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Merge tag 'trace-printf-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/trace...
[drm/drm-misc.git] / drivers / media / platform / amlogic / meson-ge2d / ge2d.c
blob0c004bb8ba05059245e73a306ed2d20dc18c9197
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Copyright (C) 2020 BayLibre, SAS
4 * Author: Neil Armstrong <narmstrong@baylibre.com>
5 */
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 * Missing features:
41 * - Scaling
42 * - Simple 1/2 vertical scaling
43 * - YUV input support
44 * - Source global alpha
45 * - Colorspace conversion
46 */
47
48 struct 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
57 struct ge2d_frame {
58 struct vb2_v4l2_buffer *buf;
59
60 /* Image Format */
61 struct v4l2_pix_format pix_fmt;
62
63 /* Crop */
64 struct v4l2_rect crop;
65
66 /* Image format */
67 const struct ge2d_fmt *fmt;
68 };
69
70 struct 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 /* Control values */
80 u32 hflip;
81 u32 vflip;
82 u32 xy_swap;
83 };
84
85 struct 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 /* vb2 queue lock */
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 /* TOFIX Handle the YUV input formats */
110 static const struct ge2d_fmt formats[] = {
111 /* FOURCC Alpha HW FMT HW MAP */
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
137 static 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 * TRY_FMT/S_FMT should never return an error when the requested format
148 * is not supported. Drivers should always return a valid format,
149 * preferably a format that is as widely supported by applications as
150 * possible.
151 */
152 return &formats[0];
153 }
154
155 static 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 /* This should never happen, warn and return OUTPUT frame */
165 dev_warn(ctx->ge2d->dev, "%s: invalid buffer type\n", __func__);
166 return &ctx->in;
167 }
168 }
169
170 static void ge2d_hw_start(struct meson_ge2d *ge2d)
171 {
172 struct ge2d_ctx *ctx = ge2d->curr;
173 u32 reg;
174
175 /* Reset */
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 /* Implement CANVAS for non-AXG */
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 - 1));
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 - 1));
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 - 1));
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 - 1));
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 - 1));
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 - 1));
234
235 regmap_write(ge2d->map, GE2D_SRC1_Y_START_END,
236 FIELD_PREP(GE2D_END, ctx->in.pix_fmt.height - 1));
237 regmap_write(ge2d->map, GE2D_SRC1_X_START_END,
238 FIELD_PREP(GE2D_END, ctx->in.pix_fmt.width - 1));
239 regmap_write(ge2d->map, GE2D_SRC2_Y_START_END,
240 FIELD_PREP(GE2D_END, ctx->out.pix_fmt.height - 1));
241 regmap_write(ge2d->map, GE2D_SRC2_X_START_END,
242 FIELD_PREP(GE2D_END, ctx->out.pix_fmt.width - 1));
243 regmap_write(ge2d->map, GE2D_DST_Y_START_END,
244 FIELD_PREP(GE2D_END, ctx->out.pix_fmt.height - 1));
245 regmap_write(ge2d->map, GE2D_DST_X_START_END,
246 FIELD_PREP(GE2D_END, ctx->out.pix_fmt.width - 1));
247
248 /* Color, no blend, use source color */
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 /* Take source alpha */
254 reg |= GE2D_ALU_DO_ALPHA_OPERATION_LOGIC(LOGIC_OPERATION_COPY,
255 COLOR_FACTOR_SRC_ALPHA);
256 else if (!ctx->out.fmt->alpha)
257 /* Set alpha to 0 */
258 reg |= GE2D_ALU_DO_ALPHA_OPERATION_LOGIC(LOGIC_OPERATION_SET,
259 COLOR_FACTOR_ZERO);
260 else
261 /* Keep original alpha */
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 /* Start */
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
275 static 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
288 static 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
319 static const struct v4l2_m2m_ops ge2d_m2m_ops = {
320 .device_run = device_run,
321 };
322
323 static 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
339 static 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
352 static 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
360 static 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
372 static 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
388 static 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 };
395
396 static int
397 queue_init(void *priv, struct vb2_queue *src_vq, struct vb2_queue *dst_vq)
398 {
399 struct ge2d_ctx *ctx = priv;
400 int ret;
401
402 src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
403 src_vq->io_modes = VB2_MMAP | VB2_DMABUF;
404 src_vq->drv_priv = ctx;
405 src_vq->ops = &ge2d_qops;
406 src_vq->mem_ops = &vb2_dma_contig_memops;
407 src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
408 src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
409 src_vq->lock = &ctx->ge2d->mutex;
410 src_vq->dev = ctx->ge2d->v4l2_dev.dev;
411
412 ret = vb2_queue_init(src_vq);
413 if (ret)
414 return ret;
415
416 dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
417 dst_vq->io_modes = VB2_MMAP | VB2_DMABUF;
418 dst_vq->drv_priv = ctx;
419 dst_vq->ops = &ge2d_qops;
420 dst_vq->mem_ops = &vb2_dma_contig_memops;
421 dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
422 dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
423 dst_vq->lock = &ctx->ge2d->mutex;
424 dst_vq->dev = ctx->ge2d->v4l2_dev.dev;
425
426 return vb2_queue_init(dst_vq);
427 }
428
429 static int
430 vidioc_querycap(struct file *file, void *priv, struct v4l2_capability *cap)
431 {
432 strscpy(cap->driver, GE2D_NAME, sizeof(cap->driver));
433 strscpy(cap->card, GE2D_NAME, sizeof(cap->card));
434 strscpy(cap->bus_info, "platform:" GE2D_NAME, sizeof(cap->bus_info));
435
436 return 0;
437 }
438
439 static int vidioc_enum_fmt(struct file *file, void *priv, struct v4l2_fmtdesc *f)
440 {
441 const struct ge2d_fmt *fmt;
442
443 if (f->index >= NUM_FORMATS)
444 return -EINVAL;
445
446 fmt = &formats[f->index];
447 f->pixelformat = fmt->fourcc;
448
449 return 0;
450 }
451
452 static int vidioc_g_selection(struct file *file, void *priv,
453 struct v4l2_selection *s)
454 {
455 struct ge2d_ctx *ctx = priv;
456 struct ge2d_frame *f;
457 bool use_frame = false;
458
459 if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
460 s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
461 return -EINVAL;
462
463 f = get_frame(ctx, s->type);
464
465 switch (s->target) {
466 case V4L2_SEL_TGT_COMPOSE_DEFAULT:
467 case V4L2_SEL_TGT_COMPOSE_BOUNDS:
468 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
469 return -EINVAL;
470 break;
471 case V4L2_SEL_TGT_CROP_DEFAULT:
472 case V4L2_SEL_TGT_CROP_BOUNDS:
