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Merge branches 'x86-cleanups-for-linus' and 'x86-cpufeature-for-linus' of git://git...
[deliverable/linux.git] / drivers / media / video / s5p-fimc / fimc-core.c
1 /*
2 * Samsung S5P/EXYNOS4 SoC series FIMC (CAMIF) driver
3 *
4 * Copyright (C) 2010-2012 Samsung Electronics Co., Ltd.
5 * Sylwester Nawrocki <s.nawrocki@samsung.com>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published
9 * by the Free Software Foundation, either version 2 of the License,
10 * or (at your option) any later version.
11 */
12
13 #include <linux/module.h>
14 #include <linux/kernel.h>
15 #include <linux/types.h>
16 #include <linux/errno.h>
17 #include <linux/bug.h>
18 #include <linux/interrupt.h>
19 #include <linux/device.h>
20 #include <linux/platform_device.h>
21 #include <linux/pm_runtime.h>
22 #include <linux/list.h>
23 #include <linux/io.h>
24 #include <linux/slab.h>
25 #include <linux/clk.h>
26 #include <media/v4l2-ioctl.h>
27 #include <media/videobuf2-core.h>
28 #include <media/videobuf2-dma-contig.h>
29
30 #include "fimc-core.h"
31 #include "fimc-reg.h"
32 #include "fimc-mdevice.h"
33
34 static char *fimc_clocks[MAX_FIMC_CLOCKS] = {
35 "sclk_fimc", "fimc"
36 };
37
38 static struct fimc_fmt fimc_formats[] = {
39 {
40 .name = "RGB565",
41 .fourcc = V4L2_PIX_FMT_RGB565,
42 .depth = { 16 },
43 .color = FIMC_FMT_RGB565,
44 .memplanes = 1,
45 .colplanes = 1,
46 .flags = FMT_FLAGS_M2M,
47 }, {
48 .name = "BGR666",
49 .fourcc = V4L2_PIX_FMT_BGR666,
50 .depth = { 32 },
51 .color = FIMC_FMT_RGB666,
52 .memplanes = 1,
53 .colplanes = 1,
54 .flags = FMT_FLAGS_M2M,
55 }, {
56 .name = "ARGB8888, 32 bpp",
57 .fourcc = V4L2_PIX_FMT_RGB32,
58 .depth = { 32 },
59 .color = FIMC_FMT_RGB888,
60 .memplanes = 1,
61 .colplanes = 1,
62 .flags = FMT_FLAGS_M2M | FMT_HAS_ALPHA,
63 }, {
64 .name = "ARGB1555",
65 .fourcc = V4L2_PIX_FMT_RGB555,
66 .depth = { 16 },
67 .color = FIMC_FMT_RGB555,
68 .memplanes = 1,
69 .colplanes = 1,
70 .flags = FMT_FLAGS_M2M_OUT | FMT_HAS_ALPHA,
71 }, {
72 .name = "ARGB4444",
73 .fourcc = V4L2_PIX_FMT_RGB444,
74 .depth = { 16 },
75 .color = FIMC_FMT_RGB444,
76 .memplanes = 1,
77 .colplanes = 1,
78 .flags = FMT_FLAGS_M2M_OUT | FMT_HAS_ALPHA,
79 }, {
80 .name = "YUV 4:2:2 packed, YCbYCr",
81 .fourcc = V4L2_PIX_FMT_YUYV,
82 .depth = { 16 },
83 .color = FIMC_FMT_YCBYCR422,
84 .memplanes = 1,
85 .colplanes = 1,
86 .mbus_code = V4L2_MBUS_FMT_YUYV8_2X8,
87 .flags = FMT_FLAGS_M2M | FMT_FLAGS_CAM,
88 }, {
89 .name = "YUV 4:2:2 packed, CbYCrY",
90 .fourcc = V4L2_PIX_FMT_UYVY,
91 .depth = { 16 },
92 .color = FIMC_FMT_CBYCRY422,
93 .memplanes = 1,
94 .colplanes = 1,
95 .mbus_code = V4L2_MBUS_FMT_UYVY8_2X8,
96 .flags = FMT_FLAGS_M2M | FMT_FLAGS_CAM,
97 }, {
98 .name = "YUV 4:2:2 packed, CrYCbY",
99 .fourcc = V4L2_PIX_FMT_VYUY,
100 .depth = { 16 },
101 .color = FIMC_FMT_CRYCBY422,
102 .memplanes = 1,
103 .colplanes = 1,
104 .mbus_code = V4L2_MBUS_FMT_VYUY8_2X8,
105 .flags = FMT_FLAGS_M2M | FMT_FLAGS_CAM,
106 }, {
107 .name = "YUV 4:2:2 packed, YCrYCb",
108 .fourcc = V4L2_PIX_FMT_YVYU,
109 .depth = { 16 },
110 .color = FIMC_FMT_YCRYCB422,
111 .memplanes = 1,
112 .colplanes = 1,
113 .mbus_code = V4L2_MBUS_FMT_YVYU8_2X8,
114 .flags = FMT_FLAGS_M2M | FMT_FLAGS_CAM,
115 }, {
116 .name = "YUV 4:2:2 planar, Y/Cb/Cr",
117 .fourcc = V4L2_PIX_FMT_YUV422P,
118 .depth = { 12 },
119 .color = FIMC_FMT_YCBYCR422,
120 .memplanes = 1,
121 .colplanes = 3,
122 .flags = FMT_FLAGS_M2M,
123 }, {
124 .name = "YUV 4:2:2 planar, Y/CbCr",
125 .fourcc = V4L2_PIX_FMT_NV16,
126 .depth = { 16 },
127 .color = FIMC_FMT_YCBYCR422,
128 .memplanes = 1,
129 .colplanes = 2,
130 .flags = FMT_FLAGS_M2M,
131 }, {
132 .name = "YUV 4:2:2 planar, Y/CrCb",
133 .fourcc = V4L2_PIX_FMT_NV61,
134 .depth = { 16 },
135 .color = FIMC_FMT_YCRYCB422,
136 .memplanes = 1,
137 .colplanes = 2,
138 .flags = FMT_FLAGS_M2M,
139 }, {
140 .name = "YUV 4:2:0 planar, YCbCr",
141 .fourcc = V4L2_PIX_FMT_YUV420,
142 .depth = { 12 },
143 .color = FIMC_FMT_YCBCR420,
144 .memplanes = 1,
145 .colplanes = 3,
146 .flags = FMT_FLAGS_M2M,
147 }, {
148 .name = "YUV 4:2:0 planar, Y/CbCr",
149 .fourcc = V4L2_PIX_FMT_NV12,
150 .depth = { 12 },
151 .color = FIMC_FMT_YCBCR420,
152 .memplanes = 1,
153 .colplanes = 2,
154 .flags = FMT_FLAGS_M2M,
155 }, {
156 .name = "YUV 4:2:0 non-contig. 2p, Y/CbCr",
157 .fourcc = V4L2_PIX_FMT_NV12M,
158 .color = FIMC_FMT_YCBCR420,
159 .depth = { 8, 4 },
160 .memplanes = 2,
161 .colplanes = 2,
162 .flags = FMT_FLAGS_M2M,
163 }, {
164 .name = "YUV 4:2:0 non-contig. 3p, Y/Cb/Cr",
165 .fourcc = V4L2_PIX_FMT_YUV420M,
166 .color = FIMC_FMT_YCBCR420,
167 .depth = { 8, 2, 2 },
168 .memplanes = 3,
169 .colplanes = 3,
170 .flags = FMT_FLAGS_M2M,
171 }, {
172 .name = "YUV 4:2:0 non-contig. 2p, tiled",
173 .fourcc = V4L2_PIX_FMT_NV12MT,
174 .color = FIMC_FMT_YCBCR420,
175 .depth = { 8, 4 },
176 .memplanes = 2,
177 .colplanes = 2,
178 .flags = FMT_FLAGS_M2M,
179 }, {
180 .name = "JPEG encoded data",
181 .fourcc = V4L2_PIX_FMT_JPEG,
182 .color = FIMC_FMT_JPEG,
183 .depth = { 8 },
184 .memplanes = 1,
185 .colplanes = 1,
186 .mbus_code = V4L2_MBUS_FMT_JPEG_1X8,
187 .flags = FMT_FLAGS_CAM,
188 },
189 };
190
191 struct fimc_fmt *fimc_get_format(unsigned int index)
192 {
193 if (index >= ARRAY_SIZE(fimc_formats))
194 return NULL;
195
196 return &fimc_formats[index];
197 }
198
199 int fimc_check_scaler_ratio(struct fimc_ctx *ctx, int sw, int sh,
200 int dw, int dh, int rotation)
201 {
202 if (rotation == 90 || rotation == 270)
203 swap(dw, dh);
204
205 if (!ctx->scaler.enabled)
206 return (sw == dw && sh == dh) ? 0 : -EINVAL;
207
208 if ((sw >= SCALER_MAX_HRATIO * dw) || (sh >= SCALER_MAX_VRATIO * dh))
209 return -EINVAL;
210
211 return 0;
212 }
213
214 static int fimc_get_scaler_factor(u32 src, u32 tar, u32 *ratio, u32 *shift)
215 {
216 u32 sh = 6;
217
218 if (src >= 64 * tar)
219 return -EINVAL;
220
221 while (sh--) {
222 u32 tmp = 1 << sh;
223 if (src >= tar * tmp) {
224 *shift = sh, *ratio = tmp;
225 return 0;
226 }
227 }
228 *shift = 0, *ratio = 1;
229 return 0;
230 }
231
232 int fimc_set_scaler_info(struct fimc_ctx *ctx)
233 {
234 struct fimc_variant *variant = ctx->fimc_dev->variant;
235 struct device *dev = &ctx->fimc_dev->pdev->dev;
236 struct fimc_scaler *sc = &ctx->scaler;
237 struct fimc_frame *s_frame = &ctx->s_frame;
238 struct fimc_frame *d_frame = &ctx->d_frame;
239 int tx, ty, sx, sy;
240 int ret;
241
242 if (ctx->rotation == 90 || ctx->rotation == 270) {
243 ty = d_frame->width;
244 tx = d_frame->height;
245 } else {
246 tx = d_frame->width;
247 ty = d_frame->height;
248 }
249 if (tx <= 0 || ty <= 0) {
250 dev_err(dev, "Invalid target size: %dx%d", tx, ty);
251 return -EINVAL;
252 }
253
254 sx = s_frame->width;
255 sy = s_frame->height;
256 if (sx <= 0 || sy <= 0) {
257 dev_err(dev, "Invalid source size: %dx%d", sx, sy);
258 return -EINVAL;
259 }
260 sc->real_width = sx;
261 sc->real_height = sy;
262
263 ret = fimc_get_scaler_factor(sx, tx, &sc->pre_hratio, &sc->hfactor);
264 if (ret)
265 return ret;
266
267 ret = fimc_get_scaler_factor(sy, ty, &sc->pre_vratio, &sc->vfactor);
268 if (ret)
269 return ret;
270
271 sc->pre_dst_width = sx / sc->pre_hratio;
272 sc->pre_dst_height = sy / sc->pre_vratio;
273
274 if (variant->has_mainscaler_ext) {
275 sc->main_hratio = (sx << 14) / (tx << sc->hfactor);
276 sc->main_vratio = (sy << 14) / (ty << sc->vfactor);
277 } else {
278 sc->main_hratio = (sx << 8) / (tx << sc->hfactor);
279 sc->main_vratio = (sy << 8) / (ty << sc->vfactor);
280
281 }
282
283 sc->scaleup_h = (tx >= sx) ? 1 : 0;
284 sc->scaleup_v = (ty >= sy) ? 1 : 0;
285
286 /* check to see if input and output size/format differ */
287 if (s_frame->fmt->color == d_frame->fmt->color
288 && s_frame->width == d_frame->width
289 && s_frame->height == d_frame->height)
290 sc->copy_mode = 1;
291 else
292 sc->copy_mode = 0;
293
294 return 0;
295 }
296
297 static irqreturn_t fimc_irq_handler(int irq, void *priv)
298 {
299 struct fimc_dev *fimc = priv;
300 struct fimc_ctx *ctx;
301
302 fimc_hw_clear_irq(fimc);
303
304 spin_lock(&fimc->slock);
305
306 if (test_and_clear_bit(ST_M2M_PEND, &fimc->state)) {
307 if (test_and_clear_bit(ST_M2M_SUSPENDING, &fimc->state)) {
308 set_bit(ST_M2M_SUSPENDED, &fimc->state);
309 wake_up(&fimc->irq_queue);
310 goto out;
311 }
312 ctx = v4l2_m2m_get_curr_priv(fimc->m2m.m2m_dev);
313 if (ctx != NULL) {
314 spin_unlock(&fimc->slock);
315 fimc_m2m_job_finish(ctx, VB2_BUF_STATE_DONE);
316
