30 struct f_dfu {  struct
49 typedef int (*dfu_state_fn) (struct f_dfu *,  argument
54 static inline struct f_dfu *func_to_dfu(struct usb_function *f)  in func_to_dfu()
56 	return container_of(f, struct f_dfu, usb_function);  in func_to_dfu()
158 	struct f_dfu *f_dfu = req->context;  in dnload_request_complete()  local
161 	ret = dfu_write(dfu_get_entity(f_dfu->altsetting), req->buf,  in dnload_request_complete()
162 			req->actual, f_dfu->blk_seq_num);  in dnload_request_complete()
164 		f_dfu->dfu_status = DFU_STATUS_errUNKNOWN;  in dnload_request_complete()
165 		f_dfu->dfu_state = DFU_STATE_dfuERROR;  in dnload_request_complete()
171 	struct f_dfu *f_dfu = req->context;  in dnload_request_flush()  local
172 	dfu_set_defer_flush(dfu_get_entity(f_dfu->altsetting));  in dnload_request_flush()
184 	struct f_dfu *f_dfu = req->context;  in handle_getstatus()  local
185 	struct dfu_entity *dfu = dfu_get_entity(f_dfu->altsetting);  in handle_getstatus()
189 	switch (f_dfu->dfu_state) {  in handle_getstatus()
192 		f_dfu->dfu_state = DFU_STATE_dfuDNLOAD_IDLE;  in handle_getstatus()
195 		f_dfu->dfu_state = DFU_STATE_dfuMANIFEST;  in handle_getstatus()
204 	if (f_dfu->poll_timeout)  in handle_getstatus()
205 		if (!(f_dfu->blk_seq_num %  in handle_getstatus()
207 			dfu_set_poll_timeout(dstat, f_dfu->poll_timeout);  in handle_getstatus()
210 	dstat->bStatus = f_dfu->dfu_status;  in handle_getstatus()
211 	dstat->bState = f_dfu->dfu_state;  in handle_getstatus()
219 	struct f_dfu *f_dfu = req->context;  in handle_getstate()  local
221 	((u8 *)req->buf)[0] = f_dfu->dfu_state;  in handle_getstate()
225 static inline void to_dfu_mode(struct f_dfu *f_dfu)  in to_dfu_mode()  argument
227 	f_dfu->usb_function.strings = dfu_strings;  in to_dfu_mode()
228 	f_dfu->usb_function.hs_descriptors = f_dfu->function;  in to_dfu_mode()
229 	f_dfu->usb_function.descriptors = f_dfu->function;  in to_dfu_mode()
230 	f_dfu->dfu_state = DFU_STATE_dfuIDLE;  in to_dfu_mode()
233 static inline void to_runtime_mode(struct f_dfu *f_dfu)  in to_runtime_mode()  argument
235 	f_dfu->usb_function.strings = NULL;  in to_runtime_mode()
236 	f_dfu->usb_function.hs_descriptors = dfu_runtime_descs;  in to_runtime_mode()
237 	f_dfu->usb_function.descriptors = dfu_runtime_descs;  in to_runtime_mode()
242 	struct f_dfu *f_dfu = req->context;  in handle_upload()  local
244 	return dfu_read(dfu_get_entity(f_dfu->altsetting), req->buf,  in handle_upload()
245 			req->length, f_dfu->blk_seq_num);  in handle_upload()
252 	struct f_dfu *f_dfu = req->context;  in handle_dnload()  local
255 		f_dfu->dfu_state = DFU_STATE_dfuMANIFEST_SYNC;  in handle_dnload()
264 static int state_app_idle(struct f_dfu *f_dfu,  in state_app_idle()  argument
279 		f_dfu->dfu_state = DFU_STATE_appDETACH;  in state_app_idle()
280 		to_dfu_mode(f_dfu);  in state_app_idle()
291 static int state_app_detach(struct f_dfu *f_dfu,  in state_app_detach()  argument
306 		f_dfu->dfu_state = DFU_STATE_appIDLE;  in state_app_detach()
314 static int state_dfu_idle(struct f_dfu *f_dfu,  in state_dfu_idle()  argument
326 			f_dfu->dfu_state = DFU_STATE_dfuERROR;  in state_dfu_idle()
330 		f_dfu->dfu_state = DFU_STATE_dfuDNLOAD_SYNC;  in state_dfu_idle()
331 		f_dfu->blk_seq_num = w_value;  in state_dfu_idle()
335 		f_dfu->dfu_state = DFU_STATE_dfuUPLOAD_IDLE;  in state_dfu_idle()
336 		f_dfu->blk_seq_num = 0;  in state_dfu_idle()
358 		f_dfu->dfu_state =  in state_dfu_idle()
360 		to_runtime_mode(f_dfu);  in state_dfu_idle()
361 		f_dfu->dfu_state = DFU_STATE_appIDLE;  in state_dfu_idle()
366 		f_dfu->dfu_state = DFU_STATE_dfuERROR;  in state_dfu_idle()
374 static int state_dfu_dnload_sync(struct f_dfu *f_dfu,  in state_dfu_dnload_sync()  argument
389 		f_dfu->dfu_state = DFU_STATE_dfuERROR;  in state_dfu_dnload_sync()
397 static int state_dfu_dnbusy(struct f_dfu *f_dfu,  in state_dfu_dnbusy()  argument
409 		f_dfu->dfu_state = DFU_STATE_dfuERROR;  in state_dfu_dnbusy()
417 static int state_dfu_dnload_idle(struct f_dfu *f_dfu,  in state_dfu_dnload_idle()  argument
428 		f_dfu->dfu_state = DFU_STATE_dfuDNLOAD_SYNC;  in state_dfu_dnload_idle()
429 		f_dfu->blk_seq_num = w_value;  in state_dfu_dnload_idle()
433 		f_dfu->dfu_state = DFU_STATE_dfuIDLE;  in state_dfu_dnload_idle()
443 		f_dfu->dfu_state = DFU_STATE_dfuERROR;  in state_dfu_dnload_idle()
451 static int state_dfu_manifest_sync(struct f_dfu *f_dfu,  in state_dfu_manifest_sync()  argument
461 		f_dfu->dfu_state = DFU_STATE_dfuMANIFEST;  in state_dfu_manifest_sync()
463 		f_dfu->blk_seq_num = 0;  in state_dfu_manifest_sync()
470 		f_dfu->dfu_state = DFU_STATE_dfuERROR;  in state_dfu_manifest_sync()
478 static int state_dfu_manifest(struct f_dfu *f_dfu,  in state_dfu_manifest()  argument
488 		f_dfu->dfu_state = DFU_STATE_dfuIDLE;  in state_dfu_manifest()
490 		f_dfu->blk_seq_num = 0;  in state_dfu_manifest()
497 		f_dfu->dfu_state = DFU_STATE_dfuERROR;  in state_dfu_manifest()
504 static int state_dfu_upload_idle(struct f_dfu *f_dfu,  in state_dfu_upload_idle()  argument
516 		f_dfu->blk_seq_num = w_value;  in state_dfu_upload_idle()
519 			f_dfu->dfu_state = DFU_STATE_dfuIDLE;  in state_dfu_upload_idle()
522 		f_dfu->dfu_state = DFU_STATE_dfuIDLE;  in state_dfu_upload_idle()
533 		f_dfu->dfu_state = DFU_STATE_dfuERROR;  in state_dfu_upload_idle()
541 static int state_dfu_error(struct f_dfu *f_dfu,  in state_dfu_error()  argument
556 		f_dfu->dfu_state = DFU_STATE_dfuIDLE;  in state_dfu_error()
557 		f_dfu->dfu_status = DFU_STATUS_OK;  in state_dfu_error()
562 		f_dfu->dfu_state = DFU_STATE_dfuERROR;  in state_dfu_error()
589 	struct f_dfu *f_dfu = f->config->cdev->req->context;  in dfu_handle()  local
597 	       req_type, ctrl->bRequest, f_dfu->dfu_state);  in dfu_handle()
606 		value = dfu_state[f_dfu->dfu_state] (f_dfu, ctrl, gadget, req);  in dfu_handle()
624 dfu_prepare_strings(struct f_dfu *f_dfu, int n)  in dfu_prepare_strings()  argument
629 	f_dfu->strings = calloc(sizeof(struct usb_string), n + 1);  in dfu_prepare_strings()
630 	if (!f_dfu->strings)  in dfu_prepare_strings()
635 		f_dfu->strings[i].s = de->name;  in dfu_prepare_strings()
638 	f_dfu->strings[i].id = 0;  in dfu_prepare_strings()
639 	f_dfu->strings[i].s = NULL;  in dfu_prepare_strings()
644 static int dfu_prepare_function(struct f_dfu *f_dfu, int n)  in dfu_prepare_function()  argument
649 	f_dfu->function = calloc(sizeof(struct usb_descriptor_header *), n + 2);  in dfu_prepare_function()
650 	if (!f_dfu->function)  in dfu_prepare_function()
666 		f_dfu->function[i] = (struct usb_descriptor_header *)d;  in dfu_prepare_function()
670 	f_dfu->function[i] = calloc(sizeof(dfu_func), 1);  in dfu_prepare_function()
671 	if (!f_dfu->function[i])  in dfu_prepare_function()
673 	memcpy(f_dfu->function[i], &dfu_func, sizeof(dfu_func));  in dfu_prepare_function()
676 	f_dfu->function[i] = NULL;  in dfu_prepare_function()
682 		free(f_dfu->function[--i]);  in dfu_prepare_function()
683 		f_dfu->function[i] = NULL;  in dfu_prepare_function()
685 	free(f_dfu->function);  in dfu_prepare_function()
693 	struct f_dfu *f_dfu = func_to_dfu(f);  in dfu_bind()  local
703 	f_dfu->dfu_state = DFU_STATE_appIDLE;  in dfu_bind()
704 	f_dfu->dfu_status = DFU_STATUS_OK;  in dfu_bind()
706 	rv = dfu_prepare_function(f_dfu, alt_num);  in dfu_bind()
710 	rv = dfu_prepare_strings(f_dfu, alt_num);  in dfu_bind()
717 		f_dfu->strings[i].id = id;  in dfu_bind()
718 		((struct usb_interface_descriptor *)f_dfu->function[i])  in dfu_bind()
722 	to_dfu_mode(f_dfu);  in dfu_bind()
724 	stringtab_dfu.strings = f_dfu->strings;  in dfu_bind()
726 	cdev->req->context = f_dfu;  in dfu_bind()
738 	struct f_dfu *f_dfu = func_to_dfu(f);  in dfu_unbind()  local
742 	if (f_dfu->strings) {  in dfu_unbind()
745 			f_dfu->strings[--i].s = NULL;  in dfu_unbind()
747 		free(f_dfu->strings);  in dfu_unbind()
750 	if (f_dfu->function) {  in dfu_unbind()
754 			free(f_dfu->function[--i]);  in dfu_unbind()
755 			f_dfu->function[i] = NULL;  in dfu_unbind()
757 		free(f_dfu->function);  in dfu_unbind()
760 	free(f_dfu);  in dfu_unbind()
765 	struct f_dfu *f_dfu = func_to_dfu(f);  in dfu_set_alt()  local
769 	f_dfu->altsetting = alt;  in dfu_set_alt()
770 	f_dfu->dfu_state = DFU_STATE_dfuIDLE;  in dfu_set_alt()
771 	f_dfu->dfu_status = DFU_STATUS_OK;  in dfu_set_alt()
778 	struct f_dfu *f_dfu = func_to_dfu(f);  in __dfu_get_alt()  local
780 	return f_dfu->altsetting;  in __dfu_get_alt()
786 	struct f_dfu *f_dfu = func_to_dfu(f);  in dfu_disable()  local
787 	if (f_dfu->config == 0)  in dfu_disable()
792 	f_dfu->config = 0;  in dfu_disable()
797 	struct f_dfu *f_dfu;  in dfu_bind_config()  local
800 	f_dfu = calloc(sizeof(*f_dfu), 1);  in dfu_bind_config()
801 	if (!f_dfu)  in dfu_bind_config()
803 	f_dfu->usb_function.name = "dfu";  in dfu_bind_config()
804 	f_dfu->usb_function.hs_descriptors = dfu_runtime_descs;  in dfu_bind_config()
805 	f_dfu->usb_function.descriptors = dfu_runtime_descs;  in dfu_bind_config()
806 	f_dfu->usb_function.bind = dfu_bind;  in dfu_bind_config()
807 	f_dfu->usb_function.unbind = dfu_unbind;  in dfu_bind_config()
808 	f_dfu->usb_function.set_alt = dfu_set_alt;  in dfu_bind_config()
809 	f_dfu->usb_function.get_alt = __dfu_get_alt;  in dfu_bind_config()
810 	f_dfu->usb_function.disable = dfu_disable;  in dfu_bind_config()
811 	f_dfu->usb_function.strings = dfu_generic_strings;  in dfu_bind_config()
812 	f_dfu->usb_function.setup = dfu_handle;  in dfu_bind_config()
813 	f_dfu->poll_timeout = DFU_DEFAULT_POLL_TIMEOUT;  in dfu_bind_config()
815 	status = usb_add_function(c, &f_dfu->usb_function);  in dfu_bind_config()
817 		free(f_dfu);  in dfu_bind_config()