1 // SPDX-License-Identifier: GPL-2.0-or-later
21 static void sun8i_vi_layer_update_alpha(struct sun8i_mixer *mixer, int channel,  in sun8i_vi_layer_update_alpha()  argument
26 	ch_base = sun8i_channel_base(mixer, channel);  in sun8i_vi_layer_update_alpha()
28 	if (mixer->cfg->is_de3) {  in sun8i_vi_layer_update_alpha()
32 			(plane->state->alpha >> 8);  in sun8i_vi_layer_update_alpha()
34 		val |= (plane->state->alpha == DRM_BLEND_ALPHA_OPAQUE) ?  in sun8i_vi_layer_update_alpha()
38 		regmap_update_bits(mixer->engine.regs,  in sun8i_vi_layer_update_alpha()
42 	} else if (mixer->cfg->vi_num == 1) {  in sun8i_vi_layer_update_alpha()
43 		regmap_update_bits(mixer->engine.regs,  in sun8i_vi_layer_update_alpha()
47 					(plane->state->alpha >> 8));  in sun8i_vi_layer_update_alpha()
51 static int sun8i_vi_layer_update_coord(struct sun8i_mixer *mixer, int channel,  in sun8i_vi_layer_update_coord()  argument
55 	struct drm_plane_state *state = plane->state;  in sun8i_vi_layer_update_coord()
56 	const struct drm_format_info *format = state->fb->format;  in sun8i_vi_layer_update_coord()
65 	DRM_DEBUG_DRIVER("Updating VI channel %d overlay %d\n",  in sun8i_vi_layer_update_coord()
66 			 channel, overlay);  in sun8i_vi_layer_update_coord()
69 	ch_base = sun8i_channel_base(mixer, channel);  in sun8i_vi_layer_update_coord()
71 	src_w = drm_rect_width(&state->src) >> 16;  in sun8i_vi_layer_update_coord()
72 	src_h = drm_rect_height(&state->src) >> 16;  in sun8i_vi_layer_update_coord()
73 	dst_w = drm_rect_width(&state->dst);  in sun8i_vi_layer_update_coord()
74 	dst_h = drm_rect_height(&state->dst);  in sun8i_vi_layer_update_coord()
76 	hphase = state->src.x1 & 0xffff;  in sun8i_vi_layer_update_coord()
77 	vphase = state->src.y1 & 0xffff;  in sun8i_vi_layer_update_coord()
80 	if (format->hsub > 1) {  in sun8i_vi_layer_update_coord()
83 		mask = format->hsub - 1;  in sun8i_vi_layer_update_coord()
84 		remainder = (state->src.x1 >> 16) & mask;  in sun8i_vi_layer_update_coord()
86 		hphase += remainder << 16;  in sun8i_vi_layer_update_coord()
89 	if (format->vsub > 1) {  in sun8i_vi_layer_update_coord()
92 		mask = format->vsub - 1;  in sun8i_vi_layer_update_coord()
93 		remainder = (state->src.y1 >> 16) & mask;  in sun8i_vi_layer_update_coord()
95 		vphase += remainder << 16;  in sun8i_vi_layer_update_coord()
103 			 (state->src.x1 >> 16) & ~(format->hsub - 1),  in sun8i_vi_layer_update_coord()
104 			 (state->src.y1 >> 16) & ~(format->vsub - 1));  in sun8i_vi_layer_update_coord()
106 	regmap_write(mixer->engine.regs,  in sun8i_vi_layer_update_coord()
109 	regmap_write(mixer->engine.regs,  in sun8i_vi_layer_update_coord()
117 	subsampled = format->hsub > 1 || format->vsub > 1;  in sun8i_vi_layer_update_coord()
127 		mode = &plane->state->crtc->state->mode;  in sun8i_vi_layer_update_coord()
128 		fps = (mode->clock * 1000) / (mode->vtotal * mode->htotal);  in sun8i_vi_layer_update_coord()
129 		ability = clk_get_rate(mixer->mod_clk);  in sun8i_vi_layer_update_coord()
132 		do_div(ability, mode->vdisplay * fps * max(src_w, dst_w));  in sun8i_vi_layer_update_coord()
144 		scanline = subsampled ? mixer->cfg->scanline_yuv : 2048;  in sun8i_vi_layer_update_coord()
153 		hscale = (src_w << 16) / dst_w;  in sun8i_vi_layer_update_coord()
154 		vscale = (src_h << 16) / dst_h;  in sun8i_vi_layer_update_coord()
156 		sun8i_vi_scaler_setup(mixer, channel, src_w, src_h, dst_w,  in sun8i_vi_layer_update_coord()
159 		sun8i_vi_scaler_enable(mixer, channel, true);  in sun8i_vi_layer_update_coord()
162 		sun8i_vi_scaler_enable(mixer, channel, false);  in sun8i_vi_layer_update_coord()
165 	regmap_write(mixer->engine.regs,  in sun8i_vi_layer_update_coord()
169 	regmap_write(mixer->engine.regs,  in sun8i_vi_layer_update_coord()
173 	regmap_write(mixer->engine.regs,  in sun8i_vi_layer_update_coord()
177 	regmap_write(mixer->engine.regs,  in sun8i_vi_layer_update_coord()
184 			 state->dst.x1, state->dst.y1);  in sun8i_vi_layer_update_coord()
186 	regmap_write(mixer->engine.regs,  in sun8i_vi_layer_update_coord()
188 		     SUN8I_MIXER_COORD(state->dst.x1, state->dst.y1));  in sun8i_vi_layer_update_coord()
189 	regmap_write(mixer->engine.regs,  in sun8i_vi_layer_update_coord()
198 	if (!format->is_yuv)  in sun8i_vi_layer_get_csc_mode()
201 	switch (format->format) {  in sun8i_vi_layer_get_csc_mode()
212 static int sun8i_vi_layer_update_formats(struct sun8i_mixer *mixer, int channel,  in sun8i_vi_layer_update_formats()  argument
215 	struct drm_plane_state *state = plane->state;  in sun8i_vi_layer_update_formats()
220 	ch_base = sun8i_channel_base(mixer, channel);  in sun8i_vi_layer_update_formats()
222 	fmt = state->fb->format;  in sun8i_vi_layer_update_formats()
223 	ret = sun8i_mixer_drm_format_to_hw(fmt->format, &hw_fmt);  in sun8i_vi_layer_update_formats()
230 	regmap_update_bits(mixer->engine.regs,  in sun8i_vi_layer_update_formats()
236 		sun8i_csc_set_ccsc_coefficients(mixer, channel, csc_mode,  in sun8i_vi_layer_update_formats()
237 						state->color_encoding,  in sun8i_vi_layer_update_formats()
238 						state->color_range);  in sun8i_vi_layer_update_formats()
239 		sun8i_csc_enable_ccsc(mixer, channel, true);  in sun8i_vi_layer_update_formats()
241 		sun8i_csc_enable_ccsc(mixer, channel, false);  in sun8i_vi_layer_update_formats()
244 	if (!fmt->is_yuv)  in sun8i_vi_layer_update_formats()
249 	regmap_update_bits(mixer->engine.regs,  in sun8i_vi_layer_update_formats()
256 static int sun8i_vi_layer_update_buffer(struct sun8i_mixer *mixer, int channel,  in sun8i_vi_layer_update_buffer()  argument
259 	struct drm_plane_state *state = plane->state;  in sun8i_vi_layer_update_buffer()
260 	struct drm_framebuffer *fb = state->fb;  in sun8i_vi_layer_update_buffer()
261 	const struct drm_format_info *format = fb->format;  in sun8i_vi_layer_update_buffer()
268 	ch_base = sun8i_channel_base(mixer, channel);  in sun8i_vi_layer_update_buffer()
271 	src_x = (state->src.x1 >> 16) & ~(format->hsub - 1);  in sun8i_vi_layer_update_buffer()
272 	src_y = (state->src.y1 >> 16) & ~(format->vsub - 1);  in sun8i_vi_layer_update_buffer()
274 	for (i = 0; i < format->num_planes; i++) {  in sun8i_vi_layer_update_buffer()
278 		DRM_DEBUG_DRIVER("Using GEM @ %pad\n", &gem->dma_addr);  in sun8i_vi_layer_update_buffer()
281 		dma_addr = gem->dma_addr + fb->offsets[i];  in sun8i_vi_layer_update_buffer()
287 			dx /= format->hsub;  in sun8i_vi_layer_update_buffer()
288 			dy /= format->vsub;  in sun8i_vi_layer_update_buffer()
292 		dma_addr += dx * format->cpp[i];  in sun8i_vi_layer_update_buffer()
293 		dma_addr += dy * fb->pitches[i];  in sun8i_vi_layer_update_buffer()
297 				 i + 1, fb->pitches[i]);  in sun8i_vi_layer_update_buffer()
298 		regmap_write(mixer->engine.regs,  in sun8i_vi_layer_update_buffer()
301 			     fb->pitches[i]);  in sun8i_vi_layer_update_buffer()
306 		regmap_write(mixer->engine.regs,  in sun8i_vi_layer_update_buffer()
321 	struct drm_crtc *crtc = new_plane_state->crtc;  in sun8i_vi_layer_atomic_check()
331 		return -EINVAL;  in sun8i_vi_layer_atomic_check()
336 	if (layer->mixer->cfg->scaler_mask & BIT(layer->channel)) {  in sun8i_vi_layer_atomic_check()
353 	unsigned int zpos = new_state->normalized_zpos;  in sun8i_vi_layer_atomic_update()
354 	struct sun8i_mixer *mixer = layer->mixer;  in sun8i_vi_layer_atomic_update()
356 	if (!new_state->crtc || !new_state->visible)  in sun8i_vi_layer_atomic_update()
359 	sun8i_vi_layer_update_coord(mixer, layer->channel,  in sun8i_vi_layer_atomic_update()
360 				    layer->overlay, plane, zpos);  in sun8i_vi_layer_atomic_update()
361 	sun8i_vi_layer_update_alpha(mixer, layer->channel,  in sun8i_vi_layer_atomic_update()
362 				    layer->overlay, plane);  in sun8i_vi_layer_atomic_update()
363 	sun8i_vi_layer_update_formats(mixer, layer->channel,  in sun8i_vi_layer_atomic_update()
364 				      layer->overlay, plane);  in sun8i_vi_layer_atomic_update()
365 	sun8i_vi_layer_update_buffer(mixer, layer->channel,  in sun8i_vi_layer_atomic_update()
366 				     layer->overlay, plane);  in sun8i_vi_layer_atomic_update()
385  * channel is ignored. This structure lists all unique variants
386  * where alpha channel is replaced with "don't care" (X) channel.
482 	layer = devm_kzalloc(drm->dev, sizeof(*layer), GFP_KERNEL);  in sun8i_vi_layer_init_one()
484 		return ERR_PTR(-ENOMEM);  in sun8i_vi_layer_init_one()
486 	if (mixer->cfg->is_de3) {  in sun8i_vi_layer_init_one()
494 	if (!mixer->cfg->ui_num && index == 0)  in sun8i_vi_layer_init_one()
498 	ret = drm_universal_plane_init(drm, &layer->plane, 0,  in sun8i_vi_layer_init_one()
504 		dev_err(drm->dev, "Couldn't initialize layer\n");  in sun8i_vi_layer_init_one()
508 	plane_cnt = mixer->cfg->ui_num + mixer->cfg->vi_num;  in sun8i_vi_layer_init_one()
510 	if (mixer->cfg->vi_num == 1 || mixer->cfg->is_de3) {  in sun8i_vi_layer_init_one()
511 		ret = drm_plane_create_alpha_property(&layer->plane);  in sun8i_vi_layer_init_one()
513 			dev_err(drm->dev, "Couldn't add alpha property\n");  in sun8i_vi_layer_init_one()
518 	ret = drm_plane_create_zpos_property(&layer->plane, index,  in sun8i_vi_layer_init_one()
519 					     0, plane_cnt - 1);  in sun8i_vi_layer_init_one()
521 		dev_err(drm->dev, "Couldn't add zpos property\n");  in sun8i_vi_layer_init_one()
527 	if (mixer->cfg->is_de3)  in sun8i_vi_layer_init_one()
533 	ret = drm_plane_create_color_properties(&layer->plane,  in sun8i_vi_layer_init_one()
539 		dev_err(drm->dev, "Couldn't add encoding and range properties!\n");  in sun8i_vi_layer_init_one()
543 	drm_plane_helper_add(&layer->plane, &sun8i_vi_layer_helper_funcs);  in sun8i_vi_layer_init_one()
544 	layer->mixer = mixer;  in sun8i_vi_layer_init_one()
545 	layer->type = SUN8I_LAYER_TYPE_VI;  in sun8i_vi_layer_init_one()
546 	layer->channel = index;  in sun8i_vi_layer_init_one()
547 	layer->overlay = 0;  in sun8i_vi_layer_init_one()