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