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WIP FPC-III support
[linux/fpc-iii.git] / drivers / gpu / drm / exynos / exynos_drm_fimc.c
blob29ab8be8604c9ba0881d818eab5c055be699ecb2
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Copyright (C) 2012 Samsung Electronics Co.Ltd
4 * Authors:
5 * Eunchul Kim <chulspro.kim@samsung.com>
6 * Jinyoung Jeon <jy0.jeon@samsung.com>
7 * Sangmin Lee <lsmin.lee@samsung.com>
8 */
9
10 #include <linux/clk.h>
11 #include <linux/component.h>
12 #include <linux/kernel.h>
13 #include <linux/mfd/syscon.h>
14 #include <linux/of.h>
15 #include <linux/platform_device.h>
16 #include <linux/pm_runtime.h>
17 #include <linux/regmap.h>
18 #include <linux/spinlock.h>
19
20 #include <drm/drm_fourcc.h>
21 #include <drm/drm_print.h>
22 #include <drm/exynos_drm.h>
23
24 #include "exynos_drm_drv.h"
25 #include "exynos_drm_ipp.h"
26 #include "regs-fimc.h"
27
28 /*
29 * FIMC stands for Fully Interactive Mobile Camera and
30 * supports image scaler/rotator and input/output DMA operations.
31 * input DMA reads image data from the memory.
32 * output DMA writes image data to memory.
33 * FIMC supports image rotation and image effect functions.
34 */
35
36 #define FIMC_MAX_DEVS 4
37 #define FIMC_MAX_SRC 2
38 #define FIMC_MAX_DST 32
39 #define FIMC_SHFACTOR 10
40 #define FIMC_BUF_STOP 1
41 #define FIMC_BUF_START 2
42 #define FIMC_WIDTH_ITU_709 1280
43 #define FIMC_AUTOSUSPEND_DELAY 2000
44
45 static unsigned int fimc_mask = 0xc;
46 module_param_named(fimc_devs, fimc_mask, uint, 0644);
47 MODULE_PARM_DESC(fimc_devs, "Alias mask for assigning FIMC devices to Exynos DRM");
48
49 #define get_fimc_context(dev) dev_get_drvdata(dev)
50
51 enum {
52 FIMC_CLK_LCLK,
53 FIMC_CLK_GATE,
54 FIMC_CLK_WB_A,
55 FIMC_CLK_WB_B,
56 FIMC_CLKS_MAX
57 };
58
59 static const char * const fimc_clock_names[] = {
60 [FIMC_CLK_LCLK] = "sclk_fimc",
61 [FIMC_CLK_GATE] = "fimc",
62 [FIMC_CLK_WB_A] = "pxl_async0",
63 [FIMC_CLK_WB_B] = "pxl_async1",
64 };
65
66 /*
67 * A structure of scaler.
68 *
69 * @range: narrow, wide.
70 * @bypass: unused scaler path.
71 * @up_h: horizontal scale up.
72 * @up_v: vertical scale up.
73 * @hratio: horizontal ratio.
74 * @vratio: vertical ratio.
75 */
76 struct fimc_scaler {
77 bool range;
78 bool bypass;
79 bool up_h;
80 bool up_v;
81 u32 hratio;
82 u32 vratio;
83 };
84
85 /*
86 * A structure of fimc context.
87 *
88 * @regs_res: register resources.
89 * @regs: memory mapped io registers.
90 * @lock: locking of operations.
91 * @clocks: fimc clocks.
92 * @sc: scaler infomations.
93 * @pol: porarity of writeback.
94 * @id: fimc id.
95 * @irq: irq number.
96 */
97 struct fimc_context {
98 struct exynos_drm_ipp ipp;
99 struct drm_device *drm_dev;
100 void *dma_priv;
101 struct device *dev;
102 struct exynos_drm_ipp_task *task;
103 struct exynos_drm_ipp_formats *formats;
104 unsigned int num_formats;
105
106 struct resource *regs_res;
107 void __iomem *regs;
108 spinlock_t lock;
109 struct clk *clocks[FIMC_CLKS_MAX];
110 struct fimc_scaler sc;
111 int id;
112 int irq;
113 };
114
115 static u32 fimc_read(struct fimc_context *ctx, u32 reg)
116 {
117 return readl(ctx->regs + reg);
118 }
119
120 static void fimc_write(struct fimc_context *ctx, u32 val, u32 reg)
121 {
122 writel(val, ctx->regs + reg);
123 }
124
125 static void fimc_set_bits(struct fimc_context *ctx, u32 reg, u32 bits)
126 {
127 void __iomem *r = ctx->regs + reg;
128
129 writel(readl(r) | bits, r);
130 }
131
132 static void fimc_clear_bits(struct fimc_context *ctx, u32 reg, u32 bits)
133 {
134 void __iomem *r = ctx->regs + reg;
135
136 writel(readl(r) & ~bits, r);
137 }
138
139 static void fimc_sw_reset(struct fimc_context *ctx)
140 {
141 u32 cfg;
142
143 /* stop dma operation */
144 cfg = fimc_read(ctx, EXYNOS_CISTATUS);
145 if (EXYNOS_CISTATUS_GET_ENVID_STATUS(cfg))
146 fimc_clear_bits(ctx, EXYNOS_MSCTRL, EXYNOS_MSCTRL_ENVID);
147
148 fimc_set_bits(ctx, EXYNOS_CISRCFMT, EXYNOS_CISRCFMT_ITU601_8BIT);
149
150 /* disable image capture */
151 fimc_clear_bits(ctx, EXYNOS_CIIMGCPT,
152 EXYNOS_CIIMGCPT_IMGCPTEN_SC | EXYNOS_CIIMGCPT_IMGCPTEN);
153
154 /* s/w reset */
155 fimc_set_bits(ctx, EXYNOS_CIGCTRL, EXYNOS_CIGCTRL_SWRST);
156
157 /* s/w reset complete */
158 fimc_clear_bits(ctx, EXYNOS_CIGCTRL, EXYNOS_CIGCTRL_SWRST);
159
160 /* reset sequence */
161 fimc_write(ctx, 0x0, EXYNOS_CIFCNTSEQ);
162 }
163
164 static void fimc_set_type_ctrl(struct fimc_context *ctx)
165 {
166 u32 cfg;
167
168 cfg = fimc_read(ctx, EXYNOS_CIGCTRL);
169 cfg &= ~(EXYNOS_CIGCTRL_TESTPATTERN_MASK |
170 EXYNOS_CIGCTRL_SELCAM_ITU_MASK |
171 EXYNOS_CIGCTRL_SELCAM_MIPI_MASK |
172 EXYNOS_CIGCTRL_SELCAM_FIMC_MASK |
173 EXYNOS_CIGCTRL_SELWB_CAMIF_MASK |
174 EXYNOS_CIGCTRL_SELWRITEBACK_MASK);
175
176 cfg |= (EXYNOS_CIGCTRL_SELCAM_ITU_A |
177 EXYNOS_CIGCTRL_SELWRITEBACK_A |
178 EXYNOS_CIGCTRL_SELCAM_MIPI_A |
179 EXYNOS_CIGCTRL_SELCAM_FIMC_ITU);
180
181 fimc_write(ctx, cfg, EXYNOS_CIGCTRL);
182 }
183
184 static void fimc_handle_jpeg(struct fimc_context *ctx, bool enable)
185 {
186 u32 cfg;
187
188 DRM_DEV_DEBUG_KMS(ctx->dev, "enable[%d]\n", enable);
189
190 cfg = fimc_read(ctx, EXYNOS_CIGCTRL);
191 if (enable)
192 cfg |= EXYNOS_CIGCTRL_CAM_JPEG;