317 if (ctx->state & FIMC_CTX_SHUT) {
318 ctx->state &= ~FIMC_CTX_SHUT;
319 wake_up(&fimc->irq_queue);
320 }
321 return IRQ_HANDLED;
322 }
323 } else if (test_bit(ST_CAPT_PEND, &fimc->state)) {
324 int last_buf = test_bit(ST_CAPT_JPEG, &fimc->state) &&
325 fimc->vid_cap.reqbufs_count == 1;
326 fimc_capture_irq_handler(fimc, !last_buf);
327 }
328 out:
329 spin_unlock(&fimc->slock);
330 return IRQ_HANDLED;
331 }
332
333 /* The color format (colplanes, memplanes) must be already configured. */
334 int fimc_prepare_addr(struct fimc_ctx *ctx, struct vb2_buffer *vb,
335 struct fimc_frame *frame, struct fimc_addr *paddr)
336 {
337 int ret = 0;
338 u32 pix_size;
339
340 if (vb == NULL || frame == NULL)
341 return -EINVAL;
342
343 pix_size = frame->width * frame->height;
344
345 dbg("memplanes= %d, colplanes= %d, pix_size= %d",
346 frame->fmt->memplanes, frame->fmt->colplanes, pix_size);
347
348 paddr->y = vb2_dma_contig_plane_dma_addr(vb, 0);
349
350 if (frame->fmt->memplanes == 1) {
351 switch (frame->fmt->colplanes) {
352 case 1:
353 paddr->cb = 0;
354 paddr->cr = 0;
355 break;
356 case 2:
357 /* decompose Y into Y/Cb */
358 paddr->cb = (u32)(paddr->y + pix_size);
359 paddr->cr = 0;
360 break;
361 case 3:
362 paddr->cb = (u32)(paddr->y + pix_size);
363 /* decompose Y into Y/Cb/Cr */
364 if (FIMC_FMT_YCBCR420 == frame->fmt->color)
365 paddr->cr = (u32)(paddr->cb
366 + (pix_size >> 2));
367 else /* 422 */
368 paddr->cr = (u32)(paddr->cb
369 + (pix_size >> 1));
370 break;
371 default:
372 return -EINVAL;
373 }
374 } else {
375 if (frame->fmt->memplanes >= 2)
376 paddr->cb = vb2_dma_contig_plane_dma_addr(vb, 1);
377
378 if (frame->fmt->memplanes == 3)
379 paddr->cr = vb2_dma_contig_plane_dma_addr(vb, 2);
380 }
381
382 dbg("PHYS_ADDR: y= 0x%X cb= 0x%X cr= 0x%X ret= %d",
383 paddr->y, paddr->cb, paddr->cr, ret);
384
385 return ret;
386 }
387
388 /* Set order for 1 and 2 plane YCBCR 4:2:2 formats. */
389 void fimc_set_yuv_order(struct fimc_ctx *ctx)
390 {
391 /* The one only mode supported in SoC. */
392 ctx->in_order_2p = FIMC_REG_CIOCTRL_ORDER422_2P_LSB_CRCB;
393 ctx->out_order_2p = FIMC_REG_CIOCTRL_ORDER422_2P_LSB_CRCB;
394
395 /* Set order for 1 plane input formats. */
396 switch (ctx->s_frame.fmt->color) {
397 case FIMC_FMT_YCRYCB422:
398 ctx->in_order_1p = FIMC_REG_MSCTRL_ORDER422_CBYCRY;
399 break;
400 case FIMC_FMT_CBYCRY422:
401 ctx->in_order_1p = FIMC_REG_MSCTRL_ORDER422_YCRYCB;
402 break;
403 case FIMC_FMT_CRYCBY422:
404 ctx->in_order_1p = FIMC_REG_MSCTRL_ORDER422_YCBYCR;
405 break;
406 case FIMC_FMT_YCBYCR422:
407 default:
408 ctx->in_order_1p = FIMC_REG_MSCTRL_ORDER422_CRYCBY;
409 break;
410 }
411 dbg("ctx->in_order_1p= %d", ctx->in_order_1p);
412
413 switch (ctx->d_frame.fmt->color) {
414 case FIMC_FMT_YCRYCB422:
415 ctx->out_order_1p = FIMC_REG_CIOCTRL_ORDER422_CBYCRY;
416 break;
417 case FIMC_FMT_CBYCRY422:
418 ctx->out_order_1p = FIMC_REG_CIOCTRL_ORDER422_YCRYCB;
419 break;
420 case FIMC_FMT_CRYCBY422:
421 ctx->out_order_1p = FIMC_REG_CIOCTRL_ORDER422_YCBYCR;
422 break;
423 case FIMC_FMT_YCBYCR422:
424 default:
425 ctx->out_order_1p = FIMC_REG_CIOCTRL_ORDER422_CRYCBY;
426 break;
427 }
428 dbg("ctx->out_order_1p= %d", ctx->out_order_1p);
429 }
430
431 void fimc_prepare_dma_offset(struct fimc_ctx *ctx, struct fimc_frame *f)
432 {
433 struct fimc_variant *variant = ctx->fimc_dev->variant;
434 u32 i, depth = 0;
435
436 for (i = 0; i < f->fmt->colplanes; i++)
437 depth += f->fmt->depth[i];
438
439 f->dma_offset.y_h = f->offs_h;
440 if (!variant->pix_hoff)
441 f->dma_offset.y_h *= (depth >> 3);
442
443 f->dma_offset.y_v = f->offs_v;
444
445 f->dma_offset.cb_h = f->offs_h;
446 f->dma_offset.cb_v = f->offs_v;
447
448 f->dma_offset.cr_h = f->offs_h;
449 f->dma_offset.cr_v = f->offs_v;
450
451 if (!variant->pix_hoff) {
452 if (f->fmt->colplanes == 3) {
453 f->dma_offset.cb_h >>= 1;
454 f->dma_offset.cr_h >>= 1;
455 }
456 if (f->fmt->color == FIMC_FMT_YCBCR420) {
457 f->dma_offset.cb_v >>= 1;
458 f->dma_offset.cr_v >>= 1;
459 }
460 }
461
462 dbg("in_offset: color= %d, y_h= %d, y_v= %d",
463 f->fmt->color, f->dma_offset.y_h, f->dma_offset.y_v);
464 }
465
466 int fimc_set_color_effect(struct fimc_ctx *ctx, enum v4l2_colorfx colorfx)
467 {
