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[PATCH] dquot: add proper locking when using current->signal->tty
[usb.git] / drivers / pcmcia / m32r_cfc.c
blob9e768eaef17a39955dbed341a1410861d732f679
1 /*
2 * drivers/pcmcia/m32r_cfc.c
3 *
4 * Device driver for the CFC functionality of M32R.
5 *
6 * Copyright (c) 2001, 2002, 2003, 2004
7 * Hiroyuki Kondo, Naoto Sugai, Hayato Fujiwara
8 */
9
10 #include <linux/module.h>
11 #include <linux/moduleparam.h>
12 #include <linux/init.h>
13 #include <linux/types.h>
14 #include <linux/fcntl.h>
15 #include <linux/string.h>
16 #include <linux/kernel.h>
17 #include <linux/errno.h>
18 #include <linux/timer.h>
19 #include <linux/sched.h>
20 #include <linux/slab.h>
21 #include <linux/ioport.h>
22 #include <linux/delay.h>
23 #include <linux/workqueue.h>
24 #include <linux/interrupt.h>
25 #include <linux/platform_device.h>
26 #include <linux/bitops.h>
27 #include <asm/irq.h>
28 #include <asm/io.h>
29 #include <asm/system.h>
30
31 #include <pcmcia/cs_types.h>
32 #include <pcmcia/ss.h>
33 #include <pcmcia/cs.h>
34
35 #undef MAX_IO_WIN /* FIXME */
36 #define MAX_IO_WIN 1
37 #undef MAX_WIN /* FIXME */
38 #define MAX_WIN 1
39
40 #include "m32r_cfc.h"
41
42 #ifdef DEBUG
43 static int m32r_cfc_debug;
44 module_param(m32r_cfc_debug, int, 0644);
45 #define debug(lvl, fmt, arg...) do { \
46 if (m32r_cfc_debug > (lvl)) \
47 printk(KERN_DEBUG "m32r_cfc: " fmt , ## arg); \
48 } while (0)
49 #else
50 #define debug(n, args...) do { } while (0)
51 #endif
52
53 /* Poll status interval -- 0 means default to interrupt */
54 static int poll_interval = 0;
55
56 typedef enum pcc_space { as_none = 0, as_comm, as_attr, as_io } pcc_as_t;
57
58 typedef struct pcc_socket {
59 u_short type, flags;
60 struct pcmcia_socket socket;
61 unsigned int number;
62 kio_addr_t ioaddr;
63 u_long mapaddr;
64 u_long base; /* PCC register base */
65 u_char cs_irq1, cs_irq2, intr;
66 pccard_io_map io_map[MAX_IO_WIN];
67 pccard_mem_map mem_map[MAX_WIN];
68 u_char io_win;
69 u_char mem_win;
70 pcc_as_t current_space;
71 u_char last_iodbex;
72 #ifdef CONFIG_PROC_FS
73 struct proc_dir_entry *proc;
74 #endif
75 } pcc_socket_t;
76
77 static int pcc_sockets = 0;
78 static pcc_socket_t socket[M32R_MAX_PCC] = {
79 { 0, }, /* ... */
80 };
81
82 /*====================================================================*/
83
84 static unsigned int pcc_get(u_short, unsigned int);
85 static void pcc_set(u_short, unsigned int , unsigned int );
86
87 static DEFINE_SPINLOCK(pcc_lock);
88
89 #if !defined(CONFIG_PLAT_USRV)
90 static inline u_long pcc_port2addr(unsigned long port, int size) {
91 u_long addr = 0;
92 u_long odd;
93
94 if (size == 1) { /* byte access */
