sound/usb/usx2y/usbusx2y.c

   1 /*
   2  * usbusy2y.c - ALSA USB US-428 Driver
   3  *
   4 2004-12-14 Karsten Wiese
   5         Version 0.8.7.1:
   6         snd_pcm_open for rawusb pcm-devices now returns -EBUSY if called without rawusb's hwdep device being open.
   7
   8 2004-12-02 Karsten Wiese
   9         Version 0.8.7:
  10         Use macro usb_maxpacket() for portability.
  11
  12 2004-10-26 Karsten Wiese
  13         Version 0.8.6:
  14         wake_up() process waiting in usX2Y_urbs_start() on error.
  15
  16 2004-10-21 Karsten Wiese
  17         Version 0.8.5:
  18         nrpacks is runtime or compiletime configurable now with tested values from 1 to 4.
  19
  20 2004-10-03 Karsten Wiese
  21         Version 0.8.2:
  22         Avoid any possible racing while in prepare callback.
  23
  24 2004-09-30 Karsten Wiese
  25         Version 0.8.0:
  26         Simplified things and made ohci work again.
  27
  28 2004-09-20 Karsten Wiese
  29         Version 0.7.3:
  30         Use usb_kill_urb() instead of deprecated (kernel 2.6.9) usb_unlink_urb().
  31
  32 2004-07-13 Karsten Wiese
  33         Version 0.7.1:
  34         Don't sleep in START/STOP callbacks anymore.
  35         us428 channels C/D not handled just for this version, sorry.
  36
  37 2004-06-21 Karsten Wiese
  38         Version 0.6.4:
  39         Temporarely suspend midi input
  40         to sanely call usb_set_interface() when setting format.
  41
  42 2004-06-12 Karsten Wiese
  43         Version 0.6.3:
  44         Made it thus the following rule is enforced:
  45         "All pcm substreams of one usX2Y have to operate at the same rate & format."
  46
  47 2004-04-06 Karsten Wiese
  48         Version 0.6.0:
  49         Runs on 2.6.5 kernel without any "--with-debug=" things.
  50         us224 reported running.
  51
  52 2004-01-14 Karsten Wiese
  53         Version 0.5.1:
  54         Runs with 2.6.1 kernel.
  55
  56 2003-12-30 Karsten Wiese
  57         Version 0.4.1:
  58         Fix 24Bit 4Channel capturing for the us428.
  59
  60 2003-11-27 Karsten Wiese, Martin Langer
  61         Version 0.4:
  62         us122 support.
  63         us224 could be tested by uncommenting the sections containing USB_ID_US224
  64
  65 2003-11-03 Karsten Wiese
  66         Version 0.3:
  67         24Bit support.
  68         "arecord -D hw:1 -c 2 -r 48000 -M -f S24_3LE|aplay -D hw:1 -c 2 -r 48000 -M -f S24_3LE" works.
  69
  70 2003-08-22 Karsten Wiese
  71         Version 0.0.8:
  72         Removed EZUSB Firmware. First Stage Firmwaredownload is now done by tascam-firmware downloader.
  73         See:
  74         http://usb-midi-fw.sourceforge.net/tascam-firmware.tar.gz
  75
  76 2003-06-18 Karsten Wiese
  77         Version 0.0.5:
  78         changed to compile with kernel 2.4.21 and alsa 0.9.4
  79
  80 2002-10-16 Karsten Wiese
  81         Version 0.0.4:
  82         compiles again with alsa-current.
  83         USB_ISO_ASAP not used anymore (most of the time), instead
  84         urb->start_frame is calculated here now, some calls inside usb-driver don't need to happen anymore.
  85
  86         To get the best out of this:
  87         Disable APM-support in the kernel as APM-BIOS calls (once each second) hard disable interrupt for many precious milliseconds.
  88         This helped me much on my slowish PII 400 & PIII 500.
  89         ACPI yet untested but might cause the same bad behaviour.
  90         Use a kernel with lowlatency and preemptiv patches applied.
  91         To autoload snd-usb-midi append a line
  92                 post-install snd-usb-us428 modprobe snd-usb-midi
  93         to /etc/modules.conf.
  94
  95         known problems:
  96         sliders, knobs, lights not yet handled except MASTER Volume slider.
  97         "pcm -c 2" doesn't work. "pcm -c 2 -m direct_interleaved" does.
  98         KDE3: "Enable full duplex operation" deadlocks.
  99
 100
 101 2002-08-31 Karsten Wiese
 102         Version 0.0.3: audio also simplex;
 103         simplifying: iso urbs only 1 packet, melted structs.
 104         ASYNC_UNLINK not used anymore: no more crashes so far.....
 105         for alsa 0.9 rc3.
 106
 107 2002-08-09 Karsten Wiese
 108         Version 0.0.2: midi works with snd-usb-midi, audio (only fullduplex now) with i.e. bristol.
 109         The firmware has been sniffed from win2k us-428 driver 3.09.
 110
 111  *   Copyright (c) 2002 - 2004 Karsten Wiese
 112  *
 113  *   This program is free software; you can redistribute it and/or modify
 114  *   it under the terms of the GNU General Public License as published by
 115  *   the Free Software Foundation; either version 2 of the License, or
 116  *   (at your option) any later version.
 117  *
 118  *   This program is distributed in the hope that it will be useful,
 119  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 120  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 121  *   GNU General Public License for more details.
 122  *
 123  *   You should have received a copy of the GNU General Public License
 124  *   along with this program; if not, write to the Free Software
 125  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 126 */
 127
 128 #include <sound/driver.h>
 129 #include <linux/init.h>
 130 #include <linux/module.h>
 131 #include <linux/moduleparam.h>
 132 #include <linux/interrupt.h>
 133 #include <linux/usb.h>
 134 #include <sound/core.h>
 135 #include <sound/initval.h>
 136 #include <sound/pcm.h>
 137
 138 #include <sound/rawmidi.h>
 139 #include "usx2y.h"
 140 #include "usbusx2y.h"
 141 #include "usX2Yhwdep.h"
 142
 143
 144
 145 MODULE_AUTHOR("Karsten Wiese <annabellesgarden@yahoo.de>");
 146 MODULE_DESCRIPTION("TASCAM "NAME_ALLCAPS" Version 0.8.7.1");
 147 MODULE_LICENSE("GPL");
 148 MODULE_SUPPORTED_DEVICE("{{TASCAM(0x1604), "NAME_ALLCAPS"(0x8001)(0x8005)(0x8007) }}");
 149
 150 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-max */
 151 static char* id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* Id for this card */
 152 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */
 153
 154 module_param_array(index, int, NULL, 0444);
 155 MODULE_PARM_DESC(index, "Index value for "NAME_ALLCAPS".");
 156 module_param_array(id, charp, NULL, 0444);
 157 MODULE_PARM_DESC(id, "ID string for "NAME_ALLCAPS".");
 158 module_param_array(enable, bool, NULL, 0444);
 159 MODULE_PARM_DESC(enable, "Enable "NAME_ALLCAPS".");
 160
 161
 162 static int snd_usX2Y_card_used[SNDRV_CARDS];
 163
 164 static void usX2Y_usb_disconnect(struct usb_device* usb_device, void* ptr);
 165 static void snd_usX2Y_card_private_free(snd_card_t *card);
 166
 167 /*
 168  * pipe 4 is used for switching the lamps, setting samplerate, volumes ....
 169  */
 170 static void i_usX2Y_Out04Int(struct urb* urb, struct pt_regs *regs)
 171 {
 172 #ifdef CONFIG_SND_DEBUG
 173         if (urb->status) {
 174                 int             i;
 175                 usX2Ydev_t*     usX2Y = urb->context;
 176                 for (i = 0; i < 10 && usX2Y->AS04.urb[i] != urb; i++);
 177                 snd_printdd("i_usX2Y_Out04Int() urb %i status=%i\n", i, urb->status);
 178         }
 179 #endif
 180 }
 181
 182 static void i_usX2Y_In04Int(struct urb* urb, struct pt_regs *regs)
 183 {
 184         int                     err = 0;
 185         usX2Ydev_t              *usX2Y = urb->context;
 186         us428ctls_sharedmem_t   *us428ctls = usX2Y->us428ctls_sharedmem;
 187
 188         usX2Y->In04IntCalls++;
 189
 190         if (urb->status) {
 191                 snd_printdd("Interrupt Pipe 4 came back with status=%i\n", urb->status);
 192                 return;
 193         }
 194
 195         //      printk("%i:0x%02X ", 8, (int)((unsigned char*)usX2Y->In04Buf)[8]); Master volume shows 0 here if fader is at max during boot ?!?
