[PATCH v2 2/2] media: davinci: vpif display: upgrade the driver with v4l offerings

From: Lad, Prabhakar
Date: Fri Apr 04 2014 - 01:18:14 EST

From: "Lad, Prabhakar" <prabhakar.csengg@xxxxxxxxx>

This patch upgrades the vpif display driver with
v4l helpers, this patch does the following,

1: initialize the vb2 queue and context at the time of probe
and removes context at remove() callback.
2: uses vb2_ioctl_*() helpers.
3: uses vb2_fop_*() helpers.
4: uses SIMPLE_DEV_PM_OPS.
5: uses vb2_ioctl_*() helpers.
6: vidioc_g/s_priority is now handled by v4l core.
7: removed driver specific fh and now using one provided by v4l.
8: fixes checkpatch warnings.

Signed-off-by: Lad, Prabhakar <prabhakar.csengg@xxxxxxxxx>
---
drivers/media/platform/davinci/vpif_display.c | 800 +++++++------------------
drivers/media/platform/davinci/vpif_display.h | 31 +-
2 files changed, 221 insertions(+), 610 deletions(-)

diff --git a/drivers/media/platform/davinci/vpif_display.c b/drivers/media/platform/davinci/vpif_display.c
index aed41ed..f3ae946 100644
--- a/drivers/media/platform/davinci/vpif_display.c
+++ b/drivers/media/platform/davinci/vpif_display.c
@@ -3,6 +3,7 @@
* Display driver for TI DaVinci VPIF
*
* Copyright (C) 2009 Texas Instruments Incorporated - http://www.ti.com/
+ * Copyright (C) 2014 Lad, Prabhakar <prabhakar.csengg@xxxxxxxxx>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
@@ -34,6 +35,8 @@ MODULE_VERSION(VPIF_DISPLAY_VERSION);
#define vpif_dbg(level, debug, fmt, arg...) \
v4l2_dbg(level, debug, &vpif_obj.v4l2_dev, fmt, ## arg)

+#define VPIF_DRIVER_NAME "vpif_display"
+
static int debug = 1;
static u32 ch2_numbuffers = 3;
static u32 ch3_numbuffers = 3;
@@ -64,9 +67,21 @@ static struct vpif_config_params config_params = {

static struct vpif_device vpif_obj = { {NULL} };
static struct device *vpif_dev;
+static u8 channel_first_int[VPIF_NUMOBJECTS][2] = { {1, 1} };
+
+/*
+ * Is set to 1 in case of SDTV formats, 2 in case of HDTV formats.
+ */
+static int ycmux_mode;
+
static void vpif_calculate_offsets(struct channel_obj *ch);
static void vpif_config_addr(struct channel_obj *ch, int muxmode);

+static inline struct vpif_disp_buffer *to_vpif_buffer(struct vb2_buffer *vb)
+{
+ return container_of(vb, struct vpif_disp_buffer, vb);
+}
+
/*
* buffer_prepare: This is the callback function called from vb2_qbuf()
* function the buffer is prepared and user space virtual address is converted
@@ -74,12 +89,12 @@ static void vpif_config_addr(struct channel_obj *ch, int muxmode);
*/
static int vpif_buffer_prepare(struct vb2_buffer *vb)
{
- struct vpif_fh *fh = vb2_get_drv_priv(vb->vb2_queue);
struct vb2_queue *q = vb->vb2_queue;
+ struct channel_obj *ch = vb2_get_drv_priv(q);
struct common_obj *common;
unsigned long addr;

- common = &fh->channel->common[VPIF_VIDEO_INDEX];
+ common = &ch->common[VPIF_VIDEO_INDEX];
if (vb->state != VB2_BUF_STATE_ACTIVE &&
vb->state != VB2_BUF_STATE_PREPARED) {
vb2_set_plane_payload(vb, 0, common->fmt.fmt.pix.sizeimage);
@@ -88,7 +103,7 @@ static int vpif_buffer_prepare(struct vb2_buffer *vb)
goto buf_align_exit;

addr = vb2_dma_contig_plane_dma_addr(vb, 0);
- if (q->streaming &&
+ if (vb2_is_streaming(q) &&
(V4L2_BUF_TYPE_SLICED_VBI_OUTPUT != q->type)) {
if (!ISALIGNED(addr + common->ytop_off) ||
!ISALIGNED(addr + common->ybtm_off) ||
@@ -112,12 +127,11 @@ static int vpif_buffer_queue_setup(struct vb2_queue *vq,
unsigned int *nbuffers, unsigned int *nplanes,
unsigned int sizes[], void *alloc_ctxs[])
{
- struct vpif_fh *fh = vb2_get_drv_priv(vq);
- struct channel_obj *ch = fh->channel;
+ struct channel_obj *ch = vb2_get_drv_priv(vq);
struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
unsigned long size;

- if (V4L2_MEMORY_MMAP == common->memory) {
+ if (vq->memory == V4L2_MEMORY_MMAP) {
size = config_params.channel_bufsize[ch->channel_id];
/*
* Checking if the buffer size exceeds the available buffer
@@ -154,15 +168,12 @@ static int vpif_buffer_queue_setup(struct vb2_queue *vq,
*/
static void vpif_buffer_queue(struct vb2_buffer *vb)
{
- struct vpif_fh *fh = vb2_get_drv_priv(vb->vb2_queue);
- struct vpif_disp_buffer *buf = container_of(vb,
- struct vpif_disp_buffer, vb);
- struct channel_obj *ch = fh->channel;
+ struct vpif_disp_buffer *buf = to_vpif_buffer(vb);
+ struct channel_obj *ch = vb2_get_drv_priv(vb->vb2_queue);
struct common_obj *common;
unsigned long flags;

common = &ch->common[VPIF_VIDEO_INDEX];
-
/* add the buffer to the DMA queue */
spin_lock_irqsave(&common->irqlock, flags);
list_add_tail(&buf->list, &common->dma_queue);
@@ -175,10 +186,8 @@ static void vpif_buffer_queue(struct vb2_buffer *vb)
*/
static void vpif_buf_cleanup(struct vb2_buffer *vb)
{
- struct vpif_fh *fh = vb2_get_drv_priv(vb->vb2_queue);
- struct vpif_disp_buffer *buf = container_of(vb,
- struct vpif_disp_buffer, vb);
- struct channel_obj *ch = fh->channel;
+ struct vpif_disp_buffer *buf = to_vpif_buffer(vb);
+ struct channel_obj *ch = vb2_get_drv_priv(vb->vb2_queue);
struct common_obj *common;
unsigned long flags;

@@ -190,66 +199,21 @@ static void vpif_buf_cleanup(struct vb2_buffer *vb)
spin_unlock_irqrestore(&common->irqlock, flags);
}

-static void vpif_wait_prepare(struct vb2_queue *vq)
-{
- struct vpif_fh *fh = vb2_get_drv_priv(vq);
- struct channel_obj *ch = fh->channel;
- struct common_obj *common;
-
- common = &ch->common[VPIF_VIDEO_INDEX];
- mutex_unlock(&common->lock);
-}
-
-static void vpif_wait_finish(struct vb2_queue *vq)
-{
- struct vpif_fh *fh = vb2_get_drv_priv(vq);
- struct channel_obj *ch = fh->channel;
- struct common_obj *common;
-
- common = &ch->common[VPIF_VIDEO_INDEX];
- mutex_lock(&common->lock);
-}
-
-static int vpif_buffer_init(struct vb2_buffer *vb)
-{
- struct vpif_disp_buffer *buf = container_of(vb,
- struct vpif_disp_buffer, vb);
-
- INIT_LIST_HEAD(&buf->list);
-
- return 0;
-}
-
-static u8 channel_first_int[VPIF_NUMOBJECTS][2] = { {1, 1} };
-
static int vpif_start_streaming(struct vb2_queue *vq, unsigned int count)
{
- struct vpif_display_config *vpif_config_data =
- vpif_dev->platform_data;
- struct vpif_fh *fh = vb2_get_drv_priv(vq);
- struct channel_obj *ch = fh->channel;
+ struct vpif_display_config *vpif_config_data;
+ struct channel_obj *ch = vb2_get_drv_priv(vq);
struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
struct vpif_params *vpif = &ch->vpifparams;
- unsigned long addr = 0;
- unsigned long flags;
+ struct vpif_disp_buffer *buf, *tmp;
+ unsigned long addr, flags;
int ret;

spin_lock_irqsave(&common->irqlock, flags);

- /* Get the next frame from the buffer queue */
- common->next_frm = common->cur_frm =
- list_entry(common->dma_queue.next,
- struct vpif_disp_buffer, list);
-
- list_del(&common->cur_frm->list);
- spin_unlock_irqrestore(&common->irqlock, flags);
- /* Mark state of the current frame to active */
- common->cur_frm->vb.state = VB2_BUF_STATE_ACTIVE;
-
- /* Initialize field_id and started member */
+ /* Initialize field_id */
ch->field_id = 0;
- common->started = 1;
- addr = vb2_dma_contig_plane_dma_addr(&common->cur_frm->vb, 0);
+
/* Calculate the offset for Y and C data in the buffer */
vpif_calculate_offsets(ch);

@@ -259,33 +223,50 @@ static int vpif_start_streaming(struct vb2_queue *vq, unsigned int count)
|| (!ch->vpifparams.std_info.frm_fmt
&& (common->fmt.fmt.pix.field == V4L2_FIELD_NONE))) {
vpif_err("conflict in field format and std format\n");
- return -EINVAL;
+ ret = -EINVAL;
+ goto err;
}

+ vpif_config_data = vpif_dev->platform_data;
/* clock settings */
if (vpif_config_data->set_clock) {
ret = vpif_config_data->set_clock(ch->vpifparams.std_info.
ycmux_mode, ch->vpifparams.std_info.hd_sd);
if (ret < 0) {
vpif_err("can't set clock\n");
- return ret;
+ goto err;
}
}

/* set the parameters and addresses */
ret = vpif_set_video_params(vpif, ch->channel_id + 2);
if (ret < 0)
- return ret;
+ goto err;

- common->started = ret;
+ ycmux_mode = ret;
vpif_config_addr(ch, ret);
+
+ /* Get the next frame from the buffer queue */
+ common->next_frm = common->cur_frm =
+ list_entry(common->dma_queue.next,
+ struct vpif_disp_buffer, list);
+
+ list_del(&common->cur_frm->list);
+ spin_unlock_irqrestore(&common->irqlock, flags);
+ /* Mark state of the current frame to active */
+ common->cur_frm->vb.state = VB2_BUF_STATE_ACTIVE;
+
+ addr = vb2_dma_contig_plane_dma_addr(&common->cur_frm->vb, 0);
+
common->set_addr((addr + common->ytop_off),
(addr + common->ybtm_off),
(addr + common->ctop_off),
(addr + common->cbtm_off));

- /* Set interrupt for both the fields in VPIF
- Register enable channel in VPIF register */
+ /*
+ * Set interrupt for both the fields in VPIF
+ * Register enable channel in VPIF register
+ */
channel_first_int[VPIF_VIDEO_INDEX][ch->channel_id] = 1;
if (VPIF_CHANNEL2_VIDEO == ch->channel_id) {
channel2_intr_assert();
@@ -295,8 +276,7 @@ static int vpif_start_streaming(struct vb2_queue *vq, unsigned int count)
channel2_clipping_enable(1);
}

- if ((VPIF_CHANNEL3_VIDEO == ch->channel_id)
- || (common->started == 2)) {
+ if (VPIF_CHANNEL3_VIDEO == ch->channel_id || ycmux_mode == 2) {
channel3_intr_assert();
channel3_intr_enable(1);
enable_channel3(1);
@@ -305,19 +285,23 @@ static int vpif_start_streaming(struct vb2_queue *vq, unsigned int count)
}

return 0;
+
+err:
+ list_for_each_entry_safe(buf, tmp, &common->dma_queue, list) {
+ list_del(&buf->list);
+ vb2_buffer_done(&buf->vb, VB2_BUF_STATE_QUEUED);
+ }
+
+ return ret;
}

/* abort streaming and wait for last buffer */
static int vpif_stop_streaming(struct vb2_queue *vq)
{
- struct vpif_fh *fh = vb2_get_drv_priv(vq);
- struct channel_obj *ch = fh->channel;
+ struct channel_obj *ch = vb2_get_drv_priv(vq);
struct common_obj *common;
unsigned long flags;

- if (!vb2_is_streaming(vq))
- return 0;
-
common = &ch->common[VPIF_VIDEO_INDEX];

/* Disable channel */
@@ -325,12 +309,12 @@ static int vpif_stop_streaming(struct vb2_queue *vq)
enable_channel2(0);
channel2_intr_enable(0);
}
- if ((VPIF_CHANNEL3_VIDEO == ch->channel_id) ||
- (2 == common->started)) {
+ if (VPIF_CHANNEL3_VIDEO == ch->channel_id || ycmux_mode == 2) {
enable_channel3(0);
channel3_intr_enable(0);
}
- common->started = 0;
+
+ ycmux_mode = 0;

/* release all active buffers */
spin_lock_irqsave(&common->irqlock, flags);
@@ -358,9 +342,8 @@ static int vpif_stop_streaming(struct vb2_queue *vq)

static struct vb2_ops video_qops = {
.queue_setup = vpif_buffer_queue_setup,
- .wait_prepare = vpif_wait_prepare,
- .wait_finish = vpif_wait_finish,
- .buf_init = vpif_buffer_init,
+ .wait_prepare = vb2_ops_wait_prepare,
+ .wait_finish = vb2_ops_wait_finish,
.buf_prepare = vpif_buffer_prepare,
.start_streaming = vpif_start_streaming,
.stop_streaming = vpif_stop_streaming,
@@ -370,7 +353,7 @@ static struct vb2_ops video_qops = {

static void process_progressive_mode(struct common_obj *common)
{
- unsigned long addr = 0;
+ unsigned long addr;

spin_lock(&common->irqlock);
/* Get the next buffer from buffer queue */
@@ -445,10 +428,11 @@ static irqreturn_t vpif_channel_isr(int irq, void *dev_id)
field = ch->common[VPIF_VIDEO_INDEX].fmt.fmt.pix.field;
for (i = 0; i < VPIF_NUMOBJECTS; i++) {
common = &ch->common[i];
- /* If streaming is started in this channel */
- if (0 == common->started)
+
+ if (!vb2_is_streaming(&common->buffer_queue))
continue;

+ /* If streaming is started in this channel */
if (1 == ch->vpifparams.std_info.frm_fmt) {
spin_lock(&common->irqlock);
if (list_empty(&common->dma_queue)) {
@@ -626,11 +610,6 @@ static void vpif_config_format(struct channel_obj *ch)
struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];

common->fmt.fmt.pix.field = V4L2_FIELD_ANY;
- if (config_params.numbuffers[ch->channel_id] == 0)
- common->memory = V4L2_MEMORY_USERPTR;
- else
- common->memory = V4L2_MEMORY_MMAP;
-
common->fmt.fmt.pix.sizeimage =
config_params.channel_bufsize[ch->channel_id];
common->fmt.fmt.pix.pixelformat = V4L2_PIX_FMT_YUV422P;
@@ -699,127 +678,6 @@ static void vpif_config_addr(struct channel_obj *ch, int muxmode)
}
}

-/*
- * vpif_mmap: It is used to map kernel space buffers into user spaces
- */
-static int vpif_mmap(struct file *filep, struct vm_area_struct *vma)
-{
- struct vpif_fh *fh = filep->private_data;
- struct channel_obj *ch = fh->channel;
- struct common_obj *common = &(ch->common[VPIF_VIDEO_INDEX]);
- int ret;
-
- vpif_dbg(2, debug, "vpif_mmap\n");
-
- if (mutex_lock_interruptible(&common->lock))
- return -ERESTARTSYS;
- ret = vb2_mmap(&common->buffer_queue, vma);
- mutex_unlock(&common->lock);
- return ret;
-}
-
-/*
- * vpif_poll: It is used for select/poll system call
- */
-static unsigned int vpif_poll(struct file *filep, poll_table *wait)
-{
- struct vpif_fh *fh = filep->private_data;
- struct channel_obj *ch = fh->channel;
- struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
- unsigned int res = 0;
-
- if (common->started) {
- mutex_lock(&common->lock);
- res = vb2_poll(&common->buffer_queue, filep, wait);
- mutex_unlock(&common->lock);
- }
-
- return res;
-}
-
-/*
- * vpif_open: It creates object of file handle structure and stores it in
- * private_data member of filepointer
- */
-static int vpif_open(struct file *filep)
-{
- struct video_device *vdev = video_devdata(filep);
- struct channel_obj *ch = video_get_drvdata(vdev);
- struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
- struct vpif_fh *fh;
-
- /* Allocate memory for the file handle object */
- fh = kzalloc(sizeof(struct vpif_fh), GFP_KERNEL);
- if (fh == NULL) {
- vpif_err("unable to allocate memory for file handle object\n");
- return -ENOMEM;
- }
-
- if (mutex_lock_interruptible(&common->lock)) {
- kfree(fh);
- return -ERESTARTSYS;
- }
- /* store pointer to fh in private_data member of filep */
- filep->private_data = fh;
- fh->channel = ch;
- fh->initialized = 0;
- if (!ch->initialized) {
- fh->initialized = 1;
- ch->initialized = 1;
- memset(&ch->vpifparams, 0, sizeof(ch->vpifparams));
- }
-
- /* Increment channel usrs counter */
- atomic_inc(&ch->usrs);
- /* Set io_allowed[VPIF_VIDEO_INDEX] member to false */
- fh->io_allowed[VPIF_VIDEO_INDEX] = 0;
- /* Initialize priority of this instance to default priority */
- fh->prio = V4L2_PRIORITY_UNSET;
- v4l2_prio_open(&ch->prio, &fh->prio);
- mutex_unlock(&common->lock);
-
- return 0;
-}
-
-/*
- * vpif_release: This function deletes buffer queue, frees the buffers and
- * the vpif file handle
- */
-static int vpif_release(struct file *filep)
-{
- struct vpif_fh *fh = filep->private_data;
- struct channel_obj *ch = fh->channel;
- struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
-
- mutex_lock(&common->lock);
- /* if this instance is doing IO */
- if (fh->io_allowed[VPIF_VIDEO_INDEX]) {
- /* Reset io_usrs member of channel object */
- common->io_usrs = 0;
- /* Free buffers allocated */
- vb2_queue_release(&common->buffer_queue);
- vb2_dma_contig_cleanup_ctx(common->alloc_ctx);
-
- common->numbuffers =
- config_params.numbuffers[ch->channel_id];
- }
-
- /* Decrement channel usrs counter */
- atomic_dec(&ch->usrs);
- /* If this file handle has initialize encoder device, reset it */
- if (fh->initialized)
- ch->initialized = 0;
-
- /* Close the priority */
- v4l2_prio_close(&ch->prio, fh->prio);
- filep->private_data = NULL;
- fh->initialized = 0;
- mutex_unlock(&common->lock);
- kfree(fh);
-
- return 0;
-}
-
/* functions implementing ioctls */
/**
* vpif_querycap() - QUERYCAP handler
@@ -834,7 +692,7 @@ static int vpif_querycap(struct file *file, void *priv,