473 if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
474 return -EINVAL;
475 break;
476 case V4L2_SEL_TGT_COMPOSE:
477 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
478 return -EINVAL;
479 use_frame = true;
480 break;
481 case V4L2_SEL_TGT_CROP:
482 if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
483 return -EINVAL;
484 use_frame = true;
485 break;
486 default:
487 return -EINVAL;
488 }
489
490 if (use_frame) {
491 s->r = f->crop;
492 } else {
493 s->r.left = 0;
494 s->r.top = 0;
495 s->r.width = f->pix_fmt.width;
496 s->r.height = f->pix_fmt.height;
497 }
498
499 return 0;
500 }
501
502 static int vidioc_s_selection(struct file *file, void *priv,
503 struct v4l2_selection *s)
504 {
505 struct ge2d_ctx *ctx = priv;
506 struct meson_ge2d *ge2d = ctx->ge2d;
507 struct ge2d_frame *f;
508 int ret = 0;
509
510 if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
511 s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
512 return -EINVAL;
513
514 f = get_frame(ctx, s->type);
515
516 switch (s->target) {
517 case V4L2_SEL_TGT_COMPOSE:
518 /*
519 * COMPOSE target is only valid for capture buffer type, return
520 * error for output buffer type
521 */
522 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
523 return -EINVAL;
524 break;
525 case V4L2_SEL_TGT_CROP:
526 /*
527 * CROP target is only valid for output buffer type, return
528 * error for capture buffer type
529 */
530 if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
531 return -EINVAL;
532 break;
533 /*
534 * bound and default crop/compose targets are invalid targets to
535 * try/set
536 */
537 default:
538 return -EINVAL;
539 }
540
541 if (s->r.top < 0 || s->r.left < 0) {
542 v4l2_err(&ge2d->v4l2_dev,
543 "doesn't support negative values for top & left.\n");
544 return -EINVAL;
545 }
546
547 if (s->r.left + s->r.width > f->pix_fmt.width ||
548 s->r.top + s->r.height > f->pix_fmt.height) {
549 v4l2_err(&ge2d->v4l2_dev, "unsupported rectangle value.\n");
550 return -EINVAL;
551 }
552
553 f->crop = s->r;
554
555 return ret;
556 }
557
558 static void vidioc_setup_cap_fmt(struct ge2d_ctx *ctx, struct v4l2_pix_format *f)
559 {
560 struct ge2d_frame *frm_out = get_frame(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
561
562 *f = frm_out->pix_fmt;
563
564 if (ctx->xy_swap) {
565 f->width = frm_out->pix_fmt.height;
566 f->height = frm_out->pix_fmt.width;
567 }
568 }
569
570 static int vidioc_try_fmt_cap(struct file *file, void *priv, struct v4l2_format *f)
571 {
572 const struct ge2d_fmt *fmt = find_fmt(f);
573 struct ge2d_ctx *ctx = priv;
574 struct v4l2_pix_format fmt_cap;
575
576 vidioc_setup_cap_fmt(ctx, &fmt_cap);
577
578 fmt_cap.pixelformat = fmt->fourcc;
579
580 fmt_cap.bytesperline = max(f->fmt.pix.bytesperline,
581 ALIGN((fmt_cap.width * fmt->depth) >> 3, 8));
582
583 fmt_cap.sizeimage = max(f->fmt.pix.sizeimage,
584 fmt_cap.height * fmt_cap.bytesperline);
585
586 f->fmt.pix = fmt_cap;
587
588 return 0;
589 }
590
591 static int vidioc_s_fmt_cap(struct file *file, void *priv, struct v4l2_format *f)
592 {
593 struct ge2d_ctx *ctx = priv;
594 struct meson_ge2d *ge2d = ctx->ge2d;
595 struct vb2_queue *vq;
596 struct ge2d_frame *frm;
597 int ret = 0;
598
599 /* Adjust all values accordingly to the hardware capabilities
600 * and chosen format.
