LXR linux/sound/pcmcia/vx/vxpocket.c

   1// SPDX-License-Identifier: GPL-2.0-or-later
   2/*
   3 * Driver for Digigram VXpocket V2/440 soundcards
   4 *
   5 * Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de>
   6
   7 */
   8
   9
  10#include <linux/init.h>
  11#include <linux/module.h>
  12#include <linux/slab.h>
  13#include <sound/core.h>
  14#include "vxpocket.h"
  15#include <pcmcia/ciscode.h>
  16#include <pcmcia/cisreg.h>
  17#include <sound/initval.h>
  18#include <sound/tlv.h>
  19
  20/*
  21 */
  22
  23MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>");
  24MODULE_DESCRIPTION("Digigram VXPocket");
  25MODULE_LICENSE("GPL");
  26MODULE_SUPPORTED_DEVICE("{{Digigram,VXPocket},{Digigram,VXPocket440}}");
  27
  28static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
  29static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
  30static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;     /* Enable switches */
  31static int ibl[SNDRV_CARDS];
  32
  33module_param_array(index, int, NULL, 0444);
  34MODULE_PARM_DESC(index, "Index value for VXPocket soundcard.");
  35module_param_array(id, charp, NULL, 0444);
  36MODULE_PARM_DESC(id, "ID string for VXPocket soundcard.");
  37module_param_array(enable, bool, NULL, 0444);
  38MODULE_PARM_DESC(enable, "Enable VXPocket soundcard.");
  39module_param_array(ibl, int, NULL, 0444);
  40MODULE_PARM_DESC(ibl, "Capture IBL size for VXPocket soundcard.");
  41 
  42
  43/*
  44 */
  45
  46static unsigned int card_alloc;
  47
  48
  49/*
  50 */
  51static void vxpocket_release(struct pcmcia_device *link)
  52{
  53        free_irq(link->irq, link->priv);
  54        pcmcia_disable_device(link);
  55}
  56
  57/*
  58 * destructor, called from snd_card_free_when_closed()
  59 */
  60static int snd_vxpocket_dev_free(struct snd_device *device)
  61{
  62        struct vx_core *chip = device->device_data;
  63
  64        snd_vx_free_firmware(chip);
  65        kfree(chip);
  66        return 0;
  67}
  68
  69
  70/*
  71 * Hardware information
  72 */
  73
  74/* VX-pocket V2
  75 *
  76 * 1 DSP, 1 sync UER
  77 * 1 programmable clock (NIY)
  78 * 1 stereo analog input (line/micro)
  79 * 1 stereo analog output
  80 * Only output levels can be modified
  81 */
  82
  83static const DECLARE_TLV_DB_SCALE(db_scale_old_vol, -11350, 50, 0);
  84
  85static const struct snd_vx_hardware vxpocket_hw = {
  86        .name = "VXPocket",
  87        .type = VX_TYPE_VXPOCKET,
  88
  89        /* hardware specs */
  90        .num_codecs = 1,
  91        .num_ins = 1,
  92        .num_outs = 1,
  93        .output_level_max = VX_ANALOG_OUT_LEVEL_MAX,
  94        .output_level_db_scale = db_scale_old_vol,
  95};      
  96
  97/* VX-pocket 440
  98 *
  99 * 1 DSP, 1 sync UER, 1 sync World Clock (NIY)
 100 * SMPTE (NIY)
 101 * 2 stereo analog input (line/micro)
 102 * 2 stereo analog output
 103 * Only output levels can be modified
 104 * UER, but only for the first two inputs and outputs.
