summaryrefslogtreecommitdiffstats
path: root/include/sound/hda_register.h
blob: 55958711d6974e87ed08155fef3b47da6d53ba7f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
/* SPDX-License-Identifier: GPL-2.0 */
/*
 * HD-audio controller (Azalia) registers and helpers
 *
 * For traditional reasons, we still use azx_ prefix here
 */

#ifndef __SOUND_HDA_REGISTER_H
#define __SOUND_HDA_REGISTER_H

#include <linux/io.h>
#include <sound/hdaudio.h>

#define AZX_REG_GCAP			0x00
#define   AZX_GCAP_64OK		(1 << 0)   /* 64bit address support */
#define   AZX_GCAP_NSDO		(3 << 1)   /* # of serial data out signals */
#define   AZX_GCAP_BSS		(31 << 3)  /* # of bidirectional streams */
#define   AZX_GCAP_ISS		(15 << 8)  /* # of input streams */
#define   AZX_GCAP_OSS		(15 << 12) /* # of output streams */
#define AZX_REG_VMIN			0x02
#define AZX_REG_VMAJ			0x03
#define AZX_REG_OUTPAY			0x04
#define AZX_REG_INPAY			0x06
#define AZX_REG_GCTL			0x08
#define   AZX_GCTL_RESET	(1 << 0)   /* controller reset */
#define   AZX_GCTL_FCNTRL	(1 << 1)   /* flush control */
#define   AZX_GCTL_UNSOL	(1 << 8)   /* accept unsol. response enable */
#define AZX_REG_WAKEEN			0x0c
#define AZX_REG_STATESTS		0x0e
#define AZX_REG_GSTS			0x10
#define   AZX_GSTS_FSTS		(1 << 1)   /* flush status */
#define AZX_REG_GCAP2			0x12
#define AZX_REG_LLCH			0x14
#define AZX_REG_OUTSTRMPAY		0x18
#define AZX_REG_INSTRMPAY		0x1A
#define AZX_REG_INTCTL			0x20
#define AZX_REG_INTSTS			0x24
#define AZX_REG_WALLCLK			0x30	/* 24Mhz source */
#define AZX_REG_OLD_SSYNC		0x34	/* SSYNC for old ICH */
#define AZX_REG_SSYNC			0x38
#define AZX_REG_CORBLBASE		0x40
#define AZX_REG_CORBUBASE		0x44
#define AZX_REG_CORBWP			0x48
#define AZX_REG_CORBRP			0x4a
#define   AZX_CORBRP_RST	(1 << 15)  /* read pointer reset */
#define AZX_REG_CORBCTL			0x4c
#define   AZX_CORBCTL_RUN	(1 << 1)   /* enable DMA */
#define   AZX_CORBCTL_CMEIE	(1 << 0)   /* enable memory error irq */
#define AZX_REG_CORBSTS			0x4d
#define   AZX_CORBSTS_CMEI	(1 << 0)   /* memory error indication */
#define AZX_REG_CORBSIZE		0x4e

#define AZX_REG_RIRBLBASE		0x50
#define AZX_REG_RIRBUBASE		0x54
#define AZX_REG_RIRBWP			0x58
#define   AZX_RIRBWP_RST	(1 << 15)  /* write pointer reset */
#define AZX_REG_RINTCNT			0x5a
#define AZX_REG_RIRBCTL			0x5c
#define   AZX_RBCTL_IRQ_EN	(1 << 0)   /* enable IRQ */
#define   AZX_RBCTL_DMA_EN	(1 << 1)   /* enable DMA */
#define   AZX_RBCTL_OVERRUN_EN	(1 << 2)   /* enable overrun irq */
#define AZX_REG_RIRBSTS			0x5d
#define   AZX_RBSTS_IRQ		(1 << 0)   /* response irq */
#define   AZX_RBSTS_OVERRUN	(1 << 2)   /* overrun irq */
#define AZX_REG_RIRBSIZE		0x5e

#define AZX_REG_IC			0x60
#define AZX_REG_IR			0x64
#define AZX_REG_IRS			0x68
#define   AZX_IRS_VALID		(1<<1)
#define   AZX_IRS_BUSY		(1<<0)

#define AZX_REG_DPLBASE			0x70
#define AZX_REG_DPUBASE			0x74
#define   AZX_DPLBASE_ENABLE	0x1	/* Enable position buffer */

/* SD offset: SDI0=0x80, SDI1=0xa0, ... SDO3=0x160 */
enum { SDI0, SDI1, SDI2, SDI3, SDO0, SDO1, SDO2, SDO3 };

