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66213b3c ML |
1 | /* |
2 | * PCMCIA socket code for the Alchemy Db1xxx/Pb1xxx boards. | |
3 | * | |
4 | * Copyright (c) 2009 Manuel Lauss <manuel.lauss@gmail.com> | |
5 | * | |
6 | */ | |
7 | ||
8 | /* This is a fairly generic PCMCIA socket driver suitable for the | |
9 | * following Alchemy Development boards: | |
10 | * Db1000, Db/Pb1500, Db/Pb1100, Db/Pb1550, Db/Pb1200. | |
11 | * | |
12 | * The Db1000 is used as a reference: Per-socket card-, carddetect- and | |
13 | * statuschange IRQs connected to SoC GPIOs, control and status register | |
14 | * bits arranged in per-socket groups in an external PLD. All boards | |
15 | * listed here use this layout, including bit positions and meanings. | |
16 | * Of course there are exceptions in later boards: | |
17 | * | |
18 | * - Pb1100/Pb1500: single socket only; voltage key bits VS are | |
19 | * at STATUS[5:4] (instead of STATUS[1:0]). | |
20 | * - Au1200-based: additional card-eject irqs, irqs not gpios! | |
21 | */ | |
22 | ||
23 | #include <linux/delay.h> | |
24 | #include <linux/gpio.h> | |
25 | #include <linux/interrupt.h> | |
26 | #include <linux/pm.h> | |
27 | #include <linux/platform_device.h> | |
28 | #include <linux/resource.h> | |
29 | #include <linux/spinlock.h> | |
30 | ||
31 | #include <pcmcia/cs_types.h> | |
32 | #include <pcmcia/ss.h> | |
33 | ||
34 | #include <asm/mach-au1x00/au1000.h> | |
35 | #include <asm/mach-db1x00/bcsr.h> | |
36 | ||
37 | #define MEM_MAP_SIZE 0x400000 | |
38 | #define IO_MAP_SIZE 0x1000 | |
39 | ||
40 | struct db1x_pcmcia_sock { | |
41 | struct pcmcia_socket socket; | |
42 | int nr; /* socket number */ | |
43 | void *virt_io; | |
44 | ||
45 | /* the "pseudo" addresses of the PCMCIA space. */ | |
11b897cf ML |
46 | phys_addr_t phys_io; |
47 | phys_addr_t phys_attr; | |
48 | phys_addr_t phys_mem; | |
66213b3c ML |
49 | |
50 | /* previous flags for set_socket() */ | |
51 | unsigned int old_flags; | |
52 | ||
53 | /* interrupt sources: linux irq numbers! */ | |
54 | int insert_irq; /* default carddetect irq */ | |
55 | int stschg_irq; /* card-status-change irq */ | |
56 | int card_irq; /* card irq */ | |
57 | int eject_irq; /* db1200/pb1200 have these */ | |
58 | ||
59 | #define BOARD_TYPE_DEFAULT 0 /* most boards */ | |
60 | #define BOARD_TYPE_DB1200 1 /* IRQs aren't gpios */ | |
61 | #define BOARD_TYPE_PB1100 2 /* VS bits slightly different */ | |
62 | int board_type; | |
63 | }; | |
64 | ||
65 | #define to_db1x_socket(x) container_of(x, struct db1x_pcmcia_sock, socket) | |
66 | ||
67 | /* DB/PB1200: check CPLD SIGSTATUS register bit 10/12 */ | |
68 | static int db1200_card_inserted(struct db1x_pcmcia_sock *sock) | |
69 | { | |
70 | unsigned short sigstat; | |
71 | ||
72 | sigstat = bcsr_read(BCSR_SIGSTAT); | |
73 | return sigstat & 1 << (8 + 2 * sock->nr); | |
74 | } | |
75 | ||
76 | /* carddetect gpio: low-active */ | |
77 | static int db1000_card_inserted(struct db1x_pcmcia_sock *sock) | |
78 | { | |
79 | return !gpio_get_value(irq_to_gpio(sock->insert_irq)); | |
