1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | /* |
3 | * fsl_spdif.h - ALSA S/PDIF interface for the Freescale i.MX SoC |
4 | * |
5 | * Copyright (C) 2013 Freescale Semiconductor, Inc. |
6 | * |
7 | * Author: Nicolin Chen <b42378@freescale.com> |
8 | * |
9 | * Based on fsl_ssi.h |
10 | * Author: Timur Tabi <timur@freescale.com> |
11 | * Copyright 2007-2008 Freescale Semiconductor, Inc. |
12 | */ |
13 | |
14 | #ifndef _FSL_SPDIF_DAI_H |
15 | #define _FSL_SPDIF_DAI_H |
16 | |
17 | /* S/PDIF Register Map */ |
18 | #define REG_SPDIF_SCR 0x0 /* SPDIF Configuration Register */ |
19 | #define REG_SPDIF_SRCD 0x4 /* CDText Control Register */ |
20 | #define REG_SPDIF_SRPC 0x8 /* PhaseConfig Register */ |
21 | #define REG_SPDIF_SIE 0xc /* InterruptEn Register */ |
22 | #define REG_SPDIF_SIS 0x10 /* InterruptStat Register */ |
23 | #define REG_SPDIF_SIC 0x10 /* InterruptClear Register */ |
24 | #define REG_SPDIF_SRL 0x14 /* SPDIFRxLeft Register */ |
25 | #define REG_SPDIF_SRR 0x18 /* SPDIFRxRight Register */ |
26 | #define REG_SPDIF_SRCSH 0x1c /* SPDIFRxCChannel_h Register */ |
27 | #define REG_SPDIF_SRCSL 0x20 /* SPDIFRxCChannel_l Register */ |
28 | #define REG_SPDIF_SRU 0x24 /* UchannelRx Register */ |
29 | #define REG_SPDIF_SRQ 0x28 /* QchannelRx Register */ |
30 | #define REG_SPDIF_STL 0x2C /* SPDIFTxLeft Register */ |
31 | #define REG_SPDIF_STR 0x30 /* SPDIFTxRight Register */ |
32 | #define REG_SPDIF_STCSCH 0x34 /* SPDIFTxCChannelCons_h Register */ |
33 | #define REG_SPDIF_STCSCL 0x38 /* SPDIFTxCChannelCons_l Register */ |
34 | #define REG_SPDIF_STCSPH 0x3C /* SPDIFTxCChannel_Prof_h Register */ |
35 | #define REG_SPDIF_STCSPL 0x40 /* SPDIFTxCChannel_Prof_l Register */ |
36 | #define REG_SPDIF_SRFM 0x44 /* FreqMeas Register */ |
37 | #define REG_SPDIF_STC 0x50 /* SPDIFTxClk Register */ |
38 | |
39 | #define REG_SPDIF_SRCCA_31_0 0x60 /* SPDIF receive C channel register, bits 31-0 */ |
40 | #define REG_SPDIF_SRCCA_63_32 0x64 /* SPDIF receive C channel register, bits 63-32 */ |
41 | #define REG_SPDIF_SRCCA_95_64 0x68 /* SPDIF receive C channel register, bits 95-64 */ |
42 | #define REG_SPDIF_SRCCA_127_96 0x6C /* SPDIF receive C channel register, bits 127-96 */ |
43 | #define REG_SPDIF_SRCCA_159_128 0x70 /* SPDIF receive C channel register, bits 159-128 */ |
44 | #define REG_SPDIF_SRCCA_191_160 0x74 /* SPDIF receive C channel register, bits 191-160 */ |
45 | #define REG_SPDIF_STCCA_31_0 0x78 /* SPDIF transmit C channel register, bits 31-0 */ |
46 | #define REG_SPDIF_STCCA_63_32 0x7C /* SPDIF transmit C channel register, bits 63-32 */ |
