diff options
| author | Jean-Francois Moine <moinejf@free.fr> | 2008-09-03 19:47:57 (GMT) |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2008-09-03 21:36:46 (GMT) |
| commit | dff6d321d421c4c059aea72be70df3a8a200b8a3 (patch) | |
| tree | 43a59aec996409c3aa456d5c593dd2801ebc5e05 /drivers/media | |
| parent | 3a1ea7050345734acc3a33b2b00a611b9b7bf640 (diff) | |
| download | linux-dff6d321d421c4c059aea72be70df3a8a200b8a3.tar.xz | |
V4L/DVB (8706): Make contrast and brightness work for pac7302.
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/video/gspca/pac7311.c | 43 |
1 files changed, 37 insertions, 6 deletions
diff --git a/drivers/media/video/gspca/pac7311.c b/drivers/media/video/gspca/pac7311.c index 3c9f2b1..3abc018 100644 --- a/drivers/media/video/gspca/pac7311.c +++ b/drivers/media/video/gspca/pac7311.c @@ -82,9 +82,10 @@ static struct ctrl sd_ctrls[] = { .type = V4L2_CTRL_TYPE_INTEGER, .name = "Contrast", .minimum = 0, - .maximum = 255, +#define CONTRAST_MAX 255 + .maximum = CONTRAST_MAX, .step = 1, -#define CONTRAST_DEF 127 +#define CONTRAST_DEF 60 .default_value = CONTRAST_DEF, }, .set = sd_setcontrast, @@ -94,7 +95,7 @@ static struct ctrl sd_ctrls[] = { { .id = V4L2_CID_SATURATION, .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Color", + .name = "Saturation", .minimum = 0, .maximum = 255, .step = 1, @@ -429,13 +430,42 @@ static int sd_config(struct gspca_dev *gspca_dev, return 0; } +/* rev 12a only */ +static void setbrightcont(struct gspca_dev *gspca_dev) +{ + struct sd *sd = (struct sd *) gspca_dev; + int i, v; + static const __u8 max[10] = + {0x29, 0x33, 0x42, 0x5a, 0x6e, 0x80, 0x9f, 0xbb, + 0xd4, 0xec}; + static const __u8 delta[10] = + {0x35, 0x33, 0x33, 0x2f, 0x2a, 0x25, 0x1e, 0x17, + 0x11, 0x0b}; + + reg_w(gspca_dev, 0xff, 0x00); /* page 0 */ + for (i = 0; i < 10; i++) { + v = max[i]; + v += (sd->brightness - BRIGHTNESS_MAX) + * 150 / BRIGHTNESS_MAX; /* 200 ? */ + v -= delta[i] * sd->contrast / CONTRAST_MAX; + if (v < 0) + v = 0; + else if (v > 0xff) + v = 0xff; + reg_w(gspca_dev, 0xa2 + i, v); + } + reg_w(gspca_dev, 0xdc, 0x01); +} + static void setbrightness(struct gspca_dev *gspca_dev) { struct sd *sd = (struct sd *) gspca_dev; int brightness; - if (sd->sensor == SENSOR_PAC7302) + if (sd->sensor == SENSOR_PAC7302) { + setbrightcont(gspca_dev); return; + } /*jfm: inverted?*/ brightness = BRIGHTNESS_MAX - sd->brightness; reg_w(gspca_dev, 0xff, 0x04); @@ -449,13 +479,14 @@ static void setcontrast(struct gspca_dev *gspca_dev) { struct sd *sd = (struct sd *) gspca_dev; - if (sd->sensor == SENSOR_PAC7302) + if (sd->sensor == SENSOR_PAC7302) { + setbrightcont(gspca_dev); return; + } reg_w(gspca_dev, 0xff, 0x01); reg_w(gspca_dev, 0x80, sd->contrast); /* load registers to sensor (Bit 0, auto clear) */ reg_w(gspca_dev, 0x11, 0x01); - PDEBUG(D_CONF|D_STREAM, "contrast: %i", sd->contrast); } static void setcolors(struct gspca_dev *gspca_dev) |