80 | } | |
81 | ||
82 | static int db1x_card_inserted(struct db1x_pcmcia_sock *sock) | |
83 | { | |
84 | switch (sock->board_type) { | |
85 | case BOARD_TYPE_DB1200: | |
86 | return db1200_card_inserted(sock); | |
87 | default: | |
88 | return db1000_card_inserted(sock); | |
89 | } | |
90 | } | |
91 | ||
92 | /* STSCHG tends to bounce heavily when cards are inserted/ejected. | |
93 | * To avoid this, the interrupt is normally disabled and only enabled | |
94 | * after reset to a card has been de-asserted. | |
95 | */ | |
96 | static inline void set_stschg(struct db1x_pcmcia_sock *sock, int en) | |
97 | { | |
98 | if (sock->stschg_irq != -1) { | |
99 | if (en) | |
100 | enable_irq(sock->stschg_irq); | |
101 | else | |
102 | disable_irq(sock->stschg_irq); | |
103 | } | |
104 | } | |
105 | ||
106 | static irqreturn_t db1000_pcmcia_cdirq(int irq, void *data) | |
107 | { | |
108 | struct db1x_pcmcia_sock *sock = data; | |
109 | ||
110 | pcmcia_parse_events(&sock->socket, SS_DETECT); | |
111 | ||
112 | return IRQ_HANDLED; | |
113 | } | |
114 | ||
115 | static irqreturn_t db1000_pcmcia_stschgirq(int irq, void *data) | |
116 | { | |
117 | struct db1x_pcmcia_sock *sock = data; | |
118 | ||
119 | pcmcia_parse_events(&sock->socket, SS_STSCHG); | |
120 | ||
121 | return IRQ_HANDLED; | |
122 | } | |
123 | ||
124 | static irqreturn_t db1200_pcmcia_cdirq(int irq, void *data) | |
125 | { | |
126 | struct db1x_pcmcia_sock *sock = data; | |
127 | ||
128 | /* Db/Pb1200 have separate per-socket insertion and ejection | |
129 | * interrupts which stay asserted as long as the card is | |
130 | * inserted/missing. The one which caused us to be called | |
131 | * needs to be disabled and the other one enabled. | |
132 | */ | |
133 | if (irq == sock->insert_irq) { | |
134 | disable_irq_nosync(sock->insert_irq); | |
135 | enable_irq(sock->eject_irq); | |
136 | } else { | |
137 | disable_irq_nosync(sock->eject_irq); | |
138 | enable_irq(sock->insert_irq); | |
139 | } | |
140 | ||
141 | pcmcia_parse_events(&sock->socket, SS_DETECT); | |
142 | ||
143 | return IRQ_HANDLED; | |
144 | } | |
145 | ||
146 | static int db1x_pcmcia_setup_irqs(struct db1x_pcmcia_sock *sock) | |
147 | { | |
148 | int ret; | |
149 | unsigned long flags; | |
150 | ||
151 | if (sock->stschg_irq != -1) { | |
152 | ret = request_irq(sock->stschg_irq, db1000_pcmcia_stschgirq, | |
153 | 0, "pcmcia_stschg", sock); | |
154 | if (ret) | |
155 | return ret; | |
156 | } | |
157 | ||
158 | /* Db/Pb1200 have separate per-socket insertion and ejection | |
159 | * interrupts, which should show edge behaviour but don't. | |
160 | * So interrupts are disabled until both insertion and | |
161 | * ejection handler have been registered and the currently | |
162 | * active one disabled. | |
163 | */ | |
164 | if (sock->board_type == BOARD_TYPE_DB1200) { | |
165 | local_irq_save(flags); | |
166 | ||
167 | ret = request_irq(sock->insert_irq, db1200_pcmcia_cdirq, | |
168 | IRQF_DISABLED, "pcmcia_insert", sock); | |
169 | if (ret) | |
170 | goto out1; | |
171 | ||
