2 * Copyright (C) 2012 Samsung Electronics Co.Ltd
4 * Eunchul Kim <chulspro.kim@samsung.com>
5 * Jinyoung Jeon <jy0.jeon@samsung.com>
6 * Sangmin Lee <lsmin.lee@samsung.com>
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the
10 * Free Software Foundation; either version 2 of the License, or (at your
11 * option) any later version.
14 #include <linux/kernel.h>
15 #include <linux/platform_device.h>
16 #include <linux/clk.h>
17 #include <linux/pm_runtime.h>
18 #include <plat/map-base.h>
21 #include <drm/exynos_drm.h>
23 #include "exynos_drm_drv.h"
24 #include "exynos_drm_ipp.h"
25 #include "exynos_drm_gsc.h"
28 * GSC stands for General SCaler and
29 * supports image scaler/rotator and input/output DMA operations.
30 * input DMA reads image data from the memory.
31 * output DMA writes image data to memory.
32 * GSC supports image rotation and image effect functions.
34 * M2M operation : supports crop/scale/rotation/csc so on.
35 * Memory ----> GSC H/W ----> Memory.
36 * Writeback operation : supports cloned screen with FIMD.
37 * FIMD ----> GSC H/W ----> Memory.
38 * Output operation : supports direct display using local path.
39 * Memory ----> GSC H/W ----> FIMD, Mixer.
44 * 1. check suspend/resume api if needed.
45 * 2. need to check use case platform_device_id.
46 * 3. check src/dst size with, height.
47 * 4. added check_prepare api for right register.
48 * 5. need to add supported list in prop_list.
49 * 6. check prescaler/scaler optimization.
52 #define GSC_MAX_DEVS 4
54 #define GSC_MAX_DST 16
55 #define GSC_RESET_TIMEOUT 50
56 #define GSC_BUF_STOP 1
57 #define GSC_BUF_START 2
59 #define GSC_WIDTH_ITU_709 1280
60 #define GSC_SC_UP_MAX_RATIO 65536
61 #define GSC_SC_DOWN_RATIO_7_8 74898
62 #define GSC_SC_DOWN_RATIO_6_8 87381
63 #define GSC_SC_DOWN_RATIO_5_8 104857
64 #define GSC_SC_DOWN_RATIO_4_8 131072
65 #define GSC_SC_DOWN_RATIO_3_8 174762
66 #define GSC_SC_DOWN_RATIO_2_8 262144
67 #define GSC_REFRESH_MIN 12
68 #define GSC_REFRESH_MAX 60
69 #define GSC_CROP_MAX 8192
70 #define GSC_CROP_MIN 32
71 #define GSC_SCALE_MAX 4224
72 #define GSC_SCALE_MIN 32
73 #define GSC_COEF_RATIO 7
74 #define GSC_COEF_PHASE 9
75 #define GSC_COEF_ATTR 16
76 #define GSC_COEF_H_8T 8
77 #define GSC_COEF_V_4T 4
78 #define GSC_COEF_DEPTH 3
80 #define get_gsc_context(dev) platform_get_drvdata(to_platform_device(dev))
81 #define get_ctx_from_ippdrv(ippdrv) container_of(ippdrv,\
82 struct gsc_context, ippdrv);
83 #define gsc_read(offset) readl(ctx->regs + (offset))
84 #define gsc_write(cfg, offset) writel(cfg, ctx->regs + (offset))
87 * A structure of scaler.
89 * @range: narrow, wide.
90 * @pre_shfactor: pre sclaer shift factor.
91 * @pre_hratio: horizontal ratio of the prescaler.
92 * @pre_vratio: vertical ratio of the prescaler.
93 * @main_hratio: the main scaler's horizontal ratio.
94 * @main_vratio: the main scaler's vertical ratio.
101 unsigned long main_hratio;
102 unsigned long main_vratio;
106 * A structure of scaler capability.
108 * find user manual 49.2 features.
109 * @tile_w: tile mode or rotation width.
110 * @tile_h: tile mode or rotation height.
111 * @w: other cases width.
112 * @h: other cases height.
114 struct gsc_capability {
115 /* tile or rotation */
124 * A structure of gsc context.
126 * @ippdrv: prepare initialization using ippdrv.
127 * @regs_res: register resources.
128 * @regs: memory mapped io registers.
129 * @lock: locking of operations.
130 * @gsc_clk: gsc gate clock.
131 * @sc: scaler infomations.
134 * @rotation: supports rotation of src.
135 * @suspended: qos operations.
138 struct exynos_drm_ippdrv ippdrv;
139 struct resource *regs_res;
143 struct gsc_scaler sc;
150 /* 8-tap Filter Coefficient */
151 static const int h_coef_8t[GSC_COEF_RATIO][GSC_COEF_ATTR][GSC_COEF_H_8T] = {
152 { /* Ratio <= 65536 (~8:8) */
153 { 0, 0, 0, 128, 0, 0, 0, 0 },
154 { -1, 2, -6, 127, 7, -2, 1, 0 },
155 { -1, 4, -12, 125, 16, -5, 1, 0 },
156 { -1, 5, -15, 120, 25, -8, 2, 0 },
157 { -1, 6, -18, 114, 35, -10, 3, -1 },
158 { -1, 6, -20, 107, 46, -13, 4, -1 },
159 { -2, 7, -21, 99, 57, -16, 5, -1 },
160 { -1, 6, -20, 89, 68, -18, 5, -1 },
161 { -1, 6, -20, 79, 79, -20, 6, -1 },
162 { -1, 5, -18, 68, 89, -20, 6, -1 },
163 { -1, 5, -16, 57, 99, -21, 7, -2 },
164 { -1, 4, -13, 46, 107, -20, 6, -1 },
165 { -1, 3, -10, 35, 114, -18, 6, -1 },
166 { 0, 2, -8, 25, 120, -15, 5, -1 },
167 { 0, 1, -5, 16, 125, -12, 4, -1 },
168 { 0, 1, -2, 7, 127, -6, 2, -1 }
169 }, { /* 65536 < Ratio <= 74898 (~8:7) */
170 { 3, -8, 14, 111, 13, -8, 3, 0 },
171 { 2, -6, 7, 112, 21, -10, 3, -1 },
172 { 2, -4, 1, 110, 28, -12, 4, -1 },
173 { 1, -2, -3, 106, 36, -13, 4, -1 },
174 { 1, -1, -7, 103, 44, -15, 4, -1 },
175 { 1, 1, -11, 97, 53, -16, 4, -1 },
176 { 0, 2, -13, 91, 61, -16, 4, -1 },
177 { 0, 3, -15, 85, 69, -17, 4, -1 },
178 { 0, 3, -16, 77, 77, -16, 3, 0 },
179 { -1, 4, -17, 69, 85, -15, 3, 0 },
