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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / media / video / s5p-fimc / fimc-core.c
1 /*
2 * S5P camera interface (video postprocessor) driver
3 *
4 * Copyright (c) 2010 Samsung Electronics Co., Ltd
5 *
6 * Sylwester Nawrocki, <s.nawrocki@samsung.com>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published
10 * by the Free Software Foundation, either version 2 of the License,
11 * or (at your option) any later version.
12 */
13
14 #include <linux/module.h>
15 #include <linux/kernel.h>
16 #include <linux/version.h>
17 #include <linux/types.h>
18 #include <linux/errno.h>
19 #include <linux/bug.h>
20 #include <linux/interrupt.h>
21 #include <linux/device.h>
22 #include <linux/platform_device.h>
23 #include <linux/list.h>
24 #include <linux/io.h>
25 #include <linux/slab.h>
26 #include <linux/clk.h>
27 #include <media/v4l2-ioctl.h>
28 #include <media/videobuf2-core.h>
29 #include <media/videobuf2-dma-contig.h>
30
31 #include "fimc-core.h"
32
33 static char *fimc_clocks[MAX_FIMC_CLOCKS] = {
34 "sclk_fimc", "fimc", "sclk_cam"
35 };
36
37 static struct fimc_fmt fimc_formats[] = {
38 {
39 .name = "RGB565",
40 .fourcc = V4L2_PIX_FMT_RGB565X,
41 .depth = { 16 },
42 .color = S5P_FIMC_RGB565,
43 .memplanes = 1,
44 .colplanes = 1,
45 .mbus_code = V4L2_MBUS_FMT_RGB565_2X8_BE,
46 .flags = FMT_FLAGS_M2M,
47 }, {
48 .name = "BGR666",
49 .fourcc = V4L2_PIX_FMT_BGR666,
50 .depth = { 32 },
51 .color = S5P_FIMC_RGB666,
52 .memplanes = 1,
53 .colplanes = 1,
54 .flags = FMT_FLAGS_M2M,
55 }, {
56 .name = "XRGB-8-8-8-8, 32 bpp",
57 .fourcc = V4L2_PIX_FMT_RGB32,
58 .depth = { 32 },
59 .color = S5P_FIMC_RGB888,
60 .memplanes = 1,
61 .colplanes = 1,
62 .flags = FMT_FLAGS_M2M,
63 }, {
64 .name = "YUV 4:2:2 packed, YCbYCr",
65 .fourcc = V4L2_PIX_FMT_YUYV,
66 .depth = { 16 },
67 .color = S5P_FIMC_YCBYCR422,
68 .memplanes = 1,
69 .colplanes = 1,
70 .mbus_code = V4L2_MBUS_FMT_YUYV8_2X8,
71 .flags = FMT_FLAGS_M2M | FMT_FLAGS_CAM,
72 }, {
73 .name = "YUV 4:2:2 packed, CbYCrY",
74 .fourcc = V4L2_PIX_FMT_UYVY,
75 .depth = { 16 },
76 .color = S5P_FIMC_CBYCRY422,
77 .memplanes = 1,
78 .colplanes = 1,
79 .mbus_code = V4L2_MBUS_FMT_UYVY8_2X8,
80 .flags = FMT_FLAGS_M2M | FMT_FLAGS_CAM,
81 }, {
82 .name = "YUV 4:2:2 packed, CrYCbY",
83 .fourcc = V4L2_PIX_FMT_VYUY,
84 .depth = { 16 },
85 .color = S5P_FIMC_CRYCBY422,
86 .memplanes = 1,
87 .colplanes = 1,
88 .mbus_code = V4L2_MBUS_FMT_VYUY8_2X8,
89 .flags = FMT_FLAGS_M2M | FMT_FLAGS_CAM,
90 }, {
91 .name = "YUV 4:2:2 packed, YCrYCb",
92 .fourcc = V4L2_PIX_FMT_YVYU,
93 .depth = { 16 },
94 .color = S5P_FIMC_YCRYCB422,
95 .memplanes = 1,
96 .colplanes = 1,
97 .mbus_code = V4L2_MBUS_FMT_YVYU8_2X8,
98 .flags = FMT_FLAGS_M2M | FMT_FLAGS_CAM,
99 }, {
100 .name = "YUV 4:2:2 planar, Y/Cb/Cr",
101 .fourcc = V4L2_PIX_FMT_YUV422P,
102 .depth = { 12 },
103 .color = S5P_FIMC_YCBYCR422,
104 .memplanes = 1,
105 .colplanes = 3,
106 .flags = FMT_FLAGS_M2M,
107 }, {
108 .name = "YUV 4:2:2 planar, Y/CbCr",
109 .fourcc = V4L2_PIX_FMT_NV16,
110 .depth = { 16 },
111 .color = S5P_FIMC_YCBYCR422,
112 .memplanes = 1,
113 .colplanes = 2,
114 .flags = FMT_FLAGS_M2M,
115 }, {
116 .name = "YUV 4:2:2 planar, Y/CrCb",
117 .fourcc = V4L2_PIX_FMT_NV61,
118 .depth = { 16 },
119 .color = S5P_FIMC_YCRYCB422,
120 .memplanes = 1,
121 .colplanes = 2,
122 .flags = FMT_FLAGS_M2M,
123 }, {
124 .name = "YUV 4:2:0 planar, YCbCr",
125 .fourcc = V4L2_PIX_FMT_YUV420,
126 .depth = { 12 },
127 .color = S5P_FIMC_YCBCR420,
128 .memplanes = 1,
129 .colplanes = 3,
130 .flags = FMT_FLAGS_M2M,
131 }, {
132 .name = "YUV 4:2:0 planar, Y/CbCr",
133 .fourcc = V4L2_PIX_FMT_NV12,
134 .depth = { 12 },
135 .color = S5P_FIMC_YCBCR420,
136 .memplanes = 1,
137 .colplanes = 2,
138 .flags = FMT_FLAGS_M2M,
139 }, {
140 .name = "YUV 4:2:0 non-contiguous 2-planar, Y/CbCr",
141 .fourcc = V4L2_PIX_FMT_NV12M,
142 .color = S5P_FIMC_YCBCR420,
143 .depth = { 8, 4 },
144 .memplanes = 2,
145 .colplanes = 2,
146 .flags = FMT_FLAGS_M2M,
147 }, {
148 .name = "YUV 4:2:0 non-contiguous 3-planar, Y/Cb/Cr",
149 .fourcc = V4L2_PIX_FMT_YUV420M,
150 .color = S5P_FIMC_YCBCR420,
151 .depth = { 8, 2, 2 },
152 .memplanes = 3,
153 .colplanes = 3,
154 .flags = FMT_FLAGS_M2M,
155 }, {
156 .name = "YUV 4:2:0 non-contiguous 2-planar, Y/CbCr, tiled",
157 .fourcc = V4L2_PIX_FMT_NV12MT,
158 .color = S5P_FIMC_YCBCR420,
159 .depth = { 8, 4 },
160 .memplanes = 2,
161 .colplanes = 2,
162 .flags = FMT_FLAGS_M2M,
163 },
164 };
165
166 static struct v4l2_queryctrl fimc_ctrls[] = {
167 {
168 .id = V4L2_CID_HFLIP,
169 .type = V4L2_CTRL_TYPE_BOOLEAN,
170 .name = "Horizontal flip",
171 .minimum = 0,
172 .maximum = 1,
173 .default_value = 0,
174 }, {
175 .id = V4L2_CID_VFLIP,
176 .type = V4L2_CTRL_TYPE_BOOLEAN,
177 .name = "Vertical flip",
178 .minimum = 0,
179 .maximum = 1,
180 .default_value = 0,
181 }, {
182 .id = V4L2_CID_ROTATE,
183 .type = V4L2_CTRL_TYPE_INTEGER,
184 .name = "Rotation (CCW)",
185 .minimum = 0,
186 .maximum = 270,
187 .step = 90,
188 .default_value = 0,
189 },
190 };
191
192
193 static struct v4l2_queryctrl *get_ctrl(int id)
194 {
195 int i;
196
197 for (i = 0; i < ARRAY_SIZE(fimc_ctrls); ++i)
198 if (id == fimc_ctrls[i].id)
199 return &fimc_ctrls[i];
200 return NULL;
201 }
202
203 int fimc_check_scaler_ratio(int sw, int sh, int dw, int dh, int rot)
204 {
205 int tx, ty;
206
207 if (rot == 90 || rot == 270) {
208 ty = dw;
209 tx = dh;
210 } else {
211 tx = dw;
212 ty = dh;
213 }
214
215 if ((sw >= SCALER_MAX_HRATIO * tx) || (sh >= SCALER_MAX_VRATIO * ty))
216 return -EINVAL;
217
218 return 0;
219 }
220
221 static int fimc_get_scaler_factor(u32 src, u32 tar, u32 *ratio, u32 *shift)
222 {
223 u32 sh = 6;
224
225 if (src >= 64 * tar)
226 return -EINVAL;
227
228 while (sh--) {
229 u32 tmp = 1 << sh;
230 if (src >= tar * tmp) {
231 *shift = sh, *ratio = tmp;
232 return 0;
233 }
234 }
235
236 *shift = 0, *ratio = 1;
237
238 dbg("s: %d, t: %d, shift: %d, ratio: %d",
239 src, tar, *shift, *ratio);
240 return 0;
241 }
242
243 int fimc_set_scaler_info(struct fimc_ctx *ctx)
244 {
245 struct fimc_scaler *sc = &ctx->scaler;
246 struct fimc_frame *s_frame = &ctx->s_frame;
247 struct fimc_frame *d_frame = &ctx->d_frame;
248 struct samsung_fimc_variant *variant = ctx->fimc_dev->variant;
