aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/media/platform/exynos4-is/fimc-reg.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/media/platform/exynos4-is/fimc-reg.c')
-rw-r--r--drivers/media/platform/exynos4-is/fimc-reg.c837
1 files changed, 837 insertions, 0 deletions
diff --git a/drivers/media/platform/exynos4-is/fimc-reg.c b/drivers/media/platform/exynos4-is/fimc-reg.c
new file mode 100644
index 000000000000..c276eb8e9711
--- /dev/null
+++ b/drivers/media/platform/exynos4-is/fimc-reg.c
@@ -0,0 +1,837 @@
1/*
2 * Register interface file for Samsung Camera Interface (FIMC) driver
3 *
4 * Copyright (C) 2010 - 2013 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 version 2 as
9 * published by the Free Software Foundation.
10*/
11
12#include <linux/delay.h>
13#include <linux/io.h>
14#include <linux/regmap.h>
15
16#include <media/s5p_fimc.h>
17#include "media-dev.h"
18
19#include "fimc-reg.h"
20#include "fimc-core.h"
21
22void fimc_hw_reset(struct fimc_dev *dev)
23{
24 u32 cfg;
25
26 cfg = readl(dev->regs + FIMC_REG_CISRCFMT);
27 cfg |= FIMC_REG_CISRCFMT_ITU601_8BIT;
28 writel(cfg, dev->regs + FIMC_REG_CISRCFMT);
29
30 /* Software reset. */
31 cfg = readl(dev->regs + FIMC_REG_CIGCTRL);
32 cfg |= (FIMC_REG_CIGCTRL_SWRST | FIMC_REG_CIGCTRL_IRQ_LEVEL);
33 writel(cfg, dev->regs + FIMC_REG_CIGCTRL);
34 udelay(10);
35
36 cfg = readl(dev->regs + FIMC_REG_CIGCTRL);
37 cfg &= ~FIMC_REG_CIGCTRL_SWRST;
38 writel(cfg, dev->regs + FIMC_REG_CIGCTRL);
39
40 if (dev->drv_data->out_buf_count > 4)
41 fimc_hw_set_dma_seq(dev, 0xF);
42}
43
44static u32 fimc_hw_get_in_flip(struct fimc_ctx *ctx)
45{
46 u32 flip = FIMC_REG_MSCTRL_FLIP_NORMAL;
47
48 if (ctx->hflip)
49 flip = FIMC_REG_MSCTRL_FLIP_Y_MIRROR;
50 if (ctx->vflip)
51 flip = FIMC_REG_MSCTRL_FLIP_X_MIRROR;
52
53 if (ctx->rotation <= 90)
54 return flip;
55
56 return (flip ^ FIMC_REG_MSCTRL_FLIP_180) & FIMC_REG_MSCTRL_FLIP_180;
57}
58
59static u32 fimc_hw_get_target_flip(struct fimc_ctx *ctx)
60{
61 u32 flip = FIMC_REG_CITRGFMT_FLIP_NORMAL;
62
63 if (ctx->hflip)
64 flip |= FIMC_REG_CITRGFMT_FLIP_Y_MIRROR;
65 if (ctx->vflip)
66 flip |= FIMC_REG_CITRGFMT_FLIP_X_MIRROR;
67
68 if (ctx->rotation <= 90)
69 return flip;
70
71 return (flip ^ FIMC_REG_CITRGFMT_FLIP_180) & FIMC_REG_CITRGFMT_FLIP_180;
72}
73
74void fimc_hw_set_rotation(struct fimc_ctx *ctx)
75{
76 u32 cfg, flip;
77 struct fimc_dev *dev = ctx->fimc_dev;
78
79 cfg = readl(dev->regs + FIMC_REG_CITRGFMT);
80 cfg &= ~(FIMC_REG_CITRGFMT_INROT90 | FIMC_REG_CITRGFMT_OUTROT90 |
81 FIMC_REG_CITRGFMT_FLIP_180);
82
83 /*
84 * The input and output rotator cannot work simultaneously.
85 * Use the output rotator in output DMA mode or the input rotator
86 * in direct fifo output mode.
