1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * Copyright (c) 2022 MediaTek Inc.
4 * Author: Ping-Hsun Wu <ping-hsun.wu@mediatek.com>
5 */
6
7 #include <linux/platform_device.h>
8 #include <media/v4l2-ioctl.h>
9 #include <media/v4l2-event.h>
10 #include <media/videobuf2-dma-contig.h>
11 #include "mtk-mdp3-m2m.h"
12
fh_to_ctx(struct v4l2_fh * fh)13 static inline struct mdp_m2m_ctx *fh_to_ctx(struct v4l2_fh *fh)
14 {
15 return container_of(fh, struct mdp_m2m_ctx, fh);
16 }
17
ctrl_to_ctx(struct v4l2_ctrl * ctrl)18 static inline struct mdp_m2m_ctx *ctrl_to_ctx(struct v4l2_ctrl *ctrl)
19 {
20 return container_of(ctrl->handler, struct mdp_m2m_ctx, ctrl_handler);
21 }
22
ctx_get_frame(struct mdp_m2m_ctx * ctx,enum v4l2_buf_type type)23 static inline struct mdp_frame *ctx_get_frame(struct mdp_m2m_ctx *ctx,
24 enum v4l2_buf_type type)
25 {
26 if (V4L2_TYPE_IS_OUTPUT(type))
27 return &ctx->curr_param.output;
28 else
29 return &ctx->curr_param.captures[0];
30 }
31
mdp_m2m_ctx_set_state(struct mdp_m2m_ctx * ctx,u32 state)32 static inline void mdp_m2m_ctx_set_state(struct mdp_m2m_ctx *ctx, u32 state)
33 {
34 atomic_or(state, &ctx->curr_param.state);
35 }
36
mdp_m2m_ctx_is_state_set(struct mdp_m2m_ctx * ctx,u32 mask)37 static inline bool mdp_m2m_ctx_is_state_set(struct mdp_m2m_ctx *ctx, u32 mask)
38 {
39 return ((atomic_read(&ctx->curr_param.state) & mask) == mask);
40 }
41
mdp_m2m_process_done(void * priv,int vb_state)42 static void mdp_m2m_process_done(void *priv, int vb_state)
43 {
44 struct mdp_m2m_ctx *ctx = priv;
45 struct vb2_v4l2_buffer *src_vbuf, *dst_vbuf;
46
47 src_vbuf = (struct vb2_v4l2_buffer *)
48 v4l2_m2m_src_buf_remove(ctx->m2m_ctx);
49 dst_vbuf = (struct vb2_v4l2_buffer *)
50 v4l2_m2m_dst_buf_remove(ctx->m2m_ctx);
51 ctx->curr_param.frame_no = ctx->frame_count[MDP_M2M_SRC];
52 src_vbuf->sequence = ctx->frame_count[MDP_M2M_SRC]++;
53 dst_vbuf->sequence = ctx->frame_count[MDP_M2M_DST]++;
54 v4l2_m2m_buf_copy_metadata(src_vbuf, dst_vbuf, true);
55
56 v4l2_m2m_buf_done(src_vbuf, vb_state);
57 v4l2_m2m_buf_done(dst_vbuf, vb_state);
58 v4l2_m2m_job_finish(ctx->mdp_dev->m2m_dev, ctx->m2m_ctx);
59 }
60
mdp_m2m_device_run(void * priv)61 static void mdp_m2m_device_run(void *priv)
62 {
63 struct mdp_m2m_ctx *ctx = priv;
64 struct mdp_frame *frame;
65 struct vb2_v4l2_buffer *src_vb, *dst_vb;
66 struct img_ipi_frameparam param = {};
67 struct mdp_cmdq_param task = {};
68 enum vb2_buffer_state vb_state = VB2_BUF_STATE_ERROR;
69 int ret;
70
71 if (mdp_m2m_ctx_is_state_set(ctx, MDP_M2M_CTX_ERROR)) {
72 dev_err(&ctx->mdp_dev->pdev->dev,
73 "mdp_m2m_ctx is in error state\n");