95 odd = (port&1) << 11;
96 port -= port & 1;
97 addr = CFC_IO_MAPBASE_BYTE - CFC_IOPORT_BASE + odd + port;
98 } else if (size == 2)
99 addr = CFC_IO_MAPBASE_WORD - CFC_IOPORT_BASE + port;
100
101 return addr;
102 }
103 #else /* CONFIG_PLAT_USRV */
104 static inline u_long pcc_port2addr(unsigned long port, int size) {
105 u_long odd;
106 u_long addr = ((port - CFC_IOPORT_BASE) & 0xf000) << 8;
107
108 if (size == 1) { /* byte access */
109 odd = port & 1;
110 port -= odd;
111 odd <<= 11;
112 addr = (addr | CFC_IO_MAPBASE_BYTE) + odd + (port & 0xfff);
113 } else if (size == 2) /* word access */
114 addr = (addr | CFC_IO_MAPBASE_WORD) + (port & 0xfff);
115
116 return addr;
117 }
118 #endif /* CONFIG_PLAT_USRV */
119
120 void pcc_ioread_byte(int sock, unsigned long port, void *buf, size_t size,
121 size_t nmemb, int flag)
122 {
123 u_long addr;
124 unsigned char *bp = (unsigned char *)buf;
125 unsigned long flags;
126
127 debug(3, "m32r_cfc: pcc_ioread_byte: sock=%d, port=%#lx, buf=%p, "
128 "size=%u, nmemb=%d, flag=%d\n",
129 sock, port, buf, size, nmemb, flag);
130
131 addr = pcc_port2addr(port, 1);
132 if (!addr) {
133 printk("m32r_cfc:ioread_byte null port :%#lx\n",port);
134 return;
135 }
136 debug(3, "m32r_cfc: pcc_ioread_byte: addr=%#lx\n", addr);
137
138 spin_lock_irqsave(&pcc_lock, flags);
139 /* read Byte */
140 while (nmemb--)
141 *bp++ = readb(addr);
142 spin_unlock_irqrestore(&pcc_lock, flags);
143 }
144
145 void pcc_ioread_word(int sock, unsigned long port, void *buf, size_t size,
146 size_t nmemb, int flag)
147 {
148 u_long addr;
149 unsigned short *bp = (unsigned short *)buf;
150 unsigned long flags;
151
152 debug(3, "m32r_cfc: pcc_ioread_word: sock=%d, port=%#lx, "
153 "buf=%p, size=%u, nmemb=%d, flag=%d\n",
154 sock, port, buf, size, nmemb, flag);
155
156 if (size != 2)
157 printk("m32r_cfc: ioread_word :illigal size %u : %#lx\n", size,
158 port);
159 if (size == 9)
160 printk("m32r_cfc: ioread_word :insw \n");
161
162 addr = pcc_port2addr(port, 2);
163 if (!addr) {
164 printk("m32r_cfc:ioread_word null port :%#lx\n",port);
165 return;
166 }
167 debug(3, "m32r_cfc: pcc_ioread_word: addr=%#lx\n", addr);
168
169 spin_lock_irqsave(&pcc_lock, flags);
170 /* read Word */
171 while (nmemb--)
172 *bp++ = readw(addr);
173 spin_unlock_irqrestore(&pcc_lock, flags);
174 }
175
176 void pcc_iowrite_byte(int sock, unsigned long port, void *buf, size_t size,
177 size_t nmemb, int flag)
178 {
179 u_long addr;
180 unsigned char *bp = (unsigned char *)buf;
181 unsigned long flags;
182
183 debug(3, "m32r_cfc: pcc_iowrite_byte: sock=%d, port=%#lx, "
184 "buf=%p, size=%u, nmemb=%d, flag=%d\n",
185 sock, port, buf, size, nmemb, flag);
