1 /* 2 * Driver for ESS Maestro 1/2/2E Sound Card (started 21.8.99) 3 * Copyright (c) by Matze Braun <MatzeBraun@gmx.de>. 4 * Takashi Iwai <tiwai@suse.de> 5 * 6 * Most of the driver code comes from Zach Brown(zab@redhat.com) 7 * Alan Cox OSS Driver 8 * Rewritted from card-es1938.c source. 9 * 10 * TODO: 11 * Perhaps Synth 12 * 13 * This program is free software; you can redistribute it and/or modify 14 * it under the terms of the GNU General Public License as published by 15 * the Free Software Foundation; either version 2 of the License, or 16 * (at your option) any later version. 17 * 18 * This program is distributed in the hope that it will be useful, 19 * but WITHOUT ANY WARRANTY; without even the implied warranty of 20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 21 * GNU General Public License for more details. 22 * 23 * You should have received a copy of the GNU General Public License 24 * along with this program; if not, write to the Free Software 25 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 26 * 27 * 28 * Notes from Zach Brown about the driver code 29 * 30 * Hardware Description 31 * 32 * A working Maestro setup contains the Maestro chip wired to a 33 * codec or 2. In the Maestro we have the APUs, the ASSP, and the 34 * Wavecache. The APUs can be though of as virtual audio routing 35 * channels. They can take data from a number of sources and perform 36 * basic encodings of the data. The wavecache is a storehouse for 37 * PCM data. Typically it deals with PCI and interracts with the 38 * APUs. The ASSP is a wacky DSP like device that ESS is loth 39 * to release docs on. Thankfully it isn't required on the Maestro 40 * until you start doing insane things like FM emulation and surround 41 * encoding. The codecs are almost always AC-97 compliant codecs, 42 * but it appears that early Maestros may have had PT101 (an ESS 43 * part?) wired to them. The only real difference in the Maestro 44 * families is external goop like docking capability, memory for 45 * the ASSP, and initialization differences. 46 * 47 * Driver Operation 48 * 49 * We only drive the APU/Wavecache as typical DACs and drive the 50 * mixers in the codecs. There are 64 APUs. We assign 6 to each 51 * /dev/dsp? device. 2 channels for output, and 4 channels for 52 * input. 53 * 54 * Each APU can do a number of things, but we only really use 55 * 3 basic functions. For playback we use them to convert PCM 56 * data fetched over PCI by the wavecahche into analog data that 57 * is handed to the codec. One APU for mono, and a pair for stereo. 58 * When in stereo, the combination of smarts in the APU and Wavecache 59 * decide which wavecache gets the left or right channel. 60 * 61 * For record we still use the old overly mono system. For each in 62 * coming channel the data comes in from the codec, through a 'input' 63 * APU, through another rate converter APU, and then into memory via 64 * the wavecache and PCI. If its stereo, we mash it back into LRLR in 65 * software. The pass between the 2 APUs is supposedly what requires us 66 * to have a 512 byte buffer sitting around in wavecache/memory. 67 * 68 * The wavecache makes our life even more fun. First off, it can 69 * only address the first 28 bits of PCI address space, making it 70 * useless on quite a few architectures. Secondly, its insane. 71 * It claims to fetch from 4 regions of PCI space, each 4 meg in length. 72 * But that doesn't really work. You can only use 1 region. So all our 73 * allocations have to be in 4meg of each other. Booo. Hiss. 74 * So we have a module parameter, dsps_order, that is the order of 75 * the number of dsps to provide. All their buffer space is allocated 76 * on open time. The sonicvibes OSS routines we inherited really want 77 * power of 2 buffers, so we have all those next to each other, then 78 * 512 byte regions for the recording wavecaches. This ends up 79 * wasting quite a bit of memory. The only fixes I can see would be 80 * getting a kernel allocator that could work in zones, or figuring out 81 * just how to coerce the WP into doing what we want. 82 * 83 * The indirection of the various registers means we have to spinlock 84 * nearly all register accesses. We have the main register indirection 85 * like the wave cache, maestro registers, etc. Then we have beasts 86 * like the APU interface that is indirect registers gotten at through 87 * the main maestro indirection. Ouch. We spinlock around the actual 88 * ports on a per card basis. This means spinlock activity at each IO 89 * operation, but the only IO operation clusters are in non critical 90 * paths and it makes the code far easier to follow. Interrupts are 91 * blocked while holding the locks because the int handler has to 92 * get at some of them :(. The mixer interface doesn't, however. 93 * We also have an OSS state lock that is thrown around in a few 94 * places. 95 */ 96 97 #include <asm/io.h> 98 #include <linux/delay.h> 99 #include <linux/interrupt.h> 100 #include <linux/init.h> 101 #include <linux/pci.h> 102 #include <linux/dma-mapping.h> 103 #include <linux/slab.h> 104 #include <linux/gameport.h> 105 #include <linux/module.h> 106 #include <linux/mutex.h> 107 #include <linux/input.h> 108 109 #include <sound/core.h> 110 #include <sound/pcm.h> 111 #include <sound/mpu401.h> 112 #include <sound/ac97_codec.h> 113 #include <sound/initval.h> 114 115 #ifdef CONFIG_SND_ES1968_RADIO 116 #include <media/tea575x.h> 117 #endif 118 119 #define CARD_NAME "ESS Maestro1/2" 120 #define DRIVER_NAME "ES1968" 121 122 MODULE_DESCRIPTION("ESS Maestro"); 123 MODULE_LICENSE("GPL"); 124 MODULE_SUPPORTED_DEVICE("{{ESS,Maestro 2e}," 125 "{ESS,Maestro 2}," 126 "{ESS,Maestro 1}," 127 "{TerraTec,DMX}}"); 128 129 #if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE)) 130 #define SUPPORT_JOYSTICK 1 131 #endif 132 133 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 1-MAX */ 134 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ 135 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */ 136 static int total_bufsize[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 1024 }; 137 static int pcm_substreams_p[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 4 }; 138 static int pcm_substreams_c[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 1 }; 139 static int clock[SNDRV_CARDS]; 140 static int use_pm[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 2}; 141 static int enable_mpu[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 2}; 142 #ifdef SUPPORT_JOYSTICK 143 static bool joystick[SNDRV_CARDS]; 144 #endif 145 static int radio_nr[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -1}; 146 147 module_param_array(index, int, NULL, 0444); 148 MODULE_PARM_DESC(index, "Index value for " CARD_NAME " soundcard."); 149 module_param_array(id, charp, NULL, 0444); 150 MODULE_PARM_DESC(id, "ID string for " CARD_NAME " soundcard."); 151 module_param_array(enable, bool, NULL, 0444); 152 MODULE_PARM_DESC(enable, "Enable " CARD_NAME " soundcard."); 153 module_param_array(total_bufsize, int, NULL, 0444); 154 MODULE_PARM_DESC(total_bufsize, "Total buffer size in kB."); 155 module_param_array(pcm_substreams_p, int, NULL, 0444); 156 MODULE_PARM_DESC(pcm_substreams_p, "PCM Playback substreams for " CARD_NAME " soundcard."); 157 module_param_array(pcm_substreams_c, int, NULL, 0444); 158 MODULE_PARM_DESC(pcm_substreams_c, "PCM Capture substreams for " CARD_NAME " soundcard."); 159 module_param_array(clock, int, NULL, 0444); 160 MODULE_PARM_DESC(clock, "Clock on " CARD_NAME " soundcard. (0 = auto-detect)"); 161 module_param_array(use_pm, int, NULL, 0444); 162 MODULE_PARM_DESC(use_pm, "Toggle power-management. (0 = off, 1 = on, 2 = auto)"); 163 module_param_array(enable_mpu, int, NULL, 0444); 164 MODULE_PARM_DESC(enable_mpu, "Enable MPU401. (0 = off, 1 = on, 2 = auto)"); 165 #ifdef SUPPORT_JOYSTICK 166 module_param_array(joystick, bool, NULL, 0444); 167 MODULE_PARM_DESC(joystick, "Enable joystick."); 168 #endif 169 module_param_array(radio_nr, int, NULL, 0444); 170 MODULE_PARM_DESC(radio_nr, "Radio device numbers"); 171 172 173 174 #define NR_APUS 64 175 #define NR_APU_REGS 16 176 177 /* NEC Versas ? */ 178 #define NEC_VERSA_SUBID1 0x80581033 179 #define NEC_VERSA_SUBID2 0x803c1033 180 181 /* Mode Flags */ 182 #define ESS_FMT_STEREO 0x01 183 #define ESS_FMT_16BIT 0x02 184 185 #define DAC_RUNNING 1 186 #define ADC_RUNNING 2 187 188 /* Values for the ESM_LEGACY_AUDIO_CONTROL */ 189 190 #define ESS_DISABLE_AUDIO 0x8000 191 #define ESS_ENABLE_SERIAL_IRQ 0x4000 192 #define IO_ADRESS_ALIAS 0x0020 193 #define MPU401_IRQ_ENABLE 0x0010 194 #define MPU401_IO_ENABLE 0x0008 195 #define GAME_IO_ENABLE 0x0004 196 #define FM_IO_ENABLE 0x0002 197 #define SB_IO_ENABLE 0x0001 198 199 /* Values for the ESM_CONFIG_A */ 200 201 #define PIC_SNOOP1 0x4000 202 #define PIC_SNOOP2 0x2000 203 #define SAFEGUARD 0x0800 204 #define DMA_CLEAR 0x0700 205 #define DMA_DDMA 0x0000 206 #define DMA_TDMA 0x0100 207 #define DMA_PCPCI 0x0200 208 #define POST_WRITE 0x0080 209 #define PCI_TIMING 0x0040 210 #define SWAP_LR 0x0020 211 #define SUBTR_DECODE 0x0002 212 213 /* Values for the ESM_CONFIG_B */ 214 215 #define SPDIF_CONFB 0x0100 216 #define HWV_CONFB 0x0080 217 #define DEBOUNCE 0x0040 218 #define GPIO_CONFB 0x0020 219 #define CHI_CONFB 0x0010 220 #define IDMA_CONFB 0x0008 /*undoc */ 221 #define MIDI_FIX 0x0004 /*undoc */ 222 #define IRQ_TO_ISA 0x0001 /*undoc */ 223 224 /* Values for Ring Bus Control B */ 225 #define RINGB_2CODEC_ID_MASK 0x0003 226 #define RINGB_DIS_VALIDATION 0x0008 227 #define RINGB_EN_SPDIF 0x0010 228 #define RINGB_EN_2CODEC 0x0020 229 #define RINGB_SING_BIT_DUAL 0x0040 230 231 /* ****Port Addresses**** */ 232 233 /* Write & Read */ 234 #define ESM_INDEX 0x02 235 #define ESM_DATA 0x00 236 237 /* AC97 + RingBus */ 238 #define ESM_AC97_INDEX 0x30 239 #define ESM_AC97_DATA 0x32 240 #define ESM_RING_BUS_DEST 0x34 241 #define ESM_RING_BUS_CONTR_A 0x36 242 #define ESM_RING_BUS_CONTR_B 0x38 243 #define ESM_RING_BUS_SDO 0x3A 244 245 /* WaveCache*/ 246 #define WC_INDEX 0x10 247 #define WC_DATA 0x12 248 #define WC_CONTROL 0x14 249 250 /* ASSP*/ 251 #define ASSP_INDEX 0x80 252 #define ASSP_MEMORY 0x82 253 #define ASSP_DATA 0x84 254 #define ASSP_CONTROL_A 0xA2 255 #define ASSP_CONTROL_B 0xA4 256 #define ASSP_CONTROL_C 0xA6 257 #define ASSP_HOSTW_INDEX 0xA8 258 #define ASSP_HOSTW_DATA 0xAA 259 #define ASSP_HOSTW_IRQ 0xAC 260 /* Midi */ 261 #define ESM_MPU401_PORT 0x98 262 /* Others */ 263 #define ESM_PORT_HOST_IRQ 0x18 264 265 #define IDR0_DATA_PORT 0x00 266 #define IDR1_CRAM_POINTER 0x01 267 #define IDR2_CRAM_DATA 0x02 268 #define IDR3_WAVE_DATA 0x03 269 #define IDR4_WAVE_PTR_LOW 0x04 270 #define IDR5_WAVE_PTR_HI 0x05 271 #define IDR6_TIMER_CTRL 0x06 272 #define IDR7_WAVE_ROMRAM 0x07 273 274 #define WRITEABLE_MAP 0xEFFFFF 275 #define READABLE_MAP 0x64003F 276 277 /* PCI Register */ 278 279 #define ESM_LEGACY_AUDIO_CONTROL 0x40 280 #define ESM_ACPI_COMMAND 0x54 281 #define ESM_CONFIG_A 0x50 282 #define ESM_CONFIG_B 0x52 283 #define ESM_DDMA 0x60 284 285 /* Bob Bits */ 286 #define ESM_BOB_ENABLE 0x0001 287 #define ESM_BOB_START 0x0001 288 289 /* Host IRQ Control Bits */ 290 #define ESM_RESET_MAESTRO 0x8000 291 #define ESM_RESET_DIRECTSOUND 0x4000 292 #define ESM_HIRQ_ClkRun 0x0100 293 #define ESM_HIRQ_HW_VOLUME 0x0040 294 #define ESM_HIRQ_HARPO 