Hi,
On 11/08/2012 07:47 PM, Andrey Gusakov wrote:
Ok, thanks. I will add the missing CONFIG_PM_RUNTIME dependency in Kconfig.
The driver has to have PM_RUNTIME enabled since on s3c64xx SoCs there are
power domains and the camera power domain needs to be enabled for the CAMIF
operation. The pm_runtime_* calls in the driver are supposed to ensure that.
I wonder why it works for you without PM_RUNTIME, i.e. how comes the power
domain is enabled. It is supposed to be off by default.
DS says that all power domaint are on after reset. My bootloader did
not switch then off. So when linux start everything is on.
CONFIG_PM_RUNTIME was disabled, so nothing switch them off in linux
too.
Yes, indeed. But there was a PM code added that is supposed to disable all
unused power domains on the system boot. I noticed that one needs to call
explicitly s3c64xx_pm_init() function from machine_init() callback within
the board file. So far this function is called only in mach-crag6410.c.
I'm not sure it it won't kill the display if you use it though. Probably
PM domain state should be read from a respective register and this
information passed to pm_genpd_init() function within s3c64_pm_init().
I hope to eventually prepare the ov9650 sensor driver for mainline. Your
help in making it ready for VER=0x52 would be very much appreciated. :-)
I'll try to helpful.
Next step is to make ov2460 work.
For now I can only recommend you to make the ov2460 driver more similar
to the ov9650 one.
Thanks, I'll try.
P.S. I add support of image effects just for fun. And found in DS that
s3c2450 also support effects. It's FIMC in-between of 2440 and
6400/6410. Does anyone have s3c2450 hardware to test it?
Patches adding image effect are welcome. I'm bit to busy to play with these
things, other than I don't have hardware to test it.
I wasn't really aware of CAMIF in s3c2450. I think a separate variant data
structure would need to be defined for s3c2450. If anyone ever needs it
it could be added easily. For now I'll pretend this version doesn't exist.
:-)
Attached.
I often get "VIDIOC_QUERYCAP: failed: Inappropriate ioctl for device"
This is an issue in the v4l2-ctl, it is going to be fixed by adding
VIDIOC_SUBDEV_QUERYCAP ioctl for subdevs. It has been just discussed today.
I guess you get it when running v4l2-ctl on /dev/v4l-subdev* ?
or "system error: Inappropriate ioctl for device"
I think this one is caused by unimplemented VIDIOC_G/S_PARM ioctls
at the s3c-camif driver.
Is it because of not implemented set/get framerate func? How this
Yes, I think so. ioctls as above.
should work? I mean framerate heavy depend of sensor's settings. So
set/get framerate call to fimc should get/set framerate from sensor.
What is mechanism of such things?
With user space subdev API one should control frame interval directly
on the sensor subdev device node [1]. For Gstreamer to work with
VIDIOC_G/S_PARM ioctls we need a dedicated v4l2 library (possibly with
a plugin for s3c-camif, but that shouldn't be needed since it is very
simple driver) that will translate those video node ioctls into the
subdev node ioctls [2]. Unfortunately such library is still not available.
And same question about synchronizing format of sensor and FIMC pads.
I make ov2640 work, but if did not call media-ctl for sensor, format
of FIMC sink pad and format of sensor source pad different. I think I
missed something, but reading other sources did not help.
As I explained previously, s3c-fimc is supposed to synchronize format
with the sensor subdev. Have you got pad level get_fmt callback
implemented in the ov2640 driver ?
Could you post your 'media-ctl -p' output, run right after the system boot ?
[1]
http://linuxtv.org/downloads/v4l-dvb-apis/vidioc-subdev-g-frame-interval.html
[2] http://git.linuxtv.org/v4l-utils.git/tree/
-----------------------------------------------------------------------------
From 04b88737f65f772f8b375234a92c7cdd481eac1b Mon Sep 17 00:00:00 2001
From: Andrey Gusakov <dron_gus@xxxxxxx>
Date: Mon, 5 Nov 2012 15:50:23 +0400
Subject: [PATCH] S3C-FIMC: add effect controls
SN:
I prefer using s3c-camif name, FIMC appears only in later version of
the SoCs. Also would be nice to put at least some brief description why
this patch is needed.
