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V4L/DVB (11868): gspca - spca508: Optimize code.

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Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Jean-Francois Moine 2009-05-13 14:25:29 -03:00 committed by Mauro Carvalho Chehab
parent 1af63b3d1d
commit 7880f66138
1 changed files with 16 additions and 30 deletions
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46
drivers/media/video/gspca/spca508.c
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@ -1305,16 +1305,16 @@ static int reg_read(struct gspca_dev *gspca_dev,
}
static int write_vector(struct gspca_dev *gspca_dev,
const u16 data[][2])
const u16 (*data)[2])
{
struct usb_device *dev = gspca_dev->dev;
int ret, i = 0;
int ret;
while (data[i][1] != 0) {
ret = reg_write(dev, data[i][1], data[i][0]);
while ((*data)[1] != 0) {
ret = reg_write(dev, (*data)[1], (*data)[0]);
if (ret < 0)
return ret;
i++;
data++;
}
return 0;
}
@ -1326,6 +1326,15 @@ static int sd_config(struct gspca_dev *gspca_dev,
struct sd *sd = (struct sd *) gspca_dev;
struct cam *cam;
int data1, data2;
const u16 (*init_data)[2];
static const u16 (*(init_data_tb[]))[2] = {
spca508_vista_init_data, /* CreativeVista 0 */
spca508_sightcam_init_data, /* HamaUSBSightcam 1 */
spca508_sightcam2_init_data, /* HamaUSBSightcam2 2 */
spca508cs110_init_data, /* IntelEasyPCCamera 3 */
spca508cs110_init_data, /* MicroInnovationIC200 4 */
spca508_init_data, /* ViewQuestVQ110 5 */
};
/* Read from global register the USB product and vendor IDs, just to
* prove that we can communicate with the device. This works, which
@ -1349,31 +1358,8 @@ static int sd_config(struct gspca_dev *gspca_dev,
sd->subtype = id->driver_info;
sd->brightness = BRIGHTNESS_DEF;
switch (sd->subtype) {
case ViewQuestVQ110:
if (write_vector(gspca_dev, spca508_init_data))
return -1;
break;
default:
/* case MicroInnovationIC200: */
/* case IntelEasyPCCamera: */
if (write_vector(gspca_dev, spca508cs110_init_data))
return -1;
break;
case HamaUSBSightcam:
if (write_vector(gspca_dev, spca508_sightcam_init_data))
return -1;
break;
case HamaUSBSightcam2:
if (write_vector(gspca_dev, spca508_sightcam2_init_data))
return -1;
break;
case CreativeVista:
if (write_vector(gspca_dev, spca508_vista_init_data))
return -1;
break;
}
return 0; /* success */
init_data = init_data_tb[sd->subtype];
return write_vector(gspca_dev, init_data);
}
/* this function is called at probe and resume time */