text: /*
   * 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 "dc.h"
  #include "core_types.h"
  #include "resource.h"
  #include "ipp.h"
  #include "timing_generator.h"
  
  #define DC_LOGGER dc->ctx->logger
  
  /*******************************************************************************
   * Private functions
   ******************************************************************************/
  void update_stream_signal(struct dc_stream_state *stream)
  {
  
  	struct dc_sink *dc_sink = stream->sink;
  
  	if (dc_sink->sink_signal == SIGNAL_TYPE_NONE)
  		stream->signal = stream->sink->link->connector_signal;
  	else
  		stream->signal = dc_sink->sink_signal;
  
  	if (dc_is_dvi_signal(stream->signal)) {
  		if (stream->ctx->dc->caps.dual_link_dvi &&
  		    stream->timing.pix_clk_khz > TMDS_MAX_PIXEL_CLOCK &&
  		    stream->sink->sink_signal != SIGNAL_TYPE_DVI_SINGLE_LINK)
  			stream->signal = SIGNAL_TYPE_DVI_DUAL_LINK;
  		else
  			stream->signal = SIGNAL_TYPE_DVI_SINGLE_LINK;
  	}
  }
  
  static void construct(struct dc_stream_state *stream,
  	struct dc_sink *dc_sink_data)
  {
  	uint32_t i = 0;
  
  	stream->sink = dc_sink_data;
  	stream->ctx = stream->sink->ctx;
  
  	dc_sink_retain(dc_sink_data);
  
  	/* Copy audio modes */
  	/* TODO - Remove this translation */
  	for (i = 0; i < (dc_sink_data->edid_caps.audio_mode_count); i++)
  	{
  		stream->audio_info.modes[i].channel_count = dc_sink_data->edid_caps.audio_modes[i].channel_count;
  		stream->audio_info.modes[i].format_code = dc_sink_data->edid_caps.audio_modes[i].format_code;
  		stream->audio_info.modes[i].sample_rates.all = dc_sink_data->edid_caps.audio_modes[i].sample_rate;
  		stream->audio_info.modes[i].sample_size = dc_sink_data->edid_caps.audio_modes[i].sample_size;
  	}
  	stream->audio_info.mode_count = dc_sink_data->edid_caps.audio_mode_count;
  	stream->audio_info.audio_latency = dc_sink_data->edid_caps.audio_latency;
  	stream->audio_info.video_latency = dc_sink_data->edid_caps.video_latency;
  	memmove(
  		stream->audio_info.display_name,
  		dc_sink_data->edid_caps.display_name,
  		AUDIO_INFO_DISPLAY_NAME_SIZE_IN_CHARS);
  	stream->audio_info.manufacture_id = dc_sink_data->edid_caps.manufacturer_id;
  	stream->audio_info.product_id = dc_sink_data->edid_caps.product_id;
  	stream->audio_info.flags.all = dc_sink_data->edid_caps.speaker_flags;
  
  	if (dc_sink_data->dc_container_id != NULL) {
  		struct dc_container_id *dc_container_id = dc_sink_data->dc_container_id;
  
  		stream->audio_info.port_id[0] = dc_container_id->portId[0];
  		stream->audio_info.port_id[1] = dc_container_id->portId[1];
  	} else {
  		/* TODO - WindowDM has implemented,
  		other DMs need Unhardcode port_id */
  		stream->audio_info.port_id[0] = 0x5558859e;
  		stream->audio_info.port_id[1] = 0xd989449;
  	}
  
