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[media] V4L: mx1_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 12:30:21 -03:00 committed by Mauro Carvalho Chehab
parent a4e9f10ba9
commit 8acbfd3306
1 changed files with 42 additions and 29 deletions
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71
drivers/media/video/mx1_camera.c
View File

@ -78,11 +78,10 @@
#define CSI_IRQ_MASK (CSISR_SFF_OR_INT | CSISR_RFF_OR_INT | \
CSISR_STATFF_INT | CSISR_RXFF_INT | CSISR_SOF_INT)
#define CSI_BUS_FLAGS (SOCAM_MASTER | SOCAM_HSYNC_ACTIVE_HIGH | \
SOCAM_VSYNC_ACTIVE_HIGH | SOCAM_VSYNC_ACTIVE_LOW | \
SOCAM_PCLK_SAMPLE_RISING | SOCAM_PCLK_SAMPLE_FALLING | \
SOCAM_DATA_ACTIVE_HIGH | SOCAM_DATA_ACTIVE_LOW | \
SOCAM_DATAWIDTH_8)
#define CSI_BUS_FLAGS (V4L2_MBUS_MASTER | V4L2_MBUS_HSYNC_ACTIVE_HIGH | \
V4L2_MBUS_VSYNC_ACTIVE_HIGH | V4L2_MBUS_VSYNC_ACTIVE_LOW | \
V4L2_MBUS_PCLK_SAMPLE_RISING | V4L2_MBUS_PCLK_SAMPLE_FALLING | \
V4L2_MBUS_DATA_ACTIVE_HIGH | V4L2_MBUS_DATA_ACTIVE_LOW)
#define MAX_VIDEO_MEM 16 /* Video memory limit in megabytes */
@ -490,59 +489,73 @@ static int mx1_camera_set_crop(struct soc_camera_device *icd,
static int mx1_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 mx1_camera_dev *pcdev = ici->priv;
unsigned long camera_flags, common_flags;
struct v4l2_mbus_config cfg = {.type = V4L2_MBUS_PARALLEL,};
unsigned long common_flags;
unsigned int csicr1;
int ret;
camera_flags = icd->ops->query_bus_param(icd);
/* MX1 supports only 8bit buswidth */
common_flags = soc_camera_bus_param_compatible(camera_flags,
CSI_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, CSI_BUS_FLAGS);
if (!common_flags) {
dev_warn(icd->parent,
"Flags incompatible: camera 0x%x, host 0x%x\n",
cfg.flags, CSI_BUS_FLAGS);
return -EINVAL;
}
} else if (ret != -ENOIOCTLCMD) {
return ret;
} else {
common_flags = CSI_BUS_FLAGS;
}
/* Make choises, based on platform choice */
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->pdata ||
pcdev->pdata->flags & MX1_CAMERA_VSYNC_HIGH)
common_flags &= ~SOCAM_VSYNC_ACTIVE_LOW;
common_flags &= ~V4L2_MBUS_VSYNC_ACTIVE_LOW;
else
common_flags &= ~SOCAM_VSYNC_ACTIVE_HIGH;
common_flags &= ~V4L2_MBUS_VSYNC_ACTIVE_HIGH;
}
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->pdata ||
pcdev->pdata->flags & MX1_CAMERA_PCLK_RISING)
common_flags &= ~SOCAM_PCLK_SAMPLE_FALLING;
common_flags &= ~V4L2_MBUS_PCLK_SAMPLE_FALLING;
else
common_flags &= ~SOCAM_PCLK_SAMPLE_RISING;
common_flags &= ~V4L2_MBUS_PCLK_SAMPLE_RISING;
}
if ((common_flags & SOCAM_DATA_ACTIVE_HIGH) &&
(common_flags & SOCAM_DATA_ACTIVE_LOW)) {
if ((common_flags & V4L2_MBUS_DATA_ACTIVE_HIGH) &&
(common_flags & V4L2_MBUS_DATA_ACTIVE_LOW)) {
if (!pcdev->pdata ||
pcdev->pdata->flags & MX1_CAMERA_DATA_HIGH)
common_flags &= ~SOCAM_DATA_ACTIVE_LOW;
common_flags &= ~V4L2_MBUS_DATA_ACTIVE_LOW;
else
common_flags &= ~SOCAM_DATA_ACTIVE_HIGH;
common_flags &= ~V4L2_MBUS_DATA_ACTIVE_HIGH;
}
ret = icd->ops->set_bus_param(icd, common_flags);
if (ret < 0)
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;
}
csicr1 = __raw_readl(pcdev->base + CSICR1);
if (common_flags & SOCAM_PCLK_SAMPLE_RISING)
if (common_flags & V4L2_MBUS_PCLK_SAMPLE_RISING)
csicr1 |= CSICR1_REDGE;
if (common_flags & SOCAM_VSYNC_ACTIVE_HIGH)
if (common_flags & V4L2_MBUS_VSYNC_ACTIVE_HIGH)
csicr1 |= CSICR1_SOF_POL;
if (common_flags & SOCAM_DATA_ACTIVE_LOW)
if (common_flags & V4L2_MBUS_DATA_ACTIVE_LOW)
csicr1 |= CSICR1_DATA_POL;
__raw_writel(csicr1, pcdev->base + CSICR1);