0x0030 /* What's that? */ 295 #define ESM_HIRQ_ASSP 0x0010 296 #define ESM_HIRQ_DSIE 0x0004 297 #define ESM_HIRQ_MPU401 0x0002 298 #define ESM_HIRQ_SB 0x0001 299 300 /* Host IRQ Status Bits */ 301 #define ESM_MPU401_IRQ 0x02 302 #define ESM_SB_IRQ 0x01 303 #define ESM_SOUND_IRQ 0x04 304 #define ESM_ASSP_IRQ 0x10 305 #define ESM_HWVOL_IRQ 0x40 306 307 #define ESS_SYSCLK 50000000 308 #define ESM_BOB_FREQ 200 309 #define ESM_BOB_FREQ_MAX 800 310 311 #define ESM_FREQ_ESM1 (49152000L / 1024L) /* default rate 48000 */ 312 #define ESM_FREQ_ESM2 (50000000L / 1024L) 313 314 /* APU Modes: reg 0x00, bit 4-7 */ 315 #define ESM_APU_MODE_SHIFT 4 316 #define ESM_APU_MODE_MASK (0xf << 4) 317 #define ESM_APU_OFF 0x00 318 #define ESM_APU_16BITLINEAR 0x01 /* 16-Bit Linear Sample Player */ 319 #define ESM_APU_16BITSTEREO 0x02 /* 16-Bit Stereo Sample Player */ 320 #define ESM_APU_8BITLINEAR 0x03 /* 8-Bit Linear Sample Player */ 321 #define ESM_APU_8BITSTEREO 0x04 /* 8-Bit Stereo Sample Player */ 322 #define ESM_APU_8BITDIFF 0x05 /* 8-Bit Differential Sample Playrer */ 323 #define ESM_APU_DIGITALDELAY 0x06 /* Digital Delay Line */ 324 #define ESM_APU_DUALTAP 0x07 /* Dual Tap Reader */ 325 #define ESM_APU_CORRELATOR 0x08 /* Correlator */ 326 #define ESM_APU_INPUTMIXER 0x09 /* Input Mixer */ 327 #define ESM_APU_WAVETABLE 0x0A /* Wave Table Mode */ 328 #define ESM_APU_SRCONVERTOR 0x0B /* Sample Rate Convertor */ 329 #define ESM_APU_16BITPINGPONG 0x0C /* 16-Bit Ping-Pong Sample Player */ 330 #define ESM_APU_RESERVED1 0x0D /* Reserved 1 */ 331 #define ESM_APU_RESERVED2 0x0E /* Reserved 2 */ 332 #define ESM_APU_RESERVED3 0x0F /* Reserved 3 */ 333 334 /* reg 0x00 */ 335 #define ESM_APU_FILTER_Q_SHIFT 0 336 #define ESM_APU_FILTER_Q_MASK (3 << 0) 337 /* APU Filtey Q Control */ 338 #define ESM_APU_FILTER_LESSQ 0x00 339 #define ESM_APU_FILTER_MOREQ 0x03 340 341 #define ESM_APU_FILTER_TYPE_SHIFT 2 342 #define ESM_APU_FILTER_TYPE_MASK (3 << 2) 343 #define ESM_APU_ENV_TYPE_SHIFT 8 344 #define ESM_APU_ENV_TYPE_MASK (3 << 8) 345 #define ESM_APU_ENV_STATE_SHIFT 10 346 #define ESM_APU_ENV_STATE_MASK (3 << 10) 347 #define ESM_APU_END_CURVE (1 << 12) 348 #define ESM_APU_INT_ON_LOOP (1 << 13) 349 #define ESM_APU_DMA_ENABLE (1 << 14) 350 351 /* reg 0x02 */ 352 #define ESM_APU_SUBMIX_GROUP_SHIRT 0 353 #define ESM_APU_SUBMIX_GROUP_MASK (7 << 0) 354 #define ESM_APU_SUBMIX_MODE (1 << 3) 355 #define ESM_APU_6dB (1 << 4) 356 #define ESM_APU_DUAL_EFFECT (1 << 5) 357 #define ESM_APU_EFFECT_CHANNELS_SHIFT 6 358 #define ESM_APU_EFFECT_CHANNELS_MASK (3 << 6) 359 360 /* reg 0x03 */ 361 #define ESM_APU_STEP_SIZE_MASK 0x0fff 362 363 /* reg 0x04 */ 364 #define ESM_APU_PHASE_SHIFT 0 365 #define ESM_APU_PHASE_MASK (0xff << 0) 366 #define ESM_APU_WAVE64K_PAGE_SHIFT 8 /* most 8bit of wave start offset */ 367 #define ESM_APU_WAVE64K_PAGE_MASK (0xff << 8) 368 369 /* reg 0x05 - wave start offset */ 370 /* reg 0x06 - wave end offset */ 371 /* reg 0x07 - wave loop length */ 372 373 /* reg 0x08 */ 374 #define ESM_APU_EFFECT_GAIN_SHIFT 0 375 #define ESM_APU_EFFECT_GAIN_MASK (0xff << 0) 376 #define ESM_APU_TREMOLO_DEPTH_SHIFT 8 377 #define ESM_APU_TREMOLO_DEPTH_MASK (0xf << 8) 378 #define ESM_APU_TREMOLO_RATE_SHIFT 12 379 #define ESM_APU_TREMOLO_RATE_MASK (0xf << 12) 380 381 /* reg 0x09 */ 382 /* bit 0-7 amplitude dest? */ 383 #define ESM_APU_AMPLITUDE_NOW_SHIFT 8 384 #define ESM_APU_AMPLITUDE_NOW_MASK (0xff << 8) 385 386 /* reg 0x0a */ 387 #define ESM_APU_POLAR_PAN_SHIFT 0 388 #define ESM_APU_POLAR_PAN_MASK (0x3f << 0) 389 /* Polar Pan Control */ 390 #define ESM_APU_PAN_CENTER_CIRCLE 0x00 391 #define ESM_APU_PAN_MIDDLE_RADIUS 0x01 392 #define ESM_APU_PAN_OUTSIDE_RADIUS 0x02 393 394 #define ESM_APU_FILTER_TUNING_SHIFT 8 395 #define ESM_APU_FILTER_TUNING_MASK (0xff << 8) 396 397 /* reg 0x0b */ 398 #define ESM_APU_DATA_SRC_A_SHIFT 0 399 #define ESM_APU_DATA_SRC_A_MASK (0x7f << 0) 400 #define ESM_APU_INV_POL_A (1 << 7) 401 #define ESM_APU_DATA_SRC_B_SHIFT 8 402 #define ESM_APU_DATA_SRC_B_MASK (0x7f << 8) 403 #define ESM_APU_INV_POL_B (1 << 15) 404 405 #define ESM_APU_VIBRATO_RATE_SHIFT 0 406 #define ESM_APU_VIBRATO_RATE_MASK (0xf << 0) 407 #define ESM_APU_VIBRATO_DEPTH_SHIFT 4 408 #define ESM_APU_VIBRATO_DEPTH_MASK (0xf << 4) 409 #define ESM_APU_VIBRATO_PHASE_SHIFT 8 410 #define ESM_APU_VIBRATO_PHASE_MASK (0xff << 8) 411 412 /* reg 0x0c */ 413 #define ESM_APU_RADIUS_SELECT (1 << 6) 414 415 /* APU Filter Control */ 416 #define ESM_APU_FILTER_2POLE_LOPASS 0x00 417 #define ESM_APU_FILTER_2POLE_BANDPASS 0x01 418 #define ESM_APU_FILTER_2POLE_HIPASS 0x02 419 #define ESM_APU_FILTER_1POLE_LOPASS 0x03 420 #define ESM_APU_FILTER_1POLE_HIPASS 0x04 421 #define ESM_APU_FILTER_OFF 0x05 422 423 /* APU ATFP Type */ 424 #define ESM_APU_ATFP_AMPLITUDE 0x00 425 #define ESM_APU_ATFP_TREMELO 0x01 426 #define ESM_APU_ATFP_FILTER 0x02 427 #define ESM_APU_ATFP_PAN 0x03 428 429 /* APU ATFP Flags */ 430 #define ESM_APU_ATFP_FLG_OFF 0x00 431 #define ESM_APU_ATFP_FLG_WAIT 0x01 432 #define ESM_APU_ATFP_FLG_DONE 0x02 433 #define ESM_APU_ATFP_FLG_INPROCESS 0x03 434 435 436 /* capture mixing buffer size */ 437 #define ESM_MEM_ALIGN 0x1000 438 #define ESM_MIXBUF_SIZE 0x400 439 440 #define ESM_MODE_PLAY 0 441 #define ESM_MODE_CAPTURE 1 442 443 444 /* APU use in the driver */ 445 enum snd_enum_apu_type { 446 ESM_APU_PCM_PLAY, 447 ESM_APU_PCM_CAPTURE, 448 ESM_APU_PCM_RATECONV, 449 ESM_APU_FREE 450 }; 451 452 /* chip type */ 453 enum { 454 TYPE_MAESTRO, TYPE_MAESTRO2, TYPE_MAESTRO2E 455 }; 456 457 /* DMA Hack! */ 458 struct esm_memory { 459 struct snd_dma_buffer buf; 460 int empty; /* status */ 461 struct list_head list; 462 }; 463 464 /* Playback Channel */ 465 struct esschan { 466 int running; 467 468 u8 apu[4]; 469 u8 apu_mode[4]; 470 471 /* playback/capture pcm buffer */ 472 struct esm_memory *memory; 473 /* capture mixer buffer */ 474 struct esm_memory *mixbuf; 475 476 unsigned int hwptr; /* current hw pointer in bytes */ 477 unsigned int count; /* sample counter in bytes */ 478 unsigned int dma_size; /* total buffer size in bytes */ 479 unsigned int frag_size; /* period size in bytes */ 480 unsigned int wav_shift; 481 u16 base[4]; /* offset for ptr */ 482 483 /* stereo/16bit flag */ 484 unsigned char fmt; 485 int mode; /* playback / capture */ 486 487 int bob_freq; /* required timer frequency */ 488 489 struct snd_pcm_substream *substream; 490 491 /* linked list */ 492 struct list_head list; 493 494 #ifdef CONFIG_PM_SLEEP 495 u16 wc_map[4]; 496 #endif 497 }; 498 499 struct es1968 { 500 /* Module Config */ 501 int total_bufsize; /* in bytes */ 502 503 int playback_streams, capture_streams; 504 505 unsigned int clock; /* clock */ 506 /* for clock measurement */ 507 unsigned int in_measurement: 1; 508 unsigned int measure_apu; 509 unsigned int measure_lastpos; 510 unsigned int measure_count; 511 512 /* buffer */ 513 struct snd_dma_buffer dma; 514 515 /* Resources... */ 516 int irq; 517 unsigned long io_port; 518 int type; 519 struct pci_dev *pci; 520 struct snd_card *card; 521 struct snd_pcm *pcm; 522 int do_pm; /* power-management enabled */ 523 524 /* DMA memory block */ 525 struct list_head buf_list; 526 527 /* ALSA Stuff */ 528 struct snd_ac97 *ac97; 529 struct snd_rawmidi *rmidi; 530 531 spinlock_t reg_lock; 532 unsigned int in_suspend; 533 534 /* Maestro Stuff */ 535 u16 maestro_map[32]; 536 int bobclient; /* active timer instancs */ 537 int bob_freq; /* timer frequency */ 538 struct mutex memory_mutex; /* memory lock */ 539 540 /* APU states */ 541 unsigned char apu[NR_APUS]; 542 543 /* active substreams */ 544 struct list_head substream_list; 545 spinlock_t substream_lock; 546 547 #ifdef CONFIG_PM_SLEEP 548 u16 apu_map[NR_APUS][NR_APU_REGS]; 549 #endif 550 551 #ifdef SUPPORT_JOYSTICK 552 struct gameport *gameport; 553 #endif 554 555 #ifdef CONFIG_SND_ES1968_INPUT 556 struct input_dev *input_dev; 557 char phys[64]; /* physical device path */ 558 #else 559 struct snd_kcontrol *master_switch; /* for h/w volume control */ 560 struct snd_kcontrol *master_volume; 561 #endif 562 struct work_struct hwvol_work; 563 564 #ifdef CONFIG_SND_ES1968_RADIO 565 struct v4l2_device v4l2_dev; 566 struct snd_tea575x tea; 567 unsigned int tea575x_tuner; 568 #endif 569 }; 570 571 static irqreturn_t snd_es1968_interrupt(int irq, void *dev_id); 572 573 static const struct pci_device_id snd_es1968_ids[] = { 574 /* Maestro 1 */ 575 { 0x1285, 0x0100, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, TYPE_MAESTRO }, 576 /* Maestro 2 */ 577 { 0x125d, 0x1968, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, TYPE_MAESTRO2 }, 578 /* Maestro 2E */ 579 { 0x125d, 0x1978, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, TYPE_MAESTRO2E }, 580 { 0, } 581 }; 582 583 MODULE_DEVICE_TABLE(pci, snd_es1968_ids); 584 585 /* ********************* 586 * Low Level Funcs! * 587 *********************/ 588 589 /* no spinlock */ 590 static void __maestro_write(struct es1968 *chip, u16 reg, u16 data) 591 { 592 outw(reg, chip->io_port + ESM_INDEX); 593 outw(data, chip->io_port + ESM_DATA); 594 chip->maestro_map[reg] = data; 595 } 596 597 static inline void maestro_write(struct es1968 *chip, u16 reg, u16 data) 598 { 599 unsigned long flags; 600 spin_lock_irqsave(&chip->reg_lock, flags); 601 __maestro_write(chip, reg, data); 602 spin_unlock_irqrestore(&chip->reg_lock, flags); 603 } 604 605 /* no spinlock */ 606 static u16 __maestro_read(struct es1968 *chip, u16 reg) 607 { 608 if (READABLE_MAP & (1 << reg)) { 609 outw(reg, chip->io_port + ESM_INDEX); 610 chip->maestro_map[reg] = inw(chip->io_port + ESM_DATA); 611 } 612 return chip->maestro_map[reg]; 613 } 614 615 static inline u16 maestro_read(struct es1968 *chip, u16 reg) 616 { 617 unsigned long flags; 618 u16 result; 619 spin_lock_irqsave(&chip->reg_lock, flags); 620 result = __maestro_read(chip, reg); 621 spin_unlock_irqrestore(&chip->reg_lock, flags); 622 return result; 623 } 624 625 /* Wait for the codec bus to be free */ 626 static int snd_es1968_ac97_wait(struct es1968 *chip) 627 { 628 int timeout = 100000; 629 630 while (timeout-- > 0) { 631 if (!(inb(chip->io_port + ESM_AC97_INDEX) & 1)) 632 return 0; 633 cond_resched(); 634 } 635 dev_dbg(chip->card->dev, "ac97 timeout\n"); 636 return 1; /* timeout */ 637 } 638 639 static int snd_es1968_ac97_wait_poll(struct es1968 *chip) 640 { 641 int timeout = 100000; 642 643 while (timeout-- > 0) { 644 if (!(inb(chip->io_port + ESM_AC97_INDEX) & 1)) 645 return 0; 646 } 647 dev_dbg(chip->card->dev, "ac97 timeout\n"); 648 return 1; /* timeout */ 649 } 650 651 static void snd_es1968_ac97_write(struct snd_ac97 *ac97, unsigned short reg, unsigned short val) 652 { 653 struct es1968 *chip = ac97->private_data; 654 655 snd_es1968_ac97_wait(chip); 656 657 /* Write the bus */ 658 outw(val, chip->io_port + ESM_AC97_DATA); 659 /*msleep(1);*/ 660 outb(reg, chip->io_port + ESM_AC97_INDEX); 661 /*msleep(1);*/ 662 } 663 664 static unsigned short snd_es1968_ac97_read(struct snd_ac97 *ac97, unsigned short reg) 665 { 666 u16 data = 0; 667 struct es1968 *chip = ac97->private_data; 668 669 snd_es1968_ac97_wait(chip); 670 671 outb(reg | 0x80, chip->io_port + ESM_AC97_INDEX); 672 /*msleep(1);*/ 673 674 if (!snd_es1968_ac97_wait_poll(chip)) { 675 data = inw(chip->io_port + ESM_AC97_DATA); 676 /*msleep(1);*/ 677 } 678 679 return data; 680 } 681 682 /* no spinlock */ 683 static void apu_index_set(struct es1968 *chip, u16 index) 684 { 685 int i; 686 __maestro_write(chip, IDR1_CRAM_POINTER, index); 687 for (i = 0; i < 1000; i++) 688 if (__maestro_read(chip, IDR1_CRAM_POINTER) == index) 689 return; 690 dev_dbg(chip->card->dev, "APU register select failed. (Timeout)\n"); 691 } 692 693 /* no spinlock */ 694 static void apu_data_set(struct es1968 *chip, u16 data) 695 { 696 int i; 697 for (i = 0; i < 1000; i++) { 698 if (__maestro_read(chip, IDR0_DATA_PORT) == data) 699 return; 700 __maestro_write(chip, IDR0_DATA_PORT, data); 701 } 702 dev_dbg(chip->card->dev, "APU register set probably failed (Timeout)!