2 * Copyright (c) by James Courtier-Dutton <James@superbug.demon.co.uk>
6 * FEATURES currently supported:
7 * Output fixed at S32_LE, 2 channel to hw:0,0
8 * Rates: 44.1, 48, 96, 192.
12 * Use separate card based buffer for periods table.
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.
18 * Fixed missed interrupts.
20 * Add Sound card model number and names.
21 * Add Analog volume controls.
23 * Corrected playback interrupts. Now interrupt per period, instead of half period.
25 * Use single trigger for multichannel.
27 * Mic capture now works at fixed: S32_LE, 96000Hz, Stereo.
29 * Force buffer_size / period_size == INTEGER.
31 * Update p16v.c to work with changed alsa api.
33 * Update p16v.c to work with changed alsa api. Removed boot_devs.
35 * Merging with snd-emu10k1 driver.
37 * One stereo channel at 24bit now works.
39 * Added better register defines.
45 * Some stability problems when unloading the snd-p16v kernel module.
50 * Find out how to change capture sample rates. E.g. To record SPDIF at 48000Hz.
51 * Currently capture fixed at 48000Hz.
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)
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>
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.
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.
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
83 /********************************************************************************************************/
84 /* Audigy2 P16V pointer-offset register set, accessed through the PTR2 and DATA2 registers */
85 /********************************************************************************************************/
87 /* The sample rate of the SPDIF outputs is set by modifying a register in the EMU10K2 PTR register A_SPDIF_SAMPLERATE.
88 * The sample rate is also controlled by the same registers that control the rate of the EMU10K2 sample rate converters.
91 /* Initally all registers from 0x00 to 0x3f have zero contents. */
92 #define PLAYBACK_LIST_ADDR 0x00 /* Base DMA address of a list of pointers to each period/size */
93 /* One list entry: 4 bytes for DMA address,
94 * 4 bytes for period_size << 16.
95 * One list entry is 8 bytes long.
96 * One list entry for each period in the buffer.
98 #define PLAYBACK_LIST_SIZE 0x01 /* Size of list in bytes << 16. E.g. 8 periods -> 0x00380000 */
99 #define PLAYBACK_LIST_PTR 0x02 /* Pointer to the current period being played */
100 #define PLAYBACK_UNKNOWN3 0x03 /* Not used */
101 #define PLAYBACK_DMA_ADDR 0x04 /* Playback DMA addresss */
102 #define PLAYBACK_PERIOD_SIZE 0x05 /* Playback period size. win2000 uses 0x04000000 */
103 #define PLAYBACK_POINTER 0x06 /* Playback period pointer. Used with PLAYBACK_LIST_PTR to determine buffer position currently in DAC */
104 #define PLAYBACK_FIFO_END_ADDRESS 0x07 /* Playback FIFO end address */
105 #define PLAYBACK_FIFO_POINTER 0x08 /* Playback FIFO pointer and number of valid sound samples in cache */
106 #define PLAYBACK_UNKNOWN9 0x09 /* Not used */
107 #define CAPTURE_DMA_ADDR 0x10 /* Capture DMA address */
108 #define CAPTURE_BUFFER_SIZE 0x11 /* Capture buffer size */
109 #define CAPTURE_POINTER 0x12 /* Capture buffer pointer. Sample currently in ADC */
110 #define CAPTURE_FIFO_POINTER 0x13 /* Capture FIFO pointer and number of valid sound samples in cache */
111 #define CAPTURE_P16V_VOLUME1 0x14 /* Low: Capture volume 0xXXXX3030 */
112 #define CAPTURE_P16V_VOLUME2 0x15 /* High:Has no effect on capture volume */
113 #define CAPTURE_P16V_SOURCE 0x16 /* P16V source select. Set to 0x0700E4E5 for AC97 CAPTURE */
114 /* [0:1] Capture input 0 channel select. 0 = Capture output 0.
115 * 1 = Capture output 1.
116 * 2 = Capture output 2.
117 * 3 = Capture output 3.
118 * [3:2] Capture input 1 channel select. 0 = Capture output 0.
119 * 1 = Capture output 1.
120 * 2 = Capture output 2.
121 * 3 = Capture output 3.
122 * [5:4] Capture input 2 channel select. 0 = Capture output 0.
123 * 1 = Capture output 1.
124 * 2 = Capture output 2.
125 * 3 = Capture output 3.
126 * [7:6] Capture input 3 channel select. 0 = Capture output 0.
127 * 1 = Capture output 1.
128 * 2 = Capture output 2.
129 * 3 = Capture output 3.
130 * [9:8] Playback input 0 channel select. 0 = Play output 0.
