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mwifiex: update MCS information as per antenna settings
[mirror_ubuntu-artful-kernel.git] / drivers / net / wireless / brcm80211 / brcmfmac / bcmsdh.c
CommitLineData
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 27#include <linux/mmc/sdio_func.h>
e2dc9eea 28#include <linux/mmc/sdio_ids.h>
5b435de0 29#include <linux/mmc/card.h>
e2dc9eea
AS		 30#include <linux/mmc/host.h>
31#include <linux/platform_device.h>
668761ac 32#include <linux/platform_data/brcmfmac-sdio.h>
e2dc9eea
AS		 33#include <linux/suspend.h>
34#include <linux/errno.h>
35#include <linux/module.h>
36#include <net/cfg80211.h>
5b435de0
AS		 37
38#include <defs.h>
39#include <brcm_hw_ids.h>
40#include <brcmu_utils.h>
41#include <brcmu_wifi.h>
42#include <soc.h>
5b435de0
AS		 43#include "dhd_bus.h"
44#include "dhd_dbg.h"
45#include "sdio_host.h"
46
47#define SDIOH_API_ACCESS_RETRY_LIMIT 2
48
e49b06ba
AS		 49#define DMA_ALIGN_MASK 0x03
50
51#define SDIO_FUNC1_BLOCKSIZE 64
52#define SDIO_FUNC2_BLOCKSIZE 512
71370eb8
AS		 53/* Maximum milliseconds to wait for F2 to come up */
54#define SDIO_WAIT_F2RDY 3000
55
af1fa210
AS		 56#define BRCMF_DEFAULT_TXGLOM_SIZE 32 /* max tx frames in glom chain */
57#define BRCMF_DEFAULT_RXGLOM_SIZE 32 /* max rx frames in glom chain */
58
59static int brcmf_sdiod_txglomsz = BRCMF_DEFAULT_TXGLOM_SIZE;
60module_param_named(txglomsz, brcmf_sdiod_txglomsz, int, 0);
61MODULE_PARM_DESC(txglomsz, "maximum tx packet chain size [SDIO]");
668761ac 62
a39be27b 63static irqreturn_t brcmf_sdiod_oob_irqhandler(int irq, void *dev_id)
ba89bf19 64{
5b3c1832
HM		 65 struct brcmf_bus *bus_if = dev_get_drvdata(dev_id);
66 struct brcmf_sdio_dev *sdiodev = bus_if->bus_priv.sdio;
ba89bf19 67
668761ac 68 brcmf_dbg(INTR, "OOB intr triggered\n");
ba89bf19 69
668761ac 70 /* out-of-band interrupt is level-triggered which won't
ba89bf19
FL		 71 * be cleared until dpc
72 */
73 if (sdiodev->irq_en) {
74 disable_irq_nosync(irq);
75 sdiodev->irq_en = false;
76 }
77
82d7f3c1 78 brcmf_sdio_isr(sdiodev->bus);
ba89bf19
FL		 79
80 return IRQ_HANDLED;
81}
82
a39be27b 83static void brcmf_sdiod_ib_irqhandler(struct sdio_func *func)
5b435de0 84{
5b3c1832
HM		 85 struct brcmf_bus *bus_if = dev_get_drvdata(&func->dev);
86 struct brcmf_sdio_dev *sdiodev = bus_if->bus_priv.sdio;
5b435de0 87
668761ac 88 brcmf_dbg(INTR, "IB intr triggered\n");
5b435de0 89
82d7f3c1 90 brcmf_sdio_isr(sdiodev->bus);
5b435de0
AS		 91}
92
fbf59108 93/* dummy handler for SDIO function 2 interrupt */
a39be27b 94static void brcmf_sdiod_dummy_irqhandler(struct sdio_func *func)
fbf59108
FL		 95{
96}
97
a39be27b 98static bool brcmf_sdiod_pm_resume_error(struct brcmf_sdio_dev *sdiodev)
e49b06ba
AS		 99{
100 bool is_err = false;
101#ifdef CONFIG_PM_SLEEP
102 is_err = atomic_read(&sdiodev->suspend);
103#endif
104 return is_err;
105}
106
a39be27b
AS		 107static void brcmf_sdiod_pm_resume_wait(struct brcmf_sdio_dev *sdiodev,
108 wait_queue_head_t *wq)
e49b06ba
AS		 109{
110#ifdef CONFIG_PM_SLEEP
111 int retry = 0;
112 while (atomic_read(&sdiodev->suspend) && retry++ != 30)
113 wait_event_timeout(*wq, false, HZ/100);
114#endif
115}
116
a39be27b 117int brcmf_sdiod_intr_register(struct brcmf_sdio_dev *sdiodev)
5b435de0 118{
668761ac
HM		 119 int ret = 0;
120 u8 data;
121 unsigned long flags;
5b435de0 122
668761ac
HM		 123 if ((sdiodev->pdata) && (sdiodev->pdata->oob_irq_supported)) {
124 brcmf_dbg(SDIO, "Enter, register OOB IRQ %d\n",
125 sdiodev->pdata->oob_irq_nr);
126 ret = request_irq(sdiodev->pdata->oob_irq_nr,
a39be27b 127 brcmf_sdiod_oob_irqhandler,
668761ac
HM		 128 sdiodev->pdata->oob_irq_flags,
129 "brcmf_oob_intr",
130 &sdiodev->func[1]->dev);
131 if (ret != 0) {
132 brcmf_err("request_irq failed %d\n", ret);
133 return ret;
134 }
135 sdiodev->oob_irq_requested = true;
136 spin_lock_init(&sdiodev->irq_en_lock);
137 spin_lock_irqsave(&sdiodev->irq_en_lock, flags);
138 sdiodev->irq_en = true;
139 spin_unlock_irqrestore(&sdiodev->irq_en_lock, flags);
140
141 ret = enable_irq_wake(sdiodev->pdata->oob_irq_nr);
142 if (ret != 0) {
143 brcmf_err("enable_irq_wake failed %d\n", ret);
144 return ret;
145 }
146 sdiodev->irq_wake = true;
147
148 sdio_claim_host(sdiodev->func[1]);
149
150 /* must configure SDIO_CCCR_IENx to enable irq */
a39be27b 151 data = brcmf_sdiod_regrb(sdiodev, SDIO_CCCR_IENx, &ret);
668761ac 152 data |= 1 << SDIO_FUNC_1 | 1 << SDIO_FUNC_2 | 1;
a39be27b 153 brcmf_sdiod_regwb(sdiodev, SDIO_CCCR_IENx, data, &ret);
668761ac
HM		 154
155 /* redirect, configure and enable io for interrupt signal */
156 data = SDIO_SEPINT_MASK | SDIO_SEPINT_OE;
157 if (sdiodev->pdata->oob_irq_flags & IRQF_TRIGGER_HIGH)
158 data |= SDIO_SEPINT_ACT_HI;
a39be27b 159 brcmf_sdiod_regwb(sdiodev, SDIO_CCCR_BRCM_SEPINT, data, &ret);
668761ac
HM		 160
161 sdio_release_host(sdiodev->func[1]);
162 } else {
163 brcmf_dbg(SDIO, "Entering\n");
164 sdio_claim_host(sdiodev->func[1]);
a39be27b
AS		 165 sdio_claim_irq(sdiodev->func[1], brcmf_sdiod_ib_irqhandler);
166 sdio_claim_irq(sdiodev->func[2], brcmf_sdiod_dummy_irqhandler);
668761ac
HM		 167 sdio_release_host(sdiodev->func[1]);
168 }
5b435de0
AS		 169
170 return 0;
171}
172
a39be27b 173int brcmf_sdiod_intr_unregister(struct brcmf_sdio_dev *sdiodev)
5b435de0 174{
c3203374 175 brcmf_dbg(SDIO, "Entering\n");
5b435de0 176
668761ac
HM		 177 if ((sdiodev->pdata) && (sdiodev->pdata->oob_irq_supported)) {
178 sdio_claim_host(sdiodev->func[1]);
a39be27b
AS		 179 brcmf_sdiod_regwb(sdiodev, SDIO_CCCR_BRCM_SEPINT, 0, NULL);
180 brcmf_sdiod_regwb(sdiodev, SDIO_CCCR_IENx, 0, NULL);
668761ac
HM		 181 sdio_release_host(sdiodev->func[1]);
182
183 if (sdiodev->oob_irq_requested) {
184 sdiodev->oob_irq_requested = false;
185 if (sdiodev->irq_wake) {
186 disable_irq_wake(sdiodev->pdata->oob_irq_nr);
187 sdiodev->irq_wake = false;
188 }
189 free_irq(sdiodev->pdata->oob_irq_nr,
190 &sdiodev->func[1]->dev);
191 sdiodev->irq_en = false;
192 }
193 } else {
194 sdio_claim_host(sdiodev->func[1]);
195 sdio_release_irq(sdiodev->func[2]);
196 sdio_release_irq(sdiodev->func[1]);
197 sdio_release_host(sdiodev->func[1]);
198 }
5b435de0
AS		 199
200 return 0;
201}
202
36c4e7e4
AS		 203static inline int brcmf_sdiod_f0_writeb(struct sdio_func *func,
204 uint regaddr, u8 byte)
e49b06ba 205{
e49b06ba
AS		 206 int err_ret;
207
208 /*
209 * Can only directly write to some F0 registers.
36c4e7e4 210 * Handle CCCR_IENx and CCCR_ABORT command
e49b06ba
AS		 211 * as a special case.
212 */
71370eb8 213 if ((regaddr == SDIO_CCCR_ABORT) ||
36c4e7e4
AS		 214 (regaddr == SDIO_CCCR_IENx))
215 sdio_writeb(func, byte, regaddr, &err_ret);
216 else
217 sdio_f0_writeb(func, byte, regaddr, &err_ret);
e49b06ba
AS		 218
219 return err_ret;
220}
221
71c60cf2
AS		 222static int brcmf_sdiod_request_data(struct brcmf_sdio_dev *sdiodev, u8 fn,
223 u32 addr, u8 regsz, void *data, bool write)
e49b06ba 224{
71c60cf2
AS		 225 struct sdio_func *func;
226 int ret;
e49b06ba 227
71c60cf2
AS		 228 brcmf_dbg(SDIO, "rw=%d, func=%d, addr=0x%05x, nbytes=%d\n",
229 write, fn, addr, regsz);
e49b06ba 230
71c60cf2 231 brcmf_sdiod_pm_resume_wait(sdiodev, &sdiodev->request_word_wait);
a39be27b 232 if (brcmf_sdiod_pm_resume_error(sdiodev))
e49b06ba
AS		 233 return -EIO;
234
71c60cf2
AS		 235 /* only allow byte access on F0 */
236 if (WARN_ON(regsz > 1 && !fn))
237 return -EINVAL;
238 func = sdiodev->func[fn];
239
240 switch (regsz) {
241 case sizeof(u8):
242 if (write) {
243 if (fn)
244 sdio_writeb(func, *(u8 *)data, addr, &ret);
245 else
246 ret = brcmf_sdiod_f0_writeb(func, addr,
247 *(u8 *)data);
e49b06ba 248 } else {
71c60cf2
AS		 249 if (fn)
250 *(u8 *)data = sdio_readb(func, addr, &ret);
251 else
252 *(u8 *)data = sdio_f0_readb(func, addr, &ret);
e49b06ba 253 }
71c60cf2
AS		 254 break;
255 case sizeof(u16):
256 if (write)
257 sdio_writew(func, *(u16 *)data, addr, &ret);
258 else
259 *(u16 *)data = sdio_readw(func, addr, &ret);
260 break;
261 case sizeof(u32):
262 if (write)
263 sdio_writel(func, *(u32 *)data, addr, &ret);
264 else
265 *(u32 *)data = sdio_readl(func, addr, &ret);
266 break;
267 default:
268 brcmf_err("invalid size: %d\n", regsz);
269 break;
e49b06ba
AS		 270 }
271
71c60cf2 272 if (ret) {
e49b06ba
AS		 273 /*
274 * SleepCSR register access can fail when
275 * waking up the device so reduce this noise
276 * in the logs.
277 */
71c60cf2
AS		 278 if (addr != SBSDIO_FUNC1_SLEEPCSR)
279 brcmf_err("failed to %s data F%d@0x%05x, err: %d\n",
280 write ? "write" : "read", fn, addr, ret);
e49b06ba 281 else
71c60cf2
AS		 282 brcmf_dbg(SDIO, "failed to %s data F%d@0x%05x, err: %d\n",
283 write ? "write" : "read", fn, addr, ret);
e49b06ba 284 }
71c60cf2 285 return ret;
e49b06ba
AS		 286}
287
71c60cf2
AS		 288static int brcmf_sdiod_regrw_helper(struct brcmf_sdio_dev *sdiodev, u32 addr,
289 u8 regsz, void *data, bool write)
e49b06ba 290{
71c60cf2
AS		 291 u8 func_num;
292 s32 retry = 0;
293 int ret;
e49b06ba 294
bb350711
AS		 295 if (sdiodev->bus_if->state == BRCMF_BUS_NOMEDIUM)
296 return -ENOMEDIUM;
297
71c60cf2
AS		 298 /*
299 * figure out how to read the register based on address range
300 * 0x00 ~ 0x7FF: function 0 CCCR and FBR
301 * 0x10000 ~ 0x1FFFF: function 1 miscellaneous registers
302 * The rest: function 1 silicon backplane core registers
303 */
304 if ((addr & ~REG_F0_REG_MASK) == 0)
305 func_num = SDIO_FUNC_0;
306 else
307 func_num = SDIO_FUNC_1;
e49b06ba 308
71c60cf2
AS		 309 do {
310 if (!write)
311 memset(data, 0, regsz);
312 /* for retry wait for 1 ms till bus get settled down */
313 if (retry)
314 usleep_range(1000, 2000);
315 ret = brcmf_sdiod_request_data(sdiodev, func_num, addr, regsz,
316 data, write);
bb350711
AS		 317 } while (ret != 0 && ret != -ENOMEDIUM &&
318 retry++ < SDIOH_API_ACCESS_RETRY_LIMIT);
e49b06ba 319
bb350711
AS		 320 if (ret == -ENOMEDIUM)
321 brcmf_bus_change_state(sdiodev->bus_if, BRCMF_BUS_NOMEDIUM);
322 else if (ret != 0)
71c60cf2 323 brcmf_err("failed with %d\n", ret);
e49b06ba 324
71c60cf2 325 return ret;
e49b06ba
AS		 326}
327
356bae6f 328static int
a39be27b 329brcmf_sdiod_set_sbaddr_window(struct brcmf_sdio_dev *sdiodev, u32 address)
5b435de0 330{
7d9cfc28
FL		 331 int err = 0, i;
332 u8 addr[3];
7d9cfc28 333
bb350711
AS		 334 if (sdiodev->bus_if->state == BRCMF_BUS_NOMEDIUM)
335 return -ENOMEDIUM;
336
7d9cfc28
FL		 337 addr[0] = (address >> 8) & SBSDIO_SBADDRLOW_MASK;
338 addr[1] = (address >> 16) & SBSDIO_SBADDRMID_MASK;
339 addr[2] = (address >> 24) & SBSDIO_SBADDRHIGH_MASK;
340
341 for (i = 0; i < 3; i++) {
71c60cf2
AS		 342 err = brcmf_sdiod_regrw_helper(sdiodev,
343 SBSDIO_FUNC1_SBADDRLOW + i,
344 sizeof(u8), &addr[i], true);
7d9cfc28 345 if (err) {
71c60cf2 346 brcmf_err("failed at addr: 0x%0x\n",
7d9cfc28
FL		 347 SBSDIO_FUNC1_SBADDRLOW + i);
348 break;
349 }
350 }
5b435de0
AS		 351
352 return err;
353}
354
356bae6f 355static int
a39be27b 356brcmf_sdiod_addrprep(struct brcmf_sdio_dev *sdiodev, uint width, u32 *addr)
356bae6f
FL		 357{
358 uint bar0 = *addr & ~SBSDIO_SB_OFT_ADDR_MASK;
359 int err = 0;
360
361 if (bar0 != sdiodev->sbwad) {
a39be27b 362 err = brcmf_sdiod_set_sbaddr_window(sdiodev, bar0);
356bae6f
FL		 363 if (err)
364 return err;
365
366 sdiodev->sbwad = bar0;
367 }
368
369 *addr &= SBSDIO_SB_OFT_ADDR_MASK;
370
371 if (width == 4)
372 *addr |= SBSDIO_SB_ACCESS_2_4B_FLAG;
373
374 return 0;
375}
376
a39be27b 377u8 brcmf_sdiod_regrb(struct brcmf_sdio_dev *sdiodev, u32 addr, int *ret)
e9b8d91d
FL		 378{
379 u8 data;
380 int retval;
381
c3203374 382 brcmf_dbg(SDIO, "addr:0x%08x\n", addr);
71c60cf2
AS		 383 retval = brcmf_sdiod_regrw_helper(sdiodev, addr, sizeof(data), &data,
384 false);
c3203374 385 brcmf_dbg(SDIO, "data:0x%02x\n", data);
e9b8d91d
FL		 386
387 if (ret)
388 *ret = retval;
389
390 return data;
391}
392
a39be27b 393u32 brcmf_sdiod_regrl(struct brcmf_sdio_dev *sdiodev, u32 addr, int *ret)
e9b8d91d
FL		 394{
395 u32 data;
396 int retval;
397
c3203374 398 brcmf_dbg(SDIO, "addr:0x%08x\n", addr);
71c60cf2
AS		 399 retval = brcmf_sdiod_addrprep(sdiodev, sizeof(data), &addr);
400 if (retval)
401 goto done;
402 retval = brcmf_sdiod_regrw_helper(sdiodev, addr, sizeof(data), &data,
403 false);
c3203374 404 brcmf_dbg(SDIO, "data:0x%08x\n", data);
e9b8d91d 405
71c60cf2 406done:
e9b8d91d
FL		 407 if (ret)
408 *ret = retval;
409
410 return data;
411}
412
a39be27b 413void brcmf_sdiod_regwb(struct brcmf_sdio_dev *sdiodev, u32 addr,
e9b8d91d
FL		 414 u8 data, int *ret)
415{
416 int retval;
417
c3203374 418 brcmf_dbg(SDIO, "addr:0x%08x, data:0x%02x\n", addr, data);
71c60cf2
AS		 419 retval = brcmf_sdiod_regrw_helper(sdiodev, addr, sizeof(data), &data,
420 true);
e9b8d91d
FL		 421 if (ret)
422 *ret = retval;
423}
424
a39be27b 425void brcmf_sdiod_regwl(struct brcmf_sdio_dev *sdiodev, u32 addr,
e9b8d91d
FL		 426 u32 data, int *ret)
427{
428 int retval;
429
c3203374 430 brcmf_dbg(SDIO, "addr:0x%08x, data:0x%08x\n", addr, data);
71c60cf2
AS		 431 retval = brcmf_sdiod_addrprep(sdiodev, sizeof(data), &addr);
432 if (retval)
433 goto done;
434 retval = brcmf_sdiod_regrw_helper(sdiodev, addr, sizeof(data), &data,
435 true);
e9b8d91d 436
71c60cf2 437done:
e9b8d91d
FL		 438 if (ret)
439 *ret = retval;
440}
441
a39be27b 442static int brcmf_sdiod_buffrw(struct brcmf_sdio_dev *sdiodev, uint fn,
4aef267e
AS		 443 bool write, u32 addr, struct sk_buff *pkt)
444{
445 unsigned int req_sz;
bb350711 446 int err;
4aef267e 447
a39be27b
AS		 448 brcmf_sdiod_pm_resume_wait(sdiodev, &sdiodev->request_buffer_wait);
449 if (brcmf_sdiod_pm_resume_error(sdiodev))
4aef267e
AS		 450 return -EIO;
451
452 /* Single skb use the standard mmc interface */
453 req_sz = pkt->len + 3;
454 req_sz &= (uint)~3;
455
456 if (write)
bb350711
AS		 457 err = sdio_memcpy_toio(sdiodev->func[fn], addr,
458 ((u8 *)(pkt->data)), req_sz);
4aef267e 459 else if (fn == 1)
bb350711
AS		 460 err = sdio_memcpy_fromio(sdiodev->func[fn], ((u8 *)(pkt->data)),
461 addr, req_sz);
4aef267e
AS		 462 else
463 /* function 2 read is FIFO operation */
bb350711
AS		 464 err = sdio_readsb(sdiodev->func[fn], ((u8 *)(pkt->data)), addr,
465 req_sz);
466 if (err == -ENOMEDIUM)
467 brcmf_bus_change_state(sdiodev->bus_if, BRCMF_BUS_NOMEDIUM);
468 return err;
4aef267e
AS		 469}
470
78b3f1c5 471/**
a39be27b 472 * brcmf_sdiod_sglist_rw - SDIO interface function for block data access
78b3f1c5
FL		 473 * @sdiodev: brcmfmac sdio device
474 * @fn: SDIO function number
475 * @write: direction flag
476 * @addr: dongle memory address as source/destination
477 * @pkt: skb pointer
478 *
479 * This function takes the respbonsibility as the interface function to MMC
480 * stack for block data access. It assumes that the skb passed down by the
481 * caller has already been padded and aligned.
482 */
a39be27b
AS		 483static int brcmf_sdiod_sglist_rw(struct brcmf_sdio_dev *sdiodev, uint fn,
484 bool write, u32 addr,
485 struct sk_buff_head *pktlist)
78b3f1c5 486{
354b75bf 487 unsigned int req_sz, func_blk_sz, sg_cnt, sg_data_sz, pkt_offset;
71201496 488 unsigned int max_req_sz, orig_offset, dst_offset;
3f782744 489 unsigned short max_seg_cnt, seg_sz;
3b81a680
FL		 490 unsigned char *pkt_data, *orig_data, *dst_data;
491 struct sk_buff *pkt_next = NULL, *local_pkt_next;
492 struct sk_buff_head local_list, *target_list;
354b75bf
FL		 493 struct mmc_request mmc_req;
494 struct mmc_command mmc_cmd;
495 struct mmc_data mmc_dat;
354b75bf 496 struct scatterlist *sgl;
354b75bf
FL		 497 int ret = 0;
498
499 if (!pktlist->qlen)
500 return -EINVAL;
78b3f1c5 501
a39be27b
AS		 502 brcmf_sdiod_pm_resume_wait(sdiodev, &sdiodev->request_buffer_wait);
503 if (brcmf_sdiod_pm_resume_error(sdiodev))
78b3f1c5
FL		 504 return -EIO;
505
3b81a680
FL		 506 target_list = pktlist;
507 /* for host with broken sg support, prepare a page aligned list */
508 __skb_queue_head_init(&local_list);
509 if (sdiodev->pdata && sdiodev->pdata->broken_sg_support && !write) {
510 req_sz = 0;
511 skb_queue_walk(pktlist, pkt_next)
512 req_sz += pkt_next->len;
513 req_sz = ALIGN(req_sz, sdiodev->func[fn]->cur_blksize);
514 while (req_sz > PAGE_SIZE) {
515 pkt_next = brcmu_pkt_buf_get_skb(PAGE_SIZE);
516 if (pkt_next == NULL) {
517 ret = -ENOMEM;
518 goto exit;
519 }
520 __skb_queue_tail(&local_list, pkt_next);
521 req_sz -= PAGE_SIZE;
522 }
523 pkt_next = brcmu_pkt_buf_get_skb(req_sz);
524 if (pkt_next == NULL) {
525 ret = -ENOMEM;
526 goto exit;
527 }
528 __skb_queue_tail(&local_list, pkt_next);
529 target_list = &local_list;
530 }
531
354b75bf 532 func_blk_sz = sdiodev->func[fn]->cur_blksize;
71201496
AS		 533 max_req_sz = sdiodev->max_request_size;
534 max_seg_cnt = min_t(unsigned short, sdiodev->max_segment_count,
535 target_list->qlen);
3b81a680 536 seg_sz = target_list->qlen;
354b75bf 537 pkt_offset = 0;
3b81a680 538 pkt_next = target_list->next;
354b75bf 539
7f9a8dc8
AS		 540 memset(&mmc_req, 0, sizeof(struct mmc_request));
541 memset(&mmc_cmd, 0, sizeof(struct mmc_command));
542 memset(&mmc_dat, 0, sizeof(struct mmc_data));
543
af1fa210 544 mmc_dat.sg = sdiodev->sgtable.sgl;
7f9a8dc8
AS		 545 mmc_dat.blksz = func_blk_sz;
546 mmc_dat.flags = write ? MMC_DATA_WRITE : MMC_DATA_READ;
547 mmc_cmd.opcode = SD_IO_RW_EXTENDED;
548 mmc_cmd.arg = write ? 1<<31 : 0; /* write flag */
549 mmc_cmd.arg |= (fn & 0x7) << 28; /* SDIO func num */
550 mmc_cmd.arg |= 1<<27; /* block mode */
551 /* for function 1 the addr will be incremented */
552 mmc_cmd.arg |= (fn == 1) ? 1<<26 : 0;
553 mmc_cmd.flags = MMC_RSP_SPI_R5 | MMC_RSP_R5 | MMC_CMD_ADTC;
554 mmc_req.cmd = &mmc_cmd;
555 mmc_req.data = &mmc_dat;
556
354b75bf
FL		 557 while (seg_sz) {
558 req_sz = 0;
559 sg_cnt = 0;
af1fa210 560 sgl = sdiodev->sgtable.sgl;
354b75bf 561 /* prep sg table */
3b81a680 562 while (pkt_next != (struct sk_buff *)target_list) {
354b75bf
FL		 563 pkt_data = pkt_next->data + pkt_offset;
564 sg_data_sz = pkt_next->len - pkt_offset;
71201496
AS		 565 if (sg_data_sz > sdiodev->max_segment_size)
566 sg_data_sz = sdiodev->max_segment_size;
354b75bf
FL		 567 if (sg_data_sz > max_req_sz - req_sz)
568 sg_data_sz = max_req_sz - req_sz;
569
570 sg_set_buf(sgl, pkt_data, sg_data_sz);
571
572 sg_cnt++;
573 sgl = sg_next(sgl);
574 req_sz += sg_data_sz;
575 pkt_offset += sg_data_sz;
576 if (pkt_offset == pkt_next->len) {
577 pkt_offset = 0;
578 pkt_next = pkt_next->next;
579 }
580
3f782744 581 if (req_sz >= max_req_sz || sg_cnt >= max_seg_cnt)
354b75bf
FL		 582 break;
583 }
584 seg_sz -= sg_cnt;
585
586 if (req_sz % func_blk_sz != 0) {
587 brcmf_err("sg request length %u is not %u aligned\n",
588 req_sz, func_blk_sz);
3b81a680
FL		 589 ret = -ENOTBLK;
590 goto exit;
354b75bf 591 }
7f9a8dc8 592
354b75bf 593 mmc_dat.sg_len = sg_cnt;
354b75bf 594 mmc_dat.blocks = req_sz / func_blk_sz;
354b75bf
FL		 595 mmc_cmd.arg |= (addr & 0x1FFFF) << 9; /* address */
596 mmc_cmd.arg |= mmc_dat.blocks & 0x1FF; /* block count */
7f9a8dc8 597 /* incrementing addr for function 1 */
354b75bf
FL		 598 if (fn == 1)
599 addr += req_sz;
600
601 mmc_set_data_timeout(&mmc_dat, sdiodev->func[fn]->card);
71201496 602 mmc_wait_for_req(sdiodev->func[fn]->card->host, &mmc_req);
354b75bf
FL		 603
604 ret = mmc_cmd.error ? mmc_cmd.error : mmc_dat.error;
bb350711
AS		 605 if (ret == -ENOMEDIUM) {
606 brcmf_bus_change_state(sdiodev->bus_if,
607 BRCMF_BUS_NOMEDIUM);
608 break;
609 } else if (ret != 0) {
354b75bf
FL		 610 brcmf_err("CMD53 sg block %s failed %d\n",
611 write ? "write" : "read", ret);
612 ret = -EIO;
613 break;
614 }
615 }
616
3b81a680
FL		 617 if (sdiodev->pdata && sdiodev->pdata->broken_sg_support && !write) {
618 local_pkt_next = local_list.next;
619 orig_offset = 0;
620 skb_queue_walk(pktlist, pkt_next) {
621 dst_offset = 0;
622 do {
623 req_sz = local_pkt_next->len - orig_offset;
624 req_sz = min_t(uint, pkt_next->len - dst_offset,
625 req_sz);
626 orig_data = local_pkt_next->data + orig_offset;
627 dst_data = pkt_next->data + dst_offset;
628 memcpy(dst_data, orig_data, req_sz);
629 orig_offset += req_sz;
630 dst_offset += req_sz;
631 if (orig_offset == local_pkt_next->len) {
632 orig_offset = 0;
633 local_pkt_next = local_pkt_next->next;
634 }
635 if (dst_offset == pkt_next->len)
636 break;
637 } while (!skb_queue_empty(&local_list));
638 }
639 }
640
641exit:
af1fa210 642 sg_init_table(sdiodev->sgtable.sgl, sdiodev->sgtable.orig_nents);
3b81a680
FL		 643 while ((pkt_next = __skb_dequeue(&local_list)) != NULL)
644 brcmu_pkt_buf_free_skb(pkt_next);
354b75bf
FL		 645
646 return ret;
78b3f1c5
FL		 647}
648
a7cdd821 649int brcmf_sdiod_recv_buf(struct brcmf_sdio_dev *sdiodev, u8 *buf, uint nbytes)
5adfeb63
AS		 650{
651 struct sk_buff *mypkt;
652 int err;
653
654 mypkt = brcmu_pkt_buf_get_skb(nbytes);
655 if (!mypkt) {
5e8149f5 656 brcmf_err("brcmu_pkt_buf_get_skb failed: len %d\n",
5adfeb63
AS		 657 nbytes);
658 return -EIO;
659 }
660
a7cdd821 661 err = brcmf_sdiod_recv_pkt(sdiodev, mypkt);
5adfeb63
AS		 662 if (!err)
663 memcpy(buf, mypkt->data, nbytes);
664
665 brcmu_pkt_buf_free_skb(mypkt);
666 return err;
667}
668
a7cdd821 669int brcmf_sdiod_recv_pkt(struct brcmf_sdio_dev *sdiodev, struct sk_buff *pkt)
5adfeb63 670{
a7cdd821 671 u32 addr = sdiodev->sbwad;
5adfeb63
AS		 672 int err = 0;
673
a7cdd821 674 brcmf_dbg(SDIO, "addr = 0x%x, size = %d\n", addr, pkt->len);
5adfeb63 675
a7cdd821 676 err = brcmf_sdiod_addrprep(sdiodev, 4, &addr);
5adfeb63 677 if (err)
7057fd00 678 goto done;
5b435de0 679
a7cdd821 680 err = brcmf_sdiod_buffrw(sdiodev, SDIO_FUNC_2, false, addr, pkt);
5adfeb63 681
7057fd00 682done:
5adfeb63
AS		 683 return err;
684}
685
a7cdd821
AS		 686int brcmf_sdiod_recv_chain(struct brcmf_sdio_dev *sdiodev,
687 struct sk_buff_head *pktq, uint totlen)
5adfeb63 688{
a413e39a
AS		 689 struct sk_buff *glom_skb;
690 struct sk_buff *skb;
a7cdd821 691 u32 addr = sdiodev->sbwad;
5adfeb63
AS		 692 int err = 0;
693
a7cdd821
AS		 694 brcmf_dbg(SDIO, "addr = 0x%x, size = %d\n",
695 addr, pktq->qlen);
5adfeb63 696
a7cdd821 697 err = brcmf_sdiod_addrprep(sdiodev, 4, &addr);
5adfeb63 698 if (err)
7057fd00 699 goto done;
5b435de0 700
a413e39a 701 if (pktq->qlen == 1)
a7cdd821
AS		 702 err = brcmf_sdiod_buffrw(sdiodev, SDIO_FUNC_2, false, addr,
703 pktq->next);
a413e39a
AS		 704 else if (!sdiodev->sg_support) {
705 glom_skb = brcmu_pkt_buf_get_skb(totlen);
706 if (!glom_skb)
707 return -ENOMEM;
a7cdd821
AS		 708 err = brcmf_sdiod_buffrw(sdiodev, SDIO_FUNC_2, false, addr,
709 glom_skb);
a413e39a
AS		 710 if (err)
711 goto done;
712
713 skb_queue_walk(pktq, skb) {
714 memcpy(skb->data, glom_skb->data, skb->len);
715 skb_pull(glom_skb, skb->len);
716 }
717 } else
a7cdd821
AS		 718 err = brcmf_sdiod_sglist_rw(sdiodev, SDIO_FUNC_2, false, addr,
719 pktq);
5b435de0 720
7057fd00 721done:
5adfeb63 722 return err;
5b435de0
AS		 723}
724
a7cdd821 725int brcmf_sdiod_send_buf(struct brcmf_sdio_dev *sdiodev, u8 *buf, uint nbytes)
5adfeb63
AS		 726{
727 struct sk_buff *mypkt;
a7cdd821 728 u32 addr = sdiodev->sbwad;
5adfeb63
AS		 729 int err;
730
731 mypkt = brcmu_pkt_buf_get_skb(nbytes);
732 if (!mypkt) {
5e8149f5 733 brcmf_err("brcmu_pkt_buf_get_skb failed: len %d\n",
5adfeb63
AS		 734 nbytes);
735 return -EIO;
736 }
737
738 memcpy(mypkt->data, buf, nbytes);
4aef267e 739
a7cdd821 740 err = brcmf_sdiod_addrprep(sdiodev, 4, &addr);
4aef267e 741
fcaac2b1 742 if (!err)
a7cdd821
AS		 743 err = brcmf_sdiod_buffrw(sdiodev, SDIO_FUNC_2, true, addr,
744 mypkt);
5adfeb63
AS		 745
746 brcmu_pkt_buf_free_skb(mypkt);
747 return err;
748
749}
750
a7cdd821
AS		 751int brcmf_sdiod_send_pkt(struct brcmf_sdio_dev *sdiodev,
752 struct sk_buff_head *pktq)
5b435de0 753{
c8cce1f9 754 struct sk_buff *skb;
a7cdd821 755 u32 addr = sdiodev->sbwad;
fcaac2b1 756 int err;
5b435de0 757
a7cdd821 758 brcmf_dbg(SDIO, "addr = 0x%x, size = %d\n", addr, pktq->qlen);
5b435de0 759
a7cdd821 760 err = brcmf_sdiod_addrprep(sdiodev, 4, &addr);
fcaac2b1
AS		 761 if (err)
762 return err;
5b435de0 763
c8cce1f9
AS		 764 if (pktq->qlen == 1 || !sdiodev->sg_support)
765 skb_queue_walk(pktq, skb) {
a7cdd821
AS		 766 err = brcmf_sdiod_buffrw(sdiodev, SDIO_FUNC_2, true,
767 addr, skb);
c8cce1f9
AS		 768 if (err)
769 break;
770 }
771 else
a7cdd821
AS		 772 err = brcmf_sdiod_sglist_rw(sdiodev, SDIO_FUNC_2, true, addr,
773 pktq);
c8cce1f9
AS		 774
775 return err;
5b435de0
AS		 776}
777
ba540b01 778int
a39be27b
AS		 779brcmf_sdiod_ramrw(struct brcmf_sdio_dev *sdiodev, bool write, u32 address,
780 u8 *data, uint size)
5b435de0 781{
ba540b01
FL		 782 int bcmerror = 0;
783 struct sk_buff *pkt;
784 u32 sdaddr;
785 uint dsize;
786
787 dsize = min_t(uint, SBSDIO_SB_OFT_ADDR_LIMIT, size);
788 pkt = dev_alloc_skb(dsize);
789 if (!pkt) {
790 brcmf_err("dev_alloc_skb failed: len %d\n", dsize);
791 return -EIO;
792 }
793 pkt->priority = 0;
4c6e869d 794
ba540b01
FL		 795 /* Determine initial transfer parameters */
796 sdaddr = address & SBSDIO_SB_OFT_ADDR_MASK;
797 if ((sdaddr + size) & SBSDIO_SBWINDOW_MASK)
798 dsize = (SBSDIO_SB_OFT_ADDR_LIMIT - sdaddr);
799 else
800 dsize = size;
5b435de0 801
ba540b01
FL		 802 sdio_claim_host(sdiodev->func[1]);
803
804 /* Do the transfer(s) */
805 while (size) {
806 /* Set the backplane window to include the start address */
a39be27b 807 bcmerror = brcmf_sdiod_set_sbaddr_window(sdiodev, address);
ba540b01
FL		 808 if (bcmerror)
809 break;
810
811 brcmf_dbg(SDIO, "%s %d bytes at offset 0x%08x in window 0x%08x\n",
812 write ? "write" : "read", dsize,
813 sdaddr, address & SBSDIO_SBWINDOW_MASK);
814
815 sdaddr &= SBSDIO_SB_OFT_ADDR_MASK;
816 sdaddr |= SBSDIO_SB_ACCESS_2_4B_FLAG;
817
818 skb_put(pkt, dsize);
819 if (write)
820 memcpy(pkt->data, data, dsize);
a39be27b
AS		 821 bcmerror = brcmf_sdiod_buffrw(sdiodev, SDIO_FUNC_1, write,
822 sdaddr, pkt);
ba540b01
FL		 823 if (bcmerror) {
824 brcmf_err("membytes transfer failed\n");
825 break;
826 }
827 if (!write)
828 memcpy(data, pkt->data, dsize);
79c868e5 829 skb_trim(pkt, 0);
ba540b01
FL		 830
831 /* Adjust for next transfer (if any) */
832 size -= dsize;
833 if (size) {
834 data += dsize;
835 address += dsize;
836 sdaddr = 0;
837 dsize = min_t(uint, SBSDIO_SB_OFT_ADDR_LIMIT, size);
838 }
4c6e869d
AS		 839 }
840
ba540b01 841 dev_kfree_skb(pkt);
4c6e869d 842
ba540b01 843 /* Return the window to backplane enumeration space for core access */
a39be27b 844 if (brcmf_sdiod_set_sbaddr_window(sdiodev, sdiodev->sbwad))
ba540b01
FL		 845 brcmf_err("FAILED to set window back to 0x%x\n",
846 sdiodev->sbwad);
4c6e869d 847
ba540b01 848 sdio_release_host(sdiodev->func[1]);
4c6e869d 849
ba540b01 850 return bcmerror;
5b435de0
AS		 851}
852
a39be27b 853int brcmf_sdiod_abort(struct brcmf_sdio_dev *sdiodev, uint fn)
5b435de0
AS		 854{
855 char t_func = (char)fn;
c3203374 856 brcmf_dbg(SDIO, "Enter\n");
5b435de0
AS		 857
858 /* issue abort cmd52 command through F0 */
71c60cf2
AS		 859 brcmf_sdiod_request_data(sdiodev, SDIO_FUNC_0, SDIO_CCCR_ABORT,
860 sizeof(t_func), &t_func, true);
5b435de0 861
c3203374 862 brcmf_dbg(SDIO, "Exit\n");
5b435de0
AS		 863 return 0;
864}
865
af1fa210
AS		 866static void brcmf_sdiod_sgtable_alloc(struct brcmf_sdio_dev *sdiodev)
867{
868 uint nents;
869 int err;
870
871 if (!sdiodev->sg_support)
872 return;
873
874 nents = max_t(uint, BRCMF_DEFAULT_RXGLOM_SIZE, brcmf_sdiod_txglomsz);
875 nents += (nents >> 4) + 1;
876
877 WARN_ON(nents > sdiodev->max_segment_count);
878
879 brcmf_dbg(TRACE, "nents=%d\n", nents);
880 err = sg_alloc_table(&sdiodev->sgtable, nents, GFP_KERNEL);
881 if (err < 0) {
882 brcmf_err("allocation failed: disable scatter-gather");
883 sdiodev->sg_support = false;
884 }
885
886 sdiodev->txglomsz = brcmf_sdiod_txglomsz;
887}
888
a39be27b
AS		 889static int brcmf_sdiod_remove(struct brcmf_sdio_dev *sdiodev)
890{
a39be27b 891 if (sdiodev->bus) {
9fbe2a6d 892 brcmf_sdio_remove(sdiodev->bus);
a39be27b
AS		 893 sdiodev->bus = NULL;
894 }
895
896 /* Disable Function 2 */
897 sdio_claim_host(sdiodev->func[2]);
898 sdio_disable_func(sdiodev->func[2]);
899 sdio_release_host(sdiodev->func[2]);
900
901 /* Disable Function 1 */
902 sdio_claim_host(sdiodev->func[1]);
903 sdio_disable_func(sdiodev->func[1]);
904 sdio_release_host(sdiodev->func[1]);
905
af1fa210 906 sg_free_table(&sdiodev->sgtable);
a39be27b
AS		 907 sdiodev->sbwad = 0;
908
909 return 0;
910}
911
912static int brcmf_sdiod_probe(struct brcmf_sdio_dev *sdiodev)
e2dc9eea 913{
e2dc9eea 914 struct sdio_func *func;
a39be27b 915 struct mmc_host *host;
e2dc9eea 916 uint max_blocks;
a39be27b 917 int ret = 0;
e2dc9eea
AS		 918
919 sdiodev->num_funcs = 2;
920
921 sdio_claim_host(sdiodev->func[1]);
922
a39be27b
AS		 923 ret = sdio_set_block_size(sdiodev->func[1], SDIO_FUNC1_BLOCKSIZE);
924 if (ret) {
e2dc9eea 925 brcmf_err("Failed to set F1 blocksize\n");
a39be27b 926 sdio_release_host(sdiodev->func[1]);
e2dc9eea
AS		 927 goto out;
928 }
a39be27b
AS		 929 ret = sdio_set_block_size(sdiodev->func[2], SDIO_FUNC2_BLOCKSIZE);
930 if (ret) {
e2dc9eea 931 brcmf_err("Failed to set F2 blocksize\n");
a39be27b 932 sdio_release_host(sdiodev->func[1]);
e2dc9eea
AS		 933 goto out;
934 }
935
71370eb8
AS		 936 /* increase F2 timeout */
937 sdiodev->func[2]->enable_timeout = SDIO_WAIT_F2RDY;
938
463c30b3 939 /* Enable Function 1 */
a39be27b
AS		 940 ret = sdio_enable_func(sdiodev->func[1]);
941 sdio_release_host(sdiodev->func[1]);
942 if (ret) {
943 brcmf_err("Failed to enable F1: err=%d\n", ret);
463c30b3
AS		 944 goto out;
945 }
e2dc9eea
AS		 946
947 /*
a39be27b 948 * determine host related variables after brcmf_sdiod_probe()
e2dc9eea
AS		 949 * as func->cur_blksize is properly set and F2 init has been
950 * completed successfully.
951 */
952 func = sdiodev->func[2];
953 host = func->card->host;
954 sdiodev->sg_support = host->max_segs > 1;
955 max_blocks = min_t(uint, host->max_blk_count, 511u);
956 sdiodev->max_request_size = min_t(uint, host->max_req_size,
957 max_blocks * func->cur_blksize);
958 sdiodev->max_segment_count = min_t(uint, host->max_segs,
959 SG_MAX_SINGLE_ALLOC);
960 sdiodev->max_segment_size = host->max_seg_size;
e49b06ba 961
af1fa210
AS		 962 /* allocate scatter-gather table. sg support
963 * will be disabled upon allocation failure.
964 */
965 brcmf_sdiod_sgtable_alloc(sdiodev);
966
e49b06ba 967 /* try to attach to the target device */
82d7f3c1 968 sdiodev->bus = brcmf_sdio_probe(sdiodev);
e49b06ba 969 if (!sdiodev->bus) {
e49b06ba
AS		 970 ret = -ENODEV;
971 goto out;
972 }
973
974out:
975 if (ret)
a39be27b 976 brcmf_sdiod_remove(sdiodev);
e49b06ba
AS		 977
978 return ret;
979}
980
981/* devices we support, null terminated */
982static const struct sdio_device_id brcmf_sdmmc_ids[] = {
983 {SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_43143)},
984 {SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_43241)},
985 {SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4329)},
986 {SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4330)},
987 {SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4334)},
11e69c36 988 {SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_43362)},
e49b06ba
AS		 989 {SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM,
990 SDIO_DEVICE_ID_BROADCOM_4335_4339)},
991 { /* end: all zeroes */ },
992};
993MODULE_DEVICE_TABLE(sdio, brcmf_sdmmc_ids);
994
995static struct brcmfmac_sdio_platform_data *brcmfmac_sdio_pdata;
996
997
e2dc9eea
AS		 998static int brcmf_ops_sdio_probe(struct sdio_func *func,
999 const struct sdio_device_id *id)
1000{
1001 int err;
1002 struct brcmf_sdio_dev *sdiodev;
1003 struct brcmf_bus *bus_if;
1004
1005 brcmf_dbg(SDIO, "Enter\n");
1006 brcmf_dbg(SDIO, "Class=%x\n", func->class);
1007 brcmf_dbg(SDIO, "sdio vendor ID: 0x%04x\n", func->vendor);
1008 brcmf_dbg(SDIO, "sdio device ID: 0x%04x\n", func->device);
1009 brcmf_dbg(SDIO, "Function#: %d\n", func->num);
1010
1011 /* Consume func num 1 but dont do anything with it. */
1012 if (func->num == 1)
1013 return 0;
1014
1015 /* Ignore anything but func 2 */
1016 if (func->num != 2)
1017 return -ENODEV;
1018
1019 bus_if = kzalloc(sizeof(struct brcmf_bus), GFP_KERNEL);
1020 if (!bus_if)
1021 return -ENOMEM;
1022 sdiodev = kzalloc(sizeof(struct brcmf_sdio_dev), GFP_KERNEL);
1023 if (!sdiodev) {
1024 kfree(bus_if);
1025 return -ENOMEM;
1026 }
1027
36c4e7e4
AS		 1028 /* store refs to functions used. mmc_card does
1029 * not hold the F0 function pointer.
