| /* |
| * Video capture interface for Linux version 2 |
| * |
| * A generic video device interface for the LINUX operating system |
| * using a set of device structures/vectors for low level operations. |
| * |
| * 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 the Free Software Foundation; either version |
| * 2 of the License, or (at your option) any later version. |
| * |
| * Authors: Alan Cox, <alan@redhat.com> (version 1) |
| * Mauro Carvalho Chehab <mchehab@infradead.org> (version 2) |
| * |
| * Fixes: 20000516 Claudio Matsuoka <claudio@conectiva.com> |
| * - Added procfs support |
| */ |
| |
| #define dbgarg(cmd, fmt, arg...) \ |
| if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) { \ |
| printk (KERN_DEBUG "%s: ", vfd->name); \ |
| v4l_printk_ioctl(cmd); \ |
| printk (KERN_DEBUG "%s: " fmt, vfd->name, ## arg); \ |
| } |
| |
| #define dbgarg2(fmt, arg...) \ |
| if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) \ |
| printk (KERN_DEBUG "%s: " fmt, vfd->name, ## arg); |
| |
| #include <linux/module.h> |
| #include <linux/types.h> |
| #include <linux/kernel.h> |
| #include <linux/smp_lock.h> |
| #include <linux/mm.h> |
| #include <linux/string.h> |
| #include <linux/errno.h> |
| #include <linux/init.h> |
| #include <linux/kmod.h> |
| #include <linux/slab.h> |
| #include <asm/uaccess.h> |
| #include <asm/system.h> |
| |
| #define __OLD_VIDIOC_ /* To allow fixing old calls*/ |
| #include <linux/videodev2.h> |
| |
| #ifdef CONFIG_VIDEO_V4L1 |
| #include <linux/videodev.h> |
| #endif |
| #include <media/v4l2-common.h> |
| |
| #define VIDEO_NUM_DEVICES 256 |
| #define VIDEO_NAME "video4linux" |
| |
| /* |
| * sysfs stuff |
| */ |
| |
| static ssize_t show_name(struct class_device *cd, char *buf) |
| { |
| struct video_device *vfd = container_of(cd, struct video_device, |
| class_dev); |
| return sprintf(buf,"%.*s\n",(int)sizeof(vfd->name),vfd->name); |
| } |
| |
| static CLASS_DEVICE_ATTR(name, S_IRUGO, show_name, NULL); |
| |
| struct video_device *video_device_alloc(void) |
| { |
| struct video_device *vfd; |
| |
| vfd = kzalloc(sizeof(*vfd),GFP_KERNEL); |
| return vfd; |
| } |
| |
| void video_device_release(struct video_device *vfd) |
| { |
| kfree(vfd); |
| } |
| |
| static void video_release(struct class_device *cd) |
| { |
| struct video_device *vfd = container_of(cd, struct video_device, |
| class_dev); |
| |
| #if 1 |
| /* needed until all drivers are fixed */ |
| if (!vfd->release) |
| return; |
| #endif |
| vfd->release(vfd); |
| } |
| |
| static struct class video_class = { |
| .name = VIDEO_NAME, |
| .release = video_release, |
| }; |
| |
| /* |
| * Active devices |
| */ |
| |
| static struct video_device *video_device[VIDEO_NUM_DEVICES]; |
| static DEFINE_MUTEX(videodev_lock); |
| |
| struct video_device* video_devdata(struct file *file) |
| { |
| return video_device[iminor(file->f_path.dentry->d_inode)]; |
| } |
| |
| /* |
| * Open a video device - FIXME: Obsoleted |
| */ |
| static int video_open(struct inode *inode, struct file *file) |
| { |
| unsigned int minor = iminor(inode); |
| int err = 0; |
| struct video_device *vfl; |
| const struct file_operations *old_fops; |
| |
| if(minor>=VIDEO_NUM_DEVICES) |
| return -ENODEV; |
| mutex_lock(&videodev_lock); |
| vfl=video_device[minor]; |
| if(vfl==NULL) { |
| mutex_unlock(&videodev_lock); |
| request_module("char-major-%d-%d", VIDEO_MAJOR, minor); |
| mutex_lock(&videodev_lock); |
| vfl=video_device[minor]; |
| if (vfl==NULL) { |
| mutex_unlock(&videodev_lock); |
| return -ENODEV; |
| } |
| } |
| old_fops = file->f_op; |
| file->f_op = fops_get(vfl->fops); |
| if(file->f_op->open) |
| err = file->f_op->open(inode,file); |
| if (err) { |
| fops_put(file->f_op); |
| file->f_op = fops_get(old_fops); |
| } |
| fops_put(old_fops); |
| mutex_unlock(&videodev_lock); |
| return err; |
| } |
| |
| /* |
| * helper function -- handles userspace copying for ioctl arguments |
| */ |
| |
| #ifdef __OLD_VIDIOC_ |
| static unsigned int |
| video_fix_command(unsigned int cmd) |
| { |
| switch (cmd) { |
| case VIDIOC_OVERLAY_OLD: |
| cmd = VIDIOC_OVERLAY; |
| break; |
| case VIDIOC_S_PARM_OLD: |
| cmd = VIDIOC_S_PARM; |
| break; |
| case VIDIOC_S_CTRL_OLD: |
| cmd = VIDIOC_S_CTRL; |
| break; |
| case VIDIOC_G_AUDIO_OLD: |
| cmd = VIDIOC_G_AUDIO; |
| break; |
| case VIDIOC_G_AUDOUT_OLD: |
| cmd = VIDIOC_G_AUDOUT; |
| break; |
| case VIDIOC_CROPCAP_OLD: |
| cmd = VIDIOC_CROPCAP; |
| break; |
| } |
| return cmd; |
| } |
| #endif |
| |
| /* |
| * Obsolete usercopy function - Should be removed soon |
| */ |
| int |
| video_usercopy(struct inode *inode, struct file *file, |
| unsigned int cmd, unsigned long arg, |
| int (*func)(struct inode *inode, struct file *file, |
| unsigned int cmd, void *arg)) |
| { |
| char sbuf[128]; |
| void *mbuf = NULL; |
| void *parg = NULL; |
| int err = -EINVAL; |
| int is_ext_ctrl; |
| size_t ctrls_size = 0; |
| void __user *user_ptr = NULL; |
| |
| #ifdef __OLD_VIDIOC_ |
| cmd = video_fix_command(cmd); |
| #endif |
| is_ext_ctrl = (cmd == VIDIOC_S_EXT_CTRLS || cmd == VIDIOC_G_EXT_CTRLS || |
| cmd == VIDIOC_TRY_EXT_CTRLS); |
| |
| /* Copy arguments into temp kernel buffer */ |
| switch (_IOC_DIR(cmd)) { |
| case _IOC_NONE: |
| parg = NULL; |
| break; |
| case _IOC_READ: |
| case _IOC_WRITE: |
| case (_IOC_WRITE | _IOC_READ): |
| if (_IOC_SIZE(cmd) <= sizeof(sbuf)) { |
| parg = sbuf; |
| } else { |
| /* too big to allocate from stack */ |
| mbuf = kmalloc(_IOC_SIZE(cmd),GFP_KERNEL); |
| if (NULL == mbuf) |
| return -ENOMEM; |
| parg = mbuf; |
| } |
| |
| err = -EFAULT; |
| if (_IOC_DIR(cmd) & _IOC_WRITE) |
| if (copy_from_user(parg, (void __user *)arg, _IOC_SIZE(cmd))) |
| goto out; |
| break; |
| } |
| if (is_ext_ctrl) { |
| struct v4l2_ext_controls *p = parg; |
| |
| /* In case of an error, tell the caller that it wasn't |
| a specific control that caused it. */ |
| p->error_idx = p->count; |
| user_ptr = (void __user *)p->controls; |
| if (p->count) { |
| ctrls_size = sizeof(struct v4l2_ext_control) * p->count; |
| /* Note: v4l2_ext_controls fits in sbuf[] so mbuf is still NULL. */ |
| mbuf = kmalloc(ctrls_size, GFP_KERNEL); |
| err = -ENOMEM; |
| if (NULL == mbuf) |
| goto out_ext_ctrl; |
| err = -EFAULT; |
| if (copy_from_user(mbuf, user_ptr, ctrls_size)) |
| goto out_ext_ctrl; |
| p->controls = mbuf; |
| } |
| } |
| |
| /* call driver */ |
| err = func(inode, file, cmd, parg); |
| if (err == -ENOIOCTLCMD) |
| err = -EINVAL; |
| if (is_ext_ctrl) { |
| struct v4l2_ext_controls *p = parg; |
| |
| p->controls = (void *)user_ptr; |
| if (p->count && err == 0 && copy_to_user(user_ptr, mbuf, ctrls_size)) |
| err = -EFAULT; |
| goto out_ext_ctrl; |
| } |
| if (err < 0) |
| goto out; |
| |
| out_ext_ctrl: |
| /* Copy results into user buffer */ |
| switch (_IOC_DIR(cmd)) |
| { |
| case _IOC_READ: |
| case (_IOC_WRITE | _IOC_READ): |
| if (copy_to_user((void __user *)arg, parg, _IOC_SIZE(cmd))) |
| err = -EFAULT; |
| break; |
| } |
| |
| out: |
| kfree(mbuf); |
| return err; |
| } |
| |
| /* |
| * open/release helper functions -- handle exclusive opens |
| * Should be removed soon |
| */ |
| int video_exclusive_open(struct inode *inode, struct file *file) |
| { |
| struct video_device *vfl = video_devdata(file); |
| int retval = 0; |
| |
| mutex_lock(&vfl->lock); |
| if (vfl->users) { |
| retval = -EBUSY; |
| } else { |
| vfl->users++; |
| } |
| mutex_unlock(&vfl->lock); |
| return retval; |
| } |
| |
| int video_exclusive_release(struct inode *inode, struct file *file) |
| { |
| struct video_device *vfl = video_devdata(file); |
| |
| vfl->users--; |
| return 0; |
| } |
| |
| static char *v4l2_memory_names[] = { |
| [V4L2_MEMORY_MMAP] = "mmap", |
| [V4L2_MEMORY_USERPTR] = "userptr", |
| [V4L2_MEMORY_OVERLAY] = "overlay", |
| }; |
| |
| |
| /* FIXME: Those stuff are replicated also on v4l2-common.c */ |
| static char *v4l2_type_names_FIXME[] = { |
| [V4L2_BUF_TYPE_VIDEO_CAPTURE] = "video-cap", |
| [V4L2_BUF_TYPE_VIDEO_OVERLAY] = "video-over", |
| [V4L2_BUF_TYPE_VIDEO_OUTPUT] = "video-out", |
| [V4L2_BUF_TYPE_VBI_CAPTURE] = "vbi-cap", |
| [V4L2_BUF_TYPE_VBI_OUTPUT] = "vbi-out", |
| [V4L2_BUF_TYPE_SLICED_VBI_OUTPUT] = "sliced-vbi-out", |
| [V4L2_BUF_TYPE_SLICED_VBI_CAPTURE] = "sliced-vbi-capture", |
| [V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY] = "video-out-over", |
| [V4L2_BUF_TYPE_PRIVATE] = "private", |
| }; |
| |
| static char *v4l2_field_names_FIXME[] = { |
| [V4L2_FIELD_ANY] = "any", |
| [V4L2_FIELD_NONE] = "none", |
| [V4L2_FIELD_TOP] = "top", |
| [V4L2_FIELD_BOTTOM] = "bottom", |
| [V4L2_FIELD_INTERLACED] = "interlaced", |
| [V4L2_FIELD_SEQ_TB] = "seq-tb", |
| [V4L2_FIELD_SEQ_BT] = "seq-bt", |
| [V4L2_FIELD_ALTERNATE] = "alternate", |
| [V4L2_FIELD_INTERLACED_TB] = "interlaced-tb", |
| [V4L2_FIELD_INTERLACED_BT] = "interlaced-bt", |
| }; |
| |
| #define prt_names(a,arr) (((a)>=0)&&((a)<ARRAY_SIZE(arr)))?arr[a]:"unknown" |
| |
| static void dbgbuf(unsigned int cmd, struct video_device *vfd, |
| struct v4l2_buffer *p) |
| { |
| struct v4l2_timecode *tc=&p->timecode; |
| |
| dbgarg (cmd, "%02ld:%02d:%02d.%08ld index=%d, type=%s, " |
| "bytesused=%d, flags=0x%08d, " |
| "field=%0d, sequence=%d, memory=%s, offset/userptr=0x%08lx, length=%d\n", |
| (p->timestamp.tv_sec/3600), |
| (int)(p->timestamp.tv_sec/60)%60, |
| (int)(p->timestamp.tv_sec%60), |
| p->timestamp.tv_usec, |
| p->index, |
| prt_names(p->type,v4l2_type_names_FIXME), |
| p->bytesused,p->flags, |
| p->field,p->sequence, |
| prt_names(p->memory,v4l2_memory_names), |
| p->m.userptr, p->length); |
| dbgarg2 ("timecode= %02d:%02d:%02d type=%d, " |
| "flags=0x%08d, frames=%d, userbits=0x%08x\n", |
| tc->hours,tc->minutes,tc->seconds, |
| tc->type, tc->flags, tc->frames, *(__u32 *) tc->userbits); |
| } |
| |
| static inline void dbgrect(struct video_device *vfd, char *s, |
| struct v4l2_rect *r) |
| { |
| dbgarg2 ("%sRect start at %dx%d, size= %dx%d\n", s, r->left, r->top, |
| r->width, r->height); |
| }; |
| |
| static inline void v4l_print_pix_fmt (struct video_device *vfd, |
| struct v4l2_pix_format *fmt) |
| { |
| dbgarg2 ("width=%d, height=%d, format=%c%c%c%c, field=%s, " |
| "bytesperline=%d sizeimage=%d, colorspace=%d\n", |
| fmt->width,fmt->height, |
| (fmt->pixelformat & 0xff), |
| (fmt->pixelformat >> 8) & 0xff, |
| (fmt->pixelformat >> 16) & 0xff, |
| (fmt->pixelformat >> 24) & 0xff, |
| prt_names(fmt->field,v4l2_field_names_FIXME), |
| fmt->bytesperline,fmt->sizeimage,fmt->colorspace); |
| }; |
| |
| |
| static int check_fmt (struct video_device *vfd, enum v4l2_buf_type type) |
| { |
| switch (type) { |
| case V4L2_BUF_TYPE_VIDEO_CAPTURE: |
| if (vfd->vidioc_try_fmt_cap) |
| return (0); |
| break; |
| case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
| if (vfd->vidioc_try_fmt_overlay) |
| return (0); |
| break; |
| case V4L2_BUF_TYPE_VBI_CAPTURE: |
| if (vfd->vidioc_try_fmt_vbi) |
| return (0); |
| break; |
| case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: |
| if (vfd->vidioc_try_fmt_vbi_output) |
| return (0); |
| break; |
| case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: |
| if (vfd->vidioc_try_fmt_vbi_capture) |
| return (0); |
| break; |
| case V4L2_BUF_TYPE_VIDEO_OUTPUT: |
| if (vfd->vidioc_try_fmt_video_output) |
| return (0); |
| break; |
| case V4L2_BUF_TYPE_VBI_OUTPUT: |
| if (vfd->vidioc_try_fmt_vbi_output) |
| return (0); |
| break; |
| case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: |
| if (vfd->vidioc_try_fmt_output_overlay) |
| return (0); |
| break; |
| case V4L2_BUF_TYPE_PRIVATE: |
| if (vfd->vidioc_try_fmt_type_private) |
| return (0); |
| break; |
| } |
| return (-EINVAL); |
| } |
| |
| static int __video_do_ioctl(struct inode *inode, struct file *file, |
| unsigned int cmd, void *arg) |
| { |
| struct video_device *vfd = video_devdata(file); |
| void *fh = file->private_data; |
| int ret = -EINVAL; |
| |
| if ( (vfd->debug & V4L2_DEBUG_IOCTL) && |
| !(vfd->debug | V4L2_DEBUG_IOCTL_ARG)) { |
| v4l_print_ioctl(vfd->name, cmd); |
| } |
| |
| if (_IOC_TYPE(cmd)=='v') |
| return v4l_compat_translate_ioctl(inode,file,cmd,arg, |
| __video_do_ioctl); |
| |
| switch(cmd) { |
| /* --- capabilities ------------------------------------------ */ |
| case VIDIOC_QUERYCAP: |
| { |
| struct v4l2_capability *cap = (struct v4l2_capability*)arg; |
| memset(cap, 0, sizeof(*cap)); |
| |
| if (!vfd->vidioc_querycap) |
| break; |
| |
| ret=vfd->vidioc_querycap(file, fh, cap); |
| if (!ret) |
| dbgarg (cmd, "driver=%s, card=%s, bus=%s, " |
| "version=0x%08x, " |
| "capabilities=0x%08x\n", |
| cap->driver,cap->card,cap->bus_info, |
| cap->version, |
| cap->capabilities); |
| break; |
| } |
| |
| /* --- priority ------------------------------------------ */ |
| case VIDIOC_G_PRIORITY: |
| { |
| enum v4l2_priority *p=arg; |
| |
| if (!vfd->vidioc_g_priority) |
| break; |
| ret=vfd->vidioc_g_priority(file, fh, p); |
| if (!ret) |
| dbgarg(cmd, "priority is %d\n", *p); |
| break; |
| } |
| case VIDIOC_S_PRIORITY: |
| { |
| enum v4l2_priority *p=arg; |
| |
| if (!vfd->vidioc_s_priority) |
| break; |
| dbgarg(cmd, "setting priority to %d\n", *p); |
| ret=vfd->vidioc_s_priority(file, fh, *p); |
| break; |
| } |
| |
| /* --- capture ioctls ---------------------------------------- */ |
| case VIDIOC_ENUM_FMT: |
| { |
| struct v4l2_fmtdesc *f = arg; |
| enum v4l2_buf_type type; |
| unsigned int index; |
| |
| index = f->index; |
| type = f->type; |
| memset(f,0,sizeof(*f)); |
| f->index = index; |
| f->type = type; |
| |
| switch (type) { |
| case V4L2_BUF_TYPE_VIDEO_CAPTURE: |
| if (vfd->vidioc_enum_fmt_cap) |
| ret=vfd->vidioc_enum_fmt_cap(file, fh, f); |
| break; |
| case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
| if (vfd->vidioc_enum_fmt_overlay) |
| ret=vfd->vidioc_enum_fmt_overlay(file, fh, f); |
| break; |
| case V4L2_BUF_TYPE_VBI_CAPTURE: |
| if (vfd->vidioc_enum_fmt_vbi) |
| ret=vfd->vidioc_enum_fmt_vbi(file, fh, f); |
| break; |
| case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: |
| if (vfd->vidioc_enum_fmt_vbi_output) |
| ret=vfd->vidioc_enum_fmt_vbi_output(file, |
| fh, f); |
| break; |
| case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: |
| if (vfd->vidioc_enum_fmt_vbi_capture) |
| ret=vfd->vidioc_enum_fmt_vbi_capture(file, |
| fh, f); |
| break; |
| case V4L2_BUF_TYPE_VIDEO_OUTPUT: |
| if (vfd->vidioc_enum_fmt_video_output) |
| ret=vfd->vidioc_enum_fmt_video_output(file, |
| fh, f); |
| break; |
| case V4L2_BUF_TYPE_VBI_OUTPUT: |
| if (vfd->vidioc_enum_fmt_vbi_output) |
| ret=vfd->vidioc_enum_fmt_vbi_output(file, |
| fh, f); |
| break; |
| case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: |
| if (vfd->vidioc_enum_fmt_output_overlay) |
| ret=vfd->vidioc_enum_fmt_output_overlay(file, fh, f); |
| break; |
| case V4L2_BUF_TYPE_PRIVATE: |
| if (vfd->vidioc_enum_fmt_type_private) |
| ret=vfd->vidioc_enum_fmt_type_private(file, |
| fh, f); |
| break; |
| } |
| if (!ret) |
| dbgarg (cmd, "index=%d, type=%d, flags=%d, " |
| "pixelformat=%c%c%c%c, description='%s'\n", |
| f->index, f->type, f->flags, |
| (f->pixelformat & 0xff), |
| (f->pixelformat >> 8) & 0xff, |
| (f->pixelformat >> 16) & 0xff, |
| (f->pixelformat >> 24) & 0xff, |
| f->description); |
| break; |
| } |
| case VIDIOC_G_FMT: |
| { |
| struct v4l2_format *f = (struct v4l2_format *)arg; |
| enum v4l2_buf_type type=f->type; |
| |
| memset(&f->fmt.pix,0,sizeof(f->fmt.pix)); |
| f->type=type; |
| |
| /* FIXME: Should be one dump per type */ |
| dbgarg (cmd, "type=%s\n", prt_names(type, |
| v4l2_type_names_FIXME)); |
| |
| switch (type) { |
| case V4L2_BUF_TYPE_VIDEO_CAPTURE: |
| if (vfd->vidioc_g_fmt_cap) |
| ret=vfd->vidioc_g_fmt_cap(file, fh, f); |
| if (!ret) |
| v4l_print_pix_fmt(vfd,&f->fmt.pix); |
| break; |
| case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
| if (vfd->vidioc_g_fmt_overlay) |
| ret=vfd->vidioc_g_fmt_overlay(file, fh, f); |
| break; |
| case V4L2_BUF_TYPE_VBI_CAPTURE: |
| if (vfd->vidioc_g_fmt_vbi) |
| ret=vfd->vidioc_g_fmt_vbi(file, fh, f); |
| break; |
| case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: |
| if (vfd->vidioc_g_fmt_vbi_output) |
| ret=vfd->vidioc_g_fmt_vbi_output(file, fh, f); |
| break; |
| case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: |
| if (vfd->vidioc_g_fmt_vbi_capture) |
| ret=vfd->vidioc_g_fmt_vbi_capture(file, fh, f); |
| break; |
| case V4L2_BUF_TYPE_VIDEO_OUTPUT: |
| if (vfd->vidioc_g_fmt_video_output) |
| ret=vfd->vidioc_g_fmt_video_output(file, |
| fh, f); |
| break; |
| case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: |
| if (vfd->vidioc_g_fmt_output_overlay) |
| ret=vfd->vidioc_g_fmt_output_overlay(file, fh, f); |
| break; |
| case V4L2_BUF_TYPE_VBI_OUTPUT: |
| if (vfd->vidioc_g_fmt_vbi_output) |
| ret=vfd->vidioc_g_fmt_vbi_output(file, fh, f); |
| break; |
| case V4L2_BUF_TYPE_PRIVATE: |
| if (vfd->vidioc_g_fmt_type_private) |
| ret=vfd->vidioc_g_fmt_type_private(file, |
| fh, f); |
| break; |
| } |
| |
| break; |
| } |
| case VIDIOC_S_FMT: |
| { |
| struct v4l2_format *f = (struct v4l2_format *)arg; |
| |
| /* FIXME: Should be one dump per type */ |
| dbgarg (cmd, "type=%s\n", prt_names(f->type, |
| v4l2_type_names_FIXME)); |
| |
| switch (f->type) { |
| case V4L2_BUF_TYPE_VIDEO_CAPTURE: |
| v4l_print_pix_fmt(vfd,&f->fmt.pix); |
| if (vfd->vidioc_s_fmt_cap) |
| ret=vfd->vidioc_s_fmt_cap(file, fh, f); |
| break; |
| case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
| if (vfd->vidioc_s_fmt_overlay) |
| ret=vfd->vidioc_s_fmt_overlay(file, fh, f); |
| break; |
| case V4L2_BUF_TYPE_VBI_CAPTURE: |
| if (vfd->vidioc_s_fmt_vbi) |
| ret=vfd->vidioc_s_fmt_vbi(file, fh, f); |
| break; |
| case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: |
| if (vfd->vidioc_s_fmt_vbi_output) |
| ret=vfd->vidioc_s_fmt_vbi_output(file, fh, f); |
| break; |
| case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: |
| if (vfd->vidioc_s_fmt_vbi_capture) |
| ret=vfd->vidioc_s_fmt_vbi_capture(file, fh, f); |
| break; |
| case V4L2_BUF_TYPE_VIDEO_OUTPUT: |
| if (vfd->vidioc_s_fmt_video_output) |
| ret=vfd->vidioc_s_fmt_video_output(file, |
| fh, f); |
| break; |
| case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: |
| if (vfd->vidioc_s_fmt_output_overlay) |
| ret=vfd->vidioc_s_fmt_output_overlay(file, fh, f); |
| break; |
| case V4L2_BUF_TYPE_VBI_OUTPUT: |
| if (vfd->vidioc_s_fmt_vbi_output) |
| ret=vfd->vidioc_s_fmt_vbi_output(file, |
| fh, f); |
| break; |
| case V4L2_BUF_TYPE_PRIVATE: |
| if (vfd->vidioc_s_fmt_type_private) |
| ret=vfd->vidioc_s_fmt_type_private(file, |
| fh, f); |
| break; |
| } |
| break; |
| } |
| case VIDIOC_TRY_FMT: |
| { |
| struct v4l2_format *f = (struct v4l2_format *)arg; |
| |
| /* FIXME: Should be one dump per type */ |
| dbgarg (cmd, "type=%s\n", prt_names(f->type, |
| v4l2_type_names_FIXME)); |
| switch (f->type) { |
| case V4L2_BUF_TYPE_VIDEO_CAPTURE: |
| if (vfd->vidioc_try_fmt_cap) |
| ret=vfd->vidioc_try_fmt_cap(file, fh, f); |
| if (!ret) |
| v4l_print_pix_fmt(vfd,&f->fmt.pix); |
| break; |
| case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
| if (vfd->vidioc_try_fmt_overlay) |
| ret=vfd->vidioc_try_fmt_overlay(file, fh, f); |
| break; |
| case V4L2_BUF_TYPE_VBI_CAPTURE: |
| if (vfd->vidioc_try_fmt_vbi) |
| ret=vfd->vidioc_try_fmt_vbi(file, fh, f); |
| break; |
| case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: |
| if (vfd->vidioc_try_fmt_vbi_output) |
| ret=vfd->vidioc_try_fmt_vbi_output(file, |
| fh, f); |
| break; |
| case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: |
| if (vfd->vidioc_try_fmt_vbi_capture) |
| ret=vfd->vidioc_try_fmt_vbi_capture(file, |
| fh, f); |
| break; |
| case V4L2_BUF_TYPE_VIDEO_OUTPUT: |
| if (vfd->vidioc_try_fmt_video_output) |
| ret=vfd->vidioc_try_fmt_video_output(file, |
| fh, f); |
| break; |
| case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: |
| if (vfd->vidioc_try_fmt_output_overlay) |
| ret=vfd->vidioc_try_fmt_output_overlay(file, fh, f); |
| break; |
| case V4L2_BUF_TYPE_VBI_OUTPUT: |
| if (vfd->vidioc_try_fmt_vbi_output) |
| ret=vfd->vidioc_try_fmt_vbi_output(file, |
| fh, f); |
| break; |
| case V4L2_BUF_TYPE_PRIVATE: |
| if (vfd->vidioc_try_fmt_type_private) |
| ret=vfd->vidioc_try_fmt_type_private(file, |
| fh, f); |
| break; |
| } |
| |
| break; |
| } |
| /* FIXME: Those buf reqs could be handled here, |
| with some changes on videobuf to allow its header to be included at |
| videodev2.h or being merged at videodev2. |
| */ |
| case VIDIOC_REQBUFS: |
| { |
| struct v4l2_requestbuffers *p=arg; |
| |
| if (!vfd->vidioc_reqbufs) |
| break; |
| ret = check_fmt (vfd, p->type); |
| if (ret) |
| break; |
| |
| ret=vfd->vidioc_reqbufs(file, fh, p); |
| dbgarg (cmd, "count=%d, type=%s, memory=%s\n", |
| p->count, |
| prt_names(p->type,v4l2_type_names_FIXME), |
| prt_names(p->memory,v4l2_memory_names)); |
| break; |
| } |
| case VIDIOC_QUERYBUF: |
| { |
| struct v4l2_buffer *p=arg; |
| |
| if (!vfd->vidioc_querybuf) |
| break; |
| ret = check_fmt (vfd, p->type); |
| if (ret) |
| break; |
| |
| ret=vfd->vidioc_querybuf(file, fh, p); |
| if (!ret) |
| dbgbuf(cmd,vfd,p); |
| break; |
| } |
| case VIDIOC_QBUF: |
| { |
| struct v4l2_buffer *p=arg; |
| |
| if (!vfd->vidioc_qbuf) |
| break; |
| ret = check_fmt (vfd, p->type); |
| if (ret) |
| break; |
| |
| ret=vfd->vidioc_qbuf(file, fh, p); |
| if (!ret) |
| dbgbuf(cmd,vfd,p); |
| break; |
| } |
| case VIDIOC_DQBUF: |
| { |
| struct v4l2_buffer *p=arg; |
| if (!vfd->vidioc_dqbuf) |
| break; |
| ret = check_fmt (vfd, p->type); |
| if (ret) |
| break; |
| |
| ret=vfd->vidioc_dqbuf(file, fh, p); |
| if (!ret) |
| dbgbuf(cmd,vfd,p); |
| break; |
| } |
| case VIDIOC_OVERLAY: |
| { |
| int *i = arg; |
| |
| if (!vfd->vidioc_overlay) |
| break; |
| dbgarg (cmd, "value=%d\n",*i); |
| ret=vfd->vidioc_overlay(file, fh, *i); |
| break; |
| } |
| #ifdef CONFIG_VIDEO_V4L1_COMPAT |
| /* --- streaming capture ------------------------------------- */ |
| case VIDIOCGMBUF: |
| { |
| struct video_mbuf *p=arg; |
| |
| memset(p,0,sizeof(p)); |
| |
| if (!vfd->vidiocgmbuf) |
| break; |
| ret=vfd->vidiocgmbuf(file, fh, p); |
| if (!ret) |
| dbgarg (cmd, "size=%d, frames=%d, offsets=0x%08lx\n", |
| p->size, p->frames, |
| (unsigned long)p->offsets); |
| break; |
| } |
| #endif |
| case VIDIOC_G_FBUF: |
| { |
| struct v4l2_framebuffer *p=arg; |
| if (!vfd->vidioc_g_fbuf) |
| break; |
| ret=vfd->vidioc_g_fbuf(file, fh, arg); |
| if (!ret) { |
| dbgarg (cmd, "capability=%d, flags=%d, base=0x%08lx\n", |
| p->capability,p->flags, |
| (unsigned long)p->base); |
| v4l_print_pix_fmt (vfd, &p->fmt); |
| } |
| break; |
| } |
| case VIDIOC_S_FBUF: |
| { |
| struct v4l2_framebuffer *p=arg; |
| if (!vfd->vidioc_s_fbuf) |
| break; |
| |
| dbgarg (cmd, "capability=%d, flags=%d, base=0x%08lx\n", |
| p->capability,p->flags,(unsigned long)p->base); |
| v4l_print_pix_fmt (vfd, &p->fmt); |
| ret=vfd->vidioc_s_fbuf(file, fh, arg); |
| |
| break; |
| } |
| case VIDIOC_STREAMON: |
| { |
| enum v4l2_buf_type i = *(int *)arg; |
| if (!vfd->vidioc_streamon) |
| break; |
| dbgarg (cmd, "type=%s\n", prt_names(i,v4l2_type_names_FIXME)); |
| ret=vfd->vidioc_streamon(file, fh,i); |
| break; |
| } |
| case VIDIOC_STREAMOFF: |
| { |
| enum v4l2_buf_type i = *(int *)arg; |
| |
| if (!vfd->vidioc_streamoff) |
| break; |
| dbgarg (cmd, "type=%s\n", prt_names(i,v4l2_type_names_FIXME)); |
| ret=vfd->vidioc_streamoff(file, fh, i); |
| break; |
| } |
| /* ---------- tv norms ---------- */ |
| case VIDIOC_ENUMSTD: |
| { |
| struct v4l2_standard *p = arg; |
| v4l2_std_id id = vfd->tvnorms,curr_id=0; |
| unsigned int index = p->index,i; |
| |
| if (index<0) { |
| ret=-EINVAL; |
| break; |
| } |
| |
| /* Return norm array on a canonical way */ |
| for (i=0;i<= index && id; i++) { |
| if ( (id & V4L2_STD_PAL) == V4L2_STD_PAL) { |
| curr_id = V4L2_STD_PAL; |
| } else if ( (id & V4L2_STD_PAL_BG) == V4L2_STD_PAL_BG) { |
| curr_id = V4L2_STD_PAL_BG; |
| } else if ( (id & V4L2_STD_PAL_DK) == V4L2_STD_PAL_DK) { |
| curr_id = V4L2_STD_PAL_DK; |
| } else if ( (id & V4L2_STD_PAL_B) == V4L2_STD_PAL_B) { |
| curr_id = V4L2_STD_PAL_B; |
| } else if ( (id & V4L2_STD_PAL_B1) == V4L2_STD_PAL_B1) { |
| curr_id = V4L2_STD_PAL_B1; |
| } else if ( (id & V4L2_STD_PAL_G) == V4L2_STD_PAL_G) { |
| curr_id = V4L2_STD_PAL_G; |
| } else if ( (id & V4L2_STD_PAL_H) == V4L2_STD_PAL_H) { |
| curr_id = V4L2_STD_PAL_H; |
| } else if ( (id & V4L2_STD_PAL_I) == V4L2_STD_PAL_I) { |
| curr_id = V4L2_STD_PAL_I; |
| } else if ( (id & V4L2_STD_PAL_D) == V4L2_STD_PAL_D) { |
| curr_id = V4L2_STD_PAL_D; |
| } else if ( (id & V4L2_STD_PAL_D1) == V4L2_STD_PAL_D1) { |
| curr_id = V4L2_STD_PAL_D1; |
| } else if ( (id & V4L2_STD_PAL_K) == V4L2_STD_PAL_K) { |
