302075bb10
Add notifier call chain to enable button detection. Change-Id: Ibd432691e4b820b8b2e86ebc8e8c2015bb26d2b1 Signed-off-by: Vatsal Bucha <vbucha@codeaurora.org>
70 lines
2.1 KiB
C
70 lines
2.1 KiB
C
/* Copyright (c) 2018, The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef __WCD937X_MBHC_H__
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#define __WCD937X_MBHC_H__
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#include "../wcd-mbhc-v2.h"
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struct wcd937x_mbhc {
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struct wcd_mbhc wcd_mbhc;
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struct blocking_notifier_head notifier;
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struct fw_info *fw_data;
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};
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#if IS_ENABLED(CONFIG_SND_SOC_WCD937X)
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extern int wcd937x_mbhc_init(struct wcd937x_mbhc **mbhc,
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struct snd_soc_codec *codec,
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struct fw_info *fw_data);
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extern void wcd937x_mbhc_hs_detect_exit(struct snd_soc_codec *codec);
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extern int wcd937x_mbhc_hs_detect(struct snd_soc_codec *codec,
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struct wcd_mbhc_config *mbhc_cfg);
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extern void wcd937x_mbhc_deinit(struct snd_soc_codec *codec);
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extern int wcd937x_mbhc_post_ssr_init(struct wcd937x_mbhc *mbhc,
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struct snd_soc_codec *codec);
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extern int wcd937x_mbhc_get_impedance(struct wcd937x_mbhc *wcd937x_mbhc,
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uint32_t *zl, uint32_t *zr);
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#else
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static inline int wcd937x_mbhc_init(struct wcd937x_mbhc **mbhc,
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struct snd_soc_codec *codec,
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struct fw_info *fw_data)
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{
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return 0;
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}
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static inline void wcd937x_mbhc_hs_detect_exit(struct snd_soc_codec *codec)
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{
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}
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static inline int wcd937x_mbhc_hs_detect(struct snd_soc_codec *codec,
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struct wcd_mbhc_config *mbhc_cfg)
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{
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return 0;
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}
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static inline void wcd937x_mbhc_deinit(struct snd_soc_codec *codec)
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{
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}
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static inline int wcd937x_mbhc_post_ssr_init(struct wcd937x_mbhc *mbhc,
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struct snd_soc_codec *codec)
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{
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return 0;
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}
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static inline int wcd937x_mbhc_get_impedance(struct wcd937x_mbhc *wcd937x_mbhc,
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uint32_t *zl, uint32_t *zr)
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{
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if (zl)
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*zl = 0;
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if (zr)
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*zr = 0;
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return -EINVAL;
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}
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#endif
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#endif /* __WCD937X_MBHC_H__ */
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