return false;
}
-void mod_freesync_build_vrr_infopacket(struct mod_freesync *mod_freesync,
- const struct dc_stream_state *stream,
- const struct mod_vrr_params *vrr,
- struct dc_info_packet *infopacket)
+static void build_vrr_infopacket_header_v1(enum signal_type signal,
+ struct dc_info_packet *infopacket,
+ unsigned int *payload_size)
{
- /* SPD info packet for FreeSync */
- unsigned char checksum = 0;
- unsigned int idx, payload_size = 0;
-
- /* Check if Freesync is supported. Return if false. If true,
- * set the corresponding bit in the info packet
- */
- if (!vrr->supported || !vrr->send_vsif)
- return;
-
- if (dc_is_hdmi_signal(stream->signal)) {
+ if (dc_is_hdmi_signal(signal)) {
/* HEADER */
/* HB2 = [Bits 7:5 = 0] [Bits 4:0 = Length = 0x08] */
infopacket->hb2 = 0x08;
- payload_size = 0x08;
+ *payload_size = 0x08;
- } else if (dc_is_dp_signal(stream->signal)) {
+ } else if (dc_is_dp_signal(signal)) {
/* HEADER */
*/
infopacket->hb3 = 0x04;
- payload_size = 0x1B;
+ *payload_size = 0x1B;
}
+}
+
+static void build_vrr_infopacket_header_v2(enum signal_type signal,
+ struct dc_info_packet *infopacket,
+ unsigned int *payload_size)
+{
+ if (dc_is_hdmi_signal(signal)) {
+
+ /* HEADER */
+
+ /* HB0 = Packet Type = 0x83 (Source Product
+ * Descriptor InfoFrame)
+ */
+ infopacket->hb0 = DC_HDMI_INFOFRAME_TYPE_SPD;
+
+ /* HB1 = Version = 0x02 */
+ infopacket->hb1 = 0x02;
+
+ /* HB2 = [Bits 7:5 = 0] [Bits 4:0 = Length = 0x09] */
+ infopacket->hb2 = 0x09;
+
+ *payload_size = 0x0A;
+ } else if (dc_is_dp_signal(signal)) {
+
+ /* HEADER */
+
+ /* HB0 = Secondary-data Packet ID = 0 - Only non-zero
+ * when used to associate audio related info packets
+ */
+ infopacket->hb0 = 0x00;
+
+ /* HB1 = Packet Type = 0x83 (Source Product
+ * Descriptor InfoFrame)
+ */
+ infopacket->hb1 = DC_HDMI_INFOFRAME_TYPE_SPD;
+
+ /* HB2 = [Bits 7:0 = Least significant eight bits -
+ * For INFOFRAME, the value must be 1Bh]
+ */
+ infopacket->hb2 = 0x1B;
+
+ /* HB3 = [Bits 7:2 = INFOFRAME SDP Version Number = 0x2]
+ * [Bits 1:0 = Most significant two bits = 0x00]
+ */
+ infopacket->hb3 = 0x08;
+
+ *payload_size = 0x1B;
+ }
+}
+
+static void build_vrr_infopacket_data(const struct mod_vrr_params *vrr,
+ struct dc_info_packet *infopacket)
+{
/* PB1 = 0x1A (24bit AMD IEEE OUI (0x00001A) - Byte 0) */
infopacket->sb[1] = 0x1A;
*/
infopacket->sb[8] = (unsigned char)(vrr->max_refresh_in_uhz / 1000000);
- /* PB9 - PB27 = Reserved */
+ //FreeSync HDR
+ infopacket->sb[9] = 0;
+ infopacket->sb[10] = 0;
+}
+
+static void build_vrr_infopacket_fs2_data(enum color_transfer_func app_tf,
+ struct dc_info_packet *infopacket)
+{
+ if (app_tf != transfer_func_unknown) {
+ infopacket->valid = true;
+
+ infopacket->sb[6] |= 0x08; // PB6 = [Bit 3 = Native Color Active]
+
+ if (app_tf == transfer_func_gamma_22) {
+ infopacket->sb[9] |= 0x04; // PB6 = [Bit 2 = Gamma 2.2 EOTF Active]
+ }
+ }
+}