172 | ret = request_irq(sock->eject_irq, db1200_pcmcia_cdirq, | |
173 | IRQF_DISABLED, "pcmcia_eject", sock); | |
174 | if (ret) { | |
175 | free_irq(sock->insert_irq, sock); | |
176 | local_irq_restore(flags); | |
177 | goto out1; | |
178 | } | |
179 | ||
180 | /* disable the currently active one */ | |
181 | if (db1200_card_inserted(sock)) | |
182 | disable_irq_nosync(sock->insert_irq); | |
183 | else | |
184 | disable_irq_nosync(sock->eject_irq); | |
185 | ||
186 | local_irq_restore(flags); | |
187 | } else { | |
188 | /* all other (older) Db1x00 boards use a GPIO to show | |
189 | * card detection status: use both-edge triggers. | |
190 | */ | |
191 | set_irq_type(sock->insert_irq, IRQ_TYPE_EDGE_BOTH); | |
192 | ret = request_irq(sock->insert_irq, db1000_pcmcia_cdirq, | |
193 | 0, "pcmcia_carddetect", sock); | |
194 | ||
195 | if (ret) | |
196 | goto out1; | |
197 | } | |
198 | ||
199 | return 0; /* all done */ | |
200 | ||
201 | out1: | |
202 | if (sock->stschg_irq != -1) | |
203 | free_irq(sock->stschg_irq, sock); | |
204 | ||
205 | return ret; | |
206 | } | |
207 | ||
208 | static void db1x_pcmcia_free_irqs(struct db1x_pcmcia_sock *sock) | |
209 | { | |
210 | if (sock->stschg_irq != -1) | |
211 | free_irq(sock->stschg_irq, sock); | |
212 | ||
213 | free_irq(sock->insert_irq, sock); | |
214 | if (sock->eject_irq != -1) | |
215 | free_irq(sock->eject_irq, sock); | |
216 | } | |
217 | ||
218 | /* | |
219 | * configure a PCMCIA socket on the Db1x00 series of boards (and | |
220 | * compatibles). | |
221 | * | |
222 | * 2 external registers are involved: | |
223 | * pcmcia_status (offset 0x04): bits [0:1/2:3]: read card voltage id | |
224 | * pcmcia_control(offset 0x10): | |
225 | * bits[0:1] set vcc for card | |
226 | * bits[2:3] set vpp for card | |
227 | * bit 4: enable data buffers | |
228 | * bit 7: reset# for card | |
229 | * add 8 for second socket. | |
230 | */ | |
231 | static int db1x_pcmcia_configure(struct pcmcia_socket *skt, | |
232 | struct socket_state_t *state) | |
233 | { | |
234 | struct db1x_pcmcia_sock *sock = to_db1x_socket(skt); | |
235 | unsigned short cr_clr, cr_set; | |
236 | unsigned int changed; | |
237 | int v, p, ret; | |
238 | ||
239 | /* card voltage setup */ | |
240 | cr_clr = (0xf << (sock->nr * 8)); /* clear voltage settings */ | |
241 | cr_set = 0; | |
242 | v = p = ret = 0; | |
243 | ||
244 | switch (state->Vcc) { | |
245 | case 50: | |
246 | ++v; | |
247 | case 33: | |
248 | ++v; | |
249 | case 0: | |
250 | break; | |
251 | default: | |
252 | printk(KERN_INFO "pcmcia%d unsupported Vcc %d\n", | |
253 | sock->nr, state->Vcc); | |
254 | } | |
255 | ||
256 | switch (state->Vpp) { | |
257 | case 12: | |
258 | ++p; | |
259 | case 33: | |
260 | case 50: | |
261 | ++p; | |
262 | case 0: | |
263 | break; | |
264 | default: | |
265 | printk(KERN_INFO "pcmcia%d unsupported Vpp %d\n", | |
266 | sock->nr, state->Vpp); | |
267 | } | |
268 | ||
269 | /* sanity check: Vpp must be 0, 12, or Vcc */ | |
270 | if (((state->Vcc == 33) && (state->Vpp == 50)) || | |
271 | ((state->Vcc == 50) && (state->Vpp == 33))) { | |
