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resubmit: cciss: procfs updates to display info about many
[linux-2.6-block.git] / drivers / pcmcia / yenta_socket.c
CommitLineData
1da177e4
LT		 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>
1da177e4
LT		 15#include <linux/workqueue.h>
16#include <linux/interrupt.h>
17#include <linux/delay.h>
18#include <linux/module.h>
19
1da177e4
LT		 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
29static int disable_clkrun;
30module_param(disable_clkrun, bool, 0444);
31MODULE_PARM_DESC(disable_clkrun, "If PC card doesn't function properly, please try this option");
32
fa912bcb
DR		 33static int 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 int 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
1da177e4
LT		 41#if 0
42#define debug(x,args...) printk(KERN_DEBUG "%s: " x, __func__ , ##args)
43#else
44#define debug(x,args...)
45#endif
46
47/* Don't ask.. */
48#define to_cycles(ns) ((ns)/120)
49#define to_ns(cycles) ((cycles)*120)
50
78187865 51/*
63e7ebd0
DR		 52 * yenta PCI irq probing.
53 * currently only used in the TI/EnE initialization code
54 */
55#ifdef CONFIG_YENTA_TI
1da177e4 56static int yenta_probe_cb_irq(struct yenta_socket *socket);
63e7ebd0 57#endif
1da177e4
LT		 58
59
60static unsigned int override_bios;
61module_param(override_bios, uint, 0000);
62MODULE_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 */
69static inline u32 cb_readl(struct yenta_socket *socket, unsigned reg)
70{
71 u32 val = readl(socket->base + reg);
72 debug("%p %04x %08x\n", socket, reg, val);
73 return val;
74}
75
76static inline void cb_writel(struct yenta_socket *socket, unsigned reg, u32 val)
77{
78 debug("%p %04x %08x\n", socket, reg, val);
79 writel(val, socket->base + reg);
c8751e4c 80 readl(socket->base + reg); /* avoid problems with PCI write posting */
1da177e4
LT		 81}
82
83static 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("%p %04x %02x\n", socket, offset, val);
88 return val;
89}
90
91static 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("%p %04x %04x\n", socket, offset, val);
96 return val;
97}
98
99static 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("%p %04x %08x\n", socket, offset, val);
104 return val;
105}
106
107static inline void config_writeb(struct yenta_socket *socket, unsigned offset, u8 val)
108{
109 debug("%p %04x %02x\n", socket, offset, val);
110 pci_write_config_byte(socket->dev, offset, val);
111}
112
113static inline void config_writew(struct yenta_socket *socket, unsigned offset, u16 val)
114{
115 debug("%p %04x %04x\n", socket, offset, val);
116 pci_write_config_word(socket->dev, offset, val);
117}
118
119static inline void config_writel(struct yenta_socket *socket, unsigned offset, u32 val)
120{
121 debug("%p %04x %08x\n", socket, offset, val);
122 pci_write_config_dword(socket->dev, offset, val);
123}
124
125static inline u8 exca_readb(struct yenta_socket *socket, unsigned reg)
126{
127 u8 val = readb(socket->base + 0x800 + reg);
128 debug("%p %04x %02x\n", socket, reg, val);
129 return val;
130}
131
132static 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("%p %04x %04x\n", socket, reg, val);
138 return val;
139}
140
141static inline void exca_writeb(struct yenta_socket *socket, unsigned reg, u8 val)
142{
143 debug("%p %04x %02x\n", socket, reg, val);
144 writeb(val, socket->base + 0x800 + reg);
c8751e4c 145 readb(socket->base + 0x800 + reg); /* PCI write posting... */
1da177e4
LT		 146}
147
148static void exca_writew(struct yenta_socket *socket, unsigned reg, u16 val)
149{
150 debug("%p %04x %04x\n", socket, reg, val);
151 writeb(val, socket->base + 0x800 + reg);
152 writeb(val >> 8, socket->base + 0x800 + reg + 1);
c8751e4c
DR		 153
154 /* PCI write posting... */
155 readb(socket->base + 0x800 + reg);
156 readb(socket->base + 0x800 + reg + 1);
1da177e4
LT		 157}
158
030ee39c
LT		 159static 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
191static DEVICE_ATTR(yenta_registers, S_IRUSR, show_yenta_registers, NULL);
192
1da177e4
LT		 193/*
194 * Ugh, mixed-mode cardbus and 16-bit pccard state: things depend
195 * on what kind of card is inserted..
196 */
197static 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;
fa912bcb
DR		 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
1da177e4
LT		 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;
fa912bcb 214 } else if (state & CB_16BITCARD) {
1da177e4
LT		 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
1da177e4
LT		 232static void yenta_set_power(struct yenta_socket *socket, socket_state_t *state)
233{
ea2f1590
DR		 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: reg |= I365_VCC_3V; break;
245 case 50: reg |= I365_VCC_5V; break;
246 default: reg = 0; break;
247 }
248 switch (state->Vpp) {
249 case 33:
250 case 50: reg |= I365_VPP1_5V; break;
