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net/mlx5e: Fix wrong indications in DIM due to counter wraparound
[linux/fpc-iii.git] / drivers / pcmcia / m32r_cfc.c
blob70b089430fcc45ace3f3698d3282c7cae427303c
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/ioport.h>
20 #include <linux/delay.h>
21 #include <linux/workqueue.h>
22 #include <linux/interrupt.h>
23 #include <linux/platform_device.h>
24 #include <linux/bitops.h>
25 #include <asm/irq.h>
26 #include <asm/io.h>
27
28 #include <pcmcia/ss.h>
29
30 #undef MAX_IO_WIN /* FIXME */
31 #define MAX_IO_WIN 1
32 #undef MAX_WIN /* FIXME */
33 #define MAX_WIN 1
34
35 #include "m32r_cfc.h"
36
37 /* Poll status interval -- 0 means default to interrupt */
38 static int poll_interval = 0;
39
40 typedef enum pcc_space { as_none = 0, as_comm, as_attr, as_io } pcc_as_t;
41
42 typedef struct pcc_socket {
43 u_short type, flags;
44 struct pcmcia_socket socket;
45 unsigned int number;
46 unsigned int ioaddr;
47 u_long mapaddr;
48 u_long base; /* PCC register base */
49 u_char cs_irq1, cs_irq2, intr;
50 pccard_io_map io_map[MAX_IO_WIN];
51 pccard_mem_map mem_map[MAX_WIN];
52 u_char io_win;
53 u_char mem_win;
54 pcc_as_t current_space;
55 u_char last_iodbex;
56 #ifdef CONFIG_PROC_FS
57 struct proc_dir_entry *proc;
58 #endif
59 } pcc_socket_t;
60
61 static int pcc_sockets = 0;
62 static pcc_socket_t socket[M32R_MAX_PCC] = {
63 { 0, }, /* ... */
64 };
65
66 /*====================================================================*/
67
68 static unsigned int pcc_get(u_short, unsigned int);
69 static void pcc_set(u_short, unsigned int , unsigned int );
70
71 static DEFINE_SPINLOCK(pcc_lock);
72
73 #if !defined(CONFIG_PLAT_USRV)
74 static inline u_long pcc_port2addr(unsigned long port, int size) {
75 u_long addr = 0;
76 u_long odd;
77
78 if (size == 1) { /* byte access */
79 odd = (port&1) << 11;
80 port -= port & 1;
81 addr = CFC_IO_MAPBASE_BYTE - CFC_IOPORT_BASE + odd + port;
82 } else if (size == 2)
83 addr = CFC_IO_MAPBASE_WORD - CFC_IOPORT_BASE + port;
84
85 return addr;
86 }
87 #else /* CONFIG_PLAT_USRV */
88 static inline u_long pcc_port2addr(unsigned long port, int size) {
89 u_long odd;
90 u_long addr = ((port - CFC_IOPORT_BASE) & 0xf000) << 8;
91
92 if (size == 1) { /* byte access */
93 odd = port & 1;
94 port -= odd;
95 odd <<= 11;
96 addr = (addr | CFC_IO_MAPBASE_BYTE) + odd + (port & 0xfff);
97 } else if (size == 2) /* word access */
98 addr = (addr | CFC_IO_MAPBASE_WORD) + (port & 0xfff);
99
100 return addr;
101 }
102 #endif /* CONFIG_PLAT_USRV */
103
104 void pcc_ioread_byte(int sock, unsigned long port, void *buf, size_t size,
105 size_t nmemb, int flag)
106 {
107 u_long addr;
108 unsigned char *bp = (unsigned char *)buf;
109 unsigned long flags;
110
111 pr_debug("m32r_cfc: pcc_ioread_byte: sock=%d, port=%#lx, buf=%p, "
112 "size=%u, nmemb=%d, flag=%d\n",
113 sock, port, buf, size, nmemb, flag);
114
115 addr = pcc_port2addr(port, 1);
116 if (!addr) {
117 printk("m32r_cfc:ioread_byte null port :%#lx\n",port);
118 return;
119 }
120 pr_debug("m32r_cfc: pcc_ioread_byte: addr=%#lx\n", addr);
121
122 spin_lock_irqsave(&pcc_lock, flags);
123 /* read Byte */
124 while (nmemb--)
125 *bp++ = readb(addr);
126 spin_unlock_irqrestore(&pcc_lock, flags);
127 }
128
129 void pcc_ioread_word(int sock, unsigned long port, void *buf, size_t size,
130 size_t nmemb, int flag)
131 {
132 u_long addr;
133 unsigned short *bp = (unsigned short *)buf;
134 unsigned long flags;
135
136 pr_debug("m32r_cfc: pcc_ioread_word: sock=%d, port=%#lx, "
137 "buf=%p, size=%u, nmemb=%d, flag=%d\n",
138 sock, port, buf, size, nmemb, flag);
139
140 if (size != 2)
141 printk("m32r_cfc: ioread_word :illigal size %u : %#lx\n", size,
142 port);
143 if (size == 9)
144 printk("m32r_cfc: ioread_word :insw \n");
145
146 addr = pcc_port2addr(port, 2);
147 if (!addr) {
148 printk("m32r_cfc:ioread_word null port :%#lx\n",port);
149 return;
150 }
151 pr_debug("m32r_cfc: pcc_ioread_word: addr=%#lx\n", addr);
152
153 spin_lock_irqsave(&pcc_lock, flags);
154 /* read Word */
155 while (nmemb--)
156 *bp++ = readw(addr);
157 spin_unlock_irqrestore(&pcc_lock, flags);
158 }
159
160 void pcc_iowrite_byte(int sock, unsigned long port, void *buf, size_t size,
161 size_t nmemb, int flag)
162 {
163 u_long addr;
164 unsigned char *bp = (unsigned char *)buf;
165 unsigned long flags;
166
167 pr_debug("m32r_cfc: pcc_iowrite_byte: sock=%d, port=%#lx, "
168 "buf=%p, size=%u, nmemb=%d, flag=%d\n",
169 sock, port, buf, size, nmemb, flag);
170
171 /* write Byte */
172 addr = pcc_port2addr(port, 1);
173 if (!addr) {
174 printk("m32r_cfc:iowrite_byte null port:%#lx\n",port);
175 return;
176 }
177 pr_debug("m32r_cfc: pcc_iowrite_byte: addr=%#lx\n", addr);
178
179 spin_lock_irqsave(&pcc_lock, flags);
180 while (nmemb--)
181 writeb(*bp++, addr);
182 spin_unlock_irqrestore(&pcc_lock, flags);
183 }
184
185 void pcc_iowrite_word(int sock, unsigned long port, void *buf, size_t size,
186 size_t nmemb, int flag)
187 {
188 u_long addr;
189 unsigned short *bp = (unsigned short *)buf;
190 unsigned long flags;
191
192 pr_debug("m32r_cfc: pcc_iowrite_word: sock=%d, port=%#lx, "
193 "buf=%p, size=%u, nmemb=%d, flag=%d\n",
194 sock, port, buf, size, nmemb, flag);
195
196 if(size != 2)
197 printk("m32r_cfc: iowrite_word :illigal size %u : %#lx\n",
198 size, port);
199 if(size == 9)
200 printk("m32r_cfc: iowrite_word :outsw \n");
201
202 addr = pcc_port2addr(port, 2);
203 if (!addr) {
204 printk("m32r_cfc:iowrite_word null addr :%#lx\n",port);
205 return;
206 }
207 #if 1
208 if (addr & 1) {
209 printk("m32r_cfc:iowrite_word port addr (%#lx):%#lx\n", port,
210 addr);
211 return;
212 }
213 #endif
214 pr_debug("m32r_cfc: pcc_iowrite_word: addr=%#lx\n", addr);
215
216 spin_lock_irqsave(&pcc_lock, flags);
217 while (nmemb--)
218 writew(*bp++, addr);
219 spin_unlock_irqrestore(&pcc_lock, flags);
220 }
221
222 /*====================================================================*/
223
224 #define IS_REGISTERED 0x2000
225 #define IS_ALIVE 0x8000
226
227 typedef struct pcc_t {
228 char *name;
229 u_short flags;
230 } pcc_t;
231
232 static pcc_t pcc[] = {
233 #if !defined(CONFIG_PLAT_USRV)
234 { "m32r_cfc", 0 }, { "", 0 },
235 #else /* CONFIG_PLAT_USRV */
236 { "m32r_cfc", 0 }, { "m32r_cfc", 0 }, { "m32r_cfc", 0 },
237 { "m32r_cfc", 0 }, { "m32r_cfc", 0 }, { "", 0 },
238 #endif /* CONFIG_PLAT_USRV */
239 };
240
241 static irqreturn_t pcc_interrupt(int, void *);
242
243 /*====================================================================*/
244
245 static struct timer_list poll_timer;
246
247 static unsigned int pcc_get(u_short sock, unsigned int reg)
248 {
249 unsigned int val = inw(reg);
250 pr_debug("m32r_cfc: pcc_get: reg(0x%08x)=0x%04x\n", reg, val);
251 return val;
252 }
253
254
255 static void pcc_set(u_short sock, unsigned int reg, unsigned int data)
256 {
257 outw(data, reg);
258 pr_debug("m32r_cfc: pcc_set: reg(0x%08x)=0x%04x\n", reg, data);
259 }
260
261 /*======================================================================
262
263 See if a card is present, powered up, in IO mode, and already
264 bound to a (non PC Card) Linux driver. We leave these alone.
