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authorLuca Risolia <luca.risolia@studio.unibo.it>2006-02-08 00:05:27 +0000
committerGreg Kroah-Hartman <gregkh@suse.de>2006-03-20 14:49:59 -0800
commit9e47a52bf36fa4a24f56f878f4ca57eb885c78dd (patch)
tree366b55f9a85f80d3bd2877d498d0fae2034419b1 /drivers/usb
parentaddf36fec058691f7ba4f95b5487d140f4a86f5a (diff)
downloadop-kernel-dev-9e47a52bf36fa4a24f56f878f4ca57eb885c78dd.zip
op-kernel-dev-9e47a52bf36fa4a24f56f878f4ca57eb885c78dd.tar.gz
[PATCH] USB: ZC0301 driver updates
"Cosmetic" driver updates for the ZC0301 driver: - Fix stream_interrupt() (and work around a possible kernel bug); - Fix vidioc_enum_input() and split vidioc_gs_input() in two parts; - Use wait_event_interruptible_timeout() instead of wait_event_interruptible() when waiting for video frames; - replace erroneous wake_up_interruptible(&wait_stream) with wake_up(&wait_stream); - Cosmetic cleanups in the documentation. Signed-off-by: Luca Risolia <luca.risolia@studio.unibo.it> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/media/zc0301.h2
-rw-r--r--drivers/usb/media/zc0301_core.c43
-rw-r--r--drivers/usb/media/zc0301_pas202bcb.c2
3 files changed, 30 insertions, 17 deletions
diff --git a/drivers/usb/media/zc0301.h b/drivers/usb/media/zc0301.h
index 6fa5075..cb1a082 100644
--- a/drivers/usb/media/zc0301.h
+++ b/drivers/usb/media/zc0301.h
@@ -45,7 +45,7 @@
#define ZC0301_MAX_DEVICES 64
#define ZC0301_FORCE_MUNMAP 0
#define ZC0301_MAX_FRAMES 32
-#define ZC0301_COMPRESSION_QUALITY 2
+#define ZC0301_COMPRESSION_QUALITY 0
#define ZC0301_URBS 2
#define ZC0301_ISO_PACKETS 7
#define ZC0301_ALTERNATE_SETTING 7
diff --git a/drivers/usb/media/zc0301_core.c b/drivers/usb/media/zc0301_core.c
index 238f60f..7e8b167 100644
--- a/drivers/usb/media/zc0301_core.c
+++ b/drivers/usb/media/zc0301_core.c
@@ -3,9 +3,9 @@
* *
* Copyright (C) 2006 by Luca Risolia <luca.risolia@studio.unibo.it> *
* *
- * Informations about the chip internals to enable the I2C protocol have *
- * been taken from the documentation of the ZC030x Video4Linux1 driver *
- * written by Andrew Birkett <andy@nobugs.org> *
+ * Informations about the chip internals needed to enable the I2C protocol *
+ * have been taken from the documentation of the ZC030x Video4Linux1 *
+ * driver written by Andrew Birkett <andy@nobugs.org> *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
@@ -54,8 +54,8 @@
#define ZC0301_MODULE_AUTHOR "(C) 2006 Luca Risolia"
#define ZC0301_AUTHOR_EMAIL "<luca.risolia@studio.unibo.it>"
#define ZC0301_MODULE_LICENSE "GPL"
-#define ZC0301_MODULE_VERSION "1:1.00"
-#define ZC0301_MODULE_VERSION_CODE KERNEL_VERSION(1, 0, 0)
+#define ZC0301_MODULE_VERSION "1:1.01"
+#define ZC0301_MODULE_VERSION_CODE KERNEL_VERSION(1, 0, 1)
/*****************************************************************************/
@@ -314,7 +314,7 @@ static void zc0301_urb_complete(struct urb *urb, struct pt_regs* regs)
if ((*f))
(*f)->state = F_QUEUED;
DBG(3, "Stream interrupted");
- wake_up_interruptible(&cam->wait_stream);
+ wake_up(&cam->wait_stream);
}
if (cam->state & DEV_DISCONNECTED)
