From: Ondrej Zary <linux@rainbow-software.org>
To: Hans Verkuil <hverkuil@xs4all.nl>
Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 2/3] gspca_zc3xx: Fix power line frequency settings for OV7648
Date: Thu, 24 May 2018 17:09:30 +0200 [thread overview]
Message-ID: <20180524150931.26574-2-linux@rainbow-software.org> (raw)
In-Reply-To: <20180524150931.26574-1-linux@rainbow-software.org>
Power line frequency settings for OV7648 sensor contain autogain
and exposure commands, affecting unrelated controls. Remove them.
Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
---
drivers/media/usb/gspca/zc3xx.c | 17 ++++++++++-------
1 file changed, 10 insertions(+), 7 deletions(-)
diff --git a/drivers/media/usb/gspca/zc3xx.c b/drivers/media/usb/gspca/zc3xx.c
index 992918b3ad0c..9a78420e8ad8 100644
--- a/drivers/media/usb/gspca/zc3xx.c
+++ b/drivers/media/usb/gspca/zc3xx.c
@@ -3184,7 +3184,8 @@ static const struct usb_action ov7620_InitialScale[] = { /* 320x240 */
{}
};
static const struct usb_action ov7620_50HZ[] = {
- {0xaa, 0x13, 0x00a3}, /* 00,13,a3,aa */
+/* {0xaa, 0x13, 0x00a3}, * 00,13,a3,aa
+ * don't change autoexposure */
{0xdd, 0x00, 0x0100}, /* 00,01,00,dd */
{0xaa, 0x2b, 0x0096}, /* 00,2b,96,aa */
{0xaa, 0x75, 0x008a}, /* 00,75,8a,aa */
@@ -3195,15 +3196,16 @@ static const struct usb_action ov7620_50HZ[] = {
{0xa0, 0x00, ZC3XX_R195_ANTIFLICKERHIGH}, /* 01,95,00,cc */
{0xa0, 0x00, ZC3XX_R196_ANTIFLICKERMID}, /* 01,96,00,cc */
{0xa0, 0x83, ZC3XX_R197_ANTIFLICKERLOW}, /* 01,97,83,cc */
- {0xaa, 0x10, 0x0082}, /* 00,10,82,aa */
+/* {0xaa, 0x10, 0x0082}, * 00,10,82,aa
+ * don't change exposure */
{0xaa, 0x76, 0x0003}, /* 00,76,03,aa */
/* {0xa0, 0x40, ZC3XX_R002_CLOCKSELECT}, * 00,02,40,cc
* if mode0 (640x480) */
{}
};
static const struct usb_action ov7620_60HZ[] = {
- {0xaa, 0x13, 0x00a3}, /* 00,13,a3,aa */
- /* (bug in zs211.inf) */
+/* {0xaa, 0x13, 0x00a3}, * 00,13,a3,aa
+ * don't change autoexposure */
{0xdd, 0x00, 0x0100}, /* 00,01,00,dd */
{0xaa, 0x2b, 0x0000}, /* 00,2b,00,aa */
{0xaa, 0x75, 0x008a}, /* 00,75,8a,aa */
@@ -3214,7 +3216,8 @@ static const struct usb_action ov7620_60HZ[] = {
{0xa0, 0x00, ZC3XX_R195_ANTIFLICKERHIGH}, /* 01,95,00,cc */
{0xa0, 0x00, ZC3XX_R196_ANTIFLICKERMID}, /* 01,96,00,cc */
{0xa0, 0x83, ZC3XX_R197_ANTIFLICKERLOW}, /* 01,97,83,cc */
- {0xaa, 0x10, 0x0020}, /* 00,10,20,aa */
+/* {0xaa, 0x10, 0x0020}, * 00,10,20,aa
+ * don't change exposure */
{0xaa, 0x76, 0x0003}, /* 00,76,03,aa */
/* {0xa0, 0x40, ZC3XX_R002_CLOCKSELECT}, * 00,02,40,cc
* if mode0 (640x480) */
@@ -3224,8 +3227,8 @@ static const struct usb_action ov7620_60HZ[] = {
{}
};
static const struct usb_action ov7620_NoFliker[] = {
- {0xaa, 0x13, 0x00a3}, /* 00,13,a3,aa */
- /* (bug in zs211.inf) */
+/* {0xaa, 0x13, 0x00a3}, * 00,13,a3,aa
+ * don't change autoexposure */
{0xdd, 0x00, 0x0100}, /* 00,01,00,dd */
{0xaa, 0x2b, 0x0000}, /* 00,2b,00,aa */
{0xaa, 0x75, 0x008e}, /* 00,75,8e,aa */
--
Ondrej Zary
next prev parent reply other threads:[~2018-05-24 15:14 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-24 15:09 [PATCH 1/3] gspca_zc3xx: Implement proper autogain and exposure control for OV7648 Ondrej Zary
2018-05-24 15:09 ` Ondrej Zary [this message]
2018-05-25 8:13 ` [PATCH 2/3] gspca_zc3xx: Fix power line frequency settings " Hans Verkuil
2018-05-24 15:09 ` [PATCH 3/3] gspca_zc3xx: Fix exposure with power line frequency " Ondrej Zary
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