/* stream register offsets from stream base */
#define AZX_REG_SD_CTL			0x00
#define AZX_REG_SD_CTL_3B		0x02 /* 3rd byte of SD_CTL register */
#define AZX_REG_SD_STS			0x03
#define AZX_REG_SD_LPIB			0x04
#define AZX_REG_SD_CBL			0x08
#define AZX_REG_SD_LVI			0x0c
#define AZX_REG_SD_FIFOW		0x0e
#define AZX_REG_SD_FIFOSIZE		0x10
#define AZX_REG_SD_FORMAT		0x12
#define AZX_REG_SD_FIFOL		0x14
#define AZX_REG_SD_BDLPL		0x18
#define AZX_REG_SD_BDLPU		0x1c

#define AZX_SD_FIFOSIZE_MASK		GENMASK(15, 0)

/* GTS registers */
#define AZX_REG_LLCH			0x14

#define AZX_REG_GTS_BASE		0x520

#define AZX_REG_GTSCC	(AZX_REG_GTS_BASE + 0x00)
#define AZX_REG_WALFCC	(AZX_REG_GTS_BASE + 0x04)
#define AZX_REG_TSCCL	(AZX_REG_GTS_BASE + 0x08)
#define AZX_REG_TSCCU	(AZX_REG_GTS_BASE + 0x0C)
#define AZX_REG_LLPFOC	(AZX_REG_GTS_BASE + 0x14)
#define AZX_REG_LLPCL	(AZX_REG_GTS_BASE + 0x18)
#define AZX_REG_LLPCU	(AZX_REG_GTS_BASE + 0x1C)

/* Haswell/Broadwell display HD-A controller Extended Mode registers */
#define AZX_REG_HSW_EM4			0x100c
#define AZX_REG_HSW_EM5			0x1010

/* Skylake/Broxton vendor-specific registers */
#define AZX_REG_VS_EM1			0x1000
#define AZX_REG_VS_INRC			0x1004
#define AZX_REG_VS_OUTRC		0x1008
#define AZX_REG_VS_FIFOTRK		0x100C
#define AZX_REG_VS_FIFOTRK2		0x1010
#define AZX_REG_VS_EM2			0x1030
#define AZX_REG_VS_EM3L			0x1038
#define AZX_REG_VS_EM3U			0x103C
#define AZX_REG_VS_EM4L			0x1040
#define AZX_REG_VS_EM4U			0x1044
#define AZX_REG_VS_LTRP			0x1048
#define AZX_REG_VS_D0I3C		0x104A
#define AZX_REG_VS_PCE			0x104B
#define AZX_REG_VS_L2MAGC		0x1050
#define AZX_REG_VS_L2LAHPT		0x1054
#define AZX_REG_VS_SDXDPIB_XBASE	0x1084
#define AZX_REG_VS_SDXDPIB_XINTERVAL	0x20
#define AZX_REG_VS_SDXEFIFOS_XBASE	0x1094
#define AZX_REG_VS_SDXEFIFOS_XINTERVAL	0x20

/* PCI space */
#define AZX_PCIREG_TCSEL		0x44

/*
 * other constants
 */

/* max number of fragments - we may use more if allocating more pages for BDL */
#define BDL_SIZE		4096
#define AZX_MAX_BDL_ENTRIES	(BDL_SIZE / 16)
#define AZX_MAX_FRAG		32
/*
 * max buffer size - artificial 4MB limit per stream to avoid big allocations
 * In theory it can be really big, but as it is per stream on systems with many streams memory could
 * be quickly saturated if userspace requests maximum buffer size for each of them.
 */
#define AZX_MAX_BUF_SIZE	(4*1024*1024)

/* RIRB int mask: overrun[2], response[0] */
#define RIRB_INT_RESPONSE	0x01
#define RIRB_INT_OVERRUN	0x04
#define RIRB_INT_MASK		0x05

/* STATESTS int mask: S3,SD2,SD1,SD0 */
#define STATESTS_INT_MASK	((1 << HDA_MAX_CODECS) - 1)

/* SD_CTL bits */
#define SD_CTL_STREAM_RESET	0x01	/* stream reset bit */
#define SD_CTL_DMA_START	0x02	/* stream DMA start bit */
#define SD_CTL_STRIPE		(3 << 16)	/* stripe control */
#define SD_CTL_TRAFFIC_PRIO	(1 << 18)	/* traffic priority */
#define SD_CTL_DIR		(1 << 19)	/* bi-directional stream */
#define SD_CTL_STREAM_TAG_MASK	(0xf << 20)
#define SD_CTL_STREAM_TAG_SHIFT	20

/* SD_CTL and SD_STS */
#define SD_INT_DESC_ERR		0x10	/* descriptor error interrupt */
#define SD_INT_FIFO_ERR		0x08	/* FIFO error interrupt */
#define SD_INT_COMPLETE		0x04	/* completion interrupt */
#define SD_INT_MASK		(SD_INT_DESC_ERR|SD_INT_FIFO_ERR|\
				 SD_INT_COMPLETE)
#define SD_CTL_STRIPE_MASK	0x3	/* stripe control mask */

