sound/pci/pcxhr/pcxhr_hwdep.c

   1 /*
   2  * Driver for Digigram pcxhr compatible soundcards
   3  *
   4  * hwdep device manager
   5  *
   6  * Copyright (c) 2004 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/vmalloc.h>
  26 #include <linux/firmware.h>
  27 #include <linux/pci.h>
  28 #include <asm/io.h>
  29 #include <sound/core.h>
  30 #include <sound/hwdep.h>
  31 #include "pcxhr.h"
  32 #include "pcxhr_mixer.h"
  33 #include "pcxhr_hwdep.h"
  34 #include "pcxhr_core.h"
  35
  36
  37 #if defined(CONFIG_FW_LOADER) || defined(CONFIG_FW_LOADER_MODULE)
  38 #if !defined(CONFIG_USE_PCXHRLOADER) && !defined(CONFIG_SND_PCXHR) /* built-in kernel */
  39 #define SND_PCXHR_FW_LOADER     /* use the standard firmware loader */
  40 #endif
  41 #endif
  42
  43
  44 /*
  45  * get basic information and init pcxhr card
  46  */
  47
  48 static int pcxhr_init_board(struct pcxhr_mgr *mgr)
  49 {
  50         int err;
  51         struct pcxhr_rmh rmh;
  52         int card_streams;
  53
  54         /* calc the number of all streams used */
  55         if (mgr->mono_capture)
  56                 card_streams = mgr->capture_chips * 2;
  57         else
  58                 card_streams = mgr->capture_chips;
  59         card_streams += mgr->playback_chips * PCXHR_PLAYBACK_STREAMS;
  60
  61         /* enable interrupts */
  62         pcxhr_enable_dsp(mgr);
  63
  64         pcxhr_init_rmh(&rmh, CMD_SUPPORTED);
  65         err = pcxhr_send_msg(mgr, &rmh);
  66         if (err)
  67                 return err;
  68         /* test 8 or 12 phys out */
  69         snd_assert((rmh.stat[0] & MASK_FIRST_FIELD) == mgr->playback_chips*2,
  70                    return -EINVAL);
  71         /* test 8 or 2 phys in */
  72         snd_assert(((rmh.stat[0] >> (2*FIELD_SIZE)) & MASK_FIRST_FIELD) ==
  73                    mgr->capture_chips * 2, return -EINVAL);
  74         /* test max nb substream per board */
  75         snd_assert((rmh.stat[1] & 0x5F) >= card_streams, return -EINVAL);
  76         /* test max nb substream per pipe */
  77         snd_assert(((rmh.stat[1]>>7)&0x5F) >= PCXHR_PLAYBACK_STREAMS, return -EINVAL);
  78
  79         pcxhr_init_rmh(&rmh, CMD_VERSION);
  80         /* firmware num for DSP */
  81         rmh.cmd[0] |= mgr->firmware_num;
  82         /* transfer granularity in samples (should be multiple of 48) */
  83         rmh.cmd[1] = (1<<23) + PCXHR_GRANULARITY;
  84         rmh.cmd_len = 2;
  85         err = pcxhr_send_msg(mgr, &rmh);
  86         if (err)
  87                 return err;
  88         snd_printdd("PCXHR DSP version is %d.%d.%d\n",
  89                     (rmh.stat[0]>>16)&0xff, (rmh.stat[0]>>8)&0xff, rmh.stat[0]&0xff);
  90         mgr->dsp_version = rmh.stat[0];
  91
  92         /* get options */
  93         pcxhr_init_rmh(&rmh, CMD_ACCESS_IO_READ);
  94         rmh.cmd[0] |= IO_NUM_REG_STATUS;
  95         rmh.cmd[1]  = REG_STATUS_OPTIONS;
  96         rmh.cmd_len = 2;
  97         err = pcxhr_send_msg(mgr, &rmh);
  98         if (err)
  99                 return err;
 100
 101         if ((rmh.stat[1] & REG_STATUS_OPT_DAUGHTER_MASK) == REG_STATUS_OPT_ANALOG_BOARD)
 102                 mgr->board_has_analog = 1;      /* analog addon board available */
 103         else
 104                 /* analog addon board not available -> no support for instance */
 105                 return -EINVAL;
 106
 107         /* unmute inputs */
 108         err = pcxhr_write_io_num_reg_cont(mgr, REG_CONT_UNMUTE_INPUTS,
 109                                           REG_CONT_UNMUTE_INPUTS, NULL);
 110         if (err)
 111                 return err;
 112         /* unmute outputs */
 113         pcxhr_init_rmh(&rmh, CMD_ACCESS_IO_READ); /* a write to IO_NUM_REG_MUTE_OUT mutes! */
 114         rmh.cmd[0] |= IO_NUM_REG_MUTE_OUT;
 115         err = pcxhr_send_msg(mgr, &rmh);
 116         return err;
 117 }
 118
 119 void pcxhr_reset_board(struct pcxhr_mgr *mgr)
 120 {
 121         struct pcxhr_rmh rmh;
