cx18-mailbox.c revision 72a4f8081af1c53a1673c173ce0fdd85c4b7d403
1/*
2 *  cx18 mailbox functions
3 *
4 *  Copyright (C) 2007  Hans Verkuil <hverkuil@xs4all.nl>
5 *
6 *  This program is free software; you can redistribute it and/or modify
7 *  it under the terms of the GNU General Public License as published by
8 *  the Free Software Foundation; either version 2 of the License, or
9 *  (at your option) any later version.
10 *
11 *  This program is distributed in the hope that it will be useful,
12 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
13 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14 *  GNU General Public License for more details.
15 *
16 *  You should have received a copy of the GNU General Public License
17 *  along with this program; if not, write to the Free Software
18 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
19 *  02111-1307  USA
20 */
21
22#include <stdarg.h>
23
24#include "cx18-driver.h"
25#include "cx18-io.h"
26#include "cx18-scb.h"
27#include "cx18-irq.h"
28#include "cx18-mailbox.h"
29#include "cx18-queue.h"
30#include "cx18-streams.h"
31
32static const char *rpu_str[] = { "APU", "CPU", "EPU", "HPU" };
33
34#define API_FAST (1 << 2) /* Short timeout */
35#define API_SLOW (1 << 3) /* Additional 300ms timeout */
36
37struct cx18_api_info {
38	u32 cmd;
39	u8 flags;		/* Flags, see above */
40	u8 rpu;			/* Processing unit */
41	const char *name; 	/* The name of the command */
42};
43
44#define API_ENTRY(rpu, x, f) { (x), (f), (rpu), #x }
45
46static const struct cx18_api_info api_info[] = {
47	/* MPEG encoder API */
48	API_ENTRY(CPU, CX18_CPU_SET_CHANNEL_TYPE,		0),
49	API_ENTRY(CPU, CX18_EPU_DEBUG, 				0),
50	API_ENTRY(CPU, CX18_CREATE_TASK, 			0),
51	API_ENTRY(CPU, CX18_DESTROY_TASK, 			0),
52	API_ENTRY(CPU, CX18_CPU_CAPTURE_START,                  API_SLOW),
53	API_ENTRY(CPU, CX18_CPU_CAPTURE_STOP,                   API_SLOW),
54	API_ENTRY(CPU, CX18_CPU_CAPTURE_PAUSE,                  0),
55	API_ENTRY(CPU, CX18_CPU_CAPTURE_RESUME,                 0),
56	API_ENTRY(CPU, CX18_CPU_SET_CHANNEL_TYPE,               0),
57	API_ENTRY(CPU, CX18_CPU_SET_STREAM_OUTPUT_TYPE,         0),
58	API_ENTRY(CPU, CX18_CPU_SET_VIDEO_IN,                   0),
59	API_ENTRY(CPU, CX18_CPU_SET_VIDEO_RATE,                 0),
60	API_ENTRY(CPU, CX18_CPU_SET_VIDEO_RESOLUTION,           0),
61	API_ENTRY(CPU, CX18_CPU_SET_FILTER_PARAM,               0),
62	API_ENTRY(CPU, CX18_CPU_SET_SPATIAL_FILTER_TYPE,        0),
63	API_ENTRY(CPU, CX18_CPU_SET_MEDIAN_CORING,              0),
64	API_ENTRY(CPU, CX18_CPU_SET_INDEXTABLE,                 0),
65	API_ENTRY(CPU, CX18_CPU_SET_AUDIO_PARAMETERS,           0),
66	API_ENTRY(CPU, CX18_CPU_SET_VIDEO_MUTE,                 0),
67	API_ENTRY(CPU, CX18_CPU_SET_AUDIO_MUTE,                 0),
68	API_ENTRY(CPU, CX18_CPU_SET_MISC_PARAMETERS,            0),
69	API_ENTRY(CPU, CX18_CPU_SET_RAW_VBI_PARAM,              API_SLOW),
70	API_ENTRY(CPU, CX18_CPU_SET_CAPTURE_LINE_NO,            0),
71	API_ENTRY(CPU, CX18_CPU_SET_COPYRIGHT,                  0),
72	API_ENTRY(CPU, CX18_CPU_SET_AUDIO_PID,                  0),
73	API_ENTRY(CPU, CX18_CPU_SET_VIDEO_PID,                  0),
74	API_ENTRY(CPU, CX18_CPU_SET_VER_CROP_LINE,              0),
75	API_ENTRY(CPU, CX18_CPU_SET_GOP_STRUCTURE,              0),
76	API_ENTRY(CPU, CX18_CPU_SET_SCENE_CHANGE_DETECTION,     0),
77	API_ENTRY(CPU, CX18_CPU_SET_ASPECT_RATIO,               0),
78	API_ENTRY(CPU, CX18_CPU_SET_SKIP_INPUT_FRAME,           0),
79	API_ENTRY(CPU, CX18_CPU_SET_SLICED_VBI_PARAM,           0),
80	API_ENTRY(CPU, CX18_CPU_SET_USERDATA_PLACE_HOLDER,      0),
81	API_ENTRY(CPU, CX18_CPU_GET_ENC_PTS,                    0),
82	API_ENTRY(CPU, CX18_CPU_DE_SET_MDL_ACK,			0),
83	API_ENTRY(CPU, CX18_CPU_DE_SET_MDL,			API_FAST),
84	API_ENTRY(CPU, CX18_APU_RESETAI,			API_FAST),
85	API_ENTRY(CPU, CX18_CPU_DE_RELEASE_MDL,			API_SLOW),
86	API_ENTRY(0, 0,						0),
87};
88
89static const struct cx18_api_info *find_api_info(u32 cmd)
90{
91	int i;
92
93	for (i = 0; api_info[i].cmd; i++)
94		if (api_info[i].cmd == cmd)
95			return &api_info[i];
96	return NULL;
97}
98
99static void dump_mb(struct cx18 *cx, struct cx18_mailbox *mb, char *name)
100{
101	char argstr[MAX_MB_ARGUMENTS*11+1];
102	char *p;
103	int i;
104
105	if (!(cx18_debug & CX18_DBGFLG_API))
106		return;
107
108	for (i = 0, p = argstr; i < MAX_MB_ARGUMENTS; i++, p += 11) {
109		/* kernel snprintf() appends '\0' always */
110		snprintf(p, 12, " %#010x", mb->args[i]);
111	}
112	CX18_DEBUG_API("%s: req %#010x ack %#010x cmd %#010x err %#010x args%s"
113		"\n", name, mb->request, mb->ack, mb->cmd, mb->error, argstr);
114}
115
116
117/*
118 * Functions that run in a work_queue work handling context
119 */
120
121static void epu_dma_done(struct cx18 *cx, struct cx18_epu_work_order *order)
122{
123	u32 handle, mdl_ack_count;
124	struct cx18_mailbox *mb;
125	struct cx18_mdl_ack *mdl_ack;
126	struct cx18_stream *s;
127	struct cx18_buffer *buf;
128	int i;
129
130	mb = &order->mb;
131	handle = mb->args[0];
132	s = cx18_handle_to_stream(cx, handle);
133
134	if (s == NULL) {
135		CX18_WARN("Got DMA done notification for unknown/inactive"
136			  " handle %d\n", handle);
137		return;
138	}
139
140	mdl_ack_count = mb->args[2];
141	mdl_ack = order->mdl_ack;
142	for (i = 0; i < mdl_ack_count; i++, mdl_ack++) {
143		buf = cx18_queue_get_buf(s, mdl_ack->id, mdl_ack->data_used);
144		CX18_DEBUG_HI_DMA("DMA DONE for %s (buffer %d)\n", s->name,
145				  mdl_ack->id);
146		if (buf == NULL) {
147			CX18_WARN("Could not find buf %d for stream %s\n",
148				  mdl_ack->id, s->name);
149			continue;
150		}
151
152		cx18_buf_sync_for_cpu(s, buf);
153		if (s->type == CX18_ENC_STREAM_TYPE_TS && s->dvb.enabled) {
154			CX18_DEBUG_HI_DMA("TS recv bytesused = %d\n",
155					  buf->bytesused);
156
157			dvb_dmx_swfilter(&s->dvb.demux, buf->buf,
158					 buf->bytesused);
159
160			cx18_buf_sync_for_device(s, buf);
161
162			if (s->handle != CX18_INVALID_TASK_HANDLE &&
163			    test_bit(CX18_F_S_STREAMING, &s->s_flags))
164				cx18_vapi(cx,
165				       CX18_CPU_DE_SET_MDL, 5, s->handle,
166				       (void __iomem *)
167				       &cx->scb->cpu_mdl[buf->id] - cx->enc_mem,
168				       1, buf->id, s->buf_size);
169		} else
170			set_bit(CX18_F_B_NEED_BUF_SWAP, &buf->b_flags);
171	}
172	wake_up(&cx->dma_waitq);
173	if (s->id != -1)
174		wake_up(&s->waitq);
175}
176
177static void epu_debug(struct cx18 *cx, struct cx18_epu_work_order *order)
178{
179	char *p;
180	char *str = order->str;
181
182	CX18_DEBUG_INFO("%x %s\n", order->mb.args[0], str);
183	p = strchr(str, '.');
184	if (!test_bit(CX18_F_I_LOADED_FW, &cx->i_flags) && p && p > str)
185		CX18_INFO("FW version: %s\n", p - 1);
186}
187
188static void epu_cmd(struct cx18 *cx, struct cx18_epu_work_order *order)
189{
190	switch (order->rpu) {
191	case CPU:
192	{
193		switch (order->mb.cmd) {
194		case CX18_EPU_DMA_DONE:
195			epu_dma_done(cx, order);
196			break;
197		case CX18_EPU_DEBUG:
198			epu_debug(cx, order);
199			break;
200		default:
201			CX18_WARN("Unknown CPU to EPU mailbox command %#0x\n",
202				  order->mb.cmd);
203			break;
204		}
205		break;
206	}
207	case APU:
208		CX18_WARN("Unknown APU to EPU mailbox command %#0x\n",
209			  order->mb.cmd);
210		break;
211	default:
212		break;
213	}
214}
215
216static
217void free_epu_work_order(struct cx18 *cx, struct cx18_epu_work_order *order)
218{
219	atomic_set(&order->pending, 0);
220}
221
222void cx18_epu_work_handler(struct work_struct *work)
223{
224	struct cx18_epu_work_order *order =
225			container_of(work, struct cx18_epu_work_order, work);
226	struct cx18 *cx = order->cx;
227	epu_cmd(cx, order);
228	free_epu_work_order(cx, order);
229}
230
231
232/*
233 * Functions that run in an interrupt handling context
234 */
235
236static void mb_ack_irq(struct cx18 *cx, struct cx18_epu_work_order *order)
237{
238	struct cx18_mailbox __iomem *ack_mb;
239	u32 ack_irq, req;
240
241	switch (order->rpu) {
242	case APU:
243		ack_irq = IRQ_EPU_TO_APU_ACK;
244		ack_mb = &cx->scb->apu2epu_mb;
245		break;
246	case CPU:
247		ack_irq = IRQ_EPU_TO_CPU_ACK;
248		ack_mb = &cx->scb->cpu2epu_mb;
249		break;
250	default:
251		CX18_WARN("Unhandled RPU (%d) for command %x ack\n",
252			  order->rpu, order->mb.cmd);
253		return;
254	}
255
256	req = order->mb.request;
257	/* Don't ack if the RPU has gotten impatient and timed us out */
258	if (req != cx18_readl(cx, &ack_mb->request) ||
259	    req == cx18_readl(cx, &ack_mb->ack)) {
260		CX18_WARN("Possibly falling behind: %s self-ack'ed our incoming"
261			  " %s to EPU mailbox (sequence no. %u) while "
262			  "processing\n",
263			  rpu_str[order->rpu], rpu_str[order->rpu], req);
264		order->flags |= CX18_F_EWO_MB_STALE_WHILE_PROC;
265		return;
266	}
267	cx18_writel(cx, req, &ack_mb->ack);
268	cx18_write_reg_expect(cx, ack_irq, SW2_INT_SET, ack_irq, ack_irq);
269	return;
270}
271
272static int epu_dma_done_irq(struct cx18 *cx, struct cx18_epu_work_order *order)
273{
274	u32 handle, mdl_ack_offset, mdl_ack_count;
275	struct cx18_mailbox *mb;
276
277	mb = &order->mb;
278	handle = mb->args[0];
279	mdl_ack_offset = mb->args[1];
280	mdl_ack_count = mb->args[2];
281
282	if (handle == CX18_INVALID_TASK_HANDLE ||
