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backend/drm: parse TILE property

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This commit is contained in:
EBADBEEF 2023-05-30 19:42:51 -07:00
parent cbf921ccbb
commit 2a697512d7
6 changed files with 54 additions and 0 deletions
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41
backend/drm/util.c
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@ -97,6 +97,47 @@ void parse_edid(struct wlr_drm_connector *conn, size_t len, const uint8_t *data)
di_info_destroy(info);
}
void parse_tile(struct wlr_drm_connector *conn, size_t len, const uint8_t *data) {
struct wlr_output_group_tile_info *tile_info = &conn->tile_info;
memset(tile_info, 0, sizeof(*tile_info));
if (len == 0)
return;
// Reference:
// - include/linux/drm/drm_connector.h tile_blob_ptr
// - drivers/gpu/drm/drm_edid.c drm_parse_tiled_block()
//
// Note: group_id is always > 0
int ret = sscanf((char*)data, "%d:%d:%d:%d:%d:%d:%d:%d",
&tile_info->group_id,
&tile_info->is_single_monitor,
&tile_info->num_h,
&tile_info->num_v,
&tile_info->h_loc,
&tile_info->v_loc,
&tile_info->h_size,
&tile_info->v_size);
if(ret != 8) {
wlr_log(WLR_ERROR, "Unable to understand tile information for "
"connector %s", conn->name);
return;
}
wlr_log(WLR_INFO, "Connector '%s' TILE information: "
"group ID %d, single monitor %d, total %d horizontal tiles, "
"total %d vertical tiles, horizontal tile %d, vertical tile "
"%d, width %d, height %d",
conn->name,
tile_info->group_id,
tile_info->is_single_monitor,
tile_info->num_h,
tile_info->num_v,
tile_info->h_loc,
tile_info->v_loc,
tile_info->h_size,
tile_info->v_size);
}
const char *drm_connector_status_str(drmModeConnection status) {
switch (status) {
case DRM_MODE_CONNECTED: