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Commit 9bf0c43e authored by Hans Verkuil's avatar Hans Verkuil Committed by Mauro Carvalho Chehab
Browse files

[media] spca500: convert to the control framework 



Signed-off-by: default avatarHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: default avatarHans de Goede <hdegoede@redhat.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent 6e937b7f

drivers/media/video/gspca/spca500.c

+63 −135
Original line number Diff line number Diff line
@@ -34,10 +34,7 @@ MODULE_LICENSE("GPL"); 
struct sd {

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



	unsigned char brightness;

	unsigned char contrast;

	unsigned char colors;

	u8 quality;

	struct v4l2_ctrl *jpegqual;

#define QUALITY_MIN 70

#define QUALITY_MAX 95

#define QUALITY_DEF 85
@@ -62,59 +59,6 @@ struct sd { 
	u8 jpeg_hdr[JPEG_HDR_SZ];

};



/* V4L2 controls supported by the driver */

static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val);

static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val);

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 const struct ctrl sd_ctrls[] = {

	{

	    {

		.id      = V4L2_CID_BRIGHTNESS,

		.type    = V4L2_CTRL_TYPE_INTEGER,

		.name    = "Brightness",

		.minimum = 0,

		.maximum = 255,

		.step    = 1,

#define BRIGHTNESS_DEF 127

		.default_value = BRIGHTNESS_DEF,

	    },

	    .set = sd_setbrightness,

	    .get = sd_getbrightness,

	},

	{

	    {

		.id      = V4L2_CID_CONTRAST,

		.type    = V4L2_CTRL_TYPE_INTEGER,

		.name    = "Contrast",

		.minimum = 0,

		.maximum = 63,

		.step    = 1,

#define CONTRAST_DEF 31

		.default_value = CONTRAST_DEF,

	    },

	    .set = sd_setcontrast,

	    .get = sd_getcontrast,

	},

	{

	    {

		.id      = V4L2_CID_SATURATION,

		.type    = V4L2_CTRL_TYPE_INTEGER,

		.name    = "Color",

		.minimum = 0,

		.maximum = 63,

		.step    = 1,

#define COLOR_DEF 31

		.default_value = COLOR_DEF,

	    },

	    .set = sd_setcolors,

	    .get = sd_getcolors,

	},

};



static const struct v4l2_pix_format vga_mode[] = {

	{320, 240, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,

		.bytesperline = 320,
@@ -641,10 +585,6 @@ static int sd_config(struct gspca_dev *gspca_dev, 
		cam->cam_mode = sif_mode;

		cam->nmodes = ARRAY_SIZE(sif_mode);

	}

	sd->brightness = BRIGHTNESS_DEF;

	sd->contrast = CONTRAST_DEF;

	sd->colors = COLOR_DEF;

	sd->quality = QUALITY_DEF;

	return 0;

}
@@ -673,7 +613,7 @@ static int sd_start(struct gspca_dev *gspca_dev) 
	/* create the JPEG header */

	jpeg_define(sd->jpeg_hdr, gspca_dev->height, gspca_dev->width,

			0x22);		/* JPEG 411 */

	jpeg_set_qual(sd->jpeg_hdr, sd->quality);

	jpeg_set_qual(sd->jpeg_hdr, v4l2_ctrl_g_ctrl(sd->jpegqual));



	if (sd->subtype == LogitechClickSmart310) {

		xmult = 0x16;
@@ -934,117 +874,105 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev, 
	gspca_frame_add(gspca_dev, INTER_PACKET, data, len);

}



static void setbrightness(struct gspca_dev *gspca_dev)

static void setbrightness(struct gspca_dev *gspca_dev, s32 val)

{

	struct sd *sd = (struct sd *) gspca_dev;



	reg_w(gspca_dev, 0x00, 0x8167,

			(__u8) (sd->brightness - 128));

			(__u8) (val - 128));

}



static void setcontrast(struct gspca_dev *gspca_dev)

static void setcontrast(struct gspca_dev *gspca_dev, s32 val)

{

	struct sd *sd = (struct sd *) gspca_dev;



	reg_w(gspca_dev, 0x00, 0x8168, sd->contrast);

	reg_w(gspca_dev, 0x00, 0x8168, val);

}



static void setcolors(struct gspca_dev *gspca_dev)

static void setcolors(struct gspca_dev *gspca_dev, s32 val)

{

	struct sd *sd = (struct sd *) gspca_dev;



	reg_w(gspca_dev, 0x00, 0x8169, sd->colors);

	reg_w(gspca_dev, 0x00, 0x8169, val);

}



static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val)

static int sd_set_jcomp(struct gspca_dev *gspca_dev,

			struct v4l2_jpegcompression *jcomp)

{

	struct sd *sd = (struct sd *) gspca_dev;



	sd->brightness = val;

	if (gspca_dev->streaming)

		setbrightness(gspca_dev);

	v4l2_ctrl_s_ctrl(sd->jpegqual, jcomp->quality);

	return 0;

}



static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val)

static int sd_get_jcomp(struct gspca_dev *gspca_dev,

			struct v4l2_jpegcompression *jcomp)

{

	struct sd *sd = (struct sd *) gspca_dev;



	*val = sd->brightness;

	memset(jcomp, 0, sizeof *jcomp);

	jcomp->quality = v4l2_ctrl_g_ctrl(sd->jpegqual);

	jcomp->jpeg_markers = V4L2_JPEG_MARKER_DHT

			| V4L2_JPEG_MARKER_DQT;

	return 0;

}



static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val)

static int sd_s_ctrl(struct v4l2_ctrl *ctrl)

{

	struct gspca_dev *gspca_dev =

		container_of(ctrl->handler, struct gspca_dev, ctrl_handler);

	struct sd *sd = (struct sd *)gspca_dev;



	sd->contrast = val;

	if (gspca_dev->streaming)

		setcontrast(gspca_dev);

	return 0;

}



static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val)

{

	struct sd *sd = (struct sd *) gspca_dev;

	gspca_dev->usb_err = 0;



	*val = sd->contrast;

	if (!gspca_dev->streaming)

		return 0;

}



static int sd_setcolors(struct gspca_dev *gspca_dev, __s32 val)

{

	struct sd *sd = (struct sd *) gspca_dev;



	sd->colors = val;

	if (gspca_dev->streaming)

		setcolors(gspca_dev);

	return 0;

	switch (ctrl->id) {

	case V4L2_CID_BRIGHTNESS:

		setbrightness(gspca_dev, ctrl->val);

		break;

	case V4L2_CID_CONTRAST:

		setcontrast(gspca_dev, ctrl->val);

		break;

	case V4L2_CID_SATURATION:

		setcolors(gspca_dev, ctrl->val);

		break;

	case V4L2_CID_JPEG_COMPRESSION_QUALITY:

		jpeg_set_qual(sd->jpeg_hdr, ctrl->val);

		break;

	}



static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val)

{

	struct sd *sd = (struct sd *) gspca_dev;



	*val = sd->colors;

	return 0;

	return gspca_dev->usb_err;

}



static int sd_set_jcomp(struct gspca_dev *gspca_dev,

			struct v4l2_jpegcompression *jcomp)

{

	struct sd *sd = (struct sd *) gspca_dev;



	if (jcomp->quality < QUALITY_MIN)

		sd->quality = QUALITY_MIN;

	else if (jcomp->quality > QUALITY_MAX)

		sd->quality = QUALITY_MAX;

	else

		sd->quality = jcomp->quality;

	if (gspca_dev->streaming)

		jpeg_set_qual(sd->jpeg_hdr, sd->quality);

	return 0;

}

static const struct v4l2_ctrl_ops sd_ctrl_ops = {

	.s_ctrl = sd_s_ctrl,

};



static int sd_get_jcomp(struct gspca_dev *gspca_dev,

			struct v4l2_jpegcompression *jcomp)

static int sd_init_controls(struct gspca_dev *gspca_dev)

{

	struct sd *sd = (struct sd *)gspca_dev;



	memset(jcomp, 0, sizeof *jcomp);

	jcomp->quality = sd->quality;

	jcomp->jpeg_markers = V4L2_JPEG_MARKER_DHT

			| V4L2_JPEG_MARKER_DQT;

	struct v4l2_ctrl_handler *hdl = &gspca_dev->ctrl_handler;



	gspca_dev->vdev.ctrl_handler = hdl;

	v4l2_ctrl_handler_init(hdl, 4);

	v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,

			V4L2_CID_BRIGHTNESS, 0, 255, 1, 127);

	v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,

			V4L2_CID_CONTRAST, 0, 63, 1, 31);

	v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,

			V4L2_CID_SATURATION, 0, 63, 1, 31);

	sd->jpegqual = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,

			V4L2_CID_JPEG_COMPRESSION_QUALITY,

			QUALITY_MIN, QUALITY_MAX, 1, QUALITY_DEF);



	if (hdl->error) {

		pr_err("Could not initialize controls\n");

		return hdl->error;

	}

	return 0;

}



/* sub-driver description */

static const struct sd_desc sd_desc = {

	.name = MODULE_NAME,

	.ctrls = sd_ctrls,

	.nctrls = ARRAY_SIZE(sd_ctrls),

	.config = sd_config,

	.init = sd_init,

	.init_controls = sd_init_controls,

	.start = sd_start,

	.stopN = sd_stopN,

	.pkt_scan = sd_pkt_scan,