1 files changed, 461 insertions, 0 deletions

diff --git a/sound/usb/usx2y/usbusx2y.c b/sound/usb/usx2y/usbusx2y.c
new file mode 100644
index 000000000000..b06a267e5dac
--- /dev/null
+++ b/sound/usb/usx2y/usbusx2y.c
@@ -0,0 +1,461 @@
+/*
+ * usbusy2y.c - ALSA USB US-428 Driver
+ *
+2004-12-14 Karsten Wiese
+        Version 0.8.7.1:
+        snd_pcm_open for rawusb pcm-devices now returns -EBUSY if called without rawusb's hwdep device being open.
+
+2004-12-02 Karsten Wiese
+        Version 0.8.7:
+        Use macro usb_maxpacket() for portability.
+
+2004-10-26 Karsten Wiese
+        Version 0.8.6:
+        wake_up() process waiting in usX2Y_urbs_start() on error.
+
+2004-10-21 Karsten Wiese
+        Version 0.8.5:
+        nrpacks is runtime or compiletime configurable now with tested values from 1 to 4.
+
+2004-10-03 Karsten Wiese
+        Version 0.8.2:
+        Avoid any possible racing while in prepare callback.
+
+2004-09-30 Karsten Wiese
+        Version 0.8.0:
+        Simplified things and made ohci work again.
+
+2004-09-20 Karsten Wiese
+        Version 0.7.3:
+        Use usb_kill_urb() instead of deprecated (kernel 2.6.9) usb_unlink_urb().
+
+2004-07-13 Karsten Wiese
+        Version 0.7.1:
+        Don't sleep in START/STOP callbacks anymore.
+        us428 channels C/D not handled just for this version, sorry.
+
+2004-06-21 Karsten Wiese
+        Version 0.6.4:
+        Temporarely suspend midi input
+        to sanely call usb_set_interface() when setting format.
+
+2004-06-12 Karsten Wiese
+        Version 0.6.3:
+        Made it thus the following rule is enforced:
+        "All pcm substreams of one usX2Y have to operate at the same rate & format."
+
+2004-04-06 Karsten Wiese
+        Version 0.6.0:
+        Runs on 2.6.5 kernel without any "--with-debug=" things.
+        us224 reported running.
+
+2004-01-14 Karsten Wiese
+        Version 0.5.1:
+        Runs with 2.6.1 kernel.
+
+2003-12-30 Karsten Wiese
+        Version 0.4.1:
+        Fix 24Bit 4Channel capturing for the us428.
+
+2003-11-27 Karsten Wiese, Martin Langer
+        Version 0.4:
+        us122 support.
+        us224 could be tested by uncommenting the sections containing USB_ID_US224
+
+2003-11-03 Karsten Wiese
+        Version 0.3:
+        24Bit support. 
+        "arecord -D hw:1 -c 2 -r 48000 -M -f S24_3LE|aplay -D hw:1 -c 2 -r 48000 -M -f S24_3LE" works.
+
+2003-08-22 Karsten Wiese
+        Version 0.0.8:
+        Removed EZUSB Firmware. First Stage Firmwaredownload is now done by tascam-firmware downloader.
+        See:
+        http://usb-midi-fw.sourceforge.net/tascam-firmware.tar.gz
+
+2003-06-18 Karsten Wiese
+        Version 0.0.5:
+        changed to compile with kernel 2.4.21 and alsa 0.9.4
+
+2002-10-16 Karsten Wiese
+        Version 0.0.4:
+        compiles again with alsa-current.
+        USB_ISO_ASAP not used anymore (most of the time), instead
+        urb->start_frame is calculated here now, some calls inside usb-driver don't need to happen anymore.
+
+        To get the best out of this:
+        Disable APM-support in the kernel as APM-BIOS calls (once each second) hard disable interrupt for many precious milliseconds.
+        This helped me much on my slowish PII 400 & PIII 500.
+        ACPI yet untested but might cause the same bad behaviour.
+        Use a kernel with lowlatency and preemptiv patches applied.
+        To autoload snd-usb-midi append a line 
+                post-install snd-usb-us428 modprobe snd-usb-midi
+        to /etc/modules.conf.
+
+        known problems:
+        sliders, knobs, lights not yet handled except MASTER Volume slider.
+        "pcm -c 2" doesn't work. "pcm -c 2 -m direct_interleaved" does.
+        KDE3: "Enable full duplex operation" deadlocks.
+
+        
+2002-08-31 Karsten Wiese
+        Version 0.0.3: audio also simplex;
+        simplifying: iso urbs only 1 packet, melted structs.
