forked from Minki/linux
230cd5e248
USB generic driver,USB USX2Y Without this patch, some usb kobjects, which are parents to the usx2y's kobjects can be freed before the usx2y's. This led to an oops in get_kobj_path_length() and a dead keyboard, when the usx2y's kobjects were freed. The patch ensures the correct sequence. Tested ok on kernel 2.6.12-rc2. Signed-off-by: Karsten Wiese <annabellesgarden@yahoo.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
465 lines
13 KiB
C
465 lines
13 KiB
C
/*
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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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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <sound/driver.h>
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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/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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MODULE_SUPPORTED_DEVICE("{{TASCAM(0x1604), "NAME_ALLCAPS"(0x8001)(0x8005)(0x8007) }}");
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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 int 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 usX2Y_usb_disconnect(struct usb_device* usb_device, void* ptr);
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static void snd_usX2Y_card_private_free(snd_card_t *card);
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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_Out04Int(struct urb* urb, struct pt_regs *regs)
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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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usX2Ydev_t* usX2Y = urb->context;
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for (i = 0; i < 10 && usX2Y->AS04.urb[i] != urb; i++);
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snd_printdd("i_usX2Y_Out04Int() urb %i status=%i\n", i, urb->status);
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}
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#endif
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}
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static void i_usX2Y_In04Int(struct urb* urb, struct pt_regs *regs)
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{
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int err = 0;
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usX2Ydev_t *usX2Y = urb->context;
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us428ctls_sharedmem_t *us428ctls = usX2Y->us428ctls_sharedmem;
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usX2Y->In04IntCalls++;
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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->In04Buf)[8]); Master volume shows 0 here if fader is at max during boot ?!?
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if (us428ctls) {
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int diff = -1;
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if (-2 == us428ctls->CtlSnapShotLast) {
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diff = 0;
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memcpy(usX2Y->In04Last, usX2Y->In04Buf, sizeof(usX2Y->In04Last));
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us428ctls->CtlSnapShotLast = -1;
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} else {
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int i;
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for (i = 0; i < 21; i++) {
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if (usX2Y->In04Last[i] != ((char*)usX2Y->In04Buf)[i]) {
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if (diff < 0)
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diff = i;
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usX2Y->In04Last[i] = ((char*)usX2Y->In04Buf)[i];
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}
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}
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}
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if (0 <= diff) {
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int n = us428ctls->CtlSnapShotLast + 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->CtlSnapShot + n, usX2Y->In04Buf, sizeof(us428ctls->CtlSnapShot[0]));
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us428ctls->CtlSnapShotDiffersAt[n] = diff;
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us428ctls->CtlSnapShotLast = 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 (0 == 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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} else
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if (us428ctls && us428ctls->p4outLast >= 0 && us428ctls->p4outLast < N_us428_p4out_BUFS) {
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if (us428ctls->p4outLast != us428ctls->p4outSent) {
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int j, send = us428ctls->p4outSent + 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_AsyncSeq && !err; ++j)
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if (0 == usX2Y->AS04.urb[j]->status) {
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us428_p4out_t *p4out = us428ctls->p4out + send; // FIXME if more then 1 p4out is new, 1 gets lost.
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usb_fill_bulk_urb(usX2Y->AS04.urb[j], usX2Y->chip.dev,
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usb_sndbulkpipe(usX2Y->chip.dev, 0x04), &p4out->val.vol,
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p4out->type == eLT_Light ? sizeof(us428_lights_t) : 5,
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i_usX2Y_Out04Int, usX2Y);
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err = usb_submit_urb(usX2Y->AS04.urb[j], GFP_ATOMIC);
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us428ctls->p4outSent = send;
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break;
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}
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}
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}
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if (err) {
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snd_printk("In04Int() usb_submit_urb err=%i\n", err);
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}
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urb->dev = usX2Y->chip.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_AsyncSeq04_init(usX2Ydev_t* usX2Y)
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{
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int err = 0,
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i;
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if (NULL == (usX2Y->AS04.buffer = kmalloc(URB_DataLen_AsyncSeq*URBS_AsyncSeq, GFP_KERNEL))) {
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err = -ENOMEM;
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} else
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for (i = 0; i < URBS_AsyncSeq; ++i) {
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if (NULL == (usX2Y->AS04.urb[i] = usb_alloc_urb(0, GFP_KERNEL))) {
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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->chip.dev,
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usb_sndbulkpipe(usX2Y->chip.dev, 0x04),
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usX2Y->AS04.buffer + URB_DataLen_AsyncSeq*i, 0,
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i_usX2Y_Out04Int, usX2Y
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);
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}
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return err;
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}
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int usX2Y_In04_init(usX2Ydev_t* usX2Y)
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{
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int err = 0;
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if (! (usX2Y->In04urb = usb_alloc_urb(0, GFP_KERNEL)))
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return -ENOMEM;
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if (! (usX2Y->In04Buf = kmalloc(21, GFP_KERNEL))) {
