1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * (C) Copyright 2017 4 * 5 * Eddie Cai <eddie.cai.linux@gmail.com> 6 */ 7 #include <config.h> 8 #include <common.h> 9 #include <errno.h> 10 #include <malloc.h> 11 #include <memalign.h> 12 #include <linux/usb/ch9.h> 13 #include <linux/usb/gadget.h> 14 #include <linux/usb/composite.h> 15 #include <linux/compiler.h> 16 #include <version.h> 17 #include <g_dnl.h> 18 #include <asm/arch/f_rockusb.h> 19 20 static inline struct f_rockusb *func_to_rockusb(struct usb_function *f) 21 { 22 return container_of(f, struct f_rockusb, usb_function); 23 } 24 25 static struct usb_endpoint_descriptor fs_ep_in = { 26 .bLength = USB_DT_ENDPOINT_SIZE, 27 .bDescriptorType = USB_DT_ENDPOINT, 28 .bEndpointAddress = USB_DIR_IN, 29 .bmAttributes = USB_ENDPOINT_XFER_BULK, 30 .wMaxPacketSize = cpu_to_le16(64), 31 }; 32 33 static struct usb_endpoint_descriptor fs_ep_out = { 34 .bLength = USB_DT_ENDPOINT_SIZE, 35 .bDescriptorType = USB_DT_ENDPOINT, 36 .bEndpointAddress = USB_DIR_OUT, 37 .bmAttributes = USB_ENDPOINT_XFER_BULK, 38 .wMaxPacketSize = cpu_to_le16(64), 39 }; 40 41 static struct usb_endpoint_descriptor hs_ep_in = { 42 .bLength = USB_DT_ENDPOINT_SIZE, 43 .bDescriptorType = USB_DT_ENDPOINT, 44 .bEndpointAddress = USB_DIR_IN, 45 .bmAttributes = USB_ENDPOINT_XFER_BULK, 46 .wMaxPacketSize = cpu_to_le16(512), 47 }; 48 49 static struct usb_endpoint_descriptor hs_ep_out = { 50 .bLength = USB_DT_ENDPOINT_SIZE, 51 .bDescriptorType = USB_DT_ENDPOINT, 52 .bEndpointAddress = USB_DIR_OUT, 53 .bmAttributes = USB_ENDPOINT_XFER_BULK, 54 .wMaxPacketSize = cpu_to_le16(512), 55 }; 56 57 static struct usb_interface_descriptor interface_desc = { 58 .bLength = USB_DT_INTERFACE_SIZE, 59 .bDescriptorType = USB_DT_INTERFACE, 60 .bInterfaceNumber = 0x00, 61 .bAlternateSetting = 0x00, 62 .bNumEndpoints = 0x02, 63 .bInterfaceClass = ROCKUSB_INTERFACE_CLASS, 64 .bInterfaceSubClass = ROCKUSB_INTERFACE_SUB_CLASS, 65 .bInterfaceProtocol = ROCKUSB_INTERFACE_PROTOCOL, 66 }; 67 68 static struct usb_descriptor_header *rkusb_fs_function[] = { 69 (struct usb_descriptor_header *)&interface_desc, 70 (struct usb_descriptor_header *)&fs_ep_in, 71 (struct usb_descriptor_header *)&fs_ep_out, 72 }; 73 74 static struct usb_descriptor_header *rkusb_hs_function[] = { 75 (struct usb_descriptor_header *)&interface_desc, 76 (struct usb_descriptor_header *)&hs_ep_in, 77 (struct usb_descriptor_header *)&hs_ep_out, 78 NULL, 79 }; 80 81 static const char rkusb_name[] = "Rockchip Rockusb"; 82 83 static struct usb_string rkusb_string_defs[] = { 84 [0].s = rkusb_name, 85 { } /* end of list */ 86 }; 87 88 static struct usb_gadget_strings stringtab_rkusb = { 89 .language = 0x0409, /* en-us */ 90 .strings = rkusb_string_defs, 91 }; 92 93 static struct usb_gadget_strings *rkusb_strings[] = { 