sound/pci/mixart/mixart_hwdep.c

   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 <linux/interrupt.h>
  24 #include <linux/pci.h>
  25 #include <linux/firmware.h>
  26 #include <linux/vmalloc.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(struct mixart_mgr *mgr,
  44                                                u32 offset, int is_egal,
  45                                                u32 value, unsigned long timeout)
  46 {
  47         unsigned long end_time = jiffies + (timeout * HZ / 100);
  48         u32 read;
  49
  50         do {    /* we may take too long time in this loop.
  51                  * so give controls back to kernel if needed.
  52                  */
  53                 cond_resched();
  54
  55                 read = readl_be( MIXART_MEM( mgr, offset ));
  56                 if(is_egal) {
  57                         if(read == value) return 0;
  58                 }
  59                 else { /* wait for different value */
  60                         if(read != value) return 0;
  61                 }
  62         } while ( time_after_eq(end_time, jiffies) );
  63
  64         return -EBUSY;
  65 }
  66
  67
  68 /*
  69   structures needed to upload elf code packets
  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 struct snd_mixart_elf32_phdr {
  89         u32     p_type;
  90         u32     p_offset;
  91         u32     p_vaddr;
  92         u32     p_paddr;
  93         u32     p_filesz;
  94         u32     p_memsz;
  95         u32     p_flags;
  96         u32     p_align;
  97 };
  98
  99 static int mixart_load_elf(struct mixart_mgr *mgr, const struct firmware *dsp )
 100 {
 101         char                    elf32_magic_number[4] = {0x7f,'E','L','F'};
 102         struct snd_mixart_elf32_ehdr *elf_header;
 103         int                     i;
 104
 105         elf_header = (struct snd_mixart_elf32_ehdr *)dsp->data;
 106         for( i=0; i<4; i++ )
 107                 if ( elf32_magic_number[i] != elf_header->e_ident[i] )
 108                         return -EINVAL;
 109
 110         if( elf_header->e_phoff != 0 ) {
 111                 struct snd_mixart_elf32_phdr     elf_programheader;
 112
 113                 for( i=0; i < be16_to_cpu(elf_header->e_phnum); i++ ) {
 114                         u32 pos = be32_to_cpu(elf_header->e_phoff) + (u32)(i * be16_to_cpu(elf_header->e_phentsize));
 115
 116                         memcpy( &elf_programheader, dsp->data + pos, sizeof(elf_programheader) );
 117
 118                         if(elf_programheader.p_type != 0) {
 119                                 if( elf_programheader.p_filesz != 0 ) {
 120                                         memcpy_toio( MIXART_MEM( mgr, be32_to_cpu(elf_programheader.p_vaddr)),
 121                                                      dsp->data + be32_to_cpu( elf_programheader.p_offset ),
 122                                                      be32_to_cpu( elf_programheader.p_filesz ));
 123                                 }
 124                         }
 125                 }
 126         }
 127         return 0;
 128 }
 129
 130 /*
 131  * get basic information and init miXart
 132  */
 133
 134 /* audio IDs for request to the board */
 135 #define MIXART_FIRST_ANA_AUDIO_ID       0
 136 #define MIXART_FIRST_DIG_AUDIO_ID       8
 137
 138 static int mixart_enum_connectors(struct mixart_mgr *mgr)
 139 {
 140         u32 k;
 141         int err;
 142         struct mixart_msg request;
 143         struct mixart_enum_connector_resp *connector;
 144         struct mixart_audio_info_req  *audio_info_req;
 145         struct mixart_audio_info_resp *audio_info;
 146
 147         connector = kmalloc(sizeof(*connector), GFP_KERNEL);
 148         audio_info_req = kmalloc(sizeof(*audio_info_req), GFP_KERNEL);
 149         audio_info = kmalloc(sizeof(*audio_info), GFP_KERNEL);
 150         if (! connector || ! audio_info_req || ! audio_info) {
