Commit 98684298 authored by Hans Verkuil's avatar Hans Verkuil Committed by Mauro Carvalho Chehab
Browse files

[media] gspca_mars: 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 d67a1ada

drivers/media/video/gspca/mars.c

+126 −166
Original line number Diff line number Diff line
@@ -30,22 +30,20 @@ MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>"); 
MODULE_DESCRIPTION("GSPCA/Mars USB Camera Driver");

MODULE_LICENSE("GPL");



/* controls */

enum e_ctrl {

	BRIGHTNESS,

	COLORS,

	GAMMA,

	SHARPNESS,

	ILLUM_TOP,

	ILLUM_BOT,

	NCTRLS		/* number of controls */

};



/* specific webcam descriptor */

struct sd {

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



	struct gspca_ctrl ctrls[NCTRLS];

	struct v4l2_ctrl_handler ctrl_handler;

	struct v4l2_ctrl *brightness;

	struct v4l2_ctrl *saturation;

	struct v4l2_ctrl *sharpness;

	struct v4l2_ctrl *gamma;

	struct { /* illuminator control cluster */

		struct v4l2_ctrl *illum_top;

		struct v4l2_ctrl *illum_bottom;

	};

	struct v4l2_ctrl *jpegqual;



	u8 quality;

#define QUALITY_MIN 40
@@ -56,89 +54,10 @@ struct sd { 
};



/* V4L2 controls supported by the driver */

static void setbrightness(struct gspca_dev *gspca_dev);

static void setcolors(struct gspca_dev *gspca_dev);

static void setgamma(struct gspca_dev *gspca_dev);

static void setsharpness(struct gspca_dev *gspca_dev);

static int sd_setilluminator1(struct gspca_dev *gspca_dev, __s32 val);

static int sd_setilluminator2(struct gspca_dev *gspca_dev, __s32 val);



static const struct ctrl sd_ctrls[NCTRLS] = {

[BRIGHTNESS] = {

	    {

		.id      = V4L2_CID_BRIGHTNESS,

		.type    = V4L2_CTRL_TYPE_INTEGER,

		.name    = "Brightness",

		.minimum = 0,

		.maximum = 30,

		.step    = 1,

		.default_value = 15,

	    },

	    .set_control = setbrightness

	},

[COLORS] = {

	    {

		.id      = V4L2_CID_SATURATION,

		.type    = V4L2_CTRL_TYPE_INTEGER,

		.name    = "Color",

		.minimum = 1,

		.maximum = 255,

		.step    = 1,

		.default_value = 200,

	    },

	    .set_control = setcolors

	},

[GAMMA] = {

	    {

		.id      = V4L2_CID_GAMMA,

		.type    = V4L2_CTRL_TYPE_INTEGER,

		.name    = "Gamma",

		.minimum = 0,

		.maximum = 3,

		.step    = 1,

		.default_value = 1,

	    },

	    .set_control = setgamma

	},

[SHARPNESS] = {

	    {

		.id	 = V4L2_CID_SHARPNESS,

		.type    = V4L2_CTRL_TYPE_INTEGER,

		.name    = "Sharpness",

		.minimum = 0,

		.maximum = 2,

		.step    = 1,

		.default_value = 1,

	    },

	    .set_control = setsharpness

	},

[ILLUM_TOP] = {

	    {

		.id	 = V4L2_CID_ILLUMINATORS_1,

		.type    = V4L2_CTRL_TYPE_BOOLEAN,

		.name    = "Top illuminator",

		.minimum = 0,

		.maximum = 1,

		.step    = 1,

		.default_value = 0,

		.flags = V4L2_CTRL_FLAG_UPDATE,

	    },

	    .set = sd_setilluminator1

	},

[ILLUM_BOT] = {

	    {

		.id	 = V4L2_CID_ILLUMINATORS_2,

		.type    = V4L2_CTRL_TYPE_BOOLEAN,

		.name    = "Bottom illuminator",

		.minimum = 0,

		.maximum = 1,

		.step    = 1,

		.default_value = 0,

		.flags = V4L2_CTRL_FLAG_UPDATE,

	    },

	    .set = sd_setilluminator2

	},

};