47 | #define REG_SPDIF_STCCA_95_64 0x80 /* SPDIF transmit C channel register, bits 95-64 */ |
48 | #define REG_SPDIF_STCCA_127_96 0x84 /* SPDIF transmit C channel register, bits 127-96 */ |
49 | #define REG_SPDIF_STCCA_159_128 0x88 /* SPDIF transmit C channel register, bits 159-128 */ |
50 | #define REG_SPDIF_STCCA_191_160 0x8C /* SPDIF transmit C channel register, bits 191-160 */ |
51 | |
52 | /* SPDIF Configuration register */ |
53 | #define SCR_RXFIFO_CTL_OFFSET 23 |
54 | #define SCR_RXFIFO_CTL_MASK (1 << SCR_RXFIFO_CTL_OFFSET) |
55 | #define SCR_RXFIFO_CTL_ZERO (1 << SCR_RXFIFO_CTL_OFFSET) |
56 | #define SCR_RXFIFO_OFF_OFFSET 22 |
57 | #define SCR_RXFIFO_OFF_MASK (1 << SCR_RXFIFO_OFF_OFFSET) |
58 | #define SCR_RXFIFO_OFF (1 << SCR_RXFIFO_OFF_OFFSET) |
59 | #define SCR_RXFIFO_RST_OFFSET 21 |
60 | #define SCR_RXFIFO_RST_MASK (1 << SCR_RXFIFO_RST_OFFSET) |
61 | #define SCR_RXFIFO_RST (1 << SCR_RXFIFO_RST_OFFSET) |
62 | #define SCR_RXFIFO_FSEL_OFFSET 19 |
63 | #define SCR_RXFIFO_FSEL_MASK (0x3 << SCR_RXFIFO_FSEL_OFFSET) |
64 | #define SCR_RXFIFO_FSEL_IF0 (0x0 << SCR_RXFIFO_FSEL_OFFSET) |
65 | #define SCR_RXFIFO_FSEL_IF4 (0x1 << SCR_RXFIFO_FSEL_OFFSET) |
66 | #define SCR_RXFIFO_FSEL_IF8 (0x2 << SCR_RXFIFO_FSEL_OFFSET) |
67 | #define SCR_RXFIFO_FSEL_IF12 (0x3 << SCR_RXFIFO_FSEL_OFFSET) |
68 | #define SCR_RXFIFO_AUTOSYNC_OFFSET 18 |
69 | #define SCR_RXFIFO_AUTOSYNC_MASK (1 << SCR_RXFIFO_AUTOSYNC_OFFSET) |
70 | #define SCR_RXFIFO_AUTOSYNC (1 << SCR_RXFIFO_AUTOSYNC_OFFSET) |
71 | #define SCR_TXFIFO_AUTOSYNC_OFFSET 17 |
72 | #define SCR_TXFIFO_AUTOSYNC_MASK (1 << SCR_TXFIFO_AUTOSYNC_OFFSET) |
73 | #define SCR_TXFIFO_AUTOSYNC (1 << SCR_TXFIFO_AUTOSYNC_OFFSET) |
74 | #define SCR_TXFIFO_FSEL_OFFSET 15 |
75 | #define SCR_TXFIFO_FSEL_MASK (0x3 << SCR_TXFIFO_FSEL_OFFSET) |
76 | #define SCR_TXFIFO_FSEL_IF0 (0x0 << SCR_TXFIFO_FSEL_OFFSET) |
77 | #define SCR_TXFIFO_FSEL_IF4 (0x1 << SCR_TXFIFO_FSEL_OFFSET) |
78 | #define SCR_TXFIFO_FSEL_IF8 (0x2 << SCR_TXFIFO_FSEL_OFFSET) |
79 | #define SCR_TXFIFO_FSEL_IF12 (0x3 << SCR_TXFIFO_FSEL_OFFSET) |
80 | #define SCR_RAW_CAPTURE_MODE BIT(14) |
81 | #define SCR_LOW_POWER (1 << 13) |
82 | #define SCR_SOFT_RESET (1 << 12) |
83 | #define SCR_TXFIFO_CTRL_OFFSET 10 |
84 | #define SCR_TXFIFO_CTRL_MASK (0x3 << SCR_TXFIFO_CTRL_OFFSET) |
85 | #define SCR_TXFIFO_CTRL_ZERO (0x0 << SCR_TXFIFO_CTRL_OFFSET) |
86 | #define SCR_TXFIFO_CTRL_NORMAL (0x1 << SCR_TXFIFO_CTRL_OFFSET) |
87 | #define SCR_TXFIFO_CTRL_ONESAMPLE (0x2 << SCR_TXFIFO_CTRL_OFFSET) |
88 | #define SCR_DMA_RX_EN_OFFSET 9 |
89 | #define SCR_DMA_RX_EN_MASK (1 << SCR_DMA_RX_EN_OFFSET) |
