X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=sound%2Fusb%2Fusx2y%2FusX2Yhwdep.c;h=4af8740db7170ea34734037d6544d49ffd8e8953;hb=158c1529fe8d0094d0051169fd2b1a23e6305223;hp=b76b3dd9df25d48d878548238f040018c443b075;hpb=1c1afa3c053d4ccdf44e5a4e159005cdfd48bfc6;p=karo-tx-linux.git

diff --git a/sound/usb/usx2y/usX2Yhwdep.c b/sound/usb/usx2y/usX2Yhwdep.c
index b76b3dd9df25..4af8740db717 100644
--- a/sound/usb/usx2y/usX2Yhwdep.c
+++ b/sound/usb/usx2y/usX2Yhwdep.c
@@ -20,7 +20,6 @@
  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  */
 
-#include <sound/driver.h>
 #include <linux/interrupt.h>
 #include <linux/usb.h>
 #include <sound/core.h>
@@ -31,37 +30,31 @@
 #include "usbusx2y.h"
 #include "usX2Yhwdep.h"
 
-int usX2Y_hwdep_pcm_new(struct snd_card *card);
-
-
-static struct page * snd_us428ctls_vm_nopage(struct vm_area_struct *area, unsigned long address, int *type)
+static int snd_us428ctls_vm_fault(struct vm_area_struct *area,
+				  struct vm_fault *vmf)
 {
 	unsigned long offset;
 	struct page * page;
 	void *vaddr;
 
-	snd_printdd("ENTER, start %lXh, ofs %lXh, pgoff %ld, addr %lXh\n",
+	snd_printdd("ENTER, start %lXh, pgoff %ld\n",
 		   area->vm_start,
-		   address - area->vm_start,
-		   (address - area->vm_start) >> PAGE_SHIFT,
-		   address);
+		   vmf->pgoff);
 	
-	offset = area->vm_pgoff << PAGE_SHIFT;
-	offset += address - area->vm_start;
-	snd_assert((offset % PAGE_SIZE) == 0, return NOPAGE_SIGBUS);
+	offset = vmf->pgoff << PAGE_SHIFT;
 	vaddr = (char*)((struct usX2Ydev *)area->vm_private_data)->us428ctls_sharedmem + offset;
 	page = virt_to_page(vaddr);
 	get_page(page);
-	snd_printdd( "vaddr=%p made us428ctls_vm_nopage() return %p; offset=%lX\n", vaddr, page, offset);
+	vmf->page = page;
 
-	if (type)
-		*type = VM_FAULT_MINOR;
+	snd_printdd("vaddr=%p made us428ctls_vm_fault() page %p\n",
+		    vaddr, page);
 
-	return page;
+	return 0;
 }
 
 static struct vm_operations_struct us428ctls_vm_ops = {
-	.nopage = snd_us428ctls_vm_nopage,
+	.fault = snd_us428ctls_vm_fault,
 };
 
 static int snd_us428ctls_mmap(struct snd_hwdep * hw, struct file *filp, struct vm_area_struct *area)
@@ -88,7 +81,7 @@ static int snd_us428ctls_mmap(struct snd_hwdep * hw, struct file *filp, struct v
 		us428->us428ctls_sharedmem->CtlSnapShotLast = -2;
 	}
 	area->vm_ops = &us428ctls_vm_ops;
-	area->vm_flags |= VM_RESERVED;
+	area->vm_flags |= VM_RESERVED | VM_DONTEXPAND;
 	area->vm_private_data = hw->private_data;
 	return 0;
 }
@@ -110,16 +103,6 @@ static unsigned int snd_us428ctls_poll(struct snd_hwdep *hw, struct file *file,
 }
 
 
-static int snd_usX2Y_hwdep_open(struct snd_hwdep *hw, struct file *file)
-{
-	return 0;
-}
-
-static int snd_usX2Y_hwdep_release(struct snd_hwdep *hw, struct file *file)
-{
-	return 0;
-}
-
 static int snd_usX2Y_hwdep_dsp_status(struct snd_hwdep *hw,
 				      struct snd_hwdep_dsp_status *info)
 {
@@ -271,8 +254,6 @@ int usX2Y_hwdep_new(struct snd_card *card, struct usb_device* device)
 
 	hw->iface = SNDRV_HWDEP_IFACE_USX2Y;
 	hw->private_data = usX2Y(card);
-	hw->ops.open = snd_usX2Y_hwdep_open;
-	hw->ops.release = snd_usX2Y_hwdep_release;
 	hw->ops.dsp_status = snd_usX2Y_hwdep_dsp_status;
 	hw->ops.dsp_load = snd_usX2Y_hwdep_dsp_load;
 	hw->ops.mmap = snd_us428ctls_mmap;