connector->display_info.color_formats & DRM_COLOR_FORMAT_YCRCB420;
}
+static inline bool is_eotf_supported(u8 output_eotf, u8 sink_eotf)
+{
+ return sink_eotf & BIT(output_eotf);
+}
+
+/**
+ * drm_hdmi_infoframe_set_hdr_metadata() - fill an HDMI DRM infoframe with
+ * HDR metadata from userspace
+ * @frame: HDMI DRM infoframe
+ * @hdr_metadata: hdr_source_metadata info from userspace
+ *
+ * Return: 0 on success or a negative error code on failure.
+ */
+int
+drm_hdmi_infoframe_set_hdr_metadata(struct hdmi_drm_infoframe *frame,
+ const struct drm_connector_state *conn_state)
+{
+ struct drm_connector *connector;
+ struct hdr_output_metadata *hdr_metadata;
+ int err;
+
+ if (!frame || !conn_state)
+ return -EINVAL;
+
+ connector = conn_state->connector;
+
+ if (!conn_state->hdr_output_metadata)
+ return -EINVAL;
+
+ hdr_metadata = conn_state->hdr_output_metadata->data;
+
+ if (!hdr_metadata || !connector)
+ return -EINVAL;
+
+ /* Sink EOTF is Bit map while infoframe is absolute values */
+ if (!is_eotf_supported(hdr_metadata->hdmi_metadata_type1.eotf,
+ connector->hdr_sink_metadata.hdmi_type1.eotf)) {
+ DRM_DEBUG_KMS("EOTF Not Supported\n");
+ return -EINVAL;
+ }
+
+ err = hdmi_drm_infoframe_init(frame);
+ if (err < 0)
+ return err;
+
+ frame->eotf = hdr_metadata->hdmi_metadata_type1.eotf;
+ frame->metadata_type = hdr_metadata->hdmi_metadata_type1.metadata_type;
+
+ BUILD_BUG_ON(sizeof(frame->display_primaries) !=
+ sizeof(hdr_metadata->hdmi_metadata_type1.display_primaries));
+ BUILD_BUG_ON(sizeof(frame->white_point) !=
+ sizeof(hdr_metadata->hdmi_metadata_type1.white_point));
+
+ memcpy(&frame->display_primaries,
+ &hdr_metadata->hdmi_metadata_type1.display_primaries,
+ sizeof(frame->display_primaries));
+
+ memcpy(&frame->white_point,
+ &hdr_metadata->hdmi_metadata_type1.white_point,
+ sizeof(frame->white_point));
+
+ frame->max_display_mastering_luminance =
+ hdr_metadata->hdmi_metadata_type1.max_display_mastering_luminance;
+ frame->min_display_mastering_luminance =
+ hdr_metadata->hdmi_metadata_type1.min_display_mastering_luminance;
+ frame->max_fall = hdr_metadata->hdmi_metadata_type1.max_fall;
+ frame->max_cll = hdr_metadata->hdmi_metadata_type1.max_cll;
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_hdmi_infoframe_set_hdr_metadata);
+
/**
* drm_hdmi_avi_infoframe_from_display_mode() - fill an HDMI AVI infoframe with
* data from a DRM display mode
return 0;
}
+/**
+ * hdmi_drm_infoframe_init() - initialize an HDMI Dynaminc Range and
+ * mastering infoframe
+ * @frame: HDMI DRM infoframe
+ *
+ * Returns 0 on success or a negative error code on failure.
+ */
+int hdmi_drm_infoframe_init(struct hdmi_drm_infoframe *frame)
+{
+ memset(frame, 0, sizeof(*frame));
+
+ frame->type = HDMI_INFOFRAME_TYPE_DRM;
+ frame->version = 1;
+ frame->length = HDMI_DRM_INFOFRAME_SIZE;
+
+ return 0;
+}
+EXPORT_SYMBOL(hdmi_drm_infoframe_init);
+
+static int hdmi_drm_infoframe_check_only(const struct hdmi_drm_infoframe *frame)
+{
+ if (frame->type != HDMI_INFOFRAME_TYPE_DRM ||
+ frame->version != 1)
+ return -EINVAL;
+
+ if (frame->length != HDMI_DRM_INFOFRAME_SIZE)
+ return -EINVAL;
+
+ return 0;
+}
+
+/**
+ * hdmi_drm_infoframe_check() - check a HDMI DRM infoframe
+ * @frame: HDMI DRM infoframe
+ *
+ * Validates that the infoframe is consistent.
+ * Returns 0 on success or a negative error code on failure.
+ */
+int hdmi_drm_infoframe_check(struct hdmi_drm_infoframe *frame)
+{
+ return hdmi_drm_infoframe_check_only(frame);
+}
+EXPORT_SYMBOL(hdmi_drm_infoframe_check);
+
+/**
+ * hdmi_drm_infoframe_pack_only() - write HDMI DRM infoframe to binary buffer
+ * @frame: HDMI DRM infoframe
+ * @buffer: destination buffer
+ * @size: size of buffer
+ *
+ * Packs the information contained in the @frame structure into a binary
+ * representation that can be written into the corresponding controller
+ * registers. Also computes the checksum as required by section 5.3.5 of
+ * the HDMI 1.4 specification.
+ *
+ * Returns the number of bytes packed into the binary buffer or a negative
+ * error code on failure.
+ */
+ssize_t hdmi_drm_infoframe_pack_only(const struct hdmi_drm_infoframe *frame,
+ void *buffer, size_t size)
+{
+ u8 *ptr = buffer;
+ size_t length;
+ int i;
+
+ length = HDMI_INFOFRAME_HEADER_SIZE + frame->length;
+
+ if (size < length)
+ return -ENOSPC;
+
+ memset(buffer, 0, size);
+
+ ptr[0] = frame->type;
+ ptr[1] = frame->version;
+ ptr[2] = frame->length;
+ ptr[3] = 0; /* checksum */
+
+ /* start infoframe payload */
+ ptr += HDMI_INFOFRAME_HEADER_SIZE;
+
+ *ptr++ = frame->eotf;
+ *ptr++ = frame->metadata_type;
+
+ for (i = 0; i < 3; i++) {
+ *ptr++ = frame->display_primaries[i].x;
+ *ptr++ = frame->display_primaries[i].x >> 8;
+ *ptr++ = frame->display_primaries[i].y;
+ *ptr++ = frame->display_primaries[i].y >> 8;
+ }
+
+ *ptr++ = frame->white_point.x;
+ *ptr++ = frame->white_point.x >> 8;
+
+ *ptr++ = frame->white_point.y;
+ *ptr++ = frame->white_point.y >> 8;
+
+ *ptr++ = frame->max_display_mastering_luminance;
+ *ptr++ = frame->max_display_mastering_luminance >> 8;
+
+ *ptr++ = frame->min_display_mastering_luminance;
+ *ptr++ = frame->min_display_mastering_luminance >> 8;
+
+ *ptr++ = frame->max_cll;
+ *ptr++ = frame->max_cll >> 8;
+
+ *ptr++ = frame->max_fall;
+ *ptr++ = frame->max_fall >> 8;
+
+ hdmi_infoframe_set_checksum(buffer, length);
+
+ return length;
+}
+EXPORT_SYMBOL(hdmi_drm_infoframe_pack_only);
+
+/**
+ * hdmi_drm_infoframe_pack() - check a HDMI DRM infoframe,
+ * and write it to binary buffer
+ * @frame: HDMI DRM infoframe
+ * @buffer: destination buffer
+ * @size: size of buffer
+ *
+ * Validates that the infoframe is consistent and updates derived fields
+ * (eg. length) based on other fields, after which it packs the information
+ * contained in the @frame structure into a binary representation that
+ * can be written into the corresponding controller registers. This function
+ * also computes the checksum as required by section 5.3.5 of the HDMI 1.4
+ * specification.
+ *
+ * Returns the number of bytes packed into the binary buffer or a negative
+ * error code on failure.
+ */
+ssize_t hdmi_drm_infoframe_pack(struct hdmi_drm_infoframe *frame,
+ void *buffer, size_t size)
+{
+ int ret;
+
+ ret = hdmi_drm_infoframe_check(frame);
+ if (ret)
+ return ret;
+
+ return hdmi_drm_infoframe_pack_only(frame, buffer, size);
+}
+EXPORT_SYMBOL(hdmi_drm_infoframe_pack);
+
/*
* hdmi_vendor_any_infoframe_check() - check a vendor infoframe
*/
length = hdmi_avi_infoframe_pack_only(&frame->avi,
buffer, size);
break;
+ case HDMI_INFOFRAME_TYPE_DRM:
+ length = hdmi_drm_infoframe_pack_only(&frame->drm,
+ buffer, size);
+ break;
case HDMI_INFOFRAME_TYPE_SPD:
length = hdmi_spd_infoframe_pack_only(&frame->spd,
buffer, size);
case HDMI_INFOFRAME_TYPE_AVI:
length = hdmi_avi_infoframe_pack(&frame->avi, buffer, size);
break;
+ case HDMI_INFOFRAME_TYPE_DRM:
+ length = hdmi_drm_infoframe_pack(&frame->drm, buffer, size);
