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ge2d.c
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linux-6.19.14/drivers/media/platform/amlogic/meson-ge2d/ge2d.c
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 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 /* 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 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 /* Control values */ 80 u32 hflip; 81 u32 vflip; 82 u32 xy_swap; 83}; 84 85static inline struct ge2d_ctx *file_to_ge2d_ctx(struct file *filp) 86{ 87 return container_of(file_to_v4l2_fh(filp), struct ge2d_ctx, fh); 88} 89 90struct meson_ge2d { 91 struct v4l2_device v4l2_dev; 92 struct v4l2_m2m_dev *m2m_dev; 93 struct video_device *vfd; 94 95 struct device *dev; 96 struct regmap *map; 97 struct clk *clk; 98 99 /* vb2 queue lock */ 100 struct mutex mutex; 101 102 struct ge2d_ctx *curr; 103}; 104 105#define FMT(_fourcc, _alpha, _depth, _map) \ 106{ \ 107 .fourcc = _fourcc, \ 108 .alpha = (_alpha), \ 109 .depth = (_depth), \ 110 .hw_fmt = GE2D_FORMAT_ ## _depth ## BIT, \ 111 .hw_map = GE2D_COLOR_MAP_ ## _map, \ 112} 113 114/* TOFIX Handle the YUV input formats */ 115static const struct ge2d_fmt formats[] = { 116 /* FOURCC Alpha HW FMT HW MAP */ 117 FMT(V4L2_PIX_FMT_XRGB32, false, 32, BGRA8888), 118 FMT(V4L2_PIX_FMT_RGB32, true, 32, BGRA8888), 119 FMT(V4L2_PIX_FMT_ARGB32, true, 32, BGRA8888), 120 FMT(V4L2_PIX_FMT_RGBX32, false, 32, ABGR8888), 121 FMT(V4L2_PIX_FMT_RGBA32, true, 32, ABGR8888), 122 FMT(V4L2_PIX_FMT_BGRX32, false, 32, RGBA8888), 123 FMT(V4L2_PIX_FMT_BGRA32, true, 32, RGBA8888), 124 FMT(V4L2_PIX_FMT_BGR32, true, 32, ARGB8888), 125 FMT(V4L2_PIX_FMT_ABGR32, true, 32, ARGB8888), 126 FMT(V4L2_PIX_FMT_XBGR32, false, 32, ARGB8888), 127 128 FMT(V4L2_PIX_FMT_RGB24, false, 24, BGR888), 129 FMT(V4L2_PIX_FMT_BGR24, false, 24, RGB888), 130 131 FMT(V4L2_PIX_FMT_XRGB555X, false, 16, ARGB1555), 132 FMT(V4L2_PIX_FMT_ARGB555X, true, 16, ARGB1555), 133 FMT(V4L2_PIX_FMT_RGB565, false, 16, RGB565), 134 FMT(V4L2_PIX_FMT_RGBX444, false, 16, RGBA4444), 135 FMT(V4L2_PIX_FMT_RGBA444, true, 16, RGBA4444), 136 FMT(V4L2_PIX_FMT_XRGB444, false, 16, ARGB4444), 137 FMT(V4L2_PIX_FMT_ARGB444, true, 16, ARGB4444), 138}; 139 140#define NUM_FORMATS ARRAY_SIZE(formats) 141 142static const struct ge2d_fmt *find_fmt(struct v4l2_format *f) 143{ 144 unsigned int i; 145 146 for (i = 0; i < NUM_FORMATS; i++) { 147 if (formats[i].fourcc == f->fmt.pix.pixelformat) 148 return &formats[i]; 149 } 150 151 /* 152 * TRY_FMT/S_FMT should never return an error when the requested format 153 * is not supported. Drivers should always return a valid format, 154 * preferably a format that is as widely supported by applications as 155 * possible. 