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

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In preparation to add scaler support into VIP we need to
turn sc.c into its own kernel module.

Add support for multiple SC memory block as VIP contains
2 scaler instances.
This is done by passing the resource name to sc_create() and
modify the vpe invocation accordingly.

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 21:20:39 -02:00 committed by Mauro Carvalho Chehab
parent b8b3ac44dd
commit 1c6e81783c
5 changed files with 23 additions and 6 deletions
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4
drivers/media/platform/Kconfig
View File

@ -365,6 +365,7 @@ config VIDEO_TI_VPE
select VIDEOBUF2_DMA_CONTIG
select V4L2_MEM2MEM_DEV
select VIDEO_TI_VPDMA
select VIDEO_TI_SC
default n
---help---
Support for the TI VPE(Video Processing Engine) block
@ -383,6 +384,9 @@ endif # V4L_MEM2MEM_DRIVERS
config VIDEO_TI_VPDMA
tristate
config VIDEO_TI_SC
tristate
menuconfig V4L_TEST_DRIVERS
bool "Media test drivers"
depends on MEDIA_CAMERA_SUPPORT

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

@ -1,8 +1,10 @@
obj-$(CONFIG_VIDEO_TI_VPE) += ti-vpe.o
obj-$(CONFIG_VIDEO_TI_VPDMA) += ti-vpdma.o
obj-$(CONFIG_VIDEO_TI_SC) += ti-sc.o
ti-vpe-y := vpe.o sc.o csc.o
ti-vpe-y := vpe.o csc.o
ti-vpdma-y := vpdma.o
ti-sc-y := sc.o
ccflags-$(CONFIG_VIDEO_TI_VPE_DEBUG) += -DDEBUG

17
drivers/media/platform/ti-vpe/sc.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>
@ -52,6 +53,7 @@ void sc_dump_regs(struct sc_data *sc)
#undef DUMPREG
}
EXPORT_SYMBOL(sc_dump_regs);
/*
* set the horizontal scaler coefficients according to the ratio of output to
@ -100,6 +102,7 @@ void sc_set_hs_coeffs(struct sc_data *sc, void *addr, unsigned int src_w,
sc->load_coeff_h = true;
}
EXPORT_SYMBOL(sc_set_hs_coeffs);
/*
* set the vertical scaler coefficients according to the ratio of output to
@ -140,6 +143,7 @@ void sc_set_vs_coeffs(struct sc_data *sc, void *addr, unsigned int src_h,
sc->load_coeff_v = true;
}
EXPORT_SYMBOL(sc_set_vs_coeffs);
void sc_config_scaler(struct sc_data *sc, u32 *sc_reg0, u32 *sc_reg8,
u32 *sc_reg17, unsigned int src_w, unsigned int src_h,
@ -267,8 +271,9 @@ void sc_config_scaler(struct sc_data *sc, u32 *sc_reg0, u32 *sc_reg8,
*sc_reg24 = (src_w << CFG_ORG_W_SHIFT) | (src_h << CFG_ORG_H_SHIFT);
}
EXPORT_SYMBOL(sc_config_scaler);
struct sc_data *sc_create(struct platform_device *pdev)
struct sc_data *sc_create(struct platform_device *pdev, const char *res_name)
{
struct sc_data *sc;
@ -282,9 +287,10 @@ struct sc_data *sc_create(struct platform_device *pdev)
sc->pdev = pdev;
sc->res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "sc");
sc->res = platform_get_resource_byname(pdev, IORESOURCE_MEM, res_name);
if (!sc->res) {
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);
}
@ -296,3 +302,8 @@ struct sc_data *sc_create(struct platform_device *pdev)
return sc;
}
EXPORT_SYMBOL(sc_create);
MODULE_DESCRIPTION("TI VIP/VPE Scaler");
MODULE_AUTHOR("Texas Instruments Inc.");
MODULE_LICENSE("GPL v2");

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

@ -200,6 +200,6 @@ void sc_set_vs_coeffs(struct sc_data *sc, void *addr, unsigned int src_h,
void sc_config_scaler(struct sc_data *sc, u32 *sc_reg0, u32 *sc_reg8,
u32 *sc_reg17, unsigned int src_w, unsigned int src_h,
unsigned int dst_w, unsigned int dst_h);
struct sc_data *sc_create(struct platform_device *pdev);
struct sc_data *sc_create(struct platform_device *pdev, const char *res_name);
#endif

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

@ -2453,7 +2453,7 @@ static int vpe_probe(struct platform_device *pdev)
vpe_top_vpdma_reset(dev);
dev->sc = sc_create(pdev);
dev->sc = sc_create(pdev, "sc");
if (IS_ERR(dev->sc)) {
ret = PTR_ERR(dev->sc);
goto runtime_put;