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[media] tpg: Export the tpg code from vivid as a module

Browse Source 
The test pattern generator will be used by other drivers as the virtual
media controller (vimc)

Signed-off-by: Helen Mae Koike Fornazier <helen.koike@collabora.co.uk>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Helen Mae Koike Fornazier 2016-04-08 17:28:58 -03:00 committed by Mauro Carvalho Chehab
parent d1e5d8bd49
commit e07d46e7e0
11 changed files with 43 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/media/common/Kconfig
View File

@ -19,3 +19,4 @@ config CYPRESS_FIRMWARE
source "drivers/media/common/b2c2/Kconfig"
source "drivers/media/common/saa7146/Kconfig"
source "drivers/media/common/siano/Kconfig"
source "drivers/media/common/v4l2-tpg/Kconfig"

2
drivers/media/common/Makefile
View File

@ -1,4 +1,4 @@
obj-y += b2c2/ saa7146/ siano/
obj-y += b2c2/ saa7146/ siano/ v4l2-tpg/
obj-$(CONFIG_VIDEO_CX2341X) += cx2341x.o
obj-$(CONFIG_VIDEO_TVEEPROM) += tveeprom.o
obj-$(CONFIG_CYPRESS_FIRMWARE) += cypress_firmware.o

2
drivers/media/common/v4l2-tpg/Kconfig Normal file
View File

@ -0,0 +1,2 @@
config VIDEO_V4L2_TPG
tristate

3
drivers/media/common/v4l2-tpg/Makefile Normal file
View File

@ -0,0 +1,3 @@
v4l2-tpg-objs := v4l2-tpg-core.o v4l2-tpg-colors.o
obj-$(CONFIG_VIDEO_V4L2_TPG) += v4l2-tpg.o

7
drivers/media/platform/vivid/vivid-tpg-colors.c → drivers/media/common/v4l2-tpg/v4l2-tpg-colors.c
View File

@ -1,5 +1,5 @@
/*
* vivid-color.c - A table that converts colors to various colorspaces
* v4l2-tpg-colors.c - A table that converts colors to various colorspaces
*
* The test pattern generator uses the tpg_colors for its test patterns.
* For testing colorspaces the first 8 colors of that table need to be
@ -12,7 +12,7 @@
* This source also contains the code used to generate the tpg_csc_colors
* table. Run the following command to compile it:
*
* gcc vivid-tpg-colors.c -DCOMPILE_APP -o gen-colors -lm
* gcc v4l2-tpg-colors.c -DCOMPILE_APP -o gen-colors -lm
*
* and run the utility.
*
@ -36,8 +36,7 @@
*/
#include <linux/videodev2.h>
#include "vivid-tpg-colors.h"
#include <media/v4l2-tpg-colors.h>
/* sRGB colors with range [0-255] */
const struct color tpg_colors[TPG_COLOR_MAX] = {

25
drivers/media/platform/vivid/vivid-tpg.c → drivers/media/common/v4l2-tpg/v4l2-tpg-core.c
View File

