From 6c9d3c59e6fdb8dfadaf7ba38f1d0b64ff066b36 Mon Sep 17 00:00:00 2001 From: Jean-Francois Moine Date: Wed, 3 Sep 2008 16:47:30 -0300 Subject: [PATCH] V4L/DVB (8669): gspca: Add white balance control for spca561 rev 012A. Signed-off-by: Jean-Francois Moine Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/gspca/spca561.c | 110 +++++++++++++++++++++++----- 1 file changed, 92 insertions(+), 18 deletions(-) diff --git a/drivers/media/video/gspca/spca561.c b/drivers/media/video/gspca/spca561.c index 1073ac3d2e..02e274452c 100644 --- a/drivers/media/video/gspca/spca561.c +++ b/drivers/media/video/gspca/spca561.c @@ -34,6 +34,7 @@ struct sd { unsigned short contrast; __u8 brightness; + __u8 white; __u8 autogain; __u8 chip_revision; @@ -46,11 +47,12 @@ static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val); static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val); static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val); static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val); +static int sd_setwhite(struct gspca_dev *gspca_dev, __s32 val); +static int sd_getwhite(struct gspca_dev *gspca_dev, __s32 *val); static int sd_setautogain(struct gspca_dev *gspca_dev, __s32 val); static int sd_getautogain(struct gspca_dev *gspca_dev, __s32 *val); static struct ctrl sd_ctrls[] = { -#define SD_BRIGHTNESS 0 { { .id = V4L2_CID_BRIGHTNESS, @@ -59,12 +61,12 @@ static struct ctrl sd_ctrls[] = { .minimum = 0, .maximum = 63, .step = 1, - .default_value = 32, +#define BRIGHTNESS_DEF 32 + .default_value = BRIGHTNESS_DEF, }, .set = sd_setbrightness, .get = sd_getbrightness, }, -#define SD_CONTRAST 1 { { .id = V4L2_CID_CONTRAST, @@ -73,12 +75,26 @@ static struct ctrl sd_ctrls[] = { .minimum = 0, .maximum = 0x3fff, .step = 1, - .default_value = 0x2000, +#define CONTRAST_DEF 0x2000 + .default_value = CONTRAST_DEF, }, .set = sd_setcontrast, .get = sd_getcontrast, }, -#define SD_AUTOGAIN 2 + { + { + .id = V4L2_CID_DO_WHITE_BALANCE, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "While Balance", + .minimum = 0, + .maximum = 0x7f, + .step = 1, +#define WHITE_DEF 40 + .default_value = WHITE_DEF, + }, + .set = sd_setwhite, + .get = sd_getwhite, + }, { { .id = V4L2_CID_AUTOGAIN, @@ -87,7 +103,8 @@ static struct ctrl sd_ctrls[] = { .minimum = 0, .maximum = 1, .step = 1, - .default_value = 1, +#define AUTOGAIN_DEF 1 + .default_value = AUTOGAIN_DEF, }, .set = sd_setautogain, .get = sd_getautogain, @@ -438,7 +455,7 @@ static const __u16 spca561_init_data[][2] = { {0x0035, 0x8801}, /* 0x14 - set gain general */ {0x001f, 0x8805}, /* 0x14 */ {0x0000, 0x8800}, - {0x0030, 0x8112}, + {0x000e, 0x8112}, /* white balance - was 30 */ {} }; @@ -478,9 +495,10 @@ static const __u16 Pb100_2map8300[][2] = { }; static const __u16 spca561_161rev12A_data1[][2] = { - {0x21, 0x8118}, - {0x01, 0x8114}, - {0x00, 0x8112}, + {0x29, 0x8118}, /* white balance - was 21 */ + {0x08, 0x8114}, /* white balance - was 01 */ + {0x0e, 0x8112}, /* white balance - was 00 */ + {0x00, 0x8102}, /* white balance - new */ {0x92, 0x8804}, {0x04, 0x8802}, /* windows uses 08 */ {} @@ -505,14 +523,16 @@ static const __u16 spca561_161rev12A_data2[][2] = { {0xb0, 0x8603}, /* sensor gains */ + {0x07, 0x8601}, /* white balance - new */ + {0x07, 0x8602}, /* white balance - new */ {0x00, 0x8610}, /* *red */ {0x00, 0x8611}, /* 3f *green */ {0x00, 0x8612}, /* green *blue */ {0x00, 0x8613}, /* blue *green */ - {0x35, 0x8614}, /* green *red */ - {0x35, 0x8615}, /* 40 *green */ - {0x35, 0x8616}, /* 7a *blue */ - {0x35, 0x8617}, /* 40 *green */ + {0x43, 0x8614}, /* green *red - white balance - was 0x35 */ + {0x40, 0x8615}, /* 40 *green - white balance - was 0x35 */ + {0x71, 0x8616}, /* 7a *blue - white balance - was 0x35 */ + {0x40, 0x8617}, /* 40 *green - white balance - was 0x35 */ {0x0c, 0x8620}, /* 0c */ {0xc8, 0x8631}, /* c8 */ @@ -527,6 +547,7 @@ static const __u16 spca561_161rev12A_data2[][2] = { {0xdf, 0x863c}, /* df */ {0xf0, 0x8505}, {0x32, 0x850a}, + {0x99, 0x8700}, /* - white balance - new */ {} }; @@ -588,9 +609,10 @@ static int sd_config(struct gspca_dev *gspca_dev, cam->nmodes = sizeof sif_mode / sizeof sif_mode[0]; sd->chip_revision = id->driver_info; - sd->brightness = sd_ctrls[SD_BRIGHTNESS].qctrl.default_value; - sd->contrast = sd_ctrls[SD_CONTRAST].qctrl.default_value; - sd->autogain = sd_ctrls[SD_AUTOGAIN].qctrl.default_value; + sd->brightness = BRIGHTNESS_DEF; + sd->contrast = CONTRAST_DEF; + sd->autogain = AUTOGAIN_DEF; + sd->white = WHITE_DEF; return 0; } @@ -628,15 +650,18 @@ static void setcontrast(struct gspca_dev *gspca_dev) reg_w_val(dev, lowb, 0x8653); reg_w_val(dev, lowb, 0x8654); break; - case Rev012A: { + default: { +/* case Rev012A: { */ __u8 Reg8391[] = { 0x00, 0x00, 0x00, 0x00, 0x0c, 0x00, 0x00, 0x00 }; /* Write camera sensor settings */ expotimes = (sd->contrast >> 5) & 0x07ff; + /* exposure is in 8309 2b, range 0120 - 5720 */ Reg8391[0] = expotimes & 0xff; /* exposure */ Reg8391[1] = 0x18 | (expotimes >> 8); Reg8391[2] = sd->brightness; /* gain */ + /* gain in 8335, 2b range 0000 - 2400 */ reg_w_buf(gspca_dev, 0x8391, Reg8391, 8); reg_w_buf(gspca_dev, 0x8390, Reg8391, 8); break; @@ -644,6 +669,34 @@ static void setcontrast(struct gspca_dev *gspca_dev) } } +static void setwhite(struct gspca_dev *gspca_dev) +{ + struct sd *sd = (struct sd *) gspca_dev; + __u16 white; + __u8 reg8614, reg8616; + + switch (sd->chip_revision) { + case Rev072A: + /* no such hardware */ + break; + default: +/* case Rev012A: */ + white = sd->white; + if (sd->white == 0) { + PDEBUG(D_CONF, "Discarding null whiteness"); + break; + } + /* try to emulate MS-win as possible */ + if (white < 0x45) + reg8616 = white; + else + reg8616 = 0x93 + (white >> 2); + reg8614 = 0x28 + (white >> 4); + reg_w_val(gspca_dev->dev, reg8616, 0x8616); + reg_w_val(gspca_dev->dev, reg8614, 0x8614); + } +} + static void setautogain(struct gspca_dev *gspca_dev) { struct sd *sd = (struct sd *) gspca_dev; @@ -714,6 +767,7 @@ static void sd_start(struct gspca_dev *gspca_dev) reg_w_val(gspca_dev->dev, 0x8112, 0x1e | 0x20); reg_w_val(gspca_dev->dev, 0x850b, 0x03); setcontrast(gspca_dev); + setwhite(gspca_dev); break; } } @@ -721,6 +775,7 @@ static void sd_start(struct gspca_dev *gspca_dev) static void sd_stopN(struct gspca_dev *gspca_dev) { reg_w_val(gspca_dev->dev, 0x8112, 0x20); + reg_w_val(gspca_dev->dev, 0x8102, 0x00); /* white balance - new */ } static void sd_stop0(struct gspca_dev *gspca_dev) @@ -968,6 +1023,25 @@ static int sd_getautogain(struct gspca_dev *gspca_dev, __s32 *val) return 0; } +/* white balance - new */ +static int sd_setwhite(struct gspca_dev *gspca_dev, __s32 val) +{ + struct sd *sd = (struct sd *) gspca_dev; + + sd->white = val; + if (gspca_dev->streaming) + setwhite(gspca_dev); + return 0; +} + +static int sd_getwhite(struct gspca_dev *gspca_dev, __s32 *val) +{ + struct sd *sd = (struct sd *) gspca_dev; + + *val = sd->white; + return 0; +} + /* sub-driver description */ static const struct sd_desc sd_desc = { .name = MODULE_NAME, -- 2.39.5