xref: /linux/sound/soc/tegra/tegra20_spdif.h (revision 03ab8e6297acd1bc0eedaa050e2a1635c576fd11)
1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * tegra20_spdif.h - Definitions for Tegra20 SPDIF driver
4  *
5  * Author: Stephen Warren <swarren@nvidia.com>
6  * Copyright (C) 2011 - NVIDIA, Inc.
7  *
8  * Based on code copyright/by:
9  * Copyright (c) 2008-2009, NVIDIA Corporation
10  */
11 
12 #ifndef __TEGRA20_SPDIF_H__
13 #define __TEGRA20_SPDIF_H__
14 
15 #include "tegra_pcm.h"
16 
17 /* Offsets from TEGRA20_SPDIF_BASE */
18 
19 #define TEGRA20_SPDIF_CTRL					0x0
20 #define TEGRA20_SPDIF_STATUS					0x4
21 #define TEGRA20_SPDIF_STROBE_CTRL				0x8
22 #define TEGRA20_SPDIF_DATA_FIFO_CSR				0x0C
23 #define TEGRA20_SPDIF_DATA_OUT					0x40
24 #define TEGRA20_SPDIF_DATA_IN					0x80
25 #define TEGRA20_SPDIF_CH_STA_RX_A				0x100
26 #define TEGRA20_SPDIF_CH_STA_RX_B				0x104
27 #define TEGRA20_SPDIF_CH_STA_RX_C				0x108
28 #define TEGRA20_SPDIF_CH_STA_RX_D				0x10C
29 #define TEGRA20_SPDIF_CH_STA_RX_E				0x110
30 #define TEGRA20_SPDIF_CH_STA_RX_F				0x114
31 #define TEGRA20_SPDIF_CH_STA_TX_A				0x140
32 #define TEGRA20_SPDIF_CH_STA_TX_B				0x144
33 #define TEGRA20_SPDIF_CH_STA_TX_C				0x148
34 #define TEGRA20_SPDIF_CH_STA_TX_D				0x14C
35 #define TEGRA20_SPDIF_CH_STA_TX_E				0x150
36 #define TEGRA20_SPDIF_CH_STA_TX_F				0x154
37 #define TEGRA20_SPDIF_USR_STA_RX_A				0x180
38 #define TEGRA20_SPDIF_USR_DAT_TX_A				0x1C0
39 
40 /* Fields in TEGRA20_SPDIF_CTRL */
41 
42 /* Start capturing from 0=right, 1=left channel */
43 #define TEGRA20_SPDIF_CTRL_CAP_LC				(1 << 30)
44 
45 /* SPDIF receiver(RX) enable */
46 #define TEGRA20_SPDIF_CTRL_RX_EN				(1 << 29)
47 
48 /* SPDIF Transmitter(TX) enable */
49 #define TEGRA20_SPDIF_CTRL_TX_EN				(1 << 28)
50 
51 /* Transmit Channel status */
52 #define TEGRA20_SPDIF_CTRL_TC_EN				(1 << 27)
53 
54 /* Transmit user Data */
55 #define TEGRA20_SPDIF_CTRL_TU_EN				(1 << 26)
56 
57 /* Interrupt on transmit error */
58 #define TEGRA20_SPDIF_CTRL_IE_TXE				(1 << 25)
59 
60 /* Interrupt on receive error */
61 #define TEGRA20_SPDIF_CTRL_IE_RXE				(1 << 24)
62 
63 /* Interrupt on invalid preamble */
64 #define TEGRA20_SPDIF_CTRL_IE_P					(1 << 23)
65 
66 /* Interrupt on "B" preamble */
67 #define TEGRA20_SPDIF_CTRL_IE_B					(1 << 22)
68 
69 /* Interrupt when block of channel status received */
70 #define TEGRA20_SPDIF_CTRL_IE_C					(1 << 21)
71 
72 /* Interrupt when a valid information unit (IU) is received */
73 #define TEGRA20_SPDIF_CTRL_IE_U					(1 << 20)
74 
75 /* Interrupt when RX user FIFO attention level is reached */
76 #define TEGRA20_SPDIF_CTRL_QE_RU				(1 << 19)
77 
78 /* Interrupt when TX user FIFO attention level is reached */
79 #define TEGRA20_SPDIF_CTRL_QE_TU				(1 << 18)
80 
81 /* Interrupt when RX data FIFO attention level is reached */
82 #define TEGRA20_SPDIF_CTRL_QE_RX				(1 << 17)
83 
84 /* Interrupt when TX data FIFO attention level is reached */
85 #define TEGRA20_SPDIF_CTRL_QE_TX				(1 << 16)
86 
87 /* Loopback test mode enable */
88 #define TEGRA20_SPDIF_CTRL_LBK_EN				(1 << 15)
89 
90 /*
91  * Pack data mode:
92  * 0 = Single data (16 bit needs to be  padded to match the
93  *     interface data bit size).