 151                 err = -ENOMEM;
 152                 goto __error;
 153         }
 154
 155         audio_info_req->line_max_level = MIXART_FLOAT_P_22_0_TO_HEX;
 156         audio_info_req->micro_max_level = MIXART_FLOAT_M_20_0_TO_HEX;
 157         audio_info_req->cd_max_level = MIXART_FLOAT____0_0_TO_HEX;
 158
 159         request.message_id = MSG_SYSTEM_ENUM_PLAY_CONNECTOR;
 160         request.uid = (struct mixart_uid){0,0};  /* board num = 0 */
 161         request.data = NULL;
 162         request.size = 0;
 163
 164         err = snd_mixart_send_msg(mgr, &request, sizeof(*connector), connector);
 165         if((err < 0) || (connector->error_code) || (connector->uid_count > MIXART_MAX_PHYS_CONNECTORS)) {
 166                 snd_printk(KERN_ERR "error MSG_SYSTEM_ENUM_PLAY_CONNECTOR\n");
 167                 err = -EINVAL;
 168                 goto __error;
 169         }
 170
 171         for(k=0; k < connector->uid_count; k++) {
 172                 struct mixart_pipe *pipe;
 173
 174                 if(k < MIXART_FIRST_DIG_AUDIO_ID) {
 175                         pipe = &mgr->chip[k/2]->pipe_out_ana;
 176                 } else {
 177                         pipe = &mgr->chip[(k-MIXART_FIRST_DIG_AUDIO_ID)/2]->pipe_out_dig;
 178                 }
 179                 if(k & 1) {
 180                         pipe->uid_right_connector = connector->uid[k];   /* odd */
 181                 } else {
 182                         pipe->uid_left_connector = connector->uid[k];    /* even */
 183                 }
 184
 185                 /* snd_printk(KERN_DEBUG "playback connector[%d].object_id = %x\n", k, connector->uid[k].object_id); */
 186
 187                 /* TODO: really need send_msg MSG_CONNECTOR_GET_AUDIO_INFO for each connector ? perhaps for analog level caps ? */
 188                 request.message_id = MSG_CONNECTOR_GET_AUDIO_INFO;
 189                 request.uid = connector->uid[k];
 190                 request.data = audio_info_req;
 191                 request.size = sizeof(*audio_info_req);
 192
 193                 err = snd_mixart_send_msg(mgr, &request, sizeof(*audio_info), audio_info);
 194                 if( err < 0 ) {
 195                         snd_printk(KERN_ERR "error MSG_CONNECTOR_GET_AUDIO_INFO\n");
 196                         goto __error;
 197                 }
 198                 /*snd_printk(KERN_DEBUG "play  analog_info.analog_level_present = %x\n", audio_info->info.analog_info.analog_level_present);*/
 199         }
 200
 201         request.message_id = MSG_SYSTEM_ENUM_RECORD_CONNECTOR;
 202         request.uid = (struct mixart_uid){0,0};  /* board num = 0 */
 203         request.data = NULL;
 204         request.size = 0;
 205
 206         err = snd_mixart_send_msg(mgr, &request, sizeof(*connector), connector);
 207         if((err < 0) || (connector->error_code) || (connector->uid_count > MIXART_MAX_PHYS_CONNECTORS)) {
 208                 snd_printk(KERN_ERR "error MSG_SYSTEM_ENUM_RECORD_CONNECTOR\n");
 209                 err = -EINVAL;
 210                 goto __error;
 211         }
 212
 213         for(k=0; k < connector->uid_count; k++) {
 214                 struct mixart_pipe *pipe;
 215
 216                 if(k < MIXART_FIRST_DIG_AUDIO_ID) {
 217                         pipe = &mgr->chip[k/2]->pipe_in_ana;
 218                 } else {
 219                         pipe = &mgr->chip[(k-MIXART_FIRST_DIG_AUDIO_ID)/2]->pipe_in_dig;
 220                 }
 221                 if(k & 1) {
 222                         pipe->uid_right_connector = connector->uid[k];   /* odd */
 223                 } else {
 224                         pipe->uid_left_connector = connector->uid[k];    /* even */
 225                 }
 226
 227                 /* snd_printk(KERN_DEBUG "capture connector[%d].object_id = %x\n", k, connector->uid[k].object_id); */
 228
