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path: root/drivers/media/video/mt9m001.c
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Diffstat (limited to 'drivers/media/video/mt9m001.c')
-rw-r--r--drivers/media/video/mt9m001.c435
1 files changed, 253 insertions, 182 deletions
diff --git a/drivers/media/video/mt9m001.c b/drivers/media/video/mt9m001.c
index 4d794b42d6cd..45388d2ce2fd 100644
--- a/drivers/media/video/mt9m001.c
+++ b/drivers/media/video/mt9m001.c
@@ -13,13 +13,13 @@
#include <linux/i2c.h>
#include <linux/log2.h>
-#include <media/v4l2-common.h>
+#include <media/v4l2-subdev.h>
#include <media/v4l2-chip-ident.h>
#include <media/soc_camera.h>
/* mt9m001 i2c address 0x5d
- * The platform has to define i2c_board_info
- * and call i2c_register_board_info() */
+ * The platform has to define ctruct i2c_board_info objects and link to them
+ * from struct soc_camera_link */
/* mt9m001 selected register addresses */
#define MT9M001_CHIP_VERSION 0x00
@@ -39,6 +39,13 @@
#define MT9M001_GLOBAL_GAIN 0x35
#define MT9M001_CHIP_ENABLE 0xF1
+#define MT9M001_MAX_WIDTH 1280
+#define MT9M001_MAX_HEIGHT 1024
+#define MT9M001_MIN_WIDTH 48
+#define MT9M001_MIN_HEIGHT 32
+#define MT9M001_COLUMN_SKIP 20
+#define MT9M001_ROW_SKIP 12
+
static const struct soc_camera_data_format mt9m001_colour_formats[] = {
/* Order important: first natively supported,
* second supported with a GPIO extender */
@@ -69,12 +76,20 @@ static const struct soc_camera_data_format mt9m001_monochrome_formats[] = {
};
struct mt9m001 {
- struct i2c_client *client;
- struct soc_camera_device icd;
+ struct v4l2_subdev subdev;
+ struct v4l2_rect rect; /* Sensor window */
+ __u32 fourcc;
int model; /* V4L2_IDENT_MT9M001* codes from v4l2-chip-ident.h */
+ unsigned int gain;
+ unsigned int exposure;
unsigned char autoexposure;
};
+static struct mt9m001 *to_mt9m001(const struct i2c_client *client)
+{
+ return container_of(i2c_get_clientdata(client), struct mt9m001, subdev);
+}
+
static int reg_read(struct i2c_client *client, const u8 reg)
{
s32 data = i2c_smbus_read_word_data(client, reg);
@@ -109,35 +124,20 @@ static int reg_clear(struct i2c_client *client, const u8 reg,
return reg_write(client, reg, ret & ~data);
}
-static int mt9m001_init(struct soc_camera_device *icd)
+static int mt9m001_init(struct i2c_client *client)
{
- struct i2c_client *client = to_i2c_client(icd->control);
- struct soc_camera_link *icl = client->dev.platform_data;
int ret;
- dev_dbg(icd->vdev->parent, "%s\n", __func__);
+ dev_dbg(&client->dev, "%s\n", __func__);
- if (icl->power) {
- ret = icl->power(&client->dev, 1);
- if (ret < 0) {
- dev_err(icd->vdev->parent,
- "Platform failed to power-on the camera.\n");
- return ret;
- }
- }
-
- /* The camera could have been already on, we reset it additionally */
- if (icl->reset)
- ret = icl->reset(&client->dev);
- else
- ret = -ENODEV;
+ /*
+ * We don't know, whether platform provides reset, issue a soft reset
+ * too. This returns all registers to their default values.
