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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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[media] vivi: convert to the control framework and add test controls
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans Verkuil
Mauro Carvalho Chehab
parent
0eb73de019
commit
7e996afa81
@ -30,6 +30,7 @@
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#include <media/videobuf2-vmalloc.h>
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#include <media/v4l2-device.h>
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#include <media/v4l2-ioctl.h>
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#include <media/v4l2-ctrls.h>
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#include <media/v4l2-common.h>
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#define VIVI_MODULE_NAME "vivi"
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@ -158,13 +159,20 @@ static LIST_HEAD(vivi_devlist);
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struct vivi_dev {
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struct list_head vivi_devlist;
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struct v4l2_device v4l2_dev;
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struct v4l2_ctrl_handler ctrl_handler;
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/* controls */
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int brightness;
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int contrast;
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int saturation;
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int hue;
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int volume;
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struct v4l2_ctrl *brightness;
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struct v4l2_ctrl *contrast;
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struct v4l2_ctrl *saturation;
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struct v4l2_ctrl *hue;
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struct v4l2_ctrl *volume;
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struct v4l2_ctrl *button;
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struct v4l2_ctrl *boolean;
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struct v4l2_ctrl *int32;
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struct v4l2_ctrl *int64;
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struct v4l2_ctrl *menu;
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struct v4l2_ctrl *string;
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spinlock_t slock;
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struct mutex mutex;
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@ -177,6 +185,7 @@ struct vivi_dev {
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/* Several counters */
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unsigned ms;
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unsigned long jiffies;
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unsigned button_pressed;
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int mv_count; /* Controls bars movement */
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@ -470,14 +479,30 @@ static void vivi_fillbuff(struct vivi_dev *dev, struct vivi_buffer *buf)
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dev->width, dev->height, dev->input);
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gen_text(dev, vbuf, line++ * 16, 16, str);
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mutex_lock(&dev->ctrl_handler.lock);
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snprintf(str, sizeof(str), " brightness %3d, contrast %3d, saturation %3d, hue %d ",
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dev->brightness,
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dev->contrast,
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dev->saturation,
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dev->hue);
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dev->brightness->cur.val,
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dev->contrast->cur.val,
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dev->saturation->cur.val,
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dev->hue->cur.val);
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gen_text(dev, vbuf, line++ * 16, 16, str);
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snprintf(str, sizeof(str), " volume %3d ", dev->volume);
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snprintf(str, sizeof(str), " volume %3d ", dev->volume->cur.val);
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gen_text(dev, vbuf, line++ * 16, 16, str);
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snprintf(str, sizeof(str), " int32 %d, int64 %lld ",
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dev->int32->cur.val,
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dev->int64->cur.val64);
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gen_text(dev, vbuf, line++ * 16, 16, str);
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snprintf(str, sizeof(str), " boolean %d, menu %s, string \"%s\" ",
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dev->boolean->cur.val,
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dev->menu->qmenu[dev->menu->cur.val],
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dev->string->cur.string);
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mutex_unlock(&dev->ctrl_handler.lock);
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gen_text(dev, vbuf, line++ * 16, 16, str);
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if (dev->button_pressed) {
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dev->button_pressed--;
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snprintf(str, sizeof(str), " button pressed!");
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gen_text(dev, vbuf, line++ * 16, 16, str);
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}
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dev->mv_count += 2;
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@ -957,80 +982,14 @@ static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
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}
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/* --- controls ---------------------------------------------- */
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static int vidioc_queryctrl(struct file *file, void *priv,
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struct v4l2_queryctrl *qc)
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static int vivi_s_ctrl(struct v4l2_ctrl *ctrl)
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{
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switch (qc->id) {
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case V4L2_CID_AUDIO_VOLUME:
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return v4l2_ctrl_query_fill(qc, 0, 255, 1, 200);
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case V4L2_CID_BRIGHTNESS:
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return v4l2_ctrl_query_fill(qc, 0, 255, 1, 127);
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case V4L2_CID_CONTRAST:
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return v4l2_ctrl_query_fill(qc, 0, 255, 1, 16);
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case V4L2_CID_SATURATION:
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return v4l2_ctrl_query_fill(qc, 0, 255, 1, 127);
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case V4L2_CID_HUE:
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return v4l2_ctrl_query_fill(qc, -128, 127, 1, 0);
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}
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return -EINVAL;
