diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
---|---|---|
committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/pcmcia/m32r_pcc.c |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'drivers/pcmcia/m32r_pcc.c')
-rw-r--r-- | drivers/pcmcia/m32r_pcc.c | 811 |
1 files changed, 811 insertions, 0 deletions
diff --git a/drivers/pcmcia/m32r_pcc.c b/drivers/pcmcia/m32r_pcc.c new file mode 100644 index 000000000000..cafba6f45dfa --- /dev/null +++ b/drivers/pcmcia/m32r_pcc.c | |||
@@ -0,0 +1,811 @@ | |||
1 | /* | ||
2 | * drivers/pcmcia/m32r_pcc.c | ||
3 | * | ||
4 | * Device driver for the PCMCIA 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/config.h> | ||
14 | #include <linux/types.h> | ||
15 | #include <linux/fcntl.h> | ||
16 | #include <linux/string.h> | ||
17 | #include <linux/kernel.h> | ||
18 | #include <linux/errno.h> | ||
19 | #include <linux/timer.h> | ||
20 | #include <linux/sched.h> | ||
21 | #include <linux/slab.h> | ||
22 | #include <linux/ioport.h> | ||
23 | #include <linux/delay.h> | ||
24 | #include <linux/workqueue.h> | ||
25 | #include <linux/interrupt.h> | ||
26 | #include <linux/device.h> | ||
27 | #include <asm/irq.h> | ||
28 | #include <asm/io.h> | ||
29 | #include <asm/bitops.h> | ||
30 | #include <asm/system.h> | ||
31 | #include <asm/addrspace.h> | ||
32 | |||
33 | #include <pcmcia/version.h> | ||
34 | #include <pcmcia/cs_types.h> | ||
35 | #include <pcmcia/ss.h> | ||
36 | #include <pcmcia/cs.h> | ||
37 | |||
38 | /* XXX: should be moved into asm/irq.h */ | ||
39 | #define PCC0_IRQ 24 | ||
40 | #define PCC1_IRQ 25 | ||
41 | |||
42 | #include "m32r_pcc.h" | ||
43 | |||
44 | #define CHAOS_PCC_DEBUG | ||
45 | #ifdef CHAOS_PCC_DEBUG | ||
46 | static volatile u_short dummy_readbuf; | ||
47 | #endif | ||
48 | |||
49 | #define PCC_DEBUG_DBEX | ||
50 | |||
51 | #ifdef DEBUG | ||
52 | static int m32r_pcc_debug; | ||
53 | module_param(m32r_pcc_debug, int, 0644); | ||
54 | #define debug(lvl, fmt, arg...) do { \ | ||
55 | if (m32r_pcc_debug > (lvl)) \ | ||
56 | printk(KERN_DEBUG "m32r_pcc: " fmt , ## arg); \ | ||
57 | } while (0) | ||
58 | #else | ||
59 | #define debug(n, args...) do { } while (0) | ||
60 | #endif | ||
61 | |||
62 | /* Poll status interval -- 0 means default to interrupt */ | ||
63 | static int poll_interval = 0; | ||
64 | |||
65 | typedef enum pcc_space { as_none = 0, as_comm, as_attr, as_io } pcc_as_t; | ||
66 | |||
67 | typedef struct pcc_socket { | ||
68 | u_short type, flags; | ||
69 | struct pcmcia_socket socket; | ||
70 | unsigned int number; | ||
71 | kio_addr_t ioaddr; | ||
72 | u_long mapaddr; | ||
73 | u_long base; /* PCC register base */ | ||
74 | u_char cs_irq, intr; | ||
75 | pccard_io_map io_map[MAX_IO_WIN]; | ||
76 | pccard_mem_map mem_map[MAX_WIN]; | ||
77 | u_char io_win; | ||
78 | u_char mem_win; | ||
79 | pcc_as_t current_space; | ||
80 | u_char last_iodbex; | ||
81 | #ifdef CHAOS_PCC_DEBUG | ||
82 | u_char last_iosize; | ||
83 | #endif | ||
84 | #ifdef CONFIG_PROC_FS | ||
85 | struct proc_dir_entry *proc; | ||
