From 0cd6759da646aae9d117df278ce3d5f3cab31904 Mon Sep 17 00:00:00 2001
From: Jean-Francois Moine <moinejf@free.fr>
Date: Tue, 29 Jul 2008 05:25:28 -0300
Subject: [PATCH] V4L/DVB (8567): gspca: hflip and vflip controls added for
ov519 - ov7670 plus init cleanup.
The hflip and vflip controls work for ov7670 only.
This bridge/sensor inverts blue and red - not fixed.
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
---
drivers/media/video/gspca/ov519.c | 114 +++++++++++++++++++++++++-----
1 file changed, 98 insertions(+), 16 deletions(-)
diff --git a/drivers/media/video/gspca/ov519.c b/drivers/media/video/gspca/ov519.c
index 83139efc46293..b825941089b46 100644
--- a/drivers/media/video/gspca/ov519.c
+++ b/drivers/media/video/gspca/ov519.c
@@ -48,6 +48,8 @@ struct sd {
unsigned char brightness;
unsigned char contrast;
unsigned char colors;
+ __u8 hflip;
+ __u8 vflip;
char compress; /* Should the next frame be compressed? */
char compress_inited; /* Are compression params uploaded? */
@@ -77,6 +79,10 @@ static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val);
static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val);
static int sd_setcolors(struct gspca_dev *gspca_dev, __s32 val);
static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val);
+static int sd_sethflip(struct gspca_dev *gspca_dev, __s32 val);
+static int sd_gethflip(struct gspca_dev *gspca_dev, __s32 *val);
+static int sd_setvflip(struct gspca_dev *gspca_dev, __s32 val);
+static int sd_getvflip(struct gspca_dev *gspca_dev, __s32 *val);
static struct ctrl sd_ctrls[] = {
#define SD_BRIGHTNESS 0
@@ -121,6 +127,35 @@ static struct ctrl sd_ctrls[] = {
.set = sd_setcolors,
.get = sd_getcolors,
},
+/* next controls work with ov7670 only */
+ {
+ {
+ .id = V4L2_CID_HFLIP,
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ .name = "Mirror",
+ .minimum = 0,
+ .maximum = 1,
+ .step = 1,
+#define HFLIP_DEF 0
+ .default_value = HFLIP_DEF,
+ },
+ .set = sd_sethflip,
+ .get = sd_gethflip,
+ },
+ {
+ {
+ .id = V4L2_CID_VFLIP,
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ .name = "Vflip",
+ .minimum = 0,
+ .maximum = 1,
+ .step = 1,
+#define VFLIP_DEF 0
+ .default_value = VFLIP_DEF,
+ },
+ .set = sd_setvflip,
+ .get = sd_getvflip,
+ },
};
static struct v4l2_pix_format vga_mode[] = {
@@ -225,6 +260,7 @@ static struct v4l2_pix_format sif_mode[] = {
#define OV7670_REG_VSTART 0x19 /* Vert start high bits */
#define OV7670_REG_VSTOP 0x1a /* Vert stop high bits */
#define OV7670_REG_MVFP 0x1e /* Mirror / vflip */
+#define OV7670_MVFP_VFLIP 0x10 /* vertical flip */
#define OV7670_MVFP_MIRROR 0x20 /* Mirror image */
#define OV7670_REG_AEW 0x24 /* AGC upper limit */
#define OV7670_REG_AEB 0x25 /* AGC lower limit */
@@ -930,7 +966,10 @@ static int ov7xx0_configure(struct sd *sd)
{ OV7670_REG_EDGE, 0 },
{ 0x75, 0x05 }, { 0x76, 0xe1 },
{ 0x4c, 0 }, { 0x77, 0x01 },
- { OV7670_REG_COM13, 0xc3 }, { 0x4b, 0x09 },
+ { OV7670_REG_COM13, OV7670_COM13_GAMMA
+ | OV7670_COM13_UVSAT
+ | 2}, /* was 3 */
+ { 0x4b, 0x09 },
{ 0xc9, 0x60 }, { OV7670_REG_COM16, 0x38 },