cap->device_caps = V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_STREAMING;
cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
- snprintf(cap->driver, sizeof(cap->driver), "%s", dev_name(vpif_dev));
+ strlcpy(cap->driver, VPIF_DRIVER_NAME, sizeof(cap->driver));
snprintf(cap->bus_info, sizeof(cap->bus_info), "platform:%s",
dev_name(vpif_dev));
strlcpy(cap->card, config->card_name, sizeof(cap->card));
@@ -861,8 +719,8 @@ static int vpif_enum_fmt_vid_out(struct file *file, void *priv,
static int vpif_g_fmt_vid_out(struct file *file, void *priv,
struct v4l2_format *fmt)
{
- struct vpif_fh *fh = priv;
- struct channel_obj *ch = fh->channel;
+ struct video_device *vdev = video_devdata(file);
+ struct channel_obj *ch = video_get_drvdata(vdev);
struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];

/* Check the validity of the buffer type */
@@ -878,28 +736,14 @@ static int vpif_g_fmt_vid_out(struct file *file, void *priv,
static int vpif_s_fmt_vid_out(struct file *file, void *priv,
struct v4l2_format *fmt)
{
- struct vpif_fh *fh = priv;
- struct v4l2_pix_format *pixfmt;
- struct channel_obj *ch = fh->channel;
+ struct video_device *vdev = video_devdata(file);
+ struct channel_obj *ch = video_get_drvdata(vdev);
struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
- int ret = 0;
-
- if ((VPIF_CHANNEL2_VIDEO == ch->channel_id)
- || (VPIF_CHANNEL3_VIDEO == ch->channel_id)) {
- if (!fh->initialized) {
- vpif_dbg(1, debug, "Channel Busy\n");
- return -EBUSY;
- }
-
- /* Check for the priority */
- ret = v4l2_prio_check(&ch->prio, fh->prio);
- if (0 != ret)
- return ret;
- fh->initialized = 1;
- }
+ struct v4l2_pix_format *pixfmt;
+ int ret;

- if (common->started) {
- vpif_dbg(1, debug, "Streaming in progress\n");
+ if (vb2_is_streaming(&common->buffer_queue)) {
+ vpif_err("Streaming in progress\n");
return -EBUSY;
}

@@ -919,8 +763,8 @@ static int vpif_s_fmt_vid_out(struct file *file, void *priv,
static int vpif_try_fmt_vid_out(struct file *file, void *priv,
struct v4l2_format *fmt)
{
- struct vpif_fh *fh = priv;
- struct channel_obj *ch = fh->channel;
+ struct video_device *vdev = video_devdata(file);
+ struct channel_obj *ch = video_get_drvdata(vdev);
struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
struct v4l2_pix_format *pixfmt = &fmt->fmt.pix;
int ret = 0;
@@ -934,131 +778,18 @@ static int vpif_try_fmt_vid_out(struct file *file, void *priv,
return ret;
}

-static int vpif_reqbufs(struct file *file, void *priv,
- struct v4l2_requestbuffers *reqbuf)
-{
- struct vpif_fh *fh = priv;
- struct channel_obj *ch = fh->channel;
- struct common_obj *common;
- enum v4l2_field field;
- struct vb2_queue *q;
- u8 index = 0;
- int ret;
-
- /* This file handle has not initialized the channel,
- It is not allowed to do settings */
- if ((VPIF_CHANNEL2_VIDEO == ch->channel_id)
- || (VPIF_CHANNEL3_VIDEO == ch->channel_id)) {
- if (!fh->initialized) {
- vpif_err("Channel Busy\n");
- return -EBUSY;
- }
- }
-
- if (V4L2_BUF_TYPE_VIDEO_OUTPUT != reqbuf->type)
- return -EINVAL;
-
- index = VPIF_VIDEO_INDEX;
-
- common = &ch->common[index];
-
- if (common->fmt.type != reqbuf->type || !vpif_dev)
- return -EINVAL;
- if (0 != common->io_usrs)
- return -EBUSY;
-
- if (reqbuf->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
- if (common->fmt.fmt.pix.field == V4L2_FIELD_ANY)
- field = V4L2_FIELD_INTERLACED;
- else
- field = common->fmt.fmt.pix.field;
- } else {
- field = V4L2_VBI_INTERLACED;
- }
- /* Initialize videobuf2 queue as per the buffer type */
- common->alloc_ctx = vb2_dma_contig_init_ctx(vpif_dev);
- if (IS_ERR(common->alloc_ctx)) {
- vpif_err("Failed to get the context\n");
- return PTR_ERR(common->alloc_ctx);
- }
- q = &common->buffer_queue;
- q->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
- q->io_modes = VB2_MMAP | VB2_USERPTR;
- q->drv_priv = fh;
- q->ops = &video_qops;
- q->mem_ops = &vb2_dma_contig_memops;
- q->buf_struct_size = sizeof(struct vpif_disp_buffer);
- q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
- q->min_buffers_needed = 1;
-
- ret = vb2_queue_init(q);
- if (ret) {
- vpif_err("vpif_display: vb2_queue_init() failed\n");
- vb2_dma_contig_cleanup_ctx(common->alloc_ctx);
- return ret;
- }
- /* Set io allowed member of file handle to TRUE */
- fh->io_allowed[index] = 1;
- /* Increment io usrs member of channel object to 1 */
- common->io_usrs = 1;
- /* Store type of memory requested in channel object */
- common->memory = reqbuf->memory;
- INIT_LIST_HEAD(&common->dma_queue);
- /* Allocate buffers */
- return vb2_reqbufs(&common->buffer_queue, reqbuf);
-}
-
-static int vpif_querybuf(struct file *file, void *priv,
- struct v4l2_buffer *tbuf)
-{
- struct vpif_fh *fh = priv;
- struct channel_obj *ch = fh->channel;
- struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
-
- if (common->fmt.type != tbuf->type)
- return -EINVAL;
-
- return vb2_querybuf(&common->buffer_queue, tbuf);
-}
-
-static int vpif_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
-{
- struct vpif_fh *fh = NULL;
- struct channel_obj *ch = NULL;
- struct common_obj *common = NULL;
-
- if (!buf || !priv)
- return -EINVAL;
-
- fh = priv;
- ch = fh->channel;
- if (!ch)
- return -EINVAL;
-
- common = &(ch->common[VPIF_VIDEO_INDEX]);
- if (common->fmt.type != buf->type)
- return -EINVAL;
-
- if (!fh->io_allowed[VPIF_VIDEO_INDEX]) {
- vpif_err("fh->io_allowed\n");
- return -EACCES;
- }
-
- return vb2_qbuf(&common->buffer_queue, buf);
-}
-
static int vpif_s_std(struct file *file, void *priv, v4l2_std_id std_id)
{
- struct vpif_fh *fh = priv;
- struct channel_obj *ch = fh->channel;
+ struct video_device *vdev = video_devdata(file);
+ struct channel_obj *ch = video_get_drvdata(vdev);
struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
int ret = 0;

if (!(std_id & VPIF_V4L2_STD))
return -EINVAL;