193 else
194 cfg &= ~EXYNOS_CIGCTRL_CAM_JPEG;
195
196 fimc_write(ctx, cfg, EXYNOS_CIGCTRL);
197 }
198
199 static void fimc_mask_irq(struct fimc_context *ctx, bool enable)
200 {
201 u32 cfg;
202
203 DRM_DEV_DEBUG_KMS(ctx->dev, "enable[%d]\n", enable);
204
205 cfg = fimc_read(ctx, EXYNOS_CIGCTRL);
206 if (enable) {
207 cfg &= ~EXYNOS_CIGCTRL_IRQ_OVFEN;
208 cfg |= EXYNOS_CIGCTRL_IRQ_ENABLE | EXYNOS_CIGCTRL_IRQ_LEVEL;
209 } else
210 cfg &= ~EXYNOS_CIGCTRL_IRQ_ENABLE;
211 fimc_write(ctx, cfg, EXYNOS_CIGCTRL);
212 }
213
214 static void fimc_clear_irq(struct fimc_context *ctx)
215 {
216 fimc_set_bits(ctx, EXYNOS_CIGCTRL, EXYNOS_CIGCTRL_IRQ_CLR);
217 }
218
219 static bool fimc_check_ovf(struct fimc_context *ctx)
220 {
221 u32 status, flag;
222
223 status = fimc_read(ctx, EXYNOS_CISTATUS);
224 flag = EXYNOS_CISTATUS_OVFIY | EXYNOS_CISTATUS_OVFICB |
225 EXYNOS_CISTATUS_OVFICR;
226
227 DRM_DEV_DEBUG_KMS(ctx->dev, "flag[0x%x]\n", flag);
228
229 if (status & flag) {
230 fimc_set_bits(ctx, EXYNOS_CIWDOFST,
231 EXYNOS_CIWDOFST_CLROVFIY | EXYNOS_CIWDOFST_CLROVFICB |
232 EXYNOS_CIWDOFST_CLROVFICR);
233
234 DRM_DEV_ERROR(ctx->dev,
235 "occurred overflow at %d, status 0x%x.\n",
236 ctx->id, status);
237 return true;
238 }
239
240 return false;
241 }
242
243 static bool fimc_check_frame_end(struct fimc_context *ctx)
244 {
245 u32 cfg;
246
247 cfg = fimc_read(ctx, EXYNOS_CISTATUS);
248
249 DRM_DEV_DEBUG_KMS(ctx->dev, "cfg[0x%x]\n", cfg);
250
251 if (!(cfg & EXYNOS_CISTATUS_FRAMEEND))
252 return false;
253
254 cfg &= ~(EXYNOS_CISTATUS_FRAMEEND);
255 fimc_write(ctx, cfg, EXYNOS_CISTATUS);
256
257 return true;
258 }
259
260 static int fimc_get_buf_id(struct fimc_context *ctx)
261 {
262 u32 cfg;
263 int frame_cnt, buf_id;
264
265 cfg = fimc_read(ctx, EXYNOS_CISTATUS2);
266 frame_cnt = EXYNOS_CISTATUS2_GET_FRAMECOUNT_BEFORE(cfg);
267
268 if (frame_cnt == 0)
269 frame_cnt = EXYNOS_CISTATUS2_GET_FRAMECOUNT_PRESENT(cfg);
270
271 DRM_DEV_DEBUG_KMS(ctx->dev, "present[%d]before[%d]\n",
272 EXYNOS_CISTATUS2_GET_FRAMECOUNT_PRESENT(cfg),
273 EXYNOS_CISTATUS2_GET_FRAMECOUNT_BEFORE(cfg));
274
275 if (frame_cnt == 0) {
276 DRM_DEV_ERROR(ctx->dev, "failed to get frame count.\n");
277 return -EIO;
278 }
279
280 buf_id = frame_cnt - 1;
281 DRM_DEV_DEBUG_KMS(ctx->dev, "buf_id[%d]\n", buf_id);
282
283 return buf_id;
284 }
285
286 static void fimc_handle_lastend(struct fimc_context *ctx, bool enable)
287 {
288 u32 cfg;
289
290 DRM_DEV_DEBUG_KMS(ctx->dev, "enable[%d]\n", enable);
291
292 cfg = fimc_read(ctx, EXYNOS_CIOCTRL);
293 if (enable)
294 cfg |= EXYNOS_CIOCTRL_LASTENDEN;
295 else
296 cfg &= ~EXYNOS_CIOCTRL_LASTENDEN;
297
298 fimc_write(ctx, cfg, EXYNOS_CIOCTRL);
299 }
300
301 static void fimc_src_set_fmt_order(struct fimc_context *ctx, u32 fmt)
302 {
303 u32 cfg;
304
305 DRM_DEV_DEBUG_KMS(ctx->dev, "fmt[0x%x]\n", fmt);
306
307 /* RGB */
308 cfg = fimc_read(ctx, EXYNOS_CISCCTRL);
309 cfg &= ~EXYNOS_CISCCTRL_INRGB_FMT_RGB_MASK;
310
311 switch (fmt) {
312 case DRM_FORMAT_RGB565:
313 cfg |= EXYNOS_CISCCTRL_INRGB_FMT_RGB565;
314 fimc_write(ctx, cfg, EXYNOS_CISCCTRL);
315 return;
316 case DRM_FORMAT_RGB888:
317 case DRM_FORMAT_XRGB8888:
318 cfg |= EXYNOS_CISCCTRL_INRGB_FMT_RGB888;
319 fimc_write(ctx, cfg, EXYNOS_CISCCTRL);
320 return;
321 default:
322 /* bypass */
323 break;
324 }
325
326 /* YUV */
327 cfg = fimc_read(ctx, EXYNOS_MSCTRL);
328 cfg &= ~(EXYNOS_MSCTRL_ORDER2P_SHIFT_MASK |
329 EXYNOS_MSCTRL_C_INT_IN_2PLANE |
330 EXYNOS_MSCTRL_ORDER422_YCBYCR);
331
332 switch (fmt) {
333 case DRM_FORMAT_YUYV:
334 cfg |= EXYNOS_MSCTRL_ORDER422_YCBYCR;
335 break;
336 case DRM_FORMAT_YVYU:
337 cfg |= EXYNOS_MSCTRL_ORDER422_YCRYCB;
338 break;
339 case DRM_FORMAT_UYVY:
340 cfg |= EXYNOS_MSCTRL_ORDER422_CBYCRY;
341 break;
342 case DRM_FORMAT_VYUY:
343 case DRM_FORMAT_YUV444:
344 cfg |= EXYNOS_MSCTRL_ORDER422_CRYCBY;
345 break;
346 case DRM_FORMAT_NV21:
347 case DRM_FORMAT_NV61:
348 cfg |= (EXYNOS_MSCTRL_ORDER2P_LSB_CRCB |
349 EXYNOS_MSCTRL_C_INT_IN_2PLANE);
350 break;
351 case DRM_FORMAT_YUV422:
352 case DRM_FORMAT_YUV420:
353 case DRM_FORMAT_YVU420:
354 cfg |= EXYNOS_MSCTRL_C_INT_IN_3PLANE;
355 break;
356 case DRM_FORMAT_NV12:
357 case DRM_FORMAT_NV16:
358 cfg |= (EXYNOS_MSCTRL_ORDER2P_LSB_CBCR |
359 EXYNOS_MSCTRL_C_INT_IN_2PLANE);
360 break;
361 }
362
363 fimc_write(ctx, cfg, EXYNOS_MSCTRL);
364 }
365
366 static void fimc_src_set_fmt(struct fimc_context *ctx, u32 fmt, bool tiled)
367 {
368 u32 cfg;
369
370 DRM_DEV_DEBUG_KMS(ctx->dev, "fmt[0x%x]\n", fmt);
371
372 cfg = fimc_read(ctx, EXYNOS_MSCTRL);
373 cfg &= ~EXYNOS_MSCTRL_INFORMAT_RGB;
374
375 switch (fmt) {
376 case DRM_FORMAT_RGB565:
377 case DRM_FORMAT_RGB888:
378 case DRM_FORMAT_XRGB8888:
379 cfg |= EXYNOS_MSCTRL_INFORMAT_RGB;
380 break;
381 case DRM_FORMAT_YUV444:
382 cfg |= EXYNOS_MSCTRL_INFORMAT_YCBCR420;
383 break;
384 case DRM_FORMAT_YUYV:
385 case DRM_FORMAT_YVYU:
386 case DRM_FORMAT_UYVY:
387 case DRM_FORMAT_VYUY:
388 cfg |= EXYNOS_MSCTRL_INFORMAT_YCBCR422_1PLANE;
389 break;
390 case DRM_FORMAT_NV16:
391 case DRM_FORMAT_NV61:
392 case DRM_FORMAT_YUV422:
393 cfg |= EXYNOS_MSCTRL_INFORMAT_YCBCR422;
394 break;
395 case DRM_FORMAT_YUV420:
396 case DRM_FORMAT_YVU420:
397 case DRM_FORMAT_NV12:
398 case DRM_FORMAT_NV21:
399 cfg |= EXYNOS_MSCTRL_INFORMAT_YCBCR420;
400 break;
401 }
402
403 fimc_write(ctx, cfg, EXYNOS_MSCTRL);
404
405 cfg = fimc_read(ctx, EXYNOS_CIDMAPARAM);
406 cfg &= ~EXYNOS_CIDMAPARAM_R_MODE_MASK;
407
408 if (tiled)
409 cfg |= EXYNOS_CIDMAPARAM_R_MODE_64X32;
410 else
411 cfg |= EXYNOS_CIDMAPARAM_R_MODE_LINEAR;
412
413 fimc_write(ctx, cfg, EXYNOS_CIDMAPARAM);
414
415 fimc_src_set_fmt_order(ctx, fmt);
416 }
417
418 static void fimc_src_set_transf(struct fimc_context *ctx, unsigned int rotation)
419 {
420 unsigned int degree = rotation & DRM_MODE_ROTATE_MASK;
421 u32 cfg1, cfg2;
422
423 DRM_DEV_DEBUG_KMS(ctx->dev, "rotation[%x]\n", rotation);
424
425 cfg1 = fimc_read(ctx, EXYNOS_MSCTRL);
426 cfg1 &= ~(EXYNOS_MSCTRL_FLIP_X_MIRROR |
427 EXYNOS_MSCTRL_FLIP_Y_MIRROR);
428
429 cfg2 = fimc_read(ctx, EXYNOS_CITRGFMT);
430 cfg2 &= ~EXYNOS_CITRGFMT_INROT90_CLOCKWISE;
431
432 switch (degree) {
433 case DRM_MODE_ROTATE_0:
434 if (rotation & DRM_MODE_REFLECT_X)
435 cfg1 |= EXYNOS_MSCTRL_FLIP_X_MIRROR;
436 if (rotation & DRM_MODE_REFLECT_Y)
437 cfg1 |= EXYNOS_MSCTRL_FLIP_Y_MIRROR;
438 break;
439 case DRM_MODE_ROTATE_90:
440 cfg2 |= EXYNOS_CITRGFMT_INROT90_CLOCKWISE;
441 if (rotation & DRM_MODE_REFLECT_X)
442 cfg1 |= EXYNOS_MSCTRL_FLIP_X_MIRROR;
443 if (rotation & DRM_MODE_REFLECT_Y)
444 cfg1 |= EXYNOS_MSCTRL_FLIP_Y_MIRROR;
445 break;
446 case DRM_MODE_ROTATE_180:
447 cfg1 |= (EXYNOS_MSCTRL_FLIP_X_MIRROR |
448 EXYNOS_MSCTRL_FLIP_Y_MIRROR);
449 if (rotation & DRM_MODE_REFLECT_X)
450 cfg1 &= ~EXYNOS_MSCTRL_FLIP_X_MIRROR;
451 if (rotation & DRM_MODE_REFLECT_Y)
452 cfg1 &= ~EXYNOS_MSCTRL_FLIP_Y_MIRROR;
453 break;
454 case DRM_MODE_ROTATE_270:
455 cfg1 |= (EXYNOS_MSCTRL_FLIP_X_MIRROR |
456 EXYNOS_MSCTRL_FLIP_Y_MIRROR);
457 cfg2 |= EXYNOS_CITRGFMT_INROT90_CLOCKWISE;
458 if (rotation & DRM_MODE_REFLECT_X)
459 cfg1 &= ~EXYNOS_MSCTRL_FLIP_X_MIRROR;
460 if (rotation & DRM_MODE_REFLECT_Y)
461 cfg1 &= ~EXYNOS_MSCTRL_FLIP_Y_MIRROR;
462 break;
463 }
464
465 fimc_write(ctx, cfg1, EXYNOS_MSCTRL);
466 fimc_write(ctx, cfg2, EXYNOS_CITRGFMT);
467 }
468
469 static void fimc_set_window(struct fimc_context *ctx,
470 struct exynos_drm_ipp_buffer *buf)
471 {
472 unsigned int real_width = buf->buf.pitch[0] / buf->format->cpp[0];
473 u32 cfg, h1, h2, v1, v2;
474
475 /* cropped image */
476 h1 = buf->rect.x;
477 h2 = real_width - buf->rect.w - buf->rect.x;
478 v1 = buf->rect.y;
479 v2 = buf->buf.height - buf->rect.h - buf->rect.y;
480
481 DRM_DEV_DEBUG_KMS(ctx->dev, "x[%d]y[%d]w[%d]h[%d]hsize[%d]vsize[%d]\n",
482 buf->rect.x, buf->rect.y, buf->rect.w, buf->rect.h,
483 real_width, buf->buf.height);
484 DRM_DEV_DEBUG_KMS(ctx->dev, "h1[%d]h2[%d]v1[%d]v2[%d]\n", h1, h2, v1,
485 v2);
486
487 /*
488 * set window offset 1, 2 size
489 * check figure 43-21 in user manual
490 */
491 cfg = fimc_read(ctx, EXYNOS_CIWDOFST);
492 cfg &= ~(EXYNOS_CIWDOFST_WINHOROFST_MASK |
493 EXYNOS_CIWDOFST_WINVEROFST_MASK);
494 cfg |= (EXYNOS_CIWDOFST_WINHOROFST(h1) |
495 EXYNOS_CIWDOFST_WINVEROFST(v1));
496 cfg |= EXYNOS_CIWDOFST_WINOFSEN;
497 fimc_write(ctx, cfg, EXYNOS_CIWDOFST);
498
499 cfg = (EXYNOS_CIWDOFST2_WINHOROFST2(h2) |
500 EXYNOS_CIWDOFST2_WINVEROFST2(v2));
501 fimc_write(ctx, cfg, EXYNOS_CIWDOFST2);
502 }
503
504 static void fimc_src_set_size(struct fimc_context *ctx,
505 struct exynos_drm_ipp_buffer *buf)
506 {
507 unsigned int real_width = buf->buf.pitch[0] / buf->format->cpp[0];
508 u32 cfg;
509
510 DRM_DEV_DEBUG_KMS(ctx->dev, "hsize[%d]vsize[%d]\n", real_width,
511 buf->buf.height);
512
513 /* original size */
514 cfg = (EXYNOS_ORGISIZE_HORIZONTAL(real_width) |
515 EXYNOS_ORGISIZE_VERTICAL(buf->buf.height));
516
517 fimc_write(ctx, cfg, EXYNOS_ORGISIZE);
518
519 DRM_DEV_DEBUG_KMS(ctx->dev, "x[%d]y[%d]w[%d]h[%d]\n", buf->rect.x,
520 buf->rect.y, buf->rect.w, buf->rect.h);
521
522 /* set input DMA image size */
523 cfg = fimc_read(ctx, EXYNOS_CIREAL_ISIZE);
524 cfg &= ~(EXYNOS_CIREAL_ISIZE_HEIGHT_MASK |
525 EXYNOS_CIREAL_ISIZE_WIDTH_MASK);
526 cfg |= (EXYNOS_CIREAL_ISIZE_WIDTH(buf->rect.w) |
527 EXYNOS_CIREAL_ISIZE_HEIGHT(buf->rect.h));
528 fimc_write(ctx, cfg, EXYNOS_CIREAL_ISIZE);
529
530 /*
531 * set input FIFO image size
532 * for now, we support only ITU601 8 bit mode
533 */
534 cfg = (EXYNOS_CISRCFMT_ITU601_8BIT |
535 EXYNOS_CISRCFMT_SOURCEHSIZE(real_width) |
536 EXYNOS_CISRCFMT_SOURCEVSIZE(buf->buf.height));
537 fimc_write(ctx, cfg, EXYNOS_CISRCFMT);
538
539 /* offset Y(RGB), Cb, Cr */
540 cfg = (EXYNOS_CIIYOFF_HORIZONTAL(buf->rect.x) |
541 EXYNOS_CIIYOFF_VERTICAL(buf->rect.y));
542 fimc_write(ctx, cfg, EXYNOS_CIIYOFF);
543 cfg = (EXYNOS_CIICBOFF_HORIZONTAL(buf->rect.x) |
544 EXYNOS_CIICBOFF_VERTICAL(buf->rect.y));
545 fimc_write(ctx, cfg, EXYNOS_CIICBOFF);
546 cfg = (EXYNOS_CIICROFF_HORIZONTAL(buf->rect.x) |
547 EXYNOS_CIICROFF_VERTICAL(buf->rect.y));
548 fimc_write(ctx, cfg, EXYNOS_CIICROFF);
549
550 fimc_set_window(ctx, buf);
551 }
552
553 static void fimc_src_set_addr(struct fimc_context *ctx,
554 struct exynos_drm_ipp_buffer *buf)
555 {
556 fimc_write(ctx, buf->dma_addr[0], EXYNOS_CIIYSA(0));
557 fimc_write(ctx, buf->dma_addr[1], EXYNOS_CIICBSA(0));
558 fimc_write(ctx, buf->dma_addr[2], EXYNOS_CIICRSA(0));
559 }
560
561 static void fimc_dst_set_fmt_order(struct fimc_context *ctx, u32 fmt)
562 {
563 u32 cfg;
564
565 DRM_DEV_DEBUG_KMS(ctx->dev, "fmt[0x%x]\n", fmt);
566
567 /* RGB */
568 cfg = fimc_read(ctx, EXYNOS_CISCCTRL);
569 cfg &= ~EXYNOS_CISCCTRL_OUTRGB_FMT_RGB_MASK;
570
571 switch (fmt) {
572 case DRM_FORMAT_RGB565:
573 cfg |= EXYNOS_CISCCTRL_OUTRGB_FMT_RGB565;
574 fimc_write(ctx, cfg, EXYNOS_CISCCTRL);
575 return;
576 case DRM_FORMAT_RGB888:
577 cfg |= EXYNOS_CISCCTRL_OUTRGB_FMT_RGB888;
578 fimc_write(ctx, cfg, EXYNOS_CISCCTRL);
579 return;
580 case DRM_FORMAT_XRGB8888:
581 cfg |= (EXYNOS_CISCCTRL_OUTRGB_FMT_RGB888 |
582 EXYNOS_CISCCTRL_EXTRGB_EXTENSION);
583 fimc_write(ctx, cfg, EXYNOS_CISCCTRL);
584 break;
585 default:
586 /* bypass */
587 break;
588 }
589
590 /* YUV */
591 cfg = fimc_read(ctx, EXYNOS_CIOCTRL);
592 cfg &= ~(EXYNOS_CIOCTRL_ORDER2P_MASK |
593 EXYNOS_CIOCTRL_ORDER422_MASK |
594 EXYNOS_CIOCTRL_YCBCR_PLANE_MASK);
595
596 switch (fmt) {
597 case DRM_FORMAT_XRGB8888:
598 cfg |= EXYNOS_CIOCTRL_ALPHA_OUT;
599 break;
600 case DRM_FORMAT_YUYV:
601 cfg |= EXYNOS_CIOCTRL_ORDER422_YCBYCR;
602 break;
603 case DRM_FORMAT_YVYU:
604 cfg |= EXYNOS_CIOCTRL_ORDER422_YCRYCB;
605 break;
606 case DRM_FORMAT_UYVY:
607 cfg |= EXYNOS_CIOCTRL_ORDER422_CBYCRY;
608 break;
609 case DRM_FORMAT_VYUY:
610 cfg |= EXYNOS_CIOCTRL_ORDER422_CRYCBY;
611 break;
612 case DRM_FORMAT_NV21:
613 case DRM_FORMAT_NV61:
614 cfg |= EXYNOS_CIOCTRL_ORDER2P_LSB_CRCB;
615 cfg |= EXYNOS_CIOCTRL_YCBCR_2PLANE;
616 break;
617 case DRM_FORMAT_YUV422:
618 case DRM_FORMAT_YUV420:
619 case DRM_FORMAT_YVU420:
620 cfg |= EXYNOS_CIOCTRL_YCBCR_3PLANE;
621 break;
622 case DRM_FORMAT_NV12:
623 case DRM_FORMAT_NV16:
624 cfg |= EXYNOS_CIOCTRL_ORDER2P_LSB_CBCR;
625 cfg |= EXYNOS_CIOCTRL_YCBCR_2PLANE;
626 break;
627 }
628
629 fimc_write(ctx, cfg, EXYNOS_CIOCTRL);
630 }
631
632 static void fimc_dst_set_fmt(struct fimc_context *ctx, u32 fmt, bool tiled)
633 {
634 u32 cfg;
635
636 DRM_DEV_DEBUG_KMS(ctx->dev, "fmt[0x%x]\n", fmt);
637
638 cfg = fimc_read(ctx, EXYNOS_CIEXTEN);
639
640 if (fmt == DRM_FORMAT_AYUV) {
641 cfg |= EXYNOS_CIEXTEN_YUV444_OUT;
642 fimc_write(ctx, cfg, EXYNOS_CIEXTEN);
643 } else {
644 cfg &= ~EXYNOS_CIEXTEN_YUV444_OUT;
645 fimc_write(ctx, cfg, EXYNOS_CIEXTEN);
646
647 cfg = fimc_read(ctx, EXYNOS_CITRGFMT);
648 cfg &= ~EXYNOS_CITRGFMT_OUTFORMAT_MASK;
649
650 switch (fmt) {
651 case DRM_FORMAT_RGB565:
652 case DRM_FORMAT_RGB888:
653 case DRM_FORMAT_XRGB8888:
654 cfg |= EXYNOS_CITRGFMT_OUTFORMAT_RGB;
655 break;
656 case DRM_FORMAT_YUYV:
657 case DRM_FORMAT_YVYU:
658 case DRM_FORMAT_UYVY:
659 case DRM_FORMAT_VYUY:
660 cfg |= EXYNOS_CITRGFMT_OUTFORMAT_YCBCR422_1PLANE;
661 break;
662 case DRM_FORMAT_NV16:
663 case DRM_FORMAT_NV61:
664 case DRM_FORMAT_YUV422:
665 cfg |= EXYNOS_CITRGFMT_OUTFORMAT_YCBCR422;
666 break;
667 case DRM_FORMAT_YUV420:
668 case DRM_FORMAT_YVU420:
669 case DRM_FORMAT_NV12:
670 case DRM_FORMAT_NV21:
671 cfg |= EXYNOS_CITRGFMT_OUTFORMAT_YCBCR420;
672 break;
673 }
674
675 fimc_write(ctx, cfg, EXYNOS_CITRGFMT);
676 }
677
678 cfg = fimc_read(ctx, EXYNOS_CIDMAPARAM);
679 cfg &= ~EXYNOS_CIDMAPARAM_W_MODE_MASK;
680
681 if (tiled)
682 cfg |= EXYNOS_CIDMAPARAM_W_MODE_64X32;
683 else
684 cfg |= EXYNOS_CIDMAPARAM_W_MODE_LINEAR;
685
686 fimc_write(ctx, cfg, EXYNOS_CIDMAPARAM);
687
688 fimc_dst_set_fmt_order(ctx, fmt);
689 }
690
691 static void fimc_dst_set_transf(struct fimc_context *ctx, unsigned int rotation)
692 {
693 unsigned int degree = rotation & DRM_MODE_ROTATE_MASK;
694 u32 cfg;
695
696 DRM_DEV_DEBUG_KMS(ctx->dev, "rotation[0x%x]\n", rotation);
697
698 cfg = fimc_read(ctx, EXYNOS_CITRGFMT);
699 cfg &= ~EXYNOS_CITRGFMT_FLIP_MASK;
700 cfg &= ~EXYNOS_CITRGFMT_OUTROT90_CLOCKWISE;
701
702 switch (degree) {
703 case DRM_MODE_ROTATE_0:
704 if (rotation & DRM_MODE_REFLECT_X)
705 cfg |= EXYNOS_CITRGFMT_FLIP_X_MIRROR;
706 if (rotation & DRM_MODE_REFLECT_Y)
707 cfg |= EXYNOS_CITRGFMT_FLIP_Y_MIRROR;
708 break;
709 case DRM_MODE_ROTATE_90:
710 cfg |= EXYNOS_CITRGFMT_OUTROT90_CLOCKWISE;
711 if (rotation & DRM_MODE_REFLECT_X)
712 cfg |= EXYNOS_CITRGFMT_FLIP_X_MIRROR;
713 if (rotation & DRM_MODE_REFLECT_Y)
714 cfg |= EXYNOS_CITRGFMT_FLIP_Y_MIRROR;
715 break;
716 case DRM_MODE_ROTATE_180:
717 cfg |= (EXYNOS_CITRGFMT_FLIP_X_MIRROR |
718 EXYNOS_CITRGFMT_FLIP_Y_MIRROR);
719 if (rotation & DRM_MODE_REFLECT_X)
720 cfg &= ~EXYNOS_CITRGFMT_FLIP_X_MIRROR;
721 if (rotation & DRM_MODE_REFLECT_Y)
722 cfg &= ~EXYNOS_CITRGFMT_FLIP_Y_MIRROR;
723 break;
724 case DRM_MODE_ROTATE_270:
725 cfg |= (EXYNOS_CITRGFMT_OUTROT90_CLOCKWISE |
726 EXYNOS_CITRGFMT_FLIP_X_MIRROR |
727 EXYNOS_CITRGFMT_FLIP_Y_MIRROR);
728 if (rotation & DRM_MODE_REFLECT_X)
729 cfg &= ~EXYNOS_CITRGFMT_FLIP_X_MIRROR;
730 if (rotation & DRM_MODE_REFLECT_Y)
731 cfg &= ~EXYNOS_CITRGFMT_FLIP_Y_MIRROR;
732 break;
733 }
734
735 fimc_write(ctx, cfg, EXYNOS_CITRGFMT);
736 }
737
738 static int fimc_set_prescaler(struct fimc_context *ctx, struct fimc_scaler *sc,
739 struct drm_exynos_ipp_task_rect *src,
740 struct drm_exynos_ipp_task_rect *dst)
741 {
742 u32 cfg, cfg_ext, shfactor;
743 u32 pre_dst_width, pre_dst_height;
744 u32 hfactor, vfactor;
