1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * Copyright (c) 2016 MediaTek Inc.
4 * Author: PC Chen <pc.chen@mediatek.com>
5 * Tiffany Lin <tiffany.lin@mediatek.com>
6 */
7
8 #include <media/v4l2-event.h>
9 #include <media/v4l2-mem2mem.h>
10 #include <media/videobuf2-dma-contig.h>
11 #include <linux/pm_runtime.h>
12
13 #include "mtk_vcodec_enc.h"
14 #include "venc_drv_if.h"
15
16 #define MTK_VENC_MIN_W 160U
17 #define MTK_VENC_MIN_H 128U
18 #define MTK_VENC_HD_MAX_W 1920U
19 #define MTK_VENC_HD_MAX_H 1088U
20 #define MTK_VENC_4K_MAX_W 3840U
21 #define MTK_VENC_4K_MAX_H 2176U
22
23 #define DFT_CFG_WIDTH MTK_VENC_MIN_W
24 #define DFT_CFG_HEIGHT MTK_VENC_MIN_H
25 #define MTK_MAX_CTRLS_HINT 20
26
27 #define MTK_DEFAULT_FRAMERATE_NUM 1001
28 #define MTK_DEFAULT_FRAMERATE_DENOM 30000
29 #define MTK_VENC_4K_CAPABILITY_ENABLE BIT(0)
30
31 static void mtk_venc_worker(struct work_struct *work);
32
33 static const struct v4l2_frmsize_stepwise mtk_venc_hd_framesizes = {
34 MTK_VENC_MIN_W, MTK_VENC_HD_MAX_W, 16,
35 MTK_VENC_MIN_H, MTK_VENC_HD_MAX_H, 16,
36 };
37
38 static const struct v4l2_frmsize_stepwise mtk_venc_4k_framesizes = {
39 MTK_VENC_MIN_W, MTK_VENC_4K_MAX_W, 16,
40 MTK_VENC_MIN_H, MTK_VENC_4K_MAX_H, 16,
41 };
42
vidioc_venc_s_ctrl(struct v4l2_ctrl * ctrl)43 static int vidioc_venc_s_ctrl(struct v4l2_ctrl *ctrl)
44 {
45 struct mtk_vcodec_enc_ctx *ctx = ctrl_to_enc_ctx(ctrl);
46 struct mtk_enc_params *p = &ctx->enc_params;
47 int ret = 0;
48
49 switch (ctrl->id) {
50 case V4L2_CID_MPEG_VIDEO_BITRATE_MODE:
51 mtk_v4l2_venc_dbg(2, ctx, "V4L2_CID_MPEG_VIDEO_BITRATE_MODE val= %d", ctrl->val);
52 if (ctrl->val != V4L2_MPEG_VIDEO_BITRATE_MODE_CBR) {
53 mtk_v4l2_venc_err(ctx, "Unsupported bitrate mode =%d", ctrl->val);
54 ret = -EINVAL;
55 }
56 break;
57 case V4L2_CID_MPEG_VIDEO_BITRATE:
58 mtk_v4l2_venc_dbg(2, ctx, "V4L2_CID_MPEG_VIDEO_BITRATE val = %d", ctrl->val);
59 p->bitrate = ctrl->val;
60 ctx->param_change |= MTK_ENCODE_PARAM_BITRATE;
61 break;
62 case V4L2_CID_MPEG_VIDEO_B_FRAMES:
63 mtk_v4l2_venc_dbg(2, ctx, "V4L2_CID_MPEG_VIDEO_B_FRAMES val = %d", ctrl->val);
64 p->num_b_frame = ctrl->val;
65 break;
66 case V4L2_CID_MPEG_VIDEO_FRAME_RC_ENABLE:
67 mtk_v4l2_venc_dbg(2, ctx, "V4L2_CID_MPEG_VIDEO_FRAME_RC_ENABLE val = %d",
68 ctrl->val);
69 p->rc_frame = ctrl->val;
70 break;
71 case V4L2_CID_MPEG_VIDEO_H264_MAX_QP:
72 mtk_v4l2_venc_dbg(2, ctx, "V4L2_CID_MPEG_VIDEO_H264_MAX_QP val = %d", ctrl->val);
73 p->h264_max_qp = ctrl->val;
74 break;
75 case V4L2_CID_MPEG_VIDEO_HEADER_MODE:
76 mtk_v4l2_venc_dbg(2, ctx, "V4L2_CID_MPEG_VIDEO_HEADER_MODE val = %d", ctrl->val);
77 p->seq_hdr_mode = ctrl->val;
78 break;
79 case V4L2_CID_MPEG_VIDEO_MB_RC_ENABLE:
80 mtk_v4l2_venc_dbg(2, ctx, "V4L2_CID_MPEG_VIDEO_MB_RC_ENABLE val = %d", ctrl->val);
81 p->rc_mb = ctrl->val;
82 break;
83 case V4L2_CID_MPEG_VIDEO_H264_PROFILE:
84 mtk_v4l2_venc_dbg(2, ctx, "V4L2_CID_MPEG_VIDEO_H264_PROFILE val = %d", ctrl->val);
85 p->h264_profile = ctrl->val;
86 break;
87 case V4L2_CID_MPEG_VIDEO_H264_LEVEL:
88 mtk_v4l2_venc_dbg(2, ctx, "V4L2_CID_MPEG_VIDEO_H264_LEVEL val = %d", ctrl->val);
89 p->h264_level = ctrl->val;
90 break;
91 case V4L2_CID_MPEG_VIDEO_H264_I_PERIOD:
92 mtk_v4l2_venc_dbg(2, ctx, "V4L2_CID_MPEG_VIDEO_H264_I_PERIOD val = %d", ctrl->val);
93 p->intra_period = ctrl->val;
94 ctx->param_change |= MTK_ENCODE_PARAM_INTRA_PERIOD;
95 break;
96 case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
97 mtk_v4l2_venc_dbg(2, ctx, "V4L2_CID_MPEG_VIDEO_GOP_SIZE val = %d", ctrl->val);
98 p->gop_size = ctrl->val;
99 ctx->param_change |= MTK_ENCODE_PARAM_GOP_SIZE;
100 break;
101 case V4L2_CID_MPEG_VIDEO_VP8_PROFILE:
102 /*
103 * FIXME - what vp8 profiles are actually supported?
104 * The ctrl is added (with only profile 0 supported) for now.
105 */
106 mtk_v4l2_venc_dbg(2, ctx, "V4L2_CID_MPEG_VIDEO_VP8_PROFILE val = %d", ctrl->val);
107 break;
108 case V4L2_CID_MPEG_VIDEO_FORCE_KEY_FRAME:
109 mtk_v4l2_venc_dbg(2, ctx, "V4L2_CID_MPEG_VIDEO_FORCE_KEY_FRAME");
110 p->force_intra = 1;
111 ctx->param_change |= MTK_ENCODE_PARAM_FORCE_INTRA;
112 break;
113 default:
114 ret = -EINVAL;
115 break;
116 }
117
118 return ret;
119 }
120
121 static const struct v4l2_ctrl_ops mtk_vcodec_enc_ctrl_ops = {
122 .s_ctrl = vidioc_venc_s_ctrl,
123 };
124
vidioc_enum_fmt(struct v4l2_fmtdesc * f,const struct mtk_video_fmt * formats,size_t num_formats)125 static int vidioc_enum_fmt(struct v4l2_fmtdesc *f,
126 const struct mtk_video_fmt *formats,
127 size_t num_formats)
128 {
129 if (f->index >= num_formats)
130 return -EINVAL;
131
132 f->pixelformat = formats[f->index].fourcc;
133
134 return 0;
135 }
136
137 static const struct mtk_video_fmt *
mtk_venc_find_format(u32 fourcc,const struct mtk_vcodec_enc_pdata * pdata)138 mtk_venc_find_format(u32 fourcc, const struct mtk_vcodec_enc_pdata *pdata)
139 {
140 const struct mtk_video_fmt *fmt;
141 unsigned int k;
142
143 for (k = 0; k < pdata->num_capture_formats; k++) {
144 fmt = &pdata->capture_formats[k];
145 if (fmt->fourcc == fourcc)
146 return fmt;
147 }
148
149 for (k = 0; k < pdata->num_output_formats; k++) {
150 fmt = &pdata->output_formats[k];
151 if (fmt->fourcc == fourcc)
152 return fmt;
153 }
154
155 return NULL;
156 }
157
vidioc_enum_framesizes(struct file * file,void * fh,struct v4l2_frmsizeenum * fsize)158 static int vidioc_enum_framesizes(struct file *file, void *fh,
159 struct v4l2_frmsizeenum *fsize)
160 {
161 const struct mtk_video_fmt *fmt;
162 struct mtk_vcodec_enc_ctx *ctx = fh_to_enc_ctx(fh);
163
164 if (fsize->index != 0)
165 return -EINVAL;
166
167 fmt = mtk_venc_find_format(fsize->pixel_format,
168 ctx->dev->venc_pdata);
169 if (!fmt)
170 return -EINVAL;
171
172 fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE;
173
174 if (ctx->dev->enc_capability & MTK_VENC_4K_CAPABILITY_ENABLE)
175 fsize->stepwise = mtk_venc_4k_framesizes;
176 else
177 fsize->stepwise = mtk_venc_hd_framesizes;
178
179 return 0;
180 }
181
vidioc_enum_fmt_vid_cap(struct file * file,void * priv,struct v4l2_fmtdesc * f)182 static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
183 struct v4l2_fmtdesc *f)
184 {
185 const struct mtk_vcodec_enc_pdata *pdata =
186 fh_to_enc_ctx(priv)->dev->venc_pdata;
187
188 return vidioc_enum_fmt(f, pdata->capture_formats,
189 pdata->num_capture_formats);
190 }
191
vidioc_enum_fmt_vid_out(struct file * file,void * priv,struct v4l2_fmtdesc * f)192 static int vidioc_enum_fmt_vid_out(struct file *file, void *priv,
193 struct v4l2_fmtdesc *f)
194 {
