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V4L/DVB (8707): gspca: Colors, hflip and vflip controls added for pac7302. 

Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Jean-Francois Moine 2008-09-03 16:47:58 -03:00 committed by Mauro Carvalho Chehab
parent dff6d321d4
commit 41b469745f
1 changed files with 105 additions and 2 deletions
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107
drivers/media/video/gspca/pac7311.c
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@ -40,6 +40,8 @@ struct sd {
unsigned char contrast;
unsigned char colors;
unsigned char autogain;
__u8 hflip;
__u8 vflip;
char tosof; /* number of bytes before next start of frame */
signed char ag_cnt;
@ -59,6 +61,10 @@ 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_setautogain(struct gspca_dev *gspca_dev, __s32 val);
static int sd_getautogain(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[] = {
{
@ -97,7 +103,8 @@ static struct ctrl sd_ctrls[] = {
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Saturation",
.minimum = 0,
.maximum = 255,
#define COLOR_MAX 255
.maximum = COLOR_MAX,
.step = 1,
#define COLOR_DEF 127
.default_value = COLOR_DEF,
@ -119,6 +126,35 @@ static struct ctrl sd_ctrls[] = {
.set = sd_setautogain,
.get = sd_getautogain,
},
/* next controls work with pac7302 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[] = {
@ -493,8 +529,25 @@ static void setcolors(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
if (sd->sensor == SENSOR_PAC7302)
if (sd->sensor == SENSOR_PAC7302) {
int i, v;
static const int a[9] =
{217, -212, 0, -101, 170, -67, -38, -315, 355};
static const int b[9] =
{19, 106, 0, 19, 106, 1, 19, 106, 1};
reg_w(gspca_dev, 0xff, 0x03); /* page 3 */
reg_w(gspca_dev, 0x11, 0x01);
reg_w(gspca_dev, 0xff, 0x00); /* page 0 */
reg_w(gspca_dev, 0xff, 0x00); /* page 0 */
for (i = 0; i < 9; i++) {
v = a[i] * sd->colors / COLOR_MAX + b[i];
reg_w(gspca_dev, 0x0f + 2 * i, (v >> 8) & 0x07);
reg_w(gspca_dev, 0x0f + 2 * i + 1, v);
}
reg_w(gspca_dev, 0xdc, 0x01);
return;
}
reg_w(gspca_dev, 0xff, 0x01);
reg_w(gspca_dev, 0x10, sd->colors);
/* load registers to sensor (Bit 0, auto clear) */
@ -514,6 +567,19 @@ static void setautogain(struct gspca_dev *gspca_dev)
}
}
/* this function is used by pac7302 only */
static void sethvflip(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
__u8 data;
reg_w(gspca_dev, 0xff, 0x03); /* page 3 */
data = (sd->hflip ? 0x00 : 0x08)
| (sd->vflip ? 0x04 : 0x00);
reg_w(gspca_dev, 0x21, data);
reg_w(gspca_dev, 0x11, 0x01);
}
/* this function is called at open time */
static int sd_open(struct gspca_dev *gspca_dev)
{
@ -574,6 +640,7 @@ static void sd_start(struct gspca_dev *gspca_dev)
/* start stream */
reg_w(gspca_dev, 0xff, 0x01);
if (sd->sensor == SENSOR_PAC7302) {
sethvflip(gspca_dev);
reg_w(gspca_dev, 0x78, 0x01);
reg_w(gspca_dev, 0xff, 0x01);
reg_w(gspca_dev, 0x78, 0x01);
@ -790,6 +857,42 @@ static int sd_getautogain(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;
if (gspca_dev->streaming)
sethvflip(gspca_dev);
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;
if (gspca_dev->streaming)
sethvflip(gspca_dev);
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 struct sd_desc sd_desc = {
.name = MODULE_NAME,