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

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

static void setgamma(struct gspca_dev *gspca_dev, s32 val);

static void setsharpness(struct gspca_dev *gspca_dev, s32 val);



static const struct v4l2_pix_format vga_mode[] = {

	{320, 240, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
@@ -198,59 +117,129 @@ static void mi_w(struct gspca_dev *gspca_dev, 
	reg_w(gspca_dev, 4);

}



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;



	gspca_dev->usb_buf[0] = 0x61;

	gspca_dev->usb_buf[1] = sd->ctrls[BRIGHTNESS].val;

	gspca_dev->usb_buf[1] = val;

	reg_w(gspca_dev, 2);

}



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;

	s16 val;



	val = sd->ctrls[COLORS].val;

	gspca_dev->usb_buf[0] = 0x5f;

	gspca_dev->usb_buf[1] = val << 3;

	gspca_dev->usb_buf[2] = ((val >> 2) & 0xf8) | 0x04;

	reg_w(gspca_dev, 3);

}



static void setgamma(struct gspca_dev *gspca_dev)

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

{

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



	gspca_dev->usb_buf[0] = 0x06;

	gspca_dev->usb_buf[1] = sd->ctrls[GAMMA].val * 0x40;

	gspca_dev->usb_buf[1] = val * 0x40;

	reg_w(gspca_dev, 2);

}



static void setsharpness(struct gspca_dev *gspca_dev)

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

{

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



	gspca_dev->usb_buf[0] = 0x67;

	gspca_dev->usb_buf[1] = sd->ctrls[SHARPNESS].val * 4 + 3;

	gspca_dev->usb_buf[1] = val * 4 + 3;

	reg_w(gspca_dev, 2);

}



static void setilluminators(struct gspca_dev *gspca_dev)

static void setilluminators(struct gspca_dev *gspca_dev, bool top, bool bottom)

{

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



	/* both are off if not streaming */

	gspca_dev->usb_buf[0] = 0x22;

	if (sd->ctrls[ILLUM_TOP].val)

	if (top)

		gspca_dev->usb_buf[1] = 0x76;

	else if (sd->ctrls[ILLUM_BOT].val)

	else if (bottom)

		gspca_dev->usb_buf[1] = 0x7a;

	else

		gspca_dev->usb_buf[1] = 0x7e;

	reg_w(gspca_dev, 2);

}



static int mars_s_ctrl(struct v4l2_ctrl *ctrl)

{

	struct sd *sd = container_of(ctrl->handler, struct sd, ctrl_handler);

	struct gspca_dev *gspca_dev = &sd->gspca_dev;



	gspca_dev->usb_err = 0;



	if (ctrl->id == V4L2_CID_ILLUMINATORS_1) {

		/* only one can be on at a time */

		if (ctrl->is_new && ctrl->val)

			sd->illum_bottom->val = 0;

		if (sd->illum_bottom->is_new && sd->illum_bottom->val)

			sd->illum_top->val = 0;

	}



	if (!gspca_dev->streaming)

		return 0;



	switch (ctrl->id) {

	case V4L2_CID_BRIGHTNESS:

		setbrightness(&sd->gspca_dev, ctrl->val);

		break;

	case V4L2_CID_SATURATION:

		setcolors(&sd->gspca_dev, ctrl->val);

		break;

	case V4L2_CID_GAMMA:

		setgamma(&sd->gspca_dev, ctrl->val);

		break;

	case V4L2_CID_ILLUMINATORS_1:

		setilluminators(&sd->gspca_dev, sd->illum_top->val,

						sd->illum_bottom->val);

		break;

	case V4L2_CID_SHARPNESS:

		setsharpness(&sd->gspca_dev, ctrl->val);

		break;

	case V4L2_CID_JPEG_COMPRESSION_QUALITY:

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

		break;

	default:

		return -EINVAL;

	}

	return gspca_dev->usb_err;

}



static const struct v4l2_ctrl_ops mars_ctrl_ops = {

	.s_ctrl = mars_s_ctrl,

};



