linux 2.6.16.38 w/ vs2.0.3-rc1

[linux-2.6.git] / drivers / usb / media / vicam.c

diff --git a/drivers/media/video/usbvideo/vicam.c b/drivers/usb/media/vicam.c
similarity index 98%
rename from drivers/media/video/usbvideo/vicam.c
rename to drivers/usb/media/vicam.c
index 90d48e8..5df1440 100644 (file)
--- a/drivers/media/video/usbvideo/vicam.c
+++ b/drivers/usb/media/vicam.c
@@ -42,7 +42,6 @@
 #include <linux/vmalloc.h>
 #include <linux/slab.h>
 #include <linux/proc_fs.h>
-#include <linux/mutex.h>
 #include "usbvideo.h"
 
 // #define VICAM_DEBUG
@@ -69,10 +68,10 @@
 #define VICAM_HEADER_SIZE       64
 
 #define clamp( x, l, h )        max_t( __typeof__( x ),         \
-                                      ( l ),                   \
-                                      min_t( __typeof__( x ),  \
-                                             ( h ),            \
-                                             ( x ) ) )
+                                       ( l ),                   \
+                                       min_t( __typeof__( x ),  \
+                                              ( h ),            \
+                                              ( x ) ) )
 
 /* Not sure what all the bytes in these char
  * arrays do, but they're necessary to make
@@ -357,7 +356,7 @@ static unsigned char setup5[] = {
  * Not sure why these are not yet non-statics which I can reference through
  * usbvideo.h the same as it is in 2.4.20.  I bet this will get fixed sometime
  * in the future.
- *
+ * 
 */
 static void *rvmalloc(unsigned long size)
 {
@@ -408,7 +407,7 @@ struct vicam_camera {
        struct usb_device *udev;        // usb device
 
        /* guard against simultaneous accesses to the camera */
-       struct mutex cam_lock;
+       struct semaphore cam_lock;
 
        int is_initialized;
        u8 open_count;
@@ -462,12 +461,12 @@ static int send_control_msg(struct vicam_camera *cam,
                            u16 size)
 {
        int status = -ENODEV;
-       mutex_lock(&cam->cam_lock);
+       down(&cam->cam_lock);
        if (cam->udev) {
                status = __send_control_msg(cam, request, value,
                                            index, cp, size);
        }
-       mutex_unlock(&cam->cam_lock);
+       up(&cam->cam_lock);
        return status;
 }
 static int
@@ -603,12 +602,12 @@ vicam_ioctl(struct inode *inode, struct file *file, unsigned int ioctlnr, unsign
        case VIDIOCSPICT:
                {
                        struct video_picture vp;
-
+                       
                        if (copy_from_user(&vp, user_arg, sizeof(vp))) {
                                retval = -EFAULT;
                                break;
                        }
-
+                       
                        DBG("VIDIOCSPICT depth = %d, pal = %d\n", vp.depth,
                            vp.palette);
 
@@ -655,7 +654,7 @@ vicam_ioctl(struct inode *inode, struct file *file, unsigned int ioctlnr, unsign
                        }
 
                        DBG("VIDIOCSWIN %d x %d\n", vw.width, vw.height);
-
+                       
                        if ( vw.width != 320 || vw.height != 240 )
                                retval = -EFAULT;
 
@@ -764,7 +763,6 @@ vicam_open(struct inode *inode, struct file *file)
        if (!cam) {
                printk(KERN_ERR
                       "vicam video_device improperly initialized");
-               return -EINVAL;
        }
 
        /* the videodev_lock held above us protects us from
@@ -809,12 +807,12 @@ vicam_open(struct inode *inode, struct file *file)
        cam->needsDummyRead = 1;
        cam->open_count++;
 
-       file->private_data = cam;
-
+       file->private_data = cam;       
+       
        return 0;
 }
 
-static int
+static int 
 vicam_close(struct inode *inode, struct file *file)
 {
        struct vicam_camera *cam = file->private_data;
@@ -833,13 +831,13 @@ vicam_close(struct inode *inode, struct file *file)
        rvfree(cam->framebuf, VICAM_MAX_FRAME_SIZE * VICAM_FRAMES);
        kfree(cam->cntrlbuf);
 
-       mutex_lock(&cam->cam_lock);
+       down(&cam->cam_lock);
 
        cam->open_count--;
        open_count = cam->open_count;
        udev = cam->udev;
 
-       mutex_unlock(&cam->cam_lock);
+       up(&cam->cam_lock);
 
        if (!open_count && !udev) {
                kfree(cam);
@@ -962,7 +960,7 @@ read_frame(struct vicam_camera *cam, int framenum)
        request[8] = 0;
        // bytes 9-15 do not seem to affect exposure or image quality
 
-       mutex_lock(&cam->cam_lock);
+       down(&cam->cam_lock);
 
        if (!cam->udev) {
                goto done;
@@ -987,7 +985,7 @@ read_frame(struct vicam_camera *cam, int framenum)
        }
 
  done:
-       mutex_unlock(&cam->cam_lock);
+       up(&cam->cam_lock);
 }
 
 static ssize_t
@@ -1187,7 +1185,7 @@ vicam_create_proc_entry(struct vicam_camera *cam)
 
        if ( !cam->proc_dir )
                return; // FIXME: We should probably return an error here
-
+       
        ent = create_proc_entry("shutter", S_IFREG | S_IRUGO | S_IWUSR,
                                cam->proc_dir);
        if (ent) {
@@ -1282,7 +1280,7 @@ vicam_probe( struct usb_interface *intf, const struct usb_device_id *id)
        const struct usb_host_interface *interface;
        const struct usb_endpoint_descriptor *endpoint;
        struct vicam_camera *cam;
-
+       
        printk(KERN_INFO "ViCam based webcam connected\n");
 
        interface = intf->cur_altsetting;
@@ -1311,7 +1309,7 @@ vicam_probe( struct usb_interface *intf, const struct usb_device_id *id)
 
        cam->shutter_speed = 15;
 
-       mutex_init(&cam->cam_lock);
+       init_MUTEX(&cam->cam_lock);
 
        memcpy(&cam->vdev, &vicam_template,
               sizeof (vicam_template));
@@ -1331,7 +1329,7 @@ vicam_probe( struct usb_interface *intf, const struct usb_device_id *id)
        printk(KERN_INFO "ViCam webcam driver now controlling video device %d\n",cam->vdev.minor);
 
        usb_set_intfdata (intf, cam);
-
+       
        return 0;
 }
 
@@ -1353,7 +1351,7 @@ vicam_disconnect(struct usb_interface *intf)
 
        /* stop the camera from being used */
 
-       mutex_lock(&cam->cam_lock);
+       down(&cam->cam_lock);
 
        /* mark the camera as gone */
 
@@ -1370,7 +1368,7 @@ vicam_disconnect(struct usb_interface *intf)
 
        open_count = cam->open_count;
 
-       mutex_unlock(&cam->cam_lock);
+       up(&cam->cam_lock);
 
        if (!open_count) {
                kfree(cam);