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[media] vpif_cap/disp: Cleanup, improved comments 

Signed-off-by: Mats Randgaard <mats.randgaard@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Murali Karicheri <mkaricheri@gmail.com>
Acked-by: Vaibhav Hiremath <hvaibhav@ti.com>
Acked-by: Manjunath Hadli <manjunath.hadli@ti.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Mats Randgaard 2010-12-16 12:17:45 -03:00 committed by Mauro Carvalho Chehab
parent c027e165d2
commit 2c0ddd1774
3 changed files with 25 additions and 17 deletions
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13
drivers/media/video/davinci/vpif.h
View File

@ -577,11 +577,10 @@ struct vpif_channel_config_params {
char name[VPIF_MAX_NAME]; /* Name of the mode */
u16 width; /* Indicates width of the image */
u16 height; /* Indicates height of the image */
u8 frm_fmt; /* Indicates whether this is interlaced
* or progressive format */
u8 ycmux_mode; /* Indicates whether this mode requires
* single or two channels */
u16 eav2sav; /* length of sav 2 eav */
u8 frm_fmt; /* Interlaced (0) or progressive (1) */
u8 ycmux_mode; /* This mode requires one (0) or two (1)
channels */
u16 eav2sav; /* length of eav 2 sav */
u16 sav2eav; /* length of sav 2 eav */
u16 l1, l3, l5, l7, l9, l11; /* Other parameter configurations */
u16 vsize; /* Vertical size of the image */
@ -589,8 +588,8 @@ struct vpif_channel_config_params {
* is in BT or in CCD/CMOS */
u8 vbi_supported; /* Indicates whether this mode
* supports capturing vbi or not */
u8 hd_sd;
v4l2_std_id stdid;
u8 hd_sd; /* HDTV (1) or SDTV (0) format */
v4l2_std_id stdid; /* SDTV format */
u32 dv_preset; /* HDTV format */
};

13
drivers/media/video/davinci/vpif_capture.c
View File

@ -329,7 +329,7 @@ static void vpif_schedule_next_buffer(struct common_obj *common)
* @dev_id: dev_id ptr
*
* It changes status of the captured buffer, takes next buffer from the queue
* and sets its address in VPIF registers
* and sets its address in VPIF registers
*/
static irqreturn_t vpif_channel_isr(int irq, void *dev_id)
{
@ -422,14 +422,12 @@ static int vpif_update_std_info(struct channel_obj *ch)
struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
struct vpif_params *vpifparams = &ch->vpifparams;
const struct vpif_channel_config_params *config;
struct vpif_channel_config_params *std_info;
struct vpif_channel_config_params *std_info = &vpifparams->std_info;
struct video_obj *vid_ch = &ch->video;
int index;
vpif_dbg(2, debug, "vpif_update_std_info\n");
std_info = &vpifparams->std_info;
for (index = 0; index < vpif_ch_params_count; index++) {
config = &ch_params[index];
if (config->hd_sd == 0) {
@ -458,6 +456,7 @@ static int vpif_update_std_info(struct channel_obj *ch)
common->fmt.fmt.pix.bytesperline = std_info->width;
vpifparams->video_params.hpitch = std_info->width;
vpifparams->video_params.storage_mode = std_info->frm_fmt;
return 0;
}
@ -1692,7 +1691,7 @@ static int vpif_s_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_pix_format *pixfmt;
int ret = 0;
vpif_dbg(2, debug, "VIDIOC_S_FMT\n");
vpif_dbg(2, debug, "%s\n", __func__);
/* If streaming is started, return error */
if (common->started) {
@ -2336,9 +2335,9 @@ static __init int vpif_probe(struct platform_device *pdev)
if (vpif_obj.sd[i])
vpif_obj.sd[i]->grp_id = 1 << i;
}
v4l2_info(&vpif_obj.v4l2_dev, "DM646x VPIF Capture driver"
" initialized\n");
v4l2_info(&vpif_obj.v4l2_dev,
"DM646x VPIF capture driver initialized\n");
return 0;
probe_subdev_out:

16
drivers/media/video/davinci/vpif_display.c
View File

@ -580,7 +580,10 @@ static void vpif_config_addr(struct channel_obj *ch, int muxmode)
static int vpif_mmap(struct file *filep, struct vm_area_struct *vma)
{
struct vpif_fh *fh = filep->private_data;
struct common_obj *common = &fh->channel->common[VPIF_VIDEO_INDEX];
struct channel_obj *ch = fh->channel;
struct common_obj *common = &(ch->common[VPIF_VIDEO_INDEX]);
vpif_dbg(2, debug, "vpif_mmap\n");
return videobuf_mmap_mapper(&common->buffer_queue, vma);
}
@ -692,7 +695,12 @@ static int vpif_release(struct file *filep)
}
/* functions implementing ioctls */
/**
* vpif_querycap() - QUERYCAP handler
* @file: file ptr
* @priv: file handle
* @cap: ptr to v4l2_capability structure
*/
static int vpif_querycap(struct file *file, void *priv,
struct v4l2_capability *cap)
{
@ -1106,7 +1114,7 @@ static int vpif_streamon(struct file *file, void *priv,
if (ret < 0)
return ret;
/* Call videobuf_streamon to start streaming in videobuf */
/* Call videobuf_streamon to start streaming in videobuf */
ret = videobuf_streamon(&common->buffer_queue);
if (ret < 0) {
vpif_err("videobuf_streamon\n");
@ -1873,6 +1881,8 @@ static __init int vpif_probe(struct platform_device *pdev)
vpif_obj.sd[i]->grp_id = 1 << i;
}
v4l2_info(&vpif_obj.v4l2_dev,
"DM646x VPIF display driver initialized\n");
return 0;
probe_subdev_out: