gadget/legacy/dbgp.c

3  * dbgp.c -- EHCI Debug Port device gadget
26 static struct dbgp {
34 } dbgp;
88 	__disable_ep(dbgp.i_ep);
89 	__disable_ep(dbgp.o_ep);
98 	if (ep == dbgp.i_ep) {
121 	usb_ep_free_request(dbgp.o_ep, req);
124 	dev_dbg(&dbgp.gadget->dev,
160 	usb_ep_free_request(dbgp.o_ep, req);
162 	dev_dbg(&dbgp.gadget->dev,
179 	err = __enable_ep(dbgp.i_ep, &i_desc);
185 	err = __enable_ep(dbgp.o_ep, &o_desc);
191 	err = dbgp_enable_ep_req(dbgp.o_ep);
200 	__disable_ep(dbgp.o_ep);
202 	__disable_ep(dbgp.i_ep);
204 	dev_dbg(&dbgp.gadget->dev, "enable ep: failure (%d:%d)\n", stp, err);
214 	gserial_disconnect(dbgp.serial);
221 	kfree(dbgp.serial);
222 	dbgp.serial = NULL;
224 	if (dbgp.req) {
225 		kfree(dbgp.req->buf);
226 		usb_ep_free_request(gadget->ep0, dbgp.req);
227 		dbgp.req = NULL;
241 	dbgp.i_ep = usb_ep_autoconfig(gadget, &i_desc);
242 	if (!dbgp.i_ep) {
250 	dbgp.o_ep = usb_ep_autoconfig(gadget, &o_desc);
251 	if (!dbgp.o_ep) {
263 	dbgp.serial->in = dbgp.i_ep;
264 	dbgp.serial->out = dbgp.o_ep;
266 	dbgp.serial->in->desc = &i_desc;
267 	dbgp.serial->out->desc = &o_desc;
273 	dev_dbg(&dbgp.gadget->dev, "ep config: failure (%d)\n", stp);
282 	dbgp.gadget = gadget;
284 	dbgp.req = usb_ep_alloc_request(gadget->ep0, GFP_KERNEL);
285 	if (!dbgp.req) {
291 	dbgp.req->buf = kmalloc(DBGP_REQ_EP0_LEN, GFP_KERNEL);
292 	if (!dbgp.req->buf) {
298 	dbgp.req->length = DBGP_REQ_EP0_LEN;
301 	dbgp.serial = kzalloc(sizeof(struct gserial), GFP_KERNEL);
302 	if (!dbgp.serial) {
321 	dev_dbg(&dbgp.gadget->dev, "bind: success\n");
333 	dev_dbg(&dbgp.gadget->dev, "setup complete: %d, %d/%d\n",
340 	struct usb_request *req = dbgp.req;
364 			dev_dbg(&dbgp.gadget->dev, "setup: desc device\n");
370 			dev_dbg(&dbgp.gadget->dev, "setup: desc debug\n");
380 		dev_dbg(&dbgp.gadget->dev, "setup: feat debug\n");
388 		err = gserial_connect(dbgp.serial, tty_line);
404 	dev_dbg(&dbgp.gadget->dev,
410 	.function = "dbgp",
419 		.name = "dbgp"