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IRQ: Maintain regs pointer globally rather than passing to IRQ handlers
[mirror_ubuntu-jammy-kernel.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>
15#include <linux/sched.h>
16#include <linux/workqueue.h>
17#include <linux/interrupt.h>
18#include <linux/delay.h>
19#include <linux/module.h>
20
1da177e4
LT		 21#include <pcmcia/cs_types.h>
22#include <pcmcia/ss.h>
23#include <pcmcia/cs.h>
24
25#include <asm/io.h>
26
27#include "yenta_socket.h"
28#include "i82365.h"
29
30static int disable_clkrun;
31module_param(disable_clkrun, bool, 0444);
32MODULE_PARM_DESC(disable_clkrun, "If PC card doesn't function properly, please try this option");
33
fa912bcb
DR		 34static int isa_probe = 1;
35module_param(isa_probe, bool, 0444);
36MODULE_PARM_DESC(isa_probe, "If set ISA interrupts are probed (default). Set to N to disable probing");
37
38static int pwr_irqs_off;
39module_param(pwr_irqs_off, bool, 0644);
40MODULE_PARM_DESC(pwr_irqs_off, "Force IRQs off during power-on of slot. Use only when seeing IRQ storms!");
41
1da177e4
LT		 42#if 0
43#define debug(x,args...) printk(KERN_DEBUG "%s: " x, __func__ , ##args)
44#else
45#define debug(x,args...)
46#endif
47
48/* Don't ask.. */
49#define to_cycles(ns) ((ns)/120)
50#define to_ns(cycles) ((cycles)*120)
51
63e7ebd0
DR		 52/**
53 * yenta PCI irq probing.
54 * currently only used in the TI/EnE initialization code
55 */
56#ifdef CONFIG_YENTA_TI
1da177e4 57static int yenta_probe_cb_irq(struct yenta_socket *socket);
63e7ebd0 58#endif
1da177e4
LT		 59
60
61static unsigned int override_bios;
62module_param(override_bios, uint, 0000);
63MODULE_PARM_DESC (override_bios, "yenta ignore bios resource allocation");
64
65/*
66 * Generate easy-to-use ways of reading a cardbus sockets
67 * regular memory space ("cb_xxx"), configuration space
68 * ("config_xxx") and compatibility space ("exca_xxxx")
69 */
70static inline u32 cb_readl(struct yenta_socket *socket, unsigned reg)
71{
72 u32 val = readl(socket->base + reg);
73 debug("%p %04x %08x\n", socket, reg, val);
74 return val;
75}
76
77static inline void cb_writel(struct yenta_socket *socket, unsigned reg, u32 val)
78{
79 debug("%p %04x %08x\n", socket, reg, val);
80 writel(val, socket->base + reg);
c8751e4c 81 readl(socket->base + reg); /* avoid problems with PCI write posting */
1da177e4
LT		 82}
83
84static inline u8 config_readb(struct yenta_socket *socket, unsigned offset)
85{
86 u8 val;
87 pci_read_config_byte(socket->dev, offset, &val);
88 debug("%p %04x %02x\n", socket, offset, val);
89 return val;
90}
91
92static inline u16 config_readw(struct yenta_socket *socket, unsigned offset)
93{
94 u16 val;
95 pci_read_config_word(socket->dev, offset, &val);
96 debug("%p %04x %04x\n", socket, offset, val);
97 return val;
98}
99
100static inline u32 config_readl(struct yenta_socket *socket, unsigned offset)
101{
102 u32 val;
103 pci_read_config_dword(socket->dev, offset, &val);
104 debug("%p %04x %08x\n", socket, offset, val);
105 return val;
106}
107
108static inline void config_writeb(struct yenta_socket *socket, unsigned offset, u8 val)
109{
110 debug("%p %04x %02x\n", socket, offset, val);
111 pci_write_config_byte(socket->dev, offset, val);
112}
113
114static inline void config_writew(struct yenta_socket *socket, unsigned offset, u16 val)
115{
116 debug("%p %04x %04x\n", socket, offset, val);
117 pci_write_config_word(socket->dev, offset, val);
118}
119
120static inline void config_writel(struct yenta_socket *socket, unsigned offset, u32 val)
121{
122 debug("%p %04x %08x\n", socket, offset, val);
123 pci_write_config_dword(socket->dev, offset, val);
124}
125
126static inline u8 exca_readb(struct yenta_socket *socket, unsigned reg)
127{
128 u8 val = readb(socket->base + 0x800 + reg);
129 debug("%p %04x %02x\n", socket, reg, val);
130 return val;
131}
132
133static inline u8 exca_readw(struct yenta_socket *socket, unsigned reg)
134{
135 u16 val;
136 val = readb(socket->base + 0x800 + reg);
137 val |= readb(socket->base + 0x800 + reg + 1) << 8;
138 debug("%p %04x %04x\n", socket, reg, val);
139 return val;
140}
141
142static inline void exca_writeb(struct yenta_socket *socket, unsigned reg, u8 val)
143{
144 debug("%p %04x %02x\n", socket, reg, val);
145 writeb(val, socket->base + 0x800 + reg);
c8751e4c 146 readb(socket->base + 0x800 + reg); /* PCI write posting... */
1da177e4
LT		 147}
148
149static void exca_writew(struct yenta_socket *socket, unsigned reg, u16 val)
150{
151 debug("%p %04x %04x\n", socket, reg, val);
152 writeb(val, socket->base + 0x800 + reg);
153 writeb(val >> 8, socket->base + 0x800 + reg + 1);
c8751e4c
DR		 154
155 /* PCI write posting... */
156 readb(socket->base + 0x800 + reg);
157 readb(socket->base + 0x800 + reg + 1);
1da177e4
LT		 158}
159
030ee39c
LT		 160static ssize_t show_yenta_registers(struct device *yentadev, struct device_attribute *attr, char *buf)
161{
162 struct pci_dev *dev = to_pci_dev(yentadev);
163 struct yenta_socket *socket = pci_get_drvdata(dev);
164 int offset = 0, i;
165
166 offset = snprintf(buf, PAGE_SIZE, "CB registers:");
167 for (i = 0; i < 0x24; i += 4) {
168 unsigned val;
169 if (!(i & 15))
170 offset += snprintf(buf + offset, PAGE_SIZE - offset, "\n%02x:", i);
171 val = cb_readl(socket, i);
172 offset += snprintf(buf + offset, PAGE_SIZE - offset, " %08x", val);
173 }
174
175 offset += snprintf(buf + offset, PAGE_SIZE - offset, "\n\nExCA registers:");
176 for (i = 0; i < 0x45; i++) {
177 unsigned char val;
178 if (!(i & 7)) {
179 if (i & 8) {
180 memcpy(buf + offset, " -", 2);
181 offset += 2;
182 } else
183 offset += snprintf(buf + offset, PAGE_SIZE - offset, "\n%02x:", i);
184 }
185 val = exca_readb(socket, i);
186 offset += snprintf(buf + offset, PAGE_SIZE - offset, " %02x", val);
187 }
188 buf[offset++] = '\n';
189 return offset;
190}
191
192static DEVICE_ATTR(yenta_registers, S_IRUSR, show_yenta_registers, NULL);
193
1da177e4
LT		 194/*
195 * Ugh, mixed-mode cardbus and 16-bit pccard state: things depend
196 * on what kind of card is inserted..
