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ixgbe: cleanup unnecessary return value in ixgbe_cache_ring_rss
[net-next-2.6.git] / drivers / pcmcia / m32r_cfc.c
CommitLineData
1da177e4
LT		 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>
1da177e4
LT		 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>
1da177e4
LT		 19#include <linux/ioport.h>
20#include <linux/delay.h>
21#include <linux/workqueue.h>
22#include <linux/interrupt.h>
d052d1be 23#include <linux/platform_device.h>
934bb7f8 24#include <linux/bitops.h>
1da177e4
LT		 25#include <asm/irq.h>
26#include <asm/io.h>
1da177e4
LT		 27#include <asm/system.h>
28
1da177e4 29#include <pcmcia/ss.h>
1da177e4
LT		 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
1da177e4
LT		 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;
906da809 47 unsigned int ioaddr;
1da177e4
LT		 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
c9f50ddd 112 pr_debug("m32r_cfc: pcc_ioread_byte: sock=%d, port=%#lx, buf=%p, "
1da177e4
LT		 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 }
c9f50ddd 121 pr_debug("m32r_cfc: pcc_ioread_byte: addr=%#lx\n", addr);
1da177e4
LT		 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
c9f50ddd 137 pr_debug("m32r_cfc: pcc_ioread_word: sock=%d, port=%#lx, "
1da177e4
LT		 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 }
c9f50ddd 152 pr_debug("m32r_cfc: pcc_ioread_word: addr=%#lx\n", addr);
1da177e4
LT		 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
c9f50ddd 168 pr_debug("m32r_cfc: pcc_iowrite_byte: sock=%d, port=%#lx, "
1da177e4
LT		 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 }
c9f50ddd 178 pr_debug("m32r_cfc: pcc_iowrite_byte: addr=%#lx\n", addr);
1da177e4
LT		 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
c9f50ddd 193 pr_debug("m32r_cfc: pcc_iowrite_word: sock=%d, port=%#lx, "
1da177e4
LT		 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
c9f50ddd 215 pr_debug("m32r_cfc: pcc_iowrite_word: addr=%#lx\n", addr);
1da177e4
LT		 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
7d12e780 242static irqreturn_t pcc_interrupt(int, void *);
1da177e4
LT		 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);
c9f50ddd 251 pr_debug("m32r_cfc: pcc_get: reg(0x%08x)=0x%04x\n", reg, val);
1da177e4
LT		 252 return val;
253}
254
255
256static void pcc_set(u_short sock, unsigned int reg, unsigned int data)
257{
258 outw(data, reg);
c9f50ddd 259 pr_debug("m32r_cfc: pcc_set: reg(0x%08x)=0x%04x\n", reg, data);
1da177e4
LT		 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
c9f50ddd 275 pr_debug("m32r_cfc: is_alive:\n");
1da177e4
LT		 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);
c9f50ddd 282 pr_debug("m32r_cfc: is_alive: sock stat is 0x%04x\n", stat);
1da177e4
LT		 283
284 return 0;
285}
286
906da809
OJ		 287static void add_pcc_socket(ulong base, int irq, ulong mapaddr,
288 unsigned int ioaddr)
1da177e4
LT		 289{
290 pcc_socket_t *t = &socket[pcc_sockets];
291
c9f50ddd 292 pr_debug("m32r_cfc: add_pcc_socket: base=%#lx, irq=%d, "
1da177e4
LT		 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);
ad09d583 343#ifndef CONFIG_PLAT_MAPPI3
1da177e4
LT		 344 /* eject interrupt */
345 request_irq(irq+1, pcc_interrupt, 0, "m32r_cfc", pcc_interrupt);
ad09d583 346#endif
c9f50ddd 347 pr_debug("m32r_cfc: enable CFMSK, RDYSEL\n");
1da177e4
LT		 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
7d12e780 361static irqreturn_t pcc_interrupt(int irq, void *dev)
1da177e4
LT		 362{
363 int i;
364 u_int events = 0;
365 int handled = 0;
366
