diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/core/dc_stream.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_stream.c | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_stream.c b/drivers/gpu/drm/amd/display/dc/core/dc_stream.c new file mode 100644 index 000000000000..8d6aa607e1f5 --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/core/dc_stream.c @@ -0,0 +1,141 @@ +/* + * 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" + +/******************************************************************************* + * Private definitions + ******************************************************************************/ + +struct stream { + struct core_stream protected; + int ref_count; +}; + +#define DC_STREAM_TO_STREAM(dc_stream) container_of(dc_stream, struct stream, protected.public) + +/******************************************************************************* + * Private functions + ******************************************************************************/ + +static bool construct(struct core_stream *stream, + const struct dc_sink *dc_sink_data) +{ + uint32_t i = 0; + + stream->sink = DC_SINK_TO_CORE(dc_sink_data); + stream->ctx = stream->sink->ctx; + stream->public.sink = dc_sink_data; + + 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->public.audio_info.modes[i].channel_count = dc_sink_data->edid_caps.audio_modes[i].channel_count; + stream->public.audio_info.modes[i].format_code = dc_sink_data->edid_caps.audio_modes[i].format_code; + stream->public.audio_info.modes[i].sample_rates.all = dc_sink_data->edid_caps.audio_modes[i].sample_rate; + stream->public.audio_info.modes[i].sample_size = dc_sink_data->edid_caps.audio_modes[i].sample_size; + } + stream->public.audio_info.mode_count = dc_sink_data->edid_caps.audio_mode_count; + stream->public.audio_info.audio_latency = dc_sink_data->edid_caps.audio_latency; + stream->public.audio_info.video_latency = dc_sink_data->edid_caps.video_latency; + memmove( + stream->public.audio_info.display_name, + dc_sink_data->edid_caps.display_name, + AUDIO_INFO_DISPLAY_NAME_SIZE_IN_CHARS); + stream->public.audio_info.manufacture_id = dc_sink_data->edid_caps.manufacturer_id; + stream->public.audio_info.product_id = dc_sink_data->edid_caps.product_id; + stream->public.audio_info.flags.all = dc_sink_data->edid_caps.speaker_flags; + + /* TODO - Unhardcode port_id */ + stream->public.audio_info.port_id[0] = 0x5558859e; + stream->public.audio_info.port_id[1] = 0xd989449; + + /* EDID CAP translation for HDMI 2.0 */ + stream->public.timing.flags.LTE_340MCSC_SCRAMBLE = dc_sink_data->edid_caps.lte_340mcsc_scramble; + + stream->status.link = &stream->sink->link->public; + + return true; +} + +static void destruct(struct core_stream *stream) +{ + dc_sink_release(&stream->sink->public); +} + +void dc_stream_retain(const struct dc_stream *dc_stream) +{ + struct stream *stream = DC_STREAM_TO_STREAM(dc_stream); + stream->ref_count++; +} + +void dc_stream_release(const struct dc_stream *public) +{ + struct stream *stream = DC_STREAM_TO_STREAM(public); + struct core_stream *protected = DC_STREAM_TO_CORE(public); + + if (public != NULL) { + stream->ref_count--; + + if (stream->ref_count == 0) { + destruct(protected); + dm_free(stream); + } + } +} + +struct dc_stream *dc_create_stream_for_sink( + const struct dc_sink *dc_sink) +{ + struct core_sink *sink = DC_SINK_TO_CORE(dc_sink); + struct stream *stream; + + if (sink == NULL) + goto alloc_fail; + + stream = dm_alloc(sizeof(struct stream)); + + if (NULL == stream) + goto alloc_fail; + + if (false == construct(&stream->protected, dc_sink)) + goto construct_fail; + + dc_stream_retain(&stream->protected.public); + + return &stream->protected.public; + +construct_fail: + dm_free(stream); + +alloc_fail: + return NULL; +} |