195 const struct mtk_vcodec_enc_pdata *pdata =
196 fh_to_enc_ctx(priv)->dev->venc_pdata;
197
198 return vidioc_enum_fmt(f, pdata->output_formats,
199 pdata->num_output_formats);
200 }
201
mtk_vcodec_enc_get_chip_name(void * priv)202 static int mtk_vcodec_enc_get_chip_name(void *priv)
203 {
204 struct mtk_vcodec_enc_ctx *ctx = fh_to_enc_ctx(priv);
205 struct device *dev = &ctx->dev->plat_dev->dev;
206
207 if (of_device_is_compatible(dev->of_node, "mediatek,mt8173-vcodec-enc"))
208 return 8173;
209 else if (of_device_is_compatible(dev->of_node, "mediatek,mt8183-vcodec-enc"))
210 return 8183;
211 else if (of_device_is_compatible(dev->of_node, "mediatek,mt8192-vcodec-enc"))
212 return 8192;
213 else if (of_device_is_compatible(dev->of_node, "mediatek,mt8195-vcodec-enc"))
214 return 8195;
215 else if (of_device_is_compatible(dev->of_node, "mediatek,mt8188-vcodec-enc"))
216 return 8188;
217 else
218 return 8173;
219 }
220
vidioc_venc_querycap(struct file * file,void * priv,struct v4l2_capability * cap)221 static int vidioc_venc_querycap(struct file *file, void *priv,
222 struct v4l2_capability *cap)
223 {
224 struct mtk_vcodec_enc_ctx *ctx = fh_to_enc_ctx(priv);
225 struct device *dev = &ctx->dev->plat_dev->dev;
226 int platform_name = mtk_vcodec_enc_get_chip_name(priv);
227
228 strscpy(cap->driver, dev->driver->name, sizeof(cap->driver));
229 snprintf(cap->card, sizeof(cap->card), "MT%d video encoder", platform_name);
230
231 return 0;
232 }
233
vidioc_venc_s_parm(struct file * file,void * priv,struct v4l2_streamparm * a)234 static int vidioc_venc_s_parm(struct file *file, void *priv,
235 struct v4l2_streamparm *a)
236 {
237 struct mtk_vcodec_enc_ctx *ctx = fh_to_enc_ctx(priv);
238 struct v4l2_fract *timeperframe = &a->parm.output.timeperframe;
239
240 if (a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
241 return -EINVAL;
242
243 if (timeperframe->numerator == 0 || timeperframe->denominator == 0) {
244 timeperframe->numerator = MTK_DEFAULT_FRAMERATE_NUM;
245 timeperframe->denominator = MTK_DEFAULT_FRAMERATE_DENOM;
246 }
247
248 ctx->enc_params.framerate_num = timeperframe->denominator;
249 ctx->enc_params.framerate_denom = timeperframe->numerator;
250 ctx->param_change |= MTK_ENCODE_PARAM_FRAMERATE;
251
252 a->parm.output.capability = V4L2_CAP_TIMEPERFRAME;
253
254 return 0;
255 }
256
vidioc_venc_g_parm(struct file * file,void * priv,struct v4l2_streamparm * a)257 static int vidioc_venc_g_parm(struct file *file, void *priv,
258 struct v4l2_streamparm *a)
259 {
260 struct mtk_vcodec_enc_ctx *ctx = fh_to_enc_ctx(priv);
261
262 if (a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
263 return -EINVAL;
264
265 a->parm.output.capability = V4L2_CAP_TIMEPERFRAME;
266 a->parm.output.timeperframe.denominator =
267 ctx->enc_params.framerate_num;
268 a->parm.output.timeperframe.numerator =
269 ctx->enc_params.framerate_denom;
270
271 return 0;
272 }
273
mtk_venc_get_q_data(struct mtk_vcodec_enc_ctx * ctx,enum v4l2_buf_type type)274 static struct mtk_q_data *mtk_venc_get_q_data(struct mtk_vcodec_enc_ctx *ctx,
275 enum v4l2_buf_type type)
276 {
277 if (V4L2_TYPE_IS_OUTPUT(type))
278 return &ctx->q_data[MTK_Q_DATA_SRC];
279
280 return &ctx->q_data[MTK_Q_DATA_DST];
281 }
282
vidioc_try_fmt_cap(struct v4l2_format * f)283 static void vidioc_try_fmt_cap(struct v4l2_format *f)
284 {
285 f->fmt.pix_mp.field = V4L2_FIELD_NONE;
286 f->fmt.pix_mp.num_planes = 1;
287 f->fmt.pix_mp.plane_fmt[0].bytesperline = 0;
288 f->fmt.pix_mp.flags = 0;
289 }
290
291 /* V4L2 specification suggests the driver corrects the format struct if any of
292 * the dimensions is unsupported
293 */
vidioc_try_fmt_out(struct mtk_vcodec_enc_ctx * ctx,struct v4l2_format * f,const struct mtk_video_fmt * fmt)294 static int vidioc_try_fmt_out(struct mtk_vcodec_enc_ctx *ctx, struct v4l2_format *f,
295 const struct mtk_video_fmt *fmt)
296 {
297 struct v4l2_pix_format_mplane *pix_fmt_mp = &f->fmt.pix_mp;
298 int tmp_w, tmp_h;
299 unsigned int max_width, max_height;
300
301 pix_fmt_mp->field = V4L2_FIELD_NONE;
302
303 if (ctx->dev->enc_capability & MTK_VENC_4K_CAPABILITY_ENABLE) {
304 max_width = MTK_VENC_4K_MAX_W;
305 max_height = MTK_VENC_4K_MAX_H;
306 } else {
307 max_width = MTK_VENC_HD_MAX_W;
308 max_height = MTK_VENC_HD_MAX_H;
309 }
310
311 pix_fmt_mp->height = clamp(pix_fmt_mp->height, MTK_VENC_MIN_H, max_height);
312 pix_fmt_mp->width = clamp(pix_fmt_mp->width, MTK_VENC_MIN_W, max_width);
313
314 /* find next closer width align 16, heign align 32, size align
315 * 64 rectangle
316 */
317 tmp_w = pix_fmt_mp->width;
318 tmp_h = pix_fmt_mp->height;
319 v4l_bound_align_image(&pix_fmt_mp->width,
320 MTK_VENC_MIN_W,
321 max_width, 4,
322 &pix_fmt_mp->height,
323 MTK_VENC_MIN_H,
324 max_height, 5, 6);
325
326 if (pix_fmt_mp->width < tmp_w && (pix_fmt_mp->width + 16) <= max_width)
327 pix_fmt_mp->width += 16;
328 if (pix_fmt_mp->height < tmp_h && (pix_fmt_mp->height + 32) <= max_height)
329 pix_fmt_mp->height += 32;
330
331 mtk_v4l2_venc_dbg(0, ctx,
332 "before resize wxh=%dx%d, after resize wxh=%dx%d, sizeimage=%d %d",
333 tmp_w, tmp_h, pix_fmt_mp->width,
334 pix_fmt_mp->height,
335 pix_fmt_mp->plane_fmt[0].sizeimage,
336 pix_fmt_mp->plane_fmt[1].sizeimage);
337
338 pix_fmt_mp->num_planes = fmt->num_planes;
339 pix_fmt_mp->plane_fmt[0].sizeimage =
340 pix_fmt_mp->width * pix_fmt_mp->height +
341 ((ALIGN(pix_fmt_mp->width, 16) * 2) * 16);
342 pix_fmt_mp->plane_fmt[0].bytesperline = pix_fmt_mp->width;
343
344 if (pix_fmt_mp->num_planes == 2) {
345 pix_fmt_mp->plane_fmt[1].sizeimage =
346 (pix_fmt_mp->width * pix_fmt_mp->height) / 2 +
347 (ALIGN(pix_fmt_mp->width, 16) * 16);
348 pix_fmt_mp->plane_fmt[2].sizeimage = 0;
349 pix_fmt_mp->plane_fmt[1].bytesperline =
350 pix_fmt_mp->width;
351 pix_fmt_mp->plane_fmt[2].bytesperline = 0;
352 } else if (pix_fmt_mp->num_planes == 3) {
353 pix_fmt_mp->plane_fmt[1].sizeimage =
354 pix_fmt_mp->plane_fmt[2].sizeimage =
355 (pix_fmt_mp->width * pix_fmt_mp->height) / 4 +
356 ((ALIGN(pix_fmt_mp->width, 16) / 2) * 16);
357 pix_fmt_mp->plane_fmt[1].bytesperline =
358 pix_fmt_mp->plane_fmt[2].bytesperline =
359 pix_fmt_mp->width / 2;
360 }
361
362 pix_fmt_mp->flags = 0;
363
364 return 0;
365 }
366
mtk_venc_set_param(struct mtk_vcodec_enc_ctx * ctx,struct venc_enc_param * param)367 static void mtk_venc_set_param(struct mtk_vcodec_enc_ctx *ctx,
368 struct venc_enc_param *param)
369 {
370 struct mtk_q_data *q_data_src = &ctx->q_data[MTK_Q_DATA_SRC];
371 struct mtk_enc_params *enc_params = &ctx->enc_params;
372
