342 lines
8.8 KiB
C
342 lines
8.8 KiB
C
|
// SPDX-License-Identifier: GPL-2.0-only
|
||
|
|
/*
|
||
|
|
* vivid-touch-cap.c - touch support functions.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "vivid-core.h"
|
||
|
|
#include "vivid-kthread-touch.h"
|
||
|
|
#include "vivid-vid-common.h"
|
||
|
|
#include "vivid-touch-cap.h"
|
||
|
|
|
||
|
|
static int touch_cap_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers,
|
||
|
|
unsigned int *nplanes, unsigned int sizes[],
|
||
|
|
struct device *alloc_devs[])
|
||
|
|
{
|
||
|
|
struct vivid_dev *dev = vb2_get_drv_priv(vq);
|
||
|
|
struct v4l2_pix_format *f = &dev->tch_format;
|
||
|
|
unsigned int size = f->sizeimage;
|
||
|
|
|
||
|
|
if (*nplanes) {
|
||
|
|
if (sizes[0] < size)
|
||
|
|
return -EINVAL;
|
||
|
|
} else {
|
||
|
|
sizes[0] = size;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (vq->num_buffers + *nbuffers < 2)
|
||
|
|
*nbuffers = 2 - vq->num_buffers;
|
||
|
|
|
||
|
|
*nplanes = 1;
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int touch_cap_buf_prepare(struct vb2_buffer *vb)
|
||
|
|
{
|
||
|
|
struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
|
||
|
|
struct v4l2_pix_format *f = &dev->tch_format;
|
||
|
|
unsigned int size = f->sizeimage;
|
||
|
|
|
||
|
|
if (dev->buf_prepare_error) {
|
||
|
|
/*
|
||
|
|
* Error injection: test what happens if buf_prepare() returns
|
||
|
|
* an error.
|
||
|
|
*/
|
||
|
|
dev->buf_prepare_error = false;
|
||
|
|
return -EINVAL;
|
||
|
|
}
|
||
|
|
if (vb2_plane_size(vb, 0) < size) {
|
||
|
|
dprintk(dev, 1, "%s data will not fit into plane (%lu < %u)\n",
|
||
|
|
__func__, vb2_plane_size(vb, 0), size);
|
||
|
|
return -EINVAL;
|
||
|
|
}
|
||
|
|
vb2_set_plane_payload(vb, 0, size);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void touch_cap_buf_queue(struct vb2_buffer *vb)
|
||
|
|
{
|
||
|
|
struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
|
||
|
|
struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
|
||
|
|
struct vivid_buffer *buf = container_of(vbuf, struct vivid_buffer, vb);
|
||
|
|
|
||
|
|
vbuf->field = V4L2_FIELD_NONE;
|
||
|
|
spin_lock(&dev->slock);
|
||
|
|
list_add_tail(&buf->list, &dev->touch_cap_active);
|
||
|
|
spin_unlock(&dev->slock);
|
||
|
|
}
|
||
|
|
|
||
|
|
static int touch_cap_start_streaming(struct vb2_queue *vq, unsigned int count)
|
||
|
|
{
|
||
|
|
struct vivid_dev *dev = vb2_get_drv_priv(vq);
|
||
|
|
int err;
|
||
|
|
|
||
|
|
dev->touch_cap_seq_count = 0;
|
||
|
|
if (dev->start_streaming_error) {
|
||
|
|
dev->start_streaming_error = false;
|
||
|
|
err = -EINVAL;
|
||
|
|
} else {
|
||
|
|
err = vivid_start_generating_touch_cap(dev);
|
||
|
|
}
|
||
|
|
if (err) {
|
||
|
|
struct vivid_buffer *buf, *tmp;
|
||
|
|
|
||
|
|
list_for_each_entry_safe(buf, tmp,
|
||
|
|
&dev->touch_cap_active, list) {
|
||
|
|
list_del(&buf->list);
|
||
|
|
vb2_buffer_done(&buf->vb.vb2_buf,
|
||
|
|
VB2_BUF_STATE_QUEUED);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return err;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* abort streaming and wait for last buffer */
|
||
|
|
static void touch_cap_stop_streaming(struct vb2_queue *vq)
|
||
|
|
{
|
||
|
|
struct vivid_dev *dev = vb2_get_drv_priv(vq);
|
||
|
|
|
||
|
|
vivid_stop_generating_touch_cap(dev);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void touch_cap_buf_request_complete(struct vb2_buffer *vb)
|
||
|
|
{
|
||
|
|
struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
|
||
|
|
|
||
|
|
v4l2_ctrl_request_complete(vb->req_obj.req, &dev->ctrl_hdl_touch_cap);
|
||
|
|
}
|
||
|
|
|
||
|
|
const struct vb2_ops vivid_touch_cap_qops = {
|
||
|
|
.queue_setup = touch_cap_queue_setup,
|
||
|
|
.buf_prepare = touch_cap_buf_prepare,
|
||
|
|
.buf_queue = touch_cap_buf_queue,
|
||
|
|
.start_streaming = touch_cap_start_streaming,
|
||
|
|
.stop_streaming = touch_cap_stop_streaming,
|
||
|
|
.buf_request_complete = touch_cap_buf_request_complete,
|
||
|
|
.wait_prepare = vb2_ops_wait_prepare,
|
||
|
|
.wait_finish = vb2_ops_wait_finish,
|
||
|
|
};
|
||
|
|
|
||
|
|
int vivid_enum_fmt_tch(struct file *file, void *priv, struct v4l2_fmtdesc *f)
|
||
|
|
{
|
||
|
|
if (f->index)
|
||
|
|
return -EINVAL;
|
||
|
|
|
||
|
|
f->pixelformat = V4L2_TCH_FMT_DELTA_TD16;
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
int vivid_g_fmt_tch(struct file *file, void *priv, struct v4l2_format *f)
|
||
|
|
{
|
||
|
|
struct vivid_dev *dev = video_drvdata(file);
|
||
|
|
|
||
|
|
if (dev->multiplanar)
|
||
|
|
return -ENOTTY;
|
||
|
|
f->fmt.pix = dev->tch_format;
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
int vivid_g_fmt_tch_mplane(struct file *file, void *priv, struct v4l2_format *f)
|
||
|
|
{
|
||
|
|
struct vivid_dev *dev = video_drvdata(file);
|
||
|
|
struct v4l2_format sp_fmt;
|
||
|
|
|
||
|
|
if (!dev->multiplanar)
|
||
|
|
return -ENOTTY;
|
||
|
|
sp_fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
||
|
|
sp_fmt.fmt.pix = dev->tch_format;
|
||
|
|
fmt_sp2mp(&sp_fmt, f);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
int vivid_g_parm_tch(struct file *file, void *priv,
|
||
|
|
struct v4l2_streamparm *parm)
|
||
|
|
{
|
||
|
|
struct vivid_dev *dev = video_drvdata(file);
|
||
|
|
|
||
|
|
if (parm->type != (dev->multiplanar ?
|
||
|
|
V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE :
|
||
|
|
V4L2_BUF_TYPE_VIDEO_CAPTURE))
|
||
|
|
return -EINVAL;
|
||
|
|
|
||
|
|
parm->parm.capture.capability = V4L2_CAP_TIMEPERFRAME;
|
||
|
|
parm->parm.capture.timeperframe = dev->timeperframe_tch_cap;
|
||
|
|
parm->parm.capture.readbuffers = 1;
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
int vivid_enum_input_tch(struct file *file, void *priv, struct v4l2_input *inp)
|
||
|
|
{
|
||
|
|
if (inp->index)
|
||
|
|
return -EINVAL;
|
||
|
|
|
||
|
|
inp->type = V4L2_INPUT_TYPE_TOUCH;
|
||
|
|
strscpy(inp->name, "Vivid Touch", sizeof(inp->name));
