V4L/DVB (8602): gspca: Fix small bugs, simplify and cleanup ov519.

The hflip and vflip controls work for ov519 - ov7670 only.

Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

1 files changed, 143 insertions, 251 deletions

diff --git a/drivers/media/video/gspca/ov519.c b/drivers/media/video/gspca/ov519.c
index b825941..b4f00ec 100644
--- a/drivers/media/video/gspca/ov519.c
+++ b/drivers/media/video/gspca/ov519.c
@@ -40,8 +40,7 @@ struct sd {
 	struct gspca_dev gspca_dev;		/* !! must be the first item */
 
 	/* Determined by sensor type */
-	short maxwidth;
-	short maxheight;
+	char sif;
 
 	unsigned char primary_i2c_slave;	/* I2C write id of sensor */
 
@@ -85,7 +84,6 @@ 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[] = {
-#define SD_BRIGHTNESS 0
 	{
 	    {
 		.id      = V4L2_CID_BRIGHTNESS,
@@ -94,12 +92,12 @@ static struct ctrl sd_ctrls[] = {
 		.minimum = 0,
 		.maximum = 255,
 		.step    = 1,
-		.default_value = 127,
+#define BRIGHTNESS_DEF 127
+		.default_value = BRIGHTNESS_DEF,
 	    },
 	    .set = sd_setbrightness,
 	    .get = sd_getbrightness,
 	},
-#define SD_CONTRAST 1
 	{
 	    {
 		.id      = V4L2_CID_CONTRAST,
@@ -108,21 +106,22 @@ static struct ctrl sd_ctrls[] = {
 		.minimum = 0,
 		.maximum = 255,
 		.step    = 1,
-		.default_value = 127,
+#define CONTRAST_DEF 127
+		.default_value = CONTRAST_DEF,
 	    },
 	    .set = sd_setcontrast,
 	    .get = sd_getcontrast,
 	},
-#define SD_COLOR 2
 	{
 	    {
 		.id      = V4L2_CID_SATURATION,
 		.type    = V4L2_CTRL_TYPE_INTEGER,
-		.name    = "Saturation",
+		.name    = "Color",
 		.minimum = 0,
 		.maximum = 255,
 		.step    = 1,
-		.default_value = 127,
+#define COLOR_DEF 127
+		.default_value = COLOR_DEF,
 	    },
 	    .set = sd_setcolors,
 	    .get = sd_getcolors,
@@ -161,7 +160,7 @@ static struct ctrl sd_ctrls[] = {
 static struct v4l2_pix_format vga_mode[] = {
 	{320, 240, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
 		.bytesperline = 320,
-		.sizeimage = 320 * 240 * 3 / 8 + 589,
+		.sizeimage = 320 * 240 * 3 / 8 + 590,
 		.colorspace = V4L2_COLORSPACE_JPEG,
 		.priv = 1},
 	{640, 480, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
@@ -173,12 +172,12 @@ static struct v4l2_pix_format vga_mode[] = {
 static struct v4l2_pix_format sif_mode[] = {
 	{176, 144, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
 		.bytesperline = 176,
-		.sizeimage = 176 * 144 * 3 / 8 + 589,
+		.sizeimage = 176 * 144 * 3 / 8 + 590,
 		.colorspace = V4L2_COLORSPACE_JPEG,
 		.priv = 1},
 	{352, 288, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
 		.bytesperline = 352,
-		.sizeimage = 352 * 288 * 3 / 8 + 589,
+		.sizeimage = 352 * 288 * 3 / 8 + 590,
 		.colorspace = V4L2_COLORSPACE_JPEG,
 		.priv = 0},
 };
@@ -294,16 +293,6 @@ static struct v4l2_pix_format sif_mode[] = {
 #define OV7670_REG_HAECC7      0xaa    /* Hist AEC/AGC control 7 */
 #define OV7670_REG_BD60MAX     0xab    /* 60hz banding step limit */
 
-struct ovsensor_window {
-	short x;
-	short y;
-	short width;
-	short height;
-/*	int format; */
-	short quarter;		/* Scale width and height down 2x */
-	short clockdiv;		/* Clock divisor setting */
-};
-
 static unsigned char ov7670_abs_to_sm(unsigned char v)
 {
 	if (v > 127)
@@ -535,19 +524,6 @@ static int init_ov_sensor(struct sd *sd)
 	return 0;
 }
 