373 switch (q_data_src->fmt->fourcc) {
374 case V4L2_PIX_FMT_YUV420M:
375 param->input_yuv_fmt = VENC_YUV_FORMAT_I420;
376 break;
377 case V4L2_PIX_FMT_YVU420M:
378 param->input_yuv_fmt = VENC_YUV_FORMAT_YV12;
379 break;
380 case V4L2_PIX_FMT_NV12M:
381 param->input_yuv_fmt = VENC_YUV_FORMAT_NV12;
382 break;
383 case V4L2_PIX_FMT_NV21M:
384 param->input_yuv_fmt = VENC_YUV_FORMAT_NV21;
385 break;
386 default:
387 mtk_v4l2_venc_err(ctx, "Unsupported fourcc =%d", q_data_src->fmt->fourcc);
388 break;
389 }
390 param->h264_profile = enc_params->h264_profile;
391 param->h264_level = enc_params->h264_level;
392
393 /* Config visible resolution */
394 param->width = q_data_src->visible_width;
395 param->height = q_data_src->visible_height;
396 /* Config coded resolution */
397 param->buf_width = q_data_src->coded_width;
398 param->buf_height = q_data_src->coded_height;
399 param->frm_rate = enc_params->framerate_num /
400 enc_params->framerate_denom;
401 param->intra_period = enc_params->intra_period;
402 param->gop_size = enc_params->gop_size;
403 param->bitrate = enc_params->bitrate;
404
405 mtk_v4l2_venc_dbg(0, ctx,
406 "fmt 0x%x, P/L %d/%d w/h %d/%d buf %d/%d fps/bps %d/%d gop %d i_per %d",
407 param->input_yuv_fmt, param->h264_profile,
408 param->h264_level, param->width, param->height,
409 param->buf_width, param->buf_height,
410 param->frm_rate, param->bitrate,
411 param->gop_size, param->intra_period);
412 }
413
vidioc_venc_s_fmt_cap(struct file * file,void * priv,struct v4l2_format * f)414 static int vidioc_venc_s_fmt_cap(struct file *file, void *priv,
415 struct v4l2_format *f)
416 {
417 struct mtk_vcodec_enc_ctx *ctx = fh_to_enc_ctx(priv);
418 const struct mtk_vcodec_enc_pdata *pdata = ctx->dev->venc_pdata;
419 struct vb2_queue *vq;
420 struct mtk_q_data *q_data = mtk_venc_get_q_data(ctx, f->type);
421 int i, ret;
422 const struct mtk_video_fmt *fmt;
423
424 vq = v4l2_m2m_get_vq(ctx->m2m_ctx, f->type);
425 if (!vq) {
426 mtk_v4l2_venc_err(ctx, "fail to get vq");
427 return -EINVAL;
428 }
429
430 if (vb2_is_busy(vq)) {
431 mtk_v4l2_venc_err(ctx, "queue busy");
432 return -EBUSY;
433 }
434
435 fmt = mtk_venc_find_format(f->fmt.pix.pixelformat, pdata);
436 if (!fmt) {
437 fmt = &ctx->dev->venc_pdata->capture_formats[0];
438 f->fmt.pix.pixelformat = fmt->fourcc;
439 }
440
441 q_data->fmt = fmt;
442 vidioc_try_fmt_cap(f);
443
444 q_data->coded_width = f->fmt.pix_mp.width;
445 q_data->coded_height = f->fmt.pix_mp.height;
446 q_data->field = f->fmt.pix_mp.field;
447
448 for (i = 0; i < f->fmt.pix_mp.num_planes; i++) {
449 struct v4l2_plane_pix_format *plane_fmt;
450
451 plane_fmt = &f->fmt.pix_mp.plane_fmt[i];
452 q_data->bytesperline[i] = plane_fmt->bytesperline;
453 q_data->sizeimage[i] = plane_fmt->sizeimage;
454 }
455
456 if (ctx->state == MTK_STATE_FREE) {
457 ret = venc_if_init(ctx, q_data->fmt->fourcc);
458 if (ret) {
459 mtk_v4l2_venc_err(ctx, "venc_if_init failed=%d, codec type=%x",
460 ret, q_data->fmt->fourcc);
461 return -EBUSY;
462 }
463 ctx->state = MTK_STATE_INIT;
464 }
465
466 return 0;
467 }
468
vidioc_venc_s_fmt_out(struct file * file,void * priv,struct v4l2_format * f)469 static int vidioc_venc_s_fmt_out(struct file *file, void *priv,
470 struct v4l2_format *f)
471 {
472 struct mtk_vcodec_enc_ctx *ctx = fh_to_enc_ctx(priv);
473 const struct mtk_vcodec_enc_pdata *pdata = ctx->dev->venc_pdata;
474 struct vb2_queue *vq;
475 struct mtk_q_data *q_data = mtk_venc_get_q_data(ctx, f->type);
476 int ret, i;
477 const struct mtk_video_fmt *fmt;
478
479 vq = v4l2_m2m_get_vq(ctx->m2m_ctx, f->type);
480 if (!vq) {
481 mtk_v4l2_venc_err(ctx, "fail to get vq");
482 return -EINVAL;
483 }
484
485 if (vb2_is_busy(vq)) {
486 mtk_v4l2_venc_err(ctx, "queue busy");
487 return -EBUSY;
488 }
489
490 fmt = mtk_venc_find_format(f->fmt.pix.pixelformat, pdata);
491 if (!fmt) {
492 fmt = &ctx->dev->venc_pdata->output_formats[0];
493 f->fmt.pix.pixelformat = fmt->fourcc;
494 }
495
496 ret = vidioc_try_fmt_out(ctx, f, fmt);
497 if (ret)
498 return ret;
499
500 q_data->fmt = fmt;
501 q_data->visible_width = f->fmt.pix_mp.width;
502 q_data->visible_height = f->fmt.pix_mp.height;
503 q_data->coded_width = f->fmt.pix_mp.width;
504 q_data->coded_height = f->fmt.pix_mp.height;
505
506 q_data->field = f->fmt.pix_mp.field;
507 ctx->colorspace = f->fmt.pix_mp.colorspace;
508 ctx->ycbcr_enc = f->fmt.pix_mp.ycbcr_enc;
509 ctx->quantization = f->fmt.pix_mp.quantization;
510 ctx->xfer_func = f->fmt.pix_mp.xfer_func;
511
512 for (i = 0; i < f->fmt.pix_mp.num_planes; i++) {
513 struct v4l2_plane_pix_format *plane_fmt;
514
515 plane_fmt = &f->fmt.pix_mp.plane_fmt[i];
516 q_data->bytesperline[i] = plane_fmt->bytesperline;
517 q_data->sizeimage[i] = plane_fmt->sizeimage;
518 }
519
520 return 0;
521 }
522
vidioc_venc_g_fmt(struct file * file,void * priv,struct v4l2_format * f)523 static int vidioc_venc_g_fmt(struct file *file, void *priv,
524 struct v4l2_format *f)
525 {
526 struct v4l2_pix_format_mplane *pix = &f->fmt.pix_mp;
527 struct mtk_vcodec_enc_ctx *ctx = fh_to_enc_ctx(priv);
528 struct vb2_queue *vq;
529 struct mtk_q_data *q_data = mtk_venc_get_q_data(ctx, f->type);
530 int i;
531
532 vq = v4l2_m2m_get_vq(ctx->m2m_ctx, f->type);
533 if (!vq)
534 return -EINVAL;
535
536
537 pix->width = q_data->coded_width;
538 pix->height = q_data->coded_height;
539 pix->pixelformat = q_data->fmt->fourcc;
540 pix->field = q_data->field;
541 pix->num_planes = q_data->fmt->num_planes;
542 for (i = 0; i < pix->num_planes; i++) {
543 pix->plane_fmt[i].bytesperline = q_data->bytesperline[i];
544 pix->plane_fmt[i].sizeimage = q_data->sizeimage[i];
545 }
546
547 pix->flags = 0;
548 pix->colorspace = ctx->colorspace;
549 pix->ycbcr_enc = ctx->ycbcr_enc;
550 pix->quantization = ctx->quantization;
551 pix->xfer_func = ctx->xfer_func;
552
553 return 0;
554 }
555
vidioc_try_fmt_vid_cap_mplane(struct file * file,void * priv,struct v4l2_format * f)556 static int vidioc_try_fmt_vid_cap_mplane(struct file *file, void *priv,
557 struct v4l2_format *f)
558 {
559 const struct mtk_video_fmt *fmt;
560 struct mtk_vcodec_enc_ctx *ctx = fh_to_enc_ctx(priv);
561 const struct mtk_vcodec_enc_pdata *pdata = ctx->dev->venc_pdata;
562
563 fmt = mtk_venc_find_format(f->fmt.pix.pixelformat, pdata);
564 if (!fmt) {
565 fmt = &ctx->dev->venc_pdata->capture_formats[0];
566 f->fmt.pix.pixelformat = fmt->fourcc;
567 }
568 f->fmt.pix_mp.colorspace = ctx->colorspace;
569 f->fmt.pix_mp.ycbcr_enc = ctx->ycbcr_enc;
570 f->fmt.pix_mp.quantization = ctx->quantization;
