[ALSA] Optimize for config without PROC_FS (pci drivers)
[linux-2.6.git] / sound / pci / emu10k1 / p16v.h
1 /*
2  *  Copyright (c) by James Courtier-Dutton <James@superbug.demon.co.uk>
3  *  Driver p16v chips
4  *  Version: 0.21
5  *
6  *  FEATURES currently supported:
7  *    Output fixed at S32_LE, 2 channel to hw:0,0
8  *    Rates: 44.1, 48, 96, 192.
9  *
10  *  Changelog:
11  *  0.8
12  *    Use separate card based buffer for periods table.
13  *  0.9
14  *    Use 2 channel output streams instead of 8 channel.
15  *       (8 channel output streams might be good for ASIO type output)
16  *    Corrected speaker output, so Front -> Front etc.
17  *  0.10
18  *    Fixed missed interrupts.
19  *  0.11
20  *    Add Sound card model number and names.
21  *    Add Analog volume controls.
22  *  0.12
23  *    Corrected playback interrupts. Now interrupt per period, instead of half period.
24  *  0.13
25  *    Use single trigger for multichannel.
26  *  0.14
27  *    Mic capture now works at fixed: S32_LE, 96000Hz, Stereo.
28  *  0.15
29  *    Force buffer_size / period_size == INTEGER.
30  *  0.16
31  *    Update p16v.c to work with changed alsa api.
32  *  0.17
33  *    Update p16v.c to work with changed alsa api. Removed boot_devs.
34  *  0.18
35  *    Merging with snd-emu10k1 driver.
36  *  0.19
37  *    One stereo channel at 24bit now works.
38  *  0.20
39  *    Added better register defines.
40  *  0.21
41  *    Split from p16v.c
42  *
43  *
44  *  BUGS:
45  *    Some stability problems when unloading the snd-p16v kernel module.
46  *    --
47  *
48  *  TODO:
49  *    SPDIF out.
50  *    Find out how to change capture sample rates. E.g. To record SPDIF at 48000Hz.
51  *    Currently capture fixed at 48000Hz.
52  *
53  *    --
54  *  GENERAL INFO:
55  *    Model: SB0240
56  *    P16V Chip: CA0151-DBS
57  *    Audigy 2 Chip: CA0102-IAT
58  *    AC97 Codec: STAC 9721
59  *    ADC: Philips 1361T (Stereo 24bit)
60  *    DAC: CS4382-K (8-channel, 24bit, 192Khz)
61  *
62  *  This code was initally based on code from ALSA's emu10k1x.c which is:
63  *  Copyright (c) by Francisco Moraes <fmoraes@nc.rr.com>
64  *
65  *   This program is free software; you can redistribute it and/or modify
66  *   it under the terms of the GNU General Public License as published by
67  *   the Free Software Foundation; either version 2 of the License, or
68  *   (at your option) any later version.
69  *
70  *   This program is distributed in the hope that it will be useful,
71  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
72  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
73  *   GNU General Public License for more details.
74  *
75  *   You should have received a copy of the GNU General Public License
76  *   along with this program; if not, write to the Free Software
77  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
78  *
79  */
80
81 /********************************************************************************************************/
82 /* Audigy2 P16V pointer-offset register set, accessed through the PTR2 and DATA2 registers                     */
83 /********************************************************************************************************/
84                                                                                                                            
85 /* The sample rate of the SPDIF outputs is set by modifying a register in the EMU10K2 PTR register A_SPDIF_SAMPLERATE.
86  * The sample rate is also controlled by the same registers that control the rate of the EMU10K2 sample rate converters.
87  */
88
89 /* Initally all registers from 0x00 to 0x3f have zero contents. */
90 #define PLAYBACK_LIST_ADDR      0x00            /* Base DMA address of a list of pointers to each period/size */
91                                                 /* One list entry: 4 bytes for DMA address, 
92                                                  * 4 bytes for period_size << 16.
93                                                  * One list entry is 8 bytes long.
94                                                  * One list entry for each period in the buffer.
95                                                  */
96 #define PLAYBACK_LIST_SIZE      0x01            /* Size of list in bytes << 16. E.g. 8 periods -> 0x00380000  */
97 #define PLAYBACK_LIST_PTR       0x02            /* Pointer to the current period being played */
98 #define PLAYBACK_UNKNOWN3       0x03            /* Not used */
99 #define PLAYBACK_DMA_ADDR       0x04            /* Playback DMA addresss */
100 #define PLAYBACK_PERIOD_SIZE    0x05            /* Playback period size. win2000 uses 0x04000000 */
101 #define PLAYBACK_POINTER        0x06            /* Playback period pointer. Used with PLAYBACK_LIST_PTR to determine buffer position currently in DAC */
102 #define PLAYBACK_FIFO_END_ADDRESS       0x07            /* Playback FIFO end address */
103 #define PLAYBACK_FIFO_POINTER   0x08            /* Playback FIFO pointer and number of valid sound samples in cache */
104 #define PLAYBACK_UNKNOWN9       0x09            /* Not used */
105 #define CAPTURE_DMA_ADDR        0x10            /* Capture DMA address */
106 #define CAPTURE_BUFFER_SIZE     0x11            /* Capture buffer size */
107 #define CAPTURE_POINTER         0x12            /* Capture buffer pointer. Sample currently in ADC */
108 #define CAPTURE_FIFO_POINTER    0x13            /* Capture FIFO pointer and number of valid sound samples in cache */
109 #define CAPTURE_P16V_VOLUME1    0x14            /* Low: Capture volume 0xXXXX3030 */
110 #define CAPTURE_P16V_VOLUME2    0x15            /* High:Has no effect on capture volume */
111 #define CAPTURE_P16V_SOURCE     0x16            /* P16V source select. Set to 0x0700E4E5 for AC97 CAPTURE */
112                                                 /* [0:1] Capture input 0 channel select. 0 = Capture output 0.
113                                                  *                                       1 = Capture output 1.
114                                                  *                                       2 = Capture output 2.
115                                                  *                                       3 = Capture output 3.
116                                                  * [3:2] Capture input 1 channel select. 0 = Capture output 0.
117                                                  *                                       1 = Capture output 1.
118                                                  *                                       2 = Capture output 2.
119                                                  *                                       3 = Capture output 3.
120                                                  * [5:4] Capture input 2 channel select. 0 = Capture output 0.
121                                                  *                                       1 = Capture output 1.
122                                                  *                                       2 = Capture output 2.
123                                                  *                                       3 = Capture output 3.
124                                                  * [7:6] Capture input 3 channel select. 0 = Capture output 0.
125                                                  *                                       1 = Capture output 1.
126                                                  *                                       2 = Capture output 2.
127                                                  *                                       3 = Capture output 3.
128                                                  * [9:8] Playback input 0 channel select. 0 = Play output 0.
129                                                  *                                        1 = Play output 1.
130                                                  *                                        2 = Play output 2.
131                                                  *                                        3 = Play output 3.
132                                                  * [11:10] Playback input 1 channel select. 0 = Play output 0.
133                                                  *                                          1 = Play output 1.
134                                                  *                                          2 = Play output 2.
135                                                  *                                          3 = Play output 3.
136                                                  * [13:12] Playback input 2 channel select. 0 = Play output 0.
137                                                  *                                          1 = Play output 1.
138                                                  *                                          2 = Play output 2.
139                                                  *                                          3 = Play output 3.
140                                                  * [15:14] Playback input 3 channel select. 0 = Play output 0.
141                                                  *                                          1 = Play output 1.
142                                                  *                                          2 = Play output 2.
143                                                  *                                          3 = Play output 3.
144                                                  * [19:16] Playback mixer output enable. 1 bit per channel.
145                                                  * [23:20] Capture mixer output enable. 1 bit per channel.
146                                                  * [26:24] FX engine channel capture 0 = 0x60-0x67.
147                                                  *                                   1 = 0x68-0x6f.
148                                                  *                                   2 = 0x70-0x77.
149                                                  *                                   3 = 0x78-0x7f.
150                                                  *                                   4 = 0x80-0x87.
151                                                  *                                   5 = 0x88-0x8f.
152                                                  *                                   6 = 0x90-0x97.
153                                                  *                                   7 = 0x98-0x9f.
154                                                  * [31:27] Not used.
155                                                  */
156
157                                                 /* 0x1 = capture on.
158                                                  * 0x100 = capture off.
159                                                  * 0x200 = capture off.
160                                                  * 0x1000 = capture off.
161                                                  */
162 #define CAPTURE_RATE_STATUS             0x17            /* Capture sample rate. Read only */
163                                                 /* [15:0] Not used.
164                                                  * [18:16] Channel 0 Detected sample rate. 0 - 44.1khz
165                                                  *                               1 - 48 khz
166                                                  *                               2 - 96 khz
167                                                  *                               3 - 192 khz
168                                                  *                               7 - undefined rate.
169                                                  * [19] Channel 0. 1 - Valid, 0 - Not Valid.
170                                                  * [22:20] Channel 1 Detected sample rate. 
171                                                  * [23] Channel 1. 1 - Valid, 0 - Not Valid.
172                                                  * [26:24] Channel 2 Detected sample rate. 
173                                                  * [27] Channel 2. 1 - Valid, 0 - Not Valid.
