[PATCH v3 1/2] media: davinci: vpif capture: upgrade the driver with v4l offerings

From: Lad Prabhakar
Date: Sat Apr 19 2014 - 07:42:14 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_capture.c | 1474 ++++++++-----------------
drivers/media/platform/davinci/vpif_capture.h | 43 +-
2 files changed, 438 insertions(+), 1079 deletions(-)

diff --git a/drivers/media/platform/davinci/vpif_capture.c b/drivers/media/platform/davinci/vpif_capture.c
index 8dea0b8..7ecf6b2 100644
--- a/drivers/media/platform/davinci/vpif_capture.c
+++ b/drivers/media/platform/davinci/vpif_capture.c
@@ -1,5 +1,6 @@
/*
* Copyright (C) 2009 Texas Instruments Inc
+ * 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 published by
@@ -37,33 +38,15 @@ MODULE_VERSION(VPIF_CAPTURE_VERSION);
#define vpif_dbg(level, debug, fmt, arg...) \
v4l2_dbg(level, debug, &vpif_obj.v4l2_dev, fmt, ## arg)

+#define VPIF_DRIVER_NAME "vpif_capture"
+
static int debug = 1;
-static u32 ch0_numbuffers = 3;
-static u32 ch1_numbuffers = 3;
-static u32 ch0_bufsize = 1920 * 1080 * 2;
-static u32 ch1_bufsize = 720 * 576 * 2;

module_param(debug, int, 0644);
-module_param(ch0_numbuffers, uint, S_IRUGO);
-module_param(ch1_numbuffers, uint, S_IRUGO);
-module_param(ch0_bufsize, uint, S_IRUGO);
-module_param(ch1_bufsize, uint, S_IRUGO);

MODULE_PARM_DESC(debug, "Debug level 0-1");
-MODULE_PARM_DESC(ch2_numbuffers, "Channel0 buffer count (default:3)");
-MODULE_PARM_DESC(ch3_numbuffers, "Channel1 buffer count (default:3)");
-MODULE_PARM_DESC(ch2_bufsize, "Channel0 buffer size (default:1920 x 1080 x 2)");
-MODULE_PARM_DESC(ch3_bufsize, "Channel1 buffer size (default:720 x 576 x 2)");
-
-static struct vpif_config_params config_params = {
- .min_numbuffers = 3,
- .numbuffers[0] = 3,
- .numbuffers[1] = 3,
- .min_bufsize[0] = 720 * 480 * 2,
- .min_bufsize[1] = 720 * 480 * 2,
- .channel_bufsize[0] = 1920 * 1080 * 2,
- .channel_bufsize[1] = 720 * 576 * 2,
-};
+
+static u8 channel_first_int[VPIF_NUMBER_OF_OBJECTS][2] = { {1, 1} };

/* global variables */
static struct vpif_device vpif_obj = { {NULL} };
@@ -71,8 +54,18 @@ static struct device *vpif_dev;
static void vpif_calculate_offsets(struct channel_obj *ch);
static void vpif_config_addr(struct channel_obj *ch, int muxmode);

+/*
+ * Is set to 1 in case of SDTV formats, 2 in case of HDTV formats.
+ */
+static int ycmux_mode;
+
+static inline struct vpif_cap_buffer *to_vpif_buffer(struct vb2_buffer *vb)
+{
+ return container_of(vb, struct vpif_cap_buffer, vb);
+}
+
/**
- * buffer_prepare : callback function for buffer prepare
+ * vpif_buffer_prepare : callback function for buffer prepare
* @vb: ptr to vb2_buffer
*
* This is the callback function for buffer prepare when vb2_qbuf()
@@ -81,10 +74,8 @@ static void vpif_config_addr(struct channel_obj *ch, int muxmode);
*/
static int vpif_buffer_prepare(struct vb2_buffer *vb)
{
- /* Get the file handle object and channel object */
- struct vpif_fh *fh = vb2_get_drv_priv(vb->vb2_queue);
struct vb2_queue *q = vb->vb2_queue;
- struct channel_obj *ch = fh->channel;
+ struct channel_obj *ch = vb2_get_drv_priv(q);
struct common_obj *common;
unsigned long addr;

@@ -92,22 +83,21 @@ static int vpif_buffer_prepare(struct vb2_buffer *vb)

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);
- if (vb2_plane_vaddr(vb, 0) &&
- vb2_get_plane_payload(vb, 0) > vb2_plane_size(vb, 0))
- goto exit;
- addr = vb2_dma_contig_plane_dma_addr(vb, 0);
-
- if (q->streaming) {
- if (!IS_ALIGNED((addr + common->ytop_off), 8) ||
- !IS_ALIGNED((addr + common->ybtm_off), 8) ||
- !IS_ALIGNED((addr + common->ctop_off), 8) ||
- !IS_ALIGNED((addr + common->cbtm_off), 8))
- goto exit;
- }
+ vb2_set_plane_payload(vb, 0, common->fmt.fmt.pix.sizeimage);
+ if (vb2_get_plane_payload(vb, 0) > vb2_plane_size(vb, 0))
+ return -EINVAL;
+
+ vb->v4l2_buf.field = common->fmt.fmt.pix.field;
+
+ addr = vb2_dma_contig_plane_dma_addr(vb, 0);
+
+ if (!IS_ALIGNED((addr + common->ytop_off), 8) ||
+ !IS_ALIGNED((addr + common->ybtm_off), 8) ||
+ !IS_ALIGNED((addr + common->ctop_off), 8) ||
+ !IS_ALIGNED((addr + common->cbtm_off), 8)) {
+ goto exit;
}
+
return 0;
exit:
vpif_dbg(1, debug, "buffer_prepare:offset is not aligned to 8 bytes\n");
@@ -131,63 +121,36 @@ static int vpif_buffer_queue_setup(struct vb2_queue *vq,
unsigned int *nbuffers, unsigned int *nplanes,
unsigned int sizes[], void *alloc_ctxs[])
{
- /* Get the file handle object and channel object */
- 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 size;

common = &ch->common[VPIF_VIDEO_INDEX];

vpif_dbg(2, debug, "vpif_buffer_setup\n");

- /* If memory type is not mmap, return */
- if (V4L2_MEMORY_MMAP == common->memory) {
- /* Calculate the size of the buffer */
- size = config_params.channel_bufsize[ch->channel_id];
- /*
- * Checking if the buffer size exceeds the available buffer
- * ycmux_mode = 0 means 1 channel mode HD and
- * ycmux_mode = 1 means 2 channels mode SD
- */
- if (ch->vpifparams.std_info.ycmux_mode == 0) {
- if (config_params.video_limit[ch->channel_id])
- while (size * *nbuffers >
- (config_params.video_limit[0]
- + config_params.video_limit[1]))
- (*nbuffers)--;
- } else {
- if (config_params.video_limit[ch->channel_id])
- while (size * *nbuffers >
- config_params.video_limit[ch->channel_id])
- (*nbuffers)--;
- }
-
- } else {
- size = common->fmt.fmt.pix.sizeimage;
- }
-
- if (*nbuffers < config_params.min_numbuffers)
- *nbuffers = config_params.min_numbuffers;
+ if (vq->num_buffers + *nbuffers < 3)
+ *nbuffers = 3 - vq->num_buffers;

*nplanes = 1;
- sizes[0] = size;
+ sizes[0] = fmt ? fmt->fmt.pix.sizeimage : common->fmt.fmt.pix.sizeimage;
alloc_ctxs[0] = common->alloc_ctx;

+ /* Calculate the offset for Y and C data in the buffer */
+ vpif_calculate_offsets(ch);
+
return 0;
}

