xref: /openbmc/linux/drivers/gpu/drm/amd/display/dc/bios/command_table_helper.c (revision 920e2f5a)

/*
 * Copyright 2012-15 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
 *
 */

#include "dm_services.h"

#include "atom.h"

#include "include/bios_parser_types.h"

#include "command_table_helper.h"

bool dal_bios_parser_init_cmd_tbl_helper(
	const struct command_table_helper **h,
	enum dce_version dce)
{
	switch (dce) {
#if defined(CONFIG_DRM_AMD_DC_SI)
	case DCE_VERSION_6_0:
	case DCE_VERSION_6_1:
	case DCE_VERSION_6_4:
		*h = dal_cmd_tbl_helper_dce60_get_table();
		return true;
#endif

	case DCE_VERSION_8_0:
	case DCE_VERSION_8_1:
	case DCE_VERSION_8_3:
		*h = dal_cmd_tbl_helper_dce80_get_table();
		return true;

	case DCE_VERSION_10_0:
		*h = dal_cmd_tbl_helper_dce110_get_table();
		return true;

	case DCE_VERSION_11_0:
		*h = dal_cmd_tbl_helper_dce110_get_table();
		return true;

	case DCE_VERSION_11_2:
	case DCE_VERSION_11_22:
		*h = dal_cmd_tbl_helper_dce112_get_table();
		return true;

	default:
		/* Unsupported DCE */
		BREAK_TO_DEBUGGER();
		return false;
	}
}

/* real implementations */

bool dal_cmd_table_helper_controller_id_to_atom(
	enum controller_id id,
	uint8_t *atom_id)
{
	if (atom_id == NULL) {
		BREAK_TO_DEBUGGER();
		return false;
	}

	switch (id) {
	case CONTROLLER_ID_D0:
		*atom_id = ATOM_CRTC1;
		return true;
	case CONTROLLER_ID_D1:
		*atom_id = ATOM_CRTC2;
		return true;
	case CONTROLLER_ID_D2:
		*atom_id = ATOM_CRTC3;
		return true;
	case CONTROLLER_ID_D3:
		*atom_id = ATOM_CRTC4;
		return true;
	case CONTROLLER_ID_D4:
		*atom_id = ATOM_CRTC5;
		return true;
	case CONTROLLER_ID_D5:
		*atom_id = ATOM_CRTC6;
		return true;
	case CONTROLLER_ID_UNDERLAY0:
		*atom_id = ATOM_UNDERLAY_PIPE0;
		return true;
	case CONTROLLER_ID_UNDEFINED:
		*atom_id = ATOM_CRTC_INVALID;
		return true;
	default:
		/* Wrong controller id */
		BREAK_TO_DEBUGGER();
		return false;
	}
}

/**
 * dal_cmd_table_helper_transmitter_bp_to_atom - Translate the Transmitter to the
 *                                    corresponding ATOM BIOS value
 * @t: transmitter
 * returns: output digitalTransmitter
 *    // =00: Digital Transmitter1 ( UNIPHY linkAB )
 *    // =01: Digital Transmitter2 ( UNIPHY linkCD )
 *    // =02: Digital Transmitter3 ( UNIPHY linkEF )
 */
uint8_t dal_cmd_table_helper_transmitter_bp_to_atom(
	enum transmitter t)
{
	switch (t) {
	case TRANSMITTER_UNIPHY_A:
	case TRANSMITTER_UNIPHY_B:
	case TRANSMITTER_TRAVIS_LCD:
		return 0;
	case TRANSMITTER_UNIPHY_C:
	case TRANSMITTER_UNIPHY_D:
		return 1;
	case TRANSMITTER_UNIPHY_E:
	case TRANSMITTER_UNIPHY_F:
		return 2;
	default:
		/* Invalid Transmitter Type! */
		BREAK_TO_DEBUGGER();
		return 0;
	}
}

uint32_t dal_cmd_table_helper_encoder_mode_bp_to_atom(
	enum signal_type s,
	bool enable_dp_audio)
{
	switch (s) {
	case SIGNAL_TYPE_DVI_SINGLE_LINK:
	case SIGNAL_TYPE_DVI_DUAL_LINK:
		return ATOM_ENCODER_MODE_DVI;
	case SIGNAL_TYPE_HDMI_TYPE_A:
		return ATOM_ENCODER_MODE_HDMI;
	case SIGNAL_TYPE_LVDS:
		return ATOM_ENCODER_MODE_LVDS;
	case SIGNAL_TYPE_EDP:
	case SIGNAL_TYPE_DISPLAY_PORT_MST:
	case SIGNAL_TYPE_DISPLAY_PORT:
	case SIGNAL_TYPE_VIRTUAL:
		if (enable_dp_audio)
			return ATOM_ENCODER_MODE_DP_AUDIO;
		else
			return ATOM_ENCODER_MODE_DP;
	case SIGNAL_TYPE_RGB:
		return ATOM_ENCODER_MODE_CRT;
	default:
		return ATOM_ENCODER_MODE_CRT;
	}
}

void dal_cmd_table_helper_assign_control_parameter(
	const struct command_table_helper *h,
	struct bp_encoder_control *control,
	DIG_ENCODER_CONTROL_PARAMETERS_V2 *ctrl_param)
{
	/* there are three transmitter blocks, each one has two links 4-lanes
	 * each, A+B, C+D, E+F, Uniphy A, C and E are enumerated as link 0 in
	 * each transmitter block B, D and F as link 1, third transmitter block
	 * has non splitable links (UniphyE and UniphyF can not be configured
	 * separately to drive two different streams)
	 */
	if ((control->transmitter == TRANSMITTER_UNIPHY_B) ||
		(control->transmitter == TRANSMITTER_UNIPHY_D) ||
		(control->transmitter == TRANSMITTER_UNIPHY_F)) {
		/* Bit2: Link Select
		 * =0: PHY linkA/C/E
		 * =1: PHY linkB/D/F
		 */
		ctrl_param->acConfig.ucLinkSel = 1;
	}

