LXR linux/sound/pci/mixart/mixart

   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 */
  43static 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 */
  71struct 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
  88struct 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
  99static 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
 138static 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
 252static 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
 304static 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
 334static 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
 555int 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
 581MODULE_FIRMWARE("mixart/miXart8.xlx");
 582MODULE_FIRMWARE("mixart/miXart8.elf");
 583MODULE_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
 590static 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
 605static 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
 631int 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 */
 652