Commit | Line | Data |
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5b435de0 AS |
1 | /* |
2 | * Copyright (c) 2010 Broadcom Corporation | |
3 | * | |
4 | * Permission to use, copy, modify, and/or distribute this software for any | |
5 | * purpose with or without fee is hereby granted, provided that the above | |
6 | * copyright notice and this permission notice appear in all copies. | |
7 | * | |
8 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES | |
9 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | |
10 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY | |
11 | * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |
12 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION | |
13 | * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN | |
14 | * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |
15 | */ | |
02f77195 JP |
16 | |
17 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt | |
18 | ||
5b435de0 AS |
19 | #include <linux/types.h> |
20 | #include <linux/netdevice.h> | |
21 | #include <linux/mmc/sdio.h> | |
22 | #include <linux/mmc/core.h> | |
23 | #include <linux/mmc/sdio_func.h> | |
24 | #include <linux/mmc/sdio_ids.h> | |
25 | #include <linux/mmc/card.h> | |
26 | #include <linux/suspend.h> | |
27 | #include <linux/errno.h> | |
28 | #include <linux/sched.h> /* request_irq() */ | |
b7a57e76 | 29 | #include <linux/module.h> |
5b435de0 AS |
30 | #include <net/cfg80211.h> |
31 | ||
32 | #include <defs.h> | |
33 | #include <brcm_hw_ids.h> | |
34 | #include <brcmu_utils.h> | |
35 | #include <brcmu_wifi.h> | |
36 | #include "sdio_host.h" | |
5b435de0 | 37 | #include "dhd_dbg.h" |
a8a363ac | 38 | #include "dhd_bus.h" |
5b435de0 AS |
39 | |
40 | #define SDIO_VENDOR_ID_BROADCOM 0x02d0 | |
41 | ||
42 | #define DMA_ALIGN_MASK 0x03 | |
43 | ||
44 | #define SDIO_DEVICE_ID_BROADCOM_4329 0x4329 | |
ce2d7d7e | 45 | #define SDIO_DEVICE_ID_BROADCOM_4330 0x4330 |
5b435de0 AS |
46 | |
47 | #define SDIO_FUNC1_BLOCKSIZE 64 | |
48 | #define SDIO_FUNC2_BLOCKSIZE 512 | |
49 | ||
50 | /* devices we support, null terminated */ | |
51 | static const struct sdio_device_id brcmf_sdmmc_ids[] = { | |
52 | {SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4329)}, | |
ce2d7d7e | 53 | {SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4330)}, |
5b435de0 AS |
54 | { /* end: all zeroes */ }, |
55 | }; | |
56 | MODULE_DEVICE_TABLE(sdio, brcmf_sdmmc_ids); | |
57 | ||
58 | static bool | |
59 | brcmf_pm_resume_error(struct brcmf_sdio_dev *sdiodev) | |
60 | { | |
61 | bool is_err = false; | |
62 | #ifdef CONFIG_PM_SLEEP | |
63 | is_err = atomic_read(&sdiodev->suspend); | |
64 | #endif | |
65 | return is_err; | |
66 | } | |
67 | ||
68 | static void | |
