[media] V4L: tw9910: remove a not really implemented cropping support
Cropping is not really correctly implemented by this driver and only needlessly obfuscates the code. Remove it. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Guennadi Liakhovetski
Mauro Carvalho Chehab
parent
022e52cfe8
commit
2ad90b7123
1 changed files with 46 additions and 83 deletions
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@ -203,6 +203,10 @@
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#define RTSEL_FIELD 0x06 /* 0110 = FIELD */
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#define RTSEL_RTCO 0x07 /* 0111 = RTCO ( Real Time Control ) */
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/* HSYNC start and end are constant for now */
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#define HSYNC_START 0x0260
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#define HSYNC_END 0x0300
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/*
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* structure
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*/
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@ -220,18 +224,6 @@ struct tw9910_scale_ctrl {
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u16 vscale;
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};
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struct tw9910_cropping_ctrl {
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u16 vdelay;
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u16 vactive;
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u16 hdelay;
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u16 hactive;
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};
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struct tw9910_hsync_ctrl {
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u16 start;
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u16 end;
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};
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struct tw9910_priv {
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struct v4l2_subdev subdev;
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struct tw9910_video_info *info;
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@ -329,11 +321,6 @@ static const struct tw9910_scale_ctrl tw9910_pal_scales[] = {
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},
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};
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static const struct tw9910_hsync_ctrl tw9910_hsync_ctrl = {
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.start = 0x0260,
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.end = 0x0300,
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};
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/*
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* general function
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*/
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@ -378,21 +365,20 @@ static int tw9910_set_scale(struct i2c_client *client,
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return ret;
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}
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static int tw9910_set_hsync(struct i2c_client *client,
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const struct tw9910_hsync_ctrl *hsync)
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static int tw9910_set_hsync(struct i2c_client *client)
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{
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struct tw9910_priv *priv = to_tw9910(client);
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int ret;
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/* bit 10 - 3 */
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ret = i2c_smbus_write_byte_data(client, HSBEGIN,
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(hsync->start & 0x07F8) >> 3);
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(HSYNC_START & 0x07F8) >> 3);
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if (ret < 0)
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return ret;
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/* bit 10 - 3 */
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ret = i2c_smbus_write_byte_data(client, HSEND,
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(hsync->end & 0x07F8) >> 3);
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(HSYNC_END & 0x07F8) >> 3);
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if (ret < 0)
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return ret;
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@ -400,8 +386,8 @@ static int tw9910_set_hsync(struct i2c_client *client,
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/* bit 2 - 0 */
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if (1 == priv->revision)
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ret = tw9910_mask_set(client, HSLOWCTL, 0x77,
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(hsync->start & 0x0007) << 4 |
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(hsync->end & 0x0007));
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(HSYNC_START & 0x0007) << 4 |
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(HSYNC_END & 0x0007));
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return ret;
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}
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@ -433,8 +419,8 @@ static int tw9910_power(struct i2c_client *client, int enable)
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return tw9910_mask_set(client, ACNTL2, ACNTL2_PDN_MASK, acntl2);
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}
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static const struct tw9910_scale_ctrl*
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tw9910_select_norm(struct soc_camera_device *icd, u32 width, u32 height)
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static const struct tw9910_scale_ctrl *tw9910_select_norm(struct soc_camera_device *icd,
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u32 width, u32 height)
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{
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const struct tw9910_scale_ctrl *scale;
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const struct tw9910_scale_ctrl *ret = NULL;
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@ -510,10 +496,13 @@ static int tw9910_s_stream(struct v4l2_subdev *sd, int enable)
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static int tw9910_set_bus_param(struct soc_camera_device *icd,
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unsigned long flags)
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{
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struct soc_camera_link *icl = to_soc_camera_link(icd);
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struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
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struct i2c_client *client = v4l2_get_subdevdata(sd);
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u8 val = VSSL_VVALID | HSSL_DVALID;
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flags = soc_camera_apply_sensor_flags(icl, flags);
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/*
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* set OUTCTR1
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*
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@ -600,19 +589,18 @@ static int tw9910_s_register(struct v4l2_subdev *sd,
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}
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#endif
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static int tw9910_s_crop(struct v4l2_subdev *sd, struct v4l2_crop *a)
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static int tw9910_set_frame(struct v4l2_subdev *sd, u32 *width, u32 *height)
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{
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struct v4l2_rect *rect = &a->c;
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struct i2c_client *client = v4l2_get_subdevdata(sd);
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struct tw9910_priv *priv = to_tw9910(client);
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struct soc_camera_device *icd = client->dev.platform_data;
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int ret = -EINVAL;
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u8 val;
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int ret = -EINVAL;
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u8 val;
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/*
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* select suitable norm
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*/
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priv->scale = tw9910_select_norm(icd, rect->width, rect->height);
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priv->scale = tw9910_select_norm(icd, *width, *height);
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if (!priv->scale)
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goto tw9910_set_fmt_error;
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@ -670,14 +658,12 @@ static int tw9910_s_crop(struct v4l2_subdev *sd, struct v4l2_crop *a)
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/*
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* set hsync
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*/