74 goto worker_end;
75 }
76
77 param.frame_no = ctx->curr_param.frame_no;
78 param.type = ctx->curr_param.type;
79 param.num_inputs = 1;
80 param.num_outputs = 1;
81
82 frame = ctx_get_frame(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE);
83 src_vb = v4l2_m2m_next_src_buf(ctx->m2m_ctx);
84 mdp_set_src_config(¶m.inputs[0], frame, &src_vb->vb2_buf);
85
86 frame = ctx_get_frame(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
87 dst_vb = v4l2_m2m_next_dst_buf(ctx->m2m_ctx);
88 mdp_set_dst_config(¶m.outputs[0], frame, &dst_vb->vb2_buf);
89
90 ret = mdp_vpu_process(&ctx->mdp_dev->vpu, ¶m);
91 if (ret) {
92 dev_err(&ctx->mdp_dev->pdev->dev,
93 "VPU MDP process failed: %d\n", ret);
94 goto worker_end;
95 }
96
97 task.config = ctx->mdp_dev->vpu.config;
98 task.param = ¶m;
99 task.composes[0] = &frame->compose;
100 task.cmdq_cb = NULL;
101 task.cb_data = NULL;
102 task.mdp_ctx = ctx;
103
104 ret = mdp_cmdq_send(ctx->mdp_dev, &task);
105 if (ret) {
106 dev_err(&ctx->mdp_dev->pdev->dev,
107 "CMDQ sendtask failed: %d\n", ret);
108 goto worker_end;
109 }
110
111 return;
112
113 worker_end:
114 mdp_m2m_process_done(ctx, vb_state);
115 }
116
mdp_m2m_start_streaming(struct vb2_queue * q,unsigned int count)117 static int mdp_m2m_start_streaming(struct vb2_queue *q, unsigned int count)
118 {
119 struct mdp_m2m_ctx *ctx = vb2_get_drv_priv(q);
120 struct mdp_frame *capture;
121 struct vb2_queue *vq;
122 int ret;
123 bool out_streaming, cap_streaming;
124
125 if (V4L2_TYPE_IS_OUTPUT(q->type))
126 ctx->frame_count[MDP_M2M_SRC] = 0;
127
128 if (V4L2_TYPE_IS_CAPTURE(q->type))
129 ctx->frame_count[MDP_M2M_DST] = 0;
130
131 capture = ctx_get_frame(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
132 vq = v4l2_m2m_get_src_vq(ctx->m2m_ctx);
133 out_streaming = vb2_is_streaming(vq);
134 vq = v4l2_m2m_get_dst_vq(ctx->m2m_ctx);
135 cap_streaming = vb2_is_streaming(vq);
136
137 /* Check to see if scaling ratio is within supported range */
138 if ((V4L2_TYPE_IS_OUTPUT(q->type) && cap_streaming) ||
139 (V4L2_TYPE_IS_CAPTURE(q->type) && out_streaming)) {
140 ret = mdp_check_scaling_ratio(&capture->crop.c,
141 &capture->compose,
142 capture->rotation,
143 ctx->curr_param.limit);
144 if (ret) {
145 dev_err(&ctx->mdp_dev->pdev->dev,
146 "Out of scaling range\n");
147 return ret;
148 }
149 }
150
151 if (!mdp_m2m_ctx_is_state_set(ctx, MDP_VPU_INIT)) {
152 ret = mdp_vpu_get_locked(ctx->mdp_dev);
153 if (ret) {
154 dev_err(&ctx->mdp_dev->pdev->dev,
155 "VPU init failed %d\n", ret);
156 return -EINVAL;
157 }
158 mdp_m2m_ctx_set_state(ctx, MDP_VPU_INIT);
159 }
160
161 return 0;
162 }
163
mdp_m2m_buf_remove(struct mdp_m2m_ctx * ctx,unsigned int type)164 static struct vb2_v4l2_buffer *mdp_m2m_buf_remove(struct mdp_m2m_ctx *ctx,
165 unsigned int type)
166 {
167 if (V4L2_TYPE_IS_OUTPUT(type))
168 return (struct vb2_v4l2_buffer *)
169 v4l2_m2m_src_buf_remove(ctx->m2m_ctx);
170 else
171 return (struct vb2_v4l2_buffer *)
172 v4l2_m2m_dst_buf_remove(ctx->m2m_ctx);
173 }
174
mdp_m2m_stop_streaming(struct vb2_queue * q)175 static void mdp_m2m_stop_streaming(struct vb2_queue *q)
176 {
177 struct mdp_m2m_ctx *ctx = vb2_get_drv_priv(q);
178 struct vb2_v4l2_buffer *vb;
179
180 vb = mdp_m2m_buf_remove(ctx, q->type);
181 while (vb) {
182 v4l2_m2m_buf_done(vb, VB2_BUF_STATE_ERROR);
183 vb = mdp_m2m_buf_remove(ctx, q->type);
184 }
185 }
186
mdp_m2m_queue_setup(struct vb2_queue * q,unsigned int * num_buffers,unsigned int * num_planes,unsigned int sizes[],struct device * alloc_devs[])187 static int mdp_m2m_queue_setup(struct vb2_queue *q,
188 unsigned int *num_buffers,
189 unsigned int *num_planes, unsigned int sizes[],
190 struct device *alloc_devs[])
191 {
192 struct mdp_m2m_ctx *ctx = vb2_get_drv_priv(q);
193 struct v4l2_pix_format_mplane *pix_mp;
194 u32 i;
195
196 pix_mp = &ctx_get_frame(ctx, q->type)->format.fmt.pix_mp;
197
198 /* from VIDIOC_CREATE_BUFS */
199 if (*num_planes) {
200 if (*num_planes != pix_mp->num_planes)
201 return -EINVAL;
202 for (i = 0; i < pix_mp->num_planes; ++i)
203 if (sizes[i] < pix_mp->plane_fmt[i].sizeimage)
204 return -EINVAL;
205 } else {/* from VIDIOC_REQBUFS */
206 *num_planes = pix_mp->num_planes;
207 for (i = 0; i < pix_mp->num_planes; ++i)
208 sizes[i] = pix_mp->plane_fmt[i].sizeimage;
209 }
210
211 return 0;
212 }
213
mdp_m2m_buf_prepare(struct vb2_buffer * vb)214 static int mdp_m2m_buf_prepare(struct vb2_buffer *vb)
215 {
216 struct mdp_m2m_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
217 struct v4l2_pix_format_mplane *pix_mp;
218 struct vb2_v4l2_buffer *v4l2_buf = to_vb2_v4l2_buffer(vb);
219 u32 i;
220
221 v4l2_buf->field = V4L2_FIELD_NONE;
222
223 if (V4L2_TYPE_IS_CAPTURE(vb->type)) {
224 pix_mp = &ctx_get_frame(ctx, vb->type)->format.fmt.pix_mp;
225 for (i = 0; i < pix_mp->num_planes; ++i) {
226 vb2_set_plane_payload(vb, i,
227 pix_mp->plane_fmt[i].sizeimage);
228 }
229 }
230 return 0;
231 }
232
mdp_m2m_buf_out_validate(struct vb2_buffer * vb)233 static int mdp_m2m_buf_out_validate(struct vb2_buffer *vb)
234 {
235 struct vb2_v4l2_buffer *v4l2_buf = to_vb2_v4l2_buffer(vb);
236
237 v4l2_buf->field = V4L2_FIELD_NONE;
238
239 return 0;
240 }
241
mdp_m2m_buf_queue(struct vb2_buffer * vb)242 static void mdp_m2m_buf_queue(struct vb2_buffer *vb)
243 {
