lkml.org 
[lkml]   [2016]   [Sep]   [28]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[Patch 29/35] media: ti-vpe: Make scaler library into its own module
Date
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>
---
drivers/media/platform/Kconfig | 4 ++++
drivers/media/platform/ti-vpe/Makefile | 4 +++-
drivers/media/platform/ti-vpe/sc.c | 17 ++++++++++++++---
drivers/media/platform/ti-vpe/sc.h | 2 +-
drivers/media/platform/ti-vpe/vpe.c | 2 +-
5 files changed, 23 insertions(+), 6 deletions(-)

diff --git a/drivers/media/platform/Kconfig b/drivers/media/platform/Kconfig
index 3c15c5a53bd5..169626371a89 100644
--- a/drivers/media/platform/Kconfig
+++ b/drivers/media/platform/Kconfig
@@ -335,6 +335,7 @@ 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
@@ -353,6 +354,9 @@ 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
diff --git a/drivers/media/platform/ti-vpe/Makefile b/drivers/media/platform/ti-vpe/Makefile
index faca5e115c1d..736558d309ad 100644
--- a/drivers/media/platform/ti-vpe/Makefile
+++ b/drivers/media/platform/ti-vpe/Makefile
@@ -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

diff --git a/drivers/media/platform/ti-vpe/sc.c b/drivers/media/platform/ti-vpe/sc.c
index 02f3dae8ae42..52ce1450362f 100644
--- a/drivers/media/platform/ti-vpe/sc.c
+++ b/drivers/media/platform/ti-vpe/sc.c
@@ -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");
diff --git a/drivers/media/platform/ti-vpe/sc.h b/drivers/media/platform/ti-vpe/sc.h
index de947db98990..d0aab5ef0eca 100644
--- a/drivers/media/platform/ti-vpe/sc.h
+++ b/drivers/media/platform/ti-vpe/sc.h
@@ -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
diff --git a/drivers/media/platform/ti-vpe/vpe.c b/drivers/media/platform/ti-vpe/vpe.c
index 875da06acd67..d0d222b3a173 100644
--- a/drivers/media/platform/ti-vpe/vpe.c
+++ b/drivers/media/platform/ti-vpe/vpe.c
@@ -2454,7 +2454,7 @@ 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;
--
2.9.0
\
 
 \ /
  Last update: 2016-09-28 23:26    [W:0.043 / U:0.620 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site