+ */
+ ret = reg_write(client, MT9M001_RESET, 1);
+ if (!ret)
+ ret = reg_write(client, MT9M001_RESET, 0);
- if (ret < 0) {
- /* Either no platform reset, or platform reset failed */
- ret = reg_write(client, MT9M001_RESET, 1);
- if (!ret)
- ret = reg_write(client, MT9M001_RESET, 0);
- }
/* Disable chip, synchronous option update */
if (!ret)
ret = reg_write(client, MT9M001_OUTPUT_CONTROL, 0);
@@ -145,36 +145,12 @@ static int mt9m001_init(struct soc_camera_device *icd)
return ret;
}
-static int mt9m001_release(struct soc_camera_device *icd)
+static int mt9m001_s_stream(struct v4l2_subdev *sd, int enable)
{
- struct i2c_client *client = to_i2c_client(icd->control);
- struct soc_camera_link *icl = client->dev.platform_data;
-
- /* Disable the chip */
- reg_write(client, MT9M001_OUTPUT_CONTROL, 0);
-
- if (icl->power)
- icl->power(&client->dev, 0);
-
- return 0;
-}
+ struct i2c_client *client = sd->priv;
-static int mt9m001_start_capture(struct soc_camera_device *icd)
-{
- struct i2c_client *client = to_i2c_client(icd->control);
-
- /* Switch to master "normal" mode */
- if (reg_write(client, MT9M001_OUTPUT_CONTROL, 2) < 0)
- return -EIO;
- return 0;
-}
-
-static int mt9m001_stop_capture(struct soc_camera_device *icd)
-{
- struct i2c_client *client = to_i2c_client(icd->control);
-
- /* Stop sensor readout */
- if (reg_write(client, MT9M001_OUTPUT_CONTROL, 0) < 0)
+ /* Switch to master "normal" mode or stop sensor readout */
+ if (reg_write(client, MT9M001_OUTPUT_CONTROL, enable ? 2 : 0) < 0)
return -EIO;
return 0;
}
@@ -182,8 +158,7 @@ static int mt9m001_stop_capture(struct soc_camera_device *icd)
static int mt9m001_set_bus_param(struct soc_camera_device *icd,
unsigned long flags)
{
- struct mt9m001 *mt9m001 = container_of(icd, struct mt9m001, icd);
- struct soc_camera_link *icl = mt9m001->client->dev.platform_data;
+ 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 */
@@ -205,8 +180,7 @@ static int mt9m001_set_bus_param(struct soc_camera_device *icd,
static unsigned long mt9m001_query_bus_param(struct soc_camera_device *icd)
{
- struct mt9m001 *mt9m001 = container_of(icd, struct mt9m001, icd);
- struct soc_camera_link *icl = mt9m001->client->dev.platform_data;
+ 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 |
@@ -220,13 +194,35 @@ static unsigned long mt9m001_query_bus_param(struct soc_camera_device *icd)
return soc_camera_apply_sensor_flags(icl, flags);
}
-static int mt9m001_set_crop(struct soc_camera_device *icd,
- struct v4l2_rect *rect)
+static int mt9m001_s_crop(struct v4l2_subdev *sd, struct v4l2_crop *a)
{
- struct i2c_client *client = to_i2c_client(icd->control);
- struct mt9m001 *mt9m001 = container_of(icd, struct mt9m001, icd);
+ struct i2c_client *client = sd->priv;
+ 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->fourcc == V4L2_PIX_FMT_SBGGR8 ||
+ mt9m001->fourcc == V4L2_PIX_FMT_SBGGR16)
+ /*
+ * Bayer format - even number of rows for simplicity,
+ * but let the user play with the top row.
