1 /* 2 * Driver for Digigram miXart soundcards 3 * 4 * DSP firmware management 5 * 6 * Copyright (c) 2003 by Digigram <alsa@digigram.com> 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License as published by 10 * the Free Software Foundation; either version 2 of the License, or 11 * (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 21 */ 22 23 #include <sound/driver.h> 24 #include <linux/interrupt.h> 25 #include <linux/pci.h> 26 #include <linux/firmware.h> 27 #include <asm/io.h> 28 #include <sound/core.h> 29 #include "mixart.h" 30 #include "mixart_mixer.h" 31 #include "mixart_core.h" 32 #include "mixart_hwdep.h" 33 34 35 /** 36 * wait for a value on a peudo register, exit with a timeout 37 * 38 * @param mgr pointer to miXart manager structure 39 * @param offset unsigned pseudo_register base + offset of value 40 * @param value value 41 * @param timeout timeout in centisenconds 42 */ 43 static int mixart_wait_nice_for_register_value(mixart_mgr_t *mgr, u32 offset, int is_egal, u32 value, unsigned long timeout) 44 { 45 unsigned long end_time = jiffies + (timeout * HZ / 100); 46 u32 read; 47 48 do { /* we may take too long time in this loop. 49 * so give controls back to kernel if needed. 50 */ 51 cond_resched(); 52 53 read = readl_be( MIXART_MEM( mgr, offset )); 54 if(is_egal) { 55 if(read == value) return 0; 56 } 57 else { /* wait for different value */ 58 if(read != value) return 0; 59 } 60 } while ( time_after_eq(end_time, jiffies) ); 61 62 return -EBUSY; 63 } 64 65 66 /* 67 structures needed to upload elf code packets 68 */ 69 typedef struct snd_mixart_elf32_ehdr snd_mixart_elf32_ehdr_t; 70 71 struct snd_mixart_elf32_ehdr { 72 u8 e_ident[16]; 73 u16 e_type; 74 u16 e_machine; 75 u32 e_version; 76 u32 e_entry; 77 u32 e_phoff; 78 u32 e_shoff; 79 u32 e_flags; 80 u16 e_ehsize; 81 u16 e_phentsize; 82 u16 e_phnum; 83 u16 e_shentsize; 84 u16 e_shnum; 85 u16 e_shstrndx; 86 }; 87 88 typedef struct snd_mixart_elf32_phdr snd_mixart_elf32_phdr_t; 89 90 struct snd_mixart_elf32_phdr { 91 u32 p_type; 92 u32 p_offset; 93 u32 p_vaddr; 94 u32 p_paddr; 95 u32 p_filesz; 96 u32 p_memsz; 97 u32 p_flags; 98 u32 p_align; 99 }; 100 101 static int mixart_load_elf(mixart_mgr_t *mgr, const struct firmware *dsp ) 102 { 103 char elf32_magic_number[4] = {0x7f,'E','L','F'}; 104 snd_mixart_elf32_ehdr_t *elf_header; 105 int i; 106 107 elf_header = (snd_mixart_elf32_ehdr_t *)dsp->data; 108 for( i=0; i<4; i++ ) 109 if ( elf32_magic_number[i] != elf_header->e_ident[i] ) 110 return -EINVAL; 111 112 if( elf_header->e_phoff != 0 ) { 113 snd_mixart_elf32_phdr_t elf_programheader; 114 115 for( i=0; i < be16_to_cpu(elf_header->e_phnum); i++ ) { 116 u32 pos = be32_to_cpu(elf_header->e_phoff) + (u32)(i * be16_to_cpu(elf_header->e_phentsize)); 117 118 memcpy( &elf_programheader, dsp->data + pos, sizeof(elf_programheader) ); 119 120 if(elf_programheader.p_type != 0) { 121 if( elf_programheader.p_filesz != 0 ) { 122 memcpy_toio( MIXART_MEM( mgr, be32_to_cpu(elf_programheader.p_vaddr)), 123 dsp->data + be32_to_cpu( elf_programheader.p_offset ), 124 be32_to_cpu( elf_programheader.p_filesz )); 125 } 126 } 127 } 128 } 129 return 0; 130 } 131 132 /* 133 * get basic information and init miXart 134 */ 135 136 /* audio IDs for request to the board */ 137 #define MIXART_FIRST_ANA_AUDIO_ID 0 138 #define MIXART_FIRST_DIG_AUDIO_ID 8 139 140 static int mixart_enum_connectors(mixart_mgr_t *mgr) 141 { 142 u32 k; 143 int err; 144 mixart_msg_t request; 145 mixart_enum_connector_resp_t *connector; 146 mixart_audio_info_req_t *audio_info_req; 147 mixart_audio_info_resp_t *audio_info; 148 149 connector = kmalloc(sizeof(*connector), GFP_KERNEL); 150 audio_info_req = kmalloc(sizeof(*audio_info_req), GFP_KERNEL); 151 audio_info = kmalloc(sizeof(*audio_info), GFP_KERNEL); 152 if (! connector || ! audio_info_req || ! audio_info) { 153 err = -ENOMEM; 154 goto __error; 155 } 156 157 audio_info_req->line_max_level = MIXART_FLOAT_P_22_0_TO_HEX; 158 audio_info_req->micro_max_level = MIXART_FLOAT_M_20_0_TO_HEX; 159 audio_info_req->cd_max_level = MIXART_FLOAT____0_0_TO_HEX; 160 161 request.message_id = MSG_SYSTEM_ENUM_PLAY_CONNECTOR; 162 request.uid = (mixart_uid_t){0,0}; /* board num = 0 */ 163 request.data = NULL; 164 request.size = 0; 165 166 err = snd_mixart_send_msg(mgr, &request, sizeof(*connector), connector); 167 if((err < 0) || (connector->error_code) || (connector->uid_count > MIXART_MAX_PHYS_CONNECTORS)) { 168 snd_printk(KERN_ERR "error MSG_SYSTEM_ENUM_PLAY_CONNECTOR\n"); 169 err = -EINVAL; 170 goto __error; 171 } 172 173 for(k=0; k < connector->uid_count; k++) { 174 mixart_pipe_t* pipe; 175 176 if(k < MIXART_FIRST_DIG_AUDIO_ID) { 177 pipe = &mgr->chip[k/2]->pipe_out_ana; 178 } else { 179 pipe = &mgr->chip[(k-MIXART_FIRST_DIG_AUDIO_ID)/2]->pipe_out_dig; 180 } 181 if(k & 1) { 182 pipe->uid_right_connector = connector->uid[k]; /* odd */ 183 } else { 184 pipe->uid_left_connector = connector->uid[k]; /* even */ 185 } 186 187 /* snd_printk(KERN_DEBUG "playback connector[%d].object_id = %x\n", k, connector->uid[k].object_id); */ 188 189 /* TODO: really need send_msg MSG_CONNECTOR_GET_AUDIO_INFO for each connector ? perhaps for analog level caps ? */ 190 request.message_id = MSG_CONNECTOR_GET_AUDIO_INFO; 191 request.uid = connector->uid[k]; 192 request.data = audio_info_req; 193 request.size = sizeof(*audio_info_req); 194 195 err = snd_mixart_send_msg(mgr, &request, sizeof(*audio_info), audio_info); 196 if( err < 0 ) { 197 snd_printk(KERN_ERR "error MSG_CONNECTOR_GET_AUDIO_INFO\n"); 198 goto __error; 199 } 200 /*snd_printk(KERN_DEBUG "play analog_info.analog_level_present = %x\n", audio_info->info.analog_info.analog_level_present);*/ 201 } 202 203 request.message_id = MSG_SYSTEM_ENUM_RECORD_CONNECTOR; 204 request.uid = (mixart_uid_t){0,0}; /* board num = 0 */ 205 request.data = NULL; 206 request.size = 0; 207 208 err = snd_mixart_send_msg(mgr, &request, sizeof(*connector), connector); 209 if((err < 0) || (connector->error_code) || (connector->uid_count > MIXART_MAX_PHYS_CONNECTORS)) { 210 snd_printk(KERN_ERR "error MSG_SYSTEM_ENUM_RECORD_CONNECTOR\n"); 211 err = -EINVAL; 212 goto __error; 213 } 214 215 for(k=0; k < connector->uid_count; k++) { 216 mixart_pipe_t* pipe; 217 218 if(k < MIXART_FIRST_DIG_AUDIO_ID) { 219 pipe = &mgr->chip[k/2]->pipe_in_ana; 220 } else { 221 pipe = &mgr->chip[(k-MIXART_FIRST_DIG_AUDIO_ID)/2]->pipe_in_dig; 222 } 223 if(k & 1) { 224 pipe->uid_right_connector = connector->uid[k]; /* odd */ 225 } else { 226 pipe->uid_left_connector = connector->uid[k]; /* even */ 227 } 228 229 /* snd_printk(KERN_DEBUG "capture connector[%d].object_id = %x\n", k, connector->uid[k].object_id); */ 230 231 /* TODO: really need send_msg MSG_CONNECTOR_GET_AUDIO_INFO for each connector ? perhaps for analog level caps ? */ 232 request.message_id = MSG_CONNECTOR_GET_AUDIO_INFO; 233 request.uid = connector->uid[k]; 234 request.data = audio_info_req; 235 request.size = sizeof(*audio_info_req); 236 237 err = snd_mixart_send_msg(mgr, &request, sizeof(*audio_info), audio_info); 238 if( err < 0 ) { 239 snd_printk(KERN_ERR "error MSG_CONNECTOR_GET_AUDIO_INFO\n"); 240 goto __error; 241 } 242 /*snd_printk(KERN_DEBUG "rec analog_info.analog_level_present = %x\n", audio_info->info.analog_info.analog_level_present);*/ 243 } 244 err = 0; 245 246 __error: 247 kfree(connector); 248 kfree(audio_info_req); 249 kfree(audio_info); 250 251 return err; 252 } 253 254 static int mixart_enum_physio(mixart_mgr_t *mgr) 255 { 256 u32 k; 257 int err; 258 mixart_msg_t request; 259 mixart_uid_t get_console_mgr; 260 mixart_return_uid_t console_mgr; 261 mixart_uid_enumeration_t phys_io; 262 263 /* get the uid for the console manager */ 264 get_console_mgr.object_id = 0; 265 get_console_mgr.desc = MSG_CONSOLE_MANAGER | 0; /* cardindex = 0 */ 266 267 request.message_id = MSG_CONSOLE_GET_CLOCK_UID; 268 request.uid = get_console_mgr; 269 request.data = &get_console_mgr; 270 request.size = sizeof(get_console_mgr); 271 272 err = snd_mixart_send_msg(mgr, &request, sizeof(console_mgr), &console_mgr); 273 274 if( (err < 0) || (console_mgr.error_code != 0) ) { 275 snd_printk(KERN_DEBUG "error MSG_CONSOLE_GET_CLOCK_UID : err=%x\n", console_mgr.error_code); 276 return -EINVAL; 277 } 278 279 /* used later for clock issues ! */ 280 mgr->uid_console_manager = console_mgr.uid; 281 282 request.message_id = MSG_SYSTEM_ENUM_PHYSICAL_IO; 283 request.uid = (mixart_uid_t){0,0}; 284 request.data = &console_mgr.uid; 285 request.size = sizeof(console_mgr.uid); 286 287 err = snd_mixart_send_msg(mgr, &request, sizeof(phys_io), &phys_io); 288 if( (err < 0) || ( phys_io.error_code != 0 ) ) { 289 snd_printk(KERN_ERR "error MSG_SYSTEM_ENUM_PHYSICAL_IO err(%x) error_code(%x)\n", err, phys_io.error_code ); 290 return -EINVAL; 291 } 292 293 snd_assert(phys_io.nb_uid >= (MIXART_MAX_CARDS * 2), return -EINVAL); /* min 2 phys io per card (analog in + analog out) */ 294 295 for(k=0; k<mgr->num_cards; k++) { 296 mgr->chip[k]->uid_in_analog_physio = phys_io.uid[k]; 297 mgr->chip[k]->uid_out_analog_physio = phys_io.uid[phys_io.nb_uid/2 + k]; 298 } 299 300 return 0; 301 } 302 303 304 static int mixart_first_init(mixart_mgr_t *mgr) 305 { 306 u32 k; 307 int err; 308 mixart_msg_t request; 309 310 if((err = mixart_enum_connectors(mgr)) < 0) return err; 311 312 if((err = mixart_enum_physio(mgr)) < 0) return err; 313 314 /* send a synchro command to card (necessary to do this before first MSG_STREAM_START_STREAM_GRP_PACKET) */ 315 /* though why not here */ 316 request.message_id = MSG_SYSTEM_SEND_SYNCHRO_CMD; 317 request.uid = (mixart_uid_t){0,0}; 318 request.data = NULL; 319 request.size = 0; 320 /* this command has no data. response is a 32 bit status */ 321 err = snd_mixart_send_msg(mgr, &request, sizeof(k), &k); 322 if( (err < 0) || (k != 0) ) { 323 snd_printk(KERN_ERR "error MSG_SYSTEM_SEND_SYNCHRO_CMD\n"); 324 return err == 0 ? -EINVAL : err; 325 } 326 327 return 0; 328 } 329 330 331 /* firmware base addresses (when hard coded) */ 332 #define MIXART_MOTHERBOARD_XLX_BASE_ADDRESS 0x00600000 333 334 static int mixart_dsp_load(mixart_mgr_t* mgr, int index, const struct firmware *dsp) 335 { 336 int err, card_index; 337 u32 status_xilinx, status_elf, status_daught; 338 u32 val; 339 340 /* read motherboard xilinx status */ 341 status_xilinx = readl_be( MIXART_MEM( mgr,MIXART_PSEUDOREG_MXLX_STATUS_OFFSET )); 342 /* read elf status */ 343 status_elf = readl_be( MIXART_MEM( mgr,MIXART_PSEUDOREG_ELF_STATUS_OFFSET )); 344 /* read daughterboard xilinx status */ 345 status_daught = readl_be( MIXART_MEM( mgr,MIXART_PSEUDOREG_DXLX_STATUS_OFFSET )); 346 347 /* motherboard xilinx status 5 will say that the board is performing a reset */ 348 if( status_xilinx == 5 ) { 349 snd_printk( KERN_ERR "miXart is resetting !\n"); 350 return -EAGAIN; /* try again later */ 351 } 352 353 switch (index) { 354 case MIXART_MOTHERBOARD_XLX_INDEX: 355 356 /* xilinx already loaded ? */ 357 if( status_xilinx == 4 ) { 358 snd_printk( KERN_DEBUG "xilinx is already loaded !\n"); 359 return 0; 360 } 361 /* the status should be 0 == "idle" */ 362 if( status_xilinx != 0 ) { 363 snd_printk( KERN_ERR "xilinx load error ! status = %d\n", status_xilinx); 364 return -EIO; /* modprob -r may help ? */ 365 } 366 367 /* check xilinx validity */ 368 snd_assert(((u32*)(dsp->data))[0]==0xFFFFFFFF, return -EINVAL); 369 snd_assert(dsp->size % 4 == 0, return -EINVAL); 370 371 /* set xilinx status to copying */ 372 writel_be( 1, MIXART_MEM( mgr, MIXART_PSEUDOREG_MXLX_STATUS_OFFSET )); 373 374 /* setup xilinx base address */ 375 writel_be( MIXART_MOTHERBOARD_XLX_BASE_ADDRESS, MIXART_MEM( mgr,MIXART_PSEUDOREG_MXLX_BASE_ADDR_OFFSET )); 376 /* setup code size for xilinx file */ 377 writel_be( dsp->size, MIXART_MEM( mgr, MIXART_PSEUDOREG_MXLX_SIZE_OFFSET )); 378 379 /* copy xilinx code */ 380 memcpy_toio( MIXART_MEM( mgr, MIXART_MOTHERBOARD_XLX_BASE_ADDRESS), dsp->data, dsp->size); 381 382 /* set xilinx status to copy finished */ 383 writel_be( 2, MIXART_MEM( mgr, MIXART_PSEUDOREG_MXLX_STATUS_OFFSET )); 384 385 /* return, because no further processing needed */ 386 return 0; 387 388 case MIXART_MOTHERBOARD_ELF_INDEX: 389 390 if( status_elf == 4 ) { 391 snd_printk( KERN_DEBUG "elf file already loaded !\n"); 392 return 0; 393 } 394 395 /* the status should be 0 == "idle" */ 396 if( status_elf != 0 ) { 397 snd_printk( KERN_ERR "elf load error ! status = %d\n", status_elf); 398 return -EIO; /* modprob -r may help ? */ 399 } 400 401 /* wait for xilinx status == 4 */ 402 err = mixart_wait_nice_for_register_value( mgr, MIXART_PSEUDOREG_MXLX_STATUS_OFFSET, 1, 4, 500); /* 5sec */ 403 if (err < 0) { 404 snd_printk( KERN_ERR "xilinx was not loaded or could not be started\n"); 405 return err; 406 } 407 408 /* init some data on the card */ 409 writel_be( 0, MIXART_MEM( mgr, MIXART_PSEUDOREG_BOARDNUMBER ) ); /* set miXart boardnumber to 0 */ 410 writel_be( 0, MIXART_MEM( mgr, MIXART_FLOWTABLE_PTR ) ); /* reset pointer to flow table on miXart */ 411 412 /* set elf status to copying */ 413 writel_be( 1, MIXART_MEM( mgr, MIXART_PSEUDOREG_ELF_STATUS_OFFSET )); 414 415 /* process the copying of the elf packets */ 416 err = mixart_load_elf( mgr, dsp ); 417 if (err < 0) return err; 418 419 /* set elf status to copy finished */ 420 writel_be( 2, MIXART_MEM( mgr, MIXART_PSEUDOREG_ELF_STATUS_OFFSET )); 421 422 /* wait for elf status == 4 */ 423 err = mixart_wait_nice_for_register_value( mgr, MIXART_PSEUDOREG_ELF_STATUS_OFFSET, 1, 4, 300); /* 3sec */ 424 if (err < 0) { 425 snd_printk( KERN_ERR "elf could not be started\n"); 426 return err; 427 } 428 429 /* miXart waits at this point on the pointer to the flow table */ 430 writel_be( (u32)mgr->flowinfo.addr, MIXART_MEM( mgr, MIXART_FLOWTABLE_PTR ) ); /* give pointer of flow table to miXart */ 431 432 return 0; /* return, another xilinx file has to be loaded before */ 433 434 case MIXART_AESEBUBOARD_XLX_INDEX: 435 default: 436 437 /* elf and xilinx should be loaded */ 438 if( (status_elf != 4) || (status_xilinx != 4) ) { 439 printk( KERN_ERR "xilinx or elf not successfully loaded\n"); 440 return -EIO; /* modprob -r may help ? */ 441 } 442 443 /* wait for daughter detection != 0 */ 444 err = mixart_wait_nice_for_register_value( mgr, MIXART_PSEUDOREG_DBRD_PRESENCE_OFFSET, 0, 0, 30); /* 300msec */ 445 if (err < 0) { 446 snd_printk( KERN_ERR "error starting elf file\n"); 447 return err; 448 } 449 450 /* the board type can now be retrieved */ 451 mgr->board_type = (DAUGHTER_TYPE_MASK & readl_be( MIXART_MEM( mgr, MIXART_PSEUDOREG_DBRD_TYPE_OFFSET))); 