251 case 120: reg |= I365_VPP1_12V; break;
252 }
253 } else {
254 /* i82365SL-B style */
255 switch (state->Vcc) {
256 case 50: reg |= I365_VCC_5V; break;
257 default: reg = 0; break;
258 }
259 switch (state->Vpp) {
260 case 50: reg |= I365_VPP1_5V | I365_VPP2_5V; break;
261 case 120: reg |= I365_VPP1_12V | I365_VPP2_12V; break;
262 }
263 }
264
265 if (reg != old)
266 exca_writeb(socket, I365_POWER, reg);
267 } else {
268 u32 reg = 0; /* CB_SC_STPCLK? */
269 switch (state->Vcc) {
270 case 33: reg = CB_SC_VCC_3V; break;
271 case 50: reg = CB_SC_VCC_5V; break;
272 default: reg = 0; break;
273 }
274 switch (state->Vpp) {
275 case 33: reg |= CB_SC_VPP_3V; break;
276 case 50: reg |= CB_SC_VPP_5V; break;
277 case 120: reg |= CB_SC_VPP_12V; break;
278 }
279 if (reg != cb_readl(socket, CB_SOCKET_CONTROL))
280 cb_writel(socket, CB_SOCKET_CONTROL, reg);
1da177e4 281 }
1da177e4
LT		 282}
283
284static int yenta_set_socket(struct pcmcia_socket *sock, socket_state_t *state)
285{
286 struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
287 u16 bridge;
288
d250a481
DR		 289 /* if powering down: do it immediately */
290 if (state->Vcc == 0)
291 yenta_set_power(socket, state);
292
1da177e4
LT		 293 socket->io_irq = state->io_irq;
294 bridge = config_readw(socket, CB_BRIDGE_CONTROL) & ~(CB_BRIDGE_CRST | CB_BRIDGE_INTR);
295 if (cb_readl(socket, CB_SOCKET_STATE) & CB_CBCARD) {
296 u8 intr;
297 bridge |= (state->flags & SS_RESET) ? CB_BRIDGE_CRST : 0;
298
299 /* ISA interrupt control? */
300 intr = exca_readb(socket, I365_INTCTL);
301 intr = (intr & ~0xf);
302 if (!socket->cb_irq) {
303 intr |= state->io_irq;
304 bridge |= CB_BRIDGE_INTR;
305 }
306 exca_writeb(socket, I365_INTCTL, intr);
307 } else {
308 u8 reg;
309
310 reg = exca_readb(socket, I365_INTCTL) & (I365_RING_ENA | I365_INTR_ENA);
311 reg |= (state->flags & SS_RESET) ? 0 : I365_PC_RESET;
312 reg |= (state->flags & SS_IOCARD) ? I365_PC_IOCARD : 0;
313 if (state->io_irq != socket->cb_irq) {
314 reg |= state->io_irq;
315 bridge |= CB_BRIDGE_INTR;
316 }
317 exca_writeb(socket, I365_INTCTL, reg);
318
319 reg = exca_readb(socket, I365_POWER) & (I365_VCC_MASK|I365_VPP1_MASK);
320 reg |= I365_PWR_NORESET;
321 if (state->flags & SS_PWR_AUTO) reg |= I365_PWR_AUTO;
322 if (state->flags & SS_OUTPUT_ENA) reg |= I365_PWR_OUT;
323 if (exca_readb(socket, I365_POWER) != reg)
324 exca_writeb(socket, I365_POWER, reg);
325
326 /* CSC interrupt: no ISA irq for CSC */
327 reg = I365_CSC_DETECT;
328 if (state->flags & SS_IOCARD) {
329 if (state->csc_mask & SS_STSCHG) reg |= I365_CSC_STSCHG;
330 } else {
331 if (state->csc_mask & SS_BATDEAD) reg |= I365_CSC_BVD1;
332 if (state->csc_mask & SS_BATWARN) reg |= I365_CSC_BVD2;
333 if (state->csc_mask & SS_READY) reg |= I365_CSC_READY;
334 }
335 exca_writeb(socket, I365_CSCINT, reg);
336 exca_readb(socket, I365_CSC);
337 if(sock->zoom_video)
338 sock->zoom_video(sock, state->flags & SS_ZVCARD);
339 }
340 config_writew(socket, CB_BRIDGE_CONTROL, bridge);
341 /* Socket event mask: get card insert/remove events.. */
342 cb_writel(socket, CB_SOCKET_EVENT, -1);
343 cb_writel(socket, CB_SOCKET_MASK, CB_CDMASK);
d250a481
DR		 344
345 /* if powering up: do it as the last step when the socket is configured */
346 if (state->Vcc != 0)
347 yenta_set_power(socket, state);
1da177e4
LT		 348 return 0;
349}
350
351static int yenta_set_io_map(struct pcmcia_socket *sock, struct pccard_io_map *io)
352{
353 struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
354 int map;
355 unsigned char ioctl, addr, enable;
356
357 map = io->map;
358
359 if (map > 1)
360 return -EINVAL;
361
362 enable = I365_ENA_IO(map);
363 addr = exca_readb(socket, I365_ADDRWIN);
364
365 /* Disable the window before changing it.. */
366 if (addr & enable) {
367 addr &= ~enable;
368 exca_writeb(socket, I365_ADDRWIN, addr);
369 }
370
371 exca_writew(socket, I365_IO(map)+I365_W_START, io->start);
372 exca_writew(socket, I365_IO(map)+I365_W_STOP, io->stop);
373
374 ioctl = exca_readb(socket, I365_IOCTL) & ~I365_IOCTL_MASK(map);
375 if (io->flags & MAP_0WS) ioctl |= I365_IOCTL_0WS(map);
376 if (io->flags & MAP_16BIT) ioctl |= I365_IOCTL_16BIT(map);
377 if (io->flags & MAP_AUTOSZ) ioctl |= I365_IOCTL_IOCS16(map);
378 exca_writeb(socket, I365_IOCTL, ioctl);
379
380 if (io->flags & MAP_ACTIVE)
381 exca_writeb(socket, I365_ADDRWIN, addr | enable);
382 return 0;
383}
384
385static int yenta_set_mem_map(struct pcmcia_socket *sock, struct pccard_mem_map *mem)
386{
387 struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
388 struct pci_bus_region region;
389 int map;
390 unsigned char addr, enable;
391 unsigned int start, stop, card_start;
392 unsigned short word;
393
394 pcibios_resource_to_bus(socket->dev, &region, mem->res);
395
396 map = mem->map;
397 start = region.start;
