/*
 * Copyright 2012-14 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 DC_STREAM_H_
#define DC_STREAM_H_

#include "dc_types.h"
#include "grph_object_defs.h"

/*******************************************************************************
 * Stream Interfaces
 ******************************************************************************/
struct timing_sync_info {
	int group_id;
	int group_size;
	bool master;
};

struct dc_stream_status {
	int primary_otg_inst;
	int stream_enc_inst;
	int plane_count;
	int audio_inst;
	struct timing_sync_info timing_sync_info;
	struct dc_plane_state *plane_states[MAX_SURFACE_NUM];
	bool is_abm_supported;
};

// TODO: References to this needs to be removed..
struct freesync_context {
	bool dummy;
};

enum hubp_dmdata_mode {
	DMDATA_SW_MODE,
	DMDATA_HW_MODE
};

struct dc_dmdata_attributes {
	/* Specifies whether dynamic meta data will be updated by software
	 * or has to be fetched by hardware (DMA mode)
	 */
	enum hubp_dmdata_mode dmdata_mode;
	/* Specifies if current dynamic meta data is to be used only for the current frame */
	bool dmdata_repeat;
	/* Specifies the size of Dynamic Metadata surface in byte.  Size of 0 means no Dynamic metadata is fetched */
	uint32_t dmdata_size;
	/* Specifies if a new dynamic meta data should be fetched for an upcoming frame */
	bool dmdata_updated;
	/* If hardware mode is used, the base address where DMDATA surface is located */
	PHYSICAL_ADDRESS_LOC address;
	/* Specifies whether QOS level will be provided by TTU or it will come from DMDATA_QOS_LEVEL */
	bool dmdata_qos_mode;
	/* If qos_mode = 1, this is the QOS value to be used: */
	uint32_t dmdata_qos_level;
	/* Specifies the value in unit of REFCLK cycles to be added to the
	 * current time to produce the Amortized deadline for Dynamic Metadata chunk request
	 */
	uint32_t dmdata_dl_delta;
	/* An unbounded array of uint32s, represents software dmdata to be loaded */
	uint32_t *dmdata_sw_data;
};

struct dc_writeback_info {
	bool wb_enabled;
	int dwb_pipe_inst;
	struct dc_dwb_params dwb_params;
	struct mcif_buf_params mcif_buf_params;
	struct mcif_warmup_params mcif_warmup_params;
	/* the plane that is the input to TOP_MUX for MPCC that is the DWB source */
	struct dc_plane_state *writeback_source_plane;
	/* source MPCC instance.  for use by internally by dc */
	int mpcc_inst;
};

struct dc_writeback_update {
	unsigned int num_wb_info;
	struct dc_writeback_info writeback_info[MAX_DWB_PIPES];
};

enum vertical_interrupt_ref_point {
	START_V_UPDATE = 0,
	START_V_SYNC,
	INVALID_POINT

	//For now, only v_update interrupt is used.
	//START_V_BLANK,
	//START_V_ACTIVE
};

struct periodic_interrupt_config {
	enum vertical_interrupt_ref_point ref_point;
	int lines_offset;
};

#if defined(CONFIG_DRM_AMD_DC_DCN)
struct dc_mst_stream_bw_update {
	bool is_increase; // is bandwidth reduced or increased
	uint32_t mst_stream_bw; // new mst bandwidth in kbps
};
#endif

union stream_update_flags {
	struct {
		uint32_t scaling:1;
		uint32_t out_tf:1;
		uint32_t out_csc:1;
		uint32_t abm_level:1;
		uint32_t dpms_off:1;
		uint32_t gamut_remap:1;
		uint32_t wb_update:1;
		uint32_t dsc_changed : 1;
#if defined(CONFIG_DRM_AMD_DC_DCN)
		uint32_t mst_bw : 1;
#endif
	} bits;

	uint32_t raw;
};

struct test_pattern {
	enum dp_test_pattern type;
	enum dp_test_pattern_color_space color_space;
	struct link_training_settings const *p_link_settings;
	unsigned char const *p_custom_pattern;
	unsigned int cust_pattern_size;
};

struct dc_stream_state {
	// sink is deprecated, new code should not reference
	// this pointer
	struct dc_sink *sink;

	struct dc_link *link;
	/* For dynamic link encoder assignment, update the link encoder assigned to
	 * a stream via the volatile dc_state rather than the static dc_link.
	 */
	struct link_encoder *link_enc;
	struct dc_panel_patch sink_patches;
	union display_content_support content_support;
	struct dc_crtc_timing timing;
	struct dc_crtc_timing_adjust adjust;
	struct dc_info_packet vrr_infopacket;
	struct dc_info_packet vsc_infopacket;
	struct dc_info_packet vsp_infopacket;

	struct rect src; /* composition area */
	struct rect dst; /* stream addressable area */