 229                 /* TODO: really need send_msg MSG_CONNECTOR_GET_AUDIO_INFO for each connector ? perhaps for analog level caps ? */
 230                 request.message_id = MSG_CONNECTOR_GET_AUDIO_INFO;
 231                 request.uid = connector->uid[k];
 232                 request.data = audio_info_req;
 233                 request.size = sizeof(*audio_info_req);
 234
 235                 err = snd_mixart_send_msg(mgr, &request, sizeof(*audio_info), audio_info);
 236                 if( err < 0 ) {
 237                         snd_printk(KERN_ERR "error MSG_CONNECTOR_GET_AUDIO_INFO\n");
 238                         goto __error;
 239                 }
 240                 /*snd_printk(KERN_DEBUG "rec  analog_info.analog_level_present = %x\n", audio_info->info.analog_info.analog_level_present);*/
 241         }
 242         err = 0;
 243
 244  __error:
 245         kfree(connector);
 246         kfree(audio_info_req);
 247         kfree(audio_info);
 248
 249         return err;
 250 }
 251
 252 static int mixart_enum_physio(struct mixart_mgr *mgr)
 253 {
 254         u32 k;
 255         int err;
 256         struct mixart_msg request;
 257         struct mixart_uid get_console_mgr;
 258         struct mixart_return_uid console_mgr;
 259         struct mixart_uid_enumeration phys_io;
 260
 261         /* get the uid for the console manager */
 262         get_console_mgr.object_id = 0;
 263         get_console_mgr.desc = MSG_CONSOLE_MANAGER | 0; /* cardindex = 0 */
 264
 265         request.message_id = MSG_CONSOLE_GET_CLOCK_UID;
 266         request.uid = get_console_mgr;
 267         request.data = &get_console_mgr;
 268         request.size = sizeof(get_console_mgr);
 269
 270         err = snd_mixart_send_msg(mgr, &request, sizeof(console_mgr), &console_mgr);
 271
 272         if( (err < 0) || (console_mgr.error_code != 0) ) {
 273                 snd_printk(KERN_DEBUG "error MSG_CONSOLE_GET_CLOCK_UID : err=%x\n", console_mgr.error_code);
 274                 return -EINVAL;
 275         }
 276
 277         /* used later for clock issues ! */
 278         mgr->uid_console_manager = console_mgr.uid;
 279
 280         request.message_id = MSG_SYSTEM_ENUM_PHYSICAL_IO;
 281         request.uid = (struct mixart_uid){0,0};
 282         request.data = &console_mgr.uid;
 283         request.size = sizeof(console_mgr.uid);
 284
 285         err = snd_mixart_send_msg(mgr, &request, sizeof(phys_io), &phys_io);
 286         if( (err < 0) || ( phys_io.error_code != 0 ) ) {
 287                 snd_printk(KERN_ERR "error MSG_SYSTEM_ENUM_PHYSICAL_IO err(%x) error_code(%x)\n", err, phys_io.error_code );
 288                 return -EINVAL;
 289         }
 290
 291         /* min 2 phys io per card (analog in + analog out) */
 292         if (phys_io.nb_uid < MIXART_MAX_CARDS * 2)
 293                 return -EINVAL;
 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(struct mixart_mgr *mgr)
 305 {
 306         u32 k;
 307         int err;
 308         struct mixart_msg 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 = (struct mixart_uid){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(struct mixart_mgr* 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",
 364                                    status_xilinx);
 365                         return -EIO; /* modprob -r may help ? */
 366                 }
 367
 368                 /* check xilinx validity */
 369                 if (((u32*)(dsp->data))[0] == 0xffffffff)
 370                         return -EINVAL;
 371                 if (dsp->size % 4)
 372                         return -EINVAL;
 373
 374                 /* set xilinx status to copying */
 375                 writel_be( 1, MIXART_MEM( mgr, MIXART_PSEUDOREG_MXLX_STATUS_OFFSET ));
 376
 377                 /* setup xilinx base address */
 378                 writel_be( MIXART_MOTHERBOARD_XLX_BASE_ADDRESS, MIXART_MEM( mgr,MIXART_PSEUDOREG_MXLX_BASE_ADDR_OFFSET ));
