diff options
author | Jean-Francois Moine <moinejf@free.fr> | 2008-12-18 12:38:15 -0300 |
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committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2008-12-30 09:39:41 -0200 |
commit | 5b7ed28ec5deb57f790e38af8d813310b830743c (patch) | |
tree | 2472a21d3cc74faf1421aaf11732dbd14fe63423 | |
parent | f4b59e353239d3c8e2456a986e42f4c87cfcef9f (diff) | |
download | linux-5b7ed28ec5deb57f790e38af8d813310b830743c.tar.bz2 |
V4L/DVB (9987): gspca - spca561: Control changes for Rev72a.
- move the rev12a sequence from setcontrast to end of start
- add the white balance control for rev72a
- adjust the contrast formula
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
-rw-r--r-- | drivers/media/video/gspca/spca561.c | 142 |
1 files changed, 82 insertions, 60 deletions
diff --git a/drivers/media/video/gspca/spca561.c b/drivers/media/video/gspca/spca561.c index ee24629f0f5c..b31772c6ed32 100644 --- a/drivers/media/video/gspca/spca561.c +++ b/drivers/media/video/gspca/spca561.c @@ -32,22 +32,22 @@ MODULE_LICENSE("GPL"); struct sd { struct gspca_dev gspca_dev; /* !! must be the first item */ - __u16 contrast; /* rev72a only */ -#define CONTRAST_MIN 0x0000 -#define CONTRAST_DEF 0x2000 -#define CONTRAST_MAX 0x3fff - __u16 exposure; /* rev12a only */ #define EXPOSURE_MIN 1 #define EXPOSURE_DEF 200 #define EXPOSURE_MAX (4095 - 900) /* see set_exposure */ + __u8 contrast; /* rev72a only */ +#define CONTRAST_MIN 0x00 +#define CONTRAST_DEF 0x20 +#define CONTRAST_MAX 0x3f + __u8 brightness; /* rev72a only */ #define BRIGHTNESS_MIN 0 -#define BRIGHTNESS_DEF 32 -#define BRIGHTNESS_MAX 63 +#define BRIGHTNESS_DEF 0x20 +#define BRIGHTNESS_MAX 0x3f - __u8 white; /* rev12a only */ + __u8 white; #define WHITE_MIN 1 #define WHITE_DEF 0x40 #define WHITE_MAX 0x7f @@ -218,10 +218,11 @@ static const __u16 rev72a_init_data[][2] = { {0x0004, 0x8612}, /* Gr offset for white balance */ {0x0007, 0x8613}, /* B offset for white balance */ {0x0000, 0x8614}, /* Gb offset for white balance */ - {0x008c, 0x8651}, /* R gain for white balance */ - {0x008c, 0x8652}, /* Gr gain for white balance */ - {0x00b5, 0x8653}, /* B gain for white balance */ - {0x008c, 0x8654}, /* Gb gain for white balance */ +/* from ms-win */ + {0x0035, 0x8651}, /* R gain for white balance */ + {0x0040, 0x8652}, /* Gr gain for white balance */ + {0x005f, 0x8653}, /* B gain for white balance */ + {0x0040, 0x8654}, /* Gb gain for white balance */ {0x0002, 0x8502}, /* Maximum average bit rate stuff */ {0x0011, 0x8802}, @@ -591,46 +592,60 @@ static int sd_init_72a(struct gspca_dev *gspca_dev) return 0; } -static void setcontrast(struct gspca_dev *gspca_dev) +/* rev 72a only */ +static void setbrightness(struct gspca_dev *gspca_dev) { struct sd *sd = (struct sd *) gspca_dev; struct usb_device *dev = gspca_dev->dev; - __u8 lowb; + __u8 value; - switch (sd->chip_revision) { - case Rev072A: - lowb = sd->contrast >> 8; - reg_w_val(dev, 0x8651, lowb); - reg_w_val(dev, 0x8652, lowb); - reg_w_val(dev, 0x8653, lowb); - reg_w_val(dev, 0x8654, lowb); - break; - default: { -/* case Rev012A: { */ - static const __u8 Reg8391[] = - { 0x92, 0x30, 0x20, 0x00, 0x0c, 0x00, 0x00, 0x00 }; - - memcpy(gspca_dev->usb_buf, Reg8391, 8); - reg_w_buf(gspca_dev, 0x8391, 8); - reg_w_buf(gspca_dev, 0x8390, 8); - break; - } - } + value = sd->brightness; + + /* offsets for white balance */ + reg_w_val(dev, 0x8611, value); /* R */ + reg_w_val(dev, 0x8612, value); /* Gr */ + reg_w_val(dev, 0x8613, value); /* B */ + reg_w_val(dev, 0x8614, value); /* Gb */ } -/* rev12a only */ static void setwhite(struct gspca_dev *gspca_dev) { struct sd *sd = (struct sd *) gspca_dev; __u16 white; - __u8 reg8614, reg8616; + __u8 blue, red; + __u16 reg; - white = sd->white; /* try to emulate MS-win as possible */ - reg8616 = 0x90 - white * 5 / 8; - reg_w_val(gspca_dev->dev, 0x8616, reg8616); - reg8614 = 0x20 + white * 3 / 8; - reg_w_val(gspca_dev->dev, 0x8614, reg8614); + white = sd->white; + red = 0x20 + white * 3 / 8; + blue = 0x90 - white * 5 / 8; + if (sd->chip_revision == Rev012A) { + reg = 0x8614; + } else { + reg = 0x8651; + red += sd->contrast - 0x20; + blue += sd->contrast - 0x20; + } + reg_w_val(gspca_dev->dev, reg, red); + reg_w_val(gspca_dev->dev, reg + 2, blue); +} + +static void setcontrast(struct gspca_dev *gspca_dev) +{ + struct sd *sd = (struct sd *) gspca_dev; + struct usb_device *dev = gspca_dev->dev; + __u8 value; + + if (sd->chip_revision != Rev072A) + return; + value = sd->contrast + 0x20; + + /* gains for white balance */ + setwhite(gspca_dev); +/* reg_w_val(dev, 0x8651, value); * R - done by setwhite */ + reg_w_val(dev, 0x8652, value); /* Gr */ +/* reg_w_val(dev, 0x8653, value); * B - done by setwhite */ + reg_w_val(dev, 0x8654, value); /* Gb */ } /* rev 12a only */ @@ -690,9 +705,9 @@ static void setautogain(struct gspca_dev *gspca_dev) static int sd_start_12a(struct gspca_dev *gspca_dev) { struct usb_device *dev = gspca_dev->dev; - int Clck = 0x8a; /* lower 0x8X values lead to fps > 30 */ - __u8 Reg8307[] = { 0xaa, 0x00 }; int mode; + static const __u8 Reg8391[8] = + {0x92, 0x30, 0x20, 0x00, 0x0c, 0x00, 0x00, 0x00}; mode = gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv; if (mode <= 1) { @@ -705,15 +720,20 @@ static int sd_start_12a(struct gspca_dev *gspca_dev) reg_w_val(dev, 0x8500, mode); } /* -- qq@kuku.eu.org */ - memcpy(gspca_dev->usb_buf, Reg8307, sizeof Reg8307); - reg_w_buf(gspca_dev, 0x8307, sizeof Reg8307); - reg_w_val(gspca_dev->dev, 0x8700, Clck); + gspca_dev->usb_buf[0] = 0xaa; + gspca_dev->usb_buf[1] = 0x00; + reg_w_buf(gspca_dev, 0x8307, 2); + /* clock - lower 0x8X values lead to fps > 30 */ + reg_w_val(gspca_dev->dev, 0x8700, 0x8a); /* 0x8f 0x85 0x27 clock */ reg_w_val(gspca_dev->dev, 0x8112, 0x1e | 0x20); reg_w_val(gspca_dev->dev, 0x850b, 0x03); - setcontrast(gspca_dev); + memcpy(gspca_dev->usb_buf, Reg8391, 8); + reg_w_buf(gspca_dev, 0x8391, 8); + reg_w_buf(gspca_dev, 0x8390, 8); setwhite(gspca_dev); setautogain(gspca_dev); +/* setgain(gspca_dev); */ setexposure(gspca_dev); return 0; } @@ -740,6 +760,9 @@ static int sd_start_72a(struct gspca_dev *gspca_dev) reg_w_val(dev, 0x8500, mode); /* mode */ reg_w_val(dev, 0x8700, Clck); /* 0x27 clock */ reg_w_val(dev, 0x8112, 0x10 | 0x20); + setcontrast(gspca_dev); +/* setbrightness(gspca_dev); * fixme: bad values */ + setwhite(gspca_dev); setautogain(gspca_dev); return 0; } @@ -888,19 +911,6 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev, } /* rev 72a only */ -static void setbrightness(struct gspca_dev *gspca_dev) -{ - struct sd *sd = (struct sd *) gspca_dev; - __u8 value; - - value = sd->brightness; - reg_w_val(gspca_dev->dev, 0x8611, value); - reg_w_val(gspca_dev->dev, 0x8612, value); - reg_w_val(gspca_dev->dev, 0x8613, value); - reg_w_val(gspca_dev->dev, 0x8614, value); -} - -/* rev 72a only */ static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val) { struct sd *sd = (struct sd *) gspca_dev; @@ -956,7 +966,6 @@ static int sd_getautogain(struct gspca_dev *gspca_dev, __s32 *val) return 0; } -/* rev12a only */ static int sd_setwhite(struct gspca_dev *gspca_dev, __s32 val) { struct sd *sd = (struct sd *) gspca_dev; @@ -1071,6 +1080,19 @@ static struct ctrl sd_ctrls_12a[] = { static struct ctrl sd_ctrls_72a[] = { { + { + .id = V4L2_CID_DO_WHITE_BALANCE, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "White Balance", + .minimum = WHITE_MIN, + .maximum = WHITE_MAX, + .step = 1, + .default_value = WHITE_DEF, + }, + .set = sd_setwhite, + .get = sd_getwhite, + }, + { { .id = V4L2_CID_BRIGHTNESS, .type = V4L2_CTRL_TYPE_INTEGER, |