Signed-off-by: Andrey Gusakov <dron_gus@xxxxxxx>
---
drivers/media/platform/s3c-camif/camif-capture.c | 58
++++++++++++++++++++--
drivers/media/platform/s3c-camif/camif-core.h | 5 ++
drivers/media/platform/s3c-camif/camif-regs.c | 38 ++++++++++----
drivers/media/platform/s3c-camif/camif-regs.h | 6 ++-
4 files changed, 89 insertions(+), 18 deletions(-)
diff --git a/drivers/media/platform/s3c-camif/camif-capture.c
b/drivers/media/platform/s3c-camif/camif-capture.c
index ca31c45..046ebf6 100644
--- a/drivers/media/platform/s3c-camif/camif-capture.c
+++ b/drivers/media/platform/s3c-camif/camif-capture.c
@@ -81,6 +81,9 @@ static int s3c_camif_hw_init(struct camif_dev *camif,
struct camif_vp *vp)
camif_hw_set_source_format(camif);
camif_hw_set_camera_crop(camif);
camif_hw_set_test_pattern(camif, camif->test_pattern->val);
+ if (ip_rev >= S3C2450_CAMIF_IP_REV)
+ camif_hw_set_effect(camif, camif->effect->val,
+ camif->effect_cr->val, camif->effect_cb->val);
if (ip_rev == S3C6410_CAMIF_IP_REV)
camif_hw_set_input_path(vp);
camif_cfg_video_path(vp);
@@ -108,8 +111,8 @@ static int s3c_camif_hw_vp_init(struct camif_dev
*camif, struct camif_vp *vp)
if (ip_rev == S3C244X_CAMIF_IP_REV)
camif_hw_clear_fifo_overflow(vp);
camif_cfg_video_path(vp);
- if (ip_rev == S3C6410_CAMIF_IP_REV)
- camif_hw_set_effect(vp, false);
+ if (ip_rev >= S3C2450_CAMIF_IP_REV)
+ camif_hw_set_effect(camif, 0, 0, 0);
vp->state &= ~ST_VP_CONFIG;
spin_unlock_irqrestore(&camif->slock, flags);
@@ -374,6 +377,10 @@ irqreturn_t s3c_camif_irq_handler(int irq, void *priv)
camif_hw_set_scaler(vp);
camif_hw_set_flip(vp);
camif_hw_set_test_pattern(camif, camif->test_pattern->val);
+ if (ip_rev >= S3C2450_CAMIF_IP_REV)
+ camif_hw_set_effect(camif, camif->effect->val,
+ camif->effect_cr->val,
+ camif->effect_cb->val);
vp->state &= ~ST_VP_CONFIG;
}
unlock:
@@ -1530,7 +1537,7 @@ static const struct v4l2_ctrl_ops
s3c_camif_subdev_ctrl_ops = {
.s_ctrl = s3c_camif_subdev_s_ctrl,
};
-static const struct v4l2_ctrl_config s3c_camif_priv_ctrl = {
+static const struct v4l2_ctrl_config s3c_camif_priv_ctrl_test = {
.ops = &s3c_camif_subdev_ctrl_ops,
.id = V4L2_CTRL_CLASS_USER | 0x1001,
.type = V4L2_CTRL_TYPE_INTEGER,
@@ -1541,6 +1548,39 @@ static const struct v4l2_ctrl_config
s3c_camif_priv_ctrl = {
.def = 0,
};
+static const struct v4l2_ctrl_config s3c_camif_priv_ctrl_eff = {
+ .ops = &s3c_camif_subdev_ctrl_ops,
+ .id = V4L2_CTRL_CLASS_USER | 0x1002,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "Effect",
+ .min = 0,
+ .max = 5,
+ .step = 1,
+ .def = 0,
+};
+
+static const struct v4l2_ctrl_config s3c_camif_priv_ctrl_eff_cb = {
+ .ops = &s3c_camif_subdev_ctrl_ops,
+ .id = V4L2_CTRL_CLASS_USER | 0x1003,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "PAT_Cb",
+ .min = 16,
+ .max = 240,
+ .step = 1,
+ .def = 128,
+};
+
+static const struct v4l2_ctrl_config s3c_camif_priv_ctrl_eff_cr = {
+ .ops = &s3c_camif_subdev_ctrl_ops,
+ .id = V4L2_CTRL_CLASS_USER | 0x1004,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "PAT_Cr",
+ .min = 16,
+ .max = 240,
+ .step = 1,
+ .def = 128,
+};
SN:
There is no need to create these 3 private controls, we have now standard
controls for this image effect. Can you rework it to use V4L2_CID_COLORFX
and V4L2_CID_COLORFX_CBCR controls ? Not used option of V4L2_CID_COLORFX
can be easily masked off by passing proper mask to v4l2_ctrl_new_std().
