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