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+
22 #include <linux/usb/ch9.h>
23 #include <linux/usb/gadget.h>
24 #include <linux/usb/composite.h>
25 #include <linux/usb/cdc.h>
31 static void thor_tx_data(unsigned char *data, int len);
32 static void thor_set_dma(void *addr, int len);
33 static int thor_rx_data(void);
35 static struct f_thor *thor_func;
36 static inline struct f_thor *func_to_thor(struct usb_function *f)
38 return container_of(f, struct f_thor, usb_function);
41 DEFINE_CACHE_ALIGN_BUFFER(unsigned char, thor_tx_data_buf,
42 sizeof(struct rsp_box));
43 DEFINE_CACHE_ALIGN_BUFFER(unsigned char, thor_rx_data_buf,
44 sizeof(struct rqt_box));
46 /* ********************************************************** */
47 /* THOR protocol - transmission handling */
48 /* ********************************************************** */
49 DEFINE_CACHE_ALIGN_BUFFER(char, f_name, F_NAME_BUF_SIZE);
50 static unsigned long long int thor_file_size;
51 static int alt_setting_num;
53 static void send_rsp(const struct rsp_box *rsp)
55 memcpy(thor_tx_data_buf, rsp, sizeof(struct rsp_box));
56 thor_tx_data(thor_tx_data_buf, sizeof(struct rsp_box));
58 debug("-RSP: %d, %d\n", rsp->rsp, rsp->rsp_data);
61 static void send_data_rsp(s32 ack, s32 count)
63 ALLOC_CACHE_ALIGN_BUFFER(struct data_rsp_box, rsp,
64 sizeof(struct data_rsp_box));
69 memcpy(thor_tx_data_buf, rsp, sizeof(struct data_rsp_box));
70 thor_tx_data(thor_tx_data_buf, sizeof(struct data_rsp_box));
72 debug("-DATA RSP: %d, %d\n", ack, count);
75 static int process_rqt_info(const struct rqt_box *rqt)
77 ALLOC_CACHE_ALIGN_BUFFER(struct rsp_box, rsp, sizeof(struct rsp_box));
78 memset(rsp, 0, sizeof(struct rsp_box));
81 rsp->rsp_data = rqt->rqt_data;
83 switch (rqt->rqt_data) {
84 case RQT_INFO_VER_PROTOCOL:
85 rsp->int_data[0] = VER_PROTOCOL_MAJOR;
86 rsp->int_data[1] = VER_PROTOCOL_MINOR;
89 snprintf(rsp->str_data[0], sizeof(rsp->str_data[0]),
92 case RQT_INIT_VER_BOOT:
93 sprintf(rsp->str_data[0], "%s", U_BOOT_VERSION);
95 case RQT_INIT_VER_KERNEL:
96 sprintf(rsp->str_data[0], "%s", "k unknown");
98 case RQT_INIT_VER_PLATFORM:
99 sprintf(rsp->str_data[0], "%s", "p unknown");
101 case RQT_INIT_VER_CSC:
102 sprintf(rsp->str_data[0], "%s", "c unknown");
112 static int process_rqt_cmd(const struct rqt_box *rqt)
114 ALLOC_CACHE_ALIGN_BUFFER(struct rsp_box, rsp, sizeof(struct rsp_box));
115 memset(rsp, 0, sizeof(struct rsp_box));
118 rsp->rsp_data = rqt->rqt_data;
120 switch (rqt->rqt_data) {
122 debug("TARGET RESET\n");
126 #ifdef CONFIG_THOR_RESET_OFF
129 run_command("reset", 0);
131 case RQT_CMD_POWEROFF:
132 case RQT_CMD_EFSCLEAR:
135 printf("Command not supported -> cmd: %d\n", rqt->rqt_data);
142 static long long int download_head(unsigned long long total,
143 unsigned int packet_size,
147 long long int rcv_cnt = 0, left_to_rcv, ret_rcv;
148 struct dfu_entity *dfu_entity = dfu_get_entity(alt_setting_num);
149 void *transfer_buffer = dfu_get_buf(dfu_entity);
150 void *buf = transfer_buffer;
151 int usb_pkt_cnt = 0, ret;
154 * Files smaller than THOR_STORE_UNIT_SIZE (now 32 MiB) are stored on
156 * The packet response is sent on the purpose after successful data
157 * chunk write. There is a room for improvement when asynchronous write
160 while (total - rcv_cnt >= packet_size) {
161 thor_set_dma(buf, packet_size);
163 ret_rcv = thor_rx_data();
167 debug("%d: RCV data count: %llu cnt: %d\n", usb_pkt_cnt,
170 if ((rcv_cnt % THOR_STORE_UNIT_SIZE) == 0) {
171 ret = dfu_write(dfu_get_entity(alt_setting_num),
172 transfer_buffer, THOR_STORE_UNIT_SIZE,
175 error("DFU write failed [%d] cnt: %d",
179 buf = transfer_buffer;
181 send_data_rsp(0, ++usb_pkt_cnt);
184 /* Calculate the amount of data to arrive from PC (in bytes) */
185 left_to_rcv = total - rcv_cnt;
188 * Calculate number of data already received. but not yet stored
189 * on the medium (they are smaller than THOR_STORE_UNIT_SIZE)
191 *left = left_to_rcv + buf - transfer_buffer;
192 debug("%s: left: %llu left_to_rcv: %llu buf: 0x%p\n", __func__,
193 *left, left_to_rcv, buf);
196 thor_set_dma(buf, packet_size);
197 ret_rcv = thor_rx_data();
201 send_data_rsp(0, ++usb_pkt_cnt);
204 debug("%s: %llu total: %llu cnt: %d\n", __func__, rcv_cnt, total, *cnt);
209 static int download_tail(long long int left, int cnt)
211 struct dfu_entity *dfu_entity;
212 void *transfer_buffer;
215 debug("%s: left: %llu cnt: %d\n", __func__, left, cnt);
217 dfu_entity = dfu_get_entity(alt_setting_num);
219 error("Alt setting: %d entity not found!\n", alt_setting_num);
223 transfer_buffer = dfu_get_buf(dfu_entity);
224 if (!transfer_buffer) {
225 error("Transfer buffer not allocated!");
230 ret = dfu_write(dfu_entity, transfer_buffer, left, cnt++);
232 error("DFU write failed [%d]: left: %llu", ret, left);
238 * To store last "packet" or write file from buffer to filesystem
239 * DFU storage backend requires dfu_flush
241 * This also frees memory malloc'ed by dfu_get_buf(), so no explicit
242 * need fo call dfu_free_buf() is needed.
244 ret = dfu_flush(dfu_entity, transfer_buffer, 0, cnt);
246 error("DFU flush failed!");
251 static long long int process_rqt_download(const struct rqt_box *rqt)
253 ALLOC_CACHE_ALIGN_BUFFER(struct rsp_box, rsp, sizeof(struct rsp_box));
254 static long long int left, ret_head;
255 int file_type, ret = 0;
258 memset(rsp, 0, sizeof(struct rsp_box));
260 rsp->rsp_data = rqt->rqt_data;
262 switch (rqt->rqt_data) {
264 thor_file_size = rqt->int_data[0];
265 debug("INIT: total %d bytes\n", rqt->int_data[0]);
267 case RQT_DL_FILE_INFO:
268 file_type = rqt->int_data[0];
269 if (file_type == FILE_TYPE_PIT) {
270 puts("PIT table file - not supported\n");
271 rsp->ack = -ENOTSUPP;
276 thor_file_size = rqt->int_data[1];
277 memcpy(f_name, rqt->str_data[0], F_NAME_BUF_SIZE);
279 debug("INFO: name(%s, %d), size(%llu), type(%d)\n",
280 f_name, 0, thor_file_size, file_type);
282 rsp->int_data[0] = THOR_PACKET_SIZE;
284 alt_setting_num = dfu_get_alt(f_name);
285 if (alt_setting_num < 0) {
286 error("Alt setting [%d] to write not found!",
292 case RQT_DL_FILE_START:
294 ret_head = download_head(thor_file_size, THOR_PACKET_SIZE,
301 case RQT_DL_FILE_END:
302 debug("DL FILE_END\n");
303 rsp->ack = download_tail(left, cnt);
312 error("Operation not supported: %d", rqt->rqt_data);
320 static int process_data(void)
322 ALLOC_CACHE_ALIGN_BUFFER(struct rqt_box, rqt, sizeof(struct rqt_box));
325 memcpy(rqt, thor_rx_data_buf, sizeof(struct rqt_box));
327 debug("+RQT: %d, %d\n", rqt->rqt, rqt->rqt_data);
331 ret = process_rqt_info(rqt);
334 ret = process_rqt_cmd(rqt);
337 ret = (int) process_rqt_download(rqt);
340 puts("RQT: UPLOAD not supported!\n");
343 error("unknown request (%d)", rqt->rqt);
349 /* ********************************************************** */
350 /* THOR USB Function */
351 /* ********************************************************** */
353 static inline struct usb_endpoint_descriptor *
354 ep_desc(struct usb_gadget *g, struct usb_endpoint_descriptor *hs,
355 struct usb_endpoint_descriptor *fs)
357 if (gadget_is_dualspeed(g) && g->speed == USB_SPEED_HIGH)
362 static struct usb_interface_descriptor thor_downloader_intf_data = {
363 .bLength = sizeof(thor_downloader_intf_data),
364 .bDescriptorType = USB_DT_INTERFACE,
367 .bInterfaceClass = USB_CLASS_CDC_DATA,
370 static struct usb_endpoint_descriptor fs_in_desc = {
371 .bLength = USB_DT_ENDPOINT_SIZE,
372 .bDescriptorType = USB_DT_ENDPOINT,
374 .bEndpointAddress = USB_DIR_IN,
375 .bmAttributes = USB_ENDPOINT_XFER_BULK,
378 static struct usb_endpoint_descriptor fs_out_desc = {
379 .bLength = USB_DT_ENDPOINT_SIZE,
380 .bDescriptorType = USB_DT_ENDPOINT,
382 .bEndpointAddress = USB_DIR_OUT,
383 .bmAttributes = USB_ENDPOINT_XFER_BULK,
386 /* CDC configuration */
387 static struct usb_interface_descriptor thor_downloader_intf_int = {
388 .bLength = sizeof(thor_downloader_intf_int),
389 .bDescriptorType = USB_DT_INTERFACE,
392 .bInterfaceClass = USB_CLASS_COMM,
393 /* 0x02 Abstract Line Control Model */
394 .bInterfaceSubClass = USB_CDC_SUBCLASS_ACM,
395 /* 0x01 Common AT commands */
396 .bInterfaceProtocol = USB_CDC_ACM_PROTO_AT_V25TER,
399 static struct usb_cdc_header_desc thor_downloader_cdc_header = {
400 .bLength = sizeof(thor_downloader_cdc_header),
401 .bDescriptorType = 0x24, /* CS_INTERFACE */
402 .bDescriptorSubType = 0x00,
406 static struct usb_cdc_call_mgmt_descriptor thor_downloader_cdc_call = {
407 .bLength = sizeof(thor_downloader_cdc_call),
408 .bDescriptorType = 0x24, /* CS_INTERFACE */
409 .bDescriptorSubType = 0x01,
410 .bmCapabilities = 0x00,
411 .bDataInterface = 0x01,
414 static struct usb_cdc_acm_descriptor thor_downloader_cdc_abstract = {
415 .bLength = sizeof(thor_downloader_cdc_abstract),
416 .bDescriptorType = 0x24, /* CS_INTERFACE */
417 .bDescriptorSubType = 0x02,
418 .bmCapabilities = 0x00,
421 static struct usb_cdc_union_desc thor_downloader_cdc_union = {
422 .bLength = sizeof(thor_downloader_cdc_union),
423 .bDescriptorType = 0x24, /* CS_INTERFACE */
424 .bDescriptorSubType = USB_CDC_UNION_TYPE,
427 static struct usb_endpoint_descriptor fs_int_desc = {