283	    mdl_ack_count == 0 || mdl_ack_count > CX18_MAX_MDL_ACKS) {
284		if ((order->flags & CX18_F_EWO_MB_STALE) == 0)
285			mb_ack_irq(cx, order);
286		return -1;
287	}
288
289	cx18_memcpy_fromio(cx, order->mdl_ack, cx->enc_mem + mdl_ack_offset,
290			   sizeof(struct cx18_mdl_ack) * mdl_ack_count);
291
292	if ((order->flags & CX18_F_EWO_MB_STALE) == 0)
293		mb_ack_irq(cx, order);
294	return 1;
295}
296
297static
298int epu_debug_irq(struct cx18 *cx, struct cx18_epu_work_order *order)
299{
300	u32 str_offset;
301	char *str = order->str;
302
303	str[0] = '\0';
304	str_offset = order->mb.args[1];
305	if (str_offset) {
306		cx18_setup_page(cx, str_offset);
307		cx18_memcpy_fromio(cx, str, cx->enc_mem + str_offset, 252);
308		str[252] = '\0';
309		cx18_setup_page(cx, SCB_OFFSET);
310	}
311
312	if ((order->flags & CX18_F_EWO_MB_STALE) == 0)
313		mb_ack_irq(cx, order);
314
315	return str_offset ? 1 : 0;
316}
317
318static inline
319int epu_cmd_irq(struct cx18 *cx, struct cx18_epu_work_order *order)
320{
321	int ret = -1;
322
323	switch (order->rpu) {
324	case CPU:
325	{
326		switch (order->mb.cmd) {
327		case CX18_EPU_DMA_DONE:
328			ret = epu_dma_done_irq(cx, order);
329			break;
330		case CX18_EPU_DEBUG:
331			ret = epu_debug_irq(cx, order);
332			break;
333		default:
334			CX18_WARN("Unknown CPU to EPU mailbox command %#0x\n",
335				  order->mb.cmd);
336			break;
337		}
338		break;
339	}
340	case APU:
341		CX18_WARN("Unknown APU to EPU mailbox command %#0x\n",
342			  order->mb.cmd);
343		break;
344	default:
345		break;
346	}
347	return ret;
348}
349
350static inline
351struct cx18_epu_work_order *alloc_epu_work_order_irq(struct cx18 *cx)
352{
353	int i;
354	struct cx18_epu_work_order *order = NULL;
355
356	for (i = 0; i < CX18_MAX_EPU_WORK_ORDERS; i++) {
357		/*
358		 * We only need "pending" atomic to inspect its contents,
359		 * and need not do a check and set because:
360		 * 1. Any work handler thread only clears "pending" and only
361		 * on one, particular work order at a time, per handler thread.
362		 * 2. "pending" is only set here, and we're serialized because
363		 * we're called in an IRQ handler context.
364		 */
365		if (atomic_read(&cx->epu_work_order[i].pending) == 0) {
366			order = &cx->epu_work_order[i];
367			atomic_set(&order->pending, 1);
368			break;
369		}
370	}
371	return order;
372}
373
374void cx18_api_epu_cmd_irq(struct cx18 *cx, int rpu)
375{
376	struct cx18_mailbox __iomem *mb;
377	struct cx18_mailbox *order_mb;
378	struct cx18_epu_work_order *order;
379	int submit;
380
381	switch (rpu) {
382	case CPU:
383		mb = &cx->scb->cpu2epu_mb;
384		break;
385	case APU:
386		mb = &cx->scb->apu2epu_mb;
387		break;
388	default:
389		return;
390	}
391
392	order = alloc_epu_work_order_irq(cx);
393	if (order == NULL) {
394		CX18_WARN("Unable to find blank work order form to schedule "
395			  "incoming mailbox command processing\n");
396		return;
397	}
398
399	order->flags = 0;
400	order->rpu = rpu;
401	order_mb = &order->mb;
402	cx18_memcpy_fromio(cx, order_mb, mb, sizeof(struct cx18_mailbox));
