xref: /rk3399_rockchip-uboot/drivers/usb/gadget/f_rockusb.c (revision 156fbe7cda4b7fa76135bfe4f47f55d5f0cc51a7)
1 /*
2  * Copyright 2017 Rockchip Electronics Co., Ltd
3  * Frank Wang <frank.wang@rock-chips.com>
4  *
5  * SPDX-License-Identifier:	GPL-2.0+
6  */
7 
8 #include <asm/io.h>
9 #include <android_avb/avb_ops_user.h>
10 #include <android_avb/rk_avb_ops_user.h>
11 #include <asm/arch/boot_mode.h>
12 #include <asm/arch/chip_info.h>
13 #include <write_keybox.h>
14 #include <linux/mtd/mtd.h>
15 #include <optee_include/OpteeClientInterface.h>
16 
17 #ifdef CONFIG_ROCKCHIP_VENDOR_PARTITION
18 #include <asm/arch/vendor.h>
19 #endif
20 #include <rockusb.h>
21 
22 #define ROCKUSB_INTERFACE_CLASS	0xff
23 #define ROCKUSB_INTERFACE_SUB_CLASS	0x06
24 #define ROCKUSB_INTERFACE_PROTOCOL	0x05
25 
26 #define ROCKCHIP_FLASH_BLOCK_SIZE	1024
27 #define ROCKCHIP_FLASH_PAGE_SIZE	4
28 
29 static struct usb_interface_descriptor rkusb_intf_desc = {
30 	.bLength		= USB_DT_INTERFACE_SIZE,
31 	.bDescriptorType	= USB_DT_INTERFACE,
32 	.bInterfaceNumber	= 0x00,
33 	.bAlternateSetting	= 0x00,
34 	.bNumEndpoints		= 0x02,
35 	.bInterfaceClass	= ROCKUSB_INTERFACE_CLASS,
36 	.bInterfaceSubClass	= ROCKUSB_INTERFACE_SUB_CLASS,
37 	.bInterfaceProtocol	= ROCKUSB_INTERFACE_PROTOCOL,
38 };
39 
40 static struct usb_descriptor_header *rkusb_fs_function[] = {
41 	(struct usb_descriptor_header *)&rkusb_intf_desc,
42 	(struct usb_descriptor_header *)&fsg_fs_bulk_in_desc,
43 	(struct usb_descriptor_header *)&fsg_fs_bulk_out_desc,
44 	NULL,
45 };
46 
47 static struct usb_descriptor_header *rkusb_hs_function[] = {
48 	(struct usb_descriptor_header *)&rkusb_intf_desc,
49 	(struct usb_descriptor_header *)&fsg_hs_bulk_in_desc,
50 	(struct usb_descriptor_header *)&fsg_hs_bulk_out_desc,
51 	NULL,
52 };
53 
54 static struct usb_descriptor_header *rkusb_ss_function[] = {
55 	(struct usb_descriptor_header *)&rkusb_intf_desc,
56 	(struct usb_descriptor_header *)&fsg_ss_bulk_in_desc,
57 	(struct usb_descriptor_header *)&fsg_ss_bulk_in_comp_desc,
58 	(struct usb_descriptor_header *)&fsg_ss_bulk_out_desc,
59 	(struct usb_descriptor_header *)&fsg_ss_bulk_out_comp_desc,
60 	NULL,
61 };
62 
63 struct rk_flash_info {
64 	u32	flash_size;
65 	u16	block_size;
66 	u8	page_size;
67 	u8	ecc_bits;
68 	u8	access_time;
69 	u8	manufacturer;
70 	u8	flash_mask;
71 } __packed;
72 
73 static int rkusb_rst_code; /* The subcode in reset command (0xFF) */
74 
75 int g_dnl_bind_fixup(struct usb_device_descriptor *dev, const char *name)
76 {
77 	if (IS_RKUSB_UMS_DNL(name)) {
78 		/* Fix to Rockchip's VID and PID */
79 		dev->idVendor  = __constant_cpu_to_le16(0x2207);
80 		dev->idProduct = __constant_cpu_to_le16(CONFIG_ROCKUSB_G_DNL_PID);
81 
82 		/* Enumerate as a loader device */
83 #if defined(CONFIG_SUPPORT_USBPLUG)
84 		dev->bcdUSB = cpu_to_le16(0x0200);
85 #else
86 		dev->bcdUSB = cpu_to_le16(0x0201);
87 #endif
88 	} else if (!strncmp(name, "usb_dnl_fastboot", 16)) {
89 		/* Fix to Google's VID and PID */
90 		dev->idVendor  = __constant_cpu_to_le16(0x18d1);
91 		dev->idProduct = __constant_cpu_to_le16(0xd00d);