398 stop = region.end;
399 card_start = mem->card_start;
400
401 if (map > 4 || start > stop || ((start ^ stop) >> 24) ||
402 (card_start >> 26) || mem->speed > 1000)
403 return -EINVAL;
404
405 enable = I365_ENA_MEM(map);
406 addr = exca_readb(socket, I365_ADDRWIN);
407 if (addr & enable) {
408 addr &= ~enable;
409 exca_writeb(socket, I365_ADDRWIN, addr);
410 }
411
412 exca_writeb(socket, CB_MEM_PAGE(map), start >> 24);
413
414 word = (start >> 12) & 0x0fff;
415 if (mem->flags & MAP_16BIT)
416 word |= I365_MEM_16BIT;
417 if (mem->flags & MAP_0WS)
418 word |= I365_MEM_0WS;
419 exca_writew(socket, I365_MEM(map) + I365_W_START, word);
420
421 word = (stop >> 12) & 0x0fff;
422 switch (to_cycles(mem->speed)) {
423 case 0: break;
424 case 1: word |= I365_MEM_WS0; break;
425 case 2: word |= I365_MEM_WS1; break;
426 default: word |= I365_MEM_WS1 | I365_MEM_WS0; break;
427 }
428 exca_writew(socket, I365_MEM(map) + I365_W_STOP, word);
429
430 word = ((card_start - start) >> 12) & 0x3fff;
431 if (mem->flags & MAP_WRPROT)
432 word |= I365_MEM_WRPROT;
433 if (mem->flags & MAP_ATTRIB)
434 word |= I365_MEM_REG;
435 exca_writew(socket, I365_MEM(map) + I365_W_OFF, word);
436
437 if (mem->flags & MAP_ACTIVE)
438 exca_writeb(socket, I365_ADDRWIN, addr | enable);
439 return 0;
440}
441
442
fa912bcb 443
7d12e780 444static irqreturn_t yenta_interrupt(int irq, void *dev_id)
1da177e4 445{
fa912bcb
DR		 446 unsigned int events;
447 struct yenta_socket *socket = (struct yenta_socket *) dev_id;
1da177e4
LT		 448 u8 csc;
449 u32 cb_event;
1da177e4
LT		 450
451 /* Clear interrupt status for the event */
452 cb_event = cb_readl(socket, CB_SOCKET_EVENT);
453 cb_writel(socket, CB_SOCKET_EVENT, cb_event);
454
455 csc = exca_readb(socket, I365_CSC);
456
e4115805
DR		 457 if (!(cb_event || csc))
458 return IRQ_NONE;
459
1da177e4
LT		 460 events = (cb_event & (CB_CD1EVENT | CB_CD2EVENT)) ? SS_DETECT : 0 ;
461 events |= (csc & I365_CSC_DETECT) ? SS_DETECT : 0;
462 if (exca_readb(socket, I365_INTCTL) & I365_PC_IOCARD) {
463 events |= (csc & I365_CSC_STSCHG) ? SS_STSCHG : 0;
464 } else {
465 events |= (csc & I365_CSC_BVD1) ? SS_BATDEAD : 0;
466 events |= (csc & I365_CSC_BVD2) ? SS_BATWARN : 0;
467 events |= (csc & I365_CSC_READY) ? SS_READY : 0;
468 }
1da177e4 469
fa912bcb 470 if (events)
1da177e4 471 pcmcia_parse_events(&socket->socket, events);
fa912bcb 472
e4115805 473 return IRQ_HANDLED;
1da177e4
LT		 474}
475
476static void yenta_interrupt_wrapper(unsigned long data)
477{
478 struct yenta_socket *socket = (struct yenta_socket *) data;
479
7d12e780 480 yenta_interrupt(0, (void *)socket);
1da177e4
LT		 481 socket->poll_timer.expires = jiffies + HZ;
482 add_timer(&socket->poll_timer);
483}
484
485static void yenta_clear_maps(struct yenta_socket *socket)
486{
487 int i;
488 struct resource res = { .start = 0, .end = 0x0fff };
489 pccard_io_map io = { 0, 0, 0, 0, 1 };
490 pccard_mem_map mem = { .res = &res, };
491
492 yenta_set_socket(&socket->socket, &dead_socket);
493 for (i = 0; i < 2; i++) {
494 io.map = i;
495 yenta_set_io_map(&socket->socket, &io);
496 }
497 for (i = 0; i < 5; i++) {
498 mem.map = i;
499 yenta_set_mem_map(&socket->socket, &mem);
500 }
501}
502
fa912bcb
DR		 503/* redoes voltage interrogation if required */
504static void yenta_interrogate(struct yenta_socket *socket)
505{
506 u32 state;
507
508 state = cb_readl(socket, CB_SOCKET_STATE);
509 if (!(state & (CB_5VCARD | CB_3VCARD | CB_XVCARD | CB_YVCARD)) ||
510 (state & (CB_CDETECT1 | CB_CDETECT2 | CB_NOTACARD | CB_BADVCCREQ)) ||
511 ((state & (CB_16BITCARD | CB_CBCARD)) == (CB_16BITCARD | CB_CBCARD)))
512 cb_writel(socket, CB_SOCKET_FORCE, CB_CVSTEST);
513}
514
1da177e4
LT		 515/* Called at resume and initialization events */
516static int yenta_sock_init(struct pcmcia_socket *sock)
517{
518 struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
1da177e4
LT		 519
520 exca_writeb(socket, I365_GBLCTL, 0x00);
521 exca_writeb(socket, I365_GENCTL, 0x00);
522
523 /* Redo card voltage interrogation */
fa912bcb 524 yenta_interrogate(socket);
1da177e4
LT		 525
526 yenta_clear_maps(socket);
527
528 if (socket->type && socket->type->sock_init)
529 socket->type->sock_init(socket);
530
531 /* Re-enable CSC interrupts */
532 cb_writel(socket, CB_SOCKET_MASK, CB_CDMASK);
533
534 return 0;
535}
536
537static int yenta_sock_suspend(struct pcmcia_socket *sock)
538{
539 struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
540
541 /* Disable CSC interrupts */
542 cb_writel(socket, CB_SOCKET_MASK, 0x0);
543
544 return 0;
545}
546
547/*
548 * Use an adaptive allocation for the memory resource,
549 * sometimes the memory behind pci bridges is limited:
550 * 1/8 of the size of the io window of the parent.
eb0a90b4
DB		 551 * max 4 MB, min 16 kB. We try very hard to not get below
552 * the "ACC" values, though.