\n"); 703 } 704 705 /* no spinlock */ 706 static void __apu_set_register(struct es1968 *chip, u16 channel, u8 reg, u16 data) 707 { 708 if (snd_BUG_ON(channel >= NR_APUS)) 709 return; 710 #ifdef CONFIG_PM_SLEEP 711 chip->apu_map[channel][reg] = data; 712 #endif 713 reg |= (channel << 4); 714 apu_index_set(chip, reg); 715 apu_data_set(chip, data); 716 } 717 718 static void apu_set_register(struct es1968 *chip, u16 channel, u8 reg, u16 data) 719 { 720 unsigned long flags; 721 spin_lock_irqsave(&chip->reg_lock, flags); 722 __apu_set_register(chip, channel, reg, data); 723 spin_unlock_irqrestore(&chip->reg_lock, flags); 724 } 725 726 static u16 __apu_get_register(struct es1968 *chip, u16 channel, u8 reg) 727 { 728 if (snd_BUG_ON(channel >= NR_APUS)) 729 return 0; 730 reg |= (channel << 4); 731 apu_index_set(chip, reg); 732 return __maestro_read(chip, IDR0_DATA_PORT); 733 } 734 735 static u16 apu_get_register(struct es1968 *chip, u16 channel, u8 reg) 736 { 737 unsigned long flags; 738 u16 v; 739 spin_lock_irqsave(&chip->reg_lock, flags); 740 v = __apu_get_register(chip, channel, reg); 741 spin_unlock_irqrestore(&chip->reg_lock, flags); 742 return v; 743 } 744 745 #if 0 /* ASSP is not supported */ 746 747 static void assp_set_register(struct es1968 *chip, u32 reg, u32 value) 748 { 749 unsigned long flags; 750 751 spin_lock_irqsave(&chip->reg_lock, flags); 752 outl(reg, chip->io_port + ASSP_INDEX); 753 outl(value, chip->io_port + ASSP_DATA); 754 spin_unlock_irqrestore(&chip->reg_lock, flags); 755 } 756 757 static u32 assp_get_register(struct es1968 *chip, u32 reg) 758 { 759 unsigned long flags; 760 u32 value; 761 762 spin_lock_irqsave(&chip->reg_lock, flags); 763 outl(reg, chip->io_port + ASSP_INDEX); 764 value = inl(chip->io_port + ASSP_DATA); 765 spin_unlock_irqrestore(&chip->reg_lock, flags); 766 767 return value; 768 } 769 770 #endif 771 772 static void wave_set_register(struct es1968 *chip, u16 reg, u16 value) 773 { 774 unsigned long flags; 775 776 spin_lock_irqsave(&chip->reg_lock, flags); 777 outw(reg, chip->io_port + WC_INDEX); 778 outw(value, chip->io_port + WC_DATA); 779 spin_unlock_irqrestore(&chip->reg_lock, flags); 780 } 781 782 static u16 wave_get_register(struct es1968 *chip, u16 reg) 783 { 784 unsigned long flags; 785 u16 value; 786 787 spin_lock_irqsave(&chip->reg_lock, flags); 788 outw(reg, chip->io_port + WC_INDEX); 789 value = inw(chip->io_port + WC_DATA); 790 spin_unlock_irqrestore(&chip->reg_lock, flags); 791 792 return value; 793 } 794 795 /* ******************* 796 * Bob the Timer! * 797 *******************/ 798 799 static void snd_es1968_bob_stop(struct es1968 *chip) 800 { 801 u16 reg; 802 803 reg = __maestro_read(chip, 0x11); 804 reg &= ~ESM_BOB_ENABLE; 805 __maestro_write(chip, 0x11, reg); 806 reg = __maestro_read(chip, 0x17); 807 reg &= ~ESM_BOB_START; 808 __maestro_write(chip, 0x17, reg); 809 } 810 811 static void snd_es1968_bob_start(struct es1968 *chip) 812 { 813 int prescale; 814 int divide; 815 816 /* compute ideal interrupt frequency for buffer size & play rate */ 817 /* first, find best prescaler value to match freq */ 818 for (prescale = 5; prescale < 12; prescale++) 819 if (chip->bob_freq > (ESS_SYSCLK >> (prescale + 9))) 820 break; 821 822 /* next, back off prescaler whilst getting divider into optimum range */ 823 divide = 1; 824 while ((prescale > 5) && (divide < 32)) { 825 prescale--; 826 divide <<= 1; 827 } 828 divide >>= 1; 829 830 /* now fine-tune the divider for best match */ 831 for (; divide < 31; divide++) 832 if (chip->bob_freq > 833 ((ESS_SYSCLK >> (prescale + 9)) / (divide + 1))) break; 834 835 /* divide = 0 is illegal, but don't let prescale = 4! */ 836 if (divide == 0) { 837 divide++; 838 if (prescale > 5) 839 prescale--; 840 } else if (divide > 1) 841 divide--; 842 843 __maestro_write(chip, 6, 0x9000 | (prescale << 5) | divide); /* set reg */ 844 845 /* Now set IDR 11/17 */ 846 __maestro_write(chip, 0x11, __maestro_read(chip, 0x11) | 1); 847 __maestro_write(chip, 0x17, __maestro_read(chip, 0x17) | 1); 848 } 849 850 /* call with substream spinlock */ 851 static void snd_es1968_bob_inc(struct es1968 *chip, int freq) 852 { 853 chip->bobclient++; 854 if (chip->bobclient == 1) { 855 chip->bob_freq = freq; 856 snd_es1968_bob_start(chip); 857 } else if (chip->bob_freq < freq) { 858 snd_es1968_bob_stop(chip); 859 chip->bob_freq = freq; 860 snd_es1968_bob_start(chip); 861 } 862 } 863 864 /* call with substream spinlock */ 865 static void snd_es1968_bob_dec(struct es1968 *chip) 866 { 867 chip->bobclient--; 868 if (chip->bobclient <= 0) 869 snd_es1968_bob_stop(chip); 870 else if (chip->bob_freq > ESM_BOB_FREQ) { 871 /* check reduction of timer frequency */ 872 int max_freq = ESM_BOB_FREQ; 873 struct esschan *es; 874 list_for_each_entry(es, &chip->substream_list, list) { 875 if (max_freq < es->bob_freq) 876 max_freq = es->bob_freq; 877 } 878 if (max_freq != chip->bob_freq) { 879 snd_es1968_bob_stop(chip); 880 chip->bob_freq = max_freq; 881 snd_es1968_bob_start(chip); 882 } 883 } 884 } 885 886 static int 887 snd_es1968_calc_bob_rate(struct es1968 *chip, struct esschan *es, 888 struct snd_pcm_runtime *runtime) 889 { 890 /* we acquire 4 interrupts per period for precise control.. */ 891 int freq = runtime->rate * 4; 892 if (es->fmt & ESS_FMT_STEREO) 893 freq <<= 1; 894 if (es->fmt & ESS_FMT_16BIT) 895 freq <<= 1; 896 freq /= es->frag_size; 897 if (freq < ESM_BOB_FREQ) 898 freq = ESM_BOB_FREQ; 899 else if (freq > ESM_BOB_FREQ_MAX) 900 freq = ESM_BOB_FREQ_MAX; 901 return freq; 902 } 903 904 905 /************* 906 * PCM Part * 907 *************/ 908 909 static u32 snd_es1968_compute_rate(struct es1968 *chip, u32 freq) 910 { 911 u32 rate = (freq << 16) / chip->clock; 912 #if 0 /* XXX: do we need this? */ 913 if (rate > 0x10000) 914 rate = 0x10000; 915 #endif 916 return rate; 917 } 918 919 /* get current pointer */ 920 static inline unsigned int 921 snd_es1968_get_dma_ptr(struct es1968 *chip, struct esschan *es) 922 { 923 unsigned int offset; 924 925 offset = apu_get_register(chip, es->apu[0], 5); 926 927 offset -= es->base[0]; 928 929 return (offset & 0xFFFE); /* hardware is in words */ 930 } 931 932 static void snd_es1968_apu_set_freq(struct es1968 *chip, int apu, int freq) 933 { 934 apu_set_register(chip, apu, 2, 935 (apu_get_register(chip, apu, 2) & 0x00FF) | 936 ((freq & 0xff) << 8) | 0x10); 937 apu_set_register(chip, apu, 3, freq >> 8); 938 } 939 940 /* spin lock held */ 941 static inline void snd_es1968_trigger_apu(struct es1968 *esm, int apu, int mode) 942 { 943 /* set the APU mode */ 944 __apu_set_register(esm, apu, 0, 945 (__apu_get_register(esm, apu, 0) & 0xff0f) | 946 (mode << 4)); 947 } 948 949 static void snd_es1968_pcm_start(struct es1968 *chip, struct esschan *es) 950 { 951 spin_lock(&chip->reg_lock); 952 __apu_set_register(chip, es->apu[0], 5, es->base[0]); 953 snd_es1968_trigger_apu(chip, es->apu[0], es->apu_mode[0]); 954 if (es->mode == ESM_MODE_CAPTURE) { 955 __apu_set_register(chip, es->apu[2], 5, es->base[2]); 956 snd_es1968_trigger_apu(chip, es->apu[2], es->apu_mode[2]); 957 } 958 if (es->fmt & ESS_FMT_STEREO) { 959 __apu_set_register(chip, es->apu[1], 5, es->base[1]); 960 snd_es1968_trigger_apu(chip, es->apu[1], es->apu_mode[1]); 961 if (es->mode == ESM_MODE_CAPTURE) { 962 __apu_set_register(chip, es->apu[3], 5, es->base[3]); 963 snd_es1968_trigger_apu(chip, es->apu[3], es->apu_mode[3]); 964 } 965 } 966 spin_unlock(&chip->reg_lock); 967 } 968 969 static void snd_es1968_pcm_stop(struct es1968 *chip, struct esschan *es) 970 { 971 spin_lock(&chip->reg_lock); 972 snd_es1968_trigger_apu(chip, es->apu[0], 0); 973 snd_es1968_trigger_apu(chip, es->apu[1], 0); 974 if (es->mode == ESM_MODE_CAPTURE) { 975 snd_es1968_trigger_apu(chip, es->apu[2], 0); 976 snd_es1968_trigger_apu(chip, es->apu[3], 0); 977 } 978 spin_unlock(&chip->reg_lock); 979 } 980 981 /* set the wavecache control reg */ 982 static void snd_es1968_program_wavecache(struct es1968 *chip, struct esschan *es, 983 int channel, u32 addr, int capture) 984 { 985 u32 tmpval = (addr - 0x10) & 0xFFF8; 986 987 if (! capture) { 988 if (!(es->fmt & ESS_FMT_16BIT)) 989 tmpval |= 4; /* 8bit */ 990 if (es->fmt & ESS_FMT_STEREO) 991 tmpval |= 2; /* stereo */ 992 } 993 994 /* set the wavecache control reg */ 995 wave_set_register(chip, es->apu[channel] << 3, tmpval); 996 997 #ifdef CONFIG_PM_SLEEP 998 es->wc_map[channel] = tmpval; 999 #endif 1000 } 1001 1002 1003 static void snd_es1968_playback_setup(struct es1968 *chip, struct esschan *es, 1004 struct snd_pcm_runtime *runtime) 1005 { 1006 u32 pa; 1007 int high_apu = 0; 1008 int channel, apu; 1009 int i, size; 1010 unsigned long flags; 1011 u32 freq; 1012 1013 size = es->dma_size >> es->wav_shift; 1014 1015 if (es->fmt & ESS_FMT_STEREO) 1016 high_apu++; 1017 1018 for (channel = 0; channel <= high_apu; channel++) { 1019 apu = es->apu[channel]; 1020 1021 snd_es1968_program_wavecache(chip, es, channel, es->memory->buf.addr, 0); 1022 1023 /* Offset to PCMBAR */ 1024 pa = es->memory->buf.addr; 1025 pa -= chip->dma.addr; 1026 pa >>= 1; /* words */ 1027 1028 pa |= 0x00400000; /* System RAM (Bit 22) */ 1029 1030 if (es->fmt & ESS_FMT_STEREO) { 1031 /* Enable stereo */ 1032 if (channel) 1033 pa |= 0x00800000; /* (Bit 23) */ 1034 if (es->fmt & ESS_FMT_16BIT) 1035 pa >>= 1; 1036 } 1037 1038 /* base offset of dma calcs when reading the pointer 1039 on this left one */ 1040 es->base[channel] = pa & 0xFFFF; 1041 1042 for (i = 0; i < 16; i++) 1043 apu_set_register(chip, apu, i, 0x0000); 1044 1045 /* Load the buffer into the wave engine */ 1046 apu_set_register(chip, apu, 4, ((pa >> 16) & 0xFF) << 8); 1047 apu_set_register(chip, apu, 5, pa & 0xFFFF); 1048 apu_set_register(chip, apu, 6, (pa + size) & 0xFFFF); 1049 /* setting loop == sample len */ 1050 apu_set_register(chip, apu, 7, size); 1051 1052 /* clear effects/env.. */ 1053 apu_set_register(chip, apu, 8, 0x0000); 1054 /* set amp now to 0xd0 (?), low byte is 'amplitude dest'? */ 1055 apu_set_register(chip, apu, 9, 0xD000); 1056 1057 /* clear routing stuff */ 1058 apu_set_register(chip, apu, 11, 0x0000); 1059 /* dma on, no envelopes, filter to all 1s) */ 1060 apu_set_register(chip, apu, 0, 0x400F); 1061 1062 if (es->fmt & ESS_FMT_16BIT) 1063 es->apu_mode[channel] = ESM_APU_16BITLINEAR; 1064 else 1065 es->apu_mode[channel] = ESM_APU_8BITLINEAR; 1066 1067 if (es->fmt & ESS_FMT_STEREO) { 1068 /* set panning: left or right */ 1069 /* Check: different panning. On my Canyon 3D Chipset the 1070 Channels are swapped. I don't know, about the output 1071 to the SPDif Link. Perhaps you have to change this 1072 and not the APU Regs 4-5. */ 1073 apu_set_register(chip, apu, 10, 1074 0x8F00 | (channel ? 0 : 0x10)); 1075 es->apu_mode[channel] += 1; /* stereo */ 1076 } else 1077 apu_set_register(chip, apu, 10, 0x8F08); 1078 } 1079 1080 spin_lock_irqsave(&chip->reg_lock, flags); 1081 /* clear WP interrupts */ 1082 outw(1, chip->io_port + 0x04); 1083 /* enable WP ints */ 1084 outw(inw(chip->io_port + ESM_PORT_HOST_IRQ) | ESM_HIRQ_DSIE, chip->io_port + ESM_PORT_HOST_IRQ); 1085 spin_unlock_irqrestore(&chip->reg_lock, flags); 1086 1087 freq = runtime->rate; 1088 /* set frequency */ 1089 if (freq > 48000) 1090 freq = 48000; 1091 if (freq < 4000) 1092 freq = 4000; 1093 1094 /* hmmm.. */ 1095 if (!(es->fmt & ESS_FMT_16BIT) && !(es->fmt & ESS_FMT_STEREO)) 1096 freq >>= 1; 1097 1098 freq = snd_es1968_compute_rate(chip, freq); 1099 1100 /* Load the frequency, turn on 6dB */ 1101 snd_es1968_apu_set_freq(chip, es->apu[0], freq); 1102 snd_es1968_apu_set_freq(chip, es->apu[1], freq); 1103 } 1104 1105 1106 static void init_capture_apu(struct es1968 *chip, struct esschan *es, int channel, 1107 unsigned int pa, unsigned int bsize, 1108 int mode, int route) 1109 { 1110 int i, apu = es->apu[channel]; 1111 1112 es->apu_mode[channel] = mode; 1113 1114 /* set the wavecache control reg */ 1115 snd_es1968_program_wavecache(chip, es, channel, pa, 1); 1116 1117 /* Offset to PCMBAR */ 1118 pa -= chip->dma.addr; 1119 pa >>= 1; /* words */ 1120 1121 /* base offset of dma calcs when reading the pointer 1122 on this left one */ 1123 es->base[channel] = pa & 0xFFFF; 1124 pa |= 0x00400000; /* bit 22 -> System RAM */ 1125 1126 /* Begin loading the APU */ 1127 for (i = 0; i < 16; i++) 1128 apu_set_register(chip, apu, i, 0x0000); 1129 1130 /* need to enable subgroups.. and we should probably 1131 have different groups for different /dev/dsps.. */ 1132 apu_set_register(chip, apu, 2, 0x8); 1133 1134 /* Load the buffer into the wave engine */ 1135 apu_set_register(chip, apu, 4, ((pa >> 16) & 0xFF) << 8); 1136 apu_set_register(chip, apu, 5, pa & 0xFFFF); 1137 apu_set_register(chip, apu, 6, (pa + bsize) & 0xFFFF); 1138 apu_set_register(chip, apu, 7, bsize); 1139 /* clear effects/env.. */ 1140 apu_set_register(chip, apu, 8, 0x00F0); 1141 /* amplitude now? sure. why not. */ 1142 apu_set_register(chip, apu, 9, 0x0000); 1143 /* set filter tune, radius, polar pan */ 1144 apu_set_register(chip, apu, 10, 0x8F08); 1145 /* route input */ 1146 apu_set_register(chip, apu, 11, route); 1147 /* dma on, no envelopes, filter to all 1s) */ 1148 apu_set_register(chip, apu, 0, 0x400F); 1149 } 1150 1151 static void snd_es1968_capture_setup(struct es1968 *chip, struct esschan *es, 1152 struct snd_pcm_runtime *runtime) 1153 { 1154 int size; 1155 u32 freq; 1156 unsigned long flags; 1157 1158 size = es->dma_size >> es->wav_shift; 1159 1160 /* APU assignments: 1161 0 = mono/left SRC 1162 1 = right SRC 1163 2 = mono/left Input Mixer 1164 3 = right Input Mixer 1165 */ 1166 /* data seems to flow from the codec, through an apu into 1167 the 'mixbuf' bit of page, then through the SRC apu 1168 and out to the real 'buffer'. ok. sure. */ 1169 1170 /* input mixer (left/mono) */ 1171 /* parallel in crap, see maestro reg 0xC [8-11] */ 1172 init_capture_apu(chip, es, 2, 1173 es->mixbuf->buf.addr, ESM_MIXBUF_SIZE/4, /* in words */ 1174 ESM_APU_INPUTMIXER, 0x14); 1175 /* SRC (left/mono); get input from inputing apu */ 1176 init_capture_apu(chip, es, 0, es->memory->buf.addr, size, 1177 ESM_APU_SRCONVERTOR, es->apu[2]); 1178 if (es->fmt & ESS_FMT_STEREO) { 1179 /* input mixer (right) */ 1180 init_capture_apu(chip, es, 3, 1181 es->mixbuf->buf.addr + ESM_MIXBUF_SIZE/2, 1182 ESM_MIXBUF_SIZE/4, /* in words */ 1183 ESM_APU_INPUTMIXER, 0x15); 1184 /* SRC (right) */ 1185 init_capture_apu(chip, es, 1, 1186 es->memory->buf.addr + size*2, size, 1187 ESM_APU_SRCONVERTOR, es->apu[3]); 1188 } 1189 1190 freq = runtime->rate; 1191 /* Sample Rate conversion APUs don't like 0x10000 for their rate */ 1192 if (freq > 47999) 1193 freq = 47999; 1194 if (freq < 4000) 1195 freq = 4000; 1196 1197 freq = snd_es1968_compute_rate(chip, freq); 1198 1199 /* Load the frequency, turn on 6dB */ 1200 snd_es1968_apu_set_freq(chip, es->apu[0], freq); 1201 snd_es1968_apu_set_freq(chip, es->apu[1], freq); 1202 1203 /* fix mixer rate at 48khz. and its _must_ be 0x10000. */ 1204 freq = 0x10000; 1205 snd_es1968_apu_set_freq(chip, es->apu[2], freq); 1206 snd_es1968_apu_set_freq(chip, es->apu[3], freq); 1207 1208 spin_lock_irqsave(&chip->reg_lock, flags); 1209 /* clear WP interrupts */ 1210 outw(1, chip->io_port + 0x04); 1211 /* enable WP ints */ 1212 outw(inw(chip->io_port + ESM_PORT_HOST_IRQ) | ESM_HIRQ_DSIE, chip->io_port + ESM_PORT_HOST_IRQ); 1213 spin_unlock_irqrestore(&chip->reg_lock, flags); 1214 } 1215 1216 /******************* 1217 * ALSA Interface * 1218 *******************/ 1219 1220 static int snd_es1968_pcm_prepare(struct snd_pcm_substream *substream) 1221 { 1222 struct es1968 *chip = snd_pcm_substream_chip(substream); 1223 struct snd_pcm_runtime *runtime = substream->runtime; 1224 struct esschan *es = runtime->private_data; 1225 1226 es->dma_size = snd_pcm_lib_buffer_bytes(substream); 1227 es->frag_size = snd_pcm_lib_period_bytes(substream); 1228 1229 es->wav_shift = 1; /* maestro handles always 16bit */ 1230 es->fmt = 0; 1231 if (snd_pcm_format_width(runtime->format) == 16) 1232 es->fmt |= ESS_FMT_16BIT; 1233 if (runtime->channels > 1) { 1234 es->fmt |= ESS_FMT_STEREO; 1235 if (es->fmt & ESS_FMT_16BIT) /* 8bit is already word shifted */ 1236 es->wav_shift++; 1237 } 1238 es->bob_freq = snd_es1968_calc_bob_rate(chip, es, runtime); 1239 1240 switch (es->mode) { 1241 case ESM_MODE_PLAY: 1242 snd_es1968_playback_setup(chip, es, runtime); 1243 break; 1244 case ESM_MODE_CAPTURE: 1245 snd_es1968_capture_setup(chip, es, runtime); 1246 break; 1247 } 1248 1249 return 0; 1250 } 1251 1252 static int snd_es1968_pcm_trigger(struct snd_pcm_substream *substream, int cmd) 1253 { 1254 struct es1968 *chip = snd_pcm_substream_chip(substream); 1255 struct esschan *es = substream->runtime->private_data; 1256 1257 spin_lock(&chip->substream_lock); 1258 switch (cmd) { 1259 case SNDRV_PCM_TRIGGER_START: 1260 case SNDRV_PCM_TRIGGER_RESUME: 1261 if (es->running) 1262 break; 1263 snd_es1968_bob_inc(chip, es->bob_freq); 1264 es->count = 0; 1265 es->hwptr = 0; 1266 snd_es1968_pcm_start(chip, es); 1267 es->running = 1; 1268 break; 1269 case SNDRV_PCM_TRIGGER_STOP: 1270 case SNDRV_PCM_TRIGGER_SUSPEND: 1271 if (! es->running) 1272 break; 1273 snd_es1968_pcm_stop(chip, es); 1274 es->running = 0; 1275 snd_es1968_bob_dec(chip); 1276 break; 1277 } 1278 spin_unlock(&chip->substream_lock); 1279 return 0; 1280 } 1281 1282 static snd_pcm_uframes_t snd_es1968_pcm_pointer(struct snd_pcm_substream *substream) 1283 { 1284 struct es1968 *chip = snd_pcm_substream_chip(substream); 1285 struct esschan *es = substream->runtime->private_data; 1286 unsigned int ptr; 1287 1288 ptr = snd_es1968_get_dma_ptr(chip, es) << es->wav_shift; 1289 1290 return bytes_to_frames(substream->runtime, ptr % es->dma_size); 1291 } 1292 1293 static struct snd_pcm_hardware snd_es1968_playback = { 1294 .info = (SNDRV_PCM_INFO_MMAP | 1295 SNDRV_PCM_INFO_MMAP_VALID | 1296 SNDRV_PCM_INFO_INTERLEAVED | 1297 SNDRV_PCM_INFO_BLOCK_TRANSFER | 1298 /*SNDRV_PCM_INFO_PAUSE |*/ 1299 SNDRV_PCM_INFO_RESUME), 1300 .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE, 1301 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000, 1302 .rate_min = 4000, 1303 .rate_max = 48000, 1304 .channels_min = 1, 1305 .channels_max = 2, 1306 .buffer_bytes_max = 65536, 1307 .period_bytes_min = 256, 1308 .period_bytes_max = 65536, 1309 .periods_min = 1, 1310 .periods_max = 1024, 1311 .fifo_size = 0, 1312 }; 1313 1314 static struct snd_pcm_hardware snd_es1968_capture = { 1315 .info = (SNDRV_PCM_INFO_NONINTERLEAVED | 1316 SNDRV_PCM_INFO_MMAP | 1317 SNDRV_PCM_INFO_MMAP_VALID | 1318 SNDRV_PCM_INFO_BLOCK_TRANSFER | 1319 /*SNDRV_PCM_INFO_PAUSE |*/ 1320 SNDRV_PCM_INFO_RESUME), 1321 .formats = /*SNDRV_PCM_FMTBIT_U8 |*/ SNDRV_PCM_FMTBIT_S16_LE, 1322 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000, 1323 .rate_min = 4000, 1324 .rate_max = 48000, 1325 .channels_min = 1, 1326 .channels_max = 2, 1327 .buffer_bytes_max = 65536, 1328 .period_bytes_min = 256, 1329 .period_bytes_max = 65536, 1330 .periods_min = 1, 1331 .periods_max = 1024, 1332 .fifo_size = 0, 1333 }; 1334 1335 /* ************************* 1336 * DMA memory management * 1337 *************************/ 1338 1339 /* Because the Maestro can only take addresses relative to the PCM base address 1340 register :( */ 1341 1342 static int calc_available_memory_size(struct es1968 *chip) 1343 { 1344 int max_size = 0; 1345 struct esm_memory *buf; 1346 1347 mutex_lock(&chip->memory_mutex); 1348 list_for_each_entry(buf, &chip->buf_list, list) { 1349 if (buf->empty && buf->buf.bytes > max_size) 1350 max_size = buf->buf.bytes; 1351 } 1352 mutex_unlock(&chip->memory_mutex); 1353 if (max_size >= 128*1024) 1354 max_size = 127*1024; 1355 return max_size; 1356 } 1357 1358 /* allocate a new memory chunk with the specified size */ 1359 static struct esm_memory *snd_es1968_new_memory(struct es1968 *chip, int size) 1360 { 1361 struct esm_memory *buf; 1362 1363 size = ALIGN(size, ESM_MEM_ALIGN); 1364 mutex_lock(&chip->memory_mutex); 1365 list_for_each_entry(buf, &chip->buf_list, list) { 1366 if (buf->empty && buf->buf.bytes >= size) 1367 goto __found; 1368 } 1369 mutex_unlock(&chip->memory_mutex); 1370 return NULL; 1371 1372 __found: 1373 if (buf->buf.bytes > size) { 1374 struct esm_memory *chunk = kmalloc(sizeof(*chunk), GFP_KERNEL); 1375 if (chunk == NULL) { 1376 mutex_unlock(&chip->memory_mutex); 1377 return NULL; 1378 } 1379 chunk->buf = buf->buf; 1380 chunk->buf.bytes -= size; 1381 chunk->buf.area += size; 1382 chunk->buf.addr += size; 1383 chunk->empty = 1; 1384 buf->buf.bytes = size; 1385 list_add(&chunk->list, &buf->list); 1386 } 1387 buf->empty = 0; 1388 mutex_unlock(&chip->memory_mutex); 1389 return buf; 1390 } 1391 1392 /* free a memory chunk */ 1393 static void snd_es1968_free_memory(struct es1968 *chip, struct esm_memory *buf) 1394 { 1395 struct esm_memory *chunk; 1396 1397 mutex_lock(&chip->memory_mutex); 1398 buf->empty = 1; 1399 if (buf->list.prev != &chip->buf_list) { 1400 chunk = list_entry(buf->list.prev, struct esm_memory, list); 1401 if (chunk->empty) { 1402 chunk->buf.bytes += buf->buf.bytes; 1403 list_del(&buf->list); 1404 kfree(buf); 1405 buf = chunk; 1406 } 1407 } 1408 if (buf->list.next != &chip->buf_list) { 1409 chunk = list_entry(buf->list.next, struct esm_memory, list); 1410 if (chunk->empty) { 1411 buf->buf.bytes += chunk->buf.bytes; 1412 list_del(&chunk->list); 1413 kfree(chunk); 1414 } 1415 } 1416 mutex_unlock(&chip->memory_mutex); 1417 } 1418 1419 static void snd_es1968_free_dmabuf(struct es1968 *chip) 1420 { 1421 struct list_head *p; 1422 1423 if (! chip->dma.area) 1424 return; 1425 snd_dma_free_pages(&chip->dma); 1426 while ((p = chip->buf_list.next) != &chip->buf_list) { 1427 struct esm_memory *chunk = list_entry(p, struct esm_memory, list); 1428 list_del(p); 1429 kfree(chunk); 1430 } 1431 } 1432 1433 static int 1434 snd_es1968_init_dmabuf(struct es1968 *chip) 1435 { 1436 int err; 1437 struct esm_memory *chunk; 1438 1439 chip->dma.dev.type = SNDRV_DMA_TYPE_DEV; 1440 chip->dma.dev.dev = snd_dma_pci_data(chip->pci); 1441 err = snd_dma_alloc_pages_fallback(SNDRV_DMA_TYPE_DEV, 1442 snd_dma_pci_data(chip->pci), 1443 chip->total_bufsize, &chip->dma); 1444 if (err < 0 || ! chip->dma.area) { 1445 dev_err(chip->card->dev, 1446 "can't allocate dma pages for size %d\n", 1447 chip->total_bufsize); 1448 return -ENOMEM; 1449 } 1450 if ((chip->dma.addr + chip->dma.bytes - 1) & ~((1 << 28) - 1)) { 1451 snd_dma_free_pages(&chip->dma); 1452 dev_err(chip->card->dev, "DMA buffer beyond 256MB.