1// SPDX-License-Identifier: GPL-2.0
2// Copyright (C) 2018 Intel Corporation
3
4#include <linux/device.h>
5
6#include "ipu3-css.h"
7#include "ipu3-css-fw.h"
8#include "ipu3-tables.h"
9#include "ipu3-css-params.h"
10
11#define DIV_ROUND_CLOSEST_DOWN(a, b)	(((a) + ((b) / 2) - 1) / (b))
12#define roundclosest_down(a, b)		(DIV_ROUND_CLOSEST_DOWN(a, b) * (b))
13
14#define IPU3_UAPI_ANR_MAX_RESET		((1 << 12) - 1)
15#define IPU3_UAPI_ANR_MIN_RESET		(((-1) << 12) + 1)
16
17struct imgu_css_scaler_info {
18	unsigned int phase_step;	/* Same for luma/chroma */
19	int exp_shift;
20
21	unsigned int phase_init;	/* luma/chroma dependent */
22	int pad_left;
23	int pad_right;
24	int crop_left;
25	int crop_top;
26};
27
28static unsigned int imgu_css_scaler_get_exp(unsigned int counter,
29					    unsigned int divider)
30{
31	int i = fls(divider) - fls(counter);
32
33	if (i <= 0)
34		return 0;
35
36	if (divider >> i < counter)
37		i = i - 1;
38
39	return i;
40}
41
42/* Set up the CSS scaler look up table */
43static void
44imgu_css_scaler_setup_lut(unsigned int taps, unsigned int input_width,
45			  unsigned int output_width, int phase_step_correction,
46			  const int *coeffs, unsigned int coeffs_size,
47			  s8 coeff_lut[], struct imgu_css_scaler_info *info)
48{
49	int tap, phase, phase_sum_left, phase_sum_right;
50	int exponent = imgu_css_scaler_get_exp(output_width, input_width);
51	int mantissa = (1 << exponent) * output_width;
52	unsigned int phase_step, phase_taps;
53
54	if (input_width == output_width) {
55		for (phase = 0; phase < IMGU_SCALER_PHASES; phase++) {
56			phase_taps = phase * IMGU_SCALER_FILTER_TAPS;
57			for (tap = 0; tap < taps; tap++)
58				coeff_lut[phase_taps + tap] = 0;
59		}
60
61		info->phase_step = IMGU_SCALER_PHASES *
62			(1 << IMGU_SCALER_PHASE_COUNTER_PREC_REF);
63		info->exp_shift = 0;
64		info->pad_left = 0;
65		info->pad_right = 0;
66		info->phase_init = 0;
67		info->crop_left = 0;
68		info->crop_top = 0;
69		return;
70	}
71
72	for (phase = 0; phase < IMGU_SCALER_PHASES; phase++) {
73		phase_taps = phase * IMGU_SCALER_FILTER_TAPS;
74		for (tap = 0; tap < taps; tap++) {
75			/* flip table to for convolution reverse indexing */
76			s64 coeff = coeffs[coeffs_size -
77				((tap * (coeffs_size / taps)) + phase) - 1];
78			coeff *= mantissa;
79			coeff = div64_long(coeff, input_width);
80
81			/* Add +"0.5" */
82			coeff += 1 << (IMGU_SCALER_COEFF_BITS - 1);
83			coeff >>= IMGU_SCALER_COEFF_BITS;
84			coeff_lut[phase_taps + tap] = coeff;
85		}
86	}
87
88	phase_step = IMGU_SCALER_PHASES *
89			(1 << IMGU_SCALER_PHASE_COUNTER_PREC_REF) *
90			output_width / input_width;
91	phase_step += phase_step_correction;
92	phase_sum_left = (taps / 2 * IMGU_SCALER_PHASES *
93			(1 << IMGU_SCALER_PHASE_COUNTER_PREC_REF)) -
94			(1 << (IMGU_SCALER_PHASE_COUNTER_PREC_REF - 1));
95	phase_sum_right = (taps / 2 * IMGU_SCALER_PHASES *
96			(1 << IMGU_SCALER_PHASE_COUNTER_PREC_REF)) +
97			(1 << (IMGU_SCALER_PHASE_COUNTER_PREC_REF - 1));
98
99	info->exp_shift = IMGU_SCALER_MAX_EXPONENT_SHIFT - exponent;
100	info->pad_left = (phase_sum_left % phase_step == 0) ?
101		phase_sum_left / phase_step - 1 : phase_sum_left / phase_step;
102	info->pad_right = (phase_sum_right % phase_step == 0) ?
103		phase_sum_right / phase_step - 1 : phase_sum_right / phase_step;
104	info->phase_init = phase_sum_left - phase_step * info->pad_left;
105	info->phase_step = phase_step;
106	info->crop_left = taps - 1;
107	info->crop_top = taps - 1;
108}
109
110/*
111 * Calculates the exact output image width/height, based on phase_step setting
112 * (must be perfectly aligned with hardware).
113 */
114static unsigned int
115imgu_css_scaler_calc_scaled_output(unsigned int input,
116				   struct imgu_css_scaler_info *info)
117{
118	unsigned int arg1 = input * info->phase_step +
119			(1 - IMGU_SCALER_TAPS_Y / 2) * IMGU_SCALER_FIR_PHASES -
120			IMGU_SCALER_FIR_PHASES / (2 * IMGU_SCALER_PHASES);
121	unsigned int arg2 = ((IMGU_SCALER_TAPS_Y / 2) * IMGU_SCALER_FIR_PHASES +
122			IMGU_SCALER_FIR_PHASES / (2 * IMGU_SCALER_PHASES)) *
123			IMGU_SCALER_FIR_PHASES + info->phase_step / 2;
124
125	return ((arg1 + (arg2 - IMGU_SCALER_FIR_PHASES * info->phase_step) /
126		IMGU_SCALER_FIR_PHASES) / (2 * IMGU_SCALER_FIR_PHASES)) * 2;
127}
128
129/*
130 * Calculate the output width and height, given the luma
131 * and chroma details of a scaler
132 */
133static void
134imgu_css_scaler_calc(u32 input_width, u32 input_height, u32 target_width,
135		     u32 target_height, struct imgu_abi_osys_config *cfg,
136		     struct imgu_css_scaler_info *info_luma,
137		     struct imgu_css_scaler_info *info_chroma,
138		     unsigned int *output_width, unsigned int *output_height,
139		     unsigned int *procmode)
140{
141	u32 out_width = target_width;
142	u32 out_height = target_height;
143	const unsigned int height_alignment = 2;
144	int phase_step_correction = -1;
145
146	/*
147	 * Calculate scaled output width. If the horizontal and vertical scaling
148	 * factor is different, then choose the biggest and crop off excess
149	 * lines or columns after formatting.
150	 */
151	if (target_height * input_width > target_width * input_height)
152		target_width = DIV_ROUND_UP(target_height * input_width,
153					    input_height);
154
155	if (input_width == target_width)
156		*procmode = IMGU_ABI_OSYS_PROCMODE_BYPASS;
157	else
158		*procmode = IMGU_ABI_OSYS_PROCMODE_DOWNSCALE;
159
160	memset(&cfg->scaler_coeffs_chroma, 0,
161	       sizeof(cfg->scaler_coeffs_chroma));
162	memset(&cfg->scaler_coeffs_luma, 0, sizeof(cfg->scaler_coeffs_luma));
163	do {
164		phase_step_correction++;
165
166		imgu_css_scaler_setup_lut(IMGU_SCALER_TAPS_Y,
167					  input_width, target_width,
168					  phase_step_correction,
169					  imgu_css_downscale_4taps,
170					  IMGU_SCALER_DOWNSCALE_4TAPS_LEN,
171					  cfg->scaler_coeffs_luma, info_luma);
172
173		imgu_css_scaler_setup_lut(IMGU_SCALER_TAPS_UV,
174					  input_width, target_width,
175					  phase_step_correction,
176					  imgu_css_downscale_2taps,
177					  IMGU_SCALER_DOWNSCALE_2TAPS_LEN,
178					  cfg->scaler_coeffs_chroma,
179					  info_chroma);
180
181		out_width = imgu_css_scaler_calc_scaled_output(input_width,
182							       info_luma);
183		out_height = imgu_css_scaler_calc_scaled_output(input_height,
184								info_luma);
185	} while ((out_width < target_width || out_height < target_height ||
186		 !IS_ALIGNED(out_height, height_alignment)) &&
187		 phase_step_correction <= 5);
188
189	*output_width = out_width;
190	*output_height = out_height;
191}
192
193/********************** Osys routines for scaler****************************/
194
195static void imgu_css_osys_set_format(enum imgu_abi_frame_format host_format,
196				     unsigned int *osys_format,
197				     unsigned int *osys_tiling)
198{
199	*osys_format = IMGU_ABI_OSYS_FORMAT_YUV420;
200	*osys_tiling = IMGU_ABI_OSYS_TILING_NONE;
201
202	switch (host_format) {
203	case IMGU_ABI_FRAME_FORMAT_YUV420:
204		*osys_format = IMGU_ABI_OSYS_FORMAT_YUV420;
205		break;
206	case IMGU_ABI_FRAME_FORMAT_YV12:
207		*osys_format = IMGU_ABI_OSYS_FORMAT_YV12;
208		break;
209	case IMGU_ABI_FRAME_FORMAT_NV12:
210		*osys_format = IMGU_ABI_OSYS_FORMAT_NV12;
211		break;
212	case IMGU_ABI_FRAME_FORMAT_NV16:
213		*osys_format = IMGU_ABI_OSYS_FORMAT_NV16;
214		break;
215	case IMGU_ABI_FRAME_FORMAT_NV21:
216		*osys_format = IMGU_ABI_OSYS_FORMAT_NV21;
217		break;
218	case IMGU_ABI_FRAME_FORMAT_NV12_TILEY:
219		*osys_format = IMGU_ABI_OSYS_FORMAT_NV12;
220		*osys_tiling = IMGU_ABI_OSYS_TILING_Y;
221		break;
222	default:
223		/* For now, assume use default values */
224		break;
225	}
226}
227
228/*
229 * Function calculates input frame stripe offset, based
230 * on output frame stripe offset and filter parameters.
231 */
232static int imgu_css_osys_calc_stripe_offset(int stripe_offset_out,
233					    int fir_phases, int phase_init,
234					    int phase_step, int pad_left)
235{
236	int stripe_offset_inp = stripe_offset_out * fir_phases -
237				pad_left * phase_step;
238
239	return DIV_ROUND_UP(stripe_offset_inp - phase_init, phase_step);
240}
241
242/*
243 * Calculate input frame phase, given the output frame
244 * stripe offset and filter parameters
245 */
246static int imgu_css_osys_calc_stripe_phase_init(int stripe_offset_out,
247						int fir_phases, int phase_init,
248						int phase_step, int pad_left)
249{
250	int stripe_offset_inp =
251		imgu_css_osys_calc_stripe_offset(stripe_offset_out,
252						 fir_phases, phase_init,
253						 phase_step, pad_left);
254
255	return phase_init + ((pad_left + stripe_offset_inp) * phase_step) -
256		stripe_offset_out * fir_phases;
257}
258
259/*
260 * This function calculates input frame stripe width,
261 * based on output frame stripe offset and filter parameters
262 */
263static int imgu_css_osys_calc_inp_stripe_width(int stripe_width_out,
264					       int fir_phases, int phase_init,
265					       int phase_step, int fir_taps,
266					       int pad_left, int pad_right)
267{
268	int stripe_width_inp = (stripe_width_out + fir_taps - 1) * fir_phases;
269
270	stripe_width_inp = DIV_ROUND_UP(stripe_width_inp - phase_init,
271					phase_step);
272
273	return stripe_width_inp - pad_left - pad_right;
274}
275
276/*
277 * This function calculates output frame stripe width, basedi
278 * on output frame stripe offset and filter parameters
279 */
280static int imgu_css_osys_out_stripe_width(int stripe_width_inp, int fir_phases,
281					  int phase_init, int phase_step,
282					  int fir_taps, int pad_left,
283					  int pad_right, int column_offset)
284{
285	int stripe_width_out = (pad_left + stripe_width_inp +
286				pad_right - column_offset) * phase_step;
287
288	stripe_width_out = (stripe_width_out + phase_init) / fir_phases;
289
290	return stripe_width_out - (fir_taps - 1);
291}
292
293struct imgu_css_reso {
294	unsigned int input_width;
295	unsigned int input_height;
296	enum imgu_abi_frame_format input_format;
297	unsigned int pin_width[IMGU_ABI_OSYS_PINS];
298	unsigned int pin_height[IMGU_ABI_OSYS_PINS];
299	unsigned int pin_stride[IMGU_ABI_OSYS_PINS];
300	enum imgu_abi_frame_format pin_format[IMGU_ABI_OSYS_PINS];
301	int chunk_width;
302	int chunk_height;
303	int block_height;
304	int block_width;
305};
306
307struct imgu_css_frame_params {
308	/* Output pins */
309	unsigned int enable;
310	unsigned int format;
311	unsigned int flip;
312	unsigned int mirror;
313	unsigned int tiling;
314	unsigned int reduce_range;
315	unsigned int width;
316	unsigned int height;
317	unsigned int stride;
318	unsigned int scaled;
319	unsigned int crop_left;
320	unsigned int crop_top;
321};
322
323struct imgu_css_stripe_params {
324	unsigned int processing_mode;
325	unsigned int phase_step;
326	unsigned int exp_shift;
327	unsigned int phase_init_left_y;
328	unsigned int phase_init_left_uv;
329	unsigned int phase_init_top_y;
330	unsigned int phase_init_top_uv;
331	unsigned int pad_left_y;
332	unsigned int pad_left_uv;
333	unsigned int pad_right_y;
334	unsigned int pad_right_uv;
335	unsigned int pad_top_y;
336	unsigned int pad_top_uv;
337	unsigned int pad_bottom_y;
338	unsigned int pad_bottom_uv;
339	unsigned int crop_left_y;
340	unsigned int crop_top_y;
341	unsigned int crop_left_uv;
342	unsigned int crop_top_uv;
343	unsigned int start_column_y;
344	unsigned int start_column_uv;
345	unsigned int chunk_width;
346	unsigned int chunk_height;
347	unsigned int block_width;
348	unsigned int block_height;
349	unsigned int input_width;
350	unsigned int input_height;
351	int output_width[IMGU_ABI_OSYS_PINS];
352	int output_height[IMGU_ABI_OSYS_PINS];
353	int output_offset[IMGU_ABI_OSYS_PINS];
354};
355
356/*
357 * frame_params - size IMGU_ABI_OSYS_PINS
358 * stripe_params - size IPU3_UAPI_MAX_STRIPES
359 */
360static int imgu_css_osys_calc_frame_and_stripe_params(
361		struct imgu_css *css, unsigned int stripes,
362		struct imgu_abi_osys_config *osys,
363		struct imgu_css_scaler_info *scaler_luma,
364		struct imgu_css_scaler_info *scaler_chroma,
365		struct imgu_css_frame_params frame_params[],
366		struct imgu_css_stripe_params stripe_params[],
367		unsigned int pipe)
368{
369	struct imgu_css_reso reso;
370	unsigned int output_width, pin, s;
371	u32 input_width, input_height, target_width, target_height;
372	unsigned int procmode = 0;
373	struct imgu_css_pipe *css_pipe = &css->pipes[pipe];
374
375	input_width = css_pipe->rect[IPU3_CSS_RECT_GDC].width;
376	input_height = css_pipe->rect[IPU3_CSS_RECT_GDC].height;
377	target_width = css_pipe->queue[IPU3_CSS_QUEUE_VF].fmt.mpix.width;
378	target_height = css_pipe->queue[IPU3_CSS_QUEUE_VF].fmt.mpix.height;
379
380	/* Frame parameters */
381
382	/* Input width for Output System is output width of DVS (with GDC) */
383	reso.input_width = css_pipe->rect[IPU3_CSS_RECT_GDC].width;
384
385	/* Input height for Output System is output height of DVS (with GDC) */
386	reso.input_height = css_pipe->rect[IPU3_CSS_RECT_GDC].height;
387
388	reso.input_format =
389		css_pipe->queue[IPU3_CSS_QUEUE_OUT].css_fmt->frame_format;
390
391	reso.pin_width[IMGU_ABI_OSYS_PIN_OUT] =
392		css_pipe->queue[IPU3_CSS_QUEUE_OUT].fmt.mpix.width;
393	reso.pin_height[IMGU_ABI_OSYS_PIN_OUT] =
394		css_pipe->queue[IPU3_CSS_QUEUE_OUT].fmt.mpix.height;
395	reso.pin_stride[IMGU_ABI_OSYS_PIN_OUT] =
396		css_pipe->queue[IPU3_CSS_QUEUE_OUT].width_pad;
397	reso.pin_format[IMGU_ABI_OSYS_PIN_OUT] =
398		css_pipe->queue[IPU3_CSS_QUEUE_OUT].css_fmt->frame_format;
399
400	reso.pin_width[IMGU_ABI_OSYS_PIN_VF] =
401		css_pipe->queue[IPU3_CSS_QUEUE_VF].fmt.mpix.width;
402	reso.pin_height[IMGU_ABI_OSYS_PIN_VF] =
403		css_pipe->queue[IPU3_CSS_QUEUE_VF].fmt.mpix.height;
404	reso.pin_stride[IMGU_ABI_OSYS_PIN_VF] =
405		css_pipe->queue[IPU3_CSS_QUEUE_VF].width_pad;
406	reso.pin_format[IMGU_ABI_OSYS_PIN_VF] =
407		css_pipe->queue[IPU3_CSS_QUEUE_VF].css_fmt->frame_format;
408
409	/* Configure the frame parameters for all output pins */
410
411	frame_params[IMGU_ABI_OSYS_PIN_OUT].width =
412		css_pipe->queue[IPU3_CSS_QUEUE_OUT].fmt.mpix.width;
413	frame_params[IMGU_ABI_OSYS_PIN_OUT].height =
414		css_pipe->queue[IPU3_CSS_QUEUE_OUT].fmt.mpix.height;
415	frame_params[IMGU_ABI_OSYS_PIN_VF].width =
416		css_pipe->queue[IPU3_CSS_QUEUE_VF].fmt.mpix.width;
417	frame_params[IMGU_ABI_OSYS_PIN_VF].height =
418		css_pipe->queue[IPU3_CSS_QUEUE_VF].fmt.mpix.height;
419	frame_params[IMGU_ABI_OSYS_PIN_VF].crop_top = 0;
420	frame_params[IMGU_ABI_OSYS_PIN_VF].crop_left = 0;
421
422	for (pin = 0; pin < IMGU_ABI_OSYS_PINS; pin++) {
423		int enable = 0;
424		int scaled = 0;
425		unsigned int format = 0;
426		unsigned int tiling = 0;
427
428		frame_params[pin].flip = 0;
429		frame_params[pin].mirror = 0;
430		frame_params[pin].reduce_range = 0;
431		if (reso.pin_width[pin] != 0 && reso.pin_height[pin] != 0) {
432			enable = 1;
433			if (pin == IMGU_ABI_OSYS_PIN_OUT) {
434				if (reso.input_width < reso.pin_width[pin] ||
435				    reso.input_height < reso.pin_height[pin])
436					return -EINVAL;
437				/*
438				 * When input and output resolution is
439				 * different instead of scaling, cropping
440				 * should happen. Determine the crop factor
441				 * to do the symmetric cropping
442				 */
443				frame_params[pin].crop_left = roundclosest_down(
444						(reso.input_width -
445						 reso.pin_width[pin]) / 2,
446						 IMGU_OSYS_DMA_CROP_W_LIMIT);
447				frame_params[pin].crop_top = roundclosest_down(
448						(reso.input_height -
449						 reso.pin_height[pin]) / 2,
450						 IMGU_OSYS_DMA_CROP_H_LIMIT);
451			} else {
452				if (reso.pin_width[pin] != reso.input_width ||
453				    reso.pin_height[pin] != reso.input_height) {
454					/*
455					 * If resolution is different at input
456					 * and output of OSYS, scaling is
457					 * considered except when pin is MAIN.