403
404	if (order_mb->request == order_mb->ack) {
405		CX18_WARN("Possibly falling behind: %s self-ack'ed our incoming"
406			  " %s to EPU mailbox (sequence no. %u)\n",
407			  rpu_str[rpu], rpu_str[rpu], order_mb->request);
408		dump_mb(cx, order_mb, "incoming");
409		order->flags = CX18_F_EWO_MB_STALE_UPON_RECEIPT;
410	}
411
412	/*
413	 * Individual EPU command processing is responsible for ack-ing
414	 * a non-stale mailbox as soon as possible
415	 */
416	submit = epu_cmd_irq(cx, order);
417	if (submit > 0) {
418		queue_work(cx18_work_queue, &order->work);
419	}
420}
421
422
423/*
424 * Functions called from a non-interrupt, non work_queue context
425 */
426
427static void cx18_api_log_ack_delay(struct cx18 *cx, int msecs)
428{
429	if (msecs > CX18_MAX_MB_ACK_DELAY)
430		msecs = CX18_MAX_MB_ACK_DELAY;
431	atomic_inc(&cx->mbox_stats.mb_ack_delay[msecs]);
432}
433
434static int cx18_api_call(struct cx18 *cx, u32 cmd, int args, u32 data[])
435{
436	const struct cx18_api_info *info = find_api_info(cmd);
437	u32 state, irq, req, ack, err;
438	struct cx18_mailbox __iomem *mb;
439	u32 __iomem *xpu_state;
440	wait_queue_head_t *waitq;
441	struct mutex *mb_lock;
442	long int timeout, ret;
443	int i;
444
445	if (info == NULL) {
446		CX18_WARN("unknown cmd %x\n", cmd);
447		return -EINVAL;
448	}
449
450	if (cmd == CX18_CPU_DE_SET_MDL)
451		CX18_DEBUG_HI_API("%s\n", info->name);
452	else
453		CX18_DEBUG_API("%s\n", info->name);
454
455	switch (info->rpu) {
456	case APU:
457		waitq = &cx->mb_apu_waitq;
458		mb_lock = &cx->epu2apu_mb_lock;
459		irq = IRQ_EPU_TO_APU;
460		mb = &cx->scb->epu2apu_mb;
461		xpu_state = &cx->scb->apu_state;
462		break;
463	case CPU:
464		waitq = &cx->mb_cpu_waitq;
465		mb_lock = &cx->epu2cpu_mb_lock;
466		irq = IRQ_EPU_TO_CPU;
467		mb = &cx->scb->epu2cpu_mb;
468		xpu_state = &cx->scb->cpu_state;
469		break;
470	default:
471		CX18_WARN("Unknown RPU (%d) for API call\n", info->rpu);
472		return -EINVAL;
473	}
474
475	mutex_lock(mb_lock);
476	/*
477	 * Wait for an in-use mailbox to complete
478	 *
479	 * If the XPU is responding with Ack's, the mailbox shouldn't be in
480	 * a busy state, since we serialize access to it on our end.
481	 *
482	 * If the wait for ack after sending a previous command was interrupted
483	 * by a signal, we may get here and find a busy mailbox.  After waiting,
484	 * mark it "not busy" from our end, if the XPU hasn't ack'ed it still.
485	 */
486	state = cx18_readl(cx, xpu_state);
487	req = cx18_readl(cx, &mb->request);
488	timeout = msecs_to_jiffies(20); /* 1 field at 50 Hz vertical refresh */
489	ret = wait_event_timeout(*waitq,
490				 (ack = cx18_readl(cx, &mb->ack)) == req,
491				 timeout);
492	if (req != ack) {
493		/* waited long enough, make the mbox "not busy" from our end */
494		cx18_writel(cx, req, &mb->ack);
495		CX18_ERR("mbox was found stuck busy when setting up for %s; "
496			 "clearing busy and trying to proceed\n", info->name);
497	} else if (ret != timeout)
498		CX18_DEBUG_API("waited %u usecs for busy mbox to be acked\n",
499			       jiffies_to_usecs(timeout-ret));
