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drm/exynos/fimc: fix source buffer registers
[deliverable/linux.git] / drivers / gpu / drm / exynos / exynos_drm_fimc.c
1 /*
2 * Copyright (C) 2012 Samsung Electronics Co.Ltd
3 * Authors:
4 * Eunchul Kim <chulspro.kim@samsung.com>
5 * Jinyoung Jeon <jy0.jeon@samsung.com>
6 * Sangmin Lee <lsmin.lee@samsung.com>
7 *
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.
12 *
13 */
14 #include <linux/kernel.h>
15 #include <linux/platform_device.h>
16 #include <linux/mfd/syscon.h>
17 #include <linux/regmap.h>
18 #include <linux/clk.h>
19 #include <linux/pm_runtime.h>
20 #include <linux/of.h>
21 #include <linux/spinlock.h>
22
23 #include <drm/drmP.h>
24 #include <drm/exynos_drm.h>
25 #include "regs-fimc.h"
26 #include "exynos_drm_drv.h"
27 #include "exynos_drm_ipp.h"
28 #include "exynos_drm_fimc.h"
29
30 /*
31 * FIMC stands for Fully Interactive Mobile Camera and
32 * supports image scaler/rotator and input/output DMA operations.
33 * input DMA reads image data from the memory.
34 * output DMA writes image data to memory.
35 * FIMC supports image rotation and image effect functions.
36 *
37 * M2M operation : supports crop/scale/rotation/csc so on.
38 * Memory ----> FIMC H/W ----> Memory.
39 * Writeback operation : supports cloned screen with FIMD.
40 * FIMD ----> FIMC H/W ----> Memory.
41 * Output operation : supports direct display using local path.
42 * Memory ----> FIMC H/W ----> FIMD.
43 */
44
45 /*
46 * TODO
47 * 1. check suspend/resume api if needed.
48 * 2. need to check use case platform_device_id.
49 * 3. check src/dst size with, height.
50 * 4. added check_prepare api for right register.
51 * 5. need to add supported list in prop_list.
52 * 6. check prescaler/scaler optimization.
53 */
54
55 #define FIMC_MAX_DEVS 4
56 #define FIMC_MAX_SRC 2
57 #define FIMC_MAX_DST 32
58 #define FIMC_SHFACTOR 10
59 #define FIMC_BUF_STOP 1
60 #define FIMC_BUF_START 2
61 #define FIMC_WIDTH_ITU_709 1280
62 #define FIMC_REFRESH_MAX 60
63 #define FIMC_REFRESH_MIN 12
64 #define FIMC_CROP_MAX 8192
65 #define FIMC_CROP_MIN 32
66 #define FIMC_SCALE_MAX 4224
67 #define FIMC_SCALE_MIN 32
68
69 #define get_fimc_context(dev) platform_get_drvdata(to_platform_device(dev))
70 #define get_ctx_from_ippdrv(ippdrv) container_of(ippdrv,\
71 struct fimc_context, ippdrv);
72 enum fimc_wb {
73 FIMC_WB_NONE,
74 FIMC_WB_A,
75 FIMC_WB_B,
76 };
77
78 enum {
79 FIMC_CLK_LCLK,
80 FIMC_CLK_GATE,
81 FIMC_CLK_WB_A,
82 FIMC_CLK_WB_B,
83 FIMC_CLK_MUX,
84 FIMC_CLK_PARENT,
85 FIMC_CLKS_MAX
86 };
87
88 static const char * const fimc_clock_names[] = {
89 [FIMC_CLK_LCLK] = "sclk_fimc",
90 [FIMC_CLK_GATE] = "fimc",
91 [FIMC_CLK_WB_A] = "pxl_async0",
92 [FIMC_CLK_WB_B] = "pxl_async1",
93 [FIMC_CLK_MUX] = "mux",
94 [FIMC_CLK_PARENT] = "parent",
95 };
96
97 #define FIMC_DEFAULT_LCLK_FREQUENCY 133000000UL
98
99 /*
100 * A structure of scaler.
101 *
102 * @range: narrow, wide.
103 * @bypass: unused scaler path.
104 * @up_h: horizontal scale up.
105 * @up_v: vertical scale up.
106 * @hratio: horizontal ratio.
107 * @vratio: vertical ratio.
108 */
109 struct fimc_scaler {
110 bool range;
111 bool bypass;
112 bool up_h;
113 bool up_v;
114 u32 hratio;
115 u32 vratio;
116 };
117
118 /*
119 * A structure of scaler capability.
120 *
121 * find user manual table 43-1.
122 * @in_hori: scaler input horizontal size.
123 * @bypass: scaler bypass mode.
124 * @dst_h_wo_rot: target horizontal size without output rotation.
125 * @dst_h_rot: target horizontal size with output rotation.
126 * @rl_w_wo_rot: real width without input rotation.
127 * @rl_h_rot: real height without output rotation.
128 */
129 struct fimc_capability {
130 /* scaler */
131 u32 in_hori;
132 u32 bypass;
133 /* output rotator */
134 u32 dst_h_wo_rot;
135 u32 dst_h_rot;
136 /* input rotator */
137 u32 rl_w_wo_rot;
138 u32 rl_h_rot;
139 };
140
141 /*
142 * A structure of fimc context.
143 *
144 * @ippdrv: prepare initialization using ippdrv.
145 * @regs_res: register resources.
146 * @regs: memory mapped io registers.
147 * @lock: locking of operations.
148 * @clocks: fimc clocks.
149 * @clk_frequency: LCLK clock frequency.
150 * @sysreg: handle to SYSREG block regmap.
151 * @sc: scaler infomations.
152 * @pol: porarity of writeback.
153 * @id: fimc id.
154 * @irq: irq number.
155 * @suspended: qos operations.
156 */
157 struct fimc_context {
158 struct exynos_drm_ippdrv ippdrv;
159 struct resource *regs_res;
160 void __iomem *regs;
161 spinlock_t lock;
162 struct clk *clocks[FIMC_CLKS_MAX];
163 u32 clk_frequency;
164 struct regmap *sysreg;
165 struct fimc_scaler sc;
166 struct exynos_drm_ipp_pol pol;
167 int id;
168 int irq;
169 bool suspended;
170 };
171
172 static u32 fimc_read(struct fimc_context *ctx, u32 reg)
173 {
174 return readl(ctx->regs + reg);
175 }
176
177 static void fimc_write(struct fimc_context *ctx, u32 val, u32 reg)
178 {
179 writel(val, ctx->regs + reg);
180 }
181
182 static void fimc_set_bits(struct fimc_context *ctx, u32 reg, u32 bits)
183 {
184 void __iomem *r = ctx->regs + reg;
185
186 writel(readl(r) | bits, r);
187 }
188
189 static void fimc_clear_bits(struct fimc_context *ctx, u32 reg, u32 bits)
190 {
191 void __iomem *r = ctx->regs + reg;
192
193 writel(readl(r) & ~bits, r);
194 }
195
196 static void fimc_sw_reset(struct fimc_context *ctx)
197 {
198 u32 cfg;
199
200 /* stop dma operation */
201 cfg = fimc_read(ctx, EXYNOS_CISTATUS);
202 if (EXYNOS_CISTATUS_GET_ENVID_STATUS(cfg))
203 fimc_clear_bits(ctx, EXYNOS_MSCTRL, EXYNOS_MSCTRL_ENVID);
204
205 fimc_set_bits(ctx, EXYNOS_CISRCFMT, EXYNOS_CISRCFMT_ITU601_8BIT);
206
207 /* disable image capture */
208 fimc_clear_bits(ctx, EXYNOS_CIIMGCPT,
209 EXYNOS_CIIMGCPT_IMGCPTEN_SC | EXYNOS_CIIMGCPT_IMGCPTEN);
210
211 /* s/w reset */
212 fimc_set_bits(ctx, EXYNOS_CIGCTRL, EXYNOS_CIGCTRL_SWRST);
213
214 /* s/w reset complete */
215 fimc_clear_bits(ctx, EXYNOS_CIGCTRL, EXYNOS_CIGCTRL_SWRST);
216
217 /* reset sequence */
218 fimc_write(ctx, 0x0, EXYNOS_CIFCNTSEQ);
219 }
220
221 static int fimc_set_camblk_fimd0_wb(struct fimc_context *ctx)
222 {
223 return regmap_update_bits(ctx->sysreg, SYSREG_CAMERA_BLK,
224 SYSREG_FIMD0WB_DEST_MASK,
225 ctx->id << SYSREG_FIMD0WB_DEST_SHIFT);
226 }
227
228 static void fimc_set_type_ctrl(struct fimc_context *ctx, enum fimc_wb wb)
229 {
230 u32 cfg;
231
232 DRM_DEBUG_KMS("wb[%d]\n", wb);
233
234 cfg = fimc_read(ctx, EXYNOS_CIGCTRL);
235 cfg &= ~(EXYNOS_CIGCTRL_TESTPATTERN_MASK |
236 EXYNOS_CIGCTRL_SELCAM_ITU_MASK |
237 EXYNOS_CIGCTRL_SELCAM_MIPI_MASK |
238 EXYNOS_CIGCTRL_SELCAM_FIMC_MASK |
