V4L/DVB: gspca_cpia1: Disable illuminator controls if not an Intel Play QX3

The illuminator controls should only be available to the user for the Intel
Play QX3 microscope.  The implementation to inhibit the controls is intended to
be consistent with the other gspca driver implementations.
Signed-off-by: Andy Walls <awalls@md.metrocast.net>
Signed-off-by: Jean-François Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/gspca/cpia1.c

@@ -380,6 +380,7 @@ static int sd_getilluminator2(struct gspca_dev *gspca_dev, __s32 *val);
 
 static const struct ctrl sd_ctrls[] = {
 	{
+#define BRIGHTNESS_IDX 0
 	    {
 		.id      = V4L2_CID_BRIGHTNESS,
 		.type    = V4L2_CTRL_TYPE_INTEGER,
@@ -394,6 +395,7 @@ static const struct ctrl sd_ctrls[] = {
 	    .set = sd_setbrightness,
 	    .get = sd_getbrightness,
 	},
+#define CONTRAST_IDX 1
 	{
 	    {
 		.id      = V4L2_CID_CONTRAST,
@@ -408,6 +410,7 @@ static const struct ctrl sd_ctrls[] = {
 	    .set = sd_setcontrast,
 	    .get = sd_getcontrast,
 	},
+#define SATURATION_IDX 2
 	{
 	    {
 		.id      = V4L2_CID_SATURATION,
@@ -422,6 +425,7 @@ static const struct ctrl sd_ctrls[] = {
 	    .set = sd_setsaturation,
 	    .get = sd_getsaturation,
 	},
+#define POWER_LINE_FREQUENCY_IDX 3
 	{
 		{
 			.id	 = V4L2_CID_POWER_LINE_FREQUENCY,
@@ -436,6 +440,7 @@ static const struct ctrl sd_ctrls[] = {
 		.set = sd_setfreq,
 		.get = sd_getfreq,
 	},
+#define ILLUMINATORS_1_IDX 4
 	{
 		{
 			.id	 = V4L2_CID_ILLUMINATORS_1,
@@ -450,6 +455,7 @@ static const struct ctrl sd_ctrls[] = {
 		.set = sd_setilluminator1,
 		.get = sd_getilluminator1,
 	},
+#define ILLUMINATORS_2_IDX 5
 	{
 		{
 			.id	 = V4L2_CID_ILLUMINATORS_2,
@@ -464,6 +470,7 @@ static const struct ctrl sd_ctrls[] = {
 		.set = sd_setilluminator2,
 		.get = sd_getilluminator2,
 	},
+#define COMP_TARGET_IDX 6
 	{
 		{
 #define V4L2_CID_COMP_TARGET V4L2_CID_PRIVATE_BASE
@@ -1756,9 +1763,13 @@ static int sd_init(struct gspca_dev *gspca_dev)
 	if (ret)
 		return ret;
 
-	/* Ensure the QX3 illuminators' states are restored upon resume */
+	/* Ensure the QX3 illuminators' states are restored upon resume,
+	   or disable the illuminator controls, if this isn't a QX3 */
 	if (sd->params.qx3.qx3_detected)
 		command_setlights(gspca_dev);
+	else
+		gspca_dev->ctrl_dis |=
+			((1 << ILLUMINATORS_1_IDX) | (1 << ILLUMINATORS_2_IDX));
 
 	sd_stopN(gspca_dev);