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
func_to_rockusb(struct usb_function * f)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
get_rkusb(void)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
rkusb_ep_desc(struct usb_gadget * g,struct usb_endpoint_descriptor * fs,struct usb_endpoint_descriptor * hs)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
rockusb_complete(struct usb_ep * ep,struct usb_request * req)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*/
rockusb_bind(struct usb_configuration * c,struct usb_function * f)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
rockusb_unbind(struct usb_configuration * c,struct usb_function * f)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
rockusb_disable(struct usb_function * f)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
rockusb_start_ep(struct usb_ep * ep)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
rockusb_set_alt(struct usb_function * f,unsigned int interface,unsigned int alt)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
rockusb_add(struct usb_configuration * c)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
rockusb_dev_init(char * dev_type,int dev_index)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
rockusb_tx_write(const char * buffer,unsigned int buffer_size)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 debug("Transferring 0x%x bytes\n", buffer_size);
332 usb_ep_dequeue(rockusb_func->in_ep, in_req);
333 ret = usb_ep_queue(rockusb_func->in_ep, in_req, 0);
334 if (ret)
335 printf("Error %d on queue\n", ret);
336 return 0;
337 }
338
rockusb_tx_write_str(const char * buffer)339 static int rockusb_tx_write_str(const char *buffer)
340 {
341 return rockusb_tx_write(buffer, strlen(buffer));
342 }
343
344 #ifdef DEBUG
printcbw(char * buf)345 static void printcbw(char *buf)
346 {
347 ALLOC_CACHE_ALIGN_BUFFER(struct fsg_bulk_cb_wrap, cbw,
348 sizeof(struct fsg_bulk_cb_wrap));
349
350 memcpy((char *)cbw, buf, USB_BULK_CB_WRAP_LEN);
351
352 debug("cbw: signature:%x\n", cbw->signature);
353 debug("cbw: tag=%x\n", cbw->tag);
354 debug("cbw: data_transfer_length=%d\n", cbw->data_transfer_length);
355 debug("cbw: flags=%x\n", cbw->flags);
356 debug("cbw: lun=%d\n", cbw->lun);
357 debug("cbw: length=%d\n", cbw->length);
358 debug("cbw: ucOperCode=%x\n", cbw->CDB[0]);
359 debug("cbw: ucReserved=%x\n", cbw->CDB[1]);
360 debug("cbw: dwAddress:%x %x %x %x\n", cbw->CDB[5], cbw->CDB[4],
361 cbw->CDB[3], cbw->CDB[2]);
362 debug("cbw: ucReserved2=%x\n", cbw->CDB[6]);
363 debug("cbw: uslength:%x %x\n", cbw->CDB[8], cbw->CDB[7]);
364 }
365
printcsw(char * buf)366 static void printcsw(char *buf)
367 {
368 ALLOC_CACHE_ALIGN_BUFFER(struct bulk_cs_wrap, csw,
369 sizeof(struct bulk_cs_wrap));
370 memcpy((char *)csw, buf, USB_BULK_CS_WRAP_LEN);
