summaryrefslogtreecommitdiff
path: root/drivers/gpu/drm/armada/armada_overlay.c
blob: 6743615232f5c6b4da32dd4296c01f9966ebf756 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
/*
 * Copyright (C) 2012 Russell King
 *  Rewritten from the dovefb driver, and Armada510 manuals.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */
#include <drm/drmP.h>
#include <drm/drm_plane_helper.h>
#include "armada_crtc.h"
#include "armada_drm.h"
#include "armada_fb.h"
#include "armada_gem.h"
#include "armada_hw.h"
#include <drm/armada_drm.h>
#include "armada_ioctlP.h"
#include "armada_trace.h"

struct armada_ovl_plane_properties {
	uint32_t colorkey_yr;
	uint32_t colorkey_ug;
	uint32_t colorkey_vb;
#define K2R(val) (((val) >> 0) & 0xff)
#define K2G(val) (((val) >> 8) & 0xff)
#define K2B(val) (((val) >> 16) & 0xff)
	int16_t  brightness;
	uint16_t contrast;
	uint16_t saturation;
	uint32_t colorkey_mode;
};

struct armada_ovl_plane {
	struct armada_plane base;
	struct drm_framebuffer *old_fb;
	struct {
		struct armada_plane_work work;
		struct armada_regs regs[13];
	} vbl;
	struct armada_ovl_plane_properties prop;
};
#define drm_to_armada_ovl_plane(p) \
	container_of(p, struct armada_ovl_plane, base.base)


static void
armada_ovl_update_attr(struct armada_ovl_plane_properties *prop,
	struct armada_crtc *dcrtc)
{
	writel_relaxed(prop->colorkey_yr, dcrtc->base + LCD_SPU_COLORKEY_Y);
	writel_relaxed(prop->colorkey_ug, dcrtc->base + LCD_SPU_COLORKEY_U);
	writel_relaxed(prop->colorkey_vb, dcrtc->base + LCD_SPU_COLORKEY_V);

	writel_relaxed(prop->brightness << 16 | prop->contrast,
		       dcrtc->base + LCD_SPU_CONTRAST);
	/* Docs say 15:0, but it seems to actually be 31:16 on Armada 510 */
	writel_relaxed(prop->saturation << 16,
		       dcrtc->base + LCD_SPU_SATURATION);
	writel_relaxed(0x00002000, dcrtc->base + LCD_SPU_CBSH_HUE);

	spin_lock_irq(&dcrtc->irq_lock);
	armada_updatel(prop->colorkey_mode | CFG_ALPHAM_GRA,
		     CFG_CKMODE_MASK | CFG_ALPHAM_MASK | CFG_ALPHA_MASK,
		     dcrtc->base + LCD_SPU_DMA_CTRL1);

	armada_updatel(ADV_GRACOLORKEY, 0, dcrtc->base + LCD_SPU_ADV_REG);
	spin_unlock_irq(&dcrtc->irq_lock);
}

static void armada_ovl_retire_fb(struct armada_ovl_plane *dplane,
	struct drm_framebuffer *fb)
{
	struct drm_framebuffer *old_fb;

	old_fb = xchg(&dplane->old_fb, fb);

	if (old_fb)
		armada_drm_queue_unref_work(dplane->base.base.dev, old_fb);
}

/* === Plane support === */
static void armada_ovl_plane_work(struct armada_crtc *dcrtc,
	struct armada_plane *plane, struct armada_plane_work *work)
{
	struct armada_ovl_plane *dplane = container_of(plane, struct armada_ovl_plane, base);

	trace_armada_ovl_plane_work(&dcrtc->crtc, &plane->base);

	armada_drm_crtc_update_regs(dcrtc, dplane->vbl.regs);
	armada_ovl_retire_fb(dplane, NULL);
}

