1
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6
7#include <linux/clk.h>
8#include <linux/delay.h>
9#include <linux/bitfield.h>
10#include <linux/interrupt.h>
11#include <linux/module.h>
12#include <linux/of.h>
13#include <linux/reset.h>
14#include <linux/sched.h>
15#include <linux/slab.h>
16#include <linux/timer.h>
17#include <linux/regmap.h>
18
19#include <linux/platform_device.h>
20#include <media/v4l2-device.h>
21#include <media/v4l2-event.h>
22#include <media/v4l2-ioctl.h>
23#include <media/v4l2-mem2mem.h>
24#include <media/v4l2-ctrls.h>
25#include <media/videobuf2-v4l2.h>
26#include <media/videobuf2-dma-contig.h>
27
28#include "ge2d-regs.h"
29
30#define GE2D_NAME "meson-ge2d"
31
32#define DEFAULT_WIDTH 128
33#define DEFAULT_HEIGHT 128
34#define DEFAULT_STRIDE 512
35
36#define MAX_WIDTH 8191
37#define MAX_HEIGHT 8191
38
39
40
41
42
43
44
45
46
47
48struct ge2d_fmt {
49 u32 fourcc;
50 bool alpha;
51 bool le;
52 unsigned int depth;
53 unsigned int hw_fmt;
54 unsigned int hw_map;
55};
56
57struct ge2d_frame {
58 struct vb2_v4l2_buffer *buf;
59
60
61 struct v4l2_pix_format pix_fmt;
62
63
64 struct v4l2_rect crop;
65
66
67 const struct ge2d_fmt *fmt;
68};
69
70struct ge2d_ctx {
71 struct v4l2_fh fh;
72 struct meson_ge2d *ge2d;
73 struct ge2d_frame in;
74 struct ge2d_frame out;
75 struct v4l2_ctrl_handler ctrl_handler;
76
77 unsigned long sequence_out, sequence_cap;
78
79
80 u32 hflip;
81 u32 vflip;
82 u32 xy_swap;
83};
84
85struct meson_ge2d {
86 struct v4l2_device v4l2_dev;
87 struct v4l2_m2m_dev *m2m_dev;
88 struct video_device *vfd;
89
90 struct device *dev;
91 struct regmap *map;
92 struct clk *clk;
93
94
95 struct mutex mutex;
96
97 struct ge2d_ctx *curr;
98};
99
100#define FMT(_fourcc, _alpha, _depth, _map) \
101{ \
102 .fourcc = _fourcc, \
103 .alpha = (_alpha), \
104 .depth = (_depth), \
105 .hw_fmt = GE2D_FORMAT_ ## _depth ## BIT, \
106 .hw_map = GE2D_COLOR_MAP_ ## _map, \
107}
108
109
110static const struct ge2d_fmt formats[] = {
111
112 FMT(V4L2_PIX_FMT_XRGB32, false, 32, BGRA8888),
113 FMT(V4L2_PIX_FMT_RGB32, true, 32, BGRA8888),
114 FMT(V4L2_PIX_FMT_ARGB32, true, 32, BGRA8888),
115 FMT(V4L2_PIX_FMT_RGBX32, false, 32, ABGR8888),
116 FMT(V4L2_PIX_FMT_RGBA32, true, 32, ABGR8888),
117 FMT(V4L2_PIX_FMT_BGRX32, false, 32, RGBA8888),
118 FMT(V4L2_PIX_FMT_BGRA32, true, 32, RGBA8888),
119 FMT(V4L2_PIX_FMT_BGR32, true, 32, ARGB8888),
120 FMT(V4L2_PIX_FMT_ABGR32, true, 32, ARGB8888),
121 FMT(V4L2_PIX_FMT_XBGR32, false, 32, ARGB8888),
122
123 FMT(V4L2_PIX_FMT_RGB24, false, 24, BGR888),
124 FMT(V4L2_PIX_FMT_BGR24, false, 24, RGB888),
125
126 FMT(V4L2_PIX_FMT_XRGB555X, false, 16, ARGB1555),
127 FMT(V4L2_PIX_FMT_ARGB555X, true, 16, ARGB1555),
128 FMT(V4L2_PIX_FMT_RGB565, false, 16, RGB565),
129 FMT(V4L2_PIX_FMT_RGBX444, false, 16, RGBA4444),
130 FMT(V4L2_PIX_FMT_RGBA444, true, 16, RGBA4444),
131 FMT(V4L2_PIX_FMT_XRGB444, false, 16, ARGB4444),
132 FMT(V4L2_PIX_FMT_ARGB444, true, 16, ARGB4444),
133};
134
135#define NUM_FORMATS ARRAY_SIZE(formats)
136
137static const struct ge2d_fmt *find_fmt(struct v4l2_format *f)
138{
139 unsigned int i;
140
141 for (i = 0; i < NUM_FORMATS; i++) {
142 if (formats[i].fourcc == f->fmt.pix.pixelformat)
143 return &formats[i];
144 }
145
146
147
148
149
150
151
152 return &formats[0];
153}
154
155static struct ge2d_frame *get_frame(struct ge2d_ctx *ctx,
156 enum v4l2_buf_type type)
157{
158 switch (type) {
159 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
160 return &ctx->in;
161 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
162 return &ctx->out;
163 default:
