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path: root/drivers/media/platform/atmel/atmel-isc-base.c
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Diffstat (limited to 'drivers/media/platform/atmel/atmel-isc-base.c')
-rw-r--r--drivers/media/platform/atmel/atmel-isc-base.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/media/platform/atmel/atmel-isc-base.c b/drivers/media/platform/atmel/atmel-isc-base.c
index 3a9e04741960..d92ffc07418f 100644
--- a/drivers/media/platform/atmel/atmel-isc-base.c
+++ b/drivers/media/platform/atmel/atmel-isc-base.c
@@ -1289,10 +1289,15 @@ static void isc_hist_count(struct isc_device *isc, u32 *min, u32 *max)
if (!*min)
*min = 1;
+
+ v4l2_dbg(1, debug, &isc->v4l2_dev,
+ "isc wb: hist_id %u, hist_count %u",
+ ctrls->hist_id, *hist_count);
}
static void isc_wb_update(struct isc_ctrls *ctrls)
{
+ struct isc_device *isc = container_of(ctrls, struct isc_device, ctrls);
u32 *hist_count = &ctrls->hist_count[0];
u32 c, offset[4];
u64 avg = 0;
@@ -1309,6 +1314,9 @@ static void isc_wb_update(struct isc_ctrls *ctrls)
(u64)hist_count[ISC_HIS_CFG_MODE_GB];
avg >>= 1;
+ v4l2_dbg(1, debug, &isc->v4l2_dev,
+ "isc wb: green components average %llu\n", avg);
+
/* Green histogram is null, nothing to do */
if (!avg)
return;
@@ -1361,9 +1369,15 @@ static void isc_wb_update(struct isc_ctrls *ctrls)
else
gw_gain[c] = 1 << 9;
+ v4l2_dbg(1, debug, &isc->v4l2_dev,
+ "isc wb: component %d, s_gain %u, gw_gain %u\n",
+ c, s_gain[c], gw_gain[c]);
/* multiply both gains and adjust for decimals */
ctrls->gain[c] = s_gain[c] * gw_gain[c];
ctrls->gain[c] >>= 9;
+ v4l2_dbg(1, debug, &isc->v4l2_dev,
+ "isc wb: component %d, final gain %u\n",
+ c, ctrls->gain[c]);
}
}
@@ -1387,6 +1401,10 @@ static void isc_awb_work(struct work_struct *w)
return;
isc_hist_count(isc, &min, &max);
+
+ v4l2_dbg(1, debug, &isc->v4l2_dev,
+ "isc wb mode %d: hist min %u , max %u\n", hist_id, min, max);
+
ctrls->hist_minmax[hist_id][HIST_MIN_INDEX] = min;
ctrls->hist_minmax[hist_id][HIST_MAX_INDEX] = max;