LXR linux/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/module.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
  35MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>");
  36MODULE_DESCRIPTION("Digigram VXPocket");
  37MODULE_LICENSE("GPL");
  38MODULE_SUPPORTED_DEVICE("{{Digigram,VXPocket},{Digigram,VXPocket440}}");
  39
  40static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
  41static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
  42static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;     /* Enable switches */
  43static int ibl[SNDRV_CARDS];
  44
  45module_param_array(index, int, NULL, 0444);
  46MODULE_PARM_DESC(index, "Index value for VXPocket soundcard.");
  47module_param_array(id, charp, NULL, 0444);
  48MODULE_PARM_DESC(id, "ID string for VXPocket soundcard.");
  49module_param_array(enable, bool, NULL, 0444);
  50MODULE_PARM_DESC(enable, "Enable VXPocket soundcard.");
  51module_param_array(ibl, int, NULL, 0444);
  52MODULE_PARM_DESC(ibl, "Capture IBL size for VXPocket soundcard.");
  53 
  54
  55/*
  56 */
  57
  58static unsigned int card_alloc;
  59
  60
  61/*
  62 */
  63static void vxpocket_release(struct pcmcia_device *link)
  64{
  65        free_irq(link->irq, link->priv);
  66        pcmcia_disable_device(link);
  67}
  68
  69/*
  70 * destructor, called from snd_card_free_when_closed()
  71 */
  72static int snd_vxpocket_dev_free(struct snd_device *device)
  73{
  74        struct vx_core *chip = device->device_data;
  75
  76        snd_vx_free_firmware(chip);
  77        kfree(chip);
  78        return 0;
  79}
  80
  81
  82/*
  83 * Hardware information
  84 */
  85
  86/* VX-pocket V2
  87 *
  88 * 1 DSP, 1 sync UER
  89 * 1 programmable clock (NIY)
  90 * 1 stereo analog input (line/micro)
  91 * 1 stereo analog output
  92 * Only output levels can be modified
  93 */
  94
  95static const DECLARE_TLV_DB_SCALE(db_scale_old_vol, -11350, 50, 0);
  96
  97static struct snd_vx_hardware vxpocket_hw = {
  98        .name = "VXPocket",
  99        .type = VX_TYPE_VXPOCKET,
 100
 101        /* hardware specs */
 102        .num_codecs = 1,
 103        .num_ins = 1,
 104        .num_outs = 1,
 105        .output_level_max = VX_ANALOG_OUT_LEVEL_MAX,
 106        .output_level_db_scale = db_scale_old_vol,
 107};      
 108
 109/* VX-pocket 440
 110 *
 111 * 1 DSP, 1 sync UER, 1 sync World Clock (NIY)
 112 * SMPTE (NIY)
 113 * 2 stereo analog input (line/micro)
 114 * 2 stereo analog output
 115 * Only output levels can be modified
 116 * UER, but only for the first two inputs and outputs.
 117 */
 118
 119static struct snd_vx_hardware vxp440_hw = {
 120        .name = "VXPocket440",
 121        .type = VX_TYPE_VXP440,
 122
 123        /* hardware specs */
 124        .num_codecs = 2,
 125        .num_ins = 2,
 126        .num_outs = 2,
 127        .output_level_max = VX_ANALOG_OUT_LEVEL_MAX,
 128        .output_level_db_scale = db_scale_old_vol,
 129};      
 130
 131
 132/*
 133 * create vxpocket instance
 134 */
 135static int snd_vxpocket_new(struct snd_card *card, int ibl,
 136                            struct pcmcia_device *link,
 137                            struct snd_vxpocket **chip_ret)
 138{
 139        struct vx_core *chip;
 140        struct snd_vxpocket *vxp;
 141        static struct snd_device_ops ops = {
 142                .dev_free =     snd_vxpocket_dev_free,
 143        };
 144        int err;
 145
 146        chip = snd_vx_create(card, &vxpocket_hw, &snd_vxpocket_ops,
 147                             sizeof(struct snd_vxpocket) - sizeof(struct vx_core));
 148        if (!chip)
 149                return -ENOMEM;
 150
 151        err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
 152        if (err < 0) {
 153                kfree(chip);
 154                return err;
 155        }
 156        chip->ibl.size = ibl;
 157
 158        vxp = (struct snd_vxpocket *)chip;
 159
 160        vxp->p_dev = link;
 161        link->priv = chip;
 162
 163        link->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
 164        link->resource[0]->end = 16;
 165
 166        link->config_flags |= CONF_ENABLE_IRQ;
 167        link->config_index = 1;
 168        link->config_regs = 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 * @chip: VX core instance
 178 * @port: i/o port for the card
 179 * @irq: irq number for the card
 180 *
 181 * this function assigns the specified port and irq, boot the card,
 182 * create pcm and control instances, and initialize the rest hardware.
 183 *
 184 * returns 0 if successful, or a negative error code.