156 */ 157 return &formats[0]; 158} 159 160static struct ge2d_frame *get_frame(struct ge2d_ctx *ctx, 161 enum v4l2_buf_type type) 162{ 163 switch (type) { 164 case V4L2_BUF_TYPE_VIDEO_OUTPUT: 165 return &ctx->in; 166 case V4L2_BUF_TYPE_VIDEO_CAPTURE: 167 return &ctx->out; 168 default: 169 /* This should never happen, warn and return OUTPUT frame */ 170 dev_warn(ctx->ge2d->dev, "%s: invalid buffer type\n", __func__); 171 return &ctx->in; 172 } 173} 174 175static void ge2d_hw_start(struct meson_ge2d *ge2d) 176{ 177 struct ge2d_ctx *ctx = ge2d->curr; 178 u32 reg; 179 180 /* Reset */ 181 regmap_update_bits(ge2d->map, GE2D_GEN_CTRL1, 182 GE2D_SOFT_RST, GE2D_SOFT_RST); 183 regmap_update_bits(ge2d->map, GE2D_GEN_CTRL1, 184 GE2D_SOFT_RST, 0); 185 186 usleep_range(100, 200); 187 188 /* Implement CANVAS for non-AXG */ 189 regmap_write(ge2d->map, GE2D_SRC1_BADDR_CTRL, 190 (vb2_dma_contig_plane_dma_addr(&ctx->in.buf->vb2_buf, 0) + 7) >> 3); 191 regmap_write(ge2d->map, GE2D_SRC1_STRIDE_CTRL, 192 (ctx->in.pix_fmt.bytesperline + 7) >> 3); 193 regmap_write(ge2d->map, GE2D_SRC2_BADDR_CTRL, 194 (vb2_dma_contig_plane_dma_addr(&ctx->out.buf->vb2_buf, 0) + 7) >> 3); 195 regmap_write(ge2d->map, GE2D_SRC2_STRIDE_CTRL, 196 (ctx->out.pix_fmt.bytesperline + 7) >> 3); 197 regmap_write(ge2d->map, GE2D_DST1_BADDR_CTRL, 198 (vb2_dma_contig_plane_dma_addr(&ctx->out.buf->vb2_buf, 0) + 7) >> 3); 199 regmap_write(ge2d->map, GE2D_DST1_STRIDE_CTRL, 200 (ctx->out.pix_fmt.bytesperline + 7) >> 3); 201 202 regmap_write(ge2d->map, GE2D_GEN_CTRL0, 0); 203 regmap_write(ge2d->map, GE2D_GEN_CTRL1, 204 FIELD_PREP(GE2D_INTERRUPT_CTRL, 2) | 205 FIELD_PREP(GE2D_SRC2_BURST_SIZE_CTRL, 3) | 206 FIELD_PREP(GE2D_SRC1_BURST_SIZE_CTRL, 0x3f)); 207 208 regmap_write(ge2d->map, GE2D_GEN_CTRL2, 209 GE2D_SRC1_LITTLE_ENDIAN | 210 GE2D_SRC2_LITTLE_ENDIAN | 211 GE2D_DST_LITTLE_ENDIAN | 212 FIELD_PREP(GE2D_DST1_COLOR_MAP, ctx->out.fmt->hw_map) | 213 FIELD_PREP(GE2D_DST1_FORMAT, ctx->out.fmt->hw_fmt) | 214 FIELD_PREP(GE2D_SRC2_COLOR_MAP, ctx->out.fmt->hw_map) | 215 FIELD_PREP(GE2D_SRC2_FORMAT, ctx->out.fmt->hw_fmt) | 216 FIELD_PREP(GE2D_SRC1_COLOR_MAP, ctx->in.fmt->hw_map) | 217 FIELD_PREP(GE2D_SRC1_FORMAT, ctx->in.fmt->hw_fmt)); 218 regmap_write(ge2d->map, GE2D_GEN_CTRL3, 219 GE2D_DST1_ENABLE); 220 221 regmap_write(ge2d->map, GE2D_SRC1_CLIPY_START_END, 222 FIELD_PREP(GE2D_START, ctx->in.crop.top) | 223 FIELD_PREP(GE2D_END, ctx->in.crop.top + ctx->in.crop.height - 1)); 224 regmap_write(ge2d->map, GE2D_SRC1_CLIPX_START_END, 225 FIELD_PREP(GE2D_START, ctx->in.crop.left) | 226 FIELD_PREP(GE2D_END, ctx->in.crop.left + ctx->in.crop.width - 1)); 227 regmap_write(ge2d->map, GE2D_SRC2_CLIPY_START_END, 228 FIELD_PREP(GE2D_START, ctx->out.crop.top) | 229 FIELD_PREP(GE2D_END, ctx->out.crop.top + ctx->out.crop.height - 1)); 230 regmap_write(ge2d->map, GE2D_SRC2_CLIPX_START_END, 231 FIELD_PREP(GE2D_START, ctx->out.crop.left) | 232 FIELD_PREP(GE2D_END, ctx->out.crop.left + ctx->out.crop.width - 1)); 233 regmap_write(ge2d->map, GE2D_DST_CLIPY_START_END, 234 FIELD_PREP(GE2D_START, ctx->out.crop.top) | 