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V4L/DVB (4924): Fix some bugs on usbvision due to the merge into one module

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Found the bug that prevented the driver from loading : a module
param conflict between usbvision-i2c and usbvision-core (debug
parameter).
- correct the module param "debug" conflics in usbvision-i2c.c and
usbvision-core.c
- add some debug printouts in usbvision-core.c VDIOC_QBUF/VIDIOC_DQBUF
- usbvision-core.c : add vb->field = V4L2_FIELD_NONE in VIDIOC_DQBUF

Signed-off-by: Thierry MERLE <thierry.merle@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Thierry MERLE 2006-12-04 08:31:04 -03:00 committed by Mauro Carvalho Chehab
parent 6714b01263
commit c8400c7007
2 changed files with 12 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/media/video/usbvision/usbvision-core.c
View File

@ -4240,6 +4240,7 @@ static int usbvision_v4l2_do_ioctl(struct inode *inode, struct file *file,
/* set v4l2_format index */
frame->v4l2_format = usbvision->palette;
PDEBUG(DBG_IOCTL, "VIDIOC_QBUF frame=%d",vb->index);
return usbvision_new_frame(usbvision, vb->index);
}
@ -4269,8 +4270,8 @@ static int usbvision_v4l2_do_ioctl(struct inode *inode, struct file *file,
if (vb->index == -1)
return -EINVAL;
PDEBUG(DBG_IOCTL, "VIDIOC_DQBUF frame=%d, grabstate=%d",
vb->index, usbvision->frame[vb->index].grabstate);
PDEBUG(DBG_IOCTL, "VIDIOC_DQBUF frame=%d, grabstate=%d, curframeNum=%d",
vb->index, usbvision->frame[vb->index].grabstate,usbvision->curFrameNum);
switch (usbvision->frame[vb->index].grabstate) {
case FrameState_Unused:
@ -4295,6 +4296,7 @@ static int usbvision_v4l2_do_ioctl(struct inode *inode, struct file *file,
errCode = (usbvision->frame[vb->index].grabstate == FrameState_Error) ? -EIO : 0;
vb->memory = V4L2_MEMORY_MMAP;
vb->flags = V4L2_BUF_FLAG_MAPPED | V4L2_BUF_FLAG_QUEUED | V4L2_BUF_FLAG_DONE;
vb->field = V4L2_FIELD_NONE;
vb->sequence = usbvision->frame[vb->index].sequence;
usbvision->frame[vb->index].grabstate = FrameState_Unused;
break;

20
drivers/media/video/usbvision/usbvision-i2c.c
View File

@ -39,18 +39,14 @@
#include <linux/i2c.h>
#include "usbvision-i2c.h"
static int debug = 0;
static int debug_i2c_usb = 0;
#if defined(module_param) // Showing parameters under SYSFS
module_param (debug, int, 0444); // debug mode of the device driver
module_param (debug_i2c_usb, int, 0444); // debug_i2c_usb mode of the device driver
#else
MODULE_PARM(debug, "i"); // debug mode of the device driver
MODULE_PARM(debug_i2c_usb, "i"); // debug_i2c_usb mode of the device driver
#endif
MODULE_AUTHOR("Joerg Heckenbach");
MODULE_DESCRIPTION("I2C algorithm for USB-I2C-bridges");
MODULE_LICENSE("GPL");
static inline int try_write_address(struct i2c_adapter *i2c_adap,
unsigned char addr, int retries)
@ -71,7 +67,7 @@ static inline int try_write_address(struct i2c_adapter *i2c_adap,
break;
udelay(adap->udelay);
}
if (debug) {
if (debug_i2c_usb) {
if (i) {
info("%s: Needed %d retries for address %#2x", __FUNCTION__, i, addr);
info("%s: Maybe there's no device at this address", __FUNCTION__);
@ -98,7 +94,7 @@ static inline int try_read_address(struct i2c_adapter *i2c_adap,
break;
udelay(adap->udelay);
}
if (debug) {
if (debug_i2c_usb) {
if (i) {
info("%s: Needed %d retries for address %#2x", __FUNCTION__, i, addr);
info("%s: Maybe there's no device at this address", __FUNCTION__);
@ -170,7 +166,7 @@ usb_xfer(struct i2c_adapter *i2c_adap, struct i2c_msg msgs[], int num)
pmsg = &msgs[i];
ret = usb_find_address(i2c_adap, pmsg, i2c_adap->retries, &addr);
if (ret != 0) {
if (debug) {
if (debug_i2c_usb) {
info("%s: got NAK from device, message #%d\n", __FUNCTION__, i);
}
return (ret < 0) ? ret : -EREMOTEIO;
@ -236,7 +232,7 @@ int usbvision_i2c_usb_add_bus(struct i2c_adapter *adap)
i2c_add_adapter(adap);
if (debug) {
if (debug_i2c_usb) {
info("i2c bus for %s registered", adap->name);
}
@ -249,7 +245,7 @@ int usbvision_i2c_usb_del_bus(struct i2c_adapter *adap)
i2c_del_adapter(adap);
if (debug) {
if (debug_i2c_usb) {
info("i2c bus for %s unregistered", adap->name);
}
#ifdef MODULE