239 EXYNOS_CIGCTRL_SELWB_CAMIF_MASK |
240 EXYNOS_CIGCTRL_SELWRITEBACK_MASK);
241
242 switch (wb) {
243 case FIMC_WB_A:
244 cfg |= (EXYNOS_CIGCTRL_SELWRITEBACK_A |
245 EXYNOS_CIGCTRL_SELWB_CAMIF_WRITEBACK);
246 break;
247 case FIMC_WB_B:
248 cfg |= (EXYNOS_CIGCTRL_SELWRITEBACK_B |
249 EXYNOS_CIGCTRL_SELWB_CAMIF_WRITEBACK);
250 break;
251 case FIMC_WB_NONE:
252 default:
253 cfg |= (EXYNOS_CIGCTRL_SELCAM_ITU_A |
254 EXYNOS_CIGCTRL_SELWRITEBACK_A |
255 EXYNOS_CIGCTRL_SELCAM_MIPI_A |
256 EXYNOS_CIGCTRL_SELCAM_FIMC_ITU);
257 break;
258 }
259
260 fimc_write(ctx, cfg, EXYNOS_CIGCTRL);
261 }
262
263 static void fimc_set_polarity(struct fimc_context *ctx,
264 struct exynos_drm_ipp_pol *pol)
265 {
266 u32 cfg;
267
268 DRM_DEBUG_KMS("inv_pclk[%d]inv_vsync[%d]\n",
269 pol->inv_pclk, pol->inv_vsync);
270 DRM_DEBUG_KMS("inv_href[%d]inv_hsync[%d]\n",
271 pol->inv_href, pol->inv_hsync);
272
273 cfg = fimc_read(ctx, EXYNOS_CIGCTRL);
274 cfg &= ~(EXYNOS_CIGCTRL_INVPOLPCLK | EXYNOS_CIGCTRL_INVPOLVSYNC |
275 EXYNOS_CIGCTRL_INVPOLHREF | EXYNOS_CIGCTRL_INVPOLHSYNC);
276
277 if (pol->inv_pclk)
278 cfg |= EXYNOS_CIGCTRL_INVPOLPCLK;
279 if (pol->inv_vsync)
280 cfg |= EXYNOS_CIGCTRL_INVPOLVSYNC;
281 if (pol->inv_href)
282 cfg |= EXYNOS_CIGCTRL_INVPOLHREF;
283 if (pol->inv_hsync)
284 cfg |= EXYNOS_CIGCTRL_INVPOLHSYNC;
285
286 fimc_write(ctx, cfg, EXYNOS_CIGCTRL);
287 }
288
289 static void fimc_handle_jpeg(struct fimc_context *ctx, bool enable)
290 {
291 u32 cfg;
292
293 DRM_DEBUG_KMS("enable[%d]\n", enable);
294
295 cfg = fimc_read(ctx, EXYNOS_CIGCTRL);
296 if (enable)
297 cfg |= EXYNOS_CIGCTRL_CAM_JPEG;
298 else
299 cfg &= ~EXYNOS_CIGCTRL_CAM_JPEG;
300
301 fimc_write(ctx, cfg, EXYNOS_CIGCTRL);
302 }
303
304 static void fimc_mask_irq(struct fimc_context *ctx, bool enable)
305 {
306 u32 cfg;
307
308 DRM_DEBUG_KMS("enable[%d]\n", enable);
309
310 cfg = fimc_read(ctx, EXYNOS_CIGCTRL);
311 if (enable) {
312 cfg &= ~EXYNOS_CIGCTRL_IRQ_OVFEN;
313 cfg |= EXYNOS_CIGCTRL_IRQ_ENABLE | EXYNOS_CIGCTRL_IRQ_LEVEL;
314 } else
315 cfg &= ~EXYNOS_CIGCTRL_IRQ_ENABLE;
316 fimc_write(ctx, cfg, EXYNOS_CIGCTRL);
317 }
318
319 static void fimc_clear_irq(struct fimc_context *ctx)
320 {
321 fimc_set_bits(ctx, EXYNOS_CIGCTRL, EXYNOS_CIGCTRL_IRQ_CLR);
322 }
323
324 static bool fimc_check_ovf(struct fimc_context *ctx)
325 {
326 struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
327 u32 status, flag;
328
329 status = fimc_read(ctx, EXYNOS_CISTATUS);
330 flag = EXYNOS_CISTATUS_OVFIY | EXYNOS_CISTATUS_OVFICB |
331 EXYNOS_CISTATUS_OVFICR;
332
333 DRM_DEBUG_KMS("flag[0x%x]\n", flag);
334
335 if (status & flag) {
336 fimc_set_bits(ctx, EXYNOS_CIWDOFST,
337 EXYNOS_CIWDOFST_CLROVFIY | EXYNOS_CIWDOFST_CLROVFICB |
338 EXYNOS_CIWDOFST_CLROVFICR);
339
340 dev_err(ippdrv->dev, "occurred overflow at %d, status 0x%x.\n",
341 ctx->id, status);
342 return true;
343 }
344
345 return false;
346 }
347
348 static bool fimc_check_frame_end(struct fimc_context *ctx)
349 {
350 u32 cfg;
351
352 cfg = fimc_read(ctx, EXYNOS_CISTATUS);
353
354 DRM_DEBUG_KMS("cfg[0x%x]\n", cfg);
355
356 if (!(cfg & EXYNOS_CISTATUS_FRAMEEND))
357 return false;
358
359 cfg &= ~(EXYNOS_CISTATUS_FRAMEEND);
360 fimc_write(ctx, cfg, EXYNOS_CISTATUS);
361
362 return true;
363 }
364
365 static int fimc_get_buf_id(struct fimc_context *ctx)
366 {
367 u32 cfg;
368 int frame_cnt, buf_id;
369
370 cfg = fimc_read(ctx, EXYNOS_CISTATUS2);
371 frame_cnt = EXYNOS_CISTATUS2_GET_FRAMECOUNT_BEFORE(cfg);
372
373 if (frame_cnt == 0)
374 frame_cnt = EXYNOS_CISTATUS2_GET_FRAMECOUNT_PRESENT(cfg);
375
376 DRM_DEBUG_KMS("present[%d]before[%d]\n",
377 EXYNOS_CISTATUS2_GET_FRAMECOUNT_PRESENT(cfg),
378 EXYNOS_CISTATUS2_GET_FRAMECOUNT_BEFORE(cfg));
379
380 if (frame_cnt == 0) {
381 DRM_ERROR("failed to get frame count.\n");
382 return -EIO;
383 }
384
385 buf_id = frame_cnt - 1;
386 DRM_DEBUG_KMS("buf_id[%d]\n", buf_id);
387
388 return buf_id;
389 }
390
391 static void fimc_handle_lastend(struct fimc_context *ctx, bool enable)
392 {
393 u32 cfg;
394
395 DRM_DEBUG_KMS("enable[%d]\n", enable);
396
397 cfg = fimc_read(ctx, EXYNOS_CIOCTRL);
398 if (enable)
399 cfg |= EXYNOS_CIOCTRL_LASTENDEN;
400 else
401 cfg &= ~EXYNOS_CIOCTRL_LASTENDEN;
402
403 fimc_write(ctx, cfg, EXYNOS_CIOCTRL);
404 }
405
406
407 static int fimc_src_set_fmt_order(struct fimc_context *ctx, u32 fmt)
408 {
409 struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
410 u32 cfg;
411
412 DRM_DEBUG_KMS("fmt[0x%x]\n", fmt);
413
414 /* RGB */
415 cfg = fimc_read(ctx, EXYNOS_CISCCTRL);
416 cfg &= ~EXYNOS_CISCCTRL_INRGB_FMT_RGB_MASK;
417
418 switch (fmt) {
419 case DRM_FORMAT_RGB565:
420 cfg |= EXYNOS_CISCCTRL_INRGB_FMT_RGB565;
421 fimc_write(ctx, cfg, EXYNOS_CISCCTRL);
422 return 0;
423 case DRM_FORMAT_RGB888:
424 case DRM_FORMAT_XRGB8888:
425 cfg |= EXYNOS_CISCCTRL_INRGB_FMT_RGB888;
426 fimc_write(ctx, cfg, EXYNOS_CISCCTRL);
427 return 0;
428 default:
429 /* bypass */
430 break;
431 }
432
433 /* YUV */
434 cfg = fimc_read(ctx, EXYNOS_MSCTRL);
435 cfg &= ~(EXYNOS_MSCTRL_ORDER2P_SHIFT_MASK |
436 EXYNOS_MSCTRL_C_INT_IN_2PLANE |
437 EXYNOS_MSCTRL_ORDER422_YCBYCR);
438
439 switch (fmt) {
440 case DRM_FORMAT_YUYV:
441 cfg |= EXYNOS_MSCTRL_ORDER422_YCBYCR;
442 break;
443 case DRM_FORMAT_YVYU:
444 cfg |= EXYNOS_MSCTRL_ORDER422_YCRYCB;
445 break;
446 case DRM_FORMAT_UYVY:
447 cfg |= EXYNOS_MSCTRL_ORDER422_CBYCRY;
448 break;
449 case DRM_FORMAT_VYUY:
450 case DRM_FORMAT_YUV444:
451 cfg |= EXYNOS_MSCTRL_ORDER422_CRYCBY;
452 break;
453 case DRM_FORMAT_NV21:
454 case DRM_FORMAT_NV61:
455 cfg |= (EXYNOS_MSCTRL_ORDER2P_LSB_CRCB |
456 EXYNOS_MSCTRL_C_INT_IN_2PLANE);
457 break;
458 case DRM_FORMAT_YUV422:
459 case DRM_FORMAT_YUV420:
460 case DRM_FORMAT_YVU420:
461 cfg |= EXYNOS_MSCTRL_C_INT_IN_3PLANE;
462 break;
463 case DRM_FORMAT_NV12:
464 case DRM_FORMAT_NV12MT:
465 case DRM_FORMAT_NV16:
466 cfg |= (EXYNOS_MSCTRL_ORDER2P_LSB_CBCR |
467 EXYNOS_MSCTRL_C_INT_IN_2PLANE);
468 break;
469 default:
470 dev_err(ippdrv->dev, "inavlid source yuv order 0x%x.\n", fmt);
471 return -EINVAL;
472 }
473
474 fimc_write(ctx, cfg, EXYNOS_MSCTRL);
475
476 return 0;
477 }
478
479 static int fimc_src_set_fmt(struct device *dev, u32 fmt)
480 {
481 struct fimc_context *ctx = get_fimc_context(dev);
482 struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
483 u32 cfg;
484
485 DRM_DEBUG_KMS("fmt[0x%x]\n", fmt);
486
487 cfg = fimc_read(ctx, EXYNOS_MSCTRL);
488 cfg &= ~EXYNOS_MSCTRL_INFORMAT_RGB;
489
490 switch (fmt) {
491 case DRM_FORMAT_RGB565:
492 case DRM_FORMAT_RGB888:
493 case DRM_FORMAT_XRGB8888:
494 cfg |= EXYNOS_MSCTRL_INFORMAT_RGB;
495 break;