-/* Switch on standard JPEG compression. Returns 0 for success. */
-static int ov519_init_compression(struct sd *sd)
-{
-	if (!sd->compress_inited) {
-		if (reg_w_mask(sd, OV519_SYS_EN_CLK1, 1 << 2, 1 << 2) < 0) {
-			PDEBUG(D_ERR, "Error switching to compressed mode");
-			return -EIO;
-		}
-		sd->compress_inited = 1;
-	}
-	return 0;
-}
-
 /* Set the read and write slave IDs. The "slave" argument is the write slave,
  * and the read slave will be set to (slave + 1).
  * This should not be called from outside the i2c I/O functions.
@@ -717,21 +693,17 @@ static int ov8xx0_configure(struct sd *sd)
 		return -1;
 	}
 	if ((rc & 3) == 1) {
-		PDEBUG(D_PROBE, "Sensor is an OV8610");
 		sd->sensor = SEN_OV8610;
 	} else {
 		PDEBUG(D_ERR, "Unknown image sensor version: %d", rc & 3);
 		return -1;
 	}
 	PDEBUG(D_PROBE, "Writing 8610 registers");
-	if (write_i2c_regvals(sd,
-			norm_8610,
-			sizeof norm_8610 / sizeof norm_8610[0]))
+	if (write_i2c_regvals(sd, norm_8610, ARRAY_SIZE(norm_8610)))
 		return -1;
 
 	/* Set sensor-specific vars */
-	sd->maxwidth = 640;
-	sd->maxheight = 480;
+/*	sd->sif = 0;		already done */
 	return 0;
 }
 
@@ -861,7 +833,7 @@ static int ov7xx0_configure(struct sd *sd)
 		{ OV7670_REG_COM7, OV7670_COM7_RESET },
 		{ OV7670_REG_TSLB, 0x04 },		/* OV */
 		{ OV7670_REG_COM7, OV7670_COM7_FMT_VGA }, /* VGA */
-		{ OV7670_REG_CLKRC, 0x1 },
+		{ OV7670_REG_CLKRC, 0x01 },
 	/*
 	 * Set the hardware window.  These values from OV don't entirely
 	 * make sense - hstop is less than hstart.  But they work...
@@ -875,16 +847,12 @@ static int ov7xx0_configure(struct sd *sd)
 		{ 0x70, 0x3a },		{ 0x71, 0x35 },
 		{ 0x72, 0x11 },		{ 0x73, 0xf0 },
 		{ 0xa2, 0x02 },
-/* jfm */
-/* { OV7670_REG_COM10, 0x0 }, */
+/*		{ OV7670_REG_COM10, 0x0 }, */
 
 	/* Gamma curve values */
 		{ 0x7a, 0x20 },
-/* jfm:win 7b=1c */
 		{ 0x7b, 0x10 },
-/* jfm:win 7c=28 */
 		{ 0x7c, 0x1e },
-/* jfm:win 7d=3c */
 		{ 0x7d, 0x35 },
 		{ 0x7e, 0x5a },		{ 0x7f, 0x69 },
 		{ 0x80, 0x76 },		{ 0x81, 0x80 },
@@ -900,13 +868,11 @@ static int ov7xx0_configure(struct sd *sd)
 				 | OV7670_COM8_BFILT },
 		{ OV7670_REG_GAIN, 0 },	{ OV7670_REG_AECH, 0 },
 		{ OV7670_REG_COM4, 0x40 }, /* magic reserved bit */
-/* jfm:win 14=38 */
 		{ OV7670_REG_COM9, 0x18 }, /* 4x gain + magic rsvd bit */
 		{ OV7670_REG_BD50MAX, 0x05 },	{ OV7670_REG_BD60MAX, 0x07 },
 		{ OV7670_REG_AEW, 0x95 },	{ OV7670_REG_AEB, 0x33 },
 		{ OV7670_REG_VPT, 0xe3 },	{ OV7670_REG_HAECC1, 0x78 },
 		{ OV7670_REG_HAECC2, 0x68 },
-/* jfm:win a1=0b */
 		{ 0xa1, 0x03 }, /* magic */
 		{ OV7670_REG_HAECC3, 0xd8 },	{ OV7670_REG_HAECC4, 0xd8 },
 		{ OV7670_REG_HAECC5, 0xf0 },	{ OV7670_REG_HAECC6, 0x90 },
@@ -920,8 +886,6 @@ static int ov7xx0_configure(struct sd *sd)
 	/* Almost all of these are magic "reserved" values.  */
 		{ OV7670_REG_COM5, 0x61 },	{ OV7670_REG_COM6, 0x4b },
 		{ 0x16, 0x02 },
-/* jfm */
-/*		{ OV7670_REG_MVFP, 0x07|OV7670_MVFP_MIRROR }, */
 		{ OV7670_REG_MVFP, 0x07 },
 		{ 0x21, 0x02 },		{ 0x22, 0x91 },
 		{ 0x29, 0x07 },		{ 0x33, 0x0b },
@@ -995,17 +959,10 @@ static int ov7xx0_configure(struct sd *sd)
 		{ 0x79, 0x03 },		{ 0xc8, 0x40 },
 		{ 0x79, 0x05 },		{ 0xc8, 0x30 },
 		{ 0x79, 0x26 },
-
-};
+	};
 
 	PDEBUG(D_PROBE, "starting OV7xx0 configuration");
 
-/* jfm:already done? */
-	if (init_ov_sensor(sd) < 0)
-		PDEBUG(D_ERR, "Failed to read sensor ID");
-	else
-		PDEBUG(D_PROBE, "OV7xx0 initialized");
-
 	/* Detect sensor (sub)type */
 	rc = i2c_r(sd, OV7610_REG_COM_I);
 
@@ -1051,20 +1008,25 @@ static int ov7xx0_configure(struct sd *sd)
 			return low;
 		}
 		if (high == 0x76) {
-			if (low == 0x30) {
+			switch (low) {
+			case 0x30:
 				PDEBUG(D_PROBE, "Sensor is an OV7630/OV7635");
 				sd->sensor = SEN_OV7630;
-			} else if (low == 0x40) {
+				break;
+			case 0x40:
 				PDEBUG(D_PROBE, "Sensor is an OV7645");
 				sd->sensor = SEN_OV7640; /* FIXME */
-			} else if (low == 0x45) {
+				break;
+			case 0x45:
 				PDEBUG(D_PROBE, "Sensor is an OV7645B");
 				sd->sensor = SEN_OV7640; /* FIXME */
-			} else if (low == 0x48) {
+				break;
+			case 0x48:
 				PDEBUG(D_PROBE, "Sensor is an OV7648");
 				sd->sensor = SEN_OV7640; /* FIXME */
-			} else {
-				PDEBUG(D_PROBE, "Unknown sensor: 0x76%X", low);
+				break;
+			default:
+				PDEBUG(D_PROBE, "Unknown sensor: 0x76%x", low);
 				return -1;
 			}
 		} else {
@@ -1076,34 +1038,34 @@ static int ov7xx0_configure(struct sd *sd)
 		return -1;
 	}
 
-	if (sd->sensor == SEN_OV7620) {
+	switch (sd->sensor) {
+	case SEN_OV7620:
 		PDEBUG(D_PROBE, "Writing 7620 registers");
-		if (write_i2c_regvals(sd, norm_7620,
-				sizeof norm_7620 / sizeof norm_7620[0]))
+		if (write_i2c_regvals(sd, norm_7620, ARRAY_SIZE(norm_7620)))
 			return -1;
-	} else if (sd->sensor == SEN_OV7630) {
+		break;
+	case SEN_OV7630:
 		PDEBUG(D_ERR, "7630 is not supported by this driver version");
 		return -1;
-	} else if (sd->sensor == SEN_OV7640) {
+	case SEN_OV7640:
 		PDEBUG(D_PROBE, "Writing 7640 registers");
-		if (write_i2c_regvals(sd, norm_7640,
-				sizeof norm_7640 / sizeof norm_7640[0]))
+		if (write_i2c_regvals(sd, norm_7640, ARRAY_SIZE(norm_7640)))
 			return -1;
-	} else if (sd->sensor == SEN_OV7670) {
+		break;
+	case SEN_OV7670:
 		PDEBUG(D_PROBE, "Writing 7670 registers");
-		if (write_i2c_regvals(sd, norm_7670,
-				sizeof norm_7670 / sizeof norm_7670[0]))
+		if (write_i2c_regvals(sd, norm_7670, ARRAY_SIZE(norm_7670)))
 			return -1;
-	} else {
+		break;
+	default:
 		PDEBUG(D_PROBE, "Writing 7610 registers");
-		if (write_i2c_regvals(sd, norm_7610,
-				sizeof norm_7610 / sizeof norm_7610[0]))
+		if (write_i2c_regvals(sd, norm_7610, ARRAY_SIZE(norm_7610)))
 			return -1;
+		break;
 	}
 
 	/* Set sensor-specific vars */
-	sd->maxwidth = 640;
-	sd->maxheight = 480;
+/*	sd->sif = 0;		already done */
 	return 0;
 }
 
@@ -1257,43 +1219,45 @@ static int ov6xx0_configure(struct sd *sd)
 	/* Ugh. The first two bits are the version bits, but
 	 * the entire register value must be used. I guess OVT
 	 * underestimated how many variants they would make. */
-	if (rc == 0x00) {
+	switch (rc) {
+	case 0x00:
 		sd->sensor = SEN_OV6630;
 		PDEBUG(D_ERR,
 			"WARNING: Sensor is an OV66308. Your camera may have");
 		PDEBUG(D_ERR, "been misdetected in previous driver versions.");
-	} else if (rc == 0x01) {
+		break;
+	case 0x01:
 		sd->sensor = SEN_OV6620;
-		PDEBUG(D_PROBE, "Sensor is an OV6620");
-	} else if (rc == 0x02) {
+		break;
+	case 0x02:
 		sd->sensor = SEN_OV6630;
 		PDEBUG(D_PROBE, "Sensor is an OV66308AE");
-	} else if (rc == 0x03) {
+		break;
+	case 0x03:
 		sd->sensor = SEN_OV6630;
 		PDEBUG(D_PROBE, "Sensor is an OV66308AF");
-	} else if (rc == 0x90) {
+		break;
+	case 0x90:
 		sd->sensor = SEN_OV6630;
 		PDEBUG(D_ERR,
 			"WARNING: Sensor is an OV66307. Your camera may have");
 		PDEBUG(D_ERR, "been misdetected in previous driver versions.");
-	} else {
+		break;
+	default:
 		PDEBUG(D_ERR, "FATAL: Unknown sensor version: 0x%02x", rc);
 		return -1;
 	}
 
 	/* Set sensor-specific vars */
-	sd->maxwidth = 352;
-	sd->maxheight = 288;
+	sd->sif = 1;
 
 	if (sd->sensor == SEN_OV6620) {
 		PDEBUG(D_PROBE, "Writing 6x20 registers");
-		if (write_i2c_regvals(sd, norm_6x20,
-				sizeof norm_6x20 / sizeof norm_6x20[0]))
+		if (write_i2c_regvals(sd, norm_6x20, ARRAY_SIZE(norm_6x20)))
 			return -1;
 	} else {
 		PDEBUG(D_PROBE, "Writing 6x30 registers");
-		if (write_i2c_regvals(sd, norm_6x30,
-				sizeof norm_6x30 / sizeof norm_6x30[0]))
+		if (write_i2c_regvals(sd, norm_6x30, ARRAY_SIZE(norm_6x30)))
 			return -1;
 	}
 	return 0;
@@ -1302,14 +1266,8 @@ static int ov6xx0_configure(struct sd *sd)
 /* Turns on or off the LED. Only has an effect with OV511+/OV518(+)/OV519 */
 static void ov51x_led_control(struct sd *sd, int on)
 {
-	PDEBUG(D_STREAM, "LED (%s)", on ? "on" : "off");
-
-/*	if (sd->bridge == BRG_OV511PLUS) */
-/*		reg_w(sd, R511_SYS_LED_CTL, on ? 1 : 0); */
-/*	else if (sd->bridge == BRG_OV519) */
-		reg_w_mask(sd, OV519_GPIO_DATA_OUT0, !on, 1);	/* 0 / 1 */
-/*	else if (sd->bclass == BCL_OV518) */
-/*		reg_w_mask(sd, R518_GPIO_OUT, on ? 0x02 : 0x00, 0x02); */
+/*	PDEBUG(D_STREAM, "LED (%s)", on ? "on" : "off"); */
+	reg_w_mask(sd, OV519_GPIO_DATA_OUT0, !on, 1);	/* 0 / 1 */
 }
 
 /* this function is called at probe time */
@@ -1319,11 +1277,8 @@ static int sd_config(struct gspca_dev *gspca_dev,
 	struct sd *sd = (struct sd *) gspca_dev;
 	struct cam *cam;
 
-/* (from ov519_configure) */
 	static const struct ov_regvals init_519[] = {
 		{ 0x5a,  0x6d }, /* EnableSystem */
-/* jfm trace usbsnoop3-1.txt */
-/* jfm 53 = fb */
 		{ 0x53,  0x9b },
 		{ 0x54,  0xff }, /* set bit2 to enable jpeg */
 		{ 0x5d,  0x03 },
@@ -1340,9 +1295,6 @@ static int sd_config(struct gspca_dev *gspca_dev,
 
 	if (write_regvals(sd, init_519, ARRAY_SIZE(init_519)))
 		goto error;
-/* jfm: not seen in windows trace */
-	if (ov519_init_compression(sd))
-		goto error;
 	ov51x_led_control(sd, 0);	/* turn LED off */
 
 	/* Test for 76xx */
@@ -1391,16 +1343,16 @@ static int sd_config(struct gspca_dev *gspca_dev,
 
 	cam = &gspca_dev->cam;
 	cam->epaddr = OV511_ENDPOINT_ADDRESS;
-	if (sd->maxwidth == 640) {
+	if (!sd->sif) {
 		cam->cam_mode = vga_mode;
-		cam->nmodes = sizeof vga_mode / sizeof vga_mode[0];
+		cam->nmodes = ARRAY_SIZE(vga_mode);
 	} else {
 		cam->cam_mode = sif_mode;
-		cam->nmodes = sizeof sif_mode / sizeof sif_mode[0];
+		cam->nmodes = ARRAY_SIZE(sif_mode);
 	}
-	sd->brightness = sd_ctrls[SD_BRIGHTNESS].qctrl.default_value;
-	sd->contrast = sd_ctrls[SD_CONTRAST].qctrl.default_value;
-	sd->colors = sd_ctrls[SD_COLOR].qctrl.default_value;
+	sd->brightness = BRIGHTNESS_DEF;
+	sd->contrast = CONTRAST_DEF;
+	sd->colors = COLOR_DEF;
 	sd->hflip = HFLIP_DEF;
 	sd->vflip = VFLIP_DEF;
 	return 0;
@@ -1422,8 +1374,7 @@ static int sd_open(struct gspca_dev *gspca_dev)
  *
  * Do not put any sensor-specific code in here (including I2C I/O functions)
  */
-static int ov519_mode_init_regs(struct sd *sd,
-				int width, int height)
+static int ov519_mode_init_regs(struct sd *sd)
 {
 	static const struct ov_regvals mode_init_519_ov7670[] = {
 		{ 0x5d,	0x03 }, /* Turn off suspend mode */
@@ -1469,36 +1420,23 @@ static int ov519_mode_init_regs(struct sd *sd,
 		/* windows reads 0x55 at this point, why? */
 	};
 
-/* int hi_res; */
-
-	PDEBUG(D_CONF, "mode init %dx%d", width, height);
-
-/*	if (width >= 800 && height >= 600)
-		hi_res = 1;
-	else
-		hi_res = 0; */
-
-/*	if (ov51x_stop(sd) < 0)
-		return -EIO; */
-
 	/******** Set the mode ********/
 	if (sd->sensor != SEN_OV7670) {
 		if (write_regvals(sd, mode_init_519,
 				  ARRAY_SIZE(mode_init_519)))
 			return -EIO;
+		if (sd->sensor == SEN_OV7640) {
+			/* Select 8-bit input mode */
+			reg_w_mask(sd, OV519_CAM_DFR, 0x10, 0x10);
+		}
 	} else {
 		if (write_regvals(sd, mode_init_519_ov7670,
 				  ARRAY_SIZE(mode_init_519_ov7670)))
 			return -EIO;
 	}
 
-	if (sd->sensor == SEN_OV7640) {
-		/* Select 8-bit input mode */
-		reg_w_mask(sd, OV519_CAM_DFR, 0x10, 0x10);
-	}
-
-	reg_w(sd, OV519_CAM_H_SIZE,	width >> 4);
-	reg_w(sd, OV519_CAM_V_SIZE,	height >> 3);
+	reg_w(sd, OV519_CAM_H_SIZE,	sd->gspca_dev.width >> 4);
+	reg_w(sd, OV519_CAM_V_SIZE,	sd->gspca_dev.height >> 3);
 	reg_w(sd, OV519_CAM_X_OFFSETL,	0x00);
 	reg_w(sd, OV519_CAM_X_OFFSETH,	0x00);
 	reg_w(sd, OV519_CAM_Y_OFFSETL,	0x00);
@@ -1513,9 +1451,10 @@ static int ov519_mode_init_regs(struct sd *sd,
 
 /* FIXME: These are only valid at the max resolution. */
 	sd->clockdiv = 0;
-	if (sd->sensor == SEN_OV7640) {
+	switch (sd->sensor) {
+	case SEN_OV7640:
 		switch (sd->frame_rate) {
-/*jfm: default was 30 fps */
+/*fixme: default was 30 fps */
 		case 30:
 			reg_w(sd, 0xa4, 0x0c);
 			reg_w(sd, 0x23, 0xff);
@@ -1545,7 +1484,8 @@ static int ov519_mode_init_regs(struct sd *sd,
 			sd->clockdiv = 1;
 			break;
 		}
-	} else if (sd->sensor == SEN_OV8610) {
+		break;
+	case SEN_OV8610:
 		switch (sd->frame_rate) {
 		default:	/* 15 fps */
 /*		case 15: */
@@ -1561,41 +1501,37 @@ static int ov519_mode_init_regs(struct sd *sd,
 			reg_w(sd, 0x23, 0x1b);
 			break;
 		}
-		sd->clockdiv = 0;
-	} else if (sd->sensor == SEN_OV7670) { /* guesses, based on 7640 */
+		break;
+	case SEN_OV7670:		/* guesses, based on 7640 */
 		PDEBUG(D_STREAM, "Setting framerate to %d fps",
 				 (sd->frame_rate == 0) ? 15 : sd->frame_rate);
+		reg_w(sd, 0xa4, 0x10);
 		switch (sd->frame_rate) {
 		case 30:
-			reg_w(sd, 0xa4, 0x10);
 			reg_w(sd, 0x23, 0xff);
 			break;
 		case 20:
-			reg_w(sd, 0xa4, 0x10);
 			reg_w(sd, 0x23, 0x1b);
 			break;
-		default: /* 15 fps */
-/*			case 15: */
-			reg_w(sd, 0xa4, 0x10);
+		default:
+/*		case 15: */
 			reg_w(sd, 0x23, 0xff);
 			sd->clockdiv = 1;
 			break;
 		}
+		break;
 	}
 
-/*	if (ov51x_restart(sd) < 0)
-		return -EIO; */
-
-	/* Reset it just for good measure */
-/*	if (ov51x_reset(sd, OV511_RESET_NOREGS) < 0)
-		return -EIO; */
 	return 0;
 }
 
-static int mode_init_ov_sensor_regs(struct sd *sd,
-				struct ovsensor_window *win)
+static int mode_init_ov_sensor_regs(struct sd *sd)
 {
-	int qvga = win->quarter;
+	struct gspca_dev *gspca_dev;
+	int qvga;
+
+	gspca_dev = &sd->gspca_dev;
+	qvga = gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv;
 
 	/******** Mode (VGA/QVGA) and sensor specific regs ********/
 	switch (sd->sensor) {
@@ -1639,8 +1575,6 @@ static int mode_init_ov_sensor_regs(struct sd *sd,
 			 OV7670_COM7_FMT_MASK);
 		break;
 	case SEN_OV6620:
-		i2c_w_mask(sd, 0x14, qvga ? 0x20 : 0x00, 0x20);
-		break;
 	case SEN_OV6630:
 		i2c_w_mask(sd, 0x14, qvga ? 0x20 : 0x00, 0x20);
 		break;
@@ -1649,24 +1583,21 @@ static int mode_init_ov_sensor_regs(struct sd *sd,
 	}
 
 	/******** Palette-specific regs ********/
-/* Need to do work here for the OV7670 */
-
-		if (sd->sensor == SEN_OV7610 || sd->sensor == SEN_OV76BE) {
-			/* not valid on the OV6620/OV7620/6630? */
-			i2c_w_mask(sd, 0x0e, 0x00, 0x40);
-		}
+	if (sd->sensor == SEN_OV7610 || sd->sensor == SEN_OV76BE) {
+		/* not valid on the OV6620/OV7620/6630? */
+		i2c_w_mask(sd, 0x0e, 0x00, 0x40);
+	}
 
-		/* The OV518 needs special treatment. Although both the OV518
-		 * and the OV6630 support a 16-bit video bus, only the 8 bit Y
-		 * bus is actually used. The UV bus is tied to ground.
-		 * Therefore, the OV6630 needs to be in 8-bit multiplexed
-		 * output mode */
+	/* The OV518 needs special treatment. Although both the OV518
+	 * and the OV6630 support a 16-bit video bus, only the 8 bit Y
+	 * bus is actually used. The UV bus is tied to ground.
+	 * Therefore, the OV6630 needs to be in 8-bit multiplexed
+	 * output mode */
 
-		/* OV7640 is 8-bit only */
+	/* OV7640 is 8-bit only */
 
-		if (sd->sensor != SEN_OV6630 && sd->sensor != SEN_OV7640)
-			i2c_w_mask(sd, 0x13, 0x00, 0x20);
-/*	} */
+	if (sd->sensor != SEN_OV6630 && sd->sensor != SEN_OV7640)
+		i2c_w_mask(sd, 0x13, 0x00, 0x20);
 
 	/******** Clock programming ********/
 	/* The OV6620 needs special handling. This prevents the
@@ -1675,14 +1606,14 @@ static int mode_init_ov_sensor_regs(struct sd *sd,
 
 		/* Clock down */
 		i2c_w(sd, 0x2a, 0x04);
-		i2c_w(sd, 0x11, win->clockdiv);
+		i2c_w(sd, 0x11, sd->clockdiv);
 		i2c_w(sd, 0x2a, 0x84);
 		/* This next setting is critical. It seems to improve
 		 * the gain or the contrast. The "reserved" bits seem
 		 * to have some effect in this case. */
 		i2c_w(sd, 0x2d, 0x85);
-	} else if (win->clockdiv >= 0) {
-		i2c_w(sd, 0x11, win->clockdiv);
+	} else if (sd->clockdiv >= 0) {
+		i2c_w(sd, 0x11, sd->clockdiv);
 	}
 
 	/******** Special Features ********/
@@ -1702,7 +1633,7 @@ static int mode_init_ov_sensor_regs(struct sd *sd,
 	/* is fully tested. */
 	/* 7620/6620/6630? don't have register 0x35, so play it safe */
 	if (sd->sensor == SEN_OV7610 || sd->sensor == SEN_OV76BE) {
-		if (win->width == 640 /*&& win->height == 480*/)
+		if (!qvga)
 			i2c_w(sd, 0x35, 0x9e);
 		else
 			i2c_w(sd, 0x35, 0x1e);
@@ -1710,33 +1641,31 @@ static int mode_init_ov_sensor_regs(struct sd *sd,
 	return 0;
 }
 
-static void sethflip(struct sd *sd)
-{
-	if (sd->gspca_dev.streaming)
-		ov51x_stop(sd);
-	i2c_w_mask(sd, OV7670_REG_MVFP,
-		OV7670_MVFP_MIRROR * sd->hflip, OV7670_MVFP_MIRROR);
-	if (sd->gspca_dev.streaming)
-		ov51x_restart(sd);
-}
-
-static void setvflip(struct sd *sd)
+static void sethvflip(struct sd *sd)
 {
+	if (sd->sensor != SEN_OV7670)
+		return;
 	if (sd->gspca_dev.streaming)
 		ov51x_stop(sd);
 	i2c_w_mask(sd, OV7670_REG_MVFP,
-		OV7670_MVFP_VFLIP * sd->vflip, OV7670_MVFP_VFLIP);
+		OV7670_MVFP_MIRROR * sd->hflip
+			| OV7670_MVFP_VFLIP * sd->vflip,
+		OV7670_MVFP_MIRROR | OV7670_MVFP_VFLIP);
 	if (sd->gspca_dev.streaming)
 		ov51x_restart(sd);
 }
 
-static int set_ov_sensor_window(struct sd *sd,
-				struct ovsensor_window *win)
+static int set_ov_sensor_window(struct sd *sd)
 {
+	struct gspca_dev *gspca_dev;
+	int qvga;
 	int hwsbase, hwebase, vwsbase, vwebase, hwscale, vwscale;
 	int ret, hstart, hstop, vstop, vstart;
 	__u8 v;
 