186
187 /* write Byte */
188 addr = pcc_port2addr(port, 1);
189 if (!addr) {
190 printk("m32r_cfc:iowrite_byte null port:%#lx\n",port);
191 return;
192 }
193 debug(3, "m32r_cfc: pcc_iowrite_byte: addr=%#lx\n", addr);
194
195 spin_lock_irqsave(&pcc_lock, flags);
196 while (nmemb--)
197 writeb(*bp++, addr);
198 spin_unlock_irqrestore(&pcc_lock, flags);
199 }
200
201 void pcc_iowrite_word(int sock, unsigned long port, void *buf, size_t size,
202 size_t nmemb, int flag)
203 {
204 u_long addr;
205 unsigned short *bp = (unsigned short *)buf;
206 unsigned long flags;
207
208 debug(3, "m32r_cfc: pcc_iowrite_word: sock=%d, port=%#lx, "
209 "buf=%p, size=%u, nmemb=%d, flag=%d\n",
210 sock, port, buf, size, nmemb, flag);
211
212 if(size != 2)
213 printk("m32r_cfc: iowrite_word :illigal size %u : %#lx\n",
214 size, port);
215 if(size == 9)
216 printk("m32r_cfc: iowrite_word :outsw \n");
217
218 addr = pcc_port2addr(port, 2);
219 if (!addr) {
220 printk("m32r_cfc:iowrite_word null addr :%#lx\n",port);
221 return;
222 }
223 #if 1
224 if (addr & 1) {
225 printk("m32r_cfc:iowrite_word port addr (%#lx):%#lx\n", port,
226 addr);
227 return;
228 }
229 #endif
230 debug(3, "m32r_cfc: pcc_iowrite_word: addr=%#lx\n", addr);
231
232 spin_lock_irqsave(&pcc_lock, flags);
233 while (nmemb--)
234 writew(*bp++, addr);
235 spin_unlock_irqrestore(&pcc_lock, flags);
236 }
237
238 /*====================================================================*/
239
240 #define IS_REGISTERED 0x2000
241 #define IS_ALIVE 0x8000
242
243 typedef struct pcc_t {
244 char *name;
245 u_short flags;
246 } pcc_t;
247
248 static pcc_t pcc[] = {
249 #if !defined(CONFIG_PLAT_USRV)
250 { "m32r_cfc", 0 }, { "", 0 },
251 #else /* CONFIG_PLAT_USRV */
252 { "m32r_cfc", 0 }, { "m32r_cfc", 0 }, { "m32r_cfc", 0 },
253 { "m32r_cfc", 0 }, { "m32r_cfc", 0 }, { "", 0 },
254 #endif /* CONFIG_PLAT_USRV */
255 };
256
257 static irqreturn_t pcc_interrupt(int, void *, struct pt_regs *);
258
259 /*====================================================================*/
260
261 static struct timer_list poll_timer;
262
263 static unsigned int pcc_get(u_short sock, unsigned int reg)
264 {
265 unsigned int val = inw(reg);
266 debug(3, "m32r_cfc: pcc_get: reg(0x%08x)=0x%04x\n", reg, val);
267 return val;
268 }
269
270
271 static void pcc_set(u_short sock, unsigned int reg, unsigned int data)
272 {
273 outw(data, reg);
274 debug(3, "m32r_cfc: pcc_set: reg(0x%08x)=0x%04x\n", reg, data);
275 }
276
277 /*======================================================================
278
279 See if a card is present, powered up, in IO mode, and already
280 bound to a (non PC Card) Linux driver. We leave these alone.