496 case DRM_FORMAT_YUV444:
497 cfg |= EXYNOS_MSCTRL_INFORMAT_YCBCR420;
498 break;
499 case DRM_FORMAT_YUYV:
500 case DRM_FORMAT_YVYU:
501 case DRM_FORMAT_UYVY:
502 case DRM_FORMAT_VYUY:
503 cfg |= EXYNOS_MSCTRL_INFORMAT_YCBCR422_1PLANE;
504 break;
505 case DRM_FORMAT_NV16:
506 case DRM_FORMAT_NV61:
507 case DRM_FORMAT_YUV422:
508 cfg |= EXYNOS_MSCTRL_INFORMAT_YCBCR422;
509 break;
510 case DRM_FORMAT_YUV420:
511 case DRM_FORMAT_YVU420:
512 case DRM_FORMAT_NV12:
513 case DRM_FORMAT_NV21:
514 case DRM_FORMAT_NV12MT:
515 cfg |= EXYNOS_MSCTRL_INFORMAT_YCBCR420;
516 break;
517 default:
518 dev_err(ippdrv->dev, "inavlid source format 0x%x.\n", fmt);
519 return -EINVAL;
520 }
521
522 fimc_write(ctx, cfg, EXYNOS_MSCTRL);
523
524 cfg = fimc_read(ctx, EXYNOS_CIDMAPARAM);
525 cfg &= ~EXYNOS_CIDMAPARAM_R_MODE_MASK;
526
527 if (fmt == DRM_FORMAT_NV12MT)
528 cfg |= EXYNOS_CIDMAPARAM_R_MODE_64X32;
529 else
530 cfg |= EXYNOS_CIDMAPARAM_R_MODE_LINEAR;
531
532 fimc_write(ctx, cfg, EXYNOS_CIDMAPARAM);
533
534 return fimc_src_set_fmt_order(ctx, fmt);
535 }
536
537 static int fimc_src_set_transf(struct device *dev,
538 enum drm_exynos_degree degree,
539 enum drm_exynos_flip flip, bool *swap)
540 {
541 struct fimc_context *ctx = get_fimc_context(dev);
542 struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
543 u32 cfg1, cfg2;
544
545 DRM_DEBUG_KMS("degree[%d]flip[0x%x]\n", degree, flip);
546
547 cfg1 = fimc_read(ctx, EXYNOS_MSCTRL);
548 cfg1 &= ~(EXYNOS_MSCTRL_FLIP_X_MIRROR |
549 EXYNOS_MSCTRL_FLIP_Y_MIRROR);
550
551 cfg2 = fimc_read(ctx, EXYNOS_CITRGFMT);
552 cfg2 &= ~EXYNOS_CITRGFMT_INROT90_CLOCKWISE;
553
554 switch (degree) {
555 case EXYNOS_DRM_DEGREE_0:
556 if (flip & EXYNOS_DRM_FLIP_VERTICAL)
557 cfg1 |= EXYNOS_MSCTRL_FLIP_X_MIRROR;
558 if (flip & EXYNOS_DRM_FLIP_HORIZONTAL)
559 cfg1 |= EXYNOS_MSCTRL_FLIP_Y_MIRROR;
560 break;
561 case EXYNOS_DRM_DEGREE_90:
562 cfg2 |= EXYNOS_CITRGFMT_INROT90_CLOCKWISE;
563 if (flip & EXYNOS_DRM_FLIP_VERTICAL)
564 cfg1 |= EXYNOS_MSCTRL_FLIP_X_MIRROR;
565 if (flip & EXYNOS_DRM_FLIP_HORIZONTAL)
566 cfg1 |= EXYNOS_MSCTRL_FLIP_Y_MIRROR;
567 break;
568 case EXYNOS_DRM_DEGREE_180:
569 cfg1 |= (EXYNOS_MSCTRL_FLIP_X_MIRROR |
570 EXYNOS_MSCTRL_FLIP_Y_MIRROR);
571 if (flip & EXYNOS_DRM_FLIP_VERTICAL)
572 cfg1 &= ~EXYNOS_MSCTRL_FLIP_X_MIRROR;
573 if (flip & EXYNOS_DRM_FLIP_HORIZONTAL)
574 cfg1 &= ~EXYNOS_MSCTRL_FLIP_Y_MIRROR;
575 break;
576 case EXYNOS_DRM_DEGREE_270:
577 cfg1 |= (EXYNOS_MSCTRL_FLIP_X_MIRROR |
578 EXYNOS_MSCTRL_FLIP_Y_MIRROR);
579 cfg2 |= EXYNOS_CITRGFMT_INROT90_CLOCKWISE;
580 if (flip & EXYNOS_DRM_FLIP_VERTICAL)
581 cfg1 &= ~EXYNOS_MSCTRL_FLIP_X_MIRROR;
582 if (flip & EXYNOS_DRM_FLIP_HORIZONTAL)
583 cfg1 &= ~EXYNOS_MSCTRL_FLIP_Y_MIRROR;
584 break;
585 default:
586 dev_err(ippdrv->dev, "inavlid degree value %d.\n", degree);
587 return -EINVAL;
588 }
589
590 fimc_write(ctx, cfg1, EXYNOS_MSCTRL);
591 fimc_write(ctx, cfg2, EXYNOS_CITRGFMT);
592 *swap = (cfg2 & EXYNOS_CITRGFMT_INROT90_CLOCKWISE) ? 1 : 0;
593
594 return 0;
595 }
596
597 static int fimc_set_window(struct fimc_context *ctx,
598 struct drm_exynos_pos *pos, struct drm_exynos_sz *sz)
599 {
600 u32 cfg, h1, h2, v1, v2;
601
602 /* cropped image */
603 h1 = pos->x;
604 h2 = sz->hsize - pos->w - pos->x;
605 v1 = pos->y;
606 v2 = sz->vsize - pos->h - pos->y;
607
608 DRM_DEBUG_KMS("x[%d]y[%d]w[%d]h[%d]hsize[%d]vsize[%d]\n",
609 pos->x, pos->y, pos->w, pos->h, sz->hsize, sz->vsize);
610 DRM_DEBUG_KMS("h1[%d]h2[%d]v1[%d]v2[%d]\n", h1, h2, v1, v2);
611
612 /*
613 * set window offset 1, 2 size
614 * check figure 43-21 in user manual
615 */
616 cfg = fimc_read(ctx, EXYNOS_CIWDOFST);
617 cfg &= ~(EXYNOS_CIWDOFST_WINHOROFST_MASK |
618 EXYNOS_CIWDOFST_WINVEROFST_MASK);
619 cfg |= (EXYNOS_CIWDOFST_WINHOROFST(h1) |
620 EXYNOS_CIWDOFST_WINVEROFST(v1));
621 cfg |= EXYNOS_CIWDOFST_WINOFSEN;
622 fimc_write(ctx, cfg, EXYNOS_CIWDOFST);
623
624 cfg = (EXYNOS_CIWDOFST2_WINHOROFST2(h2) |
625 EXYNOS_CIWDOFST2_WINVEROFST2(v2));
626 fimc_write(ctx, cfg, EXYNOS_CIWDOFST2);
627
628 return 0;
629 }
630
631 static int fimc_src_set_size(struct device *dev, int swap,
632 struct drm_exynos_pos *pos, struct drm_exynos_sz *sz)
633 {
634 struct fimc_context *ctx = get_fimc_context(dev);
635 struct drm_exynos_pos img_pos = *pos;
636 struct drm_exynos_sz img_sz = *sz;
637 u32 cfg;
638
639 DRM_DEBUG_KMS("swap[%d]hsize[%d]vsize[%d]\n",
640 swap, sz->hsize, sz->vsize);
641
642 /* original size */
643 cfg = (EXYNOS_ORGISIZE_HORIZONTAL(img_sz.hsize) |
644 EXYNOS_ORGISIZE_VERTICAL(img_sz.vsize));
645
646 fimc_write(ctx, cfg, EXYNOS_ORGISIZE);
647
648 DRM_DEBUG_KMS("x[%d]y[%d]w[%d]h[%d]\n", pos->x, pos->y, pos->w, pos->h);
649
650 if (swap) {
651 img_pos.w = pos->h;
652 img_pos.h = pos->w;
653 img_sz.hsize = sz->vsize;
654 img_sz.vsize = sz->hsize;
655 }
656
657 /* set input DMA image size */
658 cfg = fimc_read(ctx, EXYNOS_CIREAL_ISIZE);
659 cfg &= ~(EXYNOS_CIREAL_ISIZE_HEIGHT_MASK |
660 EXYNOS_CIREAL_ISIZE_WIDTH_MASK);
661 cfg |= (EXYNOS_CIREAL_ISIZE_WIDTH(img_pos.w) |
662 EXYNOS_CIREAL_ISIZE_HEIGHT(img_pos.h));
663 fimc_write(ctx, cfg, EXYNOS_CIREAL_ISIZE);
664
665 /*
666 * set input FIFO image size
667 * for now, we support only ITU601 8 bit mode
668 */
669 cfg = (EXYNOS_CISRCFMT_ITU601_8BIT |
670 EXYNOS_CISRCFMT_SOURCEHSIZE(img_sz.hsize) |
671 EXYNOS_CISRCFMT_SOURCEVSIZE(img_sz.vsize));
672 fimc_write(ctx, cfg, EXYNOS_CISRCFMT);
673
674 /* offset Y(RGB), Cb, Cr */
675 cfg = (EXYNOS_CIIYOFF_HORIZONTAL(img_pos.x) |
676 EXYNOS_CIIYOFF_VERTICAL(img_pos.y));
677 fimc_write(ctx, cfg, EXYNOS_CIIYOFF);
678 cfg = (EXYNOS_CIICBOFF_HORIZONTAL(img_pos.x) |
679 EXYNOS_CIICBOFF_VERTICAL(img_pos.y));
680 fimc_write(ctx, cfg, EXYNOS_CIICBOFF);
681 cfg = (EXYNOS_CIICROFF_HORIZONTAL(img_pos.x) |
682 EXYNOS_CIICROFF_VERTICAL(img_pos.y));
683 fimc_write(ctx, cfg, EXYNOS_CIICROFF);
684
685 return fimc_set_window(ctx, &img_pos, &img_sz);
686 }
687
688 static int fimc_src_set_addr(struct device *dev,
689 struct drm_exynos_ipp_buf_info *buf_info, u32 buf_id,
690 enum drm_exynos_ipp_buf_type buf_type)
691 {
692 struct fimc_context *ctx = get_fimc_context(dev);
693 struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
694 struct drm_exynos_ipp_cmd_node *c_node = ippdrv->c_node;
695 struct drm_exynos_ipp_property *property;
696 struct drm_exynos_ipp_config *config;
697
698 if (!c_node) {
699 DRM_ERROR("failed to get c_node.\n");
700 return -EINVAL;
701 }
702
703 property = &c_node->property;
704
705 DRM_DEBUG_KMS("prop_id[%d]buf_id[%d]buf_type[%d]\n",
706 property->prop_id, buf_id, buf_type);
707
708 if (buf_id > FIMC_MAX_SRC) {
