#include <asm/page.h>
#include <asm/uaccess.h>
#include <linux/page-flags.h>
+#include <linux/videodev.h>
+#include <media/v4l2-ioctl.h>
#include "w9968cf.h"
#include "w9968cf_decoder.h"
MODULE_LICENSE(W9968CF_MODULE_LICENSE);
MODULE_SUPPORTED_DEVICE("Video");
-static int ovmod_load = W9968CF_OVMOD_LOAD;
static unsigned short simcams = W9968CF_SIMCAMS;
static short video_nr[]={[0 ... W9968CF_MAX_DEVICES-1] = -1}; /*-1=first free*/
static unsigned int packet_size[] = {[0 ... W9968CF_MAX_DEVICES-1] =
static unsigned int param_nv[24]; /* number of values per parameter */
-#ifdef CONFIG_KMOD
-module_param(ovmod_load, bool, 0644);
-#endif
module_param(simcams, ushort, 0644);
module_param_array(video_nr, short, ¶m_nv[0], 0444);
module_param_array(packet_size, uint, ¶m_nv[1], 0444);
module_param(specific_debug, bool, 0644);
#endif
-#ifdef CONFIG_KMOD
-MODULE_PARM_DESC(ovmod_load,
- "\n<0|1> Automatic 'ovcamchip' module loading."
- "\n0 disabled, 1 enabled."
- "\nIf enabled,'insmod' searches for the required 'ovcamchip'"
- "\nmodule in the system, according to its configuration, and"
- "\nattempts to load that module automatically. This action is"
- "\nperformed once as soon as the 'w9968cf' module is loaded"
- "\ninto memory."
- "\nDefault value is "__MODULE_STRING(W9968CF_OVMOD_LOAD)"."
- "\n");
-#endif
MODULE_PARM_DESC(simcams,
"\n<n> Number of cameras allowed to stream simultaneously."
"\nn may vary from 0 to "
****************************************************************************/
/* Video4linux interface */
-static const struct file_operations w9968cf_fops;
-static int w9968cf_open(struct inode*, struct file*);
-static int w9968cf_release(struct inode*, struct file*);
-static int w9968cf_mmap(struct file*, struct vm_area_struct*);
-static int w9968cf_ioctl(struct inode*, struct file*, unsigned, unsigned long);
-static ssize_t w9968cf_read(struct file*, char __user *, size_t, loff_t*);
-static int w9968cf_v4l_ioctl(struct inode*, struct file*, unsigned int,
+static const struct v4l2_file_operations w9968cf_fops;
+static int w9968cf_open(struct file *);
+static int w9968cf_release(struct file *);
+static int w9968cf_mmap(struct file *, struct vm_area_struct *);
+static long w9968cf_ioctl(struct file *, unsigned, unsigned long);
+static ssize_t w9968cf_read(struct file *, char __user *, size_t, loff_t *);
+static long w9968cf_v4l_ioctl(struct file *, unsigned int,
void __user *);
/* USB-specific */
unsigned short flags, char read_write,
u8 command, int size, union i2c_smbus_data*);
static u32 w9968cf_i2c_func(struct i2c_adapter*);
-static int w9968cf_i2c_attach_inform(struct i2c_client*);
-static int w9968cf_i2c_detach_inform(struct i2c_client*);
/* Memory management */
static void* rvmalloc(unsigned long size);
static int w9968cf_set_window(struct w9968cf_device*, struct video_window);
static int w9968cf_postprocess_frame(struct w9968cf_device*,
struct w9968cf_frame_t*);
-static int w9968cf_adjust_window_size(struct w9968cf_device*, u16* w, u16* h);
+static int w9968cf_adjust_window_size(struct w9968cf_device*, u32 *w, u32 *h);
