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16#include <linux/clk.h>
17#include <linux/err.h>
18#include <linux/interrupt.h>
19#include <linux/io.h>
20#include <linux/kernel.h>
21#include <linux/module.h>
22#include <linux/of_platform.h>
23#include <linux/platform_device.h>
24#include <linux/pm_runtime.h>
25#include <linux/slab.h>
26#include <linux/spinlock.h>
27#include <media/v4l2-event.h>
28#include <media/v4l2-mem2mem.h>
29#include <media/v4l2-ioctl.h>
30#include <media/videobuf2-core.h>
31#include <media/videobuf2-dma-contig.h>
32#include <soc/mediatek/smi.h>
33
34#include "mtk_jpeg_hw.h"
35#include "mtk_jpeg_core.h"
36#include "mtk_jpeg_parse.h"
37
38static struct mtk_jpeg_fmt mtk_jpeg_formats[] = {
39 {
40 .fourcc = V4L2_PIX_FMT_JPEG,
41 .colplanes = 1,
42 .flags = MTK_JPEG_FMT_FLAG_DEC_OUTPUT,
43 },
44 {
45 .fourcc = V4L2_PIX_FMT_YUV420M,
46 .h_sample = {4, 2, 2},
47 .v_sample = {4, 2, 2},
48 .colplanes = 3,
49 .h_align = 5,
50 .v_align = 4,
51 .flags = MTK_JPEG_FMT_FLAG_DEC_CAPTURE,
52 },
53 {
54 .fourcc = V4L2_PIX_FMT_YUV422M,
55 .h_sample = {4, 2, 2},
56 .v_sample = {4, 4, 4},
57 .colplanes = 3,
58 .h_align = 5,
59 .v_align = 3,
60 .flags = MTK_JPEG_FMT_FLAG_DEC_CAPTURE,
61 },
62};
63
64#define MTK_JPEG_NUM_FORMATS ARRAY_SIZE(mtk_jpeg_formats)
65
66enum {
67 MTK_JPEG_BUF_FLAGS_INIT = 0,
68 MTK_JPEG_BUF_FLAGS_LAST_FRAME = 1,
69};
70
71struct mtk_jpeg_src_buf {
72 struct vb2_v4l2_buffer b;
73 struct list_head list;
74 int flags;
75 struct mtk_jpeg_dec_param dec_param;
76};
77
78static int debug;
79module_param(debug, int, 0644);
80
81static inline struct mtk_jpeg_ctx *mtk_jpeg_fh_to_ctx(struct v4l2_fh *fh)
82{
83 return container_of(fh, struct mtk_jpeg_ctx, fh);
84}
85
86static inline struct mtk_jpeg_src_buf *mtk_jpeg_vb2_to_srcbuf(
87 struct vb2_buffer *vb)
88{
89 return container_of(to_vb2_v4l2_buffer(vb), struct mtk_jpeg_src_buf, b);
90}
91
92static int mtk_jpeg_querycap(struct file *file, void *priv,
93 struct v4l2_capability *cap)
94{
95 struct mtk_jpeg_dev *jpeg = video_drvdata(file);
96
97 strscpy(cap->driver, MTK_JPEG_NAME " decoder", sizeof(cap->driver));
98 strscpy(cap->card, MTK_JPEG_NAME " decoder", sizeof(cap->card));
99 snprintf(cap->bus_info, sizeof(cap->bus_info), "platform:%s",
100 dev_name(jpeg->dev));
101
102 return 0;
103}
104
105static int mtk_jpeg_enum_fmt(struct mtk_jpeg_fmt *mtk_jpeg_formats, int n,
106 struct v4l2_fmtdesc *f, u32 type)
107{
108 int i, num = 0;
109
110 for (i = 0; i < n; ++i) {
111 if (mtk_jpeg_formats[i].flags & type) {
112 if (num == f->index)
113 break;
114 ++num;
115 }
116 }
117
118 if (i >= n)
119 return -EINVAL;
120
121 f->pixelformat = mtk_jpeg_formats[i].fourcc;
122
123 return 0;
124}
125
126static int mtk_jpeg_enum_fmt_vid_cap(struct file *file, void *priv,
127 struct v4l2_fmtdesc *f)
128{
129 return mtk_jpeg_enum_fmt(mtk_jpeg_formats, MTK_JPEG_NUM_FORMATS, f,
130 MTK_JPEG_FMT_FLAG_DEC_CAPTURE);
131}
132
133static int mtk_jpeg_enum_fmt_vid_out(struct file *file, void *priv,
134 struct v4l2_fmtdesc *f)
135{
136 return mtk_jpeg_enum_fmt(mtk_jpeg_formats, MTK_JPEG_NUM_FORMATS, f,
137 MTK_JPEG_FMT_FLAG_DEC_OUTPUT);
138}
139
140static struct mtk_jpeg_q_data *mtk_jpeg_get_q_data(struct mtk_jpeg_ctx *ctx,
141 enum v4l2_buf_type type)
142{
143 if (V4L2_TYPE_IS_OUTPUT(type))
144 return &ctx->out_q;
145 return &ctx->cap_q;
146}
147
148static struct mtk_jpeg_fmt *mtk_jpeg_find_format(struct mtk_jpeg_ctx *ctx,
149 u32 pixelformat,
150 unsigned int fmt_type)
151{
152 unsigned int k, fmt_flag;
153
154 fmt_flag = (fmt_type == MTK_JPEG_FMT_TYPE_OUTPUT) ?