/**
* vpif_buffer_queue : Callback function to add buffer to DMA queue
* @vb: ptr to vb2_buffer
+ *
+ * This callback fucntion queues the buffer to DMA engine
*/
static void vpif_buffer_queue(struct vb2_buffer *vb)
{
- /* Get the file handle object and channel object */
- struct vpif_fh *fh = vb2_get_drv_priv(vb->vb2_queue);
- struct channel_obj *ch = fh->channel;
- struct vpif_cap_buffer *buf = container_of(vb,
- struct vpif_cap_buffer, vb);
+ struct channel_obj *ch = vb2_get_drv_priv(vb->vb2_queue);
+ struct vpif_cap_buffer *buf = to_vpif_buffer(vb);
struct common_obj *common;
unsigned long flags;

@@ -202,124 +165,65 @@ static void vpif_buffer_queue(struct vb2_buffer *vb)
}

/**
- * vpif_buf_cleanup : Callback function to free buffer
+ * vpif_start_streaming : Starts the DMA engine for streaming
* @vb: ptr to vb2_buffer
- *
- * This function is called from the videobuf2 layer to free memory
- * allocated to the buffers
+ * @count: number of buffers
*/
-static void vpif_buf_cleanup(struct vb2_buffer *vb)
-{
- /* Get the file handle object and channel object */
- struct vpif_fh *fh = vb2_get_drv_priv(vb->vb2_queue);
- struct vpif_cap_buffer *buf = container_of(vb,
- struct vpif_cap_buffer, vb);
- struct channel_obj *ch = fh->channel;
- struct common_obj *common;
- unsigned long flags;
-
- common = &ch->common[VPIF_VIDEO_INDEX];
-
- spin_lock_irqsave(&common->irqlock, flags);
- if (vb->state == VB2_BUF_STATE_ACTIVE)
- list_del_init(&buf->list);
- 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_cap_buffer *buf = container_of(vb,
- struct vpif_cap_buffer, vb);
-
- INIT_LIST_HEAD(&buf->list);
-
- return 0;
-}
-
-static u8 channel_first_int[VPIF_NUMBER_OF_OBJECTS][2] =
- { {1, 1} };
-
static int vpif_start_streaming(struct vb2_queue *vq, unsigned int count)
{
- struct vpif_capture_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_capture_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_cap_buffer *buf, *tmp;
+ unsigned long addr, flags;
int ret;

spin_lock_irqsave(&common->irqlock, flags);

- /* Get the next frame from the buffer queue */
- common->cur_frm = common->next_frm = list_entry(common->dma_queue.next,
- struct vpif_cap_buffer, list);
- /* Remove buffer from the buffer queue */
- 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);
-
- if ((vpif->std_info.frm_fmt &&
- ((common->fmt.fmt.pix.field != V4L2_FIELD_NONE) &&
- (common->fmt.fmt.pix.field != V4L2_FIELD_ANY))) ||
- (!vpif->std_info.frm_fmt &&
- (common->fmt.fmt.pix.field == V4L2_FIELD_NONE))) {
- vpif_dbg(1, debug, "conflict in field format and std format\n");
- return -EINVAL;
- }

+ vpif_config_data = vpif_dev->platform_data;
/* configure 1 or 2 channel mode */
if (vpif_config_data->setup_input_channel_mode) {
ret = vpif_config_data->
setup_input_channel_mode(vpif->std_info.ycmux_mode);
if (ret < 0) {
vpif_dbg(1, debug, "can't set vpif channel mode\n");
- return ret;
+ ret = -EINVAL;
+ goto err;
}
}

+ ret = v4l2_subdev_call(ch->sd, video, s_stream, 1);
+
+ if (ret && ret != -ENOIOCTLCMD && ret != -ENODEV) {
+ vpif_dbg(1, debug, "stream on failed in subdev\n");
+ goto err;
+ }
+
/* Call vpif_set_params function to set the parameters and addresses */
ret = vpif_set_video_params(vpif, ch->channel_id);
-
if (ret < 0) {
vpif_dbg(1, debug, "can't set video params\n");
- return ret;
+ ret = -EINVAL;
+ goto err;
}
-
- common->started = ret;
+ ycmux_mode = ret;
vpif_config_addr(ch, ret);

+ /* Get the next frame from the buffer queue */
+ common->cur_frm = common->next_frm = list_entry(common->dma_queue.next,
+ struct vpif_cap_buffer, list);
+ /* Remove buffer from the buffer queue */
+ 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,
@@ -330,31 +234,41 @@ static int vpif_start_streaming(struct vb2_queue *vq, unsigned int count)
* VPIF register
*/
channel_first_int[VPIF_VIDEO_INDEX][ch->channel_id] = 1;
- if ((VPIF_CHANNEL0_VIDEO == ch->channel_id)) {
+ if (VPIF_CHANNEL0_VIDEO == ch->channel_id) {
channel0_intr_assert();
channel0_intr_enable(1);
enable_channel0(1);
}
- if ((VPIF_CHANNEL1_VIDEO == ch->channel_id) ||
- (common->started == 2)) {
+ if (VPIF_CHANNEL1_VIDEO == ch->channel_id || ycmux_mode == 2) {
channel1_intr_assert();
channel1_intr_enable(1);
enable_channel1(1);
}

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 */
+/**
+ * vpif_stop_streaming : Stop the DMA engine
+ * @vq: ptr to vb2_queue
+ *
+ * This callback stops the DMA engine and any remaining buffers
+ * in the DMA queue are released.
+ */
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;
+ int ret;

common = &ch->common[VPIF_VIDEO_INDEX];

@@ -363,12 +277,17 @@ static int vpif_stop_streaming(struct vb2_queue *vq)
enable_channel0(0);
channel0_intr_enable(0);
}
- if ((VPIF_CHANNEL1_VIDEO == ch->channel_id) ||
- (2 == common->started)) {
+ if (VPIF_CHANNEL1_VIDEO == ch->channel_id || ycmux_mode == 2) {
enable_channel1(0);
channel1_intr_enable(0);
}
- common->started = 0;
+
+ ycmux_mode = 0;
+
+ ret = v4l2_subdev_call(ch->sd, video, s_stream, 0);
+
+ if (ret && ret != -ENOIOCTLCMD && ret != -ENODEV)
+ vpif_dbg(1, debug, "stream off failed in subdev\n");

/* release all active buffers */
spin_lock_irqsave(&common->irqlock, flags);
@@ -396,13 +315,11 @@ 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,
- .buf_cleanup = vpif_buf_cleanup,
.buf_queue = vpif_buffer_queue,
};

@@ -417,8 +334,7 @@ static struct vb2_ops video_qops = {
static void vpif_process_buffer_complete(struct common_obj *common)
{
v4l2_get_timestamp(&common->cur_frm->vb.v4l2_buf.timestamp);
- vb2_buffer_done(&common->cur_frm->vb,
- VB2_BUF_STATE_DONE);
+ vb2_buffer_done(&common->cur_frm->vb, VB2_BUF_STATE_DONE);
/* Make curFrm pointing to nextFrm */
common->cur_frm = common->next_frm;
}
@@ -433,7 +349,7 @@ static void vpif_process_buffer_complete(struct common_obj *common)
*/
static void vpif_schedule_next_buffer(struct common_obj *common)
{
- unsigned long addr = 0;
+ unsigned long addr;

spin_lock(&common->irqlock);
common->next_frm = list_entry(common->dma_queue.next,
@@ -478,9 +394,6 @@ static irqreturn_t vpif_channel_isr(int irq, void *dev_id)

for (i = 0; i < VPIF_NUMBER_OF_OBJECTS; i++) {
common = &ch->common[i];
- /* skip If streaming is not started in this channel */
- if (0 == common->started)
- continue;

/* Check the field format */
if (1 == ch->vpifparams.std_info.frm_fmt) {
@@ -617,21 +530,15 @@ static void vpif_calculate_offsets(struct channel_obj *ch)

vpif_dbg(2, debug, "vpif_calculate_offsets\n");

- if (V4L2_FIELD_ANY == field) {
- if (vpifparams->std_info.frm_fmt)
- vid_ch->buf_field = V4L2_FIELD_NONE;
- else
- vid_ch->buf_field = V4L2_FIELD_INTERLACED;
- } else
- vid_ch->buf_field = common->fmt.fmt.pix.field;
+ vid_ch->buf_field = common->fmt.fmt.pix.field;

sizeimage = common->fmt.fmt.pix.sizeimage;

hpitch = common->fmt.fmt.pix.bytesperline;
vpitch = sizeimage / (hpitch * 2);

- if ((V4L2_FIELD_NONE == vid_ch->buf_field) ||
- (V4L2_FIELD_INTERLACED == vid_ch->buf_field)) {
+ if (V4L2_FIELD_NONE == vid_ch->buf_field ||
+ V4L2_FIELD_INTERLACED == vid_ch->buf_field) {
/* Calculate offsets for Y top, Y Bottom, C top and C Bottom */
common->ytop_off = 0;
common->ybtm_off = hpitch;
@@ -650,599 +557,76 @@ static void vpif_calculate_offsets(struct channel_obj *ch)
common->cbtm_off = sizeimage / 2;
common->ctop_off = common->cbtm_off + sizeimage / 4;
}
- if ((V4L2_FIELD_NONE == vid_ch->buf_field) ||
- (V4L2_FIELD_INTERLACED == vid_ch->buf_field))
+ if (V4L2_FIELD_NONE == vid_ch->buf_field ||
+ V4L2_FIELD_INTERLACED == vid_ch->buf_field)
vpifparams->video_params.storage_mode = 1;
else
vpifparams->video_params.storage_mode = 0;
-
- if (1 == vpifparams->std_info.frm_fmt)
- vpifparams->video_params.hpitch =
- common->fmt.fmt.pix.bytesperline;
- else {
- if ((field == V4L2_FIELD_ANY)
- || (field == V4L2_FIELD_INTERLACED))
- vpifparams->video_params.hpitch =
- common->fmt.fmt.pix.bytesperline * 2;
- else
- vpifparams->video_params.hpitch =
- common->fmt.fmt.pix.bytesperline;
- }
-
- ch->vpifparams.video_params.stdid = vpifparams->std_info.stdid;
-}
-
-/**
- * vpif_config_format: configure default frame format in the device
- * ch : ptr to channel object
- */
-static void vpif_config_format(struct channel_obj *ch)
-{
- struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
-
- vpif_dbg(2, debug, "vpif_config_format\n");
-
- 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];
-
- if (ch->vpifparams.iface.if_type == VPIF_IF_RAW_BAYER)
- common->fmt.fmt.pix.pixelformat = V4L2_PIX_FMT_SBGGR8;
- else
- common->fmt.fmt.pix.pixelformat = V4L2_PIX_FMT_YUV422P;
- common->fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
-}
-
-/**
- * vpif_get_default_field() - Get default field type based on interface
- * @vpif_params - ptr to vpif params
- */
-static inline enum v4l2_field vpif_get_default_field(
- struct vpif_interface *iface)
-{
- return (iface->if_type == VPIF_IF_RAW_BAYER) ? V4L2_FIELD_NONE :
- V4L2_FIELD_INTERLACED;
-}
-
-/**
- * vpif_check_format() - check given pixel format for compatibility
- * @ch - channel ptr
- * @pixfmt - Given pixel format
- * @update - update the values as per hardware requirement
- *
- * Check the application pixel format for S_FMT and update the input
- * values as per hardware limits for TRY_FMT. The default pixel and
- * field format is selected based on interface type.
- */
-static int vpif_check_format(struct channel_obj *ch,
- struct v4l2_pix_format *pixfmt,
- int update)
-{
- struct common_obj *common = &(ch->common[VPIF_VIDEO_INDEX]);
- struct vpif_params *vpif_params = &ch->vpifparams;
- enum v4l2_field field = pixfmt->field;
- u32 sizeimage, hpitch, vpitch;
- int ret = -EINVAL;
-
- vpif_dbg(2, debug, "vpif_check_format\n");
- /**
- * first check for the pixel format. If if_type is Raw bayer,
- * only V4L2_PIX_FMT_SBGGR8 format is supported. Otherwise only
- * V4L2_PIX_FMT_YUV422P is supported
- */
- if (vpif_params->iface.if_type == VPIF_IF_RAW_BAYER) {
- if (pixfmt->pixelformat != V4L2_PIX_FMT_SBGGR8) {
- if (!update) {
- vpif_dbg(2, debug, "invalid pix format\n");
- goto exit;
- }
- pixfmt->pixelformat = V4L2_PIX_FMT_SBGGR8;
- }
- } else {
- if (pixfmt->pixelformat != V4L2_PIX_FMT_YUV422P) {
- if (!update) {
- vpif_dbg(2, debug, "invalid pixel format\n");
- goto exit;
- }
- pixfmt->pixelformat = V4L2_PIX_FMT_YUV422P;
- }
- }
-
- if (!(VPIF_VALID_FIELD(field))) {
- if (!update) {
- vpif_dbg(2, debug, "invalid field format\n");
- goto exit;
- }
- /**
- * By default use FIELD_NONE for RAW Bayer capture
- * and FIELD_INTERLACED for other interfaces
- */
- field = vpif_get_default_field(&vpif_params->iface);
- } else if (field == V4L2_FIELD_ANY)
- /* unsupported field. Use default */
- field = vpif_get_default_field(&vpif_params->iface);
-
- /* validate the hpitch */
- hpitch = pixfmt->bytesperline;
- if (hpitch < vpif_params->std_info.width) {
- if (!update) {
- vpif_dbg(2, debug, "invalid hpitch\n");
- goto exit;
- }
- hpitch = vpif_params->std_info.width;
- }
-
- sizeimage = pixfmt->sizeimage;
-
- vpitch = sizeimage / (hpitch * 2);
-
- /* validate the vpitch */
- if (vpitch < vpif_params->std_info.height) {
- if (!update) {
- vpif_dbg(2, debug, "Invalid vpitch\n");
- goto exit;
- }
- vpitch = vpif_params->std_info.height;
- }
-
- /* Check for 8 byte alignment */
- if (!ALIGN(hpitch, 8)) {
- if (!update) {
- vpif_dbg(2, debug, "invalid pitch alignment\n");
- goto exit;
- }
- /* adjust to next 8 byte boundary */
- hpitch = (((hpitch + 7) / 8) * 8);
- }
- /* if update is set, modify the bytesperline and sizeimage */
- if (update) {
- pixfmt->bytesperline = hpitch;
- pixfmt->sizeimage = hpitch * vpitch * 2;
- }
- /**
- * Image width and height is always based on current standard width and
- * height
- */
- pixfmt->width = common->fmt.fmt.pix.width;
- pixfmt->height = common->fmt.fmt.pix.height;
- return 0;
-exit:
- return ret;
-}
-
-/**
- * vpif_config_addr() - function to configure buffer address in vpif
- * @ch - channel ptr
- * @muxmode - channel mux mode
- */
-static void vpif_config_addr(struct channel_obj *ch, int muxmode)
-{
- struct common_obj *common;
-
- vpif_dbg(2, debug, "vpif_config_addr\n");
-
- common = &(ch->common[VPIF_VIDEO_INDEX]);
-
- if (VPIF_CHANNEL1_VIDEO == ch->channel_id)
- common->set_addr = ch1_set_videobuf_addr;
- else if (2 == muxmode)
- common->set_addr = ch0_set_videobuf_addr_yc_nmux;
- else
- common->set_addr = ch0_set_videobuf_addr;
-}
-
-/**
- * vpif_mmap : It is used to map kernel space buffers into user spaces
- * @filep: file pointer
- * @vma: ptr to vm_area_struct
- */
-static int vpif_mmap(struct file *filep, struct vm_area_struct *vma)
-{
- /* Get the channel object and file handle object */
- 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
- * @filep: file pointer
- * @wait: poll table to wait
- */
-static unsigned int vpif_poll(struct file *filep, poll_table * wait)
-{
- struct vpif_fh *fh = filep->private_data;
- struct channel_obj *channel = fh->channel;
