c315833fa3
AGM might get initialized before sound card is populated with all pcm nodes. This will lead to AGM parsing fewer nodes and forms incomplete list of backends. To avoid this, kernel module sets card status to ONLINE, and AGM waits till the card status is ONLINE before parsing for the pcm nodes. Change-Id: I4b7f7085645706ba4351efe23ba048d3a177312c Signed-off-by: Srinivas Marka <smarka@codeaurora.org>
77 lines
2.2 KiB
C
77 lines
2.2 KiB
C
/* Copyright (c) 2020-2021, 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 _MSM_COMMON_H_
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#define _MSM_COMMON_H_
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#include <sound/soc.h>
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#include <sound/pcm.h>
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enum {
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MI2S = 0,
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TDM,
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AUXPCM,
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};
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enum {
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PRI_MI2S_TDM_AUXPCM = 0,
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SEC_MI2S_TDM_AUXPCM,
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TER_MI2S_TDM_AUXPCM,
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QUAT_MI2S_TDM_AUXPCM,
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QUIN_MI2S_TDM_AUXPCM,
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SEN_MI2S_TDM_AUXPCM,
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MI2S_TDM_AUXPCM_MAX,
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};
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typedef enum snd_card_status_t {
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SND_CARD_STATUS_OFFLINE = 0,
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SND_CARD_STATUS_ONLINE = 1,
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} snd_card_status_t;
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struct msm_common_pdata {
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uint8_t *aud_dev_state;
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struct kobject aud_dev_kobj;
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uint8_t dsp_sessions_closed;
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uint32_t num_aud_devs;
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struct device_node *mi2s_gpio_p[MI2S_TDM_AUXPCM_MAX];
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struct mutex lock[MI2S_TDM_AUXPCM_MAX];
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u32 tdm_max_slots; /* Max TDM slots used */
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atomic_t mi2s_gpio_ref_cnt[MI2S_TDM_AUXPCM_MAX];
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atomic_t lpass_intf_clk_ref_cnt[MI2S_TDM_AUXPCM_MAX];
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atomic_t lpass_audio_hw_vote_ref_cnt;
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struct clk *lpass_audio_hw_vote;
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uint32_t is_audio_hw_vote_required[MI2S_TDM_AUXPCM_MAX];
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};
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int snd_card_notify_user(snd_card_status_t card_status);
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int snd_card_set_card_status(snd_card_status_t card_status);
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struct msm_common_pdata *msm_common_get_pdata(struct snd_soc_card *card);
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void msm_common_set_pdata(struct snd_soc_card *card,
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struct msm_common_pdata *pdata);
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int snd_card_sysfs_init(void);
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int msm_common_snd_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *params);
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int msm_common_snd_startup(struct snd_pcm_substream *substream);
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void msm_common_snd_shutdown(struct snd_pcm_substream *substream);
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int msm_common_snd_init(struct platform_device *pdev,
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struct snd_soc_card *card);
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void msm_common_snd_deinit(struct msm_common_pdata *pdata);
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int msm_common_dai_link_init(struct snd_soc_pcm_runtime *rtd);
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#endif
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