 122
 123         if (mgr->dsp_loaded & (1 << PCXHR_FIRMWARE_DSP_MAIN_INDEX)) {
 124                 /* mute outputs */
 125                 /* a read to IO_NUM_REG_MUTE_OUT register unmutes! */
 126                 pcxhr_init_rmh(&rmh, CMD_ACCESS_IO_WRITE);
 127                 rmh.cmd[0] |= IO_NUM_REG_MUTE_OUT;
 128                 pcxhr_send_msg(mgr, &rmh);
 129                 /* mute inputs */
 130                 pcxhr_write_io_num_reg_cont(mgr, REG_CONT_UNMUTE_INPUTS, 0, NULL);
 131         }
 132         /* reset pcxhr dsp */
 133         if (mgr->dsp_loaded & ( 1 << PCXHR_FIRMWARE_DSP_EPRM_INDEX))
 134                 pcxhr_reset_dsp(mgr);
 135         /* reset second xilinx */
 136         if (mgr->dsp_loaded & ( 1 << PCXHR_FIRMWARE_XLX_COM_INDEX))
 137                 pcxhr_reset_xilinx_com(mgr);
 138         return;
 139 }
 140
 141
 142 /*
 143  *  allocate a playback/capture pipe (pcmp0/pcmc0)
 144  */
 145 static int pcxhr_dsp_allocate_pipe( struct pcxhr_mgr *mgr, struct pcxhr_pipe *pipe,
 146                                     int is_capture, int pin)
 147 {
 148         int stream_count, audio_count;
 149         int err;
 150         struct pcxhr_rmh rmh;
 151
 152         if (is_capture) {
 153                 stream_count = 1;
 154                 if (mgr->mono_capture)
 155                         audio_count = 1;
 156                 else
 157                         audio_count = 2;
 158         } else {
 159                 stream_count = PCXHR_PLAYBACK_STREAMS;
 160                 audio_count = 2;        /* always stereo */
 161         }
 162         snd_printdd("snd_add_ref_pipe pin(%d) pcm%c0\n", pin, is_capture ? 'c' : 'p');
 163         pipe->is_capture = is_capture;
 164         pipe->first_audio = pin;
 165         /* define pipe (P_PCM_ONLY_MASK (0x020000) is not necessary) */
 166         pcxhr_init_rmh(&rmh, CMD_RES_PIPE);
 167         pcxhr_set_pipe_cmd_params(&rmh, is_capture, pin, audio_count, stream_count);
 168         err = pcxhr_send_msg(mgr, &rmh);
 169         if (err < 0) {
 170                 snd_printk(KERN_ERR "error pipe allocation (CMD_RES_PIPE) err=%x!\n", err );
 171                 return err;
 172         }
 173         pipe->status = PCXHR_PIPE_DEFINED;
 174
 175         return 0;
 176 }
 177
 178 /*
 179  *  free playback/capture pipe (pcmp0/pcmc0)
 180  */
 181 #if 0
 182 static int pcxhr_dsp_free_pipe( struct pcxhr_mgr *mgr, struct pcxhr_pipe *pipe)
 183 {
 184         struct pcxhr_rmh rmh;
 185         int capture_mask = 0;
 186         int playback_mask = 0;
 187         int err = 0;
 188
 189         if (pipe->is_capture)
 190                 capture_mask  = (1 << pipe->first_audio);
 191         else
 192                 playback_mask = (1 << pipe->first_audio);
 193
 194         /* stop one pipe */
 195         err = pcxhr_set_pipe_state(mgr, playback_mask, capture_mask, 0);
 196         if (err < 0)
 197                 snd_printk(KERN_ERR "error stopping pipe!\n");
 198         /* release the pipe */
 199         pcxhr_init_rmh(&rmh, CMD_FREE_PIPE);
 200         pcxhr_set_pipe_cmd_params(&rmh, pipe->is_capture, pipe->first_audio, 0, 0);
 201         err = pcxhr_send_msg(mgr, &rmh);
 202         if (err < 0)
 203                 snd_printk(KERN_ERR "error pipe release (CMD_FREE_PIPE) err(%x)\n", err);
 204         pipe->status = PCXHR_PIPE_UNDEFINED;
 205         return err;
 206 }
 207 #endif
 208
 209
 210 static int pcxhr_config_pipes(struct pcxhr_mgr *mgr)
 211 {
 212         int err, i, j;
 213         struct snd_pcxhr *chip;
 214         struct pcxhr_pipe *pipe;
 215
 216         /* allocate the pipes on the dsp */
 217         for (i = 0; i < mgr->num_cards; i++) {
 218                 chip = mgr->chip[i];
 219                 if (chip->nb_streams_play) {
 220                         pipe = &chip->playback_pipe;
 221                         err = pcxhr_dsp_allocate_pipe( mgr, pipe, 0, i*2);
 222                         if (err)