1030 */
1031 sdiodev->func[0] = kmemdup(func, sizeof(*func), GFP_KERNEL);
1032 sdiodev->func[0]->num = 0;
e2dc9eea
AS		 1033 sdiodev->func[1] = func->card->sdio_func[0];
1034 sdiodev->func[2] = func;
1035
1036 sdiodev->bus_if = bus_if;
1037 bus_if->bus_priv.sdio = sdiodev;
943258b6 1038 bus_if->proto_type = BRCMF_PROTO_BCDC;
e2dc9eea
AS		 1039 dev_set_drvdata(&func->dev, bus_if);
1040 dev_set_drvdata(&sdiodev->func[1]->dev, bus_if);
1041 sdiodev->dev = &sdiodev->func[1]->dev;
1042 sdiodev->pdata = brcmfmac_sdio_pdata;
1043
1044 atomic_set(&sdiodev->suspend, false);
e2dc9eea
AS		 1045 init_waitqueue_head(&sdiodev->request_word_wait);
1046 init_waitqueue_head(&sdiodev->request_buffer_wait);
1047
a39be27b
AS		 1048 brcmf_dbg(SDIO, "F2 found, calling brcmf_sdiod_probe...\n");
1049 err = brcmf_sdiod_probe(sdiodev);
e2dc9eea
AS		 1050 if (err) {
1051 brcmf_err("F2 error, probe failed %d...\n", err);
1052 goto fail;
1053 }
1054
1055 brcmf_dbg(SDIO, "F2 init completed...\n");
1056 return 0;
1057
1058fail:
1059 dev_set_drvdata(&func->dev, NULL);
1060 dev_set_drvdata(&sdiodev->func[1]->dev, NULL);
36c4e7e4 1061 kfree(sdiodev->func[0]);
e2dc9eea
AS		 1062 kfree(sdiodev);
1063 kfree(bus_if);
1064 return err;
1065}
1066
1067static void brcmf_ops_sdio_remove(struct sdio_func *func)
1068{
1069 struct brcmf_bus *bus_if;
1070 struct brcmf_sdio_dev *sdiodev;
1071
1072 brcmf_dbg(SDIO, "Enter\n");
1073 brcmf_dbg(SDIO, "sdio vendor ID: 0x%04x\n", func->vendor);
1074 brcmf_dbg(SDIO, "sdio device ID: 0x%04x\n", func->device);
1075 brcmf_dbg(SDIO, "Function: %d\n", func->num);
1076
1077 if (func->num != 1 && func->num != 2)
1078 return;
1079
1080 bus_if = dev_get_drvdata(&func->dev);
1081 if (bus_if) {
1082 sdiodev = bus_if->bus_priv.sdio;
a39be27b 1083 brcmf_sdiod_remove(sdiodev);
e2dc9eea
AS		 1084
1085 dev_set_drvdata(&sdiodev->func[1]->dev, NULL);
1086 dev_set_drvdata(&sdiodev->func[2]->dev, NULL);
1087
1088 kfree(bus_if);
36c4e7e4 1089 kfree(sdiodev->func[0]);
e2dc9eea
AS		 1090 kfree(sdiodev);
1091 }
1092
1093 brcmf_dbg(SDIO, "Exit\n");
1094}
1095
1096#ifdef CONFIG_PM_SLEEP
a39be27b 1097static int brcmf_ops_sdio_suspend(struct device *dev)
e2dc9eea
AS		 1098{
1099 mmc_pm_flag_t sdio_flags;
1100 struct brcmf_bus *bus_if = dev_get_drvdata(dev);
1101 struct brcmf_sdio_dev *sdiodev = bus_if->bus_priv.sdio;
1102 int ret = 0;
1103
1104 brcmf_dbg(SDIO, "\n");
1105
1106 atomic_set(&sdiodev->suspend, true);
1107
1108 sdio_flags = sdio_get_host_pm_caps(sdiodev->func[1]);
1109 if (!(sdio_flags & MMC_PM_KEEP_POWER)) {
1110 brcmf_err("Host can't keep power while suspended\n");
1111 return -EINVAL;
1112 }
1113
1114 ret = sdio_set_host_pm_flags(sdiodev->func[1], MMC_PM_KEEP_POWER);
1115 if (ret) {
1116 brcmf_err("Failed to set pm_flags\n");
1117 return ret;
1118 }
1119
82d7f3c1 1120 brcmf_sdio_wd_timer(sdiodev->bus, 0);
e2dc9eea
AS		 1121
1122 return ret;
1123}
1124
a39be27b 1125static int brcmf_ops_sdio_resume(struct device *dev)
e2dc9eea
AS		 1126{
1127 struct brcmf_bus *bus_if = dev_get_drvdata(dev);
1128 struct brcmf_sdio_dev *sdiodev = bus_if->bus_priv.sdio;
1129
82d7f3c1 1130 brcmf_sdio_wd_timer(sdiodev->bus, BRCMF_WD_POLL_MS);
e2dc9eea
AS		 1131 atomic_set(&sdiodev->suspend, false);
1132 return 0;
1133}
1134
1135static const struct dev_pm_ops brcmf_sdio_pm_ops = {
a39be27b
AS		 1136 .suspend = brcmf_ops_sdio_suspend,
1137 .resume = brcmf_ops_sdio_resume,
e2dc9eea
AS		 1138};
1139#endif /* CONFIG_PM_SLEEP */
1140
1141static struct sdio_driver brcmf_sdmmc_driver = {
1142 .probe = brcmf_ops_sdio_probe,
1143 .remove = brcmf_ops_sdio_remove,
1144 .name = BRCMFMAC_SDIO_PDATA_NAME,
1145 .id_table = brcmf_sdmmc_ids,
e2dc9eea 1146 .drv = {
0b0acd8c
FL		 1147 .owner = THIS_MODULE,
1148#ifdef CONFIG_PM_SLEEP
e2dc9eea 1149 .pm = &brcmf_sdio_pm_ops,
e2dc9eea 1150#endif /* CONFIG_PM_SLEEP */
0b0acd8c 1151 },
e2dc9eea
AS		 1152};
1153
1154static int brcmf_sdio_pd_probe(struct platform_device *pdev)
1155{
1156 brcmf_dbg(SDIO, "Enter\n");
1157
1158 brcmfmac_sdio_pdata = dev_get_platdata(&pdev->dev);
1159
1160 if (brcmfmac_sdio_pdata->power_on)
1161 brcmfmac_sdio_pdata->power_on();
1162
1163 return 0;
1164}
1165
1166static int brcmf_sdio_pd_remove(struct platform_device *pdev)
1167{
1168 brcmf_dbg(SDIO, "Enter\n");
1169
1170 if (brcmfmac_sdio_pdata->power_off)
1171 brcmfmac_sdio_pdata->power_off();
1172
1173 sdio_unregister_driver(&brcmf_sdmmc_driver);
1174
1175 return 0;
1176}
1177
1178static struct platform_driver brcmf_sdio_pd = {
1179 .remove = brcmf_sdio_pd_remove,
1180 .driver = {
1181 .name = BRCMFMAC_SDIO_PDATA_NAME,
1182 .owner = THIS_MODULE,
1183 }
1184};
1185
1186void brcmf_sdio_register(void)
1187{
1188 int ret;
1189
1190 ret = sdio_register_driver(&brcmf_sdmmc_driver);
1191 if (ret)
1192 brcmf_err("sdio_register_driver failed: %d\n", ret);
1193}
1194
1195void brcmf_sdio_exit(void)
1196{
1197 brcmf_dbg(SDIO, "Enter\n");
1198
1199 if (brcmfmac_sdio_pdata)
1200 platform_driver_unregister(&brcmf_sdio_pd);
1201 else
1202 sdio_unregister_driver(&brcmf_sdmmc_driver);
1203}
1204
1205void __init brcmf_sdio_init(void)
1206{
1207 int ret;
1208
1209 brcmf_dbg(SDIO, "Enter\n");
1210
1211 ret = platform_driver_probe(&brcmf_sdio_pd, brcmf_sdio_pd_probe);
1212 if (ret == -ENODEV)
1213 brcmf_dbg(SDIO, "No platform data available.\n");
1214}
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