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[media] em28xx: introduce #defines for the image quality default settings

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The image quality default values will be used in at least two different places
and by using #defines we make sure that they are always consistent.

Signed-off-by: Frank Schäfer <fschaefer.oss@googlemail.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Frank Schaefer 2013-02-15 14:38:31 -03:00 committed by Mauro Carvalho Chehab
parent 7960205066
commit 43a5e08d00
2 changed files with 23 additions and 12 deletions
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12
drivers/media/usb/em28xx/em28xx-core.c
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@ -607,12 +607,12 @@ EXPORT_SYMBOL_GPL(em28xx_audio_setup);
int em28xx_colorlevels_set_default(struct em28xx *dev)
{
em28xx_write_reg(dev, EM28XX_R20_YGAIN, 0x10); /* contrast */
em28xx_write_reg(dev, EM28XX_R21_YOFFSET, 0x00); /* brightness */
em28xx_write_reg(dev, EM28XX_R22_UVGAIN, 0x10); /* saturation */
em28xx_write_reg(dev, EM28XX_R23_UOFFSET, 0x00);
em28xx_write_reg(dev, EM28XX_R24_VOFFSET, 0x00);
em28xx_write_reg(dev, EM28XX_R25_SHARPNESS, 0x00);
em28xx_write_reg(dev, EM28XX_R20_YGAIN, CONTRAST_DEFAULT);
em28xx_write_reg(dev, EM28XX_R21_YOFFSET, BRIGHTNESS_DEFAULT);
em28xx_write_reg(dev, EM28XX_R22_UVGAIN, SATURATION_DEFAULT);
em28xx_write_reg(dev, EM28XX_R23_UOFFSET, BLUE_BALANCE_DEFAULT);
em28xx_write_reg(dev, EM28XX_R24_VOFFSET, RED_BALANCE_DEFAULT);
em28xx_write_reg(dev, EM28XX_R25_SHARPNESS, SHARPNESS_DEFAULT);
em28xx_write_reg(dev, EM28XX_R14_GAMMA, 0x20);
em28xx_write_reg(dev, EM28XX_R15_RGAIN, 0x20);

23
drivers/media/usb/em28xx/em28xx-reg.h
View File

@ -120,12 +120,23 @@
#define EM28XX_R1E_CWIDTH 0x1e
#define EM28XX_R1F_CHEIGHT 0x1f
#define EM28XX_R20_YGAIN 0x20
#define EM28XX_R21_YOFFSET 0x21
#define EM28XX_R22_UVGAIN 0x22
#define EM28XX_R23_UOFFSET 0x23
#define EM28XX_R24_VOFFSET 0x24
#define EM28XX_R25_SHARPNESS 0x25
#define EM28XX_R20_YGAIN 0x20 /* contrast [0:4] */
#define CONTRAST_DEFAULT 0x10
#define EM28XX_R21_YOFFSET 0x21 /* brightness */ /* signed */
#define BRIGHTNESS_DEFAULT 0x00
#define EM28XX_R22_UVGAIN 0x22 /* saturation [0:4] */
#define SATURATION_DEFAULT 0x10
#define EM28XX_R23_UOFFSET 0x23 /* blue balance */ /* signed */
#define BLUE_BALANCE_DEFAULT 0x00
#define EM28XX_R24_VOFFSET 0x24 /* red balance */ /* signed */
#define RED_BALANCE_DEFAULT 0x00
#define EM28XX_R25_SHARPNESS 0x25 /* sharpness [0:4] */
#define SHARPNESS_DEFAULT 0x00
#define EM28XX_R26_COMPR 0x26
#define EM28XX_R27_OUTFMT 0x27