  	/* EDID CAP translation for HDMI 2.0 */
  	stream->timing.flags.LTE_340MCSC_SCRAMBLE = dc_sink_data->edid_caps.lte_340mcsc_scramble;
  
  	update_stream_signal(stream);
  
  	stream->out_transfer_func = dc_create_transfer_func();
  	stream->out_transfer_func->type = TF_TYPE_BYPASS;
  	stream->out_transfer_func->ctx = stream->ctx;
  }
  
  static void destruct(struct dc_stream_state *stream)
  {
  	dc_sink_release(stream->sink);
  	if (stream->out_transfer_func != NULL) {
  		dc_transfer_func_release(stream->out_transfer_func);
  		stream->out_transfer_func = NULL;
  	}
  }
  
  void dc_stream_retain(struct dc_stream_state *stream)
  {
  	kref_get(&stream->refcount);
  }
  
  static void dc_stream_free(struct kref *kref)
  {
  	struct dc_stream_state *stream = container_of(kref, struct dc_stream_state, refcount);
  
  	destruct(stream);
  	kfree(stream);
  }
  
  void dc_stream_release(struct dc_stream_state *stream)
  {
  	if (stream != NULL) {
  		kref_put(&stream->refcount, dc_stream_free);
  	}
  }
  
  struct dc_stream_state *dc_create_stream_for_sink(
  		struct dc_sink *sink)
  {
  	struct dc_stream_state *stream;
  
  	if (sink == NULL)
  		return NULL;
  
  	stream = kzalloc(sizeof(struct dc_stream_state), GFP_KERNEL);
  	if (stream == NULL)
  		return NULL;
  
  	construct(stream, sink);
  
  	kref_init(&stream->refcount);
  
  	return stream;
  }
  
  struct dc_stream_status *dc_stream_get_status(
  	struct dc_stream_state *stream)
  {
  	uint8_t i;
  	struct dc  *dc = stream->ctx->dc;
  
  	for (i = 0; i < dc->current_state->stream_count; i++) {
  		if (stream == dc->current_state->streams[i])
  			return &dc->current_state->stream_status[i];
  	}
  
  	return NULL;
  }
  
  /**
   * dc_stream_set_cursor_attributes() - Update cursor attributes and set cursor surface address
   */
  bool dc_stream_set_cursor_attributes(
  	struct dc_stream_state *stream,
  	const struct dc_cursor_attributes *attributes)
  {
  	int i;
  	struct dc  *core_dc;
  	struct resource_context *res_ctx;
  	struct pipe_ctx *pipe_to_program = NULL;
  
  	if (NULL == stream) {
  		dm_error("DC: dc_stream is NULL!\n");
  		return false;
  	}
  	if (NULL == attributes) {
  		dm_error("DC: attributes is NULL!\n");
  		return false;
  	}
  
  	if (attributes->address.quad_part == 0) {
  		dm_output_to_console("DC: Cursor address is 0!\n");
  		return false;
  	}
  
  	core_dc = stream->ctx->dc;
  	res_ctx = &core_dc->current_state->res_ctx;
  	stream->cursor_attributes = *attributes;
  
  	for (i = 0; i < MAX_PIPES; i++) {
  		struct pipe_ctx *pipe_ctx = &res_ctx->pipe_ctx[i];
  
  		if (pipe_ctx->stream != stream)
  			continue;
  
  		if (!pipe_to_program) {
  			pipe_to_program = pipe_ctx;
  			core_dc->hwss.pipe_control_lock(core_dc, pipe_to_program, true);
  		}
  
  		core_dc->hwss.set_cursor_attribute(pipe_ctx);
  		if (core_dc->hwss.set_cursor_sdr_white_level)
  			core_dc->hwss.set_cursor_sdr_white_level(pipe_ctx);
  	}
  
  	if (pipe_to_program)
  		core_dc->hwss.pipe_control_lock(core_dc, pipe_to_program, false);
  
  	return true;
  }
  
  bool dc_stream_set_cursor_position(
  	struct dc_stream_state *stream,
  	const struct dc_cursor_position *position)
  {
  	int i;
  	struct dc  *core_dc;
  	struct resource_context *res_ctx;
  	struct pipe_ctx *pipe_to_program = NULL;
  
