Merge master.kernel.org:/pub/scm/linux/kernel/git/sfrench/cifs-2.6
[pandora-kernel.git] / drivers / media / video / usbvision / usbvision-video.c
index af33653..ae5f425 100644 (file)
@@ -230,7 +230,7 @@ static ssize_t show_hue(struct class_device *cd, char *buf)
        ctrl.value = 0;
        if(usbvision->user)
                call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
-       return sprintf(buf, "%d\n", ctrl.value >> 8);
+       return sprintf(buf, "%d\n", ctrl.value);
 }
 static CLASS_DEVICE_ATTR(hue, S_IRUGO, show_hue, NULL);
 
@@ -243,7 +243,7 @@ static ssize_t show_contrast(struct class_device *cd, char *buf)
        ctrl.value = 0;
        if(usbvision->user)
                call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
-       return sprintf(buf, "%d\n", ctrl.value >> 8);
+       return sprintf(buf, "%d\n", ctrl.value);
 }
 static CLASS_DEVICE_ATTR(contrast, S_IRUGO, show_contrast, NULL);
 
@@ -256,7 +256,7 @@ static ssize_t show_brightness(struct class_device *cd, char *buf)
        ctrl.value = 0;
        if(usbvision->user)
                call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
-       return sprintf(buf, "%d\n", ctrl.value >> 8);
+       return sprintf(buf, "%d\n", ctrl.value);
 }
 static CLASS_DEVICE_ATTR(brightness, S_IRUGO, show_brightness, NULL);
 
@@ -269,7 +269,7 @@ static ssize_t show_saturation(struct class_device *cd, char *buf)
        ctrl.value = 0;
        if(usbvision->user)
                call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
-       return sprintf(buf, "%d\n", ctrl.value >> 8);
+       return sprintf(buf, "%d\n", ctrl.value);
 }
 static CLASS_DEVICE_ATTR(saturation, S_IRUGO, show_saturation, NULL);
 
@@ -391,19 +391,14 @@ static int usbvision_v4l2_open(struct inode *inode, struct file *file)
        if (usbvision->user)
                errCode = -EBUSY;
        else {
-               /* Allocate memory for the frame buffers */
-               errCode = usbvision_frames_alloc(usbvision);
-               if(!errCode) {
-                       /* Allocate memory for the scratch ring buffer */
-                       errCode = usbvision_scratch_alloc(usbvision);
-                       if ((!errCode) && (isocMode==ISOC_MODE_COMPRESS)) {
-                               /* Allocate intermediate decompression buffers only if needed */
-                               errCode = usbvision_decompress_alloc(usbvision);
-                       }
+               /* Allocate memory for the scratch ring buffer */
+               errCode = usbvision_scratch_alloc(usbvision);
+               if (isocMode==ISOC_MODE_COMPRESS) {
+                       /* Allocate intermediate decompression buffers only if needed */
+                       errCode = usbvision_decompress_alloc(usbvision);
                }
                if (errCode) {
                        /* Deallocate all buffers if trouble */
-                       usbvision_frames_free(usbvision);
                        usbvision_scratch_free(usbvision);
                        usbvision_decompress_free(usbvision);
                }
@@ -476,6 +471,7 @@ static int usbvision_v4l2_close(struct inode *inode, struct file *file)
 
        usbvision_decompress_free(usbvision);
        usbvision_frames_free(usbvision);
+       usbvision_empty_framequeues(usbvision);
        usbvision_scratch_free(usbvision);
 
        usbvision->user--;
@@ -489,7 +485,7 @@ static int usbvision_v4l2_close(struct inode *inode, struct file *file)
        up(&usbvision->lock);
 
        if (usbvision->remove_pending) {
-               info("%s: Final disconnect", __FUNCTION__);
+               printk(KERN_INFO "%s: Final disconnect\n", __FUNCTION__);
                usbvision_release(usbvision);
        }
 
@@ -519,27 +515,8 @@ static int usbvision_v4l2_do_ioctl(struct inode *inode, struct file *file,
 
