Upgrade to videobuf2 libraries.
Signed-off-by: Dean Anderson <linux-dev@xxxxxxxxxxxx>
---
drivers/media/usb/s2255/s2255drv.c | 507
+++++++++++-------------------------
1 file changed, 148 insertions(+), 359 deletions(-)
diff --git a/drivers/media/usb/s2255/s2255drv.c
b/drivers/media/usb/s2255/s2255drv.c
index e0663ce..3f0d1a6 100644
--- a/drivers/media/usb/s2255/s2255drv.c
+++ b/drivers/media/usb/s2255/s2255drv.c
@@ -45,14 +45,14 @@
#include <linux/mm.h>
#include <linux/vmalloc.h>
#include <linux/usb.h>
-#include <media/videobuf-vmalloc.h>
+#include <media/videobuf2-vmalloc.h>
#include <media/v4l2-common.h>
#include <media/v4l2-device.h>
#include <media/v4l2-ioctl.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-event.h>
-#define S2255_VERSION "1.24.1"
+#define S2255_VERSION "1.25.1"
#define FIRMWARE_FILE_NAME "f2255usb.bin"
/* default JPEG quality */
@@ -229,8 +229,6 @@ struct s2255_vc {
struct v4l2_captureparm cap_parm;
int cur_frame;
int last_frame;
-
- int b_acquire;
/* allocated image size */
unsigned long req_image_size;
/* received packet size */
@@ -249,8 +247,12 @@ struct s2255_vc {
int vidstatus_ready;
unsigned int width;
unsigned int height;
+ enum v4l2_field field;
const struct s2255_fmt *fmt;
int idx; /* channel number on device, 0-3 */
+ struct vb2_queue vb_vidq;
+ struct mutex vb_lock; /* streaming lock */
+ spinlock_t qlock;
};
@@ -270,7 +272,6 @@ struct s2255_dev {
u32 cc; /* current channel */
int frame_ready;
int chn_ready;
- spinlock_t slock;
/* dsp firmware version (f2255usb.bin) */
int dsp_fw_ver;
u16 pid; /* product id */
@@ -292,16 +293,10 @@ struct s2255_fmt {
/* buffer for one video frame */
struct s2255_buffer {
/* common v4l buffer stuff -- must be first */
- struct videobuf_buffer vb;
+ struct vb2_buffer vb;
+ struct list_head list;
};
-struct s2255_fh {
- /* this must be the first field in this struct */
- struct v4l2_fh fh;
- struct videobuf_queue vb_vidq;
- struct s2255_vc *vc;
- int resources;
-};
/* current cypress EEPROM firmware version */
#define S2255_CUR_USB_FWVER ((3 << 8) | 12)
@@ -569,21 +564,20 @@ static int s2255_got_frame(struct s2255_vc *vc,
int jpgsize)
struct s2255_dev *dev = to_s2255_dev(vc->vdev.v4l2_dev);
unsigned long flags = 0;
int rc = 0;
- spin_lock_irqsave(&dev->slock, flags);
+ spin_lock_irqsave(&vc->qlock, flags);
if (list_empty(&vc->buf_list)) {
dprintk(dev, 1, "No active queue to serve\n");
rc = -1;
goto unlock;
}
buf = list_entry(vc->buf_list.next,
- struct s2255_buffer, vb.queue);
- list_del(&buf->vb.queue);
- v4l2_get_timestamp(&buf->vb.ts);
+ struct s2255_buffer, list);
+ list_del(&buf->list);
+ v4l2_get_timestamp(&buf->vb.v4l2_buf.timestamp);
s2255_fillbuff(vc, buf, jpgsize);
- wake_up(&buf->vb.done);
- dprintk(dev, 2, "%s: [buf/i] [%p/%d]\n", __func__, buf, buf->vb.i);
+ dprintk(dev, 2, "%s: [buf] [%p]\n", __func__, buf);
unlock:
- spin_unlock_irqrestore(&dev->slock, flags);
+ spin_unlock_irqrestore(&vc->qlock, flags);
return rc;
}
@@ -615,7 +609,7 @@ static void s2255_fillbuff(struct s2255_vc *vc,
{
int pos = 0;
const char *tmpbuf;
- char *vbuf = videobuf_to_vmalloc(&buf->vb);
+ char *vbuf = vb2_plane_vaddr(&buf->vb, 0);
unsigned long last_frame;
struct s2255_dev *dev = vc->dev;
@@ -629,21 +623,21 @@ static void s2255_fillbuff(struct s2255_vc *vc,
case V4L2_PIX_FMT_YUYV:
case V4L2_PIX_FMT_UYVY:
planar422p_to_yuv_packed((const unsigned char *)tmpbuf,
