2 * f_thor.c -- USB TIZEN THOR Downloader gadget function
4 * Copyright (C) 2013 Samsung Electronics
5 * Lukasz Majewski <l.majewski@samsung.com>
8 * git://review.tizen.org/kernel/u-boot
11 * Copyright (C) 2009 Samsung Electronics
12 * Minkyu Kang <mk7.kang@samsung.com>
13 * Sanghee Kim <sh0130.kim@samsung.com>
15 * SPDX-License-Identifier: GPL-2.0+
23 #include <linux/usb/ch9.h>
24 #include <linux/usb/gadget.h>
25 #include <linux/usb/composite.h>
26 #include <linux/usb/cdc.h>
32 static void thor_tx_data(unsigned char *data, int len);
33 static void thor_set_dma(void *addr, int len);
34 static int thor_rx_data(void);
36 static struct f_thor *thor_func;
37 static inline struct f_thor *func_to_thor(struct usb_function *f)
39 return container_of(f, struct f_thor, usb_function);
42 DEFINE_CACHE_ALIGN_BUFFER(unsigned char, thor_tx_data_buf,
43 sizeof(struct rsp_box));
44 DEFINE_CACHE_ALIGN_BUFFER(unsigned char, thor_rx_data_buf,
45 sizeof(struct rqt_box));
47 /* ********************************************************** */
48 /* THOR protocol - transmission handling */
49 /* ********************************************************** */
50 DEFINE_CACHE_ALIGN_BUFFER(char, f_name, F_NAME_BUF_SIZE);
51 static unsigned long long int thor_file_size;
52 static int alt_setting_num;
54 static void send_rsp(const struct rsp_box *rsp)
56 memcpy(thor_tx_data_buf, rsp, sizeof(struct rsp_box));
57 thor_tx_data(thor_tx_data_buf, sizeof(struct rsp_box));
59 debug("-RSP: %d, %d\n", rsp->rsp, rsp->rsp_data);
62 static void send_data_rsp(s32 ack, s32 count)
64 ALLOC_CACHE_ALIGN_BUFFER(struct data_rsp_box, rsp,
65 sizeof(struct data_rsp_box));
70 memcpy(thor_tx_data_buf, rsp, sizeof(struct data_rsp_box));
71 thor_tx_data(thor_tx_data_buf, sizeof(struct data_rsp_box));
73 debug("-DATA RSP: %d, %d\n", ack, count);
76 static int process_rqt_info(const struct rqt_box *rqt)
78 ALLOC_CACHE_ALIGN_BUFFER(struct rsp_box, rsp, sizeof(struct rsp_box));
79 memset(rsp, 0, sizeof(struct rsp_box));
82 rsp->rsp_data = rqt->rqt_data;
84 switch (rqt->rqt_data) {
85 case RQT_INFO_VER_PROTOCOL:
86 rsp->int_data[0] = VER_PROTOCOL_MAJOR;
87 rsp->int_data[1] = VER_PROTOCOL_MINOR;
90 snprintf(rsp->str_data[0], sizeof(rsp->str_data[0]),
93 case RQT_INIT_VER_BOOT:
94 sprintf(rsp->str_data[0], "%s", U_BOOT_VERSION);
96 case RQT_INIT_VER_KERNEL:
97 sprintf(rsp->str_data[0], "%s", "k unknown");
99 case RQT_INIT_VER_PLATFORM:
100 sprintf(rsp->str_data[0], "%s", "p unknown");
102 case RQT_INIT_VER_CSC:
103 sprintf(rsp->str_data[0], "%s", "c unknown");
113 static int process_rqt_cmd(const struct rqt_box *rqt)
115 ALLOC_CACHE_ALIGN_BUFFER(struct rsp_box, rsp, sizeof(struct rsp_box));