+ */
+ rect.height = ALIGN(rect.height, 2);
+
+ /* Datasheet requirement: see register description */
+ rect.width = ALIGN(rect.width, 2);
+ rect.left = ALIGN(rect.left, 2);
+
+ soc_camera_limit_side(&rect.left, &rect.width,
+ MT9M001_COLUMN_SKIP, MT9M001_MIN_WIDTH, MT9M001_MAX_WIDTH);
+
+ soc_camera_limit_side(&rect.top, &rect.height,
+ MT9M001_ROW_SKIP, MT9M001_MIN_HEIGHT, MT9M001_MAX_HEIGHT);
+
+ total_h = rect.height + icd->y_skip_top + vblank;
/* Blanking and start values - default... */
ret = reg_write(client, MT9M001_HORIZONTAL_BLANKING, hblank);
@@ -236,66 +232,126 @@ static int mt9m001_set_crop(struct soc_camera_device *icd,
/* The caller provides a supported format, as verified per
* call to icd->try_fmt() */
if (!ret)
- ret = reg_write(client, MT9M001_COLUMN_START, rect->left);
+ ret = reg_write(client, MT9M001_COLUMN_START, rect.left);
if (!ret)
- ret = reg_write(client, MT9M001_ROW_START, rect->top);
+ ret = reg_write(client, MT9M001_ROW_START, rect.top);
if (!ret)
- ret = reg_write(client, MT9M001_WINDOW_WIDTH, rect->width - 1);
+ ret = reg_write(client, MT9M001_WINDOW_WIDTH, rect.width - 1);
if (!ret)
ret = reg_write(client, MT9M001_WINDOW_HEIGHT,
- rect->height + icd->y_skip_top - 1);
+ rect.height + icd->y_skip_top - 1);
if (!ret && mt9m001->autoexposure) {
- ret = reg_write(client, MT9M001_SHUTTER_WIDTH,
- rect->height + icd->y_skip_top + vblank);
+ 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);
- icd->exposure = (524 + (rect->height + icd->y_skip_top +
- vblank - 1) *
- (qctrl->maximum - qctrl->minimum)) /
+ mt9m001->exposure = (524 + (total_h - 1) *
+ (qctrl->maximum - qctrl->minimum)) /
1048 + qctrl->minimum;
}
}
+ if (!ret)
+ mt9m001->rect = rect;
+
return ret;
}
-static int mt9m001_set_fmt(struct soc_camera_device *icd,
- struct v4l2_format *f)
+static int mt9m001_g_crop(struct v4l2_subdev *sd, struct v4l2_crop *a)
+{
+ struct i2c_client *client = sd->priv;
+ struct mt9m001 *mt9m001 = to_mt9m001(client);
+
+ a->c = mt9m001->rect;
+ a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+
+ return 0;
+}
+
+static int mt9m001_cropcap(struct v4l2_subdev *sd, struct v4l2_cropcap *a)
+{
+ a->bounds.left = MT9M001_COLUMN_SKIP;
+ a->bounds.top = MT9M001_ROW_SKIP;
+ a->bounds.width = MT9M001_MAX_WIDTH;
+ a->bounds.height = MT9M001_MAX_HEIGHT;
+ a->defrect = a->bounds;
+ a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+ a->pixelaspect.numerator = 1;
+ a->pixelaspect.denominator = 1;
+
+ return 0;
+}
+
+static int mt9m001_g_fmt(struct v4l2_subdev *sd, struct v4l2_format *f)
{
- struct v4l2_rect rect = {
- .left = icd->x_current,
- .top = icd->y_current,
- .width = f->fmt.pix.width,
- .height = f->fmt.pix.height,
+ struct i2c_client *client = sd->priv;
+ struct mt9m001 *mt9m001 = to_mt9m001(client);
+ struct v4l2_pix_format *pix = &f->fmt.pix;
+
+ pix->width = mt9m001->rect.width;
+ pix->height = mt9m001->rect.height;
+ pix->pixelformat = mt9m001->fourcc;
+ pix->field = V4L2_FIELD_NONE;
+ pix->colorspace = V4L2_COLORSPACE_SRGB;
+
+ return 0;
+}
+