244 struct mdp_m2m_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
245 struct vb2_v4l2_buffer *v4l2_buf = to_vb2_v4l2_buffer(vb);
246
247 v4l2_buf->field = V4L2_FIELD_NONE;
248
249 v4l2_m2m_buf_queue(ctx->m2m_ctx, to_vb2_v4l2_buffer(vb));
250 }
251
252 static const struct vb2_ops mdp_m2m_qops = {
253 .queue_setup = mdp_m2m_queue_setup,
254 .wait_prepare = vb2_ops_wait_prepare,
255 .wait_finish = vb2_ops_wait_finish,
256 .buf_prepare = mdp_m2m_buf_prepare,
257 .start_streaming = mdp_m2m_start_streaming,
258 .stop_streaming = mdp_m2m_stop_streaming,
259 .buf_queue = mdp_m2m_buf_queue,
260 .buf_out_validate = mdp_m2m_buf_out_validate,
261 };
262
mdp_m2m_querycap(struct file * file,void * fh,struct v4l2_capability * cap)263 static int mdp_m2m_querycap(struct file *file, void *fh,
264 struct v4l2_capability *cap)
265 {
266 strscpy(cap->driver, MDP_MODULE_NAME, sizeof(cap->driver));
267 strscpy(cap->card, MDP_DEVICE_NAME, sizeof(cap->card));
268
269 return 0;
270 }
271
mdp_m2m_enum_fmt_mplane(struct file * file,void * fh,struct v4l2_fmtdesc * f)272 static int mdp_m2m_enum_fmt_mplane(struct file *file, void *fh,
273 struct v4l2_fmtdesc *f)
274 {
275 struct mdp_m2m_ctx *ctx = fh_to_ctx(fh);
276
277 return mdp_enum_fmt_mplane(ctx->mdp_dev, f);
278 }
279
mdp_m2m_g_fmt_mplane(struct file * file,void * fh,struct v4l2_format * f)280 static int mdp_m2m_g_fmt_mplane(struct file *file, void *fh,
281 struct v4l2_format *f)
282 {
283 struct mdp_m2m_ctx *ctx = fh_to_ctx(fh);
284 struct mdp_frame *frame;
285 struct v4l2_pix_format_mplane *pix_mp;
286
287 frame = ctx_get_frame(ctx, f->type);
288 *f = frame->format;
289 pix_mp = &f->fmt.pix_mp;
290 pix_mp->colorspace = ctx->curr_param.colorspace;
291 pix_mp->xfer_func = ctx->curr_param.xfer_func;
292 pix_mp->ycbcr_enc = ctx->curr_param.ycbcr_enc;
293 pix_mp->quantization = ctx->curr_param.quant;
294
295 return 0;
296 }
297
mdp_m2m_s_fmt_mplane(struct file * file,void * fh,struct v4l2_format * f)298 static int mdp_m2m_s_fmt_mplane(struct file *file, void *fh,
299 struct v4l2_format *f)
300 {
301 struct mdp_m2m_ctx *ctx = fh_to_ctx(fh);
302 struct mdp_frame *frame = ctx_get_frame(ctx, f->type);
303 struct mdp_frame *capture;
304 const struct mdp_format *fmt;
305 struct vb2_queue *vq;
306
307 fmt = mdp_try_fmt_mplane(ctx->mdp_dev, f, &ctx->curr_param, ctx->id);
308 if (!fmt)
309 return -EINVAL;
310
311 vq = v4l2_m2m_get_vq(ctx->m2m_ctx, f->type);
312 if (vb2_is_busy(vq))
313 return -EBUSY;
314
315 frame->format = *f;
316 frame->mdp_fmt = fmt;
317 frame->ycbcr_prof = mdp_map_ycbcr_prof_mplane(f, fmt->mdp_color);
318 frame->usage = V4L2_TYPE_IS_OUTPUT(f->type) ?
