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authorMauro Carvalho Chehab <mchehab@redhat.com>2009-03-03 06:14:34 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2009-04-06 21:44:01 -0300
commit84b5dbf39ed2f51224841bbbf08439158d69d427 (patch)
treeb24963462dc1ad93860645d8729d1ddfc6ce526e /drivers/media/video/cx231xx/cx231xx-vbi.c
parente0d3bafd02586cfde286c320f56906fd9fa8d256 (diff)
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V4L/DVB (10955): cx231xx: CodingStyle automatic fixes with Lindent
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/cx231xx/cx231xx-vbi.c')
-rw-r--r--drivers/media/video/cx231xx/cx231xx-vbi.c555
1 files changed, 287 insertions, 268 deletions
diff --git a/drivers/media/video/cx231xx/cx231xx-vbi.c b/drivers/media/video/cx231xx/cx231xx-vbi.c
index e370160..87a77d5 100644
--- a/drivers/media/video/cx231xx/cx231xx-vbi.c
+++ b/drivers/media/video/cx231xx/cx231xx-vbi.c
@@ -2,7 +2,7 @@
cx231xx_vbi.c - driver for Conexant Cx23100/101/102 USB video capture devices
Copyright (C) 2008 <srinivasa.deevi at conexant dot com>
- Based on cx88 driver
+ Based on cx88 driver
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
@@ -39,8 +39,7 @@
#include "cx231xx.h"
#include "cx231xx-vbi.h"
-static inline void print_err_status(struct cx231xx *dev,
- int packet, int status)
+static inline void print_err_status(struct cx231xx *dev, int packet, int status)
{
char *errmsg = "Unknown";
@@ -71,10 +70,11 @@ static inline void print_err_status(struct cx231xx *dev,
break;
}
if (packet < 0) {
- cx231xx_err(DRIVER_NAME "URB status %d [%s].\n", status, errmsg);
+ cx231xx_err(DRIVER_NAME "URB status %d [%s].\n", status,
+ errmsg);
} else {
cx231xx_err(DRIVER_NAME "URB packet %d, status %d [%s].\n",
- packet, status, errmsg);
+ packet, status, errmsg);
}
}
@@ -83,12 +83,12 @@ static inline void print_err_status(struct cx231xx *dev,
*/
static inline int cx231xx_isoc_vbi_copy(struct cx231xx *dev, struct urb *urb)
{
- struct cx231xx_buffer *buf;
- struct cx231xx_dmaqueue *dma_q = urb->context;
- int rc = 1;
+ struct cx231xx_buffer *buf;
+ struct cx231xx_dmaqueue *dma_q = urb->context;
+ int rc = 1;
unsigned char *p_buffer;
- u32 bytes_parsed = 0, buffer_size = 0;
- u8 sav_eav = 0;
+ u32 bytes_parsed = 0, buffer_size = 0;
+ u8 sav_eav = 0;
if (!dev)
return 0;
@@ -104,60 +104,58 @@ static inline int cx231xx_isoc_vbi_copy(struct cx231xx *dev, struct urb *urb)
buf = dev->vbi_mode.isoc_ctl.buf;
- /* get buffer pointer and length */
- p_buffer = urb->transfer_buffer;
- buffer_size = urb->actual_length;
-
- if (buffer_size > 0) {
-
- bytes_parsed = 0;
-
- if(dma_q->is_partial_line) {
- /* Handle the case where we were working on a partial line */
- sav_eav = dma_q->last_sav;
- } else {
- /* Check for a SAV/EAV overlapping the buffer boundary */
- sav_eav = cx231xx_find_boundary_SAV_EAV(p_buffer, dma_q->partial_buf, &bytes_parsed);
- }
-
- sav_eav &= 0xF0;
- /* Get the first line if we have some portion of an SAV/EAV from the last buffer
- or a partial line */
- if(sav_eav) {
- bytes_parsed += cx231xx_get_vbi_line(dev, dma_q,
- sav_eav, /* SAV/EAV */
- p_buffer + bytes_parsed, /* p_buffer */
- buffer_size - bytes_parsed); /* buffer size */
- }
-
- /* Now parse data that is completely in this buffer */
- dma_q->is_partial_line = 0;
-
- while(bytes_parsed < buffer_size)
- {
- u32 bytes_used = 0;
-
- sav_eav = cx231xx_find_next_SAV_EAV(
- p_buffer + bytes_parsed, /* p_buffer */
- buffer_size - bytes_parsed, /* buffer size */
- &bytes_used); /* Receives bytes used to get SAV/EAV */
-
- bytes_parsed += bytes_used;
-
- sav_eav &= 0xF0;
- if(sav_eav && (bytes_parsed < buffer_size))