164
165 dev_warn(ctx->ge2d->dev, "%s: invalid buffer type\n", __func__);
166 return &ctx->in;
167 }
168}
169
170static void ge2d_hw_start(struct meson_ge2d *ge2d)
171{
172 struct ge2d_ctx *ctx = ge2d->curr;
173 u32 reg;
174
175
176 regmap_update_bits(ge2d->map, GE2D_GEN_CTRL1,
177 GE2D_SOFT_RST, GE2D_SOFT_RST);
178 regmap_update_bits(ge2d->map, GE2D_GEN_CTRL1,
179 GE2D_SOFT_RST, 0);
180
181 usleep_range(100, 200);
182
183
184 regmap_write(ge2d->map, GE2D_SRC1_BADDR_CTRL,
185 (vb2_dma_contig_plane_dma_addr(&ctx->in.buf->vb2_buf, 0) + 7) >> 3);
186 regmap_write(ge2d->map, GE2D_SRC1_STRIDE_CTRL,
187 (ctx->in.pix_fmt.bytesperline + 7) >> 3);
188 regmap_write(ge2d->map, GE2D_SRC2_BADDR_CTRL,
189 (vb2_dma_contig_plane_dma_addr(&ctx->out.buf->vb2_buf, 0) + 7) >> 3);
190 regmap_write(ge2d->map, GE2D_SRC2_STRIDE_CTRL,
191 (ctx->out.pix_fmt.bytesperline + 7) >> 3);
192 regmap_write(ge2d->map, GE2D_DST1_BADDR_CTRL,
193 (vb2_dma_contig_plane_dma_addr(&ctx->out.buf->vb2_buf, 0) + 7) >> 3);
194 regmap_write(ge2d->map, GE2D_DST1_STRIDE_CTRL,
195 (ctx->out.pix_fmt.bytesperline + 7) >> 3);
196
197 regmap_write(ge2d->map, GE2D_GEN_CTRL0, 0);
198 regmap_write(ge2d->map, GE2D_GEN_CTRL1,
199 FIELD_PREP(GE2D_INTERRUPT_CTRL, 2) |
200 FIELD_PREP(GE2D_SRC2_BURST_SIZE_CTRL, 3) |
201 FIELD_PREP(GE2D_SRC1_BURST_SIZE_CTRL, 0x3f));
202
203 regmap_write(ge2d->map, GE2D_GEN_CTRL2,
204 GE2D_SRC1_LITTLE_ENDIAN |
205 GE2D_SRC2_LITTLE_ENDIAN |
206 GE2D_DST_LITTLE_ENDIAN |
207 FIELD_PREP(GE2D_DST1_COLOR_MAP, ctx->out.fmt->hw_map) |
208 FIELD_PREP(GE2D_DST1_FORMAT, ctx->out.fmt->hw_fmt) |
209 FIELD_PREP(GE2D_SRC2_COLOR_MAP, ctx->out.fmt->hw_map) |
210 FIELD_PREP(GE2D_SRC2_FORMAT, ctx->out.fmt->hw_fmt) |
211 FIELD_PREP(GE2D_SRC1_COLOR_MAP, ctx->in.fmt->hw_map) |
212 FIELD_PREP(GE2D_SRC1_FORMAT, ctx->in.fmt->hw_fmt));
213 regmap_write(ge2d->map, GE2D_GEN_CTRL3,
214 GE2D_DST1_ENABLE);
215
216 regmap_write(ge2d->map, GE2D_SRC1_CLIPY_START_END,
217 FIELD_PREP(GE2D_START, ctx->in.crop.top) |
218 FIELD_PREP(GE2D_END, ctx->in.crop.top + ctx->in.crop.height));
219 regmap_write(ge2d->map, GE2D_SRC1_CLIPX_START_END,
220 FIELD_PREP(GE2D_START, ctx->in.crop.left) |
221 FIELD_PREP(GE2D_END, ctx->in.crop.left + ctx->in.crop.width));
222 regmap_write(ge2d->map, GE2D_SRC2_CLIPY_START_END,
223 FIELD_PREP(GE2D_START, ctx->out.crop.top) |
224 FIELD_PREP(GE2D_END, ctx->out.crop.top + ctx->out.crop.height));
225 regmap_write(ge2d->map, GE2D_SRC2_CLIPX_START_END,
226 FIELD_PREP(GE2D_START, ctx->out.crop.left) |
227 FIELD_PREP(GE2D_END, ctx->out.crop.left + ctx->out.crop.width));
228 regmap_write(ge2d->map, GE2D_DST_CLIPY_START_END,
229 FIELD_PREP(GE2D_START, ctx->out.crop.top) |
230 FIELD_PREP(GE2D_END, ctx->out.crop.top + ctx->out.crop.height));
231 regmap_write(ge2d->map, GE2D_DST_CLIPX_START_END,
232 FIELD_PREP(GE2D_START, ctx->out.crop.left) |
233 FIELD_PREP(GE2D_END, ctx->out.crop.left + ctx->out.crop.width));
234
235 regmap_write(ge2d->map, GE2D_SRC1_Y_START_END,
236 FIELD_PREP(GE2D_END, ctx->in.pix_fmt.height));
237 regmap_write(ge2d->map, GE2D_SRC1_X_START_END,
238 FIELD_PREP(GE2D_END, ctx->in.pix_fmt.width));
239 regmap_write(ge2d->map, GE2D_SRC2_Y_START_END,
240 FIELD_PREP(GE2D_END, ctx->out.pix_fmt.height));
241 regmap_write(ge2d->map, GE2D_SRC2_X_START_END,
242 FIELD_PREP(GE2D_END, ctx->out.pix_fmt.width));
243 regmap_write(ge2d->map, GE2D_DST_Y_START_END,
244 FIELD_PREP(GE2D_END, ctx->out.pix_fmt.height));
245 regmap_write(ge2d->map, GE2D_DST_X_START_END,
246 FIELD_PREP(GE2D_END, ctx->out.pix_fmt.width));
247
248
