#include <linux/i2c.h>
#include <linux/delay.h>
#include <linux/log2.h>
+#include <linux/module.h>
+#include <media/soc_camera.h>
+#include <media/soc_mediabus.h>
#include <media/v4l2-subdev.h>
#include <media/v4l2-chip-ident.h>
-#include <media/soc_camera.h>
+#include <media/v4l2-ctrls.h>
/*
* mt9v022 i2c address 0x48, 0x4c, 0x58, 0x5c
struct mt9v022 {
struct v4l2_subdev subdev;
+ struct v4l2_ctrl_handler hdl;
+ struct {
+ /* exposure/auto-exposure cluster */
+ struct v4l2_ctrl *autoexposure;
+ struct v4l2_ctrl *exposure;
+ };
+ struct {
+ /* gain/auto-gain cluster */
+ struct v4l2_ctrl *autogain;
+ struct v4l2_ctrl *gain;
+ };
struct v4l2_rect rect; /* Sensor window */
const struct mt9v022_datafmt *fmt;
const struct mt9v022_datafmt *fmts;
ret = reg_clear(client, MT9V022_BLACK_LEVEL_CALIB_CTRL, 1);
if (!ret)
ret = reg_write(client, MT9V022_DIGITAL_TEST_PATTERN, 0);
+ if (!ret)
+ return v4l2_ctrl_handler_setup(&mt9v022->hdl);
return ret;
}
return 0;
}
-static int mt9v022_set_bus_param(struct soc_camera_device *icd,
- unsigned long flags)
-{
- struct i2c_client *client = to_i2c_client(to_soc_camera_control(icd));
- struct mt9v022 *mt9v022 = to_mt9v022(client);
- struct soc_camera_link *icl = to_soc_camera_link(icd);
- unsigned int width_flag = flags & SOCAM_DATAWIDTH_MASK;
- int ret;
- u16 pixclk = 0;
-
- /* Only one width bit may be set */
- if (!is_power_of_2(width_flag))
- return -EINVAL;
-
- if (icl->set_bus_param) {
- ret = icl->set_bus_param(icl, width_flag);
- if (ret)
- return ret;
- } else {
- /*
- * Without board specific bus width settings we only support the
- * sensors native bus width
- */
- if (width_flag != SOCAM_DATAWIDTH_10)
- return -EINVAL;
- }
-
- flags = soc_camera_apply_sensor_flags(icl, flags);
-
- if (flags & SOCAM_PCLK_SAMPLE_FALLING)
- pixclk |= 0x10;
-
- if (!(flags & SOCAM_HSYNC_ACTIVE_HIGH))
- pixclk |= 0x1;
-
- if (!(flags & SOCAM_VSYNC_ACTIVE_HIGH))
- pixclk |= 0x2;
-
- ret = reg_write(client, MT9V022_PIXCLK_FV_LV, pixclk);
- if (ret < 0)
- return ret;
-
- if (!(flags & SOCAM_MASTER))
- mt9v022->chip_control &= ~0x8;
-
- ret = reg_write(client, MT9V022_CHIP_CONTROL, mt9v022->chip_control);
- if (ret < 0)
- return ret;
-
- dev_dbg(&client->dev, "Calculated pixclk 0x%x, chip control 0x%x\n",
- pixclk, mt9v022->chip_control);
-
- return 0;
-}
-
-static unsigned long mt9v022_query_bus_param(struct soc_camera_device *icd)
-{
- struct soc_camera_link *icl = to_soc_camera_link(icd);
- unsigned int flags = SOCAM_MASTER | SOCAM_SLAVE |
- SOCAM_PCLK_SAMPLE_RISING | SOCAM_PCLK_SAMPLE_FALLING |
- SOCAM_HSYNC_ACTIVE_HIGH | SOCAM_HSYNC_ACTIVE_LOW |
- SOCAM_VSYNC_ACTIVE_HIGH | SOCAM_VSYNC_ACTIVE_LOW |
- SOCAM_DATA_ACTIVE_HIGH;
-
- if (icl->query_bus_param)