116 memset(rsp, 0, sizeof(struct rsp_box));
119 rsp->rsp_data = rqt->rqt_data;
121 switch (rqt->rqt_data) {
123 debug("TARGET RESET\n");
127 #ifdef CONFIG_THOR_RESET_OFF
130 run_command("reset", 0);
132 case RQT_CMD_POWEROFF:
133 case RQT_CMD_EFSCLEAR:
136 printf("Command not supported -> cmd: %d\n", rqt->rqt_data);
143 static long long int download_head(unsigned long long total,
144 unsigned int packet_size,
148 long long int rcv_cnt = 0, left_to_rcv, ret_rcv;
149 struct dfu_entity *dfu_entity = dfu_get_entity(alt_setting_num);
150 void *transfer_buffer = dfu_get_buf(dfu_entity);
151 void *buf = transfer_buffer;
152 int usb_pkt_cnt = 0, ret;
155 * Files smaller than THOR_STORE_UNIT_SIZE (now 32 MiB) are stored on
157 * The packet response is sent on the purpose after successful data
158 * chunk write. There is a room for improvement when asynchronous write
161 while (total - rcv_cnt >= packet_size) {
162 thor_set_dma(buf, packet_size);
164 ret_rcv = thor_rx_data();
168 debug("%d: RCV data count: %llu cnt: %d\n", usb_pkt_cnt,
171 if ((rcv_cnt % THOR_STORE_UNIT_SIZE) == 0) {
172 ret = dfu_write(dfu_get_entity(alt_setting_num),
173 transfer_buffer, THOR_STORE_UNIT_SIZE,
176 error("DFU write failed [%d] cnt: %d",
180 buf = transfer_buffer;
182 send_data_rsp(0, ++usb_pkt_cnt);
185 /* Calculate the amount of data to arrive from PC (in bytes) */
186 left_to_rcv = total - rcv_cnt;
189 * Calculate number of data already received. but not yet stored
190 * on the medium (they are smaller than THOR_STORE_UNIT_SIZE)
192 *left = left_to_rcv + buf - transfer_buffer;
193 debug("%s: left: %llu left_to_rcv: %llu buf: 0x%p\n", __func__,
194 *left, left_to_rcv, buf);
197 thor_set_dma(buf, packet_size);
198 ret_rcv = thor_rx_data();
202 send_data_rsp(0, ++usb_pkt_cnt);
205 debug("%s: %llu total: %llu cnt: %d\n", __func__, rcv_cnt, total, *cnt);
210 static int download_tail(long long int left, int cnt)
212 struct dfu_entity *dfu_entity;
213 void *transfer_buffer;
216 debug("%s: left: %llu cnt: %d\n", __func__, left, cnt);
218 dfu_entity = dfu_get_entity(alt_setting_num);
220 error("Alt setting: %d entity not found!\n", alt_setting_num);
224 transfer_buffer = dfu_get_buf(dfu_entity);
225 if (!transfer_buffer) {
226 error("Transfer buffer not allocated!");
231 ret = dfu_write(dfu_entity, transfer_buffer, left, cnt++);
233 error("DFU write failed [%d]: left: %llu", ret, left);
239 * To store last "packet" or write file from buffer to filesystem
240 * DFU storage backend requires dfu_flush
242 * This also frees memory malloc'ed by dfu_get_buf(), so no explicit
243 * need fo call dfu_free_buf() is needed.