c9f50ddd 367 pr_debug("m32r_cfc: pcc_interrupt: irq=%d, dev=%p\n", irq, dev);
1da177e4
LT		 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;
c9f50ddd 373 pr_debug("m32r_cfc: pcc_interrupt: socket %d irq 0x%02x ",
1da177e4
LT		 374 i, irq);
375 events |= SS_DETECT; /* insert or eject */
376 if (events)
377 pcmcia_parse_events(&socket[i].socket, events);
378 }
c9f50ddd 379 pr_debug("m32r_cfc: pcc_interrupt: done\n");
1da177e4
LT		 380
381 return IRQ_RETVAL(handled);
382} /* pcc_interrupt */
383
384static void pcc_interrupt_wrapper(u_long data)
385{
c9f50ddd 386 pr_debug("m32r_cfc: pcc_interrupt_wrapper:\n");
1dd997f8 387 pcc_interrupt(0, NULL);
1da177e4
LT		 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
c9f50ddd 399 pr_debug("m32r_cfc: _pcc_get_status:\n");
1da177e4
LT		 400 status = pcc_get(sock, (unsigned int)PLD_CFSTS);
401 *value = (status) ? SS_DETECT : 0;
c9f50ddd 402 pr_debug("m32r_cfc: _pcc_get_status: status=0x%08x\n", status);
1da177e4
LT		 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)) {
c9f50ddd 409 pr_debug("m32r_cfc: _pcc_get_status: "
1da177e4
LT		 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);
c9f50ddd 428 pr_debug("m32r_cfc: _pcc_get_status: "
1da177e4
LT		 429 "power off (CPCR=0x%08x)\n", status);
430 }
934bb7f8 431#elif defined(CONFIG_PLAT_MAPPI2) || defined(CONFIG_PLAT_MAPPI3)
1da177e4
LT		 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 }
934bb7f8
HT		 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);
c9f50ddd 454 pr_debug("m32r_cfc: _pcc_get_status: "
934bb7f8 455 "power off (CPCR=0x%08x)\n", status);
1da177e4
LT		 456 }
457#else
458#error no platform configuration
459#endif
c9f50ddd 460 pr_debug("m32r_cfc: _pcc_get_status: GetStatus(%d) = %#4.4x\n",
1da177e4
LT		 461 sock, *value);
462 return 0;
463} /* _get_status */
464
465/*====================================================================*/
466
1da177e4
LT		 467static int _pcc_set_socket(u_short sock, socket_state_t *state)
468{
c9f50ddd 469 pr_debug("m32r_cfc: SetSocket(%d, flags %#3.3x, Vcc %d, Vpp %d, "
1da177e4
LT		 470 "io_irq %d, csc_mask %#2.2x)\n", sock, state->flags,
471 state->Vcc, state->Vpp, state->io_irq, state->csc_mask);
472
934bb7f8 473#if defined(CONFIG_PLAT_M32700UT) || defined(CONFIG_PLAT_USRV) || defined(CONFIG_PLAT_OPSPUT) || defined(CONFIG_PLAT_MAPPI2) || defined(CONFIG_PLAT_MAPPI3)
1da177e4
LT		 474 if (state->Vcc) {
475 if ((state->Vcc != 50) && (state->Vcc != 33))
476 return -EINVAL;
477 /* accept 5V and 3.3V */
478 }
1da177e4 479#endif
1da177e4 480 if (state->flags & SS_RESET) {
c9f50ddd 481 pr_debug(":RESET\n");
1da177e4
LT		 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){
c9f50ddd 487 pr_debug(":OUTPUT_ENA\n");
1da177e4
LT		 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
1da177e4 494 if(state->flags & SS_IOCARD){
c9f50ddd 495 pr_debug(":IOCARD");
1da177e4
LT		 496 }
497 if (state->flags & SS_PWR_AUTO) {
c9f50ddd 498 pr_debug(":PWR_AUTO");
1da177e4
LT		 499 }
500 if (state->csc_mask & SS_DETECT)
c9f50ddd 501 pr_debug(":csc-SS_DETECT");
1da177e4
LT		 502 if (state->flags & SS_IOCARD) {
503 if (state->csc_mask & SS_STSCHG)
c9f50ddd 504 pr_debug(":STSCHG");
1da177e4
LT		 505 } else {
506 if (state->csc_mask & SS_BATDEAD)
c9f50ddd 507 pr_debug(":BATDEAD");
1da177e4 508 if (state->csc_mask & SS_BATWARN)
c9f50ddd 509 pr_debug(":BATWARN");
1da177e4 510 if (state->csc_mask & SS_READY)
c9f50ddd 511 pr_debug(":READY");
1da177e4 512 }
c9f50ddd 513 pr_debug("\n");
1da177e4
LT		 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