180 { -1, 4, -16, 61, 91, -13, 2, 0 },
181 { -1, 4, -16, 53, 97, -11, 1, 1 },
182 { -1, 4, -15, 44, 103, -7, -1, 1 },
183 { -1, 4, -13, 36, 106, -3, -2, 1 },
184 { -1, 4, -12, 28, 110, 1, -4, 2 },
185 { -1, 3, -10, 21, 112, 7, -6, 2 }
186 }, { /* 74898 < Ratio <= 87381 (~8:6) */
187 { 2, -11, 25, 96, 25, -11, 2, 0 },
188 { 2, -10, 19, 96, 31, -12, 2, 0 },
189 { 2, -9, 14, 94, 37, -12, 2, 0 },
190 { 2, -8, 10, 92, 43, -12, 1, 0 },
191 { 2, -7, 5, 90, 49, -12, 1, 0 },
192 { 2, -5, 1, 86, 55, -12, 0, 1 },
193 { 2, -4, -2, 82, 61, -11, -1, 1 },
194 { 1, -3, -5, 77, 67, -9, -1, 1 },
195 { 1, -2, -7, 72, 72, -7, -2, 1 },
196 { 1, -1, -9, 67, 77, -5, -3, 1 },
197 { 1, -1, -11, 61, 82, -2, -4, 2 },
198 { 1, 0, -12, 55, 86, 1, -5, 2 },
199 { 0, 1, -12, 49, 90, 5, -7, 2 },
200 { 0, 1, -12, 43, 92, 10, -8, 2 },
201 { 0, 2, -12, 37, 94, 14, -9, 2 },
202 { 0, 2, -12, 31, 96, 19, -10, 2 }
203 }, { /* 87381 < Ratio <= 104857 (~8:5) */
204 { -1, -8, 33, 80, 33, -8, -1, 0 },
205 { -1, -8, 28, 80, 37, -7, -2, 1 },
206 { 0, -8, 24, 79, 41, -7, -2, 1 },
207 { 0, -8, 20, 78, 46, -6, -3, 1 },
208 { 0, -8, 16, 76, 50, -4, -3, 1 },
209 { 0, -7, 13, 74, 54, -3, -4, 1 },
210 { 1, -7, 10, 71, 58, -1, -5, 1 },
211 { 1, -6, 6, 68, 62, 1, -5, 1 },
212 { 1, -6, 4, 65, 65, 4, -6, 1 },
213 { 1, -5, 1, 62, 68, 6, -6, 1 },
214 { 1, -5, -1, 58, 71, 10, -7, 1 },
215 { 1, -4, -3, 54, 74, 13, -7, 0 },
216 { 1, -3, -4, 50, 76, 16, -8, 0 },
217 { 1, -3, -6, 46, 78, 20, -8, 0 },
218 { 1, -2, -7, 41, 79, 24, -8, 0 },
219 { 1, -2, -7, 37, 80, 28, -8, -1 }
220 }, { /* 104857 < Ratio <= 131072 (~8:4) */
221 { -3, 0, 35, 64, 35, 0, -3, 0 },
222 { -3, -1, 32, 64, 38, 1, -3, 0 },
223 { -2, -2, 29, 63, 41, 2, -3, 0 },
224 { -2, -3, 27, 63, 43, 4, -4, 0 },
225 { -2, -3, 24, 61, 46, 6, -4, 0 },
226 { -2, -3, 21, 60, 49, 7, -4, 0 },
227 { -1, -4, 19, 59, 51, 9, -4, -1 },
228 { -1, -4, 16, 57, 53, 12, -4, -1 },
229 { -1, -4, 14, 55, 55, 14, -4, -1 },
230 { -1, -4, 12, 53, 57, 16, -4, -1 },
231 { -1, -4, 9, 51, 59, 19, -4, -1 },
232 { 0, -4, 7, 49, 60, 21, -3, -2 },
233 { 0, -4, 6, 46, 61, 24, -3, -2 },
234 { 0, -4, 4, 43, 63, 27, -3, -2 },
235 { 0, -3, 2, 41, 63, 29, -2, -2 },
236 { 0, -3, 1, 38, 64, 32, -1, -3 }
237 }, { /* 131072 < Ratio <= 174762 (~8:3) */
238 { -1, 8, 33, 48, 33, 8, -1, 0 },
239 { -1, 7, 31, 49, 35, 9, -1, -1 },
240 { -1, 6, 30, 49, 36, 10, -1, -1 },
241 { -1, 5, 28, 48, 38, 12, -1, -1 },
242 { -1, 4, 26, 48, 39, 13, 0, -1 },
243 { -1, 3, 24, 47, 41, 15, 0, -1 },
244 { -1, 2, 23, 47, 42, 16, 0, -1 },
245 { -1, 2, 21, 45, 43, 18, 1, -1 },
246 { -1, 1, 19, 45, 45, 19, 1, -1 },
247 { -1, 1, 18, 43, 45, 21, 2, -1 },
248 { -1, 0, 16, 42, 47, 23, 2, -1 },
249 { -1, 0, 15, 41, 47, 24, 3, -1 },
250 { -1, 0, 13, 39, 48, 26, 4, -1 },
251 { -1, -1, 12, 38, 48, 28, 5, -1 },
252 { -1, -1, 10, 36, 49, 30, 6, -1 },
253 { -1, -1, 9, 35, 49, 31, 7, -1 }
254 }, { /* 174762 < Ratio <= 262144 (~8:2) */
255 { 2, 13, 30, 38, 30, 13, 2, 0 },
256 { 2, 12, 29, 38, 30, 14, 3, 0 },
257 { 2, 11, 28, 38, 31, 15, 3, 0 },
258 { 2, 10, 26, 38, 32, 16, 4, 0 },
259 { 1, 10, 26, 37, 33, 17, 4, 0 },
260 { 1, 9, 24, 37, 34, 18, 5, 0 },
261 { 1, 8, 24, 37, 34, 19, 5, 0 },
262 { 1, 7, 22, 36, 35, 20, 6, 1 },
263 { 1, 6, 21, 36, 36, 21, 6, 1 },
264 { 1, 6, 20, 35, 36, 22, 7, 1 },
265 { 0, 5, 19, 34, 37, 24, 8, 1 },
266 { 0, 5, 18, 34, 37, 24, 9, 1 },
267 { 0, 4, 17, 33, 37, 26, 10, 1 },
268 { 0, 4, 16, 32, 38, 26, 10, 2 },
269 { 0, 3, 15, 31, 38, 28, 11, 2 },
270 { 0, 3, 14, 30, 38, 29, 12, 2 }
274 /* 4-tap Filter Coefficient */
275 static const int v_coef_4t[GSC_COEF_RATIO][GSC_COEF_ATTR][GSC_COEF_V_4T] = {
276 { /* Ratio <= 65536 (~8:8) */
293 }, { /* 65536 < Ratio <= 74898 (~8:7) */
310 }, { /* 74898 < Ratio <= 87381 (~8:6) */
327 }, { /* 87381 < Ratio <= 104857 (~8:5) */
344 }, { /* 104857 < Ratio <= 131072 (~8:4) */
361 }, { /* 131072 < Ratio <= 174762 (~8:3) */
378 }, { /* 174762 < Ratio <= 262144 (~8:2) */
398 static int gsc_sw_reset(struct gsc_context *ctx)
401 int count = GSC_RESET_TIMEOUT;
404 cfg = (GSC_SW_RESET_SRESET);
405 gsc_write(cfg, GSC_SW_RESET);
407 /* wait s/w reset complete */
409 cfg = gsc_read(GSC_SW_RESET);
412 usleep_range(1000, 2000);
416 DRM_ERROR("failed to reset gsc h/w.\n");
421 cfg = gsc_read(GSC_IN_BASE_ADDR_Y_MASK);
422 cfg |= (GSC_IN_BASE_ADDR_MASK |
423 GSC_IN_BASE_ADDR_PINGPONG(0));
424 gsc_write(cfg, GSC_IN_BASE_ADDR_Y_MASK);
425 gsc_write(cfg, GSC_IN_BASE_ADDR_CB_MASK);
426 gsc_write(cfg, GSC_IN_BASE_ADDR_CR_MASK);
428 cfg = gsc_read(GSC_OUT_BASE_ADDR_Y_MASK);
429 cfg |= (GSC_OUT_BASE_ADDR_MASK |
430 GSC_OUT_BASE_ADDR_PINGPONG(0));
431 gsc_write(cfg, GSC_OUT_BASE_ADDR_Y_MASK);
432 gsc_write(cfg, GSC_OUT_BASE_ADDR_CB_MASK);
433 gsc_write(cfg, GSC_OUT_BASE_ADDR_CR_MASK);
438 static void gsc_set_gscblk_fimd_wb(struct gsc_context *ctx, bool enable)
442 gscblk_cfg = readl(SYSREG_GSCBLK_CFG1);
445 gscblk_cfg |= GSC_BLK_DISP1WB_DEST(ctx->id) |
