--- /dev/null
+From 0d3e92b4d3e2160873b610aabd46bbc4853ff82e Mon Sep 17 00:00:00 2001
+From: John Crispin <blogic@openwrt.org>
+Date: Thu, 19 Sep 2013 01:50:59 +0200
+Subject: [PATCH 57/57] uvc: add iPassion iP2970 support
+
+Signed-off-by: John Crispin <blogic@openwrt.org>
+---
+ drivers/media/usb/uvc/uvc_driver.c | 14 ++++
+ drivers/media/usb/uvc/uvc_status.c | 2 +
+ drivers/media/usb/uvc/uvc_video.c | 147 ++++++++++++++++++++++++++++++++++++
+ drivers/media/usb/uvc/uvcvideo.h | 3 +
+ 4 files changed, 166 insertions(+)
+
+diff --git a/drivers/media/usb/uvc/uvc_driver.c b/drivers/media/usb/uvc/uvc_driver.c
+index c3bb250..c6612d4 100644
+--- a/drivers/media/usb/uvc/uvc_driver.c
++++ b/drivers/media/usb/uvc/uvc_driver.c
+@@ -2467,6 +2467,20 @@ static struct usb_device_id uvc_ids[] = {
+ .bInterfaceProtocol = 0,
+ .driver_info = UVC_QUIRK_PROBE_MINMAX
+ | UVC_QUIRK_IGNORE_SELECTOR_UNIT },
++
++/* iPassion iP2970 */
++ { .match_flags = USB_DEVICE_ID_MATCH_DEVICE
++ | USB_DEVICE_ID_MATCH_INT_INFO,
++ .idVendor = 0x1B3B,
++ .idProduct = 0x2970,
++ .bInterfaceClass = USB_CLASS_VIDEO,
++ .bInterfaceSubClass = 1,
++ .bInterfaceProtocol = 0,
++ .driver_info = UVC_QUIRK_PROBE_MINMAX
++ | UVC_QUIRK_STREAM_NO_FID
++ | UVC_QUIRK_MOTION
++ | UVC_QUIRK_SINGLE_ISO },
++
+ /* Generic USB Video Class */
+ { USB_INTERFACE_INFO(USB_CLASS_VIDEO, 1, 0) },
+ {}
+diff --git a/drivers/media/usb/uvc/uvc_status.c b/drivers/media/usb/uvc/uvc_status.c
+index f552ab9..7132ad4 100644
+--- a/drivers/media/usb/uvc/uvc_status.c
++++ b/drivers/media/usb/uvc/uvc_status.c
+@@ -139,6 +139,7 @@ static void uvc_status_complete(struct urb *urb)
+ switch (dev->status[0] & 0x0f) {
+ case UVC_STATUS_TYPE_CONTROL:
+ uvc_event_control(dev, dev->status, len);
++ dev->motion = 1;
+ break;
+
+ case UVC_STATUS_TYPE_STREAMING:
+@@ -182,6 +183,7 @@ int uvc_status_init(struct uvc_device *dev)
+ }
+
+ pipe = usb_rcvintpipe(dev->udev, ep->desc.bEndpointAddress);
++ dev->motion = 0;
+
+ /* For high-speed interrupt endpoints, the bInterval value is used as
+ * an exponent of two. Some developers forgot about it.
+diff --git a/drivers/media/usb/uvc/uvc_video.c b/drivers/media/usb/uvc/uvc_video.c
+index 898c208..2e06163 100644
+--- a/drivers/media/usb/uvc/uvc_video.c
++++ b/drivers/media/usb/uvc/uvc_video.c
+@@ -21,6 +21,11 @@
+ #include <linux/wait.h>
+ #include <linux/atomic.h>
+ #include <asm/unaligned.h>
++#include <linux/skbuff.h>
++#include <linux/kobject.h>
++#include <linux/netlink.h>
++#include <linux/kobject.h>
++#include <linux/workqueue.h>
+
+ #include <media/v4l2-common.h>
+
+@@ -1075,9 +1080,149 @@ static void uvc_video_decode_data(struct uvc_streaming *stream,
+ }
+ }
+
++struct bh_priv {
++ unsigned long seen;
++};
++
++struct bh_event {
++ const char *name;
++ struct sk_buff *skb;
++ struct work_struct work;
++};
++
++#define BH_ERR(fmt, args...) printk(KERN_ERR "%s: " fmt, "webcam", ##args )
++#define BH_DBG(fmt, args...) do {} while (0)
++#define BH_SKB_SIZE 2048
++
++extern u64 uevent_next_seqnum(void);
++static int seen = 0;
++
++static int bh_event_add_var(struct bh_event *event, int argv,
++ const char *format, ...)
