ALSA: snd-usb-us122l: add support for US-144

Adds support for US-144 when attached on USB1.1.
Unlike the US-122L it uses both USB interfaces 0 and 1.

Signed-off-by: Tobias Hansen <Tobias.Hansen@physik.uni-hamburg.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 67 insertions, 8 deletions

diff --git a/sound/usb/usx2y/us122l.c b/sound/usb/usx2y/us122l.c
index fd44946ce4b3..6c7b64a23c13 100644
--- a/sound/usb/usx2y/us122l.c
+++ b/sound/usb/usx2y/us122l.c
@@ -66,6 +66,28 @@ static int us122l_create_usbmidi(struct snd_card *card)
                                              iface, &quirk);
 }
 
+static int us144_create_usbmidi(struct snd_card *card)
+{
+        static struct snd_usb_midi_endpoint_info quirk_data = {
+                .out_ep = 4,
+                .in_ep = 3,
+                .out_cables =   0x001,
+                .in_cables =    0x001
+        };
+        static struct snd_usb_audio_quirk quirk = {
+                .vendor_name =  "US144",
+                .product_name = NAME_ALLCAPS,
+                .ifnum =        0,
+                .type = QUIRK_MIDI_US122L,
+                .data = &quirk_data
+        };
+        struct usb_device *dev = US122L(card)->chip.dev;
+        struct usb_interface *iface = usb_ifnum_to_if(dev, 0);
+
+        return snd_usb_create_midi_interface(&US122L(card)->chip,
+                                             iface, &quirk);
+}
+
 /*
  * Wrapper for usb_control_msg().
  * Allocates a temp buffer to prevent dmaing from/to the stack.
@@ -171,6 +193,11 @@ static int usb_stream_hwdep_open(struct snd_hwdep *hw, struct file *file)
 
         if (!us122l->first)
                 us122l->first = file;
+
+        if (us122l->chip.dev->descriptor.idProduct == USB_ID_US144) {
+                iface = usb_ifnum_to_if(us122l->chip.dev, 0);
+                usb_autopm_get_interface(iface);
+        }
         iface = usb_ifnum_to_if(us122l->chip.dev, 1);
         usb_autopm_get_interface(iface);
         return 0;
@@ -179,8 +206,14 @@ static int usb_stream_hwdep_open(struct snd_hwdep *hw, struct file *file)
 static int usb_stream_hwdep_release(struct snd_hwdep *hw, struct file *file)
 {
         struct us122l   *us122l = hw->private_data;
-        struct usb_interface *iface = usb_ifnum_to_if(us122l->chip.dev, 1);
+        struct usb_interface *iface;
         snd_printdd(KERN_DEBUG "%p %p\n", hw, file);
+
+        if (us122l->chip.dev->descriptor.idProduct == USB_ID_US144) {
+                iface = usb_ifnum_to_if(us122l->chip.dev, 0);
+                usb_autopm_put_interface(iface);
+        }
+        iface = usb_ifnum_to_if(us122l->chip.dev, 1);
         usb_autopm_put_interface(iface);
         if (us122l->first == file)
                 us122l->first = NULL;
@@ -443,6 +476,13 @@ static bool us122l_create_card(struct snd_card *card)
         int err;
         struct us122l *us122l = US122L(card);
 
+        if (us122l->chip.dev->descriptor.idProduct == USB_ID_US144) {
+                err = usb_set_interface(us122l->chip.dev, 0, 1);
+                if (err) {
+                        snd_printk(KERN_ERR "usb_set_interface error \n");
+                        return false;
+                }
+        }
         err = usb_set_interface(us122l->chip.dev, 1, 1);
         if (err) {
                 snd_printk(KERN_ERR "usb_set_interface error \n");
@@ -455,7 +495,10 @@ static bool us122l_create_card(struct snd_card *card)
         if (!us122l_start(us122l, 44100, 256))
                 return false;
 
-        err = us122l_create_usbmidi(card);
+        if (us122l->chip.dev->descriptor.idProduct == USB_ID_US144)
+                err = us144_create_usbmidi(card);
+        else
+                err = us122l_create_usbmidi(card);
         if (err < 0) {
                 snd_printk(KERN_ERR "us122l_create_usbmidi error %i \n", err);
                 us122l_stop(us122l);
@@ -542,6 +585,7 @@ static int us122l_usb_probe(struct usb_interface *intf,
                 return err;
         }
 
+        usb_get_intf(usb_ifnum_to_if(device, 0));
         usb_get_dev(device);
         *cardp = card;
         return 0;
@@ -550,9 +594,16 @@ static int us122l_usb_probe(struct usb_interface *intf,
 static int snd_us122l_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 (device->descriptor.idProduct == USB_ID_US144
+                && device->speed == USB_SPEED_HIGH) {
+                snd_printk(KERN_ERR "disable ehci-hcd to run US-144 \n");
+                return -ENOENT;
+        }
+
         snd_printdd(KERN_DEBUG"%p:%i\n",
                     intf, intf->cur_altsetting->desc.bInterfaceNumber);
         if (intf->cur_altsetting->desc.bInterfaceNumber != 1)
@@ -591,7 +642,8 @@ static void snd_us122l_disconnect(struct usb_interface *intf)
                 snd_usbmidi_disconnect(p);
         }
 
-        usb_put_intf(intf);
+        usb_put_intf(usb_ifnum_to_if(us122l->chip.dev, 0));
+        usb_put_intf(usb_ifnum_to_if(us122l->chip.dev, 1));
         usb_put_dev(us122l->chip.dev);
 
         while (atomic_read(&us122l->mmap_count))
@@ -642,6 +694,13 @@ static int snd_us122l_resume(struct usb_interface *intf)
 
         mutex_lock(&us122l->mutex);
         /* needed, doesn't restart without: */
+        if (us122l->chip.dev->descriptor.idProduct == USB_ID_US144) {
+                err = usb_set_interface(us122l->chip.dev, 0, 1);
+                if (err) {
+                        snd_printk(KERN_ERR "usb_set_interface error \n");
+                        goto unlock;
+                }
+        }
         err = usb_set_interface(us122l->chip.dev, 1, 1);
         if (err) {
                 snd_printk(KERN_ERR "usb_set_interface error \n");
@@ -675,11 +734,11 @@ static struct usb_device_id snd_us122l_usb_id_table[] = {
                 .idVendor =     0x0644,
                 .idProduct =    USB_ID_US122L
         },
-/*      { */            /* US-144 maybe works when @USB1.1. Untested. */
-/*              .match_flags =  USB_DEVICE_ID_MATCH_DEVICE, */
-/*              .idVendor =     0x0644, */
-/*              .idProduct =    USB_ID_US144 */
-/*      }, */
+        {       /* US-144 only works at USB1.1! Disable module ehci-hcd. */
+                .match_flags =  USB_DEVICE_ID_MATCH_DEVICE,
+                .idVendor =     0x0644,
+                .idProduct =    USB_ID_US144
+        },
         { /* terminator */ }
 };