- struct common_obj *common = &(channel->common[VPIF_VIDEO_INDEX]);
- unsigned int res = 0;
-
- vpif_dbg(2, debug, "vpif_poll\n");
-
- if (common->started) {
- mutex_lock(&common->lock);
- res = vb2_poll(&common->buffer_queue, filep, wait);
- mutex_unlock(&common->lock);
- }
- return res;
-}
-
-/**
- * vpif_open : vpif open handler
- * @filep: file ptr
- *
- * 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 common_obj *common;
- struct video_obj *vid_ch;
- struct channel_obj *ch;
- struct vpif_fh *fh;
-
- vpif_dbg(2, debug, "vpif_open\n");
-
- ch = video_get_drvdata(vdev);
-
- vid_ch = &ch->video;
- common = &ch->common[VPIF_VIDEO_INDEX];
-
- /* Allocate memory for the file handle object */
- fh = kzalloc(sizeof(struct vpif_fh), GFP_KERNEL);
- if (NULL == fh) {
- 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 decoder is not initialized. initialize it */
- if (!ch->initialized) {
- fh->initialized = 1;
- ch->initialized = 1;
- memset(&(ch->vpifparams), 0, sizeof(struct vpif_params));
- }
- /* Increment channel usrs counter */
- ch->usrs++;
- /* Set io_allowed 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 : function to clean up file close
- * @filep: file pointer
- *
- * 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;
-
- vpif_dbg(2, debug, "vpif_release\n");
-
- 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);
- }
-
- /* Decrement channel usrs counter */
- ch->usrs--;
-
- /* Close the priority */
- v4l2_prio_close(&ch->prio, fh->prio);
-
- if (fh->initialized)
- ch->initialized = 0;
-
- mutex_unlock(&common->lock);
- filep->private_data = NULL;
- kfree(fh);
- return 0;
-}
-
-/**
- * vpif_reqbufs() - request buffer handler
- * @file: file ptr
- * @priv: file handle
- * @reqbuf: request buffer structure ptr
- */
-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;
- u8 index = 0;
- struct vb2_queue *q;
- int ret;
-
- vpif_dbg(2, debug, "vpif_reqbufs\n");
-
- /**
- * This file handle has not initialized the channel,
- * It is not allowed to do settings
- */
- if ((VPIF_CHANNEL0_VIDEO == ch->channel_id)
- || (VPIF_CHANNEL1_VIDEO == ch->channel_id)) {
- if (!fh->initialized) {
- vpif_dbg(1, debug, "Channel Busy\n");
- return -EBUSY;
- }
- }
-
- if (V4L2_BUF_TYPE_VIDEO_CAPTURE != reqbuf->type || !vpif_dev)
- return -EINVAL;
-
- index = VPIF_VIDEO_INDEX;
-
- common = &ch->common[index];
-
- if (0 != common->io_usrs)
- return -EBUSY;
-
- /* 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_CAPTURE;
- 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_cap_buffer);
- q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
- q->min_buffers_needed = 1;
-
- ret = vb2_queue_init(q);
- if (ret) {
- vpif_err("vpif_capture: 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);
-}
-
-/**
- * vpif_querybuf() - query buffer handler
- * @file: file ptr
- * @priv: file handle
- * @buf: v4l2 buffer structure ptr
- */
-static int vpif_querybuf(struct file *file, void *priv,
- struct v4l2_buffer *buf)
-{
- struct vpif_fh *fh = priv;
- struct channel_obj *ch = fh->channel;
- struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
-
- vpif_dbg(2, debug, "vpif_querybuf\n");
-
- if (common->fmt.type != buf->type)
- return -EINVAL;
-
- if (common->memory != V4L2_MEMORY_MMAP) {
- vpif_dbg(1, debug, "Invalid memory\n");
- return -EINVAL;
- }
-
- return vb2_querybuf(&common->buffer_queue, buf);
-}
-
-/**
- * vpif_qbuf() - query buffer handler
- * @file: file ptr
- * @priv: file handle
- * @buf: v4l2 buffer structure ptr
- */
-static int vpif_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
-{
-
- struct vpif_fh *fh = priv;
- struct channel_obj *ch = fh->channel;
- struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
- struct v4l2_buffer tbuf = *buf;
-
- vpif_dbg(2, debug, "vpif_qbuf\n");
-
- if (common->fmt.type != tbuf.type) {
- vpif_err("invalid buffer type\n");
- return -EINVAL;
- }
-
- if (!fh->io_allowed[VPIF_VIDEO_INDEX]) {
- vpif_err("fh io not allowed\n");
- return -EACCES;
- }
-
- return vb2_qbuf(&common->buffer_queue, buf);
-}
-
-/**
- * vpif_dqbuf() - query buffer handler
- * @file: file ptr
- * @priv: file handle
- * @buf: v4l2 buffer structure ptr
- */
-static int vpif_dqbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
-{
- struct vpif_fh *fh = priv;
- struct channel_obj *ch = fh->channel;
- struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
-
- vpif_dbg(2, debug, "vpif_dqbuf\n");
-
- return vb2_dqbuf(&common->buffer_queue, buf,
- (file->f_flags & O_NONBLOCK));
-}
-
-/**
- * vpif_streamon() - streamon handler
- * @file: file ptr
- * @priv: file handle
- * @buftype: v4l2 buffer type
- */
-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];
- struct vpif_params *vpif;
- int ret = 0;
-
- vpif_dbg(2, debug, "vpif_streamon\n");
-
- vpif = &ch->vpifparams;
-
- if (buftype != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
- vpif_dbg(1, debug, "buffer type not supported\n");
- return -EINVAL;
- }
-
- /* If file handle is not allowed IO, return error */
- if (!fh->io_allowed[VPIF_VIDEO_INDEX]) {
- vpif_dbg(1, debug, "io not allowed\n");
- return -EACCES;
- }
-
- /* If Streaming is already started, return error */
- if (common->started) {
- vpif_dbg(1, debug, "channel->started\n");
- return -EBUSY;
- }
-
- if ((ch->channel_id == VPIF_CHANNEL0_VIDEO &&
- oth_ch->common[VPIF_VIDEO_INDEX].started &&
- vpif->std_info.ycmux_mode == 0) ||
- ((ch->channel_id == VPIF_CHANNEL1_VIDEO) &&
- (2 == oth_ch->common[VPIF_VIDEO_INDEX].started))) {
- vpif_dbg(1, debug, "other channel is being used\n");
- return -EBUSY;
- }
-
- ret = vpif_check_format(ch, &common->fmt.fmt.pix, 0);
- if (ret)
- return ret;
-
- /* Enable streamon on the sub device */
- ret = v4l2_subdev_call(ch->sd, video, s_stream, 1);
-
- if (ret && ret != -ENOIOCTLCMD && ret != -ENODEV) {
- vpif_dbg(1, debug, "stream on failed in subdev\n");
- return ret;
- }
-
- /* Call vb2_streamon to start streaming in videobuf2 */
- ret = vb2_streamon(&common->buffer_queue, buftype);
- if (ret) {
- vpif_dbg(1, debug, "vb2_streamon\n");
- return ret;
+
+ if (vpifparams->std_info.frm_fmt == 1)
+ vpifparams->video_params.hpitch =
+ common->fmt.fmt.pix.bytesperline;
+ else {
+ if (field == V4L2_FIELD_ANY ||
+ field == V4L2_FIELD_INTERLACED)
+ vpifparams->video_params.hpitch =
+ common->fmt.fmt.pix.bytesperline * 2;
+ else
+ vpifparams->video_params.hpitch =
+ common->fmt.fmt.pix.bytesperline;
}

- return ret;
+ ch->vpifparams.video_params.stdid = vpifparams->std_info.stdid;
}

