1/* 2 * 3 * This program is free software; you can redistribute it and/or modify 4 * it under the terms of the GNU General Public License as published by 5 * the Free Software Foundation; either version 2 of the License, or 6 * (at your option) any later version. 7 * 8 * This program is distributed in the hope that it will be useful, 9 * but WITHOUT ANY WARRANTY; without even the implied warranty of 10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 11 * GNU General Public License for more details. 12 * 13 * You should have received a copy of the GNU General Public License 14 * along with this program; if not, write to the Free Software 15 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 16 * 17 */ 18 19/* 20 * 2002-07 Benny Sjostrand benny@hostmobility.com 21 */ 22 23 24#include <linux/io.h> 25#include <linux/delay.h> 26#include <linux/pm.h> 27#include <linux/init.h> 28#include <linux/slab.h> 29#include <linux/mutex.h> 30 31#include <sound/core.h> 32#include <sound/control.h> 33#include <sound/info.h> 34#include "cs46xx.h" 35 36#include "cs46xx_lib.h" 37#include "dsp_spos.h" 38 39struct proc_scb_info { 40 struct dsp_scb_descriptor * scb_desc; 41 struct snd_cs46xx *chip; 42}; 43 44static void remove_symbol (struct snd_cs46xx * chip, struct dsp_symbol_entry * symbol) 45{ 46 struct dsp_spos_instance * ins = chip->dsp_spos_instance; 47 int symbol_index = (int)(symbol - ins->symbol_table.symbols); 48 49 if (snd_BUG_ON(ins->symbol_table.nsymbols <= 0)) 50 return; 51 if (snd_BUG_ON(symbol_index < 0 || 52 symbol_index >= ins->symbol_table.nsymbols)) 53 return; 54 55 ins->symbol_table.symbols[symbol_index].deleted = 1; 56 57 if (symbol_index < ins->symbol_table.highest_frag_index) { 58 ins->symbol_table.highest_frag_index = symbol_index; 59 } 60 61 if (symbol_index == ins->symbol_table.nsymbols - 1) 62 ins->symbol_table.nsymbols --; 63 64 if (ins->symbol_table.highest_frag_index > ins->symbol_table.nsymbols) { 65 ins->symbol_table.highest_frag_index = ins->symbol_table.nsymbols; 66 } 67 68} 69 70#ifdef CONFIG_PROC_FS 71static void cs46xx_dsp_proc_scb_info_read (struct snd_info_entry *entry, 72 struct snd_info_buffer *buffer) 73{ 74 struct proc_scb_info * scb_info = entry->private_data; 75 struct dsp_scb_descriptor * scb = scb_info->scb_desc; 76 struct dsp_spos_instance * ins; 77 struct snd_cs46xx *chip = scb_info->chip; 78 int j,col; 79 void __iomem *dst = chip->region.idx[1].remap_addr + DSP_PARAMETER_BYTE_OFFSET; 80 81 ins = chip->dsp_spos_instance; 82 83 mutex_lock(&chip->spos_mutex); 84 snd_iprintf(buffer,"%04x %s:\n",scb->address,scb->scb_name); 85 86 for (col = 0,j = 0;j < 0x10; j++,col++) { 87 if (col == 4) { 88 snd_iprintf(buffer,"\n"); 89 col = 0; 90 } 91 snd_iprintf(buffer,"%08x ",readl(dst + (scb->address + j) * sizeof(u32))); 92 } 93 94 snd_iprintf(buffer,"\n"); 95 96 if (scb->parent_scb_ptr != NULL) { 97 snd_iprintf(buffer,"parent [%s:%04x] ", 98 scb->parent_scb_ptr->scb_name, 99 scb->parent_scb_ptr->address); 100 } else snd_iprintf(buffer,"parent [none] "); 101 102 snd_iprintf(buffer,"sub_list_ptr [%s:%04x]\nnext_scb_ptr [%s:%04x] task_entry [%s:%04x]\n", 103 scb->sub_list_ptr->scb_name, 104 scb->sub_list_ptr->address, 105 scb->next_scb_ptr->scb_name, 106 scb->next_scb_ptr->address, 107 scb->task_entry->symbol_name, 108 scb->task_entry->address); 109 110 snd_iprintf(buffer,"index [%d] ref_count [%d]\n",scb->index,scb->ref_count); 111 mutex_unlock(&chip->spos_mutex); 112} 113#endif 114 115static void _dsp_unlink_scb (struct snd_cs46xx *chip, struct dsp_scb_descriptor * scb) 116{ 117 struct dsp_spos_instance * ins = chip->dsp_spos_instance; 118 119 if ( scb->parent_scb_ptr ) { 120 /* unlink parent SCB */ 121 if (snd_BUG_ON(scb->parent_scb_ptr->sub_list_ptr != scb && 122 scb->parent_scb_ptr->next_scb_ptr != scb)) 123 return; 124 125 if (scb->parent_scb_ptr->sub_list_ptr == scb) { 126 127 if (scb->next_scb_ptr == ins->the_null_scb) { 128 /* last and only node in parent sublist */ 129 scb->parent_scb_ptr->sub_list_ptr = scb->sub_list_ptr; 130 131 if (scb->sub_list_ptr != ins->the_null_scb) { 132 scb->sub_list_ptr->parent_scb_ptr = scb->parent_scb_ptr; 133 } 134 scb->sub_list_ptr = ins->the_null_scb; 135 } else { 136 /* first node in parent sublist */ 137 scb->parent_scb_ptr->sub_list_ptr = scb->next_scb_ptr; 138 139 if (scb->next_scb_ptr != ins->the_null_scb) { 140 /* update next node parent ptr. */ 141 scb->next_scb_ptr->parent_scb_ptr = scb->parent_scb_ptr; 142 } 143 scb->next_scb_ptr = ins->the_null_scb; 144 } 145 } else { 146 scb->parent_scb_ptr->next_scb_ptr = scb->next_scb_ptr; 147 148 if (scb->next_scb_ptr != ins->the_null_scb) { 149 /* update next node parent ptr. */ 150 scb->next_scb_ptr->parent_scb_ptr = scb->parent_scb_ptr; 151 } 152 scb->next_scb_ptr = ins->the_null_scb; 153 } 154 155 /* update parent first entry in DSP RAM */ 156 cs46xx_dsp_spos_update_scb(chip,scb->parent_scb_ptr); 157 158 /* then update entry in DSP RAM */ 159 cs46xx_dsp_spos_update_scb(chip,scb); 160 161 scb->parent_scb_ptr = NULL; 162 } 163} 164 165static void _dsp_clear_sample_buffer (struct snd_cs46xx *chip, u32 sample_buffer_addr, 166 int dword_count) 167{ 168 void __iomem *dst = chip->region.idx[2].remap_addr + sample_buffer_addr; 169 int i; 170 171 for (i = 0; i < dword_count ; ++i ) { 172 writel(0, dst); 173 dst += 4; 174 } 175} 176 177void cs46xx_dsp_remove_scb (struct snd_cs46xx *chip, struct dsp_scb_descriptor * scb) 178{ 179 struct dsp_spos_instance * ins = chip->dsp_spos_instance; 180 unsigned long flags; 181 182 /* check integrety */ 183 if (snd_BUG_ON(scb->index < 0 || 184 scb->index >= ins->nscb || 185 (ins->scbs + scb->index) != scb)) 186 return; 187 188#if 0 189 /* can't remove a SCB with childs before 190 removing childs first */ 191 if (snd_BUG_ON(scb->sub_list_ptr != ins->the_null_scb || 192 scb->next_scb_ptr != ins->the_null_scb)) 193 goto _end; 194#endif 195 196 spin_lock_irqsave(&chip->reg_lock, flags); 197 _dsp_unlink_scb (chip,scb); 198 spin_unlock_irqrestore(&chip->reg_lock, flags); 199 200 cs46xx_dsp_proc_free_scb_desc(scb); 201 if (snd_BUG_ON(!scb->scb_symbol)) 202 return; 203 remove_symbol (chip,scb->scb_symbol); 204 205 ins->scbs[scb->index].deleted = 1; 206#ifdef CONFIG_PM_SLEEP 207 kfree(ins->scbs[scb->index].data); 208 ins->scbs[scb->index].data = NULL; 209#endif 210 211 if (scb->index < ins->scb_highest_frag_index) 212 ins->scb_highest_frag_index = scb->index; 213 214 if (scb->index == ins->nscb - 1) { 215 ins->nscb --; 216 } 217 218 if (ins->scb_highest_frag_index > ins->nscb) { 219 ins->scb_highest_frag_index = ins->nscb; 220 } 221 222#if 0 223 /* !!!! THIS IS A PIECE OF SHIT MADE BY ME !!! */ 224 for(i = scb->index + 1;i < ins->nscb; ++i) { 225 ins->scbs[i - 1].index = i - 1; 226 } 227#endif 228} 229 230 231#ifdef CONFIG_PROC_FS 232void cs46xx_dsp_proc_free_scb_desc (struct dsp_scb_descriptor * scb) 233{ 234 if (scb->proc_info) { 235 struct proc_scb_info * scb_info = scb->proc_info->private_data; 236 struct snd_cs46xx *chip = scb_info->chip; 237 238 dev_dbg(chip->card->dev, 239 "cs46xx_dsp_proc_free_scb_desc: freeing %s\n", 240 scb->scb_name); 241 242 snd_info_free_entry(scb->proc_info); 243 scb->proc_info = NULL; 244 245 kfree (scb_info); 246 } 247} 248 249void cs46xx_dsp_proc_register_scb_desc (struct snd_cs46xx *chip, 250 struct dsp_scb_descriptor * scb) 251{ 252 struct dsp_spos_instance * ins = chip->dsp_spos_instance; 253 struct snd_info_entry * entry; 254 struct proc_scb_info * scb_info; 255 256 /* register to proc */ 257 if (ins->snd_card != NULL && ins->proc_dsp_dir != NULL && 258 scb->proc_info == NULL) { 259 260 if ((entry = snd_info_create_card_entry(ins->snd_card, scb->scb_name, 261 ins->proc_dsp_dir)) != NULL) { 262 scb_info = kmalloc(sizeof(struct proc_scb_info), GFP_KERNEL); 263 if (!scb_info) { 264 snd_info_free_entry(entry); 265 entry = NULL; 266 goto out; 267 } 268 269 scb_info->chip = chip; 270 scb_info->scb_desc = scb; 271 272 entry->content = SNDRV_INFO_CONTENT_TEXT; 273 entry->private_data = scb_info; 274 entry->mode = S_IFREG | S_IRUGO | S_IWUSR; 275 276 entry->c.text.read = cs46xx_dsp_proc_scb_info_read; 277 278 if (snd_info_register(entry) < 0) { 279 snd_info_free_entry(entry); 280 kfree (scb_info); 281 entry = NULL; 282 } 283 } 284out: 285 scb->proc_info = entry; 286 } 287} 288#endif /* CONFIG_PROC_FS */ 289 290static struct dsp_scb_descriptor * 291_dsp_create_generic_scb (struct snd_cs46xx *chip, char * name, u32 * scb_data, u32 dest, 292 struct dsp_symbol_entry * task_entry, 293 struct dsp_scb_descriptor * parent_scb, 294 int scb_child_type) 295{ 296 struct dsp_spos_instance * ins = chip->dsp_spos_instance; 297 struct dsp_scb_descriptor * scb; 298 299 unsigned long flags; 300 301 if (snd_BUG_ON(!ins->the_null_scb)) 302 return NULL; 303 304 /* fill the data that will be wroten to DSP */ 305 scb_data[SCBsubListPtr] = 306 (ins->the_null_scb->address << 0x10) | ins->the_null_scb->address; 307 308 scb_data[SCBfuncEntryPtr] &= 0xFFFF0000; 309 scb_data[SCBfuncEntryPtr] |= task_entry->address; 310 311 dev_dbg(chip->card->dev, "dsp_spos: creating SCB <%s>\n", name); 312 313 scb = cs46xx_dsp_create_scb(chip,name,scb_data,dest); 314 315 316 scb->sub_list_ptr = ins->the_null_scb; 317 scb->next_scb_ptr = ins->the_null_scb; 318 319 scb->parent_scb_ptr = parent_scb; 320 scb->task_entry = task_entry; 321 322 323 /* update parent SCB */ 324 if (scb->parent_scb_ptr) { 325#if 0 326 dev_dbg(chip->card->dev, 327 "scb->parent_scb_ptr = %s\n", 328 scb->parent_scb_ptr->scb_name); 329 dev_dbg(chip->card->dev, 330 "scb->parent_scb_ptr->next_scb_ptr = %s\n", 331 scb->parent_scb_ptr->next_scb_ptr->scb_name); 332 dev_dbg(chip->card->dev, 333 "scb->parent_scb_ptr->sub_list_ptr = %s\n", 334 scb->parent_scb_ptr->sub_list_ptr->scb_name); 335#endif 336 /* link to parent SCB */ 337 if (scb_child_type == SCB_ON_PARENT_NEXT_SCB) { 338 if (snd_BUG_ON(scb->parent_scb_ptr->next_scb_ptr != 339 ins->the_null_scb)) 340 return NULL; 341 342 scb->parent_scb_ptr->next_scb_ptr = scb; 343 344 } else if (scb_child_type == SCB_ON_PARENT_SUBLIST_SCB) { 345 if (snd_BUG_ON(scb->parent_scb_ptr->sub_list_ptr != 346 ins->the_null_scb)) 347 return NULL; 348 349 scb->parent_scb_ptr->sub_list_ptr = scb; 350 } else { 351 snd_BUG(); 352 } 353 354 spin_lock_irqsave(&chip->reg_lock, flags); 355 356 /* update entry in DSP RAM */ 357 cs46xx_dsp_spos_update_scb(chip,scb->parent_scb_ptr); 358 359 spin_unlock_irqrestore(&chip->reg_lock, flags); 360 } 361 362 363 cs46xx_dsp_proc_register_scb_desc (chip,scb); 364 365 return scb; 366} 367 368static struct dsp_scb_descriptor * 369cs46xx_dsp_create_generic_scb (struct snd_cs46xx *chip, char * name, u32 * scb_data, 370 u32 dest, char * task_entry_name, 371 struct dsp_scb_descriptor * parent_scb, 372 int scb_child_type) 373{ 374 struct dsp_symbol_entry * task_entry; 375 376 task_entry = cs46xx_dsp_lookup_symbol (chip,task_entry_name, 377 SYMBOL_CODE); 378 379 if (task_entry == NULL) { 380 dev_err(chip->card->dev, 381 "dsp_spos: symbol %s not found\n", task_entry_name); 382 return NULL; 383 } 384 385 return _dsp_create_generic_scb (chip,name,scb_data,dest,task_entry, 386 parent_scb,scb_child_type); 387} 388 389struct dsp_scb_descriptor * 390cs46xx_dsp_create_timing_master_scb (struct snd_cs46xx *chip) 391{ 392 struct dsp_scb_descriptor * scb; 393 394 struct dsp_timing_master_scb timing_master_scb = { 395 { 0, 396 0, 397 0, 398 0 399 }, 400 { 0, 401 0, 402 0, 403 0, 404 0 405 }, 406 0,0, 407 0,NULL_SCB_ADDR, 408 0,0, /* extraSampleAccum:TMreserved */ 409 0,0, /* codecFIFOptr:codecFIFOsyncd */ 410 0x0001,0x8000, /* fracSampAccumQm1:TMfrmsLeftInGroup */ 411 0x0001,0x0000, /* fracSampCorrectionQm1:TMfrmGroupLength */ 412 0x00060000 /* nSampPerFrmQ15 */ 413 }; 414 415 scb = cs46xx_dsp_create_generic_scb(chip,"TimingMasterSCBInst",(u32 *)&timing_master_scb, 416 TIMINGMASTER_SCB_ADDR, 417 "TIMINGMASTER",NULL,SCB_NO_PARENT); 418 419 return scb; 420} 421 422 423struct dsp_scb_descriptor * 424cs46xx_dsp_create_codec_out_scb(struct snd_cs46xx * chip, char * codec_name, 425 u16 channel_disp, u16 fifo_addr, u16 child_scb_addr, 426 u32 dest, struct dsp_scb_descriptor * parent_scb, 427 int scb_child_type) 428{ 429 struct dsp_scb_descriptor * scb; 430 431 struct dsp_codec_output_scb codec_out_scb = { 432 { 0, 433 0, 434 0, 435 0 436 }, 437 { 438 0, 439 0, 440 0, 441 0, 442 0 443 }, 444 0,0, 445 0,NULL_SCB_ADDR, 446 0, /* COstrmRsConfig */ 447 0, /* COstrmBufPtr */ 448 channel_disp,fifo_addr, /* leftChanBaseIOaddr:rightChanIOdisp */ 449 0x0000,0x0080, /* (!AC97!) COexpVolChangeRate:COscaleShiftCount */ 450 0,child_scb_addr /* COreserved - need child scb to work with rom code */ 451 }; 452 453 454 scb = cs46xx_dsp_create_generic_scb(chip,codec_name,(u32 *)&codec_out_scb, 455 dest,"S16_CODECOUTPUTTASK",parent_scb, 456 scb_child_type); 457 458 return scb; 459} 460 461struct dsp_scb_descriptor * 462cs46xx_dsp_create_codec_in_scb(struct snd_cs46xx * chip, char * codec_name, 463 u16 channel_disp, u16 fifo_addr, u16 sample_buffer_addr, 464 u32 dest, struct dsp_scb_descriptor * parent_scb, 465 int scb_child_type) 466{ 467 468 struct dsp_scb_descriptor * scb; 469 struct dsp_codec_input_scb codec_input_scb = { 470 { 0, 471 0, 472 0, 473 0 474 }, 475 { 476 0, 477 0, 478 0, 479 0, 480 0 481 }, 482 483#if 0 /* cs4620 */ 484 SyncIOSCB,NULL_SCB_ADDR 485#else 486 0 , 0, 487#endif 488 0,0, 489 490 RSCONFIG_SAMPLE_16STEREO + RSCONFIG_MODULO_64, /* strmRsConfig */ 491 sample_buffer_addr << 0x10, /* strmBufPtr; defined as a dword ptr, used as a byte ptr */ 492 channel_disp,fifo_addr, /* (!AC97!) leftChanBaseINaddr=AC97primary 493 link input slot 3 :rightChanINdisp=""slot 4 */ 494 0x0000,0x0000, /* (!AC97!) ????:scaleShiftCount; no shift needed 495 because AC97 is already 20 bits */ 496 0x80008000 /* ??clw cwcgame.scb has 0 */ 497 }; 498 499 scb = cs46xx_dsp_create_generic_scb(chip,codec_name,(u32 *)&codec_input_scb, 500 dest,"S16_CODECINPUTTASK",parent_scb, 501 scb_child_type); 502 return scb; 503} 504 505 506static struct dsp_scb_descriptor * 507cs46xx_dsp_create_pcm_reader_scb(struct snd_cs46xx * chip, char * scb_name, 508 u16 sample_buffer_addr, u32 dest, 509 int virtual_channel, u32 playback_hw_addr, 510 struct dsp_scb_descriptor * parent_scb, 511 int scb_child_type) 512{ 513 struct dsp_spos_instance * ins = chip->dsp_spos_instance; 514 struct dsp_scb_descriptor * scb; 515 516 struct dsp_generic_scb pcm_reader_scb = { 517 518 /* 519 Play DMA Task xfers data from host buffer to SP buffer 520 init/runtime variables: 521 PlayAC: Play Audio Data Conversion - SCB loc: 2nd dword, mask: 0x0000F000L 522 DATA_FMT_16BIT_ST_LTLEND(0x00000000L) from 16-bit stereo, little-endian 523 DATA_FMT_8_BIT_ST_SIGNED(0x00001000L) from 8-bit stereo, signed 524 DATA_FMT_16BIT_MN_LTLEND(0x00002000L) from 16-bit mono, little-endian 525 DATA_FMT_8_BIT_MN_SIGNED(0x00003000L) from 8-bit mono, signed 526 DATA_FMT_16BIT_ST_BIGEND(0x00004000L) from 16-bit stereo, big-endian 527 DATA_FMT_16BIT_MN_BIGEND(0x00006000L) from 16-bit mono, big-endian 528 DATA_FMT_8_BIT_ST_UNSIGNED(0x00009000L) from 8-bit stereo, unsigned 529 DATA_FMT_8_BIT_MN_UNSIGNED(0x0000b000L) from 8-bit mono, unsigned 530 ? Other combinations possible from: 531 DMA_RQ_C2_AUDIO_CONVERT_MASK 0x0000F000L 532 DMA_RQ_C2_AC_NONE 0x00000000L 533 DMA_RQ_C2_AC_8_TO_16_BIT 0x00001000L 534 DMA_RQ_C2_AC_MONO_TO_STEREO 0x00002000L 535 DMA_RQ_C2_AC_ENDIAN_CONVERT 0x00004000L 536 DMA_RQ_C2_AC_SIGNED_CONVERT 0x00008000L 537 538 HostBuffAddr: Host Buffer Physical Byte Address - SCB loc:3rd dword, Mask: 0xFFFFFFFFL 539 aligned to dword boundary 540 */ 541 /* Basic (non scatter/gather) DMA requestor (4 ints) */ 542 { DMA_RQ_C1_SOURCE_ON_HOST + /* source buffer is on the host */ 543 DMA_RQ_C1_SOURCE_MOD1024 + /* source buffer is 1024 dwords (4096 bytes) */ 544 DMA_RQ_C1_DEST_MOD32 + /* dest buffer(PCMreaderBuf) is 32 dwords*/ 545 DMA_RQ_C1_WRITEBACK_SRC_FLAG + /* ?? */ 546 DMA_RQ_C1_WRITEBACK_DEST_FLAG + /* ?? */ 547 15, /* DwordCount-1: picked 16 for DwordCount because Jim */ 548 /* Barnette said that is what we should use since */ 549 /* we are not running in optimized mode? */ 550 DMA_RQ_C2_AC_NONE + 551 DMA_RQ_C2_SIGNAL_SOURCE_PINGPONG + /* set play interrupt (bit0) in HISR when source */ 552 /* buffer (on host) crosses half-way point */ 553 virtual_channel, /* Play DMA channel arbitrarily set to 0 */ 554 playback_hw_addr, /* HostBuffAddr (source) */ 555 DMA_RQ_SD_SP_SAMPLE_ADDR + /* destination buffer is in SP Sample Memory */ 556 sample_buffer_addr /* SP Buffer Address (destination) */ 557 }, 558 /* Scatter/gather DMA requestor extension (5 ints) */ 559 { 560 0, 561 0, 562 0, 563 0, 564 0 565 }, 566 /* Sublist pointer & next stream control block (SCB) link. */ 567 NULL_SCB_ADDR,NULL_SCB_ADDR, 568 /* Pointer to this tasks parameter block & stream function pointer */ 569 0,NULL_SCB_ADDR, 570 /* rsConfig register for stream buffer (rsDMA reg. is loaded from basicReq.daw */ 571 /* for incoming streams, or basicReq.saw, for outgoing streams) */ 572 RSCONFIG_DMA_ENABLE + /* enable DMA */ 573 (19 << RSCONFIG_MAX_DMA_SIZE_SHIFT) + /* MAX_DMA_SIZE picked to be 19 since SPUD */ 574 /* uses it for some reason */ 575 ((dest >> 4) << RSCONFIG_STREAM_NUM_SHIFT) + /* stream number = SCBaddr/16 */ 576 RSCONFIG_SAMPLE_16STEREO + 577 RSCONFIG_MODULO_32, /* dest buffer(PCMreaderBuf) is 32 dwords (256 bytes) */ 578 /* Stream sample pointer & MAC-unit mode for this stream */ 579 (sample_buffer_addr << 0x10), 580 /* Fractional increment per output sample in the input sample buffer */ 581 0, 582 { 583 /* Standard stereo volume control 584 default muted */ 585 0xffff,0xffff, 586 0xffff,0xffff 587 } 588 }; 589 590 if (ins->null_algorithm == NULL) { 591 ins->null_algorithm = cs46xx_dsp_lookup_symbol (chip,"NULLALGORITHM", 592 SYMBOL_CODE); 593 594 if (ins->null_algorithm == NULL) { 595 dev_err(chip->card->dev, 596 "dsp_spos: symbol NULLALGORITHM not found\n"); 597 return NULL; 598 } 599 } 600 601 scb = _dsp_create_generic_scb(chip,scb_name,(u32 *)&pcm_reader_scb, 602 dest,ins->null_algorithm,parent_scb, 603 scb_child_type); 604 605 return scb; 606} 607 608#define GOF_PER_SEC 200 609 610struct dsp_scb_descriptor * 611cs46xx_dsp_create_src_task_scb(struct snd_cs46xx * chip, char * scb_name, 612 int rate, 613 u16 src_buffer_addr, 614 u16 src_delay_buffer_addr, u32 dest, 615 struct dsp_scb_descriptor * parent_scb, 616 int scb_child_type, 617 int pass_through) 618{ 619 620 struct dsp_spos_instance * ins = chip->dsp_spos_instance; 621 struct dsp_scb_descriptor * scb; 622 unsigned int tmp1, tmp2; 623 unsigned int phiIncr; 624 unsigned int correctionPerGOF, correctionPerSec; 625 626 dev_dbg(chip->card->dev, "dsp_spos: setting %s rate to %u\n", 627 scb_name, rate); 628 629 /* 630 * Compute the values used to drive the actual sample rate conversion. 631 * The following formulas are being computed, using inline assembly 632 * since we need to use 64 bit arithmetic to compute the values: 633 * 634 * phiIncr = floor((Fs,in * 2^26) / Fs,out) 635 * correctionPerGOF = floor((Fs,in * 2^26 - Fs,out * phiIncr) / 636 * GOF_PER_SEC) 637 * ulCorrectionPerSec = Fs,in * 2^26 - Fs,out * phiIncr -M 638 * GOF_PER_SEC * correctionPerGOF 639 * 640 * i.e. 641 * 642 * phiIncr:other = dividend:remainder((Fs,in * 2^26) / Fs,out) 643 * correctionPerGOF:correctionPerSec = 644 * dividend:remainder(ulOther / GOF_PER_SEC) 645 */ 646 tmp1 = rate << 16; 647 phiIncr = tmp1 / 48000; 648 tmp1 -= phiIncr * 48000; 649 tmp1 <<= 10; 650 phiIncr <<= 10; 651 tmp2 = tmp1 / 48000; 652 phiIncr += tmp2; 653 tmp1 -= tmp2 * 48000; 654 correctionPerGOF = tmp1 / GOF_PER_SEC; 655 tmp1 -= correctionPerGOF * GOF_PER_SEC; 656 correctionPerSec = tmp1; 657 658 { 659 struct dsp_src_task_scb src_task_scb = { 660 0x0028,0x00c8, 661 0x5555,0x0000, 662 0x0000,0x0000, 663 src_buffer_addr,1, 664 correctionPerGOF,correctionPerSec, 665 RSCONFIG_SAMPLE_16STEREO + RSCONFIG_MODULO_32, 666 0x0000,src_delay_buffer_addr, 667 0x0, 668 0x080,(src_delay_buffer_addr + (24 * 4)), 669 0,0, /* next_scb, sub_list_ptr */ 670 0,0, /* entry, this_spb */ 671 RSCONFIG_SAMPLE_16STEREO + RSCONFIG_MODULO_8, 672 src_buffer_addr << 0x10, 673 phiIncr, 674 { 675 0xffff - ins->dac_volume_right,0xffff - ins->dac_volume_left, 676 0xffff - ins->dac_volume_right,0xffff - ins->dac_volume_left 677 } 678 }; 679 680 if (ins->s16_up == NULL) { 681 ins->s16_up = cs46xx_dsp_lookup_symbol (chip,"S16_UPSRC", 682 SYMBOL_CODE); 683 684 if (ins->s16_up == NULL) { 685 dev_err(chip->card->dev, 686 "dsp_spos: symbol S16_UPSRC not found\n"); 687 return NULL; 688 } 689 } 690 691 /* clear buffers */ 692 _dsp_clear_sample_buffer (chip,src_buffer_addr,8); 693 _dsp_clear_sample_buffer (chip,src_delay_buffer_addr,32); 694 695 if (pass_through) { 696 /* wont work with any other rate than 697 the native DSP rate */ 698 snd_BUG_ON(rate != 48000); 699 700 scb = cs46xx_dsp_create_generic_scb(chip,scb_name,(u32 *)&src_task_scb, 701 dest,"DMAREADER",parent_scb, 702 scb_child_type); 703 } else { 704 scb = _dsp_create_generic_scb(chip,scb_name,(u32 *)&src_task_scb, 705 dest,ins->s16_up,parent_scb, 706 scb_child_type); 707 } 708 709 710 } 711 712 return scb; 713} 714 715#if 0 /* not used */ 716struct dsp_scb_descriptor * 717cs46xx_dsp_create_filter_scb(struct snd_cs46xx * chip, char * scb_name, 718 u16 buffer_addr, u32 dest, 719 struct dsp_scb_descriptor * parent_scb, 720 int scb_child_type) { 721 struct dsp_scb_descriptor * scb; 722 723 struct dsp_filter_scb filter_scb = { 724 .a0_right = 0x41a9, 725 .a0_left = 0x41a9, 726 .a1_right = 0xb8e4, 727 .a1_left = 0xb8e4, 728 .a2_right = 0x3e55, 729 .a2_left = 0x3e55, 730 731 .filter_unused3 = 0x0000, 732 .filter_unused2 = 0x0000, 733 734 .output_buf_ptr = buffer_addr, 735 .init = 0x000, 736 737 .prev_sample_output1 = 0x00000000, 738 .prev_sample_output2 = 0x00000000, 739 740 .prev_sample_input1 = 0x00000000, 741 .prev_sample_input2 = 0x00000000, 742 743 .next_scb_ptr = 0x0000, 744 .sub_list_ptr = 0x0000, 745 746 .entry_point = 0x0000, 747 .spb_ptr = 0x0000, 748 749 .b0_right = 0x0e38, 750 .b0_left = 0x0e38, 751 .b1_right = 0x1c71, 752 .b1_left = 0x1c71, 753 .b2_right = 0x0e38, 754 .b2_left = 0x0e38, 755 }; 756 757 758 scb = cs46xx_dsp_create_generic_scb(chip,scb_name,(u32 *)&filter_scb, 759 dest,"FILTERTASK",parent_scb, 760 scb_child_type); 761 762 return scb; 763} 764#endif /* not used */ 765 766struct dsp_scb_descriptor * 767cs46xx_dsp_create_mix_only_scb(struct snd_cs46xx * chip, char * scb_name, 768 u16 mix_buffer_addr, u32 dest, 769 struct dsp_scb_descriptor * parent_scb, 770 int scb_child_type) 771{ 772 struct dsp_scb_descriptor * scb; 773 774 struct dsp_mix_only_scb master_mix_scb = { 775 /* 0 */ { 0, 776 /* 1 */ 0, 777 /* 2 */ mix_buffer_addr, 778 /* 3 */ 0 779 /* */ }, 780 { 781 /* 4 */ 0, 782 /* 5 */ 0, 783 /* 6 */ 0, 784 /* 7 */ 0, 785 /* 8 */ 0x00000080 786 }, 787 /* 9 */ 0,0, 788 /* A */ 0,0, 789 /* B */ RSCONFIG_SAMPLE_16STEREO + RSCONFIG_MODULO_32, 790 /* C */ (mix_buffer_addr + (16 * 4)) << 0x10, 791 /* D */ 0, 792 { 793 /* E */ 0x8000,0x8000, 794 /* F */ 0x8000,0x8000 795 } 796 }; 797 798 799 scb = cs46xx_dsp_create_generic_scb(chip,scb_name,(u32 *)&master_mix_scb, 800 dest,"S16_MIX",parent_scb, 801 scb_child_type); 802 return scb; 803} 804 805 806struct dsp_scb_descriptor * 807cs46xx_dsp_create_mix_to_ostream_scb(struct snd_cs46xx * chip, char * scb_name, 808 u16 mix_buffer_addr, u16 writeback_spb, u32 dest, 809 struct dsp_scb_descriptor * parent_scb, 810 int scb_child_type) 811{ 812 struct dsp_scb_descriptor * scb; 813 814 struct dsp_mix2_ostream_scb mix2_ostream_scb = { 815 /* Basic (non scatter/gather) DMA requestor (4 ints) */ 816 { 817 DMA_RQ_C1_SOURCE_MOD64 + 818 DMA_RQ_C1_DEST_ON_HOST + 819 DMA_RQ_C1_DEST_MOD1024 + 820 DMA_RQ_C1_WRITEBACK_SRC_FLAG + 821 DMA_RQ_C1_WRITEBACK_DEST_FLAG + 822 15, 823 824 DMA_RQ_C2_AC_NONE + 825 DMA_RQ_C2_SIGNAL_DEST_PINGPONG + 826 827 CS46XX_DSP_CAPTURE_CHANNEL, 828 DMA_RQ_SD_SP_SAMPLE_ADDR + 829 mix_buffer_addr, 830 0x0 831 }, 832 833 { 0, 0, 0, 0, 0, }, 834 0,0, 835 0,writeback_spb, 836 837 RSCONFIG_DMA_ENABLE + 838 (19 << RSCONFIG_MAX_DMA_SIZE_SHIFT) + 839 840 ((dest >> 4) << RSCONFIG_STREAM_NUM_SHIFT) + 841 RSCONFIG_DMA_TO_HOST + 842 RSCONFIG_SAMPLE_16STEREO + 843 RSCONFIG_MODULO_64, 844 (mix_buffer_addr + (32 * 4)) << 0x10, 845 1,0, 846 0x0001,0x0080, 847 0xFFFF,0 848 }; 849 850 851 scb = cs46xx_dsp_create_generic_scb(chip,scb_name,(u32 *)&mix2_ostream_scb, 852 853 dest,"S16_MIX_TO_OSTREAM",parent_scb, 854 scb_child_type); 855 856 return scb; 857} 858 859 860struct dsp_scb_descriptor * 861cs46xx_dsp_create_vari_decimate_scb(struct snd_cs46xx * chip,char * scb_name, 862 u16 vari_buffer_addr0, 863 u16 vari_buffer_addr1, 864 u32 dest, 865 struct dsp_scb_descriptor * parent_scb, 866 int scb_child_type) 867{ 868 869 struct dsp_scb_descriptor * scb; 870 871 struct dsp_vari_decimate_scb vari_decimate_scb = { 872 0x0028,0x00c8, 873 0x5555,0x0000, 874 0x0000,0x0000, 875 vari_buffer_addr0,vari_buffer_addr1, 876 877 0x0028,0x00c8, 878 RSCONFIG_SAMPLE_16STEREO + RSCONFIG_MODULO_256, 879 880 0xFF800000, 881 0, 882 0x0080,vari_buffer_addr1 + (25 * 4), 883 884 0,0, 885 0,0, 886 887 RSCONFIG_SAMPLE_16STEREO + RSCONFIG_MODULO_8, 888 vari_buffer_addr0 << 0x10, 889 0x04000000, 890 { 891 0x8000,0x8000, 892 0xFFFF,0xFFFF 893 } 894 }; 895 896 scb = cs46xx_dsp_create_generic_scb(chip,scb_name,(u32 *)&vari_decimate_scb, 897 dest,"VARIDECIMATE",parent_scb, 898 scb_child_type); 899 900 return scb; 901} 902 903 904static struct dsp_scb_descriptor * 905cs46xx_dsp_create_pcm_serial_input_scb(struct snd_cs46xx * chip, char * scb_name, u32 dest, 906 struct dsp_scb_descriptor * input_scb, 907 struct dsp_scb_descriptor * parent_scb, 908 int scb_child_type) 909{ 910 911 struct dsp_scb_descriptor * scb; 912 913 914 struct dsp_pcm_serial_input_scb pcm_serial_input_scb = { 915 { 0, 916 0, 917 0, 918 0 919 }, 920 { 921 0, 922 0, 923 0, 924 0, 925 0 926 }, 927 928 0,0, 929 0,0, 930 931 RSCONFIG_SAMPLE_16STEREO + RSCONFIG_MODULO_16, 932 0, 933 /* 0xD */ 0,input_scb->address, 934 { 935 /* 0xE */ 0x8000,0x8000, 936 /* 0xF */ 0x8000,0x8000 937 } 938 }; 939 940 scb = cs46xx_dsp_create_generic_scb(chip,scb_name,(u32 *)&pcm_serial_input_scb, 941 dest,"PCMSERIALINPUTTASK",parent_scb, 942 scb_child_type); 943 return scb; 944} 945 946 947static struct dsp_scb_descriptor * 948cs46xx_dsp_create_asynch_fg_tx_scb(struct snd_cs46xx * chip, char * scb_name, u32 dest, 949 u16 hfg_scb_address, 950 u16 asynch_buffer_address, 951 struct dsp_scb_descriptor * parent_scb, 952 int scb_child_type) 953{ 954 955 struct dsp_scb_descriptor * scb; 956 957 struct dsp_asynch_fg_tx_scb asynch_fg_tx_scb = { 958 0xfc00,0x03ff, /* Prototype sample buffer size of 256 dwords */ 959 0x0058,0x0028, /* Min Delta 7 dwords == 28 bytes */ 960 /* : Max delta 25 dwords == 100 bytes */ 961 0,hfg_scb_address, /* Point to HFG task SCB */ 962 0,0, /* Initialize current Delta and Consumer ptr adjustment count */ 963 0, /* Initialize accumulated Phi to 0 */ 964 0,0x2aab, /* Const 1/3 */ 965 966 { 967 0, /* Define the unused elements */ 968 0, 969 0 970 }, 971 972 0,0, 973 0,dest + AFGTxAccumPhi, 974 975 RSCONFIG_SAMPLE_16STEREO + RSCONFIG_MODULO_256, /* Stereo, 256 dword */ 976 (asynch_buffer_address) << 0x10, /* This should be automagically synchronized 977 to the producer pointer */ 978 979 /* There is no correct initial value, it will depend upon the detected 980 rate etc */ 981 0x18000000, /* Phi increment for approx 32k operation */ 982 0x8000,0x8000, /* Volume controls are unused at this time */ 983 0x8000,0x8000 984 }; 985 986 scb = cs46xx_dsp_create_generic_scb(chip,scb_name,(u32 *)&asynch_fg_tx_scb, 987 dest,"ASYNCHFGTXCODE",parent_scb, 988 scb_child_type); 989 990 return scb; 991} 992 993 994struct dsp_scb_descriptor * 995cs46xx_dsp_create_asynch_fg_rx_scb(struct snd_cs46xx * chip, char * scb_name, u32 dest, 996 u16 hfg_scb_address, 997 u16 asynch_buffer_address, 998 struct dsp_scb_descriptor * parent_scb, 999 int scb_child_type) 1000{ 1001 struct dsp_spos_instance * ins = chip->dsp_spos_instance; 1002 struct dsp_scb_descriptor * scb; 1003 1004 struct dsp_asynch_fg_rx_scb asynch_fg_rx_scb = { 1005 0xfe00,0x01ff, /* Prototype sample buffer size of 128 dwords */ 1006 0x0064,0x001c, /* Min Delta 7 dwords == 28 bytes */ 1007 /* : Max delta 25 dwords == 100 bytes */ 1008 0,hfg_scb_address, /* Point to HFG task SCB */ 1009 0,0, /* Initialize current Delta and Consumer ptr adjustment count */ 1010 { 1011 0, /* Define the unused elements */ 1012 0, 1013 0, 1014 0, 1015 0 1016 }, 1017 1018 0,0, 1019 0,dest, 1020 1021 RSCONFIG_MODULO_128 | 1022 RSCONFIG_SAMPLE_16STEREO, /* Stereo, 128 dword */ 1023 ( (asynch_buffer_address + (16 * 4)) << 0x10), /* This should be automagically 1024 synchrinized to the producer pointer */ 1025 1026 /* There is no correct initial value, it will depend upon the detected 1027 rate etc */ 1028 0x18000000, 1029 1030 /* Set IEC958 input volume */ 1031 0xffff - ins->spdif_input_volume_right,0xffff - ins->spdif_input_volume_left, 1032 0xffff - ins->spdif_input_volume_right,0xffff - ins->spdif_input_volume_left, 1033 }; 1034 1035 scb = cs46xx_dsp_create_generic_scb(chip,scb_name,(u32 *)&asynch_fg_rx_scb, 1036 dest,"ASYNCHFGRXCODE",parent_scb, 1037 scb_child_type); 1038 1039 return scb; 1040} 1041 1042 1043#if 0 /* not used */ 1044struct dsp_scb_descriptor * 1045cs46xx_dsp_create_output_snoop_scb(struct snd_cs46xx * chip, char * scb_name, u32 dest, 1046 u16 snoop_buffer_address, 1047 struct dsp_scb_descriptor * snoop_scb, 1048 struct dsp_scb_descriptor * parent_scb, 1049 int scb_child_type) 1050{ 1051 1052 struct dsp_scb_descriptor * scb; 1053 1054 struct dsp_output_snoop_scb output_snoop_scb = { 1055 { 0, /* not used. Zero */ 1056 0, 1057 0, 1058 0, 1059 }, 1060 { 1061 0, /* not used. Zero */ 1062 0, 1063 0, 1064 0, 1065 0 1066 }, 1067 1068 0,0, 1069 0,0, 1070 1071 RSCONFIG_SAMPLE_16STEREO + RSCONFIG_MODULO_64, 1072 snoop_buffer_address << 0x10, 1073 0,0, 1074 0, 1075 0,snoop_scb->address 1076 }; 1077 1078 scb = cs46xx_dsp_create_generic_scb(chip,scb_name,(u32 *)&output_snoop_scb, 1079 dest,"OUTPUTSNOOP",parent_scb, 1080 scb_child_type); 1081 return scb; 1082} 1083#endif /* not used */ 1084 1085 1086struct dsp_scb_descriptor * 1087cs46xx_dsp_create_spio_write_scb(struct snd_cs46xx * chip, char * scb_name, u32 dest, 1088 struct dsp_scb_descriptor * parent_scb, 1089 int scb_child_type) 1090{ 1091 struct dsp_scb_descriptor * scb; 1092 1093 struct dsp_spio_write_scb spio_write_scb = { 1094 0,0, /* SPIOWAddress2:SPIOWAddress1; */ 1095 0, /* SPIOWData1; */ 1096 0, /* SPIOWData2; */ 1097 0,0, /* SPIOWAddress4:SPIOWAddress3; */ 1098 0, /* SPIOWData3; */ 1099 0, /* SPIOWData4; */ 1100 0,0, /* SPIOWDataPtr:Unused1; */ 1101 { 0,0 }, /* Unused2[2]; */ 1102 1103 0,0, /* SPIOWChildPtr:SPIOWSiblingPtr; */ 1104 0,0, /* SPIOWThisPtr:SPIOWEntryPoint; */ 1105 1106 { 1107 0, 1108 0, 1109 0, 1110 0, 1111 0 /* Unused3[5]; */ 1112 } 1113 }; 1114 1115 scb = cs46xx_dsp_create_generic_scb(chip,scb_name,(u32 *)&spio_write_scb, 1116 dest,"SPIOWRITE",parent_scb, 1117 scb_child_type); 1118 1119 return scb; 1120} 1121 1122struct dsp_scb_descriptor * 1123cs46xx_dsp_create_magic_snoop_scb(struct snd_cs46xx * chip, char * scb_name, u32 dest, 1124 u16 snoop_buffer_address, 1125 struct dsp_scb_descriptor * snoop_scb, 1126 struct dsp_scb_descriptor * parent_scb, 1127 int scb_child_type) 1128{ 1129 struct dsp_scb_descriptor * scb; 1130 1131 struct dsp_magic_snoop_task magic_snoop_scb = { 1132 /* 0 */ 0, /* i0 */ 1133 /* 1 */ 0, /* i1 */ 1134 /* 2 */ snoop_buffer_address << 0x10, 1135 /* 3 */ 0,snoop_scb->address, 1136 /* 4 */ 0, /* i3 */ 1137 /* 5 */ 0, /* i4 */ 1138 /* 6 */ 0, /* i5 */ 1139 /* 7 */ 0, /* i6 */ 1140 /* 8 */ 0, /* i7 */ 1141 /* 9 */ 0,0, /* next_scb, sub_list_ptr */ 1142 /* A */ 0,0, /* entry_point, this_ptr */ 1143 /* B */ RSCONFIG_SAMPLE_16STEREO + RSCONFIG_MODULO_64, 1144 /* C */ snoop_buffer_address << 0x10, 1145 /* D */ 0, 1146 /* E */ { 0x8000,0x8000, 1147 /* F */ 0xffff,0xffff 1148 } 1149 }; 1150 1151 scb = cs46xx_dsp_create_generic_scb(chip,scb_name,(u32 *)&magic_snoop_scb, 1152 dest,"MAGICSNOOPTASK",parent_scb, 1153 scb_child_type); 1154 1155 return scb; 1156} 1157 1158static struct dsp_scb_descriptor * 1159find_next_free_scb (struct snd_cs46xx * chip, struct dsp_scb_descriptor * from) 1160{ 1161 struct dsp_spos_instance * ins = chip->dsp_spos_instance; 1162 struct dsp_scb_descriptor * scb = from; 1163 1164 while (scb->next_scb_ptr != ins->the_null_scb) { 1165 if (snd_BUG_ON(!scb->next_scb_ptr)) 1166 return NULL; 1167 1168 scb = scb->next_scb_ptr; 1169 } 1170 1171 return scb; 1172} 1173 1174static u32 pcm_reader_buffer_addr[DSP_MAX_PCM_CHANNELS] = { 1175 0x0600, /* 1 */ 1176 0x1500, /* 2 */ 1177 0x1580, /* 3 */ 1178 0x1600, /* 4 */ 1179 0x1680, /* 5 */ 1180 0x1700, /* 6 */ 1181 0x1780, /* 7 */ 1182 0x1800, /* 8 */ 1183 0x1880, /* 9 */ 1184 0x1900, /* 10 */ 1185 0x1980, /* 11 */ 1186 0x1A00, /* 12 */ 1187 0x1A80, /* 13 */ 1188 0x1B00, /* 14 */ 1189 0x1B80, /* 15 */ 1190 0x1C00, /* 16 */ 1191 0x1C80, /* 17 */ 1192 0x1D00, /* 18 */ 1193 0x1D80, /* 19 */ 1194 0x1E00, /* 20 */ 1195 0x1E80, /* 21 */ 1196 0x1F00, /* 22 */ 1197 0x1F80, /* 23 */ 1198 0x2000, /* 24 */ 1199 0x2080, /* 25 */ 1200 0x2100, /* 26 */ 1201 0x2180, /* 27 */ 1202 0x2200, /* 28 */ 1203 0x2280, /* 29 */ 1204 0x2300, /* 30 */ 1205 0x2380, /* 31 */ 1206 0x2400, /* 32 */ 1207}; 1208 1209static u32 src_output_buffer_addr[DSP_MAX_SRC_NR] = { 1210 0x2B80, 1211 0x2BA0, 1212 0x2BC0, 1213 0x2BE0, 1214 0x2D00, 1215 0x2D20, 1216 0x2D40, 1217 0x2D60, 1218 0x2D80, 1219 0x2DA0, 1220 0x2DC0, 1221 0x2DE0, 1222 0x2E00, 1223 0x2E20 1224}; 1225 1226static u32 src_delay_buffer_addr[DSP_MAX_SRC_NR] = { 1227 0x2480, 1228 0x2500, 1229 0x2580, 1230 0x2600, 1231 0x2680, 1232 0x2700, 1233 0x2780, 1234 0x2800, 1235 0x2880, 1236 0x2900, 1237 0x2980, 1238 0x2A00, 1239 0x2A80, 1240 0x2B00 1241}; 1242 1243struct dsp_pcm_channel_descriptor * 1244cs46xx_dsp_create_pcm_channel (struct snd_cs46xx * chip, 1245 u32 sample_rate, void * private_data, 1246 u32 hw_dma_addr, 1247 int pcm_channel_id) 1248{ 1249 struct dsp_spos_instance * ins = chip->dsp_spos_instance; 1250 struct dsp_scb_descriptor * src_scb = NULL, * pcm_scb, * mixer_scb = NULL; 1251 struct dsp_scb_descriptor * src_parent_scb = NULL; 1252 1253 /* struct dsp_scb_descriptor * pcm_parent_scb; */ 1254 char scb_name[DSP_MAX_SCB_NAME]; 1255 int i, pcm_index = -1, insert_point, src_index = -1, pass_through = 0; 1256 unsigned long flags; 1257 1258 switch (pcm_channel_id) { 1259 case DSP_PCM_MAIN_CHANNEL: 1260 mixer_scb = ins->master_mix_scb; 1261 break; 1262 case DSP_PCM_REAR_CHANNEL: 1263 mixer_scb = ins->rear_mix_scb; 1264 break; 1265 case DSP_PCM_CENTER_LFE_CHANNEL: 1266 mixer_scb = ins->center_lfe_mix_scb; 1267 break; 1268 case DSP_PCM_S71_CHANNEL: 1269 /* TODO */ 1270 snd_BUG(); 1271 break; 1272 case DSP_IEC958_CHANNEL: 1273 if (snd_BUG_ON(!ins->asynch_tx_scb)) 1274 return NULL; 1275 mixer_scb = ins->asynch_tx_scb; 1276 1277 /* if sample rate is set to 48khz we pass 1278 the Sample Rate Converted (which could 1279 alter the raw data stream ...) */ 1280 if (sample_rate == 48000) { 1281 dev_dbg(chip->card->dev, "IEC958 pass through\n"); 1282 /* Hack to bypass creating a new SRC */ 1283 pass_through = 1; 1284 } 1285 break; 1286 default: 1287 snd_BUG(); 1288 return NULL; 1289 } 1290 /* default sample rate is 44100 */ 1291 if (!sample_rate) sample_rate = 44100; 1292 1293 /* search for a already created SRC SCB with the same sample rate */ 1294 for (i = 0; i < DSP_MAX_PCM_CHANNELS && 1295 (pcm_index == -1 || src_scb == NULL); ++i) { 1296 1297 /* virtual channel reserved 1298 for capture */ 1299 if (i == CS46XX_DSP_CAPTURE_CHANNEL) continue; 1300 1301 if (ins->pcm_channels[i].active) { 1302 if (!src_scb && 1303 ins->pcm_channels[i].sample_rate == sample_rate && 1304 ins->pcm_channels[i].mixer_scb == mixer_scb) { 1305 src_scb = ins->pcm_channels[i].src_scb; 1306 ins->pcm_channels[i].src_scb->ref_count ++; 1307 src_index = ins->pcm_channels[i].src_slot; 1308 } 1309 } else if (pcm_index == -1) { 1310 pcm_index = i; 1311 } 1312 } 1313 1314 if (pcm_index == -1) { 1315 dev_err(chip->card->dev, "dsp_spos: no free PCM channel\n"); 1316 return NULL; 1317 } 1318 1319 if (src_scb == NULL) { 1320 if (ins->nsrc_scb >= DSP_MAX_SRC_NR) { 1321 dev_err(chip->card->dev, 1322 "dsp_spos: to many SRC instances\n!"); 1323 return NULL; 1324 } 1325 1326 /* find a free slot */ 1327 for (i = 0; i < DSP_MAX_SRC_NR; ++i) { 1328 if (ins->src_scb_slots[i] == 0) { 1329 src_index = i; 1330 ins->src_scb_slots[i] = 1; 1331 break; 1332 } 1333 } 1334 if (snd_BUG_ON(src_index == -1)) 1335 return NULL; 1336 1337 /* we need to create a new SRC SCB */ 1338 if (mixer_scb->sub_list_ptr == ins->the_null_scb) { 1339 src_parent_scb = mixer_scb; 1340 insert_point = SCB_ON_PARENT_SUBLIST_SCB; 1341 } else { 1342 src_parent_scb = find_next_free_scb(chip,mixer_scb->sub_list_ptr); 1343 insert_point = SCB_ON_PARENT_NEXT_SCB; 1344 } 1345 1346 snprintf (scb_name,DSP_MAX_SCB_NAME,"SrcTask_SCB%d",src_index); 1347 1348 dev_dbg(chip->card->dev, 1349 "dsp_spos: creating SRC \"%s\"\n", scb_name); 1350 src_scb = cs46xx_dsp_create_src_task_scb(chip,scb_name, 1351 sample_rate, 1352 src_output_buffer_addr[src_index], 1353 src_delay_buffer_addr[src_index], 1354 /* 0x400 - 0x600 source SCBs */ 1355 0x400 + (src_index * 0x10) , 1356 src_parent_scb, 1357 insert_point, 1358 pass_through); 1359 1360 if (!src_scb) { 1361 dev_err(chip->card->dev, 1362 "dsp_spos: failed to create SRCtaskSCB\n"); 1363 return NULL; 1364 } 1365 1366 /* cs46xx_dsp_set_src_sample_rate(chip,src_scb,sample_rate); */ 1367 1368 ins->nsrc_scb ++; 1369 } 1370 1371 1372 snprintf (scb_name,DSP_MAX_SCB_NAME,"PCMReader_SCB%d",pcm_index); 1373 1374 dev_dbg(chip->card->dev, "dsp_spos: creating PCM \"%s\" (%d)\n", 1375 scb_name, pcm_channel_id); 1376 1377 pcm_scb = cs46xx_dsp_create_pcm_reader_scb(chip,scb_name, 1378 pcm_reader_buffer_addr[pcm_index], 1379 /* 0x200 - 400 PCMreader