467 lines
13 KiB
C
467 lines
13 KiB
C
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// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* usbusx2y.c - ALSA USB US-428 Driver
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*
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2005-04-14 Karsten Wiese
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Version 0.8.7.2:
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Call snd_card_free() instead of snd_card_free_in_thread() to prevent oops with dead keyboard symptom.
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Tested ok with kernel 2.6.12-rc2.
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2004-12-14 Karsten Wiese
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Version 0.8.7.1:
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snd_pcm_open for rawusb pcm-devices now returns -EBUSY if called without rawusb's hwdep device being open.
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2004-12-02 Karsten Wiese
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Version 0.8.7:
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Use macro usb_maxpacket() for portability.
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2004-10-26 Karsten Wiese
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Version 0.8.6:
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wake_up() process waiting in usx2y_urbs_start() on error.
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2004-10-21 Karsten Wiese
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Version 0.8.5:
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nrpacks is runtime or compiletime configurable now with tested values from 1 to 4.
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2004-10-03 Karsten Wiese
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Version 0.8.2:
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Avoid any possible racing while in prepare callback.
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2004-09-30 Karsten Wiese
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Version 0.8.0:
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Simplified things and made ohci work again.
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2004-09-20 Karsten Wiese
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Version 0.7.3:
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Use usb_kill_urb() instead of deprecated (kernel 2.6.9) usb_unlink_urb().
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2004-07-13 Karsten Wiese
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Version 0.7.1:
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Don't sleep in START/STOP callbacks anymore.
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us428 channels C/D not handled just for this version, sorry.
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2004-06-21 Karsten Wiese
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Version 0.6.4:
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Temporarely suspend midi input
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to sanely call usb_set_interface() when setting format.
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2004-06-12 Karsten Wiese
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Version 0.6.3:
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Made it thus the following rule is enforced:
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"All pcm substreams of one usx2y have to operate at the same rate & format."
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2004-04-06 Karsten Wiese
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Version 0.6.0:
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Runs on 2.6.5 kernel without any "--with-debug=" things.
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us224 reported running.
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2004-01-14 Karsten Wiese
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Version 0.5.1:
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Runs with 2.6.1 kernel.
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2003-12-30 Karsten Wiese
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Version 0.4.1:
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Fix 24Bit 4Channel capturing for the us428.
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2003-11-27 Karsten Wiese, Martin Langer
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Version 0.4:
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us122 support.
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us224 could be tested by uncommenting the sections containing USB_ID_US224
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2003-11-03 Karsten Wiese
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Version 0.3:
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24Bit support.
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"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.
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2003-08-22 Karsten Wiese
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Version 0.0.8:
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Removed EZUSB Firmware. First Stage Firmwaredownload is now done by tascam-firmware downloader.
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See:
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http://usb-midi-fw.sourceforge.net/tascam-firmware.tar.gz
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2003-06-18 Karsten Wiese
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Version 0.0.5:
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changed to compile with kernel 2.4.21 and alsa 0.9.4
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2002-10-16 Karsten Wiese
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Version 0.0.4:
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compiles again with alsa-current.
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USB_ISO_ASAP not used anymore (most of the time), instead
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urb->start_frame is calculated here now, some calls inside usb-driver don't need to happen anymore.
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To get the best out of this:
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Disable APM-support in the kernel as APM-BIOS calls (once each second) hard disable interrupt for many precious milliseconds.
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This helped me much on my slowish PII 400 & PIII 500.
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ACPI yet untested but might cause the same bad behaviour.
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Use a kernel with lowlatency and preemptiv patches applied.
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To autoload snd-usb-midi append a line
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post-install snd-usb-us428 modprobe snd-usb-midi
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to /etc/modules.conf.
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known problems:
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sliders, knobs, lights not yet handled except MASTER Volume slider.
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"pcm -c 2" doesn't work. "pcm -c 2 -m direct_interleaved" does.
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KDE3: "Enable full duplex operation" deadlocks.
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2002-08-31 Karsten Wiese
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Version 0.0.3: audio also simplex;
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simplifying: iso urbs only 1 packet, melted structs.
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ASYNC_UNLINK not used anymore: no more crashes so far.....
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for alsa 0.9 rc3.
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2002-08-09 Karsten Wiese
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Version 0.0.2: midi works with snd-usb-midi, audio (only fullduplex now) with i.e. bristol.