- vbuf, buf->vb.width,
- buf->vb.height,
+ vbuf, vc->width,
+ vc->height,
vc->fmt->fourcc);
break;
case V4L2_PIX_FMT_GREY:
- memcpy(vbuf, tmpbuf, buf->vb.width * buf->vb.height);
+ memcpy(vbuf, tmpbuf, vc->width * vc->height);
break;
case V4L2_PIX_FMT_JPEG:
case V4L2_PIX_FMT_MJPEG:
- buf->vb.size = jpgsize;
- memcpy(vbuf, tmpbuf, buf->vb.size);
+ buf->vb.v4l2_buf.length = jpgsize;
+ memcpy(vbuf, tmpbuf, jpgsize);
break;
case V4L2_PIX_FMT_YUV422P:
memcpy(vbuf, tmpbuf,
- buf->vb.width * buf->vb.height * 2);
+ vc->width * vc->height * 2);
break;
default:
pr_info("s2255: unknown format?\n");
@@ -656,9 +650,10 @@ static void s2255_fillbuff(struct s2255_vc *vc,
dprintk(dev, 2, "s2255fill at : Buffer 0x%08lx size= %d\n",
(unsigned long)vbuf, pos);
/* tell v4l buffer was filled */
- buf->vb.field_count = vc->frame_count * 2;
- v4l2_get_timestamp(&buf->vb.ts);
- buf->vb.state = VIDEOBUF_DONE;
+ buf->vb.v4l2_buf.field = vc->field;
+ buf->vb.v4l2_buf.sequence = vc->frame_count;
+ v4l2_get_timestamp(&buf->vb.v4l2_buf.timestamp);
+ vb2_buffer_done(&buf->vb, VB2_BUF_STATE_DONE);
}
@@ -666,36 +661,27 @@ static void s2255_fillbuff(struct s2255_vc *vc,
Videobuf operations
------------------------------------------------------------------*/
-static int buffer_setup(struct videobuf_queue *vq, unsigned int
*nbuffers,
- unsigned int *size)
+static int queue_setup(struct vb2_queue *vq, const struct v4l2_format
*fmt,
+ unsigned int *nbuffers, unsigned int *nplanes,
+ unsigned int sizes[], void *alloc_ctxs[])
{
- struct s2255_fh *fh = vq->priv_data;
- struct s2255_vc *vc = fh->vc;
-
- *size = vc->width * vc->height * (vc->fmt->depth >> 3);
-
+ struct s2255_vc *vc = vb2_get_drv_priv(vq);
if (*nbuffers < S2255_MIN_BUFS)
*nbuffers = S2255_MIN_BUFS;
-
+ *nplanes = 1;
+ sizes[0] = vc->width * vc->height * (vc->fmt->depth >> 3);
return 0;
}
-static void free_buffer(struct videobuf_queue *vq, struct
s2255_buffer *buf)
-{
- videobuf_vmalloc_free(&buf->vb);
- buf->vb.state = VIDEOBUF_NEEDS_INIT;
-}
-
-static int buffer_prepare(struct videobuf_queue *vq, struct
videobuf_buffer *vb,
- enum v4l2_field field)
+static int buffer_prepare(struct vb2_buffer *vb)
{
- struct s2255_fh *fh = vq->priv_data;
- struct s2255_vc *vc = fh->vc;
+ struct s2255_vc *vc = vb2_get_drv_priv(vb->vb2_queue);
struct s2255_buffer *buf = container_of(vb, struct s2255_buffer,
vb);
- int rc;
int w = vc->width;
int h = vc->height;
- dprintk(vc->dev, 4, "%s, field=%d\n", __func__, field);
+ unsigned long size;
+
+ dprintk(vc->dev, 4, "%s\n", __func__);
if (vc->fmt == NULL)
return -EINVAL;
@@ -706,93 +692,45 @@ static int buffer_prepare(struct videobuf_queue
*vq, struct videobuf_buffer *vb,
dprintk(vc->dev, 4, "invalid buffer prepare\n");
return -EINVAL;
}
- buf->vb.size = w * h * (vc->fmt->depth >> 3);
- if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size) {
+ size = w * h * (vc->fmt->depth >> 3);
+ if (vb2_plane_size(vb, 0) < size) {
dprintk(vc->dev, 4, "invalid buffer prepare\n");
return -EINVAL;
}
- buf->vb.width = w;
- buf->vb.height = h;
- buf->vb.field = field;
-
- if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
- rc = videobuf_iolock(vq, &buf->vb, NULL);
- if (rc < 0)
- goto fail;
- }
-
- buf->vb.state = VIDEOBUF_PREPARED;
+ vb2_set_plane_payload(&buf->vb, 0, size);
return 0;
-fail:
- free_buffer(vq, buf);
- return rc;
}
-static void buffer_queue(struct videobuf_queue *vq, struct
videobuf_buffer *vb)
+static void buffer_queue(struct vb2_buffer *vb)
{
struct s2255_buffer *buf = container_of(vb, struct s2255_buffer,
vb);
- struct s2255_fh *fh = vq->priv_data;
- struct s2255_vc *vc = fh->vc;
+ struct s2255_vc *vc = vb2_get_drv_priv(vb->vb2_queue);
+ unsigned long flags = 0;
dprintk(vc->dev, 1, "%s\n", __func__);
- buf->vb.state = VIDEOBUF_QUEUED;
- list_add_tail(&buf->vb.queue, &vc->buf_list);
+ spin_lock_irqsave(&vc->qlock, flags);
+ list_add_tail(&buf->list, &vc->buf_list);
+ spin_unlock_irqrestore(&vc->qlock, flags);
}
-static void buffer_release(struct videobuf_queue *vq,
- struct videobuf_buffer *vb)
-{
- struct s2255_buffer *buf = container_of(vb, struct s2255_buffer,
vb);
- struct s2255_fh *fh = vq->priv_data;
- struct s2255_vc *vc = fh->vc;
- dprintk(vc->dev, 4, "%s %d\n", __func__, vc->idx);
- free_buffer(vq, buf);
-}
+static int start_streaming(struct vb2_queue *vq, unsigned int count);
+static int stop_streaming(struct vb2_queue *vq);
-static struct videobuf_queue_ops s2255_video_qops = {
- .buf_setup = buffer_setup,
+static struct vb2_ops s2255_video_qops = {
+ .queue_setup = queue_setup,
.buf_prepare = buffer_prepare,
.buf_queue = buffer_queue,
- .buf_release = buffer_release,
+ .start_streaming = start_streaming,
+ .stop_streaming = stop_streaming,
+ .wait_prepare = vb2_ops_wait_prepare,
+ .wait_finish = vb2_ops_wait_finish,
};
-
-static int res_get(struct s2255_fh *fh)
-{
- struct s2255_vc *vc = fh->vc;
- /* is it free? */
- if (vc->resources)
- return 0; /* no, someone else uses it */
- /* it's free, grab it */
- vc->resources = 1;
- fh->resources = 1;
- dprintk(vc->dev, 1, "s2255: res: get\n");
- return 1;
-}
-
-static int res_locked(struct s2255_fh *fh)
-{
- return fh->vc->resources;
-}
-
-static int res_check(struct s2255_fh *fh)
-{
- return fh->resources;
-}
-
-
-static void res_free(struct s2255_fh *fh)
-{
- struct s2255_vc *vc = fh->vc;
- vc->resources = 0;
- fh->resources = 0;
-}
-
static int vidioc_querycap(struct file *file, void *priv,
struct v4l2_capability *cap)
{
- struct s2255_fh *fh = file->private_data;
- struct s2255_dev *dev = fh->vc->dev;
+ struct s2255_vc *vc = video_drvdata(file);
+ struct s2255_dev *dev = vc->dev;
strlcpy(cap->driver, "s2255", sizeof(cap->driver));
strlcpy(cap->card, "s2255", sizeof(cap->card));
@@ -820,8 +758,7 @@ static int vidioc_enum_fmt_vid_cap(struct file
*file, void *priv,
static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
- struct s2255_fh *fh = priv;
- struct s2255_vc *vc = fh->vc;
+ struct s2255_vc *vc = video_drvdata(file);
int is_ntsc = vc->std & V4L2_STD_525_60;
f->fmt.pix.width = vc->width;
@@ -844,8 +781,7 @@ static int vidioc_try_fmt_vid_cap(struct file
*file, void *priv,
{
const struct s2255_fmt *fmt;
enum v4l2_field field;
- struct s2255_fh *fh = priv;
- struct s2255_vc *vc = fh->vc;
+ struct s2255_vc *vc = video_drvdata(file);
int is_ntsc = vc->std & V4L2_STD_525_60;
fmt = format_by_fourcc(f->fmt.pix.pixelformat);
@@ -905,14 +841,13 @@ static int vidioc_try_fmt_vid_cap(struct file
*file, void *priv,
static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
- struct s2255_fh *fh = priv;
- struct s2255_vc *vc = fh->vc;
+ struct s2255_vc *vc = video_drvdata(file);
const struct s2255_fmt *fmt;
- struct videobuf_queue *q = &fh->vb_vidq;
