diff options
Diffstat (limited to 'drivers/media/video/v4l2-ioctl.c')
| -rw-r--r-- | drivers/media/video/v4l2-ioctl.c | 2178 |
1 files changed, 0 insertions, 2178 deletions
diff --git a/drivers/media/video/v4l2-ioctl.c b/drivers/media/video/v4l2-ioctl.c deleted file mode 100644 index dd9283fcb56..00000000000 --- a/drivers/media/video/v4l2-ioctl.c +++ /dev/null @@ -1,2178 +0,0 @@ -/* - * Video capture interface for Linux version 2 - * - * A generic framework to process V4L2 ioctl commands. - * - * 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@lxorguk.ukuu.org.uk> (version 1) - * Mauro Carvalho Chehab <mchehab@infradead.org> (version 2) - */ - -#include <linux/module.h> -#include <linux/slab.h> -#include <linux/types.h> -#include <linux/kernel.h> - -#define __OLD_VIDIOC_ /* To allow fixing old calls */ -#include <linux/videodev.h> -#include <linux/videodev2.h> - -#ifdef CONFIG_VIDEO_V4L1 -#include <linux/videodev.h> -#endif -#include <media/v4l2-common.h> -#include <media/v4l2-ioctl.h> -#include <media/v4l2-ctrls.h> -#include <media/v4l2-fh.h> -#include <media/v4l2-event.h> -#include <media/v4l2-chip-ident.h> - -#define dbgarg(cmd, fmt, 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...) \ - do { \ - if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) \ - printk(KERN_DEBUG "%s: " fmt, vfd->name, ## arg);\ - } while (0) - -#define dbgarg3(fmt, arg...) \ - do { \ - if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) \ - printk(KERN_CONT "%s: " fmt, vfd->name, ## arg);\ - } while (0) - -/* Zero out the end of the struct pointed to by p. Everthing after, but - * not including, the specified field is cleared. */ -#define CLEAR_AFTER_FIELD(p, field) \ - memset((u8 *)(p) + offsetof(typeof(*(p)), field) + sizeof((p)->field), \ - 0, sizeof(*(p)) - offsetof(typeof(*(p)), field) - sizeof((p)->field)) - -struct std_descr { - v4l2_std_id std; - const char *descr; -}; - -static const struct std_descr standards[] = { - { V4L2_STD_NTSC, "NTSC" }, - { V4L2_STD_NTSC_M, "NTSC-M" }, - { V4L2_STD_NTSC_M_JP, "NTSC-M-JP" }, - { V4L2_STD_NTSC_M_KR, "NTSC-M-KR" }, - { V4L2_STD_NTSC_443, "NTSC-443" }, - { V4L2_STD_PAL, "PAL" }, - { V4L2_STD_PAL_BG, "PAL-BG" }, - { V4L2_STD_PAL_B, "PAL-B" }, - { V4L2_STD_PAL_B1, "PAL-B1" }, - { V4L2_STD_PAL_G, "PAL-G" }, - { V4L2_STD_PAL_H, "PAL-H" }, - { V4L2_STD_PAL_I, "PAL-I" }, - { V4L2_STD_PAL_DK, "PAL-DK" }, - { V4L2_STD_PAL_D, "PAL-D" }, - { V4L2_STD_PAL_D1, "PAL-D1" }, - { V4L2_STD_PAL_K, "PAL-K" }, - { V4L2_STD_PAL_M, "PAL-M" }, - { V4L2_STD_PAL_N, "PAL-N" }, - { V4L2_STD_PAL_Nc, "PAL-Nc" }, - { V4L2_STD_PAL_60, "PAL-60" }, - { V4L2_STD_SECAM, "SECAM" }, - { V4L2_STD_SECAM_B, "SECAM-B" }, - { V4L2_STD_SECAM_G, "SECAM-G" }, - { V4L2_STD_SECAM_H, "SECAM-H" }, - { V4L2_STD_SECAM_DK, "SECAM-DK" }, - { V4L2_STD_SECAM_D, "SECAM-D" }, - { V4L2_STD_SECAM_K, "SECAM-K" }, - { V4L2_STD_SECAM_K1, "SECAM-K1" }, - { V4L2_STD_SECAM_L, "SECAM-L" }, - { V4L2_STD_SECAM_LC, "SECAM-Lc" }, - { 0, "Unknown" } -}; - -/* video4linux standard ID conversion to standard name - */ -const char *v4l2_norm_to_name(v4l2_std_id id) -{ - u32 myid = id; - int i; - - /* HACK: ppc32 architecture doesn't have __ucmpdi2 function to handle - 64 bit comparations. So, on that architecture, with some gcc - variants, compilation fails. Currently, the max value is 30bit wide. - */ - BUG_ON(myid != id); - - for (i = 0; standards[i].std; i++) - if (myid == standards[i].std) - break; - return standards[i].descr; -} -EXPORT_SYMBOL(v4l2_norm_to_name); - -/* Returns frame period for the given standard */ -void v4l2_video_std_frame_period(int id, struct v4l2_fract *frameperiod) -{ - if (id & V4L2_STD_525_60) { - frameperiod->numerator = 1001; - frameperiod->denominator = 30000; - } else { - frameperiod->numerator = 1; - frameperiod->denominator = 25; - } -} -EXPORT_SYMBOL(v4l2_video_std_frame_period); - -/* Fill in the fields of a v4l2_standard structure according to the - 'id' and 'transmission' parameters. Returns negative on error. */ -int v4l2_video_std_construct(struct v4l2_standard *vs, - int id, const char *name) -{ - vs->id = id; - v4l2_video_std_frame_period(id, &vs->frameperiod); - vs->framelines = (id & V4L2_STD_525_60) ? 525 : 625; - strlcpy(vs->name, name, sizeof(vs->name)); - return 0; -} -EXPORT_SYMBOL(v4l2_video_std_construct); - -/* ----------------------------------------------------------------- */ -/* some arrays for pretty-printing debug messages of enum types */ - -const char *v4l2_field_names[] = { - [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", -}; -EXPORT_SYMBOL(v4l2_field_names); - -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] = "vid-out-overlay", -}; -EXPORT_SYMBOL(v4l2_type_names); - -static const char *v4l2_memory_names[] = { - [V4L2_MEMORY_MMAP] = "mmap", - [V4L2_MEMORY_USERPTR] = "userptr", - [V4L2_MEMORY_OVERLAY] = "overlay", -}; - -#define prt_names(a, arr) ((((a) >= 0) && ((a) < ARRAY_SIZE(arr))) ? \ - arr[a] : "unknown") - -/* ------------------------------------------------------------------ */ -/* debug help functions */ - -#ifdef CONFIG_VIDEO_V4L1_COMPAT -static const char *v4l1_ioctls[] = { - [_IOC_NR(VIDIOCGCAP)] = "VIDIOCGCAP", - [_IOC_NR(VIDIOCGCHAN)] = "VIDIOCGCHAN", - [_IOC_NR(VIDIOCSCHAN)] = "VIDIOCSCHAN", - [_IOC_NR(VIDIOCGTUNER)] = "VIDIOCGTUNER", - [_IOC_NR(VIDIOCSTUNER)] = "VIDIOCSTUNER", - [_IOC_NR(VIDIOCGPICT)] = "VIDIOCGPICT", - [_IOC_NR(VIDIOCSPICT)] = "VIDIOCSPICT", - [_IOC_NR(VIDIOCCAPTURE)] = "VIDIOCCAPTURE", - [_IOC_NR(VIDIOCGWIN)] = "VIDIOCGWIN", - [_IOC_NR(VIDIOCSWIN)] = "VIDIOCSWIN", - [_IOC_NR(VIDIOCGFBUF)] = "VIDIOCGFBUF", - [_IOC_NR(VIDIOCSFBUF)] = "VIDIOCSFBUF", - [_IOC_NR(VIDIOCKEY)] = "VIDIOCKEY", - [_IOC_NR(VIDIOCGFREQ)] = "VIDIOCGFREQ", - [_IOC_NR(VIDIOCSFREQ)] = "VIDIOCSFREQ", - [_IOC_NR(VIDIOCGAUDIO)] = "VIDIOCGAUDIO", - [_IOC_NR(VIDIOCSAUDIO)] = "VIDIOCSAUDIO", - [_IOC_NR(VIDIOCSYNC)] = "VIDIOCSYNC", - [_IOC_NR(VIDIOCMCAPTURE)] = "VIDIOCMCAPTURE", - [_IOC_NR(VIDIOCGMBUF)] = "VIDIOCGMBUF", - [_IOC_NR(VIDIOCGUNIT)] = "VIDIOCGUNIT", - [_IOC_NR(VIDIOCGCAPTURE)] = "VIDIOCGCAPTURE", - [_IOC_NR(VIDIOCSCAPTURE)] = "VIDIOCSCAPTURE", - [_IOC_NR(VIDIOCSPLAYMODE)] = "VIDIOCSPLAYMODE", - [_IOC_NR(VIDIOCSWRITEMODE)] = "VIDIOCSWRITEMODE", - [_IOC_NR(VIDIOCGPLAYINFO)] = "VIDIOCGPLAYINFO", - [_IOC_NR(VIDIOCSMICROCODE)] = "VIDIOCSMICROCODE", - [_IOC_NR(VIDIOCGVBIFMT)] = "VIDIOCGVBIFMT", - [_IOC_NR(VIDIOCSVBIFMT)] = "VIDIOCSVBIFMT" -}; -#define V4L1_IOCTLS ARRAY_SIZE(v4l1_ioctls) -#endif - -static const char *v4l2_ioctls[] = { - [_IOC_NR(VIDIOC_QUERYCAP)] = "VIDIOC_QUERYCAP", - [_IOC_NR(VIDIOC_RESERVED)] = "VIDIOC_RESERVED", - [_IOC_NR(VIDIOC_ENUM_FMT)] = "VIDIOC_ENUM_FMT", - [_IOC_NR(VIDIOC_G_FMT)] = "VIDIOC_G_FMT", - [_IOC_NR(VIDIOC_S_FMT)] = "VIDIOC_S_FMT", - [_IOC_NR(VIDIOC_REQBUFS)] = "VIDIOC_REQBUFS", - [_IOC_NR(VIDIOC_QUERYBUF)] = "VIDIOC_QUERYBUF", - [_IOC_NR(VIDIOC_G_FBUF)] = "VIDIOC_G_FBUF", - [_IOC_NR(VIDIOC_S_FBUF)] = "VIDIOC_S_FBUF", - [_IOC_NR(VIDIOC_OVERLAY)] = "VIDIOC_OVERLAY", - [_IOC_NR(VIDIOC_QBUF)] = "VIDIOC_QBUF", - [_IOC_NR(VIDIOC_DQBUF)] = "VIDIOC_DQBUF", - [_IOC_NR(VIDIOC_STREAMON)] = "VIDIOC_STREAMON", - [_IOC_NR(VIDIOC_STREAMOFF)] = "VIDIOC_STREAMOFF", - [_IOC_NR(VIDIOC_G_PARM)] = "VIDIOC_G_PARM", - [_IOC_NR(VIDIOC_S_PARM)] = "VIDIOC_S_PARM", - [_IOC_NR(VIDIOC_G_STD)] = "VIDIOC_G_STD", - [_IOC_NR(VIDIOC_S_STD)] = "VIDIOC_S_STD", - [_IOC_NR(VIDIOC_ENUMSTD)] = "VIDIOC_ENUMSTD", - [_IOC_NR(VIDIOC_ENUMINPUT)] = "VIDIOC_ENUMINPUT", - [_IOC_NR(VIDIOC_G_CTRL)] = "VIDIOC_G_CTRL", - [_IOC_NR(VIDIOC_S_CTRL)] = "VIDIOC_S_CTRL", - [_IOC_NR(VIDIOC_G_TUNER)] = "VIDIOC_G_TUNER", - [_IOC_NR(VIDIOC_S_TUNER)] = "VIDIOC_S_TUNER", - [_IOC_NR(VIDIOC_G_AUDIO)] = "VIDIOC_G_AUDIO", - [_IOC_NR(VIDIOC_S_AUDIO)] = "VIDIOC_S_AUDIO", - [_IOC_NR(VIDIOC_QUERYCTRL)] = "VIDIOC_QUERYCTRL", - [_IOC_NR(VIDIOC_QUERYMENU)] = "VIDIOC_QUERYMENU", - [_IOC_NR(VIDIOC_G_INPUT)] = "VIDIOC_G_INPUT", - [_IOC_NR(VIDIOC_S_INPUT)] = "VIDIOC_S_INPUT", - [_IOC_NR(VIDIOC_G_OUTPUT)] = "VIDIOC_G_OUTPUT", - [_IOC_NR(VIDIOC_S_OUTPUT)] = "VIDIOC_S_OUTPUT", - [_IOC_NR(VIDIOC_ENUMOUTPUT)] = "VIDIOC_ENUMOUTPUT", - [_IOC_NR(VIDIOC_G_AUDOUT)] = "VIDIOC_G_AUDOUT", - [_IOC_NR(VIDIOC_S_AUDOUT)] = "VIDIOC_S_AUDOUT", - [_IOC_NR(VIDIOC_G_MODULATOR)] = "VIDIOC_G_MODULATOR", - [_IOC_NR(VIDIOC_S_MODULATOR)] = "VIDIOC_S_MODULATOR", - [_IOC_NR(VIDIOC_G_FREQUENCY)] = "VIDIOC_G_FREQUENCY", - [_IOC_NR(VIDIOC_S_FREQUENCY)] = "VIDIOC_S_FREQUENCY", - [_IOC_NR(VIDIOC_CROPCAP)] = "VIDIOC_CROPCAP", - [_IOC_NR(VIDIOC_G_CROP)] = "VIDIOC_G_CROP", - [_IOC_NR(VIDIOC_S_CROP)] = "VIDIOC_S_CROP", - [_IOC_NR(VIDIOC_G_JPEGCOMP)] = "VIDIOC_G_JPEGCOMP", - [_IOC_NR(VIDIOC_S_JPEGCOMP)] = "VIDIOC_S_JPEGCOMP", - [_IOC_NR(VIDIOC_QUERYSTD)] = "VIDIOC_QUERYSTD", - [_IOC_NR(VIDIOC_TRY_FMT)] = "VIDIOC_TRY_FMT", - [_IOC_NR(VIDIOC_ENUMAUDIO)] = "VIDIOC_ENUMAUDIO", - [_IOC_NR(VIDIOC_ENUMAUDOUT)] = "VIDIOC_ENUMAUDOUT", - [_IOC_NR(VIDIOC_G_PRIORITY)] = "VIDIOC_G_PRIORITY", - [_IOC_NR(VIDIOC_S_PRIORITY)] = "VIDIOC_S_PRIORITY", - [_IOC_NR(VIDIOC_G_SLICED_VBI_CAP)] = "VIDIOC_G_SLICED_VBI_CAP", - [_IOC_NR(VIDIOC_LOG_STATUS)] = "VIDIOC_LOG_STATUS", - [_IOC_NR(VIDIOC_G_EXT_CTRLS)] = "VIDIOC_G_EXT_CTRLS", - [_IOC_NR(VIDIOC_S_EXT_CTRLS)] = "VIDIOC_S_EXT_CTRLS", - [_IOC_NR(VIDIOC_TRY_EXT_CTRLS)] = "VIDIOC_TRY_EXT_CTRLS", -#if 1 - [_IOC_NR(VIDIOC_ENUM_FRAMESIZES)] = "VIDIOC_ENUM_FRAMESIZES", - [_IOC_NR(VIDIOC_ENUM_FRAMEINTERVALS)] = "VIDIOC_ENUM_FRAMEINTERVALS", - [_IOC_NR(VIDIOC_G_ENC_INDEX)] = "VIDIOC_G_ENC_INDEX", - [_IOC_NR(VIDIOC_ENCODER_CMD)] = "VIDIOC_ENCODER_CMD", - [_IOC_NR(VIDIOC_TRY_ENCODER_CMD)] = "VIDIOC_TRY_ENCODER_CMD", - - [_IOC_NR(VIDIOC_DBG_S_REGISTER)] = "VIDIOC_DBG_S_REGISTER", - [_IOC_NR(VIDIOC_DBG_G_REGISTER)] = "VIDIOC_DBG_G_REGISTER", - - [_IOC_NR(VIDIOC_DBG_G_CHIP_IDENT)] = "VIDIOC_DBG_G_CHIP_IDENT", - [_IOC_NR(VIDIOC_S_HW_FREQ_SEEK)] = "VIDIOC_S_HW_FREQ_SEEK", -#endif - [_IOC_NR(VIDIOC_ENUM_DV_PRESETS)] = "VIDIOC_ENUM_DV_PRESETS", - [_IOC_NR(VIDIOC_S_DV_PRESET)] = "VIDIOC_S_DV_PRESET", - [_IOC_NR(VIDIOC_G_DV_PRESET)] = "VIDIOC_G_DV_PRESET", - [_IOC_NR(VIDIOC_QUERY_DV_PRESET)] = "VIDIOC_QUERY_DV_PRESET", - [_IOC_NR(VIDIOC_S_DV_TIMINGS)] = "VIDIOC_S_DV_TIMINGS", - [_IOC_NR(VIDIOC_G_DV_TIMINGS)] = "VIDIOC_G_DV_TIMINGS", - [_IOC_NR(VIDIOC_DQEVENT)] = "VIDIOC_DQEVENT", - [_IOC_NR(VIDIOC_SUBSCRIBE_EVENT)] = "VIDIOC_SUBSCRIBE_EVENT", - [_IOC_NR(VIDIOC_UNSUBSCRIBE_EVENT)] = "VIDIOC_UNSUBSCRIBE_EVENT", -}; -#define V4L2_IOCTLS ARRAY_SIZE(v4l2_ioctls) - -/* Common ioctl debug function. This function can be used by - external ioctl messages as well as internal V4L ioctl */ -void v4l_printk_ioctl(unsigned int cmd) -{ - char *dir, *type; - - switch (_IOC_TYPE(cmd)) { - case 'd': - type = "v4l2_int"; - break; -#ifdef CONFIG_VIDEO_V4L1_COMPAT - case 'v': - if (_IOC_NR(cmd) >= V4L1_IOCTLS) { - type = "v4l1"; - break; - } - printk("%s", v4l1_ioctls[_IOC_NR(cmd)]); - return; -#endif - case 'V': - if (_IOC_NR(cmd) >= V4L2_IOCTLS) { - type = "v4l2"; - break; - } - printk("%s", v4l2_ioctls[_IOC_NR(cmd)]); - return; - default: - type = "unknown"; - } - - switch (_IOC_DIR(cmd)) { - case _IOC_NONE: dir = "--"; break; - case _IOC_READ: dir = "r-"; break; - case _IOC_WRITE: dir = "-w"; break; - case _IOC_READ | _IOC_WRITE: dir = "rw"; break; - default: dir = "*ERR*"; break; - } - printk("%s ioctl '%c', dir=%s, #%d (0x%08x)", - type, _IOC_TYPE(cmd), dir, _IOC_NR(cmd), cmd); -} -EXPORT_SYMBOL(v4l_printk_ioctl); - -/* - * 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 - */ -long -video_usercopy(struct file *file, unsigned int cmd, unsigned long arg, - v4l2_kioctl func) -{ - char sbuf[128]; - void *mbuf = NULL; - void *parg = NULL; - long 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(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; -} -EXPORT_SYMBOL(video_usercopy); - -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), - (long)p->timestamp.tv_usec, - p->index, - prt_names(p->type, v4l2_type_names), - 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), - 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 && !c->controls[i].size) - printk(KERN_CONT " id/val=0x%x/0x%x", - c->controls[i].id, c->controls[i].value); - else - printk(KERN_CONT " id=0x%x,size=%u", - c->controls[i].id, c->controls[i].size); - } - 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; - - /* 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(const struct v4l2_ioctl_ops *ops, enum v4l2_buf_type type) -{ - if (ops == NULL) - return -EINVAL; - - switch (type) { - case V4L2_BUF_TYPE_VIDEO_CAPTURE: - if (ops->vidioc_g_fmt_vid_cap) - return 0; - break; - case V4L2_BUF_TYPE_VIDEO_OVERLAY: - if (ops->vidioc_g_fmt_vid_overlay) - return 0; - break; - case V4L2_BUF_TYPE_VIDEO_OUTPUT: - if (ops->vidioc_g_fmt_vid_out) - return 0; - break; - case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: - if (ops->vidioc_g_fmt_vid_out_overlay) - return 0; - break; - case V4L2_BUF_TYPE_VBI_CAPTURE: - if (ops->vidioc_g_fmt_vbi_cap) - return 0; - break; - case V4L2_BUF_TYPE_VBI_OUTPUT: - if (ops->vidioc_g_fmt_vbi_out) - return 0; - break; - case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: - if (ops->vidioc_g_fmt_sliced_vbi_cap) - return 0; - break; - case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: - if (ops->vidioc_g_fmt_sliced_vbi_out) - return 0; - break; - case V4L2_BUF_TYPE_PRIVATE: - if (ops->vidioc_g_fmt_type_private) - return 0; - break; - } - return -EINVAL; -} - -static long __video_do_ioctl(struct file *file, - unsigned int cmd, void *arg) -{ - struct video_device *vfd = video_devdata(file); - const struct v4l2_ioctl_ops *ops = vfd->ioctl_ops; - void *fh = file->private_data; - long ret = -EINVAL; - - if (ops == NULL) { - printk(KERN_WARNING "videodev: \"%s\" has no ioctl_ops.\n", - vfd->name); - return -EINVAL; - } - -#ifdef CONFIG_VIDEO_V4L1_COMPAT - /******************************************************** - All other V4L1 calls are handled by v4l1_compat module. - Those calls will be translated into V4L2 calls, and - __video_do_ioctl will be called again, with one or more - V4L2 ioctls. - ********************************************************/ - if (_IOC_TYPE(cmd) == 'v' && cmd != VIDIOCGMBUF && - _IOC_NR(cmd) < BASE_VIDIOCPRIVATE) { - return v4l_compat_translate_ioctl(file, cmd, arg, - __video_do_ioctl); - } -#endif - - if ((vfd->debug & V4L2_DEBUG_IOCTL) && - !(vfd->debug & V4L2_DEBUG_IOCTL_ARG)) { - v4l_print_ioctl(vfd->name, cmd); - printk(KERN_CONT "\n"); - } - - switch (cmd) { - -#ifdef CONFIG_VIDEO_V4L1_COMPAT - /*********************************************************** - Handles calls to the obsoleted V4L1 API - Due to the nature of VIDIOCGMBUF, each driver that supports - V4L1 should implement its own handler for this ioctl. - ***********************************************************/ - - /* --- streaming capture ------------------------------------- */ - case VIDIOCGMBUF: - { - struct video_mbuf *p = arg; - - if (!ops->vidiocgmbuf) - break; - ret = ops->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 - - /* --- capabilities ------------------------------------------ */ - case VIDIOC_QUERYCAP: - { - struct v4l2_capability *cap = (struct v4l2_capability *)arg; - - if (!ops->vidioc_querycap) - break; - - ret = ops->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 (!ops->vidioc_g_priority) - break; - ret = ops->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 (!ops->vidioc_s_priority) - break; - dbgarg(cmd, "setting priority to %d\n", *p); - ret = ops->vidioc_s_priority(file, fh, *p); - break; - } - - /* --- capture ioctls ---------------------------------------- */ - case VIDIOC_ENUM_FMT: - { - struct v4l2_fmtdesc *f = arg; - - switch (f->type) { - case V4L2_BUF_TYPE_VIDEO_CAPTURE: - if (ops->vidioc_enum_fmt_vid_cap) - ret = ops->vidioc_enum_fmt_vid_cap(file, fh, f); - break; - case V4L2_BUF_TYPE_VIDEO_OVERLAY: - if (ops->vidioc_enum_fmt_vid_overlay) - ret = ops->vidioc_enum_fmt_vid_overlay(file, - fh, f); - break; - case V4L2_BUF_TYPE_VIDEO_OUTPUT: - if (ops->vidioc_enum_fmt_vid_out) - ret = ops->vidioc_enum_fmt_vid_out(file, fh, f); - break; - case V4L2_BUF_TYPE_PRIVATE: - if (ops->vidioc_enum_fmt_type_private) - ret = ops->vidioc_enum_fmt_type_private(file, - fh, f); - break; - default: - 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; - - /* FIXME: Should be one dump per type */ - dbgarg(cmd, "type=%s\n", prt_names(f->type, v4l2_type_names)); - - switch (f->type) { - case V4L2_BUF_TYPE_VIDEO_CAPTURE: - if (ops->vidioc_g_fmt_vid_cap) - ret = ops->vidioc_g_fmt_vid_cap(file, fh, f); - if (!ret) - v4l_print_pix_fmt(vfd, &f->fmt.pix); - break; - case V4L2_BUF_TYPE_VIDEO_OVERLAY: - if (ops->vidioc_g_fmt_vid_overlay) - ret = ops->vidioc_g_fmt_vid_overlay(file, - fh, f); - break; - case V4L2_BUF_TYPE_VIDEO_OUTPUT: - if (ops->vidioc_g_fmt_vid_out) - ret = ops->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 (ops->vidioc_g_fmt_vid_out_overlay) - ret = ops->vidioc_g_fmt_vid_out_overlay(file, - fh, f); - break; - case V4L2_BUF_TYPE_VBI_CAPTURE: - if (ops->vidioc_g_fmt_vbi_cap) - ret = ops->vidioc_g_fmt_vbi_cap(file, fh, f); - break; - case V4L2_BUF_TYPE_VBI_OUTPUT: - if (ops->vidioc_g_fmt_vbi_out) - ret = ops->vidioc_g_fmt_vbi_out(file, fh, f); - break; - case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: - if (ops->vidioc_g_fmt_sliced_vbi_cap) - ret = ops->vidioc_g_fmt_sliced_vbi_cap(file, - fh, f); - break; - case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: - if (ops->vidioc_g_fmt_sliced_vbi_out) - ret = ops->vidioc_g_fmt_sliced_vbi_out(file, - fh, f); - break; - case V4L2_BUF_TYPE_PRIVATE: - if (ops->vidioc_g_fmt_type_private) - ret = ops->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)); - - switch (f->type) { - case V4L2_BUF_TYPE_VIDEO_CAPTURE: - CLEAR_AFTER_FIELD(f, fmt.pix); - v4l_print_pix_fmt(vfd, &f->fmt.pix); - if (ops->vidioc_s_fmt_vid_cap) - ret = ops->vidioc_s_fmt_vid_cap(file, fh, f); - break; - case V4L2_BUF_TYPE_VIDEO_OVERLAY: - CLEAR_AFTER_FIELD(f, fmt.win); - if (ops->vidioc_s_fmt_vid_overlay) - ret = ops->vidioc_s_fmt_vid_overlay(file, - fh, f); - break; - case V4L2_BUF_TYPE_VIDEO_OUTPUT: - CLEAR_AFTER_FIELD(f, fmt.pix); - v4l_print_pix_fmt(vfd, &f->fmt.pix); - if (ops->vidioc_s_fmt_vid_out) - ret = ops->vidioc_s_fmt_vid_out(file, fh, f); - break; - case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: - CLEAR_AFTER_FIELD(f, fmt.win); - if (ops->vidioc_s_fmt_vid_out_overlay) - ret = ops->vidioc_s_fmt_vid_out_overlay(file, - fh, f); - break; - case V4L2_BUF_TYPE_VBI_CAPTURE: - CLEAR_AFTER_FIELD(f, fmt.vbi); - if (ops->vidioc_s_fmt_vbi_cap) - ret = ops->vidioc_s_fmt_vbi_cap(file, fh, f); - break; - case V4L2_BUF_TYPE_VBI_OUTPUT: - CLEAR_AFTER_FIELD(f, fmt.vbi); - if (ops->vidioc_s_fmt_vbi_out) - ret = ops->vidioc_s_fmt_vbi_out(file, fh, f); - break; - case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: - CLEAR_AFTER_FIELD(f, fmt.sliced); - if (ops->vidioc_s_fmt_sliced_vbi_cap) - ret = ops->vidioc_s_fmt_sliced_vbi_cap(file, - fh, f); - break; - case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: - CLEAR_AFTER_FIELD(f, fmt.sliced); - if (ops->vidioc_s_fmt_sliced_vbi_out) - ret = ops->vidioc_s_fmt_sliced_vbi_out(file, - fh, f); - break; - case V4L2_BUF_TYPE_PRIVATE: - /* CLEAR_AFTER_FIELD(f, fmt.raw_data); <- does nothing */ - if (ops->vidioc_s_fmt_type_private) - ret = ops->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)); - switch (f->type) { - case V4L2_BUF_TYPE_VIDEO_CAPTURE: - CLEAR_AFTER_FIELD(f, fmt.pix); - if (ops->vidioc_try_fmt_vid_cap) - ret = ops->vidioc_try_fmt_vid_cap(file, fh, f); - if (!ret) - v4l_print_pix_fmt(vfd, &f->fmt.pix); - break; - case V4L2_BUF_TYPE_VIDEO_OVERLAY: - CLEAR_AFTER_FIELD(f, fmt.win); - if (ops->vidioc_try_fmt_vid_overlay) - ret = ops->vidioc_try_fmt_vid_overlay(file, - fh, f); - break; - case V4L2_BUF_TYPE_VIDEO_OUTPUT: - CLEAR_AFTER_FIELD(f, fmt.pix); - if (ops->vidioc_try_fmt_vid_out) - ret = ops->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: - CLEAR_AFTER_FIELD(f, fmt.win); - if (ops->vidioc_try_fmt_vid_out_overlay) - ret = ops->vidioc_try_fmt_vid_out_overlay(file, - fh, f); - break; - case V4L2_BUF_TYPE_VBI_CAPTURE: - CLEAR_AFTER_FIELD(f, fmt.vbi); - if (ops->vidioc_try_fmt_vbi_cap) - ret = ops->vidioc_try_fmt_vbi_cap(file, fh, f); - break; - case V4L2_BUF_TYPE_VBI_OUTPUT: - CLEAR_AFTER_FIELD(f, fmt.vbi); - if (ops->vidioc_try_fmt_vbi_out) - ret = ops->vidioc_try_fmt_vbi_out(file, fh, f); - break; - case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: - CLEAR_AFTER_FIELD(f, fmt.sliced); - if (ops->vidioc_try_fmt_sliced_vbi_cap) - ret = ops->vidioc_try_fmt_sliced_vbi_cap(file, - fh, f); - break; - case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: - CLEAR_AFTER_FIELD(f, fmt.sliced); - if (ops->vidioc_try_fmt_sliced_vbi_out) - ret = ops->vidioc_try_fmt_sliced_vbi_out(file, - fh, f); - break; - case V4L2_BUF_TYPE_PRIVATE: - /* CLEAR_AFTER_FIELD(f, fmt.raw_data); <- does nothing */ - if (ops->vidioc_try_fmt_type_private) - ret = ops->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 (!ops->vidioc_reqbufs) - break; - ret = check_fmt(ops, p->type); - if (ret) - break; - - if (p->type < V4L2_BUF_TYPE_PRIVATE) - CLEAR_AFTER_FIELD(p, memory); - - ret = ops->vidioc_reqbufs(file, fh, p); - dbgarg(cmd, "count=%d, type=%s, memory=%s\n", - p->count, - prt_names(p->type, v4l2_type_names), - prt_names(p->memory, v4l2_memory_names)); - break; - } - case VIDIOC_QUERYBUF: - { - struct v4l2_buffer *p = arg; - - if (!ops->vidioc_querybuf) - break; - ret = check_fmt(ops, p->type); - if (ret) - break; - - ret = ops->vidioc_querybuf(file, fh, p); - if (!ret) - dbgbuf(cmd, vfd, p); - break; - } - case VIDIOC_QBUF: - { - struct v4l2_buffer *p = arg; - - if (!ops->vidioc_qbuf) - break; - ret = check_fmt(ops, p->type); - if (ret) - break; - - ret = ops->vidioc_qbuf(file, fh, p); - if (!ret) - dbgbuf(cmd, vfd, p); - break; - } - case VIDIOC_DQBUF: - { - struct v4l2_buffer *p = arg; - - if (!ops->vidioc_dqbuf) - break; - ret = check_fmt(ops, p->type); - if (ret) - break; - - ret = ops->vidioc_dqbuf(file, fh, p); - if (!ret) - dbgbuf(cmd, vfd, p); - break; - } - case VIDIOC_OVERLAY: - { - int *i = arg; - - if (!ops->vidioc_overlay) - break; - dbgarg(cmd, "value=%d\n", *i); - ret = ops->vidioc_overlay(file, fh, *i); - break; - } - case VIDIOC_G_FBUF: - { - struct v4l2_framebuffer *p = arg; - - if (!ops->vidioc_g_fbuf) - break; - ret = ops->vidioc_g_fbuf(file, fh, arg); - if (!ret) { - 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); - } - break; - } - case VIDIOC_S_FBUF: - { - struct v4l2_framebuffer *p = arg; - - if (!ops->vidioc_s_fbuf) - break; - 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 = ops->vidioc_s_fbuf(file, fh, arg); - break; - } - case VIDIOC_STREAMON: - { - enum v4l2_buf_type i = *(int *)arg; - - if (!ops->vidioc_streamon) - break; - dbgarg(cmd, "type=%s\n", prt_names(i, v4l2_type_names)); - ret = ops->vidioc_streamon(file, fh, i); - break; - } - case VIDIOC_STREAMOFF: - { - enum v4l2_buf_type i = *(int *)arg; - - if (!ops->vidioc_streamoff) - break; - dbgarg(cmd, "type=%s\n", prt_names(i, v4l2_type_names)); - ret = ops->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, j = 0; - const char *descr = ""; - - /* Return norm array in a canonical way */ - for (i = 0; i <= index && id; i++) { - /* last std value in the standards array is 0, so this - while always ends there since (id & 0) == 0. */ - while ((id & standards[j].std) != standards[j].std) - j++; - curr_id = standards[j].std; - descr = standards[j].descr; - j++; - if (curr_id == 0) - break; - if (curr_id != V4L2_STD_PAL && - curr_id != V4L2_STD_SECAM && - curr_id != V4L2_STD_NTSC) - id &= ~curr_id; - } - if (i <= index) - break; - - v4l2_video_std_construct(p, curr_id, descr); - - 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, - p->frameperiod.denominator, - p->framelines); - - ret = 0; - break; - } - case VIDIOC_G_STD: - { - v4l2_std_id *id = arg; - - ret = 0; - /* Calls the specific handler */ - if (ops->vidioc_g_std) - ret = ops->vidioc_g_std(file, fh, id); - else if (vfd->current_norm) - *id = vfd->current_norm; - else - ret = -EINVAL; - - 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, "std=%08Lx\n", (long long unsigned)*id); - - norm = (*id) & vfd->tvnorms; - if (vfd->tvnorms && !norm) /* Check if std is supported */ - break; - - /* Calls the specific handler */ - if (ops->vidioc_s_std) - ret = ops->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 (!ops->vidioc_querystd) - break; - ret = ops->vidioc_querystd(file, fh, arg); - if (!ret) - dbgarg(cmd, "detected std=%08Lx\n", - (unsigned long long)*p); - break; - } - /* ------ input switching ---------- */ - /* FIXME: Inputs can be handled inside videodev2 */ - case VIDIOC_ENUMINPUT: - { - struct v4l2_input *p = arg; - - /* - * We set the flags for CAP_PRESETS, CAP_CUSTOM_TIMINGS & - * CAP_STD here based on ioctl handler provided by the - * driver. If the driver doesn't support these - * for a specific input, it must override these flags. - */ - if (ops->vidioc_s_std) - p->capabilities |= V4L2_IN_CAP_STD; - if (ops->vidioc_s_dv_preset) - p->capabilities |= V4L2_IN_CAP_PRESETS; - if (ops->vidioc_s_dv_timings) - p->capabilities |= V4L2_IN_CAP_CUSTOM_TIMINGS; - - if (!ops->vidioc_enum_input) - break; - - ret = ops->vidioc_enum_input(file, fh, p); - if (!ret) - dbgarg(cmd, "index=%d, name=%s, type=%d, " - "audioset=%d, " - "tuner=%d, std=%08Lx, 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 (!ops->vidioc_g_input) - break; - ret = ops->vidioc_g_input(file, fh, i); - if (!ret) - dbgarg(cmd, "value=%d\n", *i); - break; - } - case VIDIOC_S_INPUT: - { - unsigned int *i = arg; - - if (!ops->vidioc_s_input) - break; - dbgarg(cmd, "value=%d\n", *i); - ret = ops->vidioc_s_input(file, fh, *i); - break; - } - - /* ------ output switching ---------- */ - case VIDIOC_ENUMOUTPUT: - { - struct v4l2_output *p = arg; - - if (!ops->vidioc_enum_output) - break; - - /* - * We set the flags for CAP_PRESETS, CAP_CUSTOM_TIMINGS & - * CAP_STD here based on ioctl handler provided by the - * driver. If the driver doesn't support these - * for a specific output, it must override these flags. - */ - if (ops->vidioc_s_std) - p->capabilities |= V4L2_OUT_CAP_STD; - if (ops->vidioc_s_dv_preset) - p->capabilities |= V4L2_OUT_CAP_PRESETS; - if (ops->vidioc_s_dv_timings) - p->capabilities |= V4L2_OUT_CAP_CUSTOM_TIMINGS; - - ret = ops->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; - - if (!ops->vidioc_g_output) - break; - ret = ops->vidioc_g_output(file, fh, i); - if (!ret) - dbgarg(cmd, "value=%d\n", *i); - break; - } - case VIDIOC_S_OUTPUT: - { - unsigned int *i = arg; - - if (!ops->vidioc_s_output) - break; - dbgarg(cmd, "value=%d\n", *i); - ret = ops->vidioc_s_output(file, fh, *i); - break; - } - - /* --- controls ---------------------------------------------- */ - case VIDIOC_QUERYCTRL: - { - struct v4l2_queryctrl *p = arg; - - if (vfd->ctrl_handler) - ret = v4l2_queryctrl(vfd->ctrl_handler, p); - else if (ops->vidioc_queryctrl) - ret = ops->vidioc_queryctrl(file, fh, p); - else - break; - if (!ret) - 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->ctrl_handler) - ret = v4l2_g_ctrl(vfd->ctrl_handler, p); - else