1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3 * Copyright(c) 2023 Intel Corporation
4 *
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_H
10 #define __SOUND_SOC_INTEL_AVS_UTILS_H
11
12 #include <sound/soc-acpi.h>
13
14 extern bool obsolete_card_names;
15
16 struct avs_mach_pdata {
17 struct hda_codec *codec;
18 unsigned long *tdms;
19 char *codec_name; /* DMIC only */
20
21 bool obsolete_card_names;
22 };
23
avs_mach_singular_ssp(struct snd_soc_acpi_mach * mach)24 static inline bool avs_mach_singular_ssp(struct snd_soc_acpi_mach *mach)
25 {
26 return hweight_long(mach->mach_params.i2s_link_mask) == 1;
27 }
28
avs_mach_ssp_port(struct snd_soc_acpi_mach * mach)29 static inline u32 avs_mach_ssp_port(struct snd_soc_acpi_mach *mach)
30 {
31 return __ffs(mach->mach_params.i2s_link_mask);
32 }
33
avs_mach_singular_tdm(struct snd_soc_acpi_mach * mach,u32 port)34 static inline bool avs_mach_singular_tdm(struct snd_soc_acpi_mach *mach, u32 port)
35 {
36 struct avs_mach_pdata *pdata = mach->pdata;
37 unsigned long *tdms = pdata->tdms;
38
39 return !tdms || (hweight_long(tdms[port]) == 1);
40 }
41
avs_mach_ssp_tdm(struct snd_soc_acpi_mach * mach,u32 port)42 static inline u32 avs_mach_ssp_tdm(struct snd_soc_acpi_mach *mach, u32 port)
43 {
44 struct avs_mach_pdata *pdata = mach->pdata;
45 unsigned long *tdms = pdata->tdms;
46
47 return tdms ? __ffs(tdms[port]) : 0;
48 }
49
avs_mach_get_ssp_tdm(struct device * dev,struct snd_soc_acpi_mach * mach,int * ssp_port,int * tdm_slot)50 static inline int avs_mach_get_ssp_tdm(struct device *dev, struct snd_soc_acpi_mach *mach,
51 int *ssp_port, int *tdm_slot)
52 {
53 int port;
54
55 if (!avs_mach_singular_ssp(mach)) {
56 dev_err(dev, "Invalid SSP configuration\n");
57 return -EINVAL;
58 }
59 port = avs_mach_ssp_port(mach);
60
61 if (!avs_mach_singular_tdm(mach, port)) {
62 dev_err(dev, "Invalid TDM configuration\n");
63 return -EINVAL;
64 }
65 *ssp_port = port;
66 *tdm_slot = avs_mach_ssp_tdm(mach, *ssp_port);
67
68 return 0;
69 }
70
71 /*
72 * Macro to easily generate format strings
73 */
74 #define AVS_STRING_FMT(prefix, suffix, ssp, tdm) \
75 (tdm) ? prefix "%d:%d" suffix : prefix "%d" suffix, (ssp), (tdm)
76
77 #endif
78