#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 (*nplanes != 1)
return -EINVAL;
return sizes[0] < size ? -EINVAL : 0;
}
*nplanes = 1;
sizes[0] = size;
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) {
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;
}
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,
};
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;
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 get_random_u32_below(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:
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
}