249 reg = GE2D_ALU_DO_COLOR_OPERATION_LOGIC(LOGIC_OPERATION_COPY,
250 COLOR_FACTOR_SRC_COLOR);
251
252 if (ctx->in.fmt->alpha && ctx->out.fmt->alpha)
253
254 reg |= GE2D_ALU_DO_ALPHA_OPERATION_LOGIC(LOGIC_OPERATION_COPY,
255 COLOR_FACTOR_SRC_ALPHA);
256 else if (!ctx->out.fmt->alpha)
257
258 reg |= GE2D_ALU_DO_ALPHA_OPERATION_LOGIC(LOGIC_OPERATION_SET,
259 COLOR_FACTOR_ZERO);
260 else
261
262 reg |= GE2D_ALU_DO_ALPHA_OPERATION_LOGIC(LOGIC_OPERATION_COPY,
263 COLOR_FACTOR_DST_ALPHA);
264
265 regmap_write(ge2d->map, GE2D_ALU_OP_CTRL, reg);
266
267
268 regmap_write(ge2d->map, GE2D_CMD_CTRL,
269 (ctx->xy_swap ? GE2D_DST_XY_SWAP : 0) |
270 (ctx->hflip ? GE2D_SRC1_Y_REV : 0) |
271 (ctx->vflip ? GE2D_SRC1_X_REV : 0) |
272 GE2D_CBUS_CMD_WR);
273}
274
275static void device_run(void *priv)
276{
277 struct ge2d_ctx *ctx = priv;
278 struct meson_ge2d *ge2d = ctx->ge2d;
279
280 ge2d->curr = ctx;
281
282 ctx->in.buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
283 ctx->out.buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
284
285 ge2d_hw_start(ge2d);
286}
287
288static irqreturn_t ge2d_isr(int irq, void *priv)
289{
290 struct meson_ge2d *ge2d = priv;
291 u32 intr;
292
293 regmap_read(ge2d->map, GE2D_STATUS0, &intr);
294
295 if (!(intr & GE2D_GE2D_BUSY)) {
296 struct vb2_v4l2_buffer *src, *dst;
297 struct ge2d_ctx *ctx = ge2d->curr;
298
299 ge2d->curr = NULL;
300
301 src = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
302 dst = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
303
304 src->sequence = ctx->sequence_out++;
305 dst->sequence = ctx->sequence_cap++;
306
307 dst->timecode = src->timecode;
308 dst->vb2_buf.timestamp = src->vb2_buf.timestamp;
309 dst->flags = src->flags;
310
311 v4l2_m2m_buf_done(src, VB2_BUF_STATE_DONE);
312 v4l2_m2m_buf_done(dst, VB2_BUF_STATE_DONE);
313 v4l2_m2m_job_finish(ge2d->m2m_dev, ctx->fh.m2m_ctx);
314 }
315
316 return IRQ_HANDLED;
317}
318
319static const struct v4l2_m2m_ops ge2d_m2m_ops = {
320 .device_run = device_run,
321};
322
323static int ge2d_queue_setup(struct vb2_queue *vq,
324 unsigned int *nbuffers, unsigned int *nplanes,
325 unsigned int sizes[], struct device *alloc_devs[])
326{
327 struct ge2d_ctx *ctx = vb2_get_drv_priv(vq);
328 struct ge2d_frame *f = get_frame(ctx, vq->type);
329
330 if (*nplanes)
331 return sizes[0] < f->pix_fmt.sizeimage ? -EINVAL : 0;
332
333 sizes[0] = f->pix_fmt.sizeimage;
334 *nplanes = 1;
335
336 return 0;
337}
338
339static int ge2d_buf_prepare(struct vb2_buffer *vb)
340{
341 struct ge2d_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
342 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
343 struct ge2d_frame *f = get_frame(ctx, vb->vb2_queue->type);
344
345 vbuf->field = V4L2_FIELD_NONE;
346
347 vb2_set_plane_payload(vb, 0, f->pix_fmt.sizeimage);
348
349 return 0;
350}
351
352static void ge2d_buf_queue(struct vb2_buffer *vb)
353{
354 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
355 struct ge2d_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
356
357 v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf);
358}
359
360static int ge2d_start_streaming(struct vb2_queue *vq, unsigned int count)
361{
362 struct ge2d_ctx *ctx = vb2_get_drv_priv(vq);
363
364 if (V4L2_TYPE_IS_OUTPUT(vq->type))
365 ctx->sequence_out = 0;
366 else
367 ctx->sequence_cap = 0;
368
369 return 0;
370}
371
372static void ge2d_stop_streaming(struct vb2_queue *vq)
373{
374 struct ge2d_ctx *ctx = vb2_get_drv_priv(vq);
375 struct vb2_v4l2_buffer *vbuf;
376
377 for (;;) {
378 if (V4L2_TYPE_IS_OUTPUT(vq->type))
379 vbuf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