265
266 We make an exception for cards that seem to be serial devices.
267
268 ======================================================================*/
269
270 static int __init is_alive(u_short sock)
271 {
272 unsigned int stat;
273
274 pr_debug("m32r_cfc: is_alive:\n");
275
276 printk("CF: ");
277 stat = pcc_get(sock, (unsigned int)PLD_CFSTS);
278 if (!stat)
279 printk("No ");
280 printk("Card is detected at socket %d : stat = 0x%08x\n", sock, stat);
281 pr_debug("m32r_cfc: is_alive: sock stat is 0x%04x\n", stat);
282
283 return 0;
284 }
285
286 static void add_pcc_socket(ulong base, int irq, ulong mapaddr,
287 unsigned int ioaddr)
288 {
289 pcc_socket_t *t = &socket[pcc_sockets];
290
291 pr_debug("m32r_cfc: add_pcc_socket: base=%#lx, irq=%d, "
292 "mapaddr=%#lx, ioaddr=%08x\n",
293 base, irq, mapaddr, ioaddr);
294
295 /* add sockets */
296 t->ioaddr = ioaddr;
297 t->mapaddr = mapaddr;
298 #if !defined(CONFIG_PLAT_USRV)
299 t->base = 0;
300 t->flags = 0;
301 t->cs_irq1 = irq; // insert irq
302 t->cs_irq2 = irq + 1; // eject irq
303 #else /* CONFIG_PLAT_USRV */
304 t->base = base;
305 t->flags = 0;
306 t->cs_irq1 = 0; // insert irq
307 t->cs_irq2 = 0; // eject irq
308 #endif /* CONFIG_PLAT_USRV */
309
310 if (is_alive(pcc_sockets))
311 t->flags |= IS_ALIVE;
312
313 /* add pcc */
314 #if !defined(CONFIG_PLAT_USRV)
315 request_region((unsigned int)PLD_CFRSTCR, 0x20, "m32r_cfc");
316 #else /* CONFIG_PLAT_USRV */
317 {
318 unsigned int reg_base;
319
320 reg_base = (unsigned int)PLD_CFRSTCR;
321 reg_base |= pcc_sockets << 8;
322 request_region(reg_base, 0x20, "m32r_cfc");
323 }
324 #endif /* CONFIG_PLAT_USRV */
325 printk(KERN_INFO " %s ", pcc[pcc_sockets].name);
326 printk("pcc at 0x%08lx\n", t->base);
327
328 /* Update socket interrupt information, capabilities */
329 t->socket.features |= (SS_CAP_PCCARD | SS_CAP_STATIC_MAP);
330 t->socket.map_size = M32R_PCC_MAPSIZE;
331 t->socket.io_offset = ioaddr; /* use for io access offset */
332 t->socket.irq_mask = 0;
333 #if !defined(CONFIG_PLAT_USRV)
334 t->socket.pci_irq = PLD_IRQ_CFIREQ ; /* card interrupt */
335 #else /* CONFIG_PLAT_USRV */
336 t->socket.pci_irq = PLD_IRQ_CF0 + pcc_sockets;
337 #endif /* CONFIG_PLAT_USRV */
338
339 #ifndef CONFIG_PLAT_USRV
340 /* insert interrupt */
341 request_irq(irq, pcc_interrupt, 0, "m32r_cfc", pcc_interrupt);
342 #ifndef CONFIG_PLAT_MAPPI3
343 /* eject interrupt */
344 request_irq(irq+1, pcc_interrupt, 0, "m32r_cfc", pcc_interrupt);
345 #endif
346 pr_debug("m32r_cfc: enable CFMSK, RDYSEL\n");
347 pcc_set(pcc_sockets, (unsigned int)PLD_CFIMASK, 0x01);
348 #endif /* CONFIG_PLAT_USRV */
349 #if defined(CONFIG_PLAT_M32700UT) || defined(CONFIG_PLAT_USRV) || defined(CONFIG_PLAT_OPSPUT)
350 pcc_set(pcc_sockets, (unsigned int)PLD_CFCR1, 0x0200);
351 #endif
352 pcc_sockets++;
353
354 return;
355 }
356
357
358 /*====================================================================*/
359
360 static irqreturn_t pcc_interrupt(int irq, void *dev)
361 {
362 int i;
363 u_int events = 0;
364 int handled = 0;
365
366 pr_debug("m32r_cfc: pcc_interrupt: irq=%d, dev=%p\n", irq, dev);