if (ops->vidioc_g_ctrl) - ret = ops->vidioc_g_ctrl(file, fh, p); - else if (ops->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 = ops->vidioc_g_ext_ctrls(file, fh, &ctrls); - if (ret == 0) - p->value = ctrl.value; - } - } else - break; - if (!ret) - 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->ctrl_handler && - !ops->vidioc_s_ctrl && !ops->vidioc_s_ext_ctrls) - break; - - dbgarg(cmd, "id=0x%x, value=%d\n", p->id, p->value); - - if (vfd->ctrl_handler) { - ret = v4l2_s_ctrl(vfd->ctrl_handler, p); - break; - } - if (ops->vidioc_s_ctrl) { - ret = ops->vidioc_s_ctrl(file, fh, p); - break; - } - if (!ops->vidioc_s_ext_ctrls) - break; - - 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 = ops->vidioc_s_ext_ctrls(file, fh, &ctrls); - break; - } - case VIDIOC_G_EXT_CTRLS: - { - struct v4l2_ext_controls *p = arg; - - p->error_idx = p->count; - if (vfd->ctrl_handler) - ret = v4l2_g_ext_ctrls(vfd->ctrl_handler, p); - else if (ops->vidioc_g_ext_ctrls && check_ext_ctrls(p, 0)) - ret = ops->vidioc_g_ext_ctrls(file, fh, p); - else - break; - v4l_print_ext_ctrls(cmd, vfd, p, !ret); - break; - } - case VIDIOC_S_EXT_CTRLS: - { - struct v4l2_ext_controls *p = arg; - - p->error_idx = p->count; - if (!vfd->ctrl_handler && !ops->vidioc_s_ext_ctrls) - break; - v4l_print_ext_ctrls(cmd, vfd, p, 1); - if (vfd->ctrl_handler) - ret = v4l2_s_ext_ctrls(vfd->ctrl_handler, p); - else if (check_ext_ctrls(p, 0)) - ret = ops->vidioc_s_ext_ctrls(file, fh, p); - break; - } - case VIDIOC_TRY_EXT_CTRLS: - { - struct v4l2_ext_controls *p = arg; - - p->error_idx = p->count; - if (!vfd->ctrl_handler && !ops->vidioc_try_ext_ctrls) - break; - v4l_print_ext_ctrls(cmd, vfd, p, 1); - if (vfd->ctrl_handler) - ret = v4l2_try_ext_ctrls(vfd->ctrl_handler, p); - else if (check_ext_ctrls(p, 0)) - ret = ops->vidioc_try_ext_ctrls(file, fh, p); - break; - } - case VIDIOC_QUERYMENU: - { - struct v4l2_querymenu *p = arg; - - if (vfd->ctrl_handler) - ret = v4l2_querymenu(vfd->ctrl_handler, p); - else if (ops->vidioc_querymenu) - ret = ops->vidioc_querymenu(file, fh, p); - else - break; - if (!ret) - 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; - - if (!ops->vidioc_enumaudio) - break; - ret = ops->vidioc_enumaudio(file, fh, p); - if (!ret) - 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; - - if (!ops->vidioc_g_audio) - break; - - ret = ops->vidioc_g_audio(file, fh, p); - if (!ret) - 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; - - if (!ops->vidioc_s_audio) - break; - dbgarg(cmd, "index=%d, name=%s, capability=0x%x, " - "mode=0x%x\n", p->index, p->name, - p->capability, p->mode); - ret = ops->vidioc_s_audio(file, fh, p); - break; - } - case VIDIOC_ENUMAUDOUT: - { - struct v4l2_audioout *p = arg; - - if (!ops->vidioc_enumaudout) - break; - dbgarg(cmd, "Enum for index=%d\n", p->index); - ret = ops->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 (!ops->vidioc_g_audout) - break; - - ret = ops->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 (!ops->vidioc_s_audout) - break; - dbgarg(cmd, "index=%d, name=%s, capability=%d, " - "mode=%d\n", p->index, p->name, - p->capability, p->mode); - - ret = ops->vidioc_s_audout(file, fh, p); - break; - } - case VIDIOC_G_MODULATOR: - { - struct v4l2_modulator *p = arg; - - if (!ops->vidioc_g_modulator) - break; - ret = ops->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 (!ops->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 = ops->vidioc_s_modulator(file, fh, p); - break; - } - case VIDIOC_G_CROP: - { - struct v4l2_crop *p = arg; - - if (!ops->vidioc_g_crop) - break; - - dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); - ret = ops->vidioc_g_crop(file, fh, p); - if (!ret) - dbgrect(vfd, "", &p->c); - break; - } - case VIDIOC_S_CROP: - { - struct v4l2_crop *p = arg; - - if (!ops->vidioc_s_crop) - break; - dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); - dbgrect(vfd, "", &p->c); - ret = ops->vidioc_s_crop(file, fh, p); - break; - } - case VIDIOC_CROPCAP: - { - struct v4l2_cropcap *p = arg; - - /*FIXME: Should also show v4l2_fract pixelaspect */ - if (!ops->vidioc_cropcap) - break; - - dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); - ret = ops->vidioc_cropcap(file, fh, p); - if (!ret) { - dbgrect(vfd, "bounds ", &p->bounds); - dbgrect(vfd, "defrect ", &p->defrect); - } - break; - } - case VIDIOC_G_JPEGCOMP: - { - struct v4l2_jpegcompression *p = arg; - - if (!ops->vidioc_g_jpegcomp) - break; - - ret = ops->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 (!ops->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 = ops->vidioc_s_jpegcomp(file, fh, p); - break; - } - case VIDIOC_G_ENC_INDEX: - { - struct v4l2_enc_idx *p = arg; - - if (!ops->vidioc_g_enc_index) - break; - ret = ops->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 (!ops->vidioc_encoder_cmd) - break; - ret = ops->vidioc_encoder_cmd(file, fh, p); - if (!ret) - dbgarg(cmd, "cmd=%d, flags=%x\n", p->cmd, p->flags); - break; - } - case VIDIOC_TRY_ENCODER_CMD: - { - struct v4l2_encoder_cmd *p = arg; - - if (!ops->vidioc_try_encoder_cmd) - break; - ret = ops->vidioc_try_encoder_cmd(file, fh, p); - if (!ret) - dbgarg(cmd, "cmd=%d, flags=%x\n", p->cmd, p->flags); - break; - } - case VIDIOC_G_PARM: - { - struct v4l2_streamparm *p = arg; - - if (ops->vidioc_g_parm) { - ret = check_fmt(ops, p->type); - if (ret) - break; - ret = ops->vidioc_g_parm(file, fh, p); - } else { - v4l2_std_id std = vfd->current_norm; - - if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) - break; - - ret = 0; - if (ops->vidioc_g_std) - ret = ops->vidioc_g_std(file, fh, &std); - else if (std == 0) - ret = -EINVAL; - if (ret == 0) - v4l2_video_std_frame_period(std, - &p->parm.capture.timeperframe); - } - - dbgarg(cmd, "type=%d\n", p->type); - break; - } - case VIDIOC_S_PARM: - { - struct v4l2_streamparm *p = arg; - - if (!ops->vidioc_s_parm) - break; - ret = check_fmt(ops, p->type); - if (ret) - break; - - dbgarg(cmd, "type=%d\n", p->type); - ret = ops->vidioc_s_parm(file, fh, p); - break; - } - case VIDIOC_G_TUNER: - { - struct v4l2_tuner *p = arg; - - if (!ops->vidioc_g_tuner) - break; - - ret = ops->vidioc_g_tuner(file, fh, p); - if (!ret) - 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); - break; - } - case VIDIOC_S_TUNER: - { - struct v4l2_tuner *p = arg; - - if (!ops->vidioc_s_tuner) - break; - 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 = ops->vidioc_s_tuner(file, fh, p); - break; - } - case VIDIOC_G_FREQUENCY: - { - struct v4l2_frequency *p = arg; - - if (!ops->vidioc_g_frequency) - break; - - ret = ops->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 (!ops->vidioc_s_frequency) - break; - dbgarg(cmd, "tuner=%d, type=%d, frequency=%d\n", - p->tuner, p->type, p->frequency); - ret = ops->vidioc_s_frequency(file, fh, p); - break; - } - case VIDIOC_G_SLICED_VBI_CAP: - { - struct v4l2_sliced_vbi_cap *p = arg; - - if (!ops->vidioc_g_sliced_vbi_cap) - break; - - /* Clear up to type, everything after type is zerod already */ - memset(p, 0, offsetof(struct v4l2_sliced_vbi_cap, type)); - - dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); - ret = ops->vidioc_g_sliced_vbi_cap(file, fh, p); - if (!ret) - dbgarg2("service_set=%d\n", p->service_set); - break; - } - case VIDIOC_LOG_STATUS: - { - if (!ops->vidioc_log_status) - break; - ret = ops->vidioc_log_status(file, fh); - break; - } -#ifdef CONFIG_VIDEO_ADV_DEBUG - case VIDIOC_DBG_G_REGISTER: - { - struct v4l2_dbg_register *p = arg; - - if (!capable(CAP_SYS_ADMIN)) - ret = -EPERM; - else if (ops->vidioc_g_register) - ret = ops->vidioc_g_register(file, fh, p); - break; - } - case VIDIOC_DBG_S_REGISTER: - { - struct v4l2_dbg_register *p = arg; - - if (!capable(CAP_SYS_ADMIN)) - ret = -EPERM; - else if (ops->vidioc_s_register) - ret = ops->vidioc_s_register(file, fh, p); - break; - } -#endif - case VIDIOC_DBG_G_CHIP_IDENT: - { - struct v4l2_dbg_chip_ident *p = arg; - - if (!ops->vidioc_g_chip_ident) - break; - p->ident = V4L2_IDENT_NONE; - p->revision = 0; - ret = ops->vidioc_g_chip_ident(file, fh, p); - if (!ret) - dbgarg(cmd, "chip_ident=%u, revision=0x%x\n", p->ident, p->revision); - break; - } - case VIDIOC_S_HW_FREQ_SEEK: - { - struct v4l2_hw_freq_seek *p = arg; - - if (!ops->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 = ops->vidioc_s_hw_freq_seek(file, fh, p); - break; - } - case VIDIOC_ENUM_FRAMESIZES: - { - struct v4l2_frmsizeenum *p = arg; - - if (!ops->vidioc_enum_framesizes) - break; - - ret = ops->vidioc_enum_framesizes(file, fh, p); - dbgarg(cmd, - "index=%d, pixelformat=%c%c%c%c, type=%d ", - p->index, - (p->pixel_format & 0xff), - (p->pixel_format >> 8) & 0xff, - (p->pixel_format >> 16) & 0xff, - (p->pixel_format >> 24) & 0xff, - p->type); - switch (p->type) { - case V4L2_FRMSIZE_TYPE_DISCRETE: - dbgarg3("width = %d, height=%d\n", - p->discrete.width, p->discrete.height); - break; - case V4L2_FRMSIZE_TYPE_STEPWISE: - dbgarg3("min %dx%d, max %dx%d, step %dx%d\n", - p->stepwise.min_width, p->stepwise.min_height, - p->stepwise.step_width, p->stepwise.step_height, - p->stepwise.max_width, p->stepwise.max_height); - break; - case V4L2_FRMSIZE_TYPE_CONTINUOUS: - dbgarg3("continuous\n"); - break; - default: - dbgarg3("- Unknown type!\n"); - } - - break; - } - case VIDIOC_ENUM_FRAMEINTERVALS: - { - struct v4l2_frmivalenum *p = arg; - - if (!ops->vidioc_enum_frameintervals) - break; - - ret = ops->vidioc_enum_frameintervals(file, fh, p); - dbgarg(cmd, - "index=%d, pixelformat=%d, width=%d, height=%d, type=%d ", - p->index, p->pixel_format, - p->width, p->height, p->type); - switch (p->type) { - case V4L2_FRMIVAL_TYPE_DISCRETE: - dbgarg2("fps=%d/%d\n", - p->discrete.numerator, - p->discrete.denominator); - break; - case V4L2_FRMIVAL_TYPE_STEPWISE: - dbgarg2("min=%d/%d, max=%d/%d, step=%d/%d\n", - p->stepwise.min.numerator, - p->stepwise.min.denominator, - p->stepwise.max.numerator, - p->stepwise.max.denominator, - p->stepwise.step.numerator, - p->stepwise.step.denominator); - break; - case V4L2_FRMIVAL_TYPE_CONTINUOUS: - dbgarg2("continuous\n"); - break; - default: - dbgarg2("- Unknown type!