#include <linux/slab.h>
#include <linux/kernel.h>
#include <linux/delay.h>
+#include <linux/v4l2-mediabus.h>
#include <linux/videodev2.h>
-#include <media/v4l2-chip-ident.h>
-#include <media/v4l2-subdev.h>
+
#include <media/soc_camera.h>
#include <media/tw9910.h>
+#include <media/v4l2-chip-ident.h>
+#include <media/v4l2-subdev.h>
#define GET_ID(val) ((val & 0xF8) >> 3)
#define GET_REV(val) (val & 0x07)
#define RTSEL_FIELD 0x06 /* 0110 = FIELD */
#define RTSEL_RTCO 0x07 /* 0111 = RTCO ( Real Time Control ) */
+/* HSYNC start and end are constant for now */
+#define HSYNC_START 0x0260
+#define HSYNC_END 0x0300
+
/*
* structure
*/
u16 vscale;
};
-struct tw9910_cropping_ctrl {
- u16 vdelay;
- u16 vactive;
- u16 hdelay;
- u16 hactive;
-};
-
-struct tw9910_hsync_ctrl {
- u16 start;
- u16 end;
-};
-
struct tw9910_priv {
struct v4l2_subdev subdev;
struct tw9910_video_info *info;
const struct tw9910_scale_ctrl *scale;
+ v4l2_std_id norm;
u32 revision;
};
},
};
-static const struct tw9910_hsync_ctrl tw9910_hsync_ctrl = {
- .start = 0x0260,
- .end = 0x0300,
-};
-
/*
* general function
*/
return ret;
}
-static int tw9910_set_hsync(struct i2c_client *client,
- const struct tw9910_hsync_ctrl *hsync)
+static int tw9910_set_hsync(struct i2c_client *client)
{
struct tw9910_priv *priv = to_tw9910(client);
int ret;
/* bit 10 - 3 */
ret = i2c_smbus_write_byte_data(client, HSBEGIN,
- (hsync->start & 0x07F8) >> 3);
+ (HSYNC_START & 0x07F8) >> 3);
if (ret < 0)
return ret;
/* bit 10 - 3 */
ret = i2c_smbus_write_byte_data(client, HSEND,
- (hsync->end & 0x07F8) >> 3);
+ (HSYNC_END & 0x07F8) >> 3);
if (ret < 0)
return ret;
/* bit 2 - 0 */
if (1 == priv->revision)
ret = tw9910_mask_set(client, HSLOWCTL, 0x77,
- (hsync->start & 0x0007) << 4 |
- (hsync->end & 0x0007));
+ (HSYNC_START & 0x0007) << 4 |
+ (HSYNC_END & 0x0007));
return ret;
}
return tw9910_mask_set(client, ACNTL2, ACNTL2_PDN_MASK, acntl2);
}
-static const struct tw9910_scale_ctrl*
-tw9910_select_norm(struct soc_camera_device *icd, u32 width, u32 height)
+static const struct tw9910_scale_ctrl *tw9910_select_norm(v4l2_std_id norm,
+ u32 width, u32 height)
{
const struct tw9910_scale_ctrl *scale;
const struct tw9910_scale_ctrl *ret = NULL;
- v4l2_std_id norm = icd->vdev->current_norm;
__u32 diff = 0xffffffff, tmp;
int size, i;
}
/*
- * soc_camera_ops function
+ * subdevice operations
*/
static int tw9910_s_stream(struct v4l2_subdev *sd, int enable)
{
return tw9910_power(client, enable);
}
-static int tw9910_set_bus_param(struct soc_camera_device *icd,
- unsigned long flags)
+static int tw9910_g_std(struct v4l2_subdev *sd, v4l2_std_id *norm)
{
- struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
struct i2c_client *client = v4l2_get_subdevdata(sd);
- u8 val = VSSL_VVALID | HSSL_DVALID;
+ struct tw9910_priv *priv = to_tw9910(client);
- /*
- * set OUTCTR1
- *
- * We use VVALID and DVALID signals to control VSYNC and HSYNC
- * outputs, in this mode their polarity is inverted.
