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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> | |
20 | #include <linux/pci.h> | |
21 | #include <linux/pci_ids.h> | |
22 | #include <linux/sched.h> | |
23 | #include <linux/completion.h> | |
354b75bf | 24 | #include <linux/scatterlist.h> |
5b435de0 | 25 | #include <linux/mmc/sdio.h> |
e2dc9eea | 26 | #include <linux/mmc/core.h> |
5b435de0 AS |
27 | #include <linux/mmc/sdio_func.h> |
28 | #include <linux/mmc/card.h> | |
e2dc9eea AS |
29 | #include <linux/mmc/host.h> |
30 | #include <linux/platform_device.h> | |
668761ac | 31 | #include <linux/platform_data/brcmfmac-sdio.h> |
063d5177 | 32 | #include <linux/pm_runtime.h> |
e2dc9eea AS |
33 | #include <linux/suspend.h> |
34 | #include <linux/errno.h> | |
35 | #include <linux/module.h> | |
f0992ace | 36 | #include <linux/acpi.h> |
e2dc9eea | 37 | #include <net/cfg80211.h> |
5b435de0 AS |
38 | |
39 | #include <defs.h> | |
40 | #include <brcm_hw_ids.h> | |
41 | #include <brcmu_utils.h> | |
42 | #include <brcmu_wifi.h> | |
568ba389 | 43 | #include <chipcommon.h> |
5b435de0 | 44 | #include <soc.h> |
568ba389 | 45 | #include "chip.h" |
d14f78b9 | 46 | #include "bus.h" |
a8e8ed34 | 47 | #include "debug.h" |
888bf76e | 48 | #include "sdio.h" |
61f663df | 49 | #include "of.h" |
7d34b056 HM |
50 | #include "core.h" |
51 | #include "common.h" | |
5b435de0 AS |
52 | |
53 | #define SDIOH_API_ACCESS_RETRY_LIMIT 2 | |
54 | ||
e49b06ba AS |
55 | #define DMA_ALIGN_MASK 0x03 |
56 | ||
57 | #define SDIO_FUNC1_BLOCKSIZE 64 | |
58 | #define SDIO_FUNC2_BLOCKSIZE 512 | |
71370eb8 AS |
59 | /* Maximum milliseconds to wait for F2 to come up */ |
60 | #define SDIO_WAIT_F2RDY 3000 | |
61 | ||
af1fa210 AS |
62 | #define BRCMF_DEFAULT_RXGLOM_SIZE 32 /* max rx frames in glom chain */ |
63 | ||
99824643 AS |
64 | struct brcmf_sdiod_freezer { |
65 | atomic_t freezing; | |
66 | atomic_t thread_count; | |
67 | u32 frozen_count; | |
68 | wait_queue_head_t thread_freeze; | |
69 | struct completion resumed; | |
70 | }; | |
71 | ||
a39be27b | 72 | static irqreturn_t brcmf_sdiod_oob_irqhandler(int irq, void *dev_id) |
ba89bf19 | 73 | { |
5b3c1832 HM |
74 | struct brcmf_bus *bus_if = dev_get_drvdata(dev_id); |
75 | struct brcmf_sdio_dev *sdiodev = bus_if->bus_priv.sdio; | |
ba89bf19 | 76 | |
668761ac | 77 | brcmf_dbg(INTR, "OOB intr triggered\n"); |
ba89bf19 | 78 | |
668761ac | 79 | /* out-of-band interrupt is level-triggered which won't |
ba89bf19 FL |
80 | * be cleared until dpc |
81 | */ | |
82 | if (sdiodev->irq_en) { | |
83 | disable_irq_nosync(irq); | |
84 | sdiodev->irq_en = false; | |
85 | } | |
86 | ||
82d7f3c1 | 87 | brcmf_sdio_isr(sdiodev->bus); |
ba89bf19 FL |
88 | |
89 | return IRQ_HANDLED; | |
90 | } | |
91 | ||
a39be27b | 92 | static void brcmf_sdiod_ib_irqhandler(struct sdio_func *func) |
5b435de0 | 93 | { |
5b3c1832 HM |
94 | struct brcmf_bus *bus_if = dev_get_drvdata(&func->dev); |
95 | struct brcmf_sdio_dev *sdiodev = bus_if->bus_priv.sdio; | |
5b435de0 | 96 | |
668761ac | 97 | brcmf_dbg(INTR, "IB intr triggered\n"); |
5b435de0 | 98 | |
82d7f3c1 | 99 | brcmf_sdio_isr(sdiodev->bus); |
5b435de0 AS |
100 | } |
101 | ||
fbf59108 | 102 | /* dummy handler for SDIO function 2 interrupt */ |
a39be27b | 103 | static void brcmf_sdiod_dummy_irqhandler(struct sdio_func *func) |
fbf59108 FL |
104 | { |
105 | } | |
106 | ||
a39be27b | 107 | int brcmf_sdiod_intr_register(struct brcmf_sdio_dev *sdiodev) |
5b435de0 | 108 | { |
668761ac HM |
109 | int ret = 0; |
110 | u8 data; | |
568ba389 | 111 | u32 addr, gpiocontrol; |
668761ac | 112 | unsigned long flags; |
5b435de0 | 113 | |
668761ac HM |
114 | if ((sdiodev->pdata) && (sdiodev->pdata->oob_irq_supported)) { |
115 | brcmf_dbg(SDIO, "Enter, register OOB IRQ %d\n", | |
116 | sdiodev->pdata->oob_irq_nr); | |
117 | ret = request_irq(sdiodev->pdata->oob_irq_nr, | |
a39be27b | 118 | brcmf_sdiod_oob_irqhandler, |
668761ac HM |
119 | sdiodev->pdata->oob_irq_flags, |
120 | "brcmf_oob_intr", | |
121 | &sdiodev->func[1]->dev); | |
122 | if (ret != 0) { | |
123 | brcmf_err("request_irq failed %d\n", ret); | |
124 | return ret; | |
125 | } | |
126 | sdiodev->oob_irq_requested = true; | |
127 | spin_lock_init(&sdiodev->irq_en_lock); | |
128 | spin_lock_irqsave(&sdiodev->irq_en_lock, flags); | |
129 | sdiodev->irq_en = true; | |
130 | spin_unlock_irqrestore(&sdiodev->irq_en_lock, flags); | |
131 | ||
132 | ret = enable_irq_wake(sdiodev->pdata->oob_irq_nr); | |
133 | if (ret != 0) { | |
134 | brcmf_err("enable_irq_wake failed %d\n", ret); | |
135 | return ret; | |
136 | } | |
137 | sdiodev->irq_wake = true; | |
138 | ||
139 | sdio_claim_host(sdiodev->func[1]); | |
140 | ||
568ba389 HG |
141 | if (sdiodev->bus_if->chip == BRCM_CC_43362_CHIP_ID) { |
142 | /* assign GPIO to SDIO core */ | |
143 | addr = CORE_CC_REG(SI_ENUM_BASE, gpiocontrol); | |
144 | gpiocontrol = brcmf_sdiod_regrl(sdiodev, addr, &ret); | |
145 | gpiocontrol |= 0x2; | |
146 | brcmf_sdiod_regwl(sdiodev, addr, gpiocontrol, &ret); | |
147 | ||
148 | brcmf_sdiod_regwb(sdiodev, SBSDIO_GPIO_SELECT, 0xf, | |
149 | &ret); | |
150 | brcmf_sdiod_regwb(sdiodev, SBSDIO_GPIO_OUT, 0, &ret); | |
151 | brcmf_sdiod_regwb(sdiodev, SBSDIO_GPIO_EN, 0x2, &ret); | |
152 | } | |
153 | ||
668761ac | 154 | /* must configure SDIO_CCCR_IENx to enable irq */ |
a39be27b | 155 | data = brcmf_sdiod_regrb(sdiodev, SDIO_CCCR_IENx, &ret); |
668761ac | 156 | data |= 1 << SDIO_FUNC_1 | 1 << SDIO_FUNC_2 | 1; |
a39be27b | 157 | brcmf_sdiod_regwb(sdiodev, SDIO_CCCR_IENx, data, &ret); |
668761ac HM |
158 | |
159 | /* redirect, configure and enable io for interrupt signal */ | |
160 | data = SDIO_SEPINT_MASK | SDIO_SEPINT_OE; | |
161 | if (sdiodev->pdata->oob_irq_flags & IRQF_TRIGGER_HIGH) | |
162 | data |= SDIO_SEPINT_ACT_HI; | |
a39be27b | 163 | brcmf_sdiod_regwb(sdiodev, SDIO_CCCR_BRCM_SEPINT, data, &ret); |
668761ac HM |
164 | |
165 | sdio_release_host(sdiodev->func[1]); | |
166 | } else { | |
167 | brcmf_dbg(SDIO, "Entering\n"); | |
168 | sdio_claim_host(sdiodev->func[1]); | |
a39be27b AS |
169 | sdio_claim_irq(sdiodev->func[1], brcmf_sdiod_ib_irqhandler); |
170 | sdio_claim_irq(sdiodev->func[2], brcmf_sdiod_dummy_irqhandler); | |
668761ac HM |
171 | sdio_release_host(sdiodev->func[1]); |
172 | } | |
5b435de0 AS |
173 | |
174 | return 0; | |
175 | } | |
176 | ||
a39be27b | 177 | int brcmf_sdiod_intr_unregister(struct brcmf_sdio_dev *sdiodev) |
5b435de0 | 178 | { |
c3203374 | 179 | brcmf_dbg(SDIO, "Entering\n"); |
5b435de0 | 180 | |
668761ac HM |
181 | if ((sdiodev->pdata) && (sdiodev->pdata->oob_irq_supported)) { |
182 | sdio_claim_host(sdiodev->func[1]); | |
a39be27b AS |
183 | brcmf_sdiod_regwb(sdiodev, SDIO_CCCR_BRCM_SEPINT, 0, NULL); |
184 | brcmf_sdiod_regwb(sdiodev, SDIO_CCCR_IENx, 0, NULL); | |
668761ac HM |
185 | sdio_release_host(sdiodev->func[1]); |
186 | ||
187 | if (sdiodev->oob_irq_requested) { | |
188 | sdiodev->oob_irq_requested = false; | |
189 | if (sdiodev->irq_wake) { | |
190 | disable_irq_wake(sdiodev->pdata->oob_irq_nr); | |
191 | sdiodev->irq_wake = false; | |
192 | } | |
193 | free_irq(sdiodev->pdata->oob_irq_nr, | |
194 | &sdiodev->func[1]->dev); | |
195 | sdiodev->irq_en = false; | |
196 | } | |
197 | } else { | |
198 | sdio_claim_host(sdiodev->func[1]); | |
199 | sdio_release_irq(sdiodev->func[2]); | |
200 | sdio_release_irq(sdiodev->func[1]); | |
201 | sdio_release_host(sdiodev->func[1]); | |
202 | } | |
5b435de0 AS |
203 | |
204 | return 0; | |
205 | } | |
206 | ||
a1ce7a0d AS |
207 | void brcmf_sdiod_change_state(struct brcmf_sdio_dev *sdiodev, |
208 | enum brcmf_sdiod_state state) | |
209 | { | |
210 | if (sdiodev->state == BRCMF_SDIOD_NOMEDIUM || | |
211 | state == sdiodev->state) | |
212 | return; | |
213 | ||
214 | brcmf_dbg(TRACE, "%d -> %d\n", sdiodev->state, state); | |
215 | switch (sdiodev->state) { | |
216 | case BRCMF_SDIOD_DATA: | |
217 | /* any other state means bus interface is down */ | |
218 | brcmf_bus_change_state(sdiodev->bus_if, BRCMF_BUS_DOWN); | |
219 | break; | |
220 | case BRCMF_SDIOD_DOWN: | |
221 | /* transition from DOWN to DATA means bus interface is up */ | |
222 | if (state == BRCMF_SDIOD_DATA) | |
223 | brcmf_bus_change_state(sdiodev->bus_if, BRCMF_BUS_UP); | |
224 | break; | |
225 | default: | |
226 | break; | |
227 | } | |
228 | sdiodev->state = state; | |
229 | } | |
230 | ||
36c4e7e4 AS |
231 | static inline int brcmf_sdiod_f0_writeb(struct sdio_func *func, |
232 | uint regaddr, u8 byte) | |
e49b06ba | 233 | { |
e49b06ba AS |
234 | int err_ret; |
235 | ||
236 | /* | |
237 | * Can only directly write to some F0 registers. | |
36c4e7e4 | 238 | * Handle CCCR_IENx and CCCR_ABORT command |
e49b06ba AS |
239 | * as a special case. |
240 | */ | |
71370eb8 | 241 | if ((regaddr == SDIO_CCCR_ABORT) || |
36c4e7e4 AS |
242 | (regaddr == SDIO_CCCR_IENx)) |
243 | sdio_writeb(func, byte, regaddr, &err_ret); | |
244 | else | |
245 | sdio_f0_writeb(func, byte, regaddr, &err_ret); | |
e49b06ba AS |
246 | |
247 | return err_ret; | |
248 | } | |
249 | ||
71c60cf2 AS |
250 | static int brcmf_sdiod_request_data(struct brcmf_sdio_dev *sdiodev, u8 fn, |
251 | u32 addr, u8 regsz, void *data, bool write) | |
e49b06ba | 252 | { |
71c60cf2 AS |
253 | struct sdio_func *func; |
254 | int ret; | |
e49b06ba | 255 | |
71c60cf2 AS |
256 | brcmf_dbg(SDIO, "rw=%d, func=%d, addr=0x%05x, nbytes=%d\n", |
257 | write, fn, addr, regsz); | |
e49b06ba | 258 | |
71c60cf2 AS |
259 | /* only allow byte access on F0 */ |
260 | if (WARN_ON(regsz > 1 && !fn)) | |
261 | return -EINVAL; | |
262 | func = sdiodev->func[fn]; | |
263 | ||
264 | switch (regsz) { | |
265 | case sizeof(u8): | |
266 | if (write) { | |
267 | if (fn) | |
268 | sdio_writeb(func, *(u8 *)data, addr, &ret); | |
269 | else | |
270 | ret = brcmf_sdiod_f0_writeb(func, addr, | |
271 | *(u8 *)data); | |
e49b06ba | 272 | } else { |
71c60cf2 AS |
273 | if (fn) |
274 | *(u8 *)data = sdio_readb(func, addr, &ret); | |
275 | else | |
276 | *(u8 *)data = sdio_f0_readb(func, addr, &ret); | |
e49b06ba | 277 | } |
71c60cf2 AS |
278 | break; |
279 | case sizeof(u16): | |
280 | if (write) | |
281 | sdio_writew(func, *(u16 *)data, addr, &ret); | |
282 | else | |
283 | *(u16 *)data = sdio_readw(func, addr, &ret); | |
284 | break; | |
285 | case sizeof(u32): | |
286 | if (write) | |
287 | sdio_writel(func, *(u32 *)data, addr, &ret); | |
288 | else | |
289 | *(u32 *)data = sdio_readl(func, addr, &ret); | |
290 | break; | |
291 | default: | |
292 | brcmf_err("invalid size: %d\n", regsz); | |
293 | break; | |
e49b06ba AS |
294 | } |
295 | ||
4d1a4f16 AS |
296 | if (ret) |
297 | brcmf_dbg(SDIO, "failed to %s data F%d@0x%05x, err: %d\n", | |
298 | write ? "write" : "read", fn, addr, ret); | |
299 | ||
71c60cf2 | 300 | return ret; |
e49b06ba AS |
301 | } |
302 | ||
71c60cf2 AS |
303 | static int brcmf_sdiod_regrw_helper(struct brcmf_sdio_dev *sdiodev, u32 addr, |
304 | u8 regsz, void *data, bool write) | |
e49b06ba | 305 | { |
4d1a4f16 | 306 | u8 func; |
71c60cf2 AS |
307 | s32 retry = 0; |
308 | int ret; | |
e49b06ba | 309 | |
a1ce7a0d | 310 | if (sdiodev->state == BRCMF_SDIOD_NOMEDIUM) |
bb350711 AS |
311 | return -ENOMEDIUM; |
312 | ||
71c60cf2 AS |
313 | /* |
314 | * figure out how to read the register based on address range | |
315 | * 0x00 ~ 0x7FF: function 0 CCCR and FBR | |
316 | * 0x10000 ~ 0x1FFFF: function 1 miscellaneous registers | |
317 | * The rest: function 1 silicon backplane core registers | |
318 | */ | |
319 | if ((addr & ~REG_F0_REG_MASK) == 0) | |
4d1a4f16 | 320 | func = SDIO_FUNC_0; |
71c60cf2 | 321 | else |
4d1a4f16 | 322 | func = SDIO_FUNC_1; |
e49b06ba | 323 | |
71c60cf2 AS |
324 | do { |
325 | if (!write) | |
326 | memset(data, 0, regsz); | |
327 | /* for retry wait for 1 ms till bus get settled down */ | |
328 | if (retry) | |
329 | usleep_range(1000, 2000); | |
4d1a4f16 | 330 | ret = brcmf_sdiod_request_data(sdiodev, func, addr, regsz, |
71c60cf2 | 331 | data, write); |
bb350711 AS |
332 | } while (ret != 0 && ret != -ENOMEDIUM && |
333 | retry++ < SDIOH_API_ACCESS_RETRY_LIMIT); | |
e49b06ba | 334 | |
bb350711 | 335 | if (ret == -ENOMEDIUM) |
a1ce7a0d | 336 | brcmf_sdiod_change_state(sdiodev, BRCMF_SDIOD_NOMEDIUM); |
4d1a4f16 AS |
337 | else if (ret != 0) { |
338 | /* | |
339 | * SleepCSR register access can fail when | |
340 | * waking up the device so reduce this noise | |
341 | * in the logs. | |
342 | */ | |
343 | if (addr != SBSDIO_FUNC1_SLEEPCSR) | |
344 | brcmf_err("failed to %s data F%d@0x%05x, err: %d\n", | |
345 | write ? "write" : "read", func, addr, ret); | |
346 | else | |
347 | brcmf_dbg(SDIO, "failed to %s data F%d@0x%05x, err: %d\n", | |
348 | write ? "write" : "read", func, addr, ret); | |
349 | } | |
71c60cf2 | 350 | return ret; |
e49b06ba AS |
351 | } |
352 | ||
356bae6f | 353 | static int |
a39be27b | 354 | brcmf_sdiod_set_sbaddr_window(struct brcmf_sdio_dev *sdiodev, u32 address) |
5b435de0 | 355 | { |
7d9cfc28 FL |
356 | int err = 0, i; |
357 | u8 addr[3]; | |
7d9cfc28 | 358 | |
a1ce7a0d | 359 | if (sdiodev->state == BRCMF_SDIOD_NOMEDIUM) |
bb350711 AS |
360 | return -ENOMEDIUM; |
361 | ||
7d9cfc28 FL |
362 | addr[0] = (address >> 8) & SBSDIO_SBADDRLOW_MASK; |
363 | addr[1] = (address >> 16) & SBSDIO_SBADDRMID_MASK; | |
364 | addr[2] = (address >> 24) & SBSDIO_SBADDRHIGH_MASK; | |
365 | ||
366 | for (i = 0; i < 3; i++) { | |
71c60cf2 AS |
367 | err = brcmf_sdiod_regrw_helper(sdiodev, |
368 | SBSDIO_FUNC1_SBADDRLOW + i, | |
369 | sizeof(u8), &addr[i], true); | |
7d9cfc28 | 370 | if (err) { |
71c60cf2 | 371 | brcmf_err("failed at addr: 0x%0x\n", |
7d9cfc28 FL |
372 | SBSDIO_FUNC1_SBADDRLOW + i); |
373 | break; | |
374 | } | |
375 | } | |
5b435de0 AS |
376 | |
377 | return err; | |
378 | } | |
379 | ||
356bae6f | 380 | static int |
a39be27b | 381 | brcmf_sdiod_addrprep(struct brcmf_sdio_dev *sdiodev, uint width, u32 *addr) |
356bae6f FL |
382 | { |
383 | uint bar0 = *addr & ~SBSDIO_SB_OFT_ADDR_MASK; | |
384 | int err = 0; | |
385 | ||
386 | if (bar0 != sdiodev->sbwad) { | |
a39be27b | 387 | err = brcmf_sdiod_set_sbaddr_window(sdiodev, bar0); |
356bae6f FL |
388 | if (err) |
389 | return err; | |
390 | ||
391 | sdiodev->sbwad = bar0; | |
392 | } | |
393 | ||
394 | *addr &= SBSDIO_SB_OFT_ADDR_MASK; | |
395 | ||
396 | if (width == 4) | |
397 | *addr |= SBSDIO_SB_ACCESS_2_4B_FLAG; | |
398 | ||
399 | return 0; | |
400 | } | |
401 | ||
a39be27b | 402 | u8 brcmf_sdiod_regrb(struct brcmf_sdio_dev *sdiodev, u32 addr, int *ret) |
e9b8d91d FL |
403 | { |
404 | u8 data; | |
405 | int retval; | |
406 | ||
c3203374 | 407 | brcmf_dbg(SDIO, "addr:0x%08x\n", addr); |
71c60cf2 AS |
408 | retval = brcmf_sdiod_regrw_helper(sdiodev, addr, sizeof(data), &data, |
409 | false); | |
c3203374 | 410 | brcmf_dbg(SDIO, "data:0x%02x\n", data); |
e9b8d91d FL |
411 | |
412 | if (ret) | |
413 | *ret = retval; | |
414 | ||
415 | return data; | |
416 | } | |
417 | ||
a39be27b | 418 | u32 brcmf_sdiod_regrl(struct brcmf_sdio_dev *sdiodev, u32 addr, int *ret) |
e9b8d91d FL |
419 | { |
420 | u32 data; | |
421 | int retval; | |
422 | ||
c3203374 | 423 | brcmf_dbg(SDIO, "addr:0x%08x\n", addr); |
71c60cf2 AS |
424 | retval = brcmf_sdiod_addrprep(sdiodev, sizeof(data), &addr); |
425 | if (retval) | |
426 | goto done; | |
427 | retval = brcmf_sdiod_regrw_helper(sdiodev, addr, sizeof(data), &data, | |
428 | false); | |
c3203374 | 429 | brcmf_dbg(SDIO, "data:0x%08x\n", data); |
e9b8d91d | 430 | |
71c60cf2 | 431 | done: |
e9b8d91d FL |
432 | if (ret) |
433 | *ret = retval; | |
434 | ||
435 | return data; | |
436 | } | |
437 | ||
a39be27b | 438 | void brcmf_sdiod_regwb(struct brcmf_sdio_dev *sdiodev, u32 addr, |
e9b8d91d FL |
439 | u8 data, int *ret) |
440 | { | |
441 | int retval; | |
442 | ||
c3203374 | 443 | brcmf_dbg(SDIO, "addr:0x%08x, data:0x%02x\n", addr, data); |
71c60cf2 AS |
444 | retval = brcmf_sdiod_regrw_helper(sdiodev, addr, sizeof(data), &data, |
445 | true); | |
e9b8d91d FL |
446 | if (ret) |
447 | *ret = retval; | |
448 | } | |
449 | ||
a39be27b | 450 | void brcmf_sdiod_regwl(struct brcmf_sdio_dev *sdiodev, u32 addr, |
e9b8d91d FL |
451 | u32 data, int *ret) |
452 | { | |
453 | int retval; | |
454 | ||
c3203374 | 455 | brcmf_dbg(SDIO, "addr:0x%08x, data:0x%08x\n", addr, data); |
71c60cf2 AS |
456 | retval = brcmf_sdiod_addrprep(sdiodev, sizeof(data), &addr); |
457 | if (retval) | |
458 | goto done; | |
459 | retval = brcmf_sdiod_regrw_helper(sdiodev, addr, sizeof(data), &data, | |
460 | true); | |
e9b8d91d | 461 | |
71c60cf2 | 462 | done: |
e9b8d91d FL |
463 | if (ret) |
464 | *ret = retval; | |
465 | } | |
466 | ||
a39be27b | 467 | static int brcmf_sdiod_buffrw(struct brcmf_sdio_dev *sdiodev, uint fn, |
4aef267e AS |
468 | bool write, u32 addr, struct sk_buff *pkt) |
469 | { | |
470 | unsigned int req_sz; | |
bb350711 | 471 | int err; |
4aef267e | 472 | |
4aef267e AS |
473 | /* Single skb use the standard mmc interface */ |
474 | req_sz = pkt->len + 3; | |
475 | req_sz &= (uint)~3; | |
476 | ||
477 | if (write) | |
bb350711 AS |
478 | err = sdio_memcpy_toio(sdiodev->func[fn], addr, |
479 | ((u8 *)(pkt->data)), req_sz); | |
4aef267e | 480 | else if (fn == 1) |
bb350711 AS |
481 | err = sdio_memcpy_fromio(sdiodev->func[fn], ((u8 *)(pkt->data)), |
482 | addr, req_sz); | |
4aef267e AS |
483 | else |
484 | /* function 2 read is FIFO operation */ | |
bb350711 AS |
485 | err = sdio_readsb(sdiodev->func[fn], ((u8 *)(pkt->data)), addr, |
486 | req_sz); | |
487 | if (err == -ENOMEDIUM) | |
a1ce7a0d | 488 | brcmf_sdiod_change_state(sdiodev, BRCMF_SDIOD_NOMEDIUM); |
bb350711 | 489 | return err; |
4aef267e AS |
490 | } |
491 | ||
78b3f1c5 | 492 | /** |
a39be27b | 493 | * brcmf_sdiod_sglist_rw - SDIO interface function for block data access |
78b3f1c5 FL |
494 | * @sdiodev: brcmfmac sdio device |
495 | * @fn: SDIO function number | |
496 | * @write: direction flag | |
497 | * @addr: dongle memory address as source/destination | |
498 | * @pkt: skb pointer | |
499 | * | |
500 | * This function takes the respbonsibility as the interface function to MMC | |
501 | * stack for block data access. It assumes that the skb passed down by the | |
502 | * caller has already been padded and aligned. | |
503 | */ | |
a39be27b AS |
504 | static int brcmf_sdiod_sglist_rw(struct brcmf_sdio_dev *sdiodev, uint fn, |
505 | bool write, u32 addr, | |
506 | struct sk_buff_head *pktlist) | |
78b3f1c5 | 507 | { |
354b75bf | 508 | unsigned int req_sz, func_blk_sz, sg_cnt, sg_data_sz, pkt_offset; |
71201496 | 509 | unsigned int max_req_sz, orig_offset, dst_offset; |
3f782744 | 510 | unsigned short max_seg_cnt, seg_sz; |
3b81a680 FL |
511 | unsigned char *pkt_data, *orig_data, *dst_data; |
512 | struct sk_buff *pkt_next = NULL, *local_pkt_next; | |
513 | struct sk_buff_head local_list, *target_list; | |
354b75bf FL |
514 | struct mmc_request mmc_req; |
515 | struct mmc_command mmc_cmd; | |
516 | struct mmc_data mmc_dat; | |
354b75bf | 517 | struct scatterlist *sgl; |
354b75bf FL |
518 | int ret = 0; |
519 | ||
520 | if (!pktlist->qlen) | |
521 | return -EINVAL; | |
78b3f1c5 | 522 | |
3b81a680 FL |
523 | target_list = pktlist; |
524 | /* for host with broken sg support, prepare a page aligned list */ | |
525 | __skb_queue_head_init(&local_list); | |
526 | if (sdiodev->pdata && sdiodev->pdata->broken_sg_support && !write) { | |
527 | req_sz = 0; | |
528 | skb_queue_walk(pktlist, pkt_next) | |
529 | req_sz += pkt_next->len; | |
530 | req_sz = ALIGN(req_sz, sdiodev->func[fn]->cur_blksize); | |
531 | while (req_sz > PAGE_SIZE) { | |
532 | pkt_next = brcmu_pkt_buf_get_skb(PAGE_SIZE); | |
533 | if (pkt_next == NULL) { | |
534 | ret = -ENOMEM; | |
535 | goto exit; | |
536 | } | |
537 | __skb_queue_tail(&local_list, pkt_next); | |
538 | req_sz -= PAGE_SIZE; | |
539 | } | |
540 | pkt_next = brcmu_pkt_buf_get_skb(req_sz); | |
541 | if (pkt_next == NULL) { | |
542 | ret = -ENOMEM; | |
543 | goto exit; | |
544 | } | |
545 | __skb_queue_tail(&local_list, pkt_next); | |
546 | target_list = &local_list; | |
547 | } | |
548 | ||
354b75bf | 549 | func_blk_sz = sdiodev->func[fn]->cur_blksize; |
71201496 AS |
550 | max_req_sz = sdiodev->max_request_size; |
551 | max_seg_cnt = min_t(unsigned short, sdiodev->max_segment_count, | |
552 | target_list->qlen); | |
3b81a680 | 553 | seg_sz = target_list->qlen; |
354b75bf | 554 | pkt_offset = 0; |
3b81a680 | 555 | pkt_next = target_list->next; |
354b75bf | 556 | |
7f9a8dc8 AS |
557 | memset(&mmc_req, 0, sizeof(struct mmc_request)); |
558 | memset(&mmc_cmd, 0, sizeof(struct mmc_command)); | |
559 | memset(&mmc_dat, 0, sizeof(struct mmc_data)); | |
560 | ||
af1fa210 | 561 | mmc_dat.sg = sdiodev->sgtable.sgl; |
7f9a8dc8 AS |
562 | mmc_dat.blksz = func_blk_sz; |
563 | mmc_dat.flags = write ? MMC_DATA_WRITE : MMC_DATA_READ; | |
564 | mmc_cmd.opcode = SD_IO_RW_EXTENDED; | |
565 | mmc_cmd.arg = write ? 1<<31 : 0; /* write flag */ | |
566 | mmc_cmd.arg |= (fn & 0x7) << 28; /* SDIO func num */ | |
567 | mmc_cmd.arg |= 1<<27; /* block mode */ | |
568 | /* for function 1 the addr will be incremented */ | |
569 | mmc_cmd.arg |= (fn == 1) ? 1<<26 : 0; | |
570 | mmc_cmd.flags = MMC_RSP_SPI_R5 | MMC_RSP_R5 | MMC_CMD_ADTC; | |
571 | mmc_req.cmd = &mmc_cmd; | |
572 | mmc_req.data = &mmc_dat; | |
573 | ||
354b75bf FL |
574 | while (seg_sz) { |
575 | req_sz = 0; | |
576 | sg_cnt = 0; | |
af1fa210 | 577 | sgl = sdiodev->sgtable.sgl; |
354b75bf | 578 | /* prep sg table */ |
3b81a680 | 579 | while (pkt_next != (struct sk_buff *)target_list) { |
354b75bf FL |
580 | pkt_data = pkt_next->data + pkt_offset; |
581 | sg_data_sz = pkt_next->len - pkt_offset; | |
71201496 AS |
582 | if (sg_data_sz > sdiodev->max_segment_size) |
583 | sg_data_sz = sdiodev->max_segment_size; | |
354b75bf FL |
584 | if (sg_data_sz > max_req_sz - req_sz) |
585 | sg_data_sz = max_req_sz - req_sz; | |
586 | ||
587 | sg_set_buf(sgl, pkt_data, sg_data_sz); | |
588 | ||
589 | sg_cnt++; | |
590 | sgl = sg_next(sgl); | |
591 | req_sz += sg_data_sz; | |
592 | pkt_offset += sg_data_sz; | |
593 | if (pkt_offset == pkt_next->len) { | |
594 | pkt_offset = 0; | |
595 | pkt_next = pkt_next->next; | |
596 | } | |
597 | ||
3f782744 | 598 | if (req_sz >= max_req_sz || sg_cnt >= max_seg_cnt) |
354b75bf FL |
599 | break; |
600 | } | |
601 | seg_sz -= sg_cnt; | |
602 | ||
603 | if (req_sz % func_blk_sz != 0) { | |
604 | brcmf_err("sg request length %u is not %u aligned\n", | |
605 | req_sz, func_blk_sz); | |
3b81a680 FL |
606 | ret = -ENOTBLK; |
607 | goto exit; | |
354b75bf | 608 | } |
7f9a8dc8 | 609 | |
354b75bf | 610 | mmc_dat.sg_len = sg_cnt; |
354b75bf | 611 | mmc_dat.blocks = req_sz / func_blk_sz; |
354b75bf FL |
612 | mmc_cmd.arg |= (addr & 0x1FFFF) << 9; /* address */ |
613 | mmc_cmd.arg |= mmc_dat.blocks & 0x1FF; /* block count */ | |
7f9a8dc8 | 614 | /* incrementing addr for function 1 */ |
354b75bf FL |
615 | if (fn == 1) |
616 | addr += req_sz; | |
617 | ||
618 | mmc_set_data_timeout(&mmc_dat, sdiodev->func[fn]->card); | |
71201496 | 619 | mmc_wait_for_req(sdiodev->func[fn]->card->host, &mmc_req); |
354b75bf FL |
620 | |
621 | ret = mmc_cmd.error ? mmc_cmd.error : mmc_dat.error; | |
bb350711 | 622 | if (ret == -ENOMEDIUM) { |
a1ce7a0d | 623 | brcmf_sdiod_change_state(sdiodev, BRCMF_SDIOD_NOMEDIUM); |
bb350711 AS |
624 | break; |
625 | } else if (ret != 0) { | |
354b75bf FL |
626 | brcmf_err("CMD53 sg block %s failed %d\n", |
627 | write ? "write" : "read", ret); | |
628 | ret = -EIO; | |
629 | break; | |
630 | } | |
631 | } | |
632 | ||
3b81a680 FL |
633 | if (sdiodev->pdata && sdiodev->pdata->broken_sg_support && !write) { |
634 | local_pkt_next = local_list.next; | |
635 | orig_offset = 0; | |
636 | skb_queue_walk(pktlist, pkt_next) { | |
637 | dst_offset = 0; | |
638 | do { | |
639 | req_sz = local_pkt_next->len - orig_offset; | |
640 | req_sz = min_t(uint, pkt_next->len - dst_offset, | |
641 | req_sz); | |
642 | orig_data = local_pkt_next->data + orig_offset; | |
643 | dst_data = pkt_next->data + dst_offset; | |
644 | memcpy(dst_data, orig_data, req_sz); | |
645 | orig_offset += req_sz; | |
646 | dst_offset += req_sz; | |
647 | if (orig_offset == local_pkt_next->len) { | |
648 | orig_offset = 0; | |
649 | local_pkt_next = local_pkt_next->next; | |
650 | } | |
651 | if (dst_offset == pkt_next->len) | |
652 | break; | |
653 | } while (!skb_queue_empty(&local_list)); | |
654 | } | |
655 | } | |
656 | ||
657 | exit: | |
af1fa210 | 658 | sg_init_table(sdiodev->sgtable.sgl, sdiodev->sgtable.orig_nents); |
3b81a680 FL |
659 | while ((pkt_next = __skb_dequeue(&local_list)) != NULL) |
660 | brcmu_pkt_buf_free_skb(pkt_next); | |
354b75bf FL |
661 | |
662 | return ret; | |
78b3f1c5 FL |
663 | } |
664 | ||
a7cdd821 | 665 | int brcmf_sdiod_recv_buf(struct brcmf_sdio_dev *sdiodev, u8 *buf, uint nbytes) |
5adfeb63 AS |
666 | { |
667 | struct sk_buff *mypkt; | |
668 | int err; | |
669 | ||
670 | mypkt = brcmu_pkt_buf_get_skb(nbytes); | |
671 | if (!mypkt) { | |
5e8149f5 | 672 | brcmf_err("brcmu_pkt_buf_get_skb failed: len %d\n", |
5adfeb63 AS |
673 | nbytes); |
674 | return -EIO; | |
675 | } | |
676 | ||
a7cdd821 | 677 | err = brcmf_sdiod_recv_pkt(sdiodev, mypkt); |
5adfeb63 AS |
678 | if (!err) |
679 | memcpy(buf, mypkt->data, nbytes); | |
680 | ||
681 | brcmu_pkt_buf_free_skb(mypkt); | |
682 | return err; | |
683 | } | |
684 | ||
a7cdd821 | 685 | int brcmf_sdiod_recv_pkt(struct brcmf_sdio_dev *sdiodev, struct sk_buff *pkt) |
5adfeb63 | 686 | { |
a7cdd821 | 687 | u32 addr = sdiodev->sbwad; |
5adfeb63 AS |
688 | int err = 0; |
689 | ||
a7cdd821 | 690 | brcmf_dbg(SDIO, "addr = 0x%x, size = %d\n", addr, pkt->len); |
5adfeb63 | 691 | |
a7cdd821 | 692 | err = brcmf_sdiod_addrprep(sdiodev, 4, &addr); |
5adfeb63 | 693 | if (err) |
7057fd00 | 694 | goto done; |
5b435de0 | 695 | |
a7cdd821 | 696 | err = brcmf_sdiod_buffrw(sdiodev, SDIO_FUNC_2, false, addr, pkt); |
5adfeb63 | 697 | |
7057fd00 | 698 | done: |
5adfeb63 AS |
699 | return err; |
700 | } | |
701 | ||
a7cdd821 AS |
702 | int brcmf_sdiod_recv_chain(struct brcmf_sdio_dev *sdiodev, |
703 | struct sk_buff_head *pktq, uint totlen) | |
5adfeb63 | 704 | { |
a413e39a AS |
705 | struct sk_buff *glom_skb; |
706 | struct sk_buff *skb; | |
a7cdd821 | 707 | u32 addr = sdiodev->sbwad; |
5adfeb63 AS |
708 | int err = 0; |
709 | ||
a7cdd821 AS |
710 | brcmf_dbg(SDIO, "addr = 0x%x, size = %d\n", |
711 | addr, pktq->qlen); | |
5adfeb63 | 712 | |
a7cdd821 | 713 | err = brcmf_sdiod_addrprep(sdiodev, 4, &addr); |
5adfeb63 | 714 | if (err) |
7057fd00 | 715 | goto done; |
5b435de0 | 716 | |
a413e39a | 717 | if (pktq->qlen == 1) |
a7cdd821 AS |
718 | err = brcmf_sdiod_buffrw(sdiodev, SDIO_FUNC_2, false, addr, |
719 | pktq->next); | |
a413e39a AS |
720 | else if (!sdiodev->sg_support) { |
721 | glom_skb = brcmu_pkt_buf_get_skb(totlen); | |
722 | if (!glom_skb) | |
723 | return -ENOMEM; | |
a7cdd821 AS |
724 | err = brcmf_sdiod_buffrw(sdiodev, SDIO_FUNC_2, false, addr, |
725 | glom_skb); | |
a413e39a AS |
726 | if (err) |
727 | goto done; | |
728 | ||
729 | skb_queue_walk(pktq, skb) { | |
730 | memcpy(skb->data, glom_skb->data, skb->len); | |
731 | skb_pull(glom_skb, skb->len); | |
732 | } | |
733 | } else | |
a7cdd821 AS |
734 | err = brcmf_sdiod_sglist_rw(sdiodev, SDIO_FUNC_2, false, addr, |
735 | pktq); | |
5b435de0 | 736 | |
7057fd00 | 737 | done: |
5adfeb63 | 738 | return err; |
5b435de0 AS |
739 | } |
740 | ||
a7cdd821 | 741 | int brcmf_sdiod_send_buf(struct brcmf_sdio_dev *sdiodev, u8 *buf, uint nbytes) |
5adfeb63 AS |
742 | { |
743 | struct sk_buff *mypkt; | |
a7cdd821 | 744 | u32 addr = sdiodev->sbwad; |
5adfeb63 AS |
745 | int err; |
746 | ||
747 | mypkt = brcmu_pkt_buf_get_skb(nbytes); | |
748 | if (!mypkt) { | |
5e8149f5 | 749 | brcmf_err("brcmu_pkt_buf_get_skb failed: len %d\n", |
5adfeb63 AS |
750 | nbytes); |
751 | return -EIO; | |
752 | } | |
753 | ||
754 | memcpy(mypkt->data, buf, nbytes); | |
4aef267e | 755 | |
a7cdd821 | 756 | err = brcmf_sdiod_addrprep(sdiodev, 4, &addr); |
4aef267e | 757 | |
fcaac2b1 | 758 | if (!err) |
a7cdd821 AS |
759 | err = brcmf_sdiod_buffrw(sdiodev, SDIO_FUNC_2, true, addr, |
760 | mypkt); | |
5adfeb63 AS |
761 | |
762 | brcmu_pkt_buf_free_skb(mypkt); | |
763 | return err; | |
764 | ||
765 | } | |
766 | ||
a7cdd821 AS |
767 | int brcmf_sdiod_send_pkt(struct brcmf_sdio_dev *sdiodev, |
768 | struct sk_buff_head *pktq) | |
5b435de0 | 769 | { |
c8cce1f9 | 770 | struct sk_buff *skb; |
a7cdd821 | 771 | u32 addr = sdiodev->sbwad; |
fcaac2b1 | 772 | int err; |
5b435de0 | 773 | |
a7cdd821 | 774 | brcmf_dbg(SDIO, "addr = 0x%x, size = %d\n", addr, pktq->qlen); |
5b435de0 | 775 | |
a7cdd821 | 776 | err = brcmf_sdiod_addrprep(sdiodev, 4, &addr); |
fcaac2b1 AS |
777 | if (err) |
778 | return err; | |
5b435de0 | 779 | |
c8cce1f9 AS |
780 | if (pktq->qlen == 1 || !sdiodev->sg_support) |
781 | skb_queue_walk(pktq, skb) { | |
a7cdd821 AS |
782 | err = brcmf_sdiod_buffrw(sdiodev, SDIO_FUNC_2, true, |
783 | addr, skb); | |
c8cce1f9 AS |
784 | if (err) |
785 | break; | |
786 | } | |
787 | else | |
a7cdd821 AS |
788 | err = brcmf_sdiod_sglist_rw(sdiodev, SDIO_FUNC_2, true, addr, |
789 | pktq); | |
c8cce1f9 AS |
790 | |
791 | return err; | |
5b435de0 AS |
792 | } |
793 | ||
ba540b01 | 794 | int |
a39be27b AS |
795 | brcmf_sdiod_ramrw(struct brcmf_sdio_dev *sdiodev, bool write, u32 address, |
796 | u8 *data, uint size) | |
5b435de0 | 797 | { |
ba540b01 FL |
798 | int bcmerror = 0; |
799 | struct sk_buff *pkt; | |
800 | u32 sdaddr; | |
801 | uint dsize; | |
802 | ||
803 | dsize = min_t(uint, SBSDIO_SB_OFT_ADDR_LIMIT, size); | |
804 | pkt = dev_alloc_skb(dsize); | |
805 | if (!pkt) { | |
806 | brcmf_err("dev_alloc_skb failed: len %d\n", dsize); | |
807 | return -EIO; | |
808 | } | |
809 | pkt->priority = 0; | |
4c6e869d | 810 | |
ba540b01 FL |
811 | /* Determine initial transfer parameters */ |
812 | sdaddr = address & SBSDIO_SB_OFT_ADDR_MASK; | |
813 | if ((sdaddr + size) & SBSDIO_SBWINDOW_MASK) | |
814 | dsize = (SBSDIO_SB_OFT_ADDR_LIMIT - sdaddr); | |
815 | else | |
816 | dsize = size; | |
5b435de0 | 817 | |
ba540b01 FL |
818 | sdio_claim_host(sdiodev->func[1]); |
819 | ||
820 | /* Do the transfer(s) */ | |
821 | while (size) { | |
822 | /* Set the backplane window to include the start address */ | |
a39be27b | 823 | bcmerror = brcmf_sdiod_set_sbaddr_window(sdiodev, address); |
ba540b01 FL |
824 | if (bcmerror) |
825 | break; | |
826 | ||
827 | brcmf_dbg(SDIO, "%s %d bytes at offset 0x%08x in window 0x%08x\n", | |
828 | write ? "write" : "read", dsize, | |
829 | sdaddr, address & SBSDIO_SBWINDOW_MASK); | |
830 | ||
831 | sdaddr &= SBSDIO_SB_OFT_ADDR_MASK; | |
832 | sdaddr |= SBSDIO_SB_ACCESS_2_4B_FLAG; | |
833 | ||
834 | skb_put(pkt, dsize); | |
835 | if (write) | |
836 | memcpy(pkt->data, data, dsize); | |
a39be27b AS |
837 | bcmerror = brcmf_sdiod_buffrw(sdiodev, SDIO_FUNC_1, write, |
838 | sdaddr, pkt); | |
ba540b01 FL |
839 | if (bcmerror) { |
840 | brcmf_err("membytes transfer failed\n"); | |
841 | break; | |
842 | } | |
843 | if (!write) | |
844 | memcpy(data, pkt->data, dsize); | |
79c868e5 | 845 | skb_trim(pkt, 0); |
ba540b01 FL |
846 | |
847 | /* Adjust for next transfer (if any) */ | |
848 | size -= dsize; | |
849 | if (size) { | |
850 | data += dsize; | |
851 | address += dsize; | |
852 | sdaddr = 0; | |
853 | dsize = min_t(uint, SBSDIO_SB_OFT_ADDR_LIMIT, size); | |
854 | } | |
4c6e869d AS |
855 | } |
856 | ||
ba540b01 | 857 | dev_kfree_skb(pkt); |
4c6e869d | 858 | |
ba540b01 | 859 | /* Return the window to backplane enumeration space for core access */ |
a39be27b | 860 | if (brcmf_sdiod_set_sbaddr_window(sdiodev, sdiodev->sbwad)) |
ba540b01 FL |
861 | brcmf_err("FAILED to set window back to 0x%x\n", |
862 | sdiodev->sbwad); | |
4c6e869d | 863 | |
ba540b01 | 864 | sdio_release_host(sdiodev->func[1]); |
4c6e869d | 865 | |
ba540b01 | 866 | return bcmerror; |
5b435de0 AS |
867 | } |
868 | ||
a39be27b | 869 | int brcmf_sdiod_abort(struct brcmf_sdio_dev *sdiodev, uint fn) |
5b435de0 AS |
870 | { |
871 | char t_func = (char)fn; | |
c3203374 | 872 | brcmf_dbg(SDIO, "Enter\n"); |
5b435de0 AS |
873 | |
874 | /* issue abort cmd52 command through F0 */ | |
71c60cf2 AS |
875 | brcmf_sdiod_request_data(sdiodev, SDIO_FUNC_0, SDIO_CCCR_ABORT, |
876 | sizeof(t_func), &t_func, true); | |
5b435de0 | 877 | |
c3203374 | 878 | brcmf_dbg(SDIO, "Exit\n"); |
5b435de0 AS |
879 | return 0; |
880 | } | |
881 | ||
e0045bf8 | 882 | void brcmf_sdiod_sgtable_alloc(struct brcmf_sdio_dev *sdiodev) |
af1fa210 | 883 | { |
e0045bf8 HM |
884 | struct sdio_func *func; |
885 | struct mmc_host *host; | |
886 | uint max_blocks; | |
af1fa210 AS |
887 | uint nents; |
888 | int err; | |
889 | ||
e0045bf8 HM |
890 | func = sdiodev->func[2]; |
891 | host = func->card->host; | |
892 | sdiodev->sg_support = host->max_segs > 1; | |
893 | max_blocks = min_t(uint, host->max_blk_count, 511u); | |
894 | sdiodev->max_request_size = min_t(uint, host->max_req_size, | |
895 | max_blocks * func->cur_blksize); | |
896 | sdiodev->max_segment_count = min_t(uint, host->max_segs, | |
897 | SG_MAX_SINGLE_ALLOC); | |
898 | sdiodev->max_segment_size = host->max_seg_size; | |
899 | ||
af1fa210 AS |
900 | if (!sdiodev->sg_support) |
901 | return; | |
902 | ||
7d34b056 HM |
903 | nents = max_t(uint, BRCMF_DEFAULT_RXGLOM_SIZE, |
904 | sdiodev->bus_if->drvr->settings->sdiod_txglomsz); | |
af1fa210 AS |
905 | nents += (nents >> 4) + 1; |
906 | ||
907 | WARN_ON(nents > sdiodev->max_segment_count); | |
908 | ||
909 | brcmf_dbg(TRACE, "nents=%d\n", nents); | |
910 | err = sg_alloc_table(&sdiodev->sgtable, nents, GFP_KERNEL); | |
911 | if (err < 0) { | |
912 | brcmf_err("allocation failed: disable scatter-gather"); | |
913 | sdiodev->sg_support = false; | |
914 | } | |
915 | ||
7d34b056 | 916 | sdiodev->txglomsz = sdiodev->bus_if->drvr->settings->sdiod_txglomsz; |
af1fa210 AS |
917 | } |
918 | ||
99824643 AS |
919 | #ifdef CONFIG_PM_SLEEP |
920 | static int brcmf_sdiod_freezer_attach(struct brcmf_sdio_dev *sdiodev) | |
921 | { | |
922 | sdiodev->freezer = kzalloc(sizeof(*sdiodev->freezer), GFP_KERNEL); | |
923 | if (!sdiodev->freezer) | |
924 | return -ENOMEM; | |
925 | atomic_set(&sdiodev->freezer->thread_count, 0); | |
926 | atomic_set(&sdiodev->freezer->freezing, 0); | |
927 | init_waitqueue_head(&sdiodev->freezer->thread_freeze); | |
928 | init_completion(&sdiodev->freezer->resumed); | |
929 | return 0; | |
930 | } | |
931 | ||
932 | static void brcmf_sdiod_freezer_detach(struct brcmf_sdio_dev *sdiodev) | |
933 | { | |
934 | if (sdiodev->freezer) { | |
935 | WARN_ON(atomic_read(&sdiodev->freezer->freezing)); | |
936 | kfree(sdiodev->freezer); | |
937 | } | |
938 | } | |
939 | ||
940 | static int brcmf_sdiod_freezer_on(struct brcmf_sdio_dev *sdiodev) | |
941 | { | |
942 | atomic_t *expect = &sdiodev->freezer->thread_count; | |
943 | int res = 0; | |
944 | ||
945 | sdiodev->freezer->frozen_count = 0; | |
946 | reinit_completion(&sdiodev->freezer->resumed); | |
947 | atomic_set(&sdiodev->freezer->freezing, 1); | |
948 | brcmf_sdio_trigger_dpc(sdiodev->bus); | |
949 | wait_event(sdiodev->freezer->thread_freeze, | |
950 | atomic_read(expect) == sdiodev->freezer->frozen_count); | |
951 | sdio_claim_host(sdiodev->func[1]); | |
952 | res = brcmf_sdio_sleep(sdiodev->bus, true); | |
953 | sdio_release_host(sdiodev->func[1]); | |
954 | return res; | |
955 | } | |
956 | ||
957 | static void brcmf_sdiod_freezer_off(struct brcmf_sdio_dev *sdiodev) | |
958 | { | |
959 | sdio_claim_host(sdiodev->func[1]); | |
960 | brcmf_sdio_sleep(sdiodev->bus, false); | |
961 | sdio_release_host(sdiodev->func[1]); | |
962 | atomic_set(&sdiodev->freezer->freezing, 0); | |
963 | complete_all(&sdiodev->freezer->resumed); | |
964 | } | |
965 | ||
966 | bool brcmf_sdiod_freezing(struct brcmf_sdio_dev *sdiodev) | |
967 | { | |
968 | return atomic_read(&sdiodev->freezer->freezing); | |
969 | } | |
970 | ||
971 | void brcmf_sdiod_try_freeze(struct brcmf_sdio_dev *sdiodev) | |
972 | { | |
973 | if (!brcmf_sdiod_freezing(sdiodev)) | |
974 | return; | |
975 | sdiodev->freezer->frozen_count++; | |
976 | wake_up(&sdiodev->freezer->thread_freeze); | |
977 | wait_for_completion(&sdiodev->freezer->resumed); | |
978 | } | |
979 | ||
980 | void brcmf_sdiod_freezer_count(struct brcmf_sdio_dev *sdiodev) | |
981 | { | |
982 | atomic_inc(&sdiodev->freezer->thread_count); | |
983 | } | |
984 | ||
985 | void brcmf_sdiod_freezer_uncount(struct brcmf_sdio_dev *sdiodev) | |
986 | { | |
987 | atomic_dec(&sdiodev->freezer->thread_count); | |
988 | } | |
989 | #else | |
990 | static int brcmf_sdiod_freezer_attach(struct brcmf_sdio_dev *sdiodev) | |
991 | { | |
992 | return 0; | |
993 | } | |
994 | ||
995 | static void brcmf_sdiod_freezer_detach(struct brcmf_sdio_dev *sdiodev) | |
996 | { | |
997 | } | |
998 | #endif /* CONFIG_PM_SLEEP */ | |
999 | ||
a39be27b AS |
1000 | static int brcmf_sdiod_remove(struct brcmf_sdio_dev *sdiodev) |
1001 | { | |
5768f31e | 1002 | sdiodev->state = BRCMF_SDIOD_DOWN; |
a39be27b | 1003 | if (sdiodev->bus) { |
9fbe2a6d | 1004 | brcmf_sdio_remove(sdiodev->bus); |
a39be27b AS |
1005 | sdiodev->bus = NULL; |
1006 | } | |
1007 | ||
99824643 AS |
1008 | brcmf_sdiod_freezer_detach(sdiodev); |
1009 | ||
a39be27b AS |
1010 | /* Disable Function 2 */ |
1011 | sdio_claim_host(sdiodev->func[2]); | |
1012 | sdio_disable_func(sdiodev->func[2]); | |
1013 | sdio_release_host(sdiodev->func[2]); | |
1014 | ||
1015 | /* Disable Function 1 */ | |
1016 | sdio_claim_host(sdiodev->func[1]); | |
1017 | sdio_disable_func(sdiodev->func[1]); | |
1018 | sdio_release_host(sdiodev->func[1]); | |
1019 | ||
af1fa210 | 1020 | sg_free_table(&sdiodev->sgtable); |
a39be27b AS |
1021 | sdiodev->sbwad = 0; |
1022 | ||
063d5177 | 1023 | pm_runtime_allow(sdiodev->func[1]->card->host->parent); |
a39be27b AS |
1024 | return 0; |
1025 | } | |
1026 | ||
bdf1340c AS |
1027 | static void brcmf_sdiod_host_fixup(struct mmc_host *host) |
1028 | { | |
1029 | /* runtime-pm powers off the device */ | |
1030 | pm_runtime_forbid(host->parent); | |
1031 | /* avoid removal detection upon resume */ | |
1032 | host->caps |= MMC_CAP_NONREMOVABLE; | |
1033 | } | |
1034 | ||
a39be27b | 1035 | static int brcmf_sdiod_probe(struct brcmf_sdio_dev *sdiodev) |
e2dc9eea | 1036 | { |
a39be27b | 1037 | int ret = 0; |
e2dc9eea AS |
1038 | |
1039 | sdiodev->num_funcs = 2; | |
1040 | ||
1041 | sdio_claim_host(sdiodev->func[1]); | |
1042 | ||
a39be27b AS |
1043 | ret = sdio_set_block_size(sdiodev->func[1], SDIO_FUNC1_BLOCKSIZE); |
1044 | if (ret) { | |
e2dc9eea | 1045 | brcmf_err("Failed to set F1 blocksize\n"); |
a39be27b | 1046 | sdio_release_host(sdiodev->func[1]); |
e2dc9eea AS |
1047 | goto out; |
1048 | } | |
a39be27b AS |
1049 | ret = sdio_set_block_size(sdiodev->func[2], SDIO_FUNC2_BLOCKSIZE); |
1050 | if (ret) { | |
e2dc9eea | 1051 | brcmf_err("Failed to set F2 blocksize\n"); |
a39be27b | 1052 | sdio_release_host(sdiodev->func[1]); |
e2dc9eea AS |
1053 | goto out; |
1054 | } | |
1055 | ||
71370eb8 AS |
1056 | /* increase F2 timeout */ |
1057 | sdiodev->func[2]->enable_timeout = SDIO_WAIT_F2RDY; | |
1058 | ||
463c30b3 | 1059 | /* Enable Function 1 */ |
a39be27b AS |
1060 | ret = sdio_enable_func(sdiodev->func[1]); |
1061 | sdio_release_host(sdiodev->func[1]); | |
1062 | if (ret) { | |
1063 | brcmf_err("Failed to enable F1: err=%d\n", ret); | |
463c30b3 AS |
1064 | goto out; |
1065 | } | |
e2dc9eea | 1066 | |
99824643 AS |
1067 | ret = brcmf_sdiod_freezer_attach(sdiodev); |
1068 | if (ret) | |
1069 | goto out; | |
1070 | ||
e49b06ba | 1071 | /* try to attach to the target device */ |
82d7f3c1 | 1072 | sdiodev->bus = brcmf_sdio_probe(sdiodev); |
e49b06ba | 1073 | if (!sdiodev->bus) { |
e49b06ba AS |
1074 | ret = -ENODEV; |
1075 | goto out; | |
1076 | } | |
e0045bf8 | 1077 | brcmf_sdiod_host_fixup(sdiodev->func[2]->card->host); |
e49b06ba AS |
1078 | out: |
1079 | if (ret) | |
a39be27b | 1080 | brcmf_sdiod_remove(sdiodev); |
e49b06ba AS |
1081 | |
1082 | return ret; | |
1083 | } | |
1084 | ||
5779ae6a | 1085 | #define BRCMF_SDIO_DEVICE(dev_id) \ |
8bd61f8d | 1086 | {SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, dev_id)} |
5779ae6a | 1087 | |
e49b06ba AS |
1088 | /* devices we support, null terminated */ |
1089 | static const struct sdio_device_id brcmf_sdmmc_ids[] = { | |
8bd61f8d AS |
1090 | BRCMF_SDIO_DEVICE(SDIO_DEVICE_ID_BROADCOM_43143), |
1091 | BRCMF_SDIO_DEVICE(SDIO_DEVICE_ID_BROADCOM_43241), | |
1092 | BRCMF_SDIO_DEVICE(SDIO_DEVICE_ID_BROADCOM_4329), | |
1093 | BRCMF_SDIO_DEVICE(SDIO_DEVICE_ID_BROADCOM_4330), | |
1094 | BRCMF_SDIO_DEVICE(SDIO_DEVICE_ID_BROADCOM_4334), | |
1095 | BRCMF_SDIO_DEVICE(SDIO_DEVICE_ID_BROADCOM_43340), | |
1096 | BRCMF_SDIO_DEVICE(SDIO_DEVICE_ID_BROADCOM_43341), | |
1097 | BRCMF_SDIO_DEVICE(SDIO_DEVICE_ID_BROADCOM_43362), | |
1098 | BRCMF_SDIO_DEVICE(SDIO_DEVICE_ID_BROADCOM_4335_4339), | |
25911556 | 1099 | BRCMF_SDIO_DEVICE(SDIO_DEVICE_ID_BROADCOM_43430), |
9c510265 | 1100 | BRCMF_SDIO_DEVICE(SDIO_DEVICE_ID_BROADCOM_4345), |
8bd61f8d | 1101 | BRCMF_SDIO_DEVICE(SDIO_DEVICE_ID_BROADCOM_4354), |
5779ae6a | 1102 | { /* end: all zeroes */ } |
e49b06ba AS |
1103 | }; |
1104 | MODULE_DEVICE_TABLE(sdio, brcmf_sdmmc_ids); | |
1105 | ||
1106 | static struct brcmfmac_sdio_platform_data *brcmfmac_sdio_pdata; | |
1107 | ||
1108 | ||
00e27eeb AS |
1109 | static void brcmf_sdiod_acpi_set_power_manageable(struct device *dev, |
1110 | int val) | |
1111 | { | |
1112 | #if IS_ENABLED(CONFIG_ACPI) | |
1113 | struct acpi_device *adev; | |
1114 | ||
1115 | adev = ACPI_COMPANION(dev); | |
1116 | if (adev) | |
1117 | adev->flags.power_manageable = 0; | |
1118 | #endif | |
1119 | } | |
1120 | ||
e2dc9eea AS |
1121 | static int brcmf_ops_sdio_probe(struct sdio_func *func, |
1122 | const struct sdio_device_id *id) | |
1123 | { | |
1124 | int err; | |
1125 | struct brcmf_sdio_dev *sdiodev; | |
1126 | struct brcmf_bus *bus_if; | |
f0992ace | 1127 | struct device *dev; |
e2dc9eea AS |
1128 | |
1129 | brcmf_dbg(SDIO, "Enter\n"); | |
1130 | brcmf_dbg(SDIO, "Class=%x\n", func->class); | |
1131 | brcmf_dbg(SDIO, "sdio vendor ID: 0x%04x\n", func->vendor); | |
1132 | brcmf_dbg(SDIO, "sdio device ID: 0x%04x\n", func->device); | |
1133 | brcmf_dbg(SDIO, "Function#: %d\n", func->num); | |
1134 | ||
f0992ace | 1135 | dev = &func->dev; |
00e27eeb AS |
1136 | /* prohibit ACPI power management for this device */ |
1137 | brcmf_sdiod_acpi_set_power_manageable(dev, 0); | |
f0992ace | 1138 | |
e2dc9eea AS |
1139 | /* Consume func num 1 but dont do anything with it. */ |
1140 | if (func->num == 1) | |
1141 | return 0; | |
1142 | ||
1143 | /* Ignore anything but func 2 */ | |
1144 | if (func->num != 2) | |
1145 | return -ENODEV; | |
1146 | ||
1147 | bus_if = kzalloc(sizeof(struct brcmf_bus), GFP_KERNEL); | |
1148 | if (!bus_if) | |
1149 | return -ENOMEM; | |
1150 | sdiodev = kzalloc(sizeof(struct brcmf_sdio_dev), GFP_KERNEL); | |
1151 | if (!sdiodev) { | |
1152 | kfree(bus_if); | |
1153 | return -ENOMEM; | |
1154 | } | |
1155 | ||
36c4e7e4 AS |
1156 | /* store refs to functions used. mmc_card does |
1157 | * not hold the F0 function pointer. | |
1158 | */ | |
1159 | sdiodev->func[0] = kmemdup(func, sizeof(*func), GFP_KERNEL); | |
1160 | sdiodev->func[0]->num = 0; | |
e2dc9eea AS |
1161 | sdiodev->func[1] = func->card->sdio_func[0]; |
1162 | sdiodev->func[2] = func; | |
1163 | ||
1164 | sdiodev->bus_if = bus_if; | |
1165 | bus_if->bus_priv.sdio = sdiodev; | |
943258b6 | 1166 | bus_if->proto_type = BRCMF_PROTO_BCDC; |
e2dc9eea AS |
1167 | dev_set_drvdata(&func->dev, bus_if); |
1168 | dev_set_drvdata(&sdiodev->func[1]->dev, bus_if); | |
1169 | sdiodev->dev = &sdiodev->func[1]->dev; | |
1170 | sdiodev->pdata = brcmfmac_sdio_pdata; | |
1171 | ||
61f663df CYT |
1172 | if (!sdiodev->pdata) |
1173 | brcmf_of_probe(sdiodev); | |
1174 | ||
330b4e4b HM |
1175 | #ifdef CONFIG_PM_SLEEP |
1176 | /* wowl can be supported when KEEP_POWER is true and (WAKE_SDIO_IRQ | |
1177 | * is true or when platform data OOB irq is true). | |
1178 | */ | |
1179 | if ((sdio_get_host_pm_caps(sdiodev->func[1]) & MMC_PM_KEEP_POWER) && | |
1180 | ((sdio_get_host_pm_caps(sdiodev->func[1]) & MMC_PM_WAKE_SDIO_IRQ) || | |
8975842b | 1181 | (sdiodev->pdata && sdiodev->pdata->oob_irq_supported))) |
330b4e4b HM |
1182 | bus_if->wowl_supported = true; |
1183 | #endif | |
1184 | ||
a1ce7a0d | 1185 | brcmf_sdiod_change_state(sdiodev, BRCMF_SDIOD_DOWN); |
e2dc9eea | 1186 | |
a39be27b AS |
1187 | brcmf_dbg(SDIO, "F2 found, calling brcmf_sdiod_probe...\n"); |
