[PATCH 05/23] drm/amd/display: Add SelectCRTC_Source to BIOS parser

["Timur Kristóf" <timur.kristof@gmail.com>]

The SelectCRTC_Source command will be used to change which CRTC
should be connected to which encoder.

For reference, see the legacy display code:
amdgpu_atombios_encoder_set_crtc_source

Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
---
 .../gpu/drm/amd/display/dc/bios/bios_parser.c |  14 ++
 .../drm/amd/display/dc/bios/command_table.c   | 194 ++++++++++++++++++
 .../drm/amd/display/dc/bios/command_table.h   |   3 +
 .../gpu/drm/amd/display/dc/dc_bios_types.h    |   3 +
 .../amd/display/include/bios_parser_types.h   |   6 +-
 5 files changed, 215 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/bios/bios_parser.c b/drivers/gpu/drm/amd/display/dc/bios/bios_parser.c
index 318be0bb5549..c7875edea321 100644
--- a/drivers/gpu/drm/amd/display/dc/bios/bios_parser.c
+++ b/drivers/gpu/drm/amd/display/dc/bios/bios_parser.c
@@ -736,6 +736,18 @@ static enum bp_result bios_parser_transmitter_control(
 	return bp->cmd_tbl.transmitter_control(bp, cntl);
 }
 
+static enum bp_result bios_parser_select_crtc_source(
+	struct dc_bios *dcb,
+	struct bp_crtc_source_select *bp_params)
+{
+	struct bios_parser *bp = BP_FROM_DCB(dcb);
+
+	if (!bp->cmd_tbl.select_crtc_source)
+		return BP_RESULT_FAILURE;
+
+	return bp->cmd_tbl.select_crtc_source(bp, bp_params);
+}
+
 static enum bp_result bios_parser_encoder_control(
 	struct dc_bios *dcb,
 	struct bp_encoder_control *cntl)
@@ -2845,6 +2857,8 @@ static const struct dc_vbios_funcs vbios_funcs = {
 	.is_device_id_supported = bios_parser_is_device_id_supported,
 
 	/* COMMANDS */
+	.select_crtc_source = bios_parser_select_crtc_source,
+
 	.encoder_control = bios_parser_encoder_control,
 
 	.transmitter_control = bios_parser_transmitter_control,
diff --git a/drivers/gpu/drm/amd/display/dc/bios/command_table.c b/drivers/gpu/drm/amd/display/dc/bios/command_table.c
index 58e88778da7f..dbd84477ceb7 100644
--- a/drivers/gpu/drm/amd/display/dc/bios/command_table.c
+++ b/drivers/gpu/drm/amd/display/dc/bios/command_table.c
@@ -52,6 +52,7 @@ static void init_transmitter_control(struct bios_parser *bp);
 static void init_set_pixel_clock(struct bios_parser *bp);
 static void init_enable_spread_spectrum_on_ppll(struct bios_parser *bp);
 static void init_adjust_display_pll(struct bios_parser *bp);
+static void init_select_crtc_source(struct bios_parser *bp);
 static void init_dac_encoder_control(struct bios_parser *bp);
 static void init_dac_output_control(struct bios_parser *bp);
 static void init_set_crtc_timing(struct bios_parser *bp);
@@ -69,6 +70,7 @@ void dal_bios_parser_init_cmd_tbl(struct bios_parser *bp)
 	init_set_pixel_clock(bp);
 	init_enable_spread_spectrum_on_ppll(bp);
 	init_adjust_display_pll(bp);
+	init_select_crtc_source(bp);
 	init_dac_encoder_control(bp);
 	init_dac_output_control(bp);
 	init_set_crtc_timing(bp);
@@ -1609,6 +1611,198 @@ static enum bp_result adjust_display_pll_v3(
 	return result;
 }
 