87 */
88 if (ctx->rotation == 90 || ctx->rotation == 270) {
89 if (ctx->out_path == FIMC_IO_LCDFIFO)
90 cfg |= FIMC_REG_CITRGFMT_INROT90;
91 else
92 cfg |= FIMC_REG_CITRGFMT_OUTROT90;
93 }
94
95 if (ctx->out_path == FIMC_IO_DMA) {
96 cfg |= fimc_hw_get_target_flip(ctx);
97 writel(cfg, dev->regs + FIMC_REG_CITRGFMT);
98 } else {
99 /* LCD FIFO path */
100 flip = readl(dev->regs + FIMC_REG_MSCTRL);
101 flip &= ~FIMC_REG_MSCTRL_FLIP_MASK;
102 flip |= fimc_hw_get_in_flip(ctx);
103 writel(flip, dev->regs + FIMC_REG_MSCTRL);
104 }
105}
106
107void fimc_hw_set_target_format(struct fimc_ctx *ctx)
108{
109 u32 cfg;
110 struct fimc_dev *dev = ctx->fimc_dev;
111 struct fimc_frame *frame = &ctx->d_frame;
112
113 dbg("w= %d, h= %d color: %d", frame->width,
114 frame->height, frame->fmt->color);
115
116 cfg = readl(dev->regs + FIMC_REG_CITRGFMT);
117 cfg &= ~(FIMC_REG_CITRGFMT_FMT_MASK | FIMC_REG_CITRGFMT_HSIZE_MASK |
118 FIMC_REG_CITRGFMT_VSIZE_MASK);
119
120 switch (frame->fmt->color) {
121 case FIMC_FMT_RGB444...FIMC_FMT_RGB888:
122 cfg |= FIMC_REG_CITRGFMT_RGB;
123 break;
124 case FIMC_FMT_YCBCR420:
125 cfg |= FIMC_REG_CITRGFMT_YCBCR420;
126 break;
127 case FIMC_FMT_YCBYCR422...FIMC_FMT_CRYCBY422:
128 if (frame->fmt->colplanes == 1)
129 cfg |= FIMC_REG_CITRGFMT_YCBCR422_1P;
130 else
131 cfg |= FIMC_REG_CITRGFMT_YCBCR422;
132 break;
133 default:
134 break;
135 }
136
137 if (ctx->rotation == 90 || ctx->rotation == 270)
138 cfg |= (frame->height << 16) | frame->width;
139 else
140 cfg |= (frame->width << 16) | frame->height;
141
142 writel(cfg, dev->regs + FIMC_REG_CITRGFMT);
143
144 cfg = readl(dev->regs + FIMC_REG_CITAREA);
145 cfg &= ~FIMC_REG_CITAREA_MASK;
146 cfg |= (frame->width * frame->height);
147 writel(cfg, dev->regs + FIMC_REG_CITAREA);
148}
149
150static void fimc_hw_set_out_dma_size(struct fimc_ctx *ctx)
151{
152 struct fimc_dev *dev = ctx->fimc_dev;
153 struct fimc_frame *frame = &ctx->d_frame;
154 u32 cfg;
155
156 cfg = (frame->f_height << 16) | frame->f_width;
157 writel(cfg, dev->regs + FIMC_REG_ORGOSIZE);
158
159 /* Select color space conversion equation (HD/SD size).*/
160 cfg = readl(dev->regs + FIMC_REG_CIGCTRL);
161 if (frame->f_width >= 1280) /* HD */
162 cfg |= FIMC_REG_CIGCTRL_CSC_ITU601_709;
163 else /* SD */
164 cfg &= ~FIMC_REG_CIGCTRL_CSC_ITU601_709;
165 writel(cfg, dev->regs + FIMC_REG_CIGCTRL);
166
167}
168
169void fimc_hw_set_out_dma(struct fimc_ctx *ctx)
170{
171 struct fimc_dev *dev = ctx->fimc_dev;
172 struct fimc_frame *frame = &ctx->d_frame;
173 struct fimc_dma_offset *offset = &frame->dma_offset;
174 struct fimc_fmt *fmt = frame->fmt;
175 u32 cfg;
176
177 /* Set the input dma offsets. */
178 cfg = (offset->y_v << 16) | offset->y_h;
179 writel(cfg, dev->regs + FIMC_REG_CIOYOFF);
180
181 cfg = (offset->cb_v << 16) | offset->cb_h;
182 writel(cfg, dev->regs + FIMC_REG_CIOCBOFF);
183
184 cfg = (offset->cr_v << 16) | offset->cr_h;
185 writel(cfg, dev->regs + FIMC_REG_CIOCROFF);
186
187 fimc_hw_set_out_dma_size(ctx);
188
189 /* Configure chroma components order. */
190 cfg = readl(dev->regs + FIMC_REG_CIOCTRL);
191
192 cfg &= ~(FIMC_REG_CIOCTRL_ORDER2P_MASK |
193 FIMC_REG_CIOCTRL_ORDER422_MASK |
194 FIMC_REG_CIOCTRL_YCBCR_PLANE_MASK |