- */
- if (flags & SOCAM_HSYNC_ACTIVE_LOW)
- val |= HSP_HI;
+ *norm = priv->norm;
- if (flags & SOCAM_VSYNC_ACTIVE_LOW)
- val |= VSP_HI;
-
- return i2c_smbus_write_byte_data(client, OUTCTR1, val);
+ return 0;
}
-static unsigned long tw9910_query_bus_param(struct soc_camera_device *icd)
+static int tw9910_s_std(struct v4l2_subdev *sd, v4l2_std_id norm)
{
- struct i2c_client *client = to_i2c_client(to_soc_camera_control(icd));
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
struct tw9910_priv *priv = to_tw9910(client);
- struct soc_camera_link *icl = to_soc_camera_link(icd);
- unsigned long flags = SOCAM_PCLK_SAMPLE_RISING | SOCAM_MASTER |
- SOCAM_VSYNC_ACTIVE_HIGH | SOCAM_HSYNC_ACTIVE_HIGH |
- SOCAM_VSYNC_ACTIVE_LOW | SOCAM_HSYNC_ACTIVE_LOW |
- SOCAM_DATA_ACTIVE_HIGH | priv->info->buswidth;
- return soc_camera_apply_sensor_flags(icl, flags);
-}
-
-static int tw9910_s_std(struct v4l2_subdev *sd, v4l2_std_id norm)
-{
- int ret = -EINVAL;
+ if (!(norm & (V4L2_STD_NTSC | V4L2_STD_PAL)))
+ return -EINVAL;
- if (norm & (V4L2_STD_NTSC | V4L2_STD_PAL))
- ret = 0;
+ priv->norm = norm;
- return ret;
+ return 0;
}
static int tw9910_g_chip_ident(struct v4l2_subdev *sd,
}
#endif
-static int tw9910_s_crop(struct v4l2_subdev *sd, struct v4l2_crop *a)
+static int tw9910_set_frame(struct v4l2_subdev *sd, u32 *width, u32 *height)
{
- struct v4l2_rect *rect = &a->c;
struct i2c_client *client = v4l2_get_subdevdata(sd);
struct tw9910_priv *priv = to_tw9910(client);
- struct soc_camera_device *icd = client->dev.platform_data;
- int ret = -EINVAL;
- u8 val;
+ int ret = -EINVAL;
+ u8 val;
/*
* select suitable norm
*/
- priv->scale = tw9910_select_norm(icd, rect->width, rect->height);
+ priv->scale = tw9910_select_norm(priv->norm, *width, *height);
if (!priv->scale)
goto tw9910_set_fmt_error;
/*
* set hsync
*/
- ret = tw9910_set_hsync(client, &tw9910_hsync_ctrl);
+ ret = tw9910_set_hsync(client);
if (ret < 0)
goto tw9910_set_fmt_error;
- rect->width = priv->scale->width;
- rect->height = priv->scale->height;
- rect->left = 0;
- rect->top = 0;
+ *width = priv->scale->width;
+ *height = priv->scale->height;
return ret;
struct i2c_client *client = v4l2_get_subdevdata(sd);
struct tw9910_priv *priv = to_tw9910(client);
- if (!priv->scale) {
- int ret;
- struct v4l2_crop crop = {
- .c = {
- .left = 0,
- .top = 0,
- .width = 640,
- .height = 480,
- },
- };
- ret = tw9910_s_crop(sd, &crop);
- if (ret < 0)
- return ret;
- }
-
a->c.left = 0;
a->c.top = 0;
- a->c.width = priv->scale->width;
- a->c.height = priv->scale->height;
+ if (priv->norm & V4L2_STD_NTSC) {
+ a->c.width = 640;
+ a->c.height = 480;
+ } else {
+ a->c.width = 768;
+ a->c.height = 576;
+ }
a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
return 0;
static int tw9910_cropcap(struct v4l2_subdev *sd, struct v4l2_cropcap *a)
{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ struct tw9910_priv *priv = to_tw9910(client);
+
a->bounds.left = 0;
a->bounds.top = 0;
- a->bounds.width = 768;
- a->bounds.height = 576;
- a->defrect.left = 0;
- a->defrect.top = 0;
- a->defrect.width = 640;
- a->defrect.height = 480;
+ if (priv->norm & V4L2_STD_NTSC) {
+ a->bounds.width = 640;
+ a->bounds.height = 480;
+ } else {
+ a->bounds.width = 768;
+ a->bounds.height = 576;
+ }
+ a->defrect = a->bounds;
a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
a->pixelaspect.numerator = 1;
a->pixelaspect.denominator = 1;
if (!priv->scale) {
int ret;
- struct v4l2_crop crop = {
- .c = {
- .left = 0,
- .top = 0,
- .width = 640,
- .height = 480,
- },
- };
- ret = tw9910_s_crop(sd, &crop);
+ u32 width = 640, height = 480;
+ ret = tw9910_set_frame(sd, &width, &height);
if (ret < 0)
return ret;
}
static int tw9910_s_fmt(struct v4l2_subdev *sd,
struct v4l2_mbus_framefmt *mf)
{
- struct i2c_client *client = v4l2_get_subdevdata(sd);
- struct tw9910_priv *priv = to_tw9910(client);
- /* See tw9910_s_crop() - no proper cropping support */
- struct v4l2_crop a = {
- .c = {
- .left = 0,
- .top = 0,
- .width = mf->width,
- .height = mf->height,
- },
- };
+ u32 width = mf->width, height = mf->height;
int ret;
WARN_ON(mf->field != V4L2_FIELD_ANY &&
