1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Copyright (C) 2020 BayLibre, SAS
4 * Author: Neil Armstrong <narmstrong@baylibre.com>
8 #include <linux/delay.h>
9 #include <linux/bitfield.h>
10 #include <linux/interrupt.h>
11 #include <linux/module.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>
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>
28 #include "ge2d-regs.h"
30 #define GE2D_NAME "meson-ge2d"
32 #define DEFAULT_WIDTH 128
33 #define DEFAULT_HEIGHT 128
34 #define DEFAULT_STRIDE 512
36 #define MAX_WIDTH 8191
37 #define MAX_HEIGHT 8191
42 * - Simple 1/2 vertical scaling
44 * - Source global alpha
45 * - Colorspace conversion
58 struct vb2_v4l2_buffer *buf;
61 struct v4l2_pix_format pix_fmt;
64 struct v4l2_rect crop;
67 const struct ge2d_fmt *fmt;
72 struct meson_ge2d *ge2d;
74 struct ge2d_frame out;
75 struct v4l2_ctrl_handler ctrl_handler;
77 unsigned long sequence_out, sequence_cap;
86 struct v4l2_device v4l2_dev;
87 struct v4l2_m2m_dev *m2m_dev;
88 struct video_device *vfd;
97 struct ge2d_ctx *curr;
100 #define FMT(_fourcc, _alpha, _depth, _map) \
105 .hw_fmt = GE2D_FORMAT_ ## _depth ## BIT, \
106 .hw_map = GE2D_COLOR_MAP_ ## _map, \
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),
123 FMT(V4L2_PIX_FMT_RGB24, false, 24, BGR888),
124 FMT(V4L2_PIX_FMT_BGR24, false, 24, RGB888),
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),
135 #define NUM_FORMATS ARRAY_SIZE(formats)
137 static const struct ge2d_fmt *find_fmt(struct v4l2_format *f)
141 for (i = 0; i < NUM_FORMATS; i++) {
142 if (formats[i].fourcc == f->fmt.pix.pixelformat)
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
155 static struct ge2d_frame *get_frame(struct ge2d_ctx *ctx,
156 enum v4l2_buf_type type)
159 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
161 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
164 /* This should never happen, warn and return OUTPUT frame */
165 dev_warn(ctx->ge2d->dev, "%s: invalid buffer type\n", __func__);
170 static void ge2d_hw_start(struct meson_ge2d *ge2d)
172 struct ge2d_ctx *ctx = ge2d->curr;
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,
181 usleep_range(100, 200);
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);
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));
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,
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));
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));
248 /* Color, no blend, use source color */
249 reg = GE2D_ALU_DO_COLOR_OPERATION_LOGIC(LOGIC_OPERATION_COPY,
250 COLOR_FACTOR_SRC_COLOR);
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)
258 reg |= GE2D_ALU_DO_ALPHA_OPERATION_LOGIC(LOGIC_OPERATION_SET,
261 /* Keep original alpha */
262 reg |= GE2D_ALU_DO_ALPHA_OPERATION_LOGIC(LOGIC_OPERATION_COPY,
263 COLOR_FACTOR_DST_ALPHA);
265 regmap_write(ge2d->map, GE2D_ALU_OP_CTRL, reg);
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) |
275 static void device_run(void *priv)
277 struct ge2d_ctx *ctx = priv;
278 struct meson_ge2d *ge2d = ctx->ge2d;
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);
288 static irqreturn_t ge2d_isr(int irq, void *priv)
290 struct meson_ge2d *ge2d = priv;
293 regmap_read(ge2d->map, GE2D_STATUS0, &intr);
295 if (!(intr & GE2D_GE2D_BUSY)) {
296 struct vb2_v4l2_buffer *src, *dst;
297 struct ge2d_ctx *ctx = ge2d->curr;
301 src = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
302 dst = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
304 src->sequence = ctx->sequence_out++;
305 dst->sequence = ctx->sequence_cap++;
307 dst->timecode = src->timecode;
308 dst->vb2_buf.timestamp = src->vb2_buf.timestamp;
309 dst->flags = src->flags;
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);
319 static const struct v4l2_m2m_ops ge2d_m2m_ops = {
320 .device_run = device_run,
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[])
327 struct ge2d_ctx *ctx = vb2_get_drv_priv(vq);
328 struct ge2d_frame *f = get_frame(ctx, vq->type);
331 return sizes[0] < f->pix_fmt.sizeimage ? -EINVAL : 0;
333 sizes[0] = f->pix_fmt.sizeimage;
339 static int ge2d_buf_prepare(struct vb2_buffer *vb)
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);
345 vbuf->field = V4L2_FIELD_NONE;
347 vb2_set_plane_payload(vb, 0, f->pix_fmt.sizeimage);
352 static void ge2d_buf_queue(struct vb2_buffer *vb)
354 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
355 struct ge2d_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
357 v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf);
360 static int ge2d_start_streaming(struct vb2_queue *vq, unsigned int count)
362 struct ge2d_ctx *ctx = vb2_get_drv_priv(vq);
364 if (V4L2_TYPE_IS_OUTPUT(vq->type))
365 ctx->sequence_out = 0;
367 ctx->sequence_cap = 0;
372 static void ge2d_stop_streaming(struct vb2_queue *vq)
374 struct ge2d_ctx *ctx = vb2_get_drv_priv(vq);
375 struct vb2_v4l2_buffer *vbuf;
378 if (V4L2_TYPE_IS_OUTPUT(vq->type))
379 vbuf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
381 vbuf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
384 v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_ERROR);
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 .wait_prepare = vb2_ops_wait_prepare,
395 .wait_finish = vb2_ops_wait_finish,
399 queue_init(void *priv, struct vb2_queue *src_vq, struct vb2_queue *dst_vq)
401 struct ge2d_ctx *ctx = priv;
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;
414 ret = vb2_queue_init(src_vq);
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;
428 return vb2_queue_init(dst_vq);
432 vidioc_querycap(struct file *file, void *priv, struct v4l2_capability *cap)
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));
441 static int vidioc_enum_fmt(struct file *file, void *priv, struct v4l2_fmtdesc *f)
443 const struct ge2d_fmt *fmt;
445 if (f->index >= NUM_FORMATS)
448 fmt = &formats[f->index];
449 f->pixelformat = fmt->fourcc;
454 static int vidioc_g_selection(struct file *file, void *priv,
455 struct v4l2_selection *s)
457 struct ge2d_ctx *ctx = priv;
458 struct ge2d_frame *f;
459 bool use_frame = false;
461 if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
462 s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
465 f = get_frame(ctx, s->type);
468 case V4L2_SEL_TGT_COMPOSE_DEFAULT:
469 case V4L2_SEL_TGT_COMPOSE_BOUNDS:
470 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
473 case V4L2_SEL_TGT_CROP_DEFAULT:
474 case V4L2_SEL_TGT_CROP_BOUNDS:
475 if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
478 case V4L2_SEL_TGT_COMPOSE:
479 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
483 case V4L2_SEL_TGT_CROP:
484 if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
497 s->r.width = f->pix_fmt.width;
498 s->r.height = f->pix_fmt.height;
504 static int vidioc_s_selection(struct file *file, void *priv,
505 struct v4l2_selection *s)
507 struct ge2d_ctx *ctx = priv;
508 struct meson_ge2d *ge2d = ctx->ge2d;
509 struct ge2d_frame *f;
512 if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
513 s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
516 f = get_frame(ctx, s->type);
519 case V4L2_SEL_TGT_COMPOSE:
521 * COMPOSE target is only valid for capture buffer type, return
522 * error for output buffer type
524 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
527 case V4L2_SEL_TGT_CROP:
529 * CROP target is only valid for output buffer type, return
530 * error for capture buffer type
532 if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
536 * bound and default crop/compose targets are invalid targets to
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");
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");
560 static void vidioc_setup_cap_fmt(struct ge2d_ctx *ctx, struct v4l2_pix_format *f)
562 struct ge2d_frame *frm_out = get_frame(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
564 *f = frm_out->pix_fmt;
567 f->width = frm_out->pix_fmt.height;
568 f->height = frm_out->pix_fmt.width;
572 static int vidioc_try_fmt_cap(struct file *file, void *priv, struct v4l2_format *f)
574 const struct ge2d_fmt *fmt = find_fmt(f);
575 struct ge2d_ctx *ctx = priv;
576 struct v4l2_pix_format fmt_cap;
578 vidioc_setup_cap_fmt(ctx, &fmt_cap);
580 fmt_cap.pixelformat = fmt->fourcc;
582 fmt_cap.bytesperline = max(f->fmt.pix.bytesperline,
583 ALIGN((fmt_cap.width * fmt->depth) >> 3, 8));
585 fmt_cap.sizeimage = max(f->fmt.pix.sizeimage,
586 fmt_cap.height * fmt_cap.bytesperline);
588 f->fmt.pix = fmt_cap;
593 static int vidioc_s_fmt_cap(struct file *file, void *priv, struct v4l2_format *f)
595 struct ge2d_ctx *ctx = priv;
596 struct meson_ge2d *ge2d = ctx->ge2d;
597 struct vb2_queue *vq;
598 struct ge2d_frame *frm;
601 /* Adjust all values accordingly to the hardware capabilities
604 ret = vidioc_try_fmt_cap(file, priv, f);
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);
614 frm = get_frame(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
616 frm->pix_fmt = f->fmt.pix;
617 frm->fmt = find_fmt(f);
618 f->fmt.pix.pixelformat = frm->fmt->fourcc;
620 /* Reset crop settings */
623 frm->crop.width = frm->pix_fmt.width;
624 frm->crop.height = frm->pix_fmt.height;
629 static int vidioc_g_fmt(struct file *file, void *priv, struct v4l2_format *f)
631 struct ge2d_ctx *ctx = priv;
632 struct vb2_queue *vq;
633 struct ge2d_frame *frm;
635 vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
639 frm = get_frame(ctx, f->type);
641 f->fmt.pix = frm->pix_fmt;
642 f->fmt.pix.pixelformat = frm->fmt->fourcc;
647 static int vidioc_try_fmt_out(struct file *file, void *priv, struct v4l2_format *f)
649 const struct ge2d_fmt *fmt = find_fmt(f);
651 f->fmt.pix.field = V4L2_FIELD_NONE;
652 f->fmt.pix.pixelformat = fmt->fourcc;
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;
659 f->fmt.pix.bytesperline = max(f->fmt.pix.bytesperline,
660 ALIGN((f->fmt.pix.width * fmt->depth) >> 3, 8));
662 f->fmt.pix.sizeimage = max(f->fmt.pix.sizeimage,
663 f->fmt.pix.height * f->fmt.pix.bytesperline);
668 static int vidioc_s_fmt_out(struct file *file, void *priv, struct v4l2_format *f)
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;
676 /* Adjust all values accordingly to the hardware capabilities
679 ret = vidioc_try_fmt_out(file, priv, f);
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);
689 frm = get_frame(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
690 frm_cap = get_frame(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
692 frm->pix_fmt = f->fmt.pix;
693 frm->fmt = find_fmt(f);
694 f->fmt.pix.pixelformat = frm->fmt->fourcc;
696 /* Reset crop settings */
699 frm->crop.width = frm->pix_fmt.width;
700 frm->crop.height = frm->pix_fmt.height;
702 /* Propagate settings to capture */
703 vidioc_setup_cap_fmt(ctx, &frm_cap->pix_fmt);
708 static const struct v4l2_ioctl_ops ge2d_ioctl_ops = {
709 .vidioc_querycap = vidioc_querycap,
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,
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,
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,
729 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
730 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
732 .vidioc_streamon = v4l2_m2m_ioctl_streamon,
733 .vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
735 .vidioc_g_selection = vidioc_g_selection,
736 .vidioc_s_selection = vidioc_s_selection,
739 static int ge2d_s_ctrl(struct v4l2_ctrl *ctrl)
741 struct ge2d_ctx *ctx = container_of(ctrl->handler, struct ge2d_ctx,
743 struct v4l2_pix_format fmt;
744 struct vb2_queue *vq;
748 ctx->hflip = ctrl->val;
751 ctx->vflip = ctrl->val;
753 case V4L2_CID_ROTATE:
754 vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
758 if (ctrl->val == 90) {
762 } else if (ctrl->val == 180) {
766 } else if (ctrl->val == 270) {
776 vidioc_setup_cap_fmt(ctx, &fmt);
779 * If the rotation parameter changes the OUTPUT frames
780 * parameters, take them in account
782 ctx->out.pix_fmt = fmt;
790 static const struct v4l2_ctrl_ops ge2d_ctrl_ops = {
791 .s_ctrl = ge2d_s_ctrl,
794 static int ge2d_setup_ctrls(struct ge2d_ctx *ctx)
796 struct meson_ge2d *ge2d = ctx->ge2d;
798 v4l2_ctrl_handler_init(&ctx->ctrl_handler, 4);
800 v4l2_ctrl_new_std(&ctx->ctrl_handler, &ge2d_ctrl_ops,
801 V4L2_CID_HFLIP, 0, 1, 1, 0);
803 v4l2_ctrl_new_std(&ctx->ctrl_handler, &ge2d_ctrl_ops,
804 V4L2_CID_VFLIP, 0, 1, 1, 0);
806 v4l2_ctrl_new_std(&ctx->ctrl_handler, &ge2d_ctrl_ops,
807 V4L2_CID_ROTATE, 0, 270, 90, 0);
809 if (ctx->ctrl_handler.error) {
810 int err = ctx->ctrl_handler.error;
812 v4l2_err(&ge2d->v4l2_dev, "%s failed\n", __func__);
813 v4l2_ctrl_handler_free(&ctx->ctrl_handler);
820 static const struct ge2d_frame def_frame = {
822 .width = DEFAULT_WIDTH,
823 .height = DEFAULT_HEIGHT,
824 .bytesperline = DEFAULT_STRIDE,
825 .sizeimage = DEFAULT_STRIDE * DEFAULT_HEIGHT,
826 .field = V4L2_FIELD_NONE,
828 .crop.width = DEFAULT_WIDTH,
829 .crop.height = DEFAULT_HEIGHT,
833 static int ge2d_open(struct file *file)
835 struct meson_ge2d *ge2d = video_drvdata(file);
836 struct ge2d_ctx *ctx = NULL;
839 ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
844 /* Set default formats */
846 ctx->out = def_frame;
848 if (mutex_lock_interruptible(&ge2d->mutex)) {
852 ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(ge2d->m2m_dev, ctx, &queue_init);
853 if (IS_ERR(ctx->fh.m2m_ctx)) {
854 ret = PTR_ERR(ctx->fh.m2m_ctx);
855 mutex_unlock(&ge2d->mutex);
859 v4l2_fh_init(&ctx->fh, video_devdata(file));
860 file->private_data = &ctx->fh;
861 v4l2_fh_add(&ctx->fh);
863 ge2d_setup_ctrls(ctx);
865 /* Write the default values to the ctx struct */
866 v4l2_ctrl_handler_setup(&ctx->ctrl_handler);
868 ctx->fh.ctrl_handler = &ctx->ctrl_handler;
869 mutex_unlock(&ge2d->mutex);
874 static int ge2d_release(struct file *file)
876 struct ge2d_ctx *ctx =
877 container_of(file->private_data, struct ge2d_ctx, fh);
878 struct meson_ge2d *ge2d = ctx->ge2d;
880 mutex_lock(&ge2d->mutex);
882 v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
884 v4l2_ctrl_handler_free(&ctx->ctrl_handler);
885 v4l2_fh_del(&ctx->fh);
886 v4l2_fh_exit(&ctx->fh);
889 mutex_unlock(&ge2d->mutex);
894 static const struct v4l2_file_operations ge2d_fops = {
895 .owner = THIS_MODULE,
897 .release = ge2d_release,
898 .poll = v4l2_m2m_fop_poll,
899 .unlocked_ioctl = video_ioctl2,
900 .mmap = v4l2_m2m_fop_mmap,
903 static const struct video_device ge2d_videodev = {
904 .name = "meson-ge2d",
906 .ioctl_ops = &ge2d_ioctl_ops,
908 .release = video_device_release,
909 .vfl_dir = VFL_DIR_M2M,
910 .device_caps = V4L2_CAP_VIDEO_M2M | V4L2_CAP_STREAMING,
913 static const struct regmap_config meson_ge2d_regmap_conf = {
917 .max_register = GE2D_SRC2_STRIDE_CTRL,
920 static int ge2d_probe(struct platform_device *pdev)
922 struct reset_control *rst;
923 struct video_device *vfd;
924 struct meson_ge2d *ge2d;
929 if (!pdev->dev.of_node)
932 ge2d = devm_kzalloc(&pdev->dev, sizeof(*ge2d), GFP_KERNEL);
936 ge2d->dev = &pdev->dev;
937 mutex_init(&ge2d->mutex);
939 regs = devm_platform_ioremap_resource(pdev, 0);
941 return PTR_ERR(regs);
943 ge2d->map = devm_regmap_init_mmio(ge2d->dev, regs,
944 &meson_ge2d_regmap_conf);
945 if (IS_ERR(ge2d->map))
946 return PTR_ERR(ge2d->map);
948 irq = platform_get_irq(pdev, 0);
949 ret = devm_request_irq(ge2d->dev, irq, ge2d_isr, 0,
950 dev_name(ge2d->dev), ge2d);
952 dev_err(ge2d->dev, "failed to request irq\n");
956 rst = devm_reset_control_get(ge2d->dev, NULL);
958 dev_err(ge2d->dev, "failed to get core reset controller\n");
962 ge2d->clk = devm_clk_get(ge2d->dev, NULL);
963 if (IS_ERR(ge2d->clk)) {
964 dev_err(ge2d->dev, "failed to get clock\n");
965 return PTR_ERR(ge2d->clk);
968 reset_control_assert(rst);
970 reset_control_deassert(rst);
972 ret = clk_prepare_enable(ge2d->clk);
974 dev_err(ge2d->dev, "Cannot enable ge2d sclk: %d\n", ret);
978 ret = v4l2_device_register(&pdev->dev, &ge2d->v4l2_dev);
982 vfd = video_device_alloc();
984 v4l2_err(&ge2d->v4l2_dev, "Failed to allocate video device\n");
989 *vfd = ge2d_videodev;
990 vfd->lock = &ge2d->mutex;
991 vfd->v4l2_dev = &ge2d->v4l2_dev;
993 video_set_drvdata(vfd, ge2d);
996 platform_set_drvdata(pdev, ge2d);
997 ge2d->m2m_dev = v4l2_m2m_init(&ge2d_m2m_ops);
998 if (IS_ERR(ge2d->m2m_dev)) {
999 v4l2_err(&ge2d->v4l2_dev, "Failed to init mem2mem device\n");
1000 ret = PTR_ERR(ge2d->m2m_dev);
1004 ret = video_register_device(vfd, VFL_TYPE_VIDEO, -1);
1006 v4l2_err(&ge2d->v4l2_dev, "Failed to register video device\n");
1010 v4l2_info(&ge2d->v4l2_dev, "Registered %s as /dev/%s\n",
1011 vfd->name, video_device_node_name(vfd));
1016 v4l2_m2m_release(ge2d->m2m_dev);
1018 video_device_release(ge2d->vfd);
1020 v4l2_device_unregister(&ge2d->v4l2_dev);
1022 clk_disable_unprepare(ge2d->clk);
1027 static void ge2d_remove(struct platform_device *pdev)
1029 struct meson_ge2d *ge2d = platform_get_drvdata(pdev);
1031 video_unregister_device(ge2d->vfd);
1032 v4l2_m2m_release(ge2d->m2m_dev);
1033 v4l2_device_unregister(&ge2d->v4l2_dev);
1034 clk_disable_unprepare(ge2d->clk);
1037 static const struct of_device_id meson_ge2d_match[] = {
1039 .compatible = "amlogic,axg-ge2d",
1044 MODULE_DEVICE_TABLE(of, meson_ge2d_match);
1046 static struct platform_driver ge2d_drv = {
1047 .probe = ge2d_probe,
1048 .remove_new = ge2d_remove,
1050 .name = "meson-ge2d",
1051 .of_match_table = meson_ge2d_match,
1055 module_platform_driver(ge2d_drv);
1057 MODULE_AUTHOR("Neil Armstrong <narmstrong@baylibre.com>");
1058 MODULE_DESCRIPTION("Amlogic 2D Graphic Acceleration Unit");
1059 MODULE_LICENSE("GPL");