468 struct fimc_effect *effect = &ctx->effect;
469
470 switch (colorfx) {
471 case V4L2_COLORFX_NONE:
472 effect->type = FIMC_REG_CIIMGEFF_FIN_BYPASS;
473 break;
474 case V4L2_COLORFX_BW:
475 effect->type = FIMC_REG_CIIMGEFF_FIN_ARBITRARY;
476 effect->pat_cb = 128;
477 effect->pat_cr = 128;
478 break;
479 case V4L2_COLORFX_SEPIA:
480 effect->type = FIMC_REG_CIIMGEFF_FIN_ARBITRARY;
481 effect->pat_cb = 115;
482 effect->pat_cr = 145;
483 break;
484 case V4L2_COLORFX_NEGATIVE:
485 effect->type = FIMC_REG_CIIMGEFF_FIN_NEGATIVE;
486 break;
487 case V4L2_COLORFX_EMBOSS:
488 effect->type = FIMC_REG_CIIMGEFF_FIN_EMBOSSING;
489 break;
490 case V4L2_COLORFX_ART_FREEZE:
491 effect->type = FIMC_REG_CIIMGEFF_FIN_ARTFREEZE;
492 break;
493 case V4L2_COLORFX_SILHOUETTE:
494 effect->type = FIMC_REG_CIIMGEFF_FIN_SILHOUETTE;
495 break;
496 case V4L2_COLORFX_SET_CBCR:
497 effect->type = FIMC_REG_CIIMGEFF_FIN_ARBITRARY;
498 effect->pat_cb = ctx->ctrls.colorfx_cbcr->val >> 8;
499 effect->pat_cr = ctx->ctrls.colorfx_cbcr->val & 0xff;
500 break;
501 default:
502 return -EINVAL;
503 }
504
505 return 0;
506 }
507
508 /*
509 * V4L2 controls handling
510 */
511 #define ctrl_to_ctx(__ctrl) \
512 container_of((__ctrl)->handler, struct fimc_ctx, ctrls.handler)
513
514 static int __fimc_s_ctrl(struct fimc_ctx *ctx, struct v4l2_ctrl *ctrl)
515 {
516 struct fimc_dev *fimc = ctx->fimc_dev;
517 struct fimc_variant *variant = fimc->variant;
518 unsigned int flags = FIMC_DST_FMT | FIMC_SRC_FMT;
519 int ret = 0;
520
521 if (ctrl->flags & V4L2_CTRL_FLAG_INACTIVE)
522 return 0;
523
524 switch (ctrl->id) {
525 case V4L2_CID_HFLIP:
526 ctx->hflip = ctrl->val;
527 break;
528
529 case V4L2_CID_VFLIP:
530 ctx->vflip = ctrl->val;
531 break;
532
533 case V4L2_CID_ROTATE:
534 if (fimc_capture_pending(fimc) ||
535 (ctx->state & flags) == flags) {
536 ret = fimc_check_scaler_ratio(ctx, ctx->s_frame.width,
537 ctx->s_frame.height, ctx->d_frame.width,
538 ctx->d_frame.height, ctrl->val);
539 if (ret)
540 return -EINVAL;
541 }
542 if ((ctrl->val == 90 || ctrl->val == 270) &&
543 !variant->has_out_rot)
544 return -EINVAL;
545
546 ctx->rotation = ctrl->val;
547 break;
548
549 case V4L2_CID_ALPHA_COMPONENT:
550 ctx->d_frame.alpha = ctrl->val;
551 break;
552
553 case V4L2_CID_COLORFX:
554 ret = fimc_set_color_effect(ctx, ctrl->val);
555 if (ret)
556 return ret;
557 break;
558 }
559
560 ctx->state |= FIMC_PARAMS;
561 set_bit(ST_CAPT_APPLY_CFG, &fimc->state);
562 return 0;
563 }
564
565 static int fimc_s_ctrl(struct v4l2_ctrl *ctrl)
566 {
567 struct fimc_ctx *ctx = ctrl_to_ctx(ctrl);
568 unsigned long flags;
569 int ret;
570
571 spin_lock_irqsave(&ctx->fimc_dev->slock, flags);
572 ret = __fimc_s_ctrl(ctx, ctrl);
573 spin_unlock_irqrestore(&ctx->fimc_dev->slock, flags);
574
575 return ret;
576 }
577
578 static const struct v4l2_ctrl_ops fimc_ctrl_ops = {
579 .s_ctrl = fimc_s_ctrl,
580 };
581
582 int fimc_ctrls_create(struct fimc_ctx *ctx)
583 {
584 struct fimc_variant *variant = ctx->fimc_dev->variant;
585 unsigned int max_alpha = fimc_get_alpha_mask(ctx->d_frame.fmt);
586 struct fimc_ctrls *ctrls = &ctx->ctrls;
587 struct v4l2_ctrl_handler *handler = &ctrls->handler;
588
589 if (ctx->ctrls.ready)
590 return 0;
591
592 v4l2_ctrl_handler_init(handler, 6);
593
594 ctrls->rotate = v4l2_ctrl_new_std(handler, &fimc_ctrl_ops,
595 V4L2_CID_ROTATE, 0, 270, 90, 0);
596 ctrls->hflip = v4l2_ctrl_new_std(handler, &fimc_ctrl_ops,
597 V4L2_CID_HFLIP, 0, 1, 1, 0);
598 ctrls->vflip = v4l2_ctrl_new_std(handler, &fimc_ctrl_ops,
599 V4L2_CID_VFLIP, 0, 1, 1, 0);
600
601 if (variant->has_alpha)
602 ctrls->alpha = v4l2_ctrl_new_std(handler, &fimc_ctrl_ops,
603 V4L2_CID_ALPHA_COMPONENT,
604 0, max_alpha, 1, 0);
605 else
606 ctrls->alpha = NULL;
607
608 ctrls->colorfx = v4l2_ctrl_new_std_menu(handler, &fimc_ctrl_ops,
609 V4L2_CID_COLORFX, V4L2_COLORFX_SET_CBCR,
610 ~0x983f, V4L2_COLORFX_NONE);
611
612 ctrls->colorfx_cbcr = v4l2_ctrl_new_std(handler, &fimc_ctrl_ops,
613 V4L2_CID_COLORFX_CBCR, 0, 0xffff, 1, 0);
614
615 ctx->effect.type = FIMC_REG_CIIMGEFF_FIN_BYPASS;
616
617 if (!handler->error) {
618 v4l2_ctrl_cluster(2, &ctrls->colorfx);
619 ctrls->ready = true;
620 }
621
622 return handler->error;
623 }
624
625 void fimc_ctrls_delete(struct fimc_ctx *ctx)
