sound/pcmcia/vx/vxpocket.c

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This source file includes following definitions.
vxpocket_release
snd_vxpocket_dev_free
snd_vxpocket_new
snd_vxpocket_assign_resources
vxpocket_config
vxp_suspend
vxp_resume
vxpocket_probe
vxpocket_detach
   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 
  23 MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>");
  24 MODULE_DESCRIPTION("Digigram VXPocket");
  25 MODULE_LICENSE("GPL");
  26 MODULE_SUPPORTED_DEVICE("{{Digigram,VXPocket},{Digigram,VXPocket440}}");
  27 
  28 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
  29 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
  30 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;     /* Enable switches */
  31 static int ibl[SNDRV_CARDS];
  32 
  33 module_param_array(index, int, NULL, 0444);
  34 MODULE_PARM_DESC(index, "Index value for VXPocket soundcard.");
  35 module_param_array(id, charp, NULL, 0444);
  36 MODULE_PARM_DESC(id, "ID string for VXPocket soundcard.");
  37 module_param_array(enable, bool, NULL, 0444);
  38 MODULE_PARM_DESC(enable, "Enable VXPocket soundcard.");
  39 module_param_array(ibl, int, NULL, 0444);
  40 MODULE_PARM_DESC(ibl, "Capture IBL size for VXPocket soundcard.");
  41  
  42 
  43 /*
  44  */
  45 
  46 static unsigned int card_alloc;
  47 
  48 
  49 /*
  50  */
  51 static 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  */
  60 static 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 
  83 static const DECLARE_TLV_DB_SCALE(db_scale_old_vol, -11350, 50, 0);
  84 
  85 static 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 
 107 static 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  */
 123 static 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 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  */
 174 static 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 
 189         if ((err = snd_vx_setup_firmware(chip)) < 0)
 190                 return err;
 191 
 192         return 0;
 193 }
 194 
 195 
 196 /*
 197  * configuration callback
 198  */
 199 
 200 static int vxpocket_config(struct pcmcia_device *link)
 201 {
 202         struct vx_core *chip = link->priv;
 203         int ret;
 204 
 205         snd_printdd(KERN_DEBUG "vxpocket_config called\n");
 206 
 207         /* redefine hardware record according to the VERSION1 string */
 208         if (!strcmp(link->prod_id[1], "VX-POCKET")) {
 209                 snd_printdd("VX-pocket is detected\n");
 210         } else {
 211                 snd_printdd("VX-pocket 440 is detected\n");
 212                 /* overwrite the hardware information */
 213                 chip->hw = &vxp440_hw;
 214                 chip->type = vxp440_hw.type;
 215                 strcpy(chip->card->driver, vxp440_hw.name);
 216         }
 217 
 218         ret = pcmcia_request_io(link);
 219         if (ret)
 220                 goto failed_preirq;
 221 
 222         ret = request_threaded_irq(link->irq, snd_vx_irq_handler,
 223                                    snd_vx_threaded_irq_handler,
 224                                    IRQF_SHARED, link->devname, link->priv);
 225         if (ret)
 226                 goto failed_preirq;
 227 
 228         ret = pcmcia_enable_device(link);
 229         if (ret)
 230                 goto failed;
 231 
 232         chip->dev = &link->dev;
 233 
 234         if (snd_vxpocket_assign_resources(chip, link->resource[0]->start,
 235                                                 link->irq) < 0)
 236                 goto failed;
 237 
 238         return 0;
 239 
 240  failed:
 241         free_irq(link->irq, link->priv);
 242 failed_preirq:
 243         pcmcia_disable_device(link);
 244         return -ENODEV;