195 FIMC_REG_CIOCTRL_RGB16FMT_MASK);
196
197 if (fmt->colplanes == 1)
198 cfg |= ctx->out_order_1p;
199 else if (fmt->colplanes == 2)
200 cfg |= ctx->out_order_2p | FIMC_REG_CIOCTRL_YCBCR_2PLANE;
201 else if (fmt->colplanes == 3)
202 cfg |= FIMC_REG_CIOCTRL_YCBCR_3PLANE;
203
204 if (fmt->color == FIMC_FMT_RGB565)
205 cfg |= FIMC_REG_CIOCTRL_RGB565;
206 else if (fmt->color == FIMC_FMT_RGB555)
207 cfg |= FIMC_REG_CIOCTRL_ARGB1555;
208 else if (fmt->color == FIMC_FMT_RGB444)
209 cfg |= FIMC_REG_CIOCTRL_ARGB4444;
210
211 writel(cfg, dev->regs + FIMC_REG_CIOCTRL);
212}
213
214static void fimc_hw_en_autoload(struct fimc_dev *dev, int enable)
215{
216 u32 cfg = readl(dev->regs + FIMC_REG_ORGISIZE);
217 if (enable)
218 cfg |= FIMC_REG_CIREAL_ISIZE_AUTOLOAD_EN;
219 else
220 cfg &= ~FIMC_REG_CIREAL_ISIZE_AUTOLOAD_EN;
221 writel(cfg, dev->regs + FIMC_REG_ORGISIZE);
222}
223
224void fimc_hw_en_lastirq(struct fimc_dev *dev, int enable)
225{
226 u32 cfg = readl(dev->regs + FIMC_REG_CIOCTRL);
227 if (enable)
228 cfg |= FIMC_REG_CIOCTRL_LASTIRQ_ENABLE;
229 else
230 cfg &= ~FIMC_REG_CIOCTRL_LASTIRQ_ENABLE;
231 writel(cfg, dev->regs + FIMC_REG_CIOCTRL);
232}
233
234void fimc_hw_set_prescaler(struct fimc_ctx *ctx)
235{
236 struct fimc_dev *dev = ctx->fimc_dev;
237 struct fimc_scaler *sc = &ctx->scaler;
238 u32 cfg, shfactor;
239
240 shfactor = 10 - (sc->hfactor + sc->vfactor);
241 cfg = shfactor << 28;
242
243 cfg |= (sc->pre_hratio << 16) | sc->pre_vratio;
244 writel(cfg, dev->regs + FIMC_REG_CISCPRERATIO);
245
246 cfg = (sc->pre_dst_width << 16) | sc->pre_dst_height;
247 writel(cfg, dev->regs + FIMC_REG_CISCPREDST);
248}
249
250static void fimc_hw_set_scaler(struct fimc_ctx *ctx)
251{
252 struct fimc_dev *dev = ctx->fimc_dev;
253 struct fimc_scaler *sc = &ctx->scaler;
254 struct fimc_frame *src_frame = &ctx->s_frame;
255 struct fimc_frame *dst_frame = &ctx->d_frame;
256
257 u32 cfg = readl(dev->regs + FIMC_REG_CISCCTRL);
258
259 cfg &= ~(FIMC_REG_CISCCTRL_CSCR2Y_WIDE | FIMC_REG_CISCCTRL_CSCY2R_WIDE |
260 FIMC_REG_CISCCTRL_SCALEUP_H | FIMC_REG_CISCCTRL_SCALEUP_V |
261 FIMC_REG_CISCCTRL_SCALERBYPASS | FIMC_REG_CISCCTRL_ONE2ONE |
262 FIMC_REG_CISCCTRL_INRGB_FMT_MASK | FIMC_REG_CISCCTRL_OUTRGB_FMT_MASK |
263 FIMC_REG_CISCCTRL_INTERLACE | FIMC_REG_CISCCTRL_RGB_EXT);
264
265 if (!(ctx->flags & FIMC_COLOR_RANGE_NARROW))
266 cfg |= (FIMC_REG_CISCCTRL_CSCR2Y_WIDE |
267 FIMC_REG_CISCCTRL_CSCY2R_WIDE);
268
269 if (!sc->enabled)
270 cfg |= FIMC_REG_CISCCTRL_SCALERBYPASS;
271
272 if (sc->scaleup_h)
273 cfg |= FIMC_REG_CISCCTRL_SCALEUP_H;
274
275 if (sc->scaleup_v)
276 cfg |= FIMC_REG_CISCCTRL_SCALEUP_V;
277
278 if (sc->copy_mode)
279 cfg |= FIMC_REG_CISCCTRL_ONE2ONE;
280
281 if (ctx->in_path == FIMC_IO_DMA) {
282 switch (src_frame->fmt->color) {
283 case FIMC_FMT_RGB565:
284 cfg |= FIMC_REG_CISCCTRL_INRGB_FMT_RGB565;
285 break;
286 case FIMC_FMT_RGB666:
287 cfg |= FIMC_REG_CISCCTRL_INRGB_FMT_RGB666;
288 break;
289 case FIMC_FMT_RGB888:
290 cfg |= FIMC_REG_CISCCTRL_INRGB_FMT_RGB888;
291 break;
292 }
293 }
294
295 if (ctx->out_path == FIMC_IO_DMA) {
296 u32 color = dst_frame->fmt->color;
297
298 if (color >= FIMC_FMT_RGB444 && color <= FIMC_FMT_RGB565)
299 cfg |= FIMC_REG_CISCCTRL_OUTRGB_FMT_RGB565;
300 else if (color == FIMC_FMT_RGB666)
301 cfg |= FIMC_REG_CISCCTRL_OUTRGB_FMT_RGB666;
302 else if (color == FIMC_FMT_RGB888)
303 cfg |= FIMC_REG_CISCCTRL_OUTRGB_FMT_RGB888;
304 } else {
305 cfg |= FIMC_REG_CISCCTRL_OUTRGB_FMT_RGB888;
306
307 if (ctx->flags & FIMC_SCAN_MODE_INTERLACED)
308 cfg |= FIMC_REG_CISCCTRL_INTERLACE;
309 }
310
311 writel(cfg, dev->regs + FIMC_REG_CISCCTRL);
312}
313
314void fimc_hw_set_mainscaler(struct fimc_ctx *ctx)
315{
316 struct fimc_dev *dev = ctx->fimc_dev;
317 const struct fimc_variant *variant = dev->variant;
318 struct fimc_scaler *sc = &ctx->scaler;
319 u32 cfg;
320
321 dbg("main_hratio= 0x%X main_vratio= 0x%X",
322 sc->main_hratio, sc->main_vratio);
323
324 fimc_hw_set_scaler(ctx);
325
326 cfg = readl(dev->regs + FIMC_REG_CISCCTRL);
327 cfg &= ~(FIMC_REG_CISCCTRL_MHRATIO_MASK |
328 FIMC_REG_CISCCTRL_MVRATIO_MASK);
329
330 if (variant->has_mainscaler_ext) {
331 cfg |= FIMC_REG_CISCCTRL_MHRATIO_EXT(sc->main_hratio);
332 cfg |= FIMC_REG_CISCCTRL_MVRATIO_EXT(sc->main_vratio);
333 writel(cfg, dev->regs + FIMC_REG_CISCCTRL);
334
335 cfg = readl(dev->regs + FIMC_REG_CIEXTEN);
336
337 cfg &= ~(FIMC_REG_CIEXTEN_MVRATIO_EXT_MASK |
338 FIMC_REG_CIEXTEN_MHRATIO_EXT_MASK);
339 cfg |= FIMC_REG_CIEXTEN_MHRATIO_EXT(sc->main_hratio);
340 cfg |= FIMC_REG_CIEXTEN_MVRATIO_EXT(sc->main_vratio);
341 writel(cfg, dev->regs + FIMC_REG_CIEXTEN);
342 } else {
343 cfg |= FIMC_REG_CISCCTRL_MHRATIO(sc->main_hratio);
344 cfg |= FIMC_REG_CISCCTRL_MVRATIO(sc->main_vratio);
345 writel(cfg, dev->regs + FIMC_REG_CISCCTRL);
346 }
347}
348
349void fimc_hw_enable_capture(struct fimc_ctx *ctx)
350{
351 struct fimc_dev *dev = ctx->fimc_dev;
352 u32 cfg;
353
354 cfg = readl(dev->regs + FIMC_REG_CIIMGCPT);
355 cfg |= FIMC_REG_CIIMGCPT_CPT_FREN_ENABLE;
356
357 if (ctx->scaler.enabled)
358 cfg |= FIMC_REG_CIIMGCPT_IMGCPTEN_SC;
359 else
360 cfg &= FIMC_REG_CIIMGCPT_IMGCPTEN_SC;
361
362 cfg |= FIMC_REG_CIIMGCPT_IMGCPTEN;
363 writel(cfg, dev->regs + FIMC_REG_CIIMGCPT);
364}
365
366void fimc_hw_disable_capture(struct fimc_dev *dev)
367{
368 u32 cfg = readl(dev->regs + FIMC_REG_CIIMGCPT);
369 cfg &= ~(FIMC_REG_CIIMGCPT_IMGCPTEN |
370 FIMC_REG_CIIMGCPT_IMGCPTEN_SC);
371 writel(cfg, dev->regs + FIMC_REG_CIIMGCPT);
372}
373
374void fimc_hw_set_effect(struct fimc_ctx *ctx)
375{
376 struct fimc_dev *dev = ctx->fimc_dev;
377 struct fimc_effect *effect = &ctx->effect;
378 u32 cfg = 0;
379
380 if (effect->type != FIMC_REG_CIIMGEFF_FIN_BYPASS) {
381 cfg |= FIMC_REG_CIIMGEFF_IE_SC_AFTER |
382 FIMC_REG_CIIMGEFF_IE_ENABLE;
383 cfg |= effect->type;
384 if (effect->type == FIMC_REG_CIIMGEFF_FIN_ARBITRARY)
385 cfg |= (effect->pat_cb << 13) | effect->pat_cr;
386 }
387
388 writel(cfg, dev->regs + FIMC_REG_CIIMGEFF);
389}
390
391void fimc_hw_set_rgb_alpha(struct fimc_ctx *ctx)
392{
393 struct fimc_dev *dev = ctx->fimc_dev;
394 struct fimc_frame *frame = &ctx->d_frame;
395 u32 cfg;
396
397 if (!(frame->fmt->flags & FMT_HAS_ALPHA))
398 return;
399
400 cfg = readl(dev->regs + FIMC_REG_CIOCTRL);
401 cfg &= ~FIMC_REG_CIOCTRL_ALPHA_OUT_MASK;
402 cfg |= (frame->alpha << 4);
403 writel(cfg, dev->regs + FIMC_REG_CIOCTRL);
404}
405