380 else
381 vbuf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
382 if (!vbuf)
383 break;
384 v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_ERROR);
385 }
386}
387
388static const struct vb2_ops ge2d_qops = {
389 .queue_setup = ge2d_queue_setup,
390 .buf_prepare = ge2d_buf_prepare,
391 .buf_queue = ge2d_buf_queue,
392 .start_streaming = ge2d_start_streaming,
393 .stop_streaming = ge2d_stop_streaming,
394 .wait_prepare = vb2_ops_wait_prepare,
395 .wait_finish = vb2_ops_wait_finish,
396};
397
398static int
399queue_init(void *priv, struct vb2_queue *src_vq, struct vb2_queue *dst_vq)
400{
401 struct ge2d_ctx *ctx = priv;
402 int ret;
403
404 src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
405 src_vq->io_modes = VB2_MMAP | VB2_DMABUF;
406 src_vq->drv_priv = ctx;
407 src_vq->ops = &ge2d_qops;
408 src_vq->mem_ops = &vb2_dma_contig_memops;
409 src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
410 src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
411 src_vq->lock = &ctx->ge2d->mutex;
412 src_vq->dev = ctx->ge2d->v4l2_dev.dev;
413
414 ret = vb2_queue_init(src_vq);
415 if (ret)
416 return ret;
417
418 dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
419 dst_vq->io_modes = VB2_MMAP | VB2_DMABUF;
420 dst_vq->drv_priv = ctx;
421 dst_vq->ops = &ge2d_qops;
422 dst_vq->mem_ops = &vb2_dma_contig_memops;
423 dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
424 dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
425 dst_vq->lock = &ctx->ge2d->mutex;
426 dst_vq->dev = ctx->ge2d->v4l2_dev.dev;
427
428 return vb2_queue_init(dst_vq);
429}
430
431static int
432vidioc_querycap(struct file *file, void *priv, struct v4l2_capability *cap)
433{
434 strscpy(cap->driver, GE2D_NAME, sizeof(cap->driver));
435 strscpy(cap->card, GE2D_NAME, sizeof(cap->card));
436 strscpy(cap->bus_info, "platform:" GE2D_NAME, sizeof(cap->bus_info));
437
438 return 0;
439}
440
441static int vidioc_enum_fmt(struct file *file, void *priv, struct v4l2_fmtdesc *f)
442{
443 const struct ge2d_fmt *fmt;
444
445 if (f->index >= NUM_FORMATS)
446 return -EINVAL;
447
448 fmt = &formats[f->index];
449 f->pixelformat = fmt->fourcc;
450
451 return 0;
452}
453
454static int vidioc_g_selection(struct file *file, void *priv,
455 struct v4l2_selection *s)
456{
457 struct ge2d_ctx *ctx = priv;
458 struct ge2d_frame *f;
459 bool use_frame = false;
460
461 if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
462 s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
463 return -EINVAL;
464
465 f = get_frame(ctx, s->type);
466
467 switch (s->target) {
468 case V4L2_SEL_TGT_COMPOSE_DEFAULT:
469 case V4L2_SEL_TGT_COMPOSE_BOUNDS:
470 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
471 return -EINVAL;
472 break;
473 case V4L2_SEL_TGT_CROP_DEFAULT:
474 case V4L2_SEL_TGT_CROP_BOUNDS:
475 if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
476 return -EINVAL;
477 break;
478 case V4L2_SEL_TGT_COMPOSE:
479 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
480 return -EINVAL;
481 use_frame = true;
482 break;
483 case V4L2_SEL_TGT_CROP:
484 if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
485 return -EINVAL;
486 use_frame = true;
487 break;
488 default:
489 return -EINVAL;
490 }
491
492 if (use_frame) {
493 s->r = f->crop;
494 } else {
495 s->r.left = 0;
496 s->r.top = 0;
497 s->r.width = f->pix_fmt.width;
498 s->r.height = f->pix_fmt.height;
499 }
500
501 return 0;
502}
503
504static int vidioc_s_selection(struct file *file, void *priv,
505 struct v4l2_selection *s)
506{
507 struct ge2d_ctx *ctx = priv;
