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[media] vpif_cap/disp: Add debug functionality 

The following functions are added to the drivers:
    - vpif_g_chip_ident
    - vpif_dbg_g_register
    - vpif_dbg_s_register
    - vpif_log_status

Signed-off-by: Mats Randgaard <mats.randgaard@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.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 12:17:41 -03:00 committed by Mauro Carvalho Chehab
parent d2db8fee0d
commit 7036d6a73c
2 changed files with 169 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

83
drivers/media/video/davinci/vpif_capture.c
View File

@ -37,6 +37,7 @@
#include <linux/slab.h>
#include <media/v4l2-device.h>
#include <media/v4l2-ioctl.h>
#include <media/v4l2-chip-ident.h>
#include "vpif_capture.h"
#include "vpif.h"
@ -1807,6 +1808,82 @@ static int vpif_cropcap(struct file *file, void *priv,
return 0;
}
/*
* vpif_g_chip_ident() - Identify the chip
* @file: file ptr
* @priv: file handle
* @chip: chip identity
*
* Returns zero or -EINVAL if read operations fails.
*/
static int vpif_g_chip_ident(struct file *file, void *priv,
struct v4l2_dbg_chip_ident *chip)
{
chip->ident = V4L2_IDENT_NONE;
chip->revision = 0;
if (chip->match.type != V4L2_CHIP_MATCH_I2C_DRIVER &&
chip->match.type != V4L2_CHIP_MATCH_I2C_ADDR) {
vpif_dbg(2, debug, "match_type is invalid.\n");
return -EINVAL;
}
return v4l2_device_call_until_err(&vpif_obj.v4l2_dev, 0, core,
g_chip_ident, chip);
}
#ifdef CONFIG_VIDEO_ADV_DEBUG
/*
* vpif_dbg_g_register() - Read register
* @file: file ptr
* @priv: file handle
* @reg: register to be read
*
* Debugging only
* Returns zero or -EINVAL if read operations fails.
*/
static int vpif_dbg_g_register(struct file *file, void *priv,
struct v4l2_dbg_register *reg){
struct vpif_fh *fh = priv;
struct channel_obj *ch = fh->channel;
return v4l2_subdev_call(vpif_obj.sd[ch->curr_sd_index], core,
g_register, reg);
}
/*
* vpif_dbg_s_register() - Write to register
* @file: file ptr
* @priv: file handle
* @reg: register to be modified
*
* Debugging only
* Returns zero or -EINVAL if write operations fails.
*/
static int vpif_dbg_s_register(struct file *file, void *priv,
struct v4l2_dbg_register *reg){
struct vpif_fh *fh = priv;
struct channel_obj *ch = fh->channel;
return v4l2_subdev_call(vpif_obj.sd[ch->curr_sd_index], core,
s_register, reg);
}
#endif
/*
* vpif_log_status() - Status information
* @file: file ptr
* @priv: file handle
*
* Returns zero.
*/
static int vpif_log_status(struct file *filep, void *priv)
{
/* status for sub devices */
v4l2_device_call_all(&vpif_obj.v4l2_dev, 0, core, log_status);
return 0;
}
/* vpif capture ioctl operations */
static const struct v4l2_ioctl_ops vpif_ioctl_ops = {
.vidioc_querycap = vpif_querycap,
@ -1829,6 +1906,12 @@ static const struct v4l2_ioctl_ops vpif_ioctl_ops = {
.vidioc_streamon = vpif_streamon,
.vidioc_streamoff = vpif_streamoff,
.vidioc_cropcap = vpif_cropcap,
.vidioc_g_chip_ident = vpif_g_chip_ident,
#ifdef CONFIG_VIDEO_ADV_DEBUG
.vidioc_g_register = vpif_dbg_g_register,
.vidioc_s_register = vpif_dbg_s_register,
#endif
.vidioc_log_status = vpif_log_status,
};
/* vpif file operations */

86
drivers/media/video/davinci/vpif_display.c
View File

@ -38,6 +38,7 @@
#include <media/adv7343.h>
#include <media/v4l2-device.h>
#include <media/v4l2-ioctl.h>
#include <media/v4l2-chip-ident.h>
#include <mach/dm646x.h>
@ -1315,6 +1316,85 @@ static int vpif_s_priority(struct file *file, void *priv, enum v4l2_priority p)
return v4l2_prio_change(&ch->prio, &fh->prio, p);
}
/*
* vpif_g_chip_ident() - Identify the chip
* @file: file ptr
* @priv: file handle
* @chip: chip identity
*
* Returns zero or -EINVAL if read operations fails.
*/
static int vpif_g_chip_ident(struct file *file, void *priv,
struct v4l2_dbg_chip_ident *chip)
{
chip->ident = V4L2_IDENT_NONE;
chip->revision = 0;
if (chip->match.type != V4L2_CHIP_MATCH_I2C_DRIVER &&
chip->match.type != V4L2_CHIP_MATCH_I2C_ADDR) {
vpif_dbg(2, debug, "match_type is invalid.\n");
return -EINVAL;
}
return v4l2_device_call_until_err(&vpif_obj.v4l2_dev, 0, core,
g_chip_ident, chip);
}
#ifdef CONFIG_VIDEO_ADV_DEBUG
/*
* vpif_dbg_g_register() - Read register
* @file: file ptr
* @priv: file handle
* @reg: register to be read
*
* Debugging only
* Returns zero or -EINVAL if read operations fails.
*/
static int vpif_dbg_g_register(struct file *file, void *priv,
struct v4l2_dbg_register *reg){
struct vpif_fh *fh = priv;
struct channel_obj *ch = fh->channel;
struct video_obj *vid_ch = &ch->video;
return v4l2_subdev_call(vpif_obj.sd[vid_ch->output_id], core,
g_register, reg);
}
/*
* vpif_dbg_s_register() - Write to register
* @file: file ptr
* @priv: file handle
* @reg: register to be modified
*
* Debugging only
* Returns zero or -EINVAL if write operations fails.
*/
static int vpif_dbg_s_register(struct file *file, void *priv,
struct v4l2_dbg_register *reg){
struct vpif_fh *fh = priv;
struct channel_obj *ch = fh->channel;
struct video_obj *vid_ch = &ch->video;
return v4l2_subdev_call(vpif_obj.sd[vid_ch->output_id], core,
s_register, reg);
}
#endif
/*
* vpif_log_status() - Status information
* @file: file ptr
* @priv: file handle
*
* Returns zero.
*/
static int vpif_log_status(struct file *filep, void *priv)
{
/* status for sub devices */
v4l2_device_call_all(&vpif_obj.v4l2_dev, 0, core, log_status);
return 0;
}
/* vpif display ioctl operations */
static const struct v4l2_ioctl_ops vpif_ioctl_ops = {
.vidioc_querycap = vpif_querycap,
@ -1336,6 +1416,12 @@ static const struct v4l2_ioctl_ops vpif_ioctl_ops = {
.vidioc_s_output = vpif_s_output,
.vidioc_g_output = vpif_g_output,
.vidioc_cropcap = vpif_cropcap,
.vidioc_g_chip_ident = vpif_g_chip_ident,
#ifdef CONFIG_VIDEO_ADV_DEBUG
.vidioc_g_register = vpif_dbg_g_register,
.vidioc_s_register = vpif_dbg_s_register,
#endif
.vidioc_log_status = vpif_log_status,
};
static const struct v4l2_file_operations vpif_fops = {