SCBs */ 1380 (pcm_index * 0x10) + 0x200, 1381 pcm_index, /* virtual channel 0-31 */ 1382 hw_dma_addr, /* pcm hw addr */ 1383 NULL, /* parent SCB ptr */ 1384 0 /* insert point */ 1385 ); 1386 1387 if (!pcm_scb) { 1388 dev_err(chip->card->dev, 1389 "dsp_spos: failed to create PCMreaderSCB\n"); 1390 return NULL; 1391 } 1392 1393 spin_lock_irqsave(&chip->reg_lock, flags); 1394 ins->pcm_channels[pcm_index].sample_rate = sample_rate; 1395 ins->pcm_channels[pcm_index].pcm_reader_scb = pcm_scb; 1396 ins->pcm_channels[pcm_index].src_scb = src_scb; 1397 ins->pcm_channels[pcm_index].unlinked = 1; 1398 ins->pcm_channels[pcm_index].private_data = private_data; 1399 ins->pcm_channels[pcm_index].src_slot = src_index; 1400 ins->pcm_channels[pcm_index].active = 1; 1401 ins->pcm_channels[pcm_index].pcm_slot = pcm_index; 1402 ins->pcm_channels[pcm_index].mixer_scb = mixer_scb; 1403 ins->npcm_channels ++; 1404 spin_unlock_irqrestore(&chip->reg_lock, flags); 1405 1406 return (ins->pcm_channels + pcm_index); 1407} 1408 1409int cs46xx_dsp_pcm_channel_set_period (struct snd_cs46xx * chip, 1410 struct dsp_pcm_channel_descriptor * pcm_channel, 1411 int period_size) 1412{ 1413 u32 temp = snd_cs46xx_peek (chip,pcm_channel->pcm_reader_scb->address << 2); 1414 temp &= ~DMA_RQ_C1_SOURCE_SIZE_MASK; 1415 1416 switch (period_size) { 1417 case 2048: 1418 temp |= DMA_RQ_C1_SOURCE_MOD1024; 1419 break; 1420 case 1024: 1421 temp |= DMA_RQ_C1_SOURCE_MOD512; 1422 break; 1423 case 512: 1424 temp |= DMA_RQ_C1_SOURCE_MOD256; 1425 break; 1426 case 256: 1427 temp |= DMA_RQ_C1_SOURCE_MOD128; 1428 break; 1429 case 128: 1430 temp |= DMA_RQ_C1_SOURCE_MOD64; 1431 break; 1432 case 64: 1433 temp |= DMA_RQ_C1_SOURCE_MOD32; 1434 break; 1435 case 32: 1436 temp |= DMA_RQ_C1_SOURCE_MOD16; 1437 break; 1438 default: 1439 dev_dbg(chip->card->dev, 1440 "period size (%d) not supported by HW\n", period_size); 1441 return -EINVAL; 1442 } 1443 1444 snd_cs46xx_poke (chip,pcm_channel->pcm_reader_scb->address << 2,temp); 1445 1446 return 0; 1447} 1448 1449int cs46xx_dsp_pcm_ostream_set_period (struct snd_cs46xx * chip, 1450 int period_size) 1451{ 1452 u32 temp = snd_cs46xx_peek (chip,WRITEBACK_SCB_ADDR << 2); 1453 temp &= ~DMA_RQ_C1_DEST_SIZE_MASK; 1454 1455 switch (period_size) { 1456 case 2048: 1457 temp |= DMA_RQ_C1_DEST_MOD1024; 1458 break; 1459 case 1024: 1460 temp |= DMA_RQ_C1_DEST_MOD512; 1461 break; 1462 case 512: 1463 temp |= DMA_RQ_C1_DEST_MOD256; 1464 break; 1465 case 256: 1466 temp |= DMA_RQ_C1_DEST_MOD128; 1467 break; 1468 case 128: 1469 temp |= DMA_RQ_C1_DEST_MOD64; 1470 break; 1471 case 64: 1472 temp |= DMA_RQ_C1_DEST_MOD32; 1473 break; 1474 case 32: 1475 temp |= DMA_RQ_C1_DEST_MOD16; 1476 break; 1477 default: 1478 dev_dbg(chip->card->dev, 1479 "period size (%d) not supported by HW\n", period_size); 1480 return -EINVAL; 1481 } 1482 1483 snd_cs46xx_poke (chip,WRITEBACK_SCB_ADDR << 2,temp); 1484 1485 return 0; 1486} 1487 1488void cs46xx_dsp_destroy_pcm_channel (struct snd_cs46xx * chip, 1489 struct dsp_pcm_channel_descriptor * pcm_channel) 1490{ 1491 struct dsp_spos_instance * ins = chip->dsp_spos_instance; 1492 unsigned long flags; 1493 1494 if (snd_BUG_ON(!pcm_channel->active || 1495 ins->npcm_channels <= 0 || 1496 pcm_channel->src_scb->ref_count <= 0)) 1497 return; 1498 1499 spin_lock_irqsave(&chip->reg_lock, flags); 1500 pcm_channel->unlinked = 1; 1501 pcm_channel->active = 0; 1502 pcm_channel->private_data = NULL; 1503 pcm_channel->src_scb->ref_count --; 1504 ins->npcm_channels --; 1505 spin_unlock_irqrestore(&chip->reg_lock, flags); 1506 1507 cs46xx_dsp_remove_scb(chip,pcm_channel->pcm_reader_scb); 1508 1509 if (!pcm_channel->src_scb->ref_count) { 1510 cs46xx_dsp_remove_scb(chip,pcm_channel->src_scb); 1511 1512 if (snd_BUG_ON(pcm_channel->src_slot < 0 || 1513 pcm_channel->src_slot >= DSP_MAX_SRC_NR)) 1514 return; 1515 1516 ins->src_scb_slots[pcm_channel->src_slot] = 0; 1517 ins->nsrc_scb --; 1518 } 1519} 1520 1521int cs46xx_dsp_pcm_unlink (struct snd_cs46xx * chip, 1522 struct dsp_pcm_channel_descriptor * pcm_channel) 1523{ 1524 unsigned long flags; 1525 1526 if (snd_BUG_ON(!pcm_channel->active || 1527 chip->dsp_spos_instance->npcm_channels <= 0)) 1528 return -EIO; 1529 1530 spin_lock_irqsave(&chip->reg_lock, flags); 1531 if (pcm_channel->unlinked) { 1532 spin_unlock_irqrestore(&chip->reg_lock, flags); 1533 return -EIO; 1534 } 1535 1536 pcm_channel->unlinked = 1; 1537 1538 _dsp_unlink_scb (chip,pcm_channel->pcm_reader_scb); 1539 spin_unlock_irqrestore(&chip->reg_lock, flags); 1540 1541 return 0; 1542} 1543 1544int cs46xx_dsp_pcm_link (struct snd_cs46xx * chip, 1545 struct dsp_pcm_channel_descriptor * pcm_channel) 1546{ 1547 struct dsp_spos_instance * ins = chip->dsp_spos_instance; 1548 struct dsp_scb_descriptor * parent_scb; 1549 struct dsp_scb_descriptor * src_scb = pcm_channel->src_scb; 1550 unsigned long flags; 1551 1552 spin_lock_irqsave(&chip->reg_lock, flags); 1553 1554 if (pcm_channel->unlinked == 0) { 1555 spin_unlock_irqrestore(&chip->reg_lock, flags); 1556 return -EIO; 1557 } 1558 1559 parent_scb = src_scb; 1560 1561 if (src_scb->sub_list_ptr != ins->the_null_scb) { 1562 src_scb->sub_list_ptr->parent_scb_ptr = pcm_channel->pcm_reader_scb; 1563 pcm_channel->pcm_reader_scb->next_scb_ptr = src_scb->sub_list_ptr; 1564 } 1565 1566 src_scb->sub_list_ptr = pcm_channel->pcm_reader_scb; 1567 1568 snd_BUG_ON(pcm_channel->pcm_reader_scb->parent_scb_ptr); 1569 pcm_channel->pcm_reader_scb->parent_scb_ptr = parent_scb; 1570 1571 /* update SCB entry in DSP RAM */ 1572 cs46xx_dsp_spos_update_scb(chip,pcm_channel->pcm_reader_scb); 1573 1574 /* update parent SCB entry */ 1575 cs46xx_dsp_spos_update_scb(chip,parent_scb); 1576 1577 pcm_channel->unlinked = 0; 1578 spin_unlock_irqrestore(&chip->reg_lock, flags); 1579 return 0; 1580} 1581 1582struct dsp_scb_descriptor * 1583cs46xx_add_record_source (struct snd_cs46xx *chip, struct dsp_scb_descriptor * source, 1584 u16 addr, char * scb_name) 1585{ 1586 struct dsp_spos_instance * ins = chip->dsp_spos_instance; 1587 struct dsp_scb_descriptor * parent; 1588 struct dsp_scb_descriptor * pcm_input; 1589 int insert_point; 1590 1591 if (snd_BUG_ON(!ins->record_mixer_scb)) 1592 return NULL; 1593 1594 if (ins->record_mixer_scb->sub_list_ptr != ins->the_null_scb) { 1595 parent = find_next_free_scb (chip,ins->record_mixer_scb->sub_list_ptr); 1596 insert_point = SCB_ON_PARENT_NEXT_SCB; 1597 } else { 1598 parent = ins->record_mixer_scb; 1599 insert_point = SCB_ON_PARENT_SUBLIST_SCB; 1600 } 1601 1602 pcm_input = cs46xx_dsp_create_pcm_serial_input_scb(chip,scb_name,addr, 1603 source, parent, 1604 insert_point); 1605 1606 return pcm_input; 1607} 1608 1609int cs46xx_src_unlink(struct snd_cs46xx *chip, struct dsp_scb_descriptor * src) 1610{ 1611 unsigned long flags; 1612 1613 if (snd_BUG_ON(!src->parent_scb_ptr)) 1614 return -EINVAL; 1615 1616 /* mute SCB */ 1617 cs46xx_dsp_scb_set_volume (chip,src,0,0); 1618 1619 spin_lock_irqsave(&chip->reg_lock, flags); 1620 _dsp_unlink_scb (chip,src); 1621 spin_unlock_irqrestore(&chip->reg_lock, flags); 1622 1623 return 0; 1624} 1625 1626int cs46xx_src_link(struct snd_cs46xx *chip, struct dsp_scb_descriptor * src) 1627{ 1628 struct dsp_spos_instance * ins = chip->dsp_spos_instance; 1629 struct dsp_scb_descriptor * parent_scb; 1630 1631 if (snd_BUG_ON(src->parent_scb_ptr)) 1632 return -EINVAL; 1633 if (snd_BUG_ON(!ins->master_mix_scb)) 1634 return -EINVAL; 1635 1636 if (ins->master_mix_scb->sub_list_ptr != ins->the_null_scb) { 1637 parent_scb = find_next_free_scb (chip,ins->master_mix_scb->sub_list_ptr); 1638 parent_scb->next_scb_ptr = src; 1639 } else { 1640 parent_scb = ins->master_mix_scb; 1641 parent_scb->sub_list_ptr = src; 1642 } 1643 1644 src->parent_scb_ptr = parent_scb; 1645 1646 /* update entry in DSP RAM */ 1647 cs46xx_dsp_spos_update_scb(chip,parent_scb); 1648 1649 return 0; 1650} 1651 1652int cs46xx_dsp_enable_spdif_out (struct snd_cs46xx *chip) 1653{ 1654 struct dsp_spos_instance * ins = chip->dsp_spos_instance; 1655 1656 if ( ! (ins->spdif_status_out & DSP_SPDIF_STATUS_HW_ENABLED) ) { 1657 cs46xx_dsp_enable_spdif_hw (chip); 1658 } 1659 1660 /* dont touch anything if SPDIF is open */ 1661 if ( ins->spdif_status_out & DSP_SPDIF_STATUS_PLAYBACK_OPEN) { 1662 /* when cs46xx_iec958_post_close(...) is called it 1663 will call this function if necessary depending on 1664 this bit */ 1665 ins->spdif_status_out |= DSP_SPDIF_STATUS_OUTPUT_ENABLED; 1666 1667 return -EBUSY; 1668 } 1669 1670 if (snd_BUG_ON(ins->asynch_tx_scb)) 1671 return -EINVAL; 1672 if (snd_BUG_ON(ins->master_mix_scb->next_scb_ptr != 1673 ins->the_null_scb)) 1674 return -EINVAL; 1675 1676 /* reset output snooper sample buffer pointer */ 1677 snd_cs46xx_poke (chip, (ins->ref_snoop_scb->address + 2) << 2, 1678 (OUTPUT_SNOOP_BUFFER + 0x10) << 0x10 ); 1679 1680 /* The asynch. transfer task */ 1681 ins->asynch_tx_scb = cs46xx_dsp_create_asynch_fg_tx_scb(chip,"AsynchFGTxSCB",ASYNCTX_SCB_ADDR, 1682 SPDIFO_SCB_INST, 1683 SPDIFO_IP_OUTPUT_BUFFER1, 1684 ins->master_mix_scb, 1685 SCB_ON_PARENT_NEXT_SCB); 1686 if (!ins->asynch_tx_scb) return -ENOMEM; 1687 1688 ins->spdif_pcm_input_scb = cs46xx_dsp_create_pcm_serial_input_scb(chip,"PCMSerialInput_II", 1689 PCMSERIALINII_SCB_ADDR, 1690 ins->ref_snoop_scb, 1691 ins->asynch_tx_scb, 1692 SCB_ON_PARENT_SUBLIST_SCB); 1693 1694 1695 if (!ins->spdif_pcm_input_scb) return -ENOMEM; 1696 1697 /* monitor state */ 1698 ins->spdif_status_out |= DSP_SPDIF_STATUS_OUTPUT_ENABLED; 1699 1700 return 0; 1701} 1702 1703int cs46xx_dsp_disable_spdif_out (struct snd_cs46xx *chip) 1704{ 1705 struct dsp_spos_instance * ins = chip->dsp_spos_instance; 1706 1707 /* dont touch anything if SPDIF is open */ 1708 if ( ins->spdif_status_out & DSP_SPDIF_STATUS_PLAYBACK_OPEN) { 1709 ins->spdif_status_out &= ~DSP_SPDIF_STATUS_OUTPUT_ENABLED; 1710 return -EBUSY; 1711 } 1712 1713 /* check integrety */ 1714 if (snd_BUG_ON(!ins->asynch_tx_scb)) 1715 return -EINVAL; 1716 if (snd_BUG_ON(!ins->spdif_pcm_input_scb)) 1717 return -EINVAL; 1718 if (snd_BUG_ON(ins->master_mix_scb->next_scb_ptr != ins->asynch_tx_scb)) 1719 return -EINVAL; 1720 if (snd_BUG_ON(ins->asynch_tx_scb->parent_scb_ptr != 1721 ins->master_mix_scb)) 1722 return -EINVAL; 1723 1724 cs46xx_dsp_remove_scb (chip,ins->spdif_pcm_input_scb); 1725 cs46xx_dsp_remove_scb (chip,ins->asynch_tx_scb); 1726 1727 ins->spdif_pcm_input_scb = NULL; 1728 ins->asynch_tx_scb = NULL; 1729 1730 /* clear buffer to prevent any undesired noise */ 1731 _dsp_clear_sample_buffer(chip,SPDIFO_IP_OUTPUT_BUFFER1,256); 1732 1733 /* monitor state */ 1734 ins->spdif_status_out &= ~DSP_SPDIF_STATUS_OUTPUT_ENABLED; 1735 1736 1737 return 0; 1738} 1739 1740int cs46xx_iec958_pre_open (struct snd_cs46xx *chip) 1741{ 1742 struct dsp_spos_instance * ins = chip->dsp_spos_instance; 1743 1744 if ( ins->spdif_status_out & DSP_SPDIF_STATUS_OUTPUT_ENABLED ) { 1745 /* remove AsynchFGTxSCB and and PCMSerialInput_II */ 1746 cs46xx_dsp_disable_spdif_out (chip); 1747 1748 /* save state */ 1749 ins->spdif_status_out |= DSP_SPDIF_STATUS_OUTPUT_ENABLED; 1750 } 1751 1752 /* if not enabled already */ 1753 if ( !(ins->spdif_status_out & DSP_SPDIF_STATUS_HW_ENABLED) ) { 1754 cs46xx_dsp_enable_spdif_hw (chip); 1755 } 1756 1757 /* Create the asynch. transfer task for playback */ 1758 ins->asynch_tx_scb = cs46xx_dsp_create_asynch_fg_tx_scb(chip,"AsynchFGTxSCB",ASYNCTX_SCB_ADDR, 1759 SPDIFO_SCB_INST, 1760 SPDIFO_IP_OUTPUT_BUFFER1, 1761 ins->master_mix_scb, 1762 SCB_ON_PARENT_NEXT_SCB); 1763 1764 1765 /* set spdif channel status value for streaming */ 1766 cs46xx_poke_via_dsp (chip,SP_SPDOUT_CSUV, ins->spdif_csuv_stream); 1767 1768 ins->spdif_status_out |= DSP_SPDIF_STATUS_PLAYBACK_OPEN; 1769 1770 return 0; 1771} 1772 1773int cs46xx_iec958_post_close (struct snd_cs46xx *chip) 1774{ 1775 struct dsp_spos_instance * ins = chip->dsp_spos_instance; 1776 1777 if (snd_BUG_ON(!ins->asynch_tx_scb)) 1778 return -EINVAL; 1779 1780 ins->spdif_status_out &= ~DSP_SPDIF_STATUS_PLAYBACK_OPEN; 1781 1782 /* restore settings */ 1783 cs46xx_poke_via_dsp (chip,SP_SPDOUT_CSUV, ins->spdif_csuv_default); 1784 1785 /* deallocate stuff */ 1786 if (ins->spdif_pcm_input_scb != NULL) { 1787 cs46xx_dsp_remove_scb (chip,ins->spdif_pcm_input_scb); 1788 ins->spdif_pcm_input_scb = NULL; 1789 } 1790 1791 cs46xx_dsp_remove_scb (chip,ins->asynch_tx_scb); 1792 ins->asynch_tx_scb = NULL; 1793 1794 /* clear buffer to prevent any undesired noise */ 1795 _dsp_clear_sample_buffer(chip,SPDIFO_IP_OUTPUT_BUFFER1,256); 1796 1797 /* restore state */ 1798 if ( ins->spdif_status_out & DSP_SPDIF_STATUS_OUTPUT_ENABLED ) { 1799 cs46xx_dsp_enable_spdif_out (chip); 1800 } 1801 1802 return 0; 1803} 1804