235 FIELD_PREP(GE2D_END, ctx->out.crop.top + ctx->out.crop.height - 1)); 236 regmap_write(ge2d->map, GE2D_DST_CLIPX_START_END, 237 FIELD_PREP(GE2D_START, ctx->out.crop.left) | 238 FIELD_PREP(GE2D_END, ctx->out.crop.left + ctx->out.crop.width - 1)); 239 240 regmap_write(ge2d->map, GE2D_SRC1_Y_START_END, 241 FIELD_PREP(GE2D_END, ctx->in.pix_fmt.height - 1)); 242 regmap_write(ge2d->map, GE2D_SRC1_X_START_END, 243 FIELD_PREP(GE2D_END, ctx->in.pix_fmt.width - 1)); 244 regmap_write(ge2d->map, GE2D_SRC2_Y_START_END, 245 FIELD_PREP(GE2D_END, ctx->out.pix_fmt.height - 1)); 246 regmap_write(ge2d->map, GE2D_SRC2_X_START_END, 247 FIELD_PREP(GE2D_END, ctx->out.pix_fmt.width - 1)); 248 regmap_write(ge2d->map, GE2D_DST_Y_START_END, 249 FIELD_PREP(GE2D_END, ctx->out.pix_fmt.height - 1)); 250 regmap_write(ge2d->map, GE2D_DST_X_START_END, 251 FIELD_PREP(GE2D_END, ctx->out.pix_fmt.width - 1)); 252 253 /* Color, no blend, use source color */ 254 reg = GE2D_ALU_DO_COLOR_OPERATION_LOGIC(LOGIC_OPERATION_COPY, 255 COLOR_FACTOR_SRC_COLOR); 256 257 if (ctx->in.fmt->alpha && ctx->out.fmt->alpha) 258 /* Take source alpha */ 259 reg |= GE2D_ALU_DO_ALPHA_OPERATION_LOGIC(LOGIC_OPERATION_COPY, 260 COLOR_FACTOR_SRC_ALPHA); 261 else if (!ctx->out.fmt->alpha) 262 /* Set alpha to 0 */ 263 reg |= GE2D_ALU_DO_ALPHA_OPERATION_LOGIC(LOGIC_OPERATION_SET, 264 COLOR_FACTOR_ZERO); 265 else 266 /* Keep original alpha */ 267 reg |= GE2D_ALU_DO_ALPHA_OPERATION_LOGIC(LOGIC_OPERATION_COPY, 268 COLOR_FACTOR_DST_ALPHA); 269 270 regmap_write(ge2d->map, GE2D_ALU_OP_CTRL, reg); 271 272 /* Start */ 273 regmap_write(ge2d->map, GE2D_CMD_CTRL, 274 (ctx->xy_swap ? GE2D_DST_XY_SWAP : 0) | 275 (ctx->hflip ? GE2D_SRC1_Y_REV : 0) | 276 (ctx->vflip ? GE2D_SRC1_X_REV : 0) | 277 GE2D_CBUS_CMD_WR); 278} 279 280static void device_run(void *priv) 281{ 282 struct ge2d_ctx *ctx = priv; 283 struct meson_ge2d *ge2d = ctx->ge2d; 284 285 ge2d->curr = ctx; 286 287 ctx->in.buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx); 288 ctx->out.buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx); 289 290 ge2d_hw_start(ge2d); 291} 292 293static irqreturn_t ge2d_isr(int irq, void *priv) 294{ 295 struct meson_ge2d *ge2d = priv; 296 u32 intr; 297 298 regmap_read(ge2d->map, GE2D_STATUS0, &intr); 299 300 if (!(intr & GE2D_GE2D_BUSY)) { 301 struct vb2_v4l2_buffer *src, *dst; 302 struct ge2d_ctx *ctx = ge2d->curr; 303 304 ge2d->curr = NULL; 305 306 src = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx); 307 dst = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx); 308 309 src->sequence = ctx->sequence_out++; 310 dst->sequence = ctx->sequence_cap++; 311 312 dst->timecode = src->timecode; 313 dst->vb2_buf.timestamp = src->vb2_buf.timestamp; 314 dst->flags = src->flags; 315 316 v4l2_m2m_buf_done(src, VB2_BUF_STATE_DONE); 317 v4l2_m2m_buf_done(dst, VB2_BUF_STATE_DONE); 318 v4l2_m2m_job_finish(ge2d->m2m_dev, ctx->fh.m2m_ctx); 