197 */
198static int yenta_get_status(struct pcmcia_socket *sock, unsigned int *value)
199{
200 struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
201 unsigned int val;
202 u32 state = cb_readl(socket, CB_SOCKET_STATE);
203
204 val = (state & CB_3VCARD) ? SS_3VCARD : 0;
205 val |= (state & CB_XVCARD) ? SS_XVCARD : 0;
fa912bcb
DR		 206 val |= (state & (CB_5VCARD | CB_3VCARD | CB_XVCARD | CB_YVCARD)) ? 0 : SS_PENDING;
207 val |= (state & (CB_CDETECT1 | CB_CDETECT2)) ? SS_PENDING : 0;
208
1da177e4
LT		 209
210 if (state & CB_CBCARD) {
211 val |= SS_CARDBUS;
212 val |= (state & CB_CARDSTS) ? SS_STSCHG : 0;
213 val |= (state & (CB_CDETECT1 | CB_CDETECT2)) ? 0 : SS_DETECT;
214 val |= (state & CB_PWRCYCLE) ? SS_POWERON | SS_READY : 0;
fa912bcb 215 } else if (state & CB_16BITCARD) {
1da177e4
LT		 216 u8 status = exca_readb(socket, I365_STATUS);
217 val |= ((status & I365_CS_DETECT) == I365_CS_DETECT) ? SS_DETECT : 0;
218 if (exca_readb(socket, I365_INTCTL) & I365_PC_IOCARD) {
219 val |= (status & I365_CS_STSCHG) ? 0 : SS_STSCHG;
220 } else {
221 val |= (status & I365_CS_BVD1) ? 0 : SS_BATDEAD;
222 val |= (status & I365_CS_BVD2) ? 0 : SS_BATWARN;
223 }
224 val |= (status & I365_CS_WRPROT) ? SS_WRPROT : 0;
225 val |= (status & I365_CS_READY) ? SS_READY : 0;
226 val |= (status & I365_CS_POWERON) ? SS_POWERON : 0;
227 }
228
229 *value = val;
230 return 0;
231}
232
1da177e4
LT		 233static void yenta_set_power(struct yenta_socket *socket, socket_state_t *state)
234{
ea2f1590
DR		 235 /* some birdges require to use the ExCA registers to power 16bit cards */
236 if (!(cb_readl(socket, CB_SOCKET_STATE) & CB_CBCARD) &&
237 (socket->flags & YENTA_16BIT_POWER_EXCA)) {
238 u8 reg, old;
239 reg = old = exca_readb(socket, I365_POWER);
240 reg &= ~(I365_VCC_MASK | I365_VPP1_MASK | I365_VPP2_MASK);
241
242 /* i82365SL-DF style */
243 if (socket->flags & YENTA_16BIT_POWER_DF) {
244 switch (state->Vcc) {
245 case 33: reg |= I365_VCC_3V; break;
246 case 50: reg |= I365_VCC_5V; break;
247 default: reg = 0; break;
248 }
249 switch (state->Vpp) {
250 case 33:
251 case 50: reg |= I365_VPP1_5V; break;
252 case 120: reg |= I365_VPP1_12V; break;
253 }
254 } else {
255 /* i82365SL-B style */
256 switch (state->Vcc) {
257 case 50: reg |= I365_VCC_5V; break;
258 default: reg = 0; break;
259 }
260 switch (state->Vpp) {
261 case 50: reg |= I365_VPP1_5V | I365_VPP2_5V; break;
262 case 120: reg |= I365_VPP1_12V | I365_VPP2_12V; break;
263 }
264 }
265
266 if (reg != old)
267 exca_writeb(socket, I365_POWER, reg);
268 } else {
269 u32 reg = 0; /* CB_SC_STPCLK? */
270 switch (state->Vcc) {
271 case 33: reg = CB_SC_VCC_3V; break;
272 case 50: reg = CB_SC_VCC_5V; break;
273 default: reg = 0; break;
274 }
275 switch (state->Vpp) {
276 case 33: reg |= CB_SC_VPP_3V; break;
277 case 50: reg |= CB_SC_VPP_5V; break;
278 case 120: reg |= CB_SC_VPP_12V; break;
279 }
280 if (reg != cb_readl(socket, CB_SOCKET_CONTROL))
281 cb_writel(socket, CB_SOCKET_CONTROL, reg);
1da177e4 282 }
1da177e4
LT		 283}
284
285static int yenta_set_socket(struct pcmcia_socket *sock, socket_state_t *state)
286{
287 struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
288 u16 bridge;
289
d250a481
DR		 290 /* if powering down: do it immediately */
291 if (state->Vcc == 0)
292 yenta_set_power(socket, state);
293
1da177e4
LT		 294 socket->io_irq = state->io_irq;
295 bridge = config_readw(socket, CB_BRIDGE_CONTROL) & ~(CB_BRIDGE_CRST | CB_BRIDGE_INTR);
296 if (cb_readl(socket, CB_SOCKET_STATE) & CB_CBCARD) {
297 u8 intr;
298 bridge |= (state->flags & SS_RESET) ? CB_BRIDGE_CRST : 0;
299
300 /* ISA interrupt control? */
301 intr = exca_readb(socket, I365_INTCTL);
302 intr = (intr & ~0xf);
303 if (!socket->cb_irq) {
304 intr |= state->io_irq;
305 bridge |= CB_BRIDGE_INTR;
306 }
307 exca_writeb(socket, I365_INTCTL, intr);
308 } else {
309 u8 reg;
310
311 reg = exca_readb(socket, I365_INTCTL) & (I365_RING_ENA | I365_INTR_ENA);
312 reg |= (state->flags & SS_RESET) ? 0 : I365_PC_RESET;
313 reg |= (state->flags & SS_IOCARD) ? I365_PC_IOCARD : 0;
314 if (state->io_irq != socket->cb_irq) {
315 reg |= state->io_irq;
316 bridge |= CB_BRIDGE_INTR;
317 }
318 exca_writeb(socket, I365_INTCTL, reg);
319
320 reg = exca_readb(socket, I365_POWER) & (I365_VCC_MASK|I365_VPP1_MASK);
321 reg |= I365_PWR_NORESET;
322 if (state->flags & SS_PWR_AUTO) reg |= I365_PWR_AUTO;
323 if (state->flags & SS_OUTPUT_ENA) reg |= I365_PWR_OUT;
324 if (exca_readb(socket, I365_POWER) != reg)
325 exca_writeb(socket, I365_POWER, reg);
326
327 /* CSC interrupt: no ISA irq for CSC */
328 reg = I365_CSC_DETECT;
329 if (state->flags & SS_IOCARD) {
330 if (state->csc_mask & SS_STSCHG) reg |= I365_CSC_STSCHG;
331 } else {
332 if (state->csc_mask & SS_BATDEAD) reg |= I365_CSC_BVD1;
333 if (state->csc_mask & SS_BATWARN) reg |= I365_CSC_BVD2;
334 if (state->csc_mask & SS_READY) reg |= I365_CSC_READY;
335 }
336 exca_writeb(socket, I365_CSCINT, reg);
337 exca_readb(socket, I365_CSC);
338 if(sock->zoom_video)
339 sock->zoom_video(sock, state->flags & SS_ZVCARD);
340 }
341 config_writew(socket, CB_BRIDGE_CONTROL, bridge);
342 /* Socket event mask: get card insert/remove events.. */
343 cb_writel(socket, CB_SOCKET_EVENT, -1);
344 cb_writel(socket, CB_SOCKET_MASK, CB_CDMASK);
d250a481
DR		 345
346 /* if powering up: do it as the last step when the socket is configured */
347 if (state->Vcc != 0)
348 yenta_set_power(socket, state);
1da177e4
LT		 349 return 0;
350}
351
352static int yenta_set_io_map(struct pcmcia_socket *sock, struct pccard_io_map *io)
353{
354 struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
355 int map;
356 unsigned char ioctl, addr, enable;
357
358 map = io->map;
359
360 if (map > 1)
361 return -EINVAL;
362
363 enable = I365_ENA_IO(map);
364 addr = exca_readb(socket, I365_ADDRWIN);
365
366 /* Disable the window before changing it.. */
367 if (addr & enable) {
368 addr &= ~enable;
369 exca_writeb(socket, I365_ADDRWIN, addr);
370 }
371
372 exca_writew(socket, I365_IO(map)+I365_W_START, io->start);
373 exca_writew(socket, I365_IO(map)+I365_W_STOP, io->stop);
374
375 ioctl = exca_readb(socket, I365_IOCTL) & ~I365_IOCTL_MASK(map);
376 if (io->flags & MAP_0WS) ioctl |= I365_IOCTL_0WS(map);
377 if (io->flags & MAP_16BIT) ioctl |= I365_IOCTL_16BIT(map);
378 if (io->flags & MAP_AUTOSZ) ioctl |= I365_IOCTL_IOCS16(map);
379 exca_writeb(socket, I365_IOCTL, ioctl);
380
381 if (io->flags & MAP_ACTIVE)
382 exca_writeb(socket, I365_ADDRWIN, addr | enable);
383 return 0;
384}
385
386static int yenta_set_mem_map(struct pcmcia_socket *sock, struct pccard_mem_map *mem)
387{
388 struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
389 struct pci_bus_region region;
390 int map;
391 unsigned char addr, enable;
392 unsigned int start, stop, card_start;
393 unsigned short word;
394
395 pcibios_resource_to_bus(socket->dev, &region, mem->res);
396
397 map = mem->map;
398 start = region.start;
399 stop = region.end;
400 card_start = mem->card_start;
401
402 if (map > 4 || start > stop || ((start ^ stop) >> 24) ||
403 (card_start >> 26) || mem->speed > 1000)
404 return -EINVAL;
405
406 enable = I365_ENA_MEM(map);
407 addr = exca_readb(socket, I365_ADDRWIN);
408 if (addr & enable) {
409 addr &= ~enable;
410 exca_writeb(socket, I365_ADDRWIN, addr);
411 }
412
413 exca_writeb(socket, CB_MEM_PAGE(map), start >> 24);
414
415 word = (start >> 12) & 0x0fff;
416 if (mem->flags & MAP_16BIT)
417 word |= I365_MEM_16BIT;
418 if (mem->flags & MAP_0WS)
419 word |= I365_MEM_0WS;
420 exca_writew(socket, I365_MEM(map) + I365_W_START, word);
421
422 word = (stop >> 12) & 0x0fff;
423 switch (to_cycles(mem->speed)) {
424 case 0: break;
425 case 1: word |= I365_MEM_WS0; break;
426 case 2: word |= I365_MEM_WS1; break;
427 default: word |= I365_MEM_WS1 | I365_MEM_WS0; break;
428 }
429 exca_writew(socket, I365_MEM(map) + I365_W_STOP, word);
430
431 word = ((card_start - start) >> 12) & 0x3fff;
432 if (mem->flags & MAP_WRPROT)
433 word |= I365_MEM_WRPROT;
434 if (mem->flags & MAP_ATTRIB)
435 word |= I365_MEM_REG;
436 exca_writew(socket, I365_MEM(map) + I365_W_OFF, word);
437
438 if (mem->flags & MAP_ACTIVE)
439 exca_writeb(socket, I365_ADDRWIN, addr | enable);
440 return 0;
441}
442
443
fa912bcb 444
7d12e780 445static irqreturn_t yenta_interrupt(int irq, void *dev_id)
1da177e4 446{
fa912bcb
DR		 447 unsigned int events;
448 struct yenta_socket *socket = (struct yenta_socket *) dev_id;
1da177e4
LT		 449 u8 csc;
450 u32 cb_event;
1da177e4
LT		 451
452 /* Clear interrupt status for the event */
453 cb_event = cb_readl(socket, CB_SOCKET_EVENT);
454 cb_writel(socket, CB_SOCKET_EVENT, cb_event);
455
456 csc = exca_readb(socket, I365_CSC);
457
e4115805
DR		 458 if (!(cb_event || csc))
459 return IRQ_NONE;
460
1da177e4
LT		 461 events = (cb_event & (CB_CD1EVENT | CB_CD2EVENT)) ? SS_DETECT : 0 ;
462 events |= (csc & I365_CSC_DETECT) ? SS_DETECT : 0;
463 if (exca_readb(socket, I365_INTCTL) & I365_PC_IOCARD) {
464 events |= (csc & I365_CSC_STSCHG) ? SS_STSCHG : 0;
465 } else {
466 events |= (csc & I365_CSC_BVD1) ? SS_BATDEAD : 0;
467 events |= (csc & I365_CSC_BVD2) ? SS_BATWARN : 0;
468 events |= (csc & I365_CSC_READY) ? SS_READY : 0;
469 }
1da177e4 470
fa912bcb 471 if (events)
1da177e4 472 pcmcia_parse_events(&socket->socket, events);
fa912bcb 473
e4115805 474 return IRQ_HANDLED;
1da177e4
LT		 475}
476
477static void yenta_interrupt_wrapper(unsigned long data)
478{
479 struct yenta_socket *socket = (struct yenta_socket *) data;
480
7d12e780 481 yenta_interrupt(0, (void *)socket);
1da177e4
LT		 482 socket->poll_timer.expires = jiffies + HZ;
483 add_timer(&socket->poll_timer);
484}
485
486static void yenta_clear_maps(struct yenta_socket *socket)
487{
488 int i;
489 struct resource res = { .start = 0, .end = 0x0fff };
490 pccard_io_map io = { 0, 0, 0, 0, 1 };
491 pccard_mem_map mem = { .res = &res, };
492
493 yenta_set_socket(&socket->socket, &dead_socket);
494 for (i = 0; i < 2; i++) {
495 io.map = i;
496 yenta_set_io_map(&socket->socket, &io);
497 }
498 for (i = 0; i < 5; i++) {
499 mem.map = i;
500 yenta_set_mem_map(&socket->socket, &mem);
501 }
502}
503
fa912bcb
DR		 504/* redoes voltage interrogation if required */
505static void yenta_interrogate(struct yenta_socket *socket)
506{
507 u32 state;
508
509 state = cb_readl(socket, CB_SOCKET_STATE);
510 if (!(state & (CB_5VCARD | CB_3VCARD | CB_XVCARD | CB_YVCARD)) ||
511 (state & (CB_CDETECT1 | CB_CDETECT2 | CB_NOTACARD | CB_BADVCCREQ)) ||
512 ((state & (CB_16BITCARD | CB_CBCARD)) == (CB_16BITCARD | CB_CBCARD)))
513 cb_writel(socket, CB_SOCKET_FORCE, CB_CVSTEST);
514}
