diff options
| -rw-r--r-- | drivers/media/video/gspca/tv8532.c | 124 |
1 files changed, 41 insertions, 83 deletions
diff --git a/drivers/media/video/gspca/tv8532.c b/drivers/media/video/gspca/tv8532.c index c8922c5..8baa03f 100644 --- a/drivers/media/video/gspca/tv8532.c +++ b/drivers/media/video/gspca/tv8532.c @@ -30,49 +30,9 @@ MODULE_LICENSE("GPL"); struct sd { struct gspca_dev gspca_dev; /* !! must be the first item */ - __u16 exposure; - __u16 gain; - __u8 packet; }; -/* V4L2 controls supported by the driver */ -static int sd_setexposure(struct gspca_dev *gspca_dev, __s32 val); -static int sd_getexposure(struct gspca_dev *gspca_dev, __s32 *val); -static int sd_setgain(struct gspca_dev *gspca_dev, __s32 val); -static int sd_getgain(struct gspca_dev *gspca_dev, __s32 *val); - -static const struct ctrl sd_ctrls[] = { - { - { - .id = V4L2_CID_EXPOSURE, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Exposure", - .minimum = 1, - .maximum = 0x18f, - .step = 1, -#define EXPOSURE_DEF 0x18f - .default_value = EXPOSURE_DEF, - }, - .set = sd_setexposure, - .get = sd_getexposure, - }, - { - { - .id = V4L2_CID_GAIN, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Gain", - .minimum = 0, - .maximum = 0x7ff, - .step = 1, -#define GAIN_DEF 0x100 - .default_value = GAIN_DEF, - }, - .set = sd_setgain, - .get = sd_getgain, - }, -}; - static const struct v4l2_pix_format sif_mode[] = { {176, 144, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE, .bytesperline = 176, @@ -202,15 +162,12 @@ static void tv_8532WriteEEprom(struct gspca_dev *gspca_dev) static int sd_config(struct gspca_dev *gspca_dev, const struct usb_device_id *id) { - struct sd *sd = (struct sd *) gspca_dev; struct cam *cam; cam = &gspca_dev->cam; cam->cam_mode = sif_mode; cam->nmodes = ARRAY_SIZE(sif_mode); - sd->exposure = EXPOSURE_DEF; - sd->gain = GAIN_DEF; return 0; } @@ -241,23 +198,19 @@ static int sd_init(struct gspca_dev *gspca_dev) return 0; } -static void setexposure(struct gspca_dev *gspca_dev) +static void setexposure(struct gspca_dev *gspca_dev, s32 val) { - struct sd *sd = (struct sd *) gspca_dev; - - reg_w2(gspca_dev, R1C_AD_EXPOSE_TIMEL, sd->exposure); + reg_w2(gspca_dev, R1C_AD_EXPOSE_TIMEL, val); reg_w1(gspca_dev, R00_PART_CONTROL, LATENT_CHANGE | EXPO_CHANGE); /* 0x84 */ } -static void setgain(struct gspca_dev *gspca_dev) +static void setgain(struct gspca_dev *gspca_dev, s32 val) { - struct sd *sd = (struct sd *) gspca_dev; - - reg_w2(gspca_dev, R20_GAIN_G1L, sd->gain); - reg_w2(gspca_dev, R22_GAIN_RL, sd->gain); - reg_w2(gspca_dev, R24_GAIN_BL, sd->gain); - reg_w2(gspca_dev, R26_GAIN_G2L, sd->gain); + reg_w2(gspca_dev, R20_GAIN_G1L, val); + reg_w2(gspca_dev, R22_GAIN_RL, val); + reg_w2(gspca_dev, R24_GAIN_BL, val); + reg_w2(gspca_dev, R26_GAIN_G2L, val); } /* -- start the camera -- */ @@ -289,8 +242,7 @@ static int sd_start(struct gspca_dev *gspca_dev) tv_8532_setReg(gspca_dev); - setexposure(gspca_dev); - setgain(gspca_dev); + v4l2_ctrl_handler_setup(&gspca_dev->ctrl_handler); /************************************************/ reg_w1(gspca_dev, R31_UPD, 0x01); /* update registers */ @@ -339,49 +291,55 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev, data + gspca_dev->width + 5, gspca_dev->width); } -static int sd_setexposure(struct gspca_dev *gspca_dev, __s32 val) +static int sd_s_ctrl(struct v4l2_ctrl *ctrl) { - struct sd *sd = (struct sd *) gspca_dev; + struct gspca_dev *gspca_dev = + container_of(ctrl->handler, struct gspca_dev, ctrl_handler); - sd->exposure = val; - if (gspca_dev->streaming) - setexposure(gspca_dev); - return 0; -} + gspca_dev->usb_err = 0; -static int sd_getexposure(struct gspca_dev *gspca_dev, __s32 *val) -{ - struct sd *sd = (struct sd *) gspca_dev; + if (!gspca_dev->streaming) + return 0; - *val = sd->exposure; - return 0; + switch (ctrl->id) { + case V4L2_CID_EXPOSURE: + setexposure(gspca_dev, ctrl->val); + break; + case V4L2_CID_GAIN: + setgain(gspca_dev, ctrl->val); + break; + } + return gspca_dev->usb_err; } -static int sd_setgain(struct gspca_dev *gspca_dev, __s32 val) -{ - struct sd *sd = (struct sd *) gspca_dev; - - sd->gain = val; - if (gspca_dev->streaming) - setgain(gspca_dev); - return 0; -} +static const struct v4l2_ctrl_ops sd_ctrl_ops = { + .s_ctrl = sd_s_ctrl, +}; -static int sd_getgain(struct gspca_dev *gspca_dev, __s32 *val) +static int sd_init_controls(struct gspca_dev *gspca_dev) { - struct sd *sd = (struct sd *) gspca_dev; - - *val = sd->gain; + struct v4l2_ctrl_handler *hdl = &gspca_dev->ctrl_handler; + + gspca_dev->vdev.ctrl_handler = hdl; + v4l2_ctrl_handler_init(hdl, 2); + v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, + V4L2_CID_EXPOSURE, 0, 0x18f, 1, 0x18f); + v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, + V4L2_CID_GAIN, 0, 0x7ff, 1, 0x100); + + if (hdl->error) { + pr_err("Could not initialize controls\n"); + return hdl->error; + } return 0; } /* sub-driver description */ static const struct sd_desc sd_desc = { .name = MODULE_NAME, - .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, .pkt_scan = sd_pkt_scan, |