 185 */
 186static int snd_vxpocket_assign_resources(struct vx_core *chip, int port, int irq)
 187{
 188        int err;
 189        struct snd_card *card = chip->card;
 190        struct snd_vxpocket *vxp = (struct snd_vxpocket *)chip;
 191
 192        snd_printdd(KERN_DEBUG "vxpocket assign resources: port = 0x%x, irq = %d\n", port, irq);
 193        vxp->port = port;
 194
 195        sprintf(card->shortname, "Digigram %s", card->driver);
 196        sprintf(card->longname, "%s at 0x%x, irq %i",
 197                card->shortname, port, irq);
 198
 199        chip->irq = irq;
 200
 201        if ((err = snd_vx_setup_firmware(chip)) < 0)
 202                return err;
 203
 204        return 0;
 205}
 206
 207
 208/*
 209 * configuration callback
 210 */
 211
 212static int vxpocket_config(struct pcmcia_device *link)
 213{
 214        struct vx_core *chip = link->priv;
 215        int ret;
 216
 217        snd_printdd(KERN_DEBUG "vxpocket_config called\n");
 218
 219        /* redefine hardware record according to the VERSION1 string */
 220        if (!strcmp(link->prod_id[1], "VX-POCKET")) {
 221                snd_printdd("VX-pocket is detected\n");
 222        } else {
 223                snd_printdd("VX-pocket 440 is detected\n");
 224                /* overwrite the hardware information */
 225                chip->hw = &vxp440_hw;
 226                chip->type = vxp440_hw.type;
 227                strcpy(chip->card->driver, vxp440_hw.name);
 228        }
 229
 230        ret = pcmcia_request_io(link);
 231        if (ret)
 232                goto failed_preirq;
 233
 234        ret = request_threaded_irq(link->irq, snd_vx_irq_handler,
 235                                   snd_vx_threaded_irq_handler,
 236                                   IRQF_SHARED, link->devname, link->priv);
 237        if (ret)
 238                goto failed_preirq;
 239
 240        ret = pcmcia_enable_device(link);
 241        if (ret)
 242                goto failed;
 243
 244        chip->dev = &link->dev;
 245
 246        if (snd_vxpocket_assign_resources(chip, link->resource[0]->start,
 247                                                link->irq) < 0)
 248                goto failed;
 249
 250        return 0;
 251
 252 failed:
 253        free_irq(link->irq, link->priv);
 254failed_preirq:
 255        pcmcia_disable_device(link);
 256        return -ENODEV;
 257}
 258
 259#ifdef CONFIG_PM
 260
 261static int vxp_suspend(struct pcmcia_device *link)
 262{
 263        struct vx_core *chip = link->priv;
 264
 265        snd_printdd(KERN_DEBUG "SUSPEND\n");
 266        if (chip) {
 267                snd_printdd(KERN_DEBUG "snd_vx_suspend calling\n");
 268                snd_vx_suspend(chip);
 269        }
 270
 271        return 0;
 272}
 273
 274static int vxp_resume(struct pcmcia_device *link)
 275{
 276        struct vx_core *chip = link->priv;
 277
 278        snd_printdd(KERN_DEBUG "RESUME\n");
 279        if (pcmcia_dev_present(link)) {
 280                //struct snd_vxpocket *vxp = (struct snd_vxpocket *)chip;
 281                if (chip) {
 282                        snd_printdd(KERN_DEBUG "calling snd_vx_resume\n");
 283                        snd_vx_resume(chip);
 284                }
 285        }
 286        snd_printdd(KERN_DEBUG "resume done!\n");
 287
 288        return 0;
 289}
 290
 291#endif
 292
 293
 294/*
 295 */
 296static int vxpocket_probe(struct pcmcia_device *p_dev)
 297{
 298        struct snd_card *card;
 299        struct snd_vxpocket *vxp;
 300        int i, err;
 301
 302        /* find an empty slot from the card list */
 303        for (i = 0; i < SNDRV_CARDS; i++) {
 304                if (!(card_alloc & (1 << i)))
 305                        break;
 306        }
 307        if (i >= SNDRV_CARDS) {
 308                snd_printk(KERN_ERR "vxpocket: too many cards found\n");
 309                return -EINVAL;
 310        }
 311        if (! enable[i])
 312                return -ENODEV; /* disabled explicitly */
 313
 314        /* ok, create a card instance */
 315        err = snd_card_new(&p_dev->dev, index[i], id[i], THIS_MODULE,
 316                           0, &card);
 317        if (err < 0) {
 318                snd_printk(KERN_ERR "vxpocket: cannot create a card instance\n");
 319                return err;
 320        }
 321
 322        err = snd_vxpocket_new(card, ibl[i], p_dev, &vxp);
 323        if (err < 0) {
 324                snd_card_free(card);
 325                return err;
 326        }
 327        card->private_data = vxp;
 328
 329        vxp->index = i;
 330        card_alloc |= 1 << i;
 331
 332        vxp->p_dev = p_dev;
 333
 334        return vxpocket_config(p_dev);
 335}
 336
 337static void vxpocket_detach(struct pcmcia_device *link)
 338{
 339        struct snd_vxpocket *vxp;
 340        struct vx_core *chip;
 341
 342        if (! link)
 343                return;
 344
 345        vxp = link->priv;
 346        chip = (struct vx_core *)vxp;
 347        card_alloc &= ~(1 << vxp->index);
 348
 349        chip->chip_status |= VX_STAT_IS_STALE; /* to be sure */
 350        snd_card_disconnect(chip->card);
 351        vxpocket_release(link);
 352        snd_card_free_when_closed(chip->card);
 353}
 354
 355/*
 356 * Module entry points
 357 */
 358
 359static const struct pcmcia_device_id vxp_ids[] = {
 360        PCMCIA_DEVICE_MANF_CARD(0x01f1, 0x0100),
 361        PCMCIA_DEVICE_NULL
 362};
 363MODULE_DEVICE_TABLE(pcmcia, vxp_ids);
 364
 365static struct pcmcia_driver vxp_cs_driver = {
 366        .owner          = THIS_MODULE,
 367        .name           = "snd-vxpocket",
 368        .probe          = vxpocket_probe,
 369        .remove         = vxpocket_detach,
 370        .id_table       = vxp_ids,
 371#ifdef CONFIG_PM
 372        .suspend        = vxp_suspend,
 373        .resume         = vxp_resume,
 374#endif
 375};
 376module_pcmcia_driver(vxp_cs_driver);
 377