626 {
627 struct fimc_ctrls *ctrls = &ctx->ctrls;
628
629 if (ctrls->ready) {
630 v4l2_ctrl_handler_free(&ctrls->handler);
631 ctrls->ready = false;
632 ctrls->alpha = NULL;
633 }
634 }
635
636 void fimc_ctrls_activate(struct fimc_ctx *ctx, bool active)
637 {
638 unsigned int has_alpha = ctx->d_frame.fmt->flags & FMT_HAS_ALPHA;
639 struct fimc_ctrls *ctrls = &ctx->ctrls;
640
641 if (!ctrls->ready)
642 return;
643
644 mutex_lock(ctrls->handler.lock);
645 v4l2_ctrl_activate(ctrls->rotate, active);
646 v4l2_ctrl_activate(ctrls->hflip, active);
647 v4l2_ctrl_activate(ctrls->vflip, active);
648 v4l2_ctrl_activate(ctrls->colorfx, active);
649 if (ctrls->alpha)
650 v4l2_ctrl_activate(ctrls->alpha, active && has_alpha);
651
652 if (active) {
653 fimc_set_color_effect(ctx, ctrls->colorfx->cur.val);
654 ctx->rotation = ctrls->rotate->val;
655 ctx->hflip = ctrls->hflip->val;
656 ctx->vflip = ctrls->vflip->val;
657 } else {
658 ctx->effect.type = FIMC_REG_CIIMGEFF_FIN_BYPASS;
659 ctx->rotation = 0;
660 ctx->hflip = 0;
661 ctx->vflip = 0;
662 }
663 mutex_unlock(ctrls->handler.lock);
664 }
665
666 /* Update maximum value of the alpha color control */
667 void fimc_alpha_ctrl_update(struct fimc_ctx *ctx)
668 {
669 struct fimc_dev *fimc = ctx->fimc_dev;
670 struct v4l2_ctrl *ctrl = ctx->ctrls.alpha;
671
672 if (ctrl == NULL || !fimc->variant->has_alpha)
673 return;
674
675 v4l2_ctrl_lock(ctrl);
676 ctrl->maximum = fimc_get_alpha_mask(ctx->d_frame.fmt);
677
678 if (ctrl->cur.val > ctrl->maximum)
679 ctrl->cur.val = ctrl->maximum;
680
681 v4l2_ctrl_unlock(ctrl);
682 }
683
684 int fimc_fill_format(struct fimc_frame *frame, struct v4l2_format *f)
685 {
686 struct v4l2_pix_format_mplane *pixm = &f->fmt.pix_mp;
687 int i;
688
689 pixm->width = frame->o_width;
690 pixm->height = frame->o_height;
691 pixm->field = V4L2_FIELD_NONE;
692 pixm->pixelformat = frame->fmt->fourcc;
693 pixm->colorspace = V4L2_COLORSPACE_JPEG;
694 pixm->num_planes = frame->fmt->memplanes;
695
696 for (i = 0; i < pixm->num_planes; ++i) {
697 int bpl = frame->f_width;
698 if (frame->fmt->colplanes == 1) /* packed formats */
699 bpl = (bpl * frame->fmt->depth[0]) / 8;
700 pixm->plane_fmt[i].bytesperline = bpl;
701 pixm->plane_fmt[i].sizeimage = (frame->o_width *
702 frame->o_height * frame->fmt->depth[i]) / 8;
703 }
704 return 0;
705 }
706
707 void fimc_fill_frame(struct fimc_frame *frame, struct v4l2_format *f)
708 {
709 struct v4l2_pix_format_mplane *pixm = &f->fmt.pix_mp;
710
711 frame->f_width = pixm->plane_fmt[0].bytesperline;
712 if (frame->fmt->colplanes == 1)
713 frame->f_width = (frame->f_width * 8) / frame->fmt->depth[0];
714 frame->f_height = pixm->height;
715 frame->width = pixm->width;
716 frame->height = pixm->height;
717 frame->o_width = pixm->width;
718 frame->o_height = pixm->height;
719 frame->offs_h = 0;
720 frame->offs_v = 0;
721 }
722
723 /**
724 * fimc_adjust_mplane_format - adjust bytesperline/sizeimage for each plane
725 * @fmt: fimc pixel format description (input)
726 * @width: requested pixel width
727 * @height: requested pixel height
728 * @pix: multi-plane format to adjust
729 */
730 void fimc_adjust_mplane_format(struct fimc_fmt *fmt, u32 width, u32 height,
731 struct v4l2_pix_format_mplane *pix)
732 {
733 u32 bytesperline = 0;
734 int i;
735
736 pix->colorspace = V4L2_COLORSPACE_JPEG;
737 pix->field = V4L2_FIELD_NONE;
738 pix->num_planes = fmt->memplanes;
739 pix->pixelformat = fmt->fourcc;
740 pix->height = height;
741 pix->width = width;
742
743 for (i = 0; i < pix->num_planes; ++i) {
744 struct v4l2_plane_pix_format *plane_fmt = &pix->plane_fmt[i];
745 u32 bpl = plane_fmt->bytesperline;
746
747 if (fmt->colplanes > 1 && (bpl == 0 || bpl < pix->width))
748 bpl = pix->width; /* Planar */
749
750 if (fmt->colplanes == 1 && /* Packed */
751 (bpl == 0 || ((bpl * 8) / fmt->depth[i]) < pix->width))
752 bpl = (pix->width * fmt->depth[0]) / 8;
753
754 if (i == 0) /* Same bytesperline for each plane. */
755 bytesperline = bpl;
756
757 plane_fmt->bytesperline = bytesperline;
758 plane_fmt->sizeimage = max((pix->width * pix->height *
759 fmt->depth[i]) / 8, plane_fmt->sizeimage);
760 }
761 }
762
763 /**
764 * fimc_find_format - lookup fimc color format by fourcc or media bus format