69 | brcmf_pm_resume_wait(struct brcmf_sdio_dev *sdiodev, wait_queue_head_t *wq) | |
70 | { | |
71 | #ifdef CONFIG_PM_SLEEP | |
72 | int retry = 0; | |
73 | while (atomic_read(&sdiodev->suspend) && retry++ != 30) | |
74 | wait_event_timeout(*wq, false, HZ/100); | |
75 | #endif | |
76 | } | |
77 | ||
78 | static inline int brcmf_sdioh_f0_write_byte(struct brcmf_sdio_dev *sdiodev, | |
79 | uint regaddr, u8 *byte) | |
80 | { | |
81 | struct sdio_func *sdfunc = sdiodev->func[0]; | |
82 | int err_ret; | |
83 | ||
84 | /* | |
85 | * Can only directly write to some F0 registers. | |
86 | * Handle F2 enable/disable and Abort command | |
87 | * as a special case. | |
88 | */ | |
89 | if (regaddr == SDIO_CCCR_IOEx) { | |
90 | sdfunc = sdiodev->func[2]; | |
91 | if (sdfunc) { | |
92 | sdio_claim_host(sdfunc); | |
93 | if (*byte & SDIO_FUNC_ENABLE_2) { | |
94 | /* Enable Function 2 */ | |
95 | err_ret = sdio_enable_func(sdfunc); | |
96 | if (err_ret) | |
97 | brcmf_dbg(ERROR, | |
98 | "enable F2 failed:%d\n", | |
99 | err_ret); | |
100 | } else { | |
101 | /* Disable Function 2 */ | |
102 | err_ret = sdio_disable_func(sdfunc); | |
103 | if (err_ret) | |
104 | brcmf_dbg(ERROR, | |
105 | "Disable F2 failed:%d\n", | |
106 | err_ret); | |
107 | } | |
108 | sdio_release_host(sdfunc); | |
109 | } | |
110 | } else if (regaddr == SDIO_CCCR_ABORT) { | |
111 | sdio_claim_host(sdfunc); | |
112 | sdio_writeb(sdfunc, *byte, regaddr, &err_ret); | |
113 | sdio_release_host(sdfunc); | |
114 | } else if (regaddr < 0xF0) { | |
115 | brcmf_dbg(ERROR, "F0 Wr:0x%02x: write disallowed\n", regaddr); | |
116 | err_ret = -EPERM; | |
117 | } else { | |
118 | sdio_claim_host(sdfunc); | |
119 | sdio_f0_writeb(sdfunc, *byte, regaddr, &err_ret); | |
120 | sdio_release_host(sdfunc); | |
121 | } | |
122 | ||
123 | return err_ret; | |
124 | } | |
125 | ||
126 | int brcmf_sdioh_request_byte(struct brcmf_sdio_dev *sdiodev, uint rw, uint func, | |
127 | uint regaddr, u8 *byte) | |
128 | { | |
129 | int err_ret; | |
130 | ||
131 | brcmf_dbg(INFO, "rw=%d, func=%d, addr=0x%05x\n", rw, func, regaddr); | |
132 | ||
133 | brcmf_pm_resume_wait(sdiodev, &sdiodev->request_byte_wait); | |
134 | if (brcmf_pm_resume_error(sdiodev)) | |
135 | return -EIO; | |
136 | ||
137 | if (rw && func == 0) { | |
138 | /* handle F0 separately */ | |
139 | err_ret = brcmf_sdioh_f0_write_byte(sdiodev, regaddr, byte); | |
140 | } else { | |
141 | sdio_claim_host(sdiodev->func[func]); | |
142 | if (rw) /* CMD52 Write */ | |
143 | sdio_writeb(sdiodev->func[func], *byte, regaddr, | |
144 | &err_ret); | |
145 | else if (func == 0) { | |
146 | *byte = sdio_f0_readb(sdiodev->func[func], regaddr, | |
147 | &err_ret); | |
148 | } else { | |
149 | *byte = sdio_readb(sdiodev->func[func], regaddr, | |
150 | &err_ret); | |
151 | } | |
152 | sdio_release_host(sdiodev->func[func]); | |
153 | } | |
154 | ||
155 | if (err_ret) | |
156 | brcmf_dbg(ERROR, "Failed to %s byte F%d:@0x%05x=%02x, Err: %d\n", | |
157 | rw ? "write" : "read", func, regaddr, *byte, err_ret); | |
158 | ||
159 | return err_ret; | |
160 | } | |
161 | ||
162 | int brcmf_sdioh_request_word(struct brcmf_sdio_dev *sdiodev, | |
163 | uint rw, uint func, uint addr, u32 *word, | |
164 | uint nbytes) | |
165 | { | |
166 | int err_ret = -EIO; | |
167 | ||
168 | if (func == 0) { | |
169 | brcmf_dbg(ERROR, "Only CMD52 allowed to F0\n"); | |
170 | return -EINVAL; | |
171 | } | |
172 | ||
173 | brcmf_dbg(INFO, "rw=%d, func=%d, addr=0x%05x, nbytes=%d\n", | |
174 | rw, func, addr, nbytes); | |
175 | ||
176 | brcmf_pm_resume_wait(sdiodev, &sdiodev->request_word_wait); | |
177 | if (brcmf_pm_resume_error(sdiodev)) | |
178 | return -EIO; | |
179 | /* Claim host controller */ | |
180 | sdio_claim_host(sdiodev->func[func]); | |
181 | ||
182 | if (rw) { /* CMD52 Write */ | |
183 | if (nbytes == 4) | |
184 | sdio_writel(sdiodev->func[func], *word, addr, | |
185 | &err_ret); | |
186 | else if (nbytes == 2) | |
187 | sdio_writew(sdiodev->func[func], (*word & 0xFFFF), | |
188 | addr, &err_ret); | |
189 | else | |
190 | brcmf_dbg(ERROR, "Invalid nbytes: %d\n", nbytes); | |
191 | } else { /* CMD52 Read */ | |
192 | if (nbytes == 4) | |
193 | *word = sdio_readl(sdiodev->func[func], addr, &err_ret); | |
194 | else if (nbytes == 2) | |
195 | *word = sdio_readw(sdiodev->func[func], addr, | |
196 | &err_ret) & 0xFFFF; | |
197 | else | |
198 | brcmf_dbg(ERROR, "Invalid nbytes: %d\n", nbytes); | |
199 | } | |
200 | ||
201 | /* Release host controller */ | |
202 | sdio_release_host(sdiodev->func[func]); | |
203 | ||
204 | if (err_ret) | |
205 | brcmf_dbg(ERROR, "Failed to %s word, Err: 0x%08x\n", | |
206 | rw ? "write" : "read", err_ret); | |
207 | ||
208 | return err_ret; | |
209 | } | |
210 | ||
5adfeb63 AS |
211 | /* precondition: host controller is claimed */ |
212 | static int | |
213 | brcmf_sdioh_request_data(struct brcmf_sdio_dev *sdiodev, uint write, bool fifo, | |
214 | uint func, uint addr, struct sk_buff *pkt, uint pktlen) | |
215 | { | |
216 | int err_ret = 0; | |
217 | ||
218 | if ((write) && (!fifo)) { | |
219 | err_ret = sdio_memcpy_toio(sdiodev->func[func], addr, | |
220 | ((u8 *) (pkt->data)), pktlen); | |
221 | } else if (write) { | |
222 | err_ret = sdio_memcpy_toio(sdiodev->func[func], addr, | |
223 | ((u8 *) (pkt->data)), pktlen); | |
224 | } else if (fifo) { | |
225 | err_ret = sdio_readsb(sdiodev->func[func], | |
226 | ((u8 *) (pkt->data)), addr, pktlen); | |
227 | } else { | |
228 | err_ret = sdio_memcpy_fromio(sdiodev->func[func], | |
229 | ((u8 *) (pkt->data)), | |
230 | addr, pktlen); | |
231 | } | |
232 | ||
233 | return err_ret; | |
234 | } | |
235 | ||
a52dd17d AS |
236 | /* |
237 | * This function takes a queue of packets. The packets on the queue | |
238 | * are assumed to be properly aligned by the caller. | |
239 | */ | |
5adfeb63 AS |
240 | int |
241 | brcmf_sdioh_request_chain(struct brcmf_sdio_dev *sdiodev, uint fix_inc, | |
242 | uint write, uint func, uint addr, | |
243 | struct sk_buff_head *pktq) | |
5b435de0 AS |
244 | { |
245 | bool fifo = (fix_inc == SDIOH_DATA_FIX); | |
246 | u32 SGCount = 0; | |
247 | int err_ret = 0; | |
248 | ||
5adfeb63 | 249 | struct sk_buff *pkt; |
5b435de0 AS |
250 | |
251 | brcmf_dbg(TRACE, "Enter\n"); | |
252 | ||
a52dd17d | 253 | brcmf_pm_resume_wait(sdiodev, &sdiodev->request_chain_wait); |
5b435de0 AS |
254 | if (brcmf_pm_resume_error(sdiodev)) |
255 | return -EIO; | |
256 | ||
257 | /* Claim host controller */ | |
258 | sdio_claim_host(sdiodev->func[func]); | |
5adfeb63 AS |
259 | |
260 | skb_queue_walk(pktq, pkt) { | |
261 | uint pkt_len = pkt->len; | |
5b435de0 AS |
262 | pkt_len += 3; |
263 | pkt_len &= 0xFFFFFFFC; | |
264 | ||
5adfeb63 AS |
265 | err_ret = brcmf_sdioh_request_data(sdiodev, write, fifo, func, |
266 | addr, pkt, pkt_len); | |
5b435de0 AS |
267 | if (err_ret) { |
268 | brcmf_dbg(ERROR, "%s FAILED %p[%d], addr=0x%05x, pkt_len=%d, ERR=0x%08x\n", | |
5adfeb63 | 269 | write ? "TX" : "RX", pkt, SGCount, addr, |
5b435de0 AS |
270 | pkt_len, err_ret); |
271 | } else { | |
272 | brcmf_dbg(TRACE, "%s xfr'd %p[%d], addr=0x%05x, len=%d\n", | |
5adfeb63 | 273 | write ? "TX" : "RX", pkt, SGCount, addr, |
5b435de0 AS |
274 | pkt_len); |
275 | } | |
5b435de0 AS |
276 | if (!fifo) |
277 | addr += pkt_len; | |
5b435de0 | 278 | |
5adfeb63 | 279 | SGCount++; |
5b435de0 AS |
280 | } |
281 | ||
282 | /* Release host controller */ | |
283 | sdio_release_host(sdiodev->func[func]); | |
284 | ||
285 | brcmf_dbg(TRACE, "Exit\n"); | |
286 | return err_ret; | |
287 | } | |
288 | ||
289 | /* | |
8054321b | 290 | * This function takes a single DMA-able packet. |
5b435de0 AS |
291 | */ |
292 | int brcmf_sdioh_request_buffer(struct brcmf_sdio_dev *sdiodev, | |
293 | uint fix_inc, uint write, uint func, uint addr, | |
4c6e869d | 294 | struct sk_buff *pkt) |
5b435de0 | 295 | { |
4c6e869d | 296 | int status; |
2315992c | 297 | uint pkt_len; |
8054321b | 298 | bool fifo = (fix_inc == SDIOH_DATA_FIX); |
5b435de0 AS |
299 | |
300 | brcmf_dbg(TRACE, "Enter\n"); | |
301 | ||
4c6e869d AS |
302 | if (pkt == NULL) |
303 | return -EINVAL; | |
2315992c | 304 | pkt_len = pkt->len; |
4c6e869d | 305 | |
5b435de0 AS |
306 | brcmf_pm_resume_wait(sdiodev, &sdiodev->request_buffer_wait); |
307 | if (brcmf_pm_resume_error(sdiodev)) | |
308 | return -EIO; | |
5b435de0 | 309 | |
8054321b AS |
310 | /* Claim host controller */ |
311 | sdio_claim_host(sdiodev->func[func]); | |
5b435de0 | 312 | |
8054321b AS |
313 | pkt_len += 3; |
314 | pkt_len &= (uint)~3; | |
5b435de0 | 315 | |
8054321b AS |
316 | status = brcmf_sdioh_request_data(sdiodev, write, fifo, func, |
317 | addr, pkt, pkt_len); | |
318 | if (status) { | |
319 | brcmf_dbg(ERROR, "%s FAILED %p, addr=0x%05x, pkt_len=%d, ERR=0x%08x\n", | |
320 | write ? "TX" : "RX", pkt, addr, pkt_len, status); | |
321 | } else { | |
322 | brcmf_dbg(TRACE, "%s xfr'd %p, addr=0x%05x, len=%d\n", | |
323 | write ? "TX" : "RX", pkt, addr, pkt_len); | |
5b435de0 AS |
324 | } |
325 | ||
8054321b AS |
326 | /* Release host controller */ |
327 | sdio_release_host(sdiodev->func[func]); | |
328 | ||
4c6e869d | 329 | return status; |
5b435de0 AS |
330 | } |
331 | ||
332 | /* Read client card reg */ | |
333 | static int | |
334 | brcmf_sdioh_card_regread(struct brcmf_sdio_dev *sdiodev, int func, u32 regaddr, | |
335 | int regsize, u32 *data) | |
336 | { | |
337 | ||
338 | if ((func == 0) || (regsize == 1)) { | |
339 | u8 temp = 0; | |
340 | ||
341 | brcmf_sdioh_request_byte(sdiodev, SDIOH_READ, func, regaddr, | |
342 | &temp); | |
343 | *data = temp; | |
344 | *data &= 0xff; | |
345 | brcmf_dbg(DATA, "byte read data=0x%02x\n", *data); | |
346 | } else { | |
347 | brcmf_sdioh_request_word(sdiodev, SDIOH_READ, func, regaddr, | |
348 | data, regsize); | |
349 | if (regsize == 2) | |
350 | *data &= 0xffff; | |
351 | ||
352 | brcmf_dbg(DATA, "word read data=0x%08x\n", *data); | |
353 | } | |
354 | ||
355 | return SUCCESS; | |
356 | } | |
357 | ||
358 | static int brcmf_sdioh_get_cisaddr(struct brcmf_sdio_dev *sdiodev, u32 regaddr) | |
359 | { | |
360 | /* read 24 bits and return valid 17 bit addr */ | |
361 | int i; | |
362 | u32 scratch, regdata; | |
363 | __le32 scratch_le; | |
364 | u8 *ptr = (u8 *)&scratch_le; | |
365 | ||
366 | for (i = 0; i < 3; i++) { | |
367 | if ((brcmf_sdioh_card_regread(sdiodev, 0, regaddr, 1, | |
368 | ®data)) != SUCCESS) | |
369 | brcmf_dbg(ERROR, "Can't read!\n"); | |
370 | ||
371 | *ptr++ = (u8) regdata; | |
372 | regaddr++; | |
373 | } | |
374 | ||
375 | /* Only the lower 17-bits are valid */ | |
376 | scratch = le32_to_cpu(scratch_le); | |
377 | scratch &= 0x0001FFFF; | |
378 | return scratch; | |
379 | } | |
380 | ||
381 | static int brcmf_sdioh_enablefuncs(struct brcmf_sdio_dev *sdiodev) | |
382 | { | |
383 | int err_ret; | |
384 | u32 fbraddr; | |
385 | u8 func; | |
386 | ||
387 | brcmf_dbg(TRACE, "\n"); | |
388 | ||
389 | /* Get the Card's common CIS address */ | |
390 | sdiodev->func_cis_ptr[0] = brcmf_sdioh_get_cisaddr(sdiodev, | |
391 | SDIO_CCCR_CIS); | |
392 | brcmf_dbg(INFO, "Card's Common CIS Ptr = 0x%x\n", | |
393 | sdiodev->func_cis_ptr[0]); | |
394 | ||
395 | /* Get the Card's function CIS (for each function) */ | |
396 | for (fbraddr = SDIO_FBR_BASE(1), func = 1; | |
397 | func <= sdiodev->num_funcs; func++, fbraddr += SDIOD_FBR_SIZE) { | |
398 | sdiodev->func_cis_ptr[func] = | |
399 | brcmf_sdioh_get_cisaddr(sdiodev, SDIO_FBR_CIS + fbraddr); | |
400 | brcmf_dbg(INFO, "Function %d CIS Ptr = 0x%x\n", | |
401 | func, sdiodev->func_cis_ptr[func]); | |
402 | } | |
403 | ||
404 | /* Enable Function 1 */ | |
405 | sdio_claim_host(sdiodev->func[1]); | |
406 | err_ret = sdio_enable_func(sdiodev->func[1]); | |
407 | sdio_release_host(sdiodev->func[1]); | |
408 | if (err_ret) | |
409 | brcmf_dbg(ERROR, "Failed to enable F1 Err: 0x%08x\n", err_ret); | |
410 | ||
411 | return false; | |
412 | } | |
413 | ||
414 | /* | |
415 | * Public entry points & extern's | |
416 | */ | |
417 | int brcmf_sdioh_attach(struct brcmf_sdio_dev *sdiodev) | |
418 | { | |
419 | int err_ret = 0; | |
420 | ||
421 | brcmf_dbg(TRACE, "\n"); | |
422 | ||
423 | sdiodev->num_funcs = 2; | |
424 | ||
425 | sdio_claim_host(sdiodev->func[1]); | |
426 | err_ret = sdio_set_block_size(sdiodev->func[1], SDIO_FUNC1_BLOCKSIZE); | |
427 | sdio_release_host(sdiodev->func[1]); | |
428 | if (err_ret) { | |
429 | brcmf_dbg(ERROR, "Failed to set F1 blocksize\n"); | |
430 | goto out; | |
431 | } | |
432 | ||
433 | sdio_claim_host(sdiodev->func[2]); | |
434 | err_ret = sdio_set_block_size(sdiodev->func[2], SDIO_FUNC2_BLOCKSIZE); | |
435 | sdio_release_host(sdiodev->func[2]); | |
436 | if (err_ret) { | |
437 | brcmf_dbg(ERROR, "Failed to set F2 blocksize\n"); | |
438 | goto out; | |
439 | } | |
440 | ||
441 | brcmf_sdioh_enablefuncs(sdiodev); | |
442 | ||
443 | out: | |
444 | brcmf_dbg(TRACE, "Done\n"); | |
445 | return err_ret; | |
446 | } | |
447 | ||
448 | void brcmf_sdioh_detach(struct brcmf_sdio_dev *sdiodev) | |
449 | { | |
450 | brcmf_dbg(TRACE, "\n"); | |
451 | ||
452 | /* Disable Function 2 */ | |
453 | sdio_claim_host(sdiodev->func[2]); | |
454 | sdio_disable_func(sdiodev->func[2]); | |
455 | sdio_release_host(sdiodev->func[2]); | |
456 | ||
457 | /* Disable Function 1 */ | |
458 | sdio_claim_host(sdiodev->func[1]); | |
459 | sdio_disable_func(sdiodev->func[1]); | |
460 | sdio_release_host(sdiodev->func[1]); | |
461 | ||
462 | } | |
463 | ||
464 | static int brcmf_ops_sdio_probe(struct sdio_func *func, | |
465 | const struct sdio_device_id *id) | |
466 | { | |
467 | int ret = 0; | |
468 | struct brcmf_sdio_dev *sdiodev; | |
655713be | 469 | struct brcmf_bus *bus_if; |
5b435de0 AS |
470 | brcmf_dbg(TRACE, "Enter\n"); |
471 | brcmf_dbg(TRACE, "func->class=%x\n", func->class); | |
