release/src-rt-6.x.4708/linux/linux-2.6.36/sound/pcmcia/vx/vxpocket.c

   1 /*
   2  * Driver for Digigram VXpocket V2/440 soundcards
   3  *
   4  * Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de>
   5  *
   6  *   This program is free software; you can redistribute it and/or modify
   7  *   it under the terms of the GNU General Public License as published by
   8  *   the Free Software Foundation; either version 2 of the License, or
   9  *   (at your option) any later version.
  10  *
  11  *   This program is distributed in the hope that it will be useful,
  12  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *   GNU General Public License for more details.
  15  *
  16  *   You should have received a copy of the GNU General Public License
  17  *   along with this program; if not, write to the Free Software
  18  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  19  */
  20
  21
  22 #include <linux/init.h>
  23 #include <linux/moduleparam.h>
  24 #include <linux/slab.h>
  25 #include <sound/core.h>
  26 #include "vxpocket.h"
  27 #include <pcmcia/ciscode.h>
  28 #include <pcmcia/cisreg.h>
  29 #include <sound/initval.h>
  30 #include <sound/tlv.h>
  31
  32 /*
  33  */
  34
  35 MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>");
  36 MODULE_DESCRIPTION("Digigram VXPocket");
  37 MODULE_LICENSE("GPL");
  38 MODULE_SUPPORTED_DEVICE("{{Digigram,VXPocket},{Digigram,VXPocket440}}");
  39
  40 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
  41 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
  42 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;      /* Enable switches */
  43 static int ibl[SNDRV_CARDS];
  44
  45 module_param_array(index, int, NULL, 0444);
  46 MODULE_PARM_DESC(index, "Index value for VXPocket soundcard.");
  47 module_param_array(id, charp, NULL, 0444);
  48 MODULE_PARM_DESC(id, "ID string for VXPocket soundcard.");
  49 module_param_array(enable, bool, NULL, 0444);
  50 MODULE_PARM_DESC(enable, "Enable VXPocket soundcard.");
  51 module_param_array(ibl, int, NULL, 0444);
  52 MODULE_PARM_DESC(ibl, "Capture IBL size for VXPocket soundcard.");
  53
  54
  55 /*
  56  */
  57
  58 static unsigned int card_alloc;
  59
  60
  61 /*
  62  */
  63 static void vxpocket_release(struct pcmcia_device *link)
  64 {
  65         pcmcia_disable_device(link);
  66 }
  67
  68 /*
  69  * destructor, called from snd_card_free_when_closed()
  70  */
  71 static int snd_vxpocket_dev_free(struct snd_device *device)
  72 {
  73         struct vx_core *chip = device->device_data;
  74
  75         snd_vx_free_firmware(chip);
  76         kfree(chip);
  77         return 0;
  78 }
  79
  80
  81 /*
  82  * Hardware information
  83  */
  84
  85 /* VX-pocket V2
  86  *
  87  * 1 DSP, 1 sync UER
  88  * 1 programmable clock (NIY)
  89  * 1 stereo analog input (line/micro)
  90  * 1 stereo analog output
  91  * Only output levels can be modified
  92  */
  93
  94 static const DECLARE_TLV_DB_SCALE(db_scale_old_vol, -11350, 50, 0);
  95
  96 static struct snd_vx_hardware vxpocket_hw = {
  97         .name = "VXPocket",
  98         .type = VX_TYPE_VXPOCKET,
  99
 100         /* hardware specs */
 101         .num_codecs = 1,
 102         .num_ins = 1,
 103         .num_outs = 1,
 104         .output_level_max = VX_ANALOG_OUT_LEVEL_MAX,
 105         .output_level_db_scale = db_scale_old_vol,
 106 };
 107
 108 /* VX-pocket 440
 109  *
 110  * 1 DSP, 1 sync UER, 1 sync World Clock (NIY)
 111  * SMPTE (NIY)
 112  * 2 stereo analog input (line/micro)
 113  * 2 stereo analog output
 114  * Only output levels can be modified
 115  * UER, but only for the first two inputs and outputs.