515
1da177e4
LT		 516/* Called at resume and initialization events */
517static int yenta_sock_init(struct pcmcia_socket *sock)
518{
519 struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
1da177e4
LT		 520
521 exca_writeb(socket, I365_GBLCTL, 0x00);
522 exca_writeb(socket, I365_GENCTL, 0x00);
523
524 /* Redo card voltage interrogation */
fa912bcb 525 yenta_interrogate(socket);
1da177e4
LT		 526
527 yenta_clear_maps(socket);
528
529 if (socket->type && socket->type->sock_init)
530 socket->type->sock_init(socket);
531
532 /* Re-enable CSC interrupts */
533 cb_writel(socket, CB_SOCKET_MASK, CB_CDMASK);
534
535 return 0;
536}
537
538static int yenta_sock_suspend(struct pcmcia_socket *sock)
539{
540 struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
541
542 /* Disable CSC interrupts */
543 cb_writel(socket, CB_SOCKET_MASK, 0x0);
544
545 return 0;
546}
547
548/*
549 * Use an adaptive allocation for the memory resource,
550 * sometimes the memory behind pci bridges is limited:
551 * 1/8 of the size of the io window of the parent.
eb0a90b4
DB		 552 * max 4 MB, min 16 kB. We try very hard to not get below
553 * the "ACC" values, though.
1da177e4
LT		 554 */
555#define BRIDGE_MEM_MAX 4*1024*1024
eb0a90b4 556#define BRIDGE_MEM_ACC 128*1024
1da177e4
LT		 557#define BRIDGE_MEM_MIN 16*1024
558
eb0a90b4
DB		 559#define BRIDGE_IO_MAX 512
560#define BRIDGE_IO_ACC 256
1da177e4
LT		 561#define BRIDGE_IO_MIN 32
562
563#ifndef PCIBIOS_MIN_CARDBUS_IO
564#define PCIBIOS_MIN_CARDBUS_IO PCIBIOS_MIN_IO
565#endif
566
eb0a90b4
DB		 567static int yenta_search_one_res(struct resource *root, struct resource *res,
568 u32 min)
569{
570 u32 align, size, start, end;
571
572 if (res->flags & IORESOURCE_IO) {
573 align = 1024;
574 size = BRIDGE_IO_MAX;
575 start = PCIBIOS_MIN_CARDBUS_IO;
576 end = ~0U;
577 } else {
578 unsigned long avail = root->end - root->start;
579 int i;
580 size = BRIDGE_MEM_MAX;
581 if (size > avail/8) {
582 size=(avail+1)/8;
583 /* round size down to next power of 2 */
584 i = 0;
585 while ((size /= 2) != 0)
586 i++;
587 size = 1 << i;
588 }
589 if (size < min)
590 size = min;
591 align = size;
592 start = PCIBIOS_MIN_MEM;
593 end = ~0U;
594 }
595
596 do {
597 if (allocate_resource(root, res, size, start, end, align,
598 NULL, NULL)==0) {
599 return 1;
600 }
601 size = size/2;
602 align = size;
603 } while (size >= min);
604
605 return 0;
606}
607
608
609static int yenta_search_res(struct yenta_socket *socket, struct resource *res,
610 u32 min)
611{
612 int i;
613 for (i=0; i<PCI_BUS_NUM_RESOURCES; i++) {
614 struct resource * root = socket->dev->bus->resource[i];
615 if (!root)
616 continue;
617
618 if ((res->flags ^ root->flags) &
619 (IORESOURCE_IO | IORESOURCE_MEM | IORESOURCE_PREFETCH))
620 continue; /* Wrong type */
621
622 if (yenta_search_one_res(root, res, min))
623 return 1;
624 }
625 return 0;
626}
627
b3743fa4 628static int yenta_allocate_res(struct yenta_socket *socket, int nr, unsigned type, int addr_start, int addr_end)
1da177e4 629{
1da177e4 630 struct resource *root, *res;
43c34735 631 struct pci_bus_region region;
1da177e4
LT		 632 unsigned mask;
633
7925407a
IK		 634 res = socket->dev->resource + PCI_BRIDGE_RESOURCES + nr;
635 /* Already allocated? */
636 if (res->parent)
b3743fa4 637 return 0;
7925407a 638
1da177e4
LT		 639 /* The granularity of the memory limit is 4kB, on IO it's 4 bytes */
640 mask = ~0xfff;
641 if (type & IORESOURCE_IO)
642 mask = ~3;
643
43c34735 644 res->name = socket->dev->subordinate->name;
1da177e4 645 res->flags = type;
1da177e4 646
43c34735
DB		 647 region.start = config_readl(socket, addr_start) & mask;
648 region.end = config_readl(socket, addr_end) | ~mask;
649 if (region.start && region.end > region.start && !override_bios) {
650 pcibios_bus_to_resource(socket->dev, res, &region);
862104e5
DB		 651 root = pci_find_parent_resource(socket->dev, res);
652 if (root && (request_resource(root, res) == 0))
b3743fa4 653 return 0;
862104e5 654 printk(KERN_INFO "yenta %s: Preassigned resource %d busy or not available, reconfiguring...\n",
1da177e4 655 pci_name(socket->dev), nr);
1da177e4
LT		 656 }
657
658 if (type & IORESOURCE_IO) {
eb0a90b4
DB		 659 if ((yenta_search_res(socket, res, BRIDGE_IO_MAX)) ||
660 (yenta_search_res(socket, res, BRIDGE_IO_ACC)) ||
b3743fa4
DB		 661 (yenta_search_res(socket, res, BRIDGE_IO_MIN)))
662 return 1;
1da177e4 663 } else {
eb0a90b4
DB		 664 if (type & IORESOURCE_PREFETCH) {
665 if ((yenta_search_res(socket, res, BRIDGE_MEM_MAX)) ||
666 (yenta_search_res(socket, res, BRIDGE_MEM_ACC)) ||
b3743fa4
DB		 667 (yenta_search_res(socket, res, BRIDGE_MEM_MIN)))
668 return 1;
eb0a90b4
DB		 669 /* Approximating prefetchable by non-prefetchable */
670 res->flags = IORESOURCE_MEM;
1da177e4 671 }
eb0a90b4
DB		 672 if ((yenta_search_res(socket, res, BRIDGE_MEM_MAX)) ||
673 (yenta_search_res(socket, res, BRIDGE_MEM_ACC)) ||
b3743fa4
DB		 674 (yenta_search_res(socket, res, BRIDGE_MEM_MIN)))
675 return 1;
eb0a90b4
DB		 676 }
677
1da177e4 678 printk(KERN_INFO "yenta %s: no resource of type %x available, trying to continue...\n",
eb0a90b4
DB		 679 pci_name(socket->dev), type);
680 res->start = res->end = res->flags = 0;
b3743fa4 681 return 0;
1da177e4
LT		 682}
683
684/*
685 * Allocate the bridge mappings for the device..