371 debug("csw: signature:%x\n", csw->signature);
372 debug("csw: tag:%x\n", csw->tag);
373 debug("csw: residue:%x\n", csw->residue);
374 debug("csw: status:%x\n", csw->status);
375 }
376 #endif
377
rockusb_tx_write_csw(u32 tag,int residue,u8 status,int size)378 static int rockusb_tx_write_csw(u32 tag, int residue, u8 status, int size)
379 {
380 ALLOC_CACHE_ALIGN_BUFFER(struct bulk_cs_wrap, csw,
381 sizeof(struct bulk_cs_wrap));
382 csw->signature = cpu_to_le32(USB_BULK_CS_SIG);
383 csw->tag = tag;
384 csw->residue = cpu_to_be32(residue);
385 csw->status = status;
386 #ifdef DEBUG
387 printcsw((char *)csw);
388 #endif
389 return rockusb_tx_write((char *)csw, size);
390 }
391
tx_handler_send_csw(struct usb_ep * ep,struct usb_request * req)392 static void tx_handler_send_csw(struct usb_ep *ep, struct usb_request *req)
393 {
394 struct f_rockusb *f_rkusb = get_rkusb();
395 int status = req->status;
396
397 if (status)
398 debug("status: %d ep '%s' trans: %d\n",
399 status, ep->name, req->actual);
400
401 /* Return back to default in_req complete function after sending CSW */
402 req->complete = rockusb_complete;
403 rockusb_tx_write_csw(f_rkusb->tag, 0, CSW_GOOD, USB_BULK_CS_WRAP_LEN);
404 }
405
rx_bytes_expected(struct usb_ep * ep)406 static unsigned int rx_bytes_expected(struct usb_ep *ep)
407 {
408 struct f_rockusb *f_rkusb = get_rkusb();
409 int rx_remain = f_rkusb->dl_size - f_rkusb->dl_bytes;
410 unsigned int rem;
411 unsigned int maxpacket = ep->maxpacket;
412
413 if (rx_remain <= 0)
414 return 0;
415 else if (rx_remain > EP_BUFFER_SIZE)
416 return EP_BUFFER_SIZE;
417
418 rem = rx_remain % maxpacket;
419 if (rem > 0)
420 rx_remain = rx_remain + (maxpacket - rem);
421
422 return rx_remain;
423 }
424
425 /* usb_request complete call back to handle upload image */
tx_handler_ul_image(struct usb_ep * ep,struct usb_request * req)426 static void tx_handler_ul_image(struct usb_ep *ep, struct usb_request *req)
427 {
428 ALLOC_CACHE_ALIGN_BUFFER(char, rbuffer, RKBLOCK_BUF_SIZE);
429 struct f_rockusb *f_rkusb = get_rkusb();
430 struct usb_request *in_req = rockusb_func->in_req;
431 int ret;
432
433 /* Print error status of previous transfer */
434 if (req->status)
435 debug("status: %d ep '%s' trans: %d len %d\n", req->status,
436 ep->name, req->actual, req->length);
437
438 /* On transfer complete reset in_req and feedback host with CSW_GOOD */
439 if (f_rkusb->ul_bytes >= f_rkusb->ul_size) {
440 in_req->length = 0;
441 in_req->complete = rockusb_complete;
442
443 rockusb_tx_write_csw(f_rkusb->tag, 0, CSW_GOOD,
444 USB_BULK_CS_WRAP_LEN);
445 return;
446 }
447
448 /* Proceed with current chunk */
449 unsigned int transfer_size = f_rkusb->ul_size - f_rkusb->ul_bytes;
450
451 if (transfer_size > RKBLOCK_BUF_SIZE)
452 transfer_size = RKBLOCK_BUF_SIZE;
453 /* Read at least one block */
454 unsigned int blkcount = (transfer_size + f_rkusb->desc->blksz - 1) /
455 f_rkusb->desc->blksz;
456
457 debug("ul %x bytes, %x blks, read lba %x, ul_size:%x, ul_bytes:%x, ",
458 transfer_size, blkcount, f_rkusb->lba,
459 f_rkusb->ul_size, f_rkusb->ul_bytes);
460
461 int blks = blk_dread(f_rkusb->desc, f_rkusb->lba, blkcount, rbuffer);
462
463 if (blks != blkcount) {
464 printf("failed reading from device %s: %d\n",
465 f_rkusb->dev_type, f_rkusb->dev_index);
466 rockusb_tx_write_csw(f_rkusb->tag, 0, CSW_FAIL,
467 USB_BULK_CS_WRAP_LEN);
468 return;
469 }
470 f_rkusb->lba += blkcount;
471 f_rkusb->ul_bytes += transfer_size;
472
473 /* Proceed with USB request */
474 memcpy(in_req->buf, rbuffer, transfer_size);
475 in_req->length = transfer_size;
476 in_req->complete = tx_handler_ul_image;
477 debug("Uploading 0x%x bytes\n", transfer_size);
478 usb_ep_dequeue(rockusb_func->in_ep, in_req);
479 ret = usb_ep_queue(rockusb_func->in_ep, in_req, 0);
480 if (ret)
481 printf("Error %d on queue\n", ret);
482 }
483
484 /* usb_request complete call back to handle down load image */
rx_handler_dl_image(struct usb_ep * ep,struct usb_request * req)485 static void rx_handler_dl_image(struct usb_ep *ep, struct usb_request *req)
486 {
487 struct f_rockusb *f_rkusb = get_rkusb();
488 unsigned int transfer_size = 0;
489 const unsigned char *buffer = req->buf;
490 unsigned int buffer_size = req->actual;
491
492 transfer_size = f_rkusb->dl_size - f_rkusb->dl_bytes;
493
494 if (req->status != 0) {
495 printf("Bad status: %d\n", req->status);
496 rockusb_tx_write_csw(f_rkusb->tag, 0, CSW_FAIL,
497 USB_BULK_CS_WRAP_LEN);
498 return;
499 }
500
501 if (buffer_size < transfer_size)
502 transfer_size = buffer_size;
503
504 memcpy((void *)f_rkusb->buf, buffer, transfer_size);
505 f_rkusb->dl_bytes += transfer_size;
506 int blks = 0, blkcnt = transfer_size / f_rkusb->desc->blksz;
507
508 debug("dl %x bytes, %x blks, write lba %x, dl_size:%x, dl_bytes:%x, ",
509 transfer_size, blkcnt, f_rkusb->lba, f_rkusb->dl_size,
510 f_rkusb->dl_bytes);
511 blks = blk_dwrite(f_rkusb->desc, f_rkusb->lba, blkcnt, f_rkusb->buf);
512 if (blks != blkcnt) {
513 printf("failed writing to device %s: %d\n", f_rkusb->dev_type,
514 f_rkusb->dev_index);
515 rockusb_tx_write_csw(f_rkusb->tag, 0, CSW_FAIL,
516 USB_BULK_CS_WRAP_LEN);
517 return;
518 }
519 f_rkusb->lba += blkcnt;
520
521 /* Check if transfer is done */
522 if (f_rkusb->dl_bytes >= f_rkusb->dl_size) {
523 req->complete = rx_handler_command;
524 req->length = EP_BUFFER_SIZE;
525 f_rkusb->buf = f_rkusb->buf_head;
526 debug("transfer 0x%x bytes done\n", f_rkusb->dl_size);
527 f_rkusb->dl_size = 0;
528 rockusb_tx_write_csw(f_rkusb->tag, 0, CSW_GOOD,
529 USB_BULK_CS_WRAP_LEN);
530 } else {
531 req->length = rx_bytes_expected(ep);
532 if (f_rkusb->buf == f_rkusb->buf_head)
533 f_rkusb->buf = f_rkusb->buf_head + EP_BUFFER_SIZE;
534 else
535 f_rkusb->buf = f_rkusb->buf_head;
536
537 debug("remain %x bytes, %lx sectors\n", req->length,
538 req->length / f_rkusb->desc->blksz);
539 }
540
541 req->actual = 0;
542 usb_ep_queue(ep, req, 0);
543 }
544
cb_test_unit_ready(struct usb_ep * ep,struct usb_request * req)545 static void cb_test_unit_ready(struct usb_ep *ep, struct usb_request *req)
546 {
547 ALLOC_CACHE_ALIGN_BUFFER(struct fsg_bulk_cb_wrap, cbw,
548 sizeof(struct fsg_bulk_cb_wrap));
549
550 memcpy((char *)cbw, req->buf, USB_BULK_CB_WRAP_LEN);
551
552 rockusb_tx_write_csw(cbw->tag, cbw->data_transfer_length,
553 CSW_GOOD, USB_BULK_CS_WRAP_LEN);
554 }
555
cb_read_storage_id(struct usb_ep * ep,struct usb_request * req)556 static void cb_read_storage_id(struct usb_ep *ep, struct usb_request *req)
557 {
558 ALLOC_CACHE_ALIGN_BUFFER(struct fsg_bulk_cb_wrap, cbw,
559 sizeof(struct fsg_bulk_cb_wrap));
560 struct f_rockusb *f_rkusb = get_rkusb();
561 char emmc_id[] = "EMMC ";
562
563 printf("read storage id\n");
564 memcpy((char *)cbw, req->buf, USB_BULK_CB_WRAP_LEN);
565
566 /* Prepare for sending subsequent CSW_GOOD */
567 f_rkusb->tag = cbw->tag;
568 f_rkusb->in_req->complete = tx_handler_send_csw;
569
570 rockusb_tx_write_str(emmc_id);
571 }
572
rk_get_bootrom_chip_version(unsigned int * chip_info,int size)573 int __weak rk_get_bootrom_chip_version(unsigned int *chip_info, int size)
574 {
575 return 0;
576 }
577
cb_get_chip_version(struct usb_ep * ep,struct usb_request * req)578 static void cb_get_chip_version(struct usb_ep *ep, struct usb_request *req)
579 {
580 ALLOC_CACHE_ALIGN_BUFFER(struct fsg_bulk_cb_wrap, cbw,
581 sizeof(struct fsg_bulk_cb_wrap));
582 struct f_rockusb *f_rkusb = get_rkusb();
583 unsigned int chip_info[4], i;
584
585 memset(chip_info, 0, sizeof(chip_info));
586 rk_get_bootrom_chip_version(chip_info, 4);
587
588 /*
589 * Chip Version is a string saved in BOOTROM address space Little Endian
590 *
591 * Ex for rk3288: 0x33323041 0x32303134 0x30383133 0x56323030
592 * which brings: 320A20140813V200
593 *
594 * Note that memory version do invert MSB/LSB so printing the char
595 * buffer will show: A02341023180002V
596 */
597 printf("read chip version: ");
598 for (i = 0; i < 4; i++) {
599 printf("%c%c%c%c",
600 (chip_info[i] >> 24) & 0xFF,
601 (chip_info[i] >> 16) & 0xFF,
602 (chip_info[i] >> 8) & 0xFF,
603 (chip_info[i] >> 0) & 0xFF);
604 }
605 printf("\n");
606 memcpy((char *)cbw, req->buf, USB_BULK_CB_WRAP_LEN);
607
608 /* Prepare for sending subsequent CSW_GOOD */
609 f_rkusb->tag = cbw->tag;
610 f_rkusb->in_req->complete = tx_handler_send_csw;
611
612 rockusb_tx_write((char *)chip_info, sizeof(chip_info));
613 }
614
cb_read_lba(struct usb_ep * ep,struct usb_request * req)615 static void cb_read_lba(struct usb_ep *ep, struct usb_request *req)