 379                 /* setup code size for xilinx file */
 380                 writel_be( dsp->size, MIXART_MEM( mgr, MIXART_PSEUDOREG_MXLX_SIZE_OFFSET ));
 381
 382                 /* copy xilinx code */
 383                 memcpy_toio(  MIXART_MEM( mgr, MIXART_MOTHERBOARD_XLX_BASE_ADDRESS),  dsp->data,  dsp->size);
 384
 385                 /* set xilinx status to copy finished */
 386                 writel_be( 2, MIXART_MEM( mgr, MIXART_PSEUDOREG_MXLX_STATUS_OFFSET ));
 387
 388                 /* return, because no further processing needed */
 389                 return 0;
 390
 391         case MIXART_MOTHERBOARD_ELF_INDEX:
 392
 393                 if (status_elf == 4) {
 394                         snd_printk(KERN_DEBUG "elf file already loaded !\n");
 395                         return 0;
 396                 }
 397
 398                 /* the status should be 0 == "idle" */
 399                 if (status_elf != 0) {
 400                         snd_printk(KERN_ERR "elf load error ! status = %d\n",
 401                                    status_elf);
 402                         return -EIO; /* modprob -r may help ? */
 403                 }
 404
 405                 /* wait for xilinx status == 4 */
 406                 err = mixart_wait_nice_for_register_value( mgr, MIXART_PSEUDOREG_MXLX_STATUS_OFFSET, 1, 4, 500); /* 5sec */
 407                 if (err < 0) {
 408                         snd_printk(KERN_ERR "xilinx was not loaded or "
 409                                    "could not be started\n");
 410                         return err;
 411                 }
 412
 413                 /* init some data on the card */
 414                 writel_be( 0, MIXART_MEM( mgr, MIXART_PSEUDOREG_BOARDNUMBER ) ); /* set miXart boardnumber to 0 */
 415                 writel_be( 0, MIXART_MEM( mgr, MIXART_FLOWTABLE_PTR ) );         /* reset pointer to flow table on miXart */
 416
 417                 /* set elf status to copying */
 418                 writel_be( 1, MIXART_MEM( mgr, MIXART_PSEUDOREG_ELF_STATUS_OFFSET ));
 419
 420                 /* process the copying of the elf packets */
 421                 err = mixart_load_elf( mgr, dsp );
 422                 if (err < 0) return err;
 423
 424                 /* set elf status to copy finished */
 425                 writel_be( 2, MIXART_MEM( mgr, MIXART_PSEUDOREG_ELF_STATUS_OFFSET ));
 426
 427                 /* wait for elf status == 4 */
 428                 err = mixart_wait_nice_for_register_value( mgr, MIXART_PSEUDOREG_ELF_STATUS_OFFSET, 1, 4, 300); /* 3sec */
 429                 if (err < 0) {
 430                         snd_printk(KERN_ERR "elf could not be started\n");
 431                         return err;
 432                 }
 433
 434                 /* miXart waits at this point on the pointer to the flow table */
 435                 writel_be( (u32)mgr->flowinfo.addr, MIXART_MEM( mgr, MIXART_FLOWTABLE_PTR ) ); /* give pointer of flow table to miXart */
 436
 437                 return 0;  /* return, another xilinx file has to be loaded before */
 438
 439         case MIXART_AESEBUBOARD_XLX_INDEX:
 440         default:
 441
 442                 /* elf and xilinx should be loaded */
 443                 if (status_elf != 4 || status_xilinx != 4) {
 444                         printk(KERN_ERR "xilinx or elf not "
 445                                "successfully loaded\n");
 446                         return -EIO; /* modprob -r may help ? */
 447                 }
 448
 449                 /* wait for daughter detection != 0 */
 450                 err = mixart_wait_nice_for_register_value( mgr, MIXART_PSEUDOREG_DBRD_PRESENCE_OFFSET, 0, 0, 30); /* 300msec */
 451                 if (err < 0) {
 452                         snd_printk(KERN_ERR "error starting elf file\n");
 453                         return err;
 454                 }
 455
 456                 /* the board type can now be retrieved */