	// TODO: References to this needs to be removed..
	struct freesync_context freesync_ctx;

	struct audio_info audio_info;

	struct dc_info_packet hdr_static_metadata;
	PHYSICAL_ADDRESS_LOC dmdata_address;
	bool   use_dynamic_meta;

	struct dc_transfer_func *out_transfer_func;
	struct colorspace_transform gamut_remap_matrix;
	struct dc_csc_transform csc_color_matrix;

	enum dc_color_space output_color_space;
	enum dc_dither_option dither_option;

	enum view_3d_format view_format;

	bool use_vsc_sdp_for_colorimetry;
	bool ignore_msa_timing_param;

	bool freesync_on_desktop;

	bool converter_disable_audio;
	uint8_t qs_bit;
	uint8_t qy_bit;

	/* TODO: custom INFO packets */
	/* TODO: ABM info (DMCU) */
	/* TODO: CEA VIC */

	/* DMCU info */
	unsigned int abm_level;

	struct periodic_interrupt_config periodic_interrupt0;
	struct periodic_interrupt_config periodic_interrupt1;

	/* from core_stream struct */
	struct dc_context *ctx;

	/* used by DCP and FMT */
	struct bit_depth_reduction_params bit_depth_params;
	struct clamping_and_pixel_encoding_params clamping;

	int phy_pix_clk;
	enum signal_type signal;
	bool dpms_off;

	void *dm_stream_context;

	struct dc_cursor_attributes cursor_attributes;
	struct dc_cursor_position cursor_position;
	uint32_t sdr_white_level; // for boosting (SDR) cursor in HDR mode

	/* from stream struct */
	struct kref refcount;

	struct crtc_trigger_info triggered_crtc_reset;

	/* writeback */
	unsigned int num_wb_info;
	struct dc_writeback_info writeback_info[MAX_DWB_PIPES];
	const struct dc_transfer_func *func_shaper;
	const struct dc_3dlut *lut3d_func;
	/* Computed state bits */
	bool mode_changed : 1;

	/* Output from DC when stream state is committed or altered
	 * DC may only access these values during:
	 * dc_commit_state, dc_commit_state_no_check, dc_commit_streams
	 * values may not change outside of those calls
	 */
	struct {
		// For interrupt management, some hardware instance
		// offsets need to be exposed to DM
		uint8_t otg_offset;
	} out;

	bool apply_edp_fast_boot_optimization;
	bool apply_seamless_boot_optimization;

	uint32_t stream_id;

	struct test_pattern test_pattern;
	union stream_update_flags update_flags;

	bool has_non_synchronizable_pclk;
	bool vblank_synchronized;
};

#define ABM_LEVEL_IMMEDIATE_DISABLE 255

struct dc_stream_update {
	struct dc_stream_state *stream;

	struct rect src;
	struct rect dst;
	struct dc_transfer_func *out_transfer_func;
	struct dc_info_packet *hdr_static_metadata;
	unsigned int *abm_level;

	struct periodic_interrupt_config *periodic_interrupt0;
	struct periodic_interrupt_config *periodic_interrupt1;

	struct dc_info_packet *vrr_infopacket;
	struct dc_info_packet *vsc_infopacket;
	struct dc_info_packet *vsp_infopacket;

	bool *dpms_off;
	bool integer_scaling_update;

	struct colorspace_transform *gamut_remap;
	enum dc_color_space *output_color_space;
	enum dc_dither_option *dither_option;

	struct dc_csc_transform *output_csc_transform;

	struct dc_writeback_update *wb_update;
	struct dc_dsc_config *dsc_config;
#if defined(CONFIG_DRM_AMD_DC_DCN)
	struct dc_mst_stream_bw_update *mst_bw_update;
#endif
	struct dc_transfer_func *func_shaper;
	struct dc_3dlut *lut3d_func;

	struct test_pattern *pending_test_pattern;
};

bool dc_is_stream_unchanged(
	struct dc_stream_state *old_stream, struct dc_stream_state *stream);
bool dc_is_stream_scaling_unchanged(
	struct dc_stream_state *old_stream, struct dc_stream_state *stream);

