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path: root/drivers/media/usb/gspca/m5602/m5602_ov7660.c
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Diffstat (limited to 'drivers/media/usb/gspca/m5602/m5602_ov7660.c')
-rw-r--r--drivers/media/usb/gspca/m5602/m5602_ov7660.c312
1 files changed, 71 insertions, 241 deletions
diff --git a/drivers/media/usb/gspca/m5602/m5602_ov7660.c b/drivers/media/usb/gspca/m5602/m5602_ov7660.c
index 9a14835c128..64b3b03a914 100644
--- a/drivers/media/usb/gspca/m5602/m5602_ov7660.c
+++ b/drivers/media/usb/gspca/m5602/m5602_ov7660.c
@@ -20,111 +20,8 @@
#include "m5602_ov7660.h"
-static int ov7660_get_gain(struct gspca_dev *gspca_dev, __s32 *val);
-static int ov7660_set_gain(struct gspca_dev *gspca_dev, __s32 val);
-static int ov7660_get_auto_white_balance(struct gspca_dev *gspca_dev,
- __s32 *val);
-static int ov7660_set_auto_white_balance(struct gspca_dev *gspca_dev,
- __s32 val);
-static int ov7660_get_auto_gain(struct gspca_dev *gspca_dev, __s32 *val);
-static int ov7660_set_auto_gain(struct gspca_dev *gspca_dev, __s32 val);
-static int ov7660_get_auto_exposure(struct gspca_dev *gspca_dev, __s32 *val);
-static int ov7660_set_auto_exposure(struct gspca_dev *gspca_dev, __s32 val);
-static int ov7660_get_hflip(struct gspca_dev *gspca_dev, __s32 *val);
-static int ov7660_set_hflip(struct gspca_dev *gspca_dev, __s32 val);
-static int ov7660_get_vflip(struct gspca_dev *gspca_dev, __s32 *val);
-static int ov7660_set_vflip(struct gspca_dev *gspca_dev, __s32 val);
-
-static const struct ctrl ov7660_ctrls[] = {
-#define GAIN_IDX 1
- {
- {
- .id = V4L2_CID_GAIN,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "gain",
- .minimum = 0x00,
- .maximum = 0xff,
- .step = 0x1,
- .default_value = OV7660_DEFAULT_GAIN,
- .flags = V4L2_CTRL_FLAG_SLIDER
- },
- .set = ov7660_set_gain,
- .get = ov7660_get_gain
- },
-#define BLUE_BALANCE_IDX 2
-#define RED_BALANCE_IDX 3
-#define AUTO_WHITE_BALANCE_IDX 4
- {
- {
- .id = V4L2_CID_AUTO_WHITE_BALANCE,
- .type = V4L2_CTRL_TYPE_BOOLEAN,
- .name = "auto white balance",
- .minimum = 0,
- .maximum = 1,
- .step = 1,
- .default_value = 1
- },
- .set = ov7660_set_auto_white_balance,
- .get = ov7660_get_auto_white_balance
- },
-#define AUTO_GAIN_CTRL_IDX 5
- {
- {
- .id = V4L2_CID_AUTOGAIN,
- .type = V4L2_CTRL_TYPE_BOOLEAN,
- .name = "auto gain control",
- .minimum = 0,
- .maximum = 1,
- .step = 1,
- .default_value = 1
- },
- .set = ov7660_set_auto_gain,
- .get = ov7660_get_auto_gain
- },
-#define AUTO_EXPOSURE_IDX 6
- {
- {
- .id = V4L2_CID_EXPOSURE_AUTO,
- .type = V4L2_CTRL_TYPE_BOOLEAN,
- .name = "auto exposure",
- .minimum = 0,
- .maximum = 1,
- .step = 1,
- .default_value = 1
- },
- .set = ov7660_set_auto_exposure,
- .get = ov7660_get_auto_exposure
- },
-#define HFLIP_IDX 7
- {
- {
- .id = V4L2_CID_HFLIP,
- .type = V4L2_CTRL_TYPE_BOOLEAN,
- .name = "horizontal flip",
- .minimum = 0,
- .maximum = 1,
- .step = 1,
- .default_value = 0
- },
- .set = ov7660_set_hflip,
- .get = ov7660_get_hflip
- },
-#define VFLIP_IDX 8
- {
- {
- .id = V4L2_CID_VFLIP,
- .type = V4L2_CTRL_TYPE_BOOLEAN,
- .name = "vertical flip",
- .minimum = 0,
- .maximum = 1,
- .step = 1,
- .default_value = 0
- },
- .set = ov7660_set_vflip,
- .get = ov7660_get_vflip
- },
-
-};
+static int ov7660_s_ctrl(struct v4l2_ctrl *ctrl);
+static void ov7660_dump_registers(struct sd *sd);
static struct v4l2_pix_format ov7660_modes[] = {
{
@@ -140,15 +37,15 @@ static struct v4l2_pix_format ov7660_modes[] = {
}
};
-static void ov7660_dump_registers(struct sd *sd);
+static const struct v4l2_ctrl_ops ov7660_ctrl_ops = {
+ .s_ctrl = ov7660_s_ctrl,
+};
int ov7660_probe(struct sd *sd)
{
int err = 0, i;
u8 prod_id = 0, ver_id = 0;
- s32 *sensor_settings;
-
if (force_sensor) {
if (force_sensor == OV7660_SENSOR) {
pr_info("Forcing an %s sensor\n", ov7660.name);
@@ -191,27 +88,15 @@ int ov7660_probe(struct sd *sd)
return -ENODEV;
sensor_found:
- sensor_settings = kmalloc(
- ARRAY_SIZE(ov7660_ctrls) * sizeof(s32), GFP_KERNEL);
- if (!sensor_settings)
- return -ENOMEM;
-
sd->gspca_dev.cam.cam_mode = ov7660_modes;
sd->gspca_dev.cam.nmodes = ARRAY_SIZE(ov7660_modes);
- sd->desc->ctrls = ov7660_ctrls;
- sd->desc->nctrls = ARRAY_SIZE(ov7660_ctrls);
-
- for (i = 0; i < ARRAY_SIZE(ov7660_ctrls); i++)
- sensor_settings[i] = ov7660_ctrls[i].qctrl.default_value;
- sd->sensor_priv = sensor_settings;
return 0;
}
int ov7660_init(struct sd *sd)
{
- int i, err = 0;
- s32 *sensor_settings = sd->sensor_priv;
+ int i, err;
/* Init the sensor */
for (i = 0; i < ARRAY_SIZE(init_ov7660); i++) {
@@ -226,38 +111,47 @@ int ov7660_init(struct sd *sd)
err = m5602_write_sensor(sd,
init_ov7660[i][1], data, 1);
}
+ if (err < 0)
+ return err;
}
if (dump_sensor)
ov7660_dump_registers(sd);
- err = ov7660_set_gain(&sd->gspca_dev, sensor_settings[GAIN_IDX]);
- if (err < 0)
- return err;
+ return 0;
+}
- err = ov7660_set_auto_white_balance(&sd->gspca_dev,
- sensor_settings[AUTO_WHITE_BALANCE_IDX]);
- if (err < 0)
- return err;
+int ov7660_init_controls(struct sd *sd)
+{
+ struct v4l2_ctrl_handler *hdl = &sd->gspca_dev.ctrl_handler;
- err = ov7660_set_auto_gain(&sd->gspca_dev,
- sensor_settings[AUTO_GAIN_CTRL_IDX]);
- if (err < 0)
- return err;
+ sd->gspca_dev.vdev.ctrl_handler = hdl;
+ v4l2_ctrl_handler_init(hdl, 6);
- err = ov7660_set_auto_exposure(&sd->gspca_dev,
- sensor_settings[AUTO_EXPOSURE_IDX]);
- if (err < 0)
- return err;
- err = ov7660_set_hflip(&sd->gspca_dev,
- sensor_settings[HFLIP_IDX]);
- if (err < 0)
- return err;
+ v4l2_ctrl_new_std(hdl, &ov7660_ctrl_ops, V4L2_CID_AUTO_WHITE_BALANCE,
+ 0, 1, 1, 1);
+ v4l2_ctrl_new_std_menu(hdl, &ov7660_ctrl_ops,
+ V4L2_CID_EXPOSURE_AUTO, 1, 0, V4L2_EXPOSURE_AUTO);
- err = ov7660_set_vflip(&sd->gspca_dev,
- sensor_settings[VFLIP_IDX]);
+ sd->autogain = v4l2_ctrl_new_std(hdl, &ov7660_ctrl_ops,
+ V4L2_CID_AUTOGAIN, 0, 1, 1, 1);
+ sd->gain = v4l2_ctrl_new_std(hdl, &ov7660_ctrl_ops, V4L2_CID_GAIN, 0,
+ 255, 1, OV7660_DEFAULT_GAIN);
- return err;
+ sd->hflip = v4l2_ctrl_new_std(hdl, &ov7660_ctrl_ops, V4L2_CID_HFLIP,
+ 0, 1, 1, 0);
+ sd->vflip = v4l2_ctrl_new_std(hdl, &ov7660_ctrl_ops, V4L2_CID_VFLIP,
+ 0, 1, 1, 0);
+
+ if (hdl->error) {
+ pr_err("Could not initialize controls\n");
+ return hdl->error;
+ }
+
+ v4l2_ctrl_auto_cluster(2, &sd->autogain, 0, false);
+ v4l2_ctrl_cluster(2, &sd->hflip);
+
+ return 0;
}
int ov7660_start(struct sd *sd)
@@ -275,56 +169,29 @@ void ov7660_disconnect(struct sd *sd)
ov7660_stop(sd);
sd->sensor = NULL;
- kfree(sd->sensor_priv);
-}
-
-static int ov7660_get_gain(struct gspca_dev *gspca_dev, __s32 *val)
-{
- struct sd *sd = (struct sd *) gspca_dev;
- s32 *sensor_settings = sd->sensor_priv;
-
- *val = sensor_settings[GAIN_IDX];
- PDEBUG(D_V4L2, "Read gain %d", *val);
- return 0;
}
static int ov7660_set_gain(struct gspca_dev *gspca_dev, __s32 val)
{
int err;
- u8 i2c_data;
+ u8 i2c_data = val;
struct sd *sd = (struct sd *) gspca_dev;
- s32 *sensor_settings = sd->sensor_priv;
- PDEBUG(D_V4L2, "Setting gain to %d", val);
-
- sensor_settings[GAIN_IDX] = val;
+ PDEBUG(D_CONF, "Setting gain to %d", val);
err = m5602_write_sensor(sd, OV7660_GAIN, &i2c_data, 1);
return err;
}
-
-static int ov7660_get_auto_white_balance(struct gspca_dev *gspca_dev,
- __s32 *val)
-{
- struct sd *sd = (struct sd *) gspca_dev;
- s32 *sensor_settings = sd->sensor_priv;
-
- *val = sensor_settings[AUTO_WHITE_BALANCE_IDX];
- return 0;
-}
-
static int ov7660_set_auto_white_balance(struct gspca_dev *gspca_dev,
__s32 val)
{
int err;
u8 i2c_data;
struct sd *sd = (struct sd *) gspca_dev;
- s32 *sensor_settings = sd->sensor_priv;
- PDEBUG(D_V4L2, "Set auto white balance to %d", val);
+ PDEBUG(D_CONF, "Set auto white balance to %d", val);
- sensor_settings[AUTO_WHITE_BALANCE_IDX] = val;
err = m5602_read_sensor(sd, OV7660_COM8, &i2c_data, 1);
if (err < 0)
return err;
@@ -335,26 +202,14 @@ static int ov7660_set_auto_white_balance(struct gspca_dev *gspca_dev,
return err;
}
-static int ov7660_get_auto_gain(struct gspca_dev *gspca_dev, __s32 *val)
-{
- struct sd *sd = (struct sd *) gspca_dev;
- s32 *sensor_settings = sd->sensor_priv;
-
- *val = sensor_settings[AUTO_GAIN_CTRL_IDX];
- PDEBUG(D_V4L2, "Read auto gain control %d", *val);
- return 0;
-}
-
static int ov7660_set_auto_gain(struct gspca_dev *gspca_dev, __s32 val)
{
int err;
u8 i2c_data;
struct sd *sd = (struct sd *) gspca_dev;
- s32 *sensor_settings = sd->sensor_priv;
- PDEBUG(D_V4L2, "Set auto gain control to %d", val);
+ PDEBUG(D_CONF, "Set auto gain control to %d", val);
- sensor_settings[AUTO_GAIN_CTRL_IDX] = val;
err = m5602_read_sensor(sd, OV7660_COM8, &i2c_data, 1);
if (err < 0)
return err;
@@ -364,94 +219,69 @@ static int ov7660_set_auto_gain(struct gspca_dev *gspca_dev, __s32 val)
return m5602_write_sensor(sd, OV7660_COM8, &i2c_data, 1);
}
-static int ov7660_get_auto_exposure(struct gspca_dev *gspca_dev, __s32 *val)
-{
- struct sd *sd = (struct sd *) gspca_dev;
- s32 *sensor_settings = sd->sensor_priv;