155 MTK_JPEG_FMT_FLAG_DEC_OUTPUT :
156 MTK_JPEG_FMT_FLAG_DEC_CAPTURE;
157
158 for (k = 0; k < MTK_JPEG_NUM_FORMATS; k++) {
159 struct mtk_jpeg_fmt *fmt = &mtk_jpeg_formats[k];
160
161 if (fmt->fourcc == pixelformat && fmt->flags & fmt_flag)
162 return fmt;
163 }
164
165 return NULL;
166}
167
168static void mtk_jpeg_bound_align_image(u32 *w, unsigned int wmin,
169 unsigned int wmax, unsigned int walign,
170 u32 *h, unsigned int hmin,
171 unsigned int hmax, unsigned int halign)
172{
173 int width, height, w_step, h_step;
174
175 width = *w;
176 height = *h;
177 w_step = 1 << walign;
178 h_step = 1 << halign;
179
180 v4l_bound_align_image(w, wmin, wmax, walign, h, hmin, hmax, halign, 0);
181 if (*w < width && (*w + w_step) <= wmax)
182 *w += w_step;
183 if (*h < height && (*h + h_step) <= hmax)
184 *h += h_step;
185}
186
187static void mtk_jpeg_adjust_fmt_mplane(struct mtk_jpeg_ctx *ctx,
188 struct v4l2_format *f)
189{
190 struct v4l2_pix_format_mplane *pix_mp = &f->fmt.pix_mp;
191 struct mtk_jpeg_q_data *q_data;
192 int i;
193
194 q_data = mtk_jpeg_get_q_data(ctx, f->type);
195
196 pix_mp->width = q_data->w;
197 pix_mp->height = q_data->h;
198 pix_mp->pixelformat = q_data->fmt->fourcc;
199 pix_mp->num_planes = q_data->fmt->colplanes;
200
201 for (i = 0; i < pix_mp->num_planes; i++) {
202 pix_mp->plane_fmt[i].bytesperline = q_data->bytesperline[i];
203 pix_mp->plane_fmt[i].sizeimage = q_data->sizeimage[i];
204 }
205}
206
207static int mtk_jpeg_try_fmt_mplane(struct v4l2_format *f,
208 struct mtk_jpeg_fmt *fmt,
209 struct mtk_jpeg_ctx *ctx, int q_type)
210{
211 struct v4l2_pix_format_mplane *pix_mp = &f->fmt.pix_mp;
212 struct mtk_jpeg_dev *jpeg = ctx->jpeg;
213 int i;
214
215 memset(pix_mp->reserved, 0, sizeof(pix_mp->reserved));
216 pix_mp->field = V4L2_FIELD_NONE;
217
218 if (ctx->state != MTK_JPEG_INIT) {
219 mtk_jpeg_adjust_fmt_mplane(ctx, f);
220 goto end;
221 }
222
223 pix_mp->num_planes = fmt->colplanes;
224 pix_mp->pixelformat = fmt->fourcc;
225
226 if (q_type == MTK_JPEG_FMT_TYPE_OUTPUT) {
227 struct v4l2_plane_pix_format *pfmt = &pix_mp->plane_fmt[0];
228
229 mtk_jpeg_bound_align_image(&pix_mp->width, MTK_JPEG_MIN_WIDTH,
230 MTK_JPEG_MAX_WIDTH, 0,
231 &pix_mp->height, MTK_JPEG_MIN_HEIGHT,
232 MTK_JPEG_MAX_HEIGHT, 0);
233
234 memset(pfmt->reserved, 0, sizeof(pfmt->reserved));
235 pfmt->bytesperline = 0;
236
237 pfmt->sizeimage = mtk_jpeg_align(pfmt->sizeimage, 128);
238 if (pfmt->sizeimage == 0)
239 pfmt->sizeimage = MTK_JPEG_DEFAULT_SIZEIMAGE;
240 goto end;
241 }
242
243
244 mtk_jpeg_bound_align_image(&pix_mp->width, MTK_JPEG_MIN_WIDTH,
245 MTK_JPEG_MAX_WIDTH, fmt->h_align,
246 &pix_mp->height, MTK_JPEG_MIN_HEIGHT,
247 MTK_JPEG_MAX_HEIGHT, fmt->v_align);
248
249 for (i = 0; i < fmt->colplanes; i++) {
250 struct v4l2_plane_pix_format *pfmt = &pix_mp->plane_fmt[i];
251 u32 stride = pix_mp->width * fmt->h_sample[i] / 4;
252 u32 h = pix_mp->height * fmt->v_sample[i] / 4;
253
254 memset(pfmt->reserved, 0, sizeof(pfmt->reserved));
255 pfmt->bytesperline = stride;
256 pfmt->sizeimage = stride * h;
257 }
258end:
259 v4l2_dbg(2, debug, &jpeg->v4l2_dev, "wxh:%ux%u\n",
260 pix_mp->width, pix_mp->height);
261 for (i = 0; i < pix_mp->num_planes; i++) {
262 v4l2_dbg(2, debug, &jpeg->v4l2_dev,
263 "plane[%d] bpl=%u, size=%u\n",
264 i,
265 pix_mp->plane_fmt[i].bytesperline,
266 pix_mp->plane_fmt[i].sizeimage);
267 }
268 return 0;
269}
270
271static int mtk_jpeg_g_fmt_vid_mplane(struct file *file, void *priv,
272 struct v4l2_format *f)
273{
274 struct vb2_queue *vq;
275 struct mtk_jpeg_q_data *q_data = NULL;
276 struct v4l2_pix_format_mplane *pix_mp = &f->fmt.pix_mp;
277 struct mtk_jpeg_ctx *ctx = mtk_jpeg_fh_to_ctx(priv);
278 struct mtk_jpeg_dev *jpeg = ctx->jpeg;
279 int i;
280
281 vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
282 if (!vq)
283 return -EINVAL;
284
285 q_data = mtk_jpeg_get_q_data(ctx, f->type);
286
287 memset(pix_mp->reserved, 0, sizeof(pix_mp->reserved));
288 pix_mp->width = q_data->w;
289 pix_mp->height = q_data->h;
290 pix_mp->field = V4L2_FIELD_NONE;
291 pix_mp->pixelformat = q_data->fmt->fourcc;
292 pix_mp->num_planes = q_data->fmt->colplanes;
293 pix_mp->colorspace = ctx->colorspace;
294 pix_mp->ycbcr_enc = ctx->ycbcr_enc;
295 pix_mp->xfer_func = ctx->xfer_func;
296 pix_mp->quantization = ctx->quantization;
297
298 v4l2_dbg(1, debug, &jpeg->v4l2_dev, "(%d) g_fmt:%c%c%c%c wxh:%ux%u\n",
299 f->type,
300 (pix_mp->pixelformat & 0xff),
301 (pix_mp->pixelformat >> 8 & 0xff),
302 (pix_mp->pixelformat >> 16 & 0xff),
303 (pix_mp->pixelformat >> 24 & 0xff),
304 pix_mp->width, pix_mp->height);
305
306 for (i = 0; i < pix_mp->num_planes; i++) {
307 struct v4l2_plane_pix_format *pfmt = &pix_mp->plane_fmt[i];
308
309 pfmt->bytesperline = q_data->bytesperline[i];
310 pfmt->sizeimage = q_data->sizeimage[i];
311 memset(pfmt->reserved, 0, sizeof(pfmt->reserved));
312
313 v4l2_dbg(1, debug, &jpeg->v4l2_dev,
314 "plane[%d] bpl=%u, size=%u\n",
315 i,
316 pfmt->bytesperline,
317 pfmt->sizeimage);
318 }
319 return 0;
320}
321
322static int mtk_jpeg_try_fmt_vid_cap_mplane(struct file *file, void *priv,
323 struct v4l2_format *f)
324{
325 struct mtk_jpeg_ctx *ctx = mtk_jpeg_fh_to_ctx(priv);
326 struct mtk_jpeg_fmt *fmt;
327
328 fmt = mtk_jpeg_find_format(ctx, f->fmt.pix_mp.pixelformat,
329 MTK_JPEG_FMT_TYPE_CAPTURE);
330 if (!fmt)
331 fmt = ctx->cap_q.fmt;
332
333 v4l2_dbg(2, debug, &ctx->jpeg->v4l2_dev, "(%d) try_fmt:%c%c%c%c\n",