281
282 We make an exception for cards that seem to be serial devices.
283
284 ======================================================================*/
285
286 static int __init is_alive(u_short sock)
287 {
288 unsigned int stat;
289
290 debug(3, "m32r_cfc: is_alive:\n");
291
292 printk("CF: ");
293 stat = pcc_get(sock, (unsigned int)PLD_CFSTS);
294 if (!stat)
295 printk("No ");
296 printk("Card is detected at socket %d : stat = 0x%08x\n", sock, stat);
297 debug(3, "m32r_cfc: is_alive: sock stat is 0x%04x\n", stat);
298
299 return 0;
300 }
301
302 static void add_pcc_socket(ulong base, int irq, ulong mapaddr, kio_addr_t ioaddr)
303 {
304 pcc_socket_t *t = &socket[pcc_sockets];
305
306 debug(3, "m32r_cfc: add_pcc_socket: base=%#lx, irq=%d, "
307 "mapaddr=%#lx, ioaddr=%08x\n",
308 base, irq, mapaddr, ioaddr);
309
310 /* add sockets */
311 t->ioaddr = ioaddr;
312 t->mapaddr = mapaddr;
313 #if !defined(CONFIG_PLAT_USRV)
314 t->base = 0;
315 t->flags = 0;
316 t->cs_irq1 = irq; // insert irq
317 t->cs_irq2 = irq + 1; // eject irq
318 #else /* CONFIG_PLAT_USRV */
319 t->base = base;
320 t->flags = 0;
321 t->cs_irq1 = 0; // insert irq
322 t->cs_irq2 = 0; // eject irq
323 #endif /* CONFIG_PLAT_USRV */
324
325 if (is_alive(pcc_sockets))
326 t->flags |= IS_ALIVE;
327
328 /* add pcc */
329 #if !defined(CONFIG_PLAT_USRV)
330 request_region((unsigned int)PLD_CFRSTCR, 0x20, "m32r_cfc");
331 #else /* CONFIG_PLAT_USRV */
332 {
333 unsigned int reg_base;
334
335 reg_base = (unsigned int)PLD_CFRSTCR;
336 reg_base |= pcc_sockets << 8;
337 request_region(reg_base, 0x20, "m32r_cfc");
338 }
339 #endif /* CONFIG_PLAT_USRV */
340 printk(KERN_INFO " %s ", pcc[pcc_sockets].name);
341 printk("pcc at 0x%08lx\n", t->base);
342
343 /* Update socket interrupt information, capabilities */
344 t->socket.features |= (SS_CAP_PCCARD | SS_CAP_STATIC_MAP);
345 t->socket.map_size = M32R_PCC_MAPSIZE;
346 t->socket.io_offset = ioaddr; /* use for io access offset */
347 t->socket.irq_mask = 0;
348 #if !defined(CONFIG_PLAT_USRV)
349 t->socket.pci_irq = PLD_IRQ_CFIREQ ; /* card interrupt */
350 #else /* CONFIG_PLAT_USRV */
351 t->socket.pci_irq = PLD_IRQ_CF0 + pcc_sockets;
352 #endif /* CONFIG_PLAT_USRV */
353
354 #ifndef CONFIG_PLAT_USRV
355 /* insert interrupt */
356 request_irq(irq, pcc_interrupt, 0, "m32r_cfc", pcc_interrupt);
357 #ifndef CONFIG_PLAT_MAPPI3
358 /* eject interrupt */
359 request_irq(irq+1, pcc_interrupt, 0, "m32r_cfc", pcc_interrupt);
360 #endif
361 debug(3, "m32r_cfc: enable CFMSK, RDYSEL\n");
362 pcc_set(pcc_sockets, (unsigned int)PLD_CFIMASK, 0x01);
363 #endif /* CONFIG_PLAT_USRV */
364 #if defined(CONFIG_PLAT_M32700UT) || defined(CONFIG_PLAT_USRV) || defined(CONFIG_PLAT_OPSPUT)
365 pcc_set(pcc_sockets, (unsigned int)PLD_CFCR1, 0x0200);
366 #endif
367 pcc_sockets++;
368
369 return;
370 }
371
372
373 /*====================================================================*/
374
375 static irqreturn_t pcc_interrupt(int irq, void *dev, struct pt_regs *regs)
376 {
377 int i;
378 u_int events = 0;
379 int handled = 0;
380
381 debug(3, "m32r_cfc: pcc_interrupt: irq=%d, dev=%p, regs=%p\n",