	/* Bit[4:3]: Transmitter Selection
	 * =00: Digital Transmitter1 ( UNIPHY linkAB )
	 * =01: Digital Transmitter2 ( UNIPHY linkCD )
	 * =02: Digital Transmitter3 ( UNIPHY linkEF )
	 * =03: Reserved
	 */
	ctrl_param->acConfig.ucTransmitterSel =
		(uint8_t)(h->transmitter_bp_to_atom(control->transmitter));

	/* We need to convert from KHz units into 10KHz units */
	ctrl_param->ucAction = h->encoder_action_to_atom(control->action);
	ctrl_param->usPixelClock = cpu_to_le16((uint16_t)(control->pixel_clock / 10));
	ctrl_param->ucEncoderMode =
		(uint8_t)(h->encoder_mode_bp_to_atom(
			control->signal, control->enable_dp_audio));
	ctrl_param->ucLaneNum = (uint8_t)(control->lanes_number);
}

bool dal_cmd_table_helper_clock_source_id_to_ref_clk_src(
	enum clock_source_id id,
	uint32_t *ref_clk_src_id)
{
	if (ref_clk_src_id == NULL) {
		BREAK_TO_DEBUGGER();
		return false;
	}

	switch (id) {
	case CLOCK_SOURCE_ID_PLL1:
		*ref_clk_src_id = ENCODER_REFCLK_SRC_P1PLL;
		return true;
	case CLOCK_SOURCE_ID_PLL2:
		*ref_clk_src_id = ENCODER_REFCLK_SRC_P2PLL;
		return true;
	case CLOCK_SOURCE_ID_DCPLL:
		*ref_clk_src_id = ENCODER_REFCLK_SRC_DCPLL;
		return true;
	case CLOCK_SOURCE_ID_EXTERNAL:
		*ref_clk_src_id = ENCODER_REFCLK_SRC_EXTCLK;
		return true;
	case CLOCK_SOURCE_ID_UNDEFINED:
		*ref_clk_src_id = ENCODER_REFCLK_SRC_INVALID;
		return true;
	default:
		/* Unsupported clock source id */
		BREAK_TO_DEBUGGER();
		return false;
	}
}

uint8_t dal_cmd_table_helper_encoder_id_to_atom(
	enum encoder_id id)
{
	switch (id) {
	case ENCODER_ID_INTERNAL_LVDS:
		return ENCODER_OBJECT_ID_INTERNAL_LVDS;
	case ENCODER_ID_INTERNAL_TMDS1:
		return ENCODER_OBJECT_ID_INTERNAL_TMDS1;
	case ENCODER_ID_INTERNAL_TMDS2:
		return ENCODER_OBJECT_ID_INTERNAL_TMDS2;
	case ENCODER_ID_INTERNAL_DAC1:
		return ENCODER_OBJECT_ID_INTERNAL_DAC1;
	case ENCODER_ID_INTERNAL_DAC2:
		return ENCODER_OBJECT_ID_INTERNAL_DAC2;
	case ENCODER_ID_INTERNAL_LVTM1:
		return ENCODER_OBJECT_ID_INTERNAL_LVTM1;
	case ENCODER_ID_INTERNAL_HDMI:
		return ENCODER_OBJECT_ID_HDMI_INTERNAL;
	case ENCODER_ID_EXTERNAL_TRAVIS:
		return ENCODER_OBJECT_ID_TRAVIS;
	case ENCODER_ID_EXTERNAL_NUTMEG:
		return ENCODER_OBJECT_ID_NUTMEG;
	case ENCODER_ID_INTERNAL_KLDSCP_TMDS1:
		return ENCODER_OBJECT_ID_INTERNAL_KLDSCP_TMDS1;
	case ENCODER_ID_INTERNAL_KLDSCP_DAC1:
		return ENCODER_OBJECT_ID_INTERNAL_KLDSCP_DAC1;
	case ENCODER_ID_INTERNAL_KLDSCP_DAC2:
		return ENCODER_OBJECT_ID_INTERNAL_KLDSCP_DAC2;
	case ENCODER_ID_EXTERNAL_MVPU_FPGA:
		return ENCODER_OBJECT_ID_MVPU_FPGA;
	case ENCODER_ID_INTERNAL_DDI:
		return ENCODER_OBJECT_ID_INTERNAL_DDI;
	case ENCODER_ID_INTERNAL_UNIPHY:
		return ENCODER_OBJECT_ID_INTERNAL_UNIPHY;
	case ENCODER_ID_INTERNAL_KLDSCP_LVTMA:
		return ENCODER_OBJECT_ID_INTERNAL_KLDSCP_LVTMA;
	case ENCODER_ID_INTERNAL_UNIPHY1:
		return ENCODER_OBJECT_ID_INTERNAL_UNIPHY1;
	case ENCODER_ID_INTERNAL_UNIPHY2:
		return ENCODER_OBJECT_ID_INTERNAL_UNIPHY2;
	case ENCODER_ID_INTERNAL_UNIPHY3:
		return ENCODER_OBJECT_ID_INTERNAL_UNIPHY3;
	case ENCODER_ID_INTERNAL_WIRELESS:
		return ENCODER_OBJECT_ID_INTERNAL_VCE;
	case ENCODER_ID_UNKNOWN:
		return ENCODER_OBJECT_ID_NONE;
	default:
		/* Invalid encoder id */
		BREAK_TO_DEBUGGER();
		return ENCODER_OBJECT_ID_NONE;
	}
}