system/linux
system/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux synced 2024-07-22 03:01:14 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity
linux/sound/usb/usx2y/usbusx2y.c
Christophe JAILLET d13a8f6d8e ALSA: Fix some typo 
Some comments and include guards are not consistent with the name of the
file where they can be found.

This is likely some typo or cut'n'paste issues.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/7b2bcbda298f02a34d46d8b6593daaaed9a09a45.1638602790.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2021-12-06 10:04:05 +01:00

467 lines
13 KiB
C
Raw Blame History

// 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);
Reference in a new issue View git blame Copy permalink