92 	} else if (!strncmp(name, "usb_dnl_dfu", 11)) {
93 		/* Fix to Rockchip's VID and PID for DFU */
94 		dev->idVendor  = cpu_to_le16(0x2207);
95 		dev->idProduct = cpu_to_le16(0x0107);
96 	}
97 
98 	return 0;
99 }
100 
101 __maybe_unused
102 static inline void dump_cbw(struct fsg_bulk_cb_wrap *cbw)
103 {
104 	assert(!cbw);
105 
106 	debug("%s:\n", __func__);
107 	debug("Signature %x\n", cbw->Signature);
108 	debug("Tag %x\n", cbw->Tag);
109 	debug("DataTransferLength %x\n", cbw->DataTransferLength);
110 	debug("Flags %x\n", cbw->Flags);
111 	debug("LUN %x\n", cbw->Lun);
112 	debug("Length %x\n", cbw->Length);
113 	debug("OptionCode %x\n", cbw->CDB[0]);
114 	debug("SubCode %x\n", cbw->CDB[1]);
115 	debug("SectorAddr %x\n", get_unaligned_be32(&cbw->CDB[2]));
116 	debug("BlkSectors %x\n\n", get_unaligned_be16(&cbw->CDB[7]));
117 }
118 
119 static int rkusb_check_lun(struct fsg_common *common)
120 {
121 	struct fsg_lun *curlun;
122 
123 	/* Check the LUN */
124 	if (common->lun >= 0 && common->lun < common->nluns) {
125 		curlun = &common->luns[common->lun];
126 		if (common->cmnd[0] != SC_REQUEST_SENSE) {
127 			curlun->sense_data = SS_NO_SENSE;
128 			curlun->info_valid = 0;
129 		}
130 	} else {
131 		curlun = NULL;
132 		common->bad_lun_okay = 0;
133 
134 		/*
135 		 * INQUIRY and REQUEST SENSE commands are explicitly allowed
136 		 * to use unsupported LUNs; all others may not.
137 		 */
138 		if (common->cmnd[0] != SC_INQUIRY &&
139 		    common->cmnd[0] != SC_REQUEST_SENSE) {
140 			debug("unsupported LUN %d\n", common->lun);
141 			return -EINVAL;
142 		}
143 	}
144 
145 	return 0;
146 }
147 
148 static void __do_reset(struct usb_ep *ep, struct usb_request *req)
149 {
150 	u32 boot_flag = BOOT_NORMAL;
151 
152 	if (rkusb_rst_code == 0x03)
153 		boot_flag = BOOT_BROM_DOWNLOAD;
154 
155 	rkusb_rst_code = 0; /* restore to default */
156 	writel(boot_flag, (void *)CONFIG_ROCKCHIP_BOOT_MODE_REG);
157 
158 	do_reset(NULL, 0, 0, NULL);
159 }
160 
161 static int rkusb_do_reset(struct fsg_common *common,
162 			  struct fsg_buffhd *bh)
163 {
164 	common->data_size_from_cmnd = common->cmnd[4];
165 	common->residue = 0;
166 	bh->inreq->complete = __do_reset;
167 	bh->state = BUF_STATE_EMPTY;
168 
169 	rkusb_rst_code = !common->cmnd[1] ? 0xff : common->cmnd[1];
170 	return 0;
171 }
172 
173 static int rkusb_do_test_unit_ready(struct fsg_common *common,
174 				    struct fsg_buffhd *bh)
175 {
176 	common->residue = 0x06 << 24; /* Max block xfer support from host */
177 	common->data_dir = DATA_DIR_NONE;
178 	bh->state = BUF_STATE_EMPTY;
179 
180 	return 0;
181 }
182 
183 static int rkusb_do_read_flash_id(struct fsg_common *common,
184 				  struct fsg_buffhd *bh)
185 {
186 	u8 *buf = (u8 *)bh->buf;
187 	u32 len = 5;
188 	enum if_type type = ums[common->lun].block_dev.if_type;
189 
190 	if (type == IF_TYPE_MMC)
191 		memcpy((void *)&buf[0], "EMMC ", 5);
192 	else if (type == IF_TYPE_RKNAND)
193 		memcpy((void *)&buf[0], "NAND ", 5);
194 	else
195 		memcpy((void *)&buf[0], "UNKN ", 5); /* unknown */
196 
197 	/* Set data xfer size */
198 	common->residue = common->data_size_from_cmnd = len;