\n"); 1453 return -ENOMEM; 1454 } 1455 1456 INIT_LIST_HEAD(&chip->buf_list); 1457 /* allocate an empty chunk */ 1458 chunk = kmalloc(sizeof(*chunk), GFP_KERNEL); 1459 if (chunk == NULL) { 1460 snd_es1968_free_dmabuf(chip); 1461 return -ENOMEM; 1462 } 1463 memset(chip->dma.area, 0, ESM_MEM_ALIGN); 1464 chunk->buf = chip->dma; 1465 chunk->buf.area += ESM_MEM_ALIGN; 1466 chunk->buf.addr += ESM_MEM_ALIGN; 1467 chunk->buf.bytes -= ESM_MEM_ALIGN; 1468 chunk->empty = 1; 1469 list_add(&chunk->list, &chip->buf_list); 1470 1471 return 0; 1472 } 1473 1474 /* setup the dma_areas */ 1475 /* buffer is extracted from the pre-allocated memory chunk */ 1476 static int snd_es1968_hw_params(struct snd_pcm_substream *substream, 1477 struct snd_pcm_hw_params *hw_params) 1478 { 1479 struct es1968 *chip = snd_pcm_substream_chip(substream); 1480 struct snd_pcm_runtime *runtime = substream->runtime; 1481 struct esschan *chan = runtime->private_data; 1482 int size = params_buffer_bytes(hw_params); 1483 1484 if (chan->memory) { 1485 if (chan->memory->buf.bytes >= size) { 1486 runtime->dma_bytes = size; 1487 return 0; 1488 } 1489 snd_es1968_free_memory(chip, chan->memory); 1490 } 1491 chan->memory = snd_es1968_new_memory(chip, size); 1492 if (chan->memory == NULL) { 1493 dev_dbg(chip->card->dev, 1494 "cannot allocate dma buffer: size = %d\n", size); 1495 return -ENOMEM; 1496 } 1497 snd_pcm_set_runtime_buffer(substream, &chan->memory->buf); 1498 return 1; /* area was changed */ 1499 } 1500 1501 /* remove dma areas if allocated */ 1502 static int snd_es1968_hw_free(struct snd_pcm_substream *substream) 1503 { 1504 struct es1968 *chip = snd_pcm_substream_chip(substream); 1505 struct snd_pcm_runtime *runtime = substream->runtime; 1506 struct esschan *chan; 1507 1508 if (runtime->private_data == NULL) 1509 return 0; 1510 chan = runtime->private_data; 1511 if (chan->memory) { 1512 snd_es1968_free_memory(chip, chan->memory); 1513 chan->memory = NULL; 1514 } 1515 return 0; 1516 } 1517 1518 1519 /* 1520 * allocate APU pair 1521 */ 1522 static int snd_es1968_alloc_apu_pair(struct es1968 *chip, int type) 1523 { 1524 int apu; 1525 1526 for (apu = 0; apu < NR_APUS; apu += 2) { 1527 if (chip->apu[apu] == ESM_APU_FREE && 1528 chip->apu[apu + 1] == ESM_APU_FREE) { 1529 chip->apu[apu] = chip->apu[apu + 1] = type; 1530 return apu; 1531 } 1532 } 1533 return -EBUSY; 1534 } 1535 1536 /* 1537 * release APU pair 1538 */ 1539 static void snd_es1968_free_apu_pair(struct es1968 *chip, int apu) 1540 { 1541 chip->apu[apu] = chip->apu[apu + 1] = ESM_APU_FREE; 1542 } 1543 1544 1545 /****************** 1546 * PCM open/close * 1547 ******************/ 1548 1549 static int snd_es1968_playback_open(struct snd_pcm_substream *substream) 1550 { 1551 struct es1968 *chip = snd_pcm_substream_chip(substream); 1552 struct snd_pcm_runtime *runtime = substream->runtime; 1553 struct esschan *es; 1554 int apu1; 1555 1556 /* search 2 APUs */ 1557 apu1 = snd_es1968_alloc_apu_pair(chip, ESM_APU_PCM_PLAY); 1558 if (apu1 < 0) 1559 return apu1; 1560 1561 es = kzalloc(sizeof(*es), GFP_KERNEL); 1562 if (!es) { 1563 snd_es1968_free_apu_pair(chip, apu1); 1564 return -ENOMEM; 1565 } 1566 1567 es->apu[0] = apu1; 1568 es->apu[1] = apu1 + 1; 1569 es->apu_mode[0] = 0; 1570 es->apu_mode[1] = 0; 1571 es->running = 0; 1572 es->substream = substream; 1573 es->mode = ESM_MODE_PLAY; 1574 1575 runtime->private_data = es; 1576 runtime->hw = snd_es1968_playback; 1577 runtime->hw.buffer_bytes_max = runtime->hw.period_bytes_max = 1578 calc_available_memory_size(chip); 1579 1580 spin_lock_irq(&chip->substream_lock); 1581 list_add(&es->list, &chip->substream_list); 1582 spin_unlock_irq(&chip->substream_lock); 1583 1584 return 0; 1585 } 1586 1587 static int snd_es1968_capture_open(struct snd_pcm_substream *substream) 1588 { 1589 struct snd_pcm_runtime *runtime = substream->runtime; 1590 struct es1968 *chip = snd_pcm_substream_chip(substream); 1591 struct esschan *es; 1592 int apu1, apu2; 1593 1594 apu1 = snd_es1968_alloc_apu_pair(chip, ESM_APU_PCM_CAPTURE); 1595 if (apu1 < 0) 1596 return apu1; 1597 apu2 = snd_es1968_alloc_apu_pair(chip, ESM_APU_PCM_RATECONV); 1598 if (apu2 < 0) { 1599 snd_es1968_free_apu_pair(chip, apu1); 1600 return apu2; 1601 } 1602 1603 es = kzalloc(sizeof(*es), GFP_KERNEL); 1604 if (!es) { 1605 snd_es1968_free_apu_pair(chip, apu1); 1606 snd_es1968_free_apu_pair(chip, apu2); 1607 return -ENOMEM; 1608 } 1609 1610 es->apu[0] = apu1; 1611 es->apu[1] = apu1 + 1; 1612 es->apu[2] = apu2; 1613 es->apu[3] = apu2 + 1; 1614 es->apu_mode[0] = 0; 1615 es->apu_mode[1] = 0; 1616 es->apu_mode[2] = 0; 1617 es->apu_mode[3] = 0; 1618 es->running = 0; 1619 es->substream = substream; 1620 es->mode = ESM_MODE_CAPTURE; 1621 1622 /* get mixbuffer */ 1623 if ((es->mixbuf = snd_es1968_new_memory(chip, ESM_MIXBUF_SIZE)) == NULL) { 1624 snd_es1968_free_apu_pair(chip, apu1); 1625 snd_es1968_free_apu_pair(chip, apu2); 1626 kfree(es); 1627 return -ENOMEM; 1628 } 1629 memset(es->mixbuf->buf.area, 0, ESM_MIXBUF_SIZE); 1630 1631 runtime->private_data = es; 1632 runtime->hw = snd_es1968_capture; 1633 runtime->hw.buffer_bytes_max = runtime->hw.period_bytes_max = 1634 calc_available_memory_size(chip) - 1024; /* keep MIXBUF size */ 1635 snd_pcm_hw_constraint_pow2(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES); 1636 1637 spin_lock_irq(&chip->substream_lock); 1638 list_add(&es->list, &chip->substream_list); 1639 spin_unlock_irq(&chip->substream_lock); 1640 1641 return 0; 1642 } 1643 1644 static int snd_es1968_playback_close(struct snd_pcm_substream *substream) 1645 { 1646 struct es1968 *chip = snd_pcm_substream_chip(substream); 1647 struct esschan *es; 1648 1649 if (substream->runtime->private_data == NULL) 1650 return 0; 1651 es = substream->runtime->private_data; 1652 spin_lock_irq(&chip->substream_lock); 1653 list_del(&es->list); 1654 spin_unlock_irq(&chip->substream_lock); 1655 snd_es1968_free_apu_pair(chip, es->apu[0]); 1656 kfree(es); 1657 1658 return 0; 1659 } 1660 1661 static int snd_es1968_capture_close(struct snd_pcm_substream *substream) 1662 { 1663 struct es1968 *chip = snd_pcm_substream_chip(substream); 1664 struct esschan *es; 1665 1666 if (substream->runtime->private_data == NULL) 1667 return 0; 1668 es = substream->runtime->private_data; 1669 spin_lock_irq(&chip->substream_lock); 1670 list_del(&es->list); 1671 spin_unlock_irq(&chip->substream_lock); 1672 snd_es1968_free_memory(chip, es->mixbuf); 1673 snd_es1968_free_apu_pair(chip, es->apu[0]); 1674 snd_es1968_free_apu_pair(chip, es->apu[2]); 1675 kfree(es); 1676 1677 return 0; 1678 } 1679 1680 static struct snd_pcm_ops snd_es1968_playback_ops = { 1681 .open = snd_es1968_playback_open, 1682 .close = snd_es1968_playback_close, 1683 .ioctl = snd_pcm_lib_ioctl, 1684 .hw_params = snd_es1968_hw_params, 1685 .hw_free = snd_es1968_hw_free, 1686 .prepare = snd_es1968_pcm_prepare, 1687 .trigger = snd_es1968_pcm_trigger, 1688 .pointer = snd_es1968_pcm_pointer, 1689 }; 1690 1691 static struct snd_pcm_ops snd_es1968_capture_ops = { 1692 .open = snd_es1968_capture_open, 1693 .close = snd_es1968_capture_close, 1694 .ioctl = snd_pcm_lib_ioctl, 1695 .hw_params = snd_es1968_hw_params, 1696 .hw_free = snd_es1968_hw_free, 1697 .prepare = snd_es1968_pcm_prepare, 1698 .trigger = snd_es1968_pcm_trigger, 1699 .pointer = snd_es1968_pcm_pointer, 1700 }; 1701 1702 1703 /* 1704 * measure clock 1705 */ 1706 #define CLOCK_MEASURE_BUFSIZE 16768 /* enough large for a single shot */ 1707 1708 static void es1968_measure_clock(struct es1968 *chip) 1709 { 1710 int i, apu; 1711 unsigned int pa, offset, t; 1712 struct esm_memory *memory; 1713 struct timeval start_time, stop_time; 1714 1715 if (chip->clock == 0) 1716 chip->clock = 48000; /* default clock value */ 1717 1718 /* search 2 APUs (although one apu is enough) */ 1719 if ((apu = snd_es1968_alloc_apu_pair(chip, ESM_APU_PCM_PLAY)) < 0) { 1720 dev_err(chip->card->dev, "Hmm, cannot find empty APU pair!?\n"); 1721 return; 1722 } 1723 if ((memory = snd_es1968_new_memory(chip, CLOCK_MEASURE_BUFSIZE)) == NULL) { 1724 dev_warn(chip->card->dev, 1725 "cannot allocate dma buffer - using default clock %d\n", 1726 chip->clock); 1727 snd_es1968_free_apu_pair(chip, apu); 1728 return; 1729 } 1730 1731 memset(memory->buf.area, 0, CLOCK_MEASURE_BUFSIZE); 1732 1733 wave_set_register(chip, apu << 3, (memory->buf.addr - 0x10) & 0xfff8); 1734 1735 pa = (unsigned int)((memory->buf.addr - chip->dma.addr) >> 1); 1736 pa |= 0x00400000; /* System RAM (Bit 22) */ 1737 1738 /* initialize apu */ 1739 for (i = 0; i < 16; i++) 1740 apu_set_register(chip, apu, i, 0x0000); 1741 1742 apu_set_register(chip, apu, 0, 0x400f); 1743 apu_set_register(chip, apu, 4, ((pa >> 16) & 0xff) << 8); 1744 apu_set_register(chip, apu, 5, pa & 0xffff); 1745 apu_set_register(chip, apu, 6, (pa + CLOCK_MEASURE_BUFSIZE/2) & 0xffff); 1746 apu_set_register(chip, apu, 7, CLOCK_MEASURE_BUFSIZE/2); 1747 apu_set_register(chip, apu, 8, 0x0000); 1748 apu_set_register(chip, apu, 9, 0xD000); 1749 apu_set_register(chip, apu, 10, 0x8F08); 1750 apu_set_register(chip, apu, 11, 0x0000); 1751 spin_lock_irq(&chip->reg_lock); 1752 outw(1, chip->io_port + 0x04); /* clear WP interrupts */ 1753 outw(inw(chip->io_port + ESM_PORT_HOST_IRQ) | ESM_HIRQ_DSIE, chip->io_port + ESM_PORT_HOST_IRQ); /* enable WP ints */ 1754 spin_unlock_irq(&chip->reg_lock); 1755 1756 snd_es1968_apu_set_freq(chip, apu, ((unsigned int)48000 << 16) / chip->clock); /* 48000 Hz */ 1757 1758 chip->in_measurement = 1; 1759 chip->measure_apu = apu; 1760 spin_lock_irq(&chip->reg_lock); 1761 snd_es1968_bob_inc(chip, ESM_BOB_FREQ); 1762 __apu_set_register(chip, apu, 5, pa & 0xffff); 1763 snd_es1968_trigger_apu(chip, apu, ESM_APU_16BITLINEAR); 1764 do_gettimeofday(&start_time); 1765 spin_unlock_irq(&chip->reg_lock); 1766 msleep(50); 1767 spin_lock_irq(&chip->reg_lock); 1768 offset = __apu_get_register(chip, apu, 5); 1769 do_gettimeofday(&stop_time); 1770 snd_es1968_trigger_apu(chip, apu, 0); /* stop */ 1771 snd_es1968_bob_dec(chip); 1772 chip->in_measurement = 0; 1773 spin_unlock_irq(&chip->reg_lock); 1774 1775 /* check the current position */ 1776 offset -= (pa & 0xffff); 1777 offset &= 0xfffe; 1778 offset += chip->measure_count * (CLOCK_MEASURE_BUFSIZE/2); 1779 1780 t = stop_time.tv_sec - start_time.tv_sec; 1781 t *= 1000000; 1782 if (stop_time.tv_usec < start_time.tv_usec) 1783 t -= start_time.tv_usec - stop_time.tv_usec; 1784 else 1785 t += stop_time.tv_usec - start_time.tv_usec; 1786 if (t == 0) { 1787 dev_err(chip->card->dev, "?? calculation error..