From: Hans Verkuil <hans.verk...@cisco.com>
This converts this driver to videobuf2. As usual it is a big and hard to review
patch, but this is always a big-bang change.
It has been tested with my Renesas board.
Signed-off-by: Hans Verkuil <hans.verk...@cisco.com>
Tested-by: Hans Verkuil <hans.verk...@cisco.com>
---
drivers/media/platform/sh_vou.c | 590 +++++++++++++++++-----------------------
1 file changed, 250 insertions(+), 340 deletions(-)
diff --git a/drivers/media/platform/sh_vou.c b/drivers/media/platform/sh_vou.c
index 22b32ec..8f60f82 100644
--- a/drivers/media/platform/sh_vou.c
+++ b/drivers/media/platform/sh_vou.c
@@ -27,7 +27,7 @@
#include <media/v4l2-device.h>
#include <media/v4l2-ioctl.h>
#include <media/v4l2-mediabus.h>
-#include <media/videobuf-dma-contig.h>
+#include <media/videobuf2-dma-contig.h>
/* Mirror addresses are not available for all registers */
#define VOUER 0
@@ -57,8 +57,19 @@ enum sh_vou_status {
SH_VOU_RUNNING,
};
+#define VOU_MIN_IMAGE_WIDTH 16
#define VOU_MAX_IMAGE_WIDTH 720
-#define VOU_MAX_IMAGE_HEIGHT 576
+#define VOU_MIN_IMAGE_HEIGHT 16
+
+struct sh_vou_buffer {
+ struct vb2_buffer vb;
+ struct list_head list;
+};
+
+static inline struct sh_vou_buffer *to_sh_vou_buffer(struct vb2_buffer *vb2)
+{
+ return container_of(vb2, struct sh_vou_buffer, vb);
+}
struct sh_vou_device {
struct v4l2_device v4l2_dev;
@@ -69,19 +80,17 @@ struct sh_vou_device {
/* State information */
struct v4l2_pix_format pix;
struct v4l2_rect rect;
- struct list_head queue;
+ struct list_head buf_list;
v4l2_std_id std;
int pix_idx;
- struct videobuf_buffer *active;
+ struct vb2_queue queue;
+ struct vb2_alloc_ctx *alloc_ctx;
+ struct sh_vou_buffer *active;
enum sh_vou_status status;
+ unsigned sequence;
struct mutex fop_lock;
};
-struct sh_vou_file {
- struct v4l2_fh fh;
- struct videobuf_queue vbq;
-};
-
/* Register access routines for sides A, B and mirror addresses */
static void sh_vou_reg_a_write(struct sh_vou_device *vou_dev, unsigned int reg,
u32 value)
@@ -184,11 +193,11 @@ static struct sh_vou_fmt vou_fmt[] = {
};
static void sh_vou_schedule_next(struct sh_vou_device *vou_dev,
- struct videobuf_buffer *vb)
+ struct vb2_buffer *vb)
{
dma_addr_t addr1, addr2;
- addr1 = videobuf_to_dma_contig(vb);
+ addr1 = vb2_dma_contig_plane_dma_addr(vb, 0);
switch (vou_dev->pix.pixelformat) {
case V4L2_PIX_FMT_NV12:
case V4L2_PIX_FMT_NV16:
@@ -202,8 +211,7 @@ static void sh_vou_schedule_next(struct sh_vou_device
*vou_dev,
sh_vou_reg_m_write(vou_dev, VOUAD2R, addr2);
}
-static void sh_vou_stream_start(struct sh_vou_device *vou_dev,
- struct videobuf_buffer *vb)
+static void sh_vou_stream_config(struct sh_vou_device *vou_dev)
{
unsigned int row_coeff;
#ifdef __LITTLE_ENDIAN
@@ -230,167 +238,136 @@ static void sh_vou_stream_start(struct sh_vou_device
*vou_dev,
sh_vou_reg_a_write(vou_dev, VOUSWR, dataswap);
sh_vou_reg_ab_write(vou_dev, VOUAIR, vou_dev->pix.width * row_coeff);
- sh_vou_schedule_next(vou_dev, vb);
-}
-
-static void free_buffer(struct videobuf_queue *vq, struct videobuf_buffer *vb)
-{
- BUG_ON(in_interrupt());
-
- /* Wait until this buffer is no longer in STATE_QUEUED or STATE_ACTIVE
*/
- videobuf_waiton(vq, vb, 0, 0);
- videobuf_dma_contig_free(vq, vb);
- vb->state = VIDEOBUF_NEEDS_INIT;
}
/* Locking: caller holds fop_lock mutex */
-static int sh_vou_buf_setup(struct videobuf_queue *vq, unsigned int *count,
- unsigned int *size)
+static int sh_vou_queue_setup(struct vb2_queue *vq, const struct v4l2_format
*fmt,
+ unsigned int *nbuffers, unsigned int *nplanes,
+ unsigned int sizes[], void *alloc_ctxs[])