367 for (i = 0; i < pcc_sockets; i++) {
368 if (socket[i].cs_irq1 != irq && socket[i].cs_irq2 != irq)
369 continue;
370
371 handled = 1;
372 pr_debug("m32r_cfc: pcc_interrupt: socket %d irq 0x%02x ",
373 i, irq);
374 events |= SS_DETECT; /* insert or eject */
375 if (events)
376 pcmcia_parse_events(&socket[i].socket, events);
377 }
378 pr_debug("m32r_cfc: pcc_interrupt: done\n");
379
380 return IRQ_RETVAL(handled);
381 } /* pcc_interrupt */
382
383 static void pcc_interrupt_wrapper(u_long data)
384 {
385 pr_debug("m32r_cfc: pcc_interrupt_wrapper:\n");
386 pcc_interrupt(0, NULL);
387 init_timer(&poll_timer);
388 poll_timer.expires = jiffies + poll_interval;
389 add_timer(&poll_timer);
390 }
391
392 /*====================================================================*/
393
394 static int _pcc_get_status(u_short sock, u_int *value)
395 {
396 u_int status;
397
398 pr_debug("m32r_cfc: _pcc_get_status:\n");
399 status = pcc_get(sock, (unsigned int)PLD_CFSTS);
400 *value = (status) ? SS_DETECT : 0;
401 pr_debug("m32r_cfc: _pcc_get_status: status=0x%08x\n", status);
402
403 #if defined(CONFIG_PLAT_M32700UT) || defined(CONFIG_PLAT_USRV) || defined(CONFIG_PLAT_OPSPUT)
404 if ( status ) {
405 /* enable CF power */
406 status = inw((unsigned int)PLD_CPCR);
407 if (!(status & PLD_CPCR_CF)) {
408 pr_debug("m32r_cfc: _pcc_get_status: "
409 "power on (CPCR=0x%08x)\n", status);
410 status |= PLD_CPCR_CF;
411 outw(status, (unsigned int)PLD_CPCR);
412 udelay(100);
413 }
414 *value |= SS_POWERON;
415
416 pcc_set(sock, (unsigned int)PLD_CFBUFCR,0);/* enable buffer */
417 udelay(100);
418
419 *value |= SS_READY; /* always ready */
420 *value |= SS_3VCARD;
421 } else {
422 /* disable CF power */
423 status = inw((unsigned int)PLD_CPCR);
424 status &= ~PLD_CPCR_CF;
425 outw(status, (unsigned int)PLD_CPCR);
426 udelay(100);
427 pr_debug("m32r_cfc: _pcc_get_status: "
428 "power off (CPCR=0x%08x)\n", status);
429 }
430 #elif defined(CONFIG_PLAT_MAPPI2) || defined(CONFIG_PLAT_MAPPI3)
431 if ( status ) {
432 status = pcc_get(sock, (unsigned int)PLD_CPCR);
433 if (status == 0) { /* power off */
434 pcc_set(sock, (unsigned int)PLD_CPCR, 1);
435 pcc_set(sock, (unsigned int)PLD_CFBUFCR,0); /* force buffer off for ZA-36 */
436 udelay(50);
437 }
438 *value |= SS_POWERON;
439
440 pcc_set(sock, (unsigned int)PLD_CFBUFCR,0);
441 udelay(50);
442 pcc_set(sock, (unsigned int)PLD_CFRSTCR, 0x0101);
443 udelay(25); /* for IDE reset */
444 pcc_set(sock, (unsigned int)PLD_CFRSTCR, 0x0100);
445 mdelay(2); /* for IDE reset */
446
447 *value |= SS_READY;
448 *value |= SS_3VCARD;
449 } else {
450 /* disable CF power */
451 pcc_set(sock, (unsigned int)PLD_CPCR, 0);
452 udelay(100);
453 pr_debug("m32r_cfc: _pcc_get_status: "
454 "power off (CPCR=0x%08x)\n", status);
455 }
456 #else
457 #error no platform configuration
458 #endif
459 pr_debug("m32r_cfc: _pcc_get_status: GetStatus(%d) = %#4.4x\n",
460 sock, *value);
461 return 0;
462 } /* _get_status */
463
464 /*====================================================================*/
465
466 static int _pcc_set_socket(u_short sock, socket_state_t *state)
467 {
