dev/drm2/drm_fb_helper.c

144  * mode setting driver. They can be used mostly independantely from the crtc
149 /* simple single crtc case helper function */
234 static void drm_fb_helper_save_lut_atomic(struct drm_crtc *crtc, struct drm_fb_helper *helper)
239 	r_base = crtc->gamma_store;
240 	g_base = r_base + crtc->gamma_size;
241 	b_base = g_base + crtc->gamma_size;
243 	for (i = 0; i < crtc->gamma_size; i++)
244 		helper->funcs->gamma_get(crtc, &r_base[i], &g_base[i], &b_base[i], i);
247 static void drm_fb_helper_restore_lut_atomic(struct drm_crtc *crtc)
251 	if (crtc->funcs->gamma_set == NULL)
254 	r_base = crtc->gamma_store;
255 	g_base = r_base + crtc->gamma_size;
256 	b_base = g_base + crtc->gamma_size;
258 	crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size);
275 			if (!mode_set->crtc->enabled)
278 			funcs =	mode_set->crtc->helper_private;
279 			drm_fb_helper_save_lut_atomic(mode_set->crtc, helper);
280 			funcs->mode_set_base_atomic(mode_set->crtc,
293 static struct drm_framebuffer *drm_mode_config_fb(struct drm_crtc *crtc)
295 	struct drm_device *dev = crtc->dev;
299 		if (crtc->base.id == c->base.id)
309 	struct drm_crtc *crtc;
316 		crtc = mode_set->crtc;
317 		funcs = crtc->helper_private;
318 		fb = drm_mode_config_fb(crtc);
320 		if (!crtc->enabled)
328 		drm_fb_helper_restore_lut_atomic(mode_set->crtc);
329 		funcs->mode_set_base_atomic(mode_set->crtc, fb, crtc->x,
330 					    crtc->y, LEAVE_ATOMIC_MODE_SET);
345 		ret = mode_set->crtc->funcs->set_config(mode_set);
403 		DRM_ERROR("Failed to restore crtc configuration\n");
435 	struct drm_crtc *crtc;
444 		crtc = fb_helper->crtc_info[i].mode_set.crtc;
446 		if (!crtc->enabled)
508 	struct drm_crtc *crtc;
541 	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
542 		fb_helper->crtc_info[i].mode_set.crtc = crtc;
573 static int setcolreg(struct drm_crtc *crtc, u16 red, u16 green,
617 					fb_helper->funcs->gamma_set(crtc, red,
621 			fb_helper->funcs->gamma_get(crtc, &r,
626 				fb_helper->funcs->gamma_set(crtc, r,
633 		fb_helper->funcs->gamma_set(crtc, red, green, blue, pindex);
642 	struct drm_crtc *crtc;
647 		crtc = fb_helper->crtc_info[i].mode_set.crtc;
648 		crtc_funcs = crtc->helper_private;
666 			rc = setcolreg(crtc, hred, hgreen, hblue, start++, info);
670 		crtc_funcs->load_lut(crtc);
774 	struct drm_crtc *crtc;
785 		crtc = fb_helper->crtc_info[i].mode_set.crtc;
786 		ret = crtc->funcs->set_config(&fb_helper->crtc_info[i].mode_set);
808 	struct drm_crtc *crtc;
814 		crtc = fb_helper->crtc_info[i].mode_set.crtc;
822 			ret = crtc->funcs->set_config(modeset);
845 	struct drm_crtc *crtc;
900 				gamma_size = fb_helper->crtc_info[i].mode_set.crtc->gamma_size;
916 		DRM_INFO("Cannot find any crtc or sizes - going 1024x768\n");
954 			crtc = fb_helper->crtc_info[i].mode_set.crtc;
955 			ret = crtc->funcs->set_config(&fb_helper->crtc_info[i].mode_set);
1147 	/* only contemplate cloning in the single crtc case */
1257 	struct drm_fb_helper_crtc **crtcs, *crtc;
1290 	/* select a crtc for this connector and then attempt to configure
1293 		crtc = &fb_helper->crtc_info[c];
1299 			if (best_crtcs[o] == crtc)
1303 			/* ignore cloning unless only a single crtc */
1311 		crtcs[n] = crtc;
1316 			best_crtc = crtc;
1369 	/* fill out the connector<->crtc mappings into the modesets */
1381 			DRM_DEBUG_KMS("desired mode %s set on crtc %d\n",
1382 				      mode->name, fb_crtc->mode_set.crtc->base.id);
1459 	struct drm_crtc *crtc;
1465 	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
1466 		if (crtc->fb)
1468 		if (crtc->fb == fb_helper->fb)