87 static int macii_send_request(struct adb_request *req, int sync);
88 static int macii_write(struct adb_request *req);
124 static int request_is_queued(struct adb_request *req) {  in request_is_queued()  argument
130 		if (cur == req) {  in request_is_queued()
206 	static struct adb_request req;  in macii_queue_poll()  local
216 	BUG_ON(request_is_queued(&req));  in macii_queue_poll()
218 	adb_request(&req, NULL, ADBREQ_NOSEND, 1,  in macii_queue_poll()
221 	req.sent = 0;  in macii_queue_poll()
222 	req.complete = 0;  in macii_queue_poll()
223 	req.reply_len = 0;  in macii_queue_poll()
224 	req.next = current_req;  in macii_queue_poll()
227 		current_req = &req;  in macii_queue_poll()
229 		current_req = &req;  in macii_queue_poll()
230 		last_req = &req;  in macii_queue_poll()
235 static int macii_send_request(struct adb_request *req, int sync)  in macii_send_request()  argument
240 	BUG_ON(request_is_queued(req));  in macii_send_request()
243 	err = macii_write(req);  in macii_send_request()
247 		while (!req->complete) {  in macii_send_request()
250 		BUG_ON(request_is_queued(req));  in macii_send_request()
257 static int macii_write(struct adb_request *req)  in macii_write()  argument
259 	if (req->nbytes < 2 || req->data[0] != ADB_PACKET || req->nbytes > 15) {  in macii_write()
260 		req->complete = 1;  in macii_write()
264 	req->next = NULL;  in macii_write()
265 	req->sent = 0;  in macii_write()
266 	req->complete = 0;  in macii_write()
267 	req->reply_len = 0;  in macii_write()
270 		last_req->next = req;  in macii_write()
271 		last_req = req;  in macii_write()
273 		current_req = req;  in macii_write()
274 		last_req = req;  in macii_write()
283 	static struct adb_request req;  in macii_autopoll()  local
298 		adb_request(&req, NULL, ADBREQ_NOSEND, 1,  in macii_autopoll()
300 		err = macii_write(&req);  in macii_autopoll()
328 	static struct adb_request req;  in macii_reset_bus()  local
330 	if (request_is_queued(&req))  in macii_reset_bus()
334 	adb_request(&req, NULL, 0, 1, ADB_BUSRESET);  in macii_reset_bus()
345 	struct adb_request *req;  in macii_start()  local
347 	req = current_req;  in macii_start()
349 	BUG_ON(req == NULL);  in macii_start()
359 	command_byte = req->data[1];  in macii_start()
363 	via[SR] = req->data[1];  in macii_start()
391 	struct adb_request *req;  in macii_interrupt()  local
435 			req = current_req;  in macii_interrupt()
436 			if (data_index >= req->nbytes) {  in macii_interrupt()
437 				req->sent = 1;  in macii_interrupt()
440 				if (req->reply_expected) {  in macii_interrupt()
443 					req->complete = 1;  in macii_interrupt()
444 					current_req = req->next;  in macii_interrupt()
445 					if (req->done) (*req->done)(req);  in macii_interrupt()
462 				via[SR] = req->data[data_index++];  in macii_interrupt()
520 				req = current_req;  in macii_interrupt()
521 				req->reply_len = reply_len;  in macii_interrupt()
522 				req->complete = 1;  in macii_interrupt()
523 				current_req = req->next;  in macii_interrupt()
524 				if (req->done) (*req->done)(req);  in macii_interrupt()