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1/* SPDX-License-Identifier: GPL-2.0-only */2/*3 * Copyright(c) 2023 Intel Corporation4 *5 * Authors: Cezary Rojewski <cezary.rojewski@intel.com>6 * Amadeusz Slawinski <amadeuszx.slawinski@linux.intel.com>7 */8 9#ifndef __SOUND_SOC_INTEL_AVS_UTILS_H10#define __SOUND_SOC_INTEL_AVS_UTILS_H11 12#include <sound/soc-acpi.h>13 14static inline bool avs_mach_singular_ssp(struct snd_soc_acpi_mach *mach)15{16 return hweight_long(mach->mach_params.i2s_link_mask) == 1;17}18 19static inline u32 avs_mach_ssp_port(struct snd_soc_acpi_mach *mach)20{21 return __ffs(mach->mach_params.i2s_link_mask);22}23 24static inline bool avs_mach_singular_tdm(struct snd_soc_acpi_mach *mach, u32 port)25{26 unsigned long *tdms = mach->pdata;27 28 return !tdms || (hweight_long(tdms[port]) == 1);29}30 31static inline u32 avs_mach_ssp_tdm(struct snd_soc_acpi_mach *mach, u32 port)32{33 unsigned long *tdms = mach->pdata;34 35 return tdms ? __ffs(tdms[port]) : 0;36}37 38static inline int avs_mach_get_ssp_tdm(struct device *dev, struct snd_soc_acpi_mach *mach,39 int *ssp_port, int *tdm_slot)40{41 int port;42 43 if (!avs_mach_singular_ssp(mach)) {44 dev_err(dev, "Invalid SSP configuration\n");45 return -EINVAL;46 }47 port = avs_mach_ssp_port(mach);48 49 if (!avs_mach_singular_tdm(mach, port)) {50 dev_err(dev, "Invalid TDM configuration\n");51 return -EINVAL;52 }53 *ssp_port = port;54 *tdm_slot = avs_mach_ssp_tdm(mach, *ssp_port);55 56 return 0;57}58 59/*60 * Macro to easily generate format strings61 */62#define AVS_STRING_FMT(prefix, suffix, ssp, tdm) \63 (tdm) ? prefix "%d:%d" suffix : prefix "%d" suffix, (ssp), (tdm)64 65#endif66