1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * NXP AUDMIX ALSA SoC Digital Audio Interface (DAI) driver
4 *
5 * Copyright 2017 NXP
6 */
7
8#ifndef __FSL_AUDMIX_H
9#define __FSL_AUDMIX_H
10
11#define FSL_AUDMIX_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\
12 SNDRV_PCM_FMTBIT_S24_LE |\
13 SNDRV_PCM_FMTBIT_S32_LE)
14/* AUDMIX Registers */
15#define FSL_AUDMIX_CTR 0x200 /* Control */
16#define FSL_AUDMIX_STR 0x204 /* Status */
17
18#define FSL_AUDMIX_ATCR0 0x208 /* Attenuation Control */
19#define FSL_AUDMIX_ATIVAL0 0x20c /* Attenuation Initial Value */
20#define FSL_AUDMIX_ATSTPUP0 0x210 /* Attenuation step up factor */
21#define FSL_AUDMIX_ATSTPDN0 0x214 /* Attenuation step down factor */
22#define FSL_AUDMIX_ATSTPTGT0 0x218 /* Attenuation step target */
23#define FSL_AUDMIX_ATTNVAL0 0x21c /* Attenuation Value */
24#define FSL_AUDMIX_ATSTP0 0x220 /* Attenuation step number */
25
26#define FSL_AUDMIX_ATCR1 0x228 /* Attenuation Control */
27#define FSL_AUDMIX_ATIVAL1 0x22c /* Attenuation Initial Value */
28#define FSL_AUDMIX_ATSTPUP1 0x230 /* Attenuation step up factor */
29#define FSL_AUDMIX_ATSTPDN1 0x234 /* Attenuation step down factor */
30#define FSL_AUDMIX_ATSTPTGT1 0x238 /* Attenuation step target */
31#define FSL_AUDMIX_ATTNVAL1 0x23c /* Attenuation Value */
32#define FSL_AUDMIX_ATSTP1 0x240 /* Attenuation step number */
33
34/* AUDMIX Control Register */
35#define FSL_AUDMIX_CTR_MIXCLK_SHIFT 0
36#define FSL_AUDMIX_CTR_MIXCLK_MASK BIT(FSL_AUDMIX_CTR_MIXCLK_SHIFT)
37#define FSL_AUDMIX_CTR_MIXCLK(i) ((i) << FSL_AUDMIX_CTR_MIXCLK_SHIFT)
38#define FSL_AUDMIX_CTR_OUTSRC_SHIFT 1
39#define FSL_AUDMIX_CTR_OUTSRC_MASK (0x3 << FSL_AUDMIX_CTR_OUTSRC_SHIFT)
40#define FSL_AUDMIX_CTR_OUTSRC(i) (((i) << FSL_AUDMIX_CTR_OUTSRC_SHIFT)\
41 & FSL_AUDMIX_CTR_OUTSRC_MASK)
42#define FSL_AUDMIX_CTR_OUTWIDTH_SHIFT 3
43#define FSL_AUDMIX_CTR_OUTWIDTH_MASK (0x7 << FSL_AUDMIX_CTR_OUTWIDTH_SHIFT)
44#define FSL_AUDMIX_CTR_OUTWIDTH(i) (((i) << FSL_AUDMIX_CTR_OUTWIDTH_SHIFT)\
45 & FSL_AUDMIX_CTR_OUTWIDTH_MASK)
46#define FSL_AUDMIX_CTR_OUTCKPOL_SHIFT 6
47#define FSL_AUDMIX_CTR_OUTCKPOL_MASK BIT(FSL_AUDMIX_CTR_OUTCKPOL_SHIFT)
48#define FSL_AUDMIX_CTR_OUTCKPOL(i) ((i) << FSL_AUDMIX_CTR_OUTCKPOL_SHIFT)
