static void printProperty(int fd, drmModePropertyRes* prop, uint64_t value) {
fprintf(stdout, " Property: %i\n", prop->prop_id);
fprintf(stdout, " Name: %s\n", prop->name);
fprintf(stdout, " Flags: 0x%08x\n", prop->flags);
fprintf(stdout, " Values: %d: %s\n", prop->count_values, getList64(prop->values, prop->count_values));
if (prop->flags & DRM_MODE_PROP_BLOB) {
drmModePropertyBlobRes* blob;
fprintf(stdout, " BLOB: ");
blob = drmModeGetPropertyBlob(fd, value);
if (!blob) {
fprintf(stdout, "error getting blob %lu\n", value);
} else {
fprintf(stdout, "%d bytes, %08X...\n", blob->length, *(uint32_t *)blob->data);
drmModeFreePropertyBlob(blob);
}
} else {
int i;
fprintf(stdout, " Enum: %lu\n", value);
for (i = 0; i < prop->count_enums; i++) {
fprintf(stdout, " %1s %4lld = %s\n",
prop->enums[i].value == value ? "*" : "",
prop->enums[i].value, prop->enums[i].name);
}
}
fprintf(stdout, "\n");
}
static GBytes *
read_output_edid (MetaMonitorManagerKms *manager_kms,
MetaOutput *output)
{
MetaOutputKms *output_kms = output->driver_private;
drmModePropertyBlobPtr edid_blob = NULL;
if (output_kms->edid_blob_id == 0)
return NULL;
edid_blob = drmModeGetPropertyBlob (manager_kms->fd, output_kms->edid_blob_id);
if (!edid_blob)
{
meta_warning ("Failed to read EDID of output %s: %s\n", output->name, strerror(errno));
return NULL;
}
if (edid_blob->length > 0)
return g_bytes_new_with_free_func (edid_blob->data, edid_blob->length,
(GDestroyNotify)drmModeFreePropertyBlob, edid_blob);
else
{
drmModeFreePropertyBlob (edid_blob);
return NULL;
}
}
static void
output_destroy(xf86OutputPtr output)
{
struct output_private *priv = output->driver_private;
if (priv->edid_blob)
drmModeFreePropertyBlob(priv->edid_blob);
drmModeFreeConnector(priv->drm_connector);
free(priv);
output->driver_private = NULL;
}
static uint32_t blob_duplicate(int fd, uint32_t id_orig)
{
drmModePropertyBlobPtr orig = drmModeGetPropertyBlob(fd, id_orig);
uint32_t id_new;
igt_assert(orig);
do_or_die(drmModeCreatePropertyBlob(fd, orig->data, orig->length,
&id_new));
drmModeFreePropertyBlob(orig);
return id_new;
}
static gboolean
output_get_tile_info (MetaMonitorManagerKms *manager_kms,
MetaOutput *output)
{
MetaOutputKms *output_kms = output->driver_private;
drmModePropertyBlobPtr tile_blob = NULL;
int ret;
if (output_kms->tile_blob_id == 0)
return FALSE;
tile_blob = drmModeGetPropertyBlob (manager_kms->fd, output_kms->tile_blob_id);
if (!tile_blob)
{
meta_warning ("Failed to read TILE of output %s: %s\n", output->name, strerror(errno));
return FALSE;
}
if (tile_blob->length > 0)
{
ret = sscanf ((char *)tile_blob->data, "%d:%d:%d:%d:%d:%d:%d:%d",
&output->tile_info.group_id,
&output->tile_info.flags,
&output->tile_info.max_h_tiles,
&output->tile_info.max_v_tiles,
&output->tile_info.loc_h_tile,
&output->tile_info.loc_v_tile,
&output->tile_info.tile_w,
&output->tile_info.tile_h);
if (ret != 8)
return FALSE;
return TRUE;
}
else
{
drmModeFreePropertyBlob (tile_blob);
return FALSE;
}
}
const std::string Property::to_str(uint64_t val) const
{
drmModePropertyPtr p = m_priv->drm_prop;
string ret;
if (p->flags & DRM_MODE_PROP_ENUM) {
for (int i = 0; i < p->count_enums; i++) {
if (p->enums[i].value == val) {
ret += string("\"") + p->enums[i].name + "\"";
break;
}
}
ret += " (enum: " + to_string(val) + ")";
} else if (p->flags & DRM_MODE_PROP_RANGE) {
ret += to_string(val);
if (p->count_values == 2)
ret += " [" + to_string(p->values[0]) + "-" +
to_string(p->values[1]) + "]";
else
ret += " <broken range>";
} else if (p->flags & DRM_MODE_PROP_BLOB) {
ret += "Blob id: " + to_string(val);
