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 <linux/slab.h>
  28#include <asm/io.h>
  29#include <sound/core.h>
  30#include "mixart.h"
  31#include "mixart_mixer.h"
  32#include "mixart_core.h"
  33#include "mixart_hwdep.h"
  34
  35
  36/**
  37 * wait for a value on a peudo register, exit with a timeout
  38 *
  39 * @param mgr pointer to miXart manager structure
  40 * @param offset unsigned pseudo_register base + offset of value
  41 * @param value value
  42 * @param timeout timeout in centisenconds
  43 */
  44static int mixart_wait_nice_for_register_value(struct mixart_mgr *mgr,
  45                                               u32 offset, int is_egal,
  46                                               u32 value, unsigned long timeout)
  47{
  48        unsigned long end_time = jiffies + (timeout * HZ / 100);
  49        u32 read;
  50
  51        do {    /* we may take too long time in this loop.
  52                 * so give controls back to kernel if needed.
  53                 */
  54                cond_resched();
  55
  56                read = readl_be( MIXART_MEM( mgr, offset ));
  57                if(is_egal) {
  58                        if(read == value) return 0;
  59                }
  60                else { /* wait for different value */
  61                        if(read != value) return 0;
  62                }
  63        } while ( time_after_eq(end_time, jiffies) );
  64
  65        return -EBUSY;
  66}
  67
  68
  69/*
  70  structures needed to upload elf code packets 
  71 */
  72struct snd_mixart_elf32_ehdr {
  73        u8      e_ident[16];
  74        u16     e_type;
  75        u16     e_machine;
  76        u32     e_version;
  77        u32     e_entry;
  78        u32     e_phoff;
  79        u32     e_shoff;
  80        u32     e_flags;
  81        u16     e_ehsize;
  82        u16     e_phentsize;
  83        u16     e_phnum;
  84        u16     e_shentsize;
  85        u16     e_shnum;
  86        u16     e_shstrndx;
  87};
  88
  89struct snd_mixart_elf32_phdr {
  90        u32     p_type;
  91        u32     p_offset;
  92        u32     p_vaddr;
  93        u32     p_paddr;
  94        u32     p_filesz;
  95        u32     p_memsz;
  96        u32     p_flags;
  97        u32     p_align;
  98};
  99
 100static int mixart_load_elf(struct mixart_mgr *mgr, const struct firmware *dsp )
 101{
 102        char                    elf32_magic_number[4] = {0x7f,'E','L','F'};
 103        struct snd_mixart_elf32_ehdr *elf_header;
 104        int                     i;
 105
 106        elf_header = (struct snd_mixart_elf32_ehdr *)dsp->data;
 107        for( i=0; i<4; i++ )
 108                if ( elf32_magic_number[i] != elf_header->e_ident[i] )
 109                        return -EINVAL;
 110
 111        if( elf_header->e_phoff != 0 ) {
 112                struct snd_mixart_elf32_phdr     elf_programheader;
 113
 114                for( i=0; i < be16_to_cpu(elf_header->e_phnum); i++ ) {
 115                        u32 pos = be32_to_cpu(elf_header->e_phoff) + (u32)(i * be16_to_cpu(elf_header->e_phentsize));
 116
 117                        memcpy( &elf_programheader, dsp->data + pos, sizeof(elf_programheader) );
 118
 119                        if(elf_programheader.p_type != 0) {
 120                                if( elf_programheader.p_filesz != 0 ) {
 121                                        memcpy_toio( MIXART_MEM( mgr, be32_to_cpu(elf_programheader.p_vaddr)),
 122                                                     dsp->data + be32_to_cpu( elf_programheader.p_offset ),
 123                                                     be32_to_cpu( elf_programheader.p_filesz ));
 124                                }
 125                        }
 126                }
 127        }
 128        return 0;
 129}
 130
 131/*
 132 * get basic information and init miXart
 133 */
 134
 135/* audio IDs for request to the board */
 136#define MIXART_FIRST_ANA_AUDIO_ID       0
 137#define MIXART_FIRST_DIG_AUDIO_ID       8
 138
 139static int mixart_enum_connectors(struct mixart_mgr *mgr)
 140{
 141        u32 k;
 142        int err;
 143        struct mixart_msg request;
 144        struct mixart_enum_connector_resp *connector;
 145        struct mixart_audio_info_req  *audio_info_req;
 146        struct mixart_audio_info_resp *audio_info;
 147
 148        connector = kmalloc(sizeof(*connector), GFP_KERNEL);
 149        audio_info_req = kmalloc(sizeof(*audio_info_req), GFP_KERNEL);
 150        audio_info = kmalloc(sizeof(*audio_info), GFP_KERNEL);
 151        if (! connector || ! audio_info_req || ! audio_info) {
 152                err = -ENOMEM;
 153                goto __error;
 154        }
 155
 156        audio_info_req->line_max_level = MIXART_FLOAT_P_22_0_TO_HEX;
 157        audio_info_req->micro_max_level = MIXART_FLOAT_M_20_0_TO_HEX;
 158        audio_info_req->cd_max_level = MIXART_FLOAT____0_0_TO_HEX;
 159
 160        request.message_id = MSG_SYSTEM_ENUM_PLAY_CONNECTOR;
 161        request.uid = (struct mixart_uid){0,0};  /* board num = 0 */
 162        request.data = NULL;
 163        request.size = 0;
 164
 165        err = snd_mixart_send_msg(mgr, &request, sizeof(*connector), connector);
 166        if((err < 0) || (connector->error_code) || (connector->uid_count > MIXART_MAX_PHYS_CONNECTORS)) {
 167                snd_printk(KERN_ERR "error MSG_SYSTEM_ENUM_PLAY_CONNECTOR\n");
 168                err = -EINVAL;
 169                goto __error;
 170        }
 171
 172        for(k=0; k < connector->uid_count; k++) {
 173                struct mixart_pipe *pipe;
 174
 175                if(k < MIXART_FIRST_DIG_AUDIO_ID) {
 176                        pipe = &mgr->chip[k/2]->pipe_out_ana;
 177                } else {
 178                        pipe = &mgr->chip[(k-MIXART_FIRST_DIG_AUDIO_ID)/2]->pipe_out_dig;
 179                }
 180                if(k & 1) {
 181                        pipe->uid_right_connector = connector->uid[k];   /* odd */
 182                } else {
 183                        pipe->uid_left_connector = connector->uid[k];    /* even */
 184                }
 185
 186                /* snd_printk(KERN_DEBUG "playback connector[%d].object_id = %x\n", k, connector->uid[k].object_id); */
 187
 188                /* TODO: really need send_msg MSG_CONNECTOR_GET_AUDIO_INFO for each connector ? perhaps for analog level caps ? */
 189                request.message_id = MSG_CONNECTOR_GET_AUDIO_INFO;
 190                request.uid = connector->uid[k];
 191                request.data = audio_info_req;
 192                request.size = sizeof(*audio_info_req);
 193
 194                err = snd_mixart_send_msg(mgr, &request, sizeof(*audio_info), audio_info);
 195                if( err < 0 ) {
 196                        snd_printk(KERN_ERR "error MSG_CONNECTOR_GET_AUDIO_INFO\n");
 197                        goto __error;
 198                }
 199                /*snd_printk(KERN_DEBUG "play  analog_info.analog_level_present = %x\n", audio_info->info.analog_info.analog_level_present);*/
 200        }
 201
 202        request.message_id = MSG_SYSTEM_ENUM_RECORD_CONNECTOR;
 203        request.uid = (struct mixart_uid){0,0};  /* board num = 0 */
 204        request.data = NULL;
 205        request.size = 0;
 206
 207        err = snd_mixart_send_msg(mgr, &request, sizeof(*connector), connector);
 208        if((err < 0) || (connector->error_code) || (connector->uid_count > MIXART_MAX_PHYS_CONNECTORS)) {
 209                snd_printk(KERN_ERR "error MSG_SYSTEM_ENUM_RECORD_CONNECTOR\n");
