// SPDX-License-Identifier: GPL-2.0-or-later /* * usbusy2y.c - ALSA USB US-428 Driver * 2005-04-14 Karsten Wiese Version 0.8.7.2: Call snd_card_free() instead of snd_card_free_in_thread() to prevent oops with dead keyboard symptom. Tested ok with kernel 2.6.12-rc2. 2004-12-14 Karsten Wiese Version 0.8.7.1: snd_pcm_open for rawusb pcm-devices now returns -EBUSY if called without rawusb's hwdep device being open. 2004-12-02 Karsten Wiese Version 0.8.7: Use macro usb_maxpacket() for portability. 2004-10-26 Karsten Wiese Version 0.8.6: wake_up() process waiting in usX2Y_urbs_start() on error. 2004-10-21 Karsten Wiese Version 0.8.5: nrpacks is runtime or compiletime configurable now with tested values from 1 to 4. 2004-10-03 Karsten Wiese Version 0.8.2: Avoid any possible racing while in prepare callback. 2004-09-30 Karsten Wiese Version 0.8.0: Simplified things and made ohci work again. 2004-09-20 Karsten Wiese Version 0.7.3: Use usb_kill_urb() instead of deprecated (kernel 2.6.9) usb_unlink_urb(). 2004-07-13 Karsten Wiese Version 0.7.1: Don't sleep in START/STOP callbacks anymore. us428 channels C/D not handled just for this version, sorry. 2004-06-21 Karsten Wiese Version 0.6.4: Temporarely suspend midi input to sanely call usb_set_interface() when setting format. 2004-06-12 Karsten Wiese Version 0.6.3: Made it thus the following rule is enforced: "All pcm substreams of one usX2Y have to operate at the same rate & format." 2004-04-06 Karsten Wiese Version 0.6.0: Runs on 2.6.5 kernel without any "--with-debug=" things. us224 reported running. 2004-01-14 Karsten Wiese Version 0.5.1: Runs with 2.6.1 kernel. 2003-12-30 Karsten Wiese Version 0.4.1: Fix 24Bit 4Channel capturing for the us428. 2003-11-27 Karsten Wiese, Martin Langer Version 0.4: us122 support. us224 could be tested by uncommenting the sections containing USB_ID_US224 2003-11-03 Karsten Wiese Version 0.3: 24Bit support. "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. 2003-08-22 Karsten Wiese Version 0.0.8: Removed EZUSB Firmware. First Stage Firmwaredownload is now done by tascam-firmware downloader. See: http://usb-midi-fw.sourceforge.net/tascam-firmware.tar.gz 2003-06-18 Karsten Wiese Version 0.0.5: changed to compile with kernel 2.4.21 and alsa 0.9.4 2002-10-16 Karsten Wiese Version 0.0.4: compiles again with alsa-current. USB_ISO_ASAP not used anymore (most of the time), instead urb->start_frame is calculated here now, some calls inside usb-driver don't need to happen anymore. To get the best out of this: Disable APM-support in the kernel as APM-BIOS calls (once each second) hard disable interrupt for many precious milliseconds. This helped me much on my slowish PII 400 & PIII 500. ACPI yet untested but might cause the same bad behaviour. Use a kernel with lowlatency and preemptiv patches applied. To autoload snd-usb-midi append a line post-install snd-usb-us428 modprobe snd-usb-midi to /etc/modules.conf. known problems: sliders, knobs, lights not yet handled except MASTER Volume slider. "pcm -c 2" doesn't work. "pcm -c 2 -m direct_interleaved" does. KDE3: "Enable full duplex operation" deadlocks. 2002-08-31 Karsten Wiese Version 0.0.3: audio also simplex; simplifying: iso urbs only 1 packet, melted structs. ASYNC_UNLINK not used anymore: no more crashes so far..... for alsa 0.9 rc3. 2002-08-09 Karsten Wiese Version 0.0.2: midi works with snd-usb-midi, audio (only fullduplex now) with i.e. bristol. The firmware has been sniffed from win2k us-428 driver 3.09. * Copyright (c) 2002 - 2004 Karsten Wiese */ #include #include #include #include #include #include #include #include #include #include #include "usx2y.h" #include "usbusx2y.h" #include "usX2Yhwdep.h" MODULE_AUTHOR("Karsten Wiese "); MODULE_DESCRIPTION("TASCAM "NAME_ALLCAPS" Version 0.8.7.2"); MODULE_LICENSE("GPL"); static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-max */ static char* id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* Id for this card */ static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */ module_param_array(index, int, NULL, 0444); MODULE_PARM_DESC(index, "Index value for "NAME_ALLCAPS"."); module_param_array(id, charp, NULL, 0444); MODULE_PARM_DESC(id, "ID string for "NAME_ALLCAPS"."); module_param_array(enable, bool, NULL, 0444); MODULE_PARM_DESC(enable, "Enable "NAME_ALLCAPS"."); static int snd_usX2Y_card_used[SNDRV_CARDS]; static void usX2Y_usb_disconnect(struct usb_device* usb_device, void* ptr); static void snd_usX2Y_card_private_free(struct snd_card *card); /* * pipe 4 is used for switching the lamps, setting samplerate, volumes .... */ static void i_usX2Y_Out04Int(struct urb *urb) { #ifdef CONFIG_SND_DEBUG if (urb->status) { int i; struct usX2Ydev *usX2Y = urb->context; for (i = 0; i < 10 && usX2Y->AS04.urb[i] != urb; i++); snd_printdd("i_usX2Y_Out04Int() urb %i status=%i\n", i, urb->status); } #endif } static void i_usX2Y_In04Int(struct urb *urb) { int err = 0; struct usX2Ydev *usX2Y = urb->context; struct us428ctls_sharedmem *us428ctls = usX2Y->us428ctls_sharedmem; usX2Y->In04IntCalls++; if (urb->status) { snd_printdd("Interrupt Pipe 4 came back with status=%i\n", urb->status); return; } // printk("%i:0x%02X ", 8, (int)((unsigned char*)usX2Y->In04Buf)[8]); Master volume shows 0 here if fader is at max during boot ?!? if (us428ctls) { int diff = -1; if (-2 == us428ctls->CtlSnapShotLast) { diff = 0; memcpy(usX2Y->In04Last, usX2Y->In04Buf, sizeof(usX2Y->In04Last)); us428ctls->CtlSnapShotLast = -1; } else { int i; for (i = 0; i < 21; i++) { if (usX2Y->In04Last[i] != ((char*)usX2Y->In04Buf)[i]) { if (diff < 0) diff = i; usX2Y->In04Last[i] = ((char*)usX2Y->In04Buf)[i]; } } } if (0 <= diff) { int n = us428ctls->CtlSnapShotLast + 1; if (n >= N_us428_ctl_BUFS || n < 0) n = 0; memcpy(us428ctls->CtlSnapShot + n, usX2Y->In04Buf, sizeof(us428ctls->CtlSnapShot[0])); us428ctls->CtlSnapShotDiffersAt[n] = diff; us428ctls->CtlSnapShotLast = n; wake_up(&usX2Y->us428ctls_wait_queue_head); } } if (usX2Y->US04) { if (0 == usX2Y->US04->submitted) do { err = usb_submit_urb(usX2Y->US04->urb[usX2Y->US04->submitted++], GFP_ATOMIC); } while (!err && usX2Y->US04->submitted < usX2Y->US04->len); } else if (us428ctls && us428ctls->p4outLast >= 0 && us428ctls->p4outLast < N_us428_p4out_BUFS) { if (us428ctls->p4outLast != us428ctls->p4outSent) { int j, send = us428ctls->p4outSent + 1; if (send >= N_us428_p4out_BUFS) send = 0; for (j = 0; j < URBS_AsyncSeq && !err; ++j) if (0 == usX2Y->AS04.urb[j]->status) { struct us428_p4out *p4out = us428ctls->p4out + send; // FIXME if more than 1 p4out is new, 1 gets lost. usb_fill_bulk_urb(usX2Y->AS04.urb[j], usX2Y->dev, usb_sndbulkpipe(usX2Y->dev, 0x04), &p4out->val.vol, p4out->type == eLT_Light ? sizeof(struct us428_lights) : 5, i_usX2Y_Out04Int, usX2Y); err = usb_submit_urb(usX2Y->AS04.urb[j], GFP_ATOMIC); us428ctls->p4outSent = send; break; } } } if (err) snd_printk(KERN_ERR "In04Int() usb_submit_urb err=%i\n", err); urb->dev = usX2Y->dev; usb_submit_urb(urb, GFP_ATOMIC); } /* * Prepare some urbs */ int usX2Y_AsyncSeq04_init(struct usX2Ydev *usX2Y) { int err = 0, i; usX2Y->AS04.buffer = kmalloc_array(URBS_AsyncSeq, URB_DataLen_AsyncSeq, GFP_KERNEL); if (NULL == usX2Y->AS04.buffer) { err = -ENOMEM; } else for (i = 0; i < URBS_AsyncSeq; ++i) { if (NULL == (usX2Y->AS04.urb[i] = usb_alloc_urb(0, GFP_KERNEL))) { err = -ENOMEM; break; } usb_fill_bulk_urb( usX2Y->AS04.urb[i], usX2Y->dev, usb_sndbulkpipe(usX2Y->dev, 0x04), usX2Y->AS04.buffer + URB_DataLen_AsyncSeq*i, 0, i_usX2Y_Out04Int, usX2Y ); err = usb_urb_ep_type_check(usX2Y->AS04.urb[i]); if (err < 0) break; } return err; } int usX2Y_In04_init(struct usX2Ydev *usX2Y) { if (! (usX2Y->In04urb = usb_alloc_urb(0, GFP_KERNEL))) return -ENOMEM; if (! (usX2Y->In04Buf = kmalloc(21, GFP_KERNEL))) return -ENOMEM; init_waitqueue_head(&usX2Y->In04WaitQueue); usb_fill_int_urb(usX2Y->In04urb, usX2Y->dev, usb_rcvintpipe(usX2Y->dev, 0x4), usX2Y->In04Buf, 21, i_usX2Y_In04Int, usX2Y, 10); if (usb_urb_ep_type_check(usX2Y->In04urb)) return -EINVAL; return usb_submit_urb(usX2Y->In04urb, GFP_KERNEL); } static void usX2Y_unlinkSeq(struct snd_usX2Y_AsyncSeq *S) { int i; for (i = 0; i < URBS_AsyncSeq; ++i) { usb_kill_urb(S->urb[i]); usb_free_urb(S->urb[i]); S->urb[i] = NULL; } kfree(S->buffer); } static const struct usb_device_id snd_usX2Y_usb_id_table[] = { { .match_flags = USB_DEVICE_ID_MATCH_DEVICE, .idVendor = 0x1604, .idProduct = USB_ID_US428 }, { .match_flags = USB_DEVICE_ID_MATCH_DEVICE, .idVendor = 0x1604, .idProduct = USB_ID_US122 }, { .match_flags = USB_DEVICE_ID_MATCH_DEVICE, .idVendor = 0x1604, .idProduct = USB_ID_US224 }, { /* terminator */ } }; static int usX2Y_create_card(struct usb_device *device, struct usb_interface *intf, struct snd_card **cardp) { int dev; struct snd_card * card; int err; for (dev = 0; dev < SNDRV_CARDS; ++dev) if (enable[dev] && !snd_usX2Y_card_used[dev]) break; if (dev >= SNDRV_CARDS) return -ENODEV; err = snd_card_new(&intf->dev, index[dev], id[dev], THIS_MODULE, sizeof(struct usX2Ydev), &card); if (err < 0) return err; snd_usX2Y_card_used[usX2Y(card)->card_index = dev] = 1; card->private_free = snd_usX2Y_card_private_free; usX2Y(card)->dev = device; init_waitqueue_head(&usX2Y(card)->prepare_wait_queue); mutex_init(&usX2Y(card)->pcm_mutex); INIT_LIST_HEAD(&usX2Y(card)->midi_list); strcpy(card->driver, "USB "NAME_ALLCAPS""); sprintf(card->shortname, "TASCAM "NAME_ALLCAPS""); sprintf(card->longname, "%s (%x:%x if %d at %03d/%03d)", card->shortname, le16_to_cpu(device->descriptor.idVendor), le16_to_cpu(device->descriptor.idProduct), 0,//us428(card)->usbmidi.ifnum, usX2Y(card)->dev->bus->busnum, usX2Y(card)->dev->devnum ); *cardp = card; return 0; } static int usX2Y_usb_probe(struct usb_device *device, struct usb_interface *intf, const struct usb_device_id *device_id, struct snd_card **cardp) { int err; struct snd_card * card; *cardp = NULL; if (le16_to_cpu(device->descriptor.idVendor) != 0x1604 || (le16_to_cpu(device->descriptor.idProduct) != USB_ID_US122 && le16_to_cpu(device->descriptor.idProduct) != USB_ID_US224 && le16_to_cpu(device->descriptor.idProduct) != USB_ID_US428)) return -EINVAL; err = usX2Y_create_card(device, intf, &card); if (err < 0) return err; if ((err = usX2Y_hwdep_new(card, device)) < 0 || (err = snd_card_register(card)) < 0) { snd_card_free(card); return err; } *cardp = card; return 0; } /* * new 2.5 USB kernel API */ static int snd_usX2Y_probe(struct usb_interface *intf, const struct usb_device_id *id) { struct snd_card *card; int err; err = usX2Y_usb_probe(interface_to_usbdev(intf), intf, id, &card); if (err < 0) return err; dev_set_drvdata(&intf->dev, card); return 0; } static void snd_usX2Y_disconnect(struct usb_interface *intf) { usX2Y_usb_disconnect(interface_to_usbdev(intf), usb_get_intfdata(intf)); } MODULE_DEVICE_TABLE(usb, snd_usX2Y_usb_id_table); static struct usb_driver snd_usX2Y_usb_driver = { .name = "snd-usb-usx2y", .probe = snd_usX2Y_probe, .disconnect = snd_usX2Y_disconnect, .id_table = snd_usX2Y_usb_id_table, }; static void snd_usX2Y_card_private_free(struct snd_card *card) { kfree(usX2Y(card)->In04Buf); usb_free_urb(usX2Y(card)->In04urb); if (usX2Y(card)->us428ctls_sharedmem) free_pages_exact(usX2Y(card)->us428ctls_sharedmem, sizeof(*usX2Y(card)->us428ctls_sharedmem)); if (usX2Y(card)->card_index >= 0 && usX2Y(card)->card_index < SNDRV_CARDS) snd_usX2Y_card_used[usX2Y(card)->card_index] = 0; } /* * Frees the device. */ static void usX2Y_usb_disconnect(struct usb_device *device, void* ptr) { if (ptr) { struct snd_card *card = ptr; struct usX2Ydev *usX2Y = usX2Y(card); struct list_head *p; usX2Y->chip_status = USX2Y_STAT_CHIP_HUP; usX2Y_unlinkSeq(&usX2Y->AS04); usb_kill_urb(usX2Y->In04urb); snd_card_disconnect(card); /* release the midi resources */ list_for_each(p, &usX2Y->midi_list) { snd_usbmidi_disconnect(p); } if (usX2Y->us428ctls_sharedmem) wake_up(&usX2Y->us428ctls_wait_queue_head); snd_card_free(card); } } module_usb_driver(snd_usX2Y_usb_driver);