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1/*
2 * Copyright (C) 2012 Russell King
3 * Rewritten from the dovefb driver, and Armada510 manuals.
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
8 */
9#include <drm/drmP.h>
10#include <drm/drm_atomic_helper.h>
11#include "armada_crtc.h"
12#include "armada_drm.h"
13#include "armada_fb.h"
14#include "armada_gem.h"
15#include "armada_hw.h"
16#include <drm/armada_drm.h>
17#include "armada_ioctlP.h"
18#include "armada_trace.h"
19
20struct armada_ovl_plane_properties {
21 uint32_t colorkey_yr;
22 uint32_t colorkey_ug;
23 uint32_t colorkey_vb;
24#define K2R(val) (((val) >> 0) & 0xff)
25#define K2G(val) (((val) >> 8) & 0xff)
26#define K2B(val) (((val) >> 16) & 0xff)
27 int16_t brightness;
28 uint16_t contrast;
29 uint16_t saturation;
30 uint32_t colorkey_mode;
31};
32
33struct armada_ovl_plane {
34 struct armada_plane base;
35 struct armada_ovl_plane_properties prop;
36};
37#define drm_to_armada_ovl_plane(p) \
38 container_of(p, struct armada_ovl_plane, base.base)
39
40
41static void
42armada_ovl_update_attr(struct armada_ovl_plane_properties *prop,
43 struct armada_crtc *dcrtc)
44{
45 writel_relaxed(prop->colorkey_yr, dcrtc->base + LCD_SPU_COLORKEY_Y);
46 writel_relaxed(prop->colorkey_ug, dcrtc->base + LCD_SPU_COLORKEY_U);
47 writel_relaxed(prop->colorkey_vb, dcrtc->base + LCD_SPU_COLORKEY_V);
48
49 writel_relaxed(prop->brightness << 16 | prop->contrast,
50 dcrtc->base + LCD_SPU_CONTRAST);
51 /* Docs say 15:0, but it seems to actually be 31:16 on Armada 510 */
52 writel_relaxed(prop->saturation << 16,
53 dcrtc->base + LCD_SPU_SATURATION);
54 writel_relaxed(0x00002000, dcrtc->base + LCD_SPU_CBSH_HUE);
55
56 spin_lock_irq(&dcrtc->irq_lock);
57 armada_updatel(prop->colorkey_mode | CFG_ALPHAM_GRA,
58 CFG_CKMODE_MASK | CFG_ALPHAM_MASK | CFG_ALPHA_MASK,
59 dcrtc->base + LCD_SPU_DMA_CTRL1);
60
61 armada_updatel(ADV_GRACOLORKEY, 0, dcrtc->base + LCD_SPU_ADV_REG);
62 spin_unlock_irq(&dcrtc->irq_lock);
63}
64
65/* === Plane support === */
66static void armada_ovl_plane_work(struct armada_crtc *dcrtc,
67 struct armada_plane_work *work)
68{
69 unsigned long flags;
70
71 trace_armada_ovl_plane_work(&dcrtc->crtc, work->plane);
72
73 spin_lock_irqsave(&dcrtc->irq_lock, flags);
74 armada_drm_crtc_update_regs(dcrtc, work->regs);
75 spin_unlock_irqrestore(&dcrtc->irq_lock, flags);
76}
77
78static void armada_ovl_plane_update_state(struct drm_plane_state *state,
79 struct armada_regs *regs)
80{
81 struct armada_ovl_plane *dplane = drm_to_armada_ovl_plane(state->plane);
82 struct armada_framebuffer *dfb = drm_fb_to_armada_fb(state->fb);
83 const struct drm_format_info *format;
84 unsigned int idx = 0;
85 bool fb_changed;
86 u32 val, ctrl0;
87 u16 src_x, src_y;
88
89 ctrl0 = CFG_DMA_FMT(dfb->fmt) | CFG_DMA_MOD(dfb->mod) | CFG_CBSH_ENA;
90 if (state->visible)
91 ctrl0 |= CFG_DMA_ENA;
92 if (drm_rect_width(&state->src) >> 16 != drm_rect_width(&state->dst))
93 ctrl0 |= CFG_DMA_HSMOOTH;
94
95 /*
96 * Shifting a YUV packed format image by one pixel causes the U/V
97 * planes to swap. Compensate for it by also toggling the UV swap.