245 ret = dfu_flush(dfu_entity, transfer_buffer, 0, cnt);
247 error("DFU flush failed!");
252 static long long int process_rqt_download(const struct rqt_box *rqt)
254 ALLOC_CACHE_ALIGN_BUFFER(struct rsp_box, rsp, sizeof(struct rsp_box));
255 static long long int left, ret_head;
256 int file_type, ret = 0;
259 memset(rsp, 0, sizeof(struct rsp_box));
261 rsp->rsp_data = rqt->rqt_data;
263 switch (rqt->rqt_data) {
265 thor_file_size = rqt->int_data[0];
266 debug("INIT: total %d bytes\n", rqt->int_data[0]);
268 case RQT_DL_FILE_INFO:
269 file_type = rqt->int_data[0];
270 if (file_type == FILE_TYPE_PIT) {
271 puts("PIT table file - not supported\n");
272 rsp->ack = -ENOTSUPP;
277 thor_file_size = rqt->int_data[1];
278 memcpy(f_name, rqt->str_data[0], F_NAME_BUF_SIZE);
280 debug("INFO: name(%s, %d), size(%llu), type(%d)\n",
281 f_name, 0, thor_file_size, file_type);
283 rsp->int_data[0] = THOR_PACKET_SIZE;
285 alt_setting_num = dfu_get_alt(f_name);
286 if (alt_setting_num < 0) {
287 error("Alt setting [%d] to write not found!",
293 case RQT_DL_FILE_START:
295 ret_head = download_head(thor_file_size, THOR_PACKET_SIZE,
302 case RQT_DL_FILE_END:
303 debug("DL FILE_END\n");
304 rsp->ack = download_tail(left, cnt);
313 error("Operation not supported: %d", rqt->rqt_data);
321 static int process_data(void)
323 ALLOC_CACHE_ALIGN_BUFFER(struct rqt_box, rqt, sizeof(struct rqt_box));
326 memcpy(rqt, thor_rx_data_buf, sizeof(struct rqt_box));
328 debug("+RQT: %d, %d\n", rqt->rqt, rqt->rqt_data);
332 ret = process_rqt_info(rqt);
335 ret = process_rqt_cmd(rqt);
338 ret = (int) process_rqt_download(rqt);
341 puts("RQT: UPLOAD not supported!\n");
344 error("unknown request (%d)", rqt->rqt);
350 /* ********************************************************** */
351 /* THOR USB Function */
352 /* ********************************************************** */
354 static inline struct usb_endpoint_descriptor *
355 ep_desc(struct usb_gadget *g, struct usb_endpoint_descriptor *hs,
356 struct usb_endpoint_descriptor *fs)
358 if (gadget_is_dualspeed(g) && g->speed == USB_SPEED_HIGH)
363 static struct usb_interface_descriptor thor_downloader_intf_data = {
364 .bLength = sizeof(thor_downloader_intf_data),
365 .bDescriptorType = USB_DT_INTERFACE,
368 .bInterfaceClass = USB_CLASS_CDC_DATA,
371 static struct usb_endpoint_descriptor fs_in_desc = {
372 .bLength = USB_DT_ENDPOINT_SIZE,
373 .bDescriptorType = USB_DT_ENDPOINT,
375 .bEndpointAddress = USB_DIR_IN,
376 .bmAttributes = USB_ENDPOINT_XFER_BULK,
379 static struct usb_endpoint_descriptor fs_out_desc = {
380 .bLength = USB_DT_ENDPOINT_SIZE,
381 .bDescriptorType = USB_DT_ENDPOINT,
383 .bEndpointAddress = USB_DIR_OUT,
384 .bmAttributes = USB_ENDPOINT_XFER_BULK,
387 /* CDC configuration */
388 static struct usb_interface_descriptor thor_downloader_intf_int = {
389 .bLength = sizeof(thor_downloader_intf_int),
390 .bDescriptorType = USB_DT_INTERFACE,
393 .bInterfaceClass = USB_CLASS_COMM,
394 /* 0x02 Abstract Line Control Model */
395 .bInterfaceSubClass = USB_CDC_SUBCLASS_ACM,
396 /* 0x01 Common AT commands */
397 .bInterfaceProtocol = USB_CDC_ACM_PROTO_AT_V25TER,
400 static struct usb_cdc_header_desc thor_downloader_cdc_header = {
401 .bLength = sizeof(thor_downloader_cdc_header),
