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[media] V4L: pxa_camera: convert to the new mbus-config subdev operations 

Switch from soc-camera specific .{query,set}_bus_param() to V4L2
subdevice .[gs]_mbus_config() operations.

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 2011-07-27 16:37:45 -03:00 committed by Mauro Carvalho Chehab
parent 92d2c339d2
commit 679419aa6e
1 changed files with 80 additions and 60 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

140
drivers/media/video/pxa_camera.c
View File

@ -214,6 +214,7 @@ struct pxa_camera_dev {
unsigned long ciclk;
unsigned long mclk;
u32 mclk_divisor;
u16 width_flags; /* max 10 bits */
struct list_head capture;
@ -1020,37 +1021,20 @@ static int test_platform_param(struct pxa_camera_dev *pcdev,
* quick capture interface supports both.
*/
*flags = (pcdev->platform_flags & PXA_CAMERA_MASTER ?
SOCAM_MASTER : SOCAM_SLAVE) |
SOCAM_HSYNC_ACTIVE_HIGH |
SOCAM_HSYNC_ACTIVE_LOW |
SOCAM_VSYNC_ACTIVE_HIGH |
SOCAM_VSYNC_ACTIVE_LOW |
SOCAM_DATA_ACTIVE_HIGH |
SOCAM_PCLK_SAMPLE_RISING |
SOCAM_PCLK_SAMPLE_FALLING;
V4L2_MBUS_MASTER : V4L2_MBUS_SLAVE) |
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 |
V4L2_MBUS_PCLK_SAMPLE_RISING |
V4L2_MBUS_PCLK_SAMPLE_FALLING;
/* If requested data width is supported by the platform, use it */
switch (buswidth) {
case 10:
if (!(pcdev->platform_flags & PXA_CAMERA_DATAWIDTH_10))
return -EINVAL;
*flags |= SOCAM_DATAWIDTH_10;
break;
case 9:
if (!(pcdev->platform_flags & PXA_CAMERA_DATAWIDTH_9))
return -EINVAL;
*flags |= SOCAM_DATAWIDTH_9;
break;
case 8:
if (!(pcdev->platform_flags & PXA_CAMERA_DATAWIDTH_8))
return -EINVAL;
*flags |= SOCAM_DATAWIDTH_8;
break;
default:
return -EINVAL;
}
if ((1 << (buswidth - 1)) & pcdev->width_flags)
return 0;
return 0;
return -EINVAL;
}
static void pxa_camera_setup_cicr(struct soc_camera_device *icd,
@ -1070,12 +1054,12 @@ static void pxa_camera_setup_cicr(struct soc_camera_device *icd,
* Datawidth is now guaranteed to be equal to one of the three values.
* We fix bit-per-pixel equal to data-width...
*/
switch (flags & SOCAM_DATAWIDTH_MASK) {
case SOCAM_DATAWIDTH_10:
switch (icd->current_fmt->host_fmt->bits_per_sample) {
case 10:
dw = 4;
bpp = 0x40;
break;
case SOCAM_DATAWIDTH_9:
case 9:
dw = 3;
bpp = 0x20;
break;
@ -1084,7 +1068,7 @@ static void pxa_camera_setup_cicr(struct soc_camera_device *icd,
* Actually it can only be 8 now,
* default is just to silence compiler warnings
*/
case SOCAM_DATAWIDTH_8:
case 8:
dw = 2;
bpp = 0;
}
@ -1093,11 +1077,11 @@ static void pxa_camera_setup_cicr(struct soc_camera_device *icd,
cicr4 |= CICR4_PCLK_EN;
if (pcdev->platform_flags & PXA_CAMERA_MCLK_EN)
cicr4 |= CICR4_MCLK_EN;
if (flags & SOCAM_PCLK_SAMPLE_FALLING)
if (flags & V4L2_MBUS_PCLK_SAMPLE_FALLING)
cicr4 |= CICR4_PCP;
if (flags & SOCAM_HSYNC_ACTIVE_LOW)
if (flags & V4L2_MBUS_HSYNC_ACTIVE_LOW)
cicr4 |= CICR4_HSP;
if (flags & SOCAM_VSYNC_ACTIVE_LOW)
if (flags & V4L2_MBUS_VSYNC_ACTIVE_LOW)
cicr4 |= CICR4_VSP;
cicr0 = __raw_readl(pcdev->base + CICR0);
@ -1151,9 +1135,11 @@ static void pxa_camera_setup_cicr(struct soc_camera_device *icd,
static int pxa_camera_set_bus_param(struct soc_camera_device *icd, __u32 pixfmt)
{
struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
struct soc_camera_host *ici = to_soc_camera_host(icd->parent);
struct pxa_camera_dev *pcdev = ici->priv;
unsigned long bus_flags, camera_flags, common_flags;
struct v4l2_mbus_config cfg = {.type = V4L2_MBUS_PARALLEL,};
unsigned long bus_flags, common_flags;
int ret;
struct pxa_cam *cam = icd->host_priv;
@ -1162,45 +1148,59 @@ static int pxa_camera_set_bus_param(struct soc_camera_device *icd, __u32 pixfmt)
if (ret < 0)
return ret;
camera_flags = icd->ops->query_bus_param(icd);