98 */
99 format = dfb->fb.format;
100 if (format->num_planes == 1 && state->src.x1 >> 16 & (format->hsub - 1))
101 ctrl0 ^= CFG_DMA_MOD(CFG_SWAPUV);
102
103 if (~dplane->base.state.ctrl0 & ctrl0 & CFG_DMA_ENA) {
104 /* Power up the Y/U/V FIFOs on ENA 0->1 transitions */
105 armada_reg_queue_mod(regs, idx,
106 0, CFG_PDWN16x66 | CFG_PDWN32x66,
107 LCD_SPU_SRAM_PARA1);
108 }
109
110 fb_changed = dplane->base.base.fb != &dfb->fb ||
111 dplane->base.state.src_x != state->src.x1 >> 16 ||
112 dplane->base.state.src_y != state->src.y1 >> 16;
113
114 dplane->base.state.vsync_update = fb_changed;
115
116 /* FIXME: overlay on an interlaced display */
117 if (fb_changed) {
118 u32 addrs[3];
119
120 dplane->base.state.src_y = src_y = state->src.y1 >> 16;
121 dplane->base.state.src_x = src_x = state->src.x1 >> 16;
122
123 armada_drm_plane_calc_addrs(addrs, &dfb->fb, src_x, src_y);
124
125 armada_reg_queue_set(regs, idx, addrs[0],
126 LCD_SPU_DMA_START_ADDR_Y0);
127 armada_reg_queue_set(regs, idx, addrs[1],
128 LCD_SPU_DMA_START_ADDR_U0);
129 armada_reg_queue_set(regs, idx, addrs[2],
130 LCD_SPU_DMA_START_ADDR_V0);
131 armada_reg_queue_set(regs, idx, addrs[0],
132 LCD_SPU_DMA_START_ADDR_Y1);
133 armada_reg_queue_set(regs, idx, addrs[1],
134 LCD_SPU_DMA_START_ADDR_U1);
135 armada_reg_queue_set(regs, idx, addrs[2],
136 LCD_SPU_DMA_START_ADDR_V1);
137
138 val = dfb->fb.pitches[0] << 16 | dfb->fb.pitches[0];
139 armada_reg_queue_set(regs, idx, val,
140 LCD_SPU_DMA_PITCH_YC);
141 val = dfb->fb.pitches[1] << 16 | dfb->fb.pitches[2];
142 armada_reg_queue_set(regs, idx, val,
143 LCD_SPU_DMA_PITCH_UV);
144 }
145
146 val = (drm_rect_height(&state->src) & 0xffff0000) |
147 drm_rect_width(&state->src) >> 16;
148 if (dplane->base.state.src_hw != val) {
149 dplane->base.state.src_hw = val;
150 armada_reg_queue_set(regs, idx, val,
151 LCD_SPU_DMA_HPXL_VLN);
152 }
153
154 val = drm_rect_height(&state->dst) << 16 | drm_rect_width(&state->dst);
155 if (dplane->base.state.dst_hw != val) {
156 dplane->base.state.dst_hw = val;
157 armada_reg_queue_set(regs, idx, val,
158 LCD_SPU_DZM_HPXL_VLN);
159 }
160
161 val = state->dst.y1 << 16 | state->dst.x1;
162 if (dplane->base.state.dst_yx != val) {
163 dplane->base.state.dst_yx = val;
164 armada_reg_queue_set(regs, idx, val,
165 LCD_SPU_DMA_OVSA_HPXL_VLN);
166 }
167
168 if (dplane->base.state.ctrl0 != ctrl0) {
169 dplane->base.state.ctrl0 = ctrl0;
170 armada_reg_queue_mod(regs, idx, ctrl0,
171 CFG_CBSH_ENA | CFG_DMAFORMAT | CFG_DMA_FTOGGLE |
172 CFG_DMA_HSMOOTH | CFG_DMA_TSTMODE |
173 CFG_DMA_MOD(CFG_SWAPRB | CFG_SWAPUV | CFG_SWAPYU |
174 CFG_YUV2RGB) | CFG_DMA_ENA,
175 LCD_SPU_DMA_CTRL0);
176 dplane->base.state.vsync_update = true;
177 }
178
179 dplane->base.state.changed = idx != 0;
180
181 armada_reg_queue_end(regs, idx);
182}
183
184static int
185armada_ovl_plane_update(struct drm_plane *plane, struct drm_crtc *crtc,
186 struct drm_framebuffer *fb,
187 int crtc_x, int crtc_y, unsigned crtc_w, unsigned crtc_h,
188 uint32_t src_x, uint32_t src_y, uint32_t src_w, uint32_t src_h,
