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authorTheodore Kilgore <kilgota@banach.math.auburn.edu>2010-01-15 05:54:36 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2010-02-26 15:11:07 -0300
commitc260fe936de6a52010a3247f9c3e8da47d9726e8 (patch)
treeb357908f7e3f98c1d56e2a6c8a1b8eaebd27c174 /drivers/media/video/gspca
parentc1ea5b7424e4d1d3f56de1504a257ec2419259e8 (diff)
V4L/DVB: gspca_mr97310a: Simplify sensor detection
Simplify sensor detection a bit (share more of the code between cif and vga cameras). Also remove an unnecessary write from zero_the_pointer(). 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>
Diffstat (limited to 'drivers/media/video/gspca')
-rw-r--r--drivers/media/video/gspca/mr97310a.c23
1 files changed, 10 insertions, 13 deletions
diff --git a/drivers/media/video/gspca/mr97310a.c b/drivers/media/video/gspca/mr97310a.c
index d842e8184426..959ea2a530a4 100644
--- a/drivers/media/video/gspca/mr97310a.c
+++ b/drivers/media/video/gspca/mr97310a.c
@@ -327,7 +327,6 @@ static int zero_the_pointer(struct gspca_dev *gspca_dev)
if (err_code < 0)
return err_code;
- err_code = mr_write(gspca_dev, 1);
data[0] = 0x19;
data[1] = 0x51;
err_code = mr_write(gspca_dev, 2);
@@ -460,12 +459,14 @@ static int sd_config(struct gspca_dev *gspca_dev,
if (err_code < 0)
return err_code;
+ /* Now, the query for sensor type. */
+ err_code = cam_get_response16(gspca_dev, 0x07, 1);
+ if (err_code < 0)
+ return err_code;
+
if (id->idProduct == 0x0110 || id->idProduct == 0x010e) {
sd->cam_type = CAM_TYPE_CIF;
cam->nmodes--;
- err_code = cam_get_response16(gspca_dev, 0x06, 1);
- if (err_code < 0)
- return err_code;
/*
* All but one of the known CIF cameras share the same USB ID,
* but two different init routines are in use, and the control
@@ -473,7 +474,7 @@ static int sd_config(struct gspca_dev *gspca_dev,
* of the two known varieties is connected!
*
* A list of known CIF cameras follows. They all report either
- * 0002 for type 0 or 0003 for type 1.
+ * 0200 for type 0 or 0300 for type 1.
* If you have another to report, please do
*
* Name sd->sensor_type reported by
@@ -487,7 +488,7 @@ static int sd_config(struct gspca_dev *gspca_dev,
* Philips dig. keych. 1 T. Kilgore
* Trust Spyc@m 100 1 A. Jacobs
*/
- switch (gspca_dev->usb_buf[1]) {
+ switch (gspca_dev->usb_buf[0]) {
case 2:
sd->sensor_type = 0;
break;
@@ -504,13 +505,9 @@ static int sd_config(struct gspca_dev *gspca_dev,
} else {
sd->cam_type = CAM_TYPE_VGA;
- err_code = cam_get_response16(gspca_dev, 0x07, 1);
- if (err_code < 0)
- return err_code;
-
/*
- * Here is a table of the responses to the previous command
- * from the known MR97310A VGA cameras.
+ * Here is a table of the responses to the query for sensor
+ * type, from the known MR97310A VGA cameras.
*
* Name gspca_dev->usb_buf[] sd->sensor_type
* sd->do_lcd_stop
@@ -560,7 +557,7 @@ static int sd_config(struct gspca_dev *gspca_dev,
PDEBUG(D_PROBE, "MR97310A VGA camera detected, sensor: %d",
sd->sensor_type);
}
- /* Stop streaming as we've started it to probe the sensor type. */
+ /* Stop streaming as we've started it only to probe the sensor type. */
sd_stopN(gspca_dev);
if (force_sensor_type != -1) {