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[media] m5mols: Add ISO sensitivity controls

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Add controls for manual/auto ISO sensitivity.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Sylwester Nawrocki 2012-04-09 13:19:25 -03:00 committed by Mauro Carvalho Chehab
parent 0373e97496
commit 44b153ca63
2 changed files with 63 additions and 0 deletions
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7
drivers/media/video/m5mols/m5mols.h
View File

@ -162,6 +162,8 @@ struct m5mols_version {
* @handle: control handler
* @auto_exposure: auto/manual exposure control
* @exposure: manual exposure control
* @auto_iso: auto/manual ISO sensitivity control
* @iso: manual ISO sensitivity control
* @autowb: Auto White Balance control
* @colorfx: color effect control
* @saturation: saturation control
@ -193,6 +195,11 @@ struct m5mols_info {
struct v4l2_ctrl *auto_exposure;
struct v4l2_ctrl *exposure;
};
struct {
/* iso/auto iso cluster */
struct v4l2_ctrl *auto_iso;
struct v4l2_ctrl *iso;
};
struct v4l2_ctrl *auto_wb;
struct v4l2_ctrl *colorfx;

56
drivers/media/video/m5mols/m5mols_controls.c
View File

@ -319,6 +319,39 @@ static int m5mols_set_color_effect(struct m5mols_info *info, int val)
return ret;
}
static int m5mols_set_iso(struct m5mols_info *info, int auto_iso)
{
u32 iso = auto_iso ? 0 : info->iso->val + 1;
return m5mols_write(&info->sd, AE_ISO, iso);
}
static int m5mols_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
{
struct v4l2_subdev *sd = to_sd(ctrl);
struct m5mols_info *info = to_m5mols(sd);
int ret = 0;
u8 status;
v4l2_dbg(1, m5mols_debug, sd, "%s: ctrl: %s (%d)\n",
__func__, ctrl->name, info->isp_ready);
if (!info->isp_ready)
return -EBUSY;
switch (ctrl->id) {
case V4L2_CID_ISO_SENSITIVITY_AUTO:
ret = m5mols_read_u8(sd, AE_ISO, &status);
if (ret == 0)
ctrl->val = !status;
if (status != REG_ISO_AUTO)
info->iso->val = status - 1;
break;
}
return ret;
}
static int m5mols_s_ctrl(struct v4l2_ctrl *ctrl)
{
unsigned int ctrl_mode = m5mols_get_ctrl_mode(ctrl);
@ -354,6 +387,10 @@ static int m5mols_s_ctrl(struct v4l2_ctrl *ctrl)
ret = m5mols_set_exposure(info, ctrl->val);
break;
case V4L2_CID_ISO_SENSITIVITY:
ret = m5mols_set_iso(info, ctrl->val);
break;
case V4L2_CID_AUTO_WHITE_BALANCE:
ret = m5mols_set_white_balance(info, ctrl->val);
break;
@ -374,9 +411,16 @@ static int m5mols_s_ctrl(struct v4l2_ctrl *ctrl)
}
static const struct v4l2_ctrl_ops m5mols_ctrl_ops = {
.g_volatile_ctrl = m5mols_g_volatile_ctrl,
.s_ctrl = m5mols_s_ctrl,
};
/* Supported manual ISO values */
static const s64 iso_qmenu[] = {
/* AE_ISO: 0x01...0x07 */
50, 100, 200, 400, 800, 1600, 3200
};
int m5mols_init_controls(struct v4l2_subdev *sd)
{
struct m5mols_info *info = to_m5mols(sd);
@ -404,6 +448,14 @@ int m5mols_init_controls(struct v4l2_subdev *sd)
&m5mols_ctrl_ops, V4L2_CID_EXPOSURE,
0, exposure_max, 1, exposure_max / 2);
/* ISO control cluster */
info->auto_iso = v4l2_ctrl_new_std_menu(&info->handle, &m5mols_ctrl_ops,
V4L2_CID_ISO_SENSITIVITY_AUTO, 1, ~0x03, 1);
info->iso = v4l2_ctrl_new_int_menu(&info->handle, &m5mols_ctrl_ops,
V4L2_CID_ISO_SENSITIVITY, ARRAY_SIZE(iso_qmenu) - 1,
ARRAY_SIZE(iso_qmenu)/2 - 1, iso_qmenu);
info->saturation = v4l2_ctrl_new_std(&info->handle, &m5mols_ctrl_ops,
V4L2_CID_SATURATION, 1, 5, 1, 3);
@ -422,6 +474,10 @@ int m5mols_init_controls(struct v4l2_subdev *sd)
v4l2_ctrl_auto_cluster(2, &info->auto_exposure, 1, false);
info->auto_iso->flags |= V4L2_CTRL_FLAG_VOLATILE |
V4L2_CTRL_FLAG_UPDATE;
v4l2_ctrl_auto_cluster(2, &info->auto_iso, 0, false);
m5mols_set_ctrl_mode(info->auto_exposure, REG_PARAMETER);
m5mols_set_ctrl_mode(info->auto_wb, REG_PARAMETER);
m5mols_set_ctrl_mode(info->colorfx, REG_MONITOR);