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