174                                                  * [30:28] Channel 3 Detected sample rate. 
175                                                  * [31] Channel 3. 1 - Valid, 0 - Not Valid.
176                                                  */
177 /* 0x18 - 0x1f unused */
178 #define PLAYBACK_LAST_SAMPLE    0x20            /* The sample currently being played. Read only */
179 /* 0x21 - 0x3f unused */
180 #define BASIC_INTERRUPT         0x40            /* Used by both playback and capture interrupt handler */
181                                                 /* Playback (0x1<<channel_id) Don't touch high 16bits. */
182                                                 /* Capture  (0x100<<channel_id). not tested */
183                                                 /* Start Playback [3:0] (one bit per channel)
184                                                  * Start Capture [11:8] (one bit per channel)
185                                                  * Record source select for channel 0 [18:16]
186                                                  * Record source select for channel 1 [22:20]
187                                                  * Record source select for channel 2 [26:24]
188                                                  * Record source select for channel 3 [30:28]
189                                                  * 0 - SPDIF channel.
190                                                  * 1 - I2S channel.
191                                                  * 2 - SRC48 channel.
192                                                  * 3 - SRCMulti_SPDIF channel.
193                                                  * 4 - SRCMulti_I2S channel.
194                                                  * 5 - SPDIF channel.
195                                                  * 6 - fxengine capture.
196                                                  * 7 - AC97 capture.
197                                                  */
198                                                 /* Default 41110000.
199                                                  * Writing 0xffffffff hangs the PC.
200                                                  * Writing 0xffff0000 -> 77770000 so it must be some sort of route.
201                                                  * bit 0x1 starts DMA playback on channel_id 0
202                                                  */
203 /* 0x41,42 take values from 0 - 0xffffffff, but have no effect on playback */
204 /* 0x43,0x48 do not remember settings */
205 /* 0x41-45 unused */
206 #define WATERMARK            0x46               /* Test bit to indicate cache level usage */
207                                                 /* Values it can have while playing on channel 0. 
208                                                  * 0000f000, 0000f004, 0000f008, 0000f00c.
209                                                  * Readonly.
210                                                  */
211 /* 0x47-0x4f unused */
212 /* 0x50-0x5f Capture cache data */
213 #define SRCSel                  0x60            /* SRCSel. Default 0x4. Bypass P16V 0x14 */
214                                                 /* [0] 0 = 10K2 audio, 1 = SRC48 mixer output.
215                                                  * [2] 0 = 10K2 audio, 1 = SRCMulti SPDIF mixer output.
216                                                  * [4] 0 = 10K2 audio, 1 = SRCMulti I2S mixer output.
217                                                  */
218                                                 /* SRC48 converts samples rates 44.1, 48, 96, 192 to 48 khz. */
219                                                 /* SRCMulti converts 48khz samples rates to 44.1, 48, 96, 192 to 48. */
220                                                 /* SRC48 and SRCMULTI sample rate select and output select. */
221                                                 /* 0xffffffff -> 0xC0000015
222                                                  * 0xXXXXXXX4 = Enable Front Left/Right
223                                                  * Enable PCMs
224                                                  */
225
226 /* 0x61 -> 0x6c are Volume controls */
227 #define PLAYBACK_VOLUME_MIXER1  0x61            /* SRC48 Low to mixer input volume control. */
228 #define PLAYBACK_VOLUME_MIXER2  0x62            /* SRC48 High to mixer input volume control. */
229 #define PLAYBACK_VOLUME_MIXER3  0x63            /* SRCMULTI SPDIF Low to mixer input volume control. */
230 #define PLAYBACK_VOLUME_MIXER4  0x64            /* SRCMULTI SPDIF High to mixer input volume control. */
231 #define PLAYBACK_VOLUME_MIXER5  0x65            /* SRCMULTI I2S Low to mixer input volume control. */
232 #define PLAYBACK_VOLUME_MIXER6  0x66            /* SRCMULTI I2S High to mixer input volume control. */
233 #define PLAYBACK_VOLUME_MIXER7  0x67            /* P16V Low to SRCMULTI SPDIF mixer input volume control. */
234 #define PLAYBACK_VOLUME_MIXER8  0x68            /* P16V High to SRCMULTI SPDIF mixer input volume control. */
235 #define PLAYBACK_VOLUME_MIXER9  0x69            /* P16V Low to SRCMULTI I2S mixer input volume control. */
236                                                 /* 0xXXXX3030 = PCM0 Volume (Front).