- flags |= icl->query_bus_param(icl) & SOCAM_DATAWIDTH_MASK;
- else
- flags |= SOCAM_DATAWIDTH_10;
-
- return soc_camera_apply_sensor_flags(icl, flags);
-}
-
static int mt9v022_s_crop(struct v4l2_subdev *sd, struct v4l2_crop *a)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
/*
* The caller provides a supported format, as verified per call to
- * icd->try_fmt(), datawidth is from our supported format list
+ * .try_mbus_fmt(), datawidth is from our supported format list
*/
switch (mf->code) {
case V4L2_MBUS_FMT_Y8_1X8:
}
#endif
-static const struct v4l2_queryctrl mt9v022_controls[] = {
- {
- .id = V4L2_CID_VFLIP,
- .type = V4L2_CTRL_TYPE_BOOLEAN,
- .name = "Flip Vertically",
- .minimum = 0,
- .maximum = 1,
- .step = 1,
- .default_value = 0,
- }, {
- .id = V4L2_CID_HFLIP,
- .type = V4L2_CTRL_TYPE_BOOLEAN,
- .name = "Flip Horizontally",
- .minimum = 0,
- .maximum = 1,
- .step = 1,
- .default_value = 0,
- }, {
- .id = V4L2_CID_GAIN,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Analog Gain",
- .minimum = 64,
- .maximum = 127,
- .step = 1,
- .default_value = 64,
- .flags = V4L2_CTRL_FLAG_SLIDER,
- }, {
- .id = V4L2_CID_EXPOSURE,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Exposure",
- .minimum = 1,
- .maximum = 255,
- .step = 1,
- .default_value = 255,
- .flags = V4L2_CTRL_FLAG_SLIDER,
- }, {
- .id = V4L2_CID_AUTOGAIN,
- .type = V4L2_CTRL_TYPE_BOOLEAN,
- .name = "Automatic Gain",
- .minimum = 0,
- .maximum = 1,
- .step = 1,
- .default_value = 1,
- }, {
- .id = V4L2_CID_EXPOSURE_AUTO,
- .type = V4L2_CTRL_TYPE_BOOLEAN,
- .name = "Automatic Exposure",
- .minimum = 0,
- .maximum = 1,
- .step = 1,
- .default_value = 1,
- }
-};
-
-static struct soc_camera_ops mt9v022_ops = {
- .set_bus_param = mt9v022_set_bus_param,
- .query_bus_param = mt9v022_query_bus_param,
- .controls = mt9v022_controls,
- .num_controls = ARRAY_SIZE(mt9v022_controls),
-};
-
-static int mt9v022_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+static int mt9v022_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
{
+ struct mt9v022 *mt9v022 = container_of(ctrl->handler,
+ struct mt9v022, hdl);
+ struct v4l2_subdev *sd = &mt9v022->subdev;
struct i2c_client *client = v4l2_get_subdevdata(sd);
- const struct v4l2_queryctrl *qctrl;
+ struct v4l2_ctrl *gain = mt9v022->gain;
+ struct v4l2_ctrl *exp = mt9v022->exposure;
unsigned long range;
int data;
- qctrl = soc_camera_find_qctrl(&mt9v022_ops, ctrl->id);
-
switch (ctrl->id) {
- case V4L2_CID_VFLIP:
- data = reg_read(client, MT9V022_READ_MODE);
- if (data < 0)
- return -EIO;
- ctrl->value = !!(data & 0x10);
- break;
- case V4L2_CID_HFLIP:
- data = reg_read(client, MT9V022_READ_MODE);
- if (data < 0)
- return -EIO;
- ctrl->value = !!(data & 0x20);
- break;
- case V4L2_CID_EXPOSURE_AUTO:
- data = reg_read(client, MT9V022_AEC_AGC_ENABLE);
- if (data < 0)
- return -EIO;
- ctrl->value = !!(data & 0x1);
- break;
case V4L2_CID_AUTOGAIN:
- data = reg_read(client, MT9V022_AEC_AGC_ENABLE);
- if (data < 0)
- return -EIO;
- ctrl->value = !!(data & 0x2);
- break;
- case V4L2_CID_GAIN:
data = reg_read(client, MT9V022_ANALOG_GAIN);
if (data < 0)
return -EIO;
- range = qctrl->maximum - qctrl->minimum;
- ctrl->value = ((data - 16) * range + 24) / 48 + qctrl->minimum;
-
- break;
- case V4L2_CID_EXPOSURE:
+ range = gain->maximum - gain->minimum;
+ gain->val = ((data - 16) * range + 24) / 48 + gain->minimum;
+ return 0;
+ case V4L2_CID_EXPOSURE_AUTO:
data = reg_read(client, MT9V022_TOTAL_SHUTTER_WIDTH);
if (data < 0)
return -EIO;
- range = qctrl->maximum - qctrl->minimum;
- ctrl->value = ((data - 1) * range + 239) / 479 + qctrl->minimum;
-
- break;
+ range = exp->maximum - exp->minimum;
+ exp->val = ((data - 1) * range + 239) / 479 + exp->minimum;
+ return 0;
}
- return 0;
+ return -EINVAL;
}
-static int mt9v022_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+static int mt9v022_s_ctrl(struct v4l2_ctrl *ctrl)
{
- int data;
+ struct mt9v022 *mt9v022 = container_of(ctrl->handler,
+ struct mt9v022, hdl);
+ struct v4l2_subdev *sd = &mt9v022->subdev;
struct i2c_client *client = v4l2_get_subdevdata(sd);
- const struct v4l2_queryctrl *qctrl;
-
- qctrl = soc_camera_find_qctrl(&mt9v022_ops, ctrl->id);
- if (!qctrl)
- return -EINVAL;
+ int data;
switch (ctrl->id) {
case V4L2_CID_VFLIP:
- if (ctrl->value)
+ if (ctrl->val)
data = reg_set(client, MT9V022_READ_MODE, 0x10);
else
data = reg_clear(client, MT9V022_READ_MODE, 0x10);
if (data < 0)
return -EIO;
- break;
+ return 0;
case V4L2_CID_HFLIP:
- if (ctrl->value)
+ if (ctrl->val)
data = reg_set(client, MT9V022_READ_MODE, 0x20);
else
data = reg_clear(client, MT9V022_READ_MODE, 0x20);
if (data < 0)
return -EIO;
- break;
- case V4L2_CID_GAIN:
- /* mt9v022 has minimum == default */
- if (ctrl->value > qctrl->maximum || ctrl->value < qctrl->minimum)
- return -EINVAL;
- else {
- unsigned long range = qctrl->maximum - qctrl->minimum;
+ return 0;
+ case V4L2_CID_AUTOGAIN:
+ if (ctrl->val) {
+ if (reg_set(client, MT9V022_AEC_AGC_ENABLE, 0x2) < 0)
+ return -EIO;
+ } else {
+ struct v4l2_ctrl *gain = mt9v022->gain;
+ /* mt9v022 has minimum == default */
+ unsigned long range = gain->maximum - gain->minimum;
/* Valid values 16 to 64, 32 to 64 must be even. */
- unsigned long gain = ((ctrl->value - qctrl->minimum) *
+ unsigned long gain_val = ((gain->val - gain->minimum) *
48 + range / 2) / range + 16;
- if (gain >= 32)
- gain &= ~1;
+
+ if (gain_val >= 32)
+ gain_val &= ~1;
+
/*
* The user wants to set gain manually, hope, she
* knows, what she's doing... Switch AGC off.
*/
-
if (reg_clear(client, MT9V022_AEC_AGC_ENABLE, 0x2) < 0)
return -EIO;
dev_dbg(&client->dev, "Setting gain from %d to %lu\n",
- reg_read(client, MT9V022_ANALOG_GAIN), gain);
- if (reg_write(client, MT9V022_ANALOG_GAIN, gain) < 0)
+ reg_read(client, MT9V022_ANALOG_GAIN), gain_val);
+ if (reg_write(client, MT9V022_ANALOG_GAIN, gain_val) < 0)
return -EIO;
}
- break;
- case V4L2_CID_EXPOSURE:
- /* mt9v022 has maximum == default */
- if (ctrl->value > qctrl->maximum || ctrl->value < qctrl->minimum)
- return -EINVAL;
- else {
- unsigned long range = qctrl->maximum - qctrl->minimum;
- unsigned long shutter = ((ctrl->value - qctrl->minimum) *
- 479 + range / 2) / range + 1;
+ return 0;
+ case V4L2_CID_EXPOSURE_AUTO:
+ if (ctrl->val == V4L2_EXPOSURE_AUTO) {
+ data = reg_set(client, MT9V022_AEC_AGC_ENABLE, 0x1);
+ } else {
+ struct v4l2_ctrl *exp = mt9v022->exposure;
+ unsigned long range = exp->maximum - exp->minimum;
+ unsigned long shutter = ((exp->val - exp->minimum) *
+ 479 + range / 2) / range + 1;
+
/*
* The user wants to set shutter width manually, hope,
* she knows, what she's doing... Switch AEC off.
*/
-
- if (reg_clear(client, MT9V022_AEC_AGC_ENABLE, 0x1) < 0)
+ data = reg_clear(client, MT9V022_AEC_AGC_ENABLE, 0x1);
+ if (data < 0)
return -EIO;
-
dev_dbg(&client->dev, "Shutter width from %d to %lu\n",
- reg_read(client, MT9V022_TOTAL_SHUTTER_WIDTH),
- shutter);
+ reg_read(client, MT9V022_TOTAL_SHUTTER_WIDTH),
+ shutter);
if (reg_write(client, MT9V022_TOTAL_SHUTTER_WIDTH,
- shutter) < 0)
+ shutter) < 0)
return -EIO;
}
- break;
- case V4L2_CID_AUTOGAIN:
- if (ctrl->value)
- data = reg_set(client, MT9V022_AEC_AGC_ENABLE, 0x2);
- else
- data = reg_clear(client, MT9V022_AEC_AGC_ENABLE, 0x2);
- if (data < 0)
- return -EIO;
- break;
- case V4L2_CID_EXPOSURE_AUTO:
- if (ctrl->value)
- data = reg_set(client, MT9V022_AEC_AGC_ENABLE, 0x1);
- else
- data = reg_clear(client, MT9V022_AEC_AGC_ENABLE, 0x1);
- if (data < 0)
- return -EIO;
- break;
+ return 0;
}
- return 0;
+ return -EINVAL;
}
/*
* Interface active, can use i2c. If it fails, it can indeed mean, that
* this wasn't our capture interface, so, we wait for the right one
*/
-static int mt9v022_video_probe(struct soc_camera_device *icd,
- struct i2c_client *client)
+static int mt9v022_video_probe(struct i2c_client *client)
{
struct mt9v022 *mt9v022 = to_mt9v022(client);
- struct soc_camera_link *icl = to_soc_camera_link(icd);
+ struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
s32 data;
int ret;
unsigned long flags;
- /* We must have a parent by now. And it cannot be a wrong one. */
- BUG_ON(!icd->parent ||
- to_soc_camera_host(icd->parent)->nr != icd->iface);
-
/* Read out the chip version register */