| curr_id = V4L2_STD_PAL_K; |
| } else if ( (id & V4L2_STD_PAL_M) == V4L2_STD_PAL_M) { |
| curr_id = V4L2_STD_PAL_M; |
| } else if ( (id & V4L2_STD_PAL_N) == V4L2_STD_PAL_N) { |
| curr_id = V4L2_STD_PAL_N; |
| } else if ( (id & V4L2_STD_PAL_Nc) == V4L2_STD_PAL_Nc) { |
| curr_id = V4L2_STD_PAL_Nc; |
| } else if ( (id & V4L2_STD_PAL_60) == V4L2_STD_PAL_60) { |
| curr_id = V4L2_STD_PAL_60; |
| } else if ( (id & V4L2_STD_NTSC) == V4L2_STD_NTSC) { |
| curr_id = V4L2_STD_NTSC; |
| } else if ( (id & V4L2_STD_NTSC_M) == V4L2_STD_NTSC_M) { |
| curr_id = V4L2_STD_NTSC_M; |
| } else if ( (id & V4L2_STD_NTSC_M_JP) == V4L2_STD_NTSC_M_JP) { |
| curr_id = V4L2_STD_NTSC_M_JP; |
| } else if ( (id & V4L2_STD_NTSC_443) == V4L2_STD_NTSC_443) { |
| curr_id = V4L2_STD_NTSC_443; |
| } else if ( (id & V4L2_STD_NTSC_M_KR) == V4L2_STD_NTSC_M_KR) { |
| curr_id = V4L2_STD_NTSC_M_KR; |
| } else if ( (id & V4L2_STD_SECAM) == V4L2_STD_SECAM) { |
| curr_id = V4L2_STD_SECAM; |
| } else if ( (id & V4L2_STD_SECAM_DK) == V4L2_STD_SECAM_DK) { |
| curr_id = V4L2_STD_SECAM_DK; |
| } else if ( (id & V4L2_STD_SECAM_B) == V4L2_STD_SECAM_B) { |
| curr_id = V4L2_STD_SECAM_B; |
| } else if ( (id & V4L2_STD_SECAM_D) == V4L2_STD_SECAM_D) { |
| curr_id = V4L2_STD_SECAM_D; |
| } else if ( (id & V4L2_STD_SECAM_G) == V4L2_STD_SECAM_G) { |
| curr_id = V4L2_STD_SECAM_G; |
| } else if ( (id & V4L2_STD_SECAM_H) == V4L2_STD_SECAM_H) { |
| curr_id = V4L2_STD_SECAM_H; |
| } else if ( (id & V4L2_STD_SECAM_K) == V4L2_STD_SECAM_K) { |
| curr_id = V4L2_STD_SECAM_K; |
| } else if ( (id & V4L2_STD_SECAM_K1) == V4L2_STD_SECAM_K1) { |
| curr_id = V4L2_STD_SECAM_K1; |
| } else if ( (id & V4L2_STD_SECAM_L) == V4L2_STD_SECAM_L) { |
| curr_id = V4L2_STD_SECAM_L; |
| } else if ( (id & V4L2_STD_SECAM_LC) == V4L2_STD_SECAM_LC) { |
| curr_id = V4L2_STD_SECAM_LC; |
| } else { |
| break; |
| } |
| id &= ~curr_id; |
| } |
| if (i<=index) |
| return -EINVAL; |
| |
| v4l2_video_std_construct(p, curr_id,v4l2_norm_to_name(curr_id)); |
| p->index = index; |
| |
| dbgarg (cmd, "index=%d, id=%Ld, name=%s, fps=%d/%d, " |
| "framelines=%d\n", p->index, |
| (unsigned long long)p->id, p->name, |
| p->frameperiod.numerator, |
| p->frameperiod.denominator, |
| p->framelines); |
| |
| ret=0; |
| break; |
| } |
| case VIDIOC_G_STD: |
| { |
| v4l2_std_id *id = arg; |
| |
| *id = vfd->current_norm; |
| |
| dbgarg (cmd, "value=%Lu\n", (long long unsigned) *id); |
| |
| ret=0; |
| break; |
| } |
| case VIDIOC_S_STD: |
| { |
| v4l2_std_id *id = arg,norm; |
| |
| dbgarg (cmd, "value=%Lu\n", (long long unsigned) *id); |
| |
| norm = (*id) & vfd->tvnorms; |
| if ( vfd->tvnorms && !norm) /* Check if std is supported */ |
| break; |
| |
| /* Calls the specific handler */ |
| if (vfd->vidioc_s_std) |
| ret=vfd->vidioc_s_std(file, fh, &norm); |
| else |
| ret=-EINVAL; |
| |
| /* Updates standard information */ |
| if (ret>=0) |
| vfd->current_norm=norm; |
| |
| break; |
| } |
| case VIDIOC_QUERYSTD: |
| { |
| v4l2_std_id *p=arg; |
| |
| if (!vfd->vidioc_querystd) |
| break; |
| ret=vfd->vidioc_querystd(file, fh, arg); |
| if (!ret) |
| dbgarg (cmd, "detected std=%Lu\n", |
| (unsigned long long)*p); |
| break; |
| } |
| /* ------ input switching ---------- */ |
| /* FIXME: Inputs can be handled inside videodev2 */ |
| case VIDIOC_ENUMINPUT: |
| { |
| struct v4l2_input *p=arg; |
| int i=p->index; |
| |
| if (!vfd->vidioc_enum_input) |
| break; |
| memset(p, 0, sizeof(*p)); |
| p->index=i; |
| |
| ret=vfd->vidioc_enum_input(file, fh, p); |
| if (!ret) |
| dbgarg (cmd, "index=%d, name=%s, type=%d, " |
| "audioset=%d, " |
| "tuner=%d, std=%Ld, status=%d\n", |
| p->index,p->name,p->type,p->audioset, |
| p->tuner, |
| (unsigned long long)p->std, |
| p->status); |
| break; |
| } |
| case VIDIOC_G_INPUT: |
| { |
| unsigned int *i = arg; |
| |
| if (!vfd->vidioc_g_input) |
| break; |
| ret=vfd->vidioc_g_input(file, fh, i); |
| if (!ret) |
| dbgarg (cmd, "value=%d\n",*i); |
| break; |
| } |
| case VIDIOC_S_INPUT: |
| { |
| unsigned int *i = arg; |
| |
| if (!vfd->vidioc_s_input) |
| break; |
| dbgarg (cmd, "value=%d\n",*i); |
| ret=vfd->vidioc_s_input(file, fh, *i); |
| break; |
| } |
| |
| /* ------ output switching ---------- */ |
| case VIDIOC_G_OUTPUT: |
| { |
| unsigned int *i = arg; |
| |
| if (!vfd->vidioc_g_output) |
| break; |
| ret=vfd->vidioc_g_output(file, fh, i); |
| if (!ret) |
| dbgarg (cmd, "value=%d\n",*i); |
| break; |
| } |
| case VIDIOC_S_OUTPUT: |
| { |
| unsigned int *i = arg; |
| |
| if (!vfd->vidioc_s_output) |
| break; |
| dbgarg (cmd, "value=%d\n",*i); |
| ret=vfd->vidioc_s_output(file, fh, *i); |
| break; |
| } |
| |
| /* --- controls ---------------------------------------------- */ |
| case VIDIOC_QUERYCTRL: |
| { |
| struct v4l2_queryctrl *p=arg; |
| |
| if (!vfd->vidioc_queryctrl) |
| break; |
| ret=vfd->vidioc_queryctrl(file, fh, p); |
| |
| if (!ret) |
| dbgarg (cmd, "id=%d, type=%d, name=%s, " |
| "min/max=%d/%d," |
| " step=%d, default=%d, flags=0x%08x\n", |
| p->id,p->type,p->name,p->minimum, |
| p->maximum,p->step,p->default_value, |
| p->flags); |
| break; |
| } |
| case VIDIOC_G_CTRL: |
| { |
| struct v4l2_control *p = arg; |
| |
| if (!vfd->vidioc_g_ctrl) |
| break; |
| dbgarg(cmd, "Enum for index=%d\n", p->id); |
| |
| ret=vfd->vidioc_g_ctrl(file, fh, p); |
| if (!ret) |
| dbgarg2 ( "id=%d, value=%d\n", p->id, p->value); |
| break; |
| } |
| case VIDIOC_S_CTRL: |
| { |
| struct v4l2_control *p = arg; |
| |
| if (!vfd->vidioc_s_ctrl) |
| break; |
| dbgarg (cmd, "id=%d, value=%d\n", p->id, p->value); |
| |
| ret=vfd->vidioc_s_ctrl(file, fh, p); |
| break; |
| } |
| case VIDIOC_G_EXT_CTRLS: |
| { |
| struct v4l2_ext_controls *p = arg; |
| |
| if (vfd->vidioc_g_ext_ctrls) { |
| dbgarg(cmd, "count=%d\n", p->count); |
| |
| ret=vfd->vidioc_g_ext_ctrls(file, fh, p); |
| } |
| break; |
| } |
| case VIDIOC_S_EXT_CTRLS: |
| { |
| struct v4l2_ext_controls *p = arg; |
| |
| if (vfd->vidioc_s_ext_ctrls) { |
| dbgarg(cmd, "count=%d\n", p->count); |
| |
| ret=vfd->vidioc_s_ext_ctrls(file, fh, p); |
| } |
| break; |
| } |
| case VIDIOC_TRY_EXT_CTRLS: |
| { |
| struct v4l2_ext_controls *p = arg; |
| |
| if (vfd->vidioc_try_ext_ctrls) { |
| dbgarg(cmd, "count=%d\n", p->count); |
| |
| ret=vfd->vidioc_try_ext_ctrls(file, fh, p); |
| } |
| break; |
| } |
| case VIDIOC_QUERYMENU: |
| { |
| struct v4l2_querymenu *p=arg; |
| if (!vfd->vidioc_querymenu) |
| break; |
| ret=vfd->vidioc_querymenu(file, fh, p); |
| if (!ret) |
| dbgarg (cmd, "id=%d, index=%d, name=%s\n", |
| p->id,p->index,p->name); |
| break; |
| } |
| /* --- audio ---------------------------------------------- */ |
| case VIDIOC_ENUMAUDIO: |
| { |
| struct v4l2_audio *p=arg; |
| |
| if (!vfd->vidioc_enumaudio) |
| break; |
| dbgarg(cmd, "Enum for index=%d\n", p->index); |
| ret=vfd->vidioc_enumaudio(file, fh, p); |
| if (!ret) |
| dbgarg2("index=%d, name=%s, capability=%d, " |
| "mode=%d\n",p->index,p->name, |
| p->capability, p->mode); |
| break; |
| } |
| case VIDIOC_G_AUDIO: |
| { |
| struct v4l2_audio *p=arg; |
| __u32 index=p->index; |
| |
| if (!vfd->vidioc_g_audio) |
| break; |
| |
| memset(p,0,sizeof(*p)); |
| p->index=index; |
| dbgarg(cmd, "Get for index=%d\n", p->index); |
| ret=vfd->vidioc_g_audio(file, fh, p); |
| if (!ret) |
| dbgarg2("index=%d, name=%s, capability=%d, " |
| "mode=%d\n",p->index, |
| p->name,p->capability, p->mode); |
| break; |
| } |
| case VIDIOC_S_AUDIO: |
| { |
| struct v4l2_audio *p=arg; |
| |
| if (!vfd->vidioc_s_audio) |
| break; |
| dbgarg(cmd, "index=%d, name=%s, capability=%d, " |
| "mode=%d\n", p->index, p->name, |
| p->capability, p->mode); |
| ret=vfd->vidioc_s_audio(file, fh, p); |
| break; |
| } |
| case VIDIOC_ENUMAUDOUT: |
| { |
| struct v4l2_audioout *p=arg; |
| |
| if (!vfd->vidioc_enumaudout) |
| break; |
| dbgarg(cmd, "Enum for index=%d\n", p->index); |
| ret=vfd->vidioc_enumaudout(file, fh, p); |
| if (!ret) |
| dbgarg2("index=%d, name=%s, capability=%d, " |
| "mode=%d\n", p->index, p->name, |
| p->capability,p->mode); |
| break; |
| } |
| case VIDIOC_G_AUDOUT: |
| { |
| struct v4l2_audioout *p=arg; |
| |
| if (!vfd->vidioc_g_audout) |
| break; |
| dbgarg(cmd, "Enum for index=%d\n", p->index); |
| ret=vfd->vidioc_g_audout(file, fh, p); |
| if (!ret) |
| dbgarg2("index=%d, name=%s, capability=%d, " |
| "mode=%d\n", p->index, p->name, |
| p->capability,p->mode); |
| break; |
| } |
| case VIDIOC_S_AUDOUT: |
| { |
| struct v4l2_audioout *p=arg; |
| |
| if (!vfd->vidioc_s_audout) |
| break; |
| dbgarg(cmd, "index=%d, name=%s, capability=%d, " |
| "mode=%d\n", p->index, p->name, |
| p->capability,p->mode); |
| |
| ret=vfd->vidioc_s_audout(file, fh, p); |
| break; |
| } |
| case VIDIOC_G_MODULATOR: |
| { |
| struct v4l2_modulator *p=arg; |
| if (!vfd->vidioc_g_modulator) |
| break; |
| ret=vfd->vidioc_g_modulator(file, fh, p); |
| if (!ret) |
| dbgarg(cmd, "index=%d, name=%s, " |
| "capability=%d, rangelow=%d," |
| " rangehigh=%d, txsubchans=%d\n", |
| p->index, p->name,p->capability, |
| p->rangelow, p->rangehigh, |
| p->txsubchans); |
| break; |
| } |
| case VIDIOC_S_MODULATOR: |
| { |
| struct v4l2_modulator *p=arg; |
| if (!vfd->vidioc_s_modulator) |
| break; |
| dbgarg(cmd, "index=%d, name=%s, capability=%d, " |
| "rangelow=%d, rangehigh=%d, txsubchans=%d\n", |
| p->index, p->name,p->capability,p->rangelow, |
| p->rangehigh,p->txsubchans); |
| ret=vfd->vidioc_s_modulator(file, fh, p); |
| break; |
| } |
| case VIDIOC_G_CROP: |
| { |
| struct v4l2_crop *p=arg; |
| if (!vfd->vidioc_g_crop) |
| break; |
| ret=vfd->vidioc_g_crop(file, fh, p); |
| if (!ret) { |
| dbgarg(cmd, "type=%d\n", p->type); |
| dbgrect(vfd, "", &p->c); |
| } |
| break; |
| } |
| case VIDIOC_S_CROP: |
| { |
| struct v4l2_crop *p=arg; |
| if (!vfd->vidioc_s_crop) |
| break; |
| dbgarg(cmd, "type=%d\n", p->type); |
| dbgrect(vfd, "", &p->c); |
| ret=vfd->vidioc_s_crop(file, fh, p); |
| break; |
| } |
| case VIDIOC_CROPCAP: |
| { |
| struct v4l2_cropcap *p=arg; |
| /*FIXME: Should also show v4l2_fract pixelaspect */ |
| if (!vfd->vidioc_cropcap) |
| break; |
| dbgarg(cmd, "type=%d\n", p->type); |
| dbgrect(vfd, "bounds ", &p->bounds); |
| dbgrect(vfd, "defrect ", &p->defrect); |
| ret=vfd->vidioc_cropcap(file, fh, p); |
| break; |
| } |
| case VIDIOC_G_MPEGCOMP: |
| { |
| struct v4l2_mpeg_compression *p=arg; |
| |
| /*FIXME: Several fields not shown */ |
| if (!vfd->vidioc_g_mpegcomp) |
| break; |
| ret=vfd->vidioc_g_mpegcomp(file, fh, p); |
| if (!ret) |
| dbgarg (cmd, "ts_pid_pmt=%d, ts_pid_audio=%d," |
| " ts_pid_video=%d, ts_pid_pcr=%d, " |
| "ps_size=%d, au_sample_rate=%d, " |
| "au_pesid=%c, vi_frame_rate=%d, " |
| "vi_frames_per_gop=%d, " |
| "vi_bframes_count=%d, vi_pesid=%c\n", |
| p->ts_pid_pmt,p->ts_pid_audio, |
| p->ts_pid_video,p->ts_pid_pcr, |
| p->ps_size, p->au_sample_rate, |
| p->au_pesid, p->vi_frame_rate, |
| p->vi_frames_per_gop, |
| p->vi_bframes_count, p->vi_pesid); |
| break; |
| } |
| case VIDIOC_S_MPEGCOMP: |
| { |
| struct v4l2_mpeg_compression *p=arg; |
| /*FIXME: Several fields not shown */ |
| if (!vfd->vidioc_s_mpegcomp) |
| break; |
| dbgarg (cmd, "ts_pid_pmt=%d, ts_pid_audio=%d, " |
| "ts_pid_video=%d, ts_pid_pcr=%d, ps_size=%d, " |
| "au_sample_rate=%d, au_pesid=%c, " |
| "vi_frame_rate=%d, vi_frames_per_gop=%d, " |
| "vi_bframes_count=%d, vi_pesid=%c\n", |
| p->ts_pid_pmt,p->ts_pid_audio, p->ts_pid_video, |
| p->ts_pid_pcr, p->ps_size, p->au_sample_rate, |
| p->au_pesid, p->vi_frame_rate, |
| p->vi_frames_per_gop, p->vi_bframes_count, |
| p->vi_pesid); |
| ret=vfd->vidioc_s_mpegcomp(file, fh, p); |
| break; |
| } |
| case VIDIOC_G_JPEGCOMP: |
| { |
| struct v4l2_jpegcompression *p=arg; |
| if (!vfd->vidioc_g_jpegcomp) |
| break; |
| ret=vfd->vidioc_g_jpegcomp(file, fh, p); |
| if (!ret) |
| dbgarg (cmd, "quality=%d, APPn=%d, " |
| "APP_len=%d, COM_len=%d, " |
| "jpeg_markers=%d\n", |
| p->quality,p->APPn,p->APP_len, |
| p->COM_len,p->jpeg_markers); |
| break; |
| } |
| case VIDIOC_S_JPEGCOMP: |
| { |
| struct v4l2_jpegcompression *p=arg; |
| if (!vfd->vidioc_g_jpegcomp) |
| break; |
| dbgarg (cmd, "quality=%d, APPn=%d, APP_len=%d, " |
| "COM_len=%d, jpeg_markers=%d\n", |
| p->quality,p->APPn,p->APP_len, |
| p->COM_len,p->jpeg_markers); |
| ret=vfd->vidioc_s_jpegcomp(file, fh, p); |
| break; |
| } |
| case VIDIOC_G_ENC_INDEX: |
| { |
| struct v4l2_enc_idx *p=arg; |
| |
| if (!vfd->vidioc_g_enc_index) |