+	gspca_dev = &sd->gspca_dev;
+	qvga = gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv;
+
 	/* The different sensor ICs handle setting up of window differently.
 	 * IF YOU SET IT WRONG, YOU WILL GET ALL ZERO ISOC DATA FROM OV51x!! */
 	switch (sd->sensor) {
@@ -1781,7 +1710,7 @@ static int set_ov_sensor_window(struct sd *sd,
 	switch (sd->sensor) {
 	case SEN_OV6620:
 	case SEN_OV6630:
-		if (win->quarter) {	/* QCIF */
+		if (qvga) {		/* QCIF */
 			hwscale = 0;
 			vwscale = 0;
 		} else {		/* CIF */
@@ -1791,7 +1720,7 @@ static int set_ov_sensor_window(struct sd *sd,
 		}
 		break;
 	case SEN_OV8610:
-		if (win->quarter) {	/* QSVGA */
+		if (qvga) {		/* QSVGA */
 			hwscale = 1;
 			vwscale = 1;
 		} else {		/* SVGA */
@@ -1800,7 +1729,7 @@ static int set_ov_sensor_window(struct sd *sd,
 		}
 		break;
 	default:			/* SEN_OV7xx0 */
-		if (win->quarter) {	/* QVGA */
+		if (qvga) {		/* QVGA */
 			hwscale = 1;
 			vwscale = 0;
 		} else {		/* VGA */
@@ -1809,7 +1738,7 @@ static int set_ov_sensor_window(struct sd *sd,
 		}
 	}
 
-	ret = mode_init_ov_sensor_regs(sd, win);
+	ret = mode_init_ov_sensor_regs(sd);
 	if (ret < 0)
 		return ret;
 
@@ -1830,7 +1759,7 @@ static int set_ov_sensor_window(struct sd *sd,
 	/* I can hard code this for OV7670s */
 	/* Yes, these numbers do look odd, but they're tested and work! */
 	if (sd->sensor == SEN_OV7670) {
-		if (win->quarter) {	/* QVGA from ov7670.c by
+		if (qvga) {		/* QVGA from ov7670.c by
 					 * Jonathan Corbet */
 			hstart = 164;
 			hstop = 20;
@@ -1844,76 +1773,45 @@ static int set_ov_sensor_window(struct sd *sd,
 		}
 		/* OV7670 hardware window registers are split across
 		 * multiple locations */
-		i2c_w(sd, OV7670_REG_HSTART, (hstart >> 3) & 0xff);
-		i2c_w(sd, OV7670_REG_HSTOP, (hstop >> 3) & 0xff);
+		i2c_w(sd, OV7670_REG_HSTART, hstart >> 3);
+		i2c_w(sd, OV7670_REG_HSTOP, hstop >> 3);
 		v = i2c_r(sd, OV7670_REG_HREF);
 		v = (v & 0xc0) | ((hstop & 0x7) << 3) | (hstart & 0x07);
 		msleep(10);	/* need to sleep between read and write to
 				 * same reg! */
 		i2c_w(sd, OV7670_REG_HREF, v);
 
-		i2c_w(sd, OV7670_REG_VSTART, (vstart >> 2) & 0xff);
-		i2c_w(sd, OV7670_REG_VSTOP, (vstop >> 2) & 0xff);
+		i2c_w(sd, OV7670_REG_VSTART, vstart >> 2);
+		i2c_w(sd, OV7670_REG_VSTOP, vstop >> 2);
 		v = i2c_r(sd, OV7670_REG_VREF);
 		v = (v & 0xc0) | ((vstop & 0x3) << 2) | (vstart & 0x03);
 		msleep(10);	/* need to sleep between read and write to
 				 * same reg! */
 		i2c_w(sd, OV7670_REG_VREF, v);
-		sethflip(sd);
-		setvflip(sd);
+		sethvflip(sd);
 	} else {
-		i2c_w(sd, 0x17, hwsbase + (win->x >> hwscale));
-		i2c_w(sd, 0x18, hwebase + ((win->x + win->width) >> hwscale));
-		i2c_w(sd, 0x19, vwsbase + (win->y >> vwscale));
-		i2c_w(sd, 0x1a, vwebase + ((win->y + win->height) >> vwscale));
+		i2c_w(sd, 0x17, hwsbase);
+		i2c_w(sd, 0x18, hwebase + (sd->gspca_dev.width >> hwscale));
+		i2c_w(sd, 0x19, vwsbase);
+		i2c_w(sd, 0x1a, vwebase + (sd->gspca_dev.height >> vwscale));
 	}
 	return 0;
 }
 