601 */
602 ret = vidioc_try_fmt_cap(file, priv, f);
603 if (ret)
604 return ret;
605
606 vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
607 if (vb2_is_busy(vq)) {
608 v4l2_err(&ge2d->v4l2_dev, "queue (%d) bust\n", f->type);
609 return -EBUSY;
610 }
611
612 frm = get_frame(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
613
614 frm->pix_fmt = f->fmt.pix;
615 frm->fmt = find_fmt(f);
616 f->fmt.pix.pixelformat = frm->fmt->fourcc;
617
618 /* Reset crop settings */
619 frm->crop.left = 0;
620 frm->crop.top = 0;
621 frm->crop.width = frm->pix_fmt.width;
622 frm->crop.height = frm->pix_fmt.height;
623
624 return 0;
625 }
626
627 static int vidioc_g_fmt(struct file *file, void *priv, struct v4l2_format *f)
628 {
629 struct ge2d_ctx *ctx = priv;
630 struct vb2_queue *vq;
631 struct ge2d_frame *frm;
632
633 vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
634 if (!vq)
635 return -EINVAL;
636
637 frm = get_frame(ctx, f->type);
638
639 f->fmt.pix = frm->pix_fmt;
640 f->fmt.pix.pixelformat = frm->fmt->fourcc;
641
642 return 0;
643 }
644
645 static int vidioc_try_fmt_out(struct file *file, void *priv, struct v4l2_format *f)
646 {
647 const struct ge2d_fmt *fmt = find_fmt(f);
648
649 f->fmt.pix.field = V4L2_FIELD_NONE;
650 f->fmt.pix.pixelformat = fmt->fourcc;
651
652 if (f->fmt.pix.width > MAX_WIDTH)
653 f->fmt.pix.width = MAX_WIDTH;
654 if (f->fmt.pix.height > MAX_HEIGHT)
655 f->fmt.pix.height = MAX_HEIGHT;
656
657 f->fmt.pix.bytesperline = max(f->fmt.pix.bytesperline,
658 ALIGN((f->fmt.pix.width * fmt->depth) >> 3, 8));
659
660 f->fmt.pix.sizeimage = max(f->fmt.pix.sizeimage,
661 f->fmt.pix.height * f->fmt.pix.bytesperline);
662
663 return 0;
664 }
665
666 static int vidioc_s_fmt_out(struct file *file, void *priv, struct v4l2_format *f)
667 {
668 struct ge2d_ctx *ctx = priv;
669 struct meson_ge2d *ge2d = ctx->ge2d;
670 struct vb2_queue *vq;
671 struct ge2d_frame *frm, *frm_cap;
672 int ret = 0;
673
674 /* Adjust all values accordingly to the hardware capabilities
675 * and chosen format.
676 */
677 ret = vidioc_try_fmt_out(file, priv, f);
678 if (ret)
679 return ret;
680
681 vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
682 if (vb2_is_busy(vq)) {
683 v4l2_err(&ge2d->v4l2_dev, "queue (%d) bust\n", f->type);
684 return -EBUSY;
685 }
686
687 frm = get_frame(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
688 frm_cap = get_frame(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
689
690 frm->pix_fmt = f->fmt.pix;
691 frm->fmt = find_fmt(f);
692 f->fmt.pix.pixelformat = frm->fmt->fourcc;
693
694 /* Reset crop settings */
695 frm->crop.left = 0;
696 frm->crop.top = 0;
697 frm->crop.width = frm->pix_fmt.width;
698 frm->crop.height = frm->pix_fmt.height;
699
700 /* Propagate settings to capture */
701 vidioc_setup_cap_fmt(ctx, &frm_cap->pix_fmt);
702
703 return 0;
704 }
705
706 static const struct v4l2_ioctl_ops ge2d_ioctl_ops = {
707 .vidioc_querycap = vidioc_querycap,
708
709 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt,
710 .vidioc_g_fmt_vid_cap = vidioc_g_fmt,