- {
- bytes_parsed += cx231xx_get_vbi_line(dev, dma_q,
- sav_eav, /* SAV/EAV */
- p_buffer + bytes_parsed, /* p_buffer */
- buffer_size - bytes_parsed); /* buffer size */
- }
- }
-
- /* Save the last four bytes of the buffer so we can check the buffer boundary
- condition next time */
- memcpy(dma_q->partial_buf, p_buffer + buffer_size - 4, 4);
- bytes_parsed = 0;
+ /* get buffer pointer and length */
+ p_buffer = urb->transfer_buffer;
+ buffer_size = urb->actual_length;
+
+ if (buffer_size > 0) {
+
+ bytes_parsed = 0;
+
+ if (dma_q->is_partial_line) {
+ /* Handle the case where we were working on a partial line */
+ sav_eav = dma_q->last_sav;
+ } else {
+ /* Check for a SAV/EAV overlapping the buffer boundary */
+ sav_eav =
+ cx231xx_find_boundary_SAV_EAV(p_buffer,
+ dma_q->partial_buf,
+ &bytes_parsed);
+ }
+
+ sav_eav &= 0xF0;
+ /* Get the first line if we have some portion of an SAV/EAV from the last buffer
+ or a partial line */
+ if (sav_eav) {
+ bytes_parsed += cx231xx_get_vbi_line(dev, dma_q, sav_eav, /* SAV/EAV */
+ p_buffer + bytes_parsed, /* p_buffer */
+ buffer_size - bytes_parsed); /* buffer size */
+ }
+
+ /* Now parse data that is completely in this buffer */
+ dma_q->is_partial_line = 0;
+
+ while (bytes_parsed < buffer_size) {
+ u32 bytes_used = 0;
+
+ sav_eav = cx231xx_find_next_SAV_EAV(p_buffer + bytes_parsed, /* p_buffer */
+ buffer_size - bytes_parsed, /* buffer size */
+ &bytes_used); /* Receives bytes used to get SAV/EAV */
+
+ bytes_parsed += bytes_used;
+
+ sav_eav &= 0xF0;
+ if (sav_eav && (bytes_parsed < buffer_size)) {
+ bytes_parsed += cx231xx_get_vbi_line(dev, dma_q, sav_eav, /* SAV/EAV */
+ p_buffer + bytes_parsed, /* p_buffer */
+ buffer_size - bytes_parsed); /* buffer size */
+ }
+ }
+
+ /* Save the last four bytes of the buffer so we can check the buffer boundary
+ condition next time */
+ memcpy(dma_q->partial_buf, p_buffer + buffer_size - 4, 4);
+ bytes_parsed = 0;
}
return rc;
@@ -168,25 +166,26 @@ static inline int cx231xx_isoc_vbi_copy(struct cx231xx *dev, struct urb *urb)
------------------------------------------------------------------*/
static int
-vbi_buffer_setup(struct videobuf_queue *vq, unsigned int *count, unsigned int *size)
+vbi_buffer_setup(struct videobuf_queue *vq, unsigned int *count,
+ unsigned int *size)
{
struct cx231xx_fh *fh = vq->priv_data;
- struct cx231xx *dev = fh->dev;
- u32 height = 0;
+ struct cx231xx *dev = fh->dev;
+ u32 height = 0;
height = ((dev->norm & V4L2_STD_625_50) ?
- PAL_VBI_LINES : NTSC_VBI_LINES) ;
+ PAL_VBI_LINES : NTSC_VBI_LINES);
- *size = ( dev->width * height * 2);
+ *size = (dev->width * height * 2);
if (0 == *count)
*count = CX231XX_DEF_VBI_BUF;
if (*count < CX231XX_MIN_BUF)
*count = CX231XX_MIN_BUF;
- /* call VBI setup if required */
+ /* call VBI setup if required */
/* cx231xx_i2c_call_clients(&dev->i2c_bus[1], VIDIOC_S_FREQUENCY, &f);
- */
+ */
return 0;
}
@@ -194,8 +193,8 @@ vbi_buffer_setup(struct videobuf_queue *vq, unsigned int *count, unsigned int *s
/* This is called *without* dev->slock held; please keep it that way */
static void free_buffer(struct videobuf_queue *vq, struct cx231xx_buffer *buf)
{
- struct cx231xx_fh *fh = vq->priv_data;
- struct cx231xx *dev = fh->dev;
+ struct cx231xx_fh *fh = vq->priv_data;
+ struct cx231xx *dev = fh->dev;
unsigned long flags = 0;
if (in_interrupt())
BUG();
@@ -208,7 +207,7 @@ static void free_buffer(struct videobuf_queue *vq, struct cx231xx_buffer *buf)
This should be safe; by the time we get here, the buffer isn't
queued anymore. If we ever start marking the buffers as
VIDEOBUF_ACTIVE, it won't be, though.