-
- *val = sensor_settings[AUTO_EXPOSURE_IDX];
- PDEBUG(D_V4L2, "Read auto exposure control %d", *val);
- return 0;
-}
-
static int ov7660_set_auto_exposure(struct gspca_dev *gspca_dev,
__s32 val)
{
int err;
u8 i2c_data;
struct sd *sd = (struct sd *) gspca_dev;
- s32 *sensor_settings = sd->sensor_priv;
- PDEBUG(D_V4L2, "Set auto exposure control to %d", val);
+ PDEBUG(D_CONF, "Set auto exposure control to %d", val);
- sensor_settings[AUTO_EXPOSURE_IDX] = val;
err = m5602_read_sensor(sd, OV7660_COM8, &i2c_data, 1);
if (err < 0)
return err;
+ val = (val == V4L2_EXPOSURE_AUTO);
i2c_data = ((i2c_data & 0xfe) | ((val & 0x01) << 0));
return m5602_write_sensor(sd, OV7660_COM8, &i2c_data, 1);
}
-static int ov7660_get_hflip(struct gspca_dev *gspca_dev, __s32 *val)
-{
- struct sd *sd = (struct sd *) gspca_dev;
- s32 *sensor_settings = sd->sensor_priv;
-
- *val = sensor_settings[HFLIP_IDX];
- PDEBUG(D_V4L2, "Read horizontal flip %d", *val);
- return 0;
-}
-
-static int ov7660_set_hflip(struct gspca_dev *gspca_dev, __s32 val)
+static int ov7660_set_hvflip(struct gspca_dev *gspca_dev)
{
int err;
u8 i2c_data;
struct sd *sd = (struct sd *) gspca_dev;
- s32 *sensor_settings = sd->sensor_priv;
- PDEBUG(D_V4L2, "Set horizontal flip to %d", val);
+ PDEBUG(D_CONF, "Set hvflip to %d, %d", sd->hflip->val, sd->vflip->val);
- sensor_settings[HFLIP_IDX] = val;
-
- i2c_data = ((val & 0x01) << 5) |
- (sensor_settings[VFLIP_IDX] << 4);
+ i2c_data = (sd->hflip->val << 5) | (sd->vflip->val << 4);
err = m5602_write_sensor(sd, OV7660_MVFP, &i2c_data, 1);
return err;
}
-static int ov7660_get_vflip(struct gspca_dev *gspca_dev, __s32 *val)
+static int ov7660_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;
- s32 *sensor_settings = sd->sensor_priv;
-
- *val = sensor_settings[VFLIP_IDX];
- PDEBUG(D_V4L2, "Read vertical flip %d", *val);
-
- return 0;
-}
-
-static int ov7660_set_vflip(struct gspca_dev *gspca_dev, __s32 val)
-{
int err;
- u8 i2c_data;
- struct sd *sd = (struct sd *) gspca_dev;
- s32 *sensor_settings = sd->sensor_priv;
-
- PDEBUG(D_V4L2, "Set vertical flip to %d", val);
- sensor_settings[VFLIP_IDX] = val;
- i2c_data = ((val & 0x01) << 4) | (sensor_settings[VFLIP_IDX] << 5);
- err = m5602_write_sensor(sd, OV7660_MVFP, &i2c_data, 1);
- if (err < 0)
- return err;
-
- /* When vflip is toggled we need to readjust the bridge hsync/vsync */
- if (gspca_dev->streaming)
- err = ov7660_start(sd);
+ if (!gspca_dev->streaming)
+ return 0;
+
+ switch (ctrl->id) {
+ case V4L2_CID_AUTO_WHITE_BALANCE:
+ err = ov7660_set_auto_white_balance(gspca_dev, ctrl->val);
+ break;
+ case V4L2_CID_EXPOSURE_AUTO:
+ err = ov7660_set_auto_exposure(gspca_dev, ctrl->val);
+ break;
+ case V4L2_CID_AUTOGAIN:
+ err = ov7660_set_auto_gain(gspca_dev, ctrl->val);
+ if (err || ctrl->val)
+ return err;
+ err = ov7660_set_gain(gspca_dev, sd->gain->val);
+ break;
+ case V4L2_CID_HFLIP:
+ err = ov7660_set_hvflip(gspca_dev);
+ break;
+ default:
+ return -EINVAL;
+ }
return err;
}