406static void fimc_hw_set_in_dma_size(struct fimc_ctx *ctx)
407{
408 struct fimc_dev *dev = ctx->fimc_dev;
409 struct fimc_frame *frame = &ctx->s_frame;
410 u32 cfg_o = 0;
411 u32 cfg_r = 0;
412
413 if (FIMC_IO_LCDFIFO == ctx->out_path)
414 cfg_r |= FIMC_REG_CIREAL_ISIZE_AUTOLOAD_EN;
415
416 cfg_o |= (frame->f_height << 16) | frame->f_width;
417 cfg_r |= (frame->height << 16) | frame->width;
418
419 writel(cfg_o, dev->regs + FIMC_REG_ORGISIZE);
420 writel(cfg_r, dev->regs + FIMC_REG_CIREAL_ISIZE);
421}
422
423void fimc_hw_set_in_dma(struct fimc_ctx *ctx)
424{
425 struct fimc_dev *dev = ctx->fimc_dev;
426 struct fimc_frame *frame = &ctx->s_frame;
427 struct fimc_dma_offset *offset = &frame->dma_offset;
428 u32 cfg;
429
430 /* Set the pixel offsets. */
431 cfg = (offset->y_v << 16) | offset->y_h;
432 writel(cfg, dev->regs + FIMC_REG_CIIYOFF);
433
434 cfg = (offset->cb_v << 16) | offset->cb_h;
435 writel(cfg, dev->regs + FIMC_REG_CIICBOFF);
436
437 cfg = (offset->cr_v << 16) | offset->cr_h;
438 writel(cfg, dev->regs + FIMC_REG_CIICROFF);
439
440 /* Input original and real size. */
441 fimc_hw_set_in_dma_size(ctx);
442
443 /* Use DMA autoload only in FIFO mode. */
444 fimc_hw_en_autoload(dev, ctx->out_path == FIMC_IO_LCDFIFO);
445
446 /* Set the input DMA to process single frame only. */
447 cfg = readl(dev->regs + FIMC_REG_MSCTRL);
448 cfg &= ~(FIMC_REG_MSCTRL_INFORMAT_MASK
449 | FIMC_REG_MSCTRL_IN_BURST_COUNT_MASK
450 | FIMC_REG_MSCTRL_INPUT_MASK
451 | FIMC_REG_MSCTRL_C_INT_IN_MASK
452 | FIMC_REG_MSCTRL_2P_IN_ORDER_MASK);
453
454 cfg |= (FIMC_REG_MSCTRL_IN_BURST_COUNT(4)
455 | FIMC_REG_MSCTRL_INPUT_MEMORY
456 | FIMC_REG_MSCTRL_FIFO_CTRL_FULL);
457
458 switch (frame->fmt->color) {
459 case FIMC_FMT_RGB565...FIMC_FMT_RGB888:
460 cfg |= FIMC_REG_MSCTRL_INFORMAT_RGB;
461 break;
462 case FIMC_FMT_YCBCR420:
463 cfg |= FIMC_REG_MSCTRL_INFORMAT_YCBCR420;
464
465 if (frame->fmt->colplanes == 2)
466 cfg |= ctx->in_order_2p | FIMC_REG_MSCTRL_C_INT_IN_2PLANE;
467 else
468 cfg |= FIMC_REG_MSCTRL_C_INT_IN_3PLANE;
469
470 break;
471 case FIMC_FMT_YCBYCR422...FIMC_FMT_CRYCBY422:
472 if (frame->fmt->colplanes == 1) {
473 cfg |= ctx->in_order_1p
474 | FIMC_REG_MSCTRL_INFORMAT_YCBCR422_1P;
475 } else {
476 cfg |= FIMC_REG_MSCTRL_INFORMAT_YCBCR422;
477
478 if (frame->fmt->colplanes == 2)
479 cfg |= ctx->in_order_2p
480 | FIMC_REG_MSCTRL_C_INT_IN_2PLANE;
481 else
482 cfg |= FIMC_REG_MSCTRL_C_INT_IN_3PLANE;
483 }
484 break;
485 default:
486 break;
487 }
488
489 writel(cfg, dev->regs + FIMC_REG_MSCTRL);
490
491 /* Input/output DMA linear/tiled mode. */
492 cfg = readl(dev->regs + FIMC_REG_CIDMAPARAM);
493 cfg &= ~FIMC_REG_CIDMAPARAM_TILE_MASK;
494
495 if (tiled_fmt(ctx->s_frame.fmt))
496 cfg |= FIMC_REG_CIDMAPARAM_R_64X32;
497
498 if (tiled_fmt(ctx->d_frame.fmt))
499 cfg |= FIMC_REG_CIDMAPARAM_W_64X32;
500
501 writel(cfg, dev->regs + FIMC_REG_CIDMAPARAM);
502}
503
504
505void fimc_hw_set_input_path(struct fimc_ctx *ctx)
506{
507 struct fimc_dev *dev = ctx->fimc_dev;
508
509 u32 cfg = readl(dev->regs + FIMC_REG_MSCTRL);
510 cfg &= ~FIMC_REG_MSCTRL_INPUT_MASK;
511
512 if (ctx->in_path == FIMC_IO_DMA)
513 cfg |= FIMC_REG_MSCTRL_INPUT_MEMORY;
514 else
515 cfg |= FIMC_REG_MSCTRL_INPUT_EXTCAM;
516