458					 * Later it will be decide whether
459					 * scaler factor is 1 or other
460					 * and cropping has to be done or not.
461					 */
462					scaled = 1;
463				}
464			}
465			imgu_css_osys_set_format(reso.pin_format[pin], &format,
466						 &tiling);
467		} else {
468			enable = 0;
469		}
470		frame_params[pin].enable = enable;
471		frame_params[pin].format = format;
472		frame_params[pin].tiling = tiling;
473		frame_params[pin].stride = reso.pin_stride[pin];
474		frame_params[pin].scaled = scaled;
475	}
476
477	imgu_css_scaler_calc(input_width, input_height, target_width,
478			     target_height, osys, scaler_luma, scaler_chroma,
479			     &reso.pin_width[IMGU_ABI_OSYS_PIN_VF],
480			     &reso.pin_height[IMGU_ABI_OSYS_PIN_VF], &procmode);
481	dev_dbg(css->dev, "osys scaler procmode is %u", procmode);
482	output_width = reso.pin_width[IMGU_ABI_OSYS_PIN_VF];
483
484	if (output_width < reso.input_width / 2) {
485		/* Scaling factor <= 0.5 */
486		reso.chunk_width = IMGU_OSYS_BLOCK_WIDTH;
487		reso.block_width = IMGU_OSYS_BLOCK_WIDTH;
488	} else { /* 0.5 <= Scaling factor <= 1.0 */
489		reso.chunk_width = IMGU_OSYS_BLOCK_WIDTH / 2;
490		reso.block_width = IMGU_OSYS_BLOCK_WIDTH;
491	}
492
493	if (output_width <= reso.input_width * 7 / 8) {
494		/* Scaling factor <= 0.875 */
495		reso.chunk_height = IMGU_OSYS_BLOCK_HEIGHT;
496		reso.block_height = IMGU_OSYS_BLOCK_HEIGHT;
497	} else { /* 1.0 <= Scaling factor <= 1.75 */
498		reso.chunk_height = IMGU_OSYS_BLOCK_HEIGHT / 2;
499		reso.block_height = IMGU_OSYS_BLOCK_HEIGHT;
500	}
501
502	/*
503	 * Calculate scaler configuration parameters based on input and output
504	 * resolution.
505	 */
506
507	if (frame_params[IMGU_ABI_OSYS_PIN_VF].enable) {
508		/*
509		 * When aspect ratio is different between target resolution and
510		 * required resolution, determine the crop factor to do
511		 * symmetric cropping
512		 */
513		u32 w = reso.pin_width[IMGU_ABI_OSYS_PIN_VF] -
514			frame_params[IMGU_ABI_OSYS_PIN_VF].width;
515		u32 h = reso.pin_height[IMGU_ABI_OSYS_PIN_VF] -
516			frame_params[IMGU_ABI_OSYS_PIN_VF].height;
517
518		frame_params[IMGU_ABI_OSYS_PIN_VF].crop_left =
519			roundclosest_down(w / 2, IMGU_OSYS_DMA_CROP_W_LIMIT);
520		frame_params[IMGU_ABI_OSYS_PIN_VF].crop_top =
521			roundclosest_down(h / 2, IMGU_OSYS_DMA_CROP_H_LIMIT);
522
523		if (reso.input_height % 4 || reso.input_width % 8) {
524			dev_err(css->dev, "OSYS input width is not multiple of 8 or\n");
525			dev_err(css->dev, "height is not multiple of 4\n");
526			return -EINVAL;
527		}
528	}
529
530	/* Stripe parameters */
531
532	if (frame_params[IMGU_ABI_OSYS_PIN_VF].enable) {
533		output_width = reso.pin_width[IMGU_ABI_OSYS_PIN_VF];
534	} else {
535		/*
536		 * in case scaler output is not enabled
537		 * take output width as input width since
538		 * there is no scaling at main pin.
539		 * Due to the fact that main pin can be different
540		 * from input resolution to osys in the case of cropping,
541		 * main pin resolution is not taken.
542		 */
543		output_width = reso.input_width;
544	}
545
546	for (s = 0; s < stripes; s++) {
547		int stripe_offset_inp_y = 0;
548		int stripe_offset_inp_uv = 0;
549		int stripe_offset_out_y = 0;
550		int stripe_offset_out_uv = 0;
551		int stripe_phase_init_y = scaler_luma->phase_init;
552		int stripe_phase_init_uv = scaler_chroma->phase_init;
553		int stripe_offset_blk_y = 0;
554		int stripe_offset_blk_uv = 0;
555		int stripe_offset_col_y = 0;
556		int stripe_offset_col_uv = 0;
557		int stripe_pad_left_y = scaler_luma->pad_left;
558		int stripe_pad_left_uv = scaler_chroma->pad_left;
559		int stripe_pad_right_y = scaler_luma->pad_right;
560		int stripe_pad_right_uv = scaler_chroma->pad_right;
561		int stripe_crop_left_y = scaler_luma->crop_left;
562		int stripe_crop_left_uv = scaler_chroma->crop_left;
563		int stripe_input_width_y = reso.input_width;
564		int stripe_input_width_uv = 0;
565		int stripe_output_width_y = output_width;
566		int stripe_output_width_uv = 0;
567		int chunk_floor_y = 0;
568		int chunk_floor_uv = 0;
569		int chunk_ceil_uv = 0;
570
571		if (stripes > 1) {
572			if (s > 0) {
573				/* Calculate stripe offsets */
574				stripe_offset_out_y =
575					output_width * s / stripes;
576				stripe_offset_out_y =
577					rounddown(stripe_offset_out_y,
578						  IPU3_UAPI_ISP_VEC_ELEMS);
579				stripe_offset_out_uv = stripe_offset_out_y /
580						IMGU_LUMA_TO_CHROMA_RATIO;
581				stripe_offset_inp_y =
582					imgu_css_osys_calc_stripe_offset(
583						stripe_offset_out_y,
584						IMGU_OSYS_FIR_PHASES,
585						scaler_luma->phase_init,
586						scaler_luma->phase_step,
587						scaler_luma->pad_left);
588				stripe_offset_inp_uv =
589					imgu_css_osys_calc_stripe_offset(
590						stripe_offset_out_uv,
591						IMGU_OSYS_FIR_PHASES,
592						scaler_chroma->phase_init,
593						scaler_chroma->phase_step,
594						scaler_chroma->pad_left);
595
596				/* Calculate stripe phase init */
597				stripe_phase_init_y =
598					imgu_css_osys_calc_stripe_phase_init(
599						stripe_offset_out_y,
600						IMGU_OSYS_FIR_PHASES,
601						scaler_luma->phase_init,
602						scaler_luma->phase_step,
603						scaler_luma->pad_left);
604				stripe_phase_init_uv =
605					imgu_css_osys_calc_stripe_phase_init(
606						stripe_offset_out_uv,
607						IMGU_OSYS_FIR_PHASES,
608						scaler_chroma->phase_init,
609						scaler_chroma->phase_step,
610						scaler_chroma->pad_left);
611
612				/*
613				 * Chunk boundary corner case - luma and chroma
614				 * start from different input chunks.
615				 */
616				chunk_floor_y = rounddown(stripe_offset_inp_y,
617							  reso.chunk_width);
618				chunk_floor_uv =
619					rounddown(stripe_offset_inp_uv,
620						  reso.chunk_width /
621						  IMGU_LUMA_TO_CHROMA_RATIO);
622
623				if (chunk_floor_y != chunk_floor_uv *
624				    IMGU_LUMA_TO_CHROMA_RATIO) {
625					/*
626					 * Match starting luma/chroma chunks.
627					 * Decrease offset for UV and add output
628					 * cropping.
629					 */
630					stripe_offset_inp_uv -= 1;
631					stripe_crop_left_uv += 1;
632					stripe_phase_init_uv -=
633						scaler_luma->phase_step;
634					if (stripe_phase_init_uv < 0)
635						stripe_phase_init_uv =
636							stripe_phase_init_uv +
637							IMGU_OSYS_FIR_PHASES;
638				}
639				/*
640				 * FW workaround for a HW bug: if the first
641				 * chroma pixel is generated exactly at the end
642				 * of chunck scaler HW may not output the pixel
643				 * for downscale factors smaller than 1.5
644				 * (timing issue).
645				 */
646				chunk_ceil_uv =
647					roundup(stripe_offset_inp_uv,
648						reso.chunk_width /
649						IMGU_LUMA_TO_CHROMA_RATIO);
650
651				if (stripe_offset_inp_uv ==
652				    chunk_ceil_uv - IMGU_OSYS_TAPS_UV) {
653					/*
654					 * Decrease input offset and add
655					 * output cropping
656					 */
657					stripe_offset_inp_uv -= 1;
658					stripe_phase_init_uv -=
659						scaler_luma->phase_step;
660					if (stripe_phase_init_uv < 0) {
661						stripe_phase_init_uv +=
662							IMGU_OSYS_FIR_PHASES;
663						stripe_crop_left_uv += 1;
664					}
665				}
666
667				/*
668				 * Calculate block and column offsets for the
669				 * input stripe
670				 */
671				stripe_offset_blk_y =
672					rounddown(stripe_offset_inp_y,
673						  IMGU_INPUT_BLOCK_WIDTH);
674				stripe_offset_blk_uv =
675					rounddown(stripe_offset_inp_uv,
676						  IMGU_INPUT_BLOCK_WIDTH /
677						  IMGU_LUMA_TO_CHROMA_RATIO);
678				stripe_offset_col_y = stripe_offset_inp_y -
679							stripe_offset_blk_y;
680				stripe_offset_col_uv = stripe_offset_inp_uv -
681							stripe_offset_blk_uv;
682
683				/* Left padding is only for the first stripe */
684				stripe_pad_left_y = 0;
685				stripe_pad_left_uv = 0;
686			}
687
688			/* Right padding is only for the last stripe */
689			if (s < stripes - 1) {
690				int next_offset;
691
692				stripe_pad_right_y = 0;
693				stripe_pad_right_uv = 0;
694
695				next_offset = output_width * (s + 1) / stripes;
696				next_offset = rounddown(next_offset, 64);
697				stripe_output_width_y = next_offset -
698							stripe_offset_out_y;
699			} else {
700				stripe_output_width_y = output_width -
701							stripe_offset_out_y;
702			}
703
704			/* Calculate target output stripe width */
705			stripe_output_width_uv = stripe_output_width_y /
706						IMGU_LUMA_TO_CHROMA_RATIO;
707			/* Calculate input stripe width */
708			stripe_input_width_y = stripe_offset_col_y +
709				imgu_css_osys_calc_inp_stripe_width(
710						stripe_output_width_y,
711						IMGU_OSYS_FIR_PHASES,
712						stripe_phase_init_y,
713						scaler_luma->phase_step,
714						IMGU_OSYS_TAPS_Y,
715						stripe_pad_left_y,
716						stripe_pad_right_y);
717
718			stripe_input_width_uv = stripe_offset_col_uv +
719				imgu_css_osys_calc_inp_stripe_width(
720						stripe_output_width_uv,
721						IMGU_OSYS_FIR_PHASES,
722						stripe_phase_init_uv,
723						scaler_chroma->phase_step,
724						IMGU_OSYS_TAPS_UV,
725						stripe_pad_left_uv,
726						stripe_pad_right_uv);
727
728			stripe_input_width_uv = max(DIV_ROUND_UP(
729						    stripe_input_width_y,
730						    IMGU_LUMA_TO_CHROMA_RATIO),
731						    stripe_input_width_uv);
732
733			stripe_input_width_y = stripe_input_width_uv *
734						IMGU_LUMA_TO_CHROMA_RATIO;
735
736			if (s >= stripes - 1) {
737				stripe_input_width_y = reso.input_width -
738					stripe_offset_blk_y;
739				/*
740				 * The scaler requires that the last stripe
741				 * spans at least two input blocks.
742				 */
743			}
744
745			/*
746			 * Spec: input stripe width must be a multiple of 8.
747			 * Increase the input width and recalculate the output
748			 * width. This may produce an extra column of junk
749			 * blocks which will be overwritten by the
750			 * next stripe.
751			 */
752			stripe_input_width_y = ALIGN(stripe_input_width_y, 8);
753			stripe_output_width_y =
754				imgu_css_osys_out_stripe_width(
755						stripe_input_width_y,
756						IMGU_OSYS_FIR_PHASES,
757						stripe_phase_init_y,
758						scaler_luma->phase_step,
759						IMGU_OSYS_TAPS_Y,
760						stripe_pad_left_y,
761						stripe_pad_right_y,
762						stripe_offset_col_y);
763
764			stripe_output_width_y =
765					rounddown(stripe_output_width_y,
766						  IMGU_LUMA_TO_CHROMA_RATIO);
767		}
768		/*
769		 * Following section executes and process parameters
770		 * for both cases - Striping or No Striping.
771		 */
772		{
773			unsigned int i;
774			/*Input resolution */
775
776			stripe_params[s].input_width = stripe_input_width_y;
777			stripe_params[s].input_height = reso.input_height;
778
779			for (i = 0; i < IMGU_ABI_OSYS_PINS; i++) {
780				if (frame_params[i].scaled) {
781					/*
782					 * Output stripe resolution and offset
783					 * as produced by the scaler; actual
784					 * output resolution may be slightly
785					 * smaller.