/* this function is called at probe time */

static int sd_init_controls(struct gspca_dev *gspca_dev)

{

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

	struct v4l2_ctrl_handler *hdl = &sd->ctrl_handler;



	gspca_dev->vdev.ctrl_handler = hdl;

	v4l2_ctrl_handler_init(hdl, 7);

	sd->brightness = v4l2_ctrl_new_std(hdl, &mars_ctrl_ops,

			V4L2_CID_BRIGHTNESS, 0, 30, 1, 15);

	sd->saturation = v4l2_ctrl_new_std(hdl, &mars_ctrl_ops,

			V4L2_CID_SATURATION, 0, 255, 1, 200);

	sd->gamma = v4l2_ctrl_new_std(hdl, &mars_ctrl_ops,

			V4L2_CID_GAMMA, 0, 3, 1, 1);

	sd->sharpness = v4l2_ctrl_new_std(hdl, &mars_ctrl_ops,

			V4L2_CID_SHARPNESS, 0, 2, 1, 1);

	sd->illum_top = v4l2_ctrl_new_std(hdl, &mars_ctrl_ops,

			V4L2_CID_ILLUMINATORS_1, 0, 1, 1, 0);

	sd->illum_top->flags |= V4L2_CTRL_FLAG_UPDATE;

	sd->illum_bottom = v4l2_ctrl_new_std(hdl, &mars_ctrl_ops,

			V4L2_CID_ILLUMINATORS_2, 0, 1, 1, 0);

	sd->illum_bottom->flags |= V4L2_CTRL_FLAG_UPDATE;

	sd->jpegqual = v4l2_ctrl_new_std(hdl, &mars_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;

	}

	v4l2_ctrl_cluster(2, &sd->illum_top);

	return 0;

}



/* this function is called at probe time */

static int sd_config(struct gspca_dev *gspca_dev,

			const struct usb_device_id *id)
@@ -261,7 +250,6 @@ static int sd_config(struct gspca_dev *gspca_dev, 
	cam = &gspca_dev->cam;

	cam->cam_mode = vga_mode;

	cam->nmodes = ARRAY_SIZE(vga_mode);

	cam->ctrls = sd->ctrls;

	sd->quality = QUALITY_DEF;

	return 0;

}
@@ -269,7 +257,6 @@ static int sd_config(struct gspca_dev *gspca_dev, 
/* this function is called at probe and resume time */

static int sd_init(struct gspca_dev *gspca_dev)

{

	gspca_dev->ctrl_inac = (1 << ILLUM_TOP) | (1 << ILLUM_BOT);

	return 0;

}
@@ -282,7 +269,7 @@ static int sd_start(struct gspca_dev *gspca_dev) 
	/* create the JPEG header */

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

			0x21);		/* JPEG 422 */

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

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



	data = gspca_dev->usb_buf;
@@ -301,7 +288,7 @@ static int sd_start(struct gspca_dev *gspca_dev) 
	data[5] = 0x30;		/* reg 4, MI, PAS5101 :

				 *	0x30 for 24mhz , 0x28 for 12mhz */

	data[6] = 0x02;		/* reg 5, H start - was 0x04 */

	data[7] = sd->ctrls[GAMMA].val * 0x40;	/* reg 0x06: gamma */

	data[7] = v4l2_ctrl_g_ctrl(sd->gamma) * 0x40;	/* reg 0x06: gamma */

	data[8] = 0x01;		/* reg 7, V start - was 0x03 */

/*	if (h_size == 320 ) */

/*		data[9]= 0x56;	 * reg 8, 24MHz, 2:1 scale down */
@@ -333,16 +320,16 @@ static int sd_start(struct gspca_dev *gspca_dev) 
				/* reg 0x5f/0x60 (LE) = saturation */

