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authorGuennadi Liakhovetski <g.liakhovetski@gmx.de>2011-07-27 18:17:56 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2011-11-03 18:27:51 -0200
commite1db704326c9a5164da4e24b01e487c0be687fa2 (patch)
tree4b30a59b96cfa87370461d5b8b7f51e9f71b1e04 /drivers/media
parent679419aa6e2590d561a8c1df3858d6b284c5cc58 (diff)
downloadblackbird-op-linux-e1db704326c9a5164da4e24b01e487c0be687fa2.tar.gz
blackbird-op-linux-e1db704326c9a5164da4e24b01e487c0be687fa2.zip
[media] V4L: sh_mobile_ceu_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>
Diffstat (limited to 'drivers/media')
-rw-r--r--drivers/media/video/sh_mobile_ceu_camera.c156
1 files changed, 82 insertions, 74 deletions
diff --git a/drivers/media/video/sh_mobile_ceu_camera.c b/drivers/media/video/sh_mobile_ceu_camera.c
index d1359f441a04..59101c0be869 100644
--- a/drivers/media/video/sh_mobile_ceu_camera.c
+++ b/drivers/media/video/sh_mobile_ceu_camera.c
@@ -144,30 +144,6 @@ static struct sh_mobile_ceu_buffer *to_ceu_vb(struct vb2_buffer *vb)
return container_of(vb, struct sh_mobile_ceu_buffer, vb);
}
-static unsigned long make_bus_param(struct sh_mobile_ceu_dev *pcdev)
-{
- unsigned long flags;
-
- flags = SOCAM_MASTER |
- SOCAM_PCLK_SAMPLE_RISING |
- SOCAM_HSYNC_ACTIVE_HIGH |
- SOCAM_HSYNC_ACTIVE_LOW |
- SOCAM_VSYNC_ACTIVE_HIGH |
- SOCAM_VSYNC_ACTIVE_LOW |
- SOCAM_DATA_ACTIVE_HIGH;
-
- if (pcdev->pdata->flags & SH_CEU_FLAG_USE_8BIT_BUS)
- flags |= SOCAM_DATAWIDTH_8;
-
- if (pcdev->pdata->flags & SH_CEU_FLAG_USE_16BIT_BUS)
- flags |= SOCAM_DATAWIDTH_16;
-
- if (flags & SOCAM_DATAWIDTH_MASK)
- return flags;
-
- return 0;
-}
-
static void ceu_write(struct sh_mobile_ceu_dev *priv,
unsigned long reg_offs, u32 data)
{
@@ -737,66 +713,90 @@ static void capture_restore(struct sh_mobile_ceu_dev *pcdev, u32 capsr)
ceu_write(pcdev, CAPSR, capsr);
}
+/* Find the bus subdevice driver, e.g., CSI2 */
+static struct v4l2_subdev *find_bus_subdev(struct sh_mobile_ceu_dev *pcdev,
+ struct soc_camera_device *icd)
+{
+ if (!pcdev->csi2_pdev)
+ return soc_camera_to_subdev(icd);
+
+ return find_csi2(pcdev);
+}
+
+#define CEU_BUS_FLAGS (V4L2_MBUS_MASTER | \
+ V4L2_MBUS_PCLK_SAMPLE_RISING | \
+ 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)
+
/* Capture is not running, no interrupts, no locking needed */
static int sh_mobile_ceu_set_bus_param(struct soc_camera_device *icd,
__u32 pixfmt)
{
struct soc_camera_host *ici = to_soc_camera_host(icd->parent);
struct sh_mobile_ceu_dev *pcdev = ici->priv;
- int ret;
- unsigned long camera_flags, common_flags, value;
- int yuv_lineskip;
+ struct v4l2_subdev *sd = find_bus_subdev(pcdev, icd);
struct sh_mobile_ceu_cam *cam = icd->host_priv;
+ struct v4l2_mbus_config cfg = {.type = V4L2_MBUS_PARALLEL,};
+ unsigned long value, common_flags = CEU_BUS_FLAGS;
