diff options
| -rw-r--r-- | drivers/media/video/gspca/pac7302.c | 371 |
1 files changed, 149 insertions, 222 deletions
diff --git a/drivers/media/video/gspca/pac7302.c b/drivers/media/video/gspca/pac7302.c index a0369a58c4b..f5133cfb155 100644 --- a/drivers/media/video/gspca/pac7302.c +++ b/drivers/media/video/gspca/pac7302.c @@ -84,31 +84,31 @@ /* Include pac common sof detection functions */ #include "pac_common.h" +#define PAC7302_GAIN_DEFAULT 15 +#define PAC7302_GAIN_KNEE 42 +#define PAC7302_EXPOSURE_DEFAULT 66 /* 33 ms / 30 fps */ +#define PAC7302_EXPOSURE_KNEE 133 /* 66 ms / 15 fps */ + MODULE_AUTHOR("Jean-Francois Moine <http://moinejf.free.fr>, " "Thomas Kaiser thomas@kaiser-linux.li"); MODULE_DESCRIPTION("Pixart PAC7302"); MODULE_LICENSE("GPL"); -enum e_ctrl { - BRIGHTNESS, - CONTRAST, - COLORS, - WHITE_BALANCE, - RED_BALANCE, - BLUE_BALANCE, - GAIN, - AUTOGAIN, - EXPOSURE, - VFLIP, - HFLIP, - NCTRLS /* number of controls */ -}; - struct sd { struct gspca_dev gspca_dev; /* !! must be the first item */ - struct gspca_ctrl ctrls[NCTRLS]; - + struct { /* brightness / contrast cluster */ + struct v4l2_ctrl *brightness; + struct v4l2_ctrl *contrast; + }; + struct v4l2_ctrl *saturation; + struct v4l2_ctrl *white_balance; + struct v4l2_ctrl *red_balance; + struct v4l2_ctrl *blue_balance; + struct { /* flip cluster */ + struct v4l2_ctrl *hflip; + struct v4l2_ctrl *vflip; + }; u8 flags; #define FL_HFLIP 0x01 /* mirrored by default */ #define FL_VFLIP 0x02 /* vertical flipped by default */ @@ -119,160 +119,6 @@ struct sd { atomic_t avg_lum; }; -/* V4L2 controls supported by the driver */ -static void setbrightcont(struct gspca_dev *gspca_dev); -static void setcolors(struct gspca_dev *gspca_dev); -static void setwhitebalance(struct gspca_dev *gspca_dev); -static void setredbalance(struct gspca_dev *gspca_dev); -static void setbluebalance(struct gspca_dev *gspca_dev); -static void setgain(struct gspca_dev *gspca_dev); -static void setexposure(struct gspca_dev *gspca_dev); -static void setautogain(struct gspca_dev *gspca_dev); -static void sethvflip(struct gspca_dev *gspca_dev); - -static const struct ctrl sd_ctrls[] = { -[BRIGHTNESS] = { - { - .id = V4L2_CID_BRIGHTNESS, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Brightness", - .minimum = 0, -#define BRIGHTNESS_MAX 0x20 - .maximum = BRIGHTNESS_MAX, - .step = 1, - .default_value = 0x10, - }, - .set_control = setbrightcont - }, -[CONTRAST] = { - { - .id = V4L2_CID_CONTRAST, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Contrast", - .minimum = 0, -#define CONTRAST_MAX 255 - .maximum = CONTRAST_MAX, - .step = 1, - .default_value = 127, - }, - .set_control = setbrightcont - }, -[COLORS] = { - { - .id = V4L2_CID_SATURATION, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Saturation", - .minimum = 0, -#define COLOR_MAX 255 - .maximum = COLOR_MAX, - .step = 1, - .default_value = 127 - }, - .set_control = setcolors - }, -[WHITE_BALANCE] = { - { - .id = V4L2_CID_WHITE_BALANCE_TEMPERATURE, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "White Balance", - .minimum = 0, - .maximum = 255, - .step = 1, - .default_value = 4, - }, - .set_control = setwhitebalance - }, -[RED_BALANCE] = { - { - .id = V4L2_CID_RED_BALANCE, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Red", - .minimum = 0, - .maximum = 3, - .step = 1, - .default_value = 1, - }, - .set_control = setredbalance - }, -[BLUE_BALANCE] = { - { - .id = V4L2_CID_BLUE_BALANCE, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Blue", - .minimum = 0, - .maximum = 3, - .step = 1, - .default_value = 1, - }, - .set_control = setbluebalance - }, -[GAIN] = { - { - .id = V4L2_CID_GAIN, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Gain", - .minimum = 0, - .maximum = 62, - .step = 1, -#define GAIN_DEF 15 -#define GAIN_KNEE 46 - .default_value = GAIN_DEF, - }, - .set_control = setgain - }, -[EXPOSURE] = { - { - .id = V4L2_CID_EXPOSURE, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Exposure", - .minimum = 0, - .maximum = 1023, - .step = 1, -#define EXPOSURE_DEF 66 /* 33 ms / 30 fps */ -#define EXPOSURE_KNEE 133 /* 66 ms / 15 fps */ - .default_value = EXPOSURE_DEF, - }, - .set_control = setexposure - }, -[AUTOGAIN] = { - { - .id = V4L2_CID_AUTOGAIN, - .type = V4L2_CTRL_TYPE_BOOLEAN, - .name = "Auto Gain", - .minimum = 0, - .maximum = 1, - .step = 1, -#define AUTOGAIN_DEF 1 - .default_value = AUTOGAIN_DEF, - }, - .set_control = setautogain, - }, -[HFLIP] = { - { - .id = V4L2_CID_HFLIP, - .type = V4L2_CTRL_TYPE_BOOLEAN, - .name = "Mirror", - .minimum = 0, - .maximum = 1, - .step = 1, - .default_value = 0, - }, - .set_control = sethvflip, - }, -[VFLIP] = { - { - .id = V4L2_CID_VFLIP, - .type = V4L2_CTRL_TYPE_BOOLEAN, - .name = "Vflip", - .minimum = 0, - .maximum = 1, - .step = 1, - .default_value = 0, - }, - .set_control = sethvflip - }, -}; - static const struct v4l2_pix_format vga_mode[] = { {640, 480, V4L2_PIX_FMT_PJPG, V4L2_FIELD_NONE, .bytesperline = 640, @@ -516,8 +362,6 @@ static int sd_config(struct gspca_dev *gspca_dev, cam->cam_mode = vga_mode; /* only 640x480 */ cam->nmodes = ARRAY_SIZE(vga_mode); - gspca_dev->cam.ctrls = sd->ctrls; - sd->flags = id->driver_info; return 0; } @@ -536,9 +380,9 @@ static void setbrightcont(struct gspca_dev *gspca_dev) reg_w(gspca_dev, 0xff, 0x00); /* page 0 */ for (i = 0; i < 10; i++) { v = max[i]; - v += (sd->ctrls[BRIGHTNESS].val - BRIGHTNESS_MAX) - * 150 / BRIGHTNESS_MAX; /* 200 ? */ - v -= delta[i] * sd->ctrls[CONTRAST].val / CONTRAST_MAX; + v += (sd->brightness->val - sd->brightness->maximum) + * 150 / sd->brightness->maximum; /* 200 ? */ + v -= delta[i] * sd->contrast->val / sd->contrast->maximum; if (v < 0) v = 0; else if (v > 0xff) @@ -561,7 +405,8 @@ static void setcolors(struct gspca_dev *gspca_dev) reg_w(gspca_dev, 0x11, 0x01); reg_w(gspca_dev, 0xff, 0x00); /* page 0 */ for (i = 0; i < 9; i++) { - v = a[i] * sd->ctrls[COLORS].val / COLOR_MAX + b[i]; + v = a[i] * sd->saturation->val / sd->saturation->maximum; + v += b[i]; reg_w(gspca_dev, 0x0f + 2 * i, (v >> 8) & 0x07); reg_w(gspca_dev, 0x0f + 2 * i + 1, v); } @@ -573,7 +418,7 @@ static void setwhitebalance(struct gspca_dev *gspca_dev) struct sd *sd = (struct sd *) gspca_dev; reg_w(gspca_dev, 0xff, 0x00); /* page 0 */ - reg_w(gspca_dev, 0xc6, sd->ctrls[WHITE_BALANCE].val); + reg_w(gspca_dev, 0xc6, sd->white_balance->val); reg_w(gspca_dev, 0xdc, 0x01); } @@ -583,7 +428,7 @@ static void setredbalance(struct gspca_dev *gspca_dev) struct sd *sd = (struct sd *) gspca_dev; reg_w(gspca_dev, 0xff, 0x00); /* page 0 */ - reg_w(gspca_dev, 0xc5, sd->ctrls[RED_BALANCE].val); + reg_w(gspca_dev, 0xc5, sd->red_balance->val); reg_w(gspca_dev, 0xdc, 0x01); } @@ -593,22 +438,21 @@ static void setbluebalance(struct gspca_dev *gspca_dev) struct sd *sd = (struct sd *) gspca_dev; reg_w(gspca_dev, 0xff, 0x00); /* page 0 */ - reg_w(gspca_dev, 0xc7, sd->ctrls[BLUE_BALANCE].val); + reg_w(gspca_dev, 0xc7, sd->blue_balance->val); reg_w(gspca_dev, 0xdc, 0x01); } static void setgain(struct gspca_dev *gspca_dev) { - struct sd *sd = (struct sd *) gspca_dev; u8 reg10, reg12; - if (sd->ctrls[GAIN].val < 32) { - reg10 = sd->ctrls[GAIN].val; + if (gspca_dev->gain->val < 32) { + reg10 = gspca_dev->gain->val; reg12 = 0; } else { reg10 = 31; - reg12 = sd->ctrls[GAIN].val - 31; + reg12 = gspca_dev->gain->val - 31; } reg_w(gspca_dev, 0xff, 0x03); /* page 3 */ @@ -621,7 +465,6 @@ static void setgain(struct gspca_dev *gspca_dev) static void setexposure(struct gspca_dev *gspca_dev) { - struct sd *sd = (struct sd *) gspca_dev; u8 clockdiv; u16 exposure; @@ -630,7 +473,7 @@ static void setexposure(struct gspca_dev *gspca_dev) * no fps according to the formula: 90 / reg. sd->exposure is the * desired exposure time in 0.5 ms. */ - clockdiv = (90 * sd->ctrls[EXPOSURE].val + 1999) / 2000; + clockdiv = (90 * gspca_dev->exposure->val + 1999) / 2000; /* * Note clockdiv = 3 also works, but when running at 30 fps, depending @@ -655,7 +498,7 @@ static void setexposure(struct gspca_dev *gspca_dev) * frame exposure time in ms = 1000 * clockdiv / 90 -> * exposure = (sd->exposure / 2) * 448 / (1000 * clockdiv / 90) */ - exposure = (sd->ctrls[EXPOSURE].val * 45 * 448) / (1000 * clockdiv); + exposure = (gspca_dev->exposure->val * 45 * 448) / (1000 * clockdiv); /* 0 = use full frametime, 448 = no exposure, reverse it */ exposure = 448 - exposure; @@ -668,37 +511,15 @@ static void setexposure(struct gspca_dev *gspca_dev) reg_w(gspca_dev, 0x11, 0x01); } -static void setautogain(struct gspca_dev *gspca_dev) -{ - struct sd *sd = (struct sd *) gspca_dev; - - /* - * When switching to autogain set defaults to make sure - * we are on a valid point of the autogain gain / - * exposure knee graph, and give this change time to - * take effect before doing autogain. - */ - if (sd->ctrls[AUTOGAIN].val) { - sd->ctrls[EXPOSURE].val = EXPOSURE_DEF; - sd->ctrls[GAIN].val = GAIN_DEF; - sd->autogain_ignore_frames = - PAC_AUTOGAIN_IGNORE_FRAMES; - } else { - sd->autogain_ignore_frames = -1; - } - setexposure(gspca_dev); - setgain(gspca_dev); -} - static void sethvflip(struct gspca_dev *gspca_dev) { struct sd *sd = (struct sd *) gspca_dev; u8 data, hflip, vflip; - hflip = sd->ctrls[HFLIP].val; + hflip = sd->hflip->val; if (sd->flags & FL_HFLIP) hflip = !hflip; - vflip = sd->ctrls[VFLIP].val; + vflip = sd->vflip->val; if (sd->flags & FL_VFLIP) vflip = !vflip; @@ -717,6 +538,112 @@ static int sd_init(struct gspca_dev *gspca_dev) return gspca_dev->usb_err; } +static int sd_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct gspca_dev *gspca_dev = + container_of(ctrl->handler, struct gspca_dev, ctrl_handler); + struct sd *sd = (struct sd *)gspca_dev; + + gspca_dev->usb_err = 0; + + if (ctrl->id == V4L2_CID_AUTOGAIN && ctrl->is_new && ctrl->val) { + /* when switching to autogain set defaults to make sure + we are on a valid point of the autogain gain / + exposure knee graph, and give this change time to + take effect before doing autogain. */ + gspca_dev->exposure->val = PAC7302_EXPOSURE_DEFAULT; + gspca_dev->gain->val = PAC7302_GAIN_DEFAULT; + sd->autogain_ignore_frames = PAC_AUTOGAIN_IGNORE_FRAMES; + } + + if (!gspca_dev->streaming) + return 0; + + switch (ctrl->id) { + case V4L2_CID_BRIGHTNESS: + setbrightcont(gspca_dev); + break; + case V4L2_CID_SATURATION: + setcolors(gspca_dev); + break; + case V4L2_CID_WHITE_BALANCE_TEMPERATURE: + setwhitebalance(gspca_dev); + break; + case V4L2_CID_RED_BALANCE: + setredbalance(gspca_dev); + break; + case V4L2_CID_BLUE_BALANCE: + setbluebalance(gspca_dev); + break; + case V4L2_CID_AUTOGAIN: + if (gspca_dev->exposure->is_new || (ctrl->is_new && ctrl->val)) + setexposure(gspca_dev); + if (gspca_dev->gain->is_new || (ctrl->is_new && ctrl->val)) + setgain(gspca_dev); + break; + case V4L2_CID_HFLIP: + sethvflip(gspca_dev); + break; + default: + return -EINVAL; + } + return gspca_dev->usb_err; +} + +static const struct v4l2_ctrl_ops sd_ctrl_ops = { + .s_ctrl = sd_s_ctrl, +}; + +/* this function is called at probe time */ +static int sd_init_controls(struct gspca_dev *gspca_dev) +{ + struct sd *sd = (struct sd *) gspca_dev; + struct v4l2_ctrl_handler *hdl = &gspca_dev->ctrl_handler; + + gspca_dev->vdev.ctrl_handler = hdl; + v4l2_ctrl_handler_init(hdl, 11); + + sd->brightness = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, + V4L2_CID_BRIGHTNESS, 0, 32, 1, 16); + sd->contrast = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, + V4L2_CID_CONTRAST, 0, 255, 1, 127); + + sd->saturation = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, + V4L2_CID_SATURATION, 0, 255, 1, 127); + sd->white_balance = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, + V4L2_CID_WHITE_BALANCE_TEMPERATURE, + 0, 255, 1, 4); + sd->red_balance = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, + V4L2_CID_RED_BALANCE, 0, 3, 1, 1); + sd->blue_balance = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, + V4L2_CID_RED_BALANCE, 0, 3, 1, 1); + + gspca_dev->autogain = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, + V4L2_CID_AUTOGAIN, 0, 1, 1, 1); + gspca_dev->exposure = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, + V4L2_CID_EXPOSURE, 0, 1023, 1, + PAC7302_EXPOSURE_DEFAULT); + gspca_dev->gain = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, + V4L2_CID_GAIN, 0, 62, 1, + PAC7302_GAIN_DEFAULT); + + sd->hflip = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, + V4L2_CID_HFLIP, 0, 1, 1, 0); + sd->vflip = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, + V4L2_CID_VFLIP, 0, 1, 1, 0); + + if (hdl->error) { + pr_err("Could not initialize controls\n"); + return hdl->error; + } + + v4l2_ctrl_cluster(2, &sd->brightness); + v4l2_ctrl_auto_cluster(3, &gspca_dev->autogain, 0, false); + v4l2_ctrl_cluster(2, &sd->hflip); + return 0; +} + +/* -- start the camera -- */ static int sd_start(struct gspca_dev *gspca_dev) { struct sd *sd = (struct sd *) gspca_dev; @@ -728,11 +655,13 @@ static int sd_start(struct gspca_dev *gspca_dev) setwhitebalance(gspca_dev); setredbalance(gspca_dev); setbluebalance(gspca_dev); - setautogain(gspca_dev); + setexposure(gspca_dev); + setgain(gspca_dev); sethvflip(gspca_dev); sd->sof_read = 0; - atomic_set(&sd->avg_lum, 270 + sd->ctrls[BRIGHTNESS].val); + sd->autogain_ignore_frames = 0; + atomic_set(&sd->avg_lum, 270 + sd->brightness->val); /* start stream */ reg_w(gspca_dev, 0xff, 0x01); @@ -758,9 +687,6 @@ static void sd_stop0(struct gspca_dev *gspca_dev) reg_w(gspca_dev, 0x78, 0x40); } -#define WANT_REGULAR_AUTOGAIN -#include "autogain_functions.h" - static void do_autogain(struct gspca_dev *gspca_dev) { struct sd *sd = (struct sd *) gspca_dev; @@ -774,11 +700,13 @@ static void do_autogain(struct gspca_dev *gspca_dev) if (sd->autogain_ignore_frames > 0) { sd->autogain_ignore_frames--; } else { - desired_lum = 270 + sd->ctrls[BRIGHTNESS].val; + desired_lum = 270 + sd->brightness->val; - auto_gain_n_exposure(gspca_dev, avg_lum, desired_lum, - deadzone, GAIN_KNEE, EXPOSURE_KNEE); - sd->autogain_ignore_frames = PAC_AUTOGAIN_IGNORE_FRAMES; + if (gspca_expo_autogain(gspca_dev, avg_lum, desired_lum, + deadzone, PAC7302_GAIN_KNEE, + PAC7302_EXPOSURE_KNEE)) + sd->autogain_ignore_frames = + PAC_AUTOGAIN_IGNORE_FRAMES; } } @@ -944,10 +872,9 @@ static int sd_int_pkt_scan(struct gspca_dev *gspca_dev, /* sub-driver description for pac7302 */ static const struct sd_desc sd_desc = { .name = KBUILD_MODNAME, - .ctrls = sd_ctrls, - .nctrls = ARRAY_SIZE(sd_ctrls), .config = sd_config, .init = sd_init, + .init_controls = sd_init_controls, .start = sd_start, .stopN = sd_stopN, .stop0 = sd_stop0, |