709 dev_info(ippdrv->dev, "inavlid buf_id %d.\n", buf_id);
710 return -ENOMEM;
711 }
712
713 /* address register set */
714 switch (buf_type) {
715 case IPP_BUF_ENQUEUE:
716 config = &property->config[EXYNOS_DRM_OPS_SRC];
717 fimc_write(ctx, buf_info->base[EXYNOS_DRM_PLANAR_Y],
718 EXYNOS_CIIYSA0);
719
720 if (config->fmt == DRM_FORMAT_YVU420) {
721 fimc_write(ctx, buf_info->base[EXYNOS_DRM_PLANAR_CR],
722 EXYNOS_CIICBSA0);
723 fimc_write(ctx, buf_info->base[EXYNOS_DRM_PLANAR_CB],
724 EXYNOS_CIICRSA0);
725 } else {
726 fimc_write(ctx, buf_info->base[EXYNOS_DRM_PLANAR_CB],
727 EXYNOS_CIICBSA0);
728 fimc_write(ctx, buf_info->base[EXYNOS_DRM_PLANAR_CR],
729 EXYNOS_CIICRSA0);
730 }
731 break;
732 case IPP_BUF_DEQUEUE:
733 fimc_write(ctx, 0x0, EXYNOS_CIIYSA0);
734 fimc_write(ctx, 0x0, EXYNOS_CIICBSA0);
735 fimc_write(ctx, 0x0, EXYNOS_CIICRSA0);
736 break;
737 default:
738 /* bypass */
739 break;
740 }
741
742 return 0;
743 }
744
745 static struct exynos_drm_ipp_ops fimc_src_ops = {
746 .set_fmt = fimc_src_set_fmt,
747 .set_transf = fimc_src_set_transf,
748 .set_size = fimc_src_set_size,
749 .set_addr = fimc_src_set_addr,
750 };
751
752 static int fimc_dst_set_fmt_order(struct fimc_context *ctx, u32 fmt)
753 {
754 struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
755 u32 cfg;
756
757 DRM_DEBUG_KMS("fmt[0x%x]\n", fmt);
758
759 /* RGB */
760 cfg = fimc_read(ctx, EXYNOS_CISCCTRL);
761 cfg &= ~EXYNOS_CISCCTRL_OUTRGB_FMT_RGB_MASK;
762
763 switch (fmt) {
764 case DRM_FORMAT_RGB565:
765 cfg |= EXYNOS_CISCCTRL_OUTRGB_FMT_RGB565;
766 fimc_write(ctx, cfg, EXYNOS_CISCCTRL);
767 return 0;
768 case DRM_FORMAT_RGB888:
769 cfg |= EXYNOS_CISCCTRL_OUTRGB_FMT_RGB888;
770 fimc_write(ctx, cfg, EXYNOS_CISCCTRL);
771 return 0;
772 case DRM_FORMAT_XRGB8888:
773 cfg |= (EXYNOS_CISCCTRL_OUTRGB_FMT_RGB888 |
774 EXYNOS_CISCCTRL_EXTRGB_EXTENSION);
775 fimc_write(ctx, cfg, EXYNOS_CISCCTRL);
776 break;
777 default:
778 /* bypass */
779 break;
780 }
781
782 /* YUV */
783 cfg = fimc_read(ctx, EXYNOS_CIOCTRL);
784 cfg &= ~(EXYNOS_CIOCTRL_ORDER2P_MASK |
785 EXYNOS_CIOCTRL_ORDER422_MASK |
786 EXYNOS_CIOCTRL_YCBCR_PLANE_MASK);
787
788 switch (fmt) {
789 case DRM_FORMAT_XRGB8888:
790 cfg |= EXYNOS_CIOCTRL_ALPHA_OUT;
791 break;
792 case DRM_FORMAT_YUYV:
793 cfg |= EXYNOS_CIOCTRL_ORDER422_YCBYCR;
794 break;
795 case DRM_FORMAT_YVYU:
796 cfg |= EXYNOS_CIOCTRL_ORDER422_YCRYCB;
797 break;
798 case DRM_FORMAT_UYVY:
799 cfg |= EXYNOS_CIOCTRL_ORDER422_CBYCRY;
800 break;
801 case DRM_FORMAT_VYUY:
802 cfg |= EXYNOS_CIOCTRL_ORDER422_CRYCBY;
803 break;
804 case DRM_FORMAT_NV21:
805 case DRM_FORMAT_NV61:
806 cfg |= EXYNOS_CIOCTRL_ORDER2P_LSB_CRCB;
807 cfg |= EXYNOS_CIOCTRL_YCBCR_2PLANE;
808 break;
809 case DRM_FORMAT_YUV422:
810 case DRM_FORMAT_YUV420:
811 case DRM_FORMAT_YVU420:
812 cfg |= EXYNOS_CIOCTRL_YCBCR_3PLANE;
813 break;
814 case DRM_FORMAT_NV12:
815 case DRM_FORMAT_NV12MT:
816 case DRM_FORMAT_NV16:
817 cfg |= EXYNOS_CIOCTRL_ORDER2P_LSB_CBCR;
818 cfg |= EXYNOS_CIOCTRL_YCBCR_2PLANE;
819 break;
820 default:
821 dev_err(ippdrv->dev, "inavlid target yuv order 0x%x.\n", fmt);
822 return -EINVAL;
823 }
824
825 fimc_write(ctx, cfg, EXYNOS_CIOCTRL);
826
827 return 0;
828 }
829
830 static int fimc_dst_set_fmt(struct device *dev, u32 fmt)
831 {
832 struct fimc_context *ctx = get_fimc_context(dev);
833 struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
834 u32 cfg;
835
836 DRM_DEBUG_KMS("fmt[0x%x]\n", fmt);
837
838 cfg = fimc_read(ctx, EXYNOS_CIEXTEN);
839
840 if (fmt == DRM_FORMAT_AYUV) {
841 cfg |= EXYNOS_CIEXTEN_YUV444_OUT;
842 fimc_write(ctx, cfg, EXYNOS_CIEXTEN);
843 } else {
844 cfg &= ~EXYNOS_CIEXTEN_YUV444_OUT;
845 fimc_write(ctx, cfg, EXYNOS_CIEXTEN);
846
847 cfg = fimc_read(ctx, EXYNOS_CITRGFMT);
848 cfg &= ~EXYNOS_CITRGFMT_OUTFORMAT_MASK;
849
850 switch (fmt) {
851 case DRM_FORMAT_RGB565:
852 case DRM_FORMAT_RGB888:
853 case DRM_FORMAT_XRGB8888:
854 cfg |= EXYNOS_CITRGFMT_OUTFORMAT_RGB;
855 break;
856 case DRM_FORMAT_YUYV:
857 case DRM_FORMAT_YVYU:
858 case DRM_FORMAT_UYVY:
859 case DRM_FORMAT_VYUY:
860 cfg |= EXYNOS_CITRGFMT_OUTFORMAT_YCBCR422_1PLANE;
861 break;
862 case DRM_FORMAT_NV16:
863 case DRM_FORMAT_NV61:
864 case DRM_FORMAT_YUV422:
865 cfg |= EXYNOS_CITRGFMT_OUTFORMAT_YCBCR422;
866 break;
867 case DRM_FORMAT_YUV420:
868 case DRM_FORMAT_YVU420:
869 case DRM_FORMAT_NV12:
870 case DRM_FORMAT_NV12MT:
871 case DRM_FORMAT_NV21:
872 cfg |= EXYNOS_CITRGFMT_OUTFORMAT_YCBCR420;
873 break;
874 default:
875 dev_err(ippdrv->dev, "inavlid target format 0x%x.\n",
876 fmt);
877 return -EINVAL;
878 }
879
880 fimc_write(ctx, cfg, EXYNOS_CITRGFMT);
881 }
882
883 cfg = fimc_read(ctx, EXYNOS_CIDMAPARAM);
884 cfg &= ~EXYNOS_CIDMAPARAM_W_MODE_MASK;
885
886 if (fmt == DRM_FORMAT_NV12MT)
887 cfg |= EXYNOS_CIDMAPARAM_W_MODE_64X32;
888 else
889 cfg |= EXYNOS_CIDMAPARAM_W_MODE_LINEAR;
890
891 fimc_write(ctx, cfg, EXYNOS_CIDMAPARAM);
892
893 return fimc_dst_set_fmt_order(ctx, fmt);
894 }
895
896 static int fimc_dst_set_transf(struct device *dev,
897 enum drm_exynos_degree degree,
898 enum drm_exynos_flip flip, bool *swap)
899 {
900 struct fimc_context *ctx = get_fimc_context(dev);
901 struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
902 u32 cfg;
903
904 DRM_DEBUG_KMS("degree[%d]flip[0x%x]\n", degree, flip);
905
906 cfg = fimc_read(ctx, EXYNOS_CITRGFMT);
907 cfg &= ~EXYNOS_CITRGFMT_FLIP_MASK;
908 cfg &= ~EXYNOS_CITRGFMT_OUTROT90_CLOCKWISE;
909
910 switch (degree) {
911 case EXYNOS_DRM_DEGREE_0:
912 if (flip & EXYNOS_DRM_FLIP_VERTICAL)
913 cfg |= EXYNOS_CITRGFMT_FLIP_X_MIRROR;
914 if (flip & EXYNOS_DRM_FLIP_HORIZONTAL)
915 cfg |= EXYNOS_CITRGFMT_FLIP_Y_MIRROR;
916 break;
917 case EXYNOS_DRM_DEGREE_90:
918 cfg |= EXYNOS_CITRGFMT_OUTROT90_CLOCKWISE;
919 if (flip & EXYNOS_DRM_FLIP_VERTICAL)
920 cfg |= EXYNOS_CITRGFMT_FLIP_X_MIRROR;
921 if (flip & EXYNOS_DRM_FLIP_HORIZONTAL)
922 cfg |= EXYNOS_CITRGFMT_FLIP_Y_MIRROR;
923 break;
924 case EXYNOS_DRM_DEGREE_180:
925 cfg |= (EXYNOS_CITRGFMT_FLIP_X_MIRROR |
926 EXYNOS_CITRGFMT_FLIP_Y_MIRROR);
927 if (flip & EXYNOS_DRM_FLIP_VERTICAL)
928 cfg &= ~EXYNOS_CITRGFMT_FLIP_X_MIRROR;
929 if (flip & EXYNOS_DRM_FLIP_HORIZONTAL)
930 cfg &= ~EXYNOS_CITRGFMT_FLIP_Y_MIRROR;
931 break;
932 case EXYNOS_DRM_DEGREE_270:
933 cfg |= (EXYNOS_CITRGFMT_OUTROT90_CLOCKWISE |
934 EXYNOS_CITRGFMT_FLIP_X_MIRROR |
935 EXYNOS_CITRGFMT_FLIP_Y_MIRROR);
936 if (flip & EXYNOS_DRM_FLIP_VERTICAL)
937 cfg &= ~EXYNOS_CITRGFMT_FLIP_X_MIRROR;
938 if (flip & EXYNOS_DRM_FLIP_HORIZONTAL)
939 cfg &= ~EXYNOS_CITRGFMT_FLIP_Y_MIRROR;
940 break;
941 default:
942 dev_err(ippdrv->dev, "inavlid degree value %d.\n", degree);