data = reg_read(client, MT9V022_CHIP_VERSION);
return ret;
}
-static void mt9v022_video_remove(struct soc_camera_device *icd)
-{
- struct soc_camera_link *icl = to_soc_camera_link(icd);
-
- dev_dbg(icd->pdev, "Video removed: %p, %p\n",
- icd->parent, icd->vdev);
- if (icl->free_bus)
- icl->free_bus(icl);
-}
-
static int mt9v022_g_skip_top_lines(struct v4l2_subdev *sd, u32 *lines)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
return 0;
}
+static const struct v4l2_ctrl_ops mt9v022_ctrl_ops = {
+ .g_volatile_ctrl = mt9v022_g_volatile_ctrl,
+ .s_ctrl = mt9v022_s_ctrl,
+};
+
static struct v4l2_subdev_core_ops mt9v022_subdev_core_ops = {
- .g_ctrl = mt9v022_g_ctrl,
- .s_ctrl = mt9v022_s_ctrl,
.g_chip_ident = mt9v022_g_chip_ident,
#ifdef CONFIG_VIDEO_ADV_DEBUG
.g_register = mt9v022_g_register,
return 0;
}
+static int mt9v022_g_mbus_config(struct v4l2_subdev *sd,
+ struct v4l2_mbus_config *cfg)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
+
+ cfg->flags = V4L2_MBUS_MASTER | V4L2_MBUS_SLAVE |
+ V4L2_MBUS_PCLK_SAMPLE_RISING | V4L2_MBUS_PCLK_SAMPLE_FALLING |
+ V4L2_MBUS_HSYNC_ACTIVE_HIGH | V4L2_MBUS_HSYNC_ACTIVE_LOW |
+ V4L2_MBUS_VSYNC_ACTIVE_HIGH | V4L2_MBUS_VSYNC_ACTIVE_LOW |
+ V4L2_MBUS_DATA_ACTIVE_HIGH;
+ cfg->type = V4L2_MBUS_PARALLEL;
+ cfg->flags = soc_camera_apply_board_flags(icl, cfg);
+
+ return 0;
+}
+
+static int mt9v022_s_mbus_config(struct v4l2_subdev *sd,
+ const struct v4l2_mbus_config *cfg)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
+ struct mt9v022 *mt9v022 = to_mt9v022(client);
+ unsigned long flags = soc_camera_apply_board_flags(icl, cfg);
+ unsigned int bps = soc_mbus_get_fmtdesc(mt9v022->fmt->code)->bits_per_sample;
+ int ret;
+ u16 pixclk = 0;
+
+ if (icl->set_bus_param) {
+ ret = icl->set_bus_param(icl, 1 << (bps - 1));
+ if (ret)
+ return ret;
+ } else if (bps != 10) {
+ /*
+ * Without board specific bus width settings we only support the
+ * sensors native bus width
+ */
+ return -EINVAL;
+ }
+
+ if (flags & V4L2_MBUS_PCLK_SAMPLE_FALLING)
+ pixclk |= 0x10;
+
+ if (!(flags & V4L2_MBUS_HSYNC_ACTIVE_HIGH))
+ pixclk |= 0x1;
+
+ if (!(flags & V4L2_MBUS_VSYNC_ACTIVE_HIGH))
+ pixclk |= 0x2;
+
+ ret = reg_write(client, MT9V022_PIXCLK_FV_LV, pixclk);
+ if (ret < 0)
+ return ret;
+
+ if (!(flags & V4L2_MBUS_MASTER))
+ mt9v022->chip_control &= ~0x8;
+
+ ret = reg_write(client, MT9V022_CHIP_CONTROL, mt9v022->chip_control);
+ if (ret < 0)
+ return ret;
+
+ dev_dbg(&client->dev, "Calculated pixclk 0x%x, chip control 0x%x\n",
+ pixclk, mt9v022->chip_control);
+
+ return 0;
+}
+
static struct v4l2_subdev_video_ops mt9v022_subdev_video_ops = {
.s_stream = mt9v022_s_stream,
.s_mbus_fmt = mt9v022_s_fmt,
.g_crop = mt9v022_g_crop,
.cropcap = mt9v022_cropcap,
