12 static int saa7164_cmd_alloc_seqno(struct saa7164_dev *dev)  in saa7164_cmd_alloc_seqno()  argument
16 	mutex_lock(&dev->lock);  in saa7164_cmd_alloc_seqno()
18 		if (dev->cmds[i].inuse == 0) {  in saa7164_cmd_alloc_seqno()
19 			dev->cmds[i].inuse = 1;  in saa7164_cmd_alloc_seqno()
20 			dev->cmds[i].signalled = 0;  in saa7164_cmd_alloc_seqno()
21 			dev->cmds[i].timeout = 0;  in saa7164_cmd_alloc_seqno()
22 			ret = dev->cmds[i].seqno;  in saa7164_cmd_alloc_seqno()
26 	mutex_unlock(&dev->lock);  in saa7164_cmd_alloc_seqno()
31 static void saa7164_cmd_free_seqno(struct saa7164_dev *dev, u8 seqno)  in saa7164_cmd_free_seqno()  argument
33 	mutex_lock(&dev->lock);  in saa7164_cmd_free_seqno()
34 	if ((dev->cmds[seqno].inuse == 1) &&  in saa7164_cmd_free_seqno()
35 		(dev->cmds[seqno].seqno == seqno)) {  in saa7164_cmd_free_seqno()
36 		dev->cmds[seqno].inuse = 0;  in saa7164_cmd_free_seqno()
37 		dev->cmds[seqno].signalled = 0;  in saa7164_cmd_free_seqno()
38 		dev->cmds[seqno].timeout = 0;  in saa7164_cmd_free_seqno()
40 	mutex_unlock(&dev->lock);  in saa7164_cmd_free_seqno()
43 static void saa7164_cmd_timeout_seqno(struct saa7164_dev *dev, u8 seqno)  in saa7164_cmd_timeout_seqno()  argument
45 	mutex_lock(&dev->lock);  in saa7164_cmd_timeout_seqno()
46 	if ((dev->cmds[seqno].inuse == 1) &&  in saa7164_cmd_timeout_seqno()
47 		(dev->cmds[seqno].seqno == seqno)) {  in saa7164_cmd_timeout_seqno()
48 		dev->cmds[seqno].timeout = 1;  in saa7164_cmd_timeout_seqno()
50 	mutex_unlock(&dev->lock);  in saa7164_cmd_timeout_seqno()
53 static u32 saa7164_cmd_timeout_get(struct saa7164_dev *dev, u8 seqno)  in saa7164_cmd_timeout_get()  argument
57 	mutex_lock(&dev->lock);  in saa7164_cmd_timeout_get()
58 	if ((dev->cmds[seqno].inuse == 1) &&  in saa7164_cmd_timeout_get()
59 		(dev->cmds[seqno].seqno == seqno)) {  in saa7164_cmd_timeout_get()
60 		ret = dev->cmds[seqno].timeout;  in saa7164_cmd_timeout_get()
62 	mutex_unlock(&dev->lock);  in saa7164_cmd_timeout_get()
69 int saa7164_irq_dequeue(struct saa7164_dev *dev)  in saa7164_irq_dequeue()  argument
82 		ret = saa7164_bus_get(dev, &tRsp, NULL, 1);  in saa7164_irq_dequeue()
86 		q = &dev->cmds[tRsp.seqno].wait;  in saa7164_irq_dequeue()
87 		timeout = saa7164_cmd_timeout_get(dev, tRsp.seqno);  in saa7164_irq_dequeue()
93 			dev->cmds[tRsp.seqno].signalled = 1;  in saa7164_irq_dequeue()
101 			ret = saa7164_bus_get(dev, &tRsp, &tmp, 0);  in saa7164_irq_dequeue()
121 static int saa7164_cmd_dequeue(struct saa7164_dev *dev)  in saa7164_cmd_dequeue()  argument
132 		ret = saa7164_bus_get(dev, &tRsp, NULL, 1);  in saa7164_cmd_dequeue()
139 		q = &dev->cmds[tRsp.seqno].wait;  in saa7164_cmd_dequeue()
140 		timeout = saa7164_cmd_timeout_get(dev, tRsp.seqno);  in saa7164_cmd_dequeue()
146 			ret = saa7164_bus_get(dev, &tRsp, &tmp, 0);  in saa7164_cmd_dequeue()
158 				saa7164_cmd_free_seqno(dev, tRsp.seqno);  in saa7164_cmd_dequeue()
166 		dev->cmds[tRsp.seqno].signalled = 1;  in saa7164_cmd_dequeue()
172 static int saa7164_cmd_set(struct saa7164_dev *dev, struct tmComResInfo *msg,  in saa7164_cmd_set()  argument
175 	struct tmComResBusInfo *bus = &dev->bus;  in saa7164_cmd_set()
187 	mutex_lock(&dev->cmds[msg->id].lock);  in saa7164_cmd_set()
203 		ret = saa7164_bus_set(dev, msg, tmp);  in saa7164_cmd_set()
223 	ret = saa7164_bus_set(dev, msg, buf + idx * bus->m_wMaxReqSize);  in saa7164_cmd_set()
237 	mutex_unlock(&dev->cmds[msg->id].lock);  in saa7164_cmd_set()
244 static int saa7164_cmd_wait(struct saa7164_dev *dev, u8 seqno)  in saa7164_cmd_wait()  argument
252 		saa7164_bus_dump(dev);  in saa7164_cmd_wait()
256 	mutex_lock(&dev->lock);  in saa7164_cmd_wait()
257 	if ((dev->cmds[seqno].inuse == 1) &&  in saa7164_cmd_wait()
258 		(dev->cmds[seqno].seqno == seqno)) {  in saa7164_cmd_wait()
259 		q = &dev->cmds[seqno].wait;  in saa7164_cmd_wait()
261 	mutex_unlock(&dev->lock);  in saa7164_cmd_wait()
265 		if (dev->cmds[seqno].signalled == 0) {  in saa7164_cmd_wait()
269 				__func__, seqno, dev->cmds[seqno].signalled);  in saa7164_cmd_wait()
278 			wait_event_timeout(*q, dev->cmds[seqno].signalled,  in saa7164_cmd_wait()
284 				saa7164_cmd_timeout_seqno(dev, seqno);  in saa7164_cmd_wait()
288 				dev->cmds[seqno].signalled);  in saa7164_cmd_wait()
298 void saa7164_cmd_signal(struct saa7164_dev *dev, u8 seqno)  in saa7164_cmd_signal()  argument
303 	mutex_lock(&dev->lock);  in saa7164_cmd_signal()
305 		if (dev->cmds[i].inuse == 1) {  in saa7164_cmd_signal()
308 				dev->cmds[i].seqno,  in saa7164_cmd_signal()
309 				dev->cmds[i].signalled,  in saa7164_cmd_signal()
310 				dev->cmds[i].timeout);  in saa7164_cmd_signal()
315 		if ((dev->cmds[i].inuse == 1) && ((i == 0) ||  in saa7164_cmd_signal()
316 			(dev->cmds[i].signalled) || (dev->cmds[i].timeout))) {  in saa7164_cmd_signal()
319 			dev->cmds[i].signalled = 1;  in saa7164_cmd_signal()
320 			wake_up(&dev->cmds[i].wait);  in saa7164_cmd_signal()
323 	mutex_unlock(&dev->lock);  in saa7164_cmd_signal()
326 int saa7164_cmd_send(struct saa7164_dev *dev, u8 id, enum tmComResCmd command,  in saa7164_cmd_send()  argument
339 		__func__, saa7164_unitid_name(dev, id), id,  in saa7164_cmd_send()
358 	ret = saa7164_cmd_alloc_seqno(dev);  in saa7164_cmd_send()
377 	ret = saa7164_cmd_set(dev, pcommand_t, buf);  in saa7164_cmd_send()
382 			saa7164_cmd_free_seqno(dev, pcommand_t->seqno);  in saa7164_cmd_send()
386 			saa7164_cmd_timeout_seqno(dev, pcommand_t->seqno);  in saa7164_cmd_send()
397 		ret = saa7164_cmd_wait(dev, pcommand_t->seqno);  in saa7164_cmd_send()
404 			saa7164_cmd_timeout_seqno(dev, pcommand_t->seqno);  in saa7164_cmd_send()
414 		ret = saa7164_bus_get(dev, presponse_t, NULL, 1);  in saa7164_cmd_send()
440 			ret = saa7164_cmd_dequeue(dev);  in saa7164_cmd_send()
458 			ret = saa7164_bus_get(dev, presponse_t, &errdata[0], 0);  in saa7164_cmd_send()
464 			saa7164_cmd_free_seqno(dev, pcommand_t->seqno);  in saa7164_cmd_send()
506 			if (saa7164_cmd_dequeue(dev) != SAA_OK)  in saa7164_cmd_send()
523 			ret = saa7164_bus_get(dev, presponse_t, NULL, 0);  in saa7164_cmd_send()
530 			if (saa7164_cmd_dequeue(dev) != SAA_OK)  in saa7164_cmd_send()
536 		ret = saa7164_bus_get(dev, presponse_t, buf + data_recd, 0);  in saa7164_cmd_send()
549 		if (saa7164_cmd_dequeue(dev) != SAA_OK)  in saa7164_cmd_send()
554 	saa7164_cmd_free_seqno(dev, pcommand_t->seqno);  in saa7164_cmd_send()
561 	if (saa7164_cmd_dequeue(dev) != SAA_OK)  in saa7164_cmd_send()