745 int ret = 0;
746 u32 src_w, src_h, dst_w, dst_h;
747
748 cfg_ext = fimc_read(ctx, EXYNOS_CITRGFMT);
749 if (cfg_ext & EXYNOS_CITRGFMT_INROT90_CLOCKWISE) {
750 src_w = src->h;
751 src_h = src->w;
752 } else {
753 src_w = src->w;
754 src_h = src->h;
755 }
756
757 if (cfg_ext & EXYNOS_CITRGFMT_OUTROT90_CLOCKWISE) {
758 dst_w = dst->h;
759 dst_h = dst->w;
760 } else {
761 dst_w = dst->w;
762 dst_h = dst->h;
763 }
764
765 /* fimc_ippdrv_check_property assures that dividers are not null */
766 hfactor = fls(src_w / dst_w / 2);
767 if (hfactor > FIMC_SHFACTOR / 2) {
768 dev_err(ctx->dev, "failed to get ratio horizontal.\n");
769 return -EINVAL;
770 }
771
772 vfactor = fls(src_h / dst_h / 2);
773 if (vfactor > FIMC_SHFACTOR / 2) {
774 dev_err(ctx->dev, "failed to get ratio vertical.\n");
775 return -EINVAL;
776 }
777
778 pre_dst_width = src_w >> hfactor;
779 pre_dst_height = src_h >> vfactor;
780 DRM_DEV_DEBUG_KMS(ctx->dev, "pre_dst_width[%d]pre_dst_height[%d]\n",
781 pre_dst_width, pre_dst_height);
782 DRM_DEV_DEBUG_KMS(ctx->dev, "hfactor[%d]vfactor[%d]\n", hfactor,
783 vfactor);
784
785 sc->hratio = (src_w << 14) / (dst_w << hfactor);
786 sc->vratio = (src_h << 14) / (dst_h << vfactor);
787 sc->up_h = (dst_w >= src_w) ? true : false;
788 sc->up_v = (dst_h >= src_h) ? true : false;
789 DRM_DEV_DEBUG_KMS(ctx->dev, "hratio[%d]vratio[%d]up_h[%d]up_v[%d]\n",
790 sc->hratio, sc->vratio, sc->up_h, sc->up_v);
791
792 shfactor = FIMC_SHFACTOR - (hfactor + vfactor);
793 DRM_DEV_DEBUG_KMS(ctx->dev, "shfactor[%d]\n", shfactor);
794
795 cfg = (EXYNOS_CISCPRERATIO_SHFACTOR(shfactor) |
796 EXYNOS_CISCPRERATIO_PREHORRATIO(1 << hfactor) |
797 EXYNOS_CISCPRERATIO_PREVERRATIO(1 << vfactor));
798 fimc_write(ctx, cfg, EXYNOS_CISCPRERATIO);
799
800 cfg = (EXYNOS_CISCPREDST_PREDSTWIDTH(pre_dst_width) |
801 EXYNOS_CISCPREDST_PREDSTHEIGHT(pre_dst_height));
802 fimc_write(ctx, cfg, EXYNOS_CISCPREDST);
803
804 return ret;
805 }
806
807 static void fimc_set_scaler(struct fimc_context *ctx, struct fimc_scaler *sc)
808 {
809 u32 cfg, cfg_ext;
810
811 DRM_DEV_DEBUG_KMS(ctx->dev, "range[%d]bypass[%d]up_h[%d]up_v[%d]\n",
812 sc->range, sc->bypass, sc->up_h, sc->up_v);
813 DRM_DEV_DEBUG_KMS(ctx->dev, "hratio[%d]vratio[%d]\n",
814 sc->hratio, sc->vratio);
815
816 cfg = fimc_read(ctx, EXYNOS_CISCCTRL);
817 cfg &= ~(EXYNOS_CISCCTRL_SCALERBYPASS |
818 EXYNOS_CISCCTRL_SCALEUP_H | EXYNOS_CISCCTRL_SCALEUP_V |
819 EXYNOS_CISCCTRL_MAIN_V_RATIO_MASK |
820 EXYNOS_CISCCTRL_MAIN_H_RATIO_MASK |
821 EXYNOS_CISCCTRL_CSCR2Y_WIDE |
822 EXYNOS_CISCCTRL_CSCY2R_WIDE);
823
824 if (sc->range)
825 cfg |= (EXYNOS_CISCCTRL_CSCR2Y_WIDE |
826 EXYNOS_CISCCTRL_CSCY2R_WIDE);
827 if (sc->bypass)
828 cfg |= EXYNOS_CISCCTRL_SCALERBYPASS;
829 if (sc->up_h)
830 cfg |= EXYNOS_CISCCTRL_SCALEUP_H;
831 if (sc->up_v)
832 cfg |= EXYNOS_CISCCTRL_SCALEUP_V;
833
834 cfg |= (EXYNOS_CISCCTRL_MAINHORRATIO((sc->hratio >> 6)) |
835 EXYNOS_CISCCTRL_MAINVERRATIO((sc->vratio >> 6)));
836 fimc_write(ctx, cfg, EXYNOS_CISCCTRL);
837
838 cfg_ext = fimc_read(ctx, EXYNOS_CIEXTEN);
839 cfg_ext &= ~EXYNOS_CIEXTEN_MAINHORRATIO_EXT_MASK;
840 cfg_ext &= ~EXYNOS_CIEXTEN_MAINVERRATIO_EXT_MASK;
841 cfg_ext |= (EXYNOS_CIEXTEN_MAINHORRATIO_EXT(sc->hratio) |
842 EXYNOS_CIEXTEN_MAINVERRATIO_EXT(sc->vratio));
843 fimc_write(ctx, cfg_ext, EXYNOS_CIEXTEN);
844 }
845
846 static void fimc_dst_set_size(struct fimc_context *ctx,
847 struct exynos_drm_ipp_buffer *buf)
848 {
849 unsigned int real_width = buf->buf.pitch[0] / buf->format->cpp[0];
850 u32 cfg, cfg_ext;
851
852 DRM_DEV_DEBUG_KMS(ctx->dev, "hsize[%d]vsize[%d]\n", real_width,
853 buf->buf.height);
854
855 /* original size */
856 cfg = (EXYNOS_ORGOSIZE_HORIZONTAL(real_width) |
857 EXYNOS_ORGOSIZE_VERTICAL(buf->buf.height));
858
859 fimc_write(ctx, cfg, EXYNOS_ORGOSIZE);
860
861 DRM_DEV_DEBUG_KMS(ctx->dev, "x[%d]y[%d]w[%d]h[%d]\n", buf->rect.x,
862 buf->rect.y,
863 buf->rect.w, buf->rect.h);
864
865 /* CSC ITU */
866 cfg = fimc_read(ctx, EXYNOS_CIGCTRL);
867 cfg &= ~EXYNOS_CIGCTRL_CSC_MASK;
868
869 if (buf->buf.width >= FIMC_WIDTH_ITU_709)
870 cfg |= EXYNOS_CIGCTRL_CSC_ITU709;
871 else
872 cfg |= EXYNOS_CIGCTRL_CSC_ITU601;
873
874 fimc_write(ctx, cfg, EXYNOS_CIGCTRL);
875
876 cfg_ext = fimc_read(ctx, EXYNOS_CITRGFMT);
877
878 /* target image size */
879 cfg = fimc_read(ctx, EXYNOS_CITRGFMT);
880 cfg &= ~(EXYNOS_CITRGFMT_TARGETH_MASK |
881 EXYNOS_CITRGFMT_TARGETV_MASK);
882 if (cfg_ext & EXYNOS_CITRGFMT_OUTROT90_CLOCKWISE)
883 cfg |= (EXYNOS_CITRGFMT_TARGETHSIZE(buf->rect.h) |
884 EXYNOS_CITRGFMT_TARGETVSIZE(buf->rect.w));
885 else
886 cfg |= (EXYNOS_CITRGFMT_TARGETHSIZE(buf->rect.w) |
887 EXYNOS_CITRGFMT_TARGETVSIZE(buf->rect.h));
888 fimc_write(ctx, cfg, EXYNOS_CITRGFMT);
889
890 /* target area */
891 cfg = EXYNOS_CITAREA_TARGET_AREA(buf->rect.w * buf->rect.h);
892 fimc_write(ctx, cfg, EXYNOS_CITAREA);
893
894 /* offset Y(RGB), Cb, Cr */
895 cfg = (EXYNOS_CIOYOFF_HORIZONTAL(buf->rect.x) |
896 EXYNOS_CIOYOFF_VERTICAL(buf->rect.y));
897 fimc_write(ctx, cfg, EXYNOS_CIOYOFF);
898 cfg = (EXYNOS_CIOCBOFF_HORIZONTAL(buf->rect.x) |
899 EXYNOS_CIOCBOFF_VERTICAL(buf->rect.y));
900 fimc_write(ctx, cfg, EXYNOS_CIOCBOFF);