517 writel(cfg, dev->regs + FIMC_REG_MSCTRL);
518}
519
520void fimc_hw_set_output_path(struct fimc_ctx *ctx)
521{
522 struct fimc_dev *dev = ctx->fimc_dev;
523
524 u32 cfg = readl(dev->regs + FIMC_REG_CISCCTRL);
525 cfg &= ~FIMC_REG_CISCCTRL_LCDPATHEN_FIFO;
526 if (ctx->out_path == FIMC_IO_LCDFIFO)
527 cfg |= FIMC_REG_CISCCTRL_LCDPATHEN_FIFO;
528 writel(cfg, dev->regs + FIMC_REG_CISCCTRL);
529}
530
531void fimc_hw_set_input_addr(struct fimc_dev *dev, struct fimc_addr *paddr)
532{
533 u32 cfg = readl(dev->regs + FIMC_REG_CIREAL_ISIZE);
534 cfg |= FIMC_REG_CIREAL_ISIZE_ADDR_CH_DIS;
535 writel(cfg, dev->regs + FIMC_REG_CIREAL_ISIZE);
536
537 writel(paddr->y, dev->regs + FIMC_REG_CIIYSA(0));
538 writel(paddr->cb, dev->regs + FIMC_REG_CIICBSA(0));
539 writel(paddr->cr, dev->regs + FIMC_REG_CIICRSA(0));
540
541 cfg &= ~FIMC_REG_CIREAL_ISIZE_ADDR_CH_DIS;
542 writel(cfg, dev->regs + FIMC_REG_CIREAL_ISIZE);
543}
544
545void fimc_hw_set_output_addr(struct fimc_dev *dev,
546 struct fimc_addr *paddr, int index)
547{
548 int i = (index == -1) ? 0 : index;
549 do {
550 writel(paddr->y, dev->regs + FIMC_REG_CIOYSA(i));
551 writel(paddr->cb, dev->regs + FIMC_REG_CIOCBSA(i));
552 writel(paddr->cr, dev->regs + FIMC_REG_CIOCRSA(i));
553 dbg("dst_buf[%d]: 0x%X, cb: 0x%X, cr: 0x%X",
554 i, paddr->y, paddr->cb, paddr->cr);
555 } while (index == -1 && ++i < FIMC_MAX_OUT_BUFS);
556}
557
558int fimc_hw_set_camera_polarity(struct fimc_dev *fimc,
559 struct fimc_source_info *cam)
560{
561 u32 cfg = readl(fimc->regs + FIMC_REG_CIGCTRL);
562
563 cfg &= ~(FIMC_REG_CIGCTRL_INVPOLPCLK | FIMC_REG_CIGCTRL_INVPOLVSYNC |
564 FIMC_REG_CIGCTRL_INVPOLHREF | FIMC_REG_CIGCTRL_INVPOLHSYNC |
565 FIMC_REG_CIGCTRL_INVPOLFIELD);
566
567 if (cam->flags & V4L2_MBUS_PCLK_SAMPLE_FALLING)
568 cfg |= FIMC_REG_CIGCTRL_INVPOLPCLK;
569
570 if (cam->flags & V4L2_MBUS_VSYNC_ACTIVE_LOW)
571 cfg |= FIMC_REG_CIGCTRL_INVPOLVSYNC;
572
573 if (cam->flags & V4L2_MBUS_HSYNC_ACTIVE_LOW)
574 cfg |= FIMC_REG_CIGCTRL_INVPOLHREF;
575
576 if (cam->flags & V4L2_MBUS_HSYNC_ACTIVE_LOW)
577 cfg |= FIMC_REG_CIGCTRL_INVPOLHSYNC;
578
579 if (cam->flags & V4L2_MBUS_FIELD_EVEN_LOW)
580 cfg |= FIMC_REG_CIGCTRL_INVPOLFIELD;
581
582 writel(cfg, fimc->regs + FIMC_REG_CIGCTRL);
583
584 return 0;
585}
586
587struct mbus_pixfmt_desc {
588 u32 pixelcode;
589 u32 cisrcfmt;
590 u16 bus_width;
591};
592
593static const struct mbus_pixfmt_desc pix_desc[] = {
594 { V4L2_MBUS_FMT_YUYV8_2X8, FIMC_REG_CISRCFMT_ORDER422_YCBYCR, 8 },
595 { V4L2_MBUS_FMT_YVYU8_2X8, FIMC_REG_CISRCFMT_ORDER422_YCRYCB, 8 },
596 { V4L2_MBUS_FMT_VYUY8_2X8, FIMC_REG_CISRCFMT_ORDER422_CRYCBY, 8 },
597 { V4L2_MBUS_FMT_UYVY8_2X8, FIMC_REG_CISRCFMT_ORDER422_CBYCRY, 8 },
598};
599
600int fimc_hw_set_camera_source(struct fimc_dev *fimc,
601 struct fimc_source_info *source)
602{
603 struct fimc_vid_cap *vc = &fimc->vid_cap;
604 struct fimc_frame *f = &vc->ctx->s_frame;
605 u32 bus_width, cfg = 0;
606 int i;
607
608 switch (source->fimc_bus_type) {
609 case FIMC_BUS_TYPE_ITU_601:
610 case FIMC_BUS_TYPE_ITU_656:
611 for (i = 0; i < ARRAY_SIZE(pix_desc); i++) {
612 if (vc->ci_fmt.code == pix_desc[i].pixelcode) {
613 cfg = pix_desc[i].cisrcfmt;
614 bus_width = pix_desc[i].bus_width;