616 {
617 ALLOC_CACHE_ALIGN_BUFFER(struct fsg_bulk_cb_wrap, cbw,
618 sizeof(struct fsg_bulk_cb_wrap));
619 struct f_rockusb *f_rkusb = get_rkusb();
620 int sector_count;
621
622 memcpy((char *)cbw, req->buf, USB_BULK_CB_WRAP_LEN);
623 sector_count = (int)get_unaligned_be16(&cbw->CDB[7]);
624 f_rkusb->tag = cbw->tag;
625
626 if (!f_rkusb->desc) {
627 char *type = f_rkusb->dev_type;
628 int index = f_rkusb->dev_index;
629
630 f_rkusb->desc = blk_get_dev(type, index);
631 if (!f_rkusb->desc ||
632 f_rkusb->desc->type == DEV_TYPE_UNKNOWN) {
633 printf("invalid device \"%s\", %d\n", type, index);
634 rockusb_tx_write_csw(f_rkusb->tag, 0, CSW_FAIL,
635 USB_BULK_CS_WRAP_LEN);
636 return;
637 }
638 }
639
640 f_rkusb->lba = get_unaligned_be32(&cbw->CDB[2]);
641 f_rkusb->ul_size = sector_count * f_rkusb->desc->blksz;
642 f_rkusb->ul_bytes = 0;
643
644 debug("require read %x bytes, %x sectors from lba %x\n",
645 f_rkusb->ul_size, sector_count, f_rkusb->lba);
646
647 if (f_rkusb->ul_size == 0) {
648 rockusb_tx_write_csw(cbw->tag, cbw->data_transfer_length,
649 CSW_FAIL, USB_BULK_CS_WRAP_LEN);
650 return;
651 }
652
653 /* Start right now sending first chunk */
654 tx_handler_ul_image(ep, req);
655 }
656
cb_write_lba(struct usb_ep * ep,struct usb_request * req)657 static void cb_write_lba(struct usb_ep *ep, struct usb_request *req)
658 {
659 ALLOC_CACHE_ALIGN_BUFFER(struct fsg_bulk_cb_wrap, cbw,
660 sizeof(struct fsg_bulk_cb_wrap));
661 struct f_rockusb *f_rkusb = get_rkusb();
662 int sector_count;
663
664 memcpy((char *)cbw, req->buf, USB_BULK_CB_WRAP_LEN);
665 sector_count = (int)get_unaligned_be16(&cbw->CDB[7]);
666 f_rkusb->tag = cbw->tag;
667
668 if (!f_rkusb->desc) {
669 char *type = f_rkusb->dev_type;
670 int index = f_rkusb->dev_index;
671
672 f_rkusb->desc = blk_get_dev(type, index);
673 if (!f_rkusb->desc ||
674 f_rkusb->desc->type == DEV_TYPE_UNKNOWN) {
675 printf("invalid device \"%s\", %d\n", type, index);
676 rockusb_tx_write_csw(f_rkusb->tag, 0, CSW_FAIL,
677 USB_BULK_CS_WRAP_LEN);
678 return;
679 }
680 }
681
682 f_rkusb->lba = get_unaligned_be32(&cbw->CDB[2]);
683 f_rkusb->dl_size = sector_count * f_rkusb->desc->blksz;
684 f_rkusb->dl_bytes = 0;
685
686 debug("require write %x bytes, %x sectors to lba %x\n",
687 f_rkusb->dl_size, sector_count, f_rkusb->lba);
688
689 if (f_rkusb->dl_size == 0) {
690 rockusb_tx_write_csw(cbw->tag, cbw->data_transfer_length,
691 CSW_FAIL, USB_BULK_CS_WRAP_LEN);
692 } else {
693 req->complete = rx_handler_dl_image;
694 req->length = rx_bytes_expected(ep);
695 }
696 }
697
cb_erase_lba(struct usb_ep * ep,struct usb_request * req)698 static void cb_erase_lba(struct usb_ep *ep, struct usb_request *req)
699 {
700 ALLOC_CACHE_ALIGN_BUFFER(struct fsg_bulk_cb_wrap, cbw,
701 sizeof(struct fsg_bulk_cb_wrap));