- */
+ */
spin_lock_irqsave(&dev->vbi_mode.slock, flags);
if (dev->vbi_mode.isoc_ctl.buf == buf)
dev->vbi_mode.isoc_ctl.buf = NULL;
@@ -220,25 +219,26 @@ static void free_buffer(struct videobuf_queue *vq, struct cx231xx_buffer *buf)
static int
vbi_buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb,
- enum v4l2_field field)
+ enum v4l2_field field)
{
- struct cx231xx_fh *fh = vq->priv_data;
- struct cx231xx_buffer *buf = container_of(vb, struct cx231xx_buffer, vb);
- struct cx231xx *dev = fh->dev;
- int rc = 0, urb_init = 0;
- u32 height = 0;
+ struct cx231xx_fh *fh = vq->priv_data;
+ struct cx231xx_buffer *buf =
+ container_of(vb, struct cx231xx_buffer, vb);
+ struct cx231xx *dev = fh->dev;
+ int rc = 0, urb_init = 0;
+ u32 height = 0;
height = ((dev->norm & V4L2_STD_625_50) ?
- PAL_VBI_LINES : NTSC_VBI_LINES) ;
- buf->vb.size = ( (dev->width << 1) * height );
+ PAL_VBI_LINES : NTSC_VBI_LINES);
+ buf->vb.size = ((dev->width << 1) * height);
- if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
+ if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
return -EINVAL;
- buf->vb.width = dev->width;
+ buf->vb.width = dev->width;
buf->vb.height = height;
- buf->vb.field = field;
- buf->vb.field = V4L2_FIELD_SEQ_TB;
+ buf->vb.field = field;
+ buf->vb.field = V4L2_FIELD_SEQ_TB;
if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
rc = videobuf_iolock(vq, &buf->vb, NULL);
@@ -251,8 +251,9 @@ vbi_buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb,
if (urb_init) {
rc = cx231xx_init_vbi_isoc(dev, CX231XX_NUM_VBI_PACKETS,
- CX231XX_NUM_VBI_BUFS, dev->vbi_mode.alt_max_pkt_size[0],
- cx231xx_isoc_vbi_copy);
+ CX231XX_NUM_VBI_BUFS,
+ dev->vbi_mode.alt_max_pkt_size[0],
+ cx231xx_isoc_vbi_copy);
if (rc < 0)
goto fail;
}
@@ -260,7 +261,7 @@ vbi_buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb,
buf->vb.state = VIDEOBUF_PREPARED;
return 0;
-fail:
+ fail:
free_buffer(vq, buf);
return rc;
}
@@ -268,10 +269,11 @@ fail:
static void
vbi_buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
{
- struct cx231xx_buffer *buf = container_of(vb, struct cx231xx_buffer, vb);
- struct cx231xx_fh *fh = vq->priv_data;
- struct cx231xx *dev = fh->dev;
- struct cx231xx_dmaqueue *vidq = &dev->vbi_mode.vidq;
+ struct cx231xx_buffer *buf =
+ container_of(vb, struct cx231xx_buffer, vb);
+ struct cx231xx_fh *fh = vq->priv_data;
+ struct cx231xx *dev = fh->dev;
+ struct cx231xx_dmaqueue *vidq = &dev->vbi_mode.vidq;
buf->vb.state = VIDEOBUF_QUEUED;
list_add_tail(&buf->vb.queue, &vidq->active);
@@ -279,29 +281,27 @@ vbi_buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
}
static void vbi_buffer_release(struct videobuf_queue *vq,
- struct videobuf_buffer *vb)
+ struct videobuf_buffer *vb)
{
- struct cx231xx_buffer *buf = container_of(vb, struct cx231xx_buffer, vb);
- /*
- struct cx231xx_fh *fh = vq->priv_data;
- struct cx231xx *dev = (struct cx231xx *)fh->dev;
+ struct cx231xx_buffer *buf =
+ container_of(vb, struct cx231xx_buffer, vb);
+ /*
+ struct cx231xx_fh *fh = vq->priv_data;
+ struct cx231xx *dev = (struct cx231xx *)fh->dev;
- cx231xx_info(DRIVER_NAME "cx231xx: called vbi_buffer_release\n");
- */
+ cx231xx_info(DRIVER_NAME "cx231xx: called vbi_buffer_release\n");
+ */
free_buffer(vq, buf);
}
-
struct videobuf_queue_ops cx231xx_vbi_qops = {
- .buf_setup = vbi_buffer_setup,
- .buf_prepare = vbi_buffer_prepare,
- .buf_queue = vbi_buffer_queue,
- .buf_release = vbi_buffer_release,
+ .buf_setup = vbi_buffer_setup,
+ .buf_prepare = vbi_buffer_prepare,
+ .buf_queue = vbi_buffer_queue,
+ .buf_release = vbi_buffer_release,
};
-
-
/* ------------------------------------------------------------------
URB control
------------------------------------------------------------------*/
@@ -311,23 +311,24 @@ struct videobuf_queue_ops cx231xx_vbi_qops = {
*/
static void cx231xx_irq_vbi_callback(struct urb *urb)
{
- struct cx231xx_dmaqueue *dma_q = urb->context;
- struct cx231xx_video_mode *vmode = container_of(dma_q, struct cx231xx_video_mode, vidq);
- struct cx231xx *dev = container_of(vmode, struct cx231xx, vbi_mode);
+ struct cx231xx_dmaqueue *dma_q = urb->context;
+ struct cx231xx_video_mode *vmode =
+ container_of(dma_q, struct cx231xx_video_mode, vidq);
+ struct cx231xx *dev = container_of(vmode, struct cx231xx, vbi_mode);
int rc;
-
- switch (urb->status) {
- case 0: /* success */
- case -ETIMEDOUT: /* NAK */
- break;
- case -ECONNRESET: /* kill */
- case -ENOENT:
- case -ESHUTDOWN:
- return;
- default: /* error */
- cx231xx_err(DRIVER_NAME "urb completition error %d.\n", urb->status);
- break;
+ switch (urb->status) {
+ case 0: /* success */
+ case -ETIMEDOUT: /* NAK */
+ break;
+ case -ECONNRESET: /* kill */
+ case -ENOENT:
+ case -ESHUTDOWN:
+ return;
+ default: /* error */
+ cx231xx_err(DRIVER_NAME "urb completition error %d.\n",
+ urb->status);
+ break;
}
/* Copy data from URB */
@@ -341,7 +342,7 @@ static void cx231xx_irq_vbi_callback(struct urb *urb)
urb->status = usb_submit_urb(urb, GFP_ATOMIC);
if (urb->status) {
cx231xx_err(DRIVER_NAME "urb resubmit failed (error=%i)\n",
- urb->status);
+ urb->status);
}
}
@@ -353,21 +354,23 @@ void cx231xx_uninit_vbi_isoc(struct cx231xx *dev)
struct urb *urb;
int i;
- cx231xx_info(DRIVER_NAME "cx231xx: called cx231xx_uninit_vbi_isoc\n");
+ cx231xx_info(DRIVER_NAME "cx231xx: called cx231xx_uninit_vbi_isoc\n");
dev->vbi_mode.isoc_ctl.nfields = -1;
for (i = 0; i < dev->vbi_mode.isoc_ctl.num_bufs; i++) {
urb = dev->vbi_mode.isoc_ctl.urb[i];
if (urb) {
- if (!irqs_disabled())
- usb_kill_urb(urb);
- else
- usb_unlink_urb(urb);
+ if (!irqs_disabled())
+ usb_kill_urb(urb);
+ else
+ usb_unlink_urb(urb);
if (dev->vbi_mode.isoc_ctl.transfer_buffer[i]) {
- kfree(dev->vbi_mode.isoc_ctl.transfer_buffer[i]);
- dev->vbi_mode.isoc_ctl.transfer_buffer[i] = NULL;
+ kfree(dev->vbi_mode.isoc_ctl.