common_flags = soc_camera_bus_param_compatible(camera_flags, bus_flags);
if (!common_flags)
return -EINVAL;
ret = v4l2_subdev_call(sd, video, g_mbus_config, &cfg);
if (!ret) {
common_flags = soc_mbus_config_compatible(&cfg,
bus_flags);
if (!common_flags) {
dev_warn(icd->parent,
"Flags incompatible: camera 0x%x, host 0x%lx\n",
cfg.flags, bus_flags);
return -EINVAL;
}
} else if (ret != -ENOIOCTLCMD) {
return ret;
} else {
common_flags = bus_flags;
}
pcdev->channels = 1;
/* Make choises, based on platform preferences */
if ((common_flags & SOCAM_HSYNC_ACTIVE_HIGH) &&
(common_flags & SOCAM_HSYNC_ACTIVE_LOW)) {
if ((common_flags & V4L2_MBUS_HSYNC_ACTIVE_HIGH) &&
(common_flags & V4L2_MBUS_HSYNC_ACTIVE_LOW)) {
if (pcdev->platform_flags & PXA_CAMERA_HSP)
common_flags &= ~SOCAM_HSYNC_ACTIVE_HIGH;
common_flags &= ~V4L2_MBUS_HSYNC_ACTIVE_HIGH;
else
common_flags &= ~SOCAM_HSYNC_ACTIVE_LOW;
common_flags &= ~V4L2_MBUS_HSYNC_ACTIVE_LOW;
}
if ((common_flags & SOCAM_VSYNC_ACTIVE_HIGH) &&
(common_flags & SOCAM_VSYNC_ACTIVE_LOW)) {
if ((common_flags & V4L2_MBUS_VSYNC_ACTIVE_HIGH) &&
(common_flags & V4L2_MBUS_VSYNC_ACTIVE_LOW)) {
if (pcdev->platform_flags & PXA_CAMERA_VSP)
common_flags &= ~SOCAM_VSYNC_ACTIVE_HIGH;
common_flags &= ~V4L2_MBUS_VSYNC_ACTIVE_HIGH;
else
common_flags &= ~SOCAM_VSYNC_ACTIVE_LOW;
common_flags &= ~V4L2_MBUS_VSYNC_ACTIVE_LOW;
}
if ((common_flags & SOCAM_PCLK_SAMPLE_RISING) &&
(common_flags & SOCAM_PCLK_SAMPLE_FALLING)) {
if ((common_flags & V4L2_MBUS_PCLK_SAMPLE_RISING) &&
(common_flags & V4L2_MBUS_PCLK_SAMPLE_FALLING)) {
if (pcdev->platform_flags & PXA_CAMERA_PCP)
common_flags &= ~SOCAM_PCLK_SAMPLE_RISING;
common_flags &= ~V4L2_MBUS_PCLK_SAMPLE_RISING;
else
common_flags &= ~SOCAM_PCLK_SAMPLE_FALLING;
common_flags &= ~V4L2_MBUS_PCLK_SAMPLE_FALLING;
}
cfg.flags = common_flags;
ret = v4l2_subdev_call(sd, video, s_mbus_config, &cfg);
if (ret < 0 && ret != -ENOIOCTLCMD) {
dev_dbg(icd->parent, "camera s_mbus_config(0x%lx) returned %d\n",
common_flags, ret);
return ret;
}
cam->flags = common_flags;
ret = icd->ops->set_bus_param(icd, common_flags);
if (ret < 0)
return ret;
pxa_camera_setup_cicr(icd, common_flags, pixfmt);
return 0;
@ -1209,17 +1209,31 @@ static int pxa_camera_set_bus_param(struct soc_camera_device *icd, __u32 pixfmt)
static int pxa_camera_try_bus_param(struct soc_camera_device *icd,
unsigned char buswidth)
{
struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
struct soc_camera_host *ici = to_soc_camera_host(icd->parent);
struct pxa_camera_dev *pcdev = ici->priv;
unsigned long bus_flags, camera_flags;
struct v4l2_mbus_config cfg = {.type = V4L2_MBUS_PARALLEL,};
unsigned long bus_flags, common_flags;
int ret = test_platform_param(pcdev, buswidth, &bus_flags);
if (ret < 0)
return ret;
camera_flags = icd->ops->query_bus_param(icd);
ret = v4l2_subdev_call(sd, video, g_mbus_config, &cfg);
if (!ret) {
common_flags = soc_mbus_config_compatible(&cfg,
bus_flags);
if (!common_flags) {
dev_warn(icd->parent,
"Flags incompatible: camera 0x%x, host 0x%lx\n",
cfg.flags, bus_flags);
return -EINVAL;
}
} else if (ret == -ENOIOCTLCMD) {
ret = 0;
}
return soc_camera_bus_param_compatible(camera_flags, bus_flags) ? 0 : -EINVAL;
return ret;
}
static const struct soc_mbus_pixelfmt pxa_camera_formats[] = {
@ -1687,6 +1701,12 @@ static int __devinit pxa_camera_probe(struct platform_device *pdev)
"data widths, using default 10 bit\n");
pcdev->platform_flags |= PXA_CAMERA_DATAWIDTH_10;
}
if (pcdev->platform_flags & PXA_CAMERA_DATAWIDTH_8)
pcdev->width_flags = 1 << 7;
if (pcdev->platform_flags & PXA_CAMERA_DATAWIDTH_9)
pcdev->width_flags |= 1 << 8;
if (pcdev->platform_flags & PXA_CAMERA_DATAWIDTH_10)
pcdev->width_flags |= 1 << 9;
pcdev->mclk = pcdev->pdata->mclk_10khz * 10000;
if (!pcdev->mclk) {
dev_warn(&pdev->dev,