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[media] exynos4-is: Move common functions to a separate module 

Create a common module (exynos4-is-common.ko) for common functions
used across the exynos4-is video device and subdev drivers.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Sylwester Nawrocki 2013-06-10 08:51:44 -03:00 committed by Mauro Carvalho Chehab
parent a44e3b206a
commit 045a1faca8
5 changed files with 66 additions and 28 deletions
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7
drivers/media/platform/exynos4-is/Kconfig
View File

@ -8,12 +8,16 @@ config VIDEO_SAMSUNG_EXYNOS4_IS
if VIDEO_SAMSUNG_EXYNOS4_IS
config VIDEO_EXYNOS4_IS_COMMON
tristate
config VIDEO_S5P_FIMC
tristate "S5P/EXYNOS4 FIMC/CAMIF camera interface driver"
depends on I2C
select VIDEOBUF2_DMA_CONTIG
select V4L2_MEM2MEM_DEV
select MFD_SYSCON if OF
select VIDEO_EXYNOS4_IS_COMMON
help
This is a V4L2 driver for Samsung S5P and EXYNOS4 SoC camera host
interface and video postprocessor (FIMC) devices.
@ -38,6 +42,7 @@ config VIDEO_EXYNOS_FIMC_LITE
tristate "EXYNOS FIMC-LITE camera interface driver"
depends on I2C
select VIDEOBUF2_DMA_CONTIG
select VIDEO_EXYNOS4_IS_COMMON
help
This is a V4L2 driver for Samsung EXYNOS4/5 SoC FIMC-LITE camera
host interface.
@ -58,4 +63,4 @@ config VIDEO_EXYNOS4_FIMC_IS
To compile this driver as a module, choose M here: the
module will be called exynos4-fimc-is.
endif # VIDEO_SAMSUNG_S5P_FIMC
endif # VIDEO_SAMSUNG_EXYNOS4_IS

5
drivers/media/platform/exynos4-is/Makefile
View File

@ -1,10 +1,13 @@
s5p-fimc-objs := fimc-core.o fimc-reg.o fimc-m2m.o fimc-capture.o media-dev.o
exynos-fimc-lite-objs += fimc-lite-reg.o fimc-lite.o
s5p-csis-objs := mipi-csis.o
exynos4-is-common-objs := common.o
exynos-fimc-is-objs := fimc-is.o fimc-isp.o fimc-is-sensor.o fimc-is-regs.o
exynos-fimc-is-objs += fimc-is-param.o fimc-is-errno.o fimc-is-i2c.o
s5p-csis-objs := mipi-csis.o
obj-$(CONFIG_VIDEO_S5P_MIPI_CSIS) += s5p-csis.o
obj-$(CONFIG_VIDEO_EXYNOS_FIMC_LITE) += exynos-fimc-lite.o
obj-$(CONFIG_VIDEO_EXYNOS4_FIMC_IS) += exynos-fimc-is.o
obj-$(CONFIG_VIDEO_S5P_FIMC) += s5p-fimc.o
obj-$(CONFIG_VIDEO_EXYNOS4_IS_COMMON) += exynos4-is-common.o

41
drivers/media/platform/exynos4-is/common.c Normal file
View File

@ -0,0 +1,41 @@
/*
* Samsung S5P/EXYNOS4 SoC Camera Subsystem driver
*
* Copyright (C) 2013 Samsung Electronics Co., Ltd.
* Author: Sylwester Nawrocki <s.nawrocki@samsung.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/module.h>
#include <media/s5p_fimc.h>
#include "common.h"
/* Called with the media graph mutex held or entity->stream_count > 0. */
struct v4l2_subdev *fimc_find_remote_sensor(struct media_entity *entity)
{
struct media_pad *pad = &entity->pads[0];
struct v4l2_subdev *sd;
while (pad->flags & MEDIA_PAD_FL_SINK) {
/* source pad */
pad = media_entity_remote_pad(pad);
if (pad == NULL ||
media_entity_type(pad->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
break;
sd = media_entity_to_v4l2_subdev(pad->entity);
if (sd->grp_id == GRP_ID_FIMC_IS_SENSOR ||
sd->grp_id == GRP_ID_SENSOR)
return sd;
/* sink pad */
pad = &sd->entity.pads[0];
}
return NULL;
}
EXPORT_SYMBOL(fimc_find_remote_sensor);
MODULE_LICENSE("GPL");

12
drivers/media/platform/exynos4-is/common.h Normal file
View File

@ -0,0 +1,12 @@
/*
* Copyright (C) 2013 Samsung Electronics Co., Ltd.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <media/media-entity.h>
#include <media/v4l2-subdev.h>
struct v4l2_subdev *fimc_find_remote_sensor(struct media_entity *entity);

29
drivers/media/platform/exynos4-is/fimc-lite.c
View File

@ -32,6 +32,7 @@
#include <media/videobuf2-dma-contig.h>
#include <media/s5p_fimc.h>
#include "common.h"
#include "fimc-core.h"
#include "fimc-lite.h"
#include "fimc-lite-reg.h"
@ -131,30 +132,6 @@ static const struct fimc_fmt *fimc_lite_find_format(const u32 *pixelformat,
return def_fmt;
}
/* Called with the media graph mutex held or @me stream_count > 0. */
static struct v4l2_subdev *__find_remote_sensor(struct media_entity *me)
{
struct media_pad *pad = &me->pads[0];
struct v4l2_subdev *sd;
while (pad->flags & MEDIA_PAD_FL_SINK) {
/* source pad */
pad = media_entity_remote_pad(pad);
if (pad == NULL ||
media_entity_type(pad->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
break;
sd = media_entity_to_v4l2_subdev(pad->entity);
if (sd->grp_id == GRP_ID_FIMC_IS_SENSOR ||
sd->grp_id == GRP_ID_SENSOR)
return sd;
/* sink pad */
pad = &sd->entity.pads[0];
}
return NULL;
}
static int fimc_lite_hw_init(struct fimc_lite *fimc, bool isp_output)
{
struct fimc_source_info *si;
@ -830,7 +807,7 @@ static int fimc_lite_streamon(struct file *file, void *priv,
if (ret < 0)
goto err_p_stop;
fimc->sensor = __find_remote_sensor(&fimc->subdev.entity);
fimc->sensor = fimc_find_remote_sensor(&fimc->subdev.entity);
ret = vb2_ioctl_streamon(file, priv, type);
if (!ret) {
@ -1212,7 +1189,7 @@ static int fimc_lite_subdev_s_stream(struct v4l2_subdev *sd, int on)
* The pipeline links are protected through entity.stream_count
* so there is no need to take the media graph mutex here.
*/
fimc->sensor = __find_remote_sensor(&sd->entity);
fimc->sensor = fimc_find_remote_sensor(&sd->entity);
if (atomic_read(&fimc->out_path) != FIMC_IO_ISP)
return -ENOIOCTLCMD;