Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  * vivid-touch-cap.c - touch support functions.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6) #include "vivid-core.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7) #include "vivid-kthread-touch.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) #include "vivid-vid-common.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) #include "vivid-touch-cap.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) static int touch_cap_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) 				 unsigned int *nplanes, unsigned int sizes[],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) 				 struct device *alloc_devs[])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) 	struct vivid_dev *dev = vb2_get_drv_priv(vq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) 	struct v4l2_pix_format *f = &dev->tch_format;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) 	unsigned int size = f->sizeimage;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) 	if (*nplanes) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) 		if (sizes[0] < size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) 			return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) 	} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) 		sizes[0] = size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) 	if (vq->num_buffers + *nbuffers < 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) 		*nbuffers = 2 - vq->num_buffers;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) 	*nplanes = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) static int touch_cap_buf_prepare(struct vb2_buffer *vb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) 	struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 	struct v4l2_pix_format *f = &dev->tch_format;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) 	unsigned int size = f->sizeimage;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 	if (dev->buf_prepare_error) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 		/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 		 * Error injection: test what happens if buf_prepare() returns
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 		 * an error.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 		 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 		dev->buf_prepare_error = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 	if (vb2_plane_size(vb, 0) < size) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 		dprintk(dev, 1, "%s data will not fit into plane (%lu < %u)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 			__func__, vb2_plane_size(vb, 0), size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 	vb2_set_plane_payload(vb, 0, size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) static void touch_cap_buf_queue(struct vb2_buffer *vb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 	struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 	struct vivid_buffer *buf = container_of(vbuf, struct vivid_buffer, vb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 	vbuf->field = V4L2_FIELD_NONE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 	spin_lock(&dev->slock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 	list_add_tail(&buf->list, &dev->touch_cap_active);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 	spin_unlock(&dev->slock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) static int touch_cap_start_streaming(struct vb2_queue *vq, unsigned int count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 	struct vivid_dev *dev = vb2_get_drv_priv(vq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 	int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 	dev->touch_cap_seq_count = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 	if (dev->start_streaming_error) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 		dev->start_streaming_error = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 		err = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 	} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 		err = vivid_start_generating_touch_cap(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 	if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 		struct vivid_buffer *buf, *tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 		list_for_each_entry_safe(buf, tmp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 					 &dev->touch_cap_active, list) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 			list_del(&buf->list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 			vb2_buffer_done(&buf->vb.vb2_buf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 					VB2_BUF_STATE_QUEUED);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 	return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) /* abort streaming and wait for last buffer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) static void touch_cap_stop_streaming(struct vb2_queue *vq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 	struct vivid_dev *dev = vb2_get_drv_priv(vq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 	vivid_stop_generating_touch_cap(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) static void touch_cap_buf_request_complete(struct vb2_buffer *vb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 	struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 	v4l2_ctrl_request_complete(vb->req_obj.req, &dev->ctrl_hdl_touch_cap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) const struct vb2_ops vivid_touch_cap_qops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 	.queue_setup		= touch_cap_queue_setup,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 	.buf_prepare		= touch_cap_buf_prepare,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 	.buf_queue		= touch_cap_buf_queue,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 	.start_streaming	= touch_cap_start_streaming,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 	.stop_streaming		= touch_cap_stop_streaming,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 	.buf_request_complete	= touch_cap_buf_request_complete,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 	.wait_prepare		= vb2_ops_wait_prepare,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 	.wait_finish		= vb2_ops_wait_finish,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) int vivid_enum_fmt_tch(struct file *file, void  *priv, struct v4l2_fmtdesc *f)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 	if (f->index)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 	f->pixelformat = V4L2_TCH_FMT_DELTA_TD16;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) int vivid_g_fmt_tch(struct file *file, void *priv, struct v4l2_format *f)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 	struct vivid_dev *dev = video_drvdata(file);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 	if (dev->multiplanar)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 		return -ENOTTY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 	f->fmt.pix = dev->tch_format;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) int vivid_g_fmt_tch_mplane(struct file *file, void *priv, struct v4l2_format *f)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 	struct vivid_dev *dev = video_drvdata(file);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 	struct v4l2_format sp_fmt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 	if (!dev->multiplanar)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 		return -ENOTTY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 	sp_fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 	sp_fmt.fmt.pix = dev->tch_format;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 	fmt_sp2mp(&sp_fmt, f);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) int vivid_g_parm_tch(struct file *file, void *priv,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 		     struct v4l2_streamparm *parm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 	struct vivid_dev *dev = video_drvdata(file);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 	if (parm->type != (dev->multiplanar ?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 			   V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE :
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 			   V4L2_BUF_TYPE_VIDEO_CAPTURE))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 	parm->parm.capture.capability   = V4L2_CAP_TIMEPERFRAME;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 	parm->parm.capture.timeperframe = dev->timeperframe_tch_cap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 	parm->parm.capture.readbuffers  = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) int vivid_enum_input_tch(struct file *file, void *priv, struct v4l2_input *inp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 	if (inp->index)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 	inp->type = V4L2_INPUT_TYPE_TOUCH;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 	strscpy(inp->name, "Vivid Touch", sizeof(inp->name));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 	inp->capabilities = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) int vivid_g_input_tch(struct file *file, void *priv, unsigned int *i)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 	*i = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) int vivid_set_touch(struct vivid_dev *dev, unsigned int i)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 	struct v4l2_pix_format *f = &dev->tch_format;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 	if (i)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 	f->pixelformat = V4L2_TCH_FMT_DELTA_TD16;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 	f->width =  VIVID_TCH_WIDTH;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 	f->height = VIVID_TCH_HEIGHT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 	f->field = V4L2_FIELD_NONE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 	f->colorspace = V4L2_COLORSPACE_RAW;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 	f->bytesperline = f->width * sizeof(s16);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 	f->sizeimage = f->width * f->height * sizeof(s16);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) int vivid_s_input_tch(struct file *file, void *priv, unsigned int i)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 	return vivid_set_touch(video_drvdata(file), i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) static void vivid_fill_buff_noise(__s16 *tch_buf, int size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 	int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 	/* Fill 10% of the values within range -3 and 3, zero the others */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 	for (i = 0; i < size; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 		unsigned int rand = get_random_int();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 		if (rand % 10)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 			tch_buf[i] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 		else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 			tch_buf[i] = (rand / 10) % 7 - 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) static inline int get_random_pressure(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 	return get_random_int() % VIVID_PRESSURE_LIMIT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) static void vivid_tch_buf_set(struct v4l2_pix_format *f,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 			      __s16 *tch_buf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 			      int index)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 	unsigned int x = index % f->width;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 	unsigned int y = index / f->width;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 	unsigned int offset = VIVID_MIN_PRESSURE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 	tch_buf[index] = offset + get_random_pressure();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 	offset /= 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 	if (x)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 		tch_buf[index - 1] = offset + get_random_pressure();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 	if (x < f->width - 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 		tch_buf[index + 1] = offset + get_random_pressure();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 	if (y)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 		tch_buf[index - f->width] = offset + get_random_pressure();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 	if (y < f->height - 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 		tch_buf[index + f->width] = offset + get_random_pressure();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 	offset /= 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 	if (x && y)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 		tch_buf[index - 1 - f->width] = offset + get_random_pressure();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 	if (x < f->width - 1 && y)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 		tch_buf[index + 1 - f->width] = offset + get_random_pressure();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 	if (x && y < f->height - 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 		tch_buf[index - 1 + f->width] = offset + get_random_pressure();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 	if (x < f->width - 1 && y < f->height - 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 		tch_buf[index + 1 + f->width] = offset + get_random_pressure();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) void vivid_fillbuff_tch(struct vivid_dev *dev, struct vivid_buffer *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 	struct v4l2_pix_format *f = &dev->tch_format;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 	int size = f->width * f->height;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 	int x, y, xstart, ystart, offset_x, offset_y;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 	unsigned int test_pattern, test_pat_idx, rand;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) 	__s16 *tch_buf = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) 	buf->vb.sequence = dev->touch_cap_seq_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) 	test_pattern = (buf->vb.sequence / TCH_SEQ_COUNT) % TEST_CASE_MAX;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) 	test_pat_idx = buf->vb.sequence % TCH_SEQ_COUNT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) 	vivid_fill_buff_noise(tch_buf, size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) 	if (test_pat_idx >= TCH_PATTERN_COUNT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) 		return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) 	if (test_pat_idx == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) 		dev->tch_pat_random = get_random_int();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) 	rand = dev->tch_pat_random;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) 	switch (test_pattern) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) 	case SINGLE_TAP:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) 		if (test_pat_idx == 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) 			vivid_tch_buf_set(f, tch_buf, rand % size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) 	case DOUBLE_TAP:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) 		if (test_pat_idx == 2 || test_pat_idx == 4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) 			vivid_tch_buf_set(f, tch_buf, rand % size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) 	case TRIPLE_TAP:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) 		if (test_pat_idx == 2 || test_pat_idx == 4 || test_pat_idx == 6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) 			vivid_tch_buf_set(f, tch_buf, rand % size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) 	case MOVE_LEFT_TO_RIGHT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) 		vivid_tch_buf_set(f, tch_buf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) 				  (rand % f->height) * f->width +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) 				  test_pat_idx *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) 				  (f->width / TCH_PATTERN_COUNT));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) 	case ZOOM_IN:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) 		x = f->width / 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) 		y = f->height / 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) 		offset_x = ((TCH_PATTERN_COUNT - 1 - test_pat_idx) * x) /
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) 				TCH_PATTERN_COUNT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) 		offset_y = ((TCH_PATTERN_COUNT - 1 - test_pat_idx) * y) /
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) 				TCH_PATTERN_COUNT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) 		vivid_tch_buf_set(f, tch_buf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) 				  (x - offset_x) + f->width * (y - offset_y));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) 		vivid_tch_buf_set(f, tch_buf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) 				  (x + offset_x) + f->width * (y + offset_y));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) 	case ZOOM_OUT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) 		x = f->width / 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) 		y = f->height / 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) 		offset_x = (test_pat_idx * x) / TCH_PATTERN_COUNT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) 		offset_y = (test_pat_idx * y) / TCH_PATTERN_COUNT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) 		vivid_tch_buf_set(f, tch_buf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) 				  (x - offset_x) + f->width * (y - offset_y));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) 		vivid_tch_buf_set(f, tch_buf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) 				  (x + offset_x) + f->width * (y + offset_y));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) 	case PALM_PRESS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) 		for (x = 0; x < f->width; x++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) 			for (y = f->height / 2; y < f->height; y++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) 				tch_buf[x + f->width * y] = VIVID_MIN_PRESSURE +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) 							get_random_pressure();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) 	case MULTIPLE_PRESS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) 		/* 16 pressure points */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) 		for (y = 0; y < 4; y++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) 			for (x = 0; x < 4; x++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) 				ystart = (y * f->height) / 4 + f->height / 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) 				xstart = (x * f->width) / 4 + f->width / 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) 				vivid_tch_buf_set(f, tch_buf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) 						  ystart * f->width + xstart);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) 			}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) #ifdef __BIG_ENDIAN__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) 	for (x = 0; x < size; x++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) 		tch_buf[x] = (__force s16)__cpu_to_le16((u16)tch_buf[x]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) }