|
||
|
|
inp->capabilities = 0;
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
int vivid_g_input_tch(struct file *file, void *priv, unsigned int *i)
|
||
|
|
{
|
||
|
|
*i = 0;
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
int vivid_set_touch(struct vivid_dev *dev, unsigned int i)
|
||
|
|
{
|
||
|
|
struct v4l2_pix_format *f = &dev->tch_format;
|
||
|
|
|
||
|
|
if (i)
|
||
|
|
return -EINVAL;
|
||
|
|
|
||
|
|
f->pixelformat = V4L2_TCH_FMT_DELTA_TD16;
|
||
|
|
f->width = VIVID_TCH_WIDTH;
|
||
|
|
f->height = VIVID_TCH_HEIGHT;
|
||
|
|
f->field = V4L2_FIELD_NONE;
|
||
|
|
f->colorspace = V4L2_COLORSPACE_RAW;
|
||
|
|
f->bytesperline = f->width * sizeof(s16);
|
||
|
|
f->sizeimage = f->width * f->height * sizeof(s16);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
int vivid_s_input_tch(struct file *file, void *priv, unsigned int i)
|
||
|
|
{
|
||
|
|
return vivid_set_touch(video_drvdata(file), i);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void vivid_fill_buff_noise(__s16 *tch_buf, int size)
|
||
|
|
{
|
||
|
|
int i;
|
||
|
|
|
||
|
|
/* Fill 10% of the values within range -3 and 3, zero the others */
|
||
|
|
for (i = 0; i < size; i++) {
|
||
|
|
unsigned int rand = get_random_u32();
|
||
|
|
|
||
|
|
if (rand % 10)
|
||
|
|
tch_buf[i] = 0;
|
||
|
|
else
|
||
|
|
tch_buf[i] = (rand / 10) % 7 - 3;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline int get_random_pressure(void)
|
||
|
|
{
|
||
|
|
return prandom_u32_max(VIVID_PRESSURE_LIMIT);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void vivid_tch_buf_set(struct v4l2_pix_format *f,
|
||
|
|
__s16 *tch_buf,
|
||
|
|
int index)
|
||
|
|
{
|
||
|
|
unsigned int x = index % f->width;
|
||
|
|
unsigned int y = index / f->width;
|
||
|
|
unsigned int offset = VIVID_MIN_PRESSURE;
|
||
|
|
|
||
|
|
tch_buf[index] = offset + get_random_pressure();
|
||
|
|
offset /= 2;
|
||
|
|
if (x)
|
||
|
|
tch_buf[index - 1] = offset + get_random_pressure();
|
||
|
|
if (x < f->width - 1)
|
||
|
|
tch_buf[index + 1] = offset + get_random_pressure();
|
||
|
|
if (y)
|
||
|
|
tch_buf[index - f->width] = offset + get_random_pressure();
|
||
|
|
if (y < f->height - 1)
|
||
|
|
tch_buf[index + f->width] = offset + get_random_pressure();
|
||
|
|
offset /= 2;
|
||
|
|
if (x && y)
|
||
|
|
tch_buf[index - 1 - f->width] = offset + get_random_pressure();
|
||
|
|
if (x < f->width - 1 && y)
|
||
|
|
tch_buf[index + 1 - f->width] = offset + get_random_pressure();
|
||
|
|
if (x && y < f->height - 1)
|
||
|
|
tch_buf[index - 1 + f->width] = offset + get_random_pressure();
|
||
|
|
if (x < f->width - 1 && y < f->height - 1)
|
||
|
|
tch_buf[index + 1 + f->width] = offset + get_random_pressure();
|
||
|
|
}
|
||
|
|
|
||
|
|
void vivid_fillbuff_tch(struct vivid_dev *dev, struct vivid_buffer *buf)
|
||
|
|
{
|
||
|
|
struct v4l2_pix_format *f = &dev->tch_format;
|
||
|
|
int size = f->width * f->height;
|
||
|
|