 116  */
 117
 118 static struct snd_vx_hardware vxp440_hw = {
 119         .name = "VXPocket440",
 120         .type = VX_TYPE_VXP440,
 121
 122         /* hardware specs */
 123         .num_codecs = 2,
 124         .num_ins = 2,
 125         .num_outs = 2,
 126         .output_level_max = VX_ANALOG_OUT_LEVEL_MAX,
 127         .output_level_db_scale = db_scale_old_vol,
 128 };
 129
 130
 131 /*
 132  * create vxpocket instance
 133  */
 134 static int snd_vxpocket_new(struct snd_card *card, int ibl,
 135                             struct pcmcia_device *link,
 136                             struct snd_vxpocket **chip_ret)
 137 {
 138         struct vx_core *chip;
 139         struct snd_vxpocket *vxp;
 140         static struct snd_device_ops ops = {
 141                 .dev_free =     snd_vxpocket_dev_free,
 142         };
 143         int err;
 144
 145         chip = snd_vx_create(card, &vxpocket_hw, &snd_vxpocket_ops,
 146                              sizeof(struct snd_vxpocket) - sizeof(struct vx_core));
 147         if (!chip)
 148                 return -ENOMEM;
 149
 150         err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
 151         if (err < 0) {
 152                 kfree(chip);
 153                 return err;
 154         }
 155         chip->ibl.size = ibl;
 156
 157         vxp = (struct snd_vxpocket *)chip;
 158
 159         vxp->p_dev = link;
 160         link->priv = chip;
 161
 162         link->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
 163         link->resource[0]->end = 16;
 164
 165         link->conf.Attributes = CONF_ENABLE_IRQ;
 166         link->conf.IntType = INT_MEMORY_AND_IO;
 167         link->conf.ConfigIndex = 1;
 168         link->conf.Present = PRESENT_OPTION;
 169
 170         *chip_ret = vxp;
 171         return 0;
 172 }
 173
 174
 175 /**
 176  * snd_vxpocket_assign_resources - initialize the hardware and card instance.
 177  * @port: i/o port for the card
 178  * @irq: irq number for the card
 179  *
 180  * this function assigns the specified port and irq, boot the card,
 181  * create pcm and control instances, and initialize the rest hardware.
 182  *
 183  * returns 0 if successful, or a negative error code.
 184  */
 185 static int snd_vxpocket_assign_resources(struct vx_core *chip, int port, int irq)
 186 {
 187         int err;
 188         struct snd_card *card = chip->card;
 189         struct snd_vxpocket *vxp = (struct snd_vxpocket *)chip;
 190
 191         snd_printdd(KERN_DEBUG "vxpocket assign resources: port = 0x%x, irq = %d\n", port, irq);
 192         vxp->port = port;
 193
 194         sprintf(card->shortname, "Digigram %s", card->driver);
 195         sprintf(card->longname, "%s at 0x%x, irq %i",
 196                 card->shortname, port, irq);
 197
 198         chip->irq = irq;
 199
 200         if ((err = snd_vx_setup_firmware(chip)) < 0)
 201                 return err;
 202
 203         return 0;
 204 }
 205
 206
 207 /*
 208  * configuration callback
 209  */
 210
 211 static int vxpocket_config(struct pcmcia_device *link)
 212 {
 213         struct vx_core *chip = link->priv;
 214         int ret;
 215
 216         snd_printdd(KERN_DEBUG "vxpocket_config called\n");
 217
 218         /* redefine hardware record according to the VERSION1 string */
 219         if (!strcmp(link->prod_id[1], "VX-POCKET")) {
 220                 snd_printdd("VX-pocket is detected\n");
 221         } else {
 222                 snd_printdd("VX-pocket 440 is detected\n");
 223                 /* overwrite the hardware information */
 224                 chip->hw = &vxp440_hw;
 225                 chip->type = vxp440_hw.type;
 226                 strcpy(chip->card->driver, vxp440_hw.name);
 227         }
 228
 229         ret = pcmcia_request_io(link);
 230         if (ret)
 231                 goto failed;
 232
 233         ret = pcmcia_request_exclusive_irq(link, snd_vx_irq_handler);
 234         if (ret)
 235                 goto failed;
 236
 237         ret = pcmcia_request_configuration(link, &link->conf);
 238         if (ret)
 239                 goto failed;
 240
 241         chip->dev = &link->dev;
 242         snd_card_set_dev(chip->card, chip->dev);
 243