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The firmware has been sniffed from win2k us-428 driver 3.09.
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* Copyright (c) 2002 - 2004 Karsten Wiese
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*/
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#include <linux/init.h>
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/slab.h>
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#include <linux/interrupt.h>
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#include <linux/usb.h>
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#include <sound/core.h>
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#include <sound/initval.h>
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#include <sound/pcm.h>
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#include <sound/rawmidi.h>
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#include "usx2y.h"
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#include "usbusx2y.h"
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#include "usX2Yhwdep.h"
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MODULE_AUTHOR("Karsten Wiese <annabellesgarden@yahoo.de>");
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MODULE_DESCRIPTION("TASCAM "NAME_ALLCAPS" Version 0.8.7.2");
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MODULE_LICENSE("GPL");
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static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-max */
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static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* Id for this card */
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static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */
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module_param_array(index, int, NULL, 0444);
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MODULE_PARM_DESC(index, "Index value for "NAME_ALLCAPS".");
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module_param_array(id, charp, NULL, 0444);
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MODULE_PARM_DESC(id, "ID string for "NAME_ALLCAPS".");
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module_param_array(enable, bool, NULL, 0444);
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MODULE_PARM_DESC(enable, "Enable "NAME_ALLCAPS".");
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static int snd_usx2y_card_used[SNDRV_CARDS];
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static void snd_usx2y_card_private_free(struct snd_card *card);
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static void usx2y_unlinkseq(struct snd_usx2y_async_seq *s);
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/*
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* pipe 4 is used for switching the lamps, setting samplerate, volumes ....
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*/
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static void i_usx2y_out04_int(struct urb *urb)
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{
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#ifdef CONFIG_SND_DEBUG
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if (urb->status) {
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int i;
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struct usx2ydev *usx2y = urb->context;
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for (i = 0; i < 10 && usx2y->as04.urb[i] != urb; i++)
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;
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snd_printdd("%s urb %i status=%i\n", __func__, i, urb->status);
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}
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#endif
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}
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static void i_usx2y_in04_int(struct urb *urb)
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{
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int err = 0;
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struct usx2ydev *usx2y = urb->context;
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struct us428ctls_sharedmem *us428ctls = usx2y->us428ctls_sharedmem;
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struct us428_p4out *p4out;
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int i, j, n, diff, send;
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usx2y->in04_int_calls++;
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if (urb->status) {
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snd_printdd("Interrupt Pipe 4 came back with status=%i\n", urb->status);
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return;
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}
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// printk("%i:0x%02X ", 8, (int)((unsigned char*)usx2y->in04_buf)[8]); Master volume shows 0 here if fader is at max during boot ?!?
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if (us428ctls) {
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diff = -1;
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if (us428ctls->ctl_snapshot_last == -2) {
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diff = 0;
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memcpy(usx2y->in04_last, usx2y->in04_buf, sizeof(usx2y->in04_last));
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us428ctls->ctl_snapshot_last = -1;
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} else {
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for (i = 0; i < 21; i++) {
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if (usx2y->in04_last[i] != ((char *)usx2y->in04_buf)[i]) {
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if (diff < 0)
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diff = i;
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usx2y->in04_last[i] = ((char *)usx2y->in04_buf)[i];
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}
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}
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}
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if (diff >= 0) {
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n = us428ctls->ctl_snapshot_last + 1;
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if (n >= N_US428_CTL_BUFS || n < 0)
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n = 0;
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memcpy(us428ctls->ctl_snapshot + n, usx2y->in04_buf, sizeof(us428ctls->ctl_snapshot[0]));
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us428ctls->ctl_snapshot_differs_at[n] = diff;
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us428ctls->ctl_snapshot_last = n;
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wake_up(&usx2y->us428ctls_wait_queue_head);
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}
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}
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if (usx2y->us04) {
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if (!usx2y->us04->submitted) {
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do {
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err = usb_submit_urb(usx2y->us04->urb[usx2y->us04->submitted++], GFP_ATOMIC);
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} while (!err && usx2y->us04->submitted < usx2y->us04->len);
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}
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} else {
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if (us428ctls && us428ctls->p4out_last >= 0 && us428ctls->p4out_last < N_US428_P4OUT_BUFS) {
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if (us428ctls->p4out_last != us428ctls->p4out_sent) {
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send = us428ctls->p4out_sent + 1;
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if (send >= N_US428_P4OUT_BUFS)
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send = 0;
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for (j = 0; j < URBS_ASYNC_SEQ && !err; ++j) {
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if (!usx2y->as04.urb[j]->status) {
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p4out = us428ctls->p4out + send; // FIXME if more than 1 p4out is new, 1 gets lost.
