[media] pwc: switch to the new auto-cluster volatile handling
Now that the auto cluster core changed to a different scheme of how to
handle volatile controls (including how to switch from auto to manual mode)
the pwc code can be simplified to use that new core support.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/video/pwc/pwc-v4l.c b/drivers/media/video/pwc/pwc-v4l.c
index 6873bf5..0a41ebb 100644
--- a/drivers/media/video/pwc/pwc-v4l.c
+++ b/drivers/media/video/pwc/pwc-v4l.c
@@ -83,6 +83,7 @@
.id = PWC_CID_CUSTOM(contour),
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Contour",
+ .flags = V4L2_CTRL_FLAG_SLIDER,
.min = 0,
.max = 63,
.step = 1,
@@ -206,8 +207,7 @@
pdev->blue_balance = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops,
V4L2_CID_BLUE_BALANCE, 0, 255, 1, def);
- v4l2_ctrl_auto_cluster(3, &pdev->auto_white_balance, awb_manual,
- pdev->auto_white_balance->cur.val == awb_auto);
+ v4l2_ctrl_auto_cluster(3, &pdev->auto_white_balance, awb_manual, true);
/* autogain, gain */
r = pwc_get_u8_ctrl(pdev, GET_LUM_CTL, AGC_MODE_FORMATTER, &def);
@@ -331,12 +331,12 @@
pdev->restore_user = v4l2_ctrl_new_custom(hdl, &pwc_restore_user_cfg,
NULL);
if (pdev->restore_user)
- pdev->restore_user->flags = V4L2_CTRL_FLAG_UPDATE;
+ pdev->restore_user->flags |= V4L2_CTRL_FLAG_UPDATE;
pdev->restore_factory = v4l2_ctrl_new_custom(hdl,
&pwc_restore_factory_cfg,
NULL);
if (pdev->restore_factory)
- pdev->restore_factory->flags = V4L2_CTRL_FLAG_UPDATE;
+ pdev->restore_factory->flags |= V4L2_CTRL_FLAG_UPDATE;
if (!(pdev->features & FEATURE_MOTOR_PANTILT))
return hdl->error;
@@ -563,8 +563,10 @@
switch (ctrl->id) {
case V4L2_CID_AUTO_WHITE_BALANCE:
- if (pdev->color_bal_valid && time_before(jiffies,
- pdev->last_color_bal_update + HZ / 4)) {
+ if (pdev->color_bal_valid &&
+ (pdev->auto_white_balance->val != awb_auto ||
+ time_before(jiffies,
+ pdev->last_color_bal_update + HZ / 4))) {
pdev->red_balance->val = pdev->last_red_balance;
pdev->blue_balance->val = pdev->last_blue_balance;
break;
@@ -630,7 +632,7 @@
static int pwc_set_awb(struct pwc_device *pdev)
{
- int ret = 0;
+ int ret;
if (pdev->auto_white_balance->is_new) {
ret = pwc_set_u8_ctrl(pdev, SET_CHROM_CTL,
@@ -639,52 +641,34 @@
if (ret)
return ret;
- /* Update val when coming from auto or going to a preset */
- if ((pdev->red_balance->flags & V4L2_CTRL_FLAG_VOLATILE) ||
- pdev->auto_white_balance->val == awb_indoor ||
- pdev->auto_white_balance->val == awb_outdoor ||
- pdev->auto_white_balance->val == awb_fl) {
- if (!pdev->red_balance->is_new)
- pwc_get_u8_ctrl(pdev, GET_STATUS_CTL,
- READ_RED_GAIN_FORMATTER,
- &pdev->red_balance->val);
- if (!pdev->blue_balance->is_new)
- pwc_get_u8_ctrl(pdev, GET_STATUS_CTL,
- READ_BLUE_GAIN_FORMATTER,
- &pdev->blue_balance->val);
- }
- if (pdev->auto_white_balance->val == awb_auto) {
- pdev->red_balance->flags |= V4L2_CTRL_FLAG_VOLATILE;
- pdev->blue_balance->flags |= V4L2_CTRL_FLAG_VOLATILE;
- pdev->color_bal_valid = false; /* Force cache update */
- } else {
- pdev->red_balance->flags &= ~V4L2_CTRL_FLAG_VOLATILE;
- pdev->blue_balance->flags &= ~V4L2_CTRL_FLAG_VOLATILE;
- }
- }
-
- if (ret == 0 && pdev->red_balance->is_new) {
if (pdev->auto_white_balance->val != awb_manual)
- return -EBUSY;
+ pdev->color_bal_valid = false; /* Force cache update */
+ }
+ if (pdev->auto_white_balance->val != awb_manual)
+ return 0;
+
+ if (pdev->red_balance->is_new) {
ret = pwc_set_u8_ctrl(pdev, SET_CHROM_CTL,
PRESET_MANUAL_RED_GAIN_FORMATTER,
pdev->red_balance->val);
+ if (ret)