901 cfg = (EXYNOS_CIOCROFF_HORIZONTAL(buf->rect.x) |
902 EXYNOS_CIOCROFF_VERTICAL(buf->rect.y));
903 fimc_write(ctx, cfg, EXYNOS_CIOCROFF);
904 }
905
906 static void fimc_dst_set_buf_seq(struct fimc_context *ctx, u32 buf_id,
907 bool enqueue)
908 {
909 unsigned long flags;
910 u32 buf_num;
911 u32 cfg;
912
913 DRM_DEV_DEBUG_KMS(ctx->dev, "buf_id[%d]enqueu[%d]\n", buf_id, enqueue);
914
915 spin_lock_irqsave(&ctx->lock, flags);
916
917 cfg = fimc_read(ctx, EXYNOS_CIFCNTSEQ);
918
919 if (enqueue)
920 cfg |= (1 << buf_id);
921 else
922 cfg &= ~(1 << buf_id);
923
924 fimc_write(ctx, cfg, EXYNOS_CIFCNTSEQ);
925
926 buf_num = hweight32(cfg);
927
928 if (enqueue && buf_num >= FIMC_BUF_START)
929 fimc_mask_irq(ctx, true);
930 else if (!enqueue && buf_num <= FIMC_BUF_STOP)
931 fimc_mask_irq(ctx, false);
932
933 spin_unlock_irqrestore(&ctx->lock, flags);
934 }
935
936 static void fimc_dst_set_addr(struct fimc_context *ctx,
937 struct exynos_drm_ipp_buffer *buf)
938 {
939 fimc_write(ctx, buf->dma_addr[0], EXYNOS_CIOYSA(0));
940 fimc_write(ctx, buf->dma_addr[1], EXYNOS_CIOCBSA(0));
941 fimc_write(ctx, buf->dma_addr[2], EXYNOS_CIOCRSA(0));
942
943 fimc_dst_set_buf_seq(ctx, 0, true);
944 }
945
946 static void fimc_stop(struct fimc_context *ctx);
947
948 static irqreturn_t fimc_irq_handler(int irq, void *dev_id)
949 {
950 struct fimc_context *ctx = dev_id;
951 int buf_id;
952
953 DRM_DEV_DEBUG_KMS(ctx->dev, "fimc id[%d]\n", ctx->id);
954
955 fimc_clear_irq(ctx);
956 if (fimc_check_ovf(ctx))
957 return IRQ_NONE;
958
959 if (!fimc_check_frame_end(ctx))
960 return IRQ_NONE;
961
962 buf_id = fimc_get_buf_id(ctx);
963 if (buf_id < 0)
964 return IRQ_HANDLED;
965
966 DRM_DEV_DEBUG_KMS(ctx->dev, "buf_id[%d]\n", buf_id);
967
968 if (ctx->task) {
969 struct exynos_drm_ipp_task *task = ctx->task;
970
971 ctx->task = NULL;
972 pm_runtime_mark_last_busy(ctx->dev);
973 pm_runtime_put_autosuspend(ctx->dev);
974 exynos_drm_ipp_task_done(task, 0);
975 }
976
977 fimc_dst_set_buf_seq(ctx, buf_id, false);
978 fimc_stop(ctx);
979
980 return IRQ_HANDLED;
981 }
982
983 static void fimc_clear_addr(struct fimc_context *ctx)
984 {
985 int i;
986
987 for (i = 0; i < FIMC_MAX_SRC; i++) {
988 fimc_write(ctx, 0, EXYNOS_CIIYSA(i));
989 fimc_write(ctx, 0, EXYNOS_CIICBSA(i));
990 fimc_write(ctx, 0, EXYNOS_CIICRSA(i));
991 }
992
993 for (i = 0; i < FIMC_MAX_DST; i++) {
994 fimc_write(ctx, 0, EXYNOS_CIOYSA(i));
995 fimc_write(ctx, 0, EXYNOS_CIOCBSA(i));
996 fimc_write(ctx, 0, EXYNOS_CIOCRSA(i));
997 }
998 }
999
1000 static void fimc_reset(struct fimc_context *ctx)
1001 {
1002 /* reset h/w block */
1003 fimc_sw_reset(ctx);
1004
1005 /* reset scaler capability */
1006 memset(&ctx->sc, 0x0, sizeof(ctx->sc));
1007
1008 fimc_clear_addr(ctx);
1009 }
1010
1011 static void fimc_start(struct fimc_context *ctx)
1012 {
1013 u32 cfg0, cfg1;
1014
1015 fimc_mask_irq(ctx, true);
1016
1017 /* If set true, we can save jpeg about screen */
1018 fimc_handle_jpeg(ctx, false);
1019 fimc_set_scaler(ctx, &ctx->sc);
1020
1021 fimc_set_type_ctrl(ctx);
1022 fimc_handle_lastend(ctx, false);
1023
1024 /* setup dma */
1025 cfg0 = fimc_read(ctx, EXYNOS_MSCTRL);
1026 cfg0 &= ~EXYNOS_MSCTRL_INPUT_MASK;
1027 cfg0 |= EXYNOS_MSCTRL_INPUT_MEMORY;
1028 fimc_write(ctx, cfg0, EXYNOS_MSCTRL);
1029
1030 /* Reset status */
1031 fimc_write(ctx, 0x0, EXYNOS_CISTATUS);
1032
1033 cfg0 = fimc_read(ctx, EXYNOS_CIIMGCPT);
1034 cfg0 &= ~EXYNOS_CIIMGCPT_IMGCPTEN_SC;
1035 cfg0 |= EXYNOS_CIIMGCPT_IMGCPTEN_SC;
1036
1037 /* Scaler */
1038 cfg1 = fimc_read(ctx, EXYNOS_CISCCTRL);
1039 cfg1 &= ~EXYNOS_CISCCTRL_SCAN_MASK;
1040 cfg1 |= (EXYNOS_CISCCTRL_PROGRESSIVE |
1041 EXYNOS_CISCCTRL_SCALERSTART);
1042
1043 fimc_write(ctx, cfg1, EXYNOS_CISCCTRL);
1044
1045 /* Enable image capture*/
1046 cfg0 |= EXYNOS_CIIMGCPT_IMGCPTEN;
1047 fimc_write(ctx, cfg0, EXYNOS_CIIMGCPT);
1048
1049 /* Disable frame end irq */
1050 fimc_clear_bits(ctx, EXYNOS_CIGCTRL, EXYNOS_CIGCTRL_IRQ_END_DISABLE);
1051
1052 fimc_clear_bits(ctx, EXYNOS_CIOCTRL, EXYNOS_CIOCTRL_WEAVE_MASK);
1053
1054 fimc_set_bits(ctx, EXYNOS_MSCTRL, EXYNOS_MSCTRL_ENVID);
1055 }
1056
1057 static void fimc_stop(struct fimc_context *ctx)
1058 {
1059 u32 cfg;
1060
1061 /* Source clear */
1062 cfg = fimc_read(ctx, EXYNOS_MSCTRL);
1063 cfg &= ~EXYNOS_MSCTRL_INPUT_MASK;
1064 cfg &= ~EXYNOS_MSCTRL_ENVID;
1065 fimc_write(ctx, cfg, EXYNOS_MSCTRL);
1066
1067 fimc_mask_irq(ctx, false);
1068
1069 /* reset sequence */
1070 fimc_write(ctx, 0x0, EXYNOS_CIFCNTSEQ);
1071
1072 /* Scaler disable */
1073 fimc_clear_bits(ctx, EXYNOS_CISCCTRL, EXYNOS_CISCCTRL_SCALERSTART);
1074
1075 /* Disable image capture */
1076 fimc_clear_bits(ctx, EXYNOS_CIIMGCPT,
1077 EXYNOS_CIIMGCPT_IMGCPTEN_SC | EXYNOS_CIIMGCPT_IMGCPTEN);
1078
1079 /* Enable frame end irq */
1080 fimc_set_bits(ctx, EXYNOS_CIGCTRL, EXYNOS_CIGCTRL_IRQ_END_DISABLE);
1081 }
1082
1083 static int fimc_commit(struct exynos_drm_ipp *ipp,
1084 struct exynos_drm_ipp_task *task)
1085 {
1086 struct fimc_context *ctx =
1087 container_of(ipp, struct fimc_context, ipp);
1088
1089 pm_runtime_get_sync(ctx->dev);
1090 ctx->task = task;
1091
1092 fimc_src_set_fmt(ctx, task->src.buf.fourcc, task->src.buf.modifier);
1093 fimc_src_set_size(ctx, &task->src);