402 .bDescriptorType = 0x24, /* CS_INTERFACE */
403 .bDescriptorSubType = 0x00,
407 static struct usb_cdc_call_mgmt_descriptor thor_downloader_cdc_call = {
408 .bLength = sizeof(thor_downloader_cdc_call),
409 .bDescriptorType = 0x24, /* CS_INTERFACE */
410 .bDescriptorSubType = 0x01,
411 .bmCapabilities = 0x00,
412 .bDataInterface = 0x01,
415 static struct usb_cdc_acm_descriptor thor_downloader_cdc_abstract = {
416 .bLength = sizeof(thor_downloader_cdc_abstract),
417 .bDescriptorType = 0x24, /* CS_INTERFACE */
418 .bDescriptorSubType = 0x02,
419 .bmCapabilities = 0x00,
422 static struct usb_cdc_union_desc thor_downloader_cdc_union = {
423 .bLength = sizeof(thor_downloader_cdc_union),
424 .bDescriptorType = 0x24, /* CS_INTERFACE */
425 .bDescriptorSubType = USB_CDC_UNION_TYPE,
428 static struct usb_endpoint_descriptor fs_int_desc = {
429 .bLength = USB_DT_ENDPOINT_SIZE,
430 .bDescriptorType = USB_DT_ENDPOINT,
432 .bEndpointAddress = 3 | USB_DIR_IN,
433 .bmAttributes = USB_ENDPOINT_XFER_INT,
434 .wMaxPacketSize = __constant_cpu_to_le16(16),
439 static struct usb_interface_assoc_descriptor
440 thor_iad_descriptor = {
441 .bLength = sizeof(thor_iad_descriptor),
442 .bDescriptorType = USB_DT_INTERFACE_ASSOCIATION,
444 .bFirstInterface = 0,
445 .bInterfaceCount = 2, /* control + data */
446 .bFunctionClass = USB_CLASS_COMM,
447 .bFunctionSubClass = USB_CDC_SUBCLASS_ACM,
448 .bFunctionProtocol = USB_CDC_PROTO_NONE,
451 static struct usb_endpoint_descriptor hs_in_desc = {
452 .bLength = USB_DT_ENDPOINT_SIZE,
453 .bDescriptorType = USB_DT_ENDPOINT,
455 .bmAttributes = USB_ENDPOINT_XFER_BULK,
456 .wMaxPacketSize = __constant_cpu_to_le16(512),
459 static struct usb_endpoint_descriptor hs_out_desc = {
460 .bLength = USB_DT_ENDPOINT_SIZE,
461 .bDescriptorType = USB_DT_ENDPOINT,
463 .bmAttributes = USB_ENDPOINT_XFER_BULK,
464 .wMaxPacketSize = __constant_cpu_to_le16(512),
467 static struct usb_endpoint_descriptor hs_int_desc = {
468 .bLength = USB_DT_ENDPOINT_SIZE,
469 .bDescriptorType = USB_DT_ENDPOINT,
471 .bmAttributes = USB_ENDPOINT_XFER_INT,
472 .wMaxPacketSize = __constant_cpu_to_le16(16),
478 * This attribute vendor descriptor is necessary for correct operation with
479 * Windows version of THOR download program
481 * It prevents windows driver from sending zero lenght packet (ZLP) after
482 * each THOR_PACKET_SIZE. This assures consistent behaviour with libusb
484 static struct usb_cdc_attribute_vendor_descriptor thor_downloader_cdc_av = {
485 .bLength = sizeof(thor_downloader_cdc_av),
486 .bDescriptorType = 0x24,
487 .bDescriptorSubType = 0x80,
493 static const struct usb_descriptor_header *hs_thor_downloader_function[] = {
494 (struct usb_descriptor_header *)&thor_iad_descriptor,
496 (struct usb_descriptor_header *)&thor_downloader_intf_int,
497 (struct usb_descriptor_header *)&thor_downloader_cdc_header,
498 (struct usb_descriptor_header *)&thor_downloader_cdc_call,
499 (struct usb_descriptor_header *)&thor_downloader_cdc_abstract,
500 (struct usb_descriptor_header *)&thor_downloader_cdc_union,
501 (struct usb_descriptor_header *)&hs_int_desc,
503 (struct usb_descriptor_header *)&thor_downloader_intf_data,
504 (struct usb_descriptor_header *)&thor_downloader_cdc_av,