{
- struct video_device *vdev = vq->priv_data;
- struct sh_vou_device *vou_dev = video_get_drvdata(vdev);
-
- *size = vou_fmt[vou_dev->pix_idx].bpp * vou_dev->pix.width *
- vou_dev->pix.height / 8;
-
- if (*count < 2)
- *count = 2;
-
- /* Taking into account maximum frame size, *count will stay >= 2 */
- if (PAGE_ALIGN(*size) * *count > 4 * 1024 * 1024)
- *count = 4 * 1024 * 1024 / PAGE_ALIGN(*size);
+ struct sh_vou_device *vou_dev = vb2_get_drv_priv(vq);
+ struct v4l2_pix_format *pix = &vou_dev->pix;
+ int bytes_per_line = vou_fmt[vou_dev->pix_idx].bpp * pix->width / 8;
- dev_dbg(vou_dev->v4l2_dev.dev, "%s(): count=%d, size=%d\n", __func__,
- *count, *size);
+ dev_dbg(vou_dev->v4l2_dev.dev, "%s()\n", __func__);
+ if (fmt && fmt->fmt.pix.sizeimage < pix->height * bytes_per_line)
+ return -EINVAL;
+ *nplanes = 1;
+ sizes[0] = fmt ? fmt->fmt.pix.sizeimage : pix->height * bytes_per_line;
+ alloc_ctxs[0] = vou_dev->alloc_ctx;
return 0;
}
-/* Locking: caller holds fop_lock mutex */
-static int sh_vou_buf_prepare(struct videobuf_queue *vq,
- struct videobuf_buffer *vb,
- enum v4l2_field field)
+static int sh_vou_buf_prepare(struct vb2_buffer *vb)
{
- struct video_device *vdev = vq->priv_data;
- struct sh_vou_device *vou_dev = video_get_drvdata(vdev);
+ struct sh_vou_device *vou_dev = vb2_get_drv_priv(vb->vb2_queue);
struct v4l2_pix_format *pix = &vou_dev->pix;
- int bytes_per_line = vou_fmt[vou_dev->pix_idx].bpp * pix->width / 8;
- int ret;
+ unsigned bytes_per_line = vou_fmt[vou_dev->pix_idx].bpp * pix->width /
8;
+ unsigned size = pix->height * bytes_per_line;
dev_dbg(vou_dev->v4l2_dev.dev, "%s()\n", __func__);
- if (vb->width != pix->width ||
- vb->height != pix->height ||
- vb->field != pix->field) {
- vb->width = pix->width;
- vb->height = pix->height;
- vb->field = field;
- if (vb->state != VIDEOBUF_NEEDS_INIT)
- free_buffer(vq, vb);
- }
-
- vb->size = vb->height * bytes_per_line;
- if (vb->baddr && vb->bsize < vb->size) {
+ if (vb2_plane_size(vb, 0) < size) {
/* User buffer too small */
- dev_warn(vq->dev, "User buffer too small: [%zu] @ %lx\n",
- vb->bsize, vb->baddr);
+ dev_warn(vou_dev->v4l2_dev.dev, "buffer too small (%lu < %u)\n",
+ vb2_plane_size(vb, 0), size);
return -EINVAL;
}
- if (vb->state == VIDEOBUF_NEEDS_INIT) {
- ret = videobuf_iolock(vq, vb, NULL);
- if (ret < 0) {
- dev_warn(vq->dev, "IOLOCK buf-type %d: %d\n",
- vb->memory, ret);
- return ret;
- }
- vb->state = VIDEOBUF_PREPARED;
- }
-
- dev_dbg(vou_dev->v4l2_dev.dev,
- "%s(): fmt #%d, %u bytes per line, phys %pad, type %d, state
%d\n",
- __func__, vou_dev->pix_idx, bytes_per_line,
- ({ dma_addr_t addr = videobuf_to_dma_contig(vb); &addr; }),
- vb->memory, vb->state);
-
+ vb2_set_plane_payload(vb, 0, size);
return 0;
}
/* Locking: caller holds fop_lock mutex and vq->irqlock spinlock */
-static void sh_vou_buf_queue(struct videobuf_queue *vq,
- struct videobuf_buffer *vb)
+static void sh_vou_buf_queue(struct vb2_buffer *vb)
{
- struct video_device *vdev = vq->priv_data;
- struct sh_vou_device *vou_dev = video_get_drvdata(vdev);
+ struct sh_vou_device *vou_dev = vb2_get_drv_priv(vb->vb2_queue);
+ struct sh_vou_buffer *shbuf = to_sh_vou_buffer(vb);
+ unsigned long flags;
- dev_dbg(vou_dev->v4l2_dev.dev, "%s()\n", __func__);
+ spin_lock_irqsave(&vou_dev->lock, flags);
+ list_add_tail(&shbuf->list, &vou_dev->buf_list);
+ spin_unlock_irqrestore(&vou_dev->lock, flags);
+}
- vb->state = VIDEOBUF_QUEUED;
- list_add_tail(&vb->queue, &vou_dev->queue);
-
- if (vou_dev->status == SH_VOU_RUNNING) {
- return;