382 irq, dev, regs);
383 for (i = 0; i < pcc_sockets; i++) {
384 if (socket[i].cs_irq1 != irq && socket[i].cs_irq2 != irq)
385 continue;
386
387 handled = 1;
388 debug(3, "m32r_cfc: pcc_interrupt: socket %d irq 0x%02x ",
389 i, irq);
390 events |= SS_DETECT; /* insert or eject */
391 if (events)
392 pcmcia_parse_events(&socket[i].socket, events);
393 }
394 debug(3, "m32r_cfc: pcc_interrupt: done\n");
395
396 return IRQ_RETVAL(handled);
397 } /* pcc_interrupt */
398
399 static void pcc_interrupt_wrapper(u_long data)
400 {
401 debug(3, "m32r_cfc: pcc_interrupt_wrapper:\n");
402 pcc_interrupt(0, NULL, NULL);
403 init_timer(&poll_timer);
404 poll_timer.expires = jiffies + poll_interval;
405 add_timer(&poll_timer);
406 }
407
408 /*====================================================================*/
409
410 static int _pcc_get_status(u_short sock, u_int *value)
411 {
412 u_int status;
413
414 debug(3, "m32r_cfc: _pcc_get_status:\n");
415 status = pcc_get(sock, (unsigned int)PLD_CFSTS);
416 *value = (status) ? SS_DETECT : 0;
417 debug(3, "m32r_cfc: _pcc_get_status: status=0x%08x\n", status);
418
419 #if defined(CONFIG_PLAT_M32700UT) || defined(CONFIG_PLAT_USRV) || defined(CONFIG_PLAT_OPSPUT)
420 if ( status ) {
421 /* enable CF power */
422 status = inw((unsigned int)PLD_CPCR);
423 if (!(status & PLD_CPCR_CF)) {
424 debug(3, "m32r_cfc: _pcc_get_status: "
425 "power on (CPCR=0x%08x)\n", status);
426 status |= PLD_CPCR_CF;
427 outw(status, (unsigned int)PLD_CPCR);
428 udelay(100);
429 }
430 *value |= SS_POWERON;
431
432 pcc_set(sock, (unsigned int)PLD_CFBUFCR,0);/* enable buffer */
433 udelay(100);
434
435 *value |= SS_READY; /* always ready */
436 *value |= SS_3VCARD;
437 } else {
438 /* disable CF power */
439 status = inw((unsigned int)PLD_CPCR);
440 status &= ~PLD_CPCR_CF;
441 outw(status, (unsigned int)PLD_CPCR);
442 udelay(100);
443 debug(3, "m32r_cfc: _pcc_get_status: "
444 "power off (CPCR=0x%08x)\n", status);
445 }
446 #elif defined(CONFIG_PLAT_MAPPI2) || defined(CONFIG_PLAT_MAPPI3)
447 if ( status ) {
448 status = pcc_get(sock, (unsigned int)PLD_CPCR);
449 if (status == 0) { /* power off */
450 pcc_set(sock, (unsigned int)PLD_CPCR, 1);
451 pcc_set(sock, (unsigned int)PLD_CFBUFCR,0); /* force buffer off for ZA-36 */
452 udelay(50);
453 }
454 *value |= SS_POWERON;
455
456 pcc_set(sock, (unsigned int)PLD_CFBUFCR,0);
457 udelay(50);
458 pcc_set(sock, (unsigned int)PLD_CFRSTCR, 0x0101);
459 udelay(25); /* for IDE reset */
460 pcc_set(sock, (unsigned int)PLD_CFRSTCR, 0x0100);
461 mdelay(2); /* for IDE reset */
462
463 *value |= SS_READY;
464 *value |= SS_3VCARD;
465 } else {
466 /* disable CF power */
467 pcc_set(sock, (unsigned int)PLD_CPCR, 0);
468 udelay(100);
469 debug(3, "m32r_cfc: _pcc_get_status: "
470 "power off (CPCR=0x%08x)\n", status);
471 }
472 #else
473 #error no platform configuration
474 #endif
475 debug(3, "m32r_cfc: _pcc_get_status: GetStatus(%d) = %#4.4x\n",
476 sock, *value);
477 return 0;
478 } /* _get_status */
479
480 /*====================================================================*/
481
482 static int _pcc_set_socket(u_short sock, socket_state_t *state)