+static int mt9m001_s_fmt(struct v4l2_subdev *sd, struct v4l2_format *f)
+{
+ struct i2c_client *client = sd->priv;
+ struct mt9m001 *mt9m001 = to_mt9m001(client);
+ struct v4l2_pix_format *pix = &f->fmt.pix;
+ struct v4l2_crop a = {
+ .c = {
+ .left = mt9m001->rect.left,
+ .top = mt9m001->rect.top,
+ .width = pix->width,
+ .height = pix->height,
+ },
};
+ int ret;
/* No support for scaling so far, just crop. TODO: use skipping */
- return mt9m001_set_crop(icd, &rect);
+ ret = mt9m001_s_crop(sd, &a);
+ if (!ret) {
+ pix->width = mt9m001->rect.width;
+ pix->height = mt9m001->rect.height;
+ mt9m001->fourcc = pix->pixelformat;
+ }
+
+ return ret;
}
-static int mt9m001_try_fmt(struct soc_camera_device *icd,
- struct v4l2_format *f)
+static int mt9m001_try_fmt(struct v4l2_subdev *sd, struct v4l2_format *f)
{
+ struct i2c_client *client = sd->priv;
+ struct soc_camera_device *icd = client->dev.platform_data;
struct v4l2_pix_format *pix = &f->fmt.pix;
- v4l_bound_align_image(&pix->width, 48, 1280, 1,
- &pix->height, 32 + icd->y_skip_top,
- 1024 + icd->y_skip_top, 0, 0);
+ v4l_bound_align_image(&pix->width, MT9M001_MIN_WIDTH,
+ MT9M001_MAX_WIDTH, 1,
+ &pix->height, MT9M001_MIN_HEIGHT + icd->y_skip_top,
+ MT9M001_MAX_HEIGHT + icd->y_skip_top, 0, 0);
+
+ if (pix->pixelformat == V4L2_PIX_FMT_SBGGR8 ||
+ pix->pixelformat == V4L2_PIX_FMT_SBGGR16)
+ pix->height = ALIGN(pix->height - 1, 2);
return 0;
}
-static int mt9m001_get_chip_id(struct soc_camera_device *icd,
- struct v4l2_dbg_chip_ident *id)
+static int mt9m001_g_chip_ident(struct v4l2_subdev *sd,
+ struct v4l2_dbg_chip_ident *id)
{
- struct mt9m001 *mt9m001 = container_of(icd, struct mt9m001, icd);
+ struct i2c_client *client = sd->priv;
+ struct mt9m001 *mt9m001 = to_mt9m001(client);
if (id->match.type != V4L2_CHIP_MATCH_I2C_ADDR)
return -EINVAL;
- if (id->match.addr != mt9m001->client->addr)
+ if (id->match.addr != client->addr)
return -ENODEV;
id->ident = mt9m001->model;
@@ -305,10 +361,10 @@ static int mt9m001_get_chip_id(struct soc_camera_device *icd,
}
#ifdef CONFIG_VIDEO_ADV_DEBUG
-static int mt9m001_get_register(struct soc_camera_device *icd,
- struct v4l2_dbg_register *reg)
+static int mt9m001_g_register(struct v4l2_subdev *sd,
+ struct v4l2_dbg_register *reg)
{
- struct i2c_client *client = to_i2c_client(icd->control);
+ struct i2c_client *client = sd->priv;
if (reg->match.type != V4L2_CHIP_MATCH_I2C_ADDR || reg->reg > 0xff)
return -EINVAL;
@@ -325,10 +381,10 @@ static int mt9m001_get_register(struct soc_camera_device *icd,
return 0;
}
-static int mt9m001_set_register(struct soc_camera_device *icd,
- struct v4l2_dbg_register *reg)
+static int mt9m001_s_register(struct v4l2_subdev *sd,
+ struct v4l2_dbg_register *reg)
{
- struct i2c_client *client = to_i2c_client(icd->control);
+ struct i2c_client *client = sd->priv;
if (reg->match.type != V4L2_CHIP_MATCH_I2C_ADDR || reg->reg > 0xff)
return -EINVAL;
@@ -381,39 +437,17 @@ static const struct v4l2_queryctrl mt9m001_controls[] = {
}
};
-static int mt9m001_video_probe(struct soc_camera_device *);
-static void mt9m001_video_remove(struct soc_camera_device *);
-static int mt9m001_get_control(struct soc_camera_device *, struct v4l2_control *);
-static int mt9m001_set_control(struct soc_camera_device *, struct v4l2_control *);
-
static struct soc_camera_ops mt9m001_ops = {
- .owner = THIS_MODULE,
- .probe = mt9m001_video_probe,
- .remove = mt9m001_video_remove,
- .init = mt9m001_init,
- .release = mt9m001_release,
- .start_capture = mt9m001_start_capture,
- .stop_capture = mt9m001_stop_capture,
- .set_crop = mt9m001_set_crop,
- .set_fmt = mt9m001_set_fmt,
- .try_fmt = mt9m001_try_fmt,
.set_bus_param = mt9m001_set_bus_param,
.query_bus_param = mt9m001_query_bus_param,
.controls = mt9m001_controls,
.num_controls = ARRAY_SIZE(mt9m001_controls),
- .get_control = mt9m001_get_control,
- .set_control = mt9m001_set_control,
- .get_chip_id = mt9m001_get_chip_id,
-#ifdef CONFIG_VIDEO_ADV_DEBUG
- .get_register = mt9m001_get_register,
- .set_register = mt9m001_set_register,
-#endif
};
-static int mt9m001_get_control(struct soc_camera_device *icd, struct v4l2_control *ctrl)
+static int mt9m001_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
{
- struct i2c_client *client = to_i2c_client(icd->control);
- struct mt9m001 *mt9m001 = container_of(icd, struct mt9m001, icd);
+ struct i2c_client *client = sd->priv;
+ struct mt9m001 *mt9m001 = to_mt9m001(client);
int data;
switch (ctrl->id) {
@@ -426,14 +460,21 @@ static int mt9m001_get_control(struct soc_camera_device *icd, struct v4l2_contro
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;
+ break;
}
return 0;
}
-static int mt9m001_set_control(struct soc_camera_device *icd, struct v4l2_control *ctrl)
+static int mt9m001_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
{
- struct i2c_client *client = to_i2c_client(icd->control);
- struct mt9m001 *mt9m001 = container_of(icd, struct mt9m001, icd);
+ struct i2c_client *client = sd->priv;
+ struct mt9m001 *mt9m001 = to_mt9m001(client);
+ struct soc_camera_device *icd = client->dev.platform_data;
const struct v4l2_queryctrl *qctrl;
int data;
@@ -460,7 +501,7 @@ static int mt9m001_set_control(struct soc_camera_device *icd, struct v4l2_contro
unsigned long range = qctrl->default_value - qctrl->minimum;
data = ((ctrl->value - qctrl->minimum) * 8 + range / 2) / range;
- dev_dbg(&icd->dev, "Setting gain %d\n", data);
+ dev_dbg(&client->dev, "Setting gain %d\n", data);
data = reg_write(client, MT9M001_GLOBAL_GAIN, data);
if (data < 0)
return -EIO;
@@ -478,7 +519,7 @@ static int mt9m001_set_control(struct soc_camera_device *icd, struct v4l2_contro
else
data = ((gain - 64) * 7 + 28) / 56 + 96;
- dev_dbg(&icd->dev, "Setting gain from %d to %d\n",
+ dev_dbg(&client->dev, "Setting gain from %d to %d\n",
reg_read(client, MT9M001_GLOBAL_GAIN), data);
data = reg_write(client, MT9M001_GLOBAL_GAIN, data);
if (data < 0)
@@ -486,7 +527,7 @@ static int mt9m001_set_control(struct soc_camera_device *icd, struct v4l2_contro
}
/* Success */
- icd->gain = ctrl->value;
+ mt9m001->gain = ctrl->value;
break;
case V4L2_CID_EXPOSURE:
/* mt9m001 has maximum == default */
@@ -497,23 +538,27 @@ static int mt9m001_set_control(struct soc_camera_device *icd, struct v4l2_contro
unsigned long shutter = ((ctrl->value - qctrl->minimum) * 1048 +
range / 2) / range + 1;
- dev_dbg(&icd->dev, "Setting shutter width from %d to %lu\n",
- reg_read(client, MT9M001_SHUTTER_WIDTH), shutter);
+ dev_dbg(&client->dev,
+ "Setting shutter width from %d to %lu\n",
+ reg_read(client, MT9M001_SHUTTER_WIDTH),
+ shutter);
if (reg_write(client, MT9M001_SHUTTER_WIDTH, shutter) < 0)
return -EIO;
- icd->exposure = ctrl->value;
+ mt9m001->exposure = ctrl->value;
mt9m001->autoexposure = 0;
}
break;
case V4L2_CID_EXPOSURE_AUTO:
if (ctrl->value) {
const u16 vblank = 25;
- if (reg_write(client, MT9M001_SHUTTER_WIDTH, icd->height +
- icd->y_skip_top + vblank) < 0)
+ unsigned int total_h = mt9m001->rect.height +
+ icd->y_skip_top + vblank;
+ if (reg_write(client, MT9M001_SHUTTER_WIDTH,
+ total_h) < 0)
return -EIO;
qctrl = soc_camera_find_qctrl(icd->ops, V4L2_CID_EXPOSURE);
- icd->exposure = (524 + (icd->height + icd->y_skip_top + vblank - 1) *
- (qctrl->maximum - qctrl->minimum)) /
+ mt9m001->exposure = (524 + (total_h - 1) *
+ (qctrl->maximum - qctrl->minimum)) /
1048 + qctrl->minimum;
mt9m001->autoexposure = 1;
} else
@@ -525,14 +570,14 @@ static int mt9m001_set_control(struct soc_camera_device *icd, struct v4l2_contro
/* 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_device *icd,
+ struct i2c_client *client)
{
- struct i2c_client *client = to_i2c_client(icd->control);
- struct mt9m001 *mt9m001 = container_of(icd, struct mt9m001, icd);
- struct soc_camera_link *icl = client->dev.platform_data;
+ struct mt9m001 *mt9m001 = to_mt9m001(client);
+ struct soc_camera_link *icl = to_soc_camera_link(icd);
s32 data;
- int ret;
unsigned long flags;
+ int ret;
/* We must have a parent by now. And it cannot be a wrong one.
* So this entire test is completely redundant. */
@@ -542,7 +587,7 @@ static int mt9m001_video_probe(struct soc_camera_device *icd)
/* Enable the chip */
data = reg_write(client, MT9M001_CHIP_ENABLE, 1);
- dev_dbg(&icd->dev, "write: %d\n", data);
+ dev_dbg(&client->dev, "write: %d\n", data);
/* Read out the chip version register */
data = reg_read(client, MT9M001_CHIP_VERSION);
@@ -559,10 +604,9 @@ static int mt9m001_video_probe(struct soc_camera_device *icd)
icd->formats = mt9m001_monochrome_formats;
break;
default:
- ret = -ENODEV;
- dev_err(&icd->dev,
+ dev_err(&client->dev,
"No MT9M001 chip detected, register read %x\n", data);
- goto ei2c;
+ return -ENODEV;
}
icd->num_formats = 0;
@@ -585,42 +629,72 @@ static int mt9m001_video_probe(struct soc_camera_device *icd)
if (flags & SOCAM_DATAWIDTH_8)
icd->num_formats++;
- dev_info(&icd->dev, "Detected a MT9M001 chip ID %x (%s)\n", data,
+ mt9m001->fourcc = icd->formats->fourcc;
+
+ dev_info(&client->dev, "Detected a MT9M001 chip ID %x (%s)\n", data,
data == 0x8431 ? "C12STM" : "C12ST");
- /* Now that we know the model, we can start video */
- ret = soc_camera_video_start(icd);
- if (ret)