 210                err = -EINVAL;
 211                goto __error;
 212        }
 213
 214        for(k=0; k < connector->uid_count; k++) {
 215                struct mixart_pipe *pipe;
 216
 217                if(k < MIXART_FIRST_DIG_AUDIO_ID) {
 218                        pipe = &mgr->chip[k/2]->pipe_in_ana;
 219                } else {
 220                        pipe = &mgr->chip[(k-MIXART_FIRST_DIG_AUDIO_ID)/2]->pipe_in_dig;
 221                }
 222                if(k & 1) {
 223                        pipe->uid_right_connector = connector->uid[k];   /* odd */
 224                } else {
 225                        pipe->uid_left_connector = connector->uid[k];    /* even */
 226                }
 227
 228                /* snd_printk(KERN_DEBUG "capture connector[%d].object_id = %x\n", k, connector->uid[k].object_id); */
 229
 230                /* TODO: really need send_msg MSG_CONNECTOR_GET_AUDIO_INFO for each connector ? perhaps for analog level caps ? */
 231                request.message_id = MSG_CONNECTOR_GET_AUDIO_INFO;
 232                request.uid = connector->uid[k];
 233                request.data = audio_info_req;
 234                request.size = sizeof(*audio_info_req);
 235
 236                err = snd_mixart_send_msg(mgr, &request, sizeof(*audio_info), audio_info);
 237                if( err < 0 ) {
 238                        snd_printk(KERN_ERR "error MSG_CONNECTOR_GET_AUDIO_INFO\n");
 239                        goto __error;
 240                }
 241                /*snd_printk(KERN_DEBUG "rec  analog_info.analog_level_present = %x\n", audio_info->info.analog_info.analog_level_present);*/
 242        }
 243        err = 0;
 244
 245 __error:
 246        kfree(connector);
 247        kfree(audio_info_req);
 248        kfree(audio_info);
 249
 250        return err;
 251}
 252
 253static int mixart_enum_physio(struct mixart_mgr *mgr)
 254{
 255        u32 k;
 256        int err;
 257        struct mixart_msg request;
 258        struct mixart_uid get_console_mgr;
 259        struct mixart_return_uid console_mgr;
 260        struct mixart_uid_enumeration phys_io;
 261
 262        /* get the uid for the console manager */
 263        get_console_mgr.object_id = 0;
 264        get_console_mgr.desc = MSG_CONSOLE_MANAGER | 0; /* cardindex = 0 */
 265
 266        request.message_id = MSG_CONSOLE_GET_CLOCK_UID;
 267        request.uid = get_console_mgr;
 268        request.data = &get_console_mgr;
 269        request.size = sizeof(get_console_mgr);
 270
 271        err = snd_mixart_send_msg(mgr, &request, sizeof(console_mgr), &console_mgr);
 272
 273        if( (err < 0) || (console_mgr.error_code != 0) ) {
 274                snd_printk(KERN_DEBUG "error MSG_CONSOLE_GET_CLOCK_UID : err=%x\n", console_mgr.error_code);
 275                return -EINVAL;
 276        }
 277
 278        /* used later for clock issues ! */
 279        mgr->uid_console_manager = console_mgr.uid;
 280
 281        request.message_id = MSG_SYSTEM_ENUM_PHYSICAL_IO;
 282        request.uid = (struct mixart_uid){0,0};
 283        request.data = &console_mgr.uid;
 284        request.size = sizeof(console_mgr.uid);
 285
 286        err = snd_mixart_send_msg(mgr, &request, sizeof(phys_io), &phys_io);
 287        if( (err < 0) || ( phys_io.error_code != 0 ) ) {
 288                snd_printk(KERN_ERR "error MSG_SYSTEM_ENUM_PHYSICAL_IO err(%x) error_code(%x)\n", err, phys_io.error_code );
 289                return -EINVAL;
 290        }
 291
 292        /* min 2 phys io per card (analog in + analog out) */
 293        if (phys_io.nb_uid < MIXART_MAX_CARDS * 2)
 294                return -EINVAL;
 295
 296        for(k=0; k<mgr->num_cards; k++) {
 297                mgr->chip[k]->uid_in_analog_physio = phys_io.uid[k];
 298                mgr->chip[k]->uid_out_analog_physio = phys_io.uid[phys_io.nb_uid/2 + k]; 
 299        }
 300
 301        return 0;
 302}
 303
 304
 305static int mixart_first_init(struct mixart_mgr *mgr)
 306{
 307        u32 k;
 308        int err;
 309        struct mixart_msg request;
 310
 311        if((err = mixart_enum_connectors(mgr)) < 0) return err;
 312
 313        if((err = mixart_enum_physio(mgr)) < 0) return err;
 314
 315        /* send a synchro command to card (necessary to do this before first MSG_STREAM_START_STREAM_GRP_PACKET) */
 316        /* though why not here */
 317        request.message_id = MSG_SYSTEM_SEND_SYNCHRO_CMD;
 318        request.uid = (struct mixart_uid){0,0};
 319        request.data = NULL;
 320        request.size = 0;
 321        /* this command has no data. response is a 32 bit status */
 322        err = snd_mixart_send_msg(mgr, &request, sizeof(k), &k);
 323        if( (err < 0) || (k != 0) ) {
 324                snd_printk(KERN_ERR "error MSG_SYSTEM_SEND_SYNCHRO_CMD\n");
 325                return err == 0 ? -EINVAL : err;
 326        }
 327
 328        return 0;
 329}
 330
 331
 332/* firmware base addresses (when hard coded) */
 333#define MIXART_MOTHERBOARD_XLX_BASE_ADDRESS   0x00600000
 334
 335static int mixart_dsp_load(struct mixart_mgr* mgr, int index, const struct firmware *dsp)
 336{
 337        int           err, card_index;
 338        u32           status_xilinx, status_elf, status_daught;
 339        u32           val;
 340
 341        /* read motherboard xilinx status */
 342        status_xilinx = readl_be( MIXART_MEM( mgr,MIXART_PSEUDOREG_MXLX_STATUS_OFFSET ));
 343        /* read elf status */
 344        status_elf = readl_be( MIXART_MEM( mgr,MIXART_PSEUDOREG_ELF_STATUS_OFFSET ));
 345        /* read daughterboard xilinx status */
 346        status_daught = readl_be( MIXART_MEM( mgr,MIXART_PSEUDOREG_DXLX_STATUS_OFFSET ));
 347
 348        /* motherboard xilinx status 5 will say that the board is performing a reset */
 349        if (status_xilinx == 5) {
 350                snd_printk(KERN_ERR "miXart is resetting !\n");
 351                return -EAGAIN; /* try again later */
 352        }
 353
 354        switch (index)   {
 355        case MIXART_MOTHERBOARD_XLX_INDEX:
 356
 357                /* xilinx already loaded ? */ 
 358                if (status_xilinx == 4) {
 359                        snd_printk(KERN_DEBUG "xilinx is already loaded !\n");
 360                        return 0;
 361                }
 362                /* the status should be 0 == "idle" */
 363                if (status_xilinx != 0) {
 364                        snd_printk(KERN_ERR "xilinx load error ! status = %d\n",
 365                                   status_xilinx);
 366                        return -EIO; /* modprob -r may help ? */
 367                }
 368
 369                /* check xilinx validity */
 370                if (((u32*)(dsp->data))[0] == 0xffffffff)
 371                        return -EINVAL;
 372                if (dsp->size % 4)
 373                        return -EINVAL;
 374
 375                /* set xilinx status to copying */
 376                writel_be( 1, MIXART_MEM( mgr, MIXART_PSEUDOREG_MXLX_STATUS_OFFSET ));
 377
 378                /* setup xilinx base address */
 379                writel_be( MIXART_MOTHERBOARD_XLX_BASE_ADDRESS, MIXART_MEM( mgr,MIXART_PSEUDOREG_MXLX_BASE_ADDR_OFFSET ));
 380                /* setup code size for xilinx file */
 381                writel_be( dsp->size, MIXART_MEM( mgr, MIXART_PSEUDOREG_MXLX_SIZE_OFFSET ));
 382
 383                /* copy xilinx code */
 384                memcpy_toio(  MIXART_MEM( mgr, MIXART_MOTHERBOARD_XLX_BASE_ADDRESS),  dsp->data,  dsp->size);
 385    
 386                /* set xilinx status to copy finished */
 387                writel_be( 2, MIXART_MEM( mgr, MIXART_PSEUDOREG_MXLX_STATUS_OFFSET ));
 388
 389                /* return, because no further processing needed */
 390                return 0;
 391
 392        case MIXART_MOTHERBOARD_ELF_INDEX:
 393
 394                if (status_elf == 4) {
 395                        snd_printk(KERN_DEBUG "elf file already loaded !\n");
 396                        return 0;
 397                }
 398
 399                /* the status should be 0 == "idle" */
 400                if (status_elf != 0) {
 401                        snd_printk(KERN_ERR "elf load error ! status = %d\n",
 402                                   status_elf);
 403                        return -EIO; /* modprob -r may help ? */
 404                }
 405
 406                /* wait for xilinx status == 4 */
 407                err = mixart_wait_nice_for_register_value( mgr, MIXART_PSEUDOREG_MXLX_STATUS_OFFSET, 1, 4, 500); /* 5sec */
 408                if (err < 0) {
 409                        snd_printk(KERN_ERR "xilinx was not loaded or "
 410                                   "could not be started\n");
 411                        return err;
 412                }
 413
 414                /* init some data on the card */
 415                writel_be( 0, MIXART_MEM( mgr, MIXART_PSEUDOREG_BOARDNUMBER ) ); /* set miXart boardnumber to 0 */
 416                writel_be( 0, MIXART_MEM( mgr, MIXART_FLOWTABLE_PTR ) );         /* reset pointer to flow table on miXart */
 417
 418                /* set elf status to copying */
 419                writel_be( 1, MIXART_MEM( mgr, MIXART_PSEUDOREG_ELF_STATUS_OFFSET ));
 420
 421                /* process the copying of the elf packets */
 422                err = mixart_load_elf( mgr, dsp );
 423                if (err < 0) return err;
 424
 425                /* set elf status to copy finished */
 426                writel_be( 2, MIXART_MEM( mgr, MIXART_PSEUDOREG_ELF_STATUS_OFFSET ));
 427
 428                /* wait for elf status == 4 */
 429                err = mixart_wait_nice_for_register_value( mgr, MIXART_PSEUDOREG_ELF_STATUS_OFFSET, 1, 4, 300); /* 3sec */
 430                if (err < 0) {
 431                        snd_printk(KERN_ERR "elf could not be started\n");
 432                        return err;
 433                }
 434
 435                /* miXart waits at this point on the pointer to the flow table */
 436                writel_be( (u32)mgr->flowinfo.addr, MIXART_MEM( mgr, MIXART_FLOWTABLE_PTR ) ); /* give pointer of flow table to miXart */
 437
 438                return 0;  /* return, another xilinx file has to be loaded before */
 439
 440        case MIXART_AESEBUBOARD_XLX_INDEX:
 441        default:
 442
 443                /* elf and xilinx should be loaded */
 444                if (status_elf != 4 || status_xilinx != 4) {
 445                        printk(KERN_ERR "xilinx or elf not "
 446                               "successfully loaded\n");
 447                        return -EIO; /* modprob -r may help ? */
 448                }
 449
 450                /* wait for daughter detection != 0 */
 451                err = mixart_wait_nice_for_register_value( mgr, MIXART_PSEUDOREG_DBRD_PRESENCE_OFFSET, 0, 0, 30); /* 300msec */
 452                if (err < 0) {
 453                        snd_printk(KERN_ERR "error starting elf file\n");
 454                        return err;
 455                }
 456
 457                /* the board type can now be retrieved */
 458                mgr->board_type = (DAUGHTER_TYPE_MASK & readl_be( MIXART_MEM( mgr, MIXART_PSEUDOREG_DBRD_TYPE_OFFSET)));
 459