+ struct vb2_queue *q = &vc->vb_vidq;
struct s2255_mode mode;
int ret;
- ret = vidioc_try_fmt_vid_cap(file, fh, f);
+ ret = vidioc_try_fmt_vid_cap(file, vc, f);
if (ret < 0)
return ret;
@@ -922,24 +857,16 @@ static int vidioc_s_fmt_vid_cap(struct file
*file, void *priv,
if (fmt == NULL)
return -EINVAL;
- mutex_lock(&q->vb_lock);
-
- if (videobuf_queue_is_busy(&fh->vb_vidq)) {
+ if (vb2_is_busy(q)) {
dprintk(vc->dev, 1, "queue busy\n");
- ret = -EBUSY;
- goto out_s_fmt;
+ return -EBUSY;
}
- if (res_locked(fh)) {
- dprintk(vc->dev, 1, "%s: channel busy\n", __func__);
- ret = -EBUSY;
- goto out_s_fmt;
- }
mode = vc->mode;
vc->fmt = fmt;
vc->width = f->fmt.pix.width;
vc->height = f->fmt.pix.height;
- fh->vb_vidq.field = f->fmt.pix.field;
+ vc->field = f->fmt.pix.field;
if (vc->width > norm_minw(vc)) {
if (vc->height > norm_minh(vc)) {
if (vc->cap_parm.capturemode &
@@ -984,44 +911,9 @@ static int vidioc_s_fmt_vid_cap(struct file
*file, void *priv,
mode.restart = 1;
vc->mode = mode;
(void) s2255_set_mode(vc, &mode);
- ret = 0;
-out_s_fmt:
- mutex_unlock(&q->vb_lock);
- return ret;
-}
-
-static int vidioc_reqbufs(struct file *file, void *priv,
- struct v4l2_requestbuffers *p)
-{
- int rc;
- struct s2255_fh *fh = priv;
- rc = videobuf_reqbufs(&fh->vb_vidq, p);
- return rc;
-}
-
-static int vidioc_querybuf(struct file *file, void *priv, struct
v4l2_buffer *p)
-{
- int rc;
- struct s2255_fh *fh = priv;
- rc = videobuf_querybuf(&fh->vb_vidq, p);
- return rc;
-}
-
-static int vidioc_qbuf(struct file *file, void *priv, struct
v4l2_buffer *p)
-{
- int rc;
- struct s2255_fh *fh = priv;
- rc = videobuf_qbuf(&fh->vb_vidq, p);
- return rc;
+ return 0;
}
-static int vidioc_dqbuf(struct file *file, void *priv, struct
v4l2_buffer *p)
-{
- int rc;
- struct s2255_fh *fh = priv;
- rc = videobuf_dqbuf(&fh->vb_vidq, p, file->f_flags & O_NONBLOCK);
- return rc;
-}
/* write to the configuration pipe, synchronously */
static int s2255_write_config(struct usb_device *udev, unsigned char
*pbuf,
@@ -1199,24 +1091,11 @@ static int s2255_cmd_status(struct s2255_vc
*vc, u32 *pstatus)
return res;
}
-static int vidioc_streamon(struct file *file, void *priv, enum
v4l2_buf_type i)
+static int start_streaming(struct vb2_queue *vq, unsigned int count)
{
- int res;
- struct s2255_fh *fh = priv;
- struct s2255_vc *vc = fh->vc;
- struct s2255_dev *dev = vc->dev;
+ struct s2255_vc *vc = vb2_get_drv_priv(vq);
int j;
- dprintk(dev, 4, "%s\n", __func__);
- if (i != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
- dev_err(&dev->udev->dev, "invalid fh type1\n");
- return -EINVAL;
- }
-
- if (!res_get(fh)) {
- s2255_dev_err(&dev->udev->dev, "stream busy\n");
- return -EBUSY;
- }
vc->last_frame = -1;
vc->bad_payload = 0;
vc->cur_frame = 0;
@@ -1225,48 +1104,40 @@ static int vidioc_streamon(struct file *file,
void *priv, enum v4l2_buf_type i)
vc->buffer.frame[j].ulState = S2255_READ_IDLE;
vc->buffer.frame[j].cur_size = 0;
}
- res = videobuf_streamon(&fh->vb_vidq);
- if (res != 0) {
- res_free(fh);
- return res;
- }
- res = s2255_start_acquire(vc);
- if (res != 0) {
- res_free(fh);
- return res;
- }
- vc->b_acquire = 1;
- return res;
+ return s2255_start_acquire(vc);
}
-static int vidioc_streamoff(struct file *file, void *priv, enum
v4l2_buf_type i)
+/* abort streaming and wait for last buffer */
+static int stop_streaming(struct vb2_queue *vq)
{
- struct s2255_fh *fh = priv;
- struct s2255_vc *vc = fh->vc;
- dprintk(vc->dev, 4, "%s\n, channel: %d", __func__, vc->idx);
-
- if (i != V4L2_BUF_TYPE_VIDEO_CAPTURE)
- return -EINVAL;
- s2255_stop_acquire(vc);
- videobuf_streamoff(&fh->vb_vidq);
- res_free(fh);
+ struct s2255_vc *vc = vb2_get_drv_priv(vq);
+ struct s2255_buffer *buf, *node;
+ unsigned long flags;
+ (void) s2255_stop_acquire(vc);
+ spin_lock_irqsave(&vc->qlock, flags);
+ list_for_each_entry_safe(buf, node, &vc->buf_list, list) {
+ list_del(&buf->list);
+ vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR);
+ dprintk(vc->dev, 2, "[%p/%d] done\n",
+ buf, buf->vb.v4l2_buf.index);
+ }
+ spin_unlock_irqrestore(&vc->qlock, flags);
return 0;
}
static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id i)
{
- struct s2255_fh *fh = priv;
+ struct s2255_vc *vc = video_drvdata(file);
struct s2255_mode mode;
- struct videobuf_queue *q = &fh->vb_vidq;
- struct s2255_vc *vc = fh->vc;
- int ret = 0;
+ struct vb2_queue *q = &vc->vb_vidq;
+
+ /*
+ * Changing the standard implies a format change, which is not
allowed
+ * while buffers for use with streaming have already been allocated.
+ */
+ if (vb2_is_busy(q))
+ return -EBUSY;
- mutex_lock(&q->vb_lock);
- if (res_locked(fh)) {
- dprintk(vc->dev, 1, "can't change standard after started\n");
- ret = -EBUSY;
- goto out_s_std;
- }
mode = vc->mode;
if (i & V4L2_STD_525_60) {
dprintk(vc->dev, 4, "%s 60 Hz\n", __func__);
@@ -1287,22 +1158,17 @@ static int vidioc_s_std(struct file *file,
void *priv, v4l2_std_id i)
vc->width = LINE_SZ_4CIFS_PAL;
vc->height = NUM_LINES_4CIFS_PAL * 2;
}
- } else {
- ret = -EINVAL;
- goto out_s_std;
- }
+ } else
+ return -EINVAL;
vc->std = i;
if (mode.restart)
s2255_set_mode(vc, &mode);
-out_s_std:
- mutex_unlock(&q->vb_lock);
- return ret;
+ return 0;
}
static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id
*i)
{
- struct s2255_fh *fh = priv;
- struct s2255_vc *vc = fh->vc;
+ struct s2255_vc *vc = video_drvdata(file);
*i = vc->std;
return 0;
@@ -1318,8 +1184,7 @@ static int vidioc_g_std(struct file *file, void
*priv, v4l2_std_id *i)
static int vidioc_enum_input(struct file *file, void *priv,
struct v4l2_input *inp)
{
- struct s2255_fh *fh = priv;
- struct s2255_vc *vc = fh->vc;
+ struct s2255_vc *vc = video_drvdata(file);
struct s2255_dev *dev = vc->dev;
u32 status = 0;
@@ -1404,8 +1269,7 @@ static int s2255_s_ctrl(struct v4l2_ctrl *ctrl)
static int vidioc_g_jpegcomp(struct file *file, void *priv,
struct v4l2_jpegcompression *jc)
{
- struct s2255_fh *fh = priv;
- struct s2255_vc *vc = fh->vc;
+ struct s2255_vc *vc = video_drvdata(file);
memset(jc, 0, sizeof(*jc));
jc->quality = vc->jpegqual;
@@ -1416,8 +1280,8 @@ static int vidioc_g_jpegcomp(struct file *file,
void *priv,
static int vidioc_s_jpegcomp(struct file *file, void *priv,
const struct v4l2_jpegcompression *jc)
{
- struct s2255_fh *fh = priv;
- struct s2255_vc *vc = fh->vc;
+ struct s2255_vc *vc = video_drvdata(file);
+
if (jc->quality < 0 || jc->quality > 100)
return -EINVAL;
v4l2_ctrl_s_ctrl(vc->jpegqual_ctrl, jc->quality);
@@ -1428,9 +1292,9 @@ static int vidioc_s_jpegcomp(struct file *file,
void *priv,
static int vidioc_g_parm(struct file *file, void *priv,
struct v4l2_streamparm *sp)
{
- struct s2255_fh *fh = priv;
__u32 def_num, def_dem;
- struct s2255_vc *vc = fh->vc;
+ struct s2255_vc *vc = video_drvdata(file);