452 453 if (mgr->board_type == MIXART_DAUGHTER_TYPE_NONE) 454 break; /* no daughter board; the file does not have to be loaded, continue after the switch */ 455 456 /* only if aesebu daughter board presence (elf code must run) */ 457 if (mgr->board_type != MIXART_DAUGHTER_TYPE_AES ) 458 return -EINVAL; 459 460 /* daughter should be idle */ 461 if( status_daught != 0 ) { 462 printk( KERN_ERR "daughter load error ! status = %d\n", status_daught); 463 return -EIO; /* modprob -r may help ? */ 464 } 465 466 /* check daughterboard xilinx validity */ 467 snd_assert(((u32*)(dsp->data))[0]==0xFFFFFFFF, return -EINVAL); 468 snd_assert(dsp->size % 4 == 0, return -EINVAL); 469 470 /* inform mixart about the size of the file */ 471 writel_be( dsp->size, MIXART_MEM( mgr, MIXART_PSEUDOREG_DXLX_SIZE_OFFSET )); 472 473 /* set daughterboard status to 1 */ 474 writel_be( 1, MIXART_MEM( mgr, MIXART_PSEUDOREG_DXLX_STATUS_OFFSET )); 475 476 /* wait for status == 2 */ 477 err = mixart_wait_nice_for_register_value( mgr, MIXART_PSEUDOREG_DXLX_STATUS_OFFSET, 1, 2, 30); /* 300msec */ 478 if (err < 0) { 479 snd_printk( KERN_ERR "daughter board load error\n"); 480 return err; 481 } 482 483 /* get the address where to write the file */ 484 val = readl_be( MIXART_MEM( mgr, MIXART_PSEUDOREG_DXLX_BASE_ADDR_OFFSET )); 485 snd_assert(val != 0, return -EINVAL); 486 487 /* copy daughterboard xilinx code */ 488 memcpy_toio( MIXART_MEM( mgr, val), dsp->data, dsp->size); 489 490 /* set daughterboard status to 4 */ 491 writel_be( 4, MIXART_MEM( mgr, MIXART_PSEUDOREG_DXLX_STATUS_OFFSET )); 492 493 /* continue with init */ 494 break; 495 } /* end of switch file index*/ 496 497 /* wait for daughter status == 3 */ 498 err = mixart_wait_nice_for_register_value( mgr, MIXART_PSEUDOREG_DXLX_STATUS_OFFSET, 1, 3, 300); /* 3sec */ 499 if (err < 0) { 500 snd_printk( KERN_ERR "daughter board could not be initialised\n"); 501 return err; 502 } 503 504 /* init mailbox (communication with embedded) */ 505 snd_mixart_init_mailbox(mgr); 506 507 /* first communication with embedded */ 508 err = mixart_first_init(mgr); 509 if (err < 0) { 510 snd_printk( KERN_ERR "miXart could not be set up\n"); 511 return err; 512 } 513 514 /* create devices and mixer in accordance with HW options*/ 515 for (card_index = 0; card_index < mgr->num_cards; card_index++) { 516 mixart_t *chip = mgr->chip[card_index]; 517 518 if ((err = snd_mixart_create_pcm(chip)) < 0) 519 return err; 520 521 if (card_index == 0) { 522 if ((err = snd_mixart_create_mixer(chip->mgr)) < 0) 523 return err; 524 } 525 526 if ((err = snd_card_register(chip->card)) < 0) 527 return err; 528 }; 529 530 snd_printdd("miXart firmware downloaded and successfully set up\n"); 531 532 return 0; 533 } 534 535 536 #if defined(CONFIG_FW_LOADER) || defined(CONFIG_FW_LOADER_MODULE) 537 #if !defined(CONFIG_USE_MIXARTLOADER) && !defined(CONFIG_SND_MIXART) /* built-in kernel */ 538 #define SND_MIXART_FW_LOADER /* use the standard firmware loader */ 539 #endif 540 #endif 541 542 #ifdef SND_MIXART_FW_LOADER 543 544 int snd_mixart_setup_firmware(mixart_mgr_t *mgr) 545 { 546 static char *fw_files[3] = { 547 "miXart8.xlx", "miXart8.elf", "miXart8AES.xlx" 548 }; 549 char path[32]; 550 551 const struct firmware *fw_entry; 552 int i, err; 553 554 for (i = 0; i < 3; i++) { 555 sprintf(path, "mixart/%s", fw_files[i]); 556 if (request_firmware(&fw_entry, path, &mgr->pci->dev)) { 557 snd_printk(KERN_ERR "miXart: can't load firmware %s\n", path); 558 return -ENOENT; 559 } 560 /* fake hwdep dsp record */ 561 err = mixart_dsp_load(mgr, i, fw_entry); 562 release_firmware(fw_entry); 563 if (err < 0) 564 return err; 565 mgr->dsp_loaded |= 1 << i; 566 } 567 return 0; 568 } 569 570 571 #else /* old style firmware loading */ 572 573 /* miXart hwdep interface id string */ 574 #define SND_MIXART_HWDEP_ID "miXart Loader" 575 576 static int mixart_hwdep_open(snd_hwdep_t *hw, struct file *file) 577 { 578 return 0; 579 } 580 581 static int mixart_hwdep_release(snd_hwdep_t *hw, struct file *file) 582 { 583 return 0; 584 } 585 586 static int mixart_hwdep_dsp_status(snd_hwdep_t *hw, snd_hwdep_dsp_status_t *info) 587 { 588 mixart_mgr_t *mgr = hw->private_data; 589 590 strcpy(info->id, "miXart"); 591 info->num_dsps = MIXART_HARDW_FILES_MAX_INDEX; 592 593 if (mgr->dsp_loaded & (1 << MIXART_MOTHERBOARD_ELF_INDEX)) 594 info->chip_ready = 1; 595 596 info->version = MIXART_DRIVER_VERSION; 597 return 0; 598 } 599 600 static int mixart_hwdep_dsp_load(snd_hwdep_t *hw, snd_hwdep_dsp_image_t *dsp) 601 { 602 mixart_mgr_t* mgr = hw->private_data; 603 struct firmware fw; 604 int err; 605 606 fw.size = dsp->length; 607 fw.data = vmalloc(dsp->length); 608 if (! fw.data) { 609 snd_printk(KERN_ERR "miXart: cannot allocate image size %d\n", 610 (int)dsp->length); 611 return -ENOMEM; 612 } 613 if (copy_from_user(fw.data, dsp->image, dsp->length)) { 614 vfree(fw.data); 615 return -EFAULT; 616 } 617 err = mixart_dsp_load(mgr, dsp->index, &fw); 618 vfree(fw.data); 619 if (err < 0) 620 return err; 621 mgr->dsp_loaded |= 1 << dsp->index; 622 return err; 623 } 624 625 int snd_mixart_setup_firmware(mixart_mgr_t *mgr) 626 { 627 int err; 628 snd_hwdep_t *hw; 629 630 /* only create hwdep interface for first cardX (see "index" module parameter)*/ 631 if ((err = snd_hwdep_new(mgr->chip[0]->card, SND_MIXART_HWDEP_ID, 0, &hw)) < 0) 632 return err; 633 634 hw->iface = SNDRV_HWDEP_IFACE_MIXART; 635 hw->private_data = mgr; 636 hw->ops.open = mixart_hwdep_open; 637 hw->ops.release = mixart_hwdep_release; 638 hw->ops.dsp_status = mixart_hwdep_dsp_status; 639 hw->ops.dsp_load = mixart_hwdep_dsp_load; 640 hw->exclusive = 1; 641 sprintf(hw->name, SND_MIXART_HWDEP_ID); 642 mgr->dsp_loaded = 0; 643 644 return snd_card_register(mgr->chip[0]->card); 645 } 646 647 #endif /* SND_MIXART_FW_LOADER */ 648