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