++{
++ static char buf[128];
++ char *s;
++ va_list args;
++ int len;
++
++ if (argv)
++ return 0;
++
++ va_start(args, format);
++ len = vsnprintf(buf, sizeof(buf), format, args);
++ va_end(args);
++
++ if (len >= sizeof(buf)) {
++ BH_ERR("buffer size too small\n");
++ WARN_ON(1);
++ return -ENOMEM;
++ }
++
++ s = skb_put(event->skb, len + 1);
++ strcpy(s, buf);
++
++ BH_DBG("added variable '%s'\n", s);
++
++ return 0;
++}
++
++static int motion_hotplug_fill_event(struct bh_event *event)
++{
++ int s = jiffies;
++ int ret;
++
++ if (!seen)
++ seen = jiffies;
++
++ ret = bh_event_add_var(event, 0, "HOME=%s", "/");
++ if (ret)
++ return ret;
++
++ ret = bh_event_add_var(event, 0, "PATH=%s",
++ "/sbin:/bin:/usr/sbin:/usr/bin");
++ if (ret)
++ return ret;
++
++ ret = bh_event_add_var(event, 0, "SUBSYSTEM=usb");
++ if (ret)
++ return ret;
++
++ ret = bh_event_add_var(event, 0, "ACTION=motion");
++ if (ret)
++ return ret;
++
++ ret = bh_event_add_var(event, 0, "SEEN=%d", s - seen);
++ if (ret)
++ return ret;
++ seen = s;
++
++ ret = bh_event_add_var(event, 0, "SEQNUM=%llu", uevent_next_seqnum());
++
++ return ret;
++}
++
++static void motion_hotplug_work(struct work_struct *work)
++{
++ struct bh_event *event = container_of(work, struct bh_event, work);
++ int ret = 0;
++
++ event->skb = alloc_skb(BH_SKB_SIZE, GFP_KERNEL);
++ if (!event->skb)
++ goto out_free_event;
++
++ ret = bh_event_add_var(event, 0, "%s@", "add");
++ if (ret)
++ goto out_free_skb;
++
++ ret = motion_hotplug_fill_event(event);
++ if (ret)
++ goto out_free_skb;
++
++ NETLINK_CB(event->skb).dst_group = 1;
++ broadcast_uevent(event->skb, 0, 1, GFP_KERNEL);
++
++out_free_skb:
++ if (ret) {
++ BH_ERR("work error %d\n", ret);
++ kfree_skb(event->skb);
++ }
++out_free_event:
++ kfree(event);
++}
++
++static int motion_hotplug_create_event(void)
++{
++ struct bh_event *event;
++
++ event = kzalloc(sizeof(*event), GFP_KERNEL);
++ if (!event)
++ return -ENOMEM;
++
++ event->name = "motion";
++
++ INIT_WORK(&event->work, (void *)(void *)motion_hotplug_work);
++ schedule_work(&event->work);
++
++ return 0;
++}
++
++#define MOTION_FLAG_OFFSET 4
+ static void uvc_video_decode_end(struct uvc_streaming *stream,
+ struct uvc_buffer *buf, const __u8 *data, int len)
+ {
++ if ((stream->dev->quirks & UVC_QUIRK_MOTION) &&
++ (data[len - 2] == 0xff) && (data[len - 1] == 0xd9)) {
++ u8 *mem;
++ buf->state = UVC_BUF_STATE_READY;
++ mem = (u8 *) (buf->mem + MOTION_FLAG_OFFSET);
++ if ( stream->dev->motion ) {
++ stream->dev->motion = 0;
++ motion_hotplug_create_event();
++ } else {
++ *mem &= 0x7f;
++ }
++ }
++
+ /* Mark the buffer as done if the EOF marker is set. */
+ if (data[1] & UVC_STREAM_EOF && buf->bytesused != 0) {
+ uvc_trace(UVC_TRACE_FRAME, "Frame complete (EOF found).\n");
+@@ -1478,6 +1623,8 @@ static int uvc_init_video_isoc(struct uvc_streaming *stream,
+ if (npackets == 0)
+ return -ENOMEM;
+
++ if (stream->dev->quirks & UVC_QUIRK_SINGLE_ISO)
++ npackets = 1;
+ size = npackets * psize;
+
+ for (i = 0; i < UVC_URBS; ++i) {
+diff --git a/drivers/media/usb/uvc/uvcvideo.h b/drivers/media/usb/uvc/uvcvideo.h
+index 9e35982..3cacdfd 100644
+--- a/drivers/media/usb/uvc/uvcvideo.h
++++ b/drivers/media/usb/uvc/uvcvideo.h
+@@ -137,6 +137,8 @@
+ #define UVC_QUIRK_FIX_BANDWIDTH 0x00000080
+ #define UVC_QUIRK_PROBE_DEF 0x00000100
+ #define UVC_QUIRK_RESTRICT_FRAME_RATE 0x00000200
++#define UVC_QUIRK_MOTION 0x00000400
++#define UVC_QUIRK_SINGLE_ISO 0x00000800
+
+ /* Format flags */
+ #define UVC_FMT_FLAG_COMPRESSED 0x00000001
+@@ -539,6 +541,7 @@ struct uvc_device {
+ __u8 *status;
+ struct input_dev *input;
+ char input_phys[64];
++ int motion;
+ };
+
+ enum uvc_handle_state {
+--
+1.7.10.4
+
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