diff options
Diffstat (limited to 'drivers/media')
-rw-r--r-- | drivers/media/video/gspca/sonixb.c | 170 |
1 files changed, 122 insertions, 48 deletions
diff --git a/drivers/media/video/gspca/sonixb.c b/drivers/media/video/gspca/sonixb.c index dc2d88c..66fffa3 100644 --- a/drivers/media/video/gspca/sonixb.c +++ b/drivers/media/video/gspca/sonixb.c @@ -176,7 +176,7 @@ static const struct ctrl sd_ctrls[] = { .maximum = 255, .step = 1, #define GAIN_DEF 127 -#define GAIN_KNEE 200 +#define GAIN_KNEE 230 .default_value = GAIN_DEF, }, .set = sd_setgain, @@ -188,10 +188,10 @@ static const struct ctrl sd_ctrls[] = { .id = V4L2_CID_EXPOSURE, .type = V4L2_CTRL_TYPE_INTEGER, .name = "Exposure", -#define EXPOSURE_DEF 33 /* 33 ms / 30 fps */ -#define EXPOSURE_KNEE 100 /* 100 ms / 10 fps */ +#define EXPOSURE_DEF 66 /* 33 ms / 30 fps (except on PAS202) */ +#define EXPOSURE_KNEE 200 /* 100 ms / 10 fps (except on PAS202) */ .minimum = 0, - .maximum = 511, + .maximum = 1023, .step = 1, .default_value = EXPOSURE_DEF, .flags = 0, @@ -454,31 +454,41 @@ static const __u8 initPas202[] = { 0x44, 0x44, 0x21, 0x30, 0x00, 0x00, 0x00, 0x80, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x06, 0x03, 0x0a, - 0x28, 0x1e, 0x28, 0x89, 0x20, + 0x28, 0x1e, 0x20, 0x89, 0x20, 0x00, 0x00, 0x02, 0x03, 0x0f, 0x0c }; + +/* "Known" PAS202BCB registers: + 0x02 clock divider + 0x04 Variable framerate bits 6-11 (*) + 0x05 Var framerate bits 0-5, one must leave the 2 msb's at 0 !! + 0x07 Blue Gain + 0x08 Green Gain + 0x09 Red Gain + 0x0b offset sign bit (bit0 1 > negative offset) + 0x0c offset + 0x0e Unknown image is slightly brighter when bit 0 is 0, if reg0f is 0 too, + leave at 1 otherwise we get a jump in our exposure control + 0x0f Exposure 0-255, 0 = use full frame time, 255 = no exposure at all + 0x10 Master gain 0 - 31 + 0x11 write 1 to apply changes + (*) The variable framerate control must never be set lower then 500 + which sets the framerate at 30 / reg02, otherwise vsync is lost. +*/ static const __u8 pas202_sensor_init[][8] = { - {0xa0, 0x40, 0x02, 0x03, 0x00, 0x00, 0x00, 0x10}, + /* Set the clock divider to 4 -> 30 / 4 = 7.5 fps, we would like + to set it lower, but for some reason the bridge starts missing + vsync's then */ + {0xa0, 0x40, 0x02, 0x04, 0x00, 0x00, 0x00, 0x10}, {0xd0, 0x40, 0x04, 0x07, 0x34, 0x00, 0x09, 0x10}, {0xd0, 0x40, 0x08, 0x01, 0x00, 0x00, 0x01, 0x10}, - {0xd0, 0x40, 0x0C, 0x00, 0x0C, 0x00, 0x32, 0x10}, + {0xd0, 0x40, 0x0C, 0x00, 0x0C, 0x01, 0x32, 0x10}, {0xd0, 0x40, 0x10, 0x00, 0x01, 0x00, 0x63, 0x10}, {0xa0, 0x40, 0x15, 0x70, 0x01, 0x00, 0x63, 0x10}, {0xa0, 0x40, 0x18, 0x00, 0x01, 0x00, 0x63, 0x10}, {0xa0, 0x40, 0x11, 0x01, 0x01, 0x00, 0x63, 0x10}, {0xa0, 0x40, 0x03, 0x56, 0x01, 0x00, 0x63, 0x10}, {0xa0, 0x40, 0x11, 0x01, 0x01, 0x00, 0x63, 0x10}, - {0xb0, 0x40, 0x04, 0x07, 0x2a, 0x00, 0x63, 0x10}, - {0xb0, 0x40, 0x0e, 0x00, 0x3d, 0x00, 0x63, 0x10}, - - {0xa0, 0x40, 0x11, 0x01, 0x3d, 0x00, 0x63, 0x16}, - {0xa0, 0x40, 0x10, 0x08, 0x3d, 0x00, 0x63, 0x15}, - {0xa0, 0x40, 0x02, 0x04, 0x3d, 0x00, 0x63, 0x16}, - {0xa0, 0x40, 