786					 */
787					stripe_params[s].output_width[i] =
788						stripe_output_width_y;
789					stripe_params[s].output_height[i] =
790						reso.pin_height[i];
791					stripe_params[s].output_offset[i] =
792						stripe_offset_out_y;
793				} else {
794					/* Unscaled pin */
795					stripe_params[s].output_width[i] =
796						stripe_params[s].input_width;
797					stripe_params[s].output_height[i] =
798						stripe_params[s].input_height;
799					stripe_params[s].output_offset[i] =
800						stripe_offset_blk_y;
801				}
802			}
803
804			/* If no pin use scale, we use BYPASS mode */
805			stripe_params[s].processing_mode = procmode;
806			stripe_params[s].phase_step = scaler_luma->phase_step;
807			stripe_params[s].exp_shift = scaler_luma->exp_shift;
808			stripe_params[s].phase_init_left_y =
809				stripe_phase_init_y;
810			stripe_params[s].phase_init_left_uv =
811				stripe_phase_init_uv;
812			stripe_params[s].phase_init_top_y =
813				scaler_luma->phase_init;
814			stripe_params[s].phase_init_top_uv =
815				scaler_chroma->phase_init;
816			stripe_params[s].pad_left_y = stripe_pad_left_y;
817			stripe_params[s].pad_left_uv = stripe_pad_left_uv;
818			stripe_params[s].pad_right_y = stripe_pad_right_y;
819			stripe_params[s].pad_right_uv = stripe_pad_right_uv;
820			stripe_params[s].pad_top_y = scaler_luma->pad_left;
821			stripe_params[s].pad_top_uv = scaler_chroma->pad_left;
822			stripe_params[s].pad_bottom_y = scaler_luma->pad_right;
823			stripe_params[s].pad_bottom_uv =
824				scaler_chroma->pad_right;
825			stripe_params[s].crop_left_y = stripe_crop_left_y;
826			stripe_params[s].crop_top_y = scaler_luma->crop_top;
827			stripe_params[s].crop_left_uv = stripe_crop_left_uv;
828			stripe_params[s].crop_top_uv = scaler_chroma->crop_top;
829			stripe_params[s].start_column_y = stripe_offset_col_y;
830			stripe_params[s].start_column_uv = stripe_offset_col_uv;
831			stripe_params[s].chunk_width = reso.chunk_width;
832			stripe_params[s].chunk_height = reso.chunk_height;
833			stripe_params[s].block_width = reso.block_width;
834			stripe_params[s].block_height = reso.block_height;
835		}
836	}
837
838	return 0;
839}
840
841/*
842 * This function configures the Output Formatter System, given the number of
843 * stripes, scaler luma and chrome parameters
844 */
845static int imgu_css_osys_calc(struct imgu_css *css, unsigned int pipe,
846			      unsigned int stripes,
847			      struct imgu_abi_osys_config *osys,
848			      struct imgu_css_scaler_info *scaler_luma,
849			      struct imgu_css_scaler_info *scaler_chroma,
850			      struct imgu_abi_stripes block_stripes[])
851{
852	struct imgu_css_frame_params frame_params[IMGU_ABI_OSYS_PINS];
853	struct imgu_css_stripe_params stripe_params[IPU3_UAPI_MAX_STRIPES];
854	struct imgu_abi_osys_formatter_params *param;
855	unsigned int pin, s;
856	struct imgu_css_pipe *css_pipe = &css->pipes[pipe];
857
858	memset(osys, 0, sizeof(*osys));
859
860	/* Compute the frame and stripe params */
861	if (imgu_css_osys_calc_frame_and_stripe_params(css, stripes, osys,
862						       scaler_luma,
863						       scaler_chroma,
864						       frame_params,
865						       stripe_params, pipe))
866		return -EINVAL;
867
868	/* Output formatter system parameters */
869
870	for (s = 0; s < stripes; s++) {
871		struct imgu_abi_osys_scaler_params *scaler =
872					&osys->scaler[s].param;
873		int fifo_addr_fmt = IMGU_FIFO_ADDR_SCALER_TO_FMT;
874		int fifo_addr_ack = IMGU_FIFO_ADDR_SCALER_TO_SP;
875
876		/* OUTPUT 0 / PIN 0 is only Scaler output */
877		scaler->inp_buf_y_st_addr = IMGU_VMEM1_INP_BUF_ADDR;
878
879		/*
880		 * = (IMGU_OSYS_BLOCK_WIDTH / IMGU_VMEM1_ELEMS_PER_VEC)
881		 * = (2 * IPU3_UAPI_ISP_VEC_ELEMS) /
882		 *   (IMGU_HIVE_OF_SYS_OF_SYSTEM_NWAYS)
883		 * = 2 * 64 / 32 = 4
884		 */
885		scaler->inp_buf_y_line_stride = IMGU_VMEM1_Y_STRIDE;
886		/*
887		 * = (IMGU_VMEM1_V_OFFSET + VMEM1_uv_size)
888		 * = (IMGU_VMEM1_U_OFFSET + VMEM1_uv_size) +
889		 *	(VMEM1_y_size / 4)
890		 * = (VMEM1_y_size) + (VMEM1_y_size / 4) +
891		 * (IMGU_OSYS_BLOCK_HEIGHT * IMGU_VMEM1_Y_STRIDE)/4
892		 * = (IMGU_OSYS_BLOCK_HEIGHT * IMGU_VMEM1_Y_STRIDE)
893		 */
894		scaler->inp_buf_y_buffer_stride = IMGU_VMEM1_BUF_SIZE;
895		scaler->inp_buf_u_st_addr = IMGU_VMEM1_INP_BUF_ADDR +
896						IMGU_VMEM1_U_OFFSET;
897		scaler->inp_buf_v_st_addr = IMGU_VMEM1_INP_BUF_ADDR +
898						IMGU_VMEM1_V_OFFSET;
899		scaler->inp_buf_uv_line_stride = IMGU_VMEM1_UV_STRIDE;
900		scaler->inp_buf_uv_buffer_stride = IMGU_VMEM1_BUF_SIZE;
901		scaler->inp_buf_chunk_width = stripe_params[s].chunk_width;
902		scaler->inp_buf_nr_buffers = IMGU_OSYS_NUM_INPUT_BUFFERS;
903
904		/* Output buffers */
905		scaler->out_buf_y_st_addr = IMGU_VMEM1_INT_BUF_ADDR;
906		scaler->out_buf_y_line_stride = stripe_params[s].block_width /
907						IMGU_VMEM1_ELEMS_PER_VEC;
908		scaler->out_buf_y_buffer_stride = IMGU_VMEM1_BUF_SIZE;
909		scaler->out_buf_u_st_addr = IMGU_VMEM1_INT_BUF_ADDR +
910						IMGU_VMEM1_U_OFFSET;
911		scaler->out_buf_v_st_addr = IMGU_VMEM1_INT_BUF_ADDR +
912						IMGU_VMEM1_V_OFFSET;
913		scaler->out_buf_uv_line_stride = stripe_params[s].block_width /
914						IMGU_VMEM1_ELEMS_PER_VEC / 2;
915		scaler->out_buf_uv_buffer_stride = IMGU_VMEM1_BUF_SIZE;
916		scaler->out_buf_nr_buffers = IMGU_OSYS_NUM_INTERM_BUFFERS;
917
918		/* Intermediate buffers */
919		scaler->int_buf_y_st_addr = IMGU_VMEM2_BUF_Y_ADDR;
920		scaler->int_buf_y_line_stride = IMGU_VMEM2_BUF_Y_STRIDE;
921		scaler->int_buf_u_st_addr = IMGU_VMEM2_BUF_U_ADDR;
922		scaler->int_buf_v_st_addr = IMGU_VMEM2_BUF_V_ADDR;
923		scaler->int_buf_uv_line_stride = IMGU_VMEM2_BUF_UV_STRIDE;
924		scaler->int_buf_height = IMGU_VMEM2_LINES_PER_BLOCK;
925		scaler->int_buf_chunk_width = stripe_params[s].chunk_height;
926		scaler->int_buf_chunk_height = stripe_params[s].block_width;
927
928		/* Context buffers */
929		scaler->ctx_buf_hor_y_st_addr = IMGU_VMEM3_HOR_Y_ADDR;
930		scaler->ctx_buf_hor_u_st_addr = IMGU_VMEM3_HOR_U_ADDR;
931		scaler->ctx_buf_hor_v_st_addr = IMGU_VMEM3_HOR_V_ADDR;
932		scaler->ctx_buf_ver_y_st_addr = IMGU_VMEM3_VER_Y_ADDR;
933		scaler->ctx_buf_ver_u_st_addr = IMGU_VMEM3_VER_U_ADDR;
934		scaler->ctx_buf_ver_v_st_addr = IMGU_VMEM3_VER_V_ADDR;
935
936		/* Addresses for release-input and process-output tokens */
937		scaler->release_inp_buf_addr = fifo_addr_ack;
938		scaler->release_inp_buf_en = 1;
939		scaler->release_out_buf_en = 1;
940		scaler->process_out_buf_addr = fifo_addr_fmt;
941
942		/* Settings dimensions, padding, cropping */
943		scaler->input_image_y_width = stripe_params[s].input_width;
944		scaler->input_image_y_height = stripe_params[s].input_height;
945		scaler->input_image_y_start_column =
946					stripe_params[s].start_column_y;
947		scaler->input_image_uv_start_column =
948					stripe_params[s].start_column_uv;
949		scaler->input_image_y_left_pad = stripe_params[s].pad_left_y;
950		scaler->input_image_uv_left_pad = stripe_params[s].pad_left_uv;
951		scaler->input_image_y_right_pad = stripe_params[s].pad_right_y;
952		scaler->input_image_uv_right_pad =
953					stripe_params[s].pad_right_uv;
954		scaler->input_image_y_top_pad = stripe_params[s].pad_top_y;
955		scaler->input_image_uv_top_pad = stripe_params[s].pad_top_uv;
956		scaler->input_image_y_bottom_pad =
957					stripe_params[s].pad_bottom_y;
958		scaler->input_image_uv_bottom_pad =
959					stripe_params[s].pad_bottom_uv;
960		scaler->processing_mode = stripe_params[s].processing_mode;
961		scaler->scaling_ratio = stripe_params[s].phase_step;
962		scaler->y_left_phase_init = stripe_params[s].phase_init_left_y;
963		scaler->uv_left_phase_init =
964					stripe_params[s].phase_init_left_uv;
965		scaler->y_top_phase_init = stripe_params[s].phase_init_top_y;
966		scaler->uv_top_phase_init = stripe_params[s].phase_init_top_uv;
967		scaler->coeffs_exp_shift = stripe_params[s].exp_shift;
968		scaler->out_y_left_crop = stripe_params[s].crop_left_y;
969		scaler->out_uv_left_crop = stripe_params[s].crop_left_uv;
970		scaler->out_y_top_crop = stripe_params[s].crop_top_y;
971		scaler->out_uv_top_crop = stripe_params[s].crop_top_uv;
972
973		for (pin = 0; pin < IMGU_ABI_OSYS_PINS; pin++) {
974			int in_fifo_addr;
975			int out_fifo_addr;
976			int block_width_vecs;
977			int input_width_s;
978			int input_width_vecs;
979			int input_buf_y_st_addr;
980			int input_buf_u_st_addr;
981			int input_buf_v_st_addr;
982			int input_buf_y_line_stride;
983			int input_buf_uv_line_stride;
984			int output_buf_y_line_stride;
985			int output_buf_uv_line_stride;
986			int output_buf_nr_y_lines;
987			int block_height;
988			int block_width;
989			struct imgu_abi_osys_frame_params *fr_pr;
990
991			fr_pr = &osys->frame[pin].param;
992
993			/* Frame parameters */
994			fr_pr->enable = frame_params[pin].enable;
995			fr_pr->format = frame_params[pin].format;
996			fr_pr->mirror = frame_params[pin].mirror;
997			fr_pr->flip = frame_params[pin].flip;
998			fr_pr->tiling = frame_params[pin].tiling;
999			fr_pr->width = frame_params[pin].width;
1000			fr_pr->height = frame_params[pin].height;
1001			fr_pr->stride = frame_params[pin].stride;
1002			fr_pr->scaled = frame_params[pin].scaled;
1003
1004			/* Stripe parameters */
1005			osys->stripe[s].crop_top[pin] =
1006				frame_params[pin].crop_top;
1007			osys->stripe[s].input_width =
1008				stripe_params[s].input_width;
1009			osys->stripe[s].input_height =
1010				stripe_params[s].input_height;
1011			osys->stripe[s].block_height =
1012				stripe_params[s].block_height;
1013			osys->stripe[s].block_width =
1014				stripe_params[s].block_width;
1015			osys->stripe[s].output_width[pin] =
1016				stripe_params[s].output_width[pin];
1017			osys->stripe[s].output_height[pin] =
1018				stripe_params[s].output_height[pin];
1019
1020			if (s == 0) {
1021				/* Only first stripe should do left cropping */
1022				osys->stripe[s].crop_left[pin] =
1023					frame_params[pin].crop_left;
1024				osys->stripe[s].output_offset[pin] =
1025					stripe_params[s].output_offset[pin];
1026			} else {
1027				/*
1028				 * Stripe offset for other strips should be
1029				 * adjusted according to the cropping done
1030				 * at the first strip
1031				 */
1032				osys->stripe[s].crop_left[pin] = 0;
1033				osys->stripe[s].output_offset[pin] =
1034					(stripe_params[s].output_offset[pin] -
1035					 osys->stripe[0].crop_left[pin]);
1036			}
1037
1038			if (!frame_params[pin].enable)
1039				continue;
1040
1041			/* Formatter: configurations */
1042
1043			/*
1044			 * Get the dimensions of the input blocks of the
1045			 * formatter, which is the same as the output
1046			 * blocks of the scaler.
1047			 */
1048			if (frame_params[pin].scaled) {
1049				block_height = stripe_params[s].block_height;
1050				block_width = stripe_params[s].block_width;
1051			} else {
1052				block_height = IMGU_OSYS_BLOCK_HEIGHT;
1053				block_width = IMGU_OSYS_BLOCK_WIDTH;
1054			}
1055			block_width_vecs =
1056					block_width / IMGU_VMEM1_ELEMS_PER_VEC;
1057			/*
1058			 * The input/output line stride depends on the
1059			 * block size.
1060			 */
1061			input_buf_y_line_stride = block_width_vecs;
1062			input_buf_uv_line_stride = block_width_vecs / 2;
1063			output_buf_y_line_stride = block_width_vecs;
1064			output_buf_uv_line_stride = block_width_vecs / 2;
1065			output_buf_nr_y_lines = block_height;
1066			if (frame_params[pin].format ==
1067			    IMGU_ABI_OSYS_FORMAT_NV12 ||
1068			    frame_params[pin].format ==
1069			    IMGU_ABI_OSYS_FORMAT_NV21)
1070				output_buf_uv_line_stride =
1071					output_buf_y_line_stride;
1072
1073			/*
1074			 * Tiled outputs use a different output buffer
1075			 * configuration. The input (= scaler output) block
1076			 * width translates to a tile height, and the block
1077			 * height to the tile width. The default block size of
1078			 * 128x32 maps exactly onto a 4kB tile (512x8) for Y.
1079			 * For UV, the tile width is always half.
1080			 */
1081			if (frame_params[pin].tiling) {
1082				output_buf_nr_y_lines = 8;
1083				output_buf_y_line_stride = 512 /
1084					IMGU_VMEM1_ELEMS_PER_VEC;
1085				output_buf_uv_line_stride = 256 /
1086					IMGU_VMEM1_ELEMS_PER_VEC;
1087			}
1088
1089			/*
1090			 * Store the output buffer line stride. Will be
1091			 * used to compute buffer offsets in boundary
1092			 * conditions when output blocks are partially
1093			 * outside the image.
1094			 */
1095			osys->stripe[s].buf_stride[pin] =
1096				output_buf_y_line_stride *
1097				IMGU_HIVE_OF_SYS_OF_SYSTEM_NWAYS;
1098			if (frame_params[pin].scaled) {
1099				/*
1100				 * The input buffs are the intermediate
1101				 * buffers (scalers' output)
1102				 */
1103				input_buf_y_st_addr = IMGU_VMEM1_INT_BUF_ADDR;
1104				input_buf_u_st_addr = IMGU_VMEM1_INT_BUF_ADDR +
1105							IMGU_VMEM1_U_OFFSET;
1106				input_buf_v_st_addr = IMGU_VMEM1_INT_BUF_ADDR +
1107							IMGU_VMEM1_V_OFFSET;
1108			} else {
1109				/*
1110				 * The input bufferss are the buffers
1111				 * filled by the SP
1112				 */
1113				input_buf_y_st_addr = IMGU_VMEM1_INP_BUF_ADDR;
1114				input_buf_u_st_addr = IMGU_VMEM1_INP_BUF_ADDR +
1115							IMGU_VMEM1_U_OFFSET;
1116				input_buf_v_st_addr = IMGU_VMEM1_INP_BUF_ADDR +
1117							IMGU_VMEM1_V_OFFSET;
1118			}
1119
1120			/*
1121			 * The formatter input width must be rounded to
1122			 * the block width. Otherwise the formatter will
1123			 * not recognize the end of the line, resulting
1124			 * in incorrect tiling (system may hang!) and
1125			 * possibly other problems.
1126			 */
1127			input_width_s =
1128				roundup(stripe_params[s].output_width[pin],
1129					block_width);
1130			input_width_vecs = input_width_s /
1131					IMGU_VMEM1_ELEMS_PER_VEC;
1132			out_fifo_addr = IMGU_FIFO_ADDR_FMT_TO_SP;
1133			/*
1134			 * Process-output tokens must be sent to the SP.
1135			 * When scaling, the release-input tokens can be
1136			 * sent directly to the scaler, otherwise the
1137			 * formatter should send them to the SP.