 #ifdef CONFIG_VIDEO_ADV_DEBUG
                /* ioctls to allow direct acces to the NT100x registers */
-               case VIDIOC_INT_G_REGISTER:
-               {
-                       struct v4l2_register *reg = arg;
-                       int errCode;
-
-                       if (reg->i2c_id != 0)
-                               return -EINVAL;
-                       /* NT100x has a 8-bit register space */
-                       errCode = usbvision_read_reg(usbvision, reg->reg&0xff);
-                       if (errCode < 0) {
-                               err("%s: VIDIOC_INT_G_REGISTER failed: error %d", __FUNCTION__, errCode);
-                       }
-                       else {
-                               reg->val=(unsigned char)errCode;
-                               PDEBUG(DBG_IOCTL, "VIDIOC_INT_G_REGISTER reg=0x%02X, value=0x%02X",
-                                                       (unsigned int)reg->reg, reg->val);
-                               errCode = 0; // No error
-                       }
-                       return errCode;
-               }
-               case VIDIOC_INT_S_REGISTER:
+               case VIDIOC_DBG_G_REGISTER:
+               case VIDIOC_DBG_S_REGISTER:
                {
                        struct v4l2_register *reg = arg;
                        int errCode;
@@ -548,15 +525,22 @@ static int usbvision_v4l2_do_ioctl(struct inode *inode, struct file *file,
                                return -EINVAL;
                        if (!capable(CAP_SYS_ADMIN))
                                return -EPERM;
-                       errCode = usbvision_write_reg(usbvision, reg->reg&0xff, reg->val);
+                       /* NT100x has a 8-bit register space */
+                       if (cmd == VIDIOC_DBG_G_REGISTER)
+                               errCode = usbvision_read_reg(usbvision, reg->reg&0xff);
+                       else
+                               errCode = usbvision_write_reg(usbvision, reg->reg&0xff, reg->val);
                        if (errCode < 0) {
-                               err("%s: VIDIOC_INT_S_REGISTER failed: error %d", __FUNCTION__, errCode);
-                       }
-                       else {
-                               PDEBUG(DBG_IOCTL, "VIDIOC_INT_S_REGISTER reg=0x%02X, value=0x%02X",
-                                                       (unsigned int)reg->reg, reg->val);
-                               errCode = 0;
+                               err("%s: VIDIOC_DBG_%c_REGISTER failed: error %d", __FUNCTION__,
+                                   cmd == VIDIOC_DBG_G_REGISTER ? 'G' : 'S', errCode);
+                               return errCode;
                        }
+                       if (cmd == VIDIOC_DBG_S_REGISTER)
+                               reg->val = (u8)errCode;
+
+                       PDEBUG(DBG_IOCTL, "VIDIOC_DBG_%c_REGISTER reg=0x%02X, value=0x%02X",
+                              cmd == VIDIOC_DBG_G_REGISTER ? 'G' : 'S',
+                              (unsigned int)reg->reg, reg->val);
                        return 0;
                }
 #endif
@@ -792,8 +776,8 @@ static int usbvision_v4l2_do_ioctl(struct inode *inode, struct file *file,
                case VIDIOC_G_CTRL:
                {
                        struct v4l2_control *ctrl = arg;
-                       PDEBUG(DBG_IOCTL,"VIDIOC_G_CTRL id=%x value=%x",ctrl->id,ctrl->value);
                        call_i2c_clients(usbvision, VIDIOC_G_CTRL, ctrl);
+                       PDEBUG(DBG_IOCTL,"VIDIOC_G_CTRL id=%x value=%x",ctrl->id,ctrl->value);
                        return 0;
                }
                case VIDIOC_S_CTRL:
@@ -821,7 +805,9 @@ static int usbvision_v4l2_do_ioctl(struct inode *inode, struct file *file,
                                    return ret;
                        }
 
+                       usbvision_frames_free(usbvision);
                        usbvision_empty_framequeues(usbvision);
+                       vr->count = usbvision_frames_alloc(usbvision,vr->count);
 
                        usbvision->curFrame = NULL;
 
@@ -838,7 +824,7 @@ static int usbvision_v4l2_do_ioctl(struct inode *inode, struct file *file,
                        if(vb->type != V4L2_CAP_VIDEO_CAPTURE) {
                                return -EINVAL;
                        }
-                       if(vb->index>=USBVISION_NUMFRAMES)  {
+                       if(vb->index>=usbvision->num_frames)  {
                                return -EINVAL;
                        }
                        // Updating the corresponding frame state
@@ -852,7 +838,7 @@ static int usbvision_v4l2_do_ioctl(struct inode *inode, struct file *file,
                                vb->flags |= V4L2_BUF_FLAG_MAPPED;
                        vb->memory = V4L2_MEMORY_MMAP;
 