468 pr_debug("m32r_cfc: SetSocket(%d, flags %#3.3x, Vcc %d, Vpp %d, "
469 "io_irq %d, csc_mask %#2.2x)\n", sock, state->flags,
470 state->Vcc, state->Vpp, state->io_irq, state->csc_mask);
471
472 #if defined(CONFIG_PLAT_M32700UT) || defined(CONFIG_PLAT_USRV) || defined(CONFIG_PLAT_OPSPUT) || defined(CONFIG_PLAT_MAPPI2) || defined(CONFIG_PLAT_MAPPI3)
473 if (state->Vcc) {
474 if ((state->Vcc != 50) && (state->Vcc != 33))
475 return -EINVAL;
476 /* accept 5V and 3.3V */
477 }
478 #endif
479 if (state->flags & SS_RESET) {
480 pr_debug(":RESET\n");
481 pcc_set(sock,(unsigned int)PLD_CFRSTCR,0x101);
482 }else{
483 pcc_set(sock,(unsigned int)PLD_CFRSTCR,0x100);
484 }
485 if (state->flags & SS_OUTPUT_ENA){
486 pr_debug(":OUTPUT_ENA\n");
487 /* bit clear */
488 pcc_set(sock,(unsigned int)PLD_CFBUFCR,0);
489 } else {
490 pcc_set(sock,(unsigned int)PLD_CFBUFCR,1);
491 }
492
493 if(state->flags & SS_IOCARD){
494 pr_debug(":IOCARD");
495 }
496 if (state->flags & SS_PWR_AUTO) {
497 pr_debug(":PWR_AUTO");
498 }
499 if (state->csc_mask & SS_DETECT)
500 pr_debug(":csc-SS_DETECT");
501 if (state->flags & SS_IOCARD) {
502 if (state->csc_mask & SS_STSCHG)
503 pr_debug(":STSCHG");
504 } else {
505 if (state->csc_mask & SS_BATDEAD)
506 pr_debug(":BATDEAD");
507 if (state->csc_mask & SS_BATWARN)
508 pr_debug(":BATWARN");
509 if (state->csc_mask & SS_READY)
510 pr_debug(":READY");
511 }
512 pr_debug("\n");
513 return 0;
514 } /* _set_socket */
515
516 /*====================================================================*/
517
518 static int _pcc_set_io_map(u_short sock, struct pccard_io_map *io)
519 {
520 u_char map;
521
522 pr_debug("m32r_cfc: SetIOMap(%d, %d, %#2.2x, %d ns, "
523 "%#llx-%#llx)\n", sock, io->map, io->flags,
524 io->speed, (unsigned long long)io->start,
525 (unsigned long long)io->stop);
526 map = io->map;
527
528 return 0;
529 } /* _set_io_map */
530
531 /*====================================================================*/
532
533 static int _pcc_set_mem_map(u_short sock, struct pccard_mem_map *mem)
534 {
535
536 u_char map = mem->map;
537 u_long addr;
538 pcc_socket_t *t = &socket[sock];
539
540 pr_debug("m32r_cfc: SetMemMap(%d, %d, %#2.2x, %d ns, "
541 "%#llx, %#x)\n", sock, map, mem->flags,
542 mem->speed, (unsigned long long)mem->static_start,
543 mem->card_start);
544
545 /*
546 * sanity check
547 */
548 if ((map > MAX_WIN) || (mem->card_start > 0x3ffffff)){
549 return -EINVAL;
550 }
551
552 /*
553 * de-activate
554 */
555 if ((mem->flags & MAP_ACTIVE) == 0) {
556 t->current_space = as_none;
557 return 0;
558 }
559
560 /*
561 * Set mode
562 */
563 if (mem->flags & MAP_ATTRIB) {
564 t->current_space = as_attr;
565 } else {
566 t->current_space = as_comm;
567 }
568
569 /*
570 * Set address
571 */
572 addr = t->mapaddr + (mem->card_start & M32R_PCC_MAPMASK);
573 mem->static_start = addr + mem->card_start;
574
575 return 0;
576
577 } /* _set_mem_map */
578
579 #if 0 /* driver model ordering issue */
580 /*======================================================================
581
582 Routines for accessing socket information and register dumps via
583 /proc/bus/pccard/...