334 f->type,
335 (fmt->fourcc & 0xff),
336 (fmt->fourcc >> 8 & 0xff),
337 (fmt->fourcc >> 16 & 0xff),
338 (fmt->fourcc >> 24 & 0xff));
339
340 return mtk_jpeg_try_fmt_mplane(f, fmt, ctx, MTK_JPEG_FMT_TYPE_CAPTURE);
341}
342
343static int mtk_jpeg_try_fmt_vid_out_mplane(struct file *file, void *priv,
344 struct v4l2_format *f)
345{
346 struct mtk_jpeg_ctx *ctx = mtk_jpeg_fh_to_ctx(priv);
347 struct mtk_jpeg_fmt *fmt;
348
349 fmt = mtk_jpeg_find_format(ctx, f->fmt.pix_mp.pixelformat,
350 MTK_JPEG_FMT_TYPE_OUTPUT);
351 if (!fmt)
352 fmt = ctx->out_q.fmt;
353
354 v4l2_dbg(2, debug, &ctx->jpeg->v4l2_dev, "(%d) try_fmt:%c%c%c%c\n",
355 f->type,
356 (fmt->fourcc & 0xff),
357 (fmt->fourcc >> 8 & 0xff),
358 (fmt->fourcc >> 16 & 0xff),
359 (fmt->fourcc >> 24 & 0xff));
360
361 return mtk_jpeg_try_fmt_mplane(f, fmt, ctx, MTK_JPEG_FMT_TYPE_OUTPUT);
362}
363
364static int mtk_jpeg_s_fmt_mplane(struct mtk_jpeg_ctx *ctx,
365 struct v4l2_format *f)
366{
367 struct vb2_queue *vq;
368 struct mtk_jpeg_q_data *q_data = NULL;
369 struct v4l2_pix_format_mplane *pix_mp = &f->fmt.pix_mp;
370 struct mtk_jpeg_dev *jpeg = ctx->jpeg;
371 unsigned int f_type;
372 int i;
373
374 vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
375 if (!vq)
376 return -EINVAL;
377
378 q_data = mtk_jpeg_get_q_data(ctx, f->type);
379
380 if (vb2_is_busy(vq)) {
381 v4l2_err(&jpeg->v4l2_dev, "queue busy\n");
382 return -EBUSY;
383 }
384
385 f_type = V4L2_TYPE_IS_OUTPUT(f->type) ?
386 MTK_JPEG_FMT_TYPE_OUTPUT : MTK_JPEG_FMT_TYPE_CAPTURE;
387
388 q_data->fmt = mtk_jpeg_find_format(ctx, pix_mp->pixelformat, f_type);
389 q_data->w = pix_mp->width;
390 q_data->h = pix_mp->height;
391 ctx->colorspace = pix_mp->colorspace;
392 ctx->ycbcr_enc = pix_mp->ycbcr_enc;
393 ctx->xfer_func = pix_mp->xfer_func;
394 ctx->quantization = pix_mp->quantization;
395
396 v4l2_dbg(1, debug, &jpeg->v4l2_dev, "(%d) s_fmt:%c%c%c%c wxh:%ux%u\n",
397 f->type,
398 (q_data->fmt->fourcc & 0xff),
399 (q_data->fmt->fourcc >> 8 & 0xff),
400 (q_data->fmt->fourcc >> 16 & 0xff),
401 (q_data->fmt->fourcc >> 24 & 0xff),
402 q_data->w, q_data->h);
403
404 for (i = 0; i < q_data->fmt->colplanes; i++) {
405 q_data->bytesperline[i] = pix_mp->plane_fmt[i].bytesperline;
406 q_data->sizeimage[i] = pix_mp->plane_fmt[i].sizeimage;
407
408 v4l2_dbg(1, debug, &jpeg->v4l2_dev,
409 "plane[%d] bpl=%u, size=%u\n",
410 i, q_data->bytesperline[i], q_data->sizeimage[i]);
411 }
412
413 return 0;
414}
415
416static int mtk_jpeg_s_fmt_vid_out_mplane(struct file *file, void *priv,
417 struct v4l2_format *f)
418{
419 int ret;
420
421 ret = mtk_jpeg_try_fmt_vid_out_mplane(file, priv, f);
422 if (ret)
423 return ret;
424
425 return mtk_jpeg_s_fmt_mplane(mtk_jpeg_fh_to_ctx(priv), f);
426}
427
428static int mtk_jpeg_s_fmt_vid_cap_mplane(struct file *file, void *priv,
429 struct v4l2_format *f)
430{
431 int ret;
432
433 ret = mtk_jpeg_try_fmt_vid_cap_mplane(file, priv, f);
434 if (ret)
435 return ret;
436
437 return mtk_jpeg_s_fmt_mplane(mtk_jpeg_fh_to_ctx(priv), f);
438}
439
440static void mtk_jpeg_queue_src_chg_event(struct mtk_jpeg_ctx *ctx)
441{
442 static const struct v4l2_event ev_src_ch = {
443 .type = V4L2_EVENT_SOURCE_CHANGE,
444 .u.src_change.changes =
445 V4L2_EVENT_SRC_CH_RESOLUTION,
446 };
447
448 v4l2_event_queue_fh(&ctx->fh, &ev_src_ch);
449}
450
451static int mtk_jpeg_subscribe_event(struct v4l2_fh *fh,
452 const struct v4l2_event_subscription *sub)
453{
454 switch (sub->type) {
455 case V4L2_EVENT_SOURCE_CHANGE:
456 return v4l2_src_change_event_subscribe(fh, sub);
457 default:
458 return -EINVAL;
459 }
460}
461
462static int mtk_jpeg_g_selection(struct file *file, void *priv,
463 struct v4l2_selection *s)
464{
465 struct mtk_jpeg_ctx *ctx = mtk_jpeg_fh_to_ctx(priv);
466
467 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
468 return -EINVAL;
469
470 switch (s->target) {
471 case V4L2_SEL_TGT_COMPOSE:
472 case V4L2_SEL_TGT_COMPOSE_DEFAULT:
473 s->r.width = ctx->out_q.w;
474 s->r.height = ctx->out_q.h;
475 s->r.left = 0;
476 s->r.top = 0;
477 break;
478 case V4L2_SEL_TGT_COMPOSE_BOUNDS:
479 case V4L2_SEL_TGT_COMPOSE_PADDED:
480 s->r.width = ctx->cap_q.w;
481 s->r.height = ctx->cap_q.h;
482 s->r.left = 0;
483 s->r.top = 0;
484 break;
485 default:
486 return -EINVAL;
487 }
488 return 0;
489}
490
491static int mtk_jpeg_s_selection(struct file *file, void *priv,
492 struct v4l2_selection *s)
493{
494 struct mtk_jpeg_ctx *ctx = mtk_jpeg_fh_to_ctx(priv);
495
496 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
497 return -EINVAL;
498
499 switch (s->target) {
500 case V4L2_SEL_TGT_COMPOSE:
501 s->r.left = 0;
502 s->r.top = 0;
503 s->r.width = ctx->out_q.w;
504 s->r.height = ctx->out_q.h;
505 break;
506 default:
507 return -EINVAL;
508 }
509 return 0;
510}
511
512static int mtk_jpeg_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
513{
514 struct v4l2_fh *fh = file->private_data;
515 struct mtk_jpeg_ctx *ctx = mtk_jpeg_fh_to_ctx(priv);
516 struct vb2_queue *vq;
517 struct vb2_buffer *vb;
518 struct mtk_jpeg_src_buf *jpeg_src_buf;
519
520 if (buf->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
521 goto end;
522
523 vq = v4l2_m2m_get_vq(fh->m2m_ctx, buf->type);
524 if (buf->index >= vq->num_buffers) {
525 dev_err(ctx->jpeg->dev, "buffer index out of range\n");
526 return -EINVAL;
527 }
528
529 vb = vq->bufs[buf->index];
530 jpeg_src_buf = mtk_jpeg_vb2_to_srcbuf(vb);
531 jpeg_src_buf->flags = (buf->m.planes[0].bytesused == 0) ?
