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466 lines
13 KiB
466 lines
13 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* usbusy2y.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 <[email protected]>"); |
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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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.idVendor = 0x1604, |
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.idProduct = USB_ID_US428 |
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}, |
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{ |
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.match_flags = USB_DEVICE_ID_MATCH_DEVICE, |
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.idVendor = 0x1604, |
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.idProduct = USB_ID_US122 |
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}, |
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{ |
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.match_flags = USB_DEVICE_ID_MATCH_DEVICE, |
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.idVendor = 0x1604, |
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.idProduct = USB_ID_US224 |
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}, |
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{ /* terminator */ } |
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}; |
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MODULE_DEVICE_TABLE(usb, snd_usx2y_usb_id_table); |
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static int usx2y_create_card(struct usb_device *device, |
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struct usb_interface *intf, |
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struct snd_card **cardp) |
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{ |
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int dev; |
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struct snd_card *card; |
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int err; |
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for (dev = 0; dev < SNDRV_CARDS; ++dev) |
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if (enable[dev] && !snd_usx2y_card_used[dev]) |
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break; |
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if (dev >= SNDRV_CARDS) |
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return -ENODEV; |
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err = snd_card_new(&intf->dev, index[dev], id[dev], THIS_MODULE, |
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sizeof(struct usx2ydev), &card); |
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if (err < 0) |
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return err; |
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snd_usx2y_card_used[usx2y(card)->card_index = dev] = 1; |
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card->private_free = snd_usx2y_card_private_free; |
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usx2y(card)->dev = device; |
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init_waitqueue_head(&usx2y(card)->prepare_wait_queue); |
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init_waitqueue_head(&usx2y(card)->us428ctls_wait_queue_head); |
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mutex_init(&usx2y(card)->pcm_mutex); |
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INIT_LIST_HEAD(&usx2y(card)->midi_list); |
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strcpy(card->driver, "USB "NAME_ALLCAPS""); |
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sprintf(card->shortname, "TASCAM "NAME_ALLCAPS""); |
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sprintf(card->longname, "%s (%x:%x if %d at %03d/%03d)", |
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card->shortname, |
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le16_to_cpu(device->descriptor.idVendor), |
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le16_to_cpu(device->descriptor.idProduct), |
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0,//us428(card)->usbmidi.ifnum, |
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usx2y(card)->dev->bus->busnum, usx2y(card)->dev->devnum); |
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*cardp = card; |
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return 0; |
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} |
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static void snd_usx2y_card_private_free(struct snd_card *card) |
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{ |
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struct usx2ydev *usx2y = usx2y(card); |
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kfree(usx2y->in04_buf); |
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usb_free_urb(usx2y->in04_urb); |
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if (usx2y->us428ctls_sharedmem) |
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free_pages_exact(usx2y->us428ctls_sharedmem, |
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US428_SHAREDMEM_PAGES); |
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if (usx2y->card_index >= 0 && usx2y->card_index < SNDRV_CARDS) |
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snd_usx2y_card_used[usx2y->card_index] = 0; |
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} |
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static void snd_usx2y_disconnect(struct usb_interface *intf) |
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{ |
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struct snd_card *card; |
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struct usx2ydev *usx2y; |
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struct list_head *p; |
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card = usb_get_intfdata(intf); |
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if (!card) |
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return; |
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usx2y = usx2y(card); |
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usx2y->chip_status = USX2Y_STAT_CHIP_HUP; |
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usx2y_unlinkseq(&usx2y->as04); |
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usb_kill_urb(usx2y->in04_urb); |
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snd_card_disconnect(card); |
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/* release the midi resources */ |
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list_for_each(p, &usx2y->midi_list) { |
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snd_usbmidi_disconnect(p); |
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} |
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if (usx2y->us428ctls_sharedmem) |
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wake_up(&usx2y->us428ctls_wait_queue_head); |
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snd_card_free(card); |
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} |
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static int snd_usx2y_probe(struct usb_interface *intf, |
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const struct usb_device_id *id) |
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{ |
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struct usb_device *device = interface_to_usbdev(intf); |
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struct snd_card *card; |
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int err; |
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if (le16_to_cpu(device->descriptor.idVendor) != 0x1604 || |
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(le16_to_cpu(device->descriptor.idProduct) != USB_ID_US122 && |
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le16_to_cpu(device->descriptor.idProduct) != USB_ID_US224 && |
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le16_to_cpu(device->descriptor.idProduct) != USB_ID_US428)) |
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return -EINVAL; |
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err = usx2y_create_card(device, intf, &card); |
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if (err < 0) |
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return err; |
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err = usx2y_hwdep_new(card, device); |
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if (err < 0) |
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goto error; |
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err = snd_card_register(card); |
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if (err < 0) |
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goto error; |
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dev_set_drvdata(&intf->dev, card); |
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return 0; |
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error: |
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snd_card_free(card); |
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return err; |
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} |
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static struct usb_driver snd_usx2y_usb_driver = { |
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.name = "snd-usb-usx2y", |
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.probe = snd_usx2y_probe, |
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.disconnect = snd_usx2y_disconnect, |
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.id_table = snd_usx2y_usb_id_table, |
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}; |
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module_usb_driver(snd_usx2y_usb_driver);
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