+ transfer_buffer[i]);
+ dev->vbi_mode.isoc_ctl.transfer_buffer[i] =
+ NULL;
}
usb_free_urb(urb);
dev->vbi_mode.isoc_ctl.urb[i] = NULL;
@@ -384,14 +387,16 @@ void cx231xx_uninit_vbi_isoc(struct cx231xx *dev)
cx231xx_capture_start(dev, 0, Vbi);
}
+
EXPORT_SYMBOL_GPL(cx231xx_uninit_vbi_isoc);
/*
* Allocate URBs and start IRQ
*/
int cx231xx_init_vbi_isoc(struct cx231xx *dev, int max_packets,
- int num_bufs, int max_pkt_size,
- int (*isoc_copy) (struct cx231xx *dev, struct urb *urb))
+ int num_bufs, int max_pkt_size,
+ int (*isoc_copy) (struct cx231xx * dev,
+ struct urb * urb))
{
struct cx231xx_dmaqueue *dma_q = &dev->vbi_mode.vidq;
int i;
@@ -404,31 +409,33 @@ int cx231xx_init_vbi_isoc(struct cx231xx *dev, int max_packets,
/* De-allocates all pending stuff */
cx231xx_uninit_vbi_isoc(dev);
- /* clear if any halt */
- usb_clear_halt(dev->udev, usb_rcvbulkpipe(dev->udev, dev->vbi_mode.end_point_addr));
-
+ /* clear if any halt */
+ usb_clear_halt(dev->udev,
+ usb_rcvbulkpipe(dev->udev,
+ dev->vbi_mode.end_point_addr));
dev->vbi_mode.isoc_ctl.isoc_copy = isoc_copy;
dev->vbi_mode.isoc_ctl.num_bufs = num_bufs;
- dma_q->pos = 0;
- dma_q->is_partial_line = 0;
- dma_q->last_sav = 0;
- dma_q->current_field = -1;
- dma_q->bytes_left_in_line = dev->width << 1;
- dma_q->lines_per_field = ((dev->norm & V4L2_STD_625_50) ?
- PAL_VBI_LINES : NTSC_VBI_LINES) ;
- dma_q->lines_completed = 0;
- for(i = 0; i < 8 ; i++)
- dma_q->partial_buf[i] = 0;
-
- dev->vbi_mode.isoc_ctl.urb = kzalloc(sizeof(void *)*num_bufs, GFP_KERNEL);
+ dma_q->pos = 0;
+ dma_q->is_partial_line = 0;
+ dma_q->last_sav = 0;
+ dma_q->current_field = -1;
+ dma_q->bytes_left_in_line = dev->width << 1;
+ dma_q->lines_per_field = ((dev->norm & V4L2_STD_625_50) ?
+ PAL_VBI_LINES : NTSC_VBI_LINES);
+ dma_q->lines_completed = 0;
+ for (i = 0; i < 8; i++)
+ dma_q->partial_buf[i] = 0;
+
+ dev->vbi_mode.isoc_ctl.urb =
+ kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
if (!dev->vbi_mode.isoc_ctl.urb) {
cx231xx_errdev("cannot alloc memory for usb buffers\n");
return -ENOMEM;
}
- dev->vbi_mode.isoc_ctl.transfer_buffer = kzalloc(sizeof(void *)*num_bufs,
- GFP_KERNEL);
+ dev->vbi_mode.isoc_ctl.transfer_buffer =
+ kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
if (!dev->vbi_mode.isoc_ctl.transfer_buffer) {
cx231xx_errdev("cannot allocate memory for usbtransfer\n");
kfree(dev->vbi_mode.isoc_ctl.urb);
@@ -445,27 +452,29 @@ int cx231xx_init_vbi_isoc(struct cx231xx *dev, int max_packets,
urb = usb_alloc_urb(0, GFP_KERNEL);
if (!urb) {
- cx231xx_err(DRIVER_NAME ": cannot alloc isoc_ctl.urb %i\n", i);
+ cx231xx_err(DRIVER_NAME
+ ": cannot alloc isoc_ctl.urb %i\n", i);
cx231xx_uninit_vbi_isoc(dev);
return -ENOMEM;
}
dev->vbi_mode.isoc_ctl.urb[i] = urb;
- urb->transfer_flags = 0;
+ urb->transfer_flags = 0;
- dev->vbi_mode.isoc_ctl.transfer_buffer[i] = kzalloc(sb_size, GFP_KERNEL);
+ dev->vbi_mode.isoc_ctl.transfer_buffer[i] =
+ kzalloc(sb_size, GFP_KERNEL);
if (!dev->vbi_mode.isoc_ctl.transfer_buffer[i]) {
- cx231xx_err(DRIVER_NAME ": unable to allocate %i bytes for transfer"
- " buffer %i%s\n",
- sb_size, i,
- in_interrupt()?" while in int":"");
+ cx231xx_err(DRIVER_NAME
+ ": unable to allocate %i bytes for transfer"
+ " buffer %i%s\n", sb_size, i,
+ in_interrupt()? " while in int" : "");
cx231xx_uninit_vbi_isoc(dev);
return -ENOMEM;
}
pipe = usb_rcvbulkpipe(dev->udev, dev->vbi_mode.end_point_addr);
- usb_fill_bulk_urb(urb, dev->udev, pipe,
- dev->vbi_mode.isoc_ctl.transfer_buffer[i], sb_size,
- cx231xx_irq_vbi_callback, dma_q);
+ usb_fill_bulk_urb(urb, dev->udev, pipe,
+ dev->vbi_mode.isoc_ctl.transfer_buffer[i],
+ sb_size, cx231xx_irq_vbi_callback, dma_q);
}
init_waitqueue_head(&dma_q->wq);
@@ -474,55 +483,58 @@ int cx231xx_init_vbi_isoc(struct cx231xx *dev, int max_packets,
for (i = 0; i < dev->vbi_mode.isoc_ctl.num_bufs; i++) {
rc = usb_submit_urb(dev->vbi_mode.isoc_ctl.urb[i], GFP_ATOMIC);
if (rc) {
- cx231xx_err(DRIVER_NAME ": submit of urb %i failed (error=%i)\n", i,
- rc);
+ cx231xx_err(DRIVER_NAME
+ ": submit of urb %i failed (error=%i)\n", i,
+ rc);
cx231xx_uninit_vbi_isoc(dev);
return rc;
}
}
- cx231xx_capture_start(dev, 1, Vbi);
+ cx231xx_capture_start(dev, 1, Vbi);
return 0;
}
-EXPORT_SYMBOL_GPL(cx231xx_init_vbi_isoc);
+EXPORT_SYMBOL_GPL(cx231xx_init_vbi_isoc);
-u32 cx231xx_get_vbi_line(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q,
- u8 sav_eav, u8 *p_buffer, u32 buffer_size)
+u32 cx231xx_get_vbi_line(struct cx231xx * dev, struct cx231xx_dmaqueue * dma_q,
+ u8 sav_eav, u8 * p_buffer, u32 buffer_size)
{
- u32 bytes_copied = 0;
- int current_field = -1;
+ u32 bytes_copied = 0;
+ int current_field = -1;
- switch(sav_eav) {
+ switch (sav_eav) {
- case SAV_VBI_FIELD1:
- current_field = 1;
- break;
+ case SAV_VBI_FIELD1:
+ current_field = 1;
+ break;
- case SAV_VBI_FIELD2:
- current_field = 2;
- break;
- default:
- break;
- }
+ case SAV_VBI_FIELD2:
+ current_field = 2;
+ break;
+ default:
+ break;
+ }
- if(current_field < 0 )
- return bytes_copied;
+ if (current_field < 0)
+ return bytes_copied;
- dma_q->last_sav = sav_eav;
+ dma_q->last_sav = sav_eav;
- bytes_copied = cx231xx_copy_vbi_line(dev, dma_q, p_buffer, buffer_size, current_field);
+ bytes_copied =
+ cx231xx_copy_vbi_line(dev, dma_q, p_buffer, buffer_size,
+ current_field);
- return bytes_copied;
+ return bytes_copied;
}
/*
* Announces that a buffer were filled and request the next
*/
static inline void vbi_buffer_filled(struct cx231xx *dev,
- struct cx231xx_dmaqueue *dma_q,
- struct cx231xx_buffer *buf)
+ struct cx231xx_dmaqueue *dma_q,
+ struct cx231xx_buffer *buf)
{
/* Advice that buffer was filled */
/* cx231xx_info(DRIVER_NAME "[%p/%d] wakeup\n", buf, buf->vb.i); */
@@ -537,80 +549,83 @@ static inline void vbi_buffer_filled(struct cx231xx *dev,
wake_up(&buf->vb.done);
}
-u32 cx231xx_copy_vbi_line(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q,
- u8 *p_line, u32 length, int field_number)
+u32 cx231xx_copy_vbi_line(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q,
+ u8 * p_line, u32 length, int field_number)
{
- u32 bytes_to_copy;
- struct cx231xx_buffer *buf;
- u32 _line_size = dev->width * 2;
+ u32 bytes_to_copy;
+ struct cx231xx_buffer *buf;
+ u32 _line_size = dev->width * 2;