86 | #endif | ||
87 | } pcc_socket_t; | ||
88 | |||
89 | static int pcc_sockets = 0; | ||
90 | static pcc_socket_t socket[M32R_MAX_PCC] = { | ||
91 | { 0, }, /* ... */ | ||
92 | }; | ||
93 | |||
94 | /*====================================================================*/ | ||
95 | |||
96 | static unsigned int pcc_get(u_short, unsigned int); | ||
97 | static void pcc_set(u_short, unsigned int , unsigned int ); | ||
98 | |||
99 | static DEFINE_SPINLOCK(pcc_lock); | ||
100 | |||
101 | void pcc_iorw(int sock, unsigned long port, void *buf, size_t size, size_t nmemb, int wr, int flag) | ||
102 | { | ||
103 | u_long addr; | ||
104 | u_long flags; | ||
105 | int need_ex; | ||
106 | #ifdef PCC_DEBUG_DBEX | ||
107 | int _dbex; | ||
108 | #endif | ||
109 | pcc_socket_t *t = &socket[sock]; | ||
110 | #ifdef CHAOS_PCC_DEBUG | ||
111 | int map_changed = 0; | ||
112 | #endif | ||
113 | |||
114 | /* Need lock ? */ | ||
115 | spin_lock_irqsave(&pcc_lock, flags); | ||
116 | |||
117 | /* | ||
118 | * Check if need dbex | ||
119 | */ | ||
120 | need_ex = (size > 1 && flag == 0) ? PCMOD_DBEX : 0; | ||
121 | #ifdef PCC_DEBUG_DBEX | ||
122 | _dbex = need_ex; | ||
123 | need_ex = 0; | ||
124 | #endif | ||
125 | |||
126 | /* | ||
127 | * calculate access address | ||
128 | */ | ||
129 | addr = t->mapaddr + port - t->ioaddr + KSEG1; /* XXX */ | ||
130 | |||
131 | /* | ||
132 | * Check current mapping | ||
133 | */ | ||
134 | if (t->current_space != as_io || t->last_iodbex != need_ex) { | ||
135 | |||
136 | u_long cbsz; | ||
137 | |||
138 | /* | ||
139 | * Disable first | ||
140 | */ | ||
141 | pcc_set(sock, PCCR, 0); | ||
142 | |||
143 | /* | ||
144 | * Set mode and io address | ||
145 | */ | ||
146 | cbsz = (t->flags & MAP_16BIT) ? 0 : PCMOD_CBSZ; | ||
147 | pcc_set(sock, PCMOD, PCMOD_AS_IO | cbsz | need_ex); | ||
148 | pcc_set(sock, PCADR, addr & 0x1ff00000); | ||
149 | |||
150 | /* | ||
151 | * Enable and read it | ||
152 | */ | ||
153 | pcc_set(sock, PCCR, 1); | ||
154 | |||
155 | #ifdef CHAOS_PCC_DEBUG | ||
156 | #if 0 | ||
157 | map_changed = (t->current_space == as_attr && size == 2); /* XXX */ | ||
158 | #else | ||
159 | map_changed = 1; | ||
160 | #endif | ||
161 | #endif | ||
162 | t->current_space = as_io; | ||
163 | } | ||
164 | |||
165 | /* | ||
166 | * access to IO space | ||
167 | */ | ||
168 | if (size == 1) { | ||
169 | /* Byte */ | ||
170 | unsigned char *bp = (unsigned char *)buf; | ||
171 | |||
172 | #ifdef CHAOS_DEBUG | ||
173 | if (map_changed) { | ||
174 | dummy_readbuf = readb(addr); | ||
175 | } | ||
176 | #endif | ||
177 | if (wr) { | ||
178 | /* write Byte */ | ||
179 | while (nmemb--) { | ||
180 | writeb(*bp++, addr); | ||
181 | } | ||
182 | } else { | ||
183 | /* read Byte */ | ||
184 | while (nmemb--) { | ||
185 | *bp++ = readb(addr); | ||
186 | } | ||
187 | } | ||
188 | } else { | ||
189 | /* Word */ | ||
190 | unsigned short *bp = (unsigned short *)buf; | ||
191 | |||
192 | #ifdef CHAOS_PCC_DEBUG | ||
193 | if (map_changed) { | ||