static void w9968cf_init_framelist(struct w9968cf_device*);
static void w9968cf_push_frame(struct w9968cf_device*, u8 f_num);
static void w9968cf_pop_frame(struct w9968cf_device*,struct w9968cf_frame_t**);
for (i = 0; i < W9968CF_URBS; i++) {
urb = usb_alloc_urb(W9968CF_ISO_PACKETS, GFP_KERNEL);
- cam->urb[i] = urb;
if (!urb) {
for (j = 0; j < i; j++)
usb_free_urb(cam->urb[j]);
return -ENOMEM;
}
+ cam->urb[i] = urb;
urb->dev = udev;
urb->context = (void*)cam;
urb->pipe = usb_rcvisocpipe(udev, 1);
unsigned short flags, char read_write, u8 command,
int size, union i2c_smbus_data *data)
{
- struct w9968cf_device* cam = i2c_get_adapdata(adapter);
+ struct v4l2_device *v4l2_dev = i2c_get_adapdata(adapter);
+ struct w9968cf_device *cam = to_cam(v4l2_dev);
u8 i;
int err = 0;
- switch (addr) {
- case OV6xx0_SID:
- case OV7xx0_SID:
- break;
- default:
- DBG(4, "Rejected slave ID 0x%04X", addr)
- return -EINVAL;
- }
-
if (size == I2C_SMBUS_BYTE) {
/* Why addr <<= 1? See OVXXX0_SID defines in ovcamchip.h */
addr <<= 1;
if (read_write == I2C_SMBUS_WRITE)
err = w9968cf_i2c_adap_write_byte(cam, addr, command);
else if (read_write == I2C_SMBUS_READ)
- err = w9968cf_i2c_adap_read_byte(cam,addr,&data->byte);
-
+ for (i = 1; i <= W9968CF_I2C_RW_RETRIES; i++) {
+ err = w9968cf_i2c_adap_read_byte(cam, addr,
+ &data->byte);
+ if (err) {
+ if (w9968cf_smbus_refresh_bus(cam)) {
+ err = -EIO;
+ break;
+ }
+ } else
+ break;
+ }
} else if (size == I2C_SMBUS_BYTE_DATA) {
addr <<= 1;
DBG(4, "Unsupported I2C transfer mode (%d)", size)
return -EINVAL;
}
-
return err;
}
}
-static int w9968cf_i2c_attach_inform(struct i2c_client* client)
-{
- struct w9968cf_device* cam = i2c_get_adapdata(client->adapter);
- int id = client->driver->id, err = 0;
-
- if (id == I2C_DRIVERID_OVCAMCHIP) {
- cam->sensor_client = client;
- err = w9968cf_sensor_init(cam);
- if (err) {
- cam->sensor_client = NULL;
- return err;
- }
- } else {
- DBG(4, "Rejected client [%s] with driver [%s]",
- client->name, client->driver->driver.name)
- return -EINVAL;
- }
-
- DBG(5, "I2C attach client [%s] with driver [%s]",
- client->name, client->driver->driver.name)
-
- return 0;
-}
-
-
-static int w9968cf_i2c_detach_inform(struct i2c_client* client)
-{
- struct w9968cf_device* cam = i2c_get_adapdata(client->adapter);
-
- if (cam->sensor_client == client)
- cam->sensor_client = NULL;
-
- DBG(5, "I2C detach client [%s]", client->name)
-
- return 0;
-}
-
-
static int w9968cf_i2c_init(struct w9968cf_device* cam)
{
int err = 0;
};
static struct i2c_adapter adap = {
- .id = I2C_HW_SMBUS_W9968CF,
- .class = I2C_CLASS_CAM_DIGITAL,
.owner = THIS_MODULE,
- .client_register = w9968cf_i2c_attach_inform,
- .client_unregister = w9968cf_i2c_detach_inform,
.algo = &algo,
};
memcpy(&cam->i2c_adapter, &adap, sizeof(struct i2c_adapter));
strcpy(cam->i2c_adapter.name, "w9968cf");
cam->i2c_adapter.dev.parent = &cam->usbdev->dev;
- i2c_set_adapdata(&cam->i2c_adapter, cam);
+ i2c_set_adapdata(&cam->i2c_adapter, &cam->v4l2_dev);
DBG(6, "Registering I2C adapter with kernel...")