+
if (sp->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
return -EINVAL;
sp->parm.capture.capability = V4L2_CAP_TIMEPERFRAME;
@@ -1464,8 +1328,7 @@ static int vidioc_g_parm(struct file *file, void
*priv,
static int vidioc_s_parm(struct file *file, void *priv,
struct v4l2_streamparm *sp)
{
- struct s2255_fh *fh = priv;
- struct s2255_vc *vc = fh->vc;
+ struct s2255_vc *vc = video_drvdata(file);
struct s2255_mode mode;
int fdec = FDEC_1;
__u32 def_num, def_dem;
@@ -1473,8 +1336,8 @@ static int vidioc_s_parm(struct file *file, void
*priv,
return -EINVAL;
mode = vc->mode;
/* high quality capture mode requires a stream restart */
- if (vc->cap_parm.capturemode
- != sp->parm.capture.capturemode && res_locked(fh))
+ if ((vc->cap_parm.capturemode != sp->parm.capture.capturemode)
+ && vb2_is_streaming(&vc->vb_vidq))
return -EBUSY;
def_num = (mode.format == FORMAT_NTSC) ? 1001 : 1000;
def_dem = (mode.format == FORMAT_NTSC) ? 30000 : 25000;
@@ -1518,8 +1381,7 @@ static const struct v4l2_frmsize_discrete
pal_sizes[] = {
static int vidioc_enum_framesizes(struct file *file, void *priv,
struct v4l2_frmsizeenum *fe)
{
- struct s2255_fh *fh = priv;
- struct s2255_vc *vc = fh->vc;
+ struct s2255_vc *vc = video_drvdata(file);
int is_ntsc = vc->std & V4L2_STD_525_60;
const struct s2255_fmt *fmt;
@@ -1537,8 +1399,7 @@ static int vidioc_enum_framesizes(struct file
*file, void *priv,
static int vidioc_enum_frameintervals(struct file *file, void *priv,
struct v4l2_frmivalenum *fe)
{
- struct s2255_fh *fh = priv;
- struct s2255_vc *vc = fh->vc;
+ struct s2255_vc *vc = video_drvdata(file);
const struct s2255_fmt *fmt;
const struct v4l2_frmsize_discrete *sizes;
int is_ntsc = vc->std & V4L2_STD_525_60;
@@ -1570,16 +1431,18 @@ static int vidioc_enum_frameintervals(struct
file *file, void *priv,
return 0;
}
-static int __s2255_open(struct file *file)
+static int s2255_open(struct file *file)
{
- struct video_device *vdev = video_devdata(file);
struct s2255_vc *vc = video_drvdata(file);
- struct s2255_dev *dev = to_s2255_dev(vdev->v4l2_dev);
- struct s2255_fh *fh;
- enum v4l2_buf_type type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+ struct s2255_dev *dev = vc->dev;
int state;
- dprintk(dev, 1, "s2255: open called (dev=%s)\n",
- video_device_node_name(vdev));
+ int rc = 0;
+
+ rc = v4l2_fh_open(file);
+ if (rc != 0)
+ return rc;
+
+ dprintk(dev, 1, "s2255: %s\n", __func__);
state = atomic_read(&dev->fw_data->fw_state);
switch (state) {
case S2255_FW_DISCONNECTING:
@@ -1641,61 +1504,15 @@ static int __s2255_open(struct file *file)
pr_info("%s: unknown state\n", __func__);
return -EFAULT;
}
- /* allocate + initialize per filehandle data */
- fh = kzalloc(sizeof(*fh), GFP_KERNEL);
- if (NULL == fh)
- return -ENOMEM;
- v4l2_fh_init(&fh->fh, vdev);
- v4l2_fh_add(&fh->fh);
- file->private_data = &fh->fh;
- fh->vc = vc;
if (!vc->configured) {
/* configure channel to default state */
vc->fmt = &formats[0];
s2255_set_mode(vc, &vc->mode);
vc->configured = 1;
}
- dprintk(dev, 1, "%s: dev=%s type=%s\n", __func__,
- video_device_node_name(vdev), v4l2_type_names[type]);
- dprintk(dev, 2, "%s: fh=0x%08lx, dev=0x%08lx\n", __func__,
- (unsigned long)fh, (unsigned long)dev);
- dprintk(dev, 4, "%s: list_empty active=%d\n", __func__,
- list_empty(&vc->buf_list));
- videobuf_queue_vmalloc_init(&fh->vb_vidq, &s2255_video_qops,