532 MTK_JPEG_BUF_FLAGS_LAST_FRAME : MTK_JPEG_BUF_FLAGS_INIT;
533end:
534 return v4l2_m2m_qbuf(file, fh->m2m_ctx, buf);
535}
536
537static const struct v4l2_ioctl_ops mtk_jpeg_ioctl_ops = {
538 .vidioc_querycap = mtk_jpeg_querycap,
539 .vidioc_enum_fmt_vid_cap_mplane = mtk_jpeg_enum_fmt_vid_cap,
540 .vidioc_enum_fmt_vid_out_mplane = mtk_jpeg_enum_fmt_vid_out,
541 .vidioc_try_fmt_vid_cap_mplane = mtk_jpeg_try_fmt_vid_cap_mplane,
542 .vidioc_try_fmt_vid_out_mplane = mtk_jpeg_try_fmt_vid_out_mplane,
543 .vidioc_g_fmt_vid_cap_mplane = mtk_jpeg_g_fmt_vid_mplane,
544 .vidioc_g_fmt_vid_out_mplane = mtk_jpeg_g_fmt_vid_mplane,
545 .vidioc_s_fmt_vid_cap_mplane = mtk_jpeg_s_fmt_vid_cap_mplane,
546 .vidioc_s_fmt_vid_out_mplane = mtk_jpeg_s_fmt_vid_out_mplane,
547 .vidioc_qbuf = mtk_jpeg_qbuf,
548 .vidioc_subscribe_event = mtk_jpeg_subscribe_event,
549 .vidioc_g_selection = mtk_jpeg_g_selection,
550 .vidioc_s_selection = mtk_jpeg_s_selection,
551
552 .vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs,
553 .vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf,
554 .vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs,
555 .vidioc_querybuf = v4l2_m2m_ioctl_querybuf,
556 .vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf,
557 .vidioc_expbuf = v4l2_m2m_ioctl_expbuf,
558 .vidioc_streamon = v4l2_m2m_ioctl_streamon,
559 .vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
560
561 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
562};
563
564static int mtk_jpeg_queue_setup(struct vb2_queue *q,
565 unsigned int *num_buffers,
566 unsigned int *num_planes,
567 unsigned int sizes[],
568 struct device *alloc_ctxs[])
569{
570 struct mtk_jpeg_ctx *ctx = vb2_get_drv_priv(q);
571 struct mtk_jpeg_q_data *q_data = NULL;
572 struct mtk_jpeg_dev *jpeg = ctx->jpeg;
573 int i;
574
575 v4l2_dbg(1, debug, &jpeg->v4l2_dev, "(%d) buf_req count=%u\n",
576 q->type, *num_buffers);
577
578 q_data = mtk_jpeg_get_q_data(ctx, q->type);
579 if (!q_data)
580 return -EINVAL;
581
582 *num_planes = q_data->fmt->colplanes;
583 for (i = 0; i < q_data->fmt->colplanes; i++) {
584 sizes[i] = q_data->sizeimage[i];
585 v4l2_dbg(1, debug, &jpeg->v4l2_dev, "sizeimage[%d]=%u\n",
586 i, sizes[i]);
587 }
588
589 return 0;
590}
591
592static int mtk_jpeg_buf_prepare(struct vb2_buffer *vb)
593{
594 struct mtk_jpeg_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
595 struct mtk_jpeg_q_data *q_data = NULL;
596 int i;
597
598 q_data = mtk_jpeg_get_q_data(ctx, vb->vb2_queue->type);
599 if (!q_data)
600 return -EINVAL;
601
602 for (i = 0; i < q_data->fmt->colplanes; i++)
603 vb2_set_plane_payload(vb, i, q_data->sizeimage[i]);
604
605 return 0;
606}
607
608static bool mtk_jpeg_check_resolution_change(struct mtk_jpeg_ctx *ctx,
609 struct mtk_jpeg_dec_param *param)
610{
611 struct mtk_jpeg_dev *jpeg = ctx->jpeg;
612 struct mtk_jpeg_q_data *q_data;
613
614 q_data = &ctx->out_q;
615 if (q_data->w != param->pic_w || q_data->h != param->pic_h) {
616 v4l2_dbg(1, debug, &jpeg->v4l2_dev, "Picture size change\n");
617 return true;
618 }
619
620 q_data = &ctx->cap_q;
621 if (q_data->fmt != mtk_jpeg_find_format(ctx, param->dst_fourcc,
622 MTK_JPEG_FMT_TYPE_CAPTURE)) {
623 v4l2_dbg(1, debug, &jpeg->v4l2_dev, "format change\n");
624 return true;
625 }
626 return false;
627}
628
629static void mtk_jpeg_set_queue_data(struct mtk_jpeg_ctx *ctx,
630 struct mtk_jpeg_dec_param *param)
631{
632 struct mtk_jpeg_dev *jpeg = ctx->jpeg;
633 struct mtk_jpeg_q_data *q_data;
634 int i;
635
636 q_data = &ctx->out_q;
637 q_data->w = param->pic_w;
638 q_data->h = param->pic_h;
639
640 q_data = &ctx->cap_q;
641 q_data->w = param->dec_w;
642 q_data->h = param->dec_h;
643 q_data->fmt = mtk_jpeg_find_format(ctx,
644 param->dst_fourcc,
645 MTK_JPEG_FMT_TYPE_CAPTURE);
646
647 for (i = 0; i < q_data->fmt->colplanes; i++) {
648 q_data->bytesperline[i] = param->mem_stride[i];
649 q_data->sizeimage[i] = param->comp_size[i];
650 }
651
652 v4l2_dbg(1, debug, &jpeg->v4l2_dev,
653 "set_parse cap:%c%c%c%c pic(%u, %u), buf(%u, %u)\n",
654 (param->dst_fourcc & 0xff),
655 (param->dst_fourcc >> 8 & 0xff),
656 (param->dst_fourcc >> 16 & 0xff),
657 (param->dst_fourcc >> 24 & 0xff),
658 param->pic_w, param->pic_h,
659 param->dec_w, param->dec_h);
660}
661
662static void mtk_jpeg_buf_queue(struct vb2_buffer *vb)
663{
664 struct mtk_jpeg_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
665 struct mtk_jpeg_dec_param *param;
666 struct mtk_jpeg_dev *jpeg = ctx->jpeg;
667 struct mtk_jpeg_src_buf *jpeg_src_buf;