int x, y, xstart, ystart, offset_x, offset_y;
|
||
|
|
unsigned int test_pattern, test_pat_idx, rand;
|
||
|
|
|
||
|
|
__s16 *tch_buf = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
|
||
|
|
|
||
|
|
buf->vb.sequence = dev->touch_cap_with_seq_wrap_count;
|
||
|
|
test_pattern = (buf->vb.sequence / TCH_SEQ_COUNT) % TEST_CASE_MAX;
|
||
|
|
test_pat_idx = buf->vb.sequence % TCH_SEQ_COUNT;
|
||
|
|
|
||
|
|
vivid_fill_buff_noise(tch_buf, size);
|
||
|
|
|
||
|
|
if (test_pat_idx >= TCH_PATTERN_COUNT)
|
||
|
|
return;
|
||
|
|
|
||
|
|
if (test_pat_idx == 0)
|
||
|
|
dev->tch_pat_random = get_random_u32();
|
||
|
|
rand = dev->tch_pat_random;
|
||
|
|
|
||
|
|
switch (test_pattern) {
|
||
|
|
case SINGLE_TAP:
|
||
|
|
if (test_pat_idx == 2)
|
||
|
|
vivid_tch_buf_set(f, tch_buf, rand % size);
|
||
|
|
break;
|
||
|
|
case DOUBLE_TAP:
|
||
|
|
if (test_pat_idx == 2 || test_pat_idx == 4)
|
||
|
|
vivid_tch_buf_set(f, tch_buf, rand % size);
|
||
|
|
break;
|
||
|
|
case TRIPLE_TAP:
|
||
|
|
if (test_pat_idx == 2 || test_pat_idx == 4 || test_pat_idx == 6)
|
||
|
|
vivid_tch_buf_set(f, tch_buf, rand % size);
|
||
|
|
break;
|
||
|
|
case MOVE_LEFT_TO_RIGHT:
|
||
|
|
vivid_tch_buf_set(f, tch_buf,
|
||
|
|
(rand % f->height) * f->width +
|
||
|
|
test_pat_idx *
|
||
|
|
(f->width / TCH_PATTERN_COUNT));
|
||
|
|
break;
|
||
|
|
case ZOOM_IN:
|
||
|
|
x = f->width / 2;
|
||
|
|
y = f->height / 2;
|
||
|
|
offset_x = ((TCH_PATTERN_COUNT - 1 - test_pat_idx) * x) /
|
||
|
|
TCH_PATTERN_COUNT;
|
||
|
|
offset_y = ((TCH_PATTERN_COUNT - 1 - test_pat_idx) * y) /
|
||
|
|
TCH_PATTERN_COUNT;
|
||
|
|
vivid_tch_buf_set(f, tch_buf,
|
||
|
|
(x - offset_x) + f->width * (y - offset_y));
|
||
|
|
vivid_tch_buf_set(f, tch_buf,
|
||
|
|
(x + offset_x) + f->width * (y + offset_y));
|
||
|
|
break;
|
||
|
|
case ZOOM_OUT:
|
||
|
|
x = f->width / 2;
|
||
|
|
y = f->height / 2;
|
||
|
|
offset_x = (test_pat_idx * x) / TCH_PATTERN_COUNT;
|
||
|
|
offset_y = (test_pat_idx * y) / TCH_PATTERN_COUNT;
|
||
|
|
vivid_tch_buf_set(f, tch_buf,
|
||
|
|
(x - offset_x) + f->width * (y - offset_y));
|
||
|
|
vivid_tch_buf_set(f, tch_buf,
|
||
|
|
(x + offset_x) + f->width * (y + offset_y));
|
||
|
|
break;
|
||
|
|
case PALM_PRESS:
|
||
|
|
for (x = 0; x < f->width; x++)
|
||
|
|
for (y = f->height / 2; y < f->height; y++)
|
||
|
|
tch_buf[x + f->width * y] = VIVID_MIN_PRESSURE +
|
||
|
|
get_random_pressure();
|
||
|
|
break;
|
||
|
|
case MULTIPLE_PRESS:
|
||
|
|
/* 16 pressure points */
|
||
|
|
for (y = 0; y < 4; y++) {
|
||
|
|
for (x = 0; x < 4; x++) {
|
||
|
|
ystart = (y * f->height) / 4 + f->height / 8;
|
||
|
|
xstart = (x * f->width) / 4 + f->width / 8;
|
||
|
|
vivid_tch_buf_set(f, tch_buf,
|
||
|
|
ystart * f->width + xstart);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
#ifdef __BIG_ENDIAN__
|
||
|
|
for (x = 0; x < size; x++)
|
||
|
|
tch_buf[x] = (__force s16)__cpu_to_le16((u16)tch_buf[x]);
|
||
|
|
#endif
|
||
|
|
}
|