199 	common->data_size = len;
200 
201 	return len;
202 }
203 
204 static int rkusb_do_test_bad_block(struct fsg_common *common,
205 				   struct fsg_buffhd *bh)
206 {
207 	u8 *buf = (u8 *)bh->buf;
208 	u32 len = 64;
209 
210 	memset((void *)&buf[0], 0, len);
211 
212 	/* Set data xfer size */
213 	common->residue = common->data_size_from_cmnd = len;
214 	common->data_size = len;
215 
216 	return len;
217 }
218 
219 static int rkusb_do_read_flash_info(struct fsg_common *common,
220 				    struct fsg_buffhd *bh)
221 {
222 	struct blk_desc *desc = &ums[common->lun].block_dev;
223 	u8 *buf = (u8 *)bh->buf;
224 	u32 len = sizeof(struct rk_flash_info);
225 	struct rk_flash_info finfo = {
226 		.block_size = ROCKCHIP_FLASH_BLOCK_SIZE,
227 		.ecc_bits = 0,
228 		.page_size = ROCKCHIP_FLASH_PAGE_SIZE,
229 		.access_time = 40,
230 		.manufacturer = 0,
231 		.flash_mask = 0
232 	};
233 
234 	finfo.flash_size = (u32)desc->lba;
235 
236 	if (desc->if_type == IF_TYPE_MTD &&
237 	    (desc->devnum == BLK_MTD_NAND ||
238 	    desc->devnum == BLK_MTD_SPI_NAND)) {
239 		struct mtd_info *mtd = (struct mtd_info *)desc->bdev->priv;
240 
241 		if (mtd) {
242 			finfo.block_size = mtd->erasesize >> 9;
243 			finfo.page_size = mtd->writesize >> 9;
244 		}
245 	}
246 
247 	if (desc->if_type == IF_TYPE_MTD && desc->devnum == BLK_MTD_SPI_NOR) {
248 		/* RV1126/RK3308 mtd spinor keep the former upgrade mode */
249 #if !defined(CONFIG_ROCKCHIP_RV1126) && !defined(CONFIG_ROCKCHIP_RK3308)
250 		finfo.block_size = 0x100; /* Aligned to 128KB */
251 #else
252 		finfo.block_size = ROCKCHIP_FLASH_BLOCK_SIZE;
253 #endif
254 	}
255 
256 	debug("Flash info: block_size= %x page_size= %x\n", finfo.block_size,
257 	      finfo.page_size);
258 
259 	if (finfo.flash_size)
260 		finfo.flash_mask = 1;
261 
262 	memset((void *)&buf[0], 0, len);
263 	memcpy((void *)&buf[0], (void *)&finfo, len);
264 
265 	/* Set data xfer size */
266 	common->residue = common->data_size_from_cmnd = len;
267         /* legacy upgrade_tool does not set correct transfer size */
268 	common->data_size = len;
269 
270 	return len;
271 }
272 
273 static int rkusb_do_get_chip_info(struct fsg_common *common,
274 				  struct fsg_buffhd *bh)
275 {
276 	u8 *buf = (u8 *)bh->buf;
277 	u32 len = common->data_size;
278 	u32 chip_info[4];
279 
280 	memset((void *)chip_info, 0, sizeof(chip_info));
281 	rockchip_rockusb_get_chip_info(chip_info);
282 
283 	memset((void *)&buf[0], 0, len);
284 	memcpy((void *)&buf[0], (void *)chip_info, len);
285 
286 	/* Set data xfer size */
287 	common->residue = common->data_size_from_cmnd = len;
288 
289 	return len;
290 }
291 
292 static int rkusb_do_lba_erase(struct fsg_common *common,
293 			      struct fsg_buffhd *bh)
294 {
295 	struct fsg_lun *curlun = &common->luns[common->lun];
296 	u32 lba, amount;
297 	loff_t file_offset;
298 	int rc;
299 
300 	lba = get_unaligned_be32(&common->cmnd[2]);
301 	if (lba >= curlun->num_sectors) {
302 		curlun->sense_data = SS_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE;
303 		rc = -EINVAL;
304 		goto out;
305 	}
306 