1da177e4
LT		 553 */
554#define BRIDGE_MEM_MAX 4*1024*1024
eb0a90b4 555#define BRIDGE_MEM_ACC 128*1024
1da177e4
LT		 556#define BRIDGE_MEM_MIN 16*1024
557
eb0a90b4
DB		 558#define BRIDGE_IO_MAX 512
559#define BRIDGE_IO_ACC 256
1da177e4
LT		 560#define BRIDGE_IO_MIN 32
561
562#ifndef PCIBIOS_MIN_CARDBUS_IO
563#define PCIBIOS_MIN_CARDBUS_IO PCIBIOS_MIN_IO
564#endif
565
eb0a90b4
DB		 566static int yenta_search_one_res(struct resource *root, struct resource *res,
567 u32 min)
568{
569 u32 align, size, start, end;
570
571 if (res->flags & IORESOURCE_IO) {
572 align = 1024;
573 size = BRIDGE_IO_MAX;
574 start = PCIBIOS_MIN_CARDBUS_IO;
575 end = ~0U;
576 } else {
577 unsigned long avail = root->end - root->start;
578 int i;
579 size = BRIDGE_MEM_MAX;
580 if (size > avail/8) {
581 size=(avail+1)/8;
582 /* round size down to next power of 2 */
583 i = 0;
584 while ((size /= 2) != 0)
585 i++;
586 size = 1 << i;
587 }
588 if (size < min)
589 size = min;
590 align = size;
591 start = PCIBIOS_MIN_MEM;
592 end = ~0U;
593 }
594
595 do {
596 if (allocate_resource(root, res, size, start, end, align,
597 NULL, NULL)==0) {
598 return 1;
599 }
600 size = size/2;
601 align = size;
602 } while (size >= min);
603
604 return 0;
605}
606
607
608static int yenta_search_res(struct yenta_socket *socket, struct resource *res,
609 u32 min)
610{
611 int i;
612 for (i=0; i<PCI_BUS_NUM_RESOURCES; i++) {
613 struct resource * root = socket->dev->bus->resource[i];
614 if (!root)
615 continue;
616
617 if ((res->flags ^ root->flags) &
618 (IORESOURCE_IO | IORESOURCE_MEM | IORESOURCE_PREFETCH))
619 continue; /* Wrong type */
620
621 if (yenta_search_one_res(root, res, min))
622 return 1;
623 }
624 return 0;
625}
626
b3743fa4 627static int yenta_allocate_res(struct yenta_socket *socket, int nr, unsigned type, int addr_start, int addr_end)
1da177e4 628{
1da177e4 629 struct resource *root, *res;
43c34735 630 struct pci_bus_region region;
1da177e4
LT		 631 unsigned mask;
632
7925407a
IK		 633 res = socket->dev->resource + PCI_BRIDGE_RESOURCES + nr;
634 /* Already allocated? */
635 if (res->parent)
b3743fa4 636 return 0;
7925407a 637
1da177e4
LT		 638 /* The granularity of the memory limit is 4kB, on IO it's 4 bytes */
639 mask = ~0xfff;
640 if (type & IORESOURCE_IO)
641 mask = ~3;
642
43c34735 643 res->name = socket->dev->subordinate->name;
1da177e4 644 res->flags = type;
1da177e4 645
43c34735
DB		 646 region.start = config_readl(socket, addr_start) & mask;
647 region.end = config_readl(socket, addr_end) | ~mask;
648 if (region.start && region.end > region.start && !override_bios) {
649 pcibios_bus_to_resource(socket->dev, res, &region);
862104e5
DB		 650 root = pci_find_parent_resource(socket->dev, res);
651 if (root && (request_resource(root, res) == 0))
b3743fa4 652 return 0;
862104e5 653 printk(KERN_INFO "yenta %s: Preassigned resource %d busy or not available, reconfiguring...\n",
1da177e4 654 pci_name(socket->dev), nr);
1da177e4
LT		 655 }
656
657 if (type & IORESOURCE_IO) {
eb0a90b4
DB		 658 if ((yenta_search_res(socket, res, BRIDGE_IO_MAX)) ||
659 (yenta_search_res(socket, res, BRIDGE_IO_ACC)) ||
b3743fa4
DB		 660 (yenta_search_res(socket, res, BRIDGE_IO_MIN)))
661 return 1;
1da177e4 662 } else {
eb0a90b4
DB		 663 if (type & IORESOURCE_PREFETCH) {
664 if ((yenta_search_res(socket, res, BRIDGE_MEM_MAX)) ||
665 (yenta_search_res(socket, res, BRIDGE_MEM_ACC)) ||
b3743fa4
DB		 666 (yenta_search_res(socket, res, BRIDGE_MEM_MIN)))
667 return 1;
eb0a90b4
DB		 668 /* Approximating prefetchable by non-prefetchable */
669 res->flags = IORESOURCE_MEM;
1da177e4 670 }
eb0a90b4
DB		 671 if ((yenta_search_res(socket, res, BRIDGE_MEM_MAX)) ||
672 (yenta_search_res(socket, res, BRIDGE_MEM_ACC)) ||
b3743fa4
DB		 673 (yenta_search_res(socket, res, BRIDGE_MEM_MIN)))
674 return 1;
eb0a90b4
DB		 675 }
676
1da177e4 677 printk(KERN_INFO "yenta %s: no resource of type %x available, trying to continue...\n",
eb0a90b4
DB		 678 pci_name(socket->dev), type);
679 res->start = res->end = res->flags = 0;
b3743fa4 680 return 0;
1da177e4
LT		 681}
682
683/*
684 * Allocate the bridge mappings for the device..
685 */
686static void yenta_allocate_resources(struct yenta_socket *socket)
687{
b3743fa4
DB		 688 int program = 0;
689 program += yenta_allocate_res(socket, 0, IORESOURCE_IO,
27879835 690 PCI_CB_IO_BASE_0, PCI_CB_IO_LIMIT_0);
b3743fa4 691 program += yenta_allocate_res(socket, 1, IORESOURCE_IO,
27879835 692 PCI_CB_IO_BASE_1, PCI_CB_IO_LIMIT_1);
b3743fa4 693 program += yenta_allocate_res(socket, 2, IORESOURCE_MEM|IORESOURCE_PREFETCH,
27879835 694 PCI_CB_MEMORY_BASE_0, PCI_CB_MEMORY_LIMIT_0);
b3743fa4 695 program += yenta_allocate_res(socket, 3, IORESOURCE_MEM,
27879835 696 PCI_CB_MEMORY_BASE_1, PCI_CB_MEMORY_LIMIT_1);
b3743fa4
DB		 697 if (program)
698 pci_setup_cardbus(socket->dev->subordinate);
1da177e4
LT		 699}
700
701
702/*
703 * Free the bridge mappings for the device..
704 */
705static void yenta_free_resources(struct yenta_socket *socket)
706{
707 int i;
708 for (i=0;i<4;i++) {
709 struct resource *res;
710 res = socket->dev->resource + PCI_BRIDGE_RESOURCES + i;
711 if (res->start != 0 && res->end != 0)
712 release_resource(res);
b3743fa4 713 res->start = res->end = res->flags = 0;
1da177e4
LT		 714 }
715}
716
717
718/*
719 * Close it down - release our resources and go home..
720 */
721static void yenta_close(struct pci_dev *dev)
722{
723 struct yenta_socket *sock = pci_get_drvdata(dev);
724
030ee39c
LT		 725 /* Remove the register attributes */
726 device_remove_file(&dev->dev, &dev_attr_yenta_registers);
727
1da177e4
LT		 728 /* we don't want a dying socket registered */
729 pcmcia_unregister_socket(&sock->socket);
730
731 /* Disable all events so we don't die in an IRQ storm */
732 cb_writel(sock, CB_SOCKET_MASK, 0x0);
733 exca_writeb(sock, I365_CSCINT, 0);
734
735 if (sock->cb_irq)
736 free_irq(sock->cb_irq, sock);
737 else
738 del_timer_sync(&sock->poll_timer);
739
740 if (sock->base)
741 iounmap(sock->base);
742 yenta_free_resources(sock);
743
744 pci_release_regions(dev);
745 pci_disable_device(dev);
746 pci_set_drvdata(dev, NULL);
747}
748
749
750static struct pccard_operations yenta_socket_operations = {
751 .init = yenta_sock_init,
752 .suspend = yenta_sock_suspend,
753 .get_status = yenta_get_status,
1da177e4
LT		 754 .set_socket = yenta_set_socket,
755 .set_io_map = yenta_set_io_map,
756 .set_mem_map = yenta_set_mem_map,
757};
758
759
63e7ebd0 760#ifdef CONFIG_YENTA_TI
1da177e4 761#include "ti113x.h"
63e7ebd0
DR		 762#endif
763#ifdef CONFIG_YENTA_RICOH
1da177e4 764#include "ricoh.h"
63e7ebd0
DR		 765#endif
766#ifdef CONFIG_YENTA_TOSHIBA
1da177e4 767#include "topic.h"
63e7ebd0
DR		 768#endif
769#ifdef CONFIG_YENTA_O2
1da177e4 770#include "o2micro.h"
63e7ebd0 771#endif
1da177e4
LT		 772
773enum {
774 CARDBUS_TYPE_DEFAULT = -1,
775 CARDBUS_TYPE_TI,
776 CARDBUS_TYPE_TI113X,
777 CARDBUS_TYPE_TI12XX,
778 CARDBUS_TYPE_TI1250,
779 CARDBUS_TYPE_RICOH,
ea2f1590 780 CARDBUS_TYPE_TOPIC95,
1da177e4
LT		 781 CARDBUS_TYPE_TOPIC97,
782 CARDBUS_TYPE_O2MICRO,
8c3520d4 783 CARDBUS_TYPE_ENE,
1da177e4
LT		 784};
785
786/*
787 * Different cardbus controllers have slightly different
788 * initialization sequences etc details. List them here..
789 */
790static struct cardbus_type cardbus_type[] = {
63e7ebd0 791#ifdef CONFIG_YENTA_TI
1da177e4
LT		 792 [CARDBUS_TYPE_TI] = {
793 .override = ti_override,
794 .save_state = ti_save_state,
795 .restore_state = ti_restore_state,
796 .sock_init = ti_init,
797 },
798 [CARDBUS_TYPE_TI113X] = {
799 .override = ti113x_override,
800 .save_state = ti_save_state,
801 .restore_state = ti_restore_state,
802 .sock_init = ti_init,
803 },
804 [CARDBUS_TYPE_TI12XX] = {
805 .override = ti12xx_override,
806 .save_state = ti_save_state,
807 .restore_state = ti_restore_state,
808 .sock_init = ti_init,
809 },
810 [CARDBUS_TYPE_TI1250] = {
811 .override = ti1250_override,
812 .save_state = ti_save_state,
813 .restore_state = ti_restore_state,
814 .sock_init = ti_init,
815 },
63e7ebd0
DR		 816#endif
817#ifdef CONFIG_YENTA_RICOH
1da177e4
LT		 818 [CARDBUS_TYPE_RICOH] = {
819 .override = ricoh_override,
820 .save_state = ricoh_save_state,
821 .restore_state = ricoh_restore_state,
822 },
63e7ebd0
DR		 823#endif
824#ifdef CONFIG_YENTA_TOSHIBA
ea2f1590
DR		 825 [CARDBUS_TYPE_TOPIC95] = {
826 .override = topic95_override,
827 },
1da177e4
LT		 828 [CARDBUS_TYPE_TOPIC97] = {
829 .override = topic97_override,
830 },
63e7ebd0
DR		 831#endif
832#ifdef CONFIG_YENTA_O2
1da177e4
LT		 833 [CARDBUS_TYPE_O2MICRO] = {
834 .override = o2micro_override,
835 .restore_state = o2micro_restore_state,
836 },
63e7ebd0
DR		 837#endif
838#ifdef CONFIG_YENTA_TI
8c3520d4
DR		 839 [CARDBUS_TYPE_ENE] = {
840 .override = ene_override,
841 .save_state = ti_save_state,
842 .restore_state = ti_restore_state,
843 .sock_init = ti_init,
844 },
63e7ebd0 845#endif
1da177e4
LT		 846};
847
848
849/*
850 * Only probe "regular" interrupts, don't
851 * touch dangerous spots like the mouse irq,
852 * because there are mice that apparently
853 * get really confused if they get fondled
854 * too intimately.
855 *
856 * Default to 11, 10, 9, 7, 6, 5, 4, 3.
857 */
858static u32 isa_interrupts = 0x0ef8;
859
860static unsigned int yenta_probe_irq(struct yenta_socket *socket, u32 isa_irq_mask)
861{
862 int i;
863 unsigned long val;
1da177e4
LT		 864 u32 mask;
865
1da177e4
LT		 866 /*
867 * Probe for usable interrupts using the force
868 * register to generate bogus card status events.
869 */
870 cb_writel(socket, CB_SOCKET_EVENT, -1);
871 cb_writel(socket, CB_SOCKET_MASK, CB_CSTSMASK);
872 exca_writeb(socket, I365_CSCINT, 0);
873 val = probe_irq_on() & isa_irq_mask;
874 for (i = 1; i < 16; i++) {
875 if (!((val >> i) & 1))
876 continue;
877 exca_writeb(socket, I365_CSCINT, I365_CSC_STSCHG | (i << 4));
878 cb_writel(socket, CB_SOCKET_FORCE, CB_FCARDSTS);
879 udelay(100);
880 cb_writel(socket, CB_SOCKET_EVENT, -1);
881 }
882 cb_writel(socket, CB_SOCKET_MASK, 0);
883 exca_writeb(socket, I365_CSCINT, 0);
884
885 mask = probe_irq_mask(val) & 0xffff;
886
1da177e4
LT		 887 return mask;
888}
889
890
78187865 891/*
63e7ebd0
DR		 892 * yenta PCI irq probing.
893 * currently only used in the TI/EnE initialization code
894 */
895#ifdef CONFIG_YENTA_TI
896
1da177e4 897/* interrupt handler, only used during probing */
7d12e780 898static irqreturn_t yenta_probe_handler(int irq, void *dev_id)
1da177e4
LT		 899{
900 struct yenta_socket *socket = (struct yenta_socket *) dev_id;
901 u8 csc;
902 u32 cb_event;
903
904 /* Clear interrupt status for the event */
905 cb_event = cb_readl(socket, CB_SOCKET_EVENT);
906 cb_writel(socket, CB_SOCKET_EVENT, -1);
907 csc = exca_readb(socket, I365_CSC);
908
909 if (cb_event || csc) {
910 socket->probe_status = 1;
911 return IRQ_HANDLED;
912 }
913
914 return IRQ_NONE;
915}
916
917/* probes the PCI interrupt, use only on override functions */
918static int yenta_probe_cb_irq(struct yenta_socket *socket)
919{
1da177e4
LT		 920 if (!socket->cb_irq)
921 return -1;
922
923 socket->probe_status = 0;
924
dace1453 925 if (request_irq(socket->cb_irq, yenta_probe_handler, IRQF_SHARED, "yenta", socket)) {
1da177e4
LT		 926 printk(KERN_WARNING "Yenta: 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);
a413c090 935
1da177e4
LT		 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
63e7ebd0 949#endif /* CONFIG_YENTA_TI */
1da177e4
LT		 950
951
952/*
953 * Set static data that doesn't need re-initializing..