/**
- * vpif_streamoff() - streamoff handler
- * @file: file ptr
- * @priv: file handle
- * @buftype: v4l2 buffer type
+ * vpif_config_format: configure default frame format in the device
+ * ch : ptr to channel object
*/
-static int vpif_streamoff(struct file *file, void *priv,
- enum v4l2_buf_type buftype)
+static void vpif_config_format(struct channel_obj *ch)
{
-
- struct vpif_fh *fh = priv;
- struct channel_obj *ch = fh->channel;
struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
- int ret;

- vpif_dbg(2, debug, "vpif_streamoff\n");
-
- if (buftype != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
- vpif_dbg(1, debug, "buffer type not supported\n");
- return -EINVAL;
- }
+ vpif_dbg(2, debug, "vpif_config_format\n");

- /* If io is allowed for this file handle, return error */
- if (!fh->io_allowed[VPIF_VIDEO_INDEX]) {
- vpif_dbg(1, debug, "io not allowed\n");
- return -EACCES;
- }
+ if (ch->vpifparams.iface.if_type == VPIF_IF_RAW_BAYER)
+ common->fmt.fmt.pix.pixelformat = V4L2_PIX_FMT_SBGGR8;
+ else
+ common->fmt.fmt.pix.pixelformat = V4L2_PIX_FMT_YUV422P;

- /* If streaming is not started, return error */
- if (!common->started) {
- vpif_dbg(1, debug, "channel->started\n");
- return -EINVAL;
- }
+ common->fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+}

- /* disable channel */
- if (VPIF_CHANNEL0_VIDEO == ch->channel_id) {
- enable_channel0(0);
- channel0_intr_enable(0);
- } else {
- enable_channel1(0);
- channel1_intr_enable(0);
- }
+/**
+ * vpif_get_default_field() - Get default field type based on interface
+ * @vpif_params - ptr to vpif params
+ */
+static inline enum v4l2_field vpif_get_default_field(
+ struct vpif_interface *iface)
+{
+ return (iface->if_type == VPIF_IF_RAW_BAYER) ? V4L2_FIELD_NONE :
+ V4L2_FIELD_INTERLACED;
+}

- common->started = 0;
+/**
+ * vpif_config_addr() - function to configure buffer address in vpif
+ * @ch - channel ptr
+ * @muxmode - channel mux mode
+ */
+static void vpif_config_addr(struct channel_obj *ch, int muxmode)
+{
+ struct common_obj *common;

- ret = v4l2_subdev_call(ch->sd, video, s_stream, 0);
+ vpif_dbg(2, debug, "vpif_config_addr\n");

- if (ret && ret != -ENOIOCTLCMD && ret != -ENODEV)
- vpif_dbg(1, debug, "stream off failed in subdev\n");
+ common = &(ch->common[VPIF_VIDEO_INDEX]);

- return vb2_streamoff(&common->buffer_queue, buftype);
+ if (VPIF_CHANNEL1_VIDEO == ch->channel_id)
+ common->set_addr = ch1_set_videobuf_addr;
+ else if (2 == muxmode)
+ common->set_addr = ch0_set_videobuf_addr_yc_nmux;
+ else
+ common->set_addr = ch0_set_videobuf_addr;
}

/**
@@ -1348,9 +732,9 @@ static int vpif_set_input(
*/
static int vpif_querystd(struct file *file, void *priv, v4l2_std_id *std_id)
{
- struct vpif_fh *fh = priv;
- struct channel_obj *ch = fh->channel;
- int ret = 0;
+ struct video_device *vdev = video_devdata(file);
+ struct channel_obj *ch = video_get_drvdata(vdev);
+ int ret;

vpif_dbg(2, debug, "vpif_querystd\n");

@@ -1375,11 +759,22 @@ static int vpif_querystd(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 vpif_capture_config *config = vpif_dev->platform_data;
+ struct video_device *vdev = video_devdata(file);
+ struct channel_obj *ch = video_get_drvdata(vdev);
+ struct vpif_capture_chan_config *chan_cfg;
+ struct v4l2_input input;

vpif_dbg(2, debug, "vpif_g_std\n");

+ if (config->chan_config[ch->channel_id].inputs == NULL)
+ return -ENODATA;
+
+ chan_cfg = &config->chan_config[ch->channel_id];
+ input = chan_cfg->inputs[ch->input_idx].input;
+ if (input.capabilities != V4L2_IN_CAP_STD)
+ return -ENODATA;
+
*std = ch->video.stdid;
return 0;
}
@@ -1392,31 +787,26 @@ static int vpif_g_std(struct file *file, void *priv, v4l2_std_id *std)
*/
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 vpif_capture_config *config = vpif_dev->platform_data;
+ 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;
+ struct vpif_capture_chan_config *chan_cfg;
+ struct v4l2_input input;
+ int ret;

vpif_dbg(2, debug, "vpif_s_std\n");

- if (common->started) {
- vpif_err("streaming in progress\n");
- return -EBUSY;
- }
-
- if ((VPIF_CHANNEL0_VIDEO == ch->channel_id) ||
- (VPIF_CHANNEL1_VIDEO == ch->channel_id)) {
- if (!fh->initialized) {
- vpif_dbg(1, debug, "Channel Busy\n");
- return -EBUSY;
- }
- }
+ if (config->chan_config[ch->channel_id].inputs == NULL)
+ return -ENODATA;

- ret = v4l2_prio_check(&ch->prio, fh->prio);
- if (0 != ret)
- return ret;
+ chan_cfg = &config->chan_config[ch->channel_id];
+ input = chan_cfg->inputs[ch->input_idx].input;
+ if (input.capabilities != V4L2_IN_CAP_STD)
+ return -ENODATA;

- fh->initialized = 1;
+ if (vb2_is_busy(&common->buffer_queue))
+ return -EBUSY;

/* Call encoder subdevice function to set the standard */
ch->video.stdid = std_id;
@@ -1452,8 +842,11 @@ static int vpif_enum_input(struct file *file, void *priv,

struct vpif_capture_config *config = vpif_dev->platform_data;
struct vpif_capture_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);
+
+ if (config->chan_config[ch->channel_id].inputs == NULL)
+ return -ENODATA;

chan_cfg = &config->chan_config[ch->channel_id];

@@ -1475,8 +868,8 @@ static int vpif_enum_input(struct file *file, void *priv,
*/
static int vpif_g_input(struct file *file, void *priv, unsigned int *index)
{
- 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);

*index = ch->input_idx;
return 0;
@@ -1492,34 +885,18 @@ static int vpif_s_input(struct file *file, void *priv, unsigned int index)
{
struct vpif_capture_config *config = vpif_dev->platform_data;
struct vpif_capture_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];
- int ret;
+
+ if (vb2_is_busy(&common->buffer_queue))
+ return -EBUSY;

chan_cfg = &config->chan_config[ch->channel_id];

if (index >= chan_cfg->input_count)
return -EINVAL;

- if (common->started) {
- vpif_err("Streaming in progress\n");
- return -EBUSY;
- }
-
- if ((VPIF_CHANNEL0_VIDEO == ch->channel_id) ||
- (VPIF_CHANNEL1_VIDEO == ch->channel_id)) {
- if (!fh->initialized) {
- vpif_dbg(1, debug, "Channel Busy\n");
- return -EBUSY;
- }
- }
-
- ret = v4l2_prio_check(&ch->prio, fh->prio);
- if (0 != ret)
- return ret;
-
- fh->initialized = 1;
return vpif_set_input(config, ch, index);
}

@@ -1532,8 +909,8 @@ static int vpif_s_input(struct file *file, void *priv, unsigned int index)
static int vpif_enum_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_fmtdesc *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);

if (fmt->index != 0) {
vpif_dbg(1, debug, "Invalid format index\n");
@@ -1553,6 +930,52 @@ static int vpif_enum_fmt_vid_cap(struct file *file, void *priv,
return 0;
}

