diff options
Diffstat (limited to 'sound/soc/intel/avs/utils.h')
| -rw-r--r-- | sound/soc/intel/avs/utils.h | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/sound/soc/intel/avs/utils.h b/sound/soc/intel/avs/utils.h new file mode 100644 index 0000000000..0b82a98ed0 --- /dev/null +++ b/sound/soc/intel/avs/utils.h @@ -0,0 +1,65 @@ +/* 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 |