249 int tx, ty, sx, sy;
250 int ret;
251
252 if (ctx->rotation == 90 || ctx->rotation == 270) {
253 ty = d_frame->width;
254 tx = d_frame->height;
255 } else {
256 tx = d_frame->width;
257 ty = d_frame->height;
258 }
259 if (tx <= 0 || ty <= 0) {
260 v4l2_err(&ctx->fimc_dev->m2m.v4l2_dev,
261 "invalid target size: %d x %d", tx, ty);
262 return -EINVAL;
263 }
264
265 sx = s_frame->width;
266 sy = s_frame->height;
267 if (sx <= 0 || sy <= 0) {
268 err("invalid source size: %d x %d", sx, sy);
269 return -EINVAL;
270 }
271
272 sc->real_width = sx;
273 sc->real_height = sy;
274 dbg("sx= %d, sy= %d, tx= %d, ty= %d", sx, sy, tx, ty);
275
276 ret = fimc_get_scaler_factor(sx, tx, &sc->pre_hratio, &sc->hfactor);
277 if (ret)
278 return ret;
279
280 ret = fimc_get_scaler_factor(sy, ty, &sc->pre_vratio, &sc->vfactor);
281 if (ret)
282 return ret;
283
284 sc->pre_dst_width = sx / sc->pre_hratio;
285 sc->pre_dst_height = sy / sc->pre_vratio;
286
287 if (variant->has_mainscaler_ext) {
288 sc->main_hratio = (sx << 14) / (tx << sc->hfactor);
289 sc->main_vratio = (sy << 14) / (ty << sc->vfactor);
290 } else {
291 sc->main_hratio = (sx << 8) / (tx << sc->hfactor);
292 sc->main_vratio = (sy << 8) / (ty << sc->vfactor);
293
294 }
295
296 sc->scaleup_h = (tx >= sx) ? 1 : 0;
297 sc->scaleup_v = (ty >= sy) ? 1 : 0;
298
299 /* check to see if input and output size/format differ */
300 if (s_frame->fmt->color == d_frame->fmt->color
301 && s_frame->width == d_frame->width
302 && s_frame->height == d_frame->height)
303 sc->copy_mode = 1;
304 else
305 sc->copy_mode = 0;
306
307 return 0;
308 }
309
310 static void fimc_m2m_job_finish(struct fimc_ctx *ctx, int vb_state)
311 {
312 struct vb2_buffer *src_vb, *dst_vb;
313 struct fimc_dev *fimc = ctx->fimc_dev;
314
315 if (!ctx || !ctx->m2m_ctx)
316 return;
317
318 src_vb = v4l2_m2m_src_buf_remove(ctx->m2m_ctx);
319 dst_vb = v4l2_m2m_dst_buf_remove(ctx->m2m_ctx);
320
321 if (src_vb && dst_vb) {
322 v4l2_m2m_buf_done(src_vb, vb_state);
323 v4l2_m2m_buf_done(dst_vb, vb_state);
324 v4l2_m2m_job_finish(fimc->m2m.m2m_dev, ctx->m2m_ctx);
325 }
326 }
327
328 /* Complete the transaction which has been scheduled for execution. */
329 static void fimc_m2m_shutdown(struct fimc_ctx *ctx)
330 {
331 struct fimc_dev *fimc = ctx->fimc_dev;
332 int ret;
333
334 if (!fimc_m2m_pending(fimc))
335 return;
336
337 fimc_ctx_state_lock_set(FIMC_CTX_SHUT, ctx);
338
339 ret = wait_event_timeout(fimc->irq_queue,
340 !fimc_ctx_state_is_set(FIMC_CTX_SHUT, ctx),
341 FIMC_SHUTDOWN_TIMEOUT);
342 /*
343 * In case of a timeout the buffers are not released in the interrupt
344 * handler so return them here with the error flag set, if there are
345 * any on the queue.
346 */
347 if (ret == 0)
348 fimc_m2m_job_finish(ctx, VB2_BUF_STATE_ERROR);
349 }
350
351 static int stop_streaming(struct vb2_queue *q)
352 {
353 struct fimc_ctx *ctx = q->drv_priv;
354
355 fimc_m2m_shutdown(ctx);
356
357 return 0;
358 }
359
360 static void fimc_capture_irq_handler(struct fimc_dev *fimc)
361 {
362 struct fimc_vid_cap *cap = &fimc->vid_cap;
363 struct fimc_vid_buffer *v_buf;
364 struct timeval *tv;
365 struct timespec ts;
366
367 if (!list_empty(&cap->active_buf_q) &&
368 test_bit(ST_CAPT_RUN, &fimc->state)) {
369 ktime_get_real_ts(&ts);
370
371 v_buf = active_queue_pop(cap);
372
373 tv = &v_buf->vb.v4l2_buf.timestamp;
374 tv->tv_sec = ts.tv_sec;
375 tv->tv_usec = ts.tv_nsec / NSEC_PER_USEC;
376 v_buf->vb.v4l2_buf.sequence = cap->frame_count++;
377
378 vb2_buffer_done(&v_buf->vb, VB2_BUF_STATE_DONE);
379 }
380
381 if (test_and_clear_bit(ST_CAPT_SHUT, &fimc->state)) {
382 wake_up(&fimc->irq_queue);
383 return;
384 }
385
386 if (!list_empty(&cap->pending_buf_q)) {
387
388 v_buf = pending_queue_pop(cap);
389 fimc_hw_set_output_addr(fimc, &v_buf->paddr, cap->buf_index);
390 v_buf->index = cap->buf_index;
391
392 /* Move the buffer to the capture active queue */
393 active_queue_add(cap, v_buf);
394
395 dbg("next frame: %d, done frame: %d",
396 fimc_hw_get_frame_index(fimc), v_buf->index);
397
398 if (++cap->buf_index >= FIMC_MAX_OUT_BUFS)
399 cap->buf_index = 0;
400 }
401
402 if (cap->active_buf_cnt == 0) {
403 clear_bit(ST_CAPT_RUN, &fimc->state);
404
405 if (++cap->buf_index >= FIMC_MAX_OUT_BUFS)
406 cap->buf_index = 0;
407 } else {
408 set_bit(ST_CAPT_RUN, &fimc->state);
409 }
410
411 dbg("frame: %d, active_buf_cnt: %d",
412 fimc_hw_get_frame_index(fimc), cap->active_buf_cnt);
413 }
414
415 static irqreturn_t fimc_isr(int irq, void *priv)
416 {
417 struct fimc_dev *fimc = priv;
418 struct fimc_vid_cap *cap = &fimc->vid_cap;
419 struct fimc_ctx *ctx;
420
421 fimc_hw_clear_irq(fimc);
422
423 if (test_and_clear_bit(ST_M2M_PEND, &fimc->state)) {
424 ctx = v4l2_m2m_get_curr_priv(fimc->m2m.m2m_dev);
425 if (ctx != NULL) {
426 fimc_m2m_job_finish(ctx, VB2_BUF_STATE_DONE);
427
428 spin_lock(&ctx->slock);
429 if (ctx->state & FIMC_CTX_SHUT) {
430 ctx->state &= ~FIMC_CTX_SHUT;
431 wake_up(&fimc->irq_queue);
432 }
433 spin_unlock(&ctx->slock);
434 }
435
436 return IRQ_HANDLED;
437 }
438
439 spin_lock(&fimc->slock);
440
441 if (test_bit(ST_CAPT_PEND, &fimc->state)) {
442 fimc_capture_irq_handler(fimc);
443
444 if (cap->active_buf_cnt == 1) {
445 fimc_deactivate_capture(fimc);
446 clear_bit(ST_CAPT_STREAM, &fimc->state);
447 }
448 }
449
450 spin_unlock(&fimc->slock);
451 return IRQ_HANDLED;
452 }
453
454 /* The color format (colplanes, memplanes) must be already configured. */
455 int fimc_prepare_addr(struct fimc_ctx *ctx, struct vb2_buffer *vb,
456 struct fimc_frame *frame, struct fimc_addr *paddr)
457 {
458 int ret = 0;
459 u32 pix_size;
460
461 if (vb == NULL || frame == NULL)
462 return -EINVAL;
463
464 pix_size = frame->width * frame->height;
465
466 dbg("memplanes= %d, colplanes= %d, pix_size= %d",
467 frame->fmt->memplanes, frame->fmt->colplanes, pix_size);
468
469 paddr->y = vb2_dma_contig_plane_paddr(vb, 0);
470
471 if (frame->fmt->memplanes == 1) {
472 switch (frame->fmt->colplanes) {
473 case 1:
474 paddr->cb = 0;
475 paddr->cr = 0;
476 break;
477 case 2:
478 /* decompose Y into Y/Cb */
479 paddr->cb = (u32)(paddr->y + pix_size);
480 paddr->cr = 0;
481 break;
482 case 3:
483 paddr->cb = (u32)(paddr->y + pix_size);
484 /* decompose Y into Y/Cb/Cr */
485 if (S5P_FIMC_YCBCR420 == frame->fmt->color)