+        ASYNC_UNLINK not used anymore: no more crashes so far.....
+        for alsa 0.9 rc3.
+
+2002-08-09 Karsten Wiese
+        Version 0.0.2: midi works with snd-usb-midi, audio (only fullduplex now) with i.e. bristol.
+        The firmware has been sniffed from win2k us-428 driver 3.09.
+
+ *   Copyright (c) 2002 - 2004 Karsten Wiese
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+*/
+
+#include <sound/driver.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/interrupt.h>
+#include <linux/usb.h>
+#include <sound/core.h>
+#include <sound/initval.h>
+#include <sound/pcm.h>
+
+#include <sound/rawmidi.h>
+#include "usx2y.h"
+#include "usbusx2y.h"
+#include "usX2Yhwdep.h"
+
+
+
+MODULE_AUTHOR("Karsten Wiese <annabellesgarden@yahoo.de>");
+MODULE_DESCRIPTION("TASCAM "NAME_ALLCAPS" Version 0.8.7.1");
+MODULE_LICENSE("GPL");
+MODULE_SUPPORTED_DEVICE("{{TASCAM(0x1604), "NAME_ALLCAPS"(0x8001)(0x8005)(0x8007) }}");
+
+static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-max */
+static char* id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* Id for this card */
+static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */
+
+module_param_array(index, int, NULL, 0444);
+MODULE_PARM_DESC(index, "Index value for "NAME_ALLCAPS".");
+module_param_array(id, charp, NULL, 0444);
+MODULE_PARM_DESC(id, "ID string for "NAME_ALLCAPS".");
+module_param_array(enable, bool, NULL, 0444);
+MODULE_PARM_DESC(enable, "Enable "NAME_ALLCAPS".");
+
+
+static int snd_usX2Y_card_used[SNDRV_CARDS];
+
+static void usX2Y_usb_disconnect(struct usb_device* usb_device, void* ptr);
+static void snd_usX2Y_card_private_free(snd_card_t *card);
+
+/* 
+ * pipe 4 is used for switching the lamps, setting samplerate, volumes ....   
+ */
+static void i_usX2Y_Out04Int(struct urb* urb, struct pt_regs *regs)
+{
+#ifdef CONFIG_SND_DEBUG
+        if (urb->status) {
+                int             i;
+                usX2Ydev_t*     usX2Y = urb->context;
+                for (i = 0; i < 10 && usX2Y->AS04.urb[i] != urb; i++);
+                snd_printdd("i_usX2Y_Out04Int() urb %i status=%i\n", i, urb->status);
+        }
+#endif
+}
+
+static void i_usX2Y_In04Int(struct urb* urb, struct pt_regs *regs)
+{
+        int                     err = 0;
+        usX2Ydev_t              *usX2Y = urb->context;
+        us428ctls_sharedmem_t   *us428ctls = usX2Y->us428ctls_sharedmem;
+
+        usX2Y->In04IntCalls++;
+
+        if (urb->status) {
+                snd_printdd("Interrupt Pipe 4 came back with status=%i\n", urb->status);
+                return;
+        }
+
+        //      printk("%i:0x%02X ", 8, (int)((unsigned char*)usX2Y->In04Buf)[8]); Master volume shows 0 here if fader is at max during boot ?!?
+        if (us428ctls) {
+                int diff = -1;
+                if (-2 == us428ctls->CtlSnapShotLast) {
+                        diff = 0;
+                        memcpy(usX2Y->In04Last, usX2Y->In04Buf, sizeof(usX2Y->In04Last));
+                        us428ctls->CtlSnapShotLast = -1;
+                } else {
+                        int i;
+                        for (i = 0; i < 21; i++) {
+                                if (usX2Y->In04Last[i] != ((char*)usX2Y->In04Buf)[i]) {
+                                        if (diff < 0)
+                                                diff = i;
+                                        usX2Y->In04Last[i] = ((char*)usX2Y->In04Buf)[i];
+                                }
+                        }
+                }
+                if (0 <= diff) {
+                        int n = us428ctls->CtlSnapShotLast + 1;
+                        if (n >= N_us428_ctl_BUFS  ||  n < 0)
+                                n = 0;
+                        memcpy(us428ctls->CtlSnapShot + n, usX2Y->In04Buf, sizeof(us428ctls->CtlSnapShot[0]));
+                        us428ctls->CtlSnapShotDiffersAt[n] = diff;
+                        us428ctls->CtlSnapShotLast = n;
+                        wake_up(&usX2Y->us428ctls_wait_queue_head);
+                }
+        }
+        
+        
+        if (usX2Y->US04) {
+                if (0 == usX2Y->US04->submitted)
+                        do
+                                err = usb_submit_urb(usX2Y->US04->urb[usX2Y->US04->submitted++], GFP_ATOMIC);
+                        while (!err && usX2Y->US04->submitted < usX2Y->US04->len);
+        } else
+                if (us428ctls && us428ctls->p4outLast >= 0 && us428ctls->p4outLast < N_us428_p4out_BUFS) {
+                        if (us428ctls->p4outLast != us428ctls->p4outSent) {
+                                int j, send = us428ctls->p4outSent + 1;
+                                if (send >= N_us428_p4out_BUFS)
+                                        send = 0;
+                                for (j = 0; j < URBS_AsyncSeq  &&  !err; ++j)
+                                        if (0 == usX2Y->AS04.urb[j]->status) {
+                                                us428_p4out_t *p4out = us428ctls->p4out + send; // FIXME if more then 1 p4out is new, 1 gets lost.