1188 | err = brcmf_sdiod_probe(sdiodev); | |
e2dc9eea AS |
1189 | if (err) { |
1190 | brcmf_err("F2 error, probe failed %d...\n", err); | |
1191 | goto fail; | |
1192 | } | |
1193 | ||
1194 | brcmf_dbg(SDIO, "F2 init completed...\n"); | |
1195 | return 0; | |
1196 | ||
1197 | fail: | |
1198 | dev_set_drvdata(&func->dev, NULL); | |
1199 | dev_set_drvdata(&sdiodev->func[1]->dev, NULL); | |
36c4e7e4 | 1200 | kfree(sdiodev->func[0]); |
e2dc9eea AS |
1201 | kfree(sdiodev); |
1202 | kfree(bus_if); | |
1203 | return err; | |
1204 | } | |
1205 | ||
1206 | static void brcmf_ops_sdio_remove(struct sdio_func *func) | |
1207 | { | |
1208 | struct brcmf_bus *bus_if; | |
1209 | struct brcmf_sdio_dev *sdiodev; | |
1210 | ||
1211 | brcmf_dbg(SDIO, "Enter\n"); | |
1212 | brcmf_dbg(SDIO, "sdio vendor ID: 0x%04x\n", func->vendor); | |
1213 | brcmf_dbg(SDIO, "sdio device ID: 0x%04x\n", func->device); | |
1214 | brcmf_dbg(SDIO, "Function: %d\n", func->num); | |
1215 | ||
de6878c8 | 1216 | if (func->num != 1) |
e2dc9eea AS |
1217 | return; |
1218 | ||
1219 | bus_if = dev_get_drvdata(&func->dev); | |
1220 | if (bus_if) { | |
1221 | sdiodev = bus_if->bus_priv.sdio; | |
a39be27b | 1222 | brcmf_sdiod_remove(sdiodev); |
e2dc9eea AS |
1223 | |
1224 | dev_set_drvdata(&sdiodev->func[1]->dev, NULL); | |
1225 | dev_set_drvdata(&sdiodev->func[2]->dev, NULL); | |
1226 | ||
1227 | kfree(bus_if); | |
36c4e7e4 | 1228 | kfree(sdiodev->func[0]); |
e2dc9eea AS |
1229 | kfree(sdiodev); |
1230 | } | |
1231 | ||
1232 | brcmf_dbg(SDIO, "Exit\n"); | |
1233 | } | |
1234 | ||
330b4e4b HM |
1235 | void brcmf_sdio_wowl_config(struct device *dev, bool enabled) |
1236 | { | |
1237 | struct brcmf_bus *bus_if = dev_get_drvdata(dev); | |
1238 | struct brcmf_sdio_dev *sdiodev = bus_if->bus_priv.sdio; | |
1239 | ||
1240 | brcmf_dbg(SDIO, "Configuring WOWL, enabled=%d\n", enabled); | |
1241 | sdiodev->wowl_enabled = enabled; | |
1242 | } | |
1243 | ||
e2dc9eea | 1244 | #ifdef CONFIG_PM_SLEEP |
a39be27b | 1245 | static int brcmf_ops_sdio_suspend(struct device *dev) |
e2dc9eea | 1246 | { |
99824643 | 1247 | struct sdio_func *func; |
8982cd40 AS |
1248 | struct brcmf_bus *bus_if; |
1249 | struct brcmf_sdio_dev *sdiodev; | |
330b4e4b | 1250 | mmc_pm_flag_t sdio_flags; |
e2dc9eea | 1251 | |
99824643 AS |
1252 | func = container_of(dev, struct sdio_func, dev); |
1253 | brcmf_dbg(SDIO, "Enter: F%d\n", func->num); | |
1254 | if (func->num != SDIO_FUNC_1) | |
1255 | return 0; | |
1256 | ||
e2dc9eea | 1257 | |
8982cd40 AS |
1258 | bus_if = dev_get_drvdata(dev); |
1259 | sdiodev = bus_if->bus_priv.sdio; | |
1260 | ||
99824643 | 1261 | brcmf_sdiod_freezer_on(sdiodev); |
8982cd40 | 1262 | brcmf_sdio_wd_timer(sdiodev->bus, 0); |
3e3831c4 | 1263 | |
bdf1340c | 1264 | sdio_flags = MMC_PM_KEEP_POWER; |
330b4e4b | 1265 | if (sdiodev->wowl_enabled) { |
330b4e4b HM |
1266 | if (sdiodev->pdata->oob_irq_supported) |
1267 | enable_irq_wake(sdiodev->pdata->oob_irq_nr); | |
1268 | else | |
bdf1340c | 1269 | sdio_flags |= MMC_PM_WAKE_SDIO_IRQ; |
e2dc9eea | 1270 | } |
bdf1340c AS |
1271 | if (sdio_set_host_pm_flags(sdiodev->func[1], sdio_flags)) |
1272 | brcmf_err("Failed to set pm_flags %x\n", sdio_flags); | |
330b4e4b | 1273 | return 0; |
e2dc9eea AS |
1274 | } |
1275 | ||
a39be27b | 1276 | static int brcmf_ops_sdio_resume(struct device *dev) |
e2dc9eea AS |
1277 | { |
1278 | struct brcmf_bus *bus_if = dev_get_drvdata(dev); | |
1279 | struct brcmf_sdio_dev *sdiodev = bus_if->bus_priv.sdio; | |
99824643 | 1280 | struct sdio_func *func = container_of(dev, struct sdio_func, dev); |
e2dc9eea | 1281 | |
99824643 AS |
1282 | brcmf_dbg(SDIO, "Enter: F%d\n", func->num); |
1283 | if (func->num != SDIO_FUNC_2) | |
1284 | return 0; | |
1285 | ||
1286 | brcmf_sdiod_freezer_off(sdiodev); | |
e2dc9eea AS |
1287 | return 0; |
1288 | } | |
1289 | ||
1290 | static const struct dev_pm_ops brcmf_sdio_pm_ops = { | |
a39be27b AS |
1291 | .suspend = brcmf_ops_sdio_suspend, |
1292 | .resume = brcmf_ops_sdio_resume, | |
e2dc9eea AS |
1293 | }; |
1294 | #endif /* CONFIG_PM_SLEEP */ | |
1295 | ||
1296 | static struct sdio_driver brcmf_sdmmc_driver = { | |
1297 | .probe = brcmf_ops_sdio_probe, | |
1298 | .remove = brcmf_ops_sdio_remove, | |
1299 | .name = BRCMFMAC_SDIO_PDATA_NAME, | |
1300 | .id_table = brcmf_sdmmc_ids, | |
e2dc9eea | 1301 | .drv = { |
0b0acd8c FL |
1302 | .owner = THIS_MODULE, |
1303 | #ifdef CONFIG_PM_SLEEP | |
e2dc9eea | 1304 | .pm = &brcmf_sdio_pm_ops, |
e2dc9eea | 1305 | #endif /* CONFIG_PM_SLEEP */ |
0b0acd8c | 1306 | }, |
e2dc9eea AS |
1307 | }; |
1308 | ||
c2d23c70 | 1309 | static int __init brcmf_sdio_pd_probe(struct platform_device *pdev) |
e2dc9eea AS |
1310 | { |
1311 | brcmf_dbg(SDIO, "Enter\n"); | |
1312 | ||
1313 | brcmfmac_sdio_pdata = dev_get_platdata(&pdev->dev); | |
1314 | ||
1315 | if (brcmfmac_sdio_pdata->power_on) | |
1316 | brcmfmac_sdio_pdata->power_on(); | |
1317 | ||
1318 | return 0; | |
1319 | } | |
1320 | ||
1321 | static int brcmf_sdio_pd_remove(struct platform_device *pdev) | |
1322 | { | |
1323 | brcmf_dbg(SDIO, "Enter\n"); | |
1324 | ||
1325 | if (brcmfmac_sdio_pdata->power_off) | |
1326 | brcmfmac_sdio_pdata->power_off(); | |
1327 | ||
1328 | sdio_unregister_driver(&brcmf_sdmmc_driver); | |
1329 | ||
1330 | return 0; | |
1331 | } | |
1332 | ||
1333 | static struct platform_driver brcmf_sdio_pd = { | |
1334 | .remove = brcmf_sdio_pd_remove, | |
1335 | .driver = { | |
1336 | .name = BRCMFMAC_SDIO_PDATA_NAME, | |
e2dc9eea AS |
1337 | } |
1338 | }; | |
1339 | ||
1340 | void brcmf_sdio_register(void) | |
1341 | { | |
1342 | int ret; | |
1343 | ||
1344 | ret = sdio_register_driver(&brcmf_sdmmc_driver); | |
1345 | if (ret) | |
1346 | brcmf_err("sdio_register_driver failed: %d\n", ret); | |
1347 | } | |
1348 | ||
1349 | void brcmf_sdio_exit(void) | |
1350 | { | |
1351 | brcmf_dbg(SDIO, "Enter\n"); | |
1352 | ||
1353 | if (brcmfmac_sdio_pdata) | |
1354 | platform_driver_unregister(&brcmf_sdio_pd); | |
1355 | else | |
1356 | sdio_unregister_driver(&brcmf_sdmmc_driver); | |
1357 | } | |
1358 | ||
1359 | void __init brcmf_sdio_init(void) | |
1360 | { | |
1361 | int ret; | |
1362 | ||
1363 | brcmf_dbg(SDIO, "Enter\n"); | |
1364 | ||
1365 | ret = platform_driver_probe(&brcmf_sdio_pd, brcmf_sdio_pd_probe); | |
1366 | if (ret == -ENODEV) | |
1367 | brcmf_dbg(SDIO, "No platform data available.\n"); | |
1368 | } |