319 } 320 321 return IRQ_HANDLED; 322} 323 324static const struct v4l2_m2m_ops ge2d_m2m_ops = { 325 .device_run = device_run, 326}; 327 328static int ge2d_queue_setup(struct vb2_queue *vq, 329 unsigned int *nbuffers, unsigned int *nplanes, 330 unsigned int sizes[], struct device *alloc_devs[]) 331{ 332 struct ge2d_ctx *ctx = vb2_get_drv_priv(vq); 333 struct ge2d_frame *f = get_frame(ctx, vq->type); 334 335 if (*nplanes) 336 return sizes[0] < f->pix_fmt.sizeimage ? -EINVAL : 0; 337 338 sizes[0] = f->pix_fmt.sizeimage; 339 *nplanes = 1; 340 341 return 0; 342} 343 344static int ge2d_buf_prepare(struct vb2_buffer *vb) 345{ 346 struct ge2d_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); 347 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); 348 struct ge2d_frame *f = get_frame(ctx, vb->vb2_queue->type); 349 350 vbuf->field = V4L2_FIELD_NONE; 351 352 vb2_set_plane_payload(vb, 0, f->pix_fmt.sizeimage); 353 354 return 0; 355} 356 357static void ge2d_buf_queue(struct vb2_buffer *vb) 358{ 359 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); 360 struct ge2d_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); 361 362 v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf); 363} 364 365static int ge2d_start_streaming(struct vb2_queue *vq, unsigned int count) 366{ 367 struct ge2d_ctx *ctx = vb2_get_drv_priv(vq); 368 369 if (V4L2_TYPE_IS_OUTPUT(vq->type)) 370 ctx->sequence_out = 0; 371 else 372 ctx->sequence_cap = 0; 373 374 return 0; 375} 376 377static void ge2d_stop_streaming(struct vb2_queue *vq) 378{ 379 struct ge2d_ctx *ctx = vb2_get_drv_priv(vq); 380 struct vb2_v4l2_buffer *vbuf; 381 382 for (;;) { 383 if (V4L2_TYPE_IS_OUTPUT(vq->type)) 384 vbuf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx); 385 else 386 vbuf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx); 387 if (!vbuf) 388 break; 389 v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_ERROR); 390 } 391} 392 393static const struct vb2_ops ge2d_qops = { 394 .queue_setup = ge2d_queue_setup, 395 .buf_prepare = ge2d_buf_prepare, 396 .buf_queue = ge2d_buf_queue, 397 .start_streaming = ge2d_start_streaming, 398 .stop_streaming = ge2d_stop_streaming, 399}; 400 401static int 402queue_init(void *priv, struct vb2_queue *src_vq, struct vb2_queue *dst_vq) 403{ 404 struct ge2d_ctx *ctx = priv; 405 int ret; 406 407 src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT; 408 src_vq->io_modes = VB2_MMAP | VB2_DMABUF; 409 src_vq->drv_priv = ctx; 410 src_vq->ops = &ge2d_qops; 411 src_vq->mem_ops = &vb2_dma_contig_memops; 412 src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer); 413 src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY; 414 src_vq->lock = &ctx->ge2d->mutex; 415 src_vq->dev = ctx->ge2d->v4l2_dev.dev; 416 417 ret = vb2_queue_init(src_vq); 418 if (ret) 419 return ret; 420 421 dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 422 dst_vq->io_modes = VB2_MMAP | VB2_DMABUF; 423 dst_vq->drv_priv = ctx; 424 dst_vq->ops = &ge2d_qops; 425 dst_vq->mem_ops = &vb2_dma_contig_memops; 426 dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer); 427 dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY; 428 dst_vq->lock = &ctx->ge2d->mutex; 429 dst_vq->dev = ctx->ge2d->v4l2_dev.dev; 430 431 return vb2_queue_init(dst_vq); 432} 433 434static int 435vidioc_querycap(struct file *file, void *priv, struct v4l2_capability *cap) 436{ 437 strscpy(cap->driver, GE2D_NAME, sizeof(cap->driver)); 438 strscpy(cap->card, GE2D_NAME, sizeof(cap->card)); 439 strscpy(cap->bus_info, "platform:" GE2D_NAME, sizeof(cap->bus_info)); 440 441 return 0; 442} 443 444static int vidioc_enum_fmt(struct file *file, void *priv, struct v4l2_fmtdesc *f) 445{ 446 const struct ge2d_fmt *fmt; 447 448 if (f->index >= NUM_FORMATS) 449 return -EINVAL; 450 451 fmt = &formats[f->index]; 452 f->pixelformat = fmt->fourcc; 453 454 return 0; 455} 456 457static int vidioc_g_selection(struct file *file, void *priv, 458 struct v4l2_selection *s) 459{ 460 struct ge2d_ctx *ctx = file_to_ge2d_ctx(file); 461 struct ge2d_frame *f; 462 bool use_frame = false; 463 464 if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT && 465 s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 466 return -EINVAL; 467 468 f = get_frame(ctx, s->type); 469 470 switch (s->target) { 471 case V4L2_SEL_TGT_COMPOSE_DEFAULT: 472 case V4L2_SEL_TGT_COMPOSE_BOUNDS: 473 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 474 return -EINVAL; 475 break; 476 case V4L2_SEL_TGT_CROP_DEFAULT: 477 case V4L2_SEL_TGT_CROP_BOUNDS: 478 if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) 479 return -EINVAL; 480 break; 481 case V4L2_SEL_TGT_COMPOSE: 482 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 483 return -EINVAL; 484 use_frame = true; 485 break; 486 case V4L2_SEL_TGT_CROP: 487 if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) 488 return -EINVAL; 489 use_frame = true; 490 break; 491 default: 492 return -EINVAL; 493 } 494 495 if (use_frame) { 496 s->r = f->crop; 497 } else { 498 s->r.left = 0; 499 s->r.top = 0; 500 s->r.width = f->pix_fmt.width; 501 s->r.height = f->pix_fmt.height; 502 } 503 504 return 0; 505} 506 507static int vidioc_s_selection(struct file *file, void *priv, 508 struct v4l2_selection *s) 509{ 510 struct ge2d_ctx *ctx = file_to_ge2d_ctx(file); 511 struct meson_ge2d *ge2d = ctx->ge2d; 512 struct ge2d_frame *f; 513 int ret = 0; 514 515 if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT && 516 s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 517 return -EINVAL; 518 519 f = get_frame(ctx, s->type); 520 521 switch (s->target) { 522 case V4L2_SEL_TGT_COMPOSE: 523 /* 524 * COMPOSE target is only valid for capture buffer type, return 525 * error for output buffer type 526 */ 527 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 