472 | brcmf_dbg(TRACE, "sdio_vendor: 0x%04x\n", func->vendor); | |
473 | brcmf_dbg(TRACE, "sdio_device: 0x%04x\n", func->device); | |
474 | brcmf_dbg(TRACE, "Function#: 0x%04x\n", func->num); | |
475 | ||
476 | if (func->num == 1) { | |
477 | if (dev_get_drvdata(&func->card->dev)) { | |
478 | brcmf_dbg(ERROR, "card private drvdata occupied\n"); | |
479 | return -ENXIO; | |
480 | } | |
655713be FL |
481 | bus_if = kzalloc(sizeof(struct brcmf_bus), GFP_KERNEL); |
482 | if (!bus_if) | |
483 | return -ENOMEM; | |
5b435de0 | 484 | sdiodev = kzalloc(sizeof(struct brcmf_sdio_dev), GFP_KERNEL); |
ad9547c0 DC |
485 | if (!sdiodev) { |
486 | kfree(bus_if); | |
5b435de0 | 487 | return -ENOMEM; |
ad9547c0 | 488 | } |
5b435de0 AS |
489 | sdiodev->func[0] = func->card->sdio_func[0]; |
490 | sdiodev->func[1] = func; | |
d76d1c8c | 491 | sdiodev->bus_if = bus_if; |
0a332e46 | 492 | bus_if->bus_priv.sdio = sdiodev; |
655713be | 493 | bus_if->type = SDIO_BUS; |
6e3c7128 | 494 | bus_if->align = BRCMF_SDALIGN; |
d76d1c8c | 495 | dev_set_drvdata(&func->card->dev, sdiodev); |
5b435de0 AS |
496 | |
497 | atomic_set(&sdiodev->suspend, false); | |
498 | init_waitqueue_head(&sdiodev->request_byte_wait); | |
499 | init_waitqueue_head(&sdiodev->request_word_wait); | |
a52dd17d | 500 | init_waitqueue_head(&sdiodev->request_chain_wait); |
5b435de0 AS |
501 | init_waitqueue_head(&sdiodev->request_buffer_wait); |
502 | } | |
503 | ||
504 | if (func->num == 2) { | |
d76d1c8c | 505 | sdiodev = dev_get_drvdata(&func->card->dev); |
5b435de0 AS |
506 | if ((!sdiodev) || (sdiodev->func[1]->card != func->card)) |
507 | return -ENODEV; | |
508 | sdiodev->func[2] = func; | |
509 | ||
d76d1c8c FL |
510 | bus_if = sdiodev->bus_if; |
511 | sdiodev->dev = &func->dev; | |
512 | dev_set_drvdata(&func->dev, bus_if); | |
513 | ||
5b435de0 AS |
514 | brcmf_dbg(TRACE, "F2 found, calling brcmf_sdio_probe...\n"); |
515 | ret = brcmf_sdio_probe(sdiodev); | |
516 | } | |
517 | ||
518 | return ret; | |
519 | } | |
520 | ||
521 | static void brcmf_ops_sdio_remove(struct sdio_func *func) | |
522 | { | |
655713be | 523 | struct brcmf_bus *bus_if; |
5b435de0 AS |
524 | struct brcmf_sdio_dev *sdiodev; |
525 | brcmf_dbg(TRACE, "Enter\n"); | |
526 | brcmf_dbg(INFO, "func->class=%x\n", func->class); | |
527 | brcmf_dbg(INFO, "sdio_vendor: 0x%04x\n", func->vendor); | |
528 | brcmf_dbg(INFO, "sdio_device: 0x%04x\n", func->device); | |
529 | brcmf_dbg(INFO, "Function#: 0x%04x\n", func->num); | |
530 | ||
531 | if (func->num == 2) { | |
d76d1c8c | 532 | bus_if = dev_get_drvdata(&func->dev); |
0a332e46 | 533 | sdiodev = bus_if->bus_priv.sdio; |
5b435de0 AS |
534 | brcmf_dbg(TRACE, "F2 found, calling brcmf_sdio_remove...\n"); |
535 | brcmf_sdio_remove(sdiodev); | |
536 | dev_set_drvdata(&func->card->dev, NULL); | |
d76d1c8c | 537 | dev_set_drvdata(&func->dev, NULL); |
655713be | 538 | kfree(bus_if); |
5b435de0 AS |
539 | kfree(sdiodev); |
540 | } | |
541 | } | |
542 | ||
543 | #ifdef CONFIG_PM_SLEEP | |
544 | static int brcmf_sdio_suspend(struct device *dev) | |
545 | { | |
546 | mmc_pm_flag_t sdio_flags; | |
5b435de0 | 547 | struct sdio_func *func = dev_to_sdio_func(dev); |
d76d1c8c | 548 | struct brcmf_sdio_dev *sdiodev = dev_get_drvdata(&func->card->dev); |
5b435de0 AS |
549 | int ret = 0; |
550 | ||
551 | brcmf_dbg(TRACE, "\n"); | |
552 | ||
5b435de0 AS |
553 | atomic_set(&sdiodev->suspend, true); |
554 | ||
555 | sdio_flags = sdio_get_host_pm_caps(sdiodev->func[1]); | |
556 | if (!(sdio_flags & MMC_PM_KEEP_POWER)) { | |
557 | brcmf_dbg(ERROR, "Host can't keep power while suspended\n"); | |
558 | return -EINVAL; | |
559 | } | |
560 | ||
561 | ret = sdio_set_host_pm_flags(sdiodev->func[1], MMC_PM_KEEP_POWER); | |
562 | if (ret) { | |
563 | brcmf_dbg(ERROR, "Failed to set pm_flags\n"); | |
564 | return ret; | |
565 | } | |
566 | ||
567 | brcmf_sdio_wdtmr_enable(sdiodev, false); | |
568 | ||
569 | return ret; | |
570 | } | |
571 | ||
572 | static int brcmf_sdio_resume(struct device *dev) | |
573 | { | |
5b435de0 | 574 | struct sdio_func *func = dev_to_sdio_func(dev); |
d76d1c8c | 575 | struct brcmf_sdio_dev *sdiodev = dev_get_drvdata(&func->card->dev); |
5b435de0 | 576 | |
5b435de0 AS |
577 | brcmf_sdio_wdtmr_enable(sdiodev, true); |
578 | atomic_set(&sdiodev->suspend, false); | |
579 | return 0; | |
580 | } | |
581 | ||
582 | static const struct dev_pm_ops brcmf_sdio_pm_ops = { | |
583 | .suspend = brcmf_sdio_suspend, | |
584 | .resume = brcmf_sdio_resume, | |
585 | }; | |
586 | #endif /* CONFIG_PM_SLEEP */ | |
587 | ||
588 | static struct sdio_driver brcmf_sdmmc_driver = { | |
589 | .probe = brcmf_ops_sdio_probe, | |
590 | .remove = brcmf_ops_sdio_remove, | |
591 | .name = "brcmfmac", | |
592 | .id_table = brcmf_sdmmc_ids, | |
593 | #ifdef CONFIG_PM_SLEEP | |
594 | .drv = { | |
595 | .pm = &brcmf_sdio_pm_ops, | |
596 | }, | |
597 | #endif /* CONFIG_PM_SLEEP */ | |
598 | }; | |
599 | ||
f3d7cdc3 | 600 | void brcmf_sdio_exit(void) |
5b435de0 AS |
601 | { |
602 | brcmf_dbg(TRACE, "Enter\n"); | |
603 | ||
3392c888 | 604 | sdio_unregister_driver(&brcmf_sdmmc_driver); |
5b435de0 AS |
605 | } |
606 | ||
549040ab | 607 | void brcmf_sdio_init(void) |
5b435de0 | 608 | { |
3392c888 FL |
609 | int ret; |
610 | ||
5b435de0 AS |
611 | brcmf_dbg(TRACE, "Enter\n"); |
612 | ||
3392c888 FL |
613 | ret = sdio_register_driver(&brcmf_sdmmc_driver); |
614 | ||
615 | if (ret) | |
616 | brcmf_dbg(ERROR, "sdio_register_driver failed: %d\n", ret); | |
5b435de0 | 617 | } |