+/*******************************************************************************
+ ********************************************************************************
+ **
+ **                  SELECT CRTC SOURCE
+ **
+ ********************************************************************************
+ *******************************************************************************/
+
+static enum bp_result select_crtc_source_v1(
+	struct bios_parser *bp,
+	struct bp_crtc_source_select *bp_params);
+static enum bp_result select_crtc_source_v2(
+	struct bios_parser *bp,
+	struct bp_crtc_source_select *bp_params);
+static enum bp_result select_crtc_source_v3(
+	struct bios_parser *bp,
+	struct bp_crtc_source_select *bp_params);
+
+static void init_select_crtc_source(struct bios_parser *bp)
+{
+	switch (BIOS_CMD_TABLE_PARA_REVISION(SelectCRTC_Source)) {
+	case 1:
+		bp->cmd_tbl.select_crtc_source = select_crtc_source_v1;
+		break;
+	case 2:
+		bp->cmd_tbl.select_crtc_source = select_crtc_source_v2;
+		break;
+	case 3:
+		bp->cmd_tbl.select_crtc_source = select_crtc_source_v3;
+		break;
+	default:
+		bp->cmd_tbl.select_crtc_source = NULL;
+		break;
+	}
+}
+
+static enum bp_result select_crtc_source_v1(
+	struct bios_parser *bp,
+	struct bp_crtc_source_select *bp_params)
+{
+	enum bp_result result = BP_RESULT_FAILURE;
+	SELECT_CRTC_SOURCE_PS_ALLOCATION params;
+
+	if (!bp->cmd_helper->controller_id_to_atom(bp_params->controller_id, &params.ucCRTC))
+		return BP_RESULT_BADINPUT;
+
+	switch (bp_params->engine_id) {
+	case ENGINE_ID_DACA:
+		params.ucDevice = ATOM_DEVICE_CRT1_INDEX;
+		break;
+	case ENGINE_ID_DACB:
+		params.ucDevice = ATOM_DEVICE_CRT2_INDEX;
+		break;
+	default:
+		return BP_RESULT_BADINPUT;
+	}
+
+	if (EXEC_BIOS_CMD_TABLE(SelectCRTC_Source, params))
+		result = BP_RESULT_OK;
+
+	return result;
+}
+
+static bool select_crtc_source_v2_encoder_id(
+	enum engine_id engine_id, uint8_t *out_encoder_id)
+{
+	uint8_t encoder_id = 0;
+
+	switch (engine_id) {
+	case ENGINE_ID_DIGA:
+		encoder_id = ASIC_INT_DIG1_ENCODER_ID;
+		break;
+	case ENGINE_ID_DIGB:
+		encoder_id = ASIC_INT_DIG2_ENCODER_ID;
+		break;
+	case ENGINE_ID_DIGC:
+		encoder_id = ASIC_INT_DIG3_ENCODER_ID;
+		break;
+	case ENGINE_ID_DIGD:
+		encoder_id = ASIC_INT_DIG4_ENCODER_ID;
+		break;
+	case ENGINE_ID_DIGE:
+		encoder_id = ASIC_INT_DIG5_ENCODER_ID;
+		break;
+	case ENGINE_ID_DIGF:
+		encoder_id = ASIC_INT_DIG6_ENCODER_ID;
+		break;
+	case ENGINE_ID_DIGG:
+		encoder_id = ASIC_INT_DIG7_ENCODER_ID;
+		break;
+	case ENGINE_ID_DACA:
+		encoder_id = ASIC_INT_DAC1_ENCODER_ID;
+		break;
+	case ENGINE_ID_DACB:
+		encoder_id = ASIC_INT_DAC2_ENCODER_ID;
+		break;
+	default:
+		return false;
+	}
+
+	*out_encoder_id = encoder_id;
+	return true;
+}
+
+static bool select_crtc_source_v2_encoder_mode(
+	enum signal_type signal_type, uint8_t *out_encoder_mode)
+{
+	uint8_t encoder_mode = 0;
+
+	switch (signal_type) {
+	case SIGNAL_TYPE_DVI_SINGLE_LINK:
+	case SIGNAL_TYPE_DVI_DUAL_LINK:
+		encoder_mode = ATOM_ENCODER_MODE_DVI;
+		break;
+	case SIGNAL_TYPE_HDMI_TYPE_A:
+		encoder_mode = ATOM_ENCODER_MODE_HDMI;
+		break;
+	case SIGNAL_TYPE_LVDS:
+		encoder_mode = ATOM_ENCODER_MODE_LVDS;
+		break;
+	case SIGNAL_TYPE_RGB:
+		encoder_mode = ATOM_ENCODER_MODE_CRT;
+		break;
+	case SIGNAL_TYPE_DISPLAY_PORT:
+		encoder_mode = ATOM_ENCODER_MODE_DP;
+		break;
+	case SIGNAL_TYPE_DISPLAY_PORT_MST:
+		encoder_mode = ATOM_ENCODER_MODE_DP_MST;
+		break;
+	case SIGNAL_TYPE_EDP:
+		encoder_mode = ATOM_ENCODER_MODE_DP;
+		break;
+	default:
+		return false;
+	}
+