307 	file_offset = ((loff_t) lba) << 9;
308 	amount = get_unaligned_be16(&common->cmnd[7]) << 9;
309 	if (unlikely(amount == 0)) {
310 		curlun->sense_data = SS_INVALID_FIELD_IN_CDB;
311 		rc = -EIO;
312 		goto out;
313 	}
314 
315 	/* Perform the erase */
316 	rc = ums[common->lun].erase_sector(&ums[common->lun],
317 			       file_offset / SECTOR_SIZE,
318 			       amount / SECTOR_SIZE);
319 	if (!rc) {
320 		curlun->sense_data = SS_MEDIUM_NOT_PRESENT;
321 		rc = -EIO;
322 	}
323 
324 out:
325 	common->data_dir = DATA_DIR_NONE;
326 	bh->state = BUF_STATE_EMPTY;
327 
328 	return rc;
329 }
330 
331 static int rkusb_do_erase_force(struct fsg_common *common,
332 				struct fsg_buffhd *bh)
333 {
334 	struct blk_desc *desc = &ums[common->lun].block_dev;
335 	struct fsg_lun *curlun = &common->luns[common->lun];
336 	u16 block_size = ROCKCHIP_FLASH_BLOCK_SIZE;
337 	u32 lba, amount;
338 	loff_t file_offset;
339 	int rc;
340 
341 	lba = get_unaligned_be32(&common->cmnd[2]);
342 	if (lba >= curlun->num_sectors) {
343 		curlun->sense_data = SS_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE;
344 		rc = -EINVAL;
345 		goto out;
346 	}
347 
348 	if (desc->if_type == IF_TYPE_MTD &&
349 	    (desc->devnum == BLK_MTD_NAND ||
350 	    desc->devnum == BLK_MTD_SPI_NAND)) {
351 		struct mtd_info *mtd = (struct mtd_info *)desc->bdev->priv;
352 
353 		if (mtd)
354 			block_size = mtd->erasesize >> 9;
355 	}
356 
357 	file_offset = ((loff_t)lba) * block_size;
358 	amount = get_unaligned_be16(&common->cmnd[7]) * block_size;
359 
360 	debug("%s lba= %x, nsec= %x\n", __func__, lba,
361 	      (u32)get_unaligned_be16(&common->cmnd[7]));
362 
363 	if (unlikely(amount == 0)) {
364 		curlun->sense_data = SS_INVALID_FIELD_IN_CDB;
365 		rc = -EIO;
366 		goto out;
367 	}
368 
369 	/* Perform the erase */
370 	rc = ums[common->lun].erase_sector(&ums[common->lun],
371 					   file_offset,
372 					   amount);
373 	if (!rc) {
374 		curlun->sense_data = SS_MEDIUM_NOT_PRESENT;
375 		rc = -EIO;
376 	}
377 
378 out:
379 	common->data_dir = DATA_DIR_NONE;
380 	bh->state = BUF_STATE_EMPTY;
381 
382 	return rc;
383 }
384 
385 #ifdef CONFIG_ROCKCHIP_VENDOR_PARTITION
386 static int rkusb_do_vs_write(struct fsg_common *common)
387 {
388 	struct fsg_lun		*curlun = &common->luns[common->lun];
389 	u16			type = get_unaligned_be16(&common->cmnd[4]);
390 	struct vendor_item	*vhead;
391 	struct fsg_buffhd	*bh;
392 	void			*data;
393 	int			rc;
394 
395 	if (common->data_size >= (u32)65536) {
396 		/* _MUST_ small than 64K */
397 		curlun->sense_data = SS_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE;
398 		return -EINVAL;
399 	}
400 
401 	common->residue         = common->data_size;
402 	common->usb_amount_left = common->data_size;
403 
404 	/* Carry out the file writes */
405 	if (unlikely(common->data_size == 0))
406 		return -EIO; /* No data to write */
407 
408 	for (;;) {
409 		if (common->usb_amount_left > 0) {
410 			/* Wait for the next buffer to become available */
411 			bh = common->next_buffhd_to_fill;
412 			if (bh->state != BUF_STATE_EMPTY)
413 				goto wait;
414 
415 			/* Request the next buffer */