Unfortunately the CB/CR coefficients will have fixed min and max values
then - 0, 255. That shouldn't be a big issue though.
AFAICT the range for CB/CR depends on the CSCR2Y_c bit which means:
"YCbCr Data Dynamic Range Selection for the Color Space Conversion RGB
to YCbCr"
CSCR2Y_c 1 : Wide => Y/Cb/Cr (0 ~ 255) : Wide default
0 : Narrow => Y (16 ~ 235), Cb/Cr (16 ~ 240)
By default CSCR2Y_c bit is set so we get 0 ~ 255 range.
int s3c_camif_create_subdev(struct camif_dev *camif)
{
struct v4l2_ctrl_handler *handler = &camif->ctrl_handler;
@@ -1560,10 +1600,18 @@ int s3c_camif_create_subdev(struct camif_dev *camif)
if (ret)
return ret;
- v4l2_ctrl_handler_init(handler, 1);
+ v4l2_ctrl_handler_init(handler, 4);
camif->test_pattern = v4l2_ctrl_new_custom(handler,
- &s3c_camif_priv_ctrl, NULL);
+ &s3c_camif_priv_ctrl_test, NULL);
+ camif->effect = v4l2_ctrl_new_custom(handler,
+ &s3c_camif_priv_ctrl_eff, NULL);
+ camif->effect_cr = v4l2_ctrl_new_custom(handler,
+ &s3c_camif_priv_ctrl_eff_cb, NULL);
+ camif->effect_cb = v4l2_ctrl_new_custom(handlerEffect,
+ &s3c_camif_priv_ctrl_eff_cr, NULL);
+
if (handler->error) {
+ v4l2_ctrl_handler_free(handler);
media_entity_cleanup(&sd->entity);
return handler->error;
}
diff --git a/drivers/media/platform/s3c-camif/camif-core.h
b/drivers/media/platform/s3c-camif/camif-core.h
index 96f5d3d..5f9eb3a 100644
--- a/drivers/media/platform/s3c-camif/camif-core.h
+++ b/drivers/media/platform/s3c-camif/camif-core.h
@@ -39,6 +39,8 @@
#define CAMIF_STOP_TIMEOUT 1500 /* ms */
#define S3C244X_CAMIF_IP_REV 0x20 /* 2.0 */
+#define S3C2450_CAMIF_IP_REV 0x30 /* 3.0 - not implemented, not tested */
+#define S3C6400_CAMIF_IP_REV 0x31 /* 3.1 - not implemented, not tested */
#define S3C6410_CAMIF_IP_REV 0x32 /* 3.2 */
/* struct camif_vp::state */
@@ -277,6 +279,9 @@ struct camif_dev {
struct v4l2_ctrl_handler ctrl_handler;
struct v4l2_ctrl *test_pattern;
+ struct v4l2_ctrl *effect;
+ struct v4l2_ctrl *effect_cb;
+ struct v4l2_ctrl *effect_cr;
As explained above 2 controls can be used instead.
struct camif_vp vp[CAMIF_VP_NUM];
struct vb2_alloc_ctx *alloc_ctx;
diff --git a/drivers/media/platform/s3c-camif/camif-regs.c
b/drivers/media/platform/s3c-camif/camif-regs.c
index d8c55dc..1b03f73 100644
--- a/drivers/media/platform/s3c-camif/camif-regs.c
+++ b/drivers/media/platform/s3c-camif/camif-regs.c
@@ -57,6 +57,33 @@ void camif_hw_set_test_pattern(struct camif_dev
*camif, unsigned int pattern)
camif_write(camif, S3C_CAMIF_REG_CIGCTRL, cfg);
}
+void camif_hw_set_effect(struct camif_dev *camif, unsigned int effect,
+ unsigned int cr, unsigned int cb)
+{
+ u32 cfg;
+
+ if (camif->variant->ip_revision < S3C2450_CAMIF_IP_REV)
+ return;
I think you can remove this check. Since camif_hw_set_effect() is always
called conditionally.