/* SD_STS */
#define SD_STS_FIFO_READY	0x20	/* FIFO ready */

/* INTCTL and INTSTS */
#define AZX_INT_ALL_STREAM	0xff	   /* all stream interrupts */
#define AZX_INT_CTRL_EN	0x40000000 /* controller interrupt enable bit */
#define AZX_INT_GLOBAL_EN	0x80000000 /* global interrupt enable bit */

/* below are so far hardcoded - should read registers in future */
#define AZX_MAX_CORB_ENTRIES	256
#define AZX_MAX_RIRB_ENTRIES	256

/* Capability header  Structure */
#define AZX_REG_CAP_HDR			0x0
#define AZX_CAP_HDR_VER_OFF		28
#define AZX_CAP_HDR_VER_MASK		(0xF << AZX_CAP_HDR_VER_OFF)
#define AZX_CAP_HDR_ID_OFF		16
#define AZX_CAP_HDR_ID_MASK		(0xFFF << AZX_CAP_HDR_ID_OFF)
#define AZX_CAP_HDR_NXT_PTR_MASK	0xFFFF

/* registers of Software Position Based FIFO Capability Structure */
#define AZX_SPB_CAP_ID			0x4
#define AZX_REG_SPB_BASE_ADDR		0x700
#define AZX_REG_SPB_SPBFCH		0x00
#define AZX_REG_SPB_SPBFCCTL		0x04
/* Base used to calculate the iterating register offset */
#define AZX_SPB_BASE			0x08
/* Interval used to calculate the iterating register offset */
#define AZX_SPB_INTERVAL		0x08
/* SPIB base */
#define AZX_SPB_SPIB			0x00
/* SPIB MAXFIFO base*/
#define AZX_SPB_MAXFIFO			0x04

/* registers of Global Time Synchronization Capability Structure */
#define AZX_GTS_CAP_ID			0x1
#define AZX_REG_GTS_GTSCH		0x00
#define AZX_REG_GTS_GTSCD		0x04
#define AZX_REG_GTS_GTSCTLAC		0x0C
#define AZX_GTS_BASE			0x20
#define AZX_GTS_INTERVAL		0x20

/* registers for Processing Pipe Capability Structure */
#define AZX_PP_CAP_ID			0x3
#define AZX_REG_PP_PPCH			0x10
#define AZX_REG_PP_PPCTL		0x04
#define AZX_PPCTL_PIE			(1<<31)
#define AZX_PPCTL_GPROCEN		(1<<30)
/* _X_ = dma engine # and cannot * exceed 29 (per spec max 30 dma engines) */
#define AZX_PPCTL_PROCEN(_X_)		(1<<(_X_))

#define AZX_REG_PP_PPSTS		0x08

#define AZX_PPHC_BASE			0x10
#define AZX_PPHC_INTERVAL		0x10

#define AZX_REG_PPHCLLPL		0x0
#define AZX_REG_PPHCLLPU		0x4
#define AZX_REG_PPHCLDPL		0x8
#define AZX_REG_PPHCLDPU		0xC

#define AZX_PPLC_BASE			0x10
#define AZX_PPLC_MULTI			0x10
#define AZX_PPLC_INTERVAL		0x10

#define AZX_REG_PPLCCTL			0x0
#define AZX_PPLCCTL_STRM_BITS		4
#define AZX_PPLCCTL_STRM_SHIFT		20
#define AZX_REG_MASK(bit_num, offset) \
	(((1 << (bit_num)) - 1) << (offset))
#define AZX_PPLCCTL_STRM_MASK \
	AZX_REG_MASK(AZX_PPLCCTL_STRM_BITS, AZX_PPLCCTL_STRM_SHIFT)
#define AZX_PPLCCTL_RUN			(1<<1)
#define AZX_PPLCCTL_STRST		(1<<0)

#define AZX_REG_PPLCFMT			0x4
#define AZX_REG_PPLCLLPL		0x8
#define AZX_REG_PPLCLLPU		0xC

/* registers for Multiple Links Capability Structure */
#define AZX_ML_CAP_ID			0x2
#define AZX_REG_ML_MLCH			0x00
#define AZX_REG_ML_MLCD			0x04
#define AZX_ML_BASE			0x40
#define AZX_ML_INTERVAL			0x40

/* HDaudio registers valid for HDaudio and HDaudio extended links */
#define AZX_REG_ML_LCAP			0x00

#define AZX_ML_HDA_LCAP_ALT		BIT(28)
#define AZX_ML_HDA_LCAP_ALT_HDA		0x0
#define AZX_ML_HDA_LCAP_ALT_HDA_EXT	0x1

#define AZX_ML_HDA_LCAP_INTC		BIT(27)		/* only used if ALT == 1 */
#define AZX_ML_HDA_LCAP_OFLS		BIT(26)		/* only used if ALT == 1 */
#define AZX_ML_HDA_LCAP_LSS		BIT(23)		/* only used if ALT == 1 */
#define AZX_ML_HDA_LCAP_SLCOUNT		GENMASK(22, 20)	/* only used if ALT == 1 */

#define AZX_REG_ML_LCTL			0x04
#define AZX_ML_LCTL_INTSTS		BIT(31)		/* only used if ALT == 1 */
#define AZX_ML_LCTL_CPA			BIT(23)
#define AZX_ML_LCTL_CPA_SHIFT		23
#define AZX_ML_LCTL_SPA			BIT(16)
#define AZX_ML_LCTL_SPA_SHIFT		16
#define AZX_ML_LCTL_INTEN		BIT(5)		/* only used if ALT == 1 */
#define AZX_ML_LCTL_OFLEN		BIT(4)		/* only used if ALT == 1 */
#define AZX_ML_LCTL_SCF			GENMASK(3, 0)	/* only used if ALT == 0 */

#define AZX_REG_ML_LOSIDV		0x08

/* bit0 is reserved, with BIT(1) mapping to stream1 */
#define AZX_ML_LOSIDV_STREAM_MASK	0xFFFE

#define AZX_REG_ML_LSDIID		0x0C
#define AZX_REG_ML_LSDIID_OFFSET(x)	(0x0C + (x) * 0x02)	/* only used if ALT == 1 */

/* HDaudio registers only valid if LCAP.ALT == 0 */
#define AZX_REG_ML_LPSOO		0x10
#define AZX_REG_ML_LPSIO		0x12
#define AZX_REG_ML_LWALFC		0x18
#define AZX_REG_ML_LOUTPAY		0x20
#define AZX_REG_ML_LINPAY		0x30

/* HDaudio Extended link registers only valid if LCAP.ALT == 1 */
#define AZX_REG_ML_LSYNC		0x1C

#define AZX_REG_ML_LSYNC_CMDSYNC	BIT(24)
#define AZX_REG_ML_LSYNC_CMDSYNC_SHIFT	24
#define AZX_REG_ML_LSYNC_SYNCGO		BIT(23)
#define AZX_REG_ML_LSYNC_SYNCPU		BIT(20)
#define AZX_REG_ML_LSYNC_SYNCPRD	GENMASK(19, 0)

#define AZX_REG_ML_LEPTR		0x20

#define AZX_REG_ML_LEPTR_ID		GENMASK(31, 24)
#define AZX_REG_ML_LEPTR_ID_SHIFT	24
#define AZX_REG_ML_LEPTR_ID_SDW		0x00
#define AZX_REG_ML_LEPTR_ID_INTEL_SSP	0xC0
#define AZX_REG_ML_LEPTR_ID_INTEL_DMIC  0xC1
#define AZX_REG_ML_LEPTR_ID_INTEL_UAOL  0xC2
#define AZX_REG_ML_LEPTR_VER		GENMASK(23, 20)
#define AZX_REG_ML_LEPTR_PTR		GENMASK(19, 0)

/* registers for DMA Resume Capability Structure */
#define AZX_DRSM_CAP_ID			0x5
#define AZX_REG_DRSM_CTL		0x4
/* Base used to calculate the iterating register offset */
#define AZX_DRSM_BASE			0x08
/* Interval used to calculate the iterating register offset */
#define AZX_DRSM_INTERVAL		0x08

/* Global time synchronization registers */
#define GTSCC_TSCCD_MASK		0x80000000
#define GTSCC_TSCCD_SHIFT		BIT(31)
#define GTSCC_TSCCI_MASK		0x20
#define GTSCC_CDMAS_DMA_DIR_SHIFT	4

#define WALFCC_CIF_MASK			0x1FF
#define WALFCC_FN_SHIFT			9
#define HDA_CLK_CYCLES_PER_FRAME	512

/*
 * An error occurs near frame "rollover". The clocks in frame value indicates
 * whether this error may have occurred. Here we use the value of 10. Please
 * see the errata for the right number [<10]
 */
#define HDA_MAX_CYCLE_VALUE		499
#define HDA_MAX_CYCLE_OFFSET		10
#define HDA_MAX_CYCLE_READ_RETRY	10

#define TSCCU_CCU_SHIFT			32
#define LLPC_CCU_SHIFT			32


/*
 * helpers to read the stream position
 */
static inline unsigned int
snd_hdac_stream_get_pos_lpib(struct hdac_stream *stream)
{
	return snd_hdac_stream_readl(stream, SD_LPIB);
}

static inline unsigned int
snd_hdac_stream_get_pos_posbuf(struct hdac_stream *stream)
{
	return le32_to_cpu(*stream->posbuf);
}

#endif /* __SOUND_HDA_REGISTER_H */