#define UNSC(x) ((x) >> 10)
/* Make sure we are using a supported resolution */
- if ((err = w9968cf_adjust_window_size(cam, (u16*)&win.width,
- (u16*)&win.height)))
+ if ((err = w9968cf_adjust_window_size(cam, &win.width, &win.height)))
goto error;
/* Scaling factors */
Return 0 on success, -1 otherwise.
--------------------------------------------------------------------------*/
static int
-w9968cf_adjust_window_size(struct w9968cf_device* cam, u16* width, u16* height)
+w9968cf_adjust_window_size(struct w9968cf_device *cam, u32 *width, u32 *height)
{
- u16 maxw, maxh;
-
- if ((*width < cam->minwidth) || (*height < cam->minheight))
- return -ERANGE;
+ unsigned int maxw, maxh, align;
maxw = cam->upscaling && !(cam->vpp_flag & VPP_DECOMPRESSION) &&
w9968cf_vpp ? max((u16)W9968CF_MAX_WIDTH, cam->maxwidth)
maxh = cam->upscaling && !(cam->vpp_flag & VPP_DECOMPRESSION) &&
w9968cf_vpp ? max((u16)W9968CF_MAX_HEIGHT, cam->maxheight)
: cam->maxheight;
+ align = (cam->vpp_flag & VPP_DECOMPRESSION) ? 4 : 0;
- if (*width > maxw)
- *width = maxw;
- if (*height > maxh)
- *height = maxh;
-
- if (cam->vpp_flag & VPP_DECOMPRESSION) {
- *width &= ~15L; /* multiple of 16 */
- *height &= ~15L;
- }
+ v4l_bound_align_image(width, cam->minwidth, maxw, align,
+ height, cam->minheight, maxh, align, 0);
PDBGG("Window size adjusted w=%u, h=%u ", *width, *height)
static int
w9968cf_sensor_cmd(struct w9968cf_device* cam, unsigned int cmd, void* arg)
{
- struct i2c_client* c = cam->sensor_client;
- int rc = 0;
-
- if (!c || !c->driver || !c->driver->command)
- return -EINVAL;
+ int rc;
- rc = c->driver->command(c, cmd, arg);
+ rc = v4l2_subdev_call(cam->sensor_sd, core, ioctl, cmd, arg);
/* The I2C driver returns -EPERM on non-supported controls */
return (rc < 0 && rc != -EPERM) ? rc : 0;
}
goto error;
/* NOTE: Make sure width and height are a multiple of 16 */
- switch (cam->sensor_client->addr) {
+ switch (v4l2_i2c_subdev_addr(cam->sensor_sd)) {
case OV6xx0_SID:
cam->maxwidth = 352;
cam->maxheight = 288;
cam->sensor = CC_UNKNOWN;
DBG(1, "Image sensor initialization failed for %s (/dev/video%d). "
"Try to detach and attach this device again",
- symbolic(camlist, cam->id), cam->v4ldev->minor)
+ symbolic(camlist, cam->id), cam->v4ldev->num)
return err;
}
{
mutex_lock(&w9968cf_devlist_mutex);
- DBG(2, "V4L device deregistered: /dev/video%d", cam->v4ldev->minor)
+ DBG(2, "V4L device deregistered: /dev/video%d", cam->v4ldev->num)
video_unregister_device(cam->v4ldev);
list_del(&cam->v4llist);
w9968cf_deallocate_memory(cam);
kfree(cam->control_buffer);
kfree(cam->data_buffer);
+ v4l2_device_unregister(&cam->v4l2_dev);
mutex_unlock(&w9968cf_devlist_mutex);
}
* Video4Linux interface *
****************************************************************************/
-static int w9968cf_open(struct inode* inode, struct file* filp)
+static int w9968cf_open(struct file *filp)
{
struct w9968cf_device* cam;
int err;
DBG(2, "No supported image sensor has been detected by the "
"'ovcamchip' module for the %s (/dev/video%d). Make "