- if (common->started) {
- vpif_err("streaming in progress\n");
+ if (vb2_is_streaming(&common->buffer_queue)) {
+ vpif_err("Streaming in progress\n");
return -EBUSY;
}

@@ -1096,123 +827,18 @@ static int vpif_s_std(struct file *file, void *priv, v4l2_std_id std_id)

static int vpif_g_std(struct file *file, void *priv, v4l2_std_id *std)
{
- struct vpif_fh *fh = priv;
- struct channel_obj *ch = fh->channel;
+ struct video_device *vdev = video_devdata(file);
+ struct channel_obj *ch = video_get_drvdata(vdev);

*std = ch->video.stdid;
return 0;
}

-static int vpif_dqbuf(struct file *file, void *priv, struct v4l2_buffer *p)
-{
- struct vpif_fh *fh = priv;
- struct channel_obj *ch = fh->channel;
- struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
-
- return vb2_dqbuf(&common->buffer_queue, p,
- (file->f_flags & O_NONBLOCK));
-}
-
-static int vpif_streamon(struct file *file, void *priv,
- enum v4l2_buf_type buftype)
-{
- struct vpif_fh *fh = priv;
- struct channel_obj *ch = fh->channel;
- struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
- struct channel_obj *oth_ch = vpif_obj.dev[!ch->channel_id];
- int ret = 0;
-
- if (buftype != V4L2_BUF_TYPE_VIDEO_OUTPUT) {
- vpif_err("buffer type not supported\n");
- return -EINVAL;
- }
-
- if (!fh->io_allowed[VPIF_VIDEO_INDEX]) {
- vpif_err("fh->io_allowed\n");
- return -EACCES;
- }
-
- /* If Streaming is already started, return error */
- if (common->started) {
- vpif_err("channel->started\n");
- return -EBUSY;
- }
-
- if ((ch->channel_id == VPIF_CHANNEL2_VIDEO
- && oth_ch->common[VPIF_VIDEO_INDEX].started &&
- ch->vpifparams.std_info.ycmux_mode == 0)
- || ((ch->channel_id == VPIF_CHANNEL3_VIDEO)
- && (2 == oth_ch->common[VPIF_VIDEO_INDEX].started))) {
- vpif_err("other channel is using\n");
- return -EBUSY;
- }
-
- ret = vpif_check_format(ch, &common->fmt.fmt.pix);
- if (ret < 0)
- return ret;
-
- /* Call vb2_streamon to start streaming in videobuf2 */
- ret = vb2_streamon(&common->buffer_queue, buftype);
- if (ret < 0) {
- vpif_err("vb2_streamon\n");
- return ret;
- }
-
- return ret;
-}
-
-static int vpif_streamoff(struct file *file, void *priv,
- enum v4l2_buf_type buftype)
-{
- struct vpif_fh *fh = priv;
- struct channel_obj *ch = fh->channel;
- struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
- struct vpif_display_config *vpif_config_data =
- vpif_dev->platform_data;
-
- if (buftype != V4L2_BUF_TYPE_VIDEO_OUTPUT) {
- vpif_err("buffer type not supported\n");
- return -EINVAL;
- }
-
- if (!fh->io_allowed[VPIF_VIDEO_INDEX]) {
- vpif_err("fh->io_allowed\n");
- return -EACCES;
- }
-
- if (!common->started) {
- vpif_err("channel->started\n");
- return -EINVAL;
- }
-
- if (buftype == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
- /* disable channel */
- if (VPIF_CHANNEL2_VIDEO == ch->channel_id) {
- if (vpif_config_data->
- chan_config[VPIF_CHANNEL2_VIDEO].clip_en)
- channel2_clipping_enable(0);
- enable_channel2(0);
- channel2_intr_enable(0);
- }
- if ((VPIF_CHANNEL3_VIDEO == ch->channel_id) ||
- (2 == common->started)) {
- if (vpif_config_data->
- chan_config[VPIF_CHANNEL3_VIDEO].clip_en)
- channel3_clipping_enable(0);
- enable_channel3(0);
- channel3_intr_enable(0);
- }
- }
-
- common->started = 0;
- return vb2_streamoff(&common->buffer_queue, buftype);
-}
-
static int vpif_cropcap(struct file *file, void *priv,
struct v4l2_cropcap *crop)
{
- struct vpif_fh *fh = priv;
- struct channel_obj *ch = fh->channel;
+ struct video_device *vdev = video_devdata(file);
+ struct channel_obj *ch = video_get_drvdata(vdev);
struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
if (V4L2_BUF_TYPE_VIDEO_OUTPUT != crop->type)
return -EINVAL;
@@ -1231,8 +857,8 @@ static int vpif_enum_output(struct file *file, void *fh,

struct vpif_display_config *config = vpif_dev->platform_data;
struct vpif_display_chan_config *chan_cfg;
- struct vpif_fh *vpif_handler = fh;
- struct channel_obj *ch = vpif_handler->channel;
+ struct video_device *vdev = video_devdata(file);
+ struct channel_obj *ch = video_get_drvdata(vdev);

chan_cfg = &config->chan_config[ch->channel_id];
if (output->index >= chan_cfg->output_count) {
@@ -1327,8 +953,8 @@ static int vpif_s_output(struct file *file, void *priv, unsigned int i)
{
struct vpif_display_config *config = vpif_dev->platform_data;
struct vpif_display_chan_config *chan_cfg;
- struct vpif_fh *fh = priv;
- struct channel_obj *ch = fh->channel;
+ struct video_device *vdev = video_devdata(file);
+ struct channel_obj *ch = video_get_drvdata(vdev);
struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];

chan_cfg = &config->chan_config[ch->channel_id];
@@ -1336,7 +962,7 @@ static int vpif_s_output(struct file *file, void *priv, unsigned int i)
if (i >= chan_cfg->output_count)
return -EINVAL;

- if (common->started) {
+ if (vb2_is_streaming(&common->buffer_queue)) {
vpif_err("Streaming in progress\n");
return -EBUSY;
}
@@ -1346,32 +972,14 @@ static int vpif_s_output(struct file *file, void *priv, unsigned int i)

static int vpif_g_output(struct file *file, void *priv, unsigned int *i)
{
- struct vpif_fh *fh = priv;
- struct channel_obj *ch = fh->channel;
+ struct video_device *vdev = video_devdata(file);
+ struct channel_obj *ch = video_get_drvdata(vdev);

*i = ch->output_idx;

return 0;
}

-static int vpif_g_priority(struct file *file, void *priv, enum v4l2_priority *p)
-{
- struct vpif_fh *fh = priv;
- struct channel_obj *ch = fh->channel;
-
- *p = v4l2_prio_max(&ch->prio);
-
- return 0;
-}
-
-static int vpif_s_priority(struct file *file, void *priv, enum v4l2_priority p)
-{
- struct vpif_fh *fh = priv;
- struct channel_obj *ch = fh->channel;
-
- return v4l2_prio_change(&ch->prio, &fh->prio, p);
-}
-
/**
* vpif_enum_dv_timings() - ENUM_DV_TIMINGS handler
* @file: file ptr
@@ -1382,8 +990,8 @@ static int
vpif_enum_dv_timings(struct file *file, void *priv,
struct v4l2_enum_dv_timings *timings)
{
- struct vpif_fh *fh = priv;
- struct channel_obj *ch = fh->channel;
+ struct video_device *vdev = video_devdata(file);
+ struct channel_obj *ch = video_get_drvdata(vdev);
int ret;

ret = v4l2_subdev_call(ch->sd, video, enum_dv_timings, timings);
@@ -1401,14 +1009,18 @@ vpif_enum_dv_timings(struct file *file, void *priv,
static int vpif_s_dv_timings(struct file *file, void *priv,
struct v4l2_dv_timings *timings)
{
- struct vpif_fh *fh = priv;
- struct channel_obj *ch = fh->channel;
+ struct video_device *vdev = video_devdata(file);
+ struct channel_obj *ch = video_get_drvdata(vdev);
+ struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
struct vpif_params *vpifparams = &ch->vpifparams;
struct vpif_channel_config_params *std_info = &vpifparams->std_info;
struct video_obj *vid_ch = &ch->video;
struct v4l2_bt_timings *bt = &vid_ch->dv_timings.bt;
int ret;

+ if (vb2_is_streaming(&common->buffer_queue))
+ return -EBUSY;
+
if (timings->type != V4L2_DV_BT_656_1120) {
vpif_dbg(2, debug, "Timing type not defined\n");
return -EINVAL;
@@ -1490,8 +1102,8 @@ static int vpif_s_dv_timings(struct file *file, void *priv,
static int vpif_g_dv_timings(struct file *file, void *priv,
struct v4l2_dv_timings *timings)
{
- struct vpif_fh *fh = priv;
- struct channel_obj *ch = fh->channel;
+ struct video_device *vdev = video_devdata(file);
+ struct channel_obj *ch = video_get_drvdata(vdev);
struct video_obj *vid_ch = &ch->video;

*timings = vid_ch->dv_timings;
@@ -1516,47 +1128,45 @@ static int vpif_log_status(struct file *filep, void *priv)

/* vpif display ioctl operations */
static const struct v4l2_ioctl_ops vpif_ioctl_ops = {
- .vidioc_querycap = vpif_querycap,
- .vidioc_g_priority = vpif_g_priority,
- .vidioc_s_priority = vpif_s_priority,
+ .vidioc_querycap = vpif_querycap,
.vidioc_enum_fmt_vid_out = vpif_enum_fmt_vid_out,
- .vidioc_g_fmt_vid_out = vpif_g_fmt_vid_out,
- .vidioc_s_fmt_vid_out = vpif_s_fmt_vid_out,
- .vidioc_try_fmt_vid_out = vpif_try_fmt_vid_out,
- .vidioc_reqbufs = vpif_reqbufs,
- .vidioc_querybuf = vpif_querybuf,
- .vidioc_qbuf = vpif_qbuf,
- .vidioc_dqbuf = vpif_dqbuf,
- .vidioc_streamon = vpif_streamon,
- .vidioc_streamoff = vpif_streamoff,
- .vidioc_s_std = vpif_s_std,
+ .vidioc_g_fmt_vid_out = vpif_g_fmt_vid_out,
+ .vidioc_s_fmt_vid_out = vpif_s_fmt_vid_out,
+ .vidioc_try_fmt_vid_out = vpif_try_fmt_vid_out,
+
+ .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_streamon = vb2_ioctl_streamon,
+ .vidioc_streamoff = vb2_ioctl_streamoff,
+
+ .vidioc_s_std = vpif_s_std,
.vidioc_g_std = vpif_g_std,
+
.vidioc_enum_output = vpif_enum_output,
.vidioc_s_output = vpif_s_output,
.vidioc_g_output = vpif_g_output,
- .vidioc_cropcap = vpif_cropcap,
- .vidioc_enum_dv_timings = vpif_enum_dv_timings,
- .vidioc_s_dv_timings = vpif_s_dv_timings,
- .vidioc_g_dv_timings = vpif_g_dv_timings,
+ .vidioc_cropcap = vpif_cropcap,
+
+ .vidioc_enum_dv_timings = vpif_enum_dv_timings,
+ .vidioc_s_dv_timings = vpif_s_dv_timings,
+ .vidioc_g_dv_timings = vpif_g_dv_timings,
+
.vidioc_log_status = vpif_log_status,
};

static const struct v4l2_file_operations vpif_fops = {
.owner = THIS_MODULE,
- .open = vpif_open,
- .release = vpif_release,
+ .open = v4l2_fh_open,
+ .release = vb2_fop_release,
.unlocked_ioctl = video_ioctl2,
- .mmap = vpif_mmap,
- .poll = vpif_poll
-};
-
-static struct video_device vpif_video_template = {
- .name = "vpif",
- .fops = &vpif_fops,
- .ioctl_ops = &vpif_ioctl_ops,
+ .mmap = vb2_fop_mmap,
+ .poll = vb2_fop_poll,
};