 460                if (mgr->board_type == MIXART_DAUGHTER_TYPE_NONE)
 461                        break;  /* no daughter board; the file does not have to be loaded, continue after the switch */
 462
 463                /* only if aesebu daughter board presence (elf code must run)  */ 
 464                if (mgr->board_type != MIXART_DAUGHTER_TYPE_AES )
 465                        return -EINVAL;
 466
 467                /* daughter should be idle */
 468                if (status_daught != 0) {
 469                        printk(KERN_ERR "daughter load error ! status = %d\n",
 470                               status_daught);
 471                        return -EIO; /* modprob -r may help ? */
 472                }
 473 
 474                /* check daughterboard xilinx validity */
 475                if (((u32*)(dsp->data))[0] == 0xffffffff)
 476                        return -EINVAL;
 477                if (dsp->size % 4)
 478                        return -EINVAL;
 479
 480                /* inform mixart about the size of the file */
 481                writel_be( dsp->size, MIXART_MEM( mgr, MIXART_PSEUDOREG_DXLX_SIZE_OFFSET ));
 482
 483                /* set daughterboard status to 1 */
 484                writel_be( 1, MIXART_MEM( mgr, MIXART_PSEUDOREG_DXLX_STATUS_OFFSET ));
 485
 486                /* wait for status == 2 */
 487                err = mixart_wait_nice_for_register_value( mgr, MIXART_PSEUDOREG_DXLX_STATUS_OFFSET, 1, 2, 30); /* 300msec */
 488                if (err < 0) {
 489                        snd_printk(KERN_ERR "daughter board load error\n");
 490                        return err;
 491                }
 492
 493                /* get the address where to write the file */
 494                val = readl_be( MIXART_MEM( mgr, MIXART_PSEUDOREG_DXLX_BASE_ADDR_OFFSET ));
 495                if (!val)
 496                        return -EINVAL;
 497
 498                /* copy daughterboard xilinx code */
 499                memcpy_toio(  MIXART_MEM( mgr, val),  dsp->data,  dsp->size);
 500
 501                /* set daughterboard status to 4 */
 502                writel_be( 4, MIXART_MEM( mgr, MIXART_PSEUDOREG_DXLX_STATUS_OFFSET ));
 503
 504                /* continue with init */
 505                break;
 506        } /* end of switch file index*/
 507
 508        /* wait for daughter status == 3 */
 509        err = mixart_wait_nice_for_register_value( mgr, MIXART_PSEUDOREG_DXLX_STATUS_OFFSET, 1, 3, 300); /* 3sec */
 510        if (err < 0) {
 511                snd_printk(KERN_ERR
 512                           "daughter board could not be initialised\n");
 513                return err;
 514        }
 515
 516        /* init mailbox (communication with embedded) */
 517        snd_mixart_init_mailbox(mgr);
 518
 519        /* first communication with embedded */
 520        err = mixart_first_init(mgr);
 521        if (err < 0) {
 522                snd_printk(KERN_ERR "miXart could not be set up\n");
 523                return err;
 524        }
 525
 526        /* create devices and mixer in accordance with HW options*/
 527        for (card_index = 0; card_index < mgr->num_cards; card_index++) {
 528                struct snd_mixart *chip = mgr->chip[card_index];
 529
 530                if ((err = snd_mixart_create_pcm(chip)) < 0)
 531                        return err;
 532
 533                if (card_index == 0) {
 534                        if ((err = snd_mixart_create_mixer(chip->mgr)) < 0)
 535                                return err;
 536                }
 537
 538                if ((err = snd_card_register(chip->card)) < 0)
 539                        return err;
 540        };
 541
 542        snd_printdd("miXart firmware downloaded and successfully set up\n");
 543
 544        return 0;