+static void vpif_fill_pix_format(struct video_device *vdev,
+ struct v4l2_pix_format *pixfmt)
+{
+ struct channel_obj *ch = video_get_drvdata(vdev);
+ struct vpif_params *vpif_params = &ch->vpifparams;
+ struct common_obj *common = &(ch->common[VPIF_VIDEO_INDEX]);
+ u32 sizeimage, hpitch, vpitch;
+
+ /* validate the hpitch */
+ hpitch = pixfmt->bytesperline;
+ if (hpitch < vpif_params->std_info.width)
+ hpitch = vpif_params->std_info.width;
+
+ if (ch->video.stdid)
+ pixfmt->colorspace = V4L2_COLORSPACE_SMPTE170M;
+ else
+ pixfmt->colorspace = V4L2_COLORSPACE_REC709;
+
+ sizeimage = pixfmt->sizeimage;
+
+ vpitch = sizeimage / (hpitch * 2);
+
+ /* validate the vpitch */
+ if (vpitch < vpif_params->std_info.height)
+ vpitch = vpif_params->std_info.height;
+
+ /* Check for 8 byte alignment */
+ if (!ALIGN(hpitch, 8))
+ /* adjust to next 8 byte boundary */
+ hpitch = (((hpitch + 7) / 8) * 8);
+
+ /* if update is set, modify the bytesperline and sizeimage */
+ pixfmt->bytesperline = hpitch;
+ pixfmt->sizeimage = hpitch * vpitch * 2;
+
+ pixfmt->width = common->fmt.fmt.pix.width;
+ pixfmt->height = common->fmt.fmt.pix.height;
+
+ if (pixfmt->field == V4L2_FIELD_ANY) {
+ if (vpif_params->std_info.frm_fmt)
+ common->fmt.fmt.pix.field = V4L2_FIELD_NONE;
+ else
+ common->fmt.fmt.pix.field = V4L2_FIELD_INTERLACED;
+ }
+}
+
/**
* vpif_try_fmt_vid_cap() - TRY_FMT handler
* @file: file ptr
@@ -1562,11 +985,26 @@ static int vpif_enum_fmt_vid_cap(struct file *file, void *priv,
static int vpif_try_fmt_vid_cap(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 v4l2_pix_format *pixfmt = &fmt->fmt.pix;
+ struct vpif_params *vpif_params = &ch->vpifparams;
+
+ vpif_dbg(2, debug, "vpif_try_fmt_vid_cap\n");
+ /**
+ * first check for the pixel format. If if_type is Raw bayer,
+ * only V4L2_PIX_FMT_SBGGR8 format is supported. Otherwise only
+ * V4L2_PIX_FMT_YUV422P is supported
+ */
+ if (vpif_params->iface.if_type == VPIF_IF_RAW_BAYER &&
+ pixfmt->pixelformat != V4L2_PIX_FMT_SBGGR8)
+ return -EINVAL;
+ else if (pixfmt->pixelformat != V4L2_PIX_FMT_YUV422P)
+ return -EINVAL;
+
+ vpif_fill_pix_format(vdev, pixfmt);

- return vpif_check_format(ch, pixfmt, 1);
+ return 0;
}


@@ -1579,8 +1017,8 @@ static int vpif_try_fmt_vid_cap(struct file *file, void *priv,
static int vpif_g_fmt_vid_cap(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 */
@@ -1601,40 +1039,24 @@ static int vpif_g_fmt_vid_cap(struct file *file, void *priv,
static int vpif_s_fmt_vid_cap(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;
int ret = 0;

vpif_dbg(2, debug, "%s\n", __func__);

/* If streaming is started, return error */
- if (common->started) {
+ if (vb2_is_busy(&common->buffer_queue)) {
vpif_dbg(1, debug, "Streaming is started\n");
return -EBUSY;
}

- if ((VPIF_CHANNEL0_VIDEO == ch->channel_id) ||
- (VPIF_CHANNEL1_VIDEO == ch->channel_id)) {
- if (!fh->initialized) {
- vpif_dbg(1, debug, "Channel Busy\n");
- return -EBUSY;
- }
- }
-
- ret = v4l2_prio_check(&ch->prio, fh->prio);
- if (0 != ret)
- return ret;
-
- fh->initialized = 1;
-
- pixfmt = &fmt->fmt.pix;
/* Check for valid field format */
- ret = vpif_check_format(ch, pixfmt, 0);
-
+ ret = vpif_try_fmt_vid_cap(file, priv, fmt);
if (ret)
return ret;
+
/* store the format in the channel object */
common->fmt = *fmt;
return 0;
@@ -1653,7 +1075,7 @@ static int vpif_querycap(struct file *file, void *priv,

cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | 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));
@@ -1662,61 +1084,6 @@ static int vpif_querycap(struct file *file, void *priv,
}

/**
- * vpif_g_priority() - get priority handler
- * @file: file ptr
- * @priv: file handle
- * @prio: ptr to v4l2_priority structure
- */
-static int vpif_g_priority(struct file *file, void *priv,
- enum v4l2_priority *prio)
-{
- struct vpif_fh *fh = priv;
- struct channel_obj *ch = fh->channel;
-
- *prio = v4l2_prio_max(&ch->prio);
-
- return 0;
-}
-
-/**
- * vpif_s_priority() - set priority handler
- * @file: file ptr
- * @priv: file handle
- * @prio: ptr to v4l2_priority structure
- */
-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_cropcap() - cropcap handler
- * @file: file ptr
- * @priv: file handle
- * @crop: ptr to v4l2_cropcap structure
- */
-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 common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
-
- if (V4L2_BUF_TYPE_VIDEO_CAPTURE != crop->type)
- return -EINVAL;
-
- crop->bounds.left = 0;
- crop->bounds.top = 0;
- crop->bounds.height = common->height;
- crop->bounds.width = common->width;
- crop->defrect = crop->bounds;
- return 0;
-}
-
-/**
* vpif_enum_dv_timings() - ENUM_DV_TIMINGS handler
* @file: file ptr
* @priv: file handle
@@ -1726,13 +1093,25 @@ 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 vpif_capture_config *config = vpif_dev->platform_data;
+ struct video_device *vdev = video_devdata(file);
+ struct channel_obj *ch = video_get_drvdata(vdev);
+ struct vpif_capture_chan_config *chan_cfg;
+ struct v4l2_input input;
int ret;

+ if (config->chan_config[ch->channel_id].inputs == NULL)
+ return -ENODATA;
+
+ chan_cfg = &config->chan_config[ch->channel_id];
+ input = chan_cfg->inputs[ch->input_idx].input;
+ if (input.capabilities != V4L2_IN_CAP_DV_TIMINGS)
+ return -ENODATA;
+
ret = v4l2_subdev_call(ch->sd, video, enum_dv_timings, timings);
if (ret == -ENOIOCTLCMD || ret == -ENODEV)
return -EINVAL;
+
return ret;
}

@@ -1746,10 +1125,21 @@ static int
vpif_query_dv_timings(struct file *file, void *priv,
struct v4l2_dv_timings *timings)
{
- struct vpif_fh *fh = priv;
- struct channel_obj *ch = fh->channel;
+ struct vpif_capture_config *config = vpif_dev->platform_data;
+ struct video_device *vdev = video_devdata(file);
+ struct channel_obj *ch = video_get_drvdata(vdev);
+ struct vpif_capture_chan_config *chan_cfg;
+ struct v4l2_input input;
int ret;

+ if (config->chan_config[ch->channel_id].inputs == NULL)
+ return -ENODATA;
+
+ chan_cfg = &config->chan_config[ch->channel_id];
+ input = chan_cfg->inputs[ch->input_idx].input;
+ if (input.capabilities != V4L2_IN_CAP_DV_TIMINGS)
+ return -ENODATA;
+
ret = v4l2_subdev_call(ch->sd, video, query_dv_timings, timings);
if (ret == -ENOIOCTLCMD || ret == -ENODEV)
return -ENODATA;
@@ -1765,14 +1155,29 @@ vpif_query_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 vpif_capture_config *config = vpif_dev->platform_data;
+ struct video_device *vdev = video_devdata(file);
+ struct channel_obj *ch = video_get_drvdata(vdev);
struct vpif_params *vpifparams = &ch->vpifparams;
struct vpif_channel_config_params *std_info = &vpifparams->std_info;
+ struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
struct video_obj *vid_ch = &ch->video;
struct v4l2_bt_timings *bt = &vid_ch->dv_timings.bt;
+ struct vpif_capture_chan_config *chan_cfg;
+ struct v4l2_input input;
int ret;