 196         if (us428ctls) {
 197                 int diff = -1;
 198                 if (-2 == us428ctls->CtlSnapShotLast) {
 199                         diff = 0;
 200                         memcpy(usX2Y->In04Last, usX2Y->In04Buf, sizeof(usX2Y->In04Last));
 201                         us428ctls->CtlSnapShotLast = -1;
 202                 } else {
 203                         int i;
 204                         for (i = 0; i < 21; i++) {
 205                                 if (usX2Y->In04Last[i] != ((char*)usX2Y->In04Buf)[i]) {
 206                                         if (diff < 0)
 207                                                 diff = i;
 208                                         usX2Y->In04Last[i] = ((char*)usX2Y->In04Buf)[i];
 209                                 }
 210                         }
 211                 }
 212                 if (0 <= diff) {
 213                         int n = us428ctls->CtlSnapShotLast + 1;
 214                         if (n >= N_us428_ctl_BUFS  ||  n < 0)
 215                                 n = 0;
 216                         memcpy(us428ctls->CtlSnapShot + n, usX2Y->In04Buf, sizeof(us428ctls->CtlSnapShot[0]));
 217                         us428ctls->CtlSnapShotDiffersAt[n] = diff;
 218                         us428ctls->CtlSnapShotLast = n;
 219                         wake_up(&usX2Y->us428ctls_wait_queue_head);
 220                 }
 221         }
 222
 223
 224         if (usX2Y->US04) {
 225                 if (0 == usX2Y->US04->submitted)
 226                         do
 227                                 err = usb_submit_urb(usX2Y->US04->urb[usX2Y->US04->submitted++], GFP_ATOMIC);
 228                         while (!err && usX2Y->US04->submitted < usX2Y->US04->len);
 229         } else
 230                 if (us428ctls && us428ctls->p4outLast >= 0 && us428ctls->p4outLast < N_us428_p4out_BUFS) {
 231                         if (us428ctls->p4outLast != us428ctls->p4outSent) {
 232                                 int j, send = us428ctls->p4outSent + 1;
 233                                 if (send >= N_us428_p4out_BUFS)
 234                                         send = 0;
 235                                 for (j = 0; j < URBS_AsyncSeq  &&  !err; ++j)
 236                                         if (0 == usX2Y->AS04.urb[j]->status) {
 237                                                 us428_p4out_t *p4out = us428ctls->p4out + send; // FIXME if more then 1 p4out is new, 1 gets lost.
 238                                                 usb_fill_bulk_urb(usX2Y->AS04.urb[j], usX2Y->chip.dev,
 239                                                                   usb_sndbulkpipe(usX2Y->chip.dev, 0x04), &p4out->val.vol,
 240                                                                   p4out->type == eLT_Light ? sizeof(us428_lights_t) : 5,
 241                                                                   i_usX2Y_Out04Int, usX2Y);
 242                                                 err = usb_submit_urb(usX2Y->AS04.urb[j], GFP_ATOMIC);
 243                                                 us428ctls->p4outSent = send;
 244                                                 break;
 245                                         }
 246                         }
 247                 }
 248
 249         if (err) {
 250                 snd_printk("In04Int() usb_submit_urb err=%i\n", err);
 251         }
 252
 253         urb->dev = usX2Y->chip.dev;
 254         usb_submit_urb(urb, GFP_ATOMIC);
 255 }
 256
 257 /*
 258  * Prepare some urbs
 259  */
 260 int usX2Y_AsyncSeq04_init(usX2Ydev_t* usX2Y)
 261 {
 262         int     err = 0,
 263                 i;
 264
 265         if (NULL == (usX2Y->AS04.buffer = kmalloc(URB_DataLen_AsyncSeq*URBS_AsyncSeq, GFP_KERNEL))) {
 266                 err = -ENOMEM;
 267         } else
 268                 for (i = 0; i < URBS_AsyncSeq; ++i) {
 269                         if (NULL == (usX2Y->AS04.urb[i] = usb_alloc_urb(0, GFP_KERNEL))) {
 270                                 err = -ENOMEM;
 271                                 break;
 272                         }
 273                         usb_fill_bulk_urb(      usX2Y->AS04.urb[i], usX2Y->chip.dev,
 274                                                 usb_sndbulkpipe(usX2Y->chip.dev, 0x04),
 275                                                 usX2Y->AS04.buffer + URB_DataLen_AsyncSeq*i, 0,
 276                                                 i_usX2Y_Out04Int, usX2Y
 277                                 );
 278                 }
 279         return err;
 280 }
 281
 282 int usX2Y_In04_init(usX2Ydev_t* usX2Y)
 283 {
 284         int     err = 0;
 285         if (! (usX2Y->In04urb = usb_alloc_urb(0, GFP_KERNEL)))
 286                 return -ENOMEM;
 287
 288         if (! (usX2Y->In04Buf = kmalloc(21, GFP_KERNEL))) {
 289                 usb_free_urb(usX2Y->In04urb);
 290                 return -ENOMEM;
 291         }
 292
 293         init_waitqueue_head(&usX2Y->In04WaitQueue);
 294         usb_fill_int_urb(usX2Y->In04urb, usX2Y->chip.dev, usb_rcvintpipe(usX2Y->chip.dev, 0x4),
 295                          usX2Y->In04Buf, 21,
 296                          i_usX2Y_In04Int, usX2Y,
 297                          10);
 298         err = usb_submit_urb(usX2Y->In04urb, GFP_KERNEL);
 299         return err;
 300 }
 301
 302 static void usX2Y_unlinkSeq(snd_usX2Y_AsyncSeq_t* S)
 303 {
 304         int     i;
 305         for (i = 0; i < URBS_AsyncSeq; ++i) {
 306                 if (S[i].urb) {
 307                         usb_kill_urb(S->urb[i]);
 308                         usb_free_urb(S->urb[i]);
 309                         S->urb[i] = NULL;
 310                 }
 311         }
 312         kfree(S->buffer);
 313 }
 314
 315
 316 static struct usb_device_id snd_usX2Y_usb_id_table[] = {
 317         {
 318                 .match_flags =  USB_DEVICE_ID_MATCH_DEVICE,
 319                 .idVendor =     0x1604,
 320                 .idProduct =    USB_ID_US428
 321         },
 322         {
 323                 .match_flags =  USB_DEVICE_ID_MATCH_DEVICE,
 324                 .idVendor =     0x1604,
 325                 .idProduct =    USB_ID_US122
 326         },
 327         {
 328                 .match_flags =  USB_DEVICE_ID_MATCH_DEVICE,
 329                 .idVendor =     0x1604,
 330                 .idProduct =    USB_ID_US224
 331         },
 332         { /* terminator */ }
 333 };
 334
 335 static snd_card_t* usX2Y_create_card(struct usb_device* device)
 336 {
 337         int             dev;
 338         snd_card_t*     card;
 339         for (dev = 0; dev < SNDRV_CARDS; ++dev)
 340                 if (enable[dev] && !snd_usX2Y_card_used[dev])
 341                         break;
 342         if (dev >= SNDRV_CARDS)
 343                 return NULL;
 344         card = snd_card_new(index[dev], id[dev], THIS_MODULE, sizeof(usX2Ydev_t));
 345         if (!card)
 346                 return NULL;
 347         snd_usX2Y_card_used[usX2Y(card)->chip.index = dev] = 1;
 348         card->private_free = snd_usX2Y_card_private_free;
 349         usX2Y(card)->chip.dev = device;
 350         usX2Y(card)->chip.card = card;
 351         init_waitqueue_head(&usX2Y(card)->prepare_wait_queue);
 352         init_MUTEX (&usX2Y(card)->prepare_mutex);
 353         INIT_LIST_HEAD(&usX2Y(card)->chip.midi_list);
 354         strcpy(card->driver, "USB "NAME_ALLCAPS"");
 355         sprintf(card->shortname, "TASCAM "NAME_ALLCAPS"");
 356         sprintf(card->longname, "%s (%x:%x if %d at %03d/%03d)",
 357                 card->shortname,
 358                 le16_to_cpu(device->descriptor.idVendor),
 359                 le16_to_cpu(device->descriptor.idProduct),
 360                 0,//us428(card)->usbmidi.ifnum,
 361                 usX2Y(card)->chip.dev->bus->busnum, usX2Y(card)->chip.dev->devnum
 362                 );