615 break;
616 }
617 }
618
619 if (i == ARRAY_SIZE(pix_desc)) {
620 v4l2_err(&vc->vfd,
621 "Camera color format not supported: %d\n",
622 vc->ci_fmt.code);
623 return -EINVAL;
624 }
625
626 if (source->fimc_bus_type == FIMC_BUS_TYPE_ITU_601) {
627 if (bus_width == 8)
628 cfg |= FIMC_REG_CISRCFMT_ITU601_8BIT;
629 else if (bus_width == 16)
630 cfg |= FIMC_REG_CISRCFMT_ITU601_16BIT;
631 } /* else defaults to ITU-R BT.656 8-bit */
632 break;
633 case FIMC_BUS_TYPE_MIPI_CSI2:
634 if (fimc_fmt_is_user_defined(f->fmt->color))
635 cfg |= FIMC_REG_CISRCFMT_ITU601_8BIT;
636 break;
637 default:
638 case FIMC_BUS_TYPE_ISP_WRITEBACK:
639 /* Anything to do here ? */
640 break;
641 }
642
643 cfg |= (f->o_width << 16) | f->o_height;
644 writel(cfg, fimc->regs + FIMC_REG_CISRCFMT);
645 return 0;
646}
647
648void fimc_hw_set_camera_offset(struct fimc_dev *fimc, struct fimc_frame *f)
649{
650 u32 hoff2, voff2;
651
652 u32 cfg = readl(fimc->regs + FIMC_REG_CIWDOFST);
653
654 cfg &= ~(FIMC_REG_CIWDOFST_HOROFF_MASK | FIMC_REG_CIWDOFST_VEROFF_MASK);
655 cfg |= FIMC_REG_CIWDOFST_OFF_EN |
656 (f->offs_h << 16) | f->offs_v;
657
658 writel(cfg, fimc->regs + FIMC_REG_CIWDOFST);
659
660 /* See CIWDOFSTn register description in the datasheet for details. */
661 hoff2 = f->o_width - f->width - f->offs_h;
662 voff2 = f->o_height - f->height - f->offs_v;
663 cfg = (hoff2 << 16) | voff2;
664 writel(cfg, fimc->regs + FIMC_REG_CIWDOFST2);
665}
666
667int fimc_hw_set_camera_type(struct fimc_dev *fimc,
668 struct fimc_source_info *source)
669{
670 struct fimc_vid_cap *vid_cap = &fimc->vid_cap;
671 u32 csis_data_alignment = 32;
672 u32 cfg, tmp;
673
674 cfg = readl(fimc->regs + FIMC_REG_CIGCTRL);
675
676 /* Select ITU B interface, disable Writeback path and test pattern. */
677 cfg &= ~(FIMC_REG_CIGCTRL_TESTPAT_MASK | FIMC_REG_CIGCTRL_SELCAM_ITU_A |
678 FIMC_REG_CIGCTRL_SELCAM_MIPI | FIMC_REG_CIGCTRL_CAMIF_SELWB |
679 FIMC_REG_CIGCTRL_SELCAM_MIPI_A | FIMC_REG_CIGCTRL_CAM_JPEG |
680 FIMC_REG_CIGCTRL_SELWB_A);
681
682 switch (source->fimc_bus_type) {
683 case FIMC_BUS_TYPE_MIPI_CSI2:
684 cfg |= FIMC_REG_CIGCTRL_SELCAM_MIPI;
685
686 if (source->mux_id == 0)
687 cfg |= FIMC_REG_CIGCTRL_SELCAM_MIPI_A;
688
689 /* TODO: add remaining supported formats. */
690 switch (vid_cap->ci_fmt.code) {
691 case V4L2_MBUS_FMT_VYUY8_2X8:
692 tmp = FIMC_REG_CSIIMGFMT_YCBCR422_8BIT;
693 break;
694 case V4L2_MBUS_FMT_JPEG_1X8:
695 case V4L2_MBUS_FMT_S5C_UYVY_JPEG_1X8:
696 tmp = FIMC_REG_CSIIMGFMT_USER(1);
697 cfg |= FIMC_REG_CIGCTRL_CAM_JPEG;
698 break;
699 default:
700 v4l2_err(&vid_cap->vfd,
701 "Not supported camera pixel format: %#x\n",
702 vid_cap->ci_fmt.code);
703 return -EINVAL;
704 }
705 tmp |= (csis_data_alignment == 32) << 8;
706
707 writel(tmp, fimc->regs + FIMC_REG_CSIIMGFMT);
708 break;
709 case FIMC_BUS_TYPE_ITU_601...FIMC_BUS_TYPE_ITU_656:
710 if (source->mux_id == 0) /* ITU-A, ITU-B: 0, 1 */
711 cfg |= FIMC_REG_CIGCTRL_SELCAM_ITU_A;
712 break;
713 case FIMC_BUS_TYPE_LCD_WRITEBACK_A:
714 cfg |= FIMC_REG_CIGCTRL_CAMIF_SELWB;
715 /* fall through */
716 case FIMC_BUS_TYPE_ISP_WRITEBACK:
717 if (fimc->variant->has_isp_wb)
718 cfg |= FIMC_REG_CIGCTRL_CAMIF_SELWB;
719 else