-                       vb->m.offset = vb->index*usbvision->max_frame_size;
+                       vb->m.offset = vb->index*PAGE_ALIGN(usbvision->max_frame_size);
 
                        vb->memory = V4L2_MEMORY_MMAP;
                        vb->field = V4L2_FIELD_NONE;
@@ -871,7 +857,7 @@ static int usbvision_v4l2_do_ioctl(struct inode *inode, struct file *file,
                        if(vb->type != V4L2_CAP_VIDEO_CAPTURE) {
                                return -EINVAL;
                        }
-                       if(vb->index>=USBVISION_NUMFRAMES)  {
+                       if(vb->index>=usbvision->num_frames)  {
                                return -EINVAL;
                        }
 
@@ -1041,6 +1027,7 @@ static int usbvision_v4l2_do_ioctl(struct inode *inode, struct file *file,
                                                if ((ret = usbvision_stream_interrupt(usbvision)))
                                                        return ret;
                                        }
+                                       usbvision_frames_free(usbvision);
                                        usbvision_empty_framequeues(usbvision);
 
                                        usbvision->curFrame = NULL;
@@ -1087,12 +1074,24 @@ static ssize_t usbvision_v4l2_read(struct file *file, char __user *buf,
        if (!USBVISION_IS_OPERATIONAL(usbvision) || (buf == NULL))
                return -EFAULT;
 
-       /* no stream is running, make it running ! */
-       usbvision->streaming = Stream_On;
-       call_i2c_clients(usbvision,VIDIOC_STREAMON , NULL);
+       /* This entry point is compatible with the mmap routines so that a user can do either
+          VIDIOC_QBUF/VIDIOC_DQBUF to get frames or call read on the device. */
+       if(!usbvision->num_frames) {
+               /* First, allocate some frames to work with if this has not been done with
+                VIDIOC_REQBUF */
+               usbvision_frames_free(usbvision);
+               usbvision_empty_framequeues(usbvision);
+               usbvision_frames_alloc(usbvision,USBVISION_NUMFRAMES);
+       }
+
+       if(usbvision->streaming != Stream_On) {
+               /* no stream is running, make it running ! */
+               usbvision->streaming = Stream_On;
+               call_i2c_clients(usbvision,VIDIOC_STREAMON , NULL);
+       }
 
-       /* First, enqueue as many frames as possible (like a user of VIDIOC_QBUF would do) */
-       for(i=0;i<USBVISION_NUMFRAMES;i++) {
+       /* Then, enqueue as many frames as possible (like a user of VIDIOC_QBUF would do) */
+       for(i=0;i<usbvision->num_frames;i++) {
                frame = &usbvision->frame[i];
                if(frame->grabstate == FrameState_Unused) {
                        /* Mark it as ready and enqueue frame */
@@ -1169,6 +1168,8 @@ static int usbvision_v4l2_mmap(struct file *file, struct vm_area_struct *vma)
        struct video_device *dev = video_devdata(file);
        struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
 
+       PDEBUG(DBG_MMAP, "mmap");
+
        down(&usbvision->lock);
 
        if (!USBVISION_IS_OPERATIONAL(usbvision)) {
@@ -1177,16 +1178,16 @@ static int usbvision_v4l2_mmap(struct file *file, struct vm_area_struct *vma)
        }
 
        if (!(vma->vm_flags & VM_WRITE) ||
-           size != PAGE_ALIGN(usbvision->curwidth*usbvision->curheight*usbvision->palette.bytes_per_pixel)) {
+           size != PAGE_ALIGN(usbvision->max_frame_size)) {
                up(&usbvision->lock);
                return -EINVAL;
        }
 