765 * @pixelformat: fourcc to match, ignored if null
766 * @mbus_code: media bus code to match, ignored if null
767 * @mask: the color flags to match
768 * @index: offset in the fimc_formats array, ignored if negative
769 */
770 struct fimc_fmt *fimc_find_format(const u32 *pixelformat, const u32 *mbus_code,
771 unsigned int mask, int index)
772 {
773 struct fimc_fmt *fmt, *def_fmt = NULL;
774 unsigned int i;
775 int id = 0;
776
777 if (index >= (int)ARRAY_SIZE(fimc_formats))
778 return NULL;
779
780 for (i = 0; i < ARRAY_SIZE(fimc_formats); ++i) {
781 fmt = &fimc_formats[i];
782 if (!(fmt->flags & mask))
783 continue;
784 if (pixelformat && fmt->fourcc == *pixelformat)
785 return fmt;
786 if (mbus_code && fmt->mbus_code == *mbus_code)
787 return fmt;
788 if (index == id)
789 def_fmt = fmt;
790 id++;
791 }
792 return def_fmt;
793 }
794
795 static void fimc_clk_put(struct fimc_dev *fimc)
796 {
797 int i;
798 for (i = 0; i < MAX_FIMC_CLOCKS; i++) {
799 if (IS_ERR_OR_NULL(fimc->clock[i]))
800 continue;
801 clk_unprepare(fimc->clock[i]);
802 clk_put(fimc->clock[i]);
803 fimc->clock[i] = NULL;
804 }
805 }
806
807 static int fimc_clk_get(struct fimc_dev *fimc)
808 {
809 int i, ret;
810
811 for (i = 0; i < MAX_FIMC_CLOCKS; i++) {
812 fimc->clock[i] = clk_get(&fimc->pdev->dev, fimc_clocks[i]);
813 if (IS_ERR(fimc->clock[i]))
814 goto err;
815 ret = clk_prepare(fimc->clock[i]);
816 if (ret < 0) {
817 clk_put(fimc->clock[i]);
818 fimc->clock[i] = NULL;
819 goto err;
820 }
821 }
822 return 0;
823 err:
824 fimc_clk_put(fimc);
825 dev_err(&fimc->pdev->dev, "failed to get clock: %s\n",
826 fimc_clocks[i]);
827 return -ENXIO;
828 }
829
830 static int fimc_m2m_suspend(struct fimc_dev *fimc)
831 {
832 unsigned long flags;
833 int timeout;
834
835 spin_lock_irqsave(&fimc->slock, flags);
836 if (!fimc_m2m_pending(fimc)) {
837 spin_unlock_irqrestore(&fimc->slock, flags);
838 return 0;
839 }
840 clear_bit(ST_M2M_SUSPENDED, &fimc->state);
841 set_bit(ST_M2M_SUSPENDING, &fimc->state);
842 spin_unlock_irqrestore(&fimc->slock, flags);
843
844 timeout = wait_event_timeout(fimc->irq_queue,
845 test_bit(ST_M2M_SUSPENDED, &fimc->state),
846 FIMC_SHUTDOWN_TIMEOUT);
847
848 clear_bit(ST_M2M_SUSPENDING, &fimc->state);
849 return timeout == 0 ? -EAGAIN : 0;
850 }
851
852 static int fimc_m2m_resume(struct fimc_dev *fimc)
853 {
854 unsigned long flags;
855
856 spin_lock_irqsave(&fimc->slock, flags);
857 /* Clear for full H/W setup in first run after resume */
858 fimc->m2m.ctx = NULL;
859 spin_unlock_irqrestore(&fimc->slock, flags);
860
861 if (test_and_clear_bit(ST_M2M_SUSPENDED, &fimc->state))
862 fimc_m2m_job_finish(fimc->m2m.ctx,
863 VB2_BUF_STATE_ERROR);
864 return 0;
865 }
866
867 static int fimc_probe(struct platform_device *pdev)
868 {
869 struct fimc_drvdata *drv_data = fimc_get_drvdata(pdev);
870 struct s5p_platform_fimc *pdata;
871 struct fimc_dev *fimc;
872 struct resource *res;
873 int ret = 0;
874
875 if (pdev->id >= drv_data->num_entities) {
876 dev_err(&pdev->dev, "Invalid platform device id: %d\n",
877 pdev->id);
878 return -EINVAL;
879 }
880
881 fimc = devm_kzalloc(&pdev->dev, sizeof(*fimc), GFP_KERNEL);
882 if (!fimc)
883 return -ENOMEM;
884
885 fimc->id = pdev->id;
886
887 fimc->variant = drv_data->variant[fimc->id];
888 fimc->pdev = pdev;
889 pdata = pdev->dev.platform_data;
890 fimc->pdata = pdata;
891
892 init_waitqueue_head(&fimc->irq_queue);
893 spin_lock_init(&fimc->slock);
894 mutex_init(&fimc->lock);
895
896 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
897 fimc->regs = devm_request_and_ioremap(&pdev->dev, res);
898 if (fimc->regs == NULL) {
899 dev_err(&pdev->dev, "Failed to obtain io memory\n");
900 return -ENOENT;
901 }
902
903 res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
904 if (res == NULL) {
905 dev_err(&pdev->dev, "Failed to get IRQ resource\n");
906 return -ENXIO;
907 }
908
909 ret = fimc_clk_get(fimc);
910 if (ret)
911 return ret;
912 clk_set_rate(fimc->clock[CLK_BUS], drv_data->lclk_frequency);
913 clk_enable(fimc->clock[CLK_BUS]);
914
915 ret = devm_request_irq(&pdev->dev, res->start, fimc_irq_handler,
916 0, dev_name(&pdev->dev), fimc);
917 if (ret) {
918 dev_err(&pdev->dev, "failed to install irq (%d)\n", ret);