720 WARN_ONCE(1, "ISP Writeback input is not supported\n");
721 break;
722 default:
723 v4l2_err(&vid_cap->vfd, "Invalid FIMC bus type selected: %d\n",
724 source->fimc_bus_type);
725 return -EINVAL;
726 }
727 writel(cfg, fimc->regs + FIMC_REG_CIGCTRL);
728
729 return 0;
730}
731
732void fimc_hw_clear_irq(struct fimc_dev *dev)
733{
734 u32 cfg = readl(dev->regs + FIMC_REG_CIGCTRL);
735 cfg |= FIMC_REG_CIGCTRL_IRQ_CLR;
736 writel(cfg, dev->regs + FIMC_REG_CIGCTRL);
737}
738
739void fimc_hw_enable_scaler(struct fimc_dev *dev, bool on)
740{
741 u32 cfg = readl(dev->regs + FIMC_REG_CISCCTRL);
742 if (on)
743 cfg |= FIMC_REG_CISCCTRL_SCALERSTART;
744 else
745 cfg &= ~FIMC_REG_CISCCTRL_SCALERSTART;
746 writel(cfg, dev->regs + FIMC_REG_CISCCTRL);
747}
748
749void fimc_hw_activate_input_dma(struct fimc_dev *dev, bool on)
750{
751 u32 cfg = readl(dev->regs + FIMC_REG_MSCTRL);
752 if (on)
753 cfg |= FIMC_REG_MSCTRL_ENVID;
754 else
755 cfg &= ~FIMC_REG_MSCTRL_ENVID;
756 writel(cfg, dev->regs + FIMC_REG_MSCTRL);
757}
758
759/* Return an index to the buffer actually being written. */
760s32 fimc_hw_get_frame_index(struct fimc_dev *dev)
761{
762 s32 reg;
763
764 if (dev->drv_data->cistatus2) {
765 reg = readl(dev->regs + FIMC_REG_CISTATUS2) & 0x3f;
766 return reg - 1;
767 }
768
769 reg = readl(dev->regs + FIMC_REG_CISTATUS);
770
771 return (reg & FIMC_REG_CISTATUS_FRAMECNT_MASK) >>
772 FIMC_REG_CISTATUS_FRAMECNT_SHIFT;
773}
774
775/* Return an index to the buffer being written previously. */
776s32 fimc_hw_get_prev_frame_index(struct fimc_dev *dev)
777{
778 s32 reg;
779
780 if (!dev->drv_data->cistatus2)
781 return -1;
782
783 reg = readl(dev->regs + FIMC_REG_CISTATUS2);
784 return ((reg >> 7) & 0x3f) - 1;
785}
786
787/* Locking: the caller holds fimc->slock */
788void fimc_activate_capture(struct fimc_ctx *ctx)
789{
790 fimc_hw_enable_scaler(ctx->fimc_dev, ctx->scaler.enabled);
791 fimc_hw_enable_capture(ctx);
792}
793
794void fimc_deactivate_capture(struct fimc_dev *fimc)
795{
796 fimc_hw_en_lastirq(fimc, true);
797 fimc_hw_disable_capture(fimc);
798 fimc_hw_enable_scaler(fimc, false);
799 fimc_hw_en_lastirq(fimc, false);
800}
801
802int fimc_hw_camblk_cfg_writeback(struct fimc_dev *fimc)
803{
804 struct regmap *map = fimc->sysreg;
805 unsigned int mask, val, camblk_cfg;
806 int ret;
807
808 ret = regmap_read(map, SYSREG_CAMBLK, &camblk_cfg);
809 if (ret < 0 || ((camblk_cfg & 0x00700000) >> 20 != 0x3))
810 return ret;
811
812 if (!WARN(fimc->id >= 3, "not supported id: %d\n", fimc->id))
813 val = 0x1 << (fimc->id + 20);
814 else
815 val = 0;
816
817 mask = SYSREG_CAMBLK_FIFORST_ISP | SYSREG_CAMBLK_ISPWB_FULL_EN;
818 ret = regmap_update_bits(map, SYSREG_CAMBLK, mask, val);
819 if (ret < 0)
820 return ret;
821
822 usleep_range(1000, 2000);
823
824 val |= SYSREG_CAMBLK_FIFORST_ISP;
825 ret = regmap_update_bits(map, SYSREG_CAMBLK, mask, val);
826 if (ret < 0)
827 return ret;
828
829 mask = SYSREG_ISPBLK_FIFORST_CAM_BLK;
830 ret = regmap_update_bits(map, SYSREG_ISPBLK, mask, ~mask);
831 if (ret < 0)
832 return ret;
833
834 usleep_range(1000, 2000);
835
836 return regmap_update_bits(map, SYSREG_ISPBLK, mask, mask);
837}
generated by cgit v1.2.2 (git 2.25.0) at 2025-01-07 07:42:14 -0500