- } else if (!vou_dev->active) {
- vou_dev->active = vb;
- /* Start from side A: we use mirror addresses, so, set B */
- sh_vou_reg_a_write(vou_dev, VOURPR, 1);
- dev_dbg(vou_dev->v4l2_dev.dev, "%s: first buffer status 0x%x\n",
- __func__, sh_vou_reg_a_read(vou_dev, VOUSTR));
- sh_vou_schedule_next(vou_dev, vb);
- /* Only activate VOU after the second buffer */
- } else if (vou_dev->active->queue.next == &vb->queue) {
- /* Second buffer - initialise register side B */
- sh_vou_reg_a_write(vou_dev, VOURPR, 0);
- sh_vou_stream_start(vou_dev, vb);
-
- /* Register side switching with frame VSYNC */
- sh_vou_reg_a_write(vou_dev, VOURCR, 5);
- dev_dbg(vou_dev->v4l2_dev.dev, "%s: second buffer status
0x%x\n",
- __func__, sh_vou_reg_a_read(vou_dev, VOUSTR));
-
- /* Enable End-of-Frame (VSYNC) interrupts */
- sh_vou_reg_a_write(vou_dev, VOUIR, 0x10004);
- /* Two buffers on the queue - activate the hardware */
-
- vou_dev->status = SH_VOU_RUNNING;
- sh_vou_reg_a_write(vou_dev, VOUER, 0x107);
+static int sh_vou_start_streaming(struct vb2_queue *vq, unsigned int count)
+{
+ struct sh_vou_device *vou_dev = vb2_get_drv_priv(vq);
+ struct sh_vou_buffer *buf, *node;
+ int ret;
+
+ vou_dev->sequence = 0;
+ ret = v4l2_device_call_until_err(&vou_dev->v4l2_dev, 0,
+ video, s_stream, 1);
+ if (ret < 0 && ret != -ENOIOCTLCMD) {
+ list_for_each_entry_safe(buf, node, &vou_dev->buf_list, list) {
+ vb2_buffer_done(&buf->vb, VB2_BUF_STATE_QUEUED);
+ list_del(&buf->list);
+ }
+ vou_dev->active = NULL;
+ return ret;
}
+
+ buf = list_entry(vou_dev->buf_list.next, struct sh_vou_buffer, list);
+
+ vou_dev->active = buf;
+
+ /* Start from side A: we use mirror addresses, so, set B */
+ sh_vou_reg_a_write(vou_dev, VOURPR, 1);
+ dev_dbg(vou_dev->v4l2_dev.dev, "%s: first buffer status 0x%x\n",
+ __func__, sh_vou_reg_a_read(vou_dev, VOUSTR));
+ sh_vou_schedule_next(vou_dev, &buf->vb);
+
+ buf = list_entry(buf->list.next, struct sh_vou_buffer, list);
+
+ /* Second buffer - initialise register side B */
+ sh_vou_reg_a_write(vou_dev, VOURPR, 0);
+ sh_vou_schedule_next(vou_dev, &buf->vb);
+
+ /* Register side switching with frame VSYNC */
+ sh_vou_reg_a_write(vou_dev, VOURCR, 5);
+
+ sh_vou_stream_config(vou_dev);
+ /* Enable End-of-Frame (VSYNC) interrupts */
+ sh_vou_reg_a_write(vou_dev, VOUIR, 0x10004);
+
+ /* Two buffers on the queue - activate the hardware */
+ vou_dev->status = SH_VOU_RUNNING;
+ sh_vou_reg_a_write(vou_dev, VOUER, 0x107);
+ return 0;
}
-static void sh_vou_buf_release(struct videobuf_queue *vq,
- struct videobuf_buffer *vb)
+static void sh_vou_stop_streaming(struct vb2_queue *vq)
{
- struct video_device *vdev = vq->priv_data;
- struct sh_vou_device *vou_dev = video_get_drvdata(vdev);
+ struct sh_vou_device *vou_dev = vb2_get_drv_priv(vq);
+ struct sh_vou_buffer *buf, *node;
unsigned long flags;
- dev_dbg(vou_dev->v4l2_dev.dev, "%s()\n", __func__);
-
+ v4l2_device_call_until_err(&vou_dev->v4l2_dev, 0,
+ video, s_stream, 0);
+ /* disable output */
+ sh_vou_reg_a_set(vou_dev, VOUER, 0, 1);
+ /* ...but the current frame will complete */
+ sh_vou_reg_a_set(vou_dev, VOUIR, 0, 0x30000);
+ msleep(50);
spin_lock_irqsave(&vou_dev->lock, flags);
-
- if (vou_dev->active == vb) {
- /* disable output */
- sh_vou_reg_a_set(vou_dev, VOUER, 0, 1);
- /* ...but the current frame will complete */
- sh_vou_reg_a_set(vou_dev, VOUIR, 0, 0x30000);
- vou_dev->active = NULL;
+ list_for_each_entry_safe(buf, node, &vou_dev->buf_list, list) {
+ vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR);
+ list_del(&buf->list);
}
-