auto blob = drmModeGetPropertyBlob(card().fd(), (uint32_t) val);
if (blob) {
ret += " length: " + to_string(blob->length);
drmModeFreePropertyBlob(blob);
}
} else {
ret += to_string(val);
}
if (p->flags & DRM_MODE_PROP_PENDING)
ret += " (pendig)";
if (p->flags & DRM_MODE_PROP_IMMUTABLE)
ret += " (immutable)";
return ret;
}
static void
drmmode_output_destroy(xf86OutputPtr output)
{
drmmode_output_private_ptr drmmode_output = output->driver_private;
int i;
if (drmmode_output->edid_blob)
drmModeFreePropertyBlob(drmmode_output->edid_blob);
for (i = 0; i < drmmode_output->num_props; i++) {
drmModeFreeProperty(drmmode_output->props[i].mode_prop);
free(drmmode_output->props[i].atoms);
}
free(drmmode_output->props);
drmModeFreeConnector(drmmode_output->mode_output);
if (drmmode_output->private_data) {
free(drmmode_output->private_data);
drmmode_output->private_data = NULL;
}
if (drmmode_output->backlight_iface)
drmmode_backlight_set(output, drmmode_output->backlight_active_level);
free(drmmode_output);
output->driver_private = NULL;
}
/**
* Get the extended display identification data for the monitor connected to a connector
*
* @param connection The identifier for the connection to the card
* @param connector_index The index of the connector
* @param edid Storage location for the EDID, it should be 128 bytes,
* or 256 bytes if you are counting on the depricated EDID 2.0,
* If hexadecimal, twice that + zero termiation.
* @param size The size allocated to `edid` excluding your zero termination
* @param hexadecimal Whether to convert to hexadecimal representation, this is preferable
* @return The length of the found value, 0 if none, as if hex is false
*/
long blueshift_drm_get_edid(int connection, int connector_index, char* edid, long size, int hexadecimal)
{
card_connection* card = card_connections + connection;
drmModeConnector* connector = *(card->connectors + connector_index);
int fd = card->fd;
long rc = 0;
int prop_n = connector->count_props;
int prop_i;
for (prop_i = 0; prop_i < prop_n; prop_i++)
{
drmModePropertyRes* prop = drmModeGetProperty(fd, connector->props[prop_i]);
if (!strcmp("EDID", prop->name))
{
drmModePropertyBlobRes* blob = drmModeGetPropertyBlob(fd, (uint32_t)(connector->prop_values[prop_i]));
if (hexadecimal)
{
uint32_t n = (uint32_t)size / 2;
uint32_t i;
rc += blob->length;
if (n > blob->length)
n = blob->length;
for (i = 0; i < n ; i++)
{
*(edid + i * 2 + 0) = "0123456789abcdef"[(*((char*)(blob->data) + i) >> 4) & 15];
*(edid + i * 2 + 1) = "0123456789abcdef"[(*((char*)(blob->data) + i) >> 0) & 15];
}
}
else
{
uint32_t len = blob->length < size ? blob->length : (uint32_t)size;
memcpy(edid, blob->data, (size_t)len * sizeof(char));
}
drmModeFreePropertyBlob(blob);
prop_i = prop_n; /* stop the for-loop */
}
/* dump_blob and dump_prop shamelessly copied from ../modetest/modetest.c */
static void
dump_blob(uint32_t blob_id)
{
uint32_t i;
unsigned char *blob_data;
drmModePropertyBlobPtr blob;
blob = drmModeGetPropertyBlob(fd, blob_id);
if (!blob) {
printf("\n");
return;
}
blob_data = blob->data;
for (i = 0; i < blob->length; i++) {
if (i % 16 == 0)
printf("\n\t\t\t");
printf("%.2hhx", blob_data[i]);
}
printf("\n");
drmModeFreePropertyBlob(blob);
}
static DisplayModePtr
output_get_modes(xf86OutputPtr output)
{
struct output_private *priv = output->driver_private;
drmModeConnectorPtr drm_connector = priv->drm_connector;
drmModeModeInfoPtr drm_mode = NULL;
drmModePropertyPtr props = NULL;
xf86MonPtr ddc_mon = NULL;
DisplayModePtr modes = NULL, mode = NULL;
int i;