- NULL, &dev->slock,
- V4L2_BUF_TYPE_VIDEO_CAPTURE,
- V4L2_FIELD_INTERLACED,
- sizeof(struct s2255_buffer),
- fh, vdev->lock);
return 0;
}
-static int s2255_open(struct file *file)
-{
- struct video_device *vdev = video_devdata(file);
- int ret;
-
- if (mutex_lock_interruptible(vdev->lock))
- return -ERESTARTSYS;
- ret = __s2255_open(file);
- mutex_unlock(vdev->lock);
- return ret;
-}
-
-static unsigned int s2255_poll(struct file *file,
- struct poll_table_struct *wait)
-{
- struct s2255_fh *fh = file->private_data;
- struct s2255_dev *dev = fh->vc->dev;
- int rc = v4l2_ctrl_poll(file, wait);
-
- dprintk(dev, 100, "%s\n", __func__);
- mutex_lock(&dev->lock);
- rc |= videobuf_poll_stream(file, &fh->vb_vidq, wait);
- mutex_unlock(&dev->lock);
- return rc;
-}
-
static void s2255_destroy(struct s2255_dev *dev)
{
dprintk(dev, 1, "%s", __func__);
@@ -1720,59 +1537,14 @@ static void s2255_destroy(struct s2255_dev
*dev)
kfree(dev);
}
-static int s2255_release(struct file *file)
-{
- struct s2255_fh *fh = file->private_data;
- struct video_device *vdev = video_devdata(file);
- struct s2255_vc *vc = fh->vc;
- struct s2255_dev *dev = vc->dev;
-
- if (!dev)
- return -ENODEV;
- mutex_lock(&dev->lock);
- /* turn off stream */
- if (res_check(fh)) {
- if (vc->b_acquire)
- s2255_stop_acquire(vc);
- videobuf_streamoff(&fh->vb_vidq);
- res_free(fh);
- }
- videobuf_mmap_free(&fh->vb_vidq);
- mutex_unlock(&dev->lock);
- dprintk(dev, 1, "%s[%s]\n", __func__, video_device_node_name(vdev));
- v4l2_fh_del(&fh->fh);
- v4l2_fh_exit(&fh->fh);
- kfree(fh);
- return 0;
-}
-
-static int s2255_mmap_v4l(struct file *file, struct vm_area_struct
*vma)
-{
- struct s2255_fh *fh = file->private_data;
- struct s2255_dev *dev;
- int ret;
-
- if (!fh)
- return -ENODEV;
- dev = fh->vc->dev;
- dprintk(dev, 4, "%s, vma=0x%08lx\n", __func__, (unsigned long)vma);
- if (mutex_lock_interruptible(&dev->lock))
- return -ERESTARTSYS;
- ret = videobuf_mmap_mapper(&fh->vb_vidq, vma);
- mutex_unlock(&dev->lock);
- dprintk(dev, 4, "%s vma start=0x%08lx, size=%ld, ret=%d\n",
__func__,
- (unsigned long)vma->vm_start,
- (unsigned long)vma->vm_end - (unsigned long)vma->vm_start, ret);
- return ret;
-}
-
static const struct v4l2_file_operations s2255_fops_v4l = {
.owner = THIS_MODULE,
.open = s2255_open,
- .release = s2255_release,
- .poll = s2255_poll,
+ .release = vb2_fop_release,
+ .poll = vb2_fop_poll,
.unlocked_ioctl = video_ioctl2, /* V4L2 ioctl handler */
- .mmap = s2255_mmap_v4l,
+ .mmap = vb2_fop_mmap,
+ .read = vb2_fop_read,
};
static const struct v4l2_ioctl_ops s2255_ioctl_ops = {
@@ -1781,17 +1553,17 @@ static const struct v4l2_ioctl_ops
s2255_ioctl_ops = {
.vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
.vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
.vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
- .vidioc_reqbufs = vidioc_reqbufs,
- .vidioc_querybuf = vidioc_querybuf,
- .vidioc_qbuf = vidioc_qbuf,
- .vidioc_dqbuf = vidioc_dqbuf,
+ .vidioc_reqbufs = vb2_ioctl_reqbufs,
+ .vidioc_querybuf = vb2_ioctl_querybuf,
+ .vidioc_qbuf = vb2_ioctl_qbuf,
+ .vidioc_dqbuf = vb2_ioctl_dqbuf,
.vidioc_s_std = vidioc_s_std,
.vidioc_g_std = vidioc_g_std,
.vidioc_enum_input = vidioc_enum_input,
.vidioc_g_input = vidioc_g_input,
.vidioc_s_input = vidioc_s_input,
- .vidioc_streamon = vidioc_streamon,
- .vidioc_streamoff = vidioc_streamoff,