584
585 ======================================================================*/
586
587 static ssize_t show_info(struct class_device *class_dev, char *buf)
588 {
589 pcc_socket_t *s = container_of(class_dev, struct pcc_socket,
590 socket.dev);
591
592 return sprintf(buf, "type: %s\nbase addr: 0x%08lx\n",
593 pcc[s->type].name, s->base);
594 }
595
596 static ssize_t show_exca(struct class_device *class_dev, char *buf)
597 {
598 /* FIXME */
599
600 return 0;
601 }
602
603 static CLASS_DEVICE_ATTR(info, S_IRUGO, show_info, NULL);
604 static CLASS_DEVICE_ATTR(exca, S_IRUGO, show_exca, NULL);
605 #endif
606
607 /*====================================================================*/
608
609 /* this is horribly ugly... proper locking needs to be done here at
610 * some time... */
611 #define LOCKED(x) do { \
612 int retval; \
613 unsigned long flags; \
614 spin_lock_irqsave(&pcc_lock, flags); \
615 retval = x; \
616 spin_unlock_irqrestore(&pcc_lock, flags); \
617 return retval; \
618 } while (0)
619
620
621 static int pcc_get_status(struct pcmcia_socket *s, u_int *value)
622 {
623 unsigned int sock = container_of(s, struct pcc_socket, socket)->number;
624
625 if (socket[sock].flags & IS_ALIVE) {
626 dev_dbg(&s->dev, "pcc_get_status: sock(%d) -EINVAL\n", sock);
627 *value = 0;
628 return -EINVAL;
629 }
630 dev_dbg(&s->dev, "pcc_get_status: sock(%d)\n", sock);
631 LOCKED(_pcc_get_status(sock, value));
632 }
633
634 static int pcc_set_socket(struct pcmcia_socket *s, socket_state_t *state)
635 {
636 unsigned int sock = container_of(s, struct pcc_socket, socket)->number;
637
638 if (socket[sock].flags & IS_ALIVE) {
639 dev_dbg(&s->dev, "pcc_set_socket: sock(%d) -EINVAL\n", sock);
640 return -EINVAL;
641 }
642 dev_dbg(&s->dev, "pcc_set_socket: sock(%d)\n", sock);
643 LOCKED(_pcc_set_socket(sock, state));
644 }
645
646 static int pcc_set_io_map(struct pcmcia_socket *s, struct pccard_io_map *io)
647 {
648 unsigned int sock = container_of(s, struct pcc_socket, socket)->number;
649
650 if (socket[sock].flags & IS_ALIVE) {
651 dev_dbg(&s->dev, "pcc_set_io_map: sock(%d) -EINVAL\n", sock);
652 return -EINVAL;
653 }
654 dev_dbg(&s->dev, "pcc_set_io_map: sock(%d)\n", sock);
655 LOCKED(_pcc_set_io_map(sock, io));
656 }
657
658 static int pcc_set_mem_map(struct pcmcia_socket *s, struct pccard_mem_map *mem)
659 {
660 unsigned int sock = container_of(s, struct pcc_socket, socket)->number;
661
662 if (socket[sock].flags & IS_ALIVE) {
663 dev_dbg(&s->dev, "pcc_set_mem_map: sock(%d) -EINVAL\n", sock);
664 return -EINVAL;
665 }
666 dev_dbg(&s->dev, "pcc_set_mem_map: sock(%d)\n", sock);
667 LOCKED(_pcc_set_mem_map(sock, mem));
668 }
669
670 static int pcc_init(struct pcmcia_socket *s)
671 {
672 dev_dbg(&s->dev, "pcc_init()\n");
673 return 0;
674 }
675
676 static struct pccard_operations pcc_operations = {
677 .init = pcc_init,
678 .get_status = pcc_get_status,
679 .set_socket = pcc_set_socket,