571 f->fmt.pix_mp.xfer_func = ctx->xfer_func;
572
573 vidioc_try_fmt_cap(f);
574
575 return 0;
576 }
577
vidioc_try_fmt_vid_out_mplane(struct file * file,void * priv,struct v4l2_format * f)578 static int vidioc_try_fmt_vid_out_mplane(struct file *file, void *priv,
579 struct v4l2_format *f)
580 {
581 const struct mtk_video_fmt *fmt;
582 struct mtk_vcodec_enc_ctx *ctx = fh_to_enc_ctx(priv);
583 const struct mtk_vcodec_enc_pdata *pdata = ctx->dev->venc_pdata;
584
585 fmt = mtk_venc_find_format(f->fmt.pix.pixelformat, pdata);
586 if (!fmt) {
587 fmt = &ctx->dev->venc_pdata->output_formats[0];
588 f->fmt.pix.pixelformat = fmt->fourcc;
589 }
590 if (!f->fmt.pix_mp.colorspace) {
591 f->fmt.pix_mp.colorspace = V4L2_COLORSPACE_REC709;
592 f->fmt.pix_mp.ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT;
593 f->fmt.pix_mp.quantization = V4L2_QUANTIZATION_DEFAULT;
594 f->fmt.pix_mp.xfer_func = V4L2_XFER_FUNC_DEFAULT;
595 }
596
597 return vidioc_try_fmt_out(ctx, f, fmt);
598 }
599
vidioc_venc_g_selection(struct file * file,void * priv,struct v4l2_selection * s)600 static int vidioc_venc_g_selection(struct file *file, void *priv,
601 struct v4l2_selection *s)
602 {
603 struct mtk_vcodec_enc_ctx *ctx = fh_to_enc_ctx(priv);
604 struct mtk_q_data *q_data = mtk_venc_get_q_data(ctx, s->type);
605
606 if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
607 return -EINVAL;
608
609 switch (s->target) {
610 case V4L2_SEL_TGT_CROP_DEFAULT:
611 case V4L2_SEL_TGT_CROP_BOUNDS:
612 s->r.top = 0;
613 s->r.left = 0;
614 s->r.width = q_data->coded_width;
615 s->r.height = q_data->coded_height;
616 break;
617 case V4L2_SEL_TGT_CROP:
618 s->r.top = 0;
619 s->r.left = 0;
620 s->r.width = q_data->visible_width;
621 s->r.height = q_data->visible_height;
622 break;
623 default:
624 return -EINVAL;
625 }
626
627 return 0;
628 }
629
vidioc_venc_s_selection(struct file * file,void * priv,struct v4l2_selection * s)630 static int vidioc_venc_s_selection(struct file *file, void *priv,
631 struct v4l2_selection *s)
632 {
633 struct mtk_vcodec_enc_ctx *ctx = fh_to_enc_ctx(priv);
634 struct mtk_q_data *q_data = mtk_venc_get_q_data(ctx, s->type);
635
636 if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
637 return -EINVAL;
638
639 switch (s->target) {
640 case V4L2_SEL_TGT_CROP:
641 /* Only support crop from (0,0) */
642 s->r.top = 0;
643 s->r.left = 0;
644 s->r.width = min(s->r.width, q_data->coded_width);
645 s->r.height = min(s->r.height, q_data->coded_height);
646 q_data->visible_width = s->r.width;
647 q_data->visible_height = s->r.height;
648 break;
649 default:
650 return -EINVAL;
651 }
652 return 0;
653 }
654
vidioc_venc_qbuf(struct file * file,void * priv,struct v4l2_buffer * buf)655 static int vidioc_venc_qbuf(struct file *file, void *priv,
656 struct v4l2_buffer *buf)
657 {
658 struct mtk_vcodec_enc_ctx *ctx = fh_to_enc_ctx(priv);
659
660 if (ctx->state == MTK_STATE_ABORT) {
661 mtk_v4l2_venc_err(ctx, "[%d] Call on QBUF after unrecoverable error",
662 ctx->id);
663 return -EIO;
664 }
665
666 return v4l2_m2m_qbuf(file, ctx->m2m_ctx, buf);
667 }
668
vidioc_venc_dqbuf(struct file * file,void * priv,struct v4l2_buffer * buf)669 static int vidioc_venc_dqbuf(struct file *file, void *priv,
670 struct v4l2_buffer *buf)
671 {
672 struct mtk_vcodec_enc_ctx *ctx = fh_to_enc_ctx(priv);
673 int ret;
674
675 if (ctx->state == MTK_STATE_ABORT) {
676 mtk_v4l2_venc_err(ctx, "[%d] Call on QBUF after unrecoverable error",
677 ctx->id);
678 return -EIO;
679 }
680
681 ret = v4l2_m2m_dqbuf(file, ctx->m2m_ctx, buf);
682 if (ret)
683 return ret;
684
685 /*
686 * Complete flush if the user dequeued the 0-payload LAST buffer.
687 * We check the payload because a buffer with the LAST flag can also
688 * be seen during resolution changes. If we happen to be flushing at
689 * that time, the last buffer before the resolution changes could be
690 * misinterpreted for the buffer generated by the flush and terminate
691 * it earlier than we want.
692 */
693 if (!V4L2_TYPE_IS_OUTPUT(buf->type) &&
694 buf->flags & V4L2_BUF_FLAG_LAST &&
695 buf->m.planes[0].bytesused == 0 &&
696 ctx->is_flushing) {
697 /*
698 * Last CAPTURE buffer is dequeued, we can allow another flush
699 * to take place.
700 */
701 ctx->is_flushing = false;
702 }
703
704 return 0;
705 }
706
vidioc_encoder_cmd(struct file * file,void * priv,struct v4l2_encoder_cmd * cmd)707 static int vidioc_encoder_cmd(struct file *file, void *priv,
708 struct v4l2_encoder_cmd *cmd)
709 {
710 struct mtk_vcodec_enc_ctx *ctx = fh_to_enc_ctx(priv);
711 struct vb2_queue *src_vq, *dst_vq;
712 int ret;
713
714 if (ctx->state == MTK_STATE_ABORT) {
715 mtk_v4l2_venc_err(ctx, "[%d] Call to CMD after unrecoverable error",
716 ctx->id);
717 return -EIO;
718 }
719
720 ret = v4l2_m2m_ioctl_try_encoder_cmd(file, priv, cmd);
721 if (ret)
722 return ret;
723
724 /* Calling START or STOP is invalid if a flush is in progress */
725 if (ctx->is_flushing)
726 return -EBUSY;
727
728 mtk_v4l2_venc_dbg(1, ctx, "encoder cmd=%u", cmd->cmd);
729
730 dst_vq = v4l2_m2m_get_vq(ctx->m2m_ctx,
731 V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
732 switch (cmd->cmd) {
733 case V4L2_ENC_CMD_STOP:
734 src_vq = v4l2_m2m_get_vq(ctx->m2m_ctx,
735 V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE);
736 if (!vb2_is_streaming(src_vq)) {
737 mtk_v4l2_venc_dbg(1, ctx, "Output stream is off. No need to flush.");
738 return 0;
739 }
740 if (!vb2_is_streaming(dst_vq)) {
741 mtk_v4l2_venc_dbg(1, ctx, "Capture stream is off. No need to flush.");
742 return 0;
743 }
744 ctx->is_flushing = true;
745 v4l2_m2m_buf_queue(ctx->m2m_ctx, &ctx->empty_flush_buf.vb);
746 v4l2_m2m_try_schedule(ctx->m2m_ctx);
747 break;
748
749 case V4L2_ENC_CMD_START:
750 vb2_clear_last_buffer_dequeued(dst_vq);
751 break;
752
753 default:
754 return -EINVAL;
755 }
756
757 return 0;
758 }
759
760 const struct v4l2_ioctl_ops mtk_venc_ioctl_ops = {
761 .vidioc_streamon = v4l2_m2m_ioctl_streamon,
762 .vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
763
764 .vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs,
765 .vidioc_querybuf = v4l2_m2m_ioctl_querybuf,
766 .vidioc_qbuf = vidioc_venc_qbuf,
767 .vidioc_dqbuf = vidioc_venc_dqbuf,
768
769 .vidioc_querycap = vidioc_venc_querycap,
770 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
771 .vidioc_enum_fmt_vid_out = vidioc_enum_fmt_vid_out,
772 .vidioc_enum_framesizes = vidioc_enum_framesizes,
773
774 .vidioc_try_fmt_vid_cap_mplane = vidioc_try_fmt_vid_cap_mplane,
