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-rw-r--r--sound/usb/usx2y/usbusx2y.c466
1 files changed, 466 insertions, 0 deletions
diff --git a/sound/usb/usx2y/usbusx2y.c b/sound/usb/usx2y/usbusx2y.c
new file mode 100644
index 000000000..52f4e6652
--- /dev/null
+++ b/sound/usb/usx2y/usbusx2y.c
@@ -0,0 +1,466 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * usbusx2y.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 <linux/init.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/usb.h>
+#include <sound/core.h>
+#include <sound/initval.h>
+#include <sound/pcm.h>
+
+#include <sound/rawmidi.h>
+#include "usx2y.h"
+#include "usbusx2y.h"
+#include "usX2Yhwdep.h"
+
+MODULE_AUTHOR("Karsten Wiese <annabellesgarden@yahoo.de>");
+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 snd_usx2y_card_private_free(struct snd_card *card);
+static void usx2y_unlinkseq(struct snd_usx2y_async_seq *s);
+
+/*
+ * pipe 4 is used for switching the lamps, setting samplerate, volumes ....
+ */
+static void i_usx2y_out04_int(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("%s urb %i status=%i\n", __func__, i, urb->status);
+ }
+#endif
+}
+
+static void i_usx2y_in04_int(struct urb *urb)
+{
+ int err = 0;
+ struct usx2ydev *usx2y = urb->context;
+ struct us428ctls_sharedmem *us428ctls = usx2y->us428ctls_sharedmem;
+ struct us428_p4out *p4out;
+ int i, j, n, diff, send;
+
+ usx2y->in04_int_calls++;
+
+ 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->in04_buf)[8]); Master volume shows 0 here if fader is at max during boot ?!?
+ if (us428ctls) {
+ diff = -1;
+ if (us428ctls->ctl_snapshot_last == -2) {
+ diff = 0;
+ memcpy(usx2y->in04_last, usx2y->in04_buf, sizeof(usx2y->in04_last));
+ us428ctls->ctl_snapshot_last = -1;
+ } else {
+ for (i = 0; i < 21; i++) {
+ if (usx2y->in04_last[i] != ((char *)usx2y->in04_buf)[i]) {
+ if (diff < 0)
+ diff = i;
+ usx2y->in04_last[i] = ((char *)usx2y->in04_buf)[i];
+ }
+ }
+ }
+ if (diff >= 0) {
+ n = us428ctls->ctl_snapshot_last + 1;
+ if (n >= N_US428_CTL_BUFS || n < 0)
+ n = 0;
+ memcpy(us428ctls->ctl_snapshot + n, usx2y->in04_buf, sizeof(us428ctls->ctl_snapshot[0]));
+ us428ctls->ctl_snapshot_differs_at[n] = diff;
+ us428ctls->ctl_snapshot_last = n;
+ wake_up(&usx2y->us428ctls_wait_queue_head);
+ }
+ }
+
+ if (usx2y->us04) {
+ if (!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->p4out_last >= 0 && us428ctls->p4out_last < N_US428_P4OUT_BUFS) {
+ if (us428ctls->p4out_last != us428ctls->p4out_sent) {
+ send = us428ctls->p4out_sent + 1;
+ if (send >= N_US428_P4OUT_BUFS)
+ send = 0;
+ for (j = 0; j < URBS_ASYNC_SEQ && !err; ++j) {
+ if (!usx2y->as04.urb[j]->status) {
+ 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_out04_int, usx2y);
+ err = usb_submit_urb(usx2y->as04.urb[j], GFP_ATOMIC);
+ us428ctls->p4out_sent = send;
+ break;
+ }
+ }
+ }
+ }
+ }
+
+ if (err)
+ snd_printk(KERN_ERR "in04_int() usb_submit_urb err=%i\n", err);
+
+ urb->dev = usx2y->dev;
+ usb_submit_urb(urb, GFP_ATOMIC);
+}
+
+/*
+ * Prepare some urbs
+ */
+int usx2y_async_seq04_init(struct usx2ydev *usx2y)
+{
+ int err = 0, i;
+
+ if (WARN_ON(usx2y->as04.buffer))
+ return -EBUSY;
+
+ usx2y->as04.buffer = kmalloc_array(URBS_ASYNC_SEQ,
+ URB_DATA_LEN_ASYNC_SEQ, GFP_KERNEL);
+ if (!usx2y->as04.buffer) {
+ err = -ENOMEM;