-static int ov_sensor_mode_setup(struct sd *sd,
-				int width, int height)
-{
-	struct ovsensor_window win;
-
-/*	win.format = mode; */
-
-	/* Unless subcapture is enabled,
-	 * center the image window and downsample
-	 * if possible to increase the field of view */
-	/* NOTE: OV518(+) and OV519 does downsampling on its own */
-	win.width = width;
-	win.height = height;
-	if (width == sd->maxwidth)
-		win.quarter = 0;
-	else
-		win.quarter = 1;
-
-	/* Center it */
-	win.x = (win.width - width) / 2;
-	win.y = (win.height - height) / 2;
-
-	/* Clock is determined by OV519 frame rate code */
-	win.clockdiv = sd->clockdiv;
-
-	PDEBUG(D_CONF, "Setting clock divider to %d", win.clockdiv);
-	return set_ov_sensor_window(sd, &win);
-}
-
 /* -- start the camera -- */
 static void sd_start(struct gspca_dev *gspca_dev)
 {
 	struct sd *sd = (struct sd *) gspca_dev;
 	int ret;
 
-
-	ret = ov519_mode_init_regs(sd, gspca_dev->width, gspca_dev->height);
+	ret = ov519_mode_init_regs(sd);
 	if (ret < 0)
 		goto out;
-	ret = ov_sensor_mode_setup(sd, gspca_dev->width, gspca_dev->height);
+	ret = set_ov_sensor_window(sd);
 	if (ret < 0)
 		goto out;
 
-	ret = ov51x_restart((struct sd *) gspca_dev);
+	ret = ov51x_restart(sd);
 	if (ret < 0)
 		goto out;
 	PDEBUG(D_STREAM, "camera started alt: 0x%02x", gspca_dev->alt);
@@ -1987,12 +1885,10 @@ static void setbrightness(struct gspca_dev *gspca_dev)
 {
 	struct sd *sd = (struct sd *) gspca_dev;
 	int val;
-/*	int was_streaming; */
 
 	val = sd->brightness;
 	PDEBUG(D_CONF, "brightness:%d", val);
-/*	was_streaming = gspca_dev->streaming;
- *	if (was_streaming)
+/*	if (gspca_dev->streaming)
  *		ov51x_stop(sd); */
 	switch (sd->sensor) {
 	case SEN_OV8610:
@@ -2010,12 +1906,12 @@ static void setbrightness(struct gspca_dev *gspca_dev)
 			i2c_w(sd, OV7610_REG_BRT, val);
 		break;
 	case SEN_OV7670:
-/*jfm - from windblows
+/*win trace
  *		i2c_w_mask(sd, OV7670_REG_COM8, 0, OV7670_COM8_AEC); */
 		i2c_w(sd, OV7670_REG_BRIGHT, ov7670_abs_to_sm(val));
 		break;
 	}
-/*	if (was_streaming)
+/*	if (gspca_dev->streaming)
  *		ov51x_restart(sd); */
 }
 
@@ -2023,12 +1919,10 @@ static void setcontrast(struct gspca_dev *gspca_dev)
 {
 	struct sd *sd = (struct sd *) gspca_dev;
 	int val;
-/*	int was_streaming; */
 
 	val = sd->contrast;
 	PDEBUG(D_CONF, "contrast:%d", val);
-/*	was_streaming = gspca_dev->streaming;
-	if (was_streaming)
+/*	if (gspca_dev->streaming)
 		ov51x_stop(sd); */
 	switch (sd->sensor) {
 	case SEN_OV7610:
@@ -2065,7 +1959,7 @@ static void setcontrast(struct gspca_dev *gspca_dev)
 		i2c_w(sd, OV7670_REG_CONTRAS, val >> 1);
 		break;
 	}
-/*	if (was_streaming)
+/*	if (gspca_dev->streaming)
 		ov51x_restart(sd); */
 }
 
@@ -2073,12 +1967,10 @@ static void setcolors(struct gspca_dev *gspca_dev)
 {
 	struct sd *sd = (struct sd *) gspca_dev;
 	int val;
-/*	int was_streaming; */
 
 	val = sd->colors;
 	PDEBUG(D_CONF, "saturation:%d", val);
-/*	was_streaming = gspca_dev->streaming;
-	if (was_streaming)
+/*	if (gspca_dev->streaming)
 		ov51x_stop(sd); */
 	switch (sd->sensor) {
 	case SEN_OV8610:
@@ -2104,7 +1996,7 @@ static void setcolors(struct gspca_dev *gspca_dev)
 		/* set REG_COM13 values for UV sat auto mode */
 		break;
 	}
-/*	if (was_streaming)
+/*	if (gspca_dev->streaming)
 		ov51x_restart(sd); */
 }
 
@@ -2164,7 +2056,7 @@ static int sd_sethflip(struct gspca_dev *gspca_dev, __s32 val)
 	struct sd *sd = (struct sd *) gspca_dev;
 
 	sd->hflip = val;
-	sethflip(sd);
+	sethvflip(sd);
 	return 0;
 }
 
@@ -2181,7 +2073,7 @@ static int sd_setvflip(struct gspca_dev *gspca_dev, __s32 val)
 	struct sd *sd = (struct sd *) gspca_dev;
 
 	sd->vflip = val;
-	setvflip(sd);
+	sethvflip(sd);
 	return 0;
 }