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ret = tw9910_set_hsync(client, &tw9910_hsync_ctrl);
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ret = tw9910_set_hsync(client);
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if (ret < 0)
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goto tw9910_set_fmt_error;
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rect->width = priv->scale->width;
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rect->height = priv->scale->height;
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rect->left = 0;
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rect->top = 0;
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*width = priv->scale->width;
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*height = priv->scale->height;
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return ret;
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@ -692,27 +678,17 @@ static int tw9910_s_crop(struct v4l2_subdev *sd, struct v4l2_crop *a)
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static int tw9910_g_crop(struct v4l2_subdev *sd, struct v4l2_crop *a)
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{
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struct i2c_client *client = v4l2_get_subdevdata(sd);
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struct tw9910_priv *priv = to_tw9910(client);
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if (!priv->scale) {
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int ret;
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struct v4l2_crop crop = {
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.c = {
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.left = 0,
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.top = 0,
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.width = 640,
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.height = 480,
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},
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};
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ret = tw9910_s_crop(sd, &crop);
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if (ret < 0)
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return ret;
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}
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struct soc_camera_device *icd = client->dev.platform_data;
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a->c.left = 0;
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a->c.top = 0;
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a->c.width = priv->scale->width;
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a->c.height = priv->scale->height;
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if (icd->vdev->current_norm & V4L2_STD_NTSC) {
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a->c.width = 640;
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a->c.height = 480;
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} else {
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a->c.width = 768;
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a->c.height = 576;
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}
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a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
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return 0;
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@ -720,14 +696,19 @@ static int tw9910_g_crop(struct v4l2_subdev *sd, struct v4l2_crop *a)
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static int tw9910_cropcap(struct v4l2_subdev *sd, struct v4l2_cropcap *a)
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{
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struct i2c_client *client = v4l2_get_subdevdata(sd);
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struct soc_camera_device *icd = client->dev.platform_data;
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a->bounds.left = 0;
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a->bounds.top = 0;
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a->bounds.width = 768;
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a->bounds.height = 576;
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a->defrect.left = 0;
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a->defrect.top = 0;
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a->defrect.width = 640;
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a->defrect.height = 480;
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if (icd->vdev->current_norm & V4L2_STD_NTSC) {
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a->bounds.width = 640;
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a->bounds.height = 480;
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} else {
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a->bounds.width = 768;
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a->bounds.height = 576;
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}
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a->defrect = a->bounds;
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a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
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a->pixelaspect.numerator = 1;
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a->pixelaspect.denominator = 1;
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@ -743,15 +724,8 @@ static int tw9910_g_fmt(struct v4l2_subdev *sd,
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if (!priv->scale) {
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int ret;
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struct v4l2_crop crop = {
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.c = {
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.left = 0,
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.top = 0,
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.width = 640,
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.height = 480,
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},
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};
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ret = tw9910_s_crop(sd, &crop);
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u32 width = 640, height = 480;
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ret = tw9910_set_frame(sd, &width, &height);
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if (ret < 0)
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return ret;
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}
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@ -768,17 +742,7 @@ static int tw9910_g_fmt(struct v4l2_subdev *sd,
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static int tw9910_s_fmt(struct v4l2_subdev *sd,
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struct v4l2_mbus_framefmt *mf)
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{
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struct i2c_client *client = v4l2_get_subdevdata(sd);
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struct tw9910_priv *priv = to_tw9910(client);
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/* See tw9910_s_crop() - no proper cropping support */
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struct v4l2_crop a = {
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.c = {
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.left = 0,
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.top = 0,
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.width = mf->width,
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.height = mf->height,
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},
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};
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u32 width = mf->width, height = mf->height;
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int ret;
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WARN_ON(mf->field != V4L2_FIELD_ANY &&
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@ -792,10 +756,10 @@ static int tw9910_s_fmt(struct v4l2_subdev *sd,
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mf->colorspace = V4L2_COLORSPACE_JPEG;
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ret = tw9910_s_crop(sd, &a);
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ret = tw9910_set_frame(sd, &width, &height);
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if (!ret) {
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mf->width = priv->scale->width;
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mf->height = priv->scale->height;
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mf->width = width;
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mf->height = height;
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}
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return ret;
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}
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@ -905,7 +869,6 @@ static struct v4l2_subdev_video_ops tw9910_subdev_video_ops = {
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.try_mbus_fmt = tw9910_try_fmt,
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.cropcap = tw9910_cropcap,
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.g_crop = tw9910_g_crop,
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.s_crop = tw9910_s_crop,
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.enum_mbus_fmt = tw9910_enum_fmt,
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};
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