 105 */
 106
 107static const struct snd_vx_hardware vxp440_hw = {
 108        .name = "VXPocket440",
 109        .type = VX_TYPE_VXP440,
 110
 111        /* hardware specs */
 112        .num_codecs = 2,
 113        .num_ins = 2,
 114        .num_outs = 2,
 115        .output_level_max = VX_ANALOG_OUT_LEVEL_MAX,
 116        .output_level_db_scale = db_scale_old_vol,
 117};      
 118
 119
 120/*
 121 * create vxpocket instance
 122 */
 123static int snd_vxpocket_new(struct snd_card *card, int ibl,
 124                            struct pcmcia_device *link,
 125                            struct snd_vxpocket **chip_ret)
 126{
 127        struct vx_core *chip;
 128        struct snd_vxpocket *vxp;
 129        static const struct snd_device_ops ops = {
 130                .dev_free =     snd_vxpocket_dev_free,
 131        };
 132        int err;
 133
 134        chip = snd_vx_create(card, &vxpocket_hw, &snd_vxpocket_ops,
 135                             sizeof(struct snd_vxpocket) - sizeof(struct vx_core));
 136        if (!chip)
 137                return -ENOMEM;
 138
 139        err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
 140        if (err < 0) {
 141                kfree(chip);
 142                return err;
 143        }
 144        chip->ibl.size = ibl;
 145
 146        vxp = to_vxpocket(chip);
 147
 148        vxp->p_dev = link;
 149        link->priv = chip;
 150
 151        link->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
 152        link->resource[0]->end = 16;
 153
 154        link->config_flags |= CONF_ENABLE_IRQ;
 155        link->config_index = 1;
 156        link->config_regs = PRESENT_OPTION;
 157
 158        *chip_ret = vxp;
 159        return 0;
 160}
 161
 162
 163/**
 164 * snd_vxpocket_assign_resources - initialize the hardware and card instance.
 165 * @chip: VX core instance
 166 * @port: i/o port for the card
 167 * @irq: irq number for the card
 168 *
 169 * this function assigns the specified port and irq, boot the card,
 170 * create pcm and control instances, and initialize the rest hardware.
 171 *
 172 * returns 0 if successful, or a negative error code.
 173 */
 174static int snd_vxpocket_assign_resources(struct vx_core *chip, int port, int irq)
 175{
 176        int err;
 177        struct snd_card *card = chip->card;
 178        struct snd_vxpocket *vxp = to_vxpocket(chip);
 179
 180        snd_printdd(KERN_DEBUG "vxpocket assign resources: port = 0x%x, irq = %d\n", port, irq);
 181        vxp->port = port;
 182
 183        sprintf(card->shortname, "Digigram %s", card->driver);
 184        sprintf(card->longname, "%s at 0x%x, irq %i",
 185                card->shortname, port, irq);
 186
 187        chip->irq = irq;
 188        card->sync_irq = chip->irq;
 189
 190        if ((err = snd_vx_setup_firmware(chip)) < 0)
 191                return err;
 192
 193        return 0;
 194}
 195
 196
 197/*
 198 * configuration callback
 199 */
 200
 201static int vxpocket_config(struct pcmcia_device *link)
 202{
 203        struct vx_core *chip = link->priv;
 204        int ret;
 205
 206        snd_printdd(KERN_DEBUG "vxpocket_config called\n");
 207
 208        /* redefine hardware record according to the VERSION1 string */
 209        if (!strcmp(link->prod_id[1], "VX-POCKET")) {
 210                snd_printdd("VX-pocket is detected\n");
 211        } else {
 212                snd_printdd("VX-pocket 440 is detected\n");
 213                /* overwrite the hardware information */
 214                chip->hw = &vxp440_hw;
 215                chip->type = vxp440_hw.type;
 216                strcpy(chip->card->driver, vxp440_hw.name);
 217        }
 218
 219        ret = pcmcia_request_io(link);
 220        if (ret)
 221                goto failed_preirq;
 222
 223        ret = request_threaded_irq(link->irq, snd_vx_irq_handler,
 224                                   snd_vx_threaded_irq_handler,
 225                                   IRQF_SHARED, link->devname, link->priv);
 226        if (ret)
 227                goto failed_preirq;