90 | #define SCR_DMA_RX_EN (1 << SCR_DMA_RX_EN_OFFSET) |
91 | #define SCR_DMA_TX_EN_OFFSET 8 |
92 | #define SCR_DMA_TX_EN_MASK (1 << SCR_DMA_TX_EN_OFFSET) |
93 | #define SCR_DMA_TX_EN (1 << SCR_DMA_TX_EN_OFFSET) |
94 | #define SCR_VAL_OFFSET 5 |
95 | #define SCR_VAL_MASK (1 << SCR_VAL_OFFSET) |
96 | #define SCR_VAL_CLEAR (1 << SCR_VAL_OFFSET) |
97 | #define SCR_TXSEL_OFFSET 2 |
98 | #define SCR_TXSEL_MASK (0x7 << SCR_TXSEL_OFFSET) |
99 | #define SCR_TXSEL_OFF (0 << SCR_TXSEL_OFFSET) |
100 | #define SCR_TXSEL_RX (1 << SCR_TXSEL_OFFSET) |
101 | #define SCR_TXSEL_NORMAL (0x5 << SCR_TXSEL_OFFSET) |
102 | #define SCR_USRC_SEL_OFFSET 0x0 |
103 | #define SCR_USRC_SEL_MASK (0x3 << SCR_USRC_SEL_OFFSET) |
104 | #define SCR_USRC_SEL_NONE (0x0 << SCR_USRC_SEL_OFFSET) |
105 | #define SCR_USRC_SEL_RECV (0x1 << SCR_USRC_SEL_OFFSET) |
106 | #define SCR_USRC_SEL_CHIP (0x3 << SCR_USRC_SEL_OFFSET) |
107 | |
108 | #define SCR_DMA_xX_EN(tx) (tx ? SCR_DMA_TX_EN : SCR_DMA_RX_EN) |
109 | |
110 | /* SPDIF CDText control */ |
111 | #define SRCD_CD_USER_OFFSET 1 |
112 | #define SRCD_CD_USER (1 << SRCD_CD_USER_OFFSET) |
113 | |
114 | /* SPDIF Phase Configuration register */ |
115 | #define SRPC_DPLL_LOCKED (1 << 6) |
116 | #define SRPC_CLKSRC_SEL_OFFSET 7 |
117 | #define SRPC_CLKSRC_SEL_MASK (0xf << SRPC_CLKSRC_SEL_OFFSET) |
118 | #define SRPC_CLKSRC_SEL_SET(x) ((x << SRPC_CLKSRC_SEL_OFFSET) & SRPC_CLKSRC_SEL_MASK) |
119 | #define SRPC_CLKSRC_SEL_LOCKED_OFFSET1 5 |
120 | #define SRPC_CLKSRC_SEL_LOCKED_OFFSET2 2 |
121 | #define SRPC_GAINSEL_OFFSET 3 |
122 | #define SRPC_GAINSEL_MASK (0x7 << SRPC_GAINSEL_OFFSET) |
123 | #define SRPC_GAINSEL_SET(x) ((x << SRPC_GAINSEL_OFFSET) & SRPC_GAINSEL_MASK) |
124 | |
125 | #define SRPC_CLKSRC_MAX 16 |
126 | |
127 | enum spdif_gainsel { |
128 | GAINSEL_MULTI_24 = 0, |
129 | GAINSEL_MULTI_16, |
130 | GAINSEL_MULTI_12, |
131 | GAINSEL_MULTI_8, |
132 | GAINSEL_MULTI_6, |
133 | GAINSEL_MULTI_4, |
134 | GAINSEL_MULTI_3, |
135 | }; |
136 | #define GAINSEL_MULTI_MAX (GAINSEL_MULTI_3 + 1) |
137 | #define SPDIF_DEFAULT_GAINSEL GAINSEL_MULTI_8 |
138 | |
139 | /* SPDIF interrupt mask define */ |
140 | #define INT_DPLL_LOCKED (1 << 20) |
141 | #define INT_TXFIFO_UNOV (1 << 19) |
142 | #define INT_TXFIFO_RESYNC (1 << 18) |
143 | #define INT_CNEW (1 << 17) |
144 | #define INT_VAL_NOGOOD (1 << 16) |
145 | #define INT_SYM_ERR (1 << 15) |
146 | #define INT_BIT_ERR (1 << 14) |
147 | #define INT_URX_FUL (1 << 10) |
148 | #define INT_URX_OV (1 << 9) |
149 | #define INT_QRX_FUL (1 << 8) |
150 | #define INT_QRX_OV (1 << 7) |
