V4L/DVB (14006): gscpa_sq905c: Better detection of CIF resolution cameras
gscpa_sq905c: Better detection of CIF resolution cameras
Signed-off-by: Theodore Kilgore <kilgota@banach.math.auburn.edu>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/video/gspca/sq905c.c b/drivers/media/video/gspca/sq905c.c
index d70b156..bbfaf83 100644
--- a/drivers/media/video/gspca/sq905c.c
+++ b/drivers/media/video/gspca/sq905c.c
@@ -47,6 +47,7 @@
/* Commands. These go in the "value" slot. */
#define SQ905C_CLEAR 0xa0 /* clear everything */
+#define SQ905C_GET_ID 0x14f4 /* Read version number */
#define SQ905C_CAPTURE_LOW 0xa040 /* Starts capture at 160x120 */
#define SQ905C_CAPTURE_MED 0x1440 /* Starts capture at 320x240 */
#define SQ905C_CAPTURE_HI 0x2840 /* Starts capture at 320x240 */
@@ -101,6 +102,26 @@
return 0;
}
+static int sq905c_read(struct gspca_dev *gspca_dev, u16 command, u16 index,
+ int size)
+{
+ int ret;
+
+ ret = usb_control_msg(gspca_dev->dev,
+ usb_rcvctrlpipe(gspca_dev->dev, 0),
+ USB_REQ_SYNCH_FRAME, /* request */
+ USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ command, index, gspca_dev->usb_buf, size,
+ SQ905C_CMD_TIMEOUT);
+ if (ret < 0) {
+ PDEBUG(D_ERR, "%s: usb_control_msg failed (%d)",
+ __func__, ret);
+ return ret;
+ }
+
+ return 0;
+}
+
/* This function is called as a workqueue function and runs whenever the camera
* is streaming data. Because it is a workqueue function it is allowed to sleep
* so we can use synchronous USB calls. To avoid possible collisions with other
@@ -183,13 +204,34 @@
{
struct cam *cam = &gspca_dev->cam;
struct sd *dev = (struct sd *) gspca_dev;
+ int i, ret;
PDEBUG(D_PROBE,
"SQ9050 camera detected"
" (vid/pid 0x%04X:0x%04X)", id->idVendor, id->idProduct);
+
+ ret = sq905c_command(gspca_dev, SQ905C_GET_ID, 0);
+ if (ret < 0) {
+ PDEBUG(D_ERR, "Get version command failed");
+ return ret;
+ }
+
+ ret = sq905c_read(gspca_dev, 0xf5, 0, 20);
+ if (ret < 0) {
+ PDEBUG(D_ERR, "Reading version command failed");
+ return ret;
+ }
+ /* Note we leave out the usb id and the manufacturing date */
+ PDEBUG(D_PROBE,
+ "SQ9050 ID string: %02x - %02x %02x %02x %02x %02x %02x",
+ gspca_dev->usb_buf[3],
+ gspca_dev->usb_buf[14], gspca_dev->usb_buf[15],
+ gspca_dev->usb_buf[16], gspca_dev->usb_buf[17],
+ gspca_dev->usb_buf[18], gspca_dev->usb_buf[19]);
+
cam->cam_mode = sq905c_mode;
cam->nmodes = 2;
- if (id->idProduct == 0x9050)
+ if (gspca_dev->usb_buf[15] == 0)
cam->nmodes = 1;
/* We don't use the buffer gspca allocates so make it small. */
cam->bulk_size = 32;