483 {
484 debug(3, "m32r_cfc: SetSocket(%d, flags %#3.3x, Vcc %d, Vpp %d, "
485 "io_irq %d, csc_mask %#2.2x)\n", sock, state->flags,
486 state->Vcc, state->Vpp, state->io_irq, state->csc_mask);
487
488 #if defined(CONFIG_PLAT_M32700UT) || defined(CONFIG_PLAT_USRV) || defined(CONFIG_PLAT_OPSPUT) || defined(CONFIG_PLAT_MAPPI2) || defined(CONFIG_PLAT_MAPPI3)
489 if (state->Vcc) {
490 if ((state->Vcc != 50) && (state->Vcc != 33))
491 return -EINVAL;
492 /* accept 5V and 3.3V */
493 }
494 #endif
495 if (state->flags & SS_RESET) {
496 debug(3, ":RESET\n");
497 pcc_set(sock,(unsigned int)PLD_CFRSTCR,0x101);
498 }else{
499 pcc_set(sock,(unsigned int)PLD_CFRSTCR,0x100);
500 }
501 if (state->flags & SS_OUTPUT_ENA){
502 debug(3, ":OUTPUT_ENA\n");
503 /* bit clear */
504 pcc_set(sock,(unsigned int)PLD_CFBUFCR,0);
505 } else {
506 pcc_set(sock,(unsigned int)PLD_CFBUFCR,1);
507 }
508
509 #ifdef DEBUG
510 if(state->flags & SS_IOCARD){
511 debug(3, ":IOCARD");
512 }
513 if (state->flags & SS_PWR_AUTO) {
514 debug(3, ":PWR_AUTO");
515 }
516 if (state->csc_mask & SS_DETECT)
517 debug(3, ":csc-SS_DETECT");
518 if (state->flags & SS_IOCARD) {
519 if (state->csc_mask & SS_STSCHG)
520 debug(3, ":STSCHG");
521 } else {
522 if (state->csc_mask & SS_BATDEAD)
523 debug(3, ":BATDEAD");
524 if (state->csc_mask & SS_BATWARN)
525 debug(3, ":BATWARN");
526 if (state->csc_mask & SS_READY)
527 debug(3, ":READY");
528 }
529 debug(3, "\n");
530 #endif
531 return 0;
532 } /* _set_socket */
533
534 /*====================================================================*/
535
536 static int _pcc_set_io_map(u_short sock, struct pccard_io_map *io)
537 {
538 u_char map;
539
540 debug(3, "m32r_cfc: SetIOMap(%d, %d, %#2.2x, %d ns, "
541 "%#lx-%#lx)\n", sock, io->map, io->flags,
542 io->speed, io->start, io->stop);
543 map = io->map;
544
545 return 0;
546 } /* _set_io_map */
547
548 /*====================================================================*/
549
550 static int _pcc_set_mem_map(u_short sock, struct pccard_mem_map *mem)
551 {
552
553 u_char map = mem->map;
554 u_long addr;
555 pcc_socket_t *t = &socket[sock];
556
557 debug(3, "m32r_cfc: SetMemMap(%d, %d, %#2.2x, %d ns, "
558 "%#lx, %#x)\n", sock, map, mem->flags,
559 mem->speed, mem->static_start, mem->card_start);
560
561 /*
562 * sanity check
563 */
564 if ((map > MAX_WIN) || (mem->card_start > 0x3ffffff)){
565 return -EINVAL;
566 }
567
568 /*
569 * de-activate
570 */
571 if ((mem->flags & MAP_ACTIVE) == 0) {
572 t->current_space = as_none;
573 return 0;
574 }
575
576 /*
577 * Set mode
578 */
579 if (mem->flags & MAP_ATTRIB) {
580 t->current_space = as_attr;
581 } else {
582 t->current_space = as_comm;
583 }
584
585 /*
586 * Set address
587 */
588 addr = t->mapaddr + (mem->card_start & M32R_PCC_MAPMASK);
589 mem->static_start = addr + mem->card_start;
590
591 return 0;
592
593 } /* _set_mem_map */
594
595 #if 0 /* driver model ordering issue */
596 /*======================================================================
597
598 Routines for accessing socket information and register dumps via
599 /proc/bus/pccard/...
