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[media] v4l2: drop V4L2_CHIP_MATCH_SUBDEV_NAME

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After using the new VIDIOC_DBG_G_CHIP_NAME ioctl I realized that the matching
by name possibility is useless. Just drop it and rename MATCH_SUBDEV_IDX to
just MATCH_SUBDEV.
The v4l2-dbg utility is much better placed to match by name by just enumerating
all bridge and subdev devices until chip_name.name matches.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans Verkuil
2013-04-03 04:08:19 -03:00
committed by Mauro Carvalho Chehab
parent cd634f1bfc
commit 3eef25107c
6 changed files with 26 additions and 77 deletions
Download Patch File Download Diff File Expand all files Collapse all files

55
drivers/media/v4l2-core/v4l2-ioctl.c
View File

@@ -629,8 +629,7 @@ static void v4l_print_dbg_chip_ident(const void *arg, bool write_only)
const struct v4l2_dbg_chip_ident *p = arg;
pr_cont("type=%u, ", p->match.type);
if (p->match.type == V4L2_CHIP_MATCH_I2C_DRIVER ||
p->match.type == V4L2_CHIP_MATCH_SUBDEV_NAME)
if (p->match.type == V4L2_CHIP_MATCH_I2C_DRIVER)
pr_cont("name=%.*s, ",
(int)sizeof(p->match.name), p->match.name);
else
@@ -644,8 +643,7 @@ static void v4l_print_dbg_chip_name(const void *arg, bool write_only)
const struct v4l2_dbg_chip_name *p = arg;
pr_cont("type=%u, ", p->match.type);
if (p->match.type == V4L2_CHIP_MATCH_I2C_DRIVER ||
p->match.type == V4L2_CHIP_MATCH_SUBDEV_NAME)
if (p->match.type == V4L2_CHIP_MATCH_I2C_DRIVER)
pr_cont("name=%.*s, ",
(int)sizeof(p->match.name), p->match.name);
else
@@ -658,8 +656,7 @@ static void v4l_print_dbg_register(const void *arg, bool write_only)
const struct v4l2_dbg_register *p = arg;
pr_cont("type=%u, ", p->match.type);
if (p->match.type == V4L2_CHIP_MATCH_I2C_DRIVER ||
p->match.type == V4L2_CHIP_MATCH_SUBDEV_NAME)
if (p->match.type == V4L2_CHIP_MATCH_I2C_DRIVER)
pr_cont("name=%.*s, ",
(int)sizeof(p->match.name), p->match.name);
else
@@ -1791,14 +1788,6 @@ static int v4l_log_status(const struct v4l2_ioctl_ops *ops,
return ret;
}
static bool v4l_dbg_found_match(const struct v4l2_dbg_match *match,
struct v4l2_subdev *sd, int idx)
{
if (match->type == V4L2_CHIP_MATCH_SUBDEV_IDX)
return match->addr == idx;
return !strcmp(match->name, sd->name);
}
static int v4l_dbg_g_register(const struct v4l2_ioctl_ops *ops,
struct file *file, void *fh, void *arg)
{
@@ -1810,14 +1799,12 @@ static int v4l_dbg_g_register(const struct v4l2_ioctl_ops *ops,
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
if (p->match.type == V4L2_CHIP_MATCH_SUBDEV_IDX ||
p->match.type == V4L2_CHIP_MATCH_SUBDEV_NAME) {
if (p->match.type == V4L2_CHIP_MATCH_SUBDEV) {
if (vfd->v4l2_dev == NULL)
return -EINVAL;
v4l2_device_for_each_subdev(sd, vfd->v4l2_dev) {
if (v4l_dbg_found_match(&p->match, sd, idx++))
v4l2_device_for_each_subdev(sd, vfd->v4l2_dev)
if (p->match.addr == idx++)
return v4l2_subdev_call(sd, core, g_register, p);
}
return -EINVAL;
}
if (ops->vidioc_g_register)
@@ -1839,14 +1826,12 @@ static int v4l_dbg_s_register(const struct v4l2_ioctl_ops *ops,
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
if (p->match.type == V4L2_CHIP_MATCH_SUBDEV_IDX ||
p->match.type == V4L2_CHIP_MATCH_SUBDEV_NAME) {
if (p->match.type == V4L2_CHIP_MATCH_SUBDEV) {
if (vfd->v4l2_dev == NULL)
return -EINVAL;
v4l2_device_for_each_subdev(sd, vfd->v4l2_dev) {
if (v4l_dbg_found_match(&p->match, sd, idx++))
v4l2_device_for_each_subdev(sd, vfd->v4l2_dev)
if (p->match.addr == idx++)
return v4l2_subdev_call(sd, core, s_register, p);
}
return -EINVAL;
}
if (ops->vidioc_s_register)
@@ -1864,8 +1849,7 @@ static int v4l_dbg_g_chip_ident(const struct v4l2_ioctl_ops *ops,
p->ident = V4L2_IDENT_NONE;
p->revision = 0;
if (p->match.type == V4L2_CHIP_MATCH_SUBDEV_NAME ||
p->match.type == V4L2_CHIP_MATCH_SUBDEV_IDX)
if (p->match.type == V4L2_CHIP_MATCH_SUBDEV)
return -EINVAL;
return ops->vidioc_g_chip_ident(file, fh, p);
}
@@ -1897,19 +1881,18 @@ static int v4l_dbg_g_chip_name(const struct v4l2_ioctl_ops *ops,
strlcpy(p->name, "bridge", sizeof(p->name));
return 0;
case V4L2_CHIP_MATCH_SUBDEV_IDX:
case V4L2_CHIP_MATCH_SUBDEV_NAME:
case V4L2_CHIP_MATCH_SUBDEV:
if (vfd->v4l2_dev == NULL)
break;
v4l2_device_for_each_subdev(sd, vfd->v4l2_dev) {
if (v4l_dbg_found_match(&p->match, sd, idx++)) {
if (sd->ops->core && sd->ops->core->s_register)
p->flags |= V4L2_CHIP_FL_WRITABLE;
if (sd->ops->core && sd->ops->core->g_register)
p->flags |= V4L2_CHIP_FL_READABLE;
strlcpy(p->name, sd->name, sizeof(p->name));
return 0;
}
if (p->match.addr != idx++)
continue;
if (sd->ops->core && sd->ops->core->s_register)
p->flags |= V4L2_CHIP_FL_WRITABLE;
if (sd->ops->core && sd->ops->core->g_register)
p->flags |= V4L2_CHIP_FL_READABLE;
strlcpy(p->name, sd->name, sizeof(p->name));
return 0;
}
break;
}