528 return -EINVAL; 529 break; 530 case V4L2_SEL_TGT_CROP: 531 /* 532 * CROP target is only valid for output buffer type, return 533 * error for capture buffer type 534 */ 535 if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) 536 return -EINVAL; 537 break; 538 /* 539 * bound and default crop/compose targets are invalid targets to 540 * try/set 541 */ 542 default: 543 return -EINVAL; 544 } 545 546 if (s->r.top < 0 || s->r.left < 0) { 547 v4l2_err(&ge2d->v4l2_dev, 548 "doesn't support negative values for top & left.\n"); 549 return -EINVAL; 550 } 551 552 if (s->r.left + s->r.width > f->pix_fmt.width || 553 s->r.top + s->r.height > f->pix_fmt.height) { 554 v4l2_err(&ge2d->v4l2_dev, "unsupported rectangle value.\n"); 555 return -EINVAL; 556 } 557 558 f->crop = s->r; 559 560 return ret; 561} 562 563static void vidioc_setup_cap_fmt(struct ge2d_ctx *ctx, struct v4l2_pix_format *f) 564{ 565 struct ge2d_frame *frm_out = get_frame(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT); 566 567 *f = frm_out->pix_fmt; 568 569 if (ctx->xy_swap) { 570 f->width = frm_out->pix_fmt.height; 571 f->height = frm_out->pix_fmt.width; 572 } 573} 574 575static int vidioc_try_fmt_cap(struct file *file, void *priv, struct v4l2_format *f) 576{ 577 struct ge2d_ctx *ctx = file_to_ge2d_ctx(file); 578 const struct ge2d_fmt *fmt = find_fmt(f); 579 struct v4l2_pix_format fmt_cap; 580 581 vidioc_setup_cap_fmt(ctx, &fmt_cap); 582 583 fmt_cap.pixelformat = fmt->fourcc; 584 585 fmt_cap.bytesperline = max(f->fmt.pix.bytesperline, 586 ALIGN((fmt_cap.width * fmt->depth) >> 3, 8)); 587 588 fmt_cap.sizeimage = max(f->fmt.pix.sizeimage, 589 fmt_cap.height * fmt_cap.bytesperline); 590 591 f->fmt.pix = fmt_cap; 592 593 return 0; 594} 595 596static int vidioc_s_fmt_cap(struct file *file, void *priv, struct v4l2_format *f) 597{ 598 struct ge2d_ctx *ctx = file_to_ge2d_ctx(file); 599 struct meson_ge2d *ge2d = ctx->ge2d; 600 struct vb2_queue *vq; 601 struct ge2d_frame *frm; 602 int ret = 0; 603 604 /* Adjust all values accordingly to the hardware capabilities 605 * and chosen format. 606 */ 607 ret = vidioc_try_fmt_cap(file, priv, f); 608 if (ret) 609 return ret; 610 611 vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type); 612 if (vb2_is_busy(vq)) { 613 v4l2_err(&ge2d->v4l2_dev, "queue (%d) bust\n", f->type); 614 return -EBUSY; 615 } 616 617 frm = get_frame(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE); 618 619 frm->pix_fmt = f->fmt.pix; 620 frm->fmt = find_fmt(f); 621 f->fmt.pix.pixelformat = frm->fmt->fourcc; 622 623 /* Reset crop settings */ 624 frm->crop.left = 0; 625 frm->crop.top = 0; 626 frm->crop.width = frm->pix_fmt.width; 627 frm->crop.height = frm->pix_fmt.height; 628 629 return 0; 630} 631 632static int vidioc_g_fmt(struct file *file, void *priv, struct v4l2_format *f) 633{ 634 struct ge2d_ctx *ctx = file_to_ge2d_ctx(file); 635 struct ge2d_frame *frm; 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 645static 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 666static int vidioc_s_fmt_out(struct file *file, void *priv, struct v4l2_format *f) 667{ 668 struct ge2d_ctx *ctx = file_to_ge2d_ctx(file); 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 706static 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 737static 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 788static const struct v4l2_ctrl_ops ge2d_ctrl_ops = { 789 .s_ctrl = ge2d_s_ctrl, 790}; 791 792static 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 818static 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 831static 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 v4l2_fh_add(&ctx->fh, file); 859 860 ge2d_setup_ctrls(ctx); 861 862 /* Write the default values to the ctx struct */ 863 v4l2_ctrl_handler_setup(&ctx->ctrl_handler); 864 865 ctx->fh.ctrl_handler = &ctx->ctrl_handler; 866 mutex_unlock(&ge2d->mutex); 867 868 return 0; 869} 870 871static int ge2d_release(struct file *file) 872{ 873 struct ge2d_ctx *ctx = file_to_ge2d_ctx(file); 874 struct meson_ge2d *ge2d = ctx->ge2d; 875 876 mutex_lock(&ge2d->mutex); 877 878 v4l2_m2m_ctx_release(ctx->fh.m2m_ctx); 879 880 v4l2_ctrl_handler_free(&ctx->ctrl_handler); 881 v4l2_fh_del(&ctx->fh, file); 882 v4l2_fh_exit(&ctx->fh); 883 kfree(ctx); 884 885 mutex_unlock(&ge2d->mutex); 886 887 return 0; 888} 889 890static const struct v4l2_file_operations ge2d_fops = { 891 .owner = THIS_MODULE, 892 .open = ge2d_open, 893 .release = ge2d_release, 894 .poll = v4l2_m2m_fop_poll, 895 .unlocked_ioctl = video_ioctl2, 896 .mmap = v4l2_m2m_fop_mmap, 897}; 898 899static const struct video_device ge2d_videodev = { 900 .name = "meson-ge2d", 901 .fops = &ge2d_fops, 902 .ioctl_ops = &ge2d_ioctl_ops, 903 .minor = -1, 904 .release = video_device_release, 905 .vfl_dir = VFL_DIR_M2M, 906 .device_caps = V4L2_CAP_VIDEO_M2M | V4L2_CAP_STREAMING, 907}; 908 909static const struct regmap_config meson_ge2d_regmap_conf = { 910 .reg_bits = 8, 911 .val_bits = 32, 912 .reg_stride = 4, 913 .max_register = GE2D_SRC2_STRIDE_CTRL, 914}; 915 916static int ge2d_probe(struct platform_device *pdev) 917{ 918 struct reset_control *rst; 919 struct video_device *vfd; 920 struct meson_ge2d *ge2d; 921 void __iomem *regs; 922 int ret = 0; 923 int irq; 924 925 if (!pdev->dev.of_node) 926 return -ENODEV; 927 928 ge2d = devm_kzalloc(&pdev->dev, sizeof(*ge2d), GFP_KERNEL); 929 if (!ge2d) 930 return -ENOMEM; 931 932 ge2d->dev = &pdev->dev; 933 mutex_init(&ge2d->mutex); 934 935 regs = devm_platform_ioremap_resource(pdev, 0); 936 if (IS_ERR(regs)) 937 return PTR_ERR(regs); 938 939 ge2d->map = devm_regmap_init_mmio(ge2d->dev, regs, 940 &meson_ge2d_regmap_conf); 941 if (IS_ERR(ge2d->map)) 942 return PTR_ERR(ge2d->map); 943 944 irq = platform_get_irq(pdev, 0); 945 ret = devm_request_irq(ge2d->dev, irq, ge2d_isr, 