static const struct dev_pm_ops yenta_pm_ops = {
1340 .suspend_noirq = yenta_dev_suspend_noirq,
1341 .resume_noirq = yenta_dev_resume_noirq,
1342 .resume = yenta_dev_resume,
1343 .freeze_noirq = yenta_dev_suspend_noirq,
1344 .thaw_noirq = yenta_dev_resume_noirq,
1345 .thaw = yenta_dev_resume,
1346 .poweroff_noirq = yenta_dev_suspend_noirq,
1347 .restore_noirq = yenta_dev_resume_noirq,
1348 .restore = yenta_dev_resume,
1349 };
1350
1351 #define YENTA_PM_OPS (&yenta_pm_ops)
1352 #else
1353 #define YENTA_PM_OPS NULL
1354 #endif
1355
1356 #define CB_ID(vend, dev, type) \
1357 { \
1358 .vendor = vend, \
1359 .device = dev, \
1360 .subvendor = PCI_ANY_ID, \
1361 .subdevice = PCI_ANY_ID, \
1362 .class = PCI_CLASS_BRIDGE_CARDBUS << 8, \
1363 .class_mask = ~0, \
1364 .driver_data = CARDBUS_TYPE_##type, \
1365 }
1366
1367 static struct pci_device_id yenta_table[] = {
1368 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1031, TI),
1369
1370 /*
1371 * TBD: Check if these TI variants can use more
1372 * advanced overrides instead. (I can't get the
1373 * data sheets for these devices. --rmk)
1374 */
1375 #ifdef CONFIG_YENTA_TI
1376 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1210, TI),
1377
1378 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1130, TI113X),
1379 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1131, TI113X),
1380
1381 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1211, TI12XX),
1382 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1220, TI12XX),
1383 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1221, TI12XX),
1384 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1225, TI12XX),
1385 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1251A, TI12XX),
1386 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1251B, TI12XX),
1387 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1420, TI12XX),
1388 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1450, TI12XX),
1389 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1451A, TI12XX),
1390 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1510, TI12XX),
1391 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1520, TI12XX),
1392 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1620, TI12XX),
1393 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4410, TI12XX),
1394 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4450, TI12XX),
1395 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4451, TI12XX),
1396 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4510, TI12XX),
1397 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4520, TI12XX),
1398
1399 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1250, TI1250),
1400 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1410, TI1250),
1401
1402 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_XX21_XX11, TI12XX),
1403 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_X515, TI12XX),
1404 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_XX12, TI12XX),
1405 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_X420, TI12XX),
1406 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_X620, TI12XX),
1407 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_7410, TI12XX),
1408 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_7510, TI12XX),
1409 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_7610, TI12XX),
1410
1411 CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_710, TI12XX),
1412 CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_712, TI12XX),
1413 CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_720, TI12XX),
1414 CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_722, TI12XX),
1415 CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1211, ENE),
1416 CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1225, ENE),
1417 CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1410, ENE),
1418 CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1420, ENE),
1419 #endif /* CONFIG_YENTA_TI */
1420
1421 #ifdef CONFIG_YENTA_RICOH
1422 CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C465, RICOH),
1423 CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C466, RICOH),
1424 CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C475, RICOH),
1425 CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C476, RICOH),
1426 CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C478, RICOH),
1427 #endif
1428
1429 #ifdef CONFIG_YENTA_TOSHIBA
1430 CB_ID(PCI_VENDOR_ID_TOSHIBA, PCI_DEVICE_ID_TOSHIBA_TOPIC95, TOPIC95),
1431 CB_ID(PCI_VENDOR_ID_TOSHIBA, PCI_DEVICE_ID_TOSHIBA_TOPIC97, TOPIC97),
1432 CB_ID(PCI_VENDOR_ID_TOSHIBA, PCI_DEVICE_ID_TOSHIBA_TOPIC100, TOPIC97),
1433 #endif
1434
1435 #ifdef CONFIG_YENTA_O2
1436 CB_ID(PCI_VENDOR_ID_O2, PCI_ANY_ID, O2MICRO),
1437 #endif
1438
1439 /* match any cardbus bridge */
1440 CB_ID(PCI_ANY_ID, PCI_ANY_ID, DEFAULT),
1441 { /* all zeroes */ }
1442 };
1443 MODULE_DEVICE_TABLE(pci, yenta_table);
1444
1445
1446 static struct pci_driver yenta_cardbus_driver = {
1447 .name = "yenta_cardbus",
1448 .id_table = yenta_table,
1449 .probe = yenta_probe,
1450 .remove = __devexit_p(yenta_close),
1451 .driver.pm = YENTA_PM_OPS,
1452 };
1453
1454
1455 static int __init yenta_socket_init(void)
1456 {
1457 return pci_register_driver(&yenta_cardbus_driver);
1458 }
1459
1460
1461 static void __exit yenta_socket_exit(void)
1462 {
1463 pci_unregister_driver(&yenta_cardbus_driver);
1464 }
1465
1466
1467 module_init(yenta_socket_init);
1468 module_exit(yenta_socket_exit);
1469
1470 MODULE_LICENSE("GPL");
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree