forked from ~ljy/RK356X_SDK_RELEASE
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2023-12-08 01573e231f18eb2d99162747186f59511f56b64d 
 kernel/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c
....@@ -1,17 +1,6 @@
1
+// SPDX-License-Identifier: ISC
12 /*
23  * 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.
154  */
165 /* ****************** SDIO CARD Interface Functions **************************/
176 
....@@ -54,6 +43,9 @@
5443 
5544 #define SDIO_FUNC1_BLOCKSIZE		64
5645 #define SDIO_FUNC2_BLOCKSIZE		512
46
+#define SDIO_4373_FUNC2_BLOCKSIZE	256
47
+#define SDIO_435X_FUNC2_BLOCKSIZE	256
48
+#define SDIO_4329_FUNC2_BLOCKSIZE	128
5749 /* Maximum milliseconds to wait for F2 to come up */
5850 #define SDIO_WAIT_F2RDY	3000
5951 
....@@ -82,7 +74,7 @@
8274 		sdiodev->irq_en = false;
8375 	}
8476 
85
-	brcmf_sdio_isr(sdiodev->bus);
77
+	brcmf_sdio_isr(sdiodev->bus, true);
8678 
8779 	return IRQ_HANDLED;
8880 }
....@@ -94,7 +86,7 @@
9486 
9587 	brcmf_dbg(INTR, "IB intr triggered\n");
9688 
97
-	brcmf_sdio_isr(sdiodev->bus);
89
+	brcmf_sdio_isr(sdiodev->bus, false);
9890 }
9991 
10092 /* dummy handler for SDIO function 2 interrupt */
....@@ -130,7 +122,7 @@
130122 			brcmf_err("enable_irq_wake failed %d\n", ret);
131123 			return ret;
132124 		}
133
-		sdiodev->irq_wake = true;
125
+		disable_irq_wake(pdata->oob_irq_nr);
134126 
135127 		sdio_claim_host(sdiodev->func1);
136128 
....@@ -189,10 +181,6 @@
189181 		sdio_release_host(sdiodev->func1);
190182 
191183 		sdiodev->oob_irq_requested = false;
192
-		if (sdiodev->irq_wake) {
193
-			disable_irq_wake(pdata->oob_irq_nr);
194
-			sdiodev->irq_wake = false;
195
-		}
196184 		free_irq(pdata->oob_irq_nr, &sdiodev->func1->dev);
197185 		sdiodev->irq_en = false;
198186 		sdiodev->oob_irq_requested = false;
....@@ -315,7 +303,7 @@
315303 		/* bail out as things are really fishy here */
316304 		WARN(1, "invalid sdio function number: %d\n", func->num);
317305 		err = -ENOMEDIUM;
318
-	};
306
+	}
319307 
320308 	if (err == -ENOMEDIUM)
321309 		brcmf_sdiod_change_state(sdiodev, BRCMF_SDIOD_NOMEDIUM);
....@@ -342,6 +330,37 @@
342330 	return err;
343331 }
344332 
333
+static int mmc_submit_one(struct mmc_data *md, struct mmc_request *mr,
334
+			  struct mmc_command *mc, int sg_cnt, int req_sz,
335
+			  int func_blk_sz, u32 *addr,
336
+			  struct brcmf_sdio_dev *sdiodev,
337
+			  struct sdio_func *func, int write)
338
+{
339
+	int ret;
340
+
341
+	md->sg_len = sg_cnt;
342
+	md->blocks = req_sz / func_blk_sz;
343
+	mc->arg |= (*addr & 0x1FFFF) << 9;	/* address */
344
+	mc->arg |= md->blocks & 0x1FF;	/* block count */
345
+	/* incrementing addr for function 1 */
346
+	if (func->num == 1)
347
+		*addr += req_sz;
348
+
349
+	mmc_set_data_timeout(md, func->card);
350
+	mmc_wait_for_req(func->card->host, mr);
351
+
352
+	ret = mc->error ? mc->error : md->error;
353
+	if (ret == -ENOMEDIUM) {
354
+		brcmf_sdiod_change_state(sdiodev, BRCMF_SDIOD_NOMEDIUM);
355
+	} else if (ret != 0) {
356
+		brcmf_err("CMD53 sg block %s failed %d\n",
357
+			  write ? "write" : "read", ret);
358
+		ret = -EIO;
359
+	}
360
+
361
+	return ret;
362
+}
363
+
345364 /**
346365  * brcmf_sdiod_sglist_rw - SDIO interface function for block data access
347366  * @sdiodev: brcmfmac sdio device
....@@ -360,11 +379,11 @@
360379 				 struct sk_buff_head *pktlist)
361380 {
362381 	unsigned int req_sz, func_blk_sz, sg_cnt, sg_data_sz, pkt_offset;
363
-	unsigned int max_req_sz, orig_offset, dst_offset;
364
-	unsigned short max_seg_cnt, seg_sz;
382
+	unsigned int max_req_sz, src_offset, dst_offset;
365383 	unsigned char *pkt_data, *orig_data, *dst_data;
366
-	struct sk_buff *pkt_next = NULL, *local_pkt_next;
367384 	struct sk_buff_head local_list, *target_list;
385
+	struct sk_buff *pkt_next = NULL, *src;
386
+	unsigned short max_seg_cnt;
368387 	struct mmc_request mmc_req;
369388 	struct mmc_command mmc_cmd;
370389 	struct mmc_data mmc_dat;
....@@ -404,9 +423,6 @@
404423 	max_req_sz = sdiodev->max_request_size;
405424 	max_seg_cnt = min_t(unsigned short, sdiodev->max_segment_count,
406425 			    target_list->qlen);
407
-	seg_sz = target_list->qlen;
408
-	pkt_offset = 0;
409
-	pkt_next = target_list->next;
410426 
411427 	memset(&mmc_req, 0, sizeof(struct mmc_request));
412428 	memset(&mmc_cmd, 0, sizeof(struct mmc_command));
....@@ -425,12 +441,12 @@
425441 	mmc_req.cmd = &mmc_cmd;
426442 	mmc_req.data = &mmc_dat;
427443 
428
-	while (seg_sz) {
429
-		req_sz = 0;
430
-		sg_cnt = 0;
431
-		sgl = sdiodev->sgtable.sgl;
432
-		/* prep sg table */
433
-		while (pkt_next != (struct sk_buff *)target_list) {
444
+	req_sz = 0;
445
+	sg_cnt = 0;
446
+	sgl = sdiodev->sgtable.sgl;
447
+	skb_queue_walk(target_list, pkt_next) {
448
+		pkt_offset = 0;
449
+		while (pkt_offset < pkt_next->len) {
434450 			pkt_data = pkt_next->data + pkt_offset;
435451 			sg_data_sz = pkt_next->len - pkt_offset;
436452 			if (sg_data_sz > sdiodev->max_segment_size)
....@@ -439,72 +455,55 @@
439455 				sg_data_sz = max_req_sz - req_sz;
440456 
441457 			sg_set_buf(sgl, pkt_data, sg_data_sz);
442
-
443458 			sg_cnt++;
459
+
444460 			sgl = sg_next(sgl);
445461 			req_sz += sg_data_sz;
446462 			pkt_offset += sg_data_sz;
447
-			if (pkt_offset == pkt_next->len) {
448
-				pkt_offset = 0;
449
-				pkt_next = pkt_next->next;
463
+			if (req_sz >= max_req_sz || sg_cnt >= max_seg_cnt) {
464
+				ret = mmc_submit_one(&mmc_dat, &mmc_req, &mmc_cmd,
465
+						     sg_cnt, req_sz, func_blk_sz,
466
+						     &addr, sdiodev, func, write);
467
+				if (ret)
468
+					goto exit_queue_walk;
469
+				req_sz = 0;
470
+				sg_cnt = 0;
471
+				sgl = sdiodev->sgtable.sgl;
450472 			}
451
-
452
-			if (req_sz >= max_req_sz || sg_cnt >= max_seg_cnt)
453
-				break;
454
-		}
455
-		seg_sz -= sg_cnt;
456
-
457
-		if (req_sz % func_blk_sz != 0) {
458
-			brcmf_err("sg request length %u is not %u aligned\n",
459
-				  req_sz, func_blk_sz);
460
-			ret = -ENOTBLK;
461
-			goto exit;
462
-		}
463
-
464
-		mmc_dat.sg_len = sg_cnt;
465
-		mmc_dat.blocks = req_sz / func_blk_sz;
466
-		mmc_cmd.arg |= (addr & 0x1FFFF) << 9;	/* address */
467
-		mmc_cmd.arg |= mmc_dat.blocks & 0x1FF;	/* block count */
468
-		/* incrementing addr for function 1 */
469
-		if (func->num == 1)
470
-			addr += req_sz;
471
-
472
-		mmc_set_data_timeout(&mmc_dat, func->card);
473
-		mmc_wait_for_req(func->card->host, &mmc_req);
474
-
475
-		ret = mmc_cmd.error ? mmc_cmd.error : mmc_dat.error;
476
-		if (ret == -ENOMEDIUM) {
477
-			brcmf_sdiod_change_state(sdiodev, BRCMF_SDIOD_NOMEDIUM);
478
-			break;
479
-		} else if (ret != 0) {
480
-			brcmf_err("CMD53 sg block %s failed %d\n",
481
-				  write ? "write" : "read", ret);
482
-			ret = -EIO;
483
-			break;
484473 		}
485474 	}
486
-
475
+	if (sg_cnt)
476
+		ret = mmc_submit_one(&mmc_dat, &mmc_req, &mmc_cmd,
477
+				     sg_cnt, req_sz, func_blk_sz,
478
+				     &addr, sdiodev, func, write);
479
+exit_queue_walk:
487480 	if (!write && sdiodev->settings->bus.sdio.broken_sg_support) {
488
-		local_pkt_next = local_list.next;
489
-		orig_offset = 0;
481
+		src = __skb_peek(&local_list);
482
+		src_offset = 0;
490483 		skb_queue_walk(pktlist, pkt_next) {
491484 			dst_offset = 0;
492
-			do {
493
-				req_sz = local_pkt_next->len - orig_offset;
494
-				req_sz = min_t(uint, pkt_next->len - dst_offset,
495
-					       req_sz);
496
-				orig_data = local_pkt_next->data + orig_offset;
485
+
486
+			/* This is safe because we must have enough SKB data
487
+			 * in the local list to cover everything in pktlist.
488
+			 */
489
+			while (1) {
490
+				req_sz = pkt_next->len - dst_offset;
491
+				if (req_sz > src->len - src_offset)
492
+					req_sz = src->len - src_offset;
493
+
494
+				orig_data = src->data + src_offset;
497495 				dst_data = pkt_next->data + dst_offset;
498496 				memcpy(dst_data, orig_data, req_sz);
499
-				orig_offset += req_sz;
500
-				dst_offset += req_sz;
501
-				if (orig_offset == local_pkt_next->len) {
502
-					orig_offset = 0;
503
-					local_pkt_next = local_pkt_next->next;
497
+
498
+				src_offset += req_sz;
499
+				if (src_offset == src->len) {
500
+					src_offset = 0;
501
+					src = skb_peek_next(src, &local_list);
504502 				}
503
+				dst_offset += req_sz;
505504 				if (dst_offset == pkt_next->len)
506505 					break;
507
-			} while (!skb_queue_empty(&local_list));
506
+			}
508507 		}
509508 	}
510509 
....@@ -576,7 +575,7 @@
576575 
577576 	if (pktq->qlen == 1)
578577 		err = brcmf_sdiod_skbuff_read(sdiodev, sdiodev->func2, addr,
579
-					      pktq->next);
578
+					      __skb_peek(pktq));
580579 	else if (!sdiodev->sg_support) {
581580 		glom_skb = brcmu_pkt_buf_get_skb(totlen);
582581 		if (!glom_skb)
....@@ -865,7 +864,7 @@
865864 }
866865 #endif /* CONFIG_PM_SLEEP */
867866 
868
-static int brcmf_sdiod_remove(struct brcmf_sdio_dev *sdiodev)
867
+int brcmf_sdiod_remove(struct brcmf_sdio_dev *sdiodev)
869868 {
870869 	sdiodev->state = BRCMF_SDIOD_DOWN;
871870 	if (sdiodev->bus) {
....@@ -900,9 +899,10 @@
900899 	host->caps |= MMC_CAP_NONREMOVABLE;
901900 }
902901 
903
-static int brcmf_sdiod_probe(struct brcmf_sdio_dev *sdiodev)
902
+int brcmf_sdiod_probe(struct brcmf_sdio_dev *sdiodev)
904903 {
905904 	int ret = 0;
905
+	unsigned int f2_blksz = SDIO_FUNC2_BLOCKSIZE;
906906 
907907 	sdio_claim_host(sdiodev->func1);
908908 
....@@ -912,11 +912,29 @@
912912 		sdio_release_host(sdiodev->func1);
913913 		goto out;
914914 	}
915
-	ret = sdio_set_block_size(sdiodev->func2, SDIO_FUNC2_BLOCKSIZE);
915
+	switch (sdiodev->func2->device) {
916
+	case SDIO_DEVICE_ID_BROADCOM_CYPRESS_4373:
917
+		f2_blksz = SDIO_4373_FUNC2_BLOCKSIZE;
918
+		break;
919
+	case SDIO_DEVICE_ID_BROADCOM_4359:
920
+	case SDIO_DEVICE_ID_BROADCOM_4354:
921
+	case SDIO_DEVICE_ID_BROADCOM_4356:
922
+		f2_blksz = SDIO_435X_FUNC2_BLOCKSIZE;
923
+		break;
924
+	case SDIO_DEVICE_ID_BROADCOM_4329:
925
+		f2_blksz = SDIO_4329_FUNC2_BLOCKSIZE;
926
+		break;
927
+	default:
928
+		break;
929
+	}
930
+
931
+	ret = sdio_set_block_size(sdiodev->func2, f2_blksz);
916932 	if (ret) {
917933 		brcmf_err("Failed to set F2 blocksize\n");
918934 		sdio_release_host(sdiodev->func1);
919935 		goto out;
936
+	} else {
937
+		brcmf_dbg(SDIO, "set F2 blocksize to %d\n", f2_blksz);
920938 	}
921939 
922940 	/* increase F2 timeout */
....@@ -961,7 +979,7 @@
961979 	BRCMF_SDIO_DEVICE(SDIO_DEVICE_ID_BROADCOM_43340),
962980 	BRCMF_SDIO_DEVICE(SDIO_DEVICE_ID_BROADCOM_43341),
963981 	BRCMF_SDIO_DEVICE(SDIO_DEVICE_ID_BROADCOM_43362),
964
- 	BRCMF_SDIO_DEVICE(SDIO_DEVICE_ID_BROADCOM_43364),
982
+	BRCMF_SDIO_DEVICE(SDIO_DEVICE_ID_BROADCOM_43364),
965983 	BRCMF_SDIO_DEVICE(SDIO_DEVICE_ID_BROADCOM_4335_4339),
966984 	BRCMF_SDIO_DEVICE(SDIO_DEVICE_ID_BROADCOM_4339),
967985 	BRCMF_SDIO_DEVICE(SDIO_DEVICE_ID_BROADCOM_43430),
....@@ -969,7 +987,10 @@
969987 	BRCMF_SDIO_DEVICE(SDIO_DEVICE_ID_BROADCOM_43455),
970988 	BRCMF_SDIO_DEVICE(SDIO_DEVICE_ID_BROADCOM_4354),
971989 	BRCMF_SDIO_DEVICE(SDIO_DEVICE_ID_BROADCOM_4356),
972
-	BRCMF_SDIO_DEVICE(SDIO_DEVICE_ID_CYPRESS_4373),
990
+	BRCMF_SDIO_DEVICE(SDIO_DEVICE_ID_BROADCOM_4359),
991
+	BRCMF_SDIO_DEVICE(SDIO_DEVICE_ID_BROADCOM_CYPRESS_4373),
992
+	BRCMF_SDIO_DEVICE(SDIO_DEVICE_ID_BROADCOM_CYPRESS_43012),
993
+	BRCMF_SDIO_DEVICE(SDIO_DEVICE_ID_BROADCOM_CYPRESS_89359),
973994 	{ /* end: all zeroes */ }
974995 };
975996 MODULE_DEVICE_TABLE(sdio, brcmf_sdmmc_ids);
....@@ -1107,7 +1128,8 @@
11071128 	struct sdio_func *func;
11081129 	struct brcmf_bus *bus_if;
11091130 	struct brcmf_sdio_dev *sdiodev;
1110
-	mmc_pm_flag_t sdio_flags;
1131
+	mmc_pm_flag_t pm_caps, sdio_flags;
1132
+	int ret = 0;
11111133 
11121134 	func = container_of(dev, struct sdio_func, dev);
11131135 	brcmf_dbg(SDIO, "Enter: F%d\n", func->num);
....@@ -1118,19 +1140,33 @@
11181140 	bus_if = dev_get_drvdata(dev);
11191141 	sdiodev = bus_if->bus_priv.sdio;
11201142 
1121
-	brcmf_sdiod_freezer_on(sdiodev);