943 return -EINVAL;
944 }
945
946 fimc_write(ctx, cfg, EXYNOS_CITRGFMT);
947 *swap = (cfg & EXYNOS_CITRGFMT_OUTROT90_CLOCKWISE) ? 1 : 0;
948
949 return 0;
950 }
951
952 static int fimc_set_prescaler(struct fimc_context *ctx, struct fimc_scaler *sc,
953 struct drm_exynos_pos *src, struct drm_exynos_pos *dst)
954 {
955 struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
956 u32 cfg, cfg_ext, shfactor;
957 u32 pre_dst_width, pre_dst_height;
958 u32 hfactor, vfactor;
959 int ret = 0;
960 u32 src_w, src_h, dst_w, dst_h;
961
962 cfg_ext = fimc_read(ctx, EXYNOS_CITRGFMT);
963 if (cfg_ext & EXYNOS_CITRGFMT_INROT90_CLOCKWISE) {
964 src_w = src->h;
965 src_h = src->w;
966 } else {
967 src_w = src->w;
968 src_h = src->h;
969 }
970
971 if (cfg_ext & EXYNOS_CITRGFMT_OUTROT90_CLOCKWISE) {
972 dst_w = dst->h;
973 dst_h = dst->w;
974 } else {
975 dst_w = dst->w;
976 dst_h = dst->h;
977 }
978
979 /* fimc_ippdrv_check_property assures that dividers are not null */
980 hfactor = fls(src_w / dst_w / 2);
981 if (hfactor > FIMC_SHFACTOR / 2) {
982 dev_err(ippdrv->dev, "failed to get ratio horizontal.\n");
983 return -EINVAL;
984 }
985
986 vfactor = fls(src_h / dst_h / 2);
987 if (vfactor > FIMC_SHFACTOR / 2) {
988 dev_err(ippdrv->dev, "failed to get ratio vertical.\n");
989 return -EINVAL;
990 }
991
992 pre_dst_width = src_w >> hfactor;
993 pre_dst_height = src_h >> vfactor;
994 DRM_DEBUG_KMS("pre_dst_width[%d]pre_dst_height[%d]\n",
995 pre_dst_width, pre_dst_height);
996 DRM_DEBUG_KMS("hfactor[%d]vfactor[%d]\n", hfactor, vfactor);
997
998 sc->hratio = (src_w << 14) / (dst_w << hfactor);
999 sc->vratio = (src_h << 14) / (dst_h << vfactor);
1000 sc->up_h = (dst_w >= src_w) ? true : false;
1001 sc->up_v = (dst_h >= src_h) ? true : false;
1002 DRM_DEBUG_KMS("hratio[%d]vratio[%d]up_h[%d]up_v[%d]\n",
1003 sc->hratio, sc->vratio, sc->up_h, sc->up_v);
1004
1005 shfactor = FIMC_SHFACTOR - (hfactor + vfactor);
1006 DRM_DEBUG_KMS("shfactor[%d]\n", shfactor);
1007
1008 cfg = (EXYNOS_CISCPRERATIO_SHFACTOR(shfactor) |
1009 EXYNOS_CISCPRERATIO_PREHORRATIO(1 << hfactor) |
1010 EXYNOS_CISCPRERATIO_PREVERRATIO(1 << vfactor));
1011 fimc_write(ctx, cfg, EXYNOS_CISCPRERATIO);
1012
1013 cfg = (EXYNOS_CISCPREDST_PREDSTWIDTH(pre_dst_width) |
1014 EXYNOS_CISCPREDST_PREDSTHEIGHT(pre_dst_height));
1015 fimc_write(ctx, cfg, EXYNOS_CISCPREDST);
1016
1017 return ret;
1018 }
1019
1020 static void fimc_set_scaler(struct fimc_context *ctx, struct fimc_scaler *sc)
1021 {
1022 u32 cfg, cfg_ext;
1023
1024 DRM_DEBUG_KMS("range[%d]bypass[%d]up_h[%d]up_v[%d]\n",
1025 sc->range, sc->bypass, sc->up_h, sc->up_v);
1026 DRM_DEBUG_KMS("hratio[%d]vratio[%d]\n",
1027 sc->hratio, sc->vratio);
1028
1029 cfg = fimc_read(ctx, EXYNOS_CISCCTRL);
1030 cfg &= ~(EXYNOS_CISCCTRL_SCALERBYPASS |
1031 EXYNOS_CISCCTRL_SCALEUP_H | EXYNOS_CISCCTRL_SCALEUP_V |
1032 EXYNOS_CISCCTRL_MAIN_V_RATIO_MASK |
1033 EXYNOS_CISCCTRL_MAIN_H_RATIO_MASK |
1034 EXYNOS_CISCCTRL_CSCR2Y_WIDE |
1035 EXYNOS_CISCCTRL_CSCY2R_WIDE);
1036
1037 if (sc->range)
1038 cfg |= (EXYNOS_CISCCTRL_CSCR2Y_WIDE |
1039 EXYNOS_CISCCTRL_CSCY2R_WIDE);
1040 if (sc->bypass)
1041 cfg |= EXYNOS_CISCCTRL_SCALERBYPASS;
1042 if (sc->up_h)
1043 cfg |= EXYNOS_CISCCTRL_SCALEUP_H;
1044 if (sc->up_v)
1045 cfg |= EXYNOS_CISCCTRL_SCALEUP_V;
1046
1047 cfg |= (EXYNOS_CISCCTRL_MAINHORRATIO((sc->hratio >> 6)) |
1048 EXYNOS_CISCCTRL_MAINVERRATIO((sc->vratio >> 6)));
1049 fimc_write(ctx, cfg, EXYNOS_CISCCTRL);
1050
1051 cfg_ext = fimc_read(ctx, EXYNOS_CIEXTEN);
1052 cfg_ext &= ~EXYNOS_CIEXTEN_MAINHORRATIO_EXT_MASK;
1053 cfg_ext &= ~EXYNOS_CIEXTEN_MAINVERRATIO_EXT_MASK;
1054 cfg_ext |= (EXYNOS_CIEXTEN_MAINHORRATIO_EXT(sc->hratio) |
1055 EXYNOS_CIEXTEN_MAINVERRATIO_EXT(sc->vratio));
1056 fimc_write(ctx, cfg_ext, EXYNOS_CIEXTEN);
1057 }
1058
1059 static int fimc_dst_set_size(struct device *dev, int swap,
1060 struct drm_exynos_pos *pos, struct drm_exynos_sz *sz)
1061 {
1062 struct fimc_context *ctx = get_fimc_context(dev);
1063 struct drm_exynos_pos img_pos = *pos;
1064 struct drm_exynos_sz img_sz = *sz;
1065 u32 cfg;
1066
1067 DRM_DEBUG_KMS("swap[%d]hsize[%d]vsize[%d]\n",
1068 swap, sz->hsize, sz->vsize);
1069
1070 /* original size */
1071 cfg = (EXYNOS_ORGOSIZE_HORIZONTAL(img_sz.hsize) |
1072 EXYNOS_ORGOSIZE_VERTICAL(img_sz.vsize));
1073
1074 fimc_write(ctx, cfg, EXYNOS_ORGOSIZE);
1075
1076 DRM_DEBUG_KMS("x[%d]y[%d]w[%d]h[%d]\n", pos->x, pos->y, pos->w, pos->h);
1077
1078 /* CSC ITU */
1079 cfg = fimc_read(ctx, EXYNOS_CIGCTRL);
1080 cfg &= ~EXYNOS_CIGCTRL_CSC_MASK;
1081
1082 if (sz->hsize >= FIMC_WIDTH_ITU_709)
1083 cfg |= EXYNOS_CIGCTRL_CSC_ITU709;
1084 else
1085 cfg |= EXYNOS_CIGCTRL_CSC_ITU601;
1086
1087 fimc_write(ctx, cfg, EXYNOS_CIGCTRL);
1088
1089 if (swap) {
1090 img_pos.w = pos->h;
1091 img_pos.h = pos->w;
1092 img_sz.hsize = sz->vsize;
1093 img_sz.vsize = sz->hsize;
1094 }
1095
1096 /* target image size */
1097 cfg = fimc_read(ctx, EXYNOS_CITRGFMT);
1098 cfg &= ~(EXYNOS_CITRGFMT_TARGETH_MASK |
1099 EXYNOS_CITRGFMT_TARGETV_MASK);
1100 cfg |= (EXYNOS_CITRGFMT_TARGETHSIZE(img_pos.w) |
1101 EXYNOS_CITRGFMT_TARGETVSIZE(img_pos.h));
1102 fimc_write(ctx, cfg, EXYNOS_CITRGFMT);
1103
1104 /* target area */
1105 cfg = EXYNOS_CITAREA_TARGET_AREA(img_pos.w * img_pos.h);
1106 fimc_write(ctx, cfg, EXYNOS_CITAREA);
1107
1108 /* offset Y(RGB), Cb, Cr */
1109 cfg = (EXYNOS_CIOYOFF_HORIZONTAL(img_pos.x) |
1110 EXYNOS_CIOYOFF_VERTICAL(img_pos.y));
1111 fimc_write(ctx, cfg, EXYNOS_CIOYOFF);
1112 cfg = (EXYNOS_CIOCBOFF_HORIZONTAL(img_pos.x) |
1113 EXYNOS_CIOCBOFF_VERTICAL(img_pos.y));
1114 fimc_write(ctx, cfg, EXYNOS_CIOCBOFF);
1115 cfg = (EXYNOS_CIOCROFF_HORIZONTAL(img_pos.x) |
1116 EXYNOS_CIOCROFF_VERTICAL(img_pos.y));
1117 fimc_write(ctx, cfg, EXYNOS_CIOCROFF);
1118
1119 return 0;
1120 }
1121
1122 static void fimc_dst_set_buf_seq(struct fimc_context *ctx, u32 buf_id,
1123 enum drm_exynos_ipp_buf_type buf_type)
1124 {
1125 unsigned long flags;
1126 u32 buf_num;
1127 u32 cfg;
1128
1129 DRM_DEBUG_KMS("buf_id[%d]buf_type[%d]\n", buf_id, buf_type);
1130
1131 spin_lock_irqsave(&ctx->lock, flags);
1132
1133 cfg = fimc_read(ctx, EXYNOS_CIFCNTSEQ);
1134
1135 if (buf_type == IPP_BUF_ENQUEUE)
1136 cfg |= (1 << buf_id);
1137 else
1138 cfg &= ~(1 << buf_id);
1139
1140 fimc_write(ctx, cfg, EXYNOS_CIFCNTSEQ);
1141
1142 buf_num = hweight32(cfg);
1143
1144 if (buf_type == IPP_BUF_ENQUEUE && buf_num >= FIMC_BUF_START)
1145 fimc_mask_irq(ctx, true);
1146 else if (buf_type == IPP_BUF_DEQUEUE && buf_num <= FIMC_BUF_STOP)
1147 fimc_mask_irq(ctx, false);
1148
1149 spin_unlock_irqrestore(&ctx->lock, flags);
1150 }
1151
1152 static int fimc_dst_set_addr(struct device *dev,
1153 struct drm_exynos_ipp_buf_info *buf_info, u32 buf_id,
1154 enum drm_exynos_ipp_buf_type buf_type)
1155 {
1156 struct fimc_context *ctx = get_fimc_context(dev);
1157 struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
1158 struct drm_exynos_ipp_cmd_node *c_node = ippdrv->c_node;
1159 struct drm_exynos_ipp_property *property;
1160 struct drm_exynos_ipp_config *config;
1161
1162 if (!c_node) {
1163 DRM_ERROR("failed to get c_node.\n");
1164 return -EINVAL;
1165 }
1166
1167 property = &c_node->property;
1168
1169 DRM_DEBUG_KMS("prop_id[%d]buf_id[%d]buf_type[%d]\n",
1170 property->prop_id, buf_id, buf_type);
1171
1172 if (buf_id > FIMC_MAX_DST) {
1173 dev_info(ippdrv->dev, "inavlid buf_id %d.\n", buf_id);
1174 return -ENOMEM;
1175 }
1176
1177 /* address register set */
1178 switch (buf_type) {
1179 case IPP_BUF_ENQUEUE:
1180 config = &property->config[EXYNOS_DRM_OPS_DST];
1181
1182 fimc_write(ctx, buf_info->base[EXYNOS_DRM_PLANAR_Y],
1183 EXYNOS_CIOYSA(buf_id));
1184
1185 if (config->fmt == DRM_FORMAT_YVU420) {
1186 fimc_write(ctx, buf_info->base[EXYNOS_DRM_PLANAR_CR],
1187 EXYNOS_CIOCBSA(buf_id));
1188 fimc_write(ctx, buf_info->base[EXYNOS_DRM_PLANAR_CB],
1189 EXYNOS_CIOCRSA(buf_id));
1190 } else {
1191 fimc_write(ctx, buf_info->base[EXYNOS_DRM_PLANAR_CB],
1192 EXYNOS_CIOCBSA(buf_id));
1193 fimc_write(ctx, buf_info->base[EXYNOS_DRM_PLANAR_CR],
1194 EXYNOS_CIOCRSA(buf_id));
1195 }
1196 break;
1197 case IPP_BUF_DEQUEUE:
1198 fimc_write(ctx, 0x0, EXYNOS_CIOYSA(buf_id));
1199 fimc_write(ctx, 0x0, EXYNOS_CIOCBSA(buf_id));
1200 fimc_write(ctx, 0x0, EXYNOS_CIOCRSA(buf_id));
1201 break;
1202 default:
1203 /* bypass */
1204 break;
1205 }
1206
1207 fimc_dst_set_buf_seq(ctx, buf_id, buf_type);
1208
1209 return 0;
1210 }
1211
1212 static struct exynos_drm_ipp_ops fimc_dst_ops = {
1213 .set_fmt = fimc_dst_set_fmt,
1214 .set_transf = fimc_dst_set_transf,
1215 .set_size = fimc_dst_set_size,
1216 .set_addr = fimc_dst_set_addr,
1217 };
1218
1219 static int fimc_clk_ctrl(struct fimc_context *ctx, bool enable)
1220 {
1221 DRM_DEBUG_KMS("enable[%d]\n", enable);
1222
1223 if (enable) {
1224 clk_prepare_enable(ctx->clocks[FIMC_CLK_GATE]);
1225 clk_prepare_enable(ctx->clocks[FIMC_CLK_WB_A]);
1226 ctx->suspended = false;
1227 } else {
1228 clk_disable_unprepare(ctx->clocks[FIMC_CLK_GATE]);
1229 clk_disable_unprepare(ctx->clocks[FIMC_CLK_WB_A]);
1230 ctx->suspended = true;
1231 }
1232
1233 return 0;
1234 }
1235
1236 static irqreturn_t fimc_irq_handler(int irq, void *dev_id)
1237 {
1238 struct fimc_context *ctx = dev_id;
1239 struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
1240 struct drm_exynos_ipp_cmd_node *c_node = ippdrv->c_node;
1241 struct drm_exynos_ipp_event_work *event_work =
1242 c_node->event_work;
1243 int buf_id;
1244
1245 DRM_DEBUG_KMS("fimc id[%d]\n", ctx->id);
1246
1247 fimc_clear_irq(ctx);
1248 if (fimc_check_ovf(ctx))
1249 return IRQ_NONE;
1250
1251 if (!fimc_check_frame_end(ctx))
1252 return IRQ_NONE;
1253
1254 buf_id = fimc_get_buf_id(ctx);
1255 if (buf_id < 0)
1256 return IRQ_HANDLED;
1257
1258 DRM_DEBUG_KMS("buf_id[%d]\n", buf_id);
1259
1260 fimc_dst_set_buf_seq(ctx, buf_id, IPP_BUF_DEQUEUE);
1261
1262 event_work->ippdrv = ippdrv;
1263 event_work->buf_id[EXYNOS_DRM_OPS_DST] = buf_id;
1264 queue_work(ippdrv->event_workq, &event_work->work);
1265
1266 return IRQ_HANDLED;
1267 }
1268
1269 static int fimc_init_prop_list(struct exynos_drm_ippdrv *ippdrv)
1270 {
1271 struct drm_exynos_ipp_prop_list *prop_list = &ippdrv->prop_list;
1272
1273 prop_list->version = 1;
1274 prop_list->writeback = 1;
1275 prop_list->refresh_min = FIMC_REFRESH_MIN;
1276 prop_list->refresh_max = FIMC_REFRESH_MAX;
1277 prop_list->flip = (1 << EXYNOS_DRM_FLIP_NONE) |
1278 (1 << EXYNOS_DRM_FLIP_VERTICAL) |
1279 (1 << EXYNOS_DRM_FLIP_HORIZONTAL);
1280 prop_list->degree = (1 << EXYNOS_DRM_DEGREE_0) |
1281 (1 << EXYNOS_DRM_DEGREE_90) |
1282 (1 << EXYNOS_DRM_DEGREE_180) |
1283 (1 << EXYNOS_DRM_DEGREE_270);
1284 prop_list->csc = 1;
1285 prop_list->crop = 1;
1286 prop_list->crop_max.hsize = FIMC_CROP_MAX;
1287 prop_list->crop_max.vsize = FIMC_CROP_MAX;
1288 prop_list->crop_min.hsize = FIMC_CROP_MIN;
1289 prop_list->crop_min.vsize = FIMC_CROP_MIN;
1290 prop_list->scale = 1;
1291 prop_list->scale_max.hsize = FIMC_SCALE_MAX;
1292 prop_list->scale_max.vsize = FIMC_SCALE_MAX;
1293 prop_list->scale_min.hsize = FIMC_SCALE_MIN;
1294 prop_list->scale_min.vsize = FIMC_SCALE_MIN;
1295
1296 return 0;
1297 }
1298
1299 static inline bool fimc_check_drm_flip(enum drm_exynos_flip flip)
1300 {
1301 switch (flip) {
1302 case EXYNOS_DRM_FLIP_NONE:
1303 case EXYNOS_DRM_FLIP_VERTICAL:
1304 case EXYNOS_DRM_FLIP_HORIZONTAL:
1305 case EXYNOS_DRM_FLIP_BOTH:
1306 return true;
1307 default:
1308 DRM_DEBUG_KMS("invalid flip\n");
1309 return false;
1310 }
1311 }
1312
1313 static int fimc_ippdrv_check_property(struct device *dev,
1314 struct drm_exynos_ipp_property *property)
1315 {
1316 struct fimc_context *ctx = get_fimc_context(dev);
1317 struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
1318 struct drm_exynos_ipp_prop_list *pp = &ippdrv->prop_list;
1319 struct drm_exynos_ipp_config *config;
1320 struct drm_exynos_pos *pos;
1321 struct drm_exynos_sz *sz;
1322 bool swap;
1323 int i;
1324
1325 for_each_ipp_ops(i) {
1326 if ((i == EXYNOS_DRM_OPS_SRC) &&
1327 (property->cmd == IPP_CMD_WB))
1328 continue;
1329
1330 config = &property->config[i];
1331 pos = &config->pos;
1332 sz = &config->sz;
1333
1334 /* check for flip */
1335 if (!fimc_check_drm_flip(config->flip)) {
1336 DRM_ERROR("invalid flip.\n");
1337 goto err_property;
1338 }
1339
1340 /* check for degree */
1341 switch (config->degree) {
1342 case EXYNOS_DRM_DEGREE_90:
1343 case EXYNOS_DRM_DEGREE_270:
1344 swap = true;
1345 break;
1346 case EXYNOS_DRM_DEGREE_0:
1347 case EXYNOS_DRM_DEGREE_180:
1348 swap = false;
1349 break;
1350 default:
1351 DRM_ERROR("invalid degree.\n");
1352 goto err_property;
1353 }
1354
1355 /* check for buffer bound */
1356 if ((pos->x + pos->w > sz->hsize) ||
1357 (pos->y + pos->h > sz->vsize)) {
1358 DRM_ERROR("out of buf bound.\n");
1359 goto err_property;
1360 }
1361
1362 /* check for crop */
1363 if ((i == EXYNOS_DRM_OPS_SRC) && (pp->crop)) {
1364 if (swap) {
1365 if ((pos->h < pp->crop_min.hsize) ||
1366 (sz->vsize > pp->crop_max.hsize) ||
1367 (pos->w < pp->crop_min.vsize) ||
1368 (sz->hsize > pp->crop_max.vsize)) {
1369 DRM_ERROR("out of crop size.\n");
1370 goto err_property;
1371 }
1372 } else {
1373 if ((pos->w < pp->crop_min.hsize) ||