508 struct meson_ge2d *ge2d = ctx->ge2d;
509 struct ge2d_frame *f;
510 int ret = 0;
511
512 if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
513 s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
514 return -EINVAL;
515
516 f = get_frame(ctx, s->type);
517
518 switch (s->target) {
519 case V4L2_SEL_TGT_COMPOSE:
520
521
522
523
524 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
525 return -EINVAL;
526 break;
527 case V4L2_SEL_TGT_CROP:
528
529
530
531
532 if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
533 return -EINVAL;
534 break;
535
536
537
538
539 default:
540 return -EINVAL;
541 }
542
543 if (s->r.top < 0 || s->r.left < 0) {
544 v4l2_err(&ge2d->v4l2_dev,
545 "doesn't support negative values for top & left.\n");
546 return -EINVAL;
547 }
548
549 if (s->r.left + s->r.width > f->pix_fmt.width ||
550 s->r.top + s->r.height > f->pix_fmt.height) {
551 v4l2_err(&ge2d->v4l2_dev, "unsupported rectangle value.\n");
552 return -EINVAL;
553 }
554
555 f->crop = s->r;
556
557 return ret;
558}
559
560static void vidioc_setup_cap_fmt(struct ge2d_ctx *ctx, struct v4l2_pix_format *f)
561{
562 struct ge2d_frame *frm_out = get_frame(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
563
564 *f = frm_out->pix_fmt;
565
566 if (ctx->xy_swap) {
567 f->width = frm_out->pix_fmt.height;
568 f->height = frm_out->pix_fmt.width;
569 }
570}
571
572static int vidioc_try_fmt_cap(struct file *file, void *priv, struct v4l2_format *f)
573{
574 const struct ge2d_fmt *fmt = find_fmt(f);
575 struct ge2d_ctx *ctx = priv;
576 struct v4l2_pix_format fmt_cap;
577
578 vidioc_setup_cap_fmt(ctx, &fmt_cap);
579
580 fmt_cap.pixelformat = fmt->fourcc;
581
582 fmt_cap.bytesperline = max(f->fmt.pix.bytesperline,
583 ALIGN((fmt_cap.width * fmt->depth) >> 3, 8));
584
585 fmt_cap.sizeimage = max(f->fmt.pix.sizeimage,
586 fmt_cap.height * fmt_cap.bytesperline);
587
588 f->fmt.pix = fmt_cap;
589
590 return 0;
591}
592
593static int vidioc_s_fmt_cap(struct file *file, void *priv, struct v4l2_format *f)
594{
595 struct ge2d_ctx *ctx = priv;
596 struct meson_ge2d *ge2d = ctx->ge2d;
597 struct vb2_queue *vq;
598 struct ge2d_frame *frm;
599 int ret = 0;
600
601
602
603
604 ret = vidioc_try_fmt_cap(file, priv, f);
605 if (ret)
606 return ret;
607
608 vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
609 if (vb2_is_busy(vq)) {
610 v4l2_err(&ge2d->v4l2_dev, "queue (%d) bust\n", f->type);
611 return -EBUSY;
612 }
613
614 frm = get_frame(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
615
616 frm->pix_fmt = f->fmt.pix;
617 frm->fmt = find_fmt(f);
618 f->fmt.pix.pixelformat = frm->fmt->fourcc;
619
620
621 frm->crop.left = 0;
622 frm->crop.top = 0;
623 frm->crop.width = frm->pix_fmt.width;
624 frm->crop.height = frm->pix_fmt.height;
625
626 return 0;
627}
628
629static int vidioc_g_fmt(struct file *file, void *priv, struct v4l2_format *f)
630{
631 struct ge2d_ctx *ctx = priv;
632 struct vb2_queue *vq;
633 struct ge2d_frame *frm;
634
635 vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
636 if (!vq)
637 return -EINVAL;
638
639 frm = get_frame(ctx, f->type);
640
641 f->fmt.pix = frm->pix_fmt;
642 f->fmt.pix.pixelformat = frm->fmt->fourcc;
643
644 return 0;
645}
646
647static int vidioc_try_fmt_out(struct file *file, void *priv, struct v4l2_format *f)
648{
649 const struct ge2d_fmt *fmt = find_fmt(f);
650
651 f->fmt.pix.field = V4L2_FIELD_NONE;
652 f->fmt.pix.pixelformat = fmt->fourcc;
653
654 if (f->fmt.pix.width > MAX_WIDTH)
655 f->fmt.pix.width = MAX_WIDTH;
656 if (f->fmt.pix.height > MAX_HEIGHT)
657 f->fmt.pix.height = MAX_HEIGHT;
