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 enum g2d_base_addr_reg {
49 static unsigned int g2d_get_scaling(unsigned int src, unsigned int dst)
52 * The G2D hw scaling factor is a normalized inverse of the scaling factor.
53 * For example: When source width is 100 and destination width is 200
54 * (scaling of 2x), then the hw factor is NC * 100 / 200.
55 * The normalization factor (NC) is 2^16 = 0x10000.
58 return ((src << 16) / dst);
61 static unsigned int g2d_get_blend_op(enum e_g2d_op op)
63 union g2d_blend_func_val val;
69 case G2D_OP_DISJOINT_CLEAR:
70 case G2D_OP_CONJOINT_CLEAR:
71 SET_BF(val, G2D_COEFF_MODE_ZERO, 0, 0, 0, G2D_COEFF_MODE_ZERO,
75 case G2D_OP_DISJOINT_SRC:
76 case G2D_OP_CONJOINT_SRC:
77 SET_BF(val, G2D_COEFF_MODE_ONE, 0, 0, 0, G2D_COEFF_MODE_ZERO,
81 case G2D_OP_DISJOINT_DST:
82 case G2D_OP_CONJOINT_DST:
83 SET_BF(val, G2D_COEFF_MODE_ZERO, 0, 0, 0, G2D_COEFF_MODE_ONE,
87 SET_BF(val, G2D_COEFF_MODE_ONE, 0, 0, 0,
88 G2D_COEFF_MODE_SRC_ALPHA, 1, 0, 0);
90 case G2D_OP_INTERPOLATE:
91 SET_BF(val, G2D_COEFF_MODE_SRC_ALPHA, 0, 0, 0,
92 G2D_COEFF_MODE_SRC_ALPHA, 1, 0, 0);
95 fprintf(stderr, "Not support operation(%d).\n", op);
96 SET_BF(val, G2D_COEFF_MODE_ONE, 0, 0, 0, G2D_COEFF_MODE_ZERO,
105 * g2d_add_cmd - set given command and value to user side command buffer.
107 * @ctx: a pointer to g2d_context structure.
108 * @cmd: command data.
109 * @value: value data.
111 static int g2d_add_cmd(struct g2d_context *ctx, unsigned long cmd,
114 switch (cmd & ~(G2D_BUF_USERPTR)) {
115 case SRC_BASE_ADDR_REG:
116 case SRC_PLANE2_BASE_ADDR_REG:
117 case DST_BASE_ADDR_REG:
118 case DST_PLANE2_BASE_ADDR_REG:
119 case PAT_BASE_ADDR_REG:
120 case MASK_BASE_ADDR_REG:
121 if (ctx->cmd_buf_nr >= G2D_MAX_GEM_CMD_NR) {
122 fprintf(stderr, "Overflow cmd_gem size.\n");
126 ctx->cmd_buf[ctx->cmd_buf_nr].offset = cmd;
127 ctx->cmd_buf[ctx->cmd_buf_nr].data = value;
131 if (ctx->cmd_nr >= G2D_MAX_CMD_NR) {
132 fprintf(stderr, "Overflow cmd size.\n");
136 ctx->cmd[ctx->cmd_nr].offset = cmd;
137 ctx->cmd[ctx->cmd_nr].data = value;
146 * g2d_add_base_addr - helper function to set dst/src base address register.
148 * @ctx: a pointer to g2d_context structure.
149 * @img: a pointer to the dst/src g2d_image structure.
150 * @reg: the register that should be set.
152 static void g2d_add_base_addr(struct g2d_context *ctx, struct g2d_image *img,
153 enum g2d_base_addr_reg reg)
155 const unsigned long cmd = (reg == g2d_dst) ?
156 DST_BASE_ADDR_REG : SRC_BASE_ADDR_REG;
158 if (img->buf_type == G2D_IMGBUF_USERPTR)
159 g2d_add_cmd(ctx, cmd | G2D_BUF_USERPTR,
160 (unsigned long)&img->user_ptr[0]);
162 g2d_add_cmd(ctx, cmd, img->bo[0]);
166 * g2d_reset - reset fimg2d hardware.