- if ((vb->state == VIDEOBUF_ACTIVE || vb->state == VIDEOBUF_QUEUED)) {
- vb->state = VIDEOBUF_ERROR;
- list_del(&vb->queue);
- }
-
+ vou_dev->active = NULL;
spin_unlock_irqrestore(&vou_dev->lock, flags);
-
- free_buffer(vq, vb);
}
-static struct videobuf_queue_ops sh_vou_video_qops = {
- .buf_setup = sh_vou_buf_setup,
- .buf_prepare = sh_vou_buf_prepare,
- .buf_queue = sh_vou_buf_queue,
- .buf_release = sh_vou_buf_release,
+static struct vb2_ops sh_vou_qops = {
+ .queue_setup = sh_vou_queue_setup,
+ .buf_prepare = sh_vou_buf_prepare,
+ .buf_queue = sh_vou_buf_queue,
+ .start_streaming = sh_vou_start_streaming,
+ .stop_streaming = sh_vou_stop_streaming,
+ .wait_prepare = vb2_ops_wait_prepare,
+ .wait_finish = vb2_ops_wait_finish,
};
/* Video IOCTLs */
@@ -404,7 +381,8 @@ static int sh_vou_querycap(struct file *file, void *priv,
strlcpy(cap->card, "SuperH VOU", sizeof(cap->card));
strlcpy(cap->driver, "sh-vou", sizeof(cap->driver));
strlcpy(cap->bus_info, "platform:sh-vou", sizeof(cap->bus_info));
- cap->device_caps = V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_STREAMING;
+ cap->device_caps = V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_READWRITE |
+ V4L2_CAP_STREAMING;
cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
return 0;
}
@@ -548,8 +526,10 @@ static void vou_adjust_input(struct sh_vou_geometry *geo,
v4l2_std_id std)
img_height_max = 576;
/* Image width must be a multiple of 4 */
- v4l_bound_align_image(&geo->in_width, 0, VOU_MAX_IMAGE_WIDTH, 2,
- &geo->in_height, 0, img_height_max, 1, 0);
+ v4l_bound_align_image(&geo->in_width,
+ VOU_MIN_IMAGE_WIDTH, VOU_MAX_IMAGE_WIDTH, 2,
+ &geo->in_height,
+ VOU_MIN_IMAGE_HEIGHT, img_height_max, 1, 0);
/* Select scales to come as close as possible to the output image */
for (i = ARRAY_SIZE(vou_scale_h_num) - 1; i >= 0; i--) {
@@ -705,19 +685,19 @@ static int sh_vou_try_fmt_vid_out(struct file *file, void
*priv,
else
img_height_max = 576;
- v4l_bound_align_image(&pix->width, 0, VOU_MAX_IMAGE_WIDTH, 2,
- &pix->height, 0, img_height_max, 1, 0);
+ v4l_bound_align_image(&pix->width,
+ VOU_MIN_IMAGE_WIDTH, VOU_MAX_IMAGE_WIDTH, 2,
+ &pix->height,
+ VOU_MIN_IMAGE_HEIGHT, img_height_max, 1, 0);
pix->bytesperline = pix->width * vou_fmt[pix_idx].bpl;
pix->sizeimage = pix->height * ((pix->width * vou_fmt[pix_idx].bpp) >>
3);
return 0;
}
-static int sh_vou_s_fmt_vid_out(struct file *file, void *priv,
- struct v4l2_format *fmt)
+static int sh_vou_set_fmt_vid_out(struct sh_vou_device *vou_dev,
+ struct v4l2_pix_format *pix)
{
- struct sh_vou_device *vou_dev = video_drvdata(file);
- struct v4l2_pix_format *pix = &fmt->fmt.pix;
unsigned int img_height_max;
struct sh_vou_geometry geo;
struct v4l2_subdev_format format = {
@@ -728,11 +708,11 @@ static int sh_vou_s_fmt_vid_out(struct file *file, void
*priv,
.format.colorspace = V4L2_COLORSPACE_SMPTE170M,
};
struct v4l2_mbus_framefmt *mbfmt = &format.format;
- int ret = sh_vou_try_fmt_vid_out(file, priv, fmt);
int pix_idx;
+ int ret;
- if (ret)
- return ret;
+ if (vb2_is_busy(&vou_dev->queue))
+ return -EBUSY;
for (pix_idx = 0; pix_idx < ARRAY_SIZE(vou_fmt); pix_idx++)
if (vou_fmt[pix_idx].pfmt == pix->pixelformat)
@@ -792,85 +772,15 @@ static int sh_vou_s_fmt_vid_out(struct file *file, void
*priv,
return 0;
}
-static int sh_vou_reqbufs(struct file *file, void *priv,
- struct v4l2_requestbuffers *req)
-{
- struct sh_vou_device *vou_dev = video_drvdata(file);
- struct sh_vou_file *vou_file = priv;
-
- dev_dbg(vou_dev->v4l2_dev.dev, "%s()\n", __func__);
-
- if (req->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