static int
armada_ovl_plane_update(struct drm_plane *plane, struct drm_crtc *crtc,
	struct drm_framebuffer *fb,
	int crtc_x, int crtc_y, unsigned crtc_w, unsigned crtc_h,
	uint32_t src_x, uint32_t src_y, uint32_t src_w, uint32_t src_h)
{
	struct armada_ovl_plane *dplane = drm_to_armada_ovl_plane(plane);
	struct armada_crtc *dcrtc = drm_to_armada_crtc(crtc);
	struct drm_rect src = {
		.x1 = src_x,
		.y1 = src_y,
		.x2 = src_x + src_w,
		.y2 = src_y + src_h,
	};
	struct drm_rect dest = {
		.x1 = crtc_x,
		.y1 = crtc_y,
		.x2 = crtc_x + crtc_w,
		.y2 = crtc_y + crtc_h,
	};
	const struct drm_rect clip = {
		.x2 = crtc->mode.hdisplay,
		.y2 = crtc->mode.vdisplay,
	};
	uint32_t val, ctrl0;
	unsigned idx = 0;
	bool visible;
	int ret;

	trace_armada_ovl_plane_update(plane, crtc, fb,
				 crtc_x, crtc_y, crtc_w, crtc_h,
				 src_x, src_y, src_w, src_h);

	ret = drm_plane_helper_check_update(plane, crtc, fb, &src, &dest, &clip,
					    DRM_ROTATE_0,
					    0, INT_MAX, true, false, &visible);
	if (ret)
		return ret;

	ctrl0 = CFG_DMA_FMT(drm_fb_to_armada_fb(fb)->fmt) |
		CFG_DMA_MOD(drm_fb_to_armada_fb(fb)->mod) |
		CFG_CBSH_ENA | CFG_DMA_HSMOOTH | CFG_DMA_ENA;

	/* Does the position/size result in nothing to display? */
	if (!visible)
		ctrl0 &= ~CFG_DMA_ENA;

	if (!dcrtc->plane) {
		dcrtc->plane = plane;
		armada_ovl_update_attr(&dplane->prop, dcrtc);
	}

	/* FIXME: overlay on an interlaced display */
	/* Just updating the position/size? */
	if (plane->fb == fb && dplane->base.state.ctrl0 == ctrl0) {
		val = (drm_rect_height(&src) & 0xffff0000) |
		      drm_rect_width(&src) >> 16;
		dplane->base.state.src_hw = val;
		writel_relaxed(val, dcrtc->base + LCD_SPU_DMA_HPXL_VLN);

		val = drm_rect_height(&dest) << 16 | drm_rect_width(&dest);
		dplane->base.state.dst_hw = val;
		writel_relaxed(val, dcrtc->base + LCD_SPU_DZM_HPXL_VLN);

		val = dest.y1 << 16 | dest.x1;
		dplane->base.state.dst_yx = val;
		writel_relaxed(val, dcrtc->base + LCD_SPU_DMA_OVSA_HPXL_VLN);

		return 0;
	} else if (~dplane->base.state.ctrl0 & ctrl0 & CFG_DMA_ENA) {
		/* Power up the Y/U/V FIFOs on ENA 0->1 transitions */
		armada_updatel(0, CFG_PDWN16x66 | CFG_PDWN32x66,
			       dcrtc->base + LCD_SPU_SRAM_PARA1);
	}

	if (armada_drm_plane_work_wait(&dplane->base, HZ / 25) == 0)
		armada_drm_plane_work_cancel(dcrtc, &dplane->base);

	if (plane->fb != fb) {
		u32 addrs[3], pixel_format;
		int num_planes, hsub;

		/*
		 * Take a reference on the new framebuffer - we want to
		 * hold on to it while the hardware is displaying it.
		 */
		drm_framebuffer_reference(fb);

		if (plane->fb)
			armada_ovl_retire_fb(dplane, plane->fb);

		src_y = src.y1 >> 16;
		src_x = src.x1 >> 16;

		armada_drm_plane_calc_addrs(addrs, fb, src_x, src_y);

		pixel_format = fb->pixel_format;
		hsub = drm_format_horz_chroma_subsampling(pixel_format);
		num_planes = drm_format_num_planes(pixel_format);