/*
 * Set up surface attributes and associate to a stream
 * The surfaces parameter is an absolute set of all surface active for the stream.
 * If no surfaces are provided, the stream will be blanked; no memory read.
 * Any flip related attribute changes must be done through this interface.
 *
 * After this call:
 *   Surfaces attributes are programmed and configured to be composed into stream.
 *   This does not trigger a flip.  No surface address is programmed.
 */

void dc_commit_updates_for_stream(struct dc *dc,
		struct dc_surface_update *srf_updates,
		int surface_count,
		struct dc_stream_state *stream,
		struct dc_stream_update *stream_update,
		struct dc_state *state);
/*
 * Log the current stream state.
 */
void dc_stream_log(const struct dc *dc, const struct dc_stream_state *stream);

uint8_t dc_get_current_stream_count(struct dc *dc);
struct dc_stream_state *dc_get_stream_at_index(struct dc *dc, uint8_t i);
struct dc_stream_state *dc_stream_find_from_link(const struct dc_link *link);

/*
 * Return the current frame counter.
 */
uint32_t dc_stream_get_vblank_counter(const struct dc_stream_state *stream);

/*
 * Send dp sdp message.
 */
bool dc_stream_send_dp_sdp(const struct dc_stream_state *stream,
		const uint8_t *custom_sdp_message,
		unsigned int sdp_message_size);

/* TODO: Return parsed values rather than direct register read
 * This has a dependency on the caller (amdgpu_display_get_crtc_scanoutpos)
 * being refactored properly to be dce-specific
 */
bool dc_stream_get_scanoutpos(const struct dc_stream_state *stream,
				  uint32_t *v_blank_start,
				  uint32_t *v_blank_end,
				  uint32_t *h_position,
				  uint32_t *v_position);

enum dc_status dc_add_stream_to_ctx(
			struct dc *dc,
		struct dc_state *new_ctx,
		struct dc_stream_state *stream);

enum dc_status dc_remove_stream_from_ctx(
		struct dc *dc,
			struct dc_state *new_ctx,
			struct dc_stream_state *stream);


bool dc_add_plane_to_context(
		const struct dc *dc,
		struct dc_stream_state *stream,
		struct dc_plane_state *plane_state,
		struct dc_state *context);

bool dc_remove_plane_from_context(
		const struct dc *dc,
		struct dc_stream_state *stream,
		struct dc_plane_state *plane_state,
		struct dc_state *context);

bool dc_rem_all_planes_for_stream(
		const struct dc *dc,
		struct dc_stream_state *stream,
		struct dc_state *context);

bool dc_add_all_planes_for_stream(
		const struct dc *dc,
		struct dc_stream_state *stream,
		struct dc_plane_state * const *plane_states,
		int plane_count,
		struct dc_state *context);

bool dc_stream_add_writeback(struct dc *dc,
		struct dc_stream_state *stream,
		struct dc_writeback_info *wb_info);

bool dc_stream_remove_writeback(struct dc *dc,
		struct dc_stream_state *stream,
		uint32_t dwb_pipe_inst);

enum dc_status dc_stream_add_dsc_to_resource(struct dc *dc,
		struct dc_state *state,
		struct dc_stream_state *stream);

bool dc_stream_warmup_writeback(struct dc *dc,
		int num_dwb,
		struct dc_writeback_info *wb_info);

bool dc_stream_dmdata_status_done(struct dc *dc, struct dc_stream_state *stream);

bool dc_stream_set_dynamic_metadata(struct dc *dc,
		struct dc_stream_state *stream,
		struct dc_dmdata_attributes *dmdata_attr);

enum dc_status dc_validate_stream(struct dc *dc, struct dc_stream_state *stream);

