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[media] gspca_pac7311: Switch to new gspca control mechanism
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Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Hans de Goede authored and Mauro Carvalho Chehab committed May 7, 2012
1 parent c894d26 commit a5340ce
Showing 1 changed file with 57 additions and 183 deletions.
240 changes: 57 additions & 183 deletions drivers/media/video/gspca/pac7311.c
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Original file line number Diff line number Diff line change
Expand Up @@ -50,20 +50,26 @@

#include <linux/input.h>
#include "gspca.h"
/* Include pac common sof detection functions */
#include "pac_common.h"

MODULE_AUTHOR("Thomas Kaiser thomas@kaiser-linux.li");
MODULE_DESCRIPTION("Pixart PAC7311");
MODULE_LICENSE("GPL");

enum e_ctrl {
CONTRAST,
GAIN,
EXPOSURE,
AUTOGAIN,
HFLIP,
VFLIP,
NCTRLS /* number of controls */
};

struct sd {
struct gspca_dev gspca_dev; /* !! must be the first item */

unsigned char contrast;
unsigned char gain;
unsigned char exposure;
unsigned char autogain;
__u8 hflip;
__u8 vflip;
struct gspca_ctrl ctrls[NCTRLS];

u8 sof_read;
u8 autogain_ignore_frames;
Expand All @@ -72,108 +78,86 @@ struct sd {
};

/* V4L2 controls supported by the driver */
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_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 int sd_setgain(struct gspca_dev *gspca_dev, __s32 val);
static int sd_getgain(struct gspca_dev *gspca_dev, __s32 *val);
static int sd_setexposure(struct gspca_dev *gspca_dev, __s32 val);
static int sd_getexposure(struct gspca_dev *gspca_dev, __s32 *val);
static void setcontrast(struct gspca_dev *gspca_dev);
static void setgain(struct gspca_dev *gspca_dev);
static void setexposure(struct gspca_dev *gspca_dev);
static void setautogain(struct gspca_dev *gspca_dev);
static void sethvflip(struct gspca_dev *gspca_dev);

static const struct ctrl sd_ctrls[] = {
{
[CONTRAST] = {
{
.id = V4L2_CID_CONTRAST,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Contrast",
.minimum = 0,
#define CONTRAST_MAX 15
.maximum = CONTRAST_MAX,
.maximum = 15,
.step = 1,
#define CONTRAST_DEF 7
.default_value = CONTRAST_DEF,
.default_value = 7,
},
.set = sd_setcontrast,
.get = sd_getcontrast,
.set_control = setcontrast
},
{
[GAIN] = {
{
.id = V4L2_CID_GAIN,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Gain",
.minimum = 0,
#define GAIN_MAX 244
.maximum = GAIN_MAX,
.maximum = 244,
.step = 1,
#define GAIN_DEF 122
#define GAIN_KNEE GAIN_MAX /* Gain seems to cause little noise on the 7311 */
.default_value = GAIN_DEF,
.default_value = 122,
#define GAIN_KNEE 244 /* Gain seems to cause little noise on the 7311 */
},
.set = sd_setgain,
.get = sd_getgain,
.set_control = setgain,
},
{
[EXPOSURE] = {
{
.id = V4L2_CID_EXPOSURE,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Exposure",
.minimum = 2,
#define EXPOSURE_MAX 63
.maximum = EXPOSURE_MAX,
.maximum = 63,
.step = 1,
#define EXPOSURE_DEF 2 /* 30 fps */
.default_value = 2, /* 30 fps */
#define EXPOSURE_KNEE 6 /* 10 fps */
.default_value = EXPOSURE_DEF,
},
.set = sd_setexposure,
.get = sd_getexposure,
.set_control = setexposure,
},
{
[AUTOGAIN] = {
{
.id = V4L2_CID_AUTOGAIN,
.type = V4L2_CTRL_TYPE_BOOLEAN,
.name = "Auto Gain",
.minimum = 0,
.maximum = 1,
.step = 1,
#define AUTOGAIN_DEF 1
.default_value = AUTOGAIN_DEF,
.default_value = 1,
},
.set = sd_setautogain,
.get = sd_getautogain,
.set_control = setautogain,
},
{
[HFLIP] = {
{
.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,
.default_value = 0,
},
.set = sd_sethflip,
.get = sd_gethflip,
.set_control = sethvflip,
},
{
[VFLIP] = {
{
.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,
.default_value = 0,
},
.set = sd_setvflip,
.get = sd_getvflip,
.set_control = sethvflip,
},
};

Expand Down Expand Up @@ -379,19 +363,13 @@ static int sd_config(struct gspca_dev *gspca_dev,
const struct usb_device_id *id)
{
struct sd *sd = (struct sd *) gspca_dev;
struct cam *cam;

cam = &gspca_dev->cam;
struct cam *cam = &gspca_dev->cam;

cam->cam_mode = vga_mode;
cam->nmodes = ARRAY_SIZE(vga_mode);

sd->contrast = CONTRAST_DEF;
sd->gain = GAIN_DEF;
sd->exposure = EXPOSURE_DEF;
sd->autogain = AUTOGAIN_DEF;
sd->hflip = HFLIP_DEF;
sd->vflip = VFLIP_DEF;
gspca_dev->cam.ctrls = sd->ctrls;

return 0;
}

Expand All @@ -400,7 +378,7 @@ static void setcontrast(struct gspca_dev *gspca_dev)
struct sd *sd = (struct sd *) gspca_dev;

reg_w(gspca_dev, 0xff, 0x04);
reg_w(gspca_dev, 0x10, sd->contrast);
reg_w(gspca_dev, 0x10, sd->ctrls[CONTRAST].val);
/* load registers to sensor (Bit 0, auto clear) */
reg_w(gspca_dev, 0x11, 0x01);
}
Expand All @@ -411,7 +389,7 @@ static void setgain(struct gspca_dev *gspca_dev)

reg_w(gspca_dev, 0xff, 0x04); /* page 4 */
reg_w(gspca_dev, 0x0e, 0x00);
reg_w(gspca_dev, 0x0f, GAIN_MAX - sd->gain + 1);
reg_w(gspca_dev, 0x0f, sd->ctrls[GAIN].max - sd->ctrls[GAIN].val + 1);

/* load registers to sensor (Bit 0, auto clear) */
reg_w(gspca_dev, 0x11, 0x01);
Expand All @@ -422,7 +400,7 @@ static void setexposure(struct gspca_dev *gspca_dev)
struct sd *sd = (struct sd *) gspca_dev;

reg_w(gspca_dev, 0xff, 0x04); /* page 4 */
reg_w(gspca_dev, 0x02, sd->exposure);
reg_w(gspca_dev, 0x02, sd->ctrls[EXPOSURE].val);

/* load registers to sensor (Bit 0, auto clear) */
reg_w(gspca_dev, 0x11, 0x01);
Expand All @@ -431,7 +409,7 @@ static void setexposure(struct gspca_dev *gspca_dev)
640x480 mode and page 4 reg 2 <= 3 then it must be 9 */
reg_w(gspca_dev, 0xff, 0x01);
if (gspca_dev->cam.cam_mode[(int)gspca_dev->curr_mode].priv &&
sd->exposure <= 3) {
sd->ctrls[EXPOSURE].val <= 3) {
reg_w(gspca_dev, 0x08, 0x09);
} else {
reg_w(gspca_dev, 0x08, 0x08);
Expand All @@ -447,7 +425,8 @@ static void sethvflip(struct gspca_dev *gspca_dev)
__u8 data;

reg_w(gspca_dev, 0xff, 0x04); /* page 4 */
data = (sd->hflip ? 0x04 : 0x00) | (sd->vflip ? 0x08 : 0x00);
data = (sd->ctrls[HFLIP].val ? 0x04 : 0x00) |
(sd->ctrls[VFLIP].val ? 0x08 : 0x00);
reg_w(gspca_dev, 0x21, data);

/* load registers to sensor (Bit 0, auto clear) */
Expand Down Expand Up @@ -518,24 +497,24 @@ static void sd_stopN(struct gspca_dev *gspca_dev)
reg_w(gspca_dev, 0x78, 0x44); /* Bit_0=start stream, Bit_6=LED */
}

/* Include pac common sof detection functions */
#include "pac_common.h"
#define WANT_REGULAR_AUTOGAIN
#include "autogain_functions.h"

static void do_autogain(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
int avg_lum = atomic_read(&sd->avg_lum);
int desired_lum, deadzone;

if (avg_lum == -1)
if (sd->ctrls[AUTOGAIN].val == 0 || avg_lum == -1)
return;

desired_lum = 200;
deadzone = 20;

if (sd->autogain_ignore_frames > 0)
sd->autogain_ignore_frames--;
else if (gspca_auto_gain_n_exposure(gspca_dev, avg_lum, desired_lum,
else if (auto_gain_n_exposure(gspca_dev, avg_lum, desired_lum,
deadzone, GAIN_KNEE, EXPOSURE_KNEE))
sd->autogain_ignore_frames = PAC_AUTOGAIN_IGNORE_FRAMES;
}
Expand Down Expand Up @@ -640,125 +619,20 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev,
gspca_frame_add(gspca_dev, INTER_PACKET, data, len);
}

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

sd->contrast = val;
if (gspca_dev->streaming)
setcontrast(gspca_dev);
return gspca_dev->usb_err;
}

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

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

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

sd->gain = val;
if (gspca_dev->streaming)
setgain(gspca_dev);
return gspca_dev->usb_err;
}

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

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

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

sd->exposure = val;
if (gspca_dev->streaming)
setexposure(gspca_dev);
return gspca_dev->usb_err;
}

static int sd_getexposure(struct gspca_dev *gspca_dev, __s32 *val)
static void setautogain(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;

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

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

sd->autogain = val;
/* when switching to autogain set defaults to make sure
we are on a valid point of the autogain gain /
exposure knee graph, and give this change time to
take effect before doing autogain. */
if (sd->autogain) {
sd->exposure = EXPOSURE_DEF;
sd->gain = GAIN_DEF;
if (sd->ctrls[AUTOGAIN].val) {
sd->ctrls[EXPOSURE].val = 2;
sd->ctrls[GAIN].val = 122;
if (gspca_dev->streaming) {
sd->autogain_ignore_frames =
PAC_AUTOGAIN_IGNORE_FRAMES;
setexposure(gspca_dev);
setgain(gspca_dev);
}
}

return gspca_dev->usb_err;
}

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

*val = sd->autogain;
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 gspca_dev->usb_err;
}

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 gspca_dev->usb_err;
}

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

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

#if defined(CONFIG_INPUT) || defined(CONFIG_INPUT_MODULE)
Expand Down

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