29 struct f_dfu {  struct
48 typedef int (*dfu_state_fn) (struct f_dfu *,  argument
53 static inline struct f_dfu *func_to_dfu(struct usb_function *f)  in func_to_dfu()
55 	return container_of(f, struct f_dfu, usb_function);  in func_to_dfu()
157 	struct f_dfu *f_dfu = req->context;  in dnload_request_complete()  local
160 	ret = dfu_write(dfu_get_entity(f_dfu->altsetting), req->buf,  in dnload_request_complete()
161 			req->actual, f_dfu->blk_seq_num);  in dnload_request_complete()
163 		f_dfu->dfu_status = DFU_STATUS_errUNKNOWN;  in dnload_request_complete()
164 		f_dfu->dfu_state = DFU_STATE_dfuERROR;  in dnload_request_complete()
170 	struct f_dfu *f_dfu = req->context;  in dnload_request_flush()  local
171 	dfu_set_defer_flush(dfu_get_entity(f_dfu->altsetting));  in dnload_request_flush()
183 	struct f_dfu *f_dfu = req->context;  in handle_getstatus()  local
184 	struct dfu_entity *dfu = dfu_get_entity(f_dfu->altsetting);  in handle_getstatus()
188 	switch (f_dfu->dfu_state) {  in handle_getstatus()
191 		f_dfu->dfu_state = DFU_STATE_dfuDNLOAD_IDLE;  in handle_getstatus()
194 		f_dfu->dfu_state = DFU_STATE_dfuMANIFEST;  in handle_getstatus()
203 	if (f_dfu->poll_timeout)  in handle_getstatus()
204 		if (!(f_dfu->blk_seq_num %  in handle_getstatus()
206 			dfu_set_poll_timeout(dstat, f_dfu->poll_timeout);  in handle_getstatus()
209 	dstat->bStatus = f_dfu->dfu_status;  in handle_getstatus()
210 	dstat->bState = f_dfu->dfu_state;  in handle_getstatus()
218 	struct f_dfu *f_dfu = req->context;  in handle_getstate()  local
220 	((u8 *)req->buf)[0] = f_dfu->dfu_state;  in handle_getstate()
224 static inline void to_dfu_mode(struct f_dfu *f_dfu)  in to_dfu_mode()  argument
226 	f_dfu->usb_function.strings = dfu_strings;  in to_dfu_mode()
227 	f_dfu->usb_function.hs_descriptors = f_dfu->function;  in to_dfu_mode()
228 	f_dfu->usb_function.descriptors = f_dfu->function;  in to_dfu_mode()
229 	f_dfu->dfu_state = DFU_STATE_dfuIDLE;  in to_dfu_mode()
232 static inline void to_runtime_mode(struct f_dfu *f_dfu)  in to_runtime_mode()  argument
234 	f_dfu->usb_function.strings = NULL;  in to_runtime_mode()
235 	f_dfu->usb_function.hs_descriptors = dfu_runtime_descs;  in to_runtime_mode()
236 	f_dfu->usb_function.descriptors = dfu_runtime_descs;  in to_runtime_mode()
241 	struct f_dfu *f_dfu = req->context;  in handle_upload()  local
243 	return dfu_read(dfu_get_entity(f_dfu->altsetting), req->buf,  in handle_upload()
244 			req->length, f_dfu->blk_seq_num);  in handle_upload()
251 	struct f_dfu *f_dfu = req->context;  in handle_dnload()  local
254 		f_dfu->dfu_state = DFU_STATE_dfuMANIFEST_SYNC;  in handle_dnload()
263 static int state_app_idle(struct f_dfu *f_dfu,  in state_app_idle()  argument
278 		f_dfu->dfu_state = DFU_STATE_appDETACH;  in state_app_idle()
279 		to_dfu_mode(f_dfu);  in state_app_idle()
290 static int state_app_detach(struct f_dfu *f_dfu,  in state_app_detach()  argument
305 		f_dfu->dfu_state = DFU_STATE_appIDLE;  in state_app_detach()
313 static int state_dfu_idle(struct f_dfu *f_dfu,  in state_dfu_idle()  argument
325 			f_dfu->dfu_state = DFU_STATE_dfuERROR;  in state_dfu_idle()
329 		f_dfu->dfu_state = DFU_STATE_dfuDNLOAD_SYNC;  in state_dfu_idle()
330 		f_dfu->blk_seq_num = w_value;  in state_dfu_idle()
334 		f_dfu->dfu_state = DFU_STATE_dfuUPLOAD_IDLE;  in state_dfu_idle()
335 		f_dfu->blk_seq_num = 0;  in state_dfu_idle()
357 		f_dfu->dfu_state =  in state_dfu_idle()
359 		to_runtime_mode(f_dfu);  in state_dfu_idle()
360 		f_dfu->dfu_state = DFU_STATE_appIDLE;  in state_dfu_idle()
365 		f_dfu->dfu_state = DFU_STATE_dfuERROR;  in state_dfu_idle()
373 static int state_dfu_dnload_sync(struct f_dfu *f_dfu,  in state_dfu_dnload_sync()  argument
388 		f_dfu->dfu_state = DFU_STATE_dfuERROR;  in state_dfu_dnload_sync()
396 static int state_dfu_dnbusy(struct f_dfu *f_dfu,  in state_dfu_dnbusy()  argument
408 		f_dfu->dfu_state = DFU_STATE_dfuERROR;  in state_dfu_dnbusy()
416 static int state_dfu_dnload_idle(struct f_dfu *f_dfu,  in state_dfu_dnload_idle()  argument
427 		f_dfu->dfu_state = DFU_STATE_dfuDNLOAD_SYNC;  in state_dfu_dnload_idle()
428 		f_dfu->blk_seq_num = w_value;  in state_dfu_dnload_idle()
432 		f_dfu->dfu_state = DFU_STATE_dfuIDLE;  in state_dfu_dnload_idle()
442 		f_dfu->dfu_state = DFU_STATE_dfuERROR;  in state_dfu_dnload_idle()
450 static int state_dfu_manifest_sync(struct f_dfu *f_dfu,  in state_dfu_manifest_sync()  argument
460 		f_dfu->dfu_state = DFU_STATE_dfuMANIFEST;  in state_dfu_manifest_sync()
462 		f_dfu->blk_seq_num = 0;  in state_dfu_manifest_sync()
469 		f_dfu->dfu_state = DFU_STATE_dfuERROR;  in state_dfu_manifest_sync()
477 static int state_dfu_manifest(struct f_dfu *f_dfu,  in state_dfu_manifest()  argument
487 		f_dfu->dfu_state = DFU_STATE_dfuIDLE;  in state_dfu_manifest()
489 		f_dfu->blk_seq_num = 0;  in state_dfu_manifest()
496 		f_dfu->dfu_state = DFU_STATE_dfuERROR;  in state_dfu_manifest()
503 static int state_dfu_upload_idle(struct f_dfu *f_dfu,  in state_dfu_upload_idle()  argument
515 		f_dfu->blk_seq_num = w_value;  in state_dfu_upload_idle()
518 			f_dfu->dfu_state = DFU_STATE_dfuIDLE;  in state_dfu_upload_idle()
521 		f_dfu->dfu_state = DFU_STATE_dfuIDLE;  in state_dfu_upload_idle()
532 		f_dfu->dfu_state = DFU_STATE_dfuERROR;  in state_dfu_upload_idle()
540 static int state_dfu_error(struct f_dfu *f_dfu,  in state_dfu_error()  argument
555 		f_dfu->dfu_state = DFU_STATE_dfuIDLE;  in state_dfu_error()
556 		f_dfu->dfu_status = DFU_STATUS_OK;  in state_dfu_error()
561 		f_dfu->dfu_state = DFU_STATE_dfuERROR;  in state_dfu_error()
588 	struct f_dfu *f_dfu = f->config->cdev->req->context;  in dfu_handle()  local
596 	       req_type, ctrl->bRequest, f_dfu->dfu_state);  in dfu_handle()
605 		value = dfu_state[f_dfu->dfu_state] (f_dfu, ctrl, gadget, req);  in dfu_handle()
623 dfu_prepare_strings(struct f_dfu *f_dfu, int n)  in dfu_prepare_strings()  argument
628 	f_dfu->strings = calloc(sizeof(struct usb_string), n + 1);  in dfu_prepare_strings()
629 	if (!f_dfu->strings)  in dfu_prepare_strings()
634 		f_dfu->strings[i].s = de->name;  in dfu_prepare_strings()
637 	f_dfu->strings[i].id = 0;  in dfu_prepare_strings()
638 	f_dfu->strings[i].s = NULL;  in dfu_prepare_strings()
643 static int dfu_prepare_function(struct f_dfu *f_dfu, int n)  in dfu_prepare_function()  argument
648 	f_dfu->function = calloc(sizeof(struct usb_descriptor_header *), n + 2);  in dfu_prepare_function()