0, 946 dev_name(ge2d->dev), ge2d); 947 if (ret < 0) { 948 dev_err(ge2d->dev, "failed to request irq\n"); 949 return ret; 950 } 951 952 rst = devm_reset_control_get(ge2d->dev, NULL); 953 if (IS_ERR(rst)) { 954 dev_err(ge2d->dev, "failed to get core reset controller\n"); 955 return PTR_ERR(rst); 956 } 957 958 ge2d->clk = devm_clk_get(ge2d->dev, NULL); 959 if (IS_ERR(ge2d->clk)) { 960 dev_err(ge2d->dev, "failed to get clock\n"); 961 return PTR_ERR(ge2d->clk); 962 } 963 964 reset_control_assert(rst); 965 udelay(1); 966 reset_control_deassert(rst); 967 968 ret = clk_prepare_enable(ge2d->clk); 969 if (ret) { 970 dev_err(ge2d->dev, "Cannot enable ge2d sclk: %d\n", ret); 971 return ret; 972 } 973 974 ret = v4l2_device_register(&pdev->dev, &ge2d->v4l2_dev); 975 if (ret) 976 goto disable_clks; 977 978 vfd = video_device_alloc(); 979 if (!vfd) { 980 v4l2_err(&ge2d->v4l2_dev, "Failed to allocate video device\n"); 981 ret = -ENOMEM; 982 goto unreg_v4l2_dev; 983 } 984 985 *vfd = ge2d_videodev; 986 vfd->lock = &ge2d->mutex; 987 vfd->v4l2_dev = &ge2d->v4l2_dev; 988 989 video_set_drvdata(vfd, ge2d); 990 ge2d->vfd = vfd; 991 992 platform_set_drvdata(pdev, ge2d); 993 ge2d->m2m_dev = v4l2_m2m_init(&ge2d_m2m_ops); 994 if (IS_ERR(ge2d->m2m_dev)) { 995 v4l2_err(&ge2d->v4l2_dev, "Failed to init mem2mem device\n"); 996 ret = PTR_ERR(ge2d->m2m_dev); 997 goto rel_vdev; 998 } 999 1000 ret = video_register_device(vfd, VFL_TYPE_VIDEO, -1); 1001 if (ret) { 1002 v4l2_err(&ge2d->v4l2_dev, "Failed to register video device\n"); 1003 goto rel_m2m; 1004 } 1005 1006 v4l2_info(&ge2d->v4l2_dev, "Registered %s as /dev/%s\n", 1007 vfd->name, video_device_node_name(vfd)); 1008 1009 return 0; 1010 1011rel_m2m: 1012 v4l2_m2m_release(ge2d->m2m_dev); 1013rel_vdev: 1014 video_device_release(ge2d->vfd); 1015unreg_v4l2_dev: 1016 v4l2_device_unregister(&ge2d->v4l2_dev); 1017disable_clks: 1018 clk_disable_unprepare(ge2d->clk); 1019 1020 return ret; 1021} 1022 1023static void ge2d_remove(struct platform_device *pdev) 1024{ 1025 struct meson_ge2d *ge2d = platform_get_drvdata(pdev); 1026 1027 video_unregister_device(ge2d->vfd); 1028 v4l2_m2m_release(ge2d->m2m_dev); 1029 v4l2_device_unregister(&ge2d->v4l2_dev); 1030 clk_disable_unprepare(ge2d->clk); 1031} 1032 1033static const struct of_device_id meson_ge2d_match[] = { 1034 { 1035 .compatible = "amlogic,axg-ge2d", 1036 }, 1037 {}, 1038}; 1039 1040MODULE_DEVICE_TABLE(of, meson_ge2d_match); 1041 1042static struct platform_driver ge2d_drv = { 1043 .probe = ge2d_probe, 1044 .remove = ge2d_remove, 1045 .driver = { 1046 .name = "meson-ge2d", 1047 .of_match_table = meson_ge2d_match, 1048 }, 1049}; 1050 1051module_platform_driver(ge2d_drv); 1052 1053MODULE_AUTHOR("Neil Armstrong <narmstrong@baylibre.com>"); 1054MODULE_DESCRIPTION("Amlogic 2D Graphic Acceleration Unit"); 1055MODULE_LICENSE("GPL");
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