		/*
		 * Annoyingly, shifting a YUYV-format image by one pixel
		 * causes the U/V planes to toggle.  Toggle the UV swap.
		 * (Unfortunately, this causes momentary colour flickering.)
		 */
		if (src_x & (hsub - 1) && num_planes == 1)
			ctrl0 ^= CFG_DMA_MOD(CFG_SWAPUV);

		armada_reg_queue_set(dplane->vbl.regs, idx, addrs[0],
				     LCD_SPU_DMA_START_ADDR_Y0);
		armada_reg_queue_set(dplane->vbl.regs, idx, addrs[1],
				     LCD_SPU_DMA_START_ADDR_U0);
		armada_reg_queue_set(dplane->vbl.regs, idx, addrs[2],
				     LCD_SPU_DMA_START_ADDR_V0);
		armada_reg_queue_set(dplane->vbl.regs, idx, addrs[0],
				     LCD_SPU_DMA_START_ADDR_Y1);
		armada_reg_queue_set(dplane->vbl.regs, idx, addrs[1],
				     LCD_SPU_DMA_START_ADDR_U1);
		armada_reg_queue_set(dplane->vbl.regs, idx, addrs[2],
				     LCD_SPU_DMA_START_ADDR_V1);

		val = fb->pitches[0] << 16 | fb->pitches[0];
		armada_reg_queue_set(dplane->vbl.regs, idx, val,
				     LCD_SPU_DMA_PITCH_YC);
		val = fb->pitches[1] << 16 | fb->pitches[2];
		armada_reg_queue_set(dplane->vbl.regs, idx, val,
				     LCD_SPU_DMA_PITCH_UV);
	}

	val = (drm_rect_height(&src) & 0xffff0000) | drm_rect_width(&src) >> 16;
	if (dplane->base.state.src_hw != val) {
		dplane->base.state.src_hw = val;
		armada_reg_queue_set(dplane->vbl.regs, idx, val,
				     LCD_SPU_DMA_HPXL_VLN);
	}

	val = drm_rect_height(&dest) << 16 | drm_rect_width(&dest);
	if (dplane->base.state.dst_hw != val) {
		dplane->base.state.dst_hw = val;
		armada_reg_queue_set(dplane->vbl.regs, idx, val,
				     LCD_SPU_DZM_HPXL_VLN);
	}

	val = dest.y1 << 16 | dest.x1;
	if (dplane->base.state.dst_yx != val) {
		dplane->base.state.dst_yx = val;
		armada_reg_queue_set(dplane->vbl.regs, idx, val,
				     LCD_SPU_DMA_OVSA_HPXL_VLN);
	}

	if (dplane->base.state.ctrl0 != ctrl0) {
		dplane->base.state.ctrl0 = ctrl0;
		armada_reg_queue_mod(dplane->vbl.regs, idx, ctrl0,
			CFG_CBSH_ENA | CFG_DMAFORMAT | CFG_DMA_FTOGGLE |
			CFG_DMA_HSMOOTH | CFG_DMA_TSTMODE |
			CFG_DMA_MOD(CFG_SWAPRB | CFG_SWAPUV | CFG_SWAPYU |
			CFG_YUV2RGB) | CFG_DMA_ENA,
			LCD_SPU_DMA_CTRL0);
	}
	if (idx) {
		armada_reg_queue_end(dplane->vbl.regs, idx);
		armada_drm_plane_work_queue(dcrtc, &dplane->base,
					    &dplane->vbl.work);
	}
	return 0;
}

static int armada_ovl_plane_disable(struct drm_plane *plane)
{
	struct armada_ovl_plane *dplane = drm_to_armada_ovl_plane(plane);
	struct drm_framebuffer *fb;
	struct armada_crtc *dcrtc;

	if (!dplane->base.base.crtc)
		return 0;

	dcrtc = drm_to_armada_crtc(dplane->base.base.crtc);

	armada_drm_plane_work_cancel(dcrtc, &dplane->base);
	armada_drm_crtc_plane_disable(dcrtc, plane);

	dcrtc->plane = NULL;
	dplane->base.state.ctrl0 = 0;

	fb = xchg(&dplane->old_fb, NULL);
	if (fb)
		drm_framebuffer_unreference(fb);

	return 0;
}

static void armada_ovl_plane_destroy(struct drm_plane *plane)
{
	struct armada_ovl_plane *dplane = drm_to_armada_ovl_plane(plane);

	drm_plane_cleanup(plane);

	kfree(dplane);
}

static int armada_ovl_plane_set_property(struct drm_plane *plane,
	struct drm_property *property, uint64_t val)
{
	struct armada_private *priv = plane->dev->dev_private;
	struct armada_ovl_plane *dplane = drm_to_armada_ovl_plane(plane);
	bool update_attr = false;