237                                                  * 0x3030XXXX = PCM1 Volume (Center)
238                                                  */
239 #define PLAYBACK_VOLUME_MIXER10  0x6a           /* P16V High to SRCMULTI I2S mixer input volume control. */
240                                                 /* 0x3030XXXX = PCM3 Volume (Rear). */
241 #define PLAYBACK_VOLUME_MIXER11  0x6b           /* E10K2 Low to SRC48 mixer input volume control. */
242 #define PLAYBACK_VOLUME_MIXER12 0x6c            /* E10K2 High to SRC48 mixer input volume control. */
243
244 #define SRC48_ENABLE            0x6d            /* SRC48 input audio enable */
245                                                 /* SRC48 converts samples rates 44.1, 48, 96, 192 to 48 khz. */
246                                                 /* [23:16] The corresponding P16V channel to SRC48 enabled if == 1.
247                                                  * [31:24] The corresponding E10K2 channel to SRC48 enabled.
248                                                  */
249 #define SRCMULTI_ENABLE         0x6e            /* SRCMulti input audio enable. Default 0xffffffff */
250                                                 /* SRCMulti converts 48khz samples rates to 44.1, 48, 96, 192 to 48. */
251                                                 /* [7:0] The corresponding P16V channel to SRCMulti_I2S enabled if == 1.
252                                                  * [15:8] The corresponding E10K2 channel to SRCMulti I2S enabled.
253                                                  * [23:16] The corresponding P16V channel to SRCMulti SPDIF enabled.
254                                                  * [31:24] The corresponding E10K2 channel to SRCMulti SPDIF enabled.
255                                                  */
256                                                 /* Bypass P16V 0xff00ff00 
257                                                  * Bitmap. 0 = Off, 1 = On.
258                                                  * P16V playback outputs:
259                                                  * 0xXXXXXXX1 = PCM0 Left. (Front)
260                                                  * 0xXXXXXXX2 = PCM0 Right.
261                                                  * 0xXXXXXXX4 = PCM1 Left. (Center/LFE)
262                                                  * 0xXXXXXXX8 = PCM1 Right.
263                                                  * 0xXXXXXX1X = PCM2 Left. (Unknown)
264                                                  * 0xXXXXXX2X = PCM2 Right.
265                                                  * 0xXXXXXX4X = PCM3 Left. (Rear)
266                                                  * 0xXXXXXX8X = PCM3 Right.
267                                                  */
268 #define AUDIO_OUT_ENABLE        0x6f            /* Default: 000100FF */
269                                                 /* [3:0] Does something, but not documented. Probably capture enable.
270                                                  * [7:4] Playback channels enable. not documented.
271                                                  * [16] AC97 output enable if == 1
272                                                  * [30] 0 = SRCMulti_I2S input from fxengine 0x68-0x6f.
273                                                  *      1 = SRCMulti_I2S input from SRC48 output.
274                                                  * [31] 0 = SRCMulti_SPDIF input from fxengine 0x60-0x67.
275                                                  *      1 = SRCMulti_SPDIF input from SRC48 output.
276                                                  */
277                                                 /* 0xffffffff -> C00100FF */
278                                                 /* 0 -> Not playback sound, irq still running */
279                                                 /* 0xXXXXXX10 = PCM0 Left/Right On. (Front)
280                                                  * 0xXXXXXX20 = PCM1 Left/Right On. (Center/LFE)
281                                                  * 0xXXXXXX40 = PCM2 Left/Right On. (Unknown)
282                                                  * 0xXXXXXX80 = PCM3 Left/Right On. (Rear)
283                                                  */
284 #define PLAYBACK_SPDIF_SELECT     0x70          /* Default: 12030F00 */
285                                                 /* 0xffffffff -> 3FF30FFF */
286                                                 /* 0x00000001 pauses stream/irq fail. */
287                                                 /* All other bits do not effect playback */
288 #define PLAYBACK_SPDIF_SRC_SELECT 0x71          /* Default: 0000E4E4 */
289                                                 /* 0xffffffff -> F33FFFFF */
290                                                 /* All bits do not effect playback */
291 #define PLAYBACK_SPDIF_USER_DATA0 0x72          /* SPDIF out user data 0 */
292 #define PLAYBACK_SPDIF_USER_DATA1 0x73          /* SPDIF out user data 1 */
293 /* 0x74-0x75 unknown */
294 #define CAPTURE_SPDIF_CONTROL   0x76            /* SPDIF in control setting */
295 #define CAPTURE_SPDIF_STATUS    0x77            /* SPDIF in status */
296 #define CAPURE_SPDIF_USER_DATA0 0x78            /* SPDIF in user data 0 */
297 #define CAPURE_SPDIF_USER_DATA1 0x79            /* SPDIF in user data 1 */
298 #define CAPURE_SPDIF_USER_DATA2 0x7a            /* SPDIF in user data 2 */
299