319 MDP_BUFFER_USAGE_HW_READ : MDP_BUFFER_USAGE_MDP;
320
321 capture = ctx_get_frame(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
322 if (V4L2_TYPE_IS_OUTPUT(f->type)) {
323 capture->crop.c.left = 0;
324 capture->crop.c.top = 0;
325 capture->crop.c.width = f->fmt.pix_mp.width;
326 capture->crop.c.height = f->fmt.pix_mp.height;
327 ctx->curr_param.colorspace = f->fmt.pix_mp.colorspace;
328 ctx->curr_param.ycbcr_enc = f->fmt.pix_mp.ycbcr_enc;
329 ctx->curr_param.quant = f->fmt.pix_mp.quantization;
330 ctx->curr_param.xfer_func = f->fmt.pix_mp.xfer_func;
331 } else {
332 capture->compose.left = 0;
333 capture->compose.top = 0;
334 capture->compose.width = f->fmt.pix_mp.width;
335 capture->compose.height = f->fmt.pix_mp.height;
336 }
337
338 return 0;
339 }
340
mdp_m2m_try_fmt_mplane(struct file * file,void * fh,struct v4l2_format * f)341 static int mdp_m2m_try_fmt_mplane(struct file *file, void *fh,
342 struct v4l2_format *f)
343 {
344 struct mdp_m2m_ctx *ctx = fh_to_ctx(fh);
345
346 if (!mdp_try_fmt_mplane(ctx->mdp_dev, f, &ctx->curr_param, ctx->id))
347 return -EINVAL;
348
349 return 0;
350 }
351
mdp_m2m_g_selection(struct file * file,void * fh,struct v4l2_selection * s)352 static int mdp_m2m_g_selection(struct file *file, void *fh,
353 struct v4l2_selection *s)
354 {
355 struct mdp_m2m_ctx *ctx = fh_to_ctx(fh);
356 struct mdp_frame *frame;
357 bool valid = false;
358
359 if (s->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
360 valid = mdp_target_is_crop(s->target);
361 else if (s->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
362 valid = mdp_target_is_compose(s->target);
363
364 if (!valid)
365 return -EINVAL;
366
367 switch (s->target) {
368 case V4L2_SEL_TGT_CROP:
369 if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
370 return -EINVAL;
371 frame = ctx_get_frame(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
372 s->r = frame->crop.c;
373 return 0;
374 case V4L2_SEL_TGT_COMPOSE:
375 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
376 return -EINVAL;
377 frame = ctx_get_frame(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
378 s->r = frame->compose;
379 return 0;
380 case V4L2_SEL_TGT_CROP_DEFAULT:
381 case V4L2_SEL_TGT_CROP_BOUNDS:
382 if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
383 return -EINVAL;
384 frame = ctx_get_frame(ctx, s->type);
385 s->r.left = 0;
386 s->r.top = 0;
387 s->r.width = frame->format.fmt.pix_mp.width;
388 s->r.height = frame->format.fmt.pix_mp.height;
389 return 0;
390 case V4L2_SEL_TGT_COMPOSE_DEFAULT:
391 case V4L2_SEL_TGT_COMPOSE_BOUNDS:
392 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
393 return -EINVAL;
394 frame = ctx_get_frame(ctx, s->type);
395 s->r.left = 0;
396 s->r.top = 0;
397 s->r.width = frame->format.fmt.pix_mp.width;
398 s->r.height = frame->format.fmt.pix_mp.height;
399 return 0;
400 }
401 return -EINVAL;
402 }
403
mdp_m2m_s_selection(struct file * file,void * fh,struct v4l2_selection * s)404 static int mdp_m2m_s_selection(struct file *file, void *fh,
405 struct v4l2_selection *s)
406 {
407 struct mdp_m2m_ctx *ctx = fh_to_ctx(fh);
408 struct mdp_frame *frame = ctx_get_frame(ctx, s->type);
409 struct mdp_frame *capture;
410 struct v4l2_rect r;
411 struct device *dev = &ctx->mdp_dev->pdev->dev;
412 bool valid = false;
413 int ret;