600
601 ======================================================================*/
602
603 static ssize_t show_info(struct class_device *class_dev, char *buf)
604 {
605 pcc_socket_t *s = container_of(class_dev, struct pcc_socket,
606 socket.dev);
607
608 return sprintf(buf, "type: %s\nbase addr: 0x%08lx\n",
609 pcc[s->type].name, s->base);
610 }
611
612 static ssize_t show_exca(struct class_device *class_dev, char *buf)
613 {
614 /* FIXME */
615
616 return 0;
617 }
618
619 static CLASS_DEVICE_ATTR(info, S_IRUGO, show_info, NULL);
620 static CLASS_DEVICE_ATTR(exca, S_IRUGO, show_exca, NULL);
621 #endif
622
623 /*====================================================================*/
624
625 /* this is horribly ugly... proper locking needs to be done here at
626 * some time... */
627 #define LOCKED(x) do { \
628 int retval; \
629 unsigned long flags; \
630 spin_lock_irqsave(&pcc_lock, flags); \
631 retval = x; \
632 spin_unlock_irqrestore(&pcc_lock, flags); \
633 return retval; \
634 } while (0)
635
636
637 static int pcc_get_status(struct pcmcia_socket *s, u_int *value)
638 {
639 unsigned int sock = container_of(s, struct pcc_socket, socket)->number;
640
641 if (socket[sock].flags & IS_ALIVE) {
642 debug(3, "m32r_cfc: pcc_get_status: sock(%d) -EINVAL\n", sock);
643 *value = 0;
644 return -EINVAL;
645 }
646 debug(3, "m32r_cfc: pcc_get_status: sock(%d)\n", sock);
647 LOCKED(_pcc_get_status(sock, value));
648 }
649
650 static int pcc_set_socket(struct pcmcia_socket *s, socket_state_t *state)
651 {
652 unsigned int sock = container_of(s, struct pcc_socket, socket)->number;
653
654 if (socket[sock].flags & IS_ALIVE) {
655 debug(3, "m32r_cfc: pcc_set_socket: sock(%d) -EINVAL\n", sock);
656 return -EINVAL;
657 }
658 debug(3, "m32r_cfc: pcc_set_socket: sock(%d)\n", sock);
659 LOCKED(_pcc_set_socket(sock, state));
660 }
661
662 static int pcc_set_io_map(struct pcmcia_socket *s, struct pccard_io_map *io)
663 {
664 unsigned int sock = container_of(s, struct pcc_socket, socket)->number;
665
666 if (socket[sock].flags & IS_ALIVE) {
667 debug(3, "m32r_cfc: pcc_set_io_map: sock(%d) -EINVAL\n", sock);
668 return -EINVAL;
669 }
670 debug(3, "m32r_cfc: pcc_set_io_map: sock(%d)\n", sock);
671 LOCKED(_pcc_set_io_map(sock, io));
672 }
673
674 static int pcc_set_mem_map(struct pcmcia_socket *s, struct pccard_mem_map *mem)
675 {
676 unsigned int sock = container_of(s, struct pcc_socket, socket)->number;
677
678 if (socket[sock].flags & IS_ALIVE) {
679 debug(3, "m32r_cfc: pcc_set_mem_map: sock(%d) -EINVAL\n", sock);
680 return -EINVAL;
681 }
682 debug(3, "m32r_cfc: pcc_set_mem_map: sock(%d)\n", sock);
683 LOCKED(_pcc_set_mem_map(sock, mem));
684 }
685
686 static int pcc_init(struct pcmcia_socket *s)
687 {
688 debug(3, "m32r_cfc: pcc_init()\n");
689 return 0;
690 }
691
692 static struct pccard_operations pcc_operations = {
693 .init = pcc_init,
694 .get_status = pcc_get_status,
695 .set_socket = pcc_set_socket,
696 .set_io_map = pcc_set_io_map,
697 .set_mem_map = pcc_set_mem_map,
698 };
699
700 /*====================================================================*/