 457                 mgr->board_type = (DAUGHTER_TYPE_MASK & readl_be( MIXART_MEM( mgr, MIXART_PSEUDOREG_DBRD_TYPE_OFFSET)));
 458
 459                 if (mgr->board_type == MIXART_DAUGHTER_TYPE_NONE)
 460                         break;  /* no daughter board; the file does not have to be loaded, continue after the switch */
 461
 462                 /* only if aesebu daughter board presence (elf code must run)  */
 463                 if (mgr->board_type != MIXART_DAUGHTER_TYPE_AES )
 464                         return -EINVAL;
 465
 466                 /* daughter should be idle */
 467                 if (status_daught != 0) {
 468                         printk(KERN_ERR "daughter load error ! status = %d\n",
 469                                status_daught);
 470                         return -EIO; /* modprob -r may help ? */
 471                 }
 472
 473                 /* check daughterboard xilinx validity */
 474                 if (((u32*)(dsp->data))[0] == 0xffffffff)
 475                         return -EINVAL;
 476                 if (dsp->size % 4)
 477                         return -EINVAL;
 478
 479                 /* inform mixart about the size of the file */
 480                 writel_be( dsp->size, MIXART_MEM( mgr, MIXART_PSEUDOREG_DXLX_SIZE_OFFSET ));
 481
 482                 /* set daughterboard status to 1 */
 483                 writel_be( 1, MIXART_MEM( mgr, MIXART_PSEUDOREG_DXLX_STATUS_OFFSET ));
 484
 485                 /* wait for status == 2 */
 486                 err = mixart_wait_nice_for_register_value( mgr, MIXART_PSEUDOREG_DXLX_STATUS_OFFSET, 1, 2, 30); /* 300msec */
 487                 if (err < 0) {
 488                         snd_printk(KERN_ERR "daughter board load error\n");
 489                         return err;
 490                 }
 491
 492                 /* get the address where to write the file */
 493                 val = readl_be( MIXART_MEM( mgr, MIXART_PSEUDOREG_DXLX_BASE_ADDR_OFFSET ));
 494                 if (!val)
 495                         return -EINVAL;
 496
 497                 /* copy daughterboard xilinx code */
 498                 memcpy_toio(  MIXART_MEM( mgr, val),  dsp->data,  dsp->size);
 499
 500                 /* set daughterboard status to 4 */
 501                 writel_be( 4, MIXART_MEM( mgr, MIXART_PSEUDOREG_DXLX_STATUS_OFFSET ));
 502
 503                 /* continue with init */
 504                 break;
 505         } /* end of switch file index*/
 506
 507         /* wait for daughter status == 3 */
 508         err = mixart_wait_nice_for_register_value( mgr, MIXART_PSEUDOREG_DXLX_STATUS_OFFSET, 1, 3, 300); /* 3sec */
 509         if (err < 0) {
 510                 snd_printk(KERN_ERR
 511                            "daughter board could not be initialised\n");
 512                 return err;
 513         }
 514
 515         /* init mailbox (communication with embedded) */
 516         snd_mixart_init_mailbox(mgr);
 517
 518         /* first communication with embedded */
 519         err = mixart_first_init(mgr);
 520         if (err < 0) {
 521                 snd_printk(KERN_ERR "miXart could not be set up\n");
 522                 return err;
 523         }
 524
 525         /* create devices and mixer in accordance with HW options*/
 526         for (card_index = 0; card_index < mgr->num_cards; card_index++) {
 527                 struct snd_mixart *chip = mgr->chip[card_index];
 528
 529                 if ((err = snd_mixart_create_pcm(chip)) < 0)
 530                         return err;
 531
 532                 if (card_index == 0) {
 533                         if ((err = snd_mixart_create_mixer(chip->mgr)) < 0)
 534                                 return err;
 535                 }
 536
 537                 if ((err = snd_card_register(chip->card)) < 0)
 538                         return err;
 539         };
 540