919 goto err_clk;
920 }
921
922 ret = fimc_initialize_capture_subdev(fimc);
923 if (ret)
924 goto err_clk;
925
926 platform_set_drvdata(pdev, fimc);
927 pm_runtime_enable(&pdev->dev);
928 ret = pm_runtime_get_sync(&pdev->dev);
929 if (ret < 0)
930 goto err_sd;
931 /* Initialize contiguous memory allocator */
932 fimc->alloc_ctx = vb2_dma_contig_init_ctx(&pdev->dev);
933 if (IS_ERR(fimc->alloc_ctx)) {
934 ret = PTR_ERR(fimc->alloc_ctx);
935 goto err_pm;
936 }
937
938 dev_dbg(&pdev->dev, "FIMC.%d registered successfully\n", fimc->id);
939
940 pm_runtime_put(&pdev->dev);
941 return 0;
942 err_pm:
943 pm_runtime_put(&pdev->dev);
944 err_sd:
945 fimc_unregister_capture_subdev(fimc);
946 err_clk:
947 fimc_clk_put(fimc);
948 return ret;
949 }
950
951 static int fimc_runtime_resume(struct device *dev)
952 {
953 struct fimc_dev *fimc = dev_get_drvdata(dev);
954
955 dbg("fimc%d: state: 0x%lx", fimc->id, fimc->state);
956
957 /* Enable clocks and perform basic initalization */
958 clk_enable(fimc->clock[CLK_GATE]);
959 fimc_hw_reset(fimc);
960
961 /* Resume the capture or mem-to-mem device */
962 if (fimc_capture_busy(fimc))
963 return fimc_capture_resume(fimc);
964
965 return fimc_m2m_resume(fimc);
966 }
967
968 static int fimc_runtime_suspend(struct device *dev)
969 {
970 struct fimc_dev *fimc = dev_get_drvdata(dev);
971 int ret = 0;
972
973 if (fimc_capture_busy(fimc))
974 ret = fimc_capture_suspend(fimc);
975 else
976 ret = fimc_m2m_suspend(fimc);
977 if (!ret)
978 clk_disable(fimc->clock[CLK_GATE]);
979
980 dbg("fimc%d: state: 0x%lx", fimc->id, fimc->state);
981 return ret;
982 }
983
984 #ifdef CONFIG_PM_SLEEP
985 static int fimc_resume(struct device *dev)
986 {
987 struct fimc_dev *fimc = dev_get_drvdata(dev);
988 unsigned long flags;
989
990 dbg("fimc%d: state: 0x%lx", fimc->id, fimc->state);
991
992 /* Do not resume if the device was idle before system suspend */
993 spin_lock_irqsave(&fimc->slock, flags);
994 if (!test_and_clear_bit(ST_LPM, &fimc->state) ||
995 (!fimc_m2m_active(fimc) && !fimc_capture_busy(fimc))) {
996 spin_unlock_irqrestore(&fimc->slock, flags);
997 return 0;
998 }
999 fimc_hw_reset(fimc);
1000 spin_unlock_irqrestore(&fimc->slock, flags);
1001
1002 if (fimc_capture_busy(fimc))
1003 return fimc_capture_resume(fimc);
1004
1005 return fimc_m2m_resume(fimc);
1006 }
1007
1008 static int fimc_suspend(struct device *dev)
1009 {
1010 struct fimc_dev *fimc = dev_get_drvdata(dev);
1011
1012 dbg("fimc%d: state: 0x%lx", fimc->id, fimc->state);
1013
1014 if (test_and_set_bit(ST_LPM, &fimc->state))
1015 return 0;
1016 if (fimc_capture_busy(fimc))
1017 return fimc_capture_suspend(fimc);
1018
1019 return fimc_m2m_suspend(fimc);
1020 }
1021 #endif /* CONFIG_PM_SLEEP */
1022
1023 static int __devexit fimc_remove(struct platform_device *pdev)
1024 {
1025 struct fimc_dev *fimc = platform_get_drvdata(pdev);
1026
1027 pm_runtime_disable(&pdev->dev);
1028 pm_runtime_set_suspended(&pdev->dev);
1029
1030 fimc_unregister_capture_subdev(fimc);
1031 vb2_dma_contig_cleanup_ctx(fimc->alloc_ctx);
1032
1033 clk_disable(fimc->clock[CLK_BUS]);
1034 fimc_clk_put(fimc);
1035
1036 dev_info(&pdev->dev, "driver unloaded\n");
1037 return 0;
1038 }
1039
1040 /* Image pixel limits, similar across several FIMC HW revisions. */
1041 static struct fimc_pix_limit s5p_pix_limit[4] = {
1042 [0] = {
1043 .scaler_en_w = 3264,
1044 .scaler_dis_w = 8192,
1045 .in_rot_en_h = 1920,
1046 .in_rot_dis_w = 8192,
1047 .out_rot_en_w = 1920,
1048 .out_rot_dis_w = 4224,
1049 },
1050 [1] = {
1051 .scaler_en_w = 4224,
1052 .scaler_dis_w = 8192,
1053 .in_rot_en_h = 1920,
1054 .in_rot_dis_w = 8192,
1055 .out_rot_en_w = 1920,
1056 .out_rot_dis_w = 4224,
1057 },
1058 [2] = {
1059 .scaler_en_w = 1920,
1060 .scaler_dis_w = 8192,
1061 .in_rot_en_h = 1280,
1062 .in_rot_dis_w = 8192,
1063 .out_rot_en_w = 1280,
1064 .out_rot_dis_w = 1920,
1065 },
1066 [3] = {
1067 .scaler_en_w = 1920,
1068 .scaler_dis_w = 8192,
1069 .in_rot_en_h = 1366,
1070 .in_rot_dis_w = 8192,
1071 .out_rot_en_w = 1366,
1072 .out_rot_dis_w = 1920,
1073 },
1074 };
1075
1076 static struct fimc_variant fimc0_variant_s5p = {
1077 .has_inp_rot = 1,
1078 .has_out_rot = 1,
1079 .has_cam_if = 1,
1080 .min_inp_pixsize = 16,
1081 .min_out_pixsize = 16,