686 */
687static void yenta_allocate_resources(struct yenta_socket *socket)
688{
b3743fa4
DB		 689 int program = 0;
690 program += yenta_allocate_res(socket, 0, IORESOURCE_IO,
27879835 691 PCI_CB_IO_BASE_0, PCI_CB_IO_LIMIT_0);
b3743fa4 692 program += yenta_allocate_res(socket, 1, IORESOURCE_IO,
27879835 693 PCI_CB_IO_BASE_1, PCI_CB_IO_LIMIT_1);
b3743fa4 694 program += yenta_allocate_res(socket, 2, IORESOURCE_MEM|IORESOURCE_PREFETCH,
27879835 695 PCI_CB_MEMORY_BASE_0, PCI_CB_MEMORY_LIMIT_0);
b3743fa4 696 program += yenta_allocate_res(socket, 3, IORESOURCE_MEM,
27879835 697 PCI_CB_MEMORY_BASE_1, PCI_CB_MEMORY_LIMIT_1);
b3743fa4
DB		 698 if (program)
699 pci_setup_cardbus(socket->dev->subordinate);
1da177e4
LT		 700}
701
702
703/*
704 * Free the bridge mappings for the device..
705 */
706static void yenta_free_resources(struct yenta_socket *socket)
707{
708 int i;
709 for (i=0;i<4;i++) {
710 struct resource *res;
711 res = socket->dev->resource + PCI_BRIDGE_RESOURCES + i;
712 if (res->start != 0 && res->end != 0)
713 release_resource(res);
b3743fa4 714 res->start = res->end = res->flags = 0;
1da177e4
LT		 715 }
716}
717
718
719/*
720 * Close it down - release our resources and go home..
721 */
722static void yenta_close(struct pci_dev *dev)
723{
724 struct yenta_socket *sock = pci_get_drvdata(dev);
725
030ee39c
LT		 726 /* Remove the register attributes */
727 device_remove_file(&dev->dev, &dev_attr_yenta_registers);
728
1da177e4
LT		 729 /* we don't want a dying socket registered */
730 pcmcia_unregister_socket(&sock->socket);
731
732 /* Disable all events so we don't die in an IRQ storm */
733 cb_writel(sock, CB_SOCKET_MASK, 0x0);
734 exca_writeb(sock, I365_CSCINT, 0);
735
736 if (sock->cb_irq)
737 free_irq(sock->cb_irq, sock);
738 else
739 del_timer_sync(&sock->poll_timer);
740
741 if (sock->base)
742 iounmap(sock->base);
743 yenta_free_resources(sock);
744
745 pci_release_regions(dev);
746 pci_disable_device(dev);
747 pci_set_drvdata(dev, NULL);
748}
749
750
751static struct pccard_operations yenta_socket_operations = {
752 .init = yenta_sock_init,
753 .suspend = yenta_sock_suspend,
754 .get_status = yenta_get_status,
1da177e4
LT		 755 .set_socket = yenta_set_socket,
756 .set_io_map = yenta_set_io_map,
757 .set_mem_map = yenta_set_mem_map,
758};
759
760
63e7ebd0 761#ifdef CONFIG_YENTA_TI
1da177e4 762#include "ti113x.h"
63e7ebd0
DR		 763#endif
764#ifdef CONFIG_YENTA_RICOH
1da177e4 765#include "ricoh.h"
63e7ebd0
DR		 766#endif
767#ifdef CONFIG_YENTA_TOSHIBA
1da177e4 768#include "topic.h"
63e7ebd0
DR		 769#endif
770#ifdef CONFIG_YENTA_O2
1da177e4 771#include "o2micro.h"
63e7ebd0 772#endif
1da177e4
LT		 773
774enum {
775 CARDBUS_TYPE_DEFAULT = -1,
776 CARDBUS_TYPE_TI,
777 CARDBUS_TYPE_TI113X,
778 CARDBUS_TYPE_TI12XX,
779 CARDBUS_TYPE_TI1250,
780 CARDBUS_TYPE_RICOH,
ea2f1590 781 CARDBUS_TYPE_TOPIC95,
1da177e4
LT		 782 CARDBUS_TYPE_TOPIC97,
783 CARDBUS_TYPE_O2MICRO,
8c3520d4 784 CARDBUS_TYPE_ENE,
1da177e4
LT		 785};
786
787/*
788 * Different cardbus controllers have slightly different
789 * initialization sequences etc details. List them here..
790 */
791static struct cardbus_type cardbus_type[] = {
63e7ebd0 792#ifdef CONFIG_YENTA_TI
1da177e4
LT		 793 [CARDBUS_TYPE_TI] = {
794 .override = ti_override,
795 .save_state = ti_save_state,
796 .restore_state = ti_restore_state,
797 .sock_init = ti_init,
798 },
799 [CARDBUS_TYPE_TI113X] = {
800 .override = ti113x_override,
801 .save_state = ti_save_state,
802 .restore_state = ti_restore_state,
803 .sock_init = ti_init,
804 },
805 [CARDBUS_TYPE_TI12XX] = {
806 .override = ti12xx_override,
807 .save_state = ti_save_state,
808 .restore_state = ti_restore_state,
809 .sock_init = ti_init,
810 },
811 [CARDBUS_TYPE_TI1250] = {
812 .override = ti1250_override,
813 .save_state = ti_save_state,
814 .restore_state = ti_restore_state,
815 .sock_init = ti_init,
816 },
63e7ebd0
DR		 817#endif
818#ifdef CONFIG_YENTA_RICOH
1da177e4
LT		 819 [CARDBUS_TYPE_RICOH] = {
820 .override = ricoh_override,
821 .save_state = ricoh_save_state,
822 .restore_state = ricoh_restore_state,
823 },
63e7ebd0
DR		 824#endif
825#ifdef CONFIG_YENTA_TOSHIBA
ea2f1590
DR		 826 [CARDBUS_TYPE_TOPIC95] = {
827 .override = topic95_override,
828 },
1da177e4
LT		 829 [CARDBUS_TYPE_TOPIC97] = {
830 .override = topic97_override,
831 },
63e7ebd0
DR		 832#endif
833#ifdef CONFIG_YENTA_O2
1da177e4
LT		 834 [CARDBUS_TYPE_O2MICRO] = {
835 .override = o2micro_override,
836 .restore_state = o2micro_restore_state,
837 },
63e7ebd0
DR		 838#endif
839#ifdef CONFIG_YENTA_TI
8c3520d4
DR		 840 [CARDBUS_TYPE_ENE] = {
841 .override = ene_override,
842 .save_state = ti_save_state,
843 .restore_state = ti_restore_state,
844 .sock_init = ti_init,
845 },
63e7ebd0 846#endif
1da177e4
LT		 847};
848
849
850/*
851 * Only probe "regular" interrupts, don't
852 * touch dangerous spots like the mouse irq,
853 * because there are mice that apparently
854 * get really confused if they get fondled
855 * too intimately.
856 *
857 * Default to 11, 10, 9, 7, 6, 5, 4, 3.
858 */
859static u32 isa_interrupts = 0x0ef8;
860
861static unsigned int yenta_probe_irq(struct yenta_socket *socket, u32 isa_irq_mask)
862{
863 int i;
864 unsigned long val;
1da177e4
LT		 865 u32 mask;
866
1da177e4
LT		 867 /*
868 * Probe for usable interrupts using the force
869 * register to generate bogus card status events.
870 */
871 cb_writel(socket, CB_SOCKET_EVENT, -1);
872 cb_writel(socket, CB_SOCKET_MASK, CB_CSTSMASK);
873 exca_writeb(socket, I365_CSCINT, 0);
874 val = probe_irq_on() & isa_irq_mask;
875 for (i = 1; i < 16; i++) {
876 if (!((val >> i) & 1))
877 continue;
878 exca_writeb(socket, I365_CSCINT, I365_CSC_STSCHG | (i << 4));
879 cb_writel(socket, CB_SOCKET_FORCE, CB_FCARDSTS);
880 udelay(100);
881 cb_writel(socket, CB_SOCKET_EVENT, -1);
882 }
883 cb_writel(socket, CB_SOCKET_MASK, 0);
884 exca_writeb(socket, I365_CSCINT, 0);
885
886 mask = probe_irq_mask(val) & 0xffff;
887
1da177e4
LT		 888 return mask;
889}
890
891
63e7ebd0
DR		 892/**
893 * yenta PCI irq probing.
894 * currently only used in the TI/EnE initialization code
895 */
896#ifdef CONFIG_YENTA_TI
897
1da177e4 898/* interrupt handler, only used during probing */
7d12e780 899static irqreturn_t yenta_probe_handler(int irq, void *dev_id)
1da177e4
LT		 900{
901 struct yenta_socket *socket = (struct yenta_socket *) dev_id;
902 u8 csc;
903 u32 cb_event;
904
905 /* Clear interrupt status for the event */
906 cb_event = cb_readl(socket, CB_SOCKET_EVENT);
907 cb_writel(socket, CB_SOCKET_EVENT, -1);
908 csc = exca_readb(socket, I365_CSC);
909
910 if (cb_event || csc) {
911 socket->probe_status = 1;
912 return IRQ_HANDLED;
913 }
914
915 return IRQ_NONE;
916}
917
918/* probes the PCI interrupt, use only on override functions */
919static int yenta_probe_cb_irq(struct yenta_socket *socket)
920{
1da177e4
LT		 921 if (!socket->cb_irq)
922 return -1;
923
924 socket->probe_status = 0;
925
dace1453 926 if (request_irq(socket->cb_irq, yenta_probe_handler, IRQF_SHARED, "yenta", socket)) {
1da177e4
LT		 927 printk(KERN_WARNING "Yenta: request_irq() in yenta_probe_cb_irq() failed!\n");
928 return -1;
929 }
930
931 /* generate interrupt, wait */
932 exca_writeb(socket, I365_CSCINT, I365_CSC_STSCHG);
933 cb_writel(socket, CB_SOCKET_EVENT, -1);
934 cb_writel(socket, CB_SOCKET_MASK, CB_CSTSMASK);
935 cb_writel(socket, CB_SOCKET_FORCE, CB_FCARDSTS);
a413c090 936
1da177e4
LT		 937 msleep(100);
938
939 /* disable interrupts */
940 cb_writel(socket, CB_SOCKET_MASK, 0);
941 exca_writeb(socket, I365_CSCINT, 0);
942 cb_writel(socket, CB_SOCKET_EVENT, -1);
943 exca_readb(socket, I365_CSC);
944
945 free_irq(socket->cb_irq, socket);
946
947 return (int) socket->probe_status;
948}
949
63e7ebd0 950#endif /* CONFIG_YENTA_TI */
1da177e4
LT		 951
952
953/*
954 * Set static data that doesn't need re-initializing..