272 | printk(KERN_INFO "pcmcia%d bad Vcc/Vpp combo (%d %d)\n", | |
273 | sock->nr, state->Vcc, state->Vpp); | |
274 | v = p = 0; | |
275 | ret = -EINVAL; | |
276 | } | |
277 | ||
278 | /* create new voltage code */ | |
279 | cr_set |= ((v << 2) | p) << (sock->nr * 8); | |
280 | ||
281 | changed = state->flags ^ sock->old_flags; | |
282 | ||
283 | if (changed & SS_RESET) { | |
284 | if (state->flags & SS_RESET) { | |
285 | set_stschg(sock, 0); | |
286 | /* assert reset, disable io buffers */ | |
287 | cr_clr |= (1 << (7 + (sock->nr * 8))); | |
288 | cr_clr |= (1 << (4 + (sock->nr * 8))); | |
289 | } else { | |
290 | /* de-assert reset, enable io buffers */ | |
291 | cr_set |= 1 << (7 + (sock->nr * 8)); | |
292 | cr_set |= 1 << (4 + (sock->nr * 8)); | |
293 | } | |
294 | } | |
295 | ||
296 | /* update PCMCIA configuration */ | |
297 | bcsr_mod(BCSR_PCMCIA, cr_clr, cr_set); | |
298 | ||
299 | sock->old_flags = state->flags; | |
300 | ||
301 | /* reset was taken away: give card time to initialize properly */ | |
302 | if ((changed & SS_RESET) && !(state->flags & SS_RESET)) { | |
303 | msleep(500); | |
304 | set_stschg(sock, 1); | |
305 | } | |
306 | ||
307 | return ret; | |
308 | } | |
309 | ||
310 | /* VCC bits at [3:2]/[11:10] */ | |
311 | #define GET_VCC(cr, socknr) \ | |
312 | ((((cr) >> 2) >> ((socknr) * 8)) & 3) | |
313 | ||
314 | /* VS bits at [0:1]/[3:2] */ | |
315 | #define GET_VS(sr, socknr) \ | |
316 | (((sr) >> (2 * (socknr))) & 3) | |
317 | ||
318 | /* reset bits at [7]/[15] */ | |
319 | #define GET_RESET(cr, socknr) \ | |
320 | ((cr) & (1 << (7 + (8 * (socknr))))) | |
321 | ||
322 | static int db1x_pcmcia_get_status(struct pcmcia_socket *skt, | |
323 | unsigned int *value) | |
324 | { | |
325 | struct db1x_pcmcia_sock *sock = to_db1x_socket(skt); | |
326 | unsigned short cr, sr; | |
327 | unsigned int status; | |
328 | ||
329 | status = db1x_card_inserted(sock) ? SS_DETECT : 0; | |
330 | ||
331 | cr = bcsr_read(BCSR_PCMCIA); | |
332 | sr = bcsr_read(BCSR_STATUS); | |
333 | ||
334 | /* PB1100/PB1500: voltage key bits are at [5:4] */ | |
335 | if (sock->board_type == BOARD_TYPE_PB1100) | |
336 | sr >>= 4; | |
337 | ||
338 | /* determine card type */ | |
339 | switch (GET_VS(sr, sock->nr)) { | |
340 | case 0: | |
341 | case 2: | |
342 | status |= SS_3VCARD; /* 3V card */ | |
343 | case 3: | |
344 | break; /* 5V card: set nothing */ | |
345 | default: | |
346 | status |= SS_XVCARD; /* treated as unsupported in core */ | |
347 | } | |
348 | ||
349 | /* if Vcc is not zero, we have applied power to a card */ | |
350 | status |= GET_VCC(cr, sock->nr) ? SS_POWERON : 0; | |
351 | ||
352 | /* reset de-asserted? then we're ready */ | |
353 | status |= (GET_RESET(cr, sock->nr)) ? SS_READY : SS_RESET; | |
354 | ||
355 | *value = status; | |
356 | ||
357 | return 0; | |
358 | } | |
359 | ||
360 | static int db1x_pcmcia_sock_init(struct pcmcia_socket *skt) | |
361 | { | |
362 | return 0; | |
363 | } | |
364 | ||
365 | static int db1x_pcmcia_sock_suspend(struct pcmcia_socket *skt) | |
366 | { | |
367 | return 0; | |