954 */
955static void yenta_get_socket_capabilities(struct yenta_socket *socket, u32 isa_irq_mask)
956{
1da177e4 957 socket->socket.pci_irq = socket->cb_irq;
fa912bcb
DR		 958 if (isa_probe)
959 socket->socket.irq_mask = yenta_probe_irq(socket, isa_irq_mask);
960 else
961 socket->socket.irq_mask = 0;
1da177e4
LT		 962
963 printk(KERN_INFO "Yenta: ISA IRQ mask 0x%04x, PCI irq %d\n",
964 socket->socket.irq_mask, socket->cb_irq);
965}
966
967/*
968 * Initialize the standard cardbus registers
969 */
970static void yenta_config_init(struct yenta_socket *socket)
971{
972 u16 bridge;
973 struct pci_dev *dev = socket->dev;
8e5d17eb 974 struct pci_bus_region region;
1da177e4 975
8e5d17eb 976 pcibios_resource_to_bus(socket->dev, &region, &dev->resource[0]);
1da177e4
LT		 977
978 config_writel(socket, CB_LEGACY_MODE_BASE, 0);
8e5d17eb 979 config_writel(socket, PCI_BASE_ADDRESS_0, region.start);
1da177e4
LT		 980 config_writew(socket, PCI_COMMAND,
981 PCI_COMMAND_IO |
982 PCI_COMMAND_MEMORY |
983 PCI_COMMAND_MASTER |
984 PCI_COMMAND_WAIT);
985
986 /* MAGIC NUMBERS! Fixme */
987 config_writeb(socket, PCI_CACHE_LINE_SIZE, L1_CACHE_BYTES / 4);
988 config_writeb(socket, PCI_LATENCY_TIMER, 168);
989 config_writel(socket, PCI_PRIMARY_BUS,
990 (176 << 24) | /* sec. latency timer */
991 (dev->subordinate->subordinate << 16) | /* subordinate bus */
992 (dev->subordinate->secondary << 8) | /* secondary bus */
993 dev->subordinate->primary); /* primary bus */
994
995 /*
996 * Set up the bridging state:
997 * - enable write posting.
998 * - memory window 0 prefetchable, window 1 non-prefetchable
999 * - PCI interrupts enabled if a PCI interrupt exists..
1000 */
1001 bridge = config_readw(socket, CB_BRIDGE_CONTROL);
a413c090
DR		 1002 bridge &= ~(CB_BRIDGE_CRST | CB_BRIDGE_PREFETCH1 | CB_BRIDGE_ISAEN | CB_BRIDGE_VGAEN);
1003 bridge |= CB_BRIDGE_PREFETCH0 | CB_BRIDGE_POSTEN;
1da177e4
LT		 1004 config_writew(socket, CB_BRIDGE_CONTROL, bridge);
1005}
1006
b435261b 1007/**
66005216 1008 * yenta_fixup_parent_bridge - Fix subordinate bus# of the parent bridge
b435261b
BK		 1009 * @cardbus_bridge: The PCI bus which the CardBus bridge bridges to
1010 *
1011 * Checks if devices on the bus which the CardBus bridge bridges to would be
1012 * invisible during PCI scans because of a misconfigured subordinate number
1013 * of the parent brige - some BIOSes seem to be too lazy to set it right.
1014 * Does the fixup carefully by checking how far it can go without conflicts.
78187865 1015 * See http\://bugzilla.kernel.org/show_bug.cgi?id=2944 for more information.
b435261b
BK		 1016 */
1017static void yenta_fixup_parent_bridge(struct pci_bus *cardbus_bridge)
1018{
1019 struct list_head *tmp;
1020 unsigned char upper_limit;
1021 /*
1022 * We only check and fix the parent bridge: All systems which need
1023 * this fixup that have been reviewed are laptops and the only bridge
1024 * which needed fixing was the parent bridge of the CardBus bridge:
1025 */
1026 struct pci_bus *bridge_to_fix = cardbus_bridge->parent;
1027
1028 /* Check bus numbers are already set up correctly: */
1029 if (bridge_to_fix->subordinate >= cardbus_bridge->subordinate)
1030 return; /* The subordinate number is ok, nothing to do */
1031
1032 if (!bridge_to_fix->parent)
1033 return; /* Root bridges are ok */
1034
1035 /* stay within the limits of the bus range of the parent: */
1036 upper_limit = bridge_to_fix->parent->subordinate;
1037
1038 /* check the bus ranges of all silbling bridges to prevent overlap */
1039 list_for_each(tmp, &bridge_to_fix->parent->children) {
1040 struct pci_bus * silbling = pci_bus_b(tmp);
1041 /*
1042 * If the silbling has a higher secondary bus number
1043 * and it's secondary is equal or smaller than our
1044 * current upper limit, set the new upper limit to
1045 * the bus number below the silbling's range:
1046 */
1047 if (silbling->secondary > bridge_to_fix->subordinate
1048 && silbling->secondary <= upper_limit)
1049 upper_limit = silbling->secondary - 1;
1050 }
1051
1052 /* Show that the wanted subordinate number is not possible: */
1053 if (cardbus_bridge->subordinate > upper_limit)
1054 printk(KERN_WARNING "Yenta: Upper limit for fixing this "
1055 "bridge's parent bridge: #%02x\n", upper_limit);
1056
1057 /* If we have room to increase the bridge's subordinate number, */
1058 if (bridge_to_fix->subordinate < upper_limit) {
1059
1060 /* use the highest number of the hidden bus, within limits */
1061 unsigned char subordinate_to_assign =
1062 min(cardbus_bridge->subordinate, upper_limit);
1063
1064 printk(KERN_INFO "Yenta: Raising subordinate bus# of parent "
1065 "bus (#%02x) from #%02x to #%02x\n",
1066 bridge_to_fix->number,
1067 bridge_to_fix->subordinate, subordinate_to_assign);
1068
1069 /* Save the new subordinate in the bus struct of the bridge */
1070 bridge_to_fix->subordinate = subordinate_to_assign;
1071
1072 /* and update the PCI config space with the new subordinate */
1073 pci_write_config_byte(bridge_to_fix->self,
1074 PCI_SUBORDINATE_BUS, bridge_to_fix->subordinate);
1075 }
1076}
1077
1da177e4
LT		 1078/*
1079 * Initialize a cardbus controller. Make sure we have a usable
1080 * interrupt, and that we can map the cardbus area. Fill in the
1081 * socket information structure..