 545}
 546
 547
 548#if defined(CONFIG_FW_LOADER) || defined(CONFIG_FW_LOADER_MODULE)
 549#if !defined(CONFIG_USE_MIXARTLOADER) && !defined(CONFIG_SND_MIXART) /* built-in kernel */
 550#define SND_MIXART_FW_LOADER    /* use the standard firmware loader */
 551#endif
 552#endif
 553
 554#ifdef SND_MIXART_FW_LOADER
 555
 556int snd_mixart_setup_firmware(struct mixart_mgr *mgr)
 557{
 558        static char *fw_files[3] = {
 559                "miXart8.xlx", "miXart8.elf", "miXart8AES.xlx"
 560        };
 561        char path[32];
 562
 563        const struct firmware *fw_entry;
 564        int i, err;
 565
 566        for (i = 0; i < 3; i++) {
 567                sprintf(path, "mixart/%s", fw_files[i]);
 568                if (request_firmware(&fw_entry, path, &mgr->pci->dev)) {
 569                        snd_printk(KERN_ERR "miXart: can't load firmware %s\n", path);
 570                        return -ENOENT;
 571                }
 572                /* fake hwdep dsp record */
 573                err = mixart_dsp_load(mgr, i, fw_entry);
 574                release_firmware(fw_entry);
 575                if (err < 0)
 576                        return err;
 577                mgr->dsp_loaded |= 1 << i;
 578        }
 579        return 0;
 580}
 581
 582MODULE_FIRMWARE("mixart/miXart8.xlx");
 583MODULE_FIRMWARE("mixart/miXart8.elf");
 584MODULE_FIRMWARE("mixart/miXart8AES.xlx");
 585
 586#else /* old style firmware loading */
 587
 588/* miXart hwdep interface id string */
 589#define SND_MIXART_HWDEP_ID       "miXart Loader"
 590
 591static int mixart_hwdep_dsp_status(struct snd_hwdep *hw,
 592                                   struct snd_hwdep_dsp_status *info)
 593{
 594        struct mixart_mgr *mgr = hw->private_data;
 595
 596        strcpy(info->id, "miXart");
 597        info->num_dsps = MIXART_HARDW_FILES_MAX_INDEX;
 598
 599        if (mgr->dsp_loaded & (1 <<  MIXART_MOTHERBOARD_ELF_INDEX))
 600                info->chip_ready = 1;
 601
 602        info->version = MIXART_DRIVER_VERSION;
 603        return 0;
 604}
 605
 606static int mixart_hwdep_dsp_load(struct snd_hwdep *hw,
 607                                 struct snd_hwdep_dsp_image *dsp)
 608{
 609        struct mixart_mgr* mgr = hw->private_data;
 610        struct firmware fw;
 611        int err;
 612
 613        fw.size = dsp->length;
 614        fw.data = vmalloc(dsp->length);
 615        if (! fw.data) {
 616                snd_printk(KERN_ERR "miXart: cannot allocate image size %d\n",
 617                           (int)dsp->length);
 618                return -ENOMEM;
 619        }
 620        if (copy_from_user((void *) fw.data, dsp->image, dsp->length)) {
 621                vfree(fw.data);
 622                return -EFAULT;
 623        }
 624        err = mixart_dsp_load(mgr, dsp->index, &fw);
 625        vfree(fw.data);
 626        if (err < 0)
 627                return err;
 628        mgr->dsp_loaded |= 1 << dsp->index;
 629        return err;
 630}
 631
 632int snd_mixart_setup_firmware(struct mixart_mgr *mgr)
 633{
 634        int err;
 635        struct snd_hwdep *hw;
 636
 637        /* only create hwdep interface for first cardX (see "index" module parameter)*/
 638        if ((err = snd_hwdep_new(mgr->chip[0]->card, SND_MIXART_HWDEP_ID, 0, &hw)) < 0)
 639                return err;
 640
 641        hw->iface = SNDRV_HWDEP_IFACE_MIXART;
 642        hw->private_data = mgr;
 643        hw->ops.dsp_status = mixart_hwdep_dsp_status;
 644        hw->ops.dsp_load = mixart_hwdep_dsp_load;
 645        hw->exclusive = 1;
 646        sprintf(hw->name,  SND_MIXART_HWDEP_ID);
 647        mgr->dsp_loaded = 0;
 648
 649        return snd_card_register(mgr->chip[0]->card);
 650}
 651
 652#endif /* SND_MIXART_FW_LOADER */
 653