368 | } | |
369 | ||
370 | static int au1x00_pcmcia_set_io_map(struct pcmcia_socket *skt, | |
371 | struct pccard_io_map *map) | |
372 | { | |
373 | struct db1x_pcmcia_sock *sock = to_db1x_socket(skt); | |
374 | ||
375 | map->start = (u32)sock->virt_io; | |
376 | map->stop = map->start + IO_MAP_SIZE; | |
377 | ||
378 | return 0; | |
379 | } | |
380 | ||
381 | static int au1x00_pcmcia_set_mem_map(struct pcmcia_socket *skt, | |
382 | struct pccard_mem_map *map) | |
383 | { | |
384 | struct db1x_pcmcia_sock *sock = to_db1x_socket(skt); | |
385 | ||
386 | if (map->flags & MAP_ATTRIB) | |
387 | map->static_start = sock->phys_attr + map->card_start; | |
388 | else | |
389 | map->static_start = sock->phys_mem + map->card_start; | |
390 | ||
391 | return 0; | |
392 | } | |
393 | ||
394 | static struct pccard_operations db1x_pcmcia_operations = { | |
395 | .init = db1x_pcmcia_sock_init, | |
396 | .suspend = db1x_pcmcia_sock_suspend, | |
397 | .get_status = db1x_pcmcia_get_status, | |
398 | .set_socket = db1x_pcmcia_configure, | |
399 | .set_io_map = au1x00_pcmcia_set_io_map, | |
400 | .set_mem_map = au1x00_pcmcia_set_mem_map, | |
401 | }; | |
402 | ||
403 | static int __devinit db1x_pcmcia_socket_probe(struct platform_device *pdev) | |
404 | { | |
405 | struct db1x_pcmcia_sock *sock; | |
406 | struct resource *r; | |
66213b3c ML |
407 | int ret, bid; |
408 | ||
409 | sock = kzalloc(sizeof(struct db1x_pcmcia_sock), GFP_KERNEL); | |
410 | if (!sock) | |
411 | return -ENOMEM; | |
412 | ||
413 | sock->nr = pdev->id; | |
414 | ||
415 | bid = BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI)); | |
416 | switch (bid) { | |
417 | case BCSR_WHOAMI_PB1500: | |
418 | case BCSR_WHOAMI_PB1500R2: | |
419 | case BCSR_WHOAMI_PB1100: | |
420 | sock->board_type = BOARD_TYPE_PB1100; | |
421 | break; | |
422 | case BCSR_WHOAMI_DB1000 ... BCSR_WHOAMI_PB1550_SDR: | |
423 | sock->board_type = BOARD_TYPE_DEFAULT; | |
424 | break; | |
425 | case BCSR_WHOAMI_PB1200 ... BCSR_WHOAMI_DB1200: | |
426 | sock->board_type = BOARD_TYPE_DB1200; | |
427 | break; | |
428 | default: | |
429 | printk(KERN_INFO "db1xxx-ss: unknown board %d!\n", bid); | |
430 | ret = -ENODEV; | |
431 | goto out0; | |
432 | }; | |
433 | ||
434 | /* | |
435 | * gather resources necessary and optional nice-to-haves to | |
436 | * operate a socket: | |
437 | * This includes IRQs for Carddetection/ejection, the card | |
438 | * itself and optional status change detection. | |
439 | * Also, the memory areas covered by a socket. For these | |
440 | * we require the 32bit "pseudo" addresses (see the au1000.h | |
441 | * header for more information). | |
442 | */ | |
443 | ||
444 | /* card: irq assigned to the card itself. */ | |
445 | r = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "card"); | |
446 | sock->card_irq = r ? r->start : 0; | |
447 | ||
448 | /* insert: irq which triggers on card insertion/ejection */ | |
449 | r = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "insert"); | |
450 | sock->insert_irq = r ? r->start : -1; | |
451 | ||