+ break;
case HDMI_INFOFRAME_TYPE_SPD:
length = hdmi_spd_infoframe_pack(&frame->spd, buffer, size);
break;
return "Source Product Description (SPD)";
case HDMI_INFOFRAME_TYPE_AUDIO:
return "Audio";
+ case HDMI_INFOFRAME_TYPE_DRM:
+ return "Dynamic Range and Mastering";
}
return "Reserved";
}
frame->downmix_inhibit ? "Yes" : "No");
}
+/**
+ * hdmi_drm_infoframe_log() - log info of HDMI DRM infoframe
+ * @level: logging level
+ * @dev: device
+ * @frame: HDMI DRM infoframe
+ */
+static void hdmi_drm_infoframe_log(const char *level,
+ struct device *dev,
+ const struct hdmi_drm_infoframe *frame)
+{
+ int i;
+
+ hdmi_infoframe_log_header(level, dev,
+ (struct hdmi_any_infoframe *)frame);
+ hdmi_log("length: %d\n", frame->length);
+ hdmi_log("metadata type: %d\n", frame->metadata_type);
+ hdmi_log("eotf: %d\n", frame->eotf);
+ for (i = 0; i < 3; i++) {
+ hdmi_log("x[%d]: %d\n", i, frame->display_primaries[i].x);
+ hdmi_log("y[%d]: %d\n", i, frame->display_primaries[i].y);
+ }
+
+ hdmi_log("white point x: %d\n", frame->white_point.x);
+ hdmi_log("white point y: %d\n", frame->white_point.y);
+
+ hdmi_log("max_display_mastering_luminance: %d\n",
+ frame->max_display_mastering_luminance);
+ hdmi_log("min_display_mastering_luminance: %d\n",
+ frame->min_display_mastering_luminance);
+
+ hdmi_log("max_cll: %d\n", frame->max_cll);
+ hdmi_log("max_fall: %d\n", frame->max_fall);
+}
+
static const char *
hdmi_3d_structure_get_name(enum hdmi_3d_structure s3d_struct)
{
case HDMI_INFOFRAME_TYPE_VENDOR:
hdmi_vendor_any_infoframe_log(level, dev, &frame->vendor);
break;
+ case HDMI_INFOFRAME_TYPE_DRM:
+ hdmi_drm_infoframe_log(level, dev, &frame->drm);
+ break;
}
}
EXPORT_SYMBOL(hdmi_infoframe_log);
HDMI_INFOFRAME_TYPE_AVI = 0x82,
HDMI_INFOFRAME_TYPE_SPD = 0x83,
HDMI_INFOFRAME_TYPE_AUDIO = 0x84,
+ HDMI_INFOFRAME_TYPE_DRM = 0x87,
};
#define HDMI_IEEE_OUI 0x000c03
#define HDMI_AVI_INFOFRAME_SIZE 13
#define HDMI_SPD_INFOFRAME_SIZE 25
#define HDMI_AUDIO_INFOFRAME_SIZE 10
+#define HDMI_DRM_INFOFRAME_SIZE 26
#define HDMI_INFOFRAME_SIZE(type) \
(HDMI_INFOFRAME_HEADER_SIZE + HDMI_ ## type ## _INFOFRAME_SIZE)
unsigned short right_bar;
};
+/* DRM Infoframe as per CTA 861.G spec */
+struct hdmi_drm_infoframe {
+ enum hdmi_infoframe_type type;
+ unsigned char version;
+ unsigned char length;
+ enum hdmi_eotf eotf;
+ enum hdmi_metadata_type metadata_type;
+ struct {
+ u16 x, y;
+ } display_primaries[3];
+ struct {
+ u16 x, y;
+ } white_point;
+ u16 max_display_mastering_luminance;
+ u16 min_display_mastering_luminance;
+ u16 max_cll;
+ u16 max_fall;
+};
+
int hdmi_avi_infoframe_init(struct hdmi_avi_infoframe *frame);
ssize_t hdmi_avi_infoframe_pack(struct hdmi_avi_infoframe *frame, void *buffer,
size_t size);
ssize_t hdmi_avi_infoframe_pack_only(const struct hdmi_avi_infoframe *frame,
void *buffer, size_t size);
int hdmi_avi_infoframe_check(struct hdmi_avi_infoframe *frame);
+int hdmi_drm_infoframe_init(struct hdmi_drm_infoframe *frame);
+ssize_t hdmi_drm_infoframe_pack(struct hdmi_drm_infoframe *frame, void *buffer,
+ size_t size);
+ssize_t hdmi_drm_infoframe_pack_only(const struct hdmi_drm_infoframe *frame,
+ void *buffer, size_t size);
+int hdmi_drm_infoframe_check(struct hdmi_drm_infoframe *frame);
enum hdmi_spd_sdi {
HDMI_SPD_SDI_UNKNOWN,
struct hdmi_spd_infoframe spd;
union hdmi_vendor_any_infoframe vendor;
struct hdmi_audio_infoframe audio;
+ struct hdmi_drm_infoframe drm;
};
ssize_t hdmi_infoframe_pack(union hdmi_infoframe *frame, void *buffer,
git.samba.org / sfrench / cifs-2.6.git / commitdiff