git.sur5r.net Git - u-boot/blob - drivers/usb/gadget/f_rockusb.c

   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 }