452 | /* stschg: irq which trigger on card status change (optional) */ | |
453 | r = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "stschg"); | |
454 | sock->stschg_irq = r ? r->start : -1; | |
455 | ||
456 | /* eject: irq which triggers on ejection (DB1200/PB1200 only) */ | |
457 | r = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "eject"); | |
458 | sock->eject_irq = r ? r->start : -1; | |
459 | ||
460 | ret = -ENODEV; | |
461 | ||
462 | /* | |
463 | * pseudo-attr: The 32bit address of the PCMCIA attribute space | |
464 | * for this socket (usually the 36bit address shifted 4 to the | |
465 | * right). | |
466 | */ | |
11b897cf | 467 | r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pcmcia-attr"); |
66213b3c ML |
468 | if (!r) { |
469 | printk(KERN_ERR "pcmcia%d has no 'pseudo-attr' resource!\n", | |
470 | sock->nr); | |
471 | goto out0; | |
472 | } | |
473 | sock->phys_attr = r->start; | |
474 | ||
475 | /* | |
476 | * pseudo-mem: The 32bit address of the PCMCIA memory space for | |
477 | * this socket (usually the 36bit address shifted 4 to the right) | |
478 | */ | |
11b897cf | 479 | r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pcmcia-mem"); |
66213b3c ML |
480 | if (!r) { |
481 | printk(KERN_ERR "pcmcia%d has no 'pseudo-mem' resource!\n", | |
482 | sock->nr); | |
483 | goto out0; | |
484 | } | |
485 | sock->phys_mem = r->start; | |
486 | ||
487 | /* | |
488 | * pseudo-io: The 32bit address of the PCMCIA IO space for this | |
489 | * socket (usually the 36bit address shifted 4 to the right). | |
490 | */ | |
11b897cf | 491 | r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pcmcia-io"); |
66213b3c ML |
492 | if (!r) { |
493 | printk(KERN_ERR "pcmcia%d has no 'pseudo-io' resource!\n", | |
494 | sock->nr); | |
495 | goto out0; | |
496 | } | |
497 | sock->phys_io = r->start; | |
498 | ||
66213b3c ML |
499 | /* |
500 | * PCMCIA client drivers use the inb/outb macros to access | |
501 | * the IO registers. Since mips_io_port_base is added | |
502 | * to the access address of the mips implementation of | |
503 | * inb/outb, we need to subtract it here because we want | |
504 | * to access the I/O or MEM address directly, without | |
505 | * going through this "mips_io_port_base" mechanism. | |
506 | */ | |
11b897cf | 507 | sock->virt_io = (void *)(ioremap(sock->phys_io, IO_MAP_SIZE) - |
66213b3c ML |
508 | mips_io_port_base); |
509 | ||
510 | if (!sock->virt_io) { | |
511 | printk(KERN_ERR "pcmcia%d: cannot remap IO area\n", | |
512 | sock->nr); | |
513 | ret = -ENOMEM; | |
514 | goto out0; | |
515 | } | |
516 | ||
517 | sock->socket.ops = &db1x_pcmcia_operations; | |
518 | sock->socket.owner = THIS_MODULE; | |
519 | sock->socket.pci_irq = sock->card_irq; | |
520 | sock->socket.features = SS_CAP_STATIC_MAP | SS_CAP_PCCARD; | |
521 | sock->socket.map_size = MEM_MAP_SIZE; | |
522 | sock->socket.io_offset = (unsigned long)sock->virt_io; | |
523 | sock->socket.dev.parent = &pdev->dev; | |
524 | sock->socket.resource_ops = &pccard_static_ops; | |
525 | ||
526 | platform_set_drvdata(pdev, sock); | |
527 | ||