505 (struct usb_descriptor_header *)&hs_in_desc,
506 (struct usb_descriptor_header *)&hs_out_desc,
510 /*-------------------------------------------------------------------------*/
511 static struct usb_request *alloc_ep_req(struct usb_ep *ep, unsigned length)
513 struct usb_request *req;
515 req = usb_ep_alloc_request(ep, 0);
519 req->length = length;
520 req->buf = memalign(CONFIG_SYS_CACHELINE_SIZE, length);
522 usb_ep_free_request(ep, req);
529 static int thor_rx_data(void)
531 struct thor_dev *dev = thor_func->dev;
532 int data_to_rx, tmp, status;
534 data_to_rx = dev->out_req->length;
537 dev->out_req->length = data_to_rx;
538 debug("dev->out_req->length:%d dev->rxdata:%d\n",
539 dev->out_req->length, dev->rxdata);
541 status = usb_ep_queue(dev->out_ep, dev->out_req, 0);
543 error("kill %s: resubmit %d bytes --> %d",
544 dev->out_ep->name, dev->out_req->length, status);
545 usb_ep_set_halt(dev->out_ep);
549 while (!dev->rxdata) {
550 usb_gadget_handle_interrupts(0);
555 data_to_rx -= dev->out_req->actual;
556 } while (data_to_rx);
561 static void thor_tx_data(unsigned char *data, int len)
563 struct thor_dev *dev = thor_func->dev;
564 unsigned char *ptr = dev->in_req->buf;
568 memcpy(ptr, data, len);
570 dev->in_req->length = len;
572 debug("%s: dev->in_req->length:%d to_cpy:%zd\n", __func__,
573 dev->in_req->length, sizeof(data));
575 status = usb_ep_queue(dev->in_ep, dev->in_req, 0);
577 error("kill %s: resubmit %d bytes --> %d",
578 dev->in_ep->name, dev->in_req->length, status);
579 usb_ep_set_halt(dev->in_ep);
582 /* Wait until tx interrupt received */
584 usb_gadget_handle_interrupts(0);
589 static void thor_rx_tx_complete(struct usb_ep *ep, struct usb_request *req)
591 struct thor_dev *dev = thor_func->dev;
592 int status = req->status;
594 debug("%s: ep_ptr:%p, req_ptr:%p\n", __func__, ep, req);
597 if (ep == dev->out_ep)
604 /* this endpoint is normally active while we're configured */
605 case -ECONNABORTED: /* hardware forced ep reset */
606 case -ECONNRESET: /* request dequeued */
607 case -ESHUTDOWN: /* disconnect from host */
608 case -EREMOTEIO: /* short read */
610 error("ERROR:%d", status);
614 debug("%s complete --> %d, %d/%d\n", ep->name,
615 status, req->actual, req->length);
618 static struct usb_request *thor_start_ep(struct usb_ep *ep)
620 struct usb_request *req;
622 req = alloc_ep_req(ep, THOR_PACKET_SIZE);
623 debug("%s: ep:%p req:%p\n", __func__, ep, req);
628 memset(req->buf, 0, req->length);
629 req->complete = thor_rx_tx_complete;
634 static void thor_setup_complete(struct usb_ep *ep, struct usb_request *req)
636 if (req->status || req->actual != req->length)
637 debug("setup complete --> %d, %d/%d\n",
638 req->status, req->actual, req->length);
642 thor_func_setup(struct usb_function *f, const struct usb_ctrlrequest *ctrl)
644 struct thor_dev *dev = thor_func->dev;
645 struct usb_request *req = dev->req;
646 struct usb_gadget *gadget = dev->gadget;
649 u16 len = le16_to_cpu(ctrl->wLength);
651 debug("Req_Type: 0x%x Req: 0x%x wValue: 0x%x wIndex: 0x%x wLen: 0x%x\n",
652 ctrl->bRequestType, ctrl->bRequest, ctrl->wValue, ctrl->wIndex,
655 switch (ctrl->bRequest) {
656 case USB_CDC_REQ_SET_CONTROL_LINE_STATE:
659 case USB_CDC_REQ_SET_LINE_CODING:
661 /* Line Coding set done = configuration done */
662 thor_func->dev->configuration_done = 1;
666 error("thor_setup: unknown request: %d", ctrl->bRequest);
671 req->zero = value < len;
672 value = usb_ep_queue(gadget->ep0, req, 0);
674 debug("%s: ep_queue: %d\n", __func__, value);
682 /* Specific to the THOR protocol */
683 static void thor_set_dma(void *addr, int len)
685 struct thor_dev *dev = thor_func->dev;
687 debug("in_req:%p, out_req:%p\n", dev->in_req, dev->out_req);
688 debug("addr:%p, len:%d\n", addr, len);
690 dev->out_req->buf = addr;
691 dev->out_req->length = len;
696 struct thor_dev *dev = thor_func->dev;
698 /* Wait for a device enumeration and configuration settings */
699 debug("THOR enumeration/configuration setting....\n");
700 while (!dev->configuration_done)
701 usb_gadget_handle_interrupts(0);
703 thor_set_dma(thor_rx_data_buf, strlen("THOR"));
704 /* detect the download request from Host PC */
705 if (thor_rx_data() < 0) {
706 printf("%s: Data not received!\n", __func__);
710 if (!strncmp((char *)thor_rx_data_buf, "THOR", strlen("THOR"))) {
711 puts("Download request from the Host PC\n");
712 udelay(30 * 1000); /* 30 ms */
714 strcpy((char *)thor_tx_data_buf, "ROHT");
715 thor_tx_data(thor_tx_data_buf, strlen("ROHT"));
717 puts("Wrong reply information\n");
724 int thor_handle(void)
728 /* receive the data from Host PC */
730 thor_set_dma(thor_rx_data_buf, sizeof(struct rqt_box));
731 ret = thor_rx_data();
734 ret = process_data();
735 #ifdef CONFIG_THOR_RESET_OFF
736 if (ret == RESET_DONE)
742 printf("%s: No data received!\n", __func__);
750 static int thor_func_bind(struct usb_configuration *c, struct usb_function *f)
752 struct usb_gadget *gadget = c->cdev->gadget;
753 struct f_thor *f_thor = func_to_thor(f);
754 struct thor_dev *dev;
759 dev = memalign(CONFIG_SYS_CACHELINE_SIZE, sizeof(*dev));
763 memset(dev, 0, sizeof(*dev));
764 dev->gadget = gadget;
767 debug("%s: usb_configuration: 0x%p usb_function: 0x%p\n",
769 debug("f_thor: 0x%p thor: 0x%p\n", f_thor, dev);
772 /* preallocate control response and buffer */
773 dev->req = usb_ep_alloc_request(gadget->ep0, 0);
778 dev->req->buf = memalign(CONFIG_SYS_CACHELINE_SIZE,
780 if (!dev->req->buf) {
785 dev->req->complete = thor_setup_complete;
787 /* DYNAMIC interface numbers assignments */
788 status = usb_interface_id(c, f);
793 thor_downloader_intf_int.bInterfaceNumber = status;
794 thor_downloader_cdc_union.bMasterInterface0 = status;
796 status = usb_interface_id(c, f);
801 thor_downloader_intf_data.bInterfaceNumber = status;
802 thor_downloader_cdc_union.bSlaveInterface0 = status;
804 /* allocate instance-specific endpoints */
805 ep = usb_ep_autoconfig(gadget, &fs_in_desc);
811 if (gadget_is_dualspeed(gadget)) {
812 hs_in_desc.bEndpointAddress =
813 fs_in_desc.bEndpointAddress;
816 dev->in_ep = ep; /* Store IN EP for enabling @ setup */
817 ep->driver_data = dev;
819 ep = usb_ep_autoconfig(gadget, &fs_out_desc);
825 if (gadget_is_dualspeed(gadget))
826 hs_out_desc.bEndpointAddress =
827 fs_out_desc.bEndpointAddress;
829 dev->out_ep = ep; /* Store OUT EP for enabling @ setup */
830 ep->driver_data = dev;
832 ep = usb_ep_autoconfig(gadget, &fs_int_desc);