- return -EINVAL;
-
- return videobuf_reqbufs(&vou_file->vbq, req);
-}
-
-static int sh_vou_querybuf(struct file *file, void *priv,
- struct v4l2_buffer *b)
-{
- struct sh_vou_device *vou_dev = video_drvdata(file);
- struct sh_vou_file *vou_file = priv;
-
- dev_dbg(vou_dev->v4l2_dev.dev, "%s()\n", __func__);
-
- return videobuf_querybuf(&vou_file->vbq, b);
-}
-
-static int sh_vou_qbuf(struct file *file, void *priv, struct v4l2_buffer *b)
-{
- struct sh_vou_device *vou_dev = video_drvdata(file);
- struct sh_vou_file *vou_file = priv;
-
- dev_dbg(vou_dev->v4l2_dev.dev, "%s()\n", __func__);
-
- return videobuf_qbuf(&vou_file->vbq, b);
-}
-
-static int sh_vou_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b)
-{
- struct sh_vou_device *vou_dev = video_drvdata(file);
- struct sh_vou_file *vou_file = priv;
-
- dev_dbg(vou_dev->v4l2_dev.dev, "%s()\n", __func__);
-
- return videobuf_dqbuf(&vou_file->vbq, b, file->f_flags & O_NONBLOCK);
-}
-
-static int sh_vou_streamon(struct file *file, void *priv,
- enum v4l2_buf_type buftype)
+static int sh_vou_s_fmt_vid_out(struct file *file, void *priv,
+ struct v4l2_format *fmt)
{
struct sh_vou_device *vou_dev = video_drvdata(file);
- struct sh_vou_file *vou_file = priv;
- int ret;
-
- dev_dbg(vou_dev->v4l2_dev.dev, "%s()\n", __func__);
+ int ret = sh_vou_try_fmt_vid_out(file, priv, fmt);
- ret = v4l2_device_call_until_err(&vou_dev->v4l2_dev, 0,
- video, s_stream, 1);
- if (ret < 0 && ret != -ENOIOCTLCMD)
+ if (ret)
return ret;
-
- /* This calls our .buf_queue() (== sh_vou_buf_queue) */
- return videobuf_streamon(&vou_file->vbq);
-}
-
-static int sh_vou_streamoff(struct file *file, void *priv,
- enum v4l2_buf_type buftype)
-{
- struct sh_vou_device *vou_dev = video_drvdata(file);
- struct sh_vou_file *vou_file = priv;
-
- dev_dbg(vou_dev->v4l2_dev.dev, "%s()\n", __func__);
-
- /*
- * This calls buf_release from host driver's videobuf_queue_ops for all
- * remaining buffers. When the last buffer is freed, stop streaming
- */
- videobuf_streamoff(&vou_file->vbq);
- v4l2_device_call_until_err(&vou_dev->v4l2_dev, 0, video, s_stream, 0);
-
- return 0;
+ return sh_vou_set_fmt_vid_out(vou_dev, &fmt->fmt.pix);
}
static int sh_vou_enum_output(struct file *file, void *fh,
@@ -919,8 +829,11 @@ static int sh_vou_s_std(struct file *file, void *priv,
v4l2_std_id std_id)
dev_dbg(vou_dev->v4l2_dev.dev, "%s(): 0x%llx\n", __func__, std_id);
- if (std_id & ~vou_dev->vdev.tvnorms)
- return -EINVAL;
+ if (std_id == vou_dev->std)
+ return 0;
+
+ if (vb2_is_busy(&vou_dev->queue))
+ return -EBUSY;
ret = v4l2_device_call_until_err(&vou_dev->v4l2_dev, 0, video,
s_std_output, std_id);
@@ -928,13 +841,25 @@ static int sh_vou_s_std(struct file *file, void *priv,
v4l2_std_id std_id)
if (ret < 0 && ret != -ENOIOCTLCMD)
return ret;
- if (std_id & V4L2_STD_525_60)
+ vou_dev->rect.top = vou_dev->rect.left = 0;
+ vou_dev->rect.width = VOU_MAX_IMAGE_WIDTH;
+ if (std_id & V4L2_STD_525_60) {
sh_vou_reg_ab_set(vou_dev, VOUCR,
sh_vou_ntsc_mode(vou_dev->pdata->bus_fmt) << 29, 7 <<
29);
- else
+ vou_dev->rect.height = 480;
+ } else {
sh_vou_reg_ab_set(vou_dev, VOUCR, 5 << 29, 7 << 29);
+ vou_dev->rect.height = 576;
+ }
+ vou_dev->pix.width = vou_dev->rect.width;
+ vou_dev->pix.height = vou_dev->rect.height;
+ vou_dev->pix.bytesperline =
+ vou_dev->pix.width * vou_fmt[vou_dev->pix_idx].bpl;
+ vou_dev->pix.sizeimage = vou_dev->pix.height *
+ ((vou_dev->pix.width * vou_fmt[vou_dev->pix_idx].bpp) >> 3);
vou_dev->std = std_id;
+ sh_vou_set_fmt_vid_out(vou_dev, &vou_dev->pix);
return 0;
}