 223                                 return err;
 224                         for(j = 0; j < chip->nb_streams_play; j++)
 225                                 chip->playback_stream[j].pipe = pipe;
 226                 }
 227                 for (j = 0; j < chip->nb_streams_capt; j++) {
 228                         pipe = &chip->capture_pipe[j];
 229                         err = pcxhr_dsp_allocate_pipe(mgr, pipe, 1, i*2 + j);
 230                         if (err)
 231                                 return err;
 232                         chip->capture_stream[j].pipe = pipe;
 233                 }
 234         }
 235         return 0;
 236 }
 237
 238 static int pcxhr_start_pipes(struct pcxhr_mgr *mgr)
 239 {
 240         int i, j;
 241         struct snd_pcxhr *chip;
 242         int playback_mask = 0;
 243         int capture_mask = 0;
 244
 245         /* start all the pipes on the dsp */
 246         for (i = 0; i < mgr->num_cards; i++) {
 247                 chip = mgr->chip[i];
 248                 if (chip->nb_streams_play)
 249                         playback_mask |= (1 << chip->playback_pipe.first_audio);
 250                 for (j = 0; j < chip->nb_streams_capt; j++)
 251                         capture_mask |= (1 << chip->capture_pipe[j].first_audio);
 252         }
 253         return pcxhr_set_pipe_state(mgr, playback_mask, capture_mask, 1);
 254 }
 255
 256
 257 static int pcxhr_dsp_load(struct pcxhr_mgr *mgr, int index, const struct firmware *dsp)
 258 {
 259         int err, card_index;
 260
 261         snd_printdd("loading dsp [%d] size = %Zd\n", index, dsp->size);
 262
 263         switch (index) {
 264         case PCXHR_FIRMWARE_XLX_INT_INDEX:
 265                 pcxhr_reset_xilinx_com(mgr);
 266                 return pcxhr_load_xilinx_binary(mgr, dsp, 0);
 267
 268         case PCXHR_FIRMWARE_XLX_COM_INDEX:
 269                 pcxhr_reset_xilinx_com(mgr);
 270                 return pcxhr_load_xilinx_binary(mgr, dsp, 1);
 271
 272         case PCXHR_FIRMWARE_DSP_EPRM_INDEX:
 273                 pcxhr_reset_dsp(mgr);
 274                 return pcxhr_load_eeprom_binary(mgr, dsp);
 275
 276         case PCXHR_FIRMWARE_DSP_BOOT_INDEX:
 277                 return pcxhr_load_boot_binary(mgr, dsp);
 278
 279         case PCXHR_FIRMWARE_DSP_MAIN_INDEX:
 280                 err = pcxhr_load_dsp_binary(mgr, dsp);
 281                 if (err)
 282                         return err;
 283                 break;  /* continue with first init */
 284         default:
 285                 snd_printk(KERN_ERR "wrong file index\n");
 286                 return -EFAULT;
 287         } /* end of switch file index*/
 288
 289         /* first communication with embedded */
 290         err = pcxhr_init_board(mgr);
 291         if (err < 0) {
 292                 snd_printk(KERN_ERR "pcxhr could not be set up\n");
 293                 return err;
 294         }
 295         err = pcxhr_config_pipes(mgr);
 296         if (err < 0) {
 297                 snd_printk(KERN_ERR "pcxhr pipes could not be set up\n");
 298                 return err;
 299         }
 300         /* create devices and mixer in accordance with HW options*/
 301         for (card_index = 0; card_index < mgr->num_cards; card_index++) {
 302                 struct snd_pcxhr *chip = mgr->chip[card_index];
 303
 304                 if ((err = pcxhr_create_pcm(chip)) < 0)
 305                         return err;
 306
 307                 if (card_index == 0) {
 308                         if ((err = pcxhr_create_mixer(chip->mgr)) < 0)
 309                                 return err;
 310                 }
 311                 if ((err = snd_card_register(chip->card)) < 0)
 312                         return err;
 313         }
 314         err = pcxhr_start_pipes(mgr);
 315         if (err < 0) {
 316                 snd_printk(KERN_ERR "pcxhr pipes could not be started\n");
 317                 return err;
 318         }
