* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. *
***************************************************************************/
-#include <linux/version.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/kmod.h>
MODULE_SUPPORTED_DEVICE("Video");
static int ovmod_load = W9968CF_OVMOD_LOAD;
-static int vppmod_load = W9968CF_VPPMOD_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] =
#ifdef CONFIG_KMOD
module_param(ovmod_load, bool, 0644);
-module_param(vppmod_load, bool, 0444);
#endif
module_param(simcams, ushort, 0644);
module_param_array(video_nr, short, ¶m_nv[0], 0444);
"\ninto memory."
"\nDefault value is "__MODULE_STRING(W9968CF_OVMOD_LOAD)"."
"\n");
-MODULE_PARM_DESC(vppmod_load,
- "\n<0|1> Automatic 'w9968cf-vpp' module loading."
- "\n0 disabled, 1 enabled."
- "\nIf enabled, every time an application attempts to open a"
- "\ncamera, 'insmod' searches for the video post-processing"
- "\nmodule in the system and loads it automatically (if"
- "\npresent). The optional 'w9968cf-vpp' module adds extra"
- "\n image manipulation functions to the 'w9968cf' module,like"
- "\nsoftware up-scaling,colour conversions and video decoding"
- "\nfor very high frame rates."
- "\nDefault value is "__MODULE_STRING(W9968CF_VPPMOD_LOAD)"."
- "\n");
#endif
MODULE_PARM_DESC(simcams,
"\n<n> Number of cameras allowed to stream simultaneously."
static void w9968cf_pop_frame(struct w9968cf_device*,struct w9968cf_frame_t**);
static void w9968cf_release_resources(struct w9968cf_device*);
-/* Intermodule communication */
-static int w9968cf_vppmod_detect(struct w9968cf_device*);
-static void w9968cf_vppmod_release(struct w9968cf_device*);
-
/****************************************************************************
static int w9968cf_i2c_attach_inform(struct i2c_client* client)
{
struct w9968cf_device* cam = i2c_get_adapdata(client->adapter);
- const char* clientname = i2c_clientname(client);
int id = client->driver->id, err = 0;
if (id == I2C_DRIVERID_OVCAMCHIP) {
}
} else {
DBG(4, "Rejected client [%s] with driver [%s]",
- clientname, client->driver->name)
+ client->name, client->driver->driver.name)
return -EINVAL;
}
DBG(5, "I2C attach client [%s] with driver [%s]",
- clientname, client->driver->name)
+ 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);
- const char* clientname = i2c_clientname(client);
if (cam->sensor_client == client)
cam->sensor_client = NULL;
- DBG(5, "I2C detach client [%s]", clientname)
+ DBG(5, "I2C detach client [%s]", client->name)
return 0;
}
int err = 0;
static struct i2c_algorithm algo = {
- .name = "W996[87]CF algorithm",
- .id = I2C_ALGO_SMBUS,
.smbus_xfer = w9968cf_i2c_smbus_xfer,
.algo_control = w9968cf_i2c_control,
.functionality = w9968cf_i2c_func,
};
static struct i2c_adapter adap = {
- .id = I2C_ALGO_SMBUS | I2C_HW_SMBUS_W9968CF,
+ .id = I2C_HW_SMBUS_W9968CF,
.class = I2C_CLASS_CAM_DIGITAL,
.owner = THIS_MODULE,
.client_register = w9968cf_i2c_attach_inform,
cam->streaming = 0;
cam->misconfigured = 0;
- if (!w9968cf_vpp)
- if ((err = w9968cf_vppmod_detect(cam)))
- goto out;
+ w9968cf_adjust_configuration(cam);
if ((err = w9968cf_allocate_memory(cam)))
goto deallocate_memory;
deallocate_memory:
w9968cf_deallocate_memory(cam);
-out:
DBG(2, "Failed to open the video device")
up(&cam->dev_sem);
up_read(&w9968cf_disconnect);
w9968cf_stop_transfer(cam);
- w9968cf_vppmod_release(cam);
-
if (cam->disconnected) {
w9968cf_release_resources(cam);
up(&cam->dev_sem);
};
#define V4L1_IOCTL(cmd) \
- ((_IOC_NR((cmd)) < sizeof(v4l1_ioctls)/sizeof(char*)) ? \
+ ((_IOC_NR((cmd)) < ARRAY_SIZE(v4l1_ioctls)) ? \
v4l1_ioctls[_IOC_NR((cmd))] : "?")