775 .vidioc_try_fmt_vid_out_mplane = vidioc_try_fmt_vid_out_mplane,
776 .vidioc_expbuf = v4l2_m2m_ioctl_expbuf,
777 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
778 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
779
780 .vidioc_s_parm = vidioc_venc_s_parm,
781 .vidioc_g_parm = vidioc_venc_g_parm,
782 .vidioc_s_fmt_vid_cap_mplane = vidioc_venc_s_fmt_cap,
783 .vidioc_s_fmt_vid_out_mplane = vidioc_venc_s_fmt_out,
784
785 .vidioc_g_fmt_vid_cap_mplane = vidioc_venc_g_fmt,
786 .vidioc_g_fmt_vid_out_mplane = vidioc_venc_g_fmt,
787
788 .vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs,
789 .vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf,
790
791 .vidioc_g_selection = vidioc_venc_g_selection,
792 .vidioc_s_selection = vidioc_venc_s_selection,
793
794 .vidioc_encoder_cmd = vidioc_encoder_cmd,
795 .vidioc_try_encoder_cmd = v4l2_m2m_ioctl_try_encoder_cmd,
796 };
797
vb2ops_venc_queue_setup(struct vb2_queue * vq,unsigned int * nbuffers,unsigned int * nplanes,unsigned int sizes[],struct device * alloc_devs[])798 static int vb2ops_venc_queue_setup(struct vb2_queue *vq,
799 unsigned int *nbuffers,
800 unsigned int *nplanes,
801 unsigned int sizes[],
802 struct device *alloc_devs[])
803 {
804 struct mtk_vcodec_enc_ctx *ctx = vb2_get_drv_priv(vq);
805 struct mtk_q_data *q_data = mtk_venc_get_q_data(ctx, vq->type);
806 unsigned int i;
807
808 if (q_data == NULL)
809 return -EINVAL;
810
811 if (*nplanes) {
812 if (*nplanes != q_data->fmt->num_planes)
813 return -EINVAL;
814 for (i = 0; i < *nplanes; i++)
815 if (sizes[i] < q_data->sizeimage[i])
816 return -EINVAL;
817 } else {
818 *nplanes = q_data->fmt->num_planes;
819 for (i = 0; i < *nplanes; i++)
820 sizes[i] = q_data->sizeimage[i];
821 }
822
823 return 0;
824 }
825
vb2ops_venc_buf_prepare(struct vb2_buffer * vb)826 static int vb2ops_venc_buf_prepare(struct vb2_buffer *vb)
827 {
828 struct mtk_vcodec_enc_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
829 struct mtk_q_data *q_data = mtk_venc_get_q_data(ctx, vb->vb2_queue->type);
830 int i;
831
832 for (i = 0; i < q_data->fmt->num_planes; i++) {
833 if (vb2_plane_size(vb, i) < q_data->sizeimage[i]) {
834 mtk_v4l2_venc_err(ctx, "data will not fit into plane %d (%lu < %d)",
835 i, vb2_plane_size(vb, i), q_data->sizeimage[i]);
836 return -EINVAL;
837 }
838 }
839
840 return 0;
841 }
842
vb2ops_venc_buf_queue(struct vb2_buffer * vb)843 static void vb2ops_venc_buf_queue(struct vb2_buffer *vb)
844 {
845 struct mtk_vcodec_enc_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
846 struct vb2_v4l2_buffer *vb2_v4l2 =
847 container_of(vb, struct vb2_v4l2_buffer, vb2_buf);
848
849 struct mtk_video_enc_buf *mtk_buf =
850 container_of(vb2_v4l2, struct mtk_video_enc_buf,
851 m2m_buf.vb);
852
853 if ((vb->vb2_queue->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) &&
854 (ctx->param_change != MTK_ENCODE_PARAM_NONE)) {
855 mtk_v4l2_venc_dbg(1, ctx, "[%d] Before id=%d encode parameter change %x",
856 ctx->id, vb2_v4l2->vb2_buf.index, ctx->param_change);
857 mtk_buf->param_change = ctx->param_change;
858 mtk_buf->enc_params = ctx->enc_params;
859 ctx->param_change = MTK_ENCODE_PARAM_NONE;
860 }
861
862 v4l2_m2m_buf_queue(ctx->m2m_ctx, to_vb2_v4l2_buffer(vb));
863 }
864
vb2ops_venc_start_streaming(struct vb2_queue * q,unsigned int count)865 static int vb2ops_venc_start_streaming(struct vb2_queue *q, unsigned int count)
866 {
867 struct mtk_vcodec_enc_ctx *ctx = vb2_get_drv_priv(q);
868 struct venc_enc_param param;
869 int ret, pm_ret;
870 int i;
871
872 /* Once state turn into MTK_STATE_ABORT, we need stop_streaming
873 * to clear it
874 */
875 if ((ctx->state == MTK_STATE_ABORT) || (ctx->state == MTK_STATE_FREE)) {
876 ret = -EIO;
877 goto err_start_stream;
878 }
879
880 /* Do the initialization when both start_streaming have been called */
881 if (V4L2_TYPE_IS_OUTPUT(q->type)) {
882 if (!vb2_start_streaming_called(&ctx->m2m_ctx->cap_q_ctx.q))
883 return 0;
884 } else {
885 if (!vb2_start_streaming_called(&ctx->m2m_ctx->out_q_ctx.q))
886 return 0;
887 }
888
889 ret = pm_runtime_resume_and_get(&ctx->dev->plat_dev->dev);
890 if (ret < 0) {
891 mtk_v4l2_venc_err(ctx, "pm_runtime_resume_and_get fail %d", ret);
892 goto err_start_stream;
893 }
894
895 mtk_venc_set_param(ctx, ¶m);
896 ret = venc_if_set_param(ctx, VENC_SET_PARAM_ENC, ¶m);
897 if (ret) {
898 mtk_v4l2_venc_err(ctx, "venc_if_set_param failed=%d", ret);
899 ctx->state = MTK_STATE_ABORT;
900 goto err_set_param;
901 }
902 ctx->param_change = MTK_ENCODE_PARAM_NONE;
903
904 if ((ctx->q_data[MTK_Q_DATA_DST].fmt->fourcc == V4L2_PIX_FMT_H264) &&
905 (ctx->enc_params.seq_hdr_mode !=
906 V4L2_MPEG_VIDEO_HEADER_MODE_SEPARATE)) {
907 ret = venc_if_set_param(ctx,
908 VENC_SET_PARAM_PREPEND_HEADER,
909 NULL);
910 if (ret) {
911 mtk_v4l2_venc_err(ctx, "venc_if_set_param failed=%d", ret);
912 ctx->state = MTK_STATE_ABORT;
913 goto err_set_param;
914 }
915 ctx->state = MTK_STATE_HEADER;
916 }
917
918 return 0;
919
920 err_set_param:
921 pm_ret = pm_runtime_put(&ctx->dev->plat_dev->dev);
922 if (pm_ret < 0)
923 mtk_v4l2_venc_err(ctx, "pm_runtime_put fail %d", pm_ret);
924
925 err_start_stream:
926 for (i = 0; i < q->num_buffers; ++i) {
927 struct vb2_buffer *buf = vb2_get_buffer(q, i);
928
929 /*
930 * FIXME: This check is not needed as only active buffers
931 * can be marked as done.
932 */
933 if (buf && buf->state == VB2_BUF_STATE_ACTIVE) {
934 mtk_v4l2_venc_dbg(0, ctx, "[%d] id=%d, type=%d, %d->VB2_BUF_STATE_QUEUED",
935 ctx->id, i, q->type, (int)buf->state);
936 v4l2_m2m_buf_done(to_vb2_v4l2_buffer(buf),
937 VB2_BUF_STATE_QUEUED);
938 }
939 }
940
941 return ret;
942 }
943
vb2ops_venc_stop_streaming(struct vb2_queue * q)944 static void vb2ops_venc_stop_streaming(struct vb2_queue *q)
945 {
946 struct mtk_vcodec_enc_ctx *ctx = vb2_get_drv_priv(q);
947 struct vb2_v4l2_buffer *src_buf, *dst_buf;
948 int ret;
949
950 mtk_v4l2_venc_dbg(2, ctx, "[%d]-> type=%d", ctx->id, q->type);
951
952 if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
953 while ((dst_buf = v4l2_m2m_dst_buf_remove(ctx->m2m_ctx))) {
954 vb2_set_plane_payload(&dst_buf->vb2_buf, 0, 0);
955 v4l2_m2m_buf_done(dst_buf, VB2_BUF_STATE_ERROR);
956 }
957 /* STREAMOFF on the CAPTURE queue completes any ongoing flush */
958 if (ctx->is_flushing) {
959 struct v4l2_m2m_buffer *b, *n;
960
961 mtk_v4l2_venc_dbg(1, ctx, "STREAMOFF called while flushing");
962 /*
963 * STREAMOFF could be called before the flush buffer is
964 * dequeued. Check whether empty flush buf is still in
965 * queue before removing it.
