Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
73 lines
1.9 KiB
C
73 lines
1.9 KiB
C
/* SPDX-License-Identifier: MIT */
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#ifndef DRM_DISPLAY_HDMI_CEC_HELPER
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#define DRM_DISPLAY_HDMI_CEC_HELPER
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#include <linux/types.h>
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struct drm_connector;
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struct cec_msg;
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struct device;
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struct drm_connector_hdmi_cec_funcs {
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/**
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* @init: perform hardware-specific initialization before registering the CEC adapter
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*/
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int (*init)(struct drm_connector *connector);
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/**
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* @uninit: perform hardware-specific teardown for the CEC adapter
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*/
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void (*uninit)(struct drm_connector *connector);
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/**
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* @enable: enable or disable CEC adapter
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*/
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int (*enable)(struct drm_connector *connector, bool enable);
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/**
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* @log_addr: set adapter's logical address, can be called multiple
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* times if adapter supports several LAs
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*/
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int (*log_addr)(struct drm_connector *connector, u8 logical_addr);
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/**
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* @transmit: start transmission of the specified CEC message
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*/
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int (*transmit)(struct drm_connector *connector, u8 attempts,
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u32 signal_free_time, struct cec_msg *msg);
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};
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int drmm_connector_hdmi_cec_register(struct drm_connector *connector,
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const struct drm_connector_hdmi_cec_funcs *funcs,
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const char *name,
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u8 available_las,
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struct device *dev);
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void drm_connector_hdmi_cec_received_msg(struct drm_connector *connector,
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struct cec_msg *msg);
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void drm_connector_hdmi_cec_transmit_done(struct drm_connector *connector,
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u8 status,
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u8 arb_lost_cnt, u8 nack_cnt,
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u8 low_drive_cnt, u8 error_cnt);
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void drm_connector_hdmi_cec_transmit_attempt_done(struct drm_connector *connector,
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u8 status);
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#if IS_ENABLED(CONFIG_DRM_DISPLAY_HDMI_CEC_NOTIFIER_HELPER)
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int drmm_connector_hdmi_cec_notifier_register(struct drm_connector *connector,
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const char *port_name,
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struct device *dev);
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#else
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static inline int drmm_connector_hdmi_cec_notifier_register(struct drm_connector *connector,
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const char *port_name,
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struct device *dev)
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{
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return 0;
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}
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#endif
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#endif
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