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