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/* include/linux/msm_hdmi.h
*
* Copyright (c) 2014-2015 The Linux Foundation. All rights reserved.
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef _MSM_HDMI_H_
#define _MSM_HDMI_H_
#include <linux/device.h>
#include <linux/platform_device.h>
/*
* HDMI cable notify handler sturcture.
* link A link for the linked list
* status Current status of HDMI cable connection
* hpd_notify Callback function to provide cable status
*/
struct hdmi_cable_notify {
struct list_head link;
int status;
void (*hpd_notify) (struct hdmi_cable_notify *h);
};
struct msm_hdmi_audio_edid_blk {
u8 *audio_data_blk;
unsigned int audio_data_blk_size; /* in bytes */
u8 *spk_alloc_data_blk;
unsigned int spk_alloc_data_blk_size; /* in bytes */
};
struct msm_hdmi_audio_setup_params {
u32 sample_rate_hz;
u32 num_of_channels;
u32 channel_allocation;
u32 level_shift;
bool down_mix;
u32 sample_present;
};
struct msm_hdmi_audio_codec_ops {
int (*audio_info_setup)(struct platform_device *pdev,
struct msm_hdmi_audio_setup_params *params);
int (*get_audio_edid_blk) (struct platform_device *pdev,
struct msm_hdmi_audio_edid_blk *blk);
int (*hdmi_cable_status) (struct platform_device *pdev, u32 vote);
};
#ifdef CONFIG_FB_MSM_MDSS_HDMI_PANEL
/*
* Register for HDMI cable connect or disconnect notification.
* @param handler callback handler for notification
* @return negative value as error otherwise current status of cable
*/
int register_hdmi_cable_notification(
struct hdmi_cable_notify *handler);
/*
* Un-register for HDMI cable connect or disconnect notification.
* @param handler callback handler for notification
* @return negative value as error
*/
int unregister_hdmi_cable_notification(
struct hdmi_cable_notify *handler);
int msm_hdmi_register_audio_codec(struct platform_device *pdev,
struct msm_hdmi_audio_codec_ops *ops);
#else
static inline int register_hdmi_cable_notification(
struct hdmi_cable_notify *handler) {
return 0;
}
static inline int unregister_hdmi_cable_notification(
struct hdmi_cable_notify *handler) {
return 0;
}
static inline int msm_hdmi_register_audio_codec(struct platform_device *pdev,
struct msm_hdmi_audio_codec_ops *ops) {
return 0;
}
#endif /* CONFIG_FB_MSM_MDSS_HDMI_PANEL */
#endif /*_MSM_HDMI_H_*/
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