 363         snd_card_set_dev(card, &device->dev);
 364         return card;
 365 }
 366
 367
 368 static void* usX2Y_usb_probe(struct usb_device* device, struct usb_interface *intf, const struct usb_device_id* device_id)
 369 {
 370         int             err;
 371         snd_card_t*     card;
 372         if (le16_to_cpu(device->descriptor.idVendor) != 0x1604 ||
 373             (le16_to_cpu(device->descriptor.idProduct) != USB_ID_US122 &&
 374              le16_to_cpu(device->descriptor.idProduct) != USB_ID_US224 &&
 375              le16_to_cpu(device->descriptor.idProduct) != USB_ID_US428) ||
 376             !(card = usX2Y_create_card(device)))
 377                 return NULL;
 378         if ((err = usX2Y_hwdep_new(card, device)) < 0  ||
 379             (err = snd_card_register(card)) < 0) {
 380                 snd_card_free(card);
 381                 return NULL;
 382         }
 383         return card;
 384 }
 385
 386 /*
 387  * new 2.5 USB kernel API
 388  */
 389 static int snd_usX2Y_probe(struct usb_interface *intf, const struct usb_device_id *id)
 390 {
 391         void *chip;
 392         chip = usX2Y_usb_probe(interface_to_usbdev(intf), intf, id);
 393         if (chip) {
 394                 dev_set_drvdata(&intf->dev, chip);
 395                 return 0;
 396         } else
 397                 return -EIO;
 398 }
 399
 400 static void snd_usX2Y_disconnect(struct usb_interface *intf)
 401 {
 402         usX2Y_usb_disconnect(interface_to_usbdev(intf),
 403                                  dev_get_drvdata(&intf->dev));
 404 }
 405
 406 MODULE_DEVICE_TABLE(usb, snd_usX2Y_usb_id_table);
 407 static struct usb_driver snd_usX2Y_usb_driver = {
 408         .owner =        THIS_MODULE,
 409         .name =         "snd-usb-usx2y",
 410         .probe =        snd_usX2Y_probe,
 411         .disconnect =   snd_usX2Y_disconnect,
 412         .id_table =     snd_usX2Y_usb_id_table,
 413 };
 414
 415 static void snd_usX2Y_card_private_free(snd_card_t *card)
 416 {
 417         kfree(usX2Y(card)->In04Buf);
 418         usb_free_urb(usX2Y(card)->In04urb);
 419         if (usX2Y(card)->us428ctls_sharedmem)
 420                 snd_free_pages(usX2Y(card)->us428ctls_sharedmem, sizeof(*usX2Y(card)->us428ctls_sharedmem));
 421         if (usX2Y(card)->chip.index >= 0  &&  usX2Y(card)->chip.index < SNDRV_CARDS)
 422                 snd_usX2Y_card_used[usX2Y(card)->chip.index] = 0;
 423 }
 424
 425 /*
 426  * Frees the device.
 427  */
 428 static void usX2Y_usb_disconnect(struct usb_device* device, void* ptr)
 429 {
 430         if (ptr) {
 431                 usX2Ydev_t* usX2Y = usX2Y((snd_card_t*)ptr);
 432                 struct list_head* p;
 433                 if (usX2Y->chip_status == USX2Y_STAT_CHIP_HUP)  // on 2.6.1 kernel snd_usbmidi_disconnect()
 434                         return;                                 // calls us back. better leave :-) .
 435                 usX2Y->chip.shutdown = 1;
 436                 usX2Y->chip_status = USX2Y_STAT_CHIP_HUP;
 437                 usX2Y_unlinkSeq(&usX2Y->AS04);
 438                 usb_kill_urb(usX2Y->In04urb);
 439                 snd_card_disconnect((snd_card_t*)ptr);
 440                 /* release the midi resources */
 441                 list_for_each(p, &usX2Y->chip.midi_list) {
 442                         snd_usbmidi_disconnect(p, &snd_usX2Y_usb_driver);
 443                 }
 444                 if (usX2Y->us428ctls_sharedmem)
 445                         wake_up(&usX2Y->us428ctls_wait_queue_head);
 446                 snd_card_free_in_thread((snd_card_t*)ptr);
 447         }
 448 }
 449
 450 static int __init snd_usX2Y_module_init(void)
 451 {
 452         return usb_register(&snd_usX2Y_usb_driver);
 453 }
 454
 455 static void __exit snd_usX2Y_module_exit(void)
 456 {
 457         usb_deregister(&snd_usX2Y_usb_driver);
 458 }
 459
 460 module_init(snd_usX2Y_module_init)
 461 module_exit(snd_usX2Y_module_exit)