- if( dma_q->current_field != field_number ) {
- cx231xx_reset_vbi_buffer(dev, dma_q);
- }
+ if (dma_q->current_field != field_number) {
+ cx231xx_reset_vbi_buffer(dev, dma_q);
+ }
- /* get the buffer pointer */
- buf = dev->vbi_mode.isoc_ctl.buf;
+ /* get the buffer pointer */
+ buf = dev->vbi_mode.isoc_ctl.buf;
- /* Remember the field number for next time */
- dma_q->current_field = field_number;
+ /* Remember the field number for next time */
+ dma_q->current_field = field_number;
- bytes_to_copy = dma_q->bytes_left_in_line;
- if(bytes_to_copy > length)
- bytes_to_copy = length;
+ bytes_to_copy = dma_q->bytes_left_in_line;
+ if (bytes_to_copy > length)
+ bytes_to_copy = length;
- if(dma_q->lines_completed >= dma_q->lines_per_field) {
- dma_q->bytes_left_in_line -= bytes_to_copy;
- dma_q->is_partial_line = (dma_q->bytes_left_in_line == 0) ? 0 : 1;
- return 0;
- }
+ if (dma_q->lines_completed >= dma_q->lines_per_field) {
+ dma_q->bytes_left_in_line -= bytes_to_copy;
+ dma_q->is_partial_line =
+ (dma_q->bytes_left_in_line == 0) ? 0 : 1;
+ return 0;
+ }
- dma_q->is_partial_line = 1;
+ dma_q->is_partial_line = 1;
- /* If we don't have a buffer, just return the number of bytes we would
- have copied if we had a buffer. */
- if(!buf) {
- dma_q->bytes_left_in_line -= bytes_to_copy;
- dma_q->is_partial_line = (dma_q->bytes_left_in_line == 0) ? 0 : 1;
- return bytes_to_copy;
- }
+ /* If we don't have a buffer, just return the number of bytes we would
+ have copied if we had a buffer. */
+ if (!buf) {
+ dma_q->bytes_left_in_line -= bytes_to_copy;
+ dma_q->is_partial_line =
+ (dma_q->bytes_left_in_line == 0) ? 0 : 1;
+ return bytes_to_copy;
+ }
- /* copy the data to video buffer */
- cx231xx_do_vbi_copy(dev, dma_q, p_line, bytes_to_copy);
+ /* copy the data to video buffer */
+ cx231xx_do_vbi_copy(dev, dma_q, p_line, bytes_to_copy);
- dma_q->pos += bytes_to_copy;
- dma_q->bytes_left_in_line -= bytes_to_copy;
+ dma_q->pos += bytes_to_copy;
+ dma_q->bytes_left_in_line -= bytes_to_copy;
- if(dma_q->bytes_left_in_line == 0) {
+ if (dma_q->bytes_left_in_line == 0) {
- dma_q->bytes_left_in_line = _line_size;
- dma_q->lines_completed++;
- dma_q->is_partial_line = 0;
+ dma_q->bytes_left_in_line = _line_size;
+ dma_q->lines_completed++;
+ dma_q->is_partial_line = 0;
- if(cx231xx_is_vbi_buffer_done(dev, dma_q) && buf ) {
+ if (cx231xx_is_vbi_buffer_done(dev, dma_q) && buf) {
- vbi_buffer_filled(dev, dma_q, buf);
+ vbi_buffer_filled(dev, dma_q, buf);
- dma_q->pos = 0;
- buf = NULL;
- dma_q->lines_completed = 0;
- }
- }
+ dma_q->pos = 0;
+ buf = NULL;
+ dma_q->lines_completed = 0;
+ }
+ }
- return bytes_to_copy;
+ return bytes_to_copy;
}
/*
* video-buf generic routine to get the next available buffer
*/
static inline void get_next_vbi_buf(struct cx231xx_dmaqueue *dma_q,
- struct cx231xx_buffer **buf)
+ struct cx231xx_buffer **buf)
{
- struct cx231xx_video_mode *vmode = container_of(dma_q, struct cx231xx_video_mode, vidq);
- struct cx231xx *dev = container_of(vmode, struct cx231xx, vbi_mode);
+ struct cx231xx_video_mode *vmode =
+ container_of(dma_q, struct cx231xx_video_mode, vidq);
+ struct cx231xx *dev = container_of(vmode, struct cx231xx, vbi_mode);
char *outp;
if (list_empty(&dma_q->active)) {
- cx231xx_err(DRIVER_NAME ": No active queue to serve\n");
+ cx231xx_err(DRIVER_NAME ": No active queue to serve\n");
dev->vbi_mode.isoc_ctl.buf = NULL;
*buf = NULL;
return;
@@ -628,66 +643,70 @@ static inline void get_next_vbi_buf(struct cx231xx_dmaqueue *dma_q,
return;
}
-
-void cx231xx_reset_vbi_buffer(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q)
+void cx231xx_reset_vbi_buffer(struct cx231xx *dev,
+ struct cx231xx_dmaqueue *dma_q)
{
- struct cx231xx_buffer *buf;
+ struct cx231xx_buffer *buf;
- buf = dev->vbi_mode.isoc_ctl.buf;
+ buf = dev->vbi_mode.isoc_ctl.buf;
- if(buf == NULL) {
+ if (buf == NULL) {
- /* first try to get the buffer */
- get_next_vbi_buf(dma_q, &buf);
+ /* first try to get the buffer */
+ get_next_vbi_buf(dma_q, &buf);
- dma_q->pos = 0;
- dma_q->current_field = -1;
- }
+ dma_q->pos = 0;
+ dma_q->current_field = -1;
+ }
- dma_q->bytes_left_in_line = dev->width << 1;
- dma_q->lines_completed = 0;
+ dma_q->bytes_left_in_line = dev->width << 1;
+ dma_q->lines_completed = 0;
}
int cx231xx_do_vbi_copy(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q,
- u8 *p_buffer, u32 bytes_to_copy)
+ u8 * p_buffer, u32 bytes_to_copy)
{
- u8 *p_out_buffer = NULL;
- u32 current_line_bytes_copied = 0;
- struct cx231xx_buffer *buf;
- u32 _line_size = dev->width << 1;
- void *startwrite;
- int offset, lencopy;
+ u8 *p_out_buffer = NULL;
+ u32 current_line_bytes_copied = 0;
+ struct cx231xx_buffer *buf;
+ u32 _line_size = dev->width << 1;
+ void *startwrite;
+ int offset, lencopy;
- buf = dev->vbi_mode.isoc_ctl.buf;
+ buf = dev->vbi_mode.isoc_ctl.buf;
- if (buf == NULL) {
- return -1;
- }
+ if (buf == NULL) {
+ return -1;
+ }
p_out_buffer = videobuf_to_vmalloc(&buf->vb);
- if(dma_q->bytes_left_in_line != _line_size ) {
- current_line_bytes_copied = _line_size - dma_q->bytes_left_in_line;
- }
+ if (dma_q->bytes_left_in_line != _line_size) {
+ current_line_bytes_copied =
+ _line_size - dma_q->bytes_left_in_line;
+ }
- offset = ( dma_q->lines_completed * _line_size ) + current_line_bytes_copied;
+ offset =
+ (dma_q->lines_completed * _line_size) + current_line_bytes_copied;
- /* prepare destination address */
+ /* prepare destination address */
startwrite = p_out_buffer + offset;
- lencopy = dma_q->bytes_left_in_line > bytes_to_copy ? bytes_to_copy : dma_q->bytes_left_in_line;
+ lencopy =
+ dma_q->bytes_left_in_line >
+ bytes_to_copy ? bytes_to_copy : dma_q->bytes_left_in_line;
- memcpy(startwrite, p_buffer, lencopy);
+ memcpy(startwrite, p_buffer, lencopy);
- return 0;
+ return 0;
}
-
-u8 cx231xx_is_vbi_buffer_done(struct cx231xx *dev,struct cx231xx_dmaqueue *dma_q)
+u8 cx231xx_is_vbi_buffer_done(struct cx231xx * dev,
+ struct cx231xx_dmaqueue * dma_q)
{
- u32 height = 0;
+ u32 height = 0;
height = ((dev->norm & V4L2_STD_625_50) ?
- PAL_VBI_LINES : NTSC_VBI_LINES) ;
- return (dma_q->lines_completed == height)?1:0;
+ PAL_VBI_LINES : NTSC_VBI_LINES);
+ return (dma_q->lines_completed == height) ? 1 : 0;
}