cx18-mailbox.c revision d6c7e5f8faad080e75bace5c4f2265e3513e3510
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
403	/* mb->cmd and mb->args[0] through mb->args[2] */
404	cx18_memcpy_fromio(cx, &order_mb->cmd, &mb->cmd, 4 * sizeof(u32));
405	/* mb->request and mb->ack.  N.B. we want to read mb->ack last */
406	cx18_memcpy_fromio(cx, &order_mb->request, &mb->request,
407			   2 * sizeof(u32));
408
409	if (order_mb->request == order_mb->ack) {
410		CX18_WARN("Possibly falling behind: %s self-ack'ed our incoming"
411			  " %s to EPU mailbox (sequence no. %u)\n",
412			  rpu_str[rpu], rpu_str[rpu], order_mb->request);
413		dump_mb(cx, order_mb, "incoming");
414		order->flags = CX18_F_EWO_MB_STALE_UPON_RECEIPT;
415	}
416
417	/*
418	 * Individual EPU command processing is responsible for ack-ing
419	 * a non-stale mailbox as soon as possible
420	 */
421	submit = epu_cmd_irq(cx, order);
422	if (submit > 0) {
423		queue_work(cx18_work_queue, &order->work);
424	}
425}
426
427
428/*
429 * Functions called from a non-interrupt, non work_queue context
430 */
431
432static void cx18_api_log_ack_delay(struct cx18 *cx, int msecs)
433{
434	if (msecs > CX18_MAX_MB_ACK_DELAY)
435		msecs = CX18_MAX_MB_ACK_DELAY;
436	atomic_inc(&cx->mbox_stats.mb_ack_delay[msecs]);
437}
438
439static int cx18_api_call(struct cx18 *cx, u32 cmd, int args, u32 data[])
440{
441	const struct cx18_api_info *info = find_api_info(cmd);
442	u32 state, irq, req, ack, err;
443	struct cx18_mailbox __iomem *mb;
444	u32 __iomem *xpu_state;
445	wait_queue_head_t *waitq;
446	struct mutex *mb_lock;
447	long int timeout, ret;
448	int i;
449
450	if (info == NULL) {
451		CX18_WARN("unknown cmd %x\n", cmd);
452		return -EINVAL;
453	}
454
455	if (cmd == CX18_CPU_DE_SET_MDL)
456		CX18_DEBUG_HI_API("%s\n", info->name);
457	else
458		CX18_DEBUG_API("%s\n", info->name);
459
460	switch (info->rpu) {
461	case APU:
462		waitq = &cx->mb_apu_waitq;
463		mb_lock = &cx->epu2apu_mb_lock;
464		irq = IRQ_EPU_TO_APU;
465		mb = &cx->scb->epu2apu_mb;
466		xpu_state = &cx->scb->apu_state;
467		break;
468	case CPU:
469		waitq = &cx->mb_cpu_waitq;
470		mb_lock = &cx->epu2cpu_mb_lock;
471		irq = IRQ_EPU_TO_CPU;
472		mb = &cx->scb->epu2cpu_mb;
473		xpu_state = &cx->scb->cpu_state;
474		break;
475	default:
476		CX18_WARN("Unknown RPU (%d) for API call\n", info->rpu);
477		return -EINVAL;
478	}
479
480	mutex_lock(mb_lock);
481	/*
482	 * Wait for an in-use mailbox to complete
483	 *
484	 * If the XPU is responding with Ack's, the mailbox shouldn't be in
485	 * a busy state, since we serialize access to it on our end.
486	 *
487	 * If the wait for ack after sending a previous command was interrupted
488	 * by a signal, we may get here and find a busy mailbox.  After waiting,
489	 * mark it "not busy" from our end, if the XPU hasn't ack'ed it still.
490	 */
491	state = cx18_readl(cx, xpu_state);
492	req = cx18_readl(cx, &mb->request);
493	timeout = msecs_to_jiffies(20); /* 1 field at 50 Hz vertical refresh */
494	ret = wait_event_timeout(*waitq,
495				 (ack = cx18_readl(cx, &mb->ack)) == req,
496				 timeout);
497	if (req != ack) {
498		/* waited long enough, make the mbox "not busy" from our end */
499		cx18_writel(cx, req, &mb->ack);
500		CX18_ERR("mbox was found stuck busy when setting up for %s; "
501			 "clearing busy and trying to proceed\n", info->name);
502	} else if (ret != timeout)
503		CX18_DEBUG_API("waited %u usecs for busy mbox to be acked\n",
504			       jiffies_to_usecs(timeout-ret));
505
506	/* Build the outgoing mailbox */
507	req = ((req & 0xfffffffe) == 0xfffffffe) ? 1 : req + 1;
508
509	cx18_writel(cx, cmd, &mb->cmd);
510	for (i = 0; i < args; i++)
511		cx18_writel(cx, data[i], &mb->args[i]);
512	cx18_writel(cx, 0, &mb->error);
513	cx18_writel(cx, req, &mb->request);
514	cx18_writel(cx, req - 1, &mb->ack); /* ensure ack & req are distinct */
515
516	/*
517	 * Notify the XPU and wait for it to send an Ack back
518	 * 21 ms = ~ 0.5 frames at a frame rate of 24 fps
519	 * 42 ms = ~ 1 frame at a frame rate of 24 fps
520	 */
521	timeout = msecs_to_jiffies((info->flags & API_FAST) ? 21 : 42);
522
523	CX18_DEBUG_HI_IRQ("sending interrupt SW1: %x to send %s\n",
524			  irq, info->name);
525	cx18_write_reg_expect(cx, irq, SW1_INT_SET, irq, irq);
526
527	ret = wait_event_timeout(
528		       *waitq,
529		       cx18_readl(cx, &mb->ack) == cx18_readl(cx, &mb->request),
530		       timeout);
531	if (ret == 0) {
532		/* Timed out */
533		mutex_unlock(mb_lock);
534		i = jiffies_to_msecs(timeout);
535		cx18_api_log_ack_delay(cx, i);
536		CX18_WARN("sending %s timed out waiting %d msecs for RPU "
537			  "acknowledgement\n", info->name, i);
538		return -EINVAL;
539	} else if (ret < 0) {
540		/* Interrupted */
541		mutex_unlock(mb_lock);
542		CX18_WARN("sending %s was interrupted waiting for RPU"
543			  "acknowledgement\n", info->name);
544		return -EINTR;
545	}
546
547	i = jiffies_to_msecs(timeout-ret);
548	cx18_api_log_ack_delay(cx, i);
549	if (ret != timeout)
550		CX18_DEBUG_HI_API("waited %u msecs for %s to be acked\n",
551				  i, info->name);
552
553	/* Collect data returned by the XPU */
554	for (i = 0; i < MAX_MB_ARGUMENTS; i++)
555		data[i] = cx18_readl(cx, &mb->args[i]);
556	err = cx18_readl(cx, &mb->error);
557	mutex_unlock(mb_lock);
558
559	/*
560	 * Wait for XPU to perform extra actions for the caller in some cases.
561	 * e.g. CX18_CPU_DE_RELEASE_MDL will cause the CPU to send all buffers
562	 * back in a burst shortly thereafter
563	 */
564	if (info->flags & API_SLOW)
565		cx18_msleep_timeout(300, 0);
566
567	if (err)
568		CX18_DEBUG_API("mailbox error %08x for command %s\n", err,
569				info->name);
570	return err ? -EIO : 0;
571}
572
573int cx18_api(struct cx18 *cx, u32 cmd, int args, u32 data[])
574{
575	return cx18_api_call(cx, cmd, args, data);
576}
577
578static int cx18_set_filter_param(struct cx18_stream *s)
579{
580	struct cx18 *cx = s->cx;
581	u32 mode;
582	int ret;
583
584	mode = (cx->filter_mode & 1) ? 2 : (cx->spatial_strength ? 1 : 0);
585	ret = cx18_vapi(cx, CX18_CPU_SET_FILTER_PARAM, 4,
586			s->handle, 1, mode, cx->spatial_strength);
587	mode = (cx->filter_mode & 2) ? 2 : (cx->temporal_strength ? 1 : 0);
588	ret = ret ? ret : cx18_vapi(cx, CX18_CPU_SET_FILTER_PARAM, 4,
589			s->handle, 0, mode, cx->temporal_strength);
590	ret = ret ? ret : cx18_vapi(cx, CX18_CPU_SET_FILTER_PARAM, 4,
591			s->handle, 2, cx->filter_mode >> 2, 0);
592	return ret;
593}
594
595int cx18_api_func(void *priv, u32 cmd, int in, int out,
596		u32 data[CX2341X_MBOX_MAX_DATA])
597{
598	struct cx18 *cx = priv;
599	struct cx18_stream *s = &cx->streams[CX18_ENC_STREAM_TYPE_MPG];
600
601	switch (cmd) {
602	case CX2341X_ENC_SET_OUTPUT_PORT:
603		return 0;
604	case CX2341X_ENC_SET_FRAME_RATE:
605		return cx18_vapi(cx, CX18_CPU_SET_VIDEO_IN, 6,
606				s->handle, 0, 0, 0, 0, data[0]);
607	case CX2341X_ENC_SET_FRAME_SIZE:
608		return cx18_vapi(cx, CX18_CPU_SET_VIDEO_RESOLUTION, 3,
609				s->handle, data[1], data[0]);
610	case CX2341X_ENC_SET_STREAM_TYPE:
611		return cx18_vapi(cx, CX18_CPU_SET_STREAM_OUTPUT_TYPE, 2,
612				s->handle, data[0]);
613	case CX2341X_ENC_SET_ASPECT_RATIO:
614		return cx18_vapi(cx, CX18_CPU_SET_ASPECT_RATIO, 2,
615				s->handle, data[0]);
616
617	case CX2341X_ENC_SET_GOP_PROPERTIES:
618		return cx18_vapi(cx, CX18_CPU_SET_GOP_STRUCTURE, 3,
619				s->handle, data[0], data[1]);
620	case CX2341X_ENC_SET_GOP_CLOSURE:
621		return 0;
622	case CX2341X_ENC_SET_AUDIO_PROPERTIES:
623		return cx18_vapi(cx, CX18_CPU_SET_AUDIO_PARAMETERS, 2,
624				s->handle, data[0]);
625	case CX2341X_ENC_MUTE_AUDIO:
626		return cx18_vapi(cx, CX18_CPU_SET_AUDIO_MUTE, 2,
627				s->handle, data[0]);
628	case CX2341X_ENC_SET_BIT_RATE:
629		return cx18_vapi(cx, CX18_CPU_SET_VIDEO_RATE, 5,
630				s->handle, data[0], data[1], data[2], data[3]);
631	case CX2341X_ENC_MUTE_VIDEO:
632		return cx18_vapi(cx, CX18_CPU_SET_VIDEO_MUTE, 2,
633				s->handle, data[0]);
634	case CX2341X_ENC_SET_FRAME_DROP_RATE:
635		return cx18_vapi(cx, CX18_CPU_SET_SKIP_INPUT_FRAME, 2,
636				s->handle, data[0]);
637	case CX2341X_ENC_MISC:
638		return cx18_vapi(cx, CX18_CPU_SET_MISC_PARAMETERS, 4,
639				s->handle, data[0], data[1], data[2]);
640	case CX2341X_ENC_SET_DNR_FILTER_MODE:
641		cx->filter_mode = (data[0] & 3) | (data[1] << 2);
642		return cx18_set_filter_param(s);
643	case CX2341X_ENC_SET_DNR_FILTER_PROPS:
644		cx->spatial_strength = data[0];
645		cx->temporal_strength = data[1];
646		return cx18_set_filter_param(s);
647	case CX2341X_ENC_SET_SPATIAL_FILTER_TYPE:
648		return cx18_vapi(cx, CX18_CPU_SET_SPATIAL_FILTER_TYPE, 3,
649				s->handle, data[0], data[1]);
650	case CX2341X_ENC_SET_CORING_LEVELS:
651		return cx18_vapi(cx, CX18_CPU_SET_MEDIAN_CORING, 5,
652				s->handle, data[0], data[1], data[2], data[3]);
653	}
654	CX18_WARN("Unknown cmd %x\n", cmd);
655	return 0;
656}
657
658int cx18_vapi_result(struct cx18 *cx, u32 data[MAX_MB_ARGUMENTS],
659		u32 cmd, int args, ...)
660{
661	va_list ap;
662	int i;
663
664	va_start(ap, args);
665	for (i = 0; i < args; i++)
666		data[i] = va_arg(ap, u32);
667	va_end(ap);
668	return cx18_api(cx, cmd, args, data);
669}
670
671int cx18_vapi(struct cx18 *cx, u32 cmd, int args, ...)
672{
673	u32 data[MAX_MB_ARGUMENTS];
674	va_list ap;
675	int i;
676
677	if (cx == NULL) {
678		CX18_ERR("cx == NULL (cmd=%x)\n", cmd);
679		return 0;
680	}
681	if (args > MAX_MB_ARGUMENTS) {
682		CX18_ERR("args too big (cmd=%x)\n", cmd);
683		args = MAX_MB_ARGUMENTS;
684	}
685	va_start(ap, args);
686	for (i = 0; i < args; i++)
687		data[i] = va_arg(ap, u32);
688	va_end(ap);
689	return cx18_api(cx, cmd, args, data);
690}
691