49#define FSL_AUDMIX_CTR_MASKRTDF_SHIFT 7
50#define FSL_AUDMIX_CTR_MASKRTDF_MASK BIT(FSL_AUDMIX_CTR_MASKRTDF_SHIFT)
51#define FSL_AUDMIX_CTR_MASKRTDF(i) ((i) << FSL_AUDMIX_CTR_MASKRTDF_SHIFT)
52#define FSL_AUDMIX_CTR_MASKCKDF_SHIFT 8
53#define FSL_AUDMIX_CTR_MASKCKDF_MASK BIT(FSL_AUDMIX_CTR_MASKCKDF_SHIFT)
54#define FSL_AUDMIX_CTR_MASKCKDF(i) ((i) << FSL_AUDMIX_CTR_MASKCKDF_SHIFT)
55#define FSL_AUDMIX_CTR_SYNCMODE_SHIFT 9
56#define FSL_AUDMIX_CTR_SYNCMODE_MASK BIT(FSL_AUDMIX_CTR_SYNCMODE_SHIFT)
57#define FSL_AUDMIX_CTR_SYNCMODE(i) ((i) << FSL_AUDMIX_CTR_SYNCMODE_SHIFT)
58#define FSL_AUDMIX_CTR_SYNCSRC_SHIFT 10
59#define FSL_AUDMIX_CTR_SYNCSRC_MASK BIT(FSL_AUDMIX_CTR_SYNCSRC_SHIFT)
60#define FSL_AUDMIX_CTR_SYNCSRC(i) ((i) << FSL_AUDMIX_CTR_SYNCSRC_SHIFT)
61
62/* AUDMIX Status Register */
63#define FSL_AUDMIX_STR_RATEDIFF BIT(0)
64#define FSL_AUDMIX_STR_CLKDIFF BIT(1)
65#define FSL_AUDMIX_STR_MIXSTAT_SHIFT 2
66#define FSL_AUDMIX_STR_MIXSTAT_MASK (0x3 << FSL_AUDMIX_STR_MIXSTAT_SHIFT)
67#define FSL_AUDMIX_STR_MIXSTAT(i) (((i) & FSL_AUDMIX_STR_MIXSTAT_MASK) \
68 >> FSL_AUDMIX_STR_MIXSTAT_SHIFT)
69/* AUDMIX Attenuation Control Register */
70#define FSL_AUDMIX_ATCR_AT_EN BIT(0)
71#define FSL_AUDMIX_ATCR_AT_UPDN BIT(1)
72#define FSL_AUDMIX_ATCR_ATSTPDIF_SHIFT 2
73#define FSL_AUDMIX_ATCR_ATSTPDFI_MASK \
74 (0xfff << FSL_AUDMIX_ATCR_ATSTPDIF_SHIFT)
75
76/* AUDMIX Attenuation Initial Value Register */
77#define FSL_AUDMIX_ATIVAL_ATINVAL_MASK 0x3FFFF
78
79/* AUDMIX Attenuation Step Up Factor Register */
80#define FSL_AUDMIX_ATSTPUP_ATSTEPUP_MASK 0x3FFFF
81
82/* AUDMIX Attenuation Step Down Factor Register */
83#define FSL_AUDMIX_ATSTPDN_ATSTEPDN_MASK 0x3FFFF
84
85/* AUDMIX Attenuation Step Target Register */
86#define FSL_AUDMIX_ATSTPTGT_ATSTPTG_MASK 0x3FFFF
87
88/* AUDMIX Attenuation Value Register */
89#define FSL_AUDMIX_ATTNVAL_ATCURVAL_MASK 0x3FFFF
90
91/* AUDMIX Attenuation Step Number Register */
92#define FSL_AUDMIX_ATSTP_STPCTR_MASK 0x3FFFF
93
94#define FSL_AUDMIX_MAX_DAIS 2
95struct fsl_audmix {
96 struct platform_device *pdev;
97 struct regmap *regmap;
98 struct clk *ipg_clk;
99 spinlock_t lock; /* Protect tdms */
100 u8 tdms;
101};
102
103#endif /* __FSL_AUDMIX_H */
104

source code of linux/sound/soc/fsl/fsl_audmix.h