u32 capsr = capture_save_reset(pcdev);
+ unsigned int yuv_lineskip;
+ int ret;
- camera_flags = icd->ops->query_bus_param(icd);
- common_flags = soc_camera_bus_param_compatible(camera_flags,
- make_bus_param(pcdev));
- if (!common_flags)
- return -EINVAL;
+ /*
+ * If the client doesn't implement g_mbus_config, we just use our
+ * platform data
+ */
+ ret = v4l2_subdev_call(sd, video, g_mbus_config, &cfg);
+ if (!ret) {
+ common_flags = soc_mbus_config_compatible(&cfg,
+ common_flags);
+ if (!common_flags)
+ return -EINVAL;
+ } else if (ret != -ENOIOCTLCMD) {
+ return ret;
+ }
/* 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->pdata->flags & SH_CEU_FLAG_HSYNC_LOW)
- 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->pdata->flags & SH_CEU_FLAG_VSYNC_LOW)
- 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;
}
- 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)
return ret;
- switch (common_flags & SOCAM_DATAWIDTH_MASK) {
- case SOCAM_DATAWIDTH_8:
- pcdev->is_16bit = 0;
- break;
- case SOCAM_DATAWIDTH_16:
+ if (icd->current_fmt->host_fmt->bits_per_sample > 8)
pcdev->is_16bit = 1;
- break;
- default:
- return -EINVAL;
- }
+ else
+ pcdev->is_16bit = 0;
ceu_write(pcdev, CRCNTR, 0);
ceu_write(pcdev, CRCMPR, 0);
value = 0x00000010; /* data fetch by default */
- yuv_lineskip = 0;
+ yuv_lineskip = 0x10;
switch (icd->current_fmt->host_fmt->fourcc) {
case V4L2_PIX_FMT_NV12:
case V4L2_PIX_FMT_NV21:
- yuv_lineskip = 1; /* skip for NV12/21, no skip for NV16/61 */
+ /* convert 4:2:2 -> 4:2:0 */
+ yuv_lineskip = 0; /* skip for NV12/21, no skip for NV16/61 */
/* fall-through */
case V4L2_PIX_FMT_NV16:
case V4L2_PIX_FMT_NV61:
@@ -822,8 +822,8 @@ static int sh_mobile_ceu_set_bus_param(struct soc_camera_device *icd,
icd->current_fmt->host_fmt->fourcc == V4L2_PIX_FMT_NV61)
value ^= 0x00000100; /* swap U, V to change from NV1x->NVx1 */
- value |= common_flags & SOCAM_VSYNC_ACTIVE_LOW ? 1 << 1 : 0;
- value |= common_flags & SOCAM_HSYNC_ACTIVE_LOW ? 1 << 0 : 0;
+ value |= common_flags & V4L2_MBUS_VSYNC_ACTIVE_LOW ? 1 << 1 : 0;
+ value |= common_flags & V4L2_MBUS_HSYNC_ACTIVE_LOW ? 1 << 0 : 0;
value |= pcdev->is_16bit ? 1 << 12 : 0;
/* CSI2 mode */
@@ -866,9 +866,7 @@ static int sh_mobile_ceu_set_bus_param(struct soc_camera_device *icd,
* using 7 we swap the data bytes to match the incoming order:
* D0, D1, D2, D3, D4, D5, D6, D7
*/
- value = 0x00000017;
- if (yuv_lineskip)
- value &= ~0x00000010; /* convert 4:2:2 -> 4:2:0 */
+ value = 0x00000007 | yuv_lineskip;
ceu_write(pcdev, CDOCR, value);
ceu_write(pcdev, CFWCR, 0); /* keep "datafetch firewall" disabled */
@@ -889,13 +887,19 @@ static int sh_mobile_ceu_try_bus_param(struct soc_camera_device *icd,
{
struct soc_camera_host *ici = to_soc_camera_host(icd->parent);
struct sh_mobile_ceu_dev *pcdev = ici->priv;
- unsigned long camera_flags, common_flags;
