diff options
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/video/gspca/se401.c | 184 |
1 files changed, 73 insertions, 111 deletions
diff --git a/drivers/media/video/gspca/se401.c b/drivers/media/video/gspca/se401.c index bb70092c2229..17e7f89a1122 100644 --- a/drivers/media/video/gspca/se401.c +++ b/drivers/media/video/gspca/se401.c @@ -45,15 +45,6 @@ MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>"); MODULE_DESCRIPTION("Endpoints se401"); MODULE_LICENSE("GPL"); -/* controls */ -enum e_ctrl { - BRIGHTNESS, - GAIN, - EXPOSURE, - FREQ, - NCTRL /* number of controls */ -}; - /* exposure change state machine states */ enum { EXPO_CHANGED, @@ -64,7 +55,11 @@ enum { /* specific webcam descriptor */ struct sd { struct gspca_dev gspca_dev; /* !! must be the first item */ - struct gspca_ctrl ctrls[NCTRL]; + struct { /* exposure/freq control cluster */ + struct v4l2_ctrl *exposure; + struct v4l2_ctrl *freq; + }; + bool has_brightness; struct v4l2_pix_format fmts[MAX_MODES]; int pixels_read; int packet_read; @@ -77,60 +72,6 @@ struct sd { int expo_change_state; }; -static void setbrightness(struct gspca_dev *gspca_dev); -static void setgain(struct gspca_dev *gspca_dev); -static void setexposure(struct gspca_dev *gspca_dev); - -static const struct ctrl sd_ctrls[NCTRL] = { -[BRIGHTNESS] = { - { - .id = V4L2_CID_BRIGHTNESS, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Brightness", - .minimum = 0, - .maximum = 255, - .step = 1, - .default_value = 15, - }, - .set_control = setbrightness - }, -[GAIN] = { - { - .id = V4L2_CID_GAIN, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Gain", - .minimum = 0, - .maximum = 50, /* Really 63 but > 50 is not pretty */ - .step = 1, - .default_value = 25, - }, - .set_control = setgain - }, -[EXPOSURE] = { - { - .id = V4L2_CID_EXPOSURE, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Exposure", - .minimum = 0, - .maximum = 32767, - .step = 1, - .default_value = 15000, - }, - .set_control = setexposure - }, -[FREQ] = { - { - .id = V4L2_CID_POWER_LINE_FREQUENCY, - .type = V4L2_CTRL_TYPE_MENU, - .name = "Light frequency filter", - .minimum = 0, - .maximum = 2, - .step = 1, - .default_value = 0, - }, - .set_control = setexposure - }, -}; static void se401_write_req(struct gspca_dev *gspca_dev, u16 req, u16 value, int silent) @@ -224,22 +165,15 @@ static int se401_get_feature(struct gspca_dev *gspca_dev, u16 selector) return gspca_dev->usb_buf[0] | (gspca_dev->usb_buf[1] << 8); } -static void setbrightness(struct gspca_dev *gspca_dev) +static void setbrightness(struct gspca_dev *gspca_dev, s32 val) { - struct sd *sd = (struct sd *) gspca_dev; - - if (gspca_dev->ctrl_dis & (1 << BRIGHTNESS)) - return; - /* HDG: this does not seem to do anything on my cam */ - se401_write_req(gspca_dev, SE401_REQ_SET_BRT, - sd->ctrls[BRIGHTNESS].val, 0); + se401_write_req(gspca_dev, SE401_REQ_SET_BRT, val, 0); } -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; - u16 gain = 63 - sd->ctrls[GAIN].val; + u16 gain = 63 - val; /* red color gain */ se401_set_feature(gspca_dev, HV7131_REG_ARCG, gain); @@ -249,10 +183,10 @@ static void setgain(struct gspca_dev *gspca_dev) se401_set_feature(gspca_dev, HV7131_REG_ABCG, gain); } -static void setexposure(struct gspca_dev *gspca_dev) +static void setexposure(struct gspca_dev *gspca_dev, s32 val, s32 freq) { struct sd *sd = (struct sd *) gspca_dev; - int integration = sd->ctrls[EXPOSURE].val << 6; + int integration = val << 6; u8 expose_h, expose_m, expose_l; /* Do this before the set_feature calls, for proper timing wrt @@ -262,9 +196,9 @@ static void setexposure(struct gspca_dev *gspca_dev) through so be it */ sd->expo_change_state = EXPO_CHANGED; - if (sd->ctrls[FREQ].val == V4L2_CID_POWER_LINE_FREQUENCY_50HZ) + if (freq == V4L2_CID_POWER_LINE_FREQUENCY_50HZ) integration = integration - integration % 106667; - if (sd->ctrls[FREQ].val == V4L2_CID_POWER_LINE_FREQUENCY_60HZ) + if (freq == V4L2_CID_POWER_LINE_FREQUENCY_60HZ) integration = integration - integration % 88889; expose_h = (integration >> 16); @@ -375,15 +309,12 @@ static int sd_config(struct gspca_dev *gspca_dev, cam->bulk = 1; cam->bulk_size = BULK_SIZE; cam->bulk_nurbs = 4; - cam->ctrls = sd->ctrls; sd->resetlevel = 0x2d; /* Set initial resetlevel */ /* See if the camera supports brightness */ se401_read_req(gspca_dev, SE401_REQ_GET_BRT, 1); - if (gspca_dev->usb_err) { - gspca_dev->ctrl_dis = (1 << BRIGHTNESS); - gspca_dev->usb_err = 0; - } + sd->has_brightness = !!gspca_dev->usb_err; + gspca_dev->usb_err = 0; return 0; } @@ -442,9 +373,7 @@ static int sd_start(struct gspca_dev *gspca_dev) } se401_set_feature(gspca_dev, SE401_OPERATINGMODE, mode); - setbrightness(gspca_dev); - setgain(gspca_dev); - setexposure(gspca_dev); + v4l2_ctrl_handler_setup(&gspca_dev->ctrl_handler); se401_set_feature(gspca_dev, HV7131_REG_ARLV, sd->resetlevel); sd->packet_read = 0; @@ -666,27 +595,6 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev, u8 *data, int len) sd_pkt_scan_janggu(gspca_dev, data, len); } -static int sd_querymenu(struct gspca_dev *gspca_dev, - struct v4l2_querymenu *menu) -{ - switch (menu->id) { - case V4L2_CID_POWER_LINE_FREQUENCY: - switch (menu->index) { - case V4L2_CID_POWER_LINE_FREQUENCY_DISABLED: - strcpy((char *) menu->name, "NoFliker"); - return 0; - case V4L2_CID_POWER_LINE_FREQUENCY_50HZ: - strcpy((char *) menu->name, "50 Hz"); - return 0; - case V4L2_CID_POWER_LINE_FREQUENCY_60HZ: - strcpy((char *) menu->name, "60 Hz"); - return 0; - } - break; - } - return -EINVAL; -} - #if defined(CONFIG_INPUT) || defined(CONFIG_INPUT_MODULE) static int sd_int_pkt_scan(struct gspca_dev *gspca_dev, u8 *data, int len) { @@ -714,19 +622,73 @@ static int sd_int_pkt_scan(struct gspca_dev *gspca_dev, u8 *data, int len) } #endif +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 (!gspca_dev->streaming) + return 0; + + switch (ctrl->id) { + case V4L2_CID_BRIGHTNESS: + setbrightness(gspca_dev, ctrl->val); + break; + case V4L2_CID_GAIN: + setgain(gspca_dev, ctrl->val); + break; + case V4L2_CID_EXPOSURE: + setexposure(gspca_dev, ctrl->val, sd->freq->val); + break; + } + return gspca_dev->usb_err; +} + +static const struct v4l2_ctrl_ops sd_ctrl_ops = { + .s_ctrl = sd_s_ctrl, +}; + +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, 4); + if (sd->has_brightness) + v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, + V4L2_CID_BRIGHTNESS, 0, 255, 1, 15); + /* max is really 63 but > 50 is not pretty */ + v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, + V4L2_CID_GAIN, 0, 50, 1, 25); + sd->exposure = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, + V4L2_CID_EXPOSURE, 0, 32767, 1, 15000); + sd->freq = v4l2_ctrl_new_std_menu(hdl, &sd_ctrl_ops, + V4L2_CID_POWER_LINE_FREQUENCY, + V4L2_CID_POWER_LINE_FREQUENCY_60HZ, 0, 0); + + if (hdl->error) { + pr_err("Could not initialize controls\n"); + return hdl->error; + } + v4l2_ctrl_cluster(2, &sd->exposure); + 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, .isoc_init = sd_isoc_init, .start = sd_start, .stopN = sd_stopN, .dq_callback = sd_dq_callback, .pkt_scan = sd_pkt_scan, - .querymenu = sd_querymenu, #if defined(CONFIG_INPUT) || defined(CONFIG_INPUT_MODULE) .int_pkt_scan = sd_int_pkt_scan, #endif |