486 paddr->cr = (u32)(paddr->cb
487 + (pix_size >> 2));
488 else /* 422 */
489 paddr->cr = (u32)(paddr->cb
490 + (pix_size >> 1));
491 break;
492 default:
493 return -EINVAL;
494 }
495 } else {
496 if (frame->fmt->memplanes >= 2)
497 paddr->cb = vb2_dma_contig_plane_paddr(vb, 1);
498
499 if (frame->fmt->memplanes == 3)
500 paddr->cr = vb2_dma_contig_plane_paddr(vb, 2);
501 }
502
503 dbg("PHYS_ADDR: y= 0x%X cb= 0x%X cr= 0x%X ret= %d",
504 paddr->y, paddr->cb, paddr->cr, ret);
505
506 return ret;
507 }
508
509 /* Set order for 1 and 2 plane YCBCR 4:2:2 formats. */
510 static void fimc_set_yuv_order(struct fimc_ctx *ctx)
511 {
512 /* The one only mode supported in SoC. */
513 ctx->in_order_2p = S5P_FIMC_LSB_CRCB;
514 ctx->out_order_2p = S5P_FIMC_LSB_CRCB;
515
516 /* Set order for 1 plane input formats. */
517 switch (ctx->s_frame.fmt->color) {
518 case S5P_FIMC_YCRYCB422:
519 ctx->in_order_1p = S5P_MSCTRL_ORDER422_CBYCRY;
520 break;
521 case S5P_FIMC_CBYCRY422:
522 ctx->in_order_1p = S5P_MSCTRL_ORDER422_YCRYCB;
523 break;
524 case S5P_FIMC_CRYCBY422:
525 ctx->in_order_1p = S5P_MSCTRL_ORDER422_YCBYCR;
526 break;
527 case S5P_FIMC_YCBYCR422:
528 default:
529 ctx->in_order_1p = S5P_MSCTRL_ORDER422_CRYCBY;
530 break;
531 }
532 dbg("ctx->in_order_1p= %d", ctx->in_order_1p);
533
534 switch (ctx->d_frame.fmt->color) {
535 case S5P_FIMC_YCRYCB422:
536 ctx->out_order_1p = S5P_CIOCTRL_ORDER422_CBYCRY;
537 break;
538 case S5P_FIMC_CBYCRY422:
539 ctx->out_order_1p = S5P_CIOCTRL_ORDER422_YCRYCB;
540 break;
541 case S5P_FIMC_CRYCBY422:
542 ctx->out_order_1p = S5P_CIOCTRL_ORDER422_YCBYCR;
543 break;
544 case S5P_FIMC_YCBYCR422:
545 default:
546 ctx->out_order_1p = S5P_CIOCTRL_ORDER422_CRYCBY;
547 break;
548 }
549 dbg("ctx->out_order_1p= %d", ctx->out_order_1p);
550 }
551
552 static void fimc_prepare_dma_offset(struct fimc_ctx *ctx, struct fimc_frame *f)
553 {
554 struct samsung_fimc_variant *variant = ctx->fimc_dev->variant;
555 u32 i, depth = 0;
556
557 for (i = 0; i < f->fmt->colplanes; i++)
558 depth += f->fmt->depth[i];
559
560 f->dma_offset.y_h = f->offs_h;
561 if (!variant->pix_hoff)
562 f->dma_offset.y_h *= (depth >> 3);
563
564 f->dma_offset.y_v = f->offs_v;
565
566 f->dma_offset.cb_h = f->offs_h;
567 f->dma_offset.cb_v = f->offs_v;
568
569 f->dma_offset.cr_h = f->offs_h;
570 f->dma_offset.cr_v = f->offs_v;
571
572 if (!variant->pix_hoff) {
573 if (f->fmt->colplanes == 3) {
574 f->dma_offset.cb_h >>= 1;
575 f->dma_offset.cr_h >>= 1;
576 }
577 if (f->fmt->color == S5P_FIMC_YCBCR420) {
578 f->dma_offset.cb_v >>= 1;
579 f->dma_offset.cr_v >>= 1;
580 }
581 }
582
583 dbg("in_offset: color= %d, y_h= %d, y_v= %d",
584 f->fmt->color, f->dma_offset.y_h, f->dma_offset.y_v);
585 }
586
587 /**
588 * fimc_prepare_config - check dimensions, operation and color mode
589 * and pre-calculate offset and the scaling coefficients.
590 *
591 * @ctx: hardware context information
592 * @flags: flags indicating which parameters to check/update
593 *
594 * Return: 0 if dimensions are valid or non zero otherwise.
595 */
596 int fimc_prepare_config(struct fimc_ctx *ctx, u32 flags)
597 {
598 struct fimc_frame *s_frame, *d_frame;
599 struct vb2_buffer *vb = NULL;
600 int ret = 0;
601
602 s_frame = &ctx->s_frame;
603 d_frame = &ctx->d_frame;
604
605 if (flags & FIMC_PARAMS) {
606 /* Prepare the DMA offset ratios for scaler. */
607 fimc_prepare_dma_offset(ctx, &ctx->s_frame);
608 fimc_prepare_dma_offset(ctx, &ctx->d_frame);
609
610 if (s_frame->height > (SCALER_MAX_VRATIO * d_frame->height) ||
611 s_frame->width > (SCALER_MAX_HRATIO * d_frame->width)) {
612 err("out of scaler range");
613 return -EINVAL;
614 }
615 fimc_set_yuv_order(ctx);
616 }
617
618 /* Input DMA mode is not allowed when the scaler is disabled. */
619 ctx->scaler.enabled = 1;
620
621 if (flags & FIMC_SRC_ADDR) {
622 vb = v4l2_m2m_next_src_buf(ctx->m2m_ctx);
623 ret = fimc_prepare_addr(ctx, vb, s_frame, &s_frame->paddr);
624 if (ret)
625 return ret;
626 }
627
628 if (flags & FIMC_DST_ADDR) {
629 vb = v4l2_m2m_next_dst_buf(ctx->m2m_ctx);
630 ret = fimc_prepare_addr(ctx, vb, d_frame, &d_frame->paddr);
631 }
632
633 return ret;
634 }
635
636 static void fimc_dma_run(void *priv)
637 {
638 struct fimc_ctx *ctx = priv;
639 struct fimc_dev *fimc;
640 unsigned long flags;
641 u32 ret;
642
643 if (WARN(!ctx, "null hardware context\n"))
644 return;
645
646 fimc = ctx->fimc_dev;
647
648 spin_lock_irqsave(&ctx->slock, flags);
649 set_bit(ST_M2M_PEND, &fimc->state);
650
651 ctx->state |= (FIMC_SRC_ADDR | FIMC_DST_ADDR);
652 ret = fimc_prepare_config(ctx, ctx->state);
653 if (ret)
654 goto dma_unlock;
655
656 /* Reconfigure hardware if the context has changed. */
657 if (fimc->m2m.ctx != ctx) {
658 ctx->state |= FIMC_PARAMS;
659 fimc->m2m.ctx = ctx;
660 }
661
662 spin_lock(&fimc->slock);
663 fimc_hw_set_input_addr(fimc, &ctx->s_frame.paddr);
664
665 if (ctx->state & FIMC_PARAMS) {
666 fimc_hw_set_input_path(ctx);
667 fimc_hw_set_in_dma(ctx);
668 ret = fimc_set_scaler_info(ctx);
669 if (ret) {
670 spin_unlock(&fimc->slock);
671 goto dma_unlock;
672 }
673 fimc_hw_set_prescaler(ctx);
674 fimc_hw_set_mainscaler(ctx);
675 fimc_hw_set_target_format(ctx);
676 fimc_hw_set_rotation(ctx);
677 fimc_hw_set_effect(ctx);
678 }
679
680 fimc_hw_set_output_path(ctx);
681 if (ctx->state & (FIMC_DST_ADDR | FIMC_PARAMS))
682 fimc_hw_set_output_addr(fimc, &ctx->d_frame.paddr, -1);
683
684 if (ctx->state & FIMC_PARAMS)
685 fimc_hw_set_out_dma(ctx);
686
687 fimc_activate_capture(ctx);
688
689 ctx->state &= (FIMC_CTX_M2M | FIMC_CTX_CAP |
690 FIMC_SRC_FMT | FIMC_DST_FMT);
691 fimc_hw_activate_input_dma(fimc, true);
692 spin_unlock(&fimc->slock);
693
694 dma_unlock:
695 spin_unlock_irqrestore(&ctx->slock, flags);
696 }
697
698 static void fimc_job_abort(void *priv)
699 {
700 fimc_m2m_shutdown(priv);
701 }
702
703 static int fimc_queue_setup(struct vb2_queue *vq, unsigned int *num_buffers,
704 unsigned int *num_planes, unsigned long sizes[],
705 void *allocators[])
706 {
707 struct fimc_ctx *ctx = vb2_get_drv_priv(vq);
708 struct fimc_frame *f;
709 int i;
710
711 f = ctx_get_frame(ctx, vq->type);
712 if (IS_ERR(f))
713 return PTR_ERR(f);
714
715 /*
716 * Return number of non-contigous planes (plane buffers)
717 * depending on the configured color format.
