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V4L/DVB: gspca - t613: Add color controls
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- Rename controls to fit real behaviour
- Add global gain , r/b balance.

Signed-off-by: Costantino Leandro <lcostantino@gmail.com>
Signed-off-by: Jean-François Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Costantino Leandro authored and Mauro Carvalho Chehab committed May 18, 2010
1 parent 63b59ce commit be1da9e
Showing 1 changed file with 150 additions and 9 deletions.
159 changes: 150 additions & 9 deletions drivers/media/video/gspca/t613.c
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Original file line number Diff line number Diff line change
Expand Up @@ -44,7 +44,10 @@ struct sd {
u8 gamma;
u8 sharpness;
u8 freq;
u8 whitebalance;
u8 red_balance; /* split balance */
u8 blue_balance;
u8 global_gain; /* aka gain */
u8 whitebalance; /* set default r/g/b and activate */
u8 mirror;
u8 effect;

Expand All @@ -70,15 +73,25 @@ static int sd_setsharpness(struct gspca_dev *gspca_dev, __s32 val);
static int sd_getsharpness(struct gspca_dev *gspca_dev, __s32 *val);
static int sd_setfreq(struct gspca_dev *gspca_dev, __s32 val);
static int sd_getfreq(struct gspca_dev *gspca_dev, __s32 *val);


static int sd_setwhitebalance(struct gspca_dev *gspca_dev, __s32 val);
static int sd_getwhitebalance(struct gspca_dev *gspca_dev, __s32 *val);
static int sd_setblue_balance(struct gspca_dev *gspca_dev, __s32 val);
static int sd_getblue_balance(struct gspca_dev *gspca_dev, __s32 *val);
static int sd_setred_balance(struct gspca_dev *gspca_dev, __s32 val);
static int sd_getred_balance(struct gspca_dev *gspca_dev, __s32 *val);
static int sd_setglobal_gain(struct gspca_dev *gspca_dev, __s32 val);
static int sd_getglobal_gain(struct gspca_dev *gspca_dev, __s32 *val);

static int sd_setflip(struct gspca_dev *gspca_dev, __s32 val);
static int sd_getflip(struct gspca_dev *gspca_dev, __s32 *val);
static int sd_seteffect(struct gspca_dev *gspca_dev, __s32 val);
static int sd_geteffect(struct gspca_dev *gspca_dev, __s32 *val);
static int sd_querymenu(struct gspca_dev *gspca_dev,
struct v4l2_querymenu *menu);


static const struct ctrl sd_ctrls[] = {
{
{
Expand Down Expand Up @@ -139,7 +152,7 @@ static const struct ctrl sd_ctrls[] = {
},
{
{
.id = V4L2_CID_GAIN, /* here, i activate only the lowlight,
.id = V4L2_CID_BACKLIGHT_COMPENSATION, /* Activa lowlight,
* some apps dont bring up the
* backligth_compensation control) */
.type = V4L2_CTRL_TYPE_INTEGER,
Expand Down Expand Up @@ -183,7 +196,7 @@ static const struct ctrl sd_ctrls[] = {

{
{
.id = V4L2_CID_WHITE_BALANCE_TEMPERATURE,
.id = V4L2_CID_AUTO_WHITE_BALANCE,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "White Balance",
.minimum = 0,
Expand Down Expand Up @@ -223,6 +236,48 @@ static const struct ctrl sd_ctrls[] = {
.set = sd_seteffect,
.get = sd_geteffect
},
{
{
.id = V4L2_CID_BLUE_BALANCE,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Blue Balance",
.minimum = 0x10,
.maximum = 0x40,
.step = 1,
#define BLUE_BALANCE_DEF 0x20
.default_value = BLUE_BALANCE_DEF,
},
.set = sd_setblue_balance,
.get = sd_getblue_balance,
},
{
{
.id = V4L2_CID_RED_BALANCE,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Red Balance",
.minimum = 0x10,
.maximum = 0x40,
.step = 1,
#define RED_BALANCE_DEF 0x20
.default_value = RED_BALANCE_DEF,
},
.set = sd_setred_balance,
.get = sd_getred_balance,
},
{
{
.id = V4L2_CID_GAIN,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Gain",
.minimum = 0x10,
.maximum = 0x40,
.step = 1,
#define global_gain_DEF 0x20
.default_value = global_gain_DEF,
},
.set = sd_setglobal_gain,
.get = sd_getglobal_gain,
},
};

static char *effects_control[] = {
Expand Down Expand Up @@ -651,6 +706,10 @@ static int sd_config(struct gspca_dev *gspca_dev,
sd->whitebalance = WHITE_BALANCE_DEF;
sd->sharpness = SHARPNESS_DEF;
sd->effect = EFFECTS_DEF;
sd->red_balance = RED_BALANCE_DEF;
sd->blue_balance = BLUE_BALANCE_DEF;
sd->global_gain = global_gain_DEF;

return 0;
}

Expand Down Expand Up @@ -702,18 +761,40 @@ static void setgamma(struct gspca_dev *gspca_dev)
reg_w_ixbuf(gspca_dev, 0x90,
gamma_table[sd->gamma], sizeof gamma_table[0]);
}
static void setglobalgain(struct gspca_dev *gspca_dev)
{

static void setwhitebalance(struct gspca_dev *gspca_dev)
struct sd *sd = (struct sd *) gspca_dev;
reg_w(gspca_dev, (sd->red_balance << 8) + 0x87);
reg_w(gspca_dev, (sd->blue_balance << 8) + 0x88);
reg_w(gspca_dev, (sd->global_gain << 8) + 0x89);
}

/* Generic fnc for r/b balance, exposure and whitebalance */
static void setbalance(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;

u8 white_balance[8] =
{0x87, 0x20, 0x88, 0x20, 0x89, 0x20, 0x80, 0x38};
/* on whitebalance leave defaults values */
if (sd->whitebalance) {
reg_w(gspca_dev, 0x3c80);
} else {
reg_w(gspca_dev, 0x3880);
/* shoud we wait here.. */
/* update and reset 'global gain' with webcam parameters */
sd->red_balance = reg_r(gspca_dev, 0x0087);
sd->blue_balance = reg_r(gspca_dev, 0x0088);
sd->global_gain = reg_r(gspca_dev, 0x0089);
setglobalgain(gspca_dev);
}

}

if (sd->whitebalance)
white_balance[7] = 0x3c;

reg_w_buf(gspca_dev, white_balance, sizeof white_balance);

static void setwhitebalance(struct gspca_dev *gspca_dev)
{
setbalance(gspca_dev);
}

static void setsharpness(struct gspca_dev *gspca_dev)
Expand Down Expand Up @@ -1027,6 +1108,66 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev,
gspca_frame_add(gspca_dev, INTER_PACKET, data, len);
}


static int sd_setblue_balance(struct gspca_dev *gspca_dev, __s32 val)
{
struct sd *sd = (struct sd *) gspca_dev;

sd->blue_balance = val;
if (gspca_dev->streaming)
reg_w(gspca_dev, (val << 8) + 0x88);
return 0;
}

static int sd_getblue_balance(struct gspca_dev *gspca_dev, __s32 *val)
{
struct sd *sd = (struct sd *) gspca_dev;

*val = sd->blue_balance;
return 0;
}

static int sd_setred_balance(struct gspca_dev *gspca_dev, __s32 val)
{
struct sd *sd = (struct sd *) gspca_dev;

sd->red_balance = val;
if (gspca_dev->streaming)
reg_w(gspca_dev, (val << 8) + 0x87);

return 0;
}

static int sd_getred_balance(struct gspca_dev *gspca_dev, __s32 *val)
{
struct sd *sd = (struct sd *) gspca_dev;

*val = sd->red_balance;
return 0;
}



static int sd_setglobal_gain(struct gspca_dev *gspca_dev, __s32 val)
{
struct sd *sd = (struct sd *) gspca_dev;

sd->global_gain = val;
if (gspca_dev->streaming)
setglobalgain(gspca_dev);

return 0;
}

static int sd_getglobal_gain(struct gspca_dev *gspca_dev, __s32 *val)
{
struct sd *sd = (struct sd *) gspca_dev;

*val = sd->global_gain;
return 0;
}


static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val)
{
struct sd *sd = (struct sd *) gspca_dev;
Expand Down

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