	if (property == priv->colorkey_prop) {
#define CCC(v) ((v) << 24 | (v) << 16 | (v) << 8)
		dplane->prop.colorkey_yr = CCC(K2R(val));
		dplane->prop.colorkey_ug = CCC(K2G(val));
		dplane->prop.colorkey_vb = CCC(K2B(val));
#undef CCC
		update_attr = true;
	} else if (property == priv->colorkey_min_prop) {
		dplane->prop.colorkey_yr &= ~0x00ff0000;
		dplane->prop.colorkey_yr |= K2R(val) << 16;
		dplane->prop.colorkey_ug &= ~0x00ff0000;
		dplane->prop.colorkey_ug |= K2G(val) << 16;
		dplane->prop.colorkey_vb &= ~0x00ff0000;
		dplane->prop.colorkey_vb |= K2B(val) << 16;
		update_attr = true;
	} else if (property == priv->colorkey_max_prop) {
		dplane->prop.colorkey_yr &= ~0xff000000;
		dplane->prop.colorkey_yr |= K2R(val) << 24;
		dplane->prop.colorkey_ug &= ~0xff000000;
		dplane->prop.colorkey_ug |= K2G(val) << 24;
		dplane->prop.colorkey_vb &= ~0xff000000;
		dplane->prop.colorkey_vb |= K2B(val) << 24;
		update_attr = true;
	} else if (property == priv->colorkey_val_prop) {
		dplane->prop.colorkey_yr &= ~0x0000ff00;
		dplane->prop.colorkey_yr |= K2R(val) << 8;
		dplane->prop.colorkey_ug &= ~0x0000ff00;
		dplane->prop.colorkey_ug |= K2G(val) << 8;
		dplane->prop.colorkey_vb &= ~0x0000ff00;
		dplane->prop.colorkey_vb |= K2B(val) << 8;
		update_attr = true;
	} else if (property == priv->colorkey_alpha_prop) {
		dplane->prop.colorkey_yr &= ~0x000000ff;
		dplane->prop.colorkey_yr |= K2R(val);
		dplane->prop.colorkey_ug &= ~0x000000ff;
		dplane->prop.colorkey_ug |= K2G(val);
		dplane->prop.colorkey_vb &= ~0x000000ff;
		dplane->prop.colorkey_vb |= K2B(val);
		update_attr = true;
	} else if (property == priv->colorkey_mode_prop) {
		dplane->prop.colorkey_mode &= ~CFG_CKMODE_MASK;
		dplane->prop.colorkey_mode |= CFG_CKMODE(val);
		update_attr = true;
	} else if (property == priv->brightness_prop) {
		dplane->prop.brightness = val - 256;
		update_attr = true;
	} else if (property == priv->contrast_prop) {
		dplane->prop.contrast = val;
		update_attr = true;
	} else if (property == priv->saturation_prop) {
		dplane->prop.saturation = val;
		update_attr = true;
	}

	if (update_attr && dplane->base.base.crtc)
		armada_ovl_update_attr(&dplane->prop,
				       drm_to_armada_crtc(dplane->base.base.crtc));

	return 0;
}

static const struct drm_plane_funcs armada_ovl_plane_funcs = {
	.update_plane	= armada_ovl_plane_update,
	.disable_plane	= armada_ovl_plane_disable,
	.destroy	= armada_ovl_plane_destroy,
	.set_property	= armada_ovl_plane_set_property,
};

static const uint32_t armada_ovl_formats[] = {
	DRM_FORMAT_UYVY,
	DRM_FORMAT_YUYV,
	DRM_FORMAT_YUV420,
	DRM_FORMAT_YVU420,
	DRM_FORMAT_YUV422,
	DRM_FORMAT_YVU422,
	DRM_FORMAT_VYUY,
	DRM_FORMAT_YVYU,
	DRM_FORMAT_ARGB8888,
	DRM_FORMAT_ABGR8888,
	DRM_FORMAT_XRGB8888,
	DRM_FORMAT_XBGR8888,
	DRM_FORMAT_RGB888,
	DRM_FORMAT_BGR888,
	DRM_FORMAT_ARGB1555,
	DRM_FORMAT_ABGR1555,
	DRM_FORMAT_RGB565,
	DRM_FORMAT_BGR565,
};