718 */
719 if (f->fmt)
720 *num_planes = f->fmt->memplanes;
721
722 for (i = 0; i < f->fmt->memplanes; i++) {
723 sizes[i] = (f->width * f->height * f->fmt->depth[i]) >> 3;
724 allocators[i] = ctx->fimc_dev->alloc_ctx;
725 }
726
727 if (*num_buffers == 0)
728 *num_buffers = 1;
729
730 return 0;
731 }
732
733 static int fimc_buf_prepare(struct vb2_buffer *vb)
734 {
735 struct fimc_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
736 struct fimc_frame *frame;
737 int i;
738
739 frame = ctx_get_frame(ctx, vb->vb2_queue->type);
740 if (IS_ERR(frame))
741 return PTR_ERR(frame);
742
743 for (i = 0; i < frame->fmt->memplanes; i++)
744 vb2_set_plane_payload(vb, i, frame->payload[i]);
745
746 return 0;
747 }
748
749 static void fimc_buf_queue(struct vb2_buffer *vb)
750 {
751 struct fimc_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
752
753 dbg("ctx: %p, ctx->state: 0x%x", ctx, ctx->state);
754
755 if (ctx->m2m_ctx)
756 v4l2_m2m_buf_queue(ctx->m2m_ctx, vb);
757 }
758
759 static void fimc_lock(struct vb2_queue *vq)
760 {
761 struct fimc_ctx *ctx = vb2_get_drv_priv(vq);
762 mutex_lock(&ctx->fimc_dev->lock);
763 }
764
765 static void fimc_unlock(struct vb2_queue *vq)
766 {
767 struct fimc_ctx *ctx = vb2_get_drv_priv(vq);
768 mutex_unlock(&ctx->fimc_dev->lock);
769 }
770
771 static struct vb2_ops fimc_qops = {
772 .queue_setup = fimc_queue_setup,
773 .buf_prepare = fimc_buf_prepare,
774 .buf_queue = fimc_buf_queue,
775 .wait_prepare = fimc_unlock,
776 .wait_finish = fimc_lock,
777 .stop_streaming = stop_streaming,
778 };
779
780 static int fimc_m2m_querycap(struct file *file, void *priv,
781 struct v4l2_capability *cap)
782 {
783 struct fimc_ctx *ctx = file->private_data;
784 struct fimc_dev *fimc = ctx->fimc_dev;
785
786 strncpy(cap->driver, fimc->pdev->name, sizeof(cap->driver) - 1);
787 strncpy(cap->card, fimc->pdev->name, sizeof(cap->card) - 1);
788 cap->bus_info[0] = 0;
789 cap->version = KERNEL_VERSION(1, 0, 0);
790 cap->capabilities = V4L2_CAP_STREAMING |
791 V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_VIDEO_OUTPUT |
792 V4L2_CAP_VIDEO_CAPTURE_MPLANE | V4L2_CAP_VIDEO_OUTPUT_MPLANE;
793
794 return 0;
795 }
796
797 int fimc_vidioc_enum_fmt_mplane(struct file *file, void *priv,
798 struct v4l2_fmtdesc *f)
799 {
800 struct fimc_fmt *fmt;
801
802 if (f->index >= ARRAY_SIZE(fimc_formats))
803 return -EINVAL;
804
805 fmt = &fimc_formats[f->index];
806 strncpy(f->description, fmt->name, sizeof(f->description) - 1);
807 f->pixelformat = fmt->fourcc;
808
809 return 0;
810 }
811
812 int fimc_vidioc_g_fmt_mplane(struct file *file, void *priv,
813 struct v4l2_format *f)
814 {
815 struct fimc_ctx *ctx = priv;
816 struct fimc_frame *frame;
817 struct v4l2_pix_format_mplane *pixm;
818 int i;
819
820 frame = ctx_get_frame(ctx, f->type);
821 if (IS_ERR(frame))
822 return PTR_ERR(frame);
823
824 pixm = &f->fmt.pix_mp;
825
826 pixm->width = frame->width;
827 pixm->height = frame->height;
828 pixm->field = V4L2_FIELD_NONE;
829 pixm->pixelformat = frame->fmt->fourcc;
830 pixm->colorspace = V4L2_COLORSPACE_JPEG;
831 pixm->num_planes = frame->fmt->memplanes;
832
833 for (i = 0; i < pixm->num_planes; ++i) {
834 int bpl = frame->o_width;
835
836 if (frame->fmt->colplanes == 1) /* packed formats */
837 bpl = (bpl * frame->fmt->depth[0]) / 8;
838
839 pixm->plane_fmt[i].bytesperline = bpl;
840
841 pixm->plane_fmt[i].sizeimage = (frame->o_width *
842 frame->o_height * frame->fmt->depth[i]) / 8;
843 }
844
845 return 0;
846 }
847
848 struct fimc_fmt *find_format(struct v4l2_format *f, unsigned int mask)
849 {
850 struct fimc_fmt *fmt;
851 unsigned int i;
852
853 for (i = 0; i < ARRAY_SIZE(fimc_formats); ++i) {
854 fmt = &fimc_formats[i];
855 if (fmt->fourcc == f->fmt.pix.pixelformat &&
856 (fmt->flags & mask))
857 break;
858 }
859
860 return (i == ARRAY_SIZE(fimc_formats)) ? NULL : fmt;
861 }
862
863 struct fimc_fmt *find_mbus_format(struct v4l2_mbus_framefmt *f,
864 unsigned int mask)
865 {
866 struct fimc_fmt *fmt;
867 unsigned int i;
868
869 for (i = 0; i < ARRAY_SIZE(fimc_formats); ++i) {
870 fmt = &fimc_formats[i];
871 if (fmt->mbus_code == f->code && (fmt->flags & mask))
872 break;
873 }
874
875 return (i == ARRAY_SIZE(fimc_formats)) ? NULL : fmt;
876 }
877
878
879 int fimc_vidioc_try_fmt_mplane(struct file *file, void *priv,
880 struct v4l2_format *f)
881 {
882 struct fimc_ctx *ctx = priv;
883 struct fimc_dev *fimc = ctx->fimc_dev;
884 struct samsung_fimc_variant *variant = fimc->variant;
885 struct v4l2_pix_format_mplane *pix = &f->fmt.pix_mp;
886 struct fimc_fmt *fmt;
887 u32 max_width, mod_x, mod_y, mask;
888 int i, is_output = 0;
889
890
891 if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
892 if (fimc_ctx_state_is_set(FIMC_CTX_CAP, ctx))
893 return -EINVAL;
894 is_output = 1;
895 } else if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
896 return -EINVAL;
897 }
898
899 dbg("w: %d, h: %d", pix->width, pix->height);
900
901 mask = is_output ? FMT_FLAGS_M2M : FMT_FLAGS_M2M | FMT_FLAGS_CAM;
902 fmt = find_format(f, mask);
903 if (!fmt) {
904 v4l2_err(&fimc->m2m.v4l2_dev, "Fourcc format (0x%X) invalid.\n",
905 pix->pixelformat);
906 return -EINVAL;
907 }
908
909 if (pix->field == V4L2_FIELD_ANY)
910 pix->field = V4L2_FIELD_NONE;
911 else if (V4L2_FIELD_NONE != pix->field)
912 return -EINVAL;
913
914 if (is_output) {
915 max_width = variant->pix_limit->scaler_dis_w;
916 mod_x = ffs(variant->min_inp_pixsize) - 1;
917 } else {
918 max_width = variant->pix_limit->out_rot_dis_w;
919 mod_x = ffs(variant->min_out_pixsize) - 1;
920 }
921
922 if (tiled_fmt(fmt)) {
923 mod_x = 6; /* 64 x 32 pixels tile */
924 mod_y = 5;
925 } else {
926 if (fimc->id == 1 && variant->pix_hoff)
927 mod_y = fimc_fmt_is_rgb(fmt->color) ? 0 : 1;
928 else
929 mod_y = mod_x;
930 }
931
932 dbg("mod_x: %d, mod_y: %d, max_w: %d", mod_x, mod_y, max_width);
933
934 v4l_bound_align_image(&pix->width, 16, max_width, mod_x,
935 &pix->height, 8, variant->pix_limit->scaler_dis_w, mod_y, 0);
936
937 pix->num_planes = fmt->memplanes;
938 pix->colorspace = V4L2_COLORSPACE_JPEG;
939
940
941 for (i = 0; i < pix->num_planes; ++i) {
942 u32 bpl = pix->plane_fmt[i].bytesperline;
943 u32 *sizeimage = &pix->plane_fmt[i].sizeimage;
944
945 if (fmt->colplanes > 1 && (bpl == 0 || bpl < pix->width))
946 bpl = pix->width; /* Planar */
947
948 if (fmt->colplanes == 1 && /* Packed */
949 (bpl == 0 || ((bpl * 8) / fmt->depth[i]) < pix->width))
950 bpl = (pix->width * fmt->depth[0]) / 8;
951
952 if (i == 0) /* Same bytesperline for each plane. */
953 mod_x = bpl;
954
955 pix->plane_fmt[i].bytesperline = mod_x;
956 *sizeimage = (pix->width * pix->height * fmt->depth[i]) / 8;
957 }
958
959 return 0;
960 }
961
962 static int fimc_m2m_s_fmt_mplane(struct file *file, void *priv,
963 struct v4l2_format *f)
964 {
965 struct fimc_ctx *ctx = priv;
966 struct fimc_dev *fimc = ctx->fimc_dev;
967 struct vb2_queue *vq;
968 struct fimc_frame *frame;
969 struct v4l2_pix_format_mplane *pix;
970 int i, ret = 0;
971
972 ret = fimc_vidioc_try_fmt_mplane(file, priv, f);
973 if (ret)
974 return ret;
975
976 vq = v4l2_m2m_get_vq(ctx->m2m_ctx, f->type);
977
978 if (vb2_is_busy(vq)) {
979 v4l2_err(&fimc->m2m.v4l2_dev, "queue (%d) busy\n", f->type);
980 return -EBUSY;
981 }
982
983 if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
984 frame = &ctx->s_frame;
985 } else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
986 frame = &ctx->d_frame;
987 } else {
988 v4l2_err(&fimc->m2m.v4l2_dev,
989 "Wrong buffer/video queue type (%d)\n", f->type);
990 return -EINVAL;
991 }
992
993 pix = &f->fmt.pix_mp;
994 frame->fmt = find_format(f, FMT_FLAGS_M2M);
995 if (!frame->fmt)
996 return -EINVAL;
997
998 for (i = 0; i < frame->fmt->colplanes; i++) {
999 frame->payload[i] =
1000 (pix->width * pix->height * frame->fmt->depth[i]) / 8;
1001 }
1002
1003 frame->f_width = pix->plane_fmt[0].bytesperline * 8 /
1004 frame->fmt->depth[0];
1005 frame->f_height = pix->height;
1006 frame->width = pix->width;
1007 frame->height = pix->height;
1008 frame->o_width = pix->width;
1009 frame->o_height = pix->height;
1010 frame->offs_h = 0;
1011 frame->offs_v = 0;
1012
1013 if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
1014 fimc_ctx_state_lock_set(FIMC_PARAMS | FIMC_DST_FMT, ctx);
1015 else
1016 fimc_ctx_state_lock_set(FIMC_PARAMS | FIMC_SRC_FMT, ctx);
1017
1018 dbg("f_w: %d, f_h: %d", frame->f_width, frame->f_height);
1019
1020 return 0;
1021 }
1022
1023 static int fimc_m2m_reqbufs(struct file *file, void *priv,
1024 struct v4l2_requestbuffers *reqbufs)
1025 {
1026 struct fimc_ctx *ctx = priv;
1027 return v4l2_m2m_reqbufs(file, ctx->m2m_ctx, reqbufs);
1028 }
1029
1030 static int fimc_m2m_querybuf(struct file *file, void *priv,
1031 struct v4l2_buffer *buf)
1032 {
1033 struct fimc_ctx *ctx = priv;
1034 return v4l2_m2m_querybuf(file, ctx->m2m_ctx, buf);
1035 }
1036
1037 static int fimc_m2m_qbuf(struct file *file, void *priv,
1038 struct v4l2_buffer *buf)
1039 {
1040 struct fimc_ctx *ctx = priv;
1041
1042 return v4l2_m2m_qbuf(file, ctx->m2m_ctx, buf);
1043 }
1044
1045 static int fimc_m2m_dqbuf(struct file *file, void *priv,
1046 struct v4l2_buffer *buf)
1047 {
1048 struct fimc_ctx *ctx = priv;
1049 return v4l2_m2m_dqbuf(file, ctx->m2m_ctx, buf);
1050 }
1051
1052 static int fimc_m2m_streamon(struct file *file, void *priv,
1053 enum v4l2_buf_type type)
1054 {
1055 struct fimc_ctx *ctx = priv;
1056
1057 /* The source and target color format need to be set */
1058 if (V4L2_TYPE_IS_OUTPUT(type)) {
1059 if (!fimc_ctx_state_is_set(FIMC_SRC_FMT, ctx))
1060 return -EINVAL;
1061 } else if (!fimc_ctx_state_is_set(FIMC_DST_FMT, ctx)) {
1062 return -EINVAL;
1063 }
1064
1065 return v4l2_m2m_streamon(file, ctx->m2m_ctx, type);
1066 }
1067
1068 static int fimc_m2m_streamoff(struct file *file, void *priv,
1069 enum v4l2_buf_type type)
1070 {
1071 struct fimc_ctx *ctx = priv;
1072 return v4l2_m2m_streamoff(file, ctx->m2m_ctx, type);
1073 }
1074
1075 int fimc_vidioc_queryctrl(struct file *file, void *priv,
1076 struct v4l2_queryctrl *qc)
1077 {
1078 struct fimc_ctx *ctx = priv;
1079 struct v4l2_queryctrl *c;
1080 int ret = -EINVAL;
1081
1082 c = get_ctrl(qc->id);
1083 if (c) {
1084 *qc = *c;
1085 return 0;
1086 }
1087
1088 if (fimc_ctx_state_is_set(FIMC_CTX_CAP, ctx)) {
1089 return v4l2_subdev_call(ctx->fimc_dev->vid_cap.sd,
1090 core, queryctrl, qc);
1091 }
1092 return ret;
1093 }
1094
1095 int fimc_vidioc_g_ctrl(struct file *file, void *priv,
1096 struct v4l2_control *ctrl)
1097 {
1098 struct fimc_ctx *ctx = priv;
1099 struct fimc_dev *fimc = ctx->fimc_dev;
1100
1101 switch (ctrl->id) {
1102 case V4L2_CID_HFLIP:
1103 ctrl->value = (FLIP_X_AXIS & ctx->flip) ? 1 : 0;
1104 break;
1105 case V4L2_CID_VFLIP:
1106 ctrl->value = (FLIP_Y_AXIS & ctx->flip) ? 1 : 0;
1107 break;
1108 case V4L2_CID_ROTATE:
1109 ctrl->value = ctx->rotation;
1110 break;
1111 default:
1112 if (fimc_ctx_state_is_set(FIMC_CTX_CAP, ctx)) {
1113 return v4l2_subdev_call(fimc->vid_cap.sd, core,
1114 g_ctrl, ctrl);
1115 } else {
1116 v4l2_err(&fimc->m2m.v4l2_dev, "Invalid control\n");
1117 return -EINVAL;
1118 }
1119 }
1120 dbg("ctrl->value= %d", ctrl->value);
1121
1122 return 0;
1123 }
1124
1125 int check_ctrl_val(struct fimc_ctx *ctx, struct v4l2_control *ctrl)
1126 {
1127 struct v4l2_queryctrl *c;
1128 c = get_ctrl(ctrl->id);
1129 if (!c)
1130 return -EINVAL;
1131
1132 if (ctrl->value < c->minimum || ctrl->value > c->maximum
1133 || (c->step != 0 && ctrl->value % c->step != 0)) {
1134 v4l2_err(&ctx->fimc_dev->m2m.v4l2_dev,
1135 "Invalid control value\n");
1136 return -ERANGE;
1137 }
1138
1139 return 0;
1140 }
1141
1142 int fimc_s_ctrl(struct fimc_ctx *ctx, struct v4l2_control *ctrl)
1143 {
1144 struct samsung_fimc_variant *variant = ctx->fimc_dev->variant;
1145 struct fimc_dev *fimc = ctx->fimc_dev;
1146 int ret = 0;
1147
1148 switch (ctrl->id) {
1149 case V4L2_CID_HFLIP:
1150 if (ctrl->value)
1151 ctx->flip |= FLIP_X_AXIS;
1152 else
1153 ctx->flip &= ~FLIP_X_AXIS;
1154 break;
1155
1156 case V4L2_CID_VFLIP:
1157 if (ctrl->value)
1158 ctx->flip |= FLIP_Y_AXIS;
1159 else
1160 ctx->flip &= ~FLIP_Y_AXIS;
1161 break;
1162
1163 case V4L2_CID_ROTATE:
1164 if (fimc_ctx_state_is_set(FIMC_DST_FMT | FIMC_SRC_FMT, ctx)) {
1165 ret = fimc_check_scaler_ratio(ctx->s_frame.width,
1166 ctx->s_frame.height, ctx->d_frame.width,
1167 ctx->d_frame.height, ctrl->value);
1168 }
1169
1170 if (ret) {
1171 v4l2_err(&fimc->m2m.v4l2_dev, "Out of scaler range\n");
1172 return -EINVAL;
1173 }
1174
1175 /* Check for the output rotator availability */
1176 if ((ctrl->value == 90 || ctrl->value == 270) &&
1177 (ctx->in_path == FIMC_DMA && !variant->has_out_rot))
1178 return -EINVAL;
1179 ctx->rotation = ctrl->value;
1180 break;
1181
1182 default:
1183 v4l2_err(&fimc->m2m.v4l2_dev, "Invalid control\n");
1184 return -EINVAL;
1185 }
1186
1187 fimc_ctx_state_lock_set(FIMC_PARAMS, ctx);
1188
1189 return 0;
1190 }
1191
1192 static int fimc_m2m_s_ctrl(struct file *file, void *priv,
1193 struct v4l2_control *ctrl)
1194 {
1195 struct fimc_ctx *ctx = priv;
1196 int ret = 0;
1197
1198 ret = check_ctrl_val(ctx, ctrl);
1199 if (ret)
1200 return ret;
1201
1202 ret = fimc_s_ctrl(ctx, ctrl);
1203 return 0;
1204 }
1205
1206 static int fimc_m2m_cropcap(struct file *file, void *fh,
1207 struct v4l2_cropcap *cr)
1208 {
1209 struct fimc_frame *frame;
1210 struct fimc_ctx *ctx = fh;
1211
1212 frame = ctx_get_frame(ctx, cr->type);
1213 if (IS_ERR(frame))
1214 return PTR_ERR(frame);
1215
1216 cr->bounds.left = 0;
1217 cr->bounds.top = 0;
1218 cr->bounds.width = frame->f_width;
1219 cr->bounds.height = frame->f_height;
1220 cr->defrect = cr->bounds;
1221
1222 return 0;
1223 }
1224
1225 static int fimc_m2m_g_crop(struct file *file, void *fh, struct v4l2_crop *cr)
1226 {
1227 struct fimc_frame *frame;
1228 struct fimc_ctx *ctx = file->private_data;
1229
1230 frame = ctx_get_frame(ctx, cr->type);
1231 if (IS_ERR(frame))
1232 return PTR_ERR(frame);
1233
1234 cr->c.left = frame->offs_h;
1235 cr->c.top = frame->offs_v;
1236 cr->c.width = frame->width;
1237 cr->c.height = frame->height;
1238
1239 return 0;
1240 }
1241
1242 int fimc_try_crop(struct fimc_ctx *ctx, struct v4l2_crop *cr)
1243 {
1244 struct fimc_dev *fimc = ctx->fimc_dev;
1245 struct fimc_frame *f;
1246 u32 min_size, halign, depth = 0;
1247 bool is_capture_ctx;
1248 int i;
1249
1250 if (cr->c.top < 0 || cr->c.left < 0) {
1251 v4l2_err(&fimc->m2m.v4l2_dev,
1252 "doesn't support negative values for top & left\n");
1253 return -EINVAL;
1254 }
1255
1256 is_capture_ctx = fimc_ctx_state_is_set(FIMC_CTX_CAP, ctx);
1257
1258 if (cr->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
1259 f = is_capture_ctx ? &ctx->s_frame : &ctx->d_frame;
1260 else if (cr->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE &&
1261 !is_capture_ctx)
1262 f = &ctx->s_frame;
1263 else
1264 return -EINVAL;
1265
1266 min_size = (f == &ctx->s_frame) ?
1267 fimc->variant->min_inp_pixsize : fimc->variant->min_out_pixsize;
1268
1269 /* Get pixel alignment constraints. */
1270 if (is_capture_ctx) {
1271 min_size = 16;
1272 halign = 4;
1273 } else {
1274 if (fimc->id == 1 && fimc->variant->pix_hoff)
1275 halign = fimc_fmt_is_rgb(f->fmt->color) ? 0 : 1;
1276 else
1277 halign = ffs(min_size) - 1;
1278 }
1279
1280 for (i = 0; i < f->fmt->colplanes; i++)
1281 depth += f->fmt->depth[i];
1282
1283 v4l_bound_align_image(&cr->c.width, min_size, f->o_width,
1284 ffs(min_size) - 1,
1285 &cr->c.height, min_size, f->o_height,
1286 halign, 64/(ALIGN(depth, 8)));
1287
1288 /* adjust left/top if cropping rectangle is out of bounds */
1289 if (cr->c.left + cr->c.width > f->o_width)
1290 cr->c.left = f->o_width - cr->c.width;
1291 if (cr->c.top + cr->c.height > f->o_height)
1292 cr->c.top = f->o_height - cr->c.height;
1293
1294 cr->c.left = round_down(cr->c.left, min_size);
1295 cr->c.top = round_down(cr->c.top, is_capture_ctx ? 16 : 8);
1296
1297 dbg("l:%d, t:%d, w:%d, h:%d, f_w: %d, f_h: %d",
1298 cr->c.left, cr->c.top, cr->c.width, cr->c.height,
1299 f->f_width, f->f_height);
1300
1301 return 0;
1302 }
1303
1304 static int fimc_m2m_s_crop(struct file *file, void *fh, struct v4l2_crop *cr)
1305 {
1306 struct fimc_ctx *ctx = file->private_data;
1307 struct fimc_dev *fimc = ctx->fimc_dev;
1308 struct fimc_frame *f;
1309 int ret;
1310
1311 ret = fimc_try_crop(ctx, cr);
1312 if (ret)
1313 return ret;
1314
1315 f = (cr->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) ?
1316 &ctx->s_frame : &ctx->d_frame;
1317
1318 /* Check to see if scaling ratio is within supported range */
1319 if (fimc_ctx_state_is_set(FIMC_DST_FMT | FIMC_SRC_FMT, ctx)) {
1320 if (cr->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
1321 ret = fimc_check_scaler_ratio(cr->c.width, cr->c.height,
1322 ctx->d_frame.width,
1323 ctx->d_frame.height,
1324 ctx->rotation);
1325 } else {
1326 ret = fimc_check_scaler_ratio(ctx->s_frame.width,
1327 ctx->s_frame.height,
1328 cr->c.width, cr->c.height,
1329 ctx->rotation);
1330 }
1331 if (ret) {
1332 v4l2_err(&fimc->m2m.v4l2_dev, "Out of scaler range\n");
1333 return -EINVAL;
1334 }
1335 }
1336
1337 f->offs_h = cr->c.left;
1338 f->offs_v = cr->c.top;
1339 f->width = cr->c.width;
1340 f->height = cr->c.height;
1341
1342 fimc_ctx_state_lock_set(FIMC_PARAMS, ctx);
1343
1344 return 0;
1345 }
1346
1347 static const struct v4l2_ioctl_ops fimc_m2m_ioctl_ops = {
1348 .vidioc_querycap = fimc_m2m_querycap,
1349
1350 .vidioc_enum_fmt_vid_cap_mplane = fimc_vidioc_enum_fmt_mplane,
1351 .vidioc_enum_fmt_vid_out_mplane = fimc_vidioc_enum_fmt_mplane,
1352
1353 .vidioc_g_fmt_vid_cap_mplane = fimc_vidioc_g_fmt_mplane,
1354 .vidioc_g_fmt_vid_out_mplane = fimc_vidioc_g_fmt_mplane,
1355
1356 .vidioc_try_fmt_vid_cap_mplane = fimc_vidioc_try_fmt_mplane,
1357 .vidioc_try_fmt_vid_out_mplane = fimc_vidioc_try_fmt_mplane,
1358
1359 .vidioc_s_fmt_vid_cap_mplane = fimc_m2m_s_fmt_mplane,
1360 .vidioc_s_fmt_vid_out_mplane = fimc_m2m_s_fmt_mplane,
1361
1362 .vidioc_reqbufs = fimc_m2m_reqbufs,
1363 .vidioc_querybuf = fimc_m2m_querybuf,
1364
1365 .vidioc_qbuf = fimc_m2m_qbuf,
1366 .vidioc_dqbuf = fimc_m2m_dqbuf,
1367
1368 .vidioc_streamon = fimc_m2m_streamon,
1369 .vidioc_streamoff = fimc_m2m_streamoff,
1370
1371 .vidioc_queryctrl = fimc_vidioc_queryctrl,
1372 .vidioc_g_ctrl = fimc_vidioc_g_ctrl,
1373 .vidioc_s_ctrl = fimc_m2m_s_ctrl,
1374
1375 .vidioc_g_crop = fimc_m2m_g_crop,
1376 .vidioc_s_crop = fimc_m2m_s_crop,
1377 .vidioc_cropcap = fimc_m2m_cropcap
1378
1379 };
1380
1381 static int queue_init(void *priv, struct vb2_queue *src_vq,
1382 struct vb2_queue *dst_vq)
1383 {
1384 struct fimc_ctx *ctx = priv;
1385 int ret;
1386
1387 memset(src_vq, 0, sizeof(*src_vq));
1388 src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
1389 src_vq->io_modes = VB2_MMAP | VB2_USERPTR;
1390 src_vq->drv_priv = ctx;
1391 src_vq->ops = &fimc_qops;
1392 src_vq->mem_ops = &vb2_dma_contig_memops;
1393 src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
1394
1395 ret = vb2_queue_init(src_vq);
1396 if (ret)
1397 return ret;
1398
1399 memset(dst_vq, 0, sizeof(*dst_vq));
1400 dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
1401 dst_vq->io_modes = VB2_MMAP | VB2_USERPTR;
1402 dst_vq->drv_priv = ctx;
1403 dst_vq->ops = &fimc_qops;
1404 dst_vq->mem_ops = &vb2_dma_contig_memops;
1405 dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
1406
1407 return vb2_queue_init(dst_vq);
1408 }
1409
1410 static int fimc_m2m_open(struct file *file)
1411 {
1412 struct fimc_dev *fimc = video_drvdata(file);
1413 struct fimc_ctx *ctx = NULL;
1414
1415 dbg("pid: %d, state: 0x%lx, refcnt: %d",
1416 task_pid_nr(current), fimc->state, fimc->vid_cap.refcnt);
1417
1418 /*
1419 * Return if the corresponding video capture node
1420 * is already opened.
1421 */
1422 if (fimc->vid_cap.refcnt > 0)
1423 return -EBUSY;
1424
1425 fimc->m2m.refcnt++;
1426 set_bit(ST_OUTDMA_RUN, &fimc->state);
1427
1428 ctx = kzalloc(sizeof *ctx, GFP_KERNEL);
1429 if (!ctx)
1430 return -ENOMEM;
1431
1432 file->private_data = ctx;
1433 ctx->fimc_dev = fimc;
1434 /* Default color format */
1435 ctx->s_frame.fmt = &fimc_formats[0];
1436 ctx->d_frame.fmt = &fimc_formats[0];
1437 /* Setup the device context for mem2mem mode. */
1438 ctx->state = FIMC_CTX_M2M;
1439 ctx->flags = 0;
1440 ctx->in_path = FIMC_DMA;
1441 ctx->out_path = FIMC_DMA;
1442 spin_lock_init(&ctx->slock);
1443
1444 ctx->m2m_ctx = v4l2_m2m_ctx_init(fimc->m2m.m2m_dev, ctx, queue_init);
1445 if (IS_ERR(ctx->m2m_ctx)) {
1446 int err = PTR_ERR(ctx->m2m_ctx);
1447 kfree(ctx);
1448 return err;
1449 }
1450
1451 return 0;
1452 }
1453
1454 static int fimc_m2m_release(struct file *file)
1455 {
1456 struct fimc_ctx *ctx = file->private_data;
1457 struct fimc_dev *fimc = ctx->fimc_dev;
1458
1459 dbg("pid: %d, state: 0x%lx, refcnt= %d",
1460 task_pid_nr(current), fimc->state, fimc->m2m.refcnt);
1461
1462 v4l2_m2m_ctx_release(ctx->m2m_ctx);
1463 kfree(ctx);
1464 if (--fimc->m2m.refcnt <= 0)
1465 clear_bit(ST_OUTDMA_RUN, &fimc->state);
1466
1467 return 0;
1468 }
1469
1470 static unsigned int fimc_m2m_poll(struct file *file,
1471 struct poll_table_struct *wait)
1472 {
1473 struct fimc_ctx *ctx = file->private_data;
1474
1475 return v4l2_m2m_poll(file, ctx->m2m_ctx, wait);
1476 }
1477
1478
1479 static int fimc_m2m_mmap(struct file *file, struct vm_area_struct *vma)
1480 {
1481 struct fimc_ctx *ctx = file->private_data;
1482
1483 return v4l2_m2m_mmap(file, ctx->m2m_ctx, vma);
1484 }
1485
1486 static const struct v4l2_file_operations fimc_m2m_fops = {
1487 .owner = THIS_MODULE,
1488 .open = fimc_m2m_open,
1489 .release = fimc_m2m_release,
1490 .poll = fimc_m2m_poll,
1491 .unlocked_ioctl = video_ioctl2,
1492 .mmap = fimc_m2m_mmap,
1493 };
1494
1495 static struct v4l2_m2m_ops m2m_ops = {
1496 .device_run = fimc_dma_run,
1497 .job_abort = fimc_job_abort,
1498 };
1499
1500 static int fimc_register_m2m_device(struct fimc_dev *fimc)
1501 {
1502 struct video_device *vfd;
1503 struct platform_device *pdev;
1504 struct v4l2_device *v4l2_dev;
1505 int ret = 0;
1506
1507 if (!fimc)
1508 return -ENODEV;
1509
1510 pdev = fimc->pdev;
1511 v4l2_dev = &fimc->m2m.v4l2_dev;
1512
1513 /* set name if it is empty */
1514 if (!v4l2_dev->name[0])
1515 snprintf(v4l2_dev->name, sizeof(v4l2_dev->name),
1516 "%s.m2m", dev_name(&pdev->dev));
1517
1518 ret = v4l2_device_register(&pdev->dev, v4l2_dev);
1519 if (ret)
1520 goto err_m2m_r1;
1521
1522 vfd = video_device_alloc();
1523 if (!vfd) {
1524 v4l2_err(v4l2_dev, "Failed to allocate video device\n");
1525 goto err_m2m_r1;
1526 }
1527
1528 vfd->fops = &fimc_m2m_fops;
1529 vfd->ioctl_ops = &fimc_m2m_ioctl_ops;
1530 vfd->minor = -1;
1531 vfd->release = video_device_release;
1532 vfd->lock = &fimc->lock;
1533
1534 snprintf(vfd->name, sizeof(vfd->name), "%s:m2m", dev_name(&pdev->dev));
1535
1536 video_set_drvdata(vfd, fimc);
1537 platform_set_drvdata(pdev, fimc);
1538
1539 fimc->m2m.vfd = vfd;
1540 fimc->m2m.m2m_dev = v4l2_m2m_init(&m2m_ops);
1541 if (IS_ERR(fimc->m2m.m2m_dev)) {
1542 v4l2_err(v4l2_dev, "failed to initialize v4l2-m2m device\n");
1543 ret = PTR_ERR(fimc->m2m.m2m_dev);
1544 goto err_m2m_r2;
1545 }
1546
1547 ret = video_register_device(vfd, VFL_TYPE_GRABBER, -1);
1548 if (ret) {
1549 v4l2_err(v4l2_dev,
1550 "%s(): failed to register video device\n", __func__);
1551 goto err_m2m_r3;
1552 }
1553 v4l2_info(v4l2_dev,
1554 "FIMC m2m driver registered as /dev/video%d\n", vfd->num);
1555
1556 return 0;
1557
1558 err_m2m_r3:
1559 v4l2_m2m_release(fimc->m2m.m2m_dev);
1560 err_m2m_r2:
1561 video_device_release(fimc->m2m.vfd);
1562 err_m2m_r1:
1563 v4l2_device_unregister(v4l2_dev);
1564
1565 return ret;
1566 }
1567
1568 static void fimc_unregister_m2m_device(struct fimc_dev *fimc)
1569 {
1570 if (fimc) {
1571 v4l2_m2m_release(fimc->m2m.m2m_dev);
1572 video_unregister_device(fimc->m2m.vfd);
1573
1574 v4l2_device_unregister(&fimc->m2m.v4l2_dev);
1575 }
1576 }
1577
1578 static void fimc_clk_release(struct fimc_dev *fimc)
1579 {
1580 int i;
1581 for (i = 0; i < fimc->num_clocks; i++) {
1582 if (fimc->clock[i]) {
1583 clk_disable(fimc->clock[i]);
1584 clk_put(fimc->clock[i]);
1585 }
1586 }
1587 }
1588
1589 static int fimc_clk_get(struct fimc_dev *fimc)
1590 {
1591 int i;
1592 for (i = 0; i < fimc->num_clocks; i++) {
1593 fimc->clock[i] = clk_get(&fimc->pdev->dev, fimc_clocks[i]);
1594
1595 if (!IS_ERR_OR_NULL(fimc->clock[i])) {
1596 clk_enable(fimc->clock[i]);
1597 continue;
1598 }
1599 dev_err(&fimc->pdev->dev, "failed to get fimc clock: %s\n",
1600 fimc_clocks[i]);
1601 return -ENXIO;
1602 }
1603 return 0;
1604 }
1605
1606 static int fimc_probe(struct platform_device *pdev)
1607 {
1608 struct fimc_dev *fimc;
1609 struct resource *res;
1610 struct samsung_fimc_driverdata *drv_data;
1611 struct s5p_platform_fimc *pdata;
1612 int ret = 0;
1613 int cap_input_index = -1;
1614
1615 dev_dbg(&pdev->dev, "%s():\n", __func__);
1616
1617 drv_data = (struct samsung_fimc_driverdata *)
1618 platform_get_device_id(pdev)->driver_data;
1619
1620 if (pdev->id >= drv_data->num_entities) {
1621 dev_err(&pdev->dev, "Invalid platform device id: %d\n",
1622 pdev->id);
1623 return -EINVAL;
1624 }
1625
1626 fimc = kzalloc(sizeof(struct fimc_dev), GFP_KERNEL);
1627 if (!fimc)
1628 return -ENOMEM;
1629
1630 fimc->id = pdev->id;
1631 fimc->variant = drv_data->variant[fimc->id];
1632 fimc->pdev = pdev;
1633 pdata = pdev->dev.platform_data;
1634 fimc->pdata = pdata;
1635 fimc->state = ST_IDLE;
1636
1637 init_waitqueue_head(&fimc->irq_queue);
1638 spin_lock_init(&fimc->slock);
1639
1640 mutex_init(&fimc->lock);
1641
1642 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
1643 if (!res) {
1644 dev_err(&pdev->dev, "failed to find the registers\n");
1645 ret = -ENOENT;
1646 goto err_info;
1647 }
1648
1649 fimc->regs_res = request_mem_region(res->start, resource_size(res),
1650 dev_name(&pdev->dev));
1651 if (!fimc->regs_res) {
1652 dev_err(&pdev->dev, "failed to obtain register region\n");
1653 ret = -ENOENT;
1654 goto err_info;
1655 }
1656
1657 fimc->regs = ioremap(res->start, resource_size(res));
1658 if (!fimc->regs) {
1659 dev_err(&pdev->dev, "failed to map registers\n");
1660 ret = -ENXIO;
1661 goto err_req_region;
1662 }
1663
1664 fimc->num_clocks = MAX_FIMC_CLOCKS - 1;
1665
1666 /* Check if a video capture node needs to be registered. */
1667 if (pdata && pdata->num_clients > 0) {
1668 cap_input_index = 0;
1669 fimc->num_clocks++;
1670 }
1671
1672 ret = fimc_clk_get(fimc);
1673 if (ret)
1674 goto err_regs_unmap;
1675 clk_set_rate(fimc->clock[CLK_BUS], drv_data->lclk_frequency);
1676
1677 res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
1678 if (!res) {
1679 dev_err(&pdev->dev, "failed to get IRQ resource\n");
1680 ret = -ENXIO;
1681 goto err_clk;
1682 }
1683 fimc->irq = res->start;
1684
1685 fimc_hw_reset(fimc);
1686
1687 ret = request_irq(fimc->irq, fimc_isr, 0, pdev->name, fimc);
1688 if (ret) {
1689 dev_err(&pdev->dev, "failed to install irq (%d)\n", ret);
1690 goto err_clk;
1691 }
1692
1693 /* Initialize contiguous memory allocator */
1694 fimc->alloc_ctx = vb2_dma_contig_init_ctx(&fimc->pdev->dev);
1695 if (IS_ERR(fimc->alloc_ctx)) {
1696 ret = PTR_ERR(fimc->alloc_ctx);
1697 goto err_irq;
1698 }
1699
1700 ret = fimc_register_m2m_device(fimc);
1701 if (ret)
1702 goto err_irq;
1703
1704 /* At least one camera sensor is required to register capture node */
1705 if (cap_input_index >= 0) {
1706 ret = fimc_register_capture_device(fimc);
1707 if (ret)
1708 goto err_m2m;
1709 clk_disable(fimc->clock[CLK_CAM]);
1710 }
1711 /*
1712 * Exclude the additional output DMA address registers by masking
1713 * them out on HW revisions that provide extended capabilites.