"sure it is loaded *before* (re)connecting the camera.",
- symbolic(camlist, cam->id), cam->v4ldev->minor)
+ symbolic(camlist, cam->id), cam->v4ldev->num)
mutex_unlock(&cam->dev_mutex);
up_read(&w9968cf_disconnect);
return -ENODEV;
if (cam->users) {
DBG(2, "%s (/dev/video%d) has been already occupied by '%s'",
- symbolic(camlist, cam->id),cam->v4ldev->minor,cam->command)
+ symbolic(camlist, cam->id), cam->v4ldev->num, cam->command)
if ((filp->f_flags & O_NONBLOCK)||(filp->f_flags & O_NDELAY)) {
mutex_unlock(&cam->dev_mutex);
up_read(&w9968cf_disconnect);
}
DBG(5, "Opening '%s', /dev/video%d ...",
- symbolic(camlist, cam->id), cam->v4ldev->minor)
+ symbolic(camlist, cam->id), cam->v4ldev->num)
cam->streaming = 0;
cam->misconfigured = 0;
}
-static int w9968cf_release(struct inode* inode, struct file* filp)
+static int w9968cf_release(struct file *filp)
{
struct w9968cf_device* cam;
}
-static int
-w9968cf_ioctl(struct inode* inode, struct file* filp,
+static long
+w9968cf_ioctl(struct file *filp,
unsigned int cmd, unsigned long arg)
{
struct w9968cf_device* cam;
- int err;
+ long err;
cam = (struct w9968cf_device*)video_get_drvdata(video_devdata(filp));
return -EIO;
}
- err = w9968cf_v4l_ioctl(inode, filp, cmd, (void __user *)arg);
+ err = w9968cf_v4l_ioctl(filp, cmd, (void __user *)arg);
mutex_unlock(&cam->fileop_mutex);
return err;
}
-static int w9968cf_v4l_ioctl(struct inode* inode, struct file* filp,
- unsigned int cmd, void __user * arg)
+static long w9968cf_v4l_ioctl(struct file *filp,
+ unsigned int cmd, void __user *arg)
{
struct w9968cf_device* cam;
const char* v4l1_ioctls[] = {
.minheight = cam->minheight,
};
sprintf(cap.name, "W996[87]CF USB Camera #%d",
- cam->v4ldev->minor);
+ cam->v4ldev->num);
cap.maxwidth = (cam->upscaling && w9968cf_vpp)
? max((u16)W9968CF_MAX_WIDTH, cam->maxwidth)
: cam->maxwidth;
if (win.clipcount != 0 || win.flags != 0)
return -EINVAL;
- if ((err = w9968cf_adjust_window_size(cam, (u16*)&win.width,
- (u16*)&win.height))) {
+ if ((err = w9968cf_adjust_window_size(cam, &win.width,
+ &win.height))) {
DBG(4, "Resolution not supported (%ux%u). "
"VIDIOCSWIN failed", win.width, win.height)
return err;
{
struct video_mmap mmap;
struct w9968cf_frame_t* fr;
+ u32 w, h;
int err = 0;
if (copy_from_user(&mmap, arg, sizeof(mmap)))
}
}
- if ((err = w9968cf_adjust_window_size(cam, (u16*)&mmap.width,
- (u16*)&mmap.height))) {
+ w = mmap.width; h = mmap.height;
+ err = w9968cf_adjust_window_size(cam, &w, &h);
+ mmap.width = w; mmap.height = h;
+ if (err) {
DBG(4, "Resolution not supported (%dx%d). "
"VIDIOCMCAPTURE failed",
mmap.width, mmap.height)
}
-static const struct file_operations w9968cf_fops = {
+static const struct v4l2_file_operations w9968cf_fops = {
.owner = THIS_MODULE,
.open = w9968cf_open,
.release = w9968cf_release,
.read = w9968cf_read,
.ioctl = w9968cf_ioctl,
- .compat_ioctl = v4l_compat_ioctl32,
.mmap = w9968cf_mmap,
- .llseek = no_llseek,
};
struct list_head* ptr;
u8 sc = 0; /* number of simultaneous cameras */
static unsigned short dev_nr; /* 0 - we are handling device number n */
+ static unsigned short addrs[] = {
+ OV7xx0_SID,
+ OV6xx0_SID,
+ I2C_CLIENT_END
+ };
if (le16_to_cpu(udev->descriptor.idVendor) == winbond_id_table[0].idVendor &&
le16_to_cpu(udev->descriptor.idProduct) == winbond_id_table[0].idProduct)
if (!cam)
return -ENOMEM;
+ err = v4l2_device_register(&intf->dev, &cam->v4l2_dev);
+ if (err)
+ goto fail0;
+
mutex_init(&cam->dev_mutex);
mutex_lock(&cam->dev_mutex);
cam->usbdev = udev;
- /* NOTE: a local copy is used to avoid possible race conditions */
- memcpy(&cam->dev, &udev->dev, sizeof(struct device));
DBG(2, "%s detected", symbolic(camlist, mod_id))
}
strcpy(cam->v4ldev->name, symbolic(camlist, mod_id));
- cam->v4ldev->owner = THIS_MODULE;
- cam->v4ldev->type = VID_TYPE_CAPTURE | VID_TYPE_SCALES;
cam->v4ldev->fops = &w9968cf_fops;
cam->v4ldev->minor = video_nr[dev_nr];
cam->v4ldev->release = video_device_release;
video_set_drvdata(cam->v4ldev, cam);
- cam->v4ldev->dev = &cam->dev;
+ cam->v4ldev->v4l2_dev = &cam->v4l2_dev;
err = video_register_device(cam->v4ldev, VFL_TYPE_GRABBER,
video_nr[dev_nr]);
goto fail;
}
- DBG(2, "V4L device registered as /dev/video%d", cam->v4ldev->minor)
+ DBG(2, "V4L device registered as /dev/video%d", cam->v4ldev->num)
/* Set some basic constants */
w9968cf_configure_camera(cam, udev, mod_id, dev_nr);
w9968cf_turn_on_led(cam);
w9968cf_i2c_init(cam);
+ cam->sensor_sd = v4l2_i2c_new_subdev(&cam->v4l2_dev,
+ &cam->i2c_adapter,
+ "ovcamchip", "ovcamchip", 0, addrs);
usb_set_intfdata(intf, cam);
mutex_unlock(&cam->dev_mutex);
+
+ err = w9968cf_sensor_init(cam);
return 0;
fail: /* Free unused memory */
if (cam->v4ldev)
video_device_release(cam->v4ldev);
mutex_unlock(&cam->dev_mutex);
+ v4l2_device_unregister(&cam->v4l2_dev);
+fail0:
kfree(cam);
return err;
}
struct w9968cf_device* cam =
(struct w9968cf_device*)usb_get_intfdata(intf);
- down_write(&w9968cf_disconnect);
-
if (cam) {
+ down_write(&w9968cf_disconnect);
/* Prevent concurrent accesses to data */
mutex_lock(&cam->dev_mutex);
cam->disconnected = 1;
- DBG(2, "Disconnecting %s...", symbolic(camlist, cam->id))
+ DBG(2, "Disconnecting %s...", symbolic(camlist, cam->id));
+
+ v4l2_device_disconnect(&cam->v4l2_dev);
wake_up_interruptible_all(&cam->open);
DBG(2, "The device is open (/dev/video%d)! "
"Process name: %s. Deregistration and memory "
"deallocation are deferred on close.",
- cam->v4ldev->minor, cam->command)
+ cam->v4ldev->num, cam->command)
cam->misconfigured = 1;
w9968cf_stop_transfer(cam);
wake_up_interruptible(&cam->wait_queue);
w9968cf_release_resources(cam);
mutex_unlock(&cam->dev_mutex);
+ up_write(&w9968cf_disconnect);
- if (!cam->users)
+ if (!cam->users) {
kfree(cam);
+ }
}
-
- up_write(&w9968cf_disconnect);
}
KDBG(2, W9968CF_MODULE_NAME" "W9968CF_MODULE_VERSION)
KDBG(3, W9968CF_MODULE_AUTHOR)
- if (ovmod_load)
- request_module("ovcamchip");
-
if ((err = usb_register(&w9968cf_usb_driver)))
return err;
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff