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Gen9 hardware supports HDMI2.0 through LSPCON chips. Extending HDR support for MCA LSPCON based GEN9 devices. SOC will drive LSPCON as DP and send HDR metadata as standard DP SDP packets. LSPCON will be set to operate in PCON mode, will receive the metadata and create Dynamic Range and Mastering Infoframe (DRM packets) and send it to HDR capable HDMI sink devices. v2: Re-used hsw infoframe write implementation for HDR metadata for LSPCON as per Ville's suggestion. v3: Addressed Jani Nikula's review comments. v4: Addressed Ville's review comments, removed redundant wrapper and checks, passed arguments instead of hardcodings. Signed-off-by: Uma Shankar <uma.shankar@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20201130204738.2443-3-uma.shankar@intel.com
40 lines
1.3 KiB
C
40 lines
1.3 KiB
C
/* SPDX-License-Identifier: MIT */
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/*
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* Copyright © 2019 Intel Corporation
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*/
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#ifndef __INTEL_LSPCON_H__
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#define __INTEL_LSPCON_H__
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#include <linux/types.h>
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struct drm_connector;
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struct drm_connector_state;
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struct intel_crtc_state;
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struct intel_digital_port;
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struct intel_encoder;
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struct intel_lspcon;
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void lspcon_detect_hdr_capability(struct intel_lspcon *lspcon);
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void lspcon_resume(struct intel_digital_port *dig_port);
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void lspcon_wait_pcon_mode(struct intel_lspcon *lspcon);
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void lspcon_write_infoframe(struct intel_encoder *encoder,
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const struct intel_crtc_state *crtc_state,
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unsigned int type,
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const void *buf, ssize_t len);
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void lspcon_read_infoframe(struct intel_encoder *encoder,
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const struct intel_crtc_state *crtc_state,
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unsigned int type,
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void *frame, ssize_t len);
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void lspcon_set_infoframes(struct intel_encoder *encoder,
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bool enable,
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const struct intel_crtc_state *crtc_state,
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const struct drm_connector_state *conn_state);
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u32 lspcon_infoframes_enabled(struct intel_encoder *encoder,
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const struct intel_crtc_state *pipe_config);
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void hsw_write_infoframe(struct intel_encoder *encoder,
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const struct intel_crtc_state *crtc_state,
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unsigned int type,
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const void *frame, ssize_t len);
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#endif /* __INTEL_LSPCON_H__ */
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