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video/edid: Add debug functions to dump the EDID and videomode content.

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This commit is contained in:
Gregory Nutt
2019-07-10 12:38:11 -06:00
parent 2811a297c7
commit 9ec264b2e1
7 changed files with 474 additions and 31 deletions
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include/nuttx/video/edid.h
+35 -8
View File
@@ -5,10 +5,10 @@
* Copyright (C) 2019 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Reference: Wikipedia
* Reference: Wikipedia (initial version)
*
* Some of structures in this file derive from FreeBSD which has a
* compatible 2-clause BSD license:
* Updated and extended with definitions from FreeBSD which has a compatible 2-clause BSD
* license:
*
* Copyright (c) 2006 Itronix Inc. All rights reserved.
* Written by Garrett D'Amore for Itronix Inc.
@@ -169,6 +169,8 @@
/* For digital input: */
#define EDID_DISPLAY_INPUT_VIDIF_SHIFT (0) /* Bits 0-3: Video interface */
#define EDID_DISPLAY_INPUT_VIDIF_MASK (15 << EDID_DISPLAY_INPUT_VIDIF_SHIFT)
# define EDID_DISPLAY_INPUT_DFP1_COMPAT (1 << EDID_DISPLAY_INPUT_VIDIF_SHIFT)
#define EDID_DISPLAY_INPUT_BITDEPTH_SHIFT (4) /* Bits 4-6: Bit depth */
#define EDID_DISPLAY_INPUT_BITDEPTH_MASK (7 << EDID_DISPLAY_INPUT_BITDEPTH_SHIFT)
@@ -181,9 +183,13 @@
* supported */
#define EDID_DISPLAY_INPUT_SYNC (1 << 3) /* Bit 3: Separate sync supported */
#define EDID_DISPLAY_INPUT_BLANK2BLACK (1 << 4) /* Bit 4: Blank to black setup */
#define EDID_DISPLAY_INPUT_LEVELS_SHIFT (0) /* Bits 5-6: Video white and sync levels,
#define EDID_DISPLAY_INPUT_LEVELS_SHIFT (5) /* Bits 5-6: Video white and sync levels,
* relative to blank */
#define EDID_DISPLAY_INPUT_LEVELS_MASK (3 << EDID_DISPLAY_INPUT_LEVELS_SHIFT)
# define EDID_DISPLAY_INPUT_LEVEL_1 (0 << EDID_DISPLAY_INPUT_LEVELS_SHIFT) /* -0.7, 0.3V */
# define EDID_DISPLAY_INPUT_LEVEL_2 (1 << EDID_DISPLAY_INPUT_LEVELS_SHIFT) /* -0.714, 0.286V */
# define EDID_DISPLAY_INPUT_LEVEL_3 (2 << EDID_DISPLAY_INPUT_LEVELS_SHIFT) /* -1.0, 0.4V */
# define EDID_DISPLAY_INPUT_LEVEL_4 (3 << EDID_DISPLAY_INPUT_LEVELS_SHIFT) /* -0.7, 0.0V */
/* Display Section: Supported Features */
@@ -205,6 +211,10 @@
#define EDID_DISPLAY_FEATURE_ATYPE_MASK (3 << EDID_DISPLAY_FEATURE_ATYPE_SHIFT)
#define EDID_DISPLAY_FEATURE_DTYPE_SHIFT (3) /* Bits 3-4: Display type (digital) */
#define EDID_DISPLAY_FEATURE_DTYPE_MASK (3 << EDID_DISPLAY_FEATURE_DTYPE_SHIFT)
# define EDID_ISPLAY_FEATURES_DTYPE_MONO (0 << EDID_DISPLAY_FEATURE_DTYPE_SHIFT)
# define EDID_ISPLAY_FEATURES_DTYPE_RGB (1 << EDID_DISPLAY_FEATURE_DTYPE_SHIFT)
# define EDID_ISPLAY_FEATURES_DTYPE_NON_RGB (2 << EDID_DISPLAY_FEATURE_DTYPE_SHIFT)
# define EDID_ISPLAY_FEATURES_DTYPE_UNDEFINED (3 << EDID_DISPLAY_FEATURE_DTYPE_SHIFT)
#define EDID_DISPLAY_FEATURE_DPMSOFF (1 << 5) /* Bit 5: DPMS active-off supported */
#define EDID_DISPLAY_FEATURE_DPMSSUSP (1 << 6) /* Bit 6: DPMS suspend supported */
#define EDID_DISPLAY_FEATURE_DPMSSTDBY (1 << 7) /* Bit 7: DPMS standby supported */
@@ -505,8 +515,9 @@ struct edid_range_s
uint16_t er_min_hfreq; /* kHz */
uint16_t er_max_hfreq; /* kHz */
uint16_t er_max_clock; /* MHz */
int er_have_gtf2;
uint16_t er_gtf2_hfreq;
bool er_have_gtf2;
uint16_t er_gtf2_c;
uint16_t er_gtf2_m;
uint16_t er_gtf2_k;
@@ -526,9 +537,9 @@ struct edid_info_s
uint8_t edid_ext_block_count;
uint16_t edid_product;
uint32_t edid_serial;
int edid_year;
int edid_week;
int edid_have_range;
uint16_t edid_year;
uint8_t edid_week;
bool edid_have_range;
struct edid_range_s edid_range;
struct edid_chroma_s edid_chroma;
@@ -563,4 +574,20 @@ struct edid_info_s
int edid_parse(FAR const uint8_t *data, FAR struct edid_info_s *edid);
/****************************************************************************
* Name: edid_dump
*
* Description:
* Dump the full content of the EDID
*
* Input Parameters:
* edid - The edid to be dumped
*
* Returned Value:
* None
*
****************************************************************************/
void edid_dump(FAR const struct edid_info_s *edid);
#endif /* __INCLUDE_NUTTX_VIDEO_EDID_H */
include/nuttx/video/videomode.h
+40 -17
View File
@@ -1,4 +1,4 @@
/********************************************************************************************
