diff options
Diffstat (limited to 'drivers/media/video/videodev.c')
| -rw-r--r-- | drivers/media/video/videodev.c | 735 |
1 files changed, 466 insertions, 269 deletions
diff --git a/drivers/media/video/videodev.c b/drivers/media/video/videodev.c index 7649860a388..6616e657055 100644 --- a/drivers/media/video/videodev.c +++ b/drivers/media/video/videodev.c @@ -17,15 +17,19 @@ */ #define dbgarg(cmd, fmt, arg...) \ - if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) { \ + do { \ + if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) { \ printk(KERN_DEBUG "%s: ", vfd->name); \ v4l_printk_ioctl(cmd); \ printk(" " fmt, ## arg); \ - } + } \ + } while (0) #define dbgarg2(fmt, arg...) \ - if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) \ - printk(KERN_DEBUG "%s: " fmt, vfd->name, ## arg); + do { \ + if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) \ + printk(KERN_DEBUG "%s: " fmt, vfd->name, ## arg);\ + } while (0) #include <linux/module.h> #include <linux/types.h> @@ -138,7 +142,7 @@ EXPORT_SYMBOL(v4l2_video_std_construct); /* ----------------------------------------------------------------- */ /* some arrays for pretty-printing debug messages of enum types */ -char *v4l2_field_names[] = { +const char *v4l2_field_names[] = { [V4L2_FIELD_ANY] = "any", [V4L2_FIELD_NONE] = "none", [V4L2_FIELD_TOP] = "top", @@ -152,19 +156,19 @@ char *v4l2_field_names[] = { }; EXPORT_SYMBOL(v4l2_field_names); -char *v4l2_type_names[] = { - [V4L2_BUF_TYPE_VIDEO_CAPTURE] = "video-cap", - [V4L2_BUF_TYPE_VIDEO_OVERLAY] = "video-over", - [V4L2_BUF_TYPE_VIDEO_OUTPUT] = "video-out", +const char *v4l2_type_names[] = { + [V4L2_BUF_TYPE_VIDEO_CAPTURE] = "vid-cap", + [V4L2_BUF_TYPE_VIDEO_OVERLAY] = "vid-overlay", + [V4L2_BUF_TYPE_VIDEO_OUTPUT] = "vid-out", [V4L2_BUF_TYPE_VBI_CAPTURE] = "vbi-cap", [V4L2_BUF_TYPE_VBI_OUTPUT] = "vbi-out", [V4L2_BUF_TYPE_SLICED_VBI_CAPTURE] = "sliced-vbi-cap", [V4L2_BUF_TYPE_SLICED_VBI_OUTPUT] = "sliced-vbi-out", - [V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY] = "video-out-over", + [V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY] = "vid-out-overlay", }; EXPORT_SYMBOL(v4l2_type_names); -static char *v4l2_memory_names[] = { +static const char *v4l2_memory_names[] = { [V4L2_MEMORY_MMAP] = "mmap", [V4L2_MEMORY_USERPTR] = "userptr", [V4L2_MEMORY_OVERLAY] = "overlay", @@ -278,6 +282,7 @@ static const char *v4l2_ioctls[] = { [_IOC_NR(VIDIOC_DBG_G_REGISTER)] = "VIDIOC_DBG_G_REGISTER", [_IOC_NR(VIDIOC_G_CHIP_IDENT)] = "VIDIOC_G_CHIP_IDENT", + [_IOC_NR(VIDIOC_S_HW_FREQ_SEEK)] = "VIDIOC_S_HW_FREQ_SEEK", #endif }; #define V4L2_IOCTLS ARRAY_SIZE(v4l2_ioctls) @@ -371,6 +376,14 @@ EXPORT_SYMBOL(v4l_printk_ioctl); * sysfs stuff */ +static ssize_t show_index(struct device *cd, + struct device_attribute *attr, char *buf) +{ + struct video_device *vfd = container_of(cd, struct video_device, + class_dev); + return sprintf(buf, "%i\n", vfd->index); +} + static ssize_t show_name(struct device *cd, struct device_attribute *attr, char *buf) { @@ -379,6 +392,12 @@ static ssize_t show_name(struct device *cd, return sprintf(buf, "%.*s\n", (int)sizeof(vfd->name), vfd->name); } +static struct device_attribute video_device_attrs[] = { + __ATTR(name, S_IRUGO, show_name, NULL), + __ATTR(index, S_IRUGO, show_index, NULL), + __ATTR_NULL +}; + struct video_device *video_device_alloc(void) { struct video_device *vfd; @@ -407,11 +426,6 @@ static void video_release(struct device *cd) vfd->release(vfd); } -static struct device_attribute video_device_attrs[] = { - __ATTR(name, S_IRUGO, show_name, NULL), - __ATTR_NULL -}; - static struct class video_class = { .name = VIDEO_NAME, .dev_attrs = video_device_attrs, @@ -650,7 +664,7 @@ static void dbgbuf(unsigned int cmd, struct video_device *vfd, p->field, p->sequence, prt_names(p->memory, v4l2_memory_names), p->m.userptr, p->length); - dbgarg2 ("timecode= %02d:%02d:%02d type=%d, " + 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); @@ -659,7 +673,7 @@ static void dbgbuf(unsigned int cmd, struct video_device *vfd, 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, + dbgarg2("%sRect start at %dx%d, size=%dx%d\n", s, r->left, r->top, r->width, r->height); }; @@ -677,40 +691,85 @@ static inline void v4l_print_pix_fmt (struct video_device *vfd, fmt->bytesperline, fmt->sizeimage, fmt->colorspace); }; +static inline void v4l_print_ext_ctrls(unsigned int cmd, + struct video_device *vfd, struct v4l2_ext_controls *c, int show_vals) +{ + __u32 i; + + if (!(vfd->debug & V4L2_DEBUG_IOCTL_ARG)) + return; + dbgarg(cmd, ""); + printk(KERN_CONT "class=0x%x", c->ctrl_class); + for (i = 0; i < c->count; i++) { + if (show_vals) + printk(KERN_CONT " id/val=0x%x/0x%x", + c->controls[i].id, c->controls[i].value); + else + printk(KERN_CONT " id=0x%x", c->controls[i].id); + } + printk(KERN_CONT "\n"); +}; + +static inline int check_ext_ctrls(struct v4l2_ext_controls *c, int allow_priv) +{ + __u32 i; + + /* zero the reserved fields */ + c->reserved[0] = c->reserved[1] = 0; + for (i = 0; i < c->count; i++) { + c->controls[i].reserved2[0] = 0; + c->controls[i].reserved2[1] = 0; + } + /* V4L2_CID_PRIVATE_BASE cannot be used as control class + when using extended controls. + Only when passed in through VIDIOC_G_CTRL and VIDIOC_S_CTRL + is it allowed for backwards compatibility. + */ + if (!allow_priv && c->ctrl_class == V4L2_CID_PRIVATE_BASE) + return 0; + /* Check that all controls are from the same control class. */ + for (i = 0; i < c->count; i++) { + if (V4L2_CTRL_ID2CLASS(c->controls[i].id) != c->ctrl_class) { + c->error_idx = i; + return 0; + } + } + return 1; +} 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) + if (vfd->vidioc_try_fmt_vid_cap) return (0); break; case V4L2_BUF_TYPE_VIDEO_OVERLAY: - if (vfd->vidioc_try_fmt_overlay) + if (vfd->vidioc_try_fmt_vid_overlay) return (0); break; - case V4L2_BUF_TYPE_VBI_CAPTURE: - if (vfd->vidioc_try_fmt_vbi) + case V4L2_BUF_TYPE_VIDEO_OUTPUT: + if (vfd->vidioc_try_fmt_vid_out) return (0); break; - case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: - if (vfd->vidioc_try_fmt_vbi_output) + case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: + if (vfd->vidioc_try_fmt_vid_out_overlay) return (0); break; - case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: - if (vfd->vidioc_try_fmt_vbi_capture) + case V4L2_BUF_TYPE_VBI_CAPTURE: + if (vfd->vidioc_try_fmt_vbi_cap) return (0); break; - case V4L2_BUF_TYPE_VIDEO_OUTPUT: - if (vfd->vidioc_try_fmt_video_output) + case V4L2_BUF_TYPE_VBI_OUTPUT: + if (vfd->vidioc_try_fmt_vbi_out) return (0); break; - case V4L2_BUF_TYPE_VBI_OUTPUT: - if (vfd->vidioc_try_fmt_vbi_output) + case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: + if (vfd->vidioc_try_fmt_sliced_vbi_cap) return (0); break; - case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: - if (vfd->vidioc_try_fmt_output_overlay) + case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: + if (vfd->vidioc_try_fmt_sliced_vbi_out) return (0); break; case V4L2_BUF_TYPE_PRIVATE: @@ -827,46 +886,37 @@ static int __video_do_ioctl(struct inode *inode, struct file *file, switch (type) { case V4L2_BUF_TYPE_VIDEO_CAPTURE: - if (vfd->vidioc_enum_fmt_cap) - ret=vfd->vidioc_enum_fmt_cap(file, fh, f); + if (vfd->vidioc_enum_fmt_vid_cap) + ret = vfd->vidioc_enum_fmt_vid_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); + if (vfd->vidioc_enum_fmt_vid_overlay) + ret = vfd->vidioc_enum_fmt_vid_overlay(file, + fh, f); break; +#if 1 + /* V4L2_BUF_TYPE_VBI_CAPTURE should not support VIDIOC_ENUM_FMT + * according to the spec. The bttv and saa7134 drivers support + * it though, so just warn that this is deprecated and will be + * removed in the near future. */ 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); + if (vfd->vidioc_enum_fmt_vbi_cap) { + printk(KERN_WARNING "vidioc_enum_fmt_vbi_cap will be removed in 2.6.28!\n"); + ret = vfd->vidioc_enum_fmt_vbi_cap(file, fh, f); + } break; +#endif 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); + if (vfd->vidioc_enum_fmt_vid_out) + ret = vfd->vidioc_enum_fmt_vid_out(file, fh, f); break; case V4L2_BUF_TYPE_PRIVATE: if (vfd->vidioc_enum_fmt_type_private) - ret=vfd->vidioc_enum_fmt_type_private(file, + ret = vfd->vidioc_enum_fmt_type_private(file, fh, f); break; + default: + break; } if (!ret) dbgarg (cmd, "index=%d, type=%d, flags=%d, " @@ -882,54 +932,56 @@ static int __video_do_ioctl(struct inode *inode, struct file *file, 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; + memset(f->fmt.raw_data, 0, sizeof(f->fmt.raw_data)); /* FIXME: Should be one dump per type */ - dbgarg (cmd, "type=%s\n", prt_names(type, - v4l2_type_names)); + dbgarg(cmd, "type=%s\n", prt_names(f->type, v4l2_type_names)); - switch (type) { + switch (f->type) { case V4L2_BUF_TYPE_VIDEO_CAPTURE: - if (vfd->vidioc_g_fmt_cap) - ret=vfd->vidioc_g_fmt_cap(file, fh, f); + if (vfd->vidioc_g_fmt_vid_cap) + ret = vfd->vidioc_g_fmt_vid_cap(file, fh, f); if (!ret) - v4l_print_pix_fmt(vfd,&f->fmt.pix); + 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); + if (vfd->vidioc_g_fmt_vid_overlay) + ret = vfd->vidioc_g_fmt_vid_overlay(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); + if (vfd->vidioc_g_fmt_vid_out) + ret = vfd->vidioc_g_fmt_vid_out(file, fh, f); + if (!ret) + v4l_print_pix_fmt(vfd, &f->fmt.pix); 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); + if (vfd->vidioc_g_fmt_vid_out_overlay) + ret = vfd->vidioc_g_fmt_vid_out_overlay(file, + fh, f); + break; + case V4L2_BUF_TYPE_VBI_CAPTURE: + if (vfd->vidioc_g_fmt_vbi_cap) + ret = vfd->vidioc_g_fmt_vbi_cap(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); + if (vfd->vidioc_g_fmt_vbi_out) + ret = vfd->vidioc_g_fmt_vbi_out(file, fh, f); + break; + case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: + if (vfd->vidioc_g_fmt_sliced_vbi_cap) + ret = vfd->vidioc_g_fmt_sliced_vbi_cap(file, + fh, f); + break; + case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: + if (vfd->vidioc_g_fmt_sliced_vbi_out) + ret = vfd->vidioc_g_fmt_sliced_vbi_out(file, + fh, f); break; case V4L2_BUF_TYPE_PRIVATE: if (vfd->vidioc_g_fmt_type_private) - ret=vfd->vidioc_g_fmt_type_private(file, + ret = vfd->vidioc_g_fmt_type_private(file, fh, f); break; } @@ -941,48 +993,50 @@ static int __video_do_ioctl(struct inode *inode, struct file *file, 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)); + dbgarg(cmd, "type=%s\n", prt_names(f->type, v4l2_type_names)); 