168 * @ctx: a pointer to g2d_context structure.
171 static void g2d_reset(struct g2d_context *ctx)
176 g2d_add_cmd(ctx, SOFT_RESET_REG, 0x01);
180 * g2d_flush - submit all commands and values in user side command buffer
181 * to command queue aware of fimg2d dma.
183 * @ctx: a pointer to g2d_context structure.
185 * This function should be called after all commands and values to user
186 * side command buffer are set. It submits that buffer to the kernel side driver.
188 static int g2d_flush(struct g2d_context *ctx)
191 struct drm_exynos_g2d_set_cmdlist cmdlist;
193 if (ctx->cmd_nr == 0 && ctx->cmd_buf_nr == 0)
196 if (ctx->cmdlist_nr >= G2D_MAX_CMD_LIST_NR) {
197 fprintf(stderr, "Overflow cmdlist.\n");
201 memset(&cmdlist, 0, sizeof(struct drm_exynos_g2d_set_cmdlist));
203 cmdlist.cmd = (uint64_t)(uintptr_t)&ctx->cmd[0];
204 cmdlist.cmd_buf = (uint64_t)(uintptr_t)&ctx->cmd_buf[0];
205 cmdlist.cmd_nr = ctx->cmd_nr;
206 cmdlist.cmd_buf_nr = ctx->cmd_buf_nr;
207 cmdlist.event_type = G2D_EVENT_NOT;
208 cmdlist.user_data = 0;
213 ret = drmIoctl(ctx->fd, DRM_IOCTL_EXYNOS_G2D_SET_CMDLIST, &cmdlist);
215 fprintf(stderr, "failed to set cmdlist.\n");
225 * g2d_init - create a new g2d context and get hardware version.
227 * fd: a file descriptor to an opened drm device.
229 drm_public struct g2d_context *g2d_init(int fd)
231 struct drm_exynos_g2d_get_ver ver;
232 struct g2d_context *ctx;
235 ctx = calloc(1, sizeof(*ctx));
237 fprintf(stderr, "failed to allocate context.\n");
243 ret = drmIoctl(fd, DRM_IOCTL_EXYNOS_G2D_GET_VER, &ver);
245 fprintf(stderr, "failed to get version.\n");
250 ctx->major = ver.major;
251 ctx->minor = ver.minor;
253 printf("g2d version(%d.%d).\n", ctx->major, ctx->minor);
257 drm_public void g2d_fini(struct g2d_context *ctx)
264 * g2d_exec - start the dma to process all commands summited by g2d_flush().
266 * @ctx: a pointer to g2d_context structure.
268 drm_public int g2d_exec(struct g2d_context *ctx)
270 struct drm_exynos_g2d_exec exec;
273 if (ctx->cmdlist_nr == 0)
278 ret = drmIoctl(ctx->fd, DRM_IOCTL_EXYNOS_G2D_EXEC, &exec);
280 fprintf(stderr, "failed to execute.\n");
290 * g2d_solid_fill - fill given buffer with given color data.
292 * @ctx: a pointer to g2d_context structure.
293 * @img: a pointer to g2d_image structure including image and buffer
295 * @x: x start position to buffer filled with given color data.
296 * @y: y start position to buffer filled with given color data.
297 * @w: width value to buffer filled with given color data.
298 * @h: height value to buffer filled with given color data.
301 g2d_solid_fill(struct g2d_context *ctx, struct g2d_image *img,
302 unsigned int x, unsigned int y, unsigned int w,
305 union g2d_bitblt_cmd_val bitblt;
306 union g2d_point_val pt;
308 g2d_add_cmd(ctx, DST_SELECT_REG, G2D_SELECT_MODE_NORMAL);
309 g2d_add_cmd(ctx, DST_COLOR_MODE_REG, img->color_mode);
310 g2d_add_base_addr(ctx, img, g2d_dst);
311 g2d_add_cmd(ctx, DST_STRIDE_REG, img->stride);
313 if (x + w > img->width)
315 if (y + h > img->height)
321 g2d_add_cmd(ctx, DST_LEFT_TOP_REG, pt.val);
327 g2d_add_cmd(ctx, DST_RIGHT_BOTTOM_REG, pt.val);
329 g2d_add_cmd(ctx, SF_COLOR_REG, img->color);
332 bitblt.data.fast_solid_color_fill_en = 1;
333 g2d_add_cmd(ctx, BITBLT_COMMAND_REG, bitblt.val);
341 * g2d_copy - copy contents in source buffer to destination buffer.