1122
-	brcmf_sdio_wd_timer(sdiodev->bus, 0);
1143
+	pm_caps = sdio_get_host_pm_caps(func);
11231144 
1124
-	sdio_flags = MMC_PM_KEEP_POWER;
1125
-	if (sdiodev->wowl_enabled) {
1126
-		if (sdiodev->settings->bus.sdio.oob_irq_supported)
1127
-			enable_irq_wake(sdiodev->settings->bus.sdio.oob_irq_nr);
1128
-		else
1129
-			sdio_flags |= MMC_PM_WAKE_SDIO_IRQ;
1145
+	if (pm_caps & MMC_PM_KEEP_POWER) {
1146
+		/* preserve card power during suspend */
1147
+		brcmf_sdiod_freezer_on(sdiodev);
1148
+		brcmf_sdio_wd_timer(sdiodev->bus, 0);
1149
+
1150
+		sdio_flags = MMC_PM_KEEP_POWER;
1151
+		if (sdiodev->wowl_enabled) {
1152
+			if (sdiodev->settings->bus.sdio.oob_irq_supported)
1153
+				enable_irq_wake(sdiodev->settings->bus.sdio.oob_irq_nr);
1154
+			else
1155
+				sdio_flags |= MMC_PM_WAKE_SDIO_IRQ;
1156
+		}
1157
+
1158
+		if (sdio_set_host_pm_flags(sdiodev->func1, sdio_flags))
1159
+			brcmf_err("Failed to set pm_flags %x\n", sdio_flags);
1160
+
1161
+	} else {
1162
+		/* power will be cut so remove device, probe again in resume */
1163
+		brcmf_sdiod_intr_unregister(sdiodev);
1164
+		ret = brcmf_sdiod_remove(sdiodev);
1165
+		if (ret)
1166
+			brcmf_err("Failed to remove device on suspend\n");
11301167 	}
1131
-	if (sdio_set_host_pm_flags(sdiodev->func1, sdio_flags))
1132
-		brcmf_err("Failed to set pm_flags %x\n", sdio_flags);
1133
-	return 0;
1168
+
1169
+	return ret;
11341170 }
11351171 
11361172 static int brcmf_ops_sdio_resume(struct device *dev)
....@@ -1138,13 +1174,27 @@
11381174 	struct brcmf_bus *bus_if = dev_get_drvdata(dev);
11391175 	struct brcmf_sdio_dev *sdiodev = bus_if->bus_priv.sdio;
11401176 	struct sdio_func *func = container_of(dev, struct sdio_func, dev);
1177
+	mmc_pm_flag_t pm_caps = sdio_get_host_pm_caps(func);
1178
+	int ret = 0;
11411179 
11421180 	brcmf_dbg(SDIO, "Enter: F%d\n", func->num);
11431181 	if (func->num != 2)
11441182 		return 0;
11451183 
1146
-	brcmf_sdiod_freezer_off(sdiodev);
1147
-	return 0;
1184
+	if (!(pm_caps & MMC_PM_KEEP_POWER)) {
1185
+		/* bus was powered off and device removed, probe again */
1186
+		ret = brcmf_sdiod_probe(sdiodev);
1187
+		if (ret)
1188
+			brcmf_err("Failed to probe device on resume\n");
1189
+	} else {
1190
+		if (sdiodev->wowl_enabled &&
1191
+		    sdiodev->settings->bus.sdio.oob_irq_supported)
1192
+			disable_irq_wake(sdiodev->settings->bus.sdio.oob_irq_nr);
1193
+
1194
+		brcmf_sdiod_freezer_off(sdiodev);
1195
+	}
1196
+
1197
+	return ret;
11481198 }
11491199 
11501200 static const struct dev_pm_ops brcmf_sdio_pm_ops = {
....@@ -1167,13 +1217,9 @@
11671217 	},
11681218 };
11691219 
1170
-void brcmf_sdio_register(void)
1220
+int brcmf_sdio_register(void)
11711221 {
1172
-	int ret;
1173
-
1174
-	ret = sdio_register_driver(&brcmf_sdmmc_driver);
1175
-	if (ret)
1176
-		brcmf_err("sdio_register_driver failed: %d\n", ret);
1222
+	return sdio_register_driver(&brcmf_sdmmc_driver);
11771223 }
11781224 
11791225 void brcmf_sdio_exit(void)