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}
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struct vivi_dev *dev = container_of(ctrl->handler, struct vivi_dev, ctrl_handler);
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static int vidioc_g_ctrl(struct file *file, void *priv,
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struct v4l2_control *ctrl)
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{
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struct vivi_dev *dev = video_drvdata(file);
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switch (ctrl->id) {
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case V4L2_CID_AUDIO_VOLUME:
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ctrl->value = dev->volume;
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return 0;
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case V4L2_CID_BRIGHTNESS:
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ctrl->value = dev->brightness;
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return 0;
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case V4L2_CID_CONTRAST:
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ctrl->value = dev->contrast;
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return 0;
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case V4L2_CID_SATURATION:
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ctrl->value = dev->saturation;
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return 0;
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case V4L2_CID_HUE:
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ctrl->value = dev->hue;
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return 0;
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}
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return -EINVAL;
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}
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static int vidioc_s_ctrl(struct file *file, void *priv,
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struct v4l2_control *ctrl)
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{
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struct vivi_dev *dev = video_drvdata(file);
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struct v4l2_queryctrl qc;
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int err;
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qc.id = ctrl->id;
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err = vidioc_queryctrl(file, priv, &qc);
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if (err < 0)
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return err;
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if (ctrl->value < qc.minimum || ctrl->value > qc.maximum)
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return -ERANGE;
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switch (ctrl->id) {
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case V4L2_CID_AUDIO_VOLUME:
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dev->volume = ctrl->value;
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return 0;
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case V4L2_CID_BRIGHTNESS:
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dev->brightness = ctrl->value;
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return 0;
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case V4L2_CID_CONTRAST:
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dev->contrast = ctrl->value;
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return 0;
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case V4L2_CID_SATURATION:
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dev->saturation = ctrl->value;
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return 0;
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case V4L2_CID_HUE:
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dev->hue = ctrl->value;
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return 0;
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}
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return -EINVAL;
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if (ctrl == dev->button)
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dev->button_pressed = 30;
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return 0;
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}
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/* ------------------------------------------------------------------
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@ -1094,6 +1053,79 @@ static int vivi_mmap(struct file *file, struct vm_area_struct *vma)
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return ret;
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}
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static const struct v4l2_ctrl_ops vivi_ctrl_ops = {
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.s_ctrl = vivi_s_ctrl,
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};
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#define VIVI_CID_CUSTOM_BASE (V4L2_CID_USER_BASE | 0xf000)
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static const struct v4l2_ctrl_config vivi_ctrl_button = {
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.ops = &vivi_ctrl_ops,
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.id = VIVI_CID_CUSTOM_BASE + 0,
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.name = "Button",
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.type = V4L2_CTRL_TYPE_BUTTON,
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};
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static const struct v4l2_ctrl_config vivi_ctrl_boolean = {
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.ops = &vivi_ctrl_ops,
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.id = VIVI_CID_CUSTOM_BASE + 1,
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.name = "Boolean",
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.type = V4L2_CTRL_TYPE_BOOLEAN,
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.min = 0,
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.max = 1,
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.step = 1,
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.def = 1,
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};
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static const struct v4l2_ctrl_config vivi_ctrl_int32 = {
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.ops = &vivi_ctrl_ops,
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.id = VIVI_CID_CUSTOM_BASE + 2,
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.name = "Integer 32 Bits",
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.type = V4L2_CTRL_TYPE_INTEGER,
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.min = -2147483648,
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.max = 2147483647,
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.step = 1,
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};
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static const struct v4l2_ctrl_config vivi_ctrl_int64 = {
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.ops = &vivi_ctrl_ops,
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.id = VIVI_CID_CUSTOM_BASE + 3,
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.name = "Integer 64 Bits",
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.type = V4L2_CTRL_TYPE_INTEGER64,
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};
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static const char * const vivi_ctrl_menu_strings[] = {
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"Menu Item 0 (Skipped)",
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"Menu Item 1",
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"Menu Item 2 (Skipped)",
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"Menu Item 3",
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"Menu Item 4",
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"Menu Item 5 (Skipped)",
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NULL,
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};
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static const struct v4l2_ctrl_config vivi_ctrl_menu = {
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.ops = &vivi_ctrl_ops,
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.id = VIVI_CID_CUSTOM_BASE + 4,
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.name = "Menu",
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.type = V4L2_CTRL_TYPE_MENU,
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.min = 1,
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.max = 4,
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.def = 3,
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.menu_skip_mask = 0x04,
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.qmenu = vivi_ctrl_menu_strings,
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};
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static const struct v4l2_ctrl_config vivi_ctrl_string = {
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.ops = &vivi_ctrl_ops,
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.id = VIVI_CID_CUSTOM_BASE + 5,
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.name = "String",
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.type = V4L2_CTRL_TYPE_STRING,
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.min = 2,
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.max = 4,
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.step = 1,
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};
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static const struct v4l2_file_operations vivi_fops = {
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.owner = THIS_MODULE,
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.open = vivi_open,
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@ -1120,9 +1152,6 @@ static const struct v4l2_ioctl_ops vivi_ioctl_ops = {
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.vidioc_s_input = vidioc_s_input,
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.vidioc_streamon = vidioc_streamon,
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.vidioc_streamoff = vidioc_streamoff,
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.vidioc_queryctrl = vidioc_queryctrl,
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.vidioc_g_ctrl = vidioc_g_ctrl,
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.vidioc_s_ctrl = vidioc_s_ctrl,
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};
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static struct video_device vivi_template = {
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@ -1153,6 +1182,7 @@ static int vivi_release(void)
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video_device_node_name(dev->vfd));
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video_unregister_device(dev->vfd);
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v4l2_device_unregister(&dev->v4l2_dev);
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v4l2_ctrl_handler_free(&dev->ctrl_handler);
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kfree(dev);
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}
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@ -1163,6 +1193,7 @@ static int __init vivi_create_instance(int inst)
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{
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struct vivi_dev *dev;
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struct video_device *vfd;
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struct v4l2_ctrl_handler *hdl;
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struct vb2_queue *q;
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int ret;
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@ -1179,11 +1210,29 @@ static int __init vivi_create_instance(int inst)
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dev->fmt = &formats[0];
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dev->width = 640;
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dev->height = 480;
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dev->volume = 200;
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dev->brightness = 127;
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dev->contrast = 16;
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dev->saturation = 127;
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dev->hue = 0;
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hdl = &dev->ctrl_handler;
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v4l2_ctrl_handler_init(hdl, 11);
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dev->volume = v4l2_ctrl_new_std(hdl, &vivi_ctrl_ops,
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V4L2_CID_AUDIO_VOLUME, 0, 255, 1, 200);
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dev->brightness = v4l2_ctrl_new_std(hdl, &vivi_ctrl_ops,
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V4L2_CID_BRIGHTNESS, 0, 255, 1, 127);
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dev->contrast = v4l2_ctrl_new_std(hdl, &vivi_ctrl_ops,
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V4L2_CID_CONTRAST, 0, 255, 1, 16);
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dev->saturation = v4l2_ctrl_new_std(hdl, &vivi_ctrl_ops,
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V4L2_CID_SATURATION, 0, 255, 1, 127);
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dev->hue = v4l2_ctrl_new_std(hdl, &vivi_ctrl_ops,
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V4L2_CID_HUE, -128, 127, 1, 0);
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dev->button = v4l2_ctrl_new_custom(hdl, &vivi_ctrl_button, NULL);
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dev->int32 = v4l2_ctrl_new_custom(hdl, &vivi_ctrl_int32, NULL);
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dev->int64 = v4l2_ctrl_new_custom(hdl, &vivi_ctrl_int64, NULL);
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dev->boolean = v4l2_ctrl_new_custom(hdl, &vivi_ctrl_boolean, NULL);
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dev->menu = v4l2_ctrl_new_custom(hdl, &vivi_ctrl_menu, NULL);
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dev->string = v4l2_ctrl_new_custom(hdl, &vivi_ctrl_string, NULL);
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if (hdl->error) {
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ret = hdl->error;
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goto unreg_dev;
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}
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dev->v4l2_dev.ctrl_handler = hdl;
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/* initialize locks */
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spin_lock_init(&dev->slock);
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@ -1241,6 +1290,7 @@ static int __init vivi_create_instance(int inst)
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rel_vdev:
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video_device_release(vfd);
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unreg_dev:
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v4l2_ctrl_handler_free(hdl);
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v4l2_device_unregister(&dev->v4l2_dev);
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free_dev:
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kfree(dev);
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