+
+ cfg = camif_read(camif, S3C_CAMIF_REG_CIIMGEFF(camif->vp->offset));
+ /* Set effect */
+ cfg &= ~CIIMGEFF_FIN_MASK;
+ cfg |= (effect << 26);
+ /* Set both paths */
+ if (camif->variant->ip_revision >= S3C6400_CAMIF_IP_REV) {
+ if (effect)
+ cfg |= CIIMGEFF_IE_ENABLE_MASK;
+ else
+ cfg &= ~CIIMGEFF_IE_ENABLE_MASK;
+ }
+ /* Set Cr, Cb */
+ if (effect == CIIMGEFF_FIN_ARBITRARY) {
+ cfg &= ~CIIMGEFF_PAT_CBCR_MASK;
+ cfg |= ((cb & 0xFF) << 13) | (cr & 0xFF);
Can you please use lower case for hex numbers ?
+ }
+ camif_write(camif, S3C_CAMIF_REG_CIIMGEFF(camif->vp->offset), cfg);
+}
+
static const u32 src_pixfmt_map[8][2] = {
{ V4L2_MBUS_FMT_YUYV8_2X8, CISRCFMT_ORDER422_YCBYCR },
{ V4L2_MBUS_FMT_YVYU8_2X8, CISRCFMT_ORDER422_YCRYCB },
@@ -473,17 +500,6 @@ void camif_hw_set_lastirq(struct camif_vp *vp, int
enable)
camif_write(vp->camif, addr, cfg);
}
-void camif_hw_set_effect(struct camif_vp *vp, bool active)
-{
- u32 cfg = 0;
-
- if (active) {
- /* TODO: effects support on 64xx */
- }
-
- camif_write(vp->camif, S3C_CAMIF_REG_CIIMGEFF, cfg);
-}
-
void camif_hw_enable_capture(struct camif_vp *vp)
{
struct camif_dev *camif = vp->camif;
diff --git a/drivers/media/platform/s3c-camif/camif-regs.h
b/drivers/media/platform/s3c-camif/camif-regs.h
index a3488ca..213adbc 100644
--- a/drivers/media/platform/s3c-camif/camif-regs.h
+++ b/drivers/media/platform/s3c-camif/camif-regs.h
@@ -177,8 +177,9 @@
#define S3C_CAMIF_REG_CICPTSEQ 0xc4
/* Image effects */
-#define S3C_CAMIF_REG_CIIMGEFF 0xd0
+#define S3C_CAMIF_REG_CIIMGEFF(_offs) (0xb0 + (_offs))
#define CIIMGEFF_IE_ENABLE(id) (1 << (30 + (id)))
+#define CIIMGEFF_IE_ENABLE_MASK (3 << 30)
/* Image effect: 1 - after scaler, 0 - before scaler */
#define CIIMGEFF_IE_AFTER_SC (1 << 29)
#define CIIMGEFF_FIN_MASK (7 << 26)
@@ -243,7 +244,6 @@ void camif_hw_clear_fifo_overflow(struct camif_vp *vp);
void camif_hw_set_lastirq(struct camif_vp *vp, int enable);
void camif_hw_set_input_path(struct camif_vp *vp);
void camif_hw_enable_scaler(struct camif_vp *vp, bool on);
-void camif_hw_set_effect(struct camif_vp *vp, bool active);
void camif_hw_enable_capture(struct camif_vp *vp);
void camif_hw_disable_capture(struct camif_vp *vp);
void camif_hw_set_camera_bus(struct camif_dev *camif);
@@ -254,6 +254,8 @@ void camif_hw_set_flip(struct camif_vp *vp);
void camif_hw_set_output_dma(struct camif_vp *vp);
void camif_hw_set_target_format(struct camif_vp *vp);
void camif_hw_set_test_pattern(struct camif_dev *camif, unsigned int
pattern);
+void camif_hw_set_effect(struct camif_dev *camif, unsigned int effect,
+ unsigned int cr, unsigned int cb);
void camif_hw_set_output_addr(struct camif_vp *vp, struct camif_addr
*paddr,
int index);
void camif_hw_dump_regs(struct camif_dev *camif, const char *label);
-- 1.7.0.4
Otherwise looks good.
--
Thanks,
Sylwester
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