+
+static void build_vrr_infopacket_checksum(unsigned int *payload_size,
+ struct dc_info_packet *infopacket)
+{
/* Calculate checksum */
+ unsigned int idx = 0;
+ unsigned char checksum = 0;
+
checksum += infopacket->hb0;
checksum += infopacket->hb1;
checksum += infopacket->hb2;
checksum += infopacket->hb3;
- for (idx = 1; idx <= payload_size; idx++)
+ for (idx = 1; idx <= *payload_size; idx++)
checksum += infopacket->sb[idx];
/* PB0 = Checksum (one byte complement) */
infopacket->valid = true;
}
+static void build_vrr_infopacket_v1(enum signal_type signal,
+ const struct mod_vrr_params *vrr,
+ struct dc_info_packet *infopacket)
+{
+ /* SPD info packet for FreeSync */
+ unsigned int payload_size = 0;
+
+ build_vrr_infopacket_header_v1(signal, infopacket, &payload_size);
+ build_vrr_infopacket_data(vrr, infopacket);
+ build_vrr_infopacket_checksum(&payload_size, infopacket);
+
+ infopacket->valid = true;
+}
+
+static void build_vrr_infopacket_v2(enum signal_type signal,
+ const struct mod_vrr_params *vrr,
+ const enum color_transfer_func *app_tf,
+ struct dc_info_packet *infopacket)
+{
+ unsigned int payload_size = 0;
+
+ build_vrr_infopacket_header_v2(signal, infopacket, &payload_size);
+ build_vrr_infopacket_data(vrr, infopacket);
+
+ if (app_tf != NULL)
+ build_vrr_infopacket_fs2_data(*app_tf, infopacket);
+
+ build_vrr_infopacket_checksum(&payload_size, infopacket);
+
+ infopacket->valid = true;
+}
+
+void mod_freesync_build_vrr_infopacket(struct mod_freesync *mod_freesync,
+ const struct dc_stream_state *stream,
+ const struct mod_vrr_params *vrr,
+ enum vrr_packet_type packet_type,
+ const enum color_transfer_func *app_tf,
+ struct dc_info_packet *infopacket)
+{
+ /* SPD info packet for FreeSync */
+
+ /* Check if Freesync is supported. Return if false. If true,
+ * set the corresponding bit in the info packet
+ */
+ if (!vrr->supported || !vrr->send_vsif)
+ return;
+
+ switch (packet_type) {
+ case packet_type_fs2:
+ build_vrr_infopacket_v2(stream->signal, vrr, app_tf, infopacket);
+ break;
+ case packet_type_vrr:
+ case packet_type_fs1:
+ default:
+ build_vrr_infopacket_v1(stream->signal, vrr, infopacket);
+ }
+}
+
void mod_freesync_build_vrr_params(struct mod_freesync *mod_freesync,
const struct dc_stream_state *stream,
struct mod_freesync_config *in_config,
--- /dev/null
+/*
+ * Copyright 2016 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+
+#ifndef MOD_SHARED_H_
+#define MOD_SHARED_H_
+
+enum color_transfer_func {
+ transfer_func_unknown,
+ transfer_func_srgb,
+ transfer_func_bt709,
+ transfer_func_pq2084,
+ transfer_func_pq2084_interim,
+ transfer_func_linear_0_1,
+ transfer_func_linear_0_125,
+ transfer_func_dolbyvision,
+ transfer_func_gamma_22,
+ transfer_func_gamma_26
+};
+
+enum vrr_packet_type {
+ packet_type_vrr,
+ packet_type_fs1,
+ packet_type_fs2
+};
+
+#endif /* MOD_SHARED_H_ */
projects / linux.git / commitdiff