711 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_cap,
712 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_cap,
713
714 .vidioc_enum_fmt_vid_out = vidioc_enum_fmt,
715 .vidioc_g_fmt_vid_out = vidioc_g_fmt,
716 .vidioc_try_fmt_vid_out = vidioc_try_fmt_out,
717 .vidioc_s_fmt_vid_out = vidioc_s_fmt_out,
718
719 .vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs,
720 .vidioc_querybuf = v4l2_m2m_ioctl_querybuf,
721 .vidioc_qbuf = v4l2_m2m_ioctl_qbuf,
722 .vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf,
723 .vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf,
724 .vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs,
725 .vidioc_expbuf = v4l2_m2m_ioctl_expbuf,
726
727 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
728 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
729
730 .vidioc_streamon = v4l2_m2m_ioctl_streamon,
731 .vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
732
733 .vidioc_g_selection = vidioc_g_selection,
734 .vidioc_s_selection = vidioc_s_selection,
735 };
736
737 static int ge2d_s_ctrl(struct v4l2_ctrl *ctrl)
738 {
739 struct ge2d_ctx *ctx = container_of(ctrl->handler, struct ge2d_ctx,
740 ctrl_handler);
741 struct v4l2_pix_format fmt;
742 struct vb2_queue *vq;
743
744 switch (ctrl->id) {
745 case V4L2_CID_HFLIP:
746 ctx->hflip = ctrl->val;
747 break;
748 case V4L2_CID_VFLIP:
749 ctx->vflip = ctrl->val;
750 break;
751 case V4L2_CID_ROTATE:
752 vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
753 if (vb2_is_busy(vq))
754 return -EBUSY;
755
756 if (ctrl->val == 90) {
757 ctx->hflip = 0;
758 ctx->vflip = 1;
759 ctx->xy_swap = 1;
760 } else if (ctrl->val == 180) {
761 ctx->hflip = 1;
762 ctx->vflip = 1;
763 ctx->xy_swap = 0;
764 } else if (ctrl->val == 270) {
765 ctx->hflip = 1;
766 ctx->vflip = 0;
767 ctx->xy_swap = 1;
768 } else {
769 ctx->hflip = 0;
770 ctx->vflip = 0;
771 ctx->xy_swap = 0;
772 }
773
774 vidioc_setup_cap_fmt(ctx, &fmt);
775
776 /*
777 * If the rotation parameter changes the OUTPUT frames
778 * parameters, take them in account
779 */
780 ctx->out.pix_fmt = fmt;
781
782 break;
783 }
784
785 return 0;
786 }
787
788 static const struct v4l2_ctrl_ops ge2d_ctrl_ops = {
789 .s_ctrl = ge2d_s_ctrl,
790 };
791
792 static int ge2d_setup_ctrls(struct ge2d_ctx *ctx)
793 {
794 struct meson_ge2d *ge2d = ctx->ge2d;
795
796 v4l2_ctrl_handler_init(&ctx->ctrl_handler, 4);
797
798 v4l2_ctrl_new_std(&ctx->ctrl_handler, &ge2d_ctrl_ops,
799 V4L2_CID_HFLIP, 0, 1, 1, 0);
800
801 v4l2_ctrl_new_std(&ctx->ctrl_handler, &ge2d_ctrl_ops,
802 V4L2_CID_VFLIP, 0, 1, 1, 0);
803
804 v4l2_ctrl_new_std(&ctx->ctrl_handler, &ge2d_ctrl_ops,
805 V4L2_CID_ROTATE, 0, 270, 90, 0);
806
807 if (ctx->ctrl_handler.error) {
808 int err = ctx->ctrl_handler.error;
809
810 v4l2_err(&ge2d->v4l2_dev, "%s failed\n", __func__);
811 v4l2_ctrl_handler_free(&ctx->ctrl_handler);
812 return err;
813 }
814
815 return 0;
816 }
817
818 static const struct ge2d_frame def_frame = {
819 .pix_fmt = {
820 .width = DEFAULT_WIDTH,
821 .height = DEFAULT_HEIGHT,
822 .bytesperline = DEFAULT_STRIDE,
