2 * Copyright (C) 2013 Samsung Electronics Co.Ltd
4 * Inki Dae <inki.dae@samsung.com>
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; either version 2 of the License, or (at your
9 * option) any later version.
23 #include <linux/stddef.h>
28 #include "exynos_drm.h"
29 #include "fimg2d_reg.h"
32 #define SET_BF(val, sc, si, scsa, scda, dc, di, dcsa, dcda) \
33 val.data.src_coeff = sc; \
34 val.data.inv_src_color_coeff = si; \
35 val.data.src_coeff_src_a = scsa; \
36 val.data.src_coeff_dst_a = scda; \
37 val.data.dst_coeff = dc; \
38 val.data.inv_dst_color_coeff = di; \
39 val.data.dst_coeff_src_a = dcsa; \
40 val.data.dst_coeff_dst_a = dcda;
42 #define MIN(a, b) ((a) < (b) ? (a) : (b))
44 static unsigned int g2d_get_scaling(unsigned int src, unsigned int dst)
47 * The G2D hw scaling factor is a normalized inverse of the scaling factor.
48 * For example: When source width is 100 and destination width is 200
49 * (scaling of 2x), then the hw factor is NC * 100 / 200.
50 * The normalization factor (NC) is 2^16 = 0x10000.
53 return ((src << 16) / dst);
56 static unsigned int g2d_get_blend_op(enum e_g2d_op op)
58 union g2d_blend_func_val val;
64 case G2D_OP_DISJOINT_CLEAR:
65 case G2D_OP_CONJOINT_CLEAR:
66 SET_BF(val, G2D_COEFF_MODE_ZERO, 0, 0, 0, G2D_COEFF_MODE_ZERO,
70 case G2D_OP_DISJOINT_SRC:
71 case G2D_OP_CONJOINT_SRC:
72 SET_BF(val, G2D_COEFF_MODE_ONE, 0, 0, 0, G2D_COEFF_MODE_ZERO,
76 case G2D_OP_DISJOINT_DST:
77 case G2D_OP_CONJOINT_DST:
78 SET_BF(val, G2D_COEFF_MODE_ZERO, 0, 0, 0, G2D_COEFF_MODE_ONE,
82 SET_BF(val, G2D_COEFF_MODE_ONE, 0, 0, 0,
83 G2D_COEFF_MODE_SRC_ALPHA, 1, 0, 0);
86 fprintf(stderr, "Not support operation(%d).\n", op);
87 SET_BF(val, G2D_COEFF_MODE_ONE, 0, 0, 0, G2D_COEFF_MODE_ZERO,
96 * g2d_add_cmd - set given command and value to user side command buffer.
98 * @ctx: a pointer to g2d_context structure.
100 * @value: value data.
102 static int g2d_add_cmd(struct g2d_context *ctx, unsigned long cmd,
105 switch (cmd & ~(G2D_BUF_USERPTR)) {
106 case SRC_BASE_ADDR_REG:
107 case SRC_PLANE2_BASE_ADDR_REG:
108 case DST_BASE_ADDR_REG:
109 case DST_PLANE2_BASE_ADDR_REG:
110 case PAT_BASE_ADDR_REG:
111 case MASK_BASE_ADDR_REG:
112 if (ctx->cmd_buf_nr >= G2D_MAX_GEM_CMD_NR) {
113 fprintf(stderr, "Overflow cmd_gem size.\n");
117 ctx->cmd_buf[ctx->cmd_buf_nr].offset = cmd;
118 ctx->cmd_buf[ctx->cmd_buf_nr].data = value;
122 if (ctx->cmd_nr >= G2D_MAX_CMD_NR) {
123 fprintf(stderr, "Overflow cmd size.\n");
127 ctx->cmd[ctx->cmd_nr].offset = cmd;
128 ctx->cmd[ctx->cmd_nr].data = value;
137 * g2d_reset - reset fimg2d hardware.
139 * @ctx: a pointer to g2d_context structure.
142 static void g2d_reset(struct g2d_context *ctx)
147 g2d_add_cmd(ctx, SOFT_RESET_REG, 0x01);
151 * g2d_flush - summit all commands and values in user side command buffer
152 * to command queue aware of fimg2d dma.
154 * @ctx: a pointer to g2d_context structure.