				/* h (60): xxxx x100

				 * l (5f): xxxx x000 */

	data[2] = sd->ctrls[COLORS].val << 3;

	data[3] = ((sd->ctrls[COLORS].val >> 2) & 0xf8) | 0x04;

	data[4] = sd->ctrls[BRIGHTNESS].val; /* reg 0x61 = brightness */

	data[2] = v4l2_ctrl_g_ctrl(sd->saturation) << 3;

	data[3] = ((v4l2_ctrl_g_ctrl(sd->saturation) >> 2) & 0xf8) | 0x04;

	data[4] = v4l2_ctrl_g_ctrl(sd->brightness); /* reg 0x61 = brightness */

	data[5] = 0x00;



	reg_w(gspca_dev, 6);



	data[0] = 0x67;

/*jfm: from win trace*/

	data[1] = sd->ctrls[SHARPNESS].val * 4 + 3;

	data[1] = v4l2_ctrl_g_ctrl(sd->sharpness) * 4 + 3;

	data[2] = 0x14;

	reg_w(gspca_dev, 3);
@@ -365,7 +352,9 @@ static int sd_start(struct gspca_dev *gspca_dev) 
	data[1] = 0x4d;		/* ISOC transferring enable... */

	reg_w(gspca_dev, 2);



	gspca_dev->ctrl_inac = 0; /* activate the illuminator controls */

	setilluminators(gspca_dev, v4l2_ctrl_g_ctrl(sd->illum_top),

				   v4l2_ctrl_g_ctrl(sd->illum_bottom));



	return gspca_dev->usb_err;

}
@@ -373,11 +362,9 @@ static void sd_stopN(struct gspca_dev *gspca_dev) 
{

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



	gspca_dev->ctrl_inac = (1 << ILLUM_TOP) | (1 << ILLUM_BOT);

	if (sd->ctrls[ILLUM_TOP].val || sd->ctrls[ILLUM_BOT].val) {

		sd->ctrls[ILLUM_TOP].val = 0;

		sd->ctrls[ILLUM_BOT].val = 0;

		setilluminators(gspca_dev);

	if (v4l2_ctrl_g_ctrl(sd->illum_top) ||

	    v4l2_ctrl_g_ctrl(sd->illum_bottom)) {

		setilluminators(gspca_dev, false, false);

		msleep(20);

	}
@@ -424,43 +411,16 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev, 
	gspca_frame_add(gspca_dev, INTER_PACKET, data, len);

}



static int sd_setilluminator1(struct gspca_dev *gspca_dev, __s32 val)

{

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



	/* only one illuminator may be on */

	sd->ctrls[ILLUM_TOP].val = val;

	if (val)

		sd->ctrls[ILLUM_BOT].val = 0;

	setilluminators(gspca_dev);

	return gspca_dev->usb_err;

}



static int sd_setilluminator2(struct gspca_dev *gspca_dev, __s32 val)

{

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



	/* only one illuminator may be on */

	sd->ctrls[ILLUM_BOT].val = val;

	if (val)

		sd->ctrls[ILLUM_TOP].val = 0;

	setilluminators(gspca_dev);

	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;

	int ret;



	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);

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

	if (ret)

		return ret;

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

	return 0;

}
@@ -470,7 +430,7 @@ static int sd_get_jcomp(struct gspca_dev *gspca_dev, 
	struct sd *sd = (struct sd *) gspca_dev;



	memset(jcomp, 0, sizeof *jcomp);

	jcomp->quality = sd->quality;

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

	jcomp->jpeg_markers = V4L2_JPEG_MARKER_DHT

			| V4L2_JPEG_MARKER_DQT;

	return 0;
@@ -479,10 +439,9 @@ static int sd_get_jcomp(struct gspca_dev *gspca_dev, 
/* sub-driver description */

static const struct sd_desc sd_desc = {

	.name = MODULE_NAME,

	.ctrls = sd_ctrls,

	.nctrls = NCTRLS,

	.config = sd_config,

	.init = sd_init,

	.init_controls = sd_init_controls,

	.start = sd_start,

	.stopN = sd_stopN,

	.pkt_scan = sd_pkt_scan,
@@ -513,6 +472,7 @@ static struct usb_driver sd_driver = { 
#ifdef CONFIG_PM

	.suspend = gspca_suspend,

	.resume = gspca_resume,

	.reset_resume = gspca_resume,

#endif

};

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