955 */
956static void yenta_get_socket_capabilities(struct yenta_socket *socket, u32 isa_irq_mask)
957{
1da177e4 958 socket->socket.pci_irq = socket->cb_irq;
fa912bcb
DR		 959 if (isa_probe)
960 socket->socket.irq_mask = yenta_probe_irq(socket, isa_irq_mask);
961 else
962 socket->socket.irq_mask = 0;
1da177e4
LT		 963
964 printk(KERN_INFO "Yenta: 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 */
971static void yenta_config_init(struct yenta_socket *socket)
972{
973 u16 bridge;
974 struct pci_dev *dev = socket->dev;
8e5d17eb 975 struct pci_bus_region region;
1da177e4 976
8e5d17eb 977 pcibios_resource_to_bus(socket->dev, &region, &dev->resource[0]);
1da177e4
LT		 978
979 config_writel(socket, CB_LEGACY_MODE_BASE, 0);
8e5d17eb 980 config_writel(socket, PCI_BASE_ADDRESS_0, region.start);
1da177e4
LT		 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);
a413c090
DR		 1003 bridge &= ~(CB_BRIDGE_CRST | CB_BRIDGE_PREFETCH1 | CB_BRIDGE_ISAEN | CB_BRIDGE_VGAEN);
1004 bridge |= CB_BRIDGE_PREFETCH0 | CB_BRIDGE_POSTEN;
1da177e4
LT		 1005 config_writew(socket, CB_BRIDGE_CONTROL, bridge);
1006}
1007
b435261b 1008/**
66005216 1009 * yenta_fixup_parent_bridge - Fix subordinate bus# of the parent bridge
b435261b
BK		 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 */
1018static 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 printk(KERN_WARNING "Yenta: Upper limit for fixing this "
1056 "bridge's parent bridge: #%02x\n", upper_limit);
1057
1058 /* If we have room to increase the bridge's subordinate number, */
1059 if (bridge_to_fix->subordinate < upper_limit) {
1060
1061 /* use the highest number of the hidden bus, within limits */
1062 unsigned char subordinate_to_assign =
1063 min(cardbus_bridge->subordinate, upper_limit);
1064
1065 printk(KERN_INFO "Yenta: Raising subordinate bus# of parent "
1066 "bus (#%02x) from #%02x to #%02x\n",
1067 bridge_to_fix->number,
1068 bridge_to_fix->subordinate, subordinate_to_assign);
1069
1070 /* Save the new subordinate in the bus struct of the bridge */
1071 bridge_to_fix->subordinate = subordinate_to_assign;
1072
1073 /* and update the PCI config space with the new subordinate */
1074 pci_write_config_byte(bridge_to_fix->self,
1075 PCI_SUBORDINATE_BUS, bridge_to_fix->subordinate);
1076 }
1077}
1078
1da177e4
LT		 1079/*
1080 * Initialize a cardbus controller. Make sure we have a usable
1081 * interrupt, and that we can map the cardbus area. Fill in the
1082 * socket information structure..
1083 */
1084static int __devinit yenta_probe (struct pci_dev *dev, const struct pci_device_id *id)
1085{
1086 struct yenta_socket *socket;
1087 int ret;
c7fb0b35
IK		 1088
1089 /*
1090 * If we failed to assign proper bus numbers for this cardbus
1091 * controller during PCI probe, its subordinate pci_bus is NULL.
1092 * Bail out if so.
1093 */
1094 if (!dev->subordinate) {
5a23f347
LT		 1095 printk(KERN_ERR "Yenta: no bus associated with %s! "
1096 "(try 'pci=assign-busses')\n", pci_name(dev));
c7fb0b35
IK		 1097 return -ENODEV;
1098 }
1099
8084b372 1100 socket = kzalloc(sizeof(struct yenta_socket), GFP_KERNEL);
1da177e4
LT		 1101 if (!socket)
1102 return -ENOMEM;
1da177e4
LT		 1103
1104 /* prepare pcmcia_socket */
1105 socket->socket.ops = &yenta_socket_operations;
1106 socket->socket.resource_ops = &pccard_nonstatic_ops;
1107 socket->socket.dev.dev = &dev->dev;
1108 socket->socket.driver_data = socket;
1109 socket->socket.owner = THIS_MODULE;
5bc6b68a
RK		 1110 socket->socket.features = SS_CAP_PAGE_REGS | SS_CAP_PCCARD;
1111 socket->socket.map_size = 0x1000;
1112 socket->socket.cb_dev = dev;
1da177e4
LT		 1113
1114 /* prepare struct yenta_socket */
1115 socket->dev = dev;
1116 pci_set_drvdata(dev, socket);
1117
1118 /*
1119 * Do some basic sanity checking..
1120 */
1121 if (pci_enable_device(dev)) {
1122 ret = -EBUSY;
1123 goto free;
1124 }
1125
1126 ret = pci_request_regions(dev, "yenta_socket");
1127 if (ret)
1128 goto disable;
1129
1130 if (!pci_resource_start(dev, 0)) {
1131 printk(KERN_ERR "No cardbus resource!\n");
1132 ret = -ENODEV;
1133 goto release;
1134 }
1135
1136 /*
1137 * Ok, start setup.. Map the cardbus registers,
1138 * and request the IRQ.
1139 */
1140 socket->base = ioremap(pci_resource_start(dev, 0), 0x1000);
1141 if (!socket->base) {
1142 ret = -ENOMEM;
1143 goto release;
1144 }
1145
1146 /*
1147 * report the subsystem vendor and device for help debugging
1148 * the irq stuff...
1149 */
1150 printk(KERN_INFO "Yenta: CardBus bridge found at %s [%04x:%04x]\n",
1151 pci_name(dev), dev->subsystem_vendor, dev->subsystem_device);
1152
1153 yenta_config_init(socket);
1154
1155 /* Disable all events */
1156 cb_writel(socket, CB_SOCKET_MASK, 0x0);
1157
1158 /* Set up the bridge regions.. */
1159 yenta_allocate_resources(socket);
1160
1161 socket->cb_irq = dev->irq;
1162
1163 /* Do we have special options for the device? */
1164 if (id->driver_data != CARDBUS_TYPE_DEFAULT &&
1165 id->driver_data < ARRAY_SIZE(cardbus_type)) {
1166 socket->type = &cardbus_type[id->driver_data];
1167
1168 ret = socket->type->override(socket);
1169 if (ret < 0)
1170 goto unmap;
1171 }
1172
1173 /* We must finish initialization here */
1174
dace1453 1175 if (!socket->cb_irq || request_irq(socket->cb_irq, yenta_interrupt, IRQF_SHARED, "yenta", socket)) {
1da177e4
LT		 1176 /* No IRQ or request_irq failed. Poll */
1177 socket->cb_irq = 0; /* But zero is a valid IRQ number. */
1178 init_timer(&socket->poll_timer);
1179 socket->poll_timer.function = yenta_interrupt_wrapper;
1180 socket->poll_timer.data = (unsigned long)socket;
1181 socket->poll_timer.expires = jiffies + HZ;
1182 add_timer(&socket->poll_timer);
5bc6b68a
RK		 1183 printk(KERN_INFO "Yenta: no PCI IRQ, CardBus support disabled for this socket.\n"
1184 KERN_INFO "Yenta: check your BIOS CardBus, BIOS IRQ or ACPI settings.\n");
1185 } else {
1186 socket->socket.features |= SS_CAP_CARDBUS;
1da177e4
LT		 1187 }
1188
1189 /* Figure out what the dang thing can do for the PCMCIA layer... */
fa912bcb 1190 yenta_interrogate(socket);
1da177e4
LT		 1191 yenta_get_socket_capabilities(socket, isa_interrupts);
1192 printk(KERN_INFO "Socket status: %08x\n", cb_readl(socket, CB_SOCKET_STATE));
1193
b435261b
BK		 1194 yenta_fixup_parent_bridge(dev->subordinate);
1195
1da177e4
LT		 1196 /* Register it with the pcmcia layer.. */
1197 ret = pcmcia_register_socket(&socket->socket);
030ee39c
LT		 1198 if (ret == 0) {
1199 /* Add the yenta register attributes */
1200 device_create_file(&dev->dev, &dev_attr_yenta_registers);
1da177e4 1201 goto out;
030ee39c 1202 }
1da177e4
LT		 1203
1204 unmap:
1205 iounmap(socket->base);
1206 release:
1207 pci_release_regions(dev);
1208 disable:
1209 pci_disable_device(dev);
1210 free:
1211 kfree(socket);
1212 out:
1213 return ret;
1214}
1215
1216
1217static int yenta_dev_suspend (struct pci_dev *dev, pm_message_t state)
1218{
1219 struct yenta_socket *socket = pci_get_drvdata(dev);
1220 int ret;
1221
1222 ret = pcmcia_socket_dev_suspend(&dev->dev, state);
1223
1224 if (socket) {
1225 if (socket->type && socket->type->save_state)
1226 socket->type->save_state(socket);
1227
1228 /* FIXME: pci_save_state needs to have a better interface */
1229 pci_save_state(dev);
1230 pci_read_config_dword(dev, 16*4, &socket->saved_state[0]);
1231 pci_read_config_dword(dev, 17*4, &socket->saved_state[1]);
d58da590 1232 pci_disable_device(dev);
1da177e4
LT		 1233
1234 /*
1235 * Some laptops (IBM T22) do not like us putting the Cardbus
1236 * bridge into D3. At a guess, some other laptop will
1237 * probably require this, so leave it commented out for now.