701
702 static struct device_driver pcc_driver = {
703 .name = "cfc",
704 .bus = &platform_bus_type,
705 .suspend = pcmcia_socket_dev_suspend,
706 .resume = pcmcia_socket_dev_resume,
707 };
708
709 static struct platform_device pcc_device = {
710 .name = "cfc",
711 .id = 0,
712 };
713
714 /*====================================================================*/
715
716 static int __init init_m32r_pcc(void)
717 {
718 int i, ret;
719
720 ret = driver_register(&pcc_driver);
721 if (ret)
722 return ret;
723
724 ret = platform_device_register(&pcc_device);
725 if (ret){
726 driver_unregister(&pcc_driver);
727 return ret;
728 }
729
730 #if defined(CONFIG_PLAT_MAPPI2) || defined(CONFIG_PLAT_MAPPI3)
731 pcc_set(0, (unsigned int)PLD_CFCR0, 0x0f0f);
732 pcc_set(0, (unsigned int)PLD_CFCR1, 0x0200);
733 #endif
734
735 pcc_sockets = 0;
736
737 #if !defined(CONFIG_PLAT_USRV)
738 add_pcc_socket(M32R_PCC0_BASE, PLD_IRQ_CFC_INSERT, CFC_ATTR_MAPBASE,
739 CFC_IOPORT_BASE);
740 #else /* CONFIG_PLAT_USRV */
741 {
742 ulong base, mapaddr;
743 kio_addr_t ioaddr;
744
745 for (i = 0 ; i < M32R_MAX_PCC ; i++) {
746 base = (ulong)PLD_CFRSTCR;
747 base = base | (i << 8);
748 ioaddr = (i + 1) << 12;
749 mapaddr = CFC_ATTR_MAPBASE | (i << 20);
750 add_pcc_socket(base, 0, mapaddr, ioaddr);
751 }
752 }
753 #endif /* CONFIG_PLAT_USRV */
754
755 if (pcc_sockets == 0) {
756 printk("socket is not found.\n");
757 platform_device_unregister(&pcc_device);
758 driver_unregister(&pcc_driver);
759 return -ENODEV;
760 }
761
762 /* Set up interrupt handler(s) */
763
764 for (i = 0 ; i < pcc_sockets ; i++) {
765 socket[i].socket.dev.dev = &pcc_device.dev;
766 socket[i].socket.ops = &pcc_operations;
767 socket[i].socket.resource_ops = &pccard_nonstatic_ops;
768 socket[i].socket.owner = THIS_MODULE;
769 socket[i].number = i;
770 ret = pcmcia_register_socket(&socket[i].socket);
771 if (!ret)
772 socket[i].flags |= IS_REGISTERED;
773
774 #if 0 /* driver model ordering issue */
775 class_device_create_file(&socket[i].socket.dev,
776 &class_device_attr_info);
777 class_device_create_file(&socket[i].socket.dev,
778 &class_device_attr_exca);
779 #endif
780 }
781
782 /* Finally, schedule a polling interrupt */
783 if (poll_interval != 0) {
784 poll_timer.function = pcc_interrupt_wrapper;
785 poll_timer.data = 0;
786 init_timer(&poll_timer);
787 poll_timer.expires = jiffies + poll_interval;
788 add_timer(&poll_timer);
789 }
790
791 return 0;
792 } /* init_m32r_pcc */
793
794 static void __exit exit_m32r_pcc(void)
795 {
796 int i;
797
798 for (i = 0; i < pcc_sockets; i++)
799 if (socket[i].flags & IS_REGISTERED)
800 pcmcia_unregister_socket(&socket[i].socket);
801
802 platform_device_unregister(&pcc_device);
803 if (poll_interval != 0)
804 del_timer_sync(&poll_timer);
805
806 driver_unregister(&pcc_driver);
807 } /* exit_m32r_pcc */
808
809 module_init(init_m32r_pcc);
810 module_exit(exit_m32r_pcc);
811 MODULE_LICENSE("Dual MPL/GPL");
812 /*====================================================================*/
USB Experimental Work