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 <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 */