1138			 */
1139			if (frame_params[pin].scaled)
1140				in_fifo_addr = IMGU_FIFO_ADDR_FMT_TO_SCALER;
1141			else
1142				in_fifo_addr = IMGU_FIFO_ADDR_FMT_TO_SP;
1143
1144			/* Formatter */
1145			param = &osys->formatter[s][pin].param;
1146
1147			param->format = frame_params[pin].format;
1148			param->flip = frame_params[pin].flip;
1149			param->mirror = frame_params[pin].mirror;
1150			param->tiling = frame_params[pin].tiling;
1151			param->reduce_range = frame_params[pin].reduce_range;
1152			param->alpha_blending = 0;
1153			param->release_inp_addr = in_fifo_addr;
1154			param->release_inp_en = 1;
1155			param->process_out_buf_addr = out_fifo_addr;
1156			param->image_width_vecs = input_width_vecs;
1157			param->image_height_lines =
1158				stripe_params[s].output_height[pin];
1159			param->inp_buff_y_st_addr = input_buf_y_st_addr;
1160			param->inp_buff_y_line_stride = input_buf_y_line_stride;
1161			param->inp_buff_y_buffer_stride = IMGU_VMEM1_BUF_SIZE;
1162			param->int_buff_u_st_addr = input_buf_u_st_addr;
1163			param->int_buff_v_st_addr = input_buf_v_st_addr;
1164			param->inp_buff_uv_line_stride =
1165				input_buf_uv_line_stride;
1166			param->inp_buff_uv_buffer_stride = IMGU_VMEM1_BUF_SIZE;
1167			param->out_buff_level = 0;
1168			param->out_buff_nr_y_lines = output_buf_nr_y_lines;
1169			param->out_buff_u_st_offset = IMGU_VMEM1_U_OFFSET;
1170			param->out_buff_v_st_offset = IMGU_VMEM1_V_OFFSET;
1171			param->out_buff_y_line_stride =
1172				output_buf_y_line_stride;
1173			param->out_buff_uv_line_stride =
1174				output_buf_uv_line_stride;
1175			param->hist_buff_st_addr = IMGU_VMEM1_HST_BUF_ADDR;
1176			param->hist_buff_line_stride =
1177				IMGU_VMEM1_HST_BUF_STRIDE;
1178			param->hist_buff_nr_lines = IMGU_VMEM1_HST_BUF_NLINES;
1179		}
1180	}
1181
1182	block_stripes[0].offset = 0;
1183	if (stripes <= 1) {
1184		block_stripes[0].width = stripe_params[0].input_width;
1185		block_stripes[0].height = stripe_params[0].input_height;
1186	} else {
1187		struct imgu_fw_info *bi =
1188			&css->fwp->binary_header[css_pipe->bindex];
1189		unsigned int sp_block_width =
1190				bi->info.isp.sp.block.block_width *
1191				IPU3_UAPI_ISP_VEC_ELEMS;
1192
1193		block_stripes[0].width = roundup(stripe_params[0].input_width,
1194						 sp_block_width);
1195		block_stripes[1].offset =
1196			rounddown(css_pipe->rect[IPU3_CSS_RECT_GDC].width -
1197				  stripe_params[1].input_width, sp_block_width);
1198		block_stripes[1].width =
1199			roundup(css_pipe->rect[IPU3_CSS_RECT_GDC].width -
1200				block_stripes[1].offset, sp_block_width);
1201		block_stripes[0].height = css_pipe->rect[IPU3_CSS_RECT_GDC].height;
1202		block_stripes[1].height = block_stripes[0].height;
1203	}
1204
1205	return 0;
1206}
1207
1208/*********************** Mostly 3A operations ******************************/
1209
1210/*
1211 * This function creates a "TO-DO list" (operations) for the sp code.
1212 *
1213 * There are 2 types of operations:
1214 * 1. Transfer: Issue DMA transfer request for copying grid cells from DDR to
1215 *    accelerator space (NOTE that this space is limited) associated data:
1216 *    DDR address + accelerator's config set index(acc's address).
1217 *
1218 * 2. Issue "Process Lines Command" to shd accelerator
1219 *    associated data: #lines + which config set to use (actually, accelerator
1220 *    will use x AND (x+1)%num_of_sets - NOTE that this implies the restriction
1221 *    of not touching config sets x & (x+1)%num_of_sets when process_lines(x)
1222 *    is active).
1223 *
1224 * Basically there are 2 types of operations "chunks":
1225 * 1. "initial chunk": Initially, we do as much transfers as we can (and need)
1226 *    [0 - max sets(3) ] followed by 1 or 2 "process lines" operations.
1227 *
1228 * 2. "regular chunk" - 1 transfer followed by 1 process line operation.
1229 *    (in some cases we might need additional transfer ate the last chunk).
1230 *
1231 * for some case:
1232 * --> init
1233 *	tr (0)
1234 *	tr (1)
1235 *	tr (2)
1236 *	pl (0)
1237 *	pl (1)
1238 * --> ack (0)
1239 *	tr (3)
1240 *	pl (2)
1241 * --> ack (1)
1242 *	pl (3)
1243 * --> ack (2)
1244 *	do nothing
1245 * --> ack (3)
1246 *	do nothing
1247 */
1248
1249static int
1250imgu_css_shd_ops_calc(struct imgu_abi_shd_intra_frame_operations_data *ops,
1251		      const struct ipu3_uapi_shd_grid_config *grid,
1252		      unsigned int image_height)
1253{
1254	unsigned int block_height = 1 << grid->block_height_log2;
1255	unsigned int grid_height_per_slice = grid->grid_height_per_slice;
1256	unsigned int set_height = grid_height_per_slice * block_height;
1257
1258	/* We currently support only abs(y_start) > grid_height_per_slice */
1259	unsigned int positive_y_start = (unsigned int)-grid->y_start;
1260	unsigned int first_process_lines =
1261				set_height - (positive_y_start % set_height);
1262	unsigned int last_set_height;
1263	unsigned int num_of_sets;
1264
1265	struct imgu_abi_acc_operation *p_op;
1266	struct imgu_abi_acc_process_lines_cmd_data *p_pl;
1267	struct imgu_abi_shd_transfer_luts_set_data *p_tr;
1268
1269	unsigned int op_idx, pl_idx, tr_idx;
1270	unsigned char tr_set_num, pl_cfg_set;
1271
1272	/*
1273	 * When the number of lines for the last process lines command
1274	 * is equal to a set height, we need another line of grid cell -
1275	 * additional transfer is required.
1276	 */
1277	unsigned char last_tr = 0;
1278
1279	/* Add "process lines" command to the list of operations */
1280	bool add_pl;
1281	/* Add DMA xfer (config set) command to the list of ops */
1282	bool add_tr;
1283
1284	/*
1285	 * Available partial grid (the part that fits into #IMGU_SHD_SETS sets)
1286	 * doesn't cover whole frame - need to process in chunks
1287	 */
1288	if (image_height > first_process_lines) {
1289		last_set_height =
1290			(image_height - first_process_lines) % set_height;
1291		num_of_sets = last_set_height > 0 ?
1292			(image_height - first_process_lines) / set_height + 2 :
1293			(image_height - first_process_lines) / set_height + 1;
1294		last_tr = (set_height - last_set_height <= block_height ||
1295			   last_set_height == 0) ? 1 : 0;
1296	} else { /* partial grid covers whole frame */
1297		last_set_height = 0;
1298		num_of_sets = 1;
1299		first_process_lines = image_height;
1300		last_tr = set_height - image_height <= block_height ? 1 : 0;
1301	}
1302
1303	/* Init operations lists and counters */
1304	p_op = ops->operation_list;
1305	op_idx = 0;
1306	p_pl = ops->process_lines_data;
1307	pl_idx = 0;
1308	p_tr = ops->transfer_data;
1309	tr_idx = 0;
1310
1311	memset(ops, 0, sizeof(*ops));
1312
1313	/* Cyclic counters that holds config set number [0,IMGU_SHD_SETS) */
1314	tr_set_num = 0;
1315	pl_cfg_set = 0;
1316
1317	/*
1318	 * Always start with a transfer - process lines command must be
1319	 * initiated only after appropriate config sets are in place
1320	 * (2 configuration sets per process line command, except for last one).
1321	 */
1322	add_pl = false;
1323	add_tr = true;
1324
1325	while (add_pl || add_tr) {
1326		/* Transfer ops */
1327		if (add_tr) {
1328			if (op_idx >= IMGU_ABI_SHD_MAX_OPERATIONS ||
1329			    tr_idx >= IMGU_ABI_SHD_MAX_TRANSFERS)
1330				return -EINVAL;
1331			p_op[op_idx].op_type =
1332				IMGU_ABI_ACC_OPTYPE_TRANSFER_DATA;
1333			p_op[op_idx].op_indicator = IMGU_ABI_ACC_OP_IDLE;
1334			op_idx++;
1335			p_tr[tr_idx].set_number = tr_set_num;
1336			tr_idx++;
1337			tr_set_num = (tr_set_num + 1) % IMGU_SHD_SETS;
1338		}
1339
1340		/* Process-lines ops */
1341		if (add_pl) {
1342			if (op_idx >= IMGU_ABI_SHD_MAX_OPERATIONS ||
1343			    pl_idx >= IMGU_ABI_SHD_MAX_PROCESS_LINES)
1344				return -EINVAL;
1345			p_op[op_idx].op_type =
1346				IMGU_ABI_ACC_OPTYPE_PROCESS_LINES;
1347
1348			/*
1349			 * In case we have 2 process lines commands -
1350			 * don't stop after the first one
1351			 */
1352			if (pl_idx == 0 && num_of_sets != 1)
1353				p_op[op_idx].op_indicator =
1354					IMGU_ABI_ACC_OP_IDLE;
1355			/*
1356			 * Initiate last process lines command -
1357			 * end of operation list.
1358			 */
1359			else if (pl_idx == num_of_sets - 1)
1360				p_op[op_idx].op_indicator =
1361					IMGU_ABI_ACC_OP_END_OF_OPS;
1362			/*
1363			 * Intermediate process line command - end of operation
1364			 * "chunk" (meaning few "transfers" followed by few
1365			 * "process lines" commands).
1366			 */
1367			else
1368				p_op[op_idx].op_indicator =
1369					IMGU_ABI_ACC_OP_END_OF_ACK;
1370
1371			op_idx++;
1372
1373			/* first process line operation */
1374			if (pl_idx == 0)
1375				p_pl[pl_idx].lines = first_process_lines;
1376			/* Last process line operation */
1377			else if (pl_idx == num_of_sets - 1 &&
1378				 last_set_height > 0)
1379				p_pl[pl_idx].lines = last_set_height;
1380			else	/* "regular" process lines operation */
1381				p_pl[pl_idx].lines = set_height;
1382
1383			p_pl[pl_idx].cfg_set = pl_cfg_set;
1384			pl_idx++;
1385			pl_cfg_set = (pl_cfg_set + 1) % IMGU_SHD_SETS;
1386		}
1387
1388		/*
1389		 * Initially, we always transfer
1390		 * min(IMGU_SHD_SETS, num_of_sets) - after that we fill in the
1391		 * corresponding process lines commands.
1392		 */
1393		if (tr_idx == IMGU_SHD_SETS ||
1394		    tr_idx == num_of_sets + last_tr) {
1395			add_tr = false;
1396			add_pl = true;
1397		}
1398
1399		/*
1400		 * We have finished the "initial" operations chunk -
1401		 * be ready to get more chunks.
1402		 */
1403		if (pl_idx == 2) {
1404			add_tr = true;
1405			add_pl = true;
1406		}
1407
1408		/* Stop conditions for each operation type */
1409		if (tr_idx == num_of_sets + last_tr)
1410			add_tr = false;
1411		if (pl_idx == num_of_sets)
1412			add_pl = false;
1413	}
1414
1415	return 0;
1416}
1417
1418/*
1419 * The follow handshake procotol is the same for AF, AWB and AWB FR.
1420 *
1421 * for n sets of meta-data, the flow is:
1422 * --> init
1423 *  process-lines  (0)
1424 *  process-lines  (1)	 eoc
1425 *  --> ack (0)
1426 *  read-meta-data (0)
1427 *  process-lines  (2)	 eoc
1428 *  --> ack (1)
1429 *  read-meta-data (1)
1430 *  process-lines  (3)	 eoc
1431 *  ...
1432 *
1433 *  --> ack (n-3)
1434 *  read-meta-data (n-3)
1435 *  process-lines  (n-1) eoc
1436 *  --> ack (n-2)
1437 *  read-meta-data (n-2) eoc
1438 *  --> ack (n-1)
1439 *  read-meta-data (n-1) eof
1440 *
1441 * for 2 sets we get:
1442 * --> init
1443 * pl (0)
1444 * pl (1) eoc
1445 * --> ack (0)
1446 * pl (2) - rest of image, if applicable)
1447 * rmd (0) eoc
1448 * --> ack (1)
1449 * rmd (1) eof
1450 * --> (ack (2))
1451 * do nothing
1452 *
1453 * for only one set:
1454 *
1455 * --> init
1456 * pl(0)   eoc
1457 * --> ack (0)
1458 * rmd (0) eof
1459 *
1460 * grid smaller than image case
1461 * for example 128x128 grid (block size 8x8, 16x16 num of blocks)
1462 * start at (0,0)
1463 * 1st set holds 160 cells - 10 blocks vertical, 16 horizontal
1464 * => 1st process lines = 80
1465 * we're left with 128-80=48 lines (6 blocks vertical)
1466 * => 2nd process lines = 48
1467 * last process lines to cover the image - image_height - 128
1468 *
1469 * --> init
1470 * pl (0) first
1471 * pl (1) last-in-grid
1472 * --> ack (0)
1473 * rmd (0)
1474 * pl (2) after-grid
1475 * --> ack (1)
1476 * rmd (1) eof
1477 * --> ack (2)
1478 * do nothing
1479 */
1480struct process_lines {
1481	unsigned int image_height;
1482	unsigned short grid_height;
1483	unsigned short block_height;
1484	unsigned short y_start;
1485	unsigned char grid_height_per_slice;
1486
1487	unsigned short max_op; /* max operation */
1488	unsigned short max_tr; /* max transaction */
1489	unsigned char acc_enable;
1490};
1491
1492/* Helper to config intra_frame_operations_data. */
1493static int
1494imgu_css_acc_process_lines(const struct process_lines *pl,
1495			   struct imgu_abi_acc_operation *p_op,
1496			   struct imgu_abi_acc_process_lines_cmd_data *p_pl,
1497			   struct imgu_abi_acc_transfer_op_data *p_tr)
1498{
1499	unsigned short op_idx = 0, pl_idx = 0, tr_idx = 0;
1500	unsigned char tr_set_num = 0, pl_cfg_set = 0;
1501	const unsigned short grid_last_line =
1502			pl->y_start + pl->grid_height * pl->block_height;
1503	const unsigned short process_lines =
1504			pl->grid_height_per_slice * pl->block_height;
1505
1506	unsigned int process_lines_after_grid;
1507	unsigned short first_process_lines;
1508	unsigned short last_process_lines_in_grid;
1509
1510	unsigned short num_of_process_lines;
1511	unsigned short num_of_sets;
1512
1513	if (pl->grid_height_per_slice == 0)
1514		return -EINVAL;
1515
1516	if (pl->acc_enable && grid_last_line > pl->image_height)
1517		return -EINVAL;
1518
1519	num_of_sets = pl->grid_height / pl->grid_height_per_slice;
1520	if (num_of_sets * pl->grid_height_per_slice < pl->grid_height)
1521		num_of_sets++;
1522
1523	/* Account for two line delay inside the FF */
1524	if (pl->max_op == IMGU_ABI_AF_MAX_OPERATIONS) {
1525		first_process_lines = process_lines + pl->y_start + 2;
1526		last_process_lines_in_grid =
1527			(grid_last_line - first_process_lines) -
1528			((num_of_sets - 2) * process_lines) + 4;
1529		process_lines_after_grid =
1530			pl->image_height - grid_last_line - 4;
1531	} else {
1532		first_process_lines = process_lines + pl->y_start;
1533		last_process_lines_in_grid =
1534			(grid_last_line - first_process_lines) -
1535			((num_of_sets - 2) * process_lines);
1536		process_lines_after_grid = pl->image_height - grid_last_line;
1537	}
1538
1539	num_of_process_lines = num_of_sets;
1540	if (process_lines_after_grid > 0)
1541		num_of_process_lines++;
1542
1543	while (tr_idx < num_of_sets || pl_idx < num_of_process_lines) {
1544		/* Read meta-data */
1545		if (pl_idx >= 2 || (pl_idx == 1 && num_of_sets == 1)) {
1546			if (op_idx >= pl->max_op || tr_idx >= pl->max_tr)
1547				return -EINVAL;
1548
1549			p_op[op_idx].op_type =
1550				IMGU_ABI_ACC_OPTYPE_TRANSFER_DATA;
1551
1552			if (tr_idx == num_of_sets - 1)
1553				/* The last operation is always a tr */
1554				p_op[op_idx].op_indicator =
1555					IMGU_ABI_ACC_OP_END_OF_OPS;
1556			else if (tr_idx == num_of_sets - 2)
1557				if (process_lines_after_grid == 0)
1558					/*
1559					 * No additional pl op left -
1560					 * this op is left as lats of cycle
1561					 */
1562					p_op[op_idx].op_indicator =
1563						IMGU_ABI_ACC_OP_END_OF_ACK;
1564				else
1565					/*
1566					 * We still have to process-lines after
1567					 * the grid so have one more pl op
1568					 */
1569					p_op[op_idx].op_indicator =
1570						IMGU_ABI_ACC_OP_IDLE;
1571			else
1572				/* Default - usually there's a pl after a tr */
1573				p_op[op_idx].op_indicator =
1574					IMGU_ABI_ACC_OP_IDLE;
1575
1576			op_idx++;
1577			if (p_tr) {
1578				p_tr[tr_idx].set_number = tr_set_num;
1579				tr_set_num = 1 - tr_set_num;
1580			}
1581			tr_idx++;
1582		}
1583
1584		/* process_lines */
1585		if (pl_idx < num_of_process_lines) {
1586			if (op_idx >= pl->max_op || pl_idx >= pl->max_tr)
1587				return -EINVAL;
1588
1589			p_op[op_idx].op_type =
1590				IMGU_ABI_ACC_OPTYPE_PROCESS_LINES;
1591			if (pl_idx == 0)
1592				if (num_of_process_lines == 1)
1593					/* Only one pl op */
1594					p_op[op_idx].op_indicator =
1595						IMGU_ABI_ACC_OP_END_OF_ACK;
1596				else
1597					/* On init - do two pl ops */
1598					p_op[op_idx].op_indicator =
1599						IMGU_ABI_ACC_OP_IDLE;
1600			else
1601				/* Usually pl is the end of the ack cycle */
1602				p_op[op_idx].op_indicator =
1603					IMGU_ABI_ACC_OP_END_OF_ACK;
1604
1605			op_idx++;
1606
1607			if (pl_idx == 0)
1608				/* First process line */
1609				p_pl[pl_idx].lines = first_process_lines;
1610			else if (pl_idx == num_of_sets - 1)
1611				/* Last in grid */
1612				p_pl[pl_idx].lines = last_process_lines_in_grid;
1613			else if (pl_idx == num_of_process_lines - 1)
1614				/* After the grid */
1615				p_pl[pl_idx].lines = process_lines_after_grid;
1616			else
1617				/* Inside the grid */
1618				p_pl[pl_idx].lines = process_lines;
1619
1620			if (p_tr) {
1621				p_pl[pl_idx].cfg_set = pl_cfg_set;
1622				pl_cfg_set = 1 - pl_cfg_set;
1623			}
1624			pl_idx++;
1625		}
1626	}
1627
1628	return 0;
1629}
1630
1631static int imgu_css_af_ops_calc(struct imgu_css *css, unsigned int pipe,
1632				struct imgu_abi_af_config *af_config)
1633{
1634	struct imgu_abi_af_intra_frame_operations_data *to =
1635		&af_config->operations_data;
1636	struct imgu_css_pipe *css_pipe = &css->pipes[pipe];
1637	struct imgu_fw_info *bi =
1638		&css->fwp->binary_header[css_pipe->bindex];
1639
1640	struct process_lines pl = {
1641		.image_height = css_pipe->rect[IPU3_CSS_RECT_BDS].height,
1642		.grid_height = af_config->config.grid_cfg.height,
1643		.block_height =
1644			1 << af_config->config.grid_cfg.block_height_log2,
1645		.y_start = af_config->config.grid_cfg.y_start &
1646			IPU3_UAPI_GRID_START_MASK,
1647		.grid_height_per_slice =
1648			af_config->stripes[0].grid_cfg.height_per_slice,
1649		.max_op = IMGU_ABI_AF_MAX_OPERATIONS,
1650		.max_tr = IMGU_ABI_AF_MAX_TRANSFERS,
1651		.acc_enable = bi->info.isp.sp.enable.af,
1652	};
1653
1654	return imgu_css_acc_process_lines(&pl, to->ops, to->process_lines_data,
1655					  NULL);
1656}
1657
1658static int
1659imgu_css_awb_fr_ops_calc(struct imgu_css *css, unsigned int pipe,
1660			 struct imgu_abi_awb_fr_config *awb_fr_config)
1661{
1662	struct imgu_abi_awb_fr_intra_frame_operations_data *to =
1663		&awb_fr_config->operations_data;
1664	struct imgu_css_pipe *css_pipe = &css->pipes[pipe];
1665	struct imgu_fw_info *bi =
1666		&css->fwp->binary_header[css_pipe->bindex];
1667	struct process_lines pl = {
1668		.image_height = css_pipe->rect[IPU3_CSS_RECT_BDS].height,
1669		.grid_height = awb_fr_config->config.grid_cfg.height,
1670		.block_height =
1671			1 << awb_fr_config->config.grid_cfg.block_height_log2,
1672		.y_start = awb_fr_config->config.grid_cfg.y_start &
1673			IPU3_UAPI_GRID_START_MASK,
1674		.grid_height_per_slice =
1675			awb_fr_config->stripes[0].grid_cfg.height_per_slice,
1676		.max_op = IMGU_ABI_AWB_FR_MAX_OPERATIONS,
1677		.max_tr = IMGU_ABI_AWB_FR_MAX_PROCESS_LINES,
1678		.acc_enable = bi->info.isp.sp.enable.awb_fr_acc,
1679	};
1680
1681	return imgu_css_acc_process_lines(&pl, to->ops, to->process_lines_data,
1682					  NULL);
1683}
1684
1685static int imgu_css_awb_ops_calc(struct imgu_css *css, unsigned int pipe,
1686				 struct imgu_abi_awb_config *awb_config)
1687{
1688	struct imgu_abi_awb_intra_frame_operations_data *to =
1689		&awb_config->operations_data;
1690	struct imgu_css_pipe *css_pipe = &css->pipes[pipe];
1691	struct imgu_fw_info *bi =
1692		&css->fwp->binary_header[css_pipe->bindex];
1693
1694	struct process_lines pl = {
1695		.image_height = css_pipe->rect[IPU3_CSS_RECT_BDS].height,
1696		.grid_height = awb_config->config.grid.height,
1697		.block_height =
1698			1 << awb_config->config.grid.block_height_log2,
1699		.y_start = awb_config->config.grid.y_start,
1700		.grid_height_per_slice =
1701			awb_config->stripes[0].grid.height_per_slice,
1702		.max_op = IMGU_ABI_AWB_MAX_OPERATIONS,
1703		.max_tr = IMGU_ABI_AWB_MAX_TRANSFERS,
1704		.acc_enable = bi->info.isp.sp.enable.awb_acc,
1705	};
1706
1707	return imgu_css_acc_process_lines(&pl, to->ops, to->process_lines_data,
1708					  to->transfer_data);
1709}
1710
1711static u16 imgu_css_grid_end(u16 start, u8 width, u8 block_width_log2)
1712{
1713	return (start & IPU3_UAPI_GRID_START_MASK) +
1714		(width << block_width_log2) - 1;
1715}
1716
1717static void imgu_css_grid_end_calc(struct ipu3_uapi_grid_config *grid_cfg)
1718{
1719	grid_cfg->x_end = imgu_css_grid_end(grid_cfg->x_start, grid_cfg->width,
1720					    grid_cfg->block_width_log2);
1721	grid_cfg->y_end = imgu_css_grid_end(grid_cfg->y_start, grid_cfg->height,
1722					    grid_cfg->block_height_log2);
1723}
1724
1725/****************** config computation *****************************/
1726
1727static int imgu_css_cfg_acc_stripe(struct imgu_css *css, unsigned int pipe,
1728				   struct imgu_abi_acc_param *acc)
1729{
1730	struct imgu_css_pipe *css_pipe = &css->pipes[pipe];
1731	const struct imgu_fw_info *bi =
1732		&css->fwp->binary_header[css_pipe->bindex];
1733	struct imgu_css_scaler_info scaler_luma, scaler_chroma;
1734	const unsigned int stripes = bi->info.isp.sp.iterator.num_stripes;
1735	const unsigned int f = IPU3_UAPI_ISP_VEC_ELEMS * 2;
1736	unsigned int bds_ds, i;
1737
1738	memset(acc, 0, sizeof(*acc));
1739
1740	/* acc_param: osys_config */
1741
1742	if (imgu_css_osys_calc(css, pipe, stripes, &acc->osys, &scaler_luma,
1743			       &scaler_chroma, acc->stripe.block_stripes))
1744		return -EINVAL;
1745
1746	/* acc_param: stripe data */
1747
1748	/*
1749	 * For the striped case the approach is as follows:
1750	 * 1. down-scaled stripes are calculated - with 128 overlap
1751	 *    (this is the main limiter therefore it's first)
1752	 * 2. input stripes are derived by up-scaling the down-scaled stripes
1753	 *    (there are no alignment requirements on input stripes)
1754	 * 3. output stripes are derived from down-scaled stripes too
1755	 */
1756
1757	acc->stripe.num_of_stripes = stripes;
1758	acc->stripe.input_frame.width =
1759		css_pipe->queue[IPU3_CSS_QUEUE_IN].fmt.mpix.width;
1760	acc->stripe.input_frame.height =
1761		css_pipe->queue[IPU3_CSS_QUEUE_IN].fmt.mpix.height;
1762	acc->stripe.input_frame.bayer_order =
1763		css_pipe->queue[IPU3_CSS_QUEUE_IN].css_fmt->bayer_order;
1764
1765	for (i = 0; i < stripes; i++)
1766		acc->stripe.bds_out_stripes[i].height =
1767					css_pipe->rect[IPU3_CSS_RECT_BDS].height;
1768	acc->stripe.bds_out_stripes[0].offset = 0;
1769	if (stripes <= 1) {
1770		acc->stripe.bds_out_stripes[0].width =
1771			ALIGN(css_pipe->rect[IPU3_CSS_RECT_BDS].width, f);
1772	} else {
1773		/* Image processing is divided into two stripes */
1774		acc->stripe.bds_out_stripes[0].width =
1775			acc->stripe.bds_out_stripes[1].width =
1776			(css_pipe->rect[IPU3_CSS_RECT_BDS].width / 2 & ~(f - 1)) + f;
1777		/*
1778		 * Sum of width of the two stripes should not be smaller
1779		 * than output width and must be even times of overlapping
1780		 * unit f.
1781		 */
1782		if ((css_pipe->rect[IPU3_CSS_RECT_BDS].width / f & 1) !=
1783		    !!(css_pipe->rect[IPU3_CSS_RECT_BDS].width & (f - 1)))
1784			acc->stripe.bds_out_stripes[0].width += f;
1785		if ((css_pipe->rect[IPU3_CSS_RECT_BDS].width / f & 1) &&
1786		    (css_pipe->rect[IPU3_CSS_RECT_BDS].width & (f - 1))) {
1787			acc->stripe.bds_out_stripes[0].width += f;
1788			acc->stripe.bds_out_stripes[1].width += f;
1789		}
1790		/* Overlap between stripes is IPU3_UAPI_ISP_VEC_ELEMS * 4 */
1791		acc->stripe.bds_out_stripes[1].offset =
1792			acc->stripe.bds_out_stripes[0].width - 2 * f;
1793	}
1794
1795	acc->stripe.effective_stripes[0].height =
1796				css_pipe->rect[IPU3_CSS_RECT_EFFECTIVE].height;
1797	acc->stripe.effective_stripes[0].offset = 0;
1798	acc->stripe.bds_out_stripes_no_overlap[0].height =
1799				css_pipe->rect[IPU3_CSS_RECT_BDS].height;
1800	acc->stripe.bds_out_stripes_no_overlap[0].offset = 0;
1801	acc->stripe.output_stripes[0].height =
1802				css_pipe->queue[IPU3_CSS_QUEUE_OUT].fmt.mpix.height;
1803	acc->stripe.output_stripes[0].offset = 0;
1804	if (stripes <= 1) {
1805		acc->stripe.down_scaled_stripes[0].width =
1806				css_pipe->rect[IPU3_CSS_RECT_BDS].width;
1807		acc->stripe.down_scaled_stripes[0].height =
1808				css_pipe->rect[IPU3_CSS_RECT_BDS].height;
1809		acc->stripe.down_scaled_stripes[0].offset = 0;
1810
1811		acc->stripe.effective_stripes[0].width =
1812				css_pipe->rect[IPU3_CSS_RECT_EFFECTIVE].width;
1813		acc->stripe.bds_out_stripes_no_overlap[0].width =
1814			ALIGN(css_pipe->rect[IPU3_CSS_RECT_BDS].width, f);
1815
1816		acc->stripe.output_stripes[0].width =
1817			css_pipe->queue[IPU3_CSS_QUEUE_OUT].fmt.mpix.width;
1818	} else { /* Two stripes */
1819		bds_ds = css_pipe->rect[IPU3_CSS_RECT_EFFECTIVE].width *
1820				IMGU_BDS_GRANULARITY /
1821				css_pipe->rect[IPU3_CSS_RECT_BDS].width;
1822
1823		acc->stripe.down_scaled_stripes[0] =
1824			acc->stripe.bds_out_stripes[0];
1825		acc->stripe.down_scaled_stripes[1] =
1826			acc->stripe.bds_out_stripes[1];
1827		if (!IS_ALIGNED(css_pipe->rect[IPU3_CSS_RECT_BDS].width, f))
1828			acc->stripe.down_scaled_stripes[1].width +=
1829				(css_pipe->rect[IPU3_CSS_RECT_BDS].width
1830				& (f - 1)) - f;
1831
1832		acc->stripe.effective_stripes[0].width = bds_ds *
1833			acc->stripe.down_scaled_stripes[0].width /
1834			IMGU_BDS_GRANULARITY;
1835		acc->stripe.effective_stripes[1].width = bds_ds *
1836			acc->stripe.down_scaled_stripes[1].width /
1837			IMGU_BDS_GRANULARITY;
1838		acc->stripe.effective_stripes[1].height =
1839			css_pipe->rect[IPU3_CSS_RECT_EFFECTIVE].height;
1840		acc->stripe.effective_stripes[1].offset = bds_ds *
1841			acc->stripe.down_scaled_stripes[1].offset /
1842			IMGU_BDS_GRANULARITY;
1843
1844		acc->stripe.bds_out_stripes_no_overlap[0].width =
1845		acc->stripe.bds_out_stripes_no_overlap[1].offset =
1846			ALIGN(css_pipe->rect[IPU3_CSS_RECT_BDS].width, 2 * f) / 2;
1847		acc->stripe.bds_out_stripes_no_overlap[1].width =
1848			DIV_ROUND_UP(css_pipe->rect[IPU3_CSS_RECT_BDS].width, f)
1849			/ 2 * f;
1850		acc->stripe.bds_out_stripes_no_overlap[1].height =
1851			css_pipe->rect[IPU3_CSS_RECT_BDS].height;
1852
1853		acc->stripe.output_stripes[0].width =
1854			acc->stripe.down_scaled_stripes[0].width - f;
1855		acc->stripe.output_stripes[1].width =
1856			acc->stripe.down_scaled_stripes[1].width - f;
1857		acc->stripe.output_stripes[1].height =
1858			css_pipe->queue[IPU3_CSS_QUEUE_OUT].fmt.mpix.height;
1859		acc->stripe.output_stripes[1].offset =
1860			acc->stripe.output_stripes[0].width;
1861	}
1862
1863	acc->stripe.output_system_in_frame_width =
1864		css_pipe->rect[IPU3_CSS_RECT_GDC].width;
1865	acc->stripe.output_system_in_frame_height =
1866		css_pipe->rect[IPU3_CSS_RECT_GDC].height;
1867
1868	acc->stripe.effective_frame_width =
1869				css_pipe->rect[IPU3_CSS_RECT_EFFECTIVE].width;
1870	acc->stripe.bds_frame_width = css_pipe->rect[IPU3_CSS_RECT_BDS].width;
1871	acc->stripe.out_frame_width =
1872		css_pipe->queue[IPU3_CSS_QUEUE_OUT].fmt.mpix.width;
1873	acc->stripe.out_frame_height =
1874		css_pipe->queue[IPU3_CSS_QUEUE_OUT].fmt.mpix.height;
1875	acc->stripe.gdc_in_buffer_width =
1876		css_pipe->aux_frames[IPU3_CSS_AUX_FRAME_REF].bytesperline /
1877		css_pipe->aux_frames[IPU3_CSS_AUX_FRAME_REF].bytesperpixel;
1878	acc->stripe.gdc_in_buffer_height =
1879		css_pipe->aux_frames[IPU3_CSS_AUX_FRAME_REF].height;
1880	acc->stripe.gdc_in_buffer_offset_x = IMGU_GDC_BUF_X;
1881	acc->stripe.gdc_in_buffer_offset_y = IMGU_GDC_BUF_Y;
1882	acc->stripe.display_frame_width =
1883		css_pipe->queue[IPU3_CSS_QUEUE_VF].fmt.mpix.width;
1884	acc->stripe.display_frame_height =
1885		css_pipe->queue[IPU3_CSS_QUEUE_VF].fmt.mpix.height;
1886	acc->stripe.bds_aligned_frame_width =
1887		roundup(css_pipe->rect[IPU3_CSS_RECT_BDS].width,
1888			2 * IPU3_UAPI_ISP_VEC_ELEMS);
1889
1890	if (stripes > 1)
1891		acc->stripe.half_overlap_vectors =
1892			IMGU_STRIPE_FIXED_HALF_OVERLAP;
1893	else
1894		acc->stripe.half_overlap_vectors = 0;
1895
1896	return 0;
1897}
1898
1899static void imgu_css_cfg_acc_dvs(struct imgu_css *css,
1900				 struct imgu_abi_acc_param *acc,
1901				 unsigned int pipe)
1902{
1903	unsigned int i;
1904	struct imgu_css_pipe *css_pipe = &css->pipes[pipe];
1905
1906	/* Disable DVS statistics */
1907	acc->dvs_stat.operations_data.process_lines_data[0].lines =
1908				css_pipe->rect[IPU3_CSS_RECT_BDS].height;
1909	acc->dvs_stat.operations_data.process_lines_data[0].cfg_set = 0;
1910	acc->dvs_stat.operations_data.ops[0].op_type =
1911		IMGU_ABI_ACC_OPTYPE_PROCESS_LINES;
1912	acc->dvs_stat.operations_data.ops[0].op_indicator =
1913		IMGU_ABI_ACC_OP_NO_OPS;
1914	for (i = 0; i < IMGU_ABI_DVS_STAT_LEVELS; i++)
1915		acc->dvs_stat.cfg.grd_config[i].enable = 0;
1916}
1917
1918static void acc_bds_per_stripe_data(struct imgu_css *css,
1919				    struct imgu_abi_acc_param *acc,
1920				    const int i, unsigned int pipe)
1921{
1922	struct imgu_css_pipe *css_pipe = &css->pipes[pipe];
1923
1924	acc->bds.per_stripe.aligned_data[i].data.crop.hor_crop_en = 0;
1925	acc->bds.per_stripe.aligned_data[i].data.crop.hor_crop_start = 0;
1926	acc->bds.per_stripe.aligned_data[i].data.crop.hor_crop_end = 0;
1927	acc->bds.per_stripe.aligned_data[i].data.hor_ctrl0 =
1928		acc->bds.hor.hor_ctrl0;
1929	acc->bds.per_stripe.aligned_data[i].data.hor_ctrl0.out_frame_width =
1930		acc->stripe.down_scaled_stripes[i].width;
1931	acc->bds.per_stripe.aligned_data[i].data.ver_ctrl1.out_frame_width =
1932		acc->stripe.down_scaled_stripes[i].width;
1933	acc->bds.per_stripe.aligned_data[i].data.ver_ctrl1.out_frame_height =
1934		css_pipe->rect[IPU3_CSS_RECT_BDS].height;
1935}
1936
1937/*
1938 * Configure `acc' parameters. `acc_old' contains the old values (or is NULL)
1939 * and `acc_user' contains new prospective values. `use' contains flags
1940 * telling which fields to take from the old values (or generate if it is NULL)
1941 * and which to take from the new user values.
1942 */
1943int imgu_css_cfg_acc(struct imgu_css *css, unsigned int pipe,
1944		     struct ipu3_uapi_flags *use,
1945		     struct imgu_abi_acc_param *acc,
1946		     struct imgu_abi_acc_param *acc_old,
1947		     struct ipu3_uapi_acc_param *acc_user)
1948{
1949	struct imgu_css_pipe *css_pipe = &css->pipes[pipe];
1950	const struct imgu_fw_info *bi =
1951		&css->fwp->binary_header[css_pipe->bindex];
1952	const unsigned int stripes = bi->info.isp.sp.iterator.num_stripes;
1953	const unsigned int tnr_frame_width =
1954		acc->stripe.bds_aligned_frame_width;
1955	const unsigned int min_overlap = 10;
1956	const struct v4l2_pix_format_mplane *pixm =
1957		&css_pipe->queue[IPU3_CSS_QUEUE_IN].fmt.mpix;
1958	const struct imgu_css_bds_config *cfg_bds;
1959	struct imgu_abi_input_feeder_data *feeder_data;
1960
1961	unsigned int bds_ds, ofs_x, ofs_y, i, width, height;
1962	u8 b_w_log2; /* Block width log2 */
1963
1964	/* Update stripe using chroma and luma */
1965
1966	if (imgu_css_cfg_acc_stripe(css, pipe, acc))
1967		return -EINVAL;
1968
1969	/* acc_param: input_feeder_config */
1970
1971	ofs_x = ((pixm->width -
1972		  css_pipe->rect[IPU3_CSS_RECT_EFFECTIVE].width) >> 1) & ~1;
1973	ofs_x += css_pipe->queue[IPU3_CSS_QUEUE_IN].css_fmt->bayer_order ==
1974		IMGU_ABI_BAYER_ORDER_RGGB ||
1975		css_pipe->queue[IPU3_CSS_QUEUE_IN].css_fmt->bayer_order ==
1976		IMGU_ABI_BAYER_ORDER_GBRG ? 1 : 0;
1977	ofs_y = ((pixm->height -
1978		  css_pipe->rect[IPU3_CSS_RECT_EFFECTIVE].height) >> 1) & ~1;
1979	ofs_y += css_pipe->queue[IPU3_CSS_QUEUE_IN].css_fmt->bayer_order ==
1980		IMGU_ABI_BAYER_ORDER_BGGR ||
1981		css_pipe->queue[IPU3_CSS_QUEUE_IN].css_fmt->bayer_order ==
1982		IMGU_ABI_BAYER_ORDER_GBRG ? 1 : 0;
1983	acc->input_feeder.data.row_stride = pixm->plane_fmt[0].bytesperline;
1984	acc->input_feeder.data.start_row_address =
1985		ofs_x / IMGU_PIXELS_PER_WORD * IMGU_BYTES_PER_WORD +
1986		ofs_y * acc->input_feeder.data.row_stride;
1987	acc->input_feeder.data.start_pixel = ofs_x % IMGU_PIXELS_PER_WORD;
1988
1989	acc->input_feeder.data_per_stripe.input_feeder_data[0].data =
1990		acc->input_feeder.data;
1991
1992	ofs_x += acc->stripe.effective_stripes[1].offset;
1993
1994	feeder_data =
1995		&acc->input_feeder.data_per_stripe.input_feeder_data[1].data;
1996	feeder_data->row_stride = acc->input_feeder.data.row_stride;
1997	feeder_data->start_row_address =
1998		ofs_x / IMGU_PIXELS_PER_WORD * IMGU_BYTES_PER_WORD +
1999		ofs_y * acc->input_feeder.data.row_stride;
2000	feeder_data->start_pixel = ofs_x % IMGU_PIXELS_PER_WORD;
2001
2002	/* acc_param: bnr_static_config */
2003
2004	/*
2005	 * Originate from user or be the original default values if user has
2006	 * never set them before, when user gives a new set of parameters,
2007	 * for each chunk in the parameter structure there is a flag use->xxx
2008	 * whether to use the user-provided parameter or not. If not, the
2009	 * parameter remains unchanged in the driver:
2010	 * it's value is taken from acc_old.
2011	 */
2012	if (use && use->acc_bnr) {
2013		/* Take values from user */
2014		acc->bnr = acc_user->bnr;
2015	} else if (acc_old) {
2016		/* Use old value */
2017		acc->bnr = acc_old->bnr;
2018	} else {
2019		/* Calculate from scratch */
2020		acc->bnr = imgu_css_bnr_defaults;
2021	}
2022
2023	acc->bnr.column_size = tnr_frame_width;
2024
2025	/* acc_param: bnr_static_config_green_disparity */
2026
2027	if (use && use->acc_green_disparity) {
2028		/* Take values from user */
2029		acc->green_disparity = acc_user->green_disparity;
2030	} else if (acc_old) {
2031		/* Use old value */
2032		acc->green_disparity = acc_old->green_disparity;
2033	} else {
2034		/* Calculate from scratch */
2035		memset(&acc->green_disparity, 0, sizeof(acc->green_disparity));
2036	}
2037
2038	/* acc_param: dm_config */
2039
2040	if (use && use->acc_dm) {
2041		/* Take values from user */
2042		acc->dm = acc_user->dm;
2043	} else if (acc_old) {
2044		/* Use old value */
2045		acc->dm = acc_old->dm;
2046	} else {
2047		/* Calculate from scratch */
2048		acc->dm = imgu_css_dm_defaults;
2049	}
2050
2051	acc->dm.frame_width = tnr_frame_width;
2052
2053	/* acc_param: ccm_mat_config */
2054
2055	if (use && use->acc_ccm) {
2056		/* Take values from user */
2057		acc->ccm = acc_user->ccm;
2058	} else if (acc_old) {
2059		/* Use old value */
2060		acc->ccm = acc_old->ccm;
2061	} else {
2062		/* Calculate from scratch */
2063		acc->ccm = imgu_css_ccm_defaults;
2064	}
2065
2066	/* acc_param: gamma_config */
2067
2068	if (use && use->acc_gamma) {
2069		/* Take values from user */
2070		acc->gamma = acc_user->gamma;
2071	} else if (acc_old) {
2072		/* Use old value */
2073		acc->gamma = acc_old->gamma;
2074	} else {
2075		/* Calculate from scratch */
2076		acc->gamma.gc_ctrl.enable = 1;
2077		acc->gamma.gc_lut = imgu_css_gamma_lut;
2078	}
2079
2080	/* acc_param: csc_mat_config */
2081
2082	if (use && use->acc_csc) {
2083		/* Take values from user */
2084		acc->csc = acc_user->csc;
2085	} else if (acc_old) {
2086		/* Use old value */
2087		acc->csc = acc_old->csc;
2088	} else {
2089		/* Calculate from scratch */
2090		acc->csc = imgu_css_csc_defaults;
2091	}
2092
2093	/* acc_param: cds_params */
2094
2095	if (use && use->acc_cds) {
2096		/* Take values from user */
2097		acc->cds = acc_user->cds;
2098	} else if (acc_old) {
2099		/* Use old value */
2100		acc->cds = acc_old->cds;
2101	} else {
2102		/* Calculate from scratch */
2103		acc->cds = imgu_css_cds_defaults;
2104	}
2105
2106	/* acc_param: shd_config */
2107
2108	if (use && use->acc_shd) {
2109		/* Take values from user */
2110		acc->shd.shd = acc_user->shd.shd;
2111		acc->shd.shd_lut = acc_user->shd.shd_lut;
2112	} else if (acc_old) {
2113		/* Use old value */
2114		acc->shd.shd = acc_old->shd.shd;
2115		acc->shd.shd_lut = acc_old->shd.shd_lut;
2116	} else {
2117		/* Calculate from scratch */
2118		acc->shd.shd = imgu_css_shd_defaults;
2119		memset(&acc->shd.shd_lut, 0, sizeof(acc->shd.shd_lut));
2120	}
2121
2122	if (acc->shd.shd.grid.width <= 0)
2123		return -EINVAL;
2124
2125	acc->shd.shd.grid.grid_height_per_slice =
2126		IMGU_ABI_SHD_MAX_CELLS_PER_SET / acc->shd.shd.grid.width;
2127
2128	if (acc->shd.shd.grid.grid_height_per_slice <= 0)
2129		return -EINVAL;
2130
2131	acc->shd.shd.general.init_set_vrt_offst_ul =
2132				(-acc->shd.shd.grid.y_start >>
2133				 acc->shd.shd.grid.block_height_log2) %
2134				acc->shd.shd.grid.grid_height_per_slice;
2135
2136	if (imgu_css_shd_ops_calc(&acc->shd.shd_ops, &acc->shd.shd.grid,
2137				  css_pipe->rect[IPU3_CSS_RECT_BDS].height))
2138		return -EINVAL;
2139
2140	/* acc_param: dvs_stat_config */
2141	imgu_css_cfg_acc_dvs(css, acc, pipe);
2142
2143	/* acc_param: yuvp1_iefd_config */
2144
2145	if (use && use->acc_iefd) {
2146		/* Take values from user */
2147		acc->iefd = acc_user->iefd;
2148	} else if (acc_old) {
2149		/* Use old value */
2150		acc->iefd = acc_old->iefd;
2151	} else {
2152		/* Calculate from scratch */
2153		acc->iefd = imgu_css_iefd_defaults;
2154	}
2155
2156	/* acc_param: yuvp1_yds_config yds_c0 */
2157
2158	if (use && use->acc_yds_c0) {
2159		/* Take values from user */
2160		acc->yds_c0 = acc_user->yds_c0;
2161	} else if (acc_old) {
2162		/* Use old value */
2163		acc->yds_c0 = acc_old->yds_c0;
2164	} else {
2165		/* Calculate from scratch */
2166		acc->yds_c0 = imgu_css_yds_defaults;
2167	}
2168
2169	/* acc_param: yuvp1_chnr_config chnr_c0 */
2170
2171	if (use && use->acc_chnr_c0) {
2172		/* Take values from user */
2173		acc->chnr_c0 = acc_user->chnr_c0;
2174	} else if (acc_old) {
2175		/* Use old value */
2176		acc->chnr_c0 = acc_old->chnr_c0;
2177	} else {
2178		/* Calculate from scratch */
2179		acc->chnr_c0 = imgu_css_chnr_defaults;
2180	}
2181
2182	/* acc_param: yuvp1_y_ee_nr_config */
2183
2184	if (use && use->acc_y_ee_nr) {
2185		/* Take values from user */
2186		acc->y_ee_nr = acc_user->y_ee_nr;
2187	} else if (acc_old) {
2188		/* Use old value */
2189		acc->y_ee_nr = acc_old->y_ee_nr;
2190	} else {
2191		/* Calculate from scratch */
2192		acc->y_ee_nr = imgu_css_y_ee_nr_defaults;
2193	}
2194
2195	/* acc_param: yuvp1_yds_config yds */
2196
2197	if (use && use->acc_yds) {
2198		/* Take values from user */
2199		acc->yds = acc_user->yds;
2200	} else if (acc_old) {
2201		/* Use old value */
2202		acc->yds = acc_old->yds;
2203	} else {
2204		/* Calculate from scratch */
2205		acc->yds = imgu_css_yds_defaults;
2206	}
2207
2208	/* acc_param: yuvp1_chnr_config chnr */
2209
2210	if (use && use->acc_chnr) {
2211		/* Take values from user */
2212		acc->chnr = acc_user->chnr;
2213	} else if (acc_old) {
2214		/* Use old value */
2215		acc->chnr = acc_old->chnr;
2216	} else {
2217		/* Calculate from scratch */
2218		acc->chnr = imgu_css_chnr_defaults;
2219	}
2220
2221	/* acc_param: yuvp2_y_tm_lut_static_config */
2222
2223	for (i = 0; i < IMGU_ABI_YUVP2_YTM_LUT_ENTRIES; i++)
2224		acc->ytm.entries[i] = i * 32;
2225	acc->ytm.enable = 0;	/* Always disabled on IPU3 */
2226
2227	/* acc_param: yuvp1_yds_config yds2 */
2228
2229	if (use && use->acc_yds2) {
2230		/* Take values from user */
2231		acc->yds2 = acc_user->yds2;
2232	} else if (acc_old) {
2233		/* Use old value */
2234		acc->yds2 = acc_old->yds2;
2235	} else {
2236		/* Calculate from scratch */
2237		acc->yds2 = imgu_css_yds_defaults;
2238	}
2239
2240	/* acc_param: yuvp2_tcc_static_config */
2241
2242	if (use && use->acc_tcc) {
2243		/* Take values from user */
2244		acc->tcc = acc_user->tcc;
2245	} else if (acc_old) {
2246		/* Use old value */
2247		acc->tcc = acc_old->tcc;
2248	} else {
2249		/* Calculate from scratch */
2250		memset(&acc->tcc, 0, sizeof(acc->tcc));
2251
2252		acc->tcc.gen_control.en = 1;
2253		acc->tcc.gen_control.blend_shift = 3;
2254		acc->tcc.gen_control.gain_according_to_y_only = 1;
2255		acc->tcc.gen_control.gamma = 8;
2256		acc->tcc.gen_control.delta = 0;
2257
2258		for (i = 0; i < IPU3_UAPI_YUVP2_TCC_MACC_TABLE_ELEMENTS; i++) {
2259			acc->tcc.macc_table.entries[i].a = 1024;
2260			acc->tcc.macc_table.entries[i].b = 0;
2261			acc->tcc.macc_table.entries[i].c = 0;
2262			acc->tcc.macc_table.entries[i].d = 1024;
2263		}
2264
2265		acc->tcc.inv_y_lut.entries[6] = 1023;
2266		for (i = 7; i < IPU3_UAPI_YUVP2_TCC_INV_Y_LUT_ELEMENTS; i++)
2267			acc->tcc.inv_y_lut.entries[i] = 1024 >> (i - 6);
2268
2269		acc->tcc.gain_pcwl = imgu_css_tcc_gain_pcwl_lut;
2270		acc->tcc.r_sqr_lut = imgu_css_tcc_r_sqr_lut;
2271	}
2272
2273	/* acc_param: dpc_config */
2274
2275	if (use && use->acc_dpc)
2276		return -EINVAL;	/* Not supported yet */
2277
2278	/* Just disable by default */
2279	memset(&acc->dpc, 0, sizeof(acc->dpc));
2280
2281	/* acc_param: bds_config */
2282
2283	bds_ds = (css_pipe->rect[IPU3_CSS_RECT_EFFECTIVE].height *
2284		  IMGU_BDS_GRANULARITY) / css_pipe->rect[IPU3_CSS_RECT_BDS].height;
2285	if (bds_ds < IMGU_BDS_MIN_SF_INV ||
2286	    bds_ds - IMGU_BDS_MIN_SF_INV >= ARRAY_SIZE(imgu_css_bds_configs))
2287		return -EINVAL;
2288
2289	cfg_bds = &imgu_css_bds_configs[bds_ds - IMGU_BDS_MIN_SF_INV];
2290	acc->bds.hor.hor_ctrl1.hor_crop_en = 0;
2291	acc->bds.hor.hor_ctrl1.hor_crop_start = 0;
2292	acc->bds.hor.hor_ctrl1.hor_crop_end = 0;
2293	acc->bds.hor.hor_ctrl0.sample_patrn_length =
2294				cfg_bds->sample_patrn_length;
2295	acc->bds.hor.hor_ctrl0.hor_ds_en = cfg_bds->hor_ds_en;
2296	acc->bds.hor.hor_ctrl0.min_clip_val = IMGU_BDS_MIN_CLIP_VAL;
2297	acc->bds.hor.hor_ctrl0.max_clip_val = IMGU_BDS_MAX_CLIP_VAL;
2298	acc->bds.hor.hor_ctrl0.out_frame_width =
2299				css_pipe->rect[IPU3_CSS_RECT_BDS].width;
2300	acc->bds.hor.hor_ptrn_arr = cfg_bds->ptrn_arr;
2301	acc->bds.hor.hor_phase_arr = cfg_bds->hor_phase_arr;
2302	acc->bds.hor.hor_ctrl2.input_frame_height =
2303				css_pipe->rect[IPU3_CSS_RECT_EFFECTIVE].height;
2304	acc->bds.ver.ver_ctrl0.min_clip_val = IMGU_BDS_MIN_CLIP_VAL;
2305	acc->bds.ver.ver_ctrl0.max_clip_val = IMGU_BDS_MAX_CLIP_VAL;
2306	acc->bds.ver.ver_ctrl0.sample_patrn_length =
2307				cfg_bds->sample_patrn_length;
2308	acc->bds.ver.ver_ctrl0.ver_ds_en = cfg_bds->ver_ds_en;
2309	acc->bds.ver.ver_ptrn_arr = cfg_bds->ptrn_arr;
2310	acc->bds.ver.ver_phase_arr = cfg_bds->ver_phase_arr;
2311	acc->bds.ver.ver_ctrl1.out_frame_width =
2312				css_pipe->rect[IPU3_CSS_RECT_BDS].width;
2313	acc->bds.ver.ver_ctrl1.out_frame_height =
2314				css_pipe->rect[IPU3_CSS_RECT_BDS].height;
2315	for (i = 0; i < stripes; i++)
2316		acc_bds_per_stripe_data(css, acc, i, pipe);
2317
2318	acc->bds.enabled = cfg_bds->hor_ds_en || cfg_bds->ver_ds_en;
2319
2320	/* acc_param: anr_config */
2321
2322	if (use && use->acc_anr) {
2323		/* Take values from user */
2324		acc->anr.transform = acc_user->anr.transform;
2325		acc->anr.stitch.anr_stitch_en =
2326			acc_user->anr.stitch.anr_stitch_en;
2327		memcpy(acc->anr.stitch.pyramid, acc_user->anr.stitch.pyramid,
2328		       sizeof(acc->anr.stitch.pyramid));
2329	} else if (acc_old) {
2330		/* Use old value */
2331		acc->anr.transform = acc_old->anr.transform;
2332		acc->anr.stitch.anr_stitch_en =
2333			acc_old->anr.stitch.anr_stitch_en;
2334		memcpy(acc->anr.stitch.pyramid, acc_old->anr.stitch.pyramid,
2335		       sizeof(acc->anr.stitch.pyramid));
2336	} else {
2337		/* Calculate from scratch */
2338		acc->anr = imgu_css_anr_defaults;
2339	}
2340
2341	/* Always enabled */
2342	acc->anr.search.enable = 1;
2343	acc->anr.transform.enable = 1;
2344	acc->anr.tile2strm.enable = 1;
2345	acc->anr.tile2strm.frame_width =
2346		ALIGN(css_pipe->rect[IPU3_CSS_RECT_BDS].width, IMGU_ISP_VMEM_ALIGN);
2347	acc->anr.search.frame_width = acc->anr.tile2strm.frame_width;
2348	acc->anr.stitch.frame_width = acc->anr.tile2strm.frame_width;
2349	acc->anr.tile2strm.frame_height = css_pipe->rect[IPU3_CSS_RECT_BDS].height;
2350	acc->anr.search.frame_height = acc->anr.tile2strm.frame_height;
2351	acc->anr.stitch.frame_height = acc->anr.tile2strm.frame_height;
2352
2353	width = ALIGN(css_pipe->rect[IPU3_CSS_RECT_BDS].width, IMGU_ISP_VMEM_ALIGN);
2354	height = css_pipe->rect[IPU3_CSS_RECT_BDS].height;
2355
2356	if (acc->anr.transform.xreset + width > IPU3_UAPI_ANR_MAX_RESET)
2357		acc->anr.transform.xreset = IPU3_UAPI_ANR_MAX_RESET - width;
2358	if (acc->anr.transform.xreset < IPU3_UAPI_ANR_MIN_RESET)
2359		acc->anr.transform.xreset = IPU3_UAPI_ANR_MIN_RESET;
2360
2361	if (acc->anr.transform.yreset + height > IPU3_UAPI_ANR_MAX_RESET)
2362		acc->anr.transform.yreset = IPU3_UAPI_ANR_MAX_RESET - height;
2363	if (acc->anr.transform.yreset < IPU3_UAPI_ANR_MIN_RESET)
2364		acc->anr.transform.yreset = IPU3_UAPI_ANR_MIN_RESET;
2365
2366	/* acc_param: awb_fr_config */
2367
2368	if (use && use->acc_awb_fr) {
2369		/* Take values from user */
2370		acc->awb_fr.config = acc_user->awb_fr;
2371	} else if (acc_old) {
2372		/* Use old value */
2373		acc->awb_fr.config = acc_old->awb_fr.config;
2374	} else {
2375		/* Set from scratch */
2376		acc->awb_fr.config = imgu_css_awb_fr_defaults;
2377	}
2378
2379	imgu_css_grid_end_calc(&acc->awb_fr.config.grid_cfg);
2380
2381	if (acc->awb_fr.config.grid_cfg.width <= 0)
2382		return -EINVAL;
2383
2384	acc->awb_fr.config.grid_cfg.height_per_slice =
2385		IMGU_ABI_AWB_FR_MAX_CELLS_PER_SET /
2386		acc->awb_fr.config.grid_cfg.width;
2387
2388	for (i = 0; i < stripes; i++)
2389		acc->awb_fr.stripes[i] = acc->awb_fr.config;
2390
2391	if (acc->awb_fr.config.grid_cfg.x_start >=
2392	    acc->stripe.down_scaled_stripes[1].offset + min_overlap) {
2393		/* Enable only for rightmost stripe, disable left */
2394		acc->awb_fr.stripes[0].grid_cfg.y_start &=
2395					~IPU3_UAPI_GRID_Y_START_EN;
2396	} else if (acc->awb_fr.config.grid_cfg.x_end <=
2397		   acc->stripe.bds_out_stripes[0].width - min_overlap) {
2398		/* Enable only for leftmost stripe, disable right */
2399		acc->awb_fr.stripes[1].grid_cfg.y_start &=
2400					~IPU3_UAPI_GRID_Y_START_EN;
2401	} else {
2402		/* Enable for both stripes */
2403		u16 end; /* width for grid end */
2404
2405		acc->awb_fr.stripes[0].grid_cfg.width =
2406			(acc->stripe.bds_out_stripes[0].width - min_overlap -
2407			 acc->awb_fr.config.grid_cfg.x_start + 1) >>
2408			acc->awb_fr.config.grid_cfg.block_width_log2;
2409		acc->awb_fr.stripes[1].grid_cfg.width =
2410			acc->awb_fr.config.grid_cfg.width -
2411			acc->awb_fr.stripes[0].grid_cfg.width;
2412
2413		b_w_log2 = acc->awb_fr.stripes[0].grid_cfg.block_width_log2;
2414		end = imgu_css_grid_end(acc->awb_fr.stripes[0].grid_cfg.x_start,
2415					acc->awb_fr.stripes[0].grid_cfg.width,
2416					b_w_log2);
2417		acc->awb_fr.stripes[0].grid_cfg.x_end = end;
2418
2419		acc->awb_fr.stripes[1].grid_cfg.x_start =
2420			(acc->awb_fr.stripes[0].grid_cfg.x_end + 1 -
2421			 acc->stripe.down_scaled_stripes[1].offset) &
2422			IPU3_UAPI_GRID_START_MASK;
2423		b_w_log2 = acc->awb_fr.stripes[1].grid_cfg.block_width_log2;
2424		end = imgu_css_grid_end(acc->awb_fr.stripes[1].grid_cfg.x_start,
2425					acc->awb_fr.stripes[1].grid_cfg.width,
2426					b_w_log2);
2427		acc->awb_fr.stripes[1].grid_cfg.x_end = end;
2428	}
2429
2430	/*
2431	 * To reduce complexity of debubbling and loading
2432	 * statistics fix grid_height_per_slice to 1 for both
2433	 * stripes.
2434	 */
2435	for (i = 0; i < stripes; i++)
2436		acc->awb_fr.stripes[i].grid_cfg.height_per_slice = 1;
2437
2438	if (imgu_css_awb_fr_ops_calc(css, pipe, &acc->awb_fr))
2439		return -EINVAL;
2440
2441	/* acc_param: ae_config */
2442
2443	if (use && use->acc_ae) {
2444		/* Take values from user */
2445		acc->ae.grid_cfg = acc_user->ae.grid_cfg;
2446		acc->ae.ae_ccm = acc_user->ae.ae_ccm;
2447		for (i = 0; i < IPU3_UAPI_AE_WEIGHTS; i++)
2448			acc->ae.weights[i] = acc_user->ae.weights[i];
2449	} else if (acc_old) {
2450		/* Use old value */
2451		acc->ae.grid_cfg = acc_old->ae.grid_cfg;
2452		acc->ae.ae_ccm = acc_old->ae.ae_ccm;
2453		for (i = 0; i < IPU3_UAPI_AE_WEIGHTS; i++)
2454			acc->ae.weights[i] = acc_old->ae.weights[i];
2455	} else {
2456		/* Set from scratch */
2457		static const struct ipu3_uapi_ae_weight_elem
2458			weight_def = { 1, 1, 1, 1, 1, 1, 1, 1 };
2459
2460		acc->ae.grid_cfg = imgu_css_ae_grid_defaults;
2461		acc->ae.ae_ccm = imgu_css_ae_ccm_defaults;
2462		for (i = 0; i < IPU3_UAPI_AE_WEIGHTS; i++)
2463			acc->ae.weights[i] = weight_def;
2464	}
2465
2466	b_w_log2 = acc->ae.grid_cfg.block_width_log2;
2467	acc->ae.grid_cfg.x_end = imgu_css_grid_end(acc->ae.grid_cfg.x_start,
2468						   acc->ae.grid_cfg.width,
2469						   b_w_log2);
2470	b_w_log2 = acc->ae.grid_cfg.block_height_log2;
2471	acc->ae.grid_cfg.y_end = imgu_css_grid_end(acc->ae.grid_cfg.y_start,
2472						   acc->ae.grid_cfg.height,
2473						   b_w_log2);
2474
2475	for (i = 0; i < stripes; i++)
2476		acc->ae.stripes[i].grid = acc->ae.grid_cfg;
2477
2478	if (acc->ae.grid_cfg.x_start >=
2479	    acc->stripe.down_scaled_stripes[1].offset) {
2480		/* Enable only for rightmost stripe, disable left */
2481		acc->ae.stripes[0].grid.ae_en = 0;
2482	} else if (acc->ae.grid_cfg.x_end <=
2483		   acc->stripe.bds_out_stripes[0].width) {
2484		/* Enable only for leftmost stripe, disable right */
2485		acc->ae.stripes[1].grid.ae_en = 0;
2486	} else {
2487		/* Enable for both stripes */
2488		u8 b_w_log2;
2489
2490		acc->ae.stripes[0].grid.width =
2491			(acc->stripe.bds_out_stripes[0].width -
2492			 acc->ae.grid_cfg.x_start + 1) >>
2493			acc->ae.grid_cfg.block_width_log2;
2494
2495		acc->ae.stripes[1].grid.width =
2496			acc->ae.grid_cfg.width - acc->ae.stripes[0].grid.width;
2497
2498		b_w_log2 = acc->ae.stripes[0].grid.block_width_log2;
2499		acc->ae.stripes[0].grid.x_end =
2500			imgu_css_grid_end(acc->ae.stripes[0].grid.x_start,
2501					  acc->ae.stripes[0].grid.width,
2502					  b_w_log2);
2503
2504		acc->ae.stripes[1].grid.x_start =
2505			(acc->ae.stripes[0].grid.x_end + 1 -
2506			 acc->stripe.down_scaled_stripes[1].offset) &
2507			IPU3_UAPI_GRID_START_MASK;
2508		b_w_log2 = acc->ae.stripes[1].grid.block_width_log2;
2509		acc->ae.stripes[1].grid.x_end =
2510			imgu_css_grid_end(acc->ae.stripes[1].grid.x_start,
2511					  acc->ae.stripes[1].grid.width,
2512					  b_w_log2);
2513	}
2514
2515	/* acc_param: af_config */
2516
2517	if (use && use->acc_af) {
2518		/* Take values from user */
2519		acc->af.config.filter_config = acc_user->af.filter_config;
2520		acc->af.config.grid_cfg = acc_user->af.grid_cfg;
2521	} else if (acc_old) {
2522		/* Use old value */
2523		acc->af.config = acc_old->af.config;
2524	} else {
2525		/* Set from scratch */
2526		acc->af.config.filter_config =
2527				imgu_css_af_defaults.filter_config;
2528		acc->af.config.grid_cfg = imgu_css_af_defaults.grid_cfg;
2529	}
2530
2531	imgu_css_grid_end_calc(&acc->af.config.grid_cfg);
2532
2533	if (acc->af.config.grid_cfg.width <= 0)
2534		return -EINVAL;
2535
2536	acc->af.config.grid_cfg.height_per_slice =
2537		IMGU_ABI_AF_MAX_CELLS_PER_SET / acc->af.config.grid_cfg.width;
2538	acc->af.config.frame_size.width =
2539		ALIGN(css_pipe->rect[IPU3_CSS_RECT_BDS].width, IMGU_ISP_VMEM_ALIGN);
2540	acc->af.config.frame_size.height =
2541		css_pipe->rect[IPU3_CSS_RECT_BDS].height;
2542
2543	if (acc->stripe.bds_out_stripes[0].width <= min_overlap)
2544		return -EINVAL;
2545
2546	for (i = 0; i < stripes; i++) {
2547		acc->af.stripes[i].grid_cfg = acc->af.config.grid_cfg;
2548		acc->af.stripes[i].frame_size.height =
2549				css_pipe->rect[IPU3_CSS_RECT_BDS].height;
2550		acc->af.stripes[i].frame_size.width =
2551			acc->stripe.bds_out_stripes[i].width;
2552	}
2553
2554	if (acc->af.config.grid_cfg.x_start >=
2555	    acc->stripe.down_scaled_stripes[1].offset + min_overlap) {
2556		/* Enable only for rightmost stripe, disable left */
2557		acc->af.stripes[0].grid_cfg.y_start &=
2558			~IPU3_UAPI_GRID_Y_START_EN;
2559		acc->af.stripes[1].grid_cfg.x_start =
2560			(acc->af.stripes[1].grid_cfg.x_start -
2561			 acc->stripe.down_scaled_stripes[1].offset) &
2562			IPU3_UAPI_GRID_START_MASK;
2563		b_w_log2 = acc->af.stripes[1].grid_cfg.block_width_log2;
2564		acc->af.stripes[1].grid_cfg.x_end =
2565			imgu_css_grid_end(acc->af.stripes[1].grid_cfg.x_start,
2566					  acc->af.stripes[1].grid_cfg.width,
2567					  b_w_log2);
2568	} else if (acc->af.config.grid_cfg.x_end <=
2569		   acc->stripe.bds_out_stripes[0].width - min_overlap) {
2570		/* Enable only for leftmost stripe, disable right */
2571		acc->af.stripes[1].grid_cfg.y_start &=
2572			~IPU3_UAPI_GRID_Y_START_EN;
2573	} else {
2574		/* Enable for both stripes */
2575
2576		acc->af.stripes[0].grid_cfg.width =
2577			(acc->stripe.bds_out_stripes[0].width - min_overlap -
2578			 acc->af.config.grid_cfg.x_start + 1) >>
2579			acc->af.config.grid_cfg.block_width_log2;
2580		acc->af.stripes[1].grid_cfg.width =
2581			acc->af.config.grid_cfg.width -
2582			acc->af.stripes[0].grid_cfg.width;
2583
2584		b_w_log2 = acc->af.stripes[0].grid_cfg.block_width_log2;
2585		acc->af.stripes[0].grid_cfg.x_end =
2586			imgu_css_grid_end(acc->af.stripes[0].grid_cfg.x_start,
2587					  acc->af.stripes[0].grid_cfg.width,
2588					  b_w_log2);
2589
2590		acc->af.stripes[1].grid_cfg.x_start =
2591			(acc->af.stripes[0].grid_cfg.x_end + 1 -
2592			 acc->stripe.down_scaled_stripes[1].offset) &
2593			IPU3_UAPI_GRID_START_MASK;
2594
2595		b_w_log2 = acc->af.stripes[1].grid_cfg.block_width_log2;
2596		acc->af.stripes[1].grid_cfg.x_end =
2597			imgu_css_grid_end(acc->af.stripes[1].grid_cfg.x_start,
2598					  acc->af.stripes[1].grid_cfg.width,
2599					  b_w_log2);
2600	}
2601
2602	/*
2603	 * To reduce complexity of debubbling and loading statistics
2604	 * fix grid_height_per_slice to 1 for both stripes
2605	 */
2606	for (i = 0; i < stripes; i++)
2607		acc->af.stripes[i].grid_cfg.height_per_slice = 1;
2608
2609	if (imgu_css_af_ops_calc(css, pipe, &acc->af))
2610		return -EINVAL;
2611
2612	/* acc_param: awb_config */
2613
2614	if (use && use->acc_awb) {
2615		/* Take values from user */
2616		acc->awb.config = acc_user->awb.config;
2617	} else if (acc_old) {
2618		/* Use old value */
2619		acc->awb.config = acc_old->awb.config;
2620	} else {
2621		/* Set from scratch */
2622		acc->awb.config = imgu_css_awb_defaults;
2623	}
2624
2625	if (acc->awb.config.grid.width <= 0)
2626		return -EINVAL;
2627
2628	acc->awb.config.grid.height_per_slice =
2629		IMGU_ABI_AWB_MAX_CELLS_PER_SET / acc->awb.config.grid.width,
2630	imgu_css_grid_end_calc(&acc->awb.config.grid);
2631
2632	for (i = 0; i < stripes; i++)
2633		acc->awb.stripes[i] = acc->awb.config;
2634
2635	if (acc->awb.config.grid.x_start >=
2636	    acc->stripe.down_scaled_stripes[1].offset + min_overlap) {
2637		/* Enable only for rightmost stripe, disable left */
2638		acc->awb.stripes[0].rgbs_thr_b &= ~IPU3_UAPI_AWB_RGBS_THR_B_EN;
2639
2640		acc->awb.stripes[1].grid.x_start =
2641			(acc->awb.stripes[1].grid.x_start -
2642			 acc->stripe.down_scaled_stripes[1].offset) &
2643			IPU3_UAPI_GRID_START_MASK;
2644
2645		b_w_log2 = acc->awb.stripes[1].grid.block_width_log2;
2646		acc->awb.stripes[1].grid.x_end =
2647			imgu_css_grid_end(acc->awb.stripes[1].grid.x_start,
2648					  acc->awb.stripes[1].grid.width,
2649					  b_w_log2);
2650	} else if (acc->awb.config.grid.x_end <=
2651		   acc->stripe.bds_out_stripes[0].width - min_overlap) {
2652		/* Enable only for leftmost stripe, disable right */
2653		acc->awb.stripes[1].rgbs_thr_b &= ~IPU3_UAPI_AWB_RGBS_THR_B_EN;
2654	} else {
2655		/* Enable for both stripes */
2656
2657		acc->awb.stripes[0].grid.width =
2658			(acc->stripe.bds_out_stripes[0].width -
2659			 acc->awb.config.grid.x_start + 1) >>
2660			acc->awb.config.grid.block_width_log2;
2661		acc->awb.stripes[1].grid.width = acc->awb.config.grid.width -
2662				acc->awb.stripes[0].grid.width;
2663
2664		b_w_log2 = acc->awb.stripes[0].grid.block_width_log2;
2665		acc->awb.stripes[0].grid.x_end =
2666			imgu_css_grid_end(acc->awb.stripes[0].grid.x_start,
2667					  acc->awb.stripes[0].grid.width,
2668					  b_w_log2);
2669
2670		acc->awb.stripes[1].grid.x_start =
2671			(acc->awb.stripes[0].grid.x_end + 1 -
2672			 acc->stripe.down_scaled_stripes[1].offset) &
2673			IPU3_UAPI_GRID_START_MASK;
2674
2675		b_w_log2 = acc->awb.stripes[1].grid.block_width_log2;
2676		acc->awb.stripes[1].grid.x_end =
2677			imgu_css_grid_end(acc->awb.stripes[1].grid.x_start,
2678					  acc->awb.stripes[1].grid.width,
2679					  b_w_log2);
2680	}
2681
2682	/*
2683	 * To reduce complexity of debubbling and loading statistics
2684	 * fix grid_height_per_slice to 1 for both stripes
2685	 */
2686	for (i = 0; i < stripes; i++)
2687		acc->awb.stripes[i].grid.height_per_slice = 1;
2688
2689	if (imgu_css_awb_ops_calc(css, pipe, &acc->awb))
2690		return -EINVAL;
2691
2692	return 0;
2693}
2694
2695/*
2696 * Fill the indicated structure in `new_binary_params' from the possible
2697 * sources based on `use_user' flag: if the flag is false, copy from
2698 * `old_binary_params', or if the flag is true, copy from `user_setting'
2699 * and return NULL (or error pointer on error).
