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2024-01-04 1543e317f1da31b75942316931e8f491a8920811 
 kernel/drivers/gpu/ipu-v3/ipu-ic.c
....@@ -1,13 +1,7 @@
1
+// SPDX-License-Identifier: GPL-2.0-or-later
12 /*
23  * Copyright (C) 2012-2014 Mentor Graphics Inc.
34  * Copyright 2005-2012 Freescale Semiconductor, Inc. All Rights Reserved.
4
- *
5
- * The code contained herein is licensed under the GNU General Public
6
- * License. You may obtain a copy of the GNU General Public License
7
- * Version 2 or later at the following locations:
8
- *
9
- * http://www.opensource.org/licenses/gpl-license.html
10
- * http://www.gnu.org/copyleft/gpl.html
115  */
126 
137 #include <linux/types.h>
....@@ -146,8 +140,10 @@
146140 	const struct ic_task_regoffs *reg;
147141 	const struct ic_task_bitfields *bit;
148142 
149
-	enum ipu_color_space in_cs, g_in_cs;
150
-	enum ipu_color_space out_cs;
143
+	struct ipu_ic_colorspace in_cs;
144
+	struct ipu_ic_colorspace g_in_cs;
145
+	struct ipu_ic_colorspace out_cs;
146
+
151147 	bool graphics;
152148 	bool rotation;
153149 	bool in_use;
....@@ -175,60 +171,11 @@
175171 	writel(value, ic->priv->base + offset);
176172 }
177173 
178
-struct ic_csc_params {
179
-	s16 coeff[3][3];	/* signed 9-bit integer coefficients */
180
-	s16 offset[3];		/* signed 11+2-bit fixed point offset */
181
-	u8 scale:2;		/* scale coefficients * 2^(scale-1) */
182
-	bool sat:1;		/* saturate to (16, 235(Y) / 240(U, V)) */
183
-};
184
-
185
-/*
186
- * Y = R *  .299 + G *  .587 + B *  .114;
187
- * U = R * -.169 + G * -.332 + B *  .500 + 128.;
188
- * V = R *  .500 + G * -.419 + B * -.0813 + 128.;
189
- */
190
-static const struct ic_csc_params ic_csc_rgb2ycbcr = {
191
-	.coeff = {
192
-		{ 77, 150, 29 },
193
-		{ 469, 427, 128 },
194
-		{ 128, 405, 491 },
195
-	},
196
-	.offset = { 0, 512, 512 },
197
-	.scale = 1,
198
-};
199
-
200
-/* transparent RGB->RGB matrix for graphics combining */
201
-static const struct ic_csc_params ic_csc_rgb2rgb = {
202
-	.coeff = {
203
-		{ 128, 0, 0 },
204
-		{ 0, 128, 0 },
205
-		{ 0, 0, 128 },
206
-	},
207
-	.scale = 2,
208
-};
209
-
210
-/*
211
- * R = (1.164 * (Y - 16)) + (1.596 * (Cr - 128));
212
- * G = (1.164 * (Y - 16)) - (0.392 * (Cb - 128)) - (0.813 * (Cr - 128));
213
- * B = (1.164 * (Y - 16)) + (2.017 * (Cb - 128);
214
- */
215
-static const struct ic_csc_params ic_csc_ycbcr2rgb = {
216
-	.coeff = {
217
-		{ 149, 0, 204 },
218
-		{ 149, 462, 408 },
219
-		{ 149, 255, 0 },
220
-	},
221
-	.offset = { -446, 266, -554 },
222
-	.scale = 2,
223
-};
224
-
225174 static int init_csc(struct ipu_ic *ic,
226
-		    enum ipu_color_space inf,
227
-		    enum ipu_color_space outf,
175
+		    const struct ipu_ic_csc *csc,
228176 		    int csc_index)
229177 {
230178 	struct ipu_ic_priv *priv = ic->priv;
231
-	const struct ic_csc_params *params;
232179 	u32 __iomem *base;
233180 	const u16 (*c)[3];
234181 	const u16 *a;
....@@ -237,27 +184,16 @@
237184 	base = (u32 __iomem *)
238185 		(priv->tpmem_base + ic->reg->tpmem_csc[csc_index]);