/*
 * Set up streams and links associated to drive sinks
 * The streams parameter is an absolute set of all active streams.
 *
 * After this call:
 *   Phy, Encoder, Timing Generator are programmed and enabled.
 *   New streams are enabled with blank stream; no memory read.
 */
/*
 * Enable stereo when commit_streams is not required,
 * for example, frame alternate.
 */
void dc_enable_stereo(
	struct dc *dc,
	struct dc_state *context,
	struct dc_stream_state *streams[],
	uint8_t stream_count);

/* Triggers multi-stream synchronization. */
void dc_trigger_sync(struct dc *dc, struct dc_state *context);

enum surface_update_type dc_check_update_surfaces_for_stream(
		struct dc *dc,
		struct dc_surface_update *updates,
		int surface_count,
		struct dc_stream_update *stream_update,
		const struct dc_stream_status *stream_status);

/**
 * Create a new default stream for the requested sink
 */
struct dc_stream_state *dc_create_stream_for_sink(struct dc_sink *dc_sink);

struct dc_stream_state *dc_copy_stream(const struct dc_stream_state *stream);

void update_stream_signal(struct dc_stream_state *stream, struct dc_sink *sink);

void dc_stream_retain(struct dc_stream_state *dc_stream);
void dc_stream_release(struct dc_stream_state *dc_stream);

struct dc_stream_status *dc_stream_get_status_from_state(
	struct dc_state *state,
	struct dc_stream_state *stream);
struct dc_stream_status *dc_stream_get_status(
	struct dc_stream_state *dc_stream);

#ifndef TRIM_FSFT
bool dc_optimize_timing_for_fsft(
	struct dc_stream_state *pStream,
	unsigned int max_input_rate_in_khz);
#endif

/*******************************************************************************
 * Cursor interfaces - To manages the cursor within a stream
 ******************************************************************************/
/* TODO: Deprecated once we switch to dc_set_cursor_position */
bool dc_stream_set_cursor_attributes(
	struct dc_stream_state *stream,
	const struct dc_cursor_attributes *attributes);

bool dc_stream_set_cursor_position(
	struct dc_stream_state *stream,
	const struct dc_cursor_position *position);


bool dc_stream_adjust_vmin_vmax(struct dc *dc,
				struct dc_stream_state *stream,
				struct dc_crtc_timing_adjust *adjust);

bool dc_stream_get_last_used_drr_vtotal(struct dc *dc,
		struct dc_stream_state *stream,
		uint32_t *refresh_rate);

bool dc_stream_get_crtc_position(struct dc *dc,
				 struct dc_stream_state **stream,
				 int num_streams,
				 unsigned int *v_pos,
				 unsigned int *nom_v_pos);

#if defined(CONFIG_DRM_AMD_SECURE_DISPLAY)
bool dc_stream_forward_dmcu_crc_window(struct dc *dc, struct dc_stream_state *stream,
			     struct crc_params *crc_window);
bool dc_stream_stop_dmcu_crc_win_update(struct dc *dc,
				 struct dc_stream_state *stream);
#endif

bool dc_stream_configure_crc(struct dc *dc,
			     struct dc_stream_state *stream,
			     struct crc_params *crc_window,
			     bool enable,
			     bool continuous);

bool dc_stream_get_crc(struct dc *dc,
		       struct dc_stream_state *stream,
		       uint32_t *r_cr,
		       uint32_t *g_y,
		       uint32_t *b_cb);

void dc_stream_set_static_screen_params(struct dc *dc,
					struct dc_stream_state **stream,
					int num_streams,
					const struct dc_static_screen_params *params);

void dc_stream_set_dyn_expansion(struct dc *dc, struct dc_stream_state *stream,
		enum dc_dynamic_expansion option);

void dc_stream_set_dither_option(struct dc_stream_state *stream,
				 enum dc_dither_option option);

bool dc_stream_set_gamut_remap(struct dc *dc,
			       const struct dc_stream_state *stream);

bool dc_stream_program_csc_matrix(struct dc *dc,
				  struct dc_stream_state *stream);

bool dc_stream_get_crtc_position(struct dc *dc,
				 struct dc_stream_state **stream,
				 int num_streams,
				 unsigned int *v_pos,
				 unsigned int *nom_v_pos);

#endif /* DC_STREAM_H_ */