-       for (i = 0; i < USBVISION_NUMFRAMES; i++) {
-               if (((usbvision->max_frame_size*i) >> PAGE_SHIFT) == vma->vm_pgoff)
+       for (i = 0; i < usbvision->num_frames; i++) {
+               if (((PAGE_ALIGN(usbvision->max_frame_size)*i) >> PAGE_SHIFT) == vma->vm_pgoff)
                        break;
        }
-       if (i == USBVISION_NUMFRAMES) {
+       if (i == usbvision->num_frames) {
                PDEBUG(DBG_MMAP, "mmap: user supplied mapping address is out of range");
                up(&usbvision->lock);
                return -EINVAL;
@@ -1242,6 +1243,13 @@ static int usbvision_radio_open(struct inode *inode, struct file *file)
                        }
                }
 
+               /* Alternate interface 1 is is the biggest frame size */
+               errCode = usbvision_set_alternate(usbvision);
+               if (errCode < 0) {
+                       usbvision->last_error = errCode;
+                       return -EBUSY;
+               }
+
                // If so far no errors then we shall start the radio
                usbvision->radio = 1;
                call_i2c_clients(usbvision,AUDC_SET_RADIO,&usbvision->tuner_type);
@@ -1273,6 +1281,11 @@ static int usbvision_radio_close(struct inode *inode, struct file *file)
 
        down(&usbvision->lock);
 
+       /* Set packet size to 0 */
+       usbvision->ifaceAlt=0;
+       errCode = usb_set_interface(usbvision->dev, usbvision->iface,
+                                   usbvision->ifaceAlt);
+
        usbvision_audio_off(usbvision);
        usbvision->radio=0;
        usbvision->user--;
@@ -1285,7 +1298,7 @@ static int usbvision_radio_close(struct inode *inode, struct file *file)
        up(&usbvision->lock);
 
        if (usbvision->remove_pending) {
-               info("%s: Final disconnect", __FUNCTION__);
+               printk(KERN_INFO "%s: Final disconnect\n", __FUNCTION__);
                usbvision_release(usbvision);
        }
 
@@ -1611,7 +1624,7 @@ static int __devinit usbvision_register_video(struct usb_usbvision *usbvision)
        if (video_register_device(usbvision->vdev, VFL_TYPE_GRABBER, video_nr)<0) {
                goto err_exit;
        }
-       info("USBVision[%d]: registered USBVision Video device /dev/video%d [v4l2]", usbvision->nr,usbvision->vdev->minor & 0x1f);
+       printk(KERN_INFO "USBVision[%d]: registered USBVision Video device /dev/video%d [v4l2]\n", usbvision->nr,usbvision->vdev->minor & 0x1f);
 
        // Radio Device:
        if (usbvision_device_data[usbvision->DevModel].Radio) {
@@ -1623,7 +1636,7 @@ static int __devinit usbvision_register_video(struct usb_usbvision *usbvision)
                if (video_register_device(usbvision->rdev, VFL_TYPE_RADIO, radio_nr)<0) {
                        goto err_exit;
                }
-               info("USBVision[%d]: registered USBVision Radio device /dev/radio%d [v4l2]", usbvision->nr, usbvision->rdev->minor & 0x1f);
+               printk(KERN_INFO "USBVision[%d]: registered USBVision Radio device /dev/radio%d [v4l2]\n", usbvision->nr, usbvision->rdev->minor & 0x1f);
        }
        // vbi Device:
        if (usbvision_device_data[usbvision->DevModel].vbi) {
@@ -1634,7 +1647,7 @@ static int __devinit usbvision_register_video(struct usb_usbvision *usbvision)
                if (video_register_device(usbvision->vbi, VFL_TYPE_VBI, vbi_nr)<0) {
                        goto err_exit;
                }
-               info("USBVision[%d]: registered USBVision VBI device /dev/vbi%d [v4l2] (Not Working Yet!)", usbvision->nr,usbvision->vbi->minor & 0x1f);
+               printk(KERN_INFO "USBVision[%d]: registered USBVision VBI device /dev/vbi%d [v4l2] (Not Working Yet!)\n", usbvision->nr,usbvision->vbi->minor & 0x1f);
        }
        // all done
        return 0;
@@ -1764,15 +1777,17 @@ static void usbvision_configure_video(struct usb_usbvision *usbvision)
  */
 static int __devinit usbvision_probe(struct usb_interface *intf, const struct usb_device_id *devid)
 {
-       struct usb_device *dev = interface_to_usbdev(intf);
+       struct usb_device *dev = usb_get_dev(interface_to_usbdev(intf));
+       struct usb_interface *uif;
        __u8 ifnum = intf->altsetting->desc.bInterfaceNumber;
        const struct usb_host_interface *interface;
        struct usb_usbvision *usbvision = NULL;
        const struct usb_endpoint_descriptor *endpoint;
-       int model;
+       int model,i;
 