1374 (sz->hsize > pp->crop_max.hsize) ||
1375 (pos->h < pp->crop_min.vsize) ||
1376 (sz->vsize > pp->crop_max.vsize)) {
1377 DRM_ERROR("out of crop size.\n");
1378 goto err_property;
1379 }
1380 }
1381 }
1382
1383 /* check for scale */
1384 if ((i == EXYNOS_DRM_OPS_DST) && (pp->scale)) {
1385 if (swap) {
1386 if ((pos->h < pp->scale_min.hsize) ||
1387 (sz->vsize > pp->scale_max.hsize) ||
1388 (pos->w < pp->scale_min.vsize) ||
1389 (sz->hsize > pp->scale_max.vsize)) {
1390 DRM_ERROR("out of scale size.\n");
1391 goto err_property;
1392 }
1393 } else {
1394 if ((pos->w < pp->scale_min.hsize) ||
1395 (sz->hsize > pp->scale_max.hsize) ||
1396 (pos->h < pp->scale_min.vsize) ||
1397 (sz->vsize > pp->scale_max.vsize)) {
1398 DRM_ERROR("out of scale size.\n");
1399 goto err_property;
1400 }
1401 }
1402 }
1403 }
1404
1405 return 0;
1406
1407 err_property:
1408 for_each_ipp_ops(i) {
1409 if ((i == EXYNOS_DRM_OPS_SRC) &&
1410 (property->cmd == IPP_CMD_WB))
1411 continue;
1412
1413 config = &property->config[i];
1414 pos = &config->pos;
1415 sz = &config->sz;
1416
1417 DRM_ERROR("[%s]f[%d]r[%d]pos[%d %d %d %d]sz[%d %d]\n",
1418 i ? "dst" : "src", config->flip, config->degree,
1419 pos->x, pos->y, pos->w, pos->h,
1420 sz->hsize, sz->vsize);
1421 }
1422
1423 return -EINVAL;
1424 }
1425
1426 static void fimc_clear_addr(struct fimc_context *ctx)
1427 {
1428 int i;
1429
1430 for (i = 0; i < FIMC_MAX_SRC; i++) {
1431 fimc_write(ctx, 0, EXYNOS_CIIYSA(i));
1432 fimc_write(ctx, 0, EXYNOS_CIICBSA(i));
1433 fimc_write(ctx, 0, EXYNOS_CIICRSA(i));
1434 }
1435
1436 for (i = 0; i < FIMC_MAX_DST; i++) {
1437 fimc_write(ctx, 0, EXYNOS_CIOYSA(i));
1438 fimc_write(ctx, 0, EXYNOS_CIOCBSA(i));
1439 fimc_write(ctx, 0, EXYNOS_CIOCRSA(i));
1440 }
1441 }
1442
1443 static int fimc_ippdrv_reset(struct device *dev)
1444 {
1445 struct fimc_context *ctx = get_fimc_context(dev);
1446
1447 /* reset h/w block */
1448 fimc_sw_reset(ctx);
1449
1450 /* reset scaler capability */
1451 memset(&ctx->sc, 0x0, sizeof(ctx->sc));
1452
1453 fimc_clear_addr(ctx);
1454
1455 return 0;
1456 }
1457
1458 static int fimc_ippdrv_start(struct device *dev, enum drm_exynos_ipp_cmd cmd)
1459 {
1460 struct fimc_context *ctx = get_fimc_context(dev);
1461 struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
1462 struct drm_exynos_ipp_cmd_node *c_node = ippdrv->c_node;
1463 struct drm_exynos_ipp_property *property;
1464 struct drm_exynos_ipp_config *config;
1465 struct drm_exynos_pos img_pos[EXYNOS_DRM_OPS_MAX];
1466 struct drm_exynos_ipp_set_wb set_wb;
1467 int ret, i;
1468 u32 cfg0, cfg1;
1469
1470 DRM_DEBUG_KMS("cmd[%d]\n", cmd);
1471
1472 if (!c_node) {
1473 DRM_ERROR("failed to get c_node.\n");
1474 return -EINVAL;
1475 }
1476
1477 property = &c_node->property;
1478
1479 fimc_mask_irq(ctx, true);
1480
1481 for_each_ipp_ops(i) {
1482 config = &property->config[i];
1483 img_pos[i] = config->pos;
1484 }
1485
1486 ret = fimc_set_prescaler(ctx, &ctx->sc,
1487 &img_pos[EXYNOS_DRM_OPS_SRC],
1488 &img_pos[EXYNOS_DRM_OPS_DST]);
1489 if (ret) {
1490 dev_err(dev, "failed to set precalser.\n");
1491 return ret;
1492 }
1493
1494 /* If set ture, we can save jpeg about screen */
1495 fimc_handle_jpeg(ctx, false);
1496 fimc_set_scaler(ctx, &ctx->sc);
1497 fimc_set_polarity(ctx, &ctx->pol);
1498
1499 switch (cmd) {
1500 case IPP_CMD_M2M:
1501 fimc_set_type_ctrl(ctx, FIMC_WB_NONE);
1502 fimc_handle_lastend(ctx, false);
1503
1504 /* setup dma */
1505 cfg0 = fimc_read(ctx, EXYNOS_MSCTRL);
1506 cfg0 &= ~EXYNOS_MSCTRL_INPUT_MASK;
1507 cfg0 |= EXYNOS_MSCTRL_INPUT_MEMORY;
1508 fimc_write(ctx, cfg0, EXYNOS_MSCTRL);
1509 break;
1510 case IPP_CMD_WB:
1511 fimc_set_type_ctrl(ctx, FIMC_WB_A);
1512 fimc_handle_lastend(ctx, true);
1513
1514 /* setup FIMD */
1515 ret = fimc_set_camblk_fimd0_wb(ctx);
1516 if (ret < 0) {
1517 dev_err(dev, "camblk setup failed.\n");
1518 return ret;
1519 }
1520
1521 set_wb.enable = 1;
1522 set_wb.refresh = property->refresh_rate;
1523 exynos_drm_ippnb_send_event(IPP_SET_WRITEBACK, (void *)&set_wb);
1524 break;
1525 case IPP_CMD_OUTPUT:
1526 default:
1527 ret = -EINVAL;
1528 dev_err(dev, "invalid operations.\n");
1529 return ret;
1530 }
1531
1532 /* Reset status */
1533 fimc_write(ctx, 0x0, EXYNOS_CISTATUS);
1534
1535 cfg0 = fimc_read(ctx, EXYNOS_CIIMGCPT);
1536 cfg0 &= ~EXYNOS_CIIMGCPT_IMGCPTEN_SC;
1537 cfg0 |= EXYNOS_CIIMGCPT_IMGCPTEN_SC;
1538
1539 /* Scaler */
1540 cfg1 = fimc_read(ctx, EXYNOS_CISCCTRL);
1541 cfg1 &= ~EXYNOS_CISCCTRL_SCAN_MASK;
1542 cfg1 |= (EXYNOS_CISCCTRL_PROGRESSIVE |
1543 EXYNOS_CISCCTRL_SCALERSTART);
1544
1545 fimc_write(ctx, cfg1, EXYNOS_CISCCTRL);
1546
1547 /* Enable image capture*/
1548 cfg0 |= EXYNOS_CIIMGCPT_IMGCPTEN;
1549 fimc_write(ctx, cfg0, EXYNOS_CIIMGCPT);
1550
1551 /* Disable frame end irq */
1552 fimc_clear_bits(ctx, EXYNOS_CIGCTRL, EXYNOS_CIGCTRL_IRQ_END_DISABLE);
1553
1554 fimc_clear_bits(ctx, EXYNOS_CIOCTRL, EXYNOS_CIOCTRL_WEAVE_MASK);
1555
1556 if (cmd == IPP_CMD_M2M)
1557 fimc_set_bits(ctx, EXYNOS_MSCTRL, EXYNOS_MSCTRL_ENVID);
1558
1559 return 0;
1560 }
1561
1562 static void fimc_ippdrv_stop(struct device *dev, enum drm_exynos_ipp_cmd cmd)
1563 {
1564 struct fimc_context *ctx = get_fimc_context(dev);
1565 struct drm_exynos_ipp_set_wb set_wb = {0, 0};
1566 u32 cfg;
1567
1568 DRM_DEBUG_KMS("cmd[%d]\n", cmd);
1569
1570 switch (cmd) {
1571 case IPP_CMD_M2M:
1572 /* Source clear */
1573 cfg = fimc_read(ctx, EXYNOS_MSCTRL);
1574 cfg &= ~EXYNOS_MSCTRL_INPUT_MASK;
1575 cfg &= ~EXYNOS_MSCTRL_ENVID;
1576 fimc_write(ctx, cfg, EXYNOS_MSCTRL);
1577 break;
1578 case IPP_CMD_WB:
1579 exynos_drm_ippnb_send_event(IPP_SET_WRITEBACK, (void *)&set_wb);
1580 break;
1581 case IPP_CMD_OUTPUT:
1582 default:
1583 dev_err(dev, "invalid operations.\n");
1584 break;
1585 }
1586
1587 fimc_mask_irq(ctx, false);
1588
1589 /* reset sequence */
1590 fimc_write(ctx, 0x0, EXYNOS_CIFCNTSEQ);
1591
1592 /* Scaler disable */
1593 fimc_clear_bits(ctx, EXYNOS_CISCCTRL, EXYNOS_CISCCTRL_SCALERSTART);
1594
1595 /* Disable image capture */
1596 fimc_clear_bits(ctx, EXYNOS_CIIMGCPT,
1597 EXYNOS_CIIMGCPT_IMGCPTEN_SC | EXYNOS_CIIMGCPT_IMGCPTEN);
1598
1599 /* Enable frame end irq */
1600 fimc_set_bits(ctx, EXYNOS_CIGCTRL, EXYNOS_CIGCTRL_IRQ_END_DISABLE);
1601 }
1602
1603 static void fimc_put_clocks(struct fimc_context *ctx)
1604 {
1605 int i;
1606
1607 for (i = 0; i < FIMC_CLKS_MAX; i++) {
1608 if (IS_ERR(ctx->clocks[i]))
1609 continue;
1610 clk_put(ctx->clocks[i]);
1611 ctx->clocks[i] = ERR_PTR(-EINVAL);
1612 }
1613 }
1614
1615 static int fimc_setup_clocks(struct fimc_context *ctx)
1616 {
1617 struct device *fimc_dev = ctx->ippdrv.dev;
1618 struct device *dev;
1619 int ret, i;
1620
1621 for (i = 0; i < FIMC_CLKS_MAX; i++)
1622 ctx->clocks[i] = ERR_PTR(-EINVAL);
1623
1624 for (i = 0; i < FIMC_CLKS_MAX; i++) {
1625 if (i == FIMC_CLK_WB_A || i == FIMC_CLK_WB_B)
1626 dev = fimc_dev->parent;
1627 else
1628 dev = fimc_dev;
1629
1630 ctx->clocks[i] = clk_get(dev, fimc_clock_names[i]);
1631 if (IS_ERR(ctx->clocks[i])) {
1632 if (i >= FIMC_CLK_MUX)
1633 break;
1634 ret = PTR_ERR(ctx->clocks[i]);
1635 dev_err(fimc_dev, "failed to get clock: %s\n",
1636 fimc_clock_names[i]);
1637 goto e_clk_free;
1638 }
1639 }
1640
1641 /* Optional FIMC LCLK parent clock setting */
1642 if (!IS_ERR(ctx->clocks[FIMC_CLK_PARENT])) {
1643 ret = clk_set_parent(ctx->clocks[FIMC_CLK_MUX],
1644 ctx->clocks[FIMC_CLK_PARENT]);
1645 if (ret < 0) {
1646 dev_err(fimc_dev, "failed to set parent.\n");
1647 goto e_clk_free;
1648 }
1649 }
1650
1651 ret = clk_set_rate(ctx->clocks[FIMC_CLK_LCLK], ctx->clk_frequency);
1652 if (ret < 0)
1653 goto e_clk_free;
1654
1655 ret = clk_prepare_enable(ctx->clocks[FIMC_CLK_LCLK]);
1656 if (!ret)
1657 return ret;
1658 e_clk_free:
1659 fimc_put_clocks(ctx);
1660 return ret;
1661 }
1662
1663 static int fimc_parse_dt(struct fimc_context *ctx)
1664 {
1665 struct device_node *node = ctx->ippdrv.dev->of_node;
1666
1667 /* Handle only devices that support the LCD Writeback data path */
1668 if (!of_property_read_bool(node, "samsung,lcd-wb"))
1669 return -ENODEV;
1670
1671 if (of_property_read_u32(node, "clock-frequency",
1672 &ctx->clk_frequency))
1673 ctx->clk_frequency = FIMC_DEFAULT_LCLK_FREQUENCY;
1674
1675 ctx->id = of_alias_get_id(node, "fimc");
1676
1677 if (ctx->id < 0) {
1678 dev_err(ctx->ippdrv.dev, "failed to get node alias id.\n");
1679 return -EINVAL;
1680 }
1681
1682 return 0;
1683 }
1684
1685 static int fimc_probe(struct platform_device *pdev)
1686 {
1687 struct device *dev = &pdev->dev;
1688 struct fimc_context *ctx;
1689 struct resource *res;
1690 struct exynos_drm_ippdrv *ippdrv;
1691 int ret;
1692
1693 if (!dev->of_node) {
1694 dev_err(dev, "device tree node not found.\n");
1695 return -ENODEV;
1696 }
1697
1698 ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
1699 if (!ctx)
1700 return -ENOMEM;
1701
1702 ctx->ippdrv.dev = dev;
1703
1704 ret = fimc_parse_dt(ctx);
1705 if (ret < 0)
1706 return ret;
1707
1708 ctx->sysreg = syscon_regmap_lookup_by_phandle(dev->of_node,
1709 "samsung,sysreg");
1710 if (IS_ERR(ctx->sysreg)) {
1711 dev_err(dev, "syscon regmap lookup failed.\n");
1712 return PTR_ERR(ctx->sysreg);
1713 }
1714
1715 /* resource memory */
1716 ctx->regs_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
1717 ctx->regs = devm_ioremap_resource(dev, ctx->regs_res);
1718 if (IS_ERR(ctx->regs))
1719 return PTR_ERR(ctx->regs);
1720
1721 /* resource irq */
1722 res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
1723 if (!res) {
1724 dev_err(dev, "failed to request irq resource.\n");
1725 return -ENOENT;
1726 }
1727
1728 ctx->irq = res->start;
1729 ret = devm_request_threaded_irq(dev, ctx->irq, NULL, fimc_irq_handler,
1730 IRQF_ONESHOT, "drm_fimc", ctx);
1731 if (ret < 0) {
1732 dev_err(dev, "failed to request irq.\n");
1733 return ret;
1734 }
1735
1736 ret = fimc_setup_clocks(ctx);
1737 if (ret < 0)
1738 return ret;
1739
1740 ippdrv = &ctx->ippdrv;
1741 ippdrv->ops[EXYNOS_DRM_OPS_SRC] = &fimc_src_ops;
1742 ippdrv->ops[EXYNOS_DRM_OPS_DST] = &fimc_dst_ops;
1743 ippdrv->check_property = fimc_ippdrv_check_property;
1744 ippdrv->reset = fimc_ippdrv_reset;
1745 ippdrv->start = fimc_ippdrv_start;
1746 ippdrv->stop = fimc_ippdrv_stop;
1747 ret = fimc_init_prop_list(ippdrv);
1748 if (ret < 0) {
1749 dev_err(dev, "failed to init property list.\n");
1750 goto err_put_clk;
1751 }
1752
1753 DRM_DEBUG_KMS("id[%d]ippdrv[0x%x]\n", ctx->id, (int)ippdrv);
1754
1755 spin_lock_init(&ctx->lock);
1756 platform_set_drvdata(pdev, ctx);
1757
1758 pm_runtime_set_active(dev);
1759 pm_runtime_enable(dev);
1760
1761 ret = exynos_drm_ippdrv_register(ippdrv);
1762 if (ret < 0) {
1763 dev_err(dev, "failed to register drm fimc device.\n");
1764 goto err_pm_dis;
1765 }
1766
1767 dev_info(dev, "drm fimc registered successfully.\n");
1768
1769 return 0;
1770
1771 err_pm_dis:
1772 pm_runtime_disable(dev);
1773 err_put_clk:
1774 fimc_put_clocks(ctx);
1775
1776 return ret;
1777 }
1778
1779 static int fimc_remove(struct platform_device *pdev)
1780 {
1781 struct device *dev = &pdev->dev;
1782 struct fimc_context *ctx = get_fimc_context(dev);
1783 struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
1784
1785 exynos_drm_ippdrv_unregister(ippdrv);
1786
1787 fimc_put_clocks(ctx);
1788 pm_runtime_set_suspended(dev);
1789 pm_runtime_disable(dev);
1790
1791 return 0;
1792 }
1793
1794 #ifdef CONFIG_PM_SLEEP
1795 static int fimc_suspend(struct device *dev)
1796 {
1797 struct fimc_context *ctx = get_fimc_context(dev);
1798
1799 DRM_DEBUG_KMS("id[%d]\n", ctx->id);
1800
1801 if (pm_runtime_suspended(dev))
1802 return 0;
1803
1804 return fimc_clk_ctrl(ctx, false);
1805 }
1806
1807 static int fimc_resume(struct device *dev)
1808 {
1809 struct fimc_context *ctx = get_fimc_context(dev);
1810
1811 DRM_DEBUG_KMS("id[%d]\n", ctx->id);
1812
1813 if (!pm_runtime_suspended(dev))
1814 return fimc_clk_ctrl(ctx, true);
1815
1816 return 0;
1817 }
1818 #endif
1819
1820 #ifdef CONFIG_PM_RUNTIME
1821 static int fimc_runtime_suspend(struct device *dev)
1822 {
1823 struct fimc_context *ctx = get_fimc_context(dev);
1824
1825 DRM_DEBUG_KMS("id[%d]\n", ctx->id);
1826
1827 return fimc_clk_ctrl(ctx, false);
1828 }
1829
1830 static int fimc_runtime_resume(struct device *dev)
1831 {
1832 struct fimc_context *ctx = get_fimc_context(dev);
1833
1834 DRM_DEBUG_KMS("id[%d]\n", ctx->id);
1835
1836 return fimc_clk_ctrl(ctx, true);
1837 }
1838 #endif
1839
1840 static const struct dev_pm_ops fimc_pm_ops = {
1841 SET_SYSTEM_SLEEP_PM_OPS(fimc_suspend, fimc_resume)
1842 SET_RUNTIME_PM_OPS(fimc_runtime_suspend, fimc_runtime_resume, NULL)
1843 };
1844
1845 static const struct of_device_id fimc_of_match[] = {
1846 { .compatible = "samsung,exynos4210-fimc" },
1847 { .compatible = "samsung,exynos4212-fimc" },
1848 { },
1849 };
1850 MODULE_DEVICE_TABLE(of, fimc_of_match);
1851
1852 struct platform_driver fimc_driver = {
1853 .probe = fimc_probe,
1854 .remove = fimc_remove,
1855 .driver = {
1856 .of_match_table = fimc_of_match,
1857 .name = "exynos-drm-fimc",
1858 .owner = THIS_MODULE,
1859 .pm = &fimc_pm_ops,
1860 },
1861 };
1862
Linux kernel - Deliverables
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