416 			common->usb_amount_left      -= common->data_size;
417 			bh->outreq->length	     = common->data_size;
418 			bh->bulk_out_intended_length = common->data_size;
419 			bh->outreq->short_not_ok     = 1;
420 
421 			START_TRANSFER_OR(common, bulk_out, bh->outreq,
422 					  &bh->outreq_busy, &bh->state)
423 				/*
424 				 * Don't know what to do if
425 				 * common->fsg is NULL
426 				 */
427 				return -EIO;
428 			common->next_buffhd_to_fill = bh->next;
429 		} else {
430 			/* Then, wait for the data to become available */
431 			bh = common->next_buffhd_to_drain;
432 			if (bh->state != BUF_STATE_FULL)
433 				goto wait;
434 
435 			common->next_buffhd_to_drain = bh->next;
436 			bh->state = BUF_STATE_EMPTY;
437 
438 			/* Did something go wrong with the transfer? */
439 			if (bh->outreq->status != 0) {
440 				curlun->sense_data = SS_COMMUNICATION_FAILURE;
441 				curlun->info_valid = 1;
442 				break;
443 			}
444 
445 			/* Perform the write */
446 			vhead = (struct vendor_item *)bh->buf;
447 			data  = bh->buf + sizeof(struct vendor_item);
448 
449 			if (!type) {
450 				/* Vendor storage */
451 				rc = vendor_storage_write(vhead->id,
452 							  (char __user *)data,
453 							  vhead->size);
454 				if (rc < 0) {
455 					curlun->sense_data = SS_WRITE_ERROR;
456 					return -EIO;
457 				}
458 			} else if (type == 1) {
459 				/* RPMB */
460 				rc =
461 				write_keybox_to_secure_storage((u8 *)data,
462 							       vhead->size);
463 				if (rc < 0) {
464 					curlun->sense_data = SS_WRITE_ERROR;
465 					return -EIO;
466 				}
467 			} else if (type == 2) {
468 				/* security storage */
469 #ifdef CONFIG_RK_AVB_LIBAVB_USER
470 				debug("%s call rk_avb_write_perm_attr %d, %d\n",
471 				      __func__, vhead->id, vhead->size);
472 				rc = rk_avb_write_perm_attr(vhead->id,
473 							    (char __user *)data,
474 							    vhead->size);
475 				if (rc < 0) {
476 					curlun->sense_data = SS_WRITE_ERROR;
477 					return -EIO;
478 				}
479 #else
480 				printf("Please enable CONFIG_RK_AVB_LIBAVB_USER\n");
481 #endif
482 			} else if (type == 3) {
483 				/* efuse or otp*/
484 #ifdef CONFIG_OPTEE_CLIENT
485 				if (memcmp(data, "TAEK", 4) == 0) {
486 					if (vhead->size - 8 != 32) {
487 						printf("check ta encryption key size fail!\n");
488 						curlun->sense_data = SS_WRITE_ERROR;
489 						return -EIO;
490 					}
491 					if (trusty_write_ta_encryption_key((uint32_t *)(data + 8), 8) != 0) {
492 						printf("trusty_write_ta_encryption_key error!");
493 						curlun->sense_data = SS_WRITE_ERROR;
494 						return -EIO;
495 					}
496 				} else {
497 					printf("Unknown tag\n");
498 					curlun->sense_data = SS_WRITE_ERROR;
499 					return -EIO;
500 				}
501 #else
502 				printf("Please enable CONFIG_OPTEE_CLIENT\n");
503 #endif
504 			} else {
505 				return -EINVAL;
506 			}
507 
508 			common->residue -= common->data_size;
509 
510 			/* Did the host decide to stop early? */
511 			if (bh->outreq->actual != bh->outreq->length)
512 				common->short_packet_received = 1;
513 			break; /* Command done */