 541         snd_printdd("miXart firmware downloaded and successfully set up\n");
 542
 543         return 0;
 544 }
 545
 546
 547 #if defined(CONFIG_FW_LOADER) || defined(CONFIG_FW_LOADER_MODULE)
 548 #if !defined(CONFIG_USE_MIXARTLOADER) && !defined(CONFIG_SND_MIXART) /* built-in kernel */
 549 #define SND_MIXART_FW_LOADER    /* use the standard firmware loader */
 550 #endif
 551 #endif
 552
 553 #ifdef SND_MIXART_FW_LOADER
 554
 555 int snd_mixart_setup_firmware(struct mixart_mgr *mgr)
 556 {
 557         static char *fw_files[3] = {
 558                 "miXart8.xlx", "miXart8.elf", "miXart8AES.xlx"
 559         };
 560         char path[32];
 561
 562         const struct firmware *fw_entry;
 563         int i, err;
 564
 565         for (i = 0; i < 3; i++) {
 566                 sprintf(path, "mixart/%s", fw_files[i]);
 567                 if (request_firmware(&fw_entry, path, &mgr->pci->dev)) {
 568                         snd_printk(KERN_ERR "miXart: can't load firmware %s\n", path);
 569                         return -ENOENT;
 570                 }
 571                 /* fake hwdep dsp record */
 572                 err = mixart_dsp_load(mgr, i, fw_entry);
 573                 release_firmware(fw_entry);
 574                 if (err < 0)
 575                         return err;
 576                 mgr->dsp_loaded |= 1 << i;
 577         }
 578         return 0;
 579 }
 580
 581 MODULE_FIRMWARE("mixart/miXart8.xlx");
 582 MODULE_FIRMWARE("mixart/miXart8.elf");
 583 MODULE_FIRMWARE("mixart/miXart8AES.xlx");
 584
 585 #else /* old style firmware loading */
 586
 587 /* miXart hwdep interface id string */
 588 #define SND_MIXART_HWDEP_ID       "miXart Loader"
 589
 590 static int mixart_hwdep_dsp_status(struct snd_hwdep *hw,
 591                                    struct snd_hwdep_dsp_status *info)
 592 {
 593         struct mixart_mgr *mgr = hw->private_data;
 594
 595         strcpy(info->id, "miXart");
 596         info->num_dsps = MIXART_HARDW_FILES_MAX_INDEX;
 597
 598         if (mgr->dsp_loaded & (1 <<  MIXART_MOTHERBOARD_ELF_INDEX))
 599                 info->chip_ready = 1;
 600
 601         info->version = MIXART_DRIVER_VERSION;
 602         return 0;
 603 }
 604
 605 static int mixart_hwdep_dsp_load(struct snd_hwdep *hw,
 606                                  struct snd_hwdep_dsp_image *dsp)
 607 {
 608         struct mixart_mgr* mgr = hw->private_data;
 609         struct firmware fw;
 610         int err;
 611
 612         fw.size = dsp->length;
 613         fw.data = vmalloc(dsp->length);
 614         if (! fw.data) {
 615                 snd_printk(KERN_ERR "miXart: cannot allocate image size %d\n",
 616                            (int)dsp->length);
 617                 return -ENOMEM;
 618         }
 619         if (copy_from_user((void *) fw.data, dsp->image, dsp->length)) {
 620                 vfree(fw.data);
 621                 return -EFAULT;
 622         }
 623         err = mixart_dsp_load(mgr, dsp->index, &fw);
 624         vfree(fw.data);
 625         if (err < 0)
 626                 return err;
 627         mgr->dsp_loaded |= 1 << dsp->index;
 628         return err;
 629 }
 630
 631 int snd_mixart_setup_firmware(struct mixart_mgr *mgr)
 632 {
 633         int err;
 634         struct snd_hwdep *hw;
 635
 636         /* only create hwdep interface for first cardX (see "index" module parameter)*/
 637         if ((err = snd_hwdep_new(mgr->chip[0]->card, SND_MIXART_HWDEP_ID, 0, &hw)) < 0)
 638                 return err;
 639
 640         hw->iface = SNDRV_HWDEP_IFACE_MIXART;
 641         hw->private_data = mgr;
 642         hw->ops.dsp_status = mixart_hwdep_dsp_status;
 643         hw->ops.dsp_load = mixart_hwdep_dsp_load;
 644         hw->exclusive = 1;
 645         sprintf(hw->name,  SND_MIXART_HWDEP_ID);
 646         mgr->dsp_loaded = 0;
 647
 648         return snd_card_register(mgr->chip[0]->card);
 649 }
 650
 651 #endif /* SND_MIXART_FW_LOADER */