dev/drm2/drm_modes.c

43  * drm_mode_debug_printmodeline - debug print a mode
45  * @mode: mode to print
50  * Describe @mode using DRM_DEBUG.
52 void drm_mode_debug_printmodeline(struct drm_display_mode *mode)
56 		mode->base.id, mode->name, mode->vrefresh, mode->clock,
57 		mode->hdisplay, mode->hsync_start,
58 		mode->hsync_end, mode->htotal,
59 		mode->vdisplay, mode->vsync_start,
60 		mode->vsync_end, mode->vtotal, mode->type, mode->flags);
265 	/* ignore - just set the mode flag for interlaced */
270 	/* Fill the mode line name */
441 	/* finally, pack the results in the mode struct */
507  * drm_mode_set_name - set the name on a mode
508  * @mode: name will be set in this mode
513  * Set the name of @mode to a standard format.
515 void drm_mode_set_name(struct drm_display_mode *mode)
517 	bool interlaced = !!(mode->flags & DRM_MODE_FLAG_INTERLACE);
519 	snprintf(mode->name, DRM_DISPLAY_MODE_LEN, "%dx%d%s",
520 		 mode->hdisplay, mode->vdisplay,
545  * drm_mode_width - get the width of a mode
546  * @mode: mode
551  * Return @mode's width (hdisplay) value.
556  * @mode->hdisplay
558 int drm_mode_width(struct drm_display_mode *mode)
560 	return mode->hdisplay;
565  * drm_mode_height - get the height of a mode
566  * @mode: mode
571  * Return @mode's height (vdisplay) value.
576  * @mode->vdisplay
578 int drm_mode_height(struct drm_display_mode *mode)
580 	return mode->vdisplay;
583 /** drm_mode_hsync - get the hsync of a mode
584  * @mode: mode
591 int drm_mode_hsync(const struct drm_display_mode *mode)
595 	if (mode->hsync)
596 		return mode->hsync;
598 	if (mode->htotal < 0)
601 	calc_val = (mode->clock * 1000) / mode->htotal; /* hsync in Hz */
609  * drm_mode_vrefresh - get the vrefresh of a mode
610  * @mode: mode
615  * Return @mode's vrefresh rate in Hz or calculate it if necessary.
624 int drm_mode_vrefresh(const struct drm_display_mode *mode)
629 	if (mode->vrefresh > 0)
630 		refresh = mode->vrefresh;
631 	else if (mode->htotal > 0 && mode->vtotal > 0) {
633 		vtotal = mode->vtotal;
635 		calc_val = (mode->clock * 1000);
636 		calc_val /= mode->htotal;
639 		if (mode->flags & DRM_MODE_FLAG_INTERLACE)
641 		if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
643 		if (mode->vscan > 1)
644 			refresh /= mode->vscan;
651  * @p: mode
710  * drm_mode_duplicate - allocate and duplicate an existing mode
711  * @m: mode to duplicate
716  * Just allocate a new mode, copy the existing mode into it, and return
720 					    const struct drm_display_mode *mode)
730 	*nmode = *mode;
738  * @mode1: first mode
739  * @mode2: second mode
794 	struct drm_display_mode *mode;
796 	list_for_each_entry(mode, mode_list, head) {
797 		if (maxPitch > 0 && mode->hdisplay > maxPitch)
798 			mode->status = MODE_BAD_WIDTH;
800 		if (maxX > 0 && mode->hdisplay > maxX)
801 			mode->status = MODE_VIRTUAL_X;
803 		if (maxY > 0 && mode->vdisplay > maxY)
804 			mode->status = MODE_VIRTUAL_Y;
819  * Some code may need to check a mode list against the clock limits of the
820  * device in question.  This function walks the mode list, testing to make
821  * sure each mode falls within a given range (defined by @min and @max
822  * arrays) and sets @mode->status as needed.
828 	struct drm_display_mode *mode;
831 	list_for_each_entry(mode, mode_list, head) {
834 			if (mode->clock >= min[i] && mode->clock <= max[i]) {
840 			mode->status = MODE_CLOCK_RANGE;
845  * drm_mode_prune_invalid - remove invalid modes from mode list
853  * Once mode list generation is complete, a caller can use this routine to
854  * remove invalid modes from a mode list.  If any of the modes have a
860 	struct drm_display_mode *mode, *t;
862 	list_for_each_entry_safe(mode, t, mode_list, head) {
863 		if (mode->status != MODE_OK) {
864 			list_del(&mode->head);
866 				drm_mode_debug_printmodeline(mode);
867 				DRM_DEBUG_KMS("Not using %s mode %d\n",
868 					mode->name, mode->status);
870 			drm_mode_destroy(dev, mode);
878  * @lh_a: list_head for first mode
879  * @lh_b: list_head for second mode
909  * drm_mode_sort - sort mode list
923  * drm_mode_connector_list_update - update the mode list for the connector
930  * to the actual mode list. It compares the probed mode against the current
936 	struct drm_display_mode *mode;
943 		/* go through current modes checking for the new probed mode */
944 		list_for_each_entry(mode, &connector->modes, head) {
945 			if (drm_mode_equal(pmode, mode)) {
947 				/* if equal delete the probed mode */
948 				mode->status = pmode->status;
950 				mode->type |= pmode->type;
965  * @mode_option - per connector mode option
978 					       struct drm_cmdline_mode *mode)
995 		mode->specified = false;
1089 		/* catch mode that begins with digits but has no 'x' */
1094 		printf("parse error at position %i in video mode '%s'\n",
1096 		mode->specified = false;
1101 		mode->specified = true;
1102 		mode->xres = xres;
1103 		mode->yres = yres;
1107 		mode->refresh_specified = true;
1108 		mode->refresh = refresh;
1112 		mode->bpp_specified = true;
1113 		mode->bpp = bpp;
1115 	mode->rb = rb;
1116 	mode->cvt = cvt;
1117 	mode->interlace = interlace;
1118 	mode->margins = margins;
1119 	mode->force = force;
1128 	struct drm_display_mode *mode;
1131 		mode = drm_cvt_mode(dev,
1137 		mode = drm_gtf_mode(dev,
1142 	if (!mode)
1145 	drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
1146 	return mode;