189 struct drm_modeset_acquire_ctx *ctx)
190{
191 struct armada_ovl_plane *dplane = drm_to_armada_ovl_plane(plane);
192 struct armada_crtc *dcrtc = drm_to_armada_crtc(crtc);
193 struct armada_plane_work *work;
194 struct drm_plane_state state = {
195 .plane = plane,
196 .crtc = crtc,
197 .fb = fb,
198 .src_x = src_x,
199 .src_y = src_y,
200 .src_w = src_w,
201 .src_h = src_h,
202 .crtc_x = crtc_x,
203 .crtc_y = crtc_y,
204 .crtc_w = crtc_w,
205 .crtc_h = crtc_h,
206 .rotation = DRM_MODE_ROTATE_0,
207 };
208 struct drm_crtc_state crtc_state = {
209 .crtc = crtc,
210 .enable = crtc->enabled,
211 .mode = crtc->mode,
212 };
213 int ret;
214
215 trace_armada_ovl_plane_update(plane, crtc, fb,
216 crtc_x, crtc_y, crtc_w, crtc_h,
217 src_x, src_y, src_w, src_h);
218
219 ret = drm_atomic_helper_check_plane_state(&state, &crtc_state, 0,
220 INT_MAX, true, false);
221 if (ret)
222 return ret;
223
224 work = &dplane->base.works[dplane->base.next_work];
225
226 if (plane->fb != fb) {
227 /*
228 * Take a reference on the new framebuffer - we want to
229 * hold on to it while the hardware is displaying it.
230 */
231 drm_framebuffer_reference(fb);
232
233 work->old_fb = plane->fb;
234 } else {
235 work->old_fb = NULL;
236 }
237
238 armada_ovl_plane_update_state(&state, work->regs);
239
240 if (!dplane->base.state.changed)
241 return 0;
242
243 /* Wait for pending work to complete */
244 if (armada_drm_plane_work_wait(&dplane->base, HZ / 25) == 0)
245 armada_drm_plane_work_cancel(dcrtc, &dplane->base);
246
247 /* Just updating the position/size? */
248 if (!dplane->base.state.vsync_update) {
249 armada_ovl_plane_work(dcrtc, work);
250 return 0;
251 }
252
253 if (!dcrtc->plane) {
254 dcrtc->plane = plane;
255 armada_ovl_update_attr(&dplane->prop, dcrtc);
256 }
257
258 /* Queue it for update on the next interrupt if we are enabled */
259 ret = armada_drm_plane_work_queue(dcrtc, work);
260 if (ret)
261 DRM_ERROR("failed to queue plane work: %d\n", ret);
262
263 dplane->base.next_work = !dplane->base.next_work;
264
265 return 0;
266}
267
268static void armada_ovl_plane_destroy(struct drm_plane *plane)
269{
270 struct armada_ovl_plane *dplane = drm_to_armada_ovl_plane(plane);
271
272 drm_plane_cleanup(plane);
273
274 kfree(dplane);
275}
276
277static int armada_ovl_plane_set_property(struct drm_plane *plane,
278 struct drm_property *property, uint64_t val)
279{
280 struct armada_private *priv = plane->dev->dev_private;
281 struct armada_ovl_plane *dplane = drm_to_armada_ovl_plane(plane);
282 bool update_attr = false;
283
284 if (property == priv->colorkey_prop) {
285#define CCC(v) ((v) << 24 | (v) << 16 | (v) << 8)
286 dplane->prop.colorkey_yr = CCC(K2R(val));
287 dplane->prop.colorkey_ug = CCC(K2G(val));
288 dplane->prop.colorkey_vb = CCC(K2B(val));
289#undef CCC
290 update_attr = true;
291 } else if (property == priv->colorkey_min_prop) {
292 dplane->prop.colorkey_yr &= ~0x00ff0000;
293 dplane->prop.colorkey_yr |= K2R(val) << 16;
294 dplane->prop.colorkey_ug &= ~0x00ff0000;
295 dplane->prop.colorkey_ug |= K2G(val) << 16;
296 dplane->prop.colorkey_vb &= ~0x00ff0000;
297 dplane->prop.colorkey_vb |= K2B(val) << 16;
298 update_attr = true;
299 } else if (property == priv->colorkey_max_prop) {
300 dplane->prop.colorkey_yr &= ~0xff000000;
301 dplane->prop.colorkey_yr |= K2R(val) << 24;
302 dplane->prop.colorkey_ug &= ~0xff000000;
303 dplane->prop.colorkey_ug |= K2G(val) << 24;
304 dplane->prop.colorkey_vb &= ~0xff000000;
305 dplane->prop.colorkey_vb |= K2B(val) << 24;
306 update_attr = true;
307 } else if (property == priv->colorkey_val_prop) {
308 dplane->prop.colorkey_yr &= ~0x0000ff00;
309 dplane->prop.colorkey_yr |= K2R(val) << 8;
310 dplane->prop.colorkey_ug &= ~0x0000ff00;
311 dplane->prop.colorkey_ug |= K2G(val) << 8;
312 dplane->prop.colorkey_vb &= ~0x0000ff00;
313 dplane->prop.colorkey_vb |= K2B(val) << 8;
314 update_attr = true;
315 } else if (property == priv->colorkey_alpha_prop) {
316 dplane->prop.colorkey_yr &= ~0x000000ff;
317 dplane->prop.colorkey_yr |= K2R(val);
318 dplane->prop.colorkey_ug &= ~0x000000ff;
319 dplane->prop.colorkey_ug |= K2G(val);
320 dplane->prop.colorkey_vb &= ~0x000000ff;
321 dplane->prop.colorkey_vb |= K2B(val);
322 update_attr = true;
323 } else if (property == priv->colorkey_mode_prop) {
324 dplane->prop.colorkey_mode &= ~CFG_CKMODE_MASK;
325 dplane->prop.colorkey_mode |= CFG_CKMODE(val);
326 update_attr = true;
327 } else if (property == priv->brightness_prop) {
328 dplane->prop.brightness = val - 256;
329 update_attr = true;
330 } else if (property == priv->contrast_prop) {
331 dplane->prop.contrast = val;
332 update_attr = true;
333 } else if (property == priv->saturation_prop) {
334 dplane->prop.saturation = val;
335 update_attr = true;
336 }
337
338 if (update_attr && dplane->base.base.crtc)
339 armada_ovl_update_attr(&dplane->prop,
340 drm_to_armada_crtc(dplane->base.base.crtc));
341
342 return 0;
343}
344
345static const struct drm_plane_funcs armada_ovl_plane_funcs = {
346 .update_plane = armada_ovl_plane_update,
347 .disable_plane = armada_drm_plane_disable,
348 .destroy = armada_ovl_plane_destroy,
349 .set_property = armada_ovl_plane_set_property,
350};
351
352static const uint32_t armada_ovl_formats[] = {
353 DRM_FORMAT_UYVY,
354 DRM_FORMAT_YUYV,
355 DRM_FORMAT_YUV420,
356 DRM_FORMAT_YVU420,
357 DRM_FORMAT_YUV422,
358 DRM_FORMAT_YVU422,
359 DRM_FORMAT_VYUY,
360 DRM_FORMAT_YVYU,
361 DRM_FORMAT_ARGB8888,
362 DRM_FORMAT_ABGR8888,
363 DRM_FORMAT_XRGB8888,
364 DRM_FORMAT_XBGR8888,
365 DRM_FORMAT_RGB888,
366 DRM_FORMAT_BGR888,
367 DRM_FORMAT_ARGB1555,
368 DRM_FORMAT_ABGR1555,
369 DRM_FORMAT_RGB565,
370 DRM_FORMAT_BGR565,
371};
372
373static const struct drm_prop_enum_list armada_drm_colorkey_enum_list[] = {
374 { CKMODE_DISABLE, "disabled" },
375 { CKMODE_Y, "Y component" },
376 { CKMODE_U, "U component" },
377 { CKMODE_V, "V component" },
378 { CKMODE_RGB, "RGB" },
379 { CKMODE_R, "R component" },
380 { CKMODE_G, "G component" },
381 { CKMODE_B, "B component" },
382};
383
384static int armada_overlay_create_properties(struct drm_device *dev)
385{
