V4L/DVB (8664): gspca: The bridge/sensor of the webcam 093a:2621 is a PAC 7302.

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

drivers/media/video/gspca/pac7311.c

@@ -44,6 +44,10 @@ struct sd {
 	char tosof;	/* number of bytes before next start of frame */
 	signed char ag_cnt;
 #define AG_CNT_START 13
+
+	__u8 sensor;
+#define SENSOR_PAC7302 0
+#define SENSOR_PAC7311 1
 };
 
 /* V4L2 controls supported by the driver */
@@ -206,9 +210,158 @@ static const __u8 pac7311_jpeg_header[] = {
 	0x11, 0x00, 0x3f, 0x00
 };
 
+/* pac 7302 */
+static const __u8 probe_7302[] = {
+/*	index,value */
+	0xff, 0x01,		/* page 1 */
+	0x78, 0x00,		/* deactivate */
+	0xff, 0x01,
+	0x78, 0x40,		/* led off */
+};
+static const __u8 start_7302[] = {
+/*	index, len, [value]* */
+	0x00, 12,	0x01, 0x40, 0x40, 0x40, 0x01, 0xe0, 0x02, 0x80,
+			0x00, 0x00, 0x00, 0x00,
+	0x0d, 24,	0x03, 0x01, 0x00, 0xb5, 0x07, 0xcb, 0x00, 0x00,
+			0x07, 0xc8, 0x00, 0xea, 0x07, 0xcf, 0x07, 0xf7,
+			0x07, 0x7e, 0x01, 0x0b, 0x00, 0x00, 0x00, 0x11,
+	0x26, 2,	0xaa, 0xaa,
+	0x2e, 1,	0x31,
+	0x38, 1,	0x01,
+	0x3a, 3,	0x14, 0xff, 0x5a,
+	0x43, 11,	0x00, 0x0a, 0x18, 0x11, 0x01, 0x2c, 0x88, 0x11,
+			0x00, 0x54, 0x11,
+	0x55, 1,	0x00,
+	0x62, 4, 	0x10, 0x1e, 0x1e, 0x18,
+	0x6b, 1,	0x00,
+	0x6e, 3,	0x08, 0x06, 0x00,
+	0x72, 3,	0x00, 0xff, 0x00,
+	0x7d, 23,	0x01, 0x01, 0x58, 0x46, 0x50, 0x3c, 0x50, 0x3c,
+			0x54, 0x46, 0x54, 0x56, 0x52, 0x50, 0x52, 0x50,
+			0x56, 0x64, 0xa4, 0x00, 0xda, 0x00, 0x00,
+	0xa2, 10,	0x22, 0x2c, 0x3c, 0x54, 0x69, 0x7c, 0x9c, 0xb9,
+			0xd2, 0xeb,
+	0xaf, 1,	0x02,
+	0xb5, 2,	0x08, 0x08,
+	0xb8, 2,	0x08, 0x88,
+	0xc4, 4,	0xae, 0x01, 0x04, 0x01,
+	0xcc, 1,	0x00,
+	0xd1, 11,	0x01, 0x30, 0x49, 0x5e, 0x6f, 0x7f, 0x8e, 0xa9,
+			0xc1, 0xd7, 0xec,
+	0xdc, 1,	0x01,
+	0xff, 1,	0x01,
+	0x12, 3,	0x02, 0x00, 0x01,
+	0x3e, 2,	0x00, 0x00,
+	0x76, 5,	0x01, 0x20, 0x40, 0x00, 0xf2,
+	0x7c, 1,	0x00,
+	0x7f, 10,	0x4b, 0x0f, 0x01, 0x2c, 0x02, 0x58, 0x03, 0x20,
+			0x02, 0x00,
+	0x96, 5,	0x01, 0x10, 0x04, 0x01, 0x04,
+	0xc8, 17,	0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0x00, 0x00,
+			0x07, 0x00, 0x01, 0x07, 0x04, 0x01,
+			0x01,
+	0xdb, 2,	0x00, 0x01,
+	0xde, 8,	0x00, 0x01, 0x04, 0x04, 0x00, 0x00, 0x00,
+	0xe6, 4,	0x00, 0x00, 0x00, 0x01,
+	0xeb, 1,	0x00,
+	0xff, 1,	0x02,
+	0x22, 1,	0x00,
+	0xff, 1,	0x03,
+	0x00, 255,			/* load the page 3 */
+	0x11, 1,	0x01,
+	0xff, 1,	0x02,
+	0x13, 1,	0x00,
+	0x22, 4,	0x1f, 0xa4, 0xf0, 0x96,
+	0x27, 2,	0x14, 0x0c,
+	0x2a, 5,	0xc8, 0x00, 0x18, 0x12, 0x22,
+	0x64, 8,	0x00, 0x00, 0xf0, 0x01, 0x14, 0x44, 0x44, 0x44,
+	0x6e, 1,	0x08,
+	0xff, 1,	0x03,
+	0x78, 1,	0x00,
+	0, 0				/* end of sequence */
+};
+
+/* page 3 - the value 0xaa says skip the index - see reg_w_page() */
+static const __u8 page3_7302[] = {
+	0x90, 0x40, 0x03, 0x50, 0xc2, 0x01, 0x14, 0x16,
+	0x14, 0x12, 0x00, 0x00, 0x00, 0x02, 0x33, 0x00,
+	0x0f, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x47, 0x01, 0xb3, 0x01, 0x00,