668 bool header_valid;
669
670 v4l2_dbg(2, debug, &jpeg->v4l2_dev, "(%d) buf_q id=%d, vb=%p\n",
671 vb->vb2_queue->type, vb->index, vb);
672
673 if (vb->vb2_queue->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
674 goto end;
675
676 jpeg_src_buf = mtk_jpeg_vb2_to_srcbuf(vb);
677 param = &jpeg_src_buf->dec_param;
678 memset(param, 0, sizeof(*param));
679
680 if (jpeg_src_buf->flags & MTK_JPEG_BUF_FLAGS_LAST_FRAME) {
681 v4l2_dbg(1, debug, &jpeg->v4l2_dev, "Got eos\n");
682 goto end;
683 }
684 header_valid = mtk_jpeg_parse(param, (u8 *)vb2_plane_vaddr(vb, 0),
685 vb2_get_plane_payload(vb, 0));
686 if (!header_valid) {
687 v4l2_err(&jpeg->v4l2_dev, "Header invalid.\n");
688 vb2_buffer_done(vb, VB2_BUF_STATE_ERROR);
689 return;
690 }
691
692 if (ctx->state == MTK_JPEG_INIT) {
693 struct vb2_queue *dst_vq = v4l2_m2m_get_vq(
694 ctx->fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
695
696 mtk_jpeg_queue_src_chg_event(ctx);
697 mtk_jpeg_set_queue_data(ctx, param);
698 ctx->state = vb2_is_streaming(dst_vq) ?
699 MTK_JPEG_SOURCE_CHANGE : MTK_JPEG_RUNNING;
700 }
701end:
702 v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, to_vb2_v4l2_buffer(vb));
703}
704
705static void *mtk_jpeg_buf_remove(struct mtk_jpeg_ctx *ctx,
706 enum v4l2_buf_type type)
707{
708 if (V4L2_TYPE_IS_OUTPUT(type))
709 return v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
710 else
711 return v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
712}
713
714static int mtk_jpeg_start_streaming(struct vb2_queue *q, unsigned int count)
715{
716 struct mtk_jpeg_ctx *ctx = vb2_get_drv_priv(q);
717 struct vb2_buffer *vb;
718 int ret = 0;
719
720 ret = pm_runtime_get_sync(ctx->jpeg->dev);
721 if (ret < 0)
722 goto err;
723
724 return 0;
725err:
726 while ((vb = mtk_jpeg_buf_remove(ctx, q->type)))
727 v4l2_m2m_buf_done(to_vb2_v4l2_buffer(vb), VB2_BUF_STATE_QUEUED);
728 return ret;
729}
730
731static void mtk_jpeg_stop_streaming(struct vb2_queue *q)
732{
733 struct mtk_jpeg_ctx *ctx = vb2_get_drv_priv(q);
734 struct vb2_buffer *vb;
735
736
737
738
739
740
741 if (ctx->state == MTK_JPEG_SOURCE_CHANGE &&
742 !V4L2_TYPE_IS_OUTPUT(q->type)) {
743 struct mtk_jpeg_src_buf *src_buf;
744
745 vb = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
746 src_buf = mtk_jpeg_vb2_to_srcbuf(vb);
747 mtk_jpeg_set_queue_data(ctx, &src_buf->dec_param);
748 ctx->state = MTK_JPEG_RUNNING;
749 } else if (V4L2_TYPE_IS_OUTPUT(q->type)) {
750 ctx->state = MTK_JPEG_INIT;
751 }
752
753 while ((vb = mtk_jpeg_buf_remove(ctx, q->type)))
754 v4l2_m2m_buf_done(to_vb2_v4l2_buffer(vb), VB2_BUF_STATE_ERROR);
755
756 pm_runtime_put_sync(ctx->jpeg->dev);
757}
758
759static const struct vb2_ops mtk_jpeg_qops = {
760 .queue_setup = mtk_jpeg_queue_setup,
761 .buf_prepare = mtk_jpeg_buf_prepare,
762 .buf_queue = mtk_jpeg_buf_queue,
763 .wait_prepare = vb2_ops_wait_prepare,
764 .wait_finish = vb2_ops_wait_finish,
765 .start_streaming = mtk_jpeg_start_streaming,
766 .stop_streaming = mtk_jpeg_stop_streaming,
767};
768
769static void mtk_jpeg_set_dec_src(struct mtk_jpeg_ctx *ctx,
770 struct vb2_buffer *src_buf,
771 struct mtk_jpeg_bs *bs)
772{
773 bs->str_addr = vb2_dma_contig_plane_dma_addr(src_buf, 0);
774 bs->end_addr = bs->str_addr +
775 mtk_jpeg_align(vb2_get_plane_payload(src_buf, 0), 16);
776 bs->size = mtk_jpeg_align(vb2_plane_size(src_buf, 0), 128);
777}
778
779static int mtk_jpeg_set_dec_dst(struct mtk_jpeg_ctx *ctx,
780 struct mtk_jpeg_dec_param *param,
781 struct vb2_buffer *dst_buf,
782 struct mtk_jpeg_fb *fb)
783{
784 int i;
785
786 if (param->comp_num != dst_buf->num_planes) {
787 dev_err(ctx->jpeg->dev, "plane number mismatch (%u != %u)\n",
788 param->comp_num, dst_buf->num_planes);
789 return -EINVAL;
790 }
791
792 for (i = 0; i < dst_buf->num_planes; i++) {
793 if (vb2_plane_size(dst_buf, i) < param->comp_size[i]) {
794 dev_err(ctx->jpeg->dev,
795 "buffer size is underflow (%lu < %u)\n",
796 vb2_plane_size(dst_buf, 0),
797 param->comp_size[i]);
798 return -EINVAL;
799 }
800 fb->plane_addr[i] = vb2_dma_contig_plane_dma_addr(dst_buf, i);
801 }
802
803 return 0;
804}
805
806static void mtk_jpeg_device_run(void *priv)
807{
808 struct mtk_jpeg_ctx *ctx = priv;
809 struct mtk_jpeg_dev *jpeg = ctx->jpeg;
810 struct vb2_buffer *src_buf, *dst_buf;
811 enum vb2_buffer_state buf_state = VB2_BUF_STATE_ERROR;
812 unsigned long flags;
813 struct mtk_jpeg_src_buf *jpeg_src_buf;
814 struct mtk_jpeg_bs bs;
815 struct mtk_jpeg_fb fb;
816 int i;
817
818 src_buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
819 dst_buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
820 jpeg_src_buf = mtk_jpeg_vb2_to_srcbuf(src_buf);
821
822 if (jpeg_src_buf->flags & MTK_JPEG_BUF_FLAGS_LAST_FRAME) {
823 for (i = 0; i < dst_buf->num_planes; i++)
824 vb2_set_plane_payload(dst_buf, i, 0);
825 buf_state = VB2_BUF_STATE_DONE;
826 goto dec_end;
827 }
828
829 if (mtk_jpeg_check_resolution_change(ctx, &jpeg_src_buf->dec_param)) {
830 mtk_jpeg_queue_src_chg_event(ctx);
831 ctx->state = MTK_JPEG_SOURCE_CHANGE;
832 v4l2_m2m_job_finish(jpeg->m2m_dev, ctx->fh.m2m_ctx);
833 return;
834 }
835
836 mtk_jpeg_set_dec_src(ctx, src_buf, &bs);
837 if (mtk_jpeg_set_dec_dst(ctx, &jpeg_src_buf->dec_param, dst_buf, &fb))
838 goto dec_end;
839
840 spin_lock_irqsave(&jpeg->hw_lock, flags);
841 mtk_jpeg_dec_reset(jpeg->dec_reg_base);
842 mtk_jpeg_dec_set_config(jpeg->dec_reg_base,
843 &jpeg_src_buf->dec_param, &bs, &fb);
844
845 mtk_jpeg_dec_start(jpeg->dec_reg_base);
846 spin_unlock_irqrestore(&jpeg->hw_lock, flags);
847 return;
848
849dec_end:
850 v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
851 v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
852 v4l2_m2m_buf_done(to_vb2_v4l2_buffer(src_buf), buf_state);
853 v4l2_m2m_buf_done(to_vb2_v4l2_buffer(dst_buf), buf_state);
854 v4l2_m2m_job_finish(jpeg->m2m_dev, ctx->fh.m2m_ctx);
855}
856
857static int mtk_jpeg_job_ready(void *priv)
858{
859 struct mtk_jpeg_ctx *ctx = priv;
860
861 return (ctx->state == MTK_JPEG_RUNNING) ? 1 : 0;
862}
863
864static void mtk_jpeg_job_abort(void *priv)
865{
866}
867
868static const struct v4l2_m2m_ops mtk_jpeg_m2m_ops = {
869 .device_run = mtk_jpeg_device_run,
870 .job_ready = mtk_jpeg_job_ready,
871 .job_abort = mtk_jpeg_job_abort,
872};
873
874static int mtk_jpeg_queue_init(void *priv, struct vb2_queue *src_vq,
875 struct vb2_queue *dst_vq)
876{
877 struct mtk_jpeg_ctx *ctx = priv;
878 int ret;
879
880 src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
881 src_vq->io_modes = VB2_DMABUF | VB2_MMAP;
882 src_vq->drv_priv = ctx;
883 src_vq->buf_struct_size = sizeof(struct mtk_jpeg_src_buf);
884 src_vq->ops = &mtk_jpeg_qops;
885 src_vq->mem_ops = &vb2_dma_contig_memops;
886 src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
887 src_vq->lock = &ctx->jpeg->lock;
888 src_vq->dev = ctx->jpeg->dev;
889 ret = vb2_queue_init(src_vq);
890 if (ret)
891 return ret;
892
893 dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
894 dst_vq->io_modes = VB2_DMABUF | VB2_MMAP;
895 dst_vq->drv_priv = ctx;
896 dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
897 dst_vq->ops = &mtk_jpeg_qops;
898 dst_vq->mem_ops = &vb2_dma_contig_memops;
899 dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
900 dst_vq->lock = &ctx->jpeg->lock;
901 dst_vq->dev = ctx->jpeg->dev;
902 ret = vb2_queue_init(dst_vq);
903
904 return ret;
905}
906
907static void mtk_jpeg_clk_on(struct mtk_jpeg_dev *jpeg)
908{
909 int ret;
910
911 ret = mtk_smi_larb_get(jpeg->larb);
912 if (ret)
913 dev_err(jpeg->dev, "mtk_smi_larb_get larbvdec fail %d\n", ret);
914 clk_prepare_enable(jpeg->clk_jdec_smi);
915 clk_prepare_enable(jpeg->clk_jdec);
916}
917
918static void mtk_jpeg_clk_off(struct mtk_jpeg_dev *jpeg)
919{
920 clk_disable_unprepare(jpeg->clk_jdec);
921 clk_disable_unprepare(jpeg->clk_jdec_smi);
922 mtk_smi_larb_put(jpeg->larb);
923}
924
925static irqreturn_t mtk_jpeg_dec_irq(int irq, void *priv)
926{
927 struct mtk_jpeg_dev *jpeg = priv;
928 struct mtk_jpeg_ctx *ctx;
929 struct vb2_buffer *src_buf, *dst_buf;
930 struct mtk_jpeg_src_buf *jpeg_src_buf;
931 enum vb2_buffer_state buf_state = VB2_BUF_STATE_ERROR;
932 u32 dec_irq_ret;
933 u32 dec_ret;
934 int i;
935
936 dec_ret = mtk_jpeg_dec_get_int_status(jpeg->dec_reg_base);
937 dec_irq_ret = mtk_jpeg_dec_enum_result(dec_ret);
938 ctx = v4l2_m2m_get_curr_priv(jpeg->m2m_dev);
939 if (!ctx) {
940 v4l2_err(&jpeg->v4l2_dev, "Context is NULL\n");
941 return IRQ_HANDLED;
942 }
943
944 src_buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
945 dst_buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
946 jpeg_src_buf = mtk_jpeg_vb2_to_srcbuf(src_buf);
947
948 if (dec_irq_ret >= MTK_JPEG_DEC_RESULT_UNDERFLOW)
949 mtk_jpeg_dec_reset(jpeg->dec_reg_base);
950
951 if (dec_irq_ret != MTK_JPEG_DEC_RESULT_EOF_DONE) {
952 dev_err(jpeg->dev, "decode failed\n");
953 goto dec_end;
954 }
955
956 for (i = 0; i < dst_buf->num_planes; i++)
957 vb2_set_plane_payload(dst_buf, i,
958 jpeg_src_buf->dec_param.comp_size[i]);
959
960 buf_state = VB2_BUF_STATE_DONE;
961
962dec_end:
963 v4l2_m2m_buf_done(to_vb2_v4l2_buffer(src_buf), buf_state);
964 v4l2_m2m_buf_done(to_vb2_v4l2_buffer(dst_buf), buf_state);
965 v4l2_m2m_job_finish(jpeg->m2m_dev, ctx->fh.m2m_ctx);
966 return IRQ_HANDLED;
967}
968
969static void mtk_jpeg_set_default_params(struct mtk_jpeg_ctx *ctx)
970{
971 struct mtk_jpeg_q_data *q = &ctx->out_q;
972 int i;
973
974 ctx->colorspace = V4L2_COLORSPACE_JPEG,
975 ctx->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT;
976 ctx->quantization = V4L2_QUANTIZATION_DEFAULT;
977 ctx->xfer_func = V4L2_XFER_FUNC_DEFAULT;
978
979 q->fmt = mtk_jpeg_find_format(ctx, V4L2_PIX_FMT_JPEG,
980 MTK_JPEG_FMT_TYPE_OUTPUT);
981 q->w = MTK_JPEG_MIN_WIDTH;
982 q->h = MTK_JPEG_MIN_HEIGHT;
983 q->bytesperline[0] = 0;
984 q->sizeimage[0] = MTK_JPEG_DEFAULT_SIZEIMAGE;
985
986 q = &ctx->cap_q;
987 q->fmt = mtk_jpeg_find_format(ctx, V4L2_PIX_FMT_YUV420M,
988 MTK_JPEG_FMT_TYPE_CAPTURE);
989 q->w = MTK_JPEG_MIN_WIDTH;
990 q->h = MTK_JPEG_MIN_HEIGHT;
991
992 for (i = 0; i < q->fmt->colplanes; i++) {
993 u32 stride = q->w * q->fmt->h_sample[i] / 4;
994 u32 h = q->h * q->fmt->v_sample[i] / 4;
995
996 q->bytesperline[i] = stride;
997 q->sizeimage[i] = stride * h;
998 }
999}
1000
1001static int mtk_jpeg_open(struct file *file)
1002{
1003 struct mtk_jpeg_dev *jpeg = video_drvdata(file);
1004 struct video_device *vfd = video_devdata(file);
1005 struct mtk_jpeg_ctx *ctx;
1006 int ret = 0;
1007
1008 ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
1009 if (!ctx)
1010 return -ENOMEM;
1011
1012 if (mutex_lock_interruptible(&jpeg->lock)) {
1013 ret = -ERESTARTSYS;
1014 goto free;
1015 }
1016
1017 v4l2_fh_init(&ctx->fh, vfd);
1018 file->private_data = &ctx->fh;
1019 v4l2_fh_add(&ctx->fh);
1020
1021 ctx->jpeg = jpeg;
1022 ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(jpeg->m2m_dev, ctx,
1023 mtk_jpeg_queue_init);
1024 if (IS_ERR(ctx->fh.m2m_ctx)) {
1025 ret = PTR_ERR(ctx->fh.m2m_ctx);
1026 goto error;
1027 }
1028
1029 mtk_jpeg_set_default_params(ctx);
1030 mutex_unlock(&jpeg->lock);
1031 return 0;
1032
1033error:
1034 v4l2_fh_del(&ctx->fh);
1035 v4l2_fh_exit(&ctx->fh);
1036 mutex_unlock(&jpeg->lock);
1037free:
1038 kfree(ctx);
1039 return ret;
1040}
1041
1042static int mtk_jpeg_release(struct file *file)
1043{
1044 struct mtk_jpeg_dev *jpeg = video_drvdata(file);
1045 struct mtk_jpeg_ctx *ctx = mtk_jpeg_fh_to_ctx(file->private_data);
1046
1047 mutex_lock(&jpeg->lock);
1048 v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
1049 v4l2_fh_del(&ctx->fh);
1050 v4l2_fh_exit(&ctx->fh);
1051 kfree(ctx);
1052 mutex_unlock(&jpeg->lock);
1053 return 0;
1054}
1055
1056static const struct v4l2_file_operations mtk_jpeg_fops = {
1057 .owner = THIS_MODULE,
1058 .open = mtk_jpeg_open,
1059 .release = mtk_jpeg_release,
1060 .poll = v4l2_m2m_fop_poll,
1061 .unlocked_ioctl = video_ioctl2,
1062 .mmap = v4l2_m2m_fop_mmap,
1063};
1064
1065static int mtk_jpeg_clk_init(struct mtk_jpeg_dev *jpeg)
1066{
1067 struct device_node *node;
1068 struct platform_device *pdev;
1069
1070 node = of_parse_phandle(jpeg->dev->of_node, "mediatek,larb", 0);
1071 if (!node)
1072 return -EINVAL;
1073 pdev = of_find_device_by_node(node);
1074 if (WARN_ON(!pdev)) {
1075 of_node_put(node);
1076 return -EINVAL;
1077 }
1078 of_node_put(node);
1079
1080 jpeg->larb = &pdev->dev;
1081
1082 jpeg->clk_jdec = devm_clk_get(jpeg->dev, "jpgdec");
1083 if (IS_ERR(jpeg->clk_jdec))
1084 return PTR_ERR(jpeg->clk_jdec);
1085
1086 jpeg->clk_jdec_smi = devm_clk_get(jpeg->dev, "jpgdec-smi");
1087 return PTR_ERR_OR_ZERO(jpeg->clk_jdec_smi);
1088}
1089
1090static int mtk_jpeg_probe(struct platform_device *pdev)
1091{
1092 struct mtk_jpeg_dev *jpeg;
1093 struct resource *res;
1094 int dec_irq;
1095 int ret;
1096
1097 jpeg = devm_kzalloc(&pdev->dev, sizeof(*jpeg), GFP_KERNEL);
1098 if (!jpeg)
1099 return -ENOMEM;
1100
1101 mutex_init(&jpeg->lock);
1102 spin_lock_init(&jpeg->hw_lock);
1103 jpeg->dev = &pdev->dev;
1104
1105 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
1106 jpeg->dec_reg_base = devm_ioremap_resource(&pdev->dev, res);
1107 if (IS_ERR(jpeg->dec_reg_base)) {
1108 ret = PTR_ERR(jpeg->dec_reg_base);
1109 return ret;
1110 }
1111
1112 res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
1113 dec_irq = platform_get_irq(pdev, 0);
1114 if (!res || dec_irq < 0) {
1115 dev_err(&pdev->dev, "Failed to get dec_irq %d.\n", dec_irq);
1116 ret = -EINVAL;
