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path: root/drivers/media/video/gspca/nw80x.c
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Diffstat (limited to 'drivers/media/video/gspca/nw80x.c')
-rw-r--r--drivers/media/video/gspca/nw80x.c203
1 files changed, 87 insertions, 116 deletions
diff --git a/drivers/media/video/gspca/nw80x.c b/drivers/media/video/gspca/nw80x.c
index 42e021931e60..44c9964b1b3e 100644
--- a/drivers/media/video/gspca/nw80x.c
+++ b/drivers/media/video/gspca/nw80x.c
@@ -32,22 +32,10 @@ MODULE_LICENSE("GPL");
static int webcam;
-/* controls */
-enum e_ctrl {
- GAIN,
- EXPOSURE,
- AUTOGAIN,
- NCTRLS /* number of controls */
-};
-
-#define AUTOGAIN_DEF 1
-
/* specific webcam descriptor */
struct sd {
struct gspca_dev gspca_dev; /* !! must be the first item */
- struct gspca_ctrl ctrls[NCTRLS];
-
u32 ae_res;
s8 ag_cnt;
#define AG_CNT_START 13
@@ -1667,17 +1655,13 @@ static int swap_bits(int v)
return r;
}
-static void setgain(struct gspca_dev *gspca_dev)
+static void setgain(struct gspca_dev *gspca_dev, u8 val)
{
struct sd *sd = (struct sd *) gspca_dev;
- u8 val, v[2];
+ u8 v[2];
- val = sd->ctrls[GAIN].val;
switch (sd->webcam) {
case P35u:
- /* Note the control goes from 0-255 not 0-127, but anything
- above 127 just means amplifying noise */
- val >>= 1; /* 0 - 255 -> 0 - 127 */
reg_w(gspca_dev, 0x1026, &val, 1);
break;
case Kr651us:
@@ -1690,13 +1674,11 @@ static void setgain(struct gspca_dev *gspca_dev)
}
}
-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;
- s16 val;
u8 v[2];
- val = sd->ctrls[EXPOSURE].val;
switch (sd->webcam) {
case P35u:
v[0] = ((9 - val) << 3) | 0x01;
@@ -1713,14 +1695,12 @@ static void setexposure(struct gspca_dev *gspca_dev)
}
}
-static void setautogain(struct gspca_dev *gspca_dev)
+static void setautogain(struct gspca_dev *gspca_dev, s32 val)
{
struct sd *sd = (struct sd *) gspca_dev;
int w, h;
- if (gspca_dev->ctrl_dis & (1 << AUTOGAIN))
- return;
- if (!sd->ctrls[AUTOGAIN].val) {
+ if (!val) {
sd->ag_cnt = -1;
return;
}
@@ -1763,7 +1743,6 @@ static int sd_config(struct gspca_dev *gspca_dev,
if ((unsigned) webcam >= NWEBCAMS)
webcam = 0;
sd->webcam = webcam;
- gspca_dev->cam.ctrls = sd->ctrls;
gspca_dev->cam.needs_full_bandwidth = 1;
sd->ag_cnt = -1;
@@ -1834,33 +1813,7 @@ static int sd_config(struct gspca_dev *gspca_dev,
break;
}
}
- switch (sd->webcam) {
- case P35u:
-/* sd->ctrls[EXPOSURE].max = 9;
- * sd->ctrls[EXPOSURE].def = 9; */
- /* coarse expo auto gain function gain minimum, to avoid
- * a large settings jump the first auto adjustment */
- sd->ctrls[GAIN].def = 255 / 5 * 2;
- break;
- case Cvideopro:
- case DvcV6:
- case Kritter:
- gspca_dev->ctrl_dis = (1 << GAIN) | (1 << AUTOGAIN);
- /* fall thru */
- case Kr651us:
- sd->ctrls[EXPOSURE].max = 315;
- sd->ctrls[EXPOSURE].def = 150;
- break;
- default:
- gspca_dev->ctrl_dis = (1 << GAIN) | (1 << EXPOSURE)
- | (1 << AUTOGAIN);
- break;
- }
-#if AUTOGAIN_DEF
- if (!(gspca_dev->ctrl_dis & (1 << AUTOGAIN)))
- gspca_dev->ctrl_inac = (1 << GAIN) | (1 << EXPOSURE);
-#endif
return gspca_dev->usb_err;
}
@@ -1925,9 +1878,6 @@ static int sd_start(struct gspca_dev *gspca_dev)
break;
}
- setgain(gspca_dev);
- setexposure(gspca_dev);
- setautogain(gspca_dev);
sd->exp_too_high_cnt = 0;
sd->exp_too_low_cnt = 0;
return gspca_dev->usb_err;
@@ -1987,24 +1937,6 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev,
}
}
-static int sd_setautogain(struct gspca_dev *gspca_dev, __s32 val)
-{
- struct sd *sd = (struct sd *) gspca_dev;
-
- sd->ctrls[AUTOGAIN].val = val;
- if (val)
- gspca_dev->ctrl_inac = (1 << GAIN) | (1 << EXPOSURE);
- else
- gspca_dev->ctrl_inac = 0;
- if (gspca_dev->streaming)
- setautogain(gspca_dev);
- return gspca_dev->usb_err;
-}
-
-#define WANT_REGULAR_AUTOGAIN
-#define WANT_COARSE_EXPO_AUTOGAIN
-#include "autogain_functions.h"
-
static void do_autogain(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
@@ -2024,62 +1956,100 @@ static void do_autogain(struct gspca_dev *gspca_dev)
switch (sd->webcam) {
case P35u:
- coarse_grained_expo_autogain(gspca_dev, luma, 100, 5);
+ gspca_coarse_grained_expo_autogain(gspca_dev, luma, 100, 5);
break;
default:
- auto_gain_n_exposure(gspca_dev, luma, 100, 5, 230, 0);
+ gspca_expo_autogain(gspca_dev, luma, 100, 5, 230, 0);
break;
}
}
-/* V4L2 controls supported by the driver */
-static const struct ctrl sd_ctrls[NCTRLS] = {
-[GAIN] = {
- {
- .id = V4L2_CID_GAIN,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Gain",
- .minimum = 0,
- .maximum = 253,
- .step = 1,
- .default_value = 128
- },
- .set_control = setgain
- },
-[EXPOSURE] = {
- {
- .id = V4L2_CID_EXPOSURE,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Exposure",
- .minimum = 0,
- .maximum = 9,
- .step = 1,
- .default_value = 9
- },
- .set_control = setexposure
- },
-[AUTOGAIN] = {
- {
- .id = V4L2_CID_AUTOGAIN,
- .type = V4L2_CTRL_TYPE_BOOLEAN,
- .name = "Auto Gain",
- .minimum = 0,
- .maximum = 1,
- .step = 1,
- .default_value = AUTOGAIN_DEF,
- .flags = V4L2_CTRL_FLAG_UPDATE
- },
- .set = sd_setautogain
- },
+
+static int sd_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+ struct gspca_dev *gspca_dev =
+ container_of(ctrl->handler, struct gspca_dev, ctrl_handler);
+
+ gspca_dev->usb_err = 0;
+
+ if (!gspca_dev->streaming)
+ return 0;
+
+ switch (ctrl->id) {
+ /* autogain/gain/exposure control cluster */
+ case V4L2_CID_AUTOGAIN:
+ if (ctrl->is_new)
+ setautogain(gspca_dev, ctrl->val);
+ if (!ctrl->val) {
+ if (gspca_dev->gain->is_new)
+ setgain(gspca_dev, gspca_dev->gain->val);
+ if (gspca_dev->exposure->is_new)
+ setexposure(gspca_dev,
+ gspca_dev->exposure->val);
+ }
+ break;
+ /* Some webcams only have exposure, so handle that separately from the
+ autogain/gain/exposure cluster in the previous case. */
+ case V4L2_CID_EXPOSURE:
+ setexposure(gspca_dev, gspca_dev->exposure->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, 3);
+ switch (sd->webcam) {
+ case P35u:
+ gspca_dev->autogain = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
+ V4L2_CID_AUTOGAIN, 0, 1, 1, 1);
+ /* For P35u choose coarse expo auto gain function gain minimum,
+ * to avoid a large settings jump the first auto adjustment */
+ gspca_dev->gain = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
+ V4L2_CID_GAIN, 0, 127, 1, 127 / 5 * 2);
+ gspca_dev->exposure = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
+ V4L2_CID_EXPOSURE, 0, 9, 1, 9);
+ break;
+ case Kr651us:
+ gspca_dev->autogain = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
+ V4L2_CID_AUTOGAIN, 0, 1, 1, 1);
+ gspca_dev->gain = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
+ V4L2_CID_GAIN, 0, 253, 1, 128);
+ /* fall through */
+ case Cvideopro:
+ case DvcV6:
+ case Kritter:
+ gspca_dev->exposure = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
+ V4L2_CID_EXPOSURE, 0, 315, 1, 150);
+ break;
+ default:
+ break;
+ }
+
+ if (hdl->error) {
+ pr_err("Could not initialize controls\n");
+ return hdl->error;
+ }
+ if (gspca_dev->autogain)
+ v4l2_ctrl_auto_cluster(3, &gspca_dev->autogain, 0, false);
+ 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,
@@ -2117,6 +2087,7 @@ static struct usb_driver sd_driver = {
#ifdef CONFIG_PM
.suspend = gspca_suspend,
.resume = gspca_resume,
+ .reset_resume = gspca_resume,
#endif
};
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.