1082 .hor_offs_align = 8,
1083 .min_vsize_align = 16,
1084 .out_buf_count = 4,
1085 .pix_limit = &s5p_pix_limit[0],
1086 };
1087
1088 static struct fimc_variant fimc2_variant_s5p = {
1089 .has_cam_if = 1,
1090 .min_inp_pixsize = 16,
1091 .min_out_pixsize = 16,
1092 .hor_offs_align = 8,
1093 .min_vsize_align = 16,
1094 .out_buf_count = 4,
1095 .pix_limit = &s5p_pix_limit[1],
1096 };
1097
1098 static struct fimc_variant fimc0_variant_s5pv210 = {
1099 .pix_hoff = 1,
1100 .has_inp_rot = 1,
1101 .has_out_rot = 1,
1102 .has_cam_if = 1,
1103 .min_inp_pixsize = 16,
1104 .min_out_pixsize = 16,
1105 .hor_offs_align = 8,
1106 .min_vsize_align = 16,
1107 .out_buf_count = 4,
1108 .pix_limit = &s5p_pix_limit[1],
1109 };
1110
1111 static struct fimc_variant fimc1_variant_s5pv210 = {
1112 .pix_hoff = 1,
1113 .has_inp_rot = 1,
1114 .has_out_rot = 1,
1115 .has_cam_if = 1,
1116 .has_mainscaler_ext = 1,
1117 .min_inp_pixsize = 16,
1118 .min_out_pixsize = 16,
1119 .hor_offs_align = 1,
1120 .min_vsize_align = 1,
1121 .out_buf_count = 4,
1122 .pix_limit = &s5p_pix_limit[2],
1123 };
1124
1125 static struct fimc_variant fimc2_variant_s5pv210 = {
1126 .has_cam_if = 1,
1127 .pix_hoff = 1,
1128 .min_inp_pixsize = 16,
1129 .min_out_pixsize = 16,
1130 .hor_offs_align = 8,
1131 .min_vsize_align = 16,
1132 .out_buf_count = 4,
1133 .pix_limit = &s5p_pix_limit[2],
1134 };
1135
1136 static struct fimc_variant fimc0_variant_exynos4 = {
1137 .pix_hoff = 1,
1138 .has_inp_rot = 1,
1139 .has_out_rot = 1,
1140 .has_cam_if = 1,
1141 .has_cistatus2 = 1,
1142 .has_mainscaler_ext = 1,
1143 .has_alpha = 1,
1144 .min_inp_pixsize = 16,
1145 .min_out_pixsize = 16,
1146 .hor_offs_align = 2,
1147 .min_vsize_align = 1,
1148 .out_buf_count = 32,
1149 .pix_limit = &s5p_pix_limit[1],
1150 };
1151
1152 static struct fimc_variant fimc3_variant_exynos4 = {
1153 .pix_hoff = 1,
1154 .has_cam_if = 1,
1155 .has_cistatus2 = 1,
1156 .has_mainscaler_ext = 1,
1157 .has_alpha = 1,
1158 .min_inp_pixsize = 16,
1159 .min_out_pixsize = 16,
1160 .hor_offs_align = 2,
1161 .min_vsize_align = 1,
1162 .out_buf_count = 32,
1163 .pix_limit = &s5p_pix_limit[3],
1164 };
1165
1166 /* S5PC100 */
1167 static struct fimc_drvdata fimc_drvdata_s5p = {
1168 .variant = {
1169 [0] = &fimc0_variant_s5p,
1170 [1] = &fimc0_variant_s5p,
1171 [2] = &fimc2_variant_s5p,
1172 },
1173 .num_entities = 3,
1174 .lclk_frequency = 133000000UL,
1175 };
1176
1177 /* S5PV210, S5PC110 */
1178 static struct fimc_drvdata fimc_drvdata_s5pv210 = {
1179 .variant = {
1180 [0] = &fimc0_variant_s5pv210,
1181 [1] = &fimc1_variant_s5pv210,
1182 [2] = &fimc2_variant_s5pv210,
1183 },
1184 .num_entities = 3,
1185 .lclk_frequency = 166000000UL,
1186 };
1187
1188 /* EXYNOS4210, S5PV310, S5PC210 */
1189 static struct fimc_drvdata fimc_drvdata_exynos4 = {
1190 .variant = {
1191 [0] = &fimc0_variant_exynos4,
1192 [1] = &fimc0_variant_exynos4,
1193 [2] = &fimc0_variant_exynos4,
1194 [3] = &fimc3_variant_exynos4,
1195 },
1196 .num_entities = 4,
1197 .lclk_frequency = 166000000UL,
1198 };
1199
1200 static struct platform_device_id fimc_driver_ids[] = {
1201 {
1202 .name = "s5p-fimc",
1203 .driver_data = (unsigned long)&fimc_drvdata_s5p,
1204 }, {
1205 .name = "s5pv210-fimc",
1206 .driver_data = (unsigned long)&fimc_drvdata_s5pv210,
1207 }, {
1208 .name = "exynos4-fimc",
1209 .driver_data = (unsigned long)&fimc_drvdata_exynos4,
1210 },
1211 {},
1212 };
1213 MODULE_DEVICE_TABLE(platform, fimc_driver_ids);
1214
1215 static const struct dev_pm_ops fimc_pm_ops = {
1216 SET_SYSTEM_SLEEP_PM_OPS(fimc_suspend, fimc_resume)
1217 SET_RUNTIME_PM_OPS(fimc_runtime_suspend, fimc_runtime_resume, NULL)
1218 };
1219
1220 static struct platform_driver fimc_driver = {
1221 .probe = fimc_probe,
1222 .remove = __devexit_p(fimc_remove),
1223 .id_table = fimc_driver_ids,
1224 .driver = {
1225 .name = FIMC_MODULE_NAME,
1226 .owner = THIS_MODULE,
1227 .pm = &fimc_pm_ops,
1228 }
1229 };
1230
1231 int __init fimc_register_driver(void)
1232 {
1233 return platform_driver_register(&fimc_driver);
1234 }
1235
1236 void __exit fimc_unregister_driver(void)
1237 {
1238 platform_driver_unregister(&fimc_driver);
1239 }
Linux kernel - Deliverables
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