94  * 1 = Packeted left/right channel data into a single word.
95  */
96 #define TEGRA20_SPDIF_CTRL_PACK					(1 << 14)
97 
98 /*
99  * 00 = 16bit data
100  * 01 = 20bit data
101  * 10 = 24bit data
102  * 11 = raw data
103  */
104 #define TEGRA20_SPDIF_BIT_MODE_16BIT				0
105 #define TEGRA20_SPDIF_BIT_MODE_20BIT				1
106 #define TEGRA20_SPDIF_BIT_MODE_24BIT				2
107 #define TEGRA20_SPDIF_BIT_MODE_RAW				3
108 
109 #define TEGRA20_SPDIF_CTRL_BIT_MODE_SHIFT			12
110 #define TEGRA20_SPDIF_CTRL_BIT_MODE_MASK			(3                            << TEGRA20_SPDIF_CTRL_BIT_MODE_SHIFT)
111 #define TEGRA20_SPDIF_CTRL_BIT_MODE_16BIT			(TEGRA20_SPDIF_BIT_MODE_16BIT << TEGRA20_SPDIF_CTRL_BIT_MODE_SHIFT)
112 #define TEGRA20_SPDIF_CTRL_BIT_MODE_20BIT			(TEGRA20_SPDIF_BIT_MODE_20BIT << TEGRA20_SPDIF_CTRL_BIT_MODE_SHIFT)
113 #define TEGRA20_SPDIF_CTRL_BIT_MODE_24BIT			(TEGRA20_SPDIF_BIT_MODE_24BIT << TEGRA20_SPDIF_CTRL_BIT_MODE_SHIFT)
114 #define TEGRA20_SPDIF_CTRL_BIT_MODE_RAW				(TEGRA20_SPDIF_BIT_MODE_RAW   << TEGRA20_SPDIF_CTRL_BIT_MODE_SHIFT)
115 
116 /* Fields in TEGRA20_SPDIF_STATUS */
117 
118 /*
119  * Note: IS_P, IS_B, IS_C, and IS_U are sticky bits. Software must
120  * write a 1 to the corresponding bit location to clear the status.
121  */
122 
123 /*
124  * Receiver(RX) shifter is busy receiving data.
125  * This bit is asserted when the receiver first locked onto the
126  * preamble of the data stream after RX_EN is asserted. This bit is
127  * deasserted when either,
128  * (a) the end of a frame is reached after RX_EN is deeasserted, or
129  * (b) the SPDIF data stream becomes inactive.
130  */
131 #define TEGRA20_SPDIF_STATUS_RX_BSY				(1 << 29)
132 
133 /*
134  * Transmitter(TX) shifter is busy transmitting data.
135  * This bit is asserted when TX_EN is asserted.
136  * This bit is deasserted when the end of a frame is reached after
137  * TX_EN is deasserted.
138  */
139 #define TEGRA20_SPDIF_STATUS_TX_BSY				(1 << 28)
140 
141 /*
142  * TX is busy shifting out channel status.
143  * This bit is asserted when both TX_EN and TC_EN are asserted and
144  * data from CH_STA_TX_A register is loaded into the internal shifter.
145  * This bit is deasserted when either,
146  * (a) the end of a frame is reached after TX_EN is deasserted, or
147  * (b) CH_STA_TX_F register is loaded into the internal shifter.
148  */
149 #define TEGRA20_SPDIF_STATUS_TC_BSY				(1 << 27)
150 
151 /*
152  * TX User data FIFO busy.
153  * This bit is asserted when TX_EN and TXU_EN are asserted and
154  * there's data in the TX user FIFO.  This bit is deassert when either,
155  * (a) the end of a frame is reached after TX_EN is deasserted, or
156  * (b) there's no data left in the TX user FIFO.
157  */
158 #define TEGRA20_SPDIF_STATUS_TU_BSY				(1 << 26)
159 
160 /* TX FIFO Underrun error status */
161 #define TEGRA20_SPDIF_STATUS_TX_ERR				(1 << 25)
162 
163 /* RX FIFO Overrun error status */
164 #define TEGRA20_SPDIF_STATUS_RX_ERR				(1 << 24)
165 
166 /* Preamble status: 0=Preamble OK, 1=bad/missing preamble */
167 #define TEGRA20_SPDIF_STATUS_IS_P				(1 << 23)
168 
169 /* B-preamble detection status: 0=not detected, 1=B-preamble detected */
170 #define TEGRA20_SPDIF_STATUS_IS_B				(1 << 22)
171 
172 /*
173  * RX channel block data receive status:
174  * 0=entire block not recieved yet.
175  * 1=received entire block of channel status,
176  */
177 #define TEGRA20_SPDIF_STATUS_IS_C				(1 << 21)
178 
179 /* RX User Data Valid flag:  1=valid IU detected, 0 = no IU detected. */
180 #define TEGRA20_SPDIF_STATUS_IS_U				(1 << 20)
181 
182 /*
183  * RX User FIFO Status:
184  * 1=attention level reached, 0=attention level not reached.
185  */
186 #define TEGRA20_SPDIF_STATUS_QS_RU				(1 << 19)
187 
188 /*
189  * TX User FIFO Status:
190  * 1=attention level reached, 0=attention level not reached.
191  */
192 #define TEGRA20_SPDIF_STATUS_QS_TU				(1 << 18)
193 
194 /*
195  * RX Data FIFO Status:
196  * 1=attention level reached, 0=attention level not reached.
197  */
198 #define TEGRA20_SPDIF_STATUS_QS_RX				(1 << 17)
199 
200 /*
201  * TX Data FIFO Status:
202  * 1=attention level reached, 0=attention level not reached.
203  */
204 #define TEGRA20_SPDIF_STATUS_QS_TX				(1 << 16)
205 
206 /* Fields in TEGRA20_SPDIF_STROBE_CTRL */
207 
208 /*
209  * Indicates the approximate number of detected SPDIFIN clocks within a
210  * bi-phase period.
211  */
212 #define TEGRA20_SPDIF_STROBE_CTRL_PERIOD_SHIFT			16
213 #define TEGRA20_SPDIF_STROBE_CTRL_PERIOD_MASK			(0xff << TEGRA20_SPDIF_STROBE_CTRL_PERIOD_SHIFT)
214 
215 /* Data strobe mode: 0=Auto-locked 1=Manual locked */
216 #define TEGRA20_SPDIF_STROBE_CTRL_STROBE			(1 << 15)
217 
218 /*
219  * Manual data strobe time within the bi-phase clock period (in terms of
220  * the number of over-sampling clocks).
221  */
222 #define TEGRA20_SPDIF_STROBE_CTRL_DATA_STROBES_SHIFT		8
223 #define TEGRA20_SPDIF_STROBE_CTRL_DATA_STROBES_MASK		(0x1f << TEGRA20_SPDIF_STROBE_CTRL_DATA_STROBES_SHIFT)
224 
225 /*
226  * Manual SPDIFIN bi-phase clock period (in terms of the number of
227  * over-sampling clocks).