+ .vidioc_streamon = vb2_ioctl_streamon,
+ .vidioc_streamoff = vb2_ioctl_streamoff,
.vidioc_s_jpegcomp = vidioc_s_jpegcomp,
.vidioc_g_jpegcomp = vidioc_g_jpegcomp,
.vidioc_s_parm = vidioc_s_parm,
@@ -1847,6 +1619,8 @@ static int s2255_probe_v4l(struct s2255_dev
*dev)
int i;
int cur_nr = video_nr;
struct s2255_vc *vc;
+ struct vb2_queue *q;
+
ret = v4l2_device_register(&dev->interface->dev, &dev->v4l2_dev);
if (ret)
return ret;
@@ -1879,8 +1653,24 @@ static int s2255_probe_v4l(struct s2255_dev
*dev)
dev_err(&dev->udev->dev, "couldn't register control\n");
break;
}
- /* register 4 video devices */
+ q = &vc->vb_vidq;
+ q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+ q->io_modes = VB2_MMAP | VB2_READ | VB2_USERPTR;
+ q->drv_priv = vc;
+ q->lock = &vc->vb_lock;
+ q->buf_struct_size = sizeof(struct s2255_buffer);
+ q->mem_ops = &vb2_vmalloc_memops;
+ q->ops = &s2255_video_qops;
+ q->timestamp_type = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
+ ret = vb2_queue_init(q);
+ if (ret != 0) {
+ dev_err(&dev->udev->dev,
+ "%s vb2_queue_init 0x%x\n", __func__, ret);
+ break;
+ }
+ /* register video devices */
vc->vdev = template;
+ vc->vdev.queue = q;
vc->vdev.ctrl_handler = &vc->hdl;
vc->vdev.lock = &dev->lock;
vc->vdev.v4l2_dev = &dev->v4l2_dev;
@@ -2029,7 +1819,7 @@ static int save_frame(struct s2255_dev *dev,
struct s2255_pipeinfo *pipe_info)
idx = vc->cur_frame;
frm = &vc->buffer.frame[idx];
/* search done. now find out if should be acquiring on this channel
*/
- if (!vc->b_acquire) {
+ if (!vb2_is_streaming(&vc->vb_vidq)) {
/* we found a frame, but this channel is turned off */
frm->ulState = S2255_READ_IDLE;
return -EINVAL;
@@ -2073,7 +1863,7 @@ static int save_frame(struct s2255_dev *dev,
struct s2255_pipeinfo *pipe_info)
(vc->cur_frame == vc->buffer.dwFrames))
vc->cur_frame = 0;
/* frame ready */
- if (vc->b_acquire)
+ if (vb2_is_streaming(&vc->vb_vidq))
s2255_got_frame(vc, vc->jpg_size);
vc->frame_count++;
frm->ulState = S2255_READ_IDLE;
@@ -2222,7 +2012,6 @@ static int s2255_board_init(struct s2255_dev
*dev)
for (j = 0; j < MAX_CHANNELS; j++) {
struct s2255_vc *vc = &dev->vc[j];
- vc->b_acquire = 0;
vc->mode = mode_def;
if (dev->pid == 0x2257 && j > 1)
vc->mode.color |= (1 << 16);
@@ -2249,7 +2038,7 @@ static int s2255_board_shutdown(struct s2255_dev
*dev)
dprintk(dev, 1, "%s: dev: %p", __func__, dev);
for (i = 0; i < MAX_CHANNELS; i++) {
- if (dev->vc[i].b_acquire)
+ if (vb2_is_streaming(&dev->vc[i].vb_vidq))
s2255_stop_acquire(&dev->vc[i]);
}
s2255_stop_readpipe(dev);
@@ -2397,7 +2186,6 @@ static int s2255_stop_acquire(struct s2255_vc
*vc)
if (res != 0)
dev_err(&dev->udev->dev, "CMD_STOP error\n");
- vc->b_acquire = 0;
dprintk(dev, 4, "%s: chn %d, res %d\n", __func__, vc->idx, res);
mutex_unlock(&dev->cmdlock);
return res;
@@ -2503,6 +2291,8 @@ static int s2255_probe(struct usb_interface
*interface,
vc->dev = dev;
init_waitqueue_head(&vc->wait_setmode);
init_waitqueue_head(&vc->wait_vidstatus);
+ spin_lock_init(&vc->qlock);
+ mutex_init(&vc->vb_lock);
}
dev->fw_data->fw_urb = usb_alloc_urb(0, GFP_KERNEL);
@@ -2548,7 +2338,6 @@ static int s2255_probe(struct usb_interface
*interface,
retval = s2255_board_init(dev);
if (retval)
goto errorBOARDINIT;
- spin_lock_init(&dev->slock);
s2255_fwload_start(dev, 0);
/* loads v4l specific */
retval = s2255_probe_v4l(dev);
--
1.7.9.5