{ 0x56, 0x40 },
@@ -957,19 +996,6 @@ static int ov7xx0_configure(struct sd *sd)
{ 0x79, 0x05 }, { 0xc8, 0x30 },
{ 0x79, 0x26 },
- /* Format YUV422 */
- { OV7670_REG_COM7, OV7670_COM7_YUV }, /* Selects YUV mode */
- { OV7670_REG_RGB444, 0 }, /* No RGB444 please */
- { OV7670_REG_COM1, 0 },
- { OV7670_REG_COM15, OV7670_COM15_R00FF },
- { OV7670_REG_COM9, 0x18 },
- /* 4x gain ceiling; 0x8 is reserved bit */
- { 0x4f, 0x80 }, /* "matrix coefficient 1" */
- { 0x50, 0x80 }, /* "matrix coefficient 2" */
- { 0x52, 0x22 }, /* "matrix coefficient 4" */
- { 0x53, 0x5e }, /* "matrix coefficient 5" */
- { 0x54, 0x80 }, /* "matrix coefficient 6" */
- { OV7670_REG_COM13, OV7670_COM13_GAMMA|OV7670_COM13_UVSAT },
};
PDEBUG(D_PROBE, "starting OV7xx0 configuration");
@@ -1375,6 +1401,8 @@ static int sd_config(struct gspca_dev *gspca_dev,
sd->brightness = sd_ctrls[SD_BRIGHTNESS].qctrl.default_value;
sd->contrast = sd_ctrls[SD_CONTRAST].qctrl.default_value;
sd->colors = sd_ctrls[SD_COLOR].qctrl.default_value;
+ sd->hflip = HFLIP_DEF;
+ sd->vflip = VFLIP_DEF;
return 0;
error:
PDEBUG(D_ERR, "OV519 Config failed");
@@ -1682,6 +1710,26 @@ static int mode_init_ov_sensor_regs(struct sd *sd,
return 0;
}
+static void sethflip(struct sd *sd)
+{
+ if (sd->gspca_dev.streaming)
+ ov51x_stop(sd);
+ i2c_w_mask(sd, OV7670_REG_MVFP,
+ OV7670_MVFP_MIRROR * sd->hflip, OV7670_MVFP_MIRROR);
+ if (sd->gspca_dev.streaming)
+ ov51x_restart(sd);
+}
+
+static void setvflip(struct sd *sd)
+{
+ if (sd->gspca_dev.streaming)
+ ov51x_stop(sd);
+ i2c_w_mask(sd, OV7670_REG_MVFP,
+ OV7670_MVFP_VFLIP * sd->vflip, OV7670_MVFP_VFLIP);
+ if (sd->gspca_dev.streaming)
+ ov51x_restart(sd);
+}
+
static int set_ov_sensor_window(struct sd *sd,
struct ovsensor_window *win)
{
@@ -1811,7 +1859,8 @@ static int set_ov_sensor_window(struct sd *sd,
msleep(10); /* need to sleep between read and write to
* same reg! */
i2c_w(sd, OV7670_REG_VREF, v);
-
+ sethflip(sd);
+ setvflip(sd);
} else {
i2c_w(sd, 0x17, hwsbase + (win->x >> hwscale));
i2c_w(sd, 0x18, hwebase + ((win->x + win->width) >> hwscale));
@@ -2110,6 +2159,40 @@ static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val)
return 0;
}
+static int sd_sethflip(struct gspca_dev *gspca_dev, __s32 val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ sd->hflip = val;
+ sethflip(sd);
+ return 0;
+}
+
+static int sd_gethflip(struct gspca_dev *gspca_dev, __s32 *val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ *val = sd->hflip;
+ return 0;
+}
+
+static int sd_setvflip(struct gspca_dev *gspca_dev, __s32 val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ sd->vflip = val;
+ setvflip(sd);
+ return 0;
+}
+
+static int sd_getvflip(struct gspca_dev *gspca_dev, __s32 *val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ *val = sd->vflip;
+ return 0;
+}
+
/* sub-driver description */
static const struct sd_desc sd_desc = {
.name = MODULE_NAME,
@@ -2178,4 +2261,3 @@ module_exit(sd_mod_exit);
module_param(frame_rate, int, 0644);
MODULE_PARM_DESC(frame_rate, "Frame rate (5, 10, 15, 20 or 30 fps)");
-
--
2.30.2