414
415 if (s->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
416 valid = (s->target == V4L2_SEL_TGT_CROP);
417 else if (s->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
418 valid = (s->target == V4L2_SEL_TGT_COMPOSE);
419
420 if (!valid) {
421 dev_dbg(dev, "[%s:%d] invalid type:%u target:%u", __func__,
422 ctx->id, s->type, s->target);
423 return -EINVAL;
424 }
425
426 ret = mdp_try_crop(ctx, &r, s, frame);
427 if (ret)
428 return ret;
429 capture = ctx_get_frame(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
430
431 if (mdp_target_is_crop(s->target))
432 capture->crop.c = r;
433 else
434 capture->compose = r;
435
436 s->r = r;
437
438 return 0;
439 }
440
441 static const struct v4l2_ioctl_ops mdp_m2m_ioctl_ops = {
442 .vidioc_querycap = mdp_m2m_querycap,
443 .vidioc_enum_fmt_vid_cap = mdp_m2m_enum_fmt_mplane,
444 .vidioc_enum_fmt_vid_out = mdp_m2m_enum_fmt_mplane,
445 .vidioc_g_fmt_vid_cap_mplane = mdp_m2m_g_fmt_mplane,
446 .vidioc_g_fmt_vid_out_mplane = mdp_m2m_g_fmt_mplane,
447 .vidioc_s_fmt_vid_cap_mplane = mdp_m2m_s_fmt_mplane,
448 .vidioc_s_fmt_vid_out_mplane = mdp_m2m_s_fmt_mplane,
449 .vidioc_try_fmt_vid_cap_mplane = mdp_m2m_try_fmt_mplane,
450 .vidioc_try_fmt_vid_out_mplane = mdp_m2m_try_fmt_mplane,
451 .vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs,
452 .vidioc_querybuf = v4l2_m2m_ioctl_querybuf,
453 .vidioc_qbuf = v4l2_m2m_ioctl_qbuf,
454 .vidioc_expbuf = v4l2_m2m_ioctl_expbuf,
455 .vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf,
456 .vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs,
457 .vidioc_streamon = v4l2_m2m_ioctl_streamon,
458 .vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
459 .vidioc_g_selection = mdp_m2m_g_selection,
460 .vidioc_s_selection = mdp_m2m_s_selection,
461 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
462 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
463 };
464
mdp_m2m_queue_init(void * priv,struct vb2_queue * src_vq,struct vb2_queue * dst_vq)465 static int mdp_m2m_queue_init(void *priv,
466 struct vb2_queue *src_vq,
467 struct vb2_queue *dst_vq)
468 {
469 struct mdp_m2m_ctx *ctx = priv;
470 int ret;
471
472 src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
473 src_vq->io_modes = VB2_MMAP | VB2_DMABUF;
474 src_vq->ops = &mdp_m2m_qops;
475 src_vq->mem_ops = &vb2_dma_contig_memops;
476 src_vq->drv_priv = ctx;
477 src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
478 src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
479 src_vq->dev = &ctx->mdp_dev->pdev->dev;
480 src_vq->lock = &ctx->ctx_lock;
481
482 ret = vb2_queue_init(src_vq);
483 if (ret)
484 return ret;
485
486 dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
487 dst_vq->io_modes = VB2_MMAP | VB2_DMABUF;
488 dst_vq->ops = &mdp_m2m_qops;
489 dst_vq->mem_ops = &vb2_dma_contig_memops;
490 dst_vq->drv_priv = ctx;
491 dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
492 dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
493 dst_vq->dev = &ctx->mdp_dev->pdev->dev;
494 dst_vq->lock = &ctx->ctx_lock;
495
496 return vb2_queue_init(dst_vq);
497 }
498
mdp_m2m_s_ctrl(struct v4l2_ctrl * ctrl)499 static int mdp_m2m_s_ctrl(struct v4l2_ctrl *ctrl)
500 {
501 struct mdp_m2m_ctx *ctx = ctrl_to_ctx(ctrl);
502 struct mdp_frame *capture;
503