1714 */
1715 if (fimc->variant->out_buf_count > 4)
1716 fimc_hw_set_dma_seq(fimc, 0xF);
1717
1718 dev_dbg(&pdev->dev, "%s(): fimc-%d registered successfully\n",
1719 __func__, fimc->id);
1720
1721 return 0;
1722
1723 err_m2m:
1724 fimc_unregister_m2m_device(fimc);
1725 err_irq:
1726 free_irq(fimc->irq, fimc);
1727 err_clk:
1728 fimc_clk_release(fimc);
1729 err_regs_unmap:
1730 iounmap(fimc->regs);
1731 err_req_region:
1732 release_resource(fimc->regs_res);
1733 kfree(fimc->regs_res);
1734 err_info:
1735 kfree(fimc);
1736
1737 return ret;
1738 }
1739
1740 static int __devexit fimc_remove(struct platform_device *pdev)
1741 {
1742 struct fimc_dev *fimc =
1743 (struct fimc_dev *)platform_get_drvdata(pdev);
1744
1745 free_irq(fimc->irq, fimc);
1746 fimc_hw_reset(fimc);
1747
1748 fimc_unregister_m2m_device(fimc);
1749 fimc_unregister_capture_device(fimc);
1750
1751 fimc_clk_release(fimc);
1752
1753 vb2_dma_contig_cleanup_ctx(fimc->alloc_ctx);
1754
1755 iounmap(fimc->regs);
1756 release_resource(fimc->regs_res);
1757 kfree(fimc->regs_res);
1758 kfree(fimc);
1759
1760 dev_info(&pdev->dev, "%s driver unloaded\n", pdev->name);
1761 return 0;
1762 }
1763
1764 /* Image pixel limits, similar across several FIMC HW revisions. */
1765 static struct fimc_pix_limit s5p_pix_limit[4] = {
1766 [0] = {
1767 .scaler_en_w = 3264,
1768 .scaler_dis_w = 8192,
1769 .in_rot_en_h = 1920,
1770 .in_rot_dis_w = 8192,
1771 .out_rot_en_w = 1920,
1772 .out_rot_dis_w = 4224,
1773 },
1774 [1] = {
1775 .scaler_en_w = 4224,
1776 .scaler_dis_w = 8192,
1777 .in_rot_en_h = 1920,
1778 .in_rot_dis_w = 8192,
1779 .out_rot_en_w = 1920,
1780 .out_rot_dis_w = 4224,
1781 },
1782 [2] = {
1783 .scaler_en_w = 1920,
1784 .scaler_dis_w = 8192,
1785 .in_rot_en_h = 1280,
1786 .in_rot_dis_w = 8192,
1787 .out_rot_en_w = 1280,
1788 .out_rot_dis_w = 1920,
1789 },
1790 [3] = {
1791 .scaler_en_w = 1920,
1792 .scaler_dis_w = 8192,
1793 .in_rot_en_h = 1366,
1794 .in_rot_dis_w = 8192,
1795 .out_rot_en_w = 1366,
1796 .out_rot_dis_w = 1920,
1797 },
1798 };
1799
1800 static struct samsung_fimc_variant fimc0_variant_s5p = {
1801 .has_inp_rot = 1,
1802 .has_out_rot = 1,
1803 .min_inp_pixsize = 16,
1804 .min_out_pixsize = 16,
1805 .hor_offs_align = 8,
1806 .out_buf_count = 4,
1807 .pix_limit = &s5p_pix_limit[0],
1808 };
1809
1810 static struct samsung_fimc_variant fimc2_variant_s5p = {
1811 .min_inp_pixsize = 16,
1812 .min_out_pixsize = 16,
1813 .hor_offs_align = 8,
1814 .out_buf_count = 4,
1815 .pix_limit = &s5p_pix_limit[1],
1816 };
1817
1818 static struct samsung_fimc_variant fimc0_variant_s5pv210 = {
1819 .pix_hoff = 1,
1820 .has_inp_rot = 1,
1821 .has_out_rot = 1,
1822 .min_inp_pixsize = 16,
1823 .min_out_pixsize = 16,
1824 .hor_offs_align = 8,
1825 .out_buf_count = 4,
1826 .pix_limit = &s5p_pix_limit[1],
1827 };
1828
1829 static struct samsung_fimc_variant fimc1_variant_s5pv210 = {
1830 .pix_hoff = 1,
1831 .has_inp_rot = 1,
1832 .has_out_rot = 1,
1833 .has_mainscaler_ext = 1,
1834 .min_inp_pixsize = 16,
1835 .min_out_pixsize = 16,
1836 .hor_offs_align = 1,
1837 .out_buf_count = 4,
1838 .pix_limit = &s5p_pix_limit[2],
1839 };
1840
1841 static struct samsung_fimc_variant fimc2_variant_s5pv210 = {
1842 .pix_hoff = 1,
1843 .min_inp_pixsize = 16,
1844 .min_out_pixsize = 16,
1845 .hor_offs_align = 8,
1846 .out_buf_count = 4,
1847 .pix_limit = &s5p_pix_limit[2],
1848 };
1849
1850 static struct samsung_fimc_variant fimc0_variant_exynos4 = {
1851 .pix_hoff = 1,
1852 .has_inp_rot = 1,
1853 .has_out_rot = 1,
1854 .has_cistatus2 = 1,
1855 .has_mainscaler_ext = 1,
1856 .min_inp_pixsize = 16,
1857 .min_out_pixsize = 16,
1858 .hor_offs_align = 1,
1859 .out_buf_count = 32,
1860 .pix_limit = &s5p_pix_limit[1],
1861 };
1862
1863 static struct samsung_fimc_variant fimc2_variant_exynos4 = {
1864 .pix_hoff = 1,
1865 .has_cistatus2 = 1,
1866 .has_mainscaler_ext = 1,
1867 .min_inp_pixsize = 16,
1868 .min_out_pixsize = 16,
1869 .hor_offs_align = 1,
1870 .out_buf_count = 32,
1871 .pix_limit = &s5p_pix_limit[3],
1872 };
1873
1874 /* S5PC100 */
1875 static struct samsung_fimc_driverdata fimc_drvdata_s5p = {
1876 .variant = {
1877 [0] = &fimc0_variant_s5p,
1878 [1] = &fimc0_variant_s5p,
1879 [2] = &fimc2_variant_s5p,
1880 },
1881 .num_entities = 3,
1882 .lclk_frequency = 133000000UL,
1883 };
1884
1885 /* S5PV210, S5PC110 */
1886 static struct samsung_fimc_driverdata fimc_drvdata_s5pv210 = {
1887 .variant = {
1888 [0] = &fimc0_variant_s5pv210,
1889 [1] = &fimc1_variant_s5pv210,
1890 [2] = &fimc2_variant_s5pv210,
1891 },
1892 .num_entities = 3,
1893 .lclk_frequency = 166000000UL,
1894 };
1895
1896 /* S5PV310, S5PC210 */
1897 static struct samsung_fimc_driverdata fimc_drvdata_exynos4 = {
1898 .variant = {
1899 [0] = &fimc0_variant_exynos4,
1900 [1] = &fimc0_variant_exynos4,
1901 [2] = &fimc0_variant_exynos4,
1902 [3] = &fimc2_variant_exynos4,
1903 },
1904 .num_entities = 4,
1905 .lclk_frequency = 166000000UL,
1906 };
1907
1908 static struct platform_device_id fimc_driver_ids[] = {
1909 {
1910 .name = "s5p-fimc",
1911 .driver_data = (unsigned long)&fimc_drvdata_s5p,
1912 }, {
1913 .name = "s5pv210-fimc",
1914 .driver_data = (unsigned long)&fimc_drvdata_s5pv210,
1915 }, {
1916 .name = "exynos4-fimc",
1917 .driver_data = (unsigned long)&fimc_drvdata_exynos4,
1918 },
1919 {},
1920 };
1921 MODULE_DEVICE_TABLE(platform, fimc_driver_ids);
1922
1923 static struct platform_driver fimc_driver = {
1924 .probe = fimc_probe,
1925 .remove = __devexit_p(fimc_remove),
1926 .id_table = fimc_driver_ids,
1927 .driver = {
1928 .name = MODULE_NAME,
1929 .owner = THIS_MODULE,
1930 }
1931 };
1932
1933 static int __init fimc_init(void)
1934 {
1935 int ret = platform_driver_register(&fimc_driver);
1936 if (ret)
1937 err("platform_driver_register failed: %d\n", ret);
1938 return ret;
1939 }
1940
1941 static void __exit fimc_exit(void)
1942 {
1943 platform_driver_unregister(&fimc_driver);
1944 }
1945
1946 module_init(fimc_init);
1947 module_exit(fimc_exit);
1948
1949 MODULE_AUTHOR("Sylwester Nawrocki <s.nawrocki@samsung.com>");
1950 MODULE_DESCRIPTION("S5P FIMC camera host interface/video postprocessor driver");
1951 MODULE_LICENSE("GPL");
kernel source for telekom puls (alcatel/mediatek)