+ struct v4l2_subdev *sd = find_bus_subdev(pcdev, icd);
+ unsigned long common_flags = CEU_BUS_FLAGS;
+ struct v4l2_mbus_config cfg = {.type = V4L2_MBUS_PARALLEL,};
+ int ret;
- camera_flags = icd->ops->query_bus_param(icd);
- common_flags = soc_camera_bus_param_compatible(camera_flags,
- make_bus_param(pcdev));
- if (!common_flags || buswidth > 16 ||
- (buswidth > 8 && !(common_flags & SOCAM_DATAWIDTH_16)))
+ ret = v4l2_subdev_call(sd, video, g_mbus_config, &cfg);
+ if (!ret)
+ common_flags = soc_mbus_config_compatible(&cfg,
+ common_flags);
+ else if (ret != -ENOIOCTLCMD)
+ return ret;
+
+ if (!common_flags || buswidth > 16)
return -EINVAL;
return 0;
@@ -905,26 +909,26 @@ static const struct soc_mbus_pixelfmt sh_mobile_ceu_formats[] = {
{
.fourcc = V4L2_PIX_FMT_NV12,
.name = "NV12",
- .bits_per_sample = 12,
- .packing = SOC_MBUS_PACKING_NONE,
+ .bits_per_sample = 8,
+ .packing = SOC_MBUS_PACKING_1_5X8,
.order = SOC_MBUS_ORDER_LE,
}, {
.fourcc = V4L2_PIX_FMT_NV21,
.name = "NV21",
- .bits_per_sample = 12,
- .packing = SOC_MBUS_PACKING_NONE,
+ .bits_per_sample = 8,
+ .packing = SOC_MBUS_PACKING_1_5X8,
.order = SOC_MBUS_ORDER_LE,
}, {
.fourcc = V4L2_PIX_FMT_NV16,
.name = "NV16",
- .bits_per_sample = 16,
- .packing = SOC_MBUS_PACKING_NONE,
+ .bits_per_sample = 8,
+ .packing = SOC_MBUS_PACKING_2X8_PADHI,
.order = SOC_MBUS_ORDER_LE,
}, {
.fourcc = V4L2_PIX_FMT_NV61,
.name = "NV61",
- .bits_per_sample = 16,
- .packing = SOC_MBUS_PACKING_NONE,
+ .bits_per_sample = 8,
+ .packing = SOC_MBUS_PACKING_2X8_PADHI,
.order = SOC_MBUS_ORDER_LE,
},
};
@@ -934,6 +938,8 @@ static bool sh_mobile_ceu_packing_supported(const struct soc_mbus_pixelfmt *fmt)
{
return fmt->packing == SOC_MBUS_PACKING_NONE ||
(fmt->bits_per_sample == 8 &&
+ fmt->packing == SOC_MBUS_PACKING_1_5X8) ||
+ (fmt->bits_per_sample == 8 &&
fmt->packing == SOC_MBUS_PACKING_2X8_PADHI) ||
(fmt->bits_per_sample > 8 &&
fmt->packing == SOC_MBUS_PACKING_EXTEND16);
@@ -966,6 +972,7 @@ static int sh_mobile_ceu_get_formats(struct soc_camera_device *icd, unsigned int
}
if (!pcdev->pdata->csi2) {
+ /* Are there any restrictions in the CSI-2 case? */
ret = sh_mobile_ceu_try_bus_param(icd, fmt->bits_per_sample);
if (ret < 0)
return 0;
@@ -1626,8 +1633,6 @@ static int sh_mobile_ceu_set_fmt(struct soc_camera_device *icd,
bool image_mode;
enum v4l2_field field;
- dev_geo(dev, "S_FMT(pix=0x%x, %ux%u)\n", pixfmt, pix->width, pix->height);
-
switch (pix->field) {
default:
pix->field = V4L2_FIELD_NONE;
@@ -1665,6 +1670,9 @@ static int sh_mobile_ceu_set_fmt(struct soc_camera_device *icd,
image_mode = false;
}
+ dev_info(dev, "S_FMT(pix=0x%x, fld 0x%x, code 0x%x, %ux%u)\n", pixfmt, mf.field, mf.code,
+ pix->width, pix->height);
+
dev_geo(dev, "4: request camera output %ux%u\n", mf.width, mf.height);
/* 5. - 9. */
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