156 * This function should be called after all commands and values to user
157 * side command buffer is set to summit that buffer to kernel side driver.
159 static int g2d_flush(struct g2d_context *ctx)
162 struct drm_exynos_g2d_set_cmdlist cmdlist;
164 if (ctx->cmd_nr == 0 && ctx->cmd_buf_nr == 0)
167 if (ctx->cmdlist_nr >= G2D_MAX_CMD_LIST_NR) {
168 fprintf(stderr, "Overflow cmdlist.\n");
172 memset(&cmdlist, 0, sizeof(struct drm_exynos_g2d_set_cmdlist));
174 cmdlist.cmd = (uint64_t)(uintptr_t)&ctx->cmd[0];
175 cmdlist.cmd_buf = (uint64_t)(uintptr_t)&ctx->cmd_buf[0];
176 cmdlist.cmd_nr = ctx->cmd_nr;
177 cmdlist.cmd_buf_nr = ctx->cmd_buf_nr;
178 cmdlist.event_type = G2D_EVENT_NOT;
179 cmdlist.user_data = 0;
184 ret = drmIoctl(ctx->fd, DRM_IOCTL_EXYNOS_G2D_SET_CMDLIST, &cmdlist);
186 fprintf(stderr, "failed to set cmdlist.\n");
196 * g2d_init - create a new g2d context and get hardware version.
198 * fd: a file descriptor to drm device driver opened.
200 drm_public struct g2d_context *g2d_init(int fd)
202 struct drm_exynos_g2d_get_ver ver;
203 struct g2d_context *ctx;
206 ctx = calloc(1, sizeof(*ctx));
208 fprintf(stderr, "failed to allocate context.\n");
214 ret = drmIoctl(fd, DRM_IOCTL_EXYNOS_G2D_GET_VER, &ver);
216 fprintf(stderr, "failed to get version.\n");
221 ctx->major = ver.major;
222 ctx->minor = ver.minor;
224 printf("g2d version(%d.%d).\n", ctx->major, ctx->minor);
228 drm_public void g2d_fini(struct g2d_context *ctx)
235 * g2d_exec - start the dma to process all commands summited by g2d_flush().
237 * @ctx: a pointer to g2d_context structure.
239 drm_public int g2d_exec(struct g2d_context *ctx)
241 struct drm_exynos_g2d_exec exec;
244 if (ctx->cmdlist_nr == 0)
249 ret = drmIoctl(ctx->fd, DRM_IOCTL_EXYNOS_G2D_EXEC, &exec);
251 fprintf(stderr, "failed to execute.\n");
261 * g2d_solid_fill - fill given buffer with given color data.
263 * @ctx: a pointer to g2d_context structure.
264 * @img: a pointer to g2d_image structure including image and buffer
266 * @x: x start position to buffer filled with given color data.
267 * @y: y start position to buffer filled with given color data.
268 * @w: width value to buffer filled with given color data.
269 * @h: height value to buffer filled with given color data.
272 g2d_solid_fill(struct g2d_context *ctx, struct g2d_image *img,
273 unsigned int x, unsigned int y, unsigned int w,
276 union g2d_bitblt_cmd_val bitblt;
277 union g2d_point_val pt;
279 g2d_add_cmd(ctx, DST_SELECT_REG, G2D_SELECT_MODE_NORMAL);
280 g2d_add_cmd(ctx, DST_COLOR_MODE_REG, img->color_mode);
282 if (img->buf_type == G2D_IMGBUF_USERPTR)
283 g2d_add_cmd(ctx, DST_BASE_ADDR_REG | G2D_BUF_USERPTR,
284 (unsigned long)&img->user_ptr[0]);
286 g2d_add_cmd(ctx, DST_BASE_ADDR_REG, img->bo[0]);
288 g2d_add_cmd(ctx, DST_STRIDE_REG, img->stride);
290 if (x + w > img->width)
292 if (y + h > img->height)
298 g2d_add_cmd(ctx, DST_LEFT_TOP_REG, pt.val);
304 g2d_add_cmd(ctx, DST_RIGHT_BOTTOM_REG, pt.val);
306 g2d_add_cmd(ctx, SF_COLOR_REG, img->color);
309 bitblt.data.fast_solid_color_fill_en = 1;
310 g2d_add_cmd(ctx, BITBLT_COMMAND_REG, bitblt.val);
318 * g2d_copy - copy contents in source buffer to destination buffer.
320 * @ctx: a pointer to g2d_context structure.
321 * @src: a pointer to g2d_image structure including image and buffer
322 * information to source.
323 * @dst: a pointer to g2d_image structure including image and buffer
324 * information to destination.
325 * @src_x: x start position to source buffer.
326 * @src_y: y start position to source buffer.
327 * @dst_x: x start position to destination buffer.
328 * @dst_y: y start position to destination buffer.
329 * @w: width value to source and destination buffers.
330 * @h: height value to source and destination buffers.
333 g2d_copy(struct g2d_context *ctx, struct g2d_image *src,
334 struct g2d_image *dst, unsigned int src_x, unsigned int src_y,
335 unsigned int dst_x, unsigned dst_y, unsigned int w,
338 union g2d_rop4_val rop4;
339 union g2d_point_val pt;
340 unsigned int src_w = 0, src_h = 0, dst_w = 0, dst_h = 0;
342 g2d_add_cmd(ctx, DST_SELECT_REG, G2D_SELECT_MODE_BGCOLOR);
343 g2d_add_cmd(ctx, DST_COLOR_MODE_REG, dst->color_mode);
344 if (dst->buf_type == G2D_IMGBUF_USERPTR)
345 g2d_add_cmd(ctx, DST_BASE_ADDR_REG | G2D_BUF_USERPTR,
346 (unsigned long)&dst->user_ptr[0]);
348 g2d_add_cmd(ctx, DST_BASE_ADDR_REG, dst->bo[0]);
350 g2d_add_cmd(ctx, DST_STRIDE_REG, dst->stride);
352 g2d_add_cmd(ctx, SRC_SELECT_REG, G2D_SELECT_MODE_NORMAL);
353 g2d_add_cmd(ctx, SRC_COLOR_MODE_REG, src->color_mode);
354 if (src->buf_type == G2D_IMGBUF_USERPTR)
355 g2d_add_cmd(ctx, SRC_BASE_ADDR_REG | G2D_BUF_USERPTR,
356 (unsigned long)&src->user_ptr[0]);
358 g2d_add_cmd(ctx, SRC_BASE_ADDR_REG, src->bo[0]);
360 g2d_add_cmd(ctx, SRC_STRIDE_REG, src->stride);
364 if (src_x + src->width > w)
365 src_w = src->width - src_x;
366 if (src_y + src->height > h)
367 src_h = src->height - src_y;
371 if (dst_x + dst->width > w)
372 dst_w = dst->width - dst_x;
373 if (dst_y + dst->height > h)
374 dst_h = dst->height - dst_y;
376 w = MIN(src_w, dst_w);
377 h = MIN(src_h, dst_h);
379 if (w <= 0 || h <= 0) {
380 fprintf(stderr, "invalid width or height.\n");
388 g2d_add_cmd(ctx, SRC_LEFT_TOP_REG, pt.val);
390 pt.data.x = src_x + w;
391 pt.data.y = src_y + h;
392 g2d_add_cmd(ctx, SRC_RIGHT_BOTTOM_REG, pt.val);
397 g2d_add_cmd(ctx, DST_LEFT_TOP_REG, pt.val);
399 pt.data.x = dst_x + w;
400 pt.data.y = dst_y + h;
401 g2d_add_cmd(ctx, DST_RIGHT_BOTTOM_REG, pt.val);
404 rop4.data.unmasked_rop3 = G2D_ROP3_SRC;
405 g2d_add_cmd(ctx, ROP4_REG, rop4.val);
413 * g2d_copy_with_scale - copy contents in source buffer to destination buffer
414 * scaling up or down properly.
416 * @ctx: a pointer to g2d_context structure.
417 * @src: a pointer to g2d_image structure including image and buffer
418 * information to source.
419 * @dst: a pointer to g2d_image structure including image and buffer
420 * information to destination.
421 * @src_x: x start position to source buffer.
422 * @src_y: y start position to source buffer.
423 * @src_w: width value to source buffer.
424 * @src_h: height value to source buffer.
425 * @dst_x: x start position to destination buffer.
426 * @dst_y: y start position to destination buffer.
