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authorLuca Risolia <luca.risolia@studio.unibo.it>2006-02-25 06:54:18 +0000
committerGreg Kroah-Hartman <gregkh@suse.de>2006-03-20 14:49:59 -0800
commitccad7789d5e557644d1c866b018394872af0ec5b (patch)
treec3894cc5b75fe11b4db85229927591387aa332a8 /drivers/usb/media/et61x251.h
parent2ffab02fea5880da284dc5511479b25a796a8dee (diff)
[PATCH] USB: ET61X[12]51 driver updates
USB: ET61X[12]51 driver updates Changes: + new, - removed, * cleanup, @ bugfix @ Fix stream_interrupt() @ Fix vidioc_enum_input() and split vidioc_gs_input() @ Need usb_get|put_dev() when disconnecting, if the device is open * Use wait_event_interruptible_timeout() instead of wait_event_interruptible() when waiting for video frames * replace wake_up_interruptible(&wait_stream) with wake_up(&wait_stream) * Cleanups and updates in the documentation * Use mutexes instead of semaphores + Use per-device sensor structures + Add support for PAS202BCA image sensors + Add frame_timeout module parameter Signed-off-by: Luca Risolia <luca.risolia@studio.unibo.it> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/media/et61x251.h')
-rw-r--r--drivers/usb/media/et61x251.h28
1 files changed, 21 insertions, 7 deletions
diff --git a/drivers/usb/media/et61x251.h b/drivers/usb/media/et61x251.h
index 652238f329f..eee8afc9be7 100644
--- a/drivers/usb/media/et61x251.h
+++ b/drivers/usb/media/et61x251.h
@@ -33,7 +33,9 @@
#include <linux/types.h>
#include <linux/param.h>
#include <linux/rwsem.h>
-#include <asm/semaphore.h>
+#include <linux/mutex.h>
+#include <linux/stddef.h>
+#include <linux/string.h>
#include "et61x251_sensor.h"
@@ -51,6 +53,7 @@
#define ET61X251_ALTERNATE_SETTING 13
#define ET61X251_URB_TIMEOUT msecs_to_jiffies(2 * ET61X251_ISO_PACKETS)
#define ET61X251_CTRL_TIMEOUT 100
+#define ET61X251_FRAME_TIMEOUT 2
/*****************************************************************************/
@@ -127,15 +130,16 @@ struct et61x251_sysfs_attr {
struct et61x251_module_param {
u8 force_munmap;
+ u16 frame_timeout;
};
-static DECLARE_MUTEX(et61x251_sysfs_lock);
+static DEFINE_MUTEX(et61x251_sysfs_lock);
static DECLARE_RWSEM(et61x251_disconnect);
struct et61x251_device {
struct video_device* v4ldev;
- struct et61x251_sensor* sensor;
+ struct et61x251_sensor sensor;
struct usb_device* usbdev;
struct urb* urb[ET61X251_URBS];
@@ -157,19 +161,28 @@ struct et61x251_device {
enum et61x251_dev_state state;
u8 users;
- struct semaphore dev_sem, fileop_sem;
+ struct mutex dev_mutex, fileop_mutex;
spinlock_t queue_lock;
wait_queue_head_t open, wait_frame, wait_stream;
};
/*****************************************************************************/
+struct et61x251_device*
+et61x251_match_id(struct et61x251_device* cam, const struct usb_device_id *id)
+{
+ if (usb_match_id(usb_ifnum_to_if(cam->usbdev, 0), id))
+ return cam;
+
+ return NULL;
+}
+
+
void
et61x251_attach_sensor(struct et61x251_device* cam,
struct et61x251_sensor* sensor)
{
- cam->sensor = sensor;
- cam->sensor->usbdev = cam->usbdev;
+ memcpy(&cam->sensor, sensor, sizeof(struct et61x251_sensor));
}
/*****************************************************************************/
@@ -212,7 +225,8 @@ do { \
#undef PDBG
#define PDBG(fmt, args...) \
-dev_info(&cam->dev, "[%s:%d] " fmt "\n", __FUNCTION__, __LINE__ , ## args)
+dev_info(&cam->usbdev->dev, "[%s:%d] " fmt "\n", \
+ __FUNCTION__, __LINE__ , ## args)
#undef PDBGG
#define PDBGG(fmt, args...) do {;} while(0) /* placeholder */