94 &stringtab_rkusb, 95 NULL, 96 }; 97 98 static struct f_rockusb *rockusb_func; 99 static void rx_handler_command(struct usb_ep *ep, struct usb_request *req); 100 static int rockusb_tx_write_csw(u32 tag, int residue, u8 status, int size); 101 102 struct f_rockusb *get_rkusb(void) 103 { 104 struct f_rockusb *f_rkusb = rockusb_func; 105 106 if (!f_rkusb) { 107 f_rkusb = memalign(CONFIG_SYS_CACHELINE_SIZE, sizeof(*f_rkusb)); 108 if (!f_rkusb) 109 return 0; 110 111 rockusb_func = f_rkusb; 112 memset(f_rkusb, 0, sizeof(*f_rkusb)); 113 } 114 115 if (!f_rkusb->buf_head) { 116 f_rkusb->buf_head = memalign(CONFIG_SYS_CACHELINE_SIZE, 117 RKUSB_BUF_SIZE); 118 if (!f_rkusb->buf_head) 119 return 0; 120 121 f_rkusb->buf = f_rkusb->buf_head; 122 memset(f_rkusb->buf_head, 0, RKUSB_BUF_SIZE); 123 } 124 return f_rkusb; 125 } 126 127 static struct usb_endpoint_descriptor *rkusb_ep_desc( 128 struct usb_gadget *g, 129 struct usb_endpoint_descriptor *fs, 130 struct usb_endpoint_descriptor *hs) 131 { 132 if (gadget_is_dualspeed(g) && g->speed == USB_SPEED_HIGH) 133 return hs; 134 return fs; 135 } 136 137 static void rockusb_complete(struct usb_ep *ep, struct usb_request *req) 138 { 139 int status = req->status; 140 141 if (!status) 142 return; 143 debug("status: %d ep '%s' trans: %d\n", status, ep->name, req->actual); 144 } 145 146 /* config the rockusb device*/ 147 static int rockusb_bind(struct usb_configuration *c, struct usb_function *f) 148 { 149 int id; 150 struct usb_gadget *gadget = c->cdev->gadget; 151 struct f_rockusb *f_rkusb = func_to_rockusb(f); 152 const char *s; 153 154 id = usb_interface_id(c, f); 155 if (id < 0) 156 return id; 157 interface_desc.bInterfaceNumber = id; 158 159 id = usb_string_id(c->cdev); 160 if (id < 0) 161 return id; 162 163 rkusb_string_defs[0].id = id; 164 interface_desc.iInterface = id; 165 166 f_rkusb->in_ep = usb_ep_autoconfig(gadget, &fs_ep_in); 167 if (!f_rkusb->in_ep) 168 return -ENODEV; 169 f_rkusb->in_ep->driver_data = c->cdev; 170 171 f_rkusb->out_ep = usb_ep_autoconfig(gadget, &fs_ep_out); 172 if (!f_rkusb->out_ep) 173 return -ENODEV; 174 f_rkusb->out_ep->driver_data = c->cdev; 175 176 f->descriptors = rkusb_fs_function; 177 178 if (gadget_is_dualspeed(gadget)) { 179 hs_ep_in.bEndpointAddress = fs_ep_in.bEndpointAddress; 180 hs_ep_out.bEndpointAddress = fs_ep_out.bEndpointAddress; 181 f->hs_descriptors = rkusb_hs_function; 182 } 183 184 s = env_get("serial#"); 185 if (s) 186 g_dnl_set_serialnumber((char *)s); 187 188 return 0; 189 } 190 191 static void rockusb_unbind(struct usb_configuration *c, struct usb_function *f) 192 { 193 /* clear the configuration*/ 194 memset(rockusb_func, 0, sizeof(*rockusb_func)); 195 } 196 197 static void rockusb_disable(struct usb_function *f) 198 { 199 struct f_rockusb *f_rkusb = func_to_rockusb(f); 