680 .set_io_map = pcc_set_io_map,
681 .set_mem_map = pcc_set_mem_map,
682 };
683
684
685 /*====================================================================*/
686
687 static struct platform_driver pcc_driver = {
688 .driver = {
689 .name = "cfc",
690 },
691 };
692
693 static struct platform_device pcc_device = {
694 .name = "cfc",
695 .id = 0,
696 };
697
698 /*====================================================================*/
699
700 static int __init init_m32r_pcc(void)
701 {
702 int i, ret;
703
704 ret = platform_driver_register(&pcc_driver);
705 if (ret)
706 return ret;
707
708 ret = platform_device_register(&pcc_device);
709 if (ret){
710 platform_driver_unregister(&pcc_driver);
711 return ret;
712 }
713
714 #if defined(CONFIG_PLAT_MAPPI2) || defined(CONFIG_PLAT_MAPPI3)
715 pcc_set(0, (unsigned int)PLD_CFCR0, 0x0f0f);
716 pcc_set(0, (unsigned int)PLD_CFCR1, 0x0200);
717 #endif
718
719 pcc_sockets = 0;
720
721 #if !defined(CONFIG_PLAT_USRV)
722 add_pcc_socket(M32R_PCC0_BASE, PLD_IRQ_CFC_INSERT, CFC_ATTR_MAPBASE,
723 CFC_IOPORT_BASE);
724 #else /* CONFIG_PLAT_USRV */
725 {
726 ulong base, mapaddr;
727 unsigned int ioaddr;
728
729 for (i = 0 ; i < M32R_MAX_PCC ; i++) {
730 base = (ulong)PLD_CFRSTCR;
731 base = base | (i << 8);
732 ioaddr = (i + 1) << 12;
733 mapaddr = CFC_ATTR_MAPBASE | (i << 20);
734 add_pcc_socket(base, 0, mapaddr, ioaddr);
735 }
736 }
737 #endif /* CONFIG_PLAT_USRV */
738
739 if (pcc_sockets == 0) {
740 printk("socket is not found.\n");
741 platform_device_unregister(&pcc_device);
742 platform_driver_unregister(&pcc_driver);
743 return -ENODEV;
744 }
745
746 /* Set up interrupt handler(s) */
747
748 for (i = 0 ; i < pcc_sockets ; i++) {
749 socket[i].socket.dev.parent = &pcc_device.dev;
750 socket[i].socket.ops = &pcc_operations;
751 socket[i].socket.resource_ops = &pccard_static_ops;
752 socket[i].socket.owner = THIS_MODULE;
753 socket[i].number = i;
754 ret = pcmcia_register_socket(&socket[i].socket);
755 if (!ret)
756 socket[i].flags |= IS_REGISTERED;
757 }
758
759 /* Finally, schedule a polling interrupt */
760 if (poll_interval != 0) {
761 poll_timer.function = pcc_interrupt_wrapper;
762 poll_timer.data = 0;
763 init_timer(&poll_timer);
764 poll_timer.expires = jiffies + poll_interval;
765 add_timer(&poll_timer);
766 }
767
768 return 0;
769 } /* init_m32r_pcc */
770
771 static void __exit exit_m32r_pcc(void)
772 {
773 int i;
774
775 for (i = 0; i < pcc_sockets; i++)
776 if (socket[i].flags & IS_REGISTERED)
777 pcmcia_unregister_socket(&socket[i].socket);
778
779 platform_device_unregister(&pcc_device);
780 if (poll_interval != 0)
781 del_timer_sync(&poll_timer);
782
783 platform_driver_unregister(&pcc_driver);
784 } /* exit_m32r_pcc */
785
786 module_init(init_m32r_pcc);
787 module_exit(exit_m32r_pcc);
788 MODULE_LICENSE("Dual MPL/GPL");
789 /*====================================================================*/
Linux with added FPC-III support