1082 */
1083static int __devinit yenta_probe (struct pci_dev *dev, const struct pci_device_id *id)
1084{
1085 struct yenta_socket *socket;
1086 int ret;
c7fb0b35
IK		 1087
1088 /*
1089 * If we failed to assign proper bus numbers for this cardbus
1090 * controller during PCI probe, its subordinate pci_bus is NULL.
1091 * Bail out if so.
1092 */
1093 if (!dev->subordinate) {
5a23f347
LT		 1094 printk(KERN_ERR "Yenta: no bus associated with %s! "
1095 "(try 'pci=assign-busses')\n", pci_name(dev));
c7fb0b35
IK		 1096 return -ENODEV;
1097 }
1098
8084b372 1099 socket = kzalloc(sizeof(struct yenta_socket), GFP_KERNEL);
1da177e4
LT		 1100 if (!socket)
1101 return -ENOMEM;
1da177e4
LT		 1102
1103 /* prepare pcmcia_socket */
1104 socket->socket.ops = &yenta_socket_operations;
1105 socket->socket.resource_ops = &pccard_nonstatic_ops;
87373318 1106 socket->socket.dev.parent = &dev->dev;
1da177e4
LT		 1107 socket->socket.driver_data = socket;
1108 socket->socket.owner = THIS_MODULE;
5bc6b68a
RK		 1109 socket->socket.features = SS_CAP_PAGE_REGS | SS_CAP_PCCARD;
1110 socket->socket.map_size = 0x1000;
1111 socket->socket.cb_dev = dev;
1da177e4
LT		 1112
1113 /* prepare struct yenta_socket */
1114 socket->dev = dev;
1115 pci_set_drvdata(dev, socket);
1116
1117 /*
1118 * Do some basic sanity checking..
1119 */
1120 if (pci_enable_device(dev)) {
1121 ret = -EBUSY;
1122 goto free;
1123 }
1124
1125 ret = pci_request_regions(dev, "yenta_socket");
1126 if (ret)
1127 goto disable;
1128
1129 if (!pci_resource_start(dev, 0)) {
1130 printk(KERN_ERR "No cardbus resource!\n");
1131 ret = -ENODEV;
1132 goto release;
1133 }
1134
1135 /*
1136 * Ok, start setup.. Map the cardbus registers,
1137 * and request the IRQ.
1138 */
1139 socket->base = ioremap(pci_resource_start(dev, 0), 0x1000);
1140 if (!socket->base) {
1141 ret = -ENOMEM;
1142 goto release;
1143 }
1144
1145 /*
1146 * report the subsystem vendor and device for help debugging
1147 * the irq stuff...
1148 */
1149 printk(KERN_INFO "Yenta: CardBus bridge found at %s [%04x:%04x]\n",
1150 pci_name(dev), dev->subsystem_vendor, dev->subsystem_device);
1151
1152 yenta_config_init(socket);
1153
1154 /* Disable all events */
1155 cb_writel(socket, CB_SOCKET_MASK, 0x0);
1156
1157 /* Set up the bridge regions.. */
1158 yenta_allocate_resources(socket);
1159
1160 socket->cb_irq = dev->irq;
1161
1162 /* Do we have special options for the device? */
1163 if (id->driver_data != CARDBUS_TYPE_DEFAULT &&
1164 id->driver_data < ARRAY_SIZE(cardbus_type)) {
1165 socket->type = &cardbus_type[id->driver_data];
1166
1167 ret = socket->type->override(socket);
1168 if (ret < 0)
1169 goto unmap;
1170 }
1171
1172 /* We must finish initialization here */
1173
dace1453 1174 if (!socket->cb_irq || request_irq(socket->cb_irq, yenta_interrupt, IRQF_SHARED, "yenta", socket)) {
1da177e4
LT		 1175 /* No IRQ or request_irq failed. Poll */
1176 socket->cb_irq = 0; /* But zero is a valid IRQ number. */
1177 init_timer(&socket->poll_timer);
1178 socket->poll_timer.function = yenta_interrupt_wrapper;
1179 socket->poll_timer.data = (unsigned long)socket;
1180 socket->poll_timer.expires = jiffies + HZ;
1181 add_timer(&socket->poll_timer);
5bc6b68a
RK		 1182 printk(KERN_INFO "Yenta: no PCI IRQ, CardBus support disabled for this socket.\n"
1183 KERN_INFO "Yenta: check your BIOS CardBus, BIOS IRQ or ACPI settings.\n");
1184 } else {
1185 socket->socket.features |= SS_CAP_CARDBUS;
1da177e4
LT		 1186 }
1187
1188 /* Figure out what the dang thing can do for the PCMCIA layer... */
fa912bcb 1189 yenta_interrogate(socket);
1da177e4
LT		 1190 yenta_get_socket_capabilities(socket, isa_interrupts);
1191 printk(KERN_INFO "Socket status: %08x\n", cb_readl(socket, CB_SOCKET_STATE));
1192
b435261b
BK		 1193 yenta_fixup_parent_bridge(dev->subordinate);
1194
1da177e4
LT		 1195 /* Register it with the pcmcia layer.. */
1196 ret = pcmcia_register_socket(&socket->socket);
030ee39c
LT		 1197 if (ret == 0) {
1198 /* Add the yenta register attributes */
4deb7c1e
JG		 1199 ret = device_create_file(&dev->dev, &dev_attr_yenta_registers);
1200 if (ret == 0)
1201 goto out;
1202
1203 /* error path... */
1204 pcmcia_unregister_socket(&socket->socket);
030ee39c 1205 }
1da177e4
LT		 1206
1207 unmap:
1208 iounmap(socket->base);
1209 release:
1210 pci_release_regions(dev);
1211 disable:
1212 pci_disable_device(dev);
1213 free:
1214 kfree(socket);
1215 out:
1216 return ret;
1217}
1218
f237de58 1219#ifdef CONFIG_PM
1da177e4
LT		 1220static int yenta_dev_suspend (struct pci_dev *dev, pm_message_t state)
1221{
1222 struct yenta_socket *socket = pci_get_drvdata(dev);
1223 int ret;
1224
1225 ret = pcmcia_socket_dev_suspend(&dev->dev, state);
1226
1227 if (socket) {
1228 if (socket->type && socket->type->save_state)
1229 socket->type->save_state(socket);
1230
1231 /* FIXME: pci_save_state needs to have a better interface */
1232 pci_save_state(dev);
1233 pci_read_config_dword(dev, 16*4, &socket->saved_state[0]);
1234 pci_read_config_dword(dev, 17*4, &socket->saved_state[1]);
d58da590 1235 pci_disable_device(dev);
1da177e4
LT		 1236
1237 /*
1238 * Some laptops (IBM T22) do not like us putting the Cardbus
1239 * bridge into D3. At a guess, some other laptop will
1240 * probably require this, so leave it commented out for now.