\n"); 1788 } else { 1789 offset *= 1000; 1790 offset = (offset / t) * 1000 + ((offset % t) * 1000) / t; 1791 if (offset < 47500 || offset > 48500) { 1792 if (offset >= 40000 && offset <= 50000) 1793 chip->clock = (chip->clock * offset) / 48000; 1794 } 1795 dev_info(chip->card->dev, "clocking to %d\n", chip->clock); 1796 } 1797 snd_es1968_free_memory(chip, memory); 1798 snd_es1968_free_apu_pair(chip, apu); 1799 } 1800 1801 1802 /* 1803 */ 1804 1805 static void snd_es1968_pcm_free(struct snd_pcm *pcm) 1806 { 1807 struct es1968 *esm = pcm->private_data; 1808 snd_es1968_free_dmabuf(esm); 1809 esm->pcm = NULL; 1810 } 1811 1812 static int 1813 snd_es1968_pcm(struct es1968 *chip, int device) 1814 { 1815 struct snd_pcm *pcm; 1816 int err; 1817 1818 /* get DMA buffer */ 1819 if ((err = snd_es1968_init_dmabuf(chip)) < 0) 1820 return err; 1821 1822 /* set PCMBAR */ 1823 wave_set_register(chip, 0x01FC, chip->dma.addr >> 12); 1824 wave_set_register(chip, 0x01FD, chip->dma.addr >> 12); 1825 wave_set_register(chip, 0x01FE, chip->dma.addr >> 12); 1826 wave_set_register(chip, 0x01FF, chip->dma.addr >> 12); 1827 1828 if ((err = snd_pcm_new(chip->card, "ESS Maestro", device, 1829 chip->playback_streams, 1830 chip->capture_streams, &pcm)) < 0) 1831 return err; 1832 1833 pcm->private_data = chip; 1834 pcm->private_free = snd_es1968_pcm_free; 1835 1836 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_es1968_playback_ops); 1837 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_es1968_capture_ops); 1838 1839 pcm->info_flags = 0; 1840 1841 strcpy(pcm->name, "ESS Maestro"); 1842 1843 chip->pcm = pcm; 1844 1845 return 0; 1846 } 1847 /* 1848 * suppress jitter on some maestros when playing stereo 1849 */ 1850 static void snd_es1968_suppress_jitter(struct es1968 *chip, struct esschan *es) 1851 { 1852 unsigned int cp1; 1853 unsigned int cp2; 1854 unsigned int diff; 1855 1856 cp1 = __apu_get_register(chip, 0, 5); 1857 cp2 = __apu_get_register(chip, 1, 5); 1858 diff = (cp1 > cp2 ? cp1 - cp2 : cp2 - cp1); 1859 1860 if (diff > 1) 1861 __maestro_write(chip, IDR0_DATA_PORT, cp1); 1862 } 1863 1864 /* 1865 * update pointer 1866 */ 1867 static void snd_es1968_update_pcm(struct es1968 *chip, struct esschan *es) 1868 { 1869 unsigned int hwptr; 1870 unsigned int diff; 1871 struct snd_pcm_substream *subs = es->substream; 1872 1873 if (subs == NULL || !es->running) 1874 return; 1875 1876 hwptr = snd_es1968_get_dma_ptr(chip, es) << es->wav_shift; 1877 hwptr %= es->dma_size; 1878 1879 diff = (es->dma_size + hwptr - es->hwptr) % es->dma_size; 1880 1881 es->hwptr = hwptr; 1882 es->count += diff; 1883 1884 if (es->count > es->frag_size) { 1885 spin_unlock(&chip->substream_lock); 1886 snd_pcm_period_elapsed(subs); 1887 spin_lock(&chip->substream_lock); 1888 es->count %= es->frag_size; 1889 } 1890 } 1891 1892 /* The hardware volume works by incrementing / decrementing 2 counters 1893 (without wrap around) in response to volume button presses and then 1894 generating an interrupt. The pair of counters is stored in bits 1-3 and 5-7 1895 of a byte wide register. The meaning of bits 0 and 4 is unknown. */ 1896 static void es1968_update_hw_volume(struct work_struct *work) 1897 { 1898 struct es1968 *chip = container_of(work, struct es1968, hwvol_work); 1899 int x, val; 1900 1901 /* Figure out which volume control button was pushed, 1902 based on differences from the default register 1903 values. */ 1904 x = inb(chip->io_port + 0x1c) & 0xee; 1905 /* Reset the volume control registers. */ 1906 outb(0x88, chip->io_port + 0x1c); 1907 outb(0x88, chip->io_port + 0x1d); 1908 outb(0x88, chip->io_port + 0x1e); 1909 outb(0x88, chip->io_port + 0x1f); 1910 1911 if (chip->in_suspend) 1912 return; 1913 1914 #ifndef CONFIG_SND_ES1968_INPUT 1915 if (! chip->master_switch || ! chip->master_volume) 1916 return; 1917 1918 val = snd_ac97_read(chip->ac97, AC97_MASTER); 1919 switch (x) { 1920 case 0x88: 1921 /* mute */ 1922 val ^= 0x8000; 1923 break; 1924 case 0xaa: 1925 /* volume up */ 1926 if ((val & 0x7f) > 0) 1927 val--; 1928 if ((val & 0x7f00) > 0) 1929 val -= 0x0100; 1930 break; 1931 case 0x66: 1932 /* volume down */ 1933 if ((val & 0x7f) < 0x1f) 1934 val++; 1935 if ((val & 0x7f00) < 0x1f00) 1936 val += 0x0100; 1937 break; 1938 } 1939 if (snd_ac97_update(chip->ac97, AC97_MASTER, val)) 1940 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE, 1941 &chip->master_volume->id); 1942 #else 1943 if (!chip->input_dev) 1944 return; 1945 1946 val = 0; 1947 switch (x) { 1948 case 0x88: 1949 /* The counters have not changed, yet we've received a HV 1950 interrupt. According to tests run by various people this 1951 happens when pressing the mute button. */ 1952 val = KEY_MUTE; 1953 break; 1954 case 0xaa: 1955 /* counters increased by 1 -> volume up */ 1956 val = KEY_VOLUMEUP; 1957 break; 1958 case 0x66: 1959 /* counters decreased by 1 -> volume down */ 1960 val = KEY_VOLUMEDOWN; 1961 break; 1962 } 1963 1964 if (val) { 1965 input_report_key(chip->input_dev, val, 1); 1966 input_sync(chip->input_dev); 1967 input_report_key(chip->input_dev, val, 0); 1968 input_sync(chip->input_dev); 1969 } 1970 #endif 1971 } 1972 1973 /* 1974 * interrupt handler 1975 */ 1976 static irqreturn_t snd_es1968_interrupt(int irq, void *dev_id) 1977 { 1978 struct es1968 *chip = dev_id; 1979 u32 event; 1980 1981 if (!(event = inb(chip->io_port + 0x1A))) 1982 return IRQ_NONE; 1983 1984 outw(inw(chip->io_port + 4) & 1, chip->io_port + 4); 1985 1986 if (event & ESM_HWVOL_IRQ) 1987 schedule_work(&chip->hwvol_work); 1988 1989 /* else ack 'em all, i imagine */ 1990 outb(0xFF, chip->io_port + 0x1A); 1991 1992 if ((event & ESM_MPU401_IRQ) && chip->rmidi) { 1993 snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data); 1994 } 1995 1996 if (event & ESM_SOUND_IRQ) { 1997 struct esschan *es; 1998 spin_lock(&chip->substream_lock); 1999 list_for_each_entry(es, &chip->substream_list, list) { 2000 if (es->running) { 2001 snd_es1968_update_pcm(chip, es); 2002 if (es->fmt & ESS_FMT_STEREO) 2003 snd_es1968_suppress_jitter(chip, es); 2004 } 2005 } 2006 spin_unlock(&chip->substream_lock); 2007 if (chip->in_measurement) { 2008 unsigned int curp = __apu_get_register(chip, chip->measure_apu, 5); 2009 if (curp < chip->measure_lastpos) 2010 chip->measure_count++; 2011 chip->measure_lastpos = curp; 2012 } 2013 } 2014 2015 return IRQ_HANDLED; 2016 } 2017 2018 /* 2019 * Mixer stuff 2020 */ 2021 2022 static int 2023 snd_es1968_mixer(struct es1968 *chip) 2024 { 2025 struct snd_ac97_bus *pbus; 2026 struct snd_ac97_template ac97; 2027 #ifndef CONFIG_SND_ES1968_INPUT 2028 struct snd_ctl_elem_id elem_id; 2029 #endif 2030 int err; 2031 static struct snd_ac97_bus_ops ops = { 2032 .write = snd_es1968_ac97_write, 2033 .read = snd_es1968_ac97_read, 2034 }; 2035 2036 if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus)) < 0) 2037 return err; 2038 pbus->no_vra = 1; /* ES1968 doesn't need VRA */ 2039 2040 memset(&ac97, 0, sizeof(ac97)); 2041 ac97.private_data = chip; 2042 if ((err = snd_ac97_mixer(pbus, &ac97, &chip->ac97)) < 0) 2043 return err; 2044 2045 #ifndef CONFIG_SND_ES1968_INPUT 2046 /* attach master switch / volumes for h/w volume control */ 2047 memset(&elem_id, 0, sizeof(elem_id)); 2048 elem_id.iface = SNDRV_CTL_ELEM_IFACE_MIXER; 2049 strcpy(elem_id.name, "Master Playback Switch"); 2050 chip->master_switch = snd_ctl_find_id(chip->card, &elem_id); 2051 memset(&elem_id, 0, sizeof(elem_id)); 2052 elem_id.iface = SNDRV_CTL_ELEM_IFACE_MIXER; 2053 strcpy(elem_id.name, "Master Playback Volume"); 2054 chip->master_volume = snd_ctl_find_id(chip->card, &elem_id); 2055 #endif 2056 2057 return 0; 2058 } 2059 2060 /* 2061 * reset ac97 codec 2062 */ 2063 2064 static void snd_es1968_ac97_reset(struct es1968 *chip) 2065 { 2066 unsigned long ioaddr = chip->io_port; 2067 2068 unsigned short save_ringbus_a; 2069 unsigned short save_68; 2070 unsigned short w; 2071 unsigned int vend; 2072 2073 /* save configuration */ 2074 save_ringbus_a = inw(ioaddr + 0x36); 2075 2076 //outw(inw(ioaddr + 0x38) & 0xfffc, ioaddr + 0x38); /* clear second codec id? */ 2077 /* set command/status address i/o to 1st codec */ 2078 outw(inw(ioaddr + 0x3a) & 0xfffc, ioaddr + 0x3a); 2079 outw(inw(ioaddr + 0x3c) & 0xfffc, ioaddr + 0x3c); 2080 2081 /* disable ac link */ 2082 outw(0x0000, ioaddr + 0x36); 2083 save_68 = inw(ioaddr + 0x68); 2084 pci_read_config_word(chip->pci, 0x58, &w); /* something magical with gpio and bus arb. */ 2085 pci_read_config_dword(chip->pci, PCI_SUBSYSTEM_VENDOR_ID, &vend); 2086 if (w & 1) 2087 save_68 |= 0x10; 2088 outw(0xfffe, ioaddr + 0x64); /* unmask gpio 0 */ 2089 outw(0x0001, ioaddr + 0x68); /* gpio write */ 2090 outw(0x0000, ioaddr + 0x60); /* write 0 to gpio 0 */ 2091 udelay(20); 2092 outw(0x0001, ioaddr + 0x60); /* write 1 to gpio 1 */ 2093 msleep(20); 2094 2095 outw(save_68 | 0x1, ioaddr + 0x68); /* now restore .. */ 2096 outw((inw(ioaddr + 0x38) & 0xfffc) | 0x1, ioaddr + 0x38); 2097 outw((inw(ioaddr + 0x3a) & 0xfffc) | 0x1, ioaddr + 0x3a); 2098 outw((inw(ioaddr + 0x3c) & 0xfffc) | 0x1, ioaddr + 0x3c); 2099 2100 /* now the second codec */ 2101 /* disable ac link */ 2102 outw(0x0000, ioaddr + 0x36); 2103 outw(0xfff7, ioaddr + 0x64); /* unmask gpio 3 */ 2104 save_68 = inw(ioaddr + 0x68); 2105 outw(0x0009, ioaddr + 0x68); /* gpio write 0 & 3 ?? */ 2106 outw(0x0001, ioaddr + 0x60); /* write 1 to gpio */ 2107 udelay(20); 2108 outw(0x0009, ioaddr + 0x60); /* write 9 to gpio */ 2109 msleep(500); 2110 //outw(inw(ioaddr + 0x38) & 0xfffc, ioaddr + 0x38); 2111 outw(inw(ioaddr + 0x3a) & 0xfffc, ioaddr + 0x3a); 2112 outw(inw(ioaddr + 0x3c) & 0xfffc, ioaddr + 0x3c); 2113 2114 #if 0 /* the loop here needs to be much better if we want it.. */ 2115 dev_info(chip->card->dev, "trying software reset\n"); 2116 /* try and do a software reset */ 2117 outb(0x80 | 0x7c, ioaddr + 0x30); 2118 for (w = 0;; w++) { 2119 if ((inw(ioaddr + 0x30) & 1) == 0) { 2120 if (inb(ioaddr + 0x32) != 0) 2121 break; 2122 2123 outb(0x80 | 0x7d, ioaddr + 0x30); 2124 if (((inw(ioaddr + 0x30) & 1) == 0) 2125 && (inb(ioaddr + 0x32) != 0)) 2126 break; 2127 outb(0x80 | 0x7f, ioaddr + 0x30); 2128 if (((inw(ioaddr + 0x30) & 1) == 0) 2129 && (inb(ioaddr + 0x32) != 0)) 2130 break; 2131 } 2132 2133 if (w > 10000) { 2134 outb(inb(ioaddr + 0x37) | 0x08, ioaddr + 0x37); /* do a software reset */ 2135 msleep(500); /* oh my.. */ 2136 outb(inb(ioaddr + 0x37) & ~0x08, 2137 ioaddr + 0x37); 2138 udelay(1); 2139 outw(0x80, ioaddr + 0x30); 2140 for (w = 0; w < 10000; w++) { 2141 if ((inw(ioaddr + 0x30) & 1) == 0) 2142 break; 2143 } 2144 } 2145 } 2146 #endif 2147 if (vend == NEC_VERSA_SUBID1 || vend == NEC_VERSA_SUBID2) { 2148 /* turn on external amp? */ 2149 outw(0xf9ff, ioaddr + 0x64); 2150 outw(inw(ioaddr + 0x68) | 0x600, ioaddr + 0x68); 2151 outw(0x0209, ioaddr + 0x60); 2152 } 2153 2154 /* restore.. */ 2155 outw(save_ringbus_a, ioaddr + 0x36); 2156 2157 /* Turn on the 978 docking chip. 2158 First frob the "master output enable" bit, 2159 then set most of the playback volume control registers to max. */ 2160 outb(inb(ioaddr+0xc0)|(1<<5), ioaddr+0xc0); 2161 outb(0xff, ioaddr+0xc3); 2162 outb(0xff, ioaddr+0xc4); 2163 outb(0xff, ioaddr+0xc6); 2164 outb(0xff, ioaddr+0xc8); 2165 outb(0x3f, ioaddr+0xcf); 2166 outb(0x3f, ioaddr+0xd0); 2167 } 2168 2169 static void snd_es1968_reset(struct es1968 *chip) 2170 { 2171 /* Reset */ 2172 outw(ESM_RESET_MAESTRO | ESM_RESET_DIRECTSOUND, 2173 chip->io_port + ESM_PORT_HOST_IRQ); 2174 udelay(10); 2175 outw(0x0000, chip->io_port + ESM_PORT_HOST_IRQ); 2176 udelay(10); 2177 } 2178 2179 /* 2180 * initialize maestro chip 2181 */ 2182 static void snd_es1968_chip_init(struct es1968 *chip) 2183 { 2184 struct pci_dev *pci = chip->pci; 2185 int i; 2186 unsigned long iobase = chip->io_port; 2187 u16 w; 2188 u32 n; 2189 2190 /* We used to muck around with pci config space that 2191 * we had no business messing with. We don't know enough 2192 * about the machine to know which DMA mode is appropriate, 2193 * etc. We were guessing wrong on some machines and making 2194 * them unhappy. We now trust in the BIOS to do things right, 2195 * which almost certainly means a new host of problems will 2196 * arise with broken BIOS implementations. screw 'em. 2197 * We're already intolerant of machines that don't assign 2198 * IRQs. 2199 */ 2200 2201 /* Config Reg A */ 2202 pci_read_config_word(pci, ESM_CONFIG_A, &w); 2203 2204 w &= ~DMA_CLEAR; /* Clear DMA bits */ 2205 w &= ~(PIC_SNOOP1 | PIC_SNOOP2); /* Clear Pic Snoop Mode Bits */ 2206 w &= ~SAFEGUARD; /* Safeguard off */ 2207 w |= POST_WRITE; /* Posted write */ 2208 w |= PCI_TIMING; /* PCI timing on */ 2209 /* XXX huh? claims to be reserved.. */ 2210 w &= ~SWAP_LR; /* swap left/right 2211 seems to only have effect on SB 2212 Emulation */ 2213 w &= ~SUBTR_DECODE; /* Subtractive decode off */ 2214 2215 pci_write_config_word(pci, ESM_CONFIG_A, w); 2216 2217 /* Config Reg B */ 2218 2219 pci_read_config_word(pci, ESM_CONFIG_B, &w); 2220 2221 w &= ~(1 << 15); /* Turn off internal clock multiplier */ 2222 /* XXX how do we know which to use? */ 2223 w &= ~(1 << 14); /* External clock */ 2224 2225 w &= ~SPDIF_CONFB; /* disable S/PDIF output */ 2226 w |= HWV_CONFB; /* HWV on */ 2227 w |= DEBOUNCE; /* Debounce off: easier to push the HW buttons */ 2228 w &= ~GPIO_CONFB; /* GPIO 4:5 */ 2229 w |= CHI_CONFB; /* Disconnect from the CHI. Enabling this made a dell 7500 work. */ 2230 w &= ~IDMA_CONFB; /* IDMA off (undocumented) */ 2231 w &= ~MIDI_FIX; /* MIDI fix off (undoc) */ 2232 w &= ~(1 << 1); /* reserved, always write 0 */ 2233 w &= ~IRQ_TO_ISA; /* IRQ to ISA off (undoc) */ 2234 2235 pci_write_config_word(pci, ESM_CONFIG_B, w); 2236 2237 /* DDMA off */ 2238 2239 pci_read_config_word(pci, ESM_DDMA, &w); 2240 w &= ~(1 << 0); 2241 pci_write_config_word(pci, ESM_DDMA, w); 2242 2243 /* 2244 * Legacy mode 2245 */ 2246 2247 pci_read_config_word(pci, ESM_LEGACY_AUDIO_CONTROL, &w); 2248 2249 w |= ESS_DISABLE_AUDIO; /* Disable Legacy Audio */ 2250 w &= ~ESS_ENABLE_SERIAL_IRQ; /* Disable SIRQ */ 2251 w &= ~(0x1f); /* disable mpu irq/io, game port, fm, SB */ 2252 2253 pci_write_config_word(pci, ESM_LEGACY_AUDIO_CONTROL, w); 2254 2255 /* Set up 978 docking control chip. */ 2256 pci_read_config_word(pci, 0x58, &w); 2257 w|=1<<2; /* Enable 978. */ 2258 w|=1<<3; /* Turn on 978 hardware volume control. */ 2259 w&=~(1<<11); /* Turn on 978 mixer volume control. */ 2260 pci_write_config_word(pci, 0x58, w); 2261 2262 /* Sound Reset */ 2263 2264 snd_es1968_reset(chip); 2265 2266 /* 2267 * Ring Bus Setup 2268 */ 2269 2270 /* setup usual 0x34 stuff.. 0x36 may be chip specific */ 2271 outw(0xC090, iobase + ESM_RING_BUS_DEST); /* direct sound, stereo */ 2272 udelay(20); 2273 outw(0x3000, iobase + ESM_RING_BUS_CONTR_A); /* enable ringbus/serial */ 2274 udelay(20); 2275 2276 /* 2277 * Reset the CODEC 2278 */ 2279 2280 snd_es1968_ac97_reset(chip); 2281 2282 /* Ring Bus Control B */ 2283 2284 n = inl(iobase + ESM_RING_BUS_CONTR_B); 2285 n &= ~RINGB_EN_SPDIF; /* SPDIF off */ 2286 //w |= RINGB_EN_2CODEC; /* enable 2nd codec */ 2287 outl(n, iobase + ESM_RING_BUS_CONTR_B); 2288 2289 /* Set hardware volume control registers to midpoints. 2290 We can tell which button was pushed based on how they change. */ 2291 outb(0x88, iobase+0x1c); 2292 outb(0x88, iobase+0x1d); 2293 outb(0x88, iobase+0x1e); 2294 outb(0x88, iobase+0x1f); 2295 2296 /* it appears some maestros (dell 7500) only work if these are set, 2297 regardless of whether we use the assp or not. */ 2298 2299 outb(0, iobase + ASSP_CONTROL_B); 2300 outb(3, iobase + ASSP_CONTROL_A); /* M: Reserved bits... */ 2301 outb(0, iobase + ASSP_CONTROL_C); /* M: Disable ASSP, ASSP IRQ's and FM Port */ 2302 2303 /* 2304 * set up wavecache 2305 */ 2306 for (i = 0; i < 16; i++) { 2307 /* Write 0 into the buffer area 0x1E0->1EF */ 2308 outw(0x01E0 + i, iobase + WC_INDEX); 2309 outw(0x0000, iobase + WC_DATA); 2310 2311 /* The 1.10 test program seem to write 0 into the buffer area 2312 * 0x1D0-0x1DF too.*/ 2313 outw(0x01D0 + i, iobase + WC_INDEX); 2314 outw(0x0000, iobase + WC_DATA); 2315 } 2316 wave_set_register(chip, IDR7_WAVE_ROMRAM, 2317 (wave_get_register(chip, IDR7_WAVE_ROMRAM) & 0xFF00)); 2318 wave_set_register(chip, IDR7_WAVE_ROMRAM, 2319 wave_get_register(chip, IDR7_WAVE_ROMRAM) | 0x100); 2320 wave_set_register(chip, IDR7_WAVE_ROMRAM, 2321 wave_get_register(chip, IDR7_WAVE_ROMRAM) & ~0x200); 2322 wave_set_register(chip, IDR7_WAVE_ROMRAM, 2323 wave_get_register(chip, IDR7_WAVE_ROMRAM) | ~0x400); 2324 2325 2326 maestro_write(chip, IDR2_CRAM_DATA, 0x0000); 2327 /* Now back to the DirectSound stuff */ 2328 /* audio serial configuration.. ? */ 2329 maestro_write(chip, 0x08, 0xB004); 2330 maestro_write(chip, 0x09, 0x001B); 2331 maestro_write(chip, 0x0A, 0x8000); 2332 maestro_write(chip, 0x0B, 0x3F37); 2333 maestro_write(chip, 0x0C, 0x0098); 2334 2335 /* parallel in, has something to do with recording :) */ 2336 maestro_write(chip, 0x0C, 2337 (maestro_read(chip, 0x0C) & ~0xF000) | 0x8000); 2338 /* parallel out */ 2339 maestro_write(chip, 0x0C, 2340 (maestro_read(chip, 0x0C) & ~0x0F00) | 0x0500); 2341 2342 maestro_write(chip, 0x0D, 0x7632); 2343 2344 /* Wave cache control on - test off, sg off, 2345 enable, enable extra chans 1Mb */ 2346 2347 w = inw(iobase + WC_CONTROL); 2348 2349 w &= ~0xFA00; /* Seems to be reserved? I don't know */ 2350 w |= 0xA000; /* reserved... I don't know */ 2351 w &= ~0x0200; /* Channels 56,57,58,59 as Extra Play,Rec Channel enable 2352 Seems to crash the Computer if enabled... */ 2353 w |= 0x0100; /* Wave Cache Operation Enabled */ 2354 w |= 0x0080; /* Channels 60/61 as Placback/Record enabled */ 2355 w &= ~0x0060; /* Clear Wavtable Size */ 2356 w |= 0x0020; /* Wavetable Size : 1MB */ 2357 /* Bit 4 is reserved */ 2358 w &= ~0x000C; /* DMA Stuff? I don't understand what the datasheet means */ 2359 /* Bit 1 is reserved */ 2360 w &= ~0x0001; /* Test Mode off */ 2361 2362 outw(w, iobase + WC_CONTROL); 2363 2364 /* Now clear the APU control ram */ 2365 for (i = 0; i < NR_APUS; i++) { 2366 for (w = 0; w < NR_APU_REGS; w++) 2367 apu_set_register(chip, i, w, 0); 2368 2369 } 2370 } 2371 2372 /* Enable IRQ's */ 2373 static void snd_es1968_start_irq(struct es1968 *chip) 2374 { 2375 unsigned short w; 2376 w = ESM_HIRQ_DSIE | ESM_HIRQ_HW_VOLUME; 2377 if (chip->rmidi) 2378 w |= ESM_HIRQ_MPU401; 2379 outb(w, chip->io_port + 0x1A); 2380 outw(w, chip->io_port + ESM_PORT_HOST_IRQ); 2381 } 2382 2383 #ifdef CONFIG_PM_SLEEP 2384 /* 2385 * PM support 2386 */ 2387 static int es1968_suspend(struct device *dev) 2388 { 2389 struct pci_dev *pci = to_pci_dev(dev); 2390 struct snd_card *card = dev_get_drvdata(dev); 2391 struct es1968 *chip = card->private_data; 2392 2393 if (! chip->do_pm) 2394 return 0; 2395 2396 chip->in_suspend = 1; 2397 cancel_work_sync(&chip->hwvol_work); 2398 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); 2399 snd_pcm_suspend_all(chip->pcm); 2400 snd_ac97_suspend(chip->ac97); 2401 snd_es1968_bob_stop(chip); 2402 2403 pci_disable_device(pci); 2404 pci_save_state(pci); 2405 pci_set_power_state(pci, PCI_D3hot); 2406 return 0; 2407 } 2408 2409 static int es1968_resume(struct device *dev) 2410 { 2411 struct pci_dev *pci = to_pci_dev(dev); 2412 struct snd_card *card = dev_get_drvdata(dev); 2413 struct es1968 *chip = card->private_data; 2414 struct esschan *es; 2415 2416 if (! chip->do_pm) 2417 return 0; 2418 2419 /* restore all our config */ 2420 pci_set_power_state(pci, PCI_D0); 2421 pci_restore_state(pci); 2422 if (pci_enable_device(pci) < 0) { 2423 dev_err(dev, "pci_enable_device failed, disabling device\n"); 2424 snd_card_disconnect(card); 2425 return -EIO; 2426 } 2427 pci_set_master(pci); 2428 2429 snd_es1968_chip_init(chip); 2430 2431 /* need to restore the base pointers.. */ 2432 if (chip->dma.addr) { 2433 /* set PCMBAR */ 2434 wave_set_register(chip, 0x01FC, chip->dma.addr >> 12); 2435 } 2436 2437 snd_es1968_start_irq(chip); 2438 2439 /* restore ac97 state */ 2440 snd_ac97_resume(chip->ac97); 2441 2442 list_for_each_entry(es, &chip->substream_list, list) { 2443 switch (es->mode) { 2444 case ESM_MODE_PLAY: 2445 snd_es1968_playback_setup(chip, es, es->substream->runtime); 2446 break; 2447 case ESM_MODE_CAPTURE: 2448 snd_es1968_capture_setup(chip, es, es->substream->runtime); 2449 break; 2450 } 2451 } 2452 2453 /* start timer again */ 2454 if (chip->bobclient) 2455 snd_es1968_bob_start(chip); 2456 2457 snd_power_change_state(card, SNDRV_CTL_POWER_D0); 2458 chip->in_suspend = 0; 2459 return 0; 2460 } 2461 2462 static SIMPLE_DEV_PM_OPS(es1968_pm, es1968_suspend, es1968_resume); 2463 #define ES1968_PM_OPS &es1968_pm 2464 #else 2465 #define ES1968_PM_OPS NULL 2466 #endif /* CONFIG_PM_SLEEP */ 2467 2468 #ifdef SUPPORT_JOYSTICK 2469 #define JOYSTICK_ADDR 0x200 2470 static int snd_es1968_create_gameport(struct es1968 *chip, int dev) 2471 { 2472 struct gameport *gp; 2473 struct resource *r; 2474 u16 val; 2475 2476 if (!joystick[dev]) 2477 return -ENODEV; 2478 2479 r = request_region(JOYSTICK_ADDR, 8, "ES1968 gameport"); 2480 if (!r) 2481 return -EBUSY; 2482 2483 chip->gameport = gp = gameport_allocate_port(); 2484 if (!gp) { 2485 dev_err(chip->card->dev, 2486 "cannot allocate memory for gameport\n"); 2487 release_and_free_resource(r); 2488 return -ENOMEM; 2489 } 2490 2491 pci_read_config_word(chip->pci, ESM_LEGACY_AUDIO_CONTROL, &val); 2492 pci_write_config_word(chip->pci, ESM_LEGACY_AUDIO_CONTROL, val | 0x04); 2493 2494 gameport_set_name(gp, "ES1968 Gameport"); 2495 gameport_set_phys(gp, "pci%s/gameport0", pci_name(chip->pci)); 2496 gameport_set_dev_parent(gp, &chip->pci->dev); 2497 gp->io = JOYSTICK_ADDR; 2498 gameport_set_port_data(gp, r); 2499 2500 gameport_register_port(gp); 2501 2502 return 0; 2503 } 2504 2505 static void snd_es1968_free_gameport(struct es1968 *chip) 2506 { 2507 if (chip->gameport) { 2508 struct resource *r = gameport_get_port_data(chip->gameport); 2509 2510 gameport_unregister_port(chip->gameport); 2511 chip->gameport = NULL; 2512 2513 release_and_free_resource(r); 2514 } 2515 } 2516 #else 2517 static inline int snd_es1968_create_gameport(struct es1968 *chip, int dev) { return -ENOSYS; } 2518 static inline void snd_es1968_free_gameport(struct es1968 *chip) { } 2519 #endif 2520 2521 #ifdef CONFIG_SND_ES1968_INPUT 2522 static int snd_es1968_input_register(struct es1968 *chip) 2523 { 2524 struct input_dev *input_dev; 2525 int err; 2526 2527 input_dev = input_allocate_device(); 2528 if (!input_dev) 2529 return -ENOMEM; 2530 2531 snprintf(chip->phys, sizeof(chip->phys), "pci-%s/input0", 2532 pci_name(chip->pci)); 2533 2534 input_dev->name = chip->card->driver; 2535 input_dev->phys = chip->phys; 2536 input_dev->id.bustype = BUS_PCI; 2537 input_dev->id.vendor = chip->pci->vendor; 2538 input_dev->id.product = chip->pci->device; 2539 input_dev->dev.parent = &chip->pci->dev; 2540 2541 __set_bit(EV_KEY, input_dev->evbit); 2542 __set_bit(KEY_MUTE, input_dev->keybit); 2543 __set_bit(KEY_VOLUMEDOWN, input_dev->keybit); 2544 __set_bit(KEY_VOLUMEUP, input_dev->keybit); 2545 2546 err = input_register_device(input_dev); 2547 if (err) { 2548 input_free_device(input_dev); 2549 return err; 2550 } 2551 2552 chip->input_dev = input_dev; 2553 return 0; 2554 } 2555 #endif /* CONFIG_SND_ES1968_INPUT */ 2556 2557 #ifdef CONFIG_SND_ES1968_RADIO 2558 #define GPIO_DATA 0x60 2559 #define IO_MASK 4 /* mask register offset from GPIO_DATA 2560 bits 1=unmask write to given bit */ 2561 #define IO_DIR 8 /* direction register offset from GPIO_DATA 2562 bits 0/1=read/write direction */ 2563 2564 /* GPIO to TEA575x maps */ 2565 struct snd_es1968_tea575x_gpio { 2566 u8 data, clk, wren, most; 2567 char *name; 2568 }; 2569 2570 static struct snd_es1968_tea575x_gpio snd_es1968_tea575x_gpios[] = { 2571 { .data = 6, .clk = 7, .wren = 8, .most = 9, .name = "SF64-PCE2" }, 2572 { .data = 7, .clk = 8, .wren = 6, .most = 10, .name = "M56VAP" }, 2573 }; 2574 2575 #define get_tea575x_gpio(chip) \ 2576 (&snd_es1968_tea575x_gpios[(chip)->tea575x_tuner]) 2577 2578 2579 static void snd_es1968_tea575x_set_pins(struct snd_tea575x *tea, u8 pins) 2580 { 2581 struct es1968 *chip = tea->private_data; 2582 struct snd_es1968_tea575x_gpio gpio = *get_tea575x_gpio(chip); 2583 u16 val = 0; 2584 2585 val |= (pins & TEA575X_DATA) ? (1 << gpio.data) : 0; 2586 val |= (pins & TEA575X_CLK) ? (1 << gpio.clk) : 0; 2587 val |= (pins & TEA575X_WREN) ? (1 << gpio.wren) : 0; 2588 2589 outw(val, chip->io_port + GPIO_DATA); 2590 } 2591 2592 static u8 snd_es1968_tea575x_get_pins(struct snd_tea575x *tea) 2593 { 2594 struct es1968 *chip = tea->private_data; 2595 struct snd_es1968_tea575x_gpio gpio = *get_tea575x_gpio(chip); 2596 u16 val = inw(chip->io_port + GPIO_DATA); 2597 u8 ret = 0; 2598 2599 if (val & (1 << gpio.data)) 2600 ret |= TEA575X_DATA; 2601 if (val & (1 << gpio.most)) 2602 ret |= TEA575X_MOST; 2603 2604 return ret; 2605 } 2606 2607 static void snd_es1968_tea575x_set_direction(struct snd_tea575x *tea, bool output) 2608 { 2609 struct es1968 *chip = tea->private_data; 2610 unsigned long io = chip->io_port + GPIO_DATA; 2611 u16 odir = inw(io + IO_DIR); 2612 struct snd_es1968_tea575x_gpio gpio = *get_tea575x_gpio(chip); 2613 2614 if (output) { 2615 outw(~((1 << gpio.data) | (1 << gpio.clk) | (1 << gpio.wren)), 2616 io + IO_MASK); 2617 outw(odir | (1 << gpio.data) | (1 << gpio.clk) | (1 << gpio.wren), 2618 io + IO_DIR); 2619 } else { 2620 outw(~((1 << gpio.clk) | (1 << gpio.wren) | (1 << gpio.data) | (1 << gpio.most)), 2621 io + IO_MASK); 2622 outw((odir & ~((1 << gpio.data) | (1 << gpio.most))) 2623 | (1 << gpio.clk) | (1 << gpio.wren), io + IO_DIR); 2624 } 2625 } 2626 2627 static struct snd_tea575x_ops snd_es1968_tea_ops = { 2628 .set_pins = snd_es1968_tea575x_set_pins, 2629 .get_pins = snd_es1968_tea575x_get_pins, 2630 .set_direction = snd_es1968_tea575x_set_direction, 2631 }; 2632 #endif 2633 2634 static int snd_es1968_free(struct es1968 *chip) 2635 { 2636 cancel_work_sync(&chip->hwvol_work); 2637 #ifdef CONFIG_SND_ES1968_INPUT 2638 if (chip->input_dev) 2639 input_unregister_device(chip->input_dev); 2640 #endif 2641 2642 if (chip->io_port) { 2643 if (chip->irq >= 0) 2644 synchronize_irq(chip->irq); 2645 outw(1, chip->io_port + 0x04); /* clear WP interrupts */ 2646 outw(0, chip->io_port + ESM_PORT_HOST_IRQ); /* disable IRQ */ 2647 } 2648 2649 #ifdef CONFIG_SND_ES1968_RADIO 2650 snd_tea575x_exit(&chip->tea); 2651 v4l2_device_unregister(&chip->v4l2_dev); 2652 #endif 2653 2654 if (chip->irq >= 0) 2655 free_irq(chip->irq, chip); 2656 snd_es1968_free_gameport(chip); 2657 pci_release_regions(chip->pci); 2658 pci_disable_device(chip->pci); 2659 kfree(chip); 2660 return 0; 2661 } 2662 2663 static int snd_es1968_dev_free(struct snd_device *device) 2664 { 2665 struct es1968 *chip = device->device_data; 2666 return snd_es1968_free(chip); 2667 } 2668 2669 struct ess_device_list { 2670 unsigned short type; /* chip type */ 2671 unsigned short vendor; /* subsystem vendor id */ 2672 }; 2673 2674 static struct ess_device_list pm_whitelist[] = { 2675 { TYPE_MAESTRO2E, 0x0e11 }, /* Compaq Armada */ 2676 { TYPE_MAESTRO2E, 0x1028 }, 2677 { TYPE_MAESTRO2E, 0x103c }, 2678 { TYPE_MAESTRO2E, 0x1179 }, 2679 { TYPE_MAESTRO2E, 0x14c0 }, /* HP omnibook 4150 */ 2680 { TYPE_MAESTRO2E, 0x1558 }, 2681 { TYPE_MAESTRO2E, 0x125d }, /* a PCI card, e.g. Terratec DMX */ 2682 { TYPE_MAESTRO2, 0x125d }, /* a PCI card, e.g. SF64-PCE2 */ 2683 }; 2684 2685 static struct ess_device_list mpu_blacklist[] = { 2686 { TYPE_MAESTRO2, 0x125d }, 2687 }; 2688 2689 static int snd_es1968_create(struct snd_card *card, 2690 struct pci_dev *pci, 2691 int total_bufsize, 2692 int play_streams, 2693 int capt_streams, 2694 int chip_type, 2695 int do_pm, 2696 int radio_nr, 2697 struct es1968 **chip_ret) 2698 { 2699 static struct snd_device_ops ops = { 2700 .dev_free = snd_es1968_dev_free, 2701 }; 2702 struct es1968 *chip; 2703 int i, err; 2704 2705 *chip_ret = NULL; 2706 2707 /* enable PCI device */ 2708 if ((err = pci_enable_device(pci)) < 0) 2709 return err; 2710 /* check, if we can restrict PCI DMA transfers to 28 bits */ 2711 if (pci_set_dma_mask(pci, DMA_BIT_MASK(28)) < 0 || 2712 pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(28)) < 0) { 2713 dev_err(card->dev, 2714 "architecture does not support 28bit PCI busmaster DMA\n"); 2715 pci_disable_device(pci); 2716 return -ENXIO; 2717 } 2718 2719 chip = kzalloc(sizeof(*chip), GFP_KERNEL); 2720 if (! chip) { 2721 pci_disable_device(pci); 2722 return -ENOMEM; 2723 } 2724 2725 /* Set Vars */ 2726 chip->type = chip_type; 2727 spin_lock_init(&chip->reg_lock); 2728 spin_lock_init(&chip->substream_lock); 2729 INIT_LIST_HEAD(&chip->buf_list); 2730 INIT_LIST_HEAD(&chip->substream_list); 2731 mutex_init(&chip->memory_mutex); 2732 INIT_WORK(&chip->hwvol_work, es1968_update_hw_volume); 2733 chip->card = card; 2734 chip->pci = pci; 2735 chip->irq = -1; 2736 chip->total_bufsize = total_bufsize; /* in bytes */ 2737 chip->playback_streams = play_streams; 2738 chip->capture_streams = capt_streams; 2739 2740 if ((err = pci_request_regions(pci, "ESS Maestro")) < 0) { 2741 kfree(chip); 2742 pci_disable_device(pci); 2743 return err; 2744 } 2745 chip->io_port = pci_resource_start(pci, 0); 2746 if (request_irq(pci->irq, snd_es1968_interrupt, IRQF_SHARED, 2747 KBUILD_MODNAME, chip)) { 2748 dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq); 2749 snd_es1968_free(chip); 2750 return -EBUSY; 2751 } 2752 chip->irq = pci->irq; 2753 2754 /* Clear Maestro_map */ 2755 for (i = 0; i < 32; i++) 2756 chip->maestro_map[i] = 0; 2757 2758 /* Clear Apu Map */ 2759 for (i = 0; i < NR_APUS; i++) 2760 chip->apu[i] = ESM_APU_FREE; 2761 2762 /* just to be sure */ 2763 pci_set_master(pci); 2764 2765 if (do_pm > 1) { 2766 /* disable power-management if not on the whitelist */ 2767 unsigned short vend; 2768 pci_read_config_word(chip->pci, PCI_SUBSYSTEM_VENDOR_ID, &vend); 2769 for (i = 0; i < (int)ARRAY_SIZE(pm_whitelist); i++) { 2770 if (chip->type == pm_whitelist[i].type && 2771 vend == pm_whitelist[i].vendor) { 2772 do_pm = 1; 2773 break; 2774 } 2775 } 2776 if (do_pm > 1) { 2777 /* not matched; disabling pm */ 2778 dev_info(card->dev, "not attempting power management.\n"); 2779 do_pm = 0; 2780 } 2781 } 2782 chip->do_pm = do_pm; 2783 2784 snd_es1968_chip_init(chip); 2785 2786 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) { 2787 snd_es1968_free(chip); 2788 return err; 2789 } 2790 2791 #ifdef CONFIG_SND_ES1968_RADIO 2792 /* don't play with GPIOs on laptops */ 2793 if (chip->pci->subsystem_vendor != 0x125d) 2794 goto no_radio; 2795 err = v4l2_device_register(&pci->dev, &chip->v4l2_dev); 2796 if (err < 0) { 2797 snd_es1968_free(chip); 2798 return err; 2799 } 2800 chip->tea.v4l2_dev = &chip->v4l2_dev; 2801 chip->tea.private_data = chip; 2802 chip->tea.radio_nr = radio_nr; 2803 chip->tea.ops = &snd_es1968_tea_ops; 2804 sprintf(chip->tea.bus_info, "PCI:%s", pci_name(pci)); 2805 for (i = 0; i < ARRAY_SIZE(snd_es1968_tea575x_gpios); i++) { 2806 chip->tea575x_tuner = i; 2807 if (!snd_tea575x_init(&chip->tea, THIS_MODULE)) { 2808 dev_info(card->dev, "detected TEA575x radio type %s\n", 2809 get_tea575x_gpio(chip)->name); 2810 strlcpy(chip->tea.card, get_tea575x_gpio(chip)->name, 2811 sizeof(chip->tea.card)); 2812 break; 2813 } 2814 } 2815 no_radio: 2816 #endif 2817 2818 *chip_ret = chip; 2819 2820 return 0; 2821 } 2822 2823 2824 /* 2825 */ 2826 static int snd_es1968_probe(struct pci_dev *pci, 2827 const struct pci_device_id *pci_id) 2828 { 2829 static int dev; 2830 struct snd_card *card; 2831 struct es1968 *chip; 2832 unsigned int i; 2833 int err; 2834 2835 if (dev >= SNDRV_CARDS) 2836 return -ENODEV; 2837 if (!enable[dev]) { 2838 dev++; 2839 return -ENOENT; 2840 } 2841 2842 err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE, 2843 0, &card); 2844 if (err < 0) 2845 return err; 2846 2847 if (total_bufsize[dev] < 128) 2848 total_bufsize[dev] = 128; 2849 if (total_bufsize[dev] > 4096) 2850 total_bufsize[dev] = 4096; 2851 if ((err = snd_es1968_create(card, pci, 2852 total_bufsize[dev] * 1024, /* in bytes */ 2853 pcm_substreams_p[dev], 2854 pcm_substreams_c[dev], 2855 pci_id->driver_data, 2856 use_pm[dev], 2857 radio_nr[dev], 2858 &chip)) < 0) { 2859 snd_card_free(card); 2860 return err; 2861 } 2862 card->private_data = chip; 2863 2864 switch (chip->type) { 2865 case TYPE_MAESTRO2E: 2866 strcpy(card->driver, "ES1978"); 2867 strcpy(card->shortname, "ESS ES1978 (Maestro 2E)"); 2868 break; 2869 case TYPE_MAESTRO2: 2870 strcpy(card->driver, "ES1968"); 2871 strcpy(card->shortname, "ESS ES1968 (Maestro 2)"); 2872 break; 2873 case TYPE_MAESTRO: 2874 strcpy(card->driver, "ESM1"); 2875 strcpy(card->shortname, "ESS Maestro 1"); 2876 break; 2877 } 2878 2879 if ((err = snd_es1968_pcm(chip, 0)) < 0) { 2880 snd_card_free(card); 2881 return err; 2882 } 2883 2884 if ((err = snd_es1968_mixer(chip)) < 0) { 2885 snd_card_free(card); 2886 return err; 2887 } 2888 2889 if (enable_mpu[dev] == 2) { 2890 /* check the black list */ 2891 unsigned short vend; 2892 pci_read_config_word(chip->pci, PCI_SUBSYSTEM_VENDOR_ID, &vend); 2893 for (i = 0; i < ARRAY_SIZE(mpu_blacklist); i++) { 2894 if (chip->type == mpu_blacklist[i].type && 2895 vend == mpu_blacklist[i].vendor) { 2896 enable_mpu[dev] = 0; 2897 break; 2898 } 2899 } 2900 } 2901 if (enable_mpu[dev]) { 2902 if ((err = snd_mpu401_uart_new(card, 0, MPU401_HW_MPU401, 2903 chip->io_port + ESM_MPU401_PORT, 2904 MPU401_INFO_INTEGRATED | 2905 MPU401_INFO_IRQ_HOOK, 2906 -1, &chip->rmidi)) < 0) { 2907 dev_warn(card->dev, "skipping MPU-401 MIDI support..\n"); 2908 } 2909 } 2910 2911 snd_es1968_create_gameport(chip, dev); 2912 2913 #ifdef CONFIG_SND_ES1968_INPUT 2914 err = snd_es1968_input_register(chip); 2915 if (err) 2916 dev_warn(card->dev, 2917 "Input device registration failed with error %i", err); 2918 #endif 2919 2920 snd_es1968_start_irq(chip); 2921 2922 chip->clock = clock[dev]; 2923 if (! chip->clock) 2924 es1968_measure_clock(chip); 2925 2926 sprintf(card->longname, "%s at 0x%lx, irq %i", 2927 card->shortname, chip->io_port, chip->irq); 2928 2929 if ((err = snd_card_register(card)) < 0) { 2930 snd_card_free(card); 2931 return err; 2932 } 2933 pci_set_drvdata(pci, card); 2934 dev++; 2935 return 0; 2936 } 2937 2938 static void snd_es1968_remove(struct pci_dev *pci) 2939 { 2940 snd_card_free(pci_get_drvdata(pci)); 2941 } 2942 2943 static struct pci_driver es1968_driver = { 2944 .name = KBUILD_MODNAME, 2945 .id_table = snd_es1968_ids, 2946 .probe = snd_es1968_probe, 2947 .remove = snd_es1968_remove, 2948 .driver = { 2949 .pm = ES1968_PM_OPS, 2950 }, 2951 }; 2952 2953 module_pci_driver(es1968_driver); 2954