+ return ret;
}
- if (ret == 0 && pdev->blue_balance->is_new) {
- if (pdev->auto_white_balance->val != awb_manual)
- return -EBUSY;
+ if (pdev->blue_balance->is_new) {
ret = pwc_set_u8_ctrl(pdev, SET_CHROM_CTL,
PRESET_MANUAL_BLUE_GAIN_FORMATTER,
pdev->blue_balance->val);
+ if (ret)
+ return ret;
}
- return ret;
+ return 0;
}
/* For CODEC2 models which have separate autogain and auto exposure */
static int pwc_set_autogain(struct pwc_device *pdev)
{
- int ret = 0;
+ int ret;
if (pdev->autogain->is_new) {
ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL,
@@ -692,27 +676,28 @@
pdev->autogain->val ? 0 : 0xff);
if (ret)
return ret;
+
if (pdev->autogain->val)
pdev->gain_valid = false; /* Force cache update */
- else if (!pdev->gain->is_new)
- pwc_get_u8_ctrl(pdev, GET_STATUS_CTL,
- READ_AGC_FORMATTER,
- &pdev->gain->val);
}
- if (ret == 0 && pdev->gain->is_new) {
- if (pdev->autogain->val)
- return -EBUSY;
+
+ if (pdev->autogain->val)
+ return 0;
+
+ if (pdev->gain->is_new) {
ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL,
PRESET_AGC_FORMATTER,
pdev->gain->val);
+ if (ret)
+ return ret;
}
- return ret;
+ return 0;
}
/* For CODEC2 models which have separate autogain and auto exposure */
static int pwc_set_exposure_auto(struct pwc_device *pdev)
{
- int ret = 0;
+ int ret;
int is_auto = pdev->exposure_auto->val == V4L2_EXPOSURE_AUTO;
if (pdev->exposure_auto->is_new) {
@@ -721,27 +706,28 @@
is_auto ? 0 : 0xff);
if (ret)
return ret;
+
if (is_auto)
pdev->exposure_valid = false; /* Force cache update */
- else if (!pdev->exposure->is_new)
- pwc_get_u16_ctrl(pdev, GET_STATUS_CTL,
- READ_SHUTTER_FORMATTER,
- &pdev->exposure->val);
}
- if (ret == 0 && pdev->exposure->is_new) {
- if (is_auto)
- return -EBUSY;
+
+ if (is_auto)
+ return 0;
+
+ if (pdev->exposure->is_new) {
ret = pwc_set_u16_ctrl(pdev, SET_LUM_CTL,
PRESET_SHUTTER_FORMATTER,
pdev->exposure->val);
+ if (ret)
+ return ret;
}
- return ret;
+ return 0;
}
/* For CODEC3 models which have autogain controlling both gain and exposure */
static int pwc_set_autogain_expo(struct pwc_device *pdev)
{
- int ret = 0;
+ int ret;
if (pdev->autogain->is_new) {
ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL,
@@ -749,35 +735,32 @@
pdev->autogain->val ? 0 : 0xff);
if (ret)
return ret;
+
if (pdev->autogain->val) {
pdev->gain_valid = false; /* Force cache update */
pdev->exposure_valid = false; /* Force cache update */
- } else {
- if (!pdev->gain->is_new)
- pwc_get_u8_ctrl(pdev, GET_STATUS_CTL,
- READ_AGC_FORMATTER,
- &pdev->gain->val);
- if (!pdev->exposure->is_new)
- pwc_get_u16_ctrl(pdev, GET_STATUS_CTL,
- READ_SHUTTER_FORMATTER,
- &pdev->exposure->val);
}
}
- if (ret == 0 && pdev->gain->is_new) {
- if (pdev->autogain->val)
- return -EBUSY;
+
+ if (pdev->autogain->val)
+ return 0;
+
+ if (pdev->gain->is_new) {
ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL,
PRESET_AGC_FORMATTER,
pdev->gain->val);
+ if (ret)
+ return ret;
}
- if (ret == 0 && pdev->exposure->is_new) {
- if (pdev->autogain->val)
- return -EBUSY;
+
+ if (pdev->exposure->is_new) {
ret = pwc_set_u16_ctrl(pdev, SET_LUM_CTL,
PRESET_SHUTTER_FORMATTER,
pdev->exposure->val);
+ if (ret)
+ return ret;
}
- return ret;
+ return 0;
}
static int pwc_set_motor(struct pwc_device *pdev)
@@ -878,10 +861,6 @@
pdev->autocontour->val ? 0 : 0xff);
}
if (ret == 0 && pdev->contour->is_new) {
- if (pdev->autocontour->val) {
- ret = -EBUSY;
- break;
- }
ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL,
PRESET_CONTOUR_FORMATTER,
pdev->contour->val);