\n"); - } - break; - } - case VIDIOC_ENUM_DV_PRESETS: - { - struct v4l2_dv_enum_preset *p = arg; - - if (!ops->vidioc_enum_dv_presets) - break; - - ret = ops->vidioc_enum_dv_presets(file, fh, p); - if (!ret) - dbgarg(cmd, - "index=%d, preset=%d, name=%s, width=%d," - " height=%d ", - p->index, p->preset, p->name, p->width, - p->height); - break; - } - case VIDIOC_S_DV_PRESET: - { - struct v4l2_dv_preset *p = arg; - - if (!ops->vidioc_s_dv_preset) - break; - - dbgarg(cmd, "preset=%d\n", p->preset); - ret = ops->vidioc_s_dv_preset(file, fh, p); - break; - } - case VIDIOC_G_DV_PRESET: - { - struct v4l2_dv_preset *p = arg; - - if (!ops->vidioc_g_dv_preset) - break; - - ret = ops->vidioc_g_dv_preset(file, fh, p); - if (!ret) - dbgarg(cmd, "preset=%d\n", p->preset); - break; - } - case VIDIOC_QUERY_DV_PRESET: - { - struct v4l2_dv_preset *p = arg; - - if (!ops->vidioc_query_dv_preset) - break; - - ret = ops->vidioc_query_dv_preset(file, fh, p); - if (!ret) - dbgarg(cmd, "preset=%d\n", p->preset); - break; - } - case VIDIOC_S_DV_TIMINGS: - { - struct v4l2_dv_timings *p = arg; - - if (!ops->vidioc_s_dv_timings) - break; - - switch (p->type) { - case V4L2_DV_BT_656_1120: - dbgarg2("bt-656/1120:interlaced=%d, pixelclock=%lld," - " width=%d, height=%d, polarities=%x," - " hfrontporch=%d, hsync=%d, hbackporch=%d," - " vfrontporch=%d, vsync=%d, vbackporch=%d," - " il_vfrontporch=%d, il_vsync=%d," - " il_vbackporch=%d\n", - p->bt.interlaced, p->bt.pixelclock, - p->bt.width, p->bt.height, p->bt.polarities, - p->bt.hfrontporch, p->bt.hsync, - p->bt.hbackporch, p->bt.vfrontporch, - p->bt.vsync, p->bt.vbackporch, - p->bt.il_vfrontporch, p->bt.il_vsync, - p->bt.il_vbackporch); - ret = ops->vidioc_s_dv_timings(file, fh, p); - break; - default: - dbgarg2("Unknown type %d!\n", p->type); - break; - } - break; - } - case VIDIOC_G_DV_TIMINGS: - { - struct v4l2_dv_timings *p = arg; - - if (!ops->vidioc_g_dv_timings) - break; - - ret = ops->vidioc_g_dv_timings(file, fh, p); - if (!ret) { - switch (p->type) { - case V4L2_DV_BT_656_1120: - dbgarg2("bt-656/1120:interlaced=%d," - " pixelclock=%lld," - " width=%d, height=%d, polarities=%x," - " hfrontporch=%d, hsync=%d," - " hbackporch=%d, vfrontporch=%d," - " vsync=%d, vbackporch=%d," - " il_vfrontporch=%d, il_vsync=%d," - " il_vbackporch=%d\n", - p->bt.interlaced, p->bt.pixelclock, - p->bt.width, p->bt.height, - p->bt.polarities, p->bt.hfrontporch, - p->bt.hsync, p->bt.hbackporch, - p->bt.vfrontporch, p->bt.vsync, - p->bt.vbackporch, p->bt.il_vfrontporch, - p->bt.il_vsync, p->bt.il_vbackporch); - break; - default: - dbgarg2("Unknown type %d!\n", p->type); - break; - } - } - break; - } - case VIDIOC_DQEVENT: - { - struct v4l2_event *ev = arg; - - if (!ops->vidioc_subscribe_event) - break; - - ret = v4l2_event_dequeue(fh, ev, file->f_flags & O_NONBLOCK); - if (ret < 0) { - dbgarg(cmd, "no pending events?"); - break; - } - dbgarg(cmd, - "pending=%d, type=0x%8.8x, sequence=%d, " - "timestamp=%lu.%9.9lu ", - ev->pending, ev->type, ev->sequence, - ev->timestamp.tv_sec, ev->timestamp.tv_nsec); - break; - } - case VIDIOC_SUBSCRIBE_EVENT: - { - struct v4l2_event_subscription *sub = arg; - - if (!ops->vidioc_subscribe_event) - break; - - ret = ops->vidioc_subscribe_event(fh, sub); - if (ret < 0) { - dbgarg(cmd, "failed, ret=%ld", ret); - break; - } - dbgarg(cmd, "type=0x%8.8x", sub->type); - break; - } - case VIDIOC_UNSUBSCRIBE_EVENT: - { - struct v4l2_event_subscription *sub = arg; - - if (!ops->vidioc_unsubscribe_event) - break; - - ret = ops->vidioc_unsubscribe_event(fh, sub); - if (ret < 0) { - dbgarg(cmd, "failed, ret=%ld", ret); - break; - } - dbgarg(cmd, "type=0x%8.8x", sub->type); - break; - } - default: - { - if (!ops->vidioc_default) - break; - ret = ops->vidioc_default(file, fh, cmd, arg); - break; - } - } /* switch */ - - if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) { - if (ret < 0) { - v4l_print_ioctl(vfd->name, cmd); - printk(KERN_CONT " error %ld\n", ret); - } - } - - return ret; -} - -/* In some cases, only a few fields are used as input, i.e. when the app sets - * "index" and then the driver fills in the rest of the structure for the thing - * with that index. We only need to copy up the first non-input field. */ -static unsigned long cmd_input_size(unsigned int cmd) -{ - /* Size of structure up to and including 'field' */ -#define CMDINSIZE(cmd, type, field) \ - case VIDIOC_##cmd: \ - return offsetof(struct v4l2_##type, field) + \ - sizeof(((struct v4l2_##type *)0)->field); - - switch (cmd) { - CMDINSIZE(ENUM_FMT, fmtdesc, type); - CMDINSIZE(G_FMT, format, type); - CMDINSIZE(QUERYBUF, buffer, type); - CMDINSIZE(G_PARM, streamparm, type); - CMDINSIZE(ENUMSTD, standard, index); - CMDINSIZE(ENUMINPUT, input, index); - CMDINSIZE(G_CTRL, control, id); - CMDINSIZE(G_TUNER, tuner, index); - CMDINSIZE(QUERYCTRL, queryctrl, id); - CMDINSIZE(QUERYMENU, querymenu, index); - CMDINSIZE(ENUMOUTPUT, output, index); - CMDINSIZE(G_MODULATOR, modulator, index); - CMDINSIZE(G_FREQUENCY, frequency, tuner); - CMDINSIZE(CROPCAP, cropcap, type); - CMDINSIZE(G_CROP, crop, type); - CMDINSIZE(ENUMAUDIO, audio, index); - CMDINSIZE(ENUMAUDOUT, audioout, index); - CMDINSIZE(ENCODER_CMD, encoder_cmd, flags); - CMDINSIZE(TRY_ENCODER_CMD, encoder_cmd, flags); - CMDINSIZE(G_SLICED_VBI_CAP, sliced_vbi_cap, type); - CMDINSIZE(ENUM_FRAMESIZES, frmsizeenum, pixel_format); - CMDINSIZE(ENUM_FRAMEINTERVALS, frmivalenum, height); - default: - return _IOC_SIZE(cmd); - } -} - -long video_ioctl2(struct file *file, - unsigned int cmd, unsigned long arg) -{ - char sbuf[128]; - void *mbuf = NULL; - void *parg = (void *)arg; - long 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 */ - if (_IOC_DIR(cmd) != _IOC_NONE) { - 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) { - unsigned long n = cmd_input_size(cmd); - - if (copy_from_user(parg, (void __user *)arg, n)) - goto out; - - /* zero out anything we don't copy from userspace */ - if (n < _IOC_SIZE(cmd)) - memset((u8 *)parg + n, 0, _IOC_SIZE(cmd) - n); - } else { - /* read-only ioctl */ - memset(parg, 0, _IOC_SIZE(cmd)); - } - } - - 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(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; -} -EXPORT_SYMBOL(video_ioctl2); |