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 | */ | |
16 | /* ****************** SDIO CARD Interface Functions **************************/ | |
17 | ||
18 | #include <linux/types.h> | |
19 | #include <linux/netdevice.h> | |
ee40fa06 | 20 | #include <linux/export.h> |
5b435de0 AS |
21 | #include <linux/pci.h> |
22 | #include <linux/pci_ids.h> | |
23 | #include <linux/sched.h> | |
24 | #include <linux/completion.h> | |
25 | #include <linux/mmc/sdio.h> | |
26 | #include <linux/mmc/sdio_func.h> | |
27 | #include <linux/mmc/card.h> | |
28 | ||
29 | #include <defs.h> | |
30 | #include <brcm_hw_ids.h> | |
31 | #include <brcmu_utils.h> | |
32 | #include <brcmu_wifi.h> | |
33 | #include <soc.h> | |
5b435de0 AS |
34 | #include "dhd_bus.h" |
35 | #include "dhd_dbg.h" | |
36 | #include "sdio_host.h" | |
37 | ||
38 | #define SDIOH_API_ACCESS_RETRY_LIMIT 2 | |
39 | ||
ba89bf19 FL |
40 | #ifdef CONFIG_BRCMFMAC_SDIO_OOB |
41 | static irqreturn_t brcmf_sdio_irqhandler(int irq, void *dev_id) | |
42 | { | |
5b3c1832 HM |
43 | struct brcmf_bus *bus_if = dev_get_drvdata(dev_id); |
44 | struct brcmf_sdio_dev *sdiodev = bus_if->bus_priv.sdio; | |
ba89bf19 FL |
45 | |
46 | brcmf_dbg(INTR, "oob intr triggered\n"); | |
47 | ||
48 | /* | |
49 | * out-of-band interrupt is level-triggered which won't | |
50 | * be cleared until dpc | |
51 | */ | |
52 | if (sdiodev->irq_en) { | |
53 | disable_irq_nosync(irq); | |
54 | sdiodev->irq_en = false; | |
55 | } | |
56 | ||
57 | brcmf_sdbrcm_isr(sdiodev->bus); | |
58 | ||
59 | return IRQ_HANDLED; | |
60 | } | |
61 | ||
62 | int brcmf_sdio_intr_register(struct brcmf_sdio_dev *sdiodev) | |
63 | { | |
64 | int ret = 0; | |
65 | u8 data; | |
66 | unsigned long flags; | |
67 | ||
c3203374 | 68 | brcmf_dbg(SDIO, "Entering: irq %d\n", sdiodev->irq); |
ba89bf19 | 69 | |
ba89bf19 FL |
70 | ret = request_irq(sdiodev->irq, brcmf_sdio_irqhandler, |
71 | sdiodev->irq_flags, "brcmf_oob_intr", | |
5b3c1832 | 72 | &sdiodev->func[1]->dev); |
ba89bf19 FL |
73 | if (ret != 0) |
74 | return ret; | |
75 | spin_lock_init(&sdiodev->irq_en_lock); | |
76 | spin_lock_irqsave(&sdiodev->irq_en_lock, flags); | |
77 | sdiodev->irq_en = true; | |
78 | spin_unlock_irqrestore(&sdiodev->irq_en_lock, flags); | |
79 | ||
80 | ret = enable_irq_wake(sdiodev->irq); | |
81 | if (ret != 0) | |
82 | return ret; | |
83 | sdiodev->irq_wake = true; | |
84 | ||
38b0b0dd FL |
85 | sdio_claim_host(sdiodev->func[1]); |
86 | ||
ba89bf19 | 87 | /* must configure SDIO_CCCR_IENx to enable irq */ |
45db339c | 88 | data = brcmf_sdio_regrb(sdiodev, SDIO_CCCR_IENx, &ret); |
ba89bf19 | 89 | data |= 1 << SDIO_FUNC_1 | 1 << SDIO_FUNC_2 | 1; |
3bba829f | 90 | brcmf_sdio_regwb(sdiodev, SDIO_CCCR_IENx, data, &ret); |
ba89bf19 | 91 | |
f304a993 | 92 | /* redirect, configure and enable io for interrupt signal */ |
ba89bf19 | 93 | data = SDIO_SEPINT_MASK | SDIO_SEPINT_OE; |
f304a993 | 94 | if (sdiodev->irq_flags & IRQF_TRIGGER_HIGH) |
ba89bf19 | 95 | data |= SDIO_SEPINT_ACT_HI; |
3bba829f | 96 | brcmf_sdio_regwb(sdiodev, SDIO_CCCR_BRCM_SEPINT, data, &ret); |
ba89bf19 | 97 | |
38b0b0dd FL |
98 | sdio_release_host(sdiodev->func[1]); |
99 | ||
ba89bf19 FL |
100 | return 0; |
101 | } | |
102 | ||
103 | int brcmf_sdio_intr_unregister(struct brcmf_sdio_dev *sdiodev) | |
104 | { | |
c3203374 | 105 | brcmf_dbg(SDIO, "Entering\n"); |
ba89bf19 | 106 | |
38b0b0dd | 107 | sdio_claim_host(sdiodev->func[1]); |
3bba829f FL |
108 | brcmf_sdio_regwb(sdiodev, SDIO_CCCR_BRCM_SEPINT, 0, NULL); |
109 | brcmf_sdio_regwb(sdiodev, SDIO_CCCR_IENx, 0, NULL); | |
38b0b0dd | 110 | sdio_release_host(sdiodev->func[1]); |
ba89bf19 FL |
111 | |
112 | if (sdiodev->irq_wake) { | |
113 | disable_irq_wake(sdiodev->irq); | |
114 | sdiodev->irq_wake = false; | |
115 | } | |
5b3c1832 | 116 | free_irq(sdiodev->irq, &sdiodev->func[1]->dev); |
ba89bf19 FL |
117 | sdiodev->irq_en = false; |
118 | ||
119 | return 0; | |
120 | } | |
121 | #else /* CONFIG_BRCMFMAC_SDIO_OOB */ | |
122 | static void brcmf_sdio_irqhandler(struct sdio_func *func) | |
5b435de0 | 123 | { |
5b3c1832 HM |
124 | struct brcmf_bus *bus_if = dev_get_drvdata(&func->dev); |
125 | struct brcmf_sdio_dev *sdiodev = bus_if->bus_priv.sdio; | |
5b435de0 | 126 | |
ba89bf19 | 127 | brcmf_dbg(INTR, "ib intr triggered\n"); |
5b435de0 | 128 | |
5b435de0 | 129 | brcmf_sdbrcm_isr(sdiodev->bus); |
5b435de0 AS |
130 | } |
131 | ||
fbf59108 | 132 | /* dummy handler for SDIO function 2 interrupt */ |
ba89bf19 | 133 | static void brcmf_sdio_dummy_irqhandler(struct sdio_func *func) |
fbf59108 FL |
134 | { |
135 | } | |
136 | ||
ba89bf19 | 137 | int brcmf_sdio_intr_register(struct brcmf_sdio_dev *sdiodev) |
5b435de0 | 138 | { |
c3203374 | 139 | brcmf_dbg(SDIO, "Entering\n"); |
5b435de0 AS |
140 | |
141 | sdio_claim_host(sdiodev->func[1]); | |
ba89bf19 FL |
142 | sdio_claim_irq(sdiodev->func[1], brcmf_sdio_irqhandler); |
143 | sdio_claim_irq(sdiodev->func[2], brcmf_sdio_dummy_irqhandler); | |
5b435de0 AS |
144 | sdio_release_host(sdiodev->func[1]); |
145 | ||
146 | return 0; | |
147 | } | |
148 | ||
ba89bf19 | 149 | int brcmf_sdio_intr_unregister(struct brcmf_sdio_dev *sdiodev) |
5b435de0 | 150 | { |
c3203374 | 151 | brcmf_dbg(SDIO, "Entering\n"); |
5b435de0 AS |
152 | |
153 | sdio_claim_host(sdiodev->func[1]); | |
fbf59108 | 154 | sdio_release_irq(sdiodev->func[2]); |
5b435de0 AS |
155 | sdio_release_irq(sdiodev->func[1]); |
156 | sdio_release_host(sdiodev->func[1]); | |
157 | ||
158 | return 0; | |
159 | } | |
ba89bf19 | 160 | #endif /* CONFIG_BRCMFMAC_SDIO_OOB */ |
5b435de0 | 161 | |
5b435de0 AS |
162 | int |
163 | brcmf_sdcard_set_sbaddr_window(struct brcmf_sdio_dev *sdiodev, u32 address) | |
164 | { | |
7d9cfc28 FL |
165 | int err = 0, i; |
166 | u8 addr[3]; | |
167 | s32 retry; | |
168 | ||
169 | addr[0] = (address >> 8) & SBSDIO_SBADDRLOW_MASK; | |
170 | addr[1] = (address >> 16) & SBSDIO_SBADDRMID_MASK; | |
171 | addr[2] = (address >> 24) & SBSDIO_SBADDRHIGH_MASK; | |
172 | ||
173 | for (i = 0; i < 3; i++) { | |
174 | retry = 0; | |
175 | do { | |
176 | if (retry) | |
177 | usleep_range(1000, 2000); | |
178 | err = brcmf_sdioh_request_byte(sdiodev, SDIOH_WRITE, | |
179 | SDIO_FUNC_1, SBSDIO_FUNC1_SBADDRLOW + i, | |
180 | &addr[i]); | |
181 | } while (err != 0 && retry++ < SDIOH_API_ACCESS_RETRY_LIMIT); | |
182 | ||
183 | if (err) { | |
5e8149f5 | 184 | brcmf_err("failed at addr:0x%0x\n", |
7d9cfc28 FL |
185 | SBSDIO_FUNC1_SBADDRLOW + i); |
186 | break; | |
187 | } | |
188 | } | |
5b435de0 AS |
189 | |
190 | return err; | |
191 | } | |
192 | ||
4531603a | 193 | int |
e9b8d91d FL |
194 | brcmf_sdio_regrw_helper(struct brcmf_sdio_dev *sdiodev, u32 addr, |
195 | void *data, bool write) | |
196 | { | |
197 | u8 func_num, reg_size; | |
198 | u32 bar; | |
199 | s32 retry = 0; | |
200 | int ret; | |
201 | ||
202 | /* | |
203 | * figure out how to read the register based on address range | |
d8b3fc59 | 204 | * 0x00 ~ 0x7FF: function 0 CCCR and FBR |
e9b8d91d FL |
205 | * 0x10000 ~ 0x1FFFF: function 1 miscellaneous registers |
206 | * The rest: function 1 silicon backplane core registers | |
207 | */ | |
d8b3fc59 | 208 | if ((addr & ~REG_F0_REG_MASK) == 0) { |
e9b8d91d FL |
209 | func_num = SDIO_FUNC_0; |
210 | reg_size = 1; | |
211 | } else if ((addr & ~REG_F1_MISC_MASK) == 0) { | |
212 | func_num = SDIO_FUNC_1; | |
213 | reg_size = 1; | |
214 | } else { | |
215 | func_num = SDIO_FUNC_1; | |
216 | reg_size = 4; | |
217 | ||
218 | /* Set the window for SB core register */ | |
219 | bar = addr & ~SBSDIO_SB_OFT_ADDR_MASK; | |
220 | if (bar != sdiodev->sbwad) { | |
221 | ret = brcmf_sdcard_set_sbaddr_window(sdiodev, bar); | |
222 | if (ret != 0) { | |
223 | memset(data, 0xFF, reg_size); | |
224 | return ret; | |
225 | } | |
226 | sdiodev->sbwad = bar; | |
227 | } | |
228 | addr &= SBSDIO_SB_OFT_ADDR_MASK; | |
229 | addr |= SBSDIO_SB_ACCESS_2_4B_FLAG; | |
230 | } | |
231 | ||
232 | do { | |
233 | if (!write) | |
234 | memset(data, 0, reg_size); | |
235 | if (retry) /* wait for 1 ms till bus get settled down */ | |
236 | usleep_range(1000, 2000); | |
237 | if (reg_size == 1) | |
238 | ret = brcmf_sdioh_request_byte(sdiodev, write, | |
239 | func_num, addr, data); | |
240 | else | |
241 | ret = brcmf_sdioh_request_word(sdiodev, write, | |
242 | func_num, addr, data, 4); | |
243 | } while (ret != 0 && retry++ < SDIOH_API_ACCESS_RETRY_LIMIT); | |
244 | ||
5c15c23a | 245 | if (ret != 0) |
5e8149f5 | 246 | brcmf_err("failed with %d\n", ret); |
e9b8d91d FL |
247 | |
248 | return ret; | |
249 | } | |
250 | ||
251 | u8 brcmf_sdio_regrb(struct brcmf_sdio_dev *sdiodev, u32 addr, int *ret) | |
252 | { | |
253 | u8 data; | |
254 | int retval; | |
255 | ||
c3203374 | 256 | brcmf_dbg(SDIO, "addr:0x%08x\n", addr); |
e9b8d91d | 257 | retval = brcmf_sdio_regrw_helper(sdiodev, addr, &data, false); |
c3203374 | 258 | brcmf_dbg(SDIO, "data:0x%02x\n", data); |
e9b8d91d FL |
259 | |
260 | if (ret) | |
261 | *ret = retval; | |
262 | ||
263 | return data; | |
264 | } | |
265 | ||
266 | u32 brcmf_sdio_regrl(struct brcmf_sdio_dev *sdiodev, u32 addr, int *ret) | |
267 | { | |
268 | u32 data; | |
269 | int retval; | |
270 | ||
c3203374 | 271 | brcmf_dbg(SDIO, "addr:0x%08x\n", addr); |
e9b8d91d | 272 | retval = brcmf_sdio_regrw_helper(sdiodev, addr, &data, false); |
c3203374 | 273 | brcmf_dbg(SDIO, "data:0x%08x\n", data); |
e9b8d91d FL |
274 | |
275 | if (ret) | |
276 | *ret = retval; | |
277 | ||
278 | return data; | |
279 | } | |
280 | ||
281 | void brcmf_sdio_regwb(struct brcmf_sdio_dev *sdiodev, u32 addr, | |
282 | u8 data, int *ret) | |
283 | { | |
284 | int retval; | |
285 | ||
c3203374 | 286 | brcmf_dbg(SDIO, "addr:0x%08x, data:0x%02x\n", addr, data); |
e9b8d91d FL |
287 | retval = brcmf_sdio_regrw_helper(sdiodev, addr, &data, true); |
288 | ||
289 | if (ret) | |
290 | *ret = retval; | |
291 | } | |
292 | ||
293 | void brcmf_sdio_regwl(struct brcmf_sdio_dev *sdiodev, u32 addr, | |
294 | u32 data, int *ret) | |
295 | { | |
296 | int retval; | |
297 | ||
c3203374 | 298 | brcmf_dbg(SDIO, "addr:0x%08x, data:0x%08x\n", addr, data); |
e9b8d91d FL |
299 | retval = brcmf_sdio_regrw_helper(sdiodev, addr, &data, true); |
300 | ||
301 | if (ret) | |
302 | *ret = retval; | |
303 | } | |
304 | ||
5adfeb63 AS |
305 | static int brcmf_sdcard_recv_prepare(struct brcmf_sdio_dev *sdiodev, uint fn, |
306 | uint flags, uint width, u32 *addr) | |
5b435de0 | 307 | { |
5adfeb63 | 308 | uint bar0 = *addr & ~SBSDIO_SB_OFT_ADDR_MASK; |
5b435de0 AS |
309 | int err = 0; |
310 | ||
5b435de0 AS |
311 | /* Async not implemented yet */ |
312 | if (flags & SDIO_REQ_ASYNC) | |
313 | return -ENOTSUPP; | |
314 | ||
315 | if (bar0 != sdiodev->sbwad) { | |
316 | err = brcmf_sdcard_set_sbaddr_window(sdiodev, bar0); | |
317 | if (err) | |
318 | return err; | |
319 | ||
320 | sdiodev->sbwad = bar0; | |
321 | } | |
322 | ||
5adfeb63 AS |
323 | *addr &= SBSDIO_SB_OFT_ADDR_MASK; |
324 | ||
325 | if (width == 4) | |
326 | *addr |= SBSDIO_SB_ACCESS_2_4B_FLAG; | |
327 | ||
328 | return 0; | |
329 | } | |
330 | ||
331 | int | |
332 | brcmf_sdcard_recv_buf(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn, | |
333 | uint flags, u8 *buf, uint nbytes) | |
334 | { | |
335 | struct sk_buff *mypkt; | |
336 | int err; | |
337 | ||
338 | mypkt = brcmu_pkt_buf_get_skb(nbytes); | |
339 | if (!mypkt) { | |
5e8149f5 | 340 | brcmf_err("brcmu_pkt_buf_get_skb failed: len %d\n", |
5adfeb63 AS |
341 | nbytes); |
342 | return -EIO; | |
343 | } | |
344 | ||
345 | err = brcmf_sdcard_recv_pkt(sdiodev, addr, fn, flags, mypkt); | |
346 | if (!err) | |
347 | memcpy(buf, mypkt->data, nbytes); | |
348 | ||
349 | brcmu_pkt_buf_free_skb(mypkt); | |
350 | return err; | |
351 | } | |
352 | ||
353 | int | |
354 | brcmf_sdcard_recv_pkt(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn, | |
355 | uint flags, struct sk_buff *pkt) | |
356 | { | |
357 | uint incr_fix; | |
358 | uint width; | |
359 | int err = 0; | |
360 | ||
c3203374 | 361 | brcmf_dbg(SDIO, "fun = %d, addr = 0x%x, size = %d\n", |
5adfeb63 AS |
362 | fn, addr, pkt->len); |
363 | ||
364 | width = (flags & SDIO_REQ_4BYTE) ? 4 : 2; | |
365 | err = brcmf_sdcard_recv_prepare(sdiodev, fn, flags, width, &addr); | |
366 | if (err) | |
7057fd00 | 367 | goto done; |
5b435de0 AS |
368 | |
369 | incr_fix = (flags & SDIO_REQ_FIXED) ? SDIOH_DATA_FIX : SDIOH_DATA_INC; | |
5adfeb63 | 370 | err = brcmf_sdioh_request_buffer(sdiodev, incr_fix, SDIOH_READ, |
4c6e869d | 371 | fn, addr, pkt); |
5adfeb63 | 372 | |
7057fd00 | 373 | done: |
5adfeb63 AS |
374 | return err; |
375 | } | |
376 | ||
377 | int brcmf_sdcard_recv_chain(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn, | |
378 | uint flags, struct sk_buff_head *pktq) | |
379 | { | |
380 | uint incr_fix; | |
381 | uint width; | |
382 | int err = 0; | |
383 | ||
c3203374 | 384 | brcmf_dbg(SDIO, "fun = %d, addr = 0x%x, size = %d\n", |
5adfeb63 AS |
385 | fn, addr, pktq->qlen); |
386 | ||
5b435de0 | 387 | width = (flags & SDIO_REQ_4BYTE) ? 4 : 2; |
5adfeb63 AS |
388 | err = brcmf_sdcard_recv_prepare(sdiodev, fn, flags, width, &addr); |
389 | if (err) | |
7057fd00 | 390 | goto done; |
5b435de0 | 391 | |
5adfeb63 AS |
392 | incr_fix = (flags & SDIO_REQ_FIXED) ? SDIOH_DATA_FIX : SDIOH_DATA_INC; |
393 | err = brcmf_sdioh_request_chain(sdiodev, incr_fix, SDIOH_READ, fn, addr, | |
394 | pktq); | |
5b435de0 | 395 | |
7057fd00 | 396 | done: |
5adfeb63 | 397 | return err; |
5b435de0 AS |
398 | } |
399 | ||
400 | int | |
401 | brcmf_sdcard_send_buf(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn, | |
5adfeb63 AS |
402 | uint flags, u8 *buf, uint nbytes) |
403 | { | |
404 | struct sk_buff *mypkt; | |
405 | int err; | |
406 | ||
407 | mypkt = brcmu_pkt_buf_get_skb(nbytes); | |
408 | if (!mypkt) { | |
5e8149f5 | 409 | brcmf_err("brcmu_pkt_buf_get_skb failed: len %d\n", |
5adfeb63 AS |
410 | nbytes); |
411 | return -EIO; | |
412 | } | |
413 | ||
414 | memcpy(mypkt->data, buf, nbytes); | |
415 | err = brcmf_sdcard_send_pkt(sdiodev, addr, fn, flags, mypkt); | |
416 | ||
417 | brcmu_pkt_buf_free_skb(mypkt); | |
418 | return err; | |
419 | ||
420 | } | |
421 | ||
422 | int | |
423 | brcmf_sdcard_send_pkt(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn, | |
424 | uint flags, struct sk_buff *pkt) | |
5b435de0 AS |
425 | { |
426 | uint incr_fix; | |
427 | uint width; | |
428 | uint bar0 = addr & ~SBSDIO_SB_OFT_ADDR_MASK; | |
429 | int err = 0; | |
430 | ||
c3203374 | 431 | brcmf_dbg(SDIO, "fun = %d, addr = 0x%x, size = %d\n", |
5adfeb63 | 432 | fn, addr, pkt->len); |
5b435de0 AS |
433 | |
434 | /* Async not implemented yet */ | |
435 | if (flags & SDIO_REQ_ASYNC) | |
436 | return -ENOTSUPP; | |
437 | ||
438 | if (bar0 != sdiodev->sbwad) { | |
439 | err = brcmf_sdcard_set_sbaddr_window(sdiodev, bar0); | |
440 | if (err) | |
7057fd00 | 441 | goto done; |
5b435de0 AS |
442 | |
443 | sdiodev->sbwad = bar0; | |
444 | } | |
445 | ||
446 | addr &= SBSDIO_SB_OFT_ADDR_MASK; | |
447 | ||
448 | incr_fix = (flags & SDIO_REQ_FIXED) ? SDIOH_DATA_FIX : SDIOH_DATA_INC; | |
449 | width = (flags & SDIO_REQ_4BYTE) ? 4 : 2; | |
450 | if (width == 4) | |
451 | addr |= SBSDIO_SB_ACCESS_2_4B_FLAG; | |
452 | ||
7057fd00 FL |
453 | err = brcmf_sdioh_request_buffer(sdiodev, incr_fix, SDIOH_WRITE, fn, |
454 | addr, pkt); | |
455 | ||
456 | done: | |
7057fd00 | 457 | return err; |
5b435de0 AS |
458 | } |
459 | ||
460 | int brcmf_sdcard_rwdata(struct brcmf_sdio_dev *sdiodev, uint rw, u32 addr, | |
461 | u8 *buf, uint nbytes) | |
462 | { | |
4c6e869d AS |
463 | struct sk_buff *mypkt; |
464 | bool write = rw ? SDIOH_WRITE : SDIOH_READ; | |
465 | int err; | |
466 | ||
5b435de0 AS |
467 | addr &= SBSDIO_SB_OFT_ADDR_MASK; |
468 | addr |= SBSDIO_SB_ACCESS_2_4B_FLAG; | |
469 | ||
4c6e869d AS |
470 | mypkt = brcmu_pkt_buf_get_skb(nbytes); |
471 | if (!mypkt) { | |
5e8149f5 | 472 | brcmf_err("brcmu_pkt_buf_get_skb failed: len %d\n", |
4c6e869d AS |
473 | nbytes); |
474 | return -EIO; | |
475 | } | |
476 | ||
477 | /* For a write, copy the buffer data into the packet. */ | |
478 | if (write) | |
479 | memcpy(mypkt->data, buf, nbytes); | |
480 | ||
481 | err = brcmf_sdioh_request_buffer(sdiodev, SDIOH_DATA_INC, write, | |
482 | SDIO_FUNC_1, addr, mypkt); | |
483 | ||
484 | /* For a read, copy the packet data back to the buffer. */ | |
485 | if (!err && !write) | |
486 | memcpy(buf, mypkt->data, nbytes); | |
487 | ||
488 | brcmu_pkt_buf_free_skb(mypkt); | |
489 | return err; | |
5b435de0 AS |
490 | } |
491 | ||
492 | int brcmf_sdcard_abort(struct brcmf_sdio_dev *sdiodev, uint fn) | |
493 | { | |
494 | char t_func = (char)fn; | |
c3203374 | 495 | brcmf_dbg(SDIO, "Enter\n"); |
5b435de0 AS |
496 | |
497 | /* issue abort cmd52 command through F0 */ | |
498 | brcmf_sdioh_request_byte(sdiodev, SDIOH_WRITE, SDIO_FUNC_0, | |
499 | SDIO_CCCR_ABORT, &t_func); | |
500 | ||
c3203374 | 501 | brcmf_dbg(SDIO, "Exit\n"); |
5b435de0 AS |
502 | return 0; |
503 | } | |
504 | ||
505 | int brcmf_sdio_probe(struct brcmf_sdio_dev *sdiodev) | |
506 | { | |
507 | u32 regs = 0; | |
508 | int ret = 0; | |
509 | ||
510 | ret = brcmf_sdioh_attach(sdiodev); | |
511 | if (ret) | |
512 | goto out; | |
513 | ||
514 | regs = SI_ENUM_BASE; | |
515 | ||
5b435de0 | 516 | /* try to attach to the target device */ |
4175b88b | 517 | sdiodev->bus = brcmf_sdbrcm_probe(regs, sdiodev); |
5b435de0 | 518 | if (!sdiodev->bus) { |
5e8149f5 | 519 | brcmf_err("device attach failed\n"); |
5b435de0 AS |
520 | ret = -ENODEV; |
521 | goto out; | |
522 | } | |
523 | ||
524 | out: | |
525 | if (ret) | |
526 | brcmf_sdio_remove(sdiodev); | |
527 | ||
528 | return ret; | |
529 | } | |
530 | EXPORT_SYMBOL(brcmf_sdio_probe); | |
531 | ||
532 | int brcmf_sdio_remove(struct brcmf_sdio_dev *sdiodev) | |
533 | { | |
2def5c10 HM |
534 | sdiodev->bus_if->state = BRCMF_BUS_DOWN; |
535 | ||
5b435de0 AS |
536 | if (sdiodev->bus) { |
537 | brcmf_sdbrcm_disconnect(sdiodev->bus); | |
538 | sdiodev->bus = NULL; | |
539 | } | |
540 | ||
541 | brcmf_sdioh_detach(sdiodev); | |
542 | ||
543 | sdiodev->sbwad = 0; | |
544 | ||
545 | return 0; | |
546 | } | |
547 | EXPORT_SYMBOL(brcmf_sdio_remove); | |
548 | ||
549 | void brcmf_sdio_wdtmr_enable(struct brcmf_sdio_dev *sdiodev, bool enable) | |
550 | { | |
551 | if (enable) | |
552 | brcmf_sdbrcm_wd_timer(sdiodev->bus, BRCMF_WD_POLL_MS); | |
553 | else | |
554 | brcmf_sdbrcm_wd_timer(sdiodev->bus, 0); | |
555 | } |