343 * @ctx: a pointer to g2d_context structure.
344 * @src: a pointer to g2d_image structure including image and buffer
345 * information to source.
346 * @dst: a pointer to g2d_image structure including image and buffer
347 * information to destination.
348 * @src_x: x start position to source buffer.
349 * @src_y: y start position to source buffer.
350 * @dst_x: x start position to destination buffer.
351 * @dst_y: y start position to destination buffer.
352 * @w: width value to source and destination buffers.
353 * @h: height value to source and destination buffers.
356 g2d_copy(struct g2d_context *ctx, struct g2d_image *src,
357 struct g2d_image *dst, unsigned int src_x, unsigned int src_y,
358 unsigned int dst_x, unsigned dst_y, unsigned int w,
361 union g2d_rop4_val rop4;
362 union g2d_point_val pt;
363 unsigned int src_w = 0, src_h = 0, dst_w = 0, dst_h = 0;
365 g2d_add_cmd(ctx, DST_SELECT_REG, G2D_SELECT_MODE_BGCOLOR);
366 g2d_add_cmd(ctx, DST_COLOR_MODE_REG, dst->color_mode);
367 g2d_add_base_addr(ctx, dst, g2d_dst);
368 g2d_add_cmd(ctx, DST_STRIDE_REG, dst->stride);
370 g2d_add_cmd(ctx, SRC_SELECT_REG, G2D_SELECT_MODE_NORMAL);
371 g2d_add_cmd(ctx, SRC_COLOR_MODE_REG, src->color_mode);
372 g2d_add_base_addr(ctx, src, g2d_src);
373 g2d_add_cmd(ctx, SRC_STRIDE_REG, src->stride);
377 if (src_x + src->width > w)
378 src_w = src->width - src_x;
379 if (src_y + src->height > h)
380 src_h = src->height - src_y;
384 if (dst_x + dst->width > w)
385 dst_w = dst->width - dst_x;
386 if (dst_y + dst->height > h)
387 dst_h = dst->height - dst_y;
389 w = MIN(src_w, dst_w);
390 h = MIN(src_h, dst_h);
392 if (w <= 0 || h <= 0) {
393 fprintf(stderr, "invalid width or height.\n");
401 g2d_add_cmd(ctx, SRC_LEFT_TOP_REG, pt.val);
403 pt.data.x = src_x + w;
404 pt.data.y = src_y + h;
405 g2d_add_cmd(ctx, SRC_RIGHT_BOTTOM_REG, pt.val);
410 g2d_add_cmd(ctx, DST_LEFT_TOP_REG, pt.val);
412 pt.data.x = dst_x + w;
413 pt.data.y = dst_y + h;
414 g2d_add_cmd(ctx, DST_RIGHT_BOTTOM_REG, pt.val);
417 rop4.data.unmasked_rop3 = G2D_ROP3_SRC;
418 g2d_add_cmd(ctx, ROP4_REG, rop4.val);
426 * g2d_copy_with_scale - copy contents in source buffer to destination buffer
427 * scaling up or down properly.
429 * @ctx: a pointer to g2d_context structure.
430 * @src: a pointer to g2d_image structure including image and buffer
431 * information to source.
432 * @dst: a pointer to g2d_image structure including image and buffer
433 * information to destination.
434 * @src_x: x start position to source buffer.
435 * @src_y: y start position to source buffer.
436 * @src_w: width value to source buffer.
437 * @src_h: height value to source buffer.
438 * @dst_x: x start position to destination buffer.
439 * @dst_y: y start position to destination buffer.
440 * @dst_w: width value to destination buffer.
441 * @dst_h: height value to destination buffer.
442 * @negative: indicate that it uses color negative to source and
443 * destination buffers.