446 GSC_BLK_GSCL_WB_IN_SRC_SEL(ctx->id) |
447 GSC_BLK_SW_RESET_WB_DEST(ctx->id);
449 gscblk_cfg |= GSC_BLK_PXLASYNC_LO_MASK_WB(ctx->id);
451 writel(gscblk_cfg, SYSREG_GSCBLK_CFG1);
454 static void gsc_handle_irq(struct gsc_context *ctx, bool enable,
455 bool overflow, bool done)
459 DRM_DEBUG_KMS("enable[%d]overflow[%d]level[%d]\n",
460 enable, overflow, done);
462 cfg = gsc_read(GSC_IRQ);
463 cfg |= (GSC_IRQ_OR_MASK | GSC_IRQ_FRMDONE_MASK);
466 cfg |= GSC_IRQ_ENABLE;
468 cfg &= ~GSC_IRQ_ENABLE;
471 cfg &= ~GSC_IRQ_OR_MASK;
473 cfg |= GSC_IRQ_OR_MASK;
476 cfg &= ~GSC_IRQ_FRMDONE_MASK;
478 cfg |= GSC_IRQ_FRMDONE_MASK;
480 gsc_write(cfg, GSC_IRQ);
484 static int gsc_src_set_fmt(struct device *dev, u32 fmt)
486 struct gsc_context *ctx = get_gsc_context(dev);
487 struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
490 DRM_DEBUG_KMS("fmt[0x%x]\n", fmt);
492 cfg = gsc_read(GSC_IN_CON);
493 cfg &= ~(GSC_IN_RGB_TYPE_MASK | GSC_IN_YUV422_1P_ORDER_MASK |
494 GSC_IN_CHROMA_ORDER_MASK | GSC_IN_FORMAT_MASK |
495 GSC_IN_TILE_TYPE_MASK | GSC_IN_TILE_MODE |
496 GSC_IN_CHROM_STRIDE_SEL_MASK | GSC_IN_RB_SWAP_MASK);
499 case DRM_FORMAT_RGB565:
500 cfg |= GSC_IN_RGB565;
502 case DRM_FORMAT_XRGB8888:
503 cfg |= GSC_IN_XRGB8888;
505 case DRM_FORMAT_BGRX8888:
506 cfg |= (GSC_IN_XRGB8888 | GSC_IN_RB_SWAP);
508 case DRM_FORMAT_YUYV:
509 cfg |= (GSC_IN_YUV422_1P |
510 GSC_IN_YUV422_1P_ORDER_LSB_Y |
511 GSC_IN_CHROMA_ORDER_CBCR);
513 case DRM_FORMAT_YVYU:
514 cfg |= (GSC_IN_YUV422_1P |
515 GSC_IN_YUV422_1P_ORDER_LSB_Y |
516 GSC_IN_CHROMA_ORDER_CRCB);
518 case DRM_FORMAT_UYVY:
519 cfg |= (GSC_IN_YUV422_1P |
520 GSC_IN_YUV422_1P_OEDER_LSB_C |
521 GSC_IN_CHROMA_ORDER_CBCR);
523 case DRM_FORMAT_VYUY:
524 cfg |= (GSC_IN_YUV422_1P |
525 GSC_IN_YUV422_1P_OEDER_LSB_C |
526 GSC_IN_CHROMA_ORDER_CRCB);
528 case DRM_FORMAT_NV21:
529 case DRM_FORMAT_NV61:
530 cfg |= (GSC_IN_CHROMA_ORDER_CRCB |
533 case DRM_FORMAT_YUV422:
534 cfg |= GSC_IN_YUV422_3P;
536 case DRM_FORMAT_YUV420:
537 case DRM_FORMAT_YVU420:
538 cfg |= GSC_IN_YUV420_3P;
540 case DRM_FORMAT_NV12:
541 case DRM_FORMAT_NV16:
542 cfg |= (GSC_IN_CHROMA_ORDER_CBCR |
546 dev_err(ippdrv->dev, "inavlid target yuv order 0x%x.\n", fmt);
550 gsc_write(cfg, GSC_IN_CON);
555 static int gsc_src_set_transf(struct device *dev,
556 enum drm_exynos_degree degree,
557 enum drm_exynos_flip flip, bool *swap)
559 struct gsc_context *ctx = get_gsc_context(dev);
560 struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
563 DRM_DEBUG_KMS("degree[%d]flip[0x%x]\n", degree, flip);
565 cfg = gsc_read(GSC_IN_CON);
566 cfg &= ~GSC_IN_ROT_MASK;
569 case EXYNOS_DRM_DEGREE_0:
570 if (flip & EXYNOS_DRM_FLIP_VERTICAL)
571 cfg |= GSC_IN_ROT_XFLIP;
572 if (flip & EXYNOS_DRM_FLIP_HORIZONTAL)
573 cfg |= GSC_IN_ROT_YFLIP;
575 case EXYNOS_DRM_DEGREE_90:
576 if (flip & EXYNOS_DRM_FLIP_VERTICAL)
577 cfg |= GSC_IN_ROT_90_XFLIP;
578 else if (flip & EXYNOS_DRM_FLIP_HORIZONTAL)
579 cfg |= GSC_IN_ROT_90_YFLIP;
581 cfg |= GSC_IN_ROT_90;
583 case EXYNOS_DRM_DEGREE_180:
584 cfg |= GSC_IN_ROT_180;
586 case EXYNOS_DRM_DEGREE_270:
587 cfg |= GSC_IN_ROT_270;
590 dev_err(ippdrv->dev, "inavlid degree value %d.\n", degree);
594 gsc_write(cfg, GSC_IN_CON);
596 ctx->rotation = (cfg & GSC_IN_ROT_90) ? 1 : 0;
597 *swap = ctx->rotation;
602 static int gsc_src_set_size(struct device *dev, int swap,
603 struct drm_exynos_pos *pos, struct drm_exynos_sz *sz)
605 struct gsc_context *ctx = get_gsc_context(dev);
606 struct drm_exynos_pos img_pos = *pos;
607 struct gsc_scaler *sc = &ctx->sc;
610 DRM_DEBUG_KMS("swap[%d]x[%d]y[%d]w[%d]h[%d]\n",
611 swap, pos->x, pos->y, pos->w, pos->h);
619 cfg = (GSC_SRCIMG_OFFSET_X(img_pos.x) |
620 GSC_SRCIMG_OFFSET_Y(img_pos.y));
621 gsc_write(cfg, GSC_SRCIMG_OFFSET);
624 cfg = (GSC_CROPPED_WIDTH(img_pos.w) |
625 GSC_CROPPED_HEIGHT(img_pos.h));
626 gsc_write(cfg, GSC_CROPPED_SIZE);
628 DRM_DEBUG_KMS("hsize[%d]vsize[%d]\n", sz->hsize, sz->vsize);
631 cfg = gsc_read(GSC_SRCIMG_SIZE);
632 cfg &= ~(GSC_SRCIMG_HEIGHT_MASK |
633 GSC_SRCIMG_WIDTH_MASK);
635 cfg |= (GSC_SRCIMG_WIDTH(sz->hsize) |
636 GSC_SRCIMG_HEIGHT(sz->vsize));
638 gsc_write(cfg, GSC_SRCIMG_SIZE);
640 cfg = gsc_read(GSC_IN_CON);
641 cfg &= ~GSC_IN_RGB_TYPE_MASK;
643 DRM_DEBUG_KMS("width[%d]range[%d]\n", pos->w, sc->range);
645 if (pos->w >= GSC_WIDTH_ITU_709)
647 cfg |= GSC_IN_RGB_HD_WIDE;
649 cfg |= GSC_IN_RGB_HD_NARROW;
652 cfg |= GSC_IN_RGB_SD_WIDE;
654 cfg |= GSC_IN_RGB_SD_NARROW;
656 gsc_write(cfg, GSC_IN_CON);
661 static int gsc_src_set_buf_seq(struct gsc_context *ctx, u32 buf_id,
662 enum drm_exynos_ipp_buf_type buf_type)
664 struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
667 u32 mask = 0x00000001 << buf_id;
669 DRM_DEBUG_KMS("buf_id[%d]buf_type[%d]\n", buf_id, buf_type);
671 /* mask register set */
672 cfg = gsc_read(GSC_IN_BASE_ADDR_Y_MASK);
675 case IPP_BUF_ENQUEUE:
678 case IPP_BUF_DEQUEUE:
682 dev_err(ippdrv->dev, "invalid buf ctrl parameter.\n");
688 cfg |= masked << buf_id;
689 gsc_write(cfg, GSC_IN_BASE_ADDR_Y_MASK);
690 gsc_write(cfg, GSC_IN_BASE_ADDR_CB_MASK);
691 gsc_write(cfg, GSC_IN_BASE_ADDR_CR_MASK);
696 static int gsc_src_set_addr(struct device *dev,
697 struct drm_exynos_ipp_buf_info *buf_info, u32 buf_id,
698 enum drm_exynos_ipp_buf_type buf_type)
700 struct gsc_context *ctx = get_gsc_context(dev);
701 struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
702 struct drm_exynos_ipp_cmd_node *c_node = ippdrv->c_node;
703 struct drm_exynos_ipp_property *property;
706 DRM_ERROR("failed to get c_node.\n");
710 property = &c_node->property;
712 DRM_DEBUG_KMS("prop_id[%d]buf_id[%d]buf_type[%d]\n",
713 property->prop_id, buf_id, buf_type);
715 if (buf_id > GSC_MAX_SRC) {
716 dev_info(ippdrv->dev, "inavlid buf_id %d.\n", buf_id);
720 /* address register set */
722 case IPP_BUF_ENQUEUE:
723 gsc_write(buf_info->base[EXYNOS_DRM_PLANAR_Y],
724 GSC_IN_BASE_ADDR_Y(buf_id));
725 gsc_write(buf_info->base[EXYNOS_DRM_PLANAR_CB],
726 GSC_IN_BASE_ADDR_CB(buf_id));
727 gsc_write(buf_info->base[EXYNOS_DRM_PLANAR_CR],
728 GSC_IN_BASE_ADDR_CR(buf_id));
730 case IPP_BUF_DEQUEUE:
731 gsc_write(0x0, GSC_IN_BASE_ADDR_Y(buf_id));
732 gsc_write(0x0, GSC_IN_BASE_ADDR_CB(buf_id));
733 gsc_write(0x0, GSC_IN_BASE_ADDR_CR(buf_id));
740 return gsc_src_set_buf_seq(ctx, buf_id, buf_type);
743 static struct exynos_drm_ipp_ops gsc_src_ops = {
744 .set_fmt = gsc_src_set_fmt,
745 .set_transf = gsc_src_set_transf,
746 .set_size = gsc_src_set_size,
747 .set_addr = gsc_src_set_addr,
750 static int gsc_dst_set_fmt(struct device *dev, u32 fmt)
752 struct gsc_context *ctx = get_gsc_context(dev);
753 struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
756 DRM_DEBUG_KMS("fmt[0x%x]\n", fmt);
758 cfg = gsc_read(GSC_OUT_CON);
759 cfg &= ~(GSC_OUT_RGB_TYPE_MASK | GSC_OUT_YUV422_1P_ORDER_MASK |
760 GSC_OUT_CHROMA_ORDER_MASK | GSC_OUT_FORMAT_MASK |
761 GSC_OUT_CHROM_STRIDE_SEL_MASK | GSC_OUT_RB_SWAP_MASK |
762 GSC_OUT_GLOBAL_ALPHA_MASK);
765 case DRM_FORMAT_RGB565:
766 cfg |= GSC_OUT_RGB565;
768 case DRM_FORMAT_XRGB8888:
769 cfg |= GSC_OUT_XRGB8888;
771 case DRM_FORMAT_BGRX8888:
772 cfg |= (GSC_OUT_XRGB8888 | GSC_OUT_RB_SWAP);
774 case DRM_FORMAT_YUYV:
775 cfg |= (GSC_OUT_YUV422_1P |
776 GSC_OUT_YUV422_1P_ORDER_LSB_Y |
777 GSC_OUT_CHROMA_ORDER_CBCR);
779 case DRM_FORMAT_YVYU:
780 cfg |= (GSC_OUT_YUV422_1P |
781 GSC_OUT_YUV422_1P_ORDER_LSB_Y |
782 GSC_OUT_CHROMA_ORDER_CRCB);
784 case DRM_FORMAT_UYVY:
785 cfg |= (GSC_OUT_YUV422_1P |
786 GSC_OUT_YUV422_1P_OEDER_LSB_C |
787 GSC_OUT_CHROMA_ORDER_CBCR);
789 case DRM_FORMAT_VYUY:
790 cfg |= (GSC_OUT_YUV422_1P |
791 GSC_OUT_YUV422_1P_OEDER_LSB_C |
792 GSC_OUT_CHROMA_ORDER_CRCB);
794 case DRM_FORMAT_NV21:
795 case DRM_FORMAT_NV61:
796 cfg |= (GSC_OUT_CHROMA_ORDER_CRCB | GSC_OUT_YUV420_2P);
798 case DRM_FORMAT_YUV422:
799 case DRM_FORMAT_YUV420:
800 case DRM_FORMAT_YVU420:
801 cfg |= GSC_OUT_YUV420_3P;
803 case DRM_FORMAT_NV12:
804 case DRM_FORMAT_NV16:
805 cfg |= (GSC_OUT_CHROMA_ORDER_CBCR |
809 dev_err(ippdrv->dev, "inavlid target yuv order 0x%x.\n", fmt);
813 gsc_write(cfg, GSC_OUT_CON);
818 static int gsc_dst_set_transf(struct device *dev,
819 enum drm_exynos_degree degree,
820 enum drm_exynos_flip flip, bool *swap)
822 struct gsc_context *ctx = get_gsc_context(dev);
823 struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
826 DRM_DEBUG_KMS("degree[%d]flip[0x%x]\n", degree, flip);
828 cfg = gsc_read(GSC_IN_CON);
829 cfg &= ~GSC_IN_ROT_MASK;
832 case EXYNOS_DRM_DEGREE_0:
833 if (flip & EXYNOS_DRM_FLIP_VERTICAL)
834 cfg |= GSC_IN_ROT_XFLIP;
835 if (flip & EXYNOS_DRM_FLIP_HORIZONTAL)
836 cfg |= GSC_IN_ROT_YFLIP;
838 case EXYNOS_DRM_DEGREE_90:
839 if (flip & EXYNOS_DRM_FLIP_VERTICAL)
840 cfg |= GSC_IN_ROT_90_XFLIP;
841 else if (flip & EXYNOS_DRM_FLIP_HORIZONTAL)
842 cfg |= GSC_IN_ROT_90_YFLIP;
844 cfg |= GSC_IN_ROT_90;
846 case EXYNOS_DRM_DEGREE_180:
847 cfg |= GSC_IN_ROT_180;
849 case EXYNOS_DRM_DEGREE_270:
850 cfg |= GSC_IN_ROT_270;
853 dev_err(ippdrv->dev, "inavlid degree value %d.\n", degree);
857 gsc_write(cfg, GSC_IN_CON);
859 ctx->rotation = (cfg & GSC_IN_ROT_90) ? 1 : 0;
860 *swap = ctx->rotation;
865 static int gsc_get_ratio_shift(u32 src, u32 dst, u32 *ratio)
867 DRM_DEBUG_KMS("src[%d]dst[%d]\n", src, dst);
869 if (src >= dst * 8) {
870 DRM_ERROR("failed to make ratio and shift.\n");
872 } else if (src >= dst * 4)
874 else if (src >= dst * 2)
882 static void gsc_get_prescaler_shfactor(u32 hratio, u32 vratio, u32 *shfactor)
884 if (hratio == 4 && vratio == 4)
886 else if ((hratio == 4 && vratio == 2) ||
887 (hratio == 2 && vratio == 4))
889 else if ((hratio == 4 && vratio == 1) ||
890 (hratio == 1 && vratio == 4) ||
891 (hratio == 2 && vratio == 2))
893 else if (hratio == 1 && vratio == 1)
899 static int gsc_set_prescaler(struct gsc_context *ctx, struct gsc_scaler *sc,