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); + v4l_print_pix_fmt(vfd, &f->fmt.pix); + if (vfd->vidioc_s_fmt_vid_cap) + ret = vfd->vidioc_s_fmt_vid_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); + if (vfd->vidioc_s_fmt_vid_overlay) + ret = vfd->vidioc_s_fmt_vid_overlay(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); + v4l_print_pix_fmt(vfd, &f->fmt.pix); + if (vfd->vidioc_s_fmt_vid_out) + ret = vfd->vidioc_s_fmt_vid_out(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); + if (vfd->vidioc_s_fmt_vid_out_overlay) + ret = vfd->vidioc_s_fmt_vid_out_overlay(file, + fh, f); + break; + case V4L2_BUF_TYPE_VBI_CAPTURE: + if (vfd->vidioc_s_fmt_vbi_cap) + ret = vfd->vidioc_s_fmt_vbi_cap(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); + if (vfd->vidioc_s_fmt_vbi_out) + ret = vfd->vidioc_s_fmt_vbi_out(file, fh, f); + break; + case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: + if (vfd->vidioc_s_fmt_sliced_vbi_cap) + ret = vfd->vidioc_s_fmt_sliced_vbi_cap(file, + fh, f); + break; + case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: + if (vfd->vidioc_s_fmt_sliced_vbi_out) + ret = vfd->vidioc_s_fmt_sliced_vbi_out(file, + fh, f); break; case V4L2_BUF_TYPE_PRIVATE: if (vfd->vidioc_s_fmt_type_private) - ret=vfd->vidioc_s_fmt_type_private(file, + ret = vfd->vidioc_s_fmt_type_private(file, fh, f); break; } @@ -997,46 +1051,48 @@ static int __video_do_ioctl(struct inode *inode, struct file *file, v4l2_type_names)); 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 (vfd->vidioc_try_fmt_vid_cap) + ret = vfd->vidioc_try_fmt_vid_cap(file, fh, f); if (!ret) - v4l_print_pix_fmt(vfd,&f->fmt.pix); + 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); + if (vfd->vidioc_try_fmt_vid_overlay) + ret = vfd->vidioc_try_fmt_vid_overlay(file, + fh, f); + break; + case V4L2_BUF_TYPE_VIDEO_OUTPUT: + if (vfd->vidioc_try_fmt_vid_out) + ret = vfd->vidioc_try_fmt_vid_out(file, fh, f); + if (!ret) + v4l_print_pix_fmt(vfd, &f->fmt.pix); + break; + case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: + if (vfd->vidioc_try_fmt_vid_out_overlay) + ret = vfd->vidioc_try_fmt_vid_out_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); + if (vfd->vidioc_try_fmt_vbi_cap) + ret = vfd->vidioc_try_fmt_vbi_cap(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); + case V4L2_BUF_TYPE_VBI_OUTPUT: + if (vfd->vidioc_try_fmt_vbi_out) + ret = vfd->vidioc_try_fmt_vbi_out(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, + if (vfd->vidioc_try_fmt_sliced_vbi_cap) + ret = vfd->vidioc_try_fmt_sliced_vbi_cap(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, + case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: + if (vfd->vidioc_try_fmt_sliced_vbi_out) + ret = vfd->vidioc_try_fmt_sliced_vbi_out(file, fh, f); break; case V4L2_BUF_TYPE_PRIVATE: if (vfd->vidioc_try_fmt_type_private) - ret=vfd->vidioc_try_fmt_type_private(file, + ret = vfd->vidioc_try_fmt_type_private(file, fh, f); break; } @@ -1120,29 +1176,29 @@ static int __video_do_ioctl(struct inode *inode, struct file *file, } case VIDIOC_G_FBUF: { - struct v4l2_framebuffer *p=arg; + struct v4l2_framebuffer *p = arg; + if (!vfd->vidioc_g_fbuf) break; - ret=vfd->vidioc_g_fbuf(file, fh, arg); + ret = vfd->vidioc_g_fbuf(file, fh, arg); if (!ret) { - dbgarg (cmd, "capability=%d, flags=%d, base=0x%08lx\n", - p->capability,p->flags, + dbgarg(cmd, "capability=0x%x, flags=%d, base=0x%08lx\n", + p->capability, p->flags, (unsigned long)p->base); - v4l_print_pix_fmt (vfd, &p->fmt); + v4l_print_pix_fmt(vfd, &p->fmt); } break; } case VIDIOC_S_FBUF: { - struct v4l2_framebuffer *p=arg; + 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); - + dbgarg(cmd, "capability=0x%x, 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: @@ -1194,7 +1250,7 @@ static int __video_do_ioctl(struct inode *inode, struct file *file, v4l2_video_std_construct(p, curr_id, descr); p->index = index; - dbgarg(cmd, "index=%d, id=%Ld, name=%s, fps=%d/%d, " + dbgarg(cmd, "index=%d, id=0x%Lx, name=%s, fps=%d/%d, " "framelines=%d\n", p->index, (unsigned long long)p->id, p->name, p->frameperiod.numerator, @@ -1208,18 +1264,22 @@ static int __video_do_ioctl(struct inode *inode, struct file *file, { v4l2_std_id *id = arg; - *id = vfd->current_norm; - - dbgarg (cmd, "value=%08Lx\n", (long long unsigned) *id); + ret = 0; + /* Calls the specific handler */ + if (vfd->vidioc_g_std) + ret = vfd->vidioc_g_std(file, fh, id); + else + *id = vfd->current_norm; - ret=0; + if (!ret) + dbgarg(cmd, "std=0x%08Lx\n", (long long unsigned)*id); break; } case VIDIOC_S_STD: { v4l2_std_id *id = arg,norm; - dbgarg (cmd, "value=%08Lx\n", (long long unsigned) *id); + dbgarg(cmd, "std=%08Lx\n", (long long unsigned)*id); norm = (*id) & vfd->tvnorms; if ( vfd->tvnorms && !norm) /* Check if std is supported */ @@ -1295,6 +1355,25 @@ static int __video_do_ioctl(struct inode *inode, struct file *file, } /* ------ output switching ---------- */ + case VIDIOC_ENUMOUTPUT: + { + struct v4l2_output *p = arg; + int i = p->index; + + if (!vfd->vidioc_enum_output) + break; + memset(p, 0, sizeof(*p)); + p->index = i; + + ret = vfd->vidioc_enum_output(file, fh, p); + if (!ret) + dbgarg(cmd, "index=%d, name=%s, type=%d, " + "audioset=0x%x, " + "modulator=%d, std=0x%08Lx\n", + p->index, p->name, p->type, p->audioset, + p->modulator, (unsigned long long)p->std); + break; + } case VIDIOC_G_OUTPUT: { unsigned int *i = arg; @@ -1320,132 +1399,172 @@ static int __video_do_ioctl(struct inode *inode, struct file *file, /* --- controls ---------------------------------------------- */ case VIDIOC_QUERYCTRL: { - struct v4l2_queryctrl *p=arg; + struct v4l2_queryctrl *p = arg; if (!vfd->vidioc_queryctrl) break; - ret=vfd->vidioc_queryctrl(file, fh, p); - + 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); + dbgarg(cmd, "id=0x%x, 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); + else + dbgarg(cmd, "id=0x%x\n", p->id); break; } case VIDIOC_G_CTRL: { struct v4l2_control *p = arg; - if (!vfd->vidioc_g_ctrl) + if (vfd->vidioc_g_ctrl) + ret = vfd->vidioc_g_ctrl(file, fh, p); + else if (vfd->vidioc_g_ext_ctrls) { + struct v4l2_ext_controls ctrls; + struct v4l2_ext_control ctrl; + + ctrls.ctrl_class = V4L2_CTRL_ID2CLASS(p->id); + ctrls.count = 1; + ctrls.controls = &ctrl; + ctrl.id = p->id; + ctrl.value = p->value; + if (check_ext_ctrls(&ctrls, 1)) { + ret = vfd->vidioc_g_ext_ctrls(file, fh, &ctrls); + if (ret == 0) + p->value = ctrl.value; + } + } else 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); + dbgarg(cmd, "id=0x%x, value=%d\n", p->id, p->value); + else + dbgarg(cmd, "id=0x%x\n", p->id); break; } case VIDIOC_S_CTRL: { struct v4l2_control *p = arg; + struct v4l2_ext_controls ctrls; + struct v4l2_ext_control ctrl; + + if (!vfd->vidioc_s_ctrl && !vfd->vidioc_s_ext_ctrls) + break; - if (!vfd->vidioc_s_ctrl) + dbgarg(cmd, "id=0x%x, value=%d\n", p->id, p->value); + + if (vfd->vidioc_s_ctrl) { + ret = vfd->vidioc_s_ctrl(file, fh, p); + break; + } + if (!vfd->vidioc_s_ext_ctrls) break; - dbgarg (cmd, "id=%d, value=%d\n", p->id, p->value); - ret=vfd->vidioc_s_ctrl(file, fh, p); + ctrls.ctrl_class = V4L2_CTRL_ID2CLASS(p->id); + ctrls.count = 1; + ctrls.controls = &ctrl; + ctrl.id = p->id; + ctrl.value = p->value; + if (check_ext_ctrls(&ctrls, 1)) + ret = vfd->vidioc_s_ext_ctrls(file, fh, &ctrls); 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); - } + p->error_idx = p->count; + if (!vfd->vidioc_g_ext_ctrls) + break; + if (check_ext_ctrls(p, 0)) + ret = vfd->vidioc_g_ext_ctrls(file, fh, p); + v4l_print_ext_ctrls(cmd, vfd, p, !ret); 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); - } + p->error_idx = p->count; + if (!vfd->vidioc_s_ext_ctrls) + break; + v4l_print_ext_ctrls(cmd, vfd, p, 1); + if (check_ext_ctrls(p, 0)) + 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); - } + p->error_idx = p->count; + if (!vfd->vidioc_try_ext_ctrls) + break; + v4l_print_ext_ctrls(cmd, vfd, p, 1); + if (check_ext_ctrls(p, 0)) + ret = vfd->vidioc_try_ext_ctrls(file, fh, p); break; } case VIDIOC_QUERYMENU: { - struct v4l2_querymenu *p=arg; + struct v4l2_querymenu *p = arg; + if (!vfd->vidioc_querymenu) break; - ret=vfd->vidioc_querymenu(file, fh, p); + ret = vfd->vidioc_querymenu(file, fh, p); if (!ret) - dbgarg (cmd, "id=%d, index=%d, name=%s\n", - p->id,p->index,p->name); + dbgarg(cmd, "id=0x%x, index=%d, name=%s\n", + p->id, p->index, p->name); + else + dbgarg(cmd, "id=0x%x, index=%d\n", + p->id, p->index); break; } /* --- audio ---------------------------------------------- */ case VIDIOC_ENUMAUDIO: { - struct v4l2_audio *p=arg; + 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); + ret = vfd->vidioc_enumaudio(file, fh, p); if (!ret) - dbgarg2("index=%d, name=%s, capability=%d, " - "mode=%d\n",p->index,p->name, + dbgarg(cmd, "index=%d, name=%s, capability=0x%x, " + "mode=0x%x\n", p->index, p->name, p->capability, p->mode); + else + dbgarg(cmd, "index=%d\n", p->index); break; } case VIDIOC_G_AUDIO: { - struct v4l2_audio *p=arg; - __u32 index=p->index; + 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); + memset(p, 0, sizeof(*p)); + p->index = 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); + dbgarg(cmd, "index=%d, name=%s, capability=0x%x, " + "mode=0x%x\n", p->index, + p->name, p->capability, p->mode); + else + dbgarg(cmd, "index=%d\n", p->index); break; } case VIDIOC_S_AUDIO: { - struct v4l2_audio *p=arg; + 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, + dbgarg(cmd, "index=%d, name=%s, capability=0x%x, " + "mode=0x%x\n", p->index, p->name, p->capability, p->mode); - ret=vfd->vidioc_s_audio(file, fh, p); + ret = vfd->vidioc_s_audio(file, fh, p); break; } case VIDIOC_ENUMAUDOUT: @@ -1521,9 +1640,9 @@ static int __video_do_ioctl(struct inode *inode, struct file *file, struct v4l2_crop *p=arg; if (!vfd->vidioc_g_crop) break; + dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); ret=vfd->vidioc_g_crop(file, fh, p); if (!ret) { - dbgarg(cmd, "type=%d\n", p->type); dbgrect(vfd, "", &p->c); } break; @@ -1533,21 +1652,24 @@ static int __video_do_ioctl(struct inode *inode, struct file *file, struct v4l2_crop *p=arg; if (!vfd->vidioc_s_crop) break; - dbgarg(cmd, "type=%d\n", p->type); + dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); dbgrect(vfd, "", &p->c); ret=vfd->vidioc_s_crop(file, fh, p); break; } case VIDIOC_CROPCAP: { - struct v4l2_cropcap *p=arg; + 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); + dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); + ret = vfd->vidioc_cropcap(file, fh, p); + if (!ret) { + dbgrect(vfd, "bounds ", &p->bounds); + dbgrect(vfd, "defrect ", &p->defrect); + } break; } case VIDIOC_G_JPEGCOMP: @@ -1590,26 +1712,26 @@ static int __video_do_ioctl(struct inode *inode, struct file *file, } case VIDIOC_ENCODER_CMD: { - struct v4l2_encoder_cmd *p=arg; + struct v4l2_encoder_cmd *p = arg; if (!vfd->vidioc_encoder_cmd) break; - ret=vfd->vidioc_encoder_cmd(file, fh, p); + memset(&p->raw, 0, sizeof(p->raw)); + ret = vfd->vidioc_encoder_cmd(file, fh, p); if (!ret) - dbgarg (cmd, "cmd=%d, flags=%d\n", - p->cmd,p->flags); + dbgarg(cmd, "cmd=%d, flags=%x\n", p->cmd, p->flags); break; } case VIDIOC_TRY_ENCODER_CMD: { - struct v4l2_encoder_cmd *p=arg; + struct v4l2_encoder_cmd *p = arg; if (!vfd->vidioc_try_encoder_cmd) break; - ret=vfd->vidioc_try_encoder_cmd(file, fh, p); + memset(&p->raw, 0, sizeof(p->raw)); + ret = vfd->vidioc_try_encoder_cmd(file, fh, p); if (!ret) - dbgarg (cmd, "cmd=%d, flags=%d\n", - p->cmd,p->flags); + dbgarg(cmd, "cmd=%d, flags=%x\n", p->cmd, p->flags); break; } case VIDIOC_G_PARM: @@ -1649,54 +1771,57 @@ static int __video_do_ioctl(struct inode *inode, struct file *file, } case VIDIOC_G_TUNER: { - struct v4l2_tuner *p=arg; - __u32 index=p->index; + struct v4l2_tuner *p = arg; + __u32 index = p->index; if (!vfd->vidioc_g_tuner) break; - memset(p,0,sizeof(*p)); - p->index=index; + memset(p, 0, sizeof(*p)); + p->index = index; - ret=vfd->vidioc_g_tuner(file, fh, p); + ret = vfd->vidioc_g_tuner(file, fh, p); if (!ret) - dbgarg (cmd, "index=%d, name=%s, type=%d, " - "capability=%d, rangelow=%d, " + dbgarg(cmd, "index=%d, name=%s, type=%d, " + "capability=0x%x, rangelow=%d, " "rangehigh=%d, signal=%d, afc=%d, " - "rxsubchans=%d, audmode=%d\n", + "rxsubchans=0x%x, audmode=%d\n", p->index, p->name, p->type, p->capability, p->rangelow, - p->rangehigh, p->rxsubchans, - p->audmode, p->signal, p->afc); + p->rangehigh, p->signal, p->afc, + p->rxsubchans, p->audmode); break; } case VIDIOC_S_TUNER: { - struct v4l2_tuner *p=arg; + 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); + dbgarg(cmd, "index=%d, name=%s, type=%d, " + "capability=0x%x, rangelow=%d, " + "rangehigh=%d, signal=%d, afc=%d, " + "rxsubchans=0x%x, audmode=%d\n", + p->index, p->name, p->type, + p->capability, p->rangelow, + p->rangehigh, p->signal, p->afc, + p->rxsubchans, p->audmode); + ret = vfd->vidioc_s_tuner(file, fh, p); break; } case VIDIOC_G_FREQUENCY: { - struct v4l2_frequency *p=arg; + struct v4l2_frequency *p = arg; + if (!vfd->vidioc_g_frequency) break; - memset(p,0,sizeof(*p)); + memset(p->reserved, 0, sizeof(p->reserved)); - ret=vfd->vidioc_g_frequency(file, fh, 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); + dbgarg(cmd, "tuner=%d, type=%d, frequency=%d\n", + p->tuner, p->type, p->frequency); break; } case VIDIOC_S_FREQUENCY: @@ -1711,12 +1836,17 @@ static int __video_do_ioctl(struct inode *inode, struct file *file, } case VIDIOC_G_SLICED_VBI_CAP: { - struct v4l2_sliced_vbi_cap *p=arg; + struct v4l2_sliced_vbi_cap *p = arg; + __u32 type = p->type; + if (!vfd->vidioc_g_sliced_vbi_cap) break; - ret=vfd->vidioc_g_sliced_vbi_cap(file, fh, p); + memset(p, 0, sizeof(*p)); + p->type = type; + dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); + ret = vfd->vidioc_g_sliced_vbi_cap(file, fh, p); if (!ret) - dbgarg (cmd, "service_set=%d\n", p->service_set); + dbgarg2("service_set=%d\n", p->service_set); break; } case VIDIOC_LOG_STATUS: @@ -1763,13 +1893,23 @@ static int __video_do_ioctl(struct inode *inode, struct file *file, ret = vfd->vidioc_default(file, fh, cmd, arg); break; } + case VIDIOC_S_HW_FREQ_SEEK: + { + struct v4l2_hw_freq_seek *p = arg; + if (!vfd->vidioc_s_hw_freq_seek) + break; + dbgarg(cmd, + "tuner=%d, type=%d, seek_upward=%d, wrap_around=%d\n", + p->tuner, p->type, p->seek_upward, p->wrap_around); + ret = vfd->vidioc_s_hw_freq_seek(file, fh, p); + break; + } } /* switch */ if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) { - if (ret<0) { - printk("%s: err: on ", vfd->name); + if (ret < 0) { v4l_print_ioctl(vfd->name, cmd); - printk("\n"); + printk(KERN_CONT " error %d\n", ret); } } @@ -1871,8 +2011,55 @@ out: } EXPORT_SYMBOL(video_ioctl2); +/** + * get_index - assign stream number based on parent device + * @vdev: video_device to assign index number to, vdev->dev should be assigned + * @num: -1 if auto assign, requested number otherwise + * + * + * returns -ENFILE if num is already in use, a free index number if + * successful. + */ +static int get_index(struct video_device *vdev, int num) +{ + u32 used = 0; + const int max_index = sizeof(used) * 8 - 1; + int i; + + /* Currently a single v4l driver instance cannot create more than + 32 devices. + Increase to u64 or an array of u32 if more are needed. */ + if (num > max_index) { + printk(KERN_ERR "videodev: %s num is too large\n", __func__); + return -EINVAL; + } + + for (i = 0; i < VIDEO_NUM_DEVICES; i++) { + if (video_device[i] != NULL && + video_device[i] != vdev && + video_device[i]->dev == vdev->dev) { + used |= 1 << video_device[i]->index; + } + } + + if (num >= 0) { + if (used & (1 << num)) + return -ENFILE; + return num; + } + + i = ffz(used); + return i > max_index ? -ENFILE : i; +} + static const struct file_operations video_fops; +int video_register_device(struct video_device *vfd, int type, int nr) +{ + return video_register_device_index(vfd, type, nr, -1); +} +EXPORT_SYMBOL(video_register_device); + /** * video_register_device - register video4linux devices * @vfd: video device structure we want to register @@ -1898,7 +2085,8 @@ static const struct file_operations video_fops; * %VFL_TYPE_RADIO - A radio card */ -int video_register_device(struct video_device *vfd, int type, int nr) +int video_register_device_index(struct video_device *vfd, int type, int nr, + int index) { int i=0; int base; @@ -1955,20 +2143,29 @@ int video_register_device(struct video_device *vfd, int type, int nr) } video_device[i]=vfd; vfd->minor=i; + + ret = get_index(vfd, index); + vfd->index = ret; + mutex_unlock(&videodev_lock); + + if (ret < 0) { + printk(KERN_ERR "%s: get_index failed\n", __func__); + goto fail_minor; + } + mutex_init(&vfd->lock); /* sysfs class */ memset(&vfd->class_dev, 0x00, sizeof(vfd->class_dev)); - if (vfd->dev) - vfd->class_dev.parent = vfd->dev; vfd->class_dev.class = &video_class; vfd->class_dev.devt = MKDEV(VIDEO_MAJOR, vfd->minor); + if (vfd->dev) + vfd->class_dev.parent = vfd->dev; sprintf(vfd->class_dev.bus_id, "%s%d", name_base, i - base); ret = device_register(&vfd->class_dev); if (ret < 0) { - printk(KERN_ERR "%s: device_register failed\n", - __func__); + printk(KERN_ERR "%s: device_register failed\n", __func__); goto fail_minor; } @@ -1988,7 +2185,7 @@ fail_minor: mutex_unlock(&videodev_lock); return ret; } -EXPORT_SYMBOL(video_register_device); +EXPORT_SYMBOL(video_register_device_index); /** * video_unregister_device - unregister a video4linux device |