194 | dummy_readbuf = readw(addr); | ||
195 | } | ||
196 | #endif | ||
197 | if (wr) { | ||
198 | /* write Word */ | ||
199 | while (nmemb--) { | ||
200 | #ifdef PCC_DEBUG_DBEX | ||
201 | if (_dbex) { | ||
202 | unsigned char *cp = (unsigned char *)bp; | ||
203 | unsigned short tmp; | ||
204 | tmp = cp[1] << 8 | cp[0]; | ||
205 | writew(tmp, addr); | ||
206 | bp++; | ||
207 | } else | ||
208 | #endif | ||
209 | writew(*bp++, addr); | ||
210 | } | ||
211 | } else { | ||
212 | /* read Word */ | ||
213 | while (nmemb--) { | ||
214 | #ifdef PCC_DEBUG_DBEX | ||
215 | if (_dbex) { | ||
216 | unsigned char *cp = (unsigned char *)bp; | ||
217 | unsigned short tmp; | ||
218 | tmp = readw(addr); | ||
219 | cp[0] = tmp & 0xff; | ||
220 | cp[1] = (tmp >> 8) & 0xff; | ||
221 | bp++; | ||
222 | } else | ||
223 | #endif | ||
224 | *bp++ = readw(addr); | ||
225 | } | ||
226 | } | ||
227 | } | ||
228 | |||
229 | #if 1 | ||
230 | /* addr is no longer used */ | ||
231 | if ((addr = pcc_get(sock, PCIRC)) & PCIRC_BWERR) { | ||
232 | printk("m32r_pcc: BWERR detected : port 0x%04lx : iosize %dbit\n", | ||
233 | port, size * 8); | ||
234 | pcc_set(sock, PCIRC, addr); | ||
235 | } | ||
236 | #endif | ||
237 | /* | ||
238 | * save state | ||
239 | */ | ||
240 | t->last_iosize = size; | ||
241 | t->last_iodbex = need_ex; | ||
242 | |||
243 | /* Need lock ? */ | ||
244 | |||
245 | spin_unlock_irqrestore(&pcc_lock,flags); | ||
246 | |||
247 | return; | ||
248 | } | ||
249 | |||
250 | void pcc_ioread(int sock, unsigned long port, void *buf, size_t size, size_t nmemb, int flag) { | ||
251 | pcc_iorw(sock, port, buf, size, nmemb, 0, flag); | ||
252 | } | ||
253 | |||
254 | void pcc_iowrite(int sock, unsigned long port, void *buf, size_t size, size_t nmemb, int flag) { | ||
255 | pcc_iorw(sock, port, buf, size, nmemb, 1, flag); | ||
256 | } | ||
257 | |||
258 | /*====================================================================*/ | ||
259 | |||
260 | #define IS_REGISTERED 0x2000 | ||
261 | #define IS_ALIVE 0x8000 | ||
262 | |||
263 | typedef struct pcc_t { | ||
264 | char *name; | ||
265 | u_short flags; | ||
266 | } pcc_t; | ||
267 | |||
268 | static pcc_t pcc[] = { | ||
269 | { "xnux2", 0 }, { "xnux2", 0 }, | ||
270 | }; | ||
271 | |||
272 | static irqreturn_t pcc_interrupt(int, void *, struct pt_regs *); | ||
273 | |||
274 | /*====================================================================*/ | ||
275 | |||
276 | static struct timer_list poll_timer; | ||
277 | |||
278 | static unsigned int pcc_get(u_short sock, unsigned int reg) | ||
279 | { | ||
280 | return inl(socket[sock].base + reg); | ||
281 | } | ||
282 | |||
283 | |||
284 | static void pcc_set(u_short sock, unsigned int reg, unsigned int data) | ||
285 | { | ||
286 | outl(data, socket[sock].base + reg); | ||
287 | } | ||
288 | |||
289 | /*====================================================================== | ||
290 | |||
291 | See if a card is present, powered up, in IO mode, and already | ||
292 | bound to a (non PC Card) Linux driver. We leave these alone. | ||
293 | |||
294 | We make an exception for cards that seem to be serial devices. | ||
295 | |||
296 | ======================================================================*/ | ||
297 | |||
298 | static int __init is_alive(u_short sock) | ||
299 | { | ||
300 | unsigned int stat; | ||
301 | unsigned int f; | ||
302 | |||
303 | stat = pcc_get(sock, PCIRC); | ||
304 | f = (stat & (PCIRC_CDIN1 | PCIRC_CDIN2)) >> 16; | ||
305 | if(!f){ | ||
306 | printk("m32r_pcc: No Card is detected at socket %d : stat = 0x%08x\n",stat,sock); | ||
307 | return 0; | ||
308 | } | ||
309 | if(f!=3) | ||
310 | printk("m32r_pcc: Insertion fail (%.8x) at socket %d\n",stat,sock); | ||
311 | else | ||
312 | printk("m32r_pcc: Card is Inserted at socket %d(%.8x)\n",sock,stat); | ||
313 | return 0; | ||
314 | } | ||
315 | |||
316 | static void add_pcc_socket(ulong base, int irq, ulong mapaddr, kio_addr_t ioaddr) | ||
317 | { | ||
318 | pcc_socket_t *t = &socket[pcc_sockets]; | ||
319 | |||
320 | /* add sockets */ | ||
321 | t->ioaddr = ioaddr; | ||
322 | t->mapaddr = mapaddr; | ||
323 | t->base = base; | ||
324 | #ifdef CHAOS_PCC_DEBUG | ||
325 | t->flags = MAP_16BIT; | ||
326 | #else | ||
327 | t->flags = 0; | ||
328 | #endif | ||
329 | if (is_alive(pcc_sockets)) | ||
330 | t->flags |= IS_ALIVE; | ||
331 | |||
332 | /* add pcc */ | ||
333 | if (t->base > 0) { | ||
334 | request_region(t->base, 0x20, "m32r-pcc"); | ||
335 | } | ||
336 | |||
337 | printk(KERN_INFO " %s ", pcc[pcc_sockets].name); | ||
338 | printk("pcc at 0x%08lx\n", t->base); | ||
339 | |||
340 | /* Update socket interrupt information, capabilities */ | ||
341 | t->socket.features |= (SS_CAP_PCCARD | SS_CAP_STATIC_MAP); | ||
342 | t->socket.map_size = M32R_PCC_MAPSIZE; | ||
343 | t->socket.io_offset = ioaddr; /* use for io access offset */ | ||
344 | t->socket.irq_mask = 0; | ||
345 | t->socket.pci_irq = 2 + pcc_sockets; /* XXX */ | ||
346 | |||
347 | request_irq(irq, pcc_interrupt, 0, "m32r-pcc", pcc_interrupt); | ||
348 | |||
349 | pcc_sockets++; | ||
350 | |||
351 | return; | ||
352 | } | ||
353 | |||
354 | |||
355 | /*====================================================================*/ | ||
356 | |||
357 | static irqreturn_t pcc_interrupt(int irq, void *dev, struct pt_regs *regs) | ||
358 | { | ||
359 | int i, j, irc; | ||
360 | u_int events, active; | ||
361 | int handled = 0; | ||
362 | |||
363 | debug(4, "m32r: pcc_interrupt(%d)\n", irq); | ||
364 | |||
365 | for (j = 0; j < 20; j++) { | ||
366 | active = 0; | ||
367 | for (i = 0; i < pcc_sockets; i++) { | ||
368 | if ((socket[i].cs_irq != irq) && | ||
369 | (socket[i].socket.pci_irq != irq)) | ||
370 | continue; | ||
371 | handled = 1; | ||
372 | irc = pcc_get(i, PCIRC); | ||
373 | irc >>=16; | ||
374 | debug(2, "m32r-pcc:interrput: socket %d pcirc 0x%02x ", i, irc); | ||
375 | if (!irc) | ||
376 | continue; | ||
377 | |||
378 | events = (irc) ? SS_DETECT : 0; | ||
379 | events |= (pcc_get(i,PCCR) & PCCR_PCEN) ? SS_READY : 0; | ||
380 | debug(2, " event 0x%02x\n", events); | ||
381 | |||
382 | if (events) | ||
383 | pcmcia_parse_events(&socket[i].socket, events); | ||
384 | |||
385 | active |= events; | ||
386 | active = 0; | ||
387 | } | ||
388 | if (!active) break; | ||
389 | } | ||
390 | if (j == 20) | ||
391 | printk(KERN_NOTICE "m32r-pcc: infinite loop in interrupt handler\n"); | ||
392 | |||
393 | debug(4, "m32r-pcc: interrupt done\n"); | ||
394 | |||
395 | return IRQ_RETVAL(handled); | ||
396 | } /* pcc_interrupt */ | ||
397 | |||
398 | static void pcc_interrupt_wrapper(u_long data) | ||
399 | { | ||
400 | pcc_interrupt(0, NULL, NULL); | ||
401 | init_timer(&poll_timer); | ||
402 | poll_timer.expires = jiffies + poll_interval; | ||
403 | add_timer(&poll_timer); | ||
404 | } | ||
405 | |||
406 | /*====================================================================*/ | ||
407 | |||
408 | static int _pcc_get_status(u_short sock, u_int *value) | ||
409 | { | ||
410 | u_int status; | ||
411 | |||
412 | status = pcc_get(sock,PCIRC); | ||
413 | *value = ((status & PCIRC_CDIN1) && (status & PCIRC_CDIN2)) | ||
414 | ? SS_DETECT : 0; | ||
415 | |||
416 | status = pcc_get(sock,PCCR); | ||
417 | |||
418 | #if 0 | ||
419 | *value |= (status & PCCR_PCEN) ? SS_READY : 0; | ||
420 | #else | ||
421 | *value |= SS_READY; /* XXX: always */ | ||
422 | #endif | ||
423 | |||
424 | status = pcc_get(sock,PCCSIGCR); | ||
425 | *value |= (status & PCCSIGCR_VEN) ? SS_POWERON : 0; | ||
426 | |||
427 | debug(3, "m32r-pcc: GetStatus(%d) = %#4.4x\n", sock, *value); | ||
428 | return 0; | ||
429 | } /* _get_status */ | ||
430 | |||
431 | /*====================================================================*/ | ||
432 | |||
433 | static int _pcc_get_socket(u_short sock, socket_state_t *state) | ||
434 | { | ||
435 | debug(3, "m32r-pcc: GetSocket(%d) = flags %#3.3x, Vcc %d, Vpp %d, " | ||
436 | "io_irq %d, csc_mask %#2.2x\n", sock, state->flags, | ||
437 | state->Vcc, state->Vpp, state->io_irq, state->csc_mask); | ||
438 | return 0; | ||
439 | } /* _get_socket */ | ||
440 | |||
441 | /*====================================================================*/ | ||
442 | |||
443 | static int _pcc_set_socket(u_short sock, socket_state_t *state) | ||
444 | { | ||
445 | u_long reg = 0; | ||
446 | |||
447 | debug(3, "m32r-pcc: SetSocket(%d, flags %#3.3x, Vcc %d, Vpp %d, " | ||
448 | "io_irq %d, csc_mask %#2.2x)", sock, state->flags, | ||
449 | state->Vcc, state->Vpp, state->io_irq, state->csc_mask); | ||
450 | |||
451 | if (state->Vcc) { | ||
452 | /* | ||
453 | * 5V only | ||
454 | */ | ||
455 | if (state->Vcc == 50) { | ||
456 | reg |= PCCSIGCR_VEN; | ||
457 | } else { | ||
458 | return -EINVAL; | ||
459 | } | ||
460 | } | ||
461 | |||
462 | if (state->flags & SS_RESET) { | ||
463 | debug(3, ":RESET\n"); | ||
464 | reg |= PCCSIGCR_CRST; | ||
465 | } | ||
466 | if (state->flags & SS_OUTPUT_ENA){ | ||
467 | debug(3, ":OUTPUT_ENA\n"); | ||
468 | /* bit clear */ | ||
469 | } else { | ||
470 | reg |= PCCSIGCR_SEN; | ||
471 | } | ||