+	0x00, 0x08, 0x00, 0x00, 0x0d, 0x00, 0x00, 0x21,
+	0x00, 0x00, 0x00, 0x54, 0xf4, 0x02, 0x52, 0x54,
+	0xa4, 0xb8, 0xe0, 0x2a, 0xf6, 0x00, 0x00, 0x00,
+	0x00, 0x1e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0xfc, 0x00, 0xf2, 0x1f, 0x04, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0xc0, 0xc0, 0x10, 0x00, 0x00,
+	0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x40, 0xff, 0x03, 0x19, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0xc8, 0xc8, 0xc8,
+	0xc8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x50,
+	0x08, 0x10, 0x24, 0x40, 0x00, 0x00, 0x00, 0x00,
+	0x01, 0x00, 0x02, 0x47, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x02, 0xfa, 0x00, 0x64, 0x5a, 0x28, 0x00,
+	0x00
+};
+
+/* pac 7311 */
+static const __u8 probe_7311[] = {
+	0x78, 0x40,	/* Bit_0=start stream, Bit_7=LED */
+	0x78, 0x40,	/* Bit_0=start stream, Bit_7=LED */
+	0x78, 0x44,	/* Bit_0=start stream, Bit_7=LED */
+	0xff, 0x04,
+	0x27, 0x80,
+	0x28, 0xca,
+	0x29, 0x53,
+	0x2a, 0x0e,
+	0xff, 0x01,
+	0x3e, 0x20,
+};
+
+static const __u8 start_7311[] = {
+/*	index, len, [value]* */
+	0xff, 1,	0x01,
+	0x02, 53,	0x48, 0x0a, 0x40, 0x08, 0x00, 0x00, 0x08, 0x00,
+			0x06, 0xff, 0x11, 0xff, 0x5a, 0x30, 0x90, 0x4c,
+			0x00, 0x07, 0x00, 0x0a, 0x10, 0x00, 0xa0, 0x10,
+			0x02, 0x00, 0x00, 0x00, 0x00, 0x0b, 0x01, 0x00,
+			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			0x00, 0x00, 0x00,
+	0x3e, 52,	0x00, 0x00, 0x78, 0x52, 0x4a, 0x52, 0x78, 0x6e,
+			0x48, 0x46, 0x48, 0x6e, 0x5f, 0x49, 0x42, 0x49,
+			0x5f, 0x5f, 0x49, 0x42, 0x49, 0x5f, 0x6e, 0x48,
+			0x46, 0x48, 0x6e, 0x78, 0x52, 0x4a, 0x52, 0x78,
+			0x00, 0x00, 0x09, 0x1b, 0x34, 0x49, 0x5c, 0x9b,
+			0xd0, 0xff,
+	0x78, 6,	0x44, 0x00, 0xf2, 0x01, 0x01, 0x80,
+	0x7f, 18,	0x2a, 0x1c, 0x00, 0xc8, 0x02, 0x58, 0x03, 0x84,
+			0x12, 0x00, 0x1a, 0x04, 0x08, 0x0c, 0x10, 0x14,
+			0x18, 0x20,
+	0x96, 3,	0x01, 0x08, 0x04,
+	0xa0, 4,	0x44, 0x44, 0x44, 0x04,
+	0xf0, 13,	0x01, 0x00, 0x00, 0x00, 0x22, 0x00, 0x20, 0x00,
+			0x3f, 0x00, 0x0a, 0x01, 0x00,
+	0xff, 1,	0x04,
+	0x00, 254,			/* load the page 4 */
+	0x11, 1,	0x01,
+	0, 0				/* end of sequence */
+};
+
+/* page 4 - the value 0xaa says skip the index - see reg_w_page() */
+static const __u8 page4_7311[] = {
+	0xaa, 0xaa, 0x04, 0x54, 0x07, 0x2b, 0x09, 0x0f,
+	0x09, 0x00, 0xaa, 0xaa, 0x07, 0x00, 0x00, 0x62,
+	0x08, 0xaa, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x03, 0xa0, 0x01, 0xf4, 0xaa,
+	0xaa, 0x00, 0x08, 0xaa, 0x03, 0xaa, 0x00, 0x01,
+	0xca, 0x10, 0x06, 0x78, 0x00, 0x00, 0x00, 0x00,
+	0x23, 0x28, 0x04, 0x11, 0x00, 0x00
+};
+
 static void reg_w_buf(struct gspca_dev *gspca_dev,
-		  __u16 index,
-		  const char *buffer, __u16 len)
+		  __u8 index,
+		  const char *buffer, int len)
 {
 	memcpy(gspca_dev->usb_buf, buffer, len);
 	usb_control_msg(gspca_dev->dev,
@@ -221,7 +374,7 @@ static void reg_w_buf(struct gspca_dev *gspca_dev,
 }
 