-/*Configure the channels, buffer sizei, request irq */
+/* Configure the channels, buffer size */
static int initialize_vpif(void)
{
int free_channel_objects_index;
@@ -1638,18 +1248,17 @@ static int vpif_async_bound(struct v4l2_async_notifier *notifier,
static int vpif_probe_complete(void)
{
struct common_obj *common;
+ struct video_device *vdev;
struct channel_obj *ch;
+ struct vb2_queue *q;
int j, err, k;

for (j = 0; j < VPIF_DISPLAY_MAX_DEVICES; j++) {
ch = vpif_obj.dev[j];
/* Initialize field of the channel objects */
- atomic_set(&ch->usrs, 0);
for (k = 0; k < VPIF_NUMOBJECTS; k++) {
ch->common[k].numbuffers = 0;
common = &ch->common[k];
- common->io_usrs = 0;
- common->started = 0;
spin_lock_init(&common->irqlock);
mutex_init(&common->lock);
common->numbuffers = 0;
@@ -1663,9 +1272,10 @@ static int vpif_probe_complete(void)
memset(&common->fmt, 0, sizeof(common->fmt));
common->numbuffers = config_params.numbuffers[k];
}
- ch->initialized = 0;
+
if (vpif_obj.config->subdev_count)
ch->sd = vpif_obj.sd[0];
+
ch->channel_id = j;
if (j < 2)
ch->common[VPIF_VIDEO_INDEX].numbuffers =
@@ -1675,26 +1285,64 @@ static int vpif_probe_complete(void)

memset(&ch->vpifparams, 0, sizeof(ch->vpifparams));

- /* Initialize prio member of channel object */
- v4l2_prio_init(&ch->prio);
ch->common[VPIF_VIDEO_INDEX].fmt.type =
V4L2_BUF_TYPE_VIDEO_OUTPUT;
- ch->video_dev->lock = &common->lock;
- video_set_drvdata(ch->video_dev, ch);

/* select output 0 */
err = vpif_set_output(vpif_obj.config, ch, 0);
if (err)
goto probe_out;

+ /* Initialize vb2 queue */
+ q = &common->buffer_queue;
+ q->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
+ q->io_modes = VB2_MMAP | VB2_USERPTR;
+ q->drv_priv = ch;
+ q->ops = &video_qops;
+ q->mem_ops = &vb2_dma_contig_memops;
+ q->buf_struct_size = sizeof(struct vpif_disp_buffer);
+ q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
+ q->min_buffers_needed = 3;
+ q->lock = &common->lock;
+ q->gfp_flags = GFP_DMA32;
+
+ err = vb2_queue_init(q);
+ if (err) {
+ vpif_err("vpif_display: vb2_queue_init() failed\n");
+ vb2_dma_contig_cleanup_ctx(common->alloc_ctx);
+ goto probe_out;
+ }
+
+ common->alloc_ctx = vb2_dma_contig_init_ctx(vpif_dev);
+ if (IS_ERR(common->alloc_ctx)) {
+ vpif_err("Failed to get the context\n");
+ err = PTR_ERR(common->alloc_ctx);
+ goto probe_out;
+ }
+
+ INIT_LIST_HEAD(&common->dma_queue);
+
+ /* Initialize the video_device structure */
+ vdev = ch->video_dev;
+ strlcpy(vdev->name, VPIF_DRIVER_NAME, sizeof(vdev->name));
+ vdev->release = video_device_release;
+ vdev->fops = &vpif_fops;
+ vdev->ioctl_ops = &vpif_ioctl_ops;
+ vdev->lock = &common->lock;
+ vdev->queue = q;
+ vdev->v4l2_dev = &vpif_obj.v4l2_dev;
+ vdev->vfl_dir = VFL_DIR_TX;
+ set_bit(V4L2_FL_USE_FH_PRIO, &vdev->flags);
+ video_set_drvdata(vdev, ch);
+
/* register video device */
+ err = video_register_device(vdev,
+ VFL_TYPE_GRABBER, (j ? 3 : 2));
+ if (err < 0)
+ goto probe_out;
vpif_dbg(1, debug, "channel=%x,channel->video_dev=%x\n",
(int)ch, (int)&ch->video_dev);

- err = video_register_device(ch->video_dev,
- VFL_TYPE_GRABBER, (j ? 3 : 2));
- if (err < 0)
- goto probe_out;
}

return 0;
@@ -1702,6 +1350,9 @@ static int vpif_probe_complete(void)
probe_out:
for (k = 0; k < j; k++) {
ch = vpif_obj.dev[k];
+ common = &ch->common[k];
+
+ vb2_dma_contig_cleanup_ctx(common->alloc_ctx);
video_unregister_device(ch->video_dev);
video_device_release(ch->video_dev);
ch->video_dev = NULL;
@@ -1746,7 +1397,7 @@ static __init int vpif_probe(struct platform_device *pdev)

while ((res = platform_get_resource(pdev, IORESOURCE_IRQ, res_idx))) {
err = devm_request_irq(&pdev->dev, res->start, vpif_channel_isr,
- IRQF_SHARED, "VPIF_Display",
+ IRQF_SHARED, VPIF_DRIVER_NAME,
(void *)(&vpif_obj.dev[res_idx]->
channel_id));
if (err) {
@@ -1772,15 +1423,6 @@ static __init int vpif_probe(struct platform_device *pdev)
goto vpif_unregister;
}

- /* Initialize field of video device */
- *vfd = vpif_video_template;
- vfd->v4l2_dev = &vpif_obj.v4l2_dev;
- vfd->release = video_device_release;
- vfd->vfl_dir = VFL_DIR_TX;
- snprintf(vfd->name, sizeof(vfd->name),
- "VPIF_Display_DRIVER_V%s",
- VPIF_DISPLAY_VERSION);
-
/* Set video_dev to the video device */
ch->video_dev = vfd;
}
@@ -1867,6 +1509,7 @@ vpif_unregister:
*/
static int vpif_remove(struct platform_device *device)
{
+ struct common_obj *common;
struct channel_obj *ch;
int i;

@@ -1877,9 +1520,11 @@ static int vpif_remove(struct platform_device *device)
for (i = 0; i < VPIF_DISPLAY_MAX_DEVICES; i++) {
/* Get the pointer to the channel object */
ch = vpif_obj.dev[i];
+ common = &ch->common[i];
/* Unregister video device */
video_unregister_device(ch->video_dev);