472 | |||
473 | pcc_set(sock,PCCSIGCR,reg); | ||
474 | |||
475 | #ifdef DEBUG | ||
476 | if(state->flags & SS_IOCARD){ | ||
477 | debug(3, ":IOCARD"); | ||
478 | } | ||
479 | if (state->flags & SS_PWR_AUTO) { | ||
480 | debug(3, ":PWR_AUTO"); | ||
481 | } | ||
482 | if (state->csc_mask & SS_DETECT) | ||
483 | debug(3, ":csc-SS_DETECT"); | ||
484 | if (state->flags & SS_IOCARD) { | ||
485 | if (state->csc_mask & SS_STSCHG) | ||
486 | debug(3, ":STSCHG"); | ||
487 | } else { | ||
488 | if (state->csc_mask & SS_BATDEAD) | ||
489 | debug(3, ":BATDEAD"); | ||
490 | if (state->csc_mask & SS_BATWARN) | ||
491 | debug(3, ":BATWARN"); | ||
492 | if (state->csc_mask & SS_READY) | ||
493 | debug(3, ":READY"); | ||
494 | } | ||
495 | debug(3, "\n"); | ||
496 | #endif | ||
497 | return 0; | ||
498 | } /* _set_socket */ | ||
499 | |||
500 | /*====================================================================*/ | ||
501 | |||
502 | static int _pcc_set_io_map(u_short sock, struct pccard_io_map *io) | ||
503 | { | ||
504 | u_char map; | ||
505 | |||
506 | debug(3, "m32r-pcc: SetIOMap(%d, %d, %#2.2x, %d ns, " | ||
507 | "%#lx-%#lx)\n", sock, io->map, io->flags, | ||
508 | io->speed, io->start, io->stop); | ||
509 | map = io->map; | ||
510 | |||
511 | return 0; | ||
512 | } /* _set_io_map */ | ||
513 | |||
514 | /*====================================================================*/ | ||
515 | |||
516 | static int _pcc_set_mem_map(u_short sock, struct pccard_mem_map *mem) | ||
517 | { | ||
518 | |||
519 | u_char map = mem->map; | ||
520 | u_long mode; | ||
521 | u_long addr; | ||
522 | pcc_socket_t *t = &socket[sock]; | ||
523 | #ifdef CHAOS_PCC_DEBUG | ||
524 | #if 0 | ||
525 | pcc_as_t last = t->current_space; | ||
526 | #endif | ||
527 | #endif | ||
528 | |||
529 | debug(3, "m32r-pcc: SetMemMap(%d, %d, %#2.2x, %d ns, " | ||
530 | "%#lx, %#x)\n", sock, map, mem->flags, | ||
531 | mem->speed, mem->static_start, mem->card_start); | ||
532 | |||
533 | /* | ||
534 | * sanity check | ||
535 | */ | ||
536 | if ((map > MAX_WIN) || (mem->card_start > 0x3ffffff)){ | ||
537 | return -EINVAL; | ||
538 | } | ||
539 | |||
540 | /* | ||
541 | * de-activate | ||
542 | */ | ||
543 | if ((mem->flags & MAP_ACTIVE) == 0) { | ||
544 | t->current_space = as_none; | ||
545 | return 0; | ||
546 | } | ||
547 | |||
548 | /* | ||
549 | * Disable first | ||
550 | */ | ||
551 | pcc_set(sock, PCCR, 0); | ||
552 | |||
553 | /* | ||
554 | * Set mode | ||
555 | */ | ||
556 | if (mem->flags & MAP_ATTRIB) { | ||
557 | mode = PCMOD_AS_ATTRIB | PCMOD_CBSZ; | ||
558 | t->current_space = as_attr; | ||
559 | } else { | ||
560 | mode = 0; /* common memory */ | ||
561 | t->current_space = as_comm; | ||
562 | } | ||
563 | pcc_set(sock, PCMOD, mode); | ||
564 | |||
565 | /* | ||
566 | * Set address | ||
567 | */ | ||
568 | addr = t->mapaddr + (mem->card_start & M32R_PCC_MAPMASK); | ||
569 | pcc_set(sock, PCADR, addr); | ||
570 | |||
571 | mem->static_start = addr + mem->card_start; | ||
572 | |||
573 | /* | ||