446 g2d_copy_with_scale(struct g2d_context *ctx, struct g2d_image *src,
447 struct g2d_image *dst, unsigned int src_x,
448 unsigned int src_y, unsigned int src_w,
449 unsigned int src_h, unsigned int dst_x,
450 unsigned int dst_y, unsigned int dst_w,
451 unsigned int dst_h, unsigned int negative)
453 union g2d_rop4_val rop4;
454 union g2d_point_val pt;
456 unsigned int scale_x, scale_y;
458 g2d_add_cmd(ctx, DST_SELECT_REG, G2D_SELECT_MODE_BGCOLOR);
459 g2d_add_cmd(ctx, DST_COLOR_MODE_REG, dst->color_mode);
460 g2d_add_base_addr(ctx, dst, g2d_dst);
461 g2d_add_cmd(ctx, DST_STRIDE_REG, dst->stride);
463 g2d_add_cmd(ctx, SRC_SELECT_REG, G2D_SELECT_MODE_NORMAL);
464 g2d_add_cmd(ctx, SRC_COLOR_MODE_REG, src->color_mode);
465 g2d_add_base_addr(ctx, src, g2d_src);
466 g2d_add_cmd(ctx, SRC_STRIDE_REG, src->stride);
468 if (src_w == dst_w && src_h == dst_h)
472 scale_x = g2d_get_scaling(src_w, dst_w);
473 scale_y = g2d_get_scaling(src_h, dst_h);
476 if (src_x + src_w > src->width)
477 src_w = src->width - src_x;
478 if (src_y + src_h > src->height)
479 src_h = src->height - src_y;
481 if (dst_x + dst_w > dst->width)
482 dst_w = dst->width - dst_x;
483 if (dst_y + dst_h > dst->height)
484 dst_h = dst->height - dst_y;
486 if (src_w <= 0 || src_h <= 0 || dst_w <= 0 || dst_h <= 0) {
487 fprintf(stderr, "invalid width or height.\n");
493 g2d_add_cmd(ctx, BG_COLOR_REG, 0x00FFFFFF);
495 rop4.data.unmasked_rop3 = G2D_ROP3_SRC^G2D_ROP3_DST;
496 g2d_add_cmd(ctx, ROP4_REG, rop4.val);
499 rop4.data.unmasked_rop3 = G2D_ROP3_SRC;
500 g2d_add_cmd(ctx, ROP4_REG, rop4.val);
504 g2d_add_cmd(ctx, SRC_SCALE_CTRL_REG, G2D_SCALE_MODE_BILINEAR);
505 g2d_add_cmd(ctx, SRC_XSCALE_REG, scale_x);
506 g2d_add_cmd(ctx, SRC_YSCALE_REG, scale_y);
512 g2d_add_cmd(ctx, SRC_LEFT_TOP_REG, pt.val);
514 pt.data.x = src_x + src_w;
515 pt.data.y = src_y + src_h;
516 g2d_add_cmd(ctx, SRC_RIGHT_BOTTOM_REG, pt.val);
521 g2d_add_cmd(ctx, DST_LEFT_TOP_REG, pt.val);
523 pt.data.x = dst_x + dst_w;
524 pt.data.y = dst_y + dst_h;
525 g2d_add_cmd(ctx, DST_RIGHT_BOTTOM_REG, pt.val);
533 * g2d_blend - blend image data in source and destination buffers.
535 * @ctx: a pointer to g2d_context structure.
536 * @src: a pointer to g2d_image structure including image and buffer
537 * information to source.
538 * @dst: a pointer to g2d_image structure including image and buffer
539 * information to destination.
540 * @src_x: x start position to source buffer.
541 * @src_y: y start position to source buffer.
542 * @dst_x: x start position to destination buffer.
543 * @dst_y: y start position to destination buffer.
544 * @w: width value to source and destination buffer.
545 * @h: height value to source and destination buffer.
546 * @op: blend operation type.