c9f50ddd 523 pr_debug("m32r_cfc: SetIOMap(%d, %d, %#2.2x, %d ns, "
5f784336
WS		 524 "%#llx-%#llx)\n", sock, io->map, io->flags,
525 io->speed, (unsigned long long)io->start,
526 (unsigned long long)io->stop);
1da177e4
LT		 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
c9f50ddd 541 pr_debug("m32r_cfc: SetMemMap(%d, %d, %#2.2x, %d ns, "
5f784336
WS		 542 "%#llx, %#x)\n", sock, map, mem->flags,
543 mem->speed, (unsigned long long)mem->static_start,
544 mem->card_start);
1da177e4
LT		 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) {
c9f50ddd 627 dev_dbg(&s->dev, "pcc_get_status: sock(%d) -EINVAL\n", sock);
1da177e4
LT		 628 *value = 0;
629 return -EINVAL;
630 }
c9f50ddd 631 dev_dbg(&s->dev, "pcc_get_status: sock(%d)\n", sock);
1da177e4
LT		 632 LOCKED(_pcc_get_status(sock, value));
633}
634
1da177e4
LT		 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) {
c9f50ddd 640 dev_dbg(&s->dev, "pcc_set_socket: sock(%d) -EINVAL\n", sock);
1da177e4
LT		 641 return -EINVAL;
642 }
c9f50ddd 643 dev_dbg(&s->dev, "pcc_set_socket: sock(%d)\n", sock);
1da177e4
LT		 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) {
c9f50ddd 652 dev_dbg(&s->dev, "pcc_set_io_map: sock(%d) -EINVAL\n", sock);
1da177e4
LT		 653 return -EINVAL;
654 }
c9f50ddd 655 dev_dbg(&s->dev, "pcc_set_io_map: sock(%d)\n", sock);
1da177e4
LT		 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) {
c9f50ddd 664 dev_dbg(&s->dev, "pcc_set_mem_map: sock(%d) -EINVAL\n", sock);
1da177e4
LT		 665 return -EINVAL;
666 }
c9f50ddd 667 dev_dbg(&s->dev, "pcc_set_mem_map: sock(%d)\n", sock);
1da177e4
LT		 668 LOCKED(_pcc_set_mem_map(sock, mem));
669}
670
671static int pcc_init(struct pcmcia_socket *s)
672{
c9f50ddd 673 dev_dbg(&s->dev, "pcc_init()\n");
1da177e4
LT		 674 return 0;
675}
676
677static struct pccard_operations pcc_operations = {
678 .init = pcc_init,
679 .get_status = pcc_get_status,
1da177e4
LT		 680 .set_socket = pcc_set_socket,
681 .set_io_map = pcc_set_io_map,
682 .set_mem_map = pcc_set_mem_map,
683};
684
7a192ec3 685
1da177e4
LT		 686/*====================================================================*/
687
7a192ec3
ML		 688static struct platform_driver pcc_driver = {
689 .driver = {
690 .name = "cfc",
691 .owner = THIS_MODULE,
692 },
1da177e4
LT		 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
7a192ec3 706 ret = platform_driver_register(&pcc_driver);
1da177e4
LT		 707 if (ret)
708 return ret;
709
710 ret = platform_device_register(&pcc_device);
711 if (ret){
7a192ec3 712 platform_driver_unregister(&pcc_driver);
1da177e4
LT		 713 return ret;
714 }
715
934bb7f8 716#if defined(CONFIG_PLAT_MAPPI2) || defined(CONFIG_PLAT_MAPPI3)
1da177e4
LT		 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;
906da809 729 unsigned int ioaddr;
1da177e4
LT		 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);
7a192ec3 744 platform_driver_unregister(&pcc_driver);
1da177e4
LT		 745 return -ENODEV;
746 }
747
748 /* Set up interrupt handler(s) */
749
750 for (i = 0 ; i < pcc_sockets ; i++) {
dfe461ae 751 socket[i].socket.dev.parent = &pcc_device.dev;
1da177e4 752 socket[i].socket.ops = &pcc_operations;
a7eb169d 753 socket[i].socket.resource_ops = &pccard_static_ops;
1da177e4
LT		 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
7a192ec3 792 platform_driver_unregister(&pcc_driver);
1da177e4
LT		 793} /* exit_m32r_pcc */
794
795module_init(init_m32r_pcc);
796module_exit(exit_m32r_pcc);
797MODULE_LICENSE("Dual MPL/GPL");
798/*====================================================================*/
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