702 struct f_rockusb *f_rkusb = get_rkusb();
703 int sector_count, lba, blks;
704
705 memcpy((char *)cbw, req->buf, USB_BULK_CB_WRAP_LEN);
706 sector_count = (int)get_unaligned_be16(&cbw->CDB[7]);
707 f_rkusb->tag = cbw->tag;
708
709 if (!f_rkusb->desc) {
710 char *type = f_rkusb->dev_type;
711 int index = f_rkusb->dev_index;
712
713 f_rkusb->desc = blk_get_dev(type, index);
714 if (!f_rkusb->desc ||
715 f_rkusb->desc->type == DEV_TYPE_UNKNOWN) {
716 printf("invalid device \"%s\", %d\n", type, index);
717 rockusb_tx_write_csw(f_rkusb->tag, 0, CSW_FAIL,
718 USB_BULK_CS_WRAP_LEN);
719 return;
720 }
721 }
722
723 lba = get_unaligned_be32(&cbw->CDB[2]);
724
725 debug("require erase %x sectors from lba %x\n",
726 sector_count, lba);
727
728 blks = blk_derase(f_rkusb->desc, lba, sector_count);
729 if (blks != sector_count) {
730 printf("failed erasing device %s: %d\n", f_rkusb->dev_type,
731 f_rkusb->dev_index);
732 rockusb_tx_write_csw(f_rkusb->tag,
733 cbw->data_transfer_length, CSW_FAIL,
734 USB_BULK_CS_WRAP_LEN);
735 return;
736 }
737
738 rockusb_tx_write_csw(cbw->tag, cbw->data_transfer_length, CSW_GOOD,
739 USB_BULK_CS_WRAP_LEN);
740 }
741
rkusb_set_reboot_flag(int flag)742 void __weak rkusb_set_reboot_flag(int flag)
743 {
744 struct f_rockusb *f_rkusb = get_rkusb();
745
746 printf("rockkusb set reboot flag: %d\n", f_rkusb->reboot_flag);
747 }
748
compl_do_reset(struct usb_ep * ep,struct usb_request * req)749 static void compl_do_reset(struct usb_ep *ep, struct usb_request *req)
750 {
751 struct f_rockusb *f_rkusb = get_rkusb();
752
753 rkusb_set_reboot_flag(f_rkusb->reboot_flag);
754 do_reset(NULL, 0, 0, NULL);
755 }
756
cb_reboot(struct usb_ep * ep,struct usb_request * req)757 static void cb_reboot(struct usb_ep *ep, struct usb_request *req)
758 {
759 ALLOC_CACHE_ALIGN_BUFFER(struct fsg_bulk_cb_wrap, cbw,
760 sizeof(struct fsg_bulk_cb_wrap));
761 struct f_rockusb *f_rkusb = get_rkusb();
762
763 memcpy((char *)cbw, req->buf, USB_BULK_CB_WRAP_LEN);
764 f_rkusb->reboot_flag = cbw->CDB[1];
765 rockusb_func->in_req->complete = compl_do_reset;
766 rockusb_tx_write_csw(cbw->tag, cbw->data_transfer_length, CSW_GOOD,
767 USB_BULK_CS_WRAP_LEN);
768 }
769
cb_not_support(struct usb_ep * ep,struct usb_request * req)770 static void cb_not_support(struct usb_ep *ep, struct usb_request *req)
771 {
772 ALLOC_CACHE_ALIGN_BUFFER(struct fsg_bulk_cb_wrap, cbw,
773 sizeof(struct fsg_bulk_cb_wrap));
774
775 memcpy((char *)cbw, req->buf, USB_BULK_CB_WRAP_LEN);
776 printf("Rockusb command %x not support yet\n", cbw->CDB[0]);
777 rockusb_tx_write_csw(cbw->tag, 0, CSW_FAIL, USB_BULK_CS_WRAP_LEN);
778 }
779
780 static const struct cmd_dispatch_info cmd_dispatch_info[] = {
781 {
782 .cmd = K_FW_TEST_UNIT_READY,
783 .cb = cb_test_unit_ready,
784 },
785 {
786 .cmd = K_FW_READ_FLASH_ID,
787 .cb = cb_read_storage_id,
