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20#include <linux/firmware.h>
21
22#include "decl.h"
23#include "ioctl.h"
24#include "util.h"
25#include "fw.h"
26#include "main.h"
27#include "wmm.h"
28#include "11n.h"
29#include "sdio.h"
30
31
32#define SDIO_VERSION "1.0"
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47static u8 user_rmmod;
48
49static struct mwifiex_if_ops sdio_ops;
50
51static struct semaphore add_remove_card_sem;
52
53
54
55
56
57
58
59
60
61static int
62mwifiex_sdio_probe(struct sdio_func *func, const struct sdio_device_id *id)
63{
64 int ret;
65 struct sdio_mmc_card *card = NULL;
66
67 pr_debug("info: vendor=0x%4.04X device=0x%4.04X class=%d function=%d\n",
68 func->vendor, func->device, func->class, func->num);
69
70 card = kzalloc(sizeof(struct sdio_mmc_card), GFP_KERNEL);
71 if (!card)
72 return -ENOMEM;
73
74 card->func = func;
75
76 func->card->quirks |= MMC_QUIRK_BLKSZ_FOR_BYTE_MODE;
77
78 if (id->driver_data) {
79 struct mwifiex_sdio_device *data = (void *)id->driver_data;
80
81 card->firmware = data->firmware;
82 card->reg = data->reg;
83 card->max_ports = data->max_ports;
84 card->mp_agg_pkt_limit = data->mp_agg_pkt_limit;
85 card->supports_sdio_new_mode = data->supports_sdio_new_mode;
86 card->has_control_mask = data->has_control_mask;
87 }
88
89 sdio_claim_host(func);
90 ret = sdio_enable_func(func);
91 sdio_release_host(func);
92
93 if (ret) {
94 pr_err("%s: failed to enable function\n", __func__);
95 kfree(card);
96 return -EIO;
97 }
98
99 if (mwifiex_add_card(card, &add_remove_card_sem, &sdio_ops,
100 MWIFIEX_SDIO)) {
101 pr_err("%s: add card failed\n", __func__);
102 kfree(card);
103 sdio_claim_host(func);
104 ret = sdio_disable_func(func);
105 sdio_release_host(func);
106 ret = -1;
107 }
108
109 return ret;
110}
111
112
113
114
115
116
117
118
119
120
121
122static int mwifiex_sdio_resume(struct device *dev)
123{
124 struct sdio_func *func = dev_to_sdio_func(dev);
125 struct sdio_mmc_card *card;
126 struct mwifiex_adapter *adapter;
127 mmc_pm_flag_t pm_flag = 0;
128
129 if (func) {
130 pm_flag = sdio_get_host_pm_caps(func);
131 card = sdio_get_drvdata(func);
132 if (!card || !card->adapter) {
133 pr_err("resume: invalid card or adapter\n");
134 return 0;
135 }
136 } else {
137 pr_err("resume: sdio_func is not specified\n");
138 return 0;
139 }
140
141 adapter = card->adapter;
142
143 if (!adapter->is_suspended) {
144 dev_warn(adapter->dev, "device already resumed\n");
145 return 0;
146 }
147
148 adapter->is_suspended = false;
149
150
151 mwifiex_cancel_hs(mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA),
152 MWIFIEX_ASYNC_CMD);
153
154 return 0;
155}
156
157
158
159
160
161
162static void
163mwifiex_sdio_remove(struct sdio_func *func)
164{
165 struct sdio_mmc_card *card;
166 struct mwifiex_adapter *adapter;
167 struct mwifiex_private *priv;
168 int i;
169
170 pr_debug("info: SDIO func num=%d\n", func->num);
171
172 card = sdio_get_drvdata(func);
173 if (!card)
174 return;
175
176 adapter = card->adapter;
177 if (!adapter || !adapter->priv_num)
178 return;
179
180
181 wait_for_completion(&adapter->fw_load);
182
183 if (user_rmmod) {
184 if (adapter->is_suspended)
185 mwifiex_sdio_resume(adapter->dev);
186
187 for (i = 0; i < adapter->priv_num; i++)
188 if ((GET_BSS_ROLE(adapter->priv[i]) ==
189 MWIFIEX_BSS_ROLE_STA) &&
190 adapter->priv[i]->media_connected)
191 mwifiex_deauthenticate(adapter->priv[i], NULL);
192
193 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
194 mwifiex_disable_auto_ds(priv);
195 mwifiex_init_shutdown_fw(priv, MWIFIEX_FUNC_SHUTDOWN);
196 }
197
198 mwifiex_remove_card(card->adapter, &add_remove_card_sem);
199 kfree(card);
200}
201
202
203
204
205
206
207
208
209
210
211
212static int mwifiex_sdio_suspend(struct device *dev)
213{
214 struct sdio_func *func = dev_to_sdio_func(dev);
215 struct sdio_mmc_card *card;
216 struct mwifiex_adapter *adapter;
217 mmc_pm_flag_t pm_flag = 0;
218 int ret = 0;
219
220 if (func) {
221 pm_flag = sdio_get_host_pm_caps(func);
222 pr_debug("cmd: %s: suspend: PM flag = 0x%x\n",
223 sdio_func_id(func), pm_flag);
224 if (!(pm_flag & MMC_PM_KEEP_POWER)) {
225 pr_err("%s: cannot remain alive while host is"
226 " suspended\n", sdio_func_id(func));
227 return -ENOSYS;
228 }
229
230 card = sdio_get_drvdata(func);
231 if (!card || !card->adapter) {
232 pr_err("suspend: invalid card or adapter\n");
233 return 0;
234 }
235 } else {
236 pr_err("suspend: sdio_func is not specified\n");
237 return 0;
238 }
239
240 adapter = card->adapter;
241
242
243 if (!mwifiex_enable_hs(adapter)) {
244 dev_err(adapter->dev, "cmd: failed to suspend\n");
245 return -EFAULT;
246 }
247
248 dev_dbg(adapter->dev, "cmd: suspend with MMC_PM_KEEP_POWER\n");
249 ret = sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER);
250
251
252 adapter->is_suspended = true;
253
254 return ret;
255}
256
257
258#define SDIO_DEVICE_ID_MARVELL_8786 (0x9116)
259
260#define SDIO_DEVICE_ID_MARVELL_8787 (0x9119)
261
262#define SDIO_DEVICE_ID_MARVELL_8797 (0x9129)
263
264#define SDIO_DEVICE_ID_MARVELL_8897 (0x912d)
265
266
267static const struct sdio_device_id mwifiex_ids[] = {
268 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8786),
269 .driver_data = (unsigned long) &mwifiex_sdio_sd8786},
270 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8787),
271 .driver_data = (unsigned long) &mwifiex_sdio_sd8787},
272 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8797),
273 .driver_data = (unsigned long) &mwifiex_sdio_sd8797},
274 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8897),
275 .driver_data = (unsigned long) &mwifiex_sdio_sd8897},
276 {},
277};
278
279MODULE_DEVICE_TABLE(sdio, mwifiex_ids);
280
281static const struct dev_pm_ops mwifiex_sdio_pm_ops = {
282 .suspend = mwifiex_sdio_suspend,
283 .resume = mwifiex_sdio_resume,
284};
285
286static struct sdio_driver mwifiex_sdio = {
287 .name = "mwifiex_sdio",
288 .id_table = mwifiex_ids,
289 .probe = mwifiex_sdio_probe,
290 .remove = mwifiex_sdio_remove,
291 .drv = {
292 .owner = THIS_MODULE,
293 .pm = &mwifiex_sdio_pm_ops,
294 }
295};
296
297
298static int
299mwifiex_write_reg_locked(struct sdio_func *func, u32 reg, u8 data)
300{
301 int ret = -1;
302 sdio_writeb(func, data, reg, &ret);
303 return ret;
304}
305
306
307
308
309static int
310mwifiex_write_reg(struct mwifiex_adapter *adapter, u32 reg, u8 data)
311{
312 struct sdio_mmc_card *card = adapter->card;
313 int ret;
314
315 sdio_claim_host(card->func);
316 ret = mwifiex_write_reg_locked(card->func, reg, data);
317 sdio_release_host(card->func);
318
319 return ret;
320}
321
322
323
324
325static int
326mwifiex_read_reg(struct mwifiex_adapter *adapter, u32 reg, u8 *data)
327{
328 struct sdio_mmc_card *card = adapter->card;
329 int ret = -1;
330 u8 val;
331
332 sdio_claim_host(card->func);
333 val = sdio_readb(card->func, reg, &ret);
334 sdio_release_host(card->func);
335
336 *data = val;
337
338 return ret;
339}
340
341
342
343
344
345
346static int
347mwifiex_write_data_sync(struct mwifiex_adapter *adapter,
348 u8 *buffer, u32 pkt_len, u32 port)
349{
350 struct sdio_mmc_card *card = adapter->card;
351 int ret;
352 u8 blk_mode =
353 (port & MWIFIEX_SDIO_BYTE_MODE_MASK) ? BYTE_MODE : BLOCK_MODE;
354 u32 blk_size = (blk_mode == BLOCK_MODE) ? MWIFIEX_SDIO_BLOCK_SIZE : 1;
355 u32 blk_cnt =
356 (blk_mode ==
357 BLOCK_MODE) ? (pkt_len /
358 MWIFIEX_SDIO_BLOCK_SIZE) : pkt_len;
359 u32 ioport = (port & MWIFIEX_SDIO_IO_PORT_MASK);
360
361 if (adapter->is_suspended) {
362 dev_err(adapter->dev,
363 "%s: not allowed while suspended\n", __func__);
364 return -1;
365 }
366
367 sdio_claim_host(card->func);
368
369 ret = sdio_writesb(card->func, ioport, buffer, blk_cnt * blk_size);
370
371 sdio_release_host(card->func);
372
373 return ret;
374}
375
376
377
378
379static int mwifiex_read_data_sync(struct mwifiex_adapter *adapter, u8 *buffer,
380 u32 len, u32 port, u8 claim)
381{
382 struct sdio_mmc_card *card = adapter->card;
383 int ret;
384 u8 blk_mode = (port & MWIFIEX_SDIO_BYTE_MODE_MASK) ? BYTE_MODE
385 : BLOCK_MODE;
386 u32 blk_size = (blk_mode == BLOCK_MODE) ? MWIFIEX_SDIO_BLOCK_SIZE : 1;
387 u32 blk_cnt = (blk_mode == BLOCK_MODE) ? (len / MWIFIEX_SDIO_BLOCK_SIZE)
388 : len;
389 u32 ioport = (port & MWIFIEX_SDIO_IO_PORT_MASK);
390
391 if (claim)
392 sdio_claim_host(card->func);
393
394 ret = sdio_readsb(card->func, buffer, ioport, blk_cnt * blk_size);
395
396 if (claim)
397 sdio_release_host(card->func);
398
399 return ret;
400}
401
402
403
404
405
406
407
408static int mwifiex_pm_wakeup_card(struct mwifiex_adapter *adapter)
409{
410 dev_dbg(adapter->dev, "event: wakeup device...\n");
411
412 return mwifiex_write_reg(adapter, CONFIGURATION_REG, HOST_POWER_UP);
413}
414
415
416
417
418
419
420static int mwifiex_pm_wakeup_card_complete(struct mwifiex_adapter *adapter)
421{
422 dev_dbg(adapter->dev, "cmd: wakeup device completed\n");
423
424 return mwifiex_write_reg(adapter, CONFIGURATION_REG, 0);
425}
426
427
428
429
430
431static int mwifiex_init_sdio_new_mode(struct mwifiex_adapter *adapter)
432{
433 u8 reg;
434
435 adapter->ioport = MEM_PORT;
436
437
438 if (mwifiex_read_reg(adapter, CARD_CONFIG_2_1_REG, ®))
439 return -1;
440 if (mwifiex_write_reg(adapter, CARD_CONFIG_2_1_REG,
441 reg | CMD53_NEW_MODE))
442 return -1;
443
444
445 if (mwifiex_read_reg(adapter, CMD_CONFIG_0, ®))
446 return -1;
447 if (mwifiex_write_reg(adapter, CMD_CONFIG_0, reg | CMD_PORT_RD_LEN_EN))
448 return -1;
449
450
451
452
453 if (mwifiex_read_reg(adapter, CMD_CONFIG_1, ®))
454 return -1;
455 if (mwifiex_write_reg(adapter, CMD_CONFIG_1, reg | CMD_PORT_AUTO_EN))
456 return -1;
457
458 return 0;
459}
460
461
462
463
464
465
466
467
468static int mwifiex_init_sdio_ioport(struct mwifiex_adapter *adapter)
469{
470 u8 reg;
471 struct sdio_mmc_card *card = adapter->card;
472
473 adapter->ioport = 0;
474
475 if (card->supports_sdio_new_mode) {
476 if (mwifiex_init_sdio_new_mode(adapter))
477 return -1;
478 goto cont;
479 }
480
481
482 if (!mwifiex_read_reg(adapter, IO_PORT_0_REG, ®))
483 adapter->ioport |= (reg & 0xff);
484 else
485 return -1;
486
487 if (!mwifiex_read_reg(adapter, IO_PORT_1_REG, ®))
488 adapter->ioport |= ((reg & 0xff) << 8);
489 else
490 return -1;
491
492 if (!mwifiex_read_reg(adapter, IO_PORT_2_REG, ®))
493 adapter->ioport |= ((reg & 0xff) << 16);
494 else
495 return -1;
496cont:
497 pr_debug("info: SDIO FUNC1 IO port: %#x\n", adapter->ioport);
498
499
500 if (!mwifiex_read_reg(adapter, HOST_INT_RSR_REG, ®))
501 mwifiex_write_reg(adapter, HOST_INT_RSR_REG,
502 reg | card->reg->sdio_int_mask);
503 else
504 return -1;
505
506
507 if (!mwifiex_read_reg(adapter, card->reg->card_misc_cfg_reg, ®))
508 mwifiex_write_reg(adapter, card->reg->card_misc_cfg_reg,
509 reg | AUTO_RE_ENABLE_INT);
510 else
511 return -1;
512
513 return 0;
514}
515
516
517
518
519static int mwifiex_write_data_to_card(struct mwifiex_adapter *adapter,
520 u8 *payload, u32 pkt_len, u32 port)
521{
522 u32 i = 0;
523 int ret;
524
525 do {
526 ret = mwifiex_write_data_sync(adapter, payload, pkt_len, port);
527 if (ret) {
528 i++;
529 dev_err(adapter->dev, "host_to_card, write iomem"
530 " (%d) failed: %d\n", i, ret);
531 if (mwifiex_write_reg(adapter, CONFIGURATION_REG, 0x04))
532 dev_err(adapter->dev, "write CFG reg failed\n");
533
534 ret = -1;
535 if (i > MAX_WRITE_IOMEM_RETRY)
536 return ret;
537 }
538 } while (ret == -1);
539
540 return ret;
541}
542
543
544
545
546
547
548
549
550
551static int mwifiex_get_rd_port(struct mwifiex_adapter *adapter, u8 *port)
552{
553 struct sdio_mmc_card *card = adapter->card;
554 const struct mwifiex_sdio_card_reg *reg = card->reg;
555 u32 rd_bitmap = card->mp_rd_bitmap;
556
557 dev_dbg(adapter->dev, "data: mp_rd_bitmap=0x%08x\n", rd_bitmap);
558
559 if (card->supports_sdio_new_mode) {
560 if (!(rd_bitmap & reg->data_port_mask))
561 return -1;
562 } else {
563 if (!(rd_bitmap & (CTRL_PORT_MASK | reg->data_port_mask)))
564 return -1;
565 }
566
567 if ((card->has_control_mask) &&
568 (card->mp_rd_bitmap & CTRL_PORT_MASK)) {
569 card->mp_rd_bitmap &= (u32) (~CTRL_PORT_MASK);
570 *port = CTRL_PORT;
571 dev_dbg(adapter->dev, "data: port=%d mp_rd_bitmap=0x%08x\n",
572 *port, card->mp_rd_bitmap);
573 return 0;
574 }
575
576 if (!(card->mp_rd_bitmap & (1 << card->curr_rd_port)))
577 return -1;
578
579
580 card->mp_rd_bitmap &= (u32)(~(1 << card->curr_rd_port));
581 *port = card->curr_rd_port;
582
583 if (++card->curr_rd_port == card->max_ports)
584 card->curr_rd_port = reg->start_rd_port;
585
586 dev_dbg(adapter->dev,
587 "data: port=%d mp_rd_bitmap=0x%08x -> 0x%08x\n",
588 *port, rd_bitmap, card->mp_rd_bitmap);
589
590 return 0;
591}
592
593
594
595
596
597
598
599
600static int mwifiex_get_wr_port_data(struct mwifiex_adapter *adapter, u32 *port)
601{
602 struct sdio_mmc_card *card = adapter->card;
603 const struct mwifiex_sdio_card_reg *reg = card->reg;
604 u32 wr_bitmap = card->mp_wr_bitmap;
605
606 dev_dbg(adapter->dev, "data: mp_wr_bitmap=0x%08x\n", wr_bitmap);
607
608 if (card->supports_sdio_new_mode &&
609 !(wr_bitmap & reg->data_port_mask)) {
610 adapter->data_sent = true;
611 return -EBUSY;
612 } else if (!card->supports_sdio_new_mode &&
613 !(wr_bitmap & card->mp_data_port_mask)) {
614 return -1;
615 }
616
617 if (card->mp_wr_bitmap & (1 << card->curr_wr_port)) {
618 card->mp_wr_bitmap &= (u32) (~(1 << card->curr_wr_port));
619 *port = card->curr_wr_port;
620 if (((card->supports_sdio_new_mode) &&
621 (++card->curr_wr_port == card->max_ports)) ||
622 ((!card->supports_sdio_new_mode) &&
623 (++card->curr_wr_port == card->mp_end_port)))
624 card->curr_wr_port = reg->start_wr_port;
625 } else {
626 adapter->data_sent = true;
627 return -EBUSY;
628 }
629
630 if ((card->has_control_mask) && (*port == CTRL_PORT)) {
631 dev_err(adapter->dev,
632 "invalid data port=%d cur port=%d mp_wr_bitmap=0x%08x -> 0x%08x\n",
633 *port, card->curr_wr_port, wr_bitmap,
634 card->mp_wr_bitmap);
635 return -1;
636 }
637
638 dev_dbg(adapter->dev, "data: port=%d mp_wr_bitmap=0x%08x -> 0x%08x\n",
639 *port, wr_bitmap, card->mp_wr_bitmap);
640
641 return 0;
642}
643
644
645
646
647static int
648mwifiex_sdio_poll_card_status(struct mwifiex_adapter *adapter, u8 bits)
649{
650 struct sdio_mmc_card *card = adapter->card;
651 u32 tries;
652 u8 cs;
653
654 for (tries = 0; tries < MAX_POLL_TRIES; tries++) {
655 if (mwifiex_read_reg(adapter, card->reg->poll_reg, &cs))
656 break;
657 else if ((cs & bits) == bits)
658 return 0;
659
660 usleep_range(10, 20);
661 }
662
663 dev_err(adapter->dev, "poll card status failed, tries = %d\n", tries);
664
665 return -1;
666}
667
668
669
670
671static int
672mwifiex_sdio_read_fw_status(struct mwifiex_adapter *adapter, u16 *dat)
673{
674 struct sdio_mmc_card *card = adapter->card;
675 const struct mwifiex_sdio_card_reg *reg = card->reg;
676 u8 fws0, fws1;
677
678 if (mwifiex_read_reg(adapter, reg->status_reg_0, &fws0))
679 return -1;
680
681 if (mwifiex_read_reg(adapter, reg->status_reg_1, &fws1))
682 return -1;
683
684 *dat = (u16) ((fws1 << 8) | fws0);
685
686 return 0;
687}
688
689
690
691
692
693
694
695static void mwifiex_sdio_disable_host_int(struct mwifiex_adapter *adapter)
696{
697 struct sdio_mmc_card *card = adapter->card;
698 struct sdio_func *func = card->func;
699
700 sdio_claim_host(func);
701 mwifiex_write_reg_locked(func, HOST_INT_MASK_REG, 0);
702 sdio_release_irq(func);
703 sdio_release_host(func);
704}
705
706
707
708
709static void mwifiex_interrupt_status(struct mwifiex_adapter *adapter)
710{
711 struct sdio_mmc_card *card = adapter->card;
712 u8 sdio_ireg;
713 unsigned long flags;
714
715 if (mwifiex_read_data_sync(adapter, card->mp_regs,
716 card->reg->max_mp_regs,
717 REG_PORT | MWIFIEX_SDIO_BYTE_MODE_MASK, 0)) {
718 dev_err(adapter->dev, "read mp_regs failed\n");
719 return;
720 }
721
722 sdio_ireg = card->mp_regs[HOST_INTSTATUS_REG];
723 if (sdio_ireg) {
724
725
726
727
728
729
730
731 dev_dbg(adapter->dev, "int: sdio_ireg = %#x\n", sdio_ireg);
732 spin_lock_irqsave(&adapter->int_lock, flags);
733 adapter->int_status |= sdio_ireg;
734 spin_unlock_irqrestore(&adapter->int_lock, flags);
735 }
736}
737
738
739
740
741
742
743
744static void
745mwifiex_sdio_interrupt(struct sdio_func *func)
746{
747 struct mwifiex_adapter *adapter;
748 struct sdio_mmc_card *card;
749
750 card = sdio_get_drvdata(func);
751 if (!card || !card->adapter) {
752 pr_debug("int: func=%p card=%p adapter=%p\n",
753 func, card, card ? card->adapter : NULL);
754 return;
755 }
756 adapter = card->adapter;
757
758 if (!adapter->pps_uapsd_mode && adapter->ps_state == PS_STATE_SLEEP)
759 adapter->ps_state = PS_STATE_AWAKE;
760
761 mwifiex_interrupt_status(adapter);
762 mwifiex_main_process(adapter);
763}
764
765
766
767
768
769
770
771static int mwifiex_sdio_enable_host_int(struct mwifiex_adapter *adapter)
772{
773 struct sdio_mmc_card *card = adapter->card;
774 struct sdio_func *func = card->func;
775 int ret;
776
777 sdio_claim_host(func);
778
779
780 ret = sdio_claim_irq(func, mwifiex_sdio_interrupt);
781 if (ret) {
782 dev_err(adapter->dev, "claim irq failed: ret=%d\n", ret);
783 goto out;
784 }
785
786
787 ret = mwifiex_write_reg_locked(func, HOST_INT_MASK_REG,
788 card->reg->host_int_enable);
789 if (ret) {
790 dev_err(adapter->dev, "enable host interrupt failed\n");
791 sdio_release_irq(func);
792 }
793
794out:
795 sdio_release_host(func);
796 return ret;
797}
798
799
800
801
802static int mwifiex_sdio_card_to_host(struct mwifiex_adapter *adapter,
803 u32 *type, u8 *buffer,
804 u32 npayload, u32 ioport)
805{
806 int ret;
807 u32 nb;
808
809 if (!buffer) {
810 dev_err(adapter->dev, "%s: buffer is NULL\n", __func__);
811 return -1;
812 }
813
814 ret = mwifiex_read_data_sync(adapter, buffer, npayload, ioport, 1);
815
816 if (ret) {
817 dev_err(adapter->dev, "%s: read iomem failed: %d\n", __func__,
818 ret);
819 return -1;
820 }
821
822 nb = le16_to_cpu(*(__le16 *) (buffer));
823 if (nb > npayload) {
824 dev_err(adapter->dev, "%s: invalid packet, nb=%d npayload=%d\n",
825 __func__, nb, npayload);
826 return -1;
827 }
828
829 *type = le16_to_cpu(*(__le16 *) (buffer + 2));
830
831 return ret;
832}
833
834
835
836
837
838
839
840
841static int mwifiex_prog_fw_w_helper(struct mwifiex_adapter *adapter,
842 struct mwifiex_fw_image *fw)
843{
844 struct sdio_mmc_card *card = adapter->card;
845 const struct mwifiex_sdio_card_reg *reg = card->reg;
846 int ret;
847 u8 *firmware = fw->fw_buf;
848 u32 firmware_len = fw->fw_len;
849 u32 offset = 0;
850 u8 base0, base1;
851 u8 *fwbuf;
852 u16 len = 0;
853 u32 txlen, tx_blocks = 0, tries;
854 u32 i = 0;
855
856 if (!firmware_len) {
857 dev_err(adapter->dev,
858 "firmware image not found! Terminating download\n");
859 return -1;
860 }
861
862 dev_dbg(adapter->dev, "info: downloading FW image (%d bytes)\n",
863 firmware_len);
864
865
866 fwbuf = kzalloc(MWIFIEX_UPLD_SIZE, GFP_KERNEL);
867 if (!fwbuf)
868 return -ENOMEM;
869
870
871 do {
872
873
874 ret = mwifiex_sdio_poll_card_status(adapter, CARD_IO_READY |
875 DN_LD_CARD_RDY);
876 if (ret) {
877 dev_err(adapter->dev, "FW download with helper:"
878 " poll status timeout @ %d\n", offset);
879 goto done;
880 }
881
882
883 if (offset >= firmware_len)
884 break;
885
886 for (tries = 0; tries < MAX_POLL_TRIES; tries++) {
887 ret = mwifiex_read_reg(adapter, reg->base_0_reg,
888 &base0);
889 if (ret) {
890 dev_err(adapter->dev,
891 "dev BASE0 register read failed: "
892 "base0=%#04X(%d). Terminating dnld\n",
893 base0, base0);
894 goto done;
895 }
896 ret = mwifiex_read_reg(adapter, reg->base_1_reg,
897 &base1);
898 if (ret) {
899 dev_err(adapter->dev,
900 "dev BASE1 register read failed: "
901 "base1=%#04X(%d). Terminating dnld\n",
902 base1, base1);
903 goto done;
904 }
905 len = (u16) (((base1 & 0xff) << 8) | (base0 & 0xff));
906
907 if (len)
908 break;
909
910 usleep_range(10, 20);
911 }
912
913 if (!len) {
914 break;
915 } else if (len > MWIFIEX_UPLD_SIZE) {
916 dev_err(adapter->dev,
917 "FW dnld failed @ %d, invalid length %d\n",
918 offset, len);
919 ret = -1;
920 goto done;
921 }
922
923 txlen = len;
924
925 if (len & BIT(0)) {
926 i++;
927 if (i > MAX_WRITE_IOMEM_RETRY) {
928 dev_err(adapter->dev,
929 "FW dnld failed @ %d, over max retry\n",
930 offset);
931 ret = -1;
932 goto done;
933 }
934 dev_err(adapter->dev, "CRC indicated by the helper:"
935 " len = 0x%04X, txlen = %d\n", len, txlen);
936 len &= ~BIT(0);
937
938 txlen = 0;
939 } else {
940 i = 0;
941
942
943
944 if (firmware_len - offset < txlen)
945 txlen = firmware_len - offset;
946
947 tx_blocks = (txlen + MWIFIEX_SDIO_BLOCK_SIZE - 1)
948 / MWIFIEX_SDIO_BLOCK_SIZE;
949
950
951 memmove(fwbuf, &firmware[offset], txlen);
952 }
953
954 ret = mwifiex_write_data_sync(adapter, fwbuf, tx_blocks *
955 MWIFIEX_SDIO_BLOCK_SIZE,
956 adapter->ioport);
957 if (ret) {
958 dev_err(adapter->dev,
959 "FW download, write iomem (%d) failed @ %d\n",
960 i, offset);
961 if (mwifiex_write_reg(adapter, CONFIGURATION_REG, 0x04))
962 dev_err(adapter->dev, "write CFG reg failed\n");
963
964 ret = -1;
965 goto done;
966 }
967
968 offset += txlen;
969 } while (true);
970
971 dev_dbg(adapter->dev, "info: FW download over, size %d bytes\n",
972 offset);
973
974 ret = 0;
975done:
976 kfree(fwbuf);
977 return ret;
978}
979
980
981
982
983
984
985static int mwifiex_check_fw_status(struct mwifiex_adapter *adapter,
986 u32 poll_num)
987{
988 struct sdio_mmc_card *card = adapter->card;
989 int ret = 0;
990 u16 firmware_stat;
991 u32 tries;
992 u8 winner_status;
993
994
995 for (tries = 0; tries < poll_num; tries++) {
996 ret = mwifiex_sdio_read_fw_status(adapter, &firmware_stat);
997 if (ret)
998 continue;
999 if (firmware_stat == FIRMWARE_READY_SDIO) {
1000 ret = 0;
1001 break;
1002 } else {
1003 msleep(100);
1004 ret = -1;
1005 }
1006 }
1007
1008 if (ret) {
1009 if (mwifiex_read_reg
1010 (adapter, card->reg->status_reg_0, &winner_status))
1011 winner_status = 0;
1012
1013 if (winner_status)
1014 adapter->winner = 0;
1015 else
1016 adapter->winner = 1;
1017 }
1018 return ret;
1019}
1020
1021
1022
1023
1024
1025
1026
1027
1028static int mwifiex_decode_rx_packet(struct mwifiex_adapter *adapter,
1029 struct sk_buff *skb, u32 upld_typ)
1030{
1031 u8 *cmd_buf;
1032
1033 skb_pull(skb, INTF_HEADER_LEN);
1034
1035 switch (upld_typ) {
1036 case MWIFIEX_TYPE_DATA:
1037 dev_dbg(adapter->dev, "info: --- Rx: Data packet ---\n");
1038 mwifiex_handle_rx_packet(adapter, skb);
1039 break;
1040
1041 case MWIFIEX_TYPE_CMD:
1042 dev_dbg(adapter->dev, "info: --- Rx: Cmd Response ---\n");
1043
1044 if (!adapter->curr_cmd) {
1045 cmd_buf = adapter->upld_buf;
1046
1047 if (adapter->ps_state == PS_STATE_SLEEP_CFM)
1048 mwifiex_process_sleep_confirm_resp(adapter,
1049 skb->data,
1050 skb->len);
1051
1052 memcpy(cmd_buf, skb->data,
1053 min_t(u32, MWIFIEX_SIZE_OF_CMD_BUFFER,
1054 skb->len));
1055
1056 dev_kfree_skb_any(skb);
1057 } else {
1058 adapter->cmd_resp_received = true;
1059 adapter->curr_cmd->resp_skb = skb;
1060 }
1061 break;
1062
1063 case MWIFIEX_TYPE_EVENT:
1064 dev_dbg(adapter->dev, "info: --- Rx: Event ---\n");
1065 adapter->event_cause = le32_to_cpu(*(__le32 *) skb->data);
1066
1067 if ((skb->len > 0) && (skb->len < MAX_EVENT_SIZE))
1068 memcpy(adapter->event_body,
1069 skb->data + MWIFIEX_EVENT_HEADER_LEN,
1070 skb->len);
1071
1072
1073 adapter->event_received = true;
1074 adapter->event_skb = skb;
1075
1076 break;
1077
1078 default:
1079 dev_err(adapter->dev, "unknown upload type %#x\n", upld_typ);
1080 dev_kfree_skb_any(skb);
1081 break;
1082 }
1083
1084 return 0;
1085}
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096static int mwifiex_sdio_card_to_host_mp_aggr(struct mwifiex_adapter *adapter,
1097 struct sk_buff *skb, u8 port)
1098{
1099 struct sdio_mmc_card *card = adapter->card;
1100 s32 f_do_rx_aggr = 0;
1101 s32 f_do_rx_cur = 0;
1102 s32 f_aggr_cur = 0;
1103 struct sk_buff *skb_deaggr;
1104 u32 pind;
1105 u32 pkt_len, pkt_type, mport;
1106 u8 *curr_ptr;
1107 u32 rx_len = skb->len;
1108
1109 if ((card->has_control_mask) && (port == CTRL_PORT)) {
1110
1111 dev_dbg(adapter->dev, "info: %s: no aggregation for cmd "
1112 "response\n", __func__);
1113
1114 f_do_rx_cur = 1;
1115 goto rx_curr_single;
1116 }
1117
1118 if (!card->mpa_rx.enabled) {
1119 dev_dbg(adapter->dev, "info: %s: rx aggregation disabled\n",
1120 __func__);
1121
1122 f_do_rx_cur = 1;
1123 goto rx_curr_single;
1124 }
1125
1126 if ((!card->has_control_mask && (card->mp_rd_bitmap &
1127 card->reg->data_port_mask)) ||
1128 (card->has_control_mask && (card->mp_rd_bitmap &
1129 (~((u32) CTRL_PORT_MASK))))) {
1130
1131 dev_dbg(adapter->dev, "info: %s: not last packet\n", __func__);
1132
1133 if (MP_RX_AGGR_IN_PROGRESS(card)) {
1134 if (MP_RX_AGGR_BUF_HAS_ROOM(card, skb->len)) {
1135 f_aggr_cur = 1;
1136 } else {
1137
1138 f_do_rx_aggr = 1;
1139 f_do_rx_cur = 1;
1140 }
1141 } else {
1142
1143 f_aggr_cur = 1;
1144 }
1145
1146 } else {
1147
1148 dev_dbg(adapter->dev, "info: %s: last packet\n", __func__);
1149
1150 if (MP_RX_AGGR_IN_PROGRESS(card)) {
1151 f_do_rx_aggr = 1;
1152 if (MP_RX_AGGR_BUF_HAS_ROOM(card, skb->len))
1153 f_aggr_cur = 1;
1154 else
1155
1156 f_do_rx_cur = 1;
1157 } else {
1158 f_do_rx_cur = 1;
1159 }
1160 }
1161
1162 if (f_aggr_cur) {
1163 dev_dbg(adapter->dev, "info: current packet aggregation\n");
1164
1165 mp_rx_aggr_setup(card, skb, port);
1166
1167 if (MP_RX_AGGR_PKT_LIMIT_REACHED(card) ||
1168 mp_rx_aggr_port_limit_reached(card)) {
1169 dev_dbg(adapter->dev, "info: %s: aggregated packet "
1170 "limit reached\n", __func__);
1171
1172 f_do_rx_aggr = 1;
1173 }
1174 }
1175
1176 if (f_do_rx_aggr) {
1177
1178 dev_dbg(adapter->dev, "info: do_rx_aggr: num of packets: %d\n",
1179 card->mpa_rx.pkt_cnt);
1180
1181 if (card->supports_sdio_new_mode) {
1182 int i;
1183 u32 port_count;
1184
1185 for (i = 0, port_count = 0; i < card->max_ports; i++)
1186 if (card->mpa_rx.ports & BIT(i))
1187 port_count++;
1188
1189
1190
1191
1192 port_count--;
1193 mport = (adapter->ioport | SDIO_MPA_ADDR_BASE |
1194 (port_count << 8)) + card->mpa_rx.start_port;
1195 } else {
1196 mport = (adapter->ioport | SDIO_MPA_ADDR_BASE |
1197 (card->mpa_rx.ports << 4)) +
1198 card->mpa_rx.start_port;
1199 }
1200
1201 if (mwifiex_read_data_sync(adapter, card->mpa_rx.buf,
1202 card->mpa_rx.buf_len, mport, 1))
1203 goto error;
1204
1205 curr_ptr = card->mpa_rx.buf;
1206
1207 for (pind = 0; pind < card->mpa_rx.pkt_cnt; pind++) {
1208
1209
1210 pkt_len = le16_to_cpu(*(__le16 *) &curr_ptr[0]);
1211 pkt_type = le16_to_cpu(*(__le16 *) &curr_ptr[2]);
1212
1213
1214 skb_deaggr = card->mpa_rx.skb_arr[pind];
1215
1216 if ((pkt_type == MWIFIEX_TYPE_DATA) && (pkt_len <=
1217 card->mpa_rx.len_arr[pind])) {
1218
1219 memcpy(skb_deaggr->data, curr_ptr, pkt_len);
1220
1221 skb_trim(skb_deaggr, pkt_len);
1222
1223
1224 mwifiex_decode_rx_packet(adapter, skb_deaggr,
1225 pkt_type);
1226 } else {
1227 dev_err(adapter->dev, "wrong aggr pkt:"
1228 " type=%d len=%d max_len=%d\n",
1229 pkt_type, pkt_len,
1230 card->mpa_rx.len_arr[pind]);
1231 dev_kfree_skb_any(skb_deaggr);
1232 }
1233 curr_ptr += card->mpa_rx.len_arr[pind];
1234 }
1235 MP_RX_AGGR_BUF_RESET(card);
1236 }
1237
1238rx_curr_single:
1239 if (f_do_rx_cur) {
1240 dev_dbg(adapter->dev, "info: RX: port: %d, rx_len: %d\n",
1241 port, rx_len);
1242
1243 if (mwifiex_sdio_card_to_host(adapter, &pkt_type,
1244 skb->data, skb->len,
1245 adapter->ioport + port))
1246 goto error;
1247
1248 mwifiex_decode_rx_packet(adapter, skb, pkt_type);
1249 }
1250
1251 return 0;
1252
1253error:
1254 if (MP_RX_AGGR_IN_PROGRESS(card)) {
1255
1256 for (pind = 0; pind < card->mpa_rx.pkt_cnt; pind++) {
1257
1258 skb_deaggr = card->mpa_rx.skb_arr[pind];
1259 dev_kfree_skb_any(skb_deaggr);
1260 }
1261 MP_RX_AGGR_BUF_RESET(card);
1262 }
1263
1264 if (f_do_rx_cur)
1265
1266 dev_kfree_skb_any(skb);
1267
1268 return -1;
1269}
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286static int mwifiex_process_int_status(struct mwifiex_adapter *adapter)
1287{
1288 struct sdio_mmc_card *card = adapter->card;
1289 const struct mwifiex_sdio_card_reg *reg = card->reg;
1290 int ret = 0;
1291 u8 sdio_ireg;
1292 struct sk_buff *skb;
1293 u8 port = CTRL_PORT;
1294 u32 len_reg_l, len_reg_u;
1295 u32 rx_blocks;
1296 u16 rx_len;
1297 unsigned long flags;
1298 u32 bitmap;
1299 u8 cr;
1300
1301 spin_lock_irqsave(&adapter->int_lock, flags);
1302 sdio_ireg = adapter->int_status;
1303 adapter->int_status = 0;
1304 spin_unlock_irqrestore(&adapter->int_lock, flags);
1305
1306 if (!sdio_ireg)
1307 return ret;
1308
1309
1310 if (sdio_ireg & DN_LD_CMD_PORT_HOST_INT_STATUS && adapter->cmd_sent)
1311 adapter->cmd_sent = false;
1312
1313
1314 if (sdio_ireg & UP_LD_CMD_PORT_HOST_INT_STATUS) {
1315 u32 pkt_type;
1316
1317
1318 rx_len = card->mp_regs[CMD_RD_LEN_1] << 8;
1319 rx_len |= (u16) card->mp_regs[CMD_RD_LEN_0];
1320 rx_blocks = DIV_ROUND_UP(rx_len, MWIFIEX_SDIO_BLOCK_SIZE);
1321 if (rx_len <= INTF_HEADER_LEN ||
1322 (rx_blocks * MWIFIEX_SDIO_BLOCK_SIZE) >
1323 MWIFIEX_RX_DATA_BUF_SIZE)
1324 return -1;
1325 rx_len = (u16) (rx_blocks * MWIFIEX_SDIO_BLOCK_SIZE);
1326
1327 skb = dev_alloc_skb(rx_len);
1328 if (!skb)
1329 return -1;
1330
1331 skb_put(skb, rx_len);
1332
1333 if (mwifiex_sdio_card_to_host(adapter, &pkt_type, skb->data,
1334 skb->len, adapter->ioport |
1335 CMD_PORT_SLCT)) {
1336 dev_err(adapter->dev,
1337 "%s: failed to card_to_host", __func__);
1338 dev_kfree_skb_any(skb);
1339 goto term_cmd;
1340 }
1341
1342 if ((pkt_type != MWIFIEX_TYPE_CMD) &&
1343 (pkt_type != MWIFIEX_TYPE_EVENT))
1344 dev_err(adapter->dev,
1345 "%s:Received wrong packet on cmd port",
1346 __func__);
1347
1348 mwifiex_decode_rx_packet(adapter, skb, pkt_type);
1349 }
1350
1351 if (sdio_ireg & DN_LD_HOST_INT_STATUS) {
1352 bitmap = (u32) card->mp_regs[reg->wr_bitmap_l];
1353 bitmap |= ((u32) card->mp_regs[reg->wr_bitmap_u]) << 8;
1354 if (card->supports_sdio_new_mode) {
1355 bitmap |=
1356 ((u32) card->mp_regs[reg->wr_bitmap_1l]) << 16;
1357 bitmap |=
1358 ((u32) card->mp_regs[reg->wr_bitmap_1u]) << 24;
1359 }
1360 card->mp_wr_bitmap = bitmap;
1361
1362 dev_dbg(adapter->dev, "int: DNLD: wr_bitmap=0x%x\n",
1363 card->mp_wr_bitmap);
1364 if (adapter->data_sent &&
1365 (card->mp_wr_bitmap & card->mp_data_port_mask)) {
1366 dev_dbg(adapter->dev,
1367 "info: <--- Tx DONE Interrupt --->\n");
1368 adapter->data_sent = false;
1369 }
1370 }
1371
1372
1373
1374
1375 if (card->has_control_mask && adapter->cmd_sent) {
1376
1377
1378 card->mp_wr_bitmap |=
1379 (u32) card->mp_regs[reg->wr_bitmap_l] & CTRL_PORT_MASK;
1380 if (card->mp_wr_bitmap & CTRL_PORT_MASK)
1381 adapter->cmd_sent = false;
1382 }
1383
1384 dev_dbg(adapter->dev, "info: cmd_sent=%d data_sent=%d\n",
1385 adapter->cmd_sent, adapter->data_sent);
1386 if (sdio_ireg & UP_LD_HOST_INT_STATUS) {
1387 bitmap = (u32) card->mp_regs[reg->rd_bitmap_l];
1388 bitmap |= ((u32) card->mp_regs[reg->rd_bitmap_u]) << 8;
1389 if (card->supports_sdio_new_mode) {
1390 bitmap |=
1391 ((u32) card->mp_regs[reg->rd_bitmap_1l]) << 16;
1392 bitmap |=
1393 ((u32) card->mp_regs[reg->rd_bitmap_1u]) << 24;
1394 }
1395 card->mp_rd_bitmap = bitmap;
1396 dev_dbg(adapter->dev, "int: UPLD: rd_bitmap=0x%x\n",
1397 card->mp_rd_bitmap);
1398
1399 while (true) {
1400 ret = mwifiex_get_rd_port(adapter, &port);
1401 if (ret) {
1402 dev_dbg(adapter->dev,
1403 "info: no more rd_port available\n");
1404 break;
1405 }
1406 len_reg_l = reg->rd_len_p0_l + (port << 1);
1407 len_reg_u = reg->rd_len_p0_u + (port << 1);
1408 rx_len = ((u16) card->mp_regs[len_reg_u]) << 8;
1409 rx_len |= (u16) card->mp_regs[len_reg_l];
1410 dev_dbg(adapter->dev, "info: RX: port=%d rx_len=%u\n",
1411 port, rx_len);
1412 rx_blocks =
1413 (rx_len + MWIFIEX_SDIO_BLOCK_SIZE -
1414 1) / MWIFIEX_SDIO_BLOCK_SIZE;
1415 if (rx_len <= INTF_HEADER_LEN ||
1416 (rx_blocks * MWIFIEX_SDIO_BLOCK_SIZE) >
1417 MWIFIEX_RX_DATA_BUF_SIZE) {
1418 dev_err(adapter->dev, "invalid rx_len=%d\n",
1419 rx_len);
1420 return -1;
1421 }
1422 rx_len = (u16) (rx_blocks * MWIFIEX_SDIO_BLOCK_SIZE);
1423
1424 skb = dev_alloc_skb(rx_len);
1425
1426 if (!skb) {
1427 dev_err(adapter->dev, "%s: failed to alloc skb",
1428 __func__);
1429 return -1;
1430 }
1431
1432 skb_put(skb, rx_len);
1433
1434 dev_dbg(adapter->dev, "info: rx_len = %d skb->len = %d\n",
1435 rx_len, skb->len);
1436
1437 if (mwifiex_sdio_card_to_host_mp_aggr(adapter, skb,
1438 port)) {
1439 dev_err(adapter->dev, "card_to_host_mpa failed:"
1440 " int status=%#x\n", sdio_ireg);
1441 goto term_cmd;
1442 }
1443 }
1444 }
1445
1446 return 0;
1447
1448term_cmd:
1449
1450 if (mwifiex_read_reg(adapter, CONFIGURATION_REG, &cr))
1451 dev_err(adapter->dev, "read CFG reg failed\n");
1452 else
1453 dev_dbg(adapter->dev, "info: CFG reg val = %d\n", cr);
1454
1455 if (mwifiex_write_reg(adapter, CONFIGURATION_REG, (cr | 0x04)))
1456 dev_err(adapter->dev, "write CFG reg failed\n");
1457 else
1458 dev_dbg(adapter->dev, "info: write success\n");
1459
1460 if (mwifiex_read_reg(adapter, CONFIGURATION_REG, &cr))
1461 dev_err(adapter->dev, "read CFG reg failed\n");
1462 else
1463 dev_dbg(adapter->dev, "info: CFG reg val =%x\n", cr);
1464
1465 return -1;
1466}
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482static int mwifiex_host_to_card_mp_aggr(struct mwifiex_adapter *adapter,
1483 u8 *payload, u32 pkt_len, u32 port,
1484 u32 next_pkt_len)
1485{
1486 struct sdio_mmc_card *card = adapter->card;
1487 int ret = 0;
1488 s32 f_send_aggr_buf = 0;
1489 s32 f_send_cur_buf = 0;
1490 s32 f_precopy_cur_buf = 0;
1491 s32 f_postcopy_cur_buf = 0;
1492 u32 mport;
1493
1494 if (!card->mpa_tx.enabled ||
1495 (card->has_control_mask && (port == CTRL_PORT)) ||
1496 (card->supports_sdio_new_mode && (port == CMD_PORT_SLCT))) {
1497 dev_dbg(adapter->dev, "info: %s: tx aggregation disabled\n",
1498 __func__);
1499
1500 f_send_cur_buf = 1;
1501 goto tx_curr_single;
1502 }
1503
1504 if (next_pkt_len) {
1505
1506 dev_dbg(adapter->dev, "info: %s: more packets in queue.\n",
1507 __func__);
1508
1509 if (MP_TX_AGGR_IN_PROGRESS(card)) {
1510 if (!mp_tx_aggr_port_limit_reached(card) &&
1511 MP_TX_AGGR_BUF_HAS_ROOM(card, pkt_len)) {
1512 f_precopy_cur_buf = 1;
1513
1514 if (!(card->mp_wr_bitmap &
1515 (1 << card->curr_wr_port)) ||
1516 !MP_TX_AGGR_BUF_HAS_ROOM(
1517 card, pkt_len + next_pkt_len))
1518 f_send_aggr_buf = 1;
1519 } else {
1520
1521 f_send_aggr_buf = 1;
1522
1523 if (mp_tx_aggr_port_limit_reached(card) ||
1524 !(card->mp_wr_bitmap &
1525 (1 << card->curr_wr_port)))
1526 f_send_cur_buf = 1;
1527 else
1528 f_postcopy_cur_buf = 1;
1529 }
1530 } else {
1531 if (MP_TX_AGGR_BUF_HAS_ROOM(card, pkt_len) &&
1532 (card->mp_wr_bitmap & (1 << card->curr_wr_port)))
1533 f_precopy_cur_buf = 1;
1534 else
1535 f_send_cur_buf = 1;
1536 }
1537 } else {
1538
1539 dev_dbg(adapter->dev, "info: %s: Last packet in Tx Queue.\n",
1540 __func__);
1541
1542 if (MP_TX_AGGR_IN_PROGRESS(card)) {
1543
1544 f_send_aggr_buf = 1;
1545
1546 if (MP_TX_AGGR_BUF_HAS_ROOM(card, pkt_len))
1547 f_precopy_cur_buf = 1;
1548 else
1549
1550 f_send_cur_buf = 1;
1551 } else {
1552 f_send_cur_buf = 1;
1553 }
1554 }
1555
1556 if (f_precopy_cur_buf) {
1557 dev_dbg(adapter->dev, "data: %s: precopy current buffer\n",
1558 __func__);
1559 MP_TX_AGGR_BUF_PUT(card, payload, pkt_len, port);
1560
1561 if (MP_TX_AGGR_PKT_LIMIT_REACHED(card) ||
1562 mp_tx_aggr_port_limit_reached(card))
1563
1564 f_send_aggr_buf = 1;
1565 }
1566
1567 if (f_send_aggr_buf) {
1568 dev_dbg(adapter->dev, "data: %s: send aggr buffer: %d %d\n",
1569 __func__,
1570 card->mpa_tx.start_port, card->mpa_tx.ports);
1571 if (card->supports_sdio_new_mode) {
1572 u32 port_count;
1573 int i;
1574
1575 for (i = 0, port_count = 0; i < card->max_ports; i++)
1576 if (card->mpa_tx.ports & BIT(i))
1577 port_count++;
1578
1579
1580
1581
1582 port_count--;
1583 mport = (adapter->ioport | SDIO_MPA_ADDR_BASE |
1584 (port_count << 8)) + card->mpa_tx.start_port;
1585 } else {
1586 mport = (adapter->ioport | SDIO_MPA_ADDR_BASE |
1587 (card->mpa_tx.ports << 4)) +
1588 card->mpa_tx.start_port;
1589 }
1590
1591 ret = mwifiex_write_data_to_card(adapter, card->mpa_tx.buf,
1592 card->mpa_tx.buf_len, mport);
1593
1594 MP_TX_AGGR_BUF_RESET(card);
1595 }
1596
1597tx_curr_single:
1598 if (f_send_cur_buf) {
1599 dev_dbg(adapter->dev, "data: %s: send current buffer %d\n",
1600 __func__, port);
1601 ret = mwifiex_write_data_to_card(adapter, payload, pkt_len,
1602 adapter->ioport + port);
1603 }
1604
1605 if (f_postcopy_cur_buf) {
1606 dev_dbg(adapter->dev, "data: %s: postcopy current buffer\n",
1607 __func__);
1608 MP_TX_AGGR_BUF_PUT(card, payload, pkt_len, port);
1609 }
1610
1611 return ret;
1612}
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624static int mwifiex_sdio_host_to_card(struct mwifiex_adapter *adapter,
1625 u8 type, struct sk_buff *skb,
1626 struct mwifiex_tx_param *tx_param)
1627{
1628 struct sdio_mmc_card *card = adapter->card;
1629 int ret;
1630 u32 buf_block_len;
1631 u32 blk_size;
1632 u32 port = CTRL_PORT;
1633 u8 *payload = (u8 *)skb->data;
1634 u32 pkt_len = skb->len;
1635
1636
1637 blk_size = MWIFIEX_SDIO_BLOCK_SIZE;
1638 buf_block_len = (pkt_len + blk_size - 1) / blk_size;
1639 *(__le16 *)&payload[0] = cpu_to_le16((u16)pkt_len);
1640 *(__le16 *)&payload[2] = cpu_to_le16(type);
1641
1642
1643
1644
1645
1646
1647
1648 if (type == MWIFIEX_TYPE_DATA) {
1649 ret = mwifiex_get_wr_port_data(adapter, &port);
1650 if (ret) {
1651 dev_err(adapter->dev, "%s: no wr_port available\n",
1652 __func__);
1653 return ret;
1654 }
1655 } else {
1656 adapter->cmd_sent = true;
1657
1658
1659 if (pkt_len <= INTF_HEADER_LEN ||
1660 pkt_len > MWIFIEX_UPLD_SIZE)
1661 dev_err(adapter->dev, "%s: payload=%p, nb=%d\n",
1662 __func__, payload, pkt_len);
1663
1664 if (card->supports_sdio_new_mode)
1665 port = CMD_PORT_SLCT;
1666 }
1667
1668
1669 pkt_len = buf_block_len * blk_size;
1670
1671 if (tx_param)
1672 ret = mwifiex_host_to_card_mp_aggr(adapter, payload, pkt_len,
1673 port, tx_param->next_pkt_len
1674 );
1675 else
1676 ret = mwifiex_host_to_card_mp_aggr(adapter, payload, pkt_len,
1677 port, 0);
1678
1679 if (ret) {
1680 if (type == MWIFIEX_TYPE_CMD)
1681 adapter->cmd_sent = false;
1682 if (type == MWIFIEX_TYPE_DATA)
1683 adapter->data_sent = false;
1684 } else {
1685 if (type == MWIFIEX_TYPE_DATA) {
1686 if (!(card->mp_wr_bitmap & (1 << card->curr_wr_port)))
1687 adapter->data_sent = true;
1688 else
1689 adapter->data_sent = false;
1690 }
1691 }
1692
1693 return ret;
1694}
1695
1696
1697
1698
1699static int mwifiex_alloc_sdio_mpa_buffers(struct mwifiex_adapter *adapter,
1700 u32 mpa_tx_buf_size, u32 mpa_rx_buf_size)
1701{
1702 struct sdio_mmc_card *card = adapter->card;
1703 int ret = 0;
1704
1705 card->mpa_tx.buf = kzalloc(mpa_tx_buf_size, GFP_KERNEL);
1706 if (!card->mpa_tx.buf) {
1707 ret = -1;
1708 goto error;
1709 }
1710
1711 card->mpa_tx.buf_size = mpa_tx_buf_size;
1712
1713 card->mpa_rx.buf = kzalloc(mpa_rx_buf_size, GFP_KERNEL);
1714 if (!card->mpa_rx.buf) {
1715 ret = -1;
1716 goto error;
1717 }
1718
1719 card->mpa_rx.buf_size = mpa_rx_buf_size;
1720
1721error:
1722 if (ret) {
1723 kfree(card->mpa_tx.buf);
1724 kfree(card->mpa_rx.buf);
1725 }
1726
1727 return ret;
1728}
1729
1730
1731
1732
1733
1734
1735
1736static void
1737mwifiex_unregister_dev(struct mwifiex_adapter *adapter)
1738{
1739 struct sdio_mmc_card *card = adapter->card;
1740
1741 if (adapter->card) {
1742 sdio_claim_host(card->func);
1743 sdio_disable_func(card->func);
1744 sdio_release_host(card->func);
1745 sdio_set_drvdata(card->func, NULL);
1746 }
1747}
1748
1749
1750
1751
1752
1753
1754static int mwifiex_register_dev(struct mwifiex_adapter *adapter)
1755{
1756 int ret;
1757 struct sdio_mmc_card *card = adapter->card;
1758 struct sdio_func *func = card->func;
1759
1760
1761 card->adapter = adapter;
1762
1763 sdio_claim_host(func);
1764
1765
1766 ret = sdio_set_block_size(card->func, MWIFIEX_SDIO_BLOCK_SIZE);
1767 sdio_release_host(func);
1768 if (ret) {
1769 pr_err("cannot set SDIO block size\n");
1770 return ret;
1771 }
1772
1773 sdio_set_drvdata(func, card);
1774
1775 adapter->dev = &func->dev;
1776
1777 strcpy(adapter->fw_name, card->firmware);
1778
1779 return 0;
1780}
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794static int mwifiex_init_sdio(struct mwifiex_adapter *adapter)
1795{
1796 struct sdio_mmc_card *card = adapter->card;
1797 const struct mwifiex_sdio_card_reg *reg = card->reg;
1798 int ret;
1799 u8 sdio_ireg;
1800
1801
1802
1803
1804
1805
1806 mwifiex_read_reg(adapter, HOST_INTSTATUS_REG, &sdio_ireg);
1807
1808
1809 mwifiex_init_sdio_ioport(adapter);
1810
1811
1812 card->mp_rd_bitmap = 0;
1813 card->mp_wr_bitmap = 0;
1814 card->curr_rd_port = reg->start_rd_port;
1815 card->curr_wr_port = reg->start_wr_port;
1816
1817 card->mp_data_port_mask = reg->data_port_mask;
1818
1819 card->mpa_tx.buf_len = 0;
1820 card->mpa_tx.pkt_cnt = 0;
1821 card->mpa_tx.start_port = 0;
1822
1823 card->mpa_tx.enabled = 1;
1824 card->mpa_tx.pkt_aggr_limit = card->mp_agg_pkt_limit;
1825
1826 card->mpa_rx.buf_len = 0;
1827 card->mpa_rx.pkt_cnt = 0;
1828 card->mpa_rx.start_port = 0;
1829
1830 card->mpa_rx.enabled = 1;
1831 card->mpa_rx.pkt_aggr_limit = card->mp_agg_pkt_limit;
1832
1833
1834 card->mp_regs = kzalloc(reg->max_mp_regs, GFP_KERNEL);
1835 if (!card->mp_regs)
1836 return -ENOMEM;
1837
1838
1839 card->mpa_rx.skb_arr = kzalloc((sizeof(void *)) *
1840 card->mp_agg_pkt_limit, GFP_KERNEL);
1841 card->mpa_rx.len_arr = kzalloc(sizeof(*card->mpa_rx.len_arr) *
1842 card->mp_agg_pkt_limit, GFP_KERNEL);
1843 ret = mwifiex_alloc_sdio_mpa_buffers(adapter,
1844 SDIO_MP_TX_AGGR_DEF_BUF_SIZE,
1845 SDIO_MP_RX_AGGR_DEF_BUF_SIZE);
1846 if (ret) {
1847 dev_err(adapter->dev, "failed to alloc sdio mp-a buffers\n");
1848 kfree(card->mp_regs);
1849 return -1;
1850 }
1851
1852 return ret;
1853}
1854
1855
1856
1857
1858static void mwifiex_cleanup_mpa_buf(struct mwifiex_adapter *adapter)
1859{
1860 struct sdio_mmc_card *card = adapter->card;
1861
1862 MP_TX_AGGR_BUF_RESET(card);
1863 MP_RX_AGGR_BUF_RESET(card);
1864}
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874static void mwifiex_cleanup_sdio(struct mwifiex_adapter *adapter)
1875{
1876 struct sdio_mmc_card *card = adapter->card;
1877
1878 kfree(card->mp_regs);
1879 kfree(card->mpa_rx.skb_arr);
1880 kfree(card->mpa_rx.len_arr);
1881 kfree(card->mpa_tx.buf);
1882 kfree(card->mpa_rx.buf);
1883}
1884
1885
1886
1887
1888static void
1889mwifiex_update_mp_end_port(struct mwifiex_adapter *adapter, u16 port)
1890{
1891 struct sdio_mmc_card *card = adapter->card;
1892 const struct mwifiex_sdio_card_reg *reg = card->reg;
1893 int i;
1894
1895 card->mp_end_port = port;
1896
1897 card->mp_data_port_mask = reg->data_port_mask;
1898
1899 if (reg->start_wr_port) {
1900 for (i = 1; i <= card->max_ports - card->mp_end_port; i++)
1901 card->mp_data_port_mask &=
1902 ~(1 << (card->max_ports - i));
1903 }
1904
1905 card->curr_wr_port = reg->start_wr_port;
1906
1907 dev_dbg(adapter->dev, "cmd: mp_end_port %d, data port mask 0x%x\n",
1908 port, card->mp_data_port_mask);
1909}
1910
1911static struct mmc_host *reset_host;
1912static void sdio_card_reset_worker(struct work_struct *work)
1913{
1914 struct mmc_host *target = reset_host;
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924 pr_err("Resetting card...\n");
1925 mmc_remove_host(target);
1926
1927 mdelay(20);
1928 mmc_add_host(target);
1929}
1930static DECLARE_WORK(card_reset_work, sdio_card_reset_worker);
1931
1932
1933static void mwifiex_sdio_card_reset(struct mwifiex_adapter *adapter)
1934{
1935 struct sdio_mmc_card *card = adapter->card;
1936
1937 reset_host = card->func->card->host;
1938 schedule_work(&card_reset_work);
1939}
1940
1941static struct mwifiex_if_ops sdio_ops = {
1942 .init_if = mwifiex_init_sdio,
1943 .cleanup_if = mwifiex_cleanup_sdio,
1944 .check_fw_status = mwifiex_check_fw_status,
1945 .prog_fw = mwifiex_prog_fw_w_helper,
1946 .register_dev = mwifiex_register_dev,
1947 .unregister_dev = mwifiex_unregister_dev,
1948 .enable_int = mwifiex_sdio_enable_host_int,
1949 .disable_int = mwifiex_sdio_disable_host_int,
1950 .process_int_status = mwifiex_process_int_status,
1951 .host_to_card = mwifiex_sdio_host_to_card,
1952 .wakeup = mwifiex_pm_wakeup_card,
1953 .wakeup_complete = mwifiex_pm_wakeup_card_complete,
1954
1955
1956 .update_mp_end_port = mwifiex_update_mp_end_port,
1957 .cleanup_mpa_buf = mwifiex_cleanup_mpa_buf,
1958 .cmdrsp_complete = mwifiex_sdio_cmdrsp_complete,
1959 .event_complete = mwifiex_sdio_event_complete,
1960 .card_reset = mwifiex_sdio_card_reset,
1961};
1962
1963
1964
1965
1966
1967
1968
1969static int
1970mwifiex_sdio_init_module(void)
1971{
1972 sema_init(&add_remove_card_sem, 1);
1973
1974
1975 user_rmmod = 0;
1976
1977 return sdio_register_driver(&mwifiex_sdio);
1978}
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989static void
1990mwifiex_sdio_cleanup_module(void)
1991{
1992 if (!down_interruptible(&add_remove_card_sem))
1993 up(&add_remove_card_sem);
1994
1995
1996 user_rmmod = 1;
1997
1998 cancel_work_sync(&card_reset_work);
1999 sdio_unregister_driver(&mwifiex_sdio);
2000}
2001
2002module_init(mwifiex_sdio_init_module);
2003module_exit(mwifiex_sdio_cleanup_module);
2004
2005MODULE_AUTHOR("Marvell International Ltd.");
2006MODULE_DESCRIPTION("Marvell WiFi-Ex SDIO Driver version " SDIO_VERSION);
2007MODULE_VERSION(SDIO_VERSION);
2008MODULE_LICENSE("GPL v2");
2009MODULE_FIRMWARE(SD8786_DEFAULT_FW_NAME);
2010MODULE_FIRMWARE(SD8787_DEFAULT_FW_NAME);
2011MODULE_FIRMWARE(SD8797_DEFAULT_FW_NAME);
2012MODULE_FIRMWARE(SD8897_DEFAULT_FW_NAME);
2013