528 | ret = db1x_pcmcia_setup_irqs(sock); | |
529 | if (ret) { | |
530 | printk(KERN_ERR "pcmcia%d cannot setup interrupts\n", | |
531 | sock->nr); | |
532 | goto out1; | |
533 | } | |
534 | ||
535 | set_stschg(sock, 0); | |
536 | ||
537 | ret = pcmcia_register_socket(&sock->socket); | |
538 | if (ret) { | |
539 | printk(KERN_ERR "pcmcia%d failed to register\n", sock->nr); | |
540 | goto out2; | |
541 | } | |
542 | ||
11b897cf ML |
543 | printk(KERN_INFO "Alchemy Db/Pb1xxx pcmcia%d @ io/attr/mem %09llx" |
544 | "(%p) %09llx %09llx card/insert/stschg/eject irqs @ %d " | |
66213b3c ML |
545 | "%d %d %d\n", sock->nr, sock->phys_io, sock->virt_io, |
546 | sock->phys_attr, sock->phys_mem, sock->card_irq, | |
547 | sock->insert_irq, sock->stschg_irq, sock->eject_irq); | |
548 | ||
549 | return 0; | |
550 | ||
551 | out2: | |
552 | db1x_pcmcia_free_irqs(sock); | |
553 | out1: | |
554 | iounmap((void *)(sock->virt_io + (u32)mips_io_port_base)); | |
555 | out0: | |
556 | kfree(sock); | |
557 | return ret; | |
558 | } | |
559 | ||
560 | static int __devexit db1x_pcmcia_socket_remove(struct platform_device *pdev) | |
561 | { | |
562 | struct db1x_pcmcia_sock *sock = platform_get_drvdata(pdev); | |
563 | ||
564 | db1x_pcmcia_free_irqs(sock); | |
565 | pcmcia_unregister_socket(&sock->socket); | |
566 | iounmap((void *)(sock->virt_io + (u32)mips_io_port_base)); | |
567 | kfree(sock); | |
568 | ||
569 | return 0; | |
570 | } | |
571 | ||
572 | #ifdef CONFIG_PM | |
573 | static int db1x_pcmcia_suspend(struct device *dev) | |
574 | { | |
575 | return pcmcia_socket_dev_suspend(dev); | |
576 | } | |
577 | ||
578 | static int db1x_pcmcia_resume(struct device *dev) | |
579 | { | |
580 | return pcmcia_socket_dev_resume(dev); | |
581 | } | |
582 | ||
583 | static struct dev_pm_ops db1x_pcmcia_pmops = { | |
584 | .resume = db1x_pcmcia_resume, | |
585 | .suspend = db1x_pcmcia_suspend, | |
586 | .thaw = db1x_pcmcia_resume, | |
587 | .freeze = db1x_pcmcia_suspend, | |
588 | }; | |
589 | ||
590 | #define DB1XXX_SS_PMOPS &db1x_pcmcia_pmops | |
591 | ||
592 | #else | |
593 | ||
594 | #define DB1XXX_SS_PMOPS NULL | |
595 | ||
596 | #endif | |
597 | ||
598 | static struct platform_driver db1x_pcmcia_socket_driver = { | |
599 | .driver = { | |
600 | .name = "db1xxx_pcmcia", | |
601 | .owner = THIS_MODULE, | |
602 | .pm = DB1XXX_SS_PMOPS | |
603 | }, | |
604 | .probe = db1x_pcmcia_socket_probe, | |
605 | .remove = __devexit_p(db1x_pcmcia_socket_remove), | |
606 | }; | |
607 | ||
608 | int __init db1x_pcmcia_socket_load(void) | |
609 | { | |
610 | return platform_driver_register(&db1x_pcmcia_socket_driver); | |
611 | } | |
612 | ||
613 | void __exit db1x_pcmcia_socket_unload(void) | |
614 | { | |
615 | platform_driver_unregister(&db1x_pcmcia_socket_driver); | |
616 | } | |
617 | ||
618 | module_init(db1x_pcmcia_socket_load); | |
619 | module_exit(db1x_pcmcia_socket_unload); | |
620 | ||
621 | MODULE_LICENSE("GPL"); | |
622 | MODULE_DESCRIPTION("PCMCIA Socket Services for Alchemy Db/Pb1x00 boards"); | |
623 | MODULE_AUTHOR("Manuel Lauss"); |