788 },
789 {
790 .cmd = K_FW_SET_DEVICE_ID,
791 .cb = cb_not_support,
792 },
793 {
794 .cmd = K_FW_TEST_BAD_BLOCK,
795 .cb = cb_not_support,
796 },
797 {
798 .cmd = K_FW_READ_10,
799 .cb = cb_not_support,
800 },
801 {
802 .cmd = K_FW_WRITE_10,
803 .cb = cb_not_support,
804 },
805 {
806 .cmd = K_FW_ERASE_10,
807 .cb = cb_not_support,
808 },
809 {
810 .cmd = K_FW_WRITE_SPARE,
811 .cb = cb_not_support,
812 },
813 {
814 .cmd = K_FW_READ_SPARE,
815 .cb = cb_not_support,
816 },
817 {
818 .cmd = K_FW_ERASE_10_FORCE,
819 .cb = cb_not_support,
820 },
821 {
822 .cmd = K_FW_GET_VERSION,
823 .cb = cb_not_support,
824 },
825 {
826 .cmd = K_FW_LBA_READ_10,
827 .cb = cb_read_lba,
828 },
829 {
830 .cmd = K_FW_LBA_WRITE_10,
831 .cb = cb_write_lba,
832 },
833 {
834 .cmd = K_FW_ERASE_SYS_DISK,
835 .cb = cb_not_support,
836 },
837 {
838 .cmd = K_FW_SDRAM_READ_10,
839 .cb = cb_not_support,
840 },
841 {
842 .cmd = K_FW_SDRAM_WRITE_10,
843 .cb = cb_not_support,
844 },
845 {
846 .cmd = K_FW_SDRAM_EXECUTE,
847 .cb = cb_not_support,
848 },
849 {
850 .cmd = K_FW_READ_FLASH_INFO,
851 .cb = cb_not_support,
852 },
853 {
854 .cmd = K_FW_GET_CHIP_VER,
855 .cb = cb_get_chip_version,
856 },
857 {
858 .cmd = K_FW_LOW_FORMAT,
859 .cb = cb_not_support,
860 },
861 {
862 .cmd = K_FW_SET_RESET_FLAG,
863 .cb = cb_not_support,
864 },
865 {
866 .cmd = K_FW_SPI_READ_10,
867 .cb = cb_not_support,
868 },
869 {
870 .cmd = K_FW_SPI_WRITE_10,
871 .cb = cb_not_support,
872 },
873 {
874 .cmd = K_FW_LBA_ERASE_10,
875 .cb = cb_erase_lba,
876 },
877 {
878 .cmd = K_FW_SESSION,
879 .cb = cb_not_support,
880 },
881 {
882 .cmd = K_FW_RESET,
883 .cb = cb_reboot,
884 },
885 };
886
rx_handler_command(struct usb_ep * ep,struct usb_request * req)887 static void rx_handler_command(struct usb_ep *ep, struct usb_request *req)
888 {
889 void (*func_cb)(struct usb_ep *ep, struct usb_request *req) = NULL;
890
891 ALLOC_CACHE_ALIGN_BUFFER(struct fsg_bulk_cb_wrap, cbw,
892 sizeof(struct fsg_bulk_cb_wrap));
893 char *cmdbuf = req->buf;
894 int i;
895
896 if (req->status || req->length == 0)
897 return;
898
899 memcpy((char *)cbw, req->buf, USB_BULK_CB_WRAP_LEN);
900 #ifdef DEBUG
901 printcbw(req->buf);
902 #endif
903
904 for (i = 0; i < ARRAY_SIZE(cmd_dispatch_info); i++) {
905 if (cmd_dispatch_info[i].cmd == cbw->CDB[0]) {
906 func_cb = cmd_dispatch_info[i].cb;
907 break;
908 }
909 }
910
911 if (!func_cb) {
912 printf("unknown command: %s\n", (char *)req->buf);
913 rockusb_tx_write_str("FAILunknown command");
914 } else {
915 if (req->actual < req->length) {
916 u8 *buf = (u8 *)req->buf;
917
918 buf[req->actual] = 0;
919 func_cb(ep, req);
920 } else {
921 puts("buffer overflow\n");
922 rockusb_tx_write_str("FAILbuffer overflow");
923 }
924 }
925
926 *cmdbuf = '\0';
927 req->actual = 0;
928 usb_ep_queue(ep, req, 0);
929 }
930