+++ /dev/null
-From 975e76214cd2516eb6cfff4c3eec581872645e88 Mon Sep 17 00:00:00 2001
-From: John Crispin <blogic@openwrt.org>
-Date: Thu, 19 Sep 2013 01:50:59 +0200
-Subject: [PATCH 31/53] uvc: add iPassion iP2970 support
-
-Signed-off-by: John Crispin <blogic@openwrt.org>
----
- drivers/media/usb/uvc/uvc_driver.c | 12 +++
- drivers/media/usb/uvc/uvc_status.c | 2 +
- drivers/media/usb/uvc/uvc_video.c | 147 ++++++++++++++++++++++++++++++++++++
- drivers/media/usb/uvc/uvcvideo.h | 5 +-
- 4 files changed, 165 insertions(+), 1 deletion(-)
-
---- a/drivers/media/usb/uvc/uvc_driver.c
-+++ b/drivers/media/usb/uvc/uvc_driver.c
-@@ -2749,6 +2749,18 @@ static const struct usb_device_id uvc_id
- .bInterfaceSubClass = 1,
- .bInterfaceProtocol = 0,
- .driver_info = UVC_QUIRK_FORCE_Y8 },
-+ /* 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, UVC_PC_PROTOCOL_UNDEFINED) },
- { USB_INTERFACE_INFO(USB_CLASS_VIDEO, 1, UVC_PC_PROTOCOL_15) },
---- 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 u
- 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 *d
- }
-
- 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.
---- 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>
-
-@@ -1101,9 +1106,149 @@ static void uvc_video_decode_data(struct
- }
- }
-
-+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");
-@@ -1518,6 +1663,8 @@ static int uvc_init_video_isoc(struct uv
- 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) {
---- a/drivers/media/usb/uvc/uvcvideo.h
-+++ b/drivers/media/usb/uvc/uvcvideo.h
-@@ -186,7 +186,9 @@
- #define UVC_QUIRK_RESTRICT_FRAME_RATE 0x00000200
- #define UVC_QUIRK_RESTORE_CTRLS_ON_INIT 0x00000400
- #define UVC_QUIRK_FORCE_Y8 0x00000800
--
-+#define UVC_QUIRK_MOTION 0x00001000
-+#define UVC_QUIRK_SINGLE_ISO 0x00002000
-+
- /* Format flags */
- #define UVC_FMT_FLAG_COMPRESSED 0x00000001
- #define UVC_FMT_FLAG_STREAM 0x00000002
-@@ -584,6 +586,7 @@ struct uvc_device {
- __u8 *status;
- struct input_dev *input;
- char input_phys[64];
-+ int motion;
- };
-
- enum uvc_handle_state {
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