 228
 229        ret = pcmcia_enable_device(link);
 230        if (ret)
 231                goto failed;
 232
 233        chip->dev = &link->dev;
 234
 235        if (snd_vxpocket_assign_resources(chip, link->resource[0]->start,
 236                                                link->irq) < 0)
 237                goto failed;
 238
 239        return 0;
 240
 241 failed:
 242        free_irq(link->irq, link->priv);
 243failed_preirq:
 244        pcmcia_disable_device(link);
 245        return -ENODEV;
 246}
 247
 248#ifdef CONFIG_PM
 249
 250static int vxp_suspend(struct pcmcia_device *link)
 251{
 252        struct vx_core *chip = link->priv;
 253
 254        snd_printdd(KERN_DEBUG "SUSPEND\n");
 255        if (chip) {
 256                snd_printdd(KERN_DEBUG "snd_vx_suspend calling\n");
 257                snd_vx_suspend(chip);
 258        }
 259
 260        return 0;
 261}
 262
 263static int vxp_resume(struct pcmcia_device *link)
 264{
 265        struct vx_core *chip = link->priv;
 266
 267        snd_printdd(KERN_DEBUG "RESUME\n");
 268        if (pcmcia_dev_present(link)) {
 269                //struct snd_vxpocket *vxp = (struct snd_vxpocket *)chip;
 270                if (chip) {
 271                        snd_printdd(KERN_DEBUG "calling snd_vx_resume\n");
 272                        snd_vx_resume(chip);
 273                }
 274        }
 275        snd_printdd(KERN_DEBUG "resume done!\n");
 276
 277        return 0;
 278}
 279
 280#endif
 281
 282
 283/*
 284 */
 285static int vxpocket_probe(struct pcmcia_device *p_dev)
 286{
 287        struct snd_card *card;
 288        struct snd_vxpocket *vxp;
 289        int i, err;
 290
 291        /* find an empty slot from the card list */
 292        for (i = 0; i < SNDRV_CARDS; i++) {
 293                if (!(card_alloc & (1 << i)))
 294                        break;
 295        }
 296        if (i >= SNDRV_CARDS) {
 297                snd_printk(KERN_ERR "vxpocket: too many cards found\n");
 298                return -EINVAL;
 299        }
 300        if (! enable[i])
 301                return -ENODEV; /* disabled explicitly */
 302
 303        /* ok, create a card instance */
 304        err = snd_card_new(&p_dev->dev, index[i], id[i], THIS_MODULE,
 305                           0, &card);
 306        if (err < 0) {
 307                snd_printk(KERN_ERR "vxpocket: cannot create a card instance\n");
 308                return err;
 309        }
 310
 311        err = snd_vxpocket_new(card, ibl[i], p_dev, &vxp);
 312        if (err < 0) {
 313                snd_card_free(card);
 314                return err;
 315        }
 316        card->private_data = vxp;
 317
 318        vxp->index = i;
 319        card_alloc |= 1 << i;
 320
 321        vxp->p_dev = p_dev;
 322
 323        return vxpocket_config(p_dev);
 324}
 325
 326static void vxpocket_detach(struct pcmcia_device *link)
 327{
 328        struct snd_vxpocket *vxp;
 329        struct vx_core *chip;
 330
 331        if (! link)
 332                return;
 333
 334        vxp = link->priv;
 335        chip = (struct vx_core *)vxp;
 336        card_alloc &= ~(1 << vxp->index);
 337
 338        chip->chip_status |= VX_STAT_IS_STALE; /* to be sure */
 339        snd_card_disconnect(chip->card);
 340        vxpocket_release(link);
 341        snd_card_free_when_closed(chip->card);
 342}
 343
 344/*
 345 * Module entry points
 346 */
 347
 348static const struct pcmcia_device_id vxp_ids[] = {
 349        PCMCIA_DEVICE_MANF_CARD(0x01f1, 0x0100),
 350        PCMCIA_DEVICE_NULL
 351};
 352MODULE_DEVICE_TABLE(pcmcia, vxp_ids);
 353
 354static struct pcmcia_driver vxp_cs_driver = {
 355        .owner          = THIS_MODULE,
 356        .name           = "snd-vxpocket",
 357        .probe          = vxpocket_probe,
 358        .remove         = vxpocket_detach,
 359        .id_table       = vxp_ids,
 360#ifdef CONFIG_PM
 361        .suspend        = vxp_suspend,
 362        .resume         = vxp_resume,
 363#endif
 364};
 365module_pcmcia_driver(vxp_cs_driver);
 366