1117 return ret;
1118 }
1119
1120 ret = devm_request_irq(&pdev->dev, dec_irq, mtk_jpeg_dec_irq, 0,
1121 pdev->name, jpeg);
1122 if (ret) {
1123 dev_err(&pdev->dev, "Failed to request dec_irq %d (%d)\n",
1124 dec_irq, ret);
1125 ret = -EINVAL;
1126 goto err_req_irq;
1127 }
1128
1129 ret = mtk_jpeg_clk_init(jpeg);
1130 if (ret) {
1131 dev_err(&pdev->dev, "Failed to init clk, err %d\n", ret);
1132 goto err_clk_init;
1133 }
1134
1135 ret = v4l2_device_register(&pdev->dev, &jpeg->v4l2_dev);
1136 if (ret) {
1137 dev_err(&pdev->dev, "Failed to register v4l2 device\n");
1138 ret = -EINVAL;
1139 goto err_dev_register;
1140 }
1141
1142 jpeg->m2m_dev = v4l2_m2m_init(&mtk_jpeg_m2m_ops);
1143 if (IS_ERR(jpeg->m2m_dev)) {
1144 v4l2_err(&jpeg->v4l2_dev, "Failed to init mem2mem device\n");
1145 ret = PTR_ERR(jpeg->m2m_dev);
1146 goto err_m2m_init;
1147 }
1148
1149 jpeg->dec_vdev = video_device_alloc();
1150 if (!jpeg->dec_vdev) {
1151 ret = -ENOMEM;
1152 goto err_dec_vdev_alloc;
1153 }
1154 snprintf(jpeg->dec_vdev->name, sizeof(jpeg->dec_vdev->name),
1155 "%s-dec", MTK_JPEG_NAME);
1156 jpeg->dec_vdev->fops = &mtk_jpeg_fops;
1157 jpeg->dec_vdev->ioctl_ops = &mtk_jpeg_ioctl_ops;
1158 jpeg->dec_vdev->minor = -1;
1159 jpeg->dec_vdev->release = video_device_release;
1160 jpeg->dec_vdev->lock = &jpeg->lock;
1161 jpeg->dec_vdev->v4l2_dev = &jpeg->v4l2_dev;
1162 jpeg->dec_vdev->vfl_dir = VFL_DIR_M2M;
1163 jpeg->dec_vdev->device_caps = V4L2_CAP_STREAMING |
1164 V4L2_CAP_VIDEO_M2M_MPLANE;
1165
1166 ret = video_register_device(jpeg->dec_vdev, VFL_TYPE_GRABBER, 3);
1167 if (ret) {
1168 v4l2_err(&jpeg->v4l2_dev, "Failed to register video device\n");
1169 goto err_dec_vdev_register;
1170 }
1171
1172 video_set_drvdata(jpeg->dec_vdev, jpeg);
1173 v4l2_info(&jpeg->v4l2_dev,
1174 "decoder device registered as /dev/video%d (%d,%d)\n",
1175 jpeg->dec_vdev->num, VIDEO_MAJOR, jpeg->dec_vdev->minor);
1176
1177 platform_set_drvdata(pdev, jpeg);
1178
1179 pm_runtime_enable(&pdev->dev);
1180
1181 return 0;
1182
1183err_dec_vdev_register:
1184 video_device_release(jpeg->dec_vdev);
1185
1186err_dec_vdev_alloc:
1187 v4l2_m2m_release(jpeg->m2m_dev);
1188
1189err_m2m_init:
1190 v4l2_device_unregister(&jpeg->v4l2_dev);
1191
1192err_dev_register:
1193
1194err_clk_init:
1195
1196err_req_irq:
1197
1198 return ret;
1199}
1200
1201static int mtk_jpeg_remove(struct platform_device *pdev)
1202{
1203 struct mtk_jpeg_dev *jpeg = platform_get_drvdata(pdev);
1204
1205 pm_runtime_disable(&pdev->dev);
1206 video_unregister_device(jpeg->dec_vdev);
1207 video_device_release(jpeg->dec_vdev);
1208 v4l2_m2m_release(jpeg->m2m_dev);
1209 v4l2_device_unregister(&jpeg->v4l2_dev);
1210
1211 return 0;
1212}
1213
1214static __maybe_unused int mtk_jpeg_pm_suspend(struct device *dev)
1215{
1216 struct mtk_jpeg_dev *jpeg = dev_get_drvdata(dev);
1217
1218 mtk_jpeg_dec_reset(jpeg->dec_reg_base);
1219 mtk_jpeg_clk_off(jpeg);
1220
1221 return 0;
1222}
1223
1224static __maybe_unused int mtk_jpeg_pm_resume(struct device *dev)
1225{
1226 struct mtk_jpeg_dev *jpeg = dev_get_drvdata(dev);
1227
1228 mtk_jpeg_clk_on(jpeg);
1229 mtk_jpeg_dec_reset(jpeg->dec_reg_base);
1230
1231 return 0;
1232}
1233
1234static __maybe_unused int mtk_jpeg_suspend(struct device *dev)
1235{
1236 int ret;
1237
1238 if (pm_runtime_suspended(dev))
1239 return 0;
1240
1241 ret = mtk_jpeg_pm_suspend(dev);
1242 return ret;
1243}
1244
1245static __maybe_unused int mtk_jpeg_resume(struct device *dev)
1246{
1247 int ret;
1248
1249 if (pm_runtime_suspended(dev))
1250 return 0;
1251
1252 ret = mtk_jpeg_pm_resume(dev);
1253
1254 return ret;
1255}
1256
1257static const struct dev_pm_ops mtk_jpeg_pm_ops = {
1258 SET_SYSTEM_SLEEP_PM_OPS(mtk_jpeg_suspend, mtk_jpeg_resume)
1259 SET_RUNTIME_PM_OPS(mtk_jpeg_pm_suspend, mtk_jpeg_pm_resume, NULL)
1260};
1261
1262static const struct of_device_id mtk_jpeg_match[] = {
1263 {
1264 .compatible = "mediatek,mt8173-jpgdec",
1265 .data = NULL,
1266 },
1267 {
1268 .compatible = "mediatek,mt2701-jpgdec",
1269 .data = NULL,
1270 },
1271 {},
1272};
1273
1274MODULE_DEVICE_TABLE(of, mtk_jpeg_match);
1275
1276static struct platform_driver mtk_jpeg_driver = {
1277 .probe = mtk_jpeg_probe,
1278 .remove = mtk_jpeg_remove,
1279 .driver = {
1280 .name = MTK_JPEG_NAME,
1281 .of_match_table = mtk_jpeg_match,
1282 .pm = &mtk_jpeg_pm_ops,
1283 },
1284};
1285
1286module_platform_driver(mtk_jpeg_driver);
1287
1288MODULE_DESCRIPTION("MediaTek JPEG codec driver");
1289MODULE_LICENSE("GPL v2");
1290