1238 */
1239 /* pci_set_power_state(dev, 3); */
1240 }
1241
1242 return ret;
1243}
1244
1245
1246static int yenta_dev_resume (struct pci_dev *dev)
1247{
1248 struct yenta_socket *socket = pci_get_drvdata(dev);
1249
1250 if (socket) {
1251 pci_set_power_state(dev, 0);
1252 /* FIXME: pci_restore_state needs to have a better interface */
1253 pci_restore_state(dev);
1254 pci_write_config_dword(dev, 16*4, socket->saved_state[0]);
1255 pci_write_config_dword(dev, 17*4, socket->saved_state[1]);
d58da590
DSL		 1256 pci_enable_device(dev);
1257 pci_set_master(dev);
1da177e4
LT		 1258
1259 if (socket->type && socket->type->restore_state)
1260 socket->type->restore_state(socket);
1261 }
1262
1263 return pcmcia_socket_dev_resume(&dev->dev);
1264}
1265
1266
1267#define CB_ID(vend,dev,type) \
1268 { \
1269 .vendor = vend, \
1270 .device = dev, \
1271 .subvendor = PCI_ANY_ID, \
1272 .subdevice = PCI_ANY_ID, \
1273 .class = PCI_CLASS_BRIDGE_CARDBUS << 8, \
1274 .class_mask = ~0, \
1275 .driver_data = CARDBUS_TYPE_##type, \
1276 }
1277
1278static struct pci_device_id yenta_table [] = {
1279 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1031, TI),
1280
1281 /*
1282 * TBD: Check if these TI variants can use more
1283 * advanced overrides instead. (I can't get the
1284 * data sheets for these devices. --rmk)
1285 */
63e7ebd0 1286#ifdef CONFIG_YENTA_TI
1da177e4
LT		 1287 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1210, TI),
1288
1289 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1130, TI113X),
1290 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1131, TI113X),
1291
1292 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1211, TI12XX),
1293 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1220, TI12XX),
1294 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1221, TI12XX),
1295 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1225, TI12XX),
1296 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1251A, TI12XX),
1297 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1251B, TI12XX),
1298 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1420, TI12XX),
1299 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1450, TI12XX),
1300 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1451A, TI12XX),
1301 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1510, TI12XX),
1302 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1520, TI12XX),
1303 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1620, TI12XX),
1304 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4410, TI12XX),
1305 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4450, TI12XX),
1306 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4451, TI12XX),
1307 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4510, TI12XX),
1308 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4520, TI12XX),
1309
1310 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1250, TI1250),
1311 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1410, TI1250),
1312
6c1a10db
DR		 1313 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_XX21_XX11, TI12XX),
1314 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_X515, TI12XX),
59e35ba1 1315 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_XX12, TI12XX),
6c1a10db
DR		 1316 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_X420, TI12XX),
1317 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_X620, TI12XX),
1318 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_7410, TI12XX),
1319 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_7510, TI12XX),
1320 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_7610, TI12XX),
1321
f9cb8b71
DR		 1322 CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_710, TI12XX),
1323 CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_712, TI12XX),
1324 CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_720, TI12XX),
1325 CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_722, TI12XX),
8c3520d4
DR		 1326 CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1211, ENE),
1327 CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1225, ENE),
1328 CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1410, ENE),
1329 CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1420, ENE),
63e7ebd0 1330#endif /* CONFIG_YENTA_TI */
1da177e4 1331
63e7ebd0 1332#ifdef CONFIG_YENTA_RICOH
1da177e4
LT		 1333 CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C465, RICOH),
1334 CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C466, RICOH),
1335 CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C475, RICOH),
1336 CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C476, RICOH),
1337 CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C478, RICOH),
63e7ebd0 1338#endif
1da177e4 1339
63e7ebd0 1340#ifdef CONFIG_YENTA_TOSHIBA
ea2f1590 1341 CB_ID(PCI_VENDOR_ID_TOSHIBA, PCI_DEVICE_ID_TOSHIBA_TOPIC95, TOPIC95),
1da177e4
LT		 1342 CB_ID(PCI_VENDOR_ID_TOSHIBA, PCI_DEVICE_ID_TOSHIBA_TOPIC97, TOPIC97),
1343 CB_ID(PCI_VENDOR_ID_TOSHIBA, PCI_DEVICE_ID_TOSHIBA_TOPIC100, TOPIC97),
63e7ebd0 1344#endif
1da177e4 1345
63e7ebd0 1346#ifdef CONFIG_YENTA_O2
1da177e4 1347 CB_ID(PCI_VENDOR_ID_O2, PCI_ANY_ID, O2MICRO),
63e7ebd0 1348#endif
1da177e4
LT		 1349
1350 /* match any cardbus bridge */
1351 CB_ID(PCI_ANY_ID, PCI_ANY_ID, DEFAULT),
1352 { /* all zeroes */ }
1353};
1354MODULE_DEVICE_TABLE(pci, yenta_table);
1355
1356
1357static struct pci_driver yenta_cardbus_driver = {
1358 .name = "yenta_cardbus",
1359 .id_table = yenta_table,
1360 .probe = yenta_probe,
1361 .remove = __devexit_p(yenta_close),
1362 .suspend = yenta_dev_suspend,
1363 .resume = yenta_dev_resume,
1364};
1365
1366
1367static int __init yenta_socket_init(void)
1368{
1369 return pci_register_driver (&yenta_cardbus_driver);
1370}
1371
1372
1373static void __exit yenta_socket_exit (void)
1374{
1375 pci_unregister_driver (&yenta_cardbus_driver);
1376}
1377
1378
1379module_init(yenta_socket_init);
1380module_exit(yenta_socket_exit);
1381
1382MODULE_LICENSE("GPL");
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