[media] gspca - jeilinj: Add SPORTSCAM_DV15 camera support

Signed-off-by: Patrice CHOTARD <[e-mail]>
Signed-off-by: Jean-François Moine <[e-mail]>
Signed-off-by: Mauro Carvalho Chehab <[e-mail]>

Documentation/video4linux/gspca.txt

···
 pac7302		093a:262a	Webcam 300k
 pac7302		093a:262c	Philips SPC 230 NC
 jeilinj		0979:0280	Sakar 57379
+jeilinj		0979:0280	Sportscam DV15
 zc3xx		0ac8:0302	Z-star Vimicro zc0302
 vc032x		0ac8:0321	Vimicro generic vc0321
 vc032x		0ac8:0323	Vimicro Vc0323

drivers/media/video/gspca/jeilinj.c

···
 
 /* Default timeouts, in ms */
 #define JEILINJ_CMD_TIMEOUT 500
+#define JEILINJ_CMD_DELAY 160
 #define JEILINJ_DATA_TIMEOUT 1000
 
 /* Maximum transfer size to use. */
···
 #define FRAME_HEADER_LEN 0x10
 #define FRAME_START 0xFFFFFFFF
 
+enum {
+	SAKAR_57379,
+	SPORTSCAM_DV15,
+};
 /* Structure to hold all of our device specific stuff */
 struct sd {
 	struct gspca_dev gspca_dev;	/* !! must be the first item */
 	int blocks_left;
 	const struct v4l2_pix_format *cap_mode;
 	/* Driver stuff */
+	u8 type;
 	u8 quality;				 /* image quality */
 	u8 jpeg_hdr[JPEG_HDR_SZ];
 };
···
 struct jlj_command {
 	unsigned char instruction[2];
 	unsigned char ack_wanted;
+	unsigned char delay;
 };
 
 /* AFAICT these cameras will only do 320x240. */
···
 static int jlj_start(struct gspca_dev *gspca_dev)
 {
 	int i;
+	int start_commands_size;
 	u8 response = 0xff;
 	struct sd *sd = (struct sd *) gspca_dev;
 	struct jlj_command start_commands[] = {
-		{{0x71, 0x81}, 0},
-		{{0x70, 0x05}, 0},
-		{{0x95, 0x70}, 1},
-		{{0x71, 0x81}, 0},
-		{{0x70, 0x04}, 0},
-		{{0x95, 0x70}, 1},
-		{{0x71, 0x00}, 0},
-		{{0x70, 0x08}, 0},
-		{{0x95, 0x70}, 1},
-		{{0x94, 0x02}, 0},
-		{{0xde, 0x24}, 0},
-		{{0x94, 0x02}, 0},
-		{{0xdd, 0xf0}, 0},
-		{{0x94, 0x02}, 0},
-		{{0xe3, 0x2c}, 0},
-		{{0x94, 0x02}, 0},
-		{{0xe4, 0x00}, 0},
-		{{0x94, 0x02}, 0},
-		{{0xe5, 0x00}, 0},
-		{{0x94, 0x02}, 0},
-		{{0xe6, 0x2c}, 0},
-		{{0x94, 0x03}, 0},
-		{{0xaa, 0x00}, 0},
-		{{0x71, 0x1e}, 0},
-		{{0x70, 0x06}, 0},
-		{{0x71, 0x80}, 0},
-		{{0x70, 0x07}, 0}
+		{{0x71, 0x81}, 0, 0},
+		{{0x70, 0x05}, 0, JEILINJ_CMD_DELAY},
+		{{0x95, 0x70}, 1, 0},
+		{{0x71, 0x81 - gspca_dev->curr_mode}, 0, 0},
+		{{0x70, 0x04}, 0, JEILINJ_CMD_DELAY},
+		{{0x95, 0x70}, 1, 0},
+		{{0x71, 0x00}, 0, 0},   /* start streaming ??*/
+		{{0x70, 0x08}, 0, JEILINJ_CMD_DELAY},
+		{{0x95, 0x70}, 1, 0},
+#define SPORTSCAM_DV15_CMD_SIZE 9
+		{{0x94, 0x02}, 0, 0},
+		{{0xde, 0x24}, 0, 0},
+		{{0x94, 0x02}, 0, 0},
+		{{0xdd, 0xf0}, 0, 0},
+		{{0x94, 0x02}, 0, 0},
+		{{0xe3, 0x2c}, 0, 0},
+		{{0x94, 0x02}, 0, 0},
+		{{0xe4, 0x00}, 0, 0},
+		{{0x94, 0x02}, 0, 0},
+		{{0xe5, 0x00}, 0, 0},
+		{{0x94, 0x02}, 0, 0},
+		{{0xe6, 0x2c}, 0, 0},
+		{{0x94, 0x03}, 0, 0},
+		{{0xaa, 0x00}, 0, 0},
+		{{0x71, 0x1e}, 0, 0},
+		{{0x70, 0x06}, 0, 0},
+		{{0x71, 0x80}, 0, 0},
+		{{0x70, 0x07}, 0, 0}
 	};
 
 	sd->blocks_left = 0;
-	for (i = 0; i < ARRAY_SIZE(start_commands); i++) {
+	/* Under Windows, USB spy shows that only the 9 first start
+	 * commands are used for SPORTSCAM_DV15 webcam
+	 */
+	if (sd->type == SPORTSCAM_DV15)
+		start_commands_size = SPORTSCAM_DV15_CMD_SIZE;
+	else
+		start_commands_size = ARRAY_SIZE(start_commands);
+
+	for (i = 0; i < start_commands_size; i++) {
 		jlj_write2(gspca_dev, start_commands[i].instruction);
+		if (start_commands[i].delay)
+			msleep(start_commands[i].delay);
 		if (start_commands[i].ack_wanted)
 			jlj_read1(gspca_dev, response);
 	}
···
 	struct cam *cam = &gspca_dev->cam;
 	struct sd *dev  = (struct sd *) gspca_dev;
 
+	dev->type = id->driver_info;
 	dev->quality  = 85;
 	PDEBUG(D_PROBE,
 		"JEILINJ camera detected"
···
 
 /* Table of supported USB devices */
 static const struct usb_device_id device_table[] = {
-	{USB_DEVICE(0x0979, 0x0280)},
+	{USB_DEVICE(0x0979, 0x0280), .driver_info = SAKAR_57379},
+	{USB_DEVICE(0x0979, 0x0270), .driver_info = SPORTSCAM_DV15},
 	{}
 };
 
 MODULE_DEVICE_TABLE(usb, device_table);
 
 /* sub-driver description */
-static const struct sd_desc sd_desc = {
+static const struct sd_desc sd_desc_sakar_57379 = {
 	.name   = MODULE_NAME,
 	.config = sd_config,
 	.init   = sd_init,
···
 	.pkt_scan = sd_pkt_scan,
 };
 
+/* sub-driver description */
+static const struct sd_desc sd_desc_sportscam_dv15 = {
+	.name   = MODULE_NAME,
+	.config = sd_config,
+	.init   = sd_init,
+	.start  = sd_start,
+	.stopN  = sd_stopN,
+	.pkt_scan = sd_pkt_scan,
+};
+
+static const struct sd_desc *sd_desc[2] = {
+	&sd_desc_sakar_57379,
+	&sd_desc_sportscam_dv15
+};
+
 /* -- device connect -- */
 static int sd_probe(struct usb_interface *intf,
 		const struct usb_device_id *id)
 {
 	return gspca_dev_probe(intf, id,
-			&sd_desc,
+			sd_desc[id->driver_info],
 			sizeof(struct sd),
 			THIS_MODULE);
 }