 static __u8 reg_r(struct gspca_dev *gspca_dev,
-			     __u16 index)
+			     __u8 index)
 {
 	usb_control_msg(gspca_dev->dev,
 			usb_rcvctrlpipe(gspca_dev->dev, 0),
@@ -234,7 +387,7 @@ static __u8 reg_r(struct gspca_dev *gspca_dev,
 }
 
 static void reg_w(struct gspca_dev *gspca_dev,
-		  __u16 index,
+		  __u8 index,
 		  __u8 value)
 {
 	gspca_dev->usb_buf[0] = value;
@@ -246,6 +399,74 @@ static void reg_w(struct gspca_dev *gspca_dev,
 			500);
 }
 
+static void reg_w_seq(struct gspca_dev *gspca_dev,
+		const __u8 *seq, int len)
+{
+	while (--len >= 0) {
+		reg_w(gspca_dev, seq[0], seq[1]);
+		seq += 2;
+	}
+}
+
+/* load the beginning of a page */
+static void reg_w_page(struct gspca_dev *gspca_dev,
+			const __u8 *page, int len)
+{
+	int index;
+
+	for (index = 0; index < len; index++) {
+		if (page[index] == 0xaa)		/* skip this index */
+			continue;
+		gspca_dev->usb_buf[0] = page[index];
+		usb_control_msg(gspca_dev->dev,
+				usb_sndctrlpipe(gspca_dev->dev, 0),
+				0,			/* request */
+			USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+				0, index, gspca_dev->usb_buf, 1,
+				500);
+	}
+}
+
+/* output a variable sequence */
+static void reg_w_var(struct gspca_dev *gspca_dev,
+			const __u8 *seq)
+{
+	int index, len;
+
+	for (;;) {
+		index = *seq++;
+		len = *seq++;
+		switch (len) {
+		case 0:
+			return;
+		case 254:
+			reg_w_page(gspca_dev, page4_7311, sizeof page4_7311);
+			break;
+		case 255:
+			reg_w_page(gspca_dev, page3_7302, sizeof page3_7302);
+			break;
+		default:
+			if (len > 32) {
+				PDEBUG(D_ERR|D_STREAM,
+					"Incorrect variable sequence");
+				return;
+			}
+			while (len > 0) {
+				if (len < 8) {
+					reg_w_buf(gspca_dev, index, seq, len);
+					seq += len;
+					break;
+				}
+				reg_w_buf(gspca_dev, index, seq, 8);
+				seq += 8;
+				index += 8;
+				len -= 8;
+			}
+		}
+	}
+	/* not reached */
+}
+
 /* this function is called at probe time */
 static int sd_config(struct gspca_dev *gspca_dev,
 			const struct usb_device_id *id)
@@ -253,22 +474,23 @@ static int sd_config(struct gspca_dev *gspca_dev,
 	struct sd *sd = (struct sd *) gspca_dev;
 	struct cam *cam;
 