+                                                usb_fill_bulk_urb(usX2Y->AS04.urb[j], usX2Y->chip.dev,
+                                                                  usb_sndbulkpipe(usX2Y->chip.dev, 0x04), &p4out->val.vol, 
+                                                                  p4out->type == eLT_Light ? sizeof(us428_lights_t) : 5,
+                                                                  i_usX2Y_Out04Int, usX2Y);
+                                                err = usb_submit_urb(usX2Y->AS04.urb[j], GFP_ATOMIC);
+                                                us428ctls->p4outSent = send;
+                                                break;
+                                        }
+                        }
+                }
+
+        if (err) {
+                snd_printk("In04Int() usb_submit_urb err=%i\n", err);
+        }
+
+        urb->dev = usX2Y->chip.dev;
+        usb_submit_urb(urb, GFP_ATOMIC);
+}
+
+/*
+ * Prepare some urbs
+ */
+int usX2Y_AsyncSeq04_init(usX2Ydev_t* usX2Y)
+{
+        int     err = 0,
+                i;
+
+        if (NULL == (usX2Y->AS04.buffer = kmalloc(URB_DataLen_AsyncSeq*URBS_AsyncSeq, GFP_KERNEL))) {
+                err = -ENOMEM;
+        } else
+                for (i = 0; i < URBS_AsyncSeq; ++i) {
+                        if (NULL == (usX2Y->AS04.urb[i] = usb_alloc_urb(0, GFP_KERNEL))) {
+                                err = -ENOMEM;
+                                break;
+                        }
+                        usb_fill_bulk_urb(      usX2Y->AS04.urb[i], usX2Y->chip.dev,
+                                                usb_sndbulkpipe(usX2Y->chip.dev, 0x04),
+                                                usX2Y->AS04.buffer + URB_DataLen_AsyncSeq*i, 0,
+                                                i_usX2Y_Out04Int, usX2Y
+                                );
+                }
+        return err;
+}
+
+int usX2Y_In04_init(usX2Ydev_t* usX2Y)
+{
+        int     err = 0;
+        if (! (usX2Y->In04urb = usb_alloc_urb(0, GFP_KERNEL)))
+                return -ENOMEM;
+
+        if (! (usX2Y->In04Buf = kmalloc(21, GFP_KERNEL))) {
+                usb_free_urb(usX2Y->In04urb);
+                return -ENOMEM;
+        }
+         
+        init_waitqueue_head(&usX2Y->In04WaitQueue);
+        usb_fill_int_urb(usX2Y->In04urb, usX2Y->chip.dev, usb_rcvintpipe(usX2Y->chip.dev, 0x4),
+                         usX2Y->In04Buf, 21,
+                         i_usX2Y_In04Int, usX2Y,
+                         10);
+        err = usb_submit_urb(usX2Y->In04urb, GFP_KERNEL);
+        return err;
+}
+
+static void usX2Y_unlinkSeq(snd_usX2Y_AsyncSeq_t* S)
+{
+        int     i;
+        for (i = 0; i < URBS_AsyncSeq; ++i) {
+                if (S[i].urb) {
+                        usb_kill_urb(S->urb[i]);
+                        usb_free_urb(S->urb[i]);
+                        S->urb[i] = NULL;
+                }
+        }
+        kfree(S->buffer);
+}
+
+
+static struct usb_device_id snd_usX2Y_usb_id_table[] = {
+        {
+                .match_flags =  USB_DEVICE_ID_MATCH_DEVICE,
+                .idVendor =     0x1604,
+                .idProduct =    USB_ID_US428 
+        },
+        {
+                .match_flags =  USB_DEVICE_ID_MATCH_DEVICE,
+                .idVendor =     0x1604,
+                .idProduct =    USB_ID_US122 
+        },
+        {
+                .match_flags =  USB_DEVICE_ID_MATCH_DEVICE,
+                .idVendor =     0x1604,
+                .idProduct =    USB_ID_US224
