#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>
/*
* mt9m001 i2c address 0x5d
struct mt9m001 {
struct v4l2_subdev subdev;
+ struct v4l2_ctrl_handler hdl;
+ struct {
+ /* exposure/auto-exposure cluster */
+ struct v4l2_ctrl *autoexposure;
+ struct v4l2_ctrl *exposure;
+ };
struct v4l2_rect rect; /* Sensor window */
const struct mt9m001_datafmt *fmt;
const struct mt9m001_datafmt *fmts;
int num_fmts;
int model; /* V4L2_IDENT_MT9M001* codes from v4l2-chip-ident.h */
- unsigned int gain;
- unsigned int exposure;
+ unsigned int total_h;
unsigned short y_skip_top; /* Lines to skip at the top */
- unsigned char autoexposure;
};
static struct mt9m001 *to_mt9m001(const struct i2c_client *client)
return 0;
}
-static int mt9m001_set_bus_param(struct soc_camera_device *icd,
- unsigned long flags)
-{
- struct soc_camera_link *icl = to_soc_camera_link(icd);
- unsigned long width_flag = flags & SOCAM_DATAWIDTH_MASK;
-
- /* Only one width bit may be set */
- if (!is_power_of_2(width_flag))
- return -EINVAL;
-
- if (icl->set_bus_param)
- return icl->set_bus_param(icl, width_flag);
-
- /*
- * Without board specific bus width settings we only support the
- * sensors native bus width
- */
- if (width_flag == SOCAM_DATAWIDTH_10)
- return 0;
-
- return -EINVAL;
-}
-
-static unsigned long mt9m001_query_bus_param(struct soc_camera_device *icd)
-{
- struct soc_camera_link *icl = to_soc_camera_link(icd);
- /* MT9M001 has all capture_format parameters fixed */
- unsigned long flags = SOCAM_PCLK_SAMPLE_FALLING |
- SOCAM_HSYNC_ACTIVE_HIGH | SOCAM_VSYNC_ACTIVE_HIGH |
- SOCAM_DATA_ACTIVE_HIGH | SOCAM_MASTER;
-
- 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 mt9m001_s_crop(struct v4l2_subdev *sd, struct v4l2_crop *a)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
struct mt9m001 *mt9m001 = to_mt9m001(client);
struct v4l2_rect rect = a->c;
- struct soc_camera_device *icd = client->dev.platform_data;
int ret;
const u16 hblank = 9, vblank = 25;
- unsigned int total_h;
if (mt9m001->fmts == mt9m001_colour_fmts)
/*
soc_camera_limit_side(&rect.top, &rect.height,
MT9M001_ROW_SKIP, MT9M001_MIN_HEIGHT, MT9M001_MAX_HEIGHT);
- total_h = rect.height + mt9m001->y_skip_top + vblank;
+ mt9m001->total_h = rect.height + mt9m001->y_skip_top + vblank;
/* Blanking and start values - default... */
ret = reg_write(client, MT9M001_HORIZONTAL_BLANKING, hblank);
/*
* The caller provides a supported format, as verified per
- * call to icd->try_fmt()
+ * call to .try_mbus_fmt()
*/
if (!ret)
ret = reg_write(client, MT9M001_COLUMN_START, rect.left);
if (!ret)
ret = reg_write(client, MT9M001_WINDOW_HEIGHT,
rect.height + mt9m001->y_skip_top - 1);
- if (!ret && mt9m001->autoexposure) {
- ret = reg_write(client, MT9M001_SHUTTER_WIDTH, total_h);
- if (!ret) {
- const struct v4l2_queryctrl *qctrl =
- soc_camera_find_qctrl(icd->ops,
- V4L2_CID_EXPOSURE);
- mt9m001->exposure = (524 + (total_h - 1) *
- (qctrl->maximum - qctrl->minimum)) /
- 1048 + qctrl->minimum;
- }
- }
+ if (!ret && v4l2_ctrl_g_ctrl(mt9m001->autoexposure) == V4L2_EXPOSURE_AUTO)
+ ret = reg_write(client, MT9M001_SHUTTER_WIDTH, mt9m001->total_h);
if (!ret)
mt9m001->rect = rect;
}
#endif
-static const struct v4l2_queryctrl mt9m001_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_GAIN,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Gain",