-	PDEBUG(D_CONF, "Find Sensor PAC7311");
-	reg_w(gspca_dev, 0x78, 0x40); /* Bit_0=start stream, Bit_7=LED */
-	reg_w(gspca_dev, 0x78, 0x40); /* Bit_0=start stream, Bit_7=LED */
-	reg_w(gspca_dev, 0x78, 0x44); /* Bit_0=start stream, Bit_7=LED */
-	reg_w(gspca_dev, 0xff, 0x04);
-	reg_w(gspca_dev, 0x27, 0x80);
-	reg_w(gspca_dev, 0x28, 0xca);
-	reg_w(gspca_dev, 0x29, 0x53);
-	reg_w(gspca_dev, 0x2a, 0x0e);
-	reg_w(gspca_dev, 0xff, 0x01);
-	reg_w(gspca_dev, 0x3e, 0x20);
-
 	cam = &gspca_dev->cam;
 	cam->epaddr = 0x05;
-	cam->cam_mode = vga_mode;
-	cam->nmodes = ARRAY_SIZE(vga_mode);
+
+	sd->sensor = id->driver_info;
+	if (sd->sensor == SENSOR_PAC7302) {
+		PDEBUG(D_CONF, "Find Sensor PAC7302");
+		reg_w_seq(gspca_dev, probe_7302, sizeof probe_7302);
+
+		cam->cam_mode = &vga_mode[2];	/* only 640x480 */
+		cam->nmodes = 1;
+	} else {
+		PDEBUG(D_CONF, "Find Sensor PAC7311");
+		reg_w_seq(gspca_dev, probe_7302, sizeof probe_7302);
+
+		cam->cam_mode = vga_mode;
+		cam->nmodes = ARRAY_SIZE(vga_mode);
+	}
 
 	sd->brightness = BRIGHTNESS_DEF;
 	sd->contrast = CONTRAST_DEF;
@@ -283,10 +505,11 @@ static void setbrightness(struct gspca_dev *gspca_dev)
 	struct sd *sd = (struct sd *) gspca_dev;
 	int brightness;
 
+	if (sd->sensor == SENSOR_PAC7302)
+		return;
 /*jfm: inverted?*/
 	brightness = BRIGHTNESS_MAX - sd->brightness;
 	reg_w(gspca_dev, 0xff, 0x04);
-/*	reg_w(gspca_dev, 0x0e, 0x00); */
 	reg_w(gspca_dev, 0x0f, brightness);
 	/* load registers to sensor (Bit 0, auto clear) */
 	reg_w(gspca_dev, 0x11, 0x01);
@@ -297,6 +520,8 @@ static void setcontrast(struct gspca_dev *gspca_dev)
 {
 	struct sd *sd = (struct sd *) gspca_dev;
 
+	if (sd->sensor == SENSOR_PAC7302)
+		return;
 	reg_w(gspca_dev, 0xff, 0x01);
 	reg_w(gspca_dev, 0x80, sd->contrast);
 	/* load registers to sensor (Bit 0, auto clear) */
@@ -308,6 +533,8 @@ static void setcolors(struct gspca_dev *gspca_dev)
 {
 	struct sd *sd = (struct sd *) gspca_dev;
 
+	if (sd->sensor == SENSOR_PAC7302)
+		return;
 	reg_w(gspca_dev, 0xff, 0x01);
 	reg_w(gspca_dev, 0x10, sd->colors);
 	/* load registers to sensor (Bit 0, auto clear) */
@@ -340,75 +567,12 @@ static void sd_start(struct gspca_dev *gspca_dev)
 
 	sd->ffnb = 0;
 	sd->tosof = 0;
-	reg_w(gspca_dev, 0xff, 0x01);
-	reg_w_buf(gspca_dev, 0x0002, "\x48\x0a\x40\x08\x00\x00\x08\x00", 8);
-	reg_w_buf(gspca_dev, 0x000a, "\x06\xff\x11\xff\x5a\x30\x90\x4c", 8);
-	reg_w_buf(gspca_dev, 0x0012, "\x00\x07\x00\x0a\x10\x00\xa0\x10", 8);
-	reg_w_buf(gspca_dev, 0x001a, "\x02\x00\x00\x00\x00\x0b\x01\x00", 8);
-	reg_w_buf(gspca_dev, 0x0022, "\x00\x00\x00\x00\x00\x00\x00\x00", 8);
-	reg_w_buf(gspca_dev, 0x002a, "\x00\x00\x00", 3);
-	reg_w_buf(gspca_dev, 0x003e, "\x00\x00\x78\x52\x4a\x52\x78\x6e", 8);
-	reg_w_buf(gspca_dev, 0x0046, "\x48\x46\x48\x6e\x5f\x49\x42\x49", 8);
-	reg_w_buf(gspca_dev, 0x004e, "\x5f\x5f\x49\x42\x49\x5f\x6e\x48", 8);
-	reg_w_buf(gspca_dev, 0x0056, "\x46\x48\x6e\x78\x52\x4a\x52\x78", 8);
-	reg_w_buf(gspca_dev, 0x005e, "\x00\x00\x09\x1b\x34\x49\x5c\x9b", 8);
-	reg_w_buf(gspca_dev, 0x0066, "\xd0\xff", 2);
-	reg_w_buf(gspca_dev, 0x0078, "\x44\x00\xf2\x01\x01\x80", 6);
-	reg_w_buf(gspca_dev, 0x007f, "\x2a\x1c\x00\xc8\x02\x58\x03\x84", 8);
-	reg_w_buf(gspca_dev, 0x0087, "\x12\x00\x1a\x04\x08\x0c\x10\x14", 8);
-	reg_w_buf(gspca_dev, 0x008f, "\x18\x20", 2);
-	reg_w_buf(gspca_dev, 0x0096, "\x01\x08\x04", 3);
-	reg_w_buf(gspca_dev, 0x00a0, "\x44\x44\x44\x04", 4);
-	reg_w_buf(gspca_dev, 0x00f0, "\x01\x00\x00\x00\x22\x00\x20\x00", 8);
-	reg_w_buf(gspca_dev, 0x00f8, "\x3f\x00\x0a\x01\x00", 5);
 
-	reg_w(gspca_dev, 0xff, 0x04);
-	reg_w(gspca_dev, 0x02, 0x04);
-	reg_w(gspca_dev, 0x03, 0x54);
-	reg_w(gspca_dev, 0x04, 0x07);
-	reg_w(gspca_dev, 0x05, 0x2b);
-	reg_w(gspca_dev, 0x06, 0x09);
-	reg_w(gspca_dev, 0x07, 0x0f);
-	reg_w(gspca_dev, 0x08, 0x09);
-	reg_w(gspca_dev, 0x09, 0x00);
-	reg_w(gspca_dev, 0x0c, 0x07);
-	reg_w(gspca_dev, 0x0d, 0x00);
-	reg_w(gspca_dev, 0x0e, 0x00);
-	reg_w(gspca_dev, 0x0f, 0x62);
-	reg_w(gspca_dev, 0x10, 0x08);
-	reg_w(gspca_dev, 0x12, 0x07);
-	reg_w(gspca_dev, 0x13, 0x00);
-	reg_w(gspca_dev, 0x14, 0x00);
-	reg_w(gspca_dev, 0x15, 0x00);
-	reg_w(gspca_dev, 0x16, 0x00);
-	reg_w(gspca_dev, 0x17, 0x00);
-	reg_w(gspca_dev, 0x18, 0x00);
-	reg_w(gspca_dev, 0x19, 0x00);
-	reg_w(gspca_dev, 0x1a, 0x00);
-	reg_w(gspca_dev, 0x1b, 0x03);
-	reg_w(gspca_dev, 0x1c, 0xa0);
-	reg_w(gspca_dev, 0x1d, 0x01);
-	reg_w(gspca_dev, 0x1e, 0xf4);
-	reg_w(gspca_dev, 0x21, 0x00);
-	reg_w(gspca_dev, 0x22, 0x08);
-	reg_w(gspca_dev, 0x24, 0x03);
-	reg_w(gspca_dev, 0x26, 0x00);
-	reg_w(gspca_dev, 0x27, 0x01);
-	reg_w(gspca_dev, 0x28, 0xca);
-	reg_w(gspca_dev, 0x29, 0x10);
-	reg_w(gspca_dev, 0x2a, 0x06);
-	reg_w(gspca_dev, 0x2b, 0x78);
-	reg_w(gspca_dev, 0x2c, 0x00);
-	reg_w(gspca_dev, 0x2d, 0x00);
-	reg_w(gspca_dev, 0x2e, 0x00);
-	reg_w(gspca_dev, 0x2f, 0x00);
-	reg_w(gspca_dev, 0x30, 0x23);
-	reg_w(gspca_dev, 0x31, 0x28);
-	reg_w(gspca_dev, 0x32, 0x04);
-	reg_w(gspca_dev, 0x33, 0x11);
-	reg_w(gspca_dev, 0x34, 0x00);
-	reg_w(gspca_dev, 0x35, 0x00);
-	reg_w(gspca_dev, 0x11, 0x01);
+	if (sd->sensor == SENSOR_PAC7302)
+		reg_w_var(gspca_dev, start_7302);
+	else
+		reg_w_var(gspca_dev, start_7311);
+
 	setcontrast(gspca_dev);
 	setbrightness(gspca_dev);
 	setcolors(gspca_dev);
@@ -416,7 +580,7 @@ static void sd_start(struct gspca_dev *gspca_dev)
 