@ -1,5 +1,5 @@
/*
* vivid-tpg.c - Test Pattern Generator
* v4l2-tpg-core.c - Test Pattern Generator
*
* Note: gen_twopix and tpg_gen_text are based on code from vivi.c. See the
* vivi.c source for the copyright information of those functions.
@ -20,7 +20,8 @@
* SOFTWARE.
*/
#include "vivid-tpg.h"
#include <linux/module.h>
#include <media/v4l2-tpg.h>
/* Must remain in sync with enum tpg_pattern */
const char * const tpg_pattern_strings[] = {
@ -48,6 +49,7 @@ const char * const tpg_pattern_strings[] = {
"Noise",
NULL
};
EXPORT_SYMBOL_GPL(tpg_pattern_strings);
/* Must remain in sync with enum tpg_aspect */
const char * const tpg_aspect_strings[] = {
@ -58,6 +60,7 @@ const char * const tpg_aspect_strings[] = {
"16x9 Anamorphic",
NULL
};
EXPORT_SYMBOL_GPL(tpg_aspect_strings);
/*
* Sine table: sin[0] = 127 * sin(-180 degrees)
@ -93,6 +96,7 @@ void tpg_set_font(const u8 *f)
{
font8x16 = f;
}
EXPORT_SYMBOL_GPL(tpg_set_font);
void tpg_init(struct tpg_data *tpg, unsigned w, unsigned h)
{
@ -114,6 +118,7 @@ void tpg_init(struct tpg_data *tpg, unsigned w, unsigned h)
tpg->colorspace = V4L2_COLORSPACE_SRGB;
tpg->perc_fill = 100;
}
EXPORT_SYMBOL_GPL(tpg_init);
int tpg_alloc(struct tpg_data *tpg, unsigned max_w)
{
@ -150,6 +155,7 @@ int tpg_alloc(struct tpg_data *tpg, unsigned max_w)
}
return 0;
}
EXPORT_SYMBOL_GPL(tpg_alloc);
void tpg_free(struct tpg_data *tpg)
{
@ -174,6 +180,7 @@ void tpg_free(struct tpg_data *tpg)
tpg->random_line[plane] = NULL;
}
}
EXPORT_SYMBOL_GPL(tpg_free);
bool tpg_s_fourcc(struct tpg_data *tpg, u32 fourcc)
{
@ -403,6 +410,7 @@ bool tpg_s_fourcc(struct tpg_data *tpg, u32 fourcc)
}
return true;
}
EXPORT_SYMBOL_GPL(tpg_s_fourcc);
void tpg_s_crop_compose(struct tpg_data *tpg, const struct v4l2_rect *crop,
const struct v4l2_rect *compose)
@ -418,6 +426,7 @@ void tpg_s_crop_compose(struct tpg_data *tpg, const struct v4l2_rect *crop,
tpg->scaled_width = 2;
tpg->recalc_lines = true;
}
EXPORT_SYMBOL_GPL(tpg_s_crop_compose);
void tpg_reset_source(struct tpg_data *tpg, unsigned width, unsigned height,
u32 field)
@ -442,6 +451,7 @@ void tpg_reset_source(struct tpg_data *tpg, unsigned width, unsigned height,
(2 * tpg->hdownsampling[p]);
tpg->recalc_square_border = true;
}
EXPORT_SYMBOL_GPL(tpg_reset_source);
static enum tpg_color tpg_get_textbg_color(struct tpg_data *tpg)
{
@ -1250,6 +1260,7 @@ unsigned tpg_g_interleaved_plane(const struct tpg_data *tpg, unsigned buf_line)
return 0;
}
}
EXPORT_SYMBOL_GPL(tpg_g_interleaved_plane);
/* Return how many pattern lines are used by the current pattern. */
static unsigned tpg_get_pat_lines(const struct tpg_data *tpg)
@ -1725,6 +1736,7 @@ void tpg_gen_text(const struct tpg_data *tpg, u8 *basep[TPG_MAX_PLANES][2],
}
}
}
EXPORT_SYMBOL_GPL(tpg_gen_text);
void tpg_update_mv_step(struct tpg_data *tpg)
{
@ -1773,6 +1785,7 @@ void tpg_update_mv_step(struct tpg_data *tpg)
if (factor < 0)
tpg->mv_vert_step = tpg->src_height - tpg->mv_vert_step;
}
EXPORT_SYMBOL_GPL(tpg_update_mv_step);
/* Map the line number relative to the crop rectangle to a frame line number */
static unsigned tpg_calc_frameline(const struct tpg_data *tpg, unsigned src_y,
@ -1862,6 +1875,7 @@ void tpg_calc_text_basep(struct tpg_data *tpg,
if (p == 0 && tpg->interleaved)
tpg_calc_text_basep(tpg, basep, 1, vbuf);
}
EXPORT_SYMBOL_GPL(tpg_calc_text_basep);
static int tpg_pattern_avg(const struct tpg_data *tpg,
unsigned pat1, unsigned pat2)
@ -1891,6 +1905,7 @@ void tpg_log_status(struct tpg_data *tpg)
pr_info("tpg quantization: %d/%d\n", tpg->quantization, tpg->real_quantization);
pr_info("tpg RGB range: %d/%d\n", tpg->rgb_range, tpg->real_rgb_range);
}
EXPORT_SYMBOL_GPL(tpg_log_status);
/*
* This struct contains common parameters used by both the drawing of the
@ -2296,6 +2311,7 @@ void tpg_fill_plane_buffer(struct tpg_data *tpg, v4l2_std_id std,
vbuf + buf_line * params.stride);
}
}
EXPORT_SYMBOL_GPL(tpg_fill_plane_buffer);
void tpg_fillbuffer(struct tpg_data *tpg, v4l2_std_id std, unsigned p, u8 *vbuf)
{
@ -2312,3 +2328,8 @@ void tpg_fillbuffer(struct tpg_data *tpg, v4l2_std_id std, unsigned p, u8 *vbuf)
offset += tpg_calc_plane_size(tpg, i);
}
}
EXPORT_SYMBOL_GPL(tpg_fillbuffer);
MODULE_DESCRIPTION("V4L2 Test Pattern Generator");
MODULE_AUTHOR("Hans Verkuil");
MODULE_LICENSE("GPL");

1
drivers/media/platform/vivid/Kconfig
View File

@ -7,6 +7,7 @@ config VIDEO_VIVID
select FB_CFB_COPYAREA
select FB_CFB_IMAGEBLIT
select VIDEOBUF2_VMALLOC
select VIDEO_V4L2_TPG
default n
---help---
Enables a virtual video driver. This driver emulates a webcam,

2
drivers/media/platform/vivid/Makefile
View File

@ -2,5 +2,5 @@ vivid-objs := vivid-core.o vivid-ctrls.o vivid-vid-common.o vivid-vbi-gen.o \
vivid-vid-cap.o vivid-vid-out.o vivid-kthread-cap.o vivid-kthread-out.o \
vivid-radio-rx.o vivid-radio-tx.o vivid-radio-common.o \
vivid-rds-gen.o vivid-sdr-cap.o vivid-vbi-cap.o vivid-vbi-out.o \
vivid-osd.o vivid-tpg.o vivid-tpg-colors.o
vivid-osd.o
obj-$(CONFIG_VIDEO_VIVID) += vivid.o

2
drivers/media/platform/vivid/vivid-core.h
View File

@ -25,7 +25,7 @@
#include <media/v4l2-device.h>
#include <media/v4l2-dev.h>
#include <media/v4l2-ctrls.h>
#include "vivid-tpg.h"
#include <media/v4l2-tpg.h>
#include "vivid-rds-gen.h"
#include "vivid-vbi-gen.h"

6
drivers/media/platform/vivid/vivid-tpg-colors.h → include/media/v4l2-tpg-colors.h
View File

@ -1,5 +1,5 @@
/*
* vivid-color.h - Color definitions for the test pattern generator
* v4l2-tpg-colors.h - Color definitions for the test pattern generator
*
* Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
*
@ -17,8 +17,8 @@
* SOFTWARE.
*/
#ifndef _VIVID_COLORS_H_
#define _VIVID_COLORS_H_
#ifndef _V4L2_TPG_COLORS_H_
#define _V4L2_TPG_COLORS_H_
struct color {
unsigned char r, g, b;

9
drivers/media/platform/vivid/vivid-tpg.h → include/media/v4l2-tpg.h
View File

@ -1,5 +1,5 @@
/*
* vivid-tpg.h - Test Pattern Generator
* v4l2-tpg.h - Test Pattern Generator
*
* Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
*
@ -17,8 +17,8 @@
* SOFTWARE.
*/
#ifndef _VIVID_TPG_H_
#define _VIVID_TPG_H_
#ifndef _V4L2_TPG_H_
#define _V4L2_TPG_H_
#include <linux/types.h>
#include <linux/errno.h>
@ -26,8 +26,7 @@
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/videodev2.h>
#include "vivid-tpg-colors.h"
#include <media/v4l2-tpg-colors.h>
enum tpg_pattern {
TPG_PAT_75_COLORBAR,