658
659 f->fmt.pix.bytesperline = max(f->fmt.pix.bytesperline,
660 ALIGN((f->fmt.pix.width * fmt->depth) >> 3, 8));
661
662 f->fmt.pix.sizeimage = max(f->fmt.pix.sizeimage,
663 f->fmt.pix.height * f->fmt.pix.bytesperline);
664
665 return 0;
666}
667
668static int vidioc_s_fmt_out(struct file *file, void *priv, struct v4l2_format *f)
669{
670 struct ge2d_ctx *ctx = priv;
671 struct meson_ge2d *ge2d = ctx->ge2d;
672 struct vb2_queue *vq;
673 struct ge2d_frame *frm, *frm_cap;
674 int ret = 0;
675
676
677
678
679 ret = vidioc_try_fmt_out(file, priv, f);
680 if (ret)
681 return ret;
682
683 vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
684 if (vb2_is_busy(vq)) {
685 v4l2_err(&ge2d->v4l2_dev, "queue (%d) bust\n", f->type);
686 return -EBUSY;
687 }
688
689 frm = get_frame(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
690 frm_cap = get_frame(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
691
692 frm->pix_fmt = f->fmt.pix;
693 frm->fmt = find_fmt(f);
694 f->fmt.pix.pixelformat = frm->fmt->fourcc;
695
696
697 frm->crop.left = 0;
698 frm->crop.top = 0;
699 frm->crop.width = frm->pix_fmt.width;
700 frm->crop.height = frm->pix_fmt.height;
701
702
703 vidioc_setup_cap_fmt(ctx, &frm_cap->pix_fmt);
704
705 return 0;
706}
707
708static const struct v4l2_ioctl_ops ge2d_ioctl_ops = {
709 .vidioc_querycap = vidioc_querycap,
710
711 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt,
712 .vidioc_g_fmt_vid_cap = vidioc_g_fmt,
713 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_cap,
714 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_cap,
715
716 .vidioc_enum_fmt_vid_out = vidioc_enum_fmt,
717 .vidioc_g_fmt_vid_out = vidioc_g_fmt,
718 .vidioc_try_fmt_vid_out = vidioc_try_fmt_out,
719 .vidioc_s_fmt_vid_out = vidioc_s_fmt_out,
720
721 .vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs,
722 .vidioc_querybuf = v4l2_m2m_ioctl_querybuf,
723 .vidioc_qbuf = v4l2_m2m_ioctl_qbuf,
724 .vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf,
725 .vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf,
726 .vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs,
727 .vidioc_expbuf = v4l2_m2m_ioctl_expbuf,
728
729 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
730 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
731
732 .vidioc_streamon = v4l2_m2m_ioctl_streamon,
733 .vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
734
735 .vidioc_g_selection = vidioc_g_selection,
736 .vidioc_s_selection = vidioc_s_selection,
737};
738
739static int ge2d_s_ctrl(struct v4l2_ctrl *ctrl)
740{
741 struct ge2d_ctx *ctx = container_of(ctrl->handler, struct ge2d_ctx,
742 ctrl_handler);
743 struct v4l2_pix_format fmt;
744 struct vb2_queue *vq;
745
746 switch (ctrl->id) {
747 case V4L2_CID_HFLIP:
748 ctx->hflip = ctrl->val;
749 break;
750 case V4L2_CID_VFLIP:
751 ctx->vflip = ctrl->val;
752 break;
753 case V4L2_CID_ROTATE:
754 vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
755 if (vb2_is_busy(vq))
756 return -EBUSY;
757
758 if (ctrl->val == 90) {
759 ctx->hflip = 0;
760 ctx->vflip = 1;
761 ctx->xy_swap = 1;
762 } else if (ctrl->val == 180) {
763 ctx->hflip = 1;
764 ctx->vflip = 1;
765 ctx->xy_swap = 0;
766 } else if (ctrl->val == 270) {
767 ctx->hflip = 1;
768 ctx->vflip = 0;
769 ctx->xy_swap = 1;
770 } else {
771 ctx->hflip = 0;
772 ctx->vflip = 0;
773 ctx->xy_swap = 0;
774 }
775
776 vidioc_setup_cap_fmt(ctx, &fmt);
777
778
779
780
781
782 if (fmt.width != ctx->out.pix_fmt.width ||
783 fmt.height != ctx->out.pix_fmt.width ||
784 fmt.bytesperline > ctx->out.pix_fmt.bytesperline ||
