86 static int macii_send_request(struct adb_request *req, int sync);
87 static int macii_write(struct adb_request *req);
123 static int request_is_queued(struct adb_request *req) {  in request_is_queued()  argument
129 		if (cur == req) {  in request_is_queued()
205 	static struct adb_request req;  in macii_queue_poll()  local
215 	BUG_ON(request_is_queued(&req));  in macii_queue_poll()
217 	adb_request(&req, NULL, ADBREQ_NOSEND, 1,  in macii_queue_poll()
220 	req.sent = 0;  in macii_queue_poll()
221 	req.complete = 0;  in macii_queue_poll()
222 	req.reply_len = 0;  in macii_queue_poll()
223 	req.next = current_req;  in macii_queue_poll()
226 		current_req = &req;  in macii_queue_poll()
228 		current_req = &req;  in macii_queue_poll()
229 		last_req = &req;  in macii_queue_poll()
234 static int macii_send_request(struct adb_request *req, int sync)  in macii_send_request()  argument
239 	BUG_ON(request_is_queued(req));  in macii_send_request()
242 	err = macii_write(req);  in macii_send_request()
246 		while (!req->complete) {  in macii_send_request()
249 		BUG_ON(request_is_queued(req));  in macii_send_request()
256 static int macii_write(struct adb_request *req)  in macii_write()  argument
258 	if (req->nbytes < 2 || req->data[0] != ADB_PACKET || req->nbytes > 15) {  in macii_write()
259 		req->complete = 1;  in macii_write()
263 	req->next = NULL;  in macii_write()
264 	req->sent = 0;  in macii_write()
265 	req->complete = 0;  in macii_write()
266 	req->reply_len = 0;  in macii_write()
269 		last_req->next = req;  in macii_write()
270 		last_req = req;  in macii_write()
272 		current_req = req;  in macii_write()
273 		last_req = req;  in macii_write()
282 	static struct adb_request req;  in macii_autopoll()  local
297 		adb_request(&req, NULL, ADBREQ_NOSEND, 1,  in macii_autopoll()
299 		err = macii_write(&req);  in macii_autopoll()
327 	static struct adb_request req;  in macii_reset_bus()  local
329 	if (request_is_queued(&req))  in macii_reset_bus()
333 	adb_request(&req, NULL, 0, 1, ADB_BUSRESET);  in macii_reset_bus()
344 	struct adb_request *req;  in macii_start()  local
346 	req = current_req;  in macii_start()
348 	BUG_ON(req == NULL);  in macii_start()
358 	command_byte = req->data[1];  in macii_start()
362 	via[SR] = req->data[1];  in macii_start()
390 	struct adb_request *req;  in macii_interrupt()  local
434 			req = current_req;  in macii_interrupt()
435 			if (data_index >= req->nbytes) {  in macii_interrupt()
436 				req->sent = 1;  in macii_interrupt()
439 				if (req->reply_expected) {  in macii_interrupt()
442 					req->complete = 1;  in macii_interrupt()
443 					current_req = req->next;  in macii_interrupt()
444 					if (req->done) (*req->done)(req);  in macii_interrupt()
461 				via[SR] = req->data[data_index++];  in macii_interrupt()
519 				req = current_req;  in macii_interrupt()
520 				req->reply_len = reply_len;  in macii_interrupt()
521 				req->complete = 1;  in macii_interrupt()
522 				current_req = req->next;  in macii_interrupt()
523 				if (req->done) (*req->done)(req);  in macii_interrupt()