+ } else {
+ for (i = 0; i < URBS_ASYNC_SEQ; ++i) {
+ usx2y->as04.urb[i] = usb_alloc_urb(0, GFP_KERNEL);
+ if (!usx2y->as04.urb[i]) {
+ err = -ENOMEM;
+ break;
+ }
+ usb_fill_bulk_urb(usx2y->as04.urb[i], usx2y->dev,
+ usb_sndbulkpipe(usx2y->dev, 0x04),
+ usx2y->as04.buffer + URB_DATA_LEN_ASYNC_SEQ * i, 0,
+ i_usx2y_out04_int, usx2y);
+ err = usb_urb_ep_type_check(usx2y->as04.urb[i]);
+ if (err < 0)
+ break;
+ }
+ }
+ if (err)
+ usx2y_unlinkseq(&usx2y->as04);
+ return err;
+}
+
+int usx2y_in04_init(struct usx2ydev *usx2y)
+{
+ int err;
+
+ if (WARN_ON(usx2y->in04_urb))
+ return -EBUSY;
+
+ usx2y->in04_urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!usx2y->in04_urb) {
+ err = -ENOMEM;
+ goto error;
+ }
+
+ usx2y->in04_buf = kmalloc(21, GFP_KERNEL);
+ if (!usx2y->in04_buf) {
+ err = -ENOMEM;
+ goto error;
+ }
+
+ init_waitqueue_head(&usx2y->in04_wait_queue);
+ usb_fill_int_urb(usx2y->in04_urb, usx2y->dev, usb_rcvintpipe(usx2y->dev, 0x4),
+ usx2y->in04_buf, 21,
+ i_usx2y_in04_int, usx2y,
+ 10);
+ if (usb_urb_ep_type_check(usx2y->in04_urb)) {
+ err = -EINVAL;
+ goto error;
+ }
+ return usb_submit_urb(usx2y->in04_urb, GFP_KERNEL);
+
+ error:
+ kfree(usx2y->in04_buf);
+ usb_free_urb(usx2y->in04_urb);
+ usx2y->in04_buf = NULL;
+ usx2y->in04_urb = NULL;
+ return err;
+}
+
+static void usx2y_unlinkseq(struct snd_usx2y_async_seq *s)
+{
+ int i;
+
+ for (i = 0; i < URBS_ASYNC_SEQ; ++i) {
+ if (!s->urb[i])
+ continue;
+ usb_kill_urb(s->urb[i]);
+ usb_free_urb(s->urb[i]);
+ s->urb[i] = NULL;
+ }
+ kfree(s->buffer);
+ s->buffer = NULL;
+}
+
+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 */ }
+};
+MODULE_DEVICE_TABLE(usb, snd_usx2y_usb_id_table);
+
+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);
+ init_waitqueue_head(&usx2y(card)->us428ctls_wait_queue_head);
+ 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 void snd_usx2y_card_private_free(struct snd_card *card)
+{
+ struct usx2ydev *usx2y = usx2y(card);
+
+ kfree(usx2y->in04_buf);
+ usb_free_urb(usx2y->in04_urb);
+ if (usx2y->us428ctls_sharedmem)
+ free_pages_exact(usx2y->us428ctls_sharedmem,
+ US428_SHAREDMEM_PAGES);
+ if (usx2y->card_index >= 0 && usx2y->card_index < SNDRV_CARDS)
+ snd_usx2y_card_used[usx2y->card_index] = 0;
+}
+
+static void snd_usx2y_disconnect(struct usb_interface *intf)
+{
+ struct snd_card *card;
+ struct usx2ydev *usx2y;
+ struct list_head *p;
+
+ card = usb_get_intfdata(intf);
+ if (!card)
+ return;
+ usx2y = usx2y(card);
+ usx2y->chip_status = USX2Y_STAT_CHIP_HUP;
+ usx2y_unlinkseq(&usx2y->as04);
+ usb_kill_urb(usx2y->in04_urb);
+ 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);
+}
+
+static int snd_usx2y_probe(struct usb_interface *intf,
+ const struct usb_device_id *id)
+{
+ struct usb_device *device = interface_to_usbdev(intf);
+ struct snd_card *card;
+ int err;
+
+ 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;
+ err = usx2y_hwdep_new(card, device);
+ if (err < 0)
+ goto error;
+ err = snd_card_register(card);
+ if (err < 0)
+ goto error;
+
+ dev_set_drvdata(&intf->dev, card);
+ return 0;
+
+ error:
+ snd_card_free(card);
+ return err;
+}
+
+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,
+};
+module_usb_driver(snd_usx2y_usb_driver);
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-20 20:23:42 +0000