 244         if (snd_vxpocket_assign_resources(chip, link->resource[0]->start,
 245                                                 link->irq) < 0)
 246                 goto failed;
 247
 248         return 0;
 249
 250 failed:
 251         pcmcia_disable_device(link);
 252         return -ENODEV;
 253 }
 254
 255 #ifdef CONFIG_PM
 256
 257 static int vxp_suspend(struct pcmcia_device *link)
 258 {
 259         struct vx_core *chip = link->priv;
 260
 261         snd_printdd(KERN_DEBUG "SUSPEND\n");
 262         if (chip) {
 263                 snd_printdd(KERN_DEBUG "snd_vx_suspend calling\n");
 264                 snd_vx_suspend(chip, PMSG_SUSPEND);
 265         }
 266
 267         return 0;
 268 }
 269
 270 static int vxp_resume(struct pcmcia_device *link)
 271 {
 272         struct vx_core *chip = link->priv;
 273
 274         snd_printdd(KERN_DEBUG "RESUME\n");
 275         if (pcmcia_dev_present(link)) {
 276                 //struct snd_vxpocket *vxp = (struct snd_vxpocket *)chip;
 277                 if (chip) {
 278                         snd_printdd(KERN_DEBUG "calling snd_vx_resume\n");
 279                         snd_vx_resume(chip);
 280                 }
 281         }
 282         snd_printdd(KERN_DEBUG "resume done!\n");
 283
 284         return 0;
 285 }
 286
 287 #endif
 288
 289
 290 /*
 291  */
 292 static int vxpocket_probe(struct pcmcia_device *p_dev)
 293 {
 294         struct snd_card *card;
 295         struct snd_vxpocket *vxp;
 296         int i, err;
 297
 298         /* find an empty slot from the card list */
 299         for (i = 0; i < SNDRV_CARDS; i++) {
 300                 if (!(card_alloc & (1 << i)))
 301                         break;
 302         }
 303         if (i >= SNDRV_CARDS) {
 304                 snd_printk(KERN_ERR "vxpocket: too many cards found\n");
 305                 return -EINVAL;
 306         }
 307         if (! enable[i])
 308                 return -ENODEV; /* disabled explicitly */
 309
 310         /* ok, create a card instance */
 311         err = snd_card_create(index[i], id[i], THIS_MODULE, 0, &card);
 312         if (err < 0) {
 313                 snd_printk(KERN_ERR "vxpocket: cannot create a card instance\n");
 314                 return err;
 315         }
 316
 317         err = snd_vxpocket_new(card, ibl[i], p_dev, &vxp);
 318         if (err < 0) {
 319                 snd_card_free(card);
 320                 return err;
 321         }
 322         card->private_data = vxp;
 323
 324         vxp->index = i;
 325         card_alloc |= 1 << i;
 326
 327         vxp->p_dev = p_dev;
 328
 329         return vxpocket_config(p_dev);
 330 }
 331
 332 static void vxpocket_detach(struct pcmcia_device *link)
 333 {
 334         struct snd_vxpocket *vxp;
 335         struct vx_core *chip;
 336
 337         if (! link)
 338                 return;
 339
 340         vxp = link->priv;
 341         chip = (struct vx_core *)vxp;
 342         card_alloc &= ~(1 << vxp->index);
 343
 344         chip->chip_status |= VX_STAT_IS_STALE; /* to be sure */
 345         snd_card_disconnect(chip->card);
 346         vxpocket_release(link);
 347         snd_card_free_when_closed(chip->card);
 348 }
 349
 350 /*
 351  * Module entry points
 352  */
 353
 354 static struct pcmcia_device_id vxp_ids[] = {
 355         PCMCIA_DEVICE_MANF_CARD(0x01f1, 0x0100),
 356         PCMCIA_DEVICE_NULL
 357 };
 358 MODULE_DEVICE_TABLE(pcmcia, vxp_ids);
 359
 360 static struct pcmcia_driver vxp_cs_driver = {
 361         .owner          = THIS_MODULE,
 362         .drv            = {
 363                 .name   = "snd-vxpocket",
 364         },
 365         .probe          = vxpocket_probe,
 366         .remove         = vxpocket_detach,
 367         .id_table       = vxp_ids,
 368 #ifdef CONFIG_PM
 369         .suspend        = vxp_suspend,
 370         .resume         = vxp_resume,
 371 #endif
 372 };
 373
 374 static int __init init_vxpocket(void)
 375 {
 376         return pcmcia_register_driver(&vxp_cs_driver);
 377 }
 378
 379 static void __exit exit_vxpocket(void)
 380 {
 381         pcmcia_unregister_driver(&vxp_cs_driver);
 382 }
 383
 384 module_init(init_vxpocket);
 385 module_exit(exit_vxpocket);