+        },
+        { /* terminator */ }
+};
+
+static snd_card_t* usX2Y_create_card(struct usb_device* device)
+{
+        int             dev;
+        snd_card_t*     card;
+        for (dev = 0; dev < SNDRV_CARDS; ++dev)
+                if (enable[dev] && !snd_usX2Y_card_used[dev])
+                        break;
+        if (dev >= SNDRV_CARDS)
+                return NULL;
+        card = snd_card_new(index[dev], id[dev], THIS_MODULE, sizeof(usX2Ydev_t));
+        if (!card)
+                return NULL;
+        snd_usX2Y_card_used[usX2Y(card)->chip.index = dev] = 1;
+        card->private_free = snd_usX2Y_card_private_free;
+        usX2Y(card)->chip.dev = device;
+        usX2Y(card)->chip.card = card;
+        init_waitqueue_head(&usX2Y(card)->prepare_wait_queue);
+        init_MUTEX (&usX2Y(card)->prepare_mutex);
+        INIT_LIST_HEAD(&usX2Y(card)->chip.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)->chip.dev->bus->busnum, usX2Y(card)->chip.dev->devnum
+                );
+        snd_card_set_dev(card, &device->dev);
+        return card;
+}
+
+
+static void* usX2Y_usb_probe(struct usb_device* device, struct usb_interface *intf, const struct usb_device_id* device_id)
+{
+        int             err;
+        snd_card_t*     card;
+        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) ||
+            !(card = usX2Y_create_card(device)))
+                return NULL;
+        if ((err = usX2Y_hwdep_new(card, device)) < 0  ||
+            (err = snd_card_register(card)) < 0) {
+                snd_card_free(card);
+                return NULL;
+        }
+        return card;
+}
+
+/*
+ * new 2.5 USB kernel API
+ */
+static int snd_usX2Y_probe(struct usb_interface *intf, const struct usb_device_id *id)
+{
+        void *chip;
+        chip = usX2Y_usb_probe(interface_to_usbdev(intf), intf, id);
+        if (chip) {
+                dev_set_drvdata(&intf->dev, chip);
+                return 0;
+        } else
+                return -EIO;
+}
+
+static void snd_usX2Y_disconnect(struct usb_interface *intf)
+{
+        usX2Y_usb_disconnect(interface_to_usbdev(intf),
+                                 dev_get_drvdata(&intf->dev));
+}
+
+MODULE_DEVICE_TABLE(usb, snd_usX2Y_usb_id_table);
+static struct usb_driver snd_usX2Y_usb_driver = {
+        .owner =        THIS_MODULE,
+        .name =         "snd-usb-usx2y",
+        .probe =        snd_usX2Y_probe,
+        .disconnect =   snd_usX2Y_disconnect,
+        .id_table =     snd_usX2Y_usb_id_table,
+};
+
+static void snd_usX2Y_card_private_free(snd_card_t *card)
+{
+        kfree(usX2Y(card)->In04Buf);
+        usb_free_urb(usX2Y(card)->In04urb);
+        if (usX2Y(card)->us428ctls_sharedmem)
+                snd_free_pages(usX2Y(card)->us428ctls_sharedmem, sizeof(*usX2Y(card)->us428ctls_sharedmem));
+        if (usX2Y(card)->chip.index >= 0  &&  usX2Y(card)->chip.index < SNDRV_CARDS)
+                snd_usX2Y_card_used[usX2Y(card)->chip.index] = 0;
+}
+
+/*
+ * Frees the device.
+ */
+static void usX2Y_usb_disconnect(struct usb_device* device, void* ptr)
+{
+        if (ptr) {
+                usX2Ydev_t* usX2Y = usX2Y((snd_card_t*)ptr);
+                struct list_head* p;
+                if (usX2Y->chip_status == USX2Y_STAT_CHIP_HUP)  // on 2.6.1 kernel snd_usbmidi_disconnect()
+                        return;                                 // calls us back. better leave :-) .
+                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_in_thread((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)