228  */
229 #define TEGRA20_SPDIF_STROBE_CTRL_CLOCK_PERIOD_SHIFT		0
230 #define TEGRA20_SPDIF_STROBE_CTRL_CLOCK_PERIOD_MASK		(0x3f << TEGRA20_SPDIF_STROBE_CTRL_CLOCK_PERIOD_SHIFT)
231 
232 /* Fields in SPDIF_DATA_FIFO_CSR */
233 
234 /* Clear Receiver User FIFO (RX USR.FIFO) */
235 #define TEGRA20_SPDIF_DATA_FIFO_CSR_RU_CLR			(1 << 31)
236 
237 #define TEGRA20_SPDIF_FIFO_ATN_LVL_U_ONE_SLOT			0
238 #define TEGRA20_SPDIF_FIFO_ATN_LVL_U_TWO_SLOTS			1
239 #define TEGRA20_SPDIF_FIFO_ATN_LVL_U_THREE_SLOTS		2
240 #define TEGRA20_SPDIF_FIFO_ATN_LVL_U_FOUR_SLOTS			3
241 
242 /* RU FIFO attention level */
243 #define TEGRA20_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_SHIFT		29
244 #define TEGRA20_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_MASK		\
245 		(0x3                                      << TEGRA20_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_SHIFT)
246 #define TEGRA20_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_RU1_WORD_FULL	\
247 		(TEGRA20_SPDIF_FIFO_ATN_LVL_U_ONE_SLOT    << TEGRA20_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_SHIFT)
248 #define TEGRA20_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_RU2_WORD_FULL	\
249 		(TEGRA20_SPDIF_FIFO_ATN_LVL_U_TWO_SLOTS   << TEGRA20_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_SHIFT)
250 #define TEGRA20_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_RU3_WORD_FULL	\
251 		(TEGRA20_SPDIF_FIFO_ATN_LVL_U_THREE_SLOTS << TEGRA20_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_SHIFT)
252 #define TEGRA20_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_RU4_WORD_FULL	\
253 		(TEGRA20_SPDIF_FIFO_ATN_LVL_U_FOUR_SLOTS  << TEGRA20_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_SHIFT)
254 
255 /* Number of RX USR.FIFO levels with valid data. */
256 #define TEGRA20_SPDIF_DATA_FIFO_CSR_RU_FULL_COUNT_SHIFT		24
257 #define TEGRA20_SPDIF_DATA_FIFO_CSR_RU_FULL_COUNT_MASK		(0x1f << TEGRA20_SPDIF_DATA_FIFO_CSR_RU_FULL_COUNT_SHIFT)
258 
259 /* Clear Transmitter User FIFO (TX USR.FIFO) */
260 #define TEGRA20_SPDIF_DATA_FIFO_CSR_TU_CLR			(1 << 23)
261 
262 /* TU FIFO attention level */
263 #define TEGRA20_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_SHIFT		21
264 #define TEGRA20_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_MASK		\
265 		(0x3                                      << TEGRA20_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_SHIFT)
266 #define TEGRA20_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_TU1_WORD_FULL	\
267 		(TEGRA20_SPDIF_FIFO_ATN_LVL_U_ONE_SLOT    << TEGRA20_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_SHIFT)
268 #define TEGRA20_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_TU2_WORD_FULL	\
269 		(TEGRA20_SPDIF_FIFO_ATN_LVL_U_TWO_SLOTS   << TEGRA20_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_SHIFT)
270 #define TEGRA20_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_TU3_WORD_FULL	\
271 		(TEGRA20_SPDIF_FIFO_ATN_LVL_U_THREE_SLOTS << TEGRA20_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_SHIFT)
272 #define TEGRA20_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_TU4_WORD_FULL	\