823 .sizeimage = DEFAULT_STRIDE * DEFAULT_HEIGHT,
824 .field = V4L2_FIELD_NONE,
825 },
826 .crop.width = DEFAULT_WIDTH,
827 .crop.height = DEFAULT_HEIGHT,
828 .fmt = &formats[0],
829 };
830
831 static int ge2d_open(struct file *file)
832 {
833 struct meson_ge2d *ge2d = video_drvdata(file);
834 struct ge2d_ctx *ctx = NULL;
835 int ret = 0;
836
837 ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
838 if (!ctx)
839 return -ENOMEM;
840 ctx->ge2d = ge2d;
841
842 /* Set default formats */
843 ctx->in = def_frame;
844 ctx->out = def_frame;
845
846 if (mutex_lock_interruptible(&ge2d->mutex)) {
847 kfree(ctx);
848 return -ERESTARTSYS;
849 }
850 ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(ge2d->m2m_dev, ctx, &queue_init);
851 if (IS_ERR(ctx->fh.m2m_ctx)) {
852 ret = PTR_ERR(ctx->fh.m2m_ctx);
853 mutex_unlock(&ge2d->mutex);
854 kfree(ctx);
855 return ret;
856 }
857 v4l2_fh_init(&ctx->fh, video_devdata(file));
858 file->private_data = &ctx->fh;
859 v4l2_fh_add(&ctx->fh);
860
861 ge2d_setup_ctrls(ctx);
862
863 /* Write the default values to the ctx struct */
864 v4l2_ctrl_handler_setup(&ctx->ctrl_handler);
865
866 ctx->fh.ctrl_handler = &ctx->ctrl_handler;
867 mutex_unlock(&ge2d->mutex);
868
869 return 0;
870 }
871
872 static int ge2d_release(struct file *file)
873 {
874 struct ge2d_ctx *ctx =
875 container_of(file->private_data, struct ge2d_ctx, fh);
876 struct meson_ge2d *ge2d = ctx->ge2d;
877
878 mutex_lock(&ge2d->mutex);
879
880 v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
881
882 v4l2_ctrl_handler_free(&ctx->ctrl_handler);
883 v4l2_fh_del(&ctx->fh);
884 v4l2_fh_exit(&ctx->fh);
885 kfree(ctx);
886
887 mutex_unlock(&ge2d->mutex);
888
889 return 0;
890 }
891
892 static const struct v4l2_file_operations ge2d_fops = {
893 .owner = THIS_MODULE,
894 .open = ge2d_open,
895 .release = ge2d_release,
896 .poll = v4l2_m2m_fop_poll,
897 .unlocked_ioctl = video_ioctl2,
898 .mmap = v4l2_m2m_fop_mmap,
899 };
900
901 static const struct video_device ge2d_videodev = {
902 .name = "meson-ge2d",
903 .fops = &ge2d_fops,
904 .ioctl_ops = &ge2d_ioctl_ops,
905 .minor = -1,
906 .release = video_device_release,
907 .vfl_dir = VFL_DIR_M2M,
908 .device_caps = V4L2_CAP_VIDEO_M2M | V4L2_CAP_STREAMING,
909 };
910
911 static const struct regmap_config meson_ge2d_regmap_conf = {
912 .reg_bits = 8,
913 .val_bits = 32,
914 .reg_stride = 4,
915 .max_register = GE2D_SRC2_STRIDE_CTRL,
916 };
917
918 static int ge2d_probe(struct platform_device *pdev)
919 {
920 struct reset_control *rst;
921 struct video_device *vfd;
922 struct meson_ge2d *ge2d;
923 void __iomem *regs;
924 int ret = 0;
925 int irq;
926
927 if (!pdev->dev.of_node)
928 return -ENODEV;
929
930 ge2d = devm_kzalloc(&pdev->dev, sizeof(*ge2d), GFP_KERNEL);
931 if (!ge2d)
932 return -ENOMEM;
933
934 ge2d->dev = &pdev->dev;
935 mutex_init(&ge2d->mutex);
936
937 regs = devm_platform_ioremap_resource(pdev, 0);
938 if (IS_ERR(regs))
939 return PTR_ERR(regs);
940
941 ge2d->map = devm_regmap_init_mmio(ge2d->dev, regs,
942 &meson_ge2d_regmap_conf);
943 if (IS_ERR(ge2d->map))
944 return PTR_ERR(ge2d->map);
945
946 irq = platform_get_irq(pdev, 0);
947 ret = devm_request_irq(ge2d->dev, irq, ge2d_isr, 0,
948 dev_name(ge2d->dev), ge2d);
949 if (ret < 0) {
950 dev_err(ge2d->dev, "failed to request irq\n");
951 return ret;
952 }
953
954 rst = devm_reset_control_get(ge2d->dev, NULL);
955 if (IS_ERR(rst)) {
956 dev_err(ge2d->dev, "failed to get core reset controller\n");
957 return PTR_ERR(rst);
958 }
959
960 ge2d->clk = devm_clk_get(ge2d->dev, NULL);
961 if (IS_ERR(ge2d->clk)) {
962 dev_err(ge2d->dev, "failed to get clock\n");
963 return PTR_ERR(ge2d->clk);
964 }
965
966 reset_control_assert(rst);
967 udelay(1);
968 reset_control_deassert(rst);
969
970 ret = clk_prepare_enable(ge2d->clk);
971 if (ret) {
972 dev_err(ge2d->dev, "Cannot enable ge2d sclk: %d\n", ret);
973 return ret;
974 }
975
976 ret = v4l2_device_register(&pdev->dev, &ge2d->v4l2_dev);
977 if (ret)
978 goto disable_clks;
979
980 vfd = video_device_alloc();
981 if (!vfd) {
982 v4l2_err(&ge2d->v4l2_dev, "Failed to allocate video device\n");
983 ret = -ENOMEM;
984 goto unreg_v4l2_dev;
985 }
986
987 *vfd = ge2d_videodev;
988 vfd->lock = &ge2d->mutex;
989 vfd->v4l2_dev = &ge2d->v4l2_dev;
990
991 video_set_drvdata(vfd, ge2d);
992 ge2d->vfd = vfd;
993
994 platform_set_drvdata(pdev, ge2d);
995 ge2d->m2m_dev = v4l2_m2m_init(&ge2d_m2m_ops);
996 if (IS_ERR(ge2d->m2m_dev)) {
997 v4l2_err(&ge2d->v4l2_dev, "Failed to init mem2mem device\n");
998 ret = PTR_ERR(ge2d->m2m_dev);
999 goto rel_vdev;
1000 }
1001
1002 ret = video_register_device(vfd, VFL_TYPE_VIDEO, -1);
1003 if (ret) {
1004 v4l2_err(&ge2d->v4l2_dev, "Failed to register video device\n");
1005 goto rel_m2m;
1006 }
1007
1008 v4l2_info(&ge2d->v4l2_dev, "Registered %s as /dev/%s\n",
1009 vfd->name, video_device_node_name(vfd));
1010
1011 return 0;
1012
1013 rel_m2m:
1014 v4l2_m2m_release(ge2d->m2m_dev);
1015 rel_vdev:
1016 video_device_release(ge2d->vfd);
1017 unreg_v4l2_dev:
1018 v4l2_device_unregister(&ge2d->v4l2_dev);
1019 disable_clks:
1020 clk_disable_unprepare(ge2d->clk);
1021
1022 return ret;
1023 }
1024
1025 static void ge2d_remove(struct platform_device *pdev)
1026 {
1027 struct meson_ge2d *ge2d = platform_get_drvdata(pdev);
1028
1029 video_unregister_device(ge2d->vfd);
1030 v4l2_m2m_release(ge2d->m2m_dev);
1031 v4l2_device_unregister(&ge2d->v4l2_dev);
1032 clk_disable_unprepare(ge2d->clk);
1033 }
1034
1035 static const struct of_device_id meson_ge2d_match[] = {
1036 {
1037 .compatible = "amlogic,axg-ge2d",
1038 },
1039 {},
1040 };
1041
1042 MODULE_DEVICE_TABLE(of, meson_ge2d_match);
1043
1044 static struct platform_driver ge2d_drv = {
1045 .probe = ge2d_probe,
1046 .remove = ge2d_remove,
1047 .driver = {
1048 .name = "meson-ge2d",
1049 .of_match_table = meson_ge2d_match,
1050 },
1051 };
1052
1053 module_platform_driver(ge2d_drv);
1054
1055 MODULE_AUTHOR("Neil Armstrong <narmstrong@baylibre.com>");
1056 MODULE_DESCRIPTION("Amlogic 2D Graphic Acceleration Unit");
1057 MODULE_LICENSE("GPL");
Kernel DRM miscellaneous fixes and cross-tree changes