From efbceecd4522a41b8442c6b4f68b4508d57d1ccf Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Sat, 9 Jun 2012 12:54:02 -0300 Subject: [PATCH] [media] v4l2-ioctl.c: use the new table for control ioctls Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/v4l2-ioctl.c | 395 ++++++++++++++++--------------- 1 file changed, 198 insertions(+), 197 deletions(-) diff --git a/drivers/media/video/v4l2-ioctl.c b/drivers/media/video/v4l2-ioctl.c index 1f75a6c127ee..798ee42d4e1a 100644 --- a/drivers/media/video/v4l2-ioctl.c +++ b/drivers/media/video/v4l2-ioctl.c @@ -512,6 +512,49 @@ static void v4l_print_streamparm(const void *arg, bool write_only) } } +static void v4l_print_queryctrl(const void *arg, bool write_only) +{ + const struct v4l2_queryctrl *p = arg; + + pr_cont("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); +} + +static void v4l_print_querymenu(const void *arg, bool write_only) +{ + const struct v4l2_querymenu *p = arg; + + pr_cont("id=0x%x, index=%d\n", p->id, p->index); +} + +static void v4l_print_control(const void *arg, bool write_only) +{ + const struct v4l2_control *p = arg; + + pr_cont("id=0x%x, value=%d\n", p->id, p->value); +} + +static void v4l_print_ext_controls(const void *arg, bool write_only) +{ + const struct v4l2_ext_controls *p = arg; + int i; + + pr_cont("class=0x%x, count=%d, error_idx=%d", + p->ctrl_class, p->count, p->error_idx); + for (i = 0; i < p->count; i++) { + if (p->controls[i].size) + pr_cont(", id/val=0x%x/0x%x", + p->controls[i].id, p->controls[i].value); + else + pr_cont(", id/size=0x%x/%u", + p->controls[i].id, p->controls[i].size); + } + pr_cont("\n"); +} + static void v4l_print_u32(const void *arg, bool write_only) { pr_cont("value=%u\n", *(const u32 *)arg); @@ -552,27 +595,7 @@ static void dbgtimings(struct video_device *vfd, } } -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) +static int check_ext_ctrls(struct v4l2_ext_controls *c, int allow_priv) { __u32 i; @@ -1213,6 +1236,153 @@ static int v4l_s_parm(const struct v4l2_ioctl_ops *ops, return ret ? ret : ops->vidioc_s_parm(file, fh, p); } +static int v4l_queryctrl(const struct v4l2_ioctl_ops *ops, + struct file *file, void *fh, void *arg) +{ + struct video_device *vfd = video_devdata(file); + struct v4l2_queryctrl *p = arg; + struct v4l2_fh *vfh = fh; + + if (vfh && vfh->ctrl_handler) + return v4l2_queryctrl(vfh->ctrl_handler, p); + if (vfd->ctrl_handler) + return v4l2_queryctrl(vfd->ctrl_handler, p); + if (ops->vidioc_queryctrl) + return ops->vidioc_queryctrl(file, fh, p); + return -ENOTTY; +} + +static int v4l_querymenu(const struct v4l2_ioctl_ops *ops, + struct file *file, void *fh, void *arg) +{ + struct video_device *vfd = video_devdata(file); + struct v4l2_querymenu *p = arg; + struct v4l2_fh *vfh = fh; + + if (vfh && vfh->ctrl_handler) + return v4l2_querymenu(vfh->ctrl_handler, p); + if (vfd->ctrl_handler) + return v4l2_querymenu(vfd->ctrl_handler, p); + if (ops->vidioc_querymenu) + return ops->vidioc_querymenu(file, fh, p); + return -ENOTTY; +} + +static int v4l_g_ctrl(const struct v4l2_ioctl_ops *ops, + struct file *file, void *fh, void *arg) +{ + struct video_device *vfd = video_devdata(file); + struct v4l2_control *p = arg; + struct v4l2_fh *vfh = fh; + struct v4l2_ext_controls ctrls; + struct v4l2_ext_control ctrl; + + if (vfh && vfh->ctrl_handler) + return v4l2_g_ctrl(vfh->ctrl_handler, p); + if (vfd->ctrl_handler) + return v4l2_g_ctrl(vfd->ctrl_handler, p); + if (ops->vidioc_g_ctrl) + return ops->vidioc_g_ctrl(file, fh, p); + if (ops->vidioc_g_ext_ctrls == NULL) + return -ENOTTY; + + 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)) { + int ret = ops->vidioc_g_ext_ctrls(file, fh, &ctrls); + + if (ret == 0) + p->value = ctrl.value; + return ret; + } + return -EINVAL; +} + +static int v4l_s_ctrl(const struct v4l2_ioctl_ops *ops, + struct file *file, void *fh, void *arg) +{ + struct video_device *vfd = video_devdata(file); + struct v4l2_control *p = arg; + struct v4l2_fh *vfh = fh; + struct v4l2_ext_controls ctrls; + struct v4l2_ext_control ctrl; + + if (vfh && vfh->ctrl_handler) + return v4l2_s_ctrl(vfh, vfh->ctrl_handler, p); + if (vfd->ctrl_handler) + return v4l2_s_ctrl(NULL, vfd->ctrl_handler, p); + if (ops->vidioc_s_ctrl) + return ops->vidioc_s_ctrl(file, fh, p); + if (ops->vidioc_s_ext_ctrls == NULL) + return -ENOTTY; + + 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)) + return ops->vidioc_s_ext_ctrls(file, fh, &ctrls); + return -EINVAL; +} + +static int v4l_g_ext_ctrls(const struct v4l2_ioctl_ops *ops, + struct file *file, void *fh, void *arg) +{ + struct video_device *vfd = video_devdata(file); + struct v4l2_ext_controls *p = arg; + struct v4l2_fh *vfh = fh; + + p->error_idx = p->count; + if (vfh && vfh->ctrl_handler) + return v4l2_g_ext_ctrls(vfh->ctrl_handler, p); + if (vfd->ctrl_handler) + return v4l2_g_ext_ctrls(vfd->ctrl_handler, p); + if (ops->vidioc_g_ext_ctrls == NULL) + return -ENOTTY; + return check_ext_ctrls(p, 0) ? ops->vidioc_g_ext_ctrls(file, fh, p) : + -EINVAL; +} + +static int v4l_s_ext_ctrls(const struct v4l2_ioctl_ops *ops, + struct file *file, void *fh, void *arg) +{ + struct video_device *vfd = video_devdata(file); + struct v4l2_ext_controls *p = arg; + struct v4l2_fh *vfh = fh; + + p->error_idx = p->count; + if (vfh && vfh->ctrl_handler) + return v4l2_s_ext_ctrls(vfh, vfh->ctrl_handler, p); + if (vfd->ctrl_handler) + return v4l2_s_ext_ctrls(NULL, vfd->ctrl_handler, p); + if (ops->vidioc_s_ext_ctrls == NULL) + return -ENOTTY; + return check_ext_ctrls(p, 0) ? ops->vidioc_s_ext_ctrls(file, fh, p) : + -EINVAL; +} + +static int v4l_try_ext_ctrls(const struct v4l2_ioctl_ops *ops, + struct file *file, void *fh, void *arg) +{ + struct video_device *vfd = video_devdata(file); + struct v4l2_ext_controls *p = arg; + struct v4l2_fh *vfh = fh; + + p->error_idx = p->count; + if (vfh && vfh->ctrl_handler) + return v4l2_try_ext_ctrls(vfh->ctrl_handler, p); + if (vfd->ctrl_handler) + return v4l2_try_ext_ctrls(vfd->ctrl_handler, p); + if (ops->vidioc_try_ext_ctrls == NULL) + return -ENOTTY; + return check_ext_ctrls(p, 0) ? ops->vidioc_try_ext_ctrls(file, fh, p) : + -EINVAL; +} + struct v4l2_ioctl_info { unsigned int ioctl; u32 flags; @@ -1283,14 +1453,14 @@ static struct v4l2_ioctl_info v4l2_ioctls[] = { IOCTL_INFO_FNC(VIDIOC_S_STD, v4l_s_std, v4l_print_std, INFO_FL_PRIO), IOCTL_INFO_FNC(VIDIOC_ENUMSTD, v4l_enumstd, v4l_print_standard, INFO_FL_CLEAR(v4l2_standard, index)), IOCTL_INFO_FNC(VIDIOC_ENUMINPUT, v4l_enuminput, v4l_print_enuminput, INFO_FL_CLEAR(v4l2_input, index)), - IOCTL_INFO(VIDIOC_G_CTRL, INFO_FL_CTRL), - IOCTL_INFO(VIDIOC_S_CTRL, INFO_FL_PRIO | INFO_FL_CTRL), + IOCTL_INFO_FNC(VIDIOC_G_CTRL, v4l_g_ctrl, v4l_print_control, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_control, id)), + IOCTL_INFO_FNC(VIDIOC_S_CTRL, v4l_s_ctrl, v4l_print_control, INFO_FL_PRIO | INFO_FL_CTRL), IOCTL_INFO_FNC(VIDIOC_G_TUNER, v4l_g_tuner, v4l_print_tuner, INFO_FL_CLEAR(v4l2_tuner, index)), IOCTL_INFO_FNC(VIDIOC_S_TUNER, v4l_s_tuner, v4l_print_tuner, INFO_FL_PRIO), IOCTL_INFO_STD(VIDIOC_G_AUDIO, vidioc_g_audio, v4l_print_audio, 