151 | #define INT_UQ_SYNC (1 << 6) |
152 | #define INT_UQ_ERR (1 << 5) |
153 | #define INT_RXFIFO_UNOV (1 << 4) |
154 | #define INT_RXFIFO_RESYNC (1 << 3) |
155 | #define INT_LOSS_LOCK (1 << 2) |
156 | #define INT_TX_EM (1 << 1) |
157 | #define INT_RXFIFO_FUL (1 << 0) |
158 | |
159 | /* SPDIF Clock register */ |
160 | #define STC_SYSCLK_DF_OFFSET 11 |
161 | #define STC_SYSCLK_DF_MASK (0x1ff << STC_SYSCLK_DF_OFFSET) |
162 | #define STC_SYSCLK_DF(x) ((((x) - 1) << STC_SYSCLK_DF_OFFSET) & STC_SYSCLK_DF_MASK) |
163 | #define STC_TXCLK_SRC_OFFSET 8 |
164 | #define STC_TXCLK_SRC_MASK (0x7 << STC_TXCLK_SRC_OFFSET) |
165 | #define STC_TXCLK_SRC_SET(x) ((x << STC_TXCLK_SRC_OFFSET) & STC_TXCLK_SRC_MASK) |
166 | #define STC_TXCLK_ALL_EN_OFFSET 7 |
167 | #define STC_TXCLK_ALL_EN_MASK (1 << STC_TXCLK_ALL_EN_OFFSET) |
168 | #define STC_TXCLK_ALL_EN (1 << STC_TXCLK_ALL_EN_OFFSET) |
169 | #define STC_TXCLK_DF_OFFSET 0 |
170 | #define STC_TXCLK_DF_MASK (0x7f << STC_TXCLK_DF_OFFSET) |
171 | #define STC_TXCLK_DF(x) ((((x) - 1) << STC_TXCLK_DF_OFFSET) & STC_TXCLK_DF_MASK) |
172 | #define STC_TXCLK_SRC_MAX 8 |
173 | |
174 | #define STC_TXCLK_SPDIF_ROOT 1 |
175 | |
176 | /* SPDIF tx rate */ |
177 | enum spdif_txrate { |
178 | SPDIF_TXRATE_22050 = 0, |
179 | SPDIF_TXRATE_32000, |
180 | SPDIF_TXRATE_44100, |
181 | SPDIF_TXRATE_48000, |
182 | SPDIF_TXRATE_88200, |
183 | SPDIF_TXRATE_96000, |
184 | SPDIF_TXRATE_176400, |
185 | SPDIF_TXRATE_192000, |
186 | }; |
187 | #define SPDIF_TXRATE_MAX (SPDIF_TXRATE_192000 + 1) |
188 | |
189 | |
190 | #define SPDIF_CSTATUS_BYTE 6 |
191 | #define SPDIF_UBITS_SIZE 96 |
192 | #define SPDIF_QSUB_SIZE (SPDIF_UBITS_SIZE / 8) |
193 | |
194 | |
195 | #define FSL_SPDIF_RATES_PLAYBACK (SNDRV_PCM_RATE_22050 | \ |
196 | SNDRV_PCM_RATE_32000 | \ |
197 | SNDRV_PCM_RATE_44100 | \ |
198 | SNDRV_PCM_RATE_48000 | \ |
199 | SNDRV_PCM_RATE_88200 | \ |
200 | SNDRV_PCM_RATE_96000 | \ |
201 | SNDRV_PCM_RATE_176400 | \ |
202 | SNDRV_PCM_RATE_192000) |
203 | |
204 | #define FSL_SPDIF_RATES_CAPTURE (SNDRV_PCM_RATE_16000 | \ |
205 | SNDRV_PCM_RATE_32000 | \ |
206 | SNDRV_PCM_RATE_44100 | \ |
207 | SNDRV_PCM_RATE_48000 | \ |
208 | SNDRV_PCM_RATE_88200 | \ |
209 | SNDRV_PCM_RATE_64000 | \ |
210 | SNDRV_PCM_RATE_96000 | \ |
211 | SNDRV_PCM_RATE_176400 | \ |
212 | SNDRV_PCM_RATE_192000) |
213 | |
214 | #define FSL_SPDIF_FORMATS_PLAYBACK (SNDRV_PCM_FMTBIT_S16_LE | \ |
215 | SNDRV_PCM_FMTBIT_S20_3LE | \ |
216 | SNDRV_PCM_FMTBIT_S24_LE) |
217 | |
218 | #define FSL_SPDIF_FORMATS_CAPTURE (SNDRV_PCM_FMTBIT_S24_LE) |
219 | |
220 | #endif /* _FSL_SPDIF_DAI_H */ |
221 | |