2700 * If the flag is false and `old_binary_params' is NULL, return pointer
2701 * to the structure inside `new_binary_params'. In that case the caller
2702 * should calculate and fill the structure from scratch.
2703 */
2704static void *imgu_css_cfg_copy(struct imgu_css *css,
2705			       unsigned int pipe, bool use_user,
2706			       void *user_setting, void *old_binary_params,
2707			       void *new_binary_params,
2708			       enum imgu_abi_memories m,
2709			       struct imgu_fw_isp_parameter *par,
2710			       size_t par_size)
2711{
2712	const enum imgu_abi_param_class c = IMGU_ABI_PARAM_CLASS_PARAM;
2713	void *new_setting, *old_setting;
2714
2715	new_setting = imgu_css_fw_pipeline_params(css, pipe, c, m, par,
2716						  par_size, new_binary_params);
2717	if (!new_setting)
2718		return ERR_PTR(-EPROTO);	/* Corrupted firmware */
2719
2720	if (use_user) {
2721		/* Take new user parameters */
2722		memcpy(new_setting, user_setting, par_size);
2723	} else if (old_binary_params) {
2724		/* Take previous value */
2725		old_setting = imgu_css_fw_pipeline_params(css, pipe, c, m, par,
2726							  par_size,
2727							  old_binary_params);
2728		if (!old_setting)
2729			return ERR_PTR(-EPROTO);
2730		memcpy(new_setting, old_setting, par_size);
2731	} else {
2732		return new_setting;	/* Need to calculate */
2733	}
2734
2735	return NULL;		/* Copied from other value */
2736}
2737
2738/*
2739 * Configure VMEM0 parameters (late binding parameters).
2740 */
2741int imgu_css_cfg_vmem0(struct imgu_css *css, unsigned int pipe,
2742		       struct ipu3_uapi_flags *use,
2743		       void *vmem0, void *vmem0_old,
2744		       struct ipu3_uapi_params *user)
2745{
2746	const struct imgu_fw_info *bi =
2747		&css->fwp->binary_header[css->pipes[pipe].bindex];
2748	struct imgu_fw_param_memory_offsets *pofs = (void *)css->fwp +
2749		bi->blob.memory_offsets.offsets[IMGU_ABI_PARAM_CLASS_PARAM];
2750	struct ipu3_uapi_isp_lin_vmem_params *lin_vmem = NULL;
2751	struct ipu3_uapi_isp_tnr3_vmem_params *tnr_vmem = NULL;
2752	struct ipu3_uapi_isp_xnr3_vmem_params *xnr_vmem = NULL;
2753	const enum imgu_abi_param_class c = IMGU_ABI_PARAM_CLASS_PARAM;
2754	const enum imgu_abi_memories m = IMGU_ABI_MEM_ISP_VMEM0;
2755	unsigned int i;
2756
2757	/* Configure VMEM0 */
2758
2759	memset(vmem0, 0, bi->info.isp.sp.mem_initializers.params[c][m].size);
2760
2761	/* Configure Linearization VMEM0 parameters */
2762
2763	lin_vmem = imgu_css_cfg_copy(css, pipe, use && use->lin_vmem_params,
2764				     &user->lin_vmem_params, vmem0_old, vmem0,
2765				     m, &pofs->vmem.lin, sizeof(*lin_vmem));
2766	if (!IS_ERR_OR_NULL(lin_vmem)) {
2767		/* Generate parameter from scratch */
2768		for (i = 0; i < IPU3_UAPI_LIN_LUT_SIZE; i++) {
2769			lin_vmem->lin_lutlow_gr[i] = 32 * i;
2770			lin_vmem->lin_lutlow_r[i] = 32 * i;
2771			lin_vmem->lin_lutlow_b[i] = 32 * i;
2772			lin_vmem->lin_lutlow_gb[i] = 32 * i;
2773
2774			lin_vmem->lin_lutdif_gr[i] = 32;
2775			lin_vmem->lin_lutdif_r[i] = 32;
2776			lin_vmem->lin_lutdif_b[i] = 32;
2777			lin_vmem->lin_lutdif_gb[i] = 32;
2778		}
2779	}
2780
2781	/* Configure TNR3 VMEM parameters */
2782	if (css->pipes[pipe].pipe_id == IPU3_CSS_PIPE_ID_VIDEO) {
2783		tnr_vmem = imgu_css_cfg_copy(css, pipe,
2784					     use && use->tnr3_vmem_params,
2785					     &user->tnr3_vmem_params,
2786					     vmem0_old, vmem0, m,
2787					     &pofs->vmem.tnr3,
2788					     sizeof(*tnr_vmem));
2789		if (!IS_ERR_OR_NULL(tnr_vmem)) {
2790			/* Generate parameter from scratch */
2791			for (i = 0; i < IPU3_UAPI_ISP_TNR3_VMEM_LEN; i++)
2792				tnr_vmem->sigma[i] = 256;
2793		}
2794	}
2795	i = IPU3_UAPI_ISP_TNR3_VMEM_LEN;
2796
2797	/* Configure XNR3 VMEM parameters */
2798
2799	xnr_vmem = imgu_css_cfg_copy(css, pipe, use && use->xnr3_vmem_params,
2800				     &user->xnr3_vmem_params, vmem0_old, vmem0,
2801				     m, &pofs->vmem.xnr3, sizeof(*xnr_vmem));
2802	if (!IS_ERR_OR_NULL(xnr_vmem)) {
2803		xnr_vmem->x[i] = imgu_css_xnr3_vmem_defaults.x
2804			[i % IMGU_XNR3_VMEM_LUT_LEN];
2805		xnr_vmem->a[i] = imgu_css_xnr3_vmem_defaults.a
2806			[i % IMGU_XNR3_VMEM_LUT_LEN];
2807		xnr_vmem->b[i] = imgu_css_xnr3_vmem_defaults.b
2808			[i % IMGU_XNR3_VMEM_LUT_LEN];
2809		xnr_vmem->c[i] = imgu_css_xnr3_vmem_defaults.c
2810			[i % IMGU_XNR3_VMEM_LUT_LEN];
2811	}
2812
2813	return IS_ERR(lin_vmem) || IS_ERR(tnr_vmem) || IS_ERR(xnr_vmem) ?
2814		-EPROTO : 0;
2815}
2816
2817/*
2818 * Configure DMEM0 parameters (late binding parameters).
2819 */
2820int imgu_css_cfg_dmem0(struct imgu_css *css, unsigned int pipe,
2821		       struct ipu3_uapi_flags *use,
2822		       void *dmem0, void *dmem0_old,
2823		       struct ipu3_uapi_params *user)
2824{
2825	struct imgu_css_pipe *css_pipe = &css->pipes[pipe];
2826	const struct imgu_fw_info *bi =
2827		&css->fwp->binary_header[css_pipe->bindex];
2828	struct imgu_fw_param_memory_offsets *pofs = (void *)css->fwp +
2829		bi->blob.memory_offsets.offsets[IMGU_ABI_PARAM_CLASS_PARAM];
2830
2831	struct ipu3_uapi_isp_tnr3_params *tnr_dmem = NULL;
2832	struct ipu3_uapi_isp_xnr3_params *xnr_dmem;
2833
2834	const enum imgu_abi_param_class c = IMGU_ABI_PARAM_CLASS_PARAM;
2835	const enum imgu_abi_memories m = IMGU_ABI_MEM_ISP_DMEM0;
2836
2837	/* Configure DMEM0 */
2838
2839	memset(dmem0, 0, bi->info.isp.sp.mem_initializers.params[c][m].size);
2840
2841	/* Configure TNR3 DMEM0 parameters */
2842	if (css_pipe->pipe_id == IPU3_CSS_PIPE_ID_VIDEO) {
2843		tnr_dmem = imgu_css_cfg_copy(css, pipe,
2844					     use && use->tnr3_dmem_params,
2845					     &user->tnr3_dmem_params,
2846					     dmem0_old, dmem0, m,
2847					     &pofs->dmem.tnr3,
2848					     sizeof(*tnr_dmem));
2849		if (!IS_ERR_OR_NULL(tnr_dmem)) {
2850			/* Generate parameter from scratch */
2851			tnr_dmem->knee_y1 = 768;
2852			tnr_dmem->knee_y2 = 1280;
2853		}
2854	}
2855
2856	/* Configure XNR3 DMEM0 parameters */
2857
2858	xnr_dmem = imgu_css_cfg_copy(css, pipe, use && use->xnr3_dmem_params,
2859				     &user->xnr3_dmem_params, dmem0_old, dmem0,
2860				     m, &pofs->dmem.xnr3, sizeof(*xnr_dmem));
2861	if (!IS_ERR_OR_NULL(xnr_dmem)) {
2862		/* Generate parameter from scratch */
2863		xnr_dmem->alpha.y0 = 2047;
2864		xnr_dmem->alpha.u0 = 2047;
2865		xnr_dmem->alpha.v0 = 2047;
2866	}
2867
2868	return IS_ERR(tnr_dmem) || IS_ERR(xnr_dmem) ? -EPROTO : 0;
2869}
2870
2871/* Generate unity morphing table without morphing effect */
2872void imgu_css_cfg_gdc_table(struct imgu_abi_gdc_warp_param *gdc,
2873			    int frame_in_x, int frame_in_y,
2874			    int frame_out_x, int frame_out_y,
2875			    int env_w, int env_h)
2876{
2877	static const unsigned int FRAC_BITS = IMGU_ABI_GDC_FRAC_BITS;
2878	static const unsigned int XMEM_ALIGN = 1 << 4;
2879	const unsigned int XMEM_ALIGN_MASK = ~(XMEM_ALIGN - 1);
2880	static const unsigned int BCI_ENV = 4;
2881	static const unsigned int BYP = 2;	/* Bytes per pixel */
2882	const unsigned int OFFSET_X = 2 * IMGU_DVS_BLOCK_W + env_w + 1;
2883	const unsigned int OFFSET_Y = IMGU_DVS_BLOCK_H + env_h + 1;
2884
2885	struct imgu_abi_gdc_warp_param gdc_luma, gdc_chroma;
2886
2887	unsigned int blocks_x = ALIGN(DIV_ROUND_UP(frame_out_x,
2888						   IMGU_DVS_BLOCK_W), 2);
2889	unsigned int blocks_y = DIV_ROUND_UP(frame_out_y, IMGU_DVS_BLOCK_H);
2890	unsigned int y0, x0, x1, x, y;
2891
2892	/* Global luma settings */
2893	gdc_luma.origin_x = 0;
2894	gdc_luma.origin_y = 0;
2895	gdc_luma.p0_x = (OFFSET_X - (OFFSET_X & XMEM_ALIGN_MASK)) << FRAC_BITS;
2896	gdc_luma.p0_y = 0;
2897	gdc_luma.p1_x = gdc_luma.p0_x + (IMGU_DVS_BLOCK_W << FRAC_BITS);
2898	gdc_luma.p1_y = gdc_luma.p0_y;
2899	gdc_luma.p2_x = gdc_luma.p0_x;
2900	gdc_luma.p2_y = gdc_luma.p0_y + (IMGU_DVS_BLOCK_H << FRAC_BITS);
2901	gdc_luma.p3_x = gdc_luma.p1_x;
2902	gdc_luma.p3_y = gdc_luma.p2_y;
2903
2904	gdc_luma.in_block_width = IMGU_DVS_BLOCK_W + BCI_ENV +
2905					OFFSET_X - (OFFSET_X & XMEM_ALIGN_MASK);
2906	gdc_luma.in_block_width_a = DIV_ROUND_UP(gdc_luma.in_block_width,
2907						 IPU3_UAPI_ISP_VEC_ELEMS);
2908	gdc_luma.in_block_width_b = DIV_ROUND_UP(gdc_luma.in_block_width,
2909						 IMGU_ABI_ISP_DDR_WORD_BYTES /
2910						 BYP);
2911	gdc_luma.in_block_height = IMGU_DVS_BLOCK_H + BCI_ENV;
2912	gdc_luma.padding = 0;
2913
2914	/* Global chroma settings */
2915	gdc_chroma.origin_x = 0;
2916	gdc_chroma.origin_y = 0;
2917	gdc_chroma.p0_x = (OFFSET_X / 2 - (OFFSET_X / 2 & XMEM_ALIGN_MASK)) <<
2918			   FRAC_BITS;
2919	gdc_chroma.p0_y = 0;
2920	gdc_chroma.p1_x = gdc_chroma.p0_x + (IMGU_DVS_BLOCK_W << FRAC_BITS);
2921	gdc_chroma.p1_y = gdc_chroma.p0_y;
2922	gdc_chroma.p2_x = gdc_chroma.p0_x;
2923	gdc_chroma.p2_y = gdc_chroma.p0_y + (IMGU_DVS_BLOCK_H / 2 << FRAC_BITS);
2924	gdc_chroma.p3_x = gdc_chroma.p1_x;
2925	gdc_chroma.p3_y = gdc_chroma.p2_y;
2926
2927	gdc_chroma.in_block_width = IMGU_DVS_BLOCK_W + BCI_ENV;
2928	gdc_chroma.in_block_width_a = DIV_ROUND_UP(gdc_chroma.in_block_width,
2929						   IPU3_UAPI_ISP_VEC_ELEMS);
2930	gdc_chroma.in_block_width_b = DIV_ROUND_UP(gdc_chroma.in_block_width,
2931						   IMGU_ABI_ISP_DDR_WORD_BYTES /
2932						   BYP);
2933	gdc_chroma.in_block_height = IMGU_DVS_BLOCK_H / 2 + BCI_ENV;
2934	gdc_chroma.padding = 0;
2935
2936	/* Calculate block offsets for luma and chroma */
2937	for (y0 = 0; y0 < blocks_y; y0++) {
2938		for (x0 = 0; x0 < blocks_x / 2; x0++) {
2939			for (x1 = 0; x1 < 2; x1++) {
2940				/* Luma blocks */
2941				x = (x0 * 2 + x1) * IMGU_DVS_BLOCK_W + OFFSET_X;
2942				x &= XMEM_ALIGN_MASK;
2943				y = y0 * IMGU_DVS_BLOCK_H + OFFSET_Y;
2944				*gdc = gdc_luma;
2945				gdc->in_addr_offset =
2946					(y * frame_in_x + x) * BYP;
2947				gdc++;
2948			}
2949
2950			/* Chroma block */
2951			x = x0 * IMGU_DVS_BLOCK_W + OFFSET_X / 2;
2952			x &= XMEM_ALIGN_MASK;
2953			y = y0 * (IMGU_DVS_BLOCK_H / 2) + OFFSET_Y / 2;
2954			*gdc = gdc_chroma;
2955			gdc->in_addr_offset = (y * frame_in_x + x) * BYP;
2956			gdc++;
2957		}
2958	}
2959}
2960