 	/* set correct resolution */
 	switch (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv) {
-	case 2:					/* 160x120 */
+	case 2:					/* 160x120 pac7311 */
 		reg_w(gspca_dev, 0xff, 0x04);
 		reg_w(gspca_dev, 0x02, 0x03);
 		reg_w(gspca_dev, 0xff, 0x01);
@@ -426,7 +590,7 @@ static void sd_start(struct gspca_dev *gspca_dev)
 /*		reg_w(gspca_dev, 0x80, 0x69); */
 		reg_w(gspca_dev, 0x87, 0x10);
 		break;
-	case 1:					/* 320x240 */
+	case 1:					/* 320x240 pac7311 */
 		reg_w(gspca_dev, 0xff, 0x04);
 		reg_w(gspca_dev, 0x02, 0x03);
 		reg_w(gspca_dev, 0xff, 0x01);
@@ -436,6 +600,8 @@ static void sd_start(struct gspca_dev *gspca_dev)
 		reg_w(gspca_dev, 0x87, 0x11);
 		break;
 	case 0:					/* 640x480 */
+		if (sd->sensor == SENSOR_PAC7302)
+			break;
 		reg_w(gspca_dev, 0xff, 0x04);
 		reg_w(gspca_dev, 0x02, 0x03);
 		reg_w(gspca_dev, 0xff, 0x01);
@@ -448,12 +614,25 @@ static void sd_start(struct gspca_dev *gspca_dev)
 
 	/* start stream */
 	reg_w(gspca_dev, 0xff, 0x01);
-	reg_w(gspca_dev, 0x78, 0x04);
-	reg_w(gspca_dev, 0x78, 0x05);
+	if (sd->sensor == SENSOR_PAC7302) {
+		reg_w(gspca_dev, 0x78, 0x01);
+		reg_w(gspca_dev, 0xff, 0x01);
+		reg_w(gspca_dev, 0x78, 0x01);
+	} else {
+		reg_w(gspca_dev, 0x78, 0x04);
+		reg_w(gspca_dev, 0x78, 0x05);
+	}
 }
 
 static void sd_stopN(struct gspca_dev *gspca_dev)
 {
+	struct sd *sd = (struct sd *) gspca_dev;
+
+	if (sd->sensor == SENSOR_PAC7302) {
+		reg_w(gspca_dev, 0x78, 0x00);
+		reg_w(gspca_dev, 0x78, 0x00);
+		return;
+	}
 	reg_w(gspca_dev, 0xff, 0x04);
 	reg_w(gspca_dev, 0x27, 0x80);
 	reg_w(gspca_dev, 0x28, 0xca);
@@ -468,21 +647,17 @@ static void sd_stopN(struct gspca_dev *gspca_dev)
 
 static void sd_stop0(struct gspca_dev *gspca_dev)
 {
+	struct sd *sd = (struct sd *) gspca_dev;
+
+	if (sd->sensor == SENSOR_PAC7302) {
+		reg_w(gspca_dev, 0xff, 0x01);
+		reg_w(gspca_dev, 0x78, 0x40);
+	}
 }
 