1241 */
1242 /* pci_set_power_state(dev, 3); */
1243 }
1244
1245 return ret;
1246}
1247
1248
1249static int yenta_dev_resume (struct pci_dev *dev)
1250{
1251 struct yenta_socket *socket = pci_get_drvdata(dev);
1252
1253 if (socket) {
4deb7c1e
JG		 1254 int rc;
1255
1da177e4
LT		 1256 pci_set_power_state(dev, 0);
1257 /* FIXME: pci_restore_state needs to have a better interface */
1258 pci_restore_state(dev);
1259 pci_write_config_dword(dev, 16*4, socket->saved_state[0]);
1260 pci_write_config_dword(dev, 17*4, socket->saved_state[1]);
4deb7c1e
JG		 1261
1262 rc = pci_enable_device(dev);
1263 if (rc)
1264 return rc;
1265
d58da590 1266 pci_set_master(dev);
1da177e4
LT		 1267
1268 if (socket->type && socket->type->restore_state)
1269 socket->type->restore_state(socket);
1270 }
1271
1272 return pcmcia_socket_dev_resume(&dev->dev);
1273}
f237de58 1274#endif
1da177e4
LT		 1275
1276#define CB_ID(vend,dev,type) \
1277 { \
1278 .vendor = vend, \
1279 .device = dev, \
1280 .subvendor = PCI_ANY_ID, \
1281 .subdevice = PCI_ANY_ID, \
1282 .class = PCI_CLASS_BRIDGE_CARDBUS << 8, \
1283 .class_mask = ~0, \
1284 .driver_data = CARDBUS_TYPE_##type, \
1285 }
1286
1287static struct pci_device_id yenta_table [] = {
1288 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1031, TI),
1289
1290 /*
1291 * TBD: Check if these TI variants can use more
1292 * advanced overrides instead. (I can't get the
1293 * data sheets for these devices. --rmk)
1294 */
63e7ebd0 1295#ifdef CONFIG_YENTA_TI
1da177e4
LT		 1296 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1210, TI),
1297
1298 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1130, TI113X),
1299 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1131, TI113X),
1300
1301 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1211, TI12XX),
1302 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1220, TI12XX),
1303 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1221, TI12XX),
1304 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1225, TI12XX),
1305 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1251A, TI12XX),
1306 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1251B, TI12XX),
1307 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1420, TI12XX),
1308 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1450, TI12XX),
1309 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1451A, TI12XX),
1310 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1510, TI12XX),
1311 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1520, TI12XX),
1312 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1620, TI12XX),
1313 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4410, TI12XX),
1314 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4450, TI12XX),
1315 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4451, TI12XX),
1316 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4510, TI12XX),
1317 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4520, TI12XX),
1318
1319 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1250, TI1250),
1320 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1410, TI1250),
1321
6c1a10db
DR		 1322 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_XX21_XX11, TI12XX),
1323 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_X515, TI12XX),
59e35ba1 1324 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_XX12, TI12XX),
6c1a10db
DR		 1325 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_X420, TI12XX),
1326 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_X620, TI12XX),
1327 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_7410, TI12XX),
1328 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_7510, TI12XX),
1329 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_7610, TI12XX),
1330
f9cb8b71
DR		 1331 CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_710, TI12XX),
1332 CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_712, TI12XX),
1333 CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_720, TI12XX),
1334 CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_722, TI12XX),
8c3520d4
DR		 1335 CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1211, ENE),
1336 CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1225, ENE),
1337 CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1410, ENE),
1338 CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1420, ENE),
63e7ebd0 1339#endif /* CONFIG_YENTA_TI */
1da177e4 1340
63e7ebd0 1341#ifdef CONFIG_YENTA_RICOH
1da177e4
LT		 1342 CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C465, RICOH),
1343 CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C466, RICOH),
1344 CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C475, RICOH),
1345 CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C476, RICOH),
1346 CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C478, RICOH),
63e7ebd0 1347#endif
1da177e4 1348
63e7ebd0 1349#ifdef CONFIG_YENTA_TOSHIBA
ea2f1590 1350 CB_ID(PCI_VENDOR_ID_TOSHIBA, PCI_DEVICE_ID_TOSHIBA_TOPIC95, TOPIC95),
1da177e4
LT		 1351 CB_ID(PCI_VENDOR_ID_TOSHIBA, PCI_DEVICE_ID_TOSHIBA_TOPIC97, TOPIC97),
1352 CB_ID(PCI_VENDOR_ID_TOSHIBA, PCI_DEVICE_ID_TOSHIBA_TOPIC100, TOPIC97),
63e7ebd0 1353#endif
1da177e4 1354
63e7ebd0 1355#ifdef CONFIG_YENTA_O2
1da177e4 1356 CB_ID(PCI_VENDOR_ID_O2, PCI_ANY_ID, O2MICRO),
63e7ebd0 1357#endif
1da177e4
LT		 1358
1359 /* match any cardbus bridge */
1360 CB_ID(PCI_ANY_ID, PCI_ANY_ID, DEFAULT),
1361 { /* all zeroes */ }
1362};
1363MODULE_DEVICE_TABLE(pci, yenta_table);
1364
1365
1366static struct pci_driver yenta_cardbus_driver = {
1367 .name = "yenta_cardbus",
1368 .id_table = yenta_table,
1369 .probe = yenta_probe,
1370 .remove = __devexit_p(yenta_close),
f237de58 1371#ifdef CONFIG_PM
1da177e4
LT		 1372 .suspend = yenta_dev_suspend,
1373 .resume = yenta_dev_resume,
f237de58 1374#endif
1da177e4
LT		 1375};
1376
1377
1378static int __init yenta_socket_init(void)
1379{
1380 return pci_register_driver (&yenta_cardbus_driver);
1381}
1382
1383
1384static void __exit yenta_socket_exit (void)
1385{
1386 pci_unregister_driver (&yenta_cardbus_driver);
1387}
1388
1389
1390module_init(yenta_socket_init);
1391module_exit(yenta_socket_exit);
1392
1393MODULE_LICENSE("GPL");
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