+ vb2_dma_contig_cleanup_ctx(common->alloc_ctx);
ch->video_dev = NULL;
kfree(vpif_obj.dev[i]);
}
@@ -1887,7 +1532,7 @@ static int vpif_remove(struct platform_device *device)
return 0;
}

-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
static int vpif_suspend(struct device *dev)
{
struct common_obj *common;
@@ -1898,18 +1543,19 @@ static int vpif_suspend(struct device *dev)
/* Get the pointer to the channel object */
ch = vpif_obj.dev[i];
common = &ch->common[VPIF_VIDEO_INDEX];
+
+ if (!vb2_is_streaming(&common->buffer_queue))
+ continue;
+
mutex_lock(&common->lock);
- if (atomic_read(&ch->usrs) && common->io_usrs) {
- /* Disable channel */
- if (ch->channel_id == VPIF_CHANNEL2_VIDEO) {
- enable_channel2(0);
- channel2_intr_enable(0);
- }
- if (ch->channel_id == VPIF_CHANNEL3_VIDEO ||
- common->started == 2) {
- enable_channel3(0);
- channel3_intr_enable(0);
- }
+ /* Disable channel */
+ if (ch->channel_id == VPIF_CHANNEL2_VIDEO) {
+ enable_channel2(0);
+ channel2_intr_enable(0);
+ }
+ if (ch->channel_id == VPIF_CHANNEL3_VIDEO || ycmux_mode == 2) {
+ enable_channel3(0);
+ channel3_intr_enable(0);
}
mutex_unlock(&common->lock);
}
@@ -1928,40 +1574,34 @@ static int vpif_resume(struct device *dev)
/* Get the pointer to the channel object */
ch = vpif_obj.dev[i];
common = &ch->common[VPIF_VIDEO_INDEX];
+
+ if (!vb2_is_streaming(&common->buffer_queue))
+ continue;
+
mutex_lock(&common->lock);
- if (atomic_read(&ch->usrs) && common->io_usrs) {
- /* Enable channel */
- if (ch->channel_id == VPIF_CHANNEL2_VIDEO) {
- enable_channel2(1);
- channel2_intr_enable(1);
- }
- if (ch->channel_id == VPIF_CHANNEL3_VIDEO ||
- common->started == 2) {
- enable_channel3(1);
- channel3_intr_enable(1);
- }
+ /* Enable channel */
+ if (ch->channel_id == VPIF_CHANNEL2_VIDEO) {
+ enable_channel2(1);
+ channel2_intr_enable(1);
+ }
+ if (ch->channel_id == VPIF_CHANNEL3_VIDEO || ycmux_mode == 2) {
+ enable_channel3(1);
+ channel3_intr_enable(1);
}
mutex_unlock(&common->lock);
}

return 0;
}
-
-static const struct dev_pm_ops vpif_pm = {
- .suspend = vpif_suspend,
- .resume = vpif_resume,
-};
-
-#define vpif_pm_ops (&vpif_pm)
-#else
-#define vpif_pm_ops NULL
#endif

+static SIMPLE_DEV_PM_OPS(vpif_pm_ops, vpif_suspend, vpif_resume);
+
static __refdata struct platform_driver vpif_driver = {
.driver = {
- .name = "vpif_display",
+ .name = VPIF_DRIVER_NAME,
.owner = THIS_MODULE,
- .pm = vpif_pm_ops,
+ .pm = &vpif_pm_ops,
},
.probe = vpif_probe,
.remove = vpif_remove,
diff --git a/drivers/media/platform/davinci/vpif_display.h b/drivers/media/platform/davinci/vpif_display.h
index 4d0485b..72f9b4f 100644
--- a/drivers/media/platform/davinci/vpif_display.h
+++ b/drivers/media/platform/davinci/vpif_display.h
@@ -67,17 +67,11 @@ struct vpif_disp_buffer {
};

struct common_obj {
- /* Buffer specific parameters */
- u8 *fbuffers[VIDEO_MAX_FRAME]; /* List of buffer pointers for
- * storing frames */
u32 numbuffers; /* number of buffers */
struct vpif_disp_buffer *cur_frm; /* Pointer pointing to current
* vb2_buffer */
struct vpif_disp_buffer *next_frm; /* Pointer pointing to next
* vb2_buffer */
- enum v4l2_memory memory; /* This field keeps track of
- * type of buffer exchange
- * method user has selected */
struct v4l2_format fmt; /* Used to store the format */
struct vb2_queue buffer_queue; /* Buffer queue used in
* video-buf */
@@ -90,10 +84,6 @@ struct common_obj {
/* channel specific parameters */
struct mutex lock; /* lock used to access this
* structure */
- u32 io_usrs; /* number of users performing
- * IO */
- u8 started; /* Indicates whether streaming
- * started */
u32 ytop_off; /* offset of Y top from the
* starting of the buffer */
u32 ybtm_off; /* offset of Y bottom from the
@@ -103,7 +93,7 @@ struct common_obj {
u32 cbtm_off; /* offset of C bottom from the
* starting of the buffer */
/* Function pointer to set the addresses */
- void (*set_addr) (unsigned long, unsigned long,
+ void (*set_addr)(unsigned long, unsigned long,
unsigned long, unsigned long);
u32 height;
u32 width;
@@ -113,14 +103,8 @@ struct channel_obj {
/* V4l2 specific parameters */
struct video_device *video_dev; /* Identifies video device for
* this channel */
- struct v4l2_prio_state prio; /* Used to keep track of state of
- * the priority */
- atomic_t usrs; /* number of open instances of
- * the channel */
u32 field_id; /* Indicates id of the field
* which is being displayed */
- u8 initialized; /* flag to indicate whether
- * encoder is initialized */
u32 output_idx; /* Current output index */
struct v4l2_subdev *sd; /* Current output subdev(may be NULL) */

@@ -130,19 +114,6 @@ struct channel_obj {
struct video_obj video;
};

-/* File handle structure */
-struct vpif_fh {
- struct channel_obj *channel; /* pointer to channel object for
- * opened device */
- u8 io_allowed[VPIF_NUMOBJECTS]; /* Indicates whether this file handle
- * is doing IO */
- enum v4l2_priority prio; /* Used to keep track priority of
- * this instance */
- u8 initialized; /* Used to keep track of whether this
- * file handle has initialized
- * channel or not */
-};
-
/* vpif device structure */
struct vpif_device {
struct v4l2_device v4l2_dev;
--
1.7.9.5

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