cam = (struct w9968cf_device*)video_get_drvdata(video_devdata(filp));
.release = w9968cf_release,
.read = w9968cf_read,
.ioctl = w9968cf_ioctl,
+ .compat_ioctl = v4l_compat_ioctl32,
.mmap = w9968cf_mmap,
.llseek = no_llseek,
};
/* Allocate 2 bytes of memory for camera control USB transfers */
- if (!(cam->control_buffer = (u16*)kmalloc(2, GFP_KERNEL))) {
+ if (!(cam->control_buffer = kmalloc(2, GFP_KERNEL))) {
DBG(1,"Couldn't allocate memory for camera control transfers")
err = -ENOMEM;
goto fail;
memset(cam->control_buffer, 0, 2);
/* Allocate 8 bytes of memory for USB data transfers to the FSB */
- if (!(cam->data_buffer = (u16*)kmalloc(8, GFP_KERNEL))) {
+ if (!(cam->data_buffer = kmalloc(8, GFP_KERNEL))) {
DBG(1, "Couldn't allocate memory for data "
"transfers to the FSB")
err = -ENOMEM;
static struct usb_driver w9968cf_usb_driver = {
- .owner = THIS_MODULE,
.name = "w9968cf",
.id_table = winbond_id_table,
.probe = w9968cf_usb_probe,
* Module init, exit and intermodule communication *
****************************************************************************/
-static int w9968cf_vppmod_detect(struct w9968cf_device* cam)
-{
- if (!w9968cf_vpp)
- if (vppmod_load)
- request_module("w9968cf-vpp");
-
- down(&w9968cf_vppmod_lock);
-
- if (!w9968cf_vpp) {
- DBG(4, "Video post-processing module not detected")
- w9968cf_adjust_configuration(cam);
- goto out;
- }
-
- if (!try_module_get(w9968cf_vpp->owner)) {
- DBG(1, "Couldn't increment the reference count of "
- "the video post-processing module")
- up(&w9968cf_vppmod_lock);
- return -ENOSYS;
- }
-
- w9968cf_vpp->busy++;
-
- DBG(5, "Video post-processing module detected")
-
-out:
- up(&w9968cf_vppmod_lock);
- return 0;
-}
-
-
-static void w9968cf_vppmod_release(struct w9968cf_device* cam)
-{
- down(&w9968cf_vppmod_lock);
-
- if (w9968cf_vpp && w9968cf_vpp->busy) {
- module_put(w9968cf_vpp->owner);
- w9968cf_vpp->busy--;
- wake_up(&w9968cf_vppmod_wait);
- DBG(5, "Video post-processing module released")
- }
-
- up(&w9968cf_vppmod_lock);
-}
-
-
-int w9968cf_vppmod_register(struct w9968cf_vpp_t* vpp)
-{
- down(&w9968cf_vppmod_lock);
-
- if (w9968cf_vpp) {
- KDBG(1, "Video post-processing module already registered")
- up(&w9968cf_vppmod_lock);
- return -EINVAL;
- }
-
- w9968cf_vpp = vpp;
- w9968cf_vpp->busy = 0;
-
- KDBG(2, "Video post-processing module registered")
- up(&w9968cf_vppmod_lock);
- return 0;
-}
-
-
-int w9968cf_vppmod_deregister(struct w9968cf_vpp_t* vpp)
-{
- down(&w9968cf_vppmod_lock);
-
- if (!w9968cf_vpp) {
- up(&w9968cf_vppmod_lock);
- return -EINVAL;
- }
-
- if (w9968cf_vpp != vpp) {
- KDBG(1, "Only the owner can unregister the video "
- "post-processing module")
- up(&w9968cf_vppmod_lock);
- return -EINVAL;
- }
-
- if (w9968cf_vpp->busy) {
- KDBG(2, "Video post-processing module busy. Wait for it to be "
- "released...")
- up(&w9968cf_vppmod_lock);
- wait_event(w9968cf_vppmod_wait, !w9968cf_vpp->busy);
- w9968cf_vpp = NULL;
- goto out;
- }
-
- w9968cf_vpp = NULL;
-
- up(&w9968cf_vppmod_lock);
-
-out:
- KDBG(2, "Video post-processing module unregistered")
- return 0;
-}
-
-
static int __init w9968cf_module_init(void)
{
int err;
module_init(w9968cf_module_init);
module_exit(w9968cf_module_exit);
-
-EXPORT_SYMBOL(w9968cf_vppmod_register);
-EXPORT_SYMBOL(w9968cf_vppmod_deregister);
git://git.onelab.eu / linux-2.6.git / blobdiff