966 */
967 v4l2_m2m_for_each_src_buf_safe(ctx->m2m_ctx, b, n) {
968 if (b == &ctx->empty_flush_buf) {
969 v4l2_m2m_src_buf_remove_by_buf(ctx->m2m_ctx, &b->vb);
970 break;
971 }
972 }
973 ctx->is_flushing = false;
974 }
975 } else {
976 while ((src_buf = v4l2_m2m_src_buf_remove(ctx->m2m_ctx))) {
977 if (src_buf != &ctx->empty_flush_buf.vb)
978 v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_ERROR);
979 }
980 if (ctx->is_flushing) {
981 /*
982 * If we are in the middle of a flush, put the flush
983 * buffer back into the queue so the next CAPTURE
984 * buffer gets returned with the LAST flag set.
985 */
986 v4l2_m2m_buf_queue(ctx->m2m_ctx,
987 &ctx->empty_flush_buf.vb);
988 }
989 }
990
991 if ((q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
992 vb2_is_streaming(&ctx->m2m_ctx->out_q_ctx.q)) ||
993 (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE &&
994 vb2_is_streaming(&ctx->m2m_ctx->cap_q_ctx.q))) {
995 mtk_v4l2_venc_dbg(1, ctx, "[%d]-> q type %d out=%d cap=%d",
996 ctx->id, q->type,
997 vb2_is_streaming(&ctx->m2m_ctx->out_q_ctx.q),
998 vb2_is_streaming(&ctx->m2m_ctx->cap_q_ctx.q));
999 return;
1000 }
1001
1002 /* Release the encoder if both streams are stopped. */
1003 ret = venc_if_deinit(ctx);
1004 if (ret)
1005 mtk_v4l2_venc_err(ctx, "venc_if_deinit failed=%d", ret);
1006
1007 ret = pm_runtime_put(&ctx->dev->plat_dev->dev);
1008 if (ret < 0)
1009 mtk_v4l2_venc_err(ctx, "pm_runtime_put fail %d", ret);
1010
1011 ctx->state = MTK_STATE_FREE;
1012 }
1013
vb2ops_venc_buf_out_validate(struct vb2_buffer * vb)1014 static int vb2ops_venc_buf_out_validate(struct vb2_buffer *vb)
1015 {
1016 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
1017
1018 vbuf->field = V4L2_FIELD_NONE;
1019 return 0;
1020 }
1021
1022 static const struct vb2_ops mtk_venc_vb2_ops = {
1023 .queue_setup = vb2ops_venc_queue_setup,
1024 .buf_out_validate = vb2ops_venc_buf_out_validate,
1025 .buf_prepare = vb2ops_venc_buf_prepare,
1026 .buf_queue = vb2ops_venc_buf_queue,
1027 .wait_prepare = vb2_ops_wait_prepare,
1028 .wait_finish = vb2_ops_wait_finish,
1029 .start_streaming = vb2ops_venc_start_streaming,
1030 .stop_streaming = vb2ops_venc_stop_streaming,
1031 };
1032
mtk_venc_encode_header(void * priv)1033 static int mtk_venc_encode_header(void *priv)
1034 {
1035 struct mtk_vcodec_enc_ctx *ctx = priv;
1036 int ret;
1037 struct vb2_v4l2_buffer *src_buf, *dst_buf;
1038 struct mtk_vcodec_mem bs_buf;
1039 struct venc_done_result enc_result;
1040
1041 dst_buf = v4l2_m2m_dst_buf_remove(ctx->m2m_ctx);
1042 if (!dst_buf) {
1043 mtk_v4l2_venc_dbg(1, ctx, "No dst buffer");
1044 return -EINVAL;
1045 }
1046
1047 bs_buf.va = vb2_plane_vaddr(&dst_buf->vb2_buf, 0);
1048 bs_buf.dma_addr = vb2_dma_contig_plane_dma_addr(&dst_buf->vb2_buf, 0);
1049 bs_buf.size = (size_t)dst_buf->vb2_buf.planes[0].length;
1050
1051 mtk_v4l2_venc_dbg(1, ctx,
1052 "[%d] buf id=%d va=0x%p dma_addr=0x%llx size=%zu",
1053 ctx->id, dst_buf->vb2_buf.index, bs_buf.va,
1054 (u64)bs_buf.dma_addr, bs_buf.size);
1055
1056 ret = venc_if_encode(ctx,
1057 VENC_START_OPT_ENCODE_SEQUENCE_HEADER,
1058 NULL, &bs_buf, &enc_result);
1059
1060 if (ret) {
1061 vb2_set_plane_payload(&dst_buf->vb2_buf, 0, 0);
1062 ctx->state = MTK_STATE_ABORT;
1063 v4l2_m2m_buf_done(dst_buf, VB2_BUF_STATE_ERROR);
1064 mtk_v4l2_venc_err(ctx, "venc_if_encode failed=%d", ret);
1065 return -EINVAL;
1066 }
1067 src_buf = v4l2_m2m_next_src_buf(ctx->m2m_ctx);
1068 if (src_buf) {
1069 dst_buf->vb2_buf.timestamp = src_buf->vb2_buf.timestamp;
1070 dst_buf->timecode = src_buf->timecode;
1071 } else {
1072 mtk_v4l2_venc_err(ctx, "No timestamp for the header buffer.");
1073 }
1074
1075 ctx->state = MTK_STATE_HEADER;
1076 vb2_set_plane_payload(&dst_buf->vb2_buf, 0, enc_result.bs_size);
1077 v4l2_m2m_buf_done(dst_buf, VB2_BUF_STATE_DONE);
1078
1079 return 0;
1080 }
1081
mtk_venc_param_change(struct mtk_vcodec_enc_ctx * ctx)1082 static int mtk_venc_param_change(struct mtk_vcodec_enc_ctx *ctx)
1083 {
1084 struct venc_enc_param enc_prm;
1085 struct vb2_v4l2_buffer *vb2_v4l2 = v4l2_m2m_next_src_buf(ctx->m2m_ctx);
1086 struct mtk_video_enc_buf *mtk_buf;
1087 int ret = 0;
1088
1089 /* Don't upcast the empty flush buffer */
1090 if (vb2_v4l2 == &ctx->empty_flush_buf.vb)
1091 return 0;
1092
1093 mtk_buf = container_of(vb2_v4l2, struct mtk_video_enc_buf, m2m_buf.vb);
1094
1095 memset(&enc_prm, 0, sizeof(enc_prm));
1096 if (mtk_buf->param_change == MTK_ENCODE_PARAM_NONE)
1097 return 0;
1098
1099 if (mtk_buf->param_change & MTK_ENCODE_PARAM_BITRATE) {
1100 enc_prm.bitrate = mtk_buf->enc_params.bitrate;
1101 mtk_v4l2_venc_dbg(1, ctx, "[%d] id=%d, change param br=%d",
1102 ctx->id, vb2_v4l2->vb2_buf.index, enc_prm.bitrate);
1103 ret |= venc_if_set_param(ctx,
1104 VENC_SET_PARAM_ADJUST_BITRATE,
1105 &enc_prm);
1106 }
1107 if (!ret && mtk_buf->param_change & MTK_ENCODE_PARAM_FRAMERATE) {
1108 enc_prm.frm_rate = mtk_buf->enc_params.framerate_num /
1109 mtk_buf->enc_params.framerate_denom;
1110 mtk_v4l2_venc_dbg(1, ctx, "[%d] id=%d, change param fr=%d",
1111 ctx->id, vb2_v4l2->vb2_buf.index, enc_prm.frm_rate);
1112 ret |= venc_if_set_param(ctx,
1113 VENC_SET_PARAM_ADJUST_FRAMERATE,
1114 &enc_prm);
1115 }
1116 if (!ret && mtk_buf->param_change & MTK_ENCODE_PARAM_GOP_SIZE) {
1117 enc_prm.gop_size = mtk_buf->enc_params.gop_size;
1118 mtk_v4l2_venc_dbg(1, ctx, "change param intra period=%d", enc_prm.gop_size);
1119 ret |= venc_if_set_param(ctx,
1120 VENC_SET_PARAM_GOP_SIZE,
1121 &enc_prm);
1122 }
1123 if (!ret && mtk_buf->param_change & MTK_ENCODE_PARAM_FORCE_INTRA) {
1124 mtk_v4l2_venc_dbg(1, ctx, "[%d] id=%d, change param force I=%d",
1125 ctx->id, vb2_v4l2->vb2_buf.index,
1126 mtk_buf->enc_params.force_intra);
1127 if (mtk_buf->enc_params.force_intra)
1128 ret |= venc_if_set_param(ctx,
1129 VENC_SET_PARAM_FORCE_INTRA,
1130 NULL);
1131 }
1132
1133 mtk_buf->param_change = MTK_ENCODE_PARAM_NONE;
1134
1135 if (ret) {
1136 ctx->state = MTK_STATE_ABORT;
1137 mtk_v4l2_venc_err(ctx, "venc_if_set_param %d failed=%d",
1138 mtk_buf->param_change, ret);
1139 return -1;
1140 }
1141
1142 return 0;
1143 }
1144
1145 /*
1146 * v4l2_m2m_streamoff() holds dev_mutex and waits mtk_venc_worker()
1147 * to call v4l2_m2m_job_finish().
1148 * If mtk_venc_worker() tries to acquire dev_mutex, it will deadlock.
1149 * So this function must not try to acquire dev->dev_mutex.
1150 * This means v4l2 ioctls and mtk_venc_worker() can run at the same time.
1151 * mtk_venc_worker() should be carefully implemented to avoid bugs.
1152 */
mtk_venc_worker(struct work_struct * work)1153 static void mtk_venc_worker(struct work_struct *work)
1154 {
1155 struct mtk_vcodec_enc_ctx *ctx = container_of(work, struct mtk_vcodec_enc_ctx,
1156 encode_work);
1157 struct vb2_v4l2_buffer *src_buf, *dst_buf;
1158 struct venc_frm_buf frm_buf;
1159 struct mtk_vcodec_mem bs_buf;
1160 struct venc_done_result enc_result;
1161 int ret, i;
1162
1163 /* check dst_buf, dst_buf may be removed in device_run
1164 * to stored encdoe header so we need check dst_buf and
1165 * call job_finish here to prevent recursion
1166 */
1167 dst_buf = v4l2_m2m_dst_buf_remove(ctx->m2m_ctx);
1168 if (!dst_buf) {
1169 v4l2_m2m_job_finish(ctx->dev->m2m_dev_enc, ctx->m2m_ctx);
1170 return;
1171 }
1172
1173 src_buf = v4l2_m2m_src_buf_remove(ctx->m2m_ctx);
1174
1175 /*
1176 * If we see the flush buffer, send an empty buffer with the LAST flag
1177 * to the client. is_flushing will be reset at the time the buffer
1178 * is dequeued.
1179 */
1180 if (src_buf == &ctx->empty_flush_buf.vb) {
1181 vb2_set_plane_payload(&dst_buf->vb2_buf, 0, 0);
1182 dst_buf->flags |= V4L2_BUF_FLAG_LAST;
1183 v4l2_m2m_buf_done(dst_buf, VB2_BUF_STATE_DONE);
1184 v4l2_m2m_job_finish(ctx->dev->m2m_dev_enc, ctx->m2m_ctx);
1185 return;
1186 }
1187
1188 memset(&frm_buf, 0, sizeof(frm_buf));
1189 for (i = 0; i < src_buf->vb2_buf.num_planes ; i++) {
1190 frm_buf.fb_addr[i].dma_addr =
1191 vb2_dma_contig_plane_dma_addr(&src_buf->vb2_buf, i);
1192 frm_buf.fb_addr[i].size =
1193 (size_t)src_buf->vb2_buf.planes[i].length;
1194 }
1195 bs_buf.va = vb2_plane_vaddr(&dst_buf->vb2_buf, 0);
1196 bs_buf.dma_addr = vb2_dma_contig_plane_dma_addr(&dst_buf->vb2_buf, 0);
1197 bs_buf.size = (size_t)dst_buf->vb2_buf.planes[0].length;
1198
1199 mtk_v4l2_venc_dbg(2, ctx,
1200 "Framebuf PA=%llx Size=0x%zx;PA=0x%llx Size=0x%zx;PA=0x%llx Size=%zu",
1201 (u64)frm_buf.fb_addr[0].dma_addr, frm_buf.fb_addr[0].size,
1202 (u64)frm_buf.fb_addr[1].dma_addr, frm_buf.fb_addr[1].size,
1203 (u64)frm_buf.fb_addr[2].dma_addr, frm_buf.fb_addr[2].size);
1204
1205 ret = venc_if_encode(ctx, VENC_START_OPT_ENCODE_FRAME,
1206 &frm_buf, &bs_buf, &enc_result);
1207
1208 dst_buf->vb2_buf.timestamp = src_buf->vb2_buf.timestamp;
1209 dst_buf->timecode = src_buf->timecode;
1210
1211 if (enc_result.is_key_frm)
1212 dst_buf->flags |= V4L2_BUF_FLAG_KEYFRAME;
1213
1214 if (ret) {
1215 v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_ERROR);
1216 vb2_set_plane_payload(&dst_buf->vb2_buf, 0, 0);
1217 v4l2_m2m_buf_done(dst_buf, VB2_BUF_STATE_ERROR);
1218 mtk_v4l2_venc_err(ctx, "venc_if_encode failed=%d", ret);
1219 } else {
1220 v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_DONE);
1221 vb2_set_plane_payload(&dst_buf->vb2_buf, 0, enc_result.bs_size);
1222 v4l2_m2m_buf_done(dst_buf, VB2_BUF_STATE_DONE);
1223 mtk_v4l2_venc_dbg(2, ctx, "venc_if_encode bs size=%d",
1224 enc_result.bs_size);
1225 }
1226
1227 v4l2_m2m_job_finish(ctx->dev->m2m_dev_enc, ctx->m2m_ctx);
1228
1229 mtk_v4l2_venc_dbg(1, ctx, "<=== src_buf[%d] dst_buf[%d] venc_if_encode ret=%d Size=%u===>",
1230 src_buf->vb2_buf.index, dst_buf->vb2_buf.index, ret, enc_result.bs_size);
1231 }
1232
m2mops_venc_device_run(void * priv)1233 static void m2mops_venc_device_run(void *priv)
1234 {
1235 struct mtk_vcodec_enc_ctx *ctx = priv;
1236
1237 if ((ctx->q_data[MTK_Q_DATA_DST].fmt->fourcc == V4L2_PIX_FMT_H264) &&
1238 (ctx->state != MTK_STATE_HEADER)) {
1239 /* encode h264 sps/pps header */
1240 mtk_venc_encode_header(ctx);
1241 queue_work(ctx->dev->encode_workqueue, &ctx->encode_work);
1242 return;
1243 }
1244
1245 mtk_venc_param_change(ctx);
1246 queue_work(ctx->dev->encode_workqueue, &ctx->encode_work);
1247 }
1248
m2mops_venc_job_ready(void * m2m_priv)1249 static int m2mops_venc_job_ready(void *m2m_priv)
1250 {
1251 struct mtk_vcodec_enc_ctx *ctx = m2m_priv;
1252
1253 if (ctx->state == MTK_STATE_ABORT || ctx->state == MTK_STATE_FREE) {
1254 mtk_v4l2_venc_dbg(3, ctx, "[%d]Not ready: state=0x%x.", ctx->id, ctx->state);
1255 return 0;
1256 }
1257
1258 return 1;
1259 }
1260
m2mops_venc_job_abort(void * priv)1261 static void m2mops_venc_job_abort(void *priv)
1262 {
1263 struct mtk_vcodec_enc_ctx *ctx = priv;
1264
1265 ctx->state = MTK_STATE_ABORT;
1266 }
1267
1268 const struct v4l2_m2m_ops mtk_venc_m2m_ops = {
1269 .device_run = m2mops_venc_device_run,
1270 .job_ready = m2mops_venc_job_ready,
1271 .job_abort = m2mops_venc_job_abort,
1272 };
1273
mtk_vcodec_enc_set_default_params(struct mtk_vcodec_enc_ctx * ctx)1274 void mtk_vcodec_enc_set_default_params(struct mtk_vcodec_enc_ctx *ctx)
1275 {
1276 struct mtk_q_data *q_data;
1277
1278 ctx->m2m_ctx->q_lock = &ctx->q_mutex;
1279 ctx->fh.m2m_ctx = ctx->m2m_ctx;
1280 ctx->fh.ctrl_handler = &ctx->ctrl_hdl;
1281 INIT_WORK(&ctx->encode_work, mtk_venc_worker);
1282
1283 ctx->colorspace = V4L2_COLORSPACE_REC709;
1284 ctx->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT;
1285 ctx->quantization = V4L2_QUANTIZATION_DEFAULT;
1286 ctx->xfer_func = V4L2_XFER_FUNC_DEFAULT;
1287
1288 q_data = &ctx->q_data[MTK_Q_DATA_SRC];
1289 memset(q_data, 0, sizeof(struct mtk_q_data));
1290 q_data->visible_width = DFT_CFG_WIDTH;
1291 q_data->visible_height = DFT_CFG_HEIGHT;
1292 q_data->coded_width = DFT_CFG_WIDTH;
1293 q_data->coded_height = DFT_CFG_HEIGHT;
1294 q_data->field = V4L2_FIELD_NONE;
1295
1296 q_data->fmt = &ctx->dev->venc_pdata->output_formats[0];
1297
1298 v4l_bound_align_image(&q_data->coded_width,
1299 MTK_VENC_MIN_W,
1300 MTK_VENC_HD_MAX_W, 4,
1301 &q_data->coded_height,
1302 MTK_VENC_MIN_H,
1303 MTK_VENC_HD_MAX_H, 5, 6);
1304
1305 if (q_data->coded_width < DFT_CFG_WIDTH &&
1306 (q_data->coded_width + 16) <= MTK_VENC_HD_MAX_W)