1094 fimc_src_set_transf(ctx, DRM_MODE_ROTATE_0);
1095 fimc_src_set_addr(ctx, &task->src);
1096 fimc_dst_set_fmt(ctx, task->dst.buf.fourcc, task->dst.buf.modifier);
1097 fimc_dst_set_transf(ctx, task->transform.rotation);
1098 fimc_dst_set_size(ctx, &task->dst);
1099 fimc_dst_set_addr(ctx, &task->dst);
1100 fimc_set_prescaler(ctx, &ctx->sc, &task->src.rect, &task->dst.rect);
1101 fimc_start(ctx);
1102
1103 return 0;
1104 }
1105
1106 static void fimc_abort(struct exynos_drm_ipp *ipp,
1107 struct exynos_drm_ipp_task *task)
1108 {
1109 struct fimc_context *ctx =
1110 container_of(ipp, struct fimc_context, ipp);
1111
1112 fimc_reset(ctx);
1113
1114 if (ctx->task) {
1115 struct exynos_drm_ipp_task *task = ctx->task;
1116
1117 ctx->task = NULL;
1118 pm_runtime_mark_last_busy(ctx->dev);
1119 pm_runtime_put_autosuspend(ctx->dev);
1120 exynos_drm_ipp_task_done(task, -EIO);
1121 }
1122 }
1123
1124 static struct exynos_drm_ipp_funcs ipp_funcs = {
1125 .commit = fimc_commit,
1126 .abort = fimc_abort,
1127 };
1128
1129 static int fimc_bind(struct device *dev, struct device *master, void *data)
1130 {
1131 struct fimc_context *ctx = dev_get_drvdata(dev);
1132 struct drm_device *drm_dev = data;
1133 struct exynos_drm_ipp *ipp = &ctx->ipp;
1134
1135 ctx->drm_dev = drm_dev;
1136 ipp->drm_dev = drm_dev;
1137 exynos_drm_register_dma(drm_dev, dev, &ctx->dma_priv);
1138
1139 exynos_drm_ipp_register(dev, ipp, &ipp_funcs,
1140 DRM_EXYNOS_IPP_CAP_CROP | DRM_EXYNOS_IPP_CAP_ROTATE |
1141 DRM_EXYNOS_IPP_CAP_SCALE | DRM_EXYNOS_IPP_CAP_CONVERT,
1142 ctx->formats, ctx->num_formats, "fimc");
1143
1144 dev_info(dev, "The exynos fimc has been probed successfully\n");
1145
1146 return 0;
1147 }
1148
1149 static void fimc_unbind(struct device *dev, struct device *master,
1150 void *data)
1151 {
1152 struct fimc_context *ctx = dev_get_drvdata(dev);
1153 struct drm_device *drm_dev = data;
1154 struct exynos_drm_ipp *ipp = &ctx->ipp;
1155
1156 exynos_drm_ipp_unregister(dev, ipp);
1157 exynos_drm_unregister_dma(drm_dev, dev, &ctx->dma_priv);
1158 }
1159
1160 static const struct component_ops fimc_component_ops = {
1161 .bind = fimc_bind,
1162 .unbind = fimc_unbind,
1163 };
1164
1165 static void fimc_put_clocks(struct fimc_context *ctx)
1166 {
1167 int i;
1168
1169 for (i = 0; i < FIMC_CLKS_MAX; i++) {
1170 if (IS_ERR(ctx->clocks[i]))
1171 continue;
1172 clk_put(ctx->clocks[i]);
1173 ctx->clocks[i] = ERR_PTR(-EINVAL);
1174 }
1175 }
1176
1177 static int fimc_setup_clocks(struct fimc_context *ctx)
1178 {
1179 struct device *fimc_dev = ctx->dev;
1180 struct device *dev;
1181 int ret, i;
1182
1183 for (i = 0; i < FIMC_CLKS_MAX; i++)
1184 ctx->clocks[i] = ERR_PTR(-EINVAL);
1185
1186 for (i = 0; i < FIMC_CLKS_MAX; i++) {
1187 if (i == FIMC_CLK_WB_A || i == FIMC_CLK_WB_B)
1188 dev = fimc_dev->parent;
1189 else
1190 dev = fimc_dev;
1191
1192 ctx->clocks[i] = clk_get(dev, fimc_clock_names[i]);
1193 if (IS_ERR(ctx->clocks[i])) {
1194 ret = PTR_ERR(ctx->clocks[i]);
1195 dev_err(fimc_dev, "failed to get clock: %s\n",
1196 fimc_clock_names[i]);
1197 goto e_clk_free;
1198 }
1199 }
1200
1201 ret = clk_prepare_enable(ctx->clocks[FIMC_CLK_LCLK]);
1202 if (!ret)
1203 return ret;
1204 e_clk_free:
1205 fimc_put_clocks(ctx);
1206 return ret;
1207 }
1208
1209 int exynos_drm_check_fimc_device(struct device *dev)
1210 {
1211 int id = of_alias_get_id(dev->of_node, "fimc");
1212
1213 if (id >= 0 && (BIT(id) & fimc_mask))
1214 return 0;
1215 return -ENODEV;
1216 }
1217
1218 static const unsigned int fimc_formats[] = {
1219 DRM_FORMAT_XRGB8888, DRM_FORMAT_RGB565,
1220 DRM_FORMAT_NV12, DRM_FORMAT_NV16, DRM_FORMAT_NV21, DRM_FORMAT_NV61,
1221 DRM_FORMAT_UYVY, DRM_FORMAT_VYUY, DRM_FORMAT_YUYV, DRM_FORMAT_YVYU,
1222 DRM_FORMAT_YUV420, DRM_FORMAT_YVU420, DRM_FORMAT_YUV422,
1223 DRM_FORMAT_YUV444,
1224 };
1225
1226 static const unsigned int fimc_tiled_formats[] = {
1227 DRM_FORMAT_NV12, DRM_FORMAT_NV21,
1228 };
1229
1230 static const struct drm_exynos_ipp_limit fimc_4210_limits_v1[] = {
1231 { IPP_SIZE_LIMIT(BUFFER, .h = { 16, 8192, 8 }, .v = { 16, 8192, 2 }) },
1232 { IPP_SIZE_LIMIT(AREA, .h = { 16, 4224, 2 }, .v = { 16, 0, 2 }) },
1233 { IPP_SIZE_LIMIT(ROTATED, .h = { 128, 1920 }, .v = { 128, 0 }) },
1234 { IPP_SCALE_LIMIT(.h = { (1 << 16) / 64, (1 << 16) * 64 },
1235 .v = { (1 << 16) / 64, (1 << 16) * 64 }) },
1236 };
1237
1238 static const struct drm_exynos_ipp_limit fimc_4210_limits_v2[] = {
1239 { IPP_SIZE_LIMIT(BUFFER, .h = { 16, 8192, 8 }, .v = { 16, 8192, 2 }) },
1240 { IPP_SIZE_LIMIT(AREA, .h = { 16, 1920, 2 }, .v = { 16, 0, 2 }) },
1241 { IPP_SIZE_LIMIT(ROTATED, .h = { 128, 1366 }, .v = { 128, 0 }) },
1242 { IPP_SCALE_LIMIT(.h = { (1 << 16) / 64, (1 << 16) * 64 },
1243 .v = { (1 << 16) / 64, (1 << 16) * 64 }) },
1244 };
1245
1246 static const struct drm_exynos_ipp_limit fimc_4210_limits_tiled_v1[] = {
1247 { IPP_SIZE_LIMIT(BUFFER, .h = { 128, 1920, 128 }, .v = { 32, 1920, 32 }) },
1248 { IPP_SIZE_LIMIT(AREA, .h = { 128, 1920, 2 }, .v = { 128, 0, 2 }) },
1249 { IPP_SCALE_LIMIT(.h = { (1 << 16) / 64, (1 << 16) * 64 },
1250 .v = { (1 << 16) / 64, (1 << 16) * 64 }) },
1251 };
1252
1253 static const struct drm_exynos_ipp_limit fimc_4210_limits_tiled_v2[] = {