0x11, 0x01, 0x3d, 0x00, 0x63, 0x16}, - {0xb0, 0x40, 0x0e, 0x00, 0x31, 0x00, 0x63, 0x16}, - {0xa0, 0x40, 0x11, 0x01, 0x31, 0x00, 0x63, 0x16}, - {0xa0, 0x40, 0x10, 0x0e, 0x31, 0x00, 0x63, 0x15}, - {0xa0, 0x40, 0x11, 0x01, 0x31, 0x00, 0x63, 0x16}, }; static const __u8 initTas5110c[] = { @@ -524,8 +534,8 @@ SENS(initOv7630, initOv7630_3, ov7630_sensor_init, NULL, ov7630_sensor_init_3, F_GAIN, 0, 0x21), SENS(initPas106, NULL, pas106_sensor_init, NULL, NULL, F_SIF, NO_EXPO|NO_FREQ, 0), -SENS(initPas202, initPas202, pas202_sensor_init, NULL, NULL, 0, - NO_EXPO|NO_FREQ, 0), +SENS(initPas202, initPas202, pas202_sensor_init, NULL, NULL, F_GAIN, + NO_FREQ, 0), SENS(initTas5110c, NULL, tas5110_sensor_init, NULL, NULL, F_GAIN|F_SIF|F_COARSE_EXPO, NO_BRIGHTNESS|NO_FREQ, 0), SENS(initTas5110d, NULL, tas5110_sensor_init, NULL, NULL, @@ -633,27 +643,20 @@ static void setbrightness(struct gspca_dev *gspca_dev) break; } case SENSOR_PAS202: { - /* __u8 i2cpexpo1[] = - {0xb0, 0x40, 0x04, 0x07, 0x2a, 0x00, 0x63, 0x16}; */ - __u8 i2cpexpo[] = - {0xb0, 0x40, 0x0e, 0x01, 0xab, 0x00, 0x63, 0x16}; - __u8 i2cp202[] = - {0xa0, 0x40, 0x10, 0x0e, 0x31, 0x00, 0x63, 0x15}; - static __u8 i2cpdoit[] = - {0xa0, 0x40, 0x11, 0x01, 0x31, 0x00, 0x63, 0x16}; - - /* change reg 0x10 */ - i2cpexpo[4] = 0xff - sd->brightness; -/* if(i2c_w(gspca_dev,i2cpexpo1) < 0) - goto err; */ -/* if(i2c_w(gspca_dev,i2cpdoit) < 0) - goto err; */ - if (i2c_w(gspca_dev, i2cpexpo) < 0) - goto err; - if (i2c_w(gspca_dev, i2cpdoit) < 0) - goto err; - i2cp202[3] = sd->brightness >> 3; - if (i2c_w(gspca_dev, i2cp202) < 0) + __u8 i2cpbright[] = + {0xb0, 0x40, 0x0b, 0x00, 0x00, 0x00, 0x00, 0x16}; + const __u8 i2cpdoit[] = + {0xa0, 0x40, 0x11, 0x01, 0x00, 0x00, 0x00, 0x16}; + + if (sd->brightness < 127) { + /* change reg 0x0b, signreg */ + i2cpbright[3] = 0x01; + /* set reg 0x0c, offset */ + i2cpbright[4] = 127 - sd->brightness; + } else + i2cpbright[4] = sd->brightness - 127; + + if (i2c_w(gspca_dev, i2cpbright) < 0) goto err; if (i2c_w(gspca_dev, i2cpdoit) < 0) goto err; @@ -706,6 +709,27 @@ static void setsensorgain(struct gspca_dev *gspca_dev) goto err; break; } + case SENSOR_PAS202: { + __u8 i2cpgain[] = + {0xa0, 0x40, 0x10, 0x00, 0x00, 0x00, 0x63, 0x15}; + __u8 i2cpcolorgain[] = + {0xc0, 0x40, 0x07, 0x00, 0x00, 0x00, 0x00, 0x15}; + const __u8 i2cpdoit[] = + {0xa0, 0x40, 0x11, 0x01, 0x00, 0x00, 0x63, 0x16}; + + i2cpgain[3] = sd->gain >> 3; + i2cpcolorgain[3] = sd->gain >> 4; + i2cpcolorgain[4] = sd->gain >> 4; + i2cpcolorgain[5] = sd->gain >> 4; + + if (i2c_w(gspca_dev, i2cpgain) < 0) + goto err; + if (i2c_w(gspca_dev, i2cpcolorgain) < 0) + goto err; + if (i2c_w(gspca_dev, i2cpdoit) < 0) + goto err; + break; + } } return; err: @@ -779,7 +803,7 @@ static void setexposure(struct gspca_dev *gspca_dev) } else reg10_max = 0x41; - reg11 = (30 * sd->exposure + 999) / 1000; + reg11 = (15 * sd->exposure + 999) / 1000; if (reg11 < 1) reg11 = 1; else if (reg11 > 16) @@ -791,8 +815,8 @@ static void setexposure(struct gspca_dev *gspca_dev) reg11 = 3; /* frame exposure time in ms = 1000 * reg11 / 30 -> - reg10 = sd->exposure * reg10_max / (1000 * reg11 / 30) */ - reg10 = (sd->exposure * 30 * reg10_max) / (1000 * reg11); + reg10 = (sd->exposure / 2) * reg10_max / (1000 * reg11 / 30) */ + reg10 = (sd->exposure * 15 * reg10_max) / (1000 * reg11); /* Don't allow this to get below 10 when using autogain, the steps become very large (relatively) when below 10 causing @@ -815,10 +839,53 @@ static void setexposure(struct gspca_dev *gspca_dev) if (i2c_w(gspca_dev, i2c) == 0) sd->reg11 = reg11; else - PDEBUG(D_ERR, "i2c error exposure"); + goto err; + break; + } + case SENSOR_PAS202: { + __u8 i2cpframerate[] = + {0xb0, 0x40, 0x04, 0x00, 0x00, 0x00, 0x00, 0x16}; + __u8 i2cpexpo[] = + {0xa0, 0x40, 0x0f, 0x00, 0x00, 0x00, 0x00, 0x16}; + const __u8 i2cpdoit[] = + {0xa0, 0x40, 0x11, 0x01, 0x00, 0x00, 0x00, 0x16}; + int framerate_ctrl; + + /* The exposure knee for the autogain algorithm is 200 + (100 ms / 10 fps on other sensors), for values below this + use the control for setting the partial frame expose time, + above that use variable framerate. This way we run at max + framerate (640x480@7.5 fps, 320x240@10fps) until the knee + is reached. Using the variable framerate control above 200 + is better then playing around with both clockdiv + partial + frame exposure times (like we are doing with the ov chips), + as that sometimes leads to jumps in the exposure control, + which are bad for auto exposure. */ + if (sd->exposure < 200) { + i2cpexpo[3] = 255 - (sd->exposure * 255) / 200; + framerate_ctrl = 500; + } else { + /* The PAS202's exposure control goes from 0 - 4095, + but anything below 500 causes vsync issues, so scale + our 200-1023 to 500-4095 */ + framerate_ctrl = (sd->exposure - 200) * 1000 / 229 + + 500; + } + + i2cpframerate[3] = framerate_ctrl >> 6; + i2cpframerate[4] = framerate_ctrl & 0x3f; + if (i2c_w(gspca_dev, i2cpframerate) < 0) + goto err; + if (i2c_w(gspca_dev, i2cpexpo) < 0) + goto err; + if (i2c_w(gspca_dev, i2cpdoit) < 0) + goto err; break; } } + return; +err: + PDEBUG(D_ERR, "i2c error exposure"); } static void setfreq(struct gspca_dev *gspca_dev) @@ -965,9 +1032,6 @@ static int sd_start(struct gspca_dev *gspca_dev) reg12_19[6] = sn9c10x[0x18 - 1] | (mode << 4); /* Special cases where reg 17 and or 19 value depends on mode */ switch (sd->sensor) { - case SENSOR_PAS202: - reg12_19[5] = mode ? 0x24 : 0x20; - break; case SENSOR_TAS5130CXX: /* probably not mode specific at all most likely the upper nibble of 0x19 is exposure (clock divider) just as with @@ -1003,6 +1067,16 @@ static int sd_start(struct gspca_dev *gspca_dev) sensor_data[sd->sensor].sensor_bridge_init_size[ sd->bridge]); + /* Mode specific sensor setup */ + switch (sd->sensor) { + case SENSOR_PAS202: { + const __u8 i2cpclockdiv[] = + {0xa0, 0x40, 0x02, 0x03, 0x00, 0x00, 0x00, 0x10}; + /* clockdiv from 4 to 3 (7.5 -> 10 fps) when in low res mode */ + if (mode) + i2c_w(gspca_dev, i2cpclockdiv); + } + } /* H_size V_size 0x28, 0x1e -> 640x480. 0x16, 0x12 -> 352x288 */ reg_w(gspca_dev, 0x15, ®12_19[3], 2); /* compression register */ |