/****************************************************************************
* include/nuttx/video/videomode.h
* EDID (Extended Display Identification Data) Format
*
@@ -38,20 +38,21 @@
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
********************************************************************************************/
****************************************************************************/
#ifndef __INCLUDE_NUTTX_VIDEO_VIDEOMODE_H
#define __INCLUDE_NUTTX_VIDEO_VIDEOMODE_H
/********************************************************************************************
/****************************************************************************
* Included Files
********************************************************************************************/
****************************************************************************/
#include <stdint.h>
#include <stdbool.h>
/********************************************************************************************
/****************************************************************************
* Pre-processor Definitions
********************************************************************************************/
****************************************************************************/
/* Video mode flags used in struct hdmi_videomode_s */
@@ -70,12 +71,13 @@
#define VID_DBLCLK (1 << 13)
#define VID_CLKDIV2 (1 << 14)
/********************************************************************************************
/****************************************************************************
* Pre-processor Definitions
********************************************************************************************/
****************************************************************************/
/* This structure represents one video mode extracted from the EDID. CAREFUL: Fields
* may not change without also modification to initializer in videomode.c.
/* This structure represents one video mode extracted from the EDID.
* CAREFUL: Fields may not change without also modification to initializer
* in videomode_lookup.c.
*/
struct videomode_s
@@ -94,11 +96,11 @@ struct videomode_s
FAR const char *name;
};
/********************************************************************************************
/****************************************************************************
* Public Function Prototypes
********************************************************************************************/
****************************************************************************/
/********************************************************************************************
/****************************************************************************
* Name: sort_videomodes
*
* Description:
@@ -117,19 +119,40 @@ struct videomode_s
* Returned Value:
* None
*
********************************************************************************************/
****************************************************************************/
void sort_videomodes(FAR struct videomode_s *modes,
FAR struct videomode_s **preferred, unsigned int nmodes);
FAR struct videomode_s **preferred,
unsigned int nmodes);
/********************************************************************************************
/****************************************************************************
* Name: videomode_lookup
*
* Description:
* Find the video mode in a look-up table
*
********************************************************************************************/
****************************************************************************/
FAR const struct videomode_s *videomode_lookup(FAR const char *name);
/****************************************************************************
* Name: videomode_dump
*
* Description:
* Dump the content of a video mode one one line to the SYSLOG.
*
* Input Parameters:
* prefix - A string to print at the beginning of the line
* videomode - The videomode to be dumped
* terse - True: print only a minimal amount of data, sufficent to
* identify the video mode.
*
* Returned Value:
* None
*
****************************************************************************/
void videomode_dump(FAR const char *prefix,
FAR const struct videomode_s *videomode, bool terse);
#endif /* __INCLUDE_NUTTX_VIDEO_VIDEOMODE_H */