+	*out_encoder_mode = encoder_mode;
+	return true;
+}
+
+static enum bp_result select_crtc_source_v2(
+	struct bios_parser *bp,
+	struct bp_crtc_source_select *bp_params)
+{
+	enum bp_result result = BP_RESULT_FAILURE;
+	SELECT_CRTC_SOURCE_PARAMETERS_V3 params;
+
+	if (!bp->cmd_helper->controller_id_to_atom(bp_params->controller_id, &params.ucCRTC))
+		return BP_RESULT_BADINPUT;
+
+	if (!select_crtc_source_v2_encoder_id(
+		bp_params->engine_id,
+		&params.ucEncoderID))
+		return BP_RESULT_BADINPUT;
+	if (!select_crtc_source_v2_encoder_mode(
+		bp_params->sink_signal,
+		&params.ucEncodeMode))
+		return BP_RESULT_BADINPUT;
+
+	if (EXEC_BIOS_CMD_TABLE(SelectCRTC_Source, params))
+		result = BP_RESULT_OK;
+
+	return result;
+}
+
+static enum bp_result select_crtc_source_v3(
+	struct bios_parser *bp,
+	struct bp_crtc_source_select *bp_params)
+{
+	enum bp_result result = BP_RESULT_FAILURE;
+	SELECT_CRTC_SOURCE_PARAMETERS_V3 params;
+
+	if (!bp->cmd_helper->controller_id_to_atom(bp_params->controller_id, &params.ucCRTC))
+		return BP_RESULT_BADINPUT;
+
+	if (!select_crtc_source_v2_encoder_id(
+		bp_params->engine_id,
+		&params.ucEncoderID))
+		return BP_RESULT_BADINPUT;
+	if (!select_crtc_source_v2_encoder_mode(
+		bp_params->sink_signal,
+		&params.ucEncodeMode))
+		return BP_RESULT_BADINPUT;
+
+	params.ucDstBpc = bp_params->bit_depth;
+
+	if (EXEC_BIOS_CMD_TABLE(SelectCRTC_Source, params))
+		result = BP_RESULT_OK;
+
+	return result;
+}
+
 /*******************************************************************************
  ********************************************************************************
  **
diff --git a/drivers/gpu/drm/amd/display/dc/bios/command_table.h b/drivers/gpu/drm/amd/display/dc/bios/command_table.h
index ad533775e724..8b04b903e93d 100644
--- a/drivers/gpu/drm/amd/display/dc/bios/command_table.h
+++ b/drivers/gpu/drm/amd/display/dc/bios/command_table.h
@@ -52,6 +52,9 @@ struct cmd_tbl {
 	enum bp_result (*adjust_display_pll)(
 		struct bios_parser *bp,
 		struct bp_adjust_pixel_clock_parameters *bp_params);
+	enum bp_result (*select_crtc_source)(
+		struct bios_parser *bp,
+		struct bp_crtc_source_select *bp_params);
 	enum bp_result (*dac1_encoder_control)(
 		struct bios_parser *bp,
 		bool enable,
diff --git a/drivers/gpu/drm/amd/display/dc/dc_bios_types.h b/drivers/gpu/drm/amd/display/dc/dc_bios_types.h
index 5fa5e2b63fb7..545ce1e15eae 100644
--- a/drivers/gpu/drm/amd/display/dc/dc_bios_types.h
+++ b/drivers/gpu/drm/amd/display/dc/dc_bios_types.h
@@ -91,6 +91,9 @@ struct dc_vbios_funcs {
 		struct device_id id);
 	/* COMMANDS */
 
+	enum bp_result (*select_crtc_source)(
+		struct dc_bios *bios,
+		struct bp_crtc_source_select *bp_params);
 	enum bp_result (*encoder_control)(
 		struct dc_bios *bios,
 		struct bp_encoder_control *cntl);
diff --git a/drivers/gpu/drm/amd/display/include/bios_parser_types.h b/drivers/gpu/drm/amd/display/include/bios_parser_types.h
index 812377d9e48f..d9e58a6a0d36 100644
--- a/drivers/gpu/drm/amd/display/include/bios_parser_types.h
+++ b/drivers/gpu/drm/amd/display/include/bios_parser_types.h
@@ -135,12 +135,8 @@ struct bp_external_encoder_control {
 struct bp_crtc_source_select {
 	enum engine_id engine_id;
 	enum controller_id controller_id;
-	/* from GPU Tx aka asic_signal */
-	enum signal_type signal;
-	/* sink_signal may differ from asicSignal if Translator encoder */
 	enum signal_type sink_signal;
-	enum display_output_bit_depth display_output_bit_depth;
-	bool enable_dp_audio;
+	uint8_t bit_depth;
 };
 
 struct bp_transmitter_control {
-- 
2.51.0