386 struct armada_private *priv = dev->dev_private;
387
388 if (priv->colorkey_prop)
389 return 0;
390
391 priv->colorkey_prop = drm_property_create_range(dev, 0,
392 "colorkey", 0, 0xffffff);
393 priv->colorkey_min_prop = drm_property_create_range(dev, 0,
394 "colorkey_min", 0, 0xffffff);
395 priv->colorkey_max_prop = drm_property_create_range(dev, 0,
396 "colorkey_max", 0, 0xffffff);
397 priv->colorkey_val_prop = drm_property_create_range(dev, 0,
398 "colorkey_val", 0, 0xffffff);
399 priv->colorkey_alpha_prop = drm_property_create_range(dev, 0,
400 "colorkey_alpha", 0, 0xffffff);
401 priv->colorkey_mode_prop = drm_property_create_enum(dev, 0,
402 "colorkey_mode",
403 armada_drm_colorkey_enum_list,
404 ARRAY_SIZE(armada_drm_colorkey_enum_list));
405 priv->brightness_prop = drm_property_create_range(dev, 0,
406 "brightness", 0, 256 + 255);
407 priv->contrast_prop = drm_property_create_range(dev, 0,
408 "contrast", 0, 0x7fff);
409 priv->saturation_prop = drm_property_create_range(dev, 0,
410 "saturation", 0, 0x7fff);
411
412 if (!priv->colorkey_prop)
413 return -ENOMEM;
414
415 return 0;
416}
417
418int armada_overlay_plane_create(struct drm_device *dev, unsigned long crtcs)
419{
420 struct armada_private *priv = dev->dev_private;
421 struct drm_mode_object *mobj;
422 struct armada_ovl_plane *dplane;
423 int ret;
424
425 ret = armada_overlay_create_properties(dev);
426 if (ret)
427 return ret;
428
429 dplane = kzalloc(sizeof(*dplane), GFP_KERNEL);
430 if (!dplane)
431 return -ENOMEM;
432
433 ret = armada_drm_plane_init(&dplane->base);
434 if (ret) {
435 kfree(dplane);
436 return ret;
437 }
438
439 dplane->base.works[0].fn = armada_ovl_plane_work;
440 dplane->base.works[1].fn = armada_ovl_plane_work;
441
442 ret = drm_universal_plane_init(dev, &dplane->base.base, crtcs,
443 &armada_ovl_plane_funcs,
444 armada_ovl_formats,
445 ARRAY_SIZE(armada_ovl_formats),
446 NULL,
447 DRM_PLANE_TYPE_OVERLAY, NULL);
448 if (ret) {
449 kfree(dplane);
450 return ret;
451 }
452
453 dplane->prop.colorkey_yr = 0xfefefe00;
454 dplane->prop.colorkey_ug = 0x01010100;
455 dplane->prop.colorkey_vb = 0x01010100;
456 dplane->prop.colorkey_mode = CFG_CKMODE(CKMODE_RGB);
457 dplane->prop.brightness = 0;
458 dplane->prop.contrast = 0x4000;
459 dplane->prop.saturation = 0x4000;
460
461 mobj = &dplane->base.base.base;
462 drm_object_attach_property(mobj, priv->colorkey_prop,
463 0x0101fe);
464 drm_object_attach_property(mobj, priv->colorkey_min_prop,
465 0x0101fe);
466 drm_object_attach_property(mobj, priv->colorkey_max_prop,
467 0x0101fe);
468 drm_object_attach_property(mobj, priv->colorkey_val_prop,
469 0x0101fe);
470 drm_object_attach_property(mobj, priv->colorkey_alpha_prop,
471 0x000000);
472 drm_object_attach_property(mobj, priv->colorkey_mode_prop,
473 CKMODE_RGB);
474 drm_object_attach_property(mobj, priv->brightness_prop, 256);
475 drm_object_attach_property(mobj, priv->contrast_prop,
476 dplane->prop.contrast);
477 drm_object_attach_property(mobj, priv->saturation_prop,
478 dplane->prop.saturation);
479
480 return 0;
481}