514 		}
515 wait:
516 		/* Wait for something to happen */
517 		rc = sleep_thread(common);
518 		if (rc)
519 			return rc;
520 	}
521 
522 	return -EIO; /* No default reply */
523 }
524 
525 static int rkusb_do_vs_read(struct fsg_common *common)
526 {
527 	struct fsg_lun		*curlun = &common->luns[common->lun];
528 	u16			type = get_unaligned_be16(&common->cmnd[4]);
529 	struct vendor_item	*vhead;
530 	struct fsg_buffhd	*bh;
531 	void			*data;
532 	int			rc;
533 
534 	if (common->data_size >= (u32)65536) {
535 		/* _MUST_ small than 64K */
536 		curlun->sense_data = SS_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE;
537 		return -EINVAL;
538 	}
539 
540 	common->residue         = common->data_size;
541 	common->usb_amount_left = common->data_size;
542 
543 	/* Carry out the file reads */
544 	if (unlikely(common->data_size == 0))
545 		return -EIO; /* No default reply */
546 
547 	for (;;) {
548 		/* Wait for the next buffer to become available */
549 		bh = common->next_buffhd_to_fill;
550 		while (bh->state != BUF_STATE_EMPTY) {
551 			rc = sleep_thread(common);
552 			if (rc)
553 				return rc;
554 		}
555 
556 		memset(bh->buf, 0, FSG_BUFLEN);
557 		vhead = (struct vendor_item *)bh->buf;
558 		data  = bh->buf + sizeof(struct vendor_item);
559 		vhead->id = get_unaligned_be16(&common->cmnd[2]);
560 
561 		if (!type) {
562 			/* Vendor storage */
563 			rc = vendor_storage_read(vhead->id,
564 						 (char __user *)data,
565 						 common->data_size);
566 			if (!rc) {
567 				curlun->sense_data = SS_UNRECOVERED_READ_ERROR;
568 				return -EIO;
569 			}
570 			vhead->size = rc;
571 		} else if (type == 1) {
572 			/* RPMB */
573 			rc =
574 			read_raw_data_from_secure_storage((u8 *)data,
575 							  common->data_size);
576 			if (!rc) {
577 				curlun->sense_data = SS_UNRECOVERED_READ_ERROR;
578 				return -EIO;
579 			}
580 			vhead->size = rc;
581 		} else if (type == 2) {
582 			/* security storage */
583 #ifdef CONFIG_RK_AVB_LIBAVB_USER
584 			rc = rk_avb_read_perm_attr(vhead->id,
585 						   (char __user *)data,
586 						   vhead->size);
587 			if (rc < 0)
588 				return -EIO;
589 			vhead->size = rc;
590 #else
591 			printf("Please enable CONFIG_RK_AVB_LIBAVB_USER!\n");
592 #endif
593 		} else {
594 			return -EINVAL;
595 		}
596 
597 		common->residue   -= common->data_size;
598 		bh->inreq->length = common->data_size;
599 		bh->state         = BUF_STATE_FULL;
600 
601 		break; /* No more left to read */
602 	}
603 
604 	return -EIO; /* No default reply */
605 }
606 #endif
607 
608 static int rkusb_do_read_capacity(struct fsg_common *common,
609 				  struct fsg_buffhd *bh)
610 {
611 	u8 *buf = (u8 *)bh->buf;
612 	u32 len = common->data_size;
613 	enum if_type type = ums[common->lun].block_dev.if_type;
614 	int devnum = ums[common->lun].block_dev.devnum;
615 
616 	/*
617 	 * bit[0]: Direct LBA, 0: Disabled;
618 	 * bit[1]: Vendor Storage API, 0: Disabed (default);
619 	 * bit[2]: First 4M Access, 0: Disabled;
620 	 * bit[3]: Read LBA On, 0: Disabed (default);
621 	 * bit[4]: New Vendor Storage API, 0: Disabed;
622 	 * bit[5:63}: Reserved.