200 201 usb_ep_disable(f_rkusb->out_ep); 202 usb_ep_disable(f_rkusb->in_ep); 203 204 if (f_rkusb->out_req) { 205 free(f_rkusb->out_req->buf); 206 usb_ep_free_request(f_rkusb->out_ep, f_rkusb->out_req); 207 f_rkusb->out_req = NULL; 208 } 209 if (f_rkusb->in_req) { 210 free(f_rkusb->in_req->buf); 211 usb_ep_free_request(f_rkusb->in_ep, f_rkusb->in_req); 212 f_rkusb->in_req = NULL; 213 } 214 if (f_rkusb->buf_head) { 215 free(f_rkusb->buf_head); 216 f_rkusb->buf_head = NULL; 217 f_rkusb->buf = NULL; 218 } 219 } 220 221 static struct usb_request *rockusb_start_ep(struct usb_ep *ep) 222 { 223 struct usb_request *req; 224 225 req = usb_ep_alloc_request(ep, 0); 226 if (!req) 227 return NULL; 228 229 req->length = EP_BUFFER_SIZE; 230 req->buf = memalign(CONFIG_SYS_CACHELINE_SIZE, EP_BUFFER_SIZE); 231 if (!req->buf) { 232 usb_ep_free_request(ep, req); 233 return NULL; 234 } 235 memset(req->buf, 0, req->length); 236 237 return req; 238 } 239 240 static int rockusb_set_alt(struct usb_function *f, unsigned int interface, 241 unsigned int alt) 242 { 243 int ret; 244 struct usb_composite_dev *cdev = f->config->cdev; 245 struct usb_gadget *gadget = cdev->gadget; 246 struct f_rockusb *f_rkusb = func_to_rockusb(f); 247 const struct usb_endpoint_descriptor *d; 248 249 debug("%s: func: %s intf: %d alt: %d\n", 250 __func__, f->name, interface, alt); 251 252 d = rkusb_ep_desc(gadget, &fs_ep_out, &hs_ep_out); 253 ret = usb_ep_enable(f_rkusb->out_ep, d); 254 if (ret) { 255 printf("failed to enable out ep\n"); 256 return ret; 257 } 258 259 f_rkusb->out_req = rockusb_start_ep(f_rkusb->out_ep); 260 if (!f_rkusb->out_req) { 261 printf("failed to alloc out req\n"); 262 ret = -EINVAL; 263 goto err; 264 } 265 f_rkusb->out_req->complete = rx_handler_command; 266 267 d = rkusb_ep_desc(gadget, &fs_ep_in, &hs_ep_in); 268 ret = usb_ep_enable(f_rkusb->in_ep, d); 269 if (ret) { 270 printf("failed to enable in ep\n"); 271 goto err; 272 } 273 274 f_rkusb->in_req = rockusb_start_ep(f_rkusb->in_ep); 275 if (!f_rkusb->in_req) { 276 printf("failed alloc req in\n"); 277 ret = -EINVAL; 278 goto err; 279 } 280 f_rkusb->in_req->complete = rockusb_complete; 281 282 ret = usb_ep_queue(f_rkusb->out_ep, f_rkusb->out_req, 0); 283 if (ret) 284 goto err; 285 286 return 0; 287 err: 288 rockusb_disable(f); 289 return ret; 290 } 291 292 static int rockusb_add(struct usb_configuration *c) 293 { 294 struct f_rockusb *f_rkusb = get_rkusb(); 295 int status; 296 297 debug("%s: cdev: 0x%p\n", __func__, c->cdev); 298 299 f_rkusb->usb_function.name = "f_rockusb"; 300 f_rkusb->usb_function.bind = rockusb_bind; 301 f_rkusb->usb_function.unbind = rockusb_unbind; 302 f_rkusb->usb_function.set_alt = rockusb_set_alt; 303 f_rkusb->usb_function.disable = rockusb_disable; 304 f_rkusb->usb_function.strings = rkusb_strings; 305 306 status = usb_add_function(c, &f_rkusb->usb_function); 307 if (status) { 308 free(f_rkusb); 309 rockusb_func = f_rkusb; 310 } 311 return status; 312 } 313 314 void rockusb_dev_init(char *dev_type, int dev_index) 315 { 316 struct f_rockusb *f_rkusb = get_rkusb(); 317 318 f_rkusb->dev_type = dev_type; 319 f_rkusb->dev_index = dev_index; 320 } 321 322 DECLARE_GADGET_BIND_CALLBACK(usb_dnl_rockusb, rockusb_add); 323 324 static int rockusb_tx_write(const char *buffer, unsigned int buffer_size) 325 { 326 struct usb_request *in_req = rockusb_func->in_req; 327 int ret; 328 329 memcpy(in_req->buf, buffer, buffer_size); 330 in_req->length = buffer_size; 331 usb_ep_dequeue(rockusb_func->in_ep, in_req); 332 ret = usb_ep_queue(rockusb_func->in_ep, in_req, 0); 333 if (ret) 334 printf("Error %d on queue\n", ret); 335 return 0; 336 } 337 338 static int rockusb_tx_write_str(const char *buffer) 339 { 340 return rockusb_tx_write(buffer, strlen(buffer)); 341 } 342 343 #ifdef DEBUG 344 static void printcbw(char *buf) 345 { 346 ALLOC_CACHE_ALIGN_BUFFER(struct fsg_bulk_cb_wrap, cbw, 347 sizeof(struct fsg_bulk_cb_wrap)); 348 349 memcpy((char *)cbw, buf, USB_BULK_CB_WRAP_LEN); 350 351 debug("cbw: signature:%x\n", cbw->signature); 352 debug("cbw: tag=%x\n", cbw->tag); 353 debug("cbw: data_transfer_length=%d\n", cbw->data_transfer_length); 354 debug("cbw: flags=%x\n", cbw->flags); 355 debug("cbw: lun=%d\n", cbw->lun); 356 debug("cbw: length=%d\n", cbw->length); 357 debug("cbw: ucOperCode=%x\n", cbw->CDB[0]); 358 debug("cbw: ucReserved=%x\n", cbw->CDB[1]); 359 debug("cbw: dwAddress:%x %x %x %x\n", cbw->CDB[5], cbw->CDB[4], 360 cbw->CDB[3], cbw->CDB[2]); 361 debug("cbw: ucReserved2=%x\n", cbw->CDB[6]); 362 debug("cbw: uslength:%x %x\n", cbw->CDB[8], cbw->CDB[7]); 363 } 364 365 static void printcsw(char *buf) 366 { 367 ALLOC_CACHE_ALIGN_BUFFER(struct bulk_cs_wrap, csw, 368 sizeof(struct bulk_cs_wrap)); 369 memcpy((char *)csw, buf, USB_BULK_CS_WRAP_LEN); 370 debug("csw: signature:%x\n", csw->signature); 371 debug("csw: tag:%x\n", csw->tag); 372 debug("csw: residue:%x\n", csw->residue); 373 debug("csw: status:%x\n", csw->status); 374 } 375 #endif 376 377 static int rockusb_tx_write_csw(u32 tag, int residue, u8 status, int size) 378 { 379 ALLOC_CACHE_ALIGN_BUFFER(struct bulk_cs_wrap, csw, 380 sizeof(struct bulk_cs_wrap)); 381 csw->signature = cpu_to_le32(USB_BULK_CS_SIG); 382 csw->tag = tag; 383 csw->residue = cpu_to_be32(residue); 384 csw->status = status; 385 #ifdef DEBUG 386 printcsw((char *)&csw); 387 #endif 388 return rockusb_tx_write((char *)csw, size); 389 } 390 391 static unsigned int rx_bytes_expected(struct usb_ep *ep) 392 { 393 struct f_rockusb *f_rkusb = get_rkusb(); 394 int rx_remain = f_rkusb->dl_size - f_rkusb->dl_bytes; 395 unsigned int rem; 396 unsigned int maxpacket = ep->maxpacket; 397 398 if (rx_remain <= 0) 399 return 0; 400 else if (rx_remain > EP_BUFFER_SIZE) 401 return EP_BUFFER_SIZE; 402 403 rem = rx_remain % maxpacket; 404 if (rem > 0) 405 rx_remain = rx_remain + (maxpacket - rem); 406 407 return rx_remain; 408 } 409 410 /* usb_request complete call back to handle down load image */ 411 static void rx_handler_dl_image(struct usb_ep *ep, struct usb_request *req) 412 { 413 struct f_rockusb *f_rkusb = get_rkusb(); 414 unsigned int transfer_size = 0; 415 const unsigned char *buffer = req->buf; 416 unsigned int buffer_size = req->actual; 417 418 transfer_size = f_rkusb->dl_size - f_rkusb->dl_bytes; 419 if (!f_rkusb->desc) { 420 char *type = f_rkusb->dev_type; 421 int index = f_rkusb->dev_index; 422 423 f_rkusb->desc = blk_get_dev(type, index); 424 if (!f_rkusb->desc || 425 f_rkusb->desc->type == DEV_TYPE_UNKNOWN) { 426 puts("invalid mmc device\n"); 427 rockusb_tx_write_csw(f_rkusb->tag, 0, CSW_FAIL, 428 USB_BULK_CS_WRAP_LEN); 429 return; 430 } 431 } 432 433 if (req->status != 0) { 434 printf("Bad status: %d\n", req->status); 435 rockusb_tx_write_csw(f_rkusb->tag, 0, CSW_FAIL, 436 USB_BULK_CS_WRAP_LEN); 437 return; 438 } 439 440 if (buffer_size < transfer_size) 441 transfer_size = buffer_size; 442 443 memcpy((void *)f_rkusb->buf, buffer, transfer_size); 444 f_rkusb->dl_bytes += transfer_size; 445 int blks = 0, blkcnt = transfer_size / 512; 446 447 debug("dl %x bytes, %x blks, write lba %x, dl_size:%x, dl_bytes:%x, ", 448 transfer_size, blkcnt, f_rkusb->lba, f_rkusb->dl_size, 449 f_rkusb->dl_bytes); 450 blks = blk_dwrite(f_rkusb->desc, f_rkusb->lba, blkcnt, f_rkusb->buf); 451 if (blks != blkcnt) { 452 printf("failed writing to device %s: %d\n", f_rkusb->dev_type, 453 f_rkusb->dev_index); 454 rockusb_tx_write_csw(f_rkusb->tag, 0, CSW_FAIL, 455 USB_BULK_CS_WRAP_LEN); 456 return; 457 } 458 f_rkusb->lba += blkcnt; 459 460 /* Check if transfer is done */ 461 if (f_rkusb->dl_bytes >= f_rkusb->dl_size) { 462 req->complete = rx_handler_command; 463 req->length = EP_BUFFER_SIZE; 464 f_rkusb->buf = f_rkusb->buf_head; 465 printf("transfer 0x%x bytes done\n", f_rkusb->dl_size); 466 f_rkusb->dl_size = 0; 467 rockusb_tx_write_csw(f_rkusb->tag, 0, CSW_GOOD, 468 USB_BULK_CS_WRAP_LEN); 469 } else { 470 req->length = rx_bytes_expected(ep); 471 if (f_rkusb->buf == f_rkusb->buf_head) 472 f_rkusb->buf = f_rkusb->buf_head + EP_BUFFER_SIZE; 473 else 474 f_rkusb->buf = f_rkusb->buf_head; 475 476 debug("remain %x bytes, %x sectors\n", req->length, 477 req->length / 512); 478 } 479 480 req->actual = 0; 481 usb_ep_queue(ep, req, 0); 482 } 483 484 static void cb_test_unit_ready(struct usb_ep *ep, struct usb_request *req) 485 { 486 ALLOC_CACHE_ALIGN_BUFFER(struct fsg_bulk_cb_wrap, cbw, 487 sizeof(struct fsg_bulk_cb_wrap)); 488 489 memcpy((char *)cbw, req->buf, USB_BULK_CB_WRAP_LEN); 490 491 rockusb_tx_write_csw(cbw->tag, cbw->data_transfer_length, 492 CSW_GOOD, USB_BULK_CS_WRAP_LEN); 493 } 494 495 static void cb_read_storage_id(struct usb_ep *ep, struct usb_request *req) 496 { 497 ALLOC_CACHE_ALIGN_BUFFER(struct fsg_bulk_cb_wrap, cbw, 498 sizeof(struct fsg_bulk_cb_wrap)); 499 char emmc_id[] = "EMMC "; 500 501 printf("read storage id\n"); 502 memcpy((char *)cbw, req->buf, USB_BULK_CB_WRAP_LEN); 503 rockusb_tx_write_str(emmc_id); 504 rockusb_tx_write_csw(cbw->tag, cbw->data_transfer_length, CSW_GOOD, 505 USB_BULK_CS_WRAP_LEN); 506 } 507 508 static void cb_write_lba(struct usb_ep *ep, struct usb_request *req) 509 { 510 ALLOC_CACHE_ALIGN_BUFFER(struct fsg_bulk_cb_wrap, cbw, 511 sizeof(struct fsg_bulk_cb_wrap)); 512 struct f_rockusb *f_rkusb = get_rkusb(); 513 int sector_count; 514 515 memcpy((char *)cbw, req->buf, USB_BULK_CB_WRAP_LEN); 516 sector_count = (int)get_unaligned_be16(&cbw->CDB[7]); 517 f_rkusb->lba = get_unaligned_be32(&cbw->CDB[2]); 518 f_rkusb->dl_size = sector_count * 512; 519 f_rkusb->dl_bytes = 0; 520 f_rkusb->tag = cbw->tag; 521 debug("require write %x bytes, %x sectors to lba %x\n", 522 f_rkusb->dl_size, sector_count, f_rkusb->lba); 523 524 if (f_rkusb->dl_size == 0) { 525 rockusb_tx_write_csw(cbw->tag, cbw->data_transfer_length, 526 CSW_FAIL, USB_BULK_CS_WRAP_LEN); 527 } else { 528 req->complete = rx_handler_dl_image; 529 req->length = rx_bytes_expected(ep); 530 } 531 } 532 533 void __weak rkusb_set_reboot_flag(int flag) 534 { 535 struct f_rockusb *f_rkusb = get_rkusb(); 536 537 printf("rockkusb set reboot flag: %d\n", f_rkusb->reboot_flag); 538 } 539 540 static void compl_do_reset(struct usb_ep *ep, struct usb_request *req) 541 { 542 struct f_rockusb *f_rkusb = get_rkusb(); 543 544 rkusb_set_reboot_flag(f_rkusb->reboot_flag); 545 do_reset(NULL, 0, 0, NULL); 546 } 547 548 static void cb_reboot(struct usb_ep *ep, struct usb_request *req) 549 { 550 ALLOC_CACHE_ALIGN_BUFFER(struct fsg_bulk_cb_wrap, cbw, 551 sizeof(struct fsg_bulk_cb_wrap)); 552 struct f_rockusb *f_rkusb = get_rkusb(); 553 554 memcpy((char *)cbw, req->buf, USB_BULK_CB_WRAP_LEN); 555 f_rkusb->reboot_flag = cbw->CDB[1]; 556 rockusb_func->in_req->complete = compl_do_reset; 557 rockusb_tx_write_csw(cbw->tag, cbw->data_transfer_length, CSW_GOOD, 558 USB_BULK_CS_WRAP_LEN); 559 } 560 561 static void cb_not_support(struct usb_ep *ep, struct usb_request *req) 562 { 563 ALLOC_CACHE_ALIGN_BUFFER(struct fsg_bulk_cb_wrap, cbw, 564 sizeof(struct fsg_bulk_cb_wrap)); 565 566 memcpy((char *)cbw, req->buf, USB_BULK_CB_WRAP_LEN); 567 printf("Rockusb command %x not support yet\n", cbw->CDB[0]); 568 rockusb_tx_write_csw(cbw->tag, 0, CSW_FAIL, USB_BULK_CS_WRAP_LEN); 569 } 570 571 static const struct cmd_dispatch_info cmd_dispatch_info[] = { 572 { 573 .cmd = K_FW_TEST_UNIT_READY, 574 .cb = cb_test_unit_ready, 575 }, 576 { 577 .cmd = K_FW_READ_FLASH_ID, 578 .cb = cb_read_storage_id, 579 }, 580 { 581 .cmd = K_FW_SET_DEVICE_ID, 582 .cb = cb_not_support, 583 }, 584 { 585 .cmd = K_FW_TEST_BAD_BLOCK, 586 .cb = cb_not_support, 587 }, 588 { 589 .cmd = K_FW_READ_10, 590 .cb = cb_not_support, 591 }, 592 { 593 .cmd = K_FW_WRITE_10, 594 .cb = cb_not_support, 595 }, 596 { 597 .cmd = K_FW_ERASE_10, 598 .cb = cb_not_support, 599 }, 600 { 601 .cmd = K_FW_WRITE_SPARE, 602 .cb = cb_not_support, 603 }, 604 { 605 .cmd = K_FW_READ_SPARE, 606 .cb = cb_not_support, 607 }, 608 { 609 .cmd = K_FW_ERASE_10_FORCE, 610 .cb = cb_not_support, 611 }, 612 { 613 .cmd = K_FW_GET_VERSION, 614 .cb = cb_not_support, 615 }, 616 { 617 .cmd = K_FW_LBA_READ_10, 618 .cb = cb_not_support, 619 }, 620 { 621 .cmd = K_FW_LBA_WRITE_10, 622 .cb = cb_write_lba, 623 }, 624 { 625 .cmd = K_FW_ERASE_SYS_DISK, 626 .cb = cb_not_support, 627 }, 628 { 629 .cmd = K_FW_SDRAM_READ_10, 630 .cb = cb_not_support, 631 }, 632 { 633 .cmd = K_FW_SDRAM_WRITE_10, 634 .cb = cb_not_support, 635 }, 636 { 637 .cmd = K_FW_SDRAM_EXECUTE, 638 .cb = cb_not_support, 639 }, 640 { 641 .cmd = K_FW_READ_FLASH_INFO, 642 .cb = cb_not_support, 643 }, 644 { 645 .cmd = K_FW_GET_CHIP_VER, 646 .cb = cb_not_support, 647 }, 648 { 649 .cmd = K_FW_LOW_FORMAT, 650 .cb = cb_not_support, 651 }, 652 { 653 .cmd = K_FW_SET_RESET_FLAG, 654 .cb = cb_not_support, 655 }, 656 { 657 .cmd = K_FW_SPI_READ_10, 658 .cb = cb_not_support, 659 }, 660 { 661 .cmd = K_FW_SPI_WRITE_10, 662 .cb = cb_not_support, 663 }, 664 { 665 .cmd = K_FW_SESSION, 666 .cb = cb_not_support, 667 }, 668 { 669 .cmd = K_FW_RESET, 670 .cb = cb_reboot, 671 }, 672 }; 673 674 static void rx_handler_command(struct usb_ep *ep, struct usb_request *req) 675 { 676 void (*func_cb)(struct usb_ep *ep, struct usb_request *req) = NULL; 677 678 ALLOC_CACHE_ALIGN_BUFFER(struct fsg_bulk_cb_wrap, cbw, 679 sizeof(struct fsg_bulk_cb_wrap)); 680 char *cmdbuf = req->buf; 681 int i; 682 683 if (req->status || req->length == 0) 684 return; 685 686 memcpy((char *)cbw, req->buf, USB_BULK_CB_WRAP_LEN); 687 #ifdef DEBUG 688 printcbw(req->buf); 689 #endif 690 691 for (i = 0; i < ARRAY_SIZE(cmd_dispatch_info); i++) { 692 if (cmd_dispatch_info[i].cmd == cbw->CDB[0]) { 693 func_cb = cmd_dispatch_info[i].cb; 694 break; 695 } 696 } 697 698 if (!func_cb) { 699 printf("unknown command: %s\n", (char *)req->buf); 700 rockusb_tx_write_str("FAILunknown command"); 701 } else { 702 if (req->actual < req->length) { 703 u8 *buf = (u8 *)req->buf; 704 705 buf[req->actual] = 0; 706 func_cb(ep, req); 707 } else { 708 puts("buffer overflow\n"); 709 rockusb_tx_write_str("FAILbuffer overflow"); 710 } 711 } 712 713 *cmdbuf = '\0'; 714 req->actual = 0; 715 usb_ep_queue(ep, req, 0); 716 } 717