785 fmt.sizeimage > ctx->out.pix_fmt.sizeimage)
786 ctx->out.pix_fmt = fmt;
787
788 break;
789 }
790
791 return 0;
792}
793
794static const struct v4l2_ctrl_ops ge2d_ctrl_ops = {
795 .s_ctrl = ge2d_s_ctrl,
796};
797
798static int ge2d_setup_ctrls(struct ge2d_ctx *ctx)
799{
800 struct meson_ge2d *ge2d = ctx->ge2d;
801
802 v4l2_ctrl_handler_init(&ctx->ctrl_handler, 4);
803
804 v4l2_ctrl_new_std(&ctx->ctrl_handler, &ge2d_ctrl_ops,
805 V4L2_CID_HFLIP, 0, 1, 1, 0);
806
807 v4l2_ctrl_new_std(&ctx->ctrl_handler, &ge2d_ctrl_ops,
808 V4L2_CID_VFLIP, 0, 1, 1, 0);
809
810 v4l2_ctrl_new_std(&ctx->ctrl_handler, &ge2d_ctrl_ops,
811 V4L2_CID_ROTATE, 0, 270, 90, 0);
812
813 if (ctx->ctrl_handler.error) {
814 int err = ctx->ctrl_handler.error;
815
816 v4l2_err(&ge2d->v4l2_dev, "%s failed\n", __func__);
817 v4l2_ctrl_handler_free(&ctx->ctrl_handler);
818 return err;
819 }
820
821 return 0;
822}
823
824static const struct ge2d_frame def_frame = {
825 .pix_fmt = {
826 .width = DEFAULT_WIDTH,
827 .height = DEFAULT_HEIGHT,
828 .bytesperline = DEFAULT_STRIDE,
829 .sizeimage = DEFAULT_STRIDE * DEFAULT_HEIGHT,
830 .field = V4L2_FIELD_NONE,
831 },
832 .crop.width = DEFAULT_WIDTH,
833 .crop.height = DEFAULT_HEIGHT,
834 .fmt = &formats[0],
835};
836
837static int ge2d_open(struct file *file)
838{
839 struct meson_ge2d *ge2d = video_drvdata(file);
840 struct ge2d_ctx *ctx = NULL;
841 int ret = 0;
842
843 ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
844 if (!ctx)
845 return -ENOMEM;
846 ctx->ge2d = ge2d;
847
848
849 ctx->in = def_frame;
850 ctx->out = def_frame;
851
852 if (mutex_lock_interruptible(&ge2d->mutex)) {
853 kfree(ctx);
854 return -ERESTARTSYS;
855 }
856 ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(ge2d->m2m_dev, ctx, &queue_init);
857 if (IS_ERR(ctx->fh.m2m_ctx)) {
858 ret = PTR_ERR(ctx->fh.m2m_ctx);
859 mutex_unlock(&ge2d->mutex);
860 kfree(ctx);
861 return ret;
862 }
863 v4l2_fh_init(&ctx->fh, video_devdata(file));
864 file->private_data = &ctx->fh;
865 v4l2_fh_add(&ctx->fh);
866
867 ge2d_setup_ctrls(ctx);
868
869
870 v4l2_ctrl_handler_setup(&ctx->ctrl_handler);
871
872 ctx->fh.ctrl_handler = &ctx->ctrl_handler;
873 mutex_unlock(&ge2d->mutex);
874
875 return 0;
876}
877
878static int ge2d_release(struct file *file)
879{
880 struct ge2d_ctx *ctx =
881 container_of(file->private_data, struct ge2d_ctx, fh);
882 struct meson_ge2d *ge2d = ctx->ge2d;
883
884 mutex_lock(&ge2d->mutex);
885
886 v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
887
888 v4l2_ctrl_handler_free(&ctx->ctrl_handler);
889 v4l2_fh_del(&ctx->fh);
890 v4l2_fh_exit(&ctx->fh);
891 kfree(ctx);
892
893 mutex_unlock(&ge2d->mutex);
894
895 return 0;
896}
897
898static const struct v4l2_file_operations ge2d_fops = {
899 .owner = THIS_MODULE,
900 .open = ge2d_open,
901 .release = ge2d_release,
902 .poll = v4l2_m2m_fop_poll,
903 .unlocked_ioctl = video_ioctl2,
904 .mmap = v4l2_m2m_fop_mmap,
905};
906
907static const struct video_device ge2d_videodev = {
908 .name = "meson-ge2d",
909 .fops = &ge2d_fops,
910 .ioctl_ops = &ge2d_ioctl_ops,
911 .minor = -1,
912 .release = video_device_release,
913 .vfl_dir = VFL_DIR_M2M,
914 .device_caps = V4L2_CAP_VIDEO_M2M | V4L2_CAP_STREAMING,
915};
916
917static const struct regmap_config meson_ge2d_regmap_conf = {
918 .reg_bits = 8,
919 .val_bits = 32,
920 .reg_stride = 4,
921 .max_register = GE2D_SRC2_STRIDE_CTRL,
922};
923
924static int ge2d_probe(struct platform_device *pdev)
925{
926 struct reset_control *rst;
927 struct video_device *vfd;
928 struct meson_ge2d *ge2d;
929 struct resource *res;
930 void __iomem *regs;
931 int ret = 0;
932 int irq;
933
934 if (!pdev->dev.of_node)
935 return -ENODEV;
936
937 ge2d = devm_kzalloc(&pdev->dev, sizeof(*ge2d), GFP_KERNEL);
938 if (!ge2d)
939 return -ENOMEM;
940
941 ge2d->dev = &pdev->dev;
942 mutex_init(&ge2d->mutex);
943
944 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
945 regs = devm_ioremap_resource(ge2d->dev, res);
946 if (IS_ERR(regs))
947 return PTR_ERR(regs);
948
949 ge2d->map = devm_regmap_init_mmio(ge2d->dev, regs,
950 &meson_ge2d_regmap_conf);
951 if (IS_ERR(ge2d->map))
952 return PTR_ERR(ge2d->map);
953
954 irq = platform_get_irq(pdev, 0);
955 ret = devm_request_irq(ge2d->dev, irq, ge2d_isr, 0,
956 dev_name(ge2d->dev), ge2d);
957 if (ret < 0) {
958 dev_err(ge2d->dev, "failed to request irq\n");
959 return ret;
960 }
961
962 rst = devm_reset_control_get(ge2d->dev, NULL);
963 if (IS_ERR(rst)) {
964 dev_err(ge2d->dev, "failed to get core reset controller\n");
965 return PTR_ERR(rst);
966 }
967
968 ge2d->clk = devm_clk_get(ge2d->dev, NULL);
969 if (IS_ERR(ge2d->clk)) {
970 dev_err(ge2d->dev, "failed to get clock\n");
971 return PTR_ERR(ge2d->clk);
972 }
973
974 reset_control_assert(rst);
975 udelay(1);
976 reset_control_deassert(rst);
977
978 ret = clk_prepare_enable(ge2d->clk);
979 if (ret) {
980 dev_err(ge2d->dev, "Cannot enable ge2d sclk: %d\n", ret);
981 return ret;
982 }
983
984 ret = v4l2_device_register(&pdev->dev, &ge2d->v4l2_dev);
985 if (ret)
986 goto disable_clks;
987
988 vfd = video_device_alloc();
989 if (!vfd) {
990 v4l2_err(&ge2d->v4l2_dev, "Failed to allocate video device\n");
991 ret = -ENOMEM;
992 goto unreg_v4l2_dev;
993 }
994
995 *vfd = ge2d_videodev;
996 vfd->lock = &ge2d->mutex;
997 vfd->v4l2_dev = &ge2d->v4l2_dev;
998
999 video_set_drvdata(vfd, ge2d);
1000 ge2d->vfd = vfd;
1001
1002 platform_set_drvdata(pdev, ge2d);
1003 ge2d->m2m_dev = v4l2_m2m_init(&ge2d_m2m_ops);
1004 if (IS_ERR(ge2d->m2m_dev)) {
1005 v4l2_err(&ge2d->v4l2_dev, "Failed to init mem2mem device\n");
1006 ret = PTR_ERR(ge2d->m2m_dev);
1007 goto rel_vdev;
1008 }
1009
1010 ret = video_register_device(vfd, VFL_TYPE_VIDEO, -1);
1011 if (ret) {
1012 v4l2_err(&ge2d->v4l2_dev, "Failed to register video device\n");
1013 goto rel_m2m;
1014 }
1015
1016 v4l2_info(&ge2d->v4l2_dev, "Registered %s as /dev/%s\n",
1017 vfd->name, video_device_node_name(vfd));
1018
1019 return 0;
1020
1021rel_m2m:
1022 v4l2_m2m_release(ge2d->m2m_dev);
1023rel_vdev:
1024 video_device_release(ge2d->vfd);
1025unreg_v4l2_dev:
1026 v4l2_device_unregister(&ge2d->v4l2_dev);
1027disable_clks:
1028 clk_disable_unprepare(ge2d->clk);
1029
1030 return ret;
1031}
1032
1033static int ge2d_remove(struct platform_device *pdev)
1034{
1035 struct meson_ge2d *ge2d = platform_get_drvdata(pdev);
1036
1037 video_unregister_device(ge2d->vfd);
1038 v4l2_m2m_release(ge2d->m2m_dev);
1039 video_device_release(ge2d->vfd);
1040 v4l2_device_unregister(&ge2d->v4l2_dev);
1041 clk_disable_unprepare(ge2d->clk);
1042
1043 return 0;
1044}
1045
1046static const struct of_device_id meson_ge2d_match[] = {
1047 {
1048 .compatible = "amlogic,axg-ge2d",
1049 },
1050 {},
1051};
1052
1053MODULE_DEVICE_TABLE(of, meson_ge2d_match);
1054
1055static struct platform_driver ge2d_drv = {
1056 .probe = ge2d_probe,
1057 .remove = ge2d_remove,
1058 .driver = {
1059 .name = "meson-ge2d",
1060 .of_match_table = meson_ge2d_match,
1061 },
1062};
1063
1064module_platform_driver(ge2d_drv);
1065
1066MODULE_AUTHOR("Neil Armstrong <narmstrong@baylibre.com>");
1067MODULE_DESCRIPTION("Amlogic 2D Graphic Acceleration Unit");
1068MODULE_LICENSE("GPL");
1069