500
501	/* Build the outgoing mailbox */
502	req = ((req & 0xfffffffe) == 0xfffffffe) ? 1 : req + 1;
503
504	cx18_writel(cx, cmd, &mb->cmd);
505	for (i = 0; i < args; i++)
506		cx18_writel(cx, data[i], &mb->args[i]);
507	cx18_writel(cx, 0, &mb->error);
508	cx18_writel(cx, req, &mb->request);
509	cx18_writel(cx, req - 1, &mb->ack); /* ensure ack & req are distinct */
510
511	/*
512	 * Notify the XPU and wait for it to send an Ack back
513	 * 21 ms = ~ 0.5 frames at a frame rate of 24 fps
514	 * 42 ms = ~ 1 frame at a frame rate of 24 fps
515	 */
516	timeout = msecs_to_jiffies((info->flags & API_FAST) ? 21 : 42);
517
518	CX18_DEBUG_HI_IRQ("sending interrupt SW1: %x to send %s\n",
519			  irq, info->name);
520	cx18_write_reg_expect(cx, irq, SW1_INT_SET, irq, irq);
521
522	ret = wait_event_timeout(
523		       *waitq,
524		       cx18_readl(cx, &mb->ack) == cx18_readl(cx, &mb->request),
525		       timeout);
526	if (ret == 0) {
527		/* Timed out */
528		mutex_unlock(mb_lock);
529		i = jiffies_to_msecs(timeout);
530		cx18_api_log_ack_delay(cx, i);
531		CX18_WARN("sending %s timed out waiting %d msecs for RPU "
532			  "acknowledgement\n", info->name, i);
533		return -EINVAL;
534	} else if (ret < 0) {
535		/* Interrupted */
536		mutex_unlock(mb_lock);
537		CX18_WARN("sending %s was interrupted waiting for RPU"
538			  "acknowledgement\n", info->name);
539		return -EINTR;
540	}
541
542	i = jiffies_to_msecs(timeout-ret);
543	cx18_api_log_ack_delay(cx, i);
544	if (ret != timeout)
545		CX18_DEBUG_HI_API("waited %u msecs for %s to be acked\n",
546				  i, info->name);
547
548	/* Collect data returned by the XPU */
549	for (i = 0; i < MAX_MB_ARGUMENTS; i++)
550		data[i] = cx18_readl(cx, &mb->args[i]);
551	err = cx18_readl(cx, &mb->error);
552	mutex_unlock(mb_lock);
553
554	/*
555	 * Wait for XPU to perform extra actions for the caller in some cases.
556	 * e.g. CX18_CPU_DE_RELEASE_MDL will cause the CPU to send all buffers
557	 * back in a burst shortly thereafter
558	 */
559	if (info->flags & API_SLOW)
560		cx18_msleep_timeout(300, 0);
561
562	if (err)
563		CX18_DEBUG_API("mailbox error %08x for command %s\n", err,
564				info->name);
565	return err ? -EIO : 0;
566}
567
568int cx18_api(struct cx18 *cx, u32 cmd, int args, u32 data[])
569{
570	return cx18_api_call(cx, cmd, args, data);
571}
572
573static int cx18_set_filter_param(struct cx18_stream *s)
574{
575	struct cx18 *cx = s->cx;
576	u32 mode;
577	int ret;
578
579	mode = (cx->filter_mode & 1) ? 2 : (cx->spatial_strength ? 1 : 0);
580	ret = cx18_vapi(cx, CX18_CPU_SET_FILTER_PARAM, 4,
581			s->handle, 1, mode, cx->spatial_strength);
582	mode = (cx->filter_mode & 2) ? 2 : (cx->temporal_strength ? 1 : 0);
583	ret = ret ? ret : cx18_vapi(cx, CX18_CPU_SET_FILTER_PARAM, 4,
584			s->handle, 0, mode, cx->temporal_strength);
585	ret = ret ? ret : cx18_vapi(cx, CX18_CPU_SET_FILTER_PARAM, 4,
586			s->handle, 2, cx->filter_mode >> 2, 0);
587	return ret;
588}
589
590int cx18_api_func(void *priv, u32 cmd, int in, int out,
591		u32 data[CX2341X_MBOX_MAX_DATA])
592{