- .minimum = 0,
- .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_EXPOSURE_AUTO,
- .type = V4L2_CTRL_TYPE_BOOLEAN,
- .name = "Automatic Exposure",
- .minimum = 0,
- .maximum = 1,
- .step = 1,
- .default_value = 1,
- }
-};
-
-static struct soc_camera_ops mt9m001_ops = {
- .set_bus_param = mt9m001_set_bus_param,
- .query_bus_param = mt9m001_query_bus_param,
- .controls = mt9m001_controls,
- .num_controls = ARRAY_SIZE(mt9m001_controls),
-};
-
-static int mt9m001_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+static int mt9m001_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
{
- struct i2c_client *client = v4l2_get_subdevdata(sd);
- struct mt9m001 *mt9m001 = to_mt9m001(client);
- int data;
+ struct mt9m001 *mt9m001 = container_of(ctrl->handler,
+ struct mt9m001, hdl);
+ s32 min, max;
switch (ctrl->id) {
- case V4L2_CID_VFLIP:
- data = reg_read(client, MT9M001_READ_OPTIONS2);
- if (data < 0)
- return -EIO;
- ctrl->value = !!(data & 0x8000);
- break;
case V4L2_CID_EXPOSURE_AUTO:
- ctrl->value = mt9m001->autoexposure;
- break;
- case V4L2_CID_GAIN:
- ctrl->value = mt9m001->gain;
- break;
- case V4L2_CID_EXPOSURE:
- ctrl->value = mt9m001->exposure;
+ min = mt9m001->exposure->minimum;
+ max = mt9m001->exposure->maximum;
+ mt9m001->exposure->val =
+ (524 + (mt9m001->total_h - 1) * (max - min)) / 1048 + min;
break;
}
return 0;
}
-static int mt9m001_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+static int mt9m001_s_ctrl(struct v4l2_ctrl *ctrl)
{
+ struct mt9m001 *mt9m001 = container_of(ctrl->handler,
+ struct mt9m001, hdl);
+ struct v4l2_subdev *sd = &mt9m001->subdev;
struct i2c_client *client = v4l2_get_subdevdata(sd);
- struct mt9m001 *mt9m001 = to_mt9m001(client);
- struct soc_camera_device *icd = client->dev.platform_data;
- const struct v4l2_queryctrl *qctrl;
+ struct v4l2_ctrl *exp = mt9m001->exposure;
int data;
- qctrl = soc_camera_find_qctrl(&mt9m001_ops, ctrl->id);
-
- if (!qctrl)
- return -EINVAL;
-
switch (ctrl->id) {
case V4L2_CID_VFLIP:
- if (ctrl->value)
+ if (ctrl->val)
data = reg_set(client, MT9M001_READ_OPTIONS2, 0x8000);
else
data = reg_clear(client, MT9M001_READ_OPTIONS2, 0x8000);
if (data < 0)
return -EIO;
- break;
+ return 0;
+
case V4L2_CID_GAIN:
- if (ctrl->value > qctrl->maximum || ctrl->value < qctrl->minimum)
- return -EINVAL;
/* See Datasheet Table 7, Gain settings. */
- if (ctrl->value <= qctrl->default_value) {
+ if (ctrl->val <= ctrl->default_value) {
/* Pack it into 0..1 step 0.125, register values 0..8 */
- unsigned long range = qctrl->default_value - qctrl->minimum;
- data = ((ctrl->value - qctrl->minimum) * 8 + range / 2) / range;
+ unsigned long range = ctrl->default_value - ctrl->minimum;
+ data = ((ctrl->val - ctrl->minimum) * 8 + range / 2) / range;
dev_dbg(&client->dev, "Setting gain %d\n", data);
data = reg_write(client, MT9M001_GLOBAL_GAIN, data);
} else {
/* Pack it into 1.125..15 variable step, register values 9..67 */
/* We assume qctrl->maximum - qctrl->default_value - 1 > 0 */
- unsigned long range = qctrl->maximum - qctrl->default_value - 1;
- unsigned long gain = ((ctrl->value - qctrl->default_value - 1) *
+ unsigned long range = ctrl->maximum - ctrl->default_value - 1;
+ unsigned long gain = ((ctrl->val - ctrl->default_value - 1) *
111 + range / 2) / range + 9;
if (gain <= 32)
if (data < 0)
return -EIO;
}
+ return 0;
- /* Success */
- mt9m001->gain = ctrl->value;
- break;
- case V4L2_CID_EXPOSURE:
- /* mt9m001 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) * 1048 +
+ case V4L2_CID_EXPOSURE_AUTO:
+ if (ctrl->val == V4L2_EXPOSURE_MANUAL) {
+ unsigned long range = exp->maximum - exp->minimum;
+ unsigned long shutter = ((exp->val - exp->minimum) * 1048 +
range / 2) / range + 1;
dev_dbg(&client->dev,
"Setting shutter width from %d to %lu\n",
- reg_read(client, MT9M001_SHUTTER_WIDTH),
- shutter);
+ reg_read(client, MT9M001_SHUTTER_WIDTH), shutter);
if (reg_write(client, MT9M001_SHUTTER_WIDTH, shutter) < 0)
return -EIO;
- mt9m001->exposure = ctrl->value;
- mt9m001->autoexposure = 0;
- }
- break;
- case V4L2_CID_EXPOSURE_AUTO:
- if (ctrl->value) {
+ } else {
const u16 vblank = 25;
- unsigned int total_h = mt9m001->rect.height +
+
+ mt9m001->total_h = mt9m001->rect.height +
mt9m001->y_skip_top + vblank;
- if (reg_write(client, MT9M001_SHUTTER_WIDTH,
- total_h) < 0)
+ if (reg_write(client, MT9M001_SHUTTER_WIDTH, mt9m001->total_h) < 0)
return -EIO;
- qctrl = soc_camera_find_qctrl(icd->ops, V4L2_CID_EXPOSURE);
- mt9m001->exposure = (524 + (total_h - 1) *
- (qctrl->maximum - qctrl->minimum)) /
- 1048 + qctrl->minimum;
- mt9m001->autoexposure = 1;
- } else
- mt9m001->autoexposure = 0;
- 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 mt9m001_video_probe(struct soc_camera_device *icd,
+static int mt9m001_video_probe(struct soc_camera_link *icl,
struct i2c_client *client)
{
struct mt9m001 *mt9m001 = to_mt9m001(client);
- struct soc_camera_link *icl = to_soc_camera_link(icd);
s32 data;
unsigned long flags;
int ret;
- /* 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);
-
/* Enable the chip */
data = reg_write(client, MT9M001_CHIP_ENABLE, 1);
dev_dbg(&client->dev, "write: %d\n", data);
dev_err(&client->dev, "Failed to initialise the camera\n");
/* mt9m001_init() has reset the chip, returning registers to defaults */
- mt9m001->gain = 64;
- mt9m001->exposure = 255;
-
- return ret;
+ return v4l2_ctrl_handler_setup(&mt9m001->hdl);
}
-static void mt9m001_video_remove(struct soc_camera_device *icd)
+static void mt9m001_video_remove(struct soc_camera_link *icl)
{
- 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);
}
return 0;
}
+static const struct v4l2_ctrl_ops mt9m001_ctrl_ops = {
+ .g_volatile_ctrl = mt9m001_g_volatile_ctrl,
+ .s_ctrl = mt9m001_s_ctrl,
+};
+
static struct v4l2_subdev_core_ops mt9m001_subdev_core_ops = {
- .g_ctrl = mt9m001_g_ctrl,
- .s_ctrl = mt9m001_s_ctrl,
.g_chip_ident = mt9m001_g_chip_ident,
#ifdef CONFIG_VIDEO_ADV_DEBUG
.g_register = mt9m001_g_register,
return 0;
}
+static int mt9m001_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);
+
+ /* MT9M001 has all capture_format parameters fixed */
+ cfg->flags = V4L2_MBUS_PCLK_SAMPLE_FALLING |
+ V4L2_MBUS_HSYNC_ACTIVE_HIGH | V4L2_MBUS_VSYNC_ACTIVE_HIGH |
+ V4L2_MBUS_DATA_ACTIVE_HIGH | V4L2_MBUS_MASTER;
+ cfg->type = V4L2_MBUS_PARALLEL;
+ cfg->flags = soc_camera_apply_board_flags(icl, cfg);
+
+ return 0;
+}
+
+static int mt9m001_s_mbus_config(struct v4l2_subdev *sd,
+ const struct v4l2_mbus_config *cfg)
+{
+ const struct i2c_client *client = v4l2_get_subdevdata(sd);
+ struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