@@ -526,7 +526,7 @@ static int zc0301_stream_interrupt(struct zc0301_device* cam)
ZC0301_URB_TIMEOUT);
if (cam->state & DEV_DISCONNECTED)
return -ENODEV;
- else if (!timeout) {
+ else if (cam->stream != STREAM_OFF) {
cam->state |= DEV_MISCONFIGURED;
DBG(1, "URB timeout reached. The camera is misconfigured. To "
"use it, close and open /dev/video%d again.",
@@ -547,8 +547,7 @@ zc0301_set_compression(struct zc0301_device* cam,
if ((r = zc0301_read_reg(cam, 0x0008)) < 0)
err += r;
- err += zc0301_write_reg(cam, 0x0008,
- r | 0x11 | (compression->quality >> 1));
+ err += zc0301_write_reg(cam, 0x0008, r | 0x11 | compression->quality);
return err ? -EIO : 0;
}
@@ -737,8 +736,7 @@ static int zc0301_release(struct inode* inode, struct file* filp)
static ssize_t
-zc0301_read(struct file* filp, char __user * buf,
- size_t count, loff_t* f_pos)
+zc0301_read(struct file* filp, char __user * buf, size_t count, loff_t* f_pos)
{
struct zc0301_device* cam = video_get_drvdata(video_devdata(filp));
struct zc0301_frame_t* f, * i;
@@ -1019,6 +1017,7 @@ zc0301_vidioc_enuminput(struct zc0301_device* cam, void __user * arg)
memset(&i, 0, sizeof(i));
strcpy(i.name, "Camera");
+ i.type = V4L2_INPUT_TYPE_CAMERA;
if (copy_to_user(arg, &i, sizeof(i)))
return -EFAULT;
@@ -1028,7 +1027,19 @@ zc0301_vidioc_enuminput(struct zc0301_device* cam, void __user * arg)
static int
-zc0301_vidioc_gs_input(struct zc0301_device* cam, void __user * arg)
+zc0301_vidioc_g_input(struct zc0301_device* cam, void __user * arg)
+{
+ int index = 0;
+
+ if (copy_to_user(arg, &index, sizeof(index)))
+ return -EFAULT;
+
+ return 0;
+}
+
+
+static int
+zc0301_vidioc_s_input(struct zc0301_device* cam, void __user * arg)
{
int index;
@@ -1446,7 +1457,7 @@ zc0301_vidioc_s_jpegcomp(struct zc0301_device* cam, void __user * arg)
if (copy_from_user(&jc, arg, sizeof(jc)))
return -EFAULT;
- if (jc.quality < 0 || jc.quality > 3)
+ if (jc.quality != 0)
return -EINVAL;
if (cam->stream == STREAM_ON)
@@ -1738,8 +1749,10 @@ static int zc0301_ioctl_v4l2(struct inode* inode, struct file* filp,
return zc0301_vidioc_enuminput(cam, arg);
case VIDIOC_G_INPUT:
+ return zc0301_vidioc_g_input(cam, arg);
+
case VIDIOC_S_INPUT:
- return zc0301_vidioc_gs_input(cam, arg);
+ return zc0301_vidioc_s_input(cam, arg);
case VIDIOC_QUERYCTRL:
return zc0301_vidioc_query_ctrl(cam, arg);
@@ -1980,7 +1993,7 @@ static void zc0301_usb_disconnect(struct usb_interface* intf)
zc0301_stop_transfer(cam);
cam->state |= DEV_DISCONNECTED;
wake_up_interruptible(&cam->wait_frame);
- wake_up_interruptible(&cam->wait_stream);
+ wake_up(&cam->wait_stream);
} else {
cam->state |= DEV_DISCONNECTED;
zc0301_release_resources(cam);
diff --git a/drivers/usb/media/zc0301_pas202bcb.c b/drivers/usb/media/zc0301_pas202bcb.c
index 83b45f1..32b9b93 100644
--- a/drivers/usb/media/zc0301_pas202bcb.c
+++ b/drivers/usb/media/zc0301_pas202bcb.c
@@ -318,7 +318,7 @@ static struct zc0301_sensor pas202bcb = {
.width = 640,
.height = 480,
.pixelformat = V4L2_PIX_FMT_JPEG,
- .priv = 16,
+ .priv = 8,
},
};
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