- goto eisis;
+ ret = mt9m001_init(client);
+ if (ret < 0)
+ dev_err(&client->dev, "Failed to initialise the camera\n");
- return 0;
+ /* mt9m001_init() has reset the chip, returning registers to defaults */
+ mt9m001->gain = 64;
+ mt9m001->exposure = 255;
-eisis:
-ei2c:
return ret;
}
static void mt9m001_video_remove(struct soc_camera_device *icd)
{
- struct mt9m001 *mt9m001 = container_of(icd, struct mt9m001, icd);
- struct soc_camera_link *icl = mt9m001->client->dev.platform_data;
+ struct soc_camera_link *icl = to_soc_camera_link(icd);
- dev_dbg(&icd->dev, "Video %x removed: %p, %p\n", mt9m001->client->addr,
+ dev_dbg(&icd->dev, "Video removed: %p, %p\n",
icd->dev.parent, icd->vdev);
- soc_camera_video_stop(icd);
if (icl->free_bus)
icl->free_bus(icl);
}
+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,
+ .s_register = mt9m001_s_register,
+#endif
+};
+
+static struct v4l2_subdev_video_ops mt9m001_subdev_video_ops = {
+ .s_stream = mt9m001_s_stream,
+ .s_fmt = mt9m001_s_fmt,
+ .g_fmt = mt9m001_g_fmt,
+ .try_fmt = mt9m001_try_fmt,
+ .s_crop = mt9m001_s_crop,
+ .g_crop = mt9m001_g_crop,
+ .cropcap = mt9m001_cropcap,
+};
+
+static struct v4l2_subdev_ops mt9m001_subdev_ops = {
+ .core = &mt9m001_subdev_core_ops,
+ .video = &mt9m001_subdev_video_ops,
+};
+
static int mt9m001_probe(struct i2c_client *client,
const struct i2c_device_id *did)
{
struct mt9m001 *mt9m001;
- struct soc_camera_device *icd;
+ struct soc_camera_device *icd = client->dev.platform_data;
struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
- struct soc_camera_link *icl = client->dev.platform_data;
+ struct soc_camera_link *icl;
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;
@@ -636,43 +710,40 @@ static int mt9m001_probe(struct i2c_client *client,
if (!mt9m001)
return -ENOMEM;
- mt9m001->client = client;
- i2c_set_clientdata(client, mt9m001);
+ v4l2_i2c_subdev_init(&mt9m001->subdev, client, &mt9m001_subdev_ops);
/* Second stage probe - when a capture adapter is there */
- icd = &mt9m001->icd;
- icd->ops = &mt9m001_ops;
- icd->control = &client->dev;
- icd->x_min = 20;
- icd->y_min = 12;
- icd->x_current = 20;
- icd->y_current = 12;
- icd->width_min = 48;
- icd->width_max = 1280;
- icd->height_min = 32;
- icd->height_max = 1024;
- icd->y_skip_top = 1;
- icd->iface = icl->bus_id;
+ icd->ops = &mt9m001_ops;
+ icd->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 = soc_camera_device_register(icd);
- if (ret)
- goto eisdr;
-
- return 0;
+ ret = mt9m001_video_probe(icd, client);
+ if (ret) {
+ icd->ops = NULL;
+ i2c_set_clientdata(client, NULL);
+ kfree(mt9m001);
+ }
-eisdr:
- kfree(mt9m001);
return ret;
}
static int mt9m001_remove(struct i2c_client *client)
{
- struct mt9m001 *mt9m001 = i2c_get_clientdata(client);
+ struct mt9m001 *mt9m001 = to_mt9m001(client);
+ struct soc_camera_device *icd = client->dev.platform_data;
- soc_camera_device_unregister(&mt9m001->icd);
+ icd->ops = NULL;
+ mt9m001_video_remove(icd);
+ i2c_set_clientdata(client, NULL);
+ client->driver = NULL;
kfree(mt9m001);
return 0;