0), IOCTL_INFO_STD(VIDIOC_S_AUDIO, vidioc_s_audio, v4l_print_audio, INFO_FL_PRIO), - IOCTL_INFO(VIDIOC_QUERYCTRL, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_queryctrl, id)), - IOCTL_INFO(VIDIOC_QUERYMENU, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_querymenu, index)), + IOCTL_INFO_FNC(VIDIOC_QUERYCTRL, v4l_queryctrl, v4l_print_queryctrl, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_queryctrl, id)), + IOCTL_INFO_FNC(VIDIOC_QUERYMENU, v4l_querymenu, v4l_print_querymenu, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_querymenu, index)), IOCTL_INFO_STD(VIDIOC_G_INPUT, vidioc_g_input, v4l_print_u32, 0), IOCTL_INFO_FNC(VIDIOC_S_INPUT, v4l_s_input, v4l_print_u32, INFO_FL_PRIO), IOCTL_INFO_STD(VIDIOC_G_OUTPUT, vidioc_g_output, v4l_print_u32, 0), @@ -1317,9 +1487,9 @@ static struct v4l2_ioctl_info v4l2_ioctls[] = { IOCTL_INFO_FNC(VIDIOC_S_PRIORITY, v4l_s_priority, v4l_print_u32, INFO_FL_PRIO), IOCTL_INFO(VIDIOC_G_SLICED_VBI_CAP, INFO_FL_CLEAR(v4l2_sliced_vbi_cap, type)), IOCTL_INFO(VIDIOC_LOG_STATUS, 0), - IOCTL_INFO(VIDIOC_G_EXT_CTRLS, INFO_FL_CTRL), - IOCTL_INFO(VIDIOC_S_EXT_CTRLS, INFO_FL_PRIO | INFO_FL_CTRL), - IOCTL_INFO(VIDIOC_TRY_EXT_CTRLS, 0), + IOCTL_INFO_FNC(VIDIOC_G_EXT_CTRLS, v4l_g_ext_ctrls, v4l_print_ext_controls, INFO_FL_CTRL), + IOCTL_INFO_FNC(VIDIOC_S_EXT_CTRLS, v4l_s_ext_ctrls, v4l_print_ext_controls, INFO_FL_PRIO | INFO_FL_CTRL), + IOCTL_INFO_FNC(VIDIOC_TRY_EXT_CTRLS, v4l_try_ext_ctrls, v4l_print_ext_controls, 0), IOCTL_INFO(VIDIOC_ENUM_FRAMESIZES, INFO_FL_CLEAR(v4l2_frmsizeenum, pixel_format)), IOCTL_INFO(VIDIOC_ENUM_FRAMEINTERVALS, INFO_FL_CLEAR(v4l2_frmivalenum, height)), IOCTL_INFO(VIDIOC_G_ENC_INDEX, 0), @@ -1451,175 +1621,6 @@ static long __video_do_ioctl(struct file *file, } switch (cmd) { - /* --- controls ---------------------------------------------- */ - case VIDIOC_QUERYCTRL: - { - struct v4l2_queryctrl *p = arg; - - if (vfh && vfh->ctrl_handler) - ret = v4l2_queryctrl(vfh->ctrl_handler, p); - else 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 (vfh && vfh->ctrl_handler) - ret = v4l2_g_ctrl(vfh->ctrl_handler, p); - else 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 (!(vfh && vfh->ctrl_handler) && !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 (vfh && vfh->ctrl_handler) { - ret = v4l2_s_ctrl(vfh, vfh->ctrl_handler, p); - break; - } - if (vfd->ctrl_handler) { - ret = v4l2_s_ctrl(NULL, 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); - else - ret = -EINVAL; - break; - } - case VIDIOC_G_EXT_CTRLS: - { - struct v4l2_ext_controls *p = arg; - - p->error_idx = p->count; - if (vfh && vfh->ctrl_handler) - ret = v4l2_g_ext_ctrls(vfh->ctrl_handler, p); - else if (vfd->ctrl_handler) - ret = v4l2_g_ext_ctrls(vfd->ctrl_handler, p); - else if (ops->vidioc_g_ext_ctrls) - ret = check_ext_ctrls(p, 0) ? - ops->vidioc_g_ext_ctrls(file, fh, p) : - -EINVAL; - 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 (!(vfh && vfh->ctrl_handler) && !vfd->ctrl_handler && - !ops->vidioc_s_ext_ctrls) - break; - v4l_print_ext_ctrls(cmd, vfd, p, 1); - if (vfh && vfh->ctrl_handler) - ret = v4l2_s_ext_ctrls(vfh, vfh->ctrl_handler, p); - else if (vfd->ctrl_handler) - ret = v4l2_s_ext_ctrls(NULL, vfd->ctrl_handler, p); - else if (check_ext_ctrls(p, 0)) - ret = ops->vidioc_s_ext_ctrls(file, fh, p); - else - ret = -EINVAL; - break; - } - case VIDIOC_TRY_EXT_CTRLS: - { - struct v4l2_ext_controls *p = arg; - - p->error_idx = p->count; - if (!(vfh && vfh->ctrl_handler) && !vfd->ctrl_handler && - !ops->vidioc_try_ext_ctrls) - break; - v4l_print_ext_ctrls(cmd, vfd, p, 1); - if (vfh && vfh->ctrl_handler) - ret = v4l2_try_ext_ctrls(vfh->ctrl_handler, p); - else 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); - else - ret = -EINVAL; - break; - } - case VIDIOC_QUERYMENU: - { - struct v4l2_querymenu *p = arg; - - if (vfh && vfh->ctrl_handler) - ret = v4l2_querymenu(vfh->ctrl_handler, p); - else 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; - } case VIDIOC_G_CROP: { struct v4l2_crop *p = arg; -- 2.20.1