+ struct mt9m001 *mt9m001 = to_mt9m001(client);
+ unsigned int bps = soc_mbus_get_fmtdesc(mt9m001->fmt->code)->bits_per_sample;
+
+ if (icl->set_bus_param)
+ return icl->set_bus_param(icl, 1 << (bps - 1));
+
+ /*
+ * Without board specific bus width settings we only support the
+ * sensors native bus width
+ */
+ return bps == 10 ? 0 : -EINVAL;
+}
+
static struct v4l2_subdev_video_ops mt9m001_subdev_video_ops = {
.s_stream = mt9m001_s_stream,
.s_mbus_fmt = mt9m001_s_fmt,
.g_crop = mt9m001_g_crop,
.cropcap = mt9m001_cropcap,
.enum_mbus_fmt = mt9m001_enum_fmt,
+ .g_mbus_config = mt9m001_g_mbus_config,
+ .s_mbus_config = mt9m001_s_mbus_config,
};
static struct v4l2_subdev_sensor_ops mt9m001_subdev_sensor_ops = {
const struct i2c_device_id *did)
{
struct mt9m001 *mt9m001;
- struct soc_camera_device *icd = client->dev.platform_data;
struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
- struct soc_camera_link *icl;
+ struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
int ret;
- if (!icd) {
- dev_err(&client->dev, "MT9M001: missing soc-camera data!\n");
- return -EINVAL;
- }
-
- icl = to_soc_camera_link(icd);
if (!icl) {
dev_err(&client->dev, "MT9M001 driver needs platform data\n");
return -EINVAL;
return -ENOMEM;
v4l2_i2c_subdev_init(&mt9m001->subdev, client, &mt9m001_subdev_ops);
+ v4l2_ctrl_handler_init(&mt9m001->hdl, 4);
+ v4l2_ctrl_new_std(&mt9m001->hdl, &mt9m001_ctrl_ops,
+ V4L2_CID_VFLIP, 0, 1, 1, 0);
+ v4l2_ctrl_new_std(&mt9m001->hdl, &mt9m001_ctrl_ops,
+ V4L2_CID_GAIN, 0, 127, 1, 64);
+ mt9m001->exposure = v4l2_ctrl_new_std(&mt9m001->hdl, &mt9m001_ctrl_ops,
+ V4L2_CID_EXPOSURE, 1, 255, 1, 255);
+ /*
+ * Simulated autoexposure. If enabled, we calculate shutter width
+ * ourselves in the driver based on vertical blanking and frame width
+ */
+ mt9m001->autoexposure = v4l2_ctrl_new_std_menu(&mt9m001->hdl,
+ &mt9m001_ctrl_ops, V4L2_CID_EXPOSURE_AUTO, 1, 0,
+ V4L2_EXPOSURE_AUTO);
+ mt9m001->subdev.ctrl_handler = &mt9m001->hdl;
+ if (mt9m001->hdl.error) {
+ int err = mt9m001->hdl.error;
- /* Second stage probe - when a capture adapter is there */
- icd->ops = &mt9m001_ops;
+ kfree(mt9m001);
+ return err;
+ }
+ v4l2_ctrl_auto_cluster(2, &mt9m001->autoexposure,
+ V4L2_EXPOSURE_MANUAL, true);
+ /* Second stage probe - when a capture adapter is there */
mt9m001->y_skip_top = 0;
mt9m001->rect.left = MT9M001_COLUMN_SKIP;
mt9m001->rect.top = MT9M001_ROW_SKIP;
mt9m001->rect.width = MT9M001_MAX_WIDTH;
mt9m001->rect.height = MT9M001_MAX_HEIGHT;
- /*
- * Simulated autoexposure. If enabled, we calculate shutter width
- * ourselves in the driver based on vertical blanking and frame width
- */
- mt9m001->autoexposure = 1;
-
- ret = mt9m001_video_probe(icd, client);
+ ret = mt9m001_video_probe(icl, client);
if (ret) {
- icd->ops = NULL;
+ v4l2_ctrl_handler_free(&mt9m001->hdl);
kfree(mt9m001);
}
static int mt9m001_remove(struct i2c_client *client)
{
struct mt9m001 *mt9m001 = to_mt9m001(client);
- struct soc_camera_device *icd = client->dev.platform_data;
+ struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
- icd->ops = NULL;
- mt9m001_video_remove(icd);
+ v4l2_device_unregister_subdev(&mt9m001->subdev);
+ v4l2_ctrl_handler_free(&mt9m001->hdl);
+ mt9m001_video_remove(icl);
kfree(mt9m001);
return 0;
git.openpandora.org / pandora-kernel.git / blobdiff