427 * @dst_w: width value to destination buffer.
428 * @dst_h: height value to destination buffer.
429 * @negative: indicate that it uses color negative to source and
430 * destination buffers.
433 g2d_copy_with_scale(struct g2d_context *ctx, struct g2d_image *src,
434 struct g2d_image *dst, unsigned int src_x,
435 unsigned int src_y, unsigned int src_w,
436 unsigned int src_h, unsigned int dst_x,
437 unsigned int dst_y, unsigned int dst_w,
438 unsigned int dst_h, unsigned int negative)
440 union g2d_rop4_val rop4;
441 union g2d_point_val pt;
443 unsigned int scale_x, scale_y;
445 g2d_add_cmd(ctx, DST_SELECT_REG, G2D_SELECT_MODE_BGCOLOR);
446 g2d_add_cmd(ctx, DST_COLOR_MODE_REG, dst->color_mode);
447 if (dst->buf_type == G2D_IMGBUF_USERPTR)
448 g2d_add_cmd(ctx, DST_BASE_ADDR_REG | G2D_BUF_USERPTR,
449 (unsigned long)&dst->user_ptr[0]);
451 g2d_add_cmd(ctx, DST_BASE_ADDR_REG, dst->bo[0]);
453 g2d_add_cmd(ctx, DST_STRIDE_REG, dst->stride);
455 g2d_add_cmd(ctx, SRC_SELECT_REG, G2D_SELECT_MODE_NORMAL);
456 g2d_add_cmd(ctx, SRC_COLOR_MODE_REG, src->color_mode);
457 if (src->buf_type == G2D_IMGBUF_USERPTR)
458 g2d_add_cmd(ctx, SRC_BASE_ADDR_REG | G2D_BUF_USERPTR,
459 (unsigned long)&src->user_ptr[0]);
461 g2d_add_cmd(ctx, SRC_BASE_ADDR_REG, src->bo[0]);
463 g2d_add_cmd(ctx, SRC_STRIDE_REG, src->stride);
465 if (src_w == dst_w && src_h == dst_h)
469 scale_x = g2d_get_scaling(src_w, dst_w);
470 scale_y = g2d_get_scaling(src_h, dst_h);
473 if (src_x + src_w > src->width)
474 src_w = src->width - src_x;
475 if (src_y + src_h > src->height)
476 src_h = src->height - src_y;
478 if (dst_x + dst_w > dst->width)
479 dst_w = dst->width - dst_x;
480 if (dst_y + dst_h > dst->height)
481 dst_h = dst->height - dst_y;
483 if (src_w <= 0 || src_h <= 0 || dst_w <= 0 || dst_h <= 0) {
484 fprintf(stderr, "invalid width or height.\n");
490 g2d_add_cmd(ctx, BG_COLOR_REG, 0x00FFFFFF);
492 rop4.data.unmasked_rop3 = G2D_ROP3_SRC^G2D_ROP3_DST;
493 g2d_add_cmd(ctx, ROP4_REG, rop4.val);
496 rop4.data.unmasked_rop3 = G2D_ROP3_SRC;
497 g2d_add_cmd(ctx, ROP4_REG, rop4.val);
501 g2d_add_cmd(ctx, SRC_SCALE_CTRL_REG, G2D_SCALE_MODE_BILINEAR);
502 g2d_add_cmd(ctx, SRC_XSCALE_REG, scale_x);
503 g2d_add_cmd(ctx, SRC_YSCALE_REG, scale_y);
509 g2d_add_cmd(ctx, SRC_LEFT_TOP_REG, pt.val);
511 pt.data.x = src_x + src_w;
512 pt.data.y = src_y + src_h;
513 g2d_add_cmd(ctx, SRC_RIGHT_BOTTOM_REG, pt.val);
518 g2d_add_cmd(ctx, DST_LEFT_TOP_REG, pt.val);
520 pt.data.x = dst_x + dst_w;
521 pt.data.y = dst_y + dst_h;
522 g2d_add_cmd(ctx, DST_RIGHT_BOTTOM_REG, pt.val);
530 * g2d_blend - blend image data in source and destion buffers
532 * @ctx: a pointer to g2d_context structure.
533 * @src: a pointer to g2d_image structure including image and buffer
534 * information to source.
535 * @dst: a pointer to g2d_image structure including image and buffer
536 * information to destination.
537 * @src_x: x start position to source buffer.
538 * @src_y: y start position to source buffer.
539 * @dst_x: x start position to destination buffer.
540 * @dst_y: y start position to destination buffer.
541 * @w: width value to source and destination buffer.
542 * @h: height value to source and destination buffer.
543 * @op: blend operation type.
546 g2d_blend(struct g2d_context *ctx, struct g2d_image *src,
547 struct g2d_image *dst, unsigned int src_x,
548 unsigned int src_y, unsigned int dst_x, unsigned int dst_y,
549 unsigned int w, unsigned int h, enum e_g2d_op op)
551 union g2d_point_val pt;
552 union g2d_bitblt_cmd_val bitblt;
553 union g2d_blend_func_val blend;
554 unsigned int src_w = 0, src_h = 0, dst_w = 0, dst_h = 0;
559 if (op == G2D_OP_SRC || op == G2D_OP_CLEAR)
560 g2d_add_cmd(ctx, DST_SELECT_REG, G2D_SELECT_MODE_BGCOLOR);
562 g2d_add_cmd(ctx, DST_SELECT_REG, G2D_SELECT_MODE_NORMAL);
564 g2d_add_cmd(ctx, DST_COLOR_MODE_REG, dst->color_mode);
565 if (dst->buf_type == G2D_IMGBUF_USERPTR)
566 g2d_add_cmd(ctx, DST_BASE_ADDR_REG | G2D_BUF_USERPTR,
567 (unsigned long)&dst->user_ptr[0]);
569 g2d_add_cmd(ctx, DST_BASE_ADDR_REG, dst->bo[0]);
571 g2d_add_cmd(ctx, DST_STRIDE_REG, dst->stride);
573 g2d_add_cmd(ctx, SRC_SELECT_REG, src->select_mode);
574 g2d_add_cmd(ctx, SRC_COLOR_MODE_REG, src->color_mode);
576 switch (src->select_mode) {
577 case G2D_SELECT_MODE_NORMAL:
578 if (src->buf_type == G2D_IMGBUF_USERPTR)
579 g2d_add_cmd(ctx, SRC_BASE_ADDR_REG | G2D_BUF_USERPTR,
580 (unsigned long)&src->user_ptr[0]);
582 g2d_add_cmd(ctx, SRC_BASE_ADDR_REG, src->bo[0]);
584 g2d_add_cmd(ctx, SRC_STRIDE_REG, src->stride);
586 case G2D_SELECT_MODE_FGCOLOR:
587 g2d_add_cmd(ctx, FG_COLOR_REG, src->color);
589 case G2D_SELECT_MODE_BGCOLOR:
590 g2d_add_cmd(ctx, BG_COLOR_REG, src->color);
593 fprintf(stderr , "failed to set src.\n");
599 if (src_x + w > src->width)
600 src_w = src->width - src_x;
601 if (src_y + h > src->height)
602 src_h = src->height - src_y;
606 if (dst_x + w > dst->width)
607 dst_w = dst->width - dst_x;
608 if (dst_y + h > dst->height)
609 dst_h = dst->height - dst_y;
611 w = MIN(src_w, dst_w);
612 h = MIN(src_h, dst_h);
614 if (w <= 0 || h <= 0) {
615 fprintf(stderr, "invalid width or height.\n");
620 bitblt.data.alpha_blend_mode = G2D_ALPHA_BLEND_MODE_ENABLE;
621 blend.val = g2d_get_blend_op(op);
622 g2d_add_cmd(ctx, BITBLT_COMMAND_REG, bitblt.val);
623 g2d_add_cmd(ctx, BLEND_FUNCTION_REG, blend.val);
628 g2d_add_cmd(ctx, SRC_LEFT_TOP_REG, pt.val);
630 pt.data.x = src_x + w;
631 pt.data.y = src_y + h;
632 g2d_add_cmd(ctx, SRC_RIGHT_BOTTOM_REG, pt.val);
637 g2d_add_cmd(ctx, DST_LEFT_TOP_REG, pt.val);
639 pt.data.x = dst_x + w;
640 pt.data.y = dst_y + h;
641 g2d_add_cmd(ctx, DST_RIGHT_BOTTOM_REG, pt.val);