| break; |
| ret=vfd->vidioc_g_enc_index(file, fh, p); |
| if (!ret) |
| dbgarg (cmd, "entries=%d, entries_cap=%d\n", |
| p->entries,p->entries_cap); |
| break; |
| } |
| case VIDIOC_ENCODER_CMD: |
| { |
| struct v4l2_encoder_cmd *p=arg; |
| |
| if (!vfd->vidioc_encoder_cmd) |
| break; |
| ret=vfd->vidioc_encoder_cmd(file, fh, p); |
| if (!ret) |
| dbgarg (cmd, "cmd=%d, flags=%d\n", |
| p->cmd,p->flags); |
| break; |
| } |
| case VIDIOC_TRY_ENCODER_CMD: |
| { |
| struct v4l2_encoder_cmd *p=arg; |
| |
| if (!vfd->vidioc_try_encoder_cmd) |
| break; |
| ret=vfd->vidioc_try_encoder_cmd(file, fh, p); |
| if (!ret) |
| dbgarg (cmd, "cmd=%d, flags=%d\n", |
| p->cmd,p->flags); |
| break; |
| } |
| case VIDIOC_G_PARM: |
| { |
| struct v4l2_streamparm *p=arg; |
| if (vfd->vidioc_g_parm) { |
| ret=vfd->vidioc_g_parm(file, fh, p); |
| } else { |
| struct v4l2_standard s; |
| |
| if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| return -EINVAL; |
| |
| v4l2_video_std_construct(&s, vfd->current_norm, |
| v4l2_norm_to_name(vfd->current_norm)); |
| |
| memset(p,0,sizeof(*p)); |
| |
| p->parm.capture.timeperframe = s.frameperiod; |
| ret=0; |
| } |
| |
| dbgarg (cmd, "type=%d\n", p->type); |
| break; |
| } |
| case VIDIOC_S_PARM: |
| { |
| struct v4l2_streamparm *p=arg; |
| if (!vfd->vidioc_s_parm) |
| break; |
| dbgarg (cmd, "type=%d\n", p->type); |
| ret=vfd->vidioc_s_parm(file, fh, p); |
| break; |
| } |
| case VIDIOC_G_TUNER: |
| { |
| struct v4l2_tuner *p=arg; |
| __u32 index=p->index; |
| |
| if (!vfd->vidioc_g_tuner) |
| break; |
| |
| memset(p,0,sizeof(*p)); |
| p->index=index; |
| |
| ret=vfd->vidioc_g_tuner(file, fh, p); |
| if (!ret) |
| dbgarg (cmd, "index=%d, name=%s, type=%d, " |
| "capability=%d, rangelow=%d, " |
| "rangehigh=%d, signal=%d, afc=%d, " |
| "rxsubchans=%d, audmode=%d\n", |
| p->index, p->name, p->type, |
| p->capability, p->rangelow, |
| p->rangehigh, p->rxsubchans, |
| p->audmode, p->signal, p->afc); |
| break; |
| } |
| case VIDIOC_S_TUNER: |
| { |
| struct v4l2_tuner *p=arg; |
| if (!vfd->vidioc_s_tuner) |
| break; |
| dbgarg (cmd, "index=%d, name=%s, type=%d, " |
| "capability=%d, rangelow=%d, rangehigh=%d, " |
| "signal=%d, afc=%d, rxsubchans=%d, " |
| "audmode=%d\n",p->index, p->name, p->type, |
| p->capability, p->rangelow,p->rangehigh, |
| p->rxsubchans, p->audmode, p->signal, |
| p->afc); |
| ret=vfd->vidioc_s_tuner(file, fh, p); |
| break; |
| } |
| case VIDIOC_G_FREQUENCY: |
| { |
| struct v4l2_frequency *p=arg; |
| if (!vfd->vidioc_g_frequency) |
| break; |
| |
| memset(p,0,sizeof(*p)); |
| |
| ret=vfd->vidioc_g_frequency(file, fh, p); |
| if (!ret) |
| dbgarg (cmd, "tuner=%d, type=%d, frequency=%d\n", |
| p->tuner,p->type,p->frequency); |
| break; |
| } |
| case VIDIOC_S_FREQUENCY: |
| { |
| struct v4l2_frequency *p=arg; |
| if (!vfd->vidioc_s_frequency) |
| break; |
| dbgarg (cmd, "tuner=%d, type=%d, frequency=%d\n", |
| p->tuner,p->type,p->frequency); |
| ret=vfd->vidioc_s_frequency(file, fh, p); |
| break; |
| } |
| case VIDIOC_G_SLICED_VBI_CAP: |
| { |
| struct v4l2_sliced_vbi_cap *p=arg; |
| if (!vfd->vidioc_g_sliced_vbi_cap) |
| break; |
| ret=vfd->vidioc_g_sliced_vbi_cap(file, fh, p); |
| if (!ret) |
| dbgarg (cmd, "service_set=%d\n", p->service_set); |
| break; |
| } |
| case VIDIOC_LOG_STATUS: |
| { |
| if (!vfd->vidioc_log_status) |
| break; |
| ret=vfd->vidioc_log_status(file, fh); |
| break; |
| } |
| #ifdef CONFIG_VIDEO_ADV_DEBUG |
| case VIDIOC_DBG_G_REGISTER: |
| { |
| struct v4l2_register *p=arg; |
| if (!capable(CAP_SYS_ADMIN)) |
| ret=-EPERM; |
| else if (vfd->vidioc_g_register) |
| ret=vfd->vidioc_g_register(file, fh, p); |
| break; |
| } |
| case VIDIOC_DBG_S_REGISTER: |
| { |
| struct v4l2_register *p=arg; |
| if (!capable(CAP_SYS_ADMIN)) |
| ret=-EPERM; |
| else if (vfd->vidioc_s_register) |
| ret=vfd->vidioc_s_register(file, fh, p); |
| break; |
| } |
| #endif |
| case VIDIOC_G_CHIP_IDENT: |
| { |
| struct v4l2_chip_ident *p=arg; |
| if (!vfd->vidioc_g_chip_ident) |
| break; |
| ret=vfd->vidioc_g_chip_ident(file, fh, p); |
| if (!ret) |
| dbgarg (cmd, "chip_ident=%u, revision=0x%x\n", p->ident, p->revision); |
| break; |
| } |
| } /* switch */ |
| |
| if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) { |
| if (ret<0) { |
| printk ("%s: err:\n", vfd->name); |
| v4l_print_ioctl(vfd->name, cmd); |
| } |
| } |
| |
| return ret; |
| } |
| |
| int video_ioctl2 (struct inode *inode, struct file *file, |
| unsigned int cmd, unsigned long arg) |
| { |
| char sbuf[128]; |
| void *mbuf = NULL; |
| void *parg = NULL; |
| int err = -EINVAL; |
| int is_ext_ctrl; |
| size_t ctrls_size = 0; |
| void __user *user_ptr = NULL; |
| |
| #ifdef __OLD_VIDIOC_ |
| cmd = video_fix_command(cmd); |
| #endif |
| is_ext_ctrl = (cmd == VIDIOC_S_EXT_CTRLS || cmd == VIDIOC_G_EXT_CTRLS || |
| cmd == VIDIOC_TRY_EXT_CTRLS); |
| |
| /* Copy arguments into temp kernel buffer */ |
| switch (_IOC_DIR(cmd)) { |
| case _IOC_NONE: |
| parg = NULL; |
| break; |
| case _IOC_READ: |
| case _IOC_WRITE: |
| case (_IOC_WRITE | _IOC_READ): |
| if (_IOC_SIZE(cmd) <= sizeof(sbuf)) { |
| parg = sbuf; |
| } else { |
| /* too big to allocate from stack */ |
| mbuf = kmalloc(_IOC_SIZE(cmd),GFP_KERNEL); |
| if (NULL == mbuf) |
| return -ENOMEM; |
| parg = mbuf; |
| } |
| |
| err = -EFAULT; |
| if (_IOC_DIR(cmd) & _IOC_WRITE) |
| if (copy_from_user(parg, (void __user *)arg, _IOC_SIZE(cmd))) |
| goto out; |
| break; |
| } |
| |
| if (is_ext_ctrl) { |
| struct v4l2_ext_controls *p = parg; |
| |
| /* In case of an error, tell the caller that it wasn't |
| a specific control that caused it. */ |
| p->error_idx = p->count; |
| user_ptr = (void __user *)p->controls; |
| if (p->count) { |
| ctrls_size = sizeof(struct v4l2_ext_control) * p->count; |
| /* Note: v4l2_ext_controls fits in sbuf[] so mbuf is still NULL. */ |
| mbuf = kmalloc(ctrls_size, GFP_KERNEL); |
| err = -ENOMEM; |
| if (NULL == mbuf) |
| goto out_ext_ctrl; |
| err = -EFAULT; |
| if (copy_from_user(mbuf, user_ptr, ctrls_size)) |
| goto out_ext_ctrl; |
| p->controls = mbuf; |
| } |
| } |
| |
| /* Handles IOCTL */ |
| err = __video_do_ioctl(inode, file, cmd, parg); |
| if (err == -ENOIOCTLCMD) |
| err = -EINVAL; |
| if (is_ext_ctrl) { |
| struct v4l2_ext_controls *p = parg; |
| |
| p->controls = (void *)user_ptr; |
| if (p->count && err == 0 && copy_to_user(user_ptr, mbuf, ctrls_size)) |
| err = -EFAULT; |
| goto out_ext_ctrl; |
| } |
| if (err < 0) |
| goto out; |
| |
| out_ext_ctrl: |
| /* Copy results into user buffer */ |
| switch (_IOC_DIR(cmd)) |
| { |
| case _IOC_READ: |
| case (_IOC_WRITE | _IOC_READ): |
| if (copy_to_user((void __user *)arg, parg, _IOC_SIZE(cmd))) |
| err = -EFAULT; |
| break; |
| } |
| |
| out: |
| kfree(mbuf); |
| return err; |
| } |
| |
| |
| static const struct file_operations video_fops; |
| |
| /** |
| * video_register_device - register video4linux devices |
| * @vfd: video device structure we want to register |
| * @type: type of device to register |
| * @nr: which device number (0 == /dev/video0, 1 == /dev/video1, ... |
| * -1 == first free) |
| * |
| * The registration code assigns minor numbers based on the type |
| * requested. -ENFILE is returned in all the device slots for this |
| * category are full. If not then the minor field is set and the |
| * driver initialize function is called (if non %NULL). |
| * |
| * Zero is returned on success. |
| * |
| * Valid types are |
| * |
| * %VFL_TYPE_GRABBER - A frame grabber |
| * |
| * %VFL_TYPE_VTX - A teletext device |
| * |
| * %VFL_TYPE_VBI - Vertical blank data (undecoded) |
| * |
| * %VFL_TYPE_RADIO - A radio card |
| */ |
| |
| int video_register_device(struct video_device *vfd, int type, int nr) |
| { |
| int i=0; |
| int base; |
| int end; |
| int ret; |
| char *name_base; |
| |
| switch(type) |
| { |
| case VFL_TYPE_GRABBER: |
| base=MINOR_VFL_TYPE_GRABBER_MIN; |
| end=MINOR_VFL_TYPE_GRABBER_MAX+1; |
| name_base = "video"; |
| break; |
| case VFL_TYPE_VTX: |
| base=MINOR_VFL_TYPE_VTX_MIN; |
| end=MINOR_VFL_TYPE_VTX_MAX+1; |
| name_base = "vtx"; |
| break; |
| case VFL_TYPE_VBI: |
| base=MINOR_VFL_TYPE_VBI_MIN; |
| end=MINOR_VFL_TYPE_VBI_MAX+1; |
| name_base = "vbi"; |
| break; |
| case VFL_TYPE_RADIO: |
| base=MINOR_VFL_TYPE_RADIO_MIN; |
| end=MINOR_VFL_TYPE_RADIO_MAX+1; |
| name_base = "radio"; |
| break; |
| default: |
| printk(KERN_ERR "%s called with unknown type: %d\n", |
| __FUNCTION__, type); |
| return -1; |
| } |
| |
| /* pick a minor number */ |
| mutex_lock(&videodev_lock); |
| if (nr >= 0 && nr < end-base) { |
| /* use the one the driver asked for */ |
| i = base+nr; |
| if (NULL != video_device[i]) { |
| mutex_unlock(&videodev_lock); |
| return -ENFILE; |
| } |
| } else { |
| /* use first free */ |
| for(i=base;i<end;i++) |
| if (NULL == video_device[i]) |
| break; |
| if (i == end) { |
| mutex_unlock(&videodev_lock); |
| return -ENFILE; |
| } |
| } |
| video_device[i]=vfd; |
| vfd->minor=i; |
| mutex_unlock(&videodev_lock); |
| mutex_init(&vfd->lock); |
| |
| /* sysfs class */ |
| memset(&vfd->class_dev, 0x00, sizeof(vfd->class_dev)); |
| if (vfd->dev) |
| vfd->class_dev.dev = vfd->dev; |
| vfd->class_dev.class = &video_class; |
| vfd->class_dev.devt = MKDEV(VIDEO_MAJOR, vfd->minor); |
| sprintf(vfd->class_dev.class_id, "%s%d", name_base, i - base); |
| ret = class_device_register(&vfd->class_dev); |
| if (ret < 0) { |
| printk(KERN_ERR "%s: class_device_register failed\n", |
| __FUNCTION__); |
| goto fail_minor; |
| } |
| ret = class_device_create_file(&vfd->class_dev, &class_device_attr_name); |
| if (ret < 0) { |
| printk(KERN_ERR "%s: class_device_create_file 'name' failed\n", |
| __FUNCTION__); |
| goto fail_classdev; |
| } |
| |
| #if 1 |
| /* needed until all drivers are fixed */ |
| if (!vfd->release) |
| printk(KERN_WARNING "videodev: \"%s\" has no release callback. " |
| "Please fix your driver for proper sysfs support, see " |
| "http://lwn.net/Articles/36850/\n", vfd->name); |
| #endif |
| return 0; |
| |
| fail_classdev: |
| class_device_unregister(&vfd->class_dev); |
| fail_minor: |
| mutex_lock(&videodev_lock); |
| video_device[vfd->minor] = NULL; |
| vfd->minor = -1; |
| mutex_unlock(&videodev_lock); |
| return ret; |
| } |
| |
| /** |
| * video_unregister_device - unregister a video4linux device |
| * @vfd: the device to unregister |
| * |
| * This unregisters the passed device and deassigns the minor |
| * number. Future open calls will be met with errors. |
| */ |
| |
| void video_unregister_device(struct video_device *vfd) |
| { |
| mutex_lock(&videodev_lock); |
| if(video_device[vfd->minor]!=vfd) |
| panic("videodev: bad unregister"); |
| |
| video_device[vfd->minor]=NULL; |
| class_device_unregister(&vfd->class_dev); |
| mutex_unlock(&videodev_lock); |
| } |
| |
| /* |
| * Video fs operations |
| */ |
| static const struct file_operations video_fops= |
| { |
| .owner = THIS_MODULE, |
| .llseek = no_llseek, |
| .open = video_open, |
| }; |
| |
| /* |
| * Initialise video for linux |
| */ |
| |
| static int __init videodev_init(void) |
| { |
| int ret; |
| |
| printk(KERN_INFO "Linux video capture interface: v2.00\n"); |
| if (register_chrdev(VIDEO_MAJOR, VIDEO_NAME, &video_fops)) { |
| printk(KERN_WARNING "video_dev: unable to get major %d\n", VIDEO_MAJOR); |
| return -EIO; |
| } |
| |
| ret = class_register(&video_class); |
| if (ret < 0) { |
| unregister_chrdev(VIDEO_MAJOR, VIDEO_NAME); |
| printk(KERN_WARNING "video_dev: class_register failed\n"); |
| return -EIO; |
| } |
| |
| return 0; |
| } |
| |
| static void __exit videodev_exit(void) |
| { |
| class_unregister(&video_class); |
| unregister_chrdev(VIDEO_MAJOR, VIDEO_NAME); |
| } |
| |
| module_init(videodev_init) |
| module_exit(videodev_exit) |
| |
| EXPORT_SYMBOL(video_register_device); |
| EXPORT_SYMBOL(video_unregister_device); |
| EXPORT_SYMBOL(video_devdata); |
| EXPORT_SYMBOL(video_usercopy); |
| EXPORT_SYMBOL(video_exclusive_open); |
| EXPORT_SYMBOL(video_exclusive_release); |
| EXPORT_SYMBOL(video_ioctl2); |
| EXPORT_SYMBOL(video_device_alloc); |
| EXPORT_SYMBOL(video_device_release); |
| |
| MODULE_AUTHOR("Alan Cox, Mauro Carvalho Chehab <mchehab@infradead.org>"); |
| MODULE_DESCRIPTION("Device registrar for Video4Linux drivers v2"); |
| MODULE_LICENSE("GPL"); |
| |
| |
| /* |
| * Local variables: |
| * c-basic-offset: 8 |
| * End: |
| */ |