1254 { IPP_SIZE_LIMIT(BUFFER, .h = { 128, 1920, 128 }, .v = { 32, 1920, 32 }) },
1255 { IPP_SIZE_LIMIT(AREA, .h = { 128, 1366, 2 }, .v = { 128, 0, 2 }) },
1256 { IPP_SCALE_LIMIT(.h = { (1 << 16) / 64, (1 << 16) * 64 },
1257 .v = { (1 << 16) / 64, (1 << 16) * 64 }) },
1258 };
1259
1260 static int fimc_probe(struct platform_device *pdev)
1261 {
1262 const struct drm_exynos_ipp_limit *limits;
1263 struct exynos_drm_ipp_formats *formats;
1264 struct device *dev = &pdev->dev;
1265 struct fimc_context *ctx;
1266 struct resource *res;
1267 int ret;
1268 int i, j, num_limits, num_formats;
1269
1270 if (exynos_drm_check_fimc_device(dev) != 0)
1271 return -ENODEV;
1272
1273 ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
1274 if (!ctx)
1275 return -ENOMEM;
1276
1277 ctx->dev = dev;
1278 ctx->id = of_alias_get_id(dev->of_node, "fimc");
1279
1280 /* construct formats/limits array */
1281 num_formats = ARRAY_SIZE(fimc_formats) + ARRAY_SIZE(fimc_tiled_formats);
1282 formats = devm_kcalloc(dev, num_formats, sizeof(*formats),
1283 GFP_KERNEL);
1284 if (!formats)
1285 return -ENOMEM;
1286
1287 /* linear formats */
1288 if (ctx->id < 3) {
1289 limits = fimc_4210_limits_v1;
1290 num_limits = ARRAY_SIZE(fimc_4210_limits_v1);
1291 } else {
1292 limits = fimc_4210_limits_v2;
1293 num_limits = ARRAY_SIZE(fimc_4210_limits_v2);
1294 }
1295 for (i = 0; i < ARRAY_SIZE(fimc_formats); i++) {
1296 formats[i].fourcc = fimc_formats[i];
1297 formats[i].type = DRM_EXYNOS_IPP_FORMAT_SOURCE |
1298 DRM_EXYNOS_IPP_FORMAT_DESTINATION;
1299 formats[i].limits = limits;
1300 formats[i].num_limits = num_limits;
1301 }
1302
1303 /* tiled formats */
1304 if (ctx->id < 3) {
1305 limits = fimc_4210_limits_tiled_v1;
1306 num_limits = ARRAY_SIZE(fimc_4210_limits_tiled_v1);
1307 } else {
1308 limits = fimc_4210_limits_tiled_v2;
1309 num_limits = ARRAY_SIZE(fimc_4210_limits_tiled_v2);
1310 }
1311 for (j = i, i = 0; i < ARRAY_SIZE(fimc_tiled_formats); j++, i++) {
1312 formats[j].fourcc = fimc_tiled_formats[i];
1313 formats[j].modifier = DRM_FORMAT_MOD_SAMSUNG_64_32_TILE;
1314 formats[j].type = DRM_EXYNOS_IPP_FORMAT_SOURCE |
1315 DRM_EXYNOS_IPP_FORMAT_DESTINATION;
1316 formats[j].limits = limits;
1317 formats[j].num_limits = num_limits;
1318 }
1319
1320 ctx->formats = formats;
1321 ctx->num_formats = num_formats;
1322
1323 /* resource memory */
1324 ctx->regs_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
1325 ctx->regs = devm_ioremap_resource(dev, ctx->regs_res);
1326 if (IS_ERR(ctx->regs))
1327 return PTR_ERR(ctx->regs);
1328
1329 /* resource irq */
1330 res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
1331 if (!res) {
1332 dev_err(dev, "failed to request irq resource.\n");
1333 return -ENOENT;
1334 }
1335
1336 ret = devm_request_irq(dev, res->start, fimc_irq_handler,
1337 0, dev_name(dev), ctx);
1338 if (ret < 0) {
1339 dev_err(dev, "failed to request irq.\n");
1340 return ret;
1341 }
1342
1343 ret = fimc_setup_clocks(ctx);
1344 if (ret < 0)
1345 return ret;
1346
1347 spin_lock_init(&ctx->lock);
1348 platform_set_drvdata(pdev, ctx);
1349
1350 pm_runtime_use_autosuspend(dev);
1351 pm_runtime_set_autosuspend_delay(dev, FIMC_AUTOSUSPEND_DELAY);
1352 pm_runtime_enable(dev);
1353
1354 ret = component_add(dev, &fimc_component_ops);
1355 if (ret)
1356 goto err_pm_dis;
1357
1358 dev_info(dev, "drm fimc registered successfully.\n");
1359
1360 return 0;
1361
1362 err_pm_dis:
1363 pm_runtime_dont_use_autosuspend(dev);
1364 pm_runtime_disable(dev);
1365 fimc_put_clocks(ctx);
1366
1367 return ret;
1368 }
1369
1370 static int fimc_remove(struct platform_device *pdev)
1371 {
1372 struct device *dev = &pdev->dev;
1373 struct fimc_context *ctx = get_fimc_context(dev);
1374
1375 component_del(dev, &fimc_component_ops);
1376 pm_runtime_dont_use_autosuspend(dev);
1377 pm_runtime_disable(dev);
1378
1379 fimc_put_clocks(ctx);
1380
1381 return 0;
1382 }
1383
1384 #ifdef CONFIG_PM
1385 static int fimc_runtime_suspend(struct device *dev)
1386 {
1387 struct fimc_context *ctx = get_fimc_context(dev);
1388
1389 DRM_DEV_DEBUG_KMS(dev, "id[%d]\n", ctx->id);
1390 clk_disable_unprepare(ctx->clocks[FIMC_CLK_GATE]);
1391 return 0;
1392 }
1393
1394 static int fimc_runtime_resume(struct device *dev)
1395 {
1396 struct fimc_context *ctx = get_fimc_context(dev);
1397
1398 DRM_DEV_DEBUG_KMS(dev, "id[%d]\n", ctx->id);
1399 return clk_prepare_enable(ctx->clocks[FIMC_CLK_GATE]);
1400 }
1401 #endif
1402
1403 static const struct dev_pm_ops fimc_pm_ops = {
1404 SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
1405 pm_runtime_force_resume)
1406 SET_RUNTIME_PM_OPS(fimc_runtime_suspend, fimc_runtime_resume, NULL)
1407 };
1408
1409 static const struct of_device_id fimc_of_match[] = {
1410 { .compatible = "samsung,exynos4210-fimc" },
1411 { .compatible = "samsung,exynos4212-fimc" },
1412 { },
1413 };
1414 MODULE_DEVICE_TABLE(of, fimc_of_match);
1415
1416 struct platform_driver fimc_driver = {
1417 .probe = fimc_probe,
1418 .remove = fimc_remove,
1419 .driver = {
1420 .of_match_table = fimc_of_match,
1421 .name = "exynos-drm-fimc",
1422 .owner = THIS_MODULE,
1423 .pm = &fimc_pm_ops,
1424 },
1425 };
Linux with added FPC-III support