839 ep->driver_data = dev;
841 if (gadget_is_dualspeed(gadget)) {
842 hs_int_desc.bEndpointAddress =
843 fs_int_desc.bEndpointAddress;
845 f->hs_descriptors = (struct usb_descriptor_header **)
846 &hs_thor_downloader_function;
848 if (!f->hs_descriptors)
852 debug("%s: out_ep:%p out_req:%p\n", __func__,
853 dev->out_ep, dev->out_req);
862 static void free_ep_req(struct usb_ep *ep, struct usb_request *req)
865 usb_ep_free_request(ep, req);
868 static void thor_unbind(struct usb_configuration *c, struct usb_function *f)
870 struct f_thor *f_thor = func_to_thor(f);
871 struct thor_dev *dev = f_thor->dev;
874 memset(thor_func, 0, sizeof(*thor_func));
878 static void thor_func_disable(struct usb_function *f)
880 struct f_thor *f_thor = func_to_thor(f);
881 struct thor_dev *dev = f_thor->dev;
883 debug("%s:\n", __func__);
885 /* Avoid freeing memory when ep is still claimed */
886 if (dev->in_ep->driver_data) {
887 free_ep_req(dev->in_ep, dev->in_req);
888 usb_ep_disable(dev->in_ep);
889 dev->in_ep->driver_data = NULL;
892 if (dev->out_ep->driver_data) {
893 dev->out_req->buf = NULL;
894 usb_ep_free_request(dev->out_ep, dev->out_req);
895 usb_ep_disable(dev->out_ep);
896 dev->out_ep->driver_data = NULL;
899 if (dev->int_ep->driver_data) {
900 usb_ep_disable(dev->int_ep);
901 dev->int_ep->driver_data = NULL;
905 static int thor_eps_setup(struct usb_function *f)
907 struct usb_composite_dev *cdev = f->config->cdev;
908 struct usb_gadget *gadget = cdev->gadget;
909 struct thor_dev *dev = thor_func->dev;
910 struct usb_endpoint_descriptor *d;
911 struct usb_request *req;
916 d = ep_desc(gadget, &hs_in_desc, &fs_in_desc);
917 debug("(d)bEndpointAddress: 0x%x\n", d->bEndpointAddress);
919 result = usb_ep_enable(ep, d);
923 ep->driver_data = cdev; /* claim */
924 req = thor_start_ep(ep);
933 d = ep_desc(gadget, &hs_out_desc, &fs_out_desc);
934 debug("(d)bEndpointAddress: 0x%x\n", d->bEndpointAddress);
936 result = usb_ep_enable(ep, d);
940 ep->driver_data = cdev; /* claim */
941 req = thor_start_ep(ep);
951 ep->driver_data = cdev; /* claim */
957 static int thor_func_set_alt(struct usb_function *f,
958 unsigned intf, unsigned alt)
960 struct thor_dev *dev = thor_func->dev;
963 debug("%s: func: %s intf: %d alt: %d\n",
964 __func__, f->name, intf, alt);
968 debug("ACM INTR interface\n");
971 debug("Communication Data interface\n");
972 result = thor_eps_setup(f);
974 error("%s: EPs setup failed!", __func__);
975 dev->configuration_done = 1;
982 static int thor_func_init(struct usb_configuration *c)
984 struct f_thor *f_thor;
987 debug("%s: cdev: 0x%p\n", __func__, c->cdev);
989 f_thor = memalign(CONFIG_SYS_CACHELINE_SIZE, sizeof(*f_thor));
993 memset(f_thor, 0, sizeof(*f_thor));
995 f_thor->usb_function.name = "f_thor";
996 f_thor->usb_function.bind = thor_func_bind;
997 f_thor->usb_function.unbind = thor_unbind;
998 f_thor->usb_function.setup = thor_func_setup;
999 f_thor->usb_function.set_alt = thor_func_set_alt;
1000 f_thor->usb_function.disable = thor_func_disable;
1002 status = usb_add_function(c, &f_thor->usb_function);
1009 int thor_add(struct usb_configuration *c)
1011 debug("%s:\n", __func__);
1012 return thor_func_init(c);
1015 DECLARE_GADGET_BIND_CALLBACK(usb_dnl_thor, thor_add);