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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright(c) 2023 Intel Corporation. All rights reserved.
*
* Authors: Cezary Rojewski <cezary.rojewski@intel.com>
* Amadeusz Slawinski <amadeuszx.slawinski@linux.intel.com>
*/
#ifndef __SOUND_SOC_INTEL_AVS_UTILS_H
#define __SOUND_SOC_INTEL_AVS_UTILS_H
#include <sound/soc-acpi.h>
static inline bool avs_mach_singular_ssp(struct snd_soc_acpi_mach *mach)
{
return hweight_long(mach->mach_params.i2s_link_mask) == 1;
}
static inline u32 avs_mach_ssp_port(struct snd_soc_acpi_mach *mach)
{
return __ffs(mach->mach_params.i2s_link_mask);
}
static inline bool avs_mach_singular_tdm(struct snd_soc_acpi_mach *mach, u32 port)
{
unsigned long *tdms = mach->pdata;
return !tdms || (hweight_long(tdms[port]) == 1);
}
static inline u32 avs_mach_ssp_tdm(struct snd_soc_acpi_mach *mach, u32 port)
{
unsigned long *tdms = mach->pdata;
return tdms ? __ffs(tdms[port]) : 0;
}
static inline int avs_mach_get_ssp_tdm(struct device *dev, struct snd_soc_acpi_mach *mach,
int *ssp_port, int *tdm_slot)
{
int port;
if (!avs_mach_singular_ssp(mach)) {
dev_err(dev, "Invalid SSP configuration\n");
return -EINVAL;
}
port = avs_mach_ssp_port(mach);
if (!avs_mach_singular_tdm(mach, port)) {
dev_err(dev, "Invalid TDM configuration\n");
return -EINVAL;
}
*ssp_port = port;
*tdm_slot = avs_mach_ssp_tdm(mach, *ssp_port);
return 0;
}
/*
* Macro to easily generate format strings
*/
#define AVS_STRING_FMT(prefix, suffix, ssp, tdm) \
(tdm) ? prefix "%d:%d" suffix : prefix "%d" suffix, (ssp), (tdm)
#endif
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