593	struct cx18 *cx = priv;
594	struct cx18_stream *s = &cx->streams[CX18_ENC_STREAM_TYPE_MPG];
595
596	switch (cmd) {
597	case CX2341X_ENC_SET_OUTPUT_PORT:
598		return 0;
599	case CX2341X_ENC_SET_FRAME_RATE:
600		return cx18_vapi(cx, CX18_CPU_SET_VIDEO_IN, 6,
601				s->handle, 0, 0, 0, 0, data[0]);
602	case CX2341X_ENC_SET_FRAME_SIZE:
603		return cx18_vapi(cx, CX18_CPU_SET_VIDEO_RESOLUTION, 3,
604				s->handle, data[1], data[0]);
605	case CX2341X_ENC_SET_STREAM_TYPE:
606		return cx18_vapi(cx, CX18_CPU_SET_STREAM_OUTPUT_TYPE, 2,
607				s->handle, data[0]);
608	case CX2341X_ENC_SET_ASPECT_RATIO:
609		return cx18_vapi(cx, CX18_CPU_SET_ASPECT_RATIO, 2,
610				s->handle, data[0]);
611
612	case CX2341X_ENC_SET_GOP_PROPERTIES:
613		return cx18_vapi(cx, CX18_CPU_SET_GOP_STRUCTURE, 3,
614				s->handle, data[0], data[1]);
615	case CX2341X_ENC_SET_GOP_CLOSURE:
616		return 0;
617	case CX2341X_ENC_SET_AUDIO_PROPERTIES:
618		return cx18_vapi(cx, CX18_CPU_SET_AUDIO_PARAMETERS, 2,
619				s->handle, data[0]);
620	case CX2341X_ENC_MUTE_AUDIO:
621		return cx18_vapi(cx, CX18_CPU_SET_AUDIO_MUTE, 2,
622				s->handle, data[0]);
623	case CX2341X_ENC_SET_BIT_RATE:
624		return cx18_vapi(cx, CX18_CPU_SET_VIDEO_RATE, 5,
625				s->handle, data[0], data[1], data[2], data[3]);
626	case CX2341X_ENC_MUTE_VIDEO:
627		return cx18_vapi(cx, CX18_CPU_SET_VIDEO_MUTE, 2,
628				s->handle, data[0]);
629	case CX2341X_ENC_SET_FRAME_DROP_RATE:
630		return cx18_vapi(cx, CX18_CPU_SET_SKIP_INPUT_FRAME, 2,
631				s->handle, data[0]);
632	case CX2341X_ENC_MISC:
633		return cx18_vapi(cx, CX18_CPU_SET_MISC_PARAMETERS, 4,
634				s->handle, data[0], data[1], data[2]);
635	case CX2341X_ENC_SET_DNR_FILTER_MODE:
636		cx->filter_mode = (data[0] & 3) | (data[1] << 2);
637		return cx18_set_filter_param(s);
638	case CX2341X_ENC_SET_DNR_FILTER_PROPS:
639		cx->spatial_strength = data[0];
640		cx->temporal_strength = data[1];
641		return cx18_set_filter_param(s);
642	case CX2341X_ENC_SET_SPATIAL_FILTER_TYPE:
643		return cx18_vapi(cx, CX18_CPU_SET_SPATIAL_FILTER_TYPE, 3,
644				s->handle, data[0], data[1]);
645	case CX2341X_ENC_SET_CORING_LEVELS:
646		return cx18_vapi(cx, CX18_CPU_SET_MEDIAN_CORING, 5,
647				s->handle, data[0], data[1], data[2], data[3]);
648	}
649	CX18_WARN("Unknown cmd %x\n", cmd);
650	return 0;
651}
652
653int cx18_vapi_result(struct cx18 *cx, u32 data[MAX_MB_ARGUMENTS],
654		u32 cmd, int args, ...)
655{
656	va_list ap;
657	int i;
658
659	va_start(ap, args);
660	for (i = 0; i < args; i++)
661		data[i] = va_arg(ap, u32);
662	va_end(ap);
663	return cx18_api(cx, cmd, args, data);
664}
665
666int cx18_vapi(struct cx18 *cx, u32 cmd, int args, ...)
667{
668	u32 data[MAX_MB_ARGUMENTS];
669	va_list ap;
670	int i;
671
672	if (cx == NULL) {
673		CX18_ERR("cx == NULL (cmd=%x)\n", cmd);
674		return 0;
675	}
676	if (args > MAX_MB_ARGUMENTS) {
677		CX18_ERR("args too big (cmd=%x)\n", cmd);
678		args = MAX_MB_ARGUMENTS;
679	}
680	va_start(ap, args);
681	for (i = 0; i < args; i++)
682		data[i] = va_arg(ap, u32);
683	va_end(ap);
684	return cx18_api(cx, cmd, args, data);
685}
686