diff options
Diffstat (limited to 'drivers/media/video/usbvideo/vicam.c')
| -rw-r--r-- | drivers/media/video/usbvideo/vicam.c | 184 |
1 files changed, 1 insertions, 183 deletions
diff --git a/drivers/media/video/usbvideo/vicam.c b/drivers/media/video/usbvideo/vicam.c index 982b115193f8..ff555129c82f 100644 --- a/drivers/media/video/usbvideo/vicam.c +++ b/drivers/media/video/usbvideo/vicam.c @@ -42,7 +42,6 @@ #include <linux/usb.h> #include <linux/vmalloc.h> #include <linux/slab.h> -#include <linux/proc_fs.h> #include <linux/mutex.h> #include "usbvideo.h" @@ -417,11 +416,6 @@ struct vicam_camera { u8 open_count; u8 bulkEndpoint; int needsDummyRead; - -#if defined(CONFIG_VIDEO_PROC_FS) - struct proc_dir_entry *proc_dir; -#endif - }; static int vicam_probe( struct usb_interface *intf, const struct usb_device_id *id); @@ -1065,175 +1059,6 @@ vicam_mmap(struct file *file, struct vm_area_struct *vma) return 0; } -#if defined(CONFIG_VIDEO_PROC_FS) - -static struct proc_dir_entry *vicam_proc_root = NULL; - -static int vicam_read_helper(char *page, char **start, off_t off, - int count, int *eof, int value) -{ - char *out = page; - int len; - - out += sprintf(out, "%d",value); - - len = out - page; - len -= off; - if (len < count) { - *eof = 1; - if (len <= 0) - return 0; - } else - len = count; - - *start = page + off; - return len; -} - -static int vicam_read_proc_shutter(char *page, char **start, off_t off, - int count, int *eof, void *data) -{ - return vicam_read_helper(page,start,off,count,eof, - ((struct vicam_camera *)data)->shutter_speed); -} - -static int vicam_read_proc_gain(char *page, char **start, off_t off, - int count, int *eof, void *data) -{ - return vicam_read_helper(page,start,off,count,eof, - ((struct vicam_camera *)data)->gain); -} - -static int -vicam_write_proc_shutter(struct file *file, const char *buffer, - unsigned long count, void *data) -{ - u16 stmp; - char kbuf[8]; - struct vicam_camera *cam = (struct vicam_camera *) data; - - if (count > 6) - return -EINVAL; - - if (copy_from_user(kbuf, buffer, count)) - return -EFAULT; - - stmp = (u16) simple_strtoul(kbuf, NULL, 10); - if (stmp < 4 || stmp > 32000) - return -EINVAL; - - cam->shutter_speed = stmp; - - return count; -} - -static int -vicam_write_proc_gain(struct file *file, const char *buffer, - unsigned long count, void *data) -{ - u16 gtmp; - char kbuf[8]; - - struct vicam_camera *cam = (struct vicam_camera *) data; - - if (count > 4) - return -EINVAL; - - if (copy_from_user(kbuf, buffer, count)) - return -EFAULT; - - gtmp = (u16) simple_strtoul(kbuf, NULL, 10); - if (gtmp > 255) - return -EINVAL; - cam->gain = gtmp; - - return count; -} - -static void -vicam_create_proc_root(void) -{ - vicam_proc_root = proc_mkdir("video/vicam", NULL); - - if (vicam_proc_root) - vicam_proc_root->owner = THIS_MODULE; - else - printk(KERN_ERR - "could not create /proc entry for vicam!"); -} - -static void -vicam_destroy_proc_root(void) -{ - if (vicam_proc_root) - remove_proc_entry("video/vicam", 0); -} - -static void -vicam_create_proc_entry(struct vicam_camera *cam) -{ - char name[64]; - struct proc_dir_entry *ent; - - DBG(KERN_INFO "vicam: creating proc entry\n"); - - if (!vicam_proc_root || !cam) { - printk(KERN_INFO - "vicam: could not create proc entry, %s pointer is null.\n", - (!cam ? "camera" : "root")); - return; - } - - sprintf(name, "video%d", cam->vdev.minor); - - cam->proc_dir = proc_mkdir(name, vicam_proc_root); - - if ( !cam->proc_dir ) - return; // FIXME: We should probably return an error here - - ent = create_proc_entry("shutter", S_IFREG | S_IRUGO | S_IWUSR, - cam->proc_dir); - if (ent) { - ent->data = cam; - ent->read_proc = vicam_read_proc_shutter; - ent->write_proc = vicam_write_proc_shutter; - ent->size = 64; - } - - ent = create_proc_entry("gain", S_IFREG | S_IRUGO | S_IWUSR, - cam->proc_dir); - if (ent) { - ent->data = cam; - ent->read_proc = vicam_read_proc_gain; - ent->write_proc = vicam_write_proc_gain; - ent->size = 64; - } -} - -static void -vicam_destroy_proc_entry(void *ptr) -{ - struct vicam_camera *cam = (struct vicam_camera *) ptr; - char name[16]; - - if ( !cam->proc_dir ) - return; - - sprintf(name, "video%d", cam->vdev.minor); - remove_proc_entry("shutter", cam->proc_dir); - remove_proc_entry("gain", cam->proc_dir); - remove_proc_entry(name,vicam_proc_root); - cam->proc_dir = NULL; - -} - -#else -static inline void vicam_create_proc_root(void) { } -static inline void vicam_destroy_proc_root(void) { } -static inline void vicam_create_proc_entry(struct vicam_camera *cam) { } -static inline void vicam_destroy_proc_entry(void *ptr) { } -#endif - static const struct file_operations vicam_fops = { .owner = THIS_MODULE, .open = vicam_open, @@ -1305,13 +1130,12 @@ vicam_probe( struct usb_interface *intf, const struct usb_device_id *id) } if ((cam = - kmalloc(sizeof (struct vicam_camera), GFP_KERNEL)) == NULL) { + kzalloc(sizeof (struct vicam_camera), GFP_KERNEL)) == NULL) { printk(KERN_WARNING "could not allocate kernel memory for vicam_camera struct\n"); return -ENOMEM; } - memset(cam, 0, sizeof (struct vicam_camera)); cam->shutter_speed = 15; @@ -1330,8 +1154,6 @@ vicam_probe( struct usb_interface *intf, const struct usb_device_id *id) return -EIO; } - vicam_create_proc_entry(cam); - printk(KERN_INFO "ViCam webcam driver now controlling video device %d\n",cam->vdev.minor); usb_set_intfdata (intf, cam); @@ -1363,8 +1185,6 @@ vicam_disconnect(struct usb_interface *intf) cam->udev = NULL; - vicam_destroy_proc_entry(cam); - /* the only thing left to do is synchronize with * our close/release function on who should release * the camera memory. if there are any users using the @@ -1390,7 +1210,6 @@ usb_vicam_init(void) { int retval; DBG(KERN_INFO "ViCam-based WebCam driver startup\n"); - vicam_create_proc_root(); retval = usb_register(&vicam_driver); if (retval) printk(KERN_WARNING "usb_register failed!\n"); @@ -1404,7 +1223,6 @@ usb_vicam_exit(void) "ViCam-based WebCam driver shutdown\n"); usb_deregister(&vicam_driver); - vicam_destroy_proc_root(); } module_init(usb_vicam_init); |