+ if (config->chan_config[ch->channel_id].inputs == NULL)
+ return -ENODATA;
+
+ chan_cfg = &config->chan_config[ch->channel_id];
+ input = chan_cfg->inputs[ch->input_idx].input;
+ if (input.capabilities != V4L2_IN_CAP_DV_TIMINGS)
+ return -ENODATA;
+
+ if (vb2_is_busy(&common->buffer_queue))
+ return -EBUSY;
+
if (timings->type != V4L2_DV_BT_656_1120) {
vpif_dbg(2, debug, "Timing type not defined\n");
return -EINVAL;
@@ -1853,9 +1258,20 @@ 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 vpif_capture_config *config = vpif_dev->platform_data;
+ struct video_device *vdev = video_devdata(file);
+ struct channel_obj *ch = video_get_drvdata(vdev);
struct video_obj *vid_ch = &ch->video;
+ struct vpif_capture_chan_config *chan_cfg;
+ struct v4l2_input input;
+
+ if (config->chan_config[ch->channel_id].inputs == NULL)
+ return -ENODATA;
+
+ chan_cfg = &config->chan_config[ch->channel_id];
+ input = chan_cfg->inputs[ch->input_idx].input;
+ if (input.capabilities != V4L2_IN_CAP_DV_TIMINGS)
+ return -ENODATA;

*timings = vid_ch->dv_timings;

@@ -1879,49 +1295,45 @@ static int vpif_log_status(struct file *filep, void *priv)

/* vpif capture 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_cap = vpif_enum_fmt_vid_cap,
- .vidioc_g_fmt_vid_cap = vpif_g_fmt_vid_cap,
+ .vidioc_g_fmt_vid_cap = vpif_g_fmt_vid_cap,
.vidioc_s_fmt_vid_cap = vpif_s_fmt_vid_cap,
.vidioc_try_fmt_vid_cap = vpif_try_fmt_vid_cap,
+
.vidioc_enum_input = vpif_enum_input,
.vidioc_s_input = vpif_s_input,
.vidioc_g_input = vpif_g_input,
- .vidioc_reqbufs = vpif_reqbufs,
- .vidioc_querybuf = vpif_querybuf,
+
+ .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_expbuf = vb2_ioctl_expbuf,
+ .vidioc_streamon = vb2_ioctl_streamon,
+ .vidioc_streamoff = vb2_ioctl_streamoff,
+
.vidioc_querystd = vpif_querystd,
- .vidioc_s_std = vpif_s_std,
+ .vidioc_s_std = vpif_s_std,
.vidioc_g_std = vpif_g_std,
- .vidioc_qbuf = vpif_qbuf,
- .vidioc_dqbuf = vpif_dqbuf,
- .vidioc_streamon = vpif_streamon,
- .vidioc_streamoff = vpif_streamoff,
- .vidioc_cropcap = vpif_cropcap,
- .vidioc_enum_dv_timings = vpif_enum_dv_timings,
- .vidioc_query_dv_timings = vpif_query_dv_timings,
- .vidioc_s_dv_timings = vpif_s_dv_timings,
- .vidioc_g_dv_timings = vpif_g_dv_timings,
+
+ .vidioc_enum_dv_timings = vpif_enum_dv_timings,
+ .vidioc_query_dv_timings = vpif_query_dv_timings,
+ .vidioc_s_dv_timings = vpif_s_dv_timings,
+ .vidioc_g_dv_timings = vpif_g_dv_timings,
+
.vidioc_log_status = vpif_log_status,
};

/* vpif file operations */
static struct v4l2_file_operations vpif_fops = {
- .owner = THIS_MODULE,
- .open = vpif_open,
- .release = vpif_release,
- .unlocked_ioctl = video_ioctl2,
- .mmap = vpif_mmap,
- .poll = vpif_poll
-};
-
-/* vpif video template */
-static struct video_device vpif_video_template = {
- .name = "vpif",
- .fops = &vpif_fops,
- .minor = -1,
- .ioctl_ops = &vpif_ioctl_ops,
+ .owner = THIS_MODULE,
+ .open = v4l2_fh_open,
+ .release = vb2_fop_release,
+ .unlocked_ioctl = video_ioctl2,
+ .mmap = vb2_fop_mmap,
+ .poll = vb2_fop_poll
};

/**
@@ -1931,36 +1343,9 @@ static struct video_device vpif_video_template = {
*/
static int initialize_vpif(void)
{
- int err = 0, i, j;
+ int err, i, j;
int free_channel_objects_index;

- /* Default number of buffers should be 3 */
- if ((ch0_numbuffers > 0) &&
- (ch0_numbuffers < config_params.min_numbuffers))
- ch0_numbuffers = config_params.min_numbuffers;
- if ((ch1_numbuffers > 0) &&
- (ch1_numbuffers < config_params.min_numbuffers))
- ch1_numbuffers = config_params.min_numbuffers;
-
- /* Set buffer size to min buffers size if it is invalid */
- if (ch0_bufsize < config_params.min_bufsize[VPIF_CHANNEL0_VIDEO])
- ch0_bufsize =
- config_params.min_bufsize[VPIF_CHANNEL0_VIDEO];
- if (ch1_bufsize < config_params.min_bufsize[VPIF_CHANNEL1_VIDEO])
- ch1_bufsize =
- config_params.min_bufsize[VPIF_CHANNEL1_VIDEO];
-
- config_params.numbuffers[VPIF_CHANNEL0_VIDEO] = ch0_numbuffers;
- config_params.numbuffers[VPIF_CHANNEL1_VIDEO] = ch1_numbuffers;
- if (ch0_numbuffers) {
- config_params.channel_bufsize[VPIF_CHANNEL0_VIDEO]
- = ch0_bufsize;
- }
- if (ch1_numbuffers) {
- config_params.channel_bufsize[VPIF_CHANNEL1_VIDEO]
- = ch1_bufsize;
- }
-
/* Allocate memory for six channel objects */
for (i = 0; i < VPIF_CAPTURE_MAX_DEVICES; i++) {
vpif_obj.dev[i] =
@@ -1999,7 +1384,9 @@ 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 i, j, err, k;

for (j = 0; j < VPIF_CAPTURE_MAX_DEVICES; j++) {
@@ -2009,16 +1396,54 @@ static int vpif_probe_complete(void)
spin_lock_init(&common->irqlock);
mutex_init(&common->lock);
ch->video_dev->lock = &common->lock;
- /* Initialize prio member of channel object */
- v4l2_prio_init(&ch->prio);
- video_set_drvdata(ch->video_dev, ch);

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

- err = video_register_device(ch->video_dev,
+ /* Initialize vb2 queue */
+ q = &common->buffer_queue;
+ q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+ q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
+ q->drv_priv = ch;
+ q->ops = &video_qops;
+ q->mem_ops = &vb2_dma_contig_memops;
+ q->buf_struct_size = sizeof(struct vpif_cap_buffer);
+ q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
+ q->min_buffers_needed = 1;
+ q->lock = &common->lock;
+
+ 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_RX;
+ set_bit(V4L2_FL_USE_FH_PRIO, &vdev->flags);
+ video_set_drvdata(vdev, ch);
+
+ err = video_register_device(vdev,
VFL_TYPE_GRABBER, (j ? 1 : 0));
if (err)
goto probe_out;
@@ -2031,6 +1456,8 @@ probe_out:
for (k = 0; k < j; k++) {
/* Get the pointer to the channel object */
ch = vpif_obj.dev[k];
+ common = &ch->common[k];
+ vb2_dma_contig_cleanup_ctx(common->alloc_ctx);
/* Unregister video device */
video_unregister_device(ch->video_dev);
}
@@ -2067,7 +1494,6 @@ static __init int vpif_probe(struct platform_device *pdev)
struct video_device *vfd;
struct resource *res;
int subdev_count;
- size_t size;

vpif_dev = &pdev->dev;

@@ -2085,7 +1511,7 @@ 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_Capture",
+ IRQF_SHARED, VPIF_DRIVER_NAME,
(void *)(&vpif_obj.dev[res_idx]->
channel_id));
if (err) {
@@ -2109,34 +1535,10 @@ 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;
- snprintf(vfd->name, sizeof(vfd->name),
- "VPIF_Capture_DRIVER_V%s",
- VPIF_CAPTURE_VERSION);
/* Set video_dev to the video device */
ch->video_dev = vfd;
}

- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (res) {
- size = resource_size(res);
- /* The resources are divided into two equal memory and when we
- * have HD output we can add them together
- */
- for (j = 0; j < VPIF_CAPTURE_MAX_DEVICES; j++) {
- ch = vpif_obj.dev[j];
- ch->channel_id = j;
- /* only enabled if second resource exists */
- config_params.video_limit[ch->channel_id] = 0;
- if (size)
- config_params.video_limit[ch->channel_id] =
- size/2;
- }
- }
-
vpif_obj.config = pdev->dev.platform_data;

subdev_count = vpif_obj.config->subdev_count;
@@ -2209,6 +1611,7 @@ vpif_unregister:
*/
static int vpif_remove(struct platform_device *device)
{
+ struct common_obj *common;
struct channel_obj *ch;
int i;

@@ -2219,6 +1622,8 @@ static int vpif_remove(struct platform_device *device)
for (i = 0; i < VPIF_CAPTURE_MAX_DEVICES; i++) {
/* Get the pointer to the channel object */
ch = vpif_obj.dev[i];
+ common = &ch->common[i];
+ vb2_dma_contig_cleanup_ctx(common->alloc_ctx);
/* Unregister video device */
video_unregister_device(ch->video_dev);
kfree(vpif_obj.dev[i]);
@@ -2226,13 +1631,12 @@ static int vpif_remove(struct platform_device *device)
return 0;
}

-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
/**
* vpif_suspend: vpif device suspend
*/
static int vpif_suspend(struct device *dev)
{
-
struct common_obj *common;
struct channel_obj *ch;
int i;
@@ -2241,18 +1645,19 @@ 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 (ch->usrs && common->io_usrs) {
- /* Disable channel */
- if (ch->channel_id == VPIF_CHANNEL0_VIDEO) {
- enable_channel0(0);
- channel0_intr_enable(0);
- }
- if (ch->channel_id == VPIF_CHANNEL1_VIDEO ||
- common->started == 2) {
- enable_channel1(0);
- channel1_intr_enable(0);
- }
+ /* Disable channel */
+ if (ch->channel_id == VPIF_CHANNEL0_VIDEO) {
+ enable_channel0(0);
+ channel0_intr_enable(0);
+ }
+ if (ch->channel_id == VPIF_CHANNEL1_VIDEO || ycmux_mode == 2) {
+ enable_channel1(0);
+ channel1_intr_enable(0);
}
mutex_unlock(&common->lock);
}
@@ -2273,18 +1678,19 @@ 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 (ch->usrs && common->io_usrs) {
- /* Disable channel */
- if (ch->channel_id == VPIF_CHANNEL0_VIDEO) {
- enable_channel0(1);
- channel0_intr_enable(1);
- }
- if (ch->channel_id == VPIF_CHANNEL1_VIDEO ||
- common->started == 2) {
- enable_channel1(1);
- channel1_intr_enable(1);
- }
+ /* Enable channel */
+ if (ch->channel_id == VPIF_CHANNEL0_VIDEO) {
+ enable_channel0(1);
+ channel0_intr_enable(1);
+ }
+ if (ch->channel_id == VPIF_CHANNEL1_VIDEO || ycmux_mode == 2) {
+ enable_channel1(1);
+ channel1_intr_enable(1);
}
mutex_unlock(&common->lock);
}
@@ -2292,21 +1698,15 @@ static int vpif_resume(struct device *dev)
return 0;
}

-static const struct dev_pm_ops vpif_dev_pm_ops = {
- .suspend = vpif_suspend,
- .resume = vpif_resume,
-};
-
-#define vpif_pm_ops (&vpif_dev_pm_ops)
-#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_capture",
+ .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_capture.h b/drivers/media/platform/davinci/vpif_capture.h
index 5a29d9a..421a356 100644
--- a/drivers/media/platform/davinci/vpif_capture.h
+++ b/drivers/media/platform/davinci/vpif_capture.h
@@ -19,8 +19,6 @@
#ifndef VPIF_CAPTURE_H
#define VPIF_CAPTURE_H

-#ifdef __KERNEL__
-
/* Header files */
#include <media/videobuf2-dma-contig.h>
#include <media/v4l2-device.h>
@@ -63,11 +61,6 @@ struct common_obj {
struct vpif_cap_buffer *cur_frm;
/* Pointer pointing to current v4l2_buffer */
struct vpif_cap_buffer *next_frm;
- /*
- * This field keeps track of type of buffer exchange mechanism
- * user has selected
- */
- enum v4l2_memory memory;
/* Used to store pixel format */
struct v4l2_format fmt;
/* Buffer queue used in video-buf */
@@ -80,12 +73,8 @@ struct common_obj {
spinlock_t irqlock;
/* lock used to access this structure */
struct mutex lock;
- /* number of users performing IO */
- u32 io_usrs;
- /* Indicates whether streaming started */
- u8 started;
/* Function pointer to set the addresses */
- void (*set_addr) (unsigned long, unsigned long, unsigned long,
+ void (*set_addr)(unsigned long, unsigned long, unsigned long,
unsigned long);
/* offset where Y top starts from the starting of the buffer */
u32 ytop_off;
@@ -104,14 +93,8 @@ struct common_obj {
struct channel_obj {
/* Identifies video device for this channel */
struct video_device *video_dev;
- /* Used to keep track of state of the priority */
- struct v4l2_prio_state prio;
- /* number of open instances of the channel */
- int usrs;
/* Indicates id of the field which is being displayed */
u32 field_id;
- /* flag to indicate whether decoder is initialized */
- u8 initialized;
/* Identifies channel */
enum vpif_channel_id channel_id;
/* Current input */
@@ -126,18 +109,6 @@ struct channel_obj {
struct video_obj video;
};

-/* File handle structure */
-struct vpif_fh {
- /* pointer to channel object for opened device */
- struct channel_obj *channel;
- /* Indicates whether this file handle is doing IO */
- u8 io_allowed[VPIF_NUMBER_OF_OBJECTS];
- /* Used to keep track priority of this instance */
- enum v4l2_priority prio;
- /* Used to indicate channel is initialize or not */
- u8 initialized;
-};
-
struct vpif_device {
struct v4l2_device v4l2_dev;
struct channel_obj *dev[VPIF_CAPTURE_NUM_CHANNELS];
@@ -146,16 +117,4 @@ struct vpif_device {
struct vpif_capture_config *config;
};

-struct vpif_config_params {
- u8 min_numbuffers;
- u8 numbuffers[VPIF_CAPTURE_NUM_CHANNELS];
- s8 device_type;
- u32 min_bufsize[VPIF_CAPTURE_NUM_CHANNELS];
- u32 channel_bufsize[VPIF_CAPTURE_NUM_CHANNELS];
- u8 default_device[VPIF_CAPTURE_NUM_CHANNELS];
- u32 video_limit[VPIF_CAPTURE_NUM_CHANNELS];
- u8 max_device_type;
-};
-
-#endif /* End of __KERNEL__ */
#endif /* VPIF_CAPTURE_H */
--
1.7.9.5

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