273 		(TEGRA20_SPDIF_FIFO_ATN_LVL_U_FOUR_SLOTS  << TEGRA20_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_SHIFT)
274 
275 /* Number of TX USR.FIFO levels that could be filled. */
276 #define TEGRA20_SPDIF_DATA_FIFO_CSR_TU_EMPTY_COUNT_SHIFT	16
277 #define TEGRA20_SPDIF_DATA_FIFO_CSR_TU_EMPTY_COUNT_MASK		(0x1f << SPDIF_DATA_FIFO_CSR_TU_EMPTY_COUNT_SHIFT)
278 
279 /* Clear Receiver Data FIFO (RX DATA.FIFO) */
280 #define TEGRA20_SPDIF_DATA_FIFO_CSR_RX_CLR			(1 << 15)
281 
282 #define TEGRA20_SPDIF_FIFO_ATN_LVL_D_ONE_SLOT			0
283 #define TEGRA20_SPDIF_FIFO_ATN_LVL_D_FOUR_SLOTS			1
284 #define TEGRA20_SPDIF_FIFO_ATN_LVL_D_EIGHT_SLOTS		2
285 #define TEGRA20_SPDIF_FIFO_ATN_LVL_D_TWELVE_SLOTS		3
286 
287 /* RU FIFO attention level */
288 #define TEGRA20_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_SHIFT		13
289 #define TEGRA20_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_MASK		\
290 		(0x3                                       << TEGRA20_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_SHIFT)
291 #define TEGRA20_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_RU1_WORD_FULL	\
292 		(TEGRA20_SPDIF_FIFO_ATN_LVL_D_ONE_SLOT     << TEGRA20_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_SHIFT)
293 #define TEGRA20_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_RU4_WORD_FULL	\
294 		(TEGRA20_SPDIF_FIFO_ATN_LVL_D_FOUR_SLOTS   << TEGRA20_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_SHIFT)
295 #define TEGRA20_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_RU8_WORD_FULL	\
296 		(TEGRA20_SPDIF_FIFO_ATN_LVL_D_EIGHT_SLOTS  << TEGRA20_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_SHIFT)
297 #define TEGRA20_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_RU12_WORD_FULL	\
298 		(TEGRA20_SPDIF_FIFO_ATN_LVL_D_TWELVE_SLOTS << TEGRA20_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_SHIFT)
299 
300 /* Number of RX DATA.FIFO levels with valid data. */
301 #define TEGRA20_SPDIF_DATA_FIFO_CSR_RX_FULL_COUNT_SHIFT		8
302 #define TEGRA20_SPDIF_DATA_FIFO_CSR_RX_FULL_COUNT_MASK		(0x1f << TEGRA20_SPDIF_DATA_FIFO_CSR_RX_FULL_COUNT_SHIFT)
303 
304 /* Clear Transmitter Data FIFO (TX DATA.FIFO) */
305 #define TEGRA20_SPDIF_DATA_FIFO_CSR_TX_CLR			(1 << 7)
306 
307 /* TU FIFO attention level */
308 #define TEGRA20_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_SHIFT		5
309 #define TEGRA20_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_MASK		\
310 		(0x3                                       << TEGRA20_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_SHIFT)
311 #define TEGRA20_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_TU1_WORD_FULL	\
312 		(TEGRA20_SPDIF_FIFO_ATN_LVL_D_ONE_SLOT     << TEGRA20_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_SHIFT)
313 #define TEGRA20_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_TU4_WORD_FULL	\
314 		(TEGRA20_SPDIF_FIFO_ATN_LVL_D_FOUR_SLOTS   << TEGRA20_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_SHIFT)
315 #define TEGRA20_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_TU8_WORD_FULL	\
316 		(TEGRA20_SPDIF_FIFO_ATN_LVL_D_EIGHT_SLOTS  << TEGRA20_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_SHIFT)
317 #define TEGRA20_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_TU12_WORD_FULL	\
318 		(TEGRA20_SPDIF_FIFO_ATN_LVL_D_TWELVE_SLOTS << TEGRA20_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_SHIFT)
319 
320 /* Number of TX DATA.FIFO levels that could be filled. */
321 #define TEGRA20_SPDIF_DATA_FIFO_CSR_TX_EMPTY_COUNT_SHIFT	0
322 #define TEGRA20_SPDIF_DATA_FIFO_CSR_TX_EMPTY_COUNT_MASK		(0x1f << SPDIF_DATA_FIFO_CSR_TX_EMPTY_COUNT_SHIFT)
323 
324 /* Fields in TEGRA20_SPDIF_DATA_OUT */
325 
326 /*
327  * This register has 5 different formats:
328  * 16-bit        (BIT_MODE=00, PACK=0)
329  * 20-bit        (BIT_MODE=01, PACK=0)
330  * 24-bit        (BIT_MODE=10, PACK=0)
331  * raw           (BIT_MODE=11, PACK=0)
332  * 16-bit packed (BIT_MODE=00, PACK=1)
333  */
334 
335 #define TEGRA20_SPDIF_DATA_OUT_DATA_16_SHIFT			0
336 #define TEGRA20_SPDIF_DATA_OUT_DATA_16_MASK			(0xffff << TEGRA20_SPDIF_DATA_OUT_DATA_16_SHIFT)
337 
338 #define TEGRA20_SPDIF_DATA_OUT_DATA_20_SHIFT			0
339 #define TEGRA20_SPDIF_DATA_OUT_DATA_20_MASK			(0xfffff << TEGRA20_SPDIF_DATA_OUT_DATA_20_SHIFT)
340 
341 #define TEGRA20_SPDIF_DATA_OUT_DATA_24_SHIFT			0
342 #define TEGRA20_SPDIF_DATA_OUT_DATA_24_MASK			(0xffffff << TEGRA20_SPDIF_DATA_OUT_DATA_24_SHIFT)
343 
344 #define TEGRA20_SPDIF_DATA_OUT_DATA_RAW_P			(1 << 31)
345 #define TEGRA20_SPDIF_DATA_OUT_DATA_RAW_C			(1 << 30)
346 #define TEGRA20_SPDIF_DATA_OUT_DATA_RAW_U			(1 << 29)
347 #define TEGRA20_SPDIF_DATA_OUT_DATA_RAW_V			(1 << 28)
348 
349 #define TEGRA20_SPDIF_DATA_OUT_DATA_RAW_DATA_SHIFT		8
350 #define TEGRA20_SPDIF_DATA_OUT_DATA_RAW_DATA_MASK		(0xfffff << TEGRA20_SPDIF_DATA_OUT_DATA_RAW_DATA_SHIFT)
351 
352 #define TEGRA20_SPDIF_DATA_OUT_DATA_RAW_AUX_SHIFT		4
353 #define TEGRA20_SPDIF_DATA_OUT_DATA_RAW_AUX_MASK		(0xf << TEGRA20_SPDIF_DATA_OUT_DATA_RAW_AUX_SHIFT)
354 
355 #define TEGRA20_SPDIF_DATA_OUT_DATA_RAW_PREAMBLE_SHIFT		0
356 #define TEGRA20_SPDIF_DATA_OUT_DATA_RAW_PREAMBLE_MASK		(0xf << TEGRA20_SPDIF_DATA_OUT_DATA_RAW_PREAMBLE_SHIFT)
357 
358 #define TEGRA20_SPDIF_DATA_OUT_DATA_16_PACKED_RIGHT_SHIFT	16
359 #define TEGRA20_SPDIF_DATA_OUT_DATA_16_PACKED_RIGHT_MASK	(0xffff << TEGRA20_SPDIF_DATA_OUT_DATA_16_PACKED_RIGHT_SHIFT)
360 
361 #define TEGRA20_SPDIF_DATA_OUT_DATA_16_PACKED_LEFT_SHIFT	0
362 #define TEGRA20_SPDIF_DATA_OUT_DATA_16_PACKED_LEFT_MASK		(0xffff << TEGRA20_SPDIF_DATA_OUT_DATA_16_PACKED_LEFT_SHIFT)
363 
364 /* Fields in TEGRA20_SPDIF_DATA_IN */
365 
366 /*
367  * This register has 5 different formats:
368  * 16-bit        (BIT_MODE=00, PACK=0)
369  * 20-bit        (BIT_MODE=01, PACK=0)
370  * 24-bit        (BIT_MODE=10, PACK=0)
371  * raw           (BIT_MODE=11, PACK=0)
372  * 16-bit packed (BIT_MODE=00, PACK=1)
373  *
374  * Bits 31:24 are common to all modes except 16-bit packed
375  */
376 
377 #define TEGRA20_SPDIF_DATA_IN_DATA_P				(1 << 31)
378 #define TEGRA20_SPDIF_DATA_IN_DATA_C				(1 << 30)
379 #define TEGRA20_SPDIF_DATA_IN_DATA_U				(1 << 29)
380 #define TEGRA20_SPDIF_DATA_IN_DATA_V				(1 << 28)
381 
382 #define TEGRA20_SPDIF_DATA_IN_DATA_PREAMBLE_SHIFT		24
383 #define TEGRA20_SPDIF_DATA_IN_DATA_PREAMBLE_MASK		(0xf << TEGRA20_SPDIF_DATA_IN_DATA_PREAMBLE_SHIFT)
384 
385 #define TEGRA20_SPDIF_DATA_IN_DATA_16_SHIFT			0
386 #define TEGRA20_SPDIF_DATA_IN_DATA_16_MASK			(0xffff << TEGRA20_SPDIF_DATA_IN_DATA_16_SHIFT)
387 
388 #define TEGRA20_SPDIF_DATA_IN_DATA_20_SHIFT			0
389 #define TEGRA20_SPDIF_DATA_IN_DATA_20_MASK			(0xfffff << TEGRA20_SPDIF_DATA_IN_DATA_20_SHIFT)
390 
391 #define TEGRA20_SPDIF_DATA_IN_DATA_24_SHIFT			0
392 #define TEGRA20_SPDIF_DATA_IN_DATA_24_MASK			(0xffffff << TEGRA20_SPDIF_DATA_IN_DATA_24_SHIFT)
393 
394 #define TEGRA20_SPDIF_DATA_IN_DATA_RAW_DATA_SHIFT		8
395 #define TEGRA20_SPDIF_DATA_IN_DATA_RAW_DATA_MASK		(0xfffff << TEGRA20_SPDIF_DATA_IN_DATA_RAW_DATA_SHIFT)
396 
397 #define TEGRA20_SPDIF_DATA_IN_DATA_RAW_AUX_SHIFT		4
398 #define TEGRA20_SPDIF_DATA_IN_DATA_RAW_AUX_MASK			(0xf << TEGRA20_SPDIF_DATA_IN_DATA_RAW_AUX_SHIFT)
399 
400 #define TEGRA20_SPDIF_DATA_IN_DATA_RAW_PREAMBLE_SHIFT		0
401 #define TEGRA20_SPDIF_DATA_IN_DATA_RAW_PREAMBLE_MASK		(0xf << TEGRA20_SPDIF_DATA_IN_DATA_RAW_PREAMBLE_SHIFT)
402 
403 #define TEGRA20_SPDIF_DATA_IN_DATA_16_PACKED_RIGHT_SHIFT	16
404 #define TEGRA20_SPDIF_DATA_IN_DATA_16_PACKED_RIGHT_MASK		(0xffff << TEGRA20_SPDIF_DATA_IN_DATA_16_PACKED_RIGHT_SHIFT)
405 
406 #define TEGRA20_SPDIF_DATA_IN_DATA_16_PACKED_LEFT_SHIFT		0
407 #define TEGRA20_SPDIF_DATA_IN_DATA_16_PACKED_LEFT_MASK		(0xffff << TEGRA20_SPDIF_DATA_IN_DATA_16_PACKED_LEFT_SHIFT)
408 
409 /* Fields in TEGRA20_SPDIF_CH_STA_RX_A */
410 /* Fields in TEGRA20_SPDIF_CH_STA_RX_B */
411 /* Fields in TEGRA20_SPDIF_CH_STA_RX_C */
412 /* Fields in TEGRA20_SPDIF_CH_STA_RX_D */
413 /* Fields in TEGRA20_SPDIF_CH_STA_RX_E */
414 /* Fields in TEGRA20_SPDIF_CH_STA_RX_F */
415 
416 /*
417  * The 6-word receive channel data page buffer holds a block (192 frames) of
418  * channel status information. The order of receive is from LSB to MSB
419  * bit, and from CH_STA_RX_A to CH_STA_RX_F then back to CH_STA_RX_A.
420  */
421 
422 /* Fields in TEGRA20_SPDIF_CH_STA_TX_A */
423 /* Fields in TEGRA20_SPDIF_CH_STA_TX_B */
424 /* Fields in TEGRA20_SPDIF_CH_STA_TX_C */
425 /* Fields in TEGRA20_SPDIF_CH_STA_TX_D */
426 /* Fields in TEGRA20_SPDIF_CH_STA_TX_E */
427 /* Fields in TEGRA20_SPDIF_CH_STA_TX_F */
428 
429 /*
430  * The 6-word transmit channel data page buffer holds a block (192 frames) of
431  * channel status information. The order of transmission is from LSB to MSB
432  * bit, and from CH_STA_TX_A to CH_STA_TX_F then back to CH_STA_TX_A.
433  */
434 
435 /* Fields in TEGRA20_SPDIF_USR_STA_RX_A */
436 
437 /*
438  * This 4-word deep FIFO receives user FIFO field information. The order of
439  * receive is from LSB to MSB bit.
440  */
441 
442 /* Fields in TEGRA20_SPDIF_USR_DAT_TX_A */
443 
444 /*
445  * This 4-word deep FIFO transmits user FIFO field information. The order of
446  * transmission is from LSB to MSB bit.
447  */
448 
449 struct tegra20_spdif {
450 	struct clk *clk_spdif_out;
451 	struct snd_dmaengine_dai_dma_data capture_dma_data;
452 	struct snd_dmaengine_dai_dma_data playback_dma_data;
453 	struct regmap *regmap;
454 	struct reset_control *reset;
455 };
456 
457 #endif
458