        PDEBUG(DBG_PROBE, "VID=%#04x, PID=%#04x, ifnum=%u",
                                        dev->descriptor.idVendor, dev->descriptor.idProduct, ifnum);
+
        /* Is it an USBVISION video dev? */
        model = 0;
        for(model = 0; usbvision_device_data[model].idVendor; model++) {
@@ -1783,7 +1798,7 @@ static int __devinit usbvision_probe(struct usb_interface *intf, const struct us
                        continue;
                }
 
-               info("%s: %s found", __FUNCTION__, usbvision_device_data[model].ModelString);
+               printk(KERN_INFO "%s: %s found\n", __FUNCTION__, usbvision_device_data[model].ModelString);
                break;
        }
 
@@ -1799,7 +1814,7 @@ static int __devinit usbvision_probe(struct usb_interface *intf, const struct us
        endpoint = &interface->endpoint[1].desc;
        if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_ISOC) {
                err("%s: interface %d. has non-ISO endpoint!", __FUNCTION__, ifnum);
-               err("%s: Endpoint attribures %d", __FUNCTION__, endpoint->bmAttributes);
+               err("%s: Endpoint attributes %d", __FUNCTION__, endpoint->bmAttributes);
                return -ENODEV;
        }
        if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT) {
@@ -1826,6 +1841,28 @@ static int __devinit usbvision_probe(struct usb_interface *intf, const struct us
 
        down(&usbvision->lock);
 
+       /* compute alternate max packet sizes */
+       uif = dev->actconfig->interface[0];
+
+       usbvision->num_alt=uif->num_altsetting;
+       PDEBUG(DBG_PROBE, "Alternate settings: %i",usbvision->num_alt);
+       usbvision->alt_max_pkt_size = kmalloc(32*
+                                             usbvision->num_alt,GFP_KERNEL);
+       if (usbvision->alt_max_pkt_size == NULL) {
+               err("usbvision: out of memory!\n");
+               return -ENOMEM;
+       }
+
+       for (i = 0; i < usbvision->num_alt ; i++) {
+               u16 tmp = le16_to_cpu(uif->altsetting[i].endpoint[1].desc.
+                                     wMaxPacketSize);
+               usbvision->alt_max_pkt_size[i] =
+                       (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1);
+               PDEBUG(DBG_PROBE, "Alternate setting %i, max size= %i",i,
+                      usbvision->alt_max_pkt_size[i]);
+       }
+
+
        usbvision->nr = usbvision_nr++;
 
        usbvision->have_tuner = usbvision_device_data[model].Tuner;
@@ -1838,8 +1875,7 @@ static int __devinit usbvision_probe(struct usb_interface *intf, const struct us
        usbvision->DevModel = model;
        usbvision->remove_pending = 0;
        usbvision->iface = ifnum;
-       usbvision->ifaceAltInactive = 0;
-       usbvision->ifaceAltActive = 1;
+       usbvision->ifaceAlt = 0;
        usbvision->video_endp = endpoint->bEndpointAddress;
        usbvision->isocPacketSize = 0;
        usbvision->usb_bandwidth = 0;
@@ -1895,7 +1931,7 @@ static void __devexit usbvision_disconnect(struct usb_interface *intf)
        up(&usbvision->lock);
 
        if (usbvision->user) {
-               info("%s: In use, disconnect pending", __FUNCTION__);
+               printk(KERN_INFO "%s: In use, disconnect pending\n", __FUNCTION__);
                wake_up_interruptible(&usbvision->wait_frame);
                wake_up_interruptible(&usbvision->wait_stream);
        }
@@ -2061,7 +2097,7 @@ static int __init usbvision_init(void)
        errCode = usb_register(&usbvision_driver);
 
        if (errCode == 0) {
-               info(DRIVER_DESC " : " USBVISION_VERSION_STRING);
+               printk(KERN_INFO DRIVER_DESC " : " USBVISION_VERSION_STRING "\n");
                PDEBUG(DBG_PROBE, "success");
        }
        return errCode;