428 .bLength = USB_DT_ENDPOINT_SIZE,
429 .bDescriptorType = USB_DT_ENDPOINT,
431 .bEndpointAddress = 3 | USB_DIR_IN,
432 .bmAttributes = USB_ENDPOINT_XFER_INT,
433 .wMaxPacketSize = __constant_cpu_to_le16(16),
438 static struct usb_interface_assoc_descriptor
439 thor_iad_descriptor = {
440 .bLength = sizeof(thor_iad_descriptor),
441 .bDescriptorType = USB_DT_INTERFACE_ASSOCIATION,
443 .bFirstInterface = 0,
444 .bInterfaceCount = 2, /* control + data */
445 .bFunctionClass = USB_CLASS_COMM,
446 .bFunctionSubClass = USB_CDC_SUBCLASS_ACM,
447 .bFunctionProtocol = USB_CDC_PROTO_NONE,
450 static struct usb_endpoint_descriptor hs_in_desc = {
451 .bLength = USB_DT_ENDPOINT_SIZE,
452 .bDescriptorType = USB_DT_ENDPOINT,
454 .bmAttributes = USB_ENDPOINT_XFER_BULK,
455 .wMaxPacketSize = __constant_cpu_to_le16(512),
458 static struct usb_endpoint_descriptor hs_out_desc = {
459 .bLength = USB_DT_ENDPOINT_SIZE,
460 .bDescriptorType = USB_DT_ENDPOINT,
462 .bmAttributes = USB_ENDPOINT_XFER_BULK,
463 .wMaxPacketSize = __constant_cpu_to_le16(512),
466 static struct usb_endpoint_descriptor hs_int_desc = {
467 .bLength = USB_DT_ENDPOINT_SIZE,
468 .bDescriptorType = USB_DT_ENDPOINT,
470 .bmAttributes = USB_ENDPOINT_XFER_INT,
471 .wMaxPacketSize = __constant_cpu_to_le16(16),
477 * This attribute vendor descriptor is necessary for correct operation with
478 * Windows version of THOR download program
480 * It prevents windows driver from sending zero lenght packet (ZLP) after
481 * each THOR_PACKET_SIZE. This assures consistent behaviour with libusb
483 static struct usb_cdc_attribute_vendor_descriptor thor_downloader_cdc_av = {
484 .bLength = sizeof(thor_downloader_cdc_av),
485 .bDescriptorType = 0x24,
486 .bDescriptorSubType = 0x80,
492 static const struct usb_descriptor_header *hs_thor_downloader_function[] = {
493 (struct usb_descriptor_header *)&thor_iad_descriptor,
495 (struct usb_descriptor_header *)&thor_downloader_intf_int,
496 (struct usb_descriptor_header *)&thor_downloader_cdc_header,
497 (struct usb_descriptor_header *)&thor_downloader_cdc_call,
498 (struct usb_descriptor_header *)&thor_downloader_cdc_abstract,
499 (struct usb_descriptor_header *)&thor_downloader_cdc_union,
500 (struct usb_descriptor_header *)&hs_int_desc,
502 (struct usb_descriptor_header *)&thor_downloader_intf_data,
503 (struct usb_descriptor_header *)&thor_downloader_cdc_av,
504 (struct usb_descriptor_header *)&hs_in_desc,
505 (struct usb_descriptor_header *)&hs_out_desc,
509 /*-------------------------------------------------------------------------*/
510 static struct usb_request *alloc_ep_req(struct usb_ep *ep, unsigned length)
512 struct usb_request *req;
514 req = usb_ep_alloc_request(ep, 0);
518 req->length = length;
519 req->buf = memalign(CONFIG_SYS_CACHELINE_SIZE, length);
521 usb_ep_free_request(ep, req);
528 static int thor_rx_data(void)
530 struct thor_dev *dev = thor_func->dev;
531 int data_to_rx, tmp, status;
533 data_to_rx = dev->out_req->length;
536 dev->out_req->length = data_to_rx;
537 debug("dev->out_req->length:%d dev->rxdata:%d\n",
538 dev->out_req->length, dev->rxdata);
540 status = usb_ep_queue(dev->out_ep, dev->out_req, 0);
542 error("kill %s: resubmit %d bytes --> %d",
543 dev->out_ep->name, dev->out_req->length, status);
544 usb_ep_set_halt(dev->out_ep);
548 while (!dev->rxdata) {
549 usb_gadget_handle_interrupts(0);
554 data_to_rx -= dev->out_req->actual;
555 } while (data_to_rx);
560 static void thor_tx_data(unsigned char *data, int len)
562 struct thor_dev *dev = thor_func->dev;
563 unsigned char *ptr = dev->in_req->buf;
567 memcpy(ptr, data, len);
569 dev->in_req->length = len;
571 debug("%s: dev->in_req->length:%d to_cpy:%d\n", __func__,
572 dev->in_req->length, sizeof(data));
574 status = usb_ep_queue(dev->in_ep, dev->in_req, 0);
576 error("kill %s: resubmit %d bytes --> %d",
577 dev->in_ep->name, dev->in_req->length, status);
578 usb_ep_set_halt(dev->in_ep);
581 /* Wait until tx interrupt received */
583 usb_gadget_handle_interrupts(0);
588 static void thor_rx_tx_complete(struct usb_ep *ep, struct usb_request *req)
590 struct thor_dev *dev = thor_func->dev;
591 int status = req->status;
593 debug("%s: ep_ptr:%p, req_ptr:%p\n", __func__, ep, req);
596 if (ep == dev->out_ep)
603 /* this endpoint is normally active while we're configured */
604 case -ECONNABORTED: /* hardware forced ep reset */
605 case -ECONNRESET: /* request dequeued */
606 case -ESHUTDOWN: /* disconnect from host */
607 case -EREMOTEIO: /* short read */
609 error("ERROR:%d", status);
613 debug("%s complete --> %d, %d/%d\n", ep->name,
614 status, req->actual, req->length);
617 static struct usb_request *thor_start_ep(struct usb_ep *ep)
619 struct usb_request *req;
621 req = alloc_ep_req(ep, THOR_PACKET_SIZE);
622 debug("%s: ep:%p req:%p\n", __func__, ep, req);
627 memset(req->buf, 0, req->length);
628 req->complete = thor_rx_tx_complete;
633 static void thor_setup_complete(struct usb_ep *ep, struct usb_request *req)
635 if (req->status || req->actual != req->length)
636 debug("setup complete --> %d, %d/%d\n",
637 req->status, req->actual, req->length);
641 thor_func_setup(struct usb_function *f, const struct usb_ctrlrequest *ctrl)
643 struct thor_dev *dev = thor_func->dev;
644 struct usb_request *req = dev->req;
645 struct usb_gadget *gadget = dev->gadget;
648 u16 len = le16_to_cpu(ctrl->wLength);
650 debug("Req_Type: 0x%x Req: 0x%x wValue: 0x%x wIndex: 0x%x wLen: 0x%x\n",
651 ctrl->bRequestType, ctrl->bRequest, ctrl->wValue, ctrl->wIndex,
654 switch (ctrl->bRequest) {
655 case USB_CDC_REQ_SET_CONTROL_LINE_STATE:
658 case USB_CDC_REQ_SET_LINE_CODING:
660 /* Line Coding set done = configuration done */
661 thor_func->dev->configuration_done = 1;
665 error("thor_setup: unknown request: %d", ctrl->bRequest);
670 req->zero = value < len;
671 value = usb_ep_queue(gadget->ep0, req, 0);
673 debug("%s: ep_queue: %d\n", __func__, value);
681 /* Specific to the THOR protocol */
682 static void thor_set_dma(void *addr, int len)
684 struct thor_dev *dev = thor_func->dev;
686 debug("in_req:%p, out_req:%p\n", dev->in_req, dev->out_req);
687 debug("addr:%p, len:%d\n", addr, len);
689 dev->out_req->buf = addr;
690 dev->out_req->length = len;
695 struct thor_dev *dev = thor_func->dev;
697 /* Wait for a device enumeration and configuration settings */
698 debug("THOR enumeration/configuration setting....\n");
699 while (!dev->configuration_done)
700 usb_gadget_handle_interrupts(0);
702 thor_set_dma(thor_rx_data_buf, strlen("THOR"));
703 /* detect the download request from Host PC */
704 if (thor_rx_data() < 0) {
705 printf("%s: Data not received!\n", __func__);
709 if (!strncmp((char *)thor_rx_data_buf, "THOR", strlen("THOR"))) {
710 puts("Download request from the Host PC\n");
711 udelay(30 * 1000); /* 30 ms */
713 strcpy((char *)thor_tx_data_buf, "ROHT");
714 thor_tx_data(thor_tx_data_buf, strlen("ROHT"));
716 puts("Wrong reply information\n");
723 int thor_handle(void)
727 /* receive the data from Host PC */
729 thor_set_dma(thor_rx_data_buf, sizeof(struct rqt_box));
730 ret = thor_rx_data();
733 ret = process_data();
734 #ifdef CONFIG_THOR_RESET_OFF
735 if (ret == RESET_DONE)
741 printf("%s: No data received!\n", __func__);
749 static int thor_func_bind(struct usb_configuration *c, struct usb_function *f)
751 struct usb_gadget *gadget = c->cdev->gadget;
752 struct f_thor *f_thor = func_to_thor(f);
753 struct thor_dev *dev;
758 dev = memalign(CONFIG_SYS_CACHELINE_SIZE, sizeof(*dev));
762 memset(dev, 0, sizeof(*dev));
763 dev->gadget = gadget;
766 debug("%s: usb_configuration: 0x%p usb_function: 0x%p\n",
768 debug("f_thor: 0x%p thor: 0x%p\n", f_thor, dev);
771 /* preallocate control response and buffer */
772 dev->req = usb_ep_alloc_request(gadget->ep0, 0);
777 dev->req->buf = memalign(CONFIG_SYS_CACHELINE_SIZE,
778 gadget->ep0->maxpacket);
779 if (!dev->req->buf) {
784 dev->req->complete = thor_setup_complete;
786 /* DYNAMIC interface numbers assignments */
787 status = usb_interface_id(c, f);
792 thor_downloader_intf_int.bInterfaceNumber = status;
793 thor_downloader_cdc_union.bMasterInterface0 = status;
795 status = usb_interface_id(c, f);
800 thor_downloader_intf_data.bInterfaceNumber = status;
801 thor_downloader_cdc_union.bSlaveInterface0 = status;
803 /* allocate instance-specific endpoints */
804 ep = usb_ep_autoconfig(gadget, &fs_in_desc);
810 if (gadget_is_dualspeed(gadget)) {
811 hs_in_desc.bEndpointAddress =
812 fs_in_desc.bEndpointAddress;
815 dev->in_ep = ep; /* Store IN EP for enabling @ setup */
816 ep->driver_data = dev;
818 ep = usb_ep_autoconfig(gadget, &fs_out_desc);
824 if (gadget_is_dualspeed(gadget))
825 hs_out_desc.bEndpointAddress =
826 fs_out_desc.bEndpointAddress;
828 dev->out_ep = ep; /* Store OUT EP for enabling @ setup */
829 ep->driver_data = dev;
831 ep = usb_ep_autoconfig(gadget, &fs_int_desc);
838 ep->driver_data = dev;
840 if (gadget_is_dualspeed(gadget)) {
841 hs_int_desc.bEndpointAddress =
842 fs_int_desc.bEndpointAddress;
844 f->hs_descriptors = (struct usb_descriptor_header **)
845 &hs_thor_downloader_function;
847 if (!f->hs_descriptors)
851 debug("%s: out_ep:%p out_req:%p\n", __func__,
852 dev->out_ep, dev->out_req);
861 static void free_ep_req(struct usb_ep *ep, struct usb_request *req)
864 usb_ep_free_request(ep, req);
867 static void thor_unbind(struct usb_configuration *c, struct usb_function *f)
869 struct f_thor *f_thor = func_to_thor(f);
870 struct thor_dev *dev = f_thor->dev;
873 memset(thor_func, 0, sizeof(*thor_func));
877 static void thor_func_disable(struct usb_function *f)
879 struct f_thor *f_thor = func_to_thor(f);
880 struct thor_dev *dev = f_thor->dev;
882 debug("%s:\n", __func__);
884 /* Avoid freeing memory when ep is still claimed */
885 if (dev->in_ep->driver_data) {
886 free_ep_req(dev->in_ep, dev->in_req);
887 usb_ep_disable(dev->in_ep);
888 dev->in_ep->driver_data = NULL;
891 if (dev->out_ep->driver_data) {
892 dev->out_req->buf = NULL;
893 usb_ep_free_request(dev->out_ep, dev->out_req);
894 usb_ep_disable(dev->out_ep);
895 dev->out_ep->driver_data = NULL;
898 if (dev->int_ep->driver_data) {
899 usb_ep_disable(dev->int_ep);
900 dev->int_ep->driver_data = NULL;
904 static int thor_eps_setup(struct usb_function *f)
906 struct usb_composite_dev *cdev = f->config->cdev;
907 struct usb_gadget *gadget = cdev->gadget;
908 struct thor_dev *dev = thor_func->dev;
909 struct usb_endpoint_descriptor *d;
910 struct usb_request *req;
915 d = ep_desc(gadget, &hs_in_desc, &fs_in_desc);
916 debug("(d)bEndpointAddress: 0x%x\n", d->bEndpointAddress);
918 result = usb_ep_enable(ep, d);
922 ep->driver_data = cdev; /* claim */
923 req = thor_start_ep(ep);
932 d = ep_desc(gadget, &hs_out_desc, &fs_out_desc);
933 debug("(d)bEndpointAddress: 0x%x\n", d->bEndpointAddress);
935 result = usb_ep_enable(ep, d);
939 ep->driver_data = cdev; /* claim */
940 req = thor_start_ep(ep);
950 ep->driver_data = cdev; /* claim */
956 static int thor_func_set_alt(struct usb_function *f,
957 unsigned intf, unsigned alt)
959 struct thor_dev *dev = thor_func->dev;
962 debug("%s: func: %s intf: %d alt: %d\n",
963 __func__, f->name, intf, alt);
967 debug("ACM INTR interface\n");
970 debug("Communication Data interface\n");
971 result = thor_eps_setup(f);
973 error("%s: EPs setup failed!", __func__);
974 dev->configuration_done = 1;
981 static int thor_func_init(struct usb_configuration *c)
983 struct f_thor *f_thor;
986 debug("%s: cdev: 0x%p\n", __func__, c->cdev);
988 f_thor = memalign(CONFIG_SYS_CACHELINE_SIZE, sizeof(*f_thor));
992 memset(f_thor, 0, sizeof(*f_thor));
994 f_thor->usb_function.name = "f_thor";
995 f_thor->usb_function.bind = thor_func_bind;
996 f_thor->usb_function.unbind = thor_unbind;
997 f_thor->usb_function.setup = thor_func_setup;
998 f_thor->usb_function.set_alt = thor_func_set_alt;
999 f_thor->usb_function.disable = thor_func_disable;
1001 status = usb_add_function(c, &f_thor->usb_function);
1008 int thor_add(struct usb_configuration *c)
1010 debug("%s:\n", __func__);
1011 return thor_func_init(c);
1014 DECLARE_GADGET_BIND_CALLBACK(usb_dnl_thor, thor_add);