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usb_free_urb(usX2Y->In04urb);
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return -ENOMEM;
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}
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init_waitqueue_head(&usX2Y->In04WaitQueue);
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usb_fill_int_urb(usX2Y->In04urb, usX2Y->chip.dev, usb_rcvintpipe(usX2Y->chip.dev, 0x4),
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usX2Y->In04Buf, 21,
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i_usX2Y_In04Int, usX2Y,
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10);
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err = usb_submit_urb(usX2Y->In04urb, GFP_KERNEL);
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return err;
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}
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static void usX2Y_unlinkSeq(snd_usX2Y_AsyncSeq_t* S)
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{
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int i;
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for (i = 0; i < URBS_AsyncSeq; ++i) {
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if (S[i].urb) {
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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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}
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kfree(S->buffer);
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}
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static 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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static snd_card_t* usX2Y_create_card(struct usb_device* device)
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{
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int dev;
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snd_card_t* card;
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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 NULL;
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card = snd_card_new(index[dev], id[dev], THIS_MODULE, sizeof(usX2Ydev_t));
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if (!card)
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return NULL;
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snd_usX2Y_card_used[usX2Y(card)->chip.index = dev] = 1;
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card->private_free = snd_usX2Y_card_private_free;
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usX2Y(card)->chip.dev = device;
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usX2Y(card)->chip.card = card;
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init_waitqueue_head(&usX2Y(card)->prepare_wait_queue);
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init_MUTEX (&usX2Y(card)->prepare_mutex);
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INIT_LIST_HEAD(&usX2Y(card)->chip.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)->chip.dev->bus->busnum, usX2Y(card)->chip.dev->devnum
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);
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snd_card_set_dev(card, &device->dev);
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return card;
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}
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static void* usX2Y_usb_probe(struct usb_device* device, struct usb_interface *intf, const struct usb_device_id* device_id)
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{
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int err;
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snd_card_t* card;
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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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!(card = usX2Y_create_card(device)))
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return NULL;
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if ((err = usX2Y_hwdep_new(card, device)) < 0 ||
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(err = snd_card_register(card)) < 0) {
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snd_card_free(card);
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return NULL;
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}
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return card;
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}
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/*
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* new 2.5 USB kernel API
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*/
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static int snd_usX2Y_probe(struct usb_interface *intf, const struct usb_device_id *id)
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{
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void *chip;
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chip = usX2Y_usb_probe(interface_to_usbdev(intf), intf, id);
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if (chip) {
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dev_set_drvdata(&intf->dev, chip);
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return 0;
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} else
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return -EIO;
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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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usX2Y_usb_disconnect(interface_to_usbdev(intf),
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dev_get_drvdata(&intf->dev));
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}
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MODULE_DEVICE_TABLE(usb, snd_usX2Y_usb_id_table);
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static struct usb_driver snd_usX2Y_usb_driver = {
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.owner = THIS_MODULE,
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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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static void snd_usX2Y_card_private_free(snd_card_t *card)
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{
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kfree(usX2Y(card)->In04Buf);
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usb_free_urb(usX2Y(card)->In04urb);
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if (usX2Y(card)->us428ctls_sharedmem)
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snd_free_pages(usX2Y(card)->us428ctls_sharedmem, sizeof(*usX2Y(card)->us428ctls_sharedmem));
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if (usX2Y(card)->chip.index >= 0 && usX2Y(card)->chip.index < SNDRV_CARDS)
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snd_usX2Y_card_used[usX2Y(card)->chip.index] = 0;
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}
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/*
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* Frees the device.
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*/
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static void usX2Y_usb_disconnect(struct usb_device* device, void* ptr)
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{
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if (ptr) {
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usX2Ydev_t* usX2Y = usX2Y((snd_card_t*)ptr);
|
|
struct list_head* p;
|
|
usX2Y->chip.shutdown = 1;
|
|
usX2Y->chip_status = USX2Y_STAT_CHIP_HUP;
|
|
usX2Y_unlinkSeq(&usX2Y->AS04);
|
|
usb_kill_urb(usX2Y->In04urb);
|
|
snd_card_disconnect((snd_card_t*)ptr);
|
|
/* release the midi resources */
|
|
list_for_each(p, &usX2Y->chip.midi_list) {
|
|
snd_usbmidi_disconnect(p, &snd_usX2Y_usb_driver);
|
|
}
|
|
if (usX2Y->us428ctls_sharedmem)
|
|
wake_up(&usX2Y->us428ctls_wait_queue_head);
|
|
snd_card_free((snd_card_t*)ptr);
|
|
}
|
|
}
|
|
|
|
static int __init snd_usX2Y_module_init(void)
|
|
{
|
|
return usb_register(&snd_usX2Y_usb_driver);
|
|
}
|
|
|
|
static void __exit snd_usX2Y_module_exit(void)
|
|
{
|
|
usb_deregister(&snd_usX2Y_usb_driver);
|
|
}
|
|
|
|
module_init(snd_usX2Y_module_init)
|
|
module_exit(snd_usX2Y_module_exit)
|