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usb_fill_bulk_urb(usx2y->as04.urb[j], usx2y->dev,
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usb_sndbulkpipe(usx2y->dev, 0x04), &p4out->val.vol,
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p4out->type == ELT_LIGHT ? sizeof(struct us428_lights) : 5,
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i_usx2y_out04_int, usx2y);
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err = usb_submit_urb(usx2y->as04.urb[j], GFP_ATOMIC);
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us428ctls->p4out_sent = send;
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break;
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}
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}
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}
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}
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}
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if (err)
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snd_printk(KERN_ERR "in04_int() usb_submit_urb err=%i\n", err);
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urb->dev = usx2y->dev;
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usb_submit_urb(urb, GFP_ATOMIC);
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}
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/*
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* Prepare some urbs
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*/
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int usx2y_async_seq04_init(struct usx2ydev *usx2y)
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{
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int err = 0, i;
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if (WARN_ON(usx2y->as04.buffer))
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return -EBUSY;
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usx2y->as04.buffer = kmalloc_array(URBS_ASYNC_SEQ,
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URB_DATA_LEN_ASYNC_SEQ, GFP_KERNEL);
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if (!usx2y->as04.buffer) {
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err = -ENOMEM;
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} else {
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for (i = 0; i < URBS_ASYNC_SEQ; ++i) {
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usx2y->as04.urb[i] = usb_alloc_urb(0, GFP_KERNEL);
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if (!usx2y->as04.urb[i]) {
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err = -ENOMEM;
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break;
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}
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usb_fill_bulk_urb(usx2y->as04.urb[i], usx2y->dev,
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usb_sndbulkpipe(usx2y->dev, 0x04),
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usx2y->as04.buffer + URB_DATA_LEN_ASYNC_SEQ * i, 0,
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i_usx2y_out04_int, usx2y);
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err = usb_urb_ep_type_check(usx2y->as04.urb[i]);
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if (err < 0)
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break;
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}
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}
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if (err)
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usx2y_unlinkseq(&usx2y->as04);
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return err;
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}
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int usx2y_in04_init(struct usx2ydev *usx2y)
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{
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int err;
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if (WARN_ON(usx2y->in04_urb))
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return -EBUSY;
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usx2y->in04_urb = usb_alloc_urb(0, GFP_KERNEL);
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if (!usx2y->in04_urb) {
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err = -ENOMEM;
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goto error;
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}
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usx2y->in04_buf = kmalloc(21, GFP_KERNEL);
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if (!usx2y->in04_buf) {
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err = -ENOMEM;
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goto error;
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}
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init_waitqueue_head(&usx2y->in04_wait_queue);
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usb_fill_int_urb(usx2y->in04_urb, usx2y->dev, usb_rcvintpipe(usx2y->dev, 0x4),
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usx2y->in04_buf, 21,
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i_usx2y_in04_int, usx2y,
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10);
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if (usb_urb_ep_type_check(usx2y->in04_urb)) {
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err = -EINVAL;
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goto error;
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}
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return usb_submit_urb(usx2y->in04_urb, GFP_KERNEL);
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error:
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kfree(usx2y->in04_buf);
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usb_free_urb(usx2y->in04_urb);
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usx2y->in04_buf = NULL;
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usx2y->in04_urb = NULL;
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return err;
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}
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static void usx2y_unlinkseq(struct snd_usx2y_async_seq *s)
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{
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int i;
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for (i = 0; i < URBS_ASYNC_SEQ; ++i) {
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if (!s->urb[i])
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continue;
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usb_kill_urb(s->urb[i]);
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usb_free_urb(s->urb[i]);
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s->urb[i] = NULL;
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}
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kfree(s->buffer);
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s->buffer = NULL;
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}
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static const struct usb_device_id snd_usx2y_usb_id_table[] = {
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{
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.match_flags = USB_DEVICE_ID_MATCH_DEVICE,
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|
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.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);
|