.enum_mbus_fmt = mt9v022_enum_fmt,
+ .g_mbus_config = mt9v022_g_mbus_config,
+ .s_mbus_config = mt9v022_s_mbus_config,
};
static struct v4l2_subdev_sensor_ops mt9v022_subdev_sensor_ops = {
const struct i2c_device_id *did)
{
struct mt9v022 *mt9v022;
- struct soc_camera_device *icd = client->dev.platform_data;
+ struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
- struct soc_camera_link *icl;
int ret;
- if (!icd) {
- dev_err(&client->dev, "MT9V022: missing soc-camera data!\n");
- return -EINVAL;
- }
-
- icl = to_soc_camera_link(icd);
if (!icl) {
dev_err(&client->dev, "MT9V022 driver needs platform data\n");
return -EINVAL;
return -ENOMEM;
v4l2_i2c_subdev_init(&mt9v022->subdev, client, &mt9v022_subdev_ops);
+ v4l2_ctrl_handler_init(&mt9v022->hdl, 6);
+ v4l2_ctrl_new_std(&mt9v022->hdl, &mt9v022_ctrl_ops,
+ V4L2_CID_VFLIP, 0, 1, 1, 0);
+ v4l2_ctrl_new_std(&mt9v022->hdl, &mt9v022_ctrl_ops,
+ V4L2_CID_HFLIP, 0, 1, 1, 0);
+ mt9v022->autogain = v4l2_ctrl_new_std(&mt9v022->hdl, &mt9v022_ctrl_ops,
+ V4L2_CID_AUTOGAIN, 0, 1, 1, 1);
+ mt9v022->gain = v4l2_ctrl_new_std(&mt9v022->hdl, &mt9v022_ctrl_ops,
+ V4L2_CID_GAIN, 0, 127, 1, 64);
+
+ /*
+ * Simulated autoexposure. If enabled, we calculate shutter width
+ * ourselves in the driver based on vertical blanking and frame width
+ */
+ mt9v022->autoexposure = v4l2_ctrl_new_std_menu(&mt9v022->hdl,
+ &mt9v022_ctrl_ops, V4L2_CID_EXPOSURE_AUTO, 1, 0,
+ V4L2_EXPOSURE_AUTO);
+ mt9v022->exposure = v4l2_ctrl_new_std(&mt9v022->hdl, &mt9v022_ctrl_ops,
+ V4L2_CID_EXPOSURE, 1, 255, 1, 255);
+
+ mt9v022->subdev.ctrl_handler = &mt9v022->hdl;
+ if (mt9v022->hdl.error) {
+ int err = mt9v022->hdl.error;
+
+ kfree(mt9v022);
+ return err;
+ }
+ v4l2_ctrl_auto_cluster(2, &mt9v022->autoexposure,
+ V4L2_EXPOSURE_MANUAL, true);
+ v4l2_ctrl_auto_cluster(2, &mt9v022->autogain, 0, true);
mt9v022->chip_control = MT9V022_CHIP_CONTROL_DEFAULT;
- icd->ops = &mt9v022_ops;
/*
* MT9V022 _really_ corrupts the first read out line.
* TODO: verify on i.MX31
mt9v022->rect.width = MT9V022_MAX_WIDTH;
mt9v022->rect.height = MT9V022_MAX_HEIGHT;
- ret = mt9v022_video_probe(icd, client);
+ ret = mt9v022_video_probe(client);
if (ret) {
- icd->ops = NULL;
+ v4l2_ctrl_handler_free(&mt9v022->hdl);
kfree(mt9v022);
}
static int mt9v022_remove(struct i2c_client *client)
{
struct mt9v022 *mt9v022 = to_mt9v022(client);
- struct soc_camera_device *icd = client->dev.platform_data;
+ struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
- icd->ops = NULL;
- mt9v022_video_remove(icd);
+ v4l2_device_unregister_subdev(&mt9v022->subdev);
+ if (icl->free_bus)
+ icl->free_bus(icl);
+ v4l2_ctrl_handler_free(&mt9v022->hdl);
kfree(mt9v022);
return 0;
git.openpandora.org / pandora-kernel.git / blobdiff