for (i = 0; i < drm_connector->count_props; i++) {
props = drmModeGetProperty(priv->fd, drm_connector->props[i]);
if (!props)
continue;
if (!(props->flags & DRM_MODE_PROP_BLOB))
goto out_free;
if (!strcmp(props->name, "EDID")) {
if (priv->edid_blob)
drmModeFreePropertyBlob(priv->edid_blob);
priv->edid_blob = drmModeGetPropertyBlob(priv->fd,
drm_connector->prop_values[i]);
}
out_free:
drmModeFreeProperty(props);
}
if (priv->edid_blob) {
ddc_mon = xf86InterpretEDID(output->scrn->scrnIndex,
priv->edid_blob->data);
if (ddc_mon && priv->edid_blob->length > 128)
ddc_mon->flags |= MONITOR_EDID_COMPLETE_RAWDATA;
}
xf86OutputSetEDID(output, ddc_mon);
for (i = 0; i < drm_connector->count_modes; i++) {
drm_mode = &drm_connector->modes[i];
if (drm_mode) {
mode = calloc(1, sizeof(DisplayModeRec));
if (!mode)
continue;
mode->Clock = drm_mode->clock;
mode->HDisplay = drm_mode->hdisplay;
mode->HSyncStart = drm_mode->hsync_start;
mode->HSyncEnd = drm_mode->hsync_end;
mode->HTotal = drm_mode->htotal;
mode->VDisplay = drm_mode->vdisplay;
mode->VSyncStart = drm_mode->vsync_start;
mode->VSyncEnd = drm_mode->vsync_end;
mode->VTotal = drm_mode->vtotal;
mode->Flags = drm_mode->flags;
mode->HSkew = drm_mode->hskew;
mode->VScan = drm_mode->vscan;
mode->VRefresh = xf86ModeVRefresh(mode);
mode->Private = (void *)drm_mode;
mode->type = 0;
if (drm_mode->type & DRM_MODE_TYPE_PREFERRED)
mode->type |= M_T_PREFERRED;
if (drm_mode->type & DRM_MODE_TYPE_DRIVER)
mode->type |= M_T_DRIVER;
xf86SetModeDefaultName(mode);
modes = xf86ModesAdd(modes, mode);
xf86PrintModeline(0, mode);
}
}
return modes;
}
static DisplayModePtr
drmmode_output_get_modes(xf86OutputPtr output)
{
drmmode_output_private_ptr drmmode_output = output->driver_private;
drmModeConnectorPtr koutput = drmmode_output->mode_output;
drmmode_ptr drmmode = drmmode_output->drmmode;
int i;
DisplayModePtr Modes = NULL, Mode;
drmModePropertyPtr props;
struct fixed_panel_lvds *p_lvds;
drmModeModeInfo *mode_ptr;
/* look for an EDID property */
for (i = 0; i < koutput->count_props; i++) {
props = drmModeGetProperty(drmmode->fd, koutput->props[i]);
if (!props)
continue;
if (!(props->flags & DRM_MODE_PROP_BLOB)) {
drmModeFreeProperty(props);
continue;
}
if (!strcmp(props->name, "EDID")) {
drmModeFreePropertyBlob(drmmode_output->edid_blob);
drmmode_output->edid_blob =
drmModeGetPropertyBlob(drmmode->fd,
koutput->prop_values[i]);
}
drmModeFreeProperty(props);
}
if (drmmode_output->edid_blob)
xf86OutputSetEDID(output,
xf86InterpretEDID(output->scrn->scrnIndex,
drmmode_output->edid_blob->data));
else
xf86OutputSetEDID(output,
xf86InterpretEDID(output->scrn->scrnIndex,
NULL));
/* modes should already be available */
for (i = 0; i < koutput->count_modes; i++) {
Mode = xnfalloc(sizeof(DisplayModeRec));
drmmode_ConvertFromKMode(output->scrn, &koutput->modes[i],
Mode);
Modes = xf86ModesAdd(Modes, Mode);
}
p_lvds = drmmode_output->private_data;
/*
* If the connector type is LVDS, we will traverse the kernel mode to
* get the panel limit.
* If it is incorrect, please fix me.
*/
if ((koutput->connector_type == DRM_MODE_CONNECTOR_LVDS) && p_lvds) {
p_lvds->hdisplay = 0;
p_lvds->vdisplay = 0;
for (i = 0; i < koutput->count_modes; i++) {
mode_ptr = &koutput->modes[i];
if ((mode_ptr->hdisplay >= p_lvds->hdisplay) &&
(mode_ptr->vdisplay >= p_lvds->vdisplay)) {
p_lvds->hdisplay = mode_ptr->hdisplay;
p_lvds->vdisplay = mode_ptr->vdisplay;
}
}
if (!p_lvds->hdisplay || !p_lvds->vdisplay)
xf86DrvMsg(output->scrn->scrnIndex, X_ERROR,
"Incorrect KMS mode.\n");
drmmode_output_lvds_edid(output, p_lvds);
}
return Modes;
}