1307 q_data->coded_width += 16;
1308 if (q_data->coded_height < DFT_CFG_HEIGHT &&
1309 (q_data->coded_height + 32) <= MTK_VENC_HD_MAX_H)
1310 q_data->coded_height += 32;
1311
1312 q_data->sizeimage[0] =
1313 q_data->coded_width * q_data->coded_height+
1314 ((ALIGN(q_data->coded_width, 16) * 2) * 16);
1315 q_data->bytesperline[0] = q_data->coded_width;
1316 q_data->sizeimage[1] =
1317 (q_data->coded_width * q_data->coded_height) / 2 +
1318 (ALIGN(q_data->coded_width, 16) * 16);
1319 q_data->bytesperline[1] = q_data->coded_width;
1320
1321 q_data = &ctx->q_data[MTK_Q_DATA_DST];
1322 memset(q_data, 0, sizeof(struct mtk_q_data));
1323 q_data->coded_width = DFT_CFG_WIDTH;
1324 q_data->coded_height = DFT_CFG_HEIGHT;
1325 q_data->fmt = &ctx->dev->venc_pdata->capture_formats[0];
1326 q_data->field = V4L2_FIELD_NONE;
1327 ctx->q_data[MTK_Q_DATA_DST].sizeimage[0] =
1328 DFT_CFG_WIDTH * DFT_CFG_HEIGHT;
1329 ctx->q_data[MTK_Q_DATA_DST].bytesperline[0] = 0;
1330
1331 ctx->enc_params.framerate_num = MTK_DEFAULT_FRAMERATE_NUM;
1332 ctx->enc_params.framerate_denom = MTK_DEFAULT_FRAMERATE_DENOM;
1333 }
1334
mtk_vcodec_enc_ctrls_setup(struct mtk_vcodec_enc_ctx * ctx)1335 int mtk_vcodec_enc_ctrls_setup(struct mtk_vcodec_enc_ctx *ctx)
1336 {
1337 const struct v4l2_ctrl_ops *ops = &mtk_vcodec_enc_ctrl_ops;
1338 struct v4l2_ctrl_handler *handler = &ctx->ctrl_hdl;
1339 u8 h264_max_level;
1340
1341 if (ctx->dev->enc_capability & MTK_VENC_4K_CAPABILITY_ENABLE)
1342 h264_max_level = V4L2_MPEG_VIDEO_H264_LEVEL_5_1;
1343 else
1344 h264_max_level = V4L2_MPEG_VIDEO_H264_LEVEL_4_2;
1345
1346 v4l2_ctrl_handler_init(handler, MTK_MAX_CTRLS_HINT);
1347
1348 v4l2_ctrl_new_std(handler, ops, V4L2_CID_MIN_BUFFERS_FOR_OUTPUT,
1349 1, 1, 1, 1);
1350 v4l2_ctrl_new_std(handler, ops, V4L2_CID_MPEG_VIDEO_BITRATE,
1351 ctx->dev->venc_pdata->min_bitrate,
1352 ctx->dev->venc_pdata->max_bitrate, 1, 4000000);
1353 v4l2_ctrl_new_std(handler, ops, V4L2_CID_MPEG_VIDEO_B_FRAMES,
1354 0, 2, 1, 0);
1355 v4l2_ctrl_new_std(handler, ops, V4L2_CID_MPEG_VIDEO_FRAME_RC_ENABLE,
1356 0, 1, 1, 1);
1357 v4l2_ctrl_new_std(handler, ops, V4L2_CID_MPEG_VIDEO_H264_MAX_QP,
1358 0, 51, 1, 51);
1359 v4l2_ctrl_new_std(handler, ops, V4L2_CID_MPEG_VIDEO_H264_I_PERIOD,
1360 0, 65535, 1, 0);
1361 v4l2_ctrl_new_std(handler, ops, V4L2_CID_MPEG_VIDEO_GOP_SIZE,
1362 0, 65535, 1, 0);
1363 v4l2_ctrl_new_std(handler, ops, V4L2_CID_MPEG_VIDEO_MB_RC_ENABLE,
1364 0, 1, 1, 0);
1365 v4l2_ctrl_new_std(handler, ops, V4L2_CID_MPEG_VIDEO_FORCE_KEY_FRAME,
1366 0, 0, 0, 0);
1367 v4l2_ctrl_new_std_menu(handler, ops,
1368 V4L2_CID_MPEG_VIDEO_HEADER_MODE,
1369 V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME,
1370 0, V4L2_MPEG_VIDEO_HEADER_MODE_SEPARATE);
1371 v4l2_ctrl_new_std_menu(handler, ops, V4L2_CID_MPEG_VIDEO_H264_PROFILE,
1372 V4L2_MPEG_VIDEO_H264_PROFILE_HIGH,
1373 ~((1 << V4L2_MPEG_VIDEO_H264_PROFILE_BASELINE) |
1374 (1 << V4L2_MPEG_VIDEO_H264_PROFILE_MAIN) |
1375 (1 << V4L2_MPEG_VIDEO_H264_PROFILE_HIGH)),
1376 V4L2_MPEG_VIDEO_H264_PROFILE_HIGH);
1377 v4l2_ctrl_new_std_menu(handler, ops, V4L2_CID_MPEG_VIDEO_H264_LEVEL,
1378 h264_max_level,
1379 0, V4L2_MPEG_VIDEO_H264_LEVEL_4_0);
1380 v4l2_ctrl_new_std_menu(handler, ops, V4L2_CID_MPEG_VIDEO_VP8_PROFILE,
1381 V4L2_MPEG_VIDEO_VP8_PROFILE_0, 0, V4L2_MPEG_VIDEO_VP8_PROFILE_0);
1382 v4l2_ctrl_new_std_menu(handler, ops, V4L2_CID_MPEG_VIDEO_BITRATE_MODE,
1383 V4L2_MPEG_VIDEO_BITRATE_MODE_CBR,
1384 ~(1 << V4L2_MPEG_VIDEO_BITRATE_MODE_CBR),
1385 V4L2_MPEG_VIDEO_BITRATE_MODE_CBR);
1386
1387
1388 if (handler->error) {
1389 mtk_v4l2_venc_err(ctx, "Init control handler fail %d", handler->error);
1390 return handler->error;
1391 }
1392
1393 v4l2_ctrl_handler_setup(&ctx->ctrl_hdl);
1394
1395 return 0;
1396 }
1397
mtk_vcodec_enc_queue_init(void * priv,struct vb2_queue * src_vq,struct vb2_queue * dst_vq)1398 int mtk_vcodec_enc_queue_init(void *priv, struct vb2_queue *src_vq,
1399 struct vb2_queue *dst_vq)
1400 {
1401 struct mtk_vcodec_enc_ctx *ctx = priv;
1402 int ret;
1403
1404 /* Note: VB2_USERPTR works with dma-contig because mt8173
1405 * support iommu
1406 * https://patchwork.kernel.org/patch/8335461/
1407 * https://patchwork.kernel.org/patch/7596181/
1408 */
1409 src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
1410 src_vq->io_modes = VB2_DMABUF | VB2_MMAP | VB2_USERPTR;
1411 src_vq->drv_priv = ctx;
1412 src_vq->buf_struct_size = sizeof(struct mtk_video_enc_buf);
1413 src_vq->ops = &mtk_venc_vb2_ops;
1414 src_vq->mem_ops = &vb2_dma_contig_memops;
1415 src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
1416 src_vq->lock = &ctx->q_mutex;
1417 src_vq->dev = &ctx->dev->plat_dev->dev;
1418
1419 ret = vb2_queue_init(src_vq);
1420 if (ret)
1421 return ret;
1422
1423 dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
1424 dst_vq->io_modes = VB2_DMABUF | VB2_MMAP | VB2_USERPTR;
1425 dst_vq->drv_priv = ctx;
1426 dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
1427 dst_vq->ops = &mtk_venc_vb2_ops;
1428 dst_vq->mem_ops = &vb2_dma_contig_memops;
1429 dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
1430 dst_vq->lock = &ctx->q_mutex;
1431 dst_vq->dev = &ctx->dev->plat_dev->dev;
1432
1433 return vb2_queue_init(dst_vq);
1434 }
1435
mtk_venc_unlock(struct mtk_vcodec_enc_ctx * ctx)1436 int mtk_venc_unlock(struct mtk_vcodec_enc_ctx *ctx)
1437 {
1438 struct mtk_vcodec_enc_dev *dev = ctx->dev;
1439
1440 mutex_unlock(&dev->enc_mutex);
1441 return 0;
1442 }
1443
mtk_venc_lock(struct mtk_vcodec_enc_ctx * ctx)1444 int mtk_venc_lock(struct mtk_vcodec_enc_ctx *ctx)
1445 {
1446 struct mtk_vcodec_enc_dev *dev = ctx->dev;
1447
1448 mutex_lock(&dev->enc_mutex);
1449 return 0;
1450 }
1451
mtk_vcodec_enc_release(struct mtk_vcodec_enc_ctx * ctx)1452 void mtk_vcodec_enc_release(struct mtk_vcodec_enc_ctx *ctx)
1453 {
1454 int ret = venc_if_deinit(ctx);
1455
1456 if (ret)
1457 mtk_v4l2_venc_err(ctx, "venc_if_deinit failed=%d", ret);
1458
1459 ctx->state = MTK_STATE_FREE;
1460 }
1461