 /* this function is called at close time */
 static void sd_close(struct gspca_dev *gspca_dev)
 {
-	reg_w(gspca_dev, 0xff, 0x04);
-	reg_w(gspca_dev, 0x27, 0x80);
-	reg_w(gspca_dev, 0x28, 0xca);
-	reg_w(gspca_dev, 0x29, 0x53);
-	reg_w(gspca_dev, 0x2a, 0x0e);
-	reg_w(gspca_dev, 0xff, 0x01);
-	reg_w(gspca_dev, 0x3e, 0x20);
-	reg_w(gspca_dev, 0x78, 0x04); /* Bit_0=start stream, Bit_7=LED */
-	reg_w(gspca_dev, 0x78, 0x44); /* Bit_0=start stream, Bit_7=LED */
-	reg_w(gspca_dev, 0x78, 0x44); /* Bit_0=start stream, Bit_7=LED */
 }
 
 static void do_autogain(struct gspca_dev *gspca_dev)
@@ -509,10 +684,17 @@ static void do_autogain(struct gspca_dev *gspca_dev)
 		else if (Gbright < 4)
 			Gbright = 4;
 		PDEBUG(D_FRAM, "gbright %d", Gbright);
-		reg_w(gspca_dev, 0xff, 0x04);
-		reg_w(gspca_dev, 0x0f, Gbright);
-		/* load registers to sensor (Bit 0, auto clear) */
-		reg_w(gspca_dev, 0x11, 0x01);
+		if (sd->sensor == SENSOR_PAC7302) {
+			reg_w(gspca_dev, 0xff, 0x03);
+			reg_w(gspca_dev, 0x10, Gbright);
+			/* load registers to sensor (Bit 0, auto clear) */
+			reg_w(gspca_dev, 0x11, 0x01);
+		} else {
+			reg_w(gspca_dev, 0xff, 0x04);
+			reg_w(gspca_dev, 0x0f, Gbright);
+			/* load registers to sensor (Bit 0, auto clear) */
+			reg_w(gspca_dev, 0x11, 0x01);
+		}
 	}
 }
 
@@ -636,15 +818,6 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev,
 	}
 }
 
-static void getbrightness(struct gspca_dev *gspca_dev)
-{
-/*	sd->brightness = reg_r(gspca_dev, 0x08);
-	return sd->brightness;	*/
-/*	PDEBUG(D_CONF, "Called pac7311_getbrightness: Not implemented yet"); */
-}
-
-
-
 static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val)
 {
 	struct sd *sd = (struct sd *) gspca_dev;
@@ -659,7 +832,6 @@ static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val)
 {
 	struct sd *sd = (struct sd *) gspca_dev;
 
-	getbrightness(gspca_dev);
 	*val = sd->brightness;
 	return 0;
 }
@@ -678,7 +850,6 @@ static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val)
 {
 	struct sd *sd = (struct sd *) gspca_dev;
 
-/*	getcontrast(gspca_dev); */
 	*val = sd->contrast;
 	return 0;
 }
@@ -697,7 +868,6 @@ static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val)
 {
 	struct sd *sd = (struct sd *) gspca_dev;
 
-/*	getcolors(gspca_dev); */
 	*val = sd->colors;
 	return 0;
 }
@@ -737,13 +907,13 @@ static struct sd_desc sd_desc = {
 
 /* -- module initialisation -- */
 static __devinitdata struct usb_device_id device_table[] = {
-	{USB_DEVICE(0x093a, 0x2600)},
-	{USB_DEVICE(0x093a, 0x2601)},
-	{USB_DEVICE(0x093a, 0x2603)},
-	{USB_DEVICE(0x093a, 0x2608)},
-	{USB_DEVICE(0x093a, 0x260e)},
-	{USB_DEVICE(0x093a, 0x260f)},
-	{USB_DEVICE(0x093a, 0x2621)},
+	{USB_DEVICE(0x093a, 0x2600), .driver_info = SENSOR_PAC7311},
+	{USB_DEVICE(0x093a, 0x2601), .driver_info = SENSOR_PAC7311},
+	{USB_DEVICE(0x093a, 0x2603), .driver_info = SENSOR_PAC7311},
+	{USB_DEVICE(0x093a, 0x2608), .driver_info = SENSOR_PAC7311},
+	{USB_DEVICE(0x093a, 0x260e), .driver_info = SENSOR_PAC7311},
+	{USB_DEVICE(0x093a, 0x260f), .driver_info = SENSOR_PAC7311},
+	{USB_DEVICE(0x093a, 0x2621), .driver_info = SENSOR_PAC7302},
 	{}
 };
 MODULE_DEVICE_TABLE(usb, device_table);