  	if (NULL == stream) {
  		dm_error("DC: dc_stream is NULL!\n");
  		return false;
  	}
  
  	if (NULL == position) {
  		dm_error("DC: cursor position is NULL!\n");
  		return false;
  	}
  
  	core_dc = stream->ctx->dc;
  	res_ctx = &core_dc->current_state->res_ctx;
  	stream->cursor_position = *position;
  
  	for (i = 0; i < MAX_PIPES; i++) {
  		struct pipe_ctx *pipe_ctx = &res_ctx->pipe_ctx[i];
  
  		if (pipe_ctx->stream != stream ||
  				(!pipe_ctx->plane_res.mi  && !pipe_ctx->plane_res.hubp) ||
  				!pipe_ctx->plane_state ||
  				(!pipe_ctx->plane_res.xfm && !pipe_ctx->plane_res.dpp) ||
  				!pipe_ctx->plane_res.ipp)
  			continue;
  
  		if (!pipe_to_program) {
  			pipe_to_program = pipe_ctx;
  			core_dc->hwss.pipe_control_lock(core_dc, pipe_to_program, true);
  		}
  
  		core_dc->hwss.set_cursor_position(pipe_ctx);
  	}
  
  	if (pipe_to_program)
  		core_dc->hwss.pipe_control_lock(core_dc, pipe_to_program, false);
  
  	return true;
  }
  
  uint32_t dc_stream_get_vblank_counter(const struct dc_stream_state *stream)
  {
  	uint8_t i;
  	struct dc  *core_dc = stream->ctx->dc;
  	struct resource_context *res_ctx =
  		&core_dc->current_state->res_ctx;
  
  	for (i = 0; i < MAX_PIPES; i++) {
  		struct timing_generator *tg = res_ctx->pipe_ctx[i].stream_res.tg;
  
  		if (res_ctx->pipe_ctx[i].stream != stream)
  			continue;
  
  		return tg->funcs->get_frame_count(tg);
  	}
  
  	return 0;
  }
  
  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)
  {
  	uint8_t i;
  	bool ret = false;
  	struct dc  *core_dc = stream->ctx->dc;
  	struct resource_context *res_ctx =
  		&core_dc->current_state->res_ctx;
  
  	for (i = 0; i < MAX_PIPES; i++) {
  		struct timing_generator *tg = res_ctx->pipe_ctx[i].stream_res.tg;
  
  		if (res_ctx->pipe_ctx[i].stream != stream)
  			continue;
  
  		tg->funcs->get_scanoutpos(tg,
  					  v_blank_start,
  					  v_blank_end,
  					  h_position,
  					  v_position);
  
  		ret = true;
  		break;
  	}
  
  	return ret;
  }
  
  void dc_stream_log(const struct dc *dc, const struct dc_stream_state *stream)
  {
  	DC_LOG_DC(
  			"core_stream 0x%p: src: %d, %d, %d, %d; dst: %d, %d, %d, %d, colorSpace:%d\n",
  			stream,
  			stream->src.x,
  			stream->src.y,
  			stream->src.width,
  			stream->src.height,
  			stream->dst.x,
  			stream->dst.y,
  			stream->dst.width,
  			stream->dst.height,
  			stream->output_color_space);
  	DC_LOG_DC(
  			"\tpix_clk_khz: %d, h_total: %d, v_total: %d, pixelencoder:%d, displaycolorDepth:%d\n",
  			stream->timing.pix_clk_khz,
  			stream->timing.h_total,
  			stream->timing.v_total,
  			stream->timing.pixel_encoding,
  			stream->timing.display_color_depth);
  	DC_LOG_DC(
  			"\tsink name: %s, serial: %d\n",
  			stream->sink->edid_caps.display_name,
  			stream->sink->edid_caps.serial_number);
  	DC_LOG_DC(
  			"\tlink: %d\n",
  			stream->sink->link->link_index);
  }
  