239186 
240
-	if (inf == IPUV3_COLORSPACE_YUV && outf == IPUV3_COLORSPACE_RGB)
241
-		params = &ic_csc_ycbcr2rgb;
242
-	else if (inf == IPUV3_COLORSPACE_RGB && outf == IPUV3_COLORSPACE_YUV)
243
-		params = &ic_csc_rgb2ycbcr;
244
-	else if (inf == IPUV3_COLORSPACE_RGB && outf == IPUV3_COLORSPACE_RGB)
245
-		params = &ic_csc_rgb2rgb;
246
-	else {
247
-		dev_err(priv->ipu->dev, "Unsupported color space conversion\n");
248
-		return -EINVAL;
249
-	}
250
-
251187 	/* Cast to unsigned */
252
-	c = (const u16 (*)[3])params->coeff;
253
-	a = (const u16 *)params->offset;
188
+	c = (const u16 (*)[3])csc->params.coeff;
189
+	a = (const u16 *)csc->params.offset;
254190 
255191 	param = ((a[0] & 0x1f) << 27) | ((c[0][0] & 0x1ff) << 18) |
256192 		((c[1][1] & 0x1ff) << 9) | (c[2][2] & 0x1ff);
257193 	writel(param, base++);
258194 
259
-	param = ((a[0] & 0x1fe0) >> 5) | (params->scale << 8) |
260
-		(params->sat << 10);
195
+	param = ((a[0] & 0x1fe0) >> 5) | (csc->params.scale << 8) |
196
+		(csc->params.sat << 10);
261197 	writel(param, base++);
262198 
263199 	param = ((a[1] & 0x1f) << 27) | ((c[0][1] & 0x1ff) << 18) |
....@@ -344,14 +280,14 @@
344280 	if (ic->rotation)
345281 		ic_conf |= ic->bit->ic_conf_rot_en;
346282 
347
-	if (ic->in_cs != ic->out_cs)
283
+	if (ic->in_cs.cs != ic->out_cs.cs)
348284 		ic_conf |= ic->bit->ic_conf_csc1_en;
349285 
350286 	if (ic->graphics) {
351287 		ic_conf |= ic->bit->ic_conf_cmb_en;
352288 		ic_conf |= ic->bit->ic_conf_csc1_en;
353289 
354
-		if (ic->g_in_cs != ic->out_cs)
290
+		if (ic->g_in_cs.cs != ic->out_cs.cs)
355291 			ic_conf |= ic->bit->ic_conf_csc2_en;
356292 	}
357293 
....@@ -386,11 +322,12 @@
386322 EXPORT_SYMBOL_GPL(ipu_ic_task_disable);
387323 
388324 int ipu_ic_task_graphics_init(struct ipu_ic *ic,
389
-			      enum ipu_color_space in_g_cs,
325
+			      const struct ipu_ic_colorspace *g_in_cs,
390326 			      bool galpha_en, u32 galpha,
391327 			      bool colorkey_en, u32 colorkey)
392328 {
393329 	struct ipu_ic_priv *priv = ic->priv;
330
+	struct ipu_ic_csc csc2;
394331 	unsigned long flags;
395332 	u32 reg, ic_conf;
396333 	int ret = 0;
....@@ -403,20 +340,35 @@
403340 	ic_conf = ipu_ic_read(ic, IC_CONF);
404341 
405342 	if (!(ic_conf & ic->bit->ic_conf_csc1_en)) {
343
+		struct ipu_ic_csc csc1;
344
+
345
+		ret = ipu_ic_calc_csc(&csc1,
346
+				      V4L2_YCBCR_ENC_601,
347
+				      V4L2_QUANTIZATION_FULL_RANGE,
348
+				      IPUV3_COLORSPACE_RGB,
349
+				      V4L2_YCBCR_ENC_601,
350
+				      V4L2_QUANTIZATION_FULL_RANGE,
351
+				      IPUV3_COLORSPACE_RGB);
352
+		if (ret)
353
+			goto unlock;
354
+
406355 		/* need transparent CSC1 conversion */
407
-		ret = init_csc(ic, IPUV3_COLORSPACE_RGB,
408
-			       IPUV3_COLORSPACE_RGB, 0);
356
+		ret = init_csc(ic, &csc1, 0);
409357 		if (ret)
410358 			goto unlock;
411359 	}
412360 
413
-	ic->g_in_cs = in_g_cs;
361
+	ic->g_in_cs = *g_in_cs;
362
+	csc2.in_cs = ic->g_in_cs;
363
+	csc2.out_cs = ic->out_cs;
414364 
415
-	if (ic->g_in_cs != ic->out_cs) {
416