504 capture = ctx_get_frame(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
505 switch (ctrl->id) {
506 case V4L2_CID_HFLIP:
507 capture->hflip = ctrl->val;
508 break;
509 case V4L2_CID_VFLIP:
510 capture->vflip = ctrl->val;
511 break;
512 case V4L2_CID_ROTATE:
513 capture->rotation = ctrl->val;
514 break;
515 }
516
517 return 0;
518 }
519
520 static const struct v4l2_ctrl_ops mdp_m2m_ctrl_ops = {
521 .s_ctrl = mdp_m2m_s_ctrl,
522 };
523
mdp_m2m_ctrls_create(struct mdp_m2m_ctx * ctx)524 static int mdp_m2m_ctrls_create(struct mdp_m2m_ctx *ctx)
525 {
526 v4l2_ctrl_handler_init(&ctx->ctrl_handler, MDP_MAX_CTRLS);
527 ctx->ctrls.hflip = v4l2_ctrl_new_std(&ctx->ctrl_handler,
528 &mdp_m2m_ctrl_ops, V4L2_CID_HFLIP,
529 0, 1, 1, 0);
530 ctx->ctrls.vflip = v4l2_ctrl_new_std(&ctx->ctrl_handler,
531 &mdp_m2m_ctrl_ops, V4L2_CID_VFLIP,
532 0, 1, 1, 0);
533 ctx->ctrls.rotate = v4l2_ctrl_new_std(&ctx->ctrl_handler,
534 &mdp_m2m_ctrl_ops,
535 V4L2_CID_ROTATE, 0, 270, 90, 0);
536
537 if (ctx->ctrl_handler.error) {
538 int err = ctx->ctrl_handler.error;
539
540 v4l2_ctrl_handler_free(&ctx->ctrl_handler);
541 dev_err(&ctx->mdp_dev->pdev->dev,
542 "Failed to register controls\n");
543 return err;
544 }
545 return 0;
546 }
547
mdp_m2m_open(struct file * file)548 static int mdp_m2m_open(struct file *file)
549 {
550 struct video_device *vdev = video_devdata(file);
551 struct mdp_dev *mdp = video_get_drvdata(vdev);
552 struct mdp_m2m_ctx *ctx;
553 struct device *dev = &mdp->pdev->dev;
554 int ret;
555 struct v4l2_format default_format = {};
556 const struct mdp_limit *limit = mdp->mdp_data->def_limit;
557
558 ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
559 if (!ctx)
560 return -ENOMEM;
561
562 if (mutex_lock_interruptible(&mdp->m2m_lock)) {
563 ret = -ERESTARTSYS;
564 goto err_free_ctx;
565 }
566
567 ret = ida_alloc(&mdp->mdp_ida, GFP_KERNEL);
568 if (ret < 0)
569 goto err_unlock_mutex;
570 ctx->id = ret;
571
572 ctx->mdp_dev = mdp;
573
574 v4l2_fh_init(&ctx->fh, vdev);
575 file->private_data = &ctx->fh;
576 ret = mdp_m2m_ctrls_create(ctx);
577 if (ret)
578 goto err_exit_fh;
579
580 /* Use separate control handler per file handle */
581 ctx->fh.ctrl_handler = &ctx->ctrl_handler;
582 v4l2_fh_add(&ctx->fh);
583
584 mutex_init(&ctx->ctx_lock);
585 ctx->m2m_ctx = v4l2_m2m_ctx_init(mdp->m2m_dev, ctx, mdp_m2m_queue_init);
586 if (IS_ERR(ctx->m2m_ctx)) {
587 dev_err(dev, "Failed to initialize m2m context\n");
588 ret = PTR_ERR(ctx->m2m_ctx);
589 goto err_release_handler;
590 }
591 ctx->fh.m2m_ctx = ctx->m2m_ctx;
592
593 ctx->curr_param.ctx = ctx;
594 ret = mdp_frameparam_init(mdp, &ctx->curr_param);
595 if (ret) {
596 dev_err(dev, "Failed to initialize mdp parameter\n");
597 goto err_release_m2m_ctx;
598 }
599
600 mutex_unlock(&mdp->m2m_lock);
601
602 /* Default format */
603 default_format.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
604 default_format.fmt.pix_mp.width = limit->out_limit.wmin;
605 default_format.fmt.pix_mp.height = limit->out_limit.hmin;
606 default_format.fmt.pix_mp.pixelformat = V4L2_PIX_FMT_YUV420M;
607 mdp_m2m_s_fmt_mplane(file, &ctx->fh, &default_format);
608 default_format.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
609 mdp_m2m_s_fmt_mplane(file, &ctx->fh, &default_format);
610
611 dev_dbg(dev, "%s:[%d]", __func__, ctx->id);
612
613 return 0;
614
615 err_release_m2m_ctx:
616 v4l2_m2m_ctx_release(ctx->m2m_ctx);
617 err_release_handler:
618 v4l2_ctrl_handler_free(&ctx->ctrl_handler);
619 v4l2_fh_del(&ctx->fh);
620 err_exit_fh:
621 v4l2_fh_exit(&ctx->fh);
622 ida_free(&mdp->mdp_ida, ctx->id);
623 err_unlock_mutex:
624 mutex_unlock(&mdp->m2m_lock);
625 err_free_ctx:
626 kfree(ctx);
627
628 return ret;
629 }
630
mdp_m2m_release(struct file * file)631 static int mdp_m2m_release(struct file *file)
632 {
633 struct mdp_m2m_ctx *ctx = fh_to_ctx(file->private_data);
634 struct mdp_dev *mdp = video_drvdata(file);
635 struct device *dev = &mdp->pdev->dev;
636
637 mutex_lock(&mdp->m2m_lock);
638 v4l2_m2m_ctx_release(ctx->m2m_ctx);
639 if (mdp_m2m_ctx_is_state_set(ctx, MDP_VPU_INIT))
640 mdp_vpu_put_locked(mdp);
641
642 v4l2_ctrl_handler_free(&ctx->ctrl_handler);
643 v4l2_fh_del(&ctx->fh);
644 v4l2_fh_exit(&ctx->fh);
645 ida_free(&mdp->mdp_ida, ctx->id);
646 mutex_unlock(&mdp->m2m_lock);
647
648 dev_dbg(dev, "%s:[%d]", __func__, ctx->id);
649 kfree(ctx);
650
651 return 0;
652 }
653
654 static const struct v4l2_file_operations mdp_m2m_fops = {
655 .owner = THIS_MODULE,
656 .poll = v4l2_m2m_fop_poll,
657 .unlocked_ioctl = video_ioctl2,
658 .mmap = v4l2_m2m_fop_mmap,
659 .open = mdp_m2m_open,
660 .release = mdp_m2m_release,
661 };
662
663 static const struct v4l2_m2m_ops mdp_m2m_ops = {
664 .device_run = mdp_m2m_device_run,
665 };
666
mdp_m2m_device_register(struct mdp_dev * mdp)667 int mdp_m2m_device_register(struct mdp_dev *mdp)
668 {
669 struct device *dev = &mdp->pdev->dev;
670 int ret = 0;
671
672 mdp->m2m_vdev = video_device_alloc();
673 if (!mdp->m2m_vdev) {
674 dev_err(dev, "Failed to allocate video device\n");
675 ret = -ENOMEM;
676 goto err_video_alloc;
677 }
678 mdp->m2m_vdev->device_caps = V4L2_CAP_VIDEO_M2M_MPLANE |
679 V4L2_CAP_STREAMING;
680 mdp->m2m_vdev->fops = &mdp_m2m_fops;
681 mdp->m2m_vdev->ioctl_ops = &mdp_m2m_ioctl_ops;
682 mdp->m2m_vdev->release = mdp_video_device_release;
683 mdp->m2m_vdev->lock = &mdp->m2m_lock;
684 mdp->m2m_vdev->vfl_dir = VFL_DIR_M2M;
685 mdp->m2m_vdev->v4l2_dev = &mdp->v4l2_dev;
686 snprintf(mdp->m2m_vdev->name, sizeof(mdp->m2m_vdev->name), "%s:m2m",
687 MDP_MODULE_NAME);
688 video_set_drvdata(mdp->m2m_vdev, mdp);
689
690 mdp->m2m_dev = v4l2_m2m_init(&mdp_m2m_ops);
691 if (IS_ERR(mdp->m2m_dev)) {
692 dev_err(dev, "Failed to initialize v4l2-m2m device\n");
693 ret = PTR_ERR(mdp->m2m_dev);
694 goto err_m2m_init;
695 }
696
697 ret = video_register_device(mdp->m2m_vdev, VFL_TYPE_VIDEO, -1);
698 if (ret) {
699 dev_err(dev, "Failed to register video device\n");
700 goto err_video_register;
701 }
702
703 v4l2_info(&mdp->v4l2_dev, "Driver registered as /dev/video%d",
704 mdp->m2m_vdev->num);
705 return 0;
706
707 err_video_register:
708 v4l2_m2m_release(mdp->m2m_dev);
709 err_m2m_init:
710 video_device_release(mdp->m2m_vdev);
711 err_video_alloc:
712
713 return ret;
714 }
715
mdp_m2m_device_unregister(struct mdp_dev * mdp)716 void mdp_m2m_device_unregister(struct mdp_dev *mdp)
717 {
718 video_unregister_device(mdp->m2m_vdev);
719 }
720
mdp_m2m_job_finish(struct mdp_m2m_ctx * ctx)721 void mdp_m2m_job_finish(struct mdp_m2m_ctx *ctx)
722 {
723 enum vb2_buffer_state vb_state = VB2_BUF_STATE_DONE;
724
725 mdp_m2m_process_done(ctx, vb_state);
726 }
727