static struct drm_prop_enum_list armada_drm_colorkey_enum_list[] = {
	{ CKMODE_DISABLE, "disabled" },
	{ CKMODE_Y,       "Y component" },
	{ CKMODE_U,       "U component" },
	{ CKMODE_V,       "V component" },
	{ CKMODE_RGB,     "RGB" },
	{ CKMODE_R,       "R component" },
	{ CKMODE_G,       "G component" },
	{ CKMODE_B,       "B component" },
};

static int armada_overlay_create_properties(struct drm_device *dev)
{
	struct armada_private *priv = dev->dev_private;

	if (priv->colorkey_prop)
		return 0;

	priv->colorkey_prop = drm_property_create_range(dev, 0,
				"colorkey", 0, 0xffffff);
	priv->colorkey_min_prop = drm_property_create_range(dev, 0,
				"colorkey_min", 0, 0xffffff);
	priv->colorkey_max_prop = drm_property_create_range(dev, 0,
				"colorkey_max", 0, 0xffffff);
	priv->colorkey_val_prop = drm_property_create_range(dev, 0,
				"colorkey_val", 0, 0xffffff);
	priv->colorkey_alpha_prop = drm_property_create_range(dev, 0,
				"colorkey_alpha", 0, 0xffffff);
	priv->colorkey_mode_prop = drm_property_create_enum(dev, 0,
				"colorkey_mode",
				armada_drm_colorkey_enum_list,
				ARRAY_SIZE(armada_drm_colorkey_enum_list));
	priv->brightness_prop = drm_property_create_range(dev, 0,
				"brightness", 0, 256 + 255);
	priv->contrast_prop = drm_property_create_range(dev, 0,
				"contrast", 0, 0x7fff);
	priv->saturation_prop = drm_property_create_range(dev, 0,
				"saturation", 0, 0x7fff);

	if (!priv->colorkey_prop)
		return -ENOMEM;

	return 0;
}

int armada_overlay_plane_create(struct drm_device *dev, unsigned long crtcs)
{
	struct armada_private *priv = dev->dev_private;
	struct drm_mode_object *mobj;
	struct armada_ovl_plane *dplane;
	int ret;

	ret = armada_overlay_create_properties(dev);
	if (ret)
		return ret;

	dplane = kzalloc(sizeof(*dplane), GFP_KERNEL);
	if (!dplane)
		return -ENOMEM;

	ret = armada_drm_plane_init(&dplane->base);
	if (ret) {
		kfree(dplane);
		return ret;
	}

	dplane->vbl.work.fn = armada_ovl_plane_work;

	ret = drm_universal_plane_init(dev, &dplane->base.base, crtcs,
				       &armada_ovl_plane_funcs,
				       armada_ovl_formats,
				       ARRAY_SIZE(armada_ovl_formats),
				       DRM_PLANE_TYPE_OVERLAY, NULL);
	if (ret) {
		kfree(dplane);
		return ret;
	}

	dplane->prop.colorkey_yr = 0xfefefe00;
	dplane->prop.colorkey_ug = 0x01010100;
	dplane->prop.colorkey_vb = 0x01010100;
	dplane->prop.colorkey_mode = CFG_CKMODE(CKMODE_RGB);
	dplane->prop.brightness = 0;
	dplane->prop.contrast = 0x4000;
	dplane->prop.saturation = 0x4000;

	mobj = &dplane->base.base.base;
	drm_object_attach_property(mobj, priv->colorkey_prop,
				   0x0101fe);
	drm_object_attach_property(mobj, priv->colorkey_min_prop,
				   0x0101fe);
	drm_object_attach_property(mobj, priv->colorkey_max_prop,
				   0x0101fe);
	drm_object_attach_property(mobj, priv->colorkey_val_prop,
				   0x0101fe);
	drm_object_attach_property(mobj, priv->colorkey_alpha_prop,
				   0x000000);
	drm_object_attach_property(mobj, priv->colorkey_mode_prop,
				   CKMODE_RGB);
	drm_object_attach_property(mobj, priv->brightness_prop, 256);
	drm_object_attach_property(mobj, priv->contrast_prop,
				   dplane->prop.contrast);
	drm_object_attach_property(mobj, priv->saturation_prop,
				   dplane->prop.saturation);

	return 0;
}