574 | * Enable again | ||
575 | */ | ||
576 | pcc_set(sock, PCCR, 1); | ||
577 | |||
578 | #ifdef CHAOS_PCC_DEBUG | ||
579 | #if 0 | ||
580 | if (last != as_attr) { | ||
581 | #else | ||
582 | if (1) { | ||
583 | #endif | ||
584 | dummy_readbuf = *(u_char *)(addr + KSEG1); | ||
585 | } | ||
586 | #endif | ||
587 | |||
588 | return 0; | ||
589 | |||
590 | } /* _set_mem_map */ | ||
591 | |||
592 | #if 0 /* driver model ordering issue */ | ||
593 | /*====================================================================== | ||
594 | |||
595 | Routines for accessing socket information and register dumps via | ||
596 | /proc/bus/pccard/... | ||
597 | |||
598 | ======================================================================*/ | ||
599 | |||
600 | static ssize_t show_info(struct class_device *class_dev, char *buf) | ||
601 | { | ||
602 | pcc_socket_t *s = container_of(class_dev, struct pcc_socket, | ||
603 | socket.dev); | ||
604 | |||
605 | return sprintf(buf, "type: %s\nbase addr: 0x%08lx\n", | ||
606 | pcc[s->type].name, s->base); | ||
607 | } | ||
608 | |||
609 | static ssize_t show_exca(struct class_device *class_dev, char *buf) | ||
610 | { | ||
611 | /* FIXME */ | ||
612 | |||
613 | return 0; | ||
614 | } | ||
615 | |||
616 | static CLASS_DEVICE_ATTR(info, S_IRUGO, show_info, NULL); | ||
617 | static CLASS_DEVICE_ATTR(exca, S_IRUGO, show_exca, NULL); | ||
618 | #endif | ||
619 | |||
620 | /*====================================================================*/ | ||
621 | |||
622 | /* this is horribly ugly... proper locking needs to be done here at | ||
623 | * some time... */ | ||
624 | #define LOCKED(x) do { \ | ||
625 | int retval; \ | ||
626 | unsigned long flags; \ | ||
627 | spin_lock_irqsave(&pcc_lock, flags); \ | ||
628 | retval = x; \ | ||
629 | spin_unlock_irqrestore(&pcc_lock, flags); \ | ||
630 | return retval; \ | ||
631 | } while (0) | ||
632 | |||
633 | |||
634 | static int pcc_get_status(struct pcmcia_socket *s, u_int *value) | ||
635 | { | ||
636 | unsigned int sock = container_of(s, struct pcc_socket, socket)->number; | ||
637 | |||
638 | if (socket[sock].flags & IS_ALIVE) { | ||
639 | *value = 0; | ||
640 | return -EINVAL; | ||
641 | } | ||
642 | LOCKED(_pcc_get_status(sock, value)); | ||
643 | } | ||
644 | |||
645 | static int pcc_get_socket(struct pcmcia_socket *s, socket_state_t *state) | ||
646 | { | ||
647 | unsigned int sock = container_of(s, struct pcc_socket, socket)->number; | ||
648 | |||
649 | if (socket[sock].flags & IS_ALIVE) | ||
650 | return -EINVAL; | ||
651 | LOCKED(_pcc_get_socket(sock, state)); | ||
652 | } | ||
653 | |||
654 | static int pcc_set_socket(struct pcmcia_socket *s, socket_state_t *state) | ||
655 | { | ||
656 | unsigned int sock = container_of(s, struct pcc_socket, socket)->number; | ||
657 | |||
658 | if (socket[sock].flags & IS_ALIVE) | ||
659 | return -EINVAL; | ||
660 | |||
661 | LOCKED(_pcc_set_socket(sock, state)); | ||
662 | } | ||
663 | |||
664 | static int pcc_set_io_map(struct pcmcia_socket *s, struct pccard_io_map *io) | ||