 245 }
 246 
 247 #ifdef CONFIG_PM
 248 
 249 static int vxp_suspend(struct pcmcia_device *link)
 250 {
 251         struct vx_core *chip = link->priv;
 252 
 253         snd_printdd(KERN_DEBUG "SUSPEND\n");
 254         if (chip) {
 255                 snd_printdd(KERN_DEBUG "snd_vx_suspend calling\n");
 256                 snd_vx_suspend(chip);
 257         }
 258 
 259         return 0;
 260 }
 261 
 262 static int vxp_resume(struct pcmcia_device *link)
 263 {
 264         struct vx_core *chip = link->priv;
 265 
 266         snd_printdd(KERN_DEBUG "RESUME\n");
 267         if (pcmcia_dev_present(link)) {
 268                 //struct snd_vxpocket *vxp = (struct snd_vxpocket *)chip;
 269                 if (chip) {
 270                         snd_printdd(KERN_DEBUG "calling snd_vx_resume\n");
 271                         snd_vx_resume(chip);
 272                 }
 273         }
 274         snd_printdd(KERN_DEBUG "resume done!\n");
 275 
 276         return 0;
 277 }
 278 
 279 #endif
 280 
 281 
 282 /*
 283  */
 284 static int vxpocket_probe(struct pcmcia_device *p_dev)
 285 {
 286         struct snd_card *card;
 287         struct snd_vxpocket *vxp;
 288         int i, err;
 289 
 290         /* find an empty slot from the card list */
 291         for (i = 0; i < SNDRV_CARDS; i++) {
 292                 if (!(card_alloc & (1 << i)))
 293                         break;
 294         }
 295         if (i >= SNDRV_CARDS) {
 296                 snd_printk(KERN_ERR "vxpocket: too many cards found\n");
 297                 return -EINVAL;
 298         }
 299         if (! enable[i])
 300                 return -ENODEV; /* disabled explicitly */
 301 
 302         /* ok, create a card instance */
 303         err = snd_card_new(&p_dev->dev, index[i], id[i], THIS_MODULE,
 304                            0, &card);
 305         if (err < 0) {
 306                 snd_printk(KERN_ERR "vxpocket: cannot create a card instance\n");
 307                 return err;
 308         }
 309 
 310         err = snd_vxpocket_new(card, ibl[i], p_dev, &vxp);
 311         if (err < 0) {
 312                 snd_card_free(card);
 313                 return err;
 314         }
 315         card->private_data = vxp;
 316 
 317         vxp->index = i;
 318         card_alloc |= 1 << i;
 319 
 320         vxp->p_dev = p_dev;
 321 
 322         return vxpocket_config(p_dev);
 323 }
 324 
 325 static void vxpocket_detach(struct pcmcia_device *link)
 326 {
 327         struct snd_vxpocket *vxp;
 328         struct vx_core *chip;
 329 
 330         if (! link)
 331                 return;
 332 
 333         vxp = link->priv;
 334         chip = (struct vx_core *)vxp;
 335         card_alloc &= ~(1 << vxp->index);
 336 
 337         chip->chip_status |= VX_STAT_IS_STALE; /* to be sure */
 338         snd_card_disconnect(chip->card);
 339         vxpocket_release(link);
 340         snd_card_free_when_closed(chip->card);
 341 }
 342 
 343 /*
 344  * Module entry points
 345  */
 346 
 347 static const struct pcmcia_device_id vxp_ids[] = {
 348         PCMCIA_DEVICE_MANF_CARD(0x01f1, 0x0100),
 349         PCMCIA_DEVICE_NULL
 350 };
 351 MODULE_DEVICE_TABLE(pcmcia, vxp_ids);
 352 
 353 static struct pcmcia_driver vxp_cs_driver = {
 354         .owner          = THIS_MODULE,
 355         .name           = "snd-vxpocket",
 356         .probe          = vxpocket_probe,
 357         .remove         = vxpocket_detach,
 358         .id_table       = vxp_ids,
 359 #ifdef CONFIG_PM
 360         .suspend        = vxp_suspend,
 361         .resume         = vxp_resume,
 362 #endif
 363 };
 364 module_pcmcia_driver(vxp_cs_driver);
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root/sound/pcmcia/vx/vxpocket.c

DEFINITIONS