 319         snd_printdd("pcxhr firmware downloaded and successfully set up\n");
 320
 321         return 0;
 322 }
 323
 324 /*
 325  * fw loader entry
 326  */
 327 #ifdef SND_PCXHR_FW_LOADER
 328
 329 int pcxhr_setup_firmware(struct pcxhr_mgr *mgr)
 330 {
 331         static char *fw_files[5] = {
 332                 "xi_1_882.dat",
 333                 "xc_1_882.dat",
 334                 "e321_512.e56",
 335                 "b321_512.b56",
 336                 "d321_512.d56"
 337         };
 338         char path[32];
 339
 340         const struct firmware *fw_entry;
 341         int i, err;
 342
 343         for (i = 0; i < ARRAY_SIZE(fw_files); i++) {
 344                 sprintf(path, "pcxhr/%s", fw_files[i]);
 345                 if (request_firmware(&fw_entry, path, &mgr->pci->dev)) {
 346                         snd_printk(KERN_ERR "pcxhr: can't load firmware %s\n", path);
 347                         return -ENOENT;
 348                 }
 349                 /* fake hwdep dsp record */
 350                 err = pcxhr_dsp_load(mgr, i, fw_entry);
 351                 release_firmware(fw_entry);
 352                 if (err < 0)
 353                         return err;
 354                 mgr->dsp_loaded |= 1 << i;
 355         }
 356         return 0;
 357 }
 358
 359 #else /* old style firmware loading */
 360
 361 /* pcxhr hwdep interface id string */
 362 #define PCXHR_HWDEP_ID       "pcxhr loader"
 363
 364
 365 static int pcxhr_hwdep_dsp_status(struct snd_hwdep *hw,
 366                                   struct snd_hwdep_dsp_status *info)
 367 {
 368         strcpy(info->id, "pcxhr");
 369         info->num_dsps = PCXHR_FIRMWARE_FILES_MAX_INDEX;
 370
 371         if (hw->dsp_loaded & (1 << PCXHR_FIRMWARE_DSP_MAIN_INDEX))
 372                 info->chip_ready = 1;
 373
 374         info->version = PCXHR_DRIVER_VERSION;
 375         return 0;
 376 }
 377
 378 static int pcxhr_hwdep_dsp_load(struct snd_hwdep *hw,
 379                                 struct snd_hwdep_dsp_image *dsp)
 380 {
 381         struct pcxhr_mgr *mgr = hw->private_data;
 382         int err;
 383         struct firmware fw;
 384
 385         fw.size = dsp->length;
 386         fw.data = vmalloc(fw.size);
 387         if (! fw.data) {
 388                 snd_printk(KERN_ERR "pcxhr: cannot allocate dsp image (%lu bytes)\n",
 389                            (unsigned long)fw.size);
 390                 return -ENOMEM;
 391         }
 392         if (copy_from_user(fw.data, dsp->image, dsp->length)) {
 393                 vfree(fw.data);
 394                 return -EFAULT;
 395         }
 396         err = pcxhr_dsp_load(mgr, dsp->index, &fw);
 397         vfree(fw.data);
 398         if (err < 0)
 399                 return err;
 400         mgr->dsp_loaded |= 1 << dsp->index;
 401         return 0;
 402 }
 403
 404 static int pcxhr_hwdep_open(struct snd_hwdep *hw, struct file *file)
 405 {
 406         return 0;
 407 }
 408
 409 static int pcxhr_hwdep_release(struct snd_hwdep *hw, struct file *file)
 410 {
 411         return 0;
 412 }
 413
 414 int pcxhr_setup_firmware(struct pcxhr_mgr *mgr)
 415 {
 416         int err;
 417         struct snd_hwdep *hw;
 418
 419         /* only create hwdep interface for first cardX (see "index" module parameter)*/
 420         if ((err = snd_hwdep_new(mgr->chip[0]->card, PCXHR_HWDEP_ID, 0, &hw)) < 0)
 421                 return err;
 422
 423         hw->iface = SNDRV_HWDEP_IFACE_PCXHR;
 424         hw->private_data = mgr;
 425         hw->ops.open = pcxhr_hwdep_open;
 426         hw->ops.release = pcxhr_hwdep_release;
 427         hw->ops.dsp_status = pcxhr_hwdep_dsp_status;
 428         hw->ops.dsp_load = pcxhr_hwdep_dsp_load;
 429         hw->exclusive = 1;
 430         mgr->dsp_loaded = 0;
 431         sprintf(hw->name, PCXHR_HWDEP_ID);
 432
 433         if ((err = snd_card_register(mgr->chip[0]->card)) < 0)
 434                 return err;
 435         return 0;
 436 }
 437
 438 #endif /* SND_PCXHR_FW_LOADER */