665 | { | ||
666 | unsigned int sock = container_of(s, struct pcc_socket, socket)->number; | ||
667 | |||
668 | if (socket[sock].flags & IS_ALIVE) | ||
669 | return -EINVAL; | ||
670 | LOCKED(_pcc_set_io_map(sock, io)); | ||
671 | } | ||
672 | |||
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 | return -EINVAL; | ||
679 | LOCKED(_pcc_set_mem_map(sock, mem)); | ||
680 | } | ||
681 | |||
682 | static int pcc_init(struct pcmcia_socket *s) | ||
683 | { | ||
684 | debug(4, "m32r-pcc: init call\n"); | ||
685 | return 0; | ||
686 | } | ||
687 | |||
688 | static struct pccard_operations pcc_operations = { | ||
689 | .init = pcc_init, | ||
690 | .get_status = pcc_get_status, | ||
691 | .get_socket = pcc_get_socket, | ||
692 | .set_socket = pcc_set_socket, | ||
693 | .set_io_map = pcc_set_io_map, | ||
694 | .set_mem_map = pcc_set_mem_map, | ||
695 | }; | ||
696 | |||
697 | /*====================================================================*/ | ||
698 | |||
699 | static int m32r_pcc_suspend(struct device *dev, u32 state, u32 level) | ||
700 | { | ||
701 | int ret = 0; | ||
702 | if (level == SUSPEND_SAVE_STATE) | ||
703 | ret = pcmcia_socket_dev_suspend(dev, state); | ||
704 | return ret; | ||
705 | } | ||
706 | |||
707 | static int m32r_pcc_resume(struct device *dev, u32 level) | ||
708 | { | ||
709 | int ret = 0; | ||
710 | if (level == RESUME_RESTORE_STATE) | ||
711 | ret = pcmcia_socket_dev_resume(dev); | ||
712 | return ret; | ||
713 | } | ||
714 | |||
715 | |||
716 | static struct device_driver pcc_driver = { | ||
717 | .name = "pcc", | ||
718 | .bus = &platform_bus_type, | ||
719 | .suspend = m32r_pcc_suspend, | ||
720 | .resume = m32r_pcc_resume, | ||
721 | }; | ||
722 | |||
723 | static struct platform_device pcc_device = { | ||
724 | .name = "pcc", | ||
725 | .id = 0, | ||
726 | }; | ||
727 | |||
728 | /*====================================================================*/ | ||
729 | |||
730 | static int __init init_m32r_pcc(void) | ||
731 | { | ||
732 | int i, ret; | ||
733 | |||
734 | ret = driver_register(&pcc_driver); | ||
735 | if (ret) | ||
736 | return ret; | ||
737 | |||
738 | ret = platform_device_register(&pcc_device); | ||
739 | if (ret){ | ||
740 | driver_unregister(&pcc_driver); | ||
741 | return ret; | ||
742 | } | ||
743 | |||
744 | printk(KERN_INFO "m32r PCC probe:\n"); | ||
745 | |||
746 | pcc_sockets = 0; | ||
747 | |||
748 | add_pcc_socket(M32R_PCC0_BASE, PCC0_IRQ, M32R_PCC0_MAPBASE, 0x1000); | ||
749 | |||
750 | #ifdef CONFIG_M32RPCC_SLOT2 | ||
751 | add_pcc_socket(M32R_PCC1_BASE, PCC1_IRQ, M32R_PCC1_MAPBASE, 0x2000); | ||
752 | #endif | ||
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.dev = &pcc_device.dev; | ||
765 | socket[i].socket.ops = &pcc_operations; | ||
766 | socket[i].socket.resource_ops = &pccard_static_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 | |||
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 | /*====================================================================*/ | ||