900 struct drm_exynos_pos *src, struct drm_exynos_pos *dst)
902 struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
904 u32 src_w, src_h, dst_w, dst_h;
918 ret = gsc_get_ratio_shift(src_w, dst_w, &sc->pre_hratio);
920 dev_err(ippdrv->dev, "failed to get ratio horizontal.\n");
924 ret = gsc_get_ratio_shift(src_h, dst_h, &sc->pre_vratio);
926 dev_err(ippdrv->dev, "failed to get ratio vertical.\n");
930 DRM_DEBUG_KMS("pre_hratio[%d]pre_vratio[%d]\n",
931 sc->pre_hratio, sc->pre_vratio);
933 sc->main_hratio = (src_w << 16) / dst_w;
934 sc->main_vratio = (src_h << 16) / dst_h;
936 DRM_DEBUG_KMS("main_hratio[%ld]main_vratio[%ld]\n",
937 sc->main_hratio, sc->main_vratio);
939 gsc_get_prescaler_shfactor(sc->pre_hratio, sc->pre_vratio,
942 DRM_DEBUG_KMS("pre_shfactor[%d]\n", sc->pre_shfactor);
944 cfg = (GSC_PRESC_SHFACTOR(sc->pre_shfactor) |
945 GSC_PRESC_H_RATIO(sc->pre_hratio) |
946 GSC_PRESC_V_RATIO(sc->pre_vratio));
947 gsc_write(cfg, GSC_PRE_SCALE_RATIO);
952 static void gsc_set_h_coef(struct gsc_context *ctx, unsigned long main_hratio)
954 int i, j, k, sc_ratio;
956 if (main_hratio <= GSC_SC_UP_MAX_RATIO)
958 else if (main_hratio <= GSC_SC_DOWN_RATIO_7_8)
960 else if (main_hratio <= GSC_SC_DOWN_RATIO_6_8)
962 else if (main_hratio <= GSC_SC_DOWN_RATIO_5_8)
964 else if (main_hratio <= GSC_SC_DOWN_RATIO_4_8)
966 else if (main_hratio <= GSC_SC_DOWN_RATIO_3_8)
971 for (i = 0; i < GSC_COEF_PHASE; i++)
972 for (j = 0; j < GSC_COEF_H_8T; j++)
973 for (k = 0; k < GSC_COEF_DEPTH; k++)
974 gsc_write(h_coef_8t[sc_ratio][i][j],
978 static void gsc_set_v_coef(struct gsc_context *ctx, unsigned long main_vratio)
980 int i, j, k, sc_ratio;
982 if (main_vratio <= GSC_SC_UP_MAX_RATIO)
984 else if (main_vratio <= GSC_SC_DOWN_RATIO_7_8)
986 else if (main_vratio <= GSC_SC_DOWN_RATIO_6_8)
988 else if (main_vratio <= GSC_SC_DOWN_RATIO_5_8)
990 else if (main_vratio <= GSC_SC_DOWN_RATIO_4_8)
992 else if (main_vratio <= GSC_SC_DOWN_RATIO_3_8)
997 for (i = 0; i < GSC_COEF_PHASE; i++)
998 for (j = 0; j < GSC_COEF_V_4T; j++)
999 for (k = 0; k < GSC_COEF_DEPTH; k++)
1000 gsc_write(v_coef_4t[sc_ratio][i][j],
1001 GSC_VCOEF(i, j, k));
1004 static void gsc_set_scaler(struct gsc_context *ctx, struct gsc_scaler *sc)
1008 DRM_DEBUG_KMS("main_hratio[%ld]main_vratio[%ld]\n",
1009 sc->main_hratio, sc->main_vratio);
1011 gsc_set_h_coef(ctx, sc->main_hratio);
1012 cfg = GSC_MAIN_H_RATIO_VALUE(sc->main_hratio);
1013 gsc_write(cfg, GSC_MAIN_H_RATIO);
1015 gsc_set_v_coef(ctx, sc->main_vratio);
1016 cfg = GSC_MAIN_V_RATIO_VALUE(sc->main_vratio);
1017 gsc_write(cfg, GSC_MAIN_V_RATIO);
1020 static int gsc_dst_set_size(struct device *dev, int swap,
1021 struct drm_exynos_pos *pos, struct drm_exynos_sz *sz)
1023 struct gsc_context *ctx = get_gsc_context(dev);
1024 struct drm_exynos_pos img_pos = *pos;
1025 struct gsc_scaler *sc = &ctx->sc;
1028 DRM_DEBUG_KMS("swap[%d]x[%d]y[%d]w[%d]h[%d]\n",
1029 swap, pos->x, pos->y, pos->w, pos->h);
1037 cfg = (GSC_DSTIMG_OFFSET_X(pos->x) |
1038 GSC_DSTIMG_OFFSET_Y(pos->y));
1039 gsc_write(cfg, GSC_DSTIMG_OFFSET);
1042 cfg = (GSC_SCALED_WIDTH(img_pos.w) | GSC_SCALED_HEIGHT(img_pos.h));
1043 gsc_write(cfg, GSC_SCALED_SIZE);
1045 DRM_DEBUG_KMS("hsize[%d]vsize[%d]\n", sz->hsize, sz->vsize);
1048 cfg = gsc_read(GSC_DSTIMG_SIZE);
1049 cfg &= ~(GSC_DSTIMG_HEIGHT_MASK |
1050 GSC_DSTIMG_WIDTH_MASK);
1051 cfg |= (GSC_DSTIMG_WIDTH(sz->hsize) |
1052 GSC_DSTIMG_HEIGHT(sz->vsize));
1053 gsc_write(cfg, GSC_DSTIMG_SIZE);
1055 cfg = gsc_read(GSC_OUT_CON);
1056 cfg &= ~GSC_OUT_RGB_TYPE_MASK;
1058 DRM_DEBUG_KMS("width[%d]range[%d]\n", pos->w, sc->range);
1060 if (pos->w >= GSC_WIDTH_ITU_709)
1062 cfg |= GSC_OUT_RGB_HD_WIDE;
1064 cfg |= GSC_OUT_RGB_HD_NARROW;
1067 cfg |= GSC_OUT_RGB_SD_WIDE;
1069 cfg |= GSC_OUT_RGB_SD_NARROW;
1071 gsc_write(cfg, GSC_OUT_CON);
1076 static int gsc_dst_get_buf_seq(struct gsc_context *ctx)
1078 u32 cfg, i, buf_num = GSC_REG_SZ;
1079 u32 mask = 0x00000001;
1081 cfg = gsc_read(GSC_OUT_BASE_ADDR_Y_MASK);
1083 for (i = 0; i < GSC_REG_SZ; i++)
1084 if (cfg & (mask << i))
1087 DRM_DEBUG_KMS("buf_num[%d]\n", buf_num);
1092 static int gsc_dst_set_buf_seq(struct gsc_context *ctx, u32 buf_id,
1093 enum drm_exynos_ipp_buf_type buf_type)
1095 struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
1098 u32 mask = 0x00000001 << buf_id;
1101 DRM_DEBUG_KMS("buf_id[%d]buf_type[%d]\n", buf_id, buf_type);
1103 mutex_lock(&ctx->lock);
1105 /* mask register set */
1106 cfg = gsc_read(GSC_OUT_BASE_ADDR_Y_MASK);
1109 case IPP_BUF_ENQUEUE:
1112 case IPP_BUF_DEQUEUE:
1116 dev_err(ippdrv->dev, "invalid buf ctrl parameter.\n");
1123 cfg |= masked << buf_id;
1124 gsc_write(cfg, GSC_OUT_BASE_ADDR_Y_MASK);
1125 gsc_write(cfg, GSC_OUT_BASE_ADDR_CB_MASK);
1126 gsc_write(cfg, GSC_OUT_BASE_ADDR_CR_MASK);
1128 /* interrupt enable */
1129 if (buf_type == IPP_BUF_ENQUEUE &&
1130 gsc_dst_get_buf_seq(ctx) >= GSC_BUF_START)
1131 gsc_handle_irq(ctx, true, false, true);
1133 /* interrupt disable */
1134 if (buf_type == IPP_BUF_DEQUEUE &&
1135 gsc_dst_get_buf_seq(ctx) <= GSC_BUF_STOP)
1136 gsc_handle_irq(ctx, false, false, true);
1139 mutex_unlock(&ctx->lock);
1143 static int gsc_dst_set_addr(struct device *dev,
1144 struct drm_exynos_ipp_buf_info *buf_info, u32 buf_id,
1145 enum drm_exynos_ipp_buf_type buf_type)
1147 struct gsc_context *ctx = get_gsc_context(dev);
1148 struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
1149 struct drm_exynos_ipp_cmd_node *c_node = ippdrv->c_node;
1150 struct drm_exynos_ipp_property *property;
1153 DRM_ERROR("failed to get c_node.\n");
1157 property = &c_node->property;
1159 DRM_DEBUG_KMS("prop_id[%d]buf_id[%d]buf_type[%d]\n",
1160 property->prop_id, buf_id, buf_type);
1162 if (buf_id > GSC_MAX_DST) {
1163 dev_info(ippdrv->dev, "inavlid buf_id %d.\n", buf_id);
1167 /* address register set */
1169 case IPP_BUF_ENQUEUE:
1170 gsc_write(buf_info->base[EXYNOS_DRM_PLANAR_Y],
1171 GSC_OUT_BASE_ADDR_Y(buf_id));
1172 gsc_write(buf_info->base[EXYNOS_DRM_PLANAR_CB],
1173 GSC_OUT_BASE_ADDR_CB(buf_id));
1174 gsc_write(buf_info->base[EXYNOS_DRM_PLANAR_CR],
1175 GSC_OUT_BASE_ADDR_CR(buf_id));
1177 case IPP_BUF_DEQUEUE:
1178 gsc_write(0x0, GSC_OUT_BASE_ADDR_Y(buf_id));
1179 gsc_write(0x0, GSC_OUT_BASE_ADDR_CB(buf_id));
1180 gsc_write(0x0, GSC_OUT_BASE_ADDR_CR(buf_id));
1187 return gsc_dst_set_buf_seq(ctx, buf_id, buf_type);
1190 static struct exynos_drm_ipp_ops gsc_dst_ops = {
1191 .set_fmt = gsc_dst_set_fmt,
1192 .set_transf = gsc_dst_set_transf,
1193 .set_size = gsc_dst_set_size,
1194 .set_addr = gsc_dst_set_addr,
1197 static int gsc_clk_ctrl(struct gsc_context *ctx, bool enable)
1199 DRM_DEBUG_KMS("enable[%d]\n", enable);
1202 clk_enable(ctx->gsc_clk);
1203 ctx->suspended = false;
1205 clk_disable(ctx->gsc_clk);
1206 ctx->suspended = true;
1212 static int gsc_get_src_buf_index(struct gsc_context *ctx)
1214 u32 cfg, curr_index, i;
1215 u32 buf_id = GSC_MAX_SRC;
1218 DRM_DEBUG_KMS("gsc id[%d]\n", ctx->id);
1220 cfg = gsc_read(GSC_IN_BASE_ADDR_Y_MASK);
1221 curr_index = GSC_IN_CURR_GET_INDEX(cfg);
1223 for (i = curr_index; i < GSC_MAX_SRC; i++) {
1224 if (!((cfg >> i) & 0x1)) {
1230 if (buf_id == GSC_MAX_SRC) {
1231 DRM_ERROR("failed to get in buffer index.\n");
1235 ret = gsc_src_set_buf_seq(ctx, buf_id, IPP_BUF_DEQUEUE);
1237 DRM_ERROR("failed to dequeue.\n");
1241 DRM_DEBUG_KMS("cfg[0x%x]curr_index[%d]buf_id[%d]\n", cfg,
1242 curr_index, buf_id);
1247 static int gsc_get_dst_buf_index(struct gsc_context *ctx)
1249 u32 cfg, curr_index, i;
1250 u32 buf_id = GSC_MAX_DST;
1253 DRM_DEBUG_KMS("gsc id[%d]\n", ctx->id);
1255 cfg = gsc_read(GSC_OUT_BASE_ADDR_Y_MASK);
1256 curr_index = GSC_OUT_CURR_GET_INDEX(cfg);
1258 for (i = curr_index; i < GSC_MAX_DST; i++) {
1259 if (!((cfg >> i) & 0x1)) {
1265 if (buf_id == GSC_MAX_DST) {
1266 DRM_ERROR("failed to get out buffer index.\n");
1270 ret = gsc_dst_set_buf_seq(ctx, buf_id, IPP_BUF_DEQUEUE);
1272 DRM_ERROR("failed to dequeue.\n");
1276 DRM_DEBUG_KMS("cfg[0x%x]curr_index[%d]buf_id[%d]\n", cfg,
1277 curr_index, buf_id);
1282 static irqreturn_t gsc_irq_handler(int irq, void *dev_id)
1284 struct gsc_context *ctx = dev_id;
1285 struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
1286 struct drm_exynos_ipp_cmd_node *c_node = ippdrv->c_node;
1287 struct drm_exynos_ipp_event_work *event_work =
1290 int buf_id[EXYNOS_DRM_OPS_MAX];
1292 DRM_DEBUG_KMS("gsc id[%d]\n", ctx->id);
1294 status = gsc_read(GSC_IRQ);
1295 if (status & GSC_IRQ_STATUS_OR_IRQ) {
1296 dev_err(ippdrv->dev, "occurred overflow at %d, status 0x%x.\n",
1301 if (status & GSC_IRQ_STATUS_OR_FRM_DONE) {
1302 dev_dbg(ippdrv->dev, "occurred frame done at %d, status 0x%x.\n",
1305 buf_id[EXYNOS_DRM_OPS_SRC] = gsc_get_src_buf_index(ctx);
1306 if (buf_id[EXYNOS_DRM_OPS_SRC] < 0)
1309 buf_id[EXYNOS_DRM_OPS_DST] = gsc_get_dst_buf_index(ctx);
1310 if (buf_id[EXYNOS_DRM_OPS_DST] < 0)
1313 DRM_DEBUG_KMS("buf_id_src[%d]buf_id_dst[%d]\n",
1314 buf_id[EXYNOS_DRM_OPS_SRC], buf_id[EXYNOS_DRM_OPS_DST]);
1316 event_work->ippdrv = ippdrv;
1317 event_work->buf_id[EXYNOS_DRM_OPS_SRC] =
1318 buf_id[EXYNOS_DRM_OPS_SRC];
1319 event_work->buf_id[EXYNOS_DRM_OPS_DST] =
1320 buf_id[EXYNOS_DRM_OPS_DST];
1321 queue_work(ippdrv->event_workq, &event_work->work);
1327 static int gsc_init_prop_list(struct exynos_drm_ippdrv *ippdrv)
1329 struct drm_exynos_ipp_prop_list *prop_list = &ippdrv->prop_list;
1331 prop_list->version = 1;
1332 prop_list->writeback = 1;
1333 prop_list->refresh_min = GSC_REFRESH_MIN;
1334 prop_list->refresh_max = GSC_REFRESH_MAX;
1335 prop_list->flip = (1 << EXYNOS_DRM_FLIP_VERTICAL) |
1336 (1 << EXYNOS_DRM_FLIP_HORIZONTAL);
1337 prop_list->degree = (1 << EXYNOS_DRM_DEGREE_0) |
1338 (1 << EXYNOS_DRM_DEGREE_90) |
1339 (1 << EXYNOS_DRM_DEGREE_180) |
1340 (1 << EXYNOS_DRM_DEGREE_270);
1342 prop_list->crop = 1;
1343 prop_list->crop_max.hsize = GSC_CROP_MAX;
1344 prop_list->crop_max.vsize = GSC_CROP_MAX;
1345 prop_list->crop_min.hsize = GSC_CROP_MIN;
1346 prop_list->crop_min.vsize = GSC_CROP_MIN;
1347 prop_list->scale = 1;
1348 prop_list->scale_max.hsize = GSC_SCALE_MAX;
1349 prop_list->scale_max.vsize = GSC_SCALE_MAX;
1350 prop_list->scale_min.hsize = GSC_SCALE_MIN;
1351 prop_list->scale_min.vsize = GSC_SCALE_MIN;
1356 static inline bool gsc_check_drm_flip(enum drm_exynos_flip flip)
1359 case EXYNOS_DRM_FLIP_NONE:
1360 case EXYNOS_DRM_FLIP_VERTICAL:
1361 case EXYNOS_DRM_FLIP_HORIZONTAL:
1362 case EXYNOS_DRM_FLIP_BOTH:
1365 DRM_DEBUG_KMS("invalid flip\n");
1370 static int gsc_ippdrv_check_property(struct device *dev,
1371 struct drm_exynos_ipp_property *property)
1373 struct gsc_context *ctx = get_gsc_context(dev);
1374 struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
1375 struct drm_exynos_ipp_prop_list *pp = &ippdrv->prop_list;
1376 struct drm_exynos_ipp_config *config;
1377 struct drm_exynos_pos *pos;
1378 struct drm_exynos_sz *sz;
1382 for_each_ipp_ops(i) {
1383 if ((i == EXYNOS_DRM_OPS_SRC) &&
1384 (property->cmd == IPP_CMD_WB))
1387 config = &property->config[i];
1391 /* check for flip */
1392 if (!gsc_check_drm_flip(config->flip)) {
1393 DRM_ERROR("invalid flip.\n");
1397 /* check for degree */
1398 switch (config->degree) {
1399 case EXYNOS_DRM_DEGREE_90:
1400 case EXYNOS_DRM_DEGREE_270:
1403 case EXYNOS_DRM_DEGREE_0:
1404 case EXYNOS_DRM_DEGREE_180:
1408 DRM_ERROR("invalid degree.\n");
1412 /* check for buffer bound */
1413 if ((pos->x + pos->w > sz->hsize) ||
1414 (pos->y + pos->h > sz->vsize)) {
1415 DRM_ERROR("out of buf bound.\n");
1419 /* check for crop */
1420 if ((i == EXYNOS_DRM_OPS_SRC) && (pp->crop)) {
1422 if ((pos->h < pp->crop_min.hsize) ||
1423 (sz->vsize > pp->crop_max.hsize) ||
1424 (pos->w < pp->crop_min.vsize) ||
1425 (sz->hsize > pp->crop_max.vsize)) {
1426 DRM_ERROR("out of crop size.\n");
1430 if ((pos->w < pp->crop_min.hsize) ||
1431 (sz->hsize > pp->crop_max.hsize) ||
1432 (pos->h < pp->crop_min.vsize) ||
1433 (sz->vsize > pp->crop_max.vsize)) {
1434 DRM_ERROR("out of crop size.\n");
1440 /* check for scale */
1441 if ((i == EXYNOS_DRM_OPS_DST) && (pp->scale)) {
1443 if ((pos->h < pp->scale_min.hsize) ||
1444 (sz->vsize > pp->scale_max.hsize) ||
1445 (pos->w < pp->scale_min.vsize) ||
1446 (sz->hsize > pp->scale_max.vsize)) {
1447 DRM_ERROR("out of scale size.\n");
1451 if ((pos->w < pp->scale_min.hsize) ||
1452 (sz->hsize > pp->scale_max.hsize) ||
1453 (pos->h < pp->scale_min.vsize) ||
1454 (sz->vsize > pp->scale_max.vsize)) {
1455 DRM_ERROR("out of scale size.\n");
1465 for_each_ipp_ops(i) {
1466 if ((i == EXYNOS_DRM_OPS_SRC) &&
1467 (property->cmd == IPP_CMD_WB))
1470 config = &property->config[i];
1474 DRM_ERROR("[%s]f[%d]r[%d]pos[%d %d %d %d]sz[%d %d]\n",
1475 i ? "dst" : "src", config->flip, config->degree,
1476 pos->x, pos->y, pos->w, pos->h,
1477 sz->hsize, sz->vsize);
1484 static int gsc_ippdrv_reset(struct device *dev)
1486 struct gsc_context *ctx = get_gsc_context(dev);
1487 struct gsc_scaler *sc = &ctx->sc;
1490 /* reset h/w block */
1491 ret = gsc_sw_reset(ctx);
1493 dev_err(dev, "failed to reset hardware.\n");
1497 /* scaler setting */
1498 memset(&ctx->sc, 0x0, sizeof(ctx->sc));
1504 static int gsc_ippdrv_start(struct device *dev, enum drm_exynos_ipp_cmd cmd)
1506 struct gsc_context *ctx = get_gsc_context(dev);
1507 struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
1508 struct drm_exynos_ipp_cmd_node *c_node = ippdrv->c_node;
1509 struct drm_exynos_ipp_property *property;
1510 struct drm_exynos_ipp_config *config;
1511 struct drm_exynos_pos img_pos[EXYNOS_DRM_OPS_MAX];
1512 struct drm_exynos_ipp_set_wb set_wb;
1516 DRM_DEBUG_KMS("cmd[%d]\n", cmd);
1519 DRM_ERROR("failed to get c_node.\n");
1523 property = &c_node->property;
1525 gsc_handle_irq(ctx, true, false, true);
1527 for_each_ipp_ops(i) {
1528 config = &property->config[i];
1529 img_pos[i] = config->pos;
1534 /* enable one shot */
1535 cfg = gsc_read(GSC_ENABLE);
1536 cfg &= ~(GSC_ENABLE_ON_CLEAR_MASK |
1537 GSC_ENABLE_CLK_GATE_MODE_MASK);
1538 cfg |= GSC_ENABLE_ON_CLEAR_ONESHOT;
1539 gsc_write(cfg, GSC_ENABLE);
1541 /* src dma memory */
1542 cfg = gsc_read(GSC_IN_CON);
1543 cfg &= ~(GSC_IN_PATH_MASK | GSC_IN_LOCAL_SEL_MASK);
1544 cfg |= GSC_IN_PATH_MEMORY;
1545 gsc_write(cfg, GSC_IN_CON);
1547 /* dst dma memory */
1548 cfg = gsc_read(GSC_OUT_CON);
1549 cfg |= GSC_OUT_PATH_MEMORY;
1550 gsc_write(cfg, GSC_OUT_CON);
1554 set_wb.refresh = property->refresh_rate;
1555 gsc_set_gscblk_fimd_wb(ctx, set_wb.enable);
1556 exynos_drm_ippnb_send_event(IPP_SET_WRITEBACK, (void *)&set_wb);
1558 /* src local path */
1559 cfg = gsc_read(GSC_IN_CON);
1560 cfg &= ~(GSC_IN_PATH_MASK | GSC_IN_LOCAL_SEL_MASK);
1561 cfg |= (GSC_IN_PATH_LOCAL | GSC_IN_LOCAL_FIMD_WB);