@@ -994,7 +919,10 @@ static int sh_vou_g_selection(struct file *file, void *fh,
sel->r.left = 0;
sel->r.top = 0;
sel->r.width = VOU_MAX_IMAGE_WIDTH;
- sel->r.height = VOU_MAX_IMAGE_HEIGHT;
+ if (vou_dev->std & V4L2_STD_525_60)
+ sel->r.height = 480;
+ else
+ sel->r.height = 576;
break;
default:
return -EINVAL;
@@ -1025,13 +953,18 @@ static int sh_vou_s_selection(struct file *file, void
*fh,
sel->target != V4L2_SEL_TGT_COMPOSE)
return -EINVAL;
+ if (vb2_is_busy(&vou_dev->queue))
+ return -EBUSY;
+
if (vou_dev->std & V4L2_STD_525_60)
img_height_max = 480;
else
img_height_max = 576;
- v4l_bound_align_image(&rect->width, 0, VOU_MAX_IMAGE_WIDTH, 1,
- &rect->height, 0, img_height_max, 1, 0);
+ v4l_bound_align_image(&rect->width,
+ VOU_MIN_IMAGE_WIDTH, VOU_MAX_IMAGE_WIDTH, 1,
+ &rect->height,
+ VOU_MIN_IMAGE_HEIGHT, img_height_max, 1, 0);
if (rect->width + rect->left > VOU_MAX_IMAGE_WIDTH)
rect->left = VOU_MAX_IMAGE_WIDTH - rect->width;
@@ -1090,7 +1023,7 @@ static irqreturn_t sh_vou_isr(int irq, void *dev_id)
{
struct sh_vou_device *vou_dev = dev_id;
static unsigned long j;
- struct videobuf_buffer *vb;
+ struct sh_vou_buffer *vb;
static int cnt;
u32 irq_status = sh_vou_reg_a_read(vou_dev, VOUIR), masked;
u32 vou_status = sh_vou_reg_a_read(vou_dev, VOUSTR);
@@ -1103,7 +1036,7 @@ static irqreturn_t sh_vou_isr(int irq, void *dev_id)
}
spin_lock(&vou_dev->lock);
- if (!vou_dev->active || list_empty(&vou_dev->queue)) {
+ if (!vou_dev->active || list_empty(&vou_dev->buf_list)) {
if (printk_timed_ratelimit(&j, 500))
dev_warn(vou_dev->v4l2_dev.dev,
"IRQ without active buffer: %x!\n",
irq_status);
@@ -1125,33 +1058,30 @@ static irqreturn_t sh_vou_isr(int irq, void *dev_id)
sh_vou_reg_a_write(vou_dev, VOUIR, masked);
vb = vou_dev->active;
- list_del(&vb->queue);
-
- vb->state = VIDEOBUF_DONE;
- v4l2_get_timestamp(&vb->ts);
- vb->field_count++;
- wake_up(&vb->done);
-
- if (list_empty(&vou_dev->queue)) {
- /* Stop VOU */
- dev_dbg(vou_dev->v4l2_dev.dev, "%s: queue empty after %d\n",
- __func__, cnt);
- sh_vou_reg_a_set(vou_dev, VOUER, 0, 1);
- vou_dev->active = NULL;
- vou_dev->status = SH_VOU_INITIALISING;
- /* Disable End-of-Frame (VSYNC) interrupts */
- sh_vou_reg_a_set(vou_dev, VOUIR, 0, 0x30000);
+ if (list_is_singular(&vb->list)) {
+ /* Keep cycling while no next buffer is available */
+ sh_vou_schedule_next(vou_dev, &vb->vb);
spin_unlock(&vou_dev->lock);
return IRQ_HANDLED;
}
- vou_dev->active = list_entry(vou_dev->queue.next,
- struct videobuf_buffer, queue);
+ list_del(&vb->list);
+
+ v4l2_get_timestamp(&vb->vb.v4l2_buf.timestamp);
+ vb->vb.v4l2_buf.sequence = vou_dev->sequence++;
+ vb->vb.v4l2_buf.field = V4L2_FIELD_INTERLACED;
+ vb2_buffer_done(&vb->vb, VB2_BUF_STATE_DONE);
+
+ vou_dev->active = list_entry(vou_dev->buf_list.next,
+ struct sh_vou_buffer, list);
- if (vou_dev->active->queue.next != &vou_dev->queue) {
- struct videobuf_buffer *new =
list_entry(vou_dev->active->queue.next,
- struct videobuf_buffer, queue);
- sh_vou_schedule_next(vou_dev, new);
+ if (list_is_singular(&vou_dev->buf_list)) {
+ /* Keep cycling while no next buffer is available */
+ sh_vou_schedule_next(vou_dev, &vou_dev->active->vb);
+ } else {
+ struct sh_vou_buffer *new =
list_entry(vou_dev->active->list.next,
+ struct sh_vou_buffer, list);
+ sh_vou_schedule_next(vou_dev, &new->vb);
}
spin_unlock(&vou_dev->lock);
@@ -1191,6 +1121,8 @@ static int sh_vou_hw_init(struct sh_vou_device *vou_dev)
/* Default - fixed HSYNC length, can be made configurable is required */
sh_vou_reg_ab_write(vou_dev, VOUMSR, 0x800000);