mf->colorspace = V4L2_COLORSPACE_JPEG;
- ret = tw9910_s_crop(sd, &a);
+ ret = tw9910_set_frame(sd, &width, &height);
if (!ret) {
- mf->width = priv->scale->width;
- mf->height = priv->scale->height;
+ mf->width = width;
+ mf->height = height;
}
return ret;
}
struct v4l2_mbus_framefmt *mf)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
- struct soc_camera_device *icd = client->dev.platform_data;
+ struct tw9910_priv *priv = to_tw9910(client);
const struct tw9910_scale_ctrl *scale;
if (V4L2_FIELD_ANY == mf->field) {
/*
* select suitable norm
*/
- scale = tw9910_select_norm(icd, mf->width, mf->height);
+ scale = tw9910_select_norm(priv->norm, mf->width, mf->height);
if (!scale)
return -EINVAL;
return 0;
}
-static int tw9910_video_probe(struct soc_camera_device *icd,
- struct i2c_client *client)
+static int tw9910_video_probe(struct i2c_client *client)
{
struct tw9910_priv *priv = to_tw9910(client);
s32 id;
- /* 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);
-
/*
* tw9910 only use 8 or 16 bit bus width
*/
dev_info(&client->dev,
"tw9910 Product ID %0x:%0x\n", id, priv->revision);
- icd->vdev->tvnorms = V4L2_STD_NTSC | V4L2_STD_PAL;
- icd->vdev->current_norm = V4L2_STD_NTSC;
+ priv->norm = V4L2_STD_NTSC;
return 0;
}
-static struct soc_camera_ops tw9910_ops = {
- .set_bus_param = tw9910_set_bus_param,
- .query_bus_param = tw9910_query_bus_param,
-};
-
static struct v4l2_subdev_core_ops tw9910_subdev_core_ops = {
.g_chip_ident = tw9910_g_chip_ident,
.s_std = tw9910_s_std,
+ .g_std = tw9910_g_std,
#ifdef CONFIG_VIDEO_ADV_DEBUG
.g_register = tw9910_g_register,
.s_register = tw9910_s_register,
return 0;
}
+static int tw9910_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_PCLK_SAMPLE_RISING | V4L2_MBUS_MASTER |
+ V4L2_MBUS_VSYNC_ACTIVE_HIGH | V4L2_MBUS_VSYNC_ACTIVE_LOW |
+ V4L2_MBUS_HSYNC_ACTIVE_HIGH | V4L2_MBUS_HSYNC_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 tw9910_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);
+ u8 val = VSSL_VVALID | HSSL_DVALID;
+ unsigned long flags = soc_camera_apply_board_flags(icl, cfg);
+
+ /*
+ * set OUTCTR1
+ *
+ * We use VVALID and DVALID signals to control VSYNC and HSYNC
+ * outputs, in this mode their polarity is inverted.
+ */
+ if (flags & V4L2_MBUS_HSYNC_ACTIVE_LOW)
+ val |= HSP_HI;
+
+ if (flags & V4L2_MBUS_VSYNC_ACTIVE_LOW)
+ val |= VSP_HI;
+
+ return i2c_smbus_write_byte_data(client, OUTCTR1, val);
+}
+
static struct v4l2_subdev_video_ops tw9910_subdev_video_ops = {
.s_stream = tw9910_s_stream,
.g_mbus_fmt = tw9910_g_fmt,
.try_mbus_fmt = tw9910_try_fmt,
.cropcap = tw9910_cropcap,
.g_crop = tw9910_g_crop,
- .s_crop = tw9910_s_crop,
.enum_mbus_fmt = tw9910_enum_fmt,
+ .g_mbus_config = tw9910_g_mbus_config,
+ .s_mbus_config = tw9910_s_mbus_config,
};
static struct v4l2_subdev_ops tw9910_subdev_ops = {
const struct i2c_device_id *did)
{
- struct tw9910_priv *priv;
- struct tw9910_video_info *info;
- struct soc_camera_device *icd = client->dev.platform_data;
- struct i2c_adapter *adapter =
+ struct tw9910_priv *priv;
+ struct tw9910_video_info *info;
+ struct i2c_adapter *adapter =
to_i2c_adapter(client->dev.parent);
- struct soc_camera_link *icl;
- int ret;
+ struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
+ int ret;
- if (!icd) {
- dev_err(&client->dev, "TW9910: missing soc-camera data!\n");
+ if (!icl || !icl->priv) {
+ dev_err(&client->dev, "TW9910: missing platform data!\n");
return -EINVAL;
}
- icl = to_soc_camera_link(icd);
- if (!icl || !icl->priv)
- return -EINVAL;
-
info = icl->priv;
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
v4l2_i2c_subdev_init(&priv->subdev, client, &tw9910_subdev_ops);
- icd->ops = &tw9910_ops;
- icd->iface = icl->bus_id;
-
- ret = tw9910_video_probe(icd, client);
- if (ret) {
- icd->ops = NULL;
+ ret = tw9910_video_probe(client);
+ if (ret)
kfree(priv);
- }
return ret;
}
static int tw9910_remove(struct i2c_client *client)
{
struct tw9910_priv *priv = to_tw9910(client);
- struct soc_camera_device *icd = client->dev.platform_data;
- icd->ops = NULL;
kfree(priv);
return 0;
}
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