649 	if (!f_dfu->function)  in dfu_prepare_function()
665 		f_dfu->function[i] = (struct usb_descriptor_header *)d;  in dfu_prepare_function()
669 	f_dfu->function[i] = calloc(sizeof(dfu_func), 1);  in dfu_prepare_function()
670 	if (!f_dfu->function[i])  in dfu_prepare_function()
672 	memcpy(f_dfu->function[i], &dfu_func, sizeof(dfu_func));  in dfu_prepare_function()
675 	f_dfu->function[i] = NULL;  in dfu_prepare_function()
681 		free(f_dfu->function[--i]);  in dfu_prepare_function()
682 		f_dfu->function[i] = NULL;  in dfu_prepare_function()
684 	free(f_dfu->function);  in dfu_prepare_function()
692 	struct f_dfu *f_dfu = func_to_dfu(f);  in dfu_bind()  local
702 	f_dfu->dfu_state = DFU_STATE_appIDLE;  in dfu_bind()
703 	f_dfu->dfu_status = DFU_STATUS_OK;  in dfu_bind()
705 	rv = dfu_prepare_function(f_dfu, alt_num);  in dfu_bind()
709 	rv = dfu_prepare_strings(f_dfu, alt_num);  in dfu_bind()
716 		f_dfu->strings[i].id = id;  in dfu_bind()
717 		((struct usb_interface_descriptor *)f_dfu->function[i])  in dfu_bind()
721 	to_dfu_mode(f_dfu);  in dfu_bind()
723 	stringtab_dfu.strings = f_dfu->strings;  in dfu_bind()
725 	cdev->req->context = f_dfu;  in dfu_bind()
737 	struct f_dfu *f_dfu = func_to_dfu(f);  in dfu_unbind()  local
741 	if (f_dfu->strings) {  in dfu_unbind()
744 			f_dfu->strings[--i].s = NULL;  in dfu_unbind()
746 		free(f_dfu->strings);  in dfu_unbind()
749 	if (f_dfu->function) {  in dfu_unbind()
752 			free(f_dfu->function[--i]);  in dfu_unbind()
753 			f_dfu->function[i] = NULL;  in dfu_unbind()
755 		free(f_dfu->function);  in dfu_unbind()
758 	free(f_dfu);  in dfu_unbind()
763 	struct f_dfu *f_dfu = func_to_dfu(f);  in dfu_set_alt()  local
767 	f_dfu->altsetting = alt;  in dfu_set_alt()
768 	f_dfu->dfu_state = DFU_STATE_dfuIDLE;  in dfu_set_alt()
769 	f_dfu->dfu_status = DFU_STATUS_OK;  in dfu_set_alt()
776 	struct f_dfu *f_dfu = func_to_dfu(f);  in __dfu_get_alt()  local
778 	return f_dfu->altsetting;  in __dfu_get_alt()
784 	struct f_dfu *f_dfu = func_to_dfu(f);  in dfu_disable()  local
785 	if (f_dfu->config == 0)  in dfu_disable()
790 	f_dfu->config = 0;  in dfu_disable()
795 	struct f_dfu *f_dfu;  in dfu_bind_config()  local
798 	f_dfu = calloc(sizeof(*f_dfu), 1);  in dfu_bind_config()
799 	if (!f_dfu)  in dfu_bind_config()
801 	f_dfu->usb_function.name = "dfu";  in dfu_bind_config()
802 	f_dfu->usb_function.hs_descriptors = dfu_runtime_descs;  in dfu_bind_config()
803 	f_dfu->usb_function.descriptors = dfu_runtime_descs;  in dfu_bind_config()
804 	f_dfu->usb_function.bind = dfu_bind;  in dfu_bind_config()
805 	f_dfu->usb_function.unbind = dfu_unbind;  in dfu_bind_config()
806 	f_dfu->usb_function.set_alt = dfu_set_alt;  in dfu_bind_config()
807 	f_dfu->usb_function.get_alt = __dfu_get_alt;  in dfu_bind_config()
808 	f_dfu->usb_function.disable = dfu_disable;  in dfu_bind_config()
809 	f_dfu->usb_function.strings = dfu_generic_strings;  in dfu_bind_config()
810 	f_dfu->usb_function.setup = dfu_handle;  in dfu_bind_config()
811 	f_dfu->poll_timeout = DFU_DEFAULT_POLL_TIMEOUT;  in dfu_bind_config()
813 	status = usb_add_function(c, &f_dfu->usb_function);  in dfu_bind_config()
815 		free(f_dfu);  in dfu_bind_config()