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[media] media: ti-vpe: Make colorspace converter library into its own module 

In preparation to add colorspace conversion support to VIP,
we need to turn csc.c into its own kernel module.

Signed-off-by: Benoit Parrot <bparrot@ti.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Benoit Parrot 2016-11-18 21:20:43 -02:00 committed by Mauro Carvalho Chehab
parent ee1c02949d
commit 51b56c3941
5 changed files with 22 additions and 6 deletions
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4
drivers/media/platform/Kconfig
View File

@ -366,6 +366,7 @@ config VIDEO_TI_VPE
select V4L2_MEM2MEM_DEV
select VIDEO_TI_VPDMA
select VIDEO_TI_SC
select VIDEO_TI_CSC
default n
---help---
Support for the TI VPE(Video Processing Engine) block
@ -387,6 +388,9 @@ config VIDEO_TI_VPDMA
config VIDEO_TI_SC
tristate
config VIDEO_TI_CSC
tristate
menuconfig V4L_TEST_DRIVERS
bool "Media test drivers"
depends on MEDIA_CAMERA_SUPPORT

4
drivers/media/platform/ti-vpe/Makefile
View File

@ -1,10 +1,12 @@
obj-$(CONFIG_VIDEO_TI_VPE) += ti-vpe.o
obj-$(CONFIG_VIDEO_TI_VPDMA) += ti-vpdma.o
obj-$(CONFIG_VIDEO_TI_SC) += ti-sc.o
obj-$(CONFIG_VIDEO_TI_CSC) += ti-csc.o
ti-vpe-y := vpe.o csc.o
ti-vpe-y := vpe.o
ti-vpdma-y := vpdma.o
ti-sc-y := sc.o
ti-csc-y := csc.o
ccflags-$(CONFIG_VIDEO_TI_VPE_DEBUG) += -DDEBUG

16
drivers/media/platform/ti-vpe/csc.c
View File

@ -14,6 +14,7 @@
#include <linux/err.h>
#include <linux/io.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/videodev2.h>
@ -105,11 +106,13 @@ void csc_dump_regs(struct csc_data *csc)
#undef DUMPREG
}
EXPORT_SYMBOL(csc_dump_regs);
void csc_set_coeff_bypass(struct csc_data *csc, u32 *csc_reg5)
{
*csc_reg5 |= CSC_BYPASS;
}
EXPORT_SYMBOL(csc_set_coeff_bypass);
/*
* set the color space converter coefficient shadow register values
@ -160,8 +163,9 @@ void csc_set_coeff(struct csc_data *csc, u32 *csc_reg0,
for (; coeff < end_coeff; coeff += 2)
*shadow_csc++ = (*(coeff + 1) << 16) | *coeff;
}
EXPORT_SYMBOL(csc_set_coeff);
struct csc_data *csc_create(struct platform_device *pdev)
struct csc_data *csc_create(struct platform_device *pdev, const char *res_name)
{
struct csc_data *csc;
@ -176,9 +180,10 @@ struct csc_data *csc_create(struct platform_device *pdev)
csc->pdev = pdev;
csc->res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
"csc");
res_name);
if (csc->res == NULL) {
dev_err(&pdev->dev, "missing platform resources data\n");
dev_err(&pdev->dev, "missing '%s' platform resources data\n",
res_name);
return ERR_PTR(-ENODEV);
}
@ -190,3 +195,8 @@ struct csc_data *csc_create(struct platform_device *pdev)
return csc;
}
EXPORT_SYMBOL(csc_create);
MODULE_DESCRIPTION("TI VIP/VPE Color Space Converter");
MODULE_AUTHOR("Texas Instruments Inc.");
MODULE_LICENSE("GPL v2");

2
drivers/media/platform/ti-vpe/csc.h
View File

@ -63,6 +63,6 @@ void csc_set_coeff_bypass(struct csc_data *csc, u32 *csc_reg5);
void csc_set_coeff(struct csc_data *csc, u32 *csc_reg0,
enum v4l2_colorspace src_colorspace,
enum v4l2_colorspace dst_colorspace);
struct csc_data *csc_create(struct platform_device *pdev);
struct csc_data *csc_create(struct platform_device *pdev, const char *res_name);
#endif

2
drivers/media/platform/ti-vpe/vpe.c
View File

@ -2496,7 +2496,7 @@ static int vpe_probe(struct platform_device *pdev)
goto runtime_put;
}
dev->csc = csc_create(pdev);
dev->csc = csc_create(pdev, "csc");
if (IS_ERR(dev->csc)) {
ret = PTR_ERR(dev->csc);
goto runtime_put;