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Charles KeepaxandMark Brown
cb3c257e08
Currently, all SDCA jacks simply report against a mask of 0xFFFF. This works fine for system with a single SDCA jack control as the status reflects that single control at all times. However, if two SDCA jack controls exist in the system, such as a separate representation for input and output, then the second control can cancel reports from the other since it will only report its relevant bits and zero in all other slots. This is exactly what the mask is for. Build up a mask using all the possible states for an SCDA jack control at registration time and use that mask when reporting a particular jack. It is worth noting this still doesn't handle cases such as two headphone jacks as that would require separate ALSA jacks to report to. Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.dev> Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Link: https://patch.msgid.link/20260430150931.2025953-2-ckeepax@opensource.cirrus.com Signed-off-by: Mark Brown <broonie@kernel.org>
36 lines
1.0 KiB
C
36 lines
1.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* The MIPI SDCA specification is available for public downloads at
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* https://www.mipi.org/mipi-sdca-v1-0-download
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*
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* Copyright (C) 2025 Cirrus Logic, Inc. and
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* Cirrus Logic International Semiconductor Ltd.
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*/
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#ifndef __SDCA_JACK_H__
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#define __SDCA_JACK_H__
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struct sdca_interrupt;
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struct snd_kcontrol;
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struct snd_soc_jack;
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/**
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* struct jack_state - Jack state structure to keep data between interrupts
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* @kctl: Pointer to the ALSA control attached to this jack
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* @jack: Pointer to the ASoC jack struct for this jack
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* @mask: Possible reported jack status bits for this jack
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*/
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struct jack_state {
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struct snd_kcontrol *kctl;
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struct snd_soc_jack *jack;
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unsigned int mask;
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};
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int sdca_jack_alloc_state(struct sdca_interrupt *interrupt);
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int sdca_jack_process(struct sdca_interrupt *interrupt);
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int sdca_jack_set_jack(struct sdca_interrupt_info *info, struct snd_soc_jack *jack);
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int sdca_jack_report(struct sdca_interrupt *interrupt);
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#endif // __SDCA_JACK_H__
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