1562 gsc_write(cfg, GSC_IN_CON);
1564 /* dst dma memory */
1565 cfg = gsc_read(GSC_OUT_CON);
1566 cfg |= GSC_OUT_PATH_MEMORY;
1567 gsc_write(cfg, GSC_OUT_CON);
1569 case IPP_CMD_OUTPUT:
1570 /* src dma memory */
1571 cfg = gsc_read(GSC_IN_CON);
1572 cfg &= ~(GSC_IN_PATH_MASK | GSC_IN_LOCAL_SEL_MASK);
1573 cfg |= GSC_IN_PATH_MEMORY;
1574 gsc_write(cfg, GSC_IN_CON);
1576 /* dst local path */
1577 cfg = gsc_read(GSC_OUT_CON);
1578 cfg |= GSC_OUT_PATH_MEMORY;
1579 gsc_write(cfg, GSC_OUT_CON);
1583 dev_err(dev, "invalid operations.\n");
1587 ret = gsc_set_prescaler(ctx, &ctx->sc,
1588 &img_pos[EXYNOS_DRM_OPS_SRC],
1589 &img_pos[EXYNOS_DRM_OPS_DST]);
1591 dev_err(dev, "failed to set precalser.\n");
1595 gsc_set_scaler(ctx, &ctx->sc);
1597 cfg = gsc_read(GSC_ENABLE);
1598 cfg |= GSC_ENABLE_ON;
1599 gsc_write(cfg, GSC_ENABLE);
1604 static void gsc_ippdrv_stop(struct device *dev, enum drm_exynos_ipp_cmd cmd)
1606 struct gsc_context *ctx = get_gsc_context(dev);
1607 struct drm_exynos_ipp_set_wb set_wb = {0, 0};
1610 DRM_DEBUG_KMS("cmd[%d]\n", cmd);
1617 gsc_set_gscblk_fimd_wb(ctx, set_wb.enable);
1618 exynos_drm_ippnb_send_event(IPP_SET_WRITEBACK, (void *)&set_wb);
1620 case IPP_CMD_OUTPUT:
1622 dev_err(dev, "invalid operations.\n");
1626 gsc_handle_irq(ctx, false, false, true);
1628 /* reset sequence */
1629 gsc_write(0xff, GSC_OUT_BASE_ADDR_Y_MASK);
1630 gsc_write(0xff, GSC_OUT_BASE_ADDR_CB_MASK);
1631 gsc_write(0xff, GSC_OUT_BASE_ADDR_CR_MASK);
1633 cfg = gsc_read(GSC_ENABLE);
1634 cfg &= ~GSC_ENABLE_ON;
1635 gsc_write(cfg, GSC_ENABLE);
1638 static int gsc_probe(struct platform_device *pdev)
1640 struct device *dev = &pdev->dev;
1641 struct gsc_context *ctx;
1642 struct resource *res;
1643 struct exynos_drm_ippdrv *ippdrv;
1646 ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
1651 ctx->gsc_clk = devm_clk_get(dev, "gscl");
1652 if (IS_ERR(ctx->gsc_clk)) {
1653 dev_err(dev, "failed to get gsc clock.\n");
1654 return PTR_ERR(ctx->gsc_clk);
1657 /* resource memory */
1658 ctx->regs_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
1659 ctx->regs = devm_ioremap_resource(dev, ctx->regs_res);
1660 if (IS_ERR(ctx->regs))
1661 return PTR_ERR(ctx->regs);
1664 res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
1666 dev_err(dev, "failed to request irq resource.\n");
1670 ctx->irq = res->start;
1671 ret = devm_request_threaded_irq(dev, ctx->irq, NULL, gsc_irq_handler,
1672 IRQF_ONESHOT, "drm_gsc", ctx);
1674 dev_err(dev, "failed to request irq.\n");
1678 /* context initailization */
1681 ippdrv = &ctx->ippdrv;
1683 ippdrv->ops[EXYNOS_DRM_OPS_SRC] = &gsc_src_ops;
1684 ippdrv->ops[EXYNOS_DRM_OPS_DST] = &gsc_dst_ops;
1685 ippdrv->check_property = gsc_ippdrv_check_property;
1686 ippdrv->reset = gsc_ippdrv_reset;
1687 ippdrv->start = gsc_ippdrv_start;
1688 ippdrv->stop = gsc_ippdrv_stop;
1689 ret = gsc_init_prop_list(ippdrv);
1691 dev_err(dev, "failed to init property list.\n");
1695 DRM_DEBUG_KMS("id[%d]ippdrv[0x%x]\n", ctx->id, (int)ippdrv);
1697 mutex_init(&ctx->lock);
1698 platform_set_drvdata(pdev, ctx);
1700 pm_runtime_set_active(dev);
1701 pm_runtime_enable(dev);
1703 ret = exynos_drm_ippdrv_register(ippdrv);
1705 dev_err(dev, "failed to register drm gsc device.\n");
1706 goto err_ippdrv_register;
1709 dev_info(dev, "drm gsc registered successfully.\n");
1713 err_ippdrv_register:
1714 pm_runtime_disable(dev);
1718 static int gsc_remove(struct platform_device *pdev)
1720 struct device *dev = &pdev->dev;
1721 struct gsc_context *ctx = get_gsc_context(dev);
1722 struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
1724 exynos_drm_ippdrv_unregister(ippdrv);
1725 mutex_destroy(&ctx->lock);
1727 pm_runtime_set_suspended(dev);
1728 pm_runtime_disable(dev);
1733 #ifdef CONFIG_PM_SLEEP
1734 static int gsc_suspend(struct device *dev)
1736 struct gsc_context *ctx = get_gsc_context(dev);
1738 DRM_DEBUG_KMS("id[%d]\n", ctx->id);
1740 if (pm_runtime_suspended(dev))
1743 return gsc_clk_ctrl(ctx, false);
1746 static int gsc_resume(struct device *dev)
1748 struct gsc_context *ctx = get_gsc_context(dev);
1750 DRM_DEBUG_KMS("id[%d]\n", ctx->id);
1752 if (!pm_runtime_suspended(dev))
1753 return gsc_clk_ctrl(ctx, true);
1760 static int gsc_runtime_suspend(struct device *dev)
1762 struct gsc_context *ctx = get_gsc_context(dev);
1764 DRM_DEBUG_KMS("id[%d]\n", ctx->id);
1766 return gsc_clk_ctrl(ctx, false);
1769 static int gsc_runtime_resume(struct device *dev)
1771 struct gsc_context *ctx = get_gsc_context(dev);
1773 DRM_DEBUG_KMS("id[%d]\n", ctx->id);
1775 return gsc_clk_ctrl(ctx, true);
1779 static const struct dev_pm_ops gsc_pm_ops = {
1780 SET_SYSTEM_SLEEP_PM_OPS(gsc_suspend, gsc_resume)
1781 SET_RUNTIME_PM_OPS(gsc_runtime_suspend, gsc_runtime_resume, NULL)
1784 struct platform_driver gsc_driver = {
1786 .remove = gsc_remove,
1788 .name = "exynos-drm-gsc",
1789 .owner = THIS_MODULE,