134 * [11:10] Playback input 1 channel select. 0 = Play output 0.
138 * [13:12] Playback input 2 channel select. 0 = Play output 0.
142 * [15:14] Playback input 3 channel select. 0 = Play output 0.
146 * [19:16] Playback mixer output enable. 1 bit per channel.
147 * [23:20] Capture mixer output enable. 1 bit per channel.
148 * [26:24] FX engine channel capture 0 = 0x60-0x67.
160 * 0x100 = capture off.
161 * 0x200 = capture off.
162 * 0x1000 = capture off.
164 #define CAPTURE_RATE_STATUS 0x17 /* Capture sample rate. Read only */
166 * [18:16] Channel 0 Detected sample rate. 0 - 44.1khz
170 * 7 - undefined rate.
171 * [19] Channel 0. 1 - Valid, 0 - Not Valid.
172 * [22:20] Channel 1 Detected sample rate.
173 * [23] Channel 1. 1 - Valid, 0 - Not Valid.
174 * [26:24] Channel 2 Detected sample rate.
175 * [27] Channel 2. 1 - Valid, 0 - Not Valid.
176 * [30:28] Channel 3 Detected sample rate.
177 * [31] Channel 3. 1 - Valid, 0 - Not Valid.
179 /* 0x18 - 0x1f unused */
180 #define PLAYBACK_LAST_SAMPLE 0x20 /* The sample currently being played. Read only */
181 /* 0x21 - 0x3f unused */
182 #define BASIC_INTERRUPT 0x40 /* Used by both playback and capture interrupt handler */
183 /* Playback (0x1<<channel_id) Don't touch high 16bits. */
184 /* Capture (0x100<<channel_id). not tested */
185 /* Start Playback [3:0] (one bit per channel)
186 * Start Capture [11:8] (one bit per channel)
187 * Record source select for channel 0 [18:16]
188 * Record source select for channel 1 [22:20]
189 * Record source select for channel 2 [26:24]
190 * Record source select for channel 3 [30:28]
194 * 3 - SRCMulti_SPDIF channel.
195 * 4 - SRCMulti_I2S channel.
197 * 6 - fxengine capture.
201 * Writing 0xffffffff hangs the PC.
202 * Writing 0xffff0000 -> 77770000 so it must be some sort of route.
203 * bit 0x1 starts DMA playback on channel_id 0
205 /* 0x41,42 take values from 0 - 0xffffffff, but have no effect on playback */
206 /* 0x43,0x48 do not remember settings */
208 #define WATERMARK 0x46 /* Test bit to indicate cache level usage */
209 /* Values it can have while playing on channel 0.
210 * 0000f000, 0000f004, 0000f008, 0000f00c.
213 /* 0x47-0x4f unused */
214 /* 0x50-0x5f Capture cache data */
215 #define SRCSel 0x60 /* SRCSel. Default 0x4. Bypass P16V 0x14 */
216 /* [0] 0 = 10K2 audio, 1 = SRC48 mixer output.
217 * [2] 0 = 10K2 audio, 1 = SRCMulti SPDIF mixer output.
218 * [4] 0 = 10K2 audio, 1 = SRCMulti I2S mixer output.
220 /* SRC48 converts samples rates 44.1, 48, 96, 192 to 48 khz. */
221 /* SRCMulti converts 48khz samples rates to 44.1, 48, 96, 192 to 48. */
222 /* SRC48 and SRCMULTI sample rate select and output select. */
223 /* 0xffffffff -> 0xC0000015
224 * 0xXXXXXXX4 = Enable Front Left/Right
228 /* 0x61 -> 0x6c are Volume controls */
229 #define PLAYBACK_VOLUME_MIXER1 0x61 /* SRC48 Low to mixer input volume control. */
230 #define PLAYBACK_VOLUME_MIXER2 0x62 /* SRC48 High to mixer input volume control. */
231 #define PLAYBACK_VOLUME_MIXER3 0x63 /* SRCMULTI SPDIF Low to mixer input volume control. */
232 #define PLAYBACK_VOLUME_MIXER4 0x64 /* SRCMULTI SPDIF High to mixer input volume control. */
233 #define PLAYBACK_VOLUME_MIXER5 0x65 /* SRCMULTI I2S Low to mixer input volume control. */
234 #define PLAYBACK_VOLUME_MIXER6 0x66 /* SRCMULTI I2S High to mixer input volume control. */
235 #define PLAYBACK_VOLUME_MIXER7 0x67 /* P16V Low to SRCMULTI SPDIF mixer input volume control. */
236 #define PLAYBACK_VOLUME_MIXER8 0x68 /* P16V High to SRCMULTI SPDIF mixer input volume control. */
237 #define PLAYBACK_VOLUME_MIXER9 0x69 /* P16V Low to SRCMULTI I2S mixer input volume control. */
238 /* 0xXXXX3030 = PCM0 Volume (Front).
239 * 0x3030XXXX = PCM1 Volume (Center)
241 #define PLAYBACK_VOLUME_MIXER10 0x6a /* P16V High to SRCMULTI I2S mixer input volume control. */
242 /* 0x3030XXXX = PCM3 Volume (Rear). */
243 #define PLAYBACK_VOLUME_MIXER11 0x6b /* E10K2 Low to SRC48 mixer input volume control. */
244 #define PLAYBACK_VOLUME_MIXER12 0x6c /* E10K2 High to SRC48 mixer input volume control. */
246 #define SRC48_ENABLE 0x6d /* SRC48 input audio enable */
247 /* SRC48 converts samples rates 44.1, 48, 96, 192 to 48 khz. */
248 /* [23:16] The corresponding P16V channel to SRC48 enabled if == 1.
249 * [31:24] The corresponding E10K2 channel to SRC48 enabled.
251 #define SRCMULTI_ENABLE 0x6e /* SRCMulti input audio enable. Default 0xffffffff */
252 /* SRCMulti converts 48khz samples rates to 44.1, 48, 96, 192 to 48. */
253 /* [7:0] The corresponding P16V channel to SRCMulti_I2S enabled if == 1.
254 * [15:8] The corresponding E10K2 channel to SRCMulti I2S enabled.
255 * [23:16] The corresponding P16V channel to SRCMulti SPDIF enabled.
256 * [31:24] The corresponding E10K2 channel to SRCMulti SPDIF enabled.
258 /* Bypass P16V 0xff00ff00
259 * Bitmap. 0 = Off, 1 = On.
260 * P16V playback outputs:
261 * 0xXXXXXXX1 = PCM0 Left. (Front)
262 * 0xXXXXXXX2 = PCM0 Right.
263 * 0xXXXXXXX4 = PCM1 Left. (Center/LFE)
264 * 0xXXXXXXX8 = PCM1 Right.
265 * 0xXXXXXX1X = PCM2 Left. (Unknown)
266 * 0xXXXXXX2X = PCM2 Right.
267 * 0xXXXXXX4X = PCM3 Left. (Rear)
268 * 0xXXXXXX8X = PCM3 Right.
270 #define AUDIO_OUT_ENABLE 0x6f /* Default: 000100FF */
271 /* [3:0] Does something, but not documented. Probably capture enable.
272 * [7:4] Playback channels enable. not documented.
273 * [16] AC97 output enable if == 1
274 * [30] 0 = SRCMulti_I2S input from fxengine 0x68-0x6f.
275 * 1 = SRCMulti_I2S input from SRC48 output.
276 * [31] 0 = SRCMulti_SPDIF input from fxengine 0x60-0x67.
277 * 1 = SRCMulti_SPDIF input from SRC48 output.
279 /* 0xffffffff -> C00100FF */
280 /* 0 -> Not playback sound, irq still running */
281 /* 0xXXXXXX10 = PCM0 Left/Right On. (Front)
282 * 0xXXXXXX20 = PCM1 Left/Right On. (Center/LFE)
283 * 0xXXXXXX40 = PCM2 Left/Right On. (Unknown)
284 * 0xXXXXXX80 = PCM3 Left/Right On. (Rear)
286 #define PLAYBACK_SPDIF_SELECT 0x70 /* Default: 12030F00 */
287 /* 0xffffffff -> 3FF30FFF */
288 /* 0x00000001 pauses stream/irq fail. */
289 /* All other bits do not effect playback */
290 #define PLAYBACK_SPDIF_SRC_SELECT 0x71 /* Default: 0000E4E4 */
291 /* 0xffffffff -> F33FFFFF */
292 /* All bits do not effect playback */
293 #define PLAYBACK_SPDIF_USER_DATA0 0x72 /* SPDIF out user data 0 */
294 #define PLAYBACK_SPDIF_USER_DATA1 0x73 /* SPDIF out user data 1 */
295 /* 0x74-0x75 unknown */
296 #define CAPTURE_SPDIF_CONTROL 0x76 /* SPDIF in control setting */
297 #define CAPTURE_SPDIF_STATUS 0x77 /* SPDIF in status */
298 #define CAPURE_SPDIF_USER_DATA0 0x78 /* SPDIF in user data 0 */
299 #define CAPURE_SPDIF_USER_DATA1 0x79 /* SPDIF in user data 1 */
300 #define CAPURE_SPDIF_USER_DATA2 0x7a /* SPDIF in user data 2 */