623 	 */
624 	memset((void *)&buf[0], 0, len);
625 	if (type == IF_TYPE_MMC || type == IF_TYPE_SD)
626 		buf[0] = BIT(0) | BIT(2) | BIT(4);
627 	else
628 		buf[0] = BIT(0) | BIT(4);
629 
630 	if (type == IF_TYPE_MTD &&
631 	    (devnum == BLK_MTD_NAND ||
632 	    devnum == BLK_MTD_SPI_NAND))
633 		buf[0] |= (1 << 6);
634 
635 #if !defined(CONFIG_ROCKCHIP_RV1126) && !defined(CONFIG_ROCKCHIP_RK3308)
636 	if (type == IF_TYPE_MTD && devnum == BLK_MTD_SPI_NOR)
637 		buf[0] |= (1 << 6);
638 #endif
639 
640 #if defined(CONFIG_ROCKCHIP_RK3568)
641 	buf[1] = BIT(0);
642 #endif
643 	/* Set data xfer size */
644 	common->residue = len;
645 	common->data_size_from_cmnd = len;
646 
647 	return len;
648 }
649 
650 static void rkusb_fixup_cbwcb(struct fsg_common *common,
651 			      struct fsg_buffhd *bh)
652 {
653 	struct usb_request      *req = bh->outreq;
654 	struct fsg_bulk_cb_wrap *cbw = req->buf;
655 
656 	/* FIXME cbw.DataTransferLength was not set by Upgrade Tool */
657 	common->data_size = le32_to_cpu(cbw->DataTransferLength);
658 	if (common->data_size == 0) {
659 		common->data_size =
660 		get_unaligned_be16(&common->cmnd[7]) << 9;
661 		printf("Trasfer Length NOT set, please use new version tool\n");
662 		debug("%s %d, cmnd1 %x\n", __func__,
663 		      get_unaligned_be16(&common->cmnd[7]),
664 		      get_unaligned_be16(&common->cmnd[1]));
665 	}
666 	if (cbw->Flags & USB_BULK_IN_FLAG)
667 		common->data_dir = DATA_DIR_TO_HOST;
668 	else
669 		common->data_dir = DATA_DIR_FROM_HOST;
670 
671 	/* Not support */
672 	common->cmnd[1] = 0;
673 }
674 
675 static int rkusb_cmd_process(struct fsg_common *common,
676 			     struct fsg_buffhd *bh, int *reply)
677 {
678 	struct usb_request	*req = bh->outreq;
679 	struct fsg_bulk_cb_wrap	*cbw = req->buf;
680 	int rc;
681 
682 	dump_cbw(cbw);
683 
684 	if (rkusb_check_lun(common)) {
685 		*reply = -EINVAL;
686 		return RKUSB_RC_ERROR;
687 	}
688 
689 	switch (common->cmnd[0]) {
690 	case RKUSB_TEST_UNIT_READY:
691 		*reply = rkusb_do_test_unit_ready(common, bh);
692 		rc = RKUSB_RC_FINISHED;
693 		break;
694 
695 	case RKUSB_READ_FLASH_ID:
696 		*reply = rkusb_do_read_flash_id(common, bh);
697 		rc = RKUSB_RC_FINISHED;
698 		break;
699 
700 	case RKUSB_TEST_BAD_BLOCK:
701 		*reply = rkusb_do_test_bad_block(common, bh);
702 		rc = RKUSB_RC_FINISHED;
703 		break;
704 
705 	case RKUSB_ERASE_10_FORCE:
706 		*reply = rkusb_do_erase_force(common, bh);
707 		rc = RKUSB_RC_FINISHED;
708 		break;
709 
710 	case RKUSB_LBA_READ_10:
711 		rkusb_fixup_cbwcb(common, bh);
712 		common->cmnd[0] = SC_READ_10;
713 		common->cmnd[1] = 0; /* Not support */
714 		rc = RKUSB_RC_CONTINUE;
715 		break;
716 
717 	case RKUSB_LBA_WRITE_10:
718 		rkusb_fixup_cbwcb(common, bh);
719 		common->cmnd[0] = SC_WRITE_10;
720 		common->cmnd[1] = 0; /* Not support */
721 		rc = RKUSB_RC_CONTINUE;
722 		break;
723 
724 	case RKUSB_READ_FLASH_INFO:
725 		*reply = rkusb_do_read_flash_info(common, bh);
726 		rc = RKUSB_RC_FINISHED;
727 		break;
728 
729 	case RKUSB_GET_CHIP_VER:
730 		*reply = rkusb_do_get_chip_info(common, bh);
731 		rc = RKUSB_RC_FINISHED;
732 		break;
733 
734 	case RKUSB_LBA_ERASE:
735 		*reply = rkusb_do_lba_erase(common, bh);
736 		rc = RKUSB_RC_FINISHED;
737 		break;
738 
739 #ifdef CONFIG_ROCKCHIP_VENDOR_PARTITION
740 	case RKUSB_VS_WRITE:
741 		*reply = rkusb_do_vs_write(common);
742 		rc = RKUSB_RC_FINISHED;
743 		break;
744 
745 	case RKUSB_VS_READ:
746 		*reply = rkusb_do_vs_read(common);
747 		rc = RKUSB_RC_FINISHED;
748 		break;
749 #endif
750 
751 	case RKUSB_READ_CAPACITY:
752 		*reply = rkusb_do_read_capacity(common, bh);
753 		rc = RKUSB_RC_FINISHED;
754 		break;
755 
756 	case RKUSB_RESET:
757 		*reply = rkusb_do_reset(common, bh);
758 		rc = RKUSB_RC_FINISHED;
759 		break;
760 
761 	case RKUSB_READ_10:
762 	case RKUSB_WRITE_10:
763 		printf("CMD Not support, pls use new version Tool\n");
764 	case RKUSB_SET_DEVICE_ID:
765 	case RKUSB_ERASE_10:
766 	case RKUSB_WRITE_SPARE:
767 	case RKUSB_READ_SPARE:
768 	case RKUSB_GET_VERSION:
769 	case RKUSB_ERASE_SYS_DISK:
770 	case RKUSB_SDRAM_READ_10:
771 	case RKUSB_SDRAM_WRITE_10:
772 	case RKUSB_SDRAM_EXECUTE:
773 	case RKUSB_LOW_FORMAT:
774 	case RKUSB_SET_RESET_FLAG:
775 	case RKUSB_SPI_READ_10:
776 	case RKUSB_SPI_WRITE_10:
777 	case RKUSB_SESSION:
778 		/* Fall through */
779 	default:
780 		rc = RKUSB_RC_UNKNOWN_CMND;
781 		break;
782 	}
783 
784 	return rc;
785 }
786 
787 DECLARE_GADGET_BIND_CALLBACK(rkusb_ums_dnl, fsg_add);
788