-		ret = init_csc(ic, ic->g_in_cs, ic->out_cs, 1);
417
-		if (ret)
418
-			goto unlock;
419
-	}
365
+	ret = __ipu_ic_calc_csc(&csc2);
366
+	if (ret)
367
+		goto unlock;
368
+
369
+	ret = init_csc(ic, &csc2, 1);
370
+	if (ret)
371
+		goto unlock;
420372 
421373 	if (galpha_en) {
422374 		ic_conf |= IC_CONF_IC_GLB_LOC_A;
....@@ -442,51 +394,59 @@
442394 }
443395 EXPORT_SYMBOL_GPL(ipu_ic_task_graphics_init);
444396 
445
-int ipu_ic_task_init(struct ipu_ic *ic,
446
-		     int in_width, int in_height,
447
-		     int out_width, int out_height,
448
-		     enum ipu_color_space in_cs,
449
-		     enum ipu_color_space out_cs)
397
+int ipu_ic_task_init_rsc(struct ipu_ic *ic,
398
+			 const struct ipu_ic_csc *csc,
399
+			 int in_width, int in_height,
400
+			 int out_width, int out_height,
401
+			 u32 rsc)
450402 {
451403 	struct ipu_ic_priv *priv = ic->priv;
452
-	u32 reg, downsize_coeff, resize_coeff;
404
+	u32 downsize_coeff, resize_coeff;
453405 	unsigned long flags;
454406 	int ret = 0;
455407 
456
-	/* Setup vertical resizing */
457
-	ret = calc_resize_coeffs(ic, in_height, out_height,
458
-				 &resize_coeff, &downsize_coeff);
459
-	if (ret)
460
-		return ret;
408
+	if (!rsc) {
409
+		/* Setup vertical resizing */
461410 
462
-	reg = (downsize_coeff << 30) | (resize_coeff << 16);
411
+		ret = calc_resize_coeffs(ic, in_height, out_height,
412
+					 &resize_coeff, &downsize_coeff);
413
+		if (ret)
414
+			return ret;
463415 
464
-	/* Setup horizontal resizing */
465
-	ret = calc_resize_coeffs(ic, in_width, out_width,
466
-				 &resize_coeff, &downsize_coeff);
467
-	if (ret)
468
-		return ret;
416
+		rsc = (downsize_coeff << 30) | (resize_coeff << 16);
469417 
470
-	reg |= (downsize_coeff << 14) | resize_coeff;
418
+		/* Setup horizontal resizing */
419
+		ret = calc_resize_coeffs(ic, in_width, out_width,
420
+					 &resize_coeff, &downsize_coeff);
421
+		if (ret)
422
+			return ret;
423
+
424
+		rsc |= (downsize_coeff << 14) | resize_coeff;
425
+	}
471426 
472427 	spin_lock_irqsave(&priv->lock, flags);
473428 
474
-	ipu_ic_write(ic, reg, ic->reg->rsc);
429
+	ipu_ic_write(ic, rsc, ic->reg->rsc);
475430 
476431 	/* Setup color space conversion */
477
-	ic->in_cs = in_cs;
478
-	ic->out_cs = out_cs;
432
+	ic->in_cs = csc->in_cs;
433
+	ic->out_cs = csc->out_cs;
479434 
480
-	if (ic->in_cs != ic->out_cs) {
481
-		ret = init_csc(ic, ic->in_cs, ic->out_cs, 0);
482
-		if (ret)
483
-			goto unlock;
484
-	}
435
+	ret = init_csc(ic, csc, 0);
485436 
486
-unlock:
487437 	spin_unlock_irqrestore(&priv->lock, flags);
488438 	return ret;
489439 }
440
+
441
+int ipu_ic_task_init(struct ipu_ic *ic,
442
+		     const struct ipu_ic_csc *csc,
443
+		     int in_width, int in_height,
444
+		     int out_width, int out_height)
445
+{
446
+	return ipu_ic_task_init_rsc(ic, csc,
447
+				    in_width, in_height,
448
+				    out_width, out_height, 0);
449
+}
490450 EXPORT_SYMBOL_GPL(ipu_ic_task_init);
491451 
492452 int ipu_ic_task_idma_init(struct ipu_ic *ic, struct ipuv3_channel *channel,