+ sh_vou_set_fmt_vid_out(vou_dev, &vou_dev->pix);
+
return 0;
}
@@ -1198,104 +1130,49 @@ static int sh_vou_hw_init(struct sh_vou_device
*vou_dev)
static int sh_vou_open(struct file *file)
{
struct sh_vou_device *vou_dev = video_drvdata(file);
- struct sh_vou_file *vou_file = kzalloc(sizeof(struct sh_vou_file),
- GFP_KERNEL);
-
- if (!vou_file)
- return -ENOMEM;
-
- dev_dbg(vou_dev->v4l2_dev.dev, "%s()\n", __func__);
+ int err;
- v4l2_fh_init(&vou_file->fh, &vou_dev->vdev);
- if (mutex_lock_interruptible(&vou_dev->fop_lock)) {
- kfree(vou_file);
+ if (mutex_lock_interruptible(&vou_dev->fop_lock))
return -ERESTARTSYS;
- }
- v4l2_fh_add(&vou_file->fh);
- if (v4l2_fh_is_singular(&vou_file->fh)) {
- int ret;
+ err = v4l2_fh_open(file);
+ if (err)
+ goto done_open;
+ if (v4l2_fh_is_singular_file(file) &&
+ vou_dev->status == SH_VOU_INITIALISING) {
/* First open */
- vou_dev->status = SH_VOU_INITIALISING;
pm_runtime_get_sync(vou_dev->v4l2_dev.dev);
- ret = sh_vou_hw_init(vou_dev);
- if (ret < 0) {
+ err = sh_vou_hw_init(vou_dev);
+ if (err < 0) {
pm_runtime_put(vou_dev->v4l2_dev.dev);
+ v4l2_fh_release(file);
+ } else {
vou_dev->status = SH_VOU_IDLE;
- v4l2_fh_del(&vou_file->fh);
- v4l2_fh_exit(&vou_file->fh);
- mutex_unlock(&vou_dev->fop_lock);
- kfree(vou_file);
- return ret;
}
}
-
- videobuf_queue_dma_contig_init(&vou_file->vbq, &sh_vou_video_qops,
- vou_dev->v4l2_dev.dev, &vou_dev->lock,
- V4L2_BUF_TYPE_VIDEO_OUTPUT,
- V4L2_FIELD_NONE,
- sizeof(struct videobuf_buffer),
- &vou_dev->vdev, &vou_dev->fop_lock);
+done_open:
mutex_unlock(&vou_dev->fop_lock);
-
- file->private_data = vou_file;
-
- return 0;
+ return err;
}
static int sh_vou_release(struct file *file)
{
struct sh_vou_device *vou_dev = video_drvdata(file);
- struct sh_vou_file *vou_file = file->private_data;
-
- dev_dbg(vou_dev->v4l2_dev.dev, "%s()\n", __func__);
+ bool is_last;
mutex_lock(&vou_dev->fop_lock);
- if (v4l2_fh_is_singular(&vou_file->fh)) {
+ is_last = v4l2_fh_is_singular_file(file);
+ _vb2_fop_release(file, NULL);
+ if (is_last) {
/* Last close */
- vou_dev->status = SH_VOU_IDLE;
+ vou_dev->status = SH_VOU_INITIALISING;
sh_vou_reg_a_set(vou_dev, VOUER, 0, 0x101);
pm_runtime_put(vou_dev->v4l2_dev.dev);
}
- v4l2_fh_del(&vou_file->fh);
- v4l2_fh_exit(&vou_file->fh);
mutex_unlock(&vou_dev->fop_lock);
-
- file->private_data = NULL;
- kfree(vou_file);
-
return 0;
}
-static int sh_vou_mmap(struct file *file, struct vm_area_struct *vma)
-{
- struct sh_vou_device *vou_dev = video_drvdata(file);
- struct sh_vou_file *vou_file = file->private_data;
- int ret;
-
- dev_dbg(vou_dev->v4l2_dev.dev, "%s()\n", __func__);
-
- if (mutex_lock_interruptible(&vou_dev->fop_lock))
- return -ERESTARTSYS;
- ret = videobuf_mmap_mapper(&vou_file->vbq, vma);
- mutex_unlock(&vou_dev->fop_lock);
- return ret;
-}
-
-static unsigned int sh_vou_poll(struct file *file, poll_table *wait)
-{
- struct sh_vou_device *vou_dev = video_drvdata(file);
- struct sh_vou_file *vou_file = file->private_data;
- unsigned int res;
-
- dev_dbg(vou_dev->v4l2_dev.dev, "%s()\n", __func__);
-
- mutex_lock(&vou_dev->fop_lock);
- res = videobuf_poll_stream(file, &vou_file->vbq, wait);
- mutex_unlock(&vou_dev->fop_lock);
- return res;
-}
-
/* sh_vou display ioctl operations */
static const struct v4l2_ioctl_ops sh_vou_ioctl_ops = {
.vidioc_querycap = sh_vou_querycap,
@@ -1303,12 +1180,15 @@ static const struct v4l2_ioctl_ops sh_vou_ioctl_ops = {
.vidioc_g_fmt_vid_out = sh_vou_g_fmt_vid_out,
.vidioc_s_fmt_vid_out = sh_vou_s_fmt_vid_out,
.vidioc_try_fmt_vid_out = sh_vou_try_fmt_vid_out,
- .vidioc_reqbufs = sh_vou_reqbufs,
- .vidioc_querybuf = sh_vou_querybuf,
- .vidioc_qbuf = sh_vou_qbuf,
- .vidioc_dqbuf = sh_vou_dqbuf,
- .vidioc_streamon = sh_vou_streamon,
- .vidioc_streamoff = sh_vou_streamoff,
+ .vidioc_reqbufs = vb2_ioctl_reqbufs,
+ .vidioc_create_bufs = vb2_ioctl_create_bufs,
+ .vidioc_querybuf = vb2_ioctl_querybuf,
+ .vidioc_qbuf = vb2_ioctl_qbuf,
+ .vidioc_dqbuf = vb2_ioctl_dqbuf,
+ .vidioc_prepare_buf = vb2_ioctl_prepare_buf,
+ .vidioc_streamon = vb2_ioctl_streamon,
+ .vidioc_streamoff = vb2_ioctl_streamoff,
+ .vidioc_expbuf = vb2_ioctl_expbuf,
.vidioc_g_output = sh_vou_g_output,
.vidioc_s_output = sh_vou_s_output,
.vidioc_enum_output = sh_vou_enum_output,
@@ -1324,8 +1204,9 @@ static const struct v4l2_file_operations sh_vou_fops = {
.open = sh_vou_open,
.release = sh_vou_release,
.unlocked_ioctl = video_ioctl2,
- .mmap = sh_vou_mmap,
- .poll = sh_vou_poll,
+ .mmap = vb2_fop_mmap,
+ .poll = vb2_fop_poll,
+ .write = vb2_fop_write,
};
static const struct video_device sh_vou_video_template = {
@@ -1346,6 +1227,7 @@ static int sh_vou_probe(struct platform_device *pdev)
struct sh_vou_device *vou_dev;
struct resource *reg_res;
struct v4l2_subdev *subdev;
+ struct vb2_queue *q;
int irq, ret;
reg_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -1360,11 +1242,12 @@ static int sh_vou_probe(struct platform_device *pdev)
if (!vou_dev)
return -ENOMEM;
- INIT_LIST_HEAD(&vou_dev->queue);
+ INIT_LIST_HEAD(&vou_dev->buf_list);
spin_lock_init(&vou_dev->lock);
mutex_init(&vou_dev->fop_lock);
vou_dev->pdata = vou_pdata;
- vou_dev->status = SH_VOU_IDLE;
+ vou_dev->status = SH_VOU_INITIALISING;
+ vou_dev->pix_idx = 1;
rect = &vou_dev->rect;
pix = &vou_dev->pix;
@@ -1378,7 +1261,7 @@ static int sh_vou_probe(struct platform_device *pdev)
pix->width = VOU_MAX_IMAGE_WIDTH;
pix->height = 480;
pix->pixelformat = V4L2_PIX_FMT_NV16;
- pix->field = V4L2_FIELD_NONE;
+ pix->field = V4L2_FIELD_INTERLACED;
pix->bytesperline = VOU_MAX_IMAGE_WIDTH;
pix->sizeimage = VOU_MAX_IMAGE_WIDTH * 2 * 480;
pix->colorspace = V4L2_COLORSPACE_SMPTE170M;
@@ -1407,6 +1290,30 @@ static int sh_vou_probe(struct platform_device *pdev)
video_set_drvdata(vdev, vou_dev);
+ /* Initialize the vb2 queue */
+ q = &vou_dev->queue;
+ q->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
+ q->io_modes = VB2_MMAP | VB2_DMABUF | VB2_WRITE;
+ q->drv_priv = vou_dev;
+ q->buf_struct_size = sizeof(struct sh_vou_buffer);
+ q->ops = &sh_vou_qops;
+ q->mem_ops = &vb2_dma_contig_memops;
+ q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
+ q->min_buffers_needed = 2;
+ q->lock = &vou_dev->fop_lock;
+ ret = vb2_queue_init(q);
+ if (ret)
+ goto einitctx;
+
+ vou_dev->alloc_ctx = vb2_dma_contig_init_ctx(&pdev->dev);
+ if (IS_ERR(vou_dev->alloc_ctx)) {
+ dev_err(&pdev->dev, "Can't allocate buffer context");
+ ret = PTR_ERR(vou_dev->alloc_ctx);
+ goto einitctx;
+ }
+ vdev->queue = q;
+ INIT_LIST_HEAD(&vou_dev->buf_list);
+
pm_runtime_enable(&pdev->dev);
pm_runtime_resume(&pdev->dev);
@@ -1438,6 +1345,8 @@ ei2cnd:
ereset:
i2c_put_adapter(i2c_adap);
ei2cgadap:
+ vb2_dma_contig_cleanup_ctx(vou_dev->alloc_ctx);
+einitctx:
pm_runtime_disable(&pdev->dev);
v4l2_device_unregister(&vou_dev->v4l2_dev);
return ret;
@@ -1455,6 +1364,7 @@ static int sh_vou_remove(struct platform_device *pdev)
pm_runtime_disable(&pdev->dev);
video_unregister_device(&vou_dev->vdev);
i2c_put_adapter(client->adapter);
+ vb2_dma_contig_cleanup_ctx(vou_dev->alloc_ctx);
v4l2_device_unregister(&vou_dev->v4l2_dev);
return 0;
}
--
2.1.4
--
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