549 g2d_blend(struct g2d_context *ctx, struct g2d_image *src,
550 struct g2d_image *dst, unsigned int src_x,
551 unsigned int src_y, unsigned int dst_x, unsigned int dst_y,
552 unsigned int w, unsigned int h, enum e_g2d_op op)
554 union g2d_point_val pt;
555 union g2d_bitblt_cmd_val bitblt;
556 union g2d_blend_func_val blend;
557 unsigned int src_w = 0, src_h = 0, dst_w = 0, dst_h = 0;
562 if (op == G2D_OP_SRC || op == G2D_OP_CLEAR)
563 g2d_add_cmd(ctx, DST_SELECT_REG, G2D_SELECT_MODE_BGCOLOR);
565 g2d_add_cmd(ctx, DST_SELECT_REG, G2D_SELECT_MODE_NORMAL);
567 g2d_add_cmd(ctx, DST_COLOR_MODE_REG, dst->color_mode);
568 g2d_add_base_addr(ctx, dst, g2d_dst);
569 g2d_add_cmd(ctx, DST_STRIDE_REG, dst->stride);
571 g2d_add_cmd(ctx, SRC_SELECT_REG, src->select_mode);
572 g2d_add_cmd(ctx, SRC_COLOR_MODE_REG, src->color_mode);
574 switch (src->select_mode) {
575 case G2D_SELECT_MODE_NORMAL:
576 g2d_add_base_addr(ctx, src, g2d_src);
577 g2d_add_cmd(ctx, SRC_STRIDE_REG, src->stride);
579 case G2D_SELECT_MODE_FGCOLOR:
580 g2d_add_cmd(ctx, FG_COLOR_REG, src->color);
582 case G2D_SELECT_MODE_BGCOLOR:
583 g2d_add_cmd(ctx, BG_COLOR_REG, src->color);
586 fprintf(stderr , "failed to set src.\n");
592 if (src_x + w > src->width)
593 src_w = src->width - src_x;
594 if (src_y + h > src->height)
595 src_h = src->height - src_y;
599 if (dst_x + w > dst->width)
600 dst_w = dst->width - dst_x;
601 if (dst_y + h > dst->height)
602 dst_h = dst->height - dst_y;
604 w = MIN(src_w, dst_w);
605 h = MIN(src_h, dst_h);
607 if (w <= 0 || h <= 0) {
608 fprintf(stderr, "invalid width or height.\n");
613 bitblt.data.alpha_blend_mode = G2D_ALPHA_BLEND_MODE_ENABLE;
614 blend.val = g2d_get_blend_op(op);
615 g2d_add_cmd(ctx, BITBLT_COMMAND_REG, bitblt.val);
616 g2d_add_cmd(ctx, BLEND_FUNCTION_REG, blend.val);
621 g2d_add_cmd(ctx, SRC_LEFT_TOP_REG, pt.val);
623 pt.data.x = src_x + w;
624 pt.data.y = src_y + h;
625 g2d_add_cmd(ctx, SRC_RIGHT_BOTTOM_REG, pt.val);
630 g2d_add_cmd(ctx, DST_LEFT_TOP_REG, pt.val);
632 pt.data.x = dst_x + w;
633 pt.data.y = dst_y + h;
634 g2d_add_cmd(ctx, DST_RIGHT_BOTTOM_REG, pt.val);
642 * g2d_scale_and_blend - apply scaling to source buffer and then blend to destination buffer
644 * @ctx: a pointer to g2d_context structure.
645 * @src: a pointer to g2d_image structure including image and buffer
646 * information to source.
647 * @dst: a pointer to g2d_image structure including image and buffer
648 * information to destination.
649 * @src_x: x start position to source buffer.
650 * @src_y: y start position to source buffer.
651 * @src_w: width value to source buffer.
652 * @src_h: height value to source buffer.
653 * @dst_x: x start position to destination buffer.
654 * @dst_y: y start position to destination buffer.
655 * @dst_w: width value to destination buffer.
656 * @dst_h: height value to destination buffer.
657 * @op: blend operation type.
660 g2d_scale_and_blend(struct g2d_context *ctx, struct g2d_image *src,
661 struct g2d_image *dst, unsigned int src_x, unsigned int src_y,
662 unsigned int src_w, unsigned int src_h, unsigned int dst_x,
663 unsigned int dst_y, unsigned int dst_w, unsigned int dst_h,
666 union g2d_point_val pt;
667 union g2d_bitblt_cmd_val bitblt;
668 union g2d_blend_func_val blend;
670 unsigned int scale_x, scale_y;
675 if (op == G2D_OP_SRC || op == G2D_OP_CLEAR)
676 g2d_add_cmd(ctx, DST_SELECT_REG, G2D_SELECT_MODE_BGCOLOR);
678 g2d_add_cmd(ctx, DST_SELECT_REG, G2D_SELECT_MODE_NORMAL);
680 g2d_add_cmd(ctx, DST_COLOR_MODE_REG, dst->color_mode);
681 if (dst->buf_type == G2D_IMGBUF_USERPTR)
682 g2d_add_cmd(ctx, DST_BASE_ADDR_REG | G2D_BUF_USERPTR,
683 (unsigned long)&dst->user_ptr[0]);
685 g2d_add_cmd(ctx, DST_BASE_ADDR_REG, dst->bo[0]);
687 g2d_add_cmd(ctx, DST_STRIDE_REG, dst->stride);
689 g2d_add_cmd(ctx, SRC_SELECT_REG, src->select_mode);
690 g2d_add_cmd(ctx, SRC_COLOR_MODE_REG, src->color_mode);
692 switch (src->select_mode) {
693 case G2D_SELECT_MODE_NORMAL:
694 if (src->buf_type == G2D_IMGBUF_USERPTR)
695 g2d_add_cmd(ctx, SRC_BASE_ADDR_REG | G2D_BUF_USERPTR,
696 (unsigned long)&src->user_ptr[0]);
698 g2d_add_cmd(ctx, SRC_BASE_ADDR_REG, src->bo[0]);
700 g2d_add_cmd(ctx, SRC_STRIDE_REG, src->stride);
702 case G2D_SELECT_MODE_FGCOLOR:
703 g2d_add_cmd(ctx, FG_COLOR_REG, src->color);
705 case G2D_SELECT_MODE_BGCOLOR:
706 g2d_add_cmd(ctx, BG_COLOR_REG, src->color);
709 fprintf(stderr , "failed to set src.\n");
713 if (src_w == dst_w && src_h == dst_h)
717 scale_x = g2d_get_scaling(src_w, dst_w);
718 scale_y = g2d_get_scaling(src_h, dst_h);
721 if (src_x + src_w > src->width)
722 src_w = src->width - src_x;
723 if (src_y + src_h > src->height)
724 src_h = src->height - src_y;
726 if (dst_x + dst_w > dst->width)
727 dst_w = dst->width - dst_x;
728 if (dst_y + dst_h > dst->height)
729 dst_h = dst->height - dst_y;
731 if (src_w <= 0 || src_h <= 0 || dst_w <= 0 || dst_h <= 0) {
732 fprintf(stderr, "invalid width or height.\n");
738 g2d_add_cmd(ctx, SRC_SCALE_CTRL_REG, G2D_SCALE_MODE_BILINEAR);
739 g2d_add_cmd(ctx, SRC_XSCALE_REG, scale_x);
740 g2d_add_cmd(ctx, SRC_YSCALE_REG, scale_y);
743 bitblt.data.alpha_blend_mode = G2D_ALPHA_BLEND_MODE_ENABLE;
744 blend.val = g2d_get_blend_op(op);
745 g2d_add_cmd(ctx, BITBLT_COMMAND_REG, bitblt.val);
746 g2d_add_cmd(ctx, BLEND_FUNCTION_REG, blend.val);
751 g2d_add_cmd(ctx, SRC_LEFT_TOP_REG, pt.val);
753 pt.data.x = src_x + src_w;
754 pt.data.y = src_y + src_h;
755 g2d_add_cmd(ctx, SRC_RIGHT_BOTTOM_REG, pt